upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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837 lines
19 KiB
837 lines
19 KiB
/*
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* f_dfu.c -- Device Firmware Update USB function
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*
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* Copyright (C) 2012 Samsung Electronics
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* authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
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* Lukasz Majewski <l.majewski@samsung.com>
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*
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* Based on OpenMoko u-boot: drivers/usb/usbdfu.c
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* (C) 2007 by OpenMoko, Inc.
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* Author: Harald Welte <laforge@openmoko.org>
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*
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* based on existing SAM7DFU code from OpenPCD:
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* (C) Copyright 2006 by Harald Welte <hwelte at hmw-consulting.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <errno.h>
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#include <common.h>
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#include <malloc.h>
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#include <linux/usb/ch9.h>
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#include <linux/usb/gadget.h>
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#include <linux/usb/composite.h>
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#include <dfu.h>
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#include <g_dnl.h>
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#include "f_dfu.h"
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struct f_dfu {
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struct usb_function usb_function;
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struct usb_descriptor_header **function;
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struct usb_string *strings;
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/* when configured, we have one config */
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u8 config;
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u8 altsetting;
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enum dfu_state dfu_state;
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unsigned int dfu_status;
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/* Send/received block number is handy for data integrity check */
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int blk_seq_num;
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unsigned int poll_timeout;
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};
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typedef int (*dfu_state_fn) (struct f_dfu *,
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const struct usb_ctrlrequest *,
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struct usb_gadget *,
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struct usb_request *);
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static inline struct f_dfu *func_to_dfu(struct usb_function *f)
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{
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return container_of(f, struct f_dfu, usb_function);
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}
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static const struct dfu_function_descriptor dfu_func = {
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.bLength = sizeof dfu_func,
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.bDescriptorType = DFU_DT_FUNC,
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.bmAttributes = DFU_BIT_WILL_DETACH |
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DFU_BIT_MANIFESTATION_TOLERANT |
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DFU_BIT_CAN_UPLOAD |
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DFU_BIT_CAN_DNLOAD,
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.wDetachTimeOut = 0,
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.wTransferSize = DFU_USB_BUFSIZ,
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.bcdDFUVersion = __constant_cpu_to_le16(0x0110),
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};
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static struct usb_interface_descriptor dfu_intf_runtime = {
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.bLength = sizeof dfu_intf_runtime,
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.bDescriptorType = USB_DT_INTERFACE,
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.bNumEndpoints = 0,
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.bInterfaceClass = USB_CLASS_APP_SPEC,
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.bInterfaceSubClass = 1,
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.bInterfaceProtocol = 1,
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/* .iInterface = DYNAMIC */
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};
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static struct usb_descriptor_header *dfu_runtime_descs[] = {
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(struct usb_descriptor_header *) &dfu_intf_runtime,
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NULL,
