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path: root/drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c
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Diffstat (limited to 'drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c')
-rw-r--r--drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c274
1 files changed, 274 insertions, 0 deletions
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c b/drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c
new file mode 100644
index 000000000..b2f16c275
--- /dev/null
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx_vv6410.c
@@ -0,0 +1,274 @@
+/*
+ * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
+ * Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
+ * Copyright (c) 2002, 2003 Tuukka Toivonen
+ * Copyright (c) 2008 Erik Andrén
+ *
+ * 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.
+ *
+ * P/N 861037: Sensor HDCS1000 ASIC STV0600
+ * P/N 861050-0010: Sensor HDCS1000 ASIC STV0600
+ * P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express
+ * P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam
+ * P/N 861075-0040: Sensor HDCS1000 ASIC
+ * P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB
+ * P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "stv06xx_vv6410.h"
+
+static struct v4l2_pix_format vv6410_mode[] = {
+ {
+ 356,
+ 292,
+ V4L2_PIX_FMT_SGRBG8,
+ V4L2_FIELD_NONE,
+ .sizeimage = 356 * 292,
+ .bytesperline = 356,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 0
+ }
+};
+
+static int vv6410_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct gspca_dev *gspca_dev =
+ container_of(ctrl->handler, struct gspca_dev, ctrl_handler);
+ int err = -EINVAL;
+
+ switch (ctrl->id) {
+ case V4L2_CID_HFLIP:
+ if (!gspca_dev->streaming)
+ return 0;
+ err = vv6410_set_hflip(gspca_dev, ctrl->val);
+ break;
+ case V4L2_CID_VFLIP:
+ if (!gspca_dev->streaming)
+ return 0;
+ err = vv6410_set_vflip(gspca_dev, ctrl->val);
+ break;
+ case V4L2_CID_GAIN:
+ err = vv6410_set_analog_gain(gspca_dev, ctrl->val);
+ break;
+ case V4L2_CID_EXPOSURE:
+ err = vv6410_set_exposure(gspca_dev, ctrl->val);
+ break;
+ }
+ return err;
+}
+
+static const struct v4l2_ctrl_ops vv6410_ctrl_ops = {
+ .s_ctrl = vv6410_s_ctrl,
+};
+
+static int vv6410_probe(struct sd *sd)
+{
+ u16 data;
+ int err;
+
+ err = stv06xx_read_sensor(sd, VV6410_DEVICEH, &data);
+ if (err < 0)
+ return -ENODEV;
+
+ if (data != 0x19)
+ return -ENODEV;
+
+ pr_info("vv6410 sensor detected\n");
+
+ sd->gspca_dev.cam.cam_mode = vv6410_mode;
+ sd->gspca_dev.cam.nmodes = ARRAY_SIZE(vv6410_mode);
+ return 0;
+}
+
+static int vv6410_init_controls(struct sd *sd)
+{
+ struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;
+
+ v4l2_ctrl_handler_init(hdl, 2);
+ /* Disable the hardware VFLIP and HFLIP as we currently lack a
+ mechanism to adjust the image offset in such a way that
+ we don't need to renegotiate the announced format */
+ /* v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, */
+ /* V4L2_CID_HFLIP, 0, 1, 1, 0); */
+ /* v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops, */
+ /* V4L2_CID_VFLIP, 0, 1, 1, 0); */
+ v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops,
+ V4L2_CID_EXPOSURE, 0, 32768, 1, 20000);
+ v4l2_ctrl_new_std(hdl, &vv6410_ctrl_ops,
+ V4L2_CID_GAIN, 0, 15, 1, 10);
+ return hdl->error;
+}
+
+static int vv6410_init(struct sd *sd)
+{
+ int err = 0, i;
+
+ for (i = 0; i < ARRAY_SIZE(stv_bridge_init); i++)
+ stv06xx_write_bridge(sd, stv_bridge_init[i].addr, stv_bridge_init[i].data);
