shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 19:30:30 +09:00
Code Issues Packages Projects Releases Wiki Activity

media: soc_camera: add ov9281 sensor driver

Browse Source 
Change-Id: Iba0f767497584099b72e36c78b133e70ecdc28c0
Signed-off-by: Leo Wen <leo.wen@rock-chips.com>
This commit is contained in:
Leo Wen
2018-11-12 17:45:19 +08:00
committed by Tao Huang
parent 2c1523262b
commit 24cdff3a69
3 changed files with 838 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/media/i2c/soc_camera/rockchip/Kconfig
View File

@@ -69,6 +69,13 @@ config VIDEO_OV13850
---help---
This is ov13850 camera driver adapt to rockchip cif isp platform.
config VIDEO_OV9281
tristate "ov9281 driver adapt to rockchip cif isp platform"
depends on VIDEO_V4L2 && VIDEO_RK_CIF_ISP10 && I2C
default n
help
This is ov9281 camera driver adapt to rockchip cif isp platform.
config VIDEO_OV9750
tristate "ov9750 driver adapt to rockchip cif isp platform"
depends on VIDEO_V4L2 && VIDEO_RK_CIF_ISP10 && I2C

1
drivers/media/i2c/soc_camera/rockchip/Makefile
View File

@@ -9,4 +9,5 @@ obj-$(CONFIG_VIDEO_ADV7181) += adv_camera_module.o rk_camera_module.o adv7181_v4
obj-$(CONFIG_VIDEO_OV7675) += ov_camera_module.o rk_camera_module.o ov7675_v4l2-i2c-subdev.o
obj-$(CONFIG_VIDEO_NT99230) += ov_camera_module.o rk_camera_module.o nt99230_v4l2-i2c-subdev.o
obj-$(CONFIG_VIDEO_OV13850) += ov_camera_module.o rk_camera_module.o ov13850_v4l2-i2c-subdev.o
obj-$(CONFIG_VIDEO_OV9281) += ov_camera_module.o rk_camera_module.o ov9281_v4l2-i2c-subdev.o
obj-$(CONFIG_VIDEO_OV9750) += ov_camera_module.o rk_camera_module.o ov9750_v4l2-i2c-subdev.o

830
drivers/media/i2c/soc_camera/rockchip/ov9281_v4l2-i2c-subdev.c Normal file
View File

@@ -0,0 +1,830 @@
// SPDX-License-Identifier: GPL-2.0
/*
* drivers/media/i2c/soc_camera/xgold/ov9281.c
*
* ov9281 sensor driver
*
* Copyright (C) 2016 Fuzhou Rockchip Electronics Co., Ltd.
*
* Copyright (C) 2012-2014 Intel Mobile Communications GmbH
*
* Copyright (C) 2008 Texas Instruments.
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*
* Note:
* 07/01/2014: new implementation using v4l2-subdev
* instead of v4l2-int-device.
