![Wolfram Sang](/assets/img/avatar_default.png)
The i2c-core does this already. Reported-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
1131 lines
28 KiB
C
1131 lines
28 KiB
C
/*
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* Driver for MT9M111/MT9M112/MT9M131 CMOS Image Sensor from Micron/Aptina
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*
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* Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@free.fr>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/videodev2.h>
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#include <linux/slab.h>
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#include <linux/i2c.h>
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#include <linux/log2.h>
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#include <linux/gpio.h>
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#include <linux/delay.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-chip-ident.h>
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#include <media/soc_camera.h>
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/*
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* MT9M111, MT9M112 and MT9M131:
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* i2c address is 0x48 or 0x5d (depending on SADDR pin)
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* The platform has to define i2c_board_info and call i2c_register_board_info()
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*/
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/*
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* Sensor core register addresses (0x000..0x0ff)
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*/
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#define MT9M111_CHIP_VERSION 0x000
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#define MT9M111_ROW_START 0x001
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#define MT9M111_COLUMN_START 0x002
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#define MT9M111_WINDOW_HEIGHT 0x003
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#define MT9M111_WINDOW_WIDTH 0x004
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#define MT9M111_HORIZONTAL_BLANKING_B 0x005
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#define MT9M111_VERTICAL_BLANKING_B 0x006
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#define MT9M111_HORIZONTAL_BLANKING_A 0x007
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#define MT9M111_VERTICAL_BLANKING_A 0x008
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#define MT9M111_SHUTTER_WIDTH 0x009
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#define MT9M111_ROW_SPEED 0x00a
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#define MT9M111_EXTRA_DELAY 0x00b
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#define MT9M111_SHUTTER_DELAY 0x00c
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#define MT9M111_RESET 0x00d
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#define MT9M111_READ_MODE_B 0x020
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#define MT9M111_READ_MODE_A 0x021
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#define MT9M111_FLASH_CONTROL 0x023
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#define MT9M111_GREEN1_GAIN 0x02b
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#define MT9M111_BLUE_GAIN 0x02c
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#define MT9M111_RED_GAIN 0x02d
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#define MT9M111_GREEN2_GAIN 0x02e
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#define MT9M111_GLOBAL_GAIN 0x02f
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#define MT9M111_CONTEXT_CONTROL 0x0c8
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#define MT9M111_PAGE_MAP 0x0f0
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#define MT9M111_BYTE_WISE_ADDR 0x0f1
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#define MT9M111_RESET_SYNC_CHANGES (1 << 15)
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#define MT9M111_RESET_RESTART_BAD_FRAME (1 << 9)
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#define MT9M111_RESET_SHOW_BAD_FRAMES (1 << 8)
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#define MT9M111_RESET_RESET_SOC (1 << 5)
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#define MT9M111_RESET_OUTPUT_DISABLE (1 << 4)
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#define MT9M111_RESET_CHIP_ENABLE (1 << 3)
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#define MT9M111_RESET_ANALOG_STANDBY (1 << 2)
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#define MT9M111_RESET_RESTART_FRAME (1 << 1)
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#define MT9M111_RESET_RESET_MODE (1 << 0)
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#define MT9M111_RMB_MIRROR_COLS (1 << 1)
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#define MT9M111_RMB_MIRROR_ROWS (1 << 0)
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#define MT9M111_CTXT_CTRL_RESTART (1 << 15)
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#define MT9M111_CTXT_CTRL_DEFECTCOR_B (1 << 12)
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#define MT9M111_CTXT_CTRL_RESIZE_B (1 << 10)
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#define MT9M111_CTXT_CTRL_CTRL2_B (1 << 9)
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#define MT9M111_CTXT_CTRL_GAMMA_B (1 << 8)
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#define MT9M111_CTXT_CTRL_XENON_EN (1 << 7)
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#define MT9M111_CTXT_CTRL_READ_MODE_B (1 << 3)
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#define MT9M111_CTXT_CTRL_LED_FLASH_EN (1 << 2)
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#define MT9M111_CTXT_CTRL_VBLANK_SEL_B (1 << 1)
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#define MT9M111_CTXT_CTRL_HBLANK_SEL_B (1 << 0)
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/*
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* Colorpipe register addresses (0x100..0x1ff)
