media: i2c: add vcm driver dw9800w
Signed-off-by: Wang Panzhenzhuan <randy.wang@rock-chips.com> Change-Id: I1fa84ba018c376b79b952b6b0da9ab667d92fbb2
This commit is contained in:
Wang Panzhenzhuan
committed by
Tao Huang
Tao Huang
parent
e43dd4e3e3
commit
96201a0c4e
@@ -1970,6 +1970,18 @@ config VIDEO_DW9768
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capability. This is designed for linear control of
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capability. This is designed for linear control of
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voice coil motors, controlled via I2C serial interface.
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voice coil motors, controlled via I2C serial interface.
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config VIDEO_DW9800W
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tristate "DW9800W lens voice coil support"
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depends on I2C && VIDEO_V4L2
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select MEDIA_CONTROLLER
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select VIDEO_V4L2_SUBDEV_API
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select V4L2_FWNODE
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help
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This is a driver for the DW9800W camera lens voice coil.
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DW9800W is a 10 bit DAC with ±100mA output current sink
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capability. This is designed for linear control of
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voice coil motors, controlled via I2C serial interface.
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config VIDEO_DW9807_VCM
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config VIDEO_DW9807_VCM
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tristate "DW9807 lens voice coil support"
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tristate "DW9807 lens voice coil support"
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depends on I2C && VIDEO_V4L2
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depends on I2C && VIDEO_V4L2
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@@ -28,6 +28,7 @@ obj-$(CONFIG_VIDEO_AK7375) += ak7375.o
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obj-$(CONFIG_VIDEO_AW8601) += aw8601.o
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obj-$(CONFIG_VIDEO_AW8601) += aw8601.o
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obj-$(CONFIG_VIDEO_DW9714) += dw9714.o
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obj-$(CONFIG_VIDEO_DW9714) += dw9714.o
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obj-$(CONFIG_VIDEO_DW9768) += dw9768.o
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obj-$(CONFIG_VIDEO_DW9768) += dw9768.o
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obj-$(CONFIG_VIDEO_DW9800W) += dw9800w.o
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obj-$(CONFIG_VIDEO_DW9807_VCM) += dw9807-vcm.o
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obj-$(CONFIG_VIDEO_DW9807_VCM) += dw9807-vcm.o
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obj-$(CONFIG_VIDEO_FP5510) += fp5510.o
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obj-$(CONFIG_VIDEO_FP5510) += fp5510.o
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obj-$(CONFIG_VIDEO_ADV7170) += adv7170.o
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obj-$(CONFIG_VIDEO_ADV7170) += adv7170.o
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858
drivers/media/i2c/dw9800w.c
Normal file
858
drivers/media/i2c/dw9800w.c
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@@ -0,0 +1,858 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* dw9800w vcm driver
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*
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* Copyright (C) 2022 Rockchip Electronics Co., Ltd.
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*/
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//#define DEBUG
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#include <linux/delay.h>
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <linux/pm_runtime.h>
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#include <linux/rk-camera-module.h>
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#include <linux/version.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-device.h>
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#include <linux/rk_vcm_head.h>
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#include <linux/compat.h>
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#define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x0)
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#define DW9800W_NAME "dw9800w"
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#define DW9800W_MAX_CURRENT 1023U
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#define DW9800W_MAX_REG 1023U
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#define DW9800W_DEFAULT_START_CURRENT 553
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#define DW9800W_DEFAULT_RATED_CURRENT 853
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#define DW9800W_DEFAULT_STEP_MODE 0x0
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#define DW9800W_DEFAULT_T_SACT 0x10
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#define DW9800W_DEFAULT_T_DIV 0x1
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#define REG_NULL 0xFF
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#define DW9800W_CHIP_ID 0xF2
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#define DW9800W_REG_CHIP_ID 0x00