*/
#include <linux/i2c.h>
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <media/v4l2-subdev.h>
#include <media/videobuf-core.h>
#include <linux/slab.h>
#include "ov_camera_module.h"
#define DEBUG
#define ov9281_DRIVER_NAME "ov9281"
#define ov9281_FETCH_LSB_GAIN(VAL) ((VAL) & 0x00ff)
#define ov9281_FETCH_MSB_GAIN(VAL) (((VAL) >> 8) & 0xff)
#define ov9281_AEC_PK_LONG_GAIN_REG 0x3509 /* Bits 0 -5 */
#define ov9281_AEC_PK_LONG_EXPO_3RD_REG 0x3500 /* Exposure Bits 16-19 */
#define ov9281_AEC_PK_LONG_EXPO_2ND_REG 0x3501 /* Exposure Bits 8-15 */
#define ov9281_AEC_PK_LONG_EXPO_1ST_REG 0x3502 /* Exposure Bits 0-7 */
#define ov9281_AEC_GROUP_UPDATE_ADDRESS 0x3208
#define ov9281_AEC_GROUP_UPDATE_START_DATA 0x00
#define ov9281_AEC_GROUP_UPDATE_END_DATA 0x10
#define ov9281_AEC_GROUP_UPDATE_END_LAUNCH 0xA0
#define ov9281_FETCH_3RD_BYTE_EXP(VAL) (((VAL) >> 16) & 0xF) /* 4 Bits */
#define ov9281_FETCH_2ND_BYTE_EXP(VAL) (((VAL) >> 8) & 0xFF) /* 8 Bits */
#define ov9281_FETCH_1ST_BYTE_EXP(VAL) ((VAL) & 0xFF) /* 8 Bits */
#define ov9281_PIDH_ADDR 0x300A
#define ov9281_PIDL_ADDR 0x300B
#define ov9281_TIMING_VTS_HIGH_REG 0x380e
#define ov9281_TIMING_VTS_LOW_REG 0x380f
#define ov9281_TIMING_HTS_HIGH_REG 0x380c
#define ov9281_TIMING_HTS_LOW_REG 0x380d
#define ov9281_INTEGRATION_TIME_MARGIN 8
#define ov9281_FINE_INTG_TIME_MIN 0
#define ov9281_FINE_INTG_TIME_MAX_MARGIN 0
#define ov9281_COARSE_INTG_TIME_MIN 1
#define ov9281_COARSE_INTG_TIME_MAX_MARGIN 25
#define ov9281_TIMING_X_INC 0x3814
#define ov9281_TIMING_Y_INC 0x3815
#define ov9281_HORIZONTAL_START_HIGH_REG 0x3800
#define ov9281_HORIZONTAL_START_LOW_REG 0x3801
#define ov9281_VERTICAL_START_HIGH_REG 0x3802
#define ov9281_VERTICAL_START_LOW_REG 0x3803
#define ov9281_HORIZONTAL_END_HIGH_REG 0x3804
#define ov9281_HORIZONTAL_END_LOW_REG 0x3805
#define ov9281_VERTICAL_END_HIGH_REG 0x3806
#define ov9281_VERTICAL_END_LOW_REG 0x3807
#define ov9281_HORIZONTAL_OUTPUT_SIZE_HIGH_REG 0x3808
#define ov9281_HORIZONTAL_OUTPUT_SIZE_LOW_REG 0x3809
#define ov9281_VERTICAL_OUTPUT_SIZE_HIGH_REG 0x380a
#define ov9281_VERTICAL_OUTPUT_SIZE_LOW_REG 0x380b
#define ov9281_FLIP_REG 0x3820
#define ov9281_MIRROR_REG 0x3821
#define ov9281_EXT_CLK 24000000
#define ov9281_FULL_SIZE_RESOLUTION_WIDTH 1280
#define ov9281_BINING_SIZE_RESOLUTION_WIDTH 1280
#define ov9281_VIDEO_SIZE_RESOLUTION_WIDTH 1200
#define ov9281_EXP_VALID_FRAMES 4
/* High byte of product ID */
#define ov9281_PIDH_MAGIC 0x92
/* Low byte of product ID */
#define ov9281_PIDL_MAGIC 0x81
#define ov9281_SNAPSHOT_MODE 1
static struct ov_camera_module ov9281;
static struct ov_camera_module_custom_config ov9281_custom_config;
/* ======================================================================== */
/* Base sensor configs */
/* ======================================================================== */
/* MCLK:26MHz 1280x800 60fps mipi 2lane 481Mbps/lane */
static struct ov_camera_module_reg
ov9281_init_tab_1280_800_60fps[] = {
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x0103, 0x01},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x0302, 0x32},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x030d, 0x50},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x030e, 0x02},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3001, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3004, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3005, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3006, 0x04},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3011, 0x0a},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3013, 0x18},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3022, 0x01},
/* normal */
