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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-08-14 00:13:22 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-08-15 16:25:07 -0300
commit0c0d06cac63ee327ceaab4b5ffe2206574ab86bd (patch)
treee759f0dc3185d97f2a0c6b5cd5e32ea6faa74d40 /drivers/media/usb/gspca/m5602/m5602_ov9650.c
parent84cfe9e79bd5ac11c963f4841158454fefa872f6 (diff)
downloadvexpress-lsk-0c0d06cac63ee327ceaab4b5ffe2206574ab86bd.tar.gz
[media] rename most media/video usb drivers to media/usb
Rename all USB drivers with their own directory under drivers/media/video into drivers/media/usb and update the building system. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/usb/gspca/m5602/m5602_ov9650.c')
-rw-r--r--drivers/media/usb/gspca/m5602/m5602_ov9650.c881
1 files changed, 881 insertions, 0 deletions
diff --git a/drivers/media/usb/gspca/m5602/m5602_ov9650.c b/drivers/media/usb/gspca/m5602/m5602_ov9650.c
new file mode 100644
index 00000000000..2114a8b90ec
--- /dev/null
+++ b/drivers/media/usb/gspca/m5602/m5602_ov9650.c
@@ -0,0 +1,881 @@
+/*
+ * Driver for the ov9650 sensor
+ *
+ * Copyright (C) 2008 Erik Andrén
+ * Copyright (C) 2007 Ilyes Gouta. Based on the m5603x Linux Driver Project.
+ * Copyright (C) 2005 m5603x Linux Driver Project <m5602@x3ng.com.br>
+ *
+ * Portions of code to USB interface and ALi driver software,
+ * Copyright (c) 2006 Willem Duinker
+ * v4l2 interface modeled after the V4L2 driver
+ * for SN9C10x PC Camera Controllers
+ *
+ * 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, version 2.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "m5602_ov9650.h"
+
+static int ov9650_set_exposure(struct gspca_dev *gspca_dev, __s32 val);
+static int ov9650_get_exposure(struct gspca_dev *gspca_dev, __s32 *val);
+static int ov9650_get_gain(struct gspca_dev *gspca_dev, __s32 *val);
+static int ov9650_set_gain(struct gspca_dev *gspca_dev, __s32 val);
+static int ov9650_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val);
+static int ov9650_set_red_balance(struct gspca_dev *gspca_dev, __s32 val);
+static int ov9650_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val);
+static int ov9650_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val);
+static int ov9650_get_hflip(struct gspca_dev *gspca_dev, __s32 *val);
+static int ov9650_set_hflip(struct gspca_dev *gspca_dev, __s32 val);
+static int ov9650_get_vflip(struct gspca_dev *gspca_dev, __s32 *val);
+static int ov9650_set_vflip(struct gspca_dev *gspca_dev, __s32 val);
+static int ov9650_get_auto_white_balance(struct gspca_dev *gspca_dev,
+ __s32 *val);
+static int ov9650_set_auto_white_balance(struct gspca_dev *gspca_dev,
+ __s32 val);
+static int ov9650_get_auto_gain(struct gspca_dev *gspca_dev, __s32 *val);
+static int ov9650_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val);
+static int ov9650_get_auto_exposure(struct gspca_dev *gspca_dev, __s32 *val);
+static int ov9650_set_auto_exposure(struct gspca_dev *gspca_dev, __s32 val);
+
+/* Vertically and horizontally flips the image if matched, needed for machines
+ where the sensor is mounted upside down */
+static
+ const
+ struct dmi_system_id ov9650_flip_dmi_table[] = {
+ {
+ .ident = "ASUS A6Ja",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "A6J")
+ }
+ },
+ {
+ .ident = "ASUS A6JC",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "A6JC")
+ }
+ },
+ {
