// SPDX-License-Identifier: GPL-2.0 /* * ar0230 driver * * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd. * V0.0X01.0X01 add enum_frame_interval function. * V0.0X01.0X02 add quick stream on/off */ #include <linux/clk.h> #include <linux/device.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/sysfs.h> #include <linux/version.h> #include <linux/rk-camera-module.h> #include <media/media-entity.h> #include <media/v4l2-async.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-subdev.h> #define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x02) #ifndef V4L2_CID_DIGITAL_GAIN #define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN #endif /* 74.25Mhz */ #define AR0230_PIXEL_RATE (74250000) #define AR0230_XVCLK_FREQ 24000000 #define CHIP_ID 0x3020 #define AR0230_REG_CHIP_ID 0x31fc #define AR0230_REG_CTRL_MODE 0x301A #define AR0230_MODE_SW_STANDBY 0x10D8 #define AR0230_MODE_STREAMING 0x10DC #define AR0230_REG_EXPOSURE 0x3012 #define AR0230_EXPOSURE_MIN 0 #define AR0230_EXPOSURE_STEP 1 #define AR0230_VTS_MAX 0x044A #define AR0230_REG_ANALOG_GAIN 0x3060 #define ANALOG_GAIN_MIN 0x0 #define ANALOG_GAIN_MAX 0xFB7 #define ANALOG_GAIN_STEP 1 #define ANALOG_GAIN_DEFAULT 0xC0 #define AR0230_REG_VTS 0x300a #define AR0230_REG_ORIENTATION 0x3040 #define AR0230_ORIENTATION_H bit(14) #define AR0230_ORIENTATION_V bit(15) #define REG_NULL 0xFFFF #define REG_DELAY 0xFFFE #define AR0230_REG_VALUE_08BIT 1 #define AR0230_REG_VALUE_16BIT 2 #define AR0230_REG_VALUE_24BIT 3 #define USE_HDR_MODE /* h_offs 35 v_offs 14 */ #define PIX_FORMAT MEDIA_BUS_FMT_SGRBG12_1X12 #define AR0230_NAME "ar0230" struct cam_regulator { <------>char name[32]; <------>int val; }; static const struct cam_regulator ar0230_regulator[] = { <------>{"avdd", 2800000}, /* Analog power */ <------>{"dovdd", 1800000}, /* Digital I/O power */ <------>{"dvdd", 1800000}, /* Digital core power */ }; #define AR0230_NUM_SUPPLIES ARRAY_SIZE(ar0230_regulator) struct regval { <------>u16 addr; <------>u16 val; }; struct ar0230_mode { <------>u32 width; <------>u32 height; <------>struct v4l2_fract max_fps; <------>u32 hts_def; <------>u32 vts_def; <------>u32 exp_def; <------>const struct regval *reg_list; }; struct ar0230 { <------>struct i2c_client *client; <------>struct clk *xvclk; <------>struct gpio_desc *reset_gpio; <------>struct gpio_desc *pwdn_gpio; <------>struct regulator_bulk_data supplies[AR0230_NUM_SUPPLIES]; <------>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 ar0230_mode *cur_mode; <------>u32 module_index; <------>const char *module_facing; <------>const char *module_name; <------>const char *len_name; }; #define to_ar0230(sd) container_of(sd, struct ar0230, subdev) /* * Xclk 24Mhz * Pclk 74.25Mhz * linelength 0x469 * framelength 0x44a * grabwindow_width 1920 * grabwindow_height 1080 * max_framerate 30fps * dvp bt601 12bit */ static const struct regval ar0230_regs[] = { #ifdef USE_HDR_MODE <------>{0x301A, 0x0001}, <------>{REG_DELAY, 2000}, <------>{0x301A, 0x10D8}, <------>{REG_DELAY, 2000}, <------>{0x3088, 0x8000}, <------>{0x3086, 0x4558}, <------>{0x3086, 0x729B}, <------>{0x3086, 0x4A31}, <------>{0x3086, 0x4342}, <------>{0x3086, 0x8E03}, <------>{0x3086, 0x2A14}, <------>{0x3086, 0x4578}, <------>{0x3086, 0x7B3D}, <------>{0x3086, 0xFF3D}, <------>{0x3086, 0xFF3D}, <------>{0x3086, 0xEA2A}, <------>{0x3086, 0x043D}, <------>{0x3086, 0x102A}, <------>{0x3086, 0x052A}, <------>{0x3086, 0x1535}, <------>{0x3086, 0x2A05}, 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<------>{REG_NULL, 0x00}, }; static const struct ar0230_mode supported_modes[] = { <------>{ <------><------>.width = 1920, <------><------>.height = 1080, <------><------>.max_fps = { <------><------><------>.numerator = 10000, <------><------><------>.denominator = 300000, <------><------>}, <------><------>.exp_def = 0x0100, <------><------>.hts_def = 0x0469 * 2, <------><------>.vts_def = 0x044a, <------><------>.reg_list = ar0230_regs, <------>} }; static const char * const ar0230_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 ar0230_write_reg(struct i2c_client *client, u16 reg, <------><------><------> int 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++]; <------>//printk("czf reg = 0x%04x, value = 0x%04x\n", reg, val); <------>if (i2c_master_send(client, buf, len + 2) != len + 2) <------><------>return -EIO; <------>usleep_range(10, 20); <------>return 0; } static int ar0230_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++) { <------><------>if (unlikely(regs[i].addr == REG_DELAY)) <------><------><------>usleep_range(regs[i].val, regs[i].val * 2); <------><------>else <------><------><------>ret = ar0230_write_reg(client, regs[i].addr, <------><------><------><------><------> AR0230_REG_VALUE_16BIT, <------><------><------><------><------> regs[i].val); <------>} <------>return ret; } /* Read registers up to 4 at a time */ static int ar0230_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 ar0230_get_reso_dist(const struct ar0230_mode *mode, <------><------><------><------>struct v4l2_mbus_framefmt *framefmt) { <------>return abs(mode->width - framefmt->width) + <------> abs(mode->height - framefmt->height); } static const struct ar0230_mode * ar0230_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; <------>u32 i; <------>for (i = 0; i < ARRAY_SIZE(supported_modes); i++) { <------><------>dist = ar0230_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 ar0230_set_fmt(struct v4l2_subdev *sd, <------><------><------> struct v4l2_subdev_pad_config *cfg, <------><------><------> struct v4l2_subdev_format *fmt) { <------>struct ar0230 *ar0230 = to_ar0230(sd); <------>const struct ar0230_mode *mode; <------>s64 h_blank, vblank_def; <------>mutex_lock(&ar0230->mutex); <------>mode = ar0230_find_best_fit(fmt); <------>fmt->format.code = PIX_FORMAT; <------>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(&ar0230->mutex); <------><------>return -ENOTTY; #endif <------>} else { <------><------>ar0230->cur_mode = mode; <------><------>h_blank = mode->hts_def - mode->width; <------><------>__v4l2_ctrl_modify_range(ar0230->hblank, h_blank, <------><------><------><------><------> h_blank, 1, h_blank); <------><------>vblank_def = mode->vts_def - mode->height; <------><------>__v4l2_ctrl_modify_range(ar0230->vblank, vblank_def, <------><------><------><------><------> AR0230_VTS_MAX - mode->height, <------><------><------><------><------> 1, vblank_def); <------>} <------>mutex_unlock(&ar0230->mutex); <------>return 0; } static int ar0230_get_fmt(struct v4l2_subdev *sd, <------><------><------> struct v4l2_subdev_pad_config *cfg, <------><------><------> struct v4l2_subdev_format *fmt) { <------>struct ar0230 *ar0230 = to_ar0230(sd); <------>const struct ar0230_mode *mode = ar0230->cur_mode; <------>mutex_lock(&ar0230->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(&ar0230->mutex); <------><------>return -ENOTTY; #endif <------>} else { <------><------>fmt->format.width = mode->width; <------><------>fmt->format.height = mode->height; <------><------>fmt->format.code = PIX_FORMAT; <------><------>fmt->format.field = V4L2_FIELD_NONE; <------>} <------>mutex_unlock(&ar0230->mutex); <------>return 0; } static int ar0230_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 = PIX_FORMAT; <------>return 0; } static int ar0230_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 != PIX_FORMAT) <------><------>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 ar0230_enable_test_pattern(struct ar0230 *ar0230, u32 pattern) { <------>return 0; } static void ar0230_get_module_inf(struct ar0230 *ar0230, <------><------><------><------> struct rkmodule_inf *inf) { <------>memset(inf, 0, sizeof(*inf)); <------>strlcpy(inf->base.sensor, AR0230_NAME, sizeof(inf->base.sensor)); <------>strlcpy(inf->base.module, ar0230->module_name, <------><------>sizeof(inf->base.module)); <------>strlcpy(inf->base.lens, ar0230->len_name, sizeof(inf->base.lens)); } static long ar0230_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) { <------>struct ar0230 *ar0230 = to_ar0230(sd); <------>long ret = 0; <------>u32 stream = 0; <------>switch (cmd) { <------>case RKMODULE_GET_MODULE_INFO: <------><------>ar0230_get_module_inf(ar0230, (struct rkmodule_inf *)arg); <------><------>break; <------>case RKMODULE_SET_QUICK_STREAM: <------><------>stream = *((u32 *)arg); <------><------>if (stream) <------><------><------>ret = ar0230_write_reg(ar0230->client, AR0230_REG_CTRL_MODE, <------><------><------><------>AR0230_REG_VALUE_16BIT, AR0230_MODE_STREAMING); <------><------>else <------><------><------>ret = ar0230_write_reg(ar0230->client, AR0230_REG_CTRL_MODE, <------><------><------><------>AR0230_REG_VALUE_16BIT, AR0230_MODE_SW_STANDBY); <------><------>break; <------>default: <------><------>ret = -ENOIOCTLCMD; <------><------>break; <------>} <------>return ret; } #ifdef CONFIG_COMPAT static long ar0230_compat_ioctl32(struct v4l2_subdev *sd, <------><------><------><------> unsigned int cmd, unsigned long arg) { <------>void __user *up = compat_ptr(arg); <------>struct rkmodule_inf *inf; <------>long ret; <------>u32 stream = 0; <------>switch (cmd) { <------>case RKMODULE_GET_MODULE_INFO: <------><------>inf = kzalloc(sizeof(*inf), GFP_KERNEL); <------><------>if (!inf) { <------><------><------>ret = -ENOMEM; <------><------><------>return ret; <------><------>} <------><------>ret = ar0230_ioctl(sd, cmd, inf); <------><------>if (!ret) <------><------><------>ret = copy_to_user(up, inf, sizeof(*inf)); <------><------>kfree(inf); <------><------>break; <------>case RKMODULE_SET_QUICK_STREAM: <------><------>ret = copy_from_user(&stream, up, sizeof(u32)); <------><------>if (!ret) <------><------><------>ret = ar0230_ioctl(sd, cmd, &stream); <------><------>break; <------>default: <------><------>ret = -ENOIOCTLCMD; <------><------>break; <------>} <------>return ret; } #endif static int __ar0230_start_stream(struct ar0230 *ar0230) { <------>int ret; <------>ret = ar0230_write_array(ar0230->client, ar0230->cur_mode->reg_list); <------>if (ret) <------><------>return ret; <------>/* In case these controls are set before streaming */ <------>mutex_unlock(&ar0230->mutex); <------>ret = v4l2_ctrl_handler_setup(&ar0230->ctrl_handler); <------>mutex_lock(&ar0230->mutex); <------>if (ret) <------><------>return ret; <------>return ar0230_write_reg(ar0230->client, AR0230_REG_CTRL_MODE, <------><------><------><------>AR0230_REG_VALUE_16BIT, AR0230_MODE_STREAMING); } static int __ar0230_stop_stream(struct ar0230 *ar0230) { <------>return ar0230_write_reg(ar0230->client, AR0230_REG_CTRL_MODE, <------><------><------><------>AR0230_REG_VALUE_16BIT, AR0230_MODE_SW_STANDBY); } static int ar0230_s_stream(struct v4l2_subdev *sd, int on) { <------>struct ar0230 *ar0230 = to_ar0230(sd); <------>struct i2c_client *client = ar0230->client; <------>int ret = 0; <------>mutex_lock(&ar0230->mutex); <------>on = !!on; <------>if (on == ar0230->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 = __ar0230_start_stream(ar0230); <------><------>if (ret) { <------><------><------>v4l2_err(sd, "start stream failed while write regs\n"); <------><------><------>pm_runtime_put(&client->dev); <------><------><------>goto unlock_and_return; <------><------>} <------>} else { <------><------>__ar0230_stop_stream(ar0230); <------><------>pm_runtime_put(&client->dev); <------>} <------>ar0230->streaming = on; unlock_and_return: <------>mutex_unlock(&ar0230->mutex); <------>return ret; } static int ar0230_g_frame_interval(struct v4l2_subdev *sd, <------><------><------><------> struct v4l2_subdev_frame_interval *fi) { <------>struct ar0230 *ar0230 = to_ar0230(sd); <------>const struct ar0230_mode *mode = ar0230->cur_mode; <------>mutex_lock(&ar0230->mutex); <------>fi->interval = mode->max_fps; <------>mutex_unlock(&ar0230->mutex); <------>return 0; } static int ar0230_s_power(struct v4l2_subdev *sd, int on) { <------>struct ar0230 *ar0230 = to_ar0230(sd); <------>struct i2c_client *client = ar0230->client; <------>int ret = 0; <------>mutex_lock(&ar0230->mutex); <------>/* If the power state is not modified - no work to do. */ <------>if (ar0230->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; <------><------>} <------><------>ar0230->power_on = true; <------>} else { <------><------>pm_runtime_put(&client->dev); <------><------>ar0230->power_on = false; <------>} unlock_and_return: <------>mutex_unlock(&ar0230->mutex); <------>return ret; } /* Calculate the delay in us by clock rate and clock cycles */ static inline u32 ar0230_cal_delay(u32 cycles) { <------>return DIV_ROUND_UP(cycles, AR0230_XVCLK_FREQ / 1000 / 1000); } static int __ar0230_power_on(struct ar0230 *ar0230) { <------>int ret; <------>u32 i, delay_us; <------>struct device *dev = &ar0230->client->dev; <------>ret = clk_set_rate(ar0230->xvclk, AR0230_XVCLK_FREQ); <------>if (ret < 0) { <------><------>dev_err(dev, "Failed to set xvclk rate (%d)\n", <------><------><------>AR0230_XVCLK_FREQ); <------><------>return ret; <------>} <------>if (clk_get_rate(ar0230->xvclk) != AR0230_XVCLK_FREQ) <------><------>dev_warn(dev, "xvclk mismatched, modes are based on %d\n", <------><------><------>AR0230_XVCLK_FREQ); <------>ret = clk_prepare_enable(ar0230->xvclk); <------>if (ret < 0) { <------><------>dev_err(dev, "Failed to enable xvclk\n"); <------><------>return ret; <------>} <------>if (!IS_ERR(ar0230->reset_gpio)) <------><------>gpiod_set_value_cansleep(ar0230->reset_gpio, 0); <------>for (i = 0; i < AR0230_NUM_SUPPLIES; i++) <------><------>regulator_set_voltage(ar0230->supplies[i].consumer, <------><------><------>ar0230_regulator[i].val, <------><------><------>ar0230_regulator[i].val); <------>ret = regulator_bulk_enable(AR0230_NUM_SUPPLIES, ar0230->supplies); <------>if (ret < 0) { <------><------>dev_err(dev, "Failed to enable regulators\n"); <------><------>goto disable_clk; <------>} <------>if (!IS_ERR(ar0230->reset_gpio)) <------><------>gpiod_set_value_cansleep(ar0230->reset_gpio, 1); <------>if (!IS_ERR(ar0230->pwdn_gpio)) <------><------>gpiod_set_value_cansleep(ar0230->pwdn_gpio, 1); <------>/* 8192 cycles prior to first SCCB transaction */ <------>delay_us = ar0230_cal_delay(92000); <------>usleep_range(delay_us, delay_us * 2); <------>return 0; disable_clk: <------>clk_disable_unprepare(ar0230->xvclk); <------>return ret; } static void __ar0230_power_off(struct ar0230 *ar0230) { <------>if (!IS_ERR(ar0230->pwdn_gpio)) <------><------>gpiod_set_value_cansleep(ar0230->pwdn_gpio, 0); <------>clk_disable_unprepare(ar0230->xvclk); <------>if (!IS_ERR(ar0230->reset_gpio)) <------><------>gpiod_set_value_cansleep(ar0230->reset_gpio, 0); <------>regulator_bulk_disable(AR0230_NUM_SUPPLIES, ar0230->supplies); } static int ar0230_runtime_resume(struct device *dev) { <------>struct i2c_client *client = to_i2c_client(dev); <------>struct v4l2_subdev *sd = i2c_get_clientdata(client); <------>struct ar0230 *ar0230 = to_ar0230(sd); <------>return __ar0230_power_on(ar0230); } static