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Diffstat (limited to 'drivers/media/video/mt9v022.c')
-rw-r--r--drivers/media/video/mt9v022.c879
1 files changed, 0 insertions, 879 deletions
diff --git a/drivers/media/video/mt9v022.c b/drivers/media/video/mt9v022.c
deleted file mode 100644
index 7247924..0000000
--- a/drivers/media/video/mt9v022.c
+++ /dev/null
@@ -1,879 +0,0 @@
-/*
- * Driver for MT9V022 CMOS Image Sensor from Micron
- *
- * 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/videodev2.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/delay.h>
-#include <linux/log2.h>
-#include <linux/module.h>
-
-#include <media/soc_camera.h>
-#include <media/soc_mediabus.h>
-#include <media/v4l2-subdev.h>
-#include <media/v4l2-chip-ident.h>
-#include <media/v4l2-ctrls.h>
-
-/*
- * mt9v022 i2c address 0x48, 0x4c, 0x58, 0x5c
- * The platform has to define struct i2c_board_info objects and link to them
- * from struct soc_camera_link
- */
-
-static char *sensor_type;
-module_param(sensor_type, charp, S_IRUGO);
-MODULE_PARM_DESC(sensor_type, "Sensor type: \"colour\" or \"monochrome\"");
-
-/* mt9v022 selected register addresses */
-#define MT9V022_CHIP_VERSION 0x00
-#define MT9V022_COLUMN_START 0x01
-#define MT9V022_ROW_START 0x02
-#define MT9V022_WINDOW_HEIGHT 0x03
-#define MT9V022_WINDOW_WIDTH 0x04
-#define MT9V022_HORIZONTAL_BLANKING 0x05
-#define MT9V022_VERTICAL_BLANKING 0x06
-#define MT9V022_CHIP_CONTROL 0x07
-#define MT9V022_SHUTTER_WIDTH1 0x08
-#define MT9V022_SHUTTER_WIDTH2 0x09
-#define MT9V022_SHUTTER_WIDTH_CTRL 0x0a
-#define MT9V022_TOTAL_SHUTTER_WIDTH 0x0b
-#define MT9V022_RESET 0x0c
-#define MT9V022_READ_MODE 0x0d
-#define MT9V022_MONITOR_MODE 0x0e
-#define MT9V022_PIXEL_OPERATION_MODE 0x0f
-#define MT9V022_LED_OUT_CONTROL 0x1b
-#define MT9V022_ADC_MODE_CONTROL 0x1c
-#define MT9V022_ANALOG_GAIN 0x35
-#define MT9V022_BLACK_LEVEL_CALIB_CTRL 0x47
-#define MT9V022_PIXCLK_FV_LV 0x74
-#define MT9V022_DIGITAL_TEST_PATTERN 0x7f
-#define MT9V022_AEC_AGC_ENABLE 0xAF
-#define MT9V022_MAX_TOTAL_SHUTTER_WIDTH 0xBD
-
-/* Progressive scan, master, defaults */
-#define MT9V022_CHIP_CONTROL_DEFAULT 0x188
-
-#define MT9V022_MAX_WIDTH 752
-#define MT9V022_MAX_HEIGHT 480
-#define MT9V022_MIN_WIDTH 48
-#define MT9V022_MIN_HEIGHT 32
-#define MT9V022_COLUMN_SKIP 1
-#define MT9V022_ROW_SKIP 4
-
-/* MT9V022 has only one fixed colorspace per pixelcode */
-struct mt9v022_datafmt {
- enum v4l2_mbus_pixelcode code;
- enum v4l2_colorspace colorspace;
-};
-
-/* Find a data format by a pixel code in an array */
-static const struct mt9v022_datafmt *mt9v022_find_datafmt(
- enum v4l2_mbus_pixelcode code, const struct mt9v022_datafmt *fmt,
- int n)
-{
- int i;
- for (i = 0; i < n; i++)
- if (fmt[i].code == code)
- return fmt + i;
-
- return NULL;
-}
-
-static const struct mt9v022_datafmt mt9v022_colour_fmts[] = {
- /*
- * Order important: first natively supported,
- * second supported with a GPIO extender
- */
- {V4L2_MBUS_FMT_SBGGR10_1X10, V4L2_COLORSPACE_SRGB},
- {V4L2_MBUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB},
-};
-
-static const struct mt9v022_datafmt mt9v022_monochrome_fmts[] = {
- /* Order important - see above */
- {V4L2_MBUS_FMT_Y10_1X10, V4L2_COLORSPACE_JPEG},
- {V4L2_MBUS_FMT_Y8_1X8, V4L2_COLORSPACE_JPEG},
-};
-
-struct mt9v022 {
- struct v4l2_subdev subdev;
- struct v4l2_ctrl_handler hdl;
- struct {
- /* exposure/auto-exposure cluster */
- struct v4l2_ctrl *autoexposure;
- struct v4l2_ctrl *exposure;
- };
- struct {
- /* gain/auto-gain cluster */
