| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Jason Chen | 5910 | 92.47% | 2 | 12.50% |
| Krzysztof Kozlowski | 410 | 6.42% | 4 | 25.00% |
| Sakari Ailus | 49 | 0.77% | 5 | 31.25% |
| Tomi Valkeinen | 14 | 0.22% | 1 | 6.25% |
| Bingbu Cao | 5 | 0.08% | 1 | 6.25% |
| Umang Jain | 1 | 0.02% | 1 | 6.25% |
| Laurent Pinchart | 1 | 0.02% | 1 | 6.25% |
| Mauro Carvalho Chehab | 1 | 0.02% | 1 | 6.25% |
| Total | 6391 | 16 |
// SPDX-License-Identifier: GPL-2.0 // Copyright (C) 2018 Intel Corporation #include <linux/acpi.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/pm_runtime.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <asm/unaligned.h> #define IMX258_REG_VALUE_08BIT 1 #define IMX258_REG_VALUE_16BIT 2 #define IMX258_REG_MODE_SELECT 0x0100 #define IMX258_MODE_STANDBY 0x00 #define IMX258_MODE_STREAMING 0x01 /* Chip ID */ #define IMX258_REG_CHIP_ID 0x0016 #define IMX258_CHIP_ID 0x0258 /* V_TIMING internal */ #define IMX258_VTS_30FPS 0x0c50 #define IMX258_VTS_30FPS_2K 0x0638 #define IMX258_VTS_30FPS_VGA 0x034c #define IMX258_VTS_MAX 0xffff /*Frame Length Line*/ #define IMX258_FLL_MIN 0x08a6 #define IMX258_FLL_MAX 0xffff #define IMX258_FLL_STEP 1 #define IMX258_FLL_DEFAULT 0x0c98 /* HBLANK control - read only */ #define IMX258_PPL_DEFAULT 5352 /* Exposure control */ #define IMX258_REG_EXPOSURE 0x0202 #define IMX258_EXPOSURE_MIN 4 #define IMX258_EXPOSURE_STEP 1 #define IMX258_EXPOSURE_DEFAULT 0x640 #define IMX258_EXPOSURE_MAX 65535 /* Analog gain control */ #define IMX258_REG_ANALOG_GAIN 0x0204 #define IMX258_ANA_GAIN_MIN 0 #define IMX258_ANA_GAIN_MAX 480 #define IMX258_ANA_GAIN_STEP 1 #define IMX258_ANA_GAIN_DEFAULT 0x0 /* Digital gain control */ #define IMX258_REG_GR_DIGITAL_GAIN 0x020e #define IMX258_REG_R_DIGITAL_GAIN 0x0210 #define IMX258_REG_B_DIGITAL_GAIN 0x0212 #define IMX258_REG_GB_DIGITAL_GAIN 0x0214 #define IMX258_DGTL_GAIN_MIN 0 #define IMX258_DGTL_GAIN_MAX 4096 /* Max = 0xFFF */ #define IMX258_DGTL_GAIN_DEFAULT 1024 #define IMX258_DGTL_GAIN_STEP 1 /* HDR control */ #define IMX258_REG_HDR 0x0220 #define IMX258_HDR_ON BIT(0) #define IMX258_REG_HDR_RATIO 0x0222 #define IMX258_HDR_RATIO_MIN 0 #define IMX258_HDR_RATIO_MAX 5 #define IMX258_HDR_RATIO_STEP 1 #define IMX258_HDR_RATIO_DEFAULT 0x0 /* Test Pattern Control */ #define IMX258_REG_TEST_PATTERN 0x0600 /* Orientation */ #define REG_MIRROR_FLIP_CONTROL 0x0101 #define REG_CONFIG_MIRROR_FLIP 0x03 #define REG_CONFIG_FLIP_TEST_PATTERN 0x02 /* Input clock frequency in Hz */ #define IMX258_INPUT_CLOCK_FREQ 19200000 struct imx258_reg { u16 address; u8 val; }; struct imx258_reg_list { u32 num_of_regs; const struct imx258_reg *regs; }; /* Link frequency config */ struct imx258_link_freq_config { u32 pixels_per_line; /* PLL registers for this link frequency */ struct imx258_reg_list reg_list; }; /* Mode : resolution and related config&values */ struct imx258_mode { /* Frame width */ u32 width; /* Frame height */ u32 height; /* V-timing */ u32 vts_def; u32 vts_min; /* Index of Link frequency config to be used */ u32 link_freq_index; /* Default register values */ struct imx258_reg_list reg_list; }; /* 4208x3118 needs 1267Mbps/lane, 4 lanes */ static const struct imx258_reg mipi_data_rate_1267mbps[] = { { 0x0301, 0x05 }, { 0x0303, 0x02 }, { 0x0305, 0x03 }, { 0x0306, 0x00 }, { 0x0307, 0xC6 }, { 0x0309, 0x0A }, { 0x030B, 0x01 }, { 0x030D, 0x02 }, { 0x030E, 0x00 }, { 0x030F, 0xD8 }, { 0x0310, 0x00 }, { 0x0820, 0x13 }, { 0x0821, 0x4C }, { 0x0822, 0xCC }, { 0x0823, 0xCC }, }; static const struct imx258_reg mipi_data_rate_640mbps[] = { { 0x0301, 0x05 }, { 0x0303, 0x02 }, { 0x0305, 0x03 }, { 0x0306, 0x00 }, { 