diff options
Diffstat (limited to 'drivers/usbdcore_ep0.c')
| -rw-r--r-- | drivers/usbdcore_ep0.c | 163 |
1 files changed, 42 insertions, 121 deletions
diff --git a/drivers/usbdcore_ep0.c b/drivers/usbdcore_ep0.c index 260befe97..5e7443be8 100644 --- a/drivers/usbdcore_ep0.c +++ b/drivers/usbdcore_ep0.c @@ -2,6 +2,9 @@ * (C) Copyright 2003 * Gerry Hamel, geh@ti.com, Texas Instruments * + * (C) Copyright 2006 + * Bryan O'Donoghue, deckard@CodeHermit.ie + * * Based on * linux/drivers/usbd/ep0.c * @@ -39,11 +42,17 @@ * function driver. This may need to change. * * XXX + * + * As alluded to above, a simple callback cdc_recv_setup has been implemented + * in the usb_device data structure to facilicate passing + * Common Device Class packets to a function driver. + * + * XXX */ #include <common.h> -#if defined(CONFIG_OMAP1510) && defined(CONFIG_USB_DEVICE) +#if defined(CONFIG_USB_DEVICE) #include "usbdcore.h" #if 0 @@ -69,7 +78,7 @@ static int ep0_get_status (struct usb_device_instance *device, char *cp; urb->actual_length = 2; - cp = urb->buffer; + cp = (char*)urb->buffer; cp[0] = cp[1] = 0; switch (requesttype) { @@ -115,7 +124,7 @@ static int ep0_get_one (struct usb_device_instance *device, struct urb *urb, * * Copy configuration data to urb transfer buffer if there is room for it. */ -static void copy_config (struct urb *urb, void *data, int max_length, +void copy_config (struct urb *urb, void *data, int max_length, int max_buf) { int available; @@ -128,10 +137,7 @@ static void copy_config (struct urb *urb, void *data, int max_length, dbg_ep0 (1, "data is NULL"); return; } - if (!(length = *(unsigned char *) data)) { - dbg_ep0 (1, "length is zero"); - return; - } + length = max_length; if (length > max_length) { dbg_ep0 (1, "length: %d >= max_length: %d", length, @@ -192,7 +198,7 @@ static int ep0_get_descriptor (struct usb_device_instance *device, /* setup tx urb */ urb->actual_length = 0; - cp = urb->buffer; + cp = (char*)urb->buffer; dbg_ep0 (2, "%s", USBD_DEVICE_DESCRIPTORS (descriptor_type)); @@ -200,7 +206,6 @@ static int ep0_get_descriptor (struct usb_device_instance *device, case USB_DESCRIPTOR_TYPE_DEVICE: { struct usb_device_descriptor *device_descriptor; - if (! (device_descriptor = usbd_device_device_descriptor (device, port))) { @@ -214,20 +219,16 @@ static int ep0_get_descriptor (struct usb_device_instance *device, /* correct the correct control endpoint 0 max packet size into the descriptor */ device_descriptor = (struct usb_device_descriptor *) urb->buffer; - device_descriptor->bMaxPacketSize0 = - urb->device->bus->maxpacketsize; } - /*dbg_ep0(3, "copied device configuration, actual_length: %x", urb->actual_length); */ + dbg_ep0(3, "copied device configuration, actual_length: 0x%x", urb->actual_length); break; case USB_DESCRIPTOR_TYPE_CONFIGURATION: { - int bNumInterface; struct usb_configuration_descriptor *configuration_descriptor; struct usb_device_descriptor *device_descriptor; - if (! (device_descriptor = usbd_device_device_descriptor (device, port))) { @@ -251,130 +252,35 @@ static int ep0_get_descriptor (struct usb_device_instance *device, index); return -1; } + dbg_ep0(0, "attempt to copy %d bytes to urb\n",cpu_to_le16(configuration_descriptor->wTotalLength)); copy_config (urb, configuration_descriptor, - sizeof (struct - usb_configuration_descriptor), - max); - - - /* iterate across interfaces for specified configuration */ - dbg_ep0 (0, "bNumInterfaces: %d", - configuration_descriptor->bNumInterfaces); - for (bNumInterface = 0; - bNumInterface < - configuration_descriptor->bNumInterfaces; - bNumInterface++) { - - int bAlternateSetting; - struct usb_interface_instance - *interface_instance; - - dbg_ep0 (3, "[%d] bNumInterfaces: %d", - bNumInterface, - configuration_descriptor->bNumInterfaces); - - if (! (interface_instance = usbd_device_interface_instance (device, - port, index, bNumInterface))) - { - dbg_ep0 (3, "[%d] interface_instance NULL", - bNumInterface); - return -1; - } - /* iterate across interface alternates */ - for (bAlternateSetting = 0; - bAlternateSetting < interface_instance->alternates; - bAlternateSetting++) { - /*int class; */ - int bNumEndpoint; - struct usb_interface_descriptor *interface_descriptor; - struct usb_alternate_instance *alternate_instance; - - dbg_ep0 (3, "[%d:%d] alternates: %d", - bNumInterface, - bAlternateSetting, - interface_instance->alternates); - - if (! (alternate_instance = usbd_device_alternate_instance (device, port, index, bNumInterface, bAlternateSetting))) { - dbg_ep0 (3, "[%d] alternate_instance NULL", - bNumInterface); - return -1; - } - /* copy descriptor for this interface */ - copy_config (urb, alternate_instance->interface_descriptor, - sizeof (struct usb_interface_descriptor), - max); - - /*dbg_ep0(3, "[%d:%d] classes: %d endpoints: %d", bNumInterface, bAlternateSetting, */ - /* alternate_instance->classes, alternate_instance->endpoints); */ - - /* iterate across classes for this alternate interface */ -#if 0 - for (class = 0; - class < alternate_instance->classes; - class++) { - struct usb_class_descriptor *class_descriptor; - /*dbg_ep0(3, "[%d:%d:%d] classes: %d", bNumInterface, bAlternateSetting, */ - /* class, alternate_instance->classes); */ - if (!