serial_uart.h

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/*
 * This file is part of Ninjaflight.
 *
 * Ninjaflight 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.
 *
 * Ninjaflight 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 Ninjaflight.  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include "serial.h"

// Since serial ports can be used for any function these buffer sizes should be equal
// The two largest things that need to be sent are: 1, MSP responses, 2, UBLOX SVINFO packet.

// Size must be a power of two due to various optimizations which use 'and' instead of 'mod'
// Various serial routines return the buffer occupied size as uint8_t which would need to be extended in order to
// increase size further.
#define UART1_RX_BUFFER_SIZE    256
#define UART1_TX_BUFFER_SIZE    256
#define UART2_RX_BUFFER_SIZE    256
#define UART2_TX_BUFFER_SIZE    256
#define UART3_RX_BUFFER_SIZE    256
#define UART3_TX_BUFFER_SIZE    256
#define UART4_RX_BUFFER_SIZE    256
#define UART4_TX_BUFFER_SIZE    256
#define UART5_RX_BUFFER_SIZE    256
#define UART5_TX_BUFFER_SIZE    256

// TODO: remove this once we remove dependency of pwm module on this uart crap
#ifdef STM32F10X
    #ifndef UART1_GPIO
    #define UART1_TX_PIN                Pin_9  // PA9
    #define UART1_RX_PIN                Pin_10 // PA10
    #define UART1_GPIO                  GPIOA
    #define UART1_APB2_PERIPHERALS      RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA
    #define UART1_AHB_PERIPHERALS       RCC_AHBPeriph_DMA1
    #endif

    #ifndef UART2_GPIO
    #define UART2_TX_PIN                Pin_2 // PA2
    #define UART2_RX_PIN                Pin_3 // PA3
    #define UART2_GPIO                  GPIOA
    #define UART2_APB1_PERIPHERALS      RCC_APB1Periph_USART2
    #define UART2_APB2_PERIPHERALS      RCC_APB2Periph_GPIOA
    #define UART2_AHB_PERIPHERALS       RCC_AHBPeriph_DMA1
    #endif

    #ifndef UART3_GPIO
    #define UART3_TX_PIN                Pin_10 // PB10
    #define UART3_RX_PIN                Pin_11 // PB11
    #define UART3_GPIO                  GPIOB
    #define UART3_APB1_PERIPHERALS      RCC_APB1Periph_USART3
    #define UART3_APB2_PERIPHERALS      RCC_APB2Periph_GPIOB
    #endif

    // pins for UART4 are fixed by hardware
    #define UART4_TX_PIN                Pin_10 // PC10
    #define UART4_RX_PIN                Pin_11 // PC11
    #define UART4_GPIO                  GPIOC
    #define UART4_APB1_PERIPHERALS      RCC_APB1Periph_UART4
    #define UART4_APB2_PERIPHERALS      RCC_APB2Periph_GPIOC

    // pins for UART5 are fixed by hardware and on GPIOC and D
    #define UART5_TX_PIN                Pin_12 // PC12
    #define UART5_RX_PIN                Pin_2  // PD2
    #define UART5_GPIO_TX               GPIOC
    #define UART5_GPIO_RX               GPIOD
    #define UART5_APB1_PERIPHERALS      RCC_APB1Periph_UART5
    #define UART5_APB2_PERIPHERALS_TX   RCC_APB2Periph_GPIOC
    #define UART5_APB2_PERIPHERALS_RX   RCC_APB2Periph_GPIOD

#elif defined(STM32F303)

    #ifndef UART1_GPIO
    #define UART1_TX_PIN                GPIO_Pin_9  // PA9
    #define UART1_RX_PIN                GPIO_Pin_10 // PA10
    #define UART1_GPIO                  GPIOA
    #define UART1_GPIO_AF               GPIO_AF_7
    #define UART1_TX_PINSOURCE          GPIO_PinSource9
    #define UART1_RX_PINSOURCE          GPIO_PinSource10
    #endif

    #ifndef UART2_GPIO
    #define UART2_TX_PIN                GPIO_Pin_5 // PD5
    #define UART2_RX_PIN                GPIO_Pin_6 // PD6
    #define UART2_GPIO                  GPIOD
    #define UART2_GPIO_AF               GPIO_AF_7
    #define UART2_TX_PINSOURCE          GPIO_PinSource5
    #define UART2_RX_PINSOURCE          GPIO_PinSource6
    #endif

    #ifndef UART3_GPIO
    #define UART3_TX_PIN                GPIO_Pin_10 // PB10 (AF7)
    #define UART3_RX_PIN                GPIO_Pin_11 // PB11 (AF7)
    #define UART3_GPIO_AF               GPIO_AF_7
    #define UART3_GPIO                  GPIOB
    #define UART3_TX_PINSOURCE          GPIO_PinSource10
    #define UART3_RX_PINSOURCE          GPIO_PinSource11
    #endif

    // pins for UART4 are fixed by hardware
    #define UART4_TX_PIN                GPIO_Pin_10 // PC10
    #define UART4_RX_PIN                GPIO_Pin_11 // PC11
    #define UART4_GPIO_AF               GPIO_AF_5
    #define UART4_GPIO                  GPIOC
    #define UART4_APB1_PERIPHERALS      RCC_APB1Periph_UART4
    #define UART4_AHB_PERIPHERALS       RCC_AHBPeriph_GPIOC
    #define UART4_TX_PINSOURCE          GPIO_PinSource10
    #define UART4_RX_PINSOURCE          GPIO_PinSource11


    // pins for UART5 are fixed by hardware and on GPIOC and D
    #define UART5_TX_PIN                Pin_12 // PC12
    #define UART5_RX_PIN                Pin_2  // PD2
    #define UART5_GPIO_AF               GPIO_AF_5
    #define UART5_GPIO_TX               GPIOC
    #define UART5_GPIO_RX               GPIOD
    #define UART5_APB1_PERIPHERALS      RCC_APB1Periph_UART5
    #define UART5_AHB_PERIPHERALS_TX    RCC_AHBPeriph_GPIOC
    #define UART5_AHB_PERIPHERALS_RX    RCC_AHBPeriph_GPIOD
    #define UART5_TX_PINSOURCE          GPIO_PinSource12
    #define UART5_RX_PINSOURCE          GPIO_PinSource2
#endif

// id starts from 1 (id 0 is invalid)!
serialPort_t *uartOpen(uint8_t id, serialReceiveCallbackPtr callback, uint32_t baudRate, portMode_t mode, portOptions_t options);

void usartInitAllIOSignals(void);