1137 lines
28 KiB
C
1137 lines
28 KiB
C
/*
|
|
* mt9t112 Camera Driver
|
|
*
|
|
* Copyright (C) 2009 Renesas Solutions Corp.
|
|
* Kuninori Morimoto <morimoto.kuninori@renesas.com>
|
|
*
|
|
* Based on ov772x driver, mt9m111 driver,
|
|
*
|
|
* Copyright (C) 2008 Kuninori Morimoto <morimoto.kuninori@renesas.com>
|
|
* Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@free.fr>
|
|
* Copyright 2006-7 Jonathan Corbet <corbet@lwn.net>
|
|
* Copyright (C) 2008 Magnus Damm
|
|
* Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/delay.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/v4l2-mediabus.h>
|
|
#include <linux/videodev2.h>
|
|
|
|
#include <media/mt9t112.h>
|
|
#include <media/soc_camera.h>
|
|
#include <media/v4l2-chip-ident.h>
|
|
#include <media/v4l2-common.h>
|
|
|
|
/* you can check PLL/clock info */
|
|
/* #define EXT_CLOCK 24000000 */
|
|
|
|
/************************************************************************
|
|
macro
|
|
************************************************************************/
|
|
/*
|
|
* frame size
|
|
*/
|
|
#define MAX_WIDTH 2048
|
|
#define MAX_HEIGHT 1536
|
|
|
|
#define VGA_WIDTH 640
|
|
#define VGA_HEIGHT 480
|
|
|
|
/*
|
|
* macro of read/write
|
|
*/
|
|
#define ECHECKER(ret, x) \
|
|
do { \
|
|
(ret) = (x); \
|
|
if ((ret) < 0) \
|
|
return (ret); \
|
|
} while (0)
|
|
|
|
#define mt9t112_reg_write(ret, client, a, b) \
|
|
ECHECKER(ret, __mt9t112_reg_write(client, a, b))
|
|
#define mt9t112_mcu_write(ret, client, a, b) \
|
|
ECHECKER(ret, __mt9t112_mcu_write(client, a, b))
|
|
|
|
#define mt9t112_reg_mask_set(ret, client, a, b, c) \
|
|
ECHECKER(ret, __mt9t112_reg_mask_set(client, a, b, c))
|
|
#define mt9t112_mcu_mask_set(ret, client, a, b, c) \
|
|
ECHECKER(ret, __mt9t112_mcu_mask_set(client, a, b, c))
|
|
|
|
#define mt9t112_reg_read(ret, client, a) \
|
|
ECHECKER(ret, __mt9t112_reg_read(client, a))
|
|
|
|
/*
|
|
* Logical address
|
|
*/
|
|
#define _VAR(id, offset, base) (base | (id & 0x1f) << 10 | (offset & 0x3ff))
|
|
#define VAR(id, offset) _VAR(id, offset, 0x0000)
|
|
#define VAR8(id, offset) _VAR(id, offset, 0x8000)
|
|
|
|
/************************************************************************
|
|
struct
|
|
************************************************************************/
|
|
struct mt9t112_format {
|
|
enum v4l2_mbus_pixelcode code;
|
|
enum v4l2_colorspace colorspace;
|
|
u16 fmt;
|
|
u16 order;
|
|
};
|
|
|
|
struct mt9t112_priv {
|
|
struct v4l2_subdev subdev;
|
|
struct mt9t112_camera_info *info;
|
|
struct i2c_client *client;
|
|
struct v4l2_rect frame;
|
|
const struct mt9t112_format *format;
|
|
int model;
|
|
u32 flags;
|
|
/* for flags */
|
|
#define INIT_DONE (1 << 0)
|
|
#define PCLK_RISING (1 << 1)
|
|
};
|
|
|
|
/************************************************************************
|
|
supported format
|
|
************************************************************************/
|
|
|
|
static const struct mt9t112_format mt9t112_cfmts[] = {
|
|
{
|
|
.code = V4L2_MBUS_FMT_UYVY8_2X8,
|
|
.colorspace = V4L2_COLORSPACE_JPEG,
|
|
.fmt = 1,
|
|
.order = 0,
|
|
}, {
|
|
.code = V4L2_MBUS_FMT_VYUY8_2X8,
|
|
.colorspace = V4L2_COLORSPACE_JPEG,
|
|
.fmt = 1,
|
|
.order = 1,
|
|
}, {
|
|
.code = V4L2_MBUS_FMT_YUYV8_2X8,
|
|
.colorspace = V4L2_COLORSPACE_JPEG,
|
|
.fmt = 1,
|
|
.order = 2,
|
|
}, {
|
|
.code = V4L2_MBUS_FMT_YVYU8_2X8,
|
|
.colorspace = V4L2_COLORSPACE_JPEG,
|
|
.fmt = 1,
|
|
.order = 3,
|
|
}, {
|
|
.code = V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE,
|
|
.colorspace = V4L2_COLORSPACE_SRGB,
|
|
.fmt = 8,
|
|
.order = 2,
|
|
}, {
|
|
.code = V4L2_MBUS_FMT_RGB565_2X8_LE,
|
|
.colorspace = V4L2_COLORSPACE_SRGB,
|
|
.fmt = 4,
|
|
.order = 2,
|
|
},
|
|
};
|
|
|
|
/************************************************************************
|
|
general function
|
|
************************************************************************/
|
|
static struct mt9t112_priv *to_mt9t112(const struct i2c_client *client)
|
|
{
|
|
return container_of(i2c_get_clientdata(client),
|
|
struct mt9t112_priv,
|
|
subdev);
|
|
}
|
|
|
|
static int __mt9t112_reg_read(const struct i2c_client *client, u16 command)
|
|
{
|
|
struct i2c_msg msg[2];
|
|
u8 buf[2];
|
|
int ret;
|
|
|
|
command = swab16(command);
|
|
|
|
msg[0].addr = client->addr;
|
|
msg[0].flags = 0;
|
|
msg[0].len = 2;
|
|
msg[0].buf = (u8 *)&command;
|
|
|
|
msg[1].addr = client->addr;
|
|
msg[1].flags = I2C_M_RD;
|
|
msg[1].len = 2;
|
|
msg[1].buf = buf;
|
|
|
|
/*
|
|
* if return value of this function is < 0,
|
|
* it mean error.
