From 4e41871d718048a3ef18dfe10607745cc94b7fc4 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Thu, 16 Jan 2014 07:27:47 +0100 Subject: good bye cris, hardware is eol, latest toolchain is broken, qemu emulator support is bad, kernel needs patches for serial and network --- target/cris/patches/cris.patch | 5713 ---------------------------------------- 1 file changed, 5713 deletions(-) delete mode 100644 target/cris/patches/cris.patch (limited to 'target/cris/patches/cris.patch') diff --git a/target/cris/patches/cris.patch b/target/cris/patches/cris.patch deleted file mode 100644 index 0fefa318c..000000000 --- a/target/cris/patches/cris.patch +++ /dev/null @@ -1,5713 +0,0 @@ -diff -Nur linux-2.6.36.orig/arch/cris/Kconfig linux-2.6.36/arch/cris/Kconfig ---- linux-2.6.36.orig/arch/cris/Kconfig 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/arch/cris/Kconfig 2010-11-15 17:57:17.000000000 +0100 -@@ -177,6 +177,12 @@ - help - Size of DRAM (decimal in MB) typically 2, 8 or 16. - -+config ETRAX_MTD_SIZE -+ hex "MTD size (hex)" -+ default "0x00800000" -+ help -+ Size of MTD device typically 4 or 8 MB. -+ - config ETRAX_VMEM_SIZE - int "Video memory size (dec, in MB)" - depends on ETRAX_ARCH_V32 && !ETRAXFS -@@ -282,7 +288,7 @@ - select MTD_CFI_AMDSTD - select MTD_JEDECPROBE if ETRAX_ARCH_V32 - select MTD_CHAR -- select MTD_BLOCK -+ select MTD_BLOCK_RO - select MTD_PARTITIONS - select MTD_CONCAT - select MTD_COMPLEX_MAPPINGS -@@ -671,6 +677,11 @@ - - source "drivers/ide/Kconfig" - -+#mysteriously part of this standard linux driver was removed from cris build! - info@crisos.org -+source "drivers/scsi/Kconfig" -+ -+source "drivers/media/Kconfig" -+ - source "drivers/net/Kconfig" - - source "drivers/i2c/Kconfig" -diff -Nur linux-2.6.36.orig/arch/cris/Makefile linux-2.6.36/arch/cris/Makefile ---- linux-2.6.36.orig/arch/cris/Makefile 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/arch/cris/Makefile 2010-11-15 17:57:17.000000000 +0100 -@@ -40,10 +40,10 @@ - - LD = $(CROSS_COMPILE)ld -mcrislinux - --OBJCOPYFLAGS := -O binary -R .note -R .comment -S -+OBJCOPYFLAGS := -O binary -R .bss -R .note -R .note.gnu.build-id -R .comment -S - - KBUILD_AFLAGS += -mlinux -march=$(arch-y) $(inc) --KBUILD_CFLAGS += -mlinux -march=$(arch-y) -pipe $(inc) -+KBUILD_CFLAGS += -mlinux -march=$(arch-y) -pipe -fno-peephole2 $(inc) - KBUILD_CPPFLAGS += $(inc) - - ifdef CONFIG_FRAME_POINTER -diff -Nur linux-2.6.36.orig/arch/cris/arch-v10/drivers/axisflashmap.c linux-2.6.36/arch/cris/arch-v10/drivers/axisflashmap.c ---- linux-2.6.36.orig/arch/cris/arch-v10/drivers/axisflashmap.c 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/arch/cris/arch-v10/drivers/axisflashmap.c 2010-11-15 17:57:17.000000000 +0100 -@@ -113,7 +113,7 @@ - - /* If no partition-table was found, we use this default-set. */ - #define MAX_PARTITIONS 7 --#define NUM_DEFAULT_PARTITIONS 3 -+#define NUM_DEFAULT_PARTITIONS 4 - - /* - * Default flash size is 2MB. CONFIG_ETRAX_PTABLE_SECTOR is most likely the -@@ -122,19 +122,24 @@ - */ - static struct mtd_partition axis_default_partitions[NUM_DEFAULT_PARTITIONS] = { - { -- .name = "boot firmware", -- .size = CONFIG_ETRAX_PTABLE_SECTOR, -+ .name = "kernel", -+ .size = 0x00, - .offset = 0 - }, - { -- .name = "kernel", -- .size = 0x200000 - (6 * CONFIG_ETRAX_PTABLE_SECTOR), -- .offset = CONFIG_ETRAX_PTABLE_SECTOR -+ .name = "rootfs", -+ .size = 0x200000 , -+ .offset = 0x200000 - }, - { -- .name = "filesystem", -- .size = 5 * CONFIG_ETRAX_PTABLE_SECTOR, -- .offset = 0x200000 - (5 * CONFIG_ETRAX_PTABLE_SECTOR) -+ .name = "cfgfs", -+ .size = 0x20000 , -+ .offset = CONFIG_ETRAX_MTD_SIZE - 0x20000 -+ }, -+ { -+ .name = "linux", -+ .size = CONFIG_ETRAX_MTD_SIZE - 0x20000, -+ .offset = 0 - } - }; - -@@ -281,6 +286,11 @@ - struct partitiontable_entry *ptable; - int use_default_ptable = 1; /* Until proven otherwise. */ - const char pmsg[] = " /dev/flash%d at 0x%08x, size 0x%08x\n"; -+ unsigned int kernel_part_size = 0; -+ unsigned char *flash_mem = (unsigned char*)(FLASH_CACHED_ADDR); -+ unsigned int flash_scan_count = 0; -+ const char *part_magic = "ACME_PART_MAGIC"; -+ unsigned int magic_len = strlen(part_magic); - - if (!(mymtd = flash_probe())) { - /* There's no reason to use this module if no flash chip can -@@ -292,6 +302,31 @@ - mymtd->name, mymtd->size); - axisflash_mtd = mymtd; - } -+ /* scan flash to findout where out partition starts */ -+ -+ printk(KERN_INFO "Scanning flash for end of kernel magic\n"); -+ for(flash_scan_count = 0; flash_scan_count < 100000; flash_scan_count++){ -+ if(strncmp(&flash_mem[flash_scan_count], part_magic, magic_len - 1) == 0) -+ { -+ kernel_part_size = flash_mem[flash_scan_count + magic_len ]; -+ kernel_part_size <<= 8; -+ kernel_part_size += flash_mem[flash_scan_count + magic_len + 2]; -+ kernel_part_size <<= 8; -+ kernel_part_size += flash_mem[flash_scan_count + magic_len + 1]; -+ kernel_part_size <<= 8; -+ kernel_part_size += flash_mem[flash_scan_count + magic_len + 3]; -+ printk(KERN_INFO "Kernel ends at 0x%.08X\n", kernel_part_size); -+ flash_scan_count = 1100000; -+ } -+ } -+ -+ -+ if(kernel_part_size){ -+ kernel_part_size = (kernel_part_size & 0xffff0000); -+ axis_default_partitions[0].size = kernel_part_size; -+ axis_default_partitions[1].size = mymtd->size - axis_default_partitions[0].size - axis_default_partitions[2].size; -+ axis_default_partitions[1].offset = axis_default_partitions[0].size; -+ } - - if (mymtd) { - mymtd->owner = THIS_MODULE; -@@ -360,21 +395,6 @@ - use_default_ptable = !ptable_ok; - } - -- if (romfs_in_flash) { -- /* Add an overlapping device for the root partition (romfs). */ -- -- axis_partitions[pidx].name = "romfs"; -- axis_partitions[pidx].size = romfs_length; -- axis_partitions[pidx].offset = romfs_start - FLASH_CACHED_ADDR; -- axis_partitions[pidx].mask_flags |= MTD_WRITEABLE; -- -- printk(KERN_INFO -- " Adding readonly flash partition for romfs image:\n"); -- printk(pmsg, pidx, axis_partitions[pidx].offset, -- axis_partitions[pidx].size); -- pidx++; -- } -- - #ifdef CONFIG_ETRAX_AXISFLASHMAP_MTD0WHOLE - if (mymtd) { - main_partition.size = mymtd->size; -@@ -397,36 +417,6 @@ - if (err) - panic("axisflashmap could not add MTD partitions!\n"); - } -- -- if (!romfs_in_flash) { -- /* Create an RAM device for the root partition (romfs). */ -- --#if !defined(CONFIG_MTD_MTDRAM) || (CONFIG_MTDRAM_TOTAL_SIZE != 0) || (CONFIG_MTDRAM_ABS_POS != 0) -- /* No use trying to boot this kernel from RAM. Panic! */ -- printk(KERN_EMERG "axisflashmap: Cannot create an MTD RAM " -- "device due to kernel (mis)configuration!\n"); -- panic("This kernel cannot boot from RAM!\n"); --#else -- struct mtd_info *mtd_ram; -- -- mtd_ram = kmalloc(sizeof(struct mtd_info), GFP_KERNEL); -- if (!mtd_ram) -- panic("axisflashmap couldn't allocate memory for " -- "mtd_info!\n"); -- -- printk(KERN_INFO " Adding RAM partition for romfs image:\n"); -- printk(pmsg, pidx, (unsigned)romfs_start, -- (unsigned)romfs_length); -- -- err = mtdram_init_device(mtd_ram, -- (void *)romfs_start, -- romfs_length, -- "romfs"); -- if (err) -- panic("axisflashmap could not initialize MTD RAM " -- "device!\n"); --#endif -- } - return err; - } - -diff -Nur linux-2.6.36.orig/arch/cris/arch-v10/drivers/ds1302.c linux-2.6.36/arch/cris/arch-v10/drivers/ds1302.c ---- linux-2.6.36.orig/arch/cris/arch-v10/drivers/ds1302.c 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/arch/cris/arch-v10/drivers/ds1302.c 2010-11-15 17:57:17.000000000 +0100 -@@ -22,6 +22,7 @@ - #include - #include - #include -+#include - - #include - #include -@@ -499,6 +500,10 @@ - return 0; - } - -+#ifdef CONFIG_SYSFS -+static struct class *rtc_class; -+#endif -+ - static int __init ds1302_register(void) - { - ds1302_init(); -@@ -507,6 +512,12 @@ - ds1302_name, RTC_MAJOR_NR); - return -1; - } -+ #ifdef CONFIG_SYSFS -+ rtc_class = class_create(THIS_MODULE, "rtc"); -+ class_device_create(rtc_class, NULL, MKDEV(RTC_MAJOR_NR, 0), -+ NULL, "rtc"); -+ #endif -+ - return 0; - - } -diff -Nur linux-2.6.36.orig/arch/cris/arch-v10/drivers/gpio.c linux-2.6.36/arch/cris/arch-v10/drivers/gpio.c ---- linux-2.6.36.orig/arch/cris/arch-v10/drivers/gpio.c 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/arch/cris/arch-v10/drivers/gpio.c 2010-11-15 17:57:17.000000000 +0100 -@@ -20,6 +20,7 @@ - #include - #include - #include -+#include - - #include - #include -@@ -797,6 +798,10 @@ - - /* main driver initialization routine, called from mem.c */ - -+#ifdef CONFIG_SYSFS -+static struct class *gpio_class; -+#endif -+ - static int __init gpio_init(void) - { - int res; -@@ -810,6 +815,13 @@ - return res; - } - -+#ifdef CONFIG_SYSFS -+ gpio_class = class_create(THIS_MODULE, "gpio"); -+ device_create(gpio_class, NULL, MKDEV(GPIO_MAJOR, 0), NULL, "gpioa"); -+ device_create(gpio_class, NULL, MKDEV(GPIO_MAJOR, 1), NULL, "gpiob"); -+ device_create(gpio_class, NULL, MKDEV(GPIO_MAJOR, 2), NULL, "leds"); -+ device_create(gpio_class, NULL, MKDEV(GPIO_MAJOR, 3), NULL, "gpiog"); -+#endif - /* Clear all leds */ - #if defined (CONFIG_ETRAX_CSP0_LEDS) || defined (CONFIG_ETRAX_PA_LEDS) || defined (CONFIG_ETRAX_PB_LEDS) - CRIS_LED_NETWORK_SET(0); -diff -Nur linux-2.6.36.orig/arch/cris/arch-v10/lib/hw_settings.S linux-2.6.36/arch/cris/arch-v10/lib/hw_settings.S ---- linux-2.6.36.orig/arch/cris/arch-v10/lib/hw_settings.S 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/arch/cris/arch-v10/lib/hw_settings.S 2010-11-15 17:57:17.000000000 +0100 -@@ -58,3 +58,5 @@ - .dword R_PORT_PB_SET - .dword PB_SET_VALUE - .dword 0 ; No more register values -+ .ascii "ACME_PART_MAGIC" -+ .dword 0xdeadc0de -diff -Nur linux-2.6.36.orig/arch/cris/arch-v10/mm/init.c linux-2.6.36/arch/cris/arch-v10/mm/init.c ---- linux-2.6.36.orig/arch/cris/arch-v10/mm/init.c 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/arch/cris/arch-v10/mm/init.c 2010-11-15 17:57:17.000000000 +0100 -@@ -184,6 +184,9 @@ - - free_area_init_node(0, zones_size, PAGE_OFFSET >> PAGE_SHIFT, 0); - } -+void free_initrd_mem(unsigned long start, unsigned long end) -+{ -+} - - /* Initialize remaps of some I/O-ports. It is important that this - * is called before any driver is initialized. -diff -Nur linux-2.6.36.orig/arch/cris/boot/Makefile linux-2.6.36/arch/cris/boot/Makefile ---- linux-2.6.36.orig/arch/cris/boot/Makefile 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/arch/cris/boot/Makefile 2010-11-15 17:57:17.000000000 +0100 -@@ -5,7 +5,7 @@ - objcopyflags-$(CONFIG_ETRAX_ARCH_V10) += -R .note -R .comment - objcopyflags-$(CONFIG_ETRAX_ARCH_V32) += --remove-section=.bss --remove-section=.note.gnu.build-id - --OBJCOPYFLAGS = -O binary $(objcopyflags-y) -+#OBJCOPYFLAGS = -O binary $(objcopyflags-y) - - - subdir- := compressed rescue -@@ -17,7 +17,6 @@ - - $(obj)/compressed/vmlinux: $(obj)/Image FORCE - $(Q)$(MAKE) $(build)=$(obj)/compressed $@ -- $(Q)$(MAKE) $(build)=$(obj)/rescue $(obj)/rescue/rescue.bin - - $(obj)/zImage: $(obj)/compressed/vmlinux - @cp $< $@ -diff -Nur linux-2.6.36.orig/arch/cris/boot/compressed/Makefile linux-2.6.36/arch/cris/boot/compressed/Makefile ---- linux-2.6.36.orig/arch/cris/boot/compressed/Makefile 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/arch/cris/boot/compressed/Makefile 2010-11-15 17:57:17.000000000 +0100 -@@ -18,7 +18,7 @@ - OBJECTS-$(CONFIG_ETRAX_ARCH_V32) = $(obj)/head_v32.o - OBJECTS-$(CONFIG_ETRAX_ARCH_V10) = $(obj)/head_v10.o - OBJECTS= $(OBJECTS-y) $(obj)/misc.o --OBJCOPYFLAGS = -O binary --remove-section=.bss -+#OBJCOPYFLAGS = -O binary --remove-section=.bss - - quiet_cmd_image = BUILD $@ - cmd_image = cat $(obj)/decompress.bin $(obj)/piggy.gz > $@ -diff -Nur linux-2.6.36.orig/drivers/net/cris/eth_v10.c linux-2.6.36/drivers/net/cris/eth_v10.c ---- linux-2.6.36.orig/drivers/net/cris/eth_v10.c 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/drivers/net/cris/eth_v10.c 2010-11-15 17:57:17.000000000 +0100 -@@ -1718,7 +1718,7 @@ - static void - e100_netpoll(struct net_device* netdev) - { -- e100rxtx_interrupt(NETWORK_DMA_TX_IRQ_NBR, netdev, NULL); -+ e100rxtx_interrupt(NETWORK_DMA_TX_IRQ_NBR, netdev); - } - #endif - -diff -Nur linux-2.6.36.orig/drivers/serial/crisv10.c linux-2.6.36/drivers/serial/crisv10.c ---- linux-2.6.36.orig/drivers/serial/crisv10.c 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/drivers/serial/crisv10.c 2010-11-15 17:57:17.000000000 +0100 -@@ -13,6 +13,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -27,6 +28,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -4426,6 +4428,7 @@ - #endif - }; - -+static struct class *rs_class; - static int __init rs_init(void) - { - int i; -@@ -4559,6 +4562,24 @@ - #endif - #endif /* CONFIG_SVINTO_SIM */ - -+ rs_class = class_create(THIS_MODULE, "rs_tty"); -+#ifdef CONFIG_ETRAX_SERIAL_PORT0 -+ device_create(rs_class, NULL, -+ MKDEV(TTY_MAJOR, 64), NULL, "ttyS0"); -+#endif -+#ifdef CONFIG_ETRAX_SERIAL_PORT1 -+ device_create(rs_class, NULL, -+ MKDEV(TTY_MAJOR, 65), NULL, "ttyS1"); -+#endif -+#ifdef CONFIG_ETRAX_SERIAL_PORT2 -+ device_create(rs_class, NULL, -+ MKDEV(TTY_MAJOR, 66), NULL, "ttyS2"); -+#endif -+#ifdef CONFIG_ETRAX_SERIAL_PORT3 -+ device_create(rs_class, NULL, -+ MKDEV(TTY_MAJOR, 67), NULL, "ttyS3"); -+#endif -+ - return 0; - } - -diff -Nur linux-2.6.36.orig/drivers/usb/Makefile linux-2.6.36/drivers/usb/Makefile ---- linux-2.6.36.orig/drivers/usb/Makefile 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/drivers/usb/Makefile 2010-11-15 17:57:18.000000000 +0100 -@@ -21,6 +21,7 @@ - obj-$(CONFIG_USB_R8A66597_HCD) += host/ - obj-$(CONFIG_USB_HWA_HCD) += host/ - obj-$(CONFIG_USB_ISP1760_HCD) += host/ -+obj-$(CONFIG_ETRAX_USB_HOST) += host/ - obj-$(CONFIG_USB_IMX21_HCD) += host/ - - obj-$(CONFIG_USB_C67X00_HCD) += c67x00/ -diff -Nur linux-2.6.36.orig/drivers/usb/host/Makefile linux-2.6.36/drivers/usb/host/Makefile ---- linux-2.6.36.orig/drivers/usb/host/Makefile 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/drivers/usb/host/Makefile 2010-11-15 17:57:18.000000000 +0100 -@@ -32,5 +32,6 @@ - obj-$(CONFIG_USB_R8A66597_HCD) += r8a66597-hcd.o - obj-$(CONFIG_USB_ISP1760_HCD) += isp1760.o - obj-$(CONFIG_USB_HWA_HCD) += hwa-hc.o -+obj-$(CONFIG_ETRAX_USB_HOST) += hc-crisv10.o - obj-$(CONFIG_USB_IMX21_HCD) += imx21-hcd.o - -diff -Nur linux-2.6.36.orig/drivers/usb/host/hc-cris-dbg.h linux-2.6.36/drivers/usb/host/hc-cris-dbg.h ---- linux-2.6.36.orig/drivers/usb/host/hc-cris-dbg.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.36/drivers/usb/host/hc-cris-dbg.h 2010-11-15 17:57:17.000000000 +0100 -@@ -0,0 +1,146 @@ -+ -+/* macros for debug output */ -+ -+#define warn(fmt, args...) \ -+ printk(KERN_INFO "crisv10 warn: ");printk(fmt, ## args) -+ -+#define hcd_dbg(hcd, fmt, args...) \ -+ dev_info(hcd->self.controller, fmt, ## args) -+#define hcd_err(hcd, fmt, args...) \ -+ dev_err(hcd->self.controller, fmt, ## args) -+#define hcd_info(hcd, fmt, args...) \ -+ dev_info(hcd->self.controller, fmt, ## args) -+#define hcd_warn(hcd, fmt, args...) \ -+ dev_warn(hcd->self.controller, fmt, ## args) -+ -+/* -+#define devdrv_dbg(fmt, args...) \ -+ printk(KERN_INFO "usb_devdrv dbg: ");printk(fmt, ## args) -+*/ -+#define devdrv_dbg(fmt, args...) {} -+ -+#define devdrv_err(fmt, args...) \ -+ printk(KERN_ERR "usb_devdrv error: ");printk(fmt, ## args) -+#define devdrv_info(fmt, args...) \ -+ printk(KERN_INFO "usb_devdrv: ");printk(fmt, ## args) -+ -+#define irq_dbg(fmt, args...) \ -+ printk(KERN_INFO "crisv10_irq dbg: ");printk(fmt, ## args) -+#define irq_err(fmt, args...) \ -+ printk(KERN_ERR "crisv10_irq error: ");printk(fmt, ## args) -+#define irq_warn(fmt, args...) \ -+ printk(KERN_INFO "crisv10_irq warn: ");printk(fmt, ## args) -+#define irq_info(fmt, args...) \ -+ printk(KERN_INFO "crisv10_hcd: ");printk(fmt, ## args) -+ -+/* -+#define rh_dbg(fmt, args...) \ -+ printk(KERN_DEBUG "crisv10_rh dbg: ");printk(fmt, ## args) -+*/ -+#define rh_dbg(fmt, args...) {} -+ -+#define rh_err(fmt, args...) \ -+ printk(KERN_ERR "crisv10_rh error: ");printk(fmt, ## args) -+#define rh_warn(fmt, args...) \ -+ printk(KERN_INFO "crisv10_rh warning: ");printk(fmt, ## args) -+#define rh_info(fmt, args...) \ -+ printk(KERN_INFO "crisv10_rh: ");printk(fmt, ## args) -+ -+/* -+#define tc_dbg(fmt, args...) \ -+ printk(KERN_INFO "crisv10_tc dbg: ");printk(fmt, ## args) -+*/ -+#define tc_dbg(fmt, args...) {while(0){}} -+ -+#define tc_err(fmt, args...) \ -+ printk(KERN_ERR "crisv10_tc error: ");printk(fmt, ## args) -+/* -+#define tc_warn(fmt, args...) \ -+ printk(KERN_INFO "crisv10_tc warning: ");printk(fmt, ## args) -+*/ -+#define tc_warn(fmt, args...) {while(0){}} -+ -+#define tc_info(fmt, args...) \ -+ printk(KERN_INFO "crisv10_tc: ");printk(fmt, ## args) -+ -+ -+/* Debug print-outs for various traffic types */ -+ -+#define intr_warn(fmt, args...) \ -+ printk(KERN_INFO "crisv10_intr warning: ");printk(fmt, ## args) -+ -+#define intr_dbg(fmt, args...) \ -+ printk(KERN_DEBUG "crisv10_intr dbg: ");printk(fmt, ## args) -+/* -+#define intr_dbg(fmt, args...) {while(0){}} -+*/ -+ -+ -+#define isoc_err(fmt, args...) \ -+ printk(KERN_ERR "crisv10_isoc error: ");printk(fmt, ## args) -+/* -+#define isoc_warn(fmt, args...) \ -+ printk(KERN_INFO "crisv10_isoc warning: ");printk(fmt, ## args) -+*/ -+#define isoc_warn(fmt, args...) {while(0){}} -+ -+/* -+#define isoc_dbg(fmt, args...) \ -+ printk(KERN_INFO "crisv10_isoc dbg: ");printk(fmt, ## args) -+*/ -+#define isoc_dbg(fmt, args...) {while(0){}} -+ -+/* -+#define timer_warn(fmt, args...) \ -+ printk(KERN_INFO "crisv10_timer warning: ");printk(fmt, ## args) -+*/ -+#define timer_warn(fmt, args...) {while(0){}} -+ -+/* -+#define timer_dbg(fmt, args...) \ -+ printk(KERN_INFO "crisv10_timer dbg: ");printk(fmt, ## args) -+*/ -+#define timer_dbg(fmt, args...) {while(0){}} -+ -+ -+/* Debug printouts for events related to late finishing of URBs */ -+ -+#define late_dbg(fmt, args...) \ -+ printk(KERN_INFO "crisv10_late dbg: ");printk(fmt, ## args) -+/* -+#define late_dbg(fmt, args...) {while(0){}} -+*/ -+ -+#define late_warn(fmt, args...) \ -+ printk(KERN_INFO "crisv10_late warning: ");printk(fmt, ## args) -+/* -+#define errno_dbg(fmt, args...) \ -+ printk(KERN_INFO "crisv10_errno dbg: ");printk(fmt, ## args) -+*/ -+#define errno_dbg(fmt, args...) {while(0){}} -+ -+ -+#define dma_dbg(fmt, args...) \ -+ printk(KERN_INFO "crisv10_dma dbg: ");printk(fmt, ## args) -+#define dma_err(fmt, args...) \ -+ printk(KERN_ERR "crisv10_dma error: ");printk(fmt, ## args) -+#define dma_warn(fmt, args...) \ -+ printk(KERN_INFO "crisv10_dma warning: ");printk(fmt, ## args) -+#define dma_info(fmt, args...) \ -+ printk(KERN_INFO "crisv10_dma: ");printk(fmt, ## args) -+ -+ -+ -+#define str_dir(pipe) \ -+ (usb_pipeout(pipe) ? "out" : "in") -+#define str_type(pipe) \ -+ ({ \ -+ char *s = "?"; \ -+ switch (usb_pipetype(pipe)) { \ -+ case PIPE_ISOCHRONOUS: s = "iso"; break; \ -+ case PIPE_INTERRUPT: s = "intr"; break; \ -+ case PIPE_CONTROL: s = "ctrl"; break; \ -+ case PIPE_BULK: s = "bulk"; break; \ -+ }; \ -+ s; \ -+ }) -diff -Nur linux-2.6.36.orig/drivers/usb/host/hc-crisv10.c linux-2.6.36/drivers/usb/host/hc-crisv10.c ---- linux-2.6.36.orig/drivers/usb/host/hc-crisv10.c 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.36/drivers/usb/host/hc-crisv10.c 2010-11-15 17:57:18.000000000 +0100 -@@ -0,0 +1,4801 @@ -+/* -+ * -+ * ETRAX 100LX USB Host Controller Driver -+ * -+ * Copyright (C) 2005, 2006 Axis Communications AB -+ * -+ * Author: Konrad Eriksson -+ * -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+#include -+#include -+ -+#include "hc-crisv10.h" -+#include "hc-cris-dbg.h" -+ -+ -+/***************************************************************************/ -+/***************************************************************************/ -+/* Host Controller settings */ -+/***************************************************************************/ -+/***************************************************************************/ -+ -+#define VERSION "1.00 hinko.4" -+#define COPYRIGHT "(c) 2005, 2006 Axis Communications AB" -+#define DESCRIPTION "ETRAX 100LX USB Host Controller" -+ -+#define ETRAX_USB_HC_IRQ USB_HC_IRQ_NBR -+#define ETRAX_USB_RX_IRQ USB_DMA_RX_IRQ_NBR -+#define ETRAX_USB_TX_IRQ USB_DMA_TX_IRQ_NBR -+ -+/* Number of physical ports in Etrax 100LX */ -+#define USB_ROOT_HUB_PORTS 2 -+ -+const char hc_name[] = "hc-crisv10"; -+const char product_desc[] = DESCRIPTION; -+ -+/* The number of epids is, among other things, used for pre-allocating -+ ctrl, bulk and isoc EP descriptors (one for each epid). -+ Assumed to be > 1 when initiating the DMA lists. */ -+#define NBR_OF_EPIDS 32 -+ -+/* Support interrupt traffic intervals up to 128 ms. */ -+#define MAX_INTR_INTERVAL 128 -+ -+/* If periodic traffic (intr or isoc) is to be used, then one entry in the EP -+ table must be "invalid". By this we mean that we shouldn't care about epid -+ attentions for this epid, or at least handle them differently from epid -+ attentions for "valid" epids. This define determines which one to use -+ (don't change it). */ -+#define INVALID_EPID 31 -+/* A special epid for the bulk dummys. */ -+#define DUMMY_EPID 30 -+ -+/* Module settings */ -+ -+MODULE_DESCRIPTION(DESCRIPTION); -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Konrad Eriksson "); -+ -+ -+/* Module parameters */ -+ -+/* 0 = No ports enabled -+ 1 = Only port 1 enabled (on board ethernet on devboard) -+ 2 = Only port 2 enabled (external connector on devboard) -+ 3 = Both ports enabled -+*/ -+static unsigned int ports = 3; -+module_param(ports, uint, S_IRUGO); -+MODULE_PARM_DESC(ports, "Bitmask indicating USB ports to use"); -+ -+ -+/***************************************************************************/ -+/***************************************************************************/ -+/* Shared global variables for this module */ -+/***************************************************************************/ -+/***************************************************************************/ -+ -+/* EP descriptor lists for non period transfers. Must be 32-bit aligned. */ -+static volatile struct USB_EP_Desc TxBulkEPList[NBR_OF_EPIDS] __attribute__ ((aligned (4))); -+ -+static volatile struct USB_EP_Desc TxCtrlEPList[NBR_OF_EPIDS] __attribute__ ((aligned (4))); -+ -+/* EP descriptor lists for period transfers. Must be 32-bit aligned. */ -+static volatile struct USB_EP_Desc TxIntrEPList[MAX_INTR_INTERVAL] __attribute__ ((aligned (4))); -+static volatile struct USB_SB_Desc TxIntrSB_zout __attribute__ ((aligned (4))); -+ -+static volatile struct USB_EP_Desc TxIsocEPList[NBR_OF_EPIDS] __attribute__ ((aligned (4))); -+static volatile struct USB_SB_Desc TxIsocSB_zout __attribute__ ((aligned (4))); -+ -+//static volatile struct USB_SB_Desc TxIsocSBList[NBR_OF_EPIDS] __attribute__ ((aligned (4))); -+ -+/* After each enabled bulk EP IN we put two disabled EP descriptors with the eol flag set, -+ causing the DMA to stop the DMA channel. The first of these two has the intr flag set, which -+ gives us a dma8_sub0_descr interrupt. When we receive this, we advance the DMA one step in the -+ EP list and then restart the bulk channel, thus forcing a switch between bulk EP descriptors -+ in each frame. */ -+static volatile struct USB_EP_Desc TxBulkDummyEPList[NBR_OF_EPIDS][2] __attribute__ ((aligned (4))); -+ -+/* List of URB pointers, where each points to the active URB for a epid. -+ For Bulk, Ctrl and Intr this means which URB that currently is added to -+ DMA lists (Isoc URBs are all directly added to DMA lists). As soon as -+ URB has completed is the queue examined and the first URB in queue is -+ removed and moved to the activeUrbList while its state change to STARTED and -+ its transfer(s) gets added to DMA list (exception Isoc where URBs enter -+ state STARTED directly and added transfers added to DMA lists). */ -+static struct urb *activeUrbList[NBR_OF_EPIDS]; -+ -+/* Additional software state info for each epid */ -+static struct etrax_epid epid_state[NBR_OF_EPIDS]; -+ -+/* Timer handles for bulk traffic timer used to avoid DMA bug where DMA stops -+ even if there is new data waiting to be processed */ -+static struct timer_list bulk_start_timer = TIMER_INITIALIZER(NULL, 0, 0); -+static struct timer_list bulk_eot_timer = TIMER_INITIALIZER(NULL, 0, 0); -+ -+/* We want the start timer to expire before the eot timer, because the former -+ might start traffic, thus making it unnecessary for the latter to time -+ out. */ -+#define BULK_START_TIMER_INTERVAL (HZ/50) /* 20 ms */ -+#define BULK_EOT_TIMER_INTERVAL (HZ/16) /* 60 ms */ -+ -+/* Delay before a URB completion happen when it's scheduled to be delayed */ -+#define LATER_TIMER_DELAY (HZ/50) /* 20 ms */ -+ -+/* Simplifying macros for checking software state info of a epid */ -+/* ----------------------------------------------------------------------- */ -+#define epid_inuse(epid) epid_state[epid].inuse -+#define epid_out_traffic(epid) epid_state[epid].out_traffic -+#define epid_isoc(epid) (epid_state[epid].type == PIPE_ISOCHRONOUS ? 