From decbbc506baf7f6d0918b42a40ce9e115c34559a Mon Sep 17 00:00:00 2001
From: Andy Green <andy@warmcat.com>
Date: Sun, 21 May 2017 07:38:49 +0800
Subject: [PATCH] esp32: debounced button events
---
lib/lws-plat-esp32.c | 52 +++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 51 insertions(+), 1 deletion(-)
diff --git a/lib/lws-plat-esp32.c b/lib/lws-plat-esp32.c
index 12d603f5..cd631f80 100644
--- a/lib/lws-plat-esp32.c
+++ b/lib/lws-plat-esp32.c
@@ -640,12 +640,15 @@ static const char *gapss_str[] = {
};
static romfs_t lws_esp32_romfs;
-static TimerHandle_t leds_timer, scan_timer
+static TimerHandle_t leds_timer, scan_timer, debounce_timer
#if !defined(CONFIG_LWS_IS_FACTORY_APPLICATION)
, mdns_timer
#endif
;
static enum lws_gapss gapss = LWS_GAPSS_INITIAL;
+static char bdown;
+
+#define GPIO_SW 14
struct esp32_file {
const struct inode *i;
@@ -785,6 +788,29 @@ again:
return 0;
}
+void __attribute__(( weak ))
+lws_esp32_button(int down)
+{
+}
+
+void IRAM_ATTR
+gpio_irq(void *arg)
+{
+ bdown ^= 1;
+ gpio_set_intr_type(GPIO_SW, GPIO_INTR_DISABLE);
+ xTimerStart(debounce_timer, 0);
+
+ lws_esp32_button(bdown);
+}
+
+static void lws_esp32_debounce_timer_cb(TimerHandle_t th)
+{
+ if (bdown)
+ gpio_set_intr_type(GPIO_SW, GPIO_INTR_POSEDGE);
+ else
+ gpio_set_intr_type(GPIO_SW, GPIO_INTR_NEGEDGE);
+}
+
static void lws_esp32_mdns_timer_cb(TimerHandle_t th)
{
uint64_t now = time_in_microseconds();
@@ -1353,6 +1379,7 @@ lws_esp32_wlan_nvs_get(int retry)
return lws_esp32_force_ap;
}
+
void
lws_esp32_wlan_config(void)
{
@@ -1362,6 +1389,7 @@ lws_esp32_wlan_config(void)
.speed_mode = LEDC_HIGH_SPEED_MODE,
.timer_num = LEDC_TIMER_0
};
+ int n;
ledc_timer_config(&ledc_timer);
@@ -1373,6 +1401,9 @@ lws_esp32_wlan_config(void)
(TimerCallbackFunction_t)lws_esp32_leds_timer_cb);
scan_timer = xTimerCreate("lws_scan", pdMS_TO_TICKS(10000), 0, NULL,
(TimerCallbackFunction_t)lws_esp32_scan_timer_cb);
+ debounce_timer = xTimerCreate("lws_db", pdMS_TO_TICKS(100), 0, NULL,
+ (TimerCallbackFunction_t)lws_esp32_debounce_timer_cb);
+
#if !defined(CONFIG_LWS_IS_FACTORY_APPLICATION)
mdns_timer = xTimerCreate("lws_mdns", pdMS_TO_TICKS(5000), 0, NULL,
(TimerCallbackFunction_t)lws_esp32_mdns_timer_cb);
@@ -1380,6 +1411,25 @@ lws_esp32_wlan_config(void)
scan_timer_exists = 1;
xTimerStart(leds_timer, 0);
+ *(volatile uint32_t *)PERIPHS_IO_MUX_MTMS_U = FUNC_MTMS_GPIO14;
+
+ gpio_output_set(0, 0, 0, (1 << GPIO_SW));
+
+ n = gpio_install_isr_service(0);
+ if (!n) {
+ gpio_config_t c;
+
+ c.intr_type = GPIO_INTR_NEGEDGE;
+ c.mode = GPIO_MODE_INPUT;
+ c.pin_bit_mask = 1 << GPIO_SW;
+ c.pull_down_en = 0;
+ c.pull_up_en = 0;
+ gpio_config(&c);
+
+ if (gpio_isr_handler_add(GPIO_SW, gpio_irq, NULL))
+ lwsl_notice("isr handler add for 14 failed\n");
+ } else
+ lwsl_notice("failed to install gpio isr service: %d\n", n);
lws_esp32_wlan_nvs_get(0);
tcpip_adapter_init();