|
|
* else, under 16bit is valid data.
|
|
*/
|
|
ret = i2c_transfer(client->adapter, msg, 2);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
memcpy(&ret, buf, 2);
|
|
return swab16(ret);
|
|
}
|
|
|
|
static int __mt9t112_reg_write(const struct i2c_client *client,
|
|
u16 command, u16 data)
|
|
{
|
|
struct i2c_msg msg;
|
|
u8 buf[4];
|
|
int ret;
|
|
|
|
command = swab16(command);
|
|
data = swab16(data);
|
|
|
|
memcpy(buf + 0, &command, 2);
|
|
memcpy(buf + 2, &data, 2);
|
|
|
|
msg.addr = client->addr;
|
|
msg.flags = 0;
|
|
msg.len = 4;
|
|
msg.buf = buf;
|
|
|
|
/*
|
|
* i2c_transfer return message length,
|
|
* but this function should return 0 if correct case
|
|
*/
|
|
ret = i2c_transfer(client->adapter, &msg, 1);
|
|
if (ret >= 0)
|
|
ret = 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int __mt9t112_reg_mask_set(const struct i2c_client *client,
|
|
u16 command,
|
|
u16 mask,
|
|
u16 set)
|
|
{
|
|
int val = __mt9t112_reg_read(client, command);
|
|
if (val < 0)
|
|
return val;
|
|
|
|
val &= ~mask;
|
|
val |= set & mask;
|
|
|
|
return __mt9t112_reg_write(client, command, val);
|
|
}
|
|
|
|
/* mcu access */
|
|
static int __mt9t112_mcu_read(const struct i2c_client *client, u16 command)
|
|
{
|
|
int ret;
|
|
|
|
ret = __mt9t112_reg_write(client, 0x098E, command);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return __mt9t112_reg_read(client, 0x0990);
|
|
}
|
|
|
|
static int __mt9t112_mcu_write(const struct i2c_client *client,
|
|
u16 command, u16 data)
|
|
{
|
|
int ret;
|
|
|
|
ret = __mt9t112_reg_write(client, 0x098E, command);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return __mt9t112_reg_write(client, 0x0990, data);
|
|
}
|
|
|
|
static int __mt9t112_mcu_mask_set(const struct i2c_client *client,
|
|
u16 command,
|
|
u16 mask,
|
|
u16 set)
|
|
{
|
|
int val = __mt9t112_mcu_read(client, command);
|
|
if (val < 0)
|
|
return val;
|
|
|
|
val &= ~mask;
|
|
val |= set & mask;
|
|
|
|
return __mt9t112_mcu_write(client, command, val);
|
|
}
|
|
|
|
static int mt9t112_reset(const struct i2c_client *client)
|
|
{
|
|
int ret;
|
|
|
|
mt9t112_reg_mask_set(ret, client, 0x001a, 0x0001, 0x0001);
|
|
msleep(1);
|
|
mt9t112_reg_mask_set(ret, client, 0x001a, 0x0001, 0x0000);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifndef EXT_CLOCK
|
|
#define CLOCK_INFO(a, b)
|
|
#else
|
|
#define CLOCK_INFO(a, b) mt9t112_clock_info(a, b)
|
|
static int mt9t112_clock_info(const struct i2c_client *client, u32 ext)
|
|
{
|
|
int m, n, p1, p2, p3, p4, p5, p6, p7;
|
|
u32 vco, clk;
|
|
char *enable;
|
|
|
|
ext /= 1000; /* kbyte order */
|
|
|
|
mt9t112_reg_read(n, client, 0x0012);
|
|
p1 = n & 0x000f;
|
|
n = n >> 4;
|
|
p2 = n & 0x000f;
|
|
n = n >> 4;
|
|
p3 = n & 0x000f;
|
|
|
|
mt9t112_reg_read(n, client, 0x002a);
|
|
p4 = n & 0x000f;
|
|
n = n >> 4;
|
|
p5 = n & 0x000f;
|
|
n = n >> 4;
|
|
p6 = n & 0x000f;
|
|
|
|
mt9t112_reg_read(n, client, 0x002c);
|
|
p7 = n & 0x000f;
|
|
|
|
mt9t112_reg_read(n, client, 0x0010);
|
|
m = n & 0x00ff;
|
|
n = (n >> 8) & 0x003f;
|
|
|
|
enable = ((6000 > ext) || (54000 < ext)) ? "X" : "";
|
|
dev_dbg(&client->dev, "EXTCLK : %10u K %s\n", ext, enable);
|
|
|
|
vco = 2 * m * ext / (n+1);
|
|
enable = ((384000 > vco) || (768000 < vco)) ? "X" : "";
|
|
dev_dbg(&client->dev, "VCO : %10u K %s\n", vco, enable);
|
|
|
|
clk = vco / (p1+1) / (p2+1);
|
|
enable = (96000 < clk) ? "X" : "";
|
|
dev_dbg(&client->dev, "PIXCLK : %10u K %s\n", clk, enable);
|
|
|
|
clk = vco / (p3+1);
|
|
enable = (768000 < clk) ? "X" : "";
|
|
dev_dbg(&client->dev, "MIPICLK : %10u K %s\n", clk, enable);
|
|
|
|
clk = vco / (p6+1);
