From 20ea6adbf199097c4f5f591ffee088340630dae4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Mon, 16 May 2022 23:40:32 +0200 Subject: bcm27xx: add support for linux v5.15 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Build system: x86_64 Build-tested: bcm2708, bcm2709, bcm2710, bcm2711 Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B Signed-off-by: Marty Jones Signed-off-by: Álvaro Fernández Rojas --- .../950-0360-media-i2c-add-ov9281-driver.patch | 1218 ++++++++++++++++++++ 1 file changed, 1218 insertions(+) create mode 100644 target/linux/bcm27xx/patches-5.15/950-0360-media-i2c-add-ov9281-driver.patch (limited to 'target/linux/bcm27xx/patches-5.15/950-0360-media-i2c-add-ov9281-driver.patch') diff --git a/target/linux/bcm27xx/patches-5.15/950-0360-media-i2c-add-ov9281-driver.patch b/target/linux/bcm27xx/patches-5.15/950-0360-media-i2c-add-ov9281-driver.patch new file mode 100644 index 0000000000..7f11a6143a --- /dev/null +++ b/target/linux/bcm27xx/patches-5.15/950-0360-media-i2c-add-ov9281-driver.patch @@ -0,0 +1,1218 @@ +From 2caa809318d62cff46258e8109a904c7b43b9ff7 Mon Sep 17 00:00:00 2001 +From: Zefa Chen +Date: Fri, 17 May 2019 18:23:03 +0800 +Subject: [PATCH] media: i2c: add ov9281 driver. + +Change-Id: I7b77250bbc56d2f861450cf77271ad15f9b88ab1 +Signed-off-by: Zefa Chen +--- + drivers/media/i2c/Kconfig | 11 + + drivers/media/i2c/Makefile | 1 + + drivers/media/i2c/ov9281.c | 1171 ++++++++++++++++++++++++++++++++++++ + 3 files changed, 1183 insertions(+) + create mode 100644 drivers/media/i2c/ov9281.c + +--- a/drivers/media/i2c/Kconfig ++++ b/drivers/media/i2c/Kconfig +@@ -1164,6 +1164,17 @@ config VIDEO_OV9640 + This is a Video4Linux2 sensor driver for the OmniVision + OV9640 camera sensor. + ++config VIDEO_OV9281 ++ tristate "OmniVision OV9281 sensor support" ++ depends on I2C && VIDEO_V4L2 ++ depends on MEDIA_CAMERA_SUPPORT ++ help ++ This is a Video4Linux2 sensor-level driver for the OmniVision ++ OV9281 camera. ++ ++ To compile this driver as a module, choose M here: the ++ module will be called ov9281. ++ + config VIDEO_OV9650 + tristate "OmniVision OV9650/OV9652 sensor support" + depends on I2C && VIDEO_V4L2 +--- a/drivers/media/i2c/Makefile ++++ b/drivers/media/i2c/Makefile +@@ -84,6 +84,7 @@ obj-$(CONFIG_VIDEO_OV772X) += ov772x.o + obj-$(CONFIG_VIDEO_OV7740) += ov7740.o + obj-$(CONFIG_VIDEO_OV8856) += ov8856.o + obj-$(CONFIG_VIDEO_OV8865) += ov8865.o ++obj-$(CONFIG_VIDEO_OV9281) += ov9281.o + obj-$(CONFIG_VIDEO_OV9282) += ov9282.o + obj-$(CONFIG_VIDEO_OV9640) += ov9640.o + obj-$(CONFIG_VIDEO_OV9650) += ov9650.o +--- /dev/null ++++ b/drivers/media/i2c/ov9281.c +@@ -0,0 +1,1171 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * ov9281 driver ++ * ++ * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x0) ++ ++#ifndef V4L2_CID_DIGITAL_GAIN ++#define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN ++#endif ++ ++#define OV9281_LINK_FREQ_400MHZ 400000000 ++/* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */ ++#define OV9281_PIXEL_RATE (OV9281_LINK_FREQ_400MHZ * 2 * 2 / 10) ++#define OV9281_XVCLK_FREQ 24000000 ++ ++#define CHIP_ID 0x9281 ++#define OV9281_REG_CHIP_ID 0x300a ++ ++#define OV9281_REG_CTRL_MODE 0x0100 ++#define OV9281_MODE_SW_STANDBY 0x0 ++#define OV9281_MODE_STREAMING BIT(0) ++ ++#define OV9281_REG_EXPOSURE 0x3500 ++#define OV9281_EXPOSURE_MIN 4 ++#define OV9281_EXPOSURE_STEP 1 ++#define OV9281_VTS_MAX 0x7fff ++ ++#define OV9281_REG_GAIN_H 0x3508 ++#define OV9281_REG_GAIN_L 0x3509 ++#define OV9281_GAIN_H_MASK 0x07 ++#define OV9281_GAIN_H_SHIFT 8 ++#define OV9281_GAIN_L_MASK 0xff ++#define OV9281_GAIN_MIN 0x10 ++#define OV9281_GAIN_MAX 0xf8 ++#define OV9281_GAIN_STEP 1 ++#define OV9281_GAIN_DEFAULT 0x10 ++ ++#define OV9281_REG_TEST_PATTERN 0x5e00 ++#define OV9281_TEST_PATTERN_ENABLE 0x80 ++#define OV9281_TEST_PATTERN_DISABLE 0x0 ++ ++#define OV9281_REG_VTS 0x380e ++ ++#define REG_NULL 0xFFFF ++ ++#define OV9281_REG_VALUE_08BIT 1 ++#define OV9281_REG_VALUE_16BIT 2 ++#define