/*
* Copyright (C) 2008-2009 QUALCOMM Incorporated.
*/
#include <linux/delay.h>
#include <linux/types.h>
#include <linux/slab.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 "mt9p012.h"
/*=============================================================
SENSOR REGISTER DEFINES
==============================================================*/
#define MT9P012_REG_MODEL_ID 0x0000
#define MT9P012_MODEL_ID 0x2801
#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_INTEGRATION_TIME 0x3014
#define REG_ROW_SPEED 0x3016
#define MT9P012_REG_RESET_REGISTER 0x301A
#define MT9P012_RESET_REGISTER_PWON 0x10CC
#define MT9P012_RESET_REGISTER_PWOFF 0x10C8
#define REG_READ_MODE 0x3040
#define REG_GLOBAL_GAIN 0x305E
#define REG_TEST_PATTERN_MODE 0x3070
#define MT9P012_REV_7
enum mt9p012_test_mode {
TEST_OFF,
TEST_1,
TEST_2,
TEST_3
};
enum mt9p012_resolution {
QTR_SIZE,
FULL_SIZE,
INVALID_SIZE
};
enum mt9p012_reg_update {
/* Sensor egisters that need to be updated during initialization */
REG_INIT,
/* Sensor egisters that needs periodic I2C writes */
UPDATE_PERIODIC,
/* All the sensor Registers will be updated */
UPDATE_ALL,
/* Not valid update */
UPDATE_INVALID
};
enum mt9p012_setting {
RES_PREVIEW,
RES_CAPTURE
};
/* actuator's Slave Address */
#define MT9P012_AF_I2C_ADDR 0x18
/* AF Total steps parameters */
#define MT9P012_STEPS_NEAR_TO_CLOSEST_INF 32
#define MT9P012_TOTAL_STEPS_NEAR_TO_FAR 32
#define MT9P012_MU5M0_PREVIEW_DUMMY_PIXELS 0
#define MT9P012_MU5M0_PREVIEW_DUMMY_LINES 0
/* Time in milisecs for waiting for the sensor to reset.*/
#define MT9P012_RESET_DELAY_MSECS 66
/* for 20 fps preview */
#define MT9P012_DEFAULT_CLOCK_RATE 24000000
#define MT9P012_DEFAULT_MAX_FPS 26 /* ???? */
struct mt9p012_work {
struct work_struct work;
};
static struct mt9p012_work *mt9p012_sensorw;
static struct i2c_client *mt9p012_client;
struct mt9p012_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 mt9p012_resolution prev_res;
enum mt9p012_resolution pict_res;
enum mt9p012_resolution curr_res;
enum mt9p012_test_mode set_test;
};
static struct mt9p012_ctrl *mt9p012_ctrl;
static DECLARE_WAIT_QUEUE_HEAD(mt9p012_wait_queue);
DECLARE_MUTEX(mt9p012_sem);
/*=============================================================
EXTERNAL DECLARATIONS
==============================================================*/
extern struct mt9p012_reg mt9p012_regs; /* from mt9p012_reg.c */
/*=============================================================*/
static int mt9p012_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(mt9p012_client->adapter, msgs, 2) < 0) {
CDBG("mt9p012_i2c_rxdata failed!\n");
return -EIO;
}
return 0;
}
static int32_t mt9p012_i2c_read_w(unsigned short saddr, unsigned short raddr,
unsigned short *rdata)
{
int32_t 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 = mt9p012_i2c_rxdata(saddr, buf, 2);
if (rc < 0)
return rc;
*rdata = buf[0] << 8 | buf[1];
if (rc < 0)
CDBG("mt9p012_i2c_read failed!\n");
return rc;
}
static int32_t mt9p012_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(mt9p012_client->adapter, msg, 1) < 0) {
CDBG("mt9p012_i2c_txdata failed\n");
return -EIO;
}
return 0;
}
static int32_t mt9p012_i2c_write_b(unsigned short saddr, unsigned short baddr,
unsigned short bdata)
{
int32_t rc = -EIO;
unsigned char buf[2];
memset(buf, 0, sizeof(buf));