// {OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4f00, 0x01};
#ifdef ov9281_SNAPSHOT_MODE
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3023, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x302c, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x302f, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3030, 0x04},
#else
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3030, 0x10},
#endif
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3039, 0x32},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x303a, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x303f, 0x01},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3500, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3501, 0x2a},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3502, 0x90},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3503, 0x08},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3505, 0x8c},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3507, 0x03},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3508, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3509, 0x10},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3610, 0x80},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3611, 0xa0},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3620, 0x6f},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3632, 0x56},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3633, 0x78},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3662, 0x05},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3666, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x366f, 0x5a},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3680, 0x84},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3712, 0x80},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x372d, 0x22},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3731, 0x80},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3732, 0x30},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3778, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x377d, 0x22},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3788, 0x02},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3789, 0xa4},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x378a, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x378b, 0x4a},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3799, 0x20},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3800, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3801, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3802, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3803, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3804, 0x05},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3805, 0x0f},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3806, 0x03},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3807, 0x2f},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3808, 0x05},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3809, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x380a, 0x03},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x380b, 0x20},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x380c, 0x02},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x380d, 0xd8},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x380e, 0x03},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x380f, 0x8e},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3810, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3811, 0x08},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3812, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3813, 0x08},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3814, 0x11},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3815, 0x11},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3820, 0x40},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3821, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3881, 0x42},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x38b1, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x3920, 0xff},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4003, 0x40},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4008, 0x04},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4009, 0x0b},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x400c, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x400d, 0x07},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4010, 0x40},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4043, 0x40},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4307, 0x30},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4317, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4501, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4507, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4509, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x450a, 0x08},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4601, 0x04},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x470f, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4f07, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x4800, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x5000, 0x9f},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x5001, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x5e00, 0x00},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x5d00, 0x07},
{OV_CAMERA_MODULE_REG_TYPE_DATA, 0x5d01, 0x00}
};
/* ======================================================================== */
static struct ov_camera_module_config ov9281_configs[] = {
{
.name = "1280x800_60fps",
.frm_fmt = {
.width = 1280,
.height = 800,
.code = MEDIA_BUS_FMT_Y10_1X10
},
.frm_intrvl = {
.interval = {
.numerator = 1,
.denominator = 120
}
},
.auto_exp_enabled = false,
.auto_gain_enabled = false,
.auto_wb_enabled = false,
.reg_table = (void *)ov9281_init_tab_1280_800_60fps,
.reg_table_num_entries =
sizeof(ov9281_init_tab_1280_800_60fps) /
sizeof(ov9281_init_tab_1280_800_60fps[0]),
.v_blanking_time_us = 7251,
PLTFRM_CAM_ITF_MIPI_CFG(0, 2, 450, 24000000)
}
};
/*--------------------------------------------------------------------------*/
static int ov9281_g_VTS(struct ov_camera_module *cam_mod, u32 *vts)
{
u32 msb, lsb;
int ret;
ret = ov_camera_module_read_reg_table(cam_mod,
ov9281_TIMING_VTS_HIGH_REG,
&msb);
if (IS_ERR_VALUE(ret))
goto err;
ret = ov_camera_module_read_reg_table(cam_mod,
ov9281_TIMING_VTS_LOW_REG,
&lsb);
if (IS_ERR_VALUE(ret))
goto err;
*vts = (msb << 8) | lsb;
cam_mod->vts_cur = *vts;
return 0;
err:
ov_camera_module_pr_err(cam_mod,
"failed with error (%d)\n", ret);
return ret;
}
/*--------------------------------------------------------------------------*/
static int ov9281_auto_adjust_fps(struct ov_camera_module *cam_mod,
u32 exp_time)
{
int ret;
u32 vts;
if ((cam_mod->exp_config.exp_time + ov9281_COARSE_INTG_TIME_MAX_MARGIN)
> cam_mod->vts_min)
vts = cam_mod->exp_config.exp_time +
ov9281_COARSE_INTG_TIME_MAX_MARGIN;
else
vts = cam_mod->vts_min;
ret = ov_camera_module_write_reg(cam_mod,
ov9281_TIMING_VTS_LOW_REG,
vts & 0xFF);
ret |= ov_camera_module_write_reg(cam_mod,
ov9281_TIMING_VTS_HIGH_REG,
(vts >> 8) & 0xFF);
if (IS_ERR_VALUE(ret)) {
ov_camera_module_pr_err(cam_mod,
"failed with error (%d)\n", ret);
} else {
ov_camera_module_pr_info(cam_mod,
"updated vts = %d,vts_min=%d\n", vts, cam_mod->vts_min);
cam_mod->vts_cur = vts;
}
return ret;
}