OV9281_REG_VALUE_24BIT 3 ++ ++#define OV9281_LANES 2 ++#define OV9281_BITS_PER_SAMPLE 10 ++ ++#define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default" ++#define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep" ++ ++#define OV9281_NAME "ov9281" ++ ++static const char * const ov9281_supply_names[] = { ++ "avdd", /* Analog power */ ++ "dovdd", /* Digital I/O power */ ++ "dvdd", /* Digital core power */ ++}; ++ ++#define OV9281_NUM_SUPPLIES ARRAY_SIZE(ov9281_supply_names) ++ ++struct regval { ++ u16 addr; ++ u8 val; ++}; ++ ++struct ov9281_mode { ++ u32 width; ++ u32 height; ++ u32 max_fps; ++ u32 hts_def; ++ u32 vts_def; ++ u32 exp_def; ++ const struct regval *reg_list; ++}; ++ ++struct ov9281 { ++ struct i2c_client *client; ++ struct clk *xvclk; ++ struct gpio_desc *reset_gpio; ++ struct gpio_desc *pwdn_gpio; ++ struct regulator_bulk_data supplies[OV9281_NUM_SUPPLIES]; ++ ++ struct pinctrl *pinctrl; ++ struct pinctrl_state *pins_default; ++ struct pinctrl_state *pins_sleep; ++ ++ struct v4l2_subdev subdev; ++ struct media_pad pad; ++ struct v4l2_ctrl_handler ctrl_handler; ++ struct v4l2_ctrl *exposure; ++ struct v4l2_ctrl *anal_gain; ++ struct v4l2_ctrl *digi_gain; ++ struct v4l2_ctrl *hblank; ++ struct v4l2_ctrl *vblank; ++ struct v4l2_ctrl *test_pattern; ++ struct mutex mutex; ++ bool streaming; ++ bool power_on; ++ const struct ov9281_mode *cur_mode; ++ u32 module_index; ++ const char *module_facing; ++ const char *module_name; ++ const char *len_name; ++}; ++ ++#define to_ov9281(sd) container_of(sd, struct ov9281, subdev) ++ ++/* ++ * Xclk 24Mhz ++ */ ++static const struct regval ov9281_global_regs[] = { ++ {REG_NULL, 0x00}, ++}; ++ ++/* ++ * Xclk 24Mhz ++ * max_framerate 120fps ++ * mipi_datarate per lane 800Mbps ++ */ ++static const struct regval ov9281_1280x800_regs[] = { ++ {0x0103, 0x01}, ++ {0x0302, 0x32}, ++ {0x030d, 0x50}, ++ {0x030e, 0x02}, ++ {0x3001, 0x00}, ++ {0x3004, 0x00}, ++ {0x3005, 0x00}, ++ {0x3006, 0x04}, ++ {0x3011, 0x0a}, ++ {0x3013, 0x18}, ++ {0x3022, 0x01}, ++ {0x3023, 0x00}, ++ {0x302c, 0x00}, ++ {0x302f, 0x00}, ++ {0x3030, 0x04}, ++ {0x3039, 0x32}, ++ {0x303a, 0x00}, ++ {0x303f, 0x01}, ++ {0x3500, 0x00}, ++ {0x3501, 0x2a}, ++ {0x3502, 0x90}, ++ {0x3503, 0x08}, ++ {0x3505, 0x8c}, ++ {0x3507, 0x03}, ++ {0x3508, 0x00}, ++ {0x3509, 0x10}, ++ {0x3610, 0x80}, ++ {0x3611, 0xa0}, ++ {0x3620, 0x6f}, ++ {0x3632, 0x56}, ++ {0x3633, 0x78}, ++ {0x3662, 0x05}, ++ {0x3666, 0x00}, ++ {0x366f, 0x5a}, ++ {0x3680, 0x84}, ++ {0x3712, 0x80}, ++ {0x372d, 0x22}, ++ {0x3731, 0x80}, ++ {0x3732, 0x30}, ++ {0x3778, 0x00}, ++ {0x377d, 0x22}, ++ {0x3788, 0x02}, ++ {0x3789, 0xa4}, ++ {0x378a, 0x00}, ++ {0x378b, 0x4a}, ++ {0x3799, 0x20}, ++ {0x3800, 0x00}, ++ {0x3801, 0x00}, ++ {0x3802, 0x00}, ++ {0x3803, 0x00}, ++ {0x3804, 0x05}, ++ {0x3805, 0x0f}, ++ {0x3806, 0x03}, ++ {0x3807, 0x2f}, ++ {0x3808, 0x05}, ++ {0x3809, 0x00}, ++ {0x380a, 0x03}, ++ {0x380b, 0x20}, ++ {0x380c, 0x02}, ++ {0x380d, 0xd8}, ++ {0x380e, 0x03}, ++ {0x380f, 0x8e}, ++ {0x3810, 0x00}, ++ {0x3811, 0x08}, ++ {0x3812, 0x00}, ++ {0x3813, 0x08}, ++ {0x3814, 0x11}, ++ {0x3815, 0x11}, ++ {0x3820, 0x40}, ++ {0x3821, 0x00}, ++ {0x3881, 0x42}, ++ {0x38b1, 0x00}, ++ {0x3920, 0xff}, ++ {0x4003, 0x40}, ++ {0x4008, 0x04}, ++ {0x4009, 0x0b}, ++ {0x400c, 0x00}, ++ {0x400d, 0x07}, ++ {0x4010, 0x40}, ++ {0x4043, 0x40}, ++ {0x4307, 0x30}, ++ {0x4317, 0x00}, ++ {0x4501, 0x00}, ++ {0x4507, 0x00}, ++ {0x4509, 0x00}, ++ {0x450a, 0x08}, ++ {0x4601, 0x04}, ++ {0x470f, 0x00}, ++ {0x4f07, 0x00}, ++ {0x4800, 0x00}, ++ {0x5000, 0x9f}, ++ {0x5001, 0x00}, ++ {0x5e00, 0x00}, ++ {0x5d00, 0x07}, ++ {0x5d01, 0x00}, ++ {REG_NULL, 0x00}, ++}; ++ ++static const struct ov9281_mode supported_modes[] = { ++ { ++ .width = 1280, ++ .height = 800, ++ .max_fps = 120, ++ .exp_def = 0x0320, ++ .hts_def = 0x0b60,//0x2d8*4 ++ .vts_def = 0x038e, ++ .reg_list = ov9281_1280x800_regs, ++ }, ++}; ++ ++static const s64 link_freq_menu_items[] = { ++ OV9281_LINK_FREQ_400MHZ ++}; ++ ++static const