diff options
Diffstat (limited to 'drivers/usb/gadget')
34 files changed, 640 insertions, 349 deletions
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index e55fef5..770b3ea 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -254,6 +254,7 @@ config USB_PXA25X_SMALL config USB_GADGET_PXA27X boolean "PXA 27x" depends on ARCH_PXA && PXA27x + select USB_OTG_UTILS help Intel's PXA 27x series XScale ARM v5TE processors include an integrated full speed USB 1.1 device controller. diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index abf8192..826f3ad 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -551,7 +551,7 @@ udc_alloc_request(struct usb_ep *usbep, gfp_t gfp) dma_desc->status = AMD_ADDBITS(dma_desc->status, UDC_DMA_STP_STS_BS_HOST_BUSY, UDC_DMA_STP_STS_BS); - dma_desc->bufptr = __constant_cpu_to_le32(DMA_DONT_USE); + dma_desc->bufptr = cpu_to_le32(DMA_DONT_USE); req->td_data = dma_desc; req->td_data_last = NULL; req->chain_len = 1; diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c index 65b03e3..c22fab1 100644 --- a/drivers/usb/gadget/atmel_usba_udc.c +++ b/drivers/usb/gadget/atmel_usba_udc.c @@ -1017,7 +1017,7 @@ static struct usb_endpoint_descriptor usba_ep0_desc = { .bDescriptorType = USB_DT_ENDPOINT, .bEndpointAddress = 0, .bmAttributes = USB_ENDPOINT_XFER_CONTROL, - .wMaxPacketSize = __constant_cpu_to_le16(64), + .wMaxPacketSize = cpu_to_le16(64), /* FIXME: I have no idea what to put here */ .bInterval = 1, }; @@ -1207,21 +1207,21 @@ static int do_test_mode(struct usba_udc *udc) /* Avoid overly long expressions */ static inline bool feature_is_dev_remote_wakeup(struct usb_ctrlrequest *crq) { - if (crq->wValue == __constant_cpu_to_le16(USB_DEVICE_REMOTE_WAKEUP)) + if (crq->wValue == cpu_to_le16(USB_DEVICE_REMOTE_WAKEUP)) return true; return false; } static inline bool feature_is_dev_test_mode(struct usb_ctrlrequest *crq) { - if (crq->wValue == __constant_cpu_to_le16(USB_DEVICE_TEST_MODE)) + if (crq->wValue == cpu_to_le16(USB_DEVICE_TEST_MODE)) return true; return false; } static inline bool feature_is_ep_halt(struct usb_ctrlrequest *crq) { - if (crq->wValue == __constant_cpu_to_le16(USB_ENDPOINT_HALT)) + if (crq->wValue == cpu_to_le16(USB_ENDPOINT_HALT)) return true; return false; } @@ -1239,7 +1239,7 @@ static int handle_ep0_setup(struct usba_udc *udc, struct usba_ep *ep, status = cpu_to_le16(udc->devstatus); } else if (crq->bRequestType == (USB_DIR_IN | USB_RECIP_INTERFACE)) { - status = __constant_cpu_to_le16(0); + status = cpu_to_le16(0); } else if (crq->bRequestType == (USB_DIR_IN | USB_RECIP_ENDPOINT)) { struct usba_ep *target; @@ -1250,12 +1250,12 @@ static int handle_ep0_setup(struct usba_udc *udc, struct usba_ep *ep, status = 0; if (is_stalled(udc, target)) - status |= __constant_cpu_to_le16(1); + status |= cpu_to_le16(1); } else goto delegate; /* Write directly to the FIFO. No queueing is done. */ - if (crq->wLength != __constant_cpu_to_le16(sizeof(status))) + if (crq->wLength != cpu_to_le16(sizeof(status))) goto stall; ep->state = DATA_STAGE_IN; __raw_writew(status, ep->fifo); @@ -1274,7 +1274,7 @@ static int handle_ep0_setup(struct usba_udc *udc, struct usba_ep *ep, } else if (crq->bRequestType == USB_RECIP_ENDPOINT) { struct usba_ep *target; - if (crq->wLength != __constant_cpu_to_le16(0) + if (crq->wLength != cpu_to_le16(0) || !feature_is_ep_halt(crq)) goto stall; target = get_ep_by_addr(udc, le16_to_cpu(crq->wIndex)); @@ -1308,7 +1308,7 @@ static int handle_ep0_setup(struct usba_udc *udc, struct usba_ep *ep, } else if (crq->bRequestType == USB_RECIP_ENDPOINT) { struct usba_ep *target; - if (crq->wLength != __constant_cpu_to_le16(0) + if (crq->wLength != cpu_to_le16(0) || !feature_is_ep_halt(crq)) goto stall; @@ -1514,7 +1514,7 @@ restart: */ ep->state = DATA_STAGE_IN; } else { - if (crq.crq.wLength != __constant_cpu_to_le16(0)) + if (crq.crq.wLength != cpu_to_le16(0)) ep->state = DATA_STAGE_OUT; else ep->state = STATUS_STAGE_IN; diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c index 5495b17..928137d 100644 --- a/drivers/usb/gadget/cdc2.c +++ b/drivers/usb/gadget/cdc2.c @@ -66,7 +66,7 @@ static struct usb_device_descriptor device_desc = { .bLength = sizeof device_desc, .bDescriptorType = USB_DT_DEVICE, - .bcdUSB = __constant_cpu_to_le16(0x0200), + .bcdUSB = cpu_to_le16(0x0200), .bDeviceClass = USB_CLASS_COMM, .bDeviceSubClass = 0, @@ -74,8 +74,8 @@ static struct usb_device_descriptor device_desc = { /* .bMaxPacketSize0 = f(hardware) */ /* Vendor and product id can be overridden by module parameters. */ - .idVendor = __constant_cpu_to_le16(CDC_VENDOR_NUM), - .idProduct = __constant_cpu_to_le16(CDC_PRODUCT_NUM), + .idVendor = cpu_to_le16(CDC_VENDOR_NUM), + .idProduct = cpu_to_le16(CDC_PRODUCT_NUM), /* .bcdDevice = f(hardware) */ /* .iManufacturer = DYNAMIC */ /* .iProduct = DYNAMIC */ @@ -193,7 +193,7 @@ static int __init cdc_bind(struct usb_composite_dev *cdev) gadget->name, cdc_config_driver.label); device_desc.bcdDevice = - __constant_cpu_to_le16(0x0300 | 0x0099); + cpu_to_le16(0x0300 | 0x0099); } diff --git a/drivers/usb/gadget/ci13xxx_udc.c b/drivers/usb/gadget/ci13xxx_udc.c index bebf911..22c6596 100644 --- a/drivers/usb/gadget/ci13xxx_udc.c +++ b/drivers/usb/gadget/ci13xxx_udc.c @@ -56,7 +56,6 @@ #include <linux/dma-mapping.h> #include <linux/init.h> #include <linux/interrupt.h> -#include <linux/interrupt.h> #include <linux/io.h> #include <linux/irq.h> #include <linux/kernel.h> @@ -2626,7 +2625,7 @@ static int udc_probe(struct device *dev, void __iomem *regs, const char *name) INIT_LIST_HEAD(&udc->gadget.ep_list); udc->gadget.ep0 = NULL; - strcpy(udc->gadget.dev.bus_id, "gadget"); + dev_set_name(&udc->gadget.dev, "gadget"); udc->gadget.dev.dma_mask = dev->dma_mask; udc->gadget.dev.parent = dev; udc->gadget.dev.release = udc_release; diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 5d11c29..59e8523 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -149,16 +149,17 @@ done: int usb_function_deactivate(struct usb_function *function) { struct usb_composite_dev *cdev = function->config->cdev; + unsigned long flags; int status = 0; - spin_lock(&cdev->lock); + spin_lock_irqsave(&cdev->lock, flags); if (cdev->deactivations == 0) status = usb_gadget_disconnect(cdev->gadget); if (status == 0) cdev->deactivations++; - spin_unlock(&cdev->lock); + spin_unlock_irqrestore(&cdev->lock, flags); return status; } @@ -1013,7 +1014,7 @@ composite_suspend(struct usb_gadget *gadget) struct usb_composite_dev *cdev = get_gadget_data(gadget); struct usb_function *f; - /* REVISIT: should we have config and device level + /* REVISIT: should we have config level * suspend/resume callbacks? */ DBG(cdev, "suspend\n"); @@ -1023,6 +1024,8 @@ composite_suspend(struct usb_gadget *gadget) f->suspend(f); } } + if (composite->suspend) + composite->suspend(cdev); } static void @@ -1031,10 +1034,12 @@ composite_resume(struct usb_gadget *gadget) struct usb_composite_dev *cdev = get_gadget_data(gadget); struct usb_function *f; - /* REVISIT: should we have config and device level + /* REVISIT: should we have config level * suspend/resume callbacks? */ DBG(cdev, "resume\n"); + if (composite->resume) + composite->resume(cdev); if (cdev->config) { list_for_each_entry(f, &cdev->config->functions, list) { if (f->resume) diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 9064696..a56b24d 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -1437,7 +1437,7 @@ restart: } if (urb->transfer_buffer_length > 1) buf [1] = 0; - urb->actual_length = min (2, + urb->actual_length = min_t(u32, 2, urb->transfer_buffer_length); value = 0; status = 0; @@ -1626,7 +1626,7 @@ static int dummy_hub_control ( hub_descriptor ((struct usb_hub_descriptor *) buf); break; case GetHubStatus: - *(__le32 *) buf = __constant_cpu_to_le32 (0); + *(__le32 *) buf = cpu_to_le32 (0); break; case GetPortStatus: if (wIndex != 1) diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c index a36b117..cd0914e 100644 --- a/drivers/usb/gadget/epautoconf.c +++ b/drivers/usb/gadget/epautoconf.c @@ -148,7 +148,7 @@ ep_matches ( return 0; /* BOTH: "high bandwidth" works only at high speed */ - if ((desc->wMaxPacketSize & __constant_cpu_to_le16(3<<11))) { + if ((desc->wMaxPacketSize & cpu_to_le16(3<<11))) { if (!gadget->is_dualspeed) return 0; /* configure your hardware with enough buffering!! */ diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index 37252d0..d006dc6 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -156,7 +156,7 @@ static struct usb_device_descriptor device_desc = { .bLength = sizeof device_desc, .bDescriptorType = USB_DT_DEVICE, - .bcdUSB = __constant_cpu_to_le16 (0x0200), + .bcdUSB = cpu_to_le16 (0x0200), .bDeviceClass = USB_CLASS_COMM, .bDeviceSubClass = 0, @@ -167,8 +167,8 @@ static struct usb_device_descriptor device_desc = { * we support. (As does bNumConfigurations.) These values can * also be overridden by module parameters. */ - .idVendor = __constant_cpu_to_le16 (CDC_VENDOR_NUM), - .idProduct = __constant_cpu_to_le16 (CDC_PRODUCT_NUM), + .idVendor = cpu_to_le16 (CDC_VENDOR_NUM), + .idProduct = cpu_to_le16 (CDC_PRODUCT_NUM), /* .bcdDevice = f(hardware) */ /* .iManufacturer = DYNAMIC */ /* .iProduct = DYNAMIC */ @@ -318,7 +318,7 @@ static int __init eth_bind(struct usb_composite_dev *cdev) gadget->name, eth_config_driver.label); device_desc.bcdDevice = - __constant_cpu_to_le16(0x0300 | 0x0099); + cpu_to_le16(0x0300 | 0x0099); } diff --git a/drivers/usb/gadget/f_acm.c b/drivers/usb/gadget/f_acm.c index c1d34df..7953948 100644 --- a/drivers/usb/gadget/f_acm.c +++ b/drivers/usb/gadget/f_acm.c @@ -125,7 +125,7 @@ static struct usb_cdc_header_desc acm_header_desc __initdata = { .bLength = sizeof(acm_header_desc), .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubType = USB_CDC_HEADER_TYPE, - .bcdCDC = __constant_cpu_to_le16(0x0110), + .bcdCDC = cpu_to_le16(0x0110), }; static struct usb_cdc_call_mgmt_descriptor @@ -159,7 +159,7 @@ static struct usb_endpoint_descriptor acm_fs_notify_desc __initdata = { .bDescriptorType = USB_DT_ENDPOINT, .