|
|
enable = (96000 < clk) ? "X" : "";
|
|
dev_dbg(&client->dev, "MCU CLK : %10u K %s\n", clk, enable);
|
|
|
|
clk = vco / (p5+1);
|
|
enable = (54000 < clk) ? "X" : "";
|
|
dev_dbg(&client->dev, "SOC CLK : %10u K %s\n", clk, enable);
|
|
|
|
clk = vco / (p4+1);
|
|
enable = (70000 < clk) ? "X" : "";
|
|
dev_dbg(&client->dev, "Sensor CLK : %10u K %s\n", clk, enable);
|
|
|
|
clk = vco / (p7+1);
|
|
dev_dbg(&client->dev, "External sensor : %10u K\n", clk);
|
|
|
|
clk = ext / (n+1);
|
|
enable = ((2000 > clk) || (24000 < clk)) ? "X" : "";
|
|
dev_dbg(&client->dev, "PFD : %10u K %s\n", clk, enable);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static void mt9t112_frame_check(u32 *width, u32 *height, u32 *left, u32 *top)
|
|
{
|
|
soc_camera_limit_side(left, width, 0, 0, MAX_WIDTH);
|
|
soc_camera_limit_side(top, height, 0, 0, MAX_HEIGHT);
|
|
}
|
|
|
|
static int mt9t112_set_a_frame_size(const struct i2c_client *client,
|
|
u16 width,
|
|
u16 height)
|
|
{
|
|
int ret;
|
|
u16 wstart = (MAX_WIDTH - width) / 2;
|
|
u16 hstart = (MAX_HEIGHT - height) / 2;
|
|
|
|
/* (Context A) Image Width/Height */
|
|
mt9t112_mcu_write(ret, client, VAR(26, 0), width);
|
|
mt9t112_mcu_write(ret, client, VAR(26, 2), height);
|
|
|
|
/* (Context A) Output Width/Height */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 43), 8 + width);
|
|
mt9t112_mcu_write(ret, client, VAR(18, 45), 8 + height);
|
|
|
|
/* (Context A) Start Row/Column */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 2), 4 + hstart);
|
|
mt9t112_mcu_write(ret, client, VAR(18, 4), 4 + wstart);
|
|
|
|
/* (Context A) End Row/Column */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 6), 11 + height + hstart);
|
|
mt9t112_mcu_write(ret, client, VAR(18, 8), 11 + width + wstart);
|
|
|
|
mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x06);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9t112_set_pll_dividers(const struct i2c_client *client,
|
|
u8 m, u8 n,
|
|
u8 p1, u8 p2, u8 p3,
|
|
u8 p4, u8 p5, u8 p6,
|
|
u8 p7)
|
|
{
|
|
int ret;
|
|
u16 val;
|
|
|
|
/* N/M */
|
|
val = (n << 8) |
|
|
(m << 0);
|
|
mt9t112_reg_mask_set(ret, client, 0x0010, 0x3fff, val);
|
|
|
|
/* P1/P2/P3 */
|
|
val = ((p3 & 0x0F) << 8) |
|
|
((p2 & 0x0F) << 4) |
|
|
((p1 & 0x0F) << 0);
|
|
mt9t112_reg_mask_set(ret, client, 0x0012, 0x0fff, val);
|
|
|
|
/* P4/P5/P6 */
|
|
val = (0x7 << 12) |
|
|
((p6 & 0x0F) << 8) |
|
|
((p5 & 0x0F) << 4) |
|
|
((p4 & 0x0F) << 0);
|
|
mt9t112_reg_mask_set(ret, client, 0x002A, 0x7fff, val);
|
|
|
|
/* P7 */
|
|
val = (0x1 << 12) |
|
|
((p7 & 0x0F) << 0);
|
|
mt9t112_reg_mask_set(ret, client, 0x002C, 0x100f, val);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9t112_init_pll(const struct i2c_client *client)
|
|
{
|
|
struct mt9t112_priv *priv = to_mt9t112(client);
|
|
int data, i, ret;
|
|
|
|
mt9t112_reg_mask_set(ret, client, 0x0014, 0x003, 0x0001);
|
|
|
|
/* PLL control: BYPASS PLL = 8517 */
|
|
mt9t112_reg_write(ret, client, 0x0014, 0x2145);
|
|
|
|
/* Replace these registers when new timing parameters are generated */
|
|
mt9t112_set_pll_dividers(client,
|
|
priv->info->divider.m,
|
|
priv->info->divider.n,
|
|
priv->info->divider.p1,
|
|
priv->info->divider.p2,
|
|
priv->info->divider.p3,
|
|
priv->info->divider.p4,
|
|
priv->info->divider.p5,
|
|
priv->info->divider.p6,
|
|
priv->info->divider.p7);
|
|
|
|
/*
|
|
* TEST_BYPASS on
|
|
* PLL_ENABLE on
|
|
* SEL_LOCK_DET on
|
|
* TEST_BYPASS off
|
|
*/
|
|
mt9t112_reg_write(ret, client, 0x0014, 0x2525);
|
|
mt9t112_reg_write(ret, client, 0x0014, 0x2527);
|
|
mt9t112_reg_write(ret, client, 0x0014, 0x3427);
|
|
