| /* |
| * Support for the sensor part which is integrated (I think) into the |
| * st6422 stv06xx alike bridge, as its integrated there are no i2c writes |
| * but instead direct bridge writes. |
| * |
| * Copyright (c) 2009 Hans de Goede <hdegoede@redhat.com> |
| * |
| * Strongly based on qc-usb-messenger, which is: |
| * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher |
| * Mark Cave-Ayland, Carlo E Prelz, Dick Streefland |
| * Copyright (c) 2002, 2003 Tuukka Toivonen |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| * |
| */ |
| |
| #include "stv06xx_st6422.h" |
| |
| static struct v4l2_pix_format st6422_mode[] = { |
| /* Note we actually get 124 lines of data, of which we skip the 4st |
| 4 as they are garbage */ |
| { |
| 162, |
| 120, |
| V4L2_PIX_FMT_SGRBG8, |
| V4L2_FIELD_NONE, |
| .sizeimage = 162 * 120, |
| .bytesperline = 162, |
| .colorspace = V4L2_COLORSPACE_SRGB, |
| .priv = 1 |
| }, |
| /* Note we actually get 248 lines of data, of which we skip the 4st |
| 4 as they are garbage, and we tell the app it only gets the |
| first 240 of the 244 lines it actually gets, so that it ignores |
| the last 4. */ |
| { |
| 324, |
| 240, |
| V4L2_PIX_FMT_SGRBG8, |
| V4L2_FIELD_NONE, |
| .sizeimage = 324 * 244, |
| .bytesperline = 324, |
| .colorspace = V4L2_COLORSPACE_SRGB, |
| .priv = 0 |
| }, |
| }; |
| |
| static const struct ctrl st6422_ctrl[] = { |
| #define BRIGHTNESS_IDX 0 |
| { |
| { |
| .id = V4L2_CID_BRIGHTNESS, |
| .type = V4L2_CTRL_TYPE_INTEGER, |
| .name = "Brightness", |
| .minimum = 0, |
| .maximum = 31, |
| .step = 1, |
| .default_value = 3 |
| }, |
| .set = st6422_set_brightness, |
| .get = st6422_get_brightness |
| }, |
| #define CONTRAST_IDX 1 |
| { |
| { |
| .id = V4L2_CID_CONTRAST, |
| .type = V4L2_CTRL_TYPE_INTEGER, |
| .name = "Contrast", |
| .minimum = 0, |
| .maximum = 15, |
| .step = 1, |
| .default_value = 11 |
| }, |
| .set = st6422_set_contrast, |
| .get = st6422_get_contrast |
| }, |
| #define GAIN_IDX 2 |
| { |
| { |
| .id = V4L2_CID_GAIN, |
| .type = V4L2_CTRL_TYPE_INTEGER, |
| .name = "Gain", |
| .minimum = 0, |
| .maximum = 255, |
| .step = 1, |
| .default_value = 64 |
| }, |
| .set = st6422_set_gain, |
| .get = st6422_get_gain |
| }, |
| #define EXPOSURE_IDX 3 |
| { |
| { |
| .id = V4L2_CID_EXPOSURE, |
| .type = V4L2_CTRL_TYPE_INTEGER, |
| .name = "Exposure", |
| .minimum = 0, |
| .maximum = 1023, |
| .step = 1, |
| .default_value = 256 |
| }, |
| .set = st6422_set_exposure, |
| .get = st6422_get_exposure |
| }, |
| }; |
| |
| static int st6422_probe(struct sd *sd) |
| { |
| int i; |
| s32 *sensor_settings; |
| |
| if (sd->bridge != BRIDGE_ST6422) |
| return -ENODEV; |
| |
| info("st6422 sensor detected"); |
| |
| sensor_settings = kmalloc(ARRAY_SIZE(st6422_ctrl) * sizeof(s32), |
| GFP_KERNEL); |
| if (!sensor_settings) |
| return -ENOMEM; |
| |
| sd->gspca_dev.cam.cam_mode = st6422_mode; |
| sd->gspca_dev.cam.nmodes = ARRAY_SIZE(st6422_mode); |
| sd->desc.ctrls = st6422_ctrl; |
| sd->desc.nctrls = ARRAY_SIZE(st6422_ctrl); |
| sd->sensor_priv = sensor_settings; |
