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55 lines
1.6 KiB
55 lines
1.6 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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#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 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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} else {
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if (resetCnt>=6) { //3 sec pressed
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wifi_station_disconnect();
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wifi_set_opmode(STATIONAP_MODE); //reset to AP+STA mode
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info("Reset to AP mode from GPIO0, Restarting system...");
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system_restart();
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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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