0x0307, 0x64 }, { 0x0309, 0x0A }, { 0x030B, 0x01 }, { 0x030D, 0x02 }, { 0x030E, 0x00 }, { 0x030F, 0xD8 }, { 0x0310, 0x00 }, { 0x0820, 0x0A }, { 0x0821, 0x00 }, { 0x0822, 0x00 }, { 0x0823, 0x00 }, }; static const struct imx258_reg mode_4208x3118_regs[] = { { 0x0136, 0x13 }, { 0x0137, 0x33 }, { 0x3051, 0x00 }, { 0x3052, 0x00 }, { 0x4E21, 0x14 }, { 0x6B11, 0xCF }, { 0x7FF0, 0x08 }, { 0x7FF1, 0x0F }, { 0x7FF2, 0x08 }, { 0x7FF3, 0x1B }, { 0x7FF4, 0x23 }, { 0x7FF5, 0x60 }, { 0x7FF6, 0x00 }, { 0x7FF7, 0x01 }, { 0x7FF8, 0x00 }, { 0x7FF9, 0x78 }, { 0x7FFA, 0x00 }, { 0x7FFB, 0x00 }, { 0x7FFC, 0x00 }, { 0x7FFD, 0x00 }, { 0x7FFE, 0x00 }, { 0x7FFF, 0x03 }, { 0x7F76, 0x03 }, { 0x7F77, 0xFE }, { 0x7FA8, 0x03 }, { 0x7FA9, 0xFE }, { 0x7B24, 0x81 }, { 0x7B25, 0x00 }, { 0x6564, 0x07 }, { 0x6B0D, 0x41 }, { 0x653D, 0x04 }, { 0x6B05, 0x8C }, { 0x6B06, 0xF9 }, { 0x6B08, 0x65 }, { 0x6B09, 0xFC }, { 0x6B0A, 0xCF }, { 0x6B0B, 0xD2 }, { 0x6700, 0x0E }, { 0x6707, 0x0E }, { 0x9104, 0x00 }, { 0x4648, 0x7F }, { 0x7420, 0x00 }, { 0x7421, 0x1C }, { 0x7422, 0x00 }, { 0x7423, 0xD7 }, { 0x5F04, 0x00 }, { 0x5F05, 0xED }, { 0x0112, 0x0A }, { 0x0113, 0x0A }, { 0x0114, 0x03 }, { 0x0342, 0x14 }, { 0x0343, 0xE8 }, { 0x0340, 0x0C }, { 0x0341, 0x50 }, { 0x0344, 0x00 }, { 0x0345, 0x00 }, { 0x0346, 0x00 }, { 0x0347, 0x00 }, { 0x0348, 0x10 }, { 0x0349, 0x6F }, { 0x034A, 0x0C }, { 0x034B, 0x2E }, { 0x0381, 0x01 }, { 0x0383, 0x01 }, { 0x0385, 0x01 }, { 0x0387, 0x01 }, { 0x0900, 0x00 }, { 0x0901, 0x11 }, { 0x0401, 0x00 }, { 0x0404, 0x00 }, { 0x0405, 0x10 }, { 0x0408, 0x00 }, { 0x0409, 0x00 }, { 0x040A, 0x00 }, { 0x040B, 0x00 }, { 0x040C, 0x10 }, { 0x040D, 0x70 }, { 0x040E, 0x0C }, { 0x040F, 0x30 }, { 0x3038, 0x00 }, { 0x303A, 0x00 }, { 0x303B, 0x10 }, { 0x300D, 0x00 }, { 0x034C, 0x10 }, { 0x034D, 0x70 }, { 0x034E, 0x0C }, { 0x034F, 0x30 }, { 0x0350, 0x01 }, { 0x0202, 0x0C }, { 0x0203, 0x46 }, { 0x0204, 0x00 }, { 0x0205, 0x00 }, { 0x020E, 0x01 }, { 0x020F, 0x00 }, { 0x0210, 0x01 }, { 0x0211, 0x00 }, { 0x0212, 0x01 }, { 0x0213, 0x00 }, { 0x0214, 0x01 }, { 0x0215, 0x00 }, { 0x7BCD, 0x00 }, { 0x94DC, 0x20 }, { 0x94DD, 0x20 }, { 0x94DE, 0x20 }, { 0x95DC, 0x20 }, { 0x95DD, 0x20 }, { 0x95DE, 0x20 }, { 0x7FB0, 0x00 }, { 0x9010, 0x3E }, { 0x9419, 0x50 }, { 0x941B, 0x50 }, { 0x9519, 0x50 }, { 0x951B, 0x50 }, { 0x3030, 0x00 }, { 0x3032, 0x00 }, { 0x0220, 0x00 }, }; static const struct imx258_reg mode_2104_1560_regs[] = { { 0x0136, 0x13 }, { 0x0137, 0x33 }, { 0x3051, 0x00 }, { 0x3052, 0x00 }, { 0x4E21, 0x14 }, { 0x6B11, 0xCF }, { 0x7FF0, 0x08 }, { 0x7FF1, 0x0F }, { 0x7FF2, 0x08 }, { 0x7FF3, 0x1B }, { 0x7FF4, 0x23 }, { 0x7FF5, 0x60 }, { 0x7FF6, 0x00 }, { 0x7FF7, 0x01 }, { 0x7FF8, 0x00 }, { 0x7FF9, 0x78 }, { 0x7FFA, 0x00 }, { 0x7FFB, 0x00 }, { 0x7FFC, 0x00 }, { 0x7FFD, 0x00 }, { 0x7FFE, 0x00 }, { 0x7FFF, 0x03 }, { 0x7F76, 0x03 }, { 0x7F77, 0xFE }, { 0x7FA8, 0x03 }, { 0x7FA9, 0xFE }, { 0x7B24, 0x81 }, { 0x7B25, 0x00 }, { 0x6564, 0x07 }, { 0x6B0D, 0x41 }, { 0x653D, 0x04 }, { 0x6B05, 0x8C }, { 0x6B06, 0xF9 }, { 0x6B08, 0x65 }, { 0x6B09, 0xFC }, { 0x6B0A, 0xCF }, { 0x6B0B, 0xD2 }, { 0x6700, 0x0E }, { 0x6707, 0x0E }, { 0x9104, 0x00 }, { 0x4648, 0x7F }, { 0x7420, 0x00 }, { 0x7421, 0x1C }, { 0x7422, 0x00 }, { 0x7423, 0xD7 }, { 0x5F04, 0x00 }, { 0x5F05, 0xED }, { 0x0112, 0x0A }, { 0x0113, 0x0A }, { 0x0114, 0x03 }, { 0x0342, 0x14 }, { 0x0343, 0xE8 }, { 0x0340, 0x06 }, { 0x0341, 0x38 }, { 0x0344, 0x00 }, { 0x0345, 0x00 }, { 0x0346, 0x00 }, { 0x0347, 0x00 }, { 0x0348, 0x10 }, { 0x0349, 0x6F }, { 0x034A, 0x0C }, { 0x034B, 0x2E }, { 0x0381, 0x01 }, { 0x0383, 0x01 }, { 0x0385, 0x01 }, { 0x0387, 0x01 }, { 0x0900, 0x01 }, { 0x0901, 0x12 }, { 