3  * Goodix GT7986U SPI Driver Code for HID.
9 #include <linux/hid.h>
96 	struct hid_device *hid;  member
103 	/* lock for hid raw request operation */
105 	/* buffer used to store hid report event */
238  * goodix_hid_parse() - hid-core .parse() callback
239  * @hid: hid device instance
245 static int goodix_hid_parse(struct hid_device *hid)  in goodix_hid_parse()  argument
247 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_parse()
267 	error = hid_parse_report(hid, rdesc, rsize);  in goodix_hid_parse()
282 static void goodix_hid_find_max_report(struct hid_device *hid, unsigned int type,  in goodix_hid_find_max_report()  argument
288 	list_for_each_entry(report, &hid->report_enum[type].report_list, list) {  in goodix_hid_find_max_report()
295 static int goodix_hid_start(struct hid_device *hid)  in goodix_hid_start()  argument
297 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_start()
301 	goodix_hid_find_max_report(hid, HID_INPUT_REPORT, &bufsize);  in goodix_hid_start()
302 	goodix_hid_find_max_report(hid, HID_OUTPUT_REPORT, &bufsize);  in goodix_hid_start()
303 	goodix_hid_find_max_report(hid, HID_FEATURE_REPORT, &bufsize);  in goodix_hid_start()
319 static void goodix_hid_stop(struct hid_device *hid)  in goodix_hid_stop()  argument
321 	hid->claimed = 0;  in goodix_hid_stop()
324 static int goodix_hid_open(struct hid_device *hid)  in goodix_hid_open()  argument
326 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_open()
332 static void goodix_hid_close(struct hid_device *hid)  in goodix_hid_close()  argument
334 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_close()
349 		 * 3 bytes of hid request response data  in goodix_hid_check_ack_status()
374  * @hid: hid device instance
381  * get report request. The transmitted data follows the standard i2c-hid
386 static int goodix_hid_get_raw_report(struct hid_device *hid,  in goodix_hid_get_raw_report()  argument
391 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_get_raw_report()
419 	/* Clean 3 bytes of hid ack header data */  in goodix_hid_get_raw_report()
455 	/* Step3: read response data(skip 2bytes of hid pkg length) */  in goodix_hid_get_raw_report()
460 		dev_err(ts->dev, "failed read hid response data, %d", error);  in goodix_hid_get_raw_report()
474  * @hid: HID device
481  * set report request. The transmitted data follows the standard i2c-hid
486 static int goodix_hid_set_raw_report(struct hid_device *hid,  in goodix_hid_set_raw_report()  argument
491 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_set_raw_report()
510 	/* Clean 3 bytes of hid ack header data */  in goodix_hid_set_raw_report()
534 static int goodix_hid_raw_request(struct hid_device *hid,  in goodix_hid_raw_request()  argument
539 	struct goodix_ts_data *ts = hid->driver_data;  in goodix_hid_raw_request()
545 		error = goodix_hid_get_raw_report(hid, reportnum, buf,  in goodix_hid_raw_request()
550 			error = goodix_hid_set_raw_report(hid, reportnum,  in goodix_hid_raw_request()
605 	hid_input_report(ts->hid, HID_INPUT_REPORT, pkg->data,  in goodix_hid_irq()
628 	hid_input_report(ts->hid, HID_INPUT_REPORT, pkg->data,  in goodix_hid_irq()
636 	struct hid_device *hid;  in goodix_hid_init()  local
639 	/* Get hid descriptor */  in goodix_hid_init()
643 		dev_err(ts->dev, "failed get hid desc, %d", error);  in goodix_hid_init()
647 	hid = hid_allocate_device();  in goodix_hid_init()
648 	if (IS_ERR(hid))  in goodix_hid_init()
649 		return PTR_ERR(hid);  in goodix_hid_init()
651 	hid->driver_data = ts;  in goodix_hid_init()
652 	hid->ll_driver = &goodix_hid_ll_driver;  in goodix_hid_init()
653 	hid->bus = BUS_SPI;  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()
659 	snprintf(hid->name, sizeof(hid->name), "%s %04X:%04X", "hid-gdix",  in goodix_hid_init()
660 		 hid->vendor, hid->product);  in goodix_hid_init()
662 	error = hid_add_device(hid);  in goodix_hid_init()
664 		dev_err(ts->dev, "failed add hid device, %d", error);  in goodix_hid_init()
665 		hid_destroy_device(hid);  in goodix_hid_init()
669 	ts->hid = hid;  in goodix_hid_init()
715 		dev_err(dev, "failed init hid device");  in goodix_spi_probe()
731 	hid_destroy_device(ts->hid);  in goodix_spi_probe()
740 	hid_destroy_device(ts->hid);  in goodix_spi_remove()
805 		.name = "goodix-spi-hid",
816 MODULE_DESCRIPTION("Goodix SPI driver for HID touchscreen");