375 lines
8.6 KiB
C
375 lines
8.6 KiB
C
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/*
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* Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
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* Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
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* Copyright (c) 2002, 2003 Tuukka Toivonen
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* Copyright (c) 2008 Erik Andrén
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* P/N 861037: Sensor HDCS1000 ASIC STV0600
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* P/N 861050-0010: Sensor HDCS1000 ASIC STV0600
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* P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express
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* P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam
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* P/N 861075-0040: Sensor HDCS1000 ASIC
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* P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB
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* P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include "stv06xx_vv6410.h"
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static struct v4l2_pix_format vv6410_mode[] = {
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{
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356,
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292,
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V4L2_PIX_FMT_SGRBG8,
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V4L2_FIELD_NONE,
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.sizeimage = 356 * 292,
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.bytesperline = 356,
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.colorspace = V4L2_COLORSPACE_SRGB,
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.priv = 0
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}
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};
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static const struct ctrl vv6410_ctrl[] = {
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#define HFLIP_IDX 0
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{
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{
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.id = V4L2_CID_HFLIP,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "horizontal flip",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0
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},
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.set = vv6410_set_hflip,
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.get = vv6410_get_hflip
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},
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#define VFLIP_IDX 1
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{
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{
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.id = V4L2_CID_VFLIP,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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.name = "vertical flip",
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.minimum = 0,
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.maximum = 1,
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.step = 1,
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.default_value = 0
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},
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.set = vv6410_set_vflip,
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.get = vv6410_get_vflip
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},
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#define GAIN_IDX 2
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{
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{
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.id = V4L2_CID_GAIN,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "analog gain",
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.minimum = 0,
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.maximum = 15,
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.step = 1,
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.default_value = 10
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},
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.set = vv6410_set_analog_gain,
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.get = vv6410_get_analog_gain
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},
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#define EXPOSURE_IDX 3
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{
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{
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.id = V4L2_CID_EXPOSURE,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "exposure",
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.minimum = 0,
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.maximum = 32768,
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.step = 1,
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.default_value = 20000
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},
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.set = vv6410_set_exposure,
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.get = vv6410_get_exposure
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}
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};
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static int vv6410_probe(struct sd *sd)
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{
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u16 data;
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int err, i;
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s32 *sensor_settings;
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err = stv06xx_read_sensor(sd, VV6410_DEVICEH, &data);
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if (err < 0)
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return -ENODEV;
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if (data == 0x19) {
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pr_info("vv6410 sensor detected\n");
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sensor_settings = kmalloc(ARRAY_SIZE(vv6410_ctrl) * sizeof(s32),
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GFP_KERNEL);
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if (!sensor_settings)
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return -ENOMEM;
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sd->gspca_dev.cam.cam_mode = vv6410_mode;
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sd->gspca_dev.cam.nmodes = ARRAY_SIZE(vv6410_mode);
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sd->desc.ctrls = vv6410_ctrl;
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sd->desc.nctrls = ARRAY_SIZE(vv6410_ctrl);
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for (i = 0; i < sd->desc.nctrls; i++)
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sensor_settings[i] = vv6410_ctrl[i].qctrl.default_value;
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sd->sensor_priv = sensor_settings;
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return 0;
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}
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return -ENODEV;
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}
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static int vv6410_init(struct sd *sd)
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{
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int err = 0, i;
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s32 *sensor_settings = sd->sensor_priv;
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for (i = 0; i < ARRAY_SIZE(stv_bridge_init); i++) {
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stv06xx_write_bridge(sd, stv_bridge_init[i].addr, stv_bridge_init[i].data);
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}
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if (err < 0)
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return err;
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err = stv06xx_write_sensor_bytes(sd, (u8 *) vv6410_sensor_init,
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ARRAY_SIZE(vv6410_sensor_init));
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if (err < 0)
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return err;
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err = vv6410_set_exposure(&sd->gspca_dev,
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sensor_settings[EXPOSURE_IDX]);
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if (err < 0)
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return err;
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err = vv6410_set_analog_gain(&sd->gspca_dev,
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sensor_settings[GAIN_IDX]);
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return (err < 0) ? err : 0;
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}
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static void vv6410_disconnect(struct sd *sd)
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{
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sd->sensor = NULL;
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kfree(sd->sensor_priv);
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}
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static int vv6410_start(struct sd *sd)
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{
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int err;
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struct cam *cam = &sd->gspca_dev.cam;
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u32 priv = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
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if (priv & VV6410_SUBSAMPLE) {
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PDEBUG(D_CONF, "Enabling subsampling");
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stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02);