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = __constant_cpu_to_le16(GS_NOTIFY_MAXPACKET), + .wMaxPacketSize = cpu_to_le16(GS_NOTIFY_MAXPACKET), .bInterval = 1 << GS_LOG2_NOTIFY_INTERVAL, }; @@ -197,7 +197,7 @@ static struct usb_endpoint_descriptor acm_hs_notify_desc __initdata = { .bDescriptorType = USB_DT_ENDPOINT, .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = __constant_cpu_to_le16(GS_NOTIFY_MAXPACKET), + .wMaxPacketSize = cpu_to_le16(GS_NOTIFY_MAXPACKET), .bInterval = GS_LOG2_NOTIFY_INTERVAL+4, }; @@ -205,14 +205,14 @@ static struct usb_endpoint_descriptor acm_hs_in_desc __initdata = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_endpoint_descriptor acm_hs_out_desc __initdata = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_descriptor_header *acm_hs_function[] __initdata = { diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c index 4ae5799..ecf5bdd 100644 --- a/drivers/usb/gadget/f_ecm.c +++ b/drivers/usb/gadget/f_ecm.c @@ -130,7 +130,7 @@ static struct usb_cdc_header_desc ecm_header_desc __initdata = { .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubType = USB_CDC_HEADER_TYPE, - .bcdCDC = __constant_cpu_to_le16(0x0110), + .bcdCDC = cpu_to_le16(0x0110), }; static struct usb_cdc_union_desc ecm_union_desc __initdata = { @@ -148,9 +148,9 @@ static struct usb_cdc_ether_desc ecm_desc __initdata = { /* this descriptor actually adds value, surprise! */ /* .iMACAddress = DYNAMIC */ - .bmEthernetStatistics = __constant_cpu_to_le32(0), /* no statistics */ - .wMaxSegmentSize = __constant_cpu_to_le16(ETH_FRAME_LEN), - .wNumberMCFilters = __constant_cpu_to_le16(0), + .bmEthernetStatistics = cpu_to_le32(0), /* no statistics */ + .wMaxSegmentSize = cpu_to_le16(ETH_FRAME_LEN), + .wNumberMCFilters = cpu_to_le16(0), .bNumberPowerFilters = 0, }; @@ -192,7 +192,7 @@ static struct usb_endpoint_descriptor fs_ecm_notify_desc __initdata = { .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = __constant_cpu_to_le16(ECM_STATUS_BYTECOUNT), + .wMaxPacketSize = cpu_to_le16(ECM_STATUS_BYTECOUNT), .bInterval = 1 << LOG2_STATUS_INTERVAL_MSEC, }; @@ -236,7 +236,7 @@ static struct usb_endpoint_descriptor hs_ecm_notify_desc __initdata = { .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = __constant_cpu_to_le16(ECM_STATUS_BYTECOUNT), + .wMaxPacketSize = cpu_to_le16(ECM_STATUS_BYTECOUNT), .bInterval = LOG2_STATUS_INTERVAL_MSEC + 4, }; static struct usb_endpoint_descriptor hs_ecm_in_desc __initdata = { @@ -245,7 +245,7 @@ static struct usb_endpoint_descriptor hs_ecm_in_desc __initdata = { .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_endpoint_descriptor hs_ecm_out_desc __initdata = { @@ -254,7 +254,7 @@ static struct usb_endpoint_descriptor hs_ecm_out_desc __initdata = { .bEndpointAddress = USB_DIR_OUT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_descriptor_header *ecm_hs_function[] __initdata = { diff --git a/drivers/usb/gadget/f_loopback.c b/drivers/usb/gadget/f_loopback.c index 8affe1d..eb6ddfc 100644 --- a/drivers/usb/gadget/f_loopback.c +++ b/drivers/usb/gadget/f_loopback.c @@ -100,7 +100,7 @@ static struct usb_endpoint_descriptor hs_loop_source_desc = { .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_endpoint_descriptor hs_loop_sink_desc = { @@ -108,7 +108,7 @@ static struct usb_endpoint_descriptor hs_loop_sink_desc = { .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_descriptor_header *hs_loopback_descs[] = { @@ -359,7 +359,7 @@ static struct usb_configuration loopback_driver = { * loopback_add - add a loopback testing configuration to a device * @cdev: the device to support the loopback configuration */ -int __init loopback_add(struct usb_composite_dev *cdev) +int __init loopback_add(struct usb_composite_dev *cdev, bool autoresume) { int id; @@ -372,6 +372,10 @@ int __init loopback_add(struct usb_composite_dev *cdev) loopback_intf.iInterface = id; loopback_driver.iConfiguration = id; + /* support autoresume for remote wakeup testing */ + if (autoresume) + sourcesink_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP; + /* support OTG systems */ if (gadget_is_otg(cdev->gadget)) { loopback_driver.descriptors = otg_desc; diff --git a/drivers/usb/gadget/f_obex.c b/drivers/usb/gadget/f_obex.c index 38aa896..46d6266 100644 --- a/drivers/usb/gadget/f_obex.c +++ b/drivers/usb/gadget/f_obex.c @@ -123,7 +123,7 @@ static struct usb_cdc_header_desc obex_cdc_header_desc __initdata = { .bLength = sizeof(obex_cdc_header_desc), .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubType = USB_CDC_HEADER_TYPE, - .bcdCDC = __constant_cpu_to_le16(0x0120), + .bcdCDC = cpu_to_le16(0x0120), }; static struct usb_cdc_union_desc obex_cdc_union_desc __initdata = { @@ -138,7 +138,7 @@ static struct usb_cdc_obex_desc obex_desc __initdata = { .bLength = sizeof(obex_desc), .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubType = USB_CDC_OBEX_TYPE, - .bcdVersion = __constant_cpu_to_le16(0x0100), + .bcdVersion = cpu_to_le16(0x0100), }; /* High-Speed Support */ @@ -149,7 +149,7 @@ static struct usb_endpoint_descriptor obex_hs_ep_out_desc __initdata = { .bEndpointAddress = USB_DIR_OUT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_endpoint_descriptor obex_hs_ep_in_desc __initdata = { @@ -158,7 +158,7 @@ static struct usb_endpoint_descriptor obex_hs_ep_in_desc __initdata = { .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_descriptor_header *hs_function[] __initdata = { diff --git a/drivers/usb/gadget/f_phonet.c b/drivers/usb/gadget/f_phonet.c index c0916c7..c1abeb8 100644 --- a/drivers/usb/gadget/f_phonet.c +++ b/drivers/usb/gadget/f_phonet.c @@ -79,7 +79,7 @@ pn_header_desc = { .bLength = sizeof pn_header_desc, .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubType = USB_CDC_HEADER_TYPE, - .bcdCDC = __constant_cpu_to_le16(0x0110), + .bcdCDC = cpu_to_le16(0x0110), }; static const struct usb_cdc_header_desc @@ -87,7 +87,7 @@ pn_phonet_desc = { .bLength = sizeof pn_phonet_desc, .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubType = USB_CDC_PHONET_TYPE, - .bcdCDC = __constant_cpu_to_le16(0x1505), /* ??? */ + .bcdCDC = cpu_to_le16(0x1505), /* ??? */ }; static struct usb_cdc_union_desc @@ -138,7 +138,7 @@ pn_hs_sink_desc = { .bEndpointAddress = USB_DIR_OUT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_endpoint_descriptor @@ -157,7 +157,7 @@ pn_hs_source_desc = { .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_descriptor_header *fs_pn_function[] = { diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index 3a8bb53..3279a47 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -137,7 +137,7 @@ static struct usb_cdc_header_desc header_desc __initdata = { .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubType = USB_CDC_HEADER_TYPE, - .bcdCDC = __constant_cpu_to_le16(0x0110), + .bcdCDC = cpu_to_le16(0x0110), }; static struct usb_cdc_call_mgmt_descriptor call_mgmt_descriptor __initdata = { @@ -187,7 +187,7 @@ static struct usb_endpoint_descriptor fs_notify_desc __initdata = { .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = __constant_cpu_to_le16(STATUS_BYTECOUNT), + .wMaxPacketSize = cpu_to_le16(STATUS_BYTECOUNT), .bInterval = 1 << LOG2_STATUS_INTERVAL_MSEC, }; @@ -230,7 +230,7 @@ static struct usb_endpoint_descriptor hs_notify_desc __initdata = { .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = __constant_cpu_to_le16(STATUS_BYTECOUNT), + .wMaxPacketSize = cpu_to_le16(STATUS_BYTECOUNT), .bInterval = LOG2_STATUS_INTERVAL_MSEC + 4, }; static struct usb_endpoint_descriptor hs_in_desc __initdata = { @@ -239,7 +239,7 @@ static struct usb_endpoint_descriptor hs_in_desc __initdata = { .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_endpoint_descriptor hs_out_desc __initdata = { @@ -248,7 +248,7 @@ static struct usb_endpoint_descriptor hs_out_desc __initdata = { .bEndpointAddress = USB_DIR_OUT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_descriptor_header *eth_hs_function[] __initdata = { @@ -437,7 +437,7 @@ invalid: DBG(cdev, "rndis req%02x.%02x v%04x i%04x l%d\n", ctrl->bRequestType, ctrl->bRequest, w_value, w_index, w_length); - req->zero = 0; + req->zero = (value < w_length); req->length = value; value = usb_ep_queue(cdev->gadget->ep0, req, GFP_ATOMIC); if (value < 0) diff --git a/drivers/usb/gadget/f_serial.c b/drivers/usb/gadget/f_serial.c index fe5674db..db0aa93 100644 --- a/drivers/usb/gadget/f_serial.c +++ b/drivers/usb/gadget/f_serial.c @@ -89,14 +89,14 @@ static struct usb_endpoint_descriptor gser_hs_in_desc __initdata = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_endpoint_descriptor gser_hs_out_desc __initdata = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_descriptor_header *gser_hs_function[] __initdata = { diff --git a/drivers/usb/gadget/f_sourcesink.c b/drivers/usb/gadget/f_sourcesink.c index dc84d26..bffe91d 100644 --- a/drivers/usb/gadget/f_sourcesink.c +++ b/drivers/usb/gadget/f_sourcesink.c @@ -59,7 +59,6 @@ struct f_sourcesink { struct usb_ep *in_ep; struct usb_ep *out_ep; - struct timer_list resume; }; static inline struct f_sourcesink *func_to_ss(struct usb_function *f) @@ -67,10 +66,6 @@ static inline struct f_sourcesink *func_to_ss(struct usb_function *f) return container_of(f, struct f_sourcesink, function); } -static unsigned autoresume; -module_param(autoresume, uint, 0); -MODULE_PARM_DESC(autoresume, "zero, or seconds before remote wakeup"); - static unsigned pattern; module_param(pattern, uint, 0); MODULE_PARM_DESC(pattern, "0 = all zeroes, 1 = mod63 "); @@ -118,7 +113,7 @@ static struct usb_endpoint_descriptor hs_source_desc = { .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_endpoint_descriptor hs_sink_desc = { @@ -126,7 +121,7 @@ static struct usb_endpoint_descriptor hs_sink_desc = { .