buf[0] = baddr;
buf[1] = bdata;
rc = mt9p012_i2c_txdata(saddr, buf, 2);
if (rc < 0)
CDBG("i2c_write failed, saddr = 0x%x addr = 0x%x, val =0x%x!\n",
saddr, baddr, bdata);
return rc;
}
static int32_t mt9p012_i2c_write_w(unsigned short saddr, unsigned short waddr,
unsigned short wdata)
{
int32_t 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 = mt9p012_i2c_txdata(saddr, buf, 4);
if (rc < 0)
CDBG("i2c_write_w failed, addr = 0x%x, val = 0x%x!\n",
waddr, wdata);
return rc;
}
static int32_t mt9p012_i2c_write_w_table(
struct mt9p012_i2c_reg_conf *reg_conf_tbl, int num)
{
int i;
int32_t rc = -EIO;
for (i = 0; i < num; i++) {
rc = mt9p012_i2c_write_w(mt9p012_client->addr,
reg_conf_tbl->waddr, reg_conf_tbl->wdata);
if (rc < 0)
break;
reg_conf_tbl++;
}
return rc;
}
static int32_t mt9p012_test(enum mt9p012_test_mode mo)
{
int32_t rc = 0;
rc = mt9p012_i2c_write_w(mt9p012_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_HOLD);
if (rc < 0)
return rc;
if (mo == TEST_OFF)
return 0;
else {
rc = mt9p012_i2c_write_w_table(mt9p012_regs.ttbl, mt9p012_regs.ttbl_size);
if (rc < 0)
return rc;
rc = mt9p012_i2c_write_w(mt9p012_client->addr,
REG_TEST_PATTERN_MODE, (uint16_t)mo);
if (rc < 0)
return rc;
}
rc = mt9p012_i2c_write_w(mt9p012_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_UPDATE);
if (rc < 0)
return rc;
return rc;
}
static int32_t mt9p012_lens_shading_enable(uint8_t is_enable)
{
int32_t rc = 0;
CDBG("%s: entered. enable = %d\n", __func__, is_enable);
rc = mt9p012_i2c_write_w(mt9p012_client->addr,
REG_GROUPED_PARAMETER_HOLD, GROUPED_PARAMETER_HOLD);
if (rc < 0)
return rc;
rc = mt9p012_i2c_write_w(mt9p012_client->addr, 0x3780,
((uint16_t) is_enable) << 15);
if (rc < 0)
return rc;
rc = mt9p012_i2c_write_w(mt9p012_client->addr,
REG_GROUPED_PARAMETER_HOLD, GROUPED_PARAMETER_UPDATE);
CDBG("%s: exiting. rc = %d\n", __func__, rc);
return rc;
}
static int32_t mt9p012_set_lc(void)
{
int32_t rc;
rc = mt9p012_i2c_write_w_table(mt9p012_regs.lctbl, mt9p012_regs.lctbl_size);
if (rc < 0)
return rc;
rc = mt9p012_i2c_write_w_table(mt9p012_regs.rftbl, mt9p012_regs.rftbl_size);
return rc;
}
static void mt9p012_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 (mt9p012_ctrl->prev_res == QTR_SIZE) {
divider = (uint32_t)
(((mt9p012_regs.reg_pat[RES_PREVIEW].frame_length_lines *
mt9p012_regs.reg_pat[RES_PREVIEW].line_length_pck) * 0x00000400) /
(mt9p012_regs.reg_pat[RES_CAPTURE].frame_length_lines *
mt9p012_regs.reg_pat[RES_CAPTURE].line_length_pck));
pclk_mult =
(uint32_t) ((mt9p012_regs.reg_pat[RES_CAPTURE].pll_multiplier *
0x00000400) / (mt9p012_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 mt9p012_get_prev_lines_pf(void)
{
if (mt9p012_ctrl->prev_res == QTR_SIZE)
return mt9p012_regs.reg_pat[RES_PREVIEW].frame_length_lines;
else
return mt9p012_regs.reg_pat[RES_CAPTURE].frame_length_lines;
}
static uint16_t mt9p012_get_prev_pixels_pl(void)
{
if (mt9p012_ctrl->prev_res == QTR_SIZE)
return mt9p012_regs.reg_pat[RES_PREVIEW].line_length_pck;
else
return mt9p012_regs.reg_pat[RES_CAPTURE].line_length_pck;
}
static uint16_t mt9p012_get_pict_lines_pf(void)
{
return mt9p012_regs.reg_pat[RES_CAPTURE].frame_length_lines;
}
static uint16_t mt9p012_get_pict_pixels_pl(void)
{
return mt9p012_regs.reg_pat[RES_CAPTURE].line_length_pck;