| |
| for (i = 0; i < sd->desc.nctrls; i++) |
| sensor_settings[i] = st6422_ctrl[i].qctrl.default_value; |
| |
| return 0; |
| } |
| |
| static int st6422_init(struct sd *sd) |
| { |
| int err = 0, i; |
| |
| const u16 st6422_bridge_init[][2] = { |
| { STV_ISO_ENABLE, 0x00 }, /* disable capture */ |
| { 0x1436, 0x00 }, |
| { 0x1432, 0x03 }, /* 0x00-0x1F brightness */ |
| { 0x143a, 0xF9 }, /* 0x00-0x0F contrast */ |
| { 0x0509, 0x38 }, /* R */ |
| { 0x050a, 0x38 }, /* G */ |
| { 0x050b, 0x38 }, /* B */ |
| { 0x050c, 0x2A }, |
| { 0x050d, 0x01 }, |
| |
| |
| { 0x1431, 0x00 }, /* 0x00-0x07 ??? */ |
| { 0x1433, 0x34 }, /* 160x120, 0x00-0x01 night filter */ |
| { 0x1438, 0x18 }, /* 640x480 */ |
| /* 18 bayes */ |
| /* 10 compressed? */ |
| |
| { 0x1439, 0x00 }, |
| /* anti-noise? 0xa2 gives a perfect image */ |
| |
| { 0x143b, 0x05 }, |
| { 0x143c, 0x00 }, /* 0x00-0x01 - ??? */ |
| |
| |
| /* shutter time 0x0000-0x03FF */ |
| /* low value give good picures on moving objects (but requires much light) */ |
| /* high value gives good picures in darkness (but tends to be overexposed) */ |
| { 0x143e, 0x01 }, |
| { 0x143d, 0x00 }, |
| |
| { 0x1442, 0xe2 }, |
| /* write: 1x1x xxxx */ |
| /* read: 1x1x xxxx */ |
| /* bit 5 == button pressed and hold if 0 */ |
| /* write 0xe2,0xea */ |
| |
| /* 0x144a */ |
| /* 0x00 init */ |
| /* bit 7 == button has been pressed, but not handled */ |
| |
| /* interrupt */ |
| /* if(urb->iso_frame_desc[i].status == 0x80) { */ |
| /* if(urb->iso_frame_desc[i].status == 0x88) { */ |
| |
| { 0x1500, 0xd0 }, |
| { 0x1500, 0xd0 }, |
| { 0x1500, 0x50 }, /* 0x00 - 0xFF 0x80 == compr ? */ |
| |
| { 0x1501, 0xaf }, |
| /* high val-> light area gets darker */ |
| /* low val -> light area gets lighter */ |
| { 0x1502, 0xc2 }, |
| /* high val-> light area gets darker */ |
| /* low val -> light area gets lighter */ |
| { 0x1503, 0x45 }, |
| /* high val-> light area gets darker */ |
| /* low val -> light area gets lighter */ |
| { 0x1505, 0x02 }, |
| /* 2 : 324x248 80352 bytes */ |
| /* 7 : 248x162 40176 bytes */ |
| /* c+f: 162*124 20088 bytes */ |
| |
| { 0x150e, 0x8e }, |
| { 0x150f, 0x37 }, |
| { 0x15c0, 0x00 }, |
| { 0x15c1, 1023 }, /* 160x120, ISOC_PACKET_SIZE */ |
| { 0x15c3, 0x08 }, /* 0x04/0x14 ... test pictures ??? */ |
| |
| |
| { 0x143f, 0x01 }, /* commit settings */ |
| |
| }; |
| |
| for (i = 0; i < ARRAY_SIZE(st6422_bridge_init) && !err; i++) { |
| err = stv06xx_write_bridge(sd, st6422_bridge_init[i][0], |
| st6422_bridge_init[i][1]); |
| } |
| |
| return err; |
| } |
| |
| static void st6422_disconnect(struct sd *sd) |
| { |
| sd->sensor = NULL; |
| kfree(sd->sensor_priv); |
| } |
| |
| static int st6422_start(struct sd *sd) |
| { |
| int err, packet_size; |
| struct cam *cam = &sd->gspca_dev.cam; |
| s32 *sensor_settings = sd->sensor_priv; |
| struct usb_host_interface *alt; |
| struct usb_interface *intf; |
| |
| intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface); |
| alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt); |
| if (!alt) { |
| err("Couldn't get altsetting"); |