static int ov9281_set_vts(struct ov_camera_module *cam_mod,
u32 vts)
{
int ret = 0;
if (vts <= cam_mod->vts_min)
return ret;
ret = ov_camera_module_write_reg(cam_mod,
ov9281_TIMING_VTS_LOW_REG,
vts & 0xFF);
ret |= ov_camera_module_write_reg(cam_mod,
ov9281_TIMING_VTS_HIGH_REG,
(vts >> 8) & 0x0F);
if (IS_ERR_VALUE(ret)) {
ov_camera_module_pr_err(cam_mod,
"failed with error (%d)\n", ret);
} else {
ov_camera_module_pr_info(cam_mod,
"updated vts = 0x%x,vts_min=0x%x\n",
vts, cam_mod->vts_min);
cam_mod->vts_cur = vts;
}
return ret;
}
static int ov9281_write_aec(struct ov_camera_module *cam_mod)
{
int ret = 0;
ov_camera_module_pr_err(cam_mod,
"exp_time = %d, gain = %d, flash_mode = %d\n",
cam_mod->exp_config.exp_time,
cam_mod->exp_config.gain,
cam_mod->exp_config.flash_mode);
/*
* if the sensor is already streaming, write to shadow registers,
* if the sensor is in SW standby, write to active registers,
* if the sensor is off/registers are not writeable, do nothing
*/
if ((cam_mod->state == OV_CAMERA_MODULE_SW_STANDBY) ||
(cam_mod->state == OV_CAMERA_MODULE_STREAMING)) {
u32 a_gain = cam_mod->exp_config.gain;
u32 exp_time;
a_gain = a_gain > 0x7ff ? 0x7ff : a_gain;
a_gain = a_gain * cam_mod->exp_config.gain_percent / 100;
exp_time = cam_mod->exp_config.exp_time << 4;
if (cam_mod->state == OV_CAMERA_MODULE_STREAMING)
ret = ov_camera_module_write_reg(cam_mod,
ov9281_AEC_GROUP_UPDATE_ADDRESS,
ov9281_AEC_GROUP_UPDATE_START_DATA);
if (!IS_ERR_VALUE(ret) && cam_mod->auto_adjust_fps)
ret = ov9281_auto_adjust_fps(cam_mod,
cam_mod->exp_config.exp_time);
ret |= ov_camera_module_write_reg(cam_mod,
ov9281_AEC_PK_LONG_GAIN_REG,
ov9281_FETCH_LSB_GAIN(a_gain));
ret = ov_camera_module_write_reg(cam_mod,
ov9281_AEC_PK_LONG_EXPO_3RD_REG,
ov9281_FETCH_3RD_BYTE_EXP(exp_time));
ret |= ov_camera_module_write_reg(cam_mod,
ov9281_AEC_PK_LONG_EXPO_2ND_REG,
ov9281_FETCH_2ND_BYTE_EXP(exp_time));
ret |= ov_camera_module_write_reg(cam_mod,
ov9281_AEC_PK_LONG_EXPO_1ST_REG,
ov9281_FETCH_1ST_BYTE_EXP(exp_time));
if (!cam_mod->auto_adjust_fps)
ret |= ov9281_set_vts(cam_mod,
cam_mod->exp_config.vts_value);
if (cam_mod->state == OV_CAMERA_MODULE_STREAMING) {
ret = ov_camera_module_write_reg(cam_mod,
ov9281_AEC_GROUP_UPDATE_ADDRESS,
ov9281_AEC_GROUP_UPDATE_END_DATA);
ret = ov_camera_module_write_reg(cam_mod,
ov9281_AEC_GROUP_UPDATE_ADDRESS,
ov9281_AEC_GROUP_UPDATE_END_LAUNCH);
}
}
if (IS_ERR_VALUE(ret))
ov_camera_module_pr_err(cam_mod,
"failed with error (%d)\n", ret);
return ret;
}
/*--------------------------------------------------------------------------*/
static int ov9281_g_ctrl(struct ov_camera_module *cam_mod, u32 ctrl_id)
{
int ret = 0;
ov_camera_module_pr_debug(cam_mod, "\n");
switch (ctrl_id) {
case V4L2_CID_GAIN:
case V4L2_CID_EXPOSURE:
case V4L2_CID_FLASH_LED_MODE:
/* nothing to be done here */
break;
default:
ret = -EINVAL;
break;
}
if (IS_ERR_VALUE(ret))
ov_camera_module_pr_debug(cam_mod,
"failed with error (%d)\n", ret);
return ret;
}
/*--------------------------------------------------------------------------*/
static int ov9281_filltimings(struct ov_camera_module_custom_config *custom)
{
size_t i;
int j;
struct ov_camera_module_config *config;
struct ov_camera_module_timings *timings;
struct ov_camera_module_reg *reg_table;
int reg_table_num_entries;
for (i = 0; i < custom->num_configs; i++) {
config = &custom->configs[i];
reg_table = config->reg_table;
reg_table_num_entries = config->reg_table_num_entries;
timings = &config->timings;
memset(timings, 0x00, sizeof(*timings));
for (j = 0; j < reg_table_num_entries; j++) {
switch (reg_table[j].reg) {
case ov9281_TIMING_VTS_HIGH_REG:
timings->frame_length_lines =
((reg_table[j].val << 8) |
