157 lines
3.8 KiB
C
157 lines
3.8 KiB
C
/*
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* Copyright (c) 2022 ~ 2026, sakumisu
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "usbd_core.h"
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#include "usbd_dfu.h"
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#define USBD_VID 0x0483
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#define USBD_PID 0xdf11
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#define USBD_MAX_POWER 100
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#define USBD_LANGID_STRING 1033
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#define USB_CONFIG_SIZE (9 + DFU_DESCRIPTOR_LEN)
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#define FLASH_DESC_STR "@Internal Flash /0x08000000/16*128Kg"
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static const uint8_t device_descriptor[] = {
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USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0x00, 0x00, 0x00, USBD_VID, USBD_PID, 0x0200, 0x01)
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};
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static const uint8_t config_descriptor[] = {
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USB_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x01, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
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DFU_DESCRIPTOR_INIT(4)
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};
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static const uint8_t device_quality_descriptor[] = {
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///////////////////////////////////////
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/// device qualifier descriptor
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///////////////////////////////////////
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0x0a,
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USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
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0x00,
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0x02,
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0x00,
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0x00,
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0x00,
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0x40,
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0x00,
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0x00,
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};
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static const char *string_descriptors[] = {
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(const char[]){ 0x09, 0x04 }, /* Langid */
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"CherryUSB", /* Manufacturer */
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"CherryUSB DFU DEMO", /* Product */
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"2022123456", /* Serial Number */
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FLASH_DESC_STR
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};
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static const uint8_t *device_descriptor_callback(uint8_t speed)
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{
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return device_descriptor;
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}
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static const uint8_t *config_descriptor_callback(uint8_t speed)
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{
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return config_descriptor;
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}
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static const uint8_t *device_quality_descriptor_callback(uint8_t speed)
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{
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return device_quality_descriptor;
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}
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static const char *string_descriptor_callback(uint8_t speed, uint8_t index)
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{
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if (index >= (sizeof(string_descriptors) / sizeof(char *))) {
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return NULL;
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}
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return string_descriptors[index];
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}
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const struct usb_descriptor dfu_descriptor = {
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.device_descriptor_callback = device_descriptor_callback,
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.config_descriptor_callback = config_descriptor_callback,
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.device_quality_descriptor_callback = device_quality_descriptor_callback,
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.string_descriptor_callback = string_descriptor_callback
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};
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static void usbd_event_handler(uint8_t busid, uint8_t event)
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{
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switch (event) {
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case USBD_EVENT_RESET:
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break;
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case USBD_EVENT_CONNECTED:
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break;
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case USBD_EVENT_DISCONNECTED:
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break;
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case USBD_EVENT_RESUME:
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break;
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case USBD_EVENT_SUSPEND:
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break;
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case USBD_EVENT_CONFIGURED:
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break;
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case USBD_EVENT_SET_REMOTE_WAKEUP:
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break;
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case USBD_EVENT_CLR_REMOTE_WAKEUP:
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break;
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default:
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break;
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}
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}
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struct usbd_interface intf0;
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void dfu_init(uint8_t busid, uintptr_t reg_base)
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{
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usbd_desc_register(busid, &dfu_descriptor);
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usbd_add_interface(busid, usbd_dfu_init_intf(&intf0));
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usbd_initialize(busid, reg_base, usbd_event_handler);
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}
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volatile uint32_t flash_start_address;
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void usbd_dfu_begin_load(void)
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{
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flash_start_address = 0x08000000;
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}
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void usbd_dfu_end_load(void)
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{
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}
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void usbd_dfu_reset(void)
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{
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//NVIC_SystemReset();
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}
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int usbd_dfu_write(uint16_t value, const uint8_t *data, uint16_t length)
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{
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//usb_hexdump(data, length);
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// patch for stm32 special command
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#if 1
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if (value == 0) {
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if (data[0] == DFU_SPECIAL_CMD_SET_ADDRESS_POINTER) {
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memcpy((uint8_t *)&flash_start_address, data, 4);
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} else if (data[0] == DFU_SPECIAL_CMD_ERASE) {
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memcpy((uint8_t *)&flash_start_address, data, 4);
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}
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} else if (value > 1) {
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uint32_t addr = (value - 2) * CONFIG_USBDEV_REQUEST_BUFFER_LEN + flash_start_address;
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}
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#else
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flash_start_address += length;
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#endif
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return 0;
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}
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int usbd_dfu_read(uint16_t value, const uint8_t *data, uint16_t length, uint16_t *actual_length)
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{
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return 0;
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} |