int ar0230_runtime_suspend(struct device *dev) { <------>struct i2c_client *client = to_i2c_client(dev); <------>struct v4l2_subdev *sd = i2c_get_clientdata(client); <------>struct ar0230 *ar0230 = to_ar0230(sd); <------>__ar0230_power_off(ar0230); <------>return 0; } #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static int ar0230_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { <------>struct ar0230 *ar0230 = to_ar0230(sd); <------>struct v4l2_mbus_framefmt *try_fmt = <------><------><------><------>v4l2_subdev_get_try_format(sd, fh->pad, 0); <------>const struct ar0230_mode *def_mode = &supported_modes[0]; <------>mutex_lock(&ar0230->mutex); <------>/* Initialize try_fmt */ <------>try_fmt->width = def_mode->width; <------>try_fmt->height = def_mode->height; <------>try_fmt->code = PIX_FORMAT; <------>try_fmt->field = V4L2_FIELD_NONE; <------>mutex_unlock(&ar0230->mutex); <------>/* No crop or compose */ <------>return 0; } #endif static int ar0230_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad_id, <------><------><------><------>struct v4l2_mbus_config *config) { <------>config->type = V4L2_MBUS_PARALLEL; <------>config->flags = V4L2_MBUS_HSYNC_ACTIVE_HIGH | <------><------><------>V4L2_MBUS_VSYNC_ACTIVE_HIGH | <------><------><------>V4L2_MBUS_PCLK_SAMPLE_FALLING; <------>return 0; } static int ar0230_enum_frame_interval(struct v4l2_subdev *sd, <------><------><------><------> struct v4l2_subdev_pad_config *cfg, <------><------><------><------> struct v4l2_subdev_frame_interval_enum *fie) { <------>if (fie->index >= ARRAY_SIZE(supported_modes)) <------><------>return -EINVAL; <------>if (fie->code != PIX_FORMAT) <------><------>return -EINVAL; <------>fie->width = supported_modes[fie->index].width; <------>fie->height = supported_modes[fie->index].height; <------>fie->interval = supported_modes[fie->index].max_fps; <------>return 0; } static const struct dev_pm_ops ar0230_pm_ops = { <------>SET_RUNTIME_PM_OPS(ar0230_runtime_suspend, <------><------><------> ar0230_runtime_resume, NULL) }; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static const struct v4l2_subdev_internal_ops ar0230_internal_ops = { <------>.open = ar0230_open, }; #endif static const struct v4l2_subdev_core_ops ar0230_core_ops = { <------>.s_power = ar0230_s_power, <------>.ioctl = ar0230_ioctl, #ifdef CONFIG_COMPAT <------>.compat_ioctl32 = ar0230_compat_ioctl32, #endif }; static const struct v4l2_subdev_video_ops ar0230_video_ops = { <------>.s_stream = ar0230_s_stream, <------>.g_frame_interval = ar0230_g_frame_interval, }; static const struct v4l2_subdev_pad_ops ar0230_pad_ops = { <------>.enum_mbus_code = ar0230_enum_mbus_code, <------>.enum_frame_size = ar0230_enum_frame_sizes, <------>.enum_frame_interval = ar0230_enum_frame_interval, <------>.get_fmt = ar0230_get_fmt, <------>.set_fmt = ar0230_set_fmt, <------>.get_mbus_config = ar0230_g_mbus_config, }; static const struct v4l2_subdev_ops ar0230_subdev_ops = { <------>.core = &ar0230_core_ops, <------>.video = &ar0230_video_ops, <------>.pad = &ar0230_pad_ops, }; static int ar0230_set_gain(struct ar0230 *ar0230, int gain) { <------>int ret = 0; <------>u32 again = 0; <------>if (gain < 192) <------><------>gain = 192; <------>if (gain < 256) { <------><------>again = (u32)(32 - (32 * 128 / gain)); <------><------>ret = ar0230_write_reg(ar0230->client, 0x3100, <------><------><------><------> AR0230_REG_VALUE_16BIT, 0); <------><------>ret |= ar0230_write_reg(ar0230->client, AR0230_REG_ANALOG_GAIN, <------><------><------><------> AR0230_REG_VALUE_16BIT, again); <------>} else if (gain >= 256 && gain < 345) { <------><------>again = (u32)(32 - (64 * 128 / gain)); <------><------>again |= 0x0010; <------><------>ret = ar0230_write_reg(ar0230->client, 