}
static uint32_t mt9p012_get_pict_max_exp_lc(void)
{
uint16_t snapshot_lines_per_frame;
if (mt9p012_ctrl->pict_res == QTR_SIZE)
snapshot_lines_per_frame =
mt9p012_regs.reg_pat[RES_PREVIEW].frame_length_lines - 1;
else
snapshot_lines_per_frame =
mt9p012_regs.reg_pat[RES_CAPTURE].frame_length_lines - 1;
return snapshot_lines_per_frame * 24;
}
static int32_t mt9p012_set_fps(struct fps_cfg *fps)
{
/* input is new fps in Q10 format */
int32_t rc = 0;
mt9p012_ctrl->fps_divider = fps->fps_div;
mt9p012_ctrl->pict_fps_divider = fps->pict_fps_div;
rc =
mt9p012_i2c_write_w(mt9p012_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_HOLD);
if (rc < 0)
return -EBUSY;
rc =
mt9p012_i2c_write_w(mt9p012_client->addr,
REG_LINE_LENGTH_PCK,
(mt9p012_regs.reg_pat[RES_PREVIEW].line_length_pck *
fps->f_mult / 0x00000400));
if (rc < 0)
return rc;
rc =
mt9p012_i2c_write_w(mt9p012_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_UPDATE);
return rc;
}
static int32_t mt9p012_write_exp_gain(uint16_t gain, uint32_t line)
{
uint16_t max_legal_gain = 0x01FF;
uint32_t line_length_ratio = 0x00000400;
enum mt9p012_setting setting;
int32_t rc = 0;
CDBG("Line:%d mt9p012_write_exp_gain \n", __LINE__);
if (mt9p012_ctrl->sensormode == SENSOR_PREVIEW_MODE) {
mt9p012_ctrl->my_reg_gain = gain;
mt9p012_ctrl->my_reg_line_count = (uint16_t)line;
}
if (gain > max_legal_gain) {
CDBG("Max legal gain Line:%d \n", __LINE__);
gain = max_legal_gain;
}
/* Verify no overflow */
if (mt9p012_ctrl->sensormode != SENSOR_SNAPSHOT_MODE) {
line = (uint32_t)(line * mt9p012_ctrl->fps_divider /
0x00000400);
setting = RES_PREVIEW;
} else {
line = (uint32_t)(line * mt9p012_ctrl->pict_fps_divider /
0x00000400);
setting = RES_CAPTURE;
}
/* Set digital gain to 1 */
#ifdef MT9P012_REV_7
gain |= 0x1000;
#else
gain |= 0x0200;
#endif
if ((mt9p012_regs.reg_pat[setting].frame_length_lines - 1) < line) {
line_length_ratio = (uint32_t) (line * 0x00000400) /
(mt9p012_regs.reg_pat[setting].frame_length_lines - 1);
} else
line_length_ratio = 0x00000400;
rc =
mt9p012_i2c_write_w(mt9p012_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_HOLD);
if (rc < 0) {
CDBG("mt9p012_i2c_write_w failed... Line:%d \n", __LINE__);
return rc;
}
rc =
mt9p012_i2c_write_w(
mt9p012_client->addr,
REG_GLOBAL_GAIN, gain);
if (rc < 0) {
CDBG("mt9p012_i2c_write_w failed... Line:%d \n", __LINE__);
return rc;
}
rc =
mt9p012_i2c_write_w(mt9p012_client->addr,
REG_COARSE_INT_TIME,
line);
if (rc < 0) {
CDBG("mt9p012_i2c_write_w failed... Line:%d \n", __LINE__);
return rc;
}
CDBG("mt9p012_write_exp_gain: gain = %d, line = %d\n", gain, line);
rc =
mt9p012_i2c_write_w(mt9p012_client->addr,
REG_GROUPED_PARAMETER_HOLD,
GROUPED_PARAMETER_UPDATE);
if (rc < 0)
CDBG("mt9p012_i2c_write_w failed... Line:%d \n", __LINE__);
return rc;
}
static int32_t mt9p012_set_pict_exp_gain(uint16_t gain, uint32_t line)
{
int32_t rc = 0;
CDBG("Line:%d mt9p012_set_pict_exp_gain \n", __LINE__);
rc =
mt9p012_write_exp_gain(gain, line);
if (rc < 0) {
CDBG("Line:%d mt9p012_set_pict_exp_gain failed... \n",
__LINE__);
return rc;
}
rc =
mt9p012_i2c_write_w(mt9p012_client->addr,
MT9P012_REG_RESET_REGISTER,
0x10CC | 0x0002);
if (rc < 0) {
CDBG("mt9p012_i2c_write_w failed... Line:%d \n", __LINE__);
return rc;
}
mdelay(5);
/* camera_timed_wait(snapshot_wait*exposure_ratio); */
