From a056012edf4386fc31a1096f43877735681908e1 Mon Sep 17 00:00:00 2001 From: Jianwei Fan Date: Wed, 9 Mar 2022 16:04:00 +0800 Subject: [PATCH] media: i2c: dw9714: sync from kernel-4.19 kernel 4.19 drivers/media/i2c/dw9714.c ends commit 6e50af3b41c7550d ("media: move rk_vcm_head.h from drivers/media/i2c/ to include/uapi/linux/") Signed-off-by: Jianwei Fan Change-Id: If329076cf39aa01d9a7b7ab4326e09ba0578c90f --- drivers/media/i2c/dw9714.c | 783 ++++++++++++++++++++++++++++++++----- 1 file changed, 686 insertions(+), 97 deletions(-) diff --git a/drivers/media/i2c/dw9714.c b/drivers/media/i2c/dw9714.c index 3f0b082f863f..870ec248544c 100644 --- a/drivers/media/i2c/dw9714.c +++ b/drivers/media/i2c/dw9714.c @@ -1,40 +1,141 @@ // SPDX-License-Identifier: GPL-2.0 -// Copyright (c) 2015--2017 Intel Corporation. +/* + * dw9714 vcm driver + * + * Copyright (C) 2022 Fuzhou Rockchip Electronics Co., Ltd. + */ #include #include #include #include +#include +#include #include #include +#include +#include -#define DW9714_NAME "dw9714" -#define DW9714_MAX_FOCUS_POS 1023 -/* - * This sets the minimum granularity for the focus positions. - * A value of 1 gives maximum accuracy for a desired focus position - */ -#define DW9714_FOCUS_STEPS 1 -/* - * This acts as the minimum granularity of lens movement. - * Keep this value power of 2, so the control steps can be - * uniformly adjusted for gradual lens movement, with desired - * number of control steps. - */ -#define DW9714_CTRL_STEPS 16 -#define DW9714_CTRL_DELAY_US 1000 -/* - * S[3:2] = 0x00, codes per step for "Linear Slope Control" - * S[1:0] = 0x00, step period - */ -#define DW9714_DEFAULT_S 0x0 -#define DW9714_VAL(data, s) ((data) << 4 | (s)) +#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x0) +#define DW9714_NAME "dw9714" + +#define DW9714_MAX_CURRENT 100U +#define DW9714_MAX_REG 1023U + +#define DW9714_DEFAULT_START_CURRENT 0 +#define DW9714_DEFAULT_RATED_CURRENT 100 +#define DW9714_DEFAULT_STEP_MODE 0xd +#define DW9714_DEFAULT_DLC_EN 0x0 +#define DW9714_DEFAULT_MCLK 0x0 +#define DW9714_DEFAULT_T_SRC 0x0 +#define REG_NULL 0xFF /* dw9714 device structure */ struct dw9714_device { struct v4l2_ctrl_handler ctrls_vcm; struct v4l2_subdev sd; + struct v4l2_device vdev; u16 current_val; + + 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 dlc_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 dw9714_lsc_time_table[] = {/* 1/10us */ + {0b10000, 1360, 2720, 5440, 10880}, + {0b10001, 1300, 2600, 5200, 10400}, + {0b10010, 1250, 2500, 5000, 10000}, + {0b10011, 1200, 2400, 4800, 9600}, + {0b10100, 1160, 2320, 4640, 9280}, + {0b10101, 1120, 2240, 4480, 8960}, + {0b10110, 1080, 2160, 4320, 8640}, + {0b10111, 1040, 2080, 4160, 8320}, + {0b11000, 1010, 2020, 4040, 8080}, + {0b11001, 980, 1960, 3920, 7840}, + {0b11010, 950, 1900, 3800, 7600}, + {0b11011, 920, 1840, 3680, 7360}, + {0b11100, 890, 1780, 3560, 7120}, + {0b11101, 870, 1740, 3480, 6960}, + {0b11110, 850, 1700, 3400, 6800}, + {0b11111, 830, 1660, 3320, 6640}, + {0b00000, 810, 1620, 3240, 6480}, + {0b00001, 790, 1580, 3160, 6320}, + {0b00010, 775, 1550, 3100, 6200}, + {0b00011, 760, 1520, 3040, 6080}, + {0b00100, 745, 1490, 2980, 5960}, + {0b00101, 730, 1460, 2920, 5840}, + {0b00110, 715, 1430, 2860, 5720}, + {0b00111, 700, 1400, 2800, 5600}, + {0b01000, 690, 1380, 2760, 5520}, + {0b01001, 680, 1360, 2720, 5440}, + {0b01010, 670, 1340, 2680, 5360}, + {0b01011, 660, 1320, 2640, 5280}, + {0b01100, 655, 1310, 2620, 5240}, + {0b01101, 650, 1300, 2600, 5200}, + {0b01110, 645, 1290, 2580, 5160}, + {0b01111, 640, 1280, 2560, 5120}, + {REG_NULL, 0, 0, 0, 0}, +}; + +static const struct