1 // SPDX-License-Identifier: GPL-2.0-only
33 	struct IR_i2c_init_data *init_data = &dev->ir_i2c_init_data;  in hdpvr_register_ir_i2c()
38 	/* Our default information for ir-kbd-i2c.c to use */  in hdpvr_register_ir_i2c()
39 	init_data->ir_codes = RC_MAP_HAUPPAUGE;  in hdpvr_register_ir_i2c()
40 	init_data->internal_get_key_func = IR_KBD_GET_KEY_HAUP_XVR;  in hdpvr_register_ir_i2c()
41 	init_data->type = RC_PROTO_BIT_RC5 | RC_PROTO_BIT_RC6_MCE |  in hdpvr_register_ir_i2c()
43 	init_data->name = "HD-PVR";  in hdpvr_register_ir_i2c()
44 	init_data->polling_interval = 405; /* ms, duplicated from Windows */  in hdpvr_register_ir_i2c()
47 	return i2c_new_client_device(&dev->i2c_adapter, &info);  in hdpvr_register_ir_i2c()
56 	if ((len > sizeof(dev->i2c_buf)) || (wlen > sizeof(dev->i2c_buf)))  in hdpvr_i2c_read()
57 		return -EINVAL;  in hdpvr_i2c_read()
60 		memcpy(dev->i2c_buf, wdata, wlen);  in hdpvr_i2c_read()
61 		ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),  in hdpvr_i2c_read()
63 				      (bus << 8) | addr, 0, dev->i2c_buf,  in hdpvr_i2c_read()
69 	ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),  in hdpvr_i2c_read()
71 			      (bus << 8) | addr, 0, dev->i2c_buf, len, 1000);  in hdpvr_i2c_read()
74 		memcpy(data, dev->i2c_buf, len);  in hdpvr_i2c_read()
77 		ret = -EIO;  in hdpvr_i2c_read()
87 	if (len > sizeof(dev->i2c_buf))  in hdpvr_i2c_write()
88 		return -EINVAL;  in hdpvr_i2c_write()
90 	memcpy(dev->i2c_buf, data, len);  in hdpvr_i2c_write()
91 	ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),  in hdpvr_i2c_write()
93 			      (bus << 8) | addr, 0, dev->i2c_buf, len, 1000);  in hdpvr_i2c_write()
98 	ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),  in hdpvr_i2c_write()
100 			      0, 0, dev->i2c_buf, 2, 1000);  in hdpvr_i2c_write()
102 	if ((ret == 2) && (dev->i2c_buf[1] == (len - 1)))  in hdpvr_i2c_write()
105 		ret = -EIO;  in hdpvr_i2c_write()
111 			  int num)  in hdpvr_transfer()  argument
116 	mutex_lock(&dev->i2c_mutex);  in hdpvr_transfer()
120 	if (num == 1) {  in hdpvr_transfer()
127 	} else if (num == 2) {  in hdpvr_transfer()
129 			v4l2_warn(&dev->v4l2_dev, "refusing 2-phase i2c xfer with conflicting target addresses\n");  in hdpvr_transfer()
130 			retval = -EINVAL;  in hdpvr_transfer()
135 			v4l2_warn(&dev->v4l2_dev, "refusing complex xfer with r0=%d, r1=%d\n",  in hdpvr_transfer()
138 			retval = -EINVAL;  in hdpvr_transfer()
149 		v4l2_warn(&dev->v4l2_dev, "refusing %d-phase i2c xfer\n", num);  in hdpvr_transfer()
153 	mutex_unlock(&dev->i2c_mutex);  in hdpvr_transfer()
155 	return retval ? retval : num;  in hdpvr_transfer()
178 	mutex_lock(&dev->i2c_mutex);  in hdpvr_activate_ir()
189 	mutex_unlock(&dev->i2c_mutex);  in hdpvr_activate_ir()
198 	dev->i2c_adapter = hdpvr_i2c_adapter_template;  in hdpvr_register_i2c_adapter()
199 	dev->i2c_adapter.dev.parent = &dev->udev->dev;  in hdpvr_register_i2c_adapter()
201 	i2c_set_adapdata(&dev->i2c_adapter, dev);  in hdpvr_register_i2c_adapter()
203 	return i2c_add_adapter(&dev->i2c_adapter);  in hdpvr_register_i2c_adapter()