From patchwork Tue Oct 25 02:27:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shawnx Tu X-Patchwork-Id: 618568 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 7CC9EC67871 for ; Tue, 25 Oct 2022 02:27:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229506AbiJYC1T (ORCPT ); Mon, 24 Oct 2022 22:27:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33982 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230139AbiJYC1S (ORCPT ); Mon, 24 Oct 2022 22:27:18 -0400 Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A92F8D73E1 for ; Mon, 24 Oct 2022 19:27:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1666664834; x=1698200834; h=from:to:cc:subject:date:message-id; bh=49acEuozxqnYosrs1zJUl8CQH5e9GcqXT21CvfUfUl4=; b=FpJsM2Qj/UyjWr3qQVxbw8pQa7b+qmn9R1sRzHWmP6f6eUX+RuUtJdXQ +tL9yox7YylnowPq+Cs7efMfCmWrJKaRrFE+hW+RAjPwOZOYQUysDX2d1 T+1kh+lG5EBCTZQA7WAy52eeXmdolJKkmNQheUsY6TnJScYG1Ndku+ugS nOvwpAUIYSpBPuJtsX7V3n0jfb6f1Zf4Ow+EL/X5R6wZ0NiRUF52zK7sl TB4tEqnxHK2j8cEUXcACN9JLEBF9EPiKKEhvFlJtPOWeiVA2qp2ZngJ5A Bnj5ky8fQ2q6+MZtejD38HX+TZZUmoQ3QRf380CGUzZXQBXjvw/WyMrO+ Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10510"; a="290871816" X-IronPort-AV: E=Sophos;i="5.95,210,1661842800"; d="scan'208";a="290871816" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Oct 2022 19:27:13 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10510"; a="694781779" X-IronPort-AV: E=Sophos;i="5.95,210,1661842800"; d="scan'208";a="694781779" Received: from server-intel-chrome-camera.itwn.intel.com ([10.5.253.223]) by fmsmga008.fm.intel.com with ESMTP; 24 Oct 2022 19:27:11 -0700 From: Shawnx Tu To: linux-media@vger.kernel.org Cc: andy.yeh@intel.com, shawnx.tu@intel.com, jason.z.chen@intel.com, sakari.ailus@linux.intel.com Subject: [PATCH v1] media: i2c: Add ov08x40 image sensor driver Date: Tue, 25 Oct 2022 10:27:38 +0800 Message-Id: <20221025022738.8846-1-shawnx.tu@intel.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Shawn Tu Add a V4L2 sub-device driver for Omnivision ov08X40 image sensor. This is a camera sensor using the I2C bus for control and the CSI-2 bus for data. This driver supports following features: - manual exposure and analog/digital gain control support - vblank/hblank control support - test pattern support - media controller support - runtime PM support - support following resolutions: + 3856x2464 at 30FPS + 1928x1208 at 30FPS Signed-off-by: Jason Chen Signed-off-by: Shawn Tu --- MAINTAINERS | 7 + drivers/media/i2c/Kconfig | 13 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/ov08x40.c | 3327 +++++++++++++++++++++++++++++++++++ 4 files changed, 3348 insertions(+) create mode 100644 drivers/media/i2c/ov08x40.c diff --git a/MAINTAINERS b/MAINTAINERS index a58f1fc6dd47..a74920a62f23 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14990,6 +14990,13 @@ S: Maintained T: git git://linuxtv.org/media_tree.git F: drivers/media/i2c/ov08d10.c +OMNIVISION OV08X40 SENSOR DRIVER +M: Jason Chen +L: linux-media@vger.kernel.org +S: Maintained +T: git git://linuxtv.org/media_tree.git +F: drivers/media/i2c/ov08x40.c + OMNIVISION OV13858 SENSOR DRIVER M: Sakari Ailus L: linux-media@vger.kernel.org diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 7806d4b81716..8d749c01df70 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -364,6 +364,19 @@ config VIDEO_OV08D10 To compile this driver as a module, choose M here: the module will be called ov08d10. +config VIDEO_OV08X40 + tristate "OmniVision OV08X40 sensor support" + depends on VIDEO_V4L2 && I2C + select MEDIA_CONTROLLER + select VIDEO_V4L2_SUBDEV_API + select V4L2_FWNODE + help + This is a Video4Linux2 sensor driver for the OmniVision + OV08X40 camera. + + To compile this driver as a module, choose M here: the + module will be called ov08x40. + config VIDEO_OV13858 tristate "OmniVision OV13858 sensor support" depends on I2C && VIDEO_DEV diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index 0a2933103dd9..83be451ef326 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -72,6 +72,7 @@ obj-$(CONFIG_VIDEO_NOON010PC30) += noon010pc30.o obj-$(CONFIG_VIDEO_OG01A1B) += og01a1b.o obj-$(CONFIG_VIDEO_OV02A10) += ov02a10.o obj-$(CONFIG_VIDEO_OV08D10) += ov08d10.o +obj-$(CONFIG_VIDEO_OV08X40) += ov08x40.o obj-$(CONFIG_VIDEO_OV13858) += ov13858.o obj-$(CONFIG_VIDEO_OV13B10) += ov13b10.o obj-$(CONFIG_VIDEO_OV2640) += ov2640.o diff --git a/drivers/media/i2c/ov08x40.c b/drivers/media/i2c/ov08x40.c new file mode 100644 index 000000000000..b4ade17a83f5 --- /dev/null +++ b/drivers/media/i2c/ov08x40.c @@ -0,0 +1,3327 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2022 Intel Corporation. + +#include +#include +#include +#include +#include +#include +#include +#include + +#define OV08X40_REG_VALUE_08BIT 1 +#define OV08X40_REG_VALUE_16BIT 2 +#define OV08X40_REG_VALUE_24BIT 3 + +#define OV08X40_REG_MODE_SELECT 0x0100 +#define OV08X40_MODE_STANDBY 0x00 +#define OV08X40_MODE_STREAMING 0x01 + +#define OV08X40_REG_AO_STANDBY 0x1000 +#define OV08X40_AO_STREAMING 0x04 + +#define OV08X40_REG_MS_SELECT 0x1001 +#define OV08X40_MS_STANDBY 0x00 +#define OV08X40_MS_STREAMING 0x04 + +#define OV08X40_REG_SOFTWARE_RST 0x0103 +#define OV08X40_SOFTWARE_RST 0x01 + +/* Chip ID */ +#define OV08X40_REG_CHIP_ID 0x300a +#define OV08X40_CHIP_ID 0x560858 + +/* V_TIMING internal */ +#define OV08X40_REG_VTS 0x380e +#define OV08X40_VTS_30FPS 0x1388 +#define OV08X40_VTS_BIN_30FPS 0x115c +#define OV08X40_VTS_MAX 0x7fff + +/* H TIMING internal */ +#define OV08X40_REG_HTS 0x380c +#define OV08X40_HTS_30FPS 0x0280 + +/* Exposure control */ +#define OV08X40_REG_EXPOSURE 0x3500 +#define OV08X40_EXPOSURE_MAX_MARGIN 31 +#define OV08X40_EXPOSURE_MIN 1 +#define OV08X40_EXPOSURE_STEP 1 +#define OV08X40_EXPOSURE_DEFAULT 0x40 + +/* Short Exposure control */ +#define OV08X40_REG_SHORT_EXPOSURE 0x3540 + +/* Analog gain control */ +#define OV08X40_REG_ANALOG_GAIN 0x3508 +#define OV08X40_ANA_GAIN_MIN 0x80 +#define OV08X40_ANA_GAIN_MAX 0x07c0 +#define OV08X40_ANA_GAIN_STEP 1 +#define OV08X40_ANA_GAIN_DEFAULT 0x80 + +/* Digital gain control */ +#define OV08X40_REG_DGTL_GAIN_H 0x350a +#define OV08X40_REG_DGTL_GAIN_M 0x350b +#define OV08X40_REG_DGTL_GAIN_L 0x350c + +#define OV08X40_DGTL_GAIN_MIN 1024 /* Min = 1 X */ +#define OV08X40_DGTL_GAIN_MAX (4096 - 1) /* Max = 4 X */ +#define OV08X40_DGTL_GAIN_DEFAULT 2560 /* Default gain = 2.5 X */ +#define OV08X40_DGTL_GAIN_STEP 1 /* Each step = 1/1024 */ + +#define OV08X40_DGTL_GAIN_L_SHIFT 6 +#define OV08X40_DGTL_GAIN_L_MASK 0x3 +#define OV08X40_DGTL_GAIN_M_SHIFT 2 +#define OV08X40_DGTL_GAIN_M_MASK 0xff +#define OV08X40_DGTL_GAIN_H_SHIFT 10 +#define OV08X40_DGTL_GAIN_H_MASK 0x1F + +/* Test Pattern Control */ +#define OV08X40_REG_TEST_PATTERN 0x50C1 +#define OV08X40_REG_ISP 0x5000 +#define OV08X40_REG_SHORT_TEST_PATTERN 0x53C1 +#define OV08X40_TEST_PATTERN_ENABLE BIT(0) +#define OV08X40_TEST_PATTERN_MASK 0xcf +#define OV08X40_TEST_PATTERN_BAR_SHIFT 4 + +/* Flip Control */ +#define OV08X40_REG_VFLIP 0x3820 +#define OV08X40_REG_MIRROR 0x3821 + +/* Horizontal Window Offset */ +#define OV08X40_REG_H_WIN_OFFSET 0x3811 + +/* Vertical Window Offset */ +#define OV08X40_REG_V_WIN_OFFSET 0x3813 + +enum { + OV08X40_LINK_FREQ_400MHZ_INDEX, +}; + +struct ov08x40_reg { + u16 address; + u8 val; +}; + +struct ov08x40_reg_list { + u32 num_of_regs; + const struct ov08x40_reg *regs; +}; + +/* Link frequency config */ +struct ov08x40_link_freq_config { + u32 pixels_per_line; + + /* registers for this link frequency */ + struct ov08x40_reg_list reg_list; +}; + +/* Mode : resolution and related config&values */ +struct ov08x40_mode { + /* Frame width */ + u32 width; + /* Frame height */ + u32 height; + + u32 lanes; + /* V-timing */ + u32 vts_def; + u32 vts_min; + + /* Index of Link frequency config to be used */ + u32 link_freq_index; + /* Default register values */ + struct ov08x40_reg_list reg_list; +}; + +static const struct ov08x40_reg mipi_data_rate_800mbps[] = { + {0x0103, 0x01}, + {0x1000, 0x00}, + {0x1601, 0xd0}, + {0x1001, 0x04}, + {0x5004, 0x53}, + {0x5110, 0x00}, + {0x5111, 0x14}, + {0x5112, 0x01}, + {0x5113, 0x7b}, + {0x5114, 0x00}, + {0x5152, 0xa3}, + {0x5a52, 0x1f}, + {0x5a1a, 0x0e}, + {0x5a1b, 0x10}, + {0x5a1f, 0x0e}, + {0x5a27, 0x0e}, + {0x6002, 0x2e}, +}; + +static const struct ov08x40_reg mode_3856x2416_regs[] = { + {0x5000, 0x5d}, + {0x5001, 0x20}, + {0x5008, 0xb0}, + {0x50c1, 0x00}, + {0x53c1, 0x00}, + {0x5f40, 0x00}, + {0x5f41, 0x40}, + {0x0300, 0x3a}, + {0x0301, 0xc8}, + {0x0302, 0x31}, + {0x0303, 0x03}, + {0x0304, 0x01}, + {0x0305, 0xa1}, + {0x0306, 0x04}, + {0x0307, 0x01}, + {0x0308, 0x03}, + {0x0309, 0x03}, + {0x0310, 0x0a}, + {0x0311, 0x02}, + {0x0312, 0x01}, + {0x0313, 0x08}, + {0x0314, 0x66}, + {0x0315, 0x00}, + {0x0316, 0x34}, + {0x0320, 0x02}, + {0x0321, 0x03}, + {0x0323, 0x05}, + {0x0324, 0x01}, + {0x0325, 0xb8}, + {0x0326, 0x4a}, + {0x0327, 0x04}, + {0x0329, 0x00}, + {0x032a, 0x05}, + {0x032b, 0x00}, + {0x032c, 0x00}, + {0x032d, 0x00}, + {0x032e, 0x02}, + {0x032f, 0xa0}, + {0x0350, 0x00}, + {0x0360, 0x01}, + {0x1216, 0x60}, + {0x1217, 0x5b}, + {0x1218, 0x00}, + {0x1220, 0x24}, + {0x198a, 0x00}, + {0x198b, 0x01}, + {0x198e, 0x00}, + {0x198f, 0x01}, + {0x3009, 0x04}, + {0x3012, 0x41}, + {0x3015, 0x00}, + {0x3016, 0xb0}, + {0x3017, 0xf0}, + {0x3018, 0xf0}, + {0x3019, 0xd2}, + {0x301a, 0xb0}, + {0x301c, 0x81}, + {0x301d, 0x02}, + {0x301e, 0x80}, + {0x3022, 0xf0}, + {0x3025, 0x89}, + {0x3030, 0x03}, + {0x3044, 0xc2}, + {0x3050, 0x35}, + {0x3051, 0x60}, + {0x3052, 0x25}, + {0x3053, 0x00}, + {0x3054, 0x00}, + {0x3055, 0x02}, + {0x3056, 0x80}, + {0x3057, 0x80}, + {0x3058, 0x80}, + {0x3059, 0x00}, + {0x3107, 0x86}, + {0x3400, 0x1c}, + {0x3401, 0x80}, + {0x3402, 0x8c}, + {0x3419, 0x13}, + {0x341a, 0x89}, + {0x341b, 0x30}, + {0x3420, 0x00}, + {0x3421, 0x00}, + {0x3422, 0x00}, + {0x3423, 0x00}, + {0x3424, 0x00}, + {0x3425, 0x00}, + {0x3426, 0x00}, + {0x3427, 0x00}, + {0x3428, 0x0f}, + {0x3429, 0x00}, + {0x342a, 0x00}, + {0x342b, 0x00}, + {0x342c, 0x00}, + {0x342d, 0x00}, + {0x342e, 0x00}, + {0x342f, 0x11}, + {0x3430, 0x11}, + {0x3431, 0x10}, + {0x3432, 0x00}, + {0x3433, 0x00}, + {0x3434, 0x00}, + {0x3435, 0x00}, + {0x3436, 0x00}, + {0x3437, 0x00}, + {0x3442, 0x02}, + {0x3443, 0x02}, + {0x3444, 0x07}, + {0x3450, 0x00}, + {0x3451, 0x00}, + {0x3452, 0x18}, + {0x3453, 0x18}, + {0x3454, 0x00}, + {0x3455, 0x80}, + {0x3456, 0x08}, + {0x3500, 0x00}, + {0x3501, 0x02}, + {0x3502, 0x00}, + {0x3504, 0x4c}, + {0x3506, 0x30}, + {0x3507, 0x00}, + {0x3508, 0x01}, + {0x3509, 0x00}, + {0x350a, 0x01}, + {0x350b, 0x00}, + {0x350c, 0x00}, + {0x3540, 0x00}, + {0x3541, 0x01}, + {0x3542, 0x00}, + {0x3544, 0x4c}, + {0x3546, 0x30}, + {0x3547, 0x00}, + {0x3548, 0x01}, + {0x3549, 0x00}, + {0x354a, 0x01}, + {0x354b, 0x00}, + {0x354c, 0x00}, + {0x3688, 0x02}, + {0x368a, 0x2e}, + {0x368e, 0x71}, + {0x3696, 0xd1}, + {0x3699, 0x00}, + {0x369a, 0x00}, + {0x36a4, 0x00}, + {0x36a6, 0x00}, + {0x3711, 0x00}, + {0x3712, 0x51}, + {0x3713, 0x00}, + {0x3714, 0x24}, + {0x3716, 0x00}, + {0x3718, 0x07}, + {0x371a, 0x1c}, + {0x371b, 0x00}, + {0x3720, 0x08}, + {0x3725, 0x32}, + {0x3727, 0x05}, + {0x3760, 0x02}, + {0x3761, 0x17}, + {0x3762, 0x02}, + {0x3763, 0x02}, + {0x3764, 0x02}, + {0x3765, 0x2c}, + {0x3766, 0x04}, + {0x3767, 0x2c}, + {0x3768, 0x02}, + {0x3769, 0x00}, + {0x376b, 0x20}, + {0x376e, 0x03}, + {0x37b0, 0x00}, + {0x37b1, 0xab}, + {0x37b2, 0x01}, + {0x37b3, 0x82}, + {0x37b4, 0x00}, + {0x37b5, 0xe4}, + {0x37b6, 0x01}, + {0x37b7, 0xee}, + {0x3800, 0x00}, + {0x3801, 0x00}, + {0x3802, 0x00}, + {0x3803, 0x00}, + {0x3804, 0x0f}, + {0x3805, 0x1f}, + {0x3806, 0x09}, + {0x3807, 0x7f}, + {0x3808, 0x0f}, + {0x3809, 0x10}, + {0x380a, 0x09}, + {0x380b, 0x70}, + {0x380c, 0x02}, + {0x380d, 0x80}, + {0x380e, 0x13}, + {0x380f, 0x88}, + {0x3810, 0x00}, + {0x3811, 0x08}, + {0x3812, 0x00}, + {0x3813, 0x07}, + {0x3814, 0x11}, + {0x3815, 0x11}, + {0x3820, 0x00}, + {0x3821, 0x04}, + {0x3822, 0x00}, + {0x3823, 0x04}, + {0x3828, 0x0f}, + {0x382a, 0x80}, + {0x382e, 0x41}, + {0x3837, 0x08}, + {0x383a, 0x81}, + {0x383b, 0x81}, + {0x383c, 0x11}, + {0x383d, 0x11}, + {0x383e, 0x00}, + {0x383f, 0x38}, + {0x3840, 0x00}, + {0x3847, 0x00}, + {0x384a, 0x00}, + {0x384c, 0x02}, + {0x384d, 0x80}, + {0x3856, 0x50}, + {0x3857, 0x30}, + {0x3858, 0x80}, + {0x3859, 0x40}, + {0x3860, 0x00}, + {0x3888, 0x00}, + {0x3889, 0x00}, + {0x388a, 0x00}, + {0x388b, 0x00}, + {0x388c, 0x00}, + {0x388d, 0x00}, + {0x388e, 0x00}, + {0x388f, 0x00}, + {0x3894, 0x00}, + {0x3895, 