Re: [PATCH v5 03/13] media: mt9m111: move mt9m111 out of soc_camera
From: Guennadi Liakhovetski
Date: Tue Aug 30 2016 - 04:37:46 EST
Hi Robert,
You could use "git format-patch -M" to make this patch much smaller and to
make it simple to verify, what actually changed in mt9m111.c, if anything.
Actually it might even be good to merge this patch with patch #1.
Thanks
Guennadi
On Mon, 29 Aug 2016, Robert Jarzmik wrote:
> As the mt9m111 is now working as a standalone v4l2 subdevice sensor,
> move it out of soc_camera directory and severe its dependency on
> soc_camera.
>
> Signed-off-by: Robert Jarzmik <robert.jarzmik@xxxxxxx>
> ---
> drivers/media/i2c/Kconfig | 7 +
> drivers/media/i2c/Makefile | 1 +
> drivers/media/i2c/mt9m111.c | 1033 ++++++++++++++++++++++++++++++++
> drivers/media/i2c/soc_camera/Kconfig | 7 +-
> drivers/media/i2c/soc_camera/Makefile | 1 -
> drivers/media/i2c/soc_camera/mt9m111.c | 1033 --------------------------------
> 6 files changed, 1046 insertions(+), 1036 deletions(-)
> create mode 100644 drivers/media/i2c/mt9m111.c
> delete mode 100644 drivers/media/i2c/soc_camera/mt9m111.c
>
> diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> index ce9006e10a30..7f8790507660 100644
> --- a/drivers/media/i2c/Kconfig
> +++ b/drivers/media/i2c/Kconfig
> @@ -571,6 +571,13 @@ config VIDEO_MT9M032
> This driver supports MT9M032 camera sensors from Aptina, monochrome
> models only.
>
> +config VIDEO_MT9M111
> + tristate "mt9m111, mt9m112 and mt9m131 support"
> + depends on I2C && VIDEO_V4L2
> + help
> + This driver supports MT9M111, MT9M112 and MT9M131 cameras from
> + Micron/Aptina
> +
> config VIDEO_MT9P031
> tristate "Aptina MT9P031 support"
> depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
> diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
> index 94f2c99e890d..a1a82331bebc 100644
> --- a/drivers/media/i2c/Makefile
> +++ b/drivers/media/i2c/Makefile
> @@ -59,6 +59,7 @@ obj-$(CONFIG_VIDEO_OV7640) += ov7640.o
> obj-$(CONFIG_VIDEO_OV7670) += ov7670.o
> obj-$(CONFIG_VIDEO_OV9650) += ov9650.o
> obj-$(CONFIG_VIDEO_MT9M032) += mt9m032.o
> +obj-$(CONFIG_VIDEO_MT9M111) += mt9m111.o
> obj-$(CONFIG_VIDEO_MT9P031) += mt9p031.o
> obj-$(CONFIG_VIDEO_MT9T001) += mt9t001.o
> obj-$(CONFIG_VIDEO_MT9V011) += mt9v011.o
> diff --git a/drivers/media/i2c/mt9m111.c b/drivers/media/i2c/mt9m111.c
> new file mode 100644
> index 000000000000..b7c4f371bae1
> --- /dev/null
> +++ b/drivers/media/i2c/mt9m111.c
> @@ -0,0 +1,1033 @@
> +/*
> + * Driver for MT9M111/MT9M112/MT9M131 CMOS Image Sensor from Micron/Aptina
> + *
> + * Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@xxxxxxx>
> + *
> + * 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/log2.h>
> +#include <linux/gpio.h>
> +#include <linux/delay.h>
> +#include <linux/v4l2-mediabus.h>
> +#include <linux/module.h>
> +
> +#include <media/v4l2-async.h>
> +#include <media/v4l2-clk.h>
> +#include <media/v4l2-common.h>
> +#include <media/v4l2-ctrls.h>
> +#include <media/v4l2-device.h>
> +
> +/*
> + * MT9M111, MT9M112 and MT9M131:
> + * i2c address is 0x48 or 0x5d (depending on SADDR pin)
> + * The platform has to define struct i2c_board_info objects and link to them
> + * from struct soc_camera_host_desc
> + */
> +
> +/*
> + * Sensor core register addresses (0x000..0x0ff)
> + */
> +#define MT9M111_CHIP_VERSION 0x000
> +#define MT9M111_ROW_START 0x001
> +#define MT9M111_COLUMN_START 0x002
> +#define MT9M111_WINDOW_HEIGHT 0x003
> +#define MT9M111_WINDOW_WIDTH 0x004
> +#define MT9M111_HORIZONTAL_BLANKING_B 0x005
> +#define MT9M111_VERTICAL_BLANKING_B 0x006
> +#define MT9M111_HORIZONTAL_BLANKING_A 0x007
> +#define MT9M111_VERTICAL_BLANKING_A 0x008
> +#define MT9M111_SHUTTER_WIDTH 0x009
> +#define MT9M111_ROW_SPEED 0x00a
> +#define MT9M111_EXTRA_DELAY 0x00b
> +#define MT9M111_SHUTTER_DELAY 0x00c
> +#define MT9M111_RESET 0x00d
> +#define MT9M111_READ_MODE_B 0x020
> +#define MT9M111_READ_MODE_A 0x021
> +#define MT9M111_FLASH_CONTROL 0x023
> +#define MT9M111_GREEN1_GAIN 0x02b
> +#define MT9M111_BLUE_GAIN 0x02c
> +#define MT9M111_RED_GAIN 0x02d
> +#define MT9M111_GREEN2_GAIN 0x02e
> +#define MT9M111_GLOBAL_GAIN 0x02f
> +#define MT9M111_CONTEXT_CONTROL 0x0c8
> +#define MT9M111_PAGE_MAP 0x0f0
> +#define MT9M111_BYTE_WISE_ADDR 0x0f1
> +
> +#define MT9M111_RESET_SYNC_CHANGES (1 << 15)
> +#define MT9M111_RESET_RESTART_BAD_FRAME (1 << 9)
> +#define MT9M111_RESET_SHOW_BAD_FRAMES (1 << 8)
> +#define MT9M111_RESET_RESET_SOC (1 << 5)
> +#define MT9M111_RESET_OUTPUT_DISABLE (1 << 4)
> +#define MT9M111_RESET_CHIP_ENABLE (1 << 3)
> +#define MT9M111_RESET_ANALOG_STANDBY (1 << 2)
> +#define MT9M111_RESET_RESTART_FRAME (1 << 1)
> +#define MT9M111_RESET_RESET_MODE (1 << 0)
> +
> +#define MT9M111_RM_FULL_POWER_RD (0 << 10)
> +#define MT9M111_RM_LOW_POWER_RD (1 << 10)
> +#define MT9M111_RM_COL_SKIP_4X (1 << 5)
> +#define MT9M111_RM_ROW_SKIP_4X (1 << 4)
> +#define MT9M111_RM_COL_SKIP_2X (1 << 3)
> +#define MT9M111_RM_ROW_SKIP_2X (1 << 2)
> +#define MT9M111_RMB_MIRROR_COLS (1 << 1)
> +#define MT9M111_RMB_MIRROR_ROWS (1 << 0)
> +#define MT9M111_CTXT_CTRL_RESTART (1 << 15)
> +#define MT9M111_CTXT_CTRL_DEFECTCOR_B (1 << 12)
> +#define MT9M111_CTXT_CTRL_RESIZE_B (1 << 10)
> +#define MT9M111_CTXT_CTRL_CTRL2_B (1 << 9)
> +#define MT9M111_CTXT_CTRL_GAMMA_B (1 << 8)
> +#define MT9M111_CTXT_CTRL_XENON_EN (1 << 7)
> +#define MT9M111_CTXT_CTRL_READ_MODE_B (1 << 3)
> +#define MT9M111_CTXT_CTRL_LED_FLASH_EN (1 << 2)
> +#define MT9M111_CTXT_CTRL_VBLANK_SEL_B (1 << 1)
> +#define MT9M111_CTXT_CTRL_HBLANK_SEL_B (1 << 0)
> +
> +/*
> + * Colorpipe register addresses (0x100..0x1ff)
> + */
> +#define MT9M111_OPER_MODE_CTRL 0x106
> +#define MT9M111_OUTPUT_FORMAT_CTRL 0x108
> +#define MT9M111_REDUCER_XZOOM_B 0x1a0
> +#define MT9M111_REDUCER_XSIZE_B 0x1a1
> +#define MT9M111_REDUCER_YZOOM_B 0x1a3
> +#define MT9M111_REDUCER_YSIZE_B 0x1a4
> +#define MT9M111_REDUCER_XZOOM_A 0x1a6
> +#define MT9M111_REDUCER_XSIZE_A 0x1a7
> +#define MT9M111_REDUCER_YZOOM_A 0x1a9
> +#define MT9M111_REDUCER_YSIZE_A 0x1aa
> +
> +#define MT9M111_OUTPUT_FORMAT_CTRL2_A 0x13a
> +#define MT9M111_OUTPUT_FORMAT_CTRL2_B 0x19b
> +
> +#define MT9M111_OPMODE_AUTOEXPO_EN (1 << 14)
> +#define MT9M111_OPMODE_AUTOWHITEBAL_EN (1 << 1)
> +#define MT9M111_OUTFMT_FLIP_BAYER_COL (1 << 9)
> +#define MT9M111_OUTFMT_FLIP_BAYER_ROW (1 << 8)
> +#define MT9M111_OUTFMT_PROCESSED_BAYER (1 << 14)
> +#define MT9M111_OUTFMT_BYPASS_IFP (1 << 10)
> +#define MT9M111_OUTFMT_INV_PIX_CLOCK (1 << 9)
> +#define MT9M111_OUTFMT_RGB (1 << 8)
> +#define MT9M111_OUTFMT_RGB565 (0 << 6)
> +#define MT9M111_OUTFMT_RGB555 (1 << 6)
> +#define MT9M111_OUTFMT_RGB444x (2 << 6)
> +#define MT9M111_OUTFMT_RGBx444 (3 << 6)
> +#define MT9M111_OUTFMT_TST_RAMP_OFF (0 << 4)
> +#define MT9M111_OUTFMT_TST_RAMP_COL (1 << 4)
> +#define MT9M111_OUTFMT_TST_RAMP_ROW (2 << 4)
> +#define MT9M111_OUTFMT_TST_RAMP_FRAME (3 << 4)
> +#define MT9M111_OUTFMT_SHIFT_3_UP (1 << 3)
> +#define MT9M111_OUTFMT_AVG_CHROMA (1 << 2)
> +#define MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN (1 << 1)
> +#define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B (1 << 0)
> +
> +/*
> + * Camera control register addresses (0x200..0x2ff not implemented)
> + */
> +
> +#define reg_read(reg) mt9m111_reg_read(client, MT9M111_##reg)
> +#define reg_write(reg, val) mt9m111_reg_write(client, MT9M111_##reg, (val))
> +#define reg_set(reg, val) mt9m111_reg_set(client, MT9M111_##reg, (val))
> +#define reg_clear(reg, val) mt9m111_reg_clear(client, MT9M111_##reg, (val))
> +#define reg_mask(reg, val, mask) mt9m111_reg_mask(client, MT9M111_##reg, \
> + (val), (mask))
> +
> +#define MT9M111_MIN_DARK_ROWS 8
> +#define MT9M111_MIN_DARK_COLS 26
> +#define MT9M111_MAX_HEIGHT 1024
> +#define MT9M111_MAX_WIDTH 1280
> +
> +struct mt9m111_context {
> + u16 read_mode;
> + u16 blanking_h;
> + u16 blanking_v;
> + u16 reducer_xzoom;
> + u16 reducer_yzoom;
> + u16 reducer_xsize;
> + u16 reducer_ysize;
> + u16 output_fmt_ctrl2;
> + u16 control;
> +};
> +
> +static struct mt9m111_context context_a = {
> + .read_mode = MT9M111_READ_MODE_A,
> + .blanking_h = MT9M111_HORIZONTAL_BLANKING_A,
> + .blanking_v = MT9M111_VERTICAL_BLANKING_A,
> + .reducer_xzoom = MT9M111_REDUCER_XZOOM_A,
> + .reducer_yzoom = MT9M111_REDUCER_YZOOM_A,
> + .reducer_xsize = MT9M111_REDUCER_XSIZE_A,
> + .reducer_ysize = MT9M111_REDUCER_YSIZE_A,
> + .output_fmt_ctrl2 = MT9M111_OUTPUT_FORMAT_CTRL2_A,
> + .control = MT9M111_CTXT_CTRL_RESTART,
> +};
> +
> +static struct mt9m111_context context_b = {
> + .read_mode = MT9M111_READ_MODE_B,
> + .blanking_h = MT9M111_HORIZONTAL_BLANKING_B,
> + .blanking_v = MT9M111_VERTICAL_BLANKING_B,
> + .reducer_xzoom = MT9M111_REDUCER_XZOOM_B,
> + .reducer_yzoom = MT9M111_REDUCER_YZOOM_B,
> + .reducer_xsize = MT9M111_REDUCER_XSIZE_B,
> + .reducer_ysize = MT9M111_REDUCER_YSIZE_B,
> + .output_fmt_ctrl2 = MT9M111_OUTPUT_FORMAT_CTRL2_B,
> + .control = MT9M111_CTXT_CTRL_RESTART |
> + MT9M111_CTXT_CTRL_DEFECTCOR_B | MT9M111_CTXT_CTRL_RESIZE_B |
> + MT9M111_CTXT_CTRL_CTRL2_B | MT9M111_CTXT_CTRL_GAMMA_B |
> + MT9M111_CTXT_CTRL_READ_MODE_B | MT9M111_CTXT_CTRL_VBLANK_SEL_B |
> + MT9M111_CTXT_CTRL_HBLANK_SEL_B,
> +};
> +