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enum mode_e {
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SAC2_MODE,
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SAC3_MODE,
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SAC4_MODE,
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SAC5_MODE,
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DIRECT_MODE,
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LSC_MODE,
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};
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/* dw9800w device structure */
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struct dw9800w_device {
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struct v4l2_ctrl_handler ctrls_vcm;
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struct i2c_client *client;
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struct v4l2_subdev sd;
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struct v4l2_device vdev;
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u16 current_val;
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struct gpio_desc *power_gpio;
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unsigned short current_related_pos;
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unsigned short current_lens_pos;
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unsigned int start_current;
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unsigned int rated_current;
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unsigned int step;
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unsigned int step_mode;
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unsigned int vcm_movefull_t;
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unsigned int t_src;
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unsigned int t_div;
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struct __kernel_old_timeval start_move_tv;
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struct __kernel_old_timeval end_move_tv;
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unsigned long move_us;
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u32 module_index;
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const char *module_facing;
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struct rk_cam_vcm_cfg vcm_cfg;
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int max_ma;
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struct mutex lock;
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};
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static inline struct dw9800w_device *to_dw9800w_vcm(struct v4l2_ctrl *ctrl)
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{
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return container_of(ctrl->handler, struct dw9800w_device, ctrls_vcm);
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}
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static inline struct dw9800w_device *sd_to_dw9800w_vcm(struct v4l2_subdev *subdev)
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{
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return container_of(subdev, struct dw9800w_device, sd);
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}
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static int dw9800w_write_reg(struct i2c_client *client, u8 reg,
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u32 len, u32 val)
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{
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u32 buf_i, val_i;
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u8 buf[5];
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u8 *val_p;
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__be32 val_be;
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if (len > 4)
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return -EINVAL;
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buf[0] = reg;
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val_be = cpu_to_be32(val);
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val_p = (u8 *)&val_be;
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buf_i = 1;
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val_i = 4 - len;
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while (val_i < 4)
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buf[buf_i++] = val_p[val_i++];
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if (i2c_master_send(client, buf, len + 1) != len + 1) {
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dev_err(&client->dev, "Failed to write 0x%04x,0x%x\n", reg, val);
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return -EIO;
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}
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return 0;
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}
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static int dw9800w_read_reg(struct i2c_client *client,
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u8 reg,
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unsigned int len,
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u32 *val)
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{
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struct i2c_msg msgs[2];
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u8 *data_be_p;
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__be32 data_be = 0;
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int ret;
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if (len > 4 || !len)
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return -EINVAL;
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data_be_p = (u8 *)&data_be;
