/*
 * This file is part of the MicroPython project, http://micropython.org/
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2013, 2014 Damien P. George
 *
 * 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 file contains pin definitions that are specific to the stm32 port.
// This file should only ever be #included by pin.h and not directly.

enum {
    PORT_A,
    PORT_B,
    PORT_C,
    PORT_D,
    PORT_E,
    PORT_F,
    PORT_G,
    PORT_H,
    PORT_I,
    PORT_J,
    PORT_K,
    PORT_L,
    PORT_M,
    PORT_N,
    PORT_O,
};

// Must have matching entries in SUPPORTED_FN in boards/make-pins.py
enum {
    AF_FN_TIM,
    AF_FN_I2C,
    AF_FN_USART,
    AF_FN_UART = AF_FN_USART,
    AF_FN_LPUART,
    AF_FN_SPI,
    AF_FN_I2S,
    AF_FN_SDMMC,
    AF_FN_CAN,
};

enum {
    AF_PIN_TYPE_TIM_CH1 = 0,
    AF_PIN_TYPE_TIM_CH2,
    AF_PIN_TYPE_TIM_CH3,
    AF_PIN_TYPE_TIM_CH4,
    AF_PIN_TYPE_TIM_CH1N,
    AF_PIN_TYPE_TIM_CH2N,
    AF_PIN_TYPE_TIM_CH3N,
    AF_PIN_TYPE_TIM_CH1_ETR,
    AF_PIN_TYPE_TIM_ETR,
    AF_PIN_TYPE_TIM_BKIN,

    AF_PIN_TYPE_I2C_SDA = 0,
    AF_PIN_TYPE_I2C_SCL,

    AF_PIN_TYPE_USART_TX = 0,
    AF_PIN_TYPE_USART_RX,
    AF_PIN_TYPE_USART_CTS,
    AF_PIN_TYPE_USART_RTS,
    AF_PIN_TYPE_USART_CK,
    AF_PIN_TYPE_UART_TX  = AF_PIN_TYPE_USART_TX,
    AF_PIN_TYPE_UART_RX  = AF_PIN_TYPE_USART_RX,
    AF_PIN_TYPE_UART_CTS = AF_PIN_TYPE_USART_CTS,
    AF_PIN_TYPE_UART_RTS = AF_PIN_TYPE_USART_RTS,
    AF_PIN_TYPE_LPUART_TX  = AF_PIN_TYPE_USART_TX,
    AF_PIN_TYPE_LPUART_RX  = AF_PIN_TYPE_USART_RX,
    AF_PIN_TYPE_LPUART_CTS = AF_PIN_TYPE_USART_CTS,
    AF_PIN_TYPE_LPUART_RTS = AF_PIN_TYPE_USART_RTS,

    AF_PIN_TYPE_SPI_MOSI = 0,
    AF_PIN_TYPE_SPI_MISO,
    AF_PIN_TYPE_SPI_SCK,
    AF_PIN_TYPE_SPI_NSS,

    AF_PIN_TYPE_I2S_CK = 0,
    AF_PIN_TYPE_I2S_MCK,
    AF_PIN_TYPE_I2S_SD,
    AF_PIN_TYPE_I2S_WS,
    AF_PIN_TYPE_I2S_EXTSD,

    AF_PIN_TYPE_SDMMC_CK = 0,
    AF_PIN_TYPE_SDMMC_CMD,
    AF_PIN_TYPE_SDMMC_D0,
    AF_PIN_TYPE_SDMMC_D1,
    AF_PIN_TYPE_SDMMC_D2,
    AF_PIN_TYPE_SDMMC_D3,

    AF_PIN_TYPE_CAN_TX = 0,
    AF_PIN_TYPE_CAN_RX,
};

// The HAL uses a slightly different naming than we chose, so we provide
// some #defines to massage things. Also I2S and SPI share the same
// peripheral.

#define GPIO_AF5_I2S1   GPIO_AF5_SPI1
#define GPIO_AF5_I2S2   GPIO_AF5_SPI2
#define GPIO_AF5_I2S3   GPIO_AF5_I2S3ext
#define GPIO_AF6_I2S2   GPIO_AF6_I2S2ext
#define GPIO_AF6_I2S3   GPIO_AF6_SPI3
#define GPIO_AF7_I2S2   GPIO_AF7_SPI2
#define GPIO_AF7_I2S3   GPIO_AF7_I2S3ext

#define I2S1  SPI1
#define I2S2  SPI2
#define I2S3  SPI3

#if defined(STM32G4) || defined(STM32H7)
// Make G4/H7 FDCAN more like CAN
#define CAN1 FDCAN1
#define CAN2 FDCAN2
#define GPIO_AF9_CAN1 GPIO_AF9_FDCAN1
#define GPIO_AF9_CAN2 GPIO_AF9_FDCAN2
#endif

enum {
    PIN_ADC1  = (1 << 0),
    PIN_ADC2  = (1 << 1),
    PIN_ADC3  = (1 << 2),
    PIN_ADC4  = (1 << 3),
    PIN_ADC5  = (1 << 4),
};

typedef GPIO_TypeDef pin_gpio_t;
