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/*
* Copyright 2005-2009 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/ctype.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/regulator/consumer.h>
#include "mxc_v4l2_capture.h"
enum ov2640_mode {
ov2640_mode_1600_1120,
ov2640_mode_800_600
};
struct reg_value {
u8 reg;
u8 value;
int delay_ms;
};
static struct reg_value ov2640_setting_1600_1120[] = {
{0xff, 0x1, 0}, {0x12, 0x80, 1}, {0xff, 0, 0}, {0x2c, 0xff, 0},
{0x2e, 0xdf, 0}, {0xff, 0x1, 0}, {0x3c, 0x32, 0}, {0x11, 0x01, 0},
{0x09, 0x00, 0}, {0x04, 0x28, 0}, {0x13, 0xe5, 0}, {0x14, 0x48, 0},
{0x2c, 0x0c, 0}, {0x33, 0x78, 0}, {0x3a, 0x33, 0}, {0x3b, 0xfb, 0},
{0x3e, 0x00, 0}, {0x43, 0x11, 0}, {0x16, 0x10, 0}, {0x39, 0x82, 0},
{0x35, 0x88, 0}, {0x22, 0x0a, 0}, {0x37, 0x40, 0}, {0x23, 0x00, 0},
{0x34, 0xa0, 0}, {0x36, 0x1a, 0}, {0x06, 0x02, 0}, {0x07, 0xc0, 0},
{0x0d, 0xb7, 0}, {0x0e, 0x01, 0}, {0x4c, 0x00, 0}, {0x4a, 0x81, 0},
{0x21, 0x99, 0}, {0x24, 0x40, 0}, {0x25, 0x38, 0}, {0x26, 0x82, 0},
{0x5c, 0x00, 0}, {0x63, 0x00, 0}, {0x46, 0x3f, 0}, {0x0c, 0x3c, 0},
{0x5d, 0x55, 0}, {0x5e, 0x7d, 0}, {0x5f, 0x7d, 0}, {0x60, 0x55, 0},
{0x61, 0x70, 0}, {0x62, 0x80, 0}, {0x7c, 0x05, 0}, {0x20, 0x80, 0},
{0x28, 0x30, 0}, {0x6c, 0x00, 0}, {0x6d, 0x80, 0}, {0x6e, 00, 0},
{0x70, 0x02, 0}, {0x71, 0x94, 0}, {0x73, 0xc1, 0}, {0x3d, 0x34, 0},
{0x5a, 0x57, 0}, {0x4f, 0xbb, 0}, {0x50, 0x9c, 0}, {0xff, 0x00, 0},
{0xe5, 0x7f, 0}, {0xf9, 0xc0, 0}, {0x41, 0x24, 0}, {0x44, 0x06, 0},
{0xe0, 0x14, 0}, {0x76, 0xff, 0}, {0x33, 0xa0, 0}, {0x42, 0x20, 0},
{0x43, 0x18, 0}, {0x4c, 0x00, 0}, {0x87, 0xd0, 0}, {0xd7, 0x03, 0},
{0xd9, 0x10, 0}, {0xd3, 0x82, 0}, {0xc8, 0x08, 0}, {0xc9, 0x80, 0},
{0x7c, 0x00, 0}, {0x7d, 0x00, 0}, {0x7c, 0x03, 0}, {0x7d, 0x48, 0},
{0x7d, 0x48, 0}, {0x7c, 0x08, 0}, {0x7d, 0x20, 0}, {0x7d, 0x10, 0},
{0x7d, 0x0e, 0}, {0x90, 0x00, 0}, {0x91, 0x0e, 0}, {0x91, 0x1a, 0},
{0x91, 0x31, 0}, {0x91, 0x5a, 0}, {0x91, 0x69, 0}, {0x91, 0x75, 0},
{0x91, 0x7e, 0}, {0x91, 0x88, 0}, {0x91, 0x8f, 0}, {0x91, 0x96, 0},
{0x91, 0xa3, 0}, {0x91, 0xaf, 0}, {0x91, 0xc4, 0}, {0x91, 0xd7, 0},
{0x91, 0xe8, 0}, {0x91, 0x20, 0}, {0x92, 0x00, 0}, {0x93, 0x06, 0},
{0x93, 0xe3, 0}, {0x93, 0x03, 0}, {0x93, 0x03, 0}, {0x93, 0x00, 0},
{0x93, 0x02, 0}, {0x93, 0x00, 0}, {0x93, 0x00, 0}, {0x93, 0x00, 0},
{0x93, 0x00, 0}, {0x93, 0x00, 0}, {0x93, 0x00, 0}, {0x93, 0x00, 0},
{0x96, 0x00, 0}, {0x97, 0x08, 0}, {0x97, 0x19, 0}, {0x97, 0x02, 0},
{0x97, 0x0c, 0}, {0x97, 0x24, 0}, {0x97, 0x30, 0}, {0x97, 0x28, 0},