0x3100, <------><------><------><------> AR0230_REG_VALUE_16BIT, 0); <------><------>ret |= ar0230_write_reg(ar0230->client, AR0230_REG_ANALOG_GAIN, <------><------><------><------> AR0230_REG_VALUE_16BIT, again); <------>} else if (gain >= 345 && gain < 691) { <------><------>again = (u32)(32 - (32 * 345 / gain)); <------><------>ret = ar0230_write_reg(ar0230->client, 0x3100, <------><------><------><------> AR0230_REG_VALUE_16BIT, 4); <------><------>ret |= ar0230_write_reg(ar0230->client, AR0230_REG_ANALOG_GAIN, <------><------><------><------> AR0230_REG_VALUE_16BIT, again); <------>} else if (gain >= 691 && gain < 1382) { <------><------>again = (u32)(32 - (64 * 345 / gain)); <------><------>again |= 0x0010; <------><------>ret = ar0230_write_reg(ar0230->client, 0x3100, <------><------><------><------> AR0230_REG_VALUE_16BIT, 4); <------><------>ret |= ar0230_write_reg(ar0230->client, AR0230_REG_ANALOG_GAIN, <------><------><------><------> AR0230_REG_VALUE_16BIT, again); <------>} else if (gain >= 1382 && gain < 2764) { <------><------>again = (u32)(32 - (128 * 345 / gain)); <------><------>again |= 0x0020; <------><------>ret = ar0230_write_reg(ar0230->client, 0x3100, <------><------><------><------> AR0230_REG_VALUE_16BIT, 4); <------><------>ret |= ar0230_write_reg(ar0230->client, AR0230_REG_ANALOG_GAIN, <------><------><------><------> AR0230_REG_VALUE_16BIT, again); <------>} else if (gain >= 2764 && gain < 4023) { <------><------>again = (u32)(32 - (256 * 345 / gain)); <------><------>again |= 0x0030; <------><------>ret = ar0230_write_reg(ar0230->client, 0x3100, <------><------><------><------> AR0230_REG_VALUE_16BIT, 4); <------><------>ret |= ar0230_write_reg(ar0230->client, AR0230_REG_ANALOG_GAIN, <------><------><------><------> AR0230_REG_VALUE_16BIT, again); <------>} <------>return ret; } static int ar0230_set_ctrl(struct v4l2_ctrl *ctrl) { <------>struct ar0230 *ar0230 = container_of(ctrl->handler, <------><------><------><------><------> struct ar0230, ctrl_handler); <------>struct i2c_client *client = ar0230->client; <------>int ret = 0; <------>if (!pm_runtime_get_if_in_use(&client->dev)) <------><------>return 0; <------>switch (ctrl->id) { <------>case V4L2_CID_EXPOSURE: <------><------>ret = ar0230_write_reg(ar0230->client, AR0230_REG_EXPOSURE, <------><------><------><------> AR0230_REG_VALUE_16BIT, ctrl->val); <------><------>break; <------>case V4L2_CID_ANALOGUE_GAIN: <------><------>ret = ar0230_set_gain(ar0230, ctrl->val); <------><------>break; <------>case V4L2_CID_VBLANK: <------><------>ret = ar0230_write_reg(ar0230->client, AR0230_REG_VTS, <------><------><------><------> AR0230_REG_VALUE_16BIT, <------><------><------><------> ctrl->val + ar0230->cur_mode->height); <------><------>break; <------>case V4L2_CID_TEST_PATTERN: <------><------>ret = ar0230_enable_test_pattern(ar0230, 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 ar0230_ctrl_ops = { <------>.s_ctrl = ar0230_set_ctrl, }; static int ar0230_initialize_controls(struct ar0230 *ar0230) { <------>const struct ar0230_mode *mode; <------>struct v4l2_ctrl_handler *handler; <------>s64 exposure_max, vblank_def; <------>u32 h_blank; <------>int ret; <------>handler = &ar0230->ctrl_handler; <------>mode = ar0230->cur_mode; <------>ret = v4l2_ctrl_handler_init(handler, 8); <------>if (ret) <------><------>return ret; <------>handler->lock = &ar0230->mutex; <------>v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE, <------><------><------> 0, AR0230_PIXEL_RATE, 1, AR0230_PIXEL_RATE); <------>h_blank = mode->hts_def - mode->width; <------>ar0230->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK, <------><------><------><------>h_blank, h_blank, 1, h_blank); <------>if (ar0230->hblank) <------><------>ar0230->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; <------>vblank_def = mode->vts_def - mode->height; <------>ar0230->vblank = v4l2_ctrl_new_std(handler, &ar0230_ctrl_ops, <------><------><------><------>V4L2_CID_VBLANK, vblank_def, <------><------><------><------>AR0230_VTS_MAX - mode->height, <------><------><------><------>1, vblank_def); <------>exposure_max = mode->vts_def - 1; <------>ar0230->exposure = v4l2_ctrl_new_std(handler, &ar0230_ctrl_ops, <------><------><------><------>V4L2_CID_EXPOSURE, AR0230_EXPOSURE_MIN, <------><------><------><------>exposure_max, AR0230_EXPOSURE_STEP, <------><------><------><------>mode->exp_def); <------>ar0230->anal_gain = v4l2_ctrl_new_std(handler, &ar0230_ctrl_ops, <------><------><------><------>V4L2_CID_ANALOGUE_GAIN, ANALOG_GAIN_MIN, <------><------><------><------>ANALOG_GAIN_MAX, ANALOG_GAIN_STEP, <------><------><------><------>ANALOG_GAIN_DEFAULT); <------>ar0230->test_pattern = v4l2_ctrl_new_std_menu_items(handler, <------><------><------><------>&ar0230_ctrl_ops, V4L2_CID_TEST_PATTERN, <------><------><------><------>ARRAY_SIZE(ar0230_test_pattern_menu) - 1, <------><------><------><------>0, 0, ar0230_test_pattern_menu); <------>if (handler->error) { <------><------>ret = handler->error; <------><------>dev_err(&ar0230->client->dev, <------><------><------>"Failed to init controls(%d)\n", ret); <------><------>goto err_free_handler; <------>} <------>ar0230->subdev.ctrl_handler = handler; <------>return 0; err_free_handler: <------>v4l2_ctrl_handler_free(handler); <------>return ret; } static int ar0230_check_sensor_id(struct ar0230 *ar0230, <------><------><------><------> struct i2c_client *client) { <------>struct device *dev = &ar0230->client->dev; <------>u32 id = 0; <------>int ret; <------>ret = ar0230_read_reg(client, AR0230_REG_CHIP_ID, <------><------><------> AR0230_REG_VALUE_16BIT, &id); <------>if (id != CHIP_ID) { <------><------>dev_err(dev, "Unexpected sensor id(%x), ret(%d)\n", id, ret); <------><------>return -ENODEV; <------>} <------>dev_info(dev, "Detected AR0230 sensor\n"); <------>return 0; } static int ar0230_configure_regulators(struct ar0230 *ar0230) { <------>u32 i; <------>for (i = 0; i < AR0230_NUM_SUPPLIES; i++) <------><------>ar0230->supplies[i].supply = <------><------><------>ar0230_regulator[i].name; <------>return devm_regulator_bulk_get(&ar0230->client->dev, <------><------><------><------> AR0230_NUM_SUPPLIES, <------><------><------><------> ar0230->supplies); } static int ar0230_probe(struct i2c_client *client, <------><------><------>const struct i2c_device_id *id) { <------>struct device *dev = &client->dev; <------>struct device_node *node = dev->of_node; <------>struct ar0230 *ar0230; <------>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); <------>ar0230 = devm_kzalloc(dev, sizeof(*ar0230), GFP_KERNEL); <------>if (!ar0230) <------><------>return -ENOMEM; <------>ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX, <------><------><------><------> &ar0230->module_index); <------>ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING, <------><------><------><------> &ar0230->module_facing); <------>ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME, <------><------><------><------> &ar0230->module_name); <------>ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME, <------><------><------><------> &ar0230->len_name); <------>if (ret) { <------><------>dev_err(dev, "could not get module information!