> +/* MT9M111 has only one fixed colorspace per pixelcode */
> +struct mt9m111_datafmt {
> + u32 code;
> + enum v4l2_colorspace colorspace;
> +};
> +
> +static const struct mt9m111_datafmt mt9m111_colour_fmts[] = {
> + {MEDIA_BUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_SRGB},
> + {MEDIA_BUS_FMT_YVYU8_2X8, V4L2_COLORSPACE_SRGB},
> + {MEDIA_BUS_FMT_UYVY8_2X8, V4L2_COLORSPACE_SRGB},
> + {MEDIA_BUS_FMT_VYUY8_2X8, V4L2_COLORSPACE_SRGB},
> + {MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB},
> + {MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE, V4L2_COLORSPACE_SRGB},
> + {MEDIA_BUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB},
> + {MEDIA_BUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_SRGB},
> + {MEDIA_BUS_FMT_BGR565_2X8_LE, V4L2_COLORSPACE_SRGB},
> + {MEDIA_BUS_FMT_BGR565_2X8_BE, V4L2_COLORSPACE_SRGB},
> + {MEDIA_BUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB},
> + {MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB},
> +};
> +
> +struct mt9m111 {
> + struct v4l2_subdev subdev;
> + struct v4l2_ctrl_handler hdl;
> + struct v4l2_ctrl *gain;
> + struct mt9m111_context *ctx;
> + struct v4l2_rect rect; /* cropping rectangle */
> + struct v4l2_clk *clk;
> + unsigned int width; /* output */
> + unsigned int height; /* sizes */
> + struct mutex power_lock; /* lock to protect power_count */
> + int power_count;
> + const struct mt9m111_datafmt *fmt;
> + int lastpage; /* PageMap cache value */
> +};
> +
> +/* Find a data format by a pixel code */
> +static const struct mt9m111_datafmt *mt9m111_find_datafmt(struct mt9m111 *mt9m111,
> + u32 code)
> +{
> + int i;
> + for (i = 0; i < ARRAY_SIZE(mt9m111_colour_fmts); i++)
> + if (mt9m111_colour_fmts[i].code == code)
> + return mt9m111_colour_fmts + i;
> +
> + return mt9m111->fmt;
> +}
> +
> +static struct mt9m111 *to_mt9m111(const struct i2c_client *client)
> +{
> + return container_of(i2c_get_clientdata(client), struct mt9m111, subdev);
> +}
> +
> +static int reg_page_map_set(struct i2c_client *client, const u16 reg)
> +{
> + int ret;
> + u16 page;
> + struct mt9m111 *mt9m111 = to_mt9m111(client);
> +
> + page = (reg >> 8);
> + if (page == mt9m111->lastpage)
> + return 0;
> + if (page > 2)
> + return -EINVAL;
> +
> + ret = i2c_smbus_write_word_swapped(client, MT9M111_PAGE_MAP, page);
> + if (!ret)
> + mt9m111->lastpage = page;
> + return ret;
> +}
> +
> +static int mt9m111_reg_read(struct i2c_client *client, const u16 reg)
> +{
> + int ret;
> +
> + ret = reg_page_map_set(client, reg);
> + if (!ret)
> + ret = i2c_smbus_read_word_swapped(client, reg & 0xff);
> +
> + dev_dbg(&client->dev, "read reg.%03x -> %04x\n", reg, ret);
> + return ret;
> +}
> +
> +static int mt9m111_reg_write(struct i2c_client *client, const u16 reg,
> + const u16 data)
> +{
> + int ret;
> +
> + ret = reg_page_map_set(client, reg);
> + if (!ret)
> + ret = i2c_smbus_write_word_swapped(client, reg & 0xff, data);
> + dev_dbg(&client->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret);
> + return ret;
> +}
> +
> +static int mt9m111_reg_set(struct i2c_client *client, const u16 reg,
> + const u16 data)
> +{
> + int ret;
> +
> + ret = mt9m111_reg_read(client, reg);
> + if (ret >= 0)
> + ret = mt9m111_reg_write(client, reg, ret | data);
> + return ret;
> +}
> +
> +static int mt9m111_reg_clear(struct i2c_client *client, const u16 reg,
> + const u16 data)
> +{
> + int ret;
> +
> + ret = mt9m111_reg_read(client, reg);
> + if (ret >= 0)
> + ret = mt9m111_reg_write(client, reg, ret & ~data);
> + return ret;
> +}
> +
> +static int mt9m111_reg_mask(struct i2c_client *client, const u16 reg,
> + const u16 data, const u16 mask)
> +{
> + int ret;
> +
> + ret = mt9m111_reg_read(client, reg);
> + if (ret >= 0)
> + ret = mt9m111_reg_write(client, reg, (ret & ~mask) | data);
> + return ret;
> +}
> +
> +static int mt9m111_set_context(struct mt9m111 *mt9m111,
> + struct mt9m111_context *ctx)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> + return reg_write(CONTEXT_CONTROL, ctx->control);
> +}
> +
> +static int mt9m111_setup_rect_ctx(struct mt9m111 *mt9m111,
> + struct mt9m111_context *ctx, struct v4l2_rect *rect,
> + unsigned int width, unsigned int height)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> + int ret = mt9m111_reg_write(client, ctx->reducer_xzoom, rect->width);
> + if (!ret)
> + ret = mt9m111_reg_write(client, ctx->reducer_yzoom, rect->height);
> + if (!ret)
> + ret = mt9m111_reg_write(client, ctx->reducer_xsize, width);
> + if (!ret)
> + ret = mt9m111_reg_write(client, ctx->reducer_ysize, height);
> + return ret;
> +}
> +
> +static int mt9m111_setup_geometry(struct mt9m111 *mt9m111, struct v4l2_rect *rect,
> + int width, int height, u32 code)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> + int ret;
> +
> + ret = reg_write(COLUMN_START, rect->left);
> + if (!ret)
> + ret = reg_write(ROW_START, rect->top);
> +
> + if (!ret)
> + ret = reg_write(WINDOW_WIDTH, rect->width);
> + if (!ret)
> + ret = reg_write(WINDOW_HEIGHT, rect->height);
> +
> + if (code != MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) {
> + /* IFP in use, down-scaling possible */
> + if (!ret)
> + ret = mt9m111_setup_rect_ctx(mt9m111, &context_b,
> + rect, width, height);
> + if (!ret)
> + ret = mt9m111_setup_rect_ctx(mt9m111, &context_a,
> + rect, width, height);
> + }
> +
> + dev_dbg(&client->dev, "%s(%x): %ux%u@%u:%u -> %ux%u = %d\n",
> + __func__, code, rect->width, rect->height, rect->left, rect->top,
> + width, height, ret);
> +
> + return ret;
> +}
> +
> +static int mt9m111_enable(struct mt9m111 *mt9m111)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> + return reg_write(RESET, MT9M111_RESET_CHIP_ENABLE);
> +}
> +
> +static int mt9m111_reset(struct mt9m111 *mt9m111)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> + int ret;
> +
> + ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
> + if (!ret)
> + ret = reg_set(RESET, MT9M111_RESET_RESET_SOC);
> + if (!ret)
> + ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE
> + | MT9M111_RESET_RESET_SOC);
> +
> + return ret;
> +}
> +
> +static int mt9m111_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)
> +{
> + struct v4l2_rect rect = a->c;
> + struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
> + int width, height;
> + int ret, align = 0;
> +
> + if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
> + return -EINVAL;
> +
> + if (mt9m111->fmt->code == MEDIA_BUS_FMT_SBGGR8_1X8 ||
> + mt9m111->fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) {
> + /* Bayer format - even size lengths */
> + align = 1;
> + /* Let the user play with the starting pixel */
> + }
> +
> + /* FIXME: the datasheet doesn't specify minimum sizes */
> + v4l_bound_align_image(&rect.width, 2, MT9M111_MAX_WIDTH, align,
> + &rect.height, 2, MT9M111_MAX_HEIGHT, align, 0);
> + rect.left = clamp(rect.left, MT9M111_MIN_DARK_COLS,
> + MT9M111_MIN_DARK_COLS + MT9M111_MAX_WIDTH -
> + (__s32)rect.width);
> + rect.top = clamp(rect.top, MT9M111_MIN_DARK_ROWS,
> + MT9M111_MIN_DARK_ROWS + MT9M111_MAX_HEIGHT -
> + (__s32)rect.height);
> +
> + width = min(mt9m111->width, rect.width);
> + height = min(mt9m111->height, rect.height);
> +
> + ret = mt9m111_setup_geometry(mt9m111, &rect, width, height, mt9m111->fmt->code);
> + if (!ret) {
> + mt9m111->rect = rect;
> + mt9m111->width = width;
> + mt9m111->height = height;
> + }
> +
> + return ret;
> +}
> +
> +static int mt9m111_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
> +{
> + struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
> +
> + a->c = mt9m111->rect;
> + a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
> +
> + return 0;
> +}
> +
> +static int mt9m111_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
> +{
> + if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
> + return -EINVAL;
> +
> + a->bounds.left = MT9M111_MIN_DARK_COLS;
> + a->bounds.top = MT9M111_MIN_DARK_ROWS;
> + a->bounds.width = MT9M111_MAX_WIDTH;
> + a->bounds.height = MT9M111_MAX_HEIGHT;
> + a->defrect = a->bounds;
> + a->pixelaspect.numerator = 1;
> + a->pixelaspect.denominator = 1;
> +
> + return 0;
> +}
> +
> +static int mt9m111_get_fmt(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_format *format)
> +{
> + struct v4l2_mbus_framefmt *mf = &format->format;
> + struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
> +
> + if (format->pad)
> + return -EINVAL;
> +
> + mf->width = mt9m111->width;
> + mf->height = mt9m111->height;
> + mf->code = mt9m111->fmt->code;
> + mf->colorspace = mt9m111->fmt->colorspace;
> + mf->field = V4L2_FIELD_NONE;
> +
> + return 0;
> +}
> +
> +static int mt9m111_set_pixfmt(struct mt9m111 *mt9m111,
> + u32 code)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> + u16 data_outfmt2, mask_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER |
> + MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB |
> + MT9M111_OUTFMT_RGB565 | MT9M111_OUTFMT_RGB555 |
> + MT9M111_OUTFMT_RGB444x | MT9M111_OUTFMT_RGBx444 |
> + MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
> + MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
> + int ret;
> +
> + switch (code) {
> + case MEDIA_BUS_FMT_SBGGR8_1X8:
> + data_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER |
> + MT9M111_OUTFMT_RGB;
> + break;
> + case MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE:
> + data_outfmt2 = MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB;
> + break;
> + case MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE:
> + data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555 |
> + MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
> + break;
> + case MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE:
> + data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555;
> + break;
> + case MEDIA_BUS_FMT_RGB565_2X8_LE:
> + data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
> + MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
> + break;
> + case MEDIA_BUS_FMT_RGB565_2X8_BE:
> + data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565;
> + break;
> + case MEDIA_BUS_FMT_BGR565_2X8_BE:
> + data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
> + MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
> + break;
> + case MEDIA_BUS_FMT_BGR565_2X8_LE:
> + data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
> + MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
> + MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
> + break;
> + case MEDIA_BUS_FMT_UYVY8_2X8:
> + data_outfmt2 = 0;
> + break;
> + case MEDIA_BUS_FMT_VYUY8_2X8:
> + data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
> + break;
> + case MEDIA_BUS_FMT_YUYV8_2X8:
> + data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
> + break;
> + case MEDIA_BUS_FMT_YVYU8_2X8:
> + data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
> + MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
> + break;
> + default:
> + dev_err(&client->dev, "Pixel format not handled: %x\n", code);
> + return -EINVAL;
> + }
> +
> + ret = mt9m111_reg_mask(client, context_a.output_fmt_ctrl2,
> + data_outfmt2, mask_outfmt2);
> + if (!ret)
> + ret = mt9m111_reg_mask(client, context_b.output_fmt_ctrl2,
> + data_outfmt2, mask_outfmt2);
> +
> + return ret;
> +}
> +
> +static int mt9m111_set_fmt(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_format *format)
> +{
> + struct v4l2_mbus_framefmt *mf = &format->format;
> + struct i2c_client *client = v4l2_get_subdevdata(sd);
> + struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
> + const struct mt9m111_datafmt *fmt;
> + struct v4l2_rect *rect = &mt9m111->rect;
> + bool bayer;
> + int ret;
> +
> + if (format->pad)
> + return -EINVAL;
> +
> + fmt = mt9m111_find_datafmt(mt9m111, mf->code);
> +
> + bayer = fmt->code == MEDIA_BUS_FMT_SBGGR8_1X8 ||
> + fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE;
> +
> + /*
> + * With Bayer format enforce even side lengths, but let the user play
> + * with the starting pixel
> + */
> + if (bayer) {
> + rect->width = ALIGN(rect->width, 2);
> + rect->height = ALIGN(rect->height, 2);
> + }
> +
> + if (fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) {
> + /* IFP bypass mode, no scaling */
> + mf->width = rect->width;
> + mf->height = rect->height;
> + } else {
> + /* No upscaling */
> + if (mf->width > rect->width)
> + mf->width = rect->width;
> + if (mf->height > rect->height)
> + mf->height = rect->height;
> + }
> +
> + dev_dbg(&client->dev, "%s(): %ux%u, code=%x\n", __func__,
> + mf->width, mf->height, fmt->code);
> +
> + mf->code = fmt->code;
> + mf->colorspace = fmt->colorspace;
> +
> + if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
> + cfg->try_fmt = *mf;
> + return 0;
> + }
> +
> + ret = mt9m111_setup_geometry(mt9m111, rect, mf->width, mf->height, mf->code);
> + if (!ret)
> + ret = mt9m111_set_pixfmt(mt9m111, mf->code);
> + if (!ret) {
> + mt9m111->width = mf->width;
> + mt9m111->height = mf->height;
> + mt9m111->fmt = fmt;
> + }
> +
> + return ret;
> +}
> +
> +#ifdef CONFIG_VIDEO_ADV_DEBUG
> +static int mt9m111_g_register(struct v4l2_subdev *sd,
> + struct v4l2_dbg_register *reg)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(sd);
> + int val;
> +
> + if (reg->reg > 0x2ff)
> + return -EINVAL;
> +
> + val = mt9m111_reg_read(client, reg->reg);
> + reg->size = 2;
> + reg->val = (u64)val;
> +
> + if (reg->val > 0xffff)
> + return -EIO;
> +
> + return 0;
> +}
> +
> +static int mt9m111_s_register(struct v4l2_subdev *sd,
> + const struct v4l2_dbg_register *reg)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(sd);
> +
> + if (reg->reg > 0x2ff)
> + return -EINVAL;
> +
> + if (mt9m111_reg_write(client, reg->reg, reg->val) < 0)
> + return -EIO;
> +
> + return 0;
> +}
> +#endif
> +
> +static int mt9m111_set_flip(struct mt9m111 *mt9m111, int flip, int mask)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> + int ret;
> +
> + if (flip)
> + ret = mt9m111_reg_set(client, mt9m111->ctx->read_mode, mask);
> + else
> + ret = mt9m111_reg_clear(client, mt9m111->ctx->read_mode, mask);
> +
> + return ret;
> +}
> +
> +static int mt9m111_get_global_gain(struct mt9m111 *mt9m111)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> + int data;
> +
> + data = reg_read(GLOBAL_GAIN);
> + if (data >= 0)
> + return (data & 0x2f) * (1 << ((data >> 10) & 1)) *
> + (1 << ((data >> 9) & 1));
> + return data;
> +}
> +
> +static int mt9m111_set_global_gain(struct mt9m111 *mt9m111, int gain)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> + u16 val;
> +
> + if (gain > 63 * 2 * 2)
> + return -EINVAL;
> +
> + if ((gain >= 64 * 2) && (gain < 63 * 2 * 2))
> + val = (1 << 10) | (1 << 9) | (gain / 4);
> + else if ((gain >= 64) && (gain < 64 * 2))
> + val = (1 << 9) | (gain / 2);
> + else
> + val = gain;
> +
> + return reg_write(GLOBAL_GAIN, val);
> +}
> +
> +static int mt9m111_set_autoexposure(struct mt9m111 *mt9m111, int val)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> +
> + if (val == V4L2_EXPOSURE_AUTO)
> + return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
> + return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
> +}
> +
> +static int mt9m111_set_autowhitebalance(struct mt9m111 *mt9m111, int on)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> +
> + if (on)
> + return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
> + return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
> +}
> +
> +static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl)
> +{
> + struct mt9m111 *mt9m111 = container_of(ctrl->handler,
> + struct mt9m111, hdl);
> +
> + switch (ctrl->id) {
> + case V4L2_CID_VFLIP:
> + return mt9m111_set_flip(mt9m111, ctrl->val,
> + MT9M111_RMB_MIRROR_ROWS);
> + case V4L2_CID_HFLIP:
> + return mt9m111_set_flip(mt9m111, ctrl->val,
> + MT9M111_RMB_MIRROR_COLS);
> + case V4L2_CID_GAIN:
> + return mt9m111_set_global_gain(mt9m111, ctrl->val);
> + case V4L2_CID_EXPOSURE_AUTO:
> + return mt9m111_set_autoexposure(mt9m111, ctrl->val);
> + case V4L2_CID_AUTO_WHITE_BALANCE:
> + return mt9m111_set_autowhitebalance(mt9m111, ctrl->val);
> + }
> +
> + return -EINVAL;
> +}
> +
> +static int mt9m111_suspend(struct mt9m111 *mt9m111)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> + int ret;
> +
> + v4l2_ctrl_s_ctrl(mt9m111->gain, mt9m111_get_global_gain(mt9m111));
> +
> + ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
> + if (!ret)
> + ret = reg_set(RESET, MT9M111_RESET_RESET_SOC |
> + MT9M111_RESET_OUTPUT_DISABLE |
> + MT9M111_RESET_ANALOG_STANDBY);
> + if (!ret)
> + ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE);
> +
> + return ret;
> +}
> +
> +static void mt9m111_restore_state(struct mt9m111 *mt9m111)
> +{
> + mt9m111_set_context(mt9m111, mt9m111->ctx);
> + mt9m111_set_pixfmt(mt9m111, mt9m111->fmt->code);
> + mt9m111_setup_geometry(mt9m111, &mt9m111->rect,
> + mt9m111->width, mt9m111->height, mt9m111->fmt->code);
> + v4l2_ctrl_handler_setup(&mt9m111->hdl);
> +}
> +
> +static int mt9m111_resume(struct mt9m111 *mt9m111)
> +{
> + int ret = mt9m111_enable(mt9m111);
> + if (!ret)
> + ret = mt9m111_reset(mt9m111);
> + if (!ret)
> + mt9m111_restore_state(mt9m111);
> +
> + return ret;
> +}
> +
> +static int mt9m111_init(struct mt9m111 *mt9m111)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> + int ret;
> +
> + ret = mt9m111_enable(mt9m111);
> + if (!ret)
> + ret = mt9m111_reset(mt9m111);
> + if (!ret)
> + ret = mt9m111_set_context(mt9m111, mt9m111->ctx);
> + if (ret)
> + dev_err(&client->dev, "mt9m111 init failed: %d\n", ret);
> + return ret;
> +}
> +
> +static int mt9m111_power_on(struct mt9m111 *mt9m111)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> + int ret;
> +
> + ret = v4l2_clk_enable(mt9m111->clk);
> + if (ret < 0)
> + return ret;
> +
> + ret = mt9m111_resume(mt9m111);
> + if (ret < 0) {
> + dev_err(&client->dev, "Failed to resume the sensor: %d\n", ret);
> + v4l2_clk_disable(mt9m111->clk);
> + }
> +
> + return ret;
> +}
> +
> +static void mt9m111_power_off(struct mt9m111 *mt9m111)
> +{
> + mt9m111_suspend(mt9m111);
> + v4l2_clk_disable(mt9m111->clk);
> +}
> +
> +static int mt9m111_s_power(struct v4l2_subdev *sd, int on)
> +{
> + struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
> + int ret = 0;
> +
> + mutex_lock(&mt9m111->power_lock);
> +
> + /*
> + * If the power count is modified from 0 to != 0 or from != 0 to 0,
> + * update the power state.
