453 lines
10 KiB
C
453 lines
10 KiB
C
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/*
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* Support for the sensor part which is integrated (I think) into the
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* st6422 stv06xx alike bridge, as its integrated there are no i2c writes
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* but instead direct bridge writes.
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*
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* Copyright (c) 2009 Hans de Goede <hdegoede@redhat.com>
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*
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* Strongly based on qc-usb-messenger, which is:
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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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*
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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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*/
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#include "stv06xx_st6422.h"
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static struct v4l2_pix_format st6422_mode[] = {
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/* Note we actually get 124 lines of data, of which we skip the 4st
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4 as they are garbage */
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{
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162,
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120,
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V4L2_PIX_FMT_SGRBG8,
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V4L2_FIELD_NONE,
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.sizeimage = 162 * 120,
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.bytesperline = 162,
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.colorspace = V4L2_COLORSPACE_SRGB,
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.priv = 1
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},
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/* Note we actually get 248 lines of data, of which we skip the 4st
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4 as they are garbage, and we tell the app it only gets the
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first 240 of the 244 lines it actually gets, so that it ignores
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the last 4. */
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{
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324,
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240,
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V4L2_PIX_FMT_SGRBG8,
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V4L2_FIELD_NONE,
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.sizeimage = 324 * 244,
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.bytesperline = 324,
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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 st6422_ctrl[] = {
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#define BRIGHTNESS_IDX 0
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{
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{
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.id = V4L2_CID_BRIGHTNESS,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Brightness",
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.minimum = 0,
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.maximum = 31,
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.step = 1,
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.default_value = 3
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},
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.set = st6422_set_brightness,
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.get = st6422_get_brightness
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},
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#define CONTRAST_IDX 1
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{
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{
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.id = V4L2_CID_CONTRAST,
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.type = V4L2_CTRL_TYPE_INTEGER,
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.name = "Contrast",
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.minimum = 0,
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.maximum = 15,
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.step = 1,
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.default_value = 11
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},
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.set = st6422_set_contrast,
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.get = st6422_get_contrast
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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 = "Gain",
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.minimum = 0,
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.maximum = 255,
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.step = 1,
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.default_value = 64
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},
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.set = st6422_set_gain,
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.get = st6422_get_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 = 1023,
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.step = 1,
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.default_value = 256
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},
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.set = st6422_set_exposure,
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.get = st6422_get_exposure
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},
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};
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static int st6422_probe(struct sd *sd)
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{
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int i;
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s32 *sensor_settings;
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if (sd->bridge != BRIDGE_ST6422)
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return -ENODEV;
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info("st6422 sensor detected");
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sensor_settings = kmalloc(ARRAY_SIZE(st6422_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 = st6422_mode;
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sd->gspca_dev.cam.nmodes = ARRAY_SIZE(st6422_mode);
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sd->desc.ctrls = st6422_ctrl;
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sd->desc.nctrls = ARRAY_SIZE(st6422_ctrl);
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sd->sensor_priv = sensor_settings;
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for (i = 0; i < sd->desc.nctrls; i++)
