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nodemcu-firmware/components/base_nodemcu/user_main.c

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/******************************************************************************
* Copyright 2013-2014 Espressif Systems (Wuxi)
*
* FileName: user_main.c
*
* Description: entry file of user application
*
* Modification history:
* 2014/1/1, v1.0 create this file.
*******************************************************************************/
#include "lua.h"
#include "linput.h"
#include "platform.h"
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include "sdkconfig.h"
#include "esp_system.h"
#include "esp_event.h"
#include "esp_spiffs.h"
#include "esp_netif.h"
#include "esp_vfs_dev.h"
#include "esp_vfs_cdcacm.h"
#include "esp_vfs_usb_serial_jtag.h"
#include "driver/usb_serial_jtag.h"
#include "nvs_flash.h"
#include "task/task.h"
#include "sections.h"
#include "nodemcu_esp_event.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"
#define SIG_LUA 0
#define SIG_UARTINPUT 1
// We don't get argument size data from the esp_event dispatch, so it's
// not possible to copy and forward events from the default event queue
// to one running within our task context. To cope with this, we instead
// have to effectively make a blocking inter-task call, by having our
// default loop handler post a nodemcu task event with a pointer to the
// event data, and then *block* until that task event has been processed.
// This is less elegant than I would like, but trying to run the entire
// LVM in the context of the system default event loop RTOS task is an
// even worse idea, so here we are.
typedef struct {
esp_event_base_t event_base;
int32_t event_id;
void *event_data;
} relayed_event_t;
static task_handle_t relayed_event_task;
static SemaphoreHandle_t relayed_event_handled;
static task_handle_t lua_feed_task;
// This function runs in the context of the system default event loop RTOS task
static void relay_default_loop_events(
void *arg, esp_event_base_t base, int32_t id, void *data)
{
(void)arg;
relayed_event_t event = {
.event_base = base,
.event_id = id,
.event_data = data,
};
_Static_assert(sizeof(&event) >= sizeof(task_param_t), "pointer-vs-int");
// Only block if we actually posted the request, otherwise we'll deadlock!
if (task_post_medium(relayed_event_task, (intptr_t)&event))
xSemaphoreTake(relayed_event_handled, portMAX_DELAY);
else
printf("ERROR: failed to forward esp event %s/%ld", base, id);
}
static void handle_default_loop_event(task_param_t param, task_prio_t prio)
{
(void)prio;
const relayed_event_t *event = (const relayed_event_t *)param;
nodemcu_esp_event_reg_t *evregs = &_esp_event_cb_table_start;
for (; evregs < &_esp_event_cb_table_end; ++evregs)
{
bool event_base_match =
(evregs->event_base_ptr == NULL) || // ESP_EVENT_ANY_BASE marker
(*evregs->event_base_ptr == event->event_base);
bool event_id_match =
(evregs->event_id == event->event_id) ||
(evregs->event_id == ESP_EVENT_ANY_ID);
if (event_base_match && event_id_match)
evregs->callback(event->event_base, event->event_id, event->event_data);
}
xSemaphoreGive(relayed_event_handled);
}
// +================== New task interface ==================+
static void start_lua ()
{
NODE_DBG("Task task_lua started.\n");
if (lua_main()) // If it returns true then LFS restart is needed
lua_main();
}
static void nodemcu_init(void)
{
NODE_ERR("\n");
// Initialize platform first for lua modules.
if( platform_init() != PLATFORM_OK )
{
// This should never happen
NODE_DBG("Can not init platform for modules.\n");
return;
}
const char *label = CONFIG_NODEMCU_DEFAULT_SPIFFS_LABEL;
esp_vfs_spiffs_conf_t spiffs_cfg = {
.base_path = "",
.partition_label = (label && label[0]) ? label : NULL,
.max_files = CONFIG_NODEMCU_MAX_OPEN_FILES,
.format_if_mount_failed = true,
};
const char *reason = NULL;
switch(esp_vfs_spiffs_register(&spiffs_cfg))
{
case ESP_OK: break;
case ESP_ERR_NO_MEM:
reason = "out of memory";
break;
case ESP_ERR_INVALID_STATE:
reason = "already mounted, or encrypted";
break;
case ESP_ERR_NOT_FOUND:
reason = "no SPIFFS partition found";
break;
case ESP_FAIL:
reason = "failed to mount or format partition";
break;
default:
reason = "unknown";
break;
}
if (reason)
printf("Failed to mount SPIFFS partition: %s\n", reason);
}
static bool have_console_on_data_cb(void)
{
#if CONFIG_ESP_CONSOLE_UART_DEFAULT || CONFIG_ESP_CONSOLE_UART_CUSTOM
return uart_has_on_data_cb(CONFIG_ESP_CONSOLE_UART_NUM);
#else
return false;
#endif
}
static void console_nodemcu_task(task_param_t param, task_prio_t prio)
{
(void)prio;
char c = (char)param;
if (run_input)
feed_lua_input(&c, 1);
#if CONFIG_ESP_CONSOLE_UART_DEFAULT || CONFIG_ESP_CONSOLE_UART_CUSTOM
if (have_console_on_data_cb())
uart_feed_data(CONFIG_ESP_CONSOLE_UART_NUM, &c, 1);
#endif
// The IDF doesn't seem to honor setvbuf(stdout, NULL, _IONBF, 0) :(
fsync(fileno(stdout));
}
static void console_task(void *)
{
for (;;)
{
/* We can't use a large read buffer here as some console choices
* (e.g. usb-serial-jtag) don't support read timeouts/partial reads,
* which breaks the echo support and makes for a bad user experience.
