63 static int setbrightness(struct sd *sd, s32 val);
64 static int setcontrast(struct sd *sd, s32 val);
65 static int setgain(struct sd *sd, u8 gain);
66 static int setexposure(struct sd *sd, s16 expo);
72 	struct sd *sd = (struct sd *)gspca_dev;  in st6422_s_ctrl()  local
77 		err = setbrightness(sd, ctrl->val);  in st6422_s_ctrl()
80 		err = setcontrast(sd, ctrl->val);  in st6422_s_ctrl()
83 		err = setgain(sd, ctrl->val);  in st6422_s_ctrl()
86 		err = setexposure(sd, ctrl->val);  in st6422_s_ctrl()
92 		err = stv06xx_write_bridge(sd, 0x143f, 0x01);  in st6422_s_ctrl()
93 	sd->gspca_dev.usb_err = err;  in st6422_s_ctrl()
101 static int st6422_init_controls(struct sd *sd)  in st6422_init_controls()  argument
103 	struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;  in st6422_init_controls()
118 static int st6422_probe(struct sd *sd)  in st6422_probe()  argument
120 	if (sd->bridge != BRIDGE_ST6422)  in st6422_probe()
125 	sd->gspca_dev.cam.cam_mode = st6422_mode;  in st6422_probe()
126 	sd->gspca_dev.cam.nmodes = ARRAY_SIZE(st6422_mode);  in st6422_probe()
130 static int st6422_init(struct sd *sd)  in st6422_init()  argument
208 		err = stv06xx_write_bridge(sd, st6422_bridge_init[i][0],  in st6422_init()
215 static int setbrightness(struct sd *sd, s32 val)  in setbrightness()  argument
218 	return stv06xx_write_bridge(sd, 0x1432, val);  in setbrightness()
221 static int setcontrast(struct sd *sd, s32 val)  in setcontrast()  argument
224 	return stv06xx_write_bridge(sd, 0x143a, val | 0xf0);  in setcontrast()
227 static int setgain(struct sd *sd, u8 gain)  in setgain()  argument
232 	err = stv06xx_write_bridge(sd, 0x0509, gain);  in setgain()
236 	err = stv06xx_write_bridge(sd, 0x050a, gain);  in setgain()
240 	err = stv06xx_write_bridge(sd, 0x050b, gain);  in setgain()
245 	err = stv06xx_write_bridge(sd, 0x050c, 0x2a);  in setgain()
249 	return stv06xx_write_bridge(sd, 0x050d, 0x01);  in setgain()
252 static int setexposure(struct sd *sd, s16 expo)  in setexposure()  argument
256 	err = stv06xx_write_bridge(sd, 0x143d, expo & 0xff);  in setexposure()
260 	return stv06xx_write_bridge(sd, 0x143e, expo >> 8);  in setexposure()
263 static int st6422_start(struct sd *sd)  in st6422_start()  argument
266 	struct cam *cam = &sd->gspca_dev.cam;  in st6422_start()
268 	if (cam->cam_mode[sd->gspca_dev.curr_mode].priv)  in st6422_start()
269 		err = stv06xx_write_bridge(sd, 0x1505, 0x0f);  in st6422_start()
271 		err = stv06xx_write_bridge(sd, 0x1505, 0x02);  in st6422_start()
276 	err = stv06xx_write_bridge(sd, 0x143f, 0x01);  in st6422_start()
280 static int st6422_stop(struct sd *sd)  in st6422_stop()  argument
282 	struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;  in st6422_stop()