mt9t112_reg_write(ret, client, 0x0014, 0x3027);
|
|
|
|
mdelay(10);
|
|
|
|
/*
|
|
* PLL_BYPASS off
|
|
* Reference clock count
|
|
* I2C Master Clock Divider
|
|
*/
|
|
mt9t112_reg_write(ret, client, 0x0014, 0x3046);
|
|
mt9t112_reg_write(ret, client, 0x0022, 0x0190);
|
|
mt9t112_reg_write(ret, client, 0x3B84, 0x0212);
|
|
|
|
/* External sensor clock is PLL bypass */
|
|
mt9t112_reg_write(ret, client, 0x002E, 0x0500);
|
|
|
|
mt9t112_reg_mask_set(ret, client, 0x0018, 0x0002, 0x0002);
|
|
mt9t112_reg_mask_set(ret, client, 0x3B82, 0x0004, 0x0004);
|
|
|
|
/* MCU disabled */
|
|
mt9t112_reg_mask_set(ret, client, 0x0018, 0x0004, 0x0004);
|
|
|
|
/* out of standby */
|
|
mt9t112_reg_mask_set(ret, client, 0x0018, 0x0001, 0);
|
|
|
|
mdelay(50);
|
|
|
|
/*
|
|
* Standby Workaround
|
|
* Disable Secondary I2C Pads
|
|
*/
|
|
mt9t112_reg_write(ret, client, 0x0614, 0x0001);
|
|
mdelay(1);
|
|
mt9t112_reg_write(ret, client, 0x0614, 0x0001);
|
|
mdelay(1);
|
|
mt9t112_reg_write(ret, client, 0x0614, 0x0001);
|
|
mdelay(1);
|
|
mt9t112_reg_write(ret, client, 0x0614, 0x0001);
|
|
mdelay(1);
|
|
mt9t112_reg_write(ret, client, 0x0614, 0x0001);
|
|
mdelay(1);
|
|
mt9t112_reg_write(ret, client, 0x0614, 0x0001);
|
|
mdelay(1);
|
|
|
|
/* poll to verify out of standby. Must Poll this bit */
|
|
for (i = 0; i < 100; i++) {
|
|
mt9t112_reg_read(data, client, 0x0018);
|
|
if (!(0x4000 & data))
|
|
break;
|
|
|
|
mdelay(10);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9t112_init_setting(const struct i2c_client *client)
|
|
{
|
|
|
|
int ret;
|
|
|
|
/* Adaptive Output Clock (A) */
|
|
mt9t112_mcu_mask_set(ret, client, VAR(26, 160), 0x0040, 0x0000);
|
|
|
|
/* Read Mode (A) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 12), 0x0024);
|
|
|
|
/* Fine Correction (A) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 15), 0x00CC);
|
|
|
|
/* Fine IT Min (A) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 17), 0x01f1);
|
|
|
|
/* Fine IT Max Margin (A) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 19), 0x00fF);
|
|
|
|
/* Base Frame Lines (A) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 29), 0x032D);
|
|
|
|
/* Min Line Length (A) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 31), 0x073a);
|
|
|
|
/* Line Length (A) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 37), 0x07d0);
|
|
|
|
/* Adaptive Output Clock (B) */
|
|
mt9t112_mcu_mask_set(ret, client, VAR(27, 160), 0x0040, 0x0000);
|
|
|
|
/* Row Start (B) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 74), 0x004);
|
|
|
|
/* Column Start (B) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 76), 0x004);
|
|
|
|
/* Row End (B) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 78), 0x60B);
|
|
|
|
/* Column End (B) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 80), 0x80B);
|
|
|
|
/* Fine Correction (B) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 87), 0x008C);
|
|
|
|
/* Fine IT Min (B) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 89), 0x01F1);
|
|
|
|
/* Fine IT Max Margin (B) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 91), 0x00FF);
|
|
|
|
/* Base Frame Lines (B) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 101), 0x0668);
|
|
|
|
/* Min Line Length (B) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 103), 0x0AF0);
|
|
|
|
/* Line Length (B) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 109), 0x0AF0);
|
|
|
|
/*
|
|
* Flicker Dectection registers
|
|
* This section should be replaced whenever new Timing file is generated
|
|
* All the following registers need to be replaced
|
|
* Following registers are generated from Register Wizard but user can
