| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Tommaso Merciai | 11625 | 99.91% | 6 | 75.00% |
| Laurent Pinchart | 9 | 0.08% | 1 | 12.50% |
| Colin Ian King | 1 | 0.01% | 1 | 12.50% |
| Total | 11635 | 8 |
// SPDX-License-Identifier: GPL-2.0 /* * Allied Vision Technologies GmbH Alvium camera driver * * Copyright (C) 2023 Tommaso Merciai * Copyright (C) 2023 Martin Hecht * Copyright (C) 2023 Avnet EMG GmbH */ #include <linux/i2c.h> #include <linux/module.h> #include <linux/pm_runtime.h> #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <media/mipi-csi2.h> #include <media/v4l2-async.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-event.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-subdev.h> #include "alvium-csi2.h" static const struct v4l2_mbus_framefmt alvium_csi2_default_fmt = { .code = MEDIA_BUS_FMT_UYVY8_1X16, .width = 640, .height = 480, .colorspace = V4L2_COLORSPACE_SRGB, .ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(V4L2_COLORSPACE_SRGB), .quantization = V4L2_QUANTIZATION_FULL_RANGE, .xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(V4L2_COLORSPACE_SRGB), .field = V4L2_FIELD_NONE, }; static const struct alvium_pixfmt alvium_csi2_fmts[] = { { /* UYVY8_2X8 */ .id = ALVIUM_FMT_UYVY8_2X8, .code = MEDIA_BUS_FMT_UYVY8_2X8, .colorspace = V4L2_COLORSPACE_SRGB, .fmt_av_bit = ALVIUM_BIT_YUV422_8, .bay_av_bit = ALVIUM_BIT_BAY_NONE, .mipi_fmt_regval = MIPI_CSI2_DT_YUV422_8B, .bay_fmt_regval = -1, .is_raw = 0, }, { /* UYVY8_1X16 */ .id = ALVIUM_FMT_UYVY8_1X16, .code = MEDIA_BUS_FMT_UYVY8_1X16, .colorspace = V4L2_COLORSPACE_SRGB, .fmt_av_bit = ALVIUM_BIT_YUV422_8, .bay_av_bit = ALVIUM_BIT_BAY_NONE, .mipi_fmt_regval = MIPI_CSI2_DT_YUV422_8B, .bay_fmt_regval = -1, .is_raw = 0, }, { /* YUYV8_1X16 */ .id = ALVIUM_FMT_YUYV8_1X16, .code = MEDIA_BUS_FMT_YUYV8_1X16, .colorspace = V4L2_COLORSPACE_SRGB, .fmt_av_bit = ALVIUM_BIT_YUV422_8, .bay_av_bit = ALVIUM_BIT_BAY_NONE, .mipi_fmt_regval = MIPI_CSI2_DT_YUV422_8B, .bay_fmt_regval = -1, .is_raw = 0, }, { /* YUYV8_2X8 */ .id = ALVIUM_FMT_YUYV8_2X8, .code = MEDIA_BUS_FMT_YUYV8_2X8, .colorspace = V4L2_COLORSPACE_SRGB, .fmt_av_bit = ALVIUM_BIT_YUV422_8, .bay_av_bit = ALVIUM_BIT_BAY_NONE, .mipi_fmt_regval = MIPI_CSI2_DT_YUV422_8B, .bay_fmt_regval = -1, .is_raw = 0, }, { /* YUYV10_1X20 */ .id = ALVIUM_FMT_YUYV10_1X20, .code = MEDIA_BUS_FMT_YUYV10_1X20, .colorspace = V4L2_COLORSPACE_SRGB, .fmt_av_bit = ALVIUM_BIT_YUV422_10, .bay_av_bit = ALVIUM_BIT_BAY_NONE, .mipi_fmt_regval = MIPI_CSI2_DT_YUV422_10B, .bay_fmt_regval = -1, .is_raw = 0, }, { /* RGB888_1X24 */ .id = ALVIUM_FMT_RGB888_1X24, .code = MEDIA_BUS_FMT_RGB888_1X24, .colorspace = V4L2_COLORSPACE_SRGB, .fmt_av_bit = ALVIUM_BIT_RGB888, .bay_av_bit = ALVIUM_BIT_BAY_NONE, .mipi_fmt_regval = MIPI_CSI2_DT_RGB888, .bay_fmt_regval = -1, .is_raw = 0, }, { /* RBG888_1X24 */ .id = ALVIUM_FMT_RBG888_1X24, .code = MEDIA_BUS_FMT_RBG888_1X24, .colorspace = V4L2_COLORSPACE_SRGB, .fmt_av_bit = ALVIUM_BIT_RGB888, .bay_av_bit = ALVIUM_BIT_BAY_NONE, .mipi_fmt_regval = MIPI_CSI2_DT_RGB888, .bay_fmt_regval = -1, .is_raw = 0, }, { /* BGR888_1X24 */ .id = ALVIUM_FMT_BGR888_1X24, .code = MEDIA_BUS_FMT_BGR888_1X24, .colorspace = V4L2_COLORSPACE_SRGB, .fmt_av_bit = ALVIUM_BIT_RGB888, .bay_av_bit = ALVIUM_BIT_BAY_NONE, .mipi_fmt_regval = MIPI_CSI2_DT_RGB888, .bay_fmt_regval = -1, .is_raw = 0, }, { /* RGB888_3X8 */ .id = ALVIUM_FMT_RGB888_3X8, .code = MEDIA_BUS_FMT_RGB888_3X8, .colorspace = V4L2_COLORSPACE_SRGB, .fmt_av_bit = ALVIUM_BIT_RGB888, .bay_av_bit = ALVIUM_BIT_BAY_NONE, .mipi_fmt_regval = MIPI_CSI2_DT_RGB888, .bay_fmt_regval = -1, .is_raw = 0, }, { /* Y8_1X8 */ .id = ALVIUM_FMT_Y8_1X8, .code = MEDIA_BUS_FMT_Y8_1X8, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW8, .bay_av_bit = ALVIUM_BIT_BAY_MONO, .mipi_fmt_regval = MIPI_CSI2_DT_RAW8, .bay_fmt_regval = 0x00, .is_raw = 1, }, { /* SGRBG8_1X8 */ .id = ALVIUM_FMT_SGRBG8_1X8, .code = MEDIA_BUS_FMT_SGRBG8_1X8, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW8, .bay_av_bit = ALVIUM_BIT_BAY_GR, .mipi_fmt_regval = MIPI_CSI2_DT_RAW8, .bay_fmt_regval = 0x01, .is_raw = 1, }, { /* SRGGB8_1X8 */ .id = ALVIUM_FMT_SRGGB8_1X8, .code = MEDIA_BUS_FMT_SRGGB8_1X8, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW8, .bay_av_bit = ALVIUM_BIT_BAY_RG, .mipi_fmt_regval = MIPI_CSI2_DT_RAW8, .bay_fmt_regval = 0x02, .is_raw = 1, }, { /* SGBRG8_1X8 */ .id = ALVIUM_FMT_SGBRG8_1X8, .code = MEDIA_BUS_FMT_SGBRG8_1X8, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW8, .bay_av_bit = ALVIUM_BIT_BAY_GB, .mipi_fmt_regval = MIPI_CSI2_DT_RAW8, .bay_fmt_regval = 0x03, .is_raw = 1, }, { /* SBGGR8_1X8 */ .id = ALVIUM_FMT_SBGGR8_1X8, .code = MEDIA_BUS_FMT_SBGGR8_1X8, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW8, .bay_av_bit = ALVIUM_BIT_BAY_BG, .mipi_fmt_regval = MIPI_CSI2_DT_RAW8, .bay_fmt_regval = 0x04, .is_raw = 1, }, { /* Y10_1X10 */ .id = ALVIUM_FMT_Y10_1X10, .code = MEDIA_BUS_FMT_Y10_1X10, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW10, .bay_av_bit = ALVIUM_BIT_BAY_MONO, .mipi_fmt_regval = MIPI_CSI2_DT_RAW10, .bay_fmt_regval = 0x00, .is_raw = 1, }, { /* SGRBG10_1X10 */ .id = ALVIUM_FMT_SGRBG10_1X10, .code = MEDIA_BUS_FMT_SGRBG10_1X10, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW10, .bay_av_bit = ALVIUM_BIT_BAY_GR, .mipi_fmt_regval = MIPI_CSI2_DT_RAW10, .bay_fmt_regval = 0x01, .is_raw = 1, }, { /* SRGGB10_1X10 */ .id = ALVIUM_FMT_SRGGB10_1X10, .code = MEDIA_BUS_FMT_SRGGB10_1X10, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW10, .bay_av_bit = ALVIUM_BIT_BAY_RG, .mipi_fmt_regval = MIPI_CSI2_DT_RAW10, .bay_fmt_regval = 0x02, .is_raw = 1, }, { /* SGBRG10_1X10 */ .id = ALVIUM_FMT_SGBRG10_1X10, .code = MEDIA_BUS_FMT_SGBRG10_1X10, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW10, .bay_av_bit = ALVIUM_BIT_BAY_GB, .mipi_fmt_regval = MIPI_CSI2_DT_RAW10, .bay_fmt_regval = 0x03, .is_raw = 1, }, { /* SBGGR10_1X10 */ .id = ALVIUM_FMT_SBGGR10_1X10, .code = MEDIA_BUS_FMT_SBGGR10_1X10, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW10, .bay_av_bit = ALVIUM_BIT_BAY_BG, .mipi_fmt_regval = MIPI_CSI2_DT_RAW10, .bay_fmt_regval = 0x04, .is_raw = 1, }, { /* Y12_1X12 */ .id = ALVIUM_FMT_Y12_1X12, .code = MEDIA_BUS_FMT_Y12_1X12, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW12, .bay_av_bit = ALVIUM_BIT_BAY_MONO, .mipi_fmt_regval = MIPI_CSI2_DT_RAW12, .bay_fmt_regval = 0x00, .is_raw = 1, }, { /* SGRBG12_1X12 */ .id = ALVIUM_FMT_SGRBG12_1X12, .code = MEDIA_BUS_FMT_SGRBG12_1X12, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW12, .bay_av_bit = ALVIUM_BIT_BAY_GR, .mipi_fmt_regval = MIPI_CSI2_DT_RAW12, .bay_fmt_regval = 0x01, .is_raw = 1, }, { /* SRGGB12_1X12 */ .id = ALVIUM_FMT_SRGGB12_1X12, .code = MEDIA_BUS_FMT_SRGGB12_1X12, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW12, .bay_av_bit = ALVIUM_BIT_BAY_RG, .mipi_fmt_regval = MIPI_CSI2_DT_RAW12, .bay_fmt_regval = 0x02, .is_raw = 1, }, { /* SGBRG12_1X12 */ .id = ALVIUM_FMT_SGBRG12_1X12, .code = MEDIA_BUS_FMT_SGBRG12_1X12, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW12, .bay_av_bit = ALVIUM_BIT_BAY_GB, .mipi_fmt_regval = MIPI_CSI2_DT_RAW12, .bay_fmt_regval = 0x03, .is_raw = 1, }, { /* SBGGR12_1X12 */ .id = ALVIUM_FMT_SBGGR12_1X12, .code = MEDIA_BUS_FMT_SBGGR12_1X12, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW12, .bay_av_bit = ALVIUM_BIT_BAY_BG, .mipi_fmt_regval = MIPI_CSI2_DT_RAW12, .bay_fmt_regval = 0x04, .is_raw = 1, }, { /* SBGGR14_1X14 */ .id = ALVIUM_FMT_SBGGR14_1X14, .code = MEDIA_BUS_FMT_SBGGR14_1X14, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW14, .bay_av_bit = ALVIUM_BIT_BAY_GR, .mipi_fmt_regval = MIPI_CSI2_DT_RAW14, .bay_fmt_regval = 0x01, .is_raw = 1, }, { /* SGBRG14_1X14 */ .id = ALVIUM_FMT_SGBRG14_1X14, .code = MEDIA_BUS_FMT_SGBRG14_1X14, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW14, .bay_av_bit = ALVIUM_BIT_BAY_RG, .mipi_fmt_regval = MIPI_CSI2_DT_RAW14, .bay_fmt_regval = 0x02, .is_raw = 1, }, { /* SRGGB14_1X14 */ .id = ALVIUM_FMT_SRGGB14_1X14, .code = MEDIA_BUS_FMT_SRGGB14_1X14, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW14, .bay_av_bit = ALVIUM_BIT_BAY_GB, .mipi_fmt_regval = MIPI_CSI2_DT_RAW14, .bay_fmt_regval = 0x03, .is_raw = 1, }, { /* SGRBG14_1X14 */ .id = ALVIUM_FMT_SGRBG14_1X14, .code = MEDIA_BUS_FMT_SGRBG14_1X14, .colorspace = V4L2_COLORSPACE_RAW, .fmt_av_bit = ALVIUM_BIT_RAW14, .bay_av_bit = ALVIUM_BIT_BAY_BG, .mipi_fmt_regval = MIPI_CSI2_DT_RAW14, .bay_fmt_regval = 0x04, .is_raw = 1, }, { /* sentinel */ } }; static int alvium_read(struct alvium_dev *alvium, u32 reg, u64 *val, int *err) { if (reg & REG_BCRM_V4L2) { reg &= ~REG_BCRM_V4L2; reg += alvium->bcrm_addr; } return cci_read(alvium->regmap, reg, val, err); } static int alvium_write(struct alvium_dev *alvium, u32 reg, u64 val, int *err) { if (reg & REG_BCRM_V4L2) { reg &= ~REG_BCRM_V4L2; reg += alvium->bcrm_addr; } return cci_write(alvium->regmap, reg, val, err); } static int alvium_write_hshake(struct alvium_dev *alvium, u32 reg, u64 val) { struct device *dev = &alvium->i2c_client->dev; u64 hshake_bit; int ret = 0; /* reset handshake bit and write alvium reg */ alvium_write(alvium, REG_BCRM_WRITE_HANDSHAKE_RW, 0, &ret); alvium_write(alvium, reg, val, &ret); if (ret) { dev_err(dev, "Fail to write reg\n"); return ret; } /* poll handshake bit since bit0 = 1 */ read_poll_timeout(alvium_read, hshake_bit, ((hshake_bit & BCRM_HANDSHAKE_W_DONE_EN_BIT) == 1), 15000, 45000, true, alvium, REG_BCRM_WRITE_HANDSHAKE_RW, &hshake_bit, &ret); if (ret) { dev_err(dev, "poll bit[0] = 1, hshake reg fail\n"); return ret; } /* reset handshake bit, write 0 to bit0 */ alvium_write(alvium, REG_BCRM_WRITE_HANDSHAKE_RW, 0, &ret); if (ret) { dev_err(dev, "Fail to reset hshake reg\n"); return ret; } /* poll handshake bit since bit0 = 0 */ read_poll_timeout(alvium_read, hshake_bit, ((hshake_bit & BCRM_HANDSHAKE_W_DONE_EN_BIT) == 0), 15000, 45000, true, alvium, REG_BCRM_WRITE_HANDSHAKE_RW, &hshake_bit, &ret); if (ret) { dev_err(dev, "poll bit[0] = 0, hshake reg fail\n"); return ret; } return 0; } static int alvium_get_bcrm_vers(struct alvium_dev *alvium) { struct device *dev = &alvium->i2c_client->dev; u64 min, maj; int ret = 0; ret = alvium_read(alvium, REG_BCRM_MINOR_VERSION_R, &min, &ret); ret = alvium_read(alvium, REG_BCRM_MAJOR_VERSION_R, &maj, &ret); if (ret) return ret; dev_info(dev, "bcrm version: %llu.%llu\n", min, maj); return 0; } static int alvium_get_fw_version(struct alvium_dev *alvium) { struct device *dev = &alvium->i2c_client->dev; u64 spec, maj, min, pat; int ret = 0; ret = alvium_read(alvium, REG_BCRM_DEVICE_FW_SPEC_VERSION_R, &spec, &ret); ret = alvium_read(alvium, REG_BCRM_DEVICE_FW_MAJOR_VERSION_R, &maj, &ret); ret = alvium_read(alvium, REG_BCRM_DEVICE_FW_MINOR_VERSION_R, &min, &ret); ret = alvium_read(alvium, REG_BCRM_DEVICE_FW_PATCH_VERSION_R, &pat, &ret); if (ret) return ret; dev_info(dev, "fw version: %llu.%llu.%llu.%llu\n", spec, maj, min, pat); return 0; } static int alvium_get_bcrm_addr(struct alvium_dev *alvium) { u64 val; int ret; ret = alvium_read(alvium, REG_BCRM_REG_ADDR_R, &val, NULL); if (ret) return ret; alvium->bcrm_addr = val; return 0; } static int alvium_is_alive(struct alvium_dev *alvium) { u64 bcrm, hbeat; int ret = 0; alvium_read(alvium, REG_BCRM_MINOR_VERSION_R, &bcrm, &ret); alvium_read(alvium, REG_BCRM_HEARTBEAT_RW, &hbeat, &ret); if (ret) return ret; return hbeat; } static void alvium_print_avail_mipi_fmt(struct alvium_dev *alvium) { struct device *dev = &alvium->i2c_client->dev; dev_dbg(dev, "avail mipi_fmt yuv420_8_leg: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV420_8_LEG]); dev_dbg(dev, "avail mipi_fmt yuv420_8: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV420_8]); dev_dbg(dev, "avail mipi_fmt yuv420_10: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV420_10]); dev_dbg(dev, "avail mipi_fmt yuv420_8_csps: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV420_8_CSPS]); dev_dbg(dev, "avail mipi_fmt yuv420_10_csps: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV420_10_CSPS]); dev_dbg(dev, "avail mipi_fmt yuv422_8: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV422_8]); dev_dbg(dev, "avail mipi_fmt yuv422_10: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV422_10]); dev_dbg(dev, "avail mipi_fmt rgb888: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_RGB888]); dev_dbg(dev, "avail mipi_fmt rgb666: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_RGB666]); dev_dbg(dev, "avail mipi_fmt rgb565: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_RGB565]); dev_dbg(dev, "avail mipi_fmt rgb555: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_RGB555]); dev_dbg(dev, "avail mipi_fmt rgb444: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_RGB444]); dev_dbg(dev, "avail mipi_fmt raw6: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_RAW6]); dev_dbg(dev, "avail mipi_fmt raw7: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_RAW7]); dev_dbg(dev, "avail mipi_fmt raw8: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_RAW8]); dev_dbg(dev, "avail mipi_fmt raw10: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_RAW10]); dev_dbg(dev, "avail mipi_fmt raw12: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_RAW12]); dev_dbg(dev, "avail mipi_fmt raw14: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_RAW14]); dev_dbg(dev, "avail mipi_fmt jpeg: %u\n", alvium->is_mipi_fmt_avail[ALVIUM_BIT_JPEG]); } static void alvium_print_avail_feat(struct alvium_dev *alvium) { struct device *dev = &alvium->i2c_client->dev; dev_dbg(dev, "feature rev_x: %u\n", alvium->avail_ft.rev_x); dev_dbg(dev, "feature rev_y: %u\n", alvium->avail_ft.rev_y); dev_dbg(dev, "feature int_autop: %u\n", alvium->avail_ft.int_autop); dev_dbg(dev, "feature black_lvl: %u\n", alvium->avail_ft.black_lvl); dev_dbg(dev, "feature gain: %u\n", alvium->avail_ft.gain); dev_dbg(dev, "feature gamma: %u\n", alvium->avail_ft.gamma); dev_dbg(dev, "feature contrast: %u\n", alvium->avail_ft.contrast); dev_dbg(dev, "feature sat: %u\n", alvium->avail_ft.sat); dev_dbg(dev, "feature hue: %u\n", alvium->avail_ft.hue); dev_dbg(dev, "feature whiteb: %u\n", alvium->avail_ft.whiteb); dev_dbg(dev, "feature sharp: %u\n", alvium->avail_ft.sharp); dev_dbg(dev, "feature auto_exp: %u\n", alvium->avail_ft.auto_exp); dev_dbg(dev, "feature auto_gain: %u\n", alvium->avail_ft.auto_gain); dev_dbg(dev, "feature auto_whiteb: %u\n", alvium->avail_ft.auto_whiteb); dev_dbg(dev, "feature dev_temp: %u\n", alvium->avail_ft.dev_temp); dev_dbg(dev, "feature acq_abort: %u\n", alvium->avail_ft.acq_abort); dev_dbg(dev, "feature acq_fr: %u\n", alvium->avail_ft.acq_fr); dev_dbg(dev, "feature fr_trigger: %u\n", alvium->avail_ft.fr_trigger); dev_dbg(dev, "feature exp_acq_line: %u\n", alvium->avail_ft.exp_acq_line); } static