From: Benoit Parrot <bparrot@xxxxxx> this patch adds support for omnivision's ov2659 sensor, the driver supports following features: 1: Asynchronous probing 2: DT support 3: Media controller support Signed-off-by: Benoit Parrot <bparrot@xxxxxx> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx> --- Changes for v5: a: Implemented V4L2_CID_PIXEL_RATE control. b: Fixed review comments pointed by Sakari. v4: https://patchwork.kernel.org/patch/5961661/ v3: https://patchwork.kernel.org/patch/5959401/ v2: https://patchwork.kernel.org/patch/5859801/ v1: https://patchwork.linuxtv.org/patch/27919/ .../devicetree/bindings/media/i2c/ov2659.txt | 38 + MAINTAINERS | 10 + drivers/media/i2c/Kconfig | 11 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/ov2659.c | 1510 ++++++++++++++++++++ include/media/ov2659.h | 33 + 6 files changed, 1603 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/ov2659.txt create mode 100644 drivers/media/i2c/ov2659.c create mode 100644 include/media/ov2659.h diff --git a/Documentation/devicetree/bindings/media/i2c/ov2659.txt b/Documentation/devicetree/bindings/media/i2c/ov2659.txt new file mode 100644 index 0000000..cabc7d8 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/ov2659.txt @@ -0,0 +1,38 @@ +* OV2659 1/5-Inch 2Mp SOC Camera + +The Omnivision OV2659 is a 1/5-inch SOC camera, with an active array size of +1632H x 1212V. It is programmable through a SCCB. The OV2659 sensor supports +multiple resolutions output, such as UXGA, SVGA, 720p. It also can support +YUV422, RGB565/555 or raw RGB output formats. + +Required Properties: +- compatible: Must be "ovti,ov2659" +- reg: I2C slave address +- clocks: reference to the xvclk input clock. +- clock-names: should be "xvclk". +- link-frequencies: target pixel clock frequency. + +For further reading on port node refer to +Documentation/devicetree/bindings/media/video-interfaces.txt. + +Example: + + i2c0@1c22000 { + ... + ... + ov2659@30 { + compatible = "ovti,ov2659"; + reg = <0x30>; + + clocks = <&clk_ov2659 0>; + clock-names = "xvclk"; + + port { + ov2659_0: endpoint { + remote-endpoint = <&vpfe_ep>; + link-frequencies = /bits/ 64 <70000000>; + }; + }; + }; + ... + }; diff --git a/MAINTAINERS b/MAINTAINERS index ddc5a8c..4006cc8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8910,6 +8910,16 @@ T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git S: Maintained F: drivers/media/platform/am437x/ +OV2659 OMNIVISION SENSOR DRIVER +M: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx> +L: linux-media@xxxxxxxxxxxxxxx +W: http://linuxtv.org/ +Q: http://patchwork.linuxtv.org/project/linux-media/list/ +T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git +S: Maintained +F: drivers/media/i2c/ov2659.c +F: include/media/ov2659.h + SIS 190 ETHERNET DRIVER M: Francois Romieu <romieu@xxxxxxxxxxxxx> L: netdev@xxxxxxxxxxxxxxx diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index da58c9b..6f30ea7 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -466,6 +466,17 @@ config VIDEO_APTINA_PLL config VIDEO_SMIAPP_PLL tristate +config VIDEO_OV2659 + tristate "OmniVision OV2659 sensor support" + depends on VIDEO_V4L2 && I2C + depends on MEDIA_CAMERA_SUPPORT + ---help--- + This is a Video4Linux2 sensor-level driver for the OmniVision + OV2659 camera. + + To compile this driver as a module, choose M here: the + module will be called ov2659. + config VIDEO_OV7640 tristate "OmniVision OV7640 sensor support" depends on I2C && VIDEO_V4L2 diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index 98589001..f165fae 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -77,3 +77,4 @@ obj-$(CONFIG_VIDEO_SMIAPP_PLL) += smiapp-pll.o obj-$(CONFIG_VIDEO_AK881X) += ak881x.o obj-$(CONFIG_VIDEO_IR_I2C) += ir-kbd-i2c.o obj-$(CONFIG_VIDEO_ML86V7667) += ml86v7667.o +obj-$(CONFIG_VIDEO_OV2659) += ov2659.o diff --git a/drivers/media/i2c/ov2659.c b/drivers/media/i2c/ov2659.c new file mode 100644 index 0000000..1cdbb63 --- /dev/null +++ b/drivers/media/i2c/ov2659.c @@ -0,0 +1,1510 @@ +/* + * Omnivision OV2659 CMOS Image Sensor driver + * + * Copyright (C) 2015 Texas Instruments, Inc. + * + * Benoit Parrot <bparrot@xxxxxx> + * Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx> + * + * This program is free software; you may redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/i2c.h> +#include <linux/kernel.h> +#include <linux/media.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_graph.h> +#include <linux/slab.h> +#include <linux/uaccess.h> +#include <linux/videodev2.h> + +#include <media/media-entity.h> +#include <media/ov2659.h> +#include <media/v4l2-common.