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/* Write register address */
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msgs[0].addr = client->addr;
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msgs[0].flags = 0;
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msgs[0].len = 1;
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msgs[0].buf = (u8 *)®
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/* Read data from register */
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msgs[1].addr = client->addr;
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msgs[1].flags = I2C_M_RD;
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msgs[1].len = len;
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msgs[1].buf = &data_be_p[4 - len];
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ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
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if (ret != ARRAY_SIZE(msgs))
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return -EIO;
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*val = be32_to_cpu(data_be);
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return 0;
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}
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static unsigned int dw9800w_move_time_div(struct dw9800w_device *dev_vcm,
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unsigned int move_time_us)
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{
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struct i2c_client *client = dev_vcm->client;
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unsigned int move_time = 0;
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switch (dev_vcm->t_div) {
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case 0:
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move_time = move_time_us * 2;
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break;
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case 1:
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move_time = move_time_us;
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break;
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case 2:
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move_time = move_time_us / 2;
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break;
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case 3:
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move_time = move_time_us / 4;
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break;
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case 4:
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move_time = move_time_us * 8;
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break;
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case 5:
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move_time = move_time_us * 4;
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break;
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default:
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dev_err(&client->dev,
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"%s: t_div parameter err %d\n",
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__func__, dev_vcm->t_div);
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break;
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}
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return move_time;
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}
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static unsigned int dw9800w_move_time(struct dw9800w_device *dev_vcm,
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unsigned int move_pos)
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{
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struct i2c_client *client = dev_vcm->client;
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unsigned int move_time_us = 0;
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switch (dev_vcm->step_mode) {
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case LSC_MODE:
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move_time_us = 252 + dev_vcm->t_src * 4;
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move_time_us = move_time_us * move_pos;
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break;
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case SAC2_MODE:
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case SAC3_MODE:
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case SAC4_MODE:
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case SAC5_MODE:
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move_time_us = 6300 + dev_vcm->t_src * 100;
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move_time_us = dw9800w_move_time_div(dev_vcm, move_time_us);
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break;
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case DIRECT_MODE:
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move_time_us = 30000;
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break;
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default:
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dev_err(&client->dev,
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"%s: step_mode is error %d\n",
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__func__, dev_vcm->step_mode);
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break;
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}
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dev_err(&client->dev,
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"%s: vcm_movefull_t is: %d us\n",
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__func__, move_time_us);
