// SPDX-License-Identifier: GPL-2.0
/*
- fp5510 vcm driver
- Copyright © 2019 Fuzhou Rockchip Electronics Co., Ltd.
*/
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/rk-camera-module.h>
#include <linux/version.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <linux/rk_vcm_head.h>
#include <linux/gpio/consumer.h>
#include <linux/compat.h>
#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x0)
#define FP5510_NAME "fp5510"
#define FP5510_MAX_CURRENT 120U
#define FP5510_MAX_REG 1023U
#define FP5510_DEFAULT_START_CURRENT 0
#define FP5510_DEFAULT_RATED_CURRENT 100
#define FP5510_DEFAULT_STEP_MODE 0xd
#define REG_NULL 0xFF
#define ENABLE 0x1
#define DISABLE 0x0
/* fp5510 device structure */
struct fp5510_device {
struct v4l2_ctrl_handler ctrls_vcm;
struct v4l2_subdev sd;
struct v4l2_device vdev;
u16 current_val;
struct gpio_desc *pwdn_gpio;
unsigned short current_related_pos;
unsigned short current_lens_pos;
unsigned int start_current;
unsigned int rated_current;
unsigned int step;
unsigned int step_mode;
unsigned int vcm_movefull_t;
unsigned int esc_enable;
unsigned int tsc_enable;
unsigned int t_src;
unsigned int mclk;
struct __kernel_old_timeval start_move_tv;
struct __kernel_old_timeval end_move_tv;
unsigned long move_ms;
u32 module_index;
const char *module_facing;
struct rk_cam_vcm_cfg vcm_cfg;
int max_ma;
};
struct TimeTabel_s {
unsigned int t_src;/* time of slew rate control /
unsigned int step00;/ S[1:0] /MCLK[1:0] step period */
unsigned int step01;
unsigned int step10;
unsigned int step11;
};
static const struct TimeTabel_s fp5510_lsc_time_table[] = {
{0b10000, 136, 272, 544, 1088},
{0b10001, 130, 260, 520, 1040},
{0b10010, 125, 250, 500, 1000},
{0b10011, 120, 240, 480, 960 },
{0b10100, 116, 232, 464, 928 },
{0b10101, 112, 224, 448, 896 },
{0b10110, 108, 216, 432, 864 },
{0b10111, 104, 208, 416, 832 },
{0b11000, 101, 202, 404, 808 },
{0b11001, 98, 196, 392, 784 },
{0b11010, 95, 190, 380, 760 },
{0b11011, 92, 184, 368, 736 },
{0b11100, 89, 178, 356, 712 },
{0b11101, 87, 174, 348, 696 },
{0b11110, 85, 170, 340, 680 },
{0b11111, 83, 166, 332, 664 },
{0b00000, 81, 162, 324, 648 },
{0b00001, 79, 158, 316, 632 },
{0b00010, 77, 155, 310, 620 },
{0b00011, 76, 152, 304, 608 },
{0b00100, 74, 149, 298, 596 },
{0b00101, 73, 146, 292, 584 },
{0b00110, 71, 143, 286, 572 },
{0b00111, 70, 140, 280, 560 },
{0b01000, 69, 138, 276, 552 },
{0b01001, 68, 136, 272, 544 },
{0b01010, 67, 134, 268, 536 },
{0b01011, 66, 132, 264, 528 },
{0b01100, 65, 131, 262, 524 },
{0b01101, 65, 130, 260, 520 },
{0b01110, 64, 129, 258, 516 },
{0b01111, 64, 128, 256, 512 },
{REG_NULL, 0, 0, 0, 0},
};
static const struct TimeTabel_s fp5510_dlc_time_table[] = {/* us */
{0b10000, 21250, 10630, 5310, 2660},
{0b10001, 20310, 10160, 5080, 2540},
