112 static void *goodix_get_event_report(struct goodix_ts_data *ts, u32 addr,  in goodix_get_event_report()  argument
115 	struct spi_device *spi = to_spi_device(&ts->spi->dev);  in goodix_get_event_report()
133 		dev_err(ts->dev, "spi transfer error: %d", error);  in goodix_get_event_report()
140 static int goodix_spi_read(struct goodix_ts_data *ts, u32 addr,  in goodix_spi_read()  argument
143 	struct spi_device *spi = to_spi_device(&ts->spi->dev);  in goodix_spi_read()
148 	if (GOODIX_SPI_READ_PREFIX_LEN + len > sizeof(ts->xfer_buf)) {  in goodix_spi_read()
149 		dev_err(ts->dev, "read data len exceed limit %zu",  in goodix_spi_read()
150 			sizeof(ts->xfer_buf) - GOODIX_SPI_READ_PREFIX_LEN);  in goodix_spi_read()
155 	ts->xfer_buf[0] = GOODIX_SPI_READ_FLAG;  in goodix_spi_read()
156 	put_unaligned_be32(addr, ts->xfer_buf + GOODIX_SPI_TRANS_PREFIX_LEN);  in goodix_spi_read()
160 	xfers.tx_buf = ts->xfer_buf;  in goodix_spi_read()
161 	xfers.rx_buf = ts->xfer_buf;  in goodix_spi_read()
167 		dev_err(ts->dev, "spi transfer error: %d", error);  in goodix_spi_read()
169 		memcpy(data, ts->xfer_buf + GOODIX_SPI_READ_PREFIX_LEN, len);  in goodix_spi_read()
174 static int goodix_spi_write(struct goodix_ts_data *ts, u32 addr,  in goodix_spi_write()  argument
177 	struct spi_device *spi = to_spi_device(&ts->spi->dev);  in goodix_spi_write()
182 	if (GOODIX_SPI_WRITE_PREFIX_LEN + len > sizeof(ts->xfer_buf)) {  in goodix_spi_write()
183 		dev_err(ts->dev, "write data len exceed limit %zu",  in goodix_spi_write()
184 			sizeof(ts->xfer_buf) - GOODIX_SPI_WRITE_PREFIX_LEN);  in goodix_spi_write()
189 	ts->xfer_buf[0] = GOODIX_SPI_WRITE_FLAG;  in goodix_spi_write()
190 	put_unaligned_be32(addr, ts->xfer_buf + GOODIX_SPI_TRANS_PREFIX_LEN);  in goodix_spi_write()
191 	memcpy(ts->xfer_buf + GOODIX_SPI_WRITE_PREFIX_LEN, data, len);  in goodix_spi_write()
195 	xfers.tx_buf = ts->xfer_buf;  in goodix_spi_write()
201 		dev_err(ts->dev, "spi transfer error: %d", error);  in goodix_spi_write()
206 static int goodix_dev_confirm(struct goodix_ts_data *ts)  in goodix_dev_confirm()  argument
212 	gpiod_set_value_cansleep(ts->reset_gpio, 0);  in goodix_dev_confirm()
217 		error = goodix_spi_write(ts, GOODIX_DEV_CONFIRM_ADDR,  in goodix_dev_confirm()
222 		error = goodix_spi_read(ts, GOODIX_DEV_CONFIRM_ADDR,  in goodix_dev_confirm()
233 	dev_err(ts->dev, "device confirm failed, rx_buf: %*ph", 8, rx_buf);  in goodix_dev_confirm()
247 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_parse()  local
251 	rsize = le16_to_cpu(ts->hid_desc.report_desc_length);  in goodix_hid_parse()
253 		dev_err(ts->dev, "invalid report desc size, %d", rsize);  in goodix_hid_parse()
261 	error = goodix_spi_read(ts, GOODIX_HID_REPORT_DESC_ADDR, rdesc, rsize);  in goodix_hid_parse()
263 		dev_err(ts->dev, "failed get report desc, %d", error);  in goodix_hid_parse()
269 		dev_err(ts->dev, "failed parse report, %d", error);  in goodix_hid_parse()
297 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_start()  local
307 	if (report_size <= ts->hid_max_event_sz)  in goodix_hid_start()
310 	ts->event_buf = devm_krealloc(ts->dev, ts->event_buf,  in goodix_hid_start()
312 	if (!ts->event_buf)  in goodix_hid_start()