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return move_time_us;
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}
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static int dw9800w_get_pos(struct dw9800w_device *dev_vcm,
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unsigned int *cur_pos)
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{
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struct i2c_client *client = dev_vcm->client;
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int ret;
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unsigned int abs_step;
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ret = dw9800w_read_reg(client, 0x03, 2, &abs_step);
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if (ret != 0)
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goto err;
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if (abs_step <= dev_vcm->start_current)
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abs_step = VCMDRV_MAX_LOG;
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else if ((abs_step > dev_vcm->start_current) &&
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(abs_step <= dev_vcm->rated_current))
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abs_step = (dev_vcm->rated_current - abs_step) / dev_vcm->step;
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else
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abs_step = 0;
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*cur_pos = abs_step;
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dev_dbg(&client->dev, "%s: get position %d\n", __func__, *cur_pos);
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return 0;
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err:
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dev_err(&client->dev,
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"%s: failed with error %d\n", __func__, ret);
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return ret;
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}
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static int dw9800w_set_pos(struct dw9800w_device *dev_vcm,
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unsigned int dest_pos)
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{
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int ret;
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unsigned int position = 0;
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struct i2c_client *client = dev_vcm->client;
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u32 is_busy, i;
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if (dest_pos >= VCMDRV_MAX_LOG)
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position = dev_vcm->start_current;
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else
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position = dev_vcm->start_current +
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(dev_vcm->step * (VCMDRV_MAX_LOG - dest_pos));
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if (position > DW9800W_MAX_REG)
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position = DW9800W_MAX_REG;
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dev_vcm->current_lens_pos = position;
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dev_vcm->current_related_pos = dest_pos;
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for (i = 0; i < 100; i++) {
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ret = dw9800w_read_reg(client, 0x05, 1, &is_busy);
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if (!ret && !(is_busy & 0x01))
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break;
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usleep_range(100, 200);
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}
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ret = dw9800w_write_reg(client, 0x03, 2, dev_vcm->current_lens_pos);
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if (ret != 0)
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goto err;
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dev_info(&client->dev,
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"%s: set reg val %d\n", __func__, dev_vcm->current_lens_pos);
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return ret;
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err:
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dev_err(&client->dev,
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"%s: failed with error %d\n", __func__, ret);
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return ret;
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}
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static int dw9800w_get_ctrl(struct v4l2_ctrl *ctrl)
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{
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struct dw9800w_device *dev_vcm = to_dw9800w_vcm(ctrl);
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if (ctrl->id == V4L2_CID_FOCUS_ABSOLUTE)
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return dw9800w_get_pos(dev_vcm, &ctrl->val);
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return -EINVAL;
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}
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static int dw9800w_set_ctrl(struct v4l2_ctrl *ctrl)
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{
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struct dw9800w_device *dev_vcm = to_dw9800w_vcm(ctrl);
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struct i2c_client *client = dev_vcm->client;
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unsigned int dest_pos = ctrl->val;