|
|
* modify them. For detail see auto flicker detection tuning
|
|
*/
|
|
|
|
/* FD_FDPERIOD_SELECT */
|
|
mt9t112_mcu_write(ret, client, VAR8(8, 5), 0x01);
|
|
|
|
/* PRI_B_CONFIG_FD_ALGO_RUN */
|
|
mt9t112_mcu_write(ret, client, VAR(27, 17), 0x0003);
|
|
|
|
/* PRI_A_CONFIG_FD_ALGO_RUN */
|
|
mt9t112_mcu_write(ret, client, VAR(26, 17), 0x0003);
|
|
|
|
/*
|
|
* AFD range detection tuning registers
|
|
*/
|
|
|
|
/* search_f1_50 */
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 165), 0x25);
|
|
|
|
/* search_f2_50 */
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 166), 0x28);
|
|
|
|
/* search_f1_60 */
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 167), 0x2C);
|
|
|
|
/* search_f2_60 */
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 168), 0x2F);
|
|
|
|
/* period_50Hz (A) */
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 68), 0xBA);
|
|
|
|
/* secret register by aptina */
|
|
/* period_50Hz (A MSB) */
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 303), 0x00);
|
|
|
|
/* period_60Hz (A) */
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 69), 0x9B);
|
|
|
|
/* secret register by aptina */
|
|
/* period_60Hz (A MSB) */
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 301), 0x00);
|
|
|
|
/* period_50Hz (B) */
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 140), 0x82);
|
|
|
|
/* secret register by aptina */
|
|
/* period_50Hz (B) MSB */
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 304), 0x00);
|
|
|
|
/* period_60Hz (B) */
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 141), 0x6D);
|
|
|
|
/* secret register by aptina */
|
|
/* period_60Hz (B) MSB */
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 302), 0x00);
|
|
|
|
/* FD Mode */
|
|
mt9t112_mcu_write(ret, client, VAR8(8, 2), 0x10);
|
|
|
|
/* Stat_min */
|
|
mt9t112_mcu_write(ret, client, VAR8(8, 9), 0x02);
|
|
|
|
/* Stat_max */
|
|
mt9t112_mcu_write(ret, client, VAR8(8, 10), 0x03);
|
|
|
|
/* Min_amplitude */
|
|
mt9t112_mcu_write(ret, client, VAR8(8, 12), 0x0A);
|
|
|
|
/* RX FIFO Watermark (A) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 70), 0x0014);
|
|
|
|
/* RX FIFO Watermark (B) */
|
|
mt9t112_mcu_write(ret, client, VAR(18, 142), 0x0014);
|
|
|
|
/* MCLK: 16MHz
|
|
* PCLK: 73MHz
|
|
* CorePixCLK: 36.5 MHz
|
|
*/
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 0x0044), 133);
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 0x0045), 110);
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 0x008c), 130);
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 0x008d), 108);
|
|
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 0x00A5), 27);
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 0x00a6), 30);
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 0x00a7), 32);
|
|
mt9t112_mcu_write(ret, client, VAR8(18, 0x00a8), 35);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9t112_auto_focus_setting(const struct i2c_client *client)
|
|
{
|
|
int ret;
|
|
|
|
mt9t112_mcu_write(ret, client, VAR(12, 13), 0x000F);
|
|
mt9t112_mcu_write(ret, client, VAR(12, 23), 0x0F0F);
|
|
mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x06);
|
|
|
|
mt9t112_reg_write(ret, client, 0x0614, 0x0000);
|
|
|
|
mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x05);
|
|
mt9t112_mcu_write(ret, client, VAR8(12, 2), 0x02);
|
|
mt9t112_mcu_write(ret, client, VAR(12, 3), 0x0002);
|
|
mt9t112_mcu_write(ret, client, VAR(17, 3), 0x8001);
|
|
mt9t112_mcu_write(ret, client, VAR(17, 11), 0x0025);
|
|
mt9t112_mcu_write(ret, client, VAR(17, 13), 0x0193);
|
|