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};
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static const char dfu_name[] = "Device Firmware Upgrade";
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/*
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* static strings, in UTF-8
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*
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* dfu_generic configuration
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*/
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static struct usb_string strings_dfu_generic[] = {
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[0].s = dfu_name,
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{ } /* end of list */
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};
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static struct usb_gadget_strings stringtab_dfu_generic = {
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.language = 0x0409, /* en-us */
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.strings = strings_dfu_generic,
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};
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static struct usb_gadget_strings *dfu_generic_strings[] = {
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&stringtab_dfu_generic,
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NULL,
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};
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/*
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* usb_function specific
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*/
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static struct usb_gadget_strings stringtab_dfu = {
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.language = 0x0409, /* en-us */
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/*
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* .strings
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*
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* assigned during initialization,
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* depends on number of flash entities
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*
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*/
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};
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static struct usb_gadget_strings *dfu_strings[] = {
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&stringtab_dfu,
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NULL,
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};
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static void dfu_set_poll_timeout(struct dfu_status *dstat, unsigned int ms)
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{
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/*
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* The bwPollTimeout DFU_GETSTATUS request payload provides information
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* about minimum time, in milliseconds, that the host should wait before
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* sending a subsequent DFU_GETSTATUS request
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*
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* This permits the device to vary the delay depending on its need to
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* erase or program the memory
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*
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*/
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unsigned char *p = (unsigned char *)&ms;
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if (!ms || (ms & ~DFU_POLL_TIMEOUT_MASK)) {
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dstat->bwPollTimeout[0] = 0;
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dstat->bwPollTimeout[1] = 0;
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dstat->bwPollTimeout[2] = 0;
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return;
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}
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dstat->bwPollTimeout[0] = *p++;
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dstat->bwPollTimeout[1] = *p++;
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dstat->bwPollTimeout[2] = *p;
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}
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/*-------------------------------------------------------------------------*/
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static void dnload_request_complete(struct usb_ep *ep, struct usb_request *req)
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{
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struct f_dfu *f_dfu = req->context;
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int ret;
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ret = dfu_write(dfu_get_entity(f_dfu->altsetting), req->buf,
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req->length, f_dfu->blk_seq_num);
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if (ret) {
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f_dfu->dfu_status = DFU_STATUS_errUNKNOWN;
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f_dfu->dfu_state = DFU_STATE_dfuERROR;
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}
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}
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static void dnload_request_flush(struct usb_ep *ep, struct usb_request *req)