1 : 0) -+#define epid_intr(epid) (epid_state[epid].type == PIPE_INTERRUPT ? 1 : 0) -+ -+ -+/***************************************************************************/ -+/***************************************************************************/ -+/* DEBUG FUNCTIONS */ -+/***************************************************************************/ -+/***************************************************************************/ -+/* Note that these functions are always available in their "__" variants, -+ for use in error situations. The "__" missing variants are controlled by -+ the USB_DEBUG_DESC/USB_DEBUG_URB macros. */ -+static void __dump_urb(struct urb* purb) -+{ -+ struct crisv10_urb_priv *urb_priv = purb->hcpriv; -+ int urb_num = -1; -+ if(urb_priv) { -+ urb_num = urb_priv->urb_num; -+ } -+ printk("\nURB:0x%x[%d]\n", (unsigned int)purb, urb_num); -+ printk("dev :0x%08lx\n", (unsigned long)purb->dev); -+ printk("pipe :0x%08x\n", purb->pipe); -+ printk("status :%d\n", purb->status); -+ printk("transfer_flags :0x%08x\n", purb->transfer_flags); -+ printk("transfer_buffer :0x%08lx\n", (unsigned long)purb->transfer_buffer); -+ printk("transfer_buffer_length:%d\n", purb->transfer_buffer_length); -+ printk("actual_length :%d\n", purb->actual_length); -+ printk("setup_packet :0x%08lx\n", (unsigned long)purb->setup_packet); -+ printk("start_frame :%d\n", purb->start_frame); -+ printk("number_of_packets :%d\n", purb->number_of_packets); -+ printk("interval :%d\n", purb->interval); -+ printk("error_count :%d\n", purb->error_count); -+ printk("context :0x%08lx\n", (unsigned long)purb->context); -+ printk("complete :0x%08lx\n\n", (unsigned long)purb->complete); -+} -+ -+static void __dump_in_desc(volatile struct USB_IN_Desc *in) -+{ -+ printk("\nUSB_IN_Desc at 0x%08lx\n", (unsigned long)in); -+ printk(" sw_len : 0x%04x (%d)\n", in->sw_len, in->sw_len); -+ printk(" command : 0x%04x\n", in->command); -+ printk(" next : 0x%08lx\n", in->next); -+ printk(" buf : 0x%08lx\n", in->buf); -+ printk(" hw_len : 0x%04x (%d)\n", in->hw_len, in->hw_len); -+ printk(" status : 0x%04x\n\n", in->status); -+} -+ -+static void __dump_sb_desc(volatile struct USB_SB_Desc *sb) -+{ -+ char tt = (sb->command & 0x30) >> 4; -+ char *tt_string; -+ -+ switch (tt) { -+ case 0: -+ tt_string = "zout"; -+ break; -+ case 1: -+ tt_string = "in"; -+ break; -+ case 2: -+ tt_string = "out"; -+ break; -+ case 3: -+ tt_string = "setup"; -+ break; -+ default: -+ tt_string = "unknown (weird)"; -+ } -+ -+ printk(" USB_SB_Desc at 0x%08lx ", (unsigned long)sb); -+ printk(" command:0x%04x (", sb->command); -+ printk("rem:%d ", (sb->command & 0x3f00) >> 8); -+ printk("full:%d ", (sb->command & 0x40) >> 6); -+ printk("tt:%d(%s) ", tt, tt_string); -+ printk("intr:%d ", (sb->command & 0x8) >> 3); -+ printk("eot:%d ", (sb->command & 0x2) >> 1); -+ printk("eol:%d)", sb->command & 0x1); -+ printk(" sw_len:0x%04x(%d)", sb->sw_len, sb->sw_len); -+ printk(" next:0x%08lx", sb->next); -+ printk(" buf:0x%08lx\n", sb->buf); -+} -+ -+ -+static void __dump_ep_desc(volatile struct USB_EP_Desc *ep) -+{ -+ printk("USB_EP_Desc at 0x%08lx ", (unsigned long)ep); -+ printk(" command:0x%04x (", ep->command); -+ printk("ep_id:%d ", (ep->command & 0x1f00) >> 8); -+ printk("enable:%d ", (ep->command & 0x10) >> 4); -+ printk("intr:%d ", (ep->command & 0x8) >> 3); -+ printk("eof:%d ", (ep->command & 0x2) >> 1); -+ printk("eol:%d)", ep->command & 0x1); -+ printk(" hw_len:0x%04x(%d)", ep->hw_len, ep->hw_len); -+ printk(" next:0x%08lx", ep->next); -+ printk(" sub:0x%08lx\n", ep->sub); -+} -+ -+static inline void __dump_ep_list(int pipe_type) -+{ -+ volatile struct USB_EP_Desc *ep; -+ volatile struct USB_EP_Desc *first_ep; -+ volatile struct USB_SB_Desc *sb; -+ -+ switch (pipe_type) -+ { -+ case PIPE_BULK: -+ first_ep = &TxBulkEPList[0]; -+ break; -+ case PIPE_CONTROL: -+ first_ep = &TxCtrlEPList[0]; -+ break; -+ case PIPE_INTERRUPT: -+ first_ep = &TxIntrEPList[0]; -+ break; -+ case PIPE_ISOCHRONOUS: -+ first_ep = &TxIsocEPList[0]; -+ break; -+ default: -+ warn("Cannot dump unknown traffic type"); -+ return; -+ } -+ ep = first_ep; -+ -+ printk("\n\nDumping EP list...\n\n"); -+ -+ do { -+ __dump_ep_desc(ep); -+ /* Cannot phys_to_virt on 0 as it turns into 80000000, which is != 0. */ -+ sb = ep->sub ? phys_to_virt(ep->sub) : 0; -+ while (sb) { -+ __dump_sb_desc(sb); -+ sb = sb->next ? phys_to_virt(sb->next) : 0; -+ } -+ ep = (volatile struct USB_EP_Desc *)(phys_to_virt(ep->next)); -+ -+ } while (ep != first_ep); -+} -+ -+static inline void __dump_ept_data(int epid) -+{ -+ unsigned long flags; -+ __u32 r_usb_ept_data; -+ -+ if (epid < 0 || epid > 31) { -+ printk("Cannot dump ept data for invalid epid %d\n", epid); -+ return; -+ } -+ -+ local_irq_save(flags); -+ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid); -+ nop(); -+ r_usb_ept_data = *R_USB_EPT_DATA; -+ local_irq_restore(flags); -+ -+ printk(" R_USB_EPT_DATA = 0x%x for epid %d :\n", r_usb_ept_data, epid); -+ if (r_usb_ept_data == 0) { -+ /* No need for more detailed printing. */ -+ return; -+ } -+ printk(" valid : %d\n", (r_usb_ept_data & 0x80000000) >> 31); -+ printk(" hold : %d\n", (r_usb_ept_data & 0x40000000) >> 30); -+ printk(" error_count_in : %d\n", (r_usb_ept_data & 0x30000000) >> 28); -+ printk(" t_in : %d\n", (r_usb_ept_data & 0x08000000) >> 27); -+ printk(" low_speed : %d\n", (r_usb_ept_data & 0x04000000) >> 26); -+ printk(" port : %d\n", (r_usb_ept_data & 0x03000000) >> 24); -+ printk(" error_code : %d\n", (r_usb_ept_data & 0x00c00000) >> 22); -+ printk(" t_out : %d\n", (r_usb_ept_data & 0x00200000) >> 21); -+ printk(" error_count_out : %d\n", (r_usb_ept_data & 0x00180000) >> 19); -+ printk(" max_len : %d\n", (r_usb_ept_data & 0x0003f800) >> 11); -+ printk(" ep : %d\n", (r_usb_ept_data & 0x00000780) >> 7); -+ printk(" dev : %d\n", (r_usb_ept_data & 0x0000003f)); -+} -+ -+static inline void __dump_ept_data_iso(int epid) -+{ -+ unsigned long flags; -+ __u32 ept_data; -+ -+ if (epid < 0 || epid > 31) { -+ printk("Cannot dump ept data for invalid epid %d\n", epid); -+ return; -+ } -+ -+ local_irq_save(flags); -+ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid); -+ nop(); -+ ept_data = *R_USB_EPT_DATA_ISO; -+ local_irq_restore(flags); -+ -+ printk(" R_USB_EPT_DATA = 0x%x for epid %d :\n", ept_data, epid); -+ if (ept_data == 0) { -+ /* No need for more detailed printing. */ -+ return; -+ } -+ printk(" valid : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, valid, -+ ept_data)); -+ printk(" port : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, port, -+ ept_data)); -+ printk(" error_code : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, error_code, -+ ept_data)); -+ printk(" max_len : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, max_len, -+ ept_data)); -+ printk(" ep : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, ep, -+ ept_data)); -+ printk(" dev : %d\n", IO_EXTRACT(R_USB_EPT_DATA_ISO, dev, -+ ept_data)); -+} -+ -+static inline void __dump_ept_data_list(void) -+{ -+ int i; -+ -+ printk("Dumping the whole R_USB_EPT_DATA list\n"); -+ -+ for (i = 0; i < 32; i++) { -+ __dump_ept_data(i); -+ } -+} -+ -+static void debug_epid(int epid) { -+ int i; -+ -+ if(epid_isoc(epid)) { -+ __dump_ept_data_iso(epid); -+ } else { -+ __dump_ept_data(epid); -+ } -+ -+ printk("Bulk:\n"); -+ for(i = 0; i < 32; i++) { -+ if(IO_EXTRACT(USB_EP_command, epid, TxBulkEPList[i].command) == -+ epid) { -+ printk("%d: ", i); __dump_ep_desc(&(TxBulkEPList[i])); -+ } -+ } -+ -+ printk("Ctrl:\n"); -+ for(i = 0; i < 32; i++) { -+ if(IO_EXTRACT(USB_EP_command, epid, TxCtrlEPList[i].command) == -+ epid) { -+ printk("%d: ", i); __dump_ep_desc(&(TxCtrlEPList[i])); -+ } -+ } -+ -+ printk("Intr:\n"); -+ for(i = 0; i < MAX_INTR_INTERVAL; i++) { -+ if(IO_EXTRACT(USB_EP_command, epid, TxIntrEPList[i].command) == -+ epid) { -+ printk("%d: ", i); __dump_ep_desc(&(TxIntrEPList[i])); -+ } -+ } -+ -+ printk("Isoc:\n"); -+ for(i = 0; i < 32; i++) { -+ if(IO_EXTRACT(USB_EP_command, epid, TxIsocEPList[i].command) == -+ epid) { -+ printk("%d: ", i); __dump_ep_desc(&(TxIsocEPList[i])); -+ } -+ } -+ -+ __dump_ept_data_list(); -+ __dump_ep_list(PIPE_INTERRUPT); -+ printk("\n\n"); -+} -+ -+ -+ -+char* hcd_status_to_str(__u8 bUsbStatus) { -+ static char hcd_status_str[128]; -+ hcd_status_str[0] = '\0'; -+ if(bUsbStatus & IO_STATE(R_USB_STATUS, ourun, yes)) { -+ strcat(hcd_status_str, "ourun "); -+ } -+ if(bUsbStatus & IO_STATE(R_USB_STATUS, perror, yes)) { -+ strcat(hcd_status_str, "perror "); -+ } -+ if(bUsbStatus & IO_STATE(R_USB_STATUS, device_mode, yes)) { -+ strcat(hcd_status_str, "device_mode "); -+ } -+ if(bUsbStatus & IO_STATE(R_USB_STATUS, host_mode, yes)) { -+ strcat(hcd_status_str, "host_mode "); -+ } -+ if(bUsbStatus & IO_STATE(R_USB_STATUS, started, yes)) { -+ strcat(hcd_status_str, "started "); -+ } -+ if(bUsbStatus & IO_STATE(R_USB_STATUS, running, yes)) { -+ strcat(hcd_status_str, "running "); -+ } -+ return hcd_status_str; -+} -+ -+ -+char* sblist_to_str(struct USB_SB_Desc* sb_desc) { -+ static char sblist_to_str_buff[128]; -+ char tmp[32], tmp2[32]; -+ sblist_to_str_buff[0] = '\0'; -+ while(sb_desc != NULL) { -+ switch(IO_EXTRACT(USB_SB_command, tt, sb_desc->command)) { -+ case 0: sprintf(tmp, "zout"); break; -+ case 1: sprintf(tmp, "in"); break; -+ case 2: sprintf(tmp, "out"); break; -+ case 3: sprintf(tmp, "setup"); break; -+ } -+ sprintf(tmp2, "(%s %d)", tmp, sb_desc->sw_len); -+ strcat(sblist_to_str_buff, tmp2); -+ if(sb_desc->next != 0) { -+ sb_desc = phys_to_virt(sb_desc->next); -+ } else { -+ sb_desc = NULL; -+ } -+ } -+ return sblist_to_str_buff; -+} -+ -+char* port_status_to_str(__u16 wPortStatus) { -+ static char port_status_str[128]; -+ port_status_str[0] = '\0'; -+ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, connected, yes)) { -+ strcat(port_status_str, "connected "); -+ } -+ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, enabled, yes)) { -+ strcat(port_status_str, "enabled "); -+ } -+ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, suspended, yes)) { -+ strcat(port_status_str, "suspended "); -+ } -+ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, reset, yes)) { -+ strcat(port_status_str, "reset "); -+ } -+ if(wPortStatus & IO_STATE(R_USB_RH_PORT_STATUS_1, speed, full)) { -+ strcat(port_status_str, "full-speed "); -+ } else { -+ strcat(port_status_str, "low-speed "); -+ } -+ return port_status_str; -+} -+ -+ -+char* endpoint_to_str(struct usb_endpoint_descriptor *ed) { -+ static char endpoint_to_str_buff[128]; -+ char tmp[32]; -+ int epnum = ed->bEndpointAddress & 0x0F; -+ int dir = ed->bEndpointAddress & 0x80; -+ int type = ed->bmAttributes & 0x03; -+ endpoint_to_str_buff[0] = '\0'; -+ sprintf(endpoint_to_str_buff, "ep:%d ", epnum); -+ switch(type) { -+ case 0: -+ sprintf(tmp, " ctrl"); -+ break; -+ case 1: -+ sprintf(tmp, " isoc"); -+ break; -+ case 2: -+ sprintf(tmp, " bulk"); -+ break; -+ case 3: -+ sprintf(tmp, " intr"); -+ break; -+ } -+ strcat(endpoint_to_str_buff, tmp); -+ if(dir) { -+ sprintf(tmp, " in"); -+ } else { -+ sprintf(tmp, " out"); -+ } -+ strcat(endpoint_to_str_buff, tmp); -+ -+ return endpoint_to_str_buff; -+} -+ -+/* Debug helper functions for Transfer Controller */ -+char* pipe_to_str(unsigned int pipe) { -+ static char pipe_to_str_buff[128]; -+ char tmp[64]; -+ sprintf(pipe_to_str_buff, "dir:%s", str_dir(pipe)); -+ sprintf(tmp, " type:%s", str_type(pipe)); -+ strcat(pipe_to_str_buff, tmp); -+ -+ sprintf(tmp, " dev:%d", usb_pipedevice(pipe)); -+ strcat(pipe_to_str_buff, tmp); -+ sprintf(tmp, " ep:%d", usb_pipeendpoint(pipe)); -+ strcat(pipe_to_str_buff, tmp); -+ return pipe_to_str_buff; -+} -+ -+ -+#define USB_DEBUG_DESC 1 -+ -+#ifdef USB_DEBUG_DESC -+#define dump_in_desc(x) __dump_in_desc(x) -+#define dump_sb_desc(...) __dump_sb_desc(...) -+#define dump_ep_desc(x) __dump_ep_desc(x) -+#define dump_ept_data(x) __dump_ept_data(x) -+#else -+#define dump_in_desc(...) do {} while (0) -+#define dump_sb_desc(...) do {} while (0) -+#define dump_ep_desc(...) do {} while (0) -+#endif -+ -+ -+/* Uncomment this to enable massive function call trace -+ #define USB_DEBUG_TRACE */ -+//#define USB_DEBUG_TRACE 1 -+ -+#ifdef USB_DEBUG_TRACE -+#define DBFENTER (printk(": Entering: %s\n", __FUNCTION__)) -+#define DBFEXIT (printk(": Exiting: %s\n", __FUNCTION__)) -+#else -+#define DBFENTER do {} while (0) -+#define DBFEXIT do {} while (0) -+#endif -+ -+#define CHECK_ALIGN(x) if (((__u32)(x)) & 0x00000003) \ -+{panic("Alignment check (DWORD) failed at %s:%s:%d\n", __FILE__, __FUNCTION__, __LINE__);} -+ -+/* Most helpful debugging aid */ -+#define ASSERT(expr) ((void) ((expr) ? 0 : (err("assert failed at: %s %d",__FUNCTION__, __LINE__)))) -+ -+ -+/***************************************************************************/ -+/***************************************************************************/ -+/* Forward declarations */ -+/***************************************************************************/ -+/***************************************************************************/ -+void crisv10_hcd_epid_attn_irq(struct crisv10_irq_reg *reg); -+void crisv10_hcd_port_status_irq(struct crisv10_irq_reg *reg); -+void crisv10_hcd_ctl_status_irq(struct crisv10_irq_reg *reg); -+void crisv10_hcd_isoc_eof_irq(struct crisv10_irq_reg *reg); -+ -+void rh_port_status_change(__u16[]); -+int rh_clear_port_feature(__u8, __u16); -+int rh_set_port_feature(__u8, __u16); -+static void rh_disable_port(unsigned int port); -+ -+static void check_finished_bulk_tx_epids(struct usb_hcd *hcd, -+ int timer); -+ -+//static int tc_setup_epid(struct usb_host_endpoint *ep, struct urb *urb, -+// int mem_flags); -+static int tc_setup_epid(struct urb *urb, int mem_flags); -+static void tc_free_epid(struct usb_host_endpoint *ep); -+static int tc_allocate_epid(void); -+static void tc_finish_urb(struct usb_hcd *hcd, struct urb *urb, int status); -+static void tc_finish_urb_later(struct usb_hcd *hcd, struct urb *urb, -+ int status); -+ -+static int urb_priv_create(struct usb_hcd *hcd, struct urb *urb, int epid, -+ int mem_flags); -+static void urb_priv_free(struct usb_hcd *hcd, struct urb *urb); -+ -+static inline struct urb *urb_list_first(int epid); -+static inline void urb_list_add(struct urb *urb, int epid, -+ int mem_flags); -+static inline urb_entry_t *urb_list_entry(struct urb *urb, int epid); -+static inline void urb_list_del(struct urb *urb, int epid); -+static inline void urb_list_move_last(struct urb *urb, int epid); -+static inline struct urb *urb_list_next(struct urb *urb, int epid); -+ -+int create_sb_for_urb(struct urb *urb, int mem_flags); -+int init_intr_urb(struct urb *urb, int mem_flags); -+ -+static inline void etrax_epid_set(__u8 index, __u32 data); -+static inline void etrax_epid_clear_error(__u8 index); -+static inline void etrax_epid_set_toggle(__u8 index, __u8 dirout, -+ __u8 toggle); -+static inline __u8 etrax_epid_get_toggle(__u8 index, __u8 dirout); -+static inline __u32 etrax_epid_get(__u8 index); -+ -+/* We're accessing the same register position in Etrax so -+ when we do full access the internal difference doesn't matter */ -+#define etrax_epid_iso_set(index, data) etrax_epid_set(index, data) -+#define etrax_epid_iso_get(index) etrax_epid_get(index) -+ -+ -+//static void tc_dma_process_isoc_urb(struct urb *urb); -+static void tc_dma_process_queue(int epid); -+static void tc_dma_unlink_intr_urb(struct urb *urb); -+static irqreturn_t tc_dma_tx_interrupt(int irq, void *vhc); -+static irqreturn_t tc_dma_rx_interrupt(int irq, void *vhc); -+ -+static void tc_bulk_start_timer_func(unsigned long dummy); -+static void tc_bulk_eot_timer_func(unsigned long dummy); -+ -+ -+/*************************************************************/ -+/*************************************************************/ -+/* Host Controler Driver block */ -+/*************************************************************/ -+/*************************************************************/ -+ -+/* HCD operations */ -+static irqreturn_t crisv10_hcd_top_irq(int irq, void*); -+static int crisv10_hcd_reset(struct usb_hcd *); -+static int crisv10_hcd_start(struct usb_hcd *); -+static void crisv10_hcd_stop(struct usb_hcd *); -+#ifdef CONFIG_PM -+static int crisv10_hcd_suspend(struct device *, u32, u32); -+static int crisv10_hcd_resume(struct device *, u32); -+#endif /* CONFIG_PM */ -+static int crisv10_hcd_get_frame(struct usb_hcd *); -+ -+//static int tc_urb_enqueue(struct usb_hcd *, struct usb_host_endpoint *ep, struct urb *, gfp_t mem_flags); -+static int tc_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags); -+//static int tc_urb_dequeue(struct usb_hcd *, struct urb *); -+static int tc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status); -+static void tc_endpoint_disable(struct usb_hcd *, struct usb_host_endpoint *ep); -+ -+static int rh_status_data_request(struct usb_hcd *, char *); -+static int rh_control_request(struct usb_hcd *, u16, u16, u16, char*, u16); -+ -+#ifdef CONFIG_PM -+static int crisv10_hcd_hub_suspend(struct usb_hcd *); -+static int crisv10_hcd_hub_resume(struct usb_hcd *); -+#endif /* CONFIG_PM */ -+#ifdef CONFIG_USB_OTG -+static int crisv10_hcd_start_port_reset(struct usb_hcd *, unsigned); -+#endif /* CONFIG_USB_OTG */ -+ -+/* host controller driver interface */ -+static const struct hc_driver crisv10_hc_driver = -+ { -+ .description = hc_name, -+ .product_desc = product_desc, -+ .hcd_priv_size = sizeof(struct crisv10_hcd), -+ -+ /* Attaching IRQ handler manualy in probe() */ -+ /* .irq = crisv10_hcd_irq, */ -+ -+ .flags = HCD_USB11, -+ -+ /* called to init HCD and root hub */ -+ .reset = crisv10_hcd_reset, -+ .start = crisv10_hcd_start, -+ -+ /* cleanly make HCD stop writing memory and doing I/O */ -+ .stop = crisv10_hcd_stop, -+ -+ /* return current frame number */ -+ .get_frame_number = crisv10_hcd_get_frame, -+ -+ -+ /* Manage i/o requests via the Transfer Controller */ -+ .urb_enqueue = tc_urb_enqueue, -+ .urb_dequeue = tc_urb_dequeue, -+ -+ /* hw synch, freeing endpoint resources that urb_dequeue can't */ -+ .endpoint_disable = tc_endpoint_disable, -+ -+ -+ /* Root Hub support */ -+ .hub_status_data = rh_status_data_request, -+ .hub_control = rh_control_request, -+#ifdef CONFIG_PM -+ .hub_suspend = rh_suspend_request, -+ .hub_resume = rh_resume_request, -+#endif /* CONFIG_PM */ -+#ifdef CONFIG_USB_OTG -+ .start_port_reset = crisv10_hcd_start_port_reset, -+#endif /* CONFIG_USB_OTG */ -+ }; -+ -+ -+/* -+ * conversion between pointers to a hcd and the corresponding -+ * crisv10_hcd -+ */ -+ -+static inline struct crisv10_hcd *hcd_to_crisv10_hcd(struct usb_hcd *hcd) -+{ -+ return (struct crisv10_hcd *) hcd->hcd_priv; -+} -+ -+static inline struct usb_hcd *crisv10_hcd_to_hcd(struct crisv10_hcd *hcd) -+{ -+ return container_of((void *) hcd, struct usb_hcd, hcd_priv); -+} -+ -+/* check if specified port is in use */ -+static inline int port_in_use(unsigned int port) -+{ -+ return ports & (1 << port); -+} -+ -+/* number of ports in use */ -+static inline unsigned int num_ports(void) -+{ -+ unsigned int i, num = 0; -+ for (i = 0; i < USB_ROOT_HUB_PORTS; i++) -+ if (port_in_use(i)) -+ num++; -+ return num; -+} -+ -+/* map hub port number to the port number used internally by the HC */ -+static inline unsigned int map_port(unsigned int port) -+{ -+ unsigned int i, num = 0; -+ for (i = 0; i < USB_ROOT_HUB_PORTS; i++) -+ if (port_in_use(i)) -+ if (++num == port) -+ return i; -+ return -1; -+} -+ -+/* size of descriptors in slab cache */ -+#ifndef MAX -+#define MAX(x, y) ((x) > (y) ? (x) : (y)) -+#endif -+ -+ -+/******************************************************************/ -+/* Hardware Interrupt functions */ -+/******************************************************************/ -+ -+/* Fast interrupt handler for HC */ -+static irqreturn_t crisv10_hcd_top_irq(int irq, void *vcd) -+{ -+ struct usb_hcd *hcd = vcd; -+ struct crisv10_irq_reg reg; -+ __u32 irq_mask; -+ unsigned long flags; -+ -+ DBFENTER; -+ -+ ASSERT(hcd != NULL); -+ reg.hcd = hcd; -+ -+ /* Turn of other interrupts while handling these sensitive cases */ -+ local_irq_save(flags); -+ -+ /* Read out which interrupts that are flaged */ -+ irq_mask = *R_USB_IRQ_MASK_READ; -+ reg.r_usb_irq_mask_read = irq_mask; -+ -+ /* Reading R_USB_STATUS clears the ctl_status interrupt. Note that -+ R_USB_STATUS must be read before R_USB_EPID_ATTN since reading the latter -+ clears the ourun and perror fields of R_USB_STATUS. */ -+ reg.r_usb_status = *R_USB_STATUS; -+ -+ /* Reading R_USB_EPID_ATTN clears the iso_eof, bulk_eot and epid_attn -+ interrupts. */ -+ reg.r_usb_epid_attn = *R_USB_EPID_ATTN; -+ -+ /* Reading R_USB_RH_PORT_STATUS_1 and R_USB_RH_PORT_STATUS_2 clears the -+ port_status interrupt. */ -+ reg.r_usb_rh_port_status_1 = *R_USB_RH_PORT_STATUS_1; -+ reg.r_usb_rh_port_status_2 = *R_USB_RH_PORT_STATUS_2; -+ -+ /* Reading R_USB_FM_NUMBER clears the sof interrupt. */ -+ /* Note: the lower 11 bits contain the actual frame number, sent with each -+ sof. */ -+ reg.r_usb_fm_number = *R_USB_FM_NUMBER; -+ -+ /* Interrupts are handled in order of priority. */ -+ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, port_status)) { -+ crisv10_hcd_port_status_irq(®); -+ } -+ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, epid_attn)) { -+ crisv10_hcd_epid_attn_irq(®); -+ } -+ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, ctl_status)) { -+ crisv10_hcd_ctl_status_irq(®); -+ } -+ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, iso_eof)) { -+ crisv10_hcd_isoc_eof_irq(®); -+ } -+ if (irq_mask & IO_MASK(R_USB_IRQ_MASK_READ, bulk_eot)) { -+ /* Update/restart the bulk start timer since obviously the channel is -+ running. */ -+ mod_timer(&bulk_start_timer, jiffies + BULK_START_TIMER_INTERVAL); -+ /* Update/restart the bulk eot timer since we just received an bulk eot -+ interrupt. */ -+ mod_timer(&bulk_eot_timer, jiffies + BULK_EOT_TIMER_INTERVAL); -+ -+ /* Check for finished bulk transfers on epids */ -+ check_finished_bulk_tx_epids(hcd, 0); -+ } -+ local_irq_restore(flags); -+ -+ DBFEXIT; -+ return IRQ_HANDLED; -+} -+ -+ -+void crisv10_hcd_epid_attn_irq(struct crisv10_irq_reg *reg) { -+ struct usb_hcd *hcd = reg->hcd; -+ struct crisv10_urb_priv *urb_priv; -+ int epid; -+ DBFENTER; -+ -+ for (epid = 0; epid < NBR_OF_EPIDS; epid++) { -+ if (test_bit(epid, (void *)®->r_usb_epid_attn)) { -+ struct urb *urb; -+ __u32 ept_data; -+ int error_code; -+ -+ if (epid == DUMMY_EPID || epid == INVALID_EPID) { -+ /* We definitely don't care about these ones. Besides, they are -+ always disabled, so any possible disabling caused by the -+ epid attention interrupt is irrelevant. */ -+ warn("Got epid_attn for INVALID_EPID or DUMMY_EPID (%d).", epid); -+ continue; -+ } -+ -+ if(!epid_inuse(epid)) { -+ irq_err("Epid attention on epid:%d that isn't in use\n", epid); -+ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status); -+ debug_epid(epid); -+ continue; -+ } -+ -+ /* Note that although there are separate R_USB_EPT_DATA and -+ R_USB_EPT_DATA_ISO registers, they are located at the same address and -+ are of the same size. In other words, this read should be ok for isoc -+ also. */ -+ ept_data = etrax_epid_get(epid); -+ error_code = IO_EXTRACT(R_USB_EPT_DATA, error_code, ept_data); -+ -+ /* Get the active URB for this epid. We blatantly assume -+ that only this URB could have caused the epid attention. */ -+ urb = activeUrbList[epid]; -+ if (urb == NULL) { -+ irq_err("Attention on epid:%d error:%d with no active URB.