mt9t112_mcu_write(ret, client, VAR8(17, 33), 0x18);
|
|
mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x05);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9t112_auto_focus_trigger(const struct i2c_client *client)
|
|
{
|
|
int ret;
|
|
|
|
mt9t112_mcu_write(ret, client, VAR8(12, 25), 0x01);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9t112_init_camera(const struct i2c_client *client)
|
|
{
|
|
int ret;
|
|
|
|
ECHECKER(ret, mt9t112_reset(client));
|
|
|
|
ECHECKER(ret, mt9t112_init_pll(client));
|
|
|
|
ECHECKER(ret, mt9t112_init_setting(client));
|
|
|
|
ECHECKER(ret, mt9t112_auto_focus_setting(client));
|
|
|
|
mt9t112_reg_mask_set(ret, client, 0x0018, 0x0004, 0);
|
|
|
|
/* Analog setting B */
|
|
mt9t112_reg_write(ret, client, 0x3084, 0x2409);
|
|
mt9t112_reg_write(ret, client, 0x3092, 0x0A49);
|
|
mt9t112_reg_write(ret, client, 0x3094, 0x4949);
|
|
mt9t112_reg_write(ret, client, 0x3096, 0x4950);
|
|
|
|
/*
|
|
* Disable adaptive clock
|
|
* PRI_A_CONFIG_JPEG_OB_TX_CONTROL_VAR
|
|
* PRI_B_CONFIG_JPEG_OB_TX_CONTROL_VAR
|
|
*/
|
|
mt9t112_mcu_write(ret, client, VAR(26, 160), 0x0A2E);
|
|
mt9t112_mcu_write(ret, client, VAR(27, 160), 0x0A2E);
|
|
|
|
/* Configure STatus in Status_before_length Format and enable header */
|
|
/* PRI_B_CONFIG_JPEG_OB_TX_CONTROL_VAR */
|
|
mt9t112_mcu_write(ret, client, VAR(27, 144), 0x0CB4);
|
|
|
|
/* Enable JPEG in context B */
|
|
/* PRI_B_CONFIG_JPEG_OB_TX_CONTROL_VAR */
|
|
mt9t112_mcu_write(ret, client, VAR8(27, 142), 0x01);
|
|
|
|
/* Disable Dac_TXLO */
|
|
mt9t112_reg_write(ret, client, 0x316C, 0x350F);
|
|
|
|
/* Set max slew rates */
|
|
mt9t112_reg_write(ret, client, 0x1E, 0x777);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/************************************************************************
|
|
v4l2_subdev_core_ops
|
|
************************************************************************/
|
|
static int mt9t112_g_chip_ident(struct v4l2_subdev *sd,
|
|
struct v4l2_dbg_chip_ident *id)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct mt9t112_priv *priv = to_mt9t112(client);
|
|
|
|
id->ident = priv->model;
|
|
id->revision = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
static int mt9t112_g_register(struct v4l2_subdev *sd,
|
|
struct v4l2_dbg_register *reg)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
int ret;
|
|
|
|
reg->size = 2;
|
|
mt9t112_reg_read(ret, client, reg->reg);
|
|
|
|
reg->val = (__u64)ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt9t112_s_register(struct v4l2_subdev *sd,
|
|
struct v4l2_dbg_register *reg)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
int ret;
|
|
|
|
mt9t112_reg_write(ret, client, reg->reg, reg->val);
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
static struct v4l2_subdev_core_ops mt9t112_subdev_core_ops = {
|
|
.g_chip_ident = mt9t112_g_chip_ident,
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
.g_register = mt9t112_g_register,
|
|
.s_register = mt9t112_s_register,
|
|
#endif
|
|
};
|
|
|
|
|
|
/************************************************************************
|
|
v4l2_subdev_video_ops
|
|
************************************************************************/
|
|
static int mt9t112_s_stream(struct v4l2_subdev *sd, int enable)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct mt9t112_priv *priv = to_mt9t112(client);
|
|
int ret = 0;
|
|
|
|
if (!enable) {
|
|
/* FIXME
|
|
*
|
|
* If user selected large output size,
|
|
* and used it long time,
|
|
* mt9t112 camera will be very warm.
|
|
*
|
|
* But current driver can not stop mt9t112 camera.
|
|
* So, set small size here to solve this problem.
