This patch provides a V4L2 SoC Camera driver for OV6650 camera sensor, found
on OMAP1 SoC based Amstrad Delta videophone.
Since I have no experience with camera sensors, and the sensor documentation I
was able to find was not very comprehensive, I left most settings at their
default (reset) values, except for:
- those required for proper mediabus parameters and picture format setup,
- those used by controls.
Resulting picture quality is far from perfect, but better than nothing.
In order to be able to get / set the sensor frame rate from userspace, I
decided to provide two not yet SoC camera supported operations, g_parm and
s_parm. These can be used after applying patch 4/6 from this series,
"SoC Camera: add support for g_parm / s_parm operations".
Created and tested against linux-2.6.35-rc3 on Amstrad Delta.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@xxxxxxxxxxxx>
---
drivers/media/video/Kconfig | 6
drivers/media/video/Makefile | 1
drivers/media/video/ov6650.c | 1336 ++++++++++++++++++++++++++++++++++++++++
include/media/v4l2-chip-ident.h | 1
4 files changed, 1344 insertions(+)
--- linux-2.6.35-rc3.orig/drivers/media/video/Kconfig 2010-06-26 15:55:29.000000000 +0200
+++ linux-2.6.35-rc3/drivers/media/video/Kconfig 2010-07-02 04:12:02.000000000 +0200
@@ -913,6 +913,12 @@ config SOC_CAMERA_PLATFORM
help
This is a generic SoC camera platform driver, useful for testing
+config SOC_CAMERA_OV6650
+ tristate "ov6650 sensor support"
+ depends on SOC_CAMERA && I2C
+ help
+ This is a V4L2 SoC camera driver for the OmniVision OV6650 sensor
+
config SOC_CAMERA_OV772X
tristate "ov772x camera support"
depends on SOC_CAMERA && I2C
--- linux-2.6.35-rc3.orig/drivers/media/video/Makefile 2010-06-26 15:55:29.000000000 +0200
+++ linux-2.6.35-rc3/drivers/media/video/Makefile 2010-06-26 17:28:09.000000000 +0200
@@ -79,6 +79,7 @@ obj-$(CONFIG_SOC_CAMERA_MT9M111) += mt9m
obj-$(CONFIG_SOC_CAMERA_MT9T031) += mt9t031.o
obj-$(CONFIG_SOC_CAMERA_MT9T112) += mt9t112.o
obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o
+obj-$(CONFIG_SOC_CAMERA_OV6650) += ov6650.o
obj-$(CONFIG_SOC_CAMERA_OV772X) += ov772x.o
obj-$(CONFIG_SOC_CAMERA_OV9640) += ov9640.o
obj-$(CONFIG_SOC_CAMERA_RJ54N1) += rj54n1cb0c.o
--- linux-2.6.35-rc3.orig/drivers/media/video/ov6650.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.35-rc3/drivers/media/video/ov6650.c 2010-07-18 02:06:22.000000000 +0200
@@ -0,0 +1,1336 @@
+/*
+ * V4L2 SoC Camera driver for OmniVision OV6650 Camera Sensor
+ *
+ * Copyright (C) 2010 Janusz Krzysztofik <jkrzyszt@xxxxxxxxxxxx>
+ *
+ * Based on OmniVision OV96xx Camera Driver
+ * Copyright (C) 2009 Marek Vasut <marek.vasut@xxxxxxxxx>
+ *
+ * Based on ov772x camera driver:
+ * Copyright (C) 2008 Renesas Solutions Corp.
+ * Kuninori Morimoto <morimoto.kuninori@xxxxxxxxxxx>
+ *
+ * Based on ov7670 and soc_camera_platform driver,
+ * Copyright 2006-7 Jonathan Corbet <corbet@xxxxxxx>
+ * Copyright (C) 2008 Magnus Damm
+ * Copyright (C) 2008, Guennadi Liakhovetski <kernel@xxxxxxxxxxxxxx>
+ *
+ * Hardware specific bits initialy based on former work by Matt Callow
+ * drivers/media/video/omap/sensor_ov6650.c
+ * Copyright (C) 2006 Matt Callow
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/soc_camera.h>
+
+
+/* Register definitions */
+#define REG_GAIN 0x00 /* range 00 - 3F */
+#define REG_BLUE 0x01
+#define REG_RED 0x02
+#define REG_SAT 0x03 /* [7:4] saturation [0:3] reserved */
+#define REG_HUE 0x04 /* [7:6] rsrvd [5] hue en [4:0] hue */
+
+#define REG_BRT 0x06
+
+#define REG_PIDH 0x0a
+#define REG_PIDL 0x0b
+
+#define REG_AECH 0x10
+#define REG_CLKRC 0x11 /* Data Format and Internal Clock */
+ /* [7:6] Input system clock (MHz)*/
+ /* 00=8, 01=12, 10=16, 11=24 */
+ /* [5:0]: Internal Clock Pre-Scaler */
+#define REG_COMA 0x12 /* [7] Reset */
+#define REG_COMB 0x13
+#define REG_COMC 0x14
+#define REG_COMD 0x15
+#define REG_COML 0x16
+#define REG_HSTRT 0x17
+#define REG_HSTOP 0x18
+#define REG_VSTRT 0x19
+#define REG_VSTOP 0x1a
+#define REG_PSHFT 0x1b
+#define REG_MIDH 0x1c
+#define REG_MIDL 0x1d
+#define REG_HSYNS 0x1e
+#define REG_HSYNE 0x1f
+#define REG_COME 0x20
+#define REG_YOFF 0x21
+#define REG_UOFF 0x22
+#define REG_VOFF 0x23
+#define REG_AEW 0x24
+#define REG_AEB 0x25
+#define REG_COMF 0x26
+#define REG_COMG 0x27
