tf-a/tf-a-stm32mp-2.2.r1/lib/usb/usb_st_dfu.c

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2024-01-10 05:21:13 +00:00
/*
* Copyright (c) 2015-2019, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <string.h>
#include <platform_def.h>
#include <common/debug.h>
#include <lib/usb/usb_st_dfu.h>
static uintptr_t usbd_dfu_download_address;
static uint32_t usbd_dfu_phase_id;
static uint32_t usbd_dfu_operation_complete;
static uint32_t usbd_dfu_current_req;
static uint32_t usbd_detach_req;
/*
* @brief USBD_DFU_Init
* Initialize the DFU interface
* @param pdev: device instance
* @param cfgidx: Configuration index
* @retval status
*/
static uint8_t usb_dfu_init(usb_handle_t *pdev, uint8_t cfgidx)
{
/* Nothing to do in this stage */
return USBD_OK;
}
/**
* @brief USBD_DFU_Init
* De-Initialize the DFU layer
* @param pdev: device instance
* @param cfgidx: Configuration index
* @retval status
*/
static uint8_t usb_dfu_de_init(usb_handle_t *pdev, uint8_t cfgidx)
{
/* Nothing to do in this stage */
return USBD_OK;
}
/*
* @brief USBD_DFU_DataIn
* handle data IN Stage
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
static uint8_t usb_dfu_data_in(usb_handle_t *pdev, uint8_t epnum)
{
(void)pdev;
(void)epnum;
return USBD_OK;
}
/*
* @brief DFU_Leave
* Handles the sub-protocol DFU leave DFU mode request (leaves DFU mode
* and resets device to jump to user loaded code).
* @param pdev: device instance
* @retval None
*/
static void usb_dfu_leave(usb_handle_t *pdev)
{
usb_dfu_handle_t *hdfu = (usb_dfu_handle_t *)pdev->class_data;
hdfu->manif_state = DFU_MANIFEST_COMPLETE;
if (DFU_BM_ATTRIBUTE & 0x04) {
hdfu->dev_state = DFU_STATE_MANIFEST_SYNC;
hdfu->dev_status[1] = 0;
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0;
hdfu->dev_status[4] = hdfu->dev_state;
} else {
hdfu->dev_state = DFU_STATE_MANIFEST_WAIT_RESET;
hdfu->dev_status[1] = 0;
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0;
hdfu->dev_status[4] = hdfu->dev_state;
/* Disconnect the USB device */
usb_core_stop(pdev);
}
}
/*
* @brief USBD_DFU_EP0_RxReady
* handle EP0 Rx Ready event
* @param pdev: device instance
* @retval status
*/
static uint8_t usb_dfu_ep0_rx_ready(usb_handle_t *pdev)
{
(void)pdev;
return USBD_OK;
}
/*
* @brief USBD_DFU_EP0_TxReady
* handle EP0 TRx Ready event
* @param pdev: device instance
* @retval status
*/
static uint8_t usb_dfu_ep0_tx_ready(usb_handle_t *pdev)
{
usb_dfu_handle_t *hdfu = (usb_dfu_handle_t *)pdev->class_data;
uint16_t len, dfu_version = 0;
uint8_t *serial = pdev->desc->get_dfu_desc(&len);
dfu_version = serial[len - 1] << 8 | serial[len - 2];
if (hdfu->dev_state == DFU_STATE_DNLOAD_BUSY) {
if (dfu_version == 0x011a) {
/* Decode the Special Command*/
if (hdfu->wblock_num == 0) {
if (hdfu->buffer[0] ==
DFU_CMD_SETADDRESSPOINTER &&
hdfu->wlength == 5) {
hdfu->data_ptr = hdfu->buffer[1];
hdfu->data_ptr +=
hdfu->buffer[2] << 8;
hdfu->data_ptr +=
hdfu->buffer[3] << 16;
hdfu->data_ptr +=
hdfu->buffer[4] << 24;