+ .ident = "ASUS A6K",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "A6K")
+ }
+ },
+ {
+ .ident = "ASUS A6Kt",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "A6Kt")
+ }
+ },
+ {
+ .ident = "ASUS A6VA",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "A6VA")
+ }
+ },
+ {
+
+ .ident = "ASUS A6VC",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "A6VC")
+ }
+ },
+ {
+ .ident = "ASUS A6VM",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "A6VM")
+ }
+ },
+ {
+ .ident = "ASUS A7V",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "A7V")
+ }
+ },
+ {
+ .ident = "Alienware Aurora m9700",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "alienware"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aurora m9700")
+ }
+ },
+ {}
+};
+
+static const struct ctrl ov9650_ctrls[] = {
+#define EXPOSURE_IDX 0
+ {
+ {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "exposure",
+ .minimum = 0x00,
+ .maximum = 0x1ff,
+ .step = 0x4,
+ .default_value = EXPOSURE_DEFAULT,
+ .flags = V4L2_CTRL_FLAG_SLIDER
+ },
+ .set = ov9650_set_exposure,
+ .get = ov9650_get_exposure
+ },
+#define GAIN_IDX 1
+ {
+ {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "gain",
+ .minimum = 0x00,
+ .maximum = 0x3ff,
+ .step = 0x1,
+ .default_value = GAIN_DEFAULT,
+ .flags = V4L2_CTRL_FLAG_SLIDER
+ },
+ .set = ov9650_set_gain,
+ .get = ov9650_get_gain
+ },
+#define RED_BALANCE_IDX 2
+ {
+ {
+ .id = V4L2_CID_RED_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "red balance",
+ .minimum = 0x00,
+ .maximum = 0xff,
+ .step = 0x1,
+ .default_value = RED_GAIN_DEFAULT,
+ .flags = V4L2_CTRL_FLAG_SLIDER
+ },
+ .set = ov9650_set_red_balance,
+ .get = ov9650_get_red_balance
+ },
+#define BLUE_BALANCE_IDX 3
+ {
+ {
+ .id = V4L2_CID_BLUE_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "blue balance",
+ .minimum = 0x00,
+ .maximum = 0xff,
+ .step = 0x1,
+ .default_value = BLUE_GAIN_DEFAULT,
+ .flags = V4L2_CTRL_FLAG_SLIDER
+ },
+ .set = ov9650_set_blue_balance,
+ .get = ov9650_get_blue_balance
+ },
+#define HFLIP_IDX 4
+ {
+ {
+ .id = V4L2_CID_HFLIP,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "horizontal flip",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 0
+ },
+ .set = ov9650_set_hflip,
+ .get = ov9650_get_hflip
+ },
+#define VFLIP_IDX 5
+ {
+ {
+ .id = V4L2_CID_VFLIP,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "vertical flip",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 0
+ },
+ .set = ov9650_set_vflip,
+ .get = ov9650_get_vflip
+ },
+#define AUTO_WHITE_BALANCE_IDX 6
+ {
+ {
+ .id = V4L2_CID_AUTO_WHITE_BALANCE,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "auto white balance",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 1
+ },
+ .set = ov9650_set_auto_white_balance,
+ .get = ov9650_get_auto_white_balance
+ },
+#define AUTO_GAIN_CTRL_IDX 7
+ {
+ {
+ .id = V4L2_CID_AUTOGAIN,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "auto gain control",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 1
+ },
+ .set = ov9650_set_auto_gain,
+ .get = ov9650_get_auto_gain
+ },
+#define AUTO_EXPOSURE_IDX 8
+ {
+ {
+ .id = V4L2_CID_EXPOSURE_AUTO,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "auto exposure",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 1
+ },
+ .set = ov9650_set_auto_exposure,
+ .get = ov9650_get_auto_exposure
+ }
+
+};
+
+static struct v4l2_pix_format ov9650_modes[] = {
+ {
+ 176,
+ 144,
+ V4L2_PIX_FMT_SBGGR8,
+ V4L2_FIELD_NONE,