\n", -+ epid, error_code); -+ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status); -+ debug_epid(epid); -+ continue; -+ } -+ -+ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv; -+ ASSERT(urb_priv); -+ -+ /* Using IO_STATE_VALUE on R_USB_EPT_DATA should be ok for isoc also. */ -+ if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) { -+ -+ /* Isoc traffic doesn't have error_count_in/error_count_out. */ -+ if ((usb_pipetype(urb->pipe) != PIPE_ISOCHRONOUS) && -+ (IO_EXTRACT(R_USB_EPT_DATA, error_count_in, ept_data) == 3 || -+ IO_EXTRACT(R_USB_EPT_DATA, error_count_out, ept_data) == 3)) { -+ /* Check if URB allready is marked for late-finish, we can get -+ several 3rd error for Intr traffic when a device is unplugged */ -+ if(urb_priv->later_data == NULL) { -+ /* 3rd error. */ -+ irq_warn("3rd error for epid:%d (%s %s) URB:0x%x[%d]\n", epid, -+ str_dir(urb->pipe), str_type(urb->pipe), -+ (unsigned int)urb, urb_priv->urb_num); -+ -+ tc_finish_urb_later(hcd, urb, -EPROTO); -+ } -+ -+ } else if (reg->r_usb_status & IO_MASK(R_USB_STATUS, perror)) { -+ irq_warn("Perror for epid:%d\n", epid); -+ printk("FM_NUMBER: %d\n", reg->r_usb_fm_number & 0x7ff); -+ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status); -+ __dump_urb(urb); -+ debug_epid(epid); -+ -+ if (!(ept_data & IO_MASK(R_USB_EPT_DATA, valid))) { -+ /* invalid ep_id */ -+ panic("Perror because of invalid epid." -+ " Deconfigured too early?"); -+ } else { -+ /* past eof1, near eof, zout transfer, setup transfer */ -+ /* Dump the urb and the relevant EP descriptor. */ -+ panic("Something wrong with DMA descriptor contents." -+ " Too much traffic inserted?"); -+ } -+ } else if (reg->r_usb_status & IO_MASK(R_USB_STATUS, ourun)) { -+ /* buffer ourun */ -+ printk("FM_NUMBER: %d\n", reg->r_usb_fm_number & 0x7ff); -+ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status); -+ __dump_urb(urb); -+ debug_epid(epid); -+ -+ panic("Buffer overrun/underrun for epid:%d. DMA too busy?", epid); -+ } else { -+ irq_warn("Attention on epid:%d (%s %s) with no error code\n", epid, -+ str_dir(urb->pipe), str_type(urb->pipe)); -+ printk("R_USB_STATUS: 0x%x\n", reg->r_usb_status); -+ __dump_urb(urb); -+ debug_epid(epid); -+ } -+ -+ } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code, -+ stall)) { -+ /* Not really a protocol error, just says that the endpoint gave -+ a stall response. Note that error_code cannot be stall for isoc. */ -+ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { -+ panic("Isoc traffic cannot stall"); -+ } -+ -+ tc_dbg("Stall for epid:%d (%s %s) URB:0x%x\n", epid, -+ str_dir(urb->pipe), str_type(urb->pipe), (unsigned int)urb); -+ tc_finish_urb(hcd, urb, -EPIPE); -+ -+ } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code, -+ bus_error)) { -+ /* Two devices responded to a transaction request. Must be resolved -+ by software. FIXME: Reset ports? */ -+ panic("Bus error for epid %d." -+ " Two devices responded to transaction request\n", -+ epid); -+ -+ } else if (error_code == IO_STATE_VALUE(R_USB_EPT_DATA, error_code, -+ buffer_error)) { -+ /* DMA overrun or underrun. */ -+ irq_warn("Buffer overrun/underrun for epid:%d (%s %s)\n", epid, -+ str_dir(urb->pipe), str_type(urb->pipe)); -+ -+ /* It seems that error_code = buffer_error in -+ R_USB_EPT_DATA/R_USB_EPT_DATA_ISO and ourun = yes in R_USB_STATUS -+ are the same error. */ -+ tc_finish_urb(hcd, urb, -EPROTO); -+ } else { -+ irq_warn("Unknown attention on epid:%d (%s %s)\n", epid, -+ str_dir(urb->pipe), str_type(urb->pipe)); -+ dump_ept_data(epid); -+ } -+ } -+ } -+ DBFEXIT; -+} -+ -+void crisv10_hcd_port_status_irq(struct crisv10_irq_reg *reg) -+{ -+ __u16 port_reg[USB_ROOT_HUB_PORTS]; -+ DBFENTER; -+ port_reg[0] = reg->r_usb_rh_port_status_1; -+ port_reg[1] = reg->r_usb_rh_port_status_2; -+ rh_port_status_change(port_reg); -+ DBFEXIT; -+} -+ -+void crisv10_hcd_isoc_eof_irq(struct crisv10_irq_reg *reg) -+{ -+ int epid; -+ struct urb *urb; -+ struct crisv10_urb_priv *urb_priv; -+ -+ DBFENTER; -+ -+ for (epid = 0; epid < NBR_OF_EPIDS - 1; epid++) { -+ -+ /* Only check epids that are in use, is valid and has SB list */ -+ if (!epid_inuse(epid) || epid == INVALID_EPID || -+ TxIsocEPList[epid].sub == 0 || epid == DUMMY_EPID) { -+ /* Nothing here to see. */ -+ continue; -+ } -+ ASSERT(epid_isoc(epid)); -+ -+ /* Get the active URB for this epid (if any). */ -+ urb = activeUrbList[epid]; -+ if (urb == 0) { -+ isoc_warn("Ignoring NULL urb for epid:%d\n", epid); -+ continue; -+ } -+ if(!epid_out_traffic(epid)) { -+ /* Sanity check. */ -+ ASSERT(usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS); -+ -+ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv; -+ ASSERT(urb_priv); -+ -+ if (urb_priv->urb_state == NOT_STARTED) { -+ /* If ASAP is not set and urb->start_frame is the current frame, -+ start the transfer. */ -+ if (!(urb->transfer_flags & URB_ISO_ASAP) && -+ (urb->start_frame == (*R_USB_FM_NUMBER & 0x7ff))) { -+ /* EP should not be enabled if we're waiting for start_frame */ -+ ASSERT((TxIsocEPList[epid].command & -+ IO_STATE(USB_EP_command, enable, yes)) == 0); -+ -+ isoc_warn("Enabling isoc IN EP descr for epid %d\n", epid); -+ TxIsocEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes); -+ -+ /* This urb is now active. */ -+ urb_priv->urb_state = STARTED; -+ continue; -+ } -+ } -+ } -+ } -+ -+ DBFEXIT; -+} -+ -+void crisv10_hcd_ctl_status_irq(struct crisv10_irq_reg *reg) -+{ -+ struct crisv10_hcd* crisv10_hcd = hcd_to_crisv10_hcd(reg->hcd); -+ -+ DBFENTER; -+ ASSERT(crisv10_hcd); -+ -+ irq_dbg("ctr_status_irq, controller status: %s\n", -+ hcd_status_to_str(reg->r_usb_status)); -+ -+ /* FIXME: What should we do if we get ourun or perror? Dump the EP and SB -+ list for the corresponding epid? */ -+ if (reg->r_usb_status & IO_MASK(R_USB_STATUS, ourun)) { -+ panic("USB controller got ourun."); -+ } -+ if (reg->r_usb_status & IO_MASK(R_USB_STATUS, perror)) { -+ -+ /* Before, etrax_usb_do_intr_recover was called on this epid if it was -+ an interrupt pipe. I don't see how re-enabling all EP descriptors -+ will help if there was a programming error. */ -+ panic("USB controller got perror."); -+ } -+ -+ /* Keep track of USB Controller, if it's running or not */ -+ if(reg->r_usb_status & IO_STATE(R_USB_STATUS, running, yes)) { -+ crisv10_hcd->running = 1; -+ } else { -+ crisv10_hcd->running = 0; -+ } -+ -+ if (reg->r_usb_status & IO_MASK(R_USB_STATUS, device_mode)) { -+ /* We should never operate in device mode. */ -+ panic("USB controller in device mode."); -+ } -+ -+ /* Set the flag to avoid getting "Unlink after no-IRQ? Controller is probably -+ using the wrong IRQ" from hcd_unlink_urb() in drivers/usb/core/hcd.c */ -+ set_bit(HCD_FLAG_SAW_IRQ, ®->hcd->flags); -+ -+ DBFEXIT; -+} -+ -+ -+/******************************************************************/ -+/* Host Controller interface functions */ -+/******************************************************************/ -+ -+static inline void crisv10_ready_wait(void) { -+ volatile int timeout = 10000; -+ /* Check the busy bit of USB controller in Etrax */ -+ while((*R_USB_COMMAND & IO_MASK(R_USB_COMMAND, busy)) && -+ (timeout-- > 0)); -+ if(timeout == 0) { -+ warn("Timeout while waiting for USB controller to be idle\n"); -+ } -+} -+ -+/* reset host controller */ -+static int crisv10_hcd_reset(struct usb_hcd *hcd) -+{ -+ DBFENTER; -+ hcd_dbg(hcd, "reset\n"); -+ -+ -+ /* Reset the USB interface. */ -+ /* -+ *R_USB_COMMAND = -+ IO_STATE(R_USB_COMMAND, port_sel, nop) | -+ IO_STATE(R_USB_COMMAND, port_cmd, reset) | -+ IO_STATE(R_USB_COMMAND, ctrl_cmd, reset); -+ nop(); -+ */ -+ DBFEXIT; -+ return 0; -+} -+ -+/* start host controller */ -+static int crisv10_hcd_start(struct usb_hcd *hcd) -+{ -+ DBFENTER; -+ hcd_dbg(hcd, "start\n"); -+ -+ crisv10_ready_wait(); -+ -+ /* Start processing of USB traffic. */ -+ *R_USB_COMMAND = -+ IO_STATE(R_USB_COMMAND, port_sel, nop) | -+ IO_STATE(R_USB_COMMAND, port_cmd, reset) | -+ IO_STATE(R_USB_COMMAND, ctrl_cmd, host_run); -+ -+ nop(); -+ -+ hcd->state = HC_STATE_RUNNING; -+ -+ DBFEXIT; -+ return 0; -+} -+ -+/* stop host controller */ -+static void crisv10_hcd_stop(struct usb_hcd *hcd) -+{ -+ DBFENTER; -+ hcd_dbg(hcd, "stop\n"); -+ crisv10_hcd_reset(hcd); -+ DBFEXIT; -+} -+ -+/* return the current frame number */ -+static int crisv10_hcd_get_frame(struct usb_hcd *hcd) -+{ -+ DBFENTER; -+ DBFEXIT; -+ return (*R_USB_FM_NUMBER & 0x7ff); -+} -+ -+#ifdef CONFIG_USB_OTG -+ -+static int crisv10_hcd_start_port_reset(struct usb_hcd *hcd, unsigned port) -+{ -+ return 0; /* no-op for now */ -+} -+ -+#endif /* CONFIG_USB_OTG */ -+ -+ -+/******************************************************************/ -+/* Root Hub functions */ -+/******************************************************************/ -+ -+/* root hub status */ -+static const struct usb_hub_status rh_hub_status = -+ { -+ .wHubStatus = 0, -+ .wHubChange = 0, -+ }; -+ -+/* root hub descriptor */ -+static const u8 rh_hub_descr[] = -+ { -+ 0x09, /* bDescLength */ -+ 0x29, /* bDescriptorType */ -+ USB_ROOT_HUB_PORTS, /* bNbrPorts */ -+ 0x00, /* wHubCharacteristics */ -+ 0x00, -+ 0x01, /* bPwrOn2pwrGood */ -+ 0x00, /* bHubContrCurrent */ -+ 0x00, /* DeviceRemovable */ -+ 0xff /* PortPwrCtrlMask */ -+ }; -+ -+/* Actual holder of root hub status*/ -+struct crisv10_rh rh; -+ -+/* Initialize root hub data structures (called from dvdrv_hcd_probe()) */ -+int rh_init(void) { -+ int i; -+ /* Reset port status flags */ -+ for (i = 0; i < USB_ROOT_HUB_PORTS; i++) { -+ rh.wPortChange[i] = 0; -+ rh.wPortStatusPrev[i] = 0; -+ } -+ return 0; -+} -+ -+#define RH_FEAT_MASK ((1<lock); -+ for (i = 1; i <= crisv10_hcd->num_ports; i++) { -+ if (rh.wPortChange[map_port(i)]) { -+ *buf |= (1 << i); -+ rh_dbg("rh_status_data_request, change on port %d: %s Current Status: %s\n", i, -+ port_status_to_str(rh.wPortChange[map_port(i)]), -+ port_status_to_str(rh.wPortStatusPrev[map_port(i)])); -+ } -+ } -+ spin_unlock(&crisv10_hcd->lock); -+ -+// DBFEXIT; -+ -+ return *buf == 0 ? 0 : 1; -+} -+ -+/* Handle a control request for the root hub (called from hcd_driver) */ -+static int rh_control_request(struct usb_hcd *hcd, -+ u16 typeReq, -+ u16 wValue, -+ u16 wIndex, -+ char *buf, -+ u16 wLength) { -+ -+ struct crisv10_hcd *crisv10_hcd = hcd_to_crisv10_hcd(hcd); -+ int retval = 0; -+ int len; -+ DBFENTER; -+ -+ switch (typeReq) { -+ case GetHubDescriptor: -+ rh_dbg("GetHubDescriptor\n"); -+ len = min_t(unsigned int, sizeof rh_hub_descr, wLength); -+ memcpy(buf, rh_hub_descr, len); -+ buf[2] = crisv10_hcd->num_ports; -+ break; -+ case GetHubStatus: -+ rh_dbg("GetHubStatus\n"); -+ len = min_t(unsigned int, sizeof rh_hub_status, wLength); -+ memcpy(buf, &rh_hub_status, len); -+ break; -+ case GetPortStatus: -+ if (!wIndex || wIndex > crisv10_hcd->num_ports) -+ goto error; -+ rh_dbg("GetportStatus, port:%d change:%s status:%s\n", wIndex, -+ port_status_to_str(rh.wPortChange[map_port(wIndex)]), -+ port_status_to_str(rh.wPortStatusPrev[map_port(wIndex)])); -+ *(u16 *) buf = cpu_to_le16(rh.wPortStatusPrev[map_port(wIndex)]); -+ *(u16 *) (buf + 2) = cpu_to_le16(rh.wPortChange[map_port(wIndex)]); -+ break; -+ case SetHubFeature: -+ rh_dbg("SetHubFeature\n"); -+ case ClearHubFeature: -+ rh_dbg("ClearHubFeature\n"); -+ switch (wValue) { -+ case C_HUB_OVER_CURRENT: -+ case C_HUB_LOCAL_POWER: -+ rh_warn("Not implemented hub request:%d \n", typeReq); -+ /* not implemented */ -+ break; -+ default: -+ goto error; -+ } -+ break; -+ case SetPortFeature: -+ if (!wIndex || wIndex > crisv10_hcd->num_ports) -+ goto error; -+ if(rh_set_port_feature(map_port(wIndex), wValue)) -+ goto error; -+ break; -+ case ClearPortFeature: -+ if (!wIndex || wIndex > crisv10_hcd->num_ports) -+ goto error; -+ if(rh_clear_port_feature(map_port(wIndex), wValue)) -+ goto error; -+ break; -+ default: -+ rh_warn("Unknown hub request: %d\n", typeReq); -+ error: -+ retval = -EPIPE; -+ } -+ DBFEXIT; -+ return retval; -+} -+ -+int rh_set_port_feature(__u8 bPort, __u16 wFeature) { -+ __u8 bUsbCommand = 0; -+ switch(wFeature) { -+ case USB_PORT_FEAT_RESET: -+ rh_dbg("SetPortFeature: reset\n"); -+ bUsbCommand |= IO_STATE(R_USB_COMMAND, port_cmd, reset); -+ goto set; -+ break; -+ case USB_PORT_FEAT_SUSPEND: -+ rh_dbg("SetPortFeature: suspend\n"); -+ bUsbCommand |= IO_STATE(R_USB_COMMAND, port_cmd, suspend); -+ goto set; -+ break; -+ case USB_PORT_FEAT_POWER: -+ rh_dbg("SetPortFeature: power\n"); -+ break; -+ case USB_PORT_FEAT_C_CONNECTION: -+ rh_dbg("SetPortFeature: c_connection\n"); -+ break; -+ case USB_PORT_FEAT_C_RESET: -+ rh_dbg("SetPortFeature: c_reset\n"); -+ break; -+ case USB_PORT_FEAT_C_OVER_CURRENT: -+ rh_dbg("SetPortFeature: c_over_current\n"); -+ break; -+ -+ set: -+ /* Select which port via the port_sel field */ -+ bUsbCommand |= IO_FIELD(R_USB_COMMAND, port_sel, bPort+1); -+ -+ /* Make sure the controller isn't busy. */ -+ crisv10_ready_wait(); -+ /* Send out the actual command to the USB controller */ -+ *R_USB_COMMAND = bUsbCommand; -+ -+ /* If port reset then also bring USB controller into running state */ -+ if(wFeature == USB_PORT_FEAT_RESET) { -+ /* Wait a while for controller to first become started after port reset */ -+ udelay(12000); /* 12ms blocking wait */ -+ -+ /* Make sure the controller isn't busy. */ -+ crisv10_ready_wait(); -+ -+ /* If all enabled ports were disabled the host controller goes down into -+ started mode, so we need to bring it back into the running state. -+ (This is safe even if it's already in the running state.) */ -+ *R_USB_COMMAND = -+ IO_STATE(R_USB_COMMAND, port_sel, nop) | -+ IO_STATE(R_USB_COMMAND, port_cmd, reset) | -+ IO_STATE(R_USB_COMMAND, ctrl_cmd, host_run); -+ } -+ -+ break; -+ default: -+ rh_dbg("SetPortFeature: unknown feature\n"); -+ return -1; -+ } -+ return 0; -+} -+ -+int rh_clear_port_feature(__u8 bPort, __u16 wFeature) { -+ switch(wFeature) { -+ case USB_PORT_FEAT_ENABLE: -+ rh_dbg("ClearPortFeature: enable\n"); -+ rh_disable_port(bPort); -+ break; -+ case USB_PORT_FEAT_SUSPEND: -+ rh_dbg("ClearPortFeature: suspend\n"); -+ break; -+ case USB_PORT_FEAT_POWER: -+ rh_dbg("ClearPortFeature: power\n"); -+ break; -+ -+ case USB_PORT_FEAT_C_ENABLE: -+ rh_dbg("ClearPortFeature: c_enable\n"); -+ goto clear; -+ case USB_PORT_FEAT_C_SUSPEND: -+ rh_dbg("ClearPortFeature: c_suspend\n"); -+ goto clear; -+ case USB_PORT_FEAT_C_CONNECTION: -+ rh_dbg("ClearPortFeature: c_connection\n"); -+ goto clear; -+ case USB_PORT_FEAT_C_OVER_CURRENT: -+ rh_dbg("ClearPortFeature: c_over_current\n"); -+ goto clear; -+ case USB_PORT_FEAT_C_RESET: -+ rh_dbg("ClearPortFeature: c_reset\n"); -+ goto clear; -+ clear: -+ rh.wPortChange[bPort] &= ~(1 << (wFeature - 16)); -+ break; -+ default: -+ rh_dbg("ClearPortFeature: unknown feature\n"); -+ return -1; -+ } -+ return 0; -+} -+ -+ -+#ifdef CONFIG_PM -+/* Handle a suspend request for the root hub (called from hcd_driver) */ -+static int rh_suspend_request(struct usb_hcd *hcd) -+{ -+ return 0; /* no-op for now */ -+} -+ -+/* Handle a resume request for the root hub (called from hcd_driver) */ -+static int rh_resume_request(struct usb_hcd *hcd) -+{ -+ return 0; /* no-op for now */ -+} -+#endif /* CONFIG_PM */ -+ -+ -+ -+/* Wrapper function for workaround port disable registers in USB controller */ -+static void rh_disable_port(unsigned int port) { -+ volatile int timeout = 10000; -+ volatile char* usb_portx_disable; -+ switch(port) { -+ case 0: -+ usb_portx_disable = R_USB_PORT1_DISABLE; -+ break; -+ case 1: -+ usb_portx_disable = R_USB_PORT2_DISABLE; -+ break; -+ default: -+ /* Invalid port index */ -+ return; -+ } -+ /* Set disable flag in special register */ -+ *usb_portx_disable = IO_STATE(R_USB_PORT1_DISABLE, disable, yes); -+ /* Wait until not enabled anymore */ -+ while((rh.wPortStatusPrev[port] & -+ IO_STATE(R_USB_RH_PORT_STATUS_1, enabled, yes)) && -+ (timeout-- > 0)); -+ if(timeout == 0) { -+ warn("Timeout while waiting for port %d to become disabled\n", port); -+ } -+ /* clear disable flag in special register */ -+ *usb_portx_disable = IO_STATE(R_USB_PORT1_DISABLE, disable, no); -+ rh_info("Physical port %d disabled\n", port+1); -+} -+ -+ -+/******************************************************************/ -+/* Transfer Controller (TC) functions */ -+/******************************************************************/ -+ -+/* FIXME: Should RX_BUF_SIZE be a config option, or maybe we should adjust it -+ dynamically? -+ To adjust it dynamically we would have to get an interrupt when we reach -+ the end of the rx descriptor list, or when we get close to the end, and -+ then allocate more descriptors. */ -+#define NBR_OF_RX_DESC 512 -+#define RX_DESC_BUF_SIZE 1024 -+#define RX_BUF_SIZE (NBR_OF_RX_DESC * RX_DESC_BUF_SIZE) -+ -+ -+/* Local variables for Transfer Controller */ -+/* --------------------------------------- */ -+ -+/* This is a circular (double-linked) list of the active urbs for each epid. -+ The head is never removed, and new urbs are linked onto the list as -+ urb_entry_t elements. Don't reference urb_list directly; use the wrapper -+ functions instead (which includes spin_locks) */ -+static struct list_head urb_list[NBR_OF_EPIDS]; -+ -+/* Read about the need and usage of this lock in submit_ctrl_urb. */ -+/* Lock for URB lists for each EPID */ -+static spinlock_t urb_list_lock; -+ -+/* Lock for EPID array register (R_USB_EPT_x) in Etrax */ -+static spinlock_t etrax_epid_lock; -+ -+/* Lock for dma8 sub0 handling */ -+static spinlock_t etrax_dma8_sub0_lock; -+ -+/* DMA IN cache bug. Align the DMA IN buffers to 32 bytes, i.e. a cache line. -+ Since RX_DESC_BUF_SIZE is 1024 is a multiple of 32, all rx buffers will be -+ cache aligned. */ -+static volatile unsigned char RxBuf[RX_BUF_SIZE] __attribute__ ((aligned (32))); -+static volatile struct USB_IN_Desc RxDescList[NBR_OF_RX_DESC] __attribute__ ((aligned (4))); -+ -+/* Pointers into RxDescList. */ -+static volatile struct USB_IN_Desc *myNextRxDesc; -+static volatile struct USB_IN_Desc *myLastRxDesc; -+ -+/* A zout transfer makes a memory access at the address of its buf pointer, -+ which means that setting this buf pointer to 0 will cause an access to the -+ flash. In addition to this, setting sw_len to 0 results in a 16/32 bytes -+ (depending on DMA burst size) transfer. -+ Instead, we set it to 1, and point it to this buffer. */ -+static int zout_buffer[4] __attribute__ ((aligned (4))); -+ -+/* Cache for allocating new EP and SB descriptors. */ -+//static kmem_cache_t *usb_desc_cache; -+static struct kmem_cache *usb_desc_cache; -+ -+/* Cache for the data allocated in the isoc descr top half. */ -+//static kmem_cache_t *isoc_compl_cache; -+static struct kmem_cache *isoc_compl_cache; -+ -+/* Cache for the data allocated when delayed finishing of URBs */ -+//static kmem_cache_t *later_data_cache; -+static struct kmem_cache *later_data_cache; -+ -+/* Counter to keep track of how many Isoc EP we have sat up. Used to enable -+ and disable iso_eof interrupt. We only need these interrupts when we have -+ Isoc data endpoints (consumes CPU cycles). -+ FIXME: This could be more fine granular, so this interrupt is only enabled -+ when we have a In Isoc URB not URB_ISO_ASAP flaged queued. */ -+static int isoc_epid_counter; -+ -+/* Protecting wrapper functions for R_USB_EPT_x */ -+/* -------------------------------------------- */ -+static inline void etrax_epid_set(__u8 index, __u32 data) { -+ unsigned long flags; -+ spin_lock_irqsave(&etrax_epid_lock, flags); -+ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index); -+ nop(); -+ *R_USB_EPT_DATA = data; -+ spin_unlock_irqrestore(&etrax_epid_lock, flags); -+} -+ -+static inline void etrax_epid_clear_error(__u8 index) { -+ unsigned long flags; -+ spin_lock_irqsave(&etrax_epid_lock, flags); -+ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index); -+ nop(); -+ *R_USB_EPT_DATA &= -+ ~(IO_MASK(R_USB_EPT_DATA, error_count_in) | -+ IO_MASK(R_USB_EPT_DATA, error_count_out) | -+ IO_MASK(R_USB_EPT_DATA, error_code)); -+ spin_unlock_irqrestore(&etrax_epid_lock, flags); -+} -+ -+static inline void etrax_epid_set_toggle(__u8 index, __u8 dirout, -+ __u8 toggle) { -+ unsigned long flags; -+ spin_lock_irqsave(&etrax_epid_lock, flags); -+ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index); -+ nop(); -+ if(dirout) { -+ *R_USB_EPT_DATA &= ~IO_MASK(R_USB_EPT_DATA, t_out); -+ *R_USB_EPT_DATA |= IO_FIELD(R_USB_EPT_DATA, t_out, toggle); -+ } else { -+ *R_USB_EPT_DATA &= ~IO_MASK(R_USB_EPT_DATA, t_in); -+ *R_USB_EPT_DATA |= IO_FIELD(R_USB_EPT_DATA, t_in, toggle); -+ } -+ spin_unlock_irqrestore(&etrax_epid_lock, flags); -+} -+ -+static inline __u8 etrax_epid_get_toggle(__u8 index, __u8 dirout) { -+ unsigned long flags; -+ __u8 toggle; -+ spin_lock_irqsave(&etrax_epid_lock, flags); -+ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index); -+ nop(); -+ if (dirout) { -+ toggle = IO_EXTRACT(R_USB_EPT_DATA, t_out, *R_USB_EPT_DATA); -+ } else { -+ toggle = IO_EXTRACT(R_USB_EPT_DATA, t_in, *R_USB_EPT_DATA); -+ } -+ spin_unlock_irqrestore(&etrax_epid_lock, flags); -+ return toggle; -+} -+ -+ -+static inline __u32 etrax_epid_get(__u8 index) { -+ unsigned long flags; -+ __u32 data; -+ spin_lock_irqsave(&etrax_epid_lock, flags); -+ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, index); -+ nop(); -+ data = *R_USB_EPT_DATA; -+ spin_unlock_irqrestore(&etrax_epid_lock, flags); -+ return data; -+} -+ -+ -+ -+ -+/* Main functions for Transfer Controller */ -+/* -------------------------------------- */ -+ -+/* Init structs, memories and lists used by Transfer Controller */ -+int tc_init(struct usb_hcd *hcd) { -+ int i; -+ /* Clear software state info for all epids */ -+ memset(epid_state, 0, sizeof(struct etrax_epid) * NBR_OF_EPIDS); -+ -+ /* Set Invalid and Dummy as being in use and disabled */ -+ epid_state[INVALID_EPID].inuse = 1; -+ epid_state[DUMMY_EPID].inuse = 1; -+ epid_state[INVALID_EPID].disabled = 1; -+ epid_state[DUMMY_EPID].disabled = 1; -+ -+ /* Clear counter for how many Isoc epids we have sat up */ -+ isoc_epid_counter = 0; -+ -+ /* Initialize the urb list by initiating a head for each list. -+ Also reset list hodling active URB for each epid */ -+ for (i = 0; i < NBR_OF_EPIDS; i++) { -+ INIT_LIST_HEAD(&urb_list[i]); -+ activeUrbList[i] = NULL; -+ } -+ -+ /* Init lock for URB lists */ -+ spin_lock_init(&urb_list_lock); -+ /* Init lock for Etrax R_USB_EPT register */ -+ spin_lock_init(&etrax_epid_lock); -+ /* Init lock for Etrax dma8 sub0 handling */ -+ spin_lock_init(&etrax_dma8_sub0_lock); -+ -+ /* We use kmem_cache_* to make sure that all DMA desc. are dword aligned */ -+ -+ /* Note that we specify sizeof(struct USB_EP_Desc) as the size, but also -+ allocate SB descriptors from this cache. This is ok since -+ sizeof(struct USB_EP_Desc) == sizeof(struct USB_SB_Desc). */ -+// usb_desc_cache = kmem_cache_create("usb_desc_cache", -+// sizeof(struct USB_EP_Desc), 0, -+// SLAB_HWCACHE_ALIGN, 0, 0); -+ usb_desc_cache = kmem_cache_create( -+ "usb_desc_cache", -+ sizeof(struct USB_EP_Desc), -+ 0, -+ SLAB_HWCACHE_ALIGN, -+ NULL); -+ if(usb_desc_cache == NULL) { -+ return -ENOMEM; -+ } -+ -+ /* Create slab cache for speedy allocation of memory for isoc bottom-half -+ interrupt handling */ -+// isoc_compl_cache = -+// kmem_cache_create("isoc_compl_cache", -+// sizeof(struct crisv10_isoc_complete_data), -+// 0, SLAB_HWCACHE_ALIGN, 0, 0); -+ isoc_compl_cache = kmem_cache_create( -+ "isoc_compl_cache", -+ sizeof(struct crisv10_isoc_complete_data), -+ 0, -+ SLAB_HWCACHE_ALIGN, -+ NULL -+ ); -+ -+ if(isoc_compl_cache == NULL) { -+ return -ENOMEM; -+ } -+ -+ /* Create slab cache for speedy allocation of memory for later URB finish -+ struct */ -+// later_data_cache = -+// kmem_cache_create("later_data_cache", -+// sizeof(struct urb_later_data), -+// 0, SLAB_HWCACHE_ALIGN, 0, 0); -+ -+ later_data_cache = kmem_cache_create( -+ "later_data_cache", -+ sizeof(struct urb_later_data), -+ 0, -+ SLAB_HWCACHE_ALIGN, -+ NULL -+ ); -+ -+ if(later_data_cache == NULL) { -+ return -ENOMEM; -+ } -+ -+ -+ /* Initiate the bulk start timer. */ -+ init_timer(&bulk_start_timer); -+ bulk_start_timer.expires = jiffies + BULK_START_TIMER_INTERVAL; -+ bulk_start_timer.function = tc_bulk_start_timer_func; -+ add_timer(&bulk_start_timer); -+ -+ -+ /* Initiate the bulk eot timer. */ -+ init_timer(&bulk_eot_timer); -+ bulk_eot_timer.expires = jiffies + BULK_EOT_TIMER_INTERVAL; -+ bulk_eot_timer.function = tc_bulk_eot_timer_func; -+ bulk_eot_timer.data = (unsigned long)hcd; -+ add_timer(&bulk_eot_timer); -+ -+ return 0; -+} -+ -+/* Uninitialize all resources used by Transfer Controller */ -+void tc_destroy(void) { -+ -+ /* Destroy all slab cache */ -+ kmem_cache_destroy(usb_desc_cache); -+ kmem_cache_destroy(isoc_compl_cache); -+ kmem_cache_destroy(later_data_cache); -+ -+ /* Remove timers */ -+ del_timer(&bulk_start_timer); -+ del_timer(&bulk_eot_timer); -+} -+ -+static void restart_dma8_sub0(void) { -+ unsigned long flags; -+ spin_lock_irqsave(&etrax_dma8_sub0_lock, flags); -+ /* Verify that the dma is not running */ -+ if ((*R_DMA_CH8_SUB0_CMD & IO_MASK(R_DMA_CH8_SUB0_CMD, cmd)) == 0) { -+ struct USB_EP_Desc *ep = (struct USB_EP_Desc *)phys_to_virt(*R_DMA_CH8_SUB0_EP); -+ while (DUMMY_EPID == IO_EXTRACT(USB_EP_command, epid, ep->command)) { -+ ep = (struct USB_EP_Desc *)phys_to_virt(ep->next); -+ } -+ /* Advance the DMA to the next EP descriptor that is not a DUMMY_EPID. -+ * ep->next is already a physical address. virt_to_phys is needed, see -+ * http://mhonarc.axis.se/dev-etrax/msg08630.html -+ */ -+ //*R_DMA_CH8_SUB0_EP = ep->next; -+ *R_DMA_CH8_SUB0_EP = virt_to_phys(ep); -+ /* Restart the DMA */ -+ *R_DMA_CH8_SUB0_CMD = IO_STATE(R_DMA_CH8_SUB0_CMD, cmd, start); -+ } -+ spin_unlock_irqrestore(&etrax_dma8_sub0_lock, flags); -+} -+ -+/* queue an URB with the transfer controller (called from hcd_driver) */ -+//static int tc_urb_enqueue(struct usb_hcd *hcd, -+// struct usb_host_endpoint *ep, -+// struct urb *urb, -+// gfp_t mem_flags) { -+static int tc_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags) -+{ -+ int epid; -+ int retval; -+// int bustime = 0; -+ int maxpacket; -+ unsigned long flags; -+ struct crisv10_urb_priv *urb_priv; -+ struct crisv10_hcd* crisv10_hcd = hcd_to_crisv10_hcd(hcd); -+ DBFENTER; -+ -+ if(!(crisv10_hcd->running)) { -+ /* The USB Controller is not running, probably because no device is -+ attached. No idea to enqueue URBs then */ -+ tc_warn("Rejected enqueueing of URB:0x%x because no dev attached\n", -+ (unsigned int)urb); -+ return -ENOENT; -+ } -+ -+ maxpacket = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)); -+ -+ /* hinko ignore usb_pipeisoc */ -+#if 0 -+ /* Special case check for In Isoc transfers. Specification states that each -+ In Isoc transfer consists of one packet and therefore it should fit into -+ the transfer-buffer of an URB. -+ We do the check here to be sure (an invalid scenario can be produced with -+ parameters to the usbtest suite) */ -+ if(usb_pipeisoc(urb->pipe) && usb_pipein(urb->pipe) && -+ (urb->transfer_buffer_length < maxpacket)) { -+ tc_err("Submit In Isoc URB with buffer length:%d to pipe with maxpacketlen: %d\n", urb->transfer_buffer_length, maxpacket); -+ return -EMSGSIZE; -+ } -+ -+ /* Check if there is enough bandwidth for periodic transfer */ -+ if(usb_pipeint(urb->pipe) || usb_pipeisoc(urb->pipe)) { -+ /* only check (and later claim) if not already claimed */ -+ if (urb->bandwidth == 0) { -+ bustime = usb_check_bandwidth(urb->dev, urb); -+ if (bustime < 0) { -+ tc_err("Not enough periodic bandwidth\n"); -+ return -ENOSPC; -+ } -+ } -+ } -+#endif -+ -+ /* Check if there is a epid for URBs destination, if not this function -+ set up one. */ -+ //epid = tc_setup_epid(ep, urb, mem_flags); -+ epid = tc_setup_epid(urb, mem_flags); -+ if (epid < 0) { -+ tc_err("Failed setup epid:%d for URB:0x%x\n", epid, (unsigned int)urb); -+ DBFEXIT; -+ return -ENOMEM; -+ } -+ -+ if(urb == activeUrbList[epid]) { -+ tc_err("Resubmition of allready active URB:0x%x\n", (unsigned int)urb); -+ return -ENXIO; -+ } -+ -+ if(urb_list_entry(urb, epid)) { -+ tc_err("Resubmition of allready queued URB:0x%x\n", (unsigned int)urb); -+ return -ENXIO; -+ } -+ -+ /* If we actively have flaged endpoint as disabled then refuse submition */ -+ if(epid_state[epid].disabled) { -+ return -ENOENT; -+ } -+ -+ /* Allocate and init HC-private data for URB */ -+ if(urb_priv_create(hcd, urb, epid, mem_flags) != 0) { -+ DBFEXIT; -+ return -ENOMEM; -+ } -+ urb_priv = urb->hcpriv; -+ -+ tc_dbg("Enqueue URB:0x%x[%d] epid:%d (%s) bufflen:%d\n", -+ (unsigned int)urb, urb_priv->urb_num, epid, -+ pipe_to_str(urb->pipe), urb->transfer_buffer_length); -+ -+ /* Create and link SBs required for this URB */ -+ retval = create_sb_for_urb(urb, mem_flags); -+ if(retval != 0) { -+ tc_err("Failed to create SBs for URB:0x%x[%d]\n", (unsigned int)urb, -+ urb_priv->urb_num); -+ urb_priv_free(hcd, urb); -+ DBFEXIT; -+ return retval; -+ } -+ -+ /* Init intr EP pool if this URB is a INTR transfer. This pool is later -+ used when inserting EPs in the TxIntrEPList. We do the alloc here -+ so we can't run out of memory later */ -+ if(usb_pipeint(urb->pipe)) { -+ retval = init_intr_urb(urb, mem_flags); -+ if(retval != 0) { -+ tc_warn("Failed to init Intr URB\n"); -+ urb_priv_free(hcd, urb); -+ DBFEXIT; -+ return retval; -+ } -+ } -+ -+ /* Disable other access when inserting USB */ -+ -+ /* BUG on sleeping inside int disabled if using local_irq_save/local_irq_restore -+ * her - because urb_list_add() and tc_dma_process_queue() save irqs again !??! -+ */ -+// local_irq_save(flags); -+ -+ /* hinko ignore usb_pipeisoc */ -+#if 0 -+ /* Claim bandwidth, if needed */ -+ if(bustime) { -+ usb_claim_bandwidth(urb->dev, urb, bustime, 0); -+ } -+ -+ /* Add URB to EP queue */ -+ urb_list_add(urb, epid, mem_flags); -+ -+ if(usb_pipeisoc(urb->pipe)) { -+ /* Special processing of Isoc URBs. */ -+ tc_dma_process_isoc_urb(urb); -+ } else { -+ /* Process EP queue for rest of the URB types (Bulk, Ctrl, Intr) */ -+ tc_dma_process_queue(epid); -+ } -+#endif -+ /* Add URB to EP queue */ -+ urb_list_add(urb, epid, mem_flags); -+ -+ /*hinko link/unlink urb -> ep */ -+ spin_lock_irqsave(&crisv10_hcd->lock, flags); -+ //spin_lock(&crisv10_hcd->lock); -+ retval = usb_hcd_link_urb_to_ep(hcd, urb); -+ if (retval) { -+ spin_unlock_irqrestore(&crisv10_hcd->lock, flags); -+ tc_warn("Failed to link urb to ep\n"); -+ urb_priv_free(hcd, urb); -+ DBFEXIT; -+ return retval; -+ } -+ spin_unlock_irqrestore(&crisv10_hcd->lock, flags); -+ //spin_unlock(&crisv10_hcd->lock); -+ -+ /* Process EP queue for rest of the URB types (Bulk, Ctrl, Intr) */ -+ tc_dma_process_queue(epid); -+ -+// local_irq_restore(flags); -+ -+ DBFEXIT; -+ return 0; -+} -+ -+/* remove an URB from the transfer controller queues (called from hcd_driver)*/ -+//static int tc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) -+static int tc_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) -+{ -+ struct crisv10_urb_priv *urb_priv; -+ unsigned long flags; -+ int epid; -+ -+ DBFENTER; -+ /* Disable interrupts here since a descriptor interrupt for the isoc epid -+ will modify the sb list. This could possibly be done more granular, but -+ urb_dequeue should not be used frequently anyway. -+ */ -+ local_irq_save(flags); -+ -+ urb_priv = urb->hcpriv; -+ -+ if (!urb_priv) { -+ /* This happens if a device driver calls unlink on an urb that -+ was never submitted (lazy driver) or if the urb was completed -+ while dequeue was being called. */ -+ tc_warn("Dequeing of not enqueued URB:0x%x\n", (unsigned int)urb); -+ local_irq_restore(flags); -+ return 0; -+ } -+ epid = urb_priv->epid; -+ -+ tc_warn("Dequeing %s URB:0x%x[%d] (%s %s epid:%d) status:%d %s\n", -+ (urb == activeUrbList[epid]) ? "active" : "queued", -+ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe), -+ str_type(urb->pipe), epid, urb->status, -+ (urb_priv->later_data) ? "later-sched" : ""); -+ -+ /* For Bulk, Ctrl and Intr are only one URB active at a time. So any URB -+ that isn't active can be dequeued by just removing it from the queue */ -+ if(usb_pipebulk(urb->pipe) || usb_pipecontrol(urb->pipe) || -+ usb_pipeint(urb->pipe)) { -+ -+ /* Check if URB haven't gone further than the queue */ -+ if(urb != activeUrbList[epid]) { -+ ASSERT(urb_priv->later_data == NULL); -+ tc_warn("Dequeing URB:0x%x[%d] (%s %s epid:%d) from queue" -+ " (not active)\n", (unsigned int)urb, urb_priv->urb_num, -+ str_dir(urb->pipe), str_type(urb->pipe), epid); -+ -+ /* Finish the URB with error status from USB core */ -+ tc_finish_urb(hcd, urb, urb->status); -+ local_irq_restore(flags); -+ return 0; -+ } -+ } -+ -+ /* Set URB status to Unlink for handling when interrupt comes. */ -+ urb_priv->urb_state = UNLINK; -+ -+ /* Differentiate dequeing of Bulk and Ctrl from Isoc and Intr */ -+ switch(usb_pipetype(urb->pipe)) { -+ case PIPE_BULK: -+ /* Check if EP still is enabled */ -+ if (TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) { -+ /* The EP was enabled, disable it. */ -+ TxBulkEPList[epid].command &= ~IO_MASK(USB_EP_command, enable); -+ } -+ /* Kicking dummy list out of the party. */ -+ TxBulkEPList[epid].next = virt_to_phys(&TxBulkEPList[(epid + 1) % NBR_OF_EPIDS]); -+ break; -+ case PIPE_CONTROL: -+ /* Check if EP still is enabled */ -+ if (TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)) { -+ /* The EP was enabled, disable it. */ -+ TxCtrlEPList[epid].command &= ~IO_MASK(USB_EP_command, enable); -+ } -+ break; -+ case PIPE_ISOCHRONOUS: -+ /* Disabling, busy-wait and unlinking of Isoc SBs will be done in -+ finish_isoc_urb(). Because there might the case when URB is dequeued -+ but there are other valid URBs waiting */ -+ -+ /* Check if In Isoc EP still is enabled */ -+ if (TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable)) { -+ /* The EP was enabled, disable it. */ -+ TxIsocEPList[epid].command &= ~IO_MASK(USB_EP_command, enable); -+ } -+ break; -+ case PIPE_INTERRUPT: -+ /* Special care is taken for interrupt URBs. EPs are unlinked in -+ tc_finish_urb */ -+ break; -+ default: -+ break; -+ } -+ -+ /* Asynchronous unlink, finish the URB later from scheduled or other -+ event (data finished, error) */ -+ tc_finish_urb_later(hcd, urb, urb->status); -+ -+ local_irq_restore(flags); -+ DBFEXIT; -+ return 0; -+} -+ -+ -+static void tc_sync_finish_epid(struct usb_hcd *hcd, int epid) { -+ volatile int timeout = 10000; -+ struct urb* urb; -+ struct crisv10_urb_priv* urb_priv; -+ unsigned long flags; -+ -+ volatile struct USB_EP_Desc *first_ep; /* First EP in the list. */ -+ volatile struct USB_EP_Desc *curr_ep; /* Current EP, the iterator. */ -+ volatile struct USB_EP_Desc *next_ep; /* The EP after current. */ -+ -+ int type = epid_state[epid].type; -+ -+ /* Setting this flag will cause enqueue() to return -ENOENT for new -+ submitions on this endpoint and finish_urb() wont process queue further */ -+ epid_state[epid].disabled = 1; -+ -+ switch(type) { -+ case PIPE_BULK: -+ /* Check if EP still is enabled */ -+ if (TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) { -+ /* The EP was enabled, disable it. */ -+ TxBulkEPList[epid].command &= ~IO_MASK(USB_EP_command, enable); -+ tc_warn("sync_finish: Disabling EP for epid:%d\n", epid); -+ -+ /* Do busy-wait until DMA not using this EP descriptor anymore */ -+ while((*R_DMA_CH8_SUB0_EP == -+ virt_to_phys(&TxBulkEPList[epid])) && -+ (timeout-- > 0)); -+ if(timeout == 0) { -+ warn("Timeout while waiting for DMA-TX-Bulk to leave EP for" -+ " epid:%d\n", epid); -+ } -+ } -+ break; -+ -+ case PIPE_CONTROL: -+ /* Check if EP still is enabled */ -+ if (TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)) { -+ /* The EP was enabled, disable it. */ -+ TxCtrlEPList[epid].command &= ~IO_MASK(USB_EP_command, enable); -+ tc_warn("sync_finish: Disabling EP for epid:%d\n", epid); -+ -+ /* Do busy-wait until DMA not using this EP descriptor anymore */ -+ while((*R_DMA_CH8_SUB1_EP == -+ virt_to_phys(&TxCtrlEPList[epid])) && -+ (timeout-- > 0)); -+ if(timeout == 0) { -+ warn("Timeout while waiting for DMA-TX-Ctrl to leave EP for" -+ " epid:%d\n", epid); -+ } -+ } -+ break; -+ -+ case PIPE_INTERRUPT: -+ local_irq_save(flags); -+ /* Disable all Intr EPs belonging to epid */ -+ first_ep = &TxIntrEPList[0]; -+ curr_ep = first_ep; -+ do { -+ next_ep = (struct USB_EP_Desc *)phys_to_virt(curr_ep->next); -+ if (IO_EXTRACT(USB_EP_command, epid, next_ep->command) == epid) { -+ /* Disable EP */ -+ next_ep->command &= ~IO_MASK(USB_EP_command, enable); -+ } -+ curr_ep = phys_to_virt(curr_ep->next); -+ } while (curr_ep != first_ep); -+ -+ local_irq_restore(flags); -+ break; -+ -+ case PIPE_ISOCHRONOUS: -+ /* Check if EP still is enabled */ -+ if (TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable)) { -+ tc_warn("sync_finish: Disabling Isoc EP for epid:%d\n", epid); -+ /* The EP was enabled, disable it. */ -+ TxIsocEPList[epid].command &= ~IO_MASK(USB_EP_command, enable); -+ -+ while((*R_DMA_CH8_SUB3_EP == virt_to_phys(&TxIsocEPList[epid])) && -+ (timeout-- > 0)); -+ if(timeout == 0) { -+ warn("Timeout while waiting for DMA-TX-Isoc to leave EP for" -+ " epid:%d\n", epid); -+ } -+ } -+ break; -+ } -+ -+ local_irq_save(flags); -+ -+ /* Finish if there is active URB for this endpoint */ -+ if(activeUrbList[epid] != NULL) { -+ urb = activeUrbList[epid]; -+ urb_priv = urb->hcpriv; -+ ASSERT(urb_priv); -+ tc_warn("Sync finish %s URB:0x%x[%d] (%s %s epid:%d) status:%d %s\n", -+ (urb == activeUrbList[epid]) ? "active" : "queued", -+ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe), -+ str_type(urb->pipe), epid, urb->status, -+ (urb_priv->later_data) ? "later-sched" : ""); -+ -+ tc_finish_urb(hcd, activeUrbList[epid], -ENOENT); -+ ASSERT(activeUrbList[epid] == NULL); -+ } -+ -+ /* Finish any queued URBs for this endpoint. There won't be any resubmitions -+ because epid_disabled causes enqueue() to fail for this endpoint */ -+ while((urb = urb_list_first(epid)) != NULL) { -+ urb_priv = urb->hcpriv; -+ ASSERT(urb_priv); -+ -+ tc_warn("Sync finish %s URB:0x%x[%d] (%s %s epid:%d) status:%d %s\n", -+ (urb == activeUrbList[epid]) ? "active" : "queued", -+ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe), -+ str_type(urb->pipe), epid, urb->status, -+ (urb_priv->later_data) ? "later-sched" : ""); -+ -+ tc_finish_urb(hcd, urb, -ENOENT); -+ } -+ epid_state[epid].disabled = 0; -+ local_irq_restore(flags); -+} -+ -+/* free resources associated with an endpoint (called from hcd_driver) */ -+static void tc_endpoint_disable(struct usb_hcd *hcd, -+ struct usb_host_endpoint *ep) { -+ DBFENTER; -+ /* Only free epid if it has been allocated. We get two endpoint_disable -+ requests for ctrl endpoints so ignore the second one */ -+ if(ep->hcpriv != NULL) { -+ struct crisv10_ep_priv *ep_priv = ep->hcpriv; -+ int epid = ep_priv->epid; -+ tc_warn("endpoint_disable ep:0x%x ep-priv:0x%x (%s) (epid:%d freed)\n", -+ (unsigned int)ep, (unsigned int)ep->hcpriv, -+ endpoint_to_str(&(ep->desc)), epid); -+ -+ tc_sync_finish_epid(hcd, epid); -+ -+ ASSERT(activeUrbList[epid] == NULL); -+ ASSERT(list_empty(&urb_list[epid])); -+ -+ tc_free_epid(ep); -+ } else { -+ tc_dbg("endpoint_disable ep:0x%x ep-priv:0x%x (%s)\n", (unsigned int)ep, -+ (unsigned int)ep->hcpriv, endpoint_to_str(&(ep->desc))); -+ } -+ DBFEXIT; -+} -+ -+//static void tc_finish_urb_later_proc(void *data) { -+static void tc_finish_urb_later_proc(struct work_struct *work) { -+ unsigned long flags; -+ //struct urb_later_data* uld = (struct urb_later_data*)data; -+ struct urb_later_data* uld = container_of(work, struct urb_later_data, ws.work); -+ local_irq_save(flags); -+ if(uld->urb == NULL) { -+ late_dbg("Later finish of URB = NULL (allready finished)\n"); -+ } else { -+ struct crisv10_urb_priv* urb_priv = uld->urb->hcpriv; -+ ASSERT(urb_priv); -+ if(urb_priv->urb_num == uld->urb_num) { -+ late_dbg("Later finish of URB:0x%x[%d]\n", (unsigned int)(uld->urb), -+ urb_priv->urb_num); -+ if(uld->status != uld->urb->status) { -+ errno_dbg("Later-finish URB with status:%d, later-status:%d\n", -+ uld->urb->status, uld->status); -+ } -+ if(uld != urb_priv->later_data) { -+ panic("Scheduled uld not same as URBs uld\n"); -+ } -+ tc_finish_urb(uld->hcd, uld->urb, uld->status); -+ } else { -+ late_warn("Ignoring later finish of URB:0x%x[%d]" -+ ", urb_num doesn't match current URB:0x%x[%d]", -+ (unsigned int)(uld->urb), uld->urb_num, -+ (unsigned int)(uld->urb), urb_priv->urb_num); -+ } -+ } -+ local_irq_restore(flags); -+ kmem_cache_free(later_data_cache, uld); -+} -+ -+static void tc_finish_urb_later(struct usb_hcd *hcd, struct urb *urb, -+ int status) { -+ struct crisv10_urb_priv *urb_priv = urb->hcpriv; -+ struct urb_later_data* uld; -+ -+ ASSERT(urb_priv); -+ -+ if(urb_priv->later_data != NULL) { -+ /* Later-finish allready scheduled for this URB, just update status to -+ return when finishing later */ -+ errno_dbg("Later-finish schedule change URB status:%d with new" -+ " status:%d\n", urb_priv->later_data->status, status); -+ -+ urb_priv->later_data->status = status; -+ return; -+ } -+ -+ uld = kmem_cache_alloc(later_data_cache, GFP_ATOMIC); -+ ASSERT(uld); -+ -+ uld->hcd = hcd; -+ uld->urb = urb; -+ uld->urb_num = urb_priv->urb_num; -+ uld->status = status; -+ -+ //INIT_WORK(&uld->ws, tc_finish_urb_later_proc, uld); -+ INIT_DELAYED_WORK(&uld->ws, tc_finish_urb_later_proc); -+ urb_priv->later_data = uld; -+ -+ /* Schedule the finishing of the URB to happen later */ -+ schedule_delayed_work(&uld->ws, LATER_TIMER_DELAY); -+} -+ -+ /* hinko ignore usb_pipeisoc */ -+#if 0 -+static void tc_finish_isoc_urb(struct usb_hcd *hcd, struct urb *urb, -+ int status); -+#endif -+ -+static void tc_finish_urb(struct usb_hcd *hcd, struct urb *urb, int status) { -+ struct crisv10_hcd* crisv10_hcd = hcd_to_crisv10_hcd(hcd); -+ struct crisv10_urb_priv *urb_priv = urb->hcpriv; -+ int epid; -+ char toggle; -+ int urb_num; -+ unsigned long flags; -+ -+ DBFENTER; -+ ASSERT(urb_priv != NULL); -+ epid = urb_priv->epid; -+ urb_num = urb_priv->urb_num; -+ -+ if(urb != activeUrbList[epid]) { -+ if(urb_list_entry(urb, epid)) { -+ /* Remove this URB from the list. Only happens when URB are finished -+ before having been processed (dequeing) */ -+ urb_list_del(urb, epid); -+ } else { -+ tc_warn("Finishing of URB:0x%x[%d] neither active or in queue for" -+ " epid:%d\n", (unsigned int)urb, urb_num, epid); -+ } -+ } -+ -+ /* Cancel any pending later-finish of this URB */ -+ if(urb_priv->later_data) { -+ urb_priv->later_data->urb = NULL; -+ } -+ -+ /* For an IN pipe, we always set the actual length, regardless of whether -+ there was an error or not (which means the device driver can use the data -+ if it wants to). */ -+ if(usb_pipein(urb->pipe)) { -+ urb->actual_length = urb_priv->rx_offset; -+ } else { -+ /* Set actual_length for OUT urbs also; the USB mass storage driver seems -+ to want that. */ -+ if (status == 0 && urb->status == -EINPROGRESS) { -+ urb->actual_length = urb->transfer_buffer_length; -+ } else { -+ /* We wouldn't know of any partial writes if there was an error. */ -+ urb->actual_length = 0; -+ } -+ } -+ -+ -+ /* URB status mangling */ -+ if(urb->status == -EINPROGRESS) { -+ /* The USB core hasn't changed the status, let's set our finish status */ -+ urb->status = status; -+ -+ if ((status == 0) && (urb->transfer_flags & URB_SHORT_NOT_OK) && -+ usb_pipein(urb->pipe) && -+ (urb->actual_length != urb->transfer_buffer_length)) { -+ /* URB_SHORT_NOT_OK means that short reads (shorter than the endpoint's -+ max length) is to be treated as an error. */ -+ errno_dbg("Finishing URB:0x%x[%d] with SHORT_NOT_OK flag and short" -+ " data:%d\n", (unsigned int)urb, urb_num, -+ urb->actual_length); -+ urb->status = -EREMOTEIO; -+ } -+ -+ if(urb_priv->urb_state == UNLINK) { -+ /* URB has been requested to be unlinked asynchronously */ -+ urb->status = -ECONNRESET; -+ errno_dbg("Fixing unlink status of URB:0x%x[%d] to:%d\n", -+ (unsigned int)urb, urb_num, urb->status); -+ } -+ } else { -+ /* The USB Core wants to signal some error via the URB, pass it through */ -+ } -+ -+ /* hinko ignore usb_pipeisoc */ -+#if 0 -+ /* use completely different finish function for Isoc URBs */ -+ if(usb_pipeisoc(urb->pipe)) { -+ tc_finish_isoc_urb(hcd, urb, status); -+ return; -+ } -+#endif -+ -+ /* Do special unlinking of EPs for Intr traffic */ -+ if(usb_pipeint(urb->pipe)) { -+ tc_dma_unlink_intr_urb(urb); -+ } -+ -+ /* hinko ignore usb_pipeisoc */ -+#if 0 -+ /* Release allocated bandwidth for periodic transfers */ -+ if(usb_pipeint(urb->pipe) || usb_pipeisoc(urb->pipe)) -+ usb_release_bandwidth(urb->dev, urb, 0); -+#endif -+ -+ /* This URB is active on EP */ -+ if(urb == activeUrbList[epid]) { -+ /* We need to fiddle with the toggle bits because the hardware doesn't do -+ it for us. */ -+ toggle = etrax_epid_get_toggle(epid, usb_pipeout(urb->pipe)); -+ usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), -+ usb_pipeout(urb->pipe), toggle); -+ -+ /* Checks for Ctrl and Bulk EPs */ -+ switch(usb_pipetype(urb->pipe)) { -+ case PIPE_BULK: -+ /* Check so Bulk EP realy is disabled before finishing active URB */ -+ ASSERT((TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) == -+ IO_STATE(USB_EP_command, enable, no)); -+ /* Disable sub-pointer for EP to avoid next tx_interrupt() to -+ process Bulk EP. */ -+ TxBulkEPList[epid].sub = 0; -+ /* No need to wait for the DMA before changing the next pointer. -+ The modulo NBR_OF_EPIDS isn't actually necessary, since we will never use -+ the last one (INVALID_EPID) for actual traffic. */ -+ TxBulkEPList[epid].next = -+ virt_to_phys(&TxBulkEPList[(epid + 1) % NBR_OF_EPIDS]); -+ break; -+ case PIPE_CONTROL: -+ /* Check so Ctrl EP realy is disabled before finishing active URB */ -+ ASSERT((TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)) == -+ IO_STATE(USB_EP_command, enable, no)); -+ /* Disable sub-pointer for EP to avoid next tx_interrupt() to -+ process Ctrl EP. */ -+ TxCtrlEPList[epid].sub = 0; -+ break; -+ } -+ } -+ -+ /* Free HC-private URB data*/ -+ urb_priv_free(hcd, urb); -+ -+ if(urb->status) { -+ errno_dbg("finish_urb (URB:0x%x[%d] %s %s) (data:%d) status:%d\n", -+ (unsigned int)urb, urb_num, str_dir(urb->pipe), -+ str_type(urb->pipe), urb->actual_length, urb->status); -+ } else { -+ tc_dbg("finish_urb (URB:0x%x[%d] %s %s) (data:%d) status:%d\n", -+ (unsigned int)urb, urb_num, str_dir(urb->pipe), -+ str_type(urb->pipe), urb->actual_length, urb->status); -+ } -+ -+ /* If we just finished an active URB, clear active pointer. */ -+ if (urb == activeUrbList[epid]) { -+ /* Make URB not active on EP anymore */ -+ activeUrbList[epid] = NULL; -+ -+ if(urb->status == 0) { -+ /* URB finished sucessfully, process queue to see if there are any more -+ URBs waiting before we call completion function.