0x00}, + {0x3c84, 0x00}, + {0x3d85, 0x8b}, + {0x3daa, 0x80}, + {0x3dab, 0x14}, + {0x3dac, 0x80}, + {0x3dad, 0xc8}, + {0x3dae, 0x81}, + {0x3daf, 0x7b}, + {0x3f00, 0x10}, + {0x3f01, 0x11}, + {0x3f06, 0x0d}, + {0x3f07, 0x0b}, + {0x3f08, 0x0d}, + {0x3f09, 0x0b}, + {0x3f0a, 0x01}, + {0x3f0b, 0x11}, + {0x3f0c, 0x33}, + {0x4001, 0x07}, + {0x4007, 0x20}, + {0x4008, 0x00}, + {0x4009, 0x05}, + {0x400a, 0x00}, + {0x400b, 0x08}, + {0x400c, 0x00}, + {0x400d, 0x08}, + {0x400e, 0x14}, + {0x4010, 0xf4}, + {0x4011, 0x03}, + {0x4012, 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0x75}, + {0x5e6c, 0x75}, + {0x5e6d, 0x75}, + {0x5e6e, 0x75}, + {0x5e6f, 0x75}, + {0x5e70, 0x75}, + {0x5e71, 0x75}, + {0x5e72, 0x75}, + {0x5e73, 0x75}, + {0x5e74, 0x75}, + {0x5e75, 0x75}, + {0x5e76, 0x75}, + {0x5e77, 0x75}, + {0x5e78, 0x75}, + {0x5e79, 0x75}, + {0x5e7a, 0x75}, + {0x5e7b, 0x75}, + {0x5e7c, 0x75}, + {0x5e7d, 0x75}, + {0x5e7e, 0x75}, + {0x5e7f, 0x75}, + {0x5e80, 0x75}, + {0x5e81, 0x75}, + {0x5e82, 0x75}, + {0x5e83, 0x75}, + {0x5e84, 0x75}, + {0x5e85, 0x75}, + {0x5e86, 0x75}, + {0x5e87, 0x75}, + {0x5e88, 0x75}, + {0x5e89, 0x75}, + {0x5e8a, 0x75}, + {0x5e8b, 0x75}, + {0x5e8c, 0x75}, + {0x5e8d, 0x75}, + {0x5e8e, 0x75}, + {0x5e8f, 0x75}, + {0x5e90, 0x75}, + {0x5e91, 0x75}, + {0x5e92, 0x75}, + {0x5e93, 0x75}, + {0x5e94, 0x75}, + {0x5e95, 0x75}, + {0x5e96, 0x75}, + {0x5e97, 0x75}, + {0x5e98, 0x75}, + {0x5e99, 0x75}, + {0x5e9a, 0x75}, + {0x5e9b, 0x75}, + {0x5e9c, 0x75}, + {0x5e9d, 0x75}, + {0x5e9e, 0x75}, + {0x5e9f, 0x75}, + {0x5ea0, 0x75}, + {0x5ea1, 0x75}, + {0x5ea2, 0x75}, + {0x5ea3, 0x75}, + {0x5ea4, 0x75}, + {0x5ea5, 0x75}, + {0x5ea6, 0x75}, + {0x5ea7, 0x75}, + {0x5ea8, 0x75}, + {0x5ea9, 0x75}, + {0x5eaa, 0x75}, + {0x5eab, 0x75}, + {0x5eac, 0x75}, + {0x5ead, 0x75}, + {0x5eae, 0x75}, + {0x5eaf, 0x75}, + {0x5eb0, 0x75}, + {0x5eb1, 0x75}, + {0x5eb2, 0x75}, + {0x5eb3, 0x75}, + {0x5eb4, 0x75}, + {0x5eb5, 0x75}, + {0x5eb6, 0x75}, + {0x5eb7, 0x75}, + {0x5eb8, 0x75}, + {0x5eb9, 0x75}, + {0x5eba, 0x75}, + {0x5ebb, 0x75}, + {0x5ebc, 0x75}, + {0x5ebd, 0x75}, + {0x5ebe, 0x75}, + {0x5ebf, 0x75}, + {0x5ec0, 0x75}, + {0x5ec1, 0x75}, + {0x5ec2, 0x75}, + {0x5ec3, 0x75}, + {0x5ec4, 0x75}, + {0x5ec5, 0x75}, + {0x5ec6, 0x75}, + {0x5ec7, 0x75}, + {0x5ec8, 0x75}, + {0x5ec9, 0x75}, + {0x5eca, 0x75}, + {0x5ecb, 0x75}, + {0x5ecc, 0x75}, + {0x5ecd, 0x75}, + {0x5ece, 0x75}, + {0x5ecf, 0x75}, + {0x5ed0, 0x75}, + {0x5ed1, 0x75}, + {0x5ed2, 0x75}, + {0x5ed3, 0x75}, + {0x5ed4, 0x75}, + {0x5ed5, 0x75}, + {0x5ed6, 0x75}, + {0x5ed7, 0x75}, + {0x5ed8, 0x75}, + {0x5ed9, 0x75}, + {0x5eda, 0x75}, + {0x5edb, 0x75}, + {0x5edc, 0x75}, + {0x5edd, 0x75}, + {0x5ede, 0x75}, + {0x5edf, 0x75}, + {0x5ee0, 0x75}, + {0x5ee1, 0x75}, + {0x5ee2, 0x75}, + {0x5ee3, 0x75}, + {0x5ee4, 0x75}, + {0x5ee5, 0x75}, + {0x5ee6, 0x75}, + {0x5ee7, 0x75}, + {0x5ee8, 0x75}, + {0x5ee9, 0x75}, + {0x5eea, 0x75}, + {0x5eeb, 0x75}, + {0x5eec, 0x75}, + {0x5eed, 0x75}, + {0x5eee, 0x75}, + {0x5eef, 0x75}, + {0x5ef0, 0x75}, + {0x5ef1, 0x75}, + {0x5ef2, 0x75}, + {0x5ef3, 0x75}, + {0x5ef4, 0x75}, + {0x5ef5, 0x75}, + {0x5ef6, 0x75}, + {0x5ef7, 0x75}, + {0x5ef8, 0x75}, + {0x5ef9, 0x75}, + {0x5efa, 0x75}, + {0x5efb, 0x75}, + {0x5efc, 0x75}, + {0x5efd, 0x75}, + {0x5efe, 0x75}, + {0x5eff, 0x75}, + {0x5f00, 0x75}, + {0x5f01, 0x75}, + {0x5f02, 0x75}, + {0x5f03, 0x75}, + {0x5f04, 0x75}, + {0x5f05, 0x75}, + {0x5f06, 0x75}, + {0x5f07, 0x75}, + {0x5f08, 0x75}, + {0x5f09, 0x75}, + {0x5f0a, 0x75}, + {0x5f0b, 0x75}, + {0x5f0c, 0x75}, + {0x5f0d, 0x75}, + {0x5f0e, 0x75}, + {0x5f0f, 0x75}, + {0x5f10, 0x75}, + {0x5f11, 0x75}, + {0x5f12, 0x75}, + {0x5f13, 0x75}, + {0x5f14, 0x75}, + {0x5f15, 0x75}, + {0x5f16, 0x75}, + {0x5f17, 0x75}, + {0x5f18, 0x75}, + {0x5f19, 0x75}, + {0x5f1a, 0x75}, + {0x5f1b, 0x75}, + {0x5f1c, 0x75}, + {0x5f1d, 0x75}, + {0x5f1e, 0x75}, + {0x5f1f, 0x75}, +}; + +static const struct ov08x40_reg mode_1928x1208_regs[] = { + {0x5000, 0x55}, + {0x5001, 0x00}, + {0x5008, 0xb0}, + {0x50c1, 0x00}, + {0x53c1, 0x00}, + {0x5f40, 0x00}, + {0x5f41, 0x40}, + {0x0300, 0x3a}, + {0x0301, 0xc8}, + {0x0302, 0x31}, + {0x0303, 0x03}, + {0x0304, 0x01}, + {0x0305, 0xa1}, + {0x0306, 0x04}, + {0x0307, 0x01}, + {0x0308, 0x03}, + {0x0309, 0x03}, + {0x0310, 0x0a}, + {0x0311, 0x02}, + {0x0312, 0x01}, + {0x0313, 0x08}, + {0x0314, 0x66}, + {0x0315, 0x00}, + {0x0316, 0x34}, + {0x0320, 0x02}, + {0x0321, 0x03}, + {0x0323, 0x05}, + {0x0324, 0x01}, + {0x0325, 0xb8}, + {0x0326, 0x4a}, + {0x0327, 0x04}, + {0x0329, 0x00}, + {0x032a, 0x05}, + {0x032b, 0x00}, + {0x032c, 0x00}, + {0x032d, 0x00}, + {0x032e, 0x02}, + {0x032f, 0xa0}, + {0x0350, 0x00}, + {0x0360, 0x01}, + {0x1216, 0x60}, + {0x1217, 0x5b}, + {0x1218, 0x00}, + {0x1220, 0x24}, + {0x198a, 0x00}, + {0x198b, 0x01}, + {0x198e, 0x00}, + {0x198f, 0x01}, + {0x3009, 0x04}, + {0x3012, 0x41}, + {0x3015, 0x00}, + {0x3016, 0xb0}, + {0x3017, 0xf0}, + {0x3018, 0xf0}, + {0x3019, 0xd2}, + {0x301a, 0xb0}, + {0x301c, 0x81}, + {0x301d, 0x02}, + {0x301e, 0x80}, + {0x3022, 0xf0}, + {0x3025, 0x89}, + {0x3030, 0x03}, + {0x3044, 0xc2}, + {0x3050, 0x35}, + {0x3051, 0x60}, + {0x3052, 0x25}, + {0x3053, 0x00}, + {0x3054, 0x00}, + {0x3055, 0x02}, + {0x3056, 0x80}, + {0x3057, 0x80}, + {0x3058, 0x80}, + {0x3059, 0x00}, + {0x3107, 0x86}, + {0x3400, 0x1c}, + {0x3401, 0x80}, + {0x3402, 0x8c}, + {0x3419, 0x08}, + {0x341a, 0xaf}, + {0x341b, 0x30}, + {0x3420, 0x00}, + {0x3421, 0x00}, + {0x3422, 0x00}, + {0x3423, 0x00}, + {0x3424, 0x00}, + {0x3425, 0x00}, + {0x3426, 0x00}, + {0x3427, 0x00}, + {0x3428, 0x0f}, + {0x3429, 0x00}, + {0x342a, 0x00}, + {0x342b, 0x00}, + {0x342c, 0x00}, + {0x342d, 0x00}, + {0x342e, 0x00}, + {0x342f, 0x11}, + {0x3430, 0x11}, + {0x3431, 0x10}, + {0x3432, 0x00}, + {0x3433, 0x00}, + {0x3434, 0x00}, + {0x3435, 0x00}, + {0x3436, 0x00}, + {0x3437, 0x00}, + {0x3442, 0x02}, + {0x3443, 0x02}, + {0x3444, 0x07}, + {0x3450, 0x00}, + {0x3451, 0x00}, + {0x3452, 0x18}, + {0x3453, 0x18}, + {0x3454, 0x00}, + {0x3455, 0x80}, + {0x3456, 0x08}, + {0x3500, 0x00}, + {0x3501, 0x02}, + {0x3502, 0x00}, + {0x3504, 0x4c}, + {0x3506, 0x30}, + {0x3507, 0x00}, + {0x3508, 0x01}, + {0x3509, 0x00}, + {0x350a, 0x01}, + {0x350b, 0x00}, + {0x350c, 0x00}, + {0x3540, 0x00}, + {0x3541, 0x01}, + {0x3542, 0x00}, + {0x3544, 0x4c}, + {0x3546, 0x30}, + {0x3547, 