+#define REG_COMH 0x28
+#define REG_COMI 0x29
+
+#define REG_FRARL 0x2b
+#define REG_COMJ 0x2c
+#define REG_COMK 0x2d
+#define REG_AVGY 0x2e
+#define REG_REF0 0x2f
+#define REG_REF1 0x30
+#define REG_REF2 0x31
+#define REG_FRAJH 0x32
+#define REG_FRAJL 0x33
+#define REG_FACT 0x34
+#define REG_L1AEC 0x35
+#define REG_AVGU 0x36
+#define REG_AVGV 0x37
+
+#define REG_SPCB 0x60
+#define REG_SPCC 0x61
+#define REG_GAM1 0x62
+#define REG_GAM2 0x63
+#define REG_GAM3 0x64
+#define REG_SPCD 0x65
+
+#define REG_SPCE 0x68
+#define REG_ADCL 0x69
+
+#define REG_RMCO 0x6c
+#define REG_GMCO 0x6d
+#define REG_BMCO 0x6e
+
+#define NUM_REGS (REG_BMCO + 1)
+
+
+/* Register bits, values, etc. */
+#define OV6650_PIDH 0x66 /* high byte of product ID number */
+#define OV6650_PIDL 0x50 /* low byte of product ID number */
+#define OV6650_MIDH 0x7F /* high byte of mfg ID */
+#define OV6650_MIDL 0xA2 /* low byte of mfg ID */
+
+#define DEF_GAIN 0x00
+#define DEF_BLUE 0x80
+#define DEF_RED 0x80
+
+#define SAT_SHIFT 4
+#define SAT_MASK 0xf
+#define SET_SAT(x) (((x) & SAT_MASK) << SAT_SHIFT)
+
+#define HUE_EN BIT(5)
+#define HUE_MASK 0x1f
+#define DEF_HUE 0x10
+#define SET_HUE(x) ((x) == DEF_HUE ? (x) : \
+ HUE_EN | ((x) & HUE_MASK))
+
+#define DEF_AECH 0x4D
+
+#define CLKRC_6MHz 0x00
+#define CLKRC_12MHz 0x40
+#define CLKRC_16MHz 0x80
+#define CLKRC_24MHz 0xc0
+#define CLKRC_DIV_MASK 0x3f
+#define GET_CLKRC_DIV(x) (((x) & CLKRC_DIV_MASK) + 1)
+
+#define COMA_RESET BIT(7)
+#define COMA_QCIF BIT(5)
+#define COMA_RAW_RGB BIT(4)
+#define COMA_RGB BIT(3)
+#define COMA_BW BIT(2)
+#define COMA_WORD_SWAP BIT(1)
+#define COMA_BYTE_SWAP BIT(0)
+#define DEF_COMA 0x00
+
+#define COMB_FLIP_V BIT(7)
+#define COMB_FLIP_H BIT(5)
+#define COMB_AWB BIT(2)
+#define COMB_AGC BIT(1)
+#define COMB_AEC BIT(0)
+
+#define COML_ONE_CHANNEL BIT(7)
+
+#define DEF_HSTRT 0x24
+#define DEF_HSTOP 0xd4
+#define DEF_VSTRT 0x04
+#define DEF_VSTOP 0x94
+
+#define COMF_HREF_LOW BIT(4)
+
+#define COMJ_PCLK_RISING BIT(4)
+#define COMJ_VSYNC_HIGH BIT(0)
+
+/* supported resolutions */
+#define W_QCIF (DEF_HSTOP - DEF_HSTRT)
+#define W_CIF (W_QCIF << 1)
+#define H_QCIF (DEF_VSTOP - DEF_VSTRT)
+#define H_CIF (H_QCIF << 1)
+
+#define FRAME_RATE_MAX 30
+
+
+struct ov6650_reg {
+ u8 reg;
+ u8 val;
+};
+
+struct ov6650 {
+ struct v4l2_subdev subdev;
+
+ int gain;
+ int blue;
+ int red;
+ int saturation;
+ int hue;
+ int brightness;
+ int exposure;
+ int gamma;
+ bool vflip;
+ bool hflip;
+ bool awb;
+ bool agc;
+ int aec;
+ bool hue_auto;
+ bool qcif;
+ unsigned long pclk_max; /* from resolution and format */
+ unsigned long pclk_limit; /* from host */
+ struct v4l2_fract timeperframe; /* as requested with s_parm */
+};
+
+
+/* default register setup */
+static const struct ov6650_reg ov6650_regs_dflt[] = {
+ { REG_COMA, DEF_COMA }, /* ~COMA_RESET */
+};
+
+static enum v4l2_mbus_pixelcode ov6650_codes[] = {
+ V4L2_MBUS_FMT_YUYV8_2X8_LE,
+ V4L2_MBUS_FMT_YUYV8_2X8_BE,
+ V4L2_MBUS_FMT_YVYU8_2X8_LE,
+ V4L2_MBUS_FMT_YVYU8_2X8_BE,
+ V4L2_MBUS_FMT_SBGGR8_1X8,
+ V4L2_MBUS_FMT_GREY8_1X8,
+};
+
+static const struct v4l2_queryctrl ov6650_controls[] = {
+ {
+ .id = V4L2_CID_AUTOGAIN,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "AGC",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 1,
+ },
+ {
+ .id = V4L2_CID_GAIN,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Gain",
+ .minimum = 0,
+ .maximum = 0x3f,
+ .step = 1,
+ .default_value = DEF_GAIN,
+ },
+ {
+ .id = V4L2_CID_AUTO_WHITE_BALANCE,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "AWB",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 1,
+ },
+ {
+ .id = V4L2_CID_BLUE_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Blue",
+ .minimum = 0,
+ .maximum = 0xff,
+ .step = 1,
+ .default_value = DEF_BLUE,
+ },
+ {
+ .id = V4L2_CID_RED_BALANCE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Red",
+ .minimum = 0,
+ .maximum = 0xff,
+ .step = 1,
+ .default_value = DEF_RED,
+ },
+ {
+ .id = V4L2_CID_SATURATION,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Saturation",
+ .minimum = 0,
+ .maximum = 0xf,
+ .step = 1,
+ .default_value = 0x8,
+ },
+ {
+ .id = V4L2_CID_HUE_AUTO,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Auto Hue",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 1,
+ },
+ {