- struct v4l2_ctrl *autogain;
- struct v4l2_ctrl *gain;
- };
- struct v4l2_rect rect; /* Sensor window */
- const struct mt9v022_datafmt *fmt;
- const struct mt9v022_datafmt *fmts;
- int num_fmts;
- int model; /* V4L2_IDENT_MT9V022* codes from v4l2-chip-ident.h */
- u16 chip_control;
- unsigned short y_skip_top; /* Lines to skip at the top */
-};
-
-static struct mt9v022 *to_mt9v022(const struct i2c_client *client)
-{
- return container_of(i2c_get_clientdata(client), struct mt9v022, subdev);
-}
-
-static int reg_read(struct i2c_client *client, const u8 reg)
-{
- return i2c_smbus_read_word_swapped(client, reg);
-}
-
-static int reg_write(struct i2c_client *client, const u8 reg,
- const u16 data)
-{
- return i2c_smbus_write_word_swapped(client, reg, data);
-}
-
-static int reg_set(struct i2c_client *client, const u8 reg,
- const u16 data)
-{
- int ret;
-
- ret = reg_read(client, reg);
- if (ret < 0)
- return ret;
- return reg_write(client, reg, ret | data);
-}
-
-static int reg_clear(struct i2c_client *client, const u8 reg,
- const u16 data)
-{
- int ret;
-
- ret = reg_read(client, reg);
- if (ret < 0)
- return ret;
- return reg_write(client, reg, ret & ~data);
-}
-
-static int mt9v022_init(struct i2c_client *client)
-{
- struct mt9v022 *mt9v022 = to_mt9v022(client);
- int ret;
-
- /*
- * Almost the default mode: master, parallel, simultaneous, and an
- * undocumented bit 0x200, which is present in table 7, but not in 8,
- * plus snapshot mode to disable scan for now
- */
- mt9v022->chip_control |= 0x10;
- ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control);
- if (!ret)
- ret = reg_write(client, MT9V022_READ_MODE, 0x300);
-
- /* All defaults */
- if (!ret)
- /* AEC, AGC on */
- ret = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x3);
- if (!ret)
- ret = reg_write(client, MT9V022_ANALOG_GAIN, 16);
- if (!ret)
- ret = reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH, 480);
- if (!ret)
- ret = reg_write(client, MT9V022_MAX_TOTAL_SHUTTER_WIDTH, 480);
- if (!ret)
- /* default - auto */
- ret = reg_clear(client, MT9V022_BLACK_LEVEL_CALIB_CTRL, 1);
- if (!ret)
- ret = reg_write(client, MT9V022_DIGITAL_TEST_PATTERN, 0);
- if (!ret)
- return v4l2_ctrl_handler_setup(&mt9v022->hdl);
-
- return ret;
-}
-
-static int mt9v022_s_stream(struct v4l2_subdev *sd, int enable)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9v022 *mt9v022 = to_mt9v022(client);
-
- if (enable)
- /* Switch to master "normal" mode */
- mt9v022->chip_control &= ~0x10;
- else
- /* Switch to snapshot mode */
- mt9v022->chip_control |= 0x10;
-
- if (reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control) < 0)
- return -EIO;
- return 0;
-}
-
-static int mt9v022_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9v022 *mt9v022 = to_mt9v022(client);
- struct v4l2_rect rect = a->c;
- int ret;
-
- /* Bayer format - even size lengths */
- if (mt9v022->fmts == mt9v022_colour_fmts) {
- rect.width = ALIGN(rect.width, 2);
- rect.height = ALIGN(rect.height, 2);
- /* Let the user play with the starting pixel */
- }
-
- soc_camera_limit_side(&rect.left, &rect.width,
- MT9V022_COLUMN_SKIP, MT9V022_MIN_WIDTH, MT9V022_MAX_WIDTH);
-
- soc_camera_limit_side(&rect.top, &rect.height,
- MT9V022_ROW_SKIP, MT9V022_MIN_HEIGHT, MT9V022_MAX_HEIGHT);
-
- /* Like in example app. Contradicts the datasheet though */
- ret = reg_read(client, MT9V022_AEC_AGC_ENABLE);
- if (ret >= 0) {
- if (ret & 1) /* Autoexposure */
- ret = reg_write(client, MT9V022_MAX_TOTAL_SHUTTER_WIDTH,
- rect.height + mt9v022->y_skip_top + 43);
- else
