summaryrefslogtreecommitdiffstats
path: root/drivers/usb/device/usbdcore_ep0.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/device/usbdcore_ep0.c')
-rw-r--r--drivers/usb/device/usbdcore_ep0.c613
1 files changed, 0 insertions, 613 deletions
diff --git a/drivers/usb/device/usbdcore_ep0.c b/drivers/usb/device/usbdcore_ep0.c
deleted file mode 100644
index 8899b71308..0000000000
--- a/drivers/usb/device/usbdcore_ep0.c
+++ /dev/null
@@ -1,613 +0,0 @@
-/*
- * (C) Copyright 2003
- * Gerry Hamel, geh@ti.com, Texas Instruments
- *
- * Based on
- * linux/drivers/usbd/ep0.c
- *
- * Copyright (c) 2000, 2001, 2002 Lineo
- * Copyright (c) 2001 Hewlett Packard
- *
- * By:
- * Stuart Lynne <sl@lineo.com>,
- * Tom Rushworth <tbr@lineo.com>,
- * Bruce Balden <balden@lineo.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-/*
- * This is the builtin ep0 control function. It implements all required functionality
- * for responding to control requests (SETUP packets).
- *
- * XXX
- *
- * Currently we do not pass any SETUP packets (or other) to the configured
- * function driver. This may need to change.
- *
- * XXX
- */
-
-#include <common.h>
-
-#if defined(CONFIG_OMAP1510) && defined(CONFIG_USB_DEVICE)
-#include "usbdcore.h"
-
-#define dbg_ep0(lvl,fmt,args...)
-
-/* EP0 Configuration Set ********************************************************************* */
-
-
-/**
- * ep0_get_status - fill in URB data with appropriate status
- * @device:
- * @urb:
- * @index:
- * @requesttype:
- *
- */
-static int ep0_get_status (struct usb_device_instance *device,
- struct urb *urb, int index, int requesttype)
-{
- char *cp;
-
- urb->actual_length = 2;
- cp = urb->buffer;
- cp[0] = cp[1] = 0;
-
- switch (requesttype) {
- case USB_REQ_RECIPIENT_DEVICE:
- cp[0] = USB_STATUS_SELFPOWERED;
- break;
- case USB_REQ_RECIPIENT_INTERFACE:
- break;
- case USB_REQ_RECIPIENT_ENDPOINT:
- cp[0] = usbd_endpoint_halted (device, index);
- break;
- case USB_REQ_RECIPIENT_OTHER:
- urb->actual_length = 0;
- default:
- break;
- }
- dbg_ep0 (2, "%02x %02x", cp[0], cp[1]);
- return 0;
-}
-
-/**
- * ep0_get_one
- * @device:
- * @urb:
- * @result:
- *
- * Set a single byte value in the urb send buffer. Return non-zero to signal
- * a request error.
- */
-static int ep0_get_one (struct usb_device_instance *device, struct urb *urb,
- __u8 result)
-{
- urb->actual_length = 1; /* XXX 2? */
- ((char *) urb->buffer)[0] = result;
- return 0;
-}
-
-/**
- * copy_config
- * @urb: pointer to urb
- * @data: pointer to configuration data
- * @length: length of data
- *
- * 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,
- int max_buf)
-{
- int available;
- int length;
-
- /*dbg_ep0(3, "-> actual: %d buf: %d max_buf: %d max_length: %d data: %p", */
- /* urb->actual_length, urb->buffer_length, max_buf, max_length, data); */
-
- if (!data) {
- dbg_ep0 (1, "data is NULL");
- return;
- }
- if (!(length = *(unsigned char *) data)) {
- dbg_ep0 (1, "length is zero");
- return;
- }
-
- if (length > max_length) {
- dbg_ep0 (1, "length: %d >= max_length: %d", length,
- max_length);
- return;
- }
- /*dbg_ep0(1, " actual: %d buf: %d max_buf: %d max_length: %d length: %d", */
- /* urb->actual_length, urb->buffer_length, max_buf, max_length, length); */
-
- if ((available =
- /*urb->buffer_length */ max_buf - urb->actual_length) <= 0) {
- return;
- }
- /*dbg_ep0(1, "actual: %d buf: %d max_buf: %d length: %d available: %d", */
- /* urb->actual_length, urb->buffer_length, max_buf, length, available); */
-
- if (length > available) {
- length = available;
- }
- /*dbg_ep0(1, "actual: %d buf: %d max_buf: %d length: %d available: %d", */
- /* urb->actual_length, urb->buffer_length, max_buf, length, available); */
-
- memcpy (urb->buffer + urb->actual_length, data, length);
- urb->actual_length += length;
-
- dbg_ep0 (3,
- "copy_config: <- actual: %d buf: %d max_buf: %d max_length: %d available: %d",
- urb->actual_length, urb->buffer_length, max_buf, max_length,
- available);
-}
-
-/**
- * ep0_get_descriptor
- * @device:
- * @urb:
- * @max:
- * @descriptor_type:
- * @index:
- *
- * Called by ep0_rx_process for a get descriptor device command. Determine what
- * descriptor is being requested, copy to send buffer. Return zero if ok to send,
- * return non-zero to signal a request error.
