![Peter Meerwald](/assets/img/avatar_default.png)
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
1015 lines
28 KiB
C
1015 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 <linux/v4l2-mediabus.h>
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#include <linux/module.h>
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#include <media/soc_camera.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-chip-ident.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_RM_FULL_POWER_RD (0 << 10)
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#define MT9M111_RM_LOW_POWER_RD (1 << 10)
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#define MT9M111_RM_COL_SKIP_4X (1 << 5)
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#define MT9M111_RM_ROW_SKIP_4X (1 << 4)
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#define MT9M111_RM_COL_SKIP_2X (1 << 3)
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#define MT9M111_RM_ROW_SKIP_2X (1 << 2)
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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_FLIP_BAYER_COL (1 << 9)
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#define MT9M111_OUTFMT_FLIP_BAYER_ROW (1 << 8)
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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_RGB_EVEN (1 << 1)
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#define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B (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 reg_mask(reg, val, mask) mt9m111_reg_mask(client, MT9M111_##reg, \
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(val), (mask))
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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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struct mt9m111_context {
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u16 read_mode;
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u16 blanking_h;
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u16 blanking_v;
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u16 reducer_xzoom;
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u16 reducer_yzoom;
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u16 reducer_xsize;
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u16 reducer_ysize;
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u16 output_fmt_ctrl2;
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u16 control;
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};
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static struct mt9m111_context context_a = {
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.read_mode = MT9M111_READ_MODE_A,
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.blanking_h = MT9M111_HORIZONTAL_BLANKING_A,
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.blanking_v = MT9M111_VERTICAL_BLANKING_A,
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.reducer_xzoom = MT9M111_REDUCER_XZOOM_A,
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.reducer_yzoom = MT9M111_REDUCER_YZOOM_A,
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.reducer_xsize = MT9M111_REDUCER_XSIZE_A,
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.reducer_ysize = MT9M111_REDUCER_YSIZE_A,
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.output_fmt_ctrl2 = MT9M111_OUTPUT_FORMAT_CTRL2_A,
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.control = MT9M111_CTXT_CTRL_RESTART,
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};
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static struct mt9m111_context context_b = {
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.read_mode = MT9M111_READ_MODE_B,
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.blanking_h = MT9M111_HORIZONTAL_BLANKING_B,
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.blanking_v = MT9M111_VERTICAL_BLANKING_B,
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.reducer_xzoom = MT9M111_REDUCER_XZOOM_B,
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.reducer_yzoom = MT9M111_REDUCER_YZOOM_B,
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.reducer_xsize = MT9M111_REDUCER_XSIZE_B,
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.reducer_ysize = MT9M111_REDUCER_YSIZE_B,
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.output_fmt_ctrl2 = MT9M111_OUTPUT_FORMAT_CTRL2_B,
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.control = MT9M111_CTXT_CTRL_RESTART |
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MT9M111_CTXT_CTRL_DEFECTCOR_B | MT9M111_CTXT_CTRL_RESIZE_B |
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MT9M111_CTXT_CTRL_CTRL2_B | MT9M111_CTXT_CTRL_GAMMA_B |
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MT9M111_CTXT_CTRL_READ_MODE_B | MT9M111_CTXT_CTRL_VBLANK_SEL_B |
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MT9M111_CTXT_CTRL_HBLANK_SEL_B,
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};
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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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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_RGB555_2X8_PADHI_BE, V4L2_COLORSPACE_SRGB},
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{V4L2_MBUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB},
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{V4L2_MBUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_SRGB},
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{V4L2_MBUS_FMT_BGR565_2X8_LE, V4L2_COLORSPACE_SRGB},
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{V4L2_MBUS_FMT_BGR565_2X8_BE, 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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struct mt9m111 {
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struct v4l2_subdev subdev;
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struct v4l2_ctrl_handler hdl;
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struct v4l2_ctrl *gain;
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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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struct mt9m111_context *ctx;
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struct v4l2_rect rect; /* cropping rectangle */
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int width; /* output */