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*/
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#define MT9M111_OPER_MODE_CTRL 0x106
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#define MT9M111_OUTPUT_FORMAT_CTRL 0x108
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#define MT9M111_REDUCER_XZOOM_B 0x1a0
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#define MT9M111_REDUCER_XSIZE_B 0x1a1
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#define MT9M111_REDUCER_YZOOM_B 0x1a3
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#define MT9M111_REDUCER_YSIZE_B 0x1a4
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#define MT9M111_REDUCER_XZOOM_A 0x1a6
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#define MT9M111_REDUCER_XSIZE_A 0x1a7
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#define MT9M111_REDUCER_YZOOM_A 0x1a9
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#define MT9M111_REDUCER_YSIZE_A 0x1aa
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#define MT9M111_OUTPUT_FORMAT_CTRL2_A 0x13a
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#define MT9M111_OUTPUT_FORMAT_CTRL2_B 0x19b
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#define MT9M111_OPMODE_AUTOEXPO_EN (1 << 14)
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#define MT9M111_OPMODE_AUTOWHITEBAL_EN (1 << 1)
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#define MT9M111_OUTFMT_PROCESSED_BAYER (1 << 14)
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#define MT9M111_OUTFMT_BYPASS_IFP (1 << 10)
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#define MT9M111_OUTFMT_INV_PIX_CLOCK (1 << 9)
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#define MT9M111_OUTFMT_RGB (1 << 8)
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#define MT9M111_OUTFMT_RGB565 (0 << 6)
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#define MT9M111_OUTFMT_RGB555 (1 << 6)
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#define MT9M111_OUTFMT_RGB444x (2 << 6)
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#define MT9M111_OUTFMT_RGBx444 (3 << 6)
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#define MT9M111_OUTFMT_TST_RAMP_OFF (0 << 4)
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#define MT9M111_OUTFMT_TST_RAMP_COL (1 << 4)
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#define MT9M111_OUTFMT_TST_RAMP_ROW (2 << 4)
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#define MT9M111_OUTFMT_TST_RAMP_FRAME (3 << 4)
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#define MT9M111_OUTFMT_SHIFT_3_UP (1 << 3)
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#define MT9M111_OUTFMT_AVG_CHROMA (1 << 2)
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#define MT9M111_OUTFMT_SWAP_YCbCr_C_Y (1 << 1)
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#define MT9M111_OUTFMT_SWAP_RGB_EVEN (1 << 1)
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#define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr (1 << 0)
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/*
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* Camera control register addresses (0x200..0x2ff not implemented)
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*/
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#define reg_read(reg) mt9m111_reg_read(client, MT9M111_##reg)
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#define reg_write(reg, val) mt9m111_reg_write(client, MT9M111_##reg, (val))
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#define reg_set(reg, val) mt9m111_reg_set(client, MT9M111_##reg, (val))
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#define reg_clear(reg, val) mt9m111_reg_clear(client, MT9M111_##reg, (val))
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#define MT9M111_MIN_DARK_ROWS 8
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#define MT9M111_MIN_DARK_COLS 26
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#define MT9M111_MAX_HEIGHT 1024
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#define MT9M111_MAX_WIDTH 1280
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/* MT9M111 has only one fixed colorspace per pixelcode */
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struct mt9m111_datafmt {
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enum v4l2_mbus_pixelcode code;
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enum v4l2_colorspace colorspace;
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};
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/* Find a data format by a pixel code in an array */
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static const struct mt9m111_datafmt *mt9m111_find_datafmt(
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enum v4l2_mbus_pixelcode code, const struct mt9m111_datafmt *fmt,
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int n)
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{
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int i;
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for (i = 0; i < n; i++)
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if (fmt[i].code == code)
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return fmt + i;
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return NULL;
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}
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static const struct mt9m111_datafmt mt9m111_colour_fmts[] = {
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{V4L2_MBUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_JPEG},
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{V4L2_MBUS_FMT_YVYU8_2X8, V4L2_COLORSPACE_JPEG},
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{V4L2_MBUS_FMT_UYVY8_2X8, V4L2_COLORSPACE_JPEG},
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{V4L2_MBUS_FMT_VYUY8_2X8, V4L2_COLORSPACE_JPEG},
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{V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB},
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{V4L2_MBUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB},
