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nodemcu-firmware/components/modules/node.c

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#include "module.h"
#include "lauxlib.h"
#include "common.h"
#include "lundump.h"
#include "platform.h"
#include "task/task.h"
#include "esp_system.h"
#include "esp_timer.h"
#include "esp_log.h"
#include "esp_sleep.h"
#include "driver/rtc_io.h"
#include "soc/efuse_reg.h"
#include "ldebug.h"
#include "esp_vfs.h"
#include "lnodeaux.h"
#include "lpanic.h"
#include "rom/rtc.h"
#include "freertos/FreeRTOS.h"
#include "freertos/timers.h"
#include "esp_chip_info.h"
#include "esp_flash.h"
#include "user_version.h"
static void restart_callback(TimerHandle_t timer) {
(void)timer;
esp_restart();
}
static int default_onerror(lua_State *L) {
/* Use Lua print to print the ToS */
lua_settop(L, 1);
lua_getglobal(L, "print");
lua_insert(L, 1);
lua_pcall(L, 1, 0, 0);
/* One first time through set automatic restart after 2s delay */
static TimerHandle_t restart_timer;
if (!restart_timer) {
restart_timer = xTimerCreate(
"error_restart", pdMS_TO_TICKS(2000), pdFALSE, NULL, restart_callback);
if (xTimerStart(restart_timer, portMAX_DELAY) != pdPASS)
esp_restart(); // should never happen, but Justin Case fallback
}
return 0;
}
// Lua: setonerror([function])
static int node_setonerror( lua_State* L ) {
lua_settop(L, 1);
if (!lua_isfunction(L, 1)) {
lua_pop(L, 1);
lua_pushcfunction(L, default_onerror);
}
lua_setfield(L, LUA_REGISTRYINDEX, "onerror");
return 0;
}
// Lua: node.bootreason()
static int node_bootreason( lua_State *L)
{
int panicval = panic_get_nvval();
RESET_REASON rr0 = rtc_get_reset_reason(0);
unsigned rawinfo = 3;
// rawinfo can take these values as defined in docs/modules/node.md
//
// 1, power-on
// 2, reset (software?)
// 3, hardware reset via reset pin or unknown reason
// 4, WDT reset (watchdog timeout)
//
// extendedinfo can take these values as definded in docs/modules/node.md
//
// 0, power-on
// 1, hardware watchdog reset
// 2, exception reset
// 3, software watchdog reset
// 4, software restart
// 5, wake from deep sleep
// 6, external reset
// added values from rom/rtc.h with offset 7
// 7: NO_MEAN = 0,
// 8: POWERON_RESET = 1, /**<1, Vbat power on reset*/
// 9:
// 10: SW_RESET = 3, /**<3, Software reset digital core*/
// 11: OWDT_RESET = 4, /**<4, Legacy watch dog reset digital core*/
// 12: DEEPSLEEP_RESET = 5, /**<3, Deep Sleep reset digital core*/
// 13: SDIO_RESET = 6, /**<6, Reset by SLC module, reset digital core*/
// 14: TG0WDT_SYS_RESET = 7, /**<7, Timer Group0 Watch dog reset digital core*/
// 15: TG1WDT_SYS_RESET = 8, /**<8, Timer Group1 Watch dog reset digital core*/
// 16: RTCWDT_SYS_RESET = 9, /**<9, RTC Watch dog Reset digital core*/
// 17: INTRUSION_RESET = 10, /**<10, Instrusion tested to reset CPU*/
// 18: TGWDT_CPU_RESET = 11, /**<11, Time Group reset CPU*/
// 19: SW_CPU_RESET = 12, /**<12, Software reset CPU*/
// 20: RTCWDT_CPU_RESET = 13, /**<13, RTC Watch dog Reset CPU*/
// 21: EXT_CPU_RESET = 14, /**<14, for APP CPU, reseted by PRO CPU*/
// 22: RTCWDT_BROWN_OUT_RESET = 15, /**<15, Reset when the vdd voltage is not stable*/
// 23: RTCWDT_RTC_RESET = 16 /**<16, RTC Watch dog reset digital core and rtc module*/`
#if !defined(CONFIG_IDF_TARGET_ESP32)
# define SW_CPU_RESET RTC_SW_CPU_RESET
# define SW_RESET RTC_SW_SYS_RESET
#endif
switch (rr0) {
case POWERON_RESET:
rawinfo = 1; break;
case SW_CPU_RESET:
case SW_RESET:
rawinfo = 2; break;
case NO_MEAN:
#if defined(CONFIG_IDF_TARGET_ESP32)
case EXT_CPU_RESET:
#endif
case DEEPSLEEP_RESET:
#if defined(CONFIG_IDF_TARGET_ESP32) || defined(CONFIG_IDF_TARGET_ESP32C6)
case SDIO_RESET:
#endif
#if defined(CONFIG_IDF_TARGET_ESP32S2) || defined(CONFIG_IDF_TARGET_ESP32S3) || defined(CONFIG_IDF_TARGET_ESP32C3)