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int height; /* sizes */
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struct mutex power_lock; /* lock to protect power_count */
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int power_count;
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const struct mt9m111_datafmt *fmt;
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int lastpage; /* PageMap cache value */
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};
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/* Find a data format by a pixel code */
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static const struct mt9m111_datafmt *mt9m111_find_datafmt(struct mt9m111 *mt9m111,
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enum v4l2_mbus_pixelcode code)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(mt9m111_colour_fmts); i++)
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if (mt9m111_colour_fmts[i].code == code)
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return mt9m111_colour_fmts + i;
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return mt9m111->fmt;
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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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struct mt9m111 *mt9m111 = to_mt9m111(client);
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page = (reg >> 8);
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if (page == mt9m111->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_swapped(client, MT9M111_PAGE_MAP, page);
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if (!ret)
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mt9m111->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 = i2c_smbus_read_word_swapped(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_swapped(client, reg & 0xff, 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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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_mask(struct i2c_client *client, const u16 reg,
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const u16 data, const u16 mask)
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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 & ~mask) | data);
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return ret;
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}
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static int mt9m111_set_context(struct mt9m111 *mt9m111,
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struct mt9m111_context *ctx)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
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return reg_write(CONTEXT_CONTROL, ctx->control);
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}
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static int mt9m111_setup_rect_ctx(struct mt9m111 *mt9m111,
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struct mt9m111_context *ctx, struct v4l2_rect *rect,
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unsigned int width, unsigned int height)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
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int ret = mt9m111_reg_write(client, ctx->reducer_xzoom, rect->width);
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if (!ret)
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ret = mt9m111_reg_write(client, ctx->reducer_yzoom, rect->height);
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if (!ret)
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ret = mt9m111_reg_write(client, ctx->reducer_xsize, width);
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if (!ret)
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ret = mt9m111_reg_write(client, ctx->reducer_ysize, height);
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return ret;
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}
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static int mt9m111_setup_geometry(struct mt9m111 *mt9m111, struct v4l2_rect *rect,
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int width, int height, enum v4l2_mbus_pixelcode code)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
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int ret;
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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 (!ret)
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ret = reg_write(WINDOW_WIDTH, rect->width);
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if (!ret)
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ret = reg_write(WINDOW_HEIGHT, rect->height);
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if (code != V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE) {
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/* IFP in use, down-scaling possible */
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if (!ret)
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ret = mt9m111_setup_rect_ctx(mt9m111, &context_b,
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rect, width, height);
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if (!ret)
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ret = mt9m111_setup_rect_ctx(mt9m111, &context_a,
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rect, width, height);
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}
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dev_dbg(&client->dev, "%s(%x): %ux%u@%u:%u -> %ux%u = %d\n",
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__func__, code, rect->width, rect->height, rect->left, rect->top,
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width, height, ret);
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return ret;
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}
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static int mt9m111_enable(struct mt9m111 *mt9m111)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
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return reg_write(RESET, MT9M111_RESET_CHIP_ENABLE);
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}
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static int mt9m111_reset(struct mt9m111 *mt9m111)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