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{V4L2_MBUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB},
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{V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB},
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};
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enum mt9m111_context {
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HIGHPOWER = 0,
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LOWPOWER,
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};
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struct mt9m111 {
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struct v4l2_subdev subdev;
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int model; /* V4L2_IDENT_MT9M111 or V4L2_IDENT_MT9M112 code
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* from v4l2-chip-ident.h */
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enum mt9m111_context context;
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struct v4l2_rect rect;
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const struct mt9m111_datafmt *fmt;
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unsigned int gain;
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unsigned char autoexposure;
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unsigned char datawidth;
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unsigned int powered:1;
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unsigned int hflip:1;
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unsigned int vflip:1;
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unsigned int swap_rgb_even_odd:1;
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unsigned int swap_rgb_red_blue:1;
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unsigned int swap_yuv_y_chromas:1;
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unsigned int swap_yuv_cb_cr:1;
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unsigned int autowhitebalance:1;
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};
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static struct mt9m111 *to_mt9m111(const struct i2c_client *client)
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{
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return container_of(i2c_get_clientdata(client), struct mt9m111, subdev);
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}
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static int reg_page_map_set(struct i2c_client *client, const u16 reg)
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{
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int ret;
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u16 page;
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static int lastpage = -1; /* PageMap cache value */
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page = (reg >> 8);
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if (page == lastpage)
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return 0;
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if (page > 2)
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return -EINVAL;
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ret = i2c_smbus_write_word_data(client, MT9M111_PAGE_MAP, swab16(page));
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if (!ret)
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lastpage = page;
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return ret;
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}
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static int mt9m111_reg_read(struct i2c_client *client, const u16 reg)
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{
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int ret;
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ret = reg_page_map_set(client, reg);
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if (!ret)
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ret = swab16(i2c_smbus_read_word_data(client, reg & 0xff));
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dev_dbg(&client->dev, "read reg.%03x -> %04x\n", reg, ret);
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return ret;
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}
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static int mt9m111_reg_write(struct i2c_client *client, const u16 reg,
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const u16 data)
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{
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int ret;
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ret = reg_page_map_set(client, reg);
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if (!ret)
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ret = i2c_smbus_write_word_data(client, reg & 0xff,
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swab16(data));
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dev_dbg(&client->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret);
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return ret;
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}
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static int mt9m111_reg_set(struct i2c_client *client, const u16 reg,
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const u16 data)
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{
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int ret;
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ret = mt9m111_reg_read(client, reg);
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if (ret >= 0)
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ret = mt9m111_reg_write(client, reg, ret | data);
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return ret;
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}
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static int mt9m111_reg_clear(struct i2c_client *client, const u16 reg,
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const u16 data)