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <media/v4l2-event.h> +#include <media/v4l2-image-sizes.h> +#include <media/v4l2-mediabus.h> +#include <media/v4l2-of.h> +#include <media/v4l2-subdev.h> + +#define DRIVER_NAME "ov2659" + +/* + * OV2659 register definitions + */ +#define REG_SOFTWARE_STANDBY 0x0100 +#define REG_SOFTWARE_RESET 0x0103 +#define REG_IO_CTRL00 0x3000 +#define REG_IO_CTRL01 0x3001 +#define REG_IO_CTRL02 0x3002 +#define REG_OUTPUT_VALUE00 0x3008 +#define REG_OUTPUT_VALUE01 0x3009 +#define REG_OUTPUT_VALUE02 0x300d +#define REG_OUTPUT_SELECT00 0x300e +#define REG_OUTPUT_SELECT01 0x300f +#define REG_OUTPUT_SELECT02 0x3010 +#define REG_OUTPUT_DRIVE 0x3011 +#define REG_INPUT_READOUT00 0x302d +#define REG_INPUT_READOUT01 0x302e +#define REG_INPUT_READOUT02 0x302f + +#define REG_SC_PLL_CTRL0 0x3003 +#define REG_SC_PLL_CTRL1 0x3004 +#define REG_SC_PLL_CTRL2 0x3005 +#define REG_SC_PLL_CTRL3 0x3006 +#define REG_SC_CHIP_ID_H 0x300a +#define REG_SC_CHIP_ID_L 0x300b +#define REG_SC_PWC 0x3014 +#define REG_SC_CLKRST0 0x301a +#define REG_SC_CLKRST1 0x301b +#define REG_SC_CLKRST2 0x301c +#define REG_SC_CLKRST3 0x301d +#define REG_SC_SUB_ID 0x302a +#define REG_SC_SCCB_ID 0x302b + +#define REG_GROUP_ADDRESS_00 0x3200 +#define REG_GROUP_ADDRESS_01 0x3201 +#define REG_GROUP_ADDRESS_02 0x3202 +#define REG_GROUP_ADDRESS_03 0x3203 +#define REG_GROUP_ACCESS 0x3208 + +#define REG_AWB_R_GAIN_H 0x3400 +#define REG_AWB_R_GAIN_L 0x3401 +#define REG_AWB_G_GAIN_H 0x3402 +#define REG_AWB_G_GAIN_L 0x3403 +#define REG_AWB_B_GAIN_H 0x3404 +#define REG_AWB_B_GAIN_L 0x3405 +#define REG_AWB_MANUAL_CONTROL 0x3406 + +#define REG_TIMING_HS_H 0x3800 +#define REG_TIMING_HS_L 0x3801 +#define REG_TIMING_VS_H 0x3802 +#define REG_TIMING_VS_L 0x3803 +#define REG_TIMING_HW_H 0x3804 +#define REG_TIMING_HW_L 0x3805 +#define REG_TIMING_VH_H 0x3806 +#define REG_TIMING_VH_L 0x3807 +#define REG_TIMING_DVPHO_H 0x3808 +#define REG_TIMING_DVPHO_L 0x3809 +#define REG_TIMING_DVPVO_H 0x380a +#define REG_TIMING_DVPVO_L 0x380b +#define REG_TIMING_HTS_H 0x380c +#define REG_TIMING_HTS_L 0x380d +#define REG_TIMING_VTS_H 0x380e +#define REG_TIMING_VTS_L 0x380f +#define REG_TIMING_HOFFS_H 0x3810 +#define REG_TIMING_HOFFS_L 0x3811 +#define REG_TIMING_VOFFS_H 0x3812 +#define REG_TIMING_VOFFS_L 0x3813 +#define REG_TIMING_XINC 0x3814 +#define REG_TIMING_YINC 0x3815 +#define REG_TIMING_VERT_FORMAT 0x3820 +#define REG_TIMING_HORIZ_FORMAT 0x3821 + +#define REG_FORMAT_CTRL00 0x4300 + +#define REG_VFIFO_READ_START_H 0x4608 +#define REG_VFIFO_READ_START_L 0x4609 + +#define REG_DVP_CTRL02 0x4708 + +#define REG_ISP_CTRL00 0x5000 +#define REG_ISP_CTRL01 0x5001 +#define REG_ISP_CTRL02 0x5002 + +#define REG_LENC_RED_X0_H 0x500c +#define REG_LENC_RED_X0_L 0x500d +#define REG_LENC_RED_Y0_H 0x500e +#define REG_LENC_RED_Y0_L 0x500f +#define REG_LENC_RED_A1 0x5010 +#define REG_LENC_RED_B1 0x5011 +#define REG_LENC_RED_A2_B2 0x5012 +#define REG_LENC_GREEN_X0_H 0x5013 +#define REG_LENC_GREEN_X0_L 0x5014 +#define REG_LENC_GREEN_Y0_H 0x5015 +#define REG_LENC_GREEN_Y0_L 0x5016 +#define REG_LENC_GREEN_A1 0x5017 +#define REG_LENC_GREEN_B1 0x5018 +#define REG_LENC_GREEN_A2_B2 0x5019 +#define REG_LENC_BLUE_X0_H 0x501a +#define REG_LENC_BLUE_X0_L 0x501b +#define REG_LENC_BLUE_Y0_H 0x501c +#define REG_LENC_BLUE_Y0_L 0x501d +#define REG_LENC_BLUE_A1 0x501e +#define REG_LENC_BLUE_B1 0x501f +#define REG_LENC_BLUE_A2_B2 0x5020 + +#define REG_AWB_CTRL00 0x5035 +#define REG_AWB_CTRL01 0x5036 +#define REG_AWB_CTRL02 0x5037 +#define REG_AWB_CTRL03 0x5038 +#define REG_AWB_CTRL04 0x5039 +#define REG_AWB_LOCAL_LIMIT 0x503a +#define REG_AWB_CTRL12 0x5049 +#define REG_AWB_CTRL13 0x504a +#define REG_AWB_CTRL14 0x504b + +#define REG_SHARPENMT_THRESH1 0x5064 +#define REG_SHARPENMT_THRESH2 0x5065 +#define REG_SHARPENMT_OFFSET1 0x5066 +#define REG_SHARPENMT_OFFSET2 0x5067 +#define REG_DENOISE_THRESH1 0x5068 +#define REG_DENOISE_THRESH2 0x5069 +#define REG_DENOISE_OFFSET1 0x506a +#define REG_DENOISE_OFFSET2 0x506b +#define REG_SHARPEN_THRESH1 0x506c +#define REG_SHARPEN_THRESH2 0x506d +#define REG_CIP_CTRL00 0x506e +#define REG_CIP_CTRL01 0x506f + +#define REG_CMX_SIGN 0x5079 +#define REG_CMX_MISC_CTRL 0x507a + +#define REG_PRE_ISP_CTRL00 0x50a0 +#define TEST_PATTERN_ENABLE BIT(7) +#define VERTICAL_COLOR_BAR_MASK 0x53 + +#define REG_NULL 0x0000 /* Array end token */ + +#define OV265X_ID(_msb, _lsb) ((_msb) << 8 | (_lsb)) +#define OV2659_ID 0x2656 + +struct sensor_register { + u16 addr; + u8 value; +}; + +struct ov2659_framesize { + u16 width; + u16 height; + u16 max_exp_lines; + const struct sensor_register *regs; +}; + +struct ov2659_pll_ctrl { + u8 ctrl1; + u8 ctrl2; + u8 ctrl3; +}; + +struct ov2659_pixfmt { + u32 code; + u32 colorspace; + /* Output format Register Value (REG_FORMAT_CTRL00) */ + struct sensor_register *format_ctrl_regs; +}; + +struct pll_ctrl_reg { + unsigned int div; + unsigned char reg; +}; + +struct ov2659 { + struct v4l2_subdev sd; + struct media_pad pad; + struct v4l2_mbus_framefmt format; + unsigned int xvclk_frequency; + const struct ov2659_platform_data *pdata; + struct mutex lock; + struct i2c_client *client; + struct v4l2_ctrl_handler ctrls; + const struct ov2659_framesize *frame_size; + struct sensor_register *format_ctrl_regs; + struct ov2659_pll_ctrl pll; + int streaming; +}; + +static const struct sensor_register ov2659_init_regs[] = { + {REG_IO_CTRL00, 