| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Manivannan Sadhasivam | 3044 | 51.10% | 7 | 14.00% |
| Laurent Pinchart | 2844 | 47.74% | 34 | 68.00% |
| Andrey Konovalov | 50 | 0.84% | 4 | 8.00% |
| Tomi Valkeinen | 11 | 0.18% | 1 | 2.00% |
| Arnd Bergmann | 4 | 0.07% | 1 | 2.00% |
| Krzysztof Kozlowski | 2 | 0.03% | 1 | 2.00% |
| Mauro Carvalho Chehab | 1 | 0.02% | 1 | 2.00% |
| Uwe Kleine-König | 1 | 0.02% | 1 | 2.00% |
| Total | 5957 | 50 |
// SPDX-License-Identifier: GPL-2.0 /* * Sony IMX290 CMOS Image Sensor Driver * * Copyright (C) 2019 FRAMOS GmbH. * * Copyright (C) 2019 Linaro Ltd. * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> */ #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/regmap.h> #include <linux/regulator/consumer.h> #include <media/media-entity.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-subdev.h> #define IMX290_REG_SIZE_SHIFT 16 #define IMX290_REG_ADDR_MASK 0xffff #define IMX290_REG_8BIT(n) ((1U << IMX290_REG_SIZE_SHIFT) | (n)) #define IMX290_REG_16BIT(n) ((2U << IMX290_REG_SIZE_SHIFT) | (n)) #define IMX290_REG_24BIT(n) ((3U << IMX290_REG_SIZE_SHIFT) | (n)) #define IMX290_STANDBY IMX290_REG_8BIT(0x3000) #define IMX290_REGHOLD IMX290_REG_8BIT(0x3001) #define IMX290_XMSTA IMX290_REG_8BIT(0x3002) #define IMX290_ADBIT IMX290_REG_8BIT(0x3005) #define IMX290_ADBIT_10BIT (0 << 0) #define IMX290_ADBIT_12BIT (1 << 0) #define IMX290_CTRL_07 IMX290_REG_8BIT(0x3007) #define IMX290_VREVERSE BIT(0) #define IMX290_HREVERSE BIT(1) #define IMX290_WINMODE_1080P (0 << 4) #define IMX290_WINMODE_720P (1 << 4) #define IMX290_WINMODE_CROP (4 << 4) #define IMX290_FR_FDG_SEL IMX290_REG_8BIT(0x3009) #define IMX290_BLKLEVEL IMX290_REG_16BIT(0x300a) #define IMX290_GAIN IMX290_REG_8BIT(0x3014) #define IMX290_VMAX IMX290_REG_24BIT(0x3018) #define IMX290_HMAX IMX290_REG_16BIT(0x301c) #define IMX290_SHS1 IMX290_REG_24BIT(0x3020) #define IMX290_WINWV_OB IMX290_REG_8BIT(0x303a) #define IMX290_WINPV IMX290_REG_16BIT(0x303c) #define IMX290_WINWV IMX290_REG_16BIT(0x303e) #define IMX290_WINPH IMX290_REG_16BIT(0x3040) #define IMX290_WINWH IMX290_REG_16BIT(0x3042) #define IMX290_OUT_CTRL IMX290_REG_8BIT(0x3046) #define IMX290_ODBIT_10BIT (0 << 0) #define IMX290_ODBIT_12BIT (1 << 0) #define IMX290_OPORTSEL_PARALLEL (0x0 << 4) #define IMX290_OPORTSEL_LVDS_2CH (0xd << 4) #define IMX290_OPORTSEL_LVDS_4CH (0xe << 4) #define IMX290_OPORTSEL_LVDS_8CH (0xf << 4) #define IMX290_XSOUTSEL IMX290_REG_8BIT(0x304b) #define IMX290_XSOUTSEL_XVSOUTSEL_HIGH (0 << 0) #define IMX290_XSOUTSEL_XVSOUTSEL_VSYNC (2 << 0) #define IMX290_XSOUTSEL_XHSOUTSEL_HIGH (0 << 2) #define IMX290_XSOUTSEL_XHSOUTSEL_HSYNC (2 << 2) #define IMX290_INCKSEL1 IMX290_REG_8BIT(0x305c) #define IMX290_INCKSEL2 IMX290_REG_8BIT(0x305d) #define IMX290_INCKSEL3 IMX290_REG_8BIT(0x305e) #define IMX290_INCKSEL4 IMX290_REG_8BIT(0x305f) #define IMX290_PGCTRL IMX290_REG_8BIT(0x308c) #define IMX290_ADBIT1 IMX290_REG_8BIT(0x3129) #define IMX290_ADBIT1_10BIT 0x1d #define IMX290_ADBIT1_12BIT 0x00 #define IMX290_INCKSEL5 IMX290_REG_8BIT(0x315e) #define IMX290_INCKSEL6 IMX290_REG_8BIT(0x3164) #define IMX290_ADBIT2 IMX290_REG_8BIT(0x317c) #define IMX290_ADBIT2_10BIT 0x12 #define IMX290_ADBIT2_12BIT 0x00 #define IMX290_CHIP_ID IMX290_REG_16BIT(0x319a) #define IMX290_ADBIT3 IMX290_REG_8BIT(0x31ec) #define IMX290_ADBIT3_10BIT 0x37 #define IMX290_ADBIT3_12BIT 0x0e #define IMX290_REPETITION IMX290_REG_8BIT(0x3405) #define IMX290_PHY_LANE_NUM IMX290_REG_8BIT(0x3407) #define IMX290_OPB_SIZE_V IMX290_REG_8BIT(0x3414) #define IMX290_Y_OUT_SIZE IMX290_REG_16BIT(0x3418) #define IMX290_CSI_DT_FMT IMX290_REG_16BIT(0x3441) #define IMX290_CSI_DT_FMT_RAW10 0x0a0a #define IMX290_CSI_DT_FMT_RAW12 0x0c0c #define IMX290_CSI_LANE_MODE IMX290_REG_8BIT(0x3443) #define IMX290_EXTCK_FREQ IMX290_REG_16BIT(0x3444) #define IMX290_TCLKPOST IMX290_REG_16BIT(0x3446) #define IMX290_THSZERO IMX290_REG_16BIT(0x3448) #define IMX290_THSPREPARE IMX290_REG_16BIT(0x344a) #define IMX290_TCLKTRAIL IMX290_REG_16BIT(0x344c) #define IMX290_THSTRAIL IMX290_REG_16BIT(0x344e) #define IMX290_TCLKZERO IMX290_REG_16BIT(0x3450) #define IMX290_TCLKPREPARE IMX290_REG_16BIT(0x3452) #define IMX290_TLPX IMX290_REG_16BIT(0x3454) #define IMX290_X_OUT_SIZE IMX290_REG_16BIT(0x3472) #define IMX290_PGCTRL_REGEN BIT(0) #define IMX290_PGCTRL_THRU BIT(1) #define IMX290_PGCTRL_MODE(n) ((n) << 4) #define IMX290_VMAX_DEFAULT 1125 /* * The IMX290 pixel array is organized as follows: * * +------------------------------------+ * | Optical Black | } Vertical effective optical black (10) * +---+------------------------------------+---+ * | | | | } Effective top margin (8) * | | +----------------------------+ | | \ * | | | | | | | * | | | | | | | * | | | | | | | * | | | Recording Pixel Area | | | | Recommended height (1080) * | | | | | | | * | | | | | | | * | | | | | | | * | | +----------------------------+ | | / * | | | | } Effective bottom margin (9) * +---+------------------------------------+---+ * <-> <-> <--------------------------> <-> <-> * \---- Ignored right margin (4) * \-------- Effective right margin (9) * \------------------------- Recommended width (1920) * \----------------------------------------- Effective left margin (8) * \--------------------------------------------- Ignored left margin (4) * * The optical black lines are output over CSI-2 with a separate data type. * * The pixel array is meant to have 1920x1080 usable pixels after image * processing in an ISP. It has 8 (9) extra active pixels usable for color * processing in the ISP on the top and left (bottom and right) sides of the * image. In addition, 4 additional pixels are present on the left and right * sides of the image, documented as "ignored area". * * As far as is understood, all pixels of the pixel array (ignored area, color * processing margins and recording area) can be output by the sensor. */ #define IMX290_PIXEL_ARRAY_WIDTH 1945 #define IMX290_PIXEL_ARRAY_HEIGHT 1097 #define IMX920_PIXEL_ARRAY_MARGIN_LEFT 12 #define IMX920_PIXEL_ARRAY_MARGIN_RIGHT 13 #define IMX920_PIXEL_ARRAY_MARGIN_TOP 8 #define IMX920_PIXEL_ARRAY_MARGIN_BOTTOM 9 #define IMX290_PIXEL_ARRAY_RECORDING_WIDTH 1920 #define IMX290_PIXEL_ARRAY_RECORDING_HEIGHT 1080 /* Equivalent value for 16bpp */ #define IMX290_BLACK_LEVEL_DEFAULT 3840 #define IMX290_NUM_SUPPLIES 3 struct imx290_regval { u32 reg; u32 val; }; struct imx290_mode { u32 width; u32 height; u32 hmax; u8 link_freq_index; const struct imx290_regval *data; u32 data_size; }; struct imx290 { struct device *dev; struct clk *xclk; struct regmap *regmap; u8 nlanes; struct v4l2_subdev sd; struct media_pad pad; const struct imx290_mode *current_mode; struct regulator_bulk_data supplies[IMX290_NUM_SUPPLIES]; struct gpio_desc *rst_gpio; struct v4l2_ctrl_handler ctrls; struct v4l2_ctrl *link_freq; struct v4l2_ctrl *pixel_rate; struct v4l2_ctrl *hblank; struct v4l2_ctrl *vblank; }; static inline struct imx290 *to_imx290(struct v4l2_subdev *_sd) { return container_of(_sd, struct imx290, sd); } /* ----------------------------------------------------------------------------- * Modes and formats */ static const struct imx290_regval imx290_global_init_settings[] = { { IMX290_CTRL_07, IMX290_WINMODE_1080P }, { IMX290_VMAX, IMX290_VMAX_DEFAULT }, { IMX290_EXTCK_FREQ, 0x2520 }, { IMX290_WINWV_OB, 12 }, { IMX290_WINPH, 0 }, { IMX290_WINPV, 0 }, { IMX290_WINWH, 1948 }, { IMX290_WINWV, 1097 }, { IMX290_XSOUTSEL, IMX290_XSOUTSEL_XVSOUTSEL_VSYNC | IMX290_XSOUTSEL_XHSOUTSEL_HSYNC }, { IMX290_REG_8BIT(0x300f), 0x00 }, { IMX290_REG_8BIT(0x3010), 0x21 }, { IMX290_REG_8BIT(0x3012), 0x64 }, { IMX290_REG_8BIT(0x3013), 0x00 }, { IMX290_REG_8BIT(0x3016), 0x09 }, { IMX290_REG_8BIT(0x3070), 0x02 }, { IMX290_REG_8BIT(0x3071), 0x11 }, { IMX290_REG_8BIT(0x309b), 0x10 }, { IMX290_REG_8BIT(0x309c), 0x22 }, { IMX290_REG_8BIT(0x30a2), 0x02 }, { IMX290_REG_8BIT(0x30a6), 0x20 }, { IMX290_REG_8BIT(0x30a8), 0x20 }, { IMX290_REG_8BIT(0x30aa), 0x20 }, { IMX290_REG_8BIT(0x30ac), 0x20 }, { IMX290_REG_8BIT(0x30b0), 0x43 }, { IMX290_REG_8BIT(0x3119), 0x9e }, { IMX290_REG_8BIT(0x311c), 0x1e }, { IMX290_REG_8BIT(0x311e), 0x08 }, { IMX290_REG_8BIT(0x3128), 0x05 }, { IMX290_REG_8BIT(0x313d), 0x83 }, { IMX290_REG_8BIT(0x3150), 0x03 }, { IMX290_REG_8BIT(0x317e), 0x00 }, { IMX290_REG_8BIT(0x32b8), 0x50 }, { IMX290_REG_8BIT(0x32b9), 0x10 }, { IMX290_REG_8BIT(0x32ba), 0x00 }, { IMX290_REG_8BIT(0x32bb), 0x04 }, { IMX290_REG_8BIT(0x32c8), 0x50 }, { IMX290_REG_8BIT(0x32c9), 0x10 }, { IMX290_REG_8BIT(0x32ca), 0x00 }, { IMX290_REG_8BIT(0x32cb), 0x04 }, { IMX290_REG_8BIT(0x332c), 0xd3 }, { IMX290_REG_8BIT(0x332d), 0x10 }, { IMX290_REG_8BIT(0x332e), 0x0d }, { IMX290_REG_8BIT(0x3358), 0x06 }, { IMX290_REG_8BIT(0x3359), 0xe1 }, { IMX290_REG_8BIT(0x335a), 0x11 }, { IMX290_REG_8BIT(0x3360), 0x1e }, { IMX290_REG_8BIT(0x3361), 0x61 }, { IMX290_REG_8BIT(0x3362), 0x10 }, { IMX290_REG_8BIT(0x33b0), 0x50 }, { IMX290_REG_8BIT(0x33b2), 0x1a }, { IMX290_REG_8BIT(0x33b3), 0x04 }, { IMX290_REG_8BIT(0x3480), 0x49 }, }; static const struct imx290_regval imx290_1080p_settings[] = { /* mode settings */ { IMX290_CTRL_07, IMX290_WINMODE_1080P }, { IMX290_WINWV_OB, 12 }, { IMX290_OPB_SIZE_V, 10 }, { IMX290_X_OUT_SIZE, 1920 }, { IMX290_Y_OUT_SIZE, 1080 }, { IMX290_INCKSEL1, 0x18 }, { IMX290_INCKSEL2, 0x03 }, { IMX290_INCKSEL3, 0x20 }, { IMX290_INCKSEL4, 0x01 }, { IMX290_INCKSEL5, 0x1a }, { IMX290_INCKSEL6, 0x1a }, /* data rate settings */ { IMX290_REPETITION, 0x10 }, { IMX290_TCLKPOST, 87 }, { IMX290_THSZERO, 55 }, { IMX290_THSPREPARE, 31 }, { IMX290_TCLKTRAIL, 31 }, { IMX290_THSTRAIL, 31 }, { IMX290_TCLKZERO, 119 }, { IMX290_TCLKPREPARE, 31 }, { IMX290_TLPX, 23 }, }; static const struct imx290_regval imx290_720p_settings[] = { /* mode settings */ { IMX290_CTRL_07, IMX290_WINMODE_720P }, { IMX290_WINWV_OB, 6 }, { IMX290_OPB_SIZE_V, 4 }, { IMX290_X_OUT_SIZE, 1280 }, { IMX290_Y_OUT_SIZE, 720 }, { IMX290_INCKSEL1, 0x20 }, { IMX290_INCKSEL2, 0x00 }, { IMX290_INCKSEL3, 0x20 }, { IMX290_INCKSEL4, 0x01 }, { IMX290_INCKSEL5, 0x1a }, { IMX290_INCKSEL6, 0x1a }, /* data rate settings */ { IMX290_REPETITION, 0x10 }, { IMX290_TCLKPOST, 79 }, { IMX290_THSZERO, 47 }, { IMX290_THSPREPARE, 23 }, { IMX290_TCLKTRAIL, 23 }, { IMX290_THSTRAIL, 23 }, { IMX290_TCLKZERO, 87 }, { IMX290_TCLKPREPARE, 23 }, { IMX290_TLPX, 23 }, }; static const struct imx290_regval imx290_10bit_settings[] = { { IMX290_ADBIT, IMX290_ADBIT_10BIT }, { IMX290_OUT_CTRL, IMX290_ODBIT_10BIT }, { IMX290_ADBIT1, IMX290_ADBIT1_10BIT }, { IMX290_ADBIT2, IMX290_ADBIT2_10BIT }, { IMX290_ADBIT3, IMX290_ADBIT3_10BIT }, { IMX290_CSI_DT_FMT, IMX290_CSI_DT_FMT_RAW10 }, }; static const struct imx290_regval imx290_12bit_settings[] = { { IMX290_ADBIT, IMX290_ADBIT_12BIT }, { IMX290_OUT_CTRL, IMX290_ODBIT_12BIT }, { IMX290_ADBIT1, IMX290_ADBIT1_12BIT }, { IMX290_ADBIT2, IMX290_ADBIT2_12BIT }, { IMX290_ADBIT3, IMX290_ADBIT3_12BIT }, { IMX290_CSI_DT_FMT, IMX290_CSI_DT_FMT_RAW12 }, }; /* supported link frequencies */ #define FREQ_INDEX_1080P 0 #define FREQ_INDEX_720P 1 static const s64 imx290_link_freq_2lanes[] = { [FREQ_INDEX_1080P] = 445500000, [FREQ_INDEX_720P] = 297000000, }; static const s64 imx290_link_freq_4lanes[] = { [FREQ_INDEX_1080P] = 222750000, [FREQ_INDEX_720P] = 148500000, }; /* * In this function and in the similar ones below We rely on imx290_probe() * to ensure that nlanes is either 2 or 4. */ static inline const s64 *imx290_link_freqs_ptr(const struct imx290 *imx290) { if (imx290->nlanes == 2) return imx290_link_freq_2lanes; else return imx290_link_freq_4lanes; } static inline int imx290_link_freqs_num(const struct imx290 *imx290) { if (imx290->nlanes == 2) return ARRAY_SIZE(imx290_link_freq_2lanes); else return ARRAY_SIZE(imx290_link_freq_4lanes); } /* Mode configs */ static const struct imx290_mode imx290_modes_2lanes[] = { { .width = 1920, .height = 1080, .hmax = 4400, .link_freq_index = FREQ_INDEX_1080P, .data = imx290_1080p_settings, .data_size = ARRAY_SIZE(imx290_1080p_settings), }, { .width = 1280, .height = 720, .hmax = 6600, .link_freq_index = FREQ_INDEX_720P, .data = imx290_720p_settings, .data_size = ARRAY_SIZE(imx290_720p_settings), }, }; static const struct imx290_mode imx290_modes_4lanes[] = { { .width = 1920, .height = 1080, .hmax = 2200, .link_freq_index = FREQ_INDEX_1080P, .data = imx290_1080p_settings, .data_size = ARRAY_SIZE(imx290_1080p_settings), }, { .width = 1280, .height = 720, .hmax = 3300, .link_freq_index = FREQ_INDEX_720P, .data = imx290_720p_settings, .data_size = ARRAY_SIZE(imx290_720p_settings), }, }; static inline const struct imx290_mode *imx290_modes_ptr(const struct imx290 *imx290) { if (imx290->nlanes == 2) return imx290_modes_2lanes; else return imx290_modes_4lanes; } static inline int imx290_modes_num(const struct imx290 *imx290) { if (imx290->nlanes == 2) return ARRAY_SIZE(imx290_modes_2lanes); else return ARRAY_SIZE(imx290_modes_4lanes); } struct imx290_format_info { u32 code; u8 bpp; const struct imx290_regval *regs; unsigned int num_regs; }; static const struct imx290_format_info imx290_formats[] = { { .code = MEDIA_BUS_FMT_SRGGB10_1X10, .bpp = 10, .regs = imx290_10bit_settings, .num_regs = ARRAY_SIZE(imx290_10bit_settings), }, { .code = MEDIA_BUS_FMT_SRGGB12_1X12, .bpp = 12, .regs = imx290_12bit_settings, .num_regs = ARRAY_SIZE(imx290_12bit_settings), } }; static const struct imx290_format_info *imx290_format_info(u32 code) { unsigned int i; for (i = 0; i < ARRAY_SIZE(imx290_formats); ++i) { const