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{
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int ret;
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ret = mt9m111_reg_read(client, reg);
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return mt9m111_reg_write(client, reg, ret & ~data);
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}
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static int mt9m111_set_context(struct i2c_client *client,
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enum mt9m111_context ctxt)
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{
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int valB = MT9M111_CTXT_CTRL_RESTART | MT9M111_CTXT_CTRL_DEFECTCOR_B
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| MT9M111_CTXT_CTRL_RESIZE_B | MT9M111_CTXT_CTRL_CTRL2_B
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| MT9M111_CTXT_CTRL_GAMMA_B | MT9M111_CTXT_CTRL_READ_MODE_B
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| MT9M111_CTXT_CTRL_VBLANK_SEL_B
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| MT9M111_CTXT_CTRL_HBLANK_SEL_B;
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int valA = MT9M111_CTXT_CTRL_RESTART;
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if (ctxt == HIGHPOWER)
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return reg_write(CONTEXT_CONTROL, valB);
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else
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return reg_write(CONTEXT_CONTROL, valA);
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}
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static int mt9m111_setup_rect(struct i2c_client *client,
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struct v4l2_rect *rect)
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{
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struct mt9m111 *mt9m111 = to_mt9m111(client);
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int ret, is_raw_format;
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int width = rect->width;
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int height = rect->height;
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if (mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR8_1X8 ||
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mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE)
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is_raw_format = 1;
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else
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is_raw_format = 0;
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ret = reg_write(COLUMN_START, rect->left);
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if (!ret)
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ret = reg_write(ROW_START, rect->top);
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if (is_raw_format) {
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if (!ret)
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ret = reg_write(WINDOW_WIDTH, width);
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if (!ret)
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ret = reg_write(WINDOW_HEIGHT, height);
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} else {
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if (!ret)
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ret = reg_write(REDUCER_XZOOM_B, MT9M111_MAX_WIDTH);
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if (!ret)
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ret = reg_write(REDUCER_YZOOM_B, MT9M111_MAX_HEIGHT);
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if (!ret)
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ret = reg_write(REDUCER_XSIZE_B, width);
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if (!ret)
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ret = reg_write(REDUCER_YSIZE_B, height);
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if (!ret)
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ret = reg_write(REDUCER_XZOOM_A, MT9M111_MAX_WIDTH);
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if (!ret)
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ret = reg_write(REDUCER_YZOOM_A, MT9M111_MAX_HEIGHT);
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if (!ret)
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ret = reg_write(REDUCER_XSIZE_A, width);
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if (!ret)
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ret = reg_write(REDUCER_YSIZE_A, height);
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}
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return ret;
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}
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static int mt9m111_setup_pixfmt(struct i2c_client *client, u16 outfmt)
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{
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int ret;
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ret = reg_write(OUTPUT_FORMAT_CTRL2_A, outfmt);
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if (!ret)
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ret = reg_write(OUTPUT_FORMAT_CTRL2_B, outfmt);
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return ret;
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}
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static int mt9m111_setfmt_bayer8(struct i2c_client *client)
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{
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return mt9m111_setup_pixfmt(client, MT9M111_OUTFMT_PROCESSED_BAYER |
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MT9M111_OUTFMT_RGB);
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}
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static int mt9m111_setfmt_bayer10(struct i2c_client *client)
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{
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return mt9m111_setup_pixfmt(client, MT9M111_OUTFMT_BYPASS_IFP);