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_descriptor_header *hs_source_sink_descs[] = { @@ -155,21 +150,6 @@ static struct usb_gadget_strings *sourcesink_strings[] = { /*-------------------------------------------------------------------------*/ -static void sourcesink_autoresume(unsigned long _c) -{ - struct usb_composite_dev *cdev = (void *)_c; - struct usb_gadget *g = cdev->gadget; - - /* Normally the host would be woken up for something - * more significant than just a timer firing; likely - * because of some direct user request. - */ - if (g->speed != USB_SPEED_UNKNOWN) { - int status = usb_gadget_wakeup(g); - DBG(cdev, "%s --> %d\n", __func__, status); - } -} - static int __init sourcesink_bind(struct usb_configuration *c, struct usb_function *f) { @@ -198,9 +178,6 @@ autoconf_fail: goto autoconf_fail; ss->out_ep->driver_data = cdev; /* claim */ - setup_timer(&ss->resume, sourcesink_autoresume, - (unsigned long) c->cdev); - /* support high speed hardware */ if (gadget_is_dualspeed(c->cdev->gadget)) { hs_source_desc.bEndpointAddress = @@ -359,7 +336,6 @@ static void disable_source_sink(struct f_sourcesink *ss) cdev = ss->function.config->cdev; disable_endpoints(cdev, ss->in_ep, ss->out_ep); - del_timer(&ss->resume); VDBG(cdev, "%s disabled\n", ss->function.name); } @@ -426,30 +402,6 @@ static void sourcesink_disable(struct usb_function *f) disable_source_sink(ss); } -static void sourcesink_suspend(struct usb_function *f) -{ - struct f_sourcesink *ss = func_to_ss(f); - struct usb_composite_dev *cdev = f->config->cdev; - - if (cdev->gadget->speed == USB_SPEED_UNKNOWN) - return; - - if (autoresume) { - mod_timer(&ss->resume, jiffies + (HZ * autoresume)); - DBG(cdev, "suspend, wakeup in %d seconds\n", autoresume); - } else - DBG(cdev, "%s\n", __func__); -} - -static void sourcesink_resume(struct usb_function *f) -{ - struct f_sourcesink *ss = func_to_ss(f); - struct usb_composite_dev *cdev = f->config->cdev; - - DBG(cdev, "%s\n", __func__); - del_timer(&ss->resume); -} - /*-------------------------------------------------------------------------*/ static int __init sourcesink_bind_config(struct usb_configuration *c) @@ -467,8 +419,6 @@ static int __init sourcesink_bind_config(struct usb_configuration *c) ss->function.unbind = sourcesink_unbind; ss->function.set_alt = sourcesink_set_alt; ss->function.disable = sourcesink_disable; - ss->function.suspend = sourcesink_suspend; - ss->function.resume = sourcesink_resume; status = usb_add_function(c, &ss->function); if (status) @@ -559,7 +509,7 @@ static struct usb_configuration sourcesink_driver = { * sourcesink_add - add a source/sink testing configuration to a device * @cdev: the device to support the configuration */ -int __init sourcesink_add(struct usb_composite_dev *cdev) +int __init sourcesink_add(struct usb_composite_dev *cdev, bool autoresume) { int id; diff --git a/drivers/usb/gadget/f_subset.c b/drivers/usb/gadget/f_subset.c index fe18328..a9c98fd 100644 --- a/drivers/usb/gadget/f_subset.c +++ b/drivers/usb/gadget/f_subset.c @@ -108,7 +108,7 @@ static struct usb_cdc_header_desc mdlm_header_desc __initdata = { .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubType = USB_CDC_HEADER_TYPE, - .bcdCDC = __constant_cpu_to_le16(0x0110), + .bcdCDC = cpu_to_le16(0x0110), }; static struct usb_cdc_mdlm_desc mdlm_desc __initdata = { @@ -116,7 +116,7 @@ static struct usb_cdc_mdlm_desc mdlm_desc __initdata = { .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubType = USB_CDC_MDLM_TYPE, - .bcdVersion = __constant_cpu_to_le16(0x0100), + .bcdVersion = cpu_to_le16(0x0100), .bGUID = { 0x5d, 0x34, 0xcf, 0x66, 0x11, 0x18, 0x11, 0xd6, 0xa2, 0x1a, 0x00, 0x01, 0x02, 0xca, 0x9a, 0x7f, @@ -144,9 +144,9 @@ static struct usb_cdc_ether_desc ether_desc __initdata = { /* this descriptor actually adds value, surprise! */ /* .iMACAddress = DYNAMIC */ - .bmEthernetStatistics = __constant_cpu_to_le32(0), /* no statistics */ - .wMaxSegmentSize = __constant_cpu_to_le16(ETH_FRAME_LEN), - .wNumberMCFilters = __constant_cpu_to_le16(0), + .bmEthernetStatistics = cpu_to_le32(0), /* no statistics */ + .wMaxSegmentSize = cpu_to_le16(ETH_FRAME_LEN), + .wNumberMCFilters = cpu_to_le16(0), .bNumberPowerFilters = 0, }; @@ -186,7 +186,7 @@ static struct usb_endpoint_descriptor hs_subset_in_desc __initdata = { .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_endpoint_descriptor hs_subset_out_desc __initdata = { @@ -194,7 +194,7 @@ static struct usb_endpoint_descriptor hs_subset_out_desc __initdata = { .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_descriptor_header *hs_eth_function[] __initdata = { diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index 1ab9dac..d3c2464 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -847,13 +847,13 @@ device_desc = { .bLength = sizeof device_desc, .bDescriptorType = USB_DT_DEVICE, - .bcdUSB = __constant_cpu_to_le16(0x0200), + .bcdUSB = cpu_to_le16(0x0200), .bDeviceClass = USB_CLASS_PER_INTERFACE, /* The next three values can be overridden by module parameters */ - .idVendor = __constant_cpu_to_le16(DRIVER_VENDOR_ID), - .idProduct = __constant_cpu_to_le16(DRIVER_PRODUCT_ID), - .bcdDevice = __constant_cpu_to_le16(0xffff), + .idVendor = cpu_to_le16(DRIVER_VENDOR_ID), + .idProduct = cpu_to_le16(DRIVER_PRODUCT_ID), + .bcdDevice = cpu_to_le16(0xffff), .iManufacturer = STRING_MANUFACTURER, .iProduct = STRING_PRODUCT, @@ -926,7 +926,7 @@ fs_intr_in_desc = { .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = __constant_cpu_to_le16(2), + .wMaxPacketSize = cpu_to_le16(2), .bInterval = 32, // frames -> 32 ms }; @@ -954,7 +954,7 @@ dev_qualifier = { .bLength = sizeof dev_qualifier, .bDescriptorType = USB_DT_DEVICE_QUALIFIER, - .bcdUSB = __constant_cpu_to_le16(0x0200), + .bcdUSB = cpu_to_le16(0x0200), .bDeviceClass = USB_CLASS_PER_INTERFACE, .bNumConfigurations = 1, @@ -967,7 +967,7 @@ hs_bulk_in_desc = { /* bEndpointAddress copied from fs_bulk_in_desc during fsg_bind() */ .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), }; static struct usb_endpoint_descriptor @@ -977,7 +977,7 @@ hs_bulk_out_desc = { /* bEndpointAddress copied from fs_bulk_out_desc during fsg_bind() */ .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512), + .wMaxPacketSize = cpu_to_le16(512), .bInterval = 1, // NAK every 1 uframe }; @@ -988,7 +988,7 @@ hs_intr_in_desc = { /* bEndpointAddress copied from fs_intr_in_desc during fsg_bind() */ .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = __constant_cpu_to_le16(2), + .wMaxPacketSize = cpu_to_le16(2), .bInterval = 9, // 2**(9-1) = 256 uframes -> 32 ms }; @@ -2646,7 +2646,7 @@ static int send_status(struct fsg_dev *fsg) struct bulk_cs_wrap *csw = bh->buf; /* Store and send the Bulk-only CSW */ - csw->Signature = __constant_cpu_to_le32(USB_BULK_CS_SIG); + csw->Signature = cpu_to_le32(USB_BULK_CS_SIG); csw->Tag = fsg->tag; csw->Residue = cpu_to_le32(fsg->residue); csw->Status = status; @@ -3089,7 +3089,7 @@ static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh) /* Is the CBW valid? */ if (req->actual != USB_BULK_CB_WRAP_LEN || - cbw->Signature != __constant_cpu_to_le32( + cbw->Signature != cpu_to_le32( USB_BULK_CB_SIG)) { DBG(fsg, "invalid CBW: len %u sig 0x%x\n", req->actual, diff --git a/drivers/usb/gadget/fsl_usb2_udc.c b/drivers/usb/gadget/fsl_usb2_udc.c index d8d9a52..9d7b95d 100644 --- a/drivers/usb/gadget/fsl_usb2_udc.c +++ b/drivers/usb/gadget/fsl_usb2_udc.c @@ -1802,7 +1802,8 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) out: if (retval) - printk("gadget driver register failed %d\n", retval); + printk(KERN_WARNING "gadget driver register failed %d\n", + retval); return retval; } EXPORT_SYMBOL(usb_gadget_register_driver); @@ -1847,7 +1848,8 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) udc_controller->gadget.dev.driver = NULL; udc_controller->driver = NULL; - printk("unregistered gadget driver '%s'\n", driver->driver.name); + printk(KERN_WARNING "unregistered gadget driver '%s'\n", + driver->driver.name); return 0; } EXPORT_SYMBOL(usb_gadget_unregister_driver); @@ -2455,7 +2457,7 @@ module_init(udc_init); static void __exit udc_exit(void) { platform_driver_unregister(&udc_driver); - printk("%s unregistered\n", driver_desc); + printk(KERN_WARNING "%s unregistered\n", driver_desc); } module_exit(udc_exit); diff --git a/drivers/usb/gadget/g_zero.h b/drivers/usb/gadget/g_zero.h index dd2f16a..e84b3c4 100644 --- a/drivers/usb/gadget/g_zero.h +++ b/drivers/usb/gadget/g_zero.h @@ -19,7 +19,7 @@ void disable_endpoints(struct usb_composite_dev *cdev, struct usb_ep *in, struct usb_ep *out); /* configuration-specific linkup */ -int sourcesink_add(struct usb_composite_dev *cdev); -int loopback_add(struct usb_composite_dev *cdev); +int sourcesink_add(struct usb_composite_dev *cdev, bool autoresume); +int loopback_add(struct usb_composite_dev *cdev, bool autoresume); #endif /* __G_ZERO_H */ diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c index 60d3f9e..b9312dc 100644 --- a/drivers/usb/gadget/gmidi.c +++ b/drivers/usb/gadget/gmidi.c @@ -199,10 +199,10 @@ DECLARE_USB_MS_ENDPOINT_DESCRIPTOR(1); static struct usb_device_descriptor device_desc = { .bLength = USB_DT_DEVICE_SIZE, .bDescriptorType = USB_DT_DEVICE, - .bcdUSB = __constant_cpu_to_le16(0x0200), + .bcdUSB = cpu_to_le16(0x0200), .bDeviceClass = USB_CLASS_PER_INTERFACE, - .idVendor = __constant_cpu_to_le16(DRIVER_VENDOR_NUM), - .idProduct = __constant_cpu_to_le16(DRIVER_PRODUCT_NUM), + .idVendor = cpu_to_le16(DRIVER_VENDOR_NUM), + .idProduct = cpu_to_le16(DRIVER_PRODUCT_NUM), .iManufacturer = STRING_MANUFACTURER, .iProduct = STRING_PRODUCT, .bNumConfigurations = 1, @@ -241,8 +241,8 @@ static const struct usb_ac_header_descriptor_1 ac_header_desc = { .bLength = USB_DT_AC_HEADER_SIZE(1), .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubtype = USB_MS_HEADER, - .bcdADC = __constant_cpu_to_le16(0x0100), - .wTotalLength = __constant_cpu_to_le16(USB_DT_AC_HEADER_SIZE(1)), + .bcdADC = cpu_to_le16(0x0100), + .wTotalLength = cpu_to_le16(USB_DT_AC_HEADER_SIZE(1)), .bInCollection = 1, .baInterfaceNr = { [0] = GMIDI_MS_INTERFACE, @@ -265,8 +265,8 @@ static const struct usb_ms_header_descriptor ms_header_desc = { .bLength = USB_DT_MS_HEADER_SIZE, .