{0b10010, 19530, 9770, 4880, 2440},
{0b10011, 18750, 9380, 4690, 2340},
{0b10100, 18130, 9060, 4530, 2270},
{0b10101, 17500, 8750, 4380, 2190},
{0b10110, 16880, 8440, 4220, 2110},
{0b10111, 16250, 8130, 4060, 2030},
{0b11000, 15780, 7890, 3950, 1970},
{0b11001, 15310, 7660, 3830, 1910},
{0b11010, 14840, 7420, 3710, 1860},
{0b11011, 14380, 7190, 3590, 1800},
{0b11100, 13910, 6950, 3480, 1740},
{0b11101, 13590, 6800, 3400, 1700},
{0b11110, 13280, 6640, 3320, 1660},
{0b11111, 12970, 6480, 3240, 1620},
{0b00000, 12660, 6330, 3160, 1580},
{0b00001, 12340, 6170, 3090, 1540},
{0b00010, 12110, 6050, 3030, 1510},
{0b00011, 11880, 5940, 2970, 1480},
{0b00100, 11640, 5820, 2910, 1460},
{0b00101, 11410, 5700, 2850, 1430},
{0b00110, 11170, 5590, 2790, 1400},
{0b00111, 10940, 5470, 2730, 1370},
{0b01000, 10780, 5390, 2700, 1350},
{0b01001, 10630, 5310, 2660, 1330},
{0b01010, 10470, 5230, 2620, 1310},
{0b01011, 10310, 5160, 2580, 1290},
{0b01100, 10230, 5120, 2560, 1280},
{0b01101, 10160, 5080, 2540, 1270},
{0b01110, 10080, 5040, 2520, 1260},
{0b01111, 10000, 5000, 2500, 1250},
{REG_NULL, 0, 0, 0, 0},
};
static inline struct fp5510_device *to_fp5510_vcm(struct v4l2_ctrl *ctrl)
{
return container_of(ctrl->handler, struct fp5510_device, ctrls_vcm);
}
static inline struct fp5510_device *sd_to_fp5510_vcm(struct v4l2_subdev *subdev)
{
return container_of(subdev, struct fp5510_device, sd);
}
static int __fp5510_power_on(struct fp5510_device *dev_vcm)
{
if (!IS_ERR(dev_vcm->pwdn_gpio)) {
gpiod_set_value_cansleep(dev_vcm->pwdn_gpio, 1);
dev_err(dev_vcm->sd.dev, "power on success!\n");
}
return 0;
}
static int __fp5510_power_off(struct fp5510_device *dev_vcm)
{
if (!IS_ERR(dev_vcm->pwdn_gpio)) {
gpiod_set_value_cansleep(dev_vcm->pwdn_gpio, 0);
dev_err(dev_vcm->sd.dev, "power off success!\n");
}
return 0;
}
static int fp5510_read_msg(struct i2c_client *client,
unsigned char *msb, unsigned char *lsb)
{
int ret = 0;
struct i2c_msg msg[1];
unsigned char data[2];
int retries;
if (!client->adapter) {
dev_err(&client->dev, "client->adapter NULL\n");
return -ENODEV;
}
for (retries = 0; retries < 5; retries++) {
msg->addr = client->addr;
msg->flags = I2C_M_RD;
msg->len = 2;
msg->buf = data;
ret = i2c_transfer(client->adapter, msg, 1);
if (ret == 1) {
dev_dbg(&client->dev,
"%s: vcm i2c ok, addr 0x%x, data 0x%x, 0x%x\n",
__func__, msg->addr, data[0], data[1]);
*msb = data[0];
*lsb = data[1];
return 0;
}
dev_info(&client->dev,
"retrying I2C... %d\n", retries);
retries++;
msleep(20);
}
dev_err(&client->dev,
"%s: i2c write to failed with error %d\n", __func__, ret);
return ret;
}
static int fp5510_write_msg(struct i2c_client *client,
u8 msb, u8 lsb)
{
int ret = 0;
struct i2c_msg msg[1];
unsigned char data[2];
int retries;
if (!client->adapter) {
