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author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-06-02 10:47:03 +0900 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-06-02 10:47:03 +0900 |
commit | e152813ff5fea74094ae296367f477411df1ba24 (patch) | |
tree | 6e8c38a3b83f0f07f75df50793332aa47a81c709 /drivers/usb/gadget/udc | |
parent | 74db22cb3a16dcd782a31236eb139f5865804ae6 (diff) | |
parent | e18b7975c885bc3a938b9a76daf32957ea0235fa (diff) | |
download | op-kernel-dev-e152813ff5fea74094ae296367f477411df1ba24.zip op-kernel-dev-e152813ff5fea74094ae296367f477411df1ba24.tar.gz |
Merge tag 'usb-for-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: patches for v4.2 merge window
- dwc2 adds hibernation support
- preparation for sunxi glue to musb driver
- new ULPI bus
- new ULPI PHY driver for TUSB1210
- musb patches to support multiple DMA engines on same binary
- support for R-Car E2 on renesas_usbhs
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/udc')
-rw-r--r-- | drivers/usb/gadget/udc/atmel_usba_udc.c | 6 | ||||
-rw-r--r-- | drivers/usb/gadget/udc/net2280.c | 140 | ||||
-rw-r--r-- | drivers/usb/gadget/udc/s3c2410_udc.c | 28 |
3 files changed, 124 insertions, 50 deletions
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c index 351d485..4095cce 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.c +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c @@ -704,8 +704,8 @@ static int queue_dma(struct usba_udc *udc, struct usba_ep *ep, unsigned long flags; int ret; - DBG(DBG_DMA, "%s: req l/%u d/%08x %c%c%c\n", - ep->ep.name, req->req.length, req->req.dma, + DBG(DBG_DMA, "%s: req l/%u d/%pad %c%c%c\n", + ep->ep.name, req->req.length, &req->req.dma, req->req.zero ? 'Z' : 'z', req->req.short_not_ok ? 'S' : 's', req->req.no_interrupt ? 'I' : 'i'); @@ -2203,7 +2203,7 @@ static int usba_udc_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int usba_udc_suspend(struct device *dev) { struct usba_udc *udc = dev_get_drvdata(dev); diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c index 9871b90..2bee912 100644 --- a/drivers/usb/gadget/udc/net2280.c +++ b/drivers/usb/gadget/udc/net2280.c @@ -123,6 +123,11 @@ static char *type_string(u8 bmAttributes) #define valid_bit cpu_to_le32(BIT(VALID_BIT)) #define dma_done_ie cpu_to_le32(BIT(DMA_DONE_INTERRUPT_ENABLE)) +static void ep_clear_seqnum(struct net2280_ep *ep); +static void stop_activity(struct net2280 *dev, + struct usb_gadget_driver *driver); +static void ep0_start(struct net2280 *dev); + /*-------------------------------------------------------------------------*/ static inline void enable_pciirqenb(struct net2280_ep *ep) { @@ -142,7 +147,9 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) { struct net2280 *dev; struct net2280_ep *ep; - u32 max, tmp; + u32 max; + u32 tmp = 0; + u32 type; unsigned long flags; static const u32 ep_key[9] = { 1, 0, 1, 0, 1, 1, 0, 1, 0 }; int ret = 0; @@ -198,15 +205,29 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) /* set type, direction, address; reset fifo counters */ writel(BIT(FIFO_FLUSH), &ep->regs->ep_stat); - tmp = (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK); - if (tmp == USB_ENDPOINT_XFER_INT) { + + if ((dev->quirks & PLX_SUPERSPEED) && dev->enhanced_mode) { + tmp = readl(&ep->cfg->ep_cfg); + /* If USB ep number doesn't match hardware ep number */ + if ((tmp & 0xf) != usb_endpoint_num(desc)) { + ret = -EINVAL; + spin_unlock_irqrestore(&dev->lock, flags); + goto print_err; + } + if (ep->is_in) + tmp &= ~USB3380_EP_CFG_MASK_IN; + else + tmp &= ~USB3380_EP_CFG_MASK_OUT; + } + type = (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK); + if (type == USB_ENDPOINT_XFER_INT) { /* erratum 0105 workaround prevents hs NYET */ if (dev->chiprev == 0100 && dev->gadget.speed == USB_SPEED_HIGH && !