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android_kernel_cmhtcleo/drivers/media/video/msm/mt9t013.c
Markinus e34adb00cb Add EVOs source as default
2010-08-27 11:19:57 +02:00

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/* Copyright (c) 2009, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*/
#include <linux/delay.h>
#include <linux/types.h>
#include <linux/i2c.h>
#include <linux/uaccess.h>
#include <linux/miscdevice.h>
#include <linux/kernel.h>
#include <media/msm_camera.h>
#include <mach/gpio.h>
#include <mach/camera.h>
#include <asm/mach-types.h>
#include "mt9t013.h"
/*=============================================================
SENSOR REGISTER DEFINES
==============================================================*/
#define MT9T013_REG_MODEL_ID 0x0000
#define MT9T013_MODEL_ID 0x2600
#define REG_GROUPED_PARAMETER_HOLD 0x0104
#define GROUPED_PARAMETER_HOLD 0x0100
#define GROUPED_PARAMETER_UPDATE 0x0000
#define REG_COARSE_INT_TIME 0x3012
#define REG_VT_PIX_CLK_DIV 0x0300
#define REG_VT_SYS_CLK_DIV 0x0302
#define REG_PRE_PLL_CLK_DIV 0x0304
#define REG_PLL_MULTIPLIER 0x0306
#define REG_OP_PIX_CLK_DIV 0x0308
#define REG_OP_SYS_CLK_DIV 0x030A
#define REG_SCALE_M 0x0404
#define REG_FRAME_LENGTH_LINES 0x300A
#define REG_LINE_LENGTH_PCK 0x300C
#define REG_X_ADDR_START 0x3004
#define REG_Y_ADDR_START 0x3002
#define REG_X_ADDR_END 0x3008
#define REG_Y_ADDR_END 0x3006
#define REG_X_OUTPUT_SIZE 0x034C
#define REG_Y_OUTPUT_SIZE 0x034E
#define REG_FINE_INT_TIME 0x3014
#define REG_ROW_SPEED 0x3016
#define MT9T013_REG_RESET_REGISTER 0x301A
#define MT9T013_RESET_REGISTER_PWON 0x10CC
#define MT9T013_RESET_REGISTER_PWOFF 0x1008 /* 0x10C8 stop streaming */
#define REG_READ_MODE 0x3040
#define REG_GLOBAL_GAIN 0x305E
#define REG_TEST_PATTERN_MODE 0x3070
enum mt9t013_test_mode {
TEST_OFF,
TEST_1,
TEST_2,
TEST_3
};
enum mt9t013_resolution {
QTR_SIZE,
FULL_SIZE,
INVALID_SIZE
};
enum mt9t013_reg_update {
REG_INIT, /* registers that need to be updated during initialization */
UPDATE_PERIODIC, /* registers that needs periodic I2C writes */
UPDATE_ALL, /* all registers will be updated */
UPDATE_INVALID
};
enum mt9t013_setting {
RES_PREVIEW,
RES_CAPTURE
};
/* actuator's Slave Address */
#define MT9T013_AF_I2C_ADDR 0x18
/*
* AF Total steps parameters
*/
#define MT9T013_TOTAL_STEPS_NEAR_TO_FAR 30
/*
* Time in milisecs for waiting for the sensor to reset.
*/
#define MT9T013_RESET_DELAY_MSECS 66
/* for 30 fps preview */
#define MT9T013_DEFAULT_CLOCK_RATE 24000000
#define MT9T013_DEFAULT_MAX_FPS 26
/* FIXME: Changes from here */
struct mt9t013_work {
struct work_struct work;
};
static struct mt9t013_work *mt9t013_sensorw;
static struct i2c_client *mt9t013_client;
struct mt9t013_ctrl {
const struct msm_camera_sensor_info *sensordata;
int sensormode;
uint32_t fps_divider; /* init to 1 * 0x00000400 */
uint32_t pict_fps_divider; /* init to 1 * 0x00000400 */
uint16_t curr_lens_pos;
uint16_t init_curr_lens_pos;
uint16_t my_reg_gain;
uint32_t my_reg_line_count;
enum mt9t013_resolution prev_res;
enum mt9t013_resolution pict_res;
enum mt9t013_resolution curr_res;
enum mt9t013_test_mode set_test;
unsigned short imgaddr;
};
static struct mt9t013_ctrl *mt9t013_ctrl;
static DECLARE_WAIT_QUEUE_HEAD(mt9t013_wait_queue);
static int mt9t013_i2c_rxdata(unsigned short saddr,
unsigned char *rxdata, int length)
{
struct i2c_msg msgs[] = {
