diff options
Diffstat (limited to 'drivers/media/i2c/og01a1b.c')
| -rw-r--r-- | drivers/media/i2c/og01a1b.c | 1142 |
1 files changed, 1142 insertions, 0 deletions
diff --git a/drivers/media/i2c/og01a1b.c b/drivers/media/i2c/og01a1b.c new file mode 100644 index 000000000..1675f0460 --- /dev/null +++ b/drivers/media/i2c/og01a1b.c @@ -0,0 +1,1142 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2022 Intel Corporation. + +#include <linux/acpi.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/gpio/consumer.h> +#include <linux/i2c.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-fwnode.h> + +#define OG01A1B_LINK_FREQ_500MHZ 500000000ULL +#define OG01A1B_SCLK 120000000LL +#define OG01A1B_MCLK 19200000 +#define OG01A1B_DATA_LANES 2 + +#define OG01A1B_REG_CHIP_ID CCI_REG24(0x300a) +#define OG01A1B_CHIP_ID 0x470141 + +#define OG01A1B_REG_MODE_SELECT CCI_REG8(0x0100) +#define OG01A1B_MODE_STANDBY 0x00 +#define OG01A1B_MODE_STREAMING 0x01 + +/* vertical-timings from sensor */ +#define OG01A1B_REG_VTS CCI_REG16(0x380e) +#define OG01A1B_VTS_120FPS 0x0498 +#define OG01A1B_VTS_120FPS_MIN 0x0498 +#define OG01A1B_VTS_MAX 0x7fff + +/* horizontal-timings from sensor */ +#define OG01A1B_REG_HTS CCI_REG16(0x380c) + +/* Exposure controls from sensor */ +#define OG01A1B_REG_EXPOSURE CCI_REG16(0x3501) +#define OG01A1B_EXPOSURE_MIN 1 +#define OG01A1B_EXPOSURE_MAX_MARGIN 14 +#define OG01A1B_EXPOSURE_STEP 1 + +/* Analog gain controls from sensor */ +#define OG01A1B_REG_ANALOG_GAIN CCI_REG16(0x3508) +#define OG01A1B_ANAL_GAIN_MIN 16 +#define OG01A1B_ANAL_GAIN_MAX 248 /* Max = 15.5x */ +#define OG01A1B_ANAL_GAIN_STEP 1 + +/* Digital gain controls from sensor */ +#define OG01A1B_REG_DIG_GAIN CCI_REG24(0x350a) +#define OG01A1B_DGTL_GAIN_MIN 1024 +#define OG01A1B_DGTL_GAIN_MAX 16384 /* Max = 16x */ +#define OG01A1B_DGTL_GAIN_STEP 1 +#define OG01A1B_DGTL_GAIN_DEFAULT 1024 + +/* Test Pattern Control */ +#define OG01A1B_REG_TEST_PATTERN CCI_REG8(0x5100) +#define OG01A1B_TEST_PATTERN_ENABLE BIT(7) +#define OG01A1B_TEST_PATTERN_BAR_SHIFT 2 + +#define to_og01a1b(_sd) container_of(_sd, struct og01a1b, sd) + +enum { + OG01A1B_LINK_FREQ_1000MBPS, +}; + +struct og01a1b_reg_list { + const struct cci_reg_sequence *regs; + u32 num_of_regs; +}; + +struct og01a1b_link_freq_config { + const struct og01a1b_reg_list reg_list; +}; + +struct og01a1b_mode { + /* Frame width in pixels */ + u32 width; + + /* Frame height in pixels */ + u32 height; + + /* Horizontal timining size */ + u32 hts; + + /* Default vertical timining size */ + u32 vts_def; + + /* Min vertical timining size */ + u32 vts_min; + + /* Link frequency needed for this resolution */ + u32 link_freq_index; + + /* Sensor register settings for this resolution */ + const struct og01a1b_reg_list reg_list; +}; + +static const u32 og01a1b_mbus_formats[] = { + MEDIA_BUS_FMT_Y10_1X10, + MEDIA_BUS_FMT_Y8_1X8, +}; + +static const struct cci_reg_sequence mipi_data_rate_1000mbps[] = { + { CCI_REG8(0x0103), 0x01 }, + { CCI_REG8(0x0303), 0x02 }, + { CCI_REG8(0x0304), 0x00 }, + { CCI_REG8(0x0305), 0xd2 }, + { CCI_REG8(0x0323), 0x02 }, + { CCI_REG8(0x0324), 0x01 }, + { CCI_REG8(0x0325), 0x77 }, +}; + +static const struct cci_reg_sequence mode_1280x1024_regs[] = { + { CCI_REG8(0x0300), 0x0a }, + { CCI_REG8(0x0301), 0x29 }, + { CCI_REG8(0x0302), 0x31 }, + { CCI_REG8(0x0303), 0x02 }, + { CCI_REG8(0x0304), 0x00 }, + { CCI_REG8(0x0305), 0xd2 }, + { CCI_REG8(0x0306), 0x00 }, + { CCI_REG8(0x0307), 0x01 }, + { CCI_REG8(0x0308), 0x02 }, + { CCI_REG8(0x0309), 0x00 }, + { CCI_REG8(0x0310), 0x00 }, + { CCI_REG8(0x0311), 0x00 }, + { CCI_REG8(0x0312), 0x07 }, + { CCI_REG8(0x0313), 0x00 }, + { CCI_REG8(0x0314), 0x00 }, + { CCI_REG8(0x0315), 0x00 }, + { CCI_REG8(0x0320), 0x02 }, + { CCI_REG8(0x0321), 0x01 }, + { CCI_REG8(0x0322), 0x01 }, + { CCI_REG8(0x0323), 0x02 }, + { CCI_REG8(0x0324), 0x01 }, + { CCI_REG8(0x0325), 0x77 }, + { CCI_REG8(0x0326), 0xce }, + { CCI_REG8(0x0327), 0x04 }, + { CCI_REG8(0x0329), 0x02 }, + { CCI_REG8(0x032a), 0x04 }, + { CCI_REG8(0x032b), 0x04 }, + { CCI_REG8(0x032c), 0x02 }, + { CCI_REG8(0x032d), 0x01 }, + { CCI_REG8(0x032e), 0x00 }, + { CCI_REG8(0x300d), 0x02 }, + { CCI_REG8(0x300e), 0x04 }, + { CCI_REG8(0x3021), 0x08 }, + { CCI_REG8(0x301e), 0x03 }, + { CCI_REG8(0x3103), 0x00 }, + { CCI_REG8(0x3106), 0x08 }, + { CCI_REG8(0x3107), 0x40 }, + { CCI_REG8(0x3216), 0x01 }, + { CCI_REG8(0x3217), 0x00 }, + { CCI_REG8(0x3218), 0xc0 }, + { CCI_REG8(0x3219), 0x55 }, + { CCI_REG8(0x3500), 0x00 }, + { CCI_REG8(0x3501), 0x04 }, + { CCI_REG8(0x3502), 0x8a }, + { CCI_REG8(0x3506), 0x01 }, + { CCI_REG8(0x3507), 0x72 }, + { CCI_REG8(0x3508), 0x01 }, + { CCI_REG8(0x3509), 0x00 }, + { CCI_REG8(0x350a), 0x01 }, + { CCI_REG8(0x350b), 0x00 }, + { CCI_REG8(0x350c), 0x00 }, + { CCI_REG8(0x3541), 0x00 }, + { CCI_REG8(0x3542), 0x40 }, + { CCI_REG8(0x3605), 0xe0 }, + { CCI_REG8(0x3606), 0x41 }, + { CCI_REG8(0x3614), 0x20 }, + { CCI_REG8(0x3620), 0x0b }, + { CCI_REG8(0x3630), 0x07 }, + { CCI_REG8(0x3636), 0xa0 }, + { CCI_REG8(0x3637), 0xf9 }, + { CCI_REG8(0x3638), 0x09 }, + { CCI_REG8(0x3639), 0x38 }, + { CCI_REG8(0x363f), 0x09 }, + { CCI_REG8(0x3640), 0x17 }, + { CCI_REG8(0x3665), 0x80 }, + { CCI_REG8(0x3670), 0x68 }, + { CCI_REG8(0x3674), 0x00 }, + { CCI_REG8(0x3677), 0x3f }, + { CCI_REG8(0x3679), 0x00 }, + { CCI_REG8(0x369f), 0x19 }, + { CCI_REG8(0x36a0), 0x03 }, + { CCI_REG8(0x36a2), 0x19 }, + { CCI_REG8(0x36a3), 0x03 }, + { CCI_REG8(0x370d), 0x66 }, + { CCI_REG8(0x370f), 0x00 }, + { CCI_REG8(0x3710), 0x03 }, + { CCI_REG8(0x3715), 0x03 }, + { CCI_REG8(0x3716), 0x03 }, + { CCI_REG8(0x3717), 0x06 }, + { CCI_REG8(0x3733), 0x00 }, + { CCI_REG8(0x3778), 0x00 }, + { CCI_REG8(0x37a8), 0x0f }, + { CCI_REG8(0x37a9), 0x01 }, + { CCI_REG8(0x37aa), 0x07 }, + { CCI_REG8(0x37bd), 0x1c }, + { CCI_REG8(0x37c1), 0x2f }, + { CCI_REG8(0x37c3), 0x09 }, + { CCI_REG8(0x37c8), 0x1d }, + { CCI_REG8(0x37ca), 0x30 }, + { CCI_REG8(0x37df), 0x00 }, + { CCI_REG8(0x3800), 0x00 }, + { CCI_REG8(0x3801), 0x00 }, + { CCI_REG8(0x3802), 0x00 }, + { CCI_REG8(0x3803), 0x00 }, + { CCI_REG8(0x3804), 0x05 }, + { CCI_REG8(0x3805), 0x0f }, + { CCI_REG8(0x3806), 0x04 }, + { CCI_REG8(0x3807), 0x0f }, + { CCI_REG8(0x3808), 0x05 }, + { CCI_REG8(0x3809), 0x00 }, + { CCI_REG8(0x380a), 0x04 }, + { CCI_REG8(0x380b), 0x00 }, + { CCI_REG8(0x380c), 0x03 }, + { CCI_REG8(0x380d), 0x50 }, + { CCI_REG8(0x380e), 0x04 }, + { CCI_REG8(0x380f), 0x98 }, + { CCI_REG8(0x3810), 0x00 }, + { CCI_REG8(0x3811), 0x08 }, + { CCI_REG8(0x3812), 0x00 }, + { CCI_REG8(0x3813), 0x08 }, + { CCI_REG8(0x3814), 0x11 }, + { CCI_REG8(0x3815), 0x11 }, + { CCI_REG8(0x3820), 0x40 }, + { CCI_REG8(0x3821), 0x04 }, + { CCI_REG8(0x3826), 0x00 }, + { CCI_REG8(0x3827), 0x00 }, + { CCI_REG8(0x382a), 0x08 }, + { CCI_REG8(0x382b), 0x52 }, + { CCI_REG8(0x382d), 0xba }, + { CCI_REG8(0x383d), 0x14 }, + { CCI_REG8(0x384a), 0xa2 }, + { CCI_REG8(0x3866), 0x0e }, + { CCI_REG8(0x3867), 0x07 }, + { CCI_REG8(0x3884), 0x00 }, + { CCI_REG8(0x3885), 0x08 }, + { CCI_REG8(0x3893), 0x68 }, + { CCI_REG8(0x3894), 0x2a }, + { CCI_REG8(0x3898), 0x00 }, + { CCI_REG8(0x3899), 0x31 }, + { CCI_REG8(0x389a), 0x04 }, + { CCI_REG8(0x389b), 0x00 }, + { CCI_REG8(0x389c), 0x0b }, + { CCI_REG8(0x389d), 0xad }, + { CCI_REG8(0x389f), 0x08 }, + { CCI_REG8(0x38a0), 0x00 }, + { CCI_REG8(0x38a1), 0x00 }, + { CCI_REG8(0x38a8), 0x70 }, + { CCI_REG8(0x38ac), 0xea }, + { CCI_REG8(0x38b2), 0x00 }, + { CCI_REG8(0x38b3), 0x08 }, + { CCI_REG8(0x38bc), 0x20 }, + { CCI_REG8(0x38c4), 0x0c }, + { CCI_REG8(0x38c5), 0x3a }, + { CCI_REG8(0x38c7), 0x3a }, + { CCI_REG8(0x38e1), 0xc0 }, + { CCI_REG8(0x38ec), 0x3c }, + { CCI_REG8(0x38f0), 0x09 }, + { CCI_REG8(0x38f1), 0x6f }, + { CCI_REG8(0x38fe), 0x3c }, + { CCI_REG8(0x391e), 0x00 }, + { CCI_REG8(0x391f), 0x00 }, + { CCI_REG8(0x3920), 0xa5 }, + { CCI_REG8(0x3921), 0x00 }, + { CCI_REG8(0x3922), 0x00 }, + { CCI_REG8(0x3923), 0x00 }, + { CCI_REG8(0x3924), 0x05 }, + { CCI_REG8(0x3925), 0x00 }, + { CCI_REG8(0x3926), 0x00 }, + { CCI_REG8(0x3927), 0x00 }, + { CCI_REG8(0x3928), 0x1a }, + { CCI_REG8(0x3929), 0x01 }, + { CCI_REG8(0x392a), 0xb4 }, + { CCI_REG8(0x392b), 0x00 }, + { CCI_REG8(0x392c), 0x10 }, + { CCI_REG8(0x392f), 0x40 }, + { CCI_REG8(0x4000), 0xcf }, + { CCI_REG8(0x4003), 0x40 }, + { CCI_REG8(0x4008), 0x00 }, + { CCI_REG8(0x4009), 0x07 }, + { CCI_REG8(0x400a), 0x02 }, + { CCI_REG8(0x400b), 0x54 }, + { CCI_REG8(0x400c), 0x00 }, + { CCI_REG8(0x400d), 0x07 }, + { CCI_REG8(0x4010), 0xc0 }, + { CCI_REG8(0x4012), 0x02 }, + { CCI_REG8(0x4014), 0x04 }, + { CCI_REG8(0x4015), 0x04 }, + { CCI_REG8(0x4017), 0x02 }, + { CCI_REG8(0x4042), 0x01 }, + { CCI_REG8(0x4306), 0x04 }, + { CCI_REG8(0x4307), 0x12 }, + { CCI_REG8(0x4509), 0x00 }, + { CCI_REG8(0x450b), 0x83 }, + { CCI_REG8(0x4604), 0x68 }, + { CCI_REG8(0x4608), 0x0a }, + { CCI_REG8(0x4700), 0x06 }, + { CCI_REG8(0x4800), 0x64 }, + { CCI_REG8(0x481b), 0x3c }, + { CCI_REG8(0x4825), 0x32 }, + { CCI_REG8(0x4833), 0x18 }, + { CCI_REG8(0x4837), 0x0f }, + { CCI_REG8(0x4850), 0x40 }, + { CCI_REG8(0x4860), 0x00 }, + { CCI_REG8(0x4861), 0xec }, + { CCI_REG8(0x4864), 0x00 }, + { CCI_REG8(0x4883), 0x00 }, + { CCI_REG8(0x4888), 0x90 }, + { CCI_REG8(0x4889), 0x05 }, + { CCI_REG8(0x488b), 0x04 }, + { CCI_REG8(0x4f00), 0x04 }, + { CCI_REG8(0x4f10), 0x04 }, + { CCI_REG8(0x4f21), 0x01 }, + { CCI_REG8(0x4f22), 0x40 }, + { CCI_REG8(0x4f23), 0x44 }, + { CCI_REG8(0x4f24), 0x51 }, + { CCI_REG8(0x4f25), 0x41 }, + { CCI_REG8(0x5000), 0x1f }, + { CCI_REG8(0x500a), 0x00 }, + { CCI_REG8(0x5100), 0x00 }, + { CCI_REG8(0x5111), 0x20 }, + { CCI_REG8(0x3020), 0x20 }, + { CCI_REG8(0x3613), 0x03 }, + { CCI_REG8(0x38c9), 0x02 }, + { CCI_REG8(0x5304), 0x01 }, + { CCI_REG8(0x3620), 0x08 }, + { CCI_REG8(0x3639), 0x58 }, + { CCI_REG8(0x363a), 0x10 }, + { CCI_REG8(0x3674), 0x04 }, + { CCI_REG8(0x3780), 0xff }, + { CCI_REG8(0x3781), 0xff }, + { CCI_REG8(0x3782), 0x00 }, + { CCI_REG8(0x3783), 0x01 }, + { CCI_REG8(0x3798), 0xa3 }, + { CCI_REG8(0x37aa), 0x10 }, + { CCI_REG8(0x38a8), 0xf0 }, + { CCI_REG8(0x38c4), 0x09 }, + { CCI_REG8(0x38c5), 0xb0 }, + { CCI_REG8(0x38df), 0x80 }, + { CCI_REG8(0x38ff), 0x05 }, + { CCI_REG8(0x4010), 0xf1 }, + { CCI_REG8(0x4011), 0x70 }, + { CCI_REG8(0x3667), 0x80 }, + { CCI_REG8(0x4d00), 0x4a }, + { CCI_REG8(0x4d01), 0x18 }, + { CCI_REG8(0x4d02), 0xbb }, + { CCI_REG8(0x4d03), 0xde }, + { CCI_REG8(0x4d04), 0x93 }, + { CCI_REG8(0x4d05), 0xff }, + { CCI_REG8(0x4d09), 0x0a }, + { CCI_REG8(0x37aa), 0x16 }, + { CCI_REG8(0x3606), 0x42 }, + { CCI_REG8(0x3605), 0x00 }, + { CCI_REG8(0x36a2), 0x17 }, + { CCI_REG8(0x300d), 0x0a }, + { CCI_REG8(0x4d00), 0x4d }, + { CCI_REG8(0x4d01), 0x95 }, + { CCI_REG8(0x3d8c), 0x70 }, + { CCI_REG8(0x3d8d), 0xe9 }, + { CCI_REG8(0x5300), 0x00 }, + { CCI_REG8(0x5301), 0x10 }, + { CCI_REG8(0x5302), 0x00 }, + { CCI_REG8(0x5303), 0xe3 }, + { CCI_REG8(0x3d88), 0x00 }, + { CCI_REG8(0x3d89), 0x10 }, + { CCI_REG8(0x3d8a), 0x00 }, + { CCI_REG8(0x3d8b), 0xe3 }, + { CCI_REG8(0x4f22), 0x00 }, +}; + +static const char * const og01a1b_test_pattern_menu[] = { + "Disabled", + "Standard Color Bar", + "Top-Bottom Darker Color Bar", + "Right-Left Darker Color Bar", + "Bottom-Top Darker Color Bar" +}; + +static const s64 link_freq_menu_items[] = { + OG01A1B_LINK_FREQ_500MHZ, +}; + +static const struct og01a1b_link_freq_config link_freq_configs[] = { + [OG01A1B_LINK_FREQ_1000MBPS] = { + .reg_list = { + .num_of_regs = ARRAY_SIZE(mipi_data_rate_1000mbps), + .regs = mipi_data_rate_1000mbps, + } + } +}; + +static const struct og01a1b_mode supported_modes[] = { + { + .width = 1280, + .height = 1024, + .hts = 848, + .vts_def = OG01A1B_VTS_120FPS, + .vts_min = OG01A1B_VTS_120FPS_MIN, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mode_1280x1024_regs), + .regs = mode_1280x1024_regs, + }, + .link_freq_index = OG01A1B_LINK_FREQ_1000MBPS, + }, +}; + +struct og01a1b { + struct device *dev; + struct regmap *regmap; + struct clk *xvclk; + struct gpio_desc *reset_gpio; + struct regulator *avdd; + struct regulator *dovdd; + struct regulator *dvdd; + + struct v4l2_subdev sd; + struct media_pad pad; + struct v4l2_ctrl_handler ctrl_handler; + + /* V4L2 Controls */ + struct v4l2_ctrl *link_freq; + struct v4l2_ctrl *pixel_rate; + struct v4l2_ctrl *vblank; + struct v4l2_ctrl *hblank; + struct v4l2_ctrl *exposure; + + /* Current mode */ + const struct og01a1b_mode *cur_mode; + + /* Selected media bus format output */ + u32 code; +}; + +static u64 to_pixel_rate(u32 f_index, u32 bpp) +{ + u64 pixel_rate = link_freq_menu_items[f_index] * 2 * OG01A1B_DATA_LANES; + + do_div(pixel_rate, bpp); + + return pixel_rate; +} + +static u64 to_pixels_per_line(u32 hts, u32 f_index, u32 bpp) +{ + u64 ppl = hts * to_pixel_rate(f_index, bpp); + + do_div(ppl, OG01A1B_SCLK); + + return ppl; +} + +static int og01a1b_test_pattern(struct og01a1b *og01a1b, u32 pattern) +{ + if (pattern) + pattern = (pattern - 1) << OG01A1B_TEST_PATTERN_BAR_SHIFT | + OG01A1B_TEST_PATTERN_ENABLE; + + return cci_write(og01a1b->regmap, OG01A1B_REG_TEST_PATTERN, + pattern, NULL); +} + +static int og01a1b_set_ctrl(struct v4l2_ctrl *ctrl) +{ + struct og01a1b *og01a1b = container_of(ctrl->handler, + struct og01a1b, ctrl_handler); + s64 exposure_max; + int ret = 0; + + /* Propagate change of current control to all related controls */ + if (ctrl->id == V4L2_CID_VBLANK) { + /* Update max exposure while meeting expected vblanking */ + exposure_max = og01a1b->cur_mode->height + ctrl->val - + OG01A1B_EXPOSURE_MAX_MARGIN; + __v4l2_ctrl_modify_range(og01a1b->exposure, + og01a1b->exposure->minimum, + exposure_max, og01a1b->exposure->step, + exposure_max); + } + + /* V4L2 controls values will be applied only when power is already up */ + if (!pm_runtime_get_if_in_use(og01a1b->dev)) + return 0; + + switch (ctrl->id) { + case V4L2_CID_ANALOGUE_GAIN: + ret = cci_write(og01a1b->regmap, OG01A1B_REG_ANALOG_GAIN, + ctrl->val << 4, NULL); + break; + + case V4L2_CID_DIGITAL_GAIN: + ret = cci_write(og01a1b->regmap, OG01A1B_REG_DIG_GAIN, + ctrl->val << 6, NULL); + break; + + case V4L2_CID_EXPOSURE: + ret = cci_write(og01a1b->regmap, OG01A1B_REG_EXPOSURE, + ctrl->val, NULL); + break; + + case V4L2_CID_VBLANK: + ret = cci_write(og01a1b->regmap, OG01A1B_REG_VTS, + og01a1b->cur_mode->height + ctrl->val, NULL); + break; + + case V4L2_CID_TEST_PATTERN: + ret = og01a1b_test_pattern(og01a1b, ctrl->val); + break; + + default: + ret = -EINVAL; + break; + } + + pm_runtime_put(og01a1b->dev); + + return ret; +} + +static const struct v4l2_ctrl_ops og01a1b_ctrl_ops = { + .s_ctrl = og01a1b_set_ctrl, +}; + +static int og01a1b_init_controls(struct og01a1b *og01a1b) +{ + struct v4l2_ctrl_handler *ctrl_hdlr; + s64 exposure_max, h_blank; + u32 bpp; + int ret; + + ctrl_hdlr = &og01a1b->ctrl_handler; + ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8); + if (ret) + return ret; + + og01a1b->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, + &og01a1b_ctrl_ops, + V4L2_CID_LINK_FREQ, + ARRAY_SIZE + (link_freq_menu_items) - 1, + 0, link_freq_menu_items); + if (og01a1b->link_freq) + og01a1b->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + bpp = (og01a1b->code == MEDIA_BUS_FMT_Y10_1X10 ? 