X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fusb%2Fhost%2Fr8a66597-hcd.c;h=319041205b57c878b38b7b60b9ad1a9f3bf47dab;hb=0a2e5b9b8a3d205b565dec18d6fe39ef1aed75cc;hp=4db0107f31786b3bc308bef3f8da473994ea0484;hpb=0bf32b807ff28bb71012f60660e97e79408252ce;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 4db0107..3190412 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -66,7 +66,7 @@ static unsigned short endian; module_param(endian, ushort, 0644); MODULE_PARM_DESC(endian, "data endian: big=256, little=0 (default=0)"); -static unsigned short irq_sense = INTL; +static unsigned short irq_sense = 0xff; module_param(irq_sense, ushort, 0644); MODULE_PARM_DESC(irq_sense, "IRQ sense: low level=32, falling edge=0 " "(default=32)"); @@ -114,11 +114,14 @@ static int r8a66597_clock_enable(struct r8a66597 *r8a66597) int i = 0; #if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) +#if defined(CONFIG_HAVE_CLK) + clk_enable(r8a66597->clk); +#endif do { r8a66597_write(r8a66597, SCKE, SYSCFG0); tmp = r8a66597_read(r8a66597, SYSCFG0); if (i++ > 1000) { - err("register access fail."); + printk(KERN_ERR "r8a66597: register access fail.\n"); return -ENXIO; } } while ((tmp & SCKE) != SCKE); @@ -128,7 +131,7 @@ static int r8a66597_clock_enable(struct r8a66597 *r8a66597) r8a66597_write(r8a66597, USBE, SYSCFG0); tmp = r8a66597_read(r8a66597, SYSCFG0); if (i++ > 1000) { - err("register access fail."); + printk(KERN_ERR "r8a66597: register access fail.\n"); return -ENXIO; } } while ((tmp & USBE) != USBE); @@ -141,7 +144,7 @@ static int r8a66597_clock_enable(struct r8a66597 *r8a66597) msleep(1); tmp = r8a66597_read(r8a66597, SYSCFG0); if (i++ > 500) { - err("register access fail."); + printk(KERN_ERR "r8a66597: register access fail.\n"); return -ENXIO; } } while ((tmp & SCKE) != SCKE); @@ -154,7 +157,11 @@ static void r8a66597_clock_disable(struct r8a66597 *r8a66597) { r8a66597_bclr(r8a66597, SCKE, SYSCFG0); udelay(1); -#if !defined(CONFIG_SUPERH_ON_CHIP_R8A66597) +#if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) +#if defined(CONFIG_HAVE_CLK) + clk_disable(r8a66597->clk); +#endif +#else r8a66597_bclr(r8a66597, PLLC, SYSCFG0); r8a66597_bclr(r8a66597, XCKE, SYSCFG0); r8a66597_bclr(r8a66597, USBE, SYSCFG0); @@ -265,7 +272,7 @@ static void get_port_number(char *devpath, u16 *root_port, u16 *hub_port) if (root_port) { *root_port = (devpath[0] & 0x0F) - 1; if (*root_port >= R8A66597_MAX_ROOT_HUB) - err("illegal root port number"); + printk(KERN_ERR "r8a66597: Illegal root port number.\n"); } if (hub_port) *hub_port = devpath[2] & 0x0F; @@ -286,7 +293,7 @@ static u16 get_r8a66597_usb_speed(enum usb_device_speed speed) usbspd = HSMODE; break; default: - err("unknown speed"); + printk(KERN_ERR "r8a66597: unknown speed\n"); break; } @@ -385,7 +392,7 @@ static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) struct r8a66597_device *dev; if (is_hub_limit(urb->dev->devpath)) { - err("Externel hub limit reached."); + dev_err(&urb->dev->dev, "External hub limit reached.\n"); return 0; } @@ -406,8 +413,9 @@ static u8 alloc_usb_address(struct r8a66597 *r8a66597, struct urb *urb) return addr; } - err("cannot communicate with a USB device more than 10.(%x)", - r8a66597->address_map); + dev_err(&urb->dev->dev, + "cannot communicate with a USB device more than 10.