} else if (hdfu->buffer[0] ==
DFU_CMD_ERASE &&
hdfu->wlength == 5) {
hdfu->data_ptr = hdfu->buffer[1];
hdfu->data_ptr +=
hdfu->buffer[2] << 8;
hdfu->data_ptr +=
hdfu->buffer[3] << 16;
hdfu->data_ptr +=
hdfu->buffer[4] << 24;
} else {
/* Reset the global length and block number */
hdfu->wlength = 0;
hdfu->wblock_num = 0;
/* Call the error management function
* (command will be nacked)
*/
usb_core_ctl_error(pdev);
}
}
}
if ((hdfu->wblock_num > 1 && dfu_version == 0x011a) ||
dfu_version != 0x011a) {
/* Perform the write operation */
if (((usb_dfu_media_t *)
pdev->user_data)->write_done((uint32_t *)
hdfu->data_ptr,
hdfu->wlength)
!= USBD_OK)
return USBD_FAIL;
}
/* Reset the global length and block number */
hdfu->wlength = 0;
hdfu->wblock_num = 0;
/* Update the state machine */
hdfu->dev_state = DFU_STATE_DNLOAD_SYNC;
hdfu->dev_status[1] = 0;
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0;
hdfu->dev_status[4] = hdfu->dev_state;
return USBD_OK;
} else if (hdfu->dev_state == DFU_STATE_MANIFEST) {
/* Manifestation in progress*/
/* Start leaving DFU mode */
usb_dfu_leave(pdev);
}
return USBD_OK;
}
/*
* @brief USBD_DFU_SOF
* handle SOF event
* @param pdev: device instance
* @retval status
*/
static uint8_t usb_dfu_sof(usb_handle_t *pdev)
{
(void)pdev;
return USBD_OK;
}
/*
* @brief USBD_DFU_IsoINIncomplete
* handle data ISO IN Incomplete event
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
static uint8_t usb_dfu_iso_in_incomplete(usb_handle_t *pdev, uint8_t epnum)
{
(void)pdev;
(void)epnum;
return USBD_OK;
}
/*
* @brief USBD_DFU_IsoOutIncomplete
* handle data ISO OUT Incomplete event
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
static uint8_t usb_dfu_iso_out_incomplete(usb_handle_t *pdev, uint8_t epnum)
{
(void)pdev;
(void)epnum;
return USBD_OK;
}
/*
* @brief USBD_DFU_DataOut
* handle data OUT Stage
* @param pdev: device instance
* @param epnum: endpoint index
* @retval status
*/
static uint8_t usb_dfu_data_out(usb_handle_t *pdev, uint8_t epnum)
{
(void)pdev;
(void)epnum;
return USBD_OK;
}
/*
* @brief DFU_Detach
* Handles the DFU DETACH request.
* @param pdev: device instance
* @param req: pointer to the request structure.
* @retval None.
*/
static void usb_dfu_detach(usb_handle_t *pdev, usb_setup_req_t *req)
{
usb_dfu_handle_t *hdfu = (usb_dfu_handle_t *)pdev->class_data;
INFO("Receive Detach\n");
if (hdfu->dev_state == DFU_STATE_IDLE ||
hdfu->dev_state == DFU_STATE_DNLOAD_SYNC ||
hdfu->dev_state == DFU_STATE_DNLOAD_IDLE ||
hdfu->dev_state == DFU_STATE_MANIFEST_SYNC ||
hdfu->dev_state == DFU_STATE_UPLOAD_IDLE) {
/* Update the state machine */
hdfu->dev_state = DFU_STATE_IDLE;
hdfu->dev_status[0] = DFU_ERROR_NONE;
hdfu->dev_status[1] = 0;
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0; /*bwPollTimeout=0ms*/
hdfu->dev_status[4] = hdfu->dev_state;
hdfu->dev_status[5] = 0; /*iString*/
hdfu->wblock_num = 0;
}
hdfu->wlength = 0;
usbd_detach_req = 0;
}
/*
* @brief DFU_Download
* Handles the DFU DNLOAD request.