return rc;
}
static int32_t mt9p012_setting(enum mt9p012_reg_update rupdate,
enum mt9p012_setting rt)
{
int32_t rc = 0;
switch (rupdate) {
case UPDATE_PERIODIC:
if (rt == RES_PREVIEW || rt == RES_CAPTURE) {
struct mt9p012_i2c_reg_conf ppc_tbl[] = {
{REG_GROUPED_PARAMETER_HOLD, GROUPED_PARAMETER_HOLD},
{REG_ROW_SPEED, mt9p012_regs.reg_pat[rt].row_speed},
{REG_X_ADDR_START, mt9p012_regs.reg_pat[rt].x_addr_start},
{REG_X_ADDR_END, mt9p012_regs.reg_pat[rt].x_addr_end},
{REG_Y_ADDR_START, mt9p012_regs.reg_pat[rt].y_addr_start},
{REG_Y_ADDR_END, mt9p012_regs.reg_pat[rt].y_addr_end},
{REG_READ_MODE, mt9p012_regs.reg_pat[rt].read_mode},
{REG_SCALE_M, mt9p012_regs.reg_pat[rt].scale_m},
{REG_X_OUTPUT_SIZE, mt9p012_regs.reg_pat[rt].x_output_size},
{REG_Y_OUTPUT_SIZE, mt9p012_regs.reg_pat[rt].y_output_size},
{REG_LINE_LENGTH_PCK, mt9p012_regs.reg_pat[rt].line_length_pck},
{REG_FRAME_LENGTH_LINES,
(mt9p012_regs.reg_pat[rt].frame_length_lines *
mt9p012_ctrl->fps_divider / 0x00000400)},
{REG_COARSE_INT_TIME, mt9p012_regs.reg_pat[rt].coarse_int_time},
{REG_FINE_INTEGRATION_TIME, mt9p012_regs.reg_pat[rt].fine_int_time},
{REG_GROUPED_PARAMETER_HOLD, GROUPED_PARAMETER_UPDATE},
};
rc = mt9p012_i2c_write_w_table(&ppc_tbl[0],
ARRAY_SIZE(ppc_tbl));
if (rc < 0)
return rc;
rc = mt9p012_test(mt9p012_ctrl->set_test);
if (rc < 0)
return rc;
rc =
mt9p012_i2c_write_w(mt9p012_client->addr,
MT9P012_REG_RESET_REGISTER,
MT9P012_RESET_REGISTER_PWON | 0x0002);
if (rc < 0)
return rc;
mdelay(5); /* 15? wait for sensor to transition*/
return rc;
}
break; /* UPDATE_PERIODIC */
case REG_INIT:
if (rt == RES_PREVIEW || rt == RES_CAPTURE) {
struct mt9p012_i2c_reg_conf ipc_tbl1[] = {
{MT9P012_REG_RESET_REGISTER, MT9P012_RESET_REGISTER_PWOFF},
{REG_VT_PIX_CLK_DIV, mt9p012_regs.reg_pat[rt].vt_pix_clk_div},
{REG_VT_SYS_CLK_DIV, mt9p012_regs.reg_pat[rt].vt_sys_clk_div},
{REG_PRE_PLL_CLK_DIV, mt9p012_regs.reg_pat[rt].pre_pll_clk_div},
{REG_PLL_MULTIPLIER, mt9p012_regs.reg_pat[rt].pll_multiplier},
{REG_OP_PIX_CLK_DIV, mt9p012_regs.reg_pat[rt].op_pix_clk_div},
{REG_OP_SYS_CLK_DIV, mt9p012_regs.reg_pat[rt].op_sys_clk_div},
#ifdef MT9P012_REV_7
{0x30B0, 0x0001},
{0x308E, 0xE060},
{0x3092, 0x0A52},
{0x3094, 0x4656},
{0x3096, 0x5652},
{0x30CA, 0x8006},
{0x312A, 0xDD02},
{0x312C, 0x00E4},
{0x3170, 0x299A},
#endif
/* optimized settings for noise */
{0x3088, 0x6FF6},
{0x3154, 0x0282},
{0x3156, 0x0381},
{0x3162, 0x04CE},
{0x0204, 0x0010},
{0x0206, 0x0010},
{0x0208, 0x0010},
{0x020A, 0x0010},
{0x020C, 0x0010},
{MT9P012_REG_RESET_REGISTER, MT9P012_RESET_REGISTER_PWON},
};
struct mt9p012_i2c_reg_conf ipc_tbl2[] = {
{MT9P012_REG_RESET_REGISTER, MT9P012_RESET_REGISTER_PWOFF},
{REG_VT_PIX_CLK_DIV, mt9p012_regs.reg_pat[rt].vt_pix_clk_div},
{REG_VT_SYS_CLK_DIV, mt9p012_regs.reg_pat[rt].vt_sys_clk_div},
{REG_PRE_PLL_CLK_DIV, mt9p012_regs.reg_pat[rt].pre_pll_clk_div},
{REG_PLL_MULTIPLIER, mt9p012_regs.reg_pat[rt].pll_multiplier},
{REG_OP_PIX_CLK_DIV, mt9p012_regs.reg_pat[rt].op_pix_clk_div},
{REG_OP_SYS_CLK_DIV, mt9p012_regs.reg_pat[rt].op_sys_clk_div},
#ifdef MT9P012_REV_7
{0x30B0, 0x0001},
{0x308E, 0xE060},
{0x3092, 0x0A52},
{0x3094, 0x4656},
{0x3096, 0x5652},
{0x30CA, 0x8006},
{0x312A, 0xDD02},
{0x312C, 0x00E4},
{0x3170, 0x299A},
#endif
/* optimized settings for noise */