case GLITCH_RTC_RESET:
#endif
#if defined(CONFIG_IDF_TARGET_ESP32S2) || defined(CONFIG_IDF_TARGET_ESP32S3) || defined(CONFIG_IDF_TARGET_ESP32C3) || defined(CONFIG_IDF_TARGET_ESP32C6) || defined(CONFIG_IDF_TARGET_ESP32H2) || defined(CONFIG_IDF_TARGET_ESP32C5)
case EFUSE_RESET:
#endif
#if defined(CONFIG_IDF_TARGET_ESP32C6) || defined(CONFIG_IDF_TARGET_ESP32C5)
case JTAG_RESET:
#endif
#if defined(CONFIG_IDF_TARGET_ESP32H2)
case JTAG_CPU_RESET:
#endif
#if defined(CONFIG_IDF_TARGET_ESP32S3) || defined(CONFIG_IDF_TARGET_ESP32C3) || defined(CONFIG_IDF_TARGET_ESP32C6) || defined(CONFIG_IDF_TARGET_ESP32H2) || defined(CONFIG_IDF_TARGET_ESP32C5)
case USB_UART_CHIP_RESET:
case USB_JTAG_CHIP_RESET:
#endif
#if defined(CONFIG_IDF_TARGET_ESP32S3) || defined(CONFIG_IDF_TARGET_ESP32C3) || defined(CONFIG_IDF_TARGET_ESP32H2)
case POWER_GLITCH_RESET:
#endif
case TG0WDT_SYS_RESET:
case TG1WDT_SYS_RESET:
#if !defined(CONFIG_IDF_TARGET_ESP32C6) && !defined(CONFIG_IDF_TARGET_ESP32C5) && !defined(CONFIG_IDF_TARGET_ESP32H2)
case INTRUSION_RESET:
#endif
case RTCWDT_BROWN_OUT_RESET:
case RTCWDT_RTC_RESET:
rawinfo = 3; break;
#if defined(CONFIG_IDF_TARGET_ESP32)
case OWDT_RESET:
case TGWDT_CPU_RESET:
#else
case TG0WDT_CPU_RESET:
case TG1WDT_CPU_RESET:
case SUPER_WDT_RESET:
#endif
case RTCWDT_CPU_RESET:
case RTCWDT_SYS_RESET:
rawinfo = 4; break;
}
lua_pushinteger(L, (lua_Integer)rawinfo);
lua_pushinteger(L, (lua_Integer)rr0+7);
if (rr0 == SW_CPU_RESET) {
lua_pushinteger(L, (lua_Integer)panicval);
return 3;
}
return 2;
}
#if defined(CONFIG_IDF_TARGET_ESP32)
// Lua: node.chipid()
static int node_chipid( lua_State *L )
{
// This matches the way esptool.py generates a chipid for the ESP32 as of
// esptool commit e9e9179f6fc3f2ecfc568987d3224b5e53a05f06
// Oddly, this drops the lowest byte what's effectively the MAC address, so
// it would seem plausible to encounter up to 256 chips with the same chipid
uint64_t word16 = REG_READ(EFUSE_BLK0_RDATA1_REG);
uint64_t word17 = REG_READ(EFUSE_BLK0_RDATA2_REG);
const uint64_t MAX_UINT24 = 0xffffff;
uint64_t cid = ((word17 & MAX_UINT24) << 24) | ((word16 >> 8) & MAX_UINT24);
char chipid[17] = { 0 };
sprintf(chipid, "0x%llx", cid);
lua_pushstring(L, chipid);
return 1;
}
#endif
// Lua: node.chipmodel()
static int node_chipmodel(lua_State *L)
{
lua_pushstring(L, CONFIG_IDF_TARGET);
return 1;
}
// Lua: node.heap()
static int node_heap( lua_State* L )
{
uint32_t sz = esp_get_free_heap_size();
lua_pushinteger(L, sz);
return 1;
}
static int node_restart (lua_State *L)
{
panic_clear_nvval();
esp_restart ();
return 0;
}
static void node_sleep_set_uart (lua_State *L, int uart)
{
int err = esp_sleep_enable_uart_wakeup(uart);
if (err) {
luaL_error(L, "Error %d returned from esp_sleep_enable_uart_wakeup(%d)", err, uart);
}
}
static bool node_sleep_get_time_options (lua_State *L, int64_t *usecs)
{
lua_getfield(L, 1, "us");
lua_getfield(L, 1, "secs");
bool option_present = !lua_isnil(L, 2) || !lua_isnil(L, 3);
lua_pop(L, 2);
*usecs = 0;
if (option_present) {
*usecs += opt_checkint(L, "us", 0);
*usecs += (int64_t)opt_checkint(L, "secs", 0) * 1000000;
}
return option_present;
}
static void node_sleep_disable_wakeup_sources (lua_State *L)
{
// Start with known state, to ensure previous sleep calls don't leave any
// settings left over
int err = esp_sleep_disable_wakeup_source(ESP_SLEEP_WAKEUP_ALL);
if (err) {
luaL_error(L, "Error %d returned from esp_sleep_disable_wakeup_source", err);
}
}
static int node_sleep (lua_State *L)
{
lua_settop(L, 1);
luaL_checktable(L, 1);
node_sleep_disable_wakeup_sources(L);
// uart options: uart = num|{num, num, ...}
lua_getfield(L, -1, "uart");
int type = lua_type(L, -1);
if (type == LUA_TNUMBER) {
node_sleep_set_uart(L, lua_tointeger(L, -1));
} else if (type == LUA_TTABLE) {