(class_descriptor = usbd_device_class_descriptor_index (device, port, index, bNumInterface, bAlternateSetting, class))) { - dbg_ep0 (3, "[%d] class NULL", - class); - return -1; - } - /* copy descriptor for this class */ - copy_config (urb, class_descriptor, - sizeof (struct usb_class_descriptor), - max); - } -#endif - - /* iterate across endpoints for this alternate interface */ - interface_descriptor = alternate_instance->interface_descriptor; - for (bNumEndpoint = 0; - bNumEndpoint < alternate_instance->endpoints; - bNumEndpoint++) { - struct usb_endpoint_descriptor *endpoint_descriptor; - dbg_ep0 (3, "[%d:%d:%d] endpoint: %d", - bNumInterface, - bAlternateSetting, - bNumEndpoint, - interface_descriptor-> - bNumEndpoints); - if (!(endpoint_descriptor = usbd_device_endpoint_descriptor_index (device, port, index, bNumInterface, bAlternateSetting, bNumEndpoint))) { - dbg_ep0 (3, "[%d] endpoint NULL", - bNumEndpoint); - return -1; - } - /* copy descriptor for this endpoint */ - copy_config (urb, endpoint_descriptor, - sizeof (struct usb_endpoint_descriptor), - max); - } - } - } - dbg_ep0 (3, "lengths: %d %d", - le16_to_cpu (configuration_descriptor->wTotalLength), - urb->actual_length); + cpu_to_le16(configuration_descriptor->wTotalLength), + max); } + break; case USB_DESCRIPTOR_TYPE_STRING: { struct usb_string_descriptor *string_descriptor; - if (!(string_descriptor = usbd_get_string (index))) { + serial_printf("Invalid string index %d\n", index); return -1; } - /*dbg_ep0(3, "string_descriptor: %p", string_descriptor); */ + dbg_ep0(3, "string_descriptor: %p length %d", string_descriptor, string_descriptor->bLength); copy_config (urb, string_descriptor, string_descriptor->bLength, max); } break; case USB_DESCRIPTOR_TYPE_INTERFACE: + serial_printf("USB_DESCRIPTOR_TYPE_INTERFACE - error not implemented\n"); return -1; case USB_DESCRIPTOR_TYPE_ENDPOINT: + serial_printf("USB_DESCRIPTOR_TYPE_ENDPOINT - error not implemented\n"); return -1; case USB_DESCRIPTOR_TYPE_HID: { + serial_printf("USB_DESCRIPTOR_TYPE_HID - error not implemented\n"); return -1; /* unsupported at this time */ #if 0 int bNumInterface = @@ -403,6 +309,7 @@ static int ep0_get_descriptor (struct usb_device_instance *device, break; case USB_DESCRIPTOR_TYPE_REPORT: { + serial_printf("USB_DESCRIPTOR_TYPE_REPORT - error not implemented\n"); return -1; /* unsupported at this time */ #if 0 int bNumInterface = @@ -434,12 +341,19 @@ static int ep0_get_descriptor (struct usb_device_instance *device, #endif } break; + case USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER: + { + /* If a USB device supports both a full speed and low speed operation + * we must send a Device_Qualifier descriptor here + */ + return -1; + } default: return -1; } - dbg_ep0 (1, "urb: buffer: %p buffer_length: %2d actual_length: %2d packet size: %2d", + dbg_ep0 (1, "urb: buffer: %p buffer_length: %2d actual_length: %2d tx_packetSize: %2d", urb->buffer, urb->buffer_length, urb->actual_length, device->bus->endpoint_array[0].tx_packetSize); /* @@ -495,6 +409,12 @@ int ep0_recv_setup (struct urb *urb) /* handle USB Standard Request (c.f. USB Spec table 9-2) */ if ((request->bmRequestType & USB_REQ_TYPE_MASK) != 0) { + if(device->device_state <= STATE_CONFIGURED){ + /* Attempt to handle a CDC specific request if we are + * in the configured state. + */ + return device->cdc_recv_setup(request,urb); + } dbg_ep0 (1, "non standard request: %x", request->bmRequestType & USB_REQ_TYPE_MASK); return -1; /* Stall here */ @@ -567,6 +487,7 @@ int ep0_recv_setup (struct urb *urb) le16_to_cpu (request->wValue) & 0xff); case USB_REQ_GET_CONFIGURATION: + serial_printf("get config %d\n", device->configuration); return ep0_get_one (device, urb, device->configuration); @@ -642,7 +563,6 @@ int ep0_recv_setup (struct urb *urb) /*dbg_ep0(2, "address: %d %d %d", */ /* request->wValue, le16_to_cpu(request->wValue), device->address); */ - serial_printf ("DEVICE_ADDRESS_ASSIGNED.. event?\n"); return 0; case USB_REQ_SET_DESCRIPTOR: /* XXX should we support this? */ @@ -653,9 +573,10 @@ int ep0_recv_setup (struct urb *urb) /* c.f. 9.4.7 - the top half of wValue is reserved */ /* */ if ((device->configuration = - le16_to_cpu (request->wValue) & 0x7f) != 0) { + le16_to_cpu (request->wValue) & 0xFF80) != 0) { /* c.f. 9.4.7 - zero is the default or addressed state, in our case this */ /* is the same is configuration zero */ + serial_printf("error setting dev->config to zero!\n"); device->configuration = 0; /* TBR - ?????? */ } /* reset interface and alternate settings */ |