0x00}, + {0x3548, 0x01}, + {0x3549, 0x00}, + {0x354a, 0x01}, + {0x354b, 0x00}, + {0x354c, 0x00}, + {0x3688, 0x02}, + {0x368a, 0x2e}, + {0x368e, 0x71}, + {0x3696, 0xd1}, + {0x3699, 0x00}, + {0x369a, 0x00}, + {0x36a4, 0x00}, + {0x36a6, 0x00}, + {0x3711, 0x00}, + {0x3712, 0x50}, + {0x3713, 0x00}, + {0x3714, 0x21}, + {0x3716, 0x00}, + {0x3718, 0x07}, + {0x371a, 0x1c}, + {0x371b, 0x00}, + {0x3720, 0x08}, + {0x3725, 0x32}, + {0x3727, 0x05}, + {0x3760, 0x02}, + {0x3761, 0x28}, + {0x3762, 0x02}, + {0x3763, 0x02}, + {0x3764, 0x02}, + {0x3765, 0x2c}, + {0x3766, 0x04}, + {0x3767, 0x2c}, + {0x3768, 0x02}, + {0x3769, 0x00}, + {0x376b, 0x20}, + {0x376e, 0x07}, + {0x37b0, 0x01}, + {0x37b1, 0x0f}, + {0x37b2, 0x01}, + {0x37b3, 0xd6}, + {0x37b4, 0x01}, + {0x37b5, 0x48}, + {0x37b6, 0x02}, + {0x37b7, 0x40}, + {0x3800, 0x00}, + {0x3801, 0x00}, + {0x3802, 0x00}, + {0x3803, 0x00}, + {0x3804, 0x0f}, + {0x3805, 0x1f}, + {0x3806, 0x09}, + {0x3807, 0x7f}, + {0x3808, 0x07}, + {0x3809, 0x88}, + {0x380a, 0x04}, + {0x380b, 0xb8}, + {0x380c, 0x02}, + {0x380d, 0xd0}, + {0x380e, 0x11}, + {0x380f, 0x5c}, + {0x3810, 0x00}, + {0x3811, 0x04}, + {0x3812, 0x00}, + {0x3813, 0x03}, + {0x3814, 0x11}, + {0x3815, 0x11}, + {0x3820, 0x02}, + {0x3821, 0x14}, + {0x3822, 0x00}, + {0x3823, 0x04}, + {0x3828, 0x0f}, + {0x382a, 0x80}, + {0x382e, 0x41}, + {0x3837, 0x08}, + {0x383a, 0x81}, + {0x383b, 0x81}, + {0x383c, 0x11}, + {0x383d, 0x11}, + {0x383e, 0x00}, + {0x383f, 0x38}, + {0x3840, 0x00}, + {0x3847, 0x00}, + {0x384a, 0x00}, + {0x384c, 0x02}, + {0x384d, 0xd0}, + {0x3856, 0x50}, + {0x3857, 0x30}, + {0x3858, 0x80}, + {0x3859, 0x40}, + {0x3860, 0x00}, + {0x3888, 0x00}, + {0x3889, 0x00}, + {0x388a, 0x00}, + {0x388b, 0x00}, + {0x388c, 0x00}, + {0x388d, 0x00}, + {0x388e, 0x00}, + {0x388f, 0x00}, + {0x3894, 0x00}, + {0x3895, 0x00}, + {0x3c84, 0x00}, + {0x3d85, 0x8b}, + {0x3daa, 0x80}, + {0x3dab, 0x14}, + {0x3dac, 0x80}, + {0x3dad, 0xc8}, + {0x3dae, 0x81}, + {0x3daf, 0x7b}, + {0x3f00, 0x10}, + {0x3f01, 0x11}, + {0x3f06, 0x0d}, + {0x3f07, 0x0b}, + {0x3f08, 0x0d}, + {0x3f09, 0x0b}, + {0x3f0a, 0x01}, + {0x3f0b, 0x11}, + {0x3f0c, 0x33}, + {0x4001, 0x07}, + {0x4007, 0x20}, + {0x4008, 0x00}, + {0x4009, 0x05}, + {0x400a, 0x00}, + {0x400b, 0x04}, + {0x400c, 0x00}, + {0x400d, 0x04}, + {0x400e, 0x14}, + {0x4010, 0xf4}, + {0x4011, 0x03}, + {0x4012, 0x55}, + {0x4015, 0x00}, + {0x4016, 0x27}, + {0x4017, 0x00}, + {0x4018, 0x0f}, + {0x401b, 0x08}, + {0x401c, 0x00}, + {0x401d, 0x10}, + {0x401e, 0x02}, + {0x401f, 0x00}, + {0x4050, 0x06}, + {0x4051, 0xff}, + {0x4052, 0xff}, + {0x4053, 0xff}, + {0x4054, 0xff}, + {0x4055, 0xff}, + {0x4056, 0xff}, + {0x4057, 0x7f}, + {0x4058, 0x00}, + {0x4059, 0x00}, + {0x405a, 0x00}, + {0x405b, 0x00}, + {0x405c, 0x07}, + {0x405d, 0xff}, + {0x405e, 0x07}, + {0x405f, 0xff}, + {0x4080, 0x78}, + {0x4081, 0x78}, + {0x4082, 0x78}, + {0x4083, 0x78}, + {0x4019, 0x00}, + {0x401a, 0x40}, + {0x4020, 0x04}, + {0x4021, 0x00}, + {0x4022, 0x04}, + {0x4023, 0x00}, + {0x4024, 0x04}, + {0x4025, 0x00}, + {0x4026, 0x04}, + {0x4027, 0x00}, + {0x4030, 0x00}, + {0x4031, 0x00}, + {0x4032, 0x00}, + {0x4033, 0x00}, + {0x4034, 0x00}, + {0x4035, 0x00}, + {0x4036, 0x00}, + {0x4037, 0x00}, + {0x4040, 0x00}, + {0x4041, 0x80}, + {0x4042, 0x00}, + {0x4043, 0x80}, + {0x4044, 0x00}, + {0x4045, 0x80}, + {0x4046, 0x00}, + {0x4047, 0x80}, + {0x4060, 0x00}, + {0x4061, 0x00}, + {0x4062, 0x00}, + {0x4063, 0x00}, + {0x4064, 0x00}, + {0x4065, 0x00}, + {0x4066, 0x00}, + {0x4067, 0x00}, + {0x4068, 0x00}, + {0x4069, 0x00}, + {0x406a, 0x00}, + {0x406b, 0x00}, + {0x406c, 0x00}, + {0x406d, 0x00}, + {0x406e, 0x00}, + {0x406f, 0x00}, + {0x4070, 0x00}, + {0x4071, 0x00}, + {0x4072, 0x00}, + {0x4073, 0x00}, + {0x4074, 0x00}, + {0x4075, 0x00}, + {0x4076, 0x00}, + {0x4077, 0x00}, + {0x4078, 0x00}, + {0x4079, 0x00}, + {0x407a, 0x00}, + {0x407b, 0x00}, + {0x407c, 0x00}, + {0x407d, 0x00}, + {0x407e, 0x00}, + {0x407f, 0x00}, + {0x40e0, 0x00}, + {0x40e1, 0x00}, + {0x40e2, 0x00}, + {0x40e3, 0x00}, + {0x40e4, 0x00}, + {0x40e5, 0x00}, + {0x40e6, 0x00}, + {0x40e7, 0x00}, + {0x40e8, 0x00}, + {0x40e9, 0x80}, + {0x40ea, 0x00}, + {0x40eb, 0x80}, + {0x40ec, 0x00}, + {0x40ed, 0x80}, + {0x40ee, 0x00}, + {0x40ef, 0x80}, + {0x40f0, 0x02}, + {0x40f1, 0x04}, + {0x4300, 0x00}, + {0x4301, 0x00}, + {0x4302, 0x00}, + {0x4303, 0x00}, + {0x4304, 0x00}, + {0x4305, 0x00}, + {0x4306, 0x00}, + {0x4307, 0x00}, + {0x4308, 0x00}, + {0x4309, 0x00}, + {0x430a, 0x00}, + {0x430b, 0xff}, + {0x430c, 0xff}, + {0x430d, 0x00}, + {0x430e, 0x00}, + {0x4315, 0x00}, + {0x4316, 0x00}, + {0x4317, 0x00}, + {0x4318, 0x00}, + {0x4319, 0x00}, + {0x431a, 0x00}, + {0x431b, 0x00}, + {0x431c, 0x00}, + {0x4500, 0x07}, + {0x4501, 0x10}, + {0x4502, 0x00}, + {0x4503, 0x0f}, + {0x4504, 0x80}, + {0x4506, 0x01}, + {0x4509, 0x05}, + {0x450c, 0x00}, + {0x450d, 0x20}, + {0x450e, 0x00}, + {0x450f, 0x00}, + {0x4510, 0x00}, + {0x4523, 0x00}, + {0x4526, 0x00}, + {0x4542, 0x00}, + {0x4543, 0x00}, + {0x4544, 0x00}, + {0x4545, 0x00}, + {0x4546, 0x00}, + {0x4547, 0x10}, + {0x4602, 0x00}, + {0x4603, 0x15}, + {0x460b, 0x07}, + {0x4680, 0x11}, + {0x4686, 0x00}, + {0x4687, 0x00}, + {0x4700, 0x00}, + {0x4800, 0x64}, + {0x4806, 0x40}, + {0x480b, 0x10}, + {0x480c, 0x80}, + {0x480f, 0x32}, + {0x4813, 0xe4}, + {0x4837, 0x14}, + {0x4850, 0x42}, + {0x4884, 0x04}, + {0x4c00, 0xf8}, + {0x4c01, 0x44}, + {0x4c03, 0x00}, + {0x4d00, 0x00}, + {0x4d01, 0x16}, + {0x4d04, 0x10}, + {0x4d05, 0x00}, + {0x4d06, 0x0c}, + {0x4d07, 0x00}, + {0x3d84, 0x04}, + {0x3680, 0xa4}, + {0x3682, 0x80}, + {0x3601, 0x40}, + {0x3602, 0x90}, + {0x3608, 0x0a}, + {0x3938, 0x09}, + {0x3a74, 0x84}, + {0x3a99, 0x84}, + {0x3ab9, 0xa6}, + {0x3aba, 0xba}, + {0x3b12, 0x84}, + {0x3b14, 0xbb}, + {0x3b15, 0xbf}, + {0x3a29, 0x26}, + {0x3a1f, 0x8a}, + {0x3a22, 0x91}, + {0x3a25, 0x96}, + {0x3a28, 0xb4}, + {0x3a2b, 0xba}, + {0x3a2e, 0xbf}, + {0x3a31, 0xc1}, + {0x3a20, 0x05}, + {0x3939, 0x6b}, + {0x3902, 0x10}, + {0x3903, 0x10}, + {0x3904, 0x10}, + {0x3905, 0x10}, + {0x3906, 0x01}, + {0x3907, 0x0b}, + {0x3908, 0x10}, + {0x3909, 0x13}, + {0x360f, 0x99}, + {0x390b, 0x11}, + {0x390c, 0x21}, + {0x390d, 0x32}, + {0x390e, 0x76}, + {0x3911, 0x90}, + {0x3913, 0x90}, + {0x3b3f, 0x9d}, + {0x3b45, 0x9d}, + {0x3b1b, 0xc9}, + {0x3b21, 0xc9}, + {0x3a1a, 0x1c}, + {0x3a23, 