for (int i = 1; ; i++) {
lua_rawgeti(L, -1, i);
if (lua_isnil(L, -1)) {
lua_pop(L, 1); // uart[i]
break;
}
int uart = lua_tointeger(L, -1);
lua_pop(L, 1); // uart[i]
node_sleep_set_uart(L, uart);
}
} else if (type != LUA_TNIL) {
return opt_error(L, "uart", "must be integer or table");
}
lua_pop(L, 1); // uart
// gpio option: boolean (individual pins are configured in advance with gpio.wakeup())
// Make sure to do GPIO before touch, because esp_sleep_enable_gpio_wakeup()
// seems to think touch is not compatible with GPIO wakeup and will error the
// call if you order them the other way round, despite the fact that
// esp_sleep_enable_touchpad_wakeup() does not have a similar check, and I've
// tested using both GPIO and touch wakeups at once and it works fine for me.
// I think this is simply a bug in the Espressif SDK, because sleep_modes.rst
// only mentions compatibility issues with touch and EXT0 wakeup, which is
// not the same as GPIO wakeup.
if (opt_checkbool(L, "gpio", false)) {
int err = esp_sleep_enable_gpio_wakeup();
if (err) {
return luaL_error(L, "Error %d returned from esp_sleep_enable_gpio_wakeup()", err);
}
}
// time options: us, secs
int64_t usecs = 0;
if (node_sleep_get_time_options(L, &usecs)) {
esp_sleep_enable_timer_wakeup(usecs);
}
#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32C6) && !defined(CONFIG_IDF_TARGET_ESP32H2) && !defined(CONFIG_IDF_TARGET_ESP32C5)
// touch option: boolean
if (opt_checkbool(L, "touch", false)) {
int err = esp_sleep_enable_touchpad_wakeup();
if (err) {
return luaL_error(L, "Error %d returned from esp_sleep_enable_touchpad_wakeup()", err);
}
}
// ulp option: boolean
if (opt_checkbool(L, "ulp", false)) {
int err = esp_sleep_enable_ulp_wakeup();
if (err) {
return luaL_error(L, "Error %d returned from esp_sleep_enable_ulp_wakeup()", err);
}
}
#endif
int err = esp_light_sleep_start();
if (err == ESP_ERR_INVALID_STATE) {
return luaL_error(L, "WiFi and BT must be stopped before sleeping");
} else if (err) {
return luaL_error(L, "Error %d returned from esp_light_sleep_start()", err);
}
esp_sleep_wakeup_cause_t cause = esp_sleep_get_wakeup_cause();
lua_pushinteger(L, (int)cause);
return 1;
}
// Lua: node.dsleep (microseconds|{opts})
static int node_dsleep (lua_State *L)
{
lua_settop(L, 1);
node_sleep_disable_wakeup_sources(L);
bool enable_timer_wakeup = false;
int64_t usecs = 0;
int type = lua_type(L, 1);
if (type == LUA_TNUMBER) {
enable_timer_wakeup = true;
usecs = lua_tointeger(L, 1);
} else if (type == LUA_TTABLE) {
enable_timer_wakeup = node_sleep_get_time_options(L, &usecs);
// GPIO wakeup options: gpio = num|{num, num, ...}
uint64_t pin_mask = 0;
lua_getfield(L, -1, "gpio");
type = lua_type(L, -1);
if (type == LUA_TNUMBER) {
pin_mask |= 1ULL << lua_tointeger(L, -1);
} else if (type == LUA_TTABLE) {
for (int i = 1; ; i++) {
lua_rawgeti(L, -1, i);
int pin = lua_tointeger(L, -1);
lua_pop(L, 1);
if (!pin) {
break;
}
pin_mask |= 1ULL << pin;
}
}
lua_pop(L, 1); // gpio
// Check pin validity here to get better error messages
for (int pin = 0; pin < GPIO_PIN_COUNT; pin++) {
if (pin_mask & (1ULL << pin)) {
if (!rtc_gpio_is_valid_gpio(pin)) {
return luaL_error(L, "Pin %d is not an RTC GPIO and cannot be used for wakeup", pin);
}
}
}
#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32C6) && !defined(CONFIG_IDF_TARGET_ESP32H2) && !defined(CONFIG_IDF_TARGET_ESP32C5)
bool pull = opt_checkbool(L, "pull", false);
if (opt_get(L, "isolate", LUA_TTABLE)) {
for (int i = 1; ; i++) {
lua_rawgeti(L, -1, i);
if (lua_isnil(L, -1)) {
lua_pop(L, 1);
break;
}
int pin = lua_tointeger(L, -1);
lua_pop(L, 1);
int err = rtc_gpio_isolate(pin);
if (err) {
return luaL_error(L, "Error %d returned from rtc_gpio_isolate(%d)", err, pin);
}
}
lua_pop(L, 1); // isolate table
