Hi Paul On Wed, 6 Sept 2023 at 00:32, Paul Elder <paul.elder@xxxxxxxxxxxxxxxx> wrote: > > Add driver for the THine THP7312 ISP. > > Signed-off-by: Paul Elder <paul.elder@xxxxxxxxxxxxxxxx> > --- > drivers/media/i2c/Kconfig | 9 + > drivers/media/i2c/Makefile | 1 + > drivers/media/i2c/thp7312.c | 1674 +++++++++++++++++++++++++++++++++++ > 3 files changed, 1684 insertions(+) > create mode 100644 drivers/media/i2c/thp7312.c > > diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig > index 226454b6a90d..ab7d333f1e43 100644 > --- a/drivers/media/i2c/Kconfig > +++ b/drivers/media/i2c/Kconfig > @@ -807,6 +807,15 @@ config VIDEO_ST_VGXY61 > This is a Video4Linux2 sensor driver for the ST VGXY61 > camera sensor. > > +config VIDEO_THP7312 > + tristate "THP7312 ISP" > + depends on VIDEO_DEV && I2C && VIDEO_V4L2_SUBDEV_API > + help > + Support for THine THP7312 Image Signal Processor > + > + To compile this driver as a module, choose M here: the > + module will be called thp7312. > + > source "drivers/media/i2c/ccs/Kconfig" > source "drivers/media/i2c/et8ek8/Kconfig" > > diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile > index c743aeb5d1ad..c831c0761aa7 100644 > --- a/drivers/media/i2c/Makefile > +++ b/drivers/media/i2c/Makefile > @@ -123,6 +123,7 @@ obj-$(CONFIG_VIDEO_TDA7432) += tda7432.o > obj-$(CONFIG_VIDEO_TDA9840) += tda9840.o > obj-$(CONFIG_VIDEO_TEA6415C) += tea6415c.o > obj-$(CONFIG_VIDEO_TEA6420) += tea6420.o > +obj-$(CONFIG_VIDEO_THP7312) += thp7312.o > obj-$(CONFIG_VIDEO_THS7303) += ths7303.o > obj-$(CONFIG_VIDEO_THS8200) += ths8200.o > obj-$(CONFIG_VIDEO_TLV320AIC23B) += tlv320aic23b.o > diff --git a/drivers/media/i2c/thp7312.c b/drivers/media/i2c/thp7312.c > new file mode 100644 > index 000000000000..c289641a9e92 > --- /dev/null > +++ b/drivers/media/i2c/thp7312.c > @@ -0,0 +1,1674 @@ > +// SPDX-License-Identifier: GPL-2.0-or-later > +/* > + * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved. > + * Copyright (C) 2014-2017 Mentor Graphics Inc. > + * Copyright (C) 2021 THine Electronics, Inc. > + */ > + > +#include <linux/kernel.h> > +#include <linux/clk.h> > +#include <linux/clk-provider.h> > +#include <linux/clkdev.h> > +#include <linux/ctype.h> > +#include <linux/delay.h> > +#include <linux/device.h> > +#include <linux/gpio/consumer.h> > +#include <linux/i2c.h> > +#include <linux/init.h> > +#include <linux/module.h> > +#include <linux/of_device.h> > +#include <linux/pm_runtime.h> > +#include <linux/regulator/consumer.h> > +#include <linux/slab.h> > +#include <linux/types.h> > +#include <linux/firmware.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> > + > +#define V4L2_CID_THINE_BASE V4L2_CID_USER_BASE+0x1100 > + > +#define V4L2_CID_THINE_LOW_LIGHT_COMPENSATION V4L2_CID_THINE_BASE+0x01 > +#define V4L2_CID_THINE_AUTO_FOCUS_METHOD V4L2_CID_THINE_BASE+0x02 > +#define V4L2_CID_THINE_NOISE_REDUCTION_AUTO V4L2_CID_THINE_BASE+0x03 > +#define V4L2_CID_THINE_NOISE_REDUCTION_ABSOLUTE V4L2_CID_THINE_BASE+0x04 I only cast a quick glance at the patch, but this stood out. Presumably these control defines are needed by userspace, so should be split between include/uapi/linux/v4l2-controls.h and include/uapi/linux/thine_thp7312.h (or similarly named header). V4L2_CID_USER_BASE+0x1100 is in part of the block reserved by V4L2_CID_USER_CCS_BASE [1], when it should be unique. Dave [1] https://elixir.bootlin.com/linux/latest/source/include/uapi/linux/v4l2-controls.h#L181 > + > +#define DEFAULT_FPS 30 > + > +/* THP7312 register addresses for format */ > +#define THP7312_REG_SET_OUTPUT_ENABLE (0xF008) > +#define THP7312_REG_SET_OUTPUT_COLOR_COMPRESSION (0xF009) > +#define THP7312_REG_SET_DRIVING_MODE (0xF010) > +#define THP7312_REG_DRIVING_MODE_STATUS (0xF011) > + > +/* THP7312 register values for format */ > +#define THP7312_OUTPUT_ENABLE (0x01) > +#define THP7312_OUTPUT_DISABLE (0x00) > + > +#define THP7312_REG_SET_OUTPUT_COLOR_UYVY (0x00) > +#define THP7312_REG_SET_OUTPUT_COLOR_YUY2 (0x04) > + > +#define THP7312_REG_VIDEO_IMAGE_SIZE (0xF00D) > +#define THP7312_VIDEO_IMAGE_SIZE_640x360 (0x52) > +#define THP7312_VIDEO_IMAGE_SIZE_640x460 (0x03) > +#define THP7312_VIDEO_IMAGE_SIZE_1280x720 (0x0A) > +#define THP7312_VIDEO_IMAGE_SIZE_1920x1080 (0x0B) > +#define THP7312_VIDEO_IMAGE_SIZE_3840x2160 (0x0D) > +#define THP7312_VIDEO_IMAGE_SIZE_4160x3120 (0x14) > +#define THP7312_VIDEO_IMAGE_SIZE_2016x1512 (0x20) > +#define THP7312_VIDEO_IMAGE_SIZE_2048x1536 (0x21) > + > +#define THP7312_REG_VIDEO_FRAME_RATE_MODE (0xF00F) > +#define THP7312_VIDEO_FRAME_RATE_MODE1 (0x80) > +#define THP7312_VIDEO_FRAME_RATE_MODE2 (0x81) > +#define THP7312_VIDEO_FRAME_RATE_MODE3 (0x82) > + > +#define THP7312_REG_JPEG_COMPRESSION_FACTOR (0xF01B) > + > +//THP7312 register addresses for ctrls > +#define THP7312_REG_FIRMWARE_VERSION_1 (0xF000) > +#define THP7312_REG_CAMERA_STATUS (0xF001) > +#define THP7312_REG_FIRMWARE_VERSION_2 (0xF005) > +#define THP7312_REG_FLIP_MIRROR (0xF00C) > +#define THP7312_REG_AE_EXPOSURE_COMPENSATION (0xF022) > +#define THP7312_REG_AE_FLICKER_MODE (0xF023) > +#define THP7312_REG_AE_FIX_FRAME_RATE (0xF02E) > +#define THP7312_REG_MANUAL_WB_RED_GAIN (0xF036) > +#define THP7312_REG_MANUAL_WB_BLUE_GAIN (0xF037) > +#define THP7312_REG_WB_MODE (0xF039) > +#define THP7312_REG_MANUAL_FOCUS_POSITION (0xF03C) > +#define THP7312_REG_AF_CONTROL (0xF040) > +#define THP7312_REG_AF_SETTING (0xF041) > +#define THP7312_REG_SATURATION (0xF052) > +#define THP7312_REG_SHARPNESS (0xF053) > +#define THP7312_REG_BRIGHTNESS (0xF056) > +#define THP7312_REG_CONTRAST (0xF057) > +#define THP7312_REG_NOISE_REDUCTION (0xF059) > + > +#define TH7312_REG_CUSTOM_MIPI_SET (0xF0F6) > +#define TH7312_REG_CUSTOM_MIPI_STATUS (0xF0F7) > +#define TH7312_REG_CUSTOM_MIPI_RD (0xF0F8) > +#define TH7312_REG_CUSTOM_MIPI_TD (0xF0F9) > + > +/* THP7312 register values for control */ > +#define THP7312_FOCUS_MODE_AUTO_CONTINOUS (0x01) > +#define THP7312_FOCUS_MODE_AUTO_LOCK (0x80) > +#define THP7312_FOCUS_MODE_MANUAL (0x10) > + > +enum thp7312_focus_method { > + THP7312_FOCUS_METHOD_CONTRAST = 0x00, > + THP7312_FOCUS_METHOD_PDAF = 0x01, > + THP7312_FOCUS_METHOD_HYBRID = 0x02, > +}; > + > +#define THP7312_WB_MODE_AUTO (0x00) > +#define THP7312_WB_MODE_MANUAL (0x11) > + > +#define THP7312_AE_FLICKER_MODE_50 (0x00) > +#define THP7312_AE_FLICKER_MODE_60 (0x01) > +#define THP7312_AE_FLICKER_MODE_DISABLE (0x80) > + > +#define THP7312_NUM_FORMATS ARRAY_SIZE(thp7312_colour_fmts) > + > +#define THP7312_I2C_ADDRESS_AT_FW_UPDATA (0x60) > + > + > +enum thp7312_mode { > + THP7312_MODE_MIN = 0, > + THP7312_MODE_FHD_30FPS = 0, > + THP7312_MODE_FHD_60FPS = 1, > + THP7312_MODE_3M_30FPS = 2, > + THP7312_MODE_4K_30FPS = 3, > + THP7312_MODE_13M_20FPS = 4, > + THP7312_MODE_MAX = 4, > +}; > + > +enum thp7312_frame_rate { > + THP7312_20_FPS = 0, > + THP7312_30_FPS, > + THP7312_60_FPS, > + THP7312_NUM_FRAMERATES, > +}; > + > +struct thp7312_datafmt { > + u32 code; > + enum v4l2_colorspace colorspace; > +}; > + > +struct reg_value { > + u16 addr; > + u8 val; > +}; > + > +struct thp7312_mode_info { > + enum thp7312_mode mode; > + u16 width; > + u16 height; > + u32 fps; > + u16 frame_time; > + u32 pixel_rate; > + struct reg_value *reg_data; > + u32 reg_data_size; > +}; > + > +static const struct thp7312_datafmt thp7312_colour_fmts[] = { > + /* > + * According to the hardware documentation UYVY should be supported, > + * but in reality it does not work. This could however be fixed in a > + * firmware update, so keep this here both for documentation and to > + * make it easier to re-add later. > + * { MEDIA_BUS_FMT_UYVY8_1X16, V4L2_COLORSPACE_SRGB, }, > + */ > + { MEDIA_BUS_FMT_YUYV8_1X16, V4L2_COLORSPACE_SRGB, }, > +}; > + > +static const int thp7312_framerates[] = { > + [THP7312_20_FPS] = 20, > + [THP7312_30_FPS] = 30, > + [THP7312_60_FPS] = 60, > +}; > + > +static struct reg_value thp7312_setting_fhd30p[] = { > + { THP7312_REG_VIDEO_IMAGE_SIZE, THP7312_VIDEO_IMAGE_SIZE_1920x1080 }, > + { THP7312_REG_VIDEO_FRAME_RATE_MODE, 0x81 }, > + { THP7312_REG_JPEG_COMPRESSION_FACTOR, 0x5E }, > + { THP7312_REG_SET_DRIVING_MODE, 0x01 }, > +}; > + > +static struct reg_value thp7312_setting_fhd60p[] = { > + { THP7312_REG_VIDEO_IMAGE_SIZE, THP7312_VIDEO_IMAGE_SIZE_1920x1080 }, > + { THP7312_REG_VIDEO_FRAME_RATE_MODE, 0x82 }, > + { THP7312_REG_JPEG_COMPRESSION_FACTOR, 0x5E }, > + { THP7312_REG_SET_DRIVING_MODE, 0x01 }, > +}; > + > +static struct reg_value thp7312_setting_3m30p[] = { > + { THP7312_REG_VIDEO_IMAGE_SIZE, THP7312_VIDEO_IMAGE_SIZE_2048x1536 }, > + { THP7312_REG_VIDEO_FRAME_RATE_MODE, 0x81 }, > + { THP7312_REG_JPEG_COMPRESSION_FACTOR, 0x5E }, > + { THP7312_REG_SET_DRIVING_MODE, 0x01 }, > +}; > + > +static struct reg_value thp7312_setting_4k30p[] = { > + { THP7312_REG_VIDEO_IMAGE_SIZE, THP7312_VIDEO_IMAGE_SIZE_3840x2160 }, > + { THP7312_REG_VIDEO_FRAME_RATE_MODE, 0x81 }, > + { THP7312_REG_JPEG_COMPRESSION_FACTOR, 0x5E }, > + { THP7312_REG_SET_DRIVING_MODE, 0x01 }, > +}; > + > +static struct reg_value thp7312_setting_13m20p[] = { > + { THP7312_REG_VIDEO_IMAGE_SIZE, THP7312_VIDEO_IMAGE_SIZE_4160x3120 }, > + { THP7312_REG_VIDEO_FRAME_RATE_MODE, 0x81 }, > + { THP7312_REG_JPEG_COMPRESSION_FACTOR, 0x5E }, > + { THP7312_REG_SET_DRIVING_MODE, 0x01 }, > +}; > + > + > +/* regulator supplies */ > +static const char * const thp7312_supply_name[] = { > + "vddcore", > + "vhtermrx", > + "vddtx", > + "vddhost", > + "vddcmos", > + "vddgpio_0", > + "vddgpio_1", > + "DOVDD", > + "AVDD", > + "DVDD", > +}; > + > +#define THP7312_NUM_SUPPLIES ARRAY_SIZE(thp7312_supply_name) > + > +static struct thp7312_mode_info thp7312_mode_info_data[] = { > + { THP7312_MODE_FHD_30FPS, 1920, 1080, THP7312_30_FPS, 33, 150000000, > + thp7312_setting_fhd30p, ARRAY_SIZE(thp7312_setting_fhd30p)}, > + { THP7312_MODE_FHD_60FPS, 1920, 1080, THP7312_60_FPS, 17, 193750000, > + thp7312_setting_fhd60p, ARRAY_SIZE(thp7312_setting_fhd60p)}, > + { THP7312_MODE_3M_30FPS, 2048, 1536, THP7312_30_FPS, 33, 150000000, > + thp7312_setting_3m30p, ARRAY_SIZE(thp7312_setting_3m30p)}, > + { THP7312_MODE_4K_30FPS, 3840, 2160, THP7312_30_FPS, 33, 300000000, > + thp7312_setting_4k30p, ARRAY_SIZE(thp7312_setting_4k30p)}, > + { THP7312_MODE_13M_20FPS, 4160, 3120, THP7312_20_FPS, 50, 300000000, > + thp7312_setting_13m20p, ARRAY_SIZE(thp7312_setting_13m20p)}, > +}; > + > +#define THP7312_NUM_MODES ARRAY_SIZE(thp7312_mode_info_data) > + > +struct thp7312_isp_dev { > + struct i2c_client *i2c_client; > + struct v4l2_subdev sd; > + struct media_pad pad; > + /* the parsed DT endpoint info */ > + struct v4l2_fwnode_endpoint ep; > + struct gpio_desc *reset_gpio; > + struct regulator_bulk_data supplies[THP7312_NUM_SUPPLIES]; > + struct clk *iclk; > + /* lock to protect all members below */ > + struct mutex lock; > + > + struct thp7312_mode_info *active_mode; > + > + struct v4l2_ctrl_handler ctrl_handler; > + > + struct thp7312_mode_info *current_mode; > + enum thp7312_frame_rate current_fr; > + struct v4l2_fract frame_interval; > + struct v4l2_mbus_framefmt fmt; > + > + bool focus_mode_auto; > + bool af_continuous; > + bool af_lock; > + enum thp7312_focus_method af_method; > + int boot_mode; > + > + const char *fw_name; > + u8 *fw_data; > + size_t fw_size; > + > + u8 fw_update_mode; > + u16 thp7312_register_rw_address; > + u8 fw_major_version; > + u8 fw_minor_version; > + > + bool streaming; > +}; > + > +static inline struct thp7312_isp_dev *to_thp7312_dev(struct v4l2_subdev *sd) > +{ > + return container_of(sd, struct thp7312_isp_dev, sd); > +} > + > +static int thp7312_write_reg(struct thp7312_isp_dev *isp_dev, u16 reg, u8 val) > +{ > + struct i2c_client *client = isp_dev->i2c_client; > + int ret = 0; > + u8 buf[3] = {0}; > + > + buf[0] = reg >> 8; > + buf[1] = reg & 0xff; > + buf[2] = val; > + > + ret = i2c_master_send(client, buf, 3); > + if (ret < 0) { > + dev_err(&client->dev, "%s(): write reg failed, reg=0x%x,val=0x%x ret=%d\n", > + __func__, reg, val, ret); > + return ret; > + } > + > + dev_err(&client->dev, "%s(): wrote reg, reg=0x%x,val=0x%x ret=%d\n", > + __func__, reg, val, ret); > + > + return 0; > +} > + > +static int thp7312_read_reg(struct thp7312_isp_dev *isp_dev, u16 reg, u8 *val) > +{ > + struct i2c_client *client = isp_dev->i2c_client; > + struct i2c_msg msgs[2]; > + u8 buf[2]; > + int ret; > + > + buf[0] = reg >> 8; > + buf[1] = reg & 0xff; > + msgs[0].addr = client->addr; > + msgs[0].flags = 0; > + msgs[0].len = 2; > + msgs[0].buf = buf; > + > + msgs[1].addr = client->addr; > + msgs[1].flags = I2C_M_RD; > + msgs[1].len = 1; > + msgs[1].buf = buf; > + > + ret = i2c_transfer(client->adapter, msgs, 2); > + if (ret < 0) { > + dev_err(&client->dev, "%s():reg=0x%x ret=%d\n", __func__, reg, ret); > + return ret; > + } > + > + *val = buf[0]; > + > + return 0; > +} > + > +static int thp7312_check_valid_mode(const struct thp7312_mode_info *mode_info, > + enum thp7312_frame_rate frame_rate) > +{ > + struct thp7312_mode_info *info; > + enum thp7312_mode mode = mode_info->mode; > + > + if (mode < THP7312_MODE_MIN || THP7312_MODE_MAX < mode) > + return -EINVAL; > + > + info = &thp7312_mode_info_data[mode]; > + if (info->mode != mode || info->fps != frame_rate) > + return -EINVAL; > + > + return 0; > +} > + > +#define thp7312_read_poll_timeout(dev, addr, val, cond, sleep_us, timeout_us) \ > +({ \ > + int __ret; \ > + u64 __timeout_us = (timeout_us); \ > + unsigned long __sleep_us = (sleep_us); \ > + ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \ > + might_sleep_if((__sleep_us) != 0); \ > + for (;;) { \ > + __ret = thp7312_read_reg((dev), (addr), &(val)); \ > + if (cond) \ > + break; \ > + if (__ret < 0 || \ > + (__timeout_us && \ > + ktime_compare(ktime_get(), __timeout) > 0)) { \ > + __ret = thp7312_read_reg((dev), (addr), &(val)); \ > + break; \ > + } \ > + if (__sleep_us) \ > + usleep_range((__sleep_us >> 2) + 1, __sleep_us); \ > + } \ > + (cond) ? 0 : (__ret ? __ret : -ETIMEDOUT); \ > +}) > + > +static int thp7312_set_mipi_regs(struct thp7312_isp_dev *isp_dev, u16 reg, > + u8 *lanes, u8 num_lanes) > +{ > + u8 used_lanes = 0; > + u8 conv_lanes[4]; > + u8 val; > + int ret, i; > + > + if (num_lanes != 4) > + return -EINVAL; > + > + /* > + * The value that we write to the register is the index in the > + * data-lanes array, so we need to do a conversion. Do this in the same > + * pass as validating data-lanes. > + */ > + for (i = 0; i < num_lanes; i++) { > + if (lanes[i] > 4) > + return -EINVAL; > + > + if (used_lanes & (1 << lanes[i])) > + return -EINVAL; > + > + used_lanes |= 1 << lanes[i]; > + > + /* > + * data-lanes is 1-indexed while we'll use 0-indexing for > + * writing the register. > + */ > + conv_lanes[lanes[i] - 1] = i; > + } > + > + val = ((conv_lanes[3] & 0x03) << 6) | > + ((conv_lanes[2] & 0x03) << 4) | > + ((conv_lanes[1] & 0x03) << 2) | > + (conv_lanes[0] & 0x03); > + > + ret = thp7312_write_reg(isp_dev, reg, val); > + if (ret < 0) > + return ret; > + > + return 0; > +} > + > +static int thp7312_set_mipi_lanes(struct thp7312_isp_dev *isp_dev) > +{ > + struct device *dev = &isp_dev->i2c_client->dev; > + int ret; > + u8 val; > + int i; > + u32 data_lanes_rx_u32[4]; > + unsigned char data_lanes_rx[4]; > + > + ret = of_property_read_u32_array(dev->of_node, "thine,rx,data-lanes", > + data_lanes_rx_u32, ARRAY_SIZE(data_lanes_rx_u32)); > + if (ret < 0) { > + dev_err(dev, "Failed to read property thine,rx,data-lanes: %d\n", ret); > + return ret; > + } > + > + for (i = 0; i < 4; i++) > + data_lanes_rx[i] = (u8)data_lanes_rx_u32[i]; > + > + ret = thp7312_set_mipi_regs(isp_dev, TH7312_REG_CUSTOM_MIPI_RD, > + data_lanes_rx, > + ARRAY_SIZE(data_lanes_rx)); > + if (ret < 0) { > + dev_err(dev, "Failed to set RD MIPI lanes: %d\n", ret); > + return ret; > + } > + > + thp7312_set_mipi_regs(isp_dev, TH7312_REG_CUSTOM_MIPI_TD, > + isp_dev->ep.bus.mipi_csi2.data_lanes, > + isp_dev->ep.bus.mipi_csi2.num_data_lanes); > + if (ret < 0) { > + dev_err(dev, "Failed to set TD MIPI lanes: %d\n", ret); > + return ret; > + } > + > + ret = thp7312_write_reg(isp_dev, TH7312_REG_CUSTOM_MIPI_SET, 1); > + if (ret < 0) > + return ret; > + > + ret = thp7312_read_poll_timeout(isp_dev, TH7312_REG_CUSTOM_MIPI_STATUS, > + val, val == 0x00, 100000, 2000000); > + if (ret < 0) { > + dev_err(&isp_dev->i2c_client->dev, > + "Failed to poll MIPI lane status: %d\n", ret); > + return ret; > + } > + > + return 0; > +} > + > +static int thp7312_change_mode(struct thp7312_isp_dev *isp_dev, > + enum thp7312_mode mode) > +{ > + struct i2c_client *client = isp_dev->i2c_client; > + u8 reg_val = 0; > + struct reg_value *reg_data; > + int i; > + int ret; > + struct thp7312_mode_info *info = &thp7312_mode_info_data[mode]; > + > + ret = thp7312_read_poll_timeout(isp_dev, THP7312_REG_CAMERA_STATUS, reg_val, > + reg_val == 0x80, 20000, 200000); > + if (ret < 0) { > + dev_err(&client->dev, "%s(): failed to poll ISP: %d\n", > + __func__, ret); > + return ret; > + } > + > + reg_data = info->reg_data; > + for (i = 0; i < info->reg_data_size; i++) { > + ret = thp7312_write_reg(isp_dev, reg_data[i].addr, reg_data[i].val); > + if (ret < 0) { > + dev_err(&client->dev, "%s(): write mode failed\n", __func__); > + return ret; > + } > + } > + > + ret = thp7312_read_poll_timeout(isp_dev, THP7312_REG_DRIVING_MODE_STATUS, > + reg_val, reg_val == 0x01, 20000, 100000); > + if (ret) { > + dev_err(&client->dev,"%s(): failed\n", __func__); > + return ret; > + } > + > + isp_dev->active_mode = info; > + > + return 0; > +} > + > +static int thp7312_set_framefmt(struct thp7312_isp_dev *isp_dev, > + struct v4l2_mbus_framefmt *format) > +{ > + int ret = 0; > + > + struct i2c_client *client = isp_dev->i2c_client; > + > + switch (format->code) { > + case MEDIA_BUS_FMT_UYVY8_1X16: > + /* YUV422, UYVY */ > + ret = thp7312_write_reg(isp_dev, THP7312_REG_SET_OUTPUT_COLOR_COMPRESSION, > + THP7312_REG_SET_OUTPUT_COLOR_UYVY); > + break; > + case MEDIA_BUS_FMT_YUYV8_1X16: > + /* YUV422, YUYV */ > + ret = thp7312_write_reg(isp_dev, THP7312_REG_SET_OUTPUT_COLOR_COMPRESSION, > + THP7312_REG_SET_OUTPUT_COLOR_YUY2); > + break; > + default: > + dev_err(&client->dev, "thp7312_set_framefmt: ERROR \n"); > + return -EINVAL; > + } > + > + return ret; > +} > + > +static int thp7312_init_mode(struct thp7312_isp_dev *isp_dev) > +{ > + struct i2c_client *client = isp_dev->i2c_client; > + int ret = 0; > + enum thp7312_mode mode = isp_dev->current_mode->mode; > + > + dev_dbg(&client->dev, "%s(): mode = %d\n",__func__, mode); > + if ((mode > THP7312_MODE_MAX || mode < THP7312_MODE_MIN) ){ > + dev_err(&client->dev, "%s(): thp7312 mode is invalid\n", __func__); > + return -EINVAL; > + } > + > + ret = thp7312_set_framefmt(isp_dev, &isp_dev->fmt); > + if (ret) > + return ret; > + > + return thp7312_change_mode(isp_dev, mode); > +} > + > +static int thp7312_stream_enable(struct thp7312_isp_dev *isp_dev, int enable) > +{ > + return thp7312_write_reg(isp_dev, THP7312_REG_SET_OUTPUT_ENABLE, > + enable ? THP7312_OUTPUT_ENABLE > + : THP7312_OUTPUT_DISABLE); > +} > + > +static int thp7312_reset(struct thp7312_isp_dev *isp_dev) > +{ > + struct device *dev = &isp_dev->i2c_client->dev; > + u8 camera_status = -1; > + int ret; > + > + gpiod_set_value_cansleep(isp_dev->reset_gpio, 1); > + > + fsleep(10000); > + > + gpiod_set_value_cansleep(isp_dev->reset_gpio, 0); > + > + fsleep(300000); > + > + while (camera_status != 0x80) { > + ret = thp7312_read_reg(isp_dev, 0xF001, &camera_status); > + if (ret < 0) { > + dev_err(dev, "Failed to read camera status register\n"); > + return ret; > + } > + > + if (camera_status == 0x00) { > + dev_info(dev, "Camera initializing..."); > + } else if (camera_status == 0x80) { > + dev_info(dev, "Camera initialization done"); > + break; > + } else { > + dev_err(dev, > + "Camera Status field incorrect; camera_status=%x\n", > + camera_status); > + } > + > + usleep_range(70000, 80000); > + } > + > + return 0; > +} > + > +static int thp7312_set_power_on(struct device *dev) > +{ > + struct v4l2_subdev *sd = dev_get_drvdata(dev); > + struct thp7312_isp_dev *isp_dev = to_thp7312_dev(sd); > + > + int ret; > + > + ret = regulator_bulk_enable(THP7312_NUM_SUPPLIES, isp_dev->supplies); > + if (ret < 0) > + return ret; > + > + ret = clk_prepare_enable(isp_dev->iclk); > + if (ret < 0) { > + dev_err(dev, "clk prepare enable failed\n"); > + goto error_pwdn; > + } > + > + /* > + * We cannot assume that turning off and on again will reset, so do a > + * software reset on power up. While at it, reprogram the MIPI lanes, > + * in case they get cleared when powered off. > + */ > + ret = thp7312_reset(isp_dev); > + if (ret < 0) > + goto error_clk_disable; > + > + ret = thp7312_set_mipi_lanes(isp_dev); > + if (ret < 0) > + goto error_clk_disable; > + > + return 0; > + > +error_clk_disable: > + clk_disable_unprepare(isp_dev->iclk); > +error_pwdn: > + regulator_bulk_disable(THP7312_NUM_SUPPLIES, isp_dev->supplies); > + > + return ret; > +} > + > +static int thp7312_set_power_off(struct device *dev) > +{ > + struct v4l2_subdev *sd = dev_get_drvdata(dev); > + struct thp7312_isp_dev *isp_dev = to_thp7312_dev(sd); > + > + isp_dev->streaming = false; > + > + regulator_bulk_disable(THP7312_NUM_SUPPLIES, isp_dev->supplies); > + clk_disable_unprepare(isp_dev->iclk); > + > + return 0; > +} > + > +static int thp7312_get_regulators(struct thp7312_isp_dev *isp_dev) > +{ > + int i; > + > + for (i = 0; i < THP7312_NUM_SUPPLIES; i++) > + isp_dev->supplies[i].supply = thp7312_supply_name[i]; > + > + return devm_regulator_bulk_get(&isp_dev->i2c_client->dev, > + THP7312_NUM_SUPPLIES, > + isp_dev->supplies); > +} > + > +/* --------------- Subdev Operations --------------- */ > + > +static const struct thp7312_mode_info * > +thp7312_find_mode(struct thp7312_isp_dev *isp_dev, enum thp7312_frame_rate fr, > + int width, int height, bool nearest) > +{ > + struct thp7312_mode_info *mode_info; > + unsigned int delta = UINT_MAX; > + unsigned int smallest_delta_index = 0; > + unsigned int tmp; > + int i; > + > + for (i = 0; i < THP7312_NUM_MODES; i++) { > + mode_info = &thp7312_mode_info_data[i]; > + if (mode_info->width == width && > + mode_info->height == height && > + mode_info->fps == fr) > + return mode_info; > + > + tmp = abs((mode_info->width * mode_info->height) - (width * height)); > + if (tmp < delta) { > + delta = tmp; > + smallest_delta_index = i; > + } > + } > + > + if (!nearest) > + return NULL; > + > + return &thp7312_mode_info_data[smallest_delta_index]; > +} > + > +static int thp7312_try_frame_interval(struct thp7312_isp_dev *isp_dev, > + struct v4l2_fract *fi, > + u32 width, u32 height) > +{ > + const struct thp7312_mode_info *mode_info; > + int minfps, maxfps, best_fps, fps; > + int i; > + enum thp7312_frame_rate rate = THP7312_20_FPS; > + minfps = thp7312_framerates[THP7312_20_FPS]; > + maxfps = thp7312_framerates[THP7312_60_FPS]; > + > + if (fi->numerator == 0) { > + fi->denominator = maxfps; > + fi->numerator = 1; > + rate = THP7312_60_FPS; > + goto find_mode; > + } > + > + fps = clamp_val(DIV_ROUND_CLOSEST(fi->denominator, fi->numerator), > + minfps, maxfps); > + > + best_fps = minfps; > + for (i = 0; i < ARRAY_SIZE(thp7312_framerates); i++) { > + int curr_fps = thp7312_framerates[i]; > + > + if (abs(curr_fps - fps) < abs(best_fps - fps)) { > + best_fps = curr_fps; > + rate = i; > + } > + } > + > + fi->numerator = 1; > + fi->denominator = best_fps; > + > +find_mode: > + mode_info = thp7312_find_mode(isp_dev, rate, width, height, false); > + return mode_info ? rate : -EINVAL; > +} > + > +static int thp7312_get_fmt(struct v4l2_subdev *sd, > + struct v4l2_subdev_state *sd_state, > + struct v4l2_subdev_format *format) > +{ > + struct thp7312_isp_dev *isp_dev = to_thp7312_dev(sd); > + struct v4l2_mbus_framefmt *fmt; > + > + if (format->pad != 0) > + return -EINVAL; > + > + mutex_lock(&isp_dev->lock); > + > + if (format->which == V4L2_SUBDEV_FORMAT_TRY) { > + fmt = v4l2_subdev_get_try_format(&isp_dev->sd, sd_state, > + format->pad); > + } else { > + fmt = &isp_dev->fmt; > + } > + > + format->format = *fmt; > + > + mutex_unlock(&isp_dev->lock); > + > + return 0; > +} > + > +static int thp7312_try_fmt_internal(struct v4l2_subdev *sd, > + struct v4l2_mbus_framefmt *fmt, > + enum thp7312_frame_rate frame_rate, > + const struct thp7312_mode_info **new_mode) > +{ > + struct thp7312_isp_dev *isp_dev = to_thp7312_dev(sd); > + const struct thp7312_mode_info *mode_info; > + int i; > + > + mode_info = thp7312_find_mode(isp_dev, frame_rate, fmt->width, fmt->height, true); > + if (!mode_info) > + return -EINVAL; > + fmt->width = mode_info->width; > + fmt->height = mode_info->height; > + memset(fmt->reserved, 0, sizeof(fmt->reserved)); > + > + if (new_mode) > + *new_mode = mode_info; > + > + for (i = 0; i < ARRAY_SIZE(thp7312_colour_fmts); i++) > + if (thp7312_colour_fmts[i].code == fmt->code) > + break; > + if (i >= ARRAY_SIZE(thp7312_colour_fmts)) > + i = 0; > + > + fmt->code = thp7312_colour_fmts[i].code; > + fmt->colorspace = thp7312_colour_fmts[i].colorspace; > + fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace); > + fmt->quantization = V4L2_QUANTIZATION_FULL_RANGE; > + fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace); > + > + return 0; > +} > + > +static int thp7312_set_fmt(struct v4l2_subdev *sd, > + struct v4l2_subdev_state *sd_state, > + struct v4l2_subdev_format *format) > +{ > + struct thp7312_isp_dev *isp_dev = to_thp7312_dev(sd); > + const struct thp7312_mode_info *new_mode; > + struct v4l2_mbus_framefmt *mbus_fmt = &format->format; > + struct v4l2_mbus_framefmt *fmt; > + int ret; > + > + if (format->pad != 0) > + return -EINVAL; > + > + mutex_lock(&isp_dev->lock); > + > + if (isp_dev->streaming) { > + ret = -EBUSY; > + goto out; > + } > + > + ret = thp7312_try_fmt_internal(sd, mbus_fmt, > + isp_dev->current_fr, &new_mode); > + if (ret) > + goto out; > + > + if (format->which == V4L2_SUBDEV_FORMAT_TRY) > + fmt = v4l2_subdev_get_try_format(sd, sd_state, format->pad); > + else > + fmt = &isp_dev->fmt; > + > + *fmt = *mbus_fmt; > + > + if (format->which == V4L2_SUBDEV_FORMAT_TRY) > + goto out; > + > + isp_dev->current_mode = (struct thp7312_mode_info *)new_mode; > + isp_dev->fmt = *mbus_fmt; > + > +out: > + mutex_unlock(&isp_dev->lock); > + return ret; > +} > + > +static int thp7312_enum_frame_size(struct v4l2_subdev *sd, > + struct v4l2_subdev_state *sd_state, > + struct v4l2_subdev_frame_size_enum *fse) > +{ > + if (fse->pad != 0) > + return -EINVAL; > + if (fse->index >= THP7312_NUM_MODES) > + return -EINVAL; > + > + fse->min_width = > + thp7312_mode_info_data[fse->index].width; > + fse->max_width = fse->min_width; > + fse->min_height = > + thp7312_mode_info_data[fse->index].height; > + fse->max_height = fse->min_height; > + > + return 0; > +} > + > +static int thp7312_enum_frame_interval(struct v4l2_subdev *sd, > + struct v4l2_subdev_state *sd_state, > + struct v4l2_subdev_frame_interval_enum *fie) > +{ > + int i, j, count; > + > + if (fie->pad != 0) > + return -EINVAL; > + if (fie->index >= THP7312_NUM_FRAMERATES) > + return -EINVAL; > + > + if (fie->width == 0 || fie->height == 0 || fie->code == 0) > + return -EINVAL; > + > + fie->interval.numerator = 1; > + > + /* > + * This is correct but, given the limited number of modes that we > + * support, could be heavily simplified. Or do we want to keep this > + * complexity for future-proofing? > + */ > + count = 0; > + for (i = 0; i < THP7312_NUM_FRAMERATES; i++) { > + for (j = 0; j < THP7312_NUM_MODES; j++) { > + if (fie->width == thp7312_mode_info_data[j].width && > + fie->height == thp7312_mode_info_data[j].height && > + !thp7312_check_valid_mode(&thp7312_mode_info_data[j], i)) > + count++; > + > + if (fie->index == (count - 1)) { > + fie->interval.denominator = thp7312_framerates[i]; > + return 0; > + } > + } > + } > + > + return -EINVAL; > +} > + > +static int thp7312_g_frame_interval(struct v4l2_subdev *sd, > + struct v4l2_subdev_frame_interval *fi) > +{ > + struct thp7312_isp_dev *isp_dev = to_thp7312_dev(sd); > + > + mutex_lock(&isp_dev->lock); > + fi->interval = isp_dev->frame_interval; > + mutex_unlock(&isp_dev->lock); > + > + return 0; > +} > + > +static int thp7312_s_frame_interval(struct v4l2_subdev *sd, > + struct v4l2_subdev_frame_interval *fi) > +{ > + struct thp7312_isp_dev *isp_dev = to_thp7312_dev(sd); > + const struct thp7312_mode_info *mode_info; > + int frame_rate, ret = 0; > + > + if (fi->pad != 0) > + return -EINVAL; > + > + mutex_lock(&isp_dev->lock); > + > + if (isp_dev->streaming) { > + ret = -EBUSY; > + goto out; > + } > + > + mode_info = isp_dev->current_mode; > + > + frame_rate = thp7312_try_frame_interval(isp_dev, &fi->interval, > + mode_info->width, mode_info->height); > + if (frame_rate < 0) { > + /* This shouldn't be possible */ > + ret = -EINVAL; > + goto out; > + } > + > + mode_info = thp7312_find_mode(isp_dev, frame_rate, mode_info->width, > + mode_info->height, true); > + if (!mode_info) { > + ret = -EINVAL; > + goto out; > + } > + > + isp_dev->current_fr = frame_rate; > + isp_dev->frame_interval = fi->interval; > + isp_dev->current_mode = (struct thp7312_mode_info *)mode_info; > + > +out: > + mutex_unlock(&isp_dev->lock); > + return ret; > +} > + > +static int thp7312_enum_mbus_code(struct v4l2_subdev *sd, > + struct v4l2_subdev_state *sd_state, > + struct v4l2_subdev_mbus_code_enum *code) > +{ > + if (code->pad != 0) > + return -EINVAL; > + if (code->index >= THP7312_NUM_FORMATS) > + return -EINVAL; > + > + code->code = thp7312_colour_fmts[code->index].code; > + > + return 0; > +} > + > +static int thp7312_s_stream(struct v4l2_subdev *sd, int enable) > +{ > + struct thp7312_isp_dev *isp_dev = to_thp7312_dev(sd); > + struct i2c_client *client = isp_dev->i2c_client; > + int ret = 0; > + > + mutex_lock(&isp_dev->lock); > + > + if (!enable) { > + ret = thp7312_stream_enable(isp_dev, enable); > + if (ret < 0) { > + dev_err(&client->dev, "stream stop failed: %d\n", ret); > + goto finish_unlock; > + } > + > + isp_dev->streaming = enable; > + > + goto finish_pm; > + } > + > + ret = pm_runtime_resume_and_get(&client->dev); > + if (ret < 0) > + goto finish_unlock; > + > + ret = thp7312_check_valid_mode(isp_dev->current_mode, > + isp_dev->current_fr); > + if (ret) { > + dev_err(&client->dev, "Not support WxH@fps=%dx%d@%d\n", > + isp_dev->current_mode->width, > + isp_dev->current_mode->height, > + thp7312_framerates[isp_dev->current_fr]); > + goto finish_pm; > + } > + > + ret = thp7312_init_mode(isp_dev); > + if (ret) > + goto finish_pm; > + > + ret = thp7312_stream_enable(isp_dev, enable); > + if (ret < 0) > + goto finish_pm; > + > + isp_dev->streaming = enable; > + > +finish_pm: > + pm_runtime_put(&client->dev); > +finish_unlock: > + mutex_unlock(&isp_dev->lock); > + > + return ret; > +} > + > +static const struct v4l2_subdev_core_ops thp7312_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 thp7312_video_ops = { > + .g_frame_interval = thp7312_g_frame_interval, > + .s_frame_interval = thp7312_s_frame_interval, > + .s_stream = thp7312_s_stream, > +}; > + > +static const struct v4l2_subdev_pad_ops thp7312_pad_ops = { > + .enum_mbus_code = thp7312_enum_mbus_code, > + .get_fmt = thp7312_get_fmt, > + .set_fmt = thp7312_set_fmt, > + .enum_frame_size = thp7312_enum_frame_size, > + .enum_frame_interval = thp7312_enum_frame_interval, > +}; > + > +static const struct v4l2_subdev_ops thp7312_subdev_ops = { > + .core = &thp7312_core_ops, > + .video = &thp7312_video_ops, > + .pad = &thp7312_pad_ops, > +}; > + > +static inline struct thp7312_isp_dev *to_thp7312_from_ctrl(struct v4l2_ctrl *ctrl) > +{ > + return container_of(ctrl->handler, struct thp7312_isp_dev, ctrl_handler); > +} > + > +static int thp7312_set_manual_focus_position(struct thp7312_isp_dev *isp_dev, s32 val) > +{ > + struct i2c_client *client = isp_dev->i2c_client; > + struct device *dev = &client->dev; > + > + int ret = 0; > + u16 value = 3000; > + > + static u16 focus_values[] = { > + 3000, 1000, 600, 450, 350, > + 290, 240, 200, 170, 150, > + 140, 130, 120, 110, 100, > + 93, 87, 83, 80, > + }; > + > + if (0 <= val && val < ARRAY_SIZE(focus_values)) > + value = focus_values[val]; > + else > + dev_err(dev, "unsupported focus position = %d\n",val); > + > + ret = thp7312_write_reg(isp_dev, THP7312_REG_MANUAL_FOCUS_POSITION, > + (s8)(value >> 8)); > + if (ret < 0) > + goto out; > + > + ret = thp7312_write_reg(isp_dev, THP7312_REG_MANUAL_FOCUS_POSITION + 1, > + (s8)(value & 0x00ff)); > + if (ret < 0) > + goto out; > + > +out: > + if (ret < 0) > + dev_err(dev, "Failed to set manual focus position %d: %d\n", val, ret); > + > + return ret; > +} > + > +static int > +thp7312_set_focus_mode(struct thp7312_isp_dev *isp_dev, bool auto_focus, > + bool continous, bool lock, enum thp7312_focus_method method) > +{ > + u8 value; > + int ret = 0; > + > + /* Set Continous and AF Method */ > + > + if (continous == true) { > + /* Continous AF */ > + if (method == THP7312_FOCUS_METHOD_CONTRAST) > + value = 0x30; > + else if (method == THP7312_FOCUS_METHOD_PDAF) > + value = 0x70; > + else /* method == THP7312_FOCUS_METHOD_HYBRID */ > + value = 0xF0; > + } else { > + /* One Shot AF */ > + if (method == THP7312_FOCUS_METHOD_CONTRAST) > + value = 0x00; > + else if (method == THP7312_FOCUS_METHOD_PDAF) > + value = 0x40; > + else /* method == THP7312_FOCUS_METHOD_HYBRID */ > + value = 0x80; > + } > + > + ret = thp7312_write_reg(isp_dev, THP7312_REG_AF_SETTING, value); > + > + isp_dev->af_continuous = continous; > + isp_dev->af_method = method; > + > + /* Set Lock and Focus Mode */ > + > + if (auto_focus == true) { > + if (lock == true && continous == true) > + value = THP7312_FOCUS_MODE_AUTO_LOCK; > + else > + value = THP7312_FOCUS_MODE_AUTO_CONTINOUS; > + > + isp_dev->focus_mode_auto = true; > + } else { > + /* Lock AF to prepare to set manual focus mode */ > + ret = thp7312_write_reg(isp_dev, THP7312_REG_AF_CONTROL, > + THP7312_FOCUS_MODE_AUTO_LOCK); > + value = THP7312_FOCUS_MODE_MANUAL; > + > + isp_dev->focus_mode_auto = false; > + } > + > + ret = thp7312_write_reg(isp_dev, THP7312_REG_AF_CONTROL, value); > + > + isp_dev->af_lock = lock; > + > + return ret; > +} > + > +static int thp7312_s_ctrl(struct v4l2_ctrl *ctrl) > +{ > + struct thp7312_isp_dev *isp_dev = to_thp7312_from_ctrl(ctrl); > + struct i2c_client *client = isp_dev->i2c_client; > + struct device *dev = &client->dev; > + int ret = 0; > + u8 value; > + bool lock; > + > + if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE) > + return -EINVAL; > + > + dev_dbg(dev, "s_ctrl id %d, value %d\n", ctrl->id, ctrl->val); > + > + if (pm_runtime_get_if_in_use(&client->dev)) > + return 0; > + > + switch (ctrl->id) { > + > + case V4L2_CID_BRIGHTNESS: > + value = clamp_t(int, ctrl->val, -10, 10) + 10; > + ret = thp7312_write_reg(isp_dev, THP7312_REG_BRIGHTNESS, value); > + break; > + > + case V4L2_CID_THINE_LOW_LIGHT_COMPENSATION: > + /* 0 = Auto adjust frame rate, 1 = Fix frame rate */ > + value = (ctrl->val == true) ? 0 : 1; > + ret = thp7312_write_reg(isp_dev, THP7312_REG_AE_FIX_FRAME_RATE, value); > + break; > + > + case V4L2_CID_FOCUS_AUTO: > + lock = (ctrl->val == true) ? false : true; > + ret = thp7312_set_focus_mode(isp_dev, true, true, lock, > + isp_dev->af_method); > + break; > + > + case V4L2_CID_FOCUS_ABSOLUTE: > + ret = thp7312_set_manual_focus_position(isp_dev, ctrl->val); > + if (ret < 0) { > + dev_err(dev, "thp7312_set_manual_focus failed %d\n", value); > + break; > + } > + > + /* > + * If we're in auto, don't change to manual mode. The hardware > + * will not apply the focus potision if it's set to auto, so no > + * need to skip that. > + */ > + if (isp_dev->af_continuous == true && isp_dev->af_lock == false) > + break; > + > + /* Change to manual mode */ > + ret = thp7312_set_focus_mode(isp_dev, false, false, false, > + isp_dev->af_method); > + break; > + > + > + case V4L2_CID_AUTO_FOCUS_START: > + /* If we're in auto, don't do one-shot AF. */ > + if (isp_dev->af_continuous == true && isp_dev->af_lock == false) > + break; > + > + /* Change to one-shot auto mode (with lock) */ > + ret = thp7312_set_focus_mode(isp_dev, true, false, true, > + isp_dev->af_method); > + break; > + > + > + case V4L2_CID_THINE_AUTO_FOCUS_METHOD: > + ret = thp7312_set_focus_mode(isp_dev, isp_dev->focus_mode_auto, > + isp_dev->af_continuous, > + isp_dev->af_lock, ctrl->val); > + break; > + > + > + case V4L2_CID_ROTATE: > + if (ctrl->val == 0) > + value = 0; /* 0 degree. camera is set to normal.