{0x3088, 0x6FF6},
{0x3154, 0x0282},
{0x3156, 0x0381},
{0x3162, 0x04CE},
{0x0204, 0x0010},
{0x0206, 0x0010},
{0x0208, 0x0010},
{0x020A, 0x0010},
{0x020C, 0x0010},
{MT9P012_REG_RESET_REGISTER, MT9P012_RESET_REGISTER_PWON},
};
struct mt9p012_i2c_reg_conf ipc_tbl3[] = {
{REG_GROUPED_PARAMETER_HOLD, GROUPED_PARAMETER_HOLD},
/* Set preview or snapshot mode */
{REG_ROW_SPEED, mt9p012_regs.reg_pat[rt].row_speed},
{REG_X_ADDR_START, mt9p012_regs.reg_pat[rt].x_addr_start},
{REG_X_ADDR_END, mt9p012_regs.reg_pat[rt].x_addr_end},
{REG_Y_ADDR_START, mt9p012_regs.reg_pat[rt].y_addr_start},
{REG_Y_ADDR_END, mt9p012_regs.reg_pat[rt].y_addr_end},
{REG_READ_MODE, mt9p012_regs.reg_pat[rt].read_mode},
{REG_SCALE_M, mt9p012_regs.reg_pat[rt].scale_m},
{REG_X_OUTPUT_SIZE, mt9p012_regs.reg_pat[rt].x_output_size},
{REG_Y_OUTPUT_SIZE, mt9p012_regs.reg_pat[rt].y_output_size},
{REG_LINE_LENGTH_PCK, mt9p012_regs.reg_pat[rt].line_length_pck},
{REG_FRAME_LENGTH_LINES,
mt9p012_regs.reg_pat[rt].frame_length_lines},
{REG_COARSE_INT_TIME, mt9p012_regs.reg_pat[rt].coarse_int_time},
{REG_FINE_INTEGRATION_TIME, mt9p012_regs.reg_pat[rt].fine_int_time},
{REG_GROUPED_PARAMETER_HOLD, GROUPED_PARAMETER_UPDATE},
};
/* reset fps_divider */
mt9p012_ctrl->fps_divider = 1 * 0x0400;
rc = mt9p012_i2c_write_w_table(&ipc_tbl1[0],
ARRAY_SIZE(ipc_tbl1));
if (rc < 0)
return rc;
rc = mt9p012_i2c_write_w_table(&ipc_tbl2[0],
ARRAY_SIZE(ipc_tbl2));
if (rc < 0)
return rc;
mdelay(5);
rc = mt9p012_i2c_write_w_table(&ipc_tbl3[0],
ARRAY_SIZE(ipc_tbl3));
if (rc < 0)
return rc;
/* load lens shading */
rc = mt9p012_i2c_write_w(mt9p012_client->addr,
REG_GROUPED_PARAMETER_HOLD, GROUPED_PARAMETER_HOLD);
if (rc < 0)
return rc;
rc = mt9p012_set_lc();
if (rc < 0)
return rc;
rc = mt9p012_i2c_write_w(mt9p012_client->addr,
REG_GROUPED_PARAMETER_HOLD, GROUPED_PARAMETER_UPDATE);
if (rc < 0)
return rc;
}
break; /* case REG_INIT: */
default:
rc = -EINVAL;
break;
} /* switch (rupdate) */
return rc;
}
static int32_t mt9p012_video_config(int mode, int res)
{
int32_t rc;
switch (res) {
case QTR_SIZE:
rc = mt9p012_setting(UPDATE_PERIODIC, RES_PREVIEW);
if (rc < 0)
return rc;
CDBG("mt9p012 sensor configuration done!\n");
break;
case FULL_SIZE:
rc =
mt9p012_setting(UPDATE_PERIODIC, RES_CAPTURE);
if (rc < 0)
return rc;
break;
default:
return 0;
} /* switch */
mt9p012_ctrl->prev_res = res;
mt9p012_ctrl->curr_res = res;
mt9p012_ctrl->sensormode = mode;
rc =
mt9p012_write_exp_gain(mt9p012_ctrl->my_reg_gain,
mt9p012_ctrl->my_reg_line_count);
rc =
mt9p012_i2c_write_w(mt9p012_client->addr,
MT9P012_REG_RESET_REGISTER,
0x10cc|0x0002);
return rc;
}
static int32_t mt9p012_snapshot_config(int mode)
{
int32_t rc = 0;
rc = mt9p012_setting(UPDATE_PERIODIC, RES_CAPTURE);
if (rc < 0)
return rc;
mt9p012_ctrl->curr_res = mt9p012_ctrl->pict_res;
mt9p012_ctrl->sensormode = mode;
return rc;
}
static int32_t mt9p012_raw_snapshot_config(int mode)
{
int32_t rc = 0;
rc = mt9p012_setting(UPDATE_PERIODIC, RES_CAPTURE);
if (rc < 0)
return rc;
mt9p012_ctrl->curr_res = mt9p012_ctrl->pict_res;
mt9p012_ctrl->sensormode = mode;
return rc;
}
static int32_t mt9p012_power_down(void)
{
int32_t rc = 0;
rc = mt9p012_i2c_write_w(mt9p012_client->addr,
MT9P012_REG_RESET_REGISTER,
MT9P012_RESET_REGISTER_PWOFF);
mdelay(5);
return rc;
}
