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Diffstat (limited to 'extras/recipes-kernel/linux/linux-omap-2.6.39/camera/0002-v4l-Add-mt9v032-sensor-driver.patch')
-rw-r--r--extras/recipes-kernel/linux/linux-omap-2.6.39/camera/0002-v4l-Add-mt9v032-sensor-driver.patch853
1 files changed, 853 insertions, 0 deletions
diff --git a/extras/recipes-kernel/linux/linux-omap-2.6.39/camera/0002-v4l-Add-mt9v032-sensor-driver.patch b/extras/recipes-kernel/linux/linux-omap-2.6.39/camera/0002-v4l-Add-mt9v032-sensor-driver.patch
new file mode 100644
index 00000000..fb7cd205
--- /dev/null
+++ b/extras/recipes-kernel/linux/linux-omap-2.6.39/camera/0002-v4l-Add-mt9v032-sensor-driver.patch
@@ -0,0 +1,853 @@
+From ba65e798c98e9c4d331deb2b51337964336d3f78 Mon Sep 17 00:00:00 2001
+From: Detlev Casanova <detlev.casanova@gmail.com>
+Date: Sun, 28 Nov 2010 19:07:20 +0100
+Subject: [PATCH 2/3] v4l: Add mt9v032 sensor driver
+
+The MT9V032 is a parallel wide VGA sensor from Aptina (formerly Micron)
+controlled through I2C.
+
+The driver creates a V4L2 subdevice. It currently supports binning and
+cropping, and the gain, auto gain, exposure, auto exposure and test
+pattern controls.
+
+Signed-off-by: Detlev Casanova <detlev.casanova@gmail.com>
+Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+---
+ drivers/media/video/Kconfig | 7 +
+ drivers/media/video/Makefile | 1 +
+ drivers/media/video/mt9v032.c | 773 +++++++++++++++++++++++++++++++++++++++++
+ include/media/mt9v032.h | 12 +
+ 4 files changed, 793 insertions(+), 0 deletions(-)
+ create mode 100644 drivers/media/video/mt9v032.c
+ create mode 100644 include/media/mt9v032.h
+
+diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
+index cb87e35..3a5bc57 100644
+--- a/drivers/media/video/Kconfig
++++ b/drivers/media/video/Kconfig
+@@ -344,6 +344,13 @@ config VIDEO_MT9V011
+ mt0v011 1.3 Mpixel camera. It currently only works with the
+ em28xx driver.
+
++config VIDEO_MT9V032
++ tristate "Micron MT9V032 sensor support"
++ depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
++ ---help---
++ This is a Video4Linux2 sensor-level driver for the Micron
++ MT9V032 752x480 CMOS sensor.
++
+ config VIDEO_TCM825X
+ tristate "TCM825x camera sensor support"
+ depends on I2C && VIDEO_V4L2
+diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile
+index 912b29b..6679c6a 100644
+--- a/drivers/media/video/Makefile
++++ b/drivers/media/video/Makefile
+@@ -67,6 +67,7 @@ obj-$(CONFIG_VIDEO_TCM825X) += tcm825x.o
+ obj-$(CONFIG_VIDEO_TVEEPROM) += tveeprom.o
+ obj-$(CONFIG_VIDEO_MT9P031) += mt9p031.o
+ obj-$(CONFIG_VIDEO_MT9V011) += mt9v011.o
++obj-$(CONFIG_VIDEO_MT9V032) += mt9v032.o
+ obj-$(CONFIG_VIDEO_SR030PC30) += sr030pc30.o
+ obj-$(CONFIG_VIDEO_NOON010PC30) += noon010pc30.o
+
+diff --git a/drivers/media/video/mt9v032.c b/drivers/media/video/mt9v032.c
+new file mode 100644
+index 0000000..c64e1dc
+--- /dev/null
++++ b/drivers/media/video/mt9v032.c
+@@ -0,0 +1,773 @@
++/*
++ * Driver for MT9V032 CMOS Image Sensor from Micron
++ *
++ * Copyright (C) 2010, Laurent Pinchart <laurent.pinchart@ideasonboard.com>
++ *
++ * Based on the MT9M001 driver,
++ *
++ * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
++ *
++ * 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/delay.h>
++#include <linux/i2c.h>
++#include <linux/log2.h>