{0x97, 0x26, 0}, {0x97, 0x02, 0}, {0x97, 0x98, 0}, {0x97, 0x80, 0},
{0x97, 0x00, 0}, {0x97, 0x00, 0}, {0xa4, 0x00, 0}, {0xa8, 0x00, 0},
{0xc5, 0x11, 0}, {0xc6, 0x51, 0}, {0xbf, 0x80, 0}, {0xc7, 0x10, 0},
{0xb6, 0x66, 0}, {0xb8, 0xa5, 0}, {0xb7, 0x64, 0}, {0xb9, 0x7c, 0},
{0xb3, 0xaf, 0}, {0xb4, 0x97, 0}, {0xb5, 0xff, 0}, {0xb0, 0xc5, 0},
{0xb1, 0x94, 0}, {0xb2, 0x0f, 0}, {0xc4, 0x5c, 0}, {0xa6, 0x00, 0},
{0xa7, 0x20, 0}, {0xa7, 0xd8, 0}, {0xa7, 0x1b, 0}, {0xa7, 0x31, 0},
{0xa7, 0x00, 0}, {0xa7, 0x18, 0}, {0xa7, 0x20, 0}, {0xa7, 0xd8, 0},
{0xa7, 0x19, 0}, {0xa7, 0x31, 0}, {0xa7, 0x00, 0}, {0xa7, 0x18, 0},
{0xa7, 0x20, 0}, {0xa7, 0xd8, 0}, {0xa7, 0x19, 0}, {0xa7, 0x31, 0},
{0xa7, 0x00, 0}, {0xa7, 0x18, 0}, {0xc0, 0xc8, 0}, {0xc1, 0x96, 0},
{0x86, 0x3d, 0}, {0x50, 0x00, 0}, {0x51, 0x90, 0}, {0x52, 0x18, 0},
{0x53, 0x00, 0}, {0x54, 0x00, 0}, {0x55, 0x88, 0}, {0x57, 0x00, 0},
{0x5a, 0x90, 0}, {0x5b, 0x18, 0}, {0x5c, 0x05, 0}, {0xc3, 0xef, 0},
{0x7f, 0x00, 0}, {0xda, 0x01, 0}, {0xe5, 0x1f, 0}, {0xe1, 0x67, 0},
{0xe0, 0x00, 0}, {0xdd, 0x7f, 0}, {0x05, 0x00, 0}
};
static struct reg_value ov2640_setting_800_600[] = {
{0xff, 0, 0}, {0xff, 1, 0}, {0x12, 0x80, 1}, {0xff, 00, 0},
{0x2c, 0xff, 0}, {0x2e, 0xdf, 0}, {0xff, 0x1, 0}, {0x3c, 0x32, 0},
{0x11, 0x01, 0}, {0x09, 0x00, 0}, {0x04, 0x28, 0}, {0x13, 0xe5, 0},
{0x14, 0x48, 0}, {0x2c, 0x0c, 0}, {0x33, 0x78, 0}, {0x3a, 0x33, 0},
{0x3b, 0xfb, 0}, {0x3e, 0x00, 0}, {0x43, 0x11, 0}, {0x16, 0x10, 0},
{0x39, 0x92, 0}, {0x35, 0xda, 0}, {0x22, 0x1a, 0}, {0x37, 0xc3, 0},
{0x23, 0x00, 0}, {0x34, 0xc0, 0}, {0x36, 0x1a, 0}, {0x06, 0x88, 0},
{0x07, 0xc0, 0}, {0x0d, 0x87, 0}, {0x0e, 0x41, 0}, {0x4c, 0x00, 0},
{0x4a, 0x81, 0}, {0x21, 0x99, 0}, {0x24, 0x40, 0}, {0x25, 0x38, 0},
{0x26, 0x82, 0}, {0x5c, 0x00, 0}, {0x63, 0x00, 0}, {0x46, 0x22, 0},
{0x0c, 0x3c, 0}, {0x5d, 0x55, 0}, {0x5e, 0x7d, 0}, {0x5f, 0x7d, 0},
{0x60, 0x55, 0}, {0x61, 0x70, 0}, {0x62, 0x80, 0}, {0x7c, 0x05, 0},
{0x20, 0x80, 0}, {0x28, 0x30, 0}, {0x6c, 0x00, 0}, {0x6d, 0x80, 0},
{0x6e, 00, 0}, {0x70, 0x02, 0}, {0x71, 0x94, 0}, {0x73, 0xc1, 0},
{0x12, 0x40, 0}, {0x17, 0x11, 0}, {0x18, 0x43, 0}, {0x19, 0x00, 0},
{0x1a, 0x4b, 0}, {0x32, 0x09, 0}, {0x37, 0xc0, 0}, {0x4f, 0xca, 0},
{0x50, 0xa8, 0}, {0x6d, 0x00, 0}, {0x3d, 0x38, 0}, {0xff, 0x00, 0},
{0xe5, 0x7f, 0}, {0xf9, 0xc0, 0}, {0x41, 0x24, 0}, {0x44, 0x06, 0},
{0xe0, 0x14, 0}, {0x76, 0xff, 0}, {0x33, 0xa0, 0}, {0x42, 0x20, 0},
{0x43, 0x18, 0}, {0x4c, 0x00, 0}, {0x87, 0xd0, 0}, {0x88, 0x3f, 0},