static int32_t mt9p012_move_focus(int direction, int32_t num_steps)
{
int16_t step_direction;
int16_t actual_step;
int16_t next_position;
uint8_t code_val_msb, code_val_lsb;
if (num_steps > MT9P012_TOTAL_STEPS_NEAR_TO_FAR)
num_steps = MT9P012_TOTAL_STEPS_NEAR_TO_FAR;
else if (num_steps == 0) {
CDBG("mt9p012_move_focus failed at line %d ...\n", __LINE__);
return -EINVAL;
}
if (direction == MOVE_NEAR)
step_direction = 16; /* 10bit */
else if (direction == MOVE_FAR)
step_direction = -16; /* 10 bit */
else {
CDBG("mt9p012_move_focus failed at line %d ...\n", __LINE__);
return -EINVAL;
}
if (mt9p012_ctrl->curr_lens_pos < mt9p012_ctrl->init_curr_lens_pos)
mt9p012_ctrl->curr_lens_pos =
mt9p012_ctrl->init_curr_lens_pos;
actual_step = (int16_t)(step_direction * (int16_t)num_steps);
next_position = (int16_t)(mt9p012_ctrl->curr_lens_pos + actual_step);
if (next_position > 1023)
next_position = 1023;
else if (next_position < 0)
next_position = 0;
code_val_msb = next_position >> 4;
code_val_lsb = (next_position & 0x000F) << 4;
/* code_val_lsb |= mode_mask; */
/* Writing the digital code for current to the actuator */
if (mt9p012_i2c_write_b(MT9P012_AF_I2C_ADDR >> 1,
code_val_msb, code_val_lsb) < 0) {
CDBG("mt9p012_move_focus failed at line %d ...\n", __LINE__);
return -EBUSY;
}
/* Storing the current lens Position */
mt9p012_ctrl->curr_lens_pos = next_position;
return 0;
}
static int32_t mt9p012_set_default_focus(void)
{
int32_t rc = 0;
uint8_t code_val_msb, code_val_lsb;
code_val_msb = 0x00;
code_val_lsb = 0x00;
/* Write the digital code for current to the actuator */
rc = mt9p012_i2c_write_b(MT9P012_AF_I2C_ADDR >> 1,
code_val_msb, code_val_lsb);
mt9p012_ctrl->curr_lens_pos = 0;
mt9p012_ctrl->init_curr_lens_pos = 0;
return rc;
}
static int mt9p012_probe_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 mt9p012_probe_init_sensor(const struct msm_camera_sensor_info *data)
{
int32_t rc;
uint16_t chipid;
rc = gpio_request(data->sensor_reset, "mt9p012");
if (!rc)
gpio_direction_output(data->sensor_reset, 1);
else
goto init_probe_done;
mdelay(20);
/* RESET the sensor image part via I2C command */
CDBG("mt9p012_sensor_init(): reseting sensor.\n");
rc = mt9p012_i2c_write_w(mt9p012_client->addr,
MT9P012_REG_RESET_REGISTER, 0x10CC|0x0001);
if (rc < 0) {
CDBG("sensor reset failed. rc = %d\n", rc);
goto init_probe_fail;
}
mdelay(MT9P012_RESET_DELAY_MSECS);
/* 3. Read sensor Model ID: */
rc = mt9p012_i2c_read_w(mt9p012_client->addr,
MT9P012_REG_MODEL_ID, &chipid);
if (rc < 0)
goto init_probe_fail;
/* 4. Compare sensor ID to MT9T012VC ID: */
if (chipid != MT9P012_MODEL_ID) {
CDBG("mt9p012 wrong model_id = 0x%x\n", chipid);
rc = -ENODEV;
goto init_probe_fail;
}
rc = mt9p012_i2c_write_w(mt9p012_client->addr, 0x306E, 0x9000);
if (rc < 0) {
CDBG("REV_7 write failed. rc = %d\n", rc);
goto init_probe_fail;
}
/* RESET_REGISTER, enable parallel interface and disable serialiser */
CDBG("mt9p012_sensor_init(): enabling parallel interface.\n");
rc = mt9p012_i2c_write_w(mt9p012_client->addr, 0x301A, 0x10CC);
if (rc < 0) {
CDBG("enable parallel interface failed. rc = %d\n", rc);
goto init_probe_fail;
}
/* To disable the 2 extra lines */
rc = mt9p012_i2c_write_w(mt9p012_client->addr,
0x3064, 0x0805);
if (rc < 0) {
CDBG("disable the 2 extra lines failed. rc = %d\n", rc);