dev_err(&client->dev, "client->adapter NULL\n");
return -ENODEV;
}
for (retries = 0; retries < 5; retries++) {
msg->addr = client->addr;
msg->flags = 0;
msg->len = 2;
msg->buf = data;
data[0] = msb;
data[1] = lsb;
ret = i2c_transfer(client->adapter, msg, 1);
if (ret == 1) {
dev_dbg(&client->dev,
"%s: vcm i2c ok, addr 0x%x, data 0x%x, 0x%x\n",
__func__, msg->addr, data[0], data[1]);
return 0;
}
dev_info(&client->dev,
"retrying I2C... %d\n", retries);
retries++;
msleep(20);
}
dev_err(&client->dev,
"i2c write to failed with error %d msb:%d lsb:%d\n",
ret, msb, lsb);
return ret;
}
static unsigned int fp5510_move_time(struct fp5510_device *dev_vcm,
unsigned int move_pos)
{
unsigned int move_time_ms = 200;
unsigned int step_period_lsc = 0;
unsigned int step_period_dlc = 0;
unsigned int step_period = 0;
int i = 0;
int table_cnt = 0;
unsigned int step_case;
unsigned int codes_per_step = 1;
struct i2c_client *client = v4l2_get_subdevdata(&dev_vcm->sd);
if (dev_vcm->esc_enable == ENABLE ||
dev_vcm->tsc_enable == ENABLE) {
step_case = dev_vcm->mclk & 0x3;
table_cnt = sizeof(fp5510_dlc_time_table) /
sizeof(struct TimeTabel_s);
for (i = 0; i < table_cnt; i++) {
if (fp5510_dlc_time_table[i].t_src == dev_vcm->t_src)
break;
}
} else {
step_case = dev_vcm->step_mode & 0x3;
table_cnt = sizeof(fp5510_lsc_time_table) /
sizeof(struct TimeTabel_s);
for (i = 0; i < table_cnt; i++) {
if (fp5510_lsc_time_table[i].t_src == dev_vcm->t_src)
break;
}
}
if (i >= table_cnt)
i = 0;
switch (step_case) {
case 0:
step_period_lsc = fp5510_lsc_time_table[i].step00;
step_period_dlc = fp5510_dlc_time_table[i].step00;
break;
case 1:
step_period_lsc = fp5510_lsc_time_table[i].step01;
step_period_dlc = fp5510_dlc_time_table[i].step01;
break;
case 2:
step_period_lsc = fp5510_lsc_time_table[i].step10;
step_period_dlc = fp5510_dlc_time_table[i].step10;
break;
case 3:
step_period_lsc = fp5510_lsc_time_table[i].step11;
step_period_dlc = fp5510_dlc_time_table[i].step11;
break;
default:
dev_err(&client->dev,
"%s: step_case is error %d\n",
__func__, step_case);
break;
}
codes_per_step = (dev_vcm->step_mode & 0x0c) >> 2;
if (codes_per_step > 1)
codes_per_step = 1 << (codes_per_step - 1);
if (dev_vcm->esc_enable == ENABLE || dev_vcm->tsc_enable == ENABLE)
step_period = step_period_dlc;
else
step_period = step_period_lsc;
if (dev_vcm->tsc_enable == ENABLE) {
move_time_ms = step_period * move_pos / 1000;
} else if (dev_vcm->esc_enable == ENABLE) {
move_time_ms = step_period * 2 * move_pos / 1000;
} else {
if (!codes_per_step)
move_time_ms = step_period * move_pos / 1000;
else
move_time_ms = step_period * move_pos /
codes_per_step / 1000;
}
return move_time_ms;
}
static int fp5510_get_pos(struct fp5510_device *dev_vcm,
unsigned int *cur_pos)
{