- ret = reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH,
- rect.height + mt9v022->y_skip_top + 43);
- }
- /* Setup frame format: defaults apart from width and height */
- if (!ret)
- ret = reg_write(client, MT9V022_COLUMN_START, rect.left);
- if (!ret)
- ret = reg_write(client, MT9V022_ROW_START, rect.top);
- if (!ret)
- /*
- * Default 94, Phytec driver says:
- * "width + horizontal blank >= 660"
- */
- ret = reg_write(client, MT9V022_HORIZONTAL_BLANKING,
- rect.width > 660 - 43 ? 43 :
- 660 - rect.width);
- if (!ret)
- ret = reg_write(client, MT9V022_VERTICAL_BLANKING, 45);
- if (!ret)
- ret = reg_write(client, MT9V022_WINDOW_WIDTH, rect.width);
- if (!ret)
- ret = reg_write(client, MT9V022_WINDOW_HEIGHT,
- rect.height + mt9v022->y_skip_top);
-
- if (ret < 0)
- return ret;
-
- dev_dbg(&client->dev, "Frame %dx%d pixel\n", rect.width, rect.height);
-
- mt9v022->rect = rect;
-
- return 0;
-}
-
-static int mt9v022_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9v022 *mt9v022 = to_mt9v022(client);
-
- a->c = mt9v022->rect;
- a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-
- return 0;
-}
-
-static int mt9v022_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
-{
- a->bounds.left = MT9V022_COLUMN_SKIP;
- a->bounds.top = MT9V022_ROW_SKIP;
- a->bounds.width = MT9V022_MAX_WIDTH;
- a->bounds.height = MT9V022_MAX_HEIGHT;
- a->defrect = a->bounds;
- a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- a->pixelaspect.numerator = 1;
- a->pixelaspect.denominator = 1;
-
- return 0;
-}
-
-static int mt9v022_g_fmt(struct v4l2_subdev *sd,
- struct v4l2_mbus_framefmt *mf)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9v022 *mt9v022 = to_mt9v022(client);
-
- mf->width = mt9v022->rect.width;
- mf->height = mt9v022->rect.height;
- mf->code = mt9v022->fmt->code;
- mf->colorspace = mt9v022->fmt->colorspace;
- mf->field = V4L2_FIELD_NONE;
-
- return 0;
-}
-
-static int mt9v022_s_fmt(struct v4l2_subdev *sd,
- struct v4l2_mbus_framefmt *mf)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9v022 *mt9v022 = to_mt9v022(client);
- struct v4l2_crop a = {
- .c = {
- .left = mt9v022->rect.left,
- .top = mt9v022->rect.top,
- .width = mf->width,
- .height = mf->height,
- },
- };
- int ret;
-
- /*
- * The caller provides a supported format, as verified per call to
- * .try_mbus_fmt(), datawidth is from our supported format list
- */
- switch (mf->code) {
- case V4L2_MBUS_FMT_Y8_1X8:
- case V4L2_MBUS_FMT_Y10_1X10:
- if (mt9v022->model != V4L2_IDENT_MT9V022IX7ATM)
- return -EINVAL;
- break;
- case V4L2_MBUS_FMT_SBGGR8_1X8:
- case V4L2_MBUS_FMT_SBGGR10_1X10:
- if (mt9v022->model != V4L2_IDENT_MT9V022IX7ATC)
- return -EINVAL;
- break;
- default:
- return -EINVAL;
- }
-
- /* No support for scaling on this camera, just crop. */
- ret = mt9v022_s_crop(sd, &a);
- if (!ret) {
- mf->width = mt9v022->rect.width;
- mf->height = mt9v022->rect.height;
- mt9v022->fmt = mt9v022_find_datafmt(mf->code,
- mt9v022->fmts, mt9v022->num_fmts);
- mf->colorspace = mt9v022->fmt->colorspace;
- }
-
- return ret;
-}
-
-static int mt9v022_try_fmt(struct v4l2_subdev *sd,
- struct v4l2_mbus_framefmt *mf)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9v022 *mt9v022 = to_mt9v022(client);
- const struct mt9v022_datafmt *fmt;
- int align = mf->code == V4L2_MBUS_FMT_SBGGR8_1X8 ||
- mf->code == V4L2_MBUS_FMT_SBGGR10_1X10;
-
- v4l_bound_align_image(&mf->width, MT9V022_MIN_WIDTH,
- MT9V022_MAX_WIDTH, align,
- &mf->height, MT9V022_MIN_HEIGHT + mt9v022->y_skip_top,
- MT9V022_MAX_HEIGHT + mt9v022->y_skip_top, align, 0);