{
.addr = saddr,
.flags = 0,
.len = 2,
.buf = rxdata,
},
{
.addr = saddr,
.flags = I2C_M_RD,
.len = length,
.buf = rxdata,
},
};
if (i2c_transfer(mt9t013_client->adapter, msgs, 2) < 0) {
pr_err("mt9t013_i2c_rxdata failed!\n");
return -EIO;
}
return 0;
}
static int mt9t013_i2c_read_w(unsigned short saddr,
unsigned short raddr, unsigned short *rdata)
{
int rc = 0;
unsigned char buf[4];
if (!rdata)
return -EIO;
memset(buf, 0, sizeof(buf));
buf[0] = (raddr & 0xFF00) >> 8;
buf[1] = (raddr & 0x00FF);
rc = mt9t013_i2c_rxdata(saddr, buf, 2);
if (rc < 0)
return rc;
*rdata = buf[0] << 8 | buf[1];
if (rc < 0)
pr_err("mt9t013_i2c_read failed!\n");
return rc;
}
static int mt9t013_i2c_txdata(unsigned short saddr,
unsigned char *txdata, int length)
{
struct i2c_msg msg[] = {
{
.addr = saddr,
.flags = 0,
.len = length,
.buf = txdata,
},
};
if (i2c_transfer(mt9t013_client->adapter, msg, 1) < 0) {
pr_err("mt9t013_i2c_txdata failed\n");
return -EIO;
}
return 0;
}
static int mt9t013_i2c_write_b(unsigned short saddr,
unsigned short waddr, unsigned short wdata)
{
int rc = -EIO;
unsigned char buf[2];
memset(buf, 0, sizeof(buf));
buf[0] = waddr;
buf[1] = wdata;
rc = mt9t013_i2c_txdata(saddr, buf, 2);
if (rc < 0)
pr_err("i2c_write failed, addr = 0x%x, val = 0x%x!\n",
waddr, wdata);
return rc;
}
static int mt9t013_i2c_write_w(unsigned short saddr,
unsigned short waddr, unsigned short wdata)
{
int rc = -EIO;
unsigned char buf[4];
memset(buf, 0, sizeof(buf));
buf[0] = (waddr & 0xFF00) >> 8;
buf[1] = (waddr & 0x00FF);
buf[2] = (wdata & 0xFF00) >> 8;
buf[3] = (wdata & 0x00FF);
rc = mt9t013_i2c_txdata(saddr, buf, 4);
if (rc < 0)
pr_err("i2c_write_w failed, addr = 0x%x, val = 0x%x!\n",
waddr, wdata);
return rc;
}
static int mt9t013_i2c_write_w_table(struct mt9t013_i2c_reg_conf
*reg_conf_tbl,
int num_of_items_in_table)
{
int i;
int rc = -EIO;
for (i = 0; i < num_of_items_in_table; i++) {
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
reg_conf_tbl->waddr,
reg_conf_tbl->wdata);
if (rc < 0)
break;
reg_conf_tbl++;
}
return rc;
}
static int mt9t013_test(enum mt9t013_test_mode mo)
{
int rc = 0;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_HOLD);
if (rc < 0)
return rc;
if (mo == TEST_OFF)
return 0;
else {
rc = mt9t013_i2c_write_w_table(mt9t013_regs.ttbl,
mt9t013_regs.ttbl_size);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_TEST_PATTERN_MODE, (uint16_t) mo);
if (rc < 0)
return rc;
}
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_UPDATE);
if (rc < 0)
return rc;
return rc;
}
static int mt9t013_set_lc(void)
{
int rc;
rc = mt9t013_i2c_write_w_table(mt9t013_regs.lctbl,
mt9t013_regs.lctbl_size);
if (rc < 0)
return rc;
return rc;
}
static int mt9t013_set_default_focus(uint8_t af_step)
{
int rc = 0;
uint8_t code_val_msb, code_val_lsb;
code_val_msb = 0x01;
code_val_lsb = af_step;
/* Write the digital code for current to the actuator */
rc = mt9t013_i2c_write_b(MT9T013_AF_I2C_ADDR >> 1,
code_val_msb, code_val_lsb);
mt9t013_ctrl->curr_lens_pos = 0;
mt9t013_ctrl->init_curr_lens_pos = 0;
return rc;
}
static void mt9t013_get_pict_fps(uint16_t fps, uint16_t *pfps)
{
/* input fps is preview fps in Q8 format */
uint32_t divider; /*Q10 */
uint32_t pclk_mult; /*Q10 */
if (mt9t013_ctrl->prev_res == QTR_SIZE) {
divider =
(uint32_t) (((mt9t013_regs.reg_pat[RES_PREVIEW].
frame_length_lines *
mt9t013_regs.reg_pat[RES_PREVIEW].