struct i2c_client *client = v4l2_get_subdevdata(&dev_vcm->sd);
int ret;
unsigned char lsb = 0;
unsigned char msb = 0;
unsigned int abs_step;
ret = fp5510_read_msg(client, &msb, &lsb);
if (ret != 0)
goto err;
abs_step = (((unsigned int)(msb & 0x3FU)) << 4U) |
(((unsigned int)lsb) >> 4U);
if (abs_step <= dev_vcm->start_current)
abs_step = VCMDRV_MAX_LOG;
else if ((abs_step > dev_vcm->start_current) &&
(abs_step <= dev_vcm->rated_current))
abs_step = (dev_vcm->rated_current - abs_step) / dev_vcm->step;
else
abs_step = 0;
*cur_pos = abs_step;
dev_dbg(&client->dev, "%s: get position %d\n", __func__, *cur_pos);
return 0;
err:
dev_err(&client->dev,
"%s: failed with error %d\n", func , ret);
return ret;
}
static int fp5510_set_pos(struct fp5510_device *dev_vcm,
unsigned int dest_pos)
{
int ret;
unsigned char lsb = 0;
unsigned char msb = 0;
unsigned int position;
struct i2c_client *client = v4l2_get_subdevdata(&dev_vcm->sd);
if (dest_pos >= VCMDRV_MAX_LOG)
position = dev_vcm->start_current;
else
position = dev_vcm->start_current +
(dev_vcm->step * (VCMDRV_MAX_LOG - dest_pos));
if (position > FP5510_MAX_REG)
position = FP5510_MAX_REG;
dev_info(&client->dev, "%s: set dest_pos %d, position %d\n", __func__, dest_pos, position);
dev_vcm->current_lens_pos = position;
dev_vcm->current_related_pos = dest_pos;
msb = (0x00U | ((dev_vcm->current_lens_pos & 0x3F0U) >> 4U));
lsb = (((dev_vcm->current_lens_pos & 0x0FU) << 4U) |
dev_vcm->step_mode);
ret = fp5510_write_msg(client, msb, lsb);
if (ret != 0)
goto err;
return ret;
err:
dev_err(&client->dev,
"%s: failed with error %d\n", func , ret);
return ret;
}
static int fp5510_get_ctrl(struct v4l2_ctrl *ctrl)
{
struct fp5510_device *dev_vcm = to_fp5510_vcm(ctrl);
if (ctrl->id == V4L2_CID_FOCUS_ABSOLUTE)
return fp5510_get_pos(dev_vcm, &ctrl->val);
return -EINVAL;
}
static int fp5510_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct fp5510_device *dev_vcm = to_fp5510_vcm(ctrl);
struct i2c_client *client = v4l2_get_subdevdata(&dev_vcm->sd);
unsigned int dest_pos = ctrl->val;
int move_pos;
long mv_us;
int ret = 0;
if (ctrl->id == V4L2_CID_FOCUS_ABSOLUTE) {
if (dest_pos > VCMDRV_MAX_LOG) {
dev_info(&client->dev,
"%s dest_pos is error. %d > %d\n",
__func__, dest_pos, VCMDRV_MAX_LOG);
return -EINVAL;
}
/* calculate move time */
move_pos = dev_vcm->current_related_pos - dest_pos;
if (move_pos < 0)
move_pos = -move_pos;
ret = fp5510_set_pos(dev_vcm, dest_pos);
dev_vcm->move_ms =
((dev_vcm->vcm_movefull_t *
(uint32_t)move_pos) /
VCMDRV_MAX_LOG);
dev_vcm->start_move_tv = ns_to_kernel_old_timeval(ktime_get_ns());
mv_us = dev_vcm->start_move_tv.tv_usec +
dev_vcm->move_ms * 1000;
if (mv_us >= 1000000) {
dev_vcm->end_move_tv.tv_sec =
dev_vcm->start_move_tv.tv_sec + 1;
dev_vcm->end_move_tv.tv_usec = mv_us - 1000000;