-
- fmt = mt9v022_find_datafmt(mf->code, mt9v022->fmts,
- mt9v022->num_fmts);
- if (!fmt) {
- fmt = mt9v022->fmt;
- mf->code = fmt->code;
- }
-
- mf->colorspace = fmt->colorspace;
-
- return 0;
-}
-
-static int mt9v022_g_chip_ident(struct v4l2_subdev *sd,
- struct v4l2_dbg_chip_ident *id)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9v022 *mt9v022 = to_mt9v022(client);
-
- if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR)
- return -EINVAL;
-
- if (id->match.addr != client->addr)
- return -ENODEV;
-
- id->ident = mt9v022->model;
- id->revision = 0;
-
- return 0;
-}
-
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-static int mt9v022_g_register(struct v4l2_subdev *sd,
- struct v4l2_dbg_register *reg)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
-
- if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff)
- return -EINVAL;
-
- if (reg->match.addr != client->addr)
- return -ENODEV;
-
- reg->size = 2;
- reg->val = reg_read(client, reg->reg);
-
- if (reg->val > 0xffff)
- return -EIO;
-
- return 0;
-}
-
-static int mt9v022_s_register(struct v4l2_subdev *sd,
- struct v4l2_dbg_register *reg)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
-
- if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff)
- return -EINVAL;
-
- if (reg->match.addr != client->addr)
- return -ENODEV;
-
- if (reg_write(client, reg->reg, reg->val) < 0)
- return -EIO;
-
- return 0;
-}
-#endif
-
-static int mt9v022_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
-{
- struct mt9v022 *mt9v022 = container_of(ctrl->handler,
- struct mt9v022, hdl);
- struct v4l2_subdev *sd = &mt9v022->subdev;
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct v4l2_ctrl *gain = mt9v022->gain;
- struct v4l2_ctrl *exp = mt9v022->exposure;
- unsigned long range;
- int data;
-
- switch (ctrl->id) {
- case V4L2_CID_AUTOGAIN:
- data = reg_read(client, MT9V022_ANALOG_GAIN);
- if (data < 0)
- return -EIO;
-
- range = gain->maximum - gain->minimum;
- gain->val = ((data - 16) * range + 24) / 48 + gain->minimum;
- return 0;
- case V4L2_CID_EXPOSURE_AUTO:
- data = reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH);
- if (data < 0)
- return -EIO;
-
- range = exp->maximum - exp->minimum;
- exp->val = ((data - 1) * range + 239) / 479 + exp->minimum;
- return 0;
- }
- return -EINVAL;
-}
-
-static int mt9v022_s_ctrl(struct v4l2_ctrl *ctrl)
-{
- struct mt9v022 *mt9v022 = container_of(ctrl->handler,
- struct mt9v022, hdl);
- struct v4l2_subdev *sd = &mt9v022->subdev;
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- int data;
-
- switch (ctrl->id) {
- case V4L2_CID_VFLIP:
- if (ctrl->val)
- data = reg_set(client, MT9V022_READ_MODE, 0x10);
- else
- data = reg_clear(client, MT9V022_READ_MODE, 0x10);
- if (data < 0)
- return -EIO;
- return 0;
- case V4L2_CID_HFLIP:
- if (ctrl->val)
- data = reg_set(client, MT9V022_READ_MODE, 0x20);
- else
- data = reg_clear(client, MT9V022_READ_MODE, 0x20);
- if (data < 0)
- return -EIO;
- return 0;
- case V4L2_CID_AUTOGAIN:
- if (ctrl->val) {
- if (reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x2) < 0)
- return -EIO;
- } else {
- struct v4l2_ctrl *gain = mt9v022->gain;
- /* mt9v022 has minimum == default */
- unsigned long range = gain->maximum - gain->minimum;
- /* Valid values 16 to 64, 32 to 64 must be even. */
- unsigned long gain_val = ((gain->val - gain->minimum) *
- 48 + range / 2) / range + 16;
-
- if (gain_val >= 32)
- gain_val &= ~1;
-
- /*
- * The user wants to set gain manually, hope, she
- * knows, what she's doing... Switch AGC off.