> + */
> + if (mt9m111->power_count == !on) {
> + if (on)
> + ret = mt9m111_power_on(mt9m111);
> + else
> + mt9m111_power_off(mt9m111);
> + }
> +
> + if (!ret) {
> + /* Update the power count. */
> + mt9m111->power_count += on ? 1 : -1;
> + WARN_ON(mt9m111->power_count < 0);
> + }
> +
> + mutex_unlock(&mt9m111->power_lock);
> + return ret;
> +}
> +
> +static const struct v4l2_ctrl_ops mt9m111_ctrl_ops = {
> + .s_ctrl = mt9m111_s_ctrl,
> +};
> +
> +static struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = {
> + .s_power = mt9m111_s_power,
> +#ifdef CONFIG_VIDEO_ADV_DEBUG
> + .g_register = mt9m111_g_register,
> + .s_register = mt9m111_s_register,
> +#endif
> +};
> +
> +static int mt9m111_enum_mbus_code(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_mbus_code_enum *code)
> +{
> + if (code->pad || code->index >= ARRAY_SIZE(mt9m111_colour_fmts))
> + return -EINVAL;
> +
> + code->code = mt9m111_colour_fmts[code->index].code;
> + return 0;
> +}
> +
> +static int mt9m111_g_mbus_config(struct v4l2_subdev *sd,
> + struct v4l2_mbus_config *cfg)
> +{
> + cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING |
> + V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
> + V4L2_MBUS_DATA_ACTIVE_HIGH;
> + cfg->type = V4L2_MBUS_PARALLEL;
> +
> + return 0;
> +}
> +
> +static struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = {
> + .s_crop = mt9m111_s_crop,
> + .g_crop = mt9m111_g_crop,
> + .cropcap = mt9m111_cropcap,
> + .g_mbus_config = mt9m111_g_mbus_config,
> +};
> +
> +static const struct v4l2_subdev_pad_ops mt9m111_subdev_pad_ops = {
> + .enum_mbus_code = mt9m111_enum_mbus_code,
> + .get_fmt = mt9m111_get_fmt,
> + .set_fmt = mt9m111_set_fmt,
> +};
> +
> +static struct v4l2_subdev_ops mt9m111_subdev_ops = {
> + .core = &mt9m111_subdev_core_ops,
> + .video = &mt9m111_subdev_video_ops,
> + .pad = &mt9m111_subdev_pad_ops,
> +};
> +
> +/*
> + * 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 mt9m111_video_probe(struct i2c_client *client)
> +{
> + struct mt9m111 *mt9m111 = to_mt9m111(client);
> + s32 data;
> + int ret;
> +
> + ret = mt9m111_s_power(&mt9m111->subdev, 1);
> + if (ret < 0)
> + return ret;
> +
> + data = reg_read(CHIP_VERSION);
> +
> + switch (data) {
> + case 0x143a: /* MT9M111 or MT9M131 */
> + dev_info(&client->dev,
> + "Detected a MT9M111/MT9M131 chip ID %x\n", data);
> + break;
> + case 0x148c: /* MT9M112 */
> + dev_info(&client->dev, "Detected a MT9M112 chip ID %x\n", data);
> + break;
> + default:
> + dev_err(&client->dev,
> + "No MT9M111/MT9M112/MT9M131 chip detected register read %x\n",
> + data);
> + ret = -ENODEV;
> + goto done;
> + }
> +
> + ret = mt9m111_init(mt9m111);
> + if (ret)
> + goto done;
> +
> + ret = v4l2_ctrl_handler_setup(&mt9m111->hdl);
> +
> +done:
> + mt9m111_s_power(&mt9m111->subdev, 0);
> + return ret;
> +}
> +
> +static int mt9m111_probe(struct i2c_client *client,
> + const struct i2c_device_id *did)
> +{
> + struct mt9m111 *mt9m111;
> + struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
> + int ret;
> +
> + 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;
> + }
> +
> + mt9m111 = devm_kzalloc(&client->dev, sizeof(struct mt9m111), GFP_KERNEL);
> + if (!mt9m111)
> + return -ENOMEM;
> +
> + mt9m111->clk = v4l2_clk_get(&client->dev, "mclk");
> + if (IS_ERR(mt9m111->clk))
> + return -EPROBE_DEFER;
> +
> + /* Default HIGHPOWER context */
> + mt9m111->ctx = &context_b;
> +
> + v4l2_i2c_subdev_init(&mt9m111->subdev, client, &mt9m111_subdev_ops);
> + v4l2_ctrl_handler_init(&mt9m111->hdl, 5);
> + v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
> + V4L2_CID_VFLIP, 0, 1, 1, 0);
> + v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
> + V4L2_CID_HFLIP, 0, 1, 1, 0);
> + v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
> + V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
> + mt9m111->gain = v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
> + V4L2_CID_GAIN, 0, 63 * 2 * 2, 1, 32);
> + v4l2_ctrl_new_std_menu(&mt9m111->hdl,
> + &mt9m111_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0,
> + V4L2_EXPOSURE_AUTO);
> + mt9m111->subdev.ctrl_handler = &mt9m111->hdl;
> + if (mt9m111->hdl.error) {
> + ret = mt9m111->hdl.error;
> + goto out_clkput;
> + }
> +
> + /* Second stage probe - when a capture adapter is there */
> + mt9m111->rect.left = MT9M111_MIN_DARK_COLS;
> + mt9m111->rect.top = MT9M111_MIN_DARK_ROWS;
> + mt9m111->rect.width = MT9M111_MAX_WIDTH;
> + mt9m111->rect.height = MT9M111_MAX_HEIGHT;
> + mt9m111->fmt = &mt9m111_colour_fmts[0];
> + mt9m111->lastpage = -1;
> + mutex_init(&mt9m111->power_lock);
> +
> + ret = mt9m111_video_probe(client);
> + if (ret < 0)
> + goto out_hdlfree;
> +
> + mt9m111->subdev.dev = &client->dev;
> + ret = v4l2_async_register_subdev(&mt9m111->subdev);
> + if (ret < 0)
> + goto out_hdlfree;
> +
> + return 0;
> +
> +out_hdlfree:
> + v4l2_ctrl_handler_free(&mt9m111->hdl);
> +out_clkput:
> + v4l2_clk_put(mt9m111->clk);
> +
> + return ret;
> +}
> +
> +static int mt9m111_remove(struct i2c_client *client)
> +{
> + struct mt9m111 *mt9m111 = to_mt9m111(client);
> +
> + v4l2_async_unregister_subdev(&mt9m111->subdev);
> + v4l2_clk_put(mt9m111->clk);
> + v4l2_ctrl_handler_free(&mt9m111->hdl);
> +
> + return 0;
> +}
> +static const struct of_device_id mt9m111_of_match[] = {
> + { .compatible = "micron,mt9m111", },
> + {},
> +};
> +MODULE_DEVICE_TABLE(of, mt9m111_of_match);
> +
> +static const struct i2c_device_id mt9m111_id[] = {
> + { "mt9m111", 0 },
> + { }
> +};
> +MODULE_DEVICE_TABLE(i2c, mt9m111_id);
> +
> +static struct i2c_driver mt9m111_i2c_driver = {
> + .driver = {
> + .name = "mt9m111",
> + .of_match_table = of_match_ptr(mt9m111_of_match),
> + },
> + .probe = mt9m111_probe,
> + .remove = mt9m111_remove,
> + .id_table = mt9m111_id,
> +};
> +
> +module_i2c_driver(mt9m111_i2c_driver);
> +
> +MODULE_DESCRIPTION("Micron/Aptina MT9M111/MT9M112/MT9M131 Camera driver");
> +MODULE_AUTHOR("Robert Jarzmik");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/media/i2c/soc_camera/Kconfig b/drivers/media/i2c/soc_camera/Kconfig
> index 23d352f0adf0..7704bcf5cc25 100644
> --- a/drivers/media/i2c/soc_camera/Kconfig
> +++ b/drivers/media/i2c/soc_camera/Kconfig
> @@ -14,11 +14,14 @@ config SOC_CAMERA_MT9M001
> and colour models.