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}
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static int mt9m111_setfmt_rgb565(struct i2c_client *client)
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{
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struct mt9m111 *mt9m111 = to_mt9m111(client);
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int val = 0;
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if (mt9m111->swap_rgb_red_blue)
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val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr;
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if (mt9m111->swap_rgb_even_odd)
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val |= MT9M111_OUTFMT_SWAP_RGB_EVEN;
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val |= MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565;
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return mt9m111_setup_pixfmt(client, val);
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}
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static int mt9m111_setfmt_rgb555(struct i2c_client *client)
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{
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struct mt9m111 *mt9m111 = to_mt9m111(client);
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int val = 0;
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if (mt9m111->swap_rgb_red_blue)
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val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr;
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if (mt9m111->swap_rgb_even_odd)
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val |= MT9M111_OUTFMT_SWAP_RGB_EVEN;
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val |= MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555;
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return mt9m111_setup_pixfmt(client, val);
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}
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static int mt9m111_setfmt_yuv(struct i2c_client *client)
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{
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struct mt9m111 *mt9m111 = to_mt9m111(client);
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int val = 0;
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if (mt9m111->swap_yuv_cb_cr)
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val |= MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr;
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if (mt9m111->swap_yuv_y_chromas)
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val |= MT9M111_OUTFMT_SWAP_YCbCr_C_Y;
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return mt9m111_setup_pixfmt(client, val);
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}
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static int mt9m111_enable(struct i2c_client *client)
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{
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struct mt9m111 *mt9m111 = to_mt9m111(client);
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int ret;
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ret = reg_set(RESET, MT9M111_RESET_CHIP_ENABLE);
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if (!ret)
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mt9m111->powered = 1;
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return ret;
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}
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static int mt9m111_reset(struct i2c_client *client)
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{
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int ret;
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ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
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if (!ret)
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ret = reg_set(RESET, MT9M111_RESET_RESET_SOC);
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if (!ret)
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ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE
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| MT9M111_RESET_RESET_SOC);
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return ret;
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}
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static unsigned long mt9m111_query_bus_param(struct soc_camera_device *icd)
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{
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struct soc_camera_link *icl = to_soc_camera_link(icd);
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unsigned long flags = SOCAM_MASTER | SOCAM_PCLK_SAMPLE_RISING |
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SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH |
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SOCAM_DATA_ACTIVE_HIGH | SOCAM_DATAWIDTH_8;
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return soc_camera_apply_sensor_flags(icl, flags);
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}
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static int mt9m111_set_bus_param(struct soc_camera_device *icd, unsigned long f)
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{
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return 0;
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}
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static int mt9m111_make_rect(struct i2c_client *client,
|
|
struct v4l2_rect *rect)
|
|
{
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
|
|
if (mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR8_1X8 ||
|
|
mt9m111->fmt->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE) {
|
|
/* Bayer format - even size lengths */
|
|
rect->width = ALIGN(rect->width, 2);
|
|
rect->height = ALIGN(rect->height, 2);
|
|
/* Let the user play with the starting pixel */
|
|
}
|
|
|
|
/* FIXME: the datasheet doesn't specify minimum sizes */
|
|
soc_camera_limit_side(&rect->left, &rect->width,