line_length_pck) * 0x00000400) /
(mt9t013_regs.reg_pat[RES_CAPTURE].
frame_length_lines *
mt9t013_regs.reg_pat[RES_CAPTURE].
line_length_pck));
pclk_mult =
(uint32_t) ((mt9t013_regs.reg_pat[RES_CAPTURE].
pll_multiplier * 0x00000400) /
(mt9t013_regs.reg_pat[RES_PREVIEW].
pll_multiplier));
} else {
/* full size resolution used for preview. */
divider = 0x00000400; /*1.0 */
pclk_mult = 0x00000400; /*1.0 */
}
/* Verify PCLK settings and frame sizes. */
*pfps =
(uint16_t) (fps * divider * pclk_mult / 0x00000400 / 0x00000400);
}
static uint16_t mt9t013_get_prev_lines_pf(void)
{
if (mt9t013_ctrl->prev_res == QTR_SIZE)
return mt9t013_regs.reg_pat[RES_PREVIEW].frame_length_lines;
else
return mt9t013_regs.reg_pat[RES_CAPTURE].frame_length_lines;
}
static uint16_t mt9t013_get_prev_pixels_pl(void)
{
if (mt9t013_ctrl->prev_res == QTR_SIZE)
return mt9t013_regs.reg_pat[RES_PREVIEW].line_length_pck;
else
return mt9t013_regs.reg_pat[RES_CAPTURE].line_length_pck;
}
static uint16_t mt9t013_get_pict_lines_pf(void)
{
return mt9t013_regs.reg_pat[RES_CAPTURE].frame_length_lines;
}
static uint16_t mt9t013_get_pict_pixels_pl(void)
{
return mt9t013_regs.reg_pat[RES_CAPTURE].line_length_pck;
}
static uint32_t mt9t013_get_pict_max_exp_lc(void)
{
uint16_t snapshot_lines_per_frame;
if (mt9t013_ctrl->pict_res == QTR_SIZE) {
snapshot_lines_per_frame =
mt9t013_regs.reg_pat[RES_PREVIEW].frame_length_lines - 1;
} else {
snapshot_lines_per_frame =
mt9t013_regs.reg_pat[RES_CAPTURE].frame_length_lines - 1;
}
return snapshot_lines_per_frame * 24;
}
static int mt9t013_set_fps(struct fps_cfg *fps)
{
/* input is new fps in Q8 format */
int rc = 0;
mt9t013_ctrl->fps_divider = fps->fps_div;
mt9t013_ctrl->pict_fps_divider = fps->pict_fps_div;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_HOLD);
if (rc < 0)
return -EBUSY;
CDBG("mt9t013_set_fps: fps_div is %d, frame_rate is %d\n",
fps->fps_div,
(uint16_t) (mt9t013_regs.reg_pat[RES_PREVIEW].
frame_length_lines * fps->fps_div / 0x00000400));
CDBG("mt9t013_set_fps: fps_mult is %d, frame_rate is %d\n",
fps->f_mult,
(uint16_t) (mt9t013_regs.reg_pat[RES_PREVIEW].
line_length_pck * fps->f_mult / 0x00000400));
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_LINE_LENGTH_PCK,
(uint16_t) (mt9t013_regs.reg_pat[RES_PREVIEW].
line_length_pck * fps->f_mult /
0x00000400));
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_UPDATE);
if (rc < 0)
return rc;
return rc;
}
static int mt9t013_write_exp_gain(uint16_t gain, uint32_t line)
{
const uint16_t max_legal_gain = 0x01FF;
uint32_t line_length_ratio = 0x00000400;
enum mt9t013_setting setting;
int rc = 0;
if (mt9t013_ctrl->sensormode == SENSOR_PREVIEW_MODE) {
mt9t013_ctrl->my_reg_gain = gain;
mt9t013_ctrl->my_reg_line_count = (uint16_t) line;
}
if (gain > max_legal_gain)
gain = max_legal_gain;
/* Verify no overflow */
if (mt9t013_ctrl->sensormode != SENSOR_SNAPSHOT_MODE) {
line = (uint32_t) (line * mt9t013_ctrl->fps_divider /
0x00000400);
setting = RES_PREVIEW;
} else {
line = (uint32_t) (line * mt9t013_ctrl->pict_fps_divider /
0x00000400);
setting = RES_CAPTURE;
}
/*Set digital gain to 1 */
gain |= 0x0200;
if ((mt9t013_regs.reg_pat[setting].frame_length_lines - 1) < line) {
line_length_ratio =
(uint32_t) (line * 0x00000400) /
(mt9t013_regs.reg_pat[setting].frame_length_lines - 1);
} else
line_length_ratio = 0x00000400;
/* There used to be PARAMETER_HOLD register write before and
* after REG_GLOBAL_GAIN & REG_COARSE_INIT_TIME. This causes
* aec oscillation. Hence removed. */
rc = mt9t013_i2c_write_w(mt9t013_client->addr, REG_GLOBAL_GAIN, gain);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_COARSE_INT_TIME,
(uint16_t) ((uint32_t) line));
if (rc < 0)
return rc;
return rc;
}
static int mt9t013_set_pict_exp_gain(uint16_t gain, uint32_t line)
{
int rc = 0;
rc = mt9t013_write_exp_gain(gain, line);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
MT9T013_REG_RESET_REGISTER, 0x10CC | 0x0002);
mdelay(5);
/* camera_timed_wait(snapshot_wait*exposure_ratio); */
return rc;
}
static int mt9t013_setting(enum mt9t013_reg_update rupdate,
enum mt9t013_setting rt)
{
int rc = 0;
switch (rupdate) {
case UPDATE_PERIODIC:{
if (rt == RES_PREVIEW || rt == RES_CAPTURE) {
#if 0
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
MT9T013_REG_RESET_REGISTER,
MT9T013_RESET_REGISTER_PWOFF);
if (rc < 0)
return rc;
#endif
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_VT_PIX_CLK_DIV,
mt9t013_regs.