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stv06xx_write_bridge(sd, STV_X_CTRL, 0x06);
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stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x10);
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} else {
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stv06xx_write_bridge(sd, STV_Y_CTRL, 0x01);
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stv06xx_write_bridge(sd, STV_X_CTRL, 0x0a);
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stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x00);
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}
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/* Turn on LED */
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err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_ON);
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if (err < 0)
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return err;
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err = stv06xx_write_sensor(sd, VV6410_SETUP0, 0);
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if (err < 0)
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return err;
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PDEBUG(D_STREAM, "Starting stream");
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return 0;
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}
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static int vv6410_stop(struct sd *sd)
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{
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int err;
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/* Turn off LED */
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err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_OFF);
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if (err < 0)
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return err;
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err = stv06xx_write_sensor(sd, VV6410_SETUP0, VV6410_LOW_POWER_MODE);
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if (err < 0)
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return err;
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PDEBUG(D_STREAM, "Halting stream");
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return (err < 0) ? err : 0;
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}
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static int vv6410_dump(struct sd *sd)
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{
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u8 i;
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int err = 0;
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pr_info("Dumping all vv6410 sensor registers\n");
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for (i = 0; i < 0xff && !err; i++) {
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u16 data;
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err = stv06xx_read_sensor(sd, i, &data);
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pr_info("Register 0x%x contained 0x%x\n", i, data);
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}
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return (err < 0) ? err : 0;
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}
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static int vv6410_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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*val = sensor_settings[HFLIP_IDX];
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PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
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return 0;
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}
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static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
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{
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int err;
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u16 i2c_data;
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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sensor_settings[HFLIP_IDX] = val;
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err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
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if (err < 0)
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return err;
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if (val)
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i2c_data |= VV6410_HFLIP;
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else
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i2c_data &= ~VV6410_HFLIP;
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PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
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err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
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return (err < 0) ? err : 0;
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}
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static int vv6410_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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*val = sensor_settings[VFLIP_IDX];
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PDEBUG(D_V4L2, "Read vertical flip %d", *val);
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return 0;
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}
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static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
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{
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int err;
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u16 i2c_data;
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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sensor_settings[VFLIP_IDX] = val;
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err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
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if (err < 0)
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return err;
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if (val)
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i2c_data |= VV6410_VFLIP;
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else
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i2c_data &= ~VV6410_VFLIP;
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PDEBUG(D_V4L2, "Set vertical flip to %d", val);
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err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
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return (err < 0) ? err : 0;
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}
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static int vv6410_get_analog_gain(struct gspca_dev *gspca_dev, __s32 *val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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*val = sensor_settings[GAIN_IDX];
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PDEBUG(D_V4L2, "Read analog gain %d", *val);
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return 0;
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}
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static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val)
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{
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int err;
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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sensor_settings[GAIN_IDX] = val;
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PDEBUG(D_V4L2, "Set analog gain to %d", val);
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err = stv06xx_write_sensor(sd, VV6410_ANALOGGAIN, 0xf0 | (val & 0xf));
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return (err < 0) ? err : 0;
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}
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static int vv6410_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
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{
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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*val = sensor_settings[EXPOSURE_IDX];
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PDEBUG(D_V4L2, "Read exposure %d", *val);
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return 0;
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}
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static int vv6410_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
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{
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int err;
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struct sd *sd = (struct sd *) gspca_dev;
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s32 *sensor_settings = sd->sensor_priv;
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unsigned int fine, coarse;
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sensor_settings[EXPOSURE_IDX] = val;
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val = (val * val >> 14) + val / 4;
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fine = val % VV6410_CIF_LINELENGTH;
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coarse = min(512, val / VV6410_CIF_LINELENGTH);
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PDEBUG(D_V4L2, "Set coarse exposure to %d, fine expsure to %d",
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coarse, fine);
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err = stv06xx_write_sensor(sd, VV6410_FINEH, fine >> 8);
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if (err < 0)
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goto out;
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err = stv06xx_write_sensor(sd, VV6410_FINEL, fine & 0xff);
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if (err < 0)
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goto out;
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|
|
err = stv06xx_write_sensor(sd, VV6410_COARSEH, coarse >> 8);
|
||
|
|
if (err < 0)
|
||
|
|
goto out;
|
||
|
|
|
||
|
|
err = stv06xx_write_sensor(sd, VV6410_COARSEL, coarse & 0xff);
|
||
|
|
|
||
|
|
out:
|
||
|
|
return err;
|
||
|
|
}
|