Ajout FishPeper

OpenSky/arch/rasp/hal_ppm.c

@@ -0,0 +1,71 @@
+/*
+    Copyright 2017 fishpepper <AT> gmail.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http:// www.gnu.org/licenses/>.
+
+   author: fishpepper <AT> gmail.com
+*/
+
+#include "hal_ppm.h"
+#include "hal_io.h"
+#include "hal_timeout.h"
+#include "ppm.h"
+#include "wdt.h"
+#include "led.h"
+
+#if SBUS_ENABLED == 1
+void hal_ppm_init(void) {
+}
+void hal_ppm_tick() {
+}
+#else
+
+static int state = 1;
+static int failsafe = 0;
+
+void hal_ppm_init(void) {
+    hal_io_set_ppm(state);
+}
+
+void hal_ppm_failsafe_enter(void) {
+    failsafe = 1;
+}
+
+void hal_ppm_failsafe_exit(void) {
+    failsafe = 0;
+}
+
+void hal_ppm_update_cvalue(int us) {
+    // Keep singal up, until the last 200ms of the count.
+    hal_timeout_add_ppm(us - HAL_PPM_US_TO_TICKCOUNT(200));
+}
+
+void hal_ppm_tick() {
+    if (state == 1) {
+        state = 0;
+        if (!failsafe)
+            hal_io_set_ppm(state);
+        // Then lower the signal for another 200ms..
+        hal_timeout_add_ppm(HAL_PPM_US_TO_TICKCOUNT(200));
+    } else {
+        state = 1;
+        if (!failsafe)
+            hal_io_set_ppm(state);
+
+        // Call the code, that will call hal_ppm_update_cvalue back to us.
+        hal_ppm_irq_callback();
+    }
+}
+
+#endif  // SBUS_ENABLED