From 4fba418175d79ccbaade488ecc269903c098879d Mon Sep 17 00:00:00 2001 From: Soren Brinkmann Date: Fri, 6 Oct 2017 09:23:45 -0700 Subject: [PATCH] Revert "media: imx274 V4l2 driver for Sony imx274 CMOS sensor" This reverts commit aff4debf2f9fb9d9d140730cdbd5569691c3dc87. This early version of the patch is superseded by the version accepted upstream. Signed-off-by: Soren Brinkmann Signed-off-by: Michal Simek --- drivers/media/i2c/Kconfig | 7 - drivers/media/i2c/Makefile | 1 - drivers/media/i2c/imx274.c | 1843 ------------------------------------ 3 files changed, 1851 deletions(-) delete mode 100644 drivers/media/i2c/imx274.c diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 3f2c3c7fb7c0..2669b4bad910 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -520,13 +520,6 @@ config VIDEO_APTINA_PLL config VIDEO_SMIAPP_PLL tristate -config VIDEO_IMX274 - tristate "Sony IMX274 sensor support" - depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API - ---help--- - This is a V4L2 sensor-level driver for the Sony IMX274 - CMOS image sensor. - config VIDEO_OV2659 tristate "OmniVision OV2659 sensor support" depends on VIDEO_V4L2 && I2C diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index 5e942e043895..92773b2e6225 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -82,4 +82,3 @@ obj-$(CONFIG_VIDEO_IR_I2C) += ir-kbd-i2c.o obj-$(CONFIG_VIDEO_ML86V7667) += ml86v7667.o obj-$(CONFIG_VIDEO_OV2659) += ov2659.o obj-$(CONFIG_VIDEO_TC358743) += tc358743.o -obj-$(CONFIG_VIDEO_IMX274) += imx274.o diff --git a/drivers/media/i2c/imx274.c b/drivers/media/i2c/imx274.c deleted file mode 100644 index 99e0e5c6f356..000000000000 --- a/drivers/media/i2c/imx274.c +++ /dev/null @@ -1,1843 +0,0 @@ -/* - * imx274.c - IMX274 CMOS Image Sensor driver - * - * Copyright (C) 2017, Leopard Imaging, Inc. - * - * Leon Luo - * Edwin Zou - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static int debug; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "Debug level (0-2)"); - -/* - * See "SHR, SVR Setting" in datasheet - */ -#define IMX274_DEFAULT_FRAME_LENGTH (4550) -#define IMX274_MAX_FRAME_LENGTH (0x000fffff) - -/* - * See "Frame Rate Adjustment" in datasheet - */ -#define IMX274_PIXCLK_CONST1 (72000000) -#define IMX274_PIXCLK_CONST2 (1000000) - -/* - * The input gain is shifted by IMX274_GAIN_SHIFT to get - * decimal number. The real gain is - * (float)input_gain_value / (1 << IMX274_GAIN_SHIFT) - */ -#define IMX274_GAIN_SHIFT (8) -#define IMX274_GAIN_SHIFT_MASK ((1 << IMX274_GAIN_SHIFT) - 1) - -/* - * See "Analog Gain" and "Digital Gain" in datasheet - * min gain is 1X - * max gain is calculated based on IMX274_GAIN_REG_MAX - */ -#define IMX274_GAIN_REG_MAX (1957) -#define IMX274_MIN_GAIN (0x01 << IMX274_GAIN_SHIFT) -#define IMX274_MAX_ANALOG_GAIN ((2048 << IMX274_GAIN_SHIFT)\ - / (2048 - IMX274_GAIN_REG_MAX)) -#define IMX274_MAX_DIGITAL_GAIN (8) -#define IMX274_DEF_GAIN (20 << IMX274_GAIN_SHIFT) -#define IMX274_GAIN_CONST (2048) /* for gain formula */ - -/* - * 1 line time in us = (HMAX / 72), minimal is 4 lines - */ -#define IMX274_MIN_EXPOSURE_TIME (4 * 260 / 72) - -#define IMX274_DEFAULT_MODE IMX274_MODE_3840X2160 -#define IMX274_MAX_WIDTH (3840) -#define IMX274_MAX_HEIGHT (2160) -#define IMX274_MAX_FRAME_RATE (120) -#define IMX274_MIN_FRAME_RATE (5) -#define IMX274_DEF_FRAME_RATE (60) - -/* - * register SHR is limited to (SVR value + 1) x VMAX value - 4 - */ -#define IMX274_SHR_LIMIT_CONST (4) - -/* - * Constants for sensor reset delay - */ -#define IMX274_RESET_DELAY1 (2000) -#define IMX274_RESET_DELAY2 (2200) - -/* - * shift and mask constants - */ -#define IMX274_SHIFT_8_BITS (8) -#define IMX274_SHIFT_16_BITS (16) -#define IMX274_MASK_LSB_2_BITS (0x03) -#define IMX274_MASK_LSB_3_BITS (0x07) -#define IMX274_MASK_LSB_4_BITS (0x0f) -#define IMX274_MASK_LSB_8_BITS (0x00ff) - -#define DRIVER_NAME "IMX274" - -/* - * IMX274 register definitions - */ -#define IMX274_FRAME_LENGTH_ADDR_1 0x30FA /* VMAX, MSB */ -#define IMX274_FRAME_LENGTH_ADDR_2 0x30F9 /* VMAX */ -#define IMX274_FRAME_LENGTH_ADDR_3 0x30F8 /* VMAX, LSB */ -#define IMX274_SVR_REG_MSB 0x300F /* SVR */ -#define IMX274_SVR_REG_LSB 0x300E /* SVR */ -#define IMX274_HMAX_REG_MSB 0x30F7 /* HMAX */ -#define IMX274_HMAX_REG_LSB 0x30F6 /* HMAX */ -#define IMX274_COARSE_TIME_ADDR_MSB 0x300D /* SHR */ -#define IMX274_COARSE_TIME_ADDR_LSB 0x300C /* SHR */ -#define IMX274_ANALOG_GAIN_ADDR_LSB 0x300A /* ANALOG GAIN LSB */ -#define IMX274_ANALOG_GAIN_ADDR_MSB 0x300B /* ANALOG GAIN MSB */ -#define IMX274_DIGITAL_GAIN_REG 0x3012 /* Digital Gain */ -#define IMX274_VFLIP_REG 0x301A /* VERTICAL FLIP */ -#define IMX274_STANDBY_REG 0x3000 /* STANDBY */ - -#define IMX274_TABLE_WAIT_MS 0 -#define IMX274_TABLE_END 1 - -/* - * imx274 I2C operation related structure - */ -struct reg_8 { - u16 addr; - u8 val; -}; - -#define imx274_reg struct reg_8 - -static struct regmap_config imx274_regmap_config = { - .reg_bits = 16, - .val_bits = 8, - .cache_type = REGCACHE_RBTREE, -}; - -/* - * imx274 format related structure - */ -struct imx274_frmfmt { - u32 mbus_code; - enum v4l2_colorspace colorspace; - struct v4l2_frmsize_discrete size; - int mode; -}; - -/* - * imx274 test pattern related structure - */ -enum { - TEST_PATTERN_DISABLED = 0, - TEST_PATTERN_ALL_000H, - TEST_PATTERN_ALL_FFFH, - TEST_PATTERN_ALL_555H, - TEST_PATTERN_ALL_AAAH, - TEST_PATTERN_VSP_5AH, /* VERTICAL STRIPE PATTERN 555H/AAAH */ - TEST_PATTERN_VSP_A5H, /* VERTICAL STRIPE PATTERN AAAH/555H */ - TEST_PATTERN_VSP_05H, /* VERTICAL STRIPE PATTERN 000H/555H */ - TEST_PATTERN_VSP_50H, /* VERTICAL STRIPE PATTERN 555H/000H */ - TEST_PATTERN_VSP_0FH, /* VERTICAL STRIPE PATTERN 000H/FFFH */ - TEST_PATTERN_VSP_F0H, /* VERTICAL STRIPE PATTERN FFFH/000H */ - TEST_PATTERN_H_COLOR_BARS, - TEST_PATTERN_V_COLOR_BARS, -}; - -static const char * const tp_qmenu[] = { - "Disabled", - "All 000h Pattern", - "All FFFh Pattern", - "All 555h