* @param pdev: device instance
* @param req: pointer to the request structure
* @retval None
*/
static void usb_dfu_download(usb_handle_t *pdev, usb_setup_req_t *req)
{
usb_dfu_handle_t *hdfu = (usb_dfu_handle_t *)pdev->class_data;
/* Data setup request */
if (req->length > 0) {
if ((hdfu->dev_state == DFU_STATE_IDLE) ||
(hdfu->dev_state == DFU_STATE_DNLOAD_IDLE)) {
/* Update the global length and block number */
hdfu->wblock_num = req->value;
hdfu->wlength = req->length;
/* Update the data address */
hdfu->data_ptr = usbd_dfu_download_address;
/* Update the state machine */
hdfu->dev_state = DFU_STATE_DNLOAD_SYNC;
hdfu->dev_status[4] = hdfu->dev_state;
/* Prepare the reception of the buffer over EP0 */
/* Set EP0 State */
pdev->ep0_state = USBD_EP0_DATA_OUT;
pdev->ep_out[0].total_length = hdfu->wlength;
pdev->ep_out[0].rem_length = hdfu->wlength;
/* Start the transfer */
usb_core_receive(pdev,
0,
(uint8_t *)usbd_dfu_download_address,
hdfu->wlength);
usbd_dfu_download_address += hdfu->wlength;
} else {
/* Unsupported state */
/* Call the error management function
* (command will be nacked)
*/
usb_core_ctl_error(pdev);
}
} else {
/* End of DNLOAD operation*/
if (hdfu->dev_state == DFU_STATE_DNLOAD_IDLE ||
hdfu->dev_state == DFU_STATE_IDLE) {
hdfu->manif_state = DFU_MANIFEST_IN_PROGRESS;
hdfu->dev_state = DFU_STATE_MANIFEST_SYNC;
hdfu->dev_status[1] = 0;
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0;
hdfu->dev_status[4] = hdfu->dev_state;
} else {
/* Call the error management function
* (command will be nacked)
*/
usb_core_ctl_error(pdev);
}
}
}
/*
* @brief DFU_Upload
* Handles the DFU UPLOAD request.
* @param pdev: instance
* @param req: pointer to the request structure
* @retval status
*/
static void usb_dfu_upload(usb_handle_t *pdev, usb_setup_req_t *req)
{
usb_dfu_handle_t *hdfu = (usb_dfu_handle_t *)pdev->class_data;
/* Data setup request */
if (req->length > 0) {
if ((hdfu->dev_state == DFU_STATE_IDLE) ||
(hdfu->dev_state == DFU_STATE_UPLOAD_IDLE)) {
/* Update the global length and block number */
hdfu->wblock_num = req->value;
hdfu->wlength = req->length;
/* DFU GetPhase Command */
if (hdfu->wblock_num == 0) {
/* Update the state machine */
hdfu->dev_state = (hdfu->wlength > 3) ?
DFU_STATE_IDLE :
DFU_STATE_UPLOAD_IDLE;
hdfu->dev_status[1] = 0;
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0;
hdfu->dev_status[4] = hdfu->dev_state;
INFO("UPLOAD :\n");
INFO("\t\tPhase ID : %i\n", usbd_dfu_phase_id);
INFO("\t\taddress 0x%lx\n",
usbd_dfu_download_address);
hdfu->buffer[0] = usbd_dfu_phase_id;
hdfu->buffer[1] = (uint8_t)
(usbd_dfu_download_address);
hdfu->buffer[2] = (uint8_t)
(usbd_dfu_download_address >>
8);
hdfu->buffer[3] = (uint8_t)
(usbd_dfu_download_address >>
16);
hdfu->buffer[4] = (uint8_t)
(usbd_dfu_download_address >>
24);
hdfu->buffer[5] = 0x00;
hdfu->buffer[6] = 0x00;
hdfu->buffer[7] = 0x00;
hdfu->buffer[8] = 0x00;
if ((usbd_dfu_download_address ==
UNDEFINE_DOWN_ADDR) &&
(usbd_detach_req)) {
INFO("Send detach request\n");
hdfu->buffer[9] = 0x01;
pdev->ep_in[0].total_length = 10;
pdev->ep_in[0].rem_length = 10;
} else {
pdev->ep_in[0].total_length = 9;
pdev->ep_in[0].rem_length = 9;
}
/* Send the status data over EP0 */
pdev->ep0_state = USBD_EP0_DATA_IN;
/* Start the transfer */
usb_core_transmit(pdev, 0x00,
(uint8_t *)&hdfu->buffer[0],
pdev->ep_in[0].total_length);
} else {
/* unsupported hdfu->wblock_num */
ERROR("UPLOAD : Unsupported block : %i\n",
hdfu->wblock_num);
hdfu->dev_state = DFU_ERROR_STALLEDPKT;
hdfu->dev_status[1] = 0;
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0;
hdfu->dev_status[4] = hdfu->dev_state;
/* Call the error management function
* (command will be nacked
*/
usb_core_ctl_error(pdev);
}
} else {
/* Unsupported state */
ERROR("UPLOAD : Unsupported State\n");
hdfu->wlength = 0;
hdfu->wblock_num = 0;
/* Call the error management function
* (command will be nacked
*/
usb_core_ctl_error(pdev);
}
} else {
/* No Data setup request */
INFO("USB : DFU : Nothing to do\n");
hdfu->dev_state = DFU_STATE_IDLE;
hdfu->dev_status[1] = 0;
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0;
hdfu->dev_status[4] = hdfu->dev_state;
}
}
/*
* @brief DFU_GetStatus
* Handles the DFU GETSTATUS request.