++#include <linux/mutex.h>
++#include <linux/slab.h>
++#include <linux/videodev2.h>
++#include <linux/v4l2-mediabus.h>
++
++#include <media/mt9v032.h>
++#include <media/v4l2-ctrls.h>
++#include <media/v4l2-device.h>
++#include <media/v4l2-subdev.h>
++
++#define MT9V032_PIXEL_ARRAY_HEIGHT 492
++#define MT9V032_PIXEL_ARRAY_WIDTH 782
++
++#define MT9V032_CHIP_VERSION 0x00
++#define MT9V032_CHIP_ID_REV1 0x1311
++#define MT9V032_CHIP_ID_REV3 0x1313
++#define MT9V032_COLUMN_START 0x01
++#define MT9V032_COLUMN_START_MIN 1
++#define MT9V032_COLUMN_START_DEF 1
++#define MT9V032_COLUMN_START_MAX 752
++#define MT9V032_ROW_START 0x02
++#define MT9V032_ROW_START_MIN 4
++#define MT9V032_ROW_START_DEF 5
++#define MT9V032_ROW_START_MAX 482
++#define MT9V032_WINDOW_HEIGHT 0x03
++#define MT9V032_WINDOW_HEIGHT_MIN 1
++#define MT9V032_WINDOW_HEIGHT_DEF 480
++#define MT9V032_WINDOW_HEIGHT_MAX 480
++#define MT9V032_WINDOW_WIDTH 0x04
++#define MT9V032_WINDOW_WIDTH_MIN 1
++#define MT9V032_WINDOW_WIDTH_DEF 752
++#define MT9V032_WINDOW_WIDTH_MAX 752
++#define MT9V032_HORIZONTAL_BLANKING 0x05
++#define MT9V032_HORIZONTAL_BLANKING_MIN 43
++#define MT9V032_HORIZONTAL_BLANKING_MAX 1023
++#define MT9V032_VERTICAL_BLANKING 0x06
++#define MT9V032_VERTICAL_BLANKING_MIN 4
++#define MT9V032_VERTICAL_BLANKING_MAX 3000
++#define MT9V032_CHIP_CONTROL 0x07
++#define MT9V032_CHIP_CONTROL_MASTER_MODE (1 << 3)
++#define MT9V032_CHIP_CONTROL_DOUT_ENABLE (1 << 7)
++#define MT9V032_CHIP_CONTROL_SEQUENTIAL (1 << 8)
++#define MT9V032_SHUTTER_WIDTH1 0x08
++#define MT9V032_SHUTTER_WIDTH2 0x09
++#define MT9V032_SHUTTER_WIDTH_CONTROL 0x0a
++#define MT9V032_TOTAL_SHUTTER_WIDTH 0x0b
++#define MT9V032_TOTAL_SHUTTER_WIDTH_MIN 1
++#define MT9V032_TOTAL_SHUTTER_WIDTH_DEF 480
++#define MT9V032_TOTAL_SHUTTER_WIDTH_MAX 32767
++#define MT9V032_RESET 0x0c
++#define MT9V032_READ_MODE 0x0d
++#define MT9V032_READ_MODE_ROW_BIN_MASK (3 << 0)
++#define MT9V032_READ_MODE_ROW_BIN_SHIFT 0
++#define MT9V032_READ_MODE_COLUMN_BIN_MASK (3 << 2)
++#define MT9V032_READ_MODE_COLUMN_BIN_SHIFT 2
++#define MT9V032_READ_MODE_ROW_FLIP (1 << 4)
++#define MT9V032_READ_MODE_COLUMN_FLIP (1 << 5)
++#define MT9V032_READ_MODE_DARK_COLUMNS (1 << 6)
++#define MT9V032_READ_MODE_DARK_ROWS (1 << 7)
++#define MT9V032_PIXEL_OPERATION_MODE 0x0f
++#define MT9V032_PIXEL_OPERATION_MODE_COLOR (1 << 2)
++#define MT9V032_PIXEL_OPERATION_MODE_HDR (1 << 6)
++#define MT9V032_ANALOG_GAIN 0x35
++#define MT9V032_ANALOG_GAIN_MIN 16
++#define MT9V032_ANALOG_GAIN_DEF 16
++#define MT9V032_ANALOG_GAIN_MAX 64
++#define MT9V032_MAX_ANALOG_GAIN 0x36
++#define MT9V032_MAX_ANALOG_GAIN_MAX 127
++#define MT9V032_FRAME_DARK_AVERAGE 0x42
++#define MT9V032_DARK_AVG_THRESH 0x46
++#define MT9V032_DARK_AVG_LOW_THRESH_MASK (255 << 0)
++#define MT9V032_DARK_AVG_LOW_THRESH_SHIFT 0
++#define MT9V032_DARK_AVG_HIGH_THRESH_MASK (255 << 8)
++#define MT9V032_DARK_AVG_HIGH_THRESH_SHIFT 8
++#define MT9V032_ROW_NOISE_CORR_CONTROL 0x70
++#define MT9V032_ROW_NOISE_CORR_ENABLE (1 << 5)
++#define MT9V032_ROW_NOISE_CORR_USE_BLK_AVG (1 << 7)
++#define MT9V032_PIXEL_CLOCK 0x74
++#define MT9V032_PIXEL_CLOCK_INV_LINE (1 << 0)
++#define MT9V032_PIXEL_CLOCK_INV_FRAME (1 << 1)
++#define MT9V032_PIXEL_CLOCK_XOR_LINE (1 << 2)
++#define MT9V032_PIXEL_CLOCK_CONT_LINE (1 << 3)
++#define MT9V032_PIXEL_CLOCK_INV_PXL_CLK (1 << 4)