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{
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struct f_dfu *f_dfu = req->context;
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int ret;
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ret = dfu_flush(dfu_get_entity(f_dfu->altsetting), req->buf,
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req->length, f_dfu->blk_seq_num);
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if (ret) {
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f_dfu->dfu_status = DFU_STATUS_errUNKNOWN;
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f_dfu->dfu_state = DFU_STATE_dfuERROR;
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}
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}
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static inline int dfu_get_manifest_timeout(struct dfu_entity *dfu)
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{
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return dfu->poll_timeout ? dfu->poll_timeout(dfu) :
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DFU_MANIFEST_POLL_TIMEOUT;
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}
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static void handle_getstatus(struct usb_request *req)
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{
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struct dfu_status *dstat = (struct dfu_status *)req->buf;
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struct f_dfu *f_dfu = req->context;
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struct dfu_entity *dfu = dfu_get_entity(f_dfu->altsetting);
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dfu_set_poll_timeout(dstat, 0);
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switch (f_dfu->dfu_state) {
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case DFU_STATE_dfuDNLOAD_SYNC:
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case DFU_STATE_dfuDNBUSY:
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f_dfu->dfu_state = DFU_STATE_dfuDNLOAD_IDLE;
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break;
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case DFU_STATE_dfuMANIFEST_SYNC:
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f_dfu->dfu_state = DFU_STATE_dfuMANIFEST;
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break;
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case DFU_STATE_dfuMANIFEST:
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dfu_set_poll_timeout(dstat, dfu_get_manifest_timeout(dfu));
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break;
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default:
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break;
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}
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if (f_dfu->poll_timeout)
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if (!(f_dfu->blk_seq_num %
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(dfu_get_buf_size() / DFU_USB_BUFSIZ)))
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dfu_set_poll_timeout(dstat, f_dfu->poll_timeout);
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/* send status response */
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dstat->bStatus = f_dfu->dfu_status;
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dstat->bState = f_dfu->dfu_state;
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dstat->iString = 0;
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}
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static void handle_getstate(struct usb_request *req)
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{
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struct f_dfu *f_dfu = req->context;
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((u8 *)req->buf)[0] = f_dfu->dfu_state;
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req->actual = sizeof(u8);
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}
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static inline void to_dfu_mode(struct f_dfu *f_dfu)
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{
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f_dfu->usb_function.strings = dfu_strings;
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f_dfu->usb_function.hs_descriptors = f_dfu->function;
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f_dfu->usb_function.descriptors = f_dfu->function;
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f_dfu->dfu_state = DFU_STATE_dfuIDLE;
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}
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static inline void to_runtime_mode(struct f_dfu *f_dfu)
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{
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f_dfu->usb_function.strings = NULL;
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f_dfu->usb_function.hs_descriptors = dfu_runtime_descs;
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f_dfu->usb_function.descriptors = dfu_runtime_descs;
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}
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static int handle_upload(struct usb_request *req, u16 len)
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{
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struct f_dfu *f_dfu = req->context;
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return dfu_read(dfu_get_entity(f_dfu->altsetting), req->buf,