- */
- if (reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x2) < 0)
- return -EIO;
-
- dev_dbg(&client->dev, "Setting gain from %d to %lu\n",
- reg_read(client, MT9V022_ANALOG_GAIN), gain_val);
- if (reg_write(client, MT9V022_ANALOG_GAIN, gain_val) < 0)
- return -EIO;
- }
- return 0;
- case V4L2_CID_EXPOSURE_AUTO:
- if (ctrl->val == V4L2_EXPOSURE_AUTO) {
- data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x1);
- } else {
- struct v4l2_ctrl *exp = mt9v022->exposure;
- unsigned long range = exp->maximum - exp->minimum;
- unsigned long shutter = ((exp->val - exp->minimum) *
- 479 + range / 2) / range + 1;
-
- /*
- * The user wants to set shutter width manually, hope,
- * she knows, what she's doing... Switch AEC off.
- */
- data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1);
- if (data < 0)
- return -EIO;
- dev_dbg(&client->dev, "Shutter width from %d to %lu\n",
- reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH),
- shutter);
- if (reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH,
- shutter) < 0)
- return -EIO;
- }
- return 0;
- }
- return -EINVAL;
-}
-
-/*
- * Interface active, can use i2c. If it fails, it can indeed mean, that
- * this wasn't our capture interface, so, we wait for the right one
- */
-static int mt9v022_video_probe(struct i2c_client *client)
-{
- struct mt9v022 *mt9v022 = to_mt9v022(client);
- struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
- s32 data;
- int ret;
- unsigned long flags;
-
- /* Read out the chip version register */
- data = reg_read(client, MT9V022_CHIP_VERSION);
-
- /* must be 0x1311 or 0x1313 */
- if (data != 0x1311 && data != 0x1313) {
- ret = -ENODEV;
- dev_info(&client->dev, "No MT9V022 found, ID register 0x%x\n",
- data);
- goto ei2c;
- }
-
- /* Soft reset */
- ret = reg_write(client, MT9V022_RESET, 1);
- if (ret < 0)
- goto ei2c;
- /* 15 clock cycles */
- udelay(200);
- if (reg_read(client, MT9V022_RESET)) {
- dev_err(&client->dev, "Resetting MT9V022 failed!\n");
- if (ret > 0)
- ret = -EIO;
- goto ei2c;
- }
-
- /* Set monochrome or colour sensor type */
- if (sensor_type && (!strcmp("colour", sensor_type) ||
- !strcmp("color", sensor_type))) {
- ret = reg_write(client, MT9V022_PIXEL_OPERATION_MODE, 4 | 0x11);
- mt9v022->model = V4L2_IDENT_MT9V022IX7ATC;
- mt9v022->fmts = mt9v022_colour_fmts;
- } else {
- ret = reg_write(client, MT9V022_PIXEL_OPERATION_MODE, 0x11);
- mt9v022->model = V4L2_IDENT_MT9V022IX7ATM;
- mt9v022->fmts = mt9v022_monochrome_fmts;
- }
-
- if (ret < 0)
- goto ei2c;
-
- mt9v022->num_fmts = 0;
-
- /*
- * This is a 10bit sensor, so by default we only allow 10bit.
- * The platform may support different bus widths due to
- * different routing of the data lines.