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int move_pos;
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long mv_us;
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int ret = 0;
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dev_dbg(&client->dev, "ctrl->id: 0x%x, ctrl->val: 0x%x\n",
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ctrl->id, ctrl->val);
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if (ctrl->id == V4L2_CID_FOCUS_ABSOLUTE) {
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if (dest_pos > VCMDRV_MAX_LOG) {
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dev_info(&client->dev,
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"%s dest_pos is error. %d > %d\n",
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__func__, dest_pos, VCMDRV_MAX_LOG);
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return -EINVAL;
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}
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/* calculate move time */
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move_pos = dev_vcm->current_related_pos - dest_pos;
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if (move_pos < 0)
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move_pos = -move_pos;
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ret = dw9800w_set_pos(dev_vcm, dest_pos);
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if (dev_vcm->step_mode == LSC_MODE)
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dev_vcm->move_us = ((dev_vcm->vcm_movefull_t * (uint32_t)move_pos) /
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VCMDRV_MAX_LOG);
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else
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dev_vcm->move_us = dev_vcm->vcm_movefull_t;
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dev_dbg(&client->dev,
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"dest_pos %d, move_us %ld\n",
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dest_pos, dev_vcm->move_us);
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dev_vcm->start_move_tv = ns_to_kernel_old_timeval(ktime_get_ns());
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mv_us = dev_vcm->start_move_tv.tv_usec +
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dev_vcm->move_us;
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if (mv_us >= 1000000) {
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dev_vcm->end_move_tv.tv_sec =
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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 dw9800w_vcm_ctrl_ops = {
|
||||||
|
.g_volatile_ctrl = dw9800w_get_ctrl,
|
||||||
|
.s_ctrl = dw9800w_set_ctrl,
|
||||||
|
};
|
||||||
|
|
||||||
|
static int dw9800w_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 dw9800w_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
|
||||||
|
{
|
||||||
|
pm_runtime_put(sd->dev);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct v4l2_subdev_internal_ops dw9800w_int_ops = {
|
||||||
|
.open = dw9800w_open,
|
||||||
|
.close = dw9800w_close,
|
||||||
|
};
|
||||||
|
|
||||||
|
static void dw9800w_update_vcm_cfg(struct dw9800w_device *dev_vcm)
|
||||||
|
{
|
||||||
|
struct i2c_client *client = dev_vcm->client;
|
||||||
|
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 * DW9800W_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 *
|
||||||
|
DW9800W_MAX_REG / dev_vcm->max_ma;
|
||||||
|
dev_vcm->rated_current = dev_vcm->vcm_cfg.rated_ma *
|
||||||
|
DW9800W_MAX_REG / dev_vcm->max_ma;
|
||||||
|
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 dw9800w_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
|
||||||
|
{
|
||||||
|
struct dw9800w_device *dev_vcm = sd_to_dw9800w_vcm(sd);
|
||||||
|
struct i2c_client *client = dev_vcm->client;
|
||||||
|
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, "dw9800w_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;
|
||||||
|
|
||||||
|
if (vcm_cfg->start_ma == 0 && vcm_cfg->rated_ma == 0) {
|
||||||
|
dev_err(&client->dev,
|
||||||
|
"vcm_cfg err, start_ma %d, rated_ma %d\n",
|
||||||
|
vcm_cfg->start_ma, vcm_cfg->rated_ma);
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
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;
|
||||||
|
dw9800w_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 dw9800w_compat_ioctl32(struct v4l2_subdev *sd,
|
||||||
|
unsigned int cmd, unsigned long arg)
|
||||||
|
{
|
||||||
|
struct dw9800w_device *dev_vcm = sd_to_dw9800w_vcm(sd);
|
||||||
|
struct i2c_client *client = dev_vcm->client;
|
||||||
|
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 = dw9800w_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 = dw9800w_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 = dw9800w_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 dw9800w_core_ops = {
|
||||||
|
.ioctl = dw9800w_ioctl,
|
||||||
|
#ifdef CONFIG_COMPAT
|
||||||
|
.compat_ioctl32 = dw9800w_compat_ioctl32
|
||||||
|
#endif
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct v4l2_subdev_ops dw9800w_ops = {
|
||||||
|
.core = &dw9800w_core_ops,
|
||||||
|
};
|
||||||
|
|
||||||
|
static void dw9800w_subdev_cleanup(struct dw9800w_device *dw9800w_dev)
|
||||||
|
{
|
||||||
|
v4l2_device_unregister_subdev(&dw9800w_dev->sd);
|
||||||
|
v4l2_device_unregister(&dw9800w_dev->vdev);
|
||||||
|
v4l2_ctrl_handler_free(&dw9800w_dev->ctrls_vcm);
|
||||||
|
media_entity_cleanup(&dw9800w_dev->sd.entity);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int dw9800w_init_controls(struct dw9800w_device *dev_vcm)
|
||||||
|
{
|
||||||
|
struct v4l2_ctrl_handler *hdl = &dev_vcm->ctrls_vcm;
|
||||||
|
const struct v4l2_ctrl_ops *ops = &dw9800w_vcm_ctrl_ops;