++#define MT9V032_TEST_PATTERN 0x7f
++#define MT9V032_TEST_PATTERN_DATA_MASK (1023 << 0)
++#define MT9V032_TEST_PATTERN_DATA_SHIFT 0
++#define MT9V032_TEST_PATTERN_USE_DATA (1 << 10)
++#define MT9V032_TEST_PATTERN_GRAY_MASK (3 << 11)
++#define MT9V032_TEST_PATTERN_GRAY_NONE (0 << 11)
++#define MT9V032_TEST_PATTERN_GRAY_VERTICAL (1 << 11)
++#define MT9V032_TEST_PATTERN_GRAY_HORIZONTAL (2 << 11)
++#define MT9V032_TEST_PATTERN_GRAY_DIAGONAL (3 << 11)
++#define MT9V032_TEST_PATTERN_ENABLE (1 << 13)
++#define MT9V032_TEST_PATTERN_FLIP (1 << 14)
++#define MT9V032_AEC_AGC_ENABLE 0xaf
++#define MT9V032_AEC_ENABLE (1 << 0)
++#define MT9V032_AGC_ENABLE (1 << 1)
++#define MT9V032_THERMAL_INFO 0xc1
++
++struct mt9v032 {
++ struct v4l2_subdev subdev;
++ struct media_pad pad;
++
++ struct v4l2_mbus_framefmt format;
++ struct v4l2_rect crop;
++
++ struct v4l2_ctrl_handler ctrls;
++
++ struct mutex power_lock;
++ int power_count;
++
++ struct mt9v032_platform_data *pdata;
++ u16 chip_control;
++ u16 aec_agc;
++};
++
++static struct mt9v032 *to_mt9v032(struct v4l2_subdev *sd)
++{
++ return container_of(sd, struct mt9v032, subdev);
++}
++
++static int mt9v032_read(struct i2c_client *client, const u8 reg)
++{
++ s32 data = i2c_smbus_read_word_data(client, reg);
++ dev_dbg(&client->dev, "%s: read 0x%04x from 0x%02x\n", __func__,
++ swab16(data), reg);
++ return data < 0 ? data : swab16(data);
++}
++
++static int mt9v032_write(struct i2c_client *client, const u8 reg,
++ const u16 data)
++{
++ dev_dbg(&client->dev, "%s: writing 0x%04x to 0x%02x\n", __func__,
++ data, reg);
++ return i2c_smbus_write_word_data(client, reg, swab16(data));
++}
++
++static int mt9v032_set_chip_control(struct mt9v032 *mt9v032, u16 clear, u16 set)
++{
++ struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev);
++ u16 value = (mt9v032->chip_control & ~clear) | set;
++ int ret;
++
++ ret = mt9v032_write(client, MT9V032_CHIP_CONTROL, value);
++ if (ret < 0)
++ return ret;
++
++ mt9v032->chip_control = value;
++ return 0;
++}
++
++static int
++mt9v032_update_aec_agc(struct mt9v032 *mt9v032, u16 which, int enable)
++{
++ struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev);
++ u16 value = mt9v032->aec_agc;
++ int ret;
++
++ if (enable)
++ value |= which;
++ else
++ value &= ~which;
++
++ ret = mt9v032_write(client, MT9V032_AEC_AGC_ENABLE, value);
++ if (ret < 0)
++ return ret;
++
++ mt9v032->aec_agc = value;
++ return 0;
++}
++
++static int mt9v032_power_on(struct mt9v032 *mt9v032)
++{
++ struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev);
++ int ret;
++
++ if (mt9v032->pdata->set_clock) {
++ mt9v032->pdata->set_clock(&mt9v032->subdev, 25000000);
++ udelay(1);
++ }
++
++ /* Reset the chip and stop data read out */
++ ret = mt9v032_write(client, MT9V032_RESET, 1);
++ if (ret < 0)
++ return ret;
++
++ ret = mt9v032_write(client, MT9V032_RESET, 0);
++ if (ret < 0)
++ return ret;
++
++ return mt9v032_write(client, MT9V032_CHIP_CONTROL, 0);
++}
++
++static void mt9v032_power_off(struct mt9v032 *mt9v032)
++{
++ if (mt9v032->pdata->set_clock)
++ mt9v032->pdata->set_clock(&mt9v032->subdev, 0);
++}
++
++static int __mt9v032_set_power(struct mt9v032 *mt9v032, bool on)
++{
++ struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev);
++ int ret;
++
++ if (!on) {