(timings->frame_length_lines & 0xff));
break;
case ov9281_TIMING_VTS_LOW_REG:
timings->frame_length_lines =
(reg_table[j].val |
(timings->frame_length_lines & 0xff00));
break;
case ov9281_TIMING_HTS_HIGH_REG:
timings->line_length_pck =
((reg_table[j].val << 8) |
timings->line_length_pck);
break;
case ov9281_TIMING_HTS_LOW_REG:
timings->line_length_pck =
(reg_table[j].val |
(timings->line_length_pck & 0xff00));
break;
case ov9281_TIMING_X_INC:
timings->binning_factor_x =
((reg_table[j].val >> 4) + 1) / 2;
if (timings->binning_factor_x == 0)
timings->binning_factor_x = 1;
break;
case ov9281_TIMING_Y_INC:
timings->binning_factor_y =
((reg_table[j].val >> 4) + 1) / 2;
if (timings->binning_factor_y == 0)
timings->binning_factor_y = 1;
break;
case ov9281_HORIZONTAL_START_HIGH_REG:
timings->crop_horizontal_start =
((reg_table[j].val << 8) |
(timings->crop_horizontal_start &
0xff));
break;
case ov9281_HORIZONTAL_START_LOW_REG:
timings->crop_horizontal_start =
(reg_table[j].val |
(timings->crop_horizontal_start &
0xff00));
break;
case ov9281_VERTICAL_START_HIGH_REG:
timings->crop_vertical_start =
((reg_table[j].val << 8) |
(timings->crop_vertical_start & 0xff));
break;
case ov9281_VERTICAL_START_LOW_REG:
timings->crop_vertical_start =
((reg_table[j].val) |
(timings->crop_vertical_start &
0xff00));
break;
case ov9281_HORIZONTAL_END_HIGH_REG:
timings->crop_horizontal_end =
((reg_table[j].val << 8) |
(timings->crop_horizontal_end & 0xff));
break;
case ov9281_HORIZONTAL_END_LOW_REG:
timings->crop_horizontal_end =
(reg_table[j].val |
(timings->crop_horizontal_end &
0xff00));
break;
case ov9281_VERTICAL_END_HIGH_REG:
timings->crop_vertical_end =
((reg_table[j].val << 8) |
(timings->crop_vertical_end & 0xff));
break;
case ov9281_VERTICAL_END_LOW_REG:
timings->crop_vertical_end =
(reg_table[j].val |
(timings->crop_vertical_end & 0xff00));
break;
case ov9281_HORIZONTAL_OUTPUT_SIZE_HIGH_REG:
timings->sensor_output_width =
((reg_table[j].val << 8) |
(timings->sensor_output_width & 0xff));
break;
case ov9281_HORIZONTAL_OUTPUT_SIZE_LOW_REG:
timings->sensor_output_width =
(reg_table[j].val |
(timings->sensor_output_width &
0xff00));
break;
case ov9281_VERTICAL_OUTPUT_SIZE_HIGH_REG:
timings->sensor_output_height =
((reg_table[j].val << 8) |
(timings->sensor_output_height & 0xff));
break;
case ov9281_VERTICAL_OUTPUT_SIZE_LOW_REG:
timings->sensor_output_height =
(reg_table[j].val |
(timings->sensor_output_height &
0xff00));
break;
case ov9281_AEC_PK_LONG_EXPO_1ST_REG:
timings->exp_time =
((reg_table[j].val) |
(timings->exp_time & 0xffff00));
break;
case ov9281_AEC_PK_LONG_EXPO_2ND_REG:
timings->exp_time =
((reg_table[j].val << 8) |
(timings->exp_time & 0x00ff00));
break;
case ov9281_AEC_PK_LONG_EXPO_3RD_REG:
timings->exp_time =
(((reg_table[j].val & 0x0f) << 16) |
(timings->exp_time & 0xff0000));
break;
case ov9281_AEC_PK_LONG_GAIN_REG:
timings->gain =
((reg_table[j].val) |
(timings->gain & 0x00ff));
break;
}
}
timings->exp_time >>= 4;
timings->vt_pix_clk_freq_hz =
config->frm_intrvl.interval.denominator
* timings->frame_length_lines
* timings->line_length_pck;
timings->coarse_integration_time_min =
ov9281_COARSE_INTG_TIME_MIN;
timings->coarse_integration_time_max_margin =
ov9281_COARSE_INTG_TIME_MAX_MARGIN;
/* OV Sensor do not use fine integration time. */
timings->fine_integration_time_min =
ov9281_FINE_INTG_TIME_MIN;
timings->fine_integration_time_max_margin =
ov9281_FINE_INTG_TIME_MAX_MARGIN;
}
return 0;
}
static int ov9281_g_timings(struct ov_camera_module *cam_mod,
struct ov_camera_module_timings *timings)
{
int ret = 0;
unsigned int vts;
if (IS_ERR_OR_NULL(cam_mod->active_config))
goto err;
*timings = cam_mod->active_config->timings;
vts = (!cam_mod->vts_cur) ?