*/ -+ if(crisv10_hcd->running) { -+ /* Only process queue if USB controller is running */ -+ tc_dma_process_queue(epid); -+ } else { -+ tc_warn("No processing of queue for epid:%d, USB Controller not" -+ " running\n", epid); -+ } -+ } -+ } -+ -+ /* Hand the URB from HCD to its USB device driver, using its completion -+ functions */ -+// usb_hcd_giveback_urb (hcd, urb); -+ /** -+ * usb_hcd_unlink_urb_from_ep - remove an URB from its endpoint queue -+ * @hcd: host controller to which @urb was submitted -+ * @urb: URB being unlinked -+ * -+ * Host controller drivers should call this routine before calling -+ * usb_hcd_giveback_urb(). The HCD's private spinlock must be held and -+ * interrupts must be disabled. The actions carried out here are required -+ * for URB completion. -+ */ -+ -+ /*hinko link/unlink urb -> ep */ -+ //spin_lock(&crisv10_hcd->lock); -+ spin_lock_irqsave(&crisv10_hcd->lock, flags); -+ usb_hcd_unlink_urb_from_ep(hcd, urb); -+ usb_hcd_giveback_urb(hcd, urb, status); -+ //spin_unlock(&crisv10_hcd->lock); -+ spin_unlock_irqrestore(&crisv10_hcd->lock, flags); -+ -+ /* Check the queue once more if the URB returned with error, because we -+ didn't do it before the completion function because the specification -+ states that the queue should not restart until all it's unlinked -+ URBs have been fully retired, with the completion functions run */ -+ if(crisv10_hcd->running) { -+ /* Only process queue if USB controller is running */ -+ tc_dma_process_queue(epid); -+ } else { -+ tc_warn("No processing of queue for epid:%d, USB Controller not running\n", -+ epid); -+ } -+ -+ DBFEXIT; -+} -+ -+ /* hinko ignore usb_pipeisoc */ -+#if 0 -+static void tc_finish_isoc_urb(struct usb_hcd *hcd, struct urb *urb, -+ int status) { -+ struct crisv10_urb_priv *urb_priv = urb->hcpriv; -+ int epid, i; -+ volatile int timeout = 10000; -+ -+ ASSERT(urb_priv); -+ epid = urb_priv->epid; -+ -+ ASSERT(usb_pipeisoc(urb->pipe)); -+ -+ /* Set that all isoc packets have status and length set before -+ completing the urb. */ -+ for (i = urb_priv->isoc_packet_counter; i < urb->number_of_packets; i++){ -+ urb->iso_frame_desc[i].actual_length = 0; -+ urb->iso_frame_desc[i].status = -EPROTO; -+ } -+ -+ /* Check if the URB is currently active (done or error) */ -+ if(urb == activeUrbList[epid]) { -+ /* Check if there are another In Isoc URB queued for this epid */ -+ if (!list_empty(&urb_list[epid])&& !epid_state[epid].disabled) { -+ /* Move it from queue to active and mark it started so Isoc transfers -+ won't be interrupted. -+ All Isoc URBs data transfers are already added to DMA lists so we -+ don't have to insert anything in DMA lists here. */ -+ activeUrbList[epid] = urb_list_first(epid); -+ ((struct crisv10_urb_priv *)(activeUrbList[epid]->hcpriv))->urb_state = -+ STARTED; -+ urb_list_del(activeUrbList[epid], epid); -+ -+ if(urb->status) { -+ errno_dbg("finish_isoc_urb (URB:0x%x[%d] %s %s) (%d of %d packets)" -+ " status:%d, new waiting URB:0x%x[%d]\n", -+ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe), -+ str_type(urb->pipe), urb_priv->isoc_packet_counter, -+ urb->number_of_packets, urb->status, -+ (unsigned int)activeUrbList[epid], -+ ((struct crisv10_urb_priv *)(activeUrbList[epid]->hcpriv))->urb_num); -+ } -+ -+ } else { /* No other URB queued for this epid */ -+ if(urb->status) { -+ errno_dbg("finish_isoc_urb (URB:0x%x[%d] %s %s) (%d of %d packets)" -+ " status:%d, no new URB waiting\n", -+ (unsigned int)urb, urb_priv->urb_num, str_dir(urb->pipe), -+ str_type(urb->pipe), urb_priv->isoc_packet_counter, -+ urb->number_of_packets, urb->status); -+ } -+ -+ /* Check if EP is still enabled, then shut it down. */ -+ if (TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable)) { -+ isoc_dbg("Isoc EP enabled for epid:%d, disabling it\n", epid); -+ -+ /* Should only occur for In Isoc EPs where SB isn't consumed. */ -+ ASSERT(usb_pipein(urb->pipe)); -+ -+ /* Disable it and wait for it to stop */ -+ TxIsocEPList[epid].command &= ~IO_MASK(USB_EP_command, enable); -+ -+ /* Ah, the luxury of busy-wait. */ -+ while((*R_DMA_CH8_SUB3_EP == virt_to_phys(&TxIsocEPList[epid])) && -+ (timeout-- > 0)); -+ if(timeout == 0) { -+ warn("Timeout while waiting for DMA-TX-Isoc to leave EP for epid:%d\n", epid); -+ } -+ } -+ -+ /* Unlink SB to say that epid is finished. */ -+ TxIsocEPList[epid].sub = 0; -+ TxIsocEPList[epid].hw_len = 0; -+ -+ /* No URB active for EP anymore */ -+ activeUrbList[epid] = NULL; -+ } -+ } else { /* Finishing of not active URB (queued up with SBs thought) */ -+ isoc_warn("finish_isoc_urb (URB:0x%x %s) (%d of %d packets) status:%d," -+ " SB queued but not active\n", -+ (unsigned int)urb, str_dir(urb->pipe), -+ urb_priv->isoc_packet_counter, urb->number_of_packets, -+ urb->status); -+ if(usb_pipeout(urb->pipe)) { -+ /* Finishing of not yet active Out Isoc URB needs unlinking of SBs. */ -+ struct USB_SB_Desc *iter_sb, *prev_sb, *next_sb; -+ -+ iter_sb = TxIsocEPList[epid].sub ? -+ phys_to_virt(TxIsocEPList[epid].sub) : 0; -+ prev_sb = 0; -+ -+ /* SB that is linked before this URBs first SB */ -+ while (iter_sb && (iter_sb != urb_priv->first_sb)) { -+ prev_sb = iter_sb; -+ iter_sb = iter_sb->next ? phys_to_virt(iter_sb->next) : 0; -+ } -+ -+ if (iter_sb == 0) { -+ /* Unlink of the URB currently being transmitted. */ -+ prev_sb = 0; -+ iter_sb = TxIsocEPList[epid].sub ? phys_to_virt(TxIsocEPList[epid].sub) : 0; -+ } -+ -+ while (iter_sb && (iter_sb != urb_priv->last_sb)) { -+ iter_sb = iter_sb->next ? phys_to_virt(iter_sb->next) : 0; -+ } -+ -+ if (iter_sb) { -+ next_sb = iter_sb->next ? phys_to_virt(iter_sb->next) : 0; -+ } else { -+ /* This should only happen if the DMA has completed -+ processing the SB list for this EP while interrupts -+ are disabled. */ -+ isoc_dbg("Isoc urb not found, already sent?\n"); -+ next_sb = 0; -+ } -+ if (prev_sb) { -+ prev_sb->next = next_sb ? virt_to_phys(next_sb) : 0; -+ } else { -+ TxIsocEPList[epid].sub = next_sb ? virt_to_phys(next_sb) : 0; -+ } -+ } -+ } -+ -+ /* Free HC-private URB data*/ -+ urb_priv_free(hcd, urb); -+ -+ usb_release_bandwidth(urb->dev, urb, 0); -+ -+ /* Hand the URB from HCD to its USB device driver, using its completion -+ functions */ -+ usb_hcd_giveback_urb (hcd, urb); -+} -+#endif -+ -+static __u32 urb_num = 0; -+ -+/* allocate and initialize URB private data */ -+static int urb_priv_create(struct usb_hcd *hcd, struct urb *urb, int epid, -+ int mem_flags) { -+ struct crisv10_urb_priv *urb_priv; -+ -+ urb_priv = kmalloc(sizeof *urb_priv, mem_flags); -+ if (!urb_priv) -+ return -ENOMEM; -+ memset(urb_priv, 0, sizeof *urb_priv); -+ -+ urb_priv->epid = epid; -+ urb_priv->urb_state = NOT_STARTED; -+ -+ urb->hcpriv = urb_priv; -+ /* Assign URB a sequence number, and increment counter */ -+ urb_priv->urb_num = urb_num; -+ urb_num++; -+ return 0; -+} -+ -+/* free URB private data */ -+static void urb_priv_free(struct usb_hcd *hcd, struct urb *urb) { -+ int i; -+ struct crisv10_urb_priv *urb_priv = urb->hcpriv; -+ ASSERT(urb_priv != 0); -+ -+ /* Check it has any SBs linked that needs to be freed*/ -+ if(urb_priv->first_sb != NULL) { -+ struct USB_SB_Desc *next_sb, *first_sb, *last_sb; -+ int i = 0; -+ first_sb = urb_priv->first_sb; -+ last_sb = urb_priv->last_sb; -+ ASSERT(last_sb); -+ while(first_sb != last_sb) { -+ next_sb = (struct USB_SB_Desc *)phys_to_virt(first_sb->next); -+ kmem_cache_free(usb_desc_cache, first_sb); -+ first_sb = next_sb; -+ i++; -+ } -+ kmem_cache_free(usb_desc_cache, last_sb); -+ i++; -+ } -+ -+ /* Check if it has any EPs in its Intr pool that also needs to be freed */ -+ if(urb_priv->intr_ep_pool_length > 0) { -+ for(i = 0; i < urb_priv->intr_ep_pool_length; i++) { -+ kfree(urb_priv->intr_ep_pool[i]); -+ } -+ /* -+ tc_dbg("Freed %d EPs from URB:0x%x EP pool\n", -+ urb_priv->intr_ep_pool_length, (unsigned int)urb); -+ */ -+ } -+ -+ kfree(urb_priv); -+ urb->hcpriv = NULL; -+} -+ -+static int ep_priv_create(struct usb_host_endpoint *ep, int mem_flags) { -+ struct crisv10_ep_priv *ep_priv; -+ -+ ep_priv = kmalloc(sizeof *ep_priv, mem_flags); -+ if (!ep_priv) -+ return -ENOMEM; -+ memset(ep_priv, 0, sizeof *ep_priv); -+ -+ ep->hcpriv = ep_priv; -+ return 0; -+} -+ -+static void ep_priv_free(struct usb_host_endpoint *ep) { -+ struct crisv10_ep_priv *ep_priv = ep->hcpriv; -+ ASSERT(ep_priv); -+ kfree(ep_priv); -+ ep->hcpriv = NULL; -+} -+ -+/* EPID handling functions, managing EP-list in Etrax through wrappers */ -+/* ------------------------------------------------------------------- */ -+ -+/* Sets up a new EPID for an endpoint or returns existing if found */ -+//static int tc_setup_epid(struct usb_host_endpoint *ep, struct urb *urb, -+// int mem_flags) { -+static int tc_setup_epid(struct urb *urb, int mem_flags) -+{ -+ int epid; -+ char devnum, endpoint, out_traffic, slow; -+ int maxlen; -+ __u32 epid_data; -+ struct usb_host_endpoint *ep = urb->ep; -+ struct crisv10_ep_priv *ep_priv = ep->hcpriv; -+ -+ DBFENTER; -+ -+ /* Check if a valid epid already is setup for this endpoint */ -+ if(ep_priv != NULL) { -+ return ep_priv->epid; -+ } -+ -+ /* We must find and initiate a new epid for this urb. */ -+ epid = tc_allocate_epid(); -+ -+ if (epid == -1) { -+ /* Failed to allocate a new epid. */ -+ DBFEXIT; -+ return epid; -+ } -+ -+ /* We now have a new epid to use. Claim it. */ -+ epid_state[epid].inuse = 1; -+ -+ /* Init private data for new endpoint */ -+ if(ep_priv_create(ep, mem_flags) != 0) { -+ return -ENOMEM; -+ } -+ ep_priv = ep->hcpriv; -+ ep_priv->epid = epid; -+ -+ devnum = usb_pipedevice(urb->pipe); -+ endpoint = usb_pipeendpoint(urb->pipe); -+ slow = (urb->dev->speed == USB_SPEED_LOW); -+ maxlen = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)); -+ -+ if (usb_pipetype(urb->pipe) == PIPE_CONTROL) { -+ /* We want both IN and OUT control traffic to be put on the same -+ EP/SB list. */ -+ out_traffic = 1; -+ } else { -+ out_traffic = usb_pipeout(urb->pipe); -+ } -+ -+ if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { -+ epid_data = IO_STATE(R_USB_EPT_DATA_ISO, valid, yes) | -+ /* FIXME: Change any to the actual port? */ -+ IO_STATE(R_USB_EPT_DATA_ISO, port, any) | -+ IO_FIELD(R_USB_EPT_DATA_ISO, max_len, maxlen) | -+ IO_FIELD(R_USB_EPT_DATA_ISO, ep, endpoint) | -+ IO_FIELD(R_USB_EPT_DATA_ISO, dev, devnum); -+ etrax_epid_iso_set(epid, epid_data); -+ } else { -+ epid_data = IO_STATE(R_USB_EPT_DATA, valid, yes) | -+ IO_FIELD(R_USB_EPT_DATA, low_speed, slow) | -+ /* FIXME: Change any to the actual port? */ -+ IO_STATE(R_USB_EPT_DATA, port, any) | -+ IO_FIELD(R_USB_EPT_DATA, max_len, maxlen) | -+ IO_FIELD(R_USB_EPT_DATA, ep, endpoint) | -+ IO_FIELD(R_USB_EPT_DATA, dev, devnum); -+ etrax_epid_set(epid, epid_data); -+ } -+ -+ epid_state[epid].out_traffic = out_traffic; -+ epid_state[epid].type = usb_pipetype(urb->pipe); -+ -+ tc_warn("Setting up ep:0x%x epid:%d (addr:%d endp:%d max_len:%d %s %s %s)\n", -+ (unsigned int)ep, epid, devnum, endpoint, maxlen, -+ str_type(urb->pipe), out_traffic ? "out" : "in", -+ slow ? "low" : "full"); -+ -+ /* Enable Isoc eof interrupt if we set up the first Isoc epid */ -+ if(usb_pipeisoc(urb->pipe)) { -+ isoc_epid_counter++; -+ if(isoc_epid_counter == 1) { -+ isoc_warn("Enabled Isoc eof interrupt\n"); -+ *R_USB_IRQ_MASK_SET |= IO_STATE(R_USB_IRQ_MASK_SET, iso_eof, set); -+ } -+ } -+ -+ DBFEXIT; -+ return epid; -+} -+ -+static void tc_free_epid(struct usb_host_endpoint *ep) { -+ unsigned long flags; -+ struct crisv10_ep_priv *ep_priv = ep->hcpriv; -+ int epid; -+ volatile int timeout = 10000; -+ -+ DBFENTER; -+ -+ if (ep_priv == NULL) { -+ tc_warn("Trying to free unused epid on ep:0x%x\n", (unsigned int)ep); -+ DBFEXIT; -+ return; -+ } -+ -+ epid = ep_priv->epid; -+ -+ /* Disable Isoc eof interrupt if we free the last Isoc epid */ -+ if(epid_isoc(epid)) { -+ ASSERT(isoc_epid_counter > 0); -+ isoc_epid_counter--; -+ if(isoc_epid_counter == 0) { -+ *R_USB_IRQ_MASK_SET &= ~IO_STATE(R_USB_IRQ_MASK_SET, iso_eof, set); -+ isoc_warn("Disabled Isoc eof interrupt\n"); -+ } -+ } -+ -+ /* Take lock manualy instead of in epid_x_x wrappers, -+ because we need to be polling here */ -+ spin_lock_irqsave(&etrax_epid_lock, flags); -+ -+ *R_USB_EPT_INDEX = IO_FIELD(R_USB_EPT_INDEX, value, epid); -+ nop(); -+ while((*R_USB_EPT_DATA & IO_MASK(R_USB_EPT_DATA, hold)) && -+ (timeout-- > 0)); -+ if(timeout == 0) { -+ warn("Timeout while waiting for epid:%d to drop hold\n", epid); -+ } -+ /* This will, among other things, set the valid field to 0. */ -+ *R_USB_EPT_DATA = 0; -+ spin_unlock_irqrestore(&etrax_epid_lock, flags); -+ -+ /* Free resource in software state info list */ -+ epid_state[epid].inuse = 0; -+ -+ /* Free private endpoint data */ -+ ep_priv_free(ep); -+ -+ DBFEXIT; -+} -+ -+static int tc_allocate_epid(void) { -+ int i; -+ DBFENTER; -+ for (i = 0; i < NBR_OF_EPIDS; i++) { -+ if (!epid_inuse(i)) { -+ DBFEXIT; -+ return i; -+ } -+ } -+ -+ tc_warn("Found no free epids\n"); -+ DBFEXIT; -+ return -1; -+} -+ -+ -+/* Wrappers around the list functions (include/linux/list.h). */ -+/* ---------------------------------------------------------- */ -+static inline int __urb_list_empty(int epid) { -+ int retval; -+ retval = list_empty(&urb_list[epid]); -+ return retval; -+} -+ -+/* Returns first urb for this epid, or NULL if list is empty. */ -+static inline struct urb *urb_list_first(int epid) { -+ unsigned long flags; -+ struct urb *first_urb = 0; -+ spin_lock_irqsave(&urb_list_lock, flags); -+ if (!__urb_list_empty(epid)) { -+ /* Get the first urb (i.e. head->next). */ -+ urb_entry_t *urb_entry = list_entry((&urb_list[epid])->next, urb_entry_t, list); -+ first_urb = urb_entry->urb; -+ } -+ spin_unlock_irqrestore(&urb_list_lock, flags); -+ return first_urb; -+} -+ -+/* Adds an urb_entry last in the list for this epid. */ -+static inline void urb_list_add(struct urb *urb, int epid, int mem_flags) { -+ unsigned long flags; -+ urb_entry_t *urb_entry = (urb_entry_t *)kmalloc(sizeof(urb_entry_t), mem_flags); -+ ASSERT(urb_entry); -+ -+ urb_entry->urb = urb; -+ spin_lock_irqsave(&urb_list_lock, flags); -+ list_add_tail(&urb_entry->list, &urb_list[epid]); -+ spin_unlock_irqrestore(&urb_list_lock, flags); -+} -+ -+/* Search through the list for an element that contains this urb. (The list -+ is expected to be short and the one we are about to delete will often be -+ the first in the list.) -+ Should be protected by spin_locks in calling function */ -+static inline urb_entry_t *__urb_list_entry(struct urb *urb, int epid) { -+ struct list_head *entry; -+ struct list_head *tmp; -+ urb_entry_t *urb_entry; -+ -+ list_for_each_safe(entry, tmp, &urb_list[epid]) { -+ urb_entry = list_entry(entry, urb_entry_t, list); -+ ASSERT(urb_entry); -+ ASSERT(urb_entry->urb); -+ -+ if (urb_entry->urb == urb) { -+ return urb_entry; -+ } -+ } -+ return 0; -+} -+ -+/* Same function as above but for global use. Protects list by spinlock */ -+static inline urb_entry_t *urb_list_entry(struct urb *urb, int epid) { -+ unsigned long flags; -+ urb_entry_t *urb_entry; -+ spin_lock_irqsave(&urb_list_lock, flags); -+ urb_entry = __urb_list_entry(urb, epid); -+ spin_unlock_irqrestore(&urb_list_lock, flags); -+ return (urb_entry); -+} -+ -+/* Delete an urb from the list. */ -+static inline void urb_list_del(struct urb *urb, int epid) { -+ unsigned long flags; -+ urb_entry_t *urb_entry; -+ -+ /* Delete entry and free. */ -+ spin_lock_irqsave(&urb_list_lock, flags); -+ urb_entry = __urb_list_entry(urb, epid); -+ ASSERT(urb_entry); -+ -+ list_del(&urb_entry->list); -+ spin_unlock_irqrestore(&urb_list_lock, flags); -+ kfree(urb_entry); -+} -+ -+/* Move an urb to the end of the list. */ -+static inline void urb_list_move_last(struct urb *urb, int epid) { -+ unsigned long flags; -+ urb_entry_t *urb_entry; -+ -+ spin_lock_irqsave(&urb_list_lock, flags); -+ urb_entry = __urb_list_entry(urb, epid); -+ ASSERT(urb_entry); -+ -+ list_del(&urb_entry->list); -+ list_add_tail(&urb_entry->list, &urb_list[epid]); -+ spin_unlock_irqrestore(&urb_list_lock, flags); -+} -+ -+/* Get the next urb in the list. */ -+static inline struct urb *urb_list_next(struct urb *urb, int epid) { -+ unsigned long flags; -+ urb_entry_t *urb_entry; -+ -+ spin_lock_irqsave(&urb_list_lock, flags); -+ urb_entry = __urb_list_entry(urb, epid); -+ ASSERT(urb_entry); -+ -+ if (urb_entry->list.next != &urb_list[epid]) { -+ struct list_head *elem = urb_entry->list.next; -+ urb_entry = list_entry(elem, urb_entry_t, list); -+ spin_unlock_irqrestore(&urb_list_lock, flags); -+ return urb_entry->urb; -+ } else { -+ spin_unlock_irqrestore(&urb_list_lock, flags); -+ return NULL; -+ } -+} -+ -+struct USB_EP_Desc* create_ep(int epid, struct USB_SB_Desc* sb_desc, -+ int mem_flags) { -+ struct USB_EP_Desc *ep_desc; -+ ep_desc = (struct USB_EP_Desc *) kmem_cache_alloc(usb_desc_cache, mem_flags); -+ if(ep_desc == NULL) -+ return NULL; -+ memset(ep_desc, 0, sizeof(struct USB_EP_Desc)); -+ -+ ep_desc->hw_len = 0; -+ ep_desc->command = (IO_FIELD(USB_EP_command, epid, epid) | -+ IO_STATE(USB_EP_command, enable, yes)); -+ if(sb_desc == NULL) { -+ ep_desc->sub = 0; -+ } else { -+ ep_desc->sub = virt_to_phys(sb_desc); -+ } -+ return ep_desc; -+} -+ -+#define TT_ZOUT 0 -+#define TT_IN 1 -+#define TT_OUT 2 -+#define TT_SETUP 3 -+ -+#define CMD_EOL IO_STATE(USB_SB_command, eol, yes) -+#define CMD_INTR IO_STATE(USB_SB_command, intr, yes) -+#define CMD_FULL IO_STATE(USB_SB_command, full, yes) -+ -+/* Allocation and setup of a generic SB. Used to create SETUP, OUT and ZOUT -+ SBs. Also used by create_sb_in() to avoid same allocation procedure at two -+ places */ -+struct USB_SB_Desc* create_sb(struct USB_SB_Desc* sb_prev, int tt, void* data, -+ int datalen, int mem_flags) { -+ struct USB_SB_Desc *sb_desc; -+ sb_desc = (struct USB_SB_Desc*)kmem_cache_alloc(usb_desc_cache, mem_flags); -+ if(sb_desc == NULL) -+ return NULL; -+ memset(sb_desc, 0, sizeof(struct USB_SB_Desc)); -+ -+ sb_desc->command = IO_FIELD(USB_SB_command, tt, tt) | -+ IO_STATE(USB_SB_command, eot, yes); -+ -+ sb_desc->sw_len = datalen; -+ if(data != NULL) { -+ sb_desc->buf = virt_to_phys(data); -+ } else { -+ sb_desc->buf = 0; -+ } -+ if(sb_prev != NULL) { -+ sb_prev->next = virt_to_phys(sb_desc); -+ } -+ return sb_desc; -+} -+ -+/* Creates a copy of an existing SB by allocation space for it and copy -+ settings */ -+struct USB_SB_Desc* create_sb_copy(struct USB_SB_Desc* sb_orig, int mem_flags) { -+ struct USB_SB_Desc *sb_desc; -+ sb_desc = (struct USB_SB_Desc*)kmem_cache_alloc(usb_desc_cache, mem_flags); -+ if(sb_desc == NULL) -+ return NULL; -+ -+ memcpy(sb_desc, sb_orig, sizeof(struct USB_SB_Desc)); -+ return sb_desc; -+} -+ -+/* A specific create_sb function for creation of in SBs. This is due to -+ that datalen in In SBs shows how many packets we are expecting. It also -+ sets up the rem field to show if how many bytes we expect in last packet -+ if it's not a full one */ -+struct USB_SB_Desc* create_sb_in(struct USB_SB_Desc* sb_prev, int datalen, -+ int maxlen, int mem_flags) { -+ struct USB_SB_Desc *sb_desc; -+ sb_desc = create_sb(sb_prev, TT_IN, NULL, -+ datalen ? (datalen - 1) / maxlen + 1 : 0, mem_flags); -+ if(sb_desc == NULL) -+ return NULL; -+ sb_desc->command |= IO_FIELD(USB_SB_command, rem, datalen % maxlen); -+ return sb_desc; -+} -+ -+void set_sb_cmds(struct USB_SB_Desc *sb_desc, __u16 flags) { -+ sb_desc->command |= flags; -+} -+ -+int create_sb_for_urb(struct urb *urb, int mem_flags) { -+ int is_out = !usb_pipein(urb->pipe); -+ int type = usb_pipetype(urb->pipe); -+ int maxlen = usb_maxpacket(urb->dev, urb->pipe, is_out); -+ int buf_len = urb->transfer_buffer_length; -+ void *buf = buf_len > 0 ? urb->transfer_buffer : NULL; -+ struct USB_SB_Desc *sb_desc = NULL; -+ -+ struct crisv10_urb_priv *urb_priv = (struct crisv10_urb_priv *)urb->hcpriv; -+ ASSERT(urb_priv != NULL); -+ -+ switch(type) { -+ case PIPE_CONTROL: -+ /* Setup stage */ -+ sb_desc = create_sb(NULL, TT_SETUP, urb->setup_packet, 8, mem_flags); -+ if(sb_desc == NULL) -+ return -ENOMEM; -+ set_sb_cmds(sb_desc, CMD_FULL); -+ -+ /* Attach first SB to URB */ -+ urb_priv->first_sb = sb_desc; -+ -+ if (is_out) { /* Out Control URB */ -+ /* If this Control OUT transfer has an optional data stage we add -+ an OUT token before the mandatory IN (status) token */ -+ if ((buf_len > 0) && buf) { -+ sb_desc = create_sb(sb_desc, TT_OUT, buf, buf_len, mem_flags); -+ if(sb_desc == NULL) -+ return -ENOMEM; -+ set_sb_cmds(sb_desc, CMD_FULL); -+ } -+ -+ /* Status stage */ -+ /* The data length has to be exactly 1. This is due to a requirement -+ of the USB specification that a host must be prepared to receive -+ data in the status phase */ -+ sb_desc = create_sb(sb_desc, TT_IN, NULL, 1, mem_flags); -+ if(sb_desc == NULL) -+ return -ENOMEM; -+ } else { /* In control URB */ -+ /* Data stage */ -+ sb_desc = create_sb_in(sb_desc, buf_len, maxlen, mem_flags); -+ if(sb_desc == NULL) -+ return -ENOMEM; -+ -+ /* Status stage */ -+ /* Read comment at zout_buffer declaration for an explanation to this. */ -+ sb_desc = create_sb(sb_desc, TT_ZOUT, &zout_buffer[0], 1, mem_flags); -+ if(sb_desc == NULL) -+ return -ENOMEM; -+ /* Set descriptor interrupt flag for in URBs so we can finish URB after -+ zout-packet has been sent */ -+ set_sb_cmds(sb_desc, CMD_INTR | CMD_FULL); -+ } -+ /* Set end-of-list flag in last SB */ -+ set_sb_cmds(sb_desc, CMD_EOL); -+ /* Attach last SB to URB */ -+ urb_priv->last_sb = sb_desc; -+ break; -+ -+ case PIPE_BULK: -+ if (is_out) { /* Out Bulk URB */ -+ sb_desc = create_sb(NULL, TT_OUT, buf, buf_len, mem_flags); -+ if(sb_desc == NULL) -+ return -ENOMEM; -+ /* The full field is set to yes, even if we don't actually check that -+ this is a full-length transfer (i.e., that transfer_buffer_length % -+ maxlen = 0). -+ Setting full prevents the USB controller from sending an empty packet -+ in that case. However, if URB_ZERO_PACKET was set we want that. */ -+ if (!