1 files changed, 97 insertions, 0 deletions
diff --git a/core/comm/HardwareSerial.cpp b/core/comm/HardwareSerial.cpp
new file mode 100644
index 0000000..04d8d18
--- /dev/null
+++ b/core/comm/HardwareSerial.cpp
@@ -0,0 +1,97 @@
+/* *****************************************************************************
+ *  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/>.
+ *
+ *  Created: 12/19/09 05:15:24 EST
+ *  Copyright (c) 2009 Perry L. Hung. All rights reserved.
+ *
+ * ****************************************************************************/
+
+/**
+ *  @file HardwareSerial.cpp
+ *
+ *  @brief Wiring-like serial api
+ */
+
+#include "wiring.h"
+#include "HardwareSerial.h"
+#include "usart.h"
+#include "gpio.h"
+#include "timers.h"
+
+#define USART1_TX_PORT             GPIOA_BASE
+#define USART1_TX_PIN              9
+#define USART1_RX_PORT             GPIOA_BASE
+#define USART1_RX_PIN              10
+
+#define USART2_TX_PORT             GPIOA_BASE
+#define USART2_TX_PIN              2
+#define USART2_RX_PORT             GPIOA_BASE
+#define USART2_RX_PIN              3
+
+#define USART3_TX_PORT             GPIOB_BASE
+#define USART3_TX_PIN              10
+#define USART3_RX_PORT             GPIOB_BASE
+#define USART3_RX_PIN              11
+
+HardwareSerial::HardwareSerial(uint8_t usartNum) {
+    ASSERT(usartNum == 1 ||
+           usartNum == 2 ||
+           usartNum == 3);
+    this->usartNum = usartNum;
+}
+
+uint8_t HardwareSerial::read(void) {
+    return usart_getc(usartNum);
+}
+
+uint32 HardwareSerial::available(void) {
+
+    return usart_data_available(usartNum);
+}
+
+void HardwareSerial::write(unsigned char ch) {
+    usart_putc(usartNum, ch);
+}
+
+void HardwareSerial::begin(uint32_t baud) {
+    ASSERT(!(baud > USART_MAX_BAUD));
+
+    /* Set appropriate pin modes  */
+    switch (usartNum) {
+    case 1:
+        gpio_set_mode(USART1_TX_PORT, USART1_TX_PIN, GPIO_MODE_AF_OUTPUT_PP);
+        gpio_set_mode(USART1_RX_PORT, USART1_RX_PIN, GPIO_MODE_INPUT_FLOATING);
+        /* Turn off any pwm  */
+        timers_disable_channel(1, 2);
+        break;
+    case 2:
+        gpio_set_mode(USART2_TX_PORT, USART2_TX_PIN, GPIO_MODE_AF_OUTPUT_PP);
+        gpio_set_mode(USART2_RX_PORT, USART2_RX_PIN, GPIO_MODE_INPUT_FLOATING);
+        /* Turn off any pwm  */
+        timers_disable_channel(2, 3);
+        break;
+    case 3:
+        gpio_set_mode(USART3_TX_PORT, USART3_TX_PIN, GPIO_MODE_AF_OUTPUT_PP);
+        gpio_set_mode(USART3_RX_PORT, USART3_RX_PIN, GPIO_MODE_INPUT_FLOATING);
+        break;
+    default:
+        ASSERT(0);
+    }
+
+    usart_init(usartNum, baud);
+}
+
+HardwareSerial Serial1(1);
+HardwareSerial Serial2(2);
+HardwareSerial Serial3(3);