diff options
Diffstat (limited to 'drivers/media/video/gspca/stv06xx/stv06xx_st6422.c')
| -rw-r--r-- | drivers/media/video/gspca/stv06xx/stv06xx_st6422.c | 453 |
1 files changed, 453 insertions, 0 deletions
diff --git a/drivers/media/video/gspca/stv06xx/stv06xx_st6422.c b/drivers/media/video/gspca/stv06xx/stv06xx_st6422.c new file mode 100644 index 00000000000..87cb5b9ddfa --- /dev/null +++ b/drivers/media/video/gspca/stv06xx/stv06xx_st6422.c @@ -0,0 +1,453 @@ +/* + * 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 }, +/* antiflimmer?? 0xa2 ger perfekt bild mot monitor */ + + { 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-> ljus area blir morkare. */ +/* low val -> ljus area blir ljusare. */ + { 0x1502, 0xc2 }, +/* high val-> ljus area blir morkare. */ +/* low val -> ljus area blir ljusare. */ + { 0x1503, 0x45 }, +/* high val-> ljus area blir morkare. */ +/* low val -> ljus area blir ljusare. */ + + { 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) { + PDEBUG(D_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; +} |