} else {
dev_vcm->end_move_tv.tv_sec =
dev_vcm->start_move_tv.tv_sec;
dev_vcm->end_move_tv.tv_usec = mv_us;
}
}
return ret;
}
static const struct v4l2_ctrl_ops fp5510_vcm_ctrl_ops = {
.g_volatile_ctrl = fp5510_get_ctrl,
.s_ctrl = fp5510_set_ctrl,
};
static int fp5510_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
int rval;
rval = pm_runtime_get_sync(sd->dev);
if (rval < 0) {
pm_runtime_put_noidle(sd->dev);
return rval;
}
return 0;
}
static int fp5510_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
pm_runtime_put(sd->dev);
return 0;
}
static const struct v4l2_subdev_internal_ops fp5510_int_ops = {
.open = fp5510_open,
.close = fp5510_close,
};
static void fp5510_update_vcm_cfg(struct fp5510_device *dev_vcm)
{
struct i2c_client *client = v4l2_get_subdevdata(&dev_vcm->sd);
int cur_dist;
if (dev_vcm->max_ma == 0) {
dev_err(&client->dev, "max current is zero");
return;
}
cur_dist = dev_vcm->vcm_cfg.rated_ma - dev_vcm->vcm_cfg.start_ma;
cur_dist = cur_dist * FP5510_MAX_REG / dev_vcm->max_ma;
dev_vcm->step = (cur_dist + (VCMDRV_MAX_LOG - 1)) / VCMDRV_MAX_LOG;
dev_vcm->start_current = dev_vcm->vcm_cfg.start_ma *
FP5510_MAX_REG / dev_vcm->max_ma;
dev_vcm->rated_current = dev_vcm->start_current +
VCMDRV_MAX_LOG * dev_vcm->step;
dev_vcm->step_mode = dev_vcm->vcm_cfg.step_mode;
dev_info(&client->dev,
"vcm_cfg: %d, %d, %d, max_ma %d\n",
dev_vcm->vcm_cfg.start_ma,
dev_vcm->vcm_cfg.rated_ma,
dev_vcm->vcm_cfg.step_mode,
dev_vcm->max_ma);
}
static long fp5510_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct fp5510_device *fp5510_dev = sd_to_fp5510_vcm(sd);
struct rk_cam_vcm_tim *vcm_tim;
struct rk_cam_vcm_cfg *vcm_cfg;
int ret = 0;
if (cmd == RK_VIDIOC_VCM_TIMEINFO) {
vcm_tim = (struct rk_cam_vcm_tim *)arg;
vcm_tim->vcm_start_t.tv_sec = fp5510_dev->start_move_tv.tv_sec;
vcm_tim->vcm_start_t.tv_usec =
fp5510_dev->start_move_tv.tv_usec;
vcm_tim->vcm_end_t.tv_sec = fp5510_dev->end_move_tv.tv_sec;
vcm_tim->vcm_end_t.tv_usec = fp5510_dev->end_move_tv.tv_usec;
dev_dbg(&client->dev, "fp5510_get_move_res 0x%lx, 0x%lx, 0x%lx, 0x%lx\n",
vcm_tim->vcm_start_t.tv_sec,
vcm_tim->vcm_start_t.tv_usec,
vcm_tim->vcm_end_t.tv_sec,
vcm_tim->vcm_end_t.tv_usec);
} else if (cmd == RK_VIDIOC_GET_VCM_CFG) {
vcm_cfg = (struct rk_cam_vcm_cfg *)arg;
vcm_cfg->start_ma = fp5510_dev->vcm_cfg.start_ma;
vcm_cfg->rated_ma = fp5510_dev->vcm_cfg.rated_ma;
vcm_cfg->step_mode = fp5510_dev->vcm_cfg.step_mode;
} else if (cmd == RK_VIDIOC_SET_VCM_CFG) {
vcm_cfg = (struct rk_cam_vcm_cfg *)arg;
fp5510_dev->vcm_cfg.start_ma = vcm_cfg->start_ma;
fp5510_dev->vcm_cfg.rated_ma = vcm_cfg->rated_ma;
fp5510_dev->vcm_cfg.step_mode = vcm_cfg->step_mode;
fp5510_update_vcm_cfg(fp5510_dev);
} else {
dev_err(&client->dev,
"cmd 0x%x not supported\n", cmd);