0x03}, + {REG_IO_CTRL01, 0xff}, + {REG_IO_CTRL02, 0xe0}, + {0x3633, 0x3d}, + {0x3620, 0x02}, + {0x3631, 0x11}, + {0x3612, 0x04}, + {0x3630, 0x20}, + {0x4702, 0x02}, + {0x370c, 0x34}, + {REG_TIMING_HS_H, 0x00}, + {REG_TIMING_HS_L, 0x00}, + {REG_TIMING_VS_H, 0x00}, + {REG_TIMING_VS_L, 0x00}, + {REG_TIMING_HW_H, 0x06}, + {REG_TIMING_HW_L, 0x5f}, + {REG_TIMING_VH_H, 0x04}, + {REG_TIMING_VH_L, 0xb7}, + {REG_TIMING_DVPHO_H, 0x03}, + {REG_TIMING_DVPHO_L, 0x20}, + {REG_TIMING_DVPVO_H, 0x02}, + {REG_TIMING_DVPVO_L, 0x58}, + {REG_TIMING_HTS_H, 0x05}, + {REG_TIMING_HTS_L, 0x14}, + {REG_TIMING_VTS_H, 0x02}, + {REG_TIMING_VTS_L, 0x68}, + {REG_TIMING_HOFFS_L, 0x08}, + {REG_TIMING_VOFFS_L, 0x02}, + {REG_TIMING_XINC, 0x31}, + {REG_TIMING_YINC, 0x31}, + {0x3a02, 0x02}, + {0x3a03, 0x68}, + {0x3a08, 0x00}, + {0x3a09, 0x5c}, + {0x3a0a, 0x00}, + {0x3a0b, 0x4d}, + {0x3a0d, 0x08}, + {0x3a0e, 0x06}, + {0x3a14, 0x02}, + {0x3a15, 0x28}, + {REG_DVP_CTRL02, 0x01}, + {0x3623, 0x00}, + {0x3634, 0x76}, + {0x3701, 0x44}, + {0x3702, 0x18}, + {0x3703, 0x24}, + {0x3704, 0x24}, + {0x3705, 0x0c}, + {REG_TIMING_VERT_FORMAT, 0x81}, + {REG_TIMING_HORIZ_FORMAT, 0x01}, + {0x370a, 0x52}, + {REG_VFIFO_READ_START_H, 0x00}, + {REG_VFIFO_READ_START_L, 0x80}, + {REG_FORMAT_CTRL00, 0x30}, + {0x5086, 0x02}, + {REG_ISP_CTRL00, 0xfb}, + {REG_ISP_CTRL01, 0x1f}, + {REG_ISP_CTRL02, 0x00}, + {0x5025, 0x0e}, + {0x5026, 0x18}, + {0x5027, 0x34}, + {0x5028, 0x4c}, + {0x5029, 0x62}, + {0x502a, 0x74}, + {0x502b, 0x85}, + {0x502c, 0x92}, + {0x502d, 0x9e}, + {0x502e, 0xb2}, + {0x502f, 0xc0}, + {0x5030, 0xcc}, + {0x5031, 0xe0}, + {0x5032, 0xee}, + {0x5033, 0xf6}, + {0x5034, 0x11}, + {0x5070, 0x1c}, + {0x5071, 0x5b}, + {0x5072, 0x05}, + {0x5073, 0x20}, + {0x5074, 0x94}, + {0x5075, 0xb4}, + {0x5076, 0xb4}, + {0x5077, 0xaf}, + {0x5078, 0x05}, + {REG_CMX_SIGN, 0x98}, + {REG_CMX_MISC_CTRL, 0x21}, + {REG_AWB_CTRL00, 0x6a}, + {REG_AWB_CTRL01, 0x11}, + {REG_AWB_CTRL02, 0x92}, + {REG_AWB_CTRL03, 0x21}, + {REG_AWB_CTRL04, 0xe1}, + {REG_AWB_LOCAL_LIMIT, 0x01}, + {0x503c, 0x05}, + {0x503d, 0x08}, + {0x503e, 0x08}, + {0x503f, 0x64}, + {0x5040, 0x58}, + {0x5041, 0x2a}, + {0x5042, 0xc5}, + {0x5043, 0x2e}, + {0x5044, 0x3a}, + {0x5045, 0x3c}, + {0x5046, 0x44}, + {0x5047, 0xf8}, + {0x5048, 0x08}, + {REG_AWB_CTRL12, 0x70}, + {REG_AWB_CTRL13, 0xf0}, + {REG_AWB_CTRL14, 0xf0}, + {REG_LENC_RED_X0_H, 0x03}, + {REG_LENC_RED_X0_L, 0x20}, + {REG_LENC_RED_Y0_H, 0x02}, + {REG_LENC_RED_Y0_L, 0x5c}, + {REG_LENC_RED_A1, 0x48}, + {REG_LENC_RED_B1, 0x00}, + {REG_LENC_RED_A2_B2, 0x66}, + {REG_LENC_GREEN_X0_H, 0x03}, + {REG_LENC_GREEN_X0_L, 0x30}, + {REG_LENC_GREEN_Y0_H, 0x02}, + {REG_LENC_GREEN_Y0_L, 0x7c}, + {REG_LENC_GREEN_A1, 0x40}, + {REG_LENC_GREEN_B1, 0x00}, + {REG_LENC_GREEN_A2_B2, 0x66}, + {REG_LENC_BLUE_X0_H, 0x03}, + {REG_LENC_BLUE_X0_L, 0x10}, + {REG_LENC_BLUE_Y0_H, 0x02}, + {REG_LENC_BLUE_Y0_L, 0x7c}, + {REG_LENC_BLUE_A1, 0x3a}, + {REG_LENC_BLUE_B1, 0x00}, + {REG_LENC_BLUE_A2_B2, 0x66}, + {REG_CIP_CTRL00, 0x44}, + {REG_SHARPENMT_THRESH1, 0x08}, + {REG_SHARPENMT_THRESH2, 0x10}, + {REG_SHARPENMT_OFFSET1, 0x12}, + {REG_SHARPENMT_OFFSET2, 0x02}, + {REG_SHARPEN_THRESH1, 0x08}, + {REG_SHARPEN_THRESH2, 0x10}, + {REG_CIP_CTRL01, 0xa6}, + {REG_DENOISE_THRESH1, 0x08}, + {REG_DENOISE_THRESH2, 0x10}, + {REG_DENOISE_OFFSET1, 0x04}, + {REG_DENOISE_OFFSET2, 0x12}, + {0x507e, 0x40}, + {0x507f, 0x20}, + {0x507b, 0x02}, + {REG_CMX_MISC_CTRL, 0x01}, + {0x5084, 0x0c}, + {0x5085, 0x3e}, + {0x5005, 0x80}, + {0x3a0f, 0x30}, + {0x3a10, 0x28}, + {0x3a1b, 0x32}, + {0x3a1e, 0x26}, + {0x3a11, 0x60}, + {0x3a1f, 0x14}, + {0x5060, 0x69}, + {0x5061, 0x7d}, + {0x5062, 0x7d}, + {0x5063, 0x69}, + {REG_NULL, 0x00} +}; + +/* 1280X720 720p */ +static struct sensor_register ov2659_720p[] = { + {REG_TIMING_HS_H, 0x00}, + {REG_TIMING_HS_L, 0xa0}, + {REG_TIMING_VS_H, 0x00}, + {REG_TIMING_VS_L, 0xf0}, + {REG_TIMING_HW_H, 0x05}, + {REG_TIMING_HW_L, 0xbf}, + {REG_TIMING_VH_H, 0x03}, + {REG_TIMING_VH_L, 0xcb}, + {REG_TIMING_DVPHO_H, 0x05}, + {REG_TIMING_DVPHO_L, 0x00}, + {REG_TIMING_DVPVO_H, 0x02}, + {REG_TIMING_DVPVO_L, 0xd0}, + {REG_TIMING_HTS_H, 0x06}, + {REG_TIMING_HTS_L, 0x4c}, + {REG_TIMING_VTS_H, 0x02}, + {REG_TIMING_VTS_L, 0xe8}, + {REG_TIMING_HOFFS_L, 0x10}, + {REG_TIMING_VOFFS_L, 0x06}, + {REG_TIMING_XINC, 0x11}, + {REG_TIMING_YINC, 0x11}, + {REG_TIMING_VERT_FORMAT, 0x80}, + {REG_TIMING_HORIZ_FORMAT, 0x00}, + {0x3a03, 0xe8}, + {0x3a09, 0x6f}, + {0x3a0b, 0x5d}, + {0x3a15, 0x9a}, + {REG_NULL, 0x00} +}; + +/* 1600X1200 UXGA */ +static struct sensor_register ov2659_uxga[] = { + {REG_TIMING_HS_H, 0x00}, + {REG_TIMING_HS_L, 0x00}, + {REG_TIMING_VS_H, 0x00}, + {REG_TIMING_VS_L, 0x00}, + {REG_TIMING_HW_H, 0x06}, + {REG_TIMING_HW_L, 0x5f}, + {REG_TIMING_VH_H, 0x04}, + {REG_TIMING_VH_L, 0xbb}, + {REG_TIMING_DVPHO_H, 0x06}, + {REG_TIMING_DVPHO_L, 0x40}, + {REG_TIMING_DVPVO_H, 0x04}, + {REG_TIMING_DVPVO_L, 0xb0}, + {REG_TIMING_HTS_H, 0x07}, + {REG_TIMING_HTS_L, 0x9f}, + {REG_TIMING_VTS_H, 0x04}, + {REG_TIMING_VTS_L, 0xd0}, + {REG_TIMING_HOFFS_L, 