2 * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
3 * Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
4 * Copyright (c) 2002, 2003 Tuukka Toivonen
5 * Copyright (c) 2008 Erik Andrén
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 * P/N 861037: Sensor HDCS1000 ASIC STV0600
22 * P/N 861050-0010: Sensor HDCS1000 ASIC STV0600
23 * P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express
24 * P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam
25 * P/N 861075-0040: Sensor HDCS1000 ASIC
26 * P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB
27 * P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web
30 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
32 #include "stv06xx_vv6410.h"
34 static struct v4l2_pix_format vv6410_mode[] = {
40 .sizeimage = 356 * 292,
42 .colorspace = V4L2_COLORSPACE_SRGB,
47 static int vv6410_s_ctrl(struct v4l2_ctrl *ctrl)
49 struct gspca_dev *gspca_dev =
50 container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
55 err = vv6410_set_hflip(gspca_dev, ctrl->val);
58 err = vv6410_set_vflip(gspca_dev, ctrl->val);
61 err = vv6410_set_analog_gain(gspca_dev, ctrl->val);
63 case V4L2_CID_EXPOSURE:
64 err = vv6410_set_exposure(gspca_dev, ctrl->val);
70 static const struct v4l2_ctrl_ops vv6410_ctrl_ops = {
71 .s_ctrl = vv6410_s_ctrl,
74 static int vv6410_probe(struct sd *sd)
79 err = stv06xx_read_sensor(sd, VV6410_DEVICEH, &data);
86 pr_info("vv6410 sensor detected\n");
88 sd->gspca_dev.cam.cam_mode = vv6410_mode;
89 sd->gspca_dev.cam.nmodes = ARRAY_SIZE(vv6410_mode);
93 static int vv6410_init_controls(struct sd *sd)
95 struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
97 v4l2_ctrl_handler_init(hdl, 4);
98 v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops,
99 V4L2_CID_HFLIP, 0, 1, 1, 0);
100 v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops,
101 V4L2_CID_VFLIP, 0, 1, 1, 0);
102 v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops,
103 V4L2_CID_EXPOSURE, 0, 32768, 1, 20000);
104 v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops,
105 V4L2_CID_GAIN, 0, 15, 1, 10);
109 static int vv6410_init(struct sd *sd)
113 for (i = 0; i < ARRAY_SIZE(stv_bridge_init); i++)
114 stv06xx_write_bridge(sd, stv_bridge_init[i].addr, stv_bridge_init[i].data);
119 err = stv06xx_write_sensor_bytes(sd, (u8 *) vv6410_sensor_init,
120 ARRAY_SIZE(vv6410_sensor_init));
121 return (err < 0) ? err : 0;
124 static int vv6410_start(struct sd *sd)
127 struct cam *cam = &sd->gspca_dev.cam;
128 u32 priv = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
130 if (priv & VV6410_SUBSAMPLE) {
131 PDEBUG(D_CONF, "Enabling subsampling");
132 stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02);
133 stv06xx_write_bridge(sd, STV_X_CTRL, 0x06);
135 stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x10);
137 stv06xx_write_bridge(sd, STV_Y_CTRL, 0x01);
138 stv06xx_write_bridge(sd, STV_X_CTRL, 0x0a);
139 stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x00);
144 err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_ON);
148 err = stv06xx_write_sensor(sd, VV6410_SETUP0, 0);
152 PDEBUG(D_STREAM, "Starting stream");
157 static int vv6410_stop(struct sd *sd)
162 err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_OFF);
166 err = stv06xx_write_sensor(sd, VV6410_SETUP0, VV6410_LOW_POWER_MODE);
170 PDEBUG(D_STREAM, "Halting stream");
172 return (err < 0) ? err : 0;
175 static int vv6410_dump(struct sd *sd)
180 pr_info("Dumping all vv6410 sensor registers\n");
181 for (i = 0; i < 0xff && !err; i++) {
183 err = stv06xx_read_sensor(sd, i, &data);
184 pr_info("Register 0x%x contained 0x%x\n", i, data);
186 return (err < 0) ? err : 0;
189 static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
193 struct sd *sd = (struct sd *) gspca_dev;
195 err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
200 i2c_data |= VV6410_HFLIP;
202 i2c_data &= ~VV6410_HFLIP;
204 PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
205 err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
207 return (err < 0) ? err : 0;
210 static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
214 struct sd *sd = (struct sd *) gspca_dev;
216 err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
221 i2c_data |= VV6410_VFLIP;
223 i2c_data &= ~VV6410_VFLIP;
225 PDEBUG(D_V4L2, "Set vertical flip to %d", val);
226 err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
228 return (err < 0) ? err : 0;
231 static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val)
234 struct sd *sd = (struct sd *) gspca_dev;
236 PDEBUG(D_V4L2, "Set analog gain to %d", val);
237 err = stv06xx_write_sensor(sd, VV6410_ANALOGGAIN, 0xf0 | (val & 0xf));
239 return (err < 0) ? err : 0;
242 static int vv6410_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
245 struct sd *sd = (struct sd *) gspca_dev;
246 unsigned int fine, coarse;
248 val = (val * val >> 14) + val / 4;
250 fine = val % VV6410_CIF_LINELENGTH;
251 coarse = min(512, val / VV6410_CIF_LINELENGTH);
253 PDEBUG(D_V4L2, "Set coarse exposure to %d, fine expsure to %d",
256 err = stv06xx_write_sensor(sd, VV6410_FINEH, fine >> 8);
260 err = stv06xx_write_sensor(sd, VV6410_FINEL, fine & 0xff);
264 err = stv06xx_write_sensor(sd, VV6410_COARSEH, coarse >> 8);
268 err = stv06xx_write_sensor(sd, VV6410_COARSEL, coarse & 0xff);