Pattern", - "All AAAh Pattern", - "Vertical Stripe (555h / AAAh)", - "Vertical Stripe (AAAh / 555h)", - "Vertical Stripe (000h / 555h)", - "Vertical Stripe (555h / 000h)", - "Vertical Stripe (000h / FFFh)", - "Vertical Stripe (FFFh / 000h)", - "Horizontal Color Bars", - "Vertical Color Bars", -}; - -/* - * All-pixel scan mode (10-bit) - * imx274 mode1(refer to datasheet) register configuration with - * 3840x2160 resolution, raw10 data and mipi four lane output - */ -static const imx274_reg imx274_mode1_3840x2160_raw10[] = { - {0x3004, 0x01}, - {0x3005, 0x01}, - {0x3006, 0x00}, - {0x3007, 0x02}, - - {0x3018, 0xA2}, /* output XVS, HVS */ - - {0x306B, 0x05}, - {0x30E2, 0x01}, - {0x30F6, 0x07}, /* HMAX, 263 */ - {0x30F7, 0x01}, /* HMAX */ - - {0x30dd, 0x01}, /* crop to 2160 */ - {0x30de, 0x06}, - {0x30df, 0x00}, - {0x30e0, 0x12}, - {0x30e1, 0x00}, - {0x3037, 0x01}, /* to crop to 3840 */ - {0x3038, 0x0c}, - {0x3039, 0x00}, - {0x303a, 0x0c}, - {0x303b, 0x0f}, - - {0x30EE, 0x01}, - {0x3130, 0x86}, - {0x3131, 0x08}, - {0x3132, 0x7E}, - {0x3133, 0x08}, - {0x3342, 0x0A}, - {0x3343, 0x00}, - {0x3344, 0x16}, - {0x3345, 0x00}, - {0x33A6, 0x01}, - {0x3528, 0x0E}, - {0x3554, 0x1F}, - {0x3555, 0x01}, - {0x3556, 0x01}, - {0x3557, 0x01}, - {0x3558, 0x01}, - {0x3559, 0x00}, - {0x355A, 0x00}, - {0x35BA, 0x0E}, - {0x366A, 0x1B}, - {0x366B, 0x1A}, - {0x366C, 0x19}, - {0x366D, 0x17}, - {0x3A41, 0x08}, - - {IMX274_TABLE_END, 0x00} -}; - -/* - * Horizontal/vertical 2/2-line binning - * (Horizontal and vertical weightedbinning, 10-bit) - * imx274 mode3(refer to datasheet) register configuration with - * 1920x1080 resolution, raw10 data and mipi four lane output - */ -static const imx274_reg imx274_mode3_1920x1080_raw10[] = { - {0x3004, 0x02}, - {0x3005, 0x21}, - {0x3006, 0x00}, - {0x3007, 0x11}, - - {0x3018, 0xA2}, /* output XVS, HVS */ - - {0x306B, 0x05}, - {0x30E2, 0x02}, - - {0x30F6, 0x04}, /* HMAX, 260 */ - {0x30F7, 0x01}, /* HMAX */ - - {0x30dd, 0x01}, /* to crop to 1920x1080 */ - {0x30de, 0x05}, - {0x30df, 0x00}, - {0x30e0, 0x04}, - {0x30e1, 0x00}, - {0x3037, 0x01}, - {0x3038, 0x0c}, - {0x3039, 0x00}, - {0x303a, 0x0c}, - {0x303b, 0x0f}, - - {0x30EE, 0x01}, - {0x3130, 0x4E}, - {0x3131, 0x04}, - {0x3132, 0x46}, - {0x3133, 0x04}, - {0x3342, 0x0A}, - {0x3343, 0x00}, - {0x3344, 0x1A}, - {0x3345, 0x00}, - {0x33A6, 0x01}, - {0x3528, 0x0E}, - {0x3554, 0x00}, - {0x3555, 0x01}, - {0x3556, 0x01}, - {0x3557, 0x01}, - {0x3558, 0x01}, - {0x3559, 0x00}, - {0x355A, 0x00}, - {0x35BA, 0x0E}, - {0x366A, 0x1B}, - {0x366B, 0x1A}, - {0x366C, 0x19}, - {0x366D, 0x17}, - {0x3A41, 0x08}, - - {IMX274_TABLE_END, 0x00} -}; - -/* - * Vertical 2/3 subsampling binning horizontal 3 binning - * imx274 mode5(refer to datasheet) register configuration with - * 1280x720 resolution, raw10 data and mipi four lane output - */ -static const imx274_reg imx274_mode5_1280x720_raw10[] = { - {0x3004, 0x03}, - {0x3005, 0x31}, - {0x3006, 0x00}, - {0x3007, 0x09}, - - {0x3018, 0xA2}, /* output XVS, HVS */ - - {0x306B, 0x05}, - {0x30E2, 0x03}, - - {0x30F6, 0x04}, /* HMAX, 260 */ - {0x30F7, 0x01}, /* HMAX */ - - {0x30DD, 0x01}, - {0x30DE, 0x07}, - {0x30DF, 0x00}, - {0x40E0, 0x04}, - {0x30E1, 0x00}, - {0x3030, 0xD4}, - {0x3031, 0x02}, - {0x3032, 0xD0}, - {0x3033, 0x02}, - - {0x30EE, 0x01}, - {0x3130, 0xE2}, - {0x3131, 0x02}, - {0x3132, 0xDE}, - {0x3133, 0x02}, - {0x3342, 0x0A}, - {0x3343, 0x00}, - {0x3344, 0x1B}, - {0x3345, 0x00}, - {0x33A6, 0x01}, - {0x3528, 0x0E}, - {0x3554, 0x00}, - {0x3555, 0x01}, - {0x3556, 0x01}, - {0x3557, 0x01}, - {0x3558, 0x01}, - {0x3559, 0x00}, - {0x355A, 0x00}, - {0x35BA, 0x0E}, - {0x366A, 0x1B}, - {0x366B, 0x19}, - {0x366C, 0x17}, - {0x366D, 0x17}, - {0x3A41, 0x04}, - - {IMX274_TABLE_END, 0x00} -}; - -/* - * imx274 first step register configuration for - * starting stream - */ -static const imx274_reg imx274_start_1[] = { - {IMX274_STANDBY_REG, 0x12}, - {IMX274_TABLE_END, 0x00} -}; - -/* - * imx274 second step register configuration for - * starting stream - */ -static const imx274_reg imx274_start_2[] = { - {0x3120, 0xF0}, /* clock settings */ - {0x3121, 0x00}, /* clock settings */ - {0x3122, 0x02}, /* clock settings */ - {0x3129, 0x9C}, /* clock settings */ - {0x312A, 0x02}, /* clock settings */ - {0x312D, 0x02}, /* clock settings */ - - {0x310B, 0x00}, - - /* PLSTMG */ - {0x304C, 0x00}, /* PLSTMG01 */ - {0x304D, 0x03}, - {0x331C, 0x1A}, - {0x331D, 0x00}, - {0x3502, 0x02}, - {0x3529, 0x0E}, - {0x352A, 0x0E}, - {0x352B, 0x0E}, - {0x3538, 0x0E}, - {0x3539, 0x0E}, - {0x3553, 0x00}, - {0x357D, 0x05}, - {0x357F, 0x05}, - {0x3581, 0x04}, - {0x3583, 0x76}, - {0x3587, 0x01}, - {0x35BB, 0x0E}, - {0x35BC, 0x0E}, - {0x35BD, 0x0E}, - {0x35BE, 0x0E}, - {0x35BF, 0x0E}, - {0x366E, 0x00}, - {0x366F, 0x00}, - {0x3670, 0x00}, - {0x3671, 0x00}, - - /* PSMIPI */ - {0x3304, 0x32}, /* PSMIPI1 */ - {0x3305, 0x00}, - {0x3306, 0x32}, - {0x3307, 0x00}, - {0x3590, 0x32}, - {0x3591, 0x00}, - {0x3686, 0x32}, - {0x3687, 0x00}, - - {IMX274_TABLE_END, 0x00} -}; - -/* - * imx274 third step register configuration for - * starting stream - */ -static const imx274_reg imx274_start_3[] = { - {IMX274_STANDBY_REG, 0x00}, - {0x303E, 0x02}, /* SYS_MODE = 2 */ - {IMX274_TABLE_END, 0x00} -}; - -/* - * imx274 forth step register configuration for - * starting stream - */ -static const imx274_reg imx274_start_4[] = { - {0x30F4, 0x00}, - {0x3018, 0xA2}, /* XHS VHS OUTUPT */ - {IMX274_TABLE_END, 0x00} -}; - -/* - * imx274 register configuration for stoping stream - */ -static const imx274_reg imx274_stop[] = { - {IMX274_STANDBY_REG, 0x01}, - {IMX274_TABLE_END, 0x00} -}; - -/* - * imx274 disable test pattern register configuration - */ -static const imx274_reg imx274_tp_disabled[] = { - {0x303C, 0x00}, - {0x377F, 0x00}, - {0x3781, 0x00}, - {0x370B, 0x00}, - {IMX274_TABLE_END, 0x00} -}; - -/* - * imx274 test pattern register configuration - * reg 0x303D defines the test pattern modes - */ -static imx274_reg