(desc->bEndpointAddress & USB_DIR_IN)) writel(BIT(CLEAR_NAK_OUT_PACKETS_MODE), &ep->regs->ep_rsp); - } else if (tmp == USB_ENDPOINT_XFER_BULK) { + } else if (type == USB_ENDPOINT_XFER_BULK) { /* catch some particularly blatant driver bugs */ if ((dev->gadget.speed == USB_SPEED_SUPER && max != 1024) || (dev->gadget.speed == USB_SPEED_HIGH && max != 512) || @@ -216,10 +237,10 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) goto print_err; } } - ep->is_iso = (tmp == USB_ENDPOINT_XFER_ISOC); + ep->is_iso = (type == USB_ENDPOINT_XFER_ISOC); /* Enable this endpoint */ if (dev->quirks & PLX_LEGACY) { - tmp <<= ENDPOINT_TYPE; + tmp |= type << ENDPOINT_TYPE; tmp |= desc->bEndpointAddress; /* default full fifo lines */ tmp |= (4 << ENDPOINT_BYTE_COUNT); @@ -228,17 +249,17 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) } else { /* In Legacy mode, only OUT endpoints are used */ if (dev->enhanced_mode && ep->is_in) { - tmp <<= IN_ENDPOINT_TYPE; + tmp |= type << IN_ENDPOINT_TYPE; tmp |= BIT(IN_ENDPOINT_ENABLE); - /* Not applicable to Legacy */ - tmp |= BIT(ENDPOINT_DIRECTION); } else { - tmp <<= OUT_ENDPOINT_TYPE; + tmp |= type << OUT_ENDPOINT_TYPE; tmp |= BIT(OUT_ENDPOINT_ENABLE); tmp |= (ep->is_in << ENDPOINT_DIRECTION); } - tmp |= usb_endpoint_num(desc); + tmp |= (4 << ENDPOINT_BYTE_COUNT); + if (!dev->enhanced_mode) + tmp |= usb_endpoint_num(desc); tmp |= (ep->ep.maxburst << MAX_BURST_SIZE); } @@ -256,6 +277,8 @@ net2280_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) BIT(CLEAR_NAK_OUT_PACKETS_MODE), &ep->regs->ep_rsp); } + if (dev->quirks & PLX_SUPERSPEED) + ep_clear_seqnum(ep); writel(tmp, &ep->cfg->ep_cfg); /* enable irqs */ @@ -441,6 +464,13 @@ static void ep_reset_338x(struct net2280_regs __iomem *regs, BIT(DATA_PACKET_TRANSMITTED_INTERRUPT) | BIT(DATA_OUT_PING_TOKEN_INTERRUPT) | BIT(DATA_IN_TOKEN_INTERRUPT), &ep->regs->ep_stat); + + tmp = readl(&ep->cfg->ep_cfg); + if (ep->is_in) + tmp &= ~USB3380_EP_CFG_MASK_IN; + else + tmp &= ~USB3380_EP_CFG_MASK_OUT; + writel(tmp, &ep->cfg->ep_cfg); } static void nuke(struct net2280_ep *); @@ -1468,11 +1498,14 @@ static int net2280_pullup(struct usb_gadget *_gadget, int is_on) spin_lock_irqsave(&dev->lock, flags); tmp = readl(&dev->usb->usbctl); dev->softconnect = (is_on != 0); - if (is_on) - tmp |= BIT(USB_DETECT_ENABLE); - else - tmp &= ~BIT(USB_DETECT_ENABLE); - writel(tmp, &dev->usb->usbctl); + if (is_on) { + ep0_start(dev); + writel(tmp | BIT(USB_DETECT_ENABLE), &dev->usb->usbctl); + } else { + writel(tmp & ~BIT(USB_DETECT_ENABLE), &dev->usb->usbctl); + stop_activity(dev, dev->driver); + } + spin_unlock_irqrestore(&dev->lock, flags); return 0; @@ -1860,8 +1893,8 @@ static void defect7374_enable_data_eps_zero(struct net2280 *dev) tmp = ((0 << ENDPOINT_NUMBER) | BIT(ENDPOINT_DIRECTION) | (2 << OUT_ENDPOINT_TYPE) | (2 << IN_ENDPOINT_TYPE) | ((dev->enhanced_mode) ? - BIT(OUT_ENDPOINT_ENABLE) : BIT(ENDPOINT_ENABLE)) | - BIT(IN_ENDPOINT_ENABLE)); + BIT(OUT_ENDPOINT_ENABLE) | BIT(IN_ENDPOINT_ENABLE) : + BIT(ENDPOINT_ENABLE))); for (i = 1; i < 5; i++) writel(tmp, &dev->ep[i].cfg->ep_cfg); @@ -1975,9 +2008,15 @@ static void usb_reset_338x(struct net2280 *dev) /* clear old dma and irq state */ for (tmp = 0; tmp < 4; tmp++) { struct net2280_ep *ep = &dev->ep[tmp + 1]; + struct net2280_dma_regs __iomem *dma; - if (ep->dma) + if (ep->dma) { abort_dma(ep); + } else { + dma = &dev->dma[tmp]; + writel(BIT(DMA_ABORT), &dma->dmastat); + writel(0, &dma->dmactl); + } } writel(~0, &dev->regs->irqstat0), writel(~0, &dev->regs->irqstat1); @@ -2065,6 +2104,12 @@ static void usb_reinit_338x(struct net2280 *dev) if (dev->enhanced_mode) { ep->cfg = &dev->epregs[ne[i]]; + /* + * Set USB endpoint number, hardware allows same number + * in both directions. + */ + if (i > 0 && i < 5) + writel(ne[i], &ep->cfg->ep_cfg); ep->regs = (struct net2280_ep_regs __iomem *) (((void __iomem *)&dev->epregs[ne[i]]) + ep_reg_addr[i]); @@ -2874,6 +2919,26 @@ next_endpoints3: return; } +static void usb338x_handle_ep_intr(struct net2280 *dev, u32 stat0) +{ + u32 index; + u32 bit; + + for (index = 0; index < ARRAY_SIZE(ep_bit); index++) { + bit = BIT(ep_bit[index]); + + if (!stat0) + break; + + if (!(stat0 & bit)) + continue; + + stat0 &= ~bit; + + handle_ep_small(&dev->ep[index]); + } +} + static void handle_stat0_irqs(struct net2280 *dev, u32 stat) { struct net2280_ep *ep; @@ -3098,20 +3163,31 @@ do_stall: #undef w_length next_endpoints: - /* endpoint data irq ? */ - scratch = stat & 0x7f; - stat &= ~0x7f; - for (num = 0; scratch; num++) { - u32 t; - - /* do this endpoint's FIFO and queue need tending? */ - t = BIT(num); - if ((scratch & t) == 0) - continue; - scratch ^= t; + if ((dev->quirks & PLX_SUPERSPEED) && dev->enhanced_mode) { + u32 mask = (BIT(ENDPOINT_0_INTERRUPT) | + USB3380_IRQSTAT0_EP_INTR_MASK_IN | + USB3380_IRQSTAT0_EP_INTR_MASK_OUT); + + if (stat & mask) { + usb338x_handle_ep_intr(dev, stat & mask); + stat &= ~mask; + } + } else { + /* endpoint data irq ? */ + scratch = stat & 0x7f; + stat &= ~0x7f; + for (num = 0; scratch; num++) { + u32 t; + + /* do this endpoint's FIFO and queue need tending? */ + t = BIT(num); + if ((scratch & t) == 0) + continue; + scratch ^= t; - ep = &dev->ep[num]; - handle_ep_small(ep); + ep = &dev->ep[num]; + handle_ep_small(ep); + } } if (stat) diff --git a/drivers/usb/gadget/udc/s3c2410_udc.c b/drivers/usb/gadget/udc/s3c2410_udc.c index b808951..2979575 100644 --- a/drivers/usb/gadget/udc/s3c2410_udc.c +++ b/drivers/usb/gadget/udc/s3c2410_udc.c @@ -92,40 +92,38 @@ static struct s3c2410_udc_mach_info *udc_info; static uint32_t s3c2410_ticks = 0; -static int dprintk(int level, const char *fmt, ...) +__printf(2, 3) +static void dprintk(int level, const char *fmt, ...) { - static char printk_buf[1024]; static long prevticks; static int invocation; + struct va_format vaf; va_list args; - int len; if (level > USB_S3C2410_DEBUG_LEVEL) - return 0; + return; + + va_start(args, fmt); + + vaf.fmt = fmt; + vaf.va = &args; if (s3c2410_ticks != prevticks) { prevticks = s3c2410_ticks; invocation = 0; } - len = scnprintf(printk_buf, - sizeof(printk_buf), "%1lu.%02d USB: ", - prevticks, invocation++); + pr_debug("%1lu.%02d USB: %pV", prevticks, invocation++, &vaf); - va_start(args, fmt); - len = vscnprintf(printk_buf+len, - sizeof(printk_buf)-len, fmt, args); va_end(args); - - pr_debug("%s", printk_buf); - return len; } #else -static int dprintk(int level, const char *fmt, ...) +__printf(2, 3) +static void dprintk(int level, const char *fmt, ...) { - return 0; } #endif + static int s3c2410_udc_debugfs_seq_show(struct seq_file *m, void *p) { u32 addr_reg, pwr_reg, ep_int_reg, usb_int_reg; |