118 lines
2.4 KiB
C
118 lines
2.4 KiB
C
enum {
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PORT_A,
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PORT_B,
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PORT_C,
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PORT_D,
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PORT_E,
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PORT_F,
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PORT_G,
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PORT_H,
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PORT_I,
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PORT_J,
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};
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enum {
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AF_FN_TIM,
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AF_FN_I2C,
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AF_FN_USART,
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AF_FN_UART = AF_FN_USART,
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AF_FN_SPI
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};
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enum {
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AF_PIN_TYPE_TIM_CH1 = 0,
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AF_PIN_TYPE_TIM_CH2,
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AF_PIN_TYPE_TIM_CH3,
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AF_PIN_TYPE_TIM_CH4,
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AF_PIN_TYPE_TIM_CH1N,
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AF_PIN_TYPE_TIM_CH2N,
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AF_PIN_TYPE_TIM_CH3N,
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AF_PIN_TYPE_TIM_CH1_ETR,
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AF_PIN_TYPE_TIM_ETR,
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AF_PIN_TYPE_TIM_BKIN,
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AF_PIN_TYPE_I2C_SDA = 0,
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AF_PIN_TYPE_I2C_SCL,
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AF_PIN_TYPE_USART_TX = 0,
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AF_PIN_TYPE_USART_RX,
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AF_PIN_TYPE_USART_CTS,
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AF_PIN_TYPE_USART_RTS,
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AF_PIN_TYPE_USART_CK,
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AF_PIN_TYPE_UART_TX = AF_PIN_TYPE_USART_TX,
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AF_PIN_TYPE_UART_RX = AF_PIN_TYPE_USART_RX,
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AF_PIN_TYPE_UART_CTS = AF_PIN_TYPE_USART_CTS,
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AF_PIN_TYPE_UART_RTS = AF_PIN_TYPE_USART_RTS,
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AF_PIN_TYPE_SPI_MOSI = 0,
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AF_PIN_TYPE_SPI_MISO,
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AF_PIN_TYPE_SPI_SCK,
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AF_PIN_TYPE_SPI_NSS,
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};
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typedef struct {
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mp_obj_base_t base;
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uint8_t idx;
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uint8_t fn;
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uint8_t unit;
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uint8_t type;
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union {
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void *reg;
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TIM_TypeDef *TIM;
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I2C_TypeDef *I2C;
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USART_TypeDef *USART;
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USART_TypeDef *UART;
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SPI_TypeDef *SPI;
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};
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} pin_af_obj_t;
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typedef struct {
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mp_obj_base_t base;
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const char *name;
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uint16_t port : 4;
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uint16_t pin : 4;
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uint16_t num_af : 4;
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uint16_t pin_mask;
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GPIO_TypeDef *gpio;
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const pin_af_obj_t *af;
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} pin_obj_t;
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extern const mp_obj_type_t pin_obj_type;
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extern const mp_obj_type_t pin_af_obj_type;
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typedef struct {
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const char *name;
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const pin_obj_t *pin;
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} pin_named_pin_t;
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extern const pin_named_pin_t pin_board_pins[];
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extern const pin_named_pin_t pin_cpu_pins[];
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typedef struct {
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mp_obj_base_t base;
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mp_obj_t mapper;
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mp_obj_t map_dict;
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bool debug;
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} pin_map_obj_t;
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extern pin_map_obj_t pin_map_obj;
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typedef struct {
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mp_obj_base_t base;
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const char *name;
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const pin_named_pin_t *named_pins;
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} pin_named_pins_obj_t;
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extern const pin_named_pins_obj_t pin_board_pins_obj;
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extern const pin_named_pins_obj_t pin_cpu_pins_obj;
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const pin_obj_t *pin_find_named_pin(const pin_named_pin_t *pins, const char *name);
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const pin_af_obj_t *pin_find_af(const pin_obj_t *pin, uint8_t fn, uint8_t unit, uint8_t pin_type);
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void pin_map_init(void);
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// C function for mapping python pin identifier into an ordinal pin number.
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const pin_obj_t *pin_map_user_obj(mp_obj_t user_obj);
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