(urb->transfer_flags & URB_ZERO_PACKET)) { -+ set_sb_cmds(sb_desc, CMD_FULL); -+ } -+ } else { /* In Bulk URB */ -+ sb_desc = create_sb_in(NULL, buf_len, maxlen, mem_flags); -+ if(sb_desc == NULL) -+ return -ENOMEM; -+ } -+ /* Set end-of-list flag for last SB */ -+ set_sb_cmds(sb_desc, CMD_EOL); -+ -+ /* Attach SB to URB */ -+ urb_priv->first_sb = sb_desc; -+ urb_priv->last_sb = sb_desc; -+ break; -+ -+ case PIPE_INTERRUPT: -+ if(is_out) { /* Out Intr URB */ -+ sb_desc = create_sb(NULL, TT_OUT, buf, buf_len, mem_flags); -+ if(sb_desc == NULL) -+ return -ENOMEM; -+ -+ /* The full field is set to yes, even if we don't actually check that -+ this is a full-length transfer (i.e., that transfer_buffer_length % -+ maxlen = 0). -+ Setting full prevents the USB controller from sending an empty packet -+ in that case. However, if URB_ZERO_PACKET was set we want that. */ -+ if (!(urb->transfer_flags & URB_ZERO_PACKET)) { -+ set_sb_cmds(sb_desc, CMD_FULL); -+ } -+ /* Only generate TX interrupt if it's a Out URB*/ -+ set_sb_cmds(sb_desc, CMD_INTR); -+ -+ } else { /* In Intr URB */ -+ sb_desc = create_sb_in(NULL, buf_len, maxlen, mem_flags); -+ if(sb_desc == NULL) -+ return -ENOMEM; -+ } -+ /* Set end-of-list flag for last SB */ -+ set_sb_cmds(sb_desc, CMD_EOL); -+ -+ /* Attach SB to URB */ -+ urb_priv->first_sb = sb_desc; -+ urb_priv->last_sb = sb_desc; -+ -+ break; -+ case PIPE_ISOCHRONOUS: -+ if(is_out) { /* Out Isoc URB */ -+ int i; -+ if(urb->number_of_packets == 0) { -+ tc_err("Can't create SBs for Isoc URB with zero packets\n"); -+ return -EPIPE; -+ } -+ /* Create one SB descriptor for each packet and link them together. */ -+ for(i = 0; i < urb->number_of_packets; i++) { -+ if (urb->iso_frame_desc[i].length > 0) { -+ -+ sb_desc = create_sb(sb_desc, TT_OUT, urb->transfer_buffer + -+ urb->iso_frame_desc[i].offset, -+ urb->iso_frame_desc[i].length, mem_flags); -+ if(sb_desc == NULL) -+ return -ENOMEM; -+ -+ /* Check if it's a full length packet */ -+ if (urb->iso_frame_desc[i].length == -+ usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe))) { -+ set_sb_cmds(sb_desc, CMD_FULL); -+ } -+ -+ } else { /* zero length packet */ -+ sb_desc = create_sb(sb_desc, TT_ZOUT, &zout_buffer[0], 1, mem_flags); -+ if(sb_desc == NULL) -+ return -ENOMEM; -+ set_sb_cmds(sb_desc, CMD_FULL); -+ } -+ /* Attach first SB descriptor to URB */ -+ if (i == 0) { -+ urb_priv->first_sb = sb_desc; -+ } -+ } -+ /* Set interrupt and end-of-list flags in last SB */ -+ set_sb_cmds(sb_desc, CMD_INTR | CMD_EOL); -+ /* Attach last SB descriptor to URB */ -+ urb_priv->last_sb = sb_desc; -+ tc_dbg("Created %d out SBs for Isoc URB:0x%x\n", -+ urb->number_of_packets, (unsigned int)urb); -+ } else { /* In Isoc URB */ -+ /* Actual number of packets is not relevant for periodic in traffic as -+ long as it is more than zero. Set to 1 always. */ -+ sb_desc = create_sb(sb_desc, TT_IN, NULL, 1, mem_flags); -+ if(sb_desc == NULL) -+ return -ENOMEM; -+ /* Set end-of-list flags for SB */ -+ set_sb_cmds(sb_desc, CMD_EOL); -+ -+ /* Attach SB to URB */ -+ urb_priv->first_sb = sb_desc; -+ urb_priv->last_sb = sb_desc; -+ } -+ break; -+ default: -+ tc_err("Unknown pipe-type\n"); -+ return -EPIPE; -+ break; -+ } -+ return 0; -+} -+ -+int init_intr_urb(struct urb *urb, int mem_flags) { -+ struct crisv10_urb_priv *urb_priv = (struct crisv10_urb_priv *)urb->hcpriv; -+ struct USB_EP_Desc* ep_desc; -+ int interval; -+ int i; -+ int ep_count; -+ -+ ASSERT(urb_priv != NULL); -+ ASSERT(usb_pipeint(urb->pipe)); -+ /* We can't support interval longer than amount of eof descriptors in -+ TxIntrEPList */ -+ if(urb->interval > MAX_INTR_INTERVAL) { -+ tc_err("Interrupt interval %dms too big (max: %dms)\n", urb->interval, -+ MAX_INTR_INTERVAL); -+ return -EINVAL; -+ } -+ -+ /* We assume that the SB descriptors already have been setup */ -+ ASSERT(urb_priv->first_sb != NULL); -+ -+ /* Round of the interval to 2^n, it is obvious that this code favours -+ smaller numbers, but that is actually a good thing */ -+ /* FIXME: The "rounding error" for larger intervals will be quite -+ large. For in traffic this shouldn't be a problem since it will only -+ mean that we "poll" more often. */ -+ interval = urb->interval; -+ for (i = 0; interval; i++) { -+ interval = interval >> 1; -+ } -+ urb_priv->interval = 1 << (i - 1); -+ -+ /* We can only have max interval for Out Interrupt due to that we can only -+ handle one linked in EP for a certain epid in the Intr descr array at the -+ time. The USB Controller in the Etrax 100LX continues to process Intr EPs -+ so we have no way of knowing which one that caused the actual transfer if -+ we have several linked in. */ -+ if(usb_pipeout(urb->pipe)) { -+ urb_priv->interval = MAX_INTR_INTERVAL; -+ } -+ -+ /* Calculate amount of EPs needed */ -+ ep_count = MAX_INTR_INTERVAL / urb_priv->interval; -+ -+ for(i = 0; i < ep_count; i++) { -+ ep_desc = create_ep(urb_priv->epid, urb_priv->first_sb, mem_flags); -+ if(ep_desc == NULL) { -+ /* Free any descriptors that we may have allocated before failure */ -+ while(i > 0) { -+ i--; -+ kfree(urb_priv->intr_ep_pool[i]); -+ } -+ return -ENOMEM; -+ } -+ urb_priv->intr_ep_pool[i] = ep_desc; -+ } -+ urb_priv->intr_ep_pool_length = ep_count; -+ return 0; -+} -+ -+/* DMA RX/TX functions */ -+/* ----------------------- */ -+ -+static void tc_dma_init_rx_list(void) { -+ int i; -+ -+ /* Setup descriptor list except last one */ -+ for (i = 0; i < (NBR_OF_RX_DESC - 1); i++) { -+ RxDescList[i].sw_len = RX_DESC_BUF_SIZE; -+ RxDescList[i].command = 0; -+ RxDescList[i].next = virt_to_phys(&RxDescList[i + 1]); -+ RxDescList[i].buf = virt_to_phys(RxBuf + (i * RX_DESC_BUF_SIZE)); -+ RxDescList[i].hw_len = 0; -+ RxDescList[i].status = 0; -+ -+ /* DMA IN cache bug. (struct etrax_dma_descr has the same layout as -+ USB_IN_Desc for the relevant fields.) */ -+ prepare_rx_descriptor((struct etrax_dma_descr*)&RxDescList[i]); -+ -+ } -+ /* Special handling of last descriptor */ -+ RxDescList[i].sw_len = RX_DESC_BUF_SIZE; -+ RxDescList[i].command = IO_STATE(USB_IN_command, eol, yes); -+ RxDescList[i].next = virt_to_phys(&RxDescList[0]); -+ RxDescList[i].buf = virt_to_phys(RxBuf + (i * RX_DESC_BUF_SIZE)); -+ RxDescList[i].hw_len = 0; -+ RxDescList[i].status = 0; -+ -+ /* Setup list pointers that show progress in list */ -+ myNextRxDesc = &RxDescList[0]; -+ myLastRxDesc = &RxDescList[NBR_OF_RX_DESC - 1]; -+ -+ flush_etrax_cache(); -+ /* Point DMA to first descriptor in list and start it */ -+ *R_DMA_CH9_FIRST = virt_to_phys(myNextRxDesc); -+ *R_DMA_CH9_CMD = IO_STATE(R_DMA_CH9_CMD, cmd, start); -+} -+ -+ -+static void tc_dma_init_tx_bulk_list(void) { -+ int i; -+ volatile struct USB_EP_Desc *epDescr; -+ -+ for (i = 0; i < (NBR_OF_EPIDS - 1); i++) { -+ epDescr = &(TxBulkEPList[i]); -+ CHECK_ALIGN(epDescr); -+ epDescr->hw_len = 0; -+ epDescr->command = IO_FIELD(USB_EP_command, epid, i); -+ epDescr->sub = 0; -+ epDescr->next = virt_to_phys(&TxBulkEPList[i + 1]); -+ -+ /* Initiate two EPs, disabled and with the eol flag set. No need for any -+ preserved epid. */ -+ -+ /* The first one has the intr flag set so we get an interrupt when the DMA -+ channel is about to become disabled. */ -+ CHECK_ALIGN(&TxBulkDummyEPList[i][0]); -+ TxBulkDummyEPList[i][0].hw_len = 0; -+ TxBulkDummyEPList[i][0].command = (IO_FIELD(USB_EP_command, epid, DUMMY_EPID) | -+ IO_STATE(USB_EP_command, eol, yes) | -+ IO_STATE(USB_EP_command, intr, yes)); -+ TxBulkDummyEPList[i][0].sub = 0; -+ TxBulkDummyEPList[i][0].next = virt_to_phys(&TxBulkDummyEPList[i][1]); -+ -+ /* The second one. */ -+ CHECK_ALIGN(&TxBulkDummyEPList[i][1]); -+ TxBulkDummyEPList[i][1].hw_len = 0; -+ TxBulkDummyEPList[i][1].command = (IO_FIELD(USB_EP_command, epid, DUMMY_EPID) | -+ IO_STATE(USB_EP_command, eol, yes)); -+ TxBulkDummyEPList[i][1].sub = 0; -+ /* The last dummy's next pointer is the same as the current EP's next pointer. */ -+ TxBulkDummyEPList[i][1].next = virt_to_phys(&TxBulkEPList[i + 1]); -+ } -+ -+ /* Special handling of last descr in list, make list circular */ -+ epDescr = &TxBulkEPList[i]; -+ CHECK_ALIGN(epDescr); -+ epDescr->hw_len = 0; -+ epDescr->command = IO_STATE(USB_EP_command, eol, yes) | -+ IO_FIELD(USB_EP_command, epid, i); -+ epDescr->sub = 0; -+ epDescr->next = virt_to_phys(&TxBulkEPList[0]); -+ -+ /* Init DMA sub-channel pointers to last item in each list */ -+ *R_DMA_CH8_SUB0_EP = virt_to_phys(&TxBulkEPList[i]); -+ /* No point in starting the bulk channel yet. -+ *R_DMA_CH8_SUB0_CMD = IO_STATE(R_DMA_CH8_SUB0_CMD, cmd, start); */ -+} -+ -+static void tc_dma_init_tx_ctrl_list(void) { -+ int i; -+ volatile struct USB_EP_Desc *epDescr; -+ -+ for (i = 0; i < (NBR_OF_EPIDS - 1); i++) { -+ epDescr = &(TxCtrlEPList[i]); -+ CHECK_ALIGN(epDescr); -+ epDescr->hw_len = 0; -+ epDescr->command = IO_FIELD(USB_EP_command, epid, i); -+ epDescr->sub = 0; -+ epDescr->next = virt_to_phys(&TxCtrlEPList[i + 1]); -+ } -+ /* Special handling of last descr in list, make list circular */ -+ epDescr = &TxCtrlEPList[i]; -+ CHECK_ALIGN(epDescr); -+ epDescr->hw_len = 0; -+ epDescr->command = IO_STATE(USB_EP_command, eol, yes) | -+ IO_FIELD(USB_EP_command, epid, i); -+ epDescr->sub = 0; -+ epDescr->next = virt_to_phys(&TxCtrlEPList[0]); -+ -+ /* Init DMA sub-channel pointers to last item in each list */ -+ *R_DMA_CH8_SUB1_EP = virt_to_phys(&TxCtrlEPList[i]); -+ /* No point in starting the ctrl channel yet. -+ *R_DMA_CH8_SUB1_CMD = IO_STATE(R_DMA_CH8_SUB0_CMD, cmd, start); */ -+} -+ -+ -+static void tc_dma_init_tx_intr_list(void) { -+ int i; -+ -+ TxIntrSB_zout.sw_len = 1; -+ TxIntrSB_zout.next = 0; -+ TxIntrSB_zout.buf = virt_to_phys(&zout_buffer[0]); -+ TxIntrSB_zout.command = (IO_FIELD(USB_SB_command, rem, 0) | -+ IO_STATE(USB_SB_command, tt, zout) | -+ IO_STATE(USB_SB_command, full, yes) | -+ IO_STATE(USB_SB_command, eot, yes) | -+ IO_STATE(USB_SB_command, eol, yes)); -+ -+ for (i = 0; i < (MAX_INTR_INTERVAL - 1); i++) { -+ CHECK_ALIGN(&TxIntrEPList[i]); -+ TxIntrEPList[i].hw_len = 0; -+ TxIntrEPList[i].command = -+ (IO_STATE(USB_EP_command, eof, yes) | -+ IO_STATE(USB_EP_command, enable, yes) | -+ IO_FIELD(USB_EP_command, epid, INVALID_EPID)); -+ TxIntrEPList[i].sub = virt_to_phys(&TxIntrSB_zout); -+ TxIntrEPList[i].next = virt_to_phys(&TxIntrEPList[i + 1]); -+ } -+ -+ /* Special handling of last descr in list, make list circular */ -+ CHECK_ALIGN(&TxIntrEPList[i]); -+ TxIntrEPList[i].hw_len = 0; -+ TxIntrEPList[i].command = -+ (IO_STATE(USB_EP_command, eof, yes) | -+ IO_STATE(USB_EP_command, eol, yes) | -+ IO_STATE(USB_EP_command, enable, yes) | -+ IO_FIELD(USB_EP_command, epid, INVALID_EPID)); -+ TxIntrEPList[i].sub = virt_to_phys(&TxIntrSB_zout); -+ TxIntrEPList[i].next = virt_to_phys(&TxIntrEPList[0]); -+ -+ intr_dbg("Initiated Intr EP descriptor list\n"); -+ -+ -+ /* Connect DMA 8 sub-channel 2 to first in list */ -+ *R_DMA_CH8_SUB2_EP = virt_to_phys(&TxIntrEPList[0]); -+} -+ -+static void tc_dma_init_tx_isoc_list(void) { -+ int i; -+ -+ DBFENTER; -+ -+ /* Read comment at zout_buffer declaration for an explanation to this. */ -+ TxIsocSB_zout.sw_len = 1; -+ TxIsocSB_zout.next = 0; -+ TxIsocSB_zout.buf = virt_to_phys(&zout_buffer[0]); -+ TxIsocSB_zout.command = (IO_FIELD(USB_SB_command, rem, 0) | -+ IO_STATE(USB_SB_command, tt, zout) | -+ IO_STATE(USB_SB_command, full, yes) | -+ IO_STATE(USB_SB_command, eot, yes) | -+ IO_STATE(USB_SB_command, eol, yes)); -+ -+ /* The last isochronous EP descriptor is a dummy. */ -+ for (i = 0; i < (NBR_OF_EPIDS - 1); i++) { -+ CHECK_ALIGN(&TxIsocEPList[i]); -+ TxIsocEPList[i].hw_len = 0; -+ TxIsocEPList[i].command = IO_FIELD(USB_EP_command, epid, i); -+ TxIsocEPList[i].sub = 0; -+ TxIsocEPList[i].next = virt_to_phys(&TxIsocEPList[i + 1]); -+ } -+ -+ CHECK_ALIGN(&TxIsocEPList[i]); -+ TxIsocEPList[i].hw_len = 0; -+ -+ /* Must enable the last EP descr to get eof interrupt. */ -+ TxIsocEPList[i].command = (IO_STATE(USB_EP_command, enable, yes) | -+ IO_STATE(USB_EP_command, eof, yes) | -+ IO_STATE(USB_EP_command, eol, yes) | -+ IO_FIELD(USB_EP_command, epid, INVALID_EPID)); -+ TxIsocEPList[i].sub = virt_to_phys(&TxIsocSB_zout); -+ TxIsocEPList[i].next = virt_to_phys(&TxIsocEPList[0]); -+ -+ *R_DMA_CH8_SUB3_EP = virt_to_phys(&TxIsocEPList[0]); -+ *R_DMA_CH8_SUB3_CMD = IO_STATE(R_DMA_CH8_SUB3_CMD, cmd, start); -+} -+ -+static int tc_dma_init(struct usb_hcd *hcd) { -+ tc_dma_init_rx_list(); -+ tc_dma_init_tx_bulk_list(); -+ tc_dma_init_tx_ctrl_list(); -+ tc_dma_init_tx_intr_list(); -+ tc_dma_init_tx_isoc_list(); -+ -+ if (cris_request_dma(USB_TX_DMA_NBR, -+ "ETRAX 100LX built-in USB (Tx)", -+ DMA_VERBOSE_ON_ERROR, -+ dma_usb)) { -+ err("Could not allocate DMA ch 8 for USB"); -+ return -EBUSY; -+ } -+ -+ if (cris_request_dma(USB_RX_DMA_NBR, -+ "ETRAX 100LX built-in USB (Rx)", -+ DMA_VERBOSE_ON_ERROR, -+ dma_usb)) { -+ err("Could not allocate DMA ch 9 for USB"); -+ return -EBUSY; -+ } -+ -+ *R_IRQ_MASK2_SET = -+ /* Note that these interrupts are not used. */ -+ IO_STATE(R_IRQ_MASK2_SET, dma8_sub0_descr, set) | -+ /* Sub channel 1 (ctrl) descr. interrupts are used. */ -+ IO_STATE(R_IRQ_MASK2_SET, dma8_sub1_descr, set) | -+ IO_STATE(R_IRQ_MASK2_SET, dma8_sub2_descr, set) | -+ /* Sub channel 3 (isoc) descr. interrupts are used. */ -+ IO_STATE(R_IRQ_MASK2_SET, dma8_sub3_descr, set); -+ -+ /* Note that the dma9_descr interrupt is not used. */ -+ *R_IRQ_MASK2_SET = -+ IO_STATE(R_IRQ_MASK2_SET, dma9_eop, set) | -+ IO_STATE(R_IRQ_MASK2_SET, dma9_descr, set); -+ -+ if (request_irq(ETRAX_USB_RX_IRQ, tc_dma_rx_interrupt, 0, -+ "ETRAX 100LX built-in USB (Rx)", hcd)) { -+ err("Could not allocate IRQ %d for USB", ETRAX_USB_RX_IRQ); -+ return -EBUSY; -+ } -+ -+ if (request_irq(ETRAX_USB_TX_IRQ, tc_dma_tx_interrupt, 0, -+ "ETRAX 100LX built-in USB (Tx)", hcd)) { -+ err("Could not allocate IRQ %d for USB", ETRAX_USB_TX_IRQ); -+ return -EBUSY; -+ } -+ -+ return 0; -+} -+ -+static void tc_dma_destroy(void) { -+ free_irq(ETRAX_USB_RX_IRQ, NULL); -+ free_irq(ETRAX_USB_TX_IRQ, NULL); -+ -+ cris_free_dma(USB_TX_DMA_NBR, "ETRAX 100LX built-in USB (Tx)"); -+ cris_free_dma(USB_RX_DMA_NBR, "ETRAX 100LX built-in USB (Rx)"); -+ -+} -+ -+static void tc_dma_link_intr_urb(struct urb *urb); -+ -+/* Handle processing of Bulk, Ctrl and Intr queues */ -+static void tc_dma_process_queue(int epid) { -+ struct urb *urb; -+ struct crisv10_urb_priv *urb_priv = urb->hcpriv; -+ unsigned long flags; -+ char toggle; -+ -+ if(epid_state[epid].disabled) { -+ /* Don't process any URBs on a disabled endpoint */ -+ return; -+ } -+ -+ /* Do not disturb us while fiddling with EPs and epids */ -+ local_irq_save(flags); -+ -+ /* For bulk, Ctrl and Intr can we only have one URB active at a time for -+ a specific EP. */ -+ if(activeUrbList[epid] != NULL) { -+ /* An URB is already active on EP, skip checking queue */ -+ local_irq_restore(flags); -+ return; -+ } -+ -+ urb = urb_list_first(epid); -+ if(urb == NULL) { -+ /* No URB waiting in EP queue. Nothing do to */ -+ local_irq_restore(flags); -+ return; -+ } -+ -+ urb_priv = urb->hcpriv; -+ ASSERT(urb_priv != NULL); -+ ASSERT(urb_priv->urb_state == NOT_STARTED); -+ ASSERT(!usb_pipeisoc(urb->pipe)); -+ -+ /* Remove this URB from the queue and move it to active */ -+ activeUrbList[epid] = urb; -+ urb_list_del(urb, epid); -+ -+ urb_priv->urb_state = STARTED; -+ -+ /* Reset error counters (regardless of which direction this traffic is). */ -+ etrax_epid_clear_error(epid); -+ -+ /* Special handling of Intr EP lists */ -+ if(usb_pipeint(urb->pipe)) { -+ tc_dma_link_intr_urb(urb); -+ local_irq_restore(flags); -+ return; -+ } -+ -+ /* Software must preset the toggle bits for Bulk and Ctrl */ -+ if(usb_pipecontrol(urb->pipe)) { -+ /* Toggle bits are initialized only during setup transaction in a -+ CTRL transfer */ -+ etrax_epid_set_toggle(epid, 0, 0); -+ etrax_epid_set_toggle(epid, 1, 0); -+ } else { -+ toggle = usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), -+ usb_pipeout(urb->pipe)); -+ etrax_epid_set_toggle(epid, usb_pipeout(urb->pipe), toggle); -+ } -+ -+ tc_dbg("Added SBs from (URB:0x%x %s %s) to epid %d: %s\n", -+ (unsigned int)urb, str_dir(urb->pipe), str_type(urb->pipe), epid, -+ sblist_to_str(urb_priv->first_sb)); -+ -+ /* We start the DMA sub channel without checking if it's running or not, -+ because: -+ 1) If it's already running, issuing the start command is a nop. -+ 2) We avoid a test-and-set race condition. */ -+ switch(usb_pipetype(urb->pipe)) { -+ case PIPE_BULK: -+ /* Assert that the EP descriptor is disabled. */ -+ ASSERT(!(TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable))); -+ -+ /* Set up and enable the EP descriptor. */ -+ TxBulkEPList[epid].sub = virt_to_phys(urb_priv->first_sb); -+ TxBulkEPList[epid].hw_len = 0; -+ TxBulkEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes); -+ -+ /* Check if the dummy list is already with us (if several urbs were queued). */ -+ if (usb_pipein(urb->pipe) && (TxBulkEPList[epid].next != virt_to_phys(&TxBulkDummyEPList[epid][0]))) { -+ tc_dbg("Inviting dummy list to the party for urb 0x%lx, epid %d", -+ (unsigned long)urb, epid); -+ -+ /* We don't need to check if the DMA is at this EP or not before changing the -+ next pointer, since we will do it in one 32-bit write (EP descriptors are -+ 32-bit aligned). */ -+ TxBulkEPList[epid].next = virt_to_phys(&TxBulkDummyEPList[epid][0]); -+ } -+ -+ restart_dma8_sub0(); -+ -+ /* Update/restart the bulk start timer since we just started the channel.*/ -+ mod_timer(&bulk_start_timer, jiffies + BULK_START_TIMER_INTERVAL); -+ /* Update/restart the bulk eot timer since we just inserted traffic. */ -+ mod_timer(&bulk_eot_timer, jiffies + BULK_EOT_TIMER_INTERVAL); -+ break; -+ case PIPE_CONTROL: -+ /* Assert that the EP descriptor is disabled. */ -+ ASSERT(!(TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable))); -+ -+ /* Set up and enable the EP descriptor. */ -+ TxCtrlEPList[epid].sub = virt_to_phys(urb_priv->first_sb); -+ TxCtrlEPList[epid].hw_len = 0; -+ TxCtrlEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes); -+ -+ *R_DMA_CH8_SUB1_CMD = IO_STATE(R_DMA_CH8_SUB1_CMD, cmd, start); -+ break; -+ } -+ local_irq_restore(flags); -+} -+ -+static void tc_dma_link_intr_urb(struct urb *urb) { -+ struct crisv10_urb_priv *urb_priv = urb->hcpriv; -+ volatile struct USB_EP_Desc *tmp_ep; -+ struct USB_EP_Desc *ep_desc; -+ int i = 0, epid; -+ int pool_idx = 0; -+ -+ ASSERT(urb_priv != NULL); -+ epid = urb_priv->epid; -+ ASSERT(urb_priv->interval > 0); -+ ASSERT(urb_priv->intr_ep_pool_length > 0); -+ -+ tmp_ep = &TxIntrEPList[0]; -+ -+ /* Only insert one EP descriptor in list for Out Intr URBs. -+ We can only handle Out Intr with interval of 128ms because -+ it's not possible to insert several Out Intr EPs because they -+ are not consumed by the DMA. */ -+ if(usb_pipeout(urb->pipe)) { -+ ep_desc = urb_priv->intr_ep_pool[0]; -+ ASSERT(ep_desc); -+ ep_desc->next = tmp_ep->next; -+ tmp_ep->next = virt_to_phys(ep_desc); -+ i++; -+ } else { -+ /* Loop through Intr EP descriptor list and insert EP for URB at -+ specified interval */ -+ do { -+ /* Each EP descriptor with eof flag sat signals a new frame */ -+ if (tmp_ep->command & IO_MASK(USB_EP_command, eof)) { -+ /* Insert a EP from URBs EP pool at correct interval */ -+ if ((i % urb_priv->interval) == 0) { -+ ep_desc = urb_priv->intr_ep_pool[pool_idx]; -+ ASSERT(ep_desc); -+ ep_desc->next = tmp_ep->next; -+ tmp_ep->next = virt_to_phys(ep_desc); -+ pool_idx++; -+ ASSERT(pool_idx <= urb_priv->intr_ep_pool_length); -+ } -+ i++; -+ } -+ tmp_ep = (struct USB_EP_Desc *)phys_to_virt(tmp_ep->next); -+ } while(tmp_ep != &TxIntrEPList[0]); -+ } -+ -+ intr_dbg("Added SBs to intr epid %d: %s interval:%d (%d EP)\n", epid, -+ sblist_to_str(urb_priv->first_sb), urb_priv->interval, pool_idx); -+ -+ /* We start the DMA sub channel without checking if it's running or not, -+ because: -+ 1) If it's already running, issuing the start command is a nop. -+ 2) We avoid a test-and-set race condition. */ -+ *R_DMA_CH8_SUB2_CMD = IO_STATE(R_DMA_CH8_SUB2_CMD, cmd, start); -+} -+ -+ /* hinko ignore usb_pipeisoc */ -+#if 0 -+static void tc_dma_process_isoc_urb(struct urb *urb) { -+ unsigned long flags; -+ struct crisv10_urb_priv *urb_priv = urb->hcpriv; -+ int epid; -+ -+ /* Do not disturb us while fiddling with EPs and epids */ -+ local_irq_save(flags); -+ -+ ASSERT(urb_priv); -+ ASSERT(urb_priv->first_sb); -+ epid = urb_priv->epid; -+ -+ if(activeUrbList[epid] == NULL) { -+ /* EP is idle, so make this URB active */ -+ activeUrbList[epid] = urb; -+ urb_list_del(urb, epid); -+ ASSERT(TxIsocEPList[epid].sub == 0); -+ ASSERT(!