TimeTabel_s dw9714_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 dw9714_device *to_dw9714_vcm(struct v4l2_ctrl *ctrl) @@ -47,39 +148,289 @@ static inline struct dw9714_device *sd_to_dw9714_vcm(struct v4l2_subdev *subdev) return container_of(subdev, struct dw9714_device, sd); } -static int dw9714_i2c_write(struct i2c_client *client, u16 data) +static int dw9714_read_msg(struct i2c_client *client, + unsigned char *msb, unsigned char *lsb) { - int ret; - __be16 val = cpu_to_be16(data); + int ret = 0; + struct i2c_msg msg[1]; + unsigned char data[2]; + int retries; - ret = i2c_master_send(client, (const char *)&val, sizeof(val)); - if (ret != sizeof(val)) { - dev_err(&client->dev, "I2C write fail\n"); - return -EIO; + if (!client->adapter) { + dev_err(&client->dev, "client->adapter NULL\n"); + return -ENODEV; } - return 0; + + 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 dw9714_t_focus_vcm(struct dw9714_device *dw9714_dev, u16 val) +static int dw9714_write_msg(struct i2c_client *client, + u8 msb, u8 lsb) { - struct i2c_client *client = v4l2_get_subdevdata(&dw9714_dev->sd); + int ret = 0; + struct i2c_msg msg[1]; + unsigned char data[2]; + int retries; - dw9714_dev->current_val = val; + if (!client->adapter) { + dev_err(&client->dev, "client->adapter NULL\n"); + return -ENODEV; + } - return dw9714_i2c_write(client, DW9714_VAL(val, DW9714_DEFAULT_S)); + 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); + usleep_range(50, 100); + + 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\n", ret); + return ret; +} + +static unsigned int dw9714_move_time(struct dw9714_device *dev_vcm, + unsigned int move_pos) +{ + struct i2c_client *client = v4l2_get_subdevdata(&dev_vcm->sd); + unsigned int move_time_ms = 200; + unsigned int step_period_lsc = 0; + unsigned int step_period_dlc = 0; + unsigned int codes_per_step = 1; + unsigned int step_case; + int table_cnt = 0; + int i = 0; + + if (dev_vcm->dlc_enable) { + step_case = dev_vcm->mclk & 0x3; + table_cnt = sizeof(dw9714_dlc_time_table) / + sizeof(struct TimeTabel_s); + for (i = 0; i < table_cnt; i++) { + if (dw9714_dlc_time_table[i].t_src == dev_vcm->t_src) + break; + } + } else { + step_case = dev_vcm->step_mode & 0x3; + table_cnt = sizeof(dw9714_lsc_time_table) / + sizeof(struct TimeTabel_s); + for (i = 0; i < table_cnt; i++) { + if (dw9714_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 = dw9714_lsc_time_table[i].step00; + step_period_dlc = dw9714_dlc_time_table[i].step00; + break; + case 1: + step_period_lsc = dw9714_lsc_time_table[i].step01; + step_period_dlc = dw9714_dlc_time_table[i].step01; + break; + case 2: + step_period_lsc = dw9714_lsc_time_table[i].step10; + step_period_dlc = dw9714_dlc_time_table[i].step10; + break; + case 3: + step_period_lsc = dw9714_lsc_time_table[i].step11; + step_period_dlc = dw9714_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->dlc_enable) { + if (!codes_per_step) + move_time_ms = (step_period_lsc * move_pos + 9999) / 10000; + else + move_time_ms = (step_period_lsc * move_pos / codes_per_step + 9999) / 10000; + } else { + move_time_ms = (step_period_dlc + 999) / 1000; + } + + return move_time_ms; +} + +static int dw9714_get_pos(struct dw9714_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 = dw9714_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 dw9714_set_pos(struct dw9714_device *dev_vcm, + unsigned int dest_pos) +{ + int ret; + unsigned char lsb = 0; + unsigned char msb = 0; + unsigned int position = 0; + 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 > DW9714_MAX_REG) + position = DW9714_MAX_REG; + + 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 = dw9714_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 dw9714_get_ctrl(struct v4l2_ctrl *ctrl) +{ + struct dw9714_device *dev_vcm = to_dw9714_vcm(ctrl); + + if (ctrl->id == V4L2_CID_FOCUS_ABSOLUTE) + return dw9714_get_pos(dev_vcm, &ctrl->val); + + return -EINVAL; } static int dw9714_set_ctrl(struct v4l2_ctrl *ctrl) { struct dw9714_device *dev_vcm = to_dw9714_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) - return dw9714_t_focus_vcm(dev_vcm, ctrl->val); + 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; - return -EINVAL; + ret = dw9714_set_pos(dev_vcm, dest_pos); + + if (dev_vcm->dlc_enable) + dev_vcm->move_ms = dev_vcm->vcm_movefull_t; + else + dev_vcm->move_ms = + ((dev_vcm->vcm_movefull_t * (uint32_t)move_pos) / VCMDRV_MAX_LOG); + + dev_dbg(&client->dev, + "dest_pos %d, move_ms %ld\n", + dest_pos, dev_vcm->move_ms); + + 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 dw9714_vcm_ctrl_ops = { + .g_volatile_ctrl = dw9714_get_ctrl, .s_ctrl = dw9714_set_ctrl, }; @@ -108,11 +459,143 @@ static const struct v4l2_subdev_internal_ops dw9714_int_ops = { .close = dw9714_close, }; -static const struct v4l2_subdev_ops dw9714_ops = { }; +static void dw9714_update_vcm_cfg(struct dw9714_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 * DW9714_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 * + DW9714_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_dbg(&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 dw9714_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) +{ + struct dw9714_device *dev_vcm = sd_to_dw9714_vcm(sd); + struct i2c_client *client = v4l2_get_subdevdata(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 = dev_vcm->start_move_tv.tv_sec; + vcm_tim->vcm_start_t.tv_usec = + dev_vcm->start_move_tv.tv_usec; + vcm_tim->vcm_end_t.tv_sec = dev_vcm->end_move_tv.tv_sec; + vcm_tim->vcm_end_t.tv_usec = dev_vcm->end_move_tv.tv_usec; + + dev_dbg(&client->dev, "dw9714_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 = dev_vcm->vcm_cfg.start_ma; + vcm_cfg->rated_ma = dev_vcm->vcm_cfg.rated_ma; + vcm_cfg->step_mode = dev_vcm->vcm_cfg.step_mode; + } else if (cmd == RK_VIDIOC_SET_VCM_CFG) { + vcm_cfg = (struct rk_cam_vcm_cfg *)arg; + + dev_vcm->vcm_cfg.start_ma = vcm_cfg->start_ma; + dev_vcm->vcm_cfg.rated_ma = vcm_cfg->rated_ma; + dev_vcm->vcm_cfg.step_mode = vcm_cfg->step_mode; + dw9714_update_vcm_cfg(dev_vcm); + } else { + dev_err(&client->dev, + "cmd 0x%x not supported\n", cmd); + return -EINVAL; + } + + return ret; +} + +#ifdef CONFIG_COMPAT +static long dw9714_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 = dw9714_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 = dw9714_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 = dw9714_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 dw9714_core_ops = { + .ioctl = dw9714_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl32 = dw9714_compat_ioctl32 +#endif +}; + +static const struct v4l2_subdev_ops dw9714_ops = { + .core = &dw9714_core_ops, +}; static void dw9714_subdev_cleanup(struct dw9714_device *dw9714_dev) { - v4l2_async_unregister_subdev(&dw9714_dev->sd); + v4l2_device_unregister_subdev(&dw9714_dev->sd); + v4l2_device_unregister(&dw9714_dev->vdev); v4l2_ctrl_handler_free(&dw9714_dev->ctrls_vcm); media_entity_cleanup(&dw9714_dev->sd.entity); } @@ -125,7 +608,7 @@ static int dw9714_init_controls(struct dw9714_device *dev_vcm) v4l2_ctrl_handler_init(hdl, 1); v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FOCUS_ABSOLUTE, - 0, DW9714_MAX_FOCUS_POS, DW9714_FOCUS_STEPS, 0); + 0, VCMDRV_MAX_LOG, 1, VCMDRV_MAX_LOG); if (hdl->error) dev_err(dev_vcm->sd.dev, "%s