goto init_probe_fail;
}
mdelay(MT9P012_RESET_DELAY_MSECS);
goto init_probe_done;
init_probe_fail:
mt9p012_probe_init_done(data);
init_probe_done:
return rc;
}
static int mt9p012_sensor_open_init(const struct msm_camera_sensor_info *data)
{
int32_t rc;
mt9p012_ctrl = kzalloc(sizeof(struct mt9p012_ctrl), GFP_KERNEL);
if (!mt9p012_ctrl) {
CDBG("mt9p012_init failed!\n");
rc = -ENOMEM;
goto init_done;
}
mt9p012_ctrl->fps_divider = 1 * 0x00000400;
mt9p012_ctrl->pict_fps_divider = 1 * 0x00000400;
mt9p012_ctrl->set_test = TEST_OFF;
mt9p012_ctrl->prev_res = QTR_SIZE;
mt9p012_ctrl->pict_res = FULL_SIZE;
if (data)
mt9p012_ctrl->sensordata = data;
/* enable mclk first */
msm_camio_clk_rate_set(MT9P012_DEFAULT_CLOCK_RATE);
mdelay(20);
msm_camio_camif_pad_reg_reset();
mdelay(20);
rc = mt9p012_probe_init_sensor(data);
if (rc < 0)
goto init_fail1;
if (mt9p012_ctrl->prev_res == QTR_SIZE)
rc = mt9p012_setting(REG_INIT, RES_PREVIEW);
else
rc = mt9p012_setting(REG_INIT, RES_CAPTURE);
if (rc < 0) {
CDBG("mt9p012_setting failed. rc = %d\n", rc);
goto init_fail1;
}
/* sensor : output enable */
CDBG("mt9p012_sensor_open_init(): enabling output.\n");
rc = mt9p012_i2c_write_w(mt9p012_client->addr,
MT9P012_REG_RESET_REGISTER, MT9P012_RESET_REGISTER_PWON);
if (rc < 0) {
CDBG("sensor output enable failed. rc = %d\n", rc);
goto init_fail1;
}
/* TODO: enable AF actuator */
#if 0
CDBG("enable AF actuator, gpio = %d\n",
mt9p012_ctrl->sensordata->vcm_pwd);
rc = gpio_request(mt9p012_ctrl->sensordata->vcm_pwd, "mt9p012");
if (!rc)
gpio_direction_output(mt9p012_ctrl->sensordata->vcm_pwd, 1);
else {
CDBG("mt9p012_ctrl gpio request failed!\n");
goto init_fail1;
}
mdelay(20);
rc = mt9p012_set_default_focus();
#endif
if (rc >= 0)
goto init_done;
/* TODO:
* gpio_direction_output(mt9p012_ctrl->sensordata->vcm_pwd, 0);
* gpio_free(mt9p012_ctrl->sensordata->vcm_pwd); */
init_fail1:
mt9p012_probe_init_done(data);
kfree(mt9p012_ctrl);
init_done:
return rc;
}
static int mt9p012_init_client(struct i2c_client *client)
{
/* Initialize the MSM_CAMI2C Chip */
init_waitqueue_head(&mt9p012_wait_queue);
return 0;
}
static int32_t mt9p012_set_sensor_mode(int mode, int res)
{
int32_t rc = 0;
switch (mode) {
case SENSOR_PREVIEW_MODE:
rc = mt9p012_video_config(mode, res);
break;
case SENSOR_SNAPSHOT_MODE:
rc = mt9p012_snapshot_config(mode);
break;
case SENSOR_RAW_SNAPSHOT_MODE:
rc = mt9p012_raw_snapshot_config(mode);
break;
default:
rc = -EINVAL;
break;
}
return rc;
}
int mt9p012_sensor_config(void __user *argp)
{
struct sensor_cfg_data cdata;
int rc = 0;
if (copy_from_user(&cdata,
(void *)argp,
sizeof(struct sensor_cfg_data)))
return -EFAULT;
down(&mt9p012_sem);
CDBG("%s: cfgtype = %d\n", __func__, cdata.cfgtype);
switch (cdata.cfgtype) {
case CFG_GET_PICT_FPS:
mt9p012_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 = mt9p012_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 = mt9p012_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 = mt9p012_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 = mt9p012_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 =
mt9p012_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 = mt9p012_set_fps(&(cdata.cfg.fps));
break;
case CFG_SET_EXP_GAIN:
rc = mt9p012_write_exp_gain(cdata.cfg.exp_gain.gain,
cdata.cfg.exp_gain.line);