imx274_tp_regs[] = { - {0x303D, 0x00}, - {0x303C, 0x11}, - {0x370E, 0x01}, - {0x377F, 0x01}, - {0x3781, 0x01}, - {0x370B, 0x11}, - {IMX274_TABLE_END, 0x00} -}; - -/* - * imx274 mode related structure - */ -enum { - IMX274_MODE_3840X2160, - IMX274_MODE_1920X1080, - IMX274_MODE_1280X720, - - IMX274_MODE_START_STREAM_1, - IMX274_MODE_START_STREAM_2, - IMX274_MODE_START_STREAM_3, - IMX274_MODE_START_STREAM_4, - IMX274_MODE_STOP_STREAM -}; - -static const imx274_reg *mode_table[] = { - [IMX274_MODE_3840X2160] = imx274_mode1_3840x2160_raw10, - [IMX274_MODE_1920X1080] = imx274_mode3_1920x1080_raw10, - [IMX274_MODE_1280X720] = imx274_mode5_1280x720_raw10, - - [IMX274_MODE_START_STREAM_1] = imx274_start_1, - [IMX274_MODE_START_STREAM_2] = imx274_start_2, - [IMX274_MODE_START_STREAM_3] = imx274_start_3, - [IMX274_MODE_START_STREAM_4] = imx274_start_4, - [IMX274_MODE_STOP_STREAM] = imx274_stop, -}; - -/* - * imx274 format related structure - */ -static const struct imx274_frmfmt imx274_formats[] = { - {MEDIA_BUS_FMT_SRGGB10_1X10, V4L2_COLORSPACE_SRGB, {3840, 2160}, - IMX274_MODE_3840X2160}, - {MEDIA_BUS_FMT_SRGGB10_1X10, V4L2_COLORSPACE_SRGB, {1920, 1080}, - IMX274_MODE_1920X1080}, - {MEDIA_BUS_FMT_SRGGB10_1X10, V4L2_COLORSPACE_SRGB, {1280, 720}, - IMX274_MODE_1280X720}, -}; - -/* - * minimal frame length for each mode - * refer to datasheet section "Frame Rate Adjustment (CSI-2)" - */ -static int min_frame_len[] = { - 4550, /* mode 1, 4K */ - 2310, /* mode 3, 1080p */ - 2310 /* mode 5, 720p */ -}; - -/* - * minimal numbers of SHR register - * refer to datasheet table "Shutter Setting (CSI-2)" - */ -static int min_SHR[] = { - 12, /* mode 1, 4K */ - 8, /* mode 3, 1080p */ - 8 /* mode 5, 720p */ -}; - -static int max_frame_rate[] = { - 60, /* mode 1 , 4K */ - 120, /* mode 3, 1080p */ - 120 /* mode 5, 720p */ -}; - -/* - * Number of clocks per internal offset period - * a constant based on mode - * refer to section "Integration Time in Each Readout Drive Mode (CSI-2)" - * in the datasheet - * for the implemented 3 modes, it happens to be the same number - */ -static const int nocpiop[] = { - 112, /* mode 1 , 4K */ - 112, /* mode 3, 1080p */ - 112 /* mode 5, 720p */ -}; - -/* - * struct imx274_ctrls - imx274 ctrl structure - * @handler: V4L2 ctrl handler structure - * @exposure: Pointer to expsure ctrl structure - * @gain: Pointer to gain ctrl structure - * @vflip: Pointer to vflip ctrl structure - * @test_pattern: Pointer to test pattern ctrl structure - */ -struct imx274_ctrls { - struct v4l2_ctrl_handler handler; - struct v4l2_ctrl *exposure; - struct v4l2_ctrl *gain; - struct v4l2_ctrl *vflip; - struct v4l2_ctrl *test_pattern; -}; - -/* - * struct stim274 - imx274 device structure - * @sd: V4L2 subdevice structure - * @pd: Media pad structure - * @client: Pointer to I2C client - * @ctrls: imx274 control structure - * @format: V4L2 media bus frame format structure - * @frame_rate: V4L2 frame rate structure - * @regmap: Pointer to regmap structure - * @reset_gpio: Pointer to reset gpio - * @lock: Mutex structure - * @mode_index: Resolution mode index - */ -struct stimx274 { - struct v4l2_subdev sd; - struct media_pad pad; - struct i2c_client *client; - struct imx274_ctrls ctrls; - struct v4l2_mbus_framefmt format; - struct v4l2_fract frame_interval; - struct regmap *regmap; - struct gpio_desc *reset_gpio; - struct mutex lock; /* mutex lock for operations */ - u32 mode_index; -}; - -/* - * Function declaration - */ -static int imx274_set_gain(struct stimx274 *priv, s64 val); -static int imx274_set_exposure(struct stimx274 *priv, s64 val); -static int imx274_set_vflip(struct stimx274 *priv, int val); -static int imx274_set_test_pattern(struct stimx274 *priv, int val); -static int imx274_set_frame_interval(struct stimx274 *priv, - struct v4l2_fract frame_interval); - -static inline void msleep_range(unsigned int delay_base) -{ - usleep_range(delay_base * 1000, delay_base * 1000 + 500); -} - -/* - * v4l2_ctrl and v4l2_subdev related operations - */ -static inline struct v4l2_subdev *ctrl_to_sd(struct v4l2_ctrl *ctrl) -{ - return &container_of(ctrl->handler, - struct stimx274, ctrls.handler)->sd; -} - -static inline struct stimx274 *to_imx274(struct v4l2_subdev *sd) -{ - return container_of(sd, struct stimx274, sd); -} - -/* - * imx274_regmap_util_write_table_8 - Function for writing register table - * @regmap: Pointer to device reg map structure - * @table: Table containing register values - * @wait_ms_addr: Flag for performing delay - * @end_addr: Flag for incating end of table - * - * This is used to write register table into sensor's reg map. - * - * Return: 0 on success, errors otherwise - */ -static int imx274_regmap_util_write_table_8(struct regmap *regmap, - const struct reg_8 table[], - u16 wait_ms_addr, u16 end_addr) -{ - int err; - const struct reg_8 *next; - u8 val; - - int range_start = -1; - int range_count = 0; - u8 range_vals[16]; - int max_range_vals = ARRAY_SIZE(range_vals); - - for (next = table;; next++) { - if ((next->addr != range_start + range_count) || - (next->addr == end_addr) || - (next->addr == wait_ms_addr) || - (range_count == max_range_vals)) { - if (range_count == 1) - err = regmap_write(regmap, - range_start, range_vals[0]); - else if (range_count > 1) - err = regmap_bulk_write(regmap, range_start, - &range_vals[0], - range_count); - - if (err) - return err; - - range_start = -1; - range_count = 0; - - /* Handle special address values */ - if (next->addr == end_addr) - break; - - if (next->addr == wait_ms_addr) { - msleep_range(next->val); - continue; - } - } - - val = next->val; - - if (range_start == -1) - range_start = next->addr; - - range_vals[range_count++] = val; - } - return 0; -} - -static inline int imx274_read_reg(struct stimx274 *priv, u16 addr, u8 *val) -{ - int err; - - err = regmap_read(priv->regmap, addr, (unsigned int *)val); - if (err) - v4l2_err(&priv->sd, - "%s : i2c