0x0401, 0x01 }, { 0x0404, 0x00 }, { 0x0405, 0x20 }, { 0x0408, 0x00 }, { 0x0409, 0x02 }, { 0x040A, 0x00 }, { 0x040B, 0x00 }, { 0x040C, 0x10 }, { 0x040D, 0x6A }, { 0x040E, 0x06 }, { 0x040F, 0x18 }, { 0x3038, 0x00 }, { 0x303A, 0x00 }, { 0x303B, 0x10 }, { 0x300D, 0x00 }, { 0x034C, 0x08 }, { 0x034D, 0x38 }, { 0x034E, 0x06 }, { 0x034F, 0x18 }, { 0x0350, 0x01 }, { 0x0202, 0x06 }, { 0x0203, 0x2E }, { 0x0204, 0x00 }, { 0x0205, 0x00 }, { 0x020E, 0x01 }, { 0x020F, 0x00 }, { 0x0210, 0x01 }, { 0x0211, 0x00 }, { 0x0212, 0x01 }, { 0x0213, 0x00 }, { 0x0214, 0x01 }, { 0x0215, 0x00 }, { 0x7BCD, 0x01 }, { 0x94DC, 0x20 }, { 0x94DD, 0x20 }, { 0x94DE, 0x20 }, { 0x95DC, 0x20 }, { 0x95DD, 0x20 }, { 0x95DE, 0x20 }, { 0x7FB0, 0x00 }, { 0x9010, 0x3E }, { 0x9419, 0x50 }, { 0x941B, 0x50 }, { 0x9519, 0x50 }, { 0x951B, 0x50 }, { 0x3030, 0x00 }, { 0x3032, 0x00 }, { 0x0220, 0x00 }, }; static const struct imx258_reg mode_1048_780_regs[] = { { 0x0136, 0x13 }, { 0x0137, 0x33 }, { 0x3051, 0x00 }, { 0x3052, 0x00 }, { 0x4E21, 0x14 }, { 0x6B11, 0xCF }, { 0x7FF0, 0x08 }, { 0x7FF1, 0x0F }, { 0x7FF2, 0x08 }, { 0x7FF3, 0x1B }, { 0x7FF4, 0x23 }, { 0x7FF5, 0x60 }, { 0x7FF6, 0x00 }, { 0x7FF7, 0x01 }, { 0x7FF8, 0x00 }, { 0x7FF9, 0x78 }, { 0x7FFA, 0x00 }, { 0x7FFB, 0x00 }, { 0x7FFC, 0x00 }, { 0x7FFD, 0x00 }, { 0x7FFE, 0x00 }, { 0x7FFF, 0x03 }, { 0x7F76, 0x03 }, { 0x7F77, 0xFE }, { 0x7FA8, 0x03 }, { 0x7FA9, 0xFE }, { 0x7B24, 0x81 }, { 0x7B25, 0x00 }, { 0x6564, 0x07 }, { 0x6B0D, 0x41 }, { 0x653D, 0x04 }, { 0x6B05, 0x8C }, { 0x6B06, 0xF9 }, { 0x6B08, 0x65 }, { 0x6B09, 0xFC }, { 0x6B0A, 0xCF }, { 0x6B0B, 0xD2 }, { 0x6700, 0x0E }, { 0x6707, 0x0E }, { 0x9104, 0x00 }, { 0x4648, 0x7F }, { 0x7420, 0x00 }, { 0x7421, 0x1C }, { 0x7422, 0x00 }, { 0x7423, 0xD7 }, { 0x5F04, 0x00 }, { 0x5F05, 0xED }, { 0x0112, 0x0A }, { 0x0113, 0x0A }, { 0x0114, 0x03 }, { 0x0342, 0x14 }, { 0x0343, 0xE8 }, { 0x0340, 0x03 }, { 0x0341, 0x4C }, { 0x0344, 0x00 }, { 0x0345, 0x00 }, { 0x0346, 0x00 }, { 0x0347, 0x00 }, { 0x0348, 0x10 }, { 0x0349, 0x6F }, { 0x034A, 0x0C }, { 0x034B, 0x2E }, { 0x0381, 0x01 }, { 0x0383, 0x01 }, { 0x0385, 0x01 }, { 0x0387, 0x01 }, { 0x0900, 0x01 }, { 0x0901, 0x14 }, { 0x0401, 0x01 }, { 0x0404, 0x00 }, { 0x0405, 0x40 }, { 0x0408, 0x00 }, { 0x0409, 0x06 }, { 0x040A, 0x00 }, { 0x040B, 0x00 }, { 0x040C, 0x10 }, { 0x040D, 0x64 }, { 0x040E, 0x03 }, { 0x040F, 0x0C }, { 0x3038, 0x00 }, { 0x303A, 0x00 }, { 0x303B, 0x10 }, { 0x300D, 0x00 }, { 0x034C, 0x04 }, { 0x034D, 0x18 }, { 0x034E, 0x03 }, { 0x034F, 0x0C }, { 0x0350, 0x01 }, { 0x0202, 0x03 }, { 0x0203, 0x42 }, { 0x0204, 0x00 }, { 0x0205, 0x00 }, { 0x020E, 0x01 }, { 0x020F, 0x00 }, { 0x0210, 0x01 }, { 0x0211, 0x00 }, { 0x0212, 0x01 }, { 0x0213, 0x00 }, { 0x0214, 0x01 }, { 0x0215, 0x00 }, { 0x7BCD, 0x00 }, { 0x94DC, 0x20 }, { 0x94DD, 0x20 }, { 0x94DE, 0x20 }, { 0x95DC, 0x20 }, { 0x95DD, 0x20 }, { 0x95DE, 0x20 }, { 0x7FB0, 0x00 }, { 0x9010, 0x3E }, { 0x9419, 0x50 }, { 0x941B, 0x50 }, { 0x9519, 0x50 }, { 0x951B, 0x50 }, { 0x3030, 0x00 }, { 0x3032, 0x00 }, { 0x0220, 0x00 }, }; static const char * const imx258_test_pattern_menu[] = { "Disabled", "Solid Colour", "Eight Vertical Colour Bars", "Colour Bars With Fade to Grey", "Pseudorandom Sequence (PN9)", }; /* Configurations for supported link frequencies */ #define IMX258_LINK_FREQ_634MHZ 633600000ULL #define IMX258_LINK_FREQ_320MHZ 320000000ULL enum { IMX258_LINK_FREQ_1267MBPS, IMX258_LINK_FREQ_640MBPS, }; /* * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample * data rate => double data rate; number of lanes => 4; bits per pixel => 10 */ static u64 link_freq_to_pixel_rate(u64 f) { f *= 2 * 4; do_div(f, 10); return f; } /* Menu