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubtype = USB_MS_HEADER, - .bcdMSC = __constant_cpu_to_le16(0x0100), - .wTotalLength = __constant_cpu_to_le16(USB_DT_MS_HEADER_SIZE + .bcdMSC = cpu_to_le16(0x0100), + .wTotalLength = cpu_to_le16(USB_DT_MS_HEADER_SIZE + 2*USB_DT_MIDI_IN_SIZE + 2*USB_DT_MIDI_OUT_SIZE(1)), }; @@ -1099,10 +1099,9 @@ static int gmidi_register_card(struct gmidi_device *dev) .dev_free = gmidi_snd_free, }; - card = snd_card_new(index, id, THIS_MODULE, 0); - if (!card) { - ERROR(dev, "snd_card_new failed\n"); - err = -ENOMEM; + err = snd_card_create(index, id, THIS_MODULE, 0, &card); + if (err < 0) { + ERROR(dev, "snd_card_create failed\n"); goto fail; } dev->card = card; @@ -1227,7 +1226,7 @@ autoconf_fail: */ pr_warning("%s: controller '%s' not recognized\n", shortname, gadget->name); - device_desc.bcdDevice = __constant_cpu_to_le16(0x9999); + device_desc.bcdDevice = cpu_to_le16(0x9999); } diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index 63419c4..de010c9 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -1472,7 +1472,7 @@ static void ep0_setup(struct goku_udc *dev) /* active endpoint */ if (tmp > 3 || (!dev->ep[tmp].desc && tmp != 0)) goto stall; - if (ctrl.wIndex & __constant_cpu_to_le16( + if (ctrl.wIndex & cpu_to_le16( USB_DIR_IN)) { if (!dev->ep[tmp].is_in) goto stall; @@ -1480,7 +1480,7 @@ static void ep0_setup(struct goku_udc *dev) if (dev->ep[tmp].is_in) goto stall; } - if (ctrl.wValue != __constant_cpu_to_le16( + if (ctrl.wValue != cpu_to_le16( USB_ENDPOINT_HALT)) goto stall; if (tmp) @@ -1493,7 +1493,7 @@ succeed: return; case USB_RECIP_DEVICE: /* device remote wakeup: always clear */ - if (ctrl.wValue != __constant_cpu_to_le16(1)) + if (ctrl.wValue != cpu_to_le16(1)) goto stall; VDBG(dev, "clear dev remote wakeup\n"); goto succeed; @@ -1519,7 +1519,7 @@ succeed: dev->req_config = (ctrl.bRequest == USB_REQ_SET_CONFIGURATION && ctrl.bRequestType == USB_RECIP_DEVICE); if (unlikely(dev->req_config)) - dev->configured = (ctrl.wValue != __constant_cpu_to_le16(0)); + dev->configured = (ctrl.wValue != cpu_to_le16(0)); /* delegate everything to the gadget driver. * it may respond after this irq handler returns. diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c index 77c5d0a..168658b 100644 --- a/drivers/usb/gadget/imx_udc.c +++ b/drivers/usb/gadget/imx_udc.c @@ -1,7 +1,7 @@ /* * driver/usb/gadget/imx_udc.c * - * Copyright (C) 2005 Mike Lee(eemike@gmail.com) + * Copyright (C) 2005 Mike Lee <eemike@gmail.com> * Copyright (C) 2008 Darius Augulis <augulis.darius@gmail.com> * * This program is free software; you can redistribute it and/or modify @@ -28,6 +28,7 @@ #include <linux/dma-mapping.h> #include <linux/clk.h> #include <linux/delay.h> +#include <linux/timer.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> @@ -51,7 +52,8 @@ void ep0_chg_stat(const char *label, struct imx_udc_struct *imx_usb, void imx_udc_enable(struct imx_udc_struct *imx_usb) { int temp = __raw_readl(imx_usb->base + USB_CTRL); - __raw_writel(temp | CTRL_FE_ENA | CTRL_AFE_ENA, imx_usb->base + USB_CTRL); + __raw_writel(temp | CTRL_FE_ENA | CTRL_AFE_ENA, + imx_usb->base + USB_CTRL); imx_usb->gadget.speed = USB_SPEED_FULL; } @@ -126,7 +128,8 @@ void imx_udc_config(struct imx_udc_struct *imx_usb) for (j = 0; j < 5; j++) { __raw_writeb(ep_conf[j], imx_usb->base + USB_DDAT); - do {} while (__raw_readl(imx_usb->base + USB_DADR) + do {} while (__raw_readl(imx_usb->base + + USB_DADR) & DADR_BSY); } } @@ -183,7 +186,8 @@ void imx_udc_init_ep(struct imx_udc_struct *imx_usb) temp = (EP_DIR(imx_ep) << 7) | (max << 5) | (imx_ep->bmAttributes << 3); __raw_writel(temp, imx_usb->base + USB_EP_STAT(i)); - __raw_writel(temp | EPSTAT_FLUSH, imx_usb->base + USB_EP_STAT(i)); + __raw_writel(temp | EPSTAT_FLUSH, + imx_usb->base + USB_EP_STAT(i)); D_INI(imx_usb->dev, "<%s> ep%d_stat %08x\n", __func__, i, __raw_readl(imx_usb->base + USB_EP_STAT(i))); } @@ -278,15 +282,18 @@ void imx_ep_stall(struct imx_ep_struct *imx_ep) struct imx_udc_struct *imx_usb = imx_ep->imx_usb; int temp, i; - D_ERR(imx_usb->dev, "<%s> Forced stall on %s\n", __func__, imx_ep->ep.name); + D_ERR(imx_usb->dev, + "<%s> Forced stall on %s\n", __func__, imx_ep->ep.name); imx_flush(imx_ep); /* Special care for ep0 */ - if (EP_NO(imx_ep)) { + if (!EP_NO(imx_ep)) { temp = __raw_readl(imx_usb->base + USB_CTRL); - __raw_writel(temp | CTRL_CMDOVER | CTRL_CMDERROR, imx_usb->base + USB_CTRL); - do { } while (__raw_readl(imx_usb->base + USB_CTRL) & CTRL_CMDOVER); + __raw_writel(temp | CTRL_CMDOVER | CTRL_CMDERROR, + imx_usb->base + USB_CTRL); + do { } while (__raw_readl(imx_usb->base + USB_CTRL) + & CTRL_CMDOVER); temp = __raw_readl(imx_usb->base + USB_CTRL); __raw_writel(temp & ~CTRL_CMDERROR, imx_usb->base + USB_CTRL); } @@ -296,12 +303,13 @@ void imx_ep_stall(struct imx_ep_struct *imx_ep) imx_usb->base + USB_EP_STAT(EP_NO(imx_ep))); for (i = 0; i < 100; i ++) { - temp = __raw_readl(imx_usb->base + USB_EP_STAT(EP_NO(imx_ep))); + temp = __raw_readl(imx_usb->base + + USB_EP_STAT(EP_NO(imx_ep))); if (!(temp & EPSTAT_STALL)) break; udelay(20); } - if (i == 50) + if (i == 100) D_ERR(imx_usb->dev, "<%s> Non finished stall on %s\n", __func__, imx_ep->ep.name); } @@ -325,7 +333,8 @@ static int imx_udc_wakeup(struct usb_gadget *_gadget) ******************************************************************************* */ -static void ep_add_request(struct imx_ep_struct *imx_ep, struct imx_request *req) +static void ep_add_request(struct imx_ep_struct *imx_ep, + struct imx_request *req) { if (unlikely(!req)) return; @@ -334,7 +343,8 @@ static void ep_add_request(struct imx_ep_struct *imx_ep, struct imx_request *req list_add_tail(&req->queue, &imx_ep->queue); } -static void ep_del_request(struct imx_ep_struct *imx_ep, struct imx_request *req) +static void ep_del_request(struct imx_ep_struct *imx_ep, + struct imx_request *req) { if (unlikely(!req)) return; @@ -343,7 +353,8 @@ static void ep_del_request(struct imx_ep_struct *imx_ep, struct imx_request *req req->in_use = 0; } -static void done(struct imx_ep_struct *imx_ep, struct imx_request *req, int status) +static void done(struct imx_ep_struct *imx_ep, + struct imx_request *req, int status) { ep_del_request(imx_ep, req); @@ -494,7 +505,8 @@ static int write_fifo(struct imx_ep_struct *imx_ep, struct imx_request *req) __func__, imx_ep->ep.name, req, completed ? "completed" : "not completed"); if (!EP_NO(imx_ep)) - ep0_chg_stat(__func__, imx_ep->imx_usb, EP0_IDLE); + ep0_chg_stat(__func__, + imx_ep->imx_usb, EP0_IDLE); } } @@ -539,10 +551,9 @@ static int handle_ep0(struct imx_ep_struct *imx_ep) struct imx_request *req = NULL; int ret = 0; - if (!list_empty(&imx_ep->queue)) + if (!list_empty(&imx_ep->queue)) { req = list_entry(imx_ep->queue.next, struct imx_request, queue); - if (req) { switch (imx_ep->imx_usb->ep0state) { case EP0_IN_DATA_PHASE: /* GET_DESCRIPTOR */ @@ -561,6 +572,10 @@ static int handle_ep0(struct imx_ep_struct *imx_ep) } } + else + D_ERR(imx_ep->imx_usb->dev, "<%s> no request on %s\n", + __func__, imx_ep->ep.name); + return ret; } @@ -583,7 +598,8 @@ static void handle_ep0_devreq(struct imx_udc_struct *imx_usb) "<%s> no setup packet received\n", __func__); goto stall; } - u.word[i] = __raw_readl(imx_usb->base + USB_EP_FDAT(EP_NO(imx_ep))); + u.word[i] = __raw_readl(imx_usb->base + + USB_EP_FDAT(EP_NO(imx_ep))); } temp = imx_ep_empty(imx_ep); @@ -759,7 +775,7 @@ static int imx_ep_queue */ if (imx_usb->set_config && !EP_NO(imx_ep)) { imx_usb->set_config = 0; - D_EPX(imx_usb->dev, + D_ERR(imx_usb->dev, "<%s> gadget reply set config\n", __func__); return 0; } @@ -779,28 +795,29 @@ static int imx_ep_queue return -ESHUTDOWN; } - local_irq_save(flags); - /* Debug */ D_REQ(imx_usb->dev, "<%s> ep%d %s request for [%d] bytes\n", __func__, EP_NO(imx_ep), - ((!EP_NO(imx_ep) && imx_ep->imx_usb->ep0state == EP0_IN_DATA_PHASE) - || (EP_NO(imx_ep) && EP_DIR(imx_ep))) ? "IN" : "OUT", usb_req->length); + ((!EP_NO(imx_ep) && imx_ep->imx_usb->ep0state + == EP0_IN_DATA_PHASE) + || (EP_NO(imx_ep) && EP_DIR(imx_ep))) + ? "IN" : "OUT", usb_req->length); dump_req(__func__, imx_ep, usb_req); if (imx_ep->stopped) { usb_req->status = -ESHUTDOWN; - ret = -ESHUTDOWN; - goto out; + return -ESHUTDOWN; } if (req->in_use) { D_ERR(imx_usb->dev, "<%s> refusing to queue req %p (already queued)\n", __func__, req); - goto out; + return 0; } + local_irq_save(flags); + usb_req->status = -EINPROGRESS; usb_req->actual = 0; @@ -810,7 +827,7 @@ static int imx_ep_queue ret = handle_ep0(imx_ep); else ret = handle_ep(imx_ep); -out: + local_irq_restore(flags); return ret; } @@ -997,71 +1014,32 @@ static void udc_stop_activity(struct imx_udc_struct *imx_usb, ******************************************************************************* */ -static irqreturn_t imx_udc_irq(int irq, void *dev) +/* + * Called when timer expires. + * Timer is started when CFG_CHG is received. + */ +static void handle_config(unsigned long data) { - struct imx_udc_struct *imx_usb = dev; + struct imx_udc_struct *imx_usb = (void *)data; struct usb_ctrlrequest u; int temp, cfg, intf, alt; - int intr = __raw_readl(imx_usb->base + USB_INTR); - if (intr & (INTR_WAKEUP | INTR_SUSPEND | INTR_RESUME | INTR_RESET_START - | INTR_RESET_STOP | INTR_CFG_CHG)) { - dump_intr(__func__, intr, imx_usb->dev); - dump_usb_stat(__func__, imx_usb); - } + local_irq_disable(); - if (!imx_usb->driver) { - /*imx_udc_disable(imx_usb);*/ - goto end_irq; - } + temp = __raw_readl(imx_usb->base + USB_STAT); + cfg = (temp & STAT_CFG) >> 5; + intf = (temp & STAT_INTF) >> 3; + alt = temp & STAT_ALTSET; - if (intr & INTR_WAKEUP) { - if (imx_usb->gadget.speed == USB_SPEED_UNKNOWN - && imx_usb->driver && imx_usb->driver->resume) - imx_usb->driver->resume(&imx_usb->gadget); - imx_usb->set_config = 0; - imx_usb->gadget.speed = USB_SPEED_FULL; - } - - if (intr & INTR_SUSPEND) { - if (imx_usb->gadget.speed != USB_SPEED_UNKNOWN - && imx_usb->driver && imx_usb->driver->suspend) - imx_usb->driver->suspend(&imx_usb->gadget); - imx_usb->set_config = 0; - imx_usb->gadget.speed = USB_SPEED_UNKNOWN; - } - - if (intr & INTR_RESET_START) { - __raw_writel(intr, imx_usb->base + USB_INTR); - udc_stop_activity(imx_usb, imx_usb->driver); - imx_usb->set_config = 0; - imx_usb->gadget.speed = USB_SPEED_UNKNOWN; - } + D_REQ(imx_usb->dev, + "<%s> orig