{0xd7, 0x03, 0}, {0xd9, 0x10, 0}, {0xd3, 0x82, 0}, {0xc8, 0x08, 0},
{0xc9, 0x80, 0}, {0x7c, 0x00, 0}, {0x7d, 0x00, 0}, {0x7c, 0x03, 0},
{0x7d, 0x48, 0}, {0x7d, 0x48, 0}, {0x7c, 0x08, 0}, {0x7d, 0x20, 0},
{0x7d, 0x10, 0}, {0x7d, 0x0e, 0}, {0x90, 0x00, 0}, {0x91, 0x0e, 0},
{0x91, 0x1a, 0}, {0x91, 0x31, 0}, {0x91, 0x5a, 0}, {0x91, 0x69, 0},
{0x91, 0x75, 0}, {0x91, 0x7e, 0}, {0x91, 0x88, 0}, {0x91, 0x8f, 0},
{0x91, 0x96, 0}, {0x91, 0xa3, 0}, {0x91, 0xaf, 0}, {0x91, 0xc4, 0},
{0x91, 0xd7, 0}, {0x91, 0xe8, 0}, {0x91, 0x20, 0}, {0x92, 0x00, 0},
{0x93, 0x06, 0}, {0x93, 0xe3, 0}, {0x93, 0x03, 0}, {0x93, 0x03, 0},
{0x93, 0x00, 0}, {0x93, 0x02, 0}, {0x93, 0x00, 0}, {0x93, 0x00, 0},
{0x93, 0x00, 0}, {0x93, 0x00, 0}, {0x93, 0x00, 0}, {0x93, 0x00, 0},
{0x93, 0x00, 0}, {0x96, 0x00, 0}, {0x97, 0x08, 0}, {0x97, 0x19, 0},
{0x97, 0x02, 0}, {0x97, 0x0c, 0}, {0x97, 0x24, 0}, {0x97, 0x30, 0},
{0x97, 0x28, 0}, {0x97, 0x26, 0}, {0x97, 0x02, 0}, {0x97, 0x98, 0},
{0x97, 0x80, 0}, {0x97, 0x00, 0}, {0x97, 0x00, 0}, {0xa4, 0x00, 0},
{0xa8, 0x00, 0}, {0xc5, 0x11, 0}, {0xc6, 0x51, 0}, {0xbf, 0x80, 0},
{0xc7, 0x10, 0}, {0xb6, 0x66, 0}, {0xb8, 0xa5, 0}, {0xb7, 0x64, 0},
{0xb9, 0x7c, 0}, {0xb3, 0xaf, 0}, {0xb4, 0x97, 0}, {0xb5, 0xff, 0},
{0xb0, 0xc5, 0}, {0xb1, 0x94, 0}, {0xb2, 0x0f, 0}, {0xc4, 0x5c, 0},
{0xa6, 0x00, 0}, {0xa7, 0x20, 0}, {0xa7, 0xd8, 0}, {0xa7, 0x1b, 0},
{0xa7, 0x31, 0}, {0xa7, 0x00, 0}, {0xa7, 0x18, 0}, {0xa7, 0x20, 0},
{0xa7, 0xd8, 0}, {0xa7, 0x19, 0}, {0xa7, 0x31, 0}, {0xa7, 0x00, 0},
{0xa7, 0x18, 0}, {0xa7, 0x20, 0}, {0xa7, 0xd8, 0}, {0xa7, 0x19, 0},
{0xa7, 0x31, 0}, {0xa7, 0x00, 0}, {0xa7, 0x18, 0}, {0xc0, 0x64, 0},
{0xc1, 0x4b, 0}, {0x86, 0x1d, 0}, {0x50, 0x00, 0}, {0x51, 0xc8, 0},
{0x52, 0x96, 0}, {0x53, 0x00, 0}, {0x54, 0x00, 0}, {0x55, 0x00, 0},
{0x57, 0x00, 0}, {0x5a, 0xc8, 0}, {0x5b, 0x96, 0}, {0x5c, 0x00, 0},
{0xc3, 0xef, 0}, {0x7f, 0x00, 0}, {0xda, 0x01, 0}, {0xe5, 0x1f, 0},
{0xe1, 0x67, 0}, {0xe0, 0x00, 0}, {0xdd, 0x7f, 0}, {0x05, 0x00, 0}
};
static struct regulator *io_regulator;
static struct regulator *core_regulator;
static struct regulator *analog_regulator;
static struct regulator *gpo_regulator;
u32 mclk = 24000000;
struct i2c_client *ov2640_i2c_client;
static sensor_interface *interface_param;
static int reset_frame_rate = 30;
static int ov2640_probe(struct i2c_client *adapter,
const struct i2c_device_id *id);
static int ov2640_remove(struct i2c_client *client);
static const struct i2c_device_id ov2640_id[] = {
{"ov2640", 0},
