4  * SPDX-License-Identifier: Apache-2.0
9 #include <zephyr/dt-bindings/gpio/gpio.h>
31 #if (GROUP_SIZE > DT_PROP(TIMER_NODE, cc_num) - 1) || \
33 #error "Invalid pixel-group-size configured."
40 #error "Invalid length of pixel-mapping."
48 	_GET_ROW_IDX(dev_config->pixel_mapping[pixel_idx])
54 	_GET_COL_IDX(dev_config->pixel_mapping[pixel_idx])
59 		     "Invalid row index in pixel-mapping["#idx"]."); \
61 		     "Invalid column index in pixel-mapping["#idx"].");
77 #error "Invalid pixel period. Change refresh-frequency or pixel-group-size."
129 	struct display_drv_data *dev_data = dev->data;  in api_blanking_on()
130 	const struct display_drv_config *dev_config = dev->config;  in api_blanking_on()
132 	if (!dev_data->blanking) {  in api_blanking_on()
133 		nrf_timer_task_trigger(dev_config->timer, NRF_TIMER_TASK_STOP);  in api_blanking_on()
135 			set_pin(dev_config->rows[i], false);  in api_blanking_on()
138 			set_pin(dev_config->cols[i], false);  in api_blanking_on()
141 		dev_data->blanking = true;  in api_blanking_on()
149 	struct display_drv_data *dev_data = dev->data;  in api_blanking_off()
150 	const struct display_drv_config *dev_config = dev->config;  in api_blanking_off()
152 	if (dev_data->blanking) {  in api_blanking_off()
153 		dev_data->iteration = ITERATION_COUNT - 1;  in api_blanking_off()
155 		nrf_timer_task_trigger(dev_config->timer, NRF_TIMER_TASK_CLEAR);  in api_blanking_off()
156 		nrf_timer_task_trigger(dev_config->timer, NRF_TIMER_TASK_START);  in api_blanking_off()
158 		dev_data->blanking = false;  in api_blanking_off()
166 	struct display_drv_data *dev_data = dev->data;  in api_get_framebuffer()
168 	return dev_data->framebuf;  in api_get_framebuffer()
174 	struct display_drv_data *dev_data = dev->data;  in api_set_brightness()
176 	int16_t delta = (int16_t)new_brightness - dev_data->brightness;  in api_set_brightness()
178 	dev_data->brightness = new_brightness;  in api_set_brightness()
181 		uint8_t old_val = dev_data->framebuf[i];  in api_set_brightness()
186 			dev_data->framebuf[i] =  in api_set_brightness()
201 		return -ENOTSUP;  in api_set_pixel_format()
212 		return -ENOTSUP;  in api_set_orientation()
219 	caps->x_resolution = X_PIXELS;  in api_get_capabilities()
220 	caps->y_resolution = Y_PIXELS;  in api_get_capabilities()
221 	caps->supported_pixel_formats = PIXEL_FORMAT_MONO01;  in api_get_capabilities()
222 	caps->screen_info = 0;  in api_get_capabilities()
223 	caps->current_pixel_format = PIXEL_FORMAT_MONO01;  in api_get_capabilities()
224 	caps->current_orientation = DISPLAY_ORIENTATION_NORMAL;  in api_get_capabilities()
242 	struct display_drv_data *dev_data = dev->data;  in api_write()
244 	uint16_t end_x = x + desc->width;  in api_write()
245 	uint16_t end_y = y + desc->height;  in api_write()
249 		return -EINVAL;  in api_write()
252 	if (desc->pitch < desc->width) {  in api_write()
253 		return -EINVAL;  in api_write()
256 	uint16_t to_skip = desc->pitch - desc->width;  in api_write()
263 			dev_data->framebuf[px + (py * X_PIXELS)] =  in api_write()
264 				(data & mask) ? dev_data->brightness : 0;  in api_write()
272 			} while (--cnt);  in api_write()
294 	struct display_drv_data *dev_data = dev->data;  in prepare_pixel_pulse()
295 	const struct display_drv_config *dev_config = dev->config;  in prepare_pixel_pulse()
298 	uint8_t col_pin_info = dev_config->cols[col_idx];  in prepare_pixel_pulse()
301 	uint16_t pulse = dev_data->framebuf[pixel_idx] * QUANTUM;  in prepare_pixel_pulse()
304 	dev_config->pwm->PSEL.OUT[channel_idx] = col_psel;  in prepare_pixel_pulse()