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req->length, f_dfu->blk_seq_num);
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}
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static int handle_dnload(struct usb_gadget *gadget, u16 len)
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{
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struct usb_composite_dev *cdev = get_gadget_data(gadget);
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struct usb_request *req = cdev->req;
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struct f_dfu *f_dfu = req->context;
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if (len == 0)
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f_dfu->dfu_state = DFU_STATE_dfuMANIFEST_SYNC;
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req->complete = dnload_request_complete;
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return len;
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}
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/*-------------------------------------------------------------------------*/
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/* DFU state machine */
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static int state_app_idle(struct f_dfu *f_dfu,
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const struct usb_ctrlrequest *ctrl,
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struct usb_gadget *gadget,
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struct usb_request *req)
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{
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int value = 0;
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switch (ctrl->bRequest) {
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case USB_REQ_DFU_GETSTATUS:
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handle_getstatus(req);
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value = RET_STAT_LEN;
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break;
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case USB_REQ_DFU_GETSTATE:
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handle_getstate(req);
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break;
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case USB_REQ_DFU_DETACH:
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f_dfu->dfu_state = DFU_STATE_appDETACH;
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to_dfu_mode(f_dfu);
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value = RET_ZLP;
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break;
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default:
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value = RET_STALL;
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break;
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}
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return value;
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}
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static int state_app_detach(struct f_dfu *f_dfu,
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const struct usb_ctrlrequest *ctrl,
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struct usb_gadget *gadget,
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struct usb_request *req)
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{
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int value = 0;
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switch (ctrl->bRequest) {
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case USB_REQ_DFU_GETSTATUS:
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handle_getstatus(req);
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value = RET_STAT_LEN;
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break;
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case USB_REQ_DFU_GETSTATE:
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handle_getstate(req);
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break;
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default:
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f_dfu->dfu_state = DFU_STATE_appIDLE;
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value = RET_STALL;
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break;
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}
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return value;
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}
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static int state_dfu_idle(struct f_dfu *f_dfu,
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const struct usb_ctrlrequest *ctrl,
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struct usb_gadget *gadget,
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struct usb_request *req)
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{
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u16 w_value = le16_to_cpu(ctrl->wValue);
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u16 len = le16_to_cpu(ctrl->wLength);
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int value = 0;
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switch (ctrl->bRequest) {
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case USB_REQ_DFU_DNLOAD:
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if (len == 0) {
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f_dfu->dfu_state = DFU_STATE_dfuERROR;
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value = RET_STALL;
