141 lines
3.5 KiB
C
141 lines
3.5 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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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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enum {
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PIN_ADC1 = (1 << 0),
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PIN_ADC2 = (1 << 1),
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PIN_ADC3 = (1 << 2),
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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 adc_channel : 4;
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uint16_t adc_num : 3; // 1 bit per ADC
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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_type;
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extern const mp_obj_type_t pin_af_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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//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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qstr 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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void pin_init(void);
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const pin_obj_t *pin_find(mp_obj_t user_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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