+ .sizeimage =
+ 176 * 144,
+ .bytesperline = 176,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 9
+ }, {
+ 320,
+ 240,
+ V4L2_PIX_FMT_SBGGR8,
+ V4L2_FIELD_NONE,
+ .sizeimage =
+ 320 * 240,
+ .bytesperline = 320,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 8
+ }, {
+ 352,
+ 288,
+ V4L2_PIX_FMT_SBGGR8,
+ V4L2_FIELD_NONE,
+ .sizeimage =
+ 352 * 288,
+ .bytesperline = 352,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 9
+ }, {
+ 640,
+ 480,
+ V4L2_PIX_FMT_SBGGR8,
+ V4L2_FIELD_NONE,
+ .sizeimage =
+ 640 * 480,
+ .bytesperline = 640,
+ .colorspace = V4L2_COLORSPACE_SRGB,
+ .priv = 9
+ }
+};
+
+static void ov9650_dump_registers(struct sd *sd);
+
+int ov9650_probe(struct sd *sd)
+{
+ int err = 0;
+ u8 prod_id = 0, ver_id = 0, i;
+ s32 *sensor_settings;
+
+ if (force_sensor) {
+ if (force_sensor == OV9650_SENSOR) {
+ pr_info("Forcing an %s sensor\n", ov9650.name);
+ goto sensor_found;
+ }
+ /* If we want to force another sensor,
+ don't try to probe this one */
+ return -ENODEV;
+ }
+
+ PDEBUG(D_PROBE, "Probing for an ov9650 sensor");
+
+ /* Run the pre-init before probing the sensor */
+ for (i = 0; i < ARRAY_SIZE(preinit_ov9650) && !err; i++) {
+ u8 data = preinit_ov9650[i][2];
+ if (preinit_ov9650[i][0] == SENSOR)
+ err = m5602_write_sensor(sd,
+ preinit_ov9650[i][1], &data, 1);
+ else
+ err = m5602_write_bridge(sd,
+ preinit_ov9650[i][1], data);
+ }
+
+ if (err < 0)
+ return err;
+
+ if (m5602_read_sensor(sd, OV9650_PID, &prod_id, 1))
+ return -ENODEV;
+
+ if (m5602_read_sensor(sd, OV9650_VER, &ver_id, 1))
+ return -ENODEV;
+
+ if ((prod_id == 0x96) && (ver_id == 0x52)) {
+ pr_info("Detected an ov9650 sensor\n");
+ goto sensor_found;
+ }
+ return -ENODEV;
+
+sensor_found:
+ sensor_settings = kmalloc(
+ ARRAY_SIZE(ov9650_ctrls) * sizeof(s32), GFP_KERNEL);
+ if (!sensor_settings)
+ return -ENOMEM;
+
+ sd->gspca_dev.cam.cam_mode = ov9650_modes;
+ sd->gspca_dev.cam.nmodes = ARRAY_SIZE(ov9650_modes);
+ sd->desc->ctrls = ov9650_ctrls;
+ sd->desc->nctrls = ARRAY_SIZE(ov9650_ctrls);
+
+ for (i = 0; i < ARRAY_SIZE(ov9650_ctrls); i++)
+ sensor_settings[i] = ov9650_ctrls[i].qctrl.default_value;
+ sd->sensor_priv = sensor_settings;
+ return 0;
+}
+
+int ov9650_init(struct sd *sd)
+{
+ int i, err = 0;
+ u8 data;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ if (dump_sensor)
+ ov9650_dump_registers(sd);
+
+ for (i = 0; i < ARRAY_SIZE(init_ov9650) && !err; i++) {
+ data = init_ov9650[i][2];
+ if (init_ov9650[i][0] == SENSOR)
+ err = m5602_write_sensor(sd, init_ov9650[i][1],
+ &data, 1);
+ else
+ err = m5602_write_bridge(sd, init_ov9650[i][1], data);
+ }
+
+ err = ov9650_set_exposure(&sd->gspca_dev,
+ sensor_settings[EXPOSURE_IDX]);
+ if (err < 0)
+ return err;
+
+ err = ov9650_set_gain(&sd->gspca_dev, sensor_settings[GAIN_IDX]);
+ if (err < 0)
+ return err;
+
+ err = ov9650_set_red_balance(&sd->gspca_dev,
+ sensor_settings[RED_BALANCE_IDX]);
+ if (err < 0)
+ return err;
+
+ err = ov9650_set_blue_balance(&sd->gspca_dev,
+ sensor_settings[BLUE_BALANCE_IDX]);
+ if (err < 0)
+ return err;
+
+ err = ov9650_set_hflip(&sd->gspca_dev, sensor_settings[HFLIP_IDX]);
+ if (err < 0)
+ return err;
+
+ err = ov9650_set_vflip(&sd->gspca_dev, sensor_settings[VFLIP_IDX]);
+ if (err < 0)
+ return err;
+
+ err = ov9650_set_auto_exposure(&sd->gspca_dev,
+ sensor_settings[AUTO_EXPOSURE_IDX]);
+ if (err < 0)
+ return err;
+
+ err = ov9650_set_auto_white_balance(&sd->gspca_dev,