+ .id = V4L2_CID_HUE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Hue",
+ .minimum = 0,
+ .maximum = 0x1f,
+ .step = 1,
+ .default_value = DEF_HUE,
+ },
+ {
+ .id = V4L2_CID_BRIGHTNESS,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Brightness",
+ .minimum = 0,
+ .maximum = 0xff,
+ .step = 1,
+ .default_value = 0x80,
+ },
+ {
+ .id = V4L2_CID_EXPOSURE_AUTO,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "AEC",
+ .minimum = 0,
+ .maximum = 3,
+ .step = 1,
+ .default_value = 0,
+ },
+ {
+ .id = V4L2_CID_EXPOSURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Exposure",
+ .minimum = 0,
+ .maximum = 0xff,
+ .step = 1,
+ .default_value = DEF_AECH,
+ },
+ {
+ .id = V4L2_CID_GAMMA,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Gamma",
+ .minimum = 0,
+ .maximum = 0xff,
+ .step = 1,
+ .default_value = 0x12,
+ },
+ {
+ .id = V4L2_CID_VFLIP,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Flip Vertically",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 0,
+ },
+ {
+ .id = V4L2_CID_HFLIP,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Flip Horizontally",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 0,
+ },
+};
+
+/* read a register */
+static int ov6650_reg_read(struct i2c_client *client, u8 reg, u8 *val)
+{
+ int ret;
+ u8 data = reg;
+ struct i2c_msg msg = {
+ .addr = client->addr,
+ .flags = 0,
+ .len = 1,
+ .buf = &data,
+ };
+
+ ret = i2c_transfer(client->adapter, &msg, 1);
+ if (ret < 0)
+ goto err;
+
+ msg.flags = I2C_M_RD;
+ ret = i2c_transfer(client->adapter, &msg, 1);
+ if (ret < 0)
+ goto err;
+
+ *val = data;
+ return 0;
+
+err:
+ dev_err(&client->dev, "Failed reading register 0x%02x!\n", reg);
+ return ret;
+}
+
+/* write a register */
+static int ov6650_reg_write(struct i2c_client *client, u8 reg, u8 val)
+{
+ int ret;
+ u8 _val;
+ unsigned char data[2] = { reg, val };
+ struct i2c_msg msg = {
+ .addr = client->addr,
+ .flags = 0,
+ .len = 2,
+ .buf = data,
+ };
+
+ ret = i2c_transfer(client->adapter, &msg, 1);
+ if (ret < 0) {
+ dev_err(&client->dev, "Failed writing register 0x%02x!\n", reg);
+ return ret;
+ }
+ msleep(1);
+
+ /* we have to read the register back ... no idea why, maybe HW bug */
+ ret = ov6650_reg_read(client, reg, &_val);
+ if (ret)
+ dev_err(&client->dev,
+ "Failed reading back register 0x%02x!\n", reg);
+
+ return 0;
+}
+
+
+/* Read a register, alter its bits, write it back */
+static int ov6650_reg_rmw(struct i2c_client *client, u8 reg, u8 set, u8 mask)
+{
+ u8 val;
+ int ret;
+
+ ret = ov6650_reg_read(client, reg, &val);
+ if (ret) {
+ dev_err(&client->dev,
+ "[Read]-Modify-Write of register %02x failed!\n", reg);
+ return val;
+ }
+
+ val &= ~mask;
+ val |= set;
+
+ ret = ov6650_reg_write(client, reg, val);
+ if (ret)
+ dev_err(&client->dev,
+ "Read-Modify-[Write] of register %02x failed!\n", reg);
+
+ return ret;
+}
+
+/* Soft reset the camera. This has nothing to do with the RESET pin! */
+static int ov6650_reset(struct i2c_client *client)
+{
+ int ret;
+
+ dev_dbg(&client->dev, "reset\n");
+
+ ret = ov6650_reg_rmw(client, REG_COMA, COMA_RESET, 0);
+ if (ret)
+ dev_err(&client->dev,
+ "An error occured while entering soft reset!\n");
+
+ return ret;
+}
+
+static struct ov6650 *to_ov6650(const struct i2c_client *client)
+{
+ return container_of(i2c_get_clientdata(client), struct ov6650, subdev);
+}
+
+/* Start/Stop streaming from the device */
+static int ov6650_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ return 0;
+}
+
+/* Alter bus settings on camera side */
+static int ov6650_set_bus_param(struct soc_camera_device *icd,
+ unsigned long flags)
+{
+ struct soc_camera_link *icl = to_soc_camera_link(icd);
+ struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
+ int ret;
+
+ flags = soc_camera_apply_sensor_flags(icl, flags);
+
+ if (flags & SOCAM_PCLK_SAMPLE_RISING)
+ ret = ov6650_reg_rmw(client, REG_COMJ, COMJ_PCLK_RISING, 0);
+ else
+ ret = ov6650_reg_rmw(client, REG_COMJ, 0, COMJ_PCLK_RISING);
+ if (ret)
+ goto out;
+
+ if (flags & SOCAM_HSYNC_ACTIVE_LOW)
+ ret = ov6650_reg_rmw(client, REG_COMF, COMF_HREF_LOW, 0);
+ else
+ ret = ov6650_reg_rmw(client, REG_COMF, 0, COMF_HREF_LOW);
+ if (ret)
+ goto out;
+
+ if (flags & SOCAM_VSYNC_ACTIVE_HIGH)
+ ret = ov6650_reg_rmw(client, REG_COMJ, COMJ_VSYNC_HIGH, 0);
+ else
+ ret = ov6650_reg_rmw(client, REG_COMJ, 0, COMJ_VSYNC_HIGH);
