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/*
* 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.
*/
#include "pio.h"
#include "common.h"
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
#include "semphr.h"
void read_fsm_input_task(void *pvParameters);
struct fsm_input_signals_t pio_signals;
void pio_init()
{
GPIO_InitTypeDef GPIO_InitStructure;
// Init pio
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Pin = GPIOC_OUTPUT_PINS;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
#if GPIOC_OPENDRAIN_PINS
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_Pin = GPIOC_OPENDRAIN_PINS;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
GPIO_Init(GPIOC, &GPIO_InitStructure);
#endif
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_Pin = GPIOC_INPUT_PINS;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
xTaskCreate(
read_fsm_input_task,
"TaskPIO",
configMINIMAL_STACK_SIZE,
(void*) NULL,
tskIDLE_PRIORITY + 2UL,
NULL);
}
void pio_set_fsm_signals(struct fsm_input_signals_t* sig)
{
*sig = pio_signals;
}
void read_fsm_input_task(void *pvParameters)
{
while (1) {
pio_signals.qrp = GPIO_ReadInputDataBit(GPIOC, GPIO_PIN_QRP_n) ? 0 : 1;
pio_signals.tone_1750 = GPIO_ReadInputDataBit(GPIOC, GPIO_PIN_1750) ? 1 : 0;
pio_signals.carrier = GPIO_ReadInputDataBit(GPIOC, GPIO_PIN_RX_n) ? 0 : 1;
pio_signals.discrim_u = GPIO_ReadInputDataBit(GPIOC, GPIO_PIN_U_n) ? 0 : 1;
pio_signals.discrim_d = GPIO_ReadInputDataBit(GPIOC, GPIO_PIN_D_n) ? 0 : 1;
vTaskDelay(100 / portTICK_RATE_MS);
}
}
void pio_set_tx(int on)
{
// Led is active high, TX_n is inverted logic
if (on) {
GPIO_SetBits(GPIOC, GPIO_PIN_LED_red | GPIO_PIN_TX);
}
else {
GPIO_ResetBits(GPIOC, GPIO_PIN_LED_red | GPIO_PIN_TX);
}
}
void pio_set_led_grn(int on)
{
if (on) {
GPIO_SetBits(GPIOC, GPIO_PIN_LED_grn);
}
else {
GPIO_ResetBits(GPIOC, GPIO_PIN_LED_grn);
}
}
void pio_set_led_yel(int on)
{
if (on) {
GPIO_SetBits(GPIOC, GPIO_PIN_LED_yel);
}
else {
GPIO_ResetBits(GPIOC, GPIO_PIN_LED_yel);
}
}
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