9 files changed, 579 insertions, 0 deletions
diff --git a/src/common/GPIO/analog.c b/src/common/GPIO/analog.c
new file mode 100644
index 0000000..b6f75a6
--- /dev/null
+++ b/src/common/GPIO/analog.c
@@ -0,0 +1,69 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Matthias P. Braendli, Maximilien Cuony
+ *
+ * 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 "GPIO/analog.h"
+
+#define SUPPLY_HISTORY_LEN 10
+
+static float supply_history[SUPPLY_HISTORY_LEN];
+static int supply_history_ix = 0;
+static int supply_history_ready = 0;
+static int last_qrp = 0;
+
+// Return 1 if analog supply is too low
+int analog_supply_too_low(void)
+{
+
+    // Hysteresis:
+    // Lower voltage 12.5V
+    // High  voltage 13V
+    const float measure = analog_measure_12v();
+
+    supply_history[supply_history_ix] = measure;
+    supply_history_ix++;
+    if (supply_history_ix >= SUPPLY_HISTORY_LEN) {
+        supply_history_ix = 0;
+        supply_history_ready = 1;
+    }
+
+    if (supply_history_ready) {
+        float sum = 0.0f;
+        for (int i = 0; i < SUPPLY_HISTORY_LEN; i++) {
+            sum += supply_history[i];
+        }
+        int above_lower_limit = (sum > 12.5f * SUPPLY_HISTORY_LEN);
+        int above_upper_limit = (sum > 13.0f * SUPPLY_HISTORY_LEN);
+
+        if (!above_lower_limit) {
+            last_qrp = 1;
+        }
+        else if (above_upper_limit) {
+            last_qrp = 0;
+        }
+
+        return last_qrp;
+    }
+
+    return 0;
+}
diff --git a/src/common/GPIO/analog.h b/src/common/GPIO/analog.h
new file mode 100644
index 0000000..ddc19ac
--- /dev/null
+++ b/src/common/GPIO/analog.h
@@ -0,0 +1,50 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Matthias P. Braendli, Maximilien Cuony
+ *
+ * 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.
+*/
+
+#pragma once
+#include <stdint.h>
+
+void analog_init(void);
+
+/* Measure the 12V supply voltage, in 0.5V increments.
+ * Returns 0.0f in case of error
+ *
+ * Warning, do not run from interrupt context!
+ */
+float analog_measure_12v(void);
+
+/* Measure SWR, and return voltages in mV.
+ * Returns 0 in case of error, 1 in case of success
+ *
+ * Warning, do not run from interrupt context!
+ */
+int analog_measure_swr(int *forward_mv, int* reflected_mv);
+
+/* Keep an average of measurements, and decide if the repeater should enter
+ * QRP. Returns 1 if low power must be activated
+ *
+ * Warning, do not run from interrupt context!
+ */
+int analog_supply_too_low(void);
+
diff --git a/src/common/GPIO/i2c.h b/src/common/GPIO/i2c.h
new file mode 100644
index 0000000..69a4ad2
--- /dev/null
+++ b/src/common/GPIO/i2c.h
@@ -0,0 +1,53 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Matthias P. Braendli
+ *
+ * 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.
+*/
+
+#ifndef __I2C_H_
+#define __I2C_H_
+
+#include <stdint.h>
+
+/* Initialise I2C on the board for both the audio codec and the GPS receiver */
+void i2c_init(void);
+
+/* Do an I2C write, return 1 on success, 0 on failure */
+int i2c_write(uint8_t device, const uint8_t *txbuf, int len);
+
+/* Do an I2C read into rxbuf.
+ * Returns number of bytes received, or 0 in case of failure
+ */
+int i2c_read(uint8_t device, uint8_t *rxbuf, int len);
+
+/* Do an I2C write for the address, and then a read into rxbuf.
+ * Returns number of bytes received, or 0 in case of failure
+ */
+int i2c_read_from(uint8_t device, uint8_t address, uint8_t *rxbuf, int len);
+
+/* Start an I2C transaction, keeping exclusive access to I2C */
+void i2c_transaction_start(void);
+
+/* End an I2C transaction, unlocking the exclusive access to I2C */
+void i2c_transaction_end(void);
+
+#endif // __I2C_H_
+
diff --git a/src/common/GPIO/leds.h b/src/common/GPIO/leds.h
new file mode 100644
index 0000000..70c57d2
--- /dev/null
+++ b/src/common/GPIO/leds.h
@@ -0,0 +1,9 @@
+#pragma once
+
+#define LED_GREEN 1
+#define LED_ORANGE 2
+#define LED_RED 3
+#define LED_BLUE 4
+
+void leds_turn_off(int);
+void leds_turn_on(int);
diff --git a/src/common/GPIO/pio.h b/src/common/GPIO/pio.h
new file mode 100644
index 0000000..e118fc8
--- /dev/null
+++ b/src/common/GPIO/pio.h
@@ -0,0 +1,47 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Matthias P. Braendli
+ *
+ * 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.