}
if (pull) {
// Keeping the peripheral domain powered keeps the pullups/downs working
esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
}
int level = opt_checkint_range(L, "level", 1, 0, 1);
if (pin_mask) {
esp_sleep_ext1_wakeup_mode_t mode = (level == 1) ?
ESP_EXT1_WAKEUP_ANY_HIGH :
#ifdef CONFIG_IDF_TARGET_ESP32
ESP_EXT1_WAKEUP_ALL_LOW;
#else
ESP_EXT1_WAKEUP_ANY_LOW;
#endif
int err = esp_sleep_enable_ext1_wakeup(pin_mask, mode);
if (err) {
return luaL_error(L, "Error %d returned from esp_sleep_enable_ext1_wakeup", err);
}
}
bool touch = opt_checkbool(L, "touch", false);
if (touch) {
esp_sleep_enable_touchpad_wakeup();
}
#endif
} else {
luaL_argerror(L, 1, "Expected integer or table");
}
if (enable_timer_wakeup) {
esp_sleep_enable_timer_wakeup(usecs);
}
esp_deep_sleep_start();
// Note, above call does not actually return
return 0;
}
static void add_int_field( lua_State* L, lua_Integer i, const char *name){
lua_pushinteger(L, i);
lua_setfield(L, -2, name);
}
static void add_string_field( lua_State* L, const char *s, const char *name) {
lua_pushstring(L, s);
lua_setfield(L, -2, name);
}
static void get_lfs_config ( lua_State* );
static int node_info( lua_State* L ){
const char* options[] = {"lfs", "hw", "sw_version", "build_config", "default", NULL};
int option = luaL_checkoption (L, 1, options[4], options);
switch (option) {
case 0: { // lfs
get_lfs_config(L);
return 1;
}
case 1: { // hw
uint32_t flash_size, flash_id;
esp_chip_info_t chip_info;
esp_chip_info(&chip_info);
if(esp_flash_get_size(NULL, &flash_size) != ESP_OK) {
ESP_LOGW("node", "Get flash size failed");
flash_size = 0;
}
if(esp_flash_read_id(NULL, &flash_id) != ESP_OK) {
ESP_LOGW("node", "Get flash ID failed");
flash_id = 0;
}
lua_createtable(L, 0, 7);
add_string_field(L, CONFIG_IDF_TARGET, "chip_model");
add_int_field(L, chip_info.features, "chip_features");
add_int_field(L, chip_info.revision / 100, "chip_major_rev");
add_int_field(L, chip_info.revision % 100, "chip_minor_rev");
add_int_field(L, chip_info.cores, "cpu_cores");
add_int_field(L, flash_size / 1024, "flash_size"); // flash size in KB
add_int_field(L, flash_id, "flash_id");
return 1;
}
// based on PR https://github.com/nodemcu/nodemcu-firmware/pull/3289
case 2: { // sw_version
lua_createtable(L, 0, 8);
add_string_field(L, NODE_VERSION, "node_version");
add_int_field(L, NODE_VERSION_MAJOR, "node_version_major");
add_int_field(L, NODE_VERSION_MINOR, "node_version_minor");
add_int_field(L, NODE_VERSION_REVISION, "node_version_revision");
add_string_field(L, BUILDINFO_BRANCH, "git_branch");
add_string_field(L, BUILDINFO_COMMIT_ID, "git_commit_id");
add_string_field(L, BUILDINFO_RELEASE, "git_release");
add_string_field(L, BUILDINFO_RELEASE_DTS, "git_commit_dts");
return 1;
}
case 3: { // build_config
lua_createtable(L, 0, 5);
lua_pushboolean(L, CONFIG_MBEDTLS_TLS_ENABLED);
lua_setfield(L, -2, "ssl");
add_int_field(L, BUILDINFO_LFS_SIZE, "lfs_size");
add_string_field(L, BUILDINFO_BUILD_TYPE, "number_type");
add_string_field(L, BUILDINFO_MODULES, "modules");
#if CONFIG_ESP_CONSOLE_UART_DEFAULT || CONFIG_ESP_CONSOLE_UART_CUSTOM
add_string_field(L, "uart", "esp_console");
#elif CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG
add_string_field(L, "usb_serial_jtag", "esp_console");
#elif CONFIG_ESP_CONSOLE_USB_CDC
add_string_field(L, "usb_cdc", "esp_console");
#endif
return 1;
}
default: { // default
lua_newtable(L);
return 1;
}
}
}
// Lua: input("string")
static int node_input( lua_State* L )
{
size_t l = 0;
const char *s = luaL_checklstring(L, 1, &l);
if (l > 0 && l < LUA_MAXINPUT - 1)
lua_input_string(s, l);
return 0;
}
// The implementation of node.output implies replacing stdout with a virtual write-only file of
// which we can capture fwrite calls.