(%x)\n", + r8a66597->address_map); return 0; } @@ -447,7 +455,8 @@ static void r8a66597_reg_wait(struct r8a66597 *r8a66597, unsigned long reg, do { tmp = r8a66597_read(r8a66597, reg); if (i++ > 1000000) { - err("register%lx, loop %x is timeout", reg, loop); + printk(KERN_ERR "r8a66597: register%lx, loop %x " + "is timeout\n", reg, loop); break; } ndelay(1); @@ -675,7 +684,7 @@ static u16 get_empty_pipenum(struct r8a66597 *r8a66597, array[i++] = 1; break; default: - err("Illegal type"); + printk(KERN_ERR "r8a66597: Illegal type\n"); return 0; } @@ -705,7 +714,7 @@ static u16 get_r8a66597_type(__u8 type) r8a66597_type = R8A66597_ISO; break; default: - err("Illegal type"); + printk(KERN_ERR "r8a66597: Illegal type\n"); r8a66597_type = 0x0000; break; } @@ -724,7 +733,7 @@ static u16 get_bufnum(u16 pipenum) else if (check_interrupt(pipenum)) bufnum = 4 + (pipenum - 6); else - err("Illegal pipenum (%d)", pipenum); + printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); return bufnum; } @@ -740,7 +749,7 @@ static u16 get_buf_bsize(u16 pipenum) else if (check_interrupt(pipenum)) buf_bsize = 0; else - err("Illegal pipenum (%d)", pipenum); + printk(KERN_ERR "r8a66597: Illegal pipenum (%d)\n", pipenum); return buf_bsize; } @@ -760,10 +769,12 @@ static void enable_r8a66597_pipe_dma(struct r8a66597 *r8a66597, if ((r8a66597->dma_map & (1 << i)) != 0) continue; - info("address %d, EndpointAddress 0x%02x use DMA FIFO", - usb_pipedevice(urb->pipe), - info->dir_in ? USB_ENDPOINT_DIR_MASK + info->epnum - : info->epnum); + dev_info(&dev->udev->dev, + "address %d, EndpointAddress 0x%02x use " + "DMA FIFO\n", usb_pipedevice(urb->pipe), + info->dir_in ? + USB_ENDPOINT_DIR_MASK + info->epnum + : info->epnum); r8a66597->dma_map |= 1 << i; dev->dma_map |= 1 << i; @@ -863,6 +874,32 @@ static void disable_r8a66597_pipe_all(struct r8a66597 *r8a66597, dev->dma_map = 0; } +static u16 get_interval(struct urb *urb, __u8 interval) +{ + u16 time = 1; + int i; + + if (urb->dev->speed == USB_SPEED_HIGH) { + if (interval > IITV) + time = IITV; + else + time = interval ? interval - 1 : 0; + } else { + if (interval > 128) { + time = IITV; + } else { + /* calculate the nearest value for PIPEPERI */ + for (i = 0; i < 7; i++) { + if ((1 << i) < interval && + (1 << (i + 1) > interval)) + time = 1 << i; + } + } + } + + return time; +} + static unsigned long get_timer_interval(struct urb *urb, __u8 interval) { __u8 i; @@ -901,10 +938,7 @@ static void init_pipe_info(struct r8a66597 *r8a66597, struct urb *urb, info.interval = 0; info.timer_interval = 0; } else { - if (ep->bInterval > IITV) - info.interval = IITV; - else - info.interval = ep->bInterval ? ep->bInterval - 1 : 0; + info.interval = get_interval(urb, ep->bInterval); info.timer_interval = get_timer_interval(urb, ep->bInterval); } if (ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) @@ -941,11 +975,34 @@ static void pipe_irq_disable(struct r8a66597 *r8a66597, u16 pipenum) disable_irq_nrdy(r8a66597, pipenum); } +static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597) +{ + mod_timer(&r8a66597->rh_timer, + jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME)); +} + +static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port, + int connect) +{ + struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; + + rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; + rh->scount = R8A66597_MAX_SAMPLING; + if (connect) + rh->port |= 1 << USB_PORT_FEAT_CONNECTION; + else + rh->port &= ~(1 << USB_PORT_FEAT_CONNECTION); + rh->port |= 1 << USB_PORT_FEAT_C_CONNECTION; + + r8a66597_root_hub_start_polling(r8a66597); +} + /* this function must be called with interrupt disabled */ static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port, u16 syssts) { if (syssts == SE0) { + r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); return; } @@ -979,13 +1036,10 @@ static void r8a66597_usb_disconnect(struct r8a66597 *r8a66597, int port) { struct r8a66597_device *dev = r8a66597->root_hub[port].dev; - r8a66597->root_hub[port].port &= ~(1 << USB_PORT_FEAT_CONNECTION); - r8a66597->root_hub[port].port |= (1 << USB_PORT_FEAT_C_CONNECTION); - disable_r8a66597_pipe_all(r8a66597, dev); free_usb_address(r8a66597, dev); - r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); + start_root_hub_sampling(r8a66597, port, 0); } /* this function must be called with interrupt disabled */ @@ -1144,7 +1198,7 @@ static int start_transfer(struct r8a66597 *r8a66597, struct r8a66597_td *td) prepare_status_packet(r8a66597, td); break; default: - err("invalid type."); + printk(KERN_ERR "r8a66597: invalid type.