return -EINVAL;
}
return ret;
}
#ifdef CONFIG_COMPAT
static long fp5510_compat_ioctl32(struct v4l2_subdev *sd,
unsigned int cmd, unsigned long arg)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
void __user *up = compat_ptr(arg);
struct rk_cam_compat_vcm_tim compat_vcm_tim;
struct rk_cam_vcm_tim vcm_tim;
struct rk_cam_vcm_cfg vcm_cfg;
long ret;
if (cmd == RK_VIDIOC_COMPAT_VCM_TIMEINFO) {
struct rk_cam_compat_vcm_tim __user *p32 = up;
ret = fp5510_ioctl(sd, RK_VIDIOC_VCM_TIMEINFO, &vcm_tim);
compat_vcm_tim.vcm_start_t.tv_sec = vcm_tim.vcm_start_t.tv_sec;
compat_vcm_tim.vcm_start_t.tv_usec =
vcm_tim.vcm_start_t.tv_usec;
compat_vcm_tim.vcm_end_t.tv_sec = vcm_tim.vcm_end_t.tv_sec;
compat_vcm_tim.vcm_end_t.tv_usec = vcm_tim.vcm_end_t.tv_usec;
put_user(compat_vcm_tim.vcm_start_t.tv_sec,
&p32->vcm_start_t.tv_sec);
put_user(compat_vcm_tim.vcm_start_t.tv_usec,
&p32->vcm_start_t.tv_usec);
put_user(compat_vcm_tim.vcm_end_t.tv_sec,
&p32->vcm_end_t.tv_sec);
put_user(compat_vcm_tim.vcm_end_t.tv_usec,
&p32->vcm_end_t.tv_usec);
} else if (cmd == RK_VIDIOC_GET_VCM_CFG) {
ret = fp5510_ioctl(sd, RK_VIDIOC_GET_VCM_CFG, &vcm_cfg);
if (!ret) {
ret = copy_to_user(up, &vcm_cfg, sizeof(vcm_cfg));
if (ret)
ret = -EFAULT;
}
} else if (cmd == RK_VIDIOC_SET_VCM_CFG) {
ret = copy_from_user(&vcm_cfg, up, sizeof(vcm_cfg));
if (!ret)
ret = fp5510_ioctl(sd, cmd, &vcm_cfg);
else
ret = -EFAULT;
} else {
dev_err(&client->dev,
"cmd 0x%x not supported\n", cmd);
return -EINVAL;
}
return ret;
}
#endif
static const struct v4l2_subdev_core_ops fp5510_core_ops = {
.ioctl = fp5510_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl32 = fp5510_compat_ioctl32
#endif
};
static const struct v4l2_subdev_ops fp5510_ops = {
.core = &fp5510_core_ops,
};
static void fp5510_subdev_cleanup(struct fp5510_device *fp5510_dev)
{
v4l2_device_unregister_subdev(&fp5510_dev->sd);
v4l2_device_unregister(&fp5510_dev->vdev);
v4l2_ctrl_handler_free(&fp5510_dev->ctrls_vcm);
media_entity_cleanup(&fp5510_dev->sd.entity);
}
static int fp5510_init_controls(struct fp5510_device *dev_vcm)
{
struct v4l2_ctrl_handler *hdl = &dev_vcm->ctrls_vcm;
const struct v4l2_ctrl_ops *ops = &fp5510_vcm_ctrl_ops;
v4l2_ctrl_handler_init(hdl, 1);
v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FOCUS_ABSOLUTE,
0, VCMDRV_MAX_LOG, 1, VCMDRV_MAX_LOG);
if (hdl->error)
dev_err(dev_vcm->sd.dev, "%s fail error: 0x%x\n",
__func__, hdl->error);
dev_vcm->sd.ctrl_handler = hdl;
return hdl->error;
}
static int fp5510_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device_node *np = of_node_get(client->dev.of_node);
struct fp5510_device *fp5510_dev;
struct device *dev = &client->dev;
unsigned int max_ma, start_ma, rated_ma, step_mode;
struct v4l2_subdev *sd;
char facing[2];
unsigned char data = 0x0;