>
> config SOC_CAMERA_MT9M111
> - tristate "mt9m111, mt9m112 and mt9m131 support"
> + tristate "legacy soc_camera mt9m111, mt9m112 and mt9m131 support"
> depends on SOC_CAMERA && I2C
> + select VIDEO_MT9M111
> help
> This driver supports MT9M111, MT9M112 and MT9M131 cameras from
> - Micron/Aptina
> + Micron/Aptina.
> + This is the legacy configuration which shouldn't be used anymore,
> + while VIDEO_MT9M111 should be used instead.
>
> config SOC_CAMERA_MT9T031
> tristate "mt9t031 support"
> diff --git a/drivers/media/i2c/soc_camera/Makefile b/drivers/media/i2c/soc_camera/Makefile
> index d0421feaa796..6f994f9353a0 100644
> --- a/drivers/media/i2c/soc_camera/Makefile
> +++ b/drivers/media/i2c/soc_camera/Makefile
> @@ -1,6 +1,5 @@
> obj-$(CONFIG_SOC_CAMERA_IMX074) += imx074.o
> obj-$(CONFIG_SOC_CAMERA_MT9M001) += mt9m001.o
> -obj-$(CONFIG_SOC_CAMERA_MT9M111) += mt9m111.o
> obj-$(CONFIG_SOC_CAMERA_MT9T031) += mt9t031.o
> obj-$(CONFIG_SOC_CAMERA_MT9T112) += mt9t112.o
> obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o
> diff --git a/drivers/media/i2c/soc_camera/mt9m111.c b/drivers/media/i2c/soc_camera/mt9m111.c
> deleted file mode 100644
> index b7c4f371bae1..000000000000
> --- a/drivers/media/i2c/soc_camera/mt9m111.c
> +++ /dev/null
> @@ -1,1033 +0,0 @@
> -/*
> - * Driver for MT9M111/MT9M112/MT9M131 CMOS Image Sensor from Micron/Aptina
> - *
> - * Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@xxxxxxx>
> - *
> - * 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/log2.h>
> -#include <linux/gpio.h>
> -#include <linux/delay.h>
> -#include <linux/v4l2-mediabus.h>
> -#include <linux/module.h>
> -
> -#include <media/v4l2-async.h>
> -#include <media/v4l2-clk.h>
> -#include <media/v4l2-common.h>
> -#include <media/v4l2-ctrls.h>
> -#include <media/v4l2-device.h>
> -
> -/*
> - * MT9M111, MT9M112 and MT9M131:
> - * i2c address is 0x48 or 0x5d (depending on SADDR pin)
> - * The platform has to define struct i2c_board_info objects and link to them
> - * from struct soc_camera_host_desc
> - */
> -
> -/*
> - * Sensor core register addresses (0x000..0x0ff)
> - */
> -#define MT9M111_CHIP_VERSION 0x000
> -#define MT9M111_ROW_START 0x001
> -#define MT9M111_COLUMN_START 0x002
> -#define MT9M111_WINDOW_HEIGHT 0x003
> -#define MT9M111_WINDOW_WIDTH 0x004
> -#define MT9M111_HORIZONTAL_BLANKING_B 0x005
> -#define MT9M111_VERTICAL_BLANKING_B 0x006
> -#define MT9M111_HORIZONTAL_BLANKING_A 0x007
> -#define MT9M111_VERTICAL_BLANKING_A 0x008
> -#define MT9M111_SHUTTER_WIDTH 0x009
> -#define MT9M111_ROW_SPEED 0x00a
> -#define MT9M111_EXTRA_DELAY 0x00b
> -#define MT9M111_SHUTTER_DELAY 0x00c
> -#define MT9M111_RESET 0x00d
> -#define MT9M111_READ_MODE_B 0x020
> -#define MT9M111_READ_MODE_A 0x021
> -#define MT9M111_FLASH_CONTROL 0x023
> -#define MT9M111_GREEN1_GAIN 0x02b
> -#define MT9M111_BLUE_GAIN 0x02c
> -#define MT9M111_RED_GAIN 0x02d
> -#define MT9M111_GREEN2_GAIN 0x02e
> -#define MT9M111_GLOBAL_GAIN 0x02f
> -#define MT9M111_CONTEXT_CONTROL 0x0c8
> -#define MT9M111_PAGE_MAP 0x0f0
> -#define MT9M111_BYTE_WISE_ADDR 0x0f1
> -
> -#define MT9M111_RESET_SYNC_CHANGES (1 << 15)
> -#define MT9M111_RESET_RESTART_BAD_FRAME (1 << 9)
> -#define MT9M111_RESET_SHOW_BAD_FRAMES (1 << 8)
> -#define MT9M111_RESET_RESET_SOC (1 << 5)
> -#define MT9M111_RESET_OUTPUT_DISABLE (1 << 4)
> -#define MT9M111_RESET_CHIP_ENABLE (1 << 3)
> -#define MT9M111_RESET_ANALOG_STANDBY (1 << 2)
> -#define MT9M111_RESET_RESTART_FRAME (1 << 1)
> -#define MT9M111_RESET_RESET_MODE (1 << 0)
> -
> -#define MT9M111_RM_FULL_POWER_RD (0 << 10)
> -#define MT9M111_RM_LOW_POWER_RD (1 << 10)
> -#define MT9M111_RM_COL_SKIP_4X (1 << 5)
> -#define MT9M111_RM_ROW_SKIP_4X (1 << 4)
> -#define MT9M111_RM_COL_SKIP_2X (1 << 3)
> -#define MT9M111_RM_ROW_SKIP_2X (1 << 2)
> -#define MT9M111_RMB_MIRROR_COLS (1 << 1)
> -#define MT9M111_RMB_MIRROR_ROWS (1 << 0)
> -#define MT9M111_CTXT_CTRL_RESTART (1 << 15)
> -#define MT9M111_CTXT_CTRL_DEFECTCOR_B (1 << 12)
> -#define MT9M111_CTXT_CTRL_RESIZE_B (1 << 10)
> -#define MT9M111_CTXT_CTRL_CTRL2_B (1 << 9)
> -#define MT9M111_CTXT_CTRL_GAMMA_B (1 << 8)
> -#define MT9M111_CTXT_CTRL_XENON_EN (1 << 7)
> -#define MT9M111_CTXT_CTRL_READ_MODE_B (1 << 3)
> -#define MT9M111_CTXT_CTRL_LED_FLASH_EN (1 << 2)
> -#define MT9M111_CTXT_CTRL_VBLANK_SEL_B (1 << 1)
> -#define MT9M111_CTXT_CTRL_HBLANK_SEL_B (1 << 0)
> -
> -/*
> - * Colorpipe register addresses (0x100..0x1ff)
> - */
> -#define MT9M111_OPER_MODE_CTRL 0x106
> -#define MT9M111_OUTPUT_FORMAT_CTRL 0x108
> -#define MT9M111_REDUCER_XZOOM_B 0x1a0
> -#define MT9M111_REDUCER_XSIZE_B 0x1a1
> -#define MT9M111_REDUCER_YZOOM_B 0x1a3
> -#define MT9M111_REDUCER_YSIZE_B 0x1a4
> -#define MT9M111_REDUCER_XZOOM_A 0x1a6
> -#define MT9M111_REDUCER_XSIZE_A 0x1a7
> -#define MT9M111_REDUCER_YZOOM_A 0x1a9
> -#define MT9M111_REDUCER_YSIZE_A 0x1aa
> -
> -#define MT9M111_OUTPUT_FORMAT_CTRL2_A 0x13a
> -#define MT9M111_OUTPUT_FORMAT_CTRL2_B 0x19b
> -
> -#define MT9M111_OPMODE_AUTOEXPO_EN (1 << 14)
> -#define MT9M111_OPMODE_AUTOWHITEBAL_EN (1 << 1)
> -#define MT9M111_OUTFMT_FLIP_BAYER_COL (1 << 9)
> -#define MT9M111_OUTFMT_FLIP_BAYER_ROW (1 << 8)
> -#define MT9M111_OUTFMT_PROCESSED_BAYER (1 << 14)
> -#define MT9M111_OUTFMT_BYPASS_IFP (1 << 10)
> -#define MT9M111_OUTFMT_INV_PIX_CLOCK (1 << 9)
> -#define MT9M111_OUTFMT_RGB (1 << 8)
> -#define MT9M111_OUTFMT_RGB565 (0 << 6)
> -#define MT9M111_OUTFMT_RGB555 (1 << 6)
> -#define MT9M111_OUTFMT_RGB444x (2 << 6)
> -#define MT9M111_OUTFMT_RGBx444 (3 << 6)
> -#define MT9M111_OUTFMT_TST_RAMP_OFF (0 << 4)
> -#define MT9M111_OUTFMT_TST_RAMP_COL (1 << 4)
> -#define MT9M111_OUTFMT_TST_RAMP_ROW (2 << 4)
> -#define MT9M111_OUTFMT_TST_RAMP_FRAME (3 << 4)
> -#define MT9M111_OUTFMT_SHIFT_3_UP (1 << 3)
> -#define MT9M111_OUTFMT_AVG_CHROMA (1 << 2)
> -#define MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN (1 << 1)
> -#define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B (1 << 0)
> -
> -/*
> - * Camera control register addresses (0x200..0x2ff not implemented)
> - */
> -
> -#define reg_read(reg) mt9m111_reg_read(client, MT9M111_##reg)
> -#define reg_write(reg, val) mt9m111_reg_write(client, MT9M111_##reg, (val))
> -#define reg_set(reg, val) mt9m111_reg_set(client, MT9M111_##reg, (val))
> -#define reg_clear(reg, val) mt9m111_reg_clear(client, MT9M111_##reg, (val))
> -#define reg_mask(reg, val, mask) mt9m111_reg_mask(client, MT9M111_##reg, \
> - (val), (mask))
> -
> -#define MT9M111_MIN_DARK_ROWS 8
> -#define MT9M111_MIN_DARK_COLS 26
> -#define MT9M111_MAX_HEIGHT 1024
> -#define MT9M111_MAX_WIDTH 1280
> -
> -struct mt9m111_context {
> - u16 read_mode;
> - u16 blanking_h;
> - u16 blanking_v;
> - u16 reducer_xzoom;
> - u16 reducer_yzoom;
> - u16 reducer_xsize;
> - u16 reducer_ysize;
> - u16 output_fmt_ctrl2;
> - u16 control;
> -};
> -
> -static struct mt9m111_context context_a = {
> - .read_mode = MT9M111_READ_MODE_A,
> - .blanking_h = MT9M111_HORIZONTAL_BLANKING_A,
> - .blanking_v = MT9M111_VERTICAL_BLANKING_A,
> - .reducer_xzoom = MT9M111_REDUCER_XZOOM_A,
> - .reducer_yzoom = MT9M111_REDUCER_YZOOM_A,
> - .reducer_xsize = MT9M111_REDUCER_XSIZE_A,
> - .reducer_ysize = MT9M111_REDUCER_YSIZE_A,
> - .output_fmt_ctrl2 = MT9M111_OUTPUT_FORMAT_CTRL2_A,
> - .control = MT9M111_CTXT_CTRL_RESTART,
> -};
> -
> -static struct mt9m111_context context_b = {
> - .read_mode = MT9M111_READ_MODE_B,
> - .blanking_h = MT9M111_HORIZONTAL_BLANKING_B,
> - .blanking_v = MT9M111_VERTICAL_BLANKING_B,
> - .reducer_xzoom = MT9M111_REDUCER_XZOOM_B,
> - .reducer_yzoom = MT9M111_REDUCER_YZOOM_B,
> - .reducer_xsize = MT9M111_REDUCER_XSIZE_B,
> - .reducer_ysize = MT9M111_REDUCER_YSIZE_B,
> - .output_fmt_ctrl2 = MT9M111_OUTPUT_FORMAT_CTRL2_B,
> - .control = MT9M111_CTXT_CTRL_RESTART |
> - MT9M111_CTXT_CTRL_DEFECTCOR_B | MT9M111_CTXT_CTRL_RESIZE_B |
> - MT9M111_CTXT_CTRL_CTRL2_B | MT9M111_CTXT_CTRL_GAMMA_B |
> - MT9M111_CTXT_CTRL_READ_MODE_B | MT9M111_CTXT_CTRL_VBLANK_SEL_B |
> - MT9M111_CTXT_CTRL_HBLANK_SEL_B,
> -};
> -
> -/* MT9M111 has only one fixed colorspace per pixelcode */
> -struct mt9m111_datafmt {
> - u32 code;
> - enum v4l2_colorspace colorspace;
> -};
> -
> -static const struct mt9m111_datafmt mt9m111_colour_fmts[] = {
> - {MEDIA_BUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_SRGB},
> - {MEDIA_BUS_FMT_YVYU8_2X8, V4L2_COLORSPACE_SRGB},
> - {MEDIA_BUS_FMT_UYVY8_2X8, V4L2_COLORSPACE_SRGB},
> - {MEDIA_BUS_FMT_VYUY8_2X8, V4L2_COLORSPACE_SRGB},
> - {MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB},
> - {MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE, V4L2_COLORSPACE_SRGB},
> - {MEDIA_BUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB},
> - {MEDIA_BUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_SRGB},
> - {MEDIA_BUS_FMT_BGR565_2X8_LE, V4L2_COLORSPACE_SRGB},
> - {MEDIA_BUS_FMT_BGR565_2X8_BE, V4L2_COLORSPACE_SRGB},