// When there is any write to the replaced stdout, our function redir_write will be called.
// we can then invoke the lua callback.
// A buffer size that should be sufficient for most cases, yet not so large
// as to present an issue.
# define OUTPUT_CHUNK_SIZE 127
typedef struct {
uint8_t used;
uint8_t bytes[OUTPUT_CHUNK_SIZE];
} output_chunk_t;
static task_handle_t output_task; // for getting output into the LVM thread
static lua_ref_t output_redir = LUA_NOREF; // this will hold the Lua callback
static FILE *serial_debug; // the console uart, if wanted
static const char *VFS_REDIR = "/redir"; // virtual filesystem mount point
// redir_write will be called everytime any code writes to stdout when
// redirection is active, from ANY RTOS thread
ssize_t redir_write(int fd, const void *data, size_t size) {
UNUSED(fd);
if (size)
{
size_t n = (size > OUTPUT_CHUNK_SIZE) ? OUTPUT_CHUNK_SIZE : size;
output_chunk_t *chunk = malloc(sizeof(output_chunk_t));
chunk->used = (uint8_t)n;
memcpy(chunk->bytes, data, n);
_Static_assert(sizeof(task_param_t) >= sizeof(chunk), "cast error below");
if (!task_post_high(output_task, (task_param_t)chunk))
{
static const char overflow[] = "E: output overflow\n";
fwrite(overflow, sizeof(overflow) -1, sizeof(char), serial_debug);
free(chunk);
return -1;
}
if (serial_debug)
{
size_t written = 0;
while (written < n)
{
size_t w = fwrite(
data + written, sizeof(char), n - written, serial_debug);
if (w > 0)
written += w;
else break;
}
}
return n;
}
else
return 0;
}
void redir_output(task_param_t param, task_prio_t prio)
{
UNUSED(prio);
output_chunk_t *chunk = (output_chunk_t *)param;
bool redir_active = (output_redir != LUA_NOREF);
if (redir_active)
{
lua_State *L = lua_getstate();
lua_rawgeti(L, LUA_REGISTRYINDEX, output_redir);
lua_pushlstring(L, (char *)chunk->bytes, chunk->used);
luaL_pcallx(L, 1, 0);
}
free(chunk);
}
#if !defined(CONFIG_ESP_CONSOLE_NONE)
static const char *default_console_name(void)
{
return
#if defined(CONFIG_ESP_CONSOLE_UART)
# define STRINGIFY(x) STRINGIFY2(x)
# define STRINGIFY2(x) #x
"/dev/uart/" STRINGIFY(CONFIG_ESP_CONSOLE_UART_NUM);
#undef STRINGIFY2
#undef STRINGIFY
#elif defined(CONFIG_ESP_CONSOLE_USB_CDC)
"/dev/cdcacm";
#elif defined(CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG)
"/dev/usbserjtag";
#endif
}
#endif
// redir_open is called when fopen() is called on /redir/xxx
int redir_open(const char *path, int flags, int mode) {
return 79; // since we only have one "file", just return some fd number to make the VFS system happy
}
// Lua: node.output(func, serial_debug)
static int node_output(lua_State *L) {
if (serial_debug)
{
fclose(serial_debug);
serial_debug = NULL;
}
if (lua_isfunction(L, 1)) {
if (output_redir == LUA_NOREF) {
// create an instance of a virtual filesystem so we can use fopen
esp_vfs_t redir_fs = {
.flags = ESP_VFS_FLAG_DEFAULT,
.write = &redir_write,
.open = &redir_open,
.fstat = NULL,
.close = NULL,
.read = NULL,
};
// register this filesystem under the `/redir` namespace
ESP_ERROR_CHECK(esp_vfs_register(VFS_REDIR, &redir_fs, NULL));
freopen(VFS_REDIR, "w", stdout);
if (lua_isnoneornil(L, 2) ||
(lua_isnumber(L, 2) && lua_tonumber(L, 2)))
serial_debug = fopen(default_console_name(), "w");
} else {
luaX_unset_ref(L, &output_redir); // dereference previous callback
}
luaX_set_ref(L, 1, &output_redir); // set the callback
} else {
if (output_redir != LUA_NOREF) {
#if defined(CONFIG_ESP_CONSOLE_NONE)
fclose(stdout);
#else
// reopen the console device onto the stdout stream
freopen(default_console_name(), "w", stdout);
#endif
ESP_ERROR_CHECK(esp_vfs_unregister(VFS_REDIR));
luaX_unset_ref(L, &output_redir);
}
}
return 0;
}
/* node.stripdebug([level[, function]]). 