*/ > + else > + value = 3; /* 180 degree. camera is set to flip & mirror */ > + > + ret = thp7312_write_reg(isp_dev, THP7312_REG_FLIP_MIRROR, value); > + if (ret < 0) > + dev_err(dev, "Failed to set flip and mirror: %d\n", ret); > + break; > + > + case V4L2_CID_THINE_NOISE_REDUCTION_AUTO: > + ret = thp7312_read_reg(isp_dev, THP7312_REG_NOISE_REDUCTION, &value); > + if (ret < 0) { > + dev_err(dev, "Failed to read noise reduction: %d\n", ret); > + break; > + } > + > + value = (ctrl->val == true) ? (value & 0x7F) : (value | 0x80); > + > + ret = thp7312_write_reg(isp_dev, THP7312_REG_NOISE_REDUCTION, value); > + if (ret < 0) > + dev_err(dev, "Failed to set noise reduction auto: %d\n", ret); > + break; > + > + case V4L2_CID_THINE_NOISE_REDUCTION_ABSOLUTE: > + ret = thp7312_read_reg(isp_dev, THP7312_REG_NOISE_REDUCTION, &value); > + if (ret < 0) { > + dev_err(dev, "Failed to read noise reduction: %d\n", ret); > + break; > + } > + > + value = value & 0x80; > + value = value | (ctrl->val & 0x7F); > + > + ret = thp7312_write_reg(isp_dev, THP7312_REG_NOISE_REDUCTION, value); > + if (ret < 0) > + dev_err(dev, "Failed to set noise reduction absolute: %d\n", ret); > + break; > + > + case V4L2_CID_AUTO_WHITE_BALANCE: > + value = (ctrl->val == true) ? THP7312_WB_MODE_AUTO : THP7312_WB_MODE_MANUAL; > + > + ret = thp7312_write_reg(isp_dev, THP7312_REG_WB_MODE, value); > + if (ret < 0) > + dev_err(dev, "Failed to write auto white balance: %d\n", ret); > + break; > + > + case V4L2_CID_RED_BALANCE: > + ret = thp7312_write_reg(isp_dev, THP7312_REG_MANUAL_WB_RED_GAIN, ctrl->val); > + if (ret < 0) > + dev_err(dev, "Failed to write manual red balance: %d\n", ret); > + break; > + > + case V4L2_CID_BLUE_BALANCE: > + ret = thp7312_write_reg(isp_dev, THP7312_REG_MANUAL_WB_BLUE_GAIN, ctrl->val); > + if (ret < 0) > + dev_err(dev, "Failed to write manual blue balance: %d\n", ret); > + break; > + > + case V4L2_CID_AUTO_EXPOSURE_BIAS: > + ret = thp7312_write_reg(isp_dev, THP7312_REG_AE_EXPOSURE_COMPENSATION, ctrl->val); > + break; > + > + case V4L2_CID_POWER_LINE_FREQUENCY: > + if (ctrl->val == V4L2_CID_POWER_LINE_FREQUENCY_60HZ) { > + value = THP7312_AE_FLICKER_MODE_60; > + } else if (ctrl->val==V4L2_CID_POWER_LINE_FREQUENCY_50HZ) { > + value = THP7312_AE_FLICKER_MODE_50; > + } else { > + if (isp_dev->fw_major_version == 40 && isp_dev->fw_minor_version == 03) { > + /* THP7312_AE_FLICKER_MODE_DISABLE is not supported */ > + value = THP7312_AE_FLICKER_MODE_50; > + } else { > + value = THP7312_AE_FLICKER_MODE_DISABLE; > + } > + } > + ret = thp7312_write_reg(isp_dev, THP7312_REG_AE_FLICKER_MODE, value); > + break; > + > + case V4L2_CID_SATURATION: > + ret = thp7312_write_reg(isp_dev, THP7312_REG_SATURATION, ctrl->val); > + break; > + > + case V4L2_CID_CONTRAST: > + ret = thp7312_write_reg(isp_dev, THP7312_REG_CONTRAST, ctrl->val); > + break; > + > + case V4L2_CID_SHARPNESS: > + ret = thp7312_write_reg(isp_dev, THP7312_REG_SHARPNESS, ctrl->val); > + break; > + > + default: > + dev_err(dev, "unsupported control id: %d\n", ctrl->id); > + break; > + } > + > + pm_runtime_put(&client->dev); > + > + return ret; > +} > + > +static const struct v4l2_ctrl_ops thp7312_ctrl_ops = { > + .s_ctrl = thp7312_s_ctrl, > +}; > + > +static const struct v4l2_ctrl_config thp7312_v4l2_ctrls_custom[] = { > + { > + .ops = &thp7312_ctrl_ops, > + .id = V4L2_CID_THINE_LOW_LIGHT_COMPENSATION, > + .name = "Low Light Compensation", > + .type = V4L2_CTRL_TYPE_BOOLEAN, > + .min = 0, > + .def = 1, > + .max = 1, > + .step = 1, > + }, > + > + { > + .ops = &thp7312_ctrl_ops, > + .id = V4L2_CID_THINE_AUTO_FOCUS_METHOD, > + .name = "Auto-Focus Method", > + .type = V4L2_CTRL_TYPE_INTEGER, > + .min = 0, > + .def = 2, > + .max = 2, > + .step = 1, > + }, > + > + { > + .ops = &thp7312_ctrl_ops, > + .id = V4L2_CID_THINE_NOISE_REDUCTION_AUTO, > + .name = "Noise Reduction Auto", > + .type = V4L2_CTRL_TYPE_BOOLEAN, > + .min = 0, > + .def = 1, > + .max = 1, > + .step = 1, > + }, > + > + { > + .ops = &thp7312_ctrl_ops, > + .id = V4L2_CID_THINE_NOISE_REDUCTION_ABSOLUTE, > + .name = "Noise Reduction Level", > + .type = V4L2_CTRL_TYPE_INTEGER, > + .min = 0, > + .def = 0, > + .max = 10, > + .step = 1, > + }, > +}; > + > +static const s64 exp_bias_qmenu[] = { > + -2000, -1667, -1333, -1000, -667, -333, 0, 333, 667, 1000, 1333, 1667, 2000 > +}; > + > +static int thp7312_init_controls(struct thp7312_isp_dev *isp_dev) > +{ > + struct v4l2_ctrl *ctrl; > + struct device *dev = &isp_dev->i2c_client->dev; > + int i, ret = 0; > + struct v4l2_ctrl_handler *hdl = &isp_dev->ctrl_handler; > + struct v4l2_fwnode_device_properties props; > + > + v4l2_ctrl_handler_init(hdl, 64); > + > + v4l2_ctrl_new_std(hdl, &thp7312_ctrl_ops, V4L2_CID_FOCUS_AUTO, > + 0, 1, 1, 1); > + v4l2_ctrl_new_std(hdl, &thp7312_ctrl_ops, V4L2_CID_AUTO_FOCUS_START, > + 1, 1, 1, 1); > + /* 0: 3000cm, 18: 8cm */ > + ctrl = v4l2_ctrl_new_std(hdl, &thp7312_ctrl_ops, V4L2_CID_FOCUS_ABSOLUTE, > + 0, 18, 1, 0); > + if (ctrl != NULL) { > + /* > + * This needs to be set so that the value will be saved even if > + * it is set while FOCUS_AUTO is true > + */ > + ctrl->flags |= V4L2_CTRL_FLAG_EXECUTE_ON_WRITE; > + } > + > + v4l2_ctrl_new_std(hdl, &thp7312_ctrl_ops, V4L2_CID_AUTO_WHITE_BALANCE, > + 0, 1, 1, 1); > + /* 32: 1x, 255: 7.95x */ > + v4l2_ctrl_new_std(hdl, &thp7312_ctrl_ops, V4L2_CID_RED_BALANCE, > + 32, 255, 1, 64); > + /* 32: 1x, 255: 7.95x */ > + v4l2_ctrl_new_std(hdl, &thp7312_ctrl_ops, V4L2_CID_BLUE_BALANCE, > + 32, 255, 1, 50); > + > + v4l2_ctrl_new_std(hdl, &thp7312_ctrl_ops, V4L2_CID_BRIGHTNESS, > + -10, 10, 1, 0); > + v4l2_ctrl_new_std(hdl, &thp7312_ctrl_ops, V4L2_CID_SATURATION, > + 0, 31, 1, 10); > + v4l2_ctrl_new_std(hdl, &thp7312_ctrl_ops, V4L2_CID_CONTRAST, > + 0, 20, 1, 10); > + v4l2_ctrl_new_std(hdl, &thp7312_ctrl_ops, V4L2_CID_SHARPNESS, > + 0, 31, 1, 8); > + > + v4l2_ctrl_new_std(hdl, &thp7312_ctrl_ops, V4L2_CID_ROTATE, > + 0, 180, 180, 0); > + > + v4l2_ctrl_new_int_menu(hdl, &thp7312_ctrl_ops, > + V4L2_CID_AUTO_EXPOSURE_BIAS, > + ARRAY_SIZE(exp_bias_qmenu) - 1, > + ARRAY_SIZE(exp_bias_qmenu) / 2, exp_bias_qmenu); > + > + v4l2_ctrl_new_std_menu(hdl, &thp7312_ctrl_ops, > + V4L2_CID_POWER_LINE_FREQUENCY, > + V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 0, > + V4L2_CID_POWER_LINE_FREQUENCY_50HZ); > + > + /* set properties from fwnode (e.g. rotation, orientation) */ > + ret = v4l2_fwnode_device_parse(dev, &props); > + if (ret) { > + dev_err(dev, "Failed to parse fwnode: %d\n", ret); > + goto error; > + } > + > + ret = v4l2_ctrl_new_fwnode_properties(hdl, &thp7312_ctrl_ops, &props); > + if (ret) { > + dev_err(dev, "Failed to create new v4l2 ctrl for fwnode properties: %d\n", ret); > + goto error; > + } > + > + for (i = 0; i < ARRAY_SIZE(thp7312_v4l2_ctrls_custom); i++) > + v4l2_ctrl_new_custom(hdl, &thp7312_v4l2_ctrls_custom[i], NULL); > + > + if (hdl->error) { > + dev_err(dev, "v4l2_ctrl_handler error\n"); > + ret = hdl->error; > + goto error; > + } > + > + v4l2_ctrl_handler_setup(hdl); > + > + return ret; > + > +error: > + v4l2_ctrl_handler_free(hdl); > + return ret; > +} > + > +static int thp7312_read_firmware_version(struct thp7312_isp_dev *isp_dev) > +{ > + int ret; > + > + ret = thp7312_read_reg(isp_dev, THP7312_REG_FIRMWARE_VERSION_1, > + &isp_dev->fw_major_version); > + if (ret < 0) > + return ret; > + > + return thp7312_read_reg(isp_dev, THP7312_REG_FIRMWARE_VERSION_2, > + &isp_dev->fw_minor_version); > +} > + > +static void thp7312_init_fmt(struct thp7312_isp_dev *isp_dev) > +{ > + struct v4l2_mbus_framefmt *fmt; > + > + /* > + * default init sequence initialize isp_dev to > + * YUV422 YUYV VGA@30fps > + */ > + fmt = &isp_dev->fmt; > + fmt->code = MEDIA_BUS_FMT_YUYV8_1X16; > + fmt->colorspace = V4L2_COLORSPACE_SRGB; > + fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace); > + fmt->quantization = V4L2_QUANTIZATION_FULL_RANGE; > + fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace); > + fmt->width = 1920; > + fmt->height = 1080; > + fmt->field = V4L2_FIELD_NONE; > + isp_dev->frame_interval.numerator = 1; > + isp_dev->frame_interval.denominator = thp7312_framerates[THP7312_30_FPS]; > + isp_dev->current_fr = THP7312_30_FPS; > + > + isp_dev->active_mode = &thp7312_mode_info_data[0]; > +} > + > +static int thp7312_parse_dt(struct thp7312_isp_dev *isp_dev) > +{ > + struct fwnode_handle *endpoint; > + struct device *dev = &isp_dev->i2c_client->dev; > + int ret; > + > + endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL); > + if (!endpoint) { > + dev_err(dev, "endpoint node not found\n"); > + return -EINVAL; > + } > + > + ret = v4l2_fwnode_endpoint_parse(endpoint, &isp_dev->ep); > + fwnode_handle_put(endpoint); > + if (ret) { > + dev_err(dev, "Could not parse endpoint\n"); > + return ret; > + } > + > + if (isp_dev->ep.bus_type != V4L2_MBUS_CSI2_DPHY) { > + dev_err(dev, "Unsupported bus type %d\n", isp_dev->ep.bus_type); > + return -EINVAL; > + } > + > + return 0; > +} > + > +static int thp7312_probe(struct i2c_client *client) > +{ > + struct device *dev = &client->dev; > + struct thp7312_isp_dev *isp_dev; > + int ret; > + > + dev_info(dev, "Start of probe %s:%d", __func__, __LINE__); > + isp_dev = devm_kzalloc(dev, sizeof(*isp_dev), GFP_KERNEL); > + if (!isp_dev) > + return -ENOMEM; > + isp_dev->i2c_client = client; > + > + thp7312_init_fmt(isp_dev); > + > + isp_dev->current_mode = > + (struct thp7312_mode_info *)thp7312_find_mode(isp_dev, > + isp_dev->current_fr, > + isp_dev->fmt.width, > + isp_dev->fmt.height, > + true); > + > + /* TODO fix firmware */ > + /* update mode hardcoded at 0 for now */ > + isp_dev->fw_update_mode = 0; > + isp_dev->fw_major_version = 0; > + isp_dev->fw_minor_version = 0; > + isp_dev->thp7312_register_rw_address = 61440; > + > + ret = thp7312_parse_dt(isp_dev); > + if (ret < 0) { > + dev_err(dev, "Failed to parse DT: %d\n", ret); > + return ret; > + } > + > + ret = thp7312_get_regulators(isp_dev); > + if (ret) { > + dev_err(dev, "Failed to get regulators: %d\n", ret); > + return ret; > + } > + > + isp_dev->iclk = devm_clk_get(dev, NULL); > + if (IS_ERR(isp_dev->iclk)) { > + dev_err(dev, "Failed to get iclk\n"); > + return PTR_ERR(isp_dev->iclk); > + } > + > + /* request reset pin */ > + isp_dev->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); > + if (IS_ERR(isp_dev->reset_gpio)) { > + dev_err(dev, "Failed to get reset gpio\n"); > + return PTR_ERR(isp_dev->reset_gpio); > + } > + > + v4l2_i2c_subdev_init(&isp_dev->sd, client, &thp7312_subdev_ops); > + isp_dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; > + isp_dev->pad.flags = MEDIA_PAD_FL_SOURCE; > + isp_dev->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; > + > + mutex_init(&isp_dev->lock); > + > + ret = media_entity_pads_init(&isp_dev->sd.entity, 1, &isp_dev->pad); > + if (ret) > + goto mutex_destroy; > + > + ret = thp7312_set_power_on(dev); > + if (ret) > + goto entity_cleanup; > + > + ret = thp7312_read_firmware_version(isp_dev); > + if (ret < 0) { > + dev_warn(dev, "Camera is not found\n"); > + goto power_off; > + } > + > + dev_info(dev, "THP7312 firmware version = %02d.%02d", > + isp_dev->fw_major_version, isp_dev->fw_minor_version); > + > + ret = thp7312_init_controls(isp_dev); > + if (ret) > + goto power_off; > + > + isp_dev->sd.ctrl_handler = &isp_dev->ctrl_handler; > + > + ret = v4l2_async_register_subdev(&isp_dev->sd); > + if (ret < 0) { > + dev_err(dev, "Subdev registeration failed"); > + goto free_ctrls; > + } > + > + pm_runtime_set_active(dev); > + pm_runtime_enable(dev); > + > + dev_info(dev, "v4l2 async register subdev done"); > + > + return 0; > + > +free_ctrls: > + v4l2_ctrl_handler_free(&isp_dev->ctrl_handler); > +power_off: > + thp7312_set_power_off(dev); > +entity_cleanup: > + media_entity_cleanup(&isp_dev->sd.entity); > +mutex_destroy: > + mutex_destroy(&isp_dev->lock); > + return ret; > +} > + > +static void thp7312_remove(struct i2c_client *client) > +{ > + struct v4l2_subdev *sd = i2c_get_clientdata(client); > + struct thp7312_isp_dev *isp_dev = to_thp7312_dev(sd); > + > + v4l2_async_unregister_subdev(&isp_dev->sd); > + v4l2_ctrl_handler_free(&isp_dev->ctrl_handler); > + media_entity_cleanup(&isp_dev->sd.entity); > + v4l2_device_unregister_subdev(sd); > + pm_runtime_disable(&client->dev); > + mutex_destroy(&isp_dev->lock); > +} > + > +static const struct i2c_device_id thp7312_id[] = { > + {"thp7312", 0}, > + {}, > +}; > +MODULE_DEVICE_TABLE(i2c, thp7312_id); > + > +static const struct of_device_id thp7312_dt_ids[] = { > + { .compatible = "thine,thp7312" }, > + { /* sentinel */ } > +}; > +MODULE_DEVICE_TABLE(of, thp7312_dt_ids); > + > +static const struct dev_pm_ops thp7312_pm_ops = { > + SET_RUNTIME_PM_OPS(thp7312_set_power_off, thp7312_set_power_on, NULL) > +}; > + > +static struct i2c_driver thp7312_i2c_driver = { > + .driver = { > + .name = "thp7312", > + .of_match_table = thp7312_dt_ids, > + }, > + .id_table = thp7312_id, > + .probe_new = thp7312_probe, > + .remove = thp7312_remove, > +}; > + > +module_i2c_driver(thp7312_i2c_driver); > + > +MODULE_DESCRIPTION("THP7312 MIPI Camera Subdev Driver"); > +MODULE_LICENSE("GPL"); > -- > 2.39.2 >
