diff options
Diffstat (limited to 'shared-module/board/__init__.c')
| -rw-r--r-- | shared-module/board/__init__.c | 46 |
1 files changed, 32 insertions, 14 deletions
diff --git a/shared-module/board/__init__.c b/shared-module/board/__init__.c index 0fbf916cd..2f1c34e56 100644 --- a/shared-module/board/__init__.c +++ b/shared-module/board/__init__.c @@ -39,6 +39,11 @@ #include "shared-module/displayio/__init__.h" #endif +#if CIRCUITPY_SHARPDISPLAY +#include "shared-bindings/sharpdisplay/SharpMemoryFramebuffer.h" +#include "shared-module/sharpdisplay/SharpMemoryFramebuffer.h" +#endif + #if BOARD_I2C // Statically allocate the I2C object so it can live past the end of the heap and into the next VM. // That way it can be used by built-in I2CDisplay displays and be accessible through board.I2C(). @@ -50,13 +55,12 @@ mp_obj_t common_hal_board_get_i2c(void) { } mp_obj_t common_hal_board_create_i2c(void) { - if (i2c_singleton != NULL) { - return i2c_singleton; - } + // All callers have either already verified this or come so early that it can't be otherwise. + assert(i2c_singleton == NULL || common_hal_busio_i2c_deinited(i2c_singleton)); busio_i2c_obj_t *self = &i2c_obj; self->base.type = &busio_i2c_type; - common_hal_busio_i2c_construct(self, DEFAULT_I2C_BUS_SCL, DEFAULT_I2C_BUS_SDA, 400000, 0); + common_hal_busio_i2c_construct(self, DEFAULT_I2C_BUS_SCL, DEFAULT_I2C_BUS_SDA, 100000, 0); i2c_singleton = (mp_obj_t)self; return i2c_singleton; } @@ -74,9 +78,8 @@ mp_obj_t common_hal_board_get_spi(void) { } mp_obj_t common_hal_board_create_spi(void) { - if (spi_singleton != NULL) { - return spi_singleton; - } + // All callers have either already verified this or come so early that it can't be otherwise. + assert(spi_singleton == NULL || common_hal_busio_spi_deinited(spi_singleton)); busio_spi_obj_t *self = &spi_obj; self->base.type = &busio_spi_type; @@ -123,7 +126,7 @@ mp_obj_t common_hal_board_create_uart(void) { #endif common_hal_busio_uart_construct(self, tx, rx, rts, cts, rs485_dir, rs485_invert, - 9600, 8, PARITY_NONE, 1, 1.0f, 64, NULL, false); + 9600, 8, BUSIO_UART_PARITY_NONE, 1, 1.0f, 64, NULL, false); MP_STATE_VM(shared_uart_bus) = MP_OBJ_FROM_PTR(self); return MP_STATE_VM(shared_uart_bus); } @@ -134,28 +137,43 @@ void reset_board_busses(void) { bool display_using_i2c = false; #if CIRCUITPY_DISPLAYIO for (uint8_t i = 0; i < CIRCUITPY_DISPLAY_LIMIT; i++) { - if (displays[i].i2cdisplay_bus.bus == i2c_singleton) { + if (displays[i].bus_base.type == &displayio_i2cdisplay_type && displays[i].i2cdisplay_bus.bus == i2c_singleton) { display_using_i2c = true; break; } } #endif - if (!display_using_i2c) { - i2c_singleton = NULL; + if (i2c_singleton != NULL) { + if (!display_using_i2c) { + common_hal_busio_i2c_deinit(i2c_singleton); + i2c_singleton = NULL; + } } #endif #if BOARD_SPI bool display_using_spi = false; #if CIRCUITPY_DISPLAYIO for (uint8_t i = 0; i < CIRCUITPY_DISPLAY_LIMIT; i++) { - if (displays[i].fourwire_bus.bus == spi_singleton) { + mp_const_obj_t bus_type = displays[i].bus_base.type; + if (bus_type == &displayio_fourwire_type && displays[i].fourwire_bus.bus == spi_singleton) { + display_using_spi = true; + break; + } + #if CIRCUITPY_SHARPDISPLAY + if (displays[i].bus_base.type == &sharpdisplay_framebuffer_type && displays[i].sharpdisplay.bus == spi_singleton) { display_using_spi = true; break; } + #endif } #endif - if (!display_using_spi) { - spi_singleton = NULL; + // make sure SPI lock is not held over a soft reset + if (spi_singleton != NULL) { + common_hal_busio_spi_unlock(spi_singleton); + if (!display_using_spi) { + common_hal_busio_spi_deinit(spi_singleton); + spi_singleton = NULL; + } } #endif #if BOARD_UART |