diff options
Diffstat (limited to 'drivers/media/usb/gspca/m5602/m5602_ov9650.c')
| -rw-r--r-- | drivers/media/usb/gspca/m5602/m5602_ov9650.c | 881 |
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); + } +} |