timings->frame_length_lines :
cam_mod->vts_cur;
if (cam_mod->frm_intrvl_valid)
timings->vt_pix_clk_freq_hz =
cam_mod->frm_intrvl.interval.denominator *
vts * timings->line_length_pck;
else
timings->vt_pix_clk_freq_hz =
cam_mod->active_config->frm_intrvl.interval.denominator *
vts * timings->line_length_pck;
return ret;
err:
ov_camera_module_pr_err(cam_mod,
"failed with error (%d)\n", ret);
return ret;
}
/*--------------------------------------------------------------------------*/
static int ov9281_s_ctrl(struct ov_camera_module *cam_mod, u32 ctrl_id)
{
int ret = 0;
ov_camera_module_pr_debug(cam_mod, "\n");
switch (ctrl_id) {
case V4L2_CID_GAIN:
case V4L2_CID_EXPOSURE:
ret = ov9281_write_aec(cam_mod);
break;
case V4L2_CID_FLASH_LED_MODE:
/* nothing to be done here */
break;
default:
ret = -EINVAL;
break;
}
if (IS_ERR_VALUE(ret))
ov_camera_module_pr_debug(cam_mod,
"failed with error (%d) 0x%x\n", ret, ctrl_id);
return ret;
}
/*--------------------------------------------------------------------------*/
static int ov9281_s_ext_ctrls(struct ov_camera_module *cam_mod,
struct ov_camera_module_ext_ctrls *ctrls)
{
int ret = 0;
ov_camera_module_pr_debug(cam_mod, "\n");
/* Handles only exposure and gain together special case. */
if ((ctrls->ctrls[0].id == V4L2_CID_GAIN ||
ctrls->ctrls[0].id == V4L2_CID_EXPOSURE))
ret = ov9281_write_aec(cam_mod);
else
ret = -EINVAL;
if (IS_ERR_VALUE(ret))
ov_camera_module_pr_debug(cam_mod,
"failed with error (%d)\n", ret);
return ret;
}
/*--------------------------------------------------------------------------*/
static int ov9281_start_streaming(struct ov_camera_module *cam_mod)
{
int ret = 0;
ov_camera_module_pr_debug(cam_mod,
"active config=%s\n", cam_mod->active_config->name);
ret = ov9281_g_VTS(cam_mod, &cam_mod->vts_min);
if (IS_ERR_VALUE(ret))
goto err;
#ifdef ov9281_SNAPSHOT_MODE
if (IS_ERR_VALUE(ov_camera_module_write_reg(cam_mod, 0x0100, 0)))
goto err;
#else
if (IS_ERR_VALUE(ov_camera_module_write_reg(cam_mod, 0x0100, 1)))
goto err;
#endif
msleep(25);
return 0;
err:
ov_camera_module_pr_err(cam_mod, "failed with error (%d)\n",
ret);
return ret;
}
/*--------------------------------------------------------------------------*/
static int ov9281_stop_streaming(struct ov_camera_module *cam_mod)
{
int ret = 0;
ov_camera_module_pr_debug(cam_mod, "\n");
ret = ov_camera_module_write_reg(cam_mod, 0x0100, 0);
if (IS_ERR_VALUE(ret))
goto err;
msleep(25);
return 0;
err:
ov_camera_module_pr_err(cam_mod, "failed with error (%d)\n", ret);
return ret;
}
/*--------------------------------------------------------------------------*/
static int ov9281_check_camera_id(struct ov_camera_module *cam_mod)
{
u32 pidh, pidl = 0;
int ret = 0;
ov_camera_module_pr_debug(cam_mod, "\n");
ret |= ov_camera_module_read_reg(cam_mod, 1, ov9281_PIDH_ADDR, &pidh);
ret |= ov_camera_module_read_reg(cam_mod, 1, ov9281_PIDL_ADDR, &pidl);
if (IS_ERR_VALUE(ret)) {
ov_camera_module_pr_err(cam_mod,
"register read failed, camera module powered off?\n");
goto err;
}
if ((pidh == ov9281_PIDH_MAGIC) && (pidl == ov9281_PIDL_MAGIC)) {
ov_camera_module_pr_debug(cam_mod,