\n"); <------><------>return -EINVAL; <------>} <------>ar0230->client = client; <------>ar0230->cur_mode = &supported_modes[0]; <------>ar0230->xvclk = devm_clk_get(dev, "xvclk"); <------>if (IS_ERR(ar0230->xvclk)) { <------><------>dev_err(dev, "Failed to get xvclk\n"); <------><------>return -EINVAL; <------>} <------>ar0230->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); <------>if (IS_ERR(ar0230->reset_gpio)) <------><------>dev_warn(dev, "Failed to get reset-gpios\n"); <------>ar0230->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW); <------>if (IS_ERR(ar0230->pwdn_gpio)) <------><------>dev_warn(dev, "Failed to get pwdn-gpios\n"); <------>ret = ar0230_configure_regulators(ar0230); <------>if (ret) { <------><------>dev_err(dev, "Failed to get power regulators\n"); <------><------>return ret; <------>} <------>mutex_init(&ar0230->mutex); <------>sd = &ar0230->subdev; <------>v4l2_i2c_subdev_init(sd, client, &ar0230_subdev_ops); <------>ret = ar0230_initialize_controls(ar0230); <------>if (ret) <------><------>goto err_destroy_mutex; <------>ret = __ar0230_power_on(ar0230); <------>if (ret) <------><------>goto err_free_handler; <------>ret = ar0230_check_sensor_id(ar0230, client); <------>if (ret) <------><------>goto err_power_off; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API <------>sd->internal_ops = &ar0230_internal_ops; <------>sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | <------><------> V4L2_SUBDEV_FL_HAS_EVENTS; #endif #if defined(CONFIG_MEDIA_CONTROLLER) <------>ar0230->pad.flags = MEDIA_PAD_FL_SOURCE; <------>sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; <------>ret = media_entity_pads_init(&sd->entity, 1, &ar0230->pad); <------>if (ret < 0) <------><------>goto err_power_off; #endif <------>memset(facing, 0, sizeof(facing)); <------>if (strcmp(ar0230->module_facing, "back") == 0) <------><------>facing[0] = 'b'; <------>else <------><------>facing[0] = 'f'; <------>snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s", <------><------> ar0230->module_index, facing, <------><------> AR0230_NAME, dev_name(sd->dev)); <------>ret = v4l2_async_register_subdev_sensor_common(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: <------>__ar0230_power_off(ar0230); err_free_handler: <------>v4l2_ctrl_handler_free(&ar0230->ctrl_handler); err_destroy_mutex: <------>mutex_destroy(&ar0230->mutex); <------>return ret; } static int ar0230_remove(struct i2c_client *client) { <------>struct v4l2_subdev *sd = i2c_get_clientdata(client); <------>struct ar0230 *ar0230 = to_ar0230(sd); <------>v4l2_async_unregister_subdev(sd); #if defined(CONFIG_MEDIA_CONTROLLER) <------>media_entity_cleanup(&sd->entity); #endif <------>v4l2_ctrl_handler_free(&ar0230->ctrl_handler); <------>mutex_destroy(&ar0230->mutex); <------>pm_runtime_disable(&client->dev); <------>if (!pm_runtime_status_suspended(&client->dev)) <------><------>__ar0230_power_off(ar0230); <------>pm_runtime_set_suspended(&client->dev); <------>return 0; } #if IS_ENABLED(CONFIG_OF) static const struct of_device_id ar0230_of_match[] = { <------>{ .compatible = "aptina,ar0230" }, <------>{}, }; MODULE_DEVICE_TABLE(of, ar0230_of_match); #endif static const struct i2c_device_id ar0230_match_id[] = { <------>{ "aptina,ar0230", 0 }, <------>{ }, }; static struct i2c_driver ar0230_i2c_driver = { <------>.driver = { <------><------>.name = AR0230_NAME, <------><------>.pm = &ar0230_pm_ops, <------><------>.of_match_table = of_match_ptr(ar0230_of_match), <------>}, <------>.probe = &ar0230_probe, <------>.remove = &ar0230_remove, <------>.id_table = ar0230_match_id, }; static int __init sensor_mod_init(void) { <------>return i2c_add_driver(&ar0230_i2c_driver); } static void __exit sensor_mod_exit(void) { <------>i2c_del_driver(&ar0230_i2c_driver); } device_initcall_sync(sensor_mod_init); module_exit(sensor_mod_exit); MODULE_DESCRIPTION("Aptina ar0230 sensor driver"); MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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