read failed, addr = %x\n", __func__, addr); - else - v4l2_dbg(2, debug, &priv->sd, - "%s : addr 0x%x, val=0x%x\n", __func__, - addr, *val); - return err; -} - -static inline int imx274_write_reg(struct stimx274 *priv, u16 addr, u8 val) -{ - int err; - - err = regmap_write(priv->regmap, addr, val); - if (err) - v4l2_err(&priv->sd, - "%s : i2c write failed, %x = %x\n", __func__, - addr, val); - else - v4l2_dbg(2, debug, &priv->sd, - "%s : addr 0x%x, val=0x%x\n", __func__, - addr, val); - return err; -} - -static int imx274_write_table(struct stimx274 *priv, const imx274_reg table[]) -{ - return imx274_regmap_util_write_table_8(priv->regmap, - table, IMX274_TABLE_WAIT_MS, IMX274_TABLE_END); -} - -/* - * imx274_start_stream - Function for starting stream per mode index - * @priv: Pointer to device structure - * @mode: Mode index value - * - * This is used to start steam per mode index. - * mode = 0, start stream for sensor Mode 1: 4K/raw10 - * mode = 1, start stream for sensor Mode 3: 1080p/raw10 - * mode = 2, start stream for sensor Mode 5: 720p/raw10 - * - * Return: 0 on success, errors otherwise - */ -static int imx274_start_stream(struct stimx274 *priv, int mode) -{ - int err = 0; - - err = imx274_write_table(priv, mode_table[IMX274_MODE_START_STREAM_1]); - if (err) - return err; - - err = imx274_write_table(priv, mode_table[IMX274_MODE_START_STREAM_2]); - if (err) - return err; - - err = imx274_write_table(priv, mode_table[mode]); - if (err) - return err; - - /* - * Refer to "Standby Cancel Sequence when using CSI-2" in - * imx274 datasheet, it should wait 10ms or more here. - * give it 1 extra ms for margin - */ - msleep_range(11); - err = imx274_write_table(priv, mode_table[IMX274_MODE_START_STREAM_3]); - if (err) - return err; - - /* - * Refer to "Standby Cancel Sequence when using CSI-2" in - * imx274 datasheet, it should wait 7ms or more here. - * give it 1 extra ms for margin - */ - msleep_range(8); - err = imx274_write_table(priv, mode_table[IMX274_MODE_START_STREAM_4]); - if (err) - return err; - - v4l2_dbg(1, debug, &priv->sd, "%s : finished\n", __func__); - return 0; -} - -/* - * imx274_reset - Function called to reset the sensor - * @priv: Pointer to device structure - * @rst: Input value for determining the sensor's end state after reset - * - * Set the senor in reset and then - * if rst = 0, keep it in reset; - * if rst = 1, bring it out of reset. - * - */ -static void imx274_reset(struct stimx274 *priv, int rst) -{ - gpiod_set_value_cansleep(priv->reset_gpio, 0); - usleep_range(IMX274_RESET_DELAY1, IMX274_RESET_DELAY2); - gpiod_set_value_cansleep(priv->reset_gpio, !!rst); - usleep_range(IMX274_RESET_DELAY1, IMX274_RESET_DELAY2); -} - -/** - * imx274_s_ctrl - This is used to set the imx274 V4L2 controls - * @ctrl: V4L2 control to be set - * - * This function is used to set the V4L2 controls for the imx274 sensor. - * - * Return: 0 on success, errors otherwise - */ -static int imx274_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct v4l2_subdev *sd = ctrl_to_sd(ctrl); - struct stimx274 *imx274 = to_imx274(sd); - int ret = -EINVAL; - - v4l2_dbg(1, debug, &imx274->sd, - "%s : s_ctrl: %s, value: %d\n", __func__, - ctrl->name, ctrl->val); - - mutex_lock(&imx274->lock); - - switch (ctrl->id) { - case V4L2_CID_EXPOSURE: - v4l2_dbg(1, debug, &imx274->sd, - "%s : set V4L2_CID_EXPOSURE\n", __func__); - ret = imx274_set_exposure(imx274, ctrl->val); - break; - - case V4L2_CID_GAIN: - v4l2_dbg(1, debug, &imx274->sd, - "%s : set V4L2_CID_GAIN\n", __func__); - ret = imx274_set_gain(imx274, ctrl->val); - break; - - case V4L2_CID_VFLIP: - v4l2_dbg(1, debug, &imx274->sd, - "%s : set V4L2_CID_VFLIP\n", __func__); - ret = imx274_set_vflip(imx274, ctrl->val); - break; - - case V4L2_CID_TEST_PATTERN: - v4l2_dbg(1, debug, &imx274->sd, - "%s : set V4L2_CID_TEST_PATTERN\n", __func__); - ret = imx274_set_test_pattern(imx274, ctrl->val); - break; - } - - mutex_unlock(&imx274->lock); - return ret; -} - -/** - * imx274_get_fmt - Get the pad format - * @sd: Pointer to V4L2 Sub device structure - * @cfg: Pointer to sub device pad information structure - * @fmt: Pointer to pad level media bus format - * - * This function is used to get the pad format information. - * - * Return: 0 on success - */ -static int imx274_get_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *fmt) -{ - struct stimx274 *imx274 = to_imx274(sd); - - if (fmt->pad) - return -EINVAL; - - fmt->format = imx274->format; - - return 0; -} - -/** - * imx274_set_fmt - This is used to set the pad format - * @sd: Pointer to V4L2 Sub device structure - * @cfg: Pointer to sub device pad information structure - * @format: Pointer to pad level media bus format - * - * This function is used to set the pad format. - * - * Return: 0 on success - */ -static int imx274_set_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *format) -{ - struct v4l2_mbus_framefmt *fmt = &format->format; - struct stimx274 *imx274 = to_imx274(sd); - struct i2c_client *client = imx274->client; - int index; - - v4l2_dbg(1, debug, client, - "%s: width = %d height = %d code = %d mbus_code = %d\n", - __func__, fmt->width, fmt->height, fmt->code, - imx274_formats[imx274->mode_index].mbus_code); - - if (format->pad) - return -EINVAL; - - mutex_lock(&imx274->lock); - - for (index = 0; index < ARRAY_SIZE(imx274_formats); index++) { - if (imx274_formats[index].size.width == fmt->width && - imx274_formats[index].size.height == fmt->height) - break; - } - - if (index >= ARRAY_SIZE(imx274_formats)) { - /* default to first format */ - index = 0; - } - - imx274->mode_index = index; - - if (fmt->width > IMX274_MAX_WIDTH) - fmt->width = IMX274_MAX_WIDTH; - if (fmt->height > IMX274_MAX_HEIGHT) - fmt->height = IMX274_MAX_HEIGHT; - fmt->width = fmt->width & (~IMX274_MASK_LSB_2_BITS); - fmt->height = fmt->height & (~IMX274_MASK_LSB_2_BITS); - fmt->field = V4L2_FIELD_NONE; - - if (format->which == V4L2_SUBDEV_FORMAT_TRY) - cfg->try_fmt = *fmt; - else - imx274->format = *fmt; - - mutex_unlock(&imx274->lock); - return 0; -} - -/** - * imx274_g_frame_interval - Get the frame interval - * @sd: Pointer to V4L2 Sub device structure - * @fi: Pointer to V4l2 Sub device frame interval structure - * - * This function is used to get the frame interval. - * - * Return: 0 on success - */ -static int imx274_g_frame_interval(struct v4l2_subdev *sd, - struct v4l2_subdev_frame_interval *fi) -{ - struct stimx274 *imx274 = to_imx274(sd); - - fi->interval = imx274->frame_interval; - v4l2_dbg(1, debug, &imx274->sd, "%s frame rate = %d / %d\n", - __func__, imx274->frame_interval.numerator, - imx274->frame_interval.denominator); - - return 0; -} - -/** - * imx274_s_frame_interval - Set the frame interval - * @sd: Pointer to V4L2 Sub device structure - * @fi: Pointer to V4l2 Sub device frame interval structure - * - * This function is used to set the frame intervavl. - * - * Return: 0 on success - */ -static int imx274_s_frame_interval(struct v4l2_subdev *sd, - struct v4l2_subdev_frame_interval *fi) -{ - struct stimx274 *imx274 = to_imx274(sd); - struct v4l2_ctrl *ctrl = imx274->ctrls.exposure; - int min, max, def; - int ret; - - mutex_lock(&imx274->lock); - ret = imx274_set_frame_interval(imx274, fi->interval); - mutex_unlock(&imx274->lock); - - if (!ret) { - /* - * exposure time range is decided by frame interval - * need to update it after frame interal changes - */ - min = IMX274_MIN_EXPOSURE_TIME; - max = fi->interval.numerator * 1000000 - / fi->interval.denominator; - def = max; - if (v4l2_ctrl_modify_range(ctrl, min, max, 1, def)) - v4l2_err(sd, "Exposure ctrl range update failed\n"); - - /* update exposure time accordingly */ - mutex_lock(&imx274->lock); - imx274_set_exposure(imx274, imx274->ctrls.exposure->val); - mutex_unlock(&imx274->lock); - - v4l2_dbg(1, debug, &imx274->sd, "set frame interval to %uus\n", - fi->interval.numerator * 1000000 - / fi->interval.denominator); - } - - return ret; -} - -/** - * imx274_load_default - load default control values - * @priv: Pointer to device structure - * - * Return: 0 on success, errors otherwise - */ -static int imx274_load_default(struct stimx274 *priv) -{ - struct v4l2_control control; - int ret; - - /* load default control values */ - priv->frame_interval.numerator = 1; - priv->frame_interval.denominator = IMX274_DEF_FRAME_RATE; - priv->ctrls.exposure->val = 1000000 / IMX274_DEF_FRAME_RATE; - priv->ctrls.gain->val = IMX274_DEF_GAIN; - priv->ctrls.vflip->val = 0; - priv->ctrls.test_pattern->val = TEST_PATTERN_DISABLED; - - /* update frame rate */ - ret = imx274_set_frame_interval(priv, - priv->frame_interval); - if (ret) - return ret; - - /* update exposure time */ - control.id = V4L2_CID_EXPOSURE; - control.value = priv->ctrls.exposure->val; - ret = v4l2_s_ctrl(NULL, &priv->ctrls.handler, &control); - if (ret) - return ret; - - /* update gain */ - control.id = V4L2_CID_GAIN; - control.value = priv->ctrls.gain->val; - ret = v4l2_s_ctrl(NULL, &priv->ctrls.handler, &control); - if (ret) - return ret; - - /* update vflip */ - control.id = V4L2_CID_VFLIP; - control.value = priv->ctrls.vflip->val; - ret = v4l2_s_ctrl(NULL, &priv->ctrls.handler, &control); - if (ret) - return ret; - - return 0; -} - -/** - * imx274_s_stream - It is used to start/stop the streaming. - * @sd: V4L2 Sub device - * @on: Flag (True / False) - * - * This function controls the start or stop of streaming for the - * imx274 sensor. - * - * Return: 0 on success, errors otherwise - */ -static int imx274_s_stream(struct v4l2_subdev *sd, int on) -{ - struct stimx274 *imx274 = to_imx274(sd); - struct v4l2_control control; - int ret = 0; - - v4l2_dbg(1, debug, &imx274->sd, "%s : %s, mode index = %d\n", __func__, - on ? "Stream Start" : "Stream Stop", imx274->mode_index); - - mutex_lock(&imx274->lock); - - if (on) { - /* start stream */ - ret = imx274_start_stream(imx274, imx274->mode_index); - if (ret) - goto fail; - - /* - * update frame rate & expsoure. if the last mode is different, - * HMAX could be changed. As the result, frame rate & exposure - * are changed. - * gain is not affected. - */ - ret = imx274_set_frame_interval(imx274, - imx274->frame_interval); - if (ret) - goto fail; - - mutex_unlock(&imx274->lock); - - control.id = V4L2_CID_EXPOSURE; - control.value = imx274->ctrls.exposure->val; - ret = v4l2_s_ctrl(NULL, &imx274->ctrls.handler, &control); - if (ret) - goto fail; - - mutex_lock(&imx274->lock); - - } else { - /* stop stream */ - ret = imx274_write_table(imx274, - mode_table[IMX274_MODE_STOP_STREAM]); - if (ret) - goto fail; - } - - mutex_unlock(&imx274->lock); - v4l2_dbg(1, debug, &imx274->sd, - "%s : Done: mode = %d\n", __func__, imx274->mode_index); - return 0; - -fail: - mutex_unlock(&imx274->lock); - v4l2_err(&imx274->sd, "s_stream failed\n"); - return ret; -} - -static inline void imx274_calculate_frame_length_regs(imx274_reg *regs, - u32 frame_length) -{ - regs->addr = IMX274_FRAME_LENGTH_ADDR_1; - regs->val = (frame_length >> IMX274_SHIFT_16_BITS) - & IMX274_MASK_LSB_4_BITS; - (regs + 1)->addr = IMX274_FRAME_LENGTH_ADDR_2; - (regs + 1)->val = (frame_length >> IMX274_SHIFT_8_BITS) - & IMX274_MASK_LSB_8_BITS; - (regs + 2)->addr = IMX274_FRAME_LENGTH_ADDR_3; - (regs + 2)->val = (frame_length) & IMX274_MASK_LSB_8_BITS; -} - -static inline void imx274_calculate_coarse_time_regs(imx274_reg *regs, - u32 coarse_time) -{ - regs->addr = IMX274_COARSE_TIME_ADDR_MSB; - regs->val = (coarse_time >> IMX274_SHIFT_8_BITS) - & IMX274_MASK_LSB_8_BITS; - (regs + 1)->addr = IMX274_COARSE_TIME_ADDR_LSB; - (regs + 1)->val = (coarse_time) & IMX274_MASK_LSB_8_BITS; -} - -static inline void imx274_calculate_gain_regs(imx274_reg *regs, u16 gain) -{ - regs->addr = IMX274_ANALOG_GAIN_ADDR_MSB; - regs->val = (gain >> IMX274_SHIFT_8_BITS) & IMX274_MASK_LSB_3_BITS; - - (regs + 1)->addr = IMX274_ANALOG_GAIN_ADDR_LSB; - (regs + 1)->val = (gain) & IMX274_MASK_LSB_8_BITS; -} - -/* - * imx274_get_frame_length - Function for obtaining current frame length - * @priv: Pointer to device structure - * @val: Pointer to obainted value - * - * frame_length = vmax x (svr + 1), in unit of hmax. - * - * Return: 0 on success - */ -static int imx274_get_frame_length(struct stimx274 *priv, s64 *val) -{ - int err; - u16 svr; - u32 vmax; - u8 reg_val[3]; - - /* svr */ - err = imx274_read_reg(priv, IMX274_SVR_REG_LSB, ®_val[0]); - err |= imx274_read_reg(priv, IMX274_SVR_REG_MSB, ®_val[1]); - if (err) - goto fail; - svr = (reg_val[1] << IMX274_SHIFT_8_BITS) + reg_val[0]; - - /* vmax */ - err = imx274_read_reg(priv, IMX274_FRAME_LENGTH_ADDR_3, ®_val[0]); - err |= imx274_read_reg(priv, IMX274_FRAME_LENGTH_ADDR_2, ®_val[1]); - err |= imx274_read_reg(priv, IMX274_FRAME_LENGTH_ADDR_1, ®_val[2]); - if (err) - goto fail; - vmax = ((reg_val[2] & IMX274_MASK_LSB_3_BITS) << IMX274_SHIFT_16_BITS) - + (reg_val[1] << IMX274_SHIFT_8_BITS) + reg_val[0]; - - *val = vmax * (svr + 1); - return 0; - -fail: - v4l2_err(&priv->sd, "%s error = %d\n", __func__, err); - return err; -} - -static int imx274_clamp_coarse_time(struct stimx274 *priv, s64 *val, - s64 *frame_length) -{ - int err; - - err = imx274_get_frame_length(priv, frame_length); - if (err) - return err; - - if (*frame_length < min_frame_len[priv->mode_index]) - *frame_length = min_frame_len[priv->mode_index]; - - *val = *frame_length - *val; /* convert to raw shr */ - if (*val > *frame_length - IMX274_SHR_LIMIT_CONST) - *val = *frame_length - IMX274_SHR_LIMIT_CONST; - else if (*val < min_SHR[priv->mode_index]) - *val = min_SHR[priv->mode_index]; - - return 0; -} - -/* - * imx274_set_digital gain - Function called when setting digital gain - * @priv: Pointer to device structure - * @dgain: Value of digital gain. - * - * Digital gain has only 4 steps: 1x, 2x, 4x, and 8x - * - * Return: 0 on success - */ -static int imx274_set_digital_gain(struct stimx274 *priv, u32 dgain) -{ - int ret; - u8 reg_val; - - switch (dgain) { - case 1: - reg_val = 0; - break; - case 2: - reg_val = 1; - break; - case 4: - reg_val = 2; - break; - case 8: - reg_val = 3; - break; - default: - return -EINVAL; - } - - ret = imx274_write_reg(priv, IMX274_DIGITAL_GAIN_REG, - reg_val & IMX274_MASK_LSB_4_BITS); - return ret; -} - -/* - * imx274_set_gain - Function called when setting gain - * @priv: Pointer to device structure - * @val: Value of gain. the real value = val << IMX274_GAIN_SHIFT; - * - * Set the gain based on input value. - * The caller should hold the mutex lock imx274->lock if necessary - * - * Return: 0 on success - */ -static int imx274_set_gain(struct stimx274 *priv, s64 val) -{ - imx274_reg reg_list[2]; - int err; - u32 gain, analog_gain, digital_gain, gain_reg; - int i; - - gain = (u32)(val); - - v4l2_dbg(1, debug, &priv->sd, - "%s : input gain = %d.%d\n", __func__, - gain >> IMX274_GAIN_SHIFT, - ((gain & IMX274_GAIN_SHIFT_MASK) * 100) >> IMX274_GAIN_SHIFT); - - if (gain > IMX274_MAX_DIGITAL_GAIN * IMX274_MAX_ANALOG_GAIN) - gain = IMX274_MAX_DIGITAL_GAIN * IMX274_MAX_ANALOG_GAIN; - else if (gain < IMX274_MIN_GAIN) - gain = IMX274_MIN_GAIN; - - if (gain <= IMX274_MAX_ANALOG_GAIN) - digital_gain = 1; - else if (gain <= IMX274_MAX_ANALOG_GAIN * 2) - digital_gain = 2; - else if (gain <= IMX274_MAX_ANALOG_GAIN * 4) - digital_gain = 4; - else - digital_gain = IMX274_MAX_DIGITAL_GAIN; - - analog_gain = gain / digital_gain; - - v4l2_dbg(2, debug, &priv->sd, - "%s : digital gain = %d, analog gain = %d.%d\n", - __func__, digital_gain, analog_gain >> IMX274_GAIN_SHIFT, - ((analog_gain & IMX274_GAIN_SHIFT_MASK) * 100) - >> IMX274_GAIN_SHIFT); - - err = imx274_set_digital_gain(priv, digital_gain); - if (err) - goto fail; - - /* convert to register value, refer to imx274 datasheet */ - gain_reg = (u32)IMX274_GAIN_CONST - - (IMX274_GAIN_CONST << IMX274_GAIN_SHIFT) / analog_gain; - if (gain_reg > IMX274_GAIN_REG_MAX) - gain_reg = IMX274_GAIN_REG_MAX; - - imx274_calculate_gain_regs(reg_list, (u16)gain_reg); - - for (i = 0; i < ARRAY_SIZE(reg_list); i++) { - err = imx274_write_reg(priv, reg_list[i].addr, - reg_list[i].val); - if (err) - goto fail; - } - - /* convert register value back to gain value */ - priv->ctrls.gain->val = (IMX274_GAIN_CONST << IMX274_GAIN_SHIFT) - / (IMX274_GAIN_CONST - gain_reg) - * digital_gain; - - v4l2_dbg(1, debug, &priv->sd, - "%s : GAIN control success, gain_reg = %d, new gain = %d\n", - __func__, gain_reg, priv->ctrls.gain->val); - - return 0; - -fail: - v4l2_err(&priv->sd, "%s error = %d\n", __func__, err); - return err; -} - -/* - * imx274_set_coarse_time - Function called when setting SHR value - * @priv: Pointer to device structure - * @val: Value for exposure time in number of line_length, or [HMAX] - * - * Set SHR value based on input value. - * - * Return: 0 on success - */ -static int imx274_set_coarse_time(struct stimx274 *priv, s64 *val) -{ - imx274_reg reg_list[2]; - int err; - s64 coarse_time, frame_length; - int i; - - coarse_time = *val; - - /* convert exposure_time to appropriate SHR value */ - err = imx274_clamp_coarse_time(priv, &coarse_time, &frame_length); - if (err) - goto fail; - - /* prepare SHR registers */ - imx274_calculate_coarse_time_regs(reg_list, coarse_time); - - /* write to SHR registers */ - for (i = 0; i < ARRAY_SIZE(reg_list); i++) { - err = imx274_write_reg(priv, reg_list[i].addr, - reg_list[i].val); - if (err) - goto fail; - } - - *val = frame_length - coarse_time; - return 0; - -fail: - v4l2_err(&priv->sd, "%s error = %d\n", __func__, err); - return err; -} - -/* - * imx274_set_exposure - Function called when setting exposure time - * @priv: Pointer to device structure - * @val: Variable for exposure time, in the unit of micro-second - * - * Set exposure time based on input value. - * The caller should hold the mutex lock imx274->lock if necessary - * - * Return: 0 on