* level: 1 don't discard debug
* 2 discard Local and Upvalue debug info
* 3 discard Local, Upvalue and lineno debug info.
* function: Function to be stripped as per setfenv except 0 not permitted.
* If no arguments then the current default setting is returned.
* If function is omitted, this is the default setting for future compiles
* The function returns an estimated integer count of the bytes stripped.
*/
static int node_stripdebug (lua_State *L) {
int n = lua_gettop(L);
int strip = 0;
lua_settop(L, 2);
if (!lua_isnil(L, 1)) {
strip = lua_tointeger(L, 1);
luaL_argcheck(L, strip > 0 && strip < 4, 1, "Invalid strip level");
}
if (lua_isnumber(L, 2)) {
/* Use debug interface to replace stack level by corresponding function */
int scope = luaL_checkinteger(L, 2);
if (scope > 0) {
lua_Debug ar;
lua_pop(L, 1);
if (lua_getstack(L, scope, &ar)) {
lua_getinfo(L, "f", &ar); /* put function at [2] (ToS) */
}
}
}
int isfunc = lua_isfunction(L, 2);
luaL_argcheck(L, n < 2 || isfunc, 2, "not a valid function");
/* return result of lua_stripdebug, adding 1 if this is get/set level) */
lua_pushinteger(L, lua_stripdebug(L, strip - 1) + (isfunc ? 0 : 1));
return 1;
}
#if defined(CONFIG_LUA_VERSION_51)
// Lua: node.egc.setmode( mode, [param])
// where the mode is one of the node.egc constants NOT_ACTIVE , ON_ALLOC_FAILURE,
// ON_MEM_LIMIT, ALWAYS. In the case of ON_MEM_LIMIT an integer parameter is reqired
// See legc.h and lecg.c.
static int node_egc_setmode(lua_State* L) {
unsigned mode = luaL_checkinteger(L, 1);
unsigned limit = luaL_optinteger (L, 2, 0);
luaL_argcheck(L, mode <= (EGC_ON_ALLOC_FAILURE | EGC_ON_MEM_LIMIT | EGC_ALWAYS), 1, "invalid mode");
luaL_argcheck(L, !(mode & EGC_ON_MEM_LIMIT) || limit>0, 1, "limit must be non-zero");
lua_setegcmode( L, mode, limit );
return 0;
}
#endif
static int writer(lua_State* L, const void* p, size_t size, void* u)
{
UNUSED(L);
FILE *file = (FILE *)u;
if (!file)
return 1;
if (size != 0 && (fwrite((const char *)p, size, 1, file) != 1) )
return 1;
return 0;
}
#define toproto(L,i) (clvalue(L->top+(i))->l.p)
// Lua: compile(filename) -- compile lua file into lua bytecode, and save to .lc
static int node_compile( lua_State* L )
{
Proto* f;
FILE *file = 0;
size_t len;
const char *fname = luaL_checklstring( L, 1, &len );
char *output = luaM_malloc( L, len+1 );
strcpy(output, fname);
// check here that filename end with ".lua".