reg_pat[rt].
vt_pix_clk_div);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_VT_SYS_CLK_DIV,
mt9t013_regs.
reg_pat[rt].
vt_sys_clk_div);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_PRE_PLL_CLK_DIV,
mt9t013_regs.
reg_pat[rt].
pre_pll_clk_div);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_PLL_MULTIPLIER,
mt9t013_regs.
reg_pat[rt].
pll_multiplier);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_OP_PIX_CLK_DIV,
mt9t013_regs.
reg_pat[rt].
op_pix_clk_div);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_OP_SYS_CLK_DIV,
mt9t013_regs.
reg_pat[rt].
op_sys_clk_div);
if (rc < 0)
return rc;
mdelay(5);
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_HOLD);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_ROW_SPEED,
mt9t013_regs.
reg_pat[rt].row_speed);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_X_ADDR_START,
mt9t013_regs.
reg_pat[rt].
x_addr_start);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_X_ADDR_END,
mt9t013_regs.
reg_pat[rt].
x_addr_end);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_Y_ADDR_START,
mt9t013_regs.
reg_pat[rt].
y_addr_start);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_Y_ADDR_END,
mt9t013_regs.
reg_pat[rt].
y_addr_end);
if (rc < 0)
return rc;
if (machine_is_sapphire()) {
if (rt == 0)
rc = mt9t013_i2c_write_w
(mt9t013_client->addr,
REG_READ_MODE, 0x046F);
else
rc = mt9t013_i2c_write_w
(mt9t013_client->addr,
REG_READ_MODE, 0x0027);
} else
rc = mt9t013_i2c_write_w
(mt9t013_client->addr,
REG_READ_MODE,
mt9t013_regs.reg_pat[rt].
read_mode);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_SCALE_M,
mt9t013_regs.
reg_pat[rt].scale_m);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_X_OUTPUT_SIZE,
mt9t013_regs.
reg_pat[rt].
x_output_size);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_Y_OUTPUT_SIZE,
mt9t013_regs.
reg_pat[rt].
y_output_size);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_LINE_LENGTH_PCK,
mt9t013_regs.
reg_pat[rt].
line_length_pck);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_FRAME_LENGTH_LINES,
(mt9t013_regs.
reg_pat[rt].
frame_length_lines *
mt9t013_ctrl->
fps_divider /
0x00000400));
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_COARSE_INT_TIME,
mt9t013_regs.
reg_pat[rt].
coarse_int_time);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_FINE_INT_TIME,
mt9t013_regs.
reg_pat[rt].
fine_int_time);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_UPDATE);
if (rc < 0)
return rc;
rc = mt9t013_test(mt9t013_ctrl->set_test);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
MT9T013_REG_RESET_REGISTER,
MT9T013_RESET_REGISTER_PWON);
if (rc < 0)
return rc;
mdelay(5);
return rc;
}
}
break;
/*CAMSENSOR_REG_UPDATE_PERIODIC */
case REG_INIT:{
if (rt == RES_PREVIEW || rt == RES_CAPTURE) {
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
MT9T013_REG_RESET_REGISTER,
MT9T013_RESET_REGISTER_PWOFF);
if (rc < 0)
/* MODE_SELECT, stop streaming */
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_VT_PIX_CLK_DIV,
mt9t013_regs.
reg_pat[rt].
vt_pix_clk_div);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_VT_SYS_CLK_DIV,
mt9t013_regs.