int ret;
dev_info(&client->dev, "probing...\n");
if (of_property_read_u32(np,
OF_CAMERA_VCMDRV_MAX_CURRENT,
(unsigned int *)&max_ma)) {
max_ma = FP5510_MAX_CURRENT;
dev_info(&client->dev,
"could not get module %s from dts!\n",
OF_CAMERA_VCMDRV_MAX_CURRENT);
}
if (max_ma == 0)
max_ma = FP5510_MAX_CURRENT;
if (of_property_read_u32(np,
OF_CAMERA_VCMDRV_START_CURRENT,
(unsigned int *)&start_ma)) {
start_ma = FP5510_DEFAULT_START_CURRENT;
dev_info(&client->dev,
"could not get module %s from dts!\n",
OF_CAMERA_VCMDRV_START_CURRENT);
}
if (of_property_read_u32(np,
OF_CAMERA_VCMDRV_RATED_CURRENT,
(unsigned int *)&rated_ma)) {
rated_ma = FP5510_DEFAULT_RATED_CURRENT;
dev_info(&client->dev,
"could not get module %s from dts!\n",
OF_CAMERA_VCMDRV_RATED_CURRENT);
}
if (of_property_read_u32(np,
OF_CAMERA_VCMDRV_STEP_MODE,
(unsigned int *)&step_mode)) {
step_mode = FP5510_DEFAULT_STEP_MODE;
dev_info(&client->dev,
"could not get module %s from dts!\n",
OF_CAMERA_VCMDRV_STEP_MODE);
}
fp5510_dev = devm_kzalloc(&client->dev, sizeof(*fp5510_dev),
GFP_KERNEL);
if (!fp5510_dev)
return -ENOMEM;
ret = of_property_read_u32(np, RKMODULE_CAMERA_MODULE_INDEX,
&fp5510_dev->module_index);
ret |= of_property_read_string(np, RKMODULE_CAMERA_MODULE_FACING,
&fp5510_dev->module_facing);
if (ret) {
dev_err(&client->dev,
"could not get module information!\n");
return -EINVAL;
}
v4l2_i2c_subdev_init(&fp5510_dev->sd, client, &fp5510_ops);
fp5510_dev->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_HIGH);
if (IS_ERR(fp5510_dev->pwdn_gpio))
dev_warn(dev, "Failed to get pwdn-gpios\n");
fp5510_dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
fp5510_dev->sd.internal_ops = &fp5510_int_ops;
ret = fp5510_init_controls(fp5510_dev);
if (ret)
goto err_cleanup;
__fp5510_power_on(fp5510_dev);
ret = media_entity_pads_init(&fp5510_dev->sd.entity, 0, NULL);
if (ret < 0)
goto err_cleanup;
sd = &fp5510_dev->sd;
sd->entity.function = MEDIA_ENT_F_LENS;
memset(facing, 0, sizeof(facing));
if (strcmp(fp5510_dev->module_facing, "back") == 0)
facing[0] = 'b';
else
facing[0] = 'f';
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
fp5510_dev->module_index, facing,
FP5510_NAME, dev_name(sd->dev));
ret = v4l2_async_register_subdev(sd);
if (ret)
dev_err(&client->dev, "v4l2 async register subdev failed\n");
fp5510_dev->max_ma = max_ma;
fp5510_dev->vcm_cfg.start_ma = start_ma;
fp5510_dev->vcm_cfg.rated_ma = rated_ma;
fp5510_dev->vcm_cfg.step_mode = step_mode;
fp5510_update_vcm_cfg(fp5510_dev);
fp5510_dev->move_ms = 0;
fp5510_dev->current_related_pos = VCMDRV_MAX_LOG;
fp5510_dev->start_move_tv = ns_to_kernel_old_timeval(ktime_get_ns());
fp5510_dev->end_move_tv = ns_to_kernel_old_timeval(ktime_get_ns());
/*
* Note:
* 1. At ESC mode, ESC code=1 and TSC must be equal 0.