|
|
MT9M111_MIN_DARK_COLS, 2, MT9M111_MAX_WIDTH);
|
|
|
|
soc_camera_limit_side(&rect->top, &rect->height,
|
|
MT9M111_MIN_DARK_ROWS, 2, MT9M111_MAX_HEIGHT);
|
|
|
|
return mt9m111_setup_rect(client, rect);
|
|
}
|
|
|
|
static int mt9m111_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
|
|
{
|
|
struct v4l2_rect rect = a->c;
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
int ret;
|
|
|
|
dev_dbg(&client->dev, "%s left=%d, top=%d, width=%d, height=%d\n",
|
|
__func__, rect.left, rect.top, rect.width, rect.height);
|
|
|
|
if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
ret = mt9m111_make_rect(client, &rect);
|
|
if (!ret)
|
|
mt9m111->rect = rect;
|
|
return ret;
|
|
}
|
|
|
|
static int mt9m111_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
|
|
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_g_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *mf)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
|
|
mf->width = mt9m111->rect.width;
|
|
mf->height = mt9m111->rect.height;
|
|
mf->code = mt9m111->fmt->code;
|
|
mf->colorspace = mt9m111->fmt->colorspace;
|
|
mf->field = V4L2_FIELD_NONE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt9m111_set_pixfmt(struct i2c_client *client,
|
|
enum v4l2_mbus_pixelcode code)
|
|
{
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
int ret;
|
|
|
|
switch (code) {
|
|
case V4L2_MBUS_FMT_SBGGR8_1X8:
|
|
ret = mt9m111_setfmt_bayer8(client);
|
|
break;
|
|
case V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE:
|
|
ret = mt9m111_setfmt_bayer10(client);
|
|
break;
|
|
case V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE:
|
|
ret = mt9m111_setfmt_rgb555(client);
|
|
break;
|
|
case V4L2_MBUS_FMT_RGB565_2X8_LE:
|
|
ret = mt9m111_setfmt_rgb565(client);
|
|
break;
|
|
case V4L2_MBUS_FMT_UYVY8_2X8:
|
|
mt9m111->swap_yuv_y_chromas = 0;
|
|
mt9m111->swap_yuv_cb_cr = 0;
|
|
ret = mt9m111_setfmt_yuv(client);
|
|
break;
|
|
case V4L2_MBUS_FMT_VYUY8_2X8:
|
|
mt9m111->swap_yuv_y_chromas = 0;
|
|
mt9m111->swap_yuv_cb_cr = 1;
|
|
ret = mt9m111_setfmt_yuv(client);
|
|
break;
|
|
case V4L2_MBUS_FMT_YUYV8_2X8:
|
|
mt9m111->swap_yuv_y_chromas = 1;
|
|
mt9m111->swap_yuv_cb_cr = 0;
|
|
ret = mt9m111_setfmt_yuv(client);
|
|
break;
|
|
case V4L2_MBUS_FMT_YVYU8_2X8:
|
|
mt9m111->swap_yuv_y_chromas = 1;
|
|
mt9m111->swap_yuv_cb_cr = 1;
|
|
ret = mt9m111_setfmt_yuv(client);
|
|
break;
|
|
default:
|
|
dev_err(&client->dev, "Pixel format not handled : %x\n",
|
|
code);
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9m111_s_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *mf)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
const struct mt9m111_datafmt *fmt;
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
struct v4l2_rect rect = {
|
|
.left = mt9m111->rect.left,
|
|
.top = mt9m111->rect.top,
|
|
.width = mf->width,
|
|
.height = mf->height,
|
|
};
|
|
int ret;
|
|
|
|
fmt = mt9m111_find_datafmt(mf->code, mt9m111_colour_fmts,
|
|
ARRAY_SIZE(mt9m111_colour_fmts));
|
|
if (!fmt)
|
|
return -EINVAL;
|
|
|
|
dev_dbg(&client->dev,
|
|
"%s code=%x left=%d, top=%d, width=%d, height=%d\n", __func__,
|
|
mf->code, rect.left, rect.top, rect.width, rect.height);
|
|
|
|
ret = mt9m111_make_rect(client, &rect);
|
|
if (!ret)
|
|
ret = mt9m111_set_pixfmt(client, mf->code);
|
|
if (!ret) {
|
|
mt9m111->rect = rect;
|
|
mt9m111->fmt = fmt;
|
|
mf->colorspace = fmt->colorspace;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9m111_try_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *mf)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
const struct mt9m111_datafmt *fmt;
|
|
bool bayer = mf->code == V4L2_MBUS_FMT_SBGGR8_1X8 ||
|
|
mf->code == V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE;
|
|
|
|
fmt = mt9m111_find_datafmt(mf->code, mt9m111_colour_fmts,
|
|
ARRAY_SIZE(mt9m111_colour_fmts));
|
|
if (!fmt) {
|
|
fmt = mt9m111->fmt;
|
|
mf->code = fmt->code;
|
|
}
|
|
|
|
/*
|
|
* With Bayer format enforce even side lengths, but let the user play
|
|
* with the starting pixel
|
|
*/
|
|
|
|
if (mf->height > MT9M111_MAX_HEIGHT)
|
|
mf->height = MT9M111_MAX_HEIGHT;
|
|
else if (mf->height < 2)
|
|
mf->height = 2;
|
|
else if (bayer)
|
|
mf->height = ALIGN(mf->height, 2);
|
|
|
|
if (mf->width > MT9M111_MAX_WIDTH)
|
|
mf->width = MT9M111_MAX_WIDTH;
|
|
else if (mf->width < 2)
|
|
mf->width = 2;
|
|
else if (bayer)
|
|
mf->width = ALIGN(mf->width, 2);
|
|
|
|
mf->colorspace = fmt->colorspace;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt9m111_g_chip_ident(struct v4l2_subdev *sd,
|
|
struct v4l2_dbg_chip_ident *id)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
|
|
if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR)
|
|
return -EINVAL;
|
|
|
|
if (id->match.addr != client->addr)
|
|
return -ENODEV;
|
|
|
|
id->ident = mt9m111->model;
|
|
id->revision = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#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->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff)
|
|
return -EINVAL;
|
|
if (reg->match.addr != client->addr)
|
|
return -ENODEV;
|
|
|
|
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,
|
|
struct v4l2_dbg_register *reg)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
|
|
if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0x2ff)
|
|
return -EINVAL;
|
|
|
|
if (reg->match.addr != client->addr)
|
|
return -ENODEV;
|
|
|
|
if (mt9m111_reg_write(client, reg->reg, reg->val) < 0)
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static const struct v4l2_queryctrl mt9m111_controls[] = {
|
|
{
|
|
.id = V4L2_CID_VFLIP,
|
|
.type = V4L2_CTRL_TYPE_BOOLEAN,
|
|
.name = "Flip Verticaly",
|
|
.minimum = 0,
|
|
.maximum = 1,
|
|
.step = 1,
|
|
.default_value = 0,
|
|
}, {
|
|
.id = V4L2_CID_HFLIP,
|
|
.type = V4L2_CTRL_TYPE_BOOLEAN,
|
|
.name = "Flip Horizontaly",
|
|
.minimum = 0,
|
|
.maximum = 1,
|
|
.step = 1,
|
|
.default_value = 0,
|
|
}, { /* gain = 1/32*val (=>gain=1 if val==32) */
|
|
.id = V4L2_CID_GAIN,
|
|
.type = V4L2_CTRL_TYPE_INTEGER,
|
|
.name = "Gain",
|
|
.minimum = 0,
|
|
.maximum = 63 * 2 * 2,
|
|
.step = 1,