+ sensor_settings[AUTO_WHITE_BALANCE_IDX]);
+ if (err < 0)
+ return err;
+
+ err = ov9650_set_auto_gain(&sd->gspca_dev,
+ sensor_settings[AUTO_GAIN_CTRL_IDX]);
+ return err;
+}
+
+int ov9650_start(struct sd *sd)
+{
+ u8 data;
+ int i, err = 0;
+ struct cam *cam = &sd->gspca_dev.cam;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ int width = cam->cam_mode[sd->gspca_dev.curr_mode].width;
+ int height = cam->cam_mode[sd->gspca_dev.curr_mode].height;
+ int ver_offs = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
+ int hor_offs = OV9650_LEFT_OFFSET;
+
+ if ((!dmi_check_system(ov9650_flip_dmi_table) &&
+ sensor_settings[VFLIP_IDX]) ||
+ (dmi_check_system(ov9650_flip_dmi_table) &&
+ !sensor_settings[VFLIP_IDX]))
+ ver_offs--;
+
+ if (width <= 320)
+ hor_offs /= 2;
+
+ /* Synthesize the vsync/hsync setup */
+ for (i = 0; i < ARRAY_SIZE(res_init_ov9650) && !err; i++) {
+ if (res_init_ov9650[i][0] == BRIDGE)
+ err = m5602_write_bridge(sd, res_init_ov9650[i][1],
+ res_init_ov9650[i][2]);
+ else if (res_init_ov9650[i][0] == SENSOR) {
+ data = res_init_ov9650[i][2];
+ err = m5602_write_sensor(sd,
+ res_init_ov9650[i][1], &data, 1);
+ }
+ }
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA,
+ ((ver_offs >> 8) & 0xff));
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (ver_offs & 0xff));
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height >> 8) & 0xff);
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, (height & 0xff));
+ if (err < 0)
+ return err;
+
+ for (i = 0; i < 2 && !err; i++)
+ err = m5602_write_bridge(sd, M5602_XB_VSYNC_PARA, 0);
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 2);
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA,
+ (hor_offs >> 8) & 0xff);
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA, hor_offs & 0xff);
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA,
+ ((width + hor_offs) >> 8) & 0xff);
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_HSYNC_PARA,
+ ((width + hor_offs) & 0xff));
+ if (err < 0)
+ return err;
+
+ err = m5602_write_bridge(sd, M5602_XB_SIG_INI, 0);
+ if (err < 0)
+ return err;
+
+ switch (width) {
+ case 640:
+ PDEBUG(D_V4L2, "Configuring camera for VGA mode");
+
+ data = OV9650_VGA_SELECT | OV9650_RGB_SELECT |
+ OV9650_RAW_RGB_SELECT;
+ err = m5602_write_sensor(sd, OV9650_COM7, &data, 1);
+ break;
+
+ case 352:
+ PDEBUG(D_V4L2, "Configuring camera for CIF mode");
+
+ data = OV9650_CIF_SELECT | OV9650_RGB_SELECT |
+ OV9650_RAW_RGB_SELECT;
+ err = m5602_write_sensor(sd, OV9650_COM7, &data, 1);
+ break;
+
+ case 320:
+ PDEBUG(D_V4L2, "Configuring camera for QVGA mode");
+
+ data = OV9650_QVGA_SELECT | OV9650_RGB_SELECT |
+ OV9650_RAW_RGB_SELECT;
+ err = m5602_write_sensor(sd, OV9650_COM7, &data, 1);
+ break;
+
+ case 176:
+ PDEBUG(D_V4L2, "Configuring camera for QCIF mode");
+
+ data = OV9650_QCIF_SELECT | OV9650_RGB_SELECT |
+ OV9650_RAW_RGB_SELECT;
+ err = m5602_write_sensor(sd, OV9650_COM7, &data, 1);
+ break;
+ }
+ return err;
+}
+
+int ov9650_stop(struct sd *sd)
+{
+ u8 data = OV9650_SOFT_SLEEP | OV9650_OUTPUT_DRIVE_2X;
+ return m5602_write_sensor(sd, OV9650_COM2, &data, 1);
+}
+
+void ov9650_disconnect(struct sd *sd)
+{
+ ov9650_stop(sd);
+
+ sd->sensor = NULL;
+ kfree(sd->sensor_priv);
+}
+
+static int ov9650_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 ov9650_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+ u8 i2c_data;
+ int err;
+