\n"); break; } @@ -1252,7 +1306,7 @@ static void packet_read(struct r8a66597 *r8a66597, u16 pipenum) if (unlikely((tmp & FRDY) == 0)) { pipe_stop(r8a66597, td->pipe); pipe_irq_disable(r8a66597, pipenum); - err("in fifo not ready (%d)", pipenum); + printk(KERN_ERR "r8a66597: in fifo not ready (%d)\n", pipenum); finish_request(r8a66597, td, pipenum, td->urb, -EPIPE); return; } @@ -1327,7 +1381,7 @@ static void packet_write(struct r8a66597 *r8a66597, u16 pipenum) if (unlikely((tmp & FRDY) == 0)) { pipe_stop(r8a66597, td->pipe); pipe_irq_disable(r8a66597, pipenum); - err("out write fifo not ready. (%d)", pipenum); + printk(KERN_ERR "r8a66597: out fifo not ready (%d)\n", pipenum); finish_request(r8a66597, td, pipenum, urb, -EPIPE); return; } @@ -1528,23 +1582,6 @@ static void irq_pipe_nrdy(struct r8a66597 *r8a66597) } } -static void r8a66597_root_hub_start_polling(struct r8a66597 *r8a66597) -{ - mod_timer(&r8a66597->rh_timer, - jiffies + msecs_to_jiffies(R8A66597_RH_POLL_TIME)); -} - -static void start_root_hub_sampling(struct r8a66597 *r8a66597, int port) -{ - struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; - - rh->old_syssts = r8a66597_read(r8a66597, get_syssts_reg(port)) & LNST; - rh->scount = R8A66597_MAX_SAMPLING; - r8a66597->root_hub[port].port |= (1 << USB_PORT_FEAT_CONNECTION) - | (1 << USB_PORT_FEAT_C_CONNECTION); - r8a66597_root_hub_start_polling(r8a66597); -} - static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) { struct r8a66597 *r8a66597 = hcd_to_r8a66597(hcd); @@ -1571,7 +1608,7 @@ static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) r8a66597_bclr(r8a66597, ATTCHE, INTENB2); /* start usb bus sampling */ - start_root_hub_sampling(r8a66597, 1); + start_root_hub_sampling(r8a66597, 1, 1); } if (mask2 & DTCH) { r8a66597_write(r8a66597, ~DTCH, INTSTS2); @@ -1586,7 +1623,7 @@ static irqreturn_t r8a66597_irq(struct usb_hcd *hcd) r8a66597_bclr(r8a66597, ATTCHE, INTENB1); /* start usb bus sampling */ - start_root_hub_sampling(r8a66597, 0); + start_root_hub_sampling(r8a66597, 0, 1); } if (mask1 & DTCH) { r8a66597_write(r8a66597, ~DTCH, INTSTS1); @@ -1733,11 +1770,12 @@ static void r8a66597_timer(unsigned long _r8a66597) { struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597; unsigned long flags; + int port; spin_lock_irqsave(&r8a66597->lock, flags); - r8a66597_root_hub_control(r8a66597, 0); - r8a66597_root_hub_control(r8a66597, 1); + for (port = 0; port < R8A66597_MAX_ROOT_HUB; port++) + r8a66597_root_hub_control(r8a66597, port); spin_unlock_irqrestore(&r8a66597->lock, flags); } @@ -1979,7 +2017,7 @@ static struct r8a66597_device *get_r8a66597_device(struct r8a66597 *r8a66597, return dev; } - err("get_r8a66597_device fail.(%d)\n", addr); + printk(KERN_ERR "r8a66597: get_r8a66597_device fail.