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114 lines
3.1 KiB
114 lines
3.1 KiB
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/*
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* ----------------------------------------------------------------------------
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* "THE BEER-WARE LICENSE" (Revision 42):
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* Jeroen Domburg <jeroen@spritesmods.com> wrote this file. As long as you retain
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* this notice you can do whatever you want with this stuff. If we meet some day,
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* and you think this stuff is worth it, you can buy me a beer in return.
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* ----------------------------------------------------------------------------
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*/
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#include <esp8266.h>
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#include "ansi_parser_callbacks.h"
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#include "wifimgr.h"
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#include "persist.h"
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#define BTNGPIO 0
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/** Set to false if GPIO0 stuck low on boot (after flashing) */
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static bool enable_ap_button = false;
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static ETSTimer resetBtntimer;
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static ETSTimer blinkyTimer;
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// Holding BOOT pin triggers AP reset, then Factory Reset.
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// Indicate that by blinking the on-board LED.
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// -> ESP-01 has at at GPIO1, ESP-01S at GPIO2. We have to use both for compatibility.
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static void ICACHE_FLASH_ATTR bootHoldIndicatorTimerCb(void *arg) {
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static bool state = true;
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if (GPIO_INPUT_GET(BTNGPIO)) {
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// if user released, shut up
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state = 1;
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}
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if (state) {
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GPIO_OUTPUT_SET(1, 1);
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GPIO_OUTPUT_SET(2, 1);
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} else {
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GPIO_OUTPUT_SET(1, 0);
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GPIO_OUTPUT_SET(2, 0);
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}
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state = !state;
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}
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static void ICACHE_FLASH_ATTR resetBtnTimerCb(void *arg) {
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static int resetCnt=0;
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if (enable_ap_button && !GPIO_INPUT_GET(BTNGPIO)) {
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resetCnt++;
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// indicating AP reset
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if (resetCnt == 2) {
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// LED pin as output (Normally UART output)
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PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0TXD_U, FUNC_GPIO1);
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PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_GPIO2);
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// LED on
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GPIO_OUTPUT_SET(1, 0);
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GPIO_OUTPUT_SET(2, 0);
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os_timer_disarm(&blinkyTimer);
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os_timer_setfn(&blinkyTimer, bootHoldIndicatorTimerCb, NULL);
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os_timer_arm(&blinkyTimer, 500, 1);
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}
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// indicating we'll perform a factory reset
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if (resetCnt == 10) {
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os_timer_disarm(&blinkyTimer);
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os_timer_setfn(&blinkyTimer, bootHoldIndicatorTimerCb, NULL);
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os_timer_arm(&blinkyTimer, 100, 1);
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}
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} else {
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// Switch LED pins back to UART mode
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PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0TXD_U, FUNC_U0TXD);
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PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_U1TXD_BK);
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if (resetCnt>=12) { //6 secs pressed - FR (timer is at 500 ms)
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info("Restoring to default settings via BOOT button!");
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persist_restore_default();
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}
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else if (resetCnt>=2) { //1 sec pressed
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info("BOOT-button triggered reset to AP mode...");
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// Enter "rescue mode".
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wificonf->opmode = STATIONAP_MODE;
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wifimgr_apply_settings();
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persist_store();
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}
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resetCnt=0;
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}
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}
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void ICACHE_FLASH_ATTR ioInit() {
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// GPIO1, GPIO2, GPIO3 - UARTs.
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PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO0_U, FUNC_GPIO0);
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gpio_output_set(0, 0, 0, (1<<BTNGPIO));
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os_timer_disarm(&resetBtntimer);
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os_timer_setfn(&resetBtntimer, resetBtnTimerCb, NULL);
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os_timer_arm(&resetBtntimer, 500, 1);
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// One way to enter AP mode - hold GPIO0 low.
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if (GPIO_INPUT_GET(BTNGPIO) == 0) {
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// starting "in BOOT mode" - do not install the AP reset timer
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warn("GPIO0 stuck low - AP reset button disabled.\n");
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} else {
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enable_ap_button = true;
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dbg("Note: Hold GPIO0 low for reset to AP mode.\n");
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}
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}
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