+*/
+
+#ifndef _PIO_H_
+#define _PIO_H_
+
+#include <stddef.h>
+#include <stdint.h>
+#include "Core/fsm.h"
+
+void pio_init(void);
+
+void pio_set_tx(int on);
+void pio_set_mod_off(int mod_off);
+void pio_set_qrp(int on);
+void pio_set_gps_epps(int on);
+void pio_set_fax(int on);
+void pio_set_det_1750(int on);
+void pio_set_sq2(int on);
+
+void pio_set_fsm_signals(struct fsm_input_signals_t* sig);
+
+int pio_read_button(void);
+
+#endif // _PIO_H_
+
diff --git a/src/common/GPIO/temperature.c b/src/common/GPIO/temperature.c
new file mode 100644
index 0000000..f9e43cb
--- /dev/null
+++ b/src/common/GPIO/temperature.c
@@ -0,0 +1,62 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Matthias P. Braendli, Maximilien Cuony
+ *
+ * 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 "FreeRTOS.h"
+#include "FreeRTOSConfig.h"
+#include "task.h"
+#include "Core/common.h"
+#include "GPIO/temperature.h"
+
+
+float _temperature_last_value;
+int _temperature_valid;
+
+
+void temperature_task(void *pvParameters);
+
+
+void temperature_init() {
+
+    xTaskCreate(
+        temperature_task,
+        "TaskTemperature",
+        4*configMINIMAL_STACK_SIZE,
+        (void*) NULL,
+        tskIDLE_PRIORITY + 2UL,
+        NULL);
+}
+
+// Return the current temperature
+float temperature_get() {
+    if (_temperature_valid) {
+        return _temperature_last_value;
+    } else {
+        return 0.0f;
+    }
+}
+
+// Return 1 if the temperature is valid
+int temperature_valid() {
+    return _temperature_valid;
+}
diff --git a/src/common/GPIO/temperature.h b/src/common/GPIO/temperature.h
new file mode 100644
index 0000000..f49cc26
--- /dev/null
+++ b/src/common/GPIO/temperature.h
@@ -0,0 +1,40 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Matthias P. Braendli, Maximilien Cuony
+ *
+ * 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.
+*/
+
+#pragma once
+#include <stdint.h>
+
+extern float _temperature_last_value;
+extern int _temperature_valid;
+
+// Setup communication and temperature
+void temperature_init(void);
+
+// Return 1 if the temperature is valid
+int temperature_valid(void);
+
+// Get current temperature
+float temperature_get(void);
+
+void temperature_task(void *);
diff --git a/src/common/GPIO/usart.c b/src/common/GPIO/usart.c
new file mode 100644
index 0000000..8bcd80a
--- /dev/null
+++ b/src/common/GPIO/usart.c
@@ -0,0 +1,171 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Matthias P. Braendli, Maximilien Cuony
+ *
+ * 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 <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <inttypes.h>
+#include "Core/common.h"
+#include "GPIO/usart.h"
+#include "GPIO/analog.h"
+#include "FreeRTOS.h"
+#include "task.h"
+#include "queue.h"
+
+// The ISR writes into this buffer
+static char nmea_sentence[MAX_NMEA_SENTENCE_LEN];
+static int  nmea_sentence_last_written = 0;
+
+
+// Once a completed NMEA sentence is received in the ISR,
+// it is appended to this queue
+static QueueHandle_t usart_nmea_queue;
+
+void usart_gps_init() {
+    usart_nmea_queue = xQueueCreate(15, MAX_NMEA_SENTENCE_LEN);
+    if (usart_nmea_queue == 0) {
+        while(1); /* fatal error */
+    }
+
+    usart_gps_specific_init();
+
+}
+
+void usart_gps_puts(const char* str) {
+    vTaskSuspendAll();
+    usart_puts(USART3, str);
+    xTaskResumeAll();
+}
+
+#define MAX_MSG_LEN 80
+static char usart_debug_message[MAX_MSG_LEN];
+
+void usart_debug_timestamp() {
+    // Don't call printf here, to reduce stack usage
+    uint64_t now = timestamp_now();
+    if (now == 0) {
+        usart_puts(USART2, "[0] ");
+    }
+    else {
+        char ts_str[64];
+        int i = 63;
+
+        ts_str[i--] = '\0';
+        ts_str[i--] = ' ';
+        ts_str[i--] = ']';
+
+        while (now > 0 && i >= 0) {
+            ts_str[i--] = '0' + (now % 10);
+            now /= 10;
+        }
+        ts_str[i] = '[';
+
