Add FPGA download mode

This commit is contained in:
Renze Nicolai 2022-05-16 23:07:30 +02:00
parent 158d30eaa7
commit 4adce1006a
4 changed files with 180 additions and 1 deletions

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@ -1,5 +1,5 @@
idf_component_register(
SRCS "main.c" "menu.c" "fpga_test.c" "pax_keyboard.c" "system_wrapper.c" "appfs_wrapper.c" "graphics_wrapper.c" "settings.c" "wifi_connection.c" "rp2040_updater.c" "wifi_ota.c"
SRCS "main.c" "menu.c" "fpga_test.c" "pax_keyboard.c" "system_wrapper.c" "appfs_wrapper.c" "graphics_wrapper.c" "settings.c" "wifi_connection.c" "rp2040_updater.c" "wifi_ota.c" "fpga_download.c"
INCLUDE_DIRS "." "include"
EMBED_TXTFILES ${project_dir}/server_certs/isrgrootx1.pem
)

163
main/fpga_download.c Normal file
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@ -0,0 +1,163 @@
#include <stdio.h>
#include <string.h>
#include <sdkconfig.h>
#include <freertos/FreeRTOS.h>
#include <freertos/task.h>
#include <freertos/queue.h>
#include <esp_system.h>
#include <esp_err.h>
#include <esp_log.h>
#include "driver/uart.h"
#include "hardware.h"
#include "managed_i2c.h"
#include "pax_gfx.h"
#include "ice40.h"
#include "system_wrapper.h"
#include "graphics_wrapper.h"
#include "esp32/rom/crc.h"
void fpga_install_uart() {
fflush(stdout);
ESP_ERROR_CHECK(uart_driver_install(0, 2048, 0, 0, NULL, 0));
uart_config_t uart_config = {
.baud_rate = 921600,
.data_bits = UART_DATA_8_BITS,
.parity = UART_PARITY_DISABLE,
.stop_bits = UART_STOP_BITS_1,
.flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
.source_clk = UART_SCLK_APB,
};
ESP_ERROR_CHECK(uart_param_config(0, &uart_config));
}
void fpga_uninstall_uart() {
uart_driver_delete(0);
}
bool fpga_read_stdin(uint8_t* buffer, uint32_t len, uint32_t timeout) {
int read = uart_read_bytes(0, buffer, len, timeout / portTICK_PERIOD_MS);
return (read == len);
}
bool fpga_uart_sync(uint32_t* length, uint32_t* crc) {
uint8_t data[256];
uart_read_bytes(0, data, sizeof(data), 10 / portTICK_PERIOD_MS);
char command[] = "FPGA";
uart_write_bytes(0, command, 4);
uint8_t rx_buffer[4 * 3];
fpga_read_stdin(rx_buffer, sizeof(rx_buffer), 1000);
if (memcmp(rx_buffer, "FPGA", 4) != 0) return false;
memcpy((uint8_t*) length, &rx_buffer[4 * 1], 4);
memcpy((uint8_t*) crc, &rx_buffer[4 * 2], 4);
return true;
}
bool fpga_uart_load(uint8_t* buffer, uint32_t length) {
return fpga_read_stdin(buffer, length, 3000);
}
void fpga_download(ICE40* ice40, pax_buf_t* pax_buffer, ILI9341* ili9341) {
char message[64];
pax_noclip(pax_buffer);
pax_background(pax_buffer, 0x325aa8);
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*0, "FPGA download mode");
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*1, "Preparing...");
ili9341_write(ili9341, pax_buffer->buf);
fpga_install_uart();
ice40_disable(ice40);
ili9341_init(ili9341);
uint8_t counter = 0;
uint32_t length = 0;
uint32_t crc = 0;
while (!fpga_uart_sync(&length, &crc)) {
pax_noclip(pax_buffer);
pax_background(pax_buffer, 0x325aa8);
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*0, "FPGA download mode");
snprintf(message, sizeof(message), "Waiting for bitstream%s%s%s", (counter > 0) ? "." : " ", (counter > 1) ? "." : " ", (counter > 2) ? "." : " ");
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*1, message);
ili9341_write(ili9341, pax_buffer->buf);
counter++;
if (counter > 3) counter = 0;
}
while (true) {
pax_noclip(pax_buffer);
pax_background(pax_buffer, 0x325aa8);
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*0, "FPGA download mode");
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*1, "Receiving bitstream...");
ili9341_write(ili9341, pax_buffer->buf);
uint8_t* buffer = malloc(length);
if (buffer == NULL) {
free(buffer);
pax_noclip(pax_buffer);
pax_background(pax_buffer, 0xa85a32);
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*0, "FPGA download mode");
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*1, "Malloc failed");
ili9341_write(ili9341, pax_buffer->buf);
vTaskDelay(1000 / portTICK_PERIOD_MS);
fpga_uninstall_uart();
return;
}
if (!fpga_uart_load(buffer, length)) {
free(buffer);
pax_noclip(pax_buffer);
pax_background(pax_buffer, 0xa85a32);
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*0, "FPGA download mode");
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*1, "Timeout while loading");
ili9341_write(ili9341, pax_buffer->buf);
vTaskDelay(1000 / portTICK_PERIOD_MS);
fpga_uninstall_uart();
return;
}
uint32_t checkCrc = crc32_le(0, buffer, length);
if (checkCrc != crc) {
free(buffer);
pax_noclip(pax_buffer);
pax_background(pax_buffer, 0xa85a32);
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*0, "FPGA download mode");
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*1, "CRC incorrect");
snprintf(message, sizeof(message), "Provided CRC: %08X", crc);
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*2, message);
snprintf(message, sizeof(message), "Calculated CRC: %08X", checkCrc);
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*3, message);
ili9341_write(ili9341, pax_buffer->buf);
vTaskDelay(1000 / portTICK_PERIOD_MS);
fpga_uninstall_uart();
return;
}
ili9341_deinit(ili9341);
ili9341_select(ili9341, false);
vTaskDelay(200 / portTICK_PERIOD_MS);
ili9341_select(ili9341, true);
esp_err_t res = ice40_load_bitstream(ice40, buffer, length);
free(buffer);
if (res == ESP_OK) {
while (!fpga_uart_sync(&length, &crc)) {
vTaskDelay(2 / portTICK_PERIOD_MS);
}
ice40_disable(ice40);
ili9341_init(ili9341);
} else {
ice40_disable(ice40);
ili9341_init(ili9341);
pax_noclip(pax_buffer);
pax_background(pax_buffer, 0xa85a32);
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*0, "FPGA download mode");
pax_draw_text(pax_buffer, 0xFFFFFFFF, NULL, 18, 0, 20*1, "FPGA signals not done");
ili9341_write(ili9341, pax_buffer->buf);
vTaskDelay(1000 / portTICK_PERIOD_MS);
fpga_uninstall_uart();
return;
}
}
}