void alvium_print_avail_bayer(struct alvium_dev *alvium) { struct device *dev = &alvium->i2c_client->dev; dev_dbg(dev, "avail bayer mono: %u\n", alvium->is_bay_avail[ALVIUM_BIT_BAY_MONO]); dev_dbg(dev, "avail bayer gr: %u\n", alvium->is_bay_avail[ALVIUM_BIT_BAY_GR]); dev_dbg(dev, "avail bayer rg: %u\n", alvium->is_bay_avail[ALVIUM_BIT_BAY_RG]); dev_dbg(dev, "avail bayer gb: %u\n", alvium->is_bay_avail[ALVIUM_BIT_BAY_GB]); dev_dbg(dev, "avail bayer bg: %u\n", alvium->is_bay_avail[ALVIUM_BIT_BAY_BG]); } static int alvium_get_feat_inq(struct alvium_dev *alvium) { struct alvium_avail_feat *f; u64 val; int ret; ret = alvium_read(alvium, REG_BCRM_FEATURE_INQUIRY_R, &val, NULL); if (ret) return ret; f = (struct alvium_avail_feat *)&val; alvium->avail_ft = *f; alvium_print_avail_feat(alvium); return 0; } static int alvium_get_host_supp_csi_lanes(struct alvium_dev *alvium) { u64 val; int ret; ret = alvium_read(alvium, REG_BCRM_CSI2_LANE_COUNT_RW, &val, NULL); if (ret) return ret; alvium->h_sup_csi_lanes = val; return 0; } static int alvium_set_csi_lanes(struct alvium_dev *alvium) { struct device *dev = &alvium->i2c_client->dev; u64 num_lanes; int ret; num_lanes = alvium->ep.bus.mipi_csi2.num_data_lanes; if (num_lanes > alvium->h_sup_csi_lanes) return -EINVAL; ret = alvium_write_hshake(alvium, REG_BCRM_CSI2_LANE_COUNT_RW, num_lanes); if (ret) { dev_err(dev, "Fail to set csi lanes reg\n"); return ret; } return 0; } static int alvium_set_lp2hs_delay(struct alvium_dev *alvium) { struct device *dev = &alvium->i2c_client->dev; int ret = 0; /* * The purpose of this reg is force a DPhy reset * for the period described by the millisecond on * the reg, before it starts streaming. * * To be clear, with that value bigger than 0 the * Alvium forces a dphy-reset on all lanes for that period. * That means all lanes go up into low power state. * */ alvium_write(alvium, REG_BCRM_LP2HS_DELAY_RW, ALVIUM_LP2HS_DELAY_MS, &ret); if (ret) { dev_err(dev, "Fail to set lp2hs delay reg\n"); return ret; } return 0; } static int alvium_get_csi_clk_params(struct alvium_dev *alvium) { u64 min_csi_clk, max_csi_clk; int ret = 0; alvium_read(alvium, REG_BCRM_CSI2_CLOCK_MIN_R, &min_csi_clk, &ret); alvium_read(alvium, REG_BCRM_CSI2_CLOCK_MAX_R, &max_csi_clk, &ret); if (ret) return ret; alvium->min_csi_clk = min_csi_clk; alvium->max_csi_clk = max_csi_clk; return 0; } static int alvium_set_csi_clk(struct alvium_dev *alvium) { struct device *dev = &alvium->i2c_client->dev; u64 csi_clk; int ret; csi_clk = clamp(alvium->ep.link_frequencies[0], (u64)alvium->min_csi_clk, (u64)alvium->max_csi_clk); if (alvium->ep.link_frequencies[0] != (u64)csi_clk) { dev_warn(dev, "requested csi clock (%llu MHz) out of range [%u, %u] Adjusted to %llu\n", alvium->ep.link_frequencies[0], alvium->min_csi_clk, alvium->max_csi_clk, csi_clk); } ret = alvium_write_hshake(alvium, REG_BCRM_CSI2_CLOCK_RW, csi_clk); if (ret) { dev_err(dev, "Fail to set csi clock reg\n"); return ret; } alvium->link_freq = csi_clk; return 0; } static int alvium_get_img_width_params(struct alvium_dev *alvium) { u64 imgw, imgw_min, imgw_max, imgw_inc; int ret = 0; alvium_read(alvium, REG_BCRM_IMG_WIDTH_RW, &imgw, &ret); alvium_read(alvium, REG_BCRM_IMG_WIDTH_MIN_R, &imgw_min, &ret); alvium_read(alvium, REG_BCRM_IMG_WIDTH_MAX_R, &imgw_max, &ret); alvium_read(alvium, REG_BCRM_IMG_WIDTH_INC_R, &imgw_inc, &ret); if (ret) return ret; alvium->dft_img_width = imgw; alvium->img_min_width = imgw_min; alvium->img_max_width = imgw_max; alvium->img_inc_width = imgw_inc; return 0; } static int alvium_get_img_height_params(struct alvium_dev *alvium) { u64 imgh, imgh_min, imgh_max, imgh_inc; int ret = 0; alvium_read(alvium, REG_BCRM_IMG_HEIGHT_RW, &imgh, &ret); alvium_read(alvium, REG_BCRM_IMG_HEIGHT_MIN_R, &imgh_min, &ret); alvium_read(alvium, REG_BCRM_IMG_HEIGHT_MAX_R, &imgh_max, &ret); alvium_read(alvium, REG_BCRM_IMG_HEIGHT_INC_R, &imgh_inc, &ret); if (ret) return ret; alvium->dft_img_height = imgh; alvium->img_min_height = imgh_min; alvium->img_max_height = imgh_max; alvium->img_inc_height = imgh_inc; return 0; } static int alvium_set_img_width(struct alvium_dev *alvium, u32 width) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_IMG_WIDTH_RW, width); if (ret) { dev_err(dev, "Fail to set img width\n"); return ret; } return 0; } static int alvium_set_img_height(struct alvium_dev *alvium, u32 height) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_IMG_HEIGHT_RW, height); if (ret) { dev_err(dev, "Fail to set img height\n"); return ret; } return 0; } static int alvium_set_img_offx(struct alvium_dev *alvium, u32 offx) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_IMG_OFFSET_X_RW, offx); if (ret) { dev_err(dev, "Fail to set img offx\n"); return ret; } return 0; } static int alvium_set_img_offy(struct alvium_dev *alvium, u32 offy) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_IMG_OFFSET_Y_RW, offy); if (ret) { dev_err(dev, "Fail to set img offy\n"); return ret; } return 0; } static int alvium_get_offx_params(struct alvium_dev *alvium) { u64 min_offx, max_offx, inc_offx; int ret = 0; alvium_read(alvium, REG_BCRM_IMG_OFFSET_X_MIN_R, &min_offx, &ret); alvium_read(alvium, REG_BCRM_IMG_OFFSET_X_MAX_R, &max_offx, &ret); alvium_read(alvium, REG_BCRM_IMG_OFFSET_X_INC_R, &inc_offx, &ret); if (ret) return ret; alvium->min_offx = min_offx; alvium->max_offx = max_offx; alvium->inc_offx = inc_offx; return 0; } static int alvium_get_offy_params(struct alvium_dev *alvium) { u64 min_offy, max_offy, inc_offy; int ret = 0; alvium_read(alvium, REG_BCRM_IMG_OFFSET_Y_MIN_R, &min_offy, &ret); alvium_read(alvium, REG_BCRM_IMG_OFFSET_Y_MAX_R, &max_offy, &ret); alvium_read(alvium, REG_BCRM_IMG_OFFSET_Y_INC_R, &inc_offy, &ret); if (ret) return ret; alvium->min_offy = min_offy; alvium->max_offy = max_offy; alvium->inc_offy = inc_offy; return 0; } static int alvium_get_gain_params(struct alvium_dev *alvium) { u64 dft_gain, min_gain, max_gain, inc_gain; int ret = 0; alvium_read(alvium, REG_BCRM_GAIN_RW, &dft_gain, &ret); alvium_read(alvium, REG_BCRM_GAIN_MIN_R, &min_gain, &ret); alvium_read(alvium, REG_BCRM_GAIN_MAX_R, &max_gain, &ret); alvium_read(alvium, REG_BCRM_GAIN_INC_R, &inc_gain, &ret); if (ret) return ret; alvium->dft_gain = dft_gain; alvium->min_gain = min_gain; alvium->max_gain = max_gain; alvium->inc_gain = inc_gain; return 0; } static int alvium_get_exposure_params(struct alvium_dev *alvium) { u64 dft_exp, min_exp, max_exp, inc_exp; int ret = 0; alvium_read(alvium, REG_BCRM_EXPOSURE_TIME_RW, &dft_exp, &ret); alvium_read(alvium, REG_BCRM_EXPOSURE_TIME_MIN_R, &min_exp, &ret); alvium_read(alvium, REG_BCRM_EXPOSURE_TIME_MAX_R, &max_exp, &ret); alvium_read(alvium, REG_BCRM_EXPOSURE_TIME_INC_R, &inc_exp, &ret); if (ret) return ret; alvium->dft_exp = dft_exp; alvium->min_exp = min_exp; alvium->max_exp = max_exp; alvium->inc_exp = inc_exp; return 0; } static int alvium_get_red_balance_ratio_params(struct alvium_dev *alvium) { u64 dft_rb, min_rb, max_rb, inc_rb; int ret = 0; alvium_read(alvium, REG_BCRM_RED_BALANCE_RATIO_RW, &dft_rb, &ret); alvium_read(alvium, REG_BCRM_RED_BALANCE_RATIO_MIN_R, &min_rb, &ret); alvium_read(alvium, REG_BCRM_RED_BALANCE_RATIO_MAX_R, &max_rb, &ret); alvium_read(alvium, REG_BCRM_RED_BALANCE_RATIO_INC_R, &inc_rb, &ret); if (ret) return ret; alvium->dft_rbalance = dft_rb; alvium->min_rbalance = min_rb; alvium->max_rbalance = max_rb; alvium->inc_rbalance = inc_rb; return 0; } static int alvium_get_blue_balance_ratio_params(struct alvium_dev *alvium) { u64 dft_bb, min_bb, max_bb, inc_bb; int ret = 0; alvium_read(alvium, REG_BCRM_BLUE_BALANCE_RATIO_RW, &dft_bb, &ret); alvium_read(alvium, REG_BCRM_BLUE_BALANCE_RATIO_MIN_R, &min_bb, &ret); alvium_read(alvium, REG_BCRM_BLUE_BALANCE_RATIO_MAX_R, &max_bb, &ret); alvium_read(alvium, REG_BCRM_BLUE_BALANCE_RATIO_INC_R, &inc_bb, &ret); if (ret) return ret; alvium->dft_bbalance = dft_bb; alvium->min_bbalance = min_bb; alvium->max_bbalance = max_bb; alvium->inc_bbalance = inc_bb; return 0; } static int alvium_get_hue_params(struct alvium_dev *alvium) { u64 dft_hue, min_hue, max_hue, inc_hue; int ret = 0; alvium_read(alvium, REG_BCRM_HUE_RW, &dft_hue, &ret); alvium_read(alvium, REG_BCRM_HUE_MIN_R, &min_hue, &ret); alvium_read(alvium, REG_BCRM_HUE_MAX_R, &max_hue, &ret); alvium_read(alvium, REG_BCRM_HUE_INC_R, &inc_hue, &ret); if (ret) return ret; alvium->dft_hue = (s32)dft_hue; alvium->min_hue = (s32)min_hue; alvium->max_hue = (s32)max_hue; alvium->inc_hue = (s32)inc_hue; return 0; } static int alvium_get_black_lvl_params(struct alvium_dev *alvium) { u64 dft_blvl, min_blvl, max_blvl, inc_blvl; int ret = 0; alvium_read(alvium, REG_BCRM_BLACK_LEVEL_RW, &dft_blvl, &ret); alvium_read(alvium, REG_BCRM_BLACK_LEVEL_MIN_R, &min_blvl, &ret); alvium_read(alvium, REG_BCRM_BLACK_LEVEL_MAX_R, &max_blvl, &ret); alvium_read(alvium, REG_BCRM_BLACK_LEVEL_INC_R, &inc_blvl, &ret); if (ret) return ret; alvium->dft_black_lvl = (s32)dft_blvl; alvium->min_black_lvl = (s32)min_blvl; alvium->max_black_lvl = (s32)max_blvl; alvium->inc_black_lvl = (s32)inc_blvl; return 0; } static int alvium_get_gamma_params(struct alvium_dev *alvium) { u64 dft_g, min_g, max_g, inc_g; int ret = 0; alvium_read(alvium, REG_BCRM_GAMMA_RW, &dft_g, &ret); alvium_read(alvium, REG_BCRM_GAMMA_MIN_R, &min_g, &ret); alvium_read(alvium, REG_BCRM_GAMMA_MAX_R, &max_g, &ret); alvium_read(alvium, REG_BCRM_GAMMA_INC_R, &inc_g, &ret); if (ret) return ret; alvium->dft_gamma = dft_g; alvium->min_gamma = min_g; alvium->max_gamma = max_g; alvium->inc_gamma = inc_g; return 0; } static int alvium_get_sharpness_params(struct alvium_dev *alvium) { u64 dft_sh, min_sh, max_sh, inc_sh; int ret = 0; alvium_read(alvium, REG_BCRM_SHARPNESS_RW, &dft_sh, &ret); alvium_read(alvium, REG_BCRM_SHARPNESS_MIN_R, &min_sh, &ret); alvium_read(alvium, REG_BCRM_BLACK_LEVEL_MAX_R, &max_sh, &ret); alvium_read(alvium, REG_BCRM_SHARPNESS_INC_R, &inc_sh, &ret); if (ret) return ret; alvium->dft_sharp = (s32)dft_sh; alvium->min_sharp = (s32)min_sh; alvium->max_sharp = (s32)max_sh; alvium->inc_sharp = (s32)inc_sh; return 0; } static int alvium_get_contrast_params(struct alvium_dev *alvium) { u64 dft_c, min_c, max_c, inc_c; int ret = 0; alvium_read(alvium, REG_BCRM_CONTRAST_VALUE_RW, &dft_c, &ret); alvium_read(alvium, REG_BCRM_CONTRAST_VALUE_MIN_R, &min_c, &ret); alvium_read(alvium, REG_BCRM_CONTRAST_VALUE_MAX_R, &max_c, &ret); alvium_read(alvium, REG_BCRM_CONTRAST_VALUE_INC_R, &inc_c, &ret); if (ret) return ret; alvium->dft_contrast = dft_c; alvium->min_contrast = min_c; alvium->max_contrast = max_c; alvium->inc_contrast = inc_c; return 0; } static int alvium_get_saturation_params(struct alvium_dev *alvium) { u64 dft_sat, min_sat, max_sat, inc_sat; int ret = 0; alvium_read(alvium, REG_BCRM_SATURATION_RW, &dft_sat, &ret); alvium_read(alvium, REG_BCRM_SATURATION_MIN_R, &min_sat, &ret); alvium_read(alvium, REG_BCRM_SATURATION_MAX_R, &max_sat, &ret); alvium_read(alvium, REG_BCRM_SATURATION_INC_R, &inc_sat, &ret); if (ret) return ret; alvium->dft_sat = dft_sat; alvium->min_sat = min_sat; alvium->max_sat = max_sat; alvium->inc_sat = inc_sat; return 0; } static int alvium_set_bcm_mode(struct alvium_dev *alvium) { int ret = 0; alvium_write(alvium, REG_GENCP_CHANGEMODE_W, ALVIUM_BCM_MODE, &ret); alvium->bcrm_mode = ALVIUM_BCM_MODE; return ret; } static int alvium_get_mode(struct alvium_dev *alvium) { u64 bcrm_mode; int ret; ret = alvium_read(alvium, REG_GENCP_CURRENTMODE_R, &bcrm_mode, NULL); if (ret) return ret; switch (bcrm_mode) { case ALVIUM_BCM_MODE: alvium->bcrm_mode = ALVIUM_BCM_MODE; break; case ALVIUM_GENCP_MODE: alvium->bcrm_mode = ALVIUM_GENCP_MODE; break; } return 0; } static int alvium_get_avail_mipi_data_format(struct alvium_dev *alvium) { struct alvium_avail_mipi_fmt *avail_fmt; u64 val; int ret; ret = alvium_read(alvium, REG_BCRM_IMG_AVAILABLE_MIPI_DATA_FORMATS_R, &val, NULL); if (ret) return ret; avail_fmt = (struct alvium_avail_mipi_fmt *)&val; alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV420_8_LEG] = avail_fmt->yuv420_8_leg; alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV420_8] = avail_fmt->yuv420_8; alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV420_10] = avail_fmt->yuv420_10; alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV420_8_CSPS] = avail_fmt->yuv420_8_csps; alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV420_10_CSPS] = avail_fmt->yuv420_10_csps; alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV422_8] = avail_fmt->yuv422_8; alvium->is_mipi_fmt_avail[ALVIUM_BIT_YUV422_10] = avail_fmt->yuv422_10; alvium->is_mipi_fmt_avail[ALVIUM_BIT_RGB888] = avail_fmt->rgb888; alvium->is_mipi_fmt_avail[ALVIUM_BIT_RGB666] = avail_fmt->rgb666; alvium->is_mipi_fmt_avail[ALVIUM_BIT_RGB565] = avail_fmt->rgb565; alvium->is_mipi_fmt_avail[ALVIUM_BIT_RGB555] = avail_fmt->rgb555; alvium->is_mipi_fmt_avail[ALVIUM_BIT_RGB444] = avail_fmt->rgb444; alvium->is_mipi_fmt_avail[ALVIUM_BIT_RAW6] = avail_fmt->raw6; alvium->is_mipi_fmt_avail[ALVIUM_BIT_RAW7] = avail_fmt->raw7; alvium->is_mipi_fmt_avail[ALVIUM_BIT_RAW8] = avail_fmt->raw8; alvium->is_mipi_fmt_avail[ALVIUM_BIT_RAW10] = avail_fmt->raw10; alvium->is_mipi_fmt_avail[ALVIUM_BIT_RAW12] = avail_fmt->raw12; alvium->is_mipi_fmt_avail[ALVIUM_BIT_RAW14] = avail_fmt->raw14; alvium->is_mipi_fmt_avail[ALVIUM_BIT_JPEG] = avail_fmt->jpeg; alvium_print_avail_mipi_fmt(alvium); return 0; } static int alvium_setup_mipi_fmt(struct alvium_dev *alvium) { unsigned int avail_fmt_cnt = 0; unsigned int fmt = 0; size_t sz = 0; /* calculate fmt array size */ for (fmt = 0; fmt < ALVIUM_NUM_SUPP_MIPI_DATA_FMT; fmt++) { if (!alvium->is_mipi_fmt_avail[alvium_csi2_fmts[fmt].fmt_av_bit]) continue; if (!alvium_csi2_fmts[fmt].is_raw || alvium->is_bay_avail[alvium_csi2_fmts[fmt].bay_av_bit]) sz++; } /* init alvium_csi2_fmt array */ alvium->alvium_csi2_fmt_n = sz; alvium->alvium_csi2_fmt = kmalloc_array(sz, sizeof(struct alvium_pixfmt), GFP_KERNEL); if (!alvium->alvium_csi2_fmt) return -ENOMEM; /* Create the alvium_csi2 fmt array from formats available */ for (fmt = 0; fmt < ALVIUM_NUM_SUPP_MIPI_DATA_FMT; fmt++) { if (!alvium->is_mipi_fmt_avail[alvium_csi2_fmts[fmt].fmt_av_bit]) continue; if (!alvium_csi2_fmts[fmt].is_raw || alvium->is_bay_avail[alvium_csi2_fmts[fmt].bay_av_bit]) { alvium->alvium_csi2_fmt[avail_fmt_cnt] = alvium_csi2_fmts[fmt]; avail_fmt_cnt++; } } return 0; } static int alvium_set_mipi_fmt(struct alvium_dev *alvium, const struct alvium_pixfmt *pixfmt) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_IMG_MIPI_DATA_FORMAT_RW, pixfmt->mipi_fmt_regval); if (ret) { dev_err(dev, "Fail to set mipi fmt\n"); return ret; } return 0; } static int alvium_get_avail_bayer(struct alvium_dev *alvium) { struct