- */
- if (icl->query_bus_param)
- flags = icl->query_bus_param(icl);
- else
- flags = SOCAM_DATAWIDTH_10;
-
- if (flags & SOCAM_DATAWIDTH_10)
- mt9v022->num_fmts++;
- else
- mt9v022->fmts++;
-
- if (flags & SOCAM_DATAWIDTH_8)
- mt9v022->num_fmts++;
-
- mt9v022->fmt = &mt9v022->fmts[0];
-
- dev_info(&client->dev, "Detected a MT9V022 chip ID %x, %s sensor\n",
- data, mt9v022->model == V4L2_IDENT_MT9V022IX7ATM ?
- "monochrome" : "colour");
-
- ret = mt9v022_init(client);
- if (ret < 0)
- dev_err(&client->dev, "Failed to initialise the camera\n");
-
-ei2c:
- return ret;
-}
-
-static int mt9v022_g_skip_top_lines(struct v4l2_subdev *sd, u32 *lines)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9v022 *mt9v022 = to_mt9v022(client);
-
- *lines = mt9v022->y_skip_top;
-
- return 0;
-}
-
-static const struct v4l2_ctrl_ops mt9v022_ctrl_ops = {
- .g_volatile_ctrl = mt9v022_g_volatile_ctrl,
- .s_ctrl = mt9v022_s_ctrl,
-};
-
-static struct v4l2_subdev_core_ops mt9v022_subdev_core_ops = {
- .g_chip_ident = mt9v022_g_chip_ident,
-#ifdef CONFIG_VIDEO_ADV_DEBUG
- .g_register = mt9v022_g_register,
- .s_register = mt9v022_s_register,
-#endif
-};
-
-static int mt9v022_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
- enum v4l2_mbus_pixelcode *code)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct mt9v022 *mt9v022 = to_mt9v022(client);
-
- if (index >= mt9v022->num_fmts)
- return -EINVAL;
-
- *code = mt9v022->fmts[index].code;
- return 0;
-}
-
-static int mt9v022_g_mbus_config(struct v4l2_subdev *sd,
- struct v4l2_mbus_config *cfg)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
-
- cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_SLAVE |
- V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING |
- V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW |
- V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW |
- V4L2_MBUS_DATA_ACTIVE_HIGH;
- cfg->type = V4L2_MBUS_PARALLEL;
- cfg->flags = soc_camera_apply_board_flags(icl, cfg);
-
- return 0;
-}
-
-static int mt9v022_s_mbus_config(struct v4l2_subdev *sd,
- const struct v4l2_mbus_config *cfg)
-{
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
- struct mt9v022 *mt9v022 = to_mt9v022(client);
- unsigned long flags = soc_camera_apply_board_flags(icl, cfg);
- unsigned int bps = soc_mbus_get_fmtdesc(mt9v022->fmt->code)->bits_per_sample;
- int ret;
- u16 pixclk = 0;
-
- if (icl->set_bus_param) {
- ret = icl->set_bus_param(icl, 1 << (bps - 1));
- if (ret)
- return ret;
- } else if (bps != 10) {
- /*
- * Without board specific bus width settings we only support the
- * sensors native bus width
- */
- return -EINVAL;
- }
-
- if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
- pixclk |= 0x10;
-
- if (!(flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH))
- pixclk |= 0x1;
-
- if (!(flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH))
- pixclk |= 0x2;
-
- ret = reg_write(client, MT9V022_PIXCLK_FV_LV, pixclk);
- if (ret < 0)
- return ret;
-
- if (!(flags & V4L2_MBUS_MASTER))
- mt9v022->chip_control &= ~0x8;
-
- ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control);
- if (ret < 0)
- return ret;
-
- dev_dbg(&client->dev, "Calculated pixclk 0x%x, chip control 0x%x\n",
- pixclk, mt9v022->chip_control);
-
- return 0;
-}
-
-static struct v4l2_subdev_video_ops mt9v022_subdev_video_ops = {
- .s_stream = mt9v022_s_stream,
- .s_mbus_fmt = mt9v022_s_fmt,
- .g_mbus_fmt = mt9v022_g_fmt,
- .try_mbus_fmt = mt9v022_try_fmt,
- .s_crop = mt9v022_s_crop,
- .g_crop = mt9v022_g_crop,
- .cropcap = mt9v022_cropcap,
- .enum_mbus_fmt = mt9v022_enum_fmt,