++ mt9v032_power_off(mt9v032);
++ return 0;
++ }
++
++ ret = mt9v032_power_on(mt9v032);
++ if (ret < 0)
++ return ret;
++
++ /* Configure the pixel clock polarity */
++ if (mt9v032->pdata && mt9v032->pdata->clk_pol) {
++ ret = mt9v032_write(client, MT9V032_PIXEL_CLOCK,
++ MT9V032_PIXEL_CLOCK_INV_PXL_CLK);
++ if (ret < 0)
++ return ret;
++ }
++
++ /* Disable the noise correction algorithm and restore the controls. */
++ ret = mt9v032_write(client, MT9V032_ROW_NOISE_CORR_CONTROL, 0);
++ if (ret < 0)
++ return ret;
++
++ return v4l2_ctrl_handler_setup(&mt9v032->ctrls);
++}
++
++/* -----------------------------------------------------------------------------
++ * V4L2 subdev video operations
++ */
++
++static struct v4l2_mbus_framefmt *
++__mt9v032_get_pad_format(struct mt9v032 *mt9v032, struct v4l2_subdev_fh *fh,
++ unsigned int pad, enum v4l2_subdev_format_whence which)
++{
++ switch (which) {
++ case V4L2_SUBDEV_FORMAT_TRY:
++ return v4l2_subdev_get_try_format(fh, pad);
++ case V4L2_SUBDEV_FORMAT_ACTIVE:
++ return &mt9v032->format;
++ default:
++ return NULL;
++ }
++}
++
++static struct v4l2_rect *
++__mt9v032_get_pad_crop(struct mt9v032 *mt9v032, struct v4l2_subdev_fh *fh,
++ unsigned int pad, enum v4l2_subdev_format_whence which)
++{
++ switch (which) {
++ case V4L2_SUBDEV_FORMAT_TRY:
++ return v4l2_subdev_get_try_crop(fh, pad);
++ case V4L2_SUBDEV_FORMAT_ACTIVE:
++ return &mt9v032->crop;
++ default:
++ return NULL;
++ }
++}
++
++static int mt9v032_s_stream(struct v4l2_subdev *subdev, int enable)
++{
++ const u16 mode = MT9V032_CHIP_CONTROL_MASTER_MODE
++ | MT9V032_CHIP_CONTROL_DOUT_ENABLE
++ | MT9V032_CHIP_CONTROL_SEQUENTIAL;
++ struct i2c_client *client = v4l2_get_subdevdata(subdev);
++ struct mt9v032 *mt9v032 = to_mt9v032(subdev);
++ struct v4l2_mbus_framefmt *format = &mt9v032->format;
++ struct v4l2_rect *crop = &mt9v032->crop;
++ unsigned int hratio;
++ unsigned int vratio;
++ int ret;
++
++ if (!enable)
++ return mt9v032_set_chip_control(mt9v032, mode, 0);
++
++ /* Configure the window size and row/column bin */
++ hratio = DIV_ROUND_CLOSEST(crop->width, format->width);
++ vratio = DIV_ROUND_CLOSEST(crop->height, format->height);
++
++ ret = mt9v032_write(client, MT9V032_READ_MODE,
++ (hratio - 1) << MT9V032_READ_MODE_ROW_BIN_SHIFT |
++ (vratio - 1) << MT9V032_READ_MODE_COLUMN_BIN_SHIFT);
++ if (ret < 0)
++ return ret;
++
++ ret = mt9v032_write(client, MT9V032_COLUMN_START, crop->left);
++ if (ret < 0)
++ return ret;
++
++ ret = mt9v032_write(client, MT9V032_ROW_START, crop->top);
++ if (ret < 0)
++ return ret;
++
++ ret = mt9v032_write(client, MT9V032_WINDOW_WIDTH, crop->width);
++ if (ret < 0)
++ return ret;
++
++ ret = mt9v032_write(client, MT9V032_WINDOW_HEIGHT, crop->height);
++ if (ret < 0)
++ return ret;
++
++ ret = mt9v032_write(client, MT9V032_HORIZONTAL_BLANKING,
++ max(43, 660 - crop->width));
++ if (ret < 0)
++ return ret;
++
++ /* Switch to master "normal" mode */
++ return mt9v032_set_chip_control(mt9v032, 0, mode);
++}
++
++static int mt9v032_enum_mbus_code(struct v4l2_subdev *subdev,
++ struct v4l2_subdev_fh *fh,
++ struct v4l2_subdev_mbus_code_enum *code)
++{
++ if (code->index > 0)
++ return -EINVAL;
++
++ code->code = V4L2_MBUS_FMT_SGRBG10_1X10;
++ return 0;
++}
++
++static int mt9v032_enum_frame_size(struct v4l2_subdev *subdev,