reg_pat[rt].
vt_sys_clk_div);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_PRE_PLL_CLK_DIV,
mt9t013_regs.
reg_pat[rt].
pre_pll_clk_div);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_PLL_MULTIPLIER,
mt9t013_regs.
reg_pat[rt].
pll_multiplier);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_OP_PIX_CLK_DIV,
mt9t013_regs.
reg_pat[rt].
op_pix_clk_div);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_OP_SYS_CLK_DIV,
mt9t013_regs.
reg_pat[rt].
op_sys_clk_div);
if (rc < 0)
return rc;
mdelay(5);
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_HOLD);
if (rc < 0)
return rc;
/* additional power saving mode ok around
* 38.2MHz
*/
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
0x3084, 0x2409);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
0x3092, 0x0A49);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
0x3094, 0x4949);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
0x3096, 0x4949);
if (rc < 0)
return rc;
/* Set preview or snapshot mode */
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_ROW_SPEED,
mt9t013_regs.
reg_pat[rt].row_speed);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_X_ADDR_START,
mt9t013_regs.
reg_pat[rt].
x_addr_start);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_X_ADDR_END,
mt9t013_regs.
reg_pat[rt].
x_addr_end);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_Y_ADDR_START,
mt9t013_regs.
reg_pat[rt].
y_addr_start);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_Y_ADDR_END,
mt9t013_regs.
reg_pat[rt].
y_addr_end);
if (rc < 0)
return rc;
if (machine_is_sapphire()) {
if (rt == 0)
rc = mt9t013_i2c_write_w
(mt9t013_client->addr,
REG_READ_MODE, 0x046F);
else
rc = mt9t013_i2c_write_w
(mt9t013_client->addr,
REG_READ_MODE, 0x0027);
} else
rc = mt9t013_i2c_write_w
(mt9t013_client->addr,
REG_READ_MODE,
mt9t013_regs.reg_pat[rt].
read_mode);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_SCALE_M,
mt9t013_regs.
reg_pat[rt].scale_m);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_X_OUTPUT_SIZE,
mt9t013_regs.
reg_pat[rt].
x_output_size);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_Y_OUTPUT_SIZE,
mt9t013_regs.
reg_pat[rt].
y_output_size);
if (rc < 0)
return 0;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_LINE_LENGTH_PCK,
mt9t013_regs.
reg_pat[rt].
line_length_pck);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_FRAME_LENGTH_LINES,
mt9t013_regs.
reg_pat[rt].
frame_length_lines);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_COARSE_INT_TIME,
mt9t013_regs.
reg_pat[rt].
coarse_int_time);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_FINE_INT_TIME,
mt9t013_regs.
reg_pat[rt].
fine_int_time);
if (rc < 0)
return rc;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_UPDATE);
if (rc < 0)
return rc;
/* load lens shading */
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_HOLD);
if (rc < 0)
return rc;
/* most likely needs to be written only once. */
rc = mt9t013_set_lc();
if (rc < 0)
return -EBUSY;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_UPDATE);
if (rc < 0)
return rc;
rc = mt9t013_test(mt9t013_ctrl->set_test);
if (rc < 0)
return rc;
mdelay(5);
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
MT9T013_REG_RESET_REGISTER,
MT9T013_RESET_REGISTER_PWON);
if (rc < 0)
/* MODE_SELECT, stop streaming */
return rc;
CDBG("!!! mt9t013 !!! PowerOn is done!\n");
mdelay(5);
return rc;
}
} /* case CAMSENSOR_REG_INIT: */
break;
/*CAMSENSOR_REG_INIT */
default:
rc = -EINVAL;
break;
}
return rc;
}
static int mt9t013_video_config(int mode, int res)
{
int rc;