items for LINK_FREQ V4L2 control */ static const s64 link_freq_menu_items[] = { IMX258_LINK_FREQ_634MHZ, IMX258_LINK_FREQ_320MHZ, }; /* Link frequency configs */ static const struct imx258_link_freq_config link_freq_configs[] = { [IMX258_LINK_FREQ_1267MBPS] = { .pixels_per_line = IMX258_PPL_DEFAULT, .reg_list = { .num_of_regs = ARRAY_SIZE(mipi_data_rate_1267mbps), .regs = mipi_data_rate_1267mbps, } }, [IMX258_LINK_FREQ_640MBPS] = { .pixels_per_line = IMX258_PPL_DEFAULT, .reg_list = { .num_of_regs = ARRAY_SIZE(mipi_data_rate_640mbps), .regs = mipi_data_rate_640mbps, } }, }; /* Mode configs */ static const struct imx258_mode supported_modes[] = { { .width = 4208, .height = 3118, .vts_def = IMX258_VTS_30FPS, .vts_min = IMX258_VTS_30FPS, .reg_list = { .num_of_regs = ARRAY_SIZE(mode_4208x3118_regs), .regs = mode_4208x3118_regs, }, .link_freq_index = IMX258_LINK_FREQ_1267MBPS, }, { .width = 2104, .height = 1560, .vts_def = IMX258_VTS_30FPS_2K, .vts_min = IMX258_VTS_30FPS_2K, .reg_list = { .num_of_regs = ARRAY_SIZE(mode_2104_1560_regs), .regs = mode_2104_1560_regs, }, .link_freq_index = IMX258_LINK_FREQ_640MBPS, }, { .width = 1048, .height = 780, .vts_def = IMX258_VTS_30FPS_VGA, .vts_min = IMX258_VTS_30FPS_VGA, .reg_list = { .num_of_regs = ARRAY_SIZE(mode_1048_780_regs), .regs = mode_1048_780_regs, }, .link_freq_index = IMX258_LINK_FREQ_640MBPS, }, }; struct imx258 { 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 imx258_mode *cur_mode; /* * Mutex for serialized access: * Protect sensor module set pad format and start/stop streaming safely. */ struct mutex mutex; /* Streaming on/off */ bool streaming; struct clk *clk; }; static inline struct imx258 *to_imx258(struct v4l2_subdev *_sd) { return container_of(_sd, struct imx258, sd); } /* Read registers up to 2 at a time */ static int imx258_read_reg(struct imx258 *imx258, u16 reg, u32 len, u32 *val) { struct i2c_client *client = v4l2_get_subdevdata(&imx258->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 imx258_write_reg(struct imx258 *imx258, u16 reg, u32 len, u32 val) { struct i2c_client *client = v4l2_get_subdevdata(&imx258->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 imx258_write_regs(struct imx258 *imx258, const struct imx258_reg *regs, u32 len) { struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); unsigned int i; int ret; for (i = 0; i < len; i++) { ret = imx258_write_reg(imx258, 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; } /* Open sub-device */ static int imx258_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { struct v4l2_mbus_framefmt *try_fmt = v4l2_subdev_get_try_format(sd, fh->state, 0); /* Initialize try_fmt */ try_fmt->width = supported_modes[0].width; try_fmt->height = supported_modes[0].height; try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10; try_fmt->field = V4L2_FIELD_NONE; return 0; } static int imx258_update_digital_gain(struct imx258 *imx258, u32 len, u32 val) { int ret; ret = imx258_write_reg(imx258, IMX258_REG_GR_DIGITAL_GAIN, IMX258_REG_VALUE_16BIT, val); if (ret) return ret; ret = imx258_write_reg(imx258, IMX258_REG_GB_DIGITAL_GAIN, IMX258_REG_VALUE_16BIT, val); if (ret) return ret; ret = imx258_write_reg(imx258, IMX258_REG_R_DIGITAL_GAIN, IMX258_REG_VALUE_16BIT, val); if (ret) return ret; ret = imx258_write_reg(imx258, IMX258_REG_B_DIGITAL_GAIN, IMX258_REG_VALUE_16BIT, val); if (ret) return ret; return 0; } static int imx258_set_ctrl(struct v4l2_ctrl *ctrl) { struct imx258 *imx258 = container_of(ctrl->handler, struct imx258, ctrl_handler); struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); int ret = 0; /* * Applying V4L2 control