|
|
*/
|
|
mt9t112_set_a_frame_size(client, VGA_WIDTH, VGA_HEIGHT);
|
|
return ret;
|
|
}
|
|
|
|
if (!(priv->flags & INIT_DONE)) {
|
|
u16 param = PCLK_RISING & priv->flags ? 0x0001 : 0x0000;
|
|
|
|
ECHECKER(ret, mt9t112_init_camera(client));
|
|
|
|
/* Invert PCLK (Data sampled on falling edge of pixclk) */
|
|
mt9t112_reg_write(ret, client, 0x3C20, param);
|
|
|
|
mdelay(5);
|
|
|
|
priv->flags |= INIT_DONE;
|
|
}
|
|
|
|
mt9t112_mcu_write(ret, client, VAR(26, 7), priv->format->fmt);
|
|
mt9t112_mcu_write(ret, client, VAR(26, 9), priv->format->order);
|
|
mt9t112_mcu_write(ret, client, VAR8(1, 0), 0x06);
|
|
|
|
mt9t112_set_a_frame_size(client,
|
|
priv->frame.width,
|
|
priv->frame.height);
|
|
|
|
ECHECKER(ret, mt9t112_auto_focus_trigger(client));
|
|
|
|
dev_dbg(&client->dev, "format : %d\n", priv->format->code);
|
|
dev_dbg(&client->dev, "size : %d x %d\n",
|
|
priv->frame.width,
|
|
priv->frame.height);
|
|
|
|
CLOCK_INFO(client, EXT_CLOCK);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9t112_set_params(struct mt9t112_priv *priv,
|
|
const struct v4l2_rect *rect,
|
|
enum v4l2_mbus_pixelcode code)
|
|
{
|
|
int i;
|
|
|
|
/*
|
|
* get color format
|
|
*/
|
|
for (i = 0; i < ARRAY_SIZE(mt9t112_cfmts); i++)
|
|
if (mt9t112_cfmts[i].code == code)
|
|
break;
|
|
|
|
if (i == ARRAY_SIZE(mt9t112_cfmts))
|
|
return -EINVAL;
|
|
|
|
priv->frame = *rect;
|
|
|
|
/*
|
|
* frame size check
|
|
*/
|
|
mt9t112_frame_check(&priv->frame.width, &priv->frame.height,
|
|
&priv->frame.left, &priv->frame.top);
|
|
|
|
priv->format = mt9t112_cfmts + i;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt9t112_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
|
|
{
|
|
a->bounds.left = 0;
|
|
a->bounds.top = 0;
|
|
a->bounds.width = MAX_WIDTH;
|
|
a->bounds.height = MAX_HEIGHT;
|
|
a->defrect.left = 0;
|
|
a->defrect.top = 0;
|
|
a->defrect.width = VGA_WIDTH;
|
|
a->defrect.height = VGA_HEIGHT;
|
|
a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
a->pixelaspect.numerator = 1;
|
|
a->pixelaspect.denominator = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt9t112_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct mt9t112_priv *priv = to_mt9t112(client);
|
|
|
|
a->c = priv->frame;
|
|
a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt9t112_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct mt9t112_priv *priv = to_mt9t112(client);
|
|
struct v4l2_rect *rect = &a->c;
|
|
|
|
return mt9t112_set_params(priv, rect, priv->format->code);
|
|
}
|
|
|
|
static int mt9t112_g_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *mf)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct mt9t112_priv *priv = to_mt9t112(client);
|
|
|
|
mf->width = priv->frame.width;
|
|
mf->height = priv->frame.height;
|
|
mf->colorspace = priv->format->colorspace;
|
|
mf->code = priv->format->code;
|
|
mf->field = V4L2_FIELD_NONE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt9t112_s_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *mf)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct mt9t112_priv *priv = to_mt9t112(client);
|
|
struct v4l2_rect rect = {
|
|
.width = mf->width,
|
|
.height = mf->height,
|
|
.left = priv->frame.left,
|
|
.top = priv->frame.top,
|
|
};
|
|
int ret;
|
|
|
|
ret = mt9t112_set_params(priv, &rect, mf->code);
|
|
|
|
if (!ret)
|
|
mf->colorspace = priv->format->colorspace;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9t112_try_fmt(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_framefmt *mf)
|
|
{
|
|
unsigned int top, left;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(mt9t112_cfmts); i++)
|
|
if (mt9t112_cfmts[i].code == mf->code)
|
|
break;
|
|
|
|
if (i == ARRAY_SIZE(mt9t112_cfmts)) {
|
|
mf->code = V4L2_MBUS_FMT_UYVY8_2X8;
|
|
mf->colorspace = V4L2_COLORSPACE_JPEG;
|
|
} else {
|
|
mf->colorspace = mt9t112_cfmts[i].colorspace;
|
|
}
|
|
|
|
mt9t112_frame_check(&mf->width, &mf->height, &left, &top);
|
|
|
|
mf->field = V4L2_FIELD_NONE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt9t112_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
|
|
enum v4l2_mbus_pixelcode *code)
|
|
{
|
|
if (index >= ARRAY_SIZE(mt9t112_cfmts))
|
|
return -EINVAL;
|
|
|
|
*code = mt9t112_cfmts[index].code;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt9t112_g_mbus_config(struct v4l2_subdev *sd,
