220 lines
6.4 KiB
C
220 lines
6.4 KiB
C
/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2019 Ha Thach (tinyusb.org)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*/
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/*
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* After device is enumerated in dfu mode run the following commands
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*
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* To transfer firmware from host to device (best to test with text file)
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*
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* $ dfu-util -d cafe -a 0 -D [filename]
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* $ dfu-util -d cafe -a 1 -D [filename]
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*
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* To transfer firmware from device to host:
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*
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* $ dfu-util -d cafe -a 0 -U [filename]
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* $ dfu-util -d cafe -a 1 -U [filename]
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*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "bsp/board.h"
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#include "tusb.h"
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//--------------------------------------------------------------------+
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// MACRO CONSTANT TYPEDEF PROTYPES
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//--------------------------------------------------------------------+
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const char* upload_image[2]=
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{
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"Hello world from TinyUSB DFU! - Partition 0",
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"Hello world from TinyUSB DFU! - Partition 1"
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};
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/* Blink pattern
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* - 250 ms : device not mounted
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* - 1000 ms : device mounted
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* - 2500 ms : device is suspended
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*/
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enum {
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BLINK_NOT_MOUNTED = 250,
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BLINK_MOUNTED = 1000,
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BLINK_SUSPENDED = 2500,
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};
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static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
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void led_blinking_task(void);
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/*------------- MAIN -------------*/
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int main(void)
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{
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board_init();
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tusb_init();
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while (1)
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{
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tud_task(); // tinyusb device task
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led_blinking_task();
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}
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return 0;
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}
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//--------------------------------------------------------------------+
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// Device callbacks
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//--------------------------------------------------------------------+
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// Invoked when device is mounted
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void tud_mount_cb(void)
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{
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blink_interval_ms = BLINK_MOUNTED;
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}
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// Invoked when device is unmounted
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void tud_umount_cb(void)
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{
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blink_interval_ms = BLINK_NOT_MOUNTED;
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}
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// Invoked when usb bus is suspended
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// remote_wakeup_en : if host allow us to perform remote wakeup
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// Within 7ms, device must draw an average of current less than 2.5 mA from bus
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void tud_suspend_cb(bool remote_wakeup_en)
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{
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(void) remote_wakeup_en;
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blink_interval_ms = BLINK_SUSPENDED;
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}
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// Invoked when usb bus is resumed
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void tud_resume_cb(void)
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{
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blink_interval_ms = BLINK_MOUNTED;
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}
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//--------------------------------------------------------------------+
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// DFU callbacks
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// Note: alt is used as the partition number, in order to support multiple partitions like FLASH, EEPROM, etc.
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//--------------------------------------------------------------------+
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// Invoked right before tud_dfu_download_cb() (state=DFU_DNBUSY) or tud_dfu_manifest_cb() (state=DFU_MANIFEST)
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// Application return timeout in milliseconds (bwPollTimeout) for the next download/manifest operation.
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// During this period, USB host won't try to communicate with us.
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uint32_t tud_dfu_get_timeout_cb(uint8_t alt, uint8_t state)
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{
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if ( state == DFU_DNBUSY )
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{
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// For this example
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// - Atl0 Flash is fast : 1 ms
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// - Alt1 EEPROM is slow: 100 ms
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return (alt == 0) ? 1 : 100;
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}
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else if (state == DFU_MANIFEST)
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{
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// since we don't buffer entire image and do any flashing in manifest stage
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return 0;
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}
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return 0;
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}
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// Invoked when received DFU_DNLOAD (wLength>0) following by DFU_GETSTATUS (state=DFU_DNBUSY) requests
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// This callback could be returned before flashing op is complete (async).
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// Once finished flashing, application must call tud_dfu_finish_flashing()
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void tud_dfu_download_cb(uint8_t alt, uint16_t block_num, uint8_t const* data, uint16_t length)
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{
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(void) alt;
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(void) block_num;
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//printf("\r\nReceived Alt %u BlockNum %u of length %u\r\n", alt, wBlockNum, length);
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for(uint16_t i=0; i<length; i++)
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{
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printf("%c", data[i]);
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}
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// flashing op for download complete without error
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tud_dfu_finish_flashing(DFU_STATUS_OK);
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}
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// Invoked when download process is complete, received DFU_DNLOAD (wLength=0) following by DFU_GETSTATUS (state=Manifest)
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// Application can do checksum, or actual flashing if buffered entire image previously.
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// Once finished flashing, application must call tud_dfu_finish_flashing()
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void tud_dfu_manifest_cb(uint8_t alt)
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{
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(void) alt;
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printf("Download completed, enter manifestation\r\n");
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// flashing op for manifest is complete without error
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// Application can perform checksum, should it fail, use appropriate status such as errVERIFY.
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tud_dfu_finish_flashing(DFU_STATUS_OK);
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}
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// Invoked when received DFU_UPLOAD request
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// Application must populate data with up to length bytes and
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// Return the number of written bytes
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uint16_t tud_dfu_upload_cb(uint8_t alt, uint16_t block_num, uint8_t* data, uint16_t length)
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{
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(void) block_num;
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(void) length;
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uint16_t const xfer_len = (uint16_t) strlen(upload_image[alt]);
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memcpy(data, upload_image[alt], xfer_len);
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return xfer_len;
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}
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// Invoked when the Host has terminated a download or upload transfer
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void tud_dfu_abort_cb(uint8_t alt)
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{
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(void) alt;
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printf("Host aborted transfer\r\n");
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}
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// Invoked when a DFU_DETACH request is received
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void tud_dfu_detach_cb(void)
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{
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printf("Host detach, we should probably reboot\r\n");
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}
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//--------------------------------------------------------------------+
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// BLINKING TASK + Indicator pulse
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//--------------------------------------------------------------------+
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void led_blinking_task(void)
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{
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static uint32_t start_ms = 0;
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static bool led_state = false;
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// Blink every interval ms
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if ( board_millis() - start_ms < blink_interval_ms) return; // not enough time
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start_ms += blink_interval_ms;
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board_led_write(led_state);
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led_state = 1 - led_state; // toggle
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}
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