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| 1 | +/* |
| 2 | + * Copyright (c) 2016-2025 Moddable Tech, Inc. |
| 3 | + * |
| 4 | + * This file is part of the Moddable SDK Runtime. |
| 5 | + * |
| 6 | + * The Moddable SDK Runtime is free software: you can redistribute it and/or modify |
| 7 | + * it under the terms of the GNU Lesser General Public License as published by |
| 8 | + * the Free Software Foundation, either version 3 of the License, or |
| 9 | + * (at your option) any later version. |
| 10 | + * |
| 11 | + * The Moddable SDK Runtime is distributed in the hope that it will be useful, |
| 12 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | + * GNU Lesser General Public License for more details. |
| 15 | + * |
| 16 | + * You should have received a copy of the GNU Lesser General Public License |
| 17 | + * along with the Moddable SDK Runtime. If not, see <http://www.gnu.org/licenses/>. |
| 18 | + * |
| 19 | + */ |
| 20 | + |
| 21 | +#define __XS6PLATFORMMINIMAL__ |
| 22 | + |
| 23 | +#include <stdio.h> |
| 24 | +#include <stdlib.h> |
| 25 | +#include <string.h> |
| 26 | +#include "freertos/FreeRTOS.h" |
| 27 | +#include "freertos/task.h" |
| 28 | +#include "sdkconfig.h" |
| 29 | +#include "esp_log.h" |
| 30 | + |
| 31 | +#include "driver/usb_serial_jtag.h" |
| 32 | + |
| 33 | +#include "xs.h" |
| 34 | +#include "xsHost.h" |
| 35 | +#include "xsHosts.h" |
| 36 | + |
| 37 | +#include "mc.defines.h" |
| 38 | + |
| 39 | +#ifndef XT_STACK_EXTRA |
| 40 | + #define XT_STACK_EXTRA 512 |
| 41 | +#endif |
| 42 | + |
| 43 | +//#define WEAK __attribute__((weak)) |
| 44 | +#define WEAK |
| 45 | + |
| 46 | +#ifdef mxDebug |
| 47 | + extern xsMachine *gThe; |
| 48 | +#endif |
| 49 | + |
| 50 | +extern void fx_putc(void *refcon, char c); //@@ |
| 51 | + |
| 52 | +uint8_t jtagReady = 1; |
| 53 | +uint8_t jtag0_position = 0, jtag0_available = 0; |
| 54 | +uint8_t jtag1_position = 0, jtag1_available = 0; |
| 55 | +static uint8_t jtag0[128]; |
| 56 | +static uint8_t jtag1[128]; |
| 57 | + |
| 58 | +static void debug_task(void *pvParameter) |
| 59 | +{ |
| 60 | + usb_serial_jtag_driver_config_t cfg = { .rx_buffer_size = 512, .tx_buffer_size = 512 }; |
| 61 | + usb_serial_jtag_driver_install(&cfg); |
| 62 | + |
| 63 | + while (true) { |
| 64 | + if (0 == jtagReady) { |
| 65 | + int amt = usb_serial_jtag_read_bytes(jtag1, sizeof(jtag1), 1); |
| 66 | + if (0 == amt) |
| 67 | + continue; |
| 68 | + jtag1_position = 0; |
| 69 | + jtag1_available = (uint8_t)amt; |
| 70 | + } |
| 71 | + else { |
| 72 | + int amt = usb_serial_jtag_read_bytes(jtag0, sizeof(jtag0), 1); |
| 73 | + if (0 == amt) |
| 74 | + continue; |
| 75 | + jtag0_position = 0; |
| 76 | + jtag0_available = (uint8_t)amt; |
| 77 | + } |
| 78 | + |
| 79 | +#ifdef mxDebug |
| 80 | + fxReceiveLoop(); |
| 81 | +#endif |
| 82 | + } |
| 83 | +} |
| 84 | + |
| 85 | +/* |
| 86 | + Required functions provided by application |
| 87 | + to enable serial port for diagnostic information and debugging |
| 88 | +*/ |
| 89 | + |
| 90 | +WEAK void modLog_transmit(const char *msg) |
| 91 | +{ |
| 92 | +#ifdef mxDebug |
| 93 | + if (gThe) { |
| 94 | + uint8_t c; |
| 95 | + while (0 != (c = *msg++)) |
| 96 | + fx_putc(gThe, c); |
| 97 | + fx_putc(gThe, 0); |
| 98 | + } |
| 99 | + else |
| 100 | +#endif |
| 101 | + { |
| 102 | + const uint8_t crlf[] = {13, 10}; |
| 103 | + ESP_put((uint8_t *)msg, strlen(msg)); |
| 104 | + ESP_put((uint8_t *)crlf, 2); |
| 105 | + } |
| 106 | +} |
| 107 | + |
| 108 | +WEAK void ESP_put(uint8_t *c, int count) { |
| 109 | + while (count > 0) { |
| 110 | + int sent = usb_serial_jtag_write_bytes(c, count, 10); |
| 111 | + if (sent <= 0) |
| 112 | + break; |
| 113 | + c += sent; |
| 114 | + count -= sent; |
| 115 | + } |
| 116 | +} |
| 117 | + |
| 118 | +WEAK void ESP_putc(int c) { |
| 119 | + char cx = c; |
| 120 | + usb_serial_jtag_write_bytes(&cx, 1, 1); |
| 121 | +} |
| 122 | + |
| 123 | +WEAK int ESP_getc(void) { |
| 124 | + if (0 == jtagReady) { |
| 125 | + if (jtag0_available) { |
| 126 | + jtag0_available--; |
| 127 | + return jtag0[jtag0_position++]; |
| 128 | + } |
| 129 | + else if (jtag1_available) { |
| 130 | + jtagReady = 1; |
| 131 | + jtag1_available--; |
| 132 | + return jtag1[jtag1_position++]; |
| 133 | + } |
| 134 | + } |
| 135 | + else { |
| 136 | + if (jtag1_available) { |
| 137 | + jtag1_available--; |
| 138 | + return jtag1[jtag1_position++]; |
| 139 | + } |
| 140 | + else if (jtag0_available) { |
| 141 | + jtagReady = 0; |
| 142 | + jtag0_available--; |
| 143 | + return jtag0[jtag0_position++]; |
| 144 | + } |
| 145 | + } |
| 146 | + |
| 147 | + return -1; |
| 148 | +} |
| 149 | + |
| 150 | +WEAK uint8_t ESP_isReadable() { |
| 151 | + return jtag0_available || jtag1_available; |
| 152 | +} |
| 153 | + |
| 154 | +WEAK uint8_t ESP_setBaud(int baud) { |
| 155 | + return 1; |
| 156 | +} |
| 157 | + |
| 158 | +void setupDebugger(void) { |
| 159 | + xTaskCreate(debug_task, "debug", (768 + XT_STACK_EXTRA) / sizeof(StackType_t), 0, 8, NULL); |
| 160 | +} |
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