value only happens * when power is up for streaming */ if (pm_runtime_get_if_in_use(&client->dev) == 0) return 0; switch (ctrl->id) { case V4L2_CID_ANALOGUE_GAIN: ret = imx258_write_reg(imx258, IMX258_REG_ANALOG_GAIN, IMX258_REG_VALUE_16BIT, ctrl->val); break; case V4L2_CID_EXPOSURE: ret = imx258_write_reg(imx258, IMX258_REG_EXPOSURE, IMX258_REG_VALUE_16BIT, ctrl->val); break; case V4L2_CID_DIGITAL_GAIN: ret = imx258_update_digital_gain(imx258, IMX258_REG_VALUE_16BIT, ctrl->val); break; case V4L2_CID_TEST_PATTERN: ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN, IMX258_REG_VALUE_16BIT, ctrl->val); ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, IMX258_REG_VALUE_08BIT, !ctrl->val ? REG_CONFIG_MIRROR_FLIP : REG_CONFIG_FLIP_TEST_PATTERN); break; case V4L2_CID_WIDE_DYNAMIC_RANGE: if (!ctrl->val) { ret = imx258_write_reg(imx258, IMX258_REG_HDR, IMX258_REG_VALUE_08BIT, IMX258_HDR_RATIO_MIN); } else { ret = imx258_write_reg(imx258, IMX258_REG_HDR, IMX258_REG_VALUE_08BIT, IMX258_HDR_ON); if (ret) break; ret = imx258_write_reg(imx258, IMX258_REG_HDR_RATIO, IMX258_REG_VALUE_08BIT, BIT(IMX258_HDR_RATIO_MAX)); } break; default: dev_info(&client->dev, "ctrl(id:0x%x,val:0x%x) is not handled\n", ctrl->id, ctrl->val); ret = -EINVAL; break; } pm_runtime_put(&client->dev); return ret; } static const struct v4l2_ctrl_ops imx258_ctrl_ops = { .s_ctrl = imx258_set_ctrl, }; static int imx258_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { /* Only one bayer order(GRBG) is supported */ if (code->index > 0) return -EINVAL; code->code = MEDIA_BUS_FMT_SGRBG10_1X10; return 0; } static int imx258_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_SGRBG10_1X10) 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 void imx258_update_pad_format(const struct imx258_mode *mode, struct v4l2_subdev_format *fmt) { fmt->format.width = mode->width; fmt->format.height = mode->height; fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; fmt->format.field = V4L2_FIELD_NONE; } static int __imx258_get_pad_format(struct imx258 *imx258, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) fmt->format = *v4l2_subdev_get_try_format(&imx258->sd, sd_state, fmt->pad); else imx258_update_pad_format(imx258->cur_mode, fmt); return 0; } static int imx258_get_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct imx258 *imx258 = to_imx258(sd); int ret; mutex_lock(&imx258->mutex); ret = __imx258_get_pad_format(imx258, sd_state, fmt); mutex_unlock(&imx258->mutex); return ret; } static int imx258_set_pad_format(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct imx258 *imx258 = to_imx258(sd); const struct imx258_mode *mode; struct v4l2_mbus_framefmt *framefmt; s32 vblank_def; s32 vblank_min; s64 h_blank; s64 pixel_rate; s64 link_freq; mutex_lock(&imx258->mutex); /* Only one raw bayer(GBRG) order is supported */ fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; mode = v4l2_find_nearest_size(supported_modes, ARRAY_SIZE(supported_modes), width, height, fmt->format.width, fmt->format.height); imx258_update_pad_format(mode, fmt); if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad); *framefmt = fmt->format; } else { imx258->cur_mode = mode; __v4l2_ctrl_s_ctrl(imx258->link_freq, mode->link_freq_index); link_freq = link_freq_menu_items[mode->link_freq_index]; pixel_rate = link_freq_to_pixel_rate(link_freq); __v4l2_ctrl_s_ctrl_int64(imx258->pixel_rate, pixel_rate); /* Update limits and set FPS to default */ vblank_def = imx258->cur_mode->vts_def - imx258->cur_mode->height; vblank_min = imx258->cur_mode->vts_min - imx258->cur_mode->height; __v4l2_ctrl_modify_range( imx258->vblank, vblank_min, IMX258_VTS_MAX - imx258->cur_mode->height, 1, vblank_def); __v4l2_ctrl_s_ctrl(imx258->vblank, vblank_def); h_blank = link_freq_configs[mode->link_freq_index].pixels_per_line - imx258->cur_mode->width; __v4l2_ctrl_modify_range(imx258->hblank, h_blank, h_blank, 1, h_blank); } mutex_unlock(&imx258->mutex); return 0; } /* Start streaming */ static int imx258_start_streaming(struct imx258 *imx258) { struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); const struct imx258_reg_list *reg_list; int ret, link_freq_index; /* Setup PLL */ link_freq_index = imx258->cur_mode->link_freq_index; reg_list = &link_freq_configs[link_freq_index].reg_list; ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); if (ret) { dev_err(&client->dev, "%s failed to set plls\n", __func__); return ret; } /* Apply default values of current mode */ reg_list = &imx258->cur_mode->reg_list; ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); if (ret) { dev_err(&client->dev, "%s failed to set mode\n", __func__); return ret; } /* Set Orientation be 180 degree */ ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, IMX258_REG_VALUE_08BIT, REG_CONFIG_MIRROR_FLIP); if (ret) { dev_err(&client->dev, "%s failed to set orientation\n", __func__); return ret; } /* Apply customized values from user */ ret = __v4l2_ctrl_handler_setup(imx258->sd.ctrl_handler); if (ret) return ret; /* set stream on register */ return imx258_write_reg(imx258, IMX258_REG_MODE_SELECT, IMX258_REG_VALUE_08BIT, IMX258_MODE_STREAMING); } /* Stop streaming */ static int imx258_stop_streaming(struct imx258 *imx258) { struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); int ret; /* set stream off register */ ret = imx258_write_reg(imx258, IMX258_REG_MODE_SELECT, IMX258_REG_VALUE_08BIT, IMX258_MODE_STANDBY); if (ret) dev_err(&client->dev, "%s failed to set stream\n", __func__); /* * Return success even if it was an error, as there is nothing the * caller can do about it. */ return 0; } static int imx258_power_on(struct device *dev) { struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx258 *imx258 = to_imx258(sd); int ret; ret = clk_prepare_enable(imx258->clk); if (ret) dev_err(dev, "failed to enable clock\n"); return ret; } static int imx258_power_off(struct device *dev) { struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx258 *imx258 = to_imx258(sd); clk_disable_unprepare(imx258->clk); return 0; } static int imx258_set_stream(struct v4l2_subdev *sd, int enable) { struct imx258 *imx258 = to_imx258(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); int ret = 0; mutex_lock(&imx258->mutex); if (imx258->streaming == enable) { mutex_unlock(&imx258->mutex); return 0; } if (enable) { ret = pm_runtime_resume_and_get(&client->dev); if (ret < 0) goto err_unlock; /* * Apply default & customized values * and then start streaming. */ ret = imx258_start_streaming(imx258); if (ret) goto err_rpm_put; } else { imx258_stop_streaming(imx258); pm_runtime_put(&client->dev); } imx258->streaming = enable; mutex_unlock(&imx258->mutex); return ret; err_rpm_put: pm_runtime_put(&client->dev); err_unlock: mutex_unlock(&imx258->mutex); return ret; } static int __maybe_unused imx258_suspend(struct device *dev) { struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx258 *imx258 = to_imx258(sd); if (imx258->streaming) imx258_stop_streaming(imx258); return 0; } static int __maybe_unused imx258_resume(struct device *dev) { struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx258 *imx258 = to_imx258(sd); int ret; if (imx258->streaming) { ret = imx258_start_streaming(imx258); if (ret) goto error; } return 0; error: imx258_stop_streaming(imx258); imx258->streaming = 0; return ret; } /* Verify chip ID */ static int imx258_identify_module(struct imx258 *imx258) { struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); int ret; u32 val; ret = imx258_read_reg(imx258, IMX258_REG_CHIP_ID, IMX258_REG_VALUE_16BIT, &val); if (ret) { dev_err(&client->dev, "failed to read chip id %x\n", IMX258_CHIP_ID); return ret; } if (val != IMX258_CHIP_ID) { dev_err(&client->dev, "chip id mismatch: %x!