0x15}, + {0x3a26, 0x17}, + {0x3a2c, 0x50}, + {0x3a2f, 0x18}, + {0x3a32, 0x4f}, + {0x3ace, 0x01}, + {0x3ad2, 0x01}, + {0x3ad6, 0x01}, + {0x3ada, 0x01}, + {0x3ade, 0x01}, + {0x3ae2, 0x01}, + {0x3aee, 0x01}, + {0x3af2, 0x01}, + {0x3af6, 0x01}, + {0x3afa, 0x01}, + {0x3afe, 0x01}, + {0x3b02, 0x01}, + {0x3b06, 0x01}, + {0x3b0a, 0x01}, + {0x3b0b, 0x00}, + {0x3b0e, 0x01}, + {0x3b0f, 0x00}, + {0x392c, 0x02}, + {0x392d, 0x01}, + {0x392e, 0x04}, + {0x392f, 0x03}, + {0x3930, 0x09}, + {0x3931, 0x07}, + {0x3932, 0x10}, + {0x3933, 0x0d}, + {0x3609, 0x08}, + {0x3921, 0x0f}, + {0x3928, 0x15}, + {0x3929, 0x2a}, + {0x392a, 0x52}, + {0x392b, 0xa3}, + {0x340b, 0x1b}, + {0x3426, 0x10}, + {0x3407, 0x01}, + {0x3404, 0x01}, + {0x3500, 0x00}, + {0x3501, 0x08}, + {0x3502, 0x10}, + {0x3508, 0x04}, + {0x3509, 0x00}, +}; + +static const char * const ov08x40_test_pattern_menu[] = { + "Disabled", + "Vertical Color Bar Type 1", + "Vertical Color Bar Type 2", + "Vertical Color Bar Type 3", + "Vertical Color Bar Type 4" +}; + +/* Configurations for supported link frequencies */ +#define OV08X40_LINK_FREQ_400MHZ 400000000ULL + +#define OV08X40_EXT_CLK 19200000 +#define OV08X40_DATA_LANES 4 + +/* + * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample + * data rate => double data rate; number of lanes => 4; bits per pixel => 10 + */ +static u64 link_freq_to_pixel_rate(u64 f) +{ + f *= 2 * OV08X40_DATA_LANES; + do_div(f, 10); + + return f; +} + +/* Menu items for LINK_FREQ V4L2 control */ +static const s64 link_freq_menu_items[] = { + OV08X40_LINK_FREQ_400MHZ, +}; + +/* Link frequency configs */ +static const struct ov08x40_link_freq_config link_freq_configs[] = { + [OV08X40_LINK_FREQ_400MHZ_INDEX] = { + .reg_list = { + .num_of_regs = ARRAY_SIZE(mipi_data_rate_800mbps), + .regs = mipi_data_rate_800mbps, + } + }, +}; + +/* Mode configs */ +static const struct ov08x40_mode supported_modes[] = { + { + .width = 3856, + .height = 2416, + .vts_def = OV08X40_VTS_30FPS, + .vts_min = OV08X40_VTS_30FPS, + .lanes = 4, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mode_3856x2416_regs), + .regs = mode_3856x2416_regs, + }, + .link_freq_index = OV08X40_LINK_FREQ_400MHZ_INDEX, + }, + { + .width = 1928, + .height = 1208, + .vts_def = OV08X40_VTS_BIN_30FPS, + .vts_min = OV08X40_VTS_BIN_30FPS, + .lanes = 4, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mode_1928x1208_regs), + .regs = mode_1928x1208_regs, + }, + .link_freq_index = OV08X40_LINK_FREQ_400MHZ_INDEX, + }, +}; + +struct ov08x40 { + struct v4l2_subdev sd; + struct media_pad pad; + + struct v4l2_ctrl_handler ctrl_handler; + /* V4L2 Controls */ + struct v4l2_ctrl *link_freq; + struct v4l2_ctrl *pixel_rate; + struct v4l2_ctrl *vblank; + struct v4l2_ctrl *hblank; + struct v4l2_ctrl *exposure; + + /* Current mode */ + const struct ov08x40_mode *cur_mode; + + /* Mutex for serialized access */ + struct mutex mutex; + + /* Streaming on/off */ + bool streaming; +}; + +#define to_ov08x40(_sd) container_of(_sd, struct ov08x40, sd) + +/* Read registers up to 4 at a time */ +static int ov08x40_read_reg(struct ov08x40 *ov08x, + u16 reg, u32 len, u32 *val) +{ + struct i2c_client *client = v4l2_get_subdevdata(&ov08x->sd); + struct i2c_msg msgs[2]; + u8 *data_be_p; + int ret; + __be32 data_be = 0; + __be16 reg_addr_be = cpu_to_be16(reg); + + if (len > 4) + return -EINVAL; + + data_be_p = (u8 *)&data_be; + /* Write register address */ + msgs[0].addr = client->addr; + msgs[0].flags = 0; + msgs[0].len = 2; + msgs[0].buf = (u8 *)®_addr_be; + + /* Read data from register */ + msgs[1].addr = client->addr; + msgs[1].flags = I2C_M_RD; + msgs[1].len = len; + msgs[1].buf = &data_be_p[4 - len]; + + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret != ARRAY_SIZE(msgs)) + return -EIO; + + *val = be32_to_cpu(data_be); + + return 0; +} + +/* Write registers up to 4 at a time */ +static int ov08x40_write_reg(struct ov08x40 *ov08x, + u16 reg, u32 len, u32 __val) +{ + struct i2c_client *client = v4l2_get_subdevdata(&ov08x->sd); + int buf_i, val_i; + u8 buf[6], *val_p; + __be32 val; + + if (len > 4) + return -EINVAL; + + buf[0] = reg >> 8; + buf[1] = reg & 0xff; + + val = cpu_to_be32(__val); + val_p = (u8 *)&val; + buf_i = 2; + val_i = 4 - len; + + while (val_i < 4) + buf[buf_i++] = val_p[val_i++]; + + if (i2c_master_send(client, buf, len + 2) != len + 2) + return -EIO; + + return 0; +} + +/* Write a list of registers */ +static int ov08x40_write_regs(struct ov08x40 *ov08x, + const struct ov08x40_reg *regs, u32 len) +{ + struct i2c_client *client = v4l2_get_subdevdata(&ov08x->sd); + int ret; + u32 i; + + for (i = 0; i < len; i++) { + ret = ov08x40_write_reg(ov08x, regs[i].address, 1, + regs[i].val); + + if (ret) { + dev_err_ratelimited(&client->dev, + "Failed to write reg 0x%4.4x. error = %d\n", + regs[i].address, ret); + + return ret; + } + } + + return 0; +} + +static int ov08x40_write_reg_list(struct ov08x40 *ov08x, + const struct ov08x40_reg_list *r_list) +{ + return ov08x40_write_regs(ov08x, r_list->regs, r_list->num_of_regs); +} + +static int ov08x40_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) +{ + const struct ov08x40_mode *default_mode = &supported_modes[0]; + struct ov08x40 *ov08x = to_ov08x40(sd); + struct v4l2_mbus_framefmt *try_fmt = + v4l2_subdev_get_try_format(sd, fh->state, 0); + + mutex_lock(&ov08x->mutex); + + /* Initialize try_fmt */ + try_fmt->width = default_mode->width; + try_fmt->height = default_mode->height; + try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10; + try_fmt->field = V4L2_FIELD_NONE; + + /* No crop or compose */ + mutex_unlock(&ov08x->mutex); + + return 0; +} + +static int ov08x40_update_digital_gain(struct ov08x40 *ov08x, u32 d_gain) +{ + int ret; + u32 val; + + /* + * 0x350C[1:0], 0x350B[7:0], 0x350A[4:0] + */ + + val = (d_gain & OV08X40_DGTL_GAIN_L_MASK) << OV08X40_DGTL_GAIN_L_SHIFT; + ret = ov08x40_write_reg(ov08x, OV08X40_REG_DGTL_GAIN_L, + OV08X40_REG_VALUE_08BIT, val); + if (ret) + return ret; + + val = (d_gain >> OV08X40_DGTL_GAIN_M_SHIFT) & OV08X40_DGTL_GAIN_M_MASK; + ret = ov08x40_write_reg(ov08x, OV08X40_REG_DGTL_GAIN_M, + OV08X40_REG_VALUE_08BIT, val); + if (ret) + return ret; + + val = (d_gain >> OV08X40_DGTL_GAIN_H_SHIFT) & OV08X40_DGTL_GAIN_H_MASK; + + return