> - {MEDIA_BUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB},
> - {MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB},
> -};
> -
> -struct mt9m111 {
> - struct v4l2_subdev subdev;
> - struct v4l2_ctrl_handler hdl;
> - struct v4l2_ctrl *gain;
> - struct mt9m111_context *ctx;
> - struct v4l2_rect rect; /* cropping rectangle */
> - struct v4l2_clk *clk;
> - unsigned int width; /* output */
> - unsigned int height; /* sizes */
> - struct mutex power_lock; /* lock to protect power_count */
> - int power_count;
> - const struct mt9m111_datafmt *fmt;
> - int lastpage; /* PageMap cache value */
> -};
> -
> -/* Find a data format by a pixel code */
> -static const struct mt9m111_datafmt *mt9m111_find_datafmt(struct mt9m111 *mt9m111,
> - u32 code)
> -{
> - int i;
> - for (i = 0; i < ARRAY_SIZE(mt9m111_colour_fmts); i++)
> - if (mt9m111_colour_fmts[i].code == code)
> - return mt9m111_colour_fmts + i;
> -
> - return mt9m111->fmt;
> -}
> -
> -static struct mt9m111 *to_mt9m111(const struct i2c_client *client)
> -{
> - return container_of(i2c_get_clientdata(client), struct mt9m111, subdev);
> -}
> -
> -static int reg_page_map_set(struct i2c_client *client, const u16 reg)
> -{
> - int ret;
> - u16 page;
> - struct mt9m111 *mt9m111 = to_mt9m111(client);
> -
> - page = (reg >> 8);
> - if (page == mt9m111->lastpage)
> - return 0;
> - if (page > 2)
> - return -EINVAL;
> -
> - ret = i2c_smbus_write_word_swapped(client, MT9M111_PAGE_MAP, page);
> - if (!ret)
> - mt9m111->lastpage = page;
> - return ret;
> -}
> -
> -static int mt9m111_reg_read(struct i2c_client *client, const u16 reg)
> -{
> - int ret;
> -
> - ret = reg_page_map_set(client, reg);
> - if (!ret)
> - ret = i2c_smbus_read_word_swapped(client, reg & 0xff);
> -
> - dev_dbg(&client->dev, "read reg.%03x -> %04x\n", reg, ret);
> - return ret;
> -}
> -
> -static int mt9m111_reg_write(struct i2c_client *client, const u16 reg,
> - const u16 data)
> -{
> - int ret;
> -
> - ret = reg_page_map_set(client, reg);
> - if (!ret)
> - ret = i2c_smbus_write_word_swapped(client, reg & 0xff, data);
> - dev_dbg(&client->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret);
> - return ret;
> -}
> -
> -static int mt9m111_reg_set(struct i2c_client *client, const u16 reg,
> - const u16 data)
> -{
> - int ret;
> -
> - ret = mt9m111_reg_read(client, reg);
> - if (ret >= 0)
> - ret = mt9m111_reg_write(client, reg, ret | data);
> - return ret;
> -}
> -
> -static int mt9m111_reg_clear(struct i2c_client *client, const u16 reg,
> - const u16 data)
> -{
> - int ret;
> -
> - ret = mt9m111_reg_read(client, reg);
> - if (ret >= 0)
> - ret = mt9m111_reg_write(client, reg, ret & ~data);
> - return ret;
> -}
> -
> -static int mt9m111_reg_mask(struct i2c_client *client, const u16 reg,
> - const u16 data, const u16 mask)
> -{
> - int ret;
> -
> - ret = mt9m111_reg_read(client, reg);
> - if (ret >= 0)
> - ret = mt9m111_reg_write(client, reg, (ret & ~mask) | data);
> - return ret;
> -}
> -
> -static int mt9m111_set_context(struct mt9m111 *mt9m111,
> - struct mt9m111_context *ctx)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> - return reg_write(CONTEXT_CONTROL, ctx->control);
> -}
> -
> -static int mt9m111_setup_rect_ctx(struct mt9m111 *mt9m111,
> - struct mt9m111_context *ctx, struct v4l2_rect *rect,
> - unsigned int width, unsigned int height)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> - int ret = mt9m111_reg_write(client, ctx->reducer_xzoom, rect->width);
> - if (!ret)
> - ret = mt9m111_reg_write(client, ctx->reducer_yzoom, rect->height);
> - if (!ret)
> - ret = mt9m111_reg_write(client, ctx->reducer_xsize, width);
> - if (!ret)
> - ret = mt9m111_reg_write(client, ctx->reducer_ysize, height);
> - return ret;
> -}
> -
> -static int mt9m111_setup_geometry(struct mt9m111 *mt9m111, struct v4l2_rect *rect,
> - int width, int height, u32 code)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> - int ret;
> -
> - ret = reg_write(COLUMN_START, rect->left);
> - if (!ret)
> - ret = reg_write(ROW_START, rect->top);
> -
> - if (!ret)
> - ret = reg_write(WINDOW_WIDTH, rect->width);
> - if (!ret)
> - ret = reg_write(WINDOW_HEIGHT, rect->height);
> -
> - if (code != MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) {
> - /* IFP in use, down-scaling possible */
> - if (!ret)
> - ret = mt9m111_setup_rect_ctx(mt9m111, &context_b,
> - rect, width, height);
> - if (!ret)
> - ret = mt9m111_setup_rect_ctx(mt9m111, &context_a,
> - rect, width, height);
> - }
> -
> - dev_dbg(&client->dev, "%s(%x): %ux%u@%u:%u -> %ux%u = %d\n",
> - __func__, code, rect->width, rect->height, rect->left, rect->top,
> - width, height, ret);
> -
> - return ret;
> -}
> -
> -static int mt9m111_enable(struct mt9m111 *mt9m111)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> - return reg_write(RESET, MT9M111_RESET_CHIP_ENABLE);
> -}
> -
> -static int mt9m111_reset(struct mt9m111 *mt9m111)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> - int ret;
> -
> - ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
> - if (!ret)
> - ret = reg_set(RESET, MT9M111_RESET_RESET_SOC);
> - if (!ret)
> - ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE
> - | MT9M111_RESET_RESET_SOC);
> -
> - return ret;
> -}
> -
> -static int mt9m111_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)
> -{
> - struct v4l2_rect rect = a->c;
> - struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
> - int width, height;
> - int ret, align = 0;
> -
> - if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
> - return -EINVAL;
> -
> - if (mt9m111->fmt->code == MEDIA_BUS_FMT_SBGGR8_1X8 ||
> - mt9m111->fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) {
> - /* Bayer format - even size lengths */
> - align = 1;
> - /* Let the user play with the starting pixel */
> - }
> -
> - /* FIXME: the datasheet doesn't specify minimum sizes */
> - v4l_bound_align_image(&rect.width, 2, MT9M111_MAX_WIDTH, align,
> - &rect.height, 2, MT9M111_MAX_HEIGHT, align, 0);
> - rect.left = clamp(rect.left, MT9M111_MIN_DARK_COLS,
> - MT9M111_MIN_DARK_COLS + MT9M111_MAX_WIDTH -
> - (__s32)rect.width);
> - rect.top = clamp(rect.top, MT9M111_MIN_DARK_ROWS,
> - MT9M111_MIN_DARK_ROWS + MT9M111_MAX_HEIGHT -
> - (__s32)rect.height);
> -
> - width = min(mt9m111->width, rect.width);
> - height = min(mt9m111->height, rect.height);
> -
> - ret = mt9m111_setup_geometry(mt9m111, &rect, width, height, mt9m111->fmt->code);
> - if (!ret) {
> - mt9m111->rect = rect;
> - mt9m111->width = width;
> - mt9m111->height = height;
> - }
> -
> - return ret;
> -}
> -
> -static int mt9m111_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
> -{
> - struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
> -
> - a->c = mt9m111->rect;
> - a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
> -
> - return 0;
> -}
> -
> -static int mt9m111_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
> -{
> - if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
> - return -EINVAL;
> -
> - a->bounds.left = MT9M111_MIN_DARK_COLS;
> - a->bounds.top = MT9M111_MIN_DARK_ROWS;
> - a->bounds.width = MT9M111_MAX_WIDTH;
> - a->bounds.height = MT9M111_MAX_HEIGHT;
> - a->defrect = a->bounds;
> - a->pixelaspect.numerator = 1;
> - a->pixelaspect.denominator = 1;
> -
> - return 0;
> -}
> -
> -static int mt9m111_get_fmt(struct v4l2_subdev *sd,
> - struct v4l2_subdev_pad_config *cfg,
> - struct v4l2_subdev_format *format)
> -{
> - struct v4l2_mbus_framefmt *mf = &format->format;
> - struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
> -
> - if (format->pad)
> - return -EINVAL;
> -
> - mf->width = mt9m111->width;
> - mf->height = mt9m111->height;
> - mf->code = mt9m111->fmt->code;
> - mf->colorspace = mt9m111->fmt->colorspace;
> - mf->field = V4L2_FIELD_NONE;
> -
> - return 0;
> -}
> -
> -static int mt9m111_set_pixfmt(struct mt9m111 *mt9m111,
> - u32 code)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> - u16 data_outfmt2, mask_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER |
> - MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB |
> - MT9M111_OUTFMT_RGB565 | MT9M111_OUTFMT_RGB555 |
> - MT9M111_OUTFMT_RGB444x | MT9M111_OUTFMT_RGBx444 |
> - MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
> - MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
> - int ret;
> -
> - switch (code) {
> - case MEDIA_BUS_FMT_SBGGR8_1X8:
> - data_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER |
> - MT9M111_OUTFMT_RGB;
> - break;
> - case MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE:
> - data_outfmt2 = MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB;
> - break;
> - case MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE:
> - data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555 |
> - MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