{},
};
MODULE_DEVICE_TABLE(i2c, ov2640_id);
static struct i2c_driver ov2640_i2c_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "ov2640",
},
.probe = ov2640_probe,
.remove = ov2640_remove,
.id_table = ov2640_id,
};
/*!
* ov2640 I2C attach function
*
* @param adapter struct i2c_adapter *
* @return Error code indicating success or failure
*/
static int ov2640_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct mxc_camera_platform_data *plat_data = client->dev.platform_data;
ov2640_i2c_client = client;
mclk = plat_data->mclk;
io_regulator = regulator_get(&client->dev, plat_data->io_regulator);
core_regulator = regulator_get(&client->dev, plat_data->core_regulator);
analog_regulator =
regulator_get(&client->dev, plat_data->analog_regulator);
gpo_regulator = regulator_get(&client->dev, plat_data->gpo_regulator);
interface_param = (sensor_interface *)
kmalloc(sizeof(sensor_interface), GFP_KERNEL);
if (!interface_param) {
dev_dbg(&ov2640_i2c_client->dev,
"ov2640_probe: kmalloc failed \n");
return -1;
}
return 0;
}
/*!
* ov2640 I2C detach function
*
* @param client struct i2c_client *
* @return Error code indicating success or failure
*/
static int ov2640_remove(struct i2c_client *client)
{
kfree(interface_param);
interface_param = NULL;
if (!IS_ERR_VALUE((unsigned long)io_regulator)) {
regulator_disable(io_regulator);
regulator_put(io_regulator);
}
if (!IS_ERR_VALUE((unsigned long)core_regulator)) {
regulator_disable(core_regulator);
regulator_put(core_regulator);
}
if (!IS_ERR_VALUE((unsigned long)gpo_regulator)) {
regulator_disable(gpo_regulator);
regulator_put(gpo_regulator);
}
if (!IS_ERR_VALUE((unsigned long)analog_regulator)) {
regulator_disable(analog_regulator);
regulator_put(analog_regulator);
}
return 0;
}
static int ov2640_write_reg(u8 reg, u8 val)
{
if (i2c_smbus_write_byte_data(ov2640_i2c_client, reg, val) < 0) {
dev_dbg(&ov2640_i2c_client->dev,
"%s:write reg errorr:reg=%x,val=%x\n", __func__, reg,
val);
return -1;
}
return 0;
}
static int ov2640_init_mode(enum ov2640_mode mode)
{
struct reg_value *setting;
int i, num;
switch (mode) {
case ov2640_mode_1600_1120:
setting = ov2640_setting_1600_1120;
num = ARRAY_SIZE(ov2640_setting_1600_1120);
break;
case ov2640_mode_800_600:
setting = ov2640_setting_800_600;
num = ARRAY_SIZE(ov2640_setting_800_600);
break;
default:
return 0;
}
for (i = 0; i < num; i++) {
ov2640_write_reg(setting[i].reg, setting[i].value);
if (setting[i].delay_ms > 0)
msleep(setting[i].delay_ms);
}
return 0;
}
/*!