|
|
.default_value = 32,
|
|
.flags = V4L2_CTRL_FLAG_SLIDER,
|
|
}, {
|
|
.id = V4L2_CID_EXPOSURE_AUTO,
|
|
.type = V4L2_CTRL_TYPE_BOOLEAN,
|
|
.name = "Auto Exposure",
|
|
.minimum = 0,
|
|
.maximum = 1,
|
|
.step = 1,
|
|
.default_value = 1,
|
|
}
|
|
};
|
|
|
|
static int mt9m111_resume(struct soc_camera_device *icd);
|
|
static int mt9m111_suspend(struct soc_camera_device *icd, pm_message_t state);
|
|
|
|
static struct soc_camera_ops mt9m111_ops = {
|
|
.suspend = mt9m111_suspend,
|
|
.resume = mt9m111_resume,
|
|
.query_bus_param = mt9m111_query_bus_param,
|
|
.set_bus_param = mt9m111_set_bus_param,
|
|
.controls = mt9m111_controls,
|
|
.num_controls = ARRAY_SIZE(mt9m111_controls),
|
|
};
|
|
|
|
static int mt9m111_set_flip(struct i2c_client *client, int flip, int mask)
|
|
{
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
int ret;
|
|
|
|
if (mt9m111->context == HIGHPOWER) {
|
|
if (flip)
|
|
ret = reg_set(READ_MODE_B, mask);
|
|
else
|
|
ret = reg_clear(READ_MODE_B, mask);
|
|
} else {
|
|
if (flip)
|
|
ret = reg_set(READ_MODE_A, mask);
|
|
else
|
|
ret = reg_clear(READ_MODE_A, mask);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9m111_get_global_gain(struct i2c_client *client)
|
|
{
|
|
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 i2c_client *client, int gain)
|
|
{
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
u16 val;
|
|
|
|
if (gain > 63 * 2 * 2)
|
|
return -EINVAL;
|
|
|
|
mt9m111->gain = gain;
|
|
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 i2c_client *client, int on)
|
|
{
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
int ret;
|
|
|
|
if (on)
|
|
ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
|
|
else
|
|
ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
|
|
|
|
if (!ret)
|
|
mt9m111->autoexposure = on;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9m111_set_autowhitebalance(struct i2c_client *client, int on)
|
|
{
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
int ret;
|
|
|
|
if (on)
|
|
ret = reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
|
|
else
|
|
ret = reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
|
|
|
|
if (!ret)
|
|
mt9m111->autowhitebalance = on;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9m111_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
int data;
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_VFLIP:
|
|
if (mt9m111->context == HIGHPOWER)
|
|
data = reg_read(READ_MODE_B);
|
|
else
|
|
data = reg_read(READ_MODE_A);
|
|
|
|
if (data < 0)
|
|
return -EIO;
|
|
ctrl->value = !!(data & MT9M111_RMB_MIRROR_ROWS);
|
|
break;
|
|
case V4L2_CID_HFLIP:
|
|
if (mt9m111->context == HIGHPOWER)
|
|
data = reg_read(READ_MODE_B);
|
|
else
|
|
data = reg_read(READ_MODE_A);
|
|
|
|
if (data < 0)
|
|
return -EIO;
|
|
ctrl->value = !!(data & MT9M111_RMB_MIRROR_COLS);
|
|
break;
|
|
case V4L2_CID_GAIN:
|
|
data = mt9m111_get_global_gain(client);
|
|
if (data < 0)
|
|
return data;
|
|
ctrl->value = data;
|
|
break;
|
|
case V4L2_CID_EXPOSURE_AUTO:
|
|
ctrl->value = mt9m111->autoexposure;
|
|
break;
|
|
case V4L2_CID_AUTO_WHITE_BALANCE:
|
|
ctrl->value = mt9m111->autowhitebalance;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mt9m111_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
const struct v4l2_queryctrl *qctrl;
|
|
int ret;
|
|
|
|
qctrl = soc_camera_find_qctrl(&mt9m111_ops, ctrl->id);
|
|
if (!qctrl)
|
|
return -EINVAL;
|
|
|
|
switch (ctrl->id) {
|
|
case V4L2_CID_VFLIP:
|
|
mt9m111->vflip = ctrl->value;
|
|
ret = mt9m111_set_flip(client, ctrl->value,
|
|
MT9M111_RMB_MIRROR_ROWS);
|
|
break;
|
|
case V4L2_CID_HFLIP:
|
|
mt9m111->hflip = ctrl->value;
|
|
ret = mt9m111_set_flip(client, ctrl->value,
|
|
MT9M111_RMB_MIRROR_COLS);
|
|
break;
|
|
case V4L2_CID_GAIN:
|
|
ret = mt9m111_set_global_gain(client, ctrl->value);
|
|
break;
|
|
case V4L2_CID_EXPOSURE_AUTO:
|
|
ret = mt9m111_set_autoexposure(client, ctrl->value);
|
|
break;
|
|
case V4L2_CID_AUTO_WHITE_BALANCE:
|
|
ret = mt9m111_set_autowhitebalance(client, ctrl->value);
|
|
break;
|
|
default:
|
|
ret = -EINVAL;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9m111_suspend(struct soc_camera_device *icd, pm_message_t state)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
|
|
mt9m111->gain = mt9m111_get_global_gain(client);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt9m111_restore_state(struct i2c_client *client)
|
|
{
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
|
|
mt9m111_set_context(client, mt9m111->context);
|
|
mt9m111_set_pixfmt(client, mt9m111->fmt->code);
|
|
mt9m111_setup_rect(client, &mt9m111->rect);
|
|
mt9m111_set_flip(client, mt9m111->hflip, MT9M111_RMB_MIRROR_COLS);
|
|
mt9m111_set_flip(client, mt9m111->vflip, MT9M111_RMB_MIRROR_ROWS);
|
|
mt9m111_set_global_gain(client, mt9m111->gain);
|
|
mt9m111_set_autoexposure(client, mt9m111->autoexposure);
|
|
mt9m111_set_autowhitebalance(client, mt9m111->autowhitebalance);
|
|
return 0;
|
|
}
|
|
|
|
static int mt9m111_resume(struct soc_camera_device *icd)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
int ret = 0;
|
|
|
|
if (mt9m111->powered) {
|
|
ret = mt9m111_enable(client);
|
|
if (!ret)
|
|
ret = mt9m111_reset(client);
|
|
if (!ret)
|
|
ret = mt9m111_restore_state(client);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int mt9m111_init(struct i2c_client *client)
|
|
{
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
int ret;
|
|
|
|
mt9m111->context = HIGHPOWER;
|
|
ret = mt9m111_enable(client);
|
|
if (!ret)
|
|
ret = mt9m111_reset(client);
|
|
if (!ret)
|
|
ret = mt9m111_set_context(client, mt9m111->context);
|
|
if (!ret)
|
|
ret = mt9m111_set_autoexposure(client, mt9m111->autoexposure);
|
|
if (ret)
|
|
dev_err(&client->dev, "mt9m111 init failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* 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 soc_camera_device *icd,
|
|
struct i2c_client *client)
|
|
{
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
s32 data;
|
|
int ret;
|
|
|
|
/*
|
|
* We must have a parent by now. And it cannot be a wrong one.
|
|
* So this entire test is completely redundant.