+out:
+ return ret;
+}
+
+/* Request bus settings on camera side */
+static unsigned long ov6650_query_bus_param(struct soc_camera_device *icd)
+{
+ struct soc_camera_link *icl = to_soc_camera_link(icd);
+
+ unsigned long flags = SOCAM_MASTER | \
+ SOCAM_PCLK_SAMPLE_RISING | SOCAM_PCLK_SAMPLE_FALLING | \
+ SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_LOW | \
+ SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_LOW | \
+ SOCAM_DATA_ACTIVE_HIGH | SOCAM_DATAWIDTH_8;
+
+ return soc_camera_apply_sensor_flags(icl, flags);
+}
+
+/* Get status of additional camera capabilities */
+static int ov6650_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ struct i2c_client *client = sd->priv;
+ struct ov6650 *priv = to_ov6650(client);
+ uint8_t reg;
+ int ret = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUTOGAIN:
+ ctrl->value = priv->agc;
+ break;
+ case V4L2_CID_GAIN:
+ if (priv->agc) {
+ ret = ov6650_reg_read(client, REG_GAIN, ®);
+ ctrl->value = reg;
+ } else {
+ ctrl->value = priv->gain;
+ }
+ break;
+ case V4L2_CID_AUTO_WHITE_BALANCE:
+ ctrl->value = priv->awb;
+ break;
+ case V4L2_CID_BLUE_BALANCE:
+ if (priv->awb) {
+ ret = ov6650_reg_read(client, REG_BLUE, ®);
+ ctrl->value = reg;
+ } else {
+ ctrl->value = priv->blue;
+ }
+ break;
+ case V4L2_CID_RED_BALANCE:
+ if (priv->awb) {
+ ret = ov6650_reg_read(client, REG_RED, ®);
+ ctrl->value = reg;
+ } else {
+ ctrl->value = priv->red;
+ }
+ break;
+ case V4L2_CID_SATURATION:
+ ctrl->value = priv->saturation;
+ break;
+ case V4L2_CID_HUE_AUTO:
+ ctrl->value = priv->hue_auto;
+ break;
+ case V4L2_CID_HUE:
+ if (priv->hue_auto) {
+ ret = ov6650_reg_read(client, REG_HUE, ®);
+ ctrl->value = reg & 0x1f;
+ } else {
+ ctrl->value = priv->hue;
+ }
+ break;
+ case V4L2_CID_BRIGHTNESS:
+ ctrl->value = priv->brightness;
+ break;
+ case V4L2_CID_EXPOSURE_AUTO:
+ ctrl->value = priv->aec;
+ break;
+ case V4L2_CID_EXPOSURE:
+ if (priv->aec) {
+ ret = ov6650_reg_read(client, REG_AECH, ®);
+ ctrl->value = reg;
+ } else {
+ ctrl->value = priv->exposure;
+ }
+ break;
+ case V4L2_CID_GAMMA:
+ ctrl->value = priv->gamma;
+ break;
+ case V4L2_CID_VFLIP:
+ ctrl->value = priv->vflip;
+ break;
+ case V4L2_CID_HFLIP:
+ ctrl->value = priv->hflip;
+ break;
+ }
+ return ret;
+}
+
+/* Set status of additional camera capabilities */
+static int ov6650_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ struct i2c_client *client = sd->priv;
+ struct ov6650 *priv = to_ov6650(client);
+ bool automatic;
+ int ret = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_AUTOGAIN:
+ if (ctrl->value) {
+ ret = ov6650_reg_write(client, REG_GAIN, DEF_GAIN);
+ if (ret)
+ break;
+ priv->gain = DEF_GAIN;
+ ret = ov6650_reg_rmw(client, REG_COMB, COMB_AGC, 0);
+ } else {
+ ret = ov6650_reg_rmw(client, REG_COMB, 0, COMB_AGC);
+ }
+ if (ret)
+ break;
+ priv->agc = ctrl->value;
+ break;
+ case V4L2_CID_GAIN:
+ ret = ov6650_reg_write(client, REG_GAIN, ctrl->value);
+ if (ret)
+ break;
+ priv->gain = ctrl->value;
+ automatic = (priv->gain == DEF_GAIN);
+ if (automatic)
+ ret = ov6650_reg_rmw(client, REG_COMB, COMB_AGC, 0);
+ else
+ ret = ov6650_reg_rmw(client, REG_COMB, 0, COMB_AGC);
+ if (ret)
+ break;
+ priv->agc = automatic;
+ break;
+ case V4L2_CID_AUTO_WHITE_BALANCE:
+ if (ctrl->value) {
+ ret = ov6650_reg_write(client, REG_BLUE, DEF_BLUE);
+ if (ret)
+ break;
+ priv->blue = DEF_BLUE;
+ ret = ov6650_reg_write(client, REG_RED, DEF_RED);
+ if (ret)
+ break;
+ priv->red = DEF_RED;
+ ret = ov6650_reg_rmw(client, REG_COMB, COMB_AWB, 0);
+ } else {
+ ret = ov6650_reg_rmw(client, REG_COMB, 0, COMB_AWB);
+ }
+ if (ret)
+ break;
+ priv->awb = ctrl->value;
+ break;
+ case V4L2_CID_BLUE_BALANCE:
+ ret = ov6650_reg_write(client, REG_BLUE, ctrl->value);
+ if (ret)
+ break;
+ priv->blue = ctrl->value;
+ automatic = (priv->blue == DEF_BLUE &&
+ priv->red == DEF_RED);
+ if (automatic)
+ ret = ov6650_reg_rmw(client, REG_COMB, COMB_AWB, 0);
+ else
+ ret = ov6650_reg_rmw(client, REG_COMB, 0, COMB_AWB);
+ if (ret)
+ break;
+ priv->awb = automatic;
+ break;
+ case V4L2_CID_RED_BALANCE:
+ ret = ov6650_reg_write(client, REG_RED, ctrl->value);
+ if (ret)
+ break;
+ priv->red = ctrl->value;
+ automatic = (priv->blue == DEF_BLUE &&
+ priv->red == DEF_RED);
+ if (automatic)
