31 struct i2c_client *hdpvr_register_ir_i2c(struct hdpvr_device *dev)  in hdpvr_register_ir_i2c()  argument
33 	struct IR_i2c_init_data *init_data = &dev->ir_i2c_init_data;  in hdpvr_register_ir_i2c()
47 	return i2c_new_client_device(&dev->i2c_adapter, &info);  in hdpvr_register_ir_i2c()
50 static int hdpvr_i2c_read(struct hdpvr_device *dev, int bus,  in hdpvr_i2c_read()  argument
56 	if ((len > sizeof(dev->i2c_buf)) || (wlen > sizeof(dev->i2c_buf)))  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()
82 static int hdpvr_i2c_write(struct hdpvr_device *dev, int bus,  in hdpvr_i2c_write()  argument
87 	if (len > sizeof(dev->i2c_buf))  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()
113 	struct hdpvr_device *dev = i2c_get_adapdata(i2c_adapter);  in hdpvr_transfer()  local
116 	mutex_lock(&dev->i2c_mutex);  in hdpvr_transfer()
122 			retval = hdpvr_i2c_read(dev, 1, addr, NULL, 0,  in hdpvr_transfer()
125 			retval = hdpvr_i2c_write(dev, 1, addr, msgs[0].buf,  in hdpvr_transfer()
129 			v4l2_warn(&dev->v4l2_dev, "refusing 2-phase i2c xfer with conflicting target addresses\n");  in hdpvr_transfer()
135 			v4l2_warn(&dev->v4l2_dev, "refusing complex xfer with r0=%d, r1=%d\n",  in hdpvr_transfer()
146 		retval = hdpvr_i2c_read(dev, 1, addr, msgs[0].buf, msgs[0].len,  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()
174 static int hdpvr_activate_ir(struct hdpvr_device *dev)  in hdpvr_activate_ir()  argument
178 	mutex_lock(&dev->i2c_mutex);  in hdpvr_activate_ir()
180 	hdpvr_i2c_read(dev, 0, 0x54, NULL, 0, buffer, 1);  in hdpvr_activate_ir()
184 	hdpvr_i2c_write(dev, 1, 0x54, buffer, 2);  in hdpvr_activate_ir()
187 	hdpvr_i2c_write(dev, 1, 0x54, buffer, 2);  in hdpvr_activate_ir()
189 	mutex_unlock(&dev->i2c_mutex);  in hdpvr_activate_ir()
194 int hdpvr_register_i2c_adapter(struct hdpvr_device *dev)  in hdpvr_register_i2c_adapter()  argument
196 	hdpvr_activate_ir(dev);  in hdpvr_register_i2c_adapter()
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()