alvium_avail_bayer *avail_bay; u64 val; int ret; ret = alvium_read(alvium, REG_BCRM_IMG_BAYER_PATTERN_INQUIRY_R, &val, NULL); if (ret) return ret; avail_bay = (struct alvium_avail_bayer *)&val; alvium->is_bay_avail[ALVIUM_BIT_BAY_MONO] = avail_bay->mono; alvium->is_bay_avail[ALVIUM_BIT_BAY_GR] = avail_bay->gr; alvium->is_bay_avail[ALVIUM_BIT_BAY_RG] = avail_bay->rg; alvium->is_bay_avail[ALVIUM_BIT_BAY_GB] = avail_bay->gb; alvium->is_bay_avail[ALVIUM_BIT_BAY_BG] = avail_bay->bg; alvium_print_avail_bayer(alvium); return 0; } static int alvium_set_bayer_pattern(struct alvium_dev *alvium, const struct alvium_pixfmt *pixfmt) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_IMG_BAYER_PATTERN_RW, pixfmt->bay_fmt_regval); if (ret) { dev_err(dev, "Fail to set bayer pattern\n"); return ret; } return 0; } static int alvium_get_frame_interval(struct alvium_dev *alvium, u64 *min_fr, u64 *max_fr) { int ret = 0; alvium_read(alvium, REG_BCRM_ACQUISITION_FRAME_RATE_MIN_R, min_fr, &ret); alvium_read(alvium, REG_BCRM_ACQUISITION_FRAME_RATE_MAX_R, max_fr, &ret); return ret; } static int alvium_set_frame_rate(struct alvium_dev *alvium, u64 fr) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_ACQUISITION_FRAME_RATE_RW, fr); if (ret) { dev_err(dev, "Fail to set frame rate lanes reg\n"); return ret; } dev_dbg(dev, "set frame rate: %llu us\n", fr); return 0; } static int alvium_set_stream_mipi(struct alvium_dev *alvium, bool on) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, on ? REG_BCRM_ACQUISITION_START_RW : REG_BCRM_ACQUISITION_STOP_RW, 0x01); if (ret) { dev_err(dev, "Fail set_stream_mipi\n"); return ret; } return 0; } static int alvium_get_gain(struct alvium_dev *alvium) { u64 gain; int ret; /* The unit is millibel (1 mB = 0.01 dB) */ ret = alvium_read(alvium, REG_BCRM_GAIN_RW, &gain, NULL); if (ret) return ret; return gain; } static int alvium_set_ctrl_gain(struct alvium_dev *alvium, int gain) { struct device *dev = &alvium->i2c_client->dev; int ret; /* The unit is millibel (1 mB = 0.01 dB) */ ret = alvium_write_hshake(alvium, REG_BCRM_GAIN_RW, (u64)gain); if (ret) { dev_err(dev, "Fail to set gain value reg\n"); return ret; } return 0; } static int alvium_set_ctrl_auto_gain(struct alvium_dev *alvium, bool on) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_GAIN_AUTO_RW, on ? 0x02 : 0x00); if (ret) { dev_err(dev, "Fail to set autogain reg\n"); return ret; } return 0; } static int alvium_get_exposure(struct alvium_dev *alvium) { u64 exp; int ret; /* Exposure time in ns */ ret = alvium_read(alvium, REG_BCRM_EXPOSURE_TIME_RW, &exp, NULL); if (ret) return ret; return exp; } static int alvium_set_ctrl_auto_exposure(struct alvium_dev *alvium, bool on) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_WHITE_BALANCE_AUTO_RW, on ? 0x02 : 0x00); if (ret) { dev_err(dev, "Fail to set autoexposure reg\n"); return ret; } return 0; } static int alvium_set_ctrl_exposure(struct alvium_dev *alvium, int exposure_ns) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_EXPOSURE_TIME_RW, (u64)exposure_ns); if (ret) { dev_err(dev, "Fail to set exposure value reg\n"); return ret; } return 0; } static int alvium_set_ctrl_blue_balance_ratio(struct alvium_dev *alvium, int blue) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_BLUE_BALANCE_RATIO_RW, (u64)blue); if (ret) { dev_err(dev, "Fail to set blue ratio value reg\n"); return ret; } return 0; } static int alvium_set_ctrl_red_balance_ratio(struct alvium_dev *alvium, int red) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_RED_BALANCE_RATIO_RW, (u64)red); if (ret) { dev_err(dev, "Fail to set red ratio value reg\n"); return ret; } return 0; } static int alvium_set_ctrl_awb(struct alvium_dev *alvium, bool on) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_WHITE_BALANCE_AUTO_RW, on ? 0x02 : 0x00); if (ret) { dev_err(dev, "Fail to set awb reg\n"); return ret; } return 0; } static int alvium_set_ctrl_hue(struct alvium_dev *alvium, int val) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_HUE_RW, (u64)val); if (ret) { dev_err(dev, "Fail to set hue value reg\n"); return ret; } return 0; } static int alvium_set_ctrl_contrast(struct alvium_dev *alvium, int val) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_CONTRAST_VALUE_RW, (u64)val); if (ret) { dev_err(dev, "Fail to set contrast value reg\n"); return ret; } return 0; } static int alvium_set_ctrl_saturation(struct alvium_dev *alvium, int val) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_SATURATION_RW, (u64)val); if (ret) { dev_err(dev, "Fail to set contrast value reg\n"); return ret; } return 0; } static int alvium_set_ctrl_gamma(struct alvium_dev *alvium, int val) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_GAMMA_RW, (u64)val); if (ret) { dev_err(dev, "Fail to set gamma value reg\n"); return ret; } return 0; } static int alvium_set_ctrl_sharpness(struct alvium_dev *alvium, int val) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_SHARPNESS_RW, (u64)val); if (ret) { dev_err(dev, "Fail to set sharpness value reg\n"); return ret; } return 0; } static int alvium_set_ctrl_hflip(struct alvium_dev *alvium, int val) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_IMG_REVERSE_X_RW, (u64)val); if (ret) { dev_err(dev, "Fail to set reverse_x value reg\n"); return ret; } return 0; } static int alvium_set_ctrl_vflip(struct alvium_dev *alvium, int val) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_write_hshake(alvium, REG_BCRM_IMG_REVERSE_Y_RW, (u64)val); if (ret) { dev_err(dev, "Fail to set reverse_y value reg\n"); return ret; } return 0; } static int alvium_get_hw_features_params(struct alvium_dev *alvium) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_get_csi_clk_params(alvium); if (ret) { dev_err(dev, "Fail to read min/max csi clock regs\n"); return ret; } ret = alvium_get_img_width_params(alvium); if (ret) { dev_err(dev, "Fail to read img width regs\n"); return ret; } ret = alvium_get_img_height_params(alvium); if (ret) { dev_err(dev, "Fail to read img height regs\n"); return ret; } ret = alvium_get_offx_params(alvium); if (ret) { dev_err(dev, "Fail to read offx regs\n"); return ret; } ret = alvium_get_offy_params(alvium); if (ret) { dev_err(dev, "Fail to read offy regs\n"); return ret; } ret = alvium_get_gain_params(alvium); if (ret) { dev_err(dev, "Fail to read gain regs\n"); return ret; } ret = alvium_get_exposure_params(alvium); if (ret) { dev_err(dev, "Fail to read min/max exp regs\n"); return ret; } ret = alvium_get_red_balance_ratio_params(alvium); if (ret) { dev_err(dev, "Fail to read red balance ratio regs\n"); return ret; } ret = alvium_get_blue_balance_ratio_params(alvium); if (ret) { dev_err(dev, "Fail to read blue balance ratio regs\n"); return ret; } ret = alvium_get_hue_params(alvium); if (ret) { dev_err(dev, "Fail to read hue regs\n"); return ret; } ret = alvium_get_contrast_params(alvium); if (ret) { dev_err(dev, "Fail to read contrast regs\n"); return ret; } ret = alvium_get_saturation_params(alvium); if (ret) { dev_err(dev, "Fail to read saturation regs\n"); return ret; } ret = alvium_get_black_lvl_params(alvium); if (ret) { dev_err(dev, "Fail to read black lvl regs\n"); return ret; } ret = alvium_get_gamma_params(alvium); if (ret) { dev_err(dev, "Fail to read gamma regs\n"); return ret; } ret = alvium_get_sharpness_params(alvium); if (ret) { dev_err(dev, "Fail to read sharpness