++ struct v4l2_subdev_fh *fh,
++ struct v4l2_subdev_frame_size_enum *fse)
++{
++ if (fse->index >= 8 || fse->code != V4L2_MBUS_FMT_SGRBG10_1X10)
++ return -EINVAL;
++
++ fse->min_width = MT9V032_WINDOW_WIDTH_DEF / fse->index;
++ fse->max_width = fse->min_width;
++ fse->min_height = MT9V032_WINDOW_HEIGHT_DEF / fse->index;
++ fse->max_height = fse->min_height;
++
++ return 0;
++}
++
++static int mt9v032_get_format(struct v4l2_subdev *subdev,
++ struct v4l2_subdev_fh *fh,
++ struct v4l2_subdev_format *format)
++{
++ struct mt9v032 *mt9v032 = to_mt9v032(subdev);
++
++ format->format = *__mt9v032_get_pad_format(mt9v032, fh, format->pad,
++ format->which);
++ return 0;
++}
++
++static int mt9v032_set_format(struct v4l2_subdev *subdev,
++ struct v4l2_subdev_fh *fh,
++ struct v4l2_subdev_format *format)
++{
++ struct mt9v032 *mt9v032 = to_mt9v032(subdev);
++ struct v4l2_mbus_framefmt *__format;
++ struct v4l2_rect *__crop;
++ unsigned int width;
++ unsigned int height;
++ unsigned int hratio;
++ unsigned int vratio;
++
++ __crop = __mt9v032_get_pad_crop(mt9v032, fh, format->pad,
++ format->which);
++
++ /* Clamp the width and height to avoid dividing by zero. */
++ width = clamp_t(unsigned int, ALIGN(format->format.width, 2),
++ max(__crop->width / 8, MT9V032_WINDOW_WIDTH_MIN),
++ __crop->width);
++ height = clamp_t(unsigned int, ALIGN(format->format.height, 2),
++ max(__crop->height / 8, MT9V032_WINDOW_HEIGHT_MIN),
++ __crop->height);
++
++ hratio = DIV_ROUND_CLOSEST(__crop->width, width);
++ vratio = DIV_ROUND_CLOSEST(__crop->height, height);
++
++ __format = __mt9v032_get_pad_format(mt9v032, fh, format->pad,
++ format->which);
++ __format->width = __crop->width / hratio;
++ __format->height = __crop->height / vratio;
++
++ format->format = *__format;
++
++ return 0;
++}
++
++static int mt9v032_get_crop(struct v4l2_subdev *subdev,
++ struct v4l2_subdev_fh *fh,
++ struct v4l2_subdev_crop *crop)
++{
++ struct mt9v032 *mt9v032 = to_mt9v032(subdev);
++
++ crop->rect = *__mt9v032_get_pad_crop(mt9v032, fh, crop->pad,
++ crop->which);
++ return 0;
++}
++
++static int mt9v032_set_crop(struct v4l2_subdev *subdev,
++ struct v4l2_subdev_fh *fh,
++ struct v4l2_subdev_crop *crop)
++{
++ struct mt9v032 *mt9v032 = to_mt9v032(subdev);
++ struct v4l2_mbus_framefmt *__format;
++ struct v4l2_rect *__crop;
++ struct v4l2_rect rect;
++
++ /* Clamp the crop rectangle boundaries and align them to a non multiple
++ * of 2 pixels to ensure a GRBG Bayer pattern.
++ */
++ rect.left = clamp(ALIGN(crop->rect.left + 1, 2) - 1,
++ MT9V032_COLUMN_START_MIN,
++ MT9V032_COLUMN_START_MAX);
++ rect.top = clamp(ALIGN(crop->rect.top + 1, 2) - 1,
++ MT9V032_ROW_START_MIN,
++ MT9V032_ROW_START_MAX);
++ rect.width = clamp(ALIGN(crop->rect.width, 2),
++ MT9V032_WINDOW_WIDTH_MIN,
++ MT9V032_WINDOW_WIDTH_MAX);
++ rect.height = clamp(ALIGN(crop->rect.height, 2),
++ MT9V032_WINDOW_HEIGHT_MIN,
++ MT9V032_WINDOW_HEIGHT_MAX);
++
++ rect.width = min(rect.width, MT9V032_PIXEL_ARRAY_WIDTH - rect.left);
++ rect.height = min(rect.height, MT9V032_PIXEL_ARRAY_HEIGHT - rect.top);
++
++ __crop = __mt9v032_get_pad_crop(mt9v032, fh, crop->pad, crop->which);
++
++ if (rect.width != __crop->width || rect.height != __crop->height) {
++ /* Reset the output image size if the crop rectangle size has
++ * been modified.
