Update Files

Kinc/Sources/kinc/libs/drivers/led/led-gpio.c

@@ -0,0 +1,120 @@
+/*
+ * Generic GPIO led
+ *
+ * Copyright (C) 2019 - 2020 Andy Green <andy@warmcat.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "private-lib-core.h"
+#include "drivers/led/private-lib-drivers-led.h"
+
+#if defined(LWS_PLAT_TIMER_CB)
+static LWS_PLAT_TIMER_CB(lws_led_timer_cb, th)
+{
+	lws_led_state_t *lcs = LWS_PLAT_TIMER_CB_GET_OPAQUE(th);
+
+	lws_seq_timer_handle(lcs);
+}
+#endif
+
+struct lws_led_state *
+lws_led_gpio_create(const lws_led_ops_t *led_ops)
+{
+	lws_led_gpio_controller_t *lgc = (lws_led_gpio_controller_t *)led_ops;
+	/*
+	 * We allocate the main state object, and a 3 x seq dynamic footprint
+	 * for each led, since it may be sequencing the transition between two
+	 * other sequences.
+	 */
+
+	lws_led_state_t *lcs = lws_zalloc(sizeof(lws_led_state_t) +
+				(lgc->count_leds * sizeof(lws_led_state_chs_t)),
+				__func__);
+	int n;
+
+	if (!lcs)
+		return NULL;
+
+	lcs->controller = lgc;
+
+#if defined(LWS_PLAT_TIMER_CREATE)
+	lcs->timer = LWS_PLAT_TIMER_CREATE("leds",
+			LWS_LED_SEQUENCER_UPDATE_INTERVAL_MS, 1, lcs,
+				  (TimerCallbackFunction_t)lws_led_timer_cb);
+	if (!lcs->timer)
+		return NULL;
+#endif
+
+	for (n = 0; n < lgc->count_leds; n++) {
+		const lws_led_gpio_map_t *map = &lgc->led_map[n];
+
+		if (map->pwm_ops) {
+			lgc->gpio_ops->mode(map->gpio, LWSGGPIO_FL_READ);
+			lgc->gpio_ops->set(map->gpio, 0);
+		} else {
+			lgc->gpio_ops->mode(map->gpio, LWSGGPIO_FL_WRITE);
+			lgc->gpio_ops->set(map->gpio,
+					   !lgc->led_map[n].active_level);
+		}
+	}
+
+	return lcs;
+}
+
+void
+lws_led_gpio_destroy(struct lws_led_state *lcs)
+{
+#if defined(LWS_PLAT_TIMER_DELETE)
+	LWS_PLAT_TIMER_DELETE(lcs->timer);
+#endif
+	lws_free(lcs);
+}
+
+int
+lws_led_gpio_lookup(const struct lws_led_ops *lo, const char *name)
+{
+	const lws_led_gpio_controller_t *lgc = (lws_led_gpio_controller_t *)lo;
+	int n;
+
+	for (n = 0; n < lgc->count_leds; n++)
+		if (!strcmp(name, lgc->led_map[n].name))
+			return n;
+
+	return -1;
+}
+
+void
+lws_led_gpio_intensity(const struct lws_led_ops *lo, const char *name,
+		       lws_led_intensity_t inten)
+{
+	const lws_led_gpio_controller_t *lgc = (lws_led_gpio_controller_t *)lo;
+	int idx = lws_led_gpio_lookup(lo, name);
+	const lws_led_gpio_map_t *map;
+
+	if (idx < 0)
+		return;
+
+	map = &lgc->led_map[idx];
+
+	if (map->pwm_ops)
+		map->pwm_ops->intensity(map->pwm_ops, map->gpio, inten);
+	else
+		lgc->gpio_ops->set(map->gpio,
+				(!!map->active_level) ^ !(inten & 0x8000));
+}