switch (res) {
case QTR_SIZE:
rc = mt9t013_setting(UPDATE_PERIODIC, RES_PREVIEW);
if (rc < 0)
return rc;
CDBG("sensor configuration done!\n");
break;
case FULL_SIZE:
rc = mt9t013_setting(UPDATE_PERIODIC, RES_CAPTURE);
if (rc < 0)
return rc;
break;
default:
return -EINVAL;
}
mt9t013_ctrl->prev_res = res;
mt9t013_ctrl->curr_res = res;
mt9t013_ctrl->sensormode = mode;
return mt9t013_write_exp_gain(mt9t013_ctrl->my_reg_gain,
mt9t013_ctrl->my_reg_line_count);
}
static int mt9t013_snapshot_config(int mode)
{
int rc = 0;
rc = mt9t013_setting(UPDATE_PERIODIC, RES_CAPTURE);
if (rc < 0)
return rc;
mt9t013_ctrl->curr_res = mt9t013_ctrl->pict_res;
mt9t013_ctrl->sensormode = mode;
return rc;
}
static int mt9t013_raw_snapshot_config(int mode)
{
int rc = 0;
rc = mt9t013_setting(UPDATE_PERIODIC, RES_CAPTURE);
if (rc < 0)
return rc;
mt9t013_ctrl->curr_res = mt9t013_ctrl->pict_res;
mt9t013_ctrl->sensormode = mode;
return rc;
}
static int mt9t013_power_down(void)
{
int rc = 0;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
MT9T013_REG_RESET_REGISTER,
MT9T013_RESET_REGISTER_PWOFF);
if (rc >= 0)
mdelay(5);
return rc;
}
static int mt9t013_move_focus(int direction, int num_steps)
{
int16_t step_direction;
int16_t actual_step;
int16_t next_position;
int16_t break_steps[4];
uint8_t code_val_msb, code_val_lsb;
int16_t i;
if (num_steps > MT9T013_TOTAL_STEPS_NEAR_TO_FAR)
num_steps = MT9T013_TOTAL_STEPS_NEAR_TO_FAR;
else if (num_steps == 0)
return -EINVAL;
if (direction == MOVE_NEAR)
step_direction = 4;
else if (direction == MOVE_FAR)
step_direction = -4;
else
return -EINVAL;
if (mt9t013_ctrl->curr_lens_pos < mt9t013_ctrl->init_curr_lens_pos)
mt9t013_ctrl->curr_lens_pos = mt9t013_ctrl->init_curr_lens_pos;
actual_step = (int16_t) (step_direction * (int16_t) num_steps);
for (i = 0; i < 4; i++)
break_steps[i] =
actual_step / 4 * (i + 1) - actual_step / 4 * i;
for (i = 0; i < 4; i++) {
next_position = (int16_t)
(mt9t013_ctrl->curr_lens_pos + break_steps[i]);
if (next_position > 255)
next_position = 255;
else if (next_position < 0)
next_position = 0;
code_val_msb =
((next_position >> 4) << 2) | ((next_position << 4) >> 6);
code_val_lsb = ((next_position & 0x03) << 6);
/* Writing the digital code for current to the actuator */
if (mt9t013_i2c_write_b(MT9T013_AF_I2C_ADDR >> 1,
code_val_msb, code_val_lsb) < 0)
return -EBUSY;
/* Storing the current lens Position */
mt9t013_ctrl->curr_lens_pos = next_position;
if (i < 3)
mdelay(1);
}
return 0;
}
static int mt9t013_sensor_init_done(const struct msm_camera_sensor_info *data)
{
gpio_direction_output(data->sensor_reset, 0);
gpio_free(data->sensor_reset);
return 0;
}
static int mt9t013_probe_init_sensor(const struct msm_camera_sensor_info *data)
{
int rc;
uint16_t chipid;
rc = gpio_request(data->sensor_reset, "mt9t013");
if (!rc)
gpio_direction_output(data->sensor_reset, 1);
else
goto init_probe_done;
mdelay(20);
/* RESET the sensor image part via I2C command */
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
MT9T013_REG_RESET_REGISTER, 0x1009);
if (rc < 0)
goto init_probe_fail;
/* 3. Read sensor Model ID: */
rc = mt9t013_i2c_read_w(mt9t013_client->addr,
MT9T013_REG_MODEL_ID, &chipid);
if (rc < 0)
goto init_probe_fail;
CDBG("mt9t013 model_id = 0x%x\n", chipid);
/* 4. Compare sensor ID to MT9T012VC ID: */
if (chipid != MT9T013_MODEL_ID) {
rc = -ENODEV;
goto init_probe_fail;
}
rc = mt9t013_i2c_write_w(mt9t013_client->addr, 0x3064, 0x0805);
if (rc < 0)
goto init_probe_fail;
mdelay(MT9T013_RESET_DELAY_MSECS);
goto init_probe_done;
/* sensor: output enable */