++ */
++ __format = __mt9v032_get_pad_format(mt9v032, fh, crop->pad,
++ crop->which);
++ __format->width = rect.width;
++ __format->height = rect.height;
++ }
++
++ *__crop = rect;
++ crop->rect = rect;
++
++ return 0;
++}
++
++/* -----------------------------------------------------------------------------
++ * V4L2 subdev control operations
++ */
++
++#define V4L2_CID_TEST_PATTERN (V4L2_CID_USER_BASE | 0x1001)
++
++static int mt9v032_s_ctrl(struct v4l2_ctrl *ctrl)
++{
++ struct mt9v032 *mt9v032 =
++ container_of(ctrl->handler, struct mt9v032, ctrls);
++ struct i2c_client *client = v4l2_get_subdevdata(&mt9v032->subdev);
++ u16 data;
++
++ switch (ctrl->id) {
++ case V4L2_CID_AUTOGAIN:
++ return mt9v032_update_aec_agc(mt9v032, MT9V032_AGC_ENABLE,
++ ctrl->val);
++
++ case V4L2_CID_GAIN:
++ return mt9v032_write(client, MT9V032_ANALOG_GAIN, ctrl->val);
++
++ case V4L2_CID_EXPOSURE_AUTO:
++ return mt9v032_update_aec_agc(mt9v032, MT9V032_AEC_ENABLE,
++ ctrl->val);
++
++ case V4L2_CID_EXPOSURE:
++ return mt9v032_write(client, MT9V032_TOTAL_SHUTTER_WIDTH,
++ ctrl->val);
++
++ case V4L2_CID_TEST_PATTERN:
++ switch (ctrl->val) {
++ case 0:
++ data = 0;
++ break;
++ case 1:
++ data = MT9V032_TEST_PATTERN_GRAY_VERTICAL
++ | MT9V032_TEST_PATTERN_ENABLE;
++ break;
++ case 2:
++ data = MT9V032_TEST_PATTERN_GRAY_HORIZONTAL
++ | MT9V032_TEST_PATTERN_ENABLE;
++ break;
++ case 3:
++ data = MT9V032_TEST_PATTERN_GRAY_DIAGONAL
++ | MT9V032_TEST_PATTERN_ENABLE;
++ break;
++ default:
++ data = (ctrl->val << MT9V032_TEST_PATTERN_DATA_SHIFT)
++ | MT9V032_TEST_PATTERN_USE_DATA
++ | MT9V032_TEST_PATTERN_ENABLE
++ | MT9V032_TEST_PATTERN_FLIP;
++ break;
++ }
++
++ return mt9v032_write(client, MT9V032_TEST_PATTERN, data);
++ }
++
++ return 0;
++}
++
++static struct v4l2_ctrl_ops mt9v032_ctrl_ops = {
++ .s_ctrl = mt9v032_s_ctrl,
++};
++
++static const struct v4l2_ctrl_config mt9v032_ctrls[] = {
++ {
++ .ops = &mt9v032_ctrl_ops,
++ .id = V4L2_CID_TEST_PATTERN,
++ .type = V4L2_CTRL_TYPE_INTEGER,
++ .name = "Test pattern",
++ .min = 0,
++ .max = 1023,
++ .step = 1,
++ .def = 0,
++ .flags = 0,
++ }
++};
++
++/* -----------------------------------------------------------------------------
++ * V4L2 subdev core operations
++ */
++
++static int mt9v032_set_power(struct v4l2_subdev *subdev, int on)
++{
++ struct mt9v032 *mt9v032 = to_mt9v032(subdev);
++ int ret = 0;
++
++ mutex_lock(&mt9v032->power_lock);
++
++ /* If the power count is modified from 0 to != 0 or from != 0 to 0,
++ * update the power state.