- */
-static int ep0_get_descriptor (struct usb_device_instance *device,
- struct urb *urb, int max, int descriptor_type,
- int index)
-{
- int port = 0; /* XXX compound device */
- char *cp;
-
- /*dbg_ep0(3, "max: %x type: %x index: %x", max, descriptor_type, index); */
-
- if (!urb || !urb->buffer || !urb->buffer_length
- || (urb->buffer_length < 255)) {
- dbg_ep0 (2, "invalid urb %p", urb);
- return -1L;
- }
-
- /* setup tx urb */
- urb->actual_length = 0;
- cp = urb->buffer;
-
- dbg_ep0 (2, "%s", USBD_DEVICE_DESCRIPTORS (descriptor_type));
-
- switch (descriptor_type) {
- case USB_DESCRIPTOR_TYPE_DEVICE:
- {
- struct usb_device_descriptor *device_descriptor;
-
- if (!
- (device_descriptor =
- usbd_device_device_descriptor (device, port))) {
- return -1;
- }
- /* copy descriptor for this device */
- copy_config (urb, device_descriptor,
- sizeof (struct usb_device_descriptor),
- max);
-
- /* 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); */
- 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))) {
- return -1;
- }
- /*dbg_ep0(2, "%d %d", index, device_descriptor->bNumConfigurations); */
- if (index > device_descriptor->bNumConfigurations) {
- dbg_ep0 (0, "index too large: %d > %d", index,
- device_descriptor->
- bNumConfigurations);
- return -1;
- }
-
- if (!
- (configuration_descriptor =
- usbd_device_configuration_descriptor (device,
- port,
- index))) {
- dbg_ep0 (0,
- "usbd_device_configuration_descriptor failed: %d",
- index);
- return -1;
- }
- 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 */
-
- /* 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);
- }
- break;
-
- case USB_DESCRIPTOR_TYPE_STRING:
- {
- struct usb_string_descriptor *string_descriptor;
-
- if (!(string_descriptor = usbd_get_string (index))) {
- return -1;
- }
- /*dbg_ep0(3, "string_descriptor: %p", string_descriptor); */
- copy_config (urb, string_descriptor, string_descriptor->bLength, max);
- }
- break;
- case USB_DESCRIPTOR_TYPE_INTERFACE:
- return -1;
- case USB_DESCRIPTOR_TYPE_ENDPOINT:
- return -1;
- case USB_DESCRIPTOR_TYPE_HID:
- {
- return -1; /* unsupported at this time */
- }
- break;
- case USB_DESCRIPTOR_TYPE_REPORT:
- {
- return -1; /* unsupported at this time */
- }
- break;
- default:
- return -1;
- }
-
-
- dbg_ep0 (1, "urb: buffer: %p buffer_length: %2d actual_length: %2d packet size: %2d",
- urb->buffer, urb->buffer_length, urb->actual_length,
- device->bus->endpoint_array[0].tx_packetSize);
-/*
- if ((urb->actual_length < max) && !(urb->actual_length % device->bus->endpoint_array[0].tx_packetSize)) {
- dbg_ep0(0, "adding null byte");
- urb->buffer[urb->actual_length++] = 0;
- dbg_ep0(0, "urb: buffer_length: %2d actual_length: %2d packet size: %2d",
- urb->buffer_length, urb->actual_length device->bus->endpoint_array[0].tx_packetSize);
- }
-*/
- return 0;
-
-}
-
-/**
- * ep0_recv_setup - called to indicate URB has been received
- * @urb: pointer to struct urb
- *
- * Check if this is a setup packet, process the device request, put results
- * back into the urb and return zero or non-zero to indicate success (DATA)
- * or failure (STALL).
