diff options
Diffstat (limited to 'drivers/media/i2c/imx219.c')
| -rw-r--r-- | drivers/media/i2c/imx219.c | 1279 |
1 files changed, 526 insertions, 753 deletions
diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c index ec53abe2e84e..8436880dcf7a 100644 --- a/drivers/media/i2c/imx219.c +++ b/drivers/media/i2c/imx219.c @@ -18,91 +18,99 @@ #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> +#include <linux/minmax.h> #include <linux/module.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> + +#include <media/v4l2-cci.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-event.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-mediabus.h> -#include <asm/unaligned.h> - -#define IMX219_REG_VALUE_08BIT 1 -#define IMX219_REG_VALUE_16BIT 2 - -#define IMX219_REG_MODE_SELECT 0x0100 -#define IMX219_MODE_STANDBY 0x00 -#define IMX219_MODE_STREAMING 0x01 /* Chip ID */ -#define IMX219_REG_CHIP_ID 0x0000 +#define IMX219_REG_CHIP_ID CCI_REG16(0x0000) #define IMX219_CHIP_ID 0x0219 -/* External clock frequency is 24.0M */ -#define IMX219_XCLK_FREQ 24000000 - -/* Pixel rate is fixed for all the modes */ -#define IMX219_PIXEL_RATE 182400000 -#define IMX219_PIXEL_RATE_4LANE 280800000 - -#define IMX219_DEFAULT_LINK_FREQ 456000000 -#define IMX219_DEFAULT_LINK_FREQ_4LANE 363000000 +#define IMX219_REG_MODE_SELECT CCI_REG8(0x0100) +#define IMX219_MODE_STANDBY 0x00 +#define IMX219_MODE_STREAMING 0x01 -#define IMX219_REG_CSI_LANE_MODE 0x0114 +#define IMX219_REG_CSI_LANE_MODE CCI_REG8(0x0114) #define IMX219_CSI_2_LANE_MODE 0x01 #define IMX219_CSI_4_LANE_MODE 0x03 -/* V_TIMING internal */ -#define IMX219_REG_VTS 0x0160 -#define IMX219_VTS_15FPS 0x0dc6 -#define IMX219_VTS_30FPS_1080P 0x06e3 -#define IMX219_VTS_30FPS_BINNED 0x06e3 -#define IMX219_VTS_30FPS_640x480 0x06e3 -#define IMX219_VTS_MAX 0xffff +#define IMX219_REG_DPHY_CTRL CCI_REG8(0x0128) +#define IMX219_DPHY_CTRL_TIMING_AUTO 0 +#define IMX219_DPHY_CTRL_TIMING_MANUAL 1 -#define IMX219_VBLANK_MIN 4 - -/*Frame Length Line*/ -#define IMX219_FLL_MIN 0x08a6 -#define IMX219_FLL_MAX 0xffff -#define IMX219_FLL_STEP 1 -#define IMX219_FLL_DEFAULT 0x0c98 - -/* HBLANK control - read only */ -#define IMX219_PPL_DEFAULT 3448 - -/* Exposure control */ -#define IMX219_REG_EXPOSURE 0x015a -#define IMX219_EXPOSURE_MIN 4 -#define IMX219_EXPOSURE_STEP 1 -#define IMX219_EXPOSURE_DEFAULT 0x640 -#define IMX219_EXPOSURE_MAX 65535 +#define IMX219_REG_EXCK_FREQ CCI_REG16(0x012a) +#define IMX219_EXCK_FREQ(n) ((n) * 256) /* n expressed in MHz */ /* Analog gain control */ -#define IMX219_REG_ANALOG_GAIN 0x0157 +#define IMX219_REG_ANALOG_GAIN CCI_REG8(0x0157) #define IMX219_ANA_GAIN_MIN 0 #define IMX219_ANA_GAIN_MAX 232 #define IMX219_ANA_GAIN_STEP 1 #define IMX219_ANA_GAIN_DEFAULT 0x0 /* Digital gain control */ -#define IMX219_REG_DIGITAL_GAIN 0x0158 +#define IMX219_REG_DIGITAL_GAIN CCI_REG16(0x0158) #define IMX219_DGTL_GAIN_MIN 0x0100 #define IMX219_DGTL_GAIN_MAX 0x0fff #define IMX219_DGTL_GAIN_DEFAULT 0x0100 #define IMX219_DGTL_GAIN_STEP 1 -#define IMX219_REG_ORIENTATION 0x0172 +/* Exposure control */ +#define IMX219_REG_EXPOSURE CCI_REG16(0x015a) +#define IMX219_EXPOSURE_MIN 4 +#define IMX219_EXPOSURE_STEP 1 +#define IMX219_EXPOSURE_DEFAULT 0x640 +#define IMX219_EXPOSURE_MAX 65535 + +/* V_TIMING internal */ +#define IMX219_REG_VTS CCI_REG16(0x0160) +#define IMX219_VTS_MAX 0xffff + +#define IMX219_VBLANK_MIN 4 + +/* HBLANK control - read only */ +#define IMX219_PPL_DEFAULT 3448 + +#define IMX219_REG_LINE_LENGTH_A CCI_REG16(0x0162) +#define IMX219_REG_X_ADD_STA_A CCI_REG16(0x0164) +#define IMX219_REG_X_ADD_END_A CCI_REG16(0x0166) +#define IMX219_REG_Y_ADD_STA_A CCI_REG16(0x0168) +#define IMX219_REG_Y_ADD_END_A CCI_REG16(0x016a) +#define IMX219_REG_X_OUTPUT_SIZE CCI_REG16(0x016c) +#define IMX219_REG_Y_OUTPUT_SIZE CCI_REG16(0x016e) +#define IMX219_REG_X_ODD_INC_A CCI_REG8(0x0170) +#define IMX219_REG_Y_ODD_INC_A CCI_REG8(0x0171) +#define IMX219_REG_ORIENTATION CCI_REG8(0x0172) /* Binning Mode */ -#define IMX219_REG_BINNING_MODE 0x0174 -#define IMX219_BINNING_NONE 0x0000 -#define IMX219_BINNING_2X2 0x0101 -#define IMX219_BINNING_2X2_ANALOG 0x0303 +#define IMX219_REG_BINNING_MODE_H CCI_REG8(0x0174) +#define IMX219_REG_BINNING_MODE_V CCI_REG8(0x0175) +#define IMX219_BINNING_NONE 0x00 +#define IMX219_BINNING_X2 0x01 +#define IMX219_BINNING_X2_ANALOG 0x03 + +#define IMX219_REG_CSI_DATA_FORMAT_A CCI_REG16(0x018c) + +/* PLL Settings */ +#define IMX219_REG_VTPXCK_DIV CCI_REG8(0x0301) +#define IMX219_REG_VTSYCK_DIV CCI_REG8(0x0303) +#define IMX219_REG_PREPLLCK_VT_DIV CCI_REG8(0x0304) +#define IMX219_REG_PREPLLCK_OP_DIV CCI_REG8(0x0305) +#define IMX219_REG_PLL_VT_MPY CCI_REG16(0x0306) +#define IMX219_REG_OPPXCK_DIV CCI_REG8(0x0309) +#define IMX219_REG_OPSYCK_DIV CCI_REG8(0x030b) +#define IMX219_REG_PLL_OP_MPY CCI_REG16(0x030c) /* Test Pattern Control */ -#define IMX219_REG_TEST_PATTERN 0x0600 +#define IMX219_REG_TEST_PATTERN CCI_REG16(0x0600) #define IMX219_TEST_PATTERN_DISABLE 0 #define IMX219_TEST_PATTERN_SOLID_COLOR 1 #define IMX219_TEST_PATTERN_COLOR_BARS 2 @@ -110,17 +118,26 @@ #define IMX219_TEST_PATTERN_PN9 4 /* Test pattern colour components */ -#define IMX219_REG_TESTP_RED 0x0602 -#define IMX219_REG_TESTP_GREENR 0x0604 -#define IMX219_REG_TESTP_BLUE 0x0606 -#define IMX219_REG_TESTP_GREENB 0x0608 +#define IMX219_REG_TESTP_RED CCI_REG16(0x0602) +#define IMX219_REG_TESTP_GREENR CCI_REG16(0x0604) +#define IMX219_REG_TESTP_BLUE CCI_REG16(0x0606) +#define IMX219_REG_TESTP_GREENB CCI_REG16(0x0608) #define IMX219_TESTP_COLOUR_MIN 0 #define IMX219_TESTP_COLOUR_MAX 0x03ff #define IMX219_TESTP_COLOUR_STEP 1 -#define IMX219_TESTP_RED_DEFAULT IMX219_TESTP_COLOUR_MAX -#define IMX219_TESTP_GREENR_DEFAULT 0 -#define IMX219_TESTP_BLUE_DEFAULT 0 -#define IMX219_TESTP_GREENB_DEFAULT 0 + +#define IMX219_REG_TP_WINDOW_WIDTH CCI_REG16(0x0624) +#define IMX219_REG_TP_WINDOW_HEIGHT CCI_REG16(0x0626) + +/* External clock frequency is 24.0M */ +#define