config C=%d, I=%d, A=%d / " + "req config C=%d, I=%d, A=%d\n", + __func__, imx_usb->cfg, imx_usb->intf, imx_usb->alt, + cfg, intf, alt); - if (intr & INTR_RESET_STOP) - imx_usb->gadget.speed = USB_SPEED_FULL; + if (cfg == 1 || cfg == 2) { - if (intr & INTR_CFG_CHG) { - __raw_writel(INTR_CFG_CHG, imx_usb->base + USB_INTR); - temp = __raw_readl(imx_usb->base + USB_STAT); - cfg = (temp & STAT_CFG) >> 5; - intf = (temp & STAT_INTF) >> 3; - alt = temp & STAT_ALTSET; - - D_REQ(imx_usb->dev, - "<%s> orig config C=%d, I=%d, A=%d / " - "req config C=%d, I=%d, A=%d\n", - __func__, imx_usb->cfg, imx_usb->intf, imx_usb->alt, - cfg, intf, alt); - - if (cfg != 1 && cfg != 2) - goto end_irq; - - imx_usb->set_config = 0; - - /* Config setup */ if (imx_usb->cfg != cfg) { - D_REQ(imx_usb->dev, "<%s> Change config start\n",__func__); u.bRequest = USB_REQ_SET_CONFIGURATION; u.bRequestType = USB_DIR_OUT | USB_TYPE_STANDARD | @@ -1070,14 +1048,10 @@ static irqreturn_t imx_udc_irq(int irq, void *dev) u.wIndex = 0; u.wLength = 0; imx_usb->cfg = cfg; - imx_usb->set_config = 1; imx_usb->driver->setup(&imx_usb->gadget, &u); - imx_usb->set_config = 0; - D_REQ(imx_usb->dev, "<%s> Change config done\n",__func__); } if (imx_usb->intf != intf || imx_usb->alt != alt) { - D_REQ(imx_usb->dev, "<%s> Change interface start\n",__func__); u.bRequest = USB_REQ_SET_INTERFACE; u.bRequestType = USB_DIR_OUT | USB_TYPE_STANDARD | @@ -1087,20 +1061,92 @@ static irqreturn_t imx_udc_irq(int irq, void *dev) u.wLength = 0; imx_usb->intf = intf; imx_usb->alt = alt; - imx_usb->set_config = 1; imx_usb->driver->setup(&imx_usb->gadget, &u); - imx_usb->set_config = 0; - D_REQ(imx_usb->dev, "<%s> Change interface done\n",__func__); } } + imx_usb->set_config = 0; + + local_irq_enable(); +} + +static irqreturn_t imx_udc_irq(int irq, void *dev) +{ + struct imx_udc_struct *imx_usb = dev; + int intr = __raw_readl(imx_usb->base + USB_INTR); + int temp; + + if (intr & (INTR_WAKEUP | INTR_SUSPEND | INTR_RESUME | INTR_RESET_START + | INTR_RESET_STOP | INTR_CFG_CHG)) { + dump_intr(__func__, intr, imx_usb->dev); + dump_usb_stat(__func__, imx_usb); + } + + if (!imx_usb->driver) + goto end_irq; + if (intr & INTR_SOF) { + /* Copy from Freescale BSP. + We must enable SOF intr and set CMDOVER. + Datasheet don't specifiy this action, but it + is done in Freescale BSP, so just copy it. + */ if (imx_usb->ep0state == EP0_IDLE) { temp = __raw_readl(imx_usb->base + USB_CTRL); - __raw_writel(temp | CTRL_CMDOVER, imx_usb->base + USB_CTRL); + __raw_writel(temp | CTRL_CMDOVER, + imx_usb->base + USB_CTRL); } } + if (intr & INTR_CFG_CHG) { + /* A workaround of serious IMX UDC bug. + Handling of CFG_CHG should be delayed for some time, because + IMX does not NACK the host when CFG_CHG interrupt is pending. + There is no time to handle current CFG_CHG + if next CFG_CHG or SETUP packed is send immediately. + We have to clear CFG_CHG, start the timer and + NACK the host by setting CTRL_CMDOVER + if it sends any SETUP packet. + When timer expires, handler is called to handle configuration + changes. While CFG_CHG is not handled (set_config=1), + we must NACK the host to every SETUP packed. + This delay prevents from going out of sync with host. + */ + __raw_writel(INTR_CFG_CHG, imx_usb->base + USB_INTR); + imx_usb->set_config = 1; + mod_timer(&imx_usb->timer, jiffies + 5); + goto end_irq; + } + + if (intr & INTR_WAKEUP) { + if (imx_usb->gadget.speed == USB_SPEED_UNKNOWN + && imx_usb->driver && imx_usb->driver->resume) + imx_usb->driver->resume(&imx_usb->gadget); + imx_usb->set_config = 0; + del_timer(&imx_usb->timer); + imx_usb->gadget.speed = USB_SPEED_FULL; + } + + if (intr & INTR_SUSPEND) { + if (imx_usb->gadget.speed != USB_SPEED_UNKNOWN + && imx_usb->driver && imx_usb->driver->suspend) + imx_usb->driver->suspend(&imx_usb->gadget); + imx_usb->set_config = 0; + del_timer(&imx_usb->timer); + imx_usb->gadget.speed = USB_SPEED_UNKNOWN; + } + + if (intr & INTR_RESET_START) { + __raw_writel(intr, imx_usb->base + USB_INTR); + udc_stop_activity(imx_usb, imx_usb->driver); + imx_usb->set_config = 0; + del_timer(&imx_usb->timer); + imx_usb->gadget.speed = USB_SPEED_UNKNOWN; + } + + if (intr & INTR_RESET_STOP) + imx_usb->gadget.speed = USB_SPEED_FULL; + end_irq: __raw_writel(intr, imx_usb->base + USB_INTR); return IRQ_HANDLED; @@ -1109,6 +1155,7 @@ end_irq: static irqreturn_t imx_udc_ctrl_irq(int irq, void *dev) { struct imx_udc_struct *imx_usb = dev; + struct imx_ep_struct *imx_ep = &imx_usb->imx_ep[0]; int intr = __raw_readl(imx_usb->base + USB_EP_INTR(0)); dump_ep_intr(__func__, 0, intr, imx_usb->dev); @@ -1118,16 +1165,15 @@ static irqreturn_t imx_udc_ctrl_irq(int irq, void *dev) return IRQ_HANDLED; } - /* DEVREQ IRQ has highest priority */ + /* DEVREQ has highest priority */ if (intr & (EPINTR_DEVREQ | EPINTR_MDEVREQ)) handle_ep0_devreq(imx_usb); /* Seem i.MX is missing EOF interrupt sometimes. - * Therefore we monitor both EOF and FIFO_EMPTY interrups - * when transmiting, and both EOF and FIFO_FULL when - * receiving data. + * Therefore we don't monitor EOF. + * We call handle_ep0() only if a request is queued for ep0. */ - else if (intr & (EPINTR_EOF | EPINTR_FIFO_EMPTY | EPINTR_FIFO_FULL)) - handle_ep0(&imx_usb->imx_ep[0]); + else if (!list_empty(&imx_ep->queue)) + handle_ep0(imx_ep); __raw_writel(intr, imx_usb->base + USB_EP_INTR(0)); @@ -1186,8 +1232,8 @@ static struct imx_udc_struct controller = { .ep0 = &controller.imx_ep[0].ep, .name = driver_name, .dev = { - .bus_id = "gadget", - }, + .init_name = "gadget", + }, }, .imx_ep[0] = { @@ -1318,6 +1364,7 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) udc_stop_activity(imx_usb, driver); imx_udc_disable(imx_usb); + del_timer(&imx_usb->timer); driver->unbind(&imx_usb->gadget); imx_usb->gadget.dev.driver = NULL; @@ -1435,6 +1482,10 @@ static int __init imx_udc_probe(struct platform_device *pdev) usb_init_data(imx_usb); imx_udc_init(imx_usb); + init_timer(&imx_usb->timer); + imx_usb->timer.function = handle_config; + imx_usb->timer.data = (unsigned long)imx_usb; + return 0; fail3: @@ -1457,6 +1508,7 @@ static int __exit imx_udc_remove(struct platform_device *pdev) int i; imx_udc_disable(imx_usb); + del_timer(&imx_usb->timer); for (i = 0; i < IMX_USB_NB_EP + 1; i++) free_irq(imx_usb->usbd_int[i], imx_usb); diff --git a/drivers/usb/gadget/imx_udc.h b/drivers/usb/gadget/imx_udc.h index 8500769..b48ad59 100644 --- a/drivers/usb/gadget/imx_udc.h +++ b/drivers/usb/gadget/imx_udc.h @@ -23,7 +23,8 @@ /* Helper macros */ #define EP_NO(ep) ((ep->bEndpointAddress) & ~USB_DIR_IN) /* IN:1, OUT:0 */ #define EP_DIR(ep) ((ep->bEndpointAddress) & USB_DIR_IN ? 1 : 0) -#define irq_to_ep(irq) (((irq) >= USBD_INT0) || ((irq) <= USBD_INT6) ? ((irq) - USBD_INT0) : (USBD_INT6)) /*should not happen*/ +#define irq_to_ep(irq) (((irq) >= USBD_INT0) || ((irq) <= USBD_INT6) \ + ? ((irq) - USBD_INT0) : (USBD_INT6)) /*should not happen*/ #define ep_to_irq(ep) (EP_NO((ep)) + USBD_INT0) #define IMX_USB_NB_EP 6 @@ -58,6 +59,7 @@ struct imx_udc_struct { struct device *dev; struct imx_ep_struct imx_ep[IMX_USB_NB_EP]; struct clk *clk; + struct timer_list timer; enum ep0_state ep0state; struct resource *res; void __iomem *base; @@ -88,8 +90,8 @@ struct imx_udc_struct { #define USB_EP_FDAT3(x) (0x3F + (x*0x30)) /* USB FIFO data */ #define USB_EP_FSTAT(x) (0x40 + (x*0x30)) /* USB FIFO status */ #define USB_EP_FCTRL(x) (0x44 + (x*0x30)) /* USB FIFO control */ -#define USB_EP_LRFP(x) (0x48 + (x*0x30)) /* USB last read frame pointer */ -#define USB_EP_LWFP(x) (0x4C + (x*0x30)) /* USB last write frame pointer */ +#define USB_EP_LRFP(x) (0x48 + (x*0x30)) /* USB last rd f. pointer */ +#define USB_EP_LWFP(x) (0x4C + (x*0x30)) /* USB last wr f. pointer */ #define USB_EP_FALRM(x) (0x50 + (x*0x30)) /* USB FIFO alarm */ #define USB_EP_FRDP(x) (0x54 + (x*0x30)) /* USB FIFO read pointer */ #define USB_EP_FWRP(x) (0x58 + (x*0x30)) /* USB FIFO write pointer */ @@ -170,7 +172,7 @@ struct imx_udc_struct { /* #define DEBUG_IRQ */ /* #define DEBUG_EPIRQ */ /* #define DEBUG_DUMP */ -#define DEBUG_ERR +/* #define DEBUG_ERR */ #ifdef DEBUG_REQ #define D_REQ(dev, args...) dev_dbg(dev, ## args) @@ -228,7 +230,8 @@ struct imx_udc_struct { #endif /* DEBUG_IRQ */ #ifdef DEBUG_EPIRQ - static void dump_ep_intr(const char *label, int nr, int irqreg, struct device *dev) + static void dump_ep_intr(const char *label, int nr, int irqreg, + struct device *dev) { dev_dbg(dev, "<%s> EP%d_INTR=[%s%s%s%s%s%s%s%s%s]\n", label, nr, (irqreg & EPINTR_FIFO_FULL) ? " full" : "", @@ -246,7 +249,8 @@ struct imx_udc_struct { #endif /* DEBUG_IRQ */ #ifdef DEBUG_DUMP - static void dump_usb_stat(const char *label, struct imx_udc_struct *imx_usb) + static void dump_usb_stat(const char *label, + struct imx_udc_struct *imx_usb) { int temp = __raw_readl(imx_usb->base + USB_STAT); @@ -259,12 +263,15 @@ struct imx_udc_struct { (temp & STAT_ALTSET)); } - static void dump_ep_stat(const char *label, struct imx_ep_struct *imx_ep) + static void dump_ep_stat(const char *label, + struct imx_ep_struct *imx_ep) { - int temp = __raw_readl(imx_ep->imx_usb->base + USB_EP_INTR(EP_NO(imx_ep))); + int temp = __raw_readl(imx_ep->imx_usb->base + + USB_EP_INTR(EP_NO(imx_ep))); dev_dbg(imx_ep->imx_usb->dev, - "<%s> EP%d_INTR=[%s%s%s%s%s%s%s%s%s]\n", label, EP_NO(imx_ep), + "<%s> EP%d_INTR=[%s%s%s%s%s%s%s%s%s]\n", + label, EP_NO(imx_ep), (temp & EPINTR_FIFO_FULL) ? " full" : "", (temp & EPINTR_FIFO_EMPTY) ? " fempty" : "", (temp & EPINTR_FIFO_ERROR) ? " ferr" : "", @@ -275,18 +282,22 @@ struct imx_udc_struct { (temp & EPINTR_DEVREQ) ? " devreq" : "", (temp & EPINTR_EOT) ? " eot" : ""); - temp = __raw_readl(imx_ep->imx_usb->base + USB_EP_STAT(EP_NO(imx_ep))); + temp = __raw_readl(imx_ep->imx_usb->base + + USB_EP_STAT(EP_NO(imx_ep))); dev_dbg(imx_ep->imx_usb->dev, - "<%s> EP%d_STAT=[%s%s bcount=%d]\n", label, EP_NO(imx_ep), + "<%s> EP%d_STAT=[%s%s bcount=%d]\n", + label, EP_NO(imx_ep), (temp & EPSTAT_SIP) ? " sip" : "", (temp & EPSTAT_STALL) ? " stall" : "", (temp & EPSTAT_BCOUNT) >> 16); - temp = __raw_readl(imx_ep->imx_usb->base + USB_EP_FSTAT(EP_NO(imx_ep))); + temp = __raw_readl(imx_ep->imx_usb->base + + USB_EP_FSTAT(EP_NO(imx_ep))); dev_dbg(imx_ep->imx_usb->dev, - "<%s> EP%d_FSTAT=[%s%s%s%s%s%s%s]\n", label, EP_NO(imx_ep), + "<%s> EP%d_FSTAT=[%s%s%s%s%s%s%s]\n", + label, EP_NO(imx_ep), (temp & FSTAT_ERR) ? " ferr" : "", (temp & FSTAT_UF) ? " funder" : "", (temp & FSTAT_OF) ? " fover" : "", @@ -296,19 +307,23 @@ struct imx_udc_struct { (temp & FSTAT_EMPTY) ? " fempty" : ""); } - static void dump_req(const char *label, struct imx_ep_struct *imx_ep, struct usb_request *req) + static void dump_req(const char *label, struct imx_ep_struct *imx_ep, + struct usb_request *req) { int i; if (!req || !req->buf) { - dev_dbg(imx_ep->imx_usb->dev, "<%s> req or req buf is free\n", label); + dev_dbg(imx_ep->imx_usb->dev, + "<%s> req or req buf is free\n", label); return; } - if ((!EP_NO(imx_ep) && imx_ep->imx_usb->ep0state == EP0_IN_DATA_PHASE) + if ((!EP_NO(imx_ep) && imx_ep->imx_usb->ep0state + == EP0_IN_DATA_PHASE) || (EP_NO(imx_ep) && EP_DIR(imx_ep))) { - dev_dbg(imx_ep->imx_usb->dev, "<%s> request dump <", label); + dev_dbg(imx_ep->imx_usb->dev, + "<%s> request dump <", label); for (i = 0; i < req->length; i++) printk("%02x-", *((u8 *)req->buf + i)); printk(">\n"); diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index 317b48f..d20937f 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -1334,7 +1334,7 @@ static void make_qualifier (struct dev_data *dev) qual.bLength = sizeof qual; qual.bDescriptorType = USB_DT_DEVICE_QUALIFIER; - qual.bcdUSB = __constant_cpu_to_le16 (0x0200); + qual.bcdUSB = cpu_to_le16 (0x0200); desc = dev->dev; qual.bDeviceClass = desc->bDeviceClass; @@ -1908,7 +1908,7 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) || dev->dev->bNumConfigurations != 1) goto fail; dev->dev->bNumConfigurations = 1; - dev->dev->bcdUSB = __constant_cpu_to_le16 (0x0200); + dev->dev->bcdUSB = cpu_to_le16 (0x0200); /* triggers gadgetfs_bind(); then we can enumerate. */ spin_unlock_irq (&dev->lock); diff --git a/drivers/usb/gadget/lh7a40x_udc.c b/drivers/usb/gadget/lh7a40x_udc.c index d554b08..6cd3d54 100644 --- a/drivers/usb/gadget/lh7a40x_udc.c +++ b/drivers/usb/gadget/lh7a40x_udc.c @@ -432,8 +432,8 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) device_add(&dev->gadget.dev); retval = driver->bind(&dev->gadget); if (retval) { - printk("%s: bind to driver %s --> error %d\n", dev->gadget.name, - driver->driver.name, retval); + printk(KERN_WARNING "%s: bind to driver %s --> error %d\n", + dev->gadget.name, driver->driver.name, retval); device_del(&dev->gadget.dev); dev->driver = 0; @@ -445,8 +445,8 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) * for set_configuration as well as eventual disconnect. * NOTE: this shouldn't power up until later. */ - printk("%s: registered gadget driver '%s'\n", dev->gadget.name, - driver->driver.name); + printk(KERN_WARNING "%s: registered gadget driver '%s'\n", + dev->gadget.name, driver->driver.name); udc_enable(dev); @@ -581,7 +581,8 @@ static int read_fifo(struct lh7a40x_ep *ep, struct lh7a40x_request *req) * discard the extra data. */ if (req->req.status != -EOVERFLOW) - printk("%s overflow %d\n", ep->ep.name, count); + printk(KERN_WARNING "%s overflow %d\n", + ep->ep.name, count); req->req.status = -EOVERFLOW; } else { *buf++ = byte; @@ -831,7 +832,8 @@ static void lh7a40x_out_epn(struct lh7a40x_udc *dev, u32 ep_idx, u32 intr) queue); if (!req) { - printk("%s: NULL REQ %d\n", + printk(KERN_WARNING + "%s: NULL REQ %d\n", __func__, ep_idx); flush(ep); break; @@ -844,7 +846,7 @@ static void lh7a40x_out_epn(struct lh7a40x_udc *dev, u32 ep_idx, u32 intr) } else { /* Throw packet away.. */ - printk("%s: No descriptor?!?\n", __func__); + printk(KERN_WARNING "%s: No descriptor?!?\n", __func__); flush(ep); } } diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index 12c6d83..9498be8 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -142,8 +142,8 @@ static char *type_string (u8 bmAttributes) #include "net2280.h" -#define valid_bit __constant_cpu_to_le32 (1 << VALID_BIT) -#define dma_done_ie __constant_cpu_to_le32 (1 << DMA_DONE_INTERRUPT_ENABLE) +#define valid_bit cpu_to_le32 (1 << VALID_BIT) +#define dma_done_ie cpu_to_le32 (1 << DMA_DONE_INTERRUPT_ENABLE) /*-------------------------------------------------------------------------*/ @@ -425,7 +425,7 @@ net2280_alloc_request (struct usb_ep *_ep, gfp_t gfp_flags) return NULL; } td->dmacount = 0; /* not VALID */ - td->dmaaddr = __constant_cpu_to_le32 (DMA_ADDR_INVALID); + td->dmaaddr = cpu_to_le32 (DMA_ADDR_INVALID); td->dmadesc = td->dmaaddr; req->td = td; } @@ -775,7 +775,7 @@ static void start_dma (struct net2280_ep *ep, struct net2280_request *req) fill_dma_desc (ep, req, 1); if (!use_dma_chaining) - req->td->dmacount |= __constant_cpu_to_le32 (1 << END_OF_CHAIN); + req->td->dmacount |= cpu_to_le32 (1 << END_OF_CHAIN); start_queue (ep, tmp, req->td_dma); } @@ -2407,9 +2407,9 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) if (readl (&e->regs->ep_rsp) & (1 << SET_ENDPOINT_HALT)) - status = __constant_cpu_to_le32 (1); + status = cpu_to_le32 (1); else - status = __constant_cpu_to_le32 (0); + status = cpu_to_le32 (0); /* don't bother with a request object! */ writel (0, &dev->epregs [0].ep_irqenb); @@ -2667,7 +2667,7 @@ static void handle_stat1_irqs (struct net2280 *dev, u32 stat) req = list_entry (ep->queue.next, struct net2280_request, queue); dmacount = req->td->dmacount; - dmacount &= __constant_cpu_to_le32 ( + dmacount &= cpu_to_le32 ( (1 << VALID_BIT) | DMA_BYTE_COUNT_MASK); if (dmacount && (dmacount & valid_bit) == 0) @@ -2881,7 +2881,7 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) goto done; } td->dmacount = 0; /* not VALID */ - td->dmaaddr = __constant_cpu_to_le32 (DMA_ADDR_INVALID); + td->dmaaddr = cpu_to_le32 (DMA_ADDR_INVALID); td->dmadesc = td->dmaaddr; dev->ep [i].dummy = td; } diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c index 5a3034f..2950015 100644 --- a/drivers/usb/gadget/printer.c +++ b/drivers/usb/gadget/printer.c @@ -225,12 +225,12 @@ module_param(qlen, uint, S_IRUGO|S_IWUSR); static struct usb_device_descriptor device_desc = { .bLength = sizeof device_desc, .bDescriptorType = USB_DT_DEVICE, - .bcdUSB = __constant_cpu_to_le16(0x0200), + .bcdUSB = cpu_to_le16(0x0200), .bDeviceClass = USB_CLASS_PER_INTERFACE, .bDeviceSubClass = 0, .bDeviceProtocol = 0, - .idVendor = __constant_cpu_to_le16(PRINTER_VENDOR_NUM), - .idProduct = __constant_cpu_to_le16(PRINTER_PRODUCT_NUM), + .idVendor = cpu_to_le16(PRINTER_VENDOR_NUM), + .idProduct = cpu_to_le16(PRINTER_PRODUCT_NUM), .iManufacturer = STRING_MANUFACTURER, .iProduct = STRING_PRODUCT, .iSerialNumber = STRING_SERIALNUM, @@ -299,20 +299,20 @@ static struct usb_endpoint_descriptor hs_ep_in_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512) + .wMaxPacketSize = cpu_to_le16(512) }; static struct usb_endpoint_descriptor hs_ep_out_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, - .wMaxPacketSize = __constant_cpu_to_le16(512) + .wMaxPacketSize = cpu_to_le16(512) }; static struct usb_qualifier_descriptor dev_qualifier = { .bLength = sizeof dev_qualifier, .bDescriptorType = USB_DT_DEVICE_QUALIFIER, - .bcdUSB = __constant_cpu_to_le16(0x0200), + .bcdUSB = cpu_to_le16(0x0200), .bDeviceClass = USB_CLASS_PRINTER, .bNumConfigurations = 1 }; @@ -1406,16 +1406,16 @@ printer_bind(struct usb_gadget *gadget) gadget->name); /* unrecognized, but safe unless bulk is REALLY quirky */ device_desc.bcdDevice = - __constant_cpu_to_le16(0xFFFF); + cpu_to_le16(0xFFFF); } snprintf(manufacturer, sizeof(manufacturer), "%s %s with %s", init_utsname()->sysname, init_utsname()->release, gadget->name); device_desc.idVendor = - __constant_cpu_to_le16(PRINTER_VENDOR_NUM); + cpu_to_le16(PRINTER_VENDOR_NUM); device_desc.idProduct = - __constant_cpu_to_le16(PRINTER_PRODUCT_NUM); + cpu_to_le16(PRINTER_PRODUCT_NUM); /* support optional vendor/distro customization */ if (idVendor) { diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c index 990f40f..8cc676e 100644 --- a/drivers/usb/gadget/pxa27x_udc.c +++ b/drivers/usb/gadget/pxa27x_udc.c @@ -30,6 +30,7 @@ #include <linux/proc_fs.h> #include <linux/clk.h> #include <linux/irq.h> +#include <linux/gpio.h> #include <asm/byteorder.h> #include <mach/hardware.h> @@ -278,7 +279,7 @@ static void pxa_init_debugfs(struct pxa_udc *udc) goto err_queues; eps = debugfs_create_file("epstate", 0400, root, udc, &eps_dbg_fops); - if (!queues) + if (!eps) goto err_eps; udc->debugfs_root = root; @@ -747,13 +748,13 @@ static void req_done(struct pxa_ep *ep, struct pxa27x_request *req, int status) } /** - * ep_end_out_req - Ends control endpoint in request + * ep_end_out_req - Ends endpoint OUT request * @ep: physical endpoint * @req: pxa request * * Context: ep->lock held * - * Ends endpoint in request (completes usb request). + * Ends endpoint OUT request (completes usb request). */ static void ep_end_out_req(struct pxa_ep *ep, struct pxa27x_request *req) { @@ -762,13 +763,13 @@ static void ep_end_out_req(struct pxa_ep *ep, struct pxa27x_request *req) } /** - * ep0_end_out_req - Ends control endpoint in request (ends data stage) + * ep0_end_out_req - Ends control endpoint OUT request (ends data stage) * @ep: physical endpoint * @req: pxa request * * Context: ep->lock held * - * Ends control endpoint in request (completes usb request), and puts + * Ends control endpoint OUT request (completes usb request), and puts * control endpoint into idle state */ static void ep0_end_out_req(struct pxa_ep *ep, struct pxa27x_request *req) @@ -779,13 +780,13 @@ static void ep0_end_out_req(struct pxa_ep *ep, struct pxa27x_request *req) } /** - * ep_end_in_req - Ends endpoint out request + * ep_end_in_req - Ends endpoint IN request * @ep: physical endpoint * @req: pxa request * * Context: ep->lock held * - * Ends endpoint out request (completes usb request). + * Ends endpoint IN request (completes usb request). */ static void ep_end_in_req(struct pxa_ep *ep, struct pxa27x_request *req) { @@ -794,20 +795,18 @@ static void ep_end_in_req(struct pxa_ep *ep, struct pxa27x_request *req) } /** - * ep0_end_in_req - Ends control endpoint out request (ends data stage) + * ep0_end_in_req - Ends control endpoint IN request (ends data stage) * @ep: physical endpoint * @req: pxa request * * Context: ep->lock held * - * Ends control endpoint out request (completes usb request), and puts + * Ends control endpoint IN request (completes usb request), and puts * control endpoint into status state */ static void ep0_end_in_req(struct pxa_ep *ep, struct pxa27x_request *req) { - struct pxa_udc *udc = ep->dev; - - set_ep0state(udc, IN_STATUS_STAGE); + set_ep0state(ep->dev, IN_STATUS_STAGE); ep_end_in_req(ep, req); } @@ -1167,7 +1166,7 @@ static int pxa_ep_queue(struct usb_ep *_ep, struct usb_request *_req, ep_end_in_req(ep, req); } else { ep_err(ep, "got a request of %d bytes while" - "in state WATI_ACK_SET_CONF_INTERF\n", + "in state WAIT_ACK_SET_CONF_INTERF\n", length); ep_del_request(ep, req); rc = -EL2HLT; @@ -1213,30 +1212,26 @@ static int pxa_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req) struct udc_usb_ep *udc_usb_ep; struct pxa27x_request *req; unsigned long flags; - int rc; + int rc = -EINVAL; if (!