> - break;
> - case MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE:
> - data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555;
> - break;
> - case MEDIA_BUS_FMT_RGB565_2X8_LE:
> - data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
> - MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
> - break;
> - case MEDIA_BUS_FMT_RGB565_2X8_BE:
> - data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565;
> - break;
> - case MEDIA_BUS_FMT_BGR565_2X8_BE:
> - data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
> - MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
> - break;
> - case MEDIA_BUS_FMT_BGR565_2X8_LE:
> - data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
> - MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
> - MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
> - break;
> - case MEDIA_BUS_FMT_UYVY8_2X8:
> - data_outfmt2 = 0;
> - break;
> - case MEDIA_BUS_FMT_VYUY8_2X8:
> - data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
> - break;
> - case MEDIA_BUS_FMT_YUYV8_2X8:
> - data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
> - break;
> - case MEDIA_BUS_FMT_YVYU8_2X8:
> - data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
> - MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
> - break;
> - default:
> - dev_err(&client->dev, "Pixel format not handled: %x\n", code);
> - return -EINVAL;
> - }
> -
> - ret = mt9m111_reg_mask(client, context_a.output_fmt_ctrl2,
> - data_outfmt2, mask_outfmt2);
> - if (!ret)
> - ret = mt9m111_reg_mask(client, context_b.output_fmt_ctrl2,
> - data_outfmt2, mask_outfmt2);
> -
> - return ret;
> -}
> -
> -static int mt9m111_set_fmt(struct v4l2_subdev *sd,
> - struct v4l2_subdev_pad_config *cfg,
> - struct v4l2_subdev_format *format)
> -{
> - struct v4l2_mbus_framefmt *mf = &format->format;
> - struct i2c_client *client = v4l2_get_subdevdata(sd);
> - struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
> - const struct mt9m111_datafmt *fmt;
> - struct v4l2_rect *rect = &mt9m111->rect;
> - bool bayer;
> - int ret;
> -
> - if (format->pad)
> - return -EINVAL;
> -
> - fmt = mt9m111_find_datafmt(mt9m111, mf->code);
> -
> - bayer = fmt->code == MEDIA_BUS_FMT_SBGGR8_1X8 ||
> - fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE;
> -
> - /*
> - * With Bayer format enforce even side lengths, but let the user play
> - * with the starting pixel
> - */
> - if (bayer) {
> - rect->width = ALIGN(rect->width, 2);
> - rect->height = ALIGN(rect->height, 2);
> - }
> -
> - if (fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) {
> - /* IFP bypass mode, no scaling */
> - mf->width = rect->width;
> - mf->height = rect->height;
> - } else {
> - /* No upscaling */
> - if (mf->width > rect->width)
> - mf->width = rect->width;
> - if (mf->height > rect->height)
> - mf->height = rect->height;
> - }
> -
> - dev_dbg(&client->dev, "%s(): %ux%u, code=%x\n", __func__,
> - mf->width, mf->height, fmt->code);
> -
> - mf->code = fmt->code;
> - mf->colorspace = fmt->colorspace;
> -
> - if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
> - cfg->try_fmt = *mf;
> - return 0;
> - }
> -
> - ret = mt9m111_setup_geometry(mt9m111, rect, mf->width, mf->height, mf->code);
> - if (!ret)
> - ret = mt9m111_set_pixfmt(mt9m111, mf->code);
> - if (!ret) {
> - mt9m111->width = mf->width;
> - mt9m111->height = mf->height;
> - mt9m111->fmt = fmt;
> - }
> -
> - return ret;
> -}
> -
> -#ifdef CONFIG_VIDEO_ADV_DEBUG
> -static int mt9m111_g_register(struct v4l2_subdev *sd,
> - struct v4l2_dbg_register *reg)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(sd);
> - int val;
> -
> - if (reg->reg > 0x2ff)
> - return -EINVAL;
> -
> - val = mt9m111_reg_read(client, reg->reg);
> - reg->size = 2;
> - reg->val = (u64)val;
> -
> - if (reg->val > 0xffff)
> - return -EIO;
> -
> - return 0;
> -}
> -
> -static int mt9m111_s_register(struct v4l2_subdev *sd,
> - const struct v4l2_dbg_register *reg)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(sd);
> -
> - if (reg->reg > 0x2ff)
> - return -EINVAL;
> -
> - if (mt9m111_reg_write(client, reg->reg, reg->val) < 0)
> - return -EIO;
> -
> - return 0;
> -}
> -#endif
> -
> -static int mt9m111_set_flip(struct mt9m111 *mt9m111, int flip, int mask)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> - int ret;
> -
> - if (flip)
> - ret = mt9m111_reg_set(client, mt9m111->ctx->read_mode, mask);
> - else
> - ret = mt9m111_reg_clear(client, mt9m111->ctx->read_mode, mask);
> -
> - return ret;
> -}
> -
> -static int mt9m111_get_global_gain(struct mt9m111 *mt9m111)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> - int data;
> -
> - data = reg_read(GLOBAL_GAIN);
> - if (data >= 0)
> - return (data & 0x2f) * (1 << ((data >> 10) & 1)) *
> - (1 << ((data >> 9) & 1));
> - return data;
> -}
> -
> -static int mt9m111_set_global_gain(struct mt9m111 *mt9m111, int gain)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> - u16 val;
> -
> - if (gain > 63 * 2 * 2)
> - return -EINVAL;
> -
> - if ((gain >= 64 * 2) && (gain < 63 * 2 * 2))
> - val = (1 << 10) | (1 << 9) | (gain / 4);
> - else if ((gain >= 64) && (gain < 64 * 2))
> - val = (1 << 9) | (gain / 2);
> - else
> - val = gain;
> -
> - return reg_write(GLOBAL_GAIN, val);
> -}
> -
> -static int mt9m111_set_autoexposure(struct mt9m111 *mt9m111, int val)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> -
> - if (val == V4L2_EXPOSURE_AUTO)
> - return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
> - return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
> -}
> -
> -static int mt9m111_set_autowhitebalance(struct mt9m111 *mt9m111, int on)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> -
> - if (on)
> - return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
> - return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
> -}
> -
> -static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl)
> -{
> - struct mt9m111 *mt9m111 = container_of(ctrl->handler,
> - struct mt9m111, hdl);
> -
> - switch (ctrl->id) {
> - case V4L2_CID_VFLIP:
> - return mt9m111_set_flip(mt9m111, ctrl->val,
> - MT9M111_RMB_MIRROR_ROWS);
> - case V4L2_CID_HFLIP:
> - return mt9m111_set_flip(mt9m111, ctrl->val,
> - MT9M111_RMB_MIRROR_COLS);
> - case V4L2_CID_GAIN:
> - return mt9m111_set_global_gain(mt9m111, ctrl->val);
> - case V4L2_CID_EXPOSURE_AUTO:
> - return mt9m111_set_autoexposure(mt9m111, ctrl->val);
> - case V4L2_CID_AUTO_WHITE_BALANCE:
> - return mt9m111_set_autowhitebalance(mt9m111, ctrl->val);
> - }
> -
> - return -EINVAL;
> -}
> -
> -static int mt9m111_suspend(struct mt9m111 *mt9m111)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> - int ret;
> -
> - v4l2_ctrl_s_ctrl(mt9m111->gain, mt9m111_get_global_gain(mt9m111));
> -
> - ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
> - if (!ret)
> - ret = reg_set(RESET, MT9M111_RESET_RESET_SOC |
> - MT9M111_RESET_OUTPUT_DISABLE |
> - MT9M111_RESET_ANALOG_STANDBY);
> - if (!ret)
> - ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE);
> -
> - return ret;
> -}
> -
> -static void mt9m111_restore_state(struct mt9m111 *mt9m111)
> -{
> - mt9m111_set_context(mt9m111, mt9m111->ctx);
> - mt9m111_set_pixfmt(mt9m111, mt9m111->fmt->code);
> - mt9m111_setup_geometry(mt9m111, &mt9m111->rect,
> - mt9m111->width, mt9m111->height, mt9m111->fmt->code);
> - v4l2_ctrl_handler_setup(&mt9m111->hdl);
> -}
> -
> -static int mt9m111_resume(struct mt9m111 *mt9m111)
> -{
> - int ret = mt9m111_enable(mt9m111);
> - if (!ret)
> - ret = mt9m111_reset(mt9m111);
> - if (!ret)
> - mt9m111_restore_state(mt9m111);
> -
> - return ret;
> -}
> -
> -static int mt9m111_init(struct mt9m111 *mt9m111)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> - int ret;
> -
> - ret = mt9m111_enable(mt9m111);
> - if (!ret)
> - ret = mt9m111_reset(mt9m111);
> - if (!ret)
> - ret = mt9m111_set_context(mt9m111, mt9m111->ctx);
> - if (ret)
> - dev_err(&client->dev, "mt9m111 init failed: %d\n", ret);
> - return ret;
> -}
> -
> -static int mt9m111_power_on(struct mt9m111 *mt9m111)
> -{
> - struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
> - int ret;
> -
> - ret = v4l2_clk_enable(mt9m111->clk);
> - if (ret < 0)
> - return ret;
> -
> - ret = mt9m111_resume(mt9m111);
> - if (ret < 0) {
> - dev_err(&client->dev, "Failed to resume the sensor: %d\n", ret);
> - v4l2_clk_disable(mt9m111->clk);
> - }
> -
> - return ret;
> -}
> -
> -static void mt9m111_power_off(struct mt9m111 *mt9m111)
> -{
> - mt9m111_suspend(mt9m111);
> - v4l2_clk_disable(mt9m111->clk);
> -}
> -
> -static int mt9m111_s_power(struct v4l2_subdev *sd, int on)
> -{
> - struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
> - int ret = 0;
> -
> - mutex_lock(&mt9m111->power_lock);
> -
> - /*
> - * If the power count is modified from 0 to != 0 or from != 0 to 0,
> - * update the power state.