|
|
*/
|
|
if (!icd->dev.parent ||
|
|
to_soc_camera_host(icd->dev.parent)->nr != icd->iface)
|
|
return -ENODEV;
|
|
|
|
mt9m111->autoexposure = 1;
|
|
mt9m111->autowhitebalance = 1;
|
|
|
|
mt9m111->swap_rgb_even_odd = 1;
|
|
mt9m111->swap_rgb_red_blue = 1;
|
|
|
|
data = reg_read(CHIP_VERSION);
|
|
|
|
switch (data) {
|
|
case 0x143a: /* MT9M111 or MT9M131 */
|
|
mt9m111->model = V4L2_IDENT_MT9M111;
|
|
dev_info(&client->dev,
|
|
"Detected a MT9M111/MT9M131 chip ID %x\n", data);
|
|
break;
|
|
case 0x148c: /* MT9M112 */
|
|
mt9m111->model = V4L2_IDENT_MT9M112;
|
|
dev_info(&client->dev, "Detected a MT9M112 chip ID %x\n", data);
|
|
break;
|
|
default:
|
|
ret = -ENODEV;
|
|
dev_err(&client->dev,
|
|
"No MT9M111/MT9M112/MT9M131 chip detected register read %x\n",
|
|
data);
|
|
goto ei2c;
|
|
}
|
|
|
|
ret = mt9m111_init(client);
|
|
|
|
ei2c:
|
|
return ret;
|
|
}
|
|
|
|
static struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = {
|
|
.g_ctrl = mt9m111_g_ctrl,
|
|
.s_ctrl = mt9m111_s_ctrl,
|
|
.g_chip_ident = mt9m111_g_chip_ident,
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
.g_register = mt9m111_g_register,
|
|
.s_register = mt9m111_s_register,
|
|
#endif
|
|
};
|
|
|
|
static int mt9m111_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
|
|
enum v4l2_mbus_pixelcode *code)
|
|
{
|
|
if (index >= ARRAY_SIZE(mt9m111_colour_fmts))
|
|
return -EINVAL;
|
|
|
|
*code = mt9m111_colour_fmts[index].code;
|
|
return 0;
|
|
}
|
|
|
|
static struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = {
|
|
.s_mbus_fmt = mt9m111_s_fmt,
|
|
.g_mbus_fmt = mt9m111_g_fmt,
|
|
.try_mbus_fmt = mt9m111_try_fmt,
|
|
.s_crop = mt9m111_s_crop,
|
|
.g_crop = mt9m111_g_crop,
|
|
.cropcap = mt9m111_cropcap,
|
|
.enum_mbus_fmt = mt9m111_enum_fmt,
|
|
};
|
|
|
|
static struct v4l2_subdev_ops mt9m111_subdev_ops = {
|
|
.core = &mt9m111_subdev_core_ops,
|
|
.video = &mt9m111_subdev_video_ops,
|
|
};
|
|
|
|
static int mt9m111_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *did)
|
|
{
|
|
struct mt9m111 *mt9m111;
|
|
struct soc_camera_device *icd = client->dev.platform_data;
|
|
struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
|
|
struct soc_camera_link *icl;
|
|
int ret;
|
|
|
|
if (!icd) {
|
|
dev_err(&client->dev, "mt9m111: soc-camera data missing!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
icl = to_soc_camera_link(icd);
|
|
if (!icl) {
|
|
dev_err(&client->dev, "mt9m111: 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;
|
|
}
|
|
|
|
mt9m111 = kzalloc(sizeof(struct mt9m111), GFP_KERNEL);
|
|
if (!mt9m111)
|
|
return -ENOMEM;
|
|
|
|
v4l2_i2c_subdev_init(&mt9m111->subdev, client, &mt9m111_subdev_ops);
|
|
|
|
/* Second stage probe - when a capture adapter is there */
|
|
icd->ops = &mt9m111_ops;
|
|
|
|
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];
|
|
|
|
ret = mt9m111_video_probe(icd, client);
|
|
if (ret) {
|
|
icd->ops = NULL;
|
|
kfree(mt9m111);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9m111_remove(struct i2c_client *client)
|
|
{
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
struct soc_camera_device *icd = client->dev.platform_data;
|
|
|
|
icd->ops = NULL;
|
|
kfree(mt9m111);
|
|
|
|
return 0;
|
|
}
|
|
|
|
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",
|
|
},
|
|
.probe = mt9m111_probe,
|
|
.remove = mt9m111_remove,
|
|
.id_table = mt9m111_id,
|
|
};
|
|
|
|
static int __init mt9m111_mod_init(void)
|
|
{
|
|
return i2c_add_driver(&mt9m111_i2c_driver);
|
|
}
|
|
|
|
static void __exit mt9m111_mod_exit(void)
|
|
{
|
|
i2c_del_driver(&mt9m111_i2c_driver);
|
|
}
|
|
|
|
module_init(mt9m111_mod_init);
|
|
module_exit(mt9m111_mod_exit);
|
|
|
|
MODULE_DESCRIPTION("Micron/Aptina MT9M111/MT9M112/MT9M131 Camera driver");
|
|
MODULE_AUTHOR("Robert Jarzmik");
|
|
MODULE_LICENSE("GPL");
|