fail error: 0x%x\n", @@ -134,45 +617,149 @@ static int dw9714_init_controls(struct dw9714_device *dev_vcm) return hdl->error; } -static int dw9714_probe(struct i2c_client *client) +static int dw9714_probe(struct i2c_client *client, + const struct i2c_device_id *id) { + struct device_node *np = of_node_get(client->dev.of_node); struct dw9714_device *dw9714_dev; - int rval; + unsigned int max_ma, start_ma, rated_ma, step_mode; + unsigned int dlc_en, mclk, t_src; + struct v4l2_subdev *sd; + char facing[2]; + 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 = DW9714_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 = DW9714_MAX_CURRENT; + + if (of_property_read_u32(np, + OF_CAMERA_VCMDRV_START_CURRENT, + (unsigned int *)&start_ma)) { + start_ma = DW9714_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 = DW9714_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 = DW9714_DEFAULT_STEP_MODE; + dev_info(&client->dev, + "could not get module %s from dts!\n", + OF_CAMERA_VCMDRV_STEP_MODE); + } + if (of_property_read_u32(np, + OF_CAMERA_VCMDRV_DLC_ENABLE, + (unsigned int *)&dlc_en)) { + dlc_en = DW9714_DEFAULT_DLC_EN; + dev_info(&client->dev, + "could not get module %s from dts!\n", + OF_CAMERA_VCMDRV_DLC_ENABLE); + } + if (of_property_read_u32(np, + OF_CAMERA_VCMDRV_MCLK, + (unsigned int *)&mclk)) { + mclk = DW9714_DEFAULT_MCLK; + dev_info(&client->dev, + "could not get module %s from dts!\n", + OF_CAMERA_VCMDRV_MCLK); + } + if (of_property_read_u32(np, + OF_CAMERA_VCMDRV_T_SRC, + (unsigned int *)&t_src)) { + t_src = DW9714_DEFAULT_T_SRC; + dev_info(&client->dev, + "could not get module %s from dts!\n", + OF_CAMERA_VCMDRV_T_SRC); + } dw9714_dev = devm_kzalloc(&client->dev, sizeof(*dw9714_dev), GFP_KERNEL); if (dw9714_dev == NULL) return -ENOMEM; + ret = of_property_read_u32(np, RKMODULE_CAMERA_MODULE_INDEX, + &dw9714_dev->module_index); + ret |= of_property_read_string(np, RKMODULE_CAMERA_MODULE_FACING, + &dw9714_dev->module_facing); + if (ret) { + dev_err(&client->dev, + "could not get module information!\n"); + return -EINVAL; + } + v4l2_i2c_subdev_init(&dw9714_dev->sd, client, &dw9714_ops); dw9714_dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; dw9714_dev->sd.internal_ops = &dw9714_int_ops; - rval = dw9714_init_controls(dw9714_dev); - if (rval) + ret = dw9714_init_controls(dw9714_dev); + if (ret) goto err_cleanup; - rval = media_entity_pads_init(&dw9714_dev->sd.entity, 0, NULL); - if (rval < 0) + ret = media_entity_pads_init(&dw9714_dev->sd.entity, 0, NULL); + if (ret < 0) goto err_cleanup; - dw9714_dev->sd.entity.function = MEDIA_ENT_F_LENS; + sd = &dw9714_dev->sd; + sd->entity.function = MEDIA_ENT_F_LENS; - rval = v4l2_async_register_subdev(&dw9714_dev->sd); - if (rval < 0) - goto err_cleanup; + memset(facing, 0, sizeof(facing)); + if (strcmp(dw9714_dev->module_facing, "back") == 0) + facing[0] = 'b'; + else + facing[0] = 'f'; + snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s", + dw9714_dev->module_index, facing, + DW9714_NAME, dev_name(sd->dev)); + ret = v4l2_async_register_subdev(sd); + if (ret) + dev_err(&client->dev, "v4l2 async register subdev failed\n"); + + dw9714_dev->max_ma = max_ma; + dw9714_dev->vcm_cfg.start_ma = start_ma; + dw9714_dev->vcm_cfg.rated_ma = rated_ma; + dw9714_dev->vcm_cfg.step_mode = step_mode; + dw9714_update_vcm_cfg(dw9714_dev); + dw9714_dev->move_ms = 0; + dw9714_dev->current_related_pos = VCMDRV_MAX_LOG; + dw9714_dev->start_move_tv = ns_to_kernel_old_timeval(ktime_get_ns()); + dw9714_dev->end_move_tv = ns_to_kernel_old_timeval(ktime_get_ns()); + + dw9714_dev->dlc_enable = dlc_en; + dw9714_dev->mclk = mclk; + dw9714_dev->t_src = t_src; + + dw9714_dev->vcm_movefull_t = + dw9714_move_time(dw9714_dev, DW9714_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: - v4l2_ctrl_handler_free(&dw9714_dev->ctrls_vcm); - media_entity_cleanup(&dw9714_dev->sd.entity); - - return rval; + dw9714_subdev_cleanup(dw9714_dev); + dev_err(&client->dev, "Probe failed: %d\n", ret); + return ret; } static int dw9714_remove(struct i2c_client *client) @@ -186,53 +773,60 @@ static int dw9714_remove(struct i2c_client *client) return 0; } -/* - * This function sets the vcm position, so it consumes least current - * The lens position is gradually moved in units of DW9714_CTRL_STEPS, - * to make the movements smoothly. - */ -static int __maybe_unused dw9714_vcm_suspend(struct device *dev) +static int dw9714_init(struct i2c_client *client) { - struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); struct dw9714_device *dw9714_dev = sd_to_dw9714_vcm(sd); - int ret, val; + unsigned char data = 0x0; + int ret = 0; - for (val = dw9714_dev->current_val & ~(DW9714_CTRL_STEPS - 1); - val >= 0; val -= DW9714_CTRL_STEPS) { - ret = dw9714_i2c_write(client, - DW9714_VAL(val, DW9714_DEFAULT_S)); - if (ret) - dev_err_once(dev, "%s I2C failure: %d", __func__, ret); - usleep_range(DW9714_CTRL_DELAY_US, DW9714_CTRL_DELAY_US + 10); - } + // need to wait 12ms after poweron + usleep_range(12000, 12500); + + ret = dw9714_write_msg(client, 0xEC, 0xA3); + if (ret) + goto err; + + data = (dw9714_dev->mclk & 0x3) | 0x04 | + ((dw9714_dev->dlc_enable << 0x3) & 0x08); + ret = dw9714_write_msg(client, 0xA1, data); + if (ret) + goto err; + + data = (dw9714_dev->t_src << 0x3) & 0xf8; + ret = dw9714_write_msg(client, 0xF2, data); + if (ret) + goto err; + + ret = dw9714_write_msg(client, 0xDC, 0x51); + if (ret) + goto err; + + /* set normal mode */ + ret = dw9714_write_msg(client, 0xDF, 0x5B); + if (ret != 0) + dev_err(&client->dev, + "%s: failed with error %d\n", __func__, ret); + + return 0; +err: + dev_err(&client->dev, "failed with error %d\n", ret); + return -1; +} + +static int __maybe_unused dw9714_vcm_suspend(struct device *dev) +{ return 0; } -/* - * This function sets the vcm position to the value set by the user - * through v4l2_ctrl_ops s_ctrl handler - * The lens position is gradually moved in units of DW9714_CTRL_STEPS, - * to make the movements smoothly. - */ -static int __maybe_unused dw9714_vcm_resume(struct device *dev) +static int __maybe_unused dw9714_vcm_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct dw9714_device *dw9714_dev = sd_to_dw9714_vcm(sd); - int ret, val; - - for (val = dw9714_dev->current_val % DW9714_CTRL_STEPS; - val < dw9714_dev->current_val + DW9714_CTRL_STEPS - 1; - val += DW9714_CTRL_STEPS) { - ret = dw9714_i2c_write(client, - DW9714_VAL(val, DW9714_DEFAULT_S)); - if (ret) - dev_err_ratelimited(dev, "%s I2C failure: %d", - __func__, ret); - usleep_range(DW9714_CTRL_DELAY_US, DW9714_CTRL_DELAY_US + 10); - } + struct dw9714_device *dev_vcm = sd_to_dw9714_vcm(sd); + dw9714_init(client); + dw9714_set_pos(dev_vcm, dev_vcm->current_related_pos); return 0; } @@ -259,17 +853,12 @@ static struct i2c_driver dw9714_i2c_driver = { .pm = &dw9714_pm_ops, .of_match_table = dw9714_of_table, }, - .probe_new = dw9714_probe, - .remove = dw9714_remove, + .probe = &dw9714_probe, + .remove = &dw9714_remove, .id_table = dw9714_id_table, }; module_i2c_driver(dw9714_i2c_driver); -MODULE_AUTHOR("Tianshu Qiu "); -MODULE_AUTHOR("Jian Xu Zheng"); -MODULE_AUTHOR("Yuning Pu "); -MODULE_AUTHOR("Jouni Ukkonen "); -MODULE_AUTHOR("Tommi Franttila "); MODULE_DESCRIPTION("DW9714 VCM driver"); MODULE_LICENSE("GPL v2");