(%d)\n", addr); return NULL; } @@ -2230,14 +2268,19 @@ static int __init_or_module r8a66597_remove(struct platform_device *pdev) del_timer_sync(&r8a66597->rh_timer); usb_remove_hcd(hcd); iounmap((void *)r8a66597->reg); +#if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) + clk_put(r8a66597->clk); +#endif usb_put_hcd(hcd); return 0; } -#define resource_len(r) (((r)->end - (r)->start) + 1) static int __init r8a66597_probe(struct platform_device *pdev) { - struct resource *res = NULL; +#if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) + char clk_name[8]; +#endif + struct resource *res = NULL, *ires; int irq = -1; void __iomem *reg = NULL; struct usb_hcd *hcd = NULL; @@ -2248,29 +2291,32 @@ static int __init r8a66597_probe(struct platform_device *pdev) if (pdev->dev.dma_mask) { ret = -EINVAL; - err("dma not support"); + dev_err(&pdev->dev, "dma not supported\n"); goto clean_up; } - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - (char *)hcd_name); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { ret = -ENODEV; - err("platform_get_resource_byname error."); + dev_err(&pdev->dev, "platform_get_resource error.\n"); goto clean_up; } - irq = platform_get_irq(pdev, 0); - if (irq < 0) { + ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!ires) { ret = -ENODEV; - err("platform_get_irq error."); + dev_err(&pdev->dev, + "platform_get_resource IORESOURCE_IRQ error.\n"); goto clean_up; } - reg = ioremap(res->start, resource_len(res)); + irq = ires->start; + irq_trigger = ires->flags & IRQF_TRIGGER_MASK; + + reg = ioremap(res->start, resource_size(res)); if (reg == NULL) { ret = -ENOMEM; - err("ioremap error."); + dev_err(&pdev->dev, "ioremap error.\n"); goto clean_up; } @@ -2278,13 +2324,23 @@ static int __init r8a66597_probe(struct platform_device *pdev) hcd = usb_create_hcd(&r8a66597_hc_driver, &pdev->dev, (char *)hcd_name); if (!hcd) { ret = -ENOMEM; - err("Failed to create hcd"); + dev_err(&pdev->dev, "Failed to create hcd\n"); goto clean_up; } r8a66597 = hcd_to_r8a66597(hcd); memset(r8a66597, 0, sizeof(struct r8a66597)); dev_set_drvdata(&pdev->dev, r8a66597); +#if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) + snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id); + r8a66597->clk = clk_get(&pdev->dev, clk_name); + if (IS_ERR(r8a66597->clk)) { + dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name); + ret = PTR_ERR(r8a66597->clk); + goto clean_up2; + } +#endif + spin_lock_init(&r8a66597->lock); init_timer(&r8a66597->rh_timer); r8a66597->rh_timer.function = r8a66597_timer; @@ -2303,18 +2359,45 @@ static int __init r8a66597_probe(struct platform_device *pdev) INIT_LIST_HEAD(&r8a66597->child_device); hcd->rsrc_start = res->start; - if (irq_sense == INTL) - irq_trigger = IRQF_TRIGGER_LOW; - else - irq_trigger = IRQF_TRIGGER_FALLING; + + /* irq_sense setting on cmdline takes precedence over resource + * settings, so the introduction of irqflags in IRQ resourse + * won't disturb existing setups */ + switch (irq_sense) { + case INTL: + irq_trigger = IRQF_TRIGGER_LOW; + break; + case 0: + irq_trigger = IRQF_TRIGGER_FALLING; + break; + case 0xff: + if (irq_trigger) + irq_sense = (irq_trigger & IRQF_TRIGGER_LOW) ? + INTL : 0; + else { + irq_sense = INTL; + irq_trigger = IRQF_TRIGGER_LOW; + } + break; + default: + dev_err(&pdev->dev, "Unknown irq_sense value.\n"); + } + ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | irq_trigger); if (ret != 0) { - err("Failed to add hcd"); - goto clean_up; + dev_err(&pdev->dev, "Failed to add hcd\n"); + goto clean_up3; } return 0; +clean_up3: +#if defined(CONFIG_SUPERH_ON_CHIP_R8A66597) && defined(CONFIG_HAVE_CLK) + clk_put(r8a66597->clk); +clean_up2: +#endif + usb_put_hcd(hcd); + clean_up: if (reg) iounmap(reg); @@ -2338,7 +2421,8 @@ static int __init r8a66597_init(void) if (usb_disabled()) return -ENODEV; - info("driver %s, %s", hcd_name, DRIVER_VERSION); + printk(KERN_INFO KBUILD_MODNAME ": driver %s, %s\n", hcd_name, + DRIVER_VERSION); return platform_driver_register(&r8a66597_driver); } module_init(r8a66597_init);