315 	ts->hid_max_event_sz = report_size;  in goodix_hid_start()
326 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_open()  local
328 	set_bit(GOODIX_HID_STARTED, &ts->flags);  in goodix_hid_open()
334 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_close()  local
336 	clear_bit(GOODIX_HID_STARTED, &ts->flags);  in goodix_hid_close()
340 static int goodix_hid_check_ack_status(struct goodix_ts_data *ts, u32 *resp_len)  in goodix_hid_check_ack_status()  argument
353 		error = goodix_spi_read(ts, GOODIX_HID_CMD_ADDR,  in goodix_hid_check_ack_status()
358 				dev_err(ts->dev, "hrd.size too short: %d", len);  in goodix_hid_check_ack_status()
391 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_get_raw_report()  local
392 	u16 data_register = le16_to_cpu(ts->hid_desc.data_register);  in goodix_hid_get_raw_report()
393 	u16 cmd_register = le16_to_cpu(ts->hid_desc.cmd_register);  in goodix_hid_get_raw_report()
405 		error = goodix_spi_read(ts, GOODIX_HID_SIGN_ADDR, buf, len);  in goodix_hid_get_raw_report()
407 			dev_err(ts->dev, "failed get win8 sign: %d", error);  in goodix_hid_get_raw_report()
436 	error = goodix_spi_write(ts, GOODIX_HID_CMD_ADDR, tmp_buf, tx_len);  in goodix_hid_get_raw_report()
438 		dev_err(ts->dev, "failed send read feature cmd, %d", error);  in goodix_hid_get_raw_report()
447 	error = goodix_hid_check_ack_status(ts, &response_data_len);  in goodix_hid_get_raw_report()
456 	error = goodix_spi_read(ts, GOODIX_HID_CMD_ADDR +  in goodix_hid_get_raw_report()
460 		dev_err(ts->dev, "failed read hid response data, %d", error);  in goodix_hid_get_raw_report()
465 		dev_err(ts->dev, "incorrect report (%d vs %d expected)",  in goodix_hid_get_raw_report()
491 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_set_raw_report()  local
492 	u16 data_register = le16_to_cpu(ts->hid_desc.data_register);  in goodix_hid_set_raw_report()
493 	u16 cmd_register = le16_to_cpu(ts->hid_desc.cmd_register);  in goodix_hid_set_raw_report()
526 	error = goodix_spi_write(ts, GOODIX_HID_CMD_ADDR, tmp_buf, tx_len);  in goodix_hid_set_raw_report()
528 		dev_err(ts->dev, "failed send report: %*ph", tx_len, tmp_buf);  in goodix_hid_set_raw_report()
539 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_raw_request()  local
542 	guard(mutex)(&ts->hid_request_lock);  in goodix_hid_raw_request()
571 	struct goodix_ts_data *ts = data;  in goodix_hid_irq()  local
576 	if (!test_bit(GOODIX_HID_STARTED, &ts->flags))  in goodix_hid_irq()
587 	event = goodix_get_event_report(ts, ts->hid_report_addr, ts->event_buf,  in goodix_hid_irq()
591 		dev_err(ts->dev, "failed get coordinate data");  in goodix_hid_irq()
601 		dev_err(ts->dev, "invalid coordinate event package size, %d",  in goodix_hid_irq()
605 	hid_input_report(ts->hid, HID_INPUT_REPORT, pkg->data,  in goodix_hid_irq()
613 	if (report_size >= ts->hid_max_event_sz) {  in goodix_hid_irq()
614 		dev_err(ts->dev, "package size exceed limit %d vs %d",  in goodix_hid_irq()
615 			report_size, ts->hid_max_event_sz);  in goodix_hid_irq()
620 	pkg = goodix_get_event_report(ts, ts->hid_report_addr + sizeof(*event),  in goodix_hid_irq()
621 				      ts->event_buf,  in goodix_hid_irq()
624 		dev_err(ts->dev, "failed read attachment data content");  in goodix_hid_irq()
