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Updated ParallelBus implementation in nrf port

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Benny Meisels 2019-08-06 02:24:25 +03:00 committed by Scott Shawcroft
parent 70680d5b22
commit d37dd4d758
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GPG Key ID: 9349BC7E64B1921E
1 changed files with 22 additions and 6 deletions
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28
ports/nrf/common-hal/displayio/ParallelBus.c
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@ -31,6 +31,7 @@
#include "common-hal/microcontroller/Pin.h"
#include "py/runtime.h"
#include "shared-bindings/digitalio/DigitalInOut.h"
#include "shared-bindings/microcontroller/__init__.h"
#include "tick.h"
@ -70,10 +71,6 @@ void common_hal_displayio_parallelbus_construct(displayio_parallelbus_obj_t* sel
common_hal_digitalio_digitalinout_construct(&self->chip_select, chip_select);
common_hal_digitalio_digitalinout_switch_to_output(&self->chip_select, true, DRIVE_MODE_PUSH_PULL);
self->reset.base.type = &digitalio_digitalinout_type;
common_hal_digitalio_digitalinout_construct(&self->reset, reset);
common_hal_digitalio_digitalinout_switch_to_output(&self->reset, true, DRIVE_MODE_PUSH_PULL);
self->write.base.type = &digitalio_digitalinout_type;
common_hal_digitalio_digitalinout_construct(&self->write, write);
common_hal_digitalio_digitalinout_switch_to_output(&self->write, true, DRIVE_MODE_PUSH_PULL);
@ -93,11 +90,18 @@ void common_hal_displayio_parallelbus_construct(displayio_parallelbus_obj_t* sel
}
self->write_mask = 1 << (write->number % num_pins_in_write_port);
if (reset != NULL) {
self->reset.base.type = &digitalio_digitalinout_type;
common_hal_digitalio_digitalinout_construct(&self->reset, reset);
common_hal_digitalio_digitalinout_switch_to_output(&self->reset, true, DRIVE_MODE_PUSH_PULL);
never_reset_pin_number(reset->number);
common_hal_displayio_parallelbus_reset(self);
}
never_reset_pin_number(command->number);
never_reset_pin_number(chip_select->number);
never_reset_pin_number(write->number);
never_reset_pin_number(read->number);
never_reset_pin_number(reset->number);
for (uint8_t i = 0; i < 8; i++) {
never_reset_pin_number(data_pin + i);
}
@ -115,13 +119,25 @@ void common_hal_displayio_parallelbus_deinit(displayio_parallelbus_obj_t* self)
reset_pin_number(self->reset.pin->number);
}
void common_hal_displayio_parallelbus_reset(mp_obj_t obj) {
displayio_parallelbus_obj_t* self = MP_OBJ_TO_PTR(obj);
common_hal_digitalio_digitalinout_set_value(&self->reset, false);
common_hal_mcu_delay_us(4);
common_hal_digitalio_digitalinout_set_value(&self->reset, true);
}
bool common_hal_displayio_parallelbus_bus_free(mp_obj_t obj) {
return true;
}
bool common_hal_displayio_parallelbus_begin_transaction(mp_obj_t obj) {
displayio_parallelbus_obj_t* self = MP_OBJ_TO_PTR(obj);
common_hal_digitalio_digitalinout_set_value(&self->chip_select, false);
return true;
}
void common_hal_displayio_parallelbus_send(mp_obj_t obj, bool command, uint8_t *data, uint32_t data_length) {
void common_hal_displayio_parallelbus_send(mp_obj_t obj, bool command, bool toggle_every_byte, uint8_t *data, uint32_t data_length) {
displayio_parallelbus_obj_t* self = MP_OBJ_TO_PTR(obj);
common_hal_digitalio_digitalinout_set_value(&self->command, !command);
uint32_t* clear_write = (uint32_t*) &self->write_group->OUTCLR;