IMX219_XCLK_FREQ 24000000 + +/* Pixel rate is fixed for all the modes */ +#define IMX219_PIXEL_RATE 182400000 +#define IMX219_PIXEL_RATE_4LANE 280800000 + +#define IMX219_DEFAULT_LINK_FREQ 456000000 +#define IMX219_DEFAULT_LINK_FREQ_4LANE 363000000 /* IMX219 native and active pixel array size. */ #define IMX219_NATIVE_WIDTH 3296U @@ -130,16 +147,6 @@ #define IMX219_PIXEL_ARRAY_WIDTH 3280U #define IMX219_PIXEL_ARRAY_HEIGHT 2464U -struct imx219_reg { - u16 address; - u8 val; -}; - -struct imx219_reg_list { - unsigned int num_of_regs; - const struct imx219_reg *regs; -}; - /* Mode : resolution and related config&values */ struct imx219_mode { /* Frame width */ @@ -147,159 +154,52 @@ struct imx219_mode { /* Frame height */ unsigned int height; - /* Analog crop rectangle. */ - struct v4l2_rect crop; - /* V-timing */ unsigned int vts_def; - - /* Default register values */ - struct imx219_reg_list reg_list; - - /* 2x2 binning is used */ - bool binning; }; -static const struct imx219_reg imx219_common_regs[] = { - {0x0100, 0x00}, /* Mode Select */ +static const struct cci_reg_sequence imx219_common_regs[] = { + { IMX219_REG_MODE_SELECT, 0x00 }, /* Mode Select */ /* To Access Addresses 3000-5fff, send the following commands */ - {0x30eb, 0x0c}, - {0x30eb, 0x05}, - {0x300a, 0xff}, - {0x300b, 0xff}, - {0x30eb, 0x05}, - {0x30eb, 0x09}, + { CCI_REG8(0x30eb), 0x0c }, + { CCI_REG8(0x30eb), 0x05 }, + { CCI_REG8(0x300a), 0xff }, + { CCI_REG8(0x300b), 0xff }, + { CCI_REG8(0x30eb), 0x05 }, + { CCI_REG8(0x30eb), 0x09 }, /* PLL Clock Table */ - {0x0301, 0x05}, /* VTPXCK_DIV */ - {0x0303, 0x01}, /* VTSYSCK_DIV */ - {0x0304, 0x03}, /* PREPLLCK_VT_DIV 0x03 = AUTO set */ - {0x0305, 0x03}, /* PREPLLCK_OP_DIV 0x03 = AUTO set */ - {0x0306, 0x00}, /* PLL_VT_MPY */ - {0x0307, 0x39}, - {0x030b, 0x01}, /* OP_SYS_CLK_DIV */ - {0x030c, 0x00}, /* PLL_OP_MPY */ - {0x030d, 0x72}, + { IMX219_REG_VTPXCK_DIV, 5 }, + { IMX219_REG_VTSYCK_DIV, 1 }, + { IMX219_REG_PREPLLCK_VT_DIV, 3 }, /* 0x03 = AUTO set */ + { IMX219_REG_PREPLLCK_OP_DIV, 3 }, /* 0x03 = AUTO set */ + { IMX219_REG_PLL_VT_MPY, 57 }, + { IMX219_REG_OPSYCK_DIV, 1 }, + { IMX219_REG_PLL_OP_MPY, 114 }, /* Undocumented registers */ - {0x455e, 0x00}, - {0x471e, 0x4b}, - {0x4767, 0x0f}, - {0x4750, 0x14}, - {0x4540, 0x00}, - {0x47b4, 0x14}, - {0x4713, 0x30}, - {0x478b, 0x10}, - {0x478f, 0x10}, - {0x4793, 0x10}, - {0x4797, 0x0e}, - {0x479b, 0x0e}, + { CCI_REG8(0x455e), 0x00 }, + { CCI_REG8(0x471e), 0x4b }, + { CCI_REG8(0x4767), 0x0f }, + { CCI_REG8(0x4750), 0x14 }, + { CCI_REG8(0x4540), 0x00 }, + { CCI_REG8(0x47b4), 0x14 }, + { CCI_REG8(0x4713), 0x30 }, + { CCI_REG8(0x478b), 0x10 }, + { CCI_REG8(0x478f), 0x10 }, + { CCI_REG8(0x4793), 0x10 }, + { CCI_REG8(0x4797), 0x0e }, + { CCI_REG8(0x479b), 0x0e }, /* Frame Bank Register Group "A" */ - {0x0162, 0x0d}, /* Line_Length_A */ - {0x0163, 0x78}, - {0x0170, 0x01}, /* X_ODD_INC_A */ - {0x0171, 0x01}, /* Y_ODD_INC_A */ + { IMX219_REG_LINE_LENGTH_A, 3448 }, + { IMX219_REG_X_ODD_INC_A, 1 }, + { IMX219_REG_Y_ODD_INC_A, 1 }, /* Output setup registers */ - {0x0114, 0x01}, /* CSI 2-Lane Mode */ - {0x0128, 0x00}, /* DPHY Auto Mode */ - {0x012a, 0x18}, /* EXCK_Freq */ - {0x012b, 0x00}, -}; - -/* - * Register sets lifted off the i2C interface from the Raspberry Pi firmware - * driver. - * 3280x2464 = mode 2, 1920x1080 = mode 1, 1640x1232 = mode 4, 640x480 = mode 7. - */ -static const struct imx219_reg mode_3280x2464_regs[] = { - {0x0164, 0x00}, - {0x0165, 0x00}, - {0x0166, 0x0c}, - {0x0167, 0xcf}, - {0x0168, 0x00}, - {0x0169, 0x00}, - {0x016a, 0x09}, - {0x016b, 0x9f}, - {0x016c, 0x0c}, - {0x016d, 0xd0}, - {0x016e, 0x09}, - {0x016f, 0xa0}, - {0x0624, 0x0c}, - {0x0625, 0xd0}, - {0x0626, 0x09}, - {0x0627, 0xa0}, -}; - -static const struct imx219_reg mode_1920_1080_regs[] = { - {0x0164, 0x02}, - {0x0165, 0xa8}, - {0x0166, 0x0a}, - {0x0167, 0x27}, - {0x0168, 0x02}, - {0x0169, 0xb4}, - {0x016a, 0x06}, - {0x016b, 0xeb}, - {0x016c, 0x07}, - {0x016d, 0x80}, - {0x016e, 0x04}, - {0x016f, 0x38}, - {0x0624, 0x07}, - {0x0625, 0x80}, - {0x0626, 0x04}, - {0x0627, 0x38}, -}; - -static const struct imx219_reg mode_1640_1232_regs[] = { - {0x0164, 0x00}, - {0x0165, 0x00}, - {0x0166, 0x0c}, - {0x0167, 0xcf}, - {0x0168, 0x00}, - {0x0169, 0x00}, - {0x016a, 0x09}, - {0x016b, 0x9f}, - {0x016c, 0x06}, - {0x016d, 0x68}, - {0x016e, 0x04}, - {0x016f, 0xd0}, - {0x0624, 0x06}, - {0x0625, 0x68}, - {0x0626, 0x04}, - {0x0627, 0xd0}, -}; - -static const struct imx219_reg mode_640_480_regs[] = { - {0x0164, 0x03}, - {0x0165, 0xe8}, - {0x0166, 0x08}, - {0x0167, 0xe7}, - {0x0168, 0x02}, - {0x0169, 0xf0}, - {0x016a, 0x06}, - {0x016b, 0xaf}, - {0x016c, 0x02}, - {0x016d, 0x80}, - {0x016e, 0x01}, - {0x016f, 0xe0}, - {0x0624, 0x06}, - {0x0625, 0x68}, - {0x0626, 0x04}, - {0x0627, 0xd0}, -}; - -static const struct imx219_reg raw8_framefmt_regs[] = { - {0x018c, 0x08}, - {0x018d, 0x08}, - {0x0309, 0x08}, -}; - -static const struct imx219_reg raw10_framefmt_regs[] = { - {0x018c, 0x0a}, - {0x018d, 0x0a}, - {0x0309, 0x0a}, + { IMX219_REG_DPHY_CTRL, IMX219_DPHY_CTRL_TIMING_AUTO }, + { IMX219_REG_EXCK_FREQ, IMX219_EXCK_FREQ(IMX219_XCLK_FREQ / 1000000) }, }; static const s64 imx219_link_freq_menu[] = { @@ -390,69 +290,25 @@ static const struct imx219_mode supported_modes[] = { /* 8MPix 15fps mode */ .width = 3280, .height = 2464, - .crop = { - .left = IMX219_PIXEL_ARRAY_LEFT, - .top = IMX219_PIXEL_ARRAY_TOP, - .width = 3280, - .height = 2464 - }, - .vts_def = IMX219_VTS_15FPS, - .reg_list = { - .num_of_regs = ARRAY_SIZE(mode_3280x2464_regs), - .regs = mode_3280x2464_regs, - }, - .binning = false, + .vts_def = 3526, }, { /* 1080P 30fps cropped */ .width = 1920, .height = 1080, - .crop = { - .left = 688, - .top = 700, - .width = 1920, - .height = 1080 - }, - .vts_def = IMX219_VTS_30FPS_1080P, - .reg_list = { - .num_of_regs = ARRAY_SIZE(mode_1920_1080_regs), - .regs = mode_1920_1080_regs, - }, - .binning = false, + .vts_def = 1763, }, { /* 2x2 