+ PDEBUG(D_V4L2, "Set exposure to %d", val);
+
+ sensor_settings[EXPOSURE_IDX] = val;
+ /* The 6 MSBs */
+ i2c_data = (val >> 10) & 0x3f;
+ err = m5602_write_sensor(sd, OV9650_AECHM,
+ &i2c_data, 1);
+ if (err < 0)
+ return err;
+
+ /* The 8 middle bits */
+ i2c_data = (val >> 2) & 0xff;
+ err = m5602_write_sensor(sd, OV9650_AECH,
+ &i2c_data, 1);
+ if (err < 0)
+ return err;
+
+ /* The 2 LSBs */
+ i2c_data = val & 0x03;
+ err = m5602_write_sensor(sd, OV9650_COM1, &i2c_data, 1);
+ return err;
+}
+
+static int ov9650_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 ov9650_set_gain(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ u8 i2c_data;
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ PDEBUG(D_V4L2, "Setting gain to %d", val);
+
+ sensor_settings[GAIN_IDX] = val;
+
+ /* The 2 MSB */
+ /* Read the OV9650_VREF register first to avoid
+ corrupting the VREF high and low bits */
+ err = m5602_read_sensor(sd, OV9650_VREF, &i2c_data, 1);
+ if (err < 0)
+ return err;
+
+ /* Mask away all uninteresting bits */
+ i2c_data = ((val & 0x0300) >> 2) |
+ (i2c_data & 0x3f);
+ err = m5602_write_sensor(sd, OV9650_VREF, &i2c_data, 1);
+ if (err < 0)
+ return err;
+
+ /* The 8 LSBs */
+ i2c_data = val & 0xff;
+ err = m5602_write_sensor(sd, OV9650_GAIN, &i2c_data, 1);
+ return err;
+}
+
+static int ov9650_get_red_balance(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ *val = sensor_settings[RED_BALANCE_IDX];
+ PDEBUG(D_V4L2, "Read red gain %d", *val);
+ return 0;
+}
+
+static int ov9650_set_red_balance(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ u8 i2c_data;
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ PDEBUG(D_V4L2, "Set red gain to %d", val);
+
+ sensor_settings[RED_BALANCE_IDX] = val;
+
+ i2c_data = val & 0xff;
+ err = m5602_write_sensor(sd, OV9650_RED, &i2c_data, 1);
+ return err;
+}
+
+static int ov9650_get_blue_balance(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ *val = sensor_settings[BLUE_BALANCE_IDX];
+ PDEBUG(D_V4L2, "Read blue gain %d", *val);
+
+ return 0;
+}
+
+static int ov9650_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ u8 i2c_data;
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ PDEBUG(D_V4L2, "Set blue gain to %d", val);
+
+ sensor_settings[BLUE_BALANCE_IDX] = val;
+
+ i2c_data = val & 0xff;
+ err = m5602_write_sensor(sd, OV9650_BLUE, &i2c_data, 1);
+ return err;
+}
+
+static int ov9650_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ *val = sensor_settings[HFLIP_IDX];
+ PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
+ return 0;
+}
+
+static int ov9650_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ u8 i2c_data;
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
+
+ sensor_settings[HFLIP_IDX] = val;
+
+ if (!dmi_check_system(ov9650_flip_dmi_table))
+ i2c_data = ((val & 0x01) << 5) |
+ (sensor_settings[VFLIP_IDX] << 4);
+ else
+ i2c_data = ((val & 0x01) << 5) |
+ (!sensor_settings[VFLIP_IDX] << 4);
+
+ err = m5602_write_sensor(sd, OV9650_MVFP, &i2c_data, 1);
+
+ return err;
+}
+
+static int ov9650_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ *val = sensor_settings[VFLIP_IDX];
+ PDEBUG(D_V4L2, "Read vertical flip %d", *val);
+
+ return 0;
+}
+
+static int ov9650_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ u8 i2c_data;
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ PDEBUG(D_V4L2, "Set vertical flip to %d", val);
+ sensor_settings[VFLIP_IDX] = val;
+