+ ret = ov6650_reg_rmw(client, REG_COMB, COMB_AWB, 0);
+ else
+ ret = ov6650_reg_rmw(client, REG_COMB, 0, COMB_AWB);
+ if (ret)
+ break;
+ priv->awb = automatic;
+ break;
+ case V4L2_CID_SATURATION:
+ ret = ov6650_reg_rmw(client, REG_SAT, SET_SAT(ctrl->value),
+ SET_SAT(SAT_MASK));
+ if (ret)
+ break;
+ priv->saturation = ctrl->value;
+ break;
+ case V4L2_CID_HUE_AUTO:
+ if (ctrl->value) {
+ ret = ov6650_reg_rmw(client, REG_HUE,
+ SET_HUE(DEF_HUE), SET_HUE(HUE_MASK));
+ if (ret)
+ break;
+ priv->hue = DEF_HUE;
+ } else {
+ ret = ov6650_reg_rmw(client, REG_HUE, HUE_EN, 0);
+ }
+ if (ret)
+ break;
+ priv->hue_auto = ctrl->value;
+ break;
+ case V4L2_CID_HUE:
+ ret = ov6650_reg_rmw(client, REG_HUE, SET_HUE(ctrl->value),
+ SET_HUE(HUE_MASK));
+ if (ret)
+ break;
+ priv->hue = ctrl->value;
+ priv->hue_auto = (priv->hue == DEF_HUE);
+ break;
+ case V4L2_CID_BRIGHTNESS:
+ ret = ov6650_reg_write(client, REG_BRT, ctrl->value);
+ if (ret)
+ break;
+ priv->brightness = ctrl->value;
+ break;
+ case V4L2_CID_EXPOSURE_AUTO:
+ switch (ctrl->value) {
+ case V4L2_EXPOSURE_AUTO:
+ ret = ov6650_reg_write(client, REG_AECH, DEF_AECH);
+ if (ret)
+ break;
+ priv->exposure = DEF_AECH;
+ ret = ov6650_reg_rmw(client, REG_COMB, COMB_AEC, 0);
+ break;
+ default:
+ ret = ov6650_reg_rmw(client, REG_COMB, 0, COMB_AEC);
+ break;
+ }
+ if (ret)
+ break;
+ priv->aec = ctrl->value;
+ break;
+ case V4L2_CID_EXPOSURE:
+ ret = ov6650_reg_write(client, REG_AECH, ctrl->value);
+ if (ret)
+ break;
+ priv->exposure = ctrl->value;
+ automatic = (priv->exposure == DEF_AECH);
+ if (automatic)
+ ret = ov6650_reg_rmw(client, REG_COMB, COMB_AEC, 0);
+ else
+ ret = ov6650_reg_rmw(client, REG_COMB, 0, COMB_AEC);
+ if (ret)
+ break;
+ priv->aec = automatic ? V4L2_EXPOSURE_AUTO :
+ V4L2_EXPOSURE_MANUAL;
+ break;
+ case V4L2_CID_GAMMA:
+ ret = ov6650_reg_write(client, REG_GAM1, ctrl->value);
+ if (ret)
+ break;
+ priv->gamma = ctrl->value;
+ break;
+ case V4L2_CID_VFLIP:
+ if (ctrl->value)
+ ret = ov6650_reg_rmw(client, REG_COMB,
+ COMB_FLIP_V, 0);
+ else
+ ret = ov6650_reg_rmw(client, REG_COMB,
+ 0, COMB_FLIP_V);
+ if (ret)
+ break;
+ priv->vflip = ctrl->value;
+ break;
+ case V4L2_CID_HFLIP:
+ if (ctrl->value)
+ ret = ov6650_reg_rmw(client, REG_COMB,
+ COMB_FLIP_H, 0);
+ else
+ ret = ov6650_reg_rmw(client, REG_COMB,
+ 0, COMB_FLIP_H);
+ if (ret)
+ break;
+ priv->hflip = ctrl->value;
+ break;
+ }
+
+ return ret;
+}
+
+/* Get chip identification */
+static int ov6650_g_chip_ident(struct v4l2_subdev *sd,
+ struct v4l2_dbg_chip_ident *id)
+{
+ id->ident = V4L2_IDENT_OV6650;
+ id->revision = 0;
+
+ return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int ov6650_get_register(struct v4l2_subdev *sd,
+ struct v4l2_dbg_register *reg)
+{
+ struct i2c_client *client = sd->priv;
+ int ret;
+ u8 val;
+
+ if (reg->reg & ~0xff)
+ return -EINVAL;
+
+ reg->size = 1;
+
+ ret = ov6650_reg_read(client, reg->reg, &val);
+ if (ret)
+ return ret;
+
+ reg->val = (__u64)val;
+
+ return 0;
+}
+
+static int ov6650_set_register(struct v4l2_subdev *sd,
+ struct v4l2_dbg_register *reg)
+{
+ struct i2c_client *client = sd->priv;
+
+ if (reg->reg & ~0xff || reg->val & ~0xff)
+ return -EINVAL;
+
+ return ov6650_reg_write(client, reg->reg, reg->val);
+}
+#endif
+
+/* select nearest higher resolution for capture */
+static void ov6650_res_roundup(u32 *width, u32 *height)
+{
+ int i;
+ enum { QCIF, CIF };
+ int res_x[] = { 176, 352 };
+ int res_y[] = { 144, 288 };
+
+ for (i = 0; i < ARRAY_SIZE(res_x); i++) {
+ if (res_x[i] >= *width && res_y[i] >= *height) {
+ *width = res_x[i];
+ *height = res_y[i];
+ return;
+ }
+ }
+
+ *width = res_x[CIF];
+ *height = res_y[CIF];
+}
+
+/* program default register values */
+static int ov6650_prog_dflt(struct i2c_client *client)
+{
+ int i, ret;
+
+ dev_dbg(&client->dev, "reinitializing\n");
+
+ for (i = 0; i < ARRAY_SIZE(ov6650_regs_dflt); i++) {
+ ret = ov6650_reg_write(client, ov6650_regs_dflt[i].reg,
+ ov6650_regs_dflt[i].val);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+/* set the format we will capture in */
+static int ov6650_s_fmt(struct v4l2_subdev *sd,
+ struct v4l2_mbus_framefmt *mf)
+{
+ struct i2c_client *client = sd->priv;
+ struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_sense *sense = icd->sense;
+ struct ov6650 *priv = to_ov6650(client);