_ep) - return -EINVAL; + return rc; udc_usb_ep = container_of(_ep, struct udc_usb_ep, usb_ep); ep = udc_usb_ep->pxa_ep; if (!ep || is_ep0(ep)) - return -EINVAL; + return rc; spin_lock_irqsave(&ep->lock, flags); /* make sure it's actually queued on this endpoint */ list_for_each_entry(req, &ep->queue, queue) { - if (&req->req == _req) + if (&req->req == _req) { + req_done(ep, req, -ECONNRESET); + rc = 0; break; + } } - rc = -EINVAL; - if (&req->req != _req) - goto out; - - rc = 0; - req_done(ep, req, -ECONNRESET); -out: spin_unlock_irqrestore(&ep->lock, flags); return rc; } @@ -1471,6 +1466,32 @@ static struct usb_ep_ops pxa_ep_ops = { .fifo_flush = pxa_ep_fifo_flush, }; +/** + * dplus_pullup - Connect or disconnect pullup resistor to D+ pin + * @udc: udc device + * @on: 0 if disconnect pullup resistor, 1 otherwise + * Context: any + * + * Handle D+ pullup resistor, make the device visible to the usb bus, and + * declare it as a full speed usb device + */ +static void dplus_pullup(struct pxa_udc *udc, int on) +{ + if (on) { + if (gpio_is_valid(udc->mach->gpio_pullup)) + gpio_set_value(udc->mach->gpio_pullup, + !udc->mach->gpio_pullup_inverted); + if (udc->mach->udc_command) + udc->mach->udc_command(PXA2XX_UDC_CMD_CONNECT); + } else { + if (gpio_is_valid(udc->mach->gpio_pullup)) + gpio_set_value(udc->mach->gpio_pullup, + udc->mach->gpio_pullup_inverted); + if (udc->mach->udc_command) + udc->mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT); + } + udc->pullup_on = on; +} /** * pxa_udc_get_frame - Returns usb frame number @@ -1500,21 +1521,145 @@ static int pxa_udc_wakeup(struct usb_gadget *_gadget) return 0; } +static void udc_enable(struct pxa_udc *udc); +static void udc_disable(struct pxa_udc *udc); + +/** + * should_enable_udc - Tells if UDC should be enabled + * @udc: udc device + * Context: any + * + * The UDC should be enabled if : + + * - the pullup resistor is connected + * - and a gadget driver is bound + * - and vbus is sensed (or no vbus sense is available) + * + * Returns 1 if UDC should be enabled, 0 otherwise + */ +static int should_enable_udc(struct pxa_udc *udc) +{ + int put_on; + + put_on = ((udc->pullup_on) && (udc->driver)); + put_on &= ((udc->vbus_sensed) || (!udc->transceiver)); + return put_on; +} + +/** + * should_disable_udc - Tells if UDC should be disabled + * @udc: udc device + * Context: any + * + * The UDC should be disabled if : + * - the pullup resistor is not connected + * - or no gadget driver is bound + * - or no vbus is sensed (when vbus sesing is available) + * + * Returns 1 if UDC should be disabled + */ +static int should_disable_udc(struct pxa_udc *udc) +{ + int put_off; + + put_off = ((!udc->pullup_on) || (!udc->driver)); + put_off |= ((!udc->vbus_sensed) && (udc->transceiver)); + return put_off; +} + +/** + * pxa_udc_pullup - Offer manual D+ pullup control + * @_gadget: usb gadget using the control + * @is_active: 0 if disconnect, else connect D+ pullup resistor + * Context: !in_interrupt() + * + * Returns 0 if OK, -EOPNOTSUPP if udc driver doesn't handle D+ pullup + */ +static int pxa_udc_pullup(struct usb_gadget *_gadget, int is_active) +{ + struct pxa_udc *udc = to_gadget_udc(_gadget); + + if (!gpio_is_valid(udc->mach->gpio_pullup) && !udc->mach->udc_command) + return -EOPNOTSUPP; + + dplus_pullup(udc, is_active); + + if (should_enable_udc(udc)) + udc_enable(udc); + if (should_disable_udc(udc)) + udc_disable(udc); + return 0; +} + +static void udc_enable(struct pxa_udc *udc); +static void udc_disable(struct pxa_udc *udc); + +/** + * pxa_udc_vbus_session - Called by external transceiver to enable/disable udc + * @_gadget: usb gadget + * @is_active: 0 if should disable the udc, 1 if should enable + * + * Enables the udc, and optionnaly activates D+ pullup resistor. Or disables the + * udc, and deactivates D+ pullup resistor. + * + * Returns 0 + */ +static int pxa_udc_vbus_session(struct usb_gadget *_gadget, int is_active) +{ + struct pxa_udc *udc = to_gadget_udc(_gadget); + + udc->vbus_sensed = is_active; + if (should_enable_udc(udc)) + udc_enable(udc); + if (should_disable_udc(udc)) + udc_disable(udc); + + return 0; +} + +/** + * pxa_udc_vbus_draw - Called by gadget driver after SET_CONFIGURATION completed + * @_gadget: usb gadget + * @mA: current drawn + * + * Context: !in_interrupt() + * + * Called after a configuration was chosen by a USB host, to inform how much + * current can be drawn by the device from VBus line. + * + * Returns 0 or -EOPNOTSUPP if no transceiver is handling the udc + */ +static int pxa_udc_vbus_draw(struct usb_gadget *_gadget, unsigned mA) +{ + struct pxa_udc *udc; + + udc = to_gadget_udc(_gadget); + if (udc->transceiver) + return otg_set_power(udc->transceiver, mA); + return -EOPNOTSUPP; +} + static const struct usb_gadget_ops pxa_udc_ops = { .get_frame = pxa_udc_get_frame, .wakeup = pxa_udc_wakeup, - /* current versions must always be self-powered */ + .pullup = pxa_udc_pullup, + .vbus_session = pxa_udc_vbus_session, + .vbus_draw = pxa_udc_vbus_draw, }; /** * udc_disable - disable udc device controller * @udc: udc device + * Context: any * * Disables the udc device : disables clocks, udc interrupts, control endpoint * interrupts. */ static void udc_disable(struct pxa_udc *udc) { + if (!udc->enabled) + return; + udc_writel(udc, UDCICR0, 0); udc_writel(udc, UDCICR1, 0); @@ -1523,8 +1668,8 @@ static void udc_disable(struct pxa_udc *udc) ep0_idle(udc); udc->gadget.speed = USB_SPEED_UNKNOWN; - if (udc->mach->udc_command) - udc->mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT); + + udc->enabled = 0; } /** @@ -1555,10 +1700,9 @@ static __init void udc_init_data(struct pxa_udc *dev) } /* USB endpoints init */ - for (i = 0; i < NR_USB_ENDPOINTS; i++) - if (i != 0) - list_add_tail(&dev->udc_usb_ep[i].usb_ep.ep_list, - &dev->gadget.ep_list); + for (i = 1; i < NR_USB_ENDPOINTS; i++) + list_add_tail(&dev->udc_usb_ep[i].usb_ep.ep_list, + &dev->gadget.ep_list); } /** @@ -1570,6 +1714,9 @@ static __init void udc_init_data(struct pxa_udc *dev) */ static void udc_enable(struct pxa_udc *udc) { + if (udc->enabled) + return; + udc_writel(udc, UDCICR0, 0); udc_writel(udc, UDCICR1, 0); udc_clear_mask_UDCCR(udc, UDCCR_UDE); @@ -1598,9 +1745,7 @@ static void udc_enable(struct pxa_udc *udc) /* enable ep0 irqs */ pio_irq_enable(&udc->pxa_ep[0]); - dev_info(udc->dev, "UDC connecting\n"); - if (udc->mach->udc_command) - udc->mach->udc_command(PXA2XX_UDC_CMD_CONNECT); + udc->enabled = 1; } /** @@ -1612,6 +1757,9 @@ static void udc_enable(struct pxa_udc *udc) * usb traffic follows until a disconnect is reported. Then a host may connect * again, or the driver might get unbound. * + * Note that the udc is not automatically enabled. Check function + * should_enable_udc(). + * * Returns 0 if no error, -EINVAL, -ENODEV, -EBUSY otherwise */ int usb_gadget_register_driver(struct usb_gadget_driver *driver) @@ -1630,6 +1778,7 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) /* first hook up the driver ... */ udc->driver = driver; udc->gadget.dev.driver = &driver->driver; + dplus_pullup(udc, 1); retval = device_add(&udc->gadget.dev); if (retval) { @@ -1645,9 +1794,21 @@ int usb_gadget_register_driver(struct usb_gadget_driver *driver) dev_dbg(udc->dev, "registered gadget driver '%s'\n", driver->driver.name); - udc_enable(udc); + if (udc->transceiver) { + retval = otg_set_peripheral(udc->transceiver, &udc->gadget); + if (retval) { + dev_err(udc->dev, "can't bind to transceiver\n"); + goto transceiver_fail; + } + } + + if (should_enable_udc(udc)) + udc_enable(udc); return 0; +transceiver_fail: + if (driver->unbind) + driver->unbind(&udc->gadget); bind_fail: device_del(&udc->gadget.dev); add_fail: @@ -1699,14 +1860,17 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) stop_activity(udc, driver); udc_disable(udc); + dplus_pullup(udc, 0); driver->unbind(&udc->gadget); udc->driver = NULL; device_del(&udc->gadget.dev); - dev_info(udc->dev, "unregistered gadget driver '%s'\n", driver->driver.name); + + if (udc->transceiver) + return otg_set_peripheral(udc->transceiver, NULL); return 0; } EXPORT_SYMBOL(usb_gadget_unregister_driver); @@ -1823,14 +1987,14 @@ static void handle_ep0(struct pxa_udc *udc, int fifo_irq, int opc_irq) struct pxa27x_request *req = NULL; int completed = 0; + if (!list_empty(&ep->queue)) + req = list_entry(ep->queue.next, struct pxa27x_request, queue); + udccsr0 = udc_ep_readl(ep, UDCCSR); ep_dbg(ep, "state=%s, req=%p, udccsr0=0x%03x, udcbcr=%d, irq_msk=%x\n", EP0_STNAME(udc), req, udccsr0, udc_ep_readl(ep, UDCBCR), (fifo_irq << 1 | opc_irq)); - if (!list_empty(&ep->queue)) - req = list_entry(ep->queue.next, struct pxa27x_request, queue); - if (udccsr0 & UDCCSR0_SST) { ep_dbg(ep, "clearing stall status\n"); nuke(ep, -EPIPE); @@ -2212,7 +2376,7 @@ static int __init pxa_udc_probe(struct platform_device *pdev) { struct resource *regs; struct