- *
- */
-int ep0_recv_setup (struct urb *urb)
-{
- /*struct usb_device_request *request = urb->buffer; */
- /*struct usb_device_instance *device = urb->device; */
-
- struct usb_device_request *request;
- struct usb_device_instance *device;
- int address;
-
- dbg_ep0 (0, "entering ep0_recv_setup()");
- if (!urb || !urb->device) {
- dbg_ep0 (3, "invalid URB %p", urb);
- return -1;
- }
-
- request = &urb->device_request;
- device = urb->device;
-
- dbg_ep0 (3, "urb: %p device: %p", urb, urb->device);
-
-
- /*dbg_ep0(2, "- - - - - - - - - -"); */
-
- dbg_ep0 (2,
- "bmRequestType:%02x bRequest:%02x wValue:%04x wIndex:%04x wLength:%04x %s",
- request->bmRequestType, request->bRequest,
- le16_to_cpu (request->wValue), le16_to_cpu (request->wIndex),
- le16_to_cpu (request->wLength),
- USBD_DEVICE_REQUESTS (request->bRequest));
-
- /* handle USB Standard Request (c.f. USB Spec table 9-2) */
- if ((request->bmRequestType & USB_REQ_TYPE_MASK) != 0) {
- dbg_ep0 (1, "non standard request: %x",
- request->bmRequestType & USB_REQ_TYPE_MASK);
- return -1; /* Stall here */
- }
-
- switch (device->device_state) {
- case STATE_CREATED:
- case STATE_ATTACHED:
- case STATE_POWERED:
- /* It actually is important to allow requests in these states,
- * Windows will request descriptors before assigning an
- * address to the client.
- */
-
- /*dbg_ep0 (1, "request %s not allowed in this state: %s", */
- /* USBD_DEVICE_REQUESTS(request->bRequest), */
- /* usbd_device_states[device->device_state]); */
- /*return -1; */
- break;
-
- case STATE_INIT:
- case STATE_DEFAULT:
- switch (request->bRequest) {
- case USB_REQ_GET_STATUS:
- case USB_REQ_GET_INTERFACE:
- case USB_REQ_SYNCH_FRAME: /* XXX should never see this (?) */
- case USB_REQ_CLEAR_FEATURE:
- case USB_REQ_SET_FEATURE:
- case USB_REQ_SET_DESCRIPTOR:
- /* case USB_REQ_SET_CONFIGURATION: */
- case USB_REQ_SET_INTERFACE:
- dbg_ep0 (1,
- "request %s not allowed in DEFAULT state: %s",
- USBD_DEVICE_REQUESTS (request->bRequest),
- usbd_device_states[device->device_state]);
- return -1;
-
- case USB_REQ_SET_CONFIGURATION:
- case USB_REQ_SET_ADDRESS:
- case USB_REQ_GET_DESCRIPTOR:
- case USB_REQ_GET_CONFIGURATION:
- break;
- }
- case STATE_ADDRESSED:
- case STATE_CONFIGURED:
- break;
- case STATE_UNKNOWN:
- dbg_ep0 (1, "request %s not allowed in UNKNOWN state: %s",
- USBD_DEVICE_REQUESTS (request->bRequest),
- usbd_device_states[device->device_state]);
- return -1;
- }
-
- /* handle all requests that return data (direction bit set on bm RequestType) */
- if ((request->bmRequestType & USB_REQ_DIRECTION_MASK)) {
-
- dbg_ep0 (3, "Device-to-Host");
-
- switch (request->bRequest) {
-
- case USB_REQ_GET_STATUS:
- return ep0_get_status (device, urb, request->wIndex,
- request->bmRequestType &
- USB_REQ_RECIPIENT_MASK);
-
- case USB_REQ_GET_DESCRIPTOR:
- return ep0_get_descriptor (device, urb,
- le16_to_cpu (request->wLength),
- le16_to_cpu (request->wValue) >> 8,
- le16_to_cpu (request->wValue) & 0xff);
-
- case USB_REQ_GET_CONFIGURATION:
- return ep0_get_one (device, urb,
- device->configuration);
-
- case USB_REQ_GET_INTERFACE:
- return ep0_get_one (device, urb, device->alternate);