0x10}, + {REG_TIMING_VOFFS_L, 0x06}, + {REG_TIMING_XINC, 0x11}, + {REG_TIMING_YINC, 0x11}, + {0x3a02, 0x04}, + {0x3a03, 0xd0}, + {0x3a08, 0x00}, + {0x3a09, 0xb8}, + {0x3a0a, 0x00}, + {0x3a0b, 0x9a}, + {0x3a0d, 0x08}, + {0x3a0e, 0x06}, + {0x3a14, 0x04}, + {0x3a15, 0x50}, + {0x3623, 0x00}, + {0x3634, 0x44}, + {0x3701, 0x44}, + {0x3702, 0x30}, + {0x3703, 0x48}, + {0x3704, 0x48}, + {0x3705, 0x18}, + {REG_TIMING_VERT_FORMAT, 0x80}, + {REG_TIMING_HORIZ_FORMAT, 0x00}, + {0x370a, 0x12}, + {REG_VFIFO_READ_START_H, 0x00}, + {REG_VFIFO_READ_START_L, 0x80}, + {REG_ISP_CTRL02, 0x00}, + {REG_NULL, 0x00} +}; + +/* 1280X1024 SXGA */ +static struct sensor_register ov2659_sxga[] = { + {REG_TIMING_HS_H, 0x00}, + {REG_TIMING_HS_L, 0x00}, + {REG_TIMING_VS_H, 0x00}, + {REG_TIMING_VS_L, 0x00}, + {REG_TIMING_HW_H, 0x06}, + {REG_TIMING_HW_L, 0x5f}, + {REG_TIMING_VH_H, 0x04}, + {REG_TIMING_VH_L, 0xb7}, + {REG_TIMING_DVPHO_H, 0x05}, + {REG_TIMING_DVPHO_L, 0x00}, + {REG_TIMING_DVPVO_H, 0x04}, + {REG_TIMING_DVPVO_L, 0x00}, + {REG_TIMING_HTS_H, 0x07}, + {REG_TIMING_HTS_L, 0x9c}, + {REG_TIMING_VTS_H, 0x04}, + {REG_TIMING_VTS_L, 0xd0}, + {REG_TIMING_HOFFS_L, 0x10}, + {REG_TIMING_VOFFS_L, 0x06}, + {REG_TIMING_XINC, 0x11}, + {REG_TIMING_YINC, 0x11}, + {0x3a02, 0x02}, + {0x3a03, 0x68}, + {0x3a08, 0x00}, + {0x3a09, 0x5c}, + {0x3a0a, 0x00}, + {0x3a0b, 0x4d}, + {0x3a0d, 0x08}, + {0x3a0e, 0x06}, + {0x3a14, 0x02}, + {0x3a15, 0x28}, + {0x3623, 0x00}, + {0x3634, 0x76}, + {0x3701, 0x44}, + {0x3702, 0x18}, + {0x3703, 0x24}, + {0x3704, 0x24}, + {0x3705, 0x0c}, + {REG_TIMING_VERT_FORMAT, 0x80}, + {REG_TIMING_HORIZ_FORMAT, 0x00}, + {0x370a, 0x52}, + {REG_VFIFO_READ_START_H, 0x00}, + {REG_VFIFO_READ_START_L, 0x80}, + {REG_ISP_CTRL02, 0x00}, + {REG_NULL, 0x00} +}; + +/* 1024X768 SXGA */ +static struct sensor_register ov2659_xga[] = { + {REG_TIMING_HS_H, 0x00}, + {REG_TIMING_HS_L, 0x00}, + {REG_TIMING_VS_H, 0x00}, + {REG_TIMING_VS_L, 0x00}, + {REG_TIMING_HW_H, 0x06}, + {REG_TIMING_HW_L, 0x5f}, + {REG_TIMING_VH_H, 0x04}, + {REG_TIMING_VH_L, 0xb7}, + {REG_TIMING_DVPHO_H, 0x04}, + {REG_TIMING_DVPHO_L, 0x00}, + {REG_TIMING_DVPVO_H, 0x03}, + {REG_TIMING_DVPVO_L, 0x00}, + {REG_TIMING_HTS_H, 0x07}, + {REG_TIMING_HTS_L, 0x9c}, + {REG_TIMING_VTS_H, 0x04}, + {REG_TIMING_VTS_L, 0xd0}, + {REG_TIMING_HOFFS_L, 0x10}, + {REG_TIMING_VOFFS_L, 0x06}, + {REG_TIMING_XINC, 0x11}, + {REG_TIMING_YINC, 0x11}, + {0x3a02, 0x02}, + {0x3a03, 0x68}, + {0x3a08, 0x00}, + {0x3a09, 0x5c}, + {0x3a0a, 0x00}, + {0x3a0b, 0x4d}, + {0x3a0d, 0x08}, + {0x3a0e, 0x06}, + {0x3a14, 0x02}, + {0x3a15, 0x28}, + {0x3623, 0x00}, + {0x3634, 0x76}, + {0x3701, 0x44}, + {0x3702, 0x18}, + {0x3703, 0x24}, + {0x3704, 0x24}, + {0x3705, 0x0c}, + {REG_TIMING_VERT_FORMAT, 0x80}, + {REG_TIMING_HORIZ_FORMAT, 0x00}, + {0x370a, 0x52}, + {REG_VFIFO_READ_START_H, 0x00}, + {REG_VFIFO_READ_START_L, 0x80}, + {REG_ISP_CTRL02, 0x00}, + {REG_NULL, 0x00} +}; + +/* 800X600 SVGA */ +static struct sensor_register ov2659_svga[] = { + {REG_TIMING_HS_H, 0x00}, + {REG_TIMING_HS_L, 0x00}, + {REG_TIMING_VS_H, 0x00}, + {REG_TIMING_VS_L, 0x00}, + {REG_TIMING_HW_H, 0x06}, + {REG_TIMING_HW_L, 0x5f}, + {REG_TIMING_VH_H, 0x04}, + {REG_TIMING_VH_L, 0xb7}, + {REG_TIMING_DVPHO_H, 0x03}, + {REG_TIMING_DVPHO_L, 0x20}, + {REG_TIMING_DVPVO_H, 0x02}, + {REG_TIMING_DVPVO_L, 0x58}, + {REG_TIMING_HTS_H, 0x05}, + {REG_TIMING_HTS_L, 0x14}, + {REG_TIMING_VTS_H, 0x02}, + {REG_TIMING_VTS_L, 0x68}, + {REG_TIMING_HOFFS_L, 0x08}, + {REG_TIMING_VOFFS_L, 0x02}, + {REG_TIMING_XINC, 0x31}, + {REG_TIMING_YINC, 0x31}, + {0x3a02, 0x02}, + {0x3a03, 0x68}, + {0x3a08, 0x00}, + {0x3a09, 0x5c}, + {0x3a0a, 0x00}, + {0x3a0b, 0x4d}, + {0x3a0d, 0x08}, + {0x3a0e, 0x06}, + {0x3a14, 0x02}, + {0x3a15, 0x28}, + {0x3623, 0x00}, + {0x3634, 0x76}, + {0x3701, 0x44}, + {0x3702, 0x18}, + {0x3703, 0x24}, + {0x3704, 0x24}, + {0x3705, 0x0c}, + {REG_TIMING_VERT_FORMAT, 0x81}, + {REG_TIMING_HORIZ_FORMAT, 0x01}, + {0x370a, 0x52}, + {REG_VFIFO_READ_START_H, 0x00}, + {REG_VFIFO_READ_START_L, 0x80}, + {REG_ISP_CTRL02, 0x00}, + {REG_NULL, 0x00} +}; + +/* 640X480 VGA */ +static struct sensor_register ov2659_vga[] = { + {REG_TIMING_HS_H, 0x00}, + {REG_TIMING_HS_L, 0x00}, + {REG_TIMING_VS_H, 0x00}, + {REG_TIMING_VS_L, 0x00}, + {REG_TIMING_HW_H, 0x06}, + {REG_TIMING_HW_L, 0x5f}, + {REG_TIMING_VH_H, 0x04}, + {REG_TIMING_VH_L, 0xb7}, + {REG_TIMING_DVPHO_H, 0x02}, + {REG_TIMING_DVPHO_L, 0x80}, + {REG_TIMING_DVPVO_H, 0x01}, + {REG_TIMING_DVPVO_L, 0xe0}, + {REG_TIMING_HTS_H, 0x05}, + {REG_TIMING_HTS_L, 0x14}, + {REG_TIMING_VTS_H, 0x02}, + {REG_TIMING_VTS_L, 0x68}, + {REG_TIMING_HOFFS_L, 0x08}, + {REG_TIMING_VOFFS_L, 0x02}, + {REG_TIMING_XINC, 0x31}, + {REG_TIMING_YINC, 0x31}, + {0x3a02, 0x02}, + {0x3a03, 0x68}, + {0x3a08, 0x00}, + {0x3a09, 0x5c}, + {0x3a0a, 0x00}, + {0x3a0b, 0x4d}, + {0x3a0d, 0x08}, + {0x3a0e, 0x06}, + {0x3a14, 0x02}, + {0x3a15, 0x28}, + {0x3623, 0x00}, + {0x3634, 0x76}, + {0x3701, 0x44}, + {0x3702, 0x18}, + {0x3703, 0x24}, + {0x3704, 0x24}, + {0x3705, 0x0c}, + {REG_TIMING_VERT_FORMAT, 