char * const ov9281_test_pattern_menu[] = { ++ "Disabled", ++ "Vertical Color Bar Type 1", ++ "Vertical Color Bar Type 2", ++ "Vertical Color Bar Type 3", ++ "Vertical Color Bar Type 4" ++}; ++ ++/* Write registers up to 4 at a time */ ++static int ov9281_write_reg(struct i2c_client *client, u16 reg, ++ u32 len, u32 val) ++{ ++ u32 buf_i, val_i; ++ u8 buf[6]; ++ u8 *val_p; ++ __be32 val_be; ++ ++ if (len > 4) ++ return -EINVAL; ++ ++ buf[0] = reg >> 8; ++ buf[1] = reg & 0xff; ++ ++ val_be = cpu_to_be32(val); ++ val_p = (u8 *)&val_be; ++ buf_i = 2; ++ val_i = 4 - len; ++ ++ while (val_i < 4) ++ buf[buf_i++] = val_p[val_i++]; ++ ++ if (i2c_master_send(client, buf, len + 2) != len + 2) ++ return -EIO; ++ ++ return 0; ++} ++ ++static int ov9281_write_array(struct i2c_client *client, ++ const struct regval *regs) ++{ ++ u32 i; ++ int ret = 0; ++ ++ for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++) ++ ret = ov9281_write_reg(client, regs[i].addr, ++ OV9281_REG_VALUE_08BIT, regs[i].val); ++ ++ return ret; ++} ++ ++/* Read registers up to 4 at a time */ ++static int ov9281_read_reg(struct i2c_client *client, u16 reg, unsigned int len, ++ u32 *val) ++{ ++ struct i2c_msg msgs[2]; ++ u8 *data_be_p; ++ __be32 data_be = 0; ++ __be16 reg_addr_be = cpu_to_be16(reg); ++ int ret; ++ ++ if (len > 4 || !len) ++ return -EINVAL; ++ ++ data_be_p = (u8 *)&data_be; ++ /* Write register address */ ++ msgs[0].addr = client->addr; ++ msgs[0].flags = 0; ++ msgs[0].len = 2; ++ msgs[0].buf = (u8 *)®_addr_be; ++ ++ /* Read data from register */ ++ msgs[1].addr = client->addr; ++ msgs[1].flags = I2C_M_RD; ++ msgs[1].len = len; ++ msgs[1].buf = &data_be_p[4 - len]; ++ ++ ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); ++ if (ret != ARRAY_SIZE(msgs)) ++ return -EIO; ++ ++ *val = be32_to_cpu(data_be); ++ ++ return 0; ++} ++ ++static int ov9281_get_reso_dist(const struct ov9281_mode *mode, ++ struct v4l2_mbus_framefmt *framefmt) ++{ ++ return abs(mode->width - framefmt->width) + ++ abs(mode->height - framefmt->height); ++} ++ ++static const struct ov9281_mode * ++ov9281_find_best_fit(struct v4l2_subdev_format *fmt) ++{ ++ struct v4l2_mbus_framefmt *framefmt = &fmt->format; ++ int dist; ++ int cur_best_fit = 0; ++ int cur_best_fit_dist = -1; ++ unsigned int i; ++ ++ for (i = 0; i < ARRAY_SIZE(supported_modes); i++) { ++ dist = ov9281_get_reso_dist(&supported_modes[i], framefmt); ++ if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) { ++ cur_best_fit_dist = dist; ++ cur_best_fit = i; ++ } ++ } ++ ++ return &supported_modes[cur_best_fit]; ++} ++ ++static int ov9281_set_fmt(struct v4l2_subdev *sd, ++ struct v4l2_subdev_pad_config *cfg, ++ struct v4l2_subdev_format *fmt) ++{ ++ struct ov9281 *ov9281 = to_ov9281(sd); ++ const struct ov9281_mode *mode; ++ s64 h_blank, vblank_def; ++ ++ mutex_lock(&ov9281->mutex); ++ ++ mode = ov9281_find_best_fit(fmt); ++ fmt->format.code = MEDIA_BUS_FMT_Y10_1X10; ++ fmt->format.width = mode->width; ++ fmt->format.height = mode->height; ++ fmt->format.field = V4L2_FIELD_NONE; ++ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { ++#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API ++ *v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format; ++#else ++ mutex_unlock(&ov9281->mutex); ++ return -ENOTTY; ++#endif ++ } else { ++ ov9281->cur_mode = mode; ++ h_blank = mode->hts_def - mode->width; ++ __v4l2_ctrl_modify_range(ov9281->hblank, h_blank, ++ h_blank, 1, h_blank); ++ vblank_def = mode->vts_def - mode->height; ++ __v4l2_ctrl_modify_range(ov9281->vblank, vblank_def, ++ OV9281_VTS_MAX - mode->height, ++ 1, vblank_def); ++ } ++ ++ mutex_unlock(&ov9281->mutex); ++ ++ return 0; ++} ++ ++static int ov9281_get_fmt(struct v4l2_subdev *sd, ++ struct v4l2_subdev_pad_config *cfg, ++ struct v4l2_subdev_format *fmt) ++{ ++ struct ov9281 *ov9281 = to_ov9281(sd); ++ const struct ov9281_mode *mode = ov9281->cur_mode; ++ ++ mutex_lock(&ov9281->mutex); ++ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { ++#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API ++ fmt->format = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad); ++#else ++ mutex_unlock(&ov9281->mutex); ++ return -ENOTTY; ++#endif ++ } else { ++ fmt->format.width = mode->width; ++ fmt->format.height = mode->height; ++ fmt->format.code = MEDIA_BUS_FMT_Y10_1X10; ++ fmt->format.field = V4L2_FIELD_NONE; ++ } ++ mutex_unlock(&ov9281->mutex); ++ ++ return 0; ++} ++ ++static int ov9281_enum_mbus_code(struct v4l2_subdev *sd, ++ struct v4l2_subdev_pad_config *cfg, ++ struct v4l2_subdev_mbus_code_enum *code) ++{ ++ if (code->index != 0) ++ return -EINVAL; ++ code->code = MEDIA_BUS_FMT_Y10_1X10; ++ ++ return 0; ++} ++ ++static int ov9281_enum_frame_sizes(struct v4l2_subdev *sd, ++ struct v4l2_subdev_pad_config *cfg, ++ struct v4l2_subdev_frame_size_enum *fse) ++{ ++ if (fse->index >= ARRAY_SIZE(supported_modes)) ++ return -EINVAL; ++ ++ if (fse->code != MEDIA_BUS_FMT_Y10_1X10) ++ return -EINVAL; ++ ++ fse->min_width = supported_modes[fse->index].width; ++ fse->max_width = supported_modes[fse->index].width; ++ fse->max_height = supported_modes[fse->index].height; ++ fse->min_height = supported_modes[fse->index].height; ++ ++ return 0; ++} ++ ++static int ov9281_enable_test_pattern(struct ov9281 *ov9281, u32 pattern) ++{ ++ u32 val; ++ ++ if (pattern) ++ val = (pattern - 1) | OV9281_TEST_PATTERN_ENABLE; ++ else ++ val = OV9281_TEST_PATTERN_DISABLE; ++ ++ return ov9281_write_reg(ov9281->client, OV9281_REG_TEST_PATTERN, ++ OV9281_REG_VALUE_08BIT, val); ++} ++ ++static int OV9281_g_frame_interval(struct v4l2_subdev *sd, ++ struct v4l2_subdev_frame_interval *fi) ++{ ++ struct ov9281 *ov9281 = to_ov9281(sd); ++ const struct ov9281_mode *mode = ov9281->cur_mode; ++ ++ mutex_lock(&ov9281->mutex); ++ fi->interval.numerator = 10000; ++ fi->interval.denominator = mode->max_fps * 10000; ++ mutex_unlock(&ov9281->mutex); ++ ++ return 0; ++} ++ ++static void ov9281_get_module_inf(struct ov9281 *ov9281, ++ struct rkmodule_inf *inf) ++{ ++ memset(inf, 0, sizeof(*inf)); ++ strlcpy(inf->base.sensor, OV9281_NAME, sizeof(inf->base.sensor)); ++ strlcpy(inf->base.module, ov9281->module_name, ++ sizeof(inf->base.module)); ++ strlcpy(inf->base.lens, ov9281->len_name, sizeof(inf->base.lens)); ++} ++ ++static long ov9281_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) ++{ ++ struct ov9281 *ov9281 = to_ov9281(sd); ++ long ret = 0; ++ ++ switch (cmd) { ++ case RKMODULE_GET_MODULE_INFO: ++ ov9281_get_module_inf(ov9281, (struct rkmodule_inf *)arg); ++ break; ++ default: ++ ret = -ENOIOCTLCMD; ++ break; ++ } ++ ++ return ret; ++} ++ ++#ifdef CONFIG_COMPAT ++static long ov9281_compat_ioctl32(struct v4l2_subdev *sd, ++ unsigned int cmd, unsigned long arg) ++{ ++ void __user *up = compat_ptr(arg); ++ struct rkmodule_inf *inf; ++ struct rkmodule_awb_cfg *cfg; ++ long ret; ++ ++ switch (cmd) { ++ case RKMODULE_GET_MODULE_INFO: ++ inf = kzalloc(sizeof(*inf), GFP_KERNEL); ++ if (!inf) { ++ ret = -ENOMEM; ++ return ret; ++ } ++ ++ ret = ov9281_ioctl(sd, cmd, inf); ++ if (!ret) ++ ret = copy_to_user(up, inf, sizeof(*inf)); ++ kfree(inf); ++ break; ++ case RKMODULE_AWB_CFG: ++ cfg = kzalloc(sizeof(*cfg), GFP_KERNEL); ++ if (!cfg) { ++ ret = -ENOMEM; ++ return ret; ++ } ++ ++ ret = copy_from_user(cfg, up, sizeof(*cfg)); ++ if (!ret) ++ ret = ov9281_ioctl(sd, cmd, cfg); ++ kfree(cfg); ++ break; ++ default: ++ ret = -ENOIOCTLCMD; ++ break; ++ } ++ ++ return ret; ++} ++#endif ++ ++static int __ov9281_start_stream(struct ov9281 *ov9281) ++{ ++ int ret; ++ ++ ret = ov9281_write_array(ov9281->client, ov9281->cur_mode->reg_list); ++ if (ret) ++ return ret; ++ ++ /* In case these controls are set before streaming */ ++ mutex_unlock(&ov9281->mutex); ++ ret = v4l2_ctrl_handler_setup(&ov9281->ctrl_handler); ++ mutex_lock(&ov9281->mutex); ++ if (ret) ++ return ret; ++ ++ return ov9281_write_reg(ov9281->client, OV9281_REG_CTRL_MODE, ++ OV9281_REG_VALUE_08BIT, OV9281_MODE_STREAMING); ++} ++ ++static int __ov9281_stop_stream(struct ov9281 *ov9281) ++{ ++ return ov9281_write_reg(ov9281->client, OV9281_REG_CTRL_MODE, ++ OV9281_REG_VALUE_08BIT, OV9281_MODE_SW_STANDBY); ++} ++ ++static int ov9281_s_stream(struct v4l2_subdev *sd, int on) ++{ ++ struct ov9281 *ov9281 = to_ov9281(sd); ++ struct i2c_client *client = ov9281->client; ++ int ret = 0; ++ ++ mutex_lock(&ov9281->mutex); ++ on = !!on; ++ if (on == ov9281->streaming) ++ goto unlock_and_return; ++ ++ if (on) { ++ ret = pm_runtime_get_sync(&client->dev); ++ if (ret < 0) { ++ pm_runtime_put_noidle(&client->dev); ++ goto unlock_and_return; ++ } ++ ++ ret = __ov9281_start_stream(ov9281); ++ if (ret) { ++ v4l2_err(sd, "start stream failed while write regs\n"); ++ pm_runtime_put(&client->dev); ++ goto unlock_and_return; ++ } ++ } else { ++ __ov9281_stop_stream(ov9281); ++ pm_runtime_put(&client->dev); ++ } ++ ++ ov9281->streaming = on; ++ ++unlock_and_return: ++ mutex_unlock(&ov9281->mutex); ++ ++ return ret; ++} ++ ++static int ov9281_s_power(struct v4l2_subdev *sd, int on) ++{ ++ struct ov9281 *ov9281 = to_ov9281(sd); ++ struct i2c_client *client = ov9281->client; ++ int ret = 0; ++ ++ mutex_lock(&ov9281->mutex); ++ ++ /* If the power state is not modified - no work to do. */ ++ if (ov9281->power_on == !!on) ++ goto unlock_and_return; ++ ++ if (on) { ++ ret = pm_runtime_get_sync(&client->dev); ++ if (ret < 0) { ++ pm_runtime_put_noidle(&client->dev); ++ goto unlock_and_return; ++ } ++ ret = ov9281_write_array(ov9281->client, ov9281_global_regs); ++ if (ret) { ++ v4l2_err(sd, "could not set init registers\n"); ++ pm_runtime_put_noidle(&client->dev); ++ goto unlock_and_return; ++ } ++ ov9281->power_on = true; ++ } else { ++ pm_runtime_put(&client->dev); ++ ov9281->power_on = false; ++ } ++ ++unlock_and_return: ++ mutex_unlock(&ov9281->mutex); ++ ++ return ret; ++} ++ ++/* Calculate the delay in us by clock rate and clock cycles */ ++static inline u32 ov9281_cal_delay(u32 cycles) ++{ ++ return DIV_ROUND_UP(cycles, OV9281_XVCLK_FREQ / 1000 / 1000); ++} ++ ++static int __ov9281_power_on(struct ov9281 *ov9281) ++{ ++ int ret; ++ u32 delay_us; ++ struct device *dev = &ov9281->client->dev; ++ ++ if (!IS_ERR_OR_NULL(ov9281->pins_default)) { ++ ret = pinctrl_select_state(ov9281->pinctrl, ++ ov9281->pins_default); ++ if (ret < 0) ++ dev_err(dev, "could not set pins\n"); ++ } ++ ++ ret = clk_prepare_enable(ov9281->xvclk); ++ if (ret < 0) { ++ dev_err(dev, "Failed to enable xvclk\n"); ++ return ret; ++ } ++ ++ if (!IS_ERR(ov9281->reset_gpio)) ++ gpiod_set_value_cansleep(ov9281->reset_gpio, 0); ++ ++ ret = regulator_bulk_enable(OV9281_NUM_SUPPLIES, ov9281->supplies); ++ if (ret < 0) { ++ dev_err(dev, "Failed to enable regulators\n"); ++ goto disable_clk; ++ } ++ ++ if (!IS_ERR(ov9281->reset_gpio)) ++ gpiod_set_value_cansleep(ov9281->reset_gpio, 1); ++ ++ usleep_range(500, 1000); ++ if (!IS_ERR(ov9281->pwdn_gpio)) ++ gpiod_set_value_cansleep(ov9281->pwdn_gpio, 1); ++ ++ /* 8192 cycles prior to first SCCB transaction */ ++ delay_us = ov9281_cal_delay(8192); ++ usleep_range(delay_us, delay_us * 2); ++ ++ return 0; ++ ++disable_clk: ++ clk_disable_unprepare(ov9281->xvclk); ++ ++ return ret; ++} ++ ++static void __ov9281_power_off(struct ov9281 *ov9281) ++{ ++ int ret; ++ struct device *dev = &ov9281->client->dev; ++ ++ if (!IS_ERR(ov9281->pwdn_gpio)) ++ gpiod_set_value_cansleep(ov9281->pwdn_gpio, 0); ++ clk_disable_unprepare(ov9281->xvclk); ++ if (!IS_ERR(ov9281->reset_gpio)) ++ gpiod_set_value_cansleep(ov9281->reset_gpio, 0); ++ if (!IS_ERR_OR_NULL(ov9281->pins_sleep)) { ++ ret = pinctrl_select_state(ov9281->pinctrl, ++ ov9281->pins_sleep); ++ if (ret < 0) ++ dev_dbg(dev, "could not set pins\n"); ++ } ++ regulator_bulk_disable(OV9281_NUM_SUPPLIES, ov9281->supplies); ++} ++ ++static int ov9281_runtime_resume(struct device *dev) ++{ ++ struct i2c_client *client = to_i2c_client(dev); ++ struct v4l2_subdev *sd = i2c_get_clientdata(client); ++ struct ov9281 *ov9281 = to_ov9281(sd); ++ ++ return __ov9281_power_on(ov9281); ++} ++ ++static int ov9281_runtime_suspend(struct device *dev) ++{ ++ struct i2c_client *client = to_i2c_client(dev); ++ struct v4l2_subdev *sd = i2c_get_clientdata(client); ++ struct ov9281 *ov9281 = to_ov9281(sd); ++ ++ __ov9281_power_off(ov9281); ++ ++ return 0; ++} ++ ++#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API ++static int ov9281_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) ++{ ++ struct ov9281 *ov9281 = to_ov9281(sd); ++ struct v4l2_mbus_framefmt *try_fmt = ++ v4l2_subdev_get_try_format(sd, fh->pad, 0); ++ const struct ov9281_mode *def_mode = &supported_modes[0]; ++ ++ mutex_lock(&ov9281->mutex); ++ /* Initialize try_fmt */ ++ try_fmt->width = def_mode->width; ++ try_fmt->height = def_mode->height; ++ try_fmt->code = MEDIA_BUS_FMT_Y10_1X10; ++ try_fmt->field = V4L2_FIELD_NONE; ++ ++ mutex_unlock(&ov9281->mutex); ++ /* No crop or compose */ ++ ++ return 0; ++} ++#endif ++ ++static const struct dev_pm_ops ov9281_pm_ops = { ++ SET_RUNTIME_PM_OPS(ov9281_runtime_suspend, ++ ov9281_runtime_resume, NULL) ++}; ++ ++#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API ++static const struct v4l2_subdev_internal_ops ov9281_internal_ops = { ++ .open = ov9281_open, ++}; ++#endif ++ ++static const struct v4l2_subdev_core_ops ov9281_core_ops = { ++ .s_power = ov9281_s_power, ++ .ioctl = ov9281_ioctl, ++#ifdef CONFIG_COMPAT ++ .compat_ioctl32 = ov9281_compat_ioctl32, ++#endif ++}; ++ ++static const struct v4l2_subdev_video_ops ov9281_video_ops = { ++ .s_stream = ov9281_s_stream, ++ .g_frame_interval = OV9281_g_frame_interval, ++}; ++ ++static const struct v4l2_subdev_pad_ops ov9281_pad_ops = { ++ .enum_mbus_code = ov9281_enum_mbus_code, ++ .enum_frame_size = ov9281_enum_frame_sizes, ++ .get_fmt = ov9281_get_fmt, ++ .set_fmt = ov9281_set_fmt, ++}; ++ ++static const struct v4l2_subdev_ops ov9281_subdev_ops = { ++ .core = &ov9281_core_ops, ++ .video = &ov9281_video_ops, ++ .pad = &ov9281_pad_ops, ++}; ++ ++static int ov9281_set_ctrl(struct v4l2_ctrl *ctrl) ++{ ++ struct ov9281 *ov9281 = container_of(ctrl->handler, ++ struct ov9281, ctrl_handler); ++ struct i2c_client *client = ov9281->client; ++ s64 max; ++ int ret = 0; ++ ++ /* Propagate change of current control to all related controls */ ++ switch (ctrl->id) { ++ case V4L2_CID_VBLANK: ++ /* Update max exposure while meeting expected vblanking */ ++ max = ov9281->cur_mode->height + ctrl->val - 4; ++ __v4l2_ctrl_modify_range(ov9281->exposure, ++ ov9281->exposure->minimum, max, ++ ov9281->exposure->step, ++ ov9281->exposure->default_value); ++ break; ++ } ++ ++ if (pm_runtime_get(&client->dev) <= 0) ++ return 0; ++ ++ switch (ctrl->id) { ++ case V4L2_CID_EXPOSURE: ++ /* 4 least significant bits of expsoure are fractional part */ ++ ret = ov9281_write_reg(ov9281->client, OV9281_REG_EXPOSURE, ++ OV9281_REG_VALUE_24BIT, ctrl->val << 4); ++ break; ++ case V4L2_CID_ANALOGUE_GAIN: ++ ret = ov9281_write_reg(ov9281->client, OV9281_REG_GAIN_H, ++ OV9281_REG_VALUE_08BIT, ++ (ctrl->val >> OV9281_GAIN_H_SHIFT) & OV9281_GAIN_H_MASK); ++ ret |= ov9281_write_reg(ov9281->client, OV9281_REG_GAIN_L, ++ OV9281_REG_VALUE_08BIT, ++ ctrl->val & OV9281_GAIN_L_MASK); ++ break; ++ case V4L2_CID_VBLANK: ++ ret = ov9281_write_reg(ov9281->client, OV9281_REG_VTS, ++ OV9281_REG_VALUE_16BIT, ++ ctrl->val + ov9281->cur_mode->height); ++ break; ++ case V4L2_CID_TEST_PATTERN: ++ ret = ov9281_enable_test_pattern(ov9281, ctrl->val); ++ break; ++ default: ++ dev_warn(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n", ++ __func__, ctrl->id, ctrl->val); ++ break; ++ } ++ ++ pm_runtime_put(&client->dev); ++ ++ return ret; ++} ++ ++static const struct v4l2_ctrl_ops ov9281_ctrl_ops = { ++ .s_ctrl = ov9281_set_ctrl, ++}; ++ ++static int ov9281_initialize_controls(struct ov9281 *ov9281) ++{ ++ const struct ov9281_mode *mode; ++ struct v4l2_ctrl_handler *handler; ++ struct v4l2_ctrl *ctrl; ++ s64 exposure_max, vblank_def; ++ u32 h_blank; ++ int ret; ++ ++ handler = &ov9281->ctrl_handler; ++ mode = ov9281->cur_mode; ++ ret = v4l2_ctrl_handler_init(handler, 8); ++ if (ret) ++ return ret; ++ handler->lock = &ov9281->mutex; ++ ++ ctrl = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ, ++ 0, 0, link_freq_menu_items); ++ if (ctrl) ++ ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; ++ ++ v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE, ++ 0, OV9281_PIXEL_RATE, 1, OV9281_PIXEL_RATE); ++ ++ h_blank = mode->hts_def - mode->width; ++ ov9281->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK, ++ h_blank, h_blank, 1, h_blank); ++ if (ov9281->hblank) ++ ov9281->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; ++ ++ vblank_def = mode->vts_def - mode->height; ++ ov9281->vblank = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops, ++ V4L2_CID_VBLANK, vblank_def, ++ OV9281_VTS_MAX - mode->height, ++ 1, vblank_def); ++ ++ exposure_max = mode->vts_def - 4; ++ ov9281->exposure = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops, ++ V4L2_CID_EXPOSURE, OV9281_EXPOSURE_MIN, ++ exposure_max, OV9281_EXPOSURE_STEP, ++ mode->exp_def); ++ ++ ov9281->anal_gain = v4l2_ctrl_new_std(handler, &ov9281_ctrl_ops, ++ V4L2_CID_ANALOGUE_GAIN, OV9281_GAIN_MIN, ++ OV9281_GAIN_MAX, OV9281_GAIN_STEP, ++ OV9281_GAIN_DEFAULT); ++ ++ ov9281->test_pattern = v4l2_ctrl_new_std_menu_items(handler, ++ &ov9281_ctrl_ops, V4L2_CID_TEST_PATTERN, ++ ARRAY_SIZE(ov9281_test_pattern_menu) - 1, ++ 0, 0, ov9281_test_pattern_menu); ++ ++ if (handler->error) { ++ ret = handler->error; ++ dev_err(&ov9281->client->dev, ++ "Failed to init controls(%d)\n", ret); ++ goto err_free_handler; ++ } ++ ++ ov9281->subdev.ctrl_handler = handler; ++ ++ return 0; ++ ++err_free_handler: ++ v4l2_ctrl_handler_free(handler); ++ ++ return ret; ++} ++ ++static int ov9281_check_sensor_id(struct ov9281 *ov9281, ++ struct i2c_client *client) ++{ ++ struct device *dev = &ov9281->client->dev; ++ u32 id = 0; ++ int ret; ++ ++ ret = ov9281_read_reg(client, OV9281_REG_CHIP_ID, ++ OV9281_REG_VALUE_16BIT, &id); ++ if (id != CHIP_ID) { ++ dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret); ++ return -ENODEV; ++ } ++ ++ dev_info(dev, "Detected OV%06x sensor\n", CHIP_ID); ++ ++ return 0; ++} ++ ++static int ov9281_configure_regulators(struct ov9281 *ov9281) ++{ ++ unsigned int i; ++ ++ for (i = 0; i < OV9281_NUM_SUPPLIES; i++) ++ ov9281->supplies[i].supply = ov9281_supply_names[i]; ++ ++ return devm_regulator_bulk_get(&ov9281->client->dev, ++ OV9281_NUM_SUPPLIES, ++ ov9281->supplies); ++} ++ ++static int ov9281_probe(struct i2c_client *client, ++ const struct i2c_device_id *id) ++{ ++ struct device *dev = &client->dev; ++ struct device_node *node = dev->of_node; ++ struct ov9281 *ov9281; ++ struct v4l2_subdev *sd; ++ char facing[2]; ++ int ret; ++ ++ dev_info(dev, "driver version: %02x.%02x.%02x", ++ DRIVER_VERSION >> 16, ++ (DRIVER_VERSION & 0xff00) >> 8, ++ DRIVER_VERSION & 0x00ff); ++ ++ ov9281 = devm_kzalloc(dev, sizeof(*ov9281), GFP_KERNEL); ++ if (!ov9281) ++ return -ENOMEM; ++ ++ ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX, ++ &ov9281->module_index); ++ ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING, ++ &ov9281->module_facing); ++ ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME, ++ &ov9281->module_name); ++ ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME, ++ &ov9281->len_name); ++ if (ret) { ++ dev_err(dev, "could not get module information!