6  * SPDX-License-Identifier: Apache-2.0
52 /** GT911 data. */
82  * Device-specific wrappers around i2c_write_dt and i2c_write_read_dt.
88 	const struct gt911_config *config = dev->config;  in gt911_i2c_write()
89 	struct gt911_data *data = dev->data;  in gt911_i2c_write()  local
91 	return i2c_write(config->bus.bus, buf, num_bytes, data->actual_address);  in gt911_i2c_write()
97 	const struct gt911_config *config = dev->config;  in gt911_i2c_write_read()
98 	struct gt911_data *data = dev->data;  in gt911_i2c_write_read()  local
100 	return i2c_write_read(config->bus.bus, data->actual_address, write_buf, num_write, read_buf,  in gt911_i2c_write_read()
131 	 * Note- since we program the max number of touch inputs during init,  in gt911_process()
132 	 * the controller won't report more than the maximum number of touch  in gt911_process()
200 	struct gt911_data *data = CONTAINER_OF(work, struct gt911_data, work);  in gt911_work_handler()  local
202 	gt911_process(data->dev);  in gt911_work_handler()
208 	struct gt911_data *data = CONTAINER_OF(cb, struct gt911_data, int_gpio_cb);  in gt911_isr_handler()  local
210 	k_work_submit(&data->work);  in gt911_isr_handler()
215 	struct gt911_data *data = CONTAINER_OF(timer, struct gt911_data, timer);  in gt911_timer_handler()  local
217 	k_work_submit(&data->work);  in gt911_timer_handler()
226 	for (i = 0; i < REG_CONFIG_SIZE - 2U; i++) {  in gt911_get_firmware_checksum()
236 	return ((firmware[REG_CONFIG_VERSION - REG_GT911_CONFIG] != 0U) &&  in gt911_verify_firmware()
237 		(gt911_get_firmware_checksum(firmware) == firmware[REG_CONFIG_SIZE - 2U]));  in gt911_verify_firmware()
242 	const struct gt911_config *config = dev->config;  in gt911_init()
243 	struct gt911_data *data = dev->data;  in gt911_init()  local
245 	if (!i2c_is_ready_dt(&config->bus)) {  in gt911_init()
246 		LOG_ERR("I2C controller device not ready");  in gt911_init()
247 		return -ENODEV;  in gt911_init()
250 	data->dev = dev;  in gt911_init()
251 	data->actual_address = config->bus.addr;  in gt911_init()
253 	k_work_init(&data->work, gt911_work_handler);  in gt911_init()
257 	if (!gpio_is_ready_dt(&config->int_gpio)) {  in gt911_init()
258 		LOG_ERR("Interrupt GPIO controller device not ready");  in gt911_init()
259 		return -ENODEV;  in gt911_init()
262 	if (config->rst_gpio.port != NULL) {  in gt911_init()
263 		if (!gpio_is_ready_dt(&config->rst_gpio)) {  in gt911_init()
264 			LOG_ERR("Reset GPIO controller device not ready");  in gt911_init()
265 			return -ENODEV;  in gt911_init()
268 		r = gpio_pin_configure_dt(&config->rst_gpio, GPIO_OUTPUT_ACTIVE);  in gt911_init()
276 	 * We need to configure the int-pin to 0, in order to enter the  in gt911_init()
284 	r = gpio_pin_configure_dt(&config->int_gpio, GPIO_OUTPUT_INACTIVE);  in gt911_init()
289 	/* Delay at least 10 ms after power on before we configure gt911 */  in gt911_init()
291 	if (config->rst_gpio.port != NULL) {  in gt911_init()
293 		gpio_pin_set_dt(&config->rst_gpio, 1);  in gt911_init()
294 		/* hold down at least 1us, 1ms here */  in gt911_init()
296 		gpio_pin_set_dt(&config->rst_gpio, 0);  in gt911_init()
303 	r = gpio_pin_configure_dt(&config->int_gpio, GPIO_INPUT);  in gt911_init()
310 	r = gpio_pin_interrupt_configure_dt(&config->int_gpio, GPIO_INT_EDGE_TO_ACTIVE);  in gt911_init()
316 	gpio_init_callback(&data->int_gpio_cb, gt911_isr_handler, BIT(config->int_gpio.pin));  in gt911_init()
318 	k_timer_init(&data->timer, gt911_timer_handler, NULL);  in gt911_init()
325 	if (config->alt_addr != 0x0) {  in gt911_init()
337 			data->actual_address = config->alt_addr;  in gt911_init()
342 				data->actual_address);  in gt911_init()
353 		return -ENODEV;  in gt911_init()
367 		return -ENODEV;  in gt911_init()
383 	r = gpio_add_callback(config->int_gpio.port, &data->int_gpio_cb);  in gt911_init()
389 	k_timer_start(&data->timer, K_MSEC(CONFIG_INPUT_GT911_PERIOD_MS),  in gt911_init()