struct imx290_format_info *info = &imx290_formats[i]; if (info->code == code) return info; } return NULL; } /* ----------------------------------------------------------------------------- * Register access */ static int __always_unused imx290_read(struct imx290 *imx290, u32 addr, u32 *value) { u8 data[3] = { 0, 0, 0 }; int ret; ret = regmap_raw_read(imx290->regmap, addr & IMX290_REG_ADDR_MASK, data, (addr >> IMX290_REG_SIZE_SHIFT) & 3); if (ret < 0) { dev_err(imx290->dev, "%u-bit read from 0x%04x failed: %d\n", ((addr >> IMX290_REG_SIZE_SHIFT) & 3) * 8, addr & IMX290_REG_ADDR_MASK, ret); return ret; } *value = (data[2] << 16) | (data[1] << 8) | data[0]; return 0; } static int imx290_write(struct imx290 *imx290, u32 addr, u32 value, int *err) { u8 data[3] = { value & 0xff, (value >> 8) & 0xff, value >> 16 }; int ret; if (err && *err) return *err; ret = regmap_raw_write(imx290->regmap, addr & IMX290_REG_ADDR_MASK, data, (addr >> IMX290_REG_SIZE_SHIFT) & 3); if (ret < 0) { dev_err(imx290->dev, "%u-bit write to 0x%04x failed: %d\n", ((addr >> IMX290_REG_SIZE_SHIFT) & 3) * 8, addr & IMX290_REG_ADDR_MASK, ret); if (err) *err = ret; } return ret; } static int imx290_set_register_array(struct imx290 *imx290, const struct imx290_regval *settings, unsigned int num_settings) { unsigned int i; int ret; for (i = 0; i < num_settings; ++i, ++settings) { ret = imx290_write(imx290, settings->reg, settings->val, NULL); if (ret < 0) return ret; } /* Provide 10ms settle time */ usleep_range(10000, 11000); return 0; } static int imx290_set_data_lanes(struct imx290 *imx290) { int ret = 0; u32 frsel; switch (imx290->nlanes) { case 2: default: frsel = 0x02; break; case 4: frsel = 0x01; break; } imx290_write(imx290, IMX290_PHY_LANE_NUM, imx290->nlanes - 1, &ret); imx290_write(imx290, IMX290_CSI_LANE_MODE, imx290->nlanes - 1, &ret); imx290_write(imx290, IMX290_FR_FDG_SEL, frsel, &ret); return ret; } static int imx290_set_black_level(struct imx290 *imx290, const struct v4l2_mbus_framefmt *format, unsigned int black_level, int *err) { unsigned int bpp = imx290_format_info(format->code)->bpp; return imx290_write(imx290, IMX290_BLKLEVEL, black_level >> (16 - bpp), err); } static int imx290_setup_format(struct imx290 *imx290, const struct v4l2_mbus_framefmt *format) { const struct imx290_format_info *info; int ret; info = imx290_format_info(format->code); ret = imx290_set_register_array(imx290, info->regs, info->num_regs); if (ret < 0) { dev_err(imx290->dev, "Could not set format registers\n"); return ret; } return imx290_set_black_level(imx290, format, IMX290_BLACK_LEVEL_DEFAULT, &ret); } /* ---------------------------------------------------------------------------- * Controls */ static int imx290_set_ctrl(struct v4l2_ctrl *ctrl) { struct imx290 *imx290 = container_of(ctrl->handler, struct imx290, ctrls); const struct v4l2_mbus_framefmt *format; struct v4l2_subdev_state *state; int ret = 0; /* * Return immediately for controls that don't need to be applied to the * device. */ if (ctrl->flags & V4L2_CTRL_FLAG_READ_ONLY) return 0; /* V4L2 controls values will be applied only when power is already up */ if (!pm_runtime_get_if_in_use(imx290->dev)) return 0; state = v4l2_subdev_get_locked_active_state(&imx290->sd); format = v4l2_subdev_get_pad_format(&imx290->sd, state, 0); switch (ctrl->id) { case V4L2_CID_ANALOGUE_GAIN: ret = imx290_write(imx290, IMX290_GAIN, ctrl->val, NULL); break; case V4L2_CID_EXPOSURE: ret = imx290_write(imx290, IMX290_SHS1, IMX290_VMAX_DEFAULT - ctrl->val - 1, NULL); break; case V4L2_CID_TEST_PATTERN: if (ctrl->val) { imx290_set_black_level(imx290, format, 0, &ret); usleep_range(10000, 11000); imx290_write(imx290, IMX290_PGCTRL, (u8)(IMX290_PGCTRL_REGEN | IMX290_PGCTRL_THRU | IMX290_PGCTRL_MODE(ctrl->val)), &ret); } else { imx290_write(imx290, IMX290_PGCTRL, 0x00, &ret); usleep_range(10000, 11000); imx290_set_black_level(imx290, format, IMX290_BLACK_LEVEL_DEFAULT, &ret); } break; default: ret = -EINVAL; break; } pm_runtime_mark_last_busy(imx290->dev); pm_runtime_put_autosuspend(imx290->dev); return ret; } static const struct v4l2_ctrl_ops imx290_ctrl_ops = { .s_ctrl = imx290_set_ctrl, }; static const char * const imx290_test_pattern_menu[] = { "Disabled", "Sequence Pattern 1", "Horizontal Color-bar Chart", "Vertical Color-bar Chart", "Sequence Pattern 2", "Gradation Pattern 1", "Gradation Pattern 2", "000/555h Toggle Pattern", }; static void imx290_ctrl_update(struct imx290 *imx290, const struct v4l2_mbus_framefmt *format, const struct imx290_mode *mode) { unsigned int hblank = mode->hmax - mode->width; unsigned int vblank = IMX290_VMAX_DEFAULT - mode->height; s64 link_freq = imx290_link_freqs_ptr(imx290)[mode->link_freq_index]; u64 pixel_rate; /* pixel rate = link_freq * 2 * nr_of_lanes / bits_per_sample */ pixel_rate = link_freq * 2 * imx290->nlanes; do_div(pixel_rate, imx290_format_info(format->code)->bpp); __v4l2_ctrl_s_ctrl(imx290->link_freq, mode->link_freq_index); __v4l2_ctrl_s_ctrl_int64(imx290->pixel_rate, pixel_rate); __v4l2_ctrl_modify_range(imx290->hblank, hblank, hblank, 1, hblank); __v4l2_ctrl_modify_range(imx290->vblank, vblank, vblank, 1, vblank); } static int imx290_ctrl_init(struct imx290 *imx290) { struct v4l2_fwnode_device_properties props; int ret; ret = v4l2_fwnode_device_parse(imx290->dev, &props); if (ret < 0) return ret; v4l2_ctrl_handler_init(&imx290->ctrls, 9); /* * The sensor has an analog gain and a digital gain, both controlled * through a single gain value, expressed in 0.3dB increments. Values * from 0.0dB (0) to 30.0dB (100) apply analog gain only, higher values * up to 72.0dB (240) add further digital gain. Limit the range to * analog gain only, support for digital gain can be added separately * if needed. * * The IMX327 and IMX462 are largely compatible with the IMX290, but * have an analog gain range of 0.0dB to 29.4dB and 42dB of digital * gain. When support for those sensors gets added to the driver, the * gain control should be adjusted accordingly. */ v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, 0, 100, 1, 0); v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops, V4L2_CID_EXPOSURE, 1, IMX290_VMAX_DEFAULT - 2, 1, IMX290_VMAX_DEFAULT - 2); /* * Set the link frequency, pixel rate, horizontal blanking and vertical * blanking to hardcoded values, they will be updated by * imx290_ctrl_update(). */ imx290->link_freq = v4l2_ctrl_new_int_menu(&imx290->ctrls, &imx290_ctrl_ops, V4L2_CID_LINK_FREQ, imx290_link_freqs_num(imx290) - 1, 0, imx290_link_freqs_ptr(imx290)); if (imx290->link_freq) imx290->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; imx290->pixel_rate = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops, V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1); v4l2_ctrl_new_std_menu_items(&imx290->ctrls, &imx290_ctrl_ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(imx290_test_pattern_menu) - 1, 0, 0, imx290_test_pattern_menu); imx290->hblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops, V4L2_CID_HBLANK, 1, 1, 1, 1); if (imx290->hblank) imx290->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; imx290->vblank = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops, V4L2_CID_VBLANK, 1, 1, 1, 1); if (imx290->vblank) imx290->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; v4l2_ctrl_new_fwnode_properties(&imx290->ctrls, &imx290_ctrl_ops, &props); imx290->sd.ctrl_handler = &imx290->ctrls; if (imx290->ctrls.error) { ret = imx290->ctrls.error; v4l2_ctrl_handler_free(&imx290->ctrls); return ret; } return 0; } /* ---------------------------------------------------------------------------- * Subdev operations */ /* Start streaming */ static int imx290_start_streaming(struct imx290 *imx290, struct v4l2_subdev_state *state) { const struct v4l2_mbus_framefmt *format; int ret; /* Set init register settings */ ret = imx290_set_register_array(imx290, imx290_global_init_settings, ARRAY_SIZE( imx290_global_init_settings)); if (ret < 0) { dev_err(imx290->dev, "Could not set init registers\n"); return ret; } /* Set data lane count */ ret = imx290_set_data_lanes(imx290); if (ret < 0) { dev_err(imx290->dev, "Could not set data lanes\n"); return ret; } /* Apply the register values related to current frame format */ format = v4l2_subdev_get_pad_format(&imx290->sd, state, 0); ret = imx290_setup_format(imx290, format); if (ret < 0) { dev_err(imx290->dev, "Could not set frame format\n"); return ret; } /* Apply default values of current mode */ ret = imx290_set_register_array(imx290, imx290->current_mode->data, imx290->current_mode->data_size); if (ret < 0) { dev_err(imx290->dev, "Could not set current mode\n"); return ret; } ret = imx290_write(imx290, IMX290_HMAX, imx290->current_mode->hmax, NULL); if (ret) return ret; /* Apply customized values from user */ ret = __v4l2_ctrl_handler_setup(imx290->sd.ctrl_handler); if (ret) { dev_err(imx290->dev, "Could not sync v4l2 controls\n"); return