From patchwork Tue Sep 5 23:31:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Elder X-Patchwork-Id: 13375184 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D7123CCF9E9 for ; Tue, 5 Sep 2023 23:32:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237692AbjIEXcP (ORCPT ); Tue, 5 Sep 2023 19:32:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42654 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231478AbjIEXcO (ORCPT ); Tue, 5 Sep 2023 19:32:14 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 43498E48; Tue, 5 Sep 2023 16:31:49 -0700 (PDT) Received: from pyrite.hamster-moth.ts.net (h175-177-042-159.catv02.itscom.jp [175.177.42.159]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 3F1B7162B; Wed, 6 Sep 2023 01:30:17 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1693956621; bh=pureZbeJJcPO3fyhSmlOqvzaXtOldcfEIN39wHlDMqY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZkAvXlEffFYpOZlHZxkr3A1YqGlqtE2VSrt9O3V0O3wAX/rmSbzcdxwb2bH2xupSG MRgEibMxyiPdqTVRbndltQ/sIyU0ocXoTFyWuVt8YgYw4PzJERuBxV8J0yD4TBHTy1 SBWVRhPRUta7bdupYYE+85QFxip3uAiew6RfZpqY= From: Paul Elder To: linux-media@vger.kernel.org Cc: Paul Elder , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Laurent Pinchart , Hans Verkuil , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/3] media: i2c: Add driver for THine THP7312 Date: Wed, 6 Sep 2023 08:31:17 +0900 Message-Id: <20230905233118.183140-3-paul.elder@ideasonboard.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230905233118.183140-1-paul.elder@ideasonboard.com> References: <20230905233118.183140-1-paul.elder@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add driver for the THine THP7312 ISP. Signed-off-by: Paul Elder --- 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#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 + +#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");