++ */
++ if (mt9v032->power_count == !on) {
++ ret = __mt9v032_set_power(mt9v032, !!on);
++ if (ret < 0)
++ goto done;
++ }
++
++ /* Update the power count. */
++ mt9v032->power_count += on ? 1 : -1;
++ WARN_ON(mt9v032->power_count < 0);
++
++done:
++ mutex_unlock(&mt9v032->power_lock);
++ return ret;
++}
++
++/* -----------------------------------------------------------------------------
++ * V4L2 subdev internal operations
++ */
++
++static int mt9v032_registered(struct v4l2_subdev *subdev)
++{
++ struct i2c_client *client = v4l2_get_subdevdata(subdev);
++ struct mt9v032 *mt9v032 = to_mt9v032(subdev);
++ s32 data;
++ int ret;
++
++ dev_info(&client->dev, "Probing MT9V032 at address 0x%02x\n",
++ client->addr);
++
++ ret = mt9v032_power_on(mt9v032);
++ if (ret < 0) {
++ dev_err(&client->dev, "MT9V032 power up failed\n");
++ return ret;
++ }
++
++ /* Read and check the sensor version */
++ data = mt9v032_read(client, MT9V032_CHIP_VERSION);
++ if (data != MT9V032_CHIP_ID_REV1 && data != MT9V032_CHIP_ID_REV3) {
++ dev_err(&client->dev, "MT9V032 not detected, wrong version "
++ "0x%04x\n", data);
++ return -ENODEV;
++ }
++
++ mt9v032_power_off(mt9v032);
++
++ dev_info(&client->dev, "MT9V032 detected at address 0x%02x\n",
++ client->addr);
++
++ return ret;
++}
++
++static int mt9v032_open(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh)
++{
++ struct v4l2_mbus_framefmt *format;
++ struct v4l2_rect *crop;
++
++ crop = v4l2_subdev_get_try_crop(fh, 0);
++ crop->left = MT9V032_COLUMN_START_DEF;
++ crop->top = MT9V032_ROW_START_DEF;
++ crop->width = MT9V032_WINDOW_WIDTH_DEF;
++ crop->height = MT9V032_WINDOW_HEIGHT_DEF;
++
++ format = v4l2_subdev_get_try_format(fh, 0);
++ format->code = V4L2_MBUS_FMT_SGRBG10_1X10;
++ format->width = MT9V032_WINDOW_WIDTH_DEF;
++ format->height = MT9V032_WINDOW_HEIGHT_DEF;
++ format->field = V4L2_FIELD_NONE;
++ format->colorspace = V4L2_COLORSPACE_SRGB;
++
++ return mt9v032_set_power(subdev, 1);
++}
++
++static int mt9v032_close(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh)
++{
++ return mt9v032_set_power(subdev, 0);
++}
++
++static struct v4l2_subdev_core_ops mt9v032_subdev_core_ops = {
++ .s_power = mt9v032_set_power,
++};
++
++static struct v4l2_subdev_video_ops mt9v032_subdev_video_ops = {
++ .s_stream = mt9v032_s_stream,
++};
++
++static struct v4l2_subdev_pad_ops mt9v032_subdev_pad_ops = {
++ .enum_mbus_code = mt9v032_enum_mbus_code,
++ .enum_frame_size = mt9v032_enum_frame_size,
++ .get_fmt = mt9v032_get_format,
++ .set_fmt = mt9v032_set_format,
++ .get_crop = mt9v032_get_crop,
++ .set_crop = mt9v032_set_crop,
++};
++
++static struct v4l2_subdev_ops mt9v032_subdev_ops = {
++ .core = &mt9v032_subdev_core_ops,
++ .video = &mt9v032_subdev_video_ops,
++ .pad = &mt9v032_subdev_pad_ops,
++};
++
++static const struct v4l2_subdev_internal_ops mt9v032_subdev_internal_ops = {
++ .registered = mt9v032_registered,
++ .open = mt9v032_open,
++ .close = mt9v032_close,
++};
++
++/* -----------------------------------------------------------------------------
++ * Driver initialization and probing
++ */
++
++static int mt9v032_probe(struct i2c_client *client,
++ const struct i2c_device_id *did)
++{
++ struct mt9v032 *mt9v032;
++ unsigned int i;
++ int ret;
++
++ if (!i2c_check_functionality(client->adapter,
++ I2C_FUNC_SMBUS_WORD_DATA)) {
++ dev_warn(&client->adapter->dev,
++ "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
++ return -EIO;
++ }
++
++ mt9v032 = kzalloc(sizeof(*mt9v032), GFP_KERNEL);