* @param pdev: instance
* @retval status
*/
static void usb_dfu_get_status(usb_handle_t *pdev)
{
usb_dfu_handle_t *hdfu = (usb_dfu_handle_t *)pdev->class_data;
uint16_t status;
uint8_t dfu_bm_attribute = DFU_BM_ATTRIBUTE;
switch (hdfu->dev_state) {
case DFU_STATE_DNLOAD_SYNC:
status = ((usb_dfu_media_t *)pdev->user_data)->get_status();
switch (status) {
case DFU_MEDIA_STATE_WRITTEN:
/* SRAM block writing is finished, checks if checksum
* error has been detected
*/
hdfu->dev_state = DFU_STATE_DNLOAD_IDLE;
break;
case DFU_MEDIA_STATE_ERROR:
hdfu->dev_state = DFU_STATE_ERROR;
break;
case DFU_MEDIA_STATE_READY:
default:
/* SRAM is ready to be written */
hdfu->dev_state = DFU_STATE_DNLOAD_BUSY;
break;
}
hdfu->dev_status[1] = 0;
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0;
hdfu->dev_status[4] = hdfu->dev_state;
break;
case DFU_STATE_MANIFEST_SYNC:
if (hdfu->manif_state == DFU_MANIFEST_IN_PROGRESS) {
hdfu->dev_state = DFU_STATE_MANIFEST;
hdfu->dev_status[1] = 1;/*bwPollTimeout = 1ms*/
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0;
hdfu->dev_status[4] = hdfu->dev_state;
} else if ((hdfu->manif_state == DFU_MANIFEST_COMPLETE) &&
(dfu_bm_attribute & 0x04)) {
INFO("USB : DFU : end of download partition : %i\n",
hdfu->alt_setting);
hdfu->dev_state = DFU_STATE_IDLE;
usbd_dfu_operation_complete = 1;
hdfu->dev_status[1] = 0;
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0;
hdfu->dev_status[4] = hdfu->dev_state;
}
break;
default:
break;
}
/* Send the status data over EP0 */
pdev->ep0_state = USBD_EP0_DATA_IN;
pdev->ep_in[0].total_length = 6;
pdev->ep_in[0].rem_length = 6;
/* Start the transfer */
usb_core_transmit(pdev, 0x00, (uint8_t *)&hdfu->dev_status[0], 6);
}
/*
* @brief DFU_ClearStatus
* Handles the DFU CLRSTATUS request.
* @param pdev: device instance
* @retval status
*/
static void usb_dfu_clear_status(usb_handle_t *pdev)
{
usb_dfu_handle_t *hdfu = (usb_dfu_handle_t *)pdev->class_data;
if (hdfu->dev_state == DFU_STATE_ERROR) {
hdfu->dev_state = DFU_STATE_IDLE;
hdfu->dev_status[0] = DFU_ERROR_NONE;/*bStatus*/
hdfu->dev_status[1] = 0;
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0; /*bwPollTimeout=0ms*/
hdfu->dev_status[4] = hdfu->dev_state;/*bState*/
hdfu->dev_status[5] = 0;/*iString*/
} else {
/*State Error*/
hdfu->dev_state = DFU_STATE_ERROR;
hdfu->dev_status[0] = DFU_ERROR_UNKNOWN;/*bStatus*/
hdfu->dev_status[1] = 0;
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0; /*bwPollTimeout=0ms*/
hdfu->dev_status[4] = hdfu->dev_state;/*bState*/
hdfu->dev_status[5] = 0;/*iString*/
}
}
/*
* @brief DFU_GetState
* Handles the DFU GETSTATE request.
* @param pdev: device instance
* @retval None
*/
static void usb_dfu_get_state(usb_handle_t *pdev)
{
usb_dfu_handle_t *hdfu = (usb_dfu_handle_t *)pdev->class_data;
/* Return the current state of the DFU interface */
/* Send the status data over EP0 */
pdev->ep0_state = USBD_EP0_DATA_IN;
pdev->ep_in[0].total_length = 1;
pdev->ep_in[0].rem_length = 1;
/* Start the transfer */
usb_core_transmit(pdev, 0x00, &hdfu->dev_state, 1);
}
/*
* @brief DFU_Abort
* Handles the DFU ABORT request.