binned 30fps mode */ .width = 1640, .height = 1232, - .crop = { - .left = IMX219_PIXEL_ARRAY_LEFT, - .top = IMX219_PIXEL_ARRAY_TOP, - .width = 3280, - .height = 2464 - }, - .vts_def = IMX219_VTS_30FPS_BINNED, - .reg_list = { - .num_of_regs = ARRAY_SIZE(mode_1640_1232_regs), - .regs = mode_1640_1232_regs, - }, - .binning = true, + .vts_def = 1763, }, { /* 640x480 30fps mode */ .width = 640, .height = 480, - .crop = { - .left = 1008, - .top = 760, - .width = 1280, - .height = 960 - }, - .vts_def = IMX219_VTS_30FPS_640x480, - .reg_list = { - .num_of_regs = ARRAY_SIZE(mode_640_480_regs), - .regs = mode_640_480_regs, - }, - .binning = true, + .vts_def = 1763, }, }; @@ -460,6 +316,7 @@ struct imx219 { struct v4l2_subdev sd; struct media_pad pad; + struct regmap *regmap; struct clk *xclk; /* system clock to IMX219 */ u32 xclk_freq; @@ -476,12 +333,6 @@ struct imx219 { struct v4l2_ctrl *vblank; struct v4l2_ctrl *hblank; - /* Current mode */ - const struct imx219_mode *mode; - - /* Streaming on/off */ - bool streaming; - /* Two or Four lanes */ u8 lanes; }; @@ -491,78 +342,6 @@ static inline struct imx219 *to_imx219(struct v4l2_subdev *_sd) return container_of(_sd, struct imx219, sd); } -/* Read registers up to 2 at a time */ -static int imx219_read_reg(struct imx219 *imx219, u16 reg, u32 len, u32 *val) -{ - struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); - struct i2c_msg msgs[2]; - u8 addr_buf[2] = { reg >> 8, reg & 0xff }; - u8 data_buf[4] = { 0, }; - int ret; - - if (len > 4) - return -EINVAL; - - /* Write register address */ - msgs[0].addr = client->addr; - msgs[0].flags = 0; - msgs[0].len = ARRAY_SIZE(addr_buf); - msgs[0].buf = addr_buf; - - /* Read data from register */ - msgs[1].addr = client->addr; - msgs[1].flags = I2C_M_RD; - msgs[1].len = len; - msgs[1].buf = &data_buf[4 - len]; - - ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); - if (ret != ARRAY_SIZE(msgs)) - return -EIO; - - *val = get_unaligned_be32(data_buf); - - return 0; -} - -/* Write registers up to 2 at a time */ -static int imx219_write_reg(struct imx219 *imx219, u16 reg, u32 len, u32 val) -{ - struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); - u8 buf[6]; - - if (len > 4) - return -EINVAL; - - put_unaligned_be16(reg, buf); - put_unaligned_be32(val << (8 * (4 - len)), buf + 2); - if (i2c_master_send(client, buf, len + 2) != len + 2) - return -EIO; - - return 0; -} - -/* Write a list of registers */ -static int imx219_write_regs(struct imx219 *imx219, - const struct imx219_reg *regs, u32 len) -{ - struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); - unsigned int i; - int ret; - - for (i = 0; i < len; i++) { - ret = imx219_write_reg(imx219, regs[i].address, 1, regs[i].val); - if (ret) { - dev_err_ratelimited(&client->dev, - "Failed to write reg 0x%4.4x. error = %d\n", - regs[i].address, ret); - - return ret; - } - } - - return 0; -} - /* Get bayer order based on flip setting. */ static u32 imx219_get_format_code(struct imx219 *imx219, u32 code) { @@ -581,18 +360,27 @@ static u32 imx219_get_format_code(struct imx219 *imx219, u32 code) return imx219_mbus_formats[i]; } +/* ----------------------------------------------------------------------------- + * Controls + */ + static int imx219_set_ctrl(struct v4l2_ctrl *ctrl) { struct imx219 *imx219 = container_of(ctrl->handler, struct imx219, ctrl_handler); struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); - int ret; + const struct v4l2_mbus_framefmt *format; + struct v4l2_subdev_state *state; + int ret = 0; + + state = v4l2_subdev_get_locked_active_state(&imx219->sd); + format = v4l2_subdev_get_pad_format(&imx219->sd, state, 0); if (ctrl->id == V4L2_CID_VBLANK) { int exposure_max, exposure_def; /* Update max exposure while meeting expected vblanking */ - exposure_max = imx219->mode->height + ctrl->val - 4; + exposure_max = format->height + ctrl->val - 4; exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ? exposure_max : IMX219_EXPOSURE_DEFAULT; __v4l2_ctrl_modify_range(imx219->exposure, @@ -610,48 +398,45 @@ static int imx219_set_ctrl(struct v4l2_ctrl *ctrl) switch (ctrl->id) { case V4L2_CID_ANALOGUE_GAIN: - ret = imx219_write_reg(imx219, IMX219_REG_ANALOG_GAIN, - IMX219_REG_VALUE_08BIT, ctrl->val); + cci_write(imx219->regmap, IMX219_REG_ANALOG_GAIN, + ctrl->val, &ret); break; case V4L2_CID_EXPOSURE: - ret = imx219_write_reg(imx219, IMX219_REG_EXPOSURE, - IMX219_REG_VALUE_16BIT, ctrl->val); + cci_write(imx219->regmap, IMX219_REG_EXPOSURE, + ctrl->val, &ret); break; case V4L2_CID_DIGITAL_GAIN: - ret = imx219_write_reg(imx219, IMX219_REG_DIGITAL_GAIN, - IMX219_REG_VALUE_16BIT, ctrl->val); + cci_write(imx219->regmap, IMX219_REG_DIGITAL_GAIN, + ctrl->val, &ret); break; case V4L2_CID_TEST_PATTERN: - ret = imx219_write_reg(imx219, IMX219_REG_TEST_PATTERN, - IMX219_REG_VALUE_16BIT, - imx219_test_pattern_val[ctrl->val]); + cci_write(imx219->regmap, IMX219_REG_TEST_PATTERN, + imx219_test_pattern_val[ctrl->val], &ret); break; case V4L2_CID_HFLIP: case V4L2_CID_VFLIP: - ret = imx219_write_reg(imx219, IMX219_REG_ORIENTATION, 1, - imx219->hflip->val | - imx219->vflip->val << 1); + cci_write(imx219->regmap, IMX219_REG_ORIENTATION, + imx219->hflip->val | imx219->vflip->val << 1, &ret); break; case V4L2_CID_VBLANK: - ret = imx219_write_reg(imx219, IMX219_REG_VTS, - IMX219_REG_VALUE_16BIT, - imx219->mode->height + ctrl->val); + cci_write(imx219->regmap, IMX219_REG_VTS, + format->height + ctrl->val, &ret); break; case V4L2_CID_TEST_PATTERN_RED: - ret = imx219_write_reg(imx219, IMX219_REG_TESTP_RED, - IMX219_REG_VALUE_16BIT, ctrl->val); + cci_write(imx219->regmap, IMX219_REG_TESTP_RED, + ctrl->val, &ret); break; case V4L2_CID_TEST_PATTERN_GREENR: - ret = imx219_write_reg(imx219, IMX219_REG_TESTP_GREENR, - IMX219_REG_VALUE_16BIT, ctrl->val); + cci_write(imx219->regmap, IMX219_REG_TESTP_GREENR, + ctrl->val, &ret); break; case V4L2_CID_TEST_PATTERN_BLUE: - ret = imx219_write_reg(imx219, IMX219_REG_TESTP_BLUE, - IMX219_REG_VALUE_16BIT, ctrl->val); + cci_write(imx219->regmap, IMX219_REG_TESTP_BLUE, + ctrl->val, &ret); break; case V4L2_CID_TEST_PATTERN_GREENB: - ret = imx219_write_reg(imx219, IMX219_REG_TESTP_GREENB, - IMX219_REG_VALUE_16BIT, ctrl->val); + cci_write(imx219->regmap, IMX219_REG_TESTP_GREENB, + ctrl->val, &ret); break; default: dev_info(&client->dev, @@ -670,226 +455,224 @@ static const struct v4l2_ctrl_ops imx219_ctrl_ops = { .s_ctrl = imx219_set_ctrl, }; -static void imx219_update_pad_format(struct imx219 *imx219, - const struct imx219_mode *mode, - struct v4l2_mbus_framefmt *fmt, u32 code) +static unsigned long imx219_get_pixel_rate(struct imx219 *imx219) { - /* Bayer order varies with flips */ - fmt->code = imx219_get_format_code(imx219, code); - fmt->width = mode->width; - fmt->height = mode->height; - fmt->field = V4L2_FIELD_NONE; - fmt->colorspace = V4L2_COLORSPACE_RAW; - fmt->quantization = V4L2_QUANTIZATION_FULL_RANGE; - fmt->xfer_func = V4L2_XFER_FUNC_NONE; + return (imx219->lanes == 2) ? IMX219_PIXEL_RATE : IMX219_PIXEL_RATE_4LANE; } -static int imx219_init_cfg(struct v4l2_subdev *sd, - struct v4l2_subdev_state *state) +/* Initialize control handlers */ +static int imx219_init_controls(struct imx219 *imx219) { - struct imx219 *imx219 = to_imx219(sd); - struct v4l2_mbus_framefmt *format; - struct v4l2_rect *crop; - - /* Initialize the format. */ - format = v4l2_subdev_get_pad_format(sd, state, 0); - imx219_update_pad_format(imx219, &supported_modes[0], format, - MEDIA_BUS_FMT_SRGGB10_1X10); - - /* Initialize the crop rectangle. */ - crop = v4l2_subdev_get_pad_crop(sd, state, 0); - crop->top = IMX219_PIXEL_ARRAY_TOP; - crop->left = IMX219_PIXEL_ARRAY_LEFT; - crop->width = IMX219_PIXEL_ARRAY_WIDTH; - crop->height = IMX219_PIXEL_ARRAY_HEIGHT; - - return 0; -} + struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); + const struct imx219_mode *mode = &supported_modes[0]; + struct v4l2_ctrl_handler *ctrl_hdlr; + struct v4l2_fwnode_device_properties props; + int exposure_max, exposure_def, hblank; + int i, ret; -static int imx219_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_state *sd_state, - struct v4l2_subdev_mbus_code_enum *code) -{ - struct imx219 *imx219 = to_imx219(sd); + ctrl_hdlr = &imx219->ctrl_handler; + ret = v4l2_ctrl_handler_init(ctrl_hdlr, 12); + if (ret) + return ret; - if (code->index >= (ARRAY_SIZE(imx219_mbus_formats) / 4)) - return -EINVAL; + /* By default, PIXEL_RATE is read only */ + imx219->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, + V4L2_CID_PIXEL_RATE, + imx219_get_pixel_rate(imx219), + imx219_get_pixel_rate(imx219), 1, + imx219_get_pixel_rate(imx219)); - code->code = imx219_get_format_code(imx219, imx219_mbus_formats[code->index * 4]); + imx219->link_freq = + v4l2_ctrl_new_int_menu(ctrl_hdlr, &imx219_ctrl_ops, + V4L2_CID_LINK_FREQ, + ARRAY_SIZE(imx219_link_freq_menu) - 1, 0, + (imx219->lanes == 2) ? imx219_link_freq_menu : + imx219_link_freq_4lane_menu); + if (imx219->link_freq) + imx219->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; - return 0; -} + /* Initial vblank/hblank/exposure parameters based on current mode */ + imx219->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, + V4L2_CID_VBLANK, IMX219_VBLANK_MIN, + IMX219_VTS_MAX - mode->height, 1, + mode->vts_def - mode->height); + hblank = IMX219_PPL_DEFAULT - mode->width; + imx219->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, + V4L2_CID_HBLANK, hblank, hblank, + 1, hblank); + if (imx219->hblank) + imx219->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; + exposure_max = mode->vts_def - 4; + exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ? + exposure_max : IMX219_EXPOSURE_DEFAULT; + imx219->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, + V4L2_CID_EXPOSURE, + IMX219_EXPOSURE_MIN, exposure_max, + IMX219_EXPOSURE_STEP, + exposure_def); -static int imx219_enum_frame_size(struct v4l2_subdev *sd, - struct v4l2_subdev_state *sd_state, - struct v4l2_subdev_frame_size_enum *fse) -{ - struct imx219 *imx219 = to_imx219(sd); - u32 code; + v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, + IMX219_ANA_GAIN_MIN, IMX219_ANA_GAIN_MAX, + IMX219_ANA_GAIN_STEP, IMX219_ANA_GAIN_DEFAULT); - if (fse->index >= ARRAY_SIZE(supported_modes)) - return -EINVAL; + v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, V4L2_CID_DIGITAL_GAIN, + IMX219_DGTL_GAIN_MIN, IMX219_DGTL_GAIN_MAX, + IMX219_DGTL_GAIN_STEP, IMX219_DGTL_GAIN_DEFAULT); - code = imx219_get_format_code(imx219, fse->code); - if (fse->code != code) - return -EINVAL; + imx219->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + if (imx219->hflip) + imx219->hflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT; - fse->min_width = supported_modes[fse->index].width; - fse->max_width = fse->min_width; - fse->min_height = supported_modes[fse->index].height; - fse->max_height = fse->min_height; + imx219->vflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + if (imx219->vflip) + imx219->vflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT; - return 0; -} + v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx219_ctrl_ops, + V4L2_CID_TEST_PATTERN, + ARRAY_SIZE(imx219_test_pattern_menu) - 1, + 0, 0, imx219_test_pattern_menu); + for (i = 0; i < 4; i++) { + /* + * The assumption is that + * V4L2_CID_TEST_PATTERN_GREENR == V4L2_CID_TEST_PATTERN_RED + 1 + * V4L2_CID_TEST_PATTERN_BLUE == V4L2_CID_TEST_PATTERN_RED + 2 + * V4L2_CID_TEST_PATTERN_GREENB == V4L2_CID_TEST_PATTERN_RED + 3 + */ + v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, + V4L2_CID_TEST_PATTERN_RED + i, + IMX219_TESTP_COLOUR_MIN, + IMX219_TESTP_COLOUR_MAX, + IMX219_TESTP_COLOUR_STEP, + IMX219_TESTP_COLOUR_MAX); + /* The "Solid color" pattern is white by default */ + } -static int imx219_set_pad_format(struct v4l2_subdev *sd, - struct v4l2_subdev_state *sd_state, - struct v4l2_subdev_format *fmt) -{ - struct imx219 *imx219 = to_imx219(sd); - const