+ enum v4l2_colorspace cspace;
+ enum v4l2_mbus_pixelcode code = mf->code;
+ unsigned long pclk;
+ u8 coma_set = 0, coma_mask = 0, coml_set = 0, coml_mask = 0, clkrc;
+ int ret;
+
+ /* select color matrix configuration for given color encoding */
+ switch (code) {
+ case V4L2_MBUS_FMT_GREY8_1X8:
+ dev_dbg(&client->dev, "pixel format GREY8_1X8\n");
+ coma_set |= COMA_BW;
+ coma_mask |= COMA_RGB | COMA_WORD_SWAP | COMA_BYTE_SWAP;
+ coml_mask |= COML_ONE_CHANNEL;
+ cspace = V4L2_COLORSPACE_JPEG;
+ priv->pclk_max = 4000000;
+ break;
+ case V4L2_MBUS_FMT_YUYV8_2X8_LE:
+ dev_dbg(&client->dev, "pixel format YUYV8_2X8_LE\n");
+ coma_set |= COMA_WORD_SWAP;
+ coma_mask |= COMA_RGB | COMA_BW | COMA_BYTE_SWAP;
+ goto yuv;
+ case V4L2_MBUS_FMT_YVYU8_2X8_LE:
+ dev_dbg(&client->dev, "pixel format YVYU8_2X8_LE (untested)\n");
+ coma_mask |= COMA_RGB | COMA_BW | COMA_WORD_SWAP |
+ COMA_BYTE_SWAP;
+ goto yuv;
+ case V4L2_MBUS_FMT_YUYV8_2X8_BE:
+ dev_dbg(&client->dev, "pixel format YUYV8_2X8_BE\n");
+ if (mf->width == W_CIF) {
+ coma_set |= COMA_BYTE_SWAP | COMA_WORD_SWAP;
+ coma_mask |= COMA_RGB | COMA_BW;
+ } else {
+ coma_set |= COMA_BYTE_SWAP;
+ coma_mask |= COMA_RGB | COMA_BW | COMA_WORD_SWAP;
+ }
+ goto yuv;
+ case V4L2_MBUS_FMT_YVYU8_2X8_BE:
+ dev_dbg(&client->dev, "pixel format YVYU8_2X8_BE (untested)\n");
+ if (mf->width == W_CIF) {
+ coma_set |= COMA_BYTE_SWAP;
+ coma_mask |= COMA_RGB | COMA_BW | COMA_WORD_SWAP;
+ } else {
+ coma_set |= COMA_BYTE_SWAP | COMA_WORD_SWAP;
+ coma_mask |= COMA_RGB | COMA_BW;
+ }
+yuv:
+ coml_set |= COML_ONE_CHANNEL;
+ cspace = V4L2_COLORSPACE_JPEG;
+ priv->pclk_max = 8000000;
+ break;
+ case V4L2_MBUS_FMT_SBGGR8_1X8:
+ dev_dbg(&client->dev, "pixel format SBGGR8_1X8 (untested)\n");
+ coma_set |= COMA_RAW_RGB | COMA_RGB;
+ coma_mask |= COMA_BW | COMA_BYTE_SWAP | COMA_WORD_SWAP;
+ coml_mask |= COML_ONE_CHANNEL;
+ cspace = V4L2_COLORSPACE_SRGB;
+ priv->pclk_max = 4000000;
+ break;
+ default:
+ dev_err(&client->dev, "Pixel format not handled : %x\n", code);
+ return -EINVAL;
+ }
+
+ /* select register configuration for given resolution */
+ ov6650_res_roundup(&mf->width, &mf->height);
+
+ switch (mf->width) {
+ case W_QCIF:
+ dev_dbg(&client->dev, "resolution QCIF\n");
+ priv->qcif = 1;
+ coma_set |= COMA_QCIF;
+ priv->pclk_max /= 2;
+ break;
+ case W_CIF:
+ dev_dbg(&client->dev, "resolution CIF\n");
+ priv->qcif = 0;
+ coma_mask |= COMA_QCIF;
+ break;
+ default:
+ dev_err(&client->dev, "unspported resolution!\n");
+ return -EINVAL;
+ }
+
+ if (priv->timeperframe.numerator && priv->timeperframe.denominator)
+ pclk = priv->pclk_max * priv->timeperframe.denominator /
+ (FRAME_RATE_MAX * priv->timeperframe.numerator);
+ else
+ pclk = priv->pclk_max;
+
+ if (sense) {
+ if (sense->master_clock == 8000000) {
+ dev_dbg(&client->dev, "8MHz input clock\n");
+ clkrc = CLKRC_6MHz;
+ } else if (sense->master_clock == 12000000) {
+ dev_dbg(&client->dev, "12MHz input clock\n");
+ clkrc = CLKRC_12MHz;
+ } else if (sense->master_clock == 16000000) {
+ dev_dbg(&client->dev, "16MHz input clock\n");
+ clkrc = CLKRC_16MHz;
+ } else if (sense->master_clock == 24000000) {
+ dev_dbg(&client->dev, "24MHz input clock\n");
+ clkrc = CLKRC_24MHz;
+ } else {
+ dev_err(&client->dev,
+ "unspported input clock, check platform data"
+ "\n");
+ return -EINVAL;
+ }
+ priv->pclk_limit = sense->pixel_clock_max;
+ if (priv->pclk_limit &&
+ (priv->pclk_limit < pclk))
+ pclk = priv->pclk_limit;
+ } else {
+ priv->pclk_limit = 0;
+ clkrc = 0xc0;
+ dev_dbg(&client->dev, "using default 24MHz input clock\n");
+ }
+
+ clkrc |= (priv->pclk_max - 1) / pclk;
+ pclk = priv->pclk_max / GET_CLKRC_DIV(clkrc);
+ dev_dbg(&client->dev, "pixel clock divider: %ld.%ld\n",
+ sense->master_clock / pclk,
+ 10 * sense->master_clock % pclk / pclk);
+
+ ov6650_reset(client);
+
+ ret = ov6650_prog_dflt(client);
+ if (ret)
+ return ret;
+
+
+ ret = ov6650_reg_rmw(client, REG_COMA, coma_set, coma_mask);
+ if (!ret)
+ ret = ov6650_reg_write(client, REG_CLKRC, clkrc);
+ if (!ret)
+ ret = ov6650_reg_rmw(client, REG_COML, coml_set, coml_mask);
+
+ if (!ret) {
+ mf->code = code;
+ mf->colorspace = cspace;
+ }
+
+ return ret;
+}
+
+static int ov6650_try_fmt(struct v4l2_subdev *sd,
+ struct v4l2_mbus_framefmt *mf)
+{
+ ov6650_res_roundup(&mf->width, &mf->height);