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sensor_settings[i] = st6422_ctrl[i].qctrl.default_value;
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return 0;
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}
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static int st6422_init(struct sd *sd)
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{
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int err = 0, i;
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const u16 st6422_bridge_init[][2] = {
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{ STV_ISO_ENABLE, 0x00 }, /* disable capture */
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{ 0x1436, 0x00 },
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{ 0x1432, 0x03 }, /* 0x00-0x1F brightness */
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{ 0x143a, 0xF9 }, /* 0x00-0x0F contrast */
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{ 0x0509, 0x38 }, /* R */
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{ 0x050a, 0x38 }, /* G */
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{ 0x050b, 0x38 }, /* B */
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{ 0x050c, 0x2A },
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{ 0x050d, 0x01 },
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{ 0x1431, 0x00 }, /* 0x00-0x07 ??? */
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{ 0x1433, 0x34 }, /* 160x120, 0x00-0x01 night filter */
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{ 0x1438, 0x18 }, /* 640x480 */
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/* 18 bayes */
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/* 10 compressed? */
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{ 0x1439, 0x00 },
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/* anti-noise? 0xa2 gives a perfect image */
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{ 0x143b, 0x05 },
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{ 0x143c, 0x00 }, /* 0x00-0x01 - ??? */
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/* shutter time 0x0000-0x03FF */
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/* low value give good picures on moving objects (but requires much light) */
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/* high value gives good picures in darkness (but tends to be overexposed) */
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{ 0x143e, 0x01 },
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{ 0x143d, 0x00 },
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{ 0x1442, 0xe2 },
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/* write: 1x1x xxxx */
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/* read: 1x1x xxxx */
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/* bit 5 == button pressed and hold if 0 */
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/* write 0xe2,0xea */
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/* 0x144a */
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/* 0x00 init */
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/* bit 7 == button has been pressed, but not handled */
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/* interrupt */
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/* if(urb->iso_frame_desc[i].status == 0x80) { */
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/* if(urb->iso_frame_desc[i].status == 0x88) { */
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{ 0x1500, 0xd0 },
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{ 0x1500, 0xd0 },
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{ 0x1500, 0x50 }, /* 0x00 - 0xFF 0x80 == compr ? */
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{ 0x1501, 0xaf },
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/* high val-> light area gets darker */
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/* low val -> light area gets lighter */
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{ 0x1502, 0xc2 },
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/* high val-> light area gets darker */
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/* low val -> light area gets lighter */
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{ 0x1503, 0x45 },
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/* high val-> light area gets darker */
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/* low val -> light area gets lighter */
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{ 0x1505, 0x02 },
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/* 2 : 324x248 80352 bytes */
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/* 7 : 248x162 40176 bytes */
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/* c+f: 162*124 20088 bytes */
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{ 0x150e, 0x8e },
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{ 0x150f, 0x37 },
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{ 0x15c0, 0x00 },
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{ 0x15c1, 1023 }, /* 160x120, ISOC_PACKET_SIZE */
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{ 0x15c3, 0x08 }, /* 0x04/0x14 ... test pictures ??? */
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{ 0x143f, 0x01 }, /* commit settings */
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};
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for (i = 0; i < ARRAY_SIZE(st6422_bridge_init) && !err; i++) {
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err = stv06xx_write_bridge(sd, st6422_bridge_init[i][0],
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st6422_bridge_init[i][1]);
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}
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return err;
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}
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static void st6422_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 st6422_start(struct sd *sd)
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{
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int err, packet_size;
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struct cam *cam = &sd->gspca_dev.cam;
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s32 *sensor_settings = sd->sensor_priv;
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struct usb_host_interface *alt;
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struct usb_interface *intf;
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intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface);
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alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt);
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if (!alt) {
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PDEBUG(D_ERR, "Couldn't get altsetting");
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return -EIO;
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}
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packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
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err = stv06xx_write_bridge(sd, 0x15c1, packet_size);