if (len < 4 || (strcmp( output + len - 4, ".lua") != 0) ) {
luaM_free( L, output );
return luaL_error(L, "not a .lua file");
}
output[strlen(output) - 2] = 'c';
output[strlen(output) - 1] = '\0';
NODE_DBG(output);
NODE_DBG("\n");
if (luaL_loadfile(L, fname) != 0) {
luaM_free( L, output );
return luaL_error(L, lua_tostring(L, -1));
}
f = toproto(L, -1);
int stripping = 1; /* strip debug information? */
file = fopen(output, "w+");
if (!file)
{
luaM_free( L, output );
return luaL_error(L, "cannot open/write to file");
}
lua_lock(L);
int result = luaU_dump(L, f, writer, file, stripping);
lua_unlock(L);
if (fflush(file) != 0) {
// overwrite Lua error, like writer() does in case of a file io error
result = 1;
}
fclose(file);
luaM_free( L, output );
if (result == LUA_ERR_CC_INTOVERFLOW) {
return luaL_error(L, "value too big or small for target integer type");
}
if (result == LUA_ERR_CC_NOTINTEGER) {
return luaL_error(L, "target lua_Number is integral but fractional value found");
}
if (result == 1) { // result status generated by writer() or fs_flush() fail
return luaL_error(L, "writing to file failed");
}
return 0;
}
// Task callback handler for node.task.post()
static task_handle_t do_node_task_handle;
static void do_node_task (task_param_t task_fn_ref, task_prio_t prio)
{
lua_State* L = lua_getstate();
lua_rawgeti(L, LUA_REGISTRYINDEX, (int)task_fn_ref);
luaL_unref(L, LUA_REGISTRYINDEX, (int)task_fn_ref);
lua_pushinteger(L, prio);
luaL_pcallx(L, 1, 0);
}
// Lua: node.task.post([priority],task_cb) -- schedule a task for execution next
static int node_task_post( lua_State* L )
{
int n = 1, Ltype = lua_type(L, 1);
unsigned priority = TASK_PRIORITY_MEDIUM;
if (Ltype == LUA_TNUMBER) {
priority = (unsigned) luaL_checkint(L, 1);
luaL_argcheck(L, priority <= TASK_PRIORITY_HIGH, 1, "invalid priority");
Ltype = lua_type(L, ++n);
}
luaL_argcheck(L, Ltype == LUA_TFUNCTION, n, "invalid function");
lua_pushvalue(L, n);
int task_fn_ref = luaL_ref(L, LUA_REGISTRYINDEX);
if (!do_node_task_handle) // bind the task handle to do_node_task on 1st call
do_node_task_handle = task_get_id(do_node_task);
if(!task_post(priority, do_node_task_handle, (task_param_t)task_fn_ref)) {
luaL_unref(L, LUA_REGISTRYINDEX, task_fn_ref);
luaL_error(L, "Task queue overflow. Task not posted");
}
return 0;
}
static int node_osprint (lua_State *L)
{
if (lua_toboolean (L, 1))
esp_log_level_set ("*", CONFIG_LOG_DEFAULT_LEVEL);
else
esp_log_level_set ("*", ESP_LOG_NONE);
return 0;
}
static int node_uptime(lua_State *L)
{
uint64_t now = esp_timer_get_time();
#ifdef LUA_NUMBER_INTEGRAL
lua_pushinteger(L, (lua_Integer)(now & 0x7FFFFFFF));
lua_pushinteger(L, (lua_Integer)((now >> 31) & 0x7FFFFFFF));
#else
// The largest double that doesn't lose whole-number precision is 2^53, so the
// mask we apply is (2^53)-1 which is 0x1FFFFFFFFFFFFF. In practice this is
// long enough the timer should never wrap, but it interesting nonetheless.
lua_pushnumber(L, (lua_Number)(now & 0x1FFFFFFFFFFFFFull));
lua_pushinteger(L, (lua_Integer)(now >> 53));
#endif
return 2;
}
// Lua: n = node.LFS.reload(lfsimage)
static int node_lfsreload (lua_State *L) {
lua_settop(L, 1);
luaL_lfsreload(L);
return 1;
}
// Lua: n = node.flashreload(lfsimage)
static int node_lfsreload_deprecated (lua_State *L) {
platform_print_deprecation_note("node.flashreload", "soon. Use node.LFS interface instead");
return node_lfsreload (L);
}
// Lua: n = node.flashindex(module)
// Lua: n = node.LFS.get(module)
static int node_lfsindex (lua_State *L) {
lua_settop(L, 1);
luaL_pushlfsmodule(L);
return 1;
}