> - */
> - if (mt9m111->power_count == !on) {
> - if (on)
> - ret = mt9m111_power_on(mt9m111);
> - else
> - mt9m111_power_off(mt9m111);
> - }
> -
> - if (!ret) {
> - /* Update the power count. */
> - mt9m111->power_count += on ? 1 : -1;
> - WARN_ON(mt9m111->power_count < 0);
> - }
> -
> - mutex_unlock(&mt9m111->power_lock);
> - return ret;
> -}
> -
> -static const struct v4l2_ctrl_ops mt9m111_ctrl_ops = {
> - .s_ctrl = mt9m111_s_ctrl,
> -};
> -
> -static struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = {
> - .s_power = mt9m111_s_power,
> -#ifdef CONFIG_VIDEO_ADV_DEBUG
> - .g_register = mt9m111_g_register,
> - .s_register = mt9m111_s_register,
> -#endif
> -};
> -
> -static int mt9m111_enum_mbus_code(struct v4l2_subdev *sd,
> - struct v4l2_subdev_pad_config *cfg,
> - struct v4l2_subdev_mbus_code_enum *code)
> -{
> - if (code->pad || code->index >= ARRAY_SIZE(mt9m111_colour_fmts))
> - return -EINVAL;
> -
> - code->code = mt9m111_colour_fmts[code->index].code;
> - return 0;
> -}
> -
> -static int mt9m111_g_mbus_config(struct v4l2_subdev *sd,
> - struct v4l2_mbus_config *cfg)
> -{
> - cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING |
> - V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
> - V4L2_MBUS_DATA_ACTIVE_HIGH;
> - cfg->type = V4L2_MBUS_PARALLEL;
> -
> - return 0;
> -}
> -
> -static struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = {
> - .s_crop = mt9m111_s_crop,
> - .g_crop = mt9m111_g_crop,
> - .cropcap = mt9m111_cropcap,
> - .g_mbus_config = mt9m111_g_mbus_config,
> -};
> -
> -static const struct v4l2_subdev_pad_ops mt9m111_subdev_pad_ops = {
> - .enum_mbus_code = mt9m111_enum_mbus_code,
> - .get_fmt = mt9m111_get_fmt,
> - .set_fmt = mt9m111_set_fmt,
> -};
> -
> -static struct v4l2_subdev_ops mt9m111_subdev_ops = {
> - .core = &mt9m111_subdev_core_ops,
> - .video = &mt9m111_subdev_video_ops,
> - .pad = &mt9m111_subdev_pad_ops,
> -};
> -
> -/*
> - * 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 mt9m111_video_probe(struct i2c_client *client)
> -{
> - struct mt9m111 *mt9m111 = to_mt9m111(client);
> - s32 data;
> - int ret;
> -
> - ret = mt9m111_s_power(&mt9m111->subdev, 1);
> - if (ret < 0)
> - return ret;
> -
> - data = reg_read(CHIP_VERSION);
> -
> - switch (data) {
> - case 0x143a: /* MT9M111 or MT9M131 */
> - dev_info(&client->dev,
> - "Detected a MT9M111/MT9M131 chip ID %x\n", data);
> - break;
> - case 0x148c: /* MT9M112 */
> - dev_info(&client->dev, "Detected a MT9M112 chip ID %x\n", data);
> - break;
> - default:
> - dev_err(&client->dev,
> - "No MT9M111/MT9M112/MT9M131 chip detected register read %x\n",
> - data);
> - ret = -ENODEV;
> - goto done;
> - }
> -
> - ret = mt9m111_init(mt9m111);
> - if (ret)
> - goto done;
> -
> - ret = v4l2_ctrl_handler_setup(&mt9m111->hdl);
> -
> -done:
> - mt9m111_s_power(&mt9m111->subdev, 0);
> - return ret;
> -}
> -
> -static int mt9m111_probe(struct i2c_client *client,
> - const struct i2c_device_id *did)
> -{
> - struct mt9m111 *mt9m111;
> - struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
> - int ret;
> -
> - 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;
> - }
> -
> - mt9m111 = devm_kzalloc(&client->dev, sizeof(struct mt9m111), GFP_KERNEL);
> - if (!mt9m111)
> - return -ENOMEM;
> -
> - mt9m111->clk = v4l2_clk_get(&client->dev, "mclk");
> - if (IS_ERR(mt9m111->clk))
> - return -EPROBE_DEFER;
> -
> - /* Default HIGHPOWER context */
> - mt9m111->ctx = &context_b;
> -
> - v4l2_i2c_subdev_init(&mt9m111->subdev, client, &mt9m111_subdev_ops);
> - v4l2_ctrl_handler_init(&mt9m111->hdl, 5);
> - v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
> - V4L2_CID_VFLIP, 0, 1, 1, 0);
> - v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
> - V4L2_CID_HFLIP, 0, 1, 1, 0);
> - v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
> - V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
> - mt9m111->gain = v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
> - V4L2_CID_GAIN, 0, 63 * 2 * 2, 1, 32);
> - v4l2_ctrl_new_std_menu(&mt9m111->hdl,
> - &mt9m111_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0,
> - V4L2_EXPOSURE_AUTO);
> - mt9m111->subdev.ctrl_handler = &mt9m111->hdl;
> - if (mt9m111->hdl.error) {
> - ret = mt9m111->hdl.error;
> - goto out_clkput;
> - }
> -
> - /* Second stage probe - when a capture adapter is there */
> - mt9m111->rect.left = MT9M111_MIN_DARK_COLS;
> - mt9m111->rect.top = MT9M111_MIN_DARK_ROWS;
> - mt9m111->rect.width = MT9M111_MAX_WIDTH;
> - mt9m111->rect.height = MT9M111_MAX_HEIGHT;
> - mt9m111->fmt = &mt9m111_colour_fmts[0];
> - mt9m111->lastpage = -1;
> - mutex_init(&mt9m111->power_lock);
> -
> - ret = mt9m111_video_probe(client);
> - if (ret < 0)
> - goto out_hdlfree;
> -
> - mt9m111->subdev.dev = &client->dev;
> - ret = v4l2_async_register_subdev(&mt9m111->subdev);
> - if (ret < 0)
> - goto out_hdlfree;
> -
> - return 0;
> -
> -out_hdlfree:
> - v4l2_ctrl_handler_free(&mt9m111->hdl);
> -out_clkput:
> - v4l2_clk_put(mt9m111->clk);
> -
> - return ret;
> -}
> -
> -static int mt9m111_remove(struct i2c_client *client)
> -{
> - struct mt9m111 *mt9m111 = to_mt9m111(client);
> -
> - v4l2_async_unregister_subdev(&mt9m111->subdev);
> - v4l2_clk_put(mt9m111->clk);
> - v4l2_ctrl_handler_free(&mt9m111->hdl);
> -
> - return 0;
> -}
> -static const struct of_device_id mt9m111_of_match[] = {
> - { .compatible = "micron,mt9m111", },
> - {},
> -};
> -MODULE_DEVICE_TABLE(of, mt9m111_of_match);
> -
> -static const struct i2c_device_id mt9m111_id[] = {
> - { "mt9m111", 0 },
> - { }
> -};
> -MODULE_DEVICE_TABLE(i2c, mt9m111_id);
> -
> -static struct i2c_driver mt9m111_i2c_driver = {
> - .driver = {
> - .name = "mt9m111",
> - .of_match_table = of_match_ptr(mt9m111_of_match),
> - },
> - .probe = mt9m111_probe,
> - .remove = mt9m111_remove,
> - .id_table = mt9m111_id,
> -};
> -
> -module_i2c_driver(mt9m111_i2c_driver);
> -
> -MODULE_DESCRIPTION("Micron/Aptina MT9M111/MT9M112/MT9M131 Camera driver");
> -MODULE_AUTHOR("Robert Jarzmik");
> -MODULE_LICENSE("GPL");
> --
> 2.1.4
>