regs\n"); return ret; } return 0; } static int alvium_get_hw_info(struct alvium_dev *alvium) { struct device *dev = &alvium->i2c_client->dev; int ret; ret = alvium_get_bcrm_vers(alvium); if (ret) { dev_err(dev, "Fail to read bcrm version reg\n"); return ret; } ret = alvium_get_bcrm_addr(alvium); if (ret) { dev_err(dev, "Fail to bcrm address reg\n"); return ret; } ret = alvium_get_fw_version(alvium); if (ret) { dev_err(dev, "Fail to read fw version reg\n"); return ret; } ret = alvium_get_host_supp_csi_lanes(alvium); if (ret) { dev_err(dev, "Fail to read host supported csi lanes reg\n"); return ret; } ret = alvium_get_feat_inq(alvium); if (ret) { dev_err(dev, "Fail to read bcrm feature inquiry reg\n"); return ret; } ret = alvium_get_hw_features_params(alvium); if (ret) { dev_err(dev, "Fail to read features params regs\n"); return ret; } ret = alvium_get_avail_mipi_data_format(alvium); if (ret) { dev_err(dev, "Fail to read available mipi data formats reg\n"); return ret; } ret = alvium_get_avail_bayer(alvium); if (ret) { dev_err(dev, "Fail to read available Bayer patterns reg\n"); return ret; } ret = alvium_get_mode(alvium); if (ret) { dev_err(dev, "Fail to get current mode reg\n"); return ret; } return 0; } static int alvium_hw_init(struct alvium_dev *alvium) { struct device *dev = &alvium->i2c_client->dev; int ret; /* Set Alvium BCM mode*/ ret = alvium_set_bcm_mode(alvium); if (ret) { dev_err(dev, "Fail to set BCM mode\n"); return ret; } ret = alvium_set_csi_lanes(alvium); if (ret) { dev_err(dev, "Fail to set csi lanes\n"); return ret; } ret = alvium_set_csi_clk(alvium); if (ret) { dev_err(dev, "Fail to set csi clk\n"); return ret; } ret = alvium_set_lp2hs_delay(alvium); if (ret) { dev_err(dev, "Fail to set lp2hs reg\n"); return ret; } return 0; } /* --------------- Subdev Operations --------------- */ static int alvium_s_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval *fi) { struct alvium_dev *alvium = sd_to_alvium(sd); struct device *dev = &alvium->i2c_client->dev; u64 req_fr, min_fr, max_fr; struct v4l2_fract *interval; int ret; if (alvium->streaming) return -EBUSY; if (fi->interval.denominator == 0) return -EINVAL; ret = alvium_get_frame_interval(alvium, &min_fr, &max_fr); if (ret) { dev_err(dev, "Fail to get frame interval\n"); return ret; } dev_dbg(dev, "fi->interval.numerator = %d\n", fi->interval.numerator); dev_dbg(dev, "fi->interval.denominator = %d\n", fi->interval.denominator); req_fr = (u64)((fi->interval.denominator * USEC_PER_SEC) / fi->interval.numerator); req_fr = clamp(req_fr, min_fr, max_fr); interval = v4l2_subdev_state_get_interval(sd_state, 0); interval->numerator = fi->interval.numerator; interval->denominator = fi->interval.denominator; if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE) return 0; return alvium_set_frame_rate(alvium, req_fr); } static int alvium_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { struct alvium_dev *alvium = sd_to_alvium(sd); if (code->index >= alvium->alvium_csi2_fmt_n) return -EINVAL; code->code = alvium->alvium_csi2_fmt[code->index].code; return 0; } static const struct alvium_pixfmt * alvium_code_to_pixfmt(struct alvium_dev *alvium, u32 code) { unsigned int i; for (i = 0; alvium->alvium_csi2_fmt[i].code; ++i) if (alvium->alvium_csi2_fmt[i].code == code) return &alvium->alvium_csi2_fmt[i]; return &alvium->alvium_csi2_fmt[0]; } static int alvium_set_mode(struct alvium_dev *alvium, struct v4l2_subdev_state *state) { struct v4l2_mbus_framefmt *fmt; struct v4l2_rect *crop; int ret; crop = v4l2_subdev_state_get_crop(state, 0); fmt = v4l2_subdev_state_get_format(state, 0); v4l_bound_align_image(&fmt->width, alvium->img_min_width, alvium->img_max_width, 0, &fmt->height, alvium->img_min_height, alvium->img_max_height, 0, 0); /* alvium don't accept negative crop left/top */ crop->left = clamp((u32)max(0, crop->left), alvium->min_offx, (u32)(alvium->img_max_width - fmt->width)); crop->top = clamp((u32)max(0, crop->top), alvium->min_offy, (u32)(alvium->img_max_height - fmt->height)); ret = alvium_set_img_width(alvium, fmt->width); if (ret) return ret; ret = alvium_set_img_height(alvium, fmt->height); if (ret) return ret; ret = alvium_set_img_offx(alvium, crop->left); if (ret) return ret; ret = alvium_set_img_offy(alvium, crop->top); if (ret) return ret; return 0; } static int alvium_set_framefmt(struct alvium_dev *alvium, struct v4l2_mbus_framefmt *format) { struct device *dev = &alvium->i2c_client->dev; const struct alvium_pixfmt *alvium_csi2_fmt; int ret = 0; alvium_csi2_fmt = alvium_code_to_pixfmt(alvium, format->code); ret = alvium_set_mipi_fmt(alvium, alvium_csi2_fmt); if (ret) return ret; if (alvium_csi2_fmt->is_raw) { ret = alvium_set_bayer_pattern(alvium, alvium_csi2_fmt); if (ret) return ret; } dev_dbg(dev, "start: %s, mipi_fmt_regval regval = 0x%llx", __func__, alvium_csi2_fmt->mipi_fmt_regval); return ret; } static int alvium_s_stream(struct v4l2_subdev *sd, int enable) { struct alvium_dev *alvium = sd_to_alvium(sd); struct i2c_client *client = v4l2_get_subdevdata(&alvium->sd); struct v4l2_mbus_framefmt *fmt; 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(&client->dev); if (ret < 0) goto out; ret = __v4l2_ctrl_handler_setup(&alvium->ctrls.handler); if (ret) goto out; ret = alvium_set_mode(alvium, state); if (ret) goto out; fmt = v4l2_subdev_state_get_format(state, 0); ret = alvium_set_framefmt(alvium, fmt); if (ret) goto out; ret = alvium_set_stream_mipi(alvium, enable); if (ret) goto out; } else { alvium_set_stream_mipi(alvium, enable); pm_runtime_mark_last_busy(&client->dev); pm_runtime_put_autosuspend(&client->dev); } alvium->streaming = !!enable; v4l2_subdev_unlock_state(state); return 0; out: pm_runtime_put(&client->dev); v4l2_subdev_unlock_state(state); return ret; } static int alvium_init_state(struct v4l2_subdev *sd, struct v4l2_subdev_state *state) { struct alvium_dev *alvium = sd_to_alvium(sd); struct alvium_mode *mode = &alvium->mode; struct v4l2_fract *interval; struct v4l2_subdev_format sd_fmt = { .which = V4L2_SUBDEV_FORMAT_TRY, .format = alvium_csi2_default_fmt, }; struct v4l2_subdev_crop sd_crop = { .which = V4L2_SUBDEV_FORMAT_TRY, .rect = { .left = mode->crop.left, .top = mode->crop.top, .width = mode->crop.width, .height = mode->crop.height, }, }; *v4l2_subdev_state_get_crop(state, 0) = sd_crop.rect; *v4l2_subdev_state_get_format(state, 0) = sd_fmt.format; /* Setup initial frame interval*/ interval = v4l2_subdev_state_get_interval(state, 0); interval->numerator = 1; interval->denominator = ALVIUM_DEFAULT_FR_HZ; return 0; } static int alvium_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { struct alvium_dev *alvium = sd_to_alvium(sd); const struct alvium_pixfmt *alvium_csi2_fmt; struct v4l2_mbus_framefmt *fmt; struct v4l2_rect *crop; fmt = v4l2_subdev_state_get_format(sd_state, 0); crop = v4l2_subdev_state_get_crop(sd_state, 0); v4l_bound_align_image(&format->format.width, alvium->img_min_width, alvium->img_max_width, 0, &format->format.height, alvium->img_min_height, alvium->img_max_height, 0, 0); /* Adjust left and top to prevent roll over sensor area */ crop->left = clamp((u32)crop->left, (u32)0, (alvium->img_max_width - fmt->width)); crop->top = clamp((u32)crop->top, (u32)0, (alvium->img_max_height - fmt->height)); /* Set also the crop width and height when set a new fmt */ crop->width = fmt->width; crop->height = fmt->height; alvium_csi2_fmt = alvium_code_to_pixfmt(alvium, format->format.code); fmt->code = alvium_csi2_fmt->code; *fmt = format->format; return 0; } static int alvium_set_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { struct alvium_dev *alvium = sd_to_alvium(sd); struct v4l2_mbus_framefmt *fmt; struct v4l2_rect *crop; if (sel->target != V4L2_SEL_TGT_CROP) return -EINVAL; crop = v4l2_subdev_state_get_crop(sd_state, 0); fmt = v4l2_subdev_state_get_format(sd_state, 0); /* * Alvium can only shift the origin of the img * then we accept only value with the same value of the actual fmt */ if (sel->r.width != fmt->width) sel->r.width = fmt->width; if (sel->r.height != fmt->height) sel->r.height = fmt->height; /* alvium don't accept negative crop left/top */ crop->left = clamp((u32)max(0, sel->r.left), alvium->min_offx, alvium->img_max_width - sel->r.width); crop->top = clamp((u32)max(0, sel->r.top), alvium->min_offy, alvium->img_max_height - sel->r.height); sel->r = *crop; return 0; } static int alvium_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { struct alvium_dev *alvium = sd_to_alvium(sd); switch (sel->target) { /* Current cropping area */ case V4L2_SEL_TGT_CROP: sel->r = *v4l2_subdev_state_get_crop(sd_state, 0); break; /* Cropping bounds */ case V4L2_SEL_TGT_NATIVE_SIZE: sel->r.top = 0; sel->r.left = 0; sel->r.width = alvium->img_max_width; sel->r.height = alvium->img_max_height; break; /* Default cropping area */ case V4L2_SEL_TGT_CROP_BOUNDS: case V4L2_SEL_TGT_CROP_DEFAULT: sel->r.top = alvium->min_offy; sel->r.left = alvium->min_offx; sel->r.width = alvium->img_max_width; sel->r.height = alvium->img_max_height; break; default: return -EINVAL; } return 0; } static int alvium_g_volatile_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = ctrl_to_sd(ctrl); struct alvium_dev *alvium = sd_to_alvium(sd); int val; switch (ctrl->id) { case V4L2_CID_GAIN: val = alvium_get_gain(alvium); if (val < 0) return val; alvium->ctrls.gain->val = val; break; case V4L2_CID_EXPOSURE: val = alvium_get_exposure(alvium); if (val < 0) return val; alvium->ctrls.exposure->val = val; break; } return 0; } static int alvium_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = ctrl_to_sd(ctrl); struct alvium_dev *alvium = sd_to_alvium(sd); struct i2c_client *client = v4l2_get_subdevdata(&alvium->sd); int ret; /* * Applying V4L2 control value only happens * when power is up for streaming */ if (!pm_runtime_get_if_in_use(&client->dev)) return 0; switch (ctrl->id) { case V4L2_CID_GAIN: ret = alvium_set_ctrl_gain(alvium, ctrl->val); break; case V4L2_CID_AUTOGAIN: ret = alvium_set_ctrl_auto_gain(alvium, ctrl->val); break; case V4L2_CID_EXPOSURE: ret = alvium_set_ctrl_exposure(alvium, ctrl->val); break; case V4L2_CID_EXPOSURE_AUTO: ret = alvium_set_ctrl_auto_exposure(alvium, ctrl->val); break; case V4L2_CID_RED_BALANCE: ret = alvium_set_ctrl_red_balance_ratio(alvium, ctrl->val); break; case V4L2_CID_BLUE_BALANCE: ret = alvium_set_ctrl_blue_balance_ratio(alvium, ctrl->val); break; case V4L2_CID_AUTO_WHITE_BALANCE: ret = alvium_set_ctrl_awb(alvium, ctrl->val); break; case V4L2_CID_HUE: ret = alvium_set_ctrl_hue(alvium, ctrl->val); break; case V4L2_CID_CONTRAST: ret = alvium_set_ctrl_contrast(alvium, ctrl->val); break; case V4L2_CID_SATURATION: ret = alvium_set_ctrl_saturation(alvium, ctrl->val); break; case V4L2_CID_GAMMA: ret = alvium_set_ctrl_gamma(alvium, ctrl->val); break; case V4L2_CID_SHARPNESS: ret = alvium_set_ctrl_sharpness(alvium, ctrl->val); break; case V4L2_CID_HFLIP: ret = alvium_set_ctrl_hflip(alvium, ctrl->val); break; case V4L2_CID_VFLIP: ret = alvium_set_ctrl_vflip(alvium, ctrl->val); break; default: ret = -EINVAL; break; } pm_runtime_put(&client->dev); return ret; } static const struct v4l2_ctrl_ops alvium_ctrl_ops = { .g_volatile_ctrl = alvium_g_volatile_ctrl, .s_ctrl = alvium_s_ctrl, }; static int alvium_ctrl_init(struct alvium_dev *alvium) { const struct v4l2_ctrl_ops *ops = &alvium_ctrl_ops; struct alvium_ctrls *ctrls = &alvium->ctrls; struct v4l2_ctrl_handler *hdl = &ctrls->handler; struct v4l2_fwnode_device_properties props; int ret; v4l2_ctrl_handler_init(hdl, 32); /* Pixel rate is fixed */ ctrls->pixel_rate = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_PIXEL_RATE, 0, ALVIUM_DEFAULT_PIXEL_RATE_MHZ, 1, ALVIUM_DEFAULT_PIXEL_RATE_MHZ); ctrls->pixel_rate->flags |= V4L2_CTRL_FLAG_READ_ONLY; /* Link freq is fixed */ ctrls->link_freq = v4l2_ctrl_new_int_menu(hdl, ops, V4L2_CID_LINK_FREQ, 0, 0, &alvium->link_freq); ctrls->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; /* Auto/manual white balance */ if (alvium->avail_ft.auto_whiteb) { ctrls->auto_wb = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1); v4l2_ctrl_auto_cluster(3, &ctrls->auto_wb, 0, false); } ctrls->blue_balance = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_BLUE_BALANCE, alvium->min_bbalance, alvium->max_bbalance, alvium->inc_bbalance, alvium->dft_bbalance); ctrls->red_balance = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_RED_BALANCE, alvium->min_rbalance, alvium->max_rbalance, alvium->inc_rbalance, alvium->dft_rbalance); /* Auto/manual exposure */ if (alvium->avail_ft.auto_exp) { ctrls->auto_exp = v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_EXPOSURE_AUTO, V4L2_EXPOSURE_MANUAL, 0, V4L2_EXPOSURE_AUTO); v4l2_ctrl_auto_cluster(2, &ctrls->auto_exp, 1, true); } ctrls->exposure = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_EXPOSURE, alvium->min_exp, alvium->max_exp, alvium->inc_exp, alvium->dft_exp); ctrls->exposure->flags |= V4L2_CTRL_FLAG_VOLATILE; /* Auto/manual gain */ if (alvium->avail_ft.auto_gain) { ctrls->auto_gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_AUTOGAIN, 0, 1, 1, 1); v4l2_ctrl_auto_cluster(2, &ctrls->auto_gain, 0, true); } if (alvium->avail_ft.gain) { ctrls->gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_GAIN, alvium->min_gain, alvium->max_gain, alvium->inc_gain, alvium->dft_gain); ctrls->gain->flags |= V4L2_CTRL_FLAG_VOLATILE; } if (alvium->avail_ft.sat) ctrls->saturation = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_SATURATION, alvium->min_sat, alvium->max_sat, alvium->inc_sat, alvium->dft_sat); if (alvium->avail_ft.hue) ctrls->hue = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_HUE, alvium->min_hue, alvium->max_hue, alvium->inc_hue, alvium->dft_hue); if (alvium->avail_ft.contrast) ctrls->contrast = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_CONTRAST, alvium->min_contrast, alvium->max_contrast, alvium->inc_contrast, alvium->dft_contrast); if (alvium->avail_ft.gamma) ctrls->gamma = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_GAMMA, alvium->min_gamma, alvium->max_gamma, alvium->inc_gamma, alvium->dft_gamma); if (alvium->avail_ft.sharp) ctrls->sharpness = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_SHARPNESS, alvium->min_sharp, alvium->max_sharp, alvium->inc_sharp, alvium->dft_sharp); if (alvium->avail_ft.rev_x) ctrls->hflip = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_HFLIP, 0, 1, 1, 0); if (alvium->avail_ft.rev_y) ctrls->vflip = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_VFLIP, 0, 1, 1, 0); if (hdl->error) { ret = hdl->error; goto free_ctrls; } ret = v4l2_fwnode_device_parse(&alvium->i2c_client->dev, &props); if (ret) goto free_ctrls; ret = v4l2_ctrl_new_fwnode_properties(hdl, ops, &props); if (ret) goto free_ctrls; alvium->sd.ctrl_handler = hdl; return 0; free_ctrls: v4l2_ctrl_handler_free(hdl); return ret; } static const struct v4l2_subdev_core_ops alvium_core_ops = { .log_status = v4l2_ctrl_subdev_log_status, .subscribe_event = v4l2_ctrl_subdev_subscribe_event, .unsubscribe_event = v4l2_event_subdev_unsubscribe, }; static const struct v4l2_subdev_video_ops alvium_video_ops = { .s_stream = alvium_s_stream, }; static const struct v4l2_subdev_pad_ops alvium_pad_ops = { .enum_mbus_code = alvium_enum_mbus_code, .get_fmt = v4l2_subdev_get_fmt, .set_fmt = alvium_set_fmt, .get_selection = alvium_get_selection, .set_selection = alvium_set_selection, .get_frame_interval = v4l2_subdev_get_frame_interval, .set_frame_interval = alvium_s_frame_interval, }; static const struct v4l2_subdev_internal_ops alvium_internal_ops = { .init_state = alvium_init_state, }; static const struct v4l2_subdev_ops alvium_subdev_ops = { .core = &alvium_core_ops, .pad = &alvium_pad_ops, .video = &alvium_video_ops, }; static int alvium_subdev_init(struct alvium_dev *alvium) { struct i2c_client *client = alvium->i2c_client; struct device *dev = &alvium->i2c_client->dev; struct v4l2_subdev *sd = &alvium->sd; int ret; /* Setup the initial mode */ alvium->mode.fmt = alvium_csi2_default_fmt; alvium->mode.width = alvium_csi2_default_fmt.width; alvium->mode.height = alvium_csi2_default_fmt.height; alvium->mode.crop.left = alvium->min_offx; alvium->mode.crop.top = alvium->min_offy; alvium->mode.crop.width = alvium_csi2_default_fmt.width; alvium->mode.crop.height = alvium_csi2_default_fmt.height; /* init alvium sd */ v4l2_i2c_subdev_init(sd, client, &alvium_subdev_ops); sd->internal_ops = &alvium_internal_ops; sd->flags |= V4L2_SUBDEV_FL_HAS_EVENTS | V4L2_SUBDEV_FL_HAS_DEVNODE; alvium->pad.flags = MEDIA_PAD_FL_SOURCE; sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; ret = media_entity_pads_init(&sd->entity, 1, &alvium->pad); if (ret) { dev_err(dev, "Could not register media entity\n"); return ret; } ret = alvium_ctrl_init(alvium); if (ret) { dev_err(dev, "Control initialization error %d\n", ret); goto entity_cleanup; } alvium->sd.state_lock = alvium->ctrls.handler.lock; ret = v4l2_subdev_init_finalize(sd); if (ret < 0) { dev_err(dev, "subdev initialization error %d\n", ret); goto err_ctrls; } return 0; err_ctrls: v4l2_ctrl_handler_free(&alvium->ctrls.handler); entity_cleanup: media_entity_cleanup(&alvium->sd.entity); return ret; } static void alvium_subdev_cleanup(struct alvium_dev *alvium) { v4l2_fwnode_endpoint_free(&alvium->ep); v4l2_subdev_cleanup(&alvium->sd); media_entity_cleanup(&alvium->sd.entity); v4l2_ctrl_handler_free(&alvium->ctrls.handler); } static int alvium_get_dt_data(struct alvium_dev *alvium) { struct device *dev = &alvium->i2c_client->dev; struct fwnode_handle *fwnode = dev_fwnode(dev); struct fwnode_handle *endpoint; if (!fwnode) return -EINVAL; /* Only CSI2 is supported for now: */ alvium->ep.bus_type = V4L2_MBUS_CSI2_DPHY; endpoint = fwnode_graph_get_endpoint_by_id(fwnode, 0, 0, 0); if (!endpoint) { dev_err(dev, "endpoint node not found\n"); return -EINVAL; } if (v4l2_fwnode_endpoint_alloc_parse(endpoint, &alvium->ep)) { dev_err(dev, "could not parse endpoint\n"); goto error_out; } if (!alvium->ep.nr_of_link_frequencies) { dev_err(dev, "no link frequencies defined"); goto error_out; } return 0; error_out: v4l2_fwnode_endpoint_free(&alvium->ep); fwnode_handle_put(endpoint); return -EINVAL; } static int alvium_set_power(struct alvium_dev *alvium, bool on) { int ret; if (!on) return regulator_disable(alvium->reg_vcc); ret = regulator_enable(alvium->reg_vcc); if (ret) return ret; /* alvium boot time 7s */ msleep(7000); return 0; } static int alvium_runtime_resume(struct device *dev) { struct v4l2_subdev *sd = dev_get_drvdata(dev); struct alvium_dev *alvium = sd_to_alvium(sd); int ret; ret = alvium_set_power(alvium, true); if (ret) return ret; ret = alvium_hw_init(alvium); if (ret) { alvium_set_power(alvium, false); return ret; } return 0; } static int alvium_runtime_suspend(struct device *dev) { struct v4l2_subdev *sd = dev_get_drvdata(dev); struct alvium_dev *alvium = sd_to_alvium(sd); alvium_set_power(alvium, false); return 0; } static const struct dev_pm_ops alvium_pm_ops = { RUNTIME_PM_OPS(alvium_runtime_suspend, alvium_runtime_resume, NULL) }; static int alvium_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct alvium_dev *alvium; int ret; alvium = devm_kzalloc(dev, sizeof(*alvium), GFP_KERNEL); if (!alvium) return -ENOMEM; alvium->i2c_client = client; alvium->regmap = devm_cci_regmap_init_i2c(client, 16); if (IS_ERR(alvium->regmap)) return PTR_ERR(alvium->regmap); ret = alvium_get_dt_data(alvium); if (ret) return ret; alvium->reg_vcc = devm_regulator_get_optional(dev, "vcc-ext-in"); if (IS_ERR(alvium->reg_vcc)) return dev_err_probe(dev, PTR_ERR(alvium->reg_vcc), "no vcc-ext-in regulator provided\n"); ret = alvium_set_power(alvium, true); if (ret) goto err_powerdown; if (!alvium_is_alive(alvium)) { ret = -ENODEV; dev_err_probe(dev, ret, "Device detection failed\n"); goto err_powerdown; } ret = alvium_get_hw_info(alvium); if (ret) { dev_err_probe(dev, ret, "get_hw_info fail\n"); goto err_powerdown; } ret = alvium_hw_init(alvium); if (ret) { dev_err_probe(dev, ret, "hw_init fail\n"); goto err_powerdown; } ret = alvium_setup_mipi_fmt(alvium); if (ret) { dev_err_probe(dev, ret, "setup_mipi_fmt fail\n"); goto err_powerdown; } /* * Enable runtime PM without autosuspend: * * Don't use pm autosuspend (alvium have ~7s boot time). * Alvium has been powered manually: * - mark it as active * - increase the usage count without resuming the device. */ pm_runtime_set_active(dev); pm_runtime_get_noresume(dev); pm_runtime_enable(dev); /* Initialize the V4L2 subdev. */ ret = alvium_subdev_init(alvium); if (ret) goto err_pm; ret = v4l2_async_register_subdev(&alvium->sd); if (ret < 0) { dev_err_probe(dev, ret, "Could not register v4l2 device\n"); goto err_subdev; } return 0; err_subdev: alvium_subdev_cleanup(alvium); err_pm: pm_runtime_disable(dev); pm_runtime_put_noidle(dev); kfree(alvium->alvium_csi2_fmt); err_powerdown: alvium_set_power(alvium, false); return ret; } static void alvium_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct alvium_dev *alvium = sd_to_alvium(sd); struct device *dev = &alvium->i2c_client->dev; v4l2_async_unregister_subdev(sd); alvium_subdev_cleanup(alvium); kfree(alvium->alvium_csi2_fmt); /* * Disable runtime PM. In case runtime PM is disabled in the kernel, * make sure to turn power off manually. */ pm_runtime_disable(dev); if (!pm_runtime_status_suspended(dev)) alvium_set_power(alvium, false); pm_runtime_set_suspended(dev); } static const struct of_device_id alvium_of_ids[] = { { .compatible = "alliedvision,alvium-csi2", }, { } }; MODULE_DEVICE_TABLE(of, alvium_of_ids); static struct i2c_driver alvium_i2c_driver = { .driver = { .name = "alvium-csi2", .pm = pm_ptr(&alvium_pm_ops), .of_match_table = alvium_of_ids, }, .probe = alvium_probe, .remove = alvium_remove, }; module_i2c_driver(alvium_i2c_driver); MODULE_DESCRIPTION("Allied Vision's Alvium Camera Driver"); MODULE_AUTHOR("Tommaso Merciai <tomm.merciai@gmail.com>"); MODULE_AUTHOR("Martin Hecht <martin.hecht@avnet.eu>"); MODULE_AUTHOR("Avnet Silica Software & Services EMEA"); MODULE_LICENSE("GPL");
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