struct imx219_mode *mode; - int exposure_max, exposure_def, hblank; - struct v4l2_mbus_framefmt *format; - struct v4l2_rect *crop; + if (ctrl_hdlr->error) { + ret = ctrl_hdlr->error; + dev_err(&client->dev, "%s control init failed (%d)\n", + __func__, ret); + goto error; + } - mode = v4l2_find_nearest_size(supported_modes, - ARRAY_SIZE(supported_modes), - width, height, - fmt->format.width, fmt->format.height); + ret = v4l2_fwnode_device_parse(&client->dev, &props); + if (ret) + goto error; - imx219_update_pad_format(imx219, mode, &fmt->format, fmt->format.code); + ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &imx219_ctrl_ops, + &props); + if (ret) + goto error; - format = v4l2_subdev_get_pad_format(sd, sd_state, 0); - crop = v4l2_subdev_get_pad_crop(sd, sd_state, 0); + imx219->sd.ctrl_handler = ctrl_hdlr; - *format = fmt->format; - *crop = mode->crop; + return 0; - if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { - imx219->mode = mode; - /* Update limits and set FPS to default */ - __v4l2_ctrl_modify_range(imx219->vblank, IMX219_VBLANK_MIN, - IMX219_VTS_MAX - mode->height, 1, - mode->vts_def - mode->height); - __v4l2_ctrl_s_ctrl(imx219->vblank, - mode->vts_def - mode->height); - /* Update max exposure while meeting expected vblanking */ - exposure_max = mode->vts_def - 4; - exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ? - exposure_max : IMX219_EXPOSURE_DEFAULT; - __v4l2_ctrl_modify_range(imx219->exposure, - imx219->exposure->minimum, - exposure_max, imx219->exposure->step, - exposure_def); - /* - * Currently PPL is fixed to IMX219_PPL_DEFAULT, so hblank - * depends on mode->width only, and is not changeble in any - * way other than changing the mode. - */ - hblank = IMX219_PPL_DEFAULT - mode->width; - __v4l2_ctrl_modify_range(imx219->hblank, hblank, hblank, 1, - hblank); - } +error: + v4l2_ctrl_handler_free(ctrl_hdlr); - return 0; + return ret; } -static int imx219_set_framefmt(struct imx219 *imx219, - const struct v4l2_mbus_framefmt *format) +static void imx219_free_controls(struct imx219 *imx219) { - switch (format->code) { - case MEDIA_BUS_FMT_SRGGB8_1X8: - case MEDIA_BUS_FMT_SGRBG8_1X8: - case MEDIA_BUS_FMT_SGBRG8_1X8: - case MEDIA_BUS_FMT_SBGGR8_1X8: - return imx219_write_regs(imx219, raw8_framefmt_regs, - ARRAY_SIZE(raw8_framefmt_regs)); - - case MEDIA_BUS_FMT_SRGGB10_1X10: - case MEDIA_BUS_FMT_SGRBG10_1X10: - case MEDIA_BUS_FMT_SGBRG10_1X10: - case MEDIA_BUS_FMT_SBGGR10_1X10: - return imx219_write_regs(imx219, raw10_framefmt_regs, - ARRAY_SIZE(raw10_framefmt_regs)); - } - - return -EINVAL; + v4l2_ctrl_handler_free(imx219->sd.ctrl_handler); } -static int imx219_set_binning(struct imx219 *imx219, - const struct v4l2_mbus_framefmt *format) +/* ----------------------------------------------------------------------------- + * Subdev operations + */ + +static int imx219_set_framefmt(struct imx219 *imx219, + struct v4l2_subdev_state *state) { - if (!imx219->mode->binning) { - return imx219_write_reg(imx219, IMX219_REG_BINNING_MODE, - IMX219_REG_VALUE_16BIT, - IMX219_BINNING_NONE); - } + const struct v4l2_mbus_framefmt *format; + const struct v4l2_rect *crop; + unsigned int bpp; + u64 bin_h, bin_v; + int ret = 0; + + format = v4l2_subdev_get_pad_format(&imx219->sd, state, 0); + crop = v4l2_subdev_get_pad_crop(&imx219->sd, state, 0); switch (format->code) { case MEDIA_BUS_FMT_SRGGB8_1X8: case MEDIA_BUS_FMT_SGRBG8_1X8: case MEDIA_BUS_FMT_SGBRG8_1X8: case MEDIA_BUS_FMT_SBGGR8_1X8: - return imx219_write_reg(imx219, IMX219_REG_BINNING_MODE, - IMX219_REG_VALUE_16BIT, - IMX219_BINNING_2X2_ANALOG); + bpp = 8; + break; case MEDIA_BUS_FMT_SRGGB10_1X10: case MEDIA_BUS_FMT_SGRBG10_1X10: case MEDIA_BUS_FMT_SGBRG10_1X10: case MEDIA_BUS_FMT_SBGGR10_1X10: - return imx219_write_reg(imx219, IMX219_REG_BINNING_MODE, - IMX219_REG_VALUE_16BIT, - IMX219_BINNING_2X2); + default: + bpp = 10; + break; } - return -EINVAL; -} + cci_write(imx219->regmap, IMX219_REG_X_ADD_STA_A, + crop->left - IMX219_PIXEL_ARRAY_LEFT, &ret); + cci_write(imx219->regmap, IMX219_REG_X_ADD_END_A, + crop->left - IMX219_PIXEL_ARRAY_LEFT + crop->width - 1, &ret); + cci_write(imx219->regmap, IMX219_REG_Y_ADD_STA_A, + crop->top - IMX219_PIXEL_ARRAY_TOP, &ret); + cci_write(imx219->regmap, IMX219_REG_Y_ADD_END_A, + crop->top - IMX219_PIXEL_ARRAY_TOP + crop->height - 1, &ret); + + switch (crop->width / format->width) { + case 1: + default: + bin_h = IMX219_BINNING_NONE; + break; + case 2: + bin_h = bpp == 8 ? IMX219_BINNING_X2_ANALOG : IMX219_BINNING_X2; + break; + } -static int imx219_get_selection(struct v4l2_subdev *sd, - struct v4l2_subdev_state *sd_state, - struct v4l2_subdev_selection *sel) -{ - switch (sel->target) { - case V4L2_SEL_TGT_CROP: { - sel->r = *v4l2_subdev_get_pad_crop(sd, sd_state, 0); - return 0; + switch (crop->height / format->height) { + case 1: + default: + bin_v = IMX219_BINNING_NONE; + break; + case 2: + bin_v = bpp == 8 ? IMX219_BINNING_X2_ANALOG : IMX219_BINNING_X2; + break; } - case V4L2_SEL_TGT_NATIVE_SIZE: - sel->r.top = 0; - sel->r.left = 0; - sel->r.width = IMX219_NATIVE_WIDTH; - sel->r.height = IMX219_NATIVE_HEIGHT; + cci_write(imx219->regmap, IMX219_REG_BINNING_MODE_H, bin_h, &ret); + cci_write(imx219->regmap, IMX219_REG_BINNING_MODE_V, bin_v, &ret); - return 0; + cci_write(imx219->regmap, IMX219_REG_X_OUTPUT_SIZE, + format->width, &ret); + cci_write(imx219->regmap, IMX219_REG_Y_OUTPUT_SIZE, + format->height, &ret); - case V4L2_SEL_TGT_CROP_DEFAULT: - case V4L2_SEL_TGT_CROP_BOUNDS: - sel->r.top = IMX219_PIXEL_ARRAY_TOP; - sel->r.left = IMX219_PIXEL_ARRAY_LEFT; - sel->r.width = IMX219_PIXEL_ARRAY_WIDTH; - sel->r.height = IMX219_PIXEL_ARRAY_HEIGHT; + cci_write(imx219->regmap, IMX219_REG_TP_WINDOW_WIDTH, + format->width, &ret); + cci_write(imx219->regmap, IMX219_REG_TP_WINDOW_HEIGHT, + format->height, &ret); - return 0; - } + cci_write(imx219->regmap, IMX219_REG_CSI_DATA_FORMAT_A, + (bpp << 