=%x\n", IMX258_CHIP_ID, val); return -EIO; } return 0; } static const struct v4l2_subdev_video_ops imx258_video_ops = { .s_stream = imx258_set_stream, }; static const struct v4l2_subdev_pad_ops imx258_pad_ops = { .enum_mbus_code = imx258_enum_mbus_code, .get_fmt = imx258_get_pad_format, .set_fmt = imx258_set_pad_format, .enum_frame_size = imx258_enum_frame_size, }; static const struct v4l2_subdev_ops imx258_subdev_ops = { .video = &imx258_video_ops, .pad = &imx258_pad_ops, }; static const struct v4l2_subdev_internal_ops imx258_internal_ops = { .open = imx258_open, }; /* Initialize control handlers */ static int imx258_init_controls(struct imx258 *imx258) { struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); struct v4l2_ctrl_handler *ctrl_hdlr; s64 vblank_def; s64 vblank_min; s64 pixel_rate_min; s64 pixel_rate_max; int ret; ctrl_hdlr = &imx258->ctrl_handler; ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8); if (ret) return ret; mutex_init(&imx258->mutex); ctrl_hdlr->lock = &imx258->mutex; imx258->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_LINK_FREQ, ARRAY_SIZE(link_freq_menu_items) - 1, 0, link_freq_menu_items); if (imx258->link_freq) imx258->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]); pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]); /* By default, PIXEL_RATE is read only */ imx258->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_PIXEL_RATE, pixel_rate_min, pixel_rate_max, 1, pixel_rate_max); vblank_def = imx258->cur_mode->vts_def - imx258->cur_mode->height; vblank_min = imx258->cur_mode->vts_min - imx258->cur_mode->height; imx258->vblank = v4l2_ctrl_new_std( ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_VBLANK, vblank_min, IMX258_VTS_MAX - imx258->cur_mode->height, 1, vblank_def); if (imx258->vblank) imx258->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; imx258->hblank = v4l2_ctrl_new_std( ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_HBLANK, IMX258_PPL_DEFAULT - imx258->cur_mode->width, IMX258_PPL_DEFAULT - imx258->cur_mode->width, 1, IMX258_PPL_DEFAULT - imx258->cur_mode->width); if (imx258->hblank) imx258->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; imx258->exposure = v4l2_ctrl_new_std( ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_EXPOSURE, IMX258_EXPOSURE_MIN, IMX258_EXPOSURE_MAX, IMX258_EXPOSURE_STEP, IMX258_EXPOSURE_DEFAULT); v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, IMX258_ANA_GAIN_MIN, IMX258_ANA_GAIN_MAX, IMX258_ANA_GAIN_STEP, IMX258_ANA_GAIN_DEFAULT); v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_DIGITAL_GAIN, IMX258_DGTL_GAIN_MIN, IMX258_DGTL_GAIN_MAX, IMX258_DGTL_GAIN_STEP, IMX258_DGTL_GAIN_DEFAULT); v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_WIDE_DYNAMIC_RANGE, 0, 1, 1, IMX258_HDR_RATIO_DEFAULT); v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(imx258_test_pattern_menu) - 1, 0, 0, imx258_test_pattern_menu); if (ctrl_hdlr->error) { ret = ctrl_hdlr->error; dev_err(&client->dev, "%s control init failed (%d)\n", __func__, ret); goto error; } imx258->sd.ctrl_handler = ctrl_hdlr; return 0; error: v4l2_ctrl_handler_free(ctrl_hdlr); mutex_destroy(&imx258->mutex); return