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if (err < 0)
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return err;
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if (cam->cam_mode[sd->gspca_dev.curr_mode].priv)
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err = stv06xx_write_bridge(sd, 0x1505, 0x0f);
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else
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err = stv06xx_write_bridge(sd, 0x1505, 0x02);
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if (err < 0)
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return err;
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err = st6422_set_brightness(&sd->gspca_dev,
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sensor_settings[BRIGHTNESS_IDX]);
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if (err < 0)
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return err;
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err = st6422_set_contrast(&sd->gspca_dev,
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sensor_settings[CONTRAST_IDX]);
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if (err < 0)
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return err;
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err = st6422_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 = st6422_set_gain(&sd->gspca_dev,
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sensor_settings[GAIN_IDX]);
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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 st6422_stop(struct sd *sd)
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{
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PDEBUG(D_STREAM, "Halting stream");
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return 0;
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}
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static int st6422_get_brightness(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[BRIGHTNESS_IDX];
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PDEBUG(D_V4L2, "Read brightness %d", *val);
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return 0;
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}
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static int st6422_set_brightness(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[BRIGHTNESS_IDX] = val;
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if (!gspca_dev->streaming)
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return 0;
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/* val goes from 0 -> 31 */
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PDEBUG(D_V4L2, "Set brightness to %d", val);
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err = stv06xx_write_bridge(sd, 0x1432, val);
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if (err < 0)
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return err;
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/* commit settings */
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err = stv06xx_write_bridge(sd, 0x143f, 0x01);
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return (err < 0) ? err : 0;
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}
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static int st6422_get_contrast(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[CONTRAST_IDX];
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PDEBUG(D_V4L2, "Read contrast %d", *val);
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return 0;
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}
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static int st6422_set_contrast(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[CONTRAST_IDX] = val;
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if (!gspca_dev->streaming)
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return 0;
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/* Val goes from 0 -> 15 */
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PDEBUG(D_V4L2, "Set contrast to %d\n", val);
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err = stv06xx_write_bridge(sd, 0x143a, 0xf0 | val);
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if (err < 0)
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return err;
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/* commit settings */
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err = stv06xx_write_bridge(sd, 0x143f, 0x01);
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return (err < 0) ? err : 0;
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}
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static int st6422_get_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 gain %d", *val);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int st6422_set_gain(struct gspca_dev *gspca_dev, __s32 val)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
s32 *sensor_settings = sd->sensor_priv;
|
||
|
|
|
||
|
|
sensor_settings[GAIN_IDX] = val;
|
||
|
|
|
||
|
|
if (!gspca_dev->streaming)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
PDEBUG(D_V4L2, "Set gain to %d", val);
|
||
|
|
|
||
|
|
/* Set red, green, blue, gain */
|
||
|
|
err = stv06xx_write_bridge(sd, 0x0509, val);
|
||
|
|
if (err < 0)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
err = stv06xx_write_bridge(sd, 0x050a, val);
|
||
|
|
if (err < 0)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
err = stv06xx_write_bridge(sd, 0x050b, val);
|
||
|
|
if (err < 0)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
/* 2 mystery writes */
|
||
|
|
err = stv06xx_write_bridge(sd, 0x050c, 0x2a);
|
||
|
|
if (err < 0)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
err = stv06xx_write_bridge(sd, 0x050d, 0x01);
|
||
|
|
if (err < 0)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
/* commit settings */
|
||
|
|
err = stv06xx_write_bridge(sd, 0x143f, 0x01);
|
||
|
|
return (err < 0) ? err : 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int st6422_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
|
||
|
|
{
|
||
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
s32 *sensor_settings = sd->sensor_priv;
|
||
|
|
|
||
|
|
*val = sensor_settings[EXPOSURE_IDX];
|
||
|
|
|
||
|
|
PDEBUG(D_V4L2, "Read exposure %d", *val);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int st6422_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
struct sd *sd = (struct sd *) gspca_dev;
|
||
|
|
s32 *sensor_settings = sd->sensor_priv;
|
||
|
|
|
||
|
|
sensor_settings[EXPOSURE_IDX] = val;
|
||
|
|
|
||
|
|
if (!gspca_dev->streaming)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
PDEBUG(D_V4L2, "Set exposure to %d\n", val);
|
||
|
|
err = stv06xx_write_bridge(sd, 0x143d, val & 0xff);
|
||
|
|
if (err < 0)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
err = stv06xx_write_bridge(sd, 0x143e, val >> 8);
|
||
|
|
if (err < 0)
|
||
|
|
return err;
|
||
|
|
|
||
|
|
/* commit settings */
|
||
|
|
err = stv06xx_write_bridge(sd, 0x143f, 0x01);
|
||
|
|
return (err < 0) ? err : 0;
|
||
|
|
}
|