10 : 8); + og01a1b->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &og01a1b_ctrl_ops, + V4L2_CID_PIXEL_RATE, 0, + to_pixel_rate(OG01A1B_LINK_FREQ_1000MBPS, bpp), + 1, + to_pixel_rate(OG01A1B_LINK_FREQ_1000MBPS, bpp)); + og01a1b->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &og01a1b_ctrl_ops, + V4L2_CID_VBLANK, + og01a1b->cur_mode->vts_min - + og01a1b->cur_mode->height, + OG01A1B_VTS_MAX - + og01a1b->cur_mode->height, 1, + og01a1b->cur_mode->vts_def - + og01a1b->cur_mode->height); + h_blank = to_pixels_per_line(og01a1b->cur_mode->hts, + og01a1b->cur_mode->link_freq_index, bpp) - + og01a1b->cur_mode->width; + og01a1b->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &og01a1b_ctrl_ops, + V4L2_CID_HBLANK, h_blank, h_blank, + 1, h_blank); + if (og01a1b->hblank) + og01a1b->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + v4l2_ctrl_new_std(ctrl_hdlr, &og01a1b_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, + OG01A1B_ANAL_GAIN_MIN, OG01A1B_ANAL_GAIN_MAX, + OG01A1B_ANAL_GAIN_STEP, OG01A1B_ANAL_GAIN_MIN); + v4l2_ctrl_new_std(ctrl_hdlr, &og01a1b_ctrl_ops, V4L2_CID_DIGITAL_GAIN, + OG01A1B_DGTL_GAIN_MIN, OG01A1B_DGTL_GAIN_MAX, + OG01A1B_DGTL_GAIN_STEP, OG01A1B_DGTL_GAIN_DEFAULT); + exposure_max = (og01a1b->cur_mode->vts_def - + OG01A1B_EXPOSURE_MAX_MARGIN); + og01a1b->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &og01a1b_ctrl_ops, + V4L2_CID_EXPOSURE, + OG01A1B_EXPOSURE_MIN, + exposure_max, + OG01A1B_EXPOSURE_STEP, + exposure_max); + v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &og01a1b_ctrl_ops, + V4L2_CID_TEST_PATTERN, + ARRAY_SIZE(og01a1b_test_pattern_menu) - 1, + 0, 0, og01a1b_test_pattern_menu); + + if (ctrl_hdlr->error) + return ctrl_hdlr->error; + + og01a1b->sd.ctrl_handler = ctrl_hdlr; + + return 0; +} + +static void og01a1b_update_pad_format(const struct og01a1b_mode *mode, + struct v4l2_mbus_framefmt *fmt) +{ + fmt->width = mode->width; + fmt->height = mode->height; + fmt->field = V4L2_FIELD_NONE; +} + +static int og01a1b_enable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, u32 pad, + u64 streams_mask) +{ + struct og01a1b *og01a1b = to_og01a1b(sd); + unsigned int link_freq_index = og01a1b->cur_mode->link_freq_index; + const struct og01a1b_reg_list *reg_list; + int ret; + + ret = pm_runtime_resume_and_get(og01a1b->dev); + if (ret) + return ret; + + reg_list = &link_freq_configs[link_freq_index].reg_list; + ret = cci_multi_reg_write(og01a1b->regmap, reg_list->regs, + reg_list->num_of_regs, NULL); + if (ret) { + dev_err(og01a1b->dev, "failed to set plls: %d\n", ret); + goto error; + } + + reg_list = &og01a1b->cur_mode->reg_list; + ret = cci_multi_reg_write(og01a1b->regmap, reg_list->regs, + reg_list->num_of_regs, NULL); + if (ret) { + dev_err(og01a1b->dev, "failed to set mode: %d\n", ret); + goto error; + } + + ret = cci_write(og01a1b->regmap, CCI_REG8(0x3662), + (og01a1b->code == MEDIA_BUS_FMT_Y10_1X10 ? 0x4 : 0x6), + NULL); + if (ret) { + dev_err(og01a1b->dev, "failed to set output format: %d\n", ret); + goto error; + } + + ret = __v4l2_ctrl_handler_setup(og01a1b->sd.ctrl_handler); + if (ret) + goto error; + + ret = cci_write(og01a1b->regmap, OG01A1B_REG_MODE_SELECT, + OG01A1B_MODE_STREAMING, NULL); + if (ret) { + dev_err(og01a1b->dev, "failed to start streaming: %d\n", ret); + goto error; + } + + return 0; + +error: + pm_runtime_put_autosuspend(og01a1b->dev); + + return ret; +} + +static int og01a1b_disable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, u32 pad, + u64 streams_mask) +{ + struct og01a1b *og01a1b = to_og01a1b(sd); + int ret; + + ret = cci_write(og01a1b->regmap, OG01A1B_REG_MODE_SELECT, + OG01A1B_MODE_STANDBY, NULL); + if (ret) + dev_err(og01a1b->dev, "failed to stop streaming: %d\n", ret); + + pm_runtime_put_autosuspend(og01a1b->dev); + + return ret; +} + +static int og01a1b_set_format(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_format *fmt) +{ + struct og01a1b *og01a1b = to_og01a1b(sd); + const struct og01a1b_mode *mode; + s32 vblank_def, h_blank, bpp; + + mode = v4l2_find_nearest_size(supported_modes, + ARRAY_SIZE(supported_modes), width, + height, fmt->format.width, + fmt->format.height); + + og01a1b_update_pad_format(mode, &fmt->format); + + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) + goto set_format; + + bpp = (fmt->format.code == MEDIA_BUS_FMT_Y10_1X10 ? 