ov08x40_write_reg(ov08x, OV08X40_REG_DGTL_GAIN_H, + OV08X40_REG_VALUE_08BIT, val); +} + +static int ov08x40_enable_test_pattern(struct ov08x40 *ov08x, u32 pattern) +{ + int ret; + u32 val; + + ret = ov08x40_read_reg(ov08x, OV08X40_REG_TEST_PATTERN, + OV08X40_REG_VALUE_08BIT, &val); + if (ret) + return ret; + + if (pattern) { + ret = ov08x40_read_reg(ov08x, OV08X40_REG_ISP, + OV08X40_REG_VALUE_08BIT, &val); + if (ret) + return ret; + + ret = ov08x40_write_reg(ov08x, OV08X40_REG_ISP, + OV08X40_REG_VALUE_08BIT, + val | BIT(1)); + if (ret) + return ret; + + ret = ov08x40_read_reg(ov08x, OV08X40_REG_SHORT_TEST_PATTERN, + OV08X40_REG_VALUE_08BIT, &val); + if (ret) + return ret; + + ret = ov08x40_write_reg(ov08x, OV08X40_REG_SHORT_TEST_PATTERN, + OV08X40_REG_VALUE_08BIT, + val | BIT(0)); + if (ret) + return ret; + + ret = ov08x40_read_reg(ov08x, OV08X40_REG_TEST_PATTERN, + OV08X40_REG_VALUE_08BIT, &val); + if (ret) + return ret; + + val &= OV08X40_TEST_PATTERN_MASK; + val |= ((pattern - 1) << OV08X40_TEST_PATTERN_BAR_SHIFT) | + OV08X40_TEST_PATTERN_ENABLE; + } else { + val &= ~OV08X40_TEST_PATTERN_ENABLE; + } + + return ov08x40_write_reg(ov08x, OV08X40_REG_TEST_PATTERN, + OV08X40_REG_VALUE_08BIT, val); +} + +static int ov08x40_set_ctrl_hflip(struct ov08x40 *ov08x, u32 ctrl_val) +{ + int ret; + u32 val; + + ret = ov08x40_read_reg(ov08x, OV08X40_REG_MIRROR, + OV08X40_REG_VALUE_08BIT, &val); + if (ret) + return ret; + + return ov08x40_write_reg(ov08x, OV08X40_REG_MIRROR, + OV08X40_REG_VALUE_08BIT, + ctrl_val ? val | BIT(2) : val & ~BIT(2)); +} + +static int ov08x40_set_ctrl_vflip(struct ov08x40 *ov08x, u32 ctrl_val) +{ + int ret; + u32 val; + + ret = ov08x40_read_reg(ov08x, OV08X40_REG_VFLIP, + OV08X40_REG_VALUE_08BIT, &val); + if (ret) + return ret; + + return ov08x40_write_reg(ov08x, OV08X40_REG_VFLIP, + OV08X40_REG_VALUE_08BIT, + ctrl_val ? val | BIT(2) : val & ~BIT(2)); +} + +static int ov08x40_set_ctrl(struct v4l2_ctrl *ctrl) +{ + struct ov08x40 *ov08x = container_of(ctrl->handler, + struct ov08x40, ctrl_handler); + struct i2c_client *client = v4l2_get_subdevdata(&ov08x->sd); + s64 max; + int ret = 0; + + /* Propagate change of current control to all related controls */ + switch (ctrl->id) { + case V4L2_CID_VBLANK: + /* Update max exposure while meeting expected vblanking */ + max = ov08x->cur_mode->height + ctrl->val - OV08X40_EXPOSURE_MAX_MARGIN; + __v4l2_ctrl_modify_range(ov08x->exposure, + ov08x->exposure->minimum, + max, ov08x->exposure->step, max); + break; + } + + /* + * Applying V4L2 control value only happens + * when power is up for streaming + */ + if (!pm_runtime_get_if_in_use(&client->dev)) + return 0; + + switch (ctrl->id) { + case V4L2_CID_ANALOGUE_GAIN: + ret = ov08x40_write_reg(ov08x, OV08X40_REG_ANALOG_GAIN, + OV08X40_REG_VALUE_16BIT, + ctrl->val << 1); + break; + case V4L2_CID_DIGITAL_GAIN: + ret = ov08x40_update_digital_gain(ov08x, ctrl->val); + break; + case V4L2_CID_EXPOSURE: + ret = ov08x40_write_reg(ov08x, OV08X40_REG_EXPOSURE, + OV08X40_REG_VALUE_24BIT, + ctrl->val); + break; + case V4L2_CID_VBLANK: + ret = ov08x40_write_reg(ov08x, OV08X40_REG_VTS, + OV08X40_REG_VALUE_16BIT, + ov08x->cur_mode->height + + ctrl->val); + break; + case V4L2_CID_TEST_PATTERN: + ret = ov08x40_enable_test_pattern(ov08x, ctrl->val); + break; + case V4L2_CID_HFLIP: + ov08x40_set_ctrl_hflip(ov08x, ctrl->val); + break; + case V4L2_CID_VFLIP: + ov08x40_set_ctrl_vflip(ov08x, ctrl->val); + break; + default: + dev_info(&client->dev, + "ctrl(id:0x%x,val:0x%x) is not handled\n", + ctrl->id, ctrl->val); + break; + } + + pm_runtime_put(&client->dev); + + return ret; +} + +static const struct v4l2_ctrl_ops ov08x40_ctrl_ops = { + .s_ctrl = ov08x40_set_ctrl, +}; + +static int ov08x40_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_mbus_code_enum *code) +{ + /* Only one bayer order(GRBG) is supported */ + if (code->index > 0) + return -EINVAL; + + code->code = MEDIA_BUS_FMT_SGRBG10_1X10; + + return 0; +} + +static int ov08x40_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_frame_size_enum *fse) +{ + if (fse->index >= ARRAY_SIZE(supported_modes)) + return -EINVAL; + + if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10) + return -EINVAL; + + fse->min_width = supported_modes[fse->index].width; + fse->max_width = fse->min_width; + fse->min_height = supported_modes[fse->index].height; + fse->max_height = fse->min_height; + + return 0; +} + +static void ov08x40_update_pad_format(const struct ov08x40_mode *mode, + struct v4l2_subdev_format *fmt) +{ + fmt->format.width = mode->width; + fmt->format.height = mode->height; + fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; + fmt->format.field = V4L2_FIELD_NONE; +} + +static int ov08x40_do_get_pad_format(struct ov08x40 *ov08x, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_format *fmt) +{ + struct v4l2_mbus_framefmt *framefmt; + struct v4l2_subdev *sd = &ov08x->sd; + + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { + framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad); + fmt->format = *framefmt; + } else { + ov08x40_update_pad_format(ov08x->cur_mode, fmt); + } + + return 0; +} + +static int ov08x40_get_pad_format(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_format *fmt) +{ + struct ov08x40 *ov08x = to_ov08x40(sd); + int ret; + + mutex_lock(&ov08x->mutex); + ret = ov08x40_do_get_pad_format(ov08x, sd_state, fmt); + mutex_unlock(&ov08x->mutex); + + return ret; +} + +static int +ov08x40_set_pad_format(struct v4l2_subdev *sd, + struct v4l2_subdev_state *sd_state, + struct v4l2_subdev_format *fmt) +{ + struct ov08x40 *ov08x = to_ov08x40(sd); + const struct ov08x40_mode *mode; + struct v4l2_mbus_framefmt *framefmt; + s32 vblank_def; + s32 vblank_min; + s64 h_blank; + s64 pixel_rate; + s64 link_freq; + + mutex_lock(&ov08x->mutex); + + /* Only one raw bayer(GRBG) order is supported */ + if (fmt->format.code != MEDIA_BUS_FMT_SGRBG10_1X10) + fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; + + mode = v4l2_find_nearest_size(supported_modes, + ARRAY_SIZE(supported_modes), + width, height, + fmt->format.width, fmt->format.height); + ov08x40_update_pad_format(mode, fmt); + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { + framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad); + *framefmt = fmt->format; + } else { + ov08x->cur_mode = mode; + __v4l2_ctrl_s_ctrl(ov08x->link_freq, mode->link_freq_index); + link_freq = link_freq_menu_items[mode->link_freq_index]; + pixel_rate = link_freq_to_pixel_rate(link_freq); + __v4l2_ctrl_s_ctrl_int64(ov08x->pixel_rate, pixel_rate); + + /* Update limits and set FPS to default */ + vblank_def = ov08x->cur_mode->vts_def - + ov08x->cur_mode->height; + vblank_min = ov08x->cur_mode->vts_min - + ov08x->cur_mode->height; + __v4l2_ctrl_modify_range(ov08x->vblank, vblank_min, + OV08X40_VTS_MAX + - ov08x->cur_mode->height, + 1, + vblank_def); + __v4l2_ctrl_s_ctrl(ov08x->vblank, vblank_def); + h_blank = + link_freq_configs[mode->link_freq_index].pixels_per_line + - ov08x->cur_mode->width; + __v4l2_ctrl_modify_range(ov08x->hblank, h_blank, + h_blank, 1, h_blank); + } + + mutex_unlock(&ov08x->mutex); + + return 0; +} + +static int ov08x40_start_streaming(struct ov08x40 *ov08x) +{ + struct i2c_client *client = v4l2_get_subdevdata(&ov08x->sd); + const struct ov08x40_reg_list *reg_list; + int ret, link_freq_index; + + /* Get out of from software reset */ + ret = ov08x40_write_reg(ov08x, OV08X40_REG_SOFTWARE_RST, + OV08X40_REG_VALUE_08BIT, OV08X40_SOFTWARE_RST); + if (ret) { + dev_err(&client->dev, "%s failed to set powerup registers\n", + __func__); + return ret; + } + + link_freq_index = ov08x->cur_mode->link_freq_index; + reg_list = &link_freq_configs[link_freq_index].reg_list; + + ret = ov08x40_write_reg_list(ov08x, reg_list); + if (ret) { + dev_err(&client->dev, "%s failed to set plls\n", __func__); + return ret; + } + + /* Apply default values of current mode */ + reg_list = &ov08x->cur_mode->reg_list; + ret = ov08x40_write_reg_list(ov08x, reg_list); + if (ret) { + dev_err(&client->dev, "%s failed to set mode\n", __func__); + return ret; + } + + /* Apply customized values from user */ + ret = __v4l2_ctrl_handler_setup(ov08x->sd.ctrl_handler); + if (ret) + return ret; + + return ov08x40_write_reg(ov08x, OV08X40_REG_MODE_SELECT, + OV08X40_REG_VALUE_08BIT, + OV08X40_MODE_STREAMING); +} + +/* Stop streaming */ +static int ov08x40_stop_streaming(struct ov08x40 *ov08x) +{ + return ov08x40_write_reg(ov08x, OV08X40_REG_MODE_SELECT, + OV08X40_REG_VALUE_08BIT, OV08X40_MODE_STANDBY); +} + +static int ov08x40_set_stream(struct v4l2_subdev *sd, int enable) +{ + struct ov08x40 *ov08x = to_ov08x40(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret = 0; + + mutex_lock(&ov08x->mutex); + if (ov08x->streaming == enable) { + mutex_unlock(&ov08x->mutex); + return 0; + } + + if (enable) { + ret = pm_runtime_resume_and_get(&client->dev); + if (ret < 0) + goto err_unlock; + + /* + * Apply default & customized values + * and then start streaming. + */ + ret = ov08x40_start_streaming(ov08x); + if (ret) + goto err_rpm_put; + } else { + ov08x40_stop_streaming(ov08x); + pm_runtime_put(&client->dev); + } + + ov08x->streaming = enable; + mutex_unlock(&ov08x->mutex); + + return ret; + +err_rpm_put: + pm_runtime_put(&client->dev); +err_unlock: + mutex_unlock(&ov08x->mutex); + + return ret; +} + +static int __maybe_unused ov08x40_suspend(struct device *dev) +{ + struct v4l2_subdev *sd = dev_get_drvdata(dev); + struct ov08x40 *ov08x = to_ov08x40(sd); + + if (ov08x->streaming) + ov08x40_stop_streaming(ov08x); + + return 0; +} + +static int __maybe_unused ov08x40_resume(struct device *dev) +{ + struct v4l2_subdev *sd = dev_get_drvdata(dev); + struct ov08x40 *ov08x = to_ov08x40(sd); + int ret; + + if (ov08x->streaming) { + ret = ov08x40_start_streaming(ov08x); + if (ret) + goto error; + } + + return 0; + +error: + ov08x40_stop_streaming(ov08x); + ov08x->streaming = false; + return ret; +} + +/* Verify chip ID */ +static int ov08x40_identify_module(struct ov08x40 *ov08x) +{ + struct i2c_client *client = v4l2_get_subdevdata(&ov08x->sd); + int ret; + u32 val; + + ret = ov08x40_read_reg(ov08x, OV08X40_REG_CHIP_ID, + OV08X40_REG_VALUE_24BIT, &val); + if (ret) + return ret; + + if (val != OV08X40_CHIP_ID) { + dev_err(&client->dev, "chip id mismatch: %x!=%x\n", + OV08X40_CHIP_ID, val); + return -EIO; + } + + return 0; +} + +static const struct v4l2_subdev_video_ops ov08x40_video_ops = { + .s_stream = ov08x40_set_stream, +}; + +static const struct v4l2_subdev_pad_ops ov08x40_pad_ops = { + .enum_mbus_code = ov08x40_enum_mbus_code, + .get_fmt = ov08x40_get_pad_format, + .set_fmt = ov08x40_set_pad_format, + .enum_frame_size = ov08x40_enum_frame_size, +}; + +static const struct v4l2_subdev_ops ov08x40_subdev_ops = { + .video = &ov08x40_video_ops, + .pad = &ov08x40_pad_ops, +}; + +static const struct media_entity_operations ov08x40_subdev_entity_ops = { + .link_validate = v4l2_subdev_link_validate, +}; + +static const struct v4l2_subdev_internal_ops ov08x40_internal_ops = { + .open = ov08x40_open, +}; + +static int ov08x40_init_controls(struct ov08x40 *ov08x) +{ + struct i2c_client *client = v4l2_get_subdevdata(&ov08x->sd); + struct v4l2_fwnode_device_properties props; + struct v4l2_ctrl_handler *ctrl_hdlr; + s64 exposure_max; + s64 vblank_def; + s64 vblank_min; + s64 hblank; + s64 pixel_rate_min; + s64 pixel_rate_max; + const struct ov08x40_mode *mode; + u32 max; + int ret; + + ctrl_hdlr = &ov08x->ctrl_handler; + ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10); + if (ret) + return ret; + + mutex_init(&ov08x->mutex); + ctrl_hdlr->lock = &ov08x->mutex; + max = ARRAY_SIZE(link_freq_menu_items) - 1; + ov08x->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, + &ov08x40_ctrl_ops, + V4L2_CID_LINK_FREQ, + max, + 0, + link_freq_menu_items); + if (ov08x->link_freq) + ov08x->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]); + pixel_rate_min = 0; + /* By default, PIXEL_RATE is read only */ + ov08x->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov08x40_ctrl_ops, + V4L2_CID_PIXEL_RATE, + pixel_rate_min, pixel_rate_max, + 1, pixel_rate_max); + + mode = ov08x->cur_mode; + vblank_def = mode->vts_def - mode->height; + vblank_min = mode->vts_min - mode->height; + ov08x->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov08x40_ctrl_ops, + V4L2_CID_VBLANK, + vblank_min, + OV08X40_VTS_MAX - mode->height, 1, + vblank_def); + + hblank = link_freq_configs[mode->link_freq_index].pixels_per_line - + mode->width; + ov08x->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov08x40_ctrl_ops, + V4L2_CID_HBLANK, + hblank, hblank, 1, hblank); + if (ov08x->hblank) + ov08x->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + exposure_max = mode->vts_def - OV08X40_EXPOSURE_MAX_MARGIN; + ov08x->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov08x40_ctrl_ops, + V4L2_CID_EXPOSURE, + OV08X40_EXPOSURE_MIN, + exposure_max, OV08X40_EXPOSURE_STEP, + exposure_max); + + v4l2_ctrl_new_std(ctrl_hdlr, &ov08x40_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, + OV08X40_ANA_GAIN_MIN, OV08X40_ANA_GAIN_MAX, + OV08X40_ANA_GAIN_STEP, OV08X40_ANA_GAIN_DEFAULT); + + /* Digital gain */ + v4l2_ctrl_new_std(ctrl_hdlr, &ov08x40_ctrl_ops, V4L2_CID_DIGITAL_GAIN, + OV08X40_DGTL_GAIN_MIN, OV08X40_DGTL_GAIN_MAX, + OV08X40_DGTL_GAIN_STEP, OV08X40_DGTL_GAIN_DEFAULT); + + v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov08x40_ctrl_ops, + V4L2_CID_TEST_PATTERN, + ARRAY_SIZE(ov08x40_test_pattern_menu) - 1, + 0, 0, ov08x40_test_pattern_menu); + + v4l2_ctrl_new_std(ctrl_hdlr, &ov08x40_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + v4l2_ctrl_new_std(ctrl_hdlr, &ov08x40_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + + if (ctrl_hdlr->error) { + ret = ctrl_hdlr->error; + dev_err(&client->dev, "%s control init failed (%d)\n", + __func__, ret); + goto error; + } + + ret = v4l2_fwnode_device_parse(&client->dev, &props); + if (ret) + goto error; + + ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &ov08x40_ctrl_ops, + &props); + if (ret) + goto error; + + ov08x->sd.ctrl_handler = ctrl_hdlr; + + return 0; + +error: + v4l2_ctrl_handler_free(ctrl_hdlr); + mutex_destroy(&ov08x->mutex); + + return ret; +} + +static void ov08x40_free_controls(struct ov08x40 *ov08x) +{ + v4l2_ctrl_handler_free(ov08x->sd.ctrl_handler); + mutex_destroy(&ov08x->mutex); +} + +static int ov08x40_check_hwcfg(struct device *dev) +{ + struct v4l2_fwnode_endpoint bus_cfg = { + .bus_type = V4L2_MBUS_CSI2_DPHY + }; + struct fwnode_handle *ep; + struct fwnode_handle *fwnode = dev_fwnode(dev); + unsigned int i, j; + int ret; + u32 ext_clk; + + if (!fwnode) + return -ENXIO; + + ret = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency", + &ext_clk); + if (ret) { + dev_err(dev, "can't get clock frequency"); + return ret; + } + + if (ext_clk != OV08X40_EXT_CLK) { + dev_err(dev, "external clock %d is not supported", + ext_clk); + return -EINVAL; + } + + ep = fwnode_graph_get_next_endpoint(fwnode, NULL); + if (!ep) + return -ENXIO; + + ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); + fwnode_handle_put(ep); + if (ret) + return ret; + + if (bus_cfg.bus.mipi_csi2.num_data_lanes != OV08X40_DATA_LANES) { + dev_err(dev, "number of CSI2 data lanes %d is not supported", + bus_cfg.bus.mipi_csi2.num_data_lanes); + ret = -EINVAL; + goto out_err; + } + + if (!bus_cfg.nr_of_link_frequencies) { + dev_err(dev, "no link frequencies defined"); + ret = -EINVAL; + goto out_err; + } + + for (i = 0; i < ARRAY_SIZE(link_freq_menu_items); i++) { + for (j = 0; j < bus_cfg.nr_of_link_frequencies; j++) { + if (link_freq_menu_items[i] == + bus_cfg.link_frequencies[j]) + break; + } + + if (j == bus_cfg.nr_of_link_frequencies) { + dev_err(dev, "no link frequency %lld supported", + link_freq_menu_items[i]); + ret = -EINVAL; + goto out_err; + } + } + +out_err: + v4l2_fwnode_endpoint_free(&bus_cfg); + + return ret; +} + +static int ov08x40_probe(struct i2c_client *client) +{ + struct ov08x40 *ov08x; + int ret; + + /* Check HW config */ + ret = ov08x40_check_hwcfg(&client->dev); + if (ret) { + dev_err(&client->dev, "failed to check hwcfg: %d", ret); + return ret; + } + + ov08x = devm_kzalloc(&client->dev, sizeof(*ov08x), GFP_KERNEL); + if (!ov08x) + return -ENOMEM; + + /* Initialize subdev */ + v4l2_i2c_subdev_init(&ov08x->sd, client, &ov08x40_subdev_ops); + + /* Check module identity */ + ret = ov08x40_identify_module(ov08x); + if (ret) { + dev_err(&client->dev, "failed to find sensor: %d\n", ret); + return ret; + } + + /* Set default mode to max resolution */ + ov08x->cur_mode = &supported_modes[0]; + + ret = ov08x40_init_controls(ov08x); + if (ret) + return ret; + + /* Initialize subdev */ + ov08x->sd.internal_ops = &ov08x40_internal_ops; + ov08x->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + ov08x->sd.entity.ops = &ov08x40_subdev_entity_ops; + ov08x->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; + + /* Initialize source pad */ + ov08x->pad.flags = MEDIA_PAD_FL_SOURCE; + ret = media_entity_pads_init(&ov08x->sd.entity, 1, &ov08x->pad); + if (ret) { + dev_err(&client->dev, "%s failed:%d\n", __func__, ret); + goto error_handler_free; + } + + ret = v4l2_async_register_subdev_sensor(&ov08x->sd); + if (ret < 0) + goto error_media_entity; + + /* + * Device is already turned on by i2c-core with ACPI domain PM. + * Enable runtime PM and turn off the device. + */ + pm_runtime_set_active(&client->dev); + pm_runtime_enable(&client->dev); + pm_runtime_idle(&client->dev); + + return 0; + +error_media_entity: + media_entity_cleanup(&ov08x->sd.entity); + +error_handler_free: + ov08x40_free_controls(ov08x); + + return ret; +} + +static int ov08x40_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct ov08x40 *ov08x = to_ov08x40(sd); + + v4l2_async_unregister_subdev(sd); + media_entity_cleanup(&sd->entity); + ov08x40_free_controls(ov08x); + + pm_runtime_disable(&client->dev); + pm_runtime_set_suspended(&client->dev); + + return 0; +} + +static const struct dev_pm_ops ov08x40_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(ov08x40_suspend, ov08x40_resume) +}; + +#ifdef CONFIG_ACPI +static const struct acpi_device_id ov08x40_acpi_ids[] = { + {"OVTI08F4"}, + { /* sentinel */ } +}; + +MODULE_DEVICE_TABLE(acpi, ov08x40_acpi_ids); +#endif + +static struct i2c_driver ov08x40_i2c_driver = { + .driver = { + .name = "ov08x40", + .pm = &ov08x40_pm_ops, + .acpi_match_table = ACPI_PTR(ov08x40_acpi_ids), + }, + .probe_new = ov08x40_probe, + .remove = ov08x40_remove, +}; + +module_i2c_driver(ov08x40_i2c_driver); + +MODULE_AUTHOR("Jason Chen "); +MODULE_AUTHOR("Shawn Tu "); +MODULE_DESCRIPTION("OmniVision OV08X40 sensor driver"); +MODULE_LICENSE("GPL");