+
+ mf->field = V4L2_FIELD_NONE;
+
+ switch (mf->code) {
+ case V4L2_MBUS_FMT_Y10_1X10:
+ mf->code = V4L2_MBUS_FMT_GREY8_1X8;
+ case V4L2_MBUS_FMT_GREY8_1X8:
+ case V4L2_MBUS_FMT_YVYU8_2X8_LE:
+ case V4L2_MBUS_FMT_YUYV8_2X8_LE:
+ case V4L2_MBUS_FMT_YVYU8_2X8_BE:
+ case V4L2_MBUS_FMT_YUYV8_2X8_BE:
+ mf->colorspace = V4L2_COLORSPACE_JPEG;
+ break;
+ default:
+ mf->code = V4L2_MBUS_FMT_SBGGR8_1X8;
+ case V4L2_MBUS_FMT_SBGGR8_1X8:
+ mf->colorspace = V4L2_COLORSPACE_SRGB;
+ break;
+ }
+
+ return 0;
+}
+
+static int ov6650_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
+ enum v4l2_mbus_pixelcode *code)
+{
+ if ((unsigned int)index >= ARRAY_SIZE(ov6650_codes))
+ return -EINVAL;
+
+ *code = ov6650_codes[index];
+ return 0;
+}
+
+static int ov6650_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
+{
+ struct i2c_client *client = sd->priv;
+ struct ov6650 *priv = to_ov6650(client);
+ int shift = !priv->qcif;
+
+ if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ /* Crop limits depend on selected frame format (CIF/QCIF) */
+ a->bounds.left = DEF_HSTRT << shift;
+ a->bounds.top = DEF_VSTRT << shift;
+ a->bounds.width = W_QCIF << shift;
+ a->bounds.height = H_QCIF << shift;
+ /* REVISIT: should defrect provide actual or default geometry? */
+ a->defrect = a->bounds;
+ a->pixelaspect.numerator = 1;
+ a->pixelaspect.denominator = 1;
+
+ return 0;
+}
+
+static int ov6650_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
+{
+ struct i2c_client *client = sd->priv;
+ struct ov6650 *priv = to_ov6650(client);
+ struct v4l2_rect *rect = &a->c;
+ int shift = !priv->qcif;
+ u8 hstrt, vstrt, hstop, vstop;
+ int ret;
+
+ if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ ret = ov6650_reg_read(client, REG_HSTRT, &hstrt);
+ if (!ret)
+ ret = ov6650_reg_read(client, REG_HSTOP, &hstop);
+ if (!ret)
+ ret = ov6650_reg_read(client, REG_VSTRT, &vstrt);
+ if (!ret)
+ ret = ov6650_reg_read(client, REG_VSTOP, &vstop);
+
+ if (!ret) {
+ rect->left = hstrt << shift;
+ rect->top = vstrt << shift;
+ rect->width = (hstop - hstrt) << shift;
+ rect->height = (vstop - vstrt) << shift;
+ }
+
+ return ret;
+}
+
+static int ov6650_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
+{
+ struct i2c_client *client = sd->priv;
+ struct ov6650 *priv = to_ov6650(client);
+ struct v4l2_rect *rect = &a->c;
+ int shift = !priv->qcif;
+ u8 hstrt, vstrt, hstop, vstop;
+ int ret;
+
+ if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ hstrt = rect->left >> shift;
+ vstrt = rect->top >> shift;
+ hstop = hstrt + (rect->width >> shift);
+ vstop = vstrt + (rect->height >> shift);
+
+ if ((hstop > DEF_HSTOP) || (vstop > DEF_VSTOP)) {
+ dev_err(&client->dev, "Invalid window geometry!\n");
+ return -EINVAL;
+ }
+
+ ret = ov6650_reg_write(client, REG_HSTRT, hstrt);
+ if (!ret)
+ ret = ov6650_reg_write(client, REG_HSTOP, hstop);
+ if (!ret)
+ ret = ov6650_reg_write(client, REG_VSTRT, vstrt);
+ if (!ret)
+ ret = ov6650_reg_write(client, REG_VSTOP, vstop);
+
+ return ret;
+}
+
+static int ov6650_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms)
+{
+ struct i2c_client *client = sd->priv;
+ struct v4l2_captureparm *cp = &parms->parm.capture;
+ u8 clkrc;
+ int ret;
+
+ if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ ret = ov6650_reg_read(client, REG_CLKRC, &clkrc);
+ if (ret < 0)
+ return ret;
+
+ memset(cp, 0, sizeof(struct v4l2_captureparm));
+ cp->capability = V4L2_CAP_TIMEPERFRAME;
+ cp->timeperframe.numerator = GET_CLKRC_DIV(clkrc);
+ cp->timeperframe.denominator = FRAME_RATE_MAX;
+
+ dev_dbg(&client->dev, "Frame interval: %u/%u\n",
+ cp->timeperframe.numerator, cp->timeperframe.denominator);
+
+ return 0;
+}
+
+static int ov6650_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms)
+{
+ struct i2c_client *client = sd->priv;
+ struct ov6650 *priv = to_ov6650(client);
+ struct v4l2_captureparm *cp = &parms->parm.capture;
+ struct v4l2_fract *tpf = &cp->timeperframe;
+ int div, ret;
+
+ if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ if (cp->extendedmode != 0)
+ return -EINVAL;
+
+ if (tpf->numerator == 0 || tpf->denominator == 0)
+ div = 1; /* Reset to full rate */
+ else
+ div = (tpf->numerator * FRAME_RATE_MAX) / tpf->denominator;
+
+ if (div == 0)
+ div = 1;
+ else if (div > CLKRC_DIV_MASK + 1)
+ div = CLKRC_DIV_MASK + 1;