+        usart_puts(USART2, &ts_str[i]);
+    }
+}
+
+void usart_debug(const char *format, ...) {
+    va_list list;
+    va_start(list, format);
+    vsnprintf(usart_debug_message, MAX_MSG_LEN-1, format, list);
+
+    vTaskSuspendAll();
+    usart_debug_timestamp();
+    usart_puts(USART2, usart_debug_message);
+    xTaskResumeAll();
+
+    va_end(list);
+}
+
+void usart_debug_puts(const char* str) {
+#ifdef SIMULATOR
+    fprintf(stderr, "DEBUG: %s", str);
+#endif
+    vTaskSuspendAll();
+    usart_debug_timestamp();
+    usart_puts(USART2, str);
+    xTaskResumeAll();
+}
+
+void usart_debug_puts_header(const char* hdr, const char* str) {
+    vTaskSuspendAll();
+    usart_debug_timestamp();
+    usart_puts(USART2, hdr);
+    usart_puts(USART2, str);
+    usart_puts(USART2, "\r\n");
+    xTaskResumeAll();
+}
+
+int usart_get_nmea_sentence(char* nmea) {
+    return xQueueReceive(usart_nmea_queue, nmea, portMAX_DELAY);
+}
+
+
+static void usart_clear_nmea_buffer(void) {
+    for (int i = 0; i < MAX_NMEA_SENTENCE_LEN; i++) {
+        nmea_sentence[i] = '\0';
+    }
+    nmea_sentence_last_written = 0;
+}
+
+void usart_process_char(char c) {
+// Warning: running in interrupt context
+    usart_debug("Unknown command %c\r\n", c);
+}
+
+void usart_gps_process_char(char c)
+{
+    BaseType_t require_context_switch = pdFALSE;
+
+    if (nmea_sentence_last_written == 0) {
+        if (c == '$') {
+            // Likely new start of sentence
+            nmea_sentence[nmea_sentence_last_written] = c;
+            nmea_sentence_last_written++;
+        }
+    }
+    else if (nmea_sentence_last_written < MAX_NMEA_SENTENCE_LEN) {
+        nmea_sentence[nmea_sentence_last_written] = c;
+        nmea_sentence_last_written++;
+
+        if (c == '\n') {
+            int success = xQueueSendToBackFromISR(
+                    usart_nmea_queue,
+                    nmea_sentence,
+                    &require_context_switch);
+
+            if (success == pdFALSE) {
+                trigger_fault(FAULT_SOURCE_USART);
+            }
+
+            usart_clear_nmea_buffer();
+        }
+    }
+    else {
+        // Buffer overrun without a meaningful NMEA message.
+        usart_clear_nmea_buffer();
+    }
+
+    portYIELD_FROM_ISR(require_context_switch);
+}
diff --git a/src/common/GPIO/usart.h b/src/common/GPIO/usart.h
new file mode 100644
index 0000000..681d86f
--- /dev/null
+++ b/src/common/GPIO/usart.h
@@ -0,0 +1,78 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2016 Matthias P. Braendli, Maximilien Cuony
+ *
+ * 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.
+*/
+
+/* This handles the USART 3 to the GPS receiver, and fills a queue of
+ * NMEA messages.
+ *
+ * It also handles the debug USART 2 and allows sending messages to the PC.
+ */
+
+#ifndef __USART_H_
+#define __USART_H_
+
+#ifdef STM32F4XX
+#  include <stm32f4xx_usart.h>
+#else
+#  define USART_TypeDef int
+#  define USART2 ((USART_TypeDef*)2)
+#  define USART3 ((USART_TypeDef*)3)
+#endif
+
+#define MAX_NMEA_SENTENCE_LEN 256
+
+// Initialise USART2 for PC debugging
+void usart_init(void);
+
+// Initialise USART3 for GPS and NMEA queue
+// Needs running scheduler
+void usart_gps_init(void);
+
+// Take GPS out of RESET
+void usart_gps_remove_reset(void);
+
+// Send the str to the GPS receiver
+void usart_gps_puts(const char* str);
+
+// a printf to send data to the PC
+void usart_debug(const char *format, ...);
+
+// Send a string to the PC
+void usart_debug_puts(const char* str);
+void usart_debug_puts_header(const char* hdr, const char* str);
+
+// Get a MAX_NMEA_SENTENCE_LEN sized NMEA sentence
+// Return 1 on success
+int usart_get_nmea_sentence(char* nmea);
+
+void usart_debug_timestamp(void);
+
+void usart_gps_specific_init(void);
+
+void usart_process_char(char);
+void usart_gps_process_char(char);
+
+void usart_puts(USART_TypeDef*, const char*);
+
+#endif //__USART_H_
+