displayio: implement, use allocate_new_display_bus_or_raise
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6378d600c4
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@ -82,19 +82,8 @@ STATIC mp_obj_t displayio_fourwire_make_new(const mp_obj_type_t *type, size_t n_
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mcu_pin_obj_t *chip_select = validate_obj_is_free_pin(args[ARG_chip_select].u_obj);
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mcu_pin_obj_t *reset = validate_obj_is_free_pin_or_none(args[ARG_reset].u_obj);
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displayio_fourwire_obj_t* self = NULL;
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mp_obj_t spi = args[ARG_spi_bus].u_obj;
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for (uint8_t i = 0; i < CIRCUITPY_DISPLAY_LIMIT; i++) {
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if (displays[i].fourwire_bus.base.type == NULL ||
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displays[i].fourwire_bus.base.type == &mp_type_NoneType) {
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self = &displays[i].fourwire_bus;
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self->base.type = &displayio_fourwire_type;
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break;
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}
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}
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if (self == NULL) {
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mp_raise_RuntimeError(translate("Too many display busses"));
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}
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displayio_fourwire_obj_t* self = &allocate_display_bus_or_raise()->fourwire_bus;
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uint8_t polarity = args[ARG_polarity].u_int;
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if (polarity != 0 && polarity != 1) {
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@ -71,19 +71,8 @@ STATIC mp_obj_t displayio_i2cdisplay_make_new(const mp_obj_type_t *type, size_t
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mcu_pin_obj_t *reset = validate_obj_is_free_pin_or_none(args[ARG_reset].u_obj);
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displayio_i2cdisplay_obj_t* self = NULL;
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mp_obj_t i2c = args[ARG_i2c_bus].u_obj;
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for (uint8_t i = 0; i < CIRCUITPY_DISPLAY_LIMIT; i++) {
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if (displays[i].i2cdisplay_bus.base.type == NULL ||
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displays[i].i2cdisplay_bus.base.type == &mp_type_NoneType) {
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self = &displays[i].i2cdisplay_bus;
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self->base.type = &displayio_i2cdisplay_type;
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break;
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}
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}
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if (self == NULL) {
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mp_raise_RuntimeError(translate("Too many display busses"));
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}
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displayio_i2cdisplay_obj_t* self = &allocate_display_bus_or_raise()->i2cdisplay_bus;
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common_hal_displayio_i2cdisplay_construct(self,
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MP_OBJ_TO_PTR(i2c), args[ARG_device_address].u_int, reset);
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@ -83,18 +83,7 @@ STATIC mp_obj_t displayio_parallelbus_make_new(const mp_obj_type_t *type, size_t
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mcu_pin_obj_t *read = validate_obj_is_free_pin(args[ARG_read].u_obj);
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mcu_pin_obj_t *reset = validate_obj_is_free_pin(args[ARG_reset].u_obj);
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displayio_parallelbus_obj_t* self = NULL;
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for (uint8_t i = 0; i < CIRCUITPY_DISPLAY_LIMIT; i++) {
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if (displays[i].parallel_bus.base.type== NULL ||
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displays[i].parallel_bus.base.type == &mp_type_NoneType) {
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self = &displays[i].parallel_bus;
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self->base.type = &displayio_parallelbus_type;
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break;
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}
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}
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if (self == NULL) {
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mp_raise_RuntimeError(translate("Too many display busses"));
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}
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displayio_parallelbus_obj_t* self = &allocate_display_bus_or_raise()->parallel_bus;
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common_hal_displayio_parallelbus_construct(self, data0, command, chip_select, write, read, reset);
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return self;
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@ -326,3 +326,20 @@ primary_display_t *allocate_display_or_raise() {
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}
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}
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primary_display_t *allocate_display_bus(void) {
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for (uint8_t i = 0; i < CIRCUITPY_DISPLAY_LIMIT; i++) {
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mp_const_obj_t display_type = displays[i].display.base.type;
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if (display_type == NULL || display_type == &mp_type_NoneType) {
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return &displays[i];
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}
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}
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return NULL;
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}
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primary_display_t *allocate_display_bus_or_raise(void) {
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primary_display_t *result = allocate_display_bus();
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if (result) {
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return result;
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}
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mp_raise_RuntimeError(translate("Too many display busses"));
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}
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@ -56,5 +56,7 @@ void displayio_gc_collect(void);
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primary_display_t *allocate_display(void);
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primary_display_t *allocate_display_or_raise(void);
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primary_display_t *allocate_display_bus(void);
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primary_display_t *allocate_display_bus_or_raise(void);
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#endif // MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO___INIT___H
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