-
- case USB_REQ_SYNCH_FRAME: /* XXX should never see this (?) */
- return -1;
-
- case USB_REQ_CLEAR_FEATURE:
- case USB_REQ_SET_FEATURE:
- case USB_REQ_SET_ADDRESS:
- case USB_REQ_SET_DESCRIPTOR:
- case USB_REQ_SET_CONFIGURATION:
- case USB_REQ_SET_INTERFACE:
- return -1;
- }
- }
- /* handle the requests that do not return data */
- else {
-
-
- /*dbg_ep0(3, "Host-to-Device"); */
- switch (request->bRequest) {
-
- case USB_REQ_CLEAR_FEATURE:
- case USB_REQ_SET_FEATURE:
- dbg_ep0 (0, "Host-to-Device");
- switch (request->
- bmRequestType & USB_REQ_RECIPIENT_MASK) {
- case USB_REQ_RECIPIENT_DEVICE:
- /* XXX DEVICE_REMOTE_WAKEUP or TEST_MODE would be added here */
- /* XXX fall through for now as we do not support either */
- case USB_REQ_RECIPIENT_INTERFACE:
- case USB_REQ_RECIPIENT_OTHER:
- dbg_ep0 (0, "request %s not",
- USBD_DEVICE_REQUESTS (request->bRequest));
- default:
- return -1;
-
- case USB_REQ_RECIPIENT_ENDPOINT:
- dbg_ep0 (0, "ENDPOINT: %x", le16_to_cpu (request->wValue));
- if (le16_to_cpu (request->wValue) == USB_ENDPOINT_HALT) {
- /*return usbd_device_feature (device, le16_to_cpu (request->wIndex), */
- /* request->bRequest == USB_REQ_SET_FEATURE); */
- /* NEED TO IMPLEMENT THIS!!! */
- return -1;
- } else {
- dbg_ep0 (1, "request %s bad wValue: %04x",
- USBD_DEVICE_REQUESTS
- (request->bRequest),
- le16_to_cpu (request->wValue));
- return -1;
- }
- }
-
- case USB_REQ_SET_ADDRESS:
- /* check if this is a re-address, reset first if it is (this shouldn't be possible) */
- if (device->device_state != STATE_DEFAULT) {
- dbg_ep0 (1, "set_address: %02x state: %s",
- le16_to_cpu (request->wValue),
- usbd_device_states[device->device_state]);
- return -1;
- }
- address = le16_to_cpu (request->wValue);
- if ((address & 0x7f) != address) {
- dbg_ep0 (1, "invalid address %04x %04x",
- address, address & 0x7f);
- return -1;
- }
- device->address = address;
-
- /*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? */
- dbg_ep0 (0, "set descriptor: NOT SUPPORTED");
- return -1;
-
- case USB_REQ_SET_CONFIGURATION:
- /* c.f. 9.4.7 - the top half of wValue is reserved */
- /* */
- if ((device->configuration =
- le16_to_cpu (request->wValue) & 0x7f) != 0) {
- /* c.f. 9.4.7 - zero is the default or addressed state, in our case this */
- /* is the same is configuration zero */
- device->configuration = 0; /* TBR - ?????? */
- }
- /* reset interface and alternate settings */
- device->interface = device->alternate = 0;
-
- /*dbg_ep0(2, "set configuration: %d", device->configuration); */
- /*serial_printf("DEVICE_CONFIGURED.. event?\n"); */
- return 0;
-
- case USB_REQ_SET_INTERFACE:
- device->interface = le16_to_cpu (request->wIndex);
- device->alternate = le16_to_cpu (request->wValue);
- /*dbg_ep0(2, "set interface: %d alternate: %d", device->interface, device->alternate); */
- serial_printf ("DEVICE_SET_INTERFACE.. event?\n");
- return 0;
-
- case USB_REQ_GET_STATUS:
- case USB_REQ_GET_DESCRIPTOR:
- case USB_REQ_GET_CONFIGURATION:
- case USB_REQ_GET_INTERFACE:
- case USB_REQ_SYNCH_FRAME: /* XXX should never see this (?) */
- return -1;
- }
- }
- return -1;
-}
-
-#endif