pxa_udc *udc = &memory; - int retval; + int retval = 0, gpio; regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!regs) @@ -2223,6 +2387,20 @@ static int __init pxa_udc_probe(struct platform_device *pdev) udc->dev = &pdev->dev; udc->mach = pdev->dev.platform_data; + udc->transceiver = otg_get_transceiver(); + + gpio = udc->mach->gpio_pullup; + if (gpio_is_valid(gpio)) { + retval = gpio_request(gpio, "USB D+ pullup"); + if (retval == 0) + gpio_direction_output(gpio, + udc->mach->gpio_pullup_inverted); + } + if (retval) { + dev_err(&pdev->dev, "Couldn't request gpio %d : %d\n", + gpio, retval); + return retval; + } udc->clk = clk_get(&pdev->dev, NULL); if (IS_ERR(udc->clk)) { @@ -2240,6 +2418,7 @@ static int __init pxa_udc_probe(struct platform_device *pdev) device_initialize(&udc->gadget.dev); udc->gadget.dev.parent = &pdev->dev; udc->gadget.dev.dma_mask = NULL; + udc->vbus_sensed = 0; the_controller = udc; platform_set_drvdata(pdev, udc); @@ -2273,14 +2452,21 @@ err_clk: static int __exit pxa_udc_remove(struct platform_device *_dev) { struct pxa_udc *udc = platform_get_drvdata(_dev); + int gpio = udc->mach->gpio_pullup; usb_gadget_unregister_driver(udc->driver); free_irq(udc->irq, udc); pxa_cleanup_debugfs(udc); + if (gpio_is_valid(gpio)) + gpio_free(gpio); + + otg_put_transceiver(udc->transceiver); + udc->transceiver = NULL; platform_set_drvdata(_dev, NULL); the_controller = NULL; clk_put(udc->clk); + iounmap(udc->regs); return 0; } @@ -2319,6 +2505,8 @@ static int pxa_udc_suspend(struct platform_device *_dev, pm_message_t state) } udc_disable(udc); + udc->pullup_resume = udc->pullup_on; + dplus_pullup(udc, 0); return 0; } @@ -2346,7 +2534,9 @@ static int pxa_udc_resume(struct platform_device *_dev) ep->udccsr_value, ep->udccr_value); } - udc_enable(udc); + dplus_pullup(udc, udc->pullup_resume); + if (should_enable_udc(udc)) + udc_enable(udc); /* * We do not handle OTG yet. * diff --git a/drivers/usb/gadget/pxa27x_udc.h b/drivers/usb/gadget/pxa27x_udc.h index 1d1b793..db58125 100644 --- a/drivers/usb/gadget/pxa27x_udc.h +++ b/drivers/usb/gadget/pxa27x_udc.h @@ -26,6 +26,7 @@ #include <linux/types.h> #include <linux/spinlock.h> #include <linux/io.h> +#include <linux/usb/otg.h> /* * Register definitions @@ -421,10 +422,14 @@ struct udc_stats { * @driver: bound gadget (zero, g_ether, g_file_storage, ...) * @dev: device * @mach: machine info, used to activate specific GPIO + * @transceiver: external transceiver to handle vbus sense and D+ pullup * @ep0state: control endpoint state machine state * @stats: statistics on udc usage * @udc_usb_ep: array of usb endpoints offered by the gadget * @pxa_ep: array of pxa available endpoints + * @enabled: UDC was enabled by a previous udc_enable() + * @pullup_on: if pullup resistor connected to D+ pin + * @pullup_resume: if pullup resistor should be connected to D+ pin on resume * @config: UDC active configuration * @last_interface: UDC interface of the last SET_INTERFACE host request * @last_alternate: UDC altsetting of the last SET_INTERFACE host request @@ -443,6 +448,7 @@ struct pxa_udc { struct usb_gadget_driver *driver; struct device *dev; struct pxa2xx_udc_mach_info *mach; + struct otg_transceiver *transceiver; enum ep0_state ep0state; struct udc_stats stats; @@ -450,6 +456,10 @@ struct pxa_udc { struct udc_usb_ep udc_usb_ep[NR_USB_ENDPOINTS]; struct pxa_ep pxa_ep[NR_PXA_ENDPOINTS]; + unsigned enabled:1; + unsigned pullup_on:1; + unsigned pullup_resume:1; + unsigned vbus_sensed:1; unsigned config:2; unsigned last_interface:3; unsigned last_alternate:3; diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index 37879af..f46a609 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -87,12 +87,12 @@ static struct usb_gadget_strings *dev_strings[] = { static struct usb_device_descriptor device_desc = { .bLength = USB_DT_DEVICE_SIZE, .bDescriptorType = USB_DT_DEVICE, - .bcdUSB = __constant_cpu_to_le16(0x0200), + .bcdUSB = cpu_to_le16(0x0200), /* .bDeviceClass = f(use_acm) */ .bDeviceSubClass = 0, .bDeviceProtocol = 0, /* .bMaxPacketSize0 = f(hardware) */ - .idVendor = __constant_cpu_to_le16(GS_VENDOR_ID), + .idVendor = cpu_to_le16(GS_VENDOR_ID), /* .idProduct = f(use_acm) */ /* .bcdDevice = f(hardware) */ /* .iManufacturer = DYNAMIC */ @@ -216,7 +216,7 @@ static int __init gs_bind(struct usb_composite_dev *cdev) pr_warning("gs_bind: controller '%s' not recognized\n", gadget->name); device_desc.bcdDevice = - __constant_cpu_to_le16(GS_VERSION_NUM | 0x0099); + cpu_to_le16(GS_VERSION_NUM | 0x0099); } if (gadget_is_otg(cdev->gadget)) { @@ -255,19 +255,19 @@ static int __init init(void) serial_config_driver.bConfigurationValue = 2; device_desc.bDeviceClass = USB_CLASS_COMM; device_desc.idProduct = - __constant_cpu_to_le16(GS_CDC_PRODUCT_ID); + cpu_to_le16(GS_CDC_PRODUCT_ID); } else if (use_obex) { serial_config_driver.label = "CDC OBEX config"; serial_config_driver.bConfigurationValue = 3; device_desc.bDeviceClass = USB_CLASS_COMM; device_desc.idProduct = - __constant_cpu_to_le16(GS_CDC_OBEX_PRODUCT_ID); + cpu_to_le16(GS_CDC_OBEX_PRODUCT_ID); } else { serial_config_driver.label = "Generic Serial config"; serial_config_driver.bConfigurationValue = 1; device_desc.bDeviceClass = USB_CLASS_VENDOR_SPEC; device_desc.idProduct = - __constant_cpu_to_le16(GS_PRODUCT_ID); + cpu_to_le16(GS_PRODUCT_ID); } strings_dev[STRING_DESCRIPTION_IDX].s = serial_config_driver.label; diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c index 53d5928..0a4d99a 100644 --- a/drivers/usb/gadget/u_serial.c +++ b/drivers/usb/gadget/u_serial.c @@ -1092,7 +1092,7 @@ int __init gserial_setup(struct usb_gadget *g, unsigned count) gs_tty_driver->init_termios.c_ispeed = 9600; gs_tty_driver->init_termios.c_ospeed = 9600; - coding.dwDTERate = __constant_cpu_to_le32(9600); + coding.dwDTERate = cpu_to_le32(9600); coding.bCharFormat = 8; coding.bParityType = USB_CDC_NO_PARITY; coding.bDataBits = USB_CDC_1_STOP_BITS; diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c index 361d965..2d77240 100644 --- a/drivers/usb/gadget/zero.c +++ b/drivers/usb/gadget/zero.c @@ -102,22 +102,32 @@ module_param(loopdefault, bool, S_IRUGO|S_IWUSR); #ifndef CONFIG_USB_ZERO_HNPTEST #define DRIVER_VENDOR_NUM 0x0525 /* NetChip */ #define DRIVER_PRODUCT_NUM 0xa4a0 /* Linux-USB "Gadget Zero" */ +#define DEFAULT_AUTORESUME 0 #else #define DRIVER_VENDOR_NUM 0x1a0a /* OTG test device IDs */ #define DRIVER_PRODUCT_NUM 0xbadd +#define DEFAULT_AUTORESUME 5 #endif +/* If the optional "autoresume" mode is enabled, it provides good + * functional coverage for the "USBCV" test harness from USB-IF. + * It's always set if OTG mode is enabled. + */ +unsigned autoresume = DEFAULT_AUTORESUME; +module_param(autoresume, uint, S_IRUGO); +MODULE_PARM_DESC(autoresume, "zero, or seconds before remote wakeup"); + /*-------------------------------------------------------------------------*/ static struct usb_device_descriptor device_desc = { .bLength = sizeof device_desc, .bDescriptorType = USB_DT_DEVICE, - .bcdUSB = __constant_cpu_to_le16(0x0200), + .bcdUSB = cpu_to_le16(0x0200), .bDeviceClass = USB_CLASS_VENDOR_SPEC, - .idVendor = __constant_cpu_to_le16(DRIVER_VENDOR_NUM), - .idProduct = __constant_cpu_to_le16(DRIVER_PRODUCT_NUM), + .idVendor = cpu_to_le16(DRIVER_VENDOR_NUM), + .idProduct = cpu_to_le16(DRIVER_PRODUCT_NUM), .bNumConfigurations = 2, }; @@ -212,6 +222,47 @@ void disable_endpoints(struct usb_composite_dev *cdev, /*-------------------------------------------------------------------------*/ +static struct timer_list autoresume_timer; + +static void zero_autoresume(unsigned long _c) +{ + struct usb_composite_dev *cdev = (void *)_c; + struct usb_gadget *g = cdev->gadget; + + /* unconfigured devices can't issue wakeups */ + if (!cdev->config) + return; + + /* Normally the host would be woken up for something + * more significant than just a timer firing; likely + * because of some direct user request. + */ + if (g->speed != USB_SPEED_UNKNOWN) { + int status = usb_gadget_wakeup(g); + INFO(cdev, "%s --> %d\n", __func__, status); + } +} + +static void zero_suspend(struct usb_composite_dev *cdev) +{ + if (cdev->gadget->speed == USB_SPEED_UNKNOWN) + return; + + if (autoresume) { + mod_timer(&autoresume_timer, jiffies + (HZ * autoresume)); + DBG(cdev, "suspend, wakeup in %d seconds\n", autoresume); + } else + DBG(cdev, "%s\n", __func__); +} + +static void zero_resume(struct usb_composite_dev *cdev) +{ + DBG(cdev, "%s\n", __func__); + del_timer(&autoresume_timer); +} + +/*-------------------------------------------------------------------------*/ + static int __init zero_bind(struct usb_composite_dev *cdev) { int gcnum; @@ -239,17 +290,19 @@ static int __init zero_bind(struct usb_composite_dev *cdev) strings_dev[STRING_SERIAL_IDX].id = id; device_desc.iSerialNumber = id; + setup_timer(&autoresume_timer, zero_autoresume, (unsigned long) cdev); + /* Register primary, then secondary configuration. Note that * SH3 only allows one config... */ if (loopdefault) { - loopback_add(cdev); + loopback_add(cdev, autoresume != 0); if (!gadget_is_sh(gadget)) - sourcesink_add(cdev); + sourcesink_add(cdev, autoresume != 0); } else { - sourcesink_add(cdev); + sourcesink_add(cdev, autoresume != 0); if (!gadget_is_sh(gadget)) - loopback_add(cdev); + loopback_add(cdev, autoresume != 0); } gcnum = usb_gadget_controller_number(gadget); @@ -265,7 +318,7 @@ static int __init zero_bind(struct usb_composite_dev *cdev) */ pr_warning("%s: controller '%s' not recognized\n", longname, gadget->name); - device_desc.bcdDevice = __constant_cpu_to_le16(0x9999); + device_desc.bcdDevice = cpu_to_le16(0x9999); } @@ -278,11 +331,20 @@ static int __init zero_bind(struct usb_composite_dev *cdev) return 0; } +static int zero_unbind(struct usb_composite_dev *cdev) +{ + del_timer_sync(&autoresume_timer); + return 0; +} + static struct usb_composite_driver zero_driver = { .name = "zero", .dev = &device_desc, .strings = dev_strings, .bind = zero_bind, + .unbind = zero_unbind, + .suspend = zero_suspend, + .resume = zero_resume, }; MODULE_AUTHOR("David Brownell"); |