* ov2640 sensor interface Initialization
* @param param sensor_interface *
* @param width u32
* @param height u32
* @return None
*/
static void ov2640_interface(sensor_interface *param, u32 width, u32 height)
{
param->Vsync_pol = 0x0;
param->clk_mode = 0x0; /*gated */
param->pixclk_pol = 0x0;
param->data_width = 0x1;
param->data_pol = 0x0;
param->ext_vsync = 0x0;
param->Vsync_pol = 0x0;
param->Hsync_pol = 0x0;
param->width = width - 1;
param->height = height - 1;
param->active_width = width;
param->active_height = height;
param->pixel_fmt = IPU_PIX_FMT_UYVY;
param->mclk = mclk;
}
static void ov2640_set_color(int bright, int saturation, int red, int green,
int blue)
{
}
static void ov2640_get_color(int *bright, int *saturation, int *red, int *green,
int *blue)
{
}
static void ov2640_set_ae_mode(int ae_mode)
{
}
static void ov2640_get_ae_mode(int *ae_mode)
{
}
extern void gpio_sensor_active(void);
static sensor_interface *ov2640_config(int *frame_rate, int high_quality)
{
u32 out_width, out_height;
/*set io votage */
if (!IS_ERR_VALUE((unsigned long)io_regulator)) {
regulator_set_voltage(io_regulator, 2800000, 2800000);
if (regulator_enable(io_regulator) != 0) {
dev_dbg(&ov2640_i2c_client->dev,
"%s:io set voltage error\n", __func__);
return NULL;
} else {
dev_dbg(&ov2640_i2c_client->dev,
"%s:io set voltage ok\n", __func__);
}
}
/*core votage */
if (!IS_ERR_VALUE((unsigned long)core_regulator)) {
regulator_set_voltage(core_regulator, 1300000, 1300000);
if (regulator_enable(core_regulator) != 0) {
dev_dbg(&ov2640_i2c_client->dev,
"%s:core set voltage error\n", __func__);
return NULL;
} else {
dev_dbg(&ov2640_i2c_client->dev,
"%s:core set voltage ok\n", __func__);
}
}
/*GPO 3 */
if (!IS_ERR_VALUE((unsigned long)gpo_regulator)) {
if (regulator_enable(gpo_regulator) != 0) {
dev_dbg(&ov2640_i2c_client->dev,
"%s:gpo3 enable error\n", __func__);
return NULL;
} else {
dev_dbg(&ov2640_i2c_client->dev, "%s:gpo3 enable ok\n",
__func__);
}
}
if (!IS_ERR_VALUE((unsigned long)analog_regulator)) {
regulator_set_voltage(analog_regulator, 2000000, 2000000);
if (regulator_enable(analog_regulator) != 0) {
dev_dbg(&ov2640_i2c_client->dev,
"%s:analog set voltage error\n", __func__);
return NULL;
} else {
dev_dbg(&ov2640_i2c_client->dev,
"%s:analog set voltage ok\n", __func__);
}
}
gpio_sensor_active();
if (high_quality) {
out_width = 1600;
out_height = 1120;
} else {
out_width = 800;
out_height = 600;
}
ov2640_interface(interface_param, out_width, out_height);
set_mclk_rate(&interface_param->mclk);
if (high_quality)
ov2640_init_mode(ov2640_mode_1600_1120);
else
ov2640_init_mode(ov2640_mode_800_600);
msleep(300);
return interface_param;
}
static sensor_interface *ov2640_reset(void)
{
return ov2640_config(&reset_frame_rate, 0);
}
struct camera_sensor camera_sensor_if = {
.set_color = ov2640_set_color,
.get_color = ov2640_get_color,
.set_ae_mode = ov2640_set_ae_mode,
.get_ae_mode = ov2640_get_ae_mode,
.config = ov2640_config,
.reset = ov2640_reset,
};
EXPORT_SYMBOL(camera_sensor_if);
/*!
* ov2640 init function
*
* @return Error code indicating success or failure
*/
static __init int ov2640_init(void)
{
u8 err;
err = i2c_add_driver(&ov2640_i2c_driver);
return err;
}
extern void gpio_sensor_inactive(void);
/*!
* OV2640 cleanup function
*
* @return Error code indicating success or failure
*/
static void __exit ov2640_clean(void)
{
i2c_del_driver(&ov2640_i2c_driver);
gpio_sensor_inactive();
}
module_init(ov2640_init);
module_exit(ov2640_clean);
MODULE_AUTHOR("Freescale Semiconductor, Inc.");
MODULE_DESCRIPTION("OV2640 Camera Driver");
MODULE_LICENSE("GPL");
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