--- /dev/null
+/*
+ * Omnivision OV2659 CMOS Image Sensor driver
+ *
+ * Copyright (C) 2015 Texas Instruments, Inc.
+ *
+ * Benoit Parrot <bparrot@ti.com>
+ * Lad, Prabhakar <prabhakar.csengg@gmail.com>
+ *
+ * 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;
+ /* 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;
+ struct v4l2_ctrl *link_frequency;
+ 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,
+ .format_ctrl_regs = ov2659_format_yuyv,
+ }, {
+ .code = MEDIA_BUS_FMT_UYVY8_2X8,
+ .format_ctrl_regs = ov2659_format_uyvy,
+ }, {
+ .code = MEDIA_BUS_FMT_RGB565_2X8_BE,
+ .format_ctrl_regs = ov2659_format_rgb565,
+ }, {
+ .code = MEDIA_BUS_FMT_SBGGR8_1X8,
+ .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 void 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;
+ }
+ }
+ }
+ }
+
+ 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);
+}
+
+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 = V4L2_COLORSPACE_SRGB;
+ 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);
+ int ret = 0;
+
+ 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_SRGB;
+ 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 {
+ s64 val;
+
+ 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;
+
+ if (ov2659->format.code != MEDIA_BUS_FMT_SBGGR8_1X8)
+ val = ov2659->pdata->link_frequency / 2;
+ else
+ val = ov2659->pdata->link_frequency;
+
+ ret = v4l2_ctrl_s_ctrl_int64(ov2659->link_frequency, val);
+ if (ret < 0)
+ dev_warn(&client->dev,
+ "failed to set link_frequency rate (%d)\n",
+ ret);
+ }
+
+ mutex_unlock(&ov2659->lock);
+ return ret;
+}
+
+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);
+
+ 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)
+ 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);
+ ov2659->link_frequency =
+ v4l2_ctrl_new_std(&ov2659->ctrls, &ov2659_ctrl_ops,
+ V4L2_CID_PIXEL_RATE,
+ pdata->link_frequency / 2,
+ pdata->link_frequency, 1,
+ pdata->link_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@ti.com>");
+MODULE_DESCRIPTION("OV2659 CMOS Image Sensor driver");
+MODULE_LICENSE("GPL v2");
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