+
+ if (priv->pclk_max && priv->pclk_limit) {
+ ret = (priv->pclk_max - 1) / priv->pclk_limit;
+ if (div < ret)
+ div = ret;
+ }
+
+ ret = ov6650_reg_rmw(client, REG_CLKRC, div - 1, CLKRC_DIV_MASK);
+ if (!ret) {
+ priv->timeperframe.numerator = tpf->numerator = FRAME_RATE_MAX;
+ priv->timeperframe.denominator = tpf->denominator = div;
+ }
+
+ return ret;
+}
+
+static int ov6650_video_probe(struct soc_camera_device *icd,
+ struct i2c_client *client)
+{
+ u8 pidh, pidl, midh, midl;
+ int ret = 0;
+
+ /*
+ * check and show product ID and manufacturer ID
+ */
+ ret = ov6650_reg_read(client, REG_PIDH, &pidh);
+ if (!ret)
+ ret = ov6650_reg_read(client, REG_PIDL, &pidl);
+ if (!ret)
+ ret = ov6650_reg_read(client, REG_MIDH, &midh);
+ if (!ret)
+ ret = ov6650_reg_read(client, REG_MIDL, &midl);
+
+ if (ret)
+ goto err;
+
+ if ((pidh != OV6650_PIDH) || (pidl != OV6650_PIDL)) {
+ dev_err(&client->dev, "Product ID error %x:%x\n", pidh, pidl);
+ ret = -ENODEV;
+ goto err;
+ }
+
+ dev_info(&client->dev, "ov6650 Product ID %0x:%0x Manufacturer ID %x:%x"
+ "\n", pidh, pidl, midh, midl);
+
+err:
+ return ret;
+}
+
+static struct soc_camera_ops ov6650_ops = {
+ .set_bus_param = ov6650_set_bus_param,
+ .query_bus_param = ov6650_query_bus_param,
+ .controls = ov6650_controls,
+ .num_controls = ARRAY_SIZE(ov6650_controls),
+};
+
+static struct v4l2_subdev_core_ops ov6650_core_ops = {
+ .g_ctrl = ov6650_g_ctrl,
+ .s_ctrl = ov6650_s_ctrl,
+ .g_chip_ident = ov6650_g_chip_ident,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .g_register = ov6650_get_register,
+ .s_register = ov6650_set_register,
+#endif
+
+};
+
+static struct v4l2_subdev_video_ops ov6650_video_ops = {
+ .s_stream = ov6650_s_stream,
+ .s_mbus_fmt = ov6650_s_fmt,
+ .try_mbus_fmt = ov6650_try_fmt,
+ .enum_mbus_fmt = ov6650_enum_fmt,
+ .cropcap = ov6650_cropcap,
+ .g_crop = ov6650_g_crop,
+ .s_crop = ov6650_s_crop,
+ .g_parm = ov6650_g_parm,
+ .s_parm = ov6650_s_parm,
+
+};
+
+static struct v4l2_subdev_ops ov6650_subdev_ops = {
+ .core = &ov6650_core_ops,
+ .video = &ov6650_video_ops,
+};
+
+/*
+ * i2c_driver function
+ */
+static int ov6650_probe(struct i2c_client *client,
+ const struct i2c_device_id *did)
+{
+ struct ov6650 *priv;
+ struct soc_camera_device *icd = client->dev.platform_data;
+ struct soc_camera_link *icl;
+ int ret;
+
+ if (!icd) {
+ dev_err(&client->dev, "Missing soc-camera data!\n");
+ return -EINVAL;
+ }
+
+ icl = to_soc_camera_link(icd);
+ if (!icl) {
+ dev_err(&client->dev, "Missing platform_data for driver\n");
+ return -EINVAL;
+ }
+
+ priv = kzalloc(sizeof(struct ov6650), GFP_KERNEL);
+ if (!priv) {
+ dev_err(&client->dev,
+ "Failed to allocate memory for private data!\n");
+ return -ENOMEM;
+ }
+
+ v4l2_i2c_subdev_init(&priv->subdev, client, &ov6650_subdev_ops);
+
+ icd->ops = &ov6650_ops;
+
+ ret = ov6650_video_probe(icd, client);
+
+ if (ret) {
+ icd->ops = NULL;
+ i2c_set_clientdata(client, NULL);
+ kfree(priv);
+ }
+
+ return ret;
+}
+
+static int ov6650_remove(struct i2c_client *client)
+{
+ struct ov6650 *priv = to_ov6650(client);
+
+ i2c_set_clientdata(client, NULL);
+ kfree(priv);
+ return 0;
+}
+
+static const struct i2c_device_id ov6650_id[] = {
+ { "ov6650", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, ov6650_id);
+
+static struct i2c_driver ov6650_i2c_driver = {
+ .driver = {
+ .name = "ov6650",
+ },
+ .probe = ov6650_probe,
+ .remove = ov6650_remove,
+ .id_table = ov6650_id,
+};
+
+static int __init ov6650_module_init(void)
+{
+ return i2c_add_driver(&ov6650_i2c_driver);
+}
+
+static void __exit ov6650_module_exit(void)
+{
+ i2c_del_driver(&ov6650_i2c_driver);
+}
+
+module_init(ov6650_module_init);
+module_exit(ov6650_module_exit);
+
+MODULE_DESCRIPTION("SoC Camera driver for OmniVision OV6650");
+MODULE_AUTHOR("Janusz Krzysztofik <jkrzyszt@xxxxxxxxxxxx>");
+MODULE_LICENSE("GPL v2");
--- linux-2.6.35-rc3.orig/include/media/v4l2-chip-ident.h 2010-06-26 15:56:15.000000000 +0200
+++ linux-2.6.35-rc3/include/media/v4l2-chip-ident.h 2010-06-26 17:28:09.000000000 +0200
@@ -70,6 +70,7 @@ enum {
V4L2_IDENT_OV9655 = 255,
V4L2_IDENT_SOI968 = 256,
V4L2_IDENT_OV9640 = 257,
+ V4L2_IDENT_OV6650 = 258,
/* module saa7146: reserved range 300-309 */
V4L2_IDENT_SAA7146 = 300,
--
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