8) | bpp, &ret); + cci_write(imx219->regmap, IMX219_REG_OPPXCK_DIV, bpp, &ret); - return -EINVAL; + return ret; } static int imx219_configure_lanes(struct imx219 *imx219) { - return imx219_write_reg(imx219, IMX219_REG_CSI_LANE_MODE, - IMX219_REG_VALUE_08BIT, (imx219->lanes == 2) ? - IMX219_CSI_2_LANE_MODE : IMX219_CSI_4_LANE_MODE); + return cci_write(imx219->regmap, IMX219_REG_CSI_LANE_MODE, + imx219->lanes == 2 ? IMX219_CSI_2_LANE_MODE : + IMX219_CSI_4_LANE_MODE, NULL); }; static int imx219_start_streaming(struct imx219 *imx219, struct v4l2_subdev_state *state) { struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); - const struct v4l2_mbus_framefmt *format; - const struct imx219_reg_list *reg_list; int ret; ret = pm_runtime_resume_and_get(&client->dev); @@ -897,7 +680,8 @@ static int imx219_start_streaming(struct imx219 *imx219, return ret; /* Send all registers that are common to all modes */ - ret = imx219_write_regs(imx219, imx219_common_regs, ARRAY_SIZE(imx219_common_regs)); + ret = cci_multi_reg_write(imx219->regmap, imx219_common_regs, + ARRAY_SIZE(imx219_common_regs), NULL); if (ret) { dev_err(&client->dev, "%s failed to send mfg header\n", __func__); goto err_rpm_put; @@ -910,37 +694,22 @@ static int imx219_start_streaming(struct imx219 *imx219, goto err_rpm_put; } - /* Apply default values of current mode */ - reg_list = &imx219->mode->reg_list; - ret = imx219_write_regs(imx219, reg_list->regs, reg_list->num_of_regs); - if (ret) { - dev_err(&client->dev, "%s failed to set mode\n", __func__); - goto err_rpm_put; - } - - format = v4l2_subdev_get_pad_format(&imx219->sd, state, 0); - ret = imx219_set_framefmt(imx219, format); + /* Apply format and crop settings. */ + ret = imx219_set_framefmt(imx219, state); if (ret) { dev_err(&client->dev, "%s failed to set frame format: %d\n", __func__, ret); goto err_rpm_put; } - ret = imx219_set_binning(imx219, format); - if (ret) { - dev_err(&client->dev, "%s failed to set binning: %d\n", - __func__, ret); - goto err_rpm_put; - } - /* Apply customized values from user */ ret = __v4l2_ctrl_handler_setup(imx219->sd.ctrl_handler); if (ret) goto err_rpm_put; /* set stream on register */ - ret = imx219_write_reg(imx219, IMX219_REG_MODE_SELECT, - IMX219_REG_VALUE_08BIT, IMX219_MODE_STREAMING); + ret = cci_write(imx219->regmap, IMX219_REG_MODE_SELECT, + IMX219_MODE_STREAMING, NULL); if (ret) goto err_rpm_put; @@ -961,8 +730,8 @@ static void imx219_stop_streaming(struct imx219 *imx219) int ret; /* set stream off register */ - ret = imx219_write_reg(imx219, IMX219_REG_MODE_SELECT, - IMX219_REG_VALUE_08BIT, IMX219_MODE_STANDBY); + ret = cci_write(imx219->regmap, IMX219_REG_MODE_SELECT, + IMX219_MODE_STANDBY, NULL); if (ret) dev_err(&client->dev, "%s failed to set stream\n", __func__); @@ -980,142 +749,176 @@ static int imx219_set_stream(struct v4l2_subdev *sd, int enable) state = v4l2_subdev_lock_and_get_active_state(sd); - if (imx219->streaming == enable) - goto unlock; - - if (enable) { - /* - * Apply default & customized values - * and then start streaming. - */ + if (enable) ret = imx219_start_streaming(imx219, state); - if (ret) - goto unlock; - } else { + else imx219_stop_streaming(imx219); - } - - imx219->streaming = enable; -unlock: v4l2_subdev_unlock_state(state); return ret; } -/* Power/clock management functions */ -static int imx219_power_on(struct device *dev) +static void imx219_update_pad_format(struct imx219 *imx219, + const struct imx219_mode *mode, + struct v4l2_mbus_framefmt *fmt, u32 code) { - struct v4l2_subdev *sd = dev_get_drvdata(dev); - struct imx219 *imx219 = to_imx219(sd); - int ret; + /* Bayer order varies with flips */ + fmt->code = imx219_get_format_code(imx219, code); + fmt->width = mode->width; + fmt->height = mode->height; + fmt->field = V4L2_FIELD_NONE; + fmt->colorspace = V4L2_COLORSPACE_RAW; + fmt->ycbcr_enc = V4L2_YCBCR_ENC_601; + fmt->quantization = V4L2_QUANTIZATION_FULL_RANGE; + fmt->xfer_func = V4L2_XFER_FUNC_NONE; +} - ret = regulator_bulk_enable(IMX219_NUM_SUPPLIES, - imx219->supplies); - if (ret) { - dev_err(dev, "%s: failed to enable regulators\n", - __func__); - return ret; - } +static int imx219_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct imx219 *imx219 = to_imx219(sd); - ret = clk_prepare_enable(imx219->xclk); - if (ret) { - dev_err(dev, "%s: failed to enable clock\n", - __func__); - goto reg_off; - } + if (code->index >= (ARRAY_SIZE(imx219_mbus_formats) / 4)) + return -EINVAL; - gpiod_set_value_cansleep(imx219->reset_gpio, 1); - usleep_range(IMX219_XCLR_MIN_DELAY_US, - IMX219_XCLR_MIN_DELAY_US + IMX219_XCLR_DELAY_RANGE_US); + code->code = imx219_get_format_code(imx219, imx219_mbus_formats[code->index * 4]); return 0; - -reg_off: - regulator_bulk_disable(IMX219_NUM_SUPPLIES, imx219->supplies); - - return ret; } -static int imx219_power_off(struct device *dev) +static int imx219_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_frame_size_enum *fse) { - struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx219 *imx219 = to_imx219(sd); + u32 code; - gpiod_set_value_cansleep(imx219->reset_gpio, 0); - regulator_bulk_disable(IMX219_NUM_SUPPLIES, imx219->supplies); - clk_disable_unprepare(imx219->xclk); + if (fse->index >= ARRAY_SIZE(supported_modes)) + return -EINVAL; + + code = imx219_get_format_code(imx219, fse->code); + if (fse->code != code) + return -EINVAL; + + fse->min_width = supported_modes[fse->index].width; + fse->max_width = fse->min_width; + fse->min_height = supported_modes[fse->index].height; + fse->max_height = fse->min_height; return 0; } -static int __maybe_unused imx219_suspend(struct device *dev) +static int imx219_set_pad_format(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_format *fmt) { - struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx219 *imx219 = to_imx219(sd); + const struct imx219_mode *mode; + struct v4l2_mbus_framefmt *format; + struct v4l2_rect *crop; + unsigned int bin_h, bin_v; - if (imx219->streaming) - imx219_stop_streaming(imx219); + mode = v4l2_find_nearest_size(supported_modes, + ARRAY_SIZE(supported_modes), + width, height, + fmt->format.width, fmt->format.height); - return 0; -} + imx219_update_pad_format(imx219, mode, &fmt->format, fmt->format.code); -static int __maybe_unused imx219_resume(struct device *dev) -{ - struct v4l2_subdev *sd = dev_get_drvdata(dev); - struct imx219 *imx219 = to_imx219(sd); - struct v4l2_subdev_state *state; - int ret; + format = v4l2_subdev_get_pad_format(sd, state, 0); + *format = fmt->format; - if (imx219->streaming) { - state = v4l2_subdev_lock_and_get_active_state(sd); - ret = imx219_start_streaming(imx219, state); - v4l2_subdev_unlock_state(state); - if (ret) - goto error; - } + /* + * Use binning to maximize the crop rectangle size, and centre it in the + * sensor. + */ + bin_h = min(IMX219_PIXEL_ARRAY_WIDTH / format->width, 2U); + bin_v = min(IMX219_PIXEL_ARRAY_HEIGHT / format->height, 2U); - return 0; + crop = v4l2_subdev_get_pad_crop(sd, state, 0); + crop->width = format->width * bin_h; + crop->height = format->height * bin_v; + crop->left = (IMX219_NATIVE_WIDTH - crop->width) / 2; + crop->top = (IMX219_NATIVE_HEIGHT - crop->height) / 2; -error: - imx219_stop_streaming(imx219); - imx219->streaming = false; + if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { + int exposure_max; + int exposure_def; + int hblank; - return ret; + /* Update limits and set FPS to default */ + __v4l2_ctrl_modify_range(imx219->vblank, IMX219_VBLANK_MIN, + IMX219_VTS_MAX - mode->height, 1, + mode->vts_def - mode->height); + __v4l2_ctrl_s_ctrl(imx219->vblank, + mode->vts_def - mode->height); + /* Update max exposure while meeting expected vblanking */ + exposure_max = mode->vts_def - 4; + exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ? + exposure_max : IMX219_EXPOSURE_DEFAULT; + __v4l2_ctrl_modify_range(imx219->exposure, + imx219->exposure->minimum, + exposure_max, imx219->exposure->step, + exposure_def); + /* + * Currently PPL is fixed to IMX219_PPL_DEFAULT, so hblank + * depends on mode->width only, and is not changeble in any + * way other than changing the mode. + */ + hblank = IMX219_PPL_DEFAULT - mode->width; + __v4l2_ctrl_modify_range(imx219->hblank, hblank, hblank, 1, + hblank); + } + + return 0; } -static int imx219_get_regulators(struct imx219 *imx219) +static int imx219_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_selection *sel) { - struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); - unsigned int i; + switch (sel->target) { + case V4L2_SEL_TGT_CROP: { + sel->r = *v4l2_subdev_get_pad_crop(sd, state, 0); + return 0; + } - for (i = 0; i < IMX219_NUM_SUPPLIES; i++) - imx219->supplies[i].supply = imx219_supply_name[i]; + case V4L2_SEL_TGT_NATIVE_SIZE: + sel->r.top = 0; + sel->r.left = 0; + sel->r.width = IMX219_NATIVE_WIDTH; + sel->r.height = IMX219_NATIVE_HEIGHT; - return devm_regulator_bulk_get(&client->dev, - IMX219_NUM_SUPPLIES, - imx219->supplies); -} + return 0; -/* Verify chip ID */ -static int imx219_identify_module(struct imx219 *imx219) -{ - struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); - int ret; - u32 val; + case V4L2_SEL_TGT_CROP_DEFAULT: + case V4L2_SEL_TGT_CROP_BOUNDS: + sel->r.top = IMX219_PIXEL_ARRAY_TOP; + sel->r.left = IMX219_PIXEL_ARRAY_LEFT; + sel->r.width = IMX219_PIXEL_ARRAY_WIDTH; + sel->r.height = IMX219_PIXEL_ARRAY_HEIGHT; - ret = imx219_read_reg(imx219, IMX219_REG_CHIP_ID, - IMX219_REG_VALUE_16BIT, &val); - if (ret) { - dev_err(&client->dev, "failed to read chip id %x\n", - IMX219_CHIP_ID); - return ret; + return 0; } - if (val != IMX219_CHIP_ID) { - dev_err(&client->dev, "chip id mismatch: %x!=%x\n", - IMX219_CHIP_ID, val); - return -EIO; - } + return -EINVAL; +} + +static int imx219_init_cfg(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state) +{ + struct v4l2_subdev_format fmt = { + .which = V4L2_SUBDEV_FORMAT_TRY, + .pad = 0, + .format = { + .code = MEDIA_BUS_FMT_SRGGB10_1X10, + .width = supported_modes[0].width, + .height = supported_modes[0].height, + }, + }; + + imx219_set_pad_format(sd, state, &fmt); return 0; } @@ -1145,129 +948,93 @@ static const struct v4l2_subdev_ops imx219_subdev_ops = { }; -static unsigned long imx219_get_pixel_rate(struct imx219 *imx219) -{ - return (imx219->lanes == 2) ? IMX219_PIXEL_RATE : IMX219_PIXEL_RATE_4LANE; -} +/* ----------------------------------------------------------------------------- + * Power management + */ -/* Initialize control handlers */ -static int imx219_init_controls(struct imx219 *imx219) +static int imx219_power_on(struct device *dev) { - struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); - struct v4l2_ctrl_handler *ctrl_hdlr; - unsigned int height = imx219->mode->height; - struct v4l2_fwnode_device_properties props; - int exposure_max, exposure_def, hblank; - int i, ret; + struct v4l2_subdev *sd = dev_get_drvdata(dev); + struct imx219 *imx219 = to_imx219(sd); + int ret; - ctrl_hdlr = &imx219->ctrl_handler; - ret = v4l2_ctrl_handler_init(ctrl_hdlr, 12); - if (ret) + ret = regulator_bulk_enable(IMX219_NUM_SUPPLIES, + imx219->supplies); + if (ret) { + dev_err(dev, "%s: failed to enable regulators\n", + __func__); return ret; + } - /* By default, PIXEL_RATE is read only */ - imx219->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, - V4L2_CID_PIXEL_RATE, - imx219_get_pixel_rate(imx219), - imx219_get_pixel_rate(imx219), 1, - imx219_get_pixel_rate(imx219)); + ret = clk_prepare_enable(imx219->xclk); + if (ret) { + dev_err(dev, "%s: failed to enable clock\n", + __func__); + goto reg_off; + } - imx219->link_freq = - v4l2_ctrl_new_int_menu(ctrl_hdlr, &imx219_ctrl_ops, - V4L2_CID_LINK_FREQ, - ARRAY_SIZE(imx219_link_freq_menu) - 1, 0, - (imx219->lanes == 2) ? imx219_link_freq_menu : - imx219_link_freq_4lane_menu); - if (imx219->link_freq) - imx219->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; + gpiod_set_value_cansleep(imx219->reset_gpio, 1); + usleep_range(IMX219_XCLR_MIN_DELAY_US, + IMX219_XCLR_MIN_DELAY_US + IMX219_XCLR_DELAY_RANGE_US); - /* Initial vblank/hblank/exposure parameters based on current mode */ - imx219->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, - V4L2_CID_VBLANK, IMX219_VBLANK_MIN, - IMX219_VTS_MAX - height, 1, - imx219->mode->vts_def - height); - hblank = IMX219_PPL_DEFAULT - imx219->mode->width; - imx219->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, - V4L2_CID_HBLANK, hblank, hblank, - 1, hblank); - if (imx219->hblank) - imx219->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; - exposure_max = imx219->mode->vts_def - 4; - exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ? - exposure_max : IMX219_EXPOSURE_DEFAULT; - imx219->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, - V4L2_CID_EXPOSURE, - IMX219_EXPOSURE_MIN, exposure_max, - IMX219_EXPOSURE_STEP, - exposure_def); + return 0; - v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, - IMX219_ANA_GAIN_MIN, IMX219_ANA_GAIN_MAX, - IMX219_ANA_GAIN_STEP, IMX219_ANA_GAIN_DEFAULT); +reg_off: + regulator_bulk_disable(IMX219_NUM_SUPPLIES, imx219->supplies); - v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, V4L2_CID_DIGITAL_GAIN, - IMX219_DGTL_GAIN_MIN, IMX219_DGTL_GAIN_MAX, - IMX219_DGTL_GAIN_STEP, IMX219_DGTL_GAIN_DEFAULT); + return ret; +} - imx219->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, - V4L2_CID_HFLIP, 0, 1, 1, 0); - if (imx219->hflip) - imx219->hflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT; +static int imx219_power_off(struct device *dev) +{ + struct v4l2_subdev *sd = dev_get_drvdata(dev); + struct imx219 *imx219 = to_imx219(sd); - imx219->vflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, - V4L2_CID_VFLIP, 0, 1, 1, 0); - if (imx219->vflip) - imx219->vflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT; + gpiod_set_value_cansleep(imx219->reset_gpio, 0); + regulator_bulk_disable(IMX219_NUM_SUPPLIES, imx219->supplies); + clk_disable_unprepare(imx219->xclk); - v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx219_ctrl_ops, - V4L2_CID_TEST_PATTERN, - ARRAY_SIZE(imx219_test_pattern_menu) - 1, - 0, 0, imx219_test_pattern_menu); - for (i = 0; i < 4; i++) { - /* - * The assumption is that - * V4L2_CID_TEST_PATTERN_GREENR == V4L2_CID_TEST_PATTERN_RED + 1 - * V4L2_CID_TEST_PATTERN_BLUE == V4L2_CID_TEST_PATTERN_RED + 2 - * V4L2_CID_TEST_PATTERN_GREENB == V4L2_CID_TEST_PATTERN_RED + 3 - */ - v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, - V4L2_CID_TEST_PATTERN_RED + i, - IMX219_TESTP_COLOUR_MIN, - IMX219_TESTP_COLOUR_MAX, - IMX219_TESTP_COLOUR_STEP, - IMX219_TESTP_COLOUR_MAX); - /* The "Solid color" pattern is white by default */ - } + return 0; +} - if (ctrl_hdlr->error) { - ret = ctrl_hdlr->error; - dev_err(&client->dev, "%s control init failed (%d)\n", - __func__, ret); - goto error; - } +/* ----------------------------------------------------------------------------- + * Probe & remove + */ - ret = v4l2_fwnode_device_parse(&client->dev, &props); - if (ret) - goto error; +static int imx219_get_regulators(struct imx219 *imx219) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); + unsigned int i; - ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &imx219_ctrl_ops, - &props); - if (ret) - goto error; + for (i = 0; i < IMX219_NUM_SUPPLIES; i++) + imx219->supplies[i].supply = imx219_supply_name[i]; - imx219->sd.ctrl_handler = ctrl_hdlr; + return devm_regulator_bulk_get(&client->dev, + IMX219_NUM_SUPPLIES, + imx219->supplies); +} - return 0; +/* Verify chip ID */ +static int imx219_identify_module(struct imx219 *imx219) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd); + int ret; + u64 val; -error: - v4l2_ctrl_handler_free(ctrl_hdlr); + ret = cci_read(imx219->regmap, IMX219_REG_CHIP_ID, &val, NULL); + if (ret) { + dev_err(&client->dev, "failed to read chip id %x\n", + IMX219_CHIP_ID); + return ret; + } - return ret; -} + if (val != IMX219_CHIP_ID) { + dev_err(&client->dev, "chip id mismatch: %x!=%llx\n", + IMX219_CHIP_ID, val); + return -EIO; + } -static void imx219_free_controls(struct imx219 *imx219) -{ - v4l2_ctrl_handler_free(imx219->sd.ctrl_handler); + return 0; } static int imx219_check_hwcfg(struct device *dev, struct imx219 *imx219) @@ -1336,6 +1103,13 @@ static int imx219_probe(struct i2c_client *client) if (imx219_check_hwcfg(dev, imx219)) return -EINVAL; + imx219->regmap = devm_cci_regmap_init_i2c(client, 16); + if (IS_ERR(imx219->regmap)) { + ret = PTR_ERR(imx219->regmap); + dev_err(dev, "failed to initialize CCI: %d\n", ret); + return ret; + } + /* Get system clock (xclk) */ imx219->xclk = devm_clk_get(dev, NULL); if (IS_ERR(imx219->xclk)) { @@ -1372,24 +1146,24 @@ static int imx219_probe(struct i2c_client *client) if (ret) goto error_power_off; - /* Set default mode to max resolution */ - imx219->mode = &supported_modes[0]; - - /* sensor doesn't enter LP-11 state upon power up until and unless + /* + * Sensor doesn't enter LP-11 state upon power up until and unless * streaming is started, so upon power up switch the modes to: * streaming -> standby */ - ret = imx219_write_reg(imx219, IMX219_REG_MODE_SELECT, - IMX219_REG_VALUE_08BIT, IMX219_MODE_STREAMING); + ret = cci_write(imx219->regmap, IMX219_REG_MODE_SELECT, + IMX219_MODE_STREAMING, NULL); if (ret < 0) goto error_power_off; + usleep_range(100, 110); /* put sensor back to standby mode */ - ret = imx219_write_reg(imx219, IMX219_REG_MODE_SELECT, - IMX219_REG_VALUE_08BIT, IMX219_MODE_STANDBY); + ret = cci_write(imx219->regmap, IMX219_REG_MODE_SELECT, + IMX219_MODE_STANDBY, NULL); if (ret < 0) goto error_power_off; + usleep_range(100, 110); ret = imx219_init_controls(imx219); @@ -1468,7 +1242,6 @@ static const struct of_device_id imx219_dt_ids[] = { MODULE_DEVICE_TABLE(of, imx219_dt_ids); static const struct dev_pm_ops imx219_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(imx219_suspend, imx219_resume) SET_RUNTIME_PM_OPS(imx219_power_off, imx219_power_on, NULL) }; |