ret; } static void imx258_free_controls(struct imx258 *imx258) { v4l2_ctrl_handler_free(imx258->sd.ctrl_handler); mutex_destroy(&imx258->mutex); } static int imx258_probe(struct i2c_client *client) { struct imx258 *imx258; int ret; u32 val = 0; imx258 = devm_kzalloc(&client->dev, sizeof(*imx258), GFP_KERNEL); if (!imx258) return -ENOMEM; imx258->clk = devm_clk_get_optional(&client->dev, NULL); if (IS_ERR(imx258->clk)) return dev_err_probe(&client->dev, PTR_ERR(imx258->clk), "error getting clock\n"); if (!imx258->clk) { dev_dbg(&client->dev, "no clock provided, using clock-frequency property\n"); device_property_read_u32(&client->dev, "clock-frequency", &val); } else { val = clk_get_rate(imx258->clk); } if (val != IMX258_INPUT_CLOCK_FREQ) { dev_err(&client->dev, "input clock frequency not supported\n"); return -EINVAL; } /* * Check that the device is mounted upside down. The driver only * supports a single pixel order right now. */ ret = device_property_read_u32(&client->dev, "rotation", &val); if (ret || val != 180) return -EINVAL; /* Initialize subdev */ v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops); /* Will be powered off via pm_runtime_idle */ ret = imx258_power_on(&client->dev); if (ret) return ret; /* Check module identity */ ret = imx258_identify_module(imx258); if (ret) goto error_identify; /* Set default mode to max resolution */ imx258->cur_mode = &supported_modes[0]; ret = imx258_init_controls(imx258); if (ret) goto error_identify; /* Initialize subdev */ imx258->sd.internal_ops = &imx258_internal_ops; imx258->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; imx258->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; /* Initialize source pad */ imx258->pad.flags = MEDIA_PAD_FL_SOURCE; ret = media_entity_pads_init(&imx258->sd.entity, 1, &imx258->pad); if (ret) goto error_handler_free; ret = v4l2_async_register_subdev_sensor(&imx258->sd); if (ret < 0) goto error_media_entity; pm_runtime_set_active(&client->dev); pm_runtime_enable(&client->dev); pm_runtime_idle(&client->dev); return 0; error_media_entity: media_entity_cleanup(&imx258->sd.entity); error_handler_free: imx258_free_controls(imx258); error_identify: imx258_power_off(&client->dev); return ret; } static int imx258_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct imx258 *imx258 = to_imx258(sd); v4l2_async_unregister_subdev(sd); media_entity_cleanup(&sd->entity); imx258_free_controls(imx258); pm_runtime_disable(&client->dev); if (!pm_runtime_status_suspended(&client->dev)) imx258_power_off(&client->dev); pm_runtime_set_suspended(&client->dev); return 0; } static const struct dev_pm_ops imx258_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(imx258_suspend, imx258_resume) SET_RUNTIME_PM_OPS(imx258_power_off, imx258_power_on, NULL) }; #ifdef CONFIG_ACPI static const struct acpi_device_id imx258_acpi_ids[] = { { "SONY258A" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(acpi, imx258_acpi_ids); #endif static const struct of_device_id imx258_dt_ids[] = { { .compatible = "sony,imx258" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, imx258_dt_ids); static struct i2c_driver imx258_i2c_driver = { .driver = { .name = "imx258", .pm = &imx258_pm_ops, .acpi_match_table = ACPI_PTR(imx258_acpi_ids), .of_match_table = imx258_dt_ids, }, .probe_new = imx258_probe, .remove = imx258_remove, }; module_i2c_driver(imx258_i2c_driver); MODULE_AUTHOR("Yeh, Andy <andy.yeh@intel.com>"); MODULE_AUTHOR("Chiang, Alan"); MODULE_AUTHOR("Chen, Jason"); MODULE_DESCRIPTION("Sony IMX258 sensor driver"); MODULE_LICENSE("GPL v2");
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