(TxIsocEPList[epid].command & -+ IO_STATE(USB_EP_command, enable, yes))); -+ -+ /* Differentiate between In and Out Isoc. Because In SBs are not consumed*/ -+ if(usb_pipein(urb->pipe)) { -+ /* Each EP for In Isoc will have only one SB descriptor, setup when -+ submitting the first active urb. We do it here by copying from URBs -+ pre-allocated SB. */ -+ memcpy((void *)&(TxIsocSBList[epid]), urb_priv->first_sb, -+ sizeof(TxIsocSBList[epid])); -+ TxIsocEPList[epid].hw_len = 0; -+ TxIsocEPList[epid].sub = virt_to_phys(&(TxIsocSBList[epid])); -+ } else { -+ /* For Out Isoc we attach the pre-allocated list of SBs for the URB */ -+ TxIsocEPList[epid].hw_len = 0; -+ TxIsocEPList[epid].sub = virt_to_phys(urb_priv->first_sb); -+ -+ isoc_dbg("Attached first URB:0x%x[%d] to epid:%d first_sb:0x%x" -+ " last_sb::0x%x\n", -+ (unsigned int)urb, urb_priv->urb_num, epid, -+ (unsigned int)(urb_priv->first_sb), -+ (unsigned int)(urb_priv->last_sb)); -+ } -+ -+ if (urb->transfer_flags & URB_ISO_ASAP) { -+ /* The isoc transfer should be started as soon as possible. The -+ start_frame field is a return value if URB_ISO_ASAP was set. Comparing -+ R_USB_FM_NUMBER with a USB Chief trace shows that the first isoc IN -+ token is sent 2 frames later. I'm not sure how this affects usage of -+ the start_frame field by the device driver, or how it affects things -+ when USB_ISO_ASAP is not set, so therefore there's no compensation for -+ the 2 frame "lag" here. */ -+ urb->start_frame = (*R_USB_FM_NUMBER & 0x7ff); -+ TxIsocEPList[epid].command |= IO_STATE(USB_EP_command, enable, yes); -+ urb_priv->urb_state = STARTED; -+ isoc_dbg("URB_ISO_ASAP set, urb->start_frame set to %d\n", -+ urb->start_frame); -+ } else { -+ /* Not started yet. */ -+ urb_priv->urb_state = NOT_STARTED; -+ isoc_warn("urb_priv->urb_state set to NOT_STARTED for URB:0x%x\n", -+ (unsigned int)urb); -+ } -+ -+ } else { -+ /* An URB is already active on the EP. Leave URB in queue and let -+ finish_isoc_urb process it after current active URB */ -+ ASSERT(TxIsocEPList[epid].sub != 0); -+ -+ if(usb_pipein(urb->pipe)) { -+ /* Because there already is a active In URB on this epid we do nothing -+ and the finish_isoc_urb() function will handle switching to next URB*/ -+ -+ } else { /* For Out Isoc, insert new URBs traffic last in SB-list. */ -+ struct USB_SB_Desc *temp_sb_desc; -+ -+ /* Set state STARTED to all Out Isoc URBs added to SB list because we -+ don't know how many of them that are finished before descr interrupt*/ -+ urb_priv->urb_state = STARTED; -+ -+ /* Find end of current SB list by looking for SB with eol flag sat */ -+ temp_sb_desc = phys_to_virt(TxIsocEPList[epid].sub); -+ while ((temp_sb_desc->command & IO_MASK(USB_SB_command, eol)) != -+ IO_STATE(USB_SB_command, eol, yes)) { -+ ASSERT(temp_sb_desc->next); -+ temp_sb_desc = phys_to_virt(temp_sb_desc->next); -+ } -+ -+ isoc_dbg("Appended URB:0x%x[%d] (first:0x%x last:0x%x) to epid:%d" -+ " sub:0x%x eol:0x%x\n", -+ (unsigned int)urb, urb_priv->urb_num, -+ (unsigned int)(urb_priv->first_sb), -+ (unsigned int)(urb_priv->last_sb), epid, -+ (unsigned int)phys_to_virt(TxIsocEPList[epid].sub), -+ (unsigned int)temp_sb_desc); -+ -+ /* Next pointer must be set before eol is removed. */ -+ temp_sb_desc->next = virt_to_phys(urb_priv->first_sb); -+ /* Clear the previous end of list flag since there is a new in the -+ added SB descriptor list. */ -+ temp_sb_desc->command &= ~IO_MASK(USB_SB_command, eol); -+ -+ if (!(TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable))) { -+ __u32 epid_data; -+ /* 8.8.5 in Designer's Reference says we should check for and correct -+ any errors in the EP here. That should not be necessary if -+ epid_attn is handled correctly, so we assume all is ok. */ -+ epid_data = etrax_epid_iso_get(epid); -+ if (IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data) != -+ IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) { -+ isoc_err("Disabled Isoc EP with error:%d on epid:%d when appending" -+ " URB:0x%x[%d]\n", -+ IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data), epid, -+ (unsigned int)urb, urb_priv->urb_num); -+ } -+ -+ /* The SB list was exhausted. */ -+ if (virt_to_phys(urb_priv->last_sb) != TxIsocEPList[epid].sub) { -+ /* The new sublist did not get processed before the EP was -+ disabled. Setup the EP again. */ -+ -+ if(virt_to_phys(temp_sb_desc) == TxIsocEPList[epid].sub) { -+ isoc_dbg("EP for epid:%d stoped at SB:0x%x before newly inserted" -+ ", restarting from this URBs SB:0x%x\n", -+ epid, (unsigned int)temp_sb_desc, -+ (unsigned int)(urb_priv->first_sb)); -+ TxIsocEPList[epid].hw_len = 0; -+ TxIsocEPList[epid].sub = virt_to_phys(urb_priv->first_sb); -+ urb->start_frame = (*R_USB_FM_NUMBER & 0x7ff); -+ /* Enable the EP again so data gets processed this time */ -+ TxIsocEPList[epid].command |= -+ IO_STATE(USB_EP_command, enable, yes); -+ -+ } else { -+ /* The EP has been disabled but not at end this URB (god knows -+ where). This should generate an epid_attn so we should not be -+ here */ -+ isoc_warn("EP was disabled on sb:0x%x before SB list for" -+ " URB:0x%x[%d] got processed\n", -+ (unsigned int)phys_to_virt(TxIsocEPList[epid].sub), -+ (unsigned int)urb, urb_priv->urb_num); -+ } -+ } else { -+ /* This might happend if we are slow on this function and isn't -+ an error. */ -+ isoc_dbg("EP was disabled and finished with SBs from appended" -+ " URB:0x%x[%d]\n", (unsigned int)urb, urb_priv->urb_num); -+ } -+ } -+ } -+ } -+ -+ /* Start the DMA sub channel */ -+ *R_DMA_CH8_SUB3_CMD = IO_STATE(R_DMA_CH8_SUB3_CMD, cmd, start); -+ -+ local_irq_restore(flags); -+} -+#endif -+ -+static void tc_dma_unlink_intr_urb(struct urb *urb) { -+ struct crisv10_urb_priv *urb_priv = urb->hcpriv; -+ volatile struct USB_EP_Desc *first_ep; /* First EP in the list. */ -+ volatile struct USB_EP_Desc *curr_ep; /* Current EP, the iterator. */ -+ volatile struct USB_EP_Desc *next_ep; /* The EP after current. */ -+ volatile struct USB_EP_Desc *unlink_ep; /* The one we should remove from -+ the list. */ -+ int count = 0; -+ volatile int timeout = 10000; -+ int epid; -+ -+ /* Read 8.8.4 in Designer's Reference, "Removing an EP Descriptor from the -+ List". */ -+ ASSERT(urb_priv); -+ ASSERT(urb_priv->intr_ep_pool_length > 0); -+ epid = urb_priv->epid; -+ -+ /* First disable all Intr EPs belonging to epid for this URB */ -+ first_ep = &TxIntrEPList[0]; -+ curr_ep = first_ep; -+ do { -+ next_ep = (struct USB_EP_Desc *)phys_to_virt(curr_ep->next); -+ if (IO_EXTRACT(USB_EP_command, epid, next_ep->command) == epid) { -+ /* Disable EP */ -+ next_ep->command &= ~IO_MASK(USB_EP_command, enable); -+ } -+ curr_ep = phys_to_virt(curr_ep->next); -+ } while (curr_ep != first_ep); -+ -+ -+ /* Now unlink all EPs belonging to this epid from Descr list */ -+ first_ep = &TxIntrEPList[0]; -+ curr_ep = first_ep; -+ do { -+ next_ep = (struct USB_EP_Desc *)phys_to_virt(curr_ep->next); -+ if (IO_EXTRACT(USB_EP_command, epid, next_ep->command) == epid) { -+ /* This is the one we should unlink. */ -+ unlink_ep = next_ep; -+ -+ /* Actually unlink the EP from the DMA list. */ -+ curr_ep->next = unlink_ep->next; -+ -+ /* Wait until the DMA is no longer at this descriptor. */ -+ while((*R_DMA_CH8_SUB2_EP == virt_to_phys(unlink_ep)) && -+ (timeout-- > 0)); -+ if(timeout == 0) { -+ warn("Timeout while waiting for DMA-TX-Intr to leave unlink EP\n"); -+ } -+ -+ count++; -+ } -+ curr_ep = phys_to_virt(curr_ep->next); -+ } while (curr_ep != first_ep); -+ -+ if(count != urb_priv->intr_ep_pool_length) { -+ intr_warn("Unlinked %d of %d Intr EPs for URB:0x%x[%d]\n", count, -+ urb_priv->intr_ep_pool_length, (unsigned int)urb, -+ urb_priv->urb_num); -+ } else { -+ intr_dbg("Unlinked %d of %d interrupt EPs for URB:0x%x\n", count, -+ urb_priv->intr_ep_pool_length, (unsigned int)urb); -+ } -+} -+ -+static void check_finished_bulk_tx_epids(struct usb_hcd *hcd, -+ int timer) { -+ unsigned long flags; -+ int epid; -+ struct urb *urb; -+ struct crisv10_urb_priv * urb_priv; -+ __u32 epid_data; -+ -+ /* Protect TxEPList */ -+ local_irq_save(flags); -+ -+ for (epid = 0; epid < NBR_OF_EPIDS; epid++) { -+ /* A finished EP descriptor is disabled and has a valid sub pointer */ -+ if (!(TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) && -+ (TxBulkEPList[epid].sub != 0)) { -+ -+ /* Get the active URB for this epid */ -+ urb = activeUrbList[epid]; -+ /* Sanity checks */ -+ ASSERT(urb); -+ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv; -+ ASSERT(urb_priv); -+ -+ /* Only handle finished out Bulk EPs here, -+ and let RX interrupt take care of the rest */ -+ if(!epid_out_traffic(epid)) { -+ continue; -+ } -+ -+ if(timer) { -+ tc_warn("Found finished %s Bulk epid:%d URB:0x%x[%d] from timeout\n", -+ epid_out_traffic(epid) ? "Out" : "In", epid, (unsigned int)urb, -+ urb_priv->urb_num); -+ } else { -+ tc_dbg("Found finished %s Bulk epid:%d URB:0x%x[%d] from interrupt\n", -+ epid_out_traffic(epid) ? "Out" : "In", epid, (unsigned int)urb, -+ urb_priv->urb_num); -+ } -+ -+ if(urb_priv->urb_state == UNLINK) { -+ /* This Bulk URB is requested to be unlinked, that means that the EP -+ has been disabled and we might not have sent all data */ -+ tc_finish_urb(hcd, urb, urb->status); -+ continue; -+ } -+ -+ ASSERT(urb_priv->urb_state == STARTED); -+ if (phys_to_virt(TxBulkEPList[epid].sub) != urb_priv->last_sb) { -+ tc_err("Endpoint got disabled before reaching last sb\n"); -+ } -+ -+ epid_data = etrax_epid_get(epid); -+ if (IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data) == -+ IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) { -+ /* This means that the endpoint has no error, is disabled -+ and had inserted traffic, i.e. transfer successfully completed. */ -+ tc_finish_urb(hcd, urb, 0); -+ } else { -+ /* Shouldn't happen. We expect errors to be caught by epid -+ attention. */ -+ tc_err("Found disabled bulk EP desc (epid:%d error:%d)\n", -+ epid, IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data)); -+ } -+ } else { -+ tc_dbg("Ignoring In Bulk epid:%d, let RX interrupt handle it\n", epid); -+ } -+ } -+ -+ local_irq_restore(flags); -+} -+ -+static void check_finished_ctrl_tx_epids(struct usb_hcd *hcd) { -+ unsigned long flags; -+ int epid; -+ struct urb *urb; -+ struct crisv10_urb_priv * urb_priv; -+ __u32 epid_data; -+ -+ /* Protect TxEPList */ -+ local_irq_save(flags); -+ -+ for (epid = 0; epid < NBR_OF_EPIDS; epid++) { -+ if(epid == DUMMY_EPID) -+ continue; -+ -+ /* A finished EP descriptor is disabled and has a valid sub pointer */ -+ if (!(TxCtrlEPList[epid].command & IO_MASK(USB_EP_command, enable)) && -+ (TxCtrlEPList[epid].sub != 0)) { -+ -+ /* Get the active URB for this epid */ -+ urb = activeUrbList[epid]; -+ -+ if(urb == NULL) { -+ tc_warn("Found finished Ctrl epid:%d with no active URB\n", epid); -+ continue; -+ } -+ -+ /* Sanity checks */ -+ ASSERT(usb_pipein(urb->pipe)); -+ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv; -+ ASSERT(urb_priv); -+ if (phys_to_virt(TxCtrlEPList[epid].sub) != urb_priv->last_sb) { -+ tc_err("Endpoint got disabled before reaching last sb\n"); -+ } -+ -+ epid_data = etrax_epid_get(epid); -+ if (IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data) == -+ IO_STATE_VALUE(R_USB_EPT_DATA, error_code, no_error)) { -+ /* This means that the endpoint has no error, is disabled -+ and had inserted traffic, i.e. transfer successfully completed. */ -+ -+ /* Check if RX-interrupt for In Ctrl has been processed before -+ finishing the URB */ -+ if(urb_priv->ctrl_rx_done) { -+ tc_dbg("Finishing In Ctrl URB:0x%x[%d] in tx_interrupt\n", -+ (unsigned int)urb, urb_priv->urb_num); -+ tc_finish_urb(hcd, urb, 0); -+ } else { -+ /* If we get zout descriptor interrupt before RX was done for a -+ In Ctrl transfer, then we flag that and it will be finished -+ in the RX-Interrupt */ -+ urb_priv->ctrl_zout_done = 1; -+ tc_dbg("Got zout descr interrupt before RX interrupt\n"); -+ } -+ } else { -+ /* Shouldn't happen. We expect errors to be caught by epid -+ attention. */ -+ tc_err("Found disabled Ctrl EP desc (epid:%d URB:0x%x[%d]) error_code:%d\n", epid, (unsigned int)urb, urb_priv->urb_num, IO_EXTRACT(R_USB_EPT_DATA, error_code, epid_data)); -+ __dump_ep_desc(&(TxCtrlEPList[epid])); -+ __dump_ept_data(epid); -+ } -+ } -+ } -+ local_irq_restore(flags); -+} -+ -+ /* hinko ignore usb_pipeisoc */ -+#if 0 -+/* This function goes through all epids that are setup for Out Isoc transfers -+ and marks (isoc_out_done) all queued URBs that the DMA has finished -+ transfer for. -+ No URB completetion is done here to make interrupt routine return quickly. -+ URBs are completed later with help of complete_isoc_bottom_half() that -+ becomes schedules when this functions is finished. */ -+static void check_finished_isoc_tx_epids(void) { -+ unsigned long flags; -+ int epid; -+ struct urb *urb; -+ struct crisv10_urb_priv * urb_priv; -+ struct USB_SB_Desc* sb_desc; -+ int epid_done; -+ -+ /* Protect TxIsocEPList */ -+ local_irq_save(flags); -+ -+ for (epid = 0; epid < NBR_OF_EPIDS; epid++) { -+ if (TxIsocEPList[epid].sub == 0 || epid == INVALID_EPID || -+ !epid_out_traffic(epid)) { -+ /* Nothing here to see. */ -+ continue; -+ } -+ ASSERT(epid_inuse(epid)); -+ ASSERT(epid_isoc(epid)); -+ -+ sb_desc = phys_to_virt(TxIsocEPList[epid].sub); -+ /* Find the last descriptor of the currently active URB for this ep. -+ This is the first descriptor in the sub list marked for a descriptor -+ interrupt. */ -+ while (sb_desc && !IO_EXTRACT(USB_SB_command, intr, sb_desc->command)) { -+ sb_desc = sb_desc->next ? phys_to_virt(sb_desc->next) : 0; -+ } -+ ASSERT(sb_desc); -+ -+ isoc_dbg("Descr IRQ checking epid:%d sub:0x%x intr:0x%x\n", -+ epid, (unsigned int)phys_to_virt(TxIsocEPList[epid].sub), -+ (unsigned int)sb_desc); -+ -+ urb = activeUrbList[epid]; -+ if(urb == NULL) { -+ isoc_err("Isoc Descr irq on epid:%d with no active URB\n", epid); -+ continue; -+ } -+ -+ epid_done = 0; -+ while(urb && !epid_done) { -+ /* Sanity check. */ -+ ASSERT(usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS); -+ ASSERT(usb_pipeout(urb->pipe)); -+ -+ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv; -+ ASSERT(urb_priv); -+ ASSERT(urb_priv->urb_state == STARTED || -+ urb_priv->urb_state == UNLINK); -+ -+ if (sb_desc != urb_priv->last_sb) { -+ /* This urb has been sent. */ -+ urb_priv->isoc_out_done = 1; -+ -+ } else { /* Found URB that has last_sb as the interrupt reason */ -+ -+ /* Check if EP has been disabled, meaning that all transfers are done*/ -+ if(!(TxIsocEPList[epid].command & IO_MASK(USB_EP_command, enable))) { -+ ASSERT((sb_desc->command & IO_MASK(USB_SB_command, eol)) == -+ IO_STATE(USB_SB_command, eol, yes)); -+ ASSERT(sb_desc->next == 0); -+ urb_priv->isoc_out_done = 1; -+ } else { -+ isoc_dbg("Skipping URB:0x%x[%d] because EP not disabled yet\n", -+ (unsigned int)urb, urb_priv->urb_num); -+ } -+ /* Stop looking any further in queue */ -+ epid_done = 1; -+ } -+ -+ if (!epid_done) { -+ if(urb == activeUrbList[epid]) { -+ urb = urb_list_first(epid); -+ } else { -+ urb = urb_list_next(urb, epid); -+ } -+ } -+ } /* END: while(urb && !epid_done) */ -+ } -+ -+ local_irq_restore(flags); -+} -+ -+ -+/* This is where the Out Isoc URBs are realy completed. This function is -+ scheduled from tc_dma_tx_interrupt() when one or more Out Isoc transfers -+ are done. This functions completes all URBs earlier marked with -+ isoc_out_done by fast interrupt routine check_finished_isoc_tx_epids() */ -+ -+static void complete_isoc_bottom_half(void *data) { -+ struct crisv10_isoc_complete_data *comp_data; -+ struct usb_iso_packet_descriptor *packet; -+ struct crisv10_urb_priv * urb_priv; -+ unsigned long flags; -+ struct urb* urb; -+ int epid_done; -+ int epid; -+ int i; -+ -+ comp_data = (struct crisv10_isoc_complete_data*)data; -+ -+ local_irq_save(flags); -+ -+ for (epid = 0; epid < NBR_OF_EPIDS - 1; epid++) { -+ if(!epid_inuse(epid) || !epid_isoc(epid) || !epid_out_traffic(epid) || epid == DUMMY_EPID) { -+ /* Only check valid Out Isoc epids */ -+ continue; -+ } -+ -+ isoc_dbg("Isoc bottom-half checking epid:%d, sub:0x%x\n", epid, -+ (unsigned int)phys_to_virt(TxIsocEPList[epid].sub)); -+ -+ /* The descriptor interrupt handler has marked all transmitted Out Isoc -+ URBs with isoc_out_done. Now we traverse all epids and for all that -+ have out Isoc traffic we traverse its URB list and complete the -+ transmitted URBs. */ -+ epid_done = 0; -+ while (!epid_done) { -+ -+ /* Get the active urb (if any) */ -+ urb = activeUrbList[epid]; -+ if (urb == 0) { -+ isoc_dbg("No active URB on epid:%d anymore\n", epid); -+ epid_done = 1; -+ continue; -+ } -+ -+ /* Sanity check. */ -+ ASSERT(usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS); -+ ASSERT(usb_pipeout(urb->pipe)); -+ -+ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv; -+ ASSERT(urb_priv); -+ -+ if (!(urb_priv->isoc_out_done)) { -+ /* We have reached URB that isn't flaged done yet, stop traversing. */ -+ isoc_dbg("Stoped traversing Out Isoc URBs on epid:%d" -+ " before not yet flaged URB:0x%x[%d]\n", -+ epid, (unsigned int)urb, urb_priv->urb_num); -+ epid_done = 1; -+ continue; -+ } -+ -+ /* This urb has been sent. */ -+ isoc_dbg("Found URB:0x%x[%d] that is flaged isoc_out_done\n", -+ (unsigned int)urb, urb_priv->urb_num); -+ -+ /* Set ok on transfered packets for this URB and finish it */ -+ for (i = 0; i < urb->number_of_packets; i++) { -+ packet = &urb->iso_frame_desc[i]; -+ packet->status = 0; -+ packet->actual_length = packet->length; -+ } -+ urb_priv->isoc_packet_counter = urb->number_of_packets; -+ tc_finish_urb(comp_data->hcd, urb, 0); -+ -+ } /* END: while(!epid_done) */ -+ } /* END: for(epid...) */ -+ -+ local_irq_restore(flags); -+ kmem_cache_free(isoc_compl_cache, comp_data); -+} -+#endif -+ -+static void check_finished_intr_tx_epids(struct usb_hcd *hcd) { -+ unsigned long flags; -+ int epid; -+ struct urb *urb; -+ struct crisv10_urb_priv * urb_priv; -+ volatile struct USB_EP_Desc *curr_ep; /* Current EP, the iterator. */ -+ volatile struct USB_EP_Desc *next_ep; /* The EP after current. */ -+ -+ /* Protect TxintrEPList */ -+ local_irq_save(flags); -+ -+ for (epid = 0; epid < NBR_OF_EPIDS; epid++) { -+ if(!epid_inuse(epid) || !epid_intr(epid) || !epid_out_traffic(epid)) { -+ /* Nothing to see on this epid. Only check valid Out Intr epids */ -+ continue; -+ } -+ -+ urb = activeUrbList[epid]; -+ if(urb == 0) { -+ intr_warn("Found Out Intr epid:%d with no active URB\n", epid); -+ continue; -+ } -+ -+ /* Sanity check. */ -+ ASSERT(usb_pipetype(urb->pipe) == PIPE_INTERRUPT); -+ ASSERT(usb_pipeout(urb->pipe)); -+ -+ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv; -+ ASSERT(urb_priv); -+ -+ /* Go through EPs between first and second sof-EP. It's here Out Intr EPs -+ are inserted.*/ -+ curr_ep = &TxIntrEPList[0]; -+ do { -+ next_ep = (struct USB_EP_Desc *)phys_to_virt(curr_ep->next); -+ if(next_ep == urb_priv->intr_ep_pool[0]) { -+ /* We found the Out Intr EP for this epid */ -+ -+ /* Disable it so it doesn't get processed again */ -+ next_ep->command &= ~IO_MASK(USB_EP_command, enable); -+ -+ /* Finish the active Out Intr URB with status OK */ -+ tc_finish_urb(hcd, urb, 0); -+ } -+ curr_ep = phys_to_virt(curr_ep->next); -+ } while (curr_ep != &TxIntrEPList[1]); -+ -+ } -+ local_irq_restore(flags); -+} -+ -+/* Interrupt handler for DMA8/IRQ24 with subchannels (called from hardware intr) */ -+static irqreturn_t tc_dma_tx_interrupt(int irq, void *vhc) { -+ struct usb_hcd *hcd = (struct usb_hcd*)vhc; -+ ASSERT(hcd); -+ -+ if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub0_descr)) { -+ /* Clear this interrupt */ -+ *R_DMA_CH8_SUB0_CLR_INTR = IO_STATE(R_DMA_CH8_SUB0_CLR_INTR, clr_descr, do); -+ restart_dma8_sub0(); -+ } -+ -+ if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub1_descr)) { -+ /* Clear this interrupt */ -+ *R_DMA_CH8_SUB1_CLR_INTR = IO_STATE(R_DMA_CH8_SUB1_CLR_INTR, clr_descr, do); -+ check_finished_ctrl_tx_epids(hcd); -+ } -+ -+ if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub2_descr)) { -+ /* Clear this interrupt */ -+ *R_DMA_CH8_SUB2_CLR_INTR = IO_STATE(R_DMA_CH8_SUB2_CLR_INTR, clr_descr, do); -+ check_finished_intr_tx_epids(hcd); -+ } -+ -+ /* hinko ignore usb_pipeisoc */ -+#if 0 -+ if (*R_IRQ_READ2 & IO_MASK(R_IRQ_READ2, dma8_sub3_descr)) { -+ struct crisv10_isoc_complete_data* comp_data; -+ -+ /* Flag done Out Isoc for later completion */ -+ check_finished_isoc_tx_epids(); -+ -+ /* Clear this interrupt */ -+ *R_DMA_CH8_SUB3_CLR_INTR = IO_STATE(R_DMA_CH8_SUB3_CLR_INTR, clr_descr, do); -+ /* Schedule bottom half of Out Isoc completion function. This function -+ finishes the URBs marked with isoc_out_done */ -+ comp_data = (struct crisv10_isoc_complete_data*) -+ kmem_cache_alloc(isoc_compl_cache, GFP_ATOMIC); -+ ASSERT(comp_data != NULL); -+ comp_data ->hcd = hcd; -+ -+ //INIT_WORK(&comp_data->usb_bh, complete_isoc_bottom_half, comp_data); -+ INIT_WORK(&comp_data->usb_bh, complete_isoc_bottom_half); -+ schedule_work(&comp_data->usb_bh); -+ } -+#endif -+ -+ return IRQ_HANDLED; -+} -+ -+/* Interrupt handler for DMA9/IRQ25 (called from hardware intr) */ -+static irqreturn_t tc_dma_rx_interrupt(int irq, void *vhc) { -+ unsigned long flags; -+ struct urb *urb; -+ struct usb_hcd *hcd = (struct usb_hcd*)vhc; -+ struct crisv10_urb_priv *urb_priv; -+ int epid = 0; -+ int real_error; -+ -+ ASSERT(hcd); -+ -+ /* Clear this interrupt. */ -+ *R_DMA_CH9_CLR_INTR = IO_STATE(R_DMA_CH9_CLR_INTR, clr_eop, do); -+ -+ /* Custom clear interrupt for this interrupt */ -+ /* The reason we cli here is that we call the driver's callback functions. */ -+ local_irq_save(flags); -+ -+ /* Note that this while loop assumes that all packets span only -+ one rx descriptor. */ -+ while(myNextRxDesc->status & IO_MASK(USB_IN_status, eop)) { -+ epid = IO_EXTRACT(USB_IN_status, epid, myNextRxDesc->status); -+ /* Get the active URB for this epid */ -+ urb = activeUrbList[epid]; -+ -+ ASSERT(epid_inuse(epid)); -+ if (!urb) { -+ dma_err("No urb for epid %d in rx interrupt\n", epid); -+ goto skip_out; -+ } -+ -+ /* Check if any errors on epid */ -+ real_error = 0; -+ if (myNextRxDesc->status & IO_MASK(USB_IN_status, error)) { -+ __u32 r_usb_ept_data; -+ -+ if (usb_pipeisoc(urb->pipe)) { -+ r_usb_ept_data = etrax_epid_iso_get(epid); -+ if((r_usb_ept_data & IO_MASK(R_USB_EPT_DATA_ISO, valid)) && -+ (IO_EXTRACT(R_USB_EPT_DATA_ISO, error_code, r_usb_ept_data) == 0) && -+ (myNextRxDesc->status & IO_MASK(USB_IN_status, nodata))) { -+ /* Not an error, just a failure to receive an expected iso -+ in packet in this frame. This is not documented -+ in the designers reference. Continue processing. -+ */ -+ } else real_error = 1; -+ } else real_error = 1; -+ } -+ -+ if(real_error) { -+ dma_err("Error in RX descr on epid:%d for URB 0x%x", -+ epid, (unsigned int)urb); -+ dump_ept_data(epid); -+ dump_in_desc(myNextRxDesc); -+ goto skip_out; -+ } -+ -+ urb_priv = (struct crisv10_urb_priv *)urb->hcpriv; -+ ASSERT(urb_priv); -+ ASSERT(urb_priv->urb_state == STARTED || -+ urb_priv->urb_state == UNLINK); -+ -+ if ((usb_pipetype(urb->pipe) == PIPE_BULK) || -+ (usb_pipetype(urb->pipe) == PIPE_CONTROL) || -+ (usb_pipetype(urb->pipe) == PIPE_INTERRUPT)) { -+ -+ /* We get nodata for empty data transactions, and the rx descriptor's -+ hw_len field is not valid in that case. No data to copy in other -+ words. */ -+ if (myNextRxDesc->status & IO_MASK(USB_IN_status, nodata)) { -+ /* No data to copy */ -+ } else { -+ /* -+ dma_dbg("Processing RX for URB:0x%x epid:%d (data:%d ofs:%d)\n", -+ (unsigned int)urb, epid, myNextRxDesc->hw_len, -+ urb_priv->rx_offset); -+ */ -+ /* Only copy data if URB isn't flaged to be unlinked*/ -+ if(urb_priv->urb_state != UNLINK) { -+ /* Make sure the data fits in the buffer. */ -+ if(urb_priv->rx_offset + myNextRxDesc->hw_len -+ <= urb->transfer_buffer_length) { -+ -+ /* Copy the data to URBs buffer */ -+ memcpy(urb->transfer_buffer + urb_priv->rx_offset, -+ phys_to_virt(myNextRxDesc->buf), myNextRxDesc->hw_len); -+ urb_priv->rx_offset += myNextRxDesc->hw_len; -+ } else { -+ /* Signal overflow when returning URB */ -+ urb->status = -EOVERFLOW; -+ tc_finish_urb_later(hcd, urb, urb->status); -+ } -+ } -+ } -+ -+ /* Check if it was the last packet in the transfer */ -+ if (myNextRxDesc->status & IO_MASK(USB_IN_status, eot)) { -+ /* Special handling for In Ctrl URBs. */ -+ if(usb_pipecontrol(urb->pipe) && usb_pipein(urb->pipe) && -+ !(urb_priv->ctrl_zout_done)) { -+ /* Flag that RX part of Ctrl transfer is done. Because zout descr -+ interrupt hasn't happend yet will the URB be finished in the -+ TX-Interrupt. */ -+ urb_priv->ctrl_rx_done = 1; -+ tc_dbg("Not finishing In Ctrl URB:0x%x from rx_interrupt, waiting" -+ " for zout\n", (unsigned int)urb); -+ } else { -+ tc_finish_urb(hcd, urb, 0); -+ } -+ } -+ } else { /* ISOC RX */ -+ /* -+ isoc_dbg("Processing RX for epid:%d (URB:0x%x) ISOC pipe\n", -+ epid, (unsigned int)urb); -+ */ -+ -+ struct usb_iso_packet_descriptor *packet; -+ -+ if (urb_priv->urb_state == UNLINK) { -+ isoc_warn("Ignoring Isoc Rx data for urb being unlinked.