From 37f8ea73a8de75ab93b8732dacada83e352558cc Mon Sep 17 00:00:00 2001
From: isiora <none@example.com>
Date: Sun, 22 Oct 2017 21:48:40 +0000
Subject: Reintegrate sama5d2_dev branch

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10877 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 testhal/ATSAMA5D2/UART/main.c | 173 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 173 insertions(+)
 create mode 100644 testhal/ATSAMA5D2/UART/main.c

(limited to 'testhal/ATSAMA5D2/UART/main.c')

diff --git a/testhal/ATSAMA5D2/UART/main.c b/testhal/ATSAMA5D2/UART/main.c
new file mode 100644
index 000000000..b77c2cbbb
--- /dev/null
+++ b/testhal/ATSAMA5D2/UART/main.c
@@ -0,0 +1,173 @@
+/*
+    ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+
+#define BUFFER_SIZE 5
+
+static virtual_timer_t vt3, vt4, vt5;
+static const uint8_t message[] = "ABCDE";
+static uint8_t buffer[BUFFER_SIZE];
+
+static void led3off(void *p) {
+
+  (void)p;
+  palSetLine(LINE_LED_RED);
+}
+
+static void led4off(void *p) {
+
+  (void)p;
+  palSetLine(LINE_LED_GREEN);
+}
+
+static void led5off(void *p) {
+
+  (void)p;
+  palSetLine(LINE_LED_BLUE);
+}
+
+/*
+ * This callback is invoked when a transmission buffer has been completely
+ * read by the driver.
+ */
+static void txend1(UARTDriver *uartp) {
+
+  (void)uartp;
+}
+
+/*
+ * This callback is invoked when a transmission has physically completed.
+ */
+static void txend2(UARTDriver *uartp) {
+
+  (void)uartp;
+  palClearLine(LINE_LED_BLUE);
+  chSysLockFromISR();
+  chVTResetI(&vt5);
+  chVTSetI(&vt5, MS2ST(200), led5off, NULL);
+  chSysUnlockFromISR();
+}
+
+/*
+ * This callback is invoked on a receive error, the errors mask is passed
+ * as parameter.
+ */
+static void rxerr(UARTDriver *uartp, uartflags_t e) {
+
+  (void)uartp;
+  (void)e;
+}
+
+/*
+ * This callback is invoked when a character is received but the application
+ * was not ready to receive it, the character is passed as parameter.
+ */
+static void rxchar(UARTDriver *uartp, uint16_t c) {
+
+  (void)uartp;
+  (void)c;
+  /* Flashing the LED each time a character is received.*/
+  palClearLine(LINE_LED_GREEN);
+  chSysLockFromISR();
+  chVTResetI(&vt4);
+  chVTSetI(&vt4, MS2ST(200), led4off, NULL);
+  chSysUnlockFromISR();
+}
+
+/*
+ * This callback is invoked when a receive buffer has been completely written.
+ */
+static void rxend(UARTDriver *uartp) {
+
+  (void)uartp;
+
+  palClearLine(LINE_LED_RED);
+  chSysLockFromISR();
+  chVTResetI(&vt3);
+  chVTSetI(&vt3, MS2ST(200), led3off, NULL);
+  chSysUnlockFromISR();
+}
+
+/*
+ * UART driver configuration structure.
+ */
+static UARTConfig uart_cfg_1 = {
+  txend1,
+  txend2,
+  rxend,
+  rxchar,
+  rxerr,
+  NULL,
+  0,
+  38400,
+  0,
+  US_MR_CHRL_8_BIT | US_MR_PAR_NO
+};
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+
+  /*
+   * System initializations.
+   * - HAL initialization, this also initializes the configured device drivers
+   *   and performs the board-specific initializations.
+   * - Kernel initialization, the main() function becomes a thread and the
+   *   RTOS is active.
+   */
+
+  halInit();
+  chSysInit();
+
+  /*
+   * Activates the flexcom uart driver 0, PB28(RX) and PB29(RX) are routed to FLEXCOM0.
+   */
+  uartStart(&FUARTD0, &uart_cfg_1);
+
+  /*
+   * Activates the serial driver 0 using the driver default configuration.
+   */
+  sdStart(&SD0, NULL);
+
+  /* Redirecting  SERIAL RX on PB26 and UART0 TX on PB27. */
+  palSetGroupMode(PIOB, PAL_PORT_BIT(26) | PAL_PORT_BIT(27), 0U,
+                  PAL_SAMA_FUNC_PERIPH_C | PAL_MODE_SECURE);
+
+  /* Redirecting  UART FLEXCOM0 RX on PB28 and UART FLEXCOM0 TX on PB29. */
+  palSetGroupMode(PIOB, PAL_PORT_BIT(28) | PAL_PORT_BIT(29), 0U,
+                  PAL_SAMA_FUNC_PERIPH_C | PAL_MODE_SECURE);
+
+  /*
+   * Normal main() thread activity, in this demo it does nothing except
+   * increasing the minutes counter.
+   */
+  while (true) {
+    if (!palReadPad(PIOB, PIOB_USER_PB)) {
+  /*
+   * Starts both a transmission and a receive operations, both will be
+   * handled entirely in background.
+   */
+      uartStopReceive(&FUARTD0);
+      uartStopSend(&FUARTD0);
+      uartStartReceive(&FUARTD0, BUFFER_SIZE, buffer);
+      uartStartSend(&FUARTD0, BUFFER_SIZE, message);
+    }
+    chThdSleepMilliseconds(500);
+  }
+}
-- 
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