10 : 8); + __v4l2_ctrl_s_ctrl(og01a1b->link_freq, mode->link_freq_index); + __v4l2_ctrl_s_ctrl_int64(og01a1b->pixel_rate, + to_pixel_rate(mode->link_freq_index, bpp)); + + /* Update limits and set FPS to default */ + vblank_def = mode->vts_def - mode->height; + __v4l2_ctrl_modify_range(og01a1b->vblank, + mode->vts_min - mode->height, + OG01A1B_VTS_MAX - mode->height, 1, vblank_def); + __v4l2_ctrl_s_ctrl(og01a1b->vblank, vblank_def); + h_blank = to_pixels_per_line(mode->hts, mode->link_freq_index, + bpp) - mode->width; + __v4l2_ctrl_modify_range(og01a1b->hblank, h_blank, h_blank, 1, h_blank); + + og01a1b->cur_mode = mode; + og01a1b->code = fmt->format.code; + +set_format: + *v4l2_subdev_state_get_format(sd_state, fmt->pad) = fmt->format; + + return 0; +} + +static int og01a1b_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_mbus_code_enum *code) +{ + if (code->index > ARRAY_SIZE(og01a1b_mbus_formats) - 1) + return -EINVAL; + + code->code = og01a1b_mbus_formats[code->index]; + + return 0; +} + +static int og01a1b_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_frame_size_enum *fse) +{ + if (fse->index >= ARRAY_SIZE(supported_modes)) + return -EINVAL; + + if (fse->code != MEDIA_BUS_FMT_Y10_1X10 && + fse->code != MEDIA_BUS_FMT_Y8_1X8) + 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 og01a1b_init_state(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state) +{ + struct og01a1b *og01a1b = to_og01a1b(sd); + struct v4l2_subdev_format fmt = { + .which = V4L2_SUBDEV_FORMAT_TRY, + .pad = 0, + .format = { + .width = og01a1b->cur_mode->width, + .height = og01a1b->cur_mode->height, + .code = og01a1b->code, + }, + }; + + og01a1b_set_format(sd, state, &fmt); + + return 0; +} + +static const struct v4l2_subdev_video_ops og01a1b_video_ops = { + .s_stream = v4l2_subdev_s_stream_helper, +}; + +static const struct v4l2_subdev_pad_ops og01a1b_pad_ops = { + .set_fmt = og01a1b_set_format, + .get_fmt = v4l2_subdev_get_fmt, + .enum_mbus_code = og01a1b_enum_mbus_code, + .enum_frame_size = og01a1b_enum_frame_size, + .enable_streams = og01a1b_enable_streams, + .disable_streams = og01a1b_disable_streams, +}; + +static const struct v4l2_subdev_ops og01a1b_subdev_ops = { + .video = &og01a1b_video_ops, + .pad = &og01a1b_pad_ops, +}; + +static const struct media_entity_operations og01a1b_subdev_entity_ops = { + .link_validate = v4l2_subdev_link_validate, +}; + +static const struct v4l2_subdev_internal_ops og01a1b_internal_ops = { + .init_state = og01a1b_init_state, +}; + +static int og01a1b_identify_module(struct og01a1b *og01a1b) +{ + int ret; + u64 val; + + ret = cci_read(og01a1b->regmap, OG01A1B_REG_CHIP_ID, &val, NULL); + if (ret) + return ret; + + if (val != OG01A1B_CHIP_ID) { + dev_err(og01a1b->dev, "chip id mismatch: %x!=%llx", + OG01A1B_CHIP_ID, val); + return -ENXIO; + } + + return 0; +} + +static int og01a1b_check_hwcfg(struct og01a1b *og01a1b) +{ + struct device *dev = og01a1b->dev; + struct fwnode_handle *ep; + struct fwnode_handle *fwnode = dev_fwnode(dev); + struct v4l2_fwnode_endpoint bus_cfg = { + .bus_type = V4L2_MBUS_CSI2_DPHY + }; + int ret; + unsigned int i, j; + + if (!fwnode) + return -ENXIO; + + ep = fwnode_graph_get_next_endpoint(fwnode, NULL); + if (!ep) + return -ENXIO; + + ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); + fwnode_handle_put(ep); + if (ret) + return ret; + + if (bus_cfg.bus.mipi_csi2.num_data_lanes != OG01A1B_DATA_LANES) { + dev_err(dev, "number of CSI2 data lanes %d is not supported", + bus_cfg.bus.mipi_csi2.num_data_lanes); + ret = -EINVAL; + goto check_hwcfg_error; + } + + if (!bus_cfg.nr_of_link_frequencies) { + dev_err(dev, "no link frequencies defined"); + ret = -EINVAL; + goto check_hwcfg_error; + } + + for (i = 0; i < ARRAY_SIZE(link_freq_menu_items); i++) { + for (j = 0; j < bus_cfg.nr_of_link_frequencies; j++) { + if (link_freq_menu_items[i] == + bus_cfg.link_frequencies[j]) + break; + } + + if (j == bus_cfg.nr_of_link_frequencies) { + dev_err(dev, "no link frequency %lld supported", + link_freq_menu_items[i]); + ret = -EINVAL; + goto check_hwcfg_error; + } + } + +check_hwcfg_error: + v4l2_fwnode_endpoint_free(&bus_cfg); + + return ret; +} + +/* Power/clock management functions */ +static int og01a1b_power_on(struct device *dev) +{ + unsigned long delay = DIV_ROUND_UP(8192UL * USEC_PER_SEC, OG01A1B_MCLK); + struct v4l2_subdev *sd = dev_get_drvdata(dev); + struct og01a1b *og01a1b = to_og01a1b(sd); + int ret; + + if (og01a1b->avdd) { + ret = regulator_enable(og01a1b->avdd); + if (ret) + return ret; + } + + if (og01a1b->dovdd) { + ret = regulator_enable(og01a1b->dovdd); + if (ret) + goto avdd_disable; + } + + if (og01a1b->dvdd) { + ret = regulator_enable(og01a1b->dvdd); + if (ret) + goto dovdd_disable; + } + + ret = clk_prepare_enable(og01a1b->xvclk); + if (ret) + goto dvdd_disable; + + gpiod_set_value_cansleep(og01a1b->reset_gpio, 0); + + if (og01a1b->reset_gpio) + usleep_range(5 * USEC_PER_MSEC, 6 * USEC_PER_MSEC); + else if (og01a1b->xvclk) + usleep_range(delay, 2 * delay); + + return 0; + +dvdd_disable: + if (og01a1b->dvdd) + regulator_disable(og01a1b->dvdd); +dovdd_disable: + if (og01a1b->dovdd) + regulator_disable(og01a1b->dovdd); +avdd_disable: + if (og01a1b->avdd) + regulator_disable(og01a1b->avdd); + + return ret; +} + +static int og01a1b_power_off(struct device *dev) +{ + unsigned long delay = DIV_ROUND_UP(512 * USEC_PER_SEC, OG01A1B_MCLK); + struct v4l2_subdev *sd = dev_get_drvdata(dev); + struct og01a1b *og01a1b = to_og01a1b(sd); + + if (og01a1b->xvclk) + usleep_range(delay, 2 * delay); + + clk_disable_unprepare(og01a1b->xvclk); + + gpiod_set_value_cansleep(og01a1b->reset_gpio, 1); + + if (og01a1b->dvdd) + regulator_disable(og01a1b->dvdd); + + if (og01a1b->dovdd) + regulator_disable(og01a1b->dovdd); + + if (og01a1b->avdd) + regulator_disable(og01a1b->avdd); + + return 0; +} + +static void og01a1b_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct og01a1b *og01a1b = to_og01a1b(sd); + + v4l2_async_unregister_subdev(sd); + v4l2_subdev_cleanup(&og01a1b->sd); + media_entity_cleanup(&sd->entity); + v4l2_ctrl_handler_free(sd->ctrl_handler); + pm_runtime_disable(og01a1b->dev); +} + +static int og01a1b_probe(struct i2c_client *client) +{ + struct og01a1b *og01a1b; + unsigned long freq; + int ret; + + og01a1b = devm_kzalloc(&client->dev, sizeof(*og01a1b), GFP_KERNEL); + if (!og01a1b) + return -ENOMEM; + + og01a1b->dev = &client->dev; + + v4l2_i2c_subdev_init(&og01a1b->sd, client, &og01a1b_subdev_ops); + + og01a1b->regmap = devm_cci_regmap_init_i2c(client, 16); + if (IS_ERR(og01a1b->regmap)) + return dev_err_probe(og01a1b->dev, PTR_ERR(og01a1b->regmap), + "failed to init CCI\n"); + + og01a1b->xvclk = devm_v4l2_sensor_clk_get(og01a1b->dev, NULL); + if (IS_ERR(og01a1b->xvclk)) + return dev_err_probe(og01a1b->dev, PTR_ERR(og01a1b->xvclk), + "failed to get xvclk clock\n"); + + freq = clk_get_rate(og01a1b->xvclk); + if (freq != OG01A1B_MCLK) + return dev_err_probe(og01a1b->dev, -EINVAL, + "external clock %lu is not supported", + freq); + + ret = og01a1b_check_hwcfg(og01a1b); + if (ret) { + dev_err(og01a1b->dev, "failed to check HW configuration: %d", + ret); + return ret; + } + + og01a1b->reset_gpio = devm_gpiod_get_optional(og01a1b->dev, "reset", + GPIOD_OUT_LOW); + if (IS_ERR(og01a1b->reset_gpio)) { + dev_err(og01a1b->dev, "cannot get reset GPIO\n"); + return PTR_ERR(og01a1b->reset_gpio); + } + + og01a1b->avdd = devm_regulator_get_optional(og01a1b->dev, "avdd"); + if (IS_ERR(og01a1b->avdd)) { + ret = PTR_ERR(og01a1b->avdd); + if (ret != -ENODEV) { + dev_err_probe(og01a1b->dev, ret, + "Failed to get 'avdd' regulator\n"); + return ret; + } + + og01a1b->avdd = NULL; + } + + og01a1b->dovdd = devm_regulator_get_optional(og01a1b->dev, "dovdd"); + if (IS_ERR(og01a1b->dovdd)) { + ret = PTR_ERR(og01a1b->dovdd); + if (ret != -ENODEV) { + dev_err_probe(og01a1b->dev, ret, + "Failed to get 'dovdd' regulator\n"); + return ret; + } + + og01a1b->dovdd = NULL; + } + + og01a1b->dvdd = devm_regulator_get_optional(og01a1b->dev, "dvdd"); + if (IS_ERR(og01a1b->dvdd)) { + ret = PTR_ERR(og01a1b->dvdd); + if (ret != -ENODEV) { + dev_err_probe(og01a1b->dev, ret, + "Failed to get 'dvdd' regulator\n"); + return ret; + } + + og01a1b->dvdd = NULL; + } + + /* The sensor must be powered on to read the CHIP_ID register */ + ret = og01a1b_power_on(og01a1b->dev); + if (ret) + return ret; + + ret = og01a1b_identify_module(og01a1b); + if (ret) { + dev_err(og01a1b->dev, "failed to find sensor: %d", ret); + goto power_off; + } + + og01a1b->cur_mode = &supported_modes[0]; + og01a1b->code = og01a1b_mbus_formats[0]; + ret = og01a1b_init_controls(og01a1b); + if (ret) { + dev_err(og01a1b->dev, "failed to init controls: %d", ret); + goto probe_error_v4l2_ctrl_handler_free; + } + + og01a1b->sd.state_lock = og01a1b->ctrl_handler.lock; + og01a1b->sd.internal_ops = &og01a1b_internal_ops; + og01a1b->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + og01a1b->sd.entity.ops = &og01a1b_subdev_entity_ops; + og01a1b->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; + og01a1b->pad.flags = MEDIA_PAD_FL_SOURCE; + ret = media_entity_pads_init(&og01a1b->sd.entity, 1, &og01a1b->pad); + if (ret) { + dev_err(og01a1b->dev, "failed to init entity pads: %d", ret); + goto probe_error_v4l2_ctrl_handler_free; + } + + ret = v4l2_subdev_init_finalize(&og01a1b->sd); + if (ret < 0) { + dev_err_probe(og01a1b->dev, ret, + "failed to finalize subdevice init\n"); + goto probe_error_media_entity_cleanup; + } + + ret = v4l2_async_register_subdev_sensor(&og01a1b->sd); + if (ret < 0) { + dev_err(og01a1b->dev, "failed to register V4L2 subdev: %d", + ret); + goto probe_error_v4l2_subdev_cleanup; + } + + /* Enable runtime PM and turn off the device */ + pm_runtime_set_active(og01a1b->dev); + pm_runtime_enable(og01a1b->dev); + pm_runtime_idle(og01a1b->dev); + + return 0; + +probe_error_v4l2_subdev_cleanup: + v4l2_subdev_cleanup(&og01a1b->sd); + +probe_error_media_entity_cleanup: + media_entity_cleanup(&og01a1b->sd.entity); + +probe_error_v4l2_ctrl_handler_free: + v4l2_ctrl_handler_free(og01a1b->sd.ctrl_handler); + +power_off: + og01a1b_power_off(og01a1b->dev); + + return ret; +} + +static const struct dev_pm_ops og01a1b_pm_ops = { + SET_RUNTIME_PM_OPS(og01a1b_power_off, og01a1b_power_on, NULL) +}; + +#ifdef CONFIG_ACPI +static const struct acpi_device_id og01a1b_acpi_ids[] = { + {"OVTI01AC"}, + {} +}; + +MODULE_DEVICE_TABLE(acpi, og01a1b_acpi_ids); +#endif + +static const struct of_device_id og01a1b_of_match[] = { + { .compatible = "ovti,og01a1b" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, og01a1b_of_match); + +static struct i2c_driver og01a1b_i2c_driver = { + .driver = { + .name = "og01a1b", + .pm = &og01a1b_pm_ops, + .acpi_match_table = ACPI_PTR(og01a1b_acpi_ids), + .of_match_table = og01a1b_of_match, + }, + .probe = og01a1b_probe, + .remove = og01a1b_remove, +}; + +module_i2c_driver(og01a1b_i2c_driver); + +MODULE_AUTHOR("Shawn Tu"); +MODULE_DESCRIPTION("OmniVision OG01A1B sensor driver"); +MODULE_LICENSE("GPL v2"); |