success - */ -static int imx274_set_exposure(struct stimx274 *priv, s64 val) -{ - int err; - u16 hmax; - u8 reg_val[2]; - s64 coarse_time; /* exposure time in unit of line (HMAX)*/ - - /* step 1: convert input exposure_time (val) into number of 1[HMAX] */ - - /* obtain HMAX value */ - err = imx274_read_reg(priv, IMX274_HMAX_REG_LSB, ®_val[0]); - if (err) - goto fail; - err = imx274_read_reg(priv, IMX274_HMAX_REG_MSB, ®_val[1]); - if (err) - goto fail; - hmax = (reg_val[1] << IMX274_SHIFT_8_BITS) + reg_val[0]; - if (hmax == 0) { - err = -EINVAL; - goto fail; - } - - coarse_time = (IMX274_PIXCLK_CONST1 * val / IMX274_PIXCLK_CONST2 - - nocpiop[priv->mode_index]) / hmax; - - if (coarse_time < 0) - coarse_time = 0; - - /* step 2: convert exposure_time into SHR value */ - - /* set SHR */ - err = imx274_set_coarse_time(priv, &coarse_time); - if (err) - goto fail; - - priv->ctrls.exposure->val = - (coarse_time * hmax + nocpiop[priv->mode_index]) - * IMX274_PIXCLK_CONST2 / IMX274_PIXCLK_CONST1; - - v4l2_dbg(1, debug, &priv->sd, - "%s : EXPOSURE control success\n", __func__); - return 0; - -fail: - v4l2_err(&priv->sd, "%s error = %d\n", __func__, err); - return err; -} - -/* - * imx274_set_vflip - Function called when setting vertical flip - * @priv: Pointer to device structure - * @val: Value for vflip setting - * - * Set vertical flip based on input value. - * val = 0: normal, no vertical flip - * val = 1: vertical flip enabled - * The caller should hold the mutex lock imx274->lock if necessary - * - * Return: 0 on success - */ -static int imx274_set_vflip(struct stimx274 *priv, int val) -{ - int err; - - err = imx274_write_reg(priv, IMX274_VFLIP_REG, val); - if (err) { - v4l2_err(&priv->sd, "VFILP control error\n"); - return err; - } - - v4l2_dbg(1, debug, &priv->sd, - "%s : VFLIP control success\n", __func__); - priv->ctrls.vflip->val = val; - return 0; -} - -/* - * imx274_set_test_pattern - Function called when setting test pattern - * @priv: Pointer to device structure - * @val: Variable for test pattern - * - * Set to different test patterns based on input value. - * - * Return: 0 on success - */ -static int imx274_set_test_pattern(struct stimx274 *priv, int val) -{ - int err = 0; - - if (val == TEST_PATTERN_DISABLED) { - err = imx274_write_table(priv, imx274_tp_disabled); - } else if (val <= TEST_PATTERN_V_COLOR_BARS) { - imx274_tp_regs[0].val = val - 1; - err = imx274_write_table(priv, imx274_tp_regs); - } else { - v4l2_err(&priv->sd, "TEST PATTERN control our of range\n"); - return -EINVAL; - } - - if (err) - goto fail; - - v4l2_dbg(1, debug, &priv->sd, - "%s : TEST PATTERN control success\n", __func__); - - priv->ctrls.test_pattern->val = val; - return 0; - -fail: - v4l2_err(&priv->sd, "%s error = %d\n", __func__, err); - return err; -} - -/* - * imx274_set_frame_length - Function called when setting frame length - * @priv: Pointer to device structure - * @val: Variable for frame length (= VMAX, i.e. vertical drive period length) - * - * Set frame length based on input value. - * - * Return: 0 on success - */ -static int imx274_set_frame_length(struct stimx274 *priv, u32 val) -{ - imx274_reg reg_list[3]; - int err; - u32 frame_length; - int i; - - v4l2_dbg(1, debug, &priv->sd, "%s : input length = %d\n", - __func__, val); - - frame_length = (u32)val; - - imx274_calculate_frame_length_regs(reg_list, frame_length); - for (i = 0; i < ARRAY_SIZE(reg_list); i++) { - err = imx274_write_reg(priv, reg_list[i].addr, - reg_list[i].val); - if (err) - goto fail; - } - - return 0; - -fail: - v4l2_err(&priv->sd, "%s error = %d\n", __func__, err); - return err; -} - -/* - * imx274_set_frame_interval - Function called when setting frame interval - * @priv: Pointer to device structure - * @frame_interval: Variable for frame interval - * - * Change frame interval by updating VMAX value - * The caller should hold the mutex lock imx274->lock if necessary - * - * Return: 0 on success - */ -static int imx274_set_frame_interval(struct stimx274 *priv, - struct v4l2_fract frame_interval) -{ - int err; - s64 frame_length, req_frame_rate; - u16 svr; - u16 hmax; - u8 reg_val[2]; - - v4l2_dbg(1, debug, &priv->sd, "%s: input frame interval = %d / %d", - __func__, frame_interval.numerator, - frame_interval.denominator); - - if (frame_interval.denominator == 0) { - err = -EINVAL; - goto fail; - } - - req_frame_rate = (u64)(frame_interval.denominator - / frame_interval.numerator); - - /* boundary check */ - if (req_frame_rate > max_frame_rate[priv->mode_index]) { - frame_interval.numerator = 1; - frame_interval.denominator = - max_frame_rate[priv->mode_index]; - } else if (req_frame_rate < IMX274_MIN_FRAME_RATE) { - frame_interval.numerator = 1; - frame_interval.denominator = IMX274_MIN_FRAME_RATE; - } - - /* - * VMAX = 1/frame_rate x 72M / (SVR+1) / HMAX - * frame_length (i.e. VMAX) = (frame_interval) x 72M /(SVR+1) / HMAX - */ - - /* SVR */ - err = imx274_read_reg(priv, IMX274_SVR_REG_LSB, ®_val[0]); - err |= imx274_read_reg(priv, IMX274_SVR_REG_MSB, ®_val[1]); - if (err) - goto fail; - svr = (reg_val[1] << IMX274_SHIFT_8_BITS) + reg_val[0]; - v4l2_dbg(2, debug, &priv->sd, - "%s : register SVR = %d\n", __func__, svr); - - /* HMAX */ - err = imx274_read_reg(priv, IMX274_HMAX_REG_LSB, ®_val[0]); - err |= imx274_read_reg(priv, IMX274_HMAX_REG_MSB, ®_val[1]); - if (err) - goto fail; - hmax = (reg_val[1] << IMX274_SHIFT_8_BITS) + reg_val[0]; - v4l2_dbg(2, debug, &priv->sd, - "%s : register HMAX = %d\n", __func__, hmax); - - frame_length = IMX274_PIXCLK_CONST1 / (svr + 1) / hmax - * frame_interval.numerator - / frame_interval.denominator; - - err = imx274_set_frame_length(priv, frame_length); - if (err) - goto fail; - - priv->frame_interval = frame_interval; - return 0; - -fail: - v4l2_err(&priv->sd, "%s error = %d\n", __func__, err); - return err; -} - -/* - * imx274_open - Called on v4l2_open() - * @sd: Pointer to V4L2 sub device structure - * @fh: Pointer to V4L2 File handle - * - * This function is called on v4l2_open(). - * - * Return: 0 on success - */ -static int imx274_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) -{ - return 0; -} - -static int imx274_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) -{ - return 0; -} - -static const struct v4l2_subdev_pad_ops imx274_pad_ops = { - .get_fmt = imx274_get_fmt, - .set_fmt = imx274_set_fmt, -}; - -static const struct v4l2_subdev_video_ops imx274_video_ops = { - .g_frame_interval = imx274_g_frame_interval, - .s_frame_interval = imx274_s_frame_interval, - .s_stream = imx274_s_stream, -}; - -static const struct v4l2_subdev_internal_ops imx274_subdev_internal_ops = { - .open = imx274_open, - .close = imx274_close -}; - -static const struct v4l2_subdev_core_ops imx274_core_ops = { -}; - -static const struct v4l2_subdev_ops imx274_subdev_ops = { - .core = &imx274_core_ops, - .pad = &imx274_pad_ops, - .video = &imx274_video_ops, -}; - -static const struct v4l2_ctrl_ops imx274_ctrl_ops = { - .s_ctrl = imx274_s_ctrl, -}; - -static const struct of_device_id imx274_of_id_table[] = { - { .compatible = "sony,imx274" }, - { } -}; - -MODULE_DEVICE_TABLE(of, imx274_of_id_table); -static const struct i2c_device_id imx274_id[] = { - { "IMX274", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, imx274_id); - -static int imx274_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - struct v4l2_subdev *sd; - struct stimx274 *imx274; - int ret; - - /* initialize imx274 */ - imx274 = devm_kzalloc(&client->dev, sizeof(*imx274), GFP_KERNEL); - if (!imx274) - return -ENOMEM; - - mutex_init(&imx274->lock); - - /* initialize regmap */ - imx274->regmap = devm_regmap_init_i2c(client, &imx274_regmap_config); - if (IS_ERR(imx274->regmap)) { - dev_err(&client->dev, - "regmap init failed: %ld\n", PTR_ERR(imx274->regmap)); - return -ENODEV; - } - - /* initialize subdevice */ - imx274->client = client; - sd = &imx274->sd; - v4l2_i2c_subdev_init(sd, client, &imx274_subdev_ops); - strlcpy(sd->name, DRIVER_NAME, sizeof(sd->name)); - sd->internal_ops = &imx274_subdev_internal_ops; - sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; - - /* initialize subdev media pad */ - imx274->pad.flags = MEDIA_PAD_FL_SOURCE; - sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; - ret = media_entity_pads_init(&sd->entity, 1, &imx274->pad); - if (ret < 0) { - dev_err(&client->dev, - "%s : media entity init Failed %d\n", __func__, ret); - return ret; - } - - /* initialize sensor reset gpio */ - imx274->reset_gpio = devm_gpiod_get_optional(&client->dev, "reset", - GPIOD_OUT_HIGH); - if (IS_ERR(imx274->reset_gpio)) { - if (PTR_ERR(imx274->reset_gpio) != -EPROBE_DEFER) - dev_err(&client->dev, "Reset GPIO not setup in DT"); - return PTR_ERR(imx274->reset_gpio); - } - - /* pull sensor out of reset */ - imx274_reset(imx274, 1); - - /* initialize controls */ - ret = v4l2_ctrl_handler_init(&imx274->ctrls.handler, 2); - if (ret < 0) { - dev_err(&client->dev, - "%s : ctrl handler init Failed\n", __func__); - goto err_me; - } - - /* add new controls */ - imx274->ctrls.test_pattern = v4l2_ctrl_new_std_menu_items( - &imx274->ctrls.handler, &imx274_ctrl_ops, - V4L2_CID_TEST_PATTERN, - ARRAY_SIZE(tp_qmenu) - 1, 0, 0, tp_qmenu); - - imx274->ctrls.gain = v4l2_ctrl_new_std(&imx274->ctrls.handler, - &imx274_ctrl_ops, - V4L2_CID_GAIN, IMX274_MIN_GAIN, - IMX274_MAX_DIGITAL_GAIN * IMX274_MAX_ANALOG_GAIN, 1, - IMX274_DEF_GAIN); - - imx274->ctrls.exposure = v4l2_ctrl_new_std(&imx274->ctrls.handler, - &imx274_ctrl_ops, - V4L2_CID_EXPOSURE, IMX274_MIN_EXPOSURE_TIME, - 1000000 / IMX274_DEF_FRAME_RATE, 1, - 1000000 / IMX274_DEF_FRAME_RATE); - - imx274->ctrls.vflip = v4l2_ctrl_new_std(&imx274->ctrls.handler, - &imx274_ctrl_ops, - V4L2_CID_VFLIP, 0, 1, 1, 0); - - imx274->sd.ctrl_handler = &imx274->ctrls.handler; - if (imx274->ctrls.handler.error) { - ret = imx274->ctrls.handler.error; - goto err_ctrls; - } - - /* setup default controls */ - ret = v4l2_ctrl_handler_setup(&imx274->ctrls.handler); - if (ret) { - dev_err(&client->dev, - "Error %d setup default controls\n", ret); - goto err_ctrls; - } - - /* initialize format */ - imx274->mode_index = IMX274_MODE_3840X2160; - imx274->format.width = imx274_formats[0].size.width; - imx274->format.height = imx274_formats[0].size.height; - imx274->format.field = V4L2_FIELD_NONE; - imx274->format.code = MEDIA_BUS_FMT_SRGGB10_1X10; - imx274->format.colorspace = V4L2_COLORSPACE_SRGB; - imx274->frame_interval.numerator = 1; - imx274->frame_interval.denominator = IMX274_DEF_FRAME_RATE; - - /* register subdevice */ - ret = v4l2_async_register_subdev(sd); - if (ret < 0) { - dev_err(&client->dev, - "%s : v4l2_async_register_subdev failed %d\n", - __func__, ret); - goto err_ctrls; - } - - /* load default control values */ - ret = imx274_load_default(imx274); - if (ret) - goto err_ctrls; - - v4l2_info(sd, "imx274 : imx274 probe success !\n"); - return 0; - -err_ctrls: - v4l2_ctrl_handler_free(sd->ctrl_handler); -err_me: - media_entity_cleanup(&sd->entity); - mutex_destroy(&imx274->lock); - return ret; -} - -static int imx274_remove(struct i2c_client *client) -{ - int ret; - struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct stimx274 *imx274 = to_imx274(sd); - - /* stop stream */ - ret = imx274_write_table(imx274, - mode_table[IMX274_MODE_STOP_STREAM]); - if (ret) - return ret; - - v4l2_device_unregister_subdev(sd); - v4l2_ctrl_handler_free(sd->ctrl_handler); - media_entity_cleanup(&sd->entity); - mutex_destroy(&imx274->lock); - return 0; -} - -static struct i2c_driver imx274_i2c_driver = { - .driver = { - .name = DRIVER_NAME, - .of_match_table = imx274_of_id_table, - }, - .probe = imx274_probe, - .remove = imx274_remove, - .id_table = imx274_id, -}; - -module_i2c_driver(imx274_i2c_driver); - -MODULE_AUTHOR("Leon Luo "); -MODULE_DESCRIPTION("IMX274 CMOS Image Sensor driver"); -MODULE_LICENSE("GPL v2"); -- 2.39.2