| return -EIO; |
| } |
| |
| packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize); |
| err = stv06xx_write_bridge(sd, 0x15c1, packet_size); |
| if (err < 0) |
| return err; |
| |
| if (cam->cam_mode[sd->gspca_dev.curr_mode].priv) |
| err = stv06xx_write_bridge(sd, 0x1505, 0x0f); |
| else |
| err = stv06xx_write_bridge(sd, 0x1505, 0x02); |
| if (err < 0) |
| return err; |
| |
| err = st6422_set_brightness(&sd->gspca_dev, |
| sensor_settings[BRIGHTNESS_IDX]); |
| if (err < 0) |
| return err; |
| |
| err = st6422_set_contrast(&sd->gspca_dev, |
| sensor_settings[CONTRAST_IDX]); |
| if (err < 0) |
| return err; |
| |
| err = st6422_set_exposure(&sd->gspca_dev, |
| sensor_settings[EXPOSURE_IDX]); |
| if (err < 0) |
| return err; |
| |
| err = st6422_set_gain(&sd->gspca_dev, |
| sensor_settings[GAIN_IDX]); |
| if (err < 0) |
| return err; |
| |
| PDEBUG(D_STREAM, "Starting stream"); |
| |
| return 0; |
| } |
| |
| static int st6422_stop(struct sd *sd) |
| { |
| PDEBUG(D_STREAM, "Halting stream"); |
| |
| return 0; |
| } |
| |
| static int st6422_get_brightness(struct gspca_dev *gspca_dev, __s32 *val) |
| { |
| struct sd *sd = (struct sd *) gspca_dev; |
| s32 *sensor_settings = sd->sensor_priv; |
| |
| *val = sensor_settings[BRIGHTNESS_IDX]; |
| |
| PDEBUG(D_V4L2, "Read brightness %d", *val); |
| |
| return 0; |
| } |
| |
| static int st6422_set_brightness(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| struct sd *sd = (struct sd *) gspca_dev; |
| s32 *sensor_settings = sd->sensor_priv; |
| |
| sensor_settings[BRIGHTNESS_IDX] = val; |
| |
| if (!gspca_dev->streaming) |
| return 0; |
| |
| /* val goes from 0 -> 31 */ |
| PDEBUG(D_V4L2, "Set brightness to %d", val); |
| err = stv06xx_write_bridge(sd, 0x1432, val); |
| if (err < 0) |
| return err; |
| |
| /* commit settings */ |
| err = stv06xx_write_bridge(sd, 0x143f, 0x01); |
| return (err < 0) ? err : 0; |
| } |
| |
| static int st6422_get_contrast(struct gspca_dev *gspca_dev, __s32 *val) |
| { |
| struct sd *sd = (struct sd *) gspca_dev; |
| s32 *sensor_settings = sd->sensor_priv; |
| |
| *val = sensor_settings[CONTRAST_IDX]; |
| |
| PDEBUG(D_V4L2, "Read contrast %d", *val); |
| |
| return 0; |
| } |
| |
| static int st6422_set_contrast(struct gspca_dev *gspca_dev, __s32 val) |
| { |
| int err; |
| struct sd *sd = (struct sd *) gspca_dev; |
| s32 *sensor_settings = sd->sensor_priv; |
| |
| sensor_settings[CONTRAST_IDX] = val; |
| |
| if (!gspca_dev->streaming) |
| return 0; |
| |
| /* Val goes from 0 -> 15 */ |
| PDEBUG(D_V4L2, "Set contrast to %d\n", val); |
| err = stv06xx_write_bridge(sd, 0x143a, 0xf0 | val); |
| if (err < 0) |
| return err; |
| |
| /* commit settings */ |
| err = stv06xx_write_bridge(sd, 0x143f, 0x01); |
| return (err < 0) ? err : 0; |
| } |
| |
| static int st6422_get_gain(struct gspca_dev *gspca_dev, __s32 *val) |
| { |
| struct sd *sd = (struct sd *) gspca_dev; |
| s32 *sensor_settings = sd->sensor_priv; |
| |
| *val = sensor_settings[GAIN_IDX]; |
| |
| 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; |
| } |