++ if (!mt9v032)
++ return -ENOMEM;
++
++ mutex_init(&mt9v032->power_lock);
++ mt9v032->pdata = client->dev.platform_data;
++
++ v4l2_ctrl_handler_init(&mt9v032->ctrls, ARRAY_SIZE(mt9v032_ctrls) + 4);
++
++ v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops,
++ V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
++ v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops,
++ V4L2_CID_GAIN, MT9V032_ANALOG_GAIN_MIN,
++ MT9V032_ANALOG_GAIN_MAX, 1, MT9V032_ANALOG_GAIN_DEF);
++ v4l2_ctrl_new_std_menu(&mt9v032->ctrls, &mt9v032_ctrl_ops,
++ V4L2_CID_EXPOSURE_AUTO, V4L2_EXPOSURE_MANUAL, 0,
++ V4L2_EXPOSURE_AUTO);
++ v4l2_ctrl_new_std(&mt9v032->ctrls, &mt9v032_ctrl_ops,
++ V4L2_CID_EXPOSURE, MT9V032_TOTAL_SHUTTER_WIDTH_MIN,
++ MT9V032_TOTAL_SHUTTER_WIDTH_MAX, 1,
++ MT9V032_TOTAL_SHUTTER_WIDTH_DEF);
++
++ for (i = 0; i < ARRAY_SIZE(mt9v032_ctrls); ++i)
++ v4l2_ctrl_new_custom(&mt9v032->ctrls, &mt9v032_ctrls[i], NULL);
++
++ mt9v032->subdev.ctrl_handler = &mt9v032->ctrls;
++
++ if (mt9v032->ctrls.error)
++ printk(KERN_INFO "%s: control initialization error %d\n",
++ __func__, mt9v032->ctrls.error);
++
++ mt9v032->crop.left = MT9V032_COLUMN_START_DEF;
++ mt9v032->crop.top = MT9V032_ROW_START_DEF;
++ mt9v032->crop.width = MT9V032_WINDOW_WIDTH_DEF;
++ mt9v032->crop.height = MT9V032_WINDOW_HEIGHT_DEF;
++
++ mt9v032->format.code = V4L2_MBUS_FMT_SGRBG10_1X10;
++ mt9v032->format.width = MT9V032_WINDOW_WIDTH_DEF;
++ mt9v032->format.height = MT9V032_WINDOW_HEIGHT_DEF;
++ mt9v032->format.field = V4L2_FIELD_NONE;
++ mt9v032->format.colorspace = V4L2_COLORSPACE_SRGB;
++
++ mt9v032->aec_agc = MT9V032_AEC_ENABLE | MT9V032_AGC_ENABLE;
++
++ v4l2_i2c_subdev_init(&mt9v032->subdev, client, &mt9v032_subdev_ops);
++ mt9v032->subdev.internal_ops = &mt9v032_subdev_internal_ops;
++ mt9v032->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
++
++ mt9v032->pad.flags = MEDIA_PAD_FL_SOURCE;
++ ret = media_entity_init(&mt9v032->subdev.entity, 1, &mt9v032->pad, 0);
++ if (ret < 0)
++ kfree(mt9v032);
++
++ return ret;
++}
++
++static int mt9v032_remove(struct i2c_client *client)
++{
++ struct v4l2_subdev *subdev = i2c_get_clientdata(client);
++ struct mt9v032 *mt9v032 = to_mt9v032(subdev);
++
++ v4l2_device_unregister_subdev(subdev);
++ media_entity_cleanup(&subdev->entity);
++ kfree(mt9v032);
++ return 0;
++}
++
++static const struct i2c_device_id mt9v032_id[] = {
++ { "mt9v032", 0 },
++ { }
++};
++MODULE_DEVICE_TABLE(i2c, mt9v032_id);
++
++static struct i2c_driver mt9v032_driver = {
++ .driver = {
++ .name = "mt9v032",
++ },
++ .probe = mt9v032_probe,
++ .remove = mt9v032_remove,
++ .id_table = mt9v032_id,
++};
++
++static int __init mt9v032_init(void)
++{
++ return i2c_add_driver(&mt9v032_driver);
++}
++
++static void __exit mt9v032_exit(void)
++{
++ i2c_del_driver(&mt9v032_driver);
++}
++
++module_init(mt9v032_init);
++module_exit(mt9v032_exit);
++
++MODULE_DESCRIPTION("Aptina MT9V032 Camera driver");
++MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
++MODULE_LICENSE("GPL");
+diff --git a/include/media/mt9v032.h b/include/media/mt9v032.h
+new file mode 100644
+index 0000000..5e27f9b
+--- /dev/null
++++ b/include/media/mt9v032.h
+@@ -0,0 +1,12 @@
++#ifndef _MEDIA_MT9V032_H
++#define _MEDIA_MT9V032_H
++
++struct v4l2_subdev;
++
++struct mt9v032_platform_data {
++ unsigned int clk_pol:1;
++
++ void (*set_clock)(struct v4l2_subdev *subdev, unsigned int rate);
++};
++
++#endif
+--
+1.6.6.1
+
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-24 23:36:59 +0000