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break;
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}
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f_dfu->dfu_state = DFU_STATE_dfuDNLOAD_SYNC;
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f_dfu->blk_seq_num = w_value;
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value = handle_dnload(gadget, len);
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break;
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case USB_REQ_DFU_UPLOAD:
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f_dfu->dfu_state = DFU_STATE_dfuUPLOAD_IDLE;
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f_dfu->blk_seq_num = 0;
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value = handle_upload(req, len);
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break;
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case USB_REQ_DFU_ABORT:
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/* no zlp? */
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value = RET_ZLP;
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break;
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case USB_REQ_DFU_GETSTATUS:
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handle_getstatus(req);
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value = RET_STAT_LEN;
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break;
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case USB_REQ_DFU_GETSTATE:
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handle_getstate(req);
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break;
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case USB_REQ_DFU_DETACH:
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/*
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* Proprietary extension: 'detach' from idle mode and
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* get back to runtime mode in case of USB Reset. As
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* much as I dislike this, we just can't use every USB
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* bus reset to switch back to runtime mode, since at
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* least the Linux USB stack likes to send a number of
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* resets in a row :(
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*/
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f_dfu->dfu_state =
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DFU_STATE_dfuMANIFEST_WAIT_RST;
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to_runtime_mode(f_dfu);
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f_dfu->dfu_state = DFU_STATE_appIDLE;
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dfu_trigger_detach();
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break;
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default:
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f_dfu->dfu_state = DFU_STATE_dfuERROR;
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value = RET_STALL;
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break;
|
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}
|
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return value;
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}
|
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|
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static int state_dfu_dnload_sync(struct f_dfu *f_dfu,
|
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const struct usb_ctrlrequest *ctrl,
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struct usb_gadget *gadget,
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struct usb_request *req)
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{
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int value = 0;
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switch (ctrl->bRequest) {
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case USB_REQ_DFU_GETSTATUS:
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handle_getstatus(req);
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value = RET_STAT_LEN;
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break;
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case USB_REQ_DFU_GETSTATE:
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handle_getstate(req);
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break;
|
|
default:
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f_dfu->dfu_state = DFU_STATE_dfuERROR;
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value = RET_STALL;
|
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break;
|
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}
|
|
|
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return value;
|
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}
|
|
|
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static int state_dfu_dnbusy(struct f_dfu *f_dfu,
|
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const struct usb_ctrlrequest *ctrl,
|
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struct usb_gadget *gadget,
|
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struct usb_request *req)
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{
|
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int value = 0;
|
|
|
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switch (ctrl->bRequest) {
|
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case USB_REQ_DFU_GETSTATUS:
|
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handle_getstatus(req);
|
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value = RET_STAT_LEN;
|
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break;
|
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default:
|
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f_dfu->dfu_state = DFU_STATE_dfuERROR;
|
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value = RET_STALL;
|
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break;
|
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}
|
|
|
|
return value;
|
|
}
|
|
|
|
static int state_dfu_dnload_idle(struct f_dfu *f_dfu,
|
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const struct usb_ctrlrequest *ctrl,
|
|
struct usb_gadget *gadget,
|
|
struct usb_request *req)
|
|
{
|
|
u16 w_value = le16_to_cpu(ctrl->wValue);
|
|
u16 len = le16_to_cpu(ctrl->wLength);
|
|
int value = 0;
|
|
|
|
switch (ctrl->bRequest) {
|
|
case USB_REQ_DFU_DNLOAD:
|
|
f_dfu->dfu_state = DFU_STATE_dfuDNLOAD_SYNC;
|
|
f_dfu->blk_seq_num = w_value;
|
|
value = handle_dnload(gadget, len);
|
|
break;
|
|
case USB_REQ_DFU_ABORT:
|
|
f_dfu->dfu_state = DFU_STATE_dfuIDLE;
|
|
value = RET_ZLP;
|
|
break;
|
|
case USB_REQ_DFU_GETSTATUS:
|
|
handle_getstatus(req);
|
|
value = RET_STAT_LEN;
|
|
break;
|
|
case USB_REQ_DFU_GETSTATE:
|
|
handle_getstate(req);
|
|
break;
|
|
default:
|
|
f_dfu->dfu_state = DFU_STATE_dfuERROR;
|
|
value = RET_STALL;
|
|
break;
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
static int state_dfu_manifest_sync(struct f_dfu *f_dfu,
|
|
const struct usb_ctrlrequest *ctrl,
|
|
struct usb_gadget *gadget,
|
|
struct usb_request *req)
|
|
{
|
|
int value = 0;
|
|
|
|
switch (ctrl->bRequest) {
|
|
case USB_REQ_DFU_GETSTATUS:
|
|
/* We're MainfestationTolerant */
|
|
f_dfu->dfu_state = DFU_STATE_dfuMANIFEST;
|
|
handle_getstatus(req);
|
|
f_dfu->blk_seq_num = 0;
|
|
value = RET_STAT_LEN;
|
|
req->complete = dnload_request_flush;
|
|
break;
|
|
case USB_REQ_DFU_GETSTATE:
|
|
handle_getstate(req);
|
|
break;
|
|
default:
|
|
f_dfu->dfu_state = DFU_STATE_dfuERROR;
|
|
value = RET_STALL;
|
|
break;
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
static int state_dfu_manifest(struct f_dfu *f_dfu,
|
|
const struct usb_ctrlrequest *ctrl,
|
|
struct usb_gadget *gadget,
|
|
struct usb_request *req)
|
|
{
|
|
int value = 0;
|
|
|
|
switch (ctrl->bRequest) {
|
|
case USB_REQ_DFU_GETSTATUS:
|
|
/* We're MainfestationTolerant */
|
|
f_dfu->dfu_state = DFU_STATE_dfuIDLE;
|
|
handle_getstatus(req);
|
|
f_dfu->blk_seq_num = 0;
|
|
value = RET_STAT_LEN;
|
|
puts("DOWNLOAD ... OK\nCtrl+C to exit ...\n");
|
|
break;
|
|
case USB_REQ_DFU_GETSTATE:
|
|
handle_getstate(req);
|
|
break;
|
|
default:
|
|
f_dfu->dfu_state = DFU_STATE_dfuERROR;
|
|
value = RET_STALL;
|
|
break;
|
|
}
|
|
return value;
|
|
}
|
|
|
|
static int state_dfu_upload_idle(struct f_dfu *f_dfu,
|
|
const struct usb_ctrlrequest *ctrl,
|
|
struct usb_gadget *gadget,
|
|
struct usb_request *req)
|
|
{
|
|
u16 w_value = le16_to_cpu(ctrl->wValue);
|
|
u16 len = le16_to_cpu(ctrl->wLength);
|
|
int value = 0;
|
|
|
|
switch (ctrl->bRequest) {
|
|
case USB_REQ_DFU_UPLOAD:
|
|
/* state transition if less data then requested */
|
|
f_dfu->blk_seq_num = w_value;
|
|
value = handle_upload(req, len);
|
|
if (value >= 0 && value < len)
|
|
f_dfu->dfu_state = DFU_STATE_dfuIDLE;
|
|
break;
|
|
case USB_REQ_DFU_ABORT:
|
|
f_dfu->dfu_state = DFU_STATE_dfuIDLE;
|
|
/* no zlp? */
|
|
value = RET_ZLP;
|
|
break;
|
|
case USB_REQ_DFU_GETSTATUS:
|
|
handle_getstatus(req);
|
|
value = RET_STAT_LEN;
|
|
break;
|
|
case USB_REQ_DFU_GETSTATE:
|
|
handle_getstate(req);
|
|
break;
|
|
default:
|
|
f_dfu->dfu_state = DFU_STATE_dfuERROR;
|
|
value = RET_STALL;
|
|
break;
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
static int state_dfu_error(struct f_dfu *f_dfu,
|
|
const struct usb_ctrlrequest *ctrl,
|
|
struct usb_gadget *gadget,
|
|
struct usb_request *req)
|
|
{
|
|
int value = 0;
|
|
|
|
switch (ctrl->bRequest) {
|
|
case USB_REQ_DFU_GETSTATUS:
|
|
handle_getstatus(req);
|
|
value = RET_STAT_LEN;
|
|
break;
|
|
case USB_REQ_DFU_GETSTATE:
|
|
handle_getstate(req);
|
|
break;
|
|
case USB_REQ_DFU_CLRSTATUS:
|
|
f_dfu->dfu_state = DFU_STATE_dfuIDLE;
|
|
f_dfu->dfu_status = DFU_STATUS_OK;
|
|
/* no zlp? */
|
|
value = RET_ZLP;
|
|
break;
|
|
default:
|
|
f_dfu->dfu_state = DFU_STATE_dfuERROR;
|
|
value = RET_STALL;
|
|
break;
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
static dfu_state_fn dfu_state[] = {
|
|
state_app_idle, /* DFU_STATE_appIDLE */
|
|
state_app_detach, /* DFU_STATE_appDETACH */
|
|
state_dfu_idle, /* DFU_STATE_dfuIDLE */
|
|
state_dfu_dnload_sync, /* DFU_STATE_dfuDNLOAD_SYNC */
|
|
state_dfu_dnbusy, /* DFU_STATE_dfuDNBUSY */
|
|
state_dfu_dnload_idle, /* DFU_STATE_dfuDNLOAD_IDLE */
|
|
state_dfu_manifest_sync, /* DFU_STATE_dfuMANIFEST_SYNC */
|
|
state_dfu_manifest, /* DFU_STATE_dfuMANIFEST */
|
|
NULL, /* DFU_STATE_dfuMANIFEST_WAIT_RST */
|
|
state_dfu_upload_idle, /* DFU_STATE_dfuUPLOAD_IDLE */
|
|
state_dfu_error /* DFU_STATE_dfuERROR */
|
|
};
|
|
|
|
static int
|
|
dfu_handle(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
|
|
{
|
|
struct usb_gadget *gadget = f->config->cdev->gadget;
|
|
struct usb_request *req = f->config->cdev->req;
|
|
struct f_dfu *f_dfu = f->config->cdev->req->context;
|
|
u16 len = le16_to_cpu(ctrl->wLength);
|
|
u16 w_value = le16_to_cpu(ctrl->wValue);
|
|
int value = 0;
|
|
u8 req_type = ctrl->bRequestType & USB_TYPE_MASK;
|
|
|
|