0x81}, + {REG_TIMING_HORIZ_FORMAT, 0x01}, + {0x370a, 0x52}, + {REG_VFIFO_READ_START_H, 0x00}, + {REG_VFIFO_READ_START_L, 0x80}, + {REG_ISP_CTRL02, 0x10}, + {REG_NULL, 0x00} +}; + +/* 320X240 QVGA */ +static struct sensor_register ov2659_qvga[] = { + {REG_TIMING_HS_H, 0x00}, + {REG_TIMING_HS_L, 0x00}, + {REG_TIMING_VS_H, 0x00}, + {REG_TIMING_VS_L, 0x00}, + {REG_TIMING_HW_H, 0x06}, + {REG_TIMING_HW_L, 0x5f}, + {REG_TIMING_VH_H, 0x04}, + {REG_TIMING_VH_L, 0xb7}, + {REG_TIMING_DVPHO_H, 0x01}, + {REG_TIMING_DVPHO_L, 0x40}, + {REG_TIMING_DVPVO_H, 0x00}, + {REG_TIMING_DVPVO_L, 0xf0}, + {REG_TIMING_HTS_H, 0x05}, + {REG_TIMING_HTS_L, 0x14}, + {REG_TIMING_VTS_H, 0x02}, + {REG_TIMING_VTS_L, 0x68}, + {REG_TIMING_HOFFS_L, 0x08}, + {REG_TIMING_VOFFS_L, 0x02}, + {REG_TIMING_XINC, 0x31}, + {REG_TIMING_YINC, 0x31}, + {0x3a02, 0x02}, + {0x3a03, 0x68}, + {0x3a08, 0x00}, + {0x3a09, 0x5c}, + {0x3a0a, 0x00}, + {0x3a0b, 0x4d}, + {0x3a0d, 0x08}, + {0x3a0e, 0x06}, + {0x3a14, 0x02}, + {0x3a15, 0x28}, + {0x3623, 0x00}, + {0x3634, 0x76}, + {0x3701, 0x44}, + {0x3702, 0x18}, + {0x3703, 0x24}, + {0x3704, 0x24}, + {0x3705, 0x0c}, + {REG_TIMING_VERT_FORMAT, 0x81}, + {REG_TIMING_HORIZ_FORMAT, 0x01}, + {0x370a, 0x52}, + {REG_VFIFO_READ_START_H, 0x00}, + {REG_VFIFO_READ_START_L, 0x80}, + {REG_ISP_CTRL02, 0x10}, + {REG_NULL, 0x00} +}; + +static const struct pll_ctrl_reg ctrl3[] = { + {1, 0x00}, + {2, 0x02}, + {3, 0x03}, + {4, 0x06}, + {6, 0x0d}, + {8, 0x0e}, + {12, 0x0f}, + {16, 0x12}, + {24, 0x13}, + {32, 0x16}, + {48, 0x1b}, + {64, 0x1e}, + {96, 0x1f}, + {0, 0x00}, +}; + +static const struct pll_ctrl_reg ctrl1[] = { + {2, 0x10}, + {4, 0x20}, + {6, 0x30}, + {8, 0x40}, + {10, 0x50}, + {12, 0x60}, + {14, 0x70}, + {16, 0x80}, + {18, 0x90}, + {20, 0xa0}, + {22, 0xb0}, + {24, 0xc0}, + {26, 0xd0}, + {28, 0xe0}, + {30, 0xf0}, + {0, 0x00}, +}; + +static const struct ov2659_framesize ov2659_framesizes[] = { + { /* QVGA */ + .width = 320, + .height = 240, + .regs = ov2659_qvga, + .max_exp_lines = 248, + }, { /* VGA */ + .width = 640, + .height = 480, + .regs = ov2659_vga, + .max_exp_lines = 498, + }, { /* SVGA */ + .width = 800, + .height = 600, + .regs = ov2659_svga, + .max_exp_lines = 498, + }, { /* XGA */ + .width = 1024, + .height = 768, + .regs = ov2659_xga, + .max_exp_lines = 498, + }, { /* 720P */ + .width = 1280, + .height = 720, + .regs = ov2659_720p, + .max_exp_lines = 498, + }, { /* SXGA */ + .width = 1280, + .height = 1024, + .regs = ov2659_sxga, + .max_exp_lines = 1048, + }, { /* UXGA */ + .width = 1600, + .height = 1200, + .regs = ov2659_uxga, + .max_exp_lines = 498, + }, +}; + +/* YUV422 YUYV*/ +static struct sensor_register ov2659_format_yuyv[] = { + {REG_FORMAT_CTRL00, 0x30}, + {REG_NULL, 0x0}, +}; + +/* YUV422 UYVY */ +static struct sensor_register ov2659_format_uyvy[] = { + {REG_FORMAT_CTRL00, 0x32}, + {REG_NULL, 0x0}, +}; + +/* Raw Bayer BGGR */ +static struct sensor_register ov2659_format_bggr[] = { + {REG_FORMAT_CTRL00, 0x00}, + {REG_NULL, 0x0} +}; + +/* RGB565 */ +static struct sensor_register ov2659_format_rgb565[] = { + {REG_FORMAT_CTRL00, 0x60}, + {REG_NULL, 0x0}, +}; + +static const struct ov2659_pixfmt ov2659_formats[] = { + { + .code = MEDIA_BUS_FMT_YUYV8_2X8, + .colorspace = V4L2_COLORSPACE_JPEG, + .format_ctrl_regs = ov2659_format_yuyv, + }, + { + .code = MEDIA_BUS_FMT_UYVY8_2X8, + .colorspace = V4L2_COLORSPACE_JPEG, + .format_ctrl_regs = ov2659_format_uyvy, + }, + { + .code = MEDIA_BUS_FMT_RGB565_2X8_BE, + .colorspace = V4L2_COLORSPACE_JPEG, + .format_ctrl_regs = ov2659_format_rgb565, + }, + { + .code = MEDIA_BUS_FMT_SBGGR8_1X8, + .colorspace = V4L2_COLORSPACE_SMPTE170M, + .format_ctrl_regs = ov2659_format_bggr, + }, +}; + +static inline struct ov2659 *to_ov2659(struct v4l2_subdev *sd) +{ + return container_of(sd, struct ov2659, sd); +} + +/* sensor register write */ +static int ov2659_write(struct i2c_client *client, u16 reg, u8 val) +{ + struct i2c_msg msg; + u8 buf[3]; + int ret; + + buf[0] = reg >> 8; + buf[1] = reg & 0xFF; + buf[2] = val; + + msg.addr = client->addr; + msg.flags = client->flags; + msg.buf = buf; + msg.len = sizeof(buf); + + ret = i2c_transfer(client->adapter, &msg, 1); + if (ret >= 0) + return 0; + + dev_dbg(&client->dev, + "ov2659 write reg(0x%x val:0x%x) failed !\n", reg, val); + + return ret; +} + +/* sensor register read */ +static int ov2659_read(struct i2c_client *client, u16 reg, u8 *val) +{ + struct i2c_msg msg[2]; + u8 buf[2]; + int ret; + + buf[0] = reg >> 8; + buf[1] = reg & 0xFF; + + msg[0].addr = client->addr; + msg[0].flags = client->flags; + msg[0].buf = buf; + msg[0].len = sizeof(buf); + + msg[1].addr = client->addr; + msg[1].flags = client->flags | I2C_M_RD; + msg[1].buf = buf; + msg[1].len = 1; + + ret = i2c_transfer(client->adapter, msg, 2); + if (ret >= 0) { + *val = buf[0]; + return 0; + } + + dev_dbg(&client->dev, + "ov2659 read reg(0x%x val:0x%x) failed !