*/
char c;
ssize_t n = read(fileno(stdin), &c, 1);
if (n > 0 && (run_input || have_console_on_data_cb()))
{
if (!task_post_block_high(lua_feed_task, (task_param_t)c))
{
NODE_ERR("Lost console input data?!\n");
}
}
}
}
static void console_init(void)
{
fflush(stdout);
fsync(fileno(stdout));
/* Disable buffering */
setvbuf(stdin, NULL, _IONBF, 0);
setvbuf(stdout, NULL, _IONBF, 0);
/* Disable non-blocking mode */
fcntl(fileno(stdin), F_SETFL, 0);
fcntl(fileno(stdout), F_SETFL, 0);
#if CONFIG_ESP_CONSOLE_UART_DEFAULT || CONFIG_ESP_CONSOLE_UART_CUSTOM
/* Based on console/advanced example */
esp_vfs_dev_uart_port_set_rx_line_endings(
CONFIG_ESP_CONSOLE_UART_NUM, ESP_LINE_ENDINGS_CR);
esp_vfs_dev_uart_port_set_tx_line_endings(
CONFIG_ESP_CONSOLE_UART_NUM, ESP_LINE_ENDINGS_CRLF);
/* Configure UART. Note that REF_TICK is used so that the baud rate remains
* correct while APB frequency is changing in light sleep mode.
*/
const uart_config_t uart_config = {
.baud_rate = CONFIG_ESP_CONSOLE_UART_BAUDRATE,
.data_bits = UART_DATA_8_BITS,
.parity = UART_PARITY_DISABLE,
.stop_bits = UART_STOP_BITS_1,
#if SOC_UART_SUPPORT_REF_TICK
.source_clk = UART_SCLK_REF_TICK,
#elif SOC_UART_SUPPORT_XTAL_CLK
.source_clk = UART_SCLK_XTAL,
#endif
};
/* Install UART driver for interrupt-driven reads and writes */
uart_driver_install(CONFIG_ESP_CONSOLE_UART_NUM, 256, 0, 0, NULL, 0);
uart_param_config(CONFIG_ESP_CONSOLE_UART_NUM, &uart_config);
/* Tell VFS to use UART driver */
esp_vfs_dev_uart_use_driver(CONFIG_ESP_CONSOLE_UART_NUM);
#elif CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG
/* Based on @pjsg's work */
esp_vfs_dev_usb_serial_jtag_set_rx_line_endings(ESP_LINE_ENDINGS_CR);
esp_vfs_dev_usb_serial_jtag_set_tx_line_endings(ESP_LINE_ENDINGS_CRLF);
usb_serial_jtag_driver_config_t usb_serial_jtag_config =
USB_SERIAL_JTAG_DRIVER_CONFIG_DEFAULT();
/* Install USB-SERIAL-JTAG driver for interrupt-driven reads and write */
usb_serial_jtag_driver_install(&usb_serial_jtag_config);
esp_vfs_usb_serial_jtag_use_driver();
#elif CONFIG_ESP_CONSOLE_USB_CDC
/* Based on console/advanced_usb_cdc */
esp_vfs_dev_cdcacm_set_rx_line_endings(ESP_LINE_ENDINGS_CR);
esp_vfs_dev_cdcacm_set_tx_line_endings(ESP_LINE_ENDINGS_CRLF);
#else
# error "Unsupported console type"
#endif
xTaskCreate(
console_task, "console", 1024, NULL, ESP_TASK_MAIN_PRIO+1, NULL);
}
void __attribute__((noreturn)) app_main(void)
{
task_init();
lua_feed_task = task_get_id(console_nodemcu_task);
relayed_event_handled = xSemaphoreCreateBinary();
relayed_event_task = task_get_id(handle_default_loop_event);
esp_event_loop_create_default();
esp_event_handler_register(
ESP_EVENT_ANY_BASE,
ESP_EVENT_ANY_ID,
relay_default_loop_events,
NULL);
nodemcu_init ();
nvs_flash_init ();
esp_netif_init ();
console_init();
start_lua ();
task_pump_messages ();
__builtin_unreachable ();
}
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