debug("w_value: 0x%x len: 0x%x\n", w_value, len);
|
|
debug("req_type: 0x%x ctrl->bRequest: 0x%x f_dfu->dfu_state: 0x%x\n",
|
|
req_type, ctrl->bRequest, f_dfu->dfu_state);
|
|
|
|
if (req_type == USB_TYPE_STANDARD) {
|
|
if (ctrl->bRequest == USB_REQ_GET_DESCRIPTOR &&
|
|
(w_value >> 8) == DFU_DT_FUNC) {
|
|
value = min(len, (u16) sizeof(dfu_func));
|
|
memcpy(req->buf, &dfu_func, value);
|
|
}
|
|
} else /* DFU specific request */
|
|
value = dfu_state[f_dfu->dfu_state] (f_dfu, ctrl, gadget, req);
|
|
|
|
if (value >= 0) {
|
|
req->length = value;
|
|
req->zero = value < len;
|
|
value = usb_ep_queue(gadget->ep0, req, 0);
|
|
if (value < 0) {
|
|
debug("ep_queue --> %d\n", value);
|
|
req->status = 0;
|
|
}
|
|
}
|
|
|
|
return value;
|
|
}
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
static int
|
|
dfu_prepare_strings(struct f_dfu *f_dfu, int n)
|
|
{
|
|
struct dfu_entity *de = NULL;
|
|
int i = 0;
|
|
|
|
f_dfu->strings = calloc(sizeof(struct usb_string), n + 1);
|
|
if (!f_dfu->strings)
|
|
goto enomem;
|
|
|
|
for (i = 0; i < n; ++i) {
|
|
de = dfu_get_entity(i);
|
|
f_dfu->strings[i].s = de->name;
|
|
}
|
|
|
|
f_dfu->strings[i].id = 0;
|
|
f_dfu->strings[i].s = NULL;
|
|
|
|
return 0;
|
|
|
|
enomem:
|
|
while (i)
|
|
f_dfu->strings[--i].s = NULL;
|
|
|
|
free(f_dfu->strings);
|
|
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static int dfu_prepare_function(struct f_dfu *f_dfu, int n)
|
|
{
|
|
struct usb_interface_descriptor *d;
|
|
int i = 0;
|
|
|
|
f_dfu->function = calloc(sizeof(struct usb_descriptor_header *), n + 1);
|
|
if (!f_dfu->function)
|
|
goto enomem;
|
|
|
|
for (i = 0; i < n; ++i) {
|
|
d = calloc(sizeof(*d), 1);
|
|
if (!d)
|
|
goto enomem;
|
|
|
|
d->bLength = sizeof(*d);
|
|
d->bDescriptorType = USB_DT_INTERFACE;
|
|
d->bAlternateSetting = i;
|
|
d->bNumEndpoints = 0;
|
|
d->bInterfaceClass = USB_CLASS_APP_SPEC;
|
|
d->bInterfaceSubClass = 1;
|
|
d->bInterfaceProtocol = 2;
|
|
|
|
f_dfu->function[i] = (struct usb_descriptor_header *)d;
|
|
}
|
|
f_dfu->function[i] = NULL;
|
|
|
|
return 0;
|
|
|
|
enomem:
|
|
while (i) {
|
|
free(f_dfu->function[--i]);
|
|
f_dfu->function[i] = NULL;
|
|
}
|
|
free(f_dfu->function);
|
|
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static int dfu_bind(struct usb_configuration *c, struct usb_function *f)
|
|
{
|
|
struct usb_composite_dev *cdev = c->cdev;
|
|
struct f_dfu *f_dfu = func_to_dfu(f);
|
|
int alt_num = dfu_get_alt_number();
|
|
int rv, id, i;
|
|
|
|
id = usb_interface_id(c, f);
|
|
if (id < 0)
|
|
return id;
|
|
dfu_intf_runtime.bInterfaceNumber = id;
|
|
|
|
f_dfu->dfu_state = DFU_STATE_appIDLE;
|
|
f_dfu->dfu_status = DFU_STATUS_OK;
|
|
|
|
rv = dfu_prepare_function(f_dfu, alt_num);
|
|
if (rv)
|
|
goto error;
|
|
|
|
rv = dfu_prepare_strings(f_dfu, alt_num);
|
|
if (rv)
|
|
goto error;
|
|
for (i = 0; i < alt_num; i++) {
|
|
id = usb_string_id(cdev);
|
|
if (id < 0)
|
|
return id;
|
|
f_dfu->strings[i].id = id;
|
|
((struct usb_interface_descriptor *)f_dfu->function[i])
|
|
->iInterface = id;
|
|
}
|
|
|
|
to_dfu_mode(f_dfu);
|
|
|
|
stringtab_dfu.strings = f_dfu->strings;
|
|
|
|
cdev->req->context = f_dfu;
|
|
|
|
error:
|
|
return rv;
|
|
}
|
|
|
|
static void dfu_unbind(struct usb_configuration *c, struct usb_function *f)
|
|
{
|
|
struct f_dfu *f_dfu = func_to_dfu(f);
|
|
int alt_num = dfu_get_alt_number();
|
|
int i;
|
|
|
|
if (f_dfu->strings) {
|
|
i = alt_num;
|
|
while (i)
|
|
f_dfu->strings[--i].s = NULL;
|
|
|
|
free(f_dfu->strings);
|
|
}
|
|
|
|
if (f_dfu->function) {
|
|
i = alt_num;
|
|
while (i) {
|
|
free(f_dfu->function[--i]);
|
|
f_dfu->function[i] = NULL;
|
|
}
|
|
free(f_dfu->function);
|
|
}
|
|
|
|
free(f_dfu);
|
|
}
|
|
|
|
static int dfu_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
|
|
{
|
|
struct f_dfu *f_dfu = func_to_dfu(f);
|
|
|
|
debug("%s: intf:%d alt:%d\n", __func__, intf, alt);
|
|
|
|
f_dfu->altsetting = alt;
|
|
f_dfu->dfu_state = DFU_STATE_dfuIDLE;
|
|
f_dfu->dfu_status = DFU_STATUS_OK;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* TODO: is this really what we need here? */
|
|
static void dfu_disable(struct usb_function *f)
|
|
{
|
|
struct f_dfu *f_dfu = func_to_dfu(f);
|
|
if (f_dfu->config == 0)
|
|
return;
|
|
|
|
debug("%s: reset config\n", __func__);
|
|
|
|
f_dfu->config = 0;
|
|
}
|
|
|
|
static int dfu_bind_config(struct usb_configuration *c)
|
|
{
|
|
struct f_dfu *f_dfu;
|
|
int status;
|
|
|
|
f_dfu = calloc(sizeof(*f_dfu), 1);
|
|
if (!f_dfu)
|
|
return -ENOMEM;
|
|
f_dfu->usb_function.name = "dfu";
|
|
f_dfu->usb_function.hs_descriptors = dfu_runtime_descs;
|
|
f_dfu->usb_function.descriptors = dfu_runtime_descs;
|
|
f_dfu->usb_function.bind = dfu_bind;
|
|
f_dfu->usb_function.unbind = dfu_unbind;
|
|
f_dfu->usb_function.set_alt = dfu_set_alt;
|
|
f_dfu->usb_function.disable = dfu_disable;
|
|
f_dfu->usb_function.strings = dfu_generic_strings;
|
|
f_dfu->usb_function.setup = dfu_handle;
|
|
f_dfu->poll_timeout = DFU_DEFAULT_POLL_TIMEOUT;
|
|
|
|
status = usb_add_function(c, &f_dfu->usb_function);
|
|
if (status)
|
|
free(f_dfu);
|
|
|
|
return status;
|
|
}
|
|
|
|
int dfu_add(struct usb_configuration *c)
|
|
{
|
|
int id;
|
|
|
|
id = usb_string_id(c->cdev);
|
|
if (id < 0)
|
|
return id;
|
|
strings_dfu_generic[0].id = id;
|
|
dfu_intf_runtime.iInterface = id;
|
|
|
|
debug("%s: cdev: 0x%p gadget:0x%p gadget->ep0: 0x%p\n", __func__,
|
|
c->cdev, c->cdev->gadget, c->cdev->gadget->ep0);
|
|
|
|
return dfu_bind_config(c);
|
|
}
|
|
|
|
DECLARE_GADGET_BIND_CALLBACK(usb_dnl_dfu, dfu_add);
|
|
|