#if 0
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
MT9T013_REG_RESET_REGISTER,
MT9T013_RESET_REGISTER_PWON);
/* if this fails, the sensor is not the MT9T013 */
rc = mt9t013_set_default_focus(0);
#endif
init_probe_fail:
gpio_direction_output(data->sensor_reset, 0);
gpio_free(data->sensor_reset);
init_probe_done:
return rc;
}
static int mt9t013_poweron_af(void)
{
int rc = 0;
/* enable AF actuator */
CDBG("enable AF actuator, gpio = %d\n",
mt9t013_ctrl->sensordata->vcm_pwd);
rc = gpio_request(mt9t013_ctrl->sensordata->vcm_pwd, "mt9t013");
if (!rc) {
gpio_direction_output(mt9t013_ctrl->sensordata->vcm_pwd, 0);
mdelay(20);
rc = mt9t013_set_default_focus(0);
} else
pr_err("%s, gpio_request failed (%d)!\n", __func__, rc);
return rc;
}
static void mt9t013_poweroff_af(void)
{
gpio_direction_output(mt9t013_ctrl->sensordata->vcm_pwd, 1);
gpio_free(mt9t013_ctrl->sensordata->vcm_pwd);
}
int mt9t013_sensor_open_init(const struct msm_camera_sensor_info *data)
{
int rc;
mt9t013_ctrl = kzalloc(sizeof(struct mt9t013_ctrl), GFP_KERNEL);
if (!mt9t013_ctrl) {
pr_err("mt9t013_init failed!\n");
rc = -ENOMEM;
goto init_done;
}
mt9t013_ctrl->fps_divider = 1 * 0x00000400;
mt9t013_ctrl->pict_fps_divider = 1 * 0x00000400;
mt9t013_ctrl->set_test = TEST_OFF;
mt9t013_ctrl->prev_res = QTR_SIZE;
mt9t013_ctrl->pict_res = FULL_SIZE;
if (data)
mt9t013_ctrl->sensordata = data;
/* enable mclk first */
msm_camio_clk_rate_set(MT9T013_DEFAULT_CLOCK_RATE);
mdelay(20);
msm_camio_camif_pad_reg_reset();
mdelay(20);
rc = mt9t013_probe_init_sensor(data);
if (rc < 0)
goto init_fail;
if (mt9t013_ctrl->prev_res == QTR_SIZE)
rc = mt9t013_setting(REG_INIT, RES_PREVIEW);
else
rc = mt9t013_setting(REG_INIT, RES_CAPTURE);
if (rc >= 0)
rc = mt9t013_poweron_af();
if (rc < 0)
goto init_fail;
else
goto init_done;
init_fail:
kfree(mt9t013_ctrl);
init_done:
return rc;
}
static int mt9t013_init_client(struct i2c_client *client)
{
/* Initialize the MSM_CAMI2C Chip */
init_waitqueue_head(&mt9t013_wait_queue);
return 0;
}
static int mt9t013_set_sensor_mode(int mode, int res)
{
int rc = 0;
rc = mt9t013_i2c_write_w(mt9t013_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_HOLD);
if (rc < 0)
return rc;
switch (mode) {
case SENSOR_PREVIEW_MODE:
rc = mt9t013_video_config(mode, res);
break;
case SENSOR_SNAPSHOT_MODE:
rc = mt9t013_snapshot_config(mode);
break;
case SENSOR_RAW_SNAPSHOT_MODE:
rc = mt9t013_raw_snapshot_config(mode);
break;
default:
return -EINVAL;
}
/* FIXME: what should we do if rc < 0? */
if (rc >= 0)
return mt9t013_i2c_write_w(mt9t013_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_UPDATE);
return rc;
}
int mt9t013_sensor_config(void __user *argp)
{
struct sensor_cfg_data cdata;
long rc = 0;
if (copy_from_user(&cdata, (void *)argp,
sizeof(struct sensor_cfg_data)))
return -EFAULT;
CDBG("mt9t013_sensor_config: cfgtype = %d\n", cdata.cfgtype);
switch (cdata.cfgtype) {
case CFG_GET_PICT_FPS:
mt9t013_get_pict_fps(cdata.cfg.gfps.prevfps,
&(cdata.cfg.gfps.pictfps));
if (copy_to_user((void *)argp,
&cdata, sizeof(struct sensor_cfg_data)))
rc = -EFAULT;
break;
case CFG_GET_PREV_L_PF:
cdata.cfg.prevl_pf = mt9t013_get_prev_lines_pf();
if (copy_to_user((void *)argp,
&cdata, sizeof(struct sensor_cfg_data)))
rc = -EFAULT;
break;
case CFG_GET_PREV_P_PL:
cdata.cfg.prevp_pl = mt9t013_get_prev_pixels_pl();
if (copy_to_user((void *)argp,
&cdata, sizeof(struct sensor_cfg_data)))
rc = -EFAULT;
break;
case CFG_GET_PICT_L_PF:
cdata.cfg.pictl_pf = mt9t013_get_pict_lines_pf();
if (copy_to_user((void *)argp,
&cdata, sizeof(struct sensor_cfg_data)))