// Lua: n = node.LFS.list([option])
// Note that option is ignored in this release
static int node_lfslist (lua_State *L) {
lua_settop(L, 1);
luaL_pushlfsmodules(L);
if (lua_istable(L, -1) && lua_getglobal(L, "table") == LUA_TTABLE) {
lua_getfield(L, -1, "sort");
lua_remove(L, -2); /* remove table table */
lua_pushvalue(L, -2); /* dup array of modules ref to ToS */
lua_call(L, 1, 0);
}
return 1;
}
//== node.LFS Table emulator ==============================================//
static void get_lfs_config ( lua_State* L ){
int config[5];
lua_getlfsconfig(L, config);
lua_createtable(L, 0, 4);
add_int_field(L, config[0], "lfs_mapped");
add_int_field(L, config[1], "lfs_base");
add_int_field(L, config[2], "lfs_size");
add_int_field(L, config[3], "lfs_used");
}
static int node_lfs_func (lua_State* L) { /*T[1] = LFS, T[2] = fieldname */
lua_remove(L, 1);
lua_settop(L, 1);
const char *name = lua_tostring(L, 1);
if (!name) {
lua_pushnil(L);
} else if (!strcmp(name, "config")) {
get_lfs_config(L);
} else if (!strcmp(name, "time")) {
luaL_pushlfsdts(L);
} else {
luaL_pushlfsmodule(L);
}
return 1;
}
LROT_BEGIN(node_lfs_meta, NULL, LROT_MASK_INDEX)
LROT_FUNCENTRY( __index, node_lfs_func)
LROT_END(node_lfs_meta, NULL, LROT_MASK_INDEX)
LROT_BEGIN(node_lfs, LROT_TABLEREF(node_lfs_meta), 0)
LROT_FUNCENTRY( list, node_lfslist)
LROT_FUNCENTRY( get, node_lfsindex)
LROT_FUNCENTRY( reload, node_lfsreload )
LROT_END(node_lfs, LROT_TABLEREF(node_lfs_meta), 0)
#if defined(CONFIG_LUA_VERSION_51)
LROT_BEGIN(node_egc, NULL, 0)
LROT_FUNCENTRY( setmode, node_egc_setmode )
LROT_NUMENTRY ( NOT_ACTIVE, EGC_NOT_ACTIVE )
LROT_NUMENTRY ( ON_ALLOC_FAILURE, EGC_ON_ALLOC_FAILURE )
LROT_NUMENTRY ( ON_MEM_LIMIT, EGC_ON_MEM_LIMIT )
LROT_NUMENTRY ( ALWAYS, EGC_ALWAYS )
LROT_END(node_egc, NULL, 0)
#endif
LROT_BEGIN(node_task, NULL, 0)
LROT_FUNCENTRY( post, node_task_post )
LROT_NUMENTRY ( LOW_PRIORITY, TASK_PRIORITY_LOW )
LROT_NUMENTRY ( MEDIUM_PRIORITY, TASK_PRIORITY_MEDIUM )
LROT_NUMENTRY ( HIGH_PRIORITY, TASK_PRIORITY_HIGH )
LROT_END(node_task, NULL, 0)
// Wakup reasons
LROT_BEGIN(node_wakeup, NULL, 0)
LROT_NUMENTRY ( GPIO, ESP_SLEEP_WAKEUP_GPIO )
LROT_NUMENTRY ( TIMER, ESP_SLEEP_WAKEUP_TIMER )
LROT_NUMENTRY ( TOUCHPAD, ESP_SLEEP_WAKEUP_TOUCHPAD )
LROT_NUMENTRY ( UART, ESP_SLEEP_WAKEUP_UART )
LROT_NUMENTRY ( ULP, ESP_SLEEP_WAKEUP_ULP )
LROT_END(node_wakeup, NULL, 0)
LROT_BEGIN(node, NULL, 0)
LROT_FUNCENTRY( bootreason, node_bootreason )
#if defined(CONFIG_IDF_TARGET_ESP32)
LROT_FUNCENTRY( chipid, node_chipid )
#endif
LROT_FUNCENTRY( chipmodel, node_chipmodel )
LROT_FUNCENTRY( compile, node_compile )
LROT_FUNCENTRY( dsleep, node_dsleep )
#if defined(CONFIG_LUA_VERSION_51)
LROT_TABENTRY ( egc, node_egc )
#endif
LROT_FUNCENTRY( flashreload,node_lfsreload_deprecated )
LROT_FUNCENTRY( flashindex, node_lfsindex )
LROT_TABENTRY( LFS, node_lfs )
LROT_FUNCENTRY( heap, node_heap )
LROT_FUNCENTRY( info, node_info )
LROT_FUNCENTRY( input, node_input )
LROT_FUNCENTRY( output, node_output )
LROT_FUNCENTRY( osprint, node_osprint )
LROT_FUNCENTRY( restart, node_restart )
LROT_FUNCENTRY( setonerror, node_setonerror )
LROT_FUNCENTRY( sleep, node_sleep )
LROT_FUNCENTRY( stripdebug, node_stripdebug )
LROT_TABENTRY ( task, node_task )
LROT_FUNCENTRY( uptime, node_uptime )
LROT_TABENTRY ( wakeup, node_wakeup )
LROT_END(node, NULL, 0)
int luaopen_node(lua_State *L)
{
output_task = task_get_id(redir_output);
lua_settop(L, 0);
return node_setonerror(L); /* set default onerror action */
}
NODEMCU_MODULE(NODE, "node", node, luaopen_node);
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