ret; } imx290_write(imx290, IMX290_STANDBY, 0x00, &ret); msleep(30); /* Start streaming */ return imx290_write(imx290, IMX290_XMSTA, 0x00, &ret); } /* Stop streaming */ static int imx290_stop_streaming(struct imx290 *imx290) { int ret = 0; imx290_write(imx290, IMX290_STANDBY, 0x01, &ret); msleep(30); return imx290_write(imx290, IMX290_XMSTA, 0x01, &ret); } static int imx290_set_stream(struct v4l2_subdev *sd, int enable) { struct imx290 *imx290 = to_imx290(sd); struct v4l2_subdev_state *state; int ret = 0; state = v4l2_subdev_lock_and_get_active_state(sd); if (enable) { ret = pm_runtime_resume_and_get(imx290->dev); if (ret < 0) goto unlock; ret = imx290_start_streaming(imx290, state); if (ret) { dev_err(imx290->dev, "Start stream failed\n"); pm_runtime_put_sync(imx290->dev); goto unlock; } } else { imx290_stop_streaming(imx290); pm_runtime_mark_last_busy(imx290->dev); pm_runtime_put_autosuspend(imx290->dev); } unlock: v4l2_subdev_unlock_state(state); return ret; } static int imx290_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(imx290_formats)) return -EINVAL; code->code = imx290_formats[code->index].code; return 0; } static int imx290_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { const struct imx290 *imx290 = to_imx290(sd); const struct imx290_mode *imx290_modes = imx290_modes_ptr(imx290); if (!imx290_format_info(fse->code)) return -EINVAL; if (fse->index >= imx290_modes_num(imx290)) return -EINVAL; fse->min_width = imx290_modes[fse->index].width; fse->max_width = imx290_modes[fse->index].width; fse->min_height = imx290_modes[fse->index].height; fse->max_height = imx290_modes[fse->index].height; return 0; } static int imx290_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct imx290 *imx290 = to_imx290(sd); const struct imx290_mode *mode; struct v4l2_mbus_framefmt *format; mode = v4l2_find_nearest_size(imx290_modes_ptr(imx290), imx290_modes_num(imx290), width, height, fmt->format.width, fmt->format.height); fmt->format.width = mode->width; fmt->format.height = mode->height; if (!imx290_format_info(fmt->format.code)) fmt->format.code = imx290_formats[0].code; fmt->format.field = V4L2_FIELD_NONE; format = v4l2_subdev_get_pad_format(sd, sd_state, 0); if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { imx290->current_mode = mode; imx290_ctrl_update(imx290, &fmt->format, mode); } *format = fmt->format; return 0; } static int imx290_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { struct v4l2_mbus_framefmt *format; switch (sel->target) { case V4L2_SEL_TGT_CROP: { format = v4l2_subdev_get_pad_format(sd, sd_state, 0); sel->r.top = IMX920_PIXEL_ARRAY_MARGIN_TOP + (IMX290_PIXEL_ARRAY_RECORDING_HEIGHT - format->height) / 2; sel->r.left = IMX920_PIXEL_ARRAY_MARGIN_LEFT + (IMX290_PIXEL_ARRAY_RECORDING_WIDTH - format->width) / 2; sel->r.width = format->width; sel->r.height = format->height; return 0; } case V4L2_SEL_TGT_NATIVE_SIZE: case V4L2_SEL_TGT_CROP_BOUNDS: sel->r.top = 0; sel->r.left = 0; sel->r.width = IMX290_PIXEL_ARRAY_WIDTH; sel->r.height = IMX290_PIXEL_ARRAY_HEIGHT; return 0; case V4L2_SEL_TGT_CROP_DEFAULT: sel->r.top = IMX920_PIXEL_ARRAY_MARGIN_TOP; sel->r.left = IMX920_PIXEL_ARRAY_MARGIN_LEFT; sel->r.width = IMX290_PIXEL_ARRAY_RECORDING_WIDTH; sel->r.height = IMX290_PIXEL_ARRAY_RECORDING_HEIGHT; return 0; default: return -EINVAL; } } static int imx290_entity_init_cfg(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state) { struct v4l2_subdev_format fmt = { .which = V4L2_SUBDEV_FORMAT_TRY, .format = { .width = 1920, .height = 1080, }, }; imx290_set_fmt(subdev, sd_state, &fmt); return 0; } static const struct v4l2_subdev_video_ops imx290_video_ops = { .s_stream = imx290_set_stream, }; static const struct v4l2_subdev_pad_ops imx290_pad_ops = { .init_cfg = imx290_entity_init_cfg, .enum_mbus_code = imx290_enum_mbus_code, .enum_frame_size = imx290_enum_frame_size, .get_fmt = v4l2_subdev_get_fmt, .set_fmt = imx290_set_fmt, .get_selection = imx290_get_selection, }; static const struct v4l2_subdev_ops imx290_subdev_ops = { .video = &imx290_video_ops, .pad = &imx290_pad_ops, }; static const struct media_entity_operations imx290_subdev_entity_ops = { .link_validate = v4l2_subdev_link_validate, }; static int imx290_subdev_init(struct imx290 *imx290) { struct i2c_client *client = to_i2c_client(imx290->dev); const struct v4l2_mbus_framefmt *format; struct v4l2_subdev_state *state; int ret; imx290->current_mode = &imx290_modes_ptr(imx290)[0]; v4l2_i2c_subdev_init(&imx290->sd, client, &imx290_subdev_ops); imx290->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; imx290->sd.dev = imx290->dev; imx290->sd.entity.ops = &imx290_subdev_entity_ops; imx290->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; imx290->pad.flags = MEDIA_PAD_FL_SOURCE; ret = media_entity_pads_init(&imx290->sd.entity, 1, &imx290->pad); if (ret < 0) { dev_err(imx290->dev, "Could not register media entity\n"); return ret; } ret = imx290_ctrl_init(imx290); if (ret < 0) { dev_err(imx290->dev, "Control initialization error %d\n", ret); goto err_media; } imx290->sd.state_lock = imx290->ctrls.lock; ret = v4l2_subdev_init_finalize(&imx290->sd); if (ret < 0) { dev_err(imx290->dev, "subdev initialization error %d\n", ret); goto err_ctrls; } state = v4l2_subdev_lock_and_get_active_state(&imx290->sd); format = v4l2_subdev_get_pad_format(&imx290->sd, state, 0); imx290_ctrl_update(imx290, format, imx290->current_mode); v4l2_subdev_unlock_state(state); return 0; err_ctrls: v4l2_ctrl_handler_free(&imx290->ctrls); err_media: media_entity_cleanup(&imx290->sd.entity); return ret; } static void imx290_subdev_cleanup(struct imx290 *imx290) { v4l2_subdev_cleanup(&imx290->sd); media_entity_cleanup(&imx290->sd.entity); v4l2_ctrl_handler_free(&imx290->ctrls); } /* ---------------------------------------------------------------------------- * Power management */ static int imx290_power_on(struct imx290 *imx290) { int ret; ret = clk_prepare_enable(imx290->xclk); if (ret) { dev_err(imx290->dev, "Failed to enable clock\n"); return ret; } ret = regulator_bulk_enable(ARRAY_SIZE(imx290->supplies), imx290->supplies); if (ret) { dev_err(imx290->dev, "Failed to enable regulators\n"); clk_disable_unprepare(imx290->xclk); return ret; } usleep_range(1, 2); gpiod_set_value_cansleep(imx290->rst_gpio, 0); usleep_range(30000, 31000); return 0; } static void imx290_power_off(struct imx290 *imx290) { clk_disable_unprepare(imx290->xclk); gpiod_set_value_cansleep(imx290->rst_gpio, 1); regulator_bulk_disable(ARRAY_SIZE(imx290->supplies), imx290->supplies); } static int imx290_runtime_resume(struct device *dev) { struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx290 *imx290 = to_imx290(sd); return imx290_power_on(imx290); } static int imx290_runtime_suspend(struct device *dev) { struct v4l2_subdev *sd = dev_get_drvdata(dev); struct imx290 *imx290 = to_imx290(sd); imx290_power_off(imx290); return 0; } static const struct dev_pm_ops imx290_pm_ops = { RUNTIME_PM_OPS(imx290_runtime_suspend, imx290_runtime_resume, NULL) }; /* ---------------------------------------------------------------------------- * Probe & remove */ static const struct regmap_config imx290_regmap_config = { .reg_bits = 16, .val_bits = 8, }; static const char * const imx290_supply_name[IMX290_NUM_SUPPLIES] = { "vdda", "vddd", "vdddo", }; static int imx290_get_regulators(struct device *dev, struct imx290 *imx290) { unsigned int i; for (i = 0; i < ARRAY_SIZE(imx290->supplies); i++) imx290->supplies[i].supply = imx290_supply_name[i]; return devm_regulator_bulk_get(dev, ARRAY_SIZE(imx290->supplies), imx290->supplies); } static int imx290_init_clk(struct imx290 *imx290) { u32 xclk_freq; int ret; ret = fwnode_property_read_u32(dev_fwnode(imx290->dev), "clock-frequency", &xclk_freq); if (ret) { dev_err(imx290->dev, "Could not get xclk frequency\n"); return ret; } /* external clock must be 37.125 MHz */ if (xclk_freq != 37125000) { dev_err(imx290->dev, "External clock frequency %u is not supported\n", xclk_freq); return -EINVAL; } ret = clk_set_rate(imx290->xclk, xclk_freq); if (ret) { dev_err(imx290->dev, "Could not set xclk frequency\n"); return ret; } return 0; } /* * Returns 0 if all link frequencies used by the driver for the given number * of MIPI data lanes are mentioned in the device tree, or the value of the * first missing frequency otherwise. */ static s64 imx290_check_link_freqs(const struct imx290 *imx290, const struct v4l2_fwnode_endpoint *ep) { int i, j; const s64 *freqs = imx290_link_freqs_ptr(imx290); int freqs_count = imx290_link_freqs_num(imx290); for (i = 0; i < freqs_count; i++) { for (j = 0; j < ep->nr_of_link_frequencies; j++) if (freqs[i] == ep->link_frequencies[j]) break; if (j == ep->nr_of_link_frequencies) return freqs[i]; } return 0; } static int imx290_parse_dt(struct imx290 *imx290) { /* Only CSI2 is supported for now: */ struct v4l2_fwnode_endpoint ep = { .bus_type = V4L2_MBUS_CSI2_DPHY }; struct fwnode_handle *endpoint; int ret; s64 