break;
case CFG_SET_PICT_EXP_GAIN:
CDBG("Line:%d CFG_SET_PICT_EXP_GAIN \n", __LINE__);
rc = mt9p012_set_pict_exp_gain(cdata.cfg.exp_gain.gain,
cdata.cfg.exp_gain.line);
break;
case CFG_SET_MODE:
rc = mt9p012_set_sensor_mode(cdata.mode, cdata.rs);
break;
case CFG_PWR_DOWN:
rc = mt9p012_power_down();
break;
case CFG_MOVE_FOCUS:
CDBG("mt9p012_ioctl: CFG_MOVE_FOCUS: cdata.cfg.focus.dir=%d cdata.cfg.focus.steps=%d\n",
cdata.cfg.focus.dir, cdata.cfg.focus.steps);
rc = mt9p012_move_focus(cdata.cfg.focus.dir,
cdata.cfg.focus.steps);
break;
case CFG_SET_DEFAULT_FOCUS:
rc = mt9p012_set_default_focus();
break;
case CFG_SET_LENS_SHADING:
CDBG("%s: CFG_SET_LENS_SHADING\n", __func__);
rc = mt9p012_lens_shading_enable(cdata.cfg.lens_shading);
break;
case CFG_GET_AF_MAX_STEPS:
cdata.max_steps = MT9P012_STEPS_NEAR_TO_CLOSEST_INF;
if (copy_to_user((void *)argp,
&cdata,
sizeof(struct sensor_cfg_data)))
rc = -EFAULT;
break;
case CFG_SET_EFFECT:
default:
rc = -EINVAL;
break;
}
up(&mt9p012_sem);
return rc;
}
int mt9p012_sensor_release(void)
{
int rc = -EBADF;
down(&mt9p012_sem);
mt9p012_power_down();
gpio_direction_output(mt9p012_ctrl->sensordata->sensor_reset,
0);
gpio_free(mt9p012_ctrl->sensordata->sensor_reset);
gpio_direction_output(mt9p012_ctrl->sensordata->vcm_pwd, 0);
gpio_free(mt9p012_ctrl->sensordata->vcm_pwd);
kfree(mt9p012_ctrl);
mt9p012_ctrl = NULL;
CDBG("mt9p012_release completed\n");
up(&mt9p012_sem);
return rc;
}
static int mt9p012_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int rc = 0;
CDBG("mt9p012_probe called!\n");
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
CDBG("i2c_check_functionality failed\n");
goto probe_failure;
}
mt9p012_sensorw = kzalloc(sizeof(struct mt9p012_work), GFP_KERNEL);
if (!mt9p012_sensorw) {
CDBG("kzalloc failed.\n");
rc = -ENOMEM;
goto probe_failure;
}
i2c_set_clientdata(client, mt9p012_sensorw);
mt9p012_init_client(client);
mt9p012_client = client;
mdelay(50);
CDBG("mt9p012_probe successed! rc = %d\n", rc);
return 0;
probe_failure:
CDBG("mt9p012_probe failed! rc = %d\n", rc);
return rc;
}
static const struct i2c_device_id mt9p012_i2c_id[] = {
{ "mt9p012", 0},
{ }
};
static struct i2c_driver mt9p012_i2c_driver = {
.id_table = mt9p012_i2c_id,
.probe = mt9p012_i2c_probe,
.remove = __exit_p(mt9p012_i2c_remove),
.driver = {
.name = "mt9p012",
},
};
static int mt9p012_sensor_probe(const struct msm_camera_sensor_info *info,
struct msm_sensor_ctrl *s)
{
int rc = i2c_add_driver(&mt9p012_i2c_driver);
if (rc < 0 || mt9p012_client == NULL) {
rc = -ENOTSUPP;
goto probe_done;
}
msm_camio_clk_rate_set(MT9P012_DEFAULT_CLOCK_RATE);
mdelay(20);
rc = mt9p012_probe_init_sensor(info);
if (rc < 0)
goto probe_done;
s->s_init = mt9p012_sensor_open_init;
s->s_release = mt9p012_sensor_release;
s->s_config = mt9p012_sensor_config;
mt9p012_probe_init_done(info);
probe_done:
CDBG("%s %s:%d\n", __FILE__, __func__, __LINE__);
return rc;
}
static int __mt9p012_probe(struct platform_device *pdev)
{
return msm_camera_drv_start(pdev, mt9p012_sensor_probe);
}
static struct platform_driver msm_camera_driver = {
.probe = __mt9p012_probe,
.driver = {
.name = "msm_camera_mt9p012",
.owner = THIS_MODULE,
},
};
static int __init mt9p012_init(void)
{
return platform_driver_register(&msm_camera_driver);
}
module_init(mt9p012_init);