- .g_mbus_config = mt9v022_g_mbus_config,
- .s_mbus_config = mt9v022_s_mbus_config,
-};
-
-static struct v4l2_subdev_sensor_ops mt9v022_subdev_sensor_ops = {
- .g_skip_top_lines = mt9v022_g_skip_top_lines,
-};
-
-static struct v4l2_subdev_ops mt9v022_subdev_ops = {
- .core = &mt9v022_subdev_core_ops,
- .video = &mt9v022_subdev_video_ops,
- .sensor = &mt9v022_subdev_sensor_ops,
-};
-
-static int mt9v022_probe(struct i2c_client *client,
- const struct i2c_device_id *did)
-{
- struct mt9v022 *mt9v022;
- struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
- struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
- int ret;
-
- if (!icl) {
- dev_err(&client->dev, "MT9V022 driver needs platform data\n");
- return -EINVAL;
- }
-
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) {
- dev_warn(&adapter->dev,
- "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
- return -EIO;
- }
-
- mt9v022 = kzalloc(sizeof(struct mt9v022), GFP_KERNEL);
- if (!mt9v022)
- return -ENOMEM;
-
- v4l2_i2c_subdev_init(&mt9v022->subdev, client, &mt9v022_subdev_ops);
- v4l2_ctrl_handler_init(&mt9v022->hdl, 6);
- v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
- V4L2_CID_VFLIP, 0, 1, 1, 0);
- v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
- V4L2_CID_HFLIP, 0, 1, 1, 0);
- mt9v022->autogain = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
- V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
- mt9v022->gain = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
- V4L2_CID_GAIN, 0, 127, 1, 64);
-
- /*
- * Simulated autoexposure. If enabled, we calculate shutter width
- * ourselves in the driver based on vertical blanking and frame width
- */
- mt9v022->autoexposure = v4l2_ctrl_new_std_menu(&mt9v022->hdl,
- &mt9v022_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0,
- V4L2_EXPOSURE_AUTO);
- mt9v022->exposure = v4l2_ctrl_new_std(&mt9v022->hdl, &mt9v022_ctrl_ops,
- V4L2_CID_EXPOSURE, 1, 255, 1, 255);
-
- mt9v022->subdev.ctrl_handler = &mt9v022->hdl;
- if (mt9v022->hdl.error) {
- int err = mt9v022->hdl.error;
-
- kfree(mt9v022);
- return err;
- }
- v4l2_ctrl_auto_cluster(2, &mt9v022->autoexposure,
- V4L2_EXPOSURE_MANUAL, true);
- v4l2_ctrl_auto_cluster(2, &mt9v022->autogain, 0, true);
-
- mt9v022->chip_control = MT9V022_CHIP_CONTROL_DEFAULT;
-
- /*
- * MT9V022 _really_ corrupts the first read out line.
- * TODO: verify on i.MX31
- */
- mt9v022->y_skip_top = 1;
- mt9v022->rect.left = MT9V022_COLUMN_SKIP;
- mt9v022->rect.top = MT9V022_ROW_SKIP;
- mt9v022->rect.width = MT9V022_MAX_WIDTH;
- mt9v022->rect.height = MT9V022_MAX_HEIGHT;
-
- ret = mt9v022_video_probe(client);
- if (ret) {
- v4l2_ctrl_handler_free(&mt9v022->hdl);
- kfree(mt9v022);
- }
-
- return ret;
-}
-
-static int mt9v022_remove(struct i2c_client *client)
-{
- struct mt9v022 *mt9v022 = to_mt9v022(client);
- struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
-
- v4l2_device_unregister_subdev(&mt9v022->subdev);
- if (icl->free_bus)
- icl->free_bus(icl);
- v4l2_ctrl_handler_free(&mt9v022->hdl);
- kfree(mt9v022);
-
- return 0;
-}
-static const struct i2c_device_id mt9v022_id[] = {
- { "mt9v022", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, mt9v022_id);
-
-static struct i2c_driver mt9v022_i2c_driver = {
- .driver = {
- .name = "mt9v022",
- },
- .probe = mt9v022_probe,
- .remove = mt9v022_remove,
- .id_table = mt9v022_id,
-};
-
-module_i2c_driver(mt9v022_i2c_driver);
-
-MODULE_DESCRIPTION("Micron MT9V022 Camera driver");
-MODULE_AUTHOR("Guennadi Liakhovetski <kernel@pengutronix.de>");
-MODULE_LICENSE("GPL");
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