\n"); ++ return -EINVAL; ++ } ++ ++ ov9281->client = client; ++ ov9281->cur_mode = &supported_modes[0]; ++ ++ ov9281->xvclk = devm_clk_get(dev, "xvclk"); ++ if (IS_ERR(ov9281->xvclk)) { ++ dev_err(dev, "Failed to get xvclk\n"); ++ return -EINVAL; ++ } ++ ret = clk_set_rate(ov9281->xvclk, OV9281_XVCLK_FREQ); ++ if (ret < 0) { ++ dev_err(dev, "Failed to set xvclk rate (24MHz)\n"); ++ return ret; ++ } ++ if (clk_get_rate(ov9281->xvclk) != OV9281_XVCLK_FREQ) ++ dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n"); ++ ++ ov9281->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); ++ if (IS_ERR(ov9281->reset_gpio)) ++ dev_warn(dev, "Failed to get reset-gpios\n"); ++ ++ ov9281->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW); ++ if (IS_ERR(ov9281->pwdn_gpio)) ++ dev_warn(dev, "Failed to get pwdn-gpios\n"); ++ ++ ov9281->pinctrl = devm_pinctrl_get(dev); ++ if (!IS_ERR(ov9281->pinctrl)) { ++ ov9281->pins_default = ++ pinctrl_lookup_state(ov9281->pinctrl, ++ OF_CAMERA_PINCTRL_STATE_DEFAULT); ++ if (IS_ERR(ov9281->pins_default)) ++ dev_err(dev, "could not get default pinstate\n"); ++ ++ ov9281->pins_sleep = ++ pinctrl_lookup_state(ov9281->pinctrl, ++ OF_CAMERA_PINCTRL_STATE_SLEEP); ++ if (IS_ERR(ov9281->pins_sleep)) ++ dev_err(dev, "could not get sleep pinstate\n"); ++ } else { ++ dev_err(dev, "no pinctrl\n"); ++ } ++ ++ ret = ov9281_configure_regulators(ov9281); ++ if (ret) { ++ dev_err(dev, "Failed to get power regulators\n"); ++ return ret; ++ } ++ ++ mutex_init(&ov9281->mutex); ++ ++ sd = &ov9281->subdev; ++ v4l2_i2c_subdev_init(sd, client, &ov9281_subdev_ops); ++ ret = ov9281_initialize_controls(ov9281); ++ if (ret) ++ goto err_destroy_mutex; ++ ++ ret = __ov9281_power_on(ov9281); ++ if (ret) ++ goto err_free_handler; ++ ++ ret = ov9281_check_sensor_id(ov9281, client); ++ if (ret) ++ goto err_power_off; ++ ++#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API ++ sd->internal_ops = &ov9281_internal_ops; ++ sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; ++#endif ++#if defined(CONFIG_MEDIA_CONTROLLER) ++ ov9281->pad.flags = MEDIA_PAD_FL_SOURCE; ++ sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; ++ ret = media_entity_init(&sd->entity, 1, &ov9281->pad, 0); ++ if (ret < 0) ++ goto err_power_off; ++#endif ++ ++ memset(facing, 0, sizeof(facing)); ++ if (strcmp(ov9281->module_facing, "back") == 0) ++ facing[0] = 'b'; ++ else ++ facing[0] = 'f'; ++ ++ snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s", ++ ov9281->module_index, facing, ++ OV9281_NAME, dev_name(sd->dev)); ++ ret = v4l2_async_register_subdev_sensor(sd); ++ if (ret) { ++ dev_err(dev, "v4l2 async register subdev failed\n"); ++ goto err_clean_entity; ++ } ++ ++ pm_runtime_set_active(dev); ++ pm_runtime_enable(dev); ++ pm_runtime_idle(dev); ++ ++ return 0; ++ ++err_clean_entity: ++#if defined(CONFIG_MEDIA_CONTROLLER) ++ media_entity_cleanup(&sd->entity); ++#endif ++err_power_off: ++ __ov9281_power_off(ov9281); ++err_free_handler: ++ v4l2_ctrl_handler_free(&ov9281->ctrl_handler); ++err_destroy_mutex: ++ mutex_destroy(&ov9281->mutex); ++ ++ return ret; ++} ++ ++static int ov9281_remove(struct i2c_client *client) ++{ ++ struct v4l2_subdev *sd = i2c_get_clientdata(client); ++ struct ov9281 *ov9281 = to_ov9281(sd); ++ ++ v4l2_async_unregister_subdev(sd); ++#if defined(CONFIG_MEDIA_CONTROLLER) ++ media_entity_cleanup(&sd->entity); ++#endif ++ v4l2_ctrl_handler_free(&ov9281->ctrl_handler); ++ mutex_destroy(&ov9281->mutex); ++ ++ pm_runtime_disable(&client->dev); ++ if (!pm_runtime_status_suspended(&client->dev)) ++ __ov9281_power_off(ov9281); ++ pm_runtime_set_suspended(&client->dev); ++ ++ return 0; ++} ++ ++#if IS_ENABLED(CONFIG_OF) ++static const struct of_device_id ov9281_of_match[] = { ++ { .compatible = "ovti,ov9281" }, ++ {}, ++}; ++MODULE_DEVICE_TABLE(of, ov9281_of_match); ++#endif ++ ++static const struct i2c_device_id ov9281_match_id[] = { ++ { "ovti,ov9281", 0 }, ++ { }, ++}; ++ ++static struct i2c_driver ov9281_i2c_driver = { ++ .driver = { ++ .name = OV9281_NAME, ++ .pm = &ov9281_pm_ops, ++ .of_match_table = of_match_ptr(ov9281_of_match), ++ }, ++ .probe = &ov9281_probe, ++ .remove = &ov9281_remove, ++ .id_table = ov9281_match_id, ++}; ++ ++static int __init sensor_mod_init(void) ++{ ++ return i2c_add_driver(&ov9281_i2c_driver); ++} ++ ++static void __exit sensor_mod_exit(void) ++{ ++ i2c_del_driver(&ov9281_i2c_driver); ++} ++ ++device_initcall_sync(sensor_mod_init); ++module_exit(sensor_mod_exit); ++ ++MODULE_DESCRIPTION("OmniVision ov9281 sensor driver"); ++MODULE_LICENSE("GPL v2"); -- cgit v1.2.3