+ if (dmi_check_system(ov9650_flip_dmi_table))
+ val = !val;
+
+ i2c_data = ((val & 0x01) << 4) | (sensor_settings[VFLIP_IDX] << 5);
+ err = m5602_write_sensor(sd, OV9650_MVFP, &i2c_data, 1);
+ if (err < 0)
+ return err;
+
+ /* When vflip is toggled we need to readjust the bridge hsync/vsync */
+ if (gspca_dev->streaming)
+ err = ov9650_start(sd);
+
+ return err;
+}
+
+static int ov9650_get_auto_exposure(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ *val = sensor_settings[AUTO_EXPOSURE_IDX];
+ PDEBUG(D_V4L2, "Read auto exposure control %d", *val);
+ return 0;
+}
+
+static int ov9650_set_auto_exposure(struct gspca_dev *gspca_dev,
+ __s32 val)
+{
+ int err;
+ u8 i2c_data;
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ PDEBUG(D_V4L2, "Set auto exposure control to %d", val);
+
+ sensor_settings[AUTO_EXPOSURE_IDX] = val;
+ err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1);
+ if (err < 0)
+ return err;
+
+ i2c_data = ((i2c_data & 0xfe) | ((val & 0x01) << 0));
+
+ return m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
+}
+
+static int ov9650_get_auto_white_balance(struct gspca_dev *gspca_dev,
+ __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ *val = sensor_settings[AUTO_WHITE_BALANCE_IDX];
+ return 0;
+}
+
+static int ov9650_set_auto_white_balance(struct gspca_dev *gspca_dev,
+ __s32 val)
+{
+ int err;
+ u8 i2c_data;
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ PDEBUG(D_V4L2, "Set auto white balance to %d", val);
+
+ sensor_settings[AUTO_WHITE_BALANCE_IDX] = val;
+ err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1);
+ if (err < 0)
+ return err;
+
+ i2c_data = ((i2c_data & 0xfd) | ((val & 0x01) << 1));
+ err = m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
+
+ return err;
+}
+
+static int ov9650_get_auto_gain(struct gspca_dev *gspca_dev, __s32 *val)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ *val = sensor_settings[AUTO_GAIN_CTRL_IDX];
+ PDEBUG(D_V4L2, "Read auto gain control %d", *val);
+ return 0;
+}
+
+static int ov9650_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val)
+{
+ int err;
+ u8 i2c_data;
+ struct sd *sd = (struct sd *) gspca_dev;
+ s32 *sensor_settings = sd->sensor_priv;
+
+ PDEBUG(D_V4L2, "Set auto gain control to %d", val);
+
+ sensor_settings[AUTO_GAIN_CTRL_IDX] = val;
+ err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1);
+ if (err < 0)
+ return err;
+
+ i2c_data = ((i2c_data & 0xfb) | ((val & 0x01) << 2));
+
+ return m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1);
+}
+
+static void ov9650_dump_registers(struct sd *sd)
+{
+ int address;
+ pr_info("Dumping the ov9650 register state\n");
+ for (address = 0; address < 0xa9; address++) {
+ u8 value;
+ m5602_read_sensor(sd, address, &value, 1);
+ pr_info("register 0x%x contains 0x%x\n", address, value);
+ }
+
+ pr_info("ov9650 register state dump complete\n");
+
+ pr_info("Probing for which registers that are read/write\n");
+ for (address = 0; address < 0xff; address++) {
+ u8 old_value, ctrl_value;
+ u8 test_value[2] = {0xff, 0xff};
+
+ m5602_read_sensor(sd, address, &old_value, 1);
+ m5602_write_sensor(sd, address, test_value, 1);
+ m5602_read_sensor(sd, address, &ctrl_value, 1);
+
+ if (ctrl_value == test_value[0])
+ pr_info("register 0x%x is writeable\n", address);
+ else
+ pr_info("register 0x%x is read only\n", address);
+
+ /* Restore original value */
+ m5602_write_sensor(sd, address, &old_value, 1);
+ }
+}