628 	hid_input_report(ts->hid, HID_INPUT_REPORT, pkg->data,  in goodix_hid_irq()
634 static int goodix_hid_init(struct goodix_ts_data *ts)  in goodix_hid_init()  argument
640 	error = goodix_spi_read(ts, GOODIX_HID_DESC_ADDR, &ts->hid_desc,  in goodix_hid_init()
641 				sizeof(ts->hid_desc));  in goodix_hid_init()
643 		dev_err(ts->dev, "failed get hid desc, %d", error);  in goodix_hid_init()
651 	hid->driver_data = ts;  in goodix_hid_init()
654 	hid->dev.parent = &ts->spi->dev;  in goodix_hid_init()
656 	hid->version = le16_to_cpu(ts->hid_desc.bcd_version);  in goodix_hid_init()
657 	hid->vendor = le16_to_cpu(ts->hid_desc.vendor_id);  in goodix_hid_init()
658 	hid->product = le16_to_cpu(ts->hid_desc.product_id);  in goodix_hid_init()
664 		dev_err(ts->dev, "failed add hid device, %d", error);  in goodix_hid_init()
669 	ts->hid = hid;  in goodix_hid_init()
676 	struct goodix_ts_data *ts;  in goodix_spi_probe()  local
686 	ts = devm_kzalloc(dev, sizeof(*ts), GFP_KERNEL);  in goodix_spi_probe()
687 	if (!ts)  in goodix_spi_probe()
690 	mutex_init(&ts->hid_request_lock);  in goodix_spi_probe()
691 	spi_set_drvdata(spi, ts);  in goodix_spi_probe()
692 	ts->spi = spi;  in goodix_spi_probe()
693 	ts->dev = dev;  in goodix_spi_probe()
694 	ts->hid_max_event_sz = GOODIX_SPI_READ_PREFIX_LEN +  in goodix_spi_probe()
696 	ts->event_buf = devm_kmalloc(dev, ts->hid_max_event_sz, GFP_KERNEL);  in goodix_spi_probe()
697 	if (!ts->event_buf)  in goodix_spi_probe()
700 	ts->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);  in goodix_spi_probe()
701 	if (IS_ERR(ts->reset_gpio))  in goodix_spi_probe()
702 		return dev_err_probe(dev, PTR_ERR(ts->reset_gpio),  in goodix_spi_probe()
705 	ts->hid_report_addr = GOODIX_HID_REPORT_ADDR;  in goodix_spi_probe()
706 	error = goodix_dev_confirm(ts);  in goodix_spi_probe()
713 	error = goodix_hid_init(ts);  in goodix_spi_probe()
719 	error = devm_request_threaded_irq(&ts->spi->dev, ts->spi->irq,  in goodix_spi_probe()
721 					  "goodix_spi_hid", ts);  in goodix_spi_probe()
723 		dev_err(ts->dev, "could not register interrupt, irq = %d, %d",  in goodix_spi_probe()
724 			ts->spi->irq, error);  in goodix_spi_probe()
731 	hid_destroy_device(ts->hid);  in goodix_spi_probe()
737 	struct goodix_ts_data *ts = spi_get_drvdata(spi);  in goodix_spi_remove()  local
740 	hid_destroy_device(ts->hid);  in goodix_spi_remove()
743 static int goodix_spi_set_power(struct goodix_ts_data *ts, int power_state)  in goodix_spi_set_power()  argument
751 	guard(mutex)(&ts->hid_request_lock);  in goodix_spi_set_power()
752 	error = goodix_spi_write(ts, GOODIX_HID_CMD_ADDR, power_control_cmd,  in goodix_spi_set_power()
755 		dev_err(ts->dev, "failed set power mode: %s",  in goodix_spi_set_power()
764 	struct goodix_ts_data *ts = dev_get_drvdata(dev);  in goodix_spi_suspend()  local
766 	disable_irq(ts->spi->irq);  in goodix_spi_suspend()
767 	return goodix_spi_set_power(ts, GOODIX_SPI_POWER_SLEEP);  in goodix_spi_suspend()
772 	struct goodix_ts_data *ts = dev_get_drvdata(dev);  in goodix_spi_resume()  local
774 	enable_irq(ts->spi->irq);  in goodix_spi_resume()
775 	return goodix_spi_set_power(ts, GOODIX_SPI_POWER_ON);  in goodix_spi_resume()