\n"); -+ goto skip_out; -+ } else if (urb_priv->urb_state == NOT_STARTED) { -+ isoc_err("What? Got Rx data for Isoc urb that isn't started?\n"); -+ goto skip_out; -+ } -+ -+ packet = &urb->iso_frame_desc[urb_priv->isoc_packet_counter]; -+ ASSERT(packet); -+ packet->status = 0; -+ -+ if (myNextRxDesc->status & IO_MASK(USB_IN_status, nodata)) { -+ /* We get nodata for empty data transactions, and the rx descriptor's -+ hw_len field is not valid in that case. We copy 0 bytes however to -+ stay in synch. */ -+ packet->actual_length = 0; -+ } else { -+ packet->actual_length = myNextRxDesc->hw_len; -+ /* Make sure the data fits in the buffer. */ -+ ASSERT(packet->actual_length <= packet->length); -+ memcpy(urb->transfer_buffer + packet->offset, -+ phys_to_virt(myNextRxDesc->buf), packet->actual_length); -+ if(packet->actual_length > 0) -+ isoc_dbg("Copied %d bytes, packet %d for URB:0x%x[%d]\n", -+ packet->actual_length, urb_priv->isoc_packet_counter, -+ (unsigned int)urb, urb_priv->urb_num); -+ } -+ -+ /* Increment the packet counter. */ -+ urb_priv->isoc_packet_counter++; -+ -+ /* Note that we don't care about the eot field in the rx descriptor's -+ status. It will always be set for isoc traffic. */ -+ if (urb->number_of_packets == urb_priv->isoc_packet_counter) { -+ /* Complete the urb with status OK. */ -+ tc_finish_urb(hcd, urb, 0); -+ } -+ } -+ -+ skip_out: -+ myNextRxDesc->status = 0; -+ myNextRxDesc->command |= IO_MASK(USB_IN_command, eol); -+ myLastRxDesc->command &= ~IO_MASK(USB_IN_command, eol); -+ myLastRxDesc = myNextRxDesc; -+ myNextRxDesc = phys_to_virt(myNextRxDesc->next); -+ flush_etrax_cache(); -+ *R_DMA_CH9_CMD = IO_STATE(R_DMA_CH9_CMD, cmd, restart); -+ } -+ -+ local_irq_restore(flags); -+ -+ return IRQ_HANDLED; -+} -+ -+static void tc_bulk_start_timer_func(unsigned long dummy) { -+ /* We might enable an EP descriptor behind the current DMA position when -+ it's about to decide that there are no more bulk traffic and it should -+ stop the bulk channel. -+ Therefore we periodically check if the bulk channel is stopped and there -+ is an enabled bulk EP descriptor, in which case we start the bulk -+ channel. */ -+ -+ if (!(*R_DMA_CH8_SUB0_CMD & IO_MASK(R_DMA_CH8_SUB0_CMD, cmd))) { -+ int epid; -+ -+ timer_dbg("bulk_start_timer: Bulk DMA channel not running.\n"); -+ -+ for (epid = 0; epid < NBR_OF_EPIDS; epid++) { -+ if (TxBulkEPList[epid].command & IO_MASK(USB_EP_command, enable)) { -+ timer_warn("Found enabled EP for epid %d, starting bulk channel.\n", -+ epid); -+ restart_dma8_sub0(); -+ -+ /* Restart the bulk eot timer since we just started the bulk channel.*/ -+ mod_timer(&bulk_eot_timer, jiffies + BULK_EOT_TIMER_INTERVAL); -+ -+ /* No need to search any further. */ -+ break; -+ } -+ } -+ } else { -+ timer_dbg("bulk_start_timer: Bulk DMA channel running.\n"); -+ } -+} -+ -+static void tc_bulk_eot_timer_func(unsigned long dummy) { -+ struct usb_hcd *hcd = (struct usb_hcd*)dummy; -+ ASSERT(hcd); -+ /* Because of a race condition in the top half, we might miss a bulk eot. -+ This timer "simulates" a bulk eot if we don't get one for a while, -+ hopefully correcting the situation. */ -+ timer_dbg("bulk_eot_timer timed out.\n"); -+ check_finished_bulk_tx_epids(hcd, 1); -+} -+ -+ -+/*************************************************************/ -+/*************************************************************/ -+/* Device driver block */ -+/*************************************************************/ -+/*************************************************************/ -+ -+/* Forward declarations for device driver functions */ -+static int devdrv_hcd_probe(struct device *); -+static int devdrv_hcd_remove(struct device *); -+#ifdef CONFIG_PM -+static int devdrv_hcd_suspend(struct device *, u32, u32); -+static int devdrv_hcd_resume(struct device *, u32); -+#endif /* CONFIG_PM */ -+ -+/* the device */ -+static struct platform_device *devdrv_hc_platform_device; -+ -+/* device driver interface */ -+static struct device_driver devdrv_hc_device_driver = { -+ .name = (char *) hc_name, -+ .bus = &platform_bus_type, -+ -+ .probe = devdrv_hcd_probe, -+ .remove = devdrv_hcd_remove, -+ -+#ifdef CONFIG_PM -+ .suspend = devdrv_hcd_suspend, -+ .resume = devdrv_hcd_resume, -+#endif /* CONFIG_PM */ -+}; -+ -+/* initialize the host controller and driver */ -+static int __init_or_module devdrv_hcd_probe(struct device *dev) -+{ -+ struct usb_hcd *hcd; -+ struct crisv10_hcd *crisv10_hcd; -+ int retval; -+ int rev_maj, rev_min; -+ -+ /* Check DMA burst length */ -+ if(IO_EXTRACT(R_BUS_CONFIG, dma_burst, *R_BUS_CONFIG) != -+ IO_STATE(R_BUS_CONFIG, dma_burst, burst32)) { -+ devdrv_err("Invalid DMA burst length in Etrax 100LX," -+ " needs to be 32\n"); -+ return -EPERM; -+ } -+ -+ hcd = usb_create_hcd(&crisv10_hc_driver, dev, dev_name(dev)); -+ if (!hcd) -+ return -ENOMEM; -+ -+ crisv10_hcd = hcd_to_crisv10_hcd(hcd); -+ spin_lock_init(&crisv10_hcd->lock); -+ crisv10_hcd->num_ports = num_ports(); -+ crisv10_hcd->running = 0; -+ -+ dev_set_drvdata(dev, crisv10_hcd); -+ -+ devdrv_dbg("ETRAX USB IRQs HC:%d RX:%d TX:%d\n", ETRAX_USB_HC_IRQ, -+ ETRAX_USB_RX_IRQ, ETRAX_USB_TX_IRQ); -+ -+ /* Print out chip version read from registers */ -+ rev_maj = *R_USB_REVISION & IO_MASK(R_USB_REVISION, major); -+ rev_min = *R_USB_REVISION & IO_MASK(R_USB_REVISION, minor); -+ if(rev_min == 0) { -+ devdrv_info("Etrax 100LX USB Revision %d v1,2\n", rev_maj); -+ } else { -+ devdrv_info("Etrax 100LX USB Revision %d v%d\n", rev_maj, rev_min); -+ } -+ -+ devdrv_info("Bulk timer interval, start:%d eot:%d\n", -+ BULK_START_TIMER_INTERVAL, -+ BULK_EOT_TIMER_INTERVAL); -+ -+ -+ /* Init root hub data structures */ -+ if(rh_init()) { -+ devdrv_err("Failed init data for Root Hub\n"); -+ retval = -ENOMEM; -+ } -+ -+ if(port_in_use(0)) { -+ if (cris_request_io_interface(if_usb_1, "ETRAX100LX USB-HCD")) { -+ printk(KERN_CRIT "usb-host: request IO interface usb1 failed"); -+ retval = -EBUSY; -+ goto out; -+ } -+ devdrv_info("Claimed interface for USB physical port 1\n"); -+ } -+ if(port_in_use(1)) { -+ if (cris_request_io_interface(if_usb_2, "ETRAX100LX USB-HCD")) { -+ /* Free first interface if second failed to be claimed */ -+ if(port_in_use(0)) { -+ cris_free_io_interface(if_usb_1); -+ } -+ printk(KERN_CRIT "usb-host: request IO interface usb2 failed"); -+ retval = -EBUSY; -+ goto out; -+ } -+ devdrv_info("Claimed interface for USB physical port 2\n"); -+ } -+ -+ /* Init transfer controller structs and locks */ -+ if((retval = tc_init(hcd)) != 0) { -+ goto out; -+ } -+ -+ /* Attach interrupt functions for DMA and init DMA controller */ -+ if((retval = tc_dma_init(hcd)) != 0) { -+ goto out; -+ } -+ -+ /* Attach the top IRQ handler for USB controller interrupts */ -+ if (request_irq(ETRAX_USB_HC_IRQ, crisv10_hcd_top_irq, 0, -+ "ETRAX 100LX built-in USB (HC)", hcd)) { -+ err("Could not allocate IRQ %d for USB", ETRAX_USB_HC_IRQ); -+ retval = -EBUSY; -+ goto out; -+ } -+ -+ /* iso_eof is only enabled when isoc traffic is running. */ -+ *R_USB_IRQ_MASK_SET = -+ /* IO_STATE(R_USB_IRQ_MASK_SET, iso_eof, set) | */ -+ IO_STATE(R_USB_IRQ_MASK_SET, bulk_eot, set) | -+ IO_STATE(R_USB_IRQ_MASK_SET, epid_attn, set) | -+ IO_STATE(R_USB_IRQ_MASK_SET, port_status, set) | -+ IO_STATE(R_USB_IRQ_MASK_SET, ctl_status, set); -+ -+ -+ crisv10_ready_wait(); -+ /* Reset the USB interface. */ -+ *R_USB_COMMAND = -+ IO_STATE(R_USB_COMMAND, port_sel, nop) | -+ IO_STATE(R_USB_COMMAND, port_cmd, reset) | -+ IO_STATE(R_USB_COMMAND, ctrl_cmd, reset); -+ -+ /* Designer's Reference, p. 8 - 10 says we should Initate R_USB_FM_PSTART to -+ 0x2A30 (10800), to guarantee that control traffic gets 10% of the -+ bandwidth, and periodic transfer may allocate the rest (90%). -+ This doesn't work though. -+ The value 11960 is chosen to be just after the SOF token, with a couple -+ of bit times extra for possible bit stuffing. */ -+ *R_USB_FM_PSTART = IO_FIELD(R_USB_FM_PSTART, value, 11960); -+ -+ crisv10_ready_wait(); -+ /* Configure the USB interface as a host controller. */ -+ *R_USB_COMMAND = -+ IO_STATE(R_USB_COMMAND, port_sel, nop) | -+ IO_STATE(R_USB_COMMAND, port_cmd, reset) | -+ IO_STATE(R_USB_COMMAND, ctrl_cmd, host_config); -+ -+ -+ /* Check so controller not busy before enabling ports */ -+ crisv10_ready_wait(); -+ -+ /* Enable selected USB ports */ -+ if(port_in_use(0)) { -+ *R_USB_PORT1_DISABLE = IO_STATE(R_USB_PORT1_DISABLE, disable, no); -+ } else { -+ *R_USB_PORT1_DISABLE = IO_STATE(R_USB_PORT1_DISABLE, disable, yes); -+ } -+ if(port_in_use(1)) { -+ *R_USB_PORT2_DISABLE = IO_STATE(R_USB_PORT2_DISABLE, disable, no); -+ } else { -+ *R_USB_PORT2_DISABLE = IO_STATE(R_USB_PORT2_DISABLE, disable, yes); -+ } -+ -+ crisv10_ready_wait(); -+ /* Start processing of USB traffic. */ -+ *R_USB_COMMAND = -+ IO_STATE(R_USB_COMMAND, port_sel, nop) | -+ IO_STATE(R_USB_COMMAND, port_cmd, reset) | -+ IO_STATE(R_USB_COMMAND, ctrl_cmd, host_run); -+ -+ /* Do not continue probing initialization before USB interface is done */ -+ crisv10_ready_wait(); -+ -+ /* Register our Host Controller to USB Core -+ * Finish the remaining parts of generic HCD initialization: allocate the -+ * buffers of consistent memory, register the bus -+ * and call the driver's reset() and start() routines. */ -+ retval = usb_add_hcd(hcd, ETRAX_USB_HC_IRQ, IRQF_DISABLED); -+ if (retval != 0) { -+ devdrv_err("Failed registering HCD driver\n"); -+ goto out; -+ } -+ -+ return 0; -+ -+ out: -+ devdrv_hcd_remove(dev); -+ return retval; -+} -+ -+ -+/* cleanup after the host controller and driver */ -+static int __init_or_module devdrv_hcd_remove(struct device *dev) -+{ -+ struct crisv10_hcd *crisv10_hcd = dev_get_drvdata(dev); -+ struct usb_hcd *hcd; -+ -+ if (!crisv10_hcd) -+ return 0; -+ hcd = crisv10_hcd_to_hcd(crisv10_hcd); -+ -+ -+ /* Stop USB Controller in Etrax 100LX */ -+ crisv10_hcd_reset(hcd); -+ -+ usb_remove_hcd(hcd); -+ devdrv_dbg("Removed HCD from USB Core\n"); -+ -+ /* Free USB Controller IRQ */ -+ free_irq(ETRAX_USB_HC_IRQ, NULL); -+ -+ /* Free resources */ -+ tc_dma_destroy(); -+ tc_destroy(); -+ -+ -+ if(port_in_use(0)) { -+ cris_free_io_interface(if_usb_1); -+ } -+ if(port_in_use(1)) { -+ cris_free_io_interface(if_usb_2); -+ } -+ -+ devdrv_dbg("Freed all claimed resources\n"); -+ -+ return 0; -+} -+ -+ -+#ifdef CONFIG_PM -+ -+static int devdrv_hcd_suspend(struct usb_hcd *hcd, u32 state, u32 level) -+{ -+ return 0; /* no-op for now */ -+} -+ -+static int devdrv_hcd_resume(struct usb_hcd *hcd, u32 level) -+{ -+ return 0; /* no-op for now */ -+} -+ -+#endif /* CONFIG_PM */ -+ -+ -+ -+/*************************************************************/ -+/*************************************************************/ -+/* Module block */ -+/*************************************************************/ -+/*************************************************************/ -+ -+/* register driver */ -+static int __init module_hcd_init(void) -+{ -+ -+ if (usb_disabled()) -+ return -ENODEV; -+ -+ /* Here we select enabled ports by following defines created from -+ menuconfig */ -+#ifndef CONFIG_ETRAX_USB_HOST_PORT1 -+ ports &= ~(1<<0); -+#endif -+#ifndef CONFIG_ETRAX_USB_HOST_PORT2 -+ ports &= ~(1<<1); -+#endif -+ -+ printk(KERN_INFO "%s version "VERSION" "COPYRIGHT"\n", product_desc); -+ -+ devdrv_hc_platform_device = -+ platform_device_register_simple((char *) hc_name, 0, NULL, 0); -+ -+ if (IS_ERR(devdrv_hc_platform_device)) -+ return PTR_ERR(devdrv_hc_platform_device); -+ return driver_register(&devdrv_hc_device_driver); -+ /* -+ * Note that we do not set the DMA mask for the device, -+ * i.e. we pretend that we will use PIO, since no specific -+ * allocation routines are needed for DMA buffers. This will -+ * cause the HCD buffer allocation routines to fall back to -+ * kmalloc(). -+ */ -+} -+ -+/* unregister driver */ -+static void __exit module_hcd_exit(void) -+{ -+ driver_unregister(&devdrv_hc_device_driver); -+} -+ -+ -+/* Module hooks */ -+module_init(module_hcd_init); -+module_exit(module_hcd_exit); -diff -Nur linux-2.6.36.orig/drivers/usb/host/hc-crisv10.h linux-2.6.36/drivers/usb/host/hc-crisv10.h ---- linux-2.6.36.orig/drivers/usb/host/hc-crisv10.h 1970-01-01 01:00:00.000000000 +0100 -+++ linux-2.6.36/drivers/usb/host/hc-crisv10.h 2010-11-15 17:57:18.000000000 +0100 -@@ -0,0 +1,331 @@ -+#ifndef __LINUX_ETRAX_USB_H -+#define __LINUX_ETRAX_USB_H -+ -+#include -+#include -+ -+struct USB_IN_Desc { -+ volatile __u16 sw_len; -+ volatile __u16 command; -+ volatile unsigned long next; -+ volatile unsigned long buf; -+ volatile __u16 hw_len; -+ volatile __u16 status; -+}; -+ -+struct USB_SB_Desc { -+ volatile __u16 sw_len; -+ volatile __u16 command; -+ volatile unsigned long next; -+ volatile unsigned long buf; -+}; -+ -+struct USB_EP_Desc { -+ volatile __u16 hw_len; -+ volatile __u16 command; -+ volatile unsigned long sub; -+ volatile unsigned long next; -+}; -+ -+ -+/* Root Hub port status struct */ -+struct crisv10_rh { -+ volatile __u16 wPortChange[2]; -+ volatile __u16 wPortStatusPrev[2]; -+}; -+ -+/* HCD description */ -+struct crisv10_hcd { -+ spinlock_t lock; -+ __u8 num_ports; -+ __u8 running; -+}; -+ -+ -+/* Endpoint HC private data description */ -+struct crisv10_ep_priv { -+ int epid; -+}; -+ -+/* Additional software state info for a USB Controller epid */ -+struct etrax_epid { -+ __u8 inuse; /* !0 = setup in Etrax and used for a endpoint */ -+ __u8 disabled; /* !0 = Temporarly disabled to avoid resubmission */ -+ __u8 type; /* Setup as: PIPE_BULK, PIPE_CONTROL ... */ -+ __u8 out_traffic; /* !0 = This epid is for out traffic */ -+}; -+ -+/* Struct to hold information of scheduled later URB completion */ -+struct urb_later_data { -+// struct work_struct ws; -+ struct delayed_work ws; -+ struct usb_hcd *hcd; -+ struct urb *urb; -+ int urb_num; -+ int status; -+}; -+ -+ -+typedef enum { -+ STARTED, -+ NOT_STARTED, -+ UNLINK, -+} crisv10_urb_state_t; -+ -+ -+struct crisv10_urb_priv { -+ /* Sequence number for this URB. Every new submited URB gets this from -+ a incrementing counter. Used when a URB is scheduled for later finish to -+ be sure that the intended URB hasn't already been completed (device -+ drivers has a tendency to reuse URBs once they are completed, causing us -+ to not be able to single old ones out only based on the URB pointer.) */ -+ __u32 urb_num; -+ -+ /* The first_sb field is used for freeing all SB descriptors belonging -+ to an urb. The corresponding ep descriptor's sub pointer cannot be -+ used for this since the DMA advances the sub pointer as it processes -+ the sb list. */ -+ struct USB_SB_Desc *first_sb; -+ -+ /* The last_sb field referes to the last SB descriptor that belongs to -+ this urb. This is important to know so we can free the SB descriptors -+ that ranges between first_sb and last_sb. */ -+ struct USB_SB_Desc *last_sb; -+ -+ /* The rx_offset field is used in ctrl and bulk traffic to keep track -+ of the offset in the urb's transfer_buffer where incoming data should be -+ copied to. */ -+ __u32 rx_offset; -+ -+ /* Counter used in isochronous transfers to keep track of the -+ number of packets received/transmitted. */ -+ __u32 isoc_packet_counter; -+ -+ /* Flag that marks if this Isoc Out URB has finished it's transfer. Used -+ because several URBs can be finished before list is processed */ -+ __u8 isoc_out_done; -+ -+ /* This field is used to pass information about the urb's current state -+ between the various interrupt handlers (thus marked volatile). */ -+ volatile crisv10_urb_state_t urb_state; -+ -+ /* In Ctrl transfers consist of (at least) 3 packets: SETUP, IN and ZOUT. -+ When DMA8 sub-channel 2 has processed the SB list for this sequence we -+ get a interrupt. We also get a interrupt for In transfers and which -+ one of these interrupts that comes first depends of data size and device. -+ To be sure that we have got both interrupts before we complete the URB -+ we have these to flags that shows which part that has completed. -+ We can then check when we get one of the interrupts that if the other has -+ occured it's safe for us to complete the URB, otherwise we set appropriate -+ flag and do the completion when we get the other interrupt. */ -+ volatile unsigned char ctrl_zout_done; -+ volatile unsigned char ctrl_rx_done; -+ -+ /* Connection between the submitted urb and ETRAX epid number */ -+ __u8 epid; -+ -+ /* The rx_data_list field is used for periodic traffic, to hold -+ received data for later processing in the the complete_urb functions, -+ where the data us copied to the urb's transfer_buffer. Basically, we -+ use this intermediate storage because we don't know when it's safe to -+ reuse the transfer_buffer (FIXME?). */ -+ struct list_head rx_data_list; -+ -+ -+ /* The interval time rounded up to closest 2^N */ -+ int interval; -+ -+ /* Pool of EP descriptors needed if it's a INTR transfer. -+ Amount of EPs in pool correspons to how many INTR that should -+ be inserted in TxIntrEPList (max 128, defined by MAX_INTR_INTERVAL) */ -+ struct USB_EP_Desc* intr_ep_pool[128]; -+ -+ /* The mount of EPs allocated for this INTR URB */ -+ int intr_ep_pool_length; -+ -+ /* Pointer to info struct if URB is scheduled to be finished later */ -+ struct urb_later_data* later_data; -+}; -+ -+ -+/* This struct is for passing data from the top half to the bottom half irq -+ handlers */ -+struct crisv10_irq_reg { -+ struct usb_hcd* hcd; -+ __u32 r_usb_epid_attn; -+ __u8 r_usb_status; -+ __u16 r_usb_rh_port_status_1; -+ __u16 r_usb_rh_port_status_2; -+ __u32 r_usb_irq_mask_read; -+ __u32 r_usb_fm_number; -+ struct work_struct usb_bh; -+}; -+ -+ -+/* This struct is for passing data from the isoc top half to the isoc bottom -+ half. */ -+struct crisv10_isoc_complete_data { -+ struct usb_hcd *hcd; -+ struct urb *urb; -+ struct work_struct usb_bh; -+}; -+ -+/* Entry item for URB lists for each endpint */ -+typedef struct urb_entry -+{ -+ struct urb *urb; -+ struct list_head list; -+} urb_entry_t; -+ -+/* --------------------------------------------------------------------------- -+ Virtual Root HUB -+ ------------------------------------------------------------------------- */ -+/* destination of request */ -+#define RH_INTERFACE 0x01 -+#define RH_ENDPOINT 0x02 -+#define RH_OTHER 0x03 -+ -+#define RH_CLASS 0x20 -+#define RH_VENDOR 0x40 -+ -+/* Requests: bRequest << 8 | bmRequestType */ -+#define RH_GET_STATUS 0x0080 -+#define RH_CLEAR_FEATURE 0x0100 -+#define RH_SET_FEATURE 0x0300 -+#define RH_SET_ADDRESS 0x0500 -+#define RH_GET_DESCRIPTOR 0x0680 -+#define RH_SET_DESCRIPTOR 0x0700 -+#define RH_GET_CONFIGURATION 0x0880 -+#define RH_SET_CONFIGURATION 0x0900 -+#define RH_GET_STATE 0x0280 -+#define RH_GET_INTERFACE 0x0A80 -+#define RH_SET_INTERFACE 0x0B00 -+#define RH_SYNC_FRAME 0x0C80 -+/* Our Vendor Specific Request */ -+#define RH_SET_EP 0x2000 -+ -+ -+/* Hub port features */ -+#define RH_PORT_CONNECTION 0x00 -+#define RH_PORT_ENABLE 0x01 -+#define RH_PORT_SUSPEND 0x02 -+#define RH_PORT_OVER_CURRENT 0x03 -+#define RH_PORT_RESET 0x04 -+#define RH_PORT_POWER 0x08 -+#define RH_PORT_LOW_SPEED 0x09 -+#define RH_C_PORT_CONNECTION 0x10 -+#define RH_C_PORT_ENABLE 0x11 -+#define RH_C_PORT_SUSPEND 0x12 -+#define RH_C_PORT_OVER_CURRENT 0x13 -+#define RH_C_PORT_RESET 0x14 -+ -+/* Hub features */ -+#define RH_C_HUB_LOCAL_POWER 0x00 -+#define RH_C_HUB_OVER_CURRENT 0x01 -+ -+#define RH_DEVICE_REMOTE_WAKEUP 0x00 -+#define RH_ENDPOINT_STALL 0x01 -+ -+/* Our Vendor Specific feature */ -+#define RH_REMOVE_EP 0x00 -+ -+ -+#define RH_ACK 0x01 -+#define RH_REQ_ERR -1 -+#define RH_NACK 0x00 -+ -+/* Field definitions for */ -+ -+#define USB_IN_command__eol__BITNR 0 /* command macros */ -+#define USB_IN_command__eol__WIDTH 1 -+#define USB_IN_command__eol__no 0 -+#define USB_IN_command__eol__yes 1 -+ -+#define USB_IN_command__intr__BITNR 3 -+#define USB_IN_command__intr__WIDTH 1 -+#define USB_IN_command__intr__no 0 -+#define USB_IN_command__intr__yes 1 -+ -+#define USB_IN_status__eop__BITNR 1 /* status macros. */ -+#define USB_IN_status__eop__WIDTH 1 -+#define USB_IN_status__eop__no 0 -+#define USB_IN_status__eop__yes 1 -+ -+#define USB_IN_status__eot__BITNR 5 -+#define USB_IN_status__eot__WIDTH 1 -+#define USB_IN_status__eot__no 0 -+#define USB_IN_status__eot__yes 1 -+ -+#define USB_IN_status__error__BITNR 6 -+#define USB_IN_status__error__WIDTH 1 -+#define USB_IN_status__error__no 0 -+#define USB_IN_status__error__yes 1 -+ -+#define USB_IN_status__nodata__BITNR 7 -+#define USB_IN_status__nodata__WIDTH 1 -+#define USB_IN_status__nodata__no 0 -+#define USB_IN_status__nodata__yes 1 -+ -+#define USB_IN_status__epid__BITNR 8 -+#define USB_IN_status__epid__WIDTH 5 -+ -+#define USB_EP_command__eol__BITNR 0 -+#define USB_EP_command__eol__WIDTH 1 -+#define USB_EP_command__eol__no 0 -+#define USB_EP_command__eol__yes 1 -+ -+#define USB_EP_command__eof__BITNR 1 -+#define USB_EP_command__eof__WIDTH 1 -+#define USB_EP_command__eof__no 0 -+#define USB_EP_command__eof__yes 1 -+ -+#define USB_EP_command__intr__BITNR 3 -+#define USB_EP_command__intr__WIDTH 1 -+#define USB_EP_command__intr__no 0 -+#define USB_EP_command__intr__yes 1 -+ -+#define USB_EP_command__enable__BITNR 4 -+#define USB_EP_command__enable__WIDTH 1 -+#define USB_EP_command__enable__no 0 -+#define USB_EP_command__enable__yes 1 -+ -+#define USB_EP_command__hw_valid__BITNR 5 -+#define USB_EP_command__hw_valid__WIDTH 1 -+#define USB_EP_command__hw_valid__no 0 -+#define USB_EP_command__hw_valid__yes 1 -+ -+#define USB_EP_command__epid__BITNR 8 -+#define USB_EP_command__epid__WIDTH 5 -+ -+#define USB_SB_command__eol__BITNR 0 /* command macros. */ -+#define USB_SB_command__eol__WIDTH 1 -+#define USB_SB_command__eol__no 0 -+#define USB_SB_command__eol__yes 1 -+ -+#define USB_SB_command__eot__BITNR 1 -+#define USB_SB_command__eot__WIDTH 1 -+#define USB_SB_command__eot__no 0 -+#define USB_SB_command__eot__yes 1 -+ -+#define USB_SB_command__intr__BITNR 3 -+#define USB_SB_command__intr__WIDTH 1 -+#define USB_SB_command__intr__no 0 -+#define USB_SB_command__intr__yes 1 -+ -+#define USB_SB_command__tt__BITNR 4 -+#define USB_SB_command__tt__WIDTH 2 -+#define USB_SB_command__tt__zout 0 -+#define USB_SB_command__tt__in 1 -+#define USB_SB_command__tt__out 2 -+#define USB_SB_command__tt__setup 3 -+ -+ -+#define USB_SB_command__rem__BITNR 8 -+#define USB_SB_command__rem__WIDTH 6 -+ -+#define USB_SB_command__full__BITNR 6 -+#define USB_SB_command__full__WIDTH 1 -+#define USB_SB_command__full__no 0 -+#define USB_SB_command__full__yes 1 -+ -+#endif -diff -Nur linux-2.6.36.orig/lib/klist.c linux-2.6.36/lib/klist.c ---- linux-2.6.36.orig/lib/klist.c 2010-10-20 22:30:22.000000000 +0200 -+++ linux-2.6.36/lib/klist.c 2010-11-15 17:57:18.000000000 +0100 -@@ -60,7 +60,7 @@ - { - knode->n_klist = klist; - /* no knode deserves to start its life dead */ -- WARN_ON(knode_dead(knode)); -+ //WARN_ON(knode_dead(knode)); - } - - static void knode_kill(struct klist_node *knode) -- cgit v1.2.3