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@ -37,35 +37,19 @@
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#include "shared-module/displayio/__init__.h"
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#endif
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#define BOARD_I2C (defined(DEFAULT_I2C_BUS_SDA) && defined(DEFAULT_I2C_BUS_SCL))
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#define BOARD_SPI (defined(DEFAULT_SPI_BUS_SCK) && defined(DEFAULT_SPI_BUS_MISO) && defined(DEFAULT_SPI_BUS_MOSI))
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#define BOARD_UART (defined(DEFAULT_UART_BUS_RX) && defined(DEFAULT_UART_BUS_TX))
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#if BOARD_I2C
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STATIC mp_obj_t i2c_singleton = NULL;
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mp_obj_t board_i2c(void) {
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mp_obj_t common_hal_board_get_i2c(void) {
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return MP_STATE_VM(shared_i2c_bus);
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}
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if (i2c_singleton == NULL) {
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busio_i2c_obj_t *self = m_new_ll_obj(busio_i2c_obj_t);
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self->base.type = &busio_i2c_type;
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mp_obj_t common_hal_board_create_i2c(void) {
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busio_i2c_obj_t *self = m_new_ll_obj(busio_i2c_obj_t);
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self->base.type = &busio_i2c_type;
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assert_pin_free(DEFAULT_I2C_BUS_SDA);
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assert_pin_free(DEFAULT_I2C_BUS_SCL);
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common_hal_busio_i2c_construct(self, DEFAULT_I2C_BUS_SCL, DEFAULT_I2C_BUS_SDA, 400000, 0);
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i2c_singleton = (mp_obj_t)self;
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}
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return i2c_singleton;
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common_hal_busio_i2c_construct(self, DEFAULT_I2C_BUS_SCL, DEFAULT_I2C_BUS_SDA, 400000, 0);
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MP_STATE_VM(shared_i2c_bus) = MP_OBJ_FROM_PTR(self);
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return MP_STATE_VM(shared_i2c_bus);
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}
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#else
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mp_obj_t board_i2c(void) {
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mp_raise_NotImplementedError(translate("No default I2C bus"));
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return NULL;
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}
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#endif
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MP_DEFINE_CONST_FUN_OBJ_0(board_i2c_obj, board_i2c);
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#if BOARD_SPI
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// Statically allocate the SPI object so it can live past the end of the heap and into the next VM.
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// That way it can be used by built-in FourWire displays and be accessible through board.SPI().
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STATIC busio_spi_obj_t spi_obj;
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@ -82,11 +66,7 @@ mp_obj_t common_hal_board_create_spi(void) {
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}
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busio_spi_obj_t *self = &spi_obj;
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self->base.type = &busio_spi_type;
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if (!common_hal_mcu_pin_is_free(DEFAULT_SPI_BUS_SCK) ||
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!common_hal_mcu_pin_is_free(DEFAULT_SPI_BUS_MOSI) ||
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!common_hal_mcu_pin_is_free(DEFAULT_SPI_BUS_MISO)) {
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return NULL;
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}
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const mcu_pin_obj_t* clock = MP_OBJ_TO_PTR(DEFAULT_SPI_BUS_SCK);
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const mcu_pin_obj_t* mosi = MP_OBJ_TO_PTR(DEFAULT_SPI_BUS_MOSI);
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const mcu_pin_obj_t* miso = MP_OBJ_TO_PTR(DEFAULT_SPI_BUS_MISO);
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@ -95,55 +75,25 @@ mp_obj_t common_hal_board_create_spi(void) {
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return spi_singleton;
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}
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mp_obj_t board_spi(void) {
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mp_obj_t singleton = common_hal_board_get_spi();
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if (singleton != NULL) {
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return singleton;
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}
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assert_pin_free(DEFAULT_SPI_BUS_SCK);
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assert_pin_free(DEFAULT_SPI_BUS_MOSI);
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assert_pin_free(DEFAULT_SPI_BUS_MISO);
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return common_hal_board_create_spi();
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}
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#else
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mp_obj_t common_hal_board_spi(void) {
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mp_raise_NotImplementedError(translate("No default SPI bus"));
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return NULL;
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mp_obj_t common_hal_board_get_uart(void) {
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return MP_STATE_VM(shared_uart_bus);
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}
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#endif
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MP_DEFINE_CONST_FUN_OBJ_0(board_spi_obj, board_spi);
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#if BOARD_UART
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STATIC mp_obj_t uart_singleton = NULL;
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mp_obj_t board_uart(void) {
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if (uart_singleton == NULL) {
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busio_uart_obj_t *self = m_new_ll_obj(busio_uart_obj_t);
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self->base.type = &busio_uart_type;
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mp_obj_t common_hal_board_create_uart(void) {
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busio_uart_obj_t *self = m_new_ll_obj(busio_uart_obj_t);
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self->base.type = &busio_uart_type;
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assert_pin_free(DEFAULT_UART_BUS_RX);
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assert_pin_free(DEFAULT_UART_BUS_TX);
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const mcu_pin_obj_t* rx = MP_OBJ_TO_PTR(DEFAULT_UART_BUS_RX);
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const mcu_pin_obj_t* tx = MP_OBJ_TO_PTR(DEFAULT_UART_BUS_TX);
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const mcu_pin_obj_t* rx = MP_OBJ_TO_PTR(DEFAULT_UART_BUS_RX);
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const mcu_pin_obj_t* tx = MP_OBJ_TO_PTR(DEFAULT_UART_BUS_TX);
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common_hal_busio_uart_construct(self, tx, rx, 9600, 8, PARITY_NONE, 1, 1000, 64);
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uart_singleton = (mp_obj_t)self;
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}
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return uart_singleton;
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}
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#else
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mp_obj_t board_uart(void) {
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mp_raise_NotImplementedError(translate("No default UART bus"));
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return NULL;
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common_hal_busio_uart_construct(self, tx |
Scott Shawcroft
4 years ago