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114 lines
3.4 KiB
C
114 lines
3.4 KiB
C
//
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// Copyright 2024 Wenting Zhang <zephray@outlook.com>
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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 THE
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// SOFTWARE.
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//
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#include <stdio.h>
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#include "pico/stdlib.h"
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#include "fpga.h"
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#include "caster.h"
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#include "tusb.h"
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#include "usb_descriptors.h"
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void usbapp_init(void) {
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tusb_init();
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}
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// Device callbacks
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void tud_mount_cb(void) {
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}
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void tud_umount_cb(void) {
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}
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void tud_suspend_cb(bool remote_wakeup_en) {
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// TODO: Force Suspend
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}
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void tud_resume_cb(void) {
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}
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// Invoked when received GET_REPORT control request
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// Application must fill buffer report's content and return its length.
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// Return zero will cause the stack to STALL request
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uint16_t tud_hid_get_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen)
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{
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// TODO not Implemented
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(void) instance;
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(void) report_id;
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(void) report_type;
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(void) buffer;
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(void) reqlen;
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return 0;
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}
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// Invoked when received SET_REPORT control request or
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// received data on OUT endpoint ( Report ID = 0, Type = 0 )
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void tud_hid_set_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize)
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{
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// This example doesn't use multiple report and report ID
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(void) instance;
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(void) report_id;
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(void) report_type;
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// Process the request
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uint16_t cmd = (buffer[1] << 8) | buffer[0];
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uint16_t param = (buffer[3] << 8) | buffer[2];
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uint16_t x0 = (buffer[5] << 8) | buffer[4];
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uint16_t y0 = (buffer[7] << 8) | buffer[6];
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uint16_t x1 = (buffer[9] << 8) | buffer[8];
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uint16_t y1 = (buffer[11] << 8) | buffer[10];
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uint16_t id = (buffer[13] << 8) | buffer[12];
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uint16_t chksum = (buffer[15] << 8) | buffer[14];
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uint8_t retval = 1;
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switch (buffer[0]) {
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case USBCMD_RESET:
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// reset system
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(*((volatile uint32_t*)(PPB_BASE + 0x0ED0C))) = 0x5FA0004; // Reset via NVIC
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break;
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case USBCMD_POWERDOWN:
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// TODO
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break;
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case USBCMD_POWERUP:
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// TODO
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break;
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case USBCMD_SETINPUT:
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retval = caster_setinput((uint8_t)param);
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break;
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case USBCMD_REDRAW:
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retval = caster_redraw(x0, y0, x1, y1);
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break;
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case USBCMD_SETMODE:
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retval = caster_setmode(x0, y0, x1, y1, (UPDATE_MODE)param);
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break;
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}
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uint8_t txbuf[1];
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txbuf[0] = retval;
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tud_hid_report(0, txbuf, 1);
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}
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void usbapp_task(void) {
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tud_task();
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}
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