* 2. If ESC code=1 and TSC code=1, it get the TSC mode.
*/
fp5510_dev->esc_enable = DISABLE;
fp5510_dev->tsc_enable = DISABLE;
fp5510_dev->mclk = 0;
fp5510_dev->t_src = 0x0;
ret = fp5510_write_msg(client, 0xEC, 0xA3);
if (ret != 0)
dev_err(&client->dev,
"%s: failed with error %d\n", __func__, ret);
data = (fp5510_dev->mclk & 0x3) | 0x04 |
(((fp5510_dev->tsc_enable << 0x3) |
(fp5510_dev->esc_enable << 0x4)) & 0x18);
ret = fp5510_write_msg(client, 0xA1, data);
if (ret != 0)
dev_err(&client->dev,
"%s: failed with error %d\n", __func__, ret);
data = (fp5510_dev->t_src << 0x3) & 0xf8;
ret = fp5510_write_msg(client, 0xF2, data);
if (ret != 0)
dev_err(&client->dev,
"%s: failed with error %d\n", __func__, ret);
ret = fp5510_write_msg(client, 0xDC, 0x51);
if (ret != 0)
dev_err(&client->dev,
"%s: failed with error %d\n", __func__, ret);
fp5510_dev->vcm_movefull_t =
fp5510_move_time(fp5510_dev, FP5510_MAX_REG);
pm_runtime_set_active(&client->dev);
pm_runtime_enable(&client->dev);
pm_runtime_idle(&client->dev);
dev_info(&client->dev, "probing successful\n");
return 0;
err_cleanup:
fp5510_subdev_cleanup(fp5510_dev);
dev_err(&client->dev, "Probe failed: %d\n", ret);
return ret;
}
static int fp5510_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct fp5510_device *fp5510_dev = sd_to_fp5510_vcm(sd);
pm_runtime_disable(&client->dev);
fp5510_subdev_cleanup(fp5510_dev);
if (!pm_runtime_status_suspended(&client->dev))
__fp5510_power_off(fp5510_dev);
pm_runtime_set_suspended(&client->dev);
return 0;
}
static int __maybe_unused fp5510_vcm_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct fp5510_device *fp5510_dev = sd_to_fp5510_vcm(sd);
__fp5510_power_on(fp5510_dev);
fp5510_set_pos(fp5510_dev, fp5510_dev->current_related_pos);
return 0;
}
static int __maybe_unused fp5510_vcm_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct fp5510_device *fp5510_dev = sd_to_fp5510_vcm(sd);
__fp5510_power_off(fp5510_dev);
return 0;
}
static const struct i2c_device_id fp5510_id_table[] = {
{ FP5510_NAME, 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, fp5510_id_table);
static const struct of_device_id fp5510_of_table[] = {
{ .compatible = "fitipower,fp5510" },
{ }
};
MODULE_DEVICE_TABLE(of, fp5510_of_table);
static const struct dev_pm_ops fp5510_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(fp5510_vcm_suspend, fp5510_vcm_resume)
SET_RUNTIME_PM_OPS(fp5510_vcm_suspend, fp5510_vcm_resume, NULL)
};
static struct i2c_driver fp5510_i2c_driver = {
.driver = {
.name = FP5510_NAME,
.pm = &fp5510_pm_ops,
.of_match_table = fp5510_of_table,
},
.probe = &fp5510_probe,
.remove = &fp5510_remove,
.id_table = fp5510_id_table,
};
module_i2c_driver(fp5510_i2c_driver);
MODULE_DESCRIPTION("FP5510 VCM driver");
MODULE_LICENSE("GPL v2");