|
|
struct v4l2_mbus_config *cfg)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
|
|
|
|
cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
|
|
V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_DATA_ACTIVE_HIGH |
|
|
V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING;
|
|
cfg->type = V4L2_MBUS_PARALLEL;
|
|
cfg->flags = soc_camera_apply_board_flags(icl, cfg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt9t112_s_mbus_config(struct v4l2_subdev *sd,
|
|
const struct v4l2_mbus_config *cfg)
|
|
{
|
|
struct i2c_client *client = v4l2_get_subdevdata(sd);
|
|
struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
|
|
struct mt9t112_priv *priv = to_mt9t112(client);
|
|
|
|
if (soc_camera_apply_board_flags(icl, cfg) & V4L2_MBUS_PCLK_SAMPLE_RISING)
|
|
priv->flags |= PCLK_RISING;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct v4l2_subdev_video_ops mt9t112_subdev_video_ops = {
|
|
.s_stream = mt9t112_s_stream,
|
|
.g_mbus_fmt = mt9t112_g_fmt,
|
|
.s_mbus_fmt = mt9t112_s_fmt,
|
|
.try_mbus_fmt = mt9t112_try_fmt,
|
|
.cropcap = mt9t112_cropcap,
|
|
.g_crop = mt9t112_g_crop,
|
|
.s_crop = mt9t112_s_crop,
|
|
.enum_mbus_fmt = mt9t112_enum_fmt,
|
|
.g_mbus_config = mt9t112_g_mbus_config,
|
|
.s_mbus_config = mt9t112_s_mbus_config,
|
|
};
|
|
|
|
/************************************************************************
|
|
i2c driver
|
|
************************************************************************/
|
|
static struct v4l2_subdev_ops mt9t112_subdev_ops = {
|
|
.core = &mt9t112_subdev_core_ops,
|
|
.video = &mt9t112_subdev_video_ops,
|
|
};
|
|
|
|
static int mt9t112_camera_probe(struct i2c_client *client)
|
|
{
|
|
struct mt9t112_priv *priv = to_mt9t112(client);
|
|
const char *devname;
|
|
int chipid;
|
|
|
|
/*
|
|
* check and show chip ID
|
|
*/
|
|
mt9t112_reg_read(chipid, client, 0x0000);
|
|
|
|
switch (chipid) {
|
|
case 0x2680:
|
|
devname = "mt9t111";
|
|
priv->model = V4L2_IDENT_MT9T111;
|
|
break;
|
|
case 0x2682:
|
|
devname = "mt9t112";
|
|
priv->model = V4L2_IDENT_MT9T112;
|
|
break;
|
|
default:
|
|
dev_err(&client->dev, "Product ID error %04x\n", chipid);
|
|
return -ENODEV;
|
|
}
|
|
|
|
dev_info(&client->dev, "%s chip ID %04x\n", devname, chipid);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mt9t112_probe(struct i2c_client *client,
|
|
const struct i2c_device_id *did)
|
|
{
|
|
struct mt9t112_priv *priv;
|
|
struct soc_camera_link *icl = soc_camera_i2c_to_link(client);
|
|
struct v4l2_rect rect = {
|
|
.width = VGA_WIDTH,
|
|
.height = VGA_HEIGHT,
|
|
.left = (MAX_WIDTH - VGA_WIDTH) / 2,
|
|
.top = (MAX_HEIGHT - VGA_HEIGHT) / 2,
|
|
};
|
|
int ret;
|
|
|
|
if (!icl || !icl->priv) {
|
|
dev_err(&client->dev, "mt9t112: missing platform data!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
priv->info = icl->priv;
|
|
|
|
v4l2_i2c_subdev_init(&priv->subdev, client, &mt9t112_subdev_ops);
|
|
|
|
ret = mt9t112_camera_probe(client);
|
|
if (ret)
|
|
kfree(priv);
|
|
|
|
/* Cannot fail: using the default supported pixel code */
|
|
mt9t112_set_params(priv, &rect, V4L2_MBUS_FMT_UYVY8_2X8);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int mt9t112_remove(struct i2c_client *client)
|
|
{
|
|
struct mt9t112_priv *priv = to_mt9t112(client);
|
|
|
|
kfree(priv);
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id mt9t112_id[] = {
|
|
{ "mt9t112", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, mt9t112_id);
|
|
|
|
static struct i2c_driver mt9t112_i2c_driver = {
|
|
.driver = {
|
|
.name = "mt9t112",
|
|
},
|
|
.probe = mt9t112_probe,
|
|
.remove = mt9t112_remove,
|
|
.id_table = mt9t112_id,
|
|
};
|
|
|
|
/************************************************************************
|
|
module function
|
|
************************************************************************/
|
|
static int __init mt9t112_module_init(void)
|
|
{
|
|
return i2c_add_driver(&mt9t112_i2c_driver);
|
|
}
|
|
|
|
static void __exit mt9t112_module_exit(void)
|
|
{
|
|
i2c_del_driver(&mt9t112_i2c_driver);
|
|
}
|
|
|
|
module_init(mt9t112_module_init);
|
|
module_exit(mt9t112_module_exit);
|
|
|
|
MODULE_DESCRIPTION("SoC Camera driver for mt9t112");
|
|
MODULE_AUTHOR("Kuninori Morimoto");
|
|
MODULE_LICENSE("GPL v2");
|