* @param pdev: device instance
* @retval None
*/
static void usb_dfu_abort(usb_handle_t *pdev)
{
usb_dfu_handle_t *hdfu = (usb_dfu_handle_t *)pdev->class_data;
if (hdfu->dev_state == DFU_STATE_IDLE ||
hdfu->dev_state == DFU_STATE_DNLOAD_SYNC ||
hdfu->dev_state == DFU_STATE_DNLOAD_IDLE ||
hdfu->dev_state == DFU_STATE_MANIFEST_SYNC ||
hdfu->dev_state == DFU_STATE_UPLOAD_IDLE) {
hdfu->dev_state = DFU_STATE_IDLE;
hdfu->dev_status[0] = DFU_ERROR_NONE;
hdfu->dev_status[1] = 0;
hdfu->dev_status[2] = 0;
hdfu->dev_status[3] = 0; /*bwPollTimeout=0ms*/
hdfu->dev_status[4] = hdfu->dev_state;
hdfu->dev_status[5] = 0; /*iString*/
hdfu->wblock_num = 0;
hdfu->wlength = 0;
}
}
/*
* @brief USBD_DFU_Setup
* Handle the DFU specific requests
* @param pdev: instance
* @param req: usb requests
* @retval status
*/
static uint8_t usb_dfu_setup(usb_handle_t *pdev, usb_setup_req_t *req)
{
uint8_t *pbuf = NULL;
uint16_t len = 0;
uint8_t ret = USBD_OK;
usb_dfu_handle_t *hdfu = (usb_dfu_handle_t *)pdev->class_data;
VERBOSE("alt_setting %i, bmRequest : 0x%x, brequest : 0x%x\n",
hdfu->alt_setting, req->bm_request & USB_REQ_TYPE_MASK,
req->b_request);
switch (req->bm_request & USB_REQ_TYPE_MASK) {
case USB_REQ_TYPE_CLASS:
usbd_dfu_current_req = req->b_request;
if (hdfu->alt_setting == usbd_dfu_phase_id) {
switch (req->b_request) {
case DFU_DNLOAD:
usb_dfu_download(pdev, req);
break;
case DFU_UPLOAD:
usb_dfu_upload(pdev, req);
break;
case DFU_GETSTATUS:
usb_dfu_get_status(pdev);
break;
case DFU_CLRSTATUS:
usb_dfu_clear_status(pdev);
break;
case DFU_GETSTATE:
usb_dfu_get_state(pdev);
break;
case DFU_ABORT:
usb_dfu_abort(pdev);
break;
case DFU_DETACH:
usb_dfu_detach(pdev, req);
break;
default:
ERROR("phase ID :%i\n", usbd_dfu_phase_id);
usb_core_ctl_error(pdev);
ret = USBD_FAIL;
break;
}
} else if (hdfu->alt_setting == DFU_GET_PHASE) {
switch (req->b_request) {
case DFU_UPLOAD:
usb_dfu_upload(pdev, req);
break;
case DFU_GETSTATUS:
INFO("GETSTATUS :\n");
usb_dfu_get_status(pdev);
switch (hdfu->dev_state) {
case APP_STATE_IDLE:
INFO("\t\tAPP_STATE_IDLE\n");
break;
case APP_STATE_DETACH:
INFO("\t\tAPP_STATE_DETACH\n");
break;
case DFU_STATE_IDLE:
INFO("\t\tDFU_STATE_IDLE\n");
break;
case DFU_STATE_DNLOAD_SYNC:
INFO("\t\tDFU_STATE_DNLOAD_SYNC\n");
break;
case DFU_STATE_DNLOAD_BUSY:
INFO("\t\tDFU_STATE_DNLOAD_BUSY\n");
break;
case DFU_STATE_DNLOAD_IDLE:
INFO("\t\tDFU_STATE_DNLOAD_IDLE\n");
break;
case DFU_STATE_MANIFEST_SYNC:
INFO("\t\tDFU_STATE_MANIFEST_SYNC\n");
break;
case DFU_STATE_MANIFEST:
INFO("\t\tDFU_STATE_MANIFEST\n");
break;
case DFU_STATE_MANIFEST_WAIT_RESET:
INFO("\t\tDFU_STATE_MANIFEST_WAIT_RESET\n");
break;
case DFU_STATE_UPLOAD_IDLE:
INFO("\t\tDFU_STATE_UPLOAD_IDLE\n");
break;
case DFU_STATE_ERROR:
ERROR("\t\tDFU_STATE_ERROR\n");
break;
default:
break;
}
break;
case DFU_CLRSTATUS:
INFO("Receive DFU clear status\n");