305 	dev_data->seq[channel_idx] = pulse | (col_active_low ? 0 : BIT(15));  in prepare_pixel_pulse()
329 	nrf_timer_cc_set(dev_config->timer, 1 + channel_idx, pulse);  in prepare_pixel_pulse()
330 	dev_config->gpiote.p_reg->CONFIG[dev_data->gpiote_ch[channel_idx]] = gpiote_cfg;  in prepare_pixel_pulse()
338 	struct display_drv_data *dev_data = dev->data;  in timer_irq_handler()
339 	const struct display_drv_config *dev_config = dev->config;  in timer_irq_handler()
340 	uint8_t iteration = dev_data->iteration;  in timer_irq_handler()
348 	nrf_timer_event_clear(dev_config->timer, NRF_TIMER_EVENT_COMPARE0);  in timer_irq_handler()
350 	/* Disable the row that was enabled in the previous iteration. */  in timer_irq_handler()
351 	set_pin(dev_config->rows[dev_data->prev_row_idx], false);  in timer_irq_handler()
354 	nrf_pwm_disable(dev_config->pwm);  in timer_irq_handler()
356 		dev_config->pwm->PSEL.OUT[i] = NRF_PWM_PIN_NOT_CONNECTED;  in timer_irq_handler()
360 		dev_config->gpiote.p_reg->CONFIG[dev_data->gpiote_ch[i]] = 0;  in timer_irq_handler()
372 			pixel_idx = dev_config->refresh_order[iteration];  in timer_irq_handler()
386 			/* If the next pixel is in a different row, it cannot  in timer_irq_handler()
394 		dev_data->iteration = iteration;  in timer_irq_handler()
399 	/* Enable the row drive for the current pixel. */  in timer_irq_handler()
400 	set_pin(dev_config->rows[row_idx], true);  in timer_irq_handler()
402 	dev_data->prev_row_idx = row_idx;  in timer_irq_handler()
406 	nrf_pwm_enable(dev_config->pwm);  in timer_irq_handler()
407 	nrf_pwm_task_trigger(dev_config->pwm, NRF_PWM_TASK_SEQSTART0);  in timer_irq_handler()
411 	nrf_timer_task_trigger(dev_config->timer, NRF_TIMER_TASK_START);  in timer_irq_handler()
416 	struct display_drv_data *dev_data = dev->data;  in instance_init()
417 	const struct display_drv_config *dev_config = dev->config;  in instance_init()
427 		.values.p_raw = dev_data->seq,  in instance_init()
431 	nrf_pwm_pins_set(dev_config->pwm, out_psels);  in instance_init()
432 	nrf_pwm_configure(dev_config->pwm,  in instance_init()
434 	nrf_pwm_decoder_set(dev_config->pwm,  in instance_init()
436 	nrf_pwm_sequence_set(dev_config->pwm, 0, &sequence);  in instance_init()
437 	nrf_pwm_loop_set(dev_config->pwm, 0);  in instance_init()
438 	nrf_pwm_shorts_set(dev_config->pwm, NRF_PWM_SHORT_SEQEND0_STOP_MASK);  in instance_init()
444 		uint8_t *gpiote_ch = &dev_data->gpiote_ch[i];  in instance_init()
453 			return -ENOMEM;  in instance_init()
456 		err = nrfx_gpiote_channel_alloc(&dev_config->gpiote, gpiote_ch);  in instance_init()
463 			return -ENOMEM;  in instance_init()
467 			nrf_timer_event_address_get(dev_config->timer,  in instance_init()
469 			nrf_gpiote_event_address_get(dev_config->gpiote.p_reg,  in instance_init()
476 		uint8_t row_pin_info = dev_config->rows[i];  in instance_init()
488 		uint8_t col_pin_info = dev_config->cols[i];  in instance_init()
499 	nrf_timer_bit_width_set(dev_config->timer, NRF_TIMER_BIT_WIDTH_16);  in instance_init()
500 	nrf_timer_prescaler_set(dev_config->timer, TIMER_CLK_CONFIG);  in instance_init()
501 	nrf_timer_cc_set(dev_config->timer, 0, PIXEL_PERIOD);  in instance_init()
502 	nrf_timer_shorts_set(dev_config->timer,  in instance_init()
505 	nrf_timer_event_clear(dev_config->timer, NRF_TIMER_EVENT_COMPARE0);  in instance_init()
506 	nrf_timer_int_enable(dev_config->timer, NRF_TIMER_INT_COMPARE0_MASK);  in instance_init()
524 		"All column GPIOs must use the same GPIOTE instance");
553 	 * for the actually used row/columns pairs are overwritten (using