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@ -0,0 +1,7 @@
#pragma once
#include "ice40.h"
#include "pax_gfx.h"
#include "ili9341.h"
void fpga_download(ICE40* ice40, pax_buf_t* pax_buffer, ILI9341* ili9341);

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@ -40,6 +40,8 @@
#include "esp_vfs.h"
#include "esp_vfs_fat.h"
#include "fpga_download.h"
static const char *TAG = "main";
typedef enum action {
@ -49,6 +51,7 @@ typedef enum action {
ACTION_SETTINGS,
ACTION_OTA,
ACTION_FPGA,
ACTION_FPGA_DL,
ACTION_RP2040_BL,
ACTION_WIFI_CONNECT,
ACTION_WIFI_SCAN,
@ -138,6 +141,10 @@ void menu_launcher(xQueueHandle buttonQueue, pax_buf_t* pax_buffer, ILI9341* ili
menu_args_t* ota_args = malloc(sizeof(menu_args_t));
ota_args->action = ACTION_OTA;
menu_insert_item(menu, "Firmware update", NULL, ota_args, -1);
menu_args_t* fpga_dl_args = malloc(sizeof(menu_args_t));
fpga_dl_args->action = ACTION_FPGA_DL;
menu_insert_item(menu, "FPGA download", NULL, fpga_dl_args, -1);
menu_args_t* fpga_args = malloc(sizeof(menu_args_t));
fpga_args->action = ACTION_FPGA;
@ -742,6 +749,8 @@ void app_main(void) {
} else if (menu_action == ACTION_FPGA) {
graphics_task(pax_buffer, ili9341, NULL, "Loading...");
fpga_test(ili9341, ice40, rp2040->queue);
} else if (menu_action == ACTION_FPGA_DL) {
fpga_download(ice40, pax_buffer, ili9341);
} else if (menu_action == ACTION_RP2040_BL) {
graphics_task(pax_buffer, ili9341, NULL, "RP2040 update...");
rp2040_reboot_to_bootloader(rp2040);