rc = -EFAULT;
break;
case CFG_GET_PICT_P_PL:
cdata.cfg.pictp_pl = mt9t013_get_pict_pixels_pl();
if (copy_to_user((void *)argp,
&cdata, sizeof(struct sensor_cfg_data)))
rc = -EFAULT;
break;
case CFG_GET_PICT_MAX_EXP_LC:
cdata.cfg.pict_max_exp_lc = mt9t013_get_pict_max_exp_lc();
if (copy_to_user((void *)argp,
&cdata, sizeof(struct sensor_cfg_data)))
rc = -EFAULT;
break;
case CFG_SET_FPS:
case CFG_SET_PICT_FPS:
rc = mt9t013_set_fps(&(cdata.cfg.fps));
break;
case CFG_SET_EXP_GAIN:
rc = mt9t013_write_exp_gain(cdata.cfg.exp_gain.gain,
cdata.cfg.exp_gain.line);
break;
case CFG_SET_PICT_EXP_GAIN:
rc = mt9t013_set_pict_exp_gain(cdata.cfg.exp_gain.gain,
cdata.cfg.exp_gain.line);
break;
case CFG_SET_MODE:
rc = mt9t013_set_sensor_mode(cdata.mode, cdata.rs);
break;
case CFG_PWR_DOWN:
rc = mt9t013_power_down();
break;
case CFG_MOVE_FOCUS:
rc = mt9t013_move_focus(cdata.cfg.focus.dir,
cdata.cfg.focus.steps);
break;
case CFG_SET_DEFAULT_FOCUS:
rc = mt9t013_set_default_focus(cdata.cfg.focus.steps);
break;
case CFG_GET_AF_MAX_STEPS:
cdata.max_steps = MT9T013_TOTAL_STEPS_NEAR_TO_FAR;
if (copy_to_user((void *)argp,
&cdata, sizeof(struct sensor_cfg_data)))
rc = -EFAULT;
break;
case CFG_SET_EFFECT:
default:
rc = -EINVAL;
break;
}
return rc;
}
int mt9t013_sensor_release(void)
{
int rc = -EBADF;
mt9t013_poweroff_af();
mt9t013_power_down();
gpio_direction_output(mt9t013_ctrl->sensordata->sensor_reset, 0);
gpio_free(mt9t013_ctrl->sensordata->sensor_reset);
kfree(mt9t013_ctrl);
CDBG("mt9t013_release completed!\n");
return rc;
}
static int mt9t013_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int rc = 0;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
rc = -ENOTSUPP;
goto probe_failure;
}
mt9t013_sensorw = kzalloc(sizeof(struct mt9t013_work), GFP_KERNEL);
if (!mt9t013_sensorw) {
rc = -ENOMEM;
goto probe_failure;
}
i2c_set_clientdata(client, mt9t013_sensorw);
mt9t013_init_client(client);
mt9t013_client = client;
mt9t013_client->addr = mt9t013_client->addr >> 1;
mdelay(50);
CDBG("i2c probe ok\n");
return 0;
probe_failure:
kfree(mt9t013_sensorw);
mt9t013_sensorw = NULL;
pr_err("i2c probe failure %d\n", rc);
return rc;
}
static const struct i2c_device_id mt9t013_i2c_id[] = {
{"mt9t013", 0},
{}
};
static struct i2c_driver mt9t013_i2c_driver = {
.id_table = mt9t013_i2c_id,
.probe = mt9t013_i2c_probe,
.remove = __exit_p(mt9t013_i2c_remove),
.driver = {
.name = "mt9t013",
},
};
static int mt9t013_sensor_probe(const struct msm_camera_sensor_info *info,
struct msm_sensor_ctrl *s)
{
/* We expect this driver to match with the i2c device registered
* in the board file immediately. */
int rc = i2c_add_driver(&mt9t013_i2c_driver);
if (rc < 0 || mt9t013_client == NULL) {
rc = -ENOTSUPP;
goto probe_done;
}
/* enable mclk first */
msm_camio_clk_rate_set(MT9T013_DEFAULT_CLOCK_RATE);
mdelay(20);
rc = mt9t013_probe_init_sensor(info);
if (rc < 0) {
i2c_del_driver(&mt9t013_i2c_driver);
goto probe_done;
}
s->s_init = mt9t013_sensor_open_init;
s->s_release = mt9t013_sensor_release;
s->s_config = mt9t013_sensor_config;
mt9t013_sensor_init_done(info);
probe_done:
return rc;
}
static int __mt9t013_probe(struct platform_device *pdev)
{
return msm_camera_drv_start(pdev, mt9t013_sensor_probe);
}
static struct platform_driver msm_camera_driver = {
.probe = __mt9t013_probe,
.driver = {
.name = "msm_camera_mt9t013",
.owner = THIS_MODULE,
},
};
static int __init mt9t013_init(void)
{
return platform_driver_register(&msm_camera_driver);
}
module_init(mt9t013_init);
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