fq; endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(imx290->dev), NULL); if (!endpoint) { dev_err(imx290->dev, "Endpoint node not found\n"); return -EINVAL; } ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &ep); fwnode_handle_put(endpoint); if (ret == -ENXIO) { dev_err(imx290->dev, "Unsupported bus type, should be CSI2\n"); goto done; } else if (ret) { dev_err(imx290->dev, "Parsing endpoint node failed\n"); goto done; } /* Get number of data lanes */ imx290->nlanes = ep.bus.mipi_csi2.num_data_lanes; if (imx290->nlanes != 2 && imx290->nlanes != 4) { dev_err(imx290->dev, "Invalid data lanes: %d\n", imx290->nlanes); ret = -EINVAL; goto done; } dev_dbg(imx290->dev, "Using %u data lanes\n", imx290->nlanes); if (!ep.nr_of_link_frequencies) { dev_err(imx290->dev, "link-frequency property not found in DT\n"); ret = -EINVAL; goto done; } /* Check that link frequences for all the modes are in device tree */ fq = imx290_check_link_freqs(imx290, &ep); if (fq) { dev_err(imx290->dev, "Link frequency of %lld is not supported\n", fq); ret = -EINVAL; goto done; } ret = 0; done: v4l2_fwnode_endpoint_free(&ep); return ret; } static int imx290_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct imx290 *imx290; int ret; imx290 = devm_kzalloc(dev, sizeof(*imx290), GFP_KERNEL); if (!imx290) return -ENOMEM; imx290->dev = dev; imx290->regmap = devm_regmap_init_i2c(client, &imx290_regmap_config); if (IS_ERR(imx290->regmap)) { dev_err(dev, "Unable to initialize I2C\n"); return -ENODEV; } ret = imx290_parse_dt(imx290); if (ret) return ret; /* Acquire resources. */ imx290->xclk = devm_clk_get(dev, "xclk"); if (IS_ERR(imx290->xclk)) return dev_err_probe(dev, PTR_ERR(imx290->xclk), "Could not get xclk"); ret = imx290_get_regulators(dev, imx290); if (ret < 0) return dev_err_probe(dev, ret, "Cannot get regulators\n"); imx290->rst_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(imx290->rst_gpio)) return dev_err_probe(dev, PTR_ERR(imx290->rst_gpio), "Cannot get reset gpio\n"); /* Initialize external clock frequency. */ ret = imx290_init_clk(imx290); if (ret) return ret; /* * Enable power management. The driver supports runtime PM, but needs to * work when runtime PM is disabled in the kernel. To that end, power * the sensor on manually here. */ ret = imx290_power_on(imx290); if (ret < 0) { dev_err(dev, "Could not power on the device\n"); return ret; } /* * Enable runtime PM with autosuspend. As the device has been powered * manually, mark it as active, and increase the usage count without * resuming the device. */ pm_runtime_set_active(dev); pm_runtime_get_noresume(dev); pm_runtime_enable(dev); pm_runtime_set_autosuspend_delay(dev, 1000); pm_runtime_use_autosuspend(dev); /* Initialize the V4L2 subdev. */ ret = imx290_subdev_init(imx290); if (ret) goto err_pm; /* * Finally, register the V4L2 subdev. This must be done after * initializing everything as the subdev can be used immediately after * being registered. */ ret = v4l2_async_register_subdev(&imx290->sd); if (ret < 0) { dev_err(dev, "Could not register v4l2 device\n"); goto err_subdev; } /* * Decrease the PM usage count. The device will get suspended after the * autosuspend delay, turning the power off. */ pm_runtime_mark_last_busy(dev); pm_runtime_put_autosuspend(dev); return 0; err_subdev: imx290_subdev_cleanup(imx290); err_pm: pm_runtime_disable(dev); pm_runtime_put_noidle(dev); imx290_power_off(imx290); return ret; } static void imx290_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct imx290 *imx290 = to_imx290(sd); v4l2_async_unregister_subdev(sd); imx290_subdev_cleanup(imx290); /* * Disable runtime PM. In case runtime PM is disabled in the kernel, * make sure to turn power off manually. */ pm_runtime_disable(imx290->dev); if (!pm_runtime_status_suspended(imx290->dev)) imx290_power_off(imx290); pm_runtime_set_suspended(imx290->dev); } static const struct of_device_id imx290_of_match[] = { { .compatible = "sony,imx290" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, imx290_of_match); static struct i2c_driver imx290_i2c_driver = { .probe_new = imx290_probe, .remove = imx290_remove, .driver = { .name = "imx290", .pm = pm_ptr(&imx290_pm_ops), .of_match_table = imx290_of_match, }, }; module_i2c_driver(imx290_i2c_driver); MODULE_DESCRIPTION("Sony IMX290 CMOS Image Sensor Driver"); MODULE_AUTHOR("FRAMOS GmbH"); MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>"); MODULE_LICENSE("GPL v2");
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