usb_dfu_clear_status(pdev);
break;
case DFU_GETSTATE:
INFO("GETSTATE :\n");
usb_dfu_get_state(pdev);
switch (hdfu->dev_state) {
case APP_STATE_IDLE:
INFO("\t\tAPP_STATE_IDLE\n");
break;
case APP_STATE_DETACH:
INFO("\t\tAPP_STATE_DETACH\n");
break;
case DFU_STATE_IDLE:
INFO("\t\tDFU_STATE_IDLE\n");
break;
case DFU_STATE_DNLOAD_SYNC:
INFO("\t\tDFU_STATE_DNLOAD_SYNC\n");
break;
case DFU_STATE_DNLOAD_BUSY:
INFO("\t\tDFU_STATE_DNLOAD_BUSY\n");
break;
case DFU_STATE_DNLOAD_IDLE:
INFO("\t\tDFU_STATE_DNLOAD_IDLE\n");
break;
case DFU_STATE_MANIFEST_SYNC:
INFO("\t\tDFU_STATE_MANIFEST_SYNC\n");
break;
case DFU_STATE_MANIFEST:
INFO("\t\tDFU_STATE_MANIFEST\n");
break;
case DFU_STATE_MANIFEST_WAIT_RESET:
INFO("\t\tDFU_STATE_MANIFEST_WAIT_RESET\n");
break;
case DFU_STATE_UPLOAD_IDLE:
INFO("\t\tDFU_STATE_UPLOAD_IDLE\n");
break;
case DFU_STATE_ERROR:
ERROR("\t\tDFU_STATE_ERROR\n");
break;
default:
break;
}
break;
case DFU_ABORT:
INFO("Receive DFU abort\n");
usb_dfu_abort(pdev);
break;
case DFU_DETACH:
usb_dfu_detach(pdev, req);
break;
default:
ERROR("phase ID :%i\n", DFU_GET_PHASE);
usb_core_ctl_error(pdev);
ret = USBD_FAIL;
break;
}
} else {
ERROR("Unknown alternate : %i\n", hdfu->alt_setting);
ret = USBD_FAIL;
}
break;
case USB_REQ_TYPE_STANDARD:
switch (req->b_request) {
case USB_REQ_GET_DESCRIPTOR:
if ((req->value >> 8) == DFU_DESCRIPTOR_TYPE) {
pbuf = pdev->desc->get_dfu_desc(&len);
len = MIN(len, req->length);
}
pdev->ep0_state = USBD_EP0_DATA_IN;
pdev->ep_in[0].total_length = len;
pdev->ep_in[0].rem_length = len;
/* Start the transfer */
usb_core_transmit(pdev, 0x00, pbuf, len);
break;
case USB_REQ_GET_INTERFACE:
pdev->ep0_state = USBD_EP0_DATA_IN;
pdev->ep_in[0].total_length = 1;
pdev->ep_in[0].rem_length = 1;
/* Start the transfer */
usb_core_transmit(pdev, 0x00,
(uint8_t *)&hdfu->alt_setting, 1);
break;
case USB_REQ_SET_INTERFACE:
hdfu->alt_setting = (uint8_t)(req->value);
break;
default:
usb_core_ctl_error(pdev);
ret = USBD_FAIL;
break;
}
default:
break;
}
return ret;
}
static const usb_class_t USBD_DFU_initvalue = {
usb_dfu_init,
usb_dfu_de_init,
usb_dfu_setup,
usb_dfu_ep0_tx_ready,
usb_dfu_ep0_rx_ready,
usb_dfu_data_in,
usb_dfu_data_out,
usb_dfu_sof,
usb_dfu_iso_in_incomplete,
usb_dfu_iso_out_incomplete,
0
};
void usb_dfu_register_callback(usb_handle_t *pdev)
{
pdev->class = (usb_class_t *)&USBD_DFU_initvalue;
}
void usb_dfu_set_phase_id(uint32_t phase_id)
{
usbd_dfu_phase_id = phase_id;
usbd_dfu_operation_complete = 0;
}
void usb_dfu_set_download_addr(uintptr_t addr)
{
usbd_dfu_download_address = addr;
}
uint32_t usb_dfu_download_is_completed(void)
{
return usbd_dfu_operation_complete;
}
uint32_t usb_dfu_get_current_req(void)
{
return usbd_dfu_current_req;
}
uint32_t usb_dfu_detach_req(void)
{
return usbd_detach_req;
}
void usb_dfu_request_detach(void)
{
usbd_detach_req = 1;
}