1 // SPDX-License-Identifier: GPL-2.0+
5  * Copyright (c) 2015-2018 Red Hat Inc.
54 	u8 event;  member
96 		buf[i] = (reg_addr >> (reg_addr_width - (i + 1) * 8)) & 0xff;  in icn8505_read_xfer()
98 	ret = i2c_transfer(client->adapter, msg, 2);  in icn8505_read_xfer()
101 			ret = -EIO;  in icn8505_read_xfer()
103 			dev_err(&client->dev,  in icn8505_read_xfer()
116 	u8 buf[3 + 32]; /* 3 bytes for 24 bit reg-addr + 32 bytes max len */  in icn8505_write_xfer()
125 		return -EINVAL;  in icn8505_write_xfer()
128 		buf[i] = (reg_addr >> (reg_addr_width - (i + 1) * 8)) & 0xff;  in icn8505_write_xfer()
132 	ret = i2c_transfer(client->adapter, &msg, 1);  in icn8505_write_xfer()
135 			ret = -EIO;  in icn8505_write_xfer()
137 			dev_err(&client->dev,  in icn8505_write_xfer()
149 	return icn8505_read_xfer(icn8505->client, icn8505->client->addr, reg,  in icn8505_read_data()
158 	error = icn8505_read_xfer(icn8505->client, icn8505->client->addr, reg,  in icn8505_read_reg_silent()
168 	return icn8505_write_xfer(icn8505->client, icn8505->client->addr, reg,  in icn8505_write_reg()
175 	return icn8505_read_xfer(icn8505->client, ICN8505_PROG_I2C_ADDR, reg,  in icn8505_read_prog_data()
182 	return icn8505_write_xfer(icn8505->client, ICN8505_PROG_I2C_ADDR, reg,  in icn8505_write_prog_data()
188 	return icn8505_write_xfer(icn8505->client, ICN8505_PROG_I2C_ADDR, reg,  in icn8505_write_prog_reg()
201 	struct device *dev = &icn8505->client->dev;  in icn8505_try_fw_upload()
226 		return -ENODEV;  in icn8505_try_fw_upload()
237 	for (offset = 0; offset < fw->size; offset += count) {  in icn8505_try_fw_upload()
238 		count = min_t(size_t, fw->size - offset, 32);  in icn8505_try_fw_upload()
240 					      fw->data + offset, count);  in icn8505_try_fw_upload()
255 	if (get_unaligned_le16(buf) != fw->size) {  in icn8505_try_fw_upload()
257 		return -EIO;  in icn8505_try_fw_upload()
264 	crc = crc32_be(0, fw->data, fw->size);  in icn8505_try_fw_upload()
267 		return -EIO;  in icn8505_try_fw_upload()
281 	struct device *dev = &icn8505->client->dev;  in icn8505_upload_fw()
290 	error = firmware_request_platform(&fw, icn8505->firmware_name, dev);  in icn8505_upload_fw()
315 static bool icn8505_touch_active(u8 event)  in icn8505_touch_active()  argument
317 	return event == ICN8505_EVENT_UPDATE1 ||  in icn8505_touch_active()
318 	       event == ICN8505_EVENT_UPDATE2;  in icn8505_touch_active()
324 	struct device *dev = &icn8505->client->dev;  in icn8505_irq()
331 		dev_err(dev, "Error reading touch data: %d\n", error);  in icn8505_irq()
342 		struct icn8505_touch *touch = &touch_data.touches[i];  in icn8505_irq()  local
343 		bool act = icn8505_touch_active(touch->event);  in icn8505_irq()
345 		input_mt_slot(icn8505->input, touch->slot);  in icn8505_irq()
346 		input_mt_report_slot_state(icn8505->input, MT_TOOL_FINGER, act);  in icn8505_irq()
350 		touchscreen_report_pos(icn8505->input, &icn8505->prop,  in icn8505_irq()
351 				       get_unaligned_le16(touch->x),  in icn8505_irq()
352 				       get_unaligned_le16(touch->y),  in icn8505_irq()
356 	input_mt_sync_frame(icn8505->input);  in icn8505_irq()
357 	input_report_key(icn8505->input, KEY_LEFTMETA,  in icn8505_irq()
359 	input_sync(icn8505->input);  in icn8505_irq()
371 	if (error == -ENODATA)  in icn8505_probe_acpi()
376 	snprintf(icn8505->firmware_name, sizeof(icn8505->firmware_name),  in icn8505_probe_acpi()
377 		 "chipone/icn8505-%s.fw", subsys);  in icn8505_probe_acpi()
385 	struct device *dev = &client->dev;  in icn8505_probe()
391 	if (!client->irq) {  in icn8505_probe()
393 		return -EINVAL;  in icn8505_probe()
398 		return -ENOMEM;  in icn8505_probe()
402 		return -ENOMEM;  in icn8505_probe()
404 	input->name = client->name;  in icn8505_probe()
405 	input->id.bustype = BUS_I2C;  in icn8505_probe()
411 	icn8505->client = client;  in icn8505_probe()
412 	icn8505->input = input;  in icn8505_probe()
431 			     le16_to_cpu(resolution[0]) - 1, 0, 0);  in icn8505_probe()
433 			     le16_to_cpu(resolution[1]) - 1, 0, 0);  in icn8505_probe()
435 	touchscreen_parse_properties(input, true, &icn8505->prop);  in icn8505_probe()
438 		dev_err(dev, "Error touchscreen-size-x and/or -y missing\n");  in icn8505_probe()
439 		return -EINVAL;  in icn8505_probe()
447 	error = devm_request_threaded_irq(dev, client->irq, NULL, icn8505_irq,  in icn8505_probe()
448 					IRQF_ONESHOT, client->name, icn8505);  in icn8505_probe()
466 	disable_irq(icn8505->client->irq);  in icn8505_suspend()
482 	enable_irq(icn8505->client->irq);  in icn8505_resume()