media/i2c/tw9906.c

1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (C) 2005-2006 Micronas USA Inc.
12 #include <media/v4l2-device.h>
13 #include <media/v4l2-ctrls.h>
38 	0x0d, 0x00, /* scaling */
39 	0x0e, 0x11, /* scaling */
40 	0x0f, 0x00, /* scaling */
44 	0x13, 0x7e, /* U gain */
45 	0x14, 0x7e, /* V gain */
58 	0x00, 0x00, /* Terminator (reg 0x00 is read-only) */
74 			return -1;  in write_regs()
105 	dec->norm = norm;  in tw9906_s_std()
111 	struct tw9906 *dec = container_of(ctrl->handler, struct tw9906, hdl);  in tw9906_s_ctrl()
112 	struct v4l2_subdev *sd = &dec->sd;  in tw9906_s_ctrl()
114 	switch (ctrl->id) {  in tw9906_s_ctrl()
116 		write_reg(sd, 0x10, ctrl->val);  in tw9906_s_ctrl()
119 		write_reg(sd, 0x11, ctrl->val);  in tw9906_s_ctrl()
122 		write_reg(sd, 0x15, ctrl->val);  in tw9906_s_ctrl()
125 		return -EINVAL;  in tw9906_s_ctrl()
133 	bool is_60hz = dec->norm & V4L2_STD_525_60;  in tw9906_log_status()
135 	v4l2_info(sd, "Standard: %d Hz\n", is_60hz ? 60 : 50);  in tw9906_log_status()
140 /* --------------------------------------------------------------------------*/
167 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))  in tw9906_probe()
168 		return -EIO;  in tw9906_probe()
170 	v4l_info(client, "chip found @ 0x%02x (%s)\n",  in tw9906_probe()
171 			client->addr << 1, client->adapter->name);  in tw9906_probe()
173 	dec = devm_kzalloc(&client->dev, sizeof(*dec), GFP_KERNEL);  in tw9906_probe()
175 		return -ENOMEM;  in tw9906_probe()
176 	sd = &dec->sd;  in tw9906_probe()
178 	hdl = &dec->hdl;  in tw9906_probe()
181 		V4L2_CID_BRIGHTNESS, -128, 127, 1, 0);  in tw9906_probe()
185 		V4L2_CID_HUE, -128, 127, 1, 0);  in tw9906_probe()
186 	sd->ctrl_handler = hdl;  in tw9906_probe()
187 	if (hdl->error) {  in tw9906_probe()
188 		int err = hdl->error;  in tw9906_probe()
195 	dec->norm = V4L2_STD_NTSC;  in tw9906_probe()
198 		v4l2_err(client, "error initializing TW9906\n");  in tw9906_probe()
199 		return -EINVAL;  in tw9906_probe()
210 	v4l2_ctrl_handler_free(&to_state(sd)->hdl);  in tw9906_remove()
213 /* ----------------------------------------------------------------------- */