"successfully detected camera ID 0x%02x%02x\n",
pidh, pidl);
} else {
ov_camera_module_pr_err(cam_mod,
"wrong camera ID, expected 0x%02x%02x, detected 0x%02x%02x\n",
ov9281_PIDH_MAGIC, ov9281_PIDL_MAGIC, pidh, pidl);
ret = -EINVAL;
goto err;
}
return 0;
err:
ov_camera_module_pr_err(cam_mod, "failed with error (%d)\n", ret);
return ret;
}
/* ======================================================================== */
/* This part is platform dependent */
/* ======================================================================== */
static struct v4l2_subdev_core_ops ov9281_camera_module_core_ops = {
.g_ctrl = ov_camera_module_g_ctrl,
.s_ctrl = ov_camera_module_s_ctrl,
.s_ext_ctrls = ov_camera_module_s_ext_ctrls,
.s_power = ov_camera_module_s_power,
.ioctl = ov_camera_module_ioctl
};
static struct v4l2_subdev_video_ops ov9281_camera_module_video_ops = {
.s_frame_interval = ov_camera_module_s_frame_interval,
.s_stream = ov_camera_module_s_stream
};
static struct v4l2_subdev_pad_ops ov9281_camera_module_pad_ops = {
.enum_frame_interval = ov_camera_module_enum_frameintervals,
.get_fmt = ov_camera_module_g_fmt,
.set_fmt = ov_camera_module_s_fmt,
};
static struct v4l2_subdev_ops ov9281_camera_module_ops = {
.core = &ov9281_camera_module_core_ops,
.video = &ov9281_camera_module_video_ops,
.pad = &ov9281_camera_module_pad_ops
};
static struct ov_camera_module_custom_config ov9281_custom_config = {
.start_streaming = ov9281_start_streaming,
.stop_streaming = ov9281_stop_streaming,
.s_ctrl = ov9281_s_ctrl,
.s_vts = ov9281_auto_adjust_fps,
.s_ext_ctrls = ov9281_s_ext_ctrls,
.g_ctrl = ov9281_g_ctrl,
.g_timings = ov9281_g_timings,
.check_camera_id = ov9281_check_camera_id,
.configs = ov9281_configs,
.num_configs = ARRAY_SIZE(ov9281_configs),
.power_up_delays_ms = {5, 20, 0}
};
static int ov9281_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
dev_info(&client->dev, "tlc cam probing...\n");
dev_dbg(&client->dev, "tlc cam debug...\n");
ov9281_filltimings(&ov9281_custom_config);
client->flags |= I2C_CLIENT_SCCB;
v4l2_i2c_subdev_init(&ov9281.sd, client, &ov9281_camera_module_ops);
ov9281.custom = ov9281_custom_config;
dev_info(&client->dev, "tlc cam probing successful\n");
return 0;
}
static int ov9281_remove(struct i2c_client *client)
{
struct ov_camera_module *cam_mod = i2c_get_clientdata(client);
dev_info(&client->dev, "removing device...\n");
if (!client->adapter)
return -ENODEV; /* our client isn't attached */
ov_camera_module_release(cam_mod);
dev_info(&client->dev, "removed\n");
return 0;
}
static const struct i2c_device_id ov9281_id[] = {
{ ov9281_DRIVER_NAME, 0 },
{ }
};
static const struct of_device_id ov9281_of_match[] = {
{.compatible = "omnivision,ov9281-v4l2-i2c-subdev"},
{},
};
MODULE_DEVICE_TABLE(i2c, ov9281_id);
static struct i2c_driver ov9281_i2c_driver = {
.driver = {
.name = ov9281_DRIVER_NAME,
.of_match_table = ov9281_of_match
},
.probe = ov9281_probe,
.remove = ov9281_remove,
.id_table = ov9281_id,
};
module_i2c_driver(ov9281_i2c_driver);
MODULE_DESCRIPTION("SoC Camera driver for ov9281");
MODULE_AUTHOR("George");
MODULE_LICENSE("GPL");