\n", reg, *val); + + return ret; +} + +static int ov2659_write_array(struct i2c_client *client, + const struct sensor_register *regs) +{ + int i, ret = 0; + + for (i = 0; ret == 0 && regs[i].addr; i++) + ret = ov2659_write(client, regs[i].addr, regs[i].value); + + return ret; +} + +static unsigned int ov2659_pll_calc_params(struct ov2659 *ov2659) +{ + const struct ov2659_platform_data *pdata = ov2659->pdata; + u8 ctrl1_reg = 0, ctrl2_reg = 0, ctrl3_reg = 0; + struct i2c_client *client = ov2659->client; + unsigned int desired = pdata->link_frequency; + u32 s_prediv = 1, s_postdiv = 1, s_mult = 1; + u32 prediv, postdiv, mult; + u32 bestdelta = -1; + u32 delta, actual; + int i, j; + + for (i = 0; ctrl1[i].div != 0; i++) { + postdiv = ctrl1[i].div; + for (j = 0; ctrl3[j].div != 0; j++) { + prediv = ctrl3[j].div; + for (mult = 1; mult <= 63; mult++) { + actual = ov2659->xvclk_frequency; + actual *= mult; + actual /= prediv; + actual /= postdiv; + delta = actual - desired; + delta = abs(delta); + + if ((delta < bestdelta) || (bestdelta == -1)) { + bestdelta = delta; + s_mult = mult; + s_prediv = prediv; + s_postdiv = postdiv; + ctrl1_reg = ctrl1[i].reg; + ctrl2_reg = mult; + ctrl3_reg = ctrl3[j].reg; + } + } + } + } + actual = ov2659->xvclk_frequency * s_mult; + actual /= s_prediv * s_postdiv; + + dev_dbg(&client->dev, "Actual osc: %u pixel_clock: %u\n", + ov2659->xvclk_frequency, actual); + + ov2659->pll.ctrl1 = ctrl1_reg; + ov2659->pll.ctrl2 = ctrl2_reg; + ov2659->pll.ctrl3 = ctrl3_reg; + + dev_dbg(&client->dev, + "Actual reg config: ctrl1_reg: %02x ctrl2_reg: %02x ctrl3_reg: %02x\n", + ctrl1_reg, ctrl2_reg, ctrl3_reg); + + return actual; +} + +static int ov2659_set_pixel_clock(struct ov2659 *ov2659) +{ + struct i2c_client *client = ov2659->client; + struct sensor_register pll_regs[] = { + {REG_SC_PLL_CTRL1, ov2659->pll.ctrl1}, + {REG_SC_PLL_CTRL2, ov2659->pll.ctrl2}, + {REG_SC_PLL_CTRL3, ov2659->pll.ctrl3}, + {REG_NULL, 0x00}, + }; + + dev_dbg(&client->dev, "%s\n", __func__); + + return ov2659_write_array(client, pll_regs); +}; + +static void ov2659_get_default_format(struct v4l2_mbus_framefmt *format) +{ + format->width = ov2659_framesizes[2].width; + format->height = ov2659_framesizes[2].height; + format->colorspace = ov2659_formats[0].colorspace; + format->code = ov2659_formats[0].code; + format->field = V4L2_FIELD_NONE; +} + +static void ov2659_set_streaming(struct ov2659 *ov2659, int on) +{ + struct i2c_client *client = ov2659->client; + int ret; + + on = !!on; + + dev_dbg(&client->dev, "%s: on: %d\n", __func__, on); + + ret = ov2659_write(client, REG_SOFTWARE_STANDBY, on); + if (ret) + dev_err(&client->dev, "ov2659 soft standby failed\n"); +} + +static int ov2659_init(struct v4l2_subdev *sd, u32 val) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + return ov2659_write_array(client, ov2659_init_regs); +} + +/* + * V4L2 subdev video and pad level operations + */ + +static int ov2659_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + dev_dbg(&client->dev, "%s:\n", __func__); + + if (code->index >= ARRAY_SIZE(ov2659_formats)) + return -EINVAL; + + code->code = ov2659_formats[code->index].code; + + return 0; +} + +static int ov2659_enum_frame_sizes(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_frame_size_enum *fse) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int i = ARRAY_SIZE(ov2659_formats); + + dev_dbg(&client->dev, "%s:\n", __func__); + + if (fse->index >= ARRAY_SIZE(ov2659_framesizes)) + return -EINVAL; + + while (--i) + if (fse->code == ov2659_formats[i].code) + break; + + fse->code = ov2659_formats[i].code; + + fse->min_width = ov2659_framesizes[fse->index].width; + fse->max_width = fse->min_width; + fse->max_height = ov2659_framesizes[fse->index].height; + fse->min_height = fse->max_height; + + return 0; +} + +static int ov2659_get_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov2659 *ov2659 = to_ov2659(sd); + struct v4l2_mbus_framefmt *mf; + + dev_dbg(&client->dev, "ov2659_get_fmt\n"); + + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { + mf = v4l2_subdev_get_try_format(sd, cfg, 0); + mutex_lock(&ov2659->lock); + fmt->format = *mf; + mutex_unlock(&ov2659->lock); + return 0; + } + + mutex_lock(&ov2659->lock); + fmt->format = ov2659->format; + mutex_unlock(&ov2659->lock); + + dev_dbg(&client->dev, "ov2659_get_fmt: %x %dx%d\n", + ov2659->format.code, ov2659->format.width, + ov2659->format.height); + + return 0; +} + +static void __ov2659_try_frame_size(struct v4l2_mbus_framefmt *mf, + const struct ov2659_framesize **size) +{ + const struct ov2659_framesize *fsize = &ov2659_framesizes[0]; + const struct ov2659_framesize *match = NULL; + int i = ARRAY_SIZE(ov2659_framesizes); + unsigned int min_err = UINT_MAX; + + while (i--) { + int err = abs(fsize->width - mf->width) + + abs(fsize->height - mf->height); + if ((err < min_err) && (fsize->regs[0].addr)) { + min_err = err; + match = fsize; + } + fsize++; + } + + if (!match) + match = &ov2659_framesizes[2]; + + mf->width = match->width; + mf->height = match->height; + + if (size) + *size = match; +} + +static int ov2659_set_fmt(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + unsigned int index = ARRAY_SIZE(ov2659_formats); + struct v4l2_mbus_framefmt *mf = &fmt->format; + const struct ov2659_framesize *size = NULL; + struct ov2659 *ov2659 = to_ov2659(sd); + + dev_dbg(&client->dev, "ov2659_set_fmt\n"); + + __ov2659_try_frame_size(mf, &size); + + while (--index >= 0) + if (ov2659_formats[index].code == mf->code) + break; + + if (index < 0) + return -EINVAL; + + mf->colorspace = V4L2_COLORSPACE_JPEG; + mf->code = ov2659_formats[index].code; + mf->field = V4L2_FIELD_NONE; + + mutex_lock(&ov2659->lock); + + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { + mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); + *mf = fmt->format; + } else { + if (ov2659->streaming) { + mutex_unlock(&ov2659->lock); + return -EBUSY; + } + + ov2659->frame_size = size; + ov2659->format = fmt->format; + ov2659->format_ctrl_regs = + ov2659_formats[index].format_ctrl_regs; + } + + mutex_unlock(&ov2659->lock); + return 0; +} + +static int ov2659_set_frame_size(struct ov2659 *ov2659) +{ + struct i2c_client *client = ov2659->client; + + dev_dbg(&client->dev, "%s\n", __func__); + + return ov2659_write_array(ov2659->client, ov2659->frame_size->regs); +} + +static int ov2659_set_format(struct ov2659 *ov2659) +{ + struct i2c_client *client = ov2659->client; + + dev_dbg(&client->dev, "%s\n", __func__); + + return ov2659_write_array(ov2659->client, ov2659->format_ctrl_regs); +} + +static int ov2659_s_stream(struct v4l2_subdev *sd, int on) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov2659 *ov2659 = to_ov2659(sd); + int ret = 0; + + dev_dbg(&client->dev, "%s: on: %d\n", __func__, on); + + mutex_lock(&ov2659->lock); + + on = !!on; + + if (ov2659->streaming == on) + goto unlock; + + if (!on) { + /* Stop Streaming Sequence */ + ov2659_set_streaming(ov2659, 0); + ov2659->streaming = on; + goto unlock; + } + + ov2659_set_pixel_clock(ov2659); + ov2659_set_frame_size(ov2659); + ov2659_set_format(ov2659); + ov2659_set_streaming(ov2659, 1); + ov2659->streaming = on; + +unlock: + mutex_unlock(&ov2659->lock); + return ret; +} + +static int ov2659_set_test_pattern(struct ov2659 *ov2659, int value) +{ + struct i2c_client *client = v4l2_get_subdevdata(&ov2659->sd); + int ret; + u8 val; + + ret = ov2659_read(client, REG_PRE_ISP_CTRL00, &val); + if (ret < 0) + return ret; + + switch (value) { + case 0: + val &= ~TEST_PATTERN_ENABLE; + break; + case 1: + val &= VERTICAL_COLOR_BAR_MASK; + val |= TEST_PATTERN_ENABLE; + break; + } + + return ov2659_write(client, REG_PRE_ISP_CTRL00, val); +} + +static int ov2659_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct ov2659 *ov2659 = + container_of(ctrl->handler, struct ov2659, ctrls); + + if (ctrl->flags & V4L2_CTRL_FLAG_INACTIVE) + return 0; + + switch (ctrl->id) { + case V4L2_CID_TEST_PATTERN: + return ov2659_set_test_pattern(ov2659, ctrl->val); + } + return 0; +} + +static struct v4l2_ctrl_ops ov2659_ctrl_ops = { + .s_ctrl = ov2659_s_ctrl, +}; + +static const char * const ov2659_test_pattern_menu[] = { + "Disabled", + "Vertical Color Bars", +}; + +/* ----------------------------------------------------------------------------- + * V4L2 subdev internal operations + */ + +static int ov2659_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct v4l2_mbus_framefmt *format = + v4l2_subdev_get_try_format(sd, fh->pad, 0); + + dev_dbg(&client->dev, "%s:\n", __func__); + + ov2659_get_default_format(format); + + return 0; +} + +static const struct v4l2_subdev_core_ops ov2659_subdev_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 ov2659_subdev_video_ops = { + .s_stream = ov2659_s_stream, +}; + +static const struct v4l2_subdev_pad_ops ov2659_subdev_pad_ops = { + .enum_mbus_code = ov2659_enum_mbus_code, + .enum_frame_size = ov2659_enum_frame_sizes, + .get_fmt = ov2659_get_fmt, + .set_fmt = ov2659_set_fmt, +}; + +static const struct v4l2_subdev_ops ov2659_subdev_ops = { + .core = &ov2659_subdev_core_ops, + .video = &ov2659_subdev_video_ops, + .pad = &ov2659_subdev_pad_ops, +}; + +static const struct v4l2_subdev_internal_ops ov2659_subdev_internal_ops = { + .open = ov2659_open, +}; + +static int ov2659_detect(struct v4l2_subdev *sd) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + u8 pid, ver; + int ret; + + dev_dbg(&client->dev, "%s:\n", __func__); + + ret = ov2659_write(client, REG_SOFTWARE_RESET, 0x01); + if (ret != 0) { + dev_err(&client->dev, "Sensor soft reset failed\n"); + return -ENODEV; + } + usleep_range(1000, 2000); + + ret = ov2659_init(sd, 0); + if (ret < 0) + return ret; + + /* Check sensor revision */ + ret = ov2659_read(client, REG_SC_CHIP_ID_H, &pid); + if (!ret) + ret = ov2659_read(client, REG_SC_CHIP_ID_L, &ver); + + if (!ret) { + unsigned short id; + + id = OV265X_ID(pid, ver); + if (id != OV2659_ID) + dev_err(&client->dev, + "Sensor detection failed (%04X, %d)\n", + id, ret); + else + dev_info(&client->dev, "Found OV%04X sensor\n", id); + } + + return ret; +} + +static struct ov2659_platform_data * +ov2659_get_pdata(struct i2c_client *client) +{ + struct ov2659_platform_data *pdata; + struct device_node *endpoint; + int ret; + + if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node) { + dev_err(&client->dev, "ov2659_get_pdata: DT Node found\n"); + return client->dev.platform_data; + } + + endpoint = of_graph_get_next_endpoint(client->dev.of_node, NULL); + if (!endpoint) + return NULL; + + pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + goto done; + + ret = of_property_read_u64(endpoint, "link-frequencies", + &pdata->link_frequency); + if (ret) { + dev_err(&client->dev, "link-frequencies property not found\n"); + pdata = NULL; + } + +done: + of_node_put(endpoint); + return pdata; +} + +static int ov2659_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + const struct ov2659_platform_data *pdata = ov2659_get_pdata(client); + struct v4l2_subdev *sd; + struct ov2659 *ov2659; + struct clk *clk; + int ret; + + if (!pdata) { + dev_err(&client->dev, "platform data not specified\n"); + return -EINVAL; + } + + ov2659 = devm_kzalloc(&client->dev, sizeof(*ov2659), GFP_KERNEL); + if (!ov2659) + return -ENOMEM; + + ov2659->pdata = pdata; + ov2659->client = client; + + clk = devm_clk_get(&client->dev, "xvclk"); + if (IS_ERR(clk)) + return PTR_ERR(clk); + + ov2659->xvclk_frequency = clk_get_rate(clk); + if (ov2659->xvclk_frequency < 6000000 || + ov2659->xvclk_frequency > 27000000) + return -EINVAL; + + v4l2_ctrl_handler_init(&ov2659->ctrls, 2); + v4l2_ctrl_new_std(&ov2659->ctrls, &ov2659_ctrl_ops, + V4L2_CID_PIXEL_RATE, ov2659->xvclk_frequency, + ov2659->xvclk_frequency, 1, ov2659->xvclk_frequency); + v4l2_ctrl_new_std_menu_items(&ov2659->ctrls, &ov2659_ctrl_ops, + V4L2_CID_TEST_PATTERN, + ARRAY_SIZE(ov2659_test_pattern_menu) - 1, + 0, 0, ov2659_test_pattern_menu); + ov2659->sd.ctrl_handler = &ov2659->ctrls; + + if (ov2659->ctrls.error) { + dev_err(&client->dev, "%s: control initialization error %d\n", + __func__, ov2659->ctrls.error); + return ov2659->ctrls.error; + } + + sd = &ov2659->sd; + client->flags |= I2C_CLIENT_SCCB; + v4l2_i2c_subdev_init(sd, client, &ov2659_subdev_ops); + + sd->internal_ops = &ov2659_subdev_internal_ops; + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | + V4L2_SUBDEV_FL_HAS_EVENTS; + +#if defined(CONFIG_MEDIA_CONTROLLER) + ov2659->pad.flags = MEDIA_PAD_FL_SOURCE; + sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; + ret = media_entity_init(&sd->entity, 1, &ov2659->pad, 0); + if (ret < 0) { + v4l2_ctrl_handler_free(&ov2659->ctrls); + return ret; + } +#endif + + mutex_init(&ov2659->lock); + + ov2659_get_default_format(&ov2659->format); + ov2659->frame_size = &ov2659_framesizes[2]; + ov2659->format_ctrl_regs = ov2659_formats[0].format_ctrl_regs; + + ret = ov2659_detect(sd); + if (ret < 0) + goto error; + + /* Calculate the PLL register value needed */ + ov2659_pll_calc_params(ov2659); + + ret = v4l2_async_register_subdev(&ov2659->sd); + if (ret) + goto error; + + dev_info(&client->dev, "%s sensor driver registered !!\n", sd->name); + + return 0; + +error: + v4l2_ctrl_handler_free(&ov2659->ctrls); +#if defined(CONFIG_MEDIA_CONTROLLER) + media_entity_cleanup(&sd->entity); +#endif + mutex_destroy(&ov2659->lock); + return ret; +} + +static int ov2659_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct ov2659 *ov2659 = to_ov2659(sd); + + v4l2_ctrl_handler_free(&ov2659->ctrls); + v4l2_async_unregister_subdev(sd); +#if defined(CONFIG_MEDIA_CONTROLLER) + media_entity_cleanup(&sd->entity); +#endif + mutex_destroy(&ov2659->lock); + + return 0; +} + +static const struct i2c_device_id ov2659_id[] = { + { "ov2659", 0 }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(i2c, ov2659_id); + +#if IS_ENABLED(CONFIG_OF) +static const struct of_device_id ov2659_of_match[] = { + { .compatible = "ovti,ov2659", }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, ov2659_of_match); +#endif + +static struct i2c_driver ov2659_i2c_driver = { + .driver = { + .name = DRIVER_NAME, + .of_match_table = of_match_ptr(ov2659_of_match), + }, + .probe = ov2659_probe, + .remove = ov2659_remove, + .id_table = ov2659_id, +}; + +module_i2c_driver(ov2659_i2c_driver); + +MODULE_AUTHOR("Benoit Parrot <bparrot@xxxxxx>"); +MODULE_DESCRIPTION("OV2659 CMOS Image Sensor driver"); +MODULE_LICENSE("GPL v2"); diff --git a/include/media/ov2659.h b/include/media/ov2659.h new file mode 100644 index 0000000..8f184a2 --- /dev/null +++ b/include/media/ov2659.h @@ -0,0 +1,33 @@ +/* + * Omnivision OV2659 CMOS Image Sensor driver + * + * Copyright (C) 2015 Texas Instruments, Inc. + * + * Benoit Parrot <bparrot@xxxxxx> + * Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx> + * + * This program is free software; you may redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef OV2659_H +#define OV2659_H + +/** + * struct ov2659_platform_data - ov2659 driver platform data + * @link_frequency: target pixel clock frequency + */ +struct ov2659_platform_data { + s64 link_frequency; +}; +#endif /* OV2659_H */ -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