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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 int mt9m111_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
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{
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struct v4l2_rect rect = a->c;
|
|
struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
|
|
int width, height;
|
|
int ret;
|
|
|
|
if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
|
return -EINVAL;
|
|
|
|
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);
|
|
|
|
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_g_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *mf)
|
|
{
|
|
struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
|
|
|
|
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,
|
|
enum v4l2_mbus_pixelcode 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 V4L2_MBUS_FMT_SBGGR8_1X8:
|
|
data_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER |
|
|
MT9M111_OUTFMT_RGB;
|
|
break;
|
|
case V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE:
|
|
data_outfmt2 = MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB;
|
|
break;
|
|
case V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE:
|
|
data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555 |
|
|
MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
|
|
break;
|
|
case V4L2_MBUS_FMT_RGB555_2X8_PADHI_BE:
|
|
data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555;
|
|
break;
|
|
case V4L2_MBUS_FMT_RGB565_2X8_LE:
|
|
data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
|
|
MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
|
|
break;
|
|
case V4L2_MBUS_FMT_RGB565_2X8_BE:
|
|
data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565;
|
|
break;
|
|
case V4L2_MBUS_FMT_BGR565_2X8_BE:
|
|
data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
|
|
MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
|
|
break;
|
|
case V4L2_MBUS_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 V4L2_MBUS_FMT_UYVY8_2X8:
|
|
data_outfmt2 = 0;
|
|
break;
|
|
case V4L2_MBUS_FMT_VYUY8_2X8:
|
|
data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
|
|
break;
|
|
case V4L2_MBUS_FMT_YUYV8_2X8:
|
|
data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
|
|
break;
|
|
case V4L2_MBUS_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_try_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *mf)
|
|
{
|
|
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;
|
|
|
|
fmt = mt9m111_find_datafmt(mt9m111, mf->code);
|
|
|
|
bayer = fmt->code == V4L2_MBUS_FMT_SBGGR8_1X8 ||
|
|
fmt->code == V4L2_MBUS_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 == V4L2_MBUS_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;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt9m111_s_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *mf)
|
|
{
|
|
const struct mt9m111_datafmt *fmt;
|
|
struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
|
|
struct v4l2_rect *rect = &mt9m111->rect;
|
|
int ret;
|
|
|
|
mt9m111_try_fmt(sd, mf);
|
|
fmt = mt9m111_find_datafmt(mt9m111, mf->code);
|
|
/* try_fmt() guarantees fmt != NULL && fmt->code == mf->code */
|
|
|
|
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;
|
|
}
|
|
|
|
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 = container_of(sd, struct mt9m111, subdev);
|
|
|
|
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 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 on)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
|
|
|
|
if (on)
|
|
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;
|
|
|
|
/* Default HIGHPOWER context */
|
|
mt9m111->ctx = &context_b;
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
|
|
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:
|
|
dev_err(&client->dev,
|
|
"No MT9M111/MT9M112/MT9M131 chip detected register read %x\n",
|
|
data);
|
|
return -ENODEV;
|
|
}
|
|
|
|
ret = mt9m111_init(mt9m111);
|
|
if (ret)
|
|
return ret;
|
|
return v4l2_ctrl_handler_setup(&mt9m111->hdl);
|
|
}
|
|
|
|
static int mt9m111_s_power(struct v4l2_subdev *sd, int on)
|
|
{
|
|
struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
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_resume(mt9m111);
|
|
if (ret) {
|
|
dev_err(&client->dev,
|
|
"Failed to resume the sensor: %d\n", ret);
|
|
goto out;
|
|
}
|
|
} else {
|
|
mt9m111_suspend(mt9m111);
|
|
}
|
|
}
|
|
|
|
/* Update the power count. */
|
|
mt9m111->power_count += on ? 1 : -1;
|
|
WARN_ON(mt9m111->power_count < 0);
|
|
|
|
out:
|
|
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 = {
|
|
.g_chip_ident = mt9m111_g_chip_ident,
|
|
.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_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 int mt9m111_g_mbus_config(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_config *cfg)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
|
|
|
|
cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING |
|
|
V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
|
|
V4L2_MBUS_DATA_ACTIVE_HIGH;
|
|
cfg->type = V4L2_MBUS_PARALLEL;
|
|
cfg->flags = soc_camera_apply_board_flags(icl, cfg);
|
|
|
|
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,
|
|
.g_mbus_config = mt9m111_g_mbus_config,
|
|
};
|
|
|
|
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 i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
|
|
struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
|
|
int ret;
|
|
|
|
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);
|
|
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) {
|
|
int err = mt9m111->hdl.error;
|
|
|
|
kfree(mt9m111);
|
|
return err;
|
|
}
|
|
|
|
/* 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) {
|
|
v4l2_ctrl_handler_free(&mt9m111->hdl);
|
|
kfree(mt9m111);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9m111_remove(struct i2c_client *client)
|
|
{
|
|
struct mt9m111 *mt9m111 = to_mt9m111(client);
|
|
|
|
v4l2_device_unregister_subdev(&mt9m111->subdev);
|
|
v4l2_ctrl_handler_free(&mt9m111->hdl);
|
|
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,
|
|
};
|
|
|
|
module_i2c_driver(mt9m111_i2c_driver);
|
|
|
|
MODULE_DESCRIPTION("Micron/Aptina MT9M111/MT9M112/MT9M131 Camera driver");
|
|
MODULE_AUTHOR("Robert Jarzmik");
|
|
MODULE_LICENSE("GPL");
|