+
+ err = stv06xx_write_sensor_bytes(sd, (u8 *) vv6410_sensor_init,
+ ARRAY_SIZE(vv6410_sensor_init));
+ return (err < 0) ? err : 0;
+}
+
+static int vv6410_start(struct sd *sd)
+{
+ int err;
+ struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+ struct cam *cam = &sd->gspca_dev.cam;
+ u32 priv = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
+
+ if (priv & VV6410_SUBSAMPLE) {
+ gspca_dbg(gspca_dev, D_CONF, "Enabling subsampling\n");
+ stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02);
+ stv06xx_write_bridge(sd, STV_X_CTRL, 0x06);
+
+ stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x10);
+ } else {
+ stv06xx_write_bridge(sd, STV_Y_CTRL, 0x01);
+ stv06xx_write_bridge(sd, STV_X_CTRL, 0x0a);
+ stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x00);
+
+ }
+
+ /* Turn on LED */
+ err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_ON);
+ if (err < 0)
+ return err;
+
+ err = stv06xx_write_sensor(sd, VV6410_SETUP0, 0);
+ if (err < 0)
+ return err;
+
+ gspca_dbg(gspca_dev, D_STREAM, "Starting stream\n");
+
+ return 0;
+}
+
+static int vv6410_stop(struct sd *sd)
+{
+ struct gspca_dev *gspca_dev = (struct gspca_dev *)sd;
+ int err;
+
+ /* Turn off LED */
+ err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_OFF);
+ if (err < 0)
+ return err;
+
+ err = stv06xx_write_sensor(sd, VV6410_SETUP0, VV6410_LOW_POWER_MODE);
+ if (err < 0)
+ return err;
+
+ gspca_dbg(gspca_dev, D_STREAM, "Halting stream\n");
+
+ return 0;
+}
+
+static int vv6410_dump(struct sd *sd)
+{
+ u8 i;
+ int err = 0;
+
+ pr_info("Dumping all vv6410 sensor registers\n");
+ for (i = 0; i < 0xff && !err; i++) {
+ u16 data;
+ err = stv06xx_read_sensor(sd, i, &data);
+ pr_info("Register 0x%x contained 0x%x\n", i, data);
+ }
+ return (err < 0) ? err : 0;
+}
+
+static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ u16 i2c_data;
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
+ if (err < 0)
+ return err;
+
+ if (val)
+ i2c_data |= VV6410_HFLIP;
+ else
+ i2c_data &= ~VV6410_HFLIP;
+
+ gspca_dbg(gspca_dev, D_CONF, "Set horizontal flip to %d\n", val);
+ err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
+
+ return (err < 0) ? err : 0;
+}
+
+static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ u16 i2c_data;
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
+ if (err < 0)
+ return err;
+
+ if (val)
+ i2c_data |= VV6410_VFLIP;
+ else
+ i2c_data &= ~VV6410_VFLIP;
+
+ gspca_dbg(gspca_dev, D_CONF, "Set vertical flip to %d\n", val);
+ err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
+
+ return (err < 0) ? err : 0;
+}
+
+static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ gspca_dbg(gspca_dev, D_CONF, "Set analog gain to %d\n", val);
+ err = stv06xx_write_sensor(sd, VV6410_ANALOGGAIN, 0xf0 | (val & 0xf));
+
+ return (err < 0) ? err : 0;
+}
+
+static int vv6410_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ struct sd *sd = (struct sd *) gspca_dev;
+ unsigned int fine, coarse;
+
+ val = (val * val >> 14) + val / 4;
+
+ fine = val % VV6410_CIF_LINELENGTH;
+ coarse = min(512, val / VV6410_CIF_LINELENGTH);
+
+ gspca_dbg(gspca_dev, D_CONF, "Set coarse exposure to %d, fine exposure to %d\n",
+ coarse, fine);
+
+ err = stv06xx_write_sensor(sd, VV6410_FINEH, fine >> 8);
+ if (err < 0)
+ goto out;
+
+ err = stv06xx_write_sensor(sd, VV6410_FINEL, fine & 0xff);
+ if (err < 0)
+ goto out;
+
+ 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;
+}
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