|
||||||
|
|
||||||
|
v4l2_ctrl_handler_init(hdl, 1);
|
||||||
|
|
||||||
|
v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FOCUS_ABSOLUTE,
|
||||||
|
0, VCMDRV_MAX_LOG, 1, 32);
|
||||||
|
|
||||||
|
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 __dw9800w_set_power(struct dw9800w_device *dw9800w_dev, bool on)
|
||||||
|
{
|
||||||
|
if (dw9800w_dev->power_gpio)
|
||||||
|
gpiod_direction_output(dw9800w_dev->power_gpio, on);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int dw9800w_check_id(struct dw9800w_device *dw9800w_dev)
|
||||||
|
{
|
||||||
|
int ret = 0;
|
||||||
|
unsigned int pid = 0x00;
|
||||||
|
struct i2c_client *client = dw9800w_dev->client;
|
||||||
|
struct device *dev = &client->dev;
|
||||||
|
|
||||||
|
__dw9800w_set_power(dw9800w_dev, true);
|
||||||
|
ret = dw9800w_read_reg(client, DW9800W_REG_CHIP_ID, 1, &pid);
|
||||||
|
|
||||||
|
if (pid != DW9800W_CHIP_ID) {
|
||||||
|
dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", pid, ret);
|
||||||
|
return -ENODEV;
|
||||||
|
}
|
||||||
|
|
||||||
|
dev_info(&dw9800w_dev->client->dev,
|
||||||
|
"Detected dw9800w vcm id:0x%x\n", DW9800W_CHIP_ID);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
static int dw9800w_probe_init(struct i2c_client *client)
|
||||||
|
{
|
||||||
|
int ret = 0;
|
||||||
|
|
||||||
|
/* Default goto power down mode when finished probe */
|
||||||
|
ret = dw9800w_write_reg(client, 0x02, 1, 0x01);
|
||||||
|
if (ret)
|
||||||
|
goto err;
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
err:
|
||||||
|
dev_err(&client->dev, "probe init failed with error %d\n", ret);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int dw9800w_probe(struct i2c_client *client,
|
||||||
|
const struct i2c_device_id *id)
|
||||||
|
{
|
||||||
|
struct device_node *np = of_node_get(client->dev.of_node);
|
||||||
|
struct dw9800w_device *dw9800w_dev;
|
||||||
|
unsigned int max_ma, start_ma, rated_ma, step_mode;
|
||||||
|
unsigned int t_src, t_div;
|
||||||
|
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 = DW9800W_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 = DW9800W_MAX_CURRENT;
|
||||||
|
|
||||||
|
if (of_property_read_u32(np,
|
||||||
|
OF_CAMERA_VCMDRV_START_CURRENT,
|
||||||
|
(unsigned int *)&start_ma)) {
|
||||||
|
start_ma = DW9800W_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 = DW9800W_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 = DW9800W_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_T_SRC,
|
||||||
|
(unsigned int *)&t_src)) {
|
||||||
|
t_src = DW9800W_DEFAULT_T_SACT;
|
||||||
|
dev_info(&client->dev,
|
||||||
|
"could not get module %s from dts!\n",
|
||||||
|
OF_CAMERA_VCMDRV_T_SRC);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (of_property_read_u32(np,
|
||||||
|
OF_CAMERA_VCMDRV_T_DIV,
|
||||||
|
(unsigned int *)&t_div)) {
|
||||||
|
t_div = DW9800W_DEFAULT_T_DIV;
|
||||||
|
dev_info(&client->dev,
|
||||||
|
"could not get module %s from dts!\n",
|
||||||
|
OF_CAMERA_VCMDRV_T_DIV);
|
||||||
|
}
|
||||||
|
|
||||||
|
dw9800w_dev = devm_kzalloc(&client->dev, sizeof(*dw9800w_dev),
|
||||||
|
GFP_KERNEL);
|
||||||
|
if (dw9800w_dev == NULL)
|
||||||
|
return -ENOMEM;
|
||||||
|
|
||||||
|
ret = of_property_read_u32(np, RKMODULE_CAMERA_MODULE_INDEX,
|
||||||
|
&dw9800w_dev->module_index);
|
||||||
|
ret |= of_property_read_string(np, RKMODULE_CAMERA_MODULE_FACING,
|
||||||
|
&dw9800w_dev->module_facing);
|
||||||
|
if (ret) {
|
||||||
|
dev_err(&client->dev,
|
||||||
|
"could not get module information!\n");
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
dw9800w_dev->client = client;
|
||||||
|
dw9800w_dev->power_gpio = devm_gpiod_get(&client->dev,
|
||||||
|
"power", GPIOD_OUT_LOW);
|
||||||
|
if (IS_ERR(dw9800w_dev->power_gpio)) {
|
||||||
|
dw9800w_dev->power_gpio = NULL;
|
||||||
|
dev_warn(&client->dev,
|
||||||
|
"Failed to get power-gpios, maybe no use\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
ret = dw9800w_check_id(dw9800w_dev);
|
||||||
|
if (ret)
|
||||||
|
goto err_power_off;
|
||||||
|
|
||||||
|
/* enter power down mode */
|
||||||
|
dw9800w_probe_init(client);
|
||||||
|
|
||||||
|
v4l2_i2c_subdev_init(&dw9800w_dev->sd, client, &dw9800w_ops);
|
||||||
|
dw9800w_dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
|
||||||
|
dw9800w_dev->sd.internal_ops = &dw9800w_int_ops;
|
||||||
|
|
||||||
|
ret = dw9800w_init_controls(dw9800w_dev);
|
||||||
|
if (ret)
|
||||||
|
goto err_cleanup;
|
||||||
|
|
||||||
|
ret = media_entity_pads_init(&dw9800w_dev->sd.entity, 0, NULL);
|
||||||
|
if (ret < 0)
|
||||||
|
goto err_cleanup;
|
||||||
|
|
||||||
|
sd = &dw9800w_dev->sd;
|
||||||
|
sd->entity.function = MEDIA_ENT_F_LENS;
|
||||||
|
|
||||||
|
memset(facing, 0, sizeof(facing));
|
||||||
|
if (strcmp(dw9800w_dev->module_facing, "back") == 0)
|
||||||
|
facing[0] = 'b';
|
||||||
|
else
|
||||||
|
facing[0] = 'f';
|
||||||
|
|
||||||
|
snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s",
|
||||||
|
dw9800w_dev->module_index, facing,
|
||||||
|
DW9800W_NAME, dev_name(sd->dev));
|
||||||
|
ret = v4l2_async_register_subdev(sd);
|
||||||
|
if (ret)
|
||||||
|
dev_err(&client->dev, "v4l2 async register subdev failed\n");
|
||||||
|
|
||||||
|
dw9800w_dev->max_ma = max_ma;
|
||||||
|
dw9800w_dev->vcm_cfg.start_ma = start_ma;
|
||||||
|
dw9800w_dev->vcm_cfg.rated_ma = rated_ma;
|
||||||
|
dw9800w_dev->vcm_cfg.step_mode = step_mode;
|
||||||
|
dw9800w_update_vcm_cfg(dw9800w_dev);
|
||||||
|
dw9800w_dev->move_us = 0;
|
||||||
|
dw9800w_dev->current_related_pos = VCMDRV_MAX_LOG;
|
||||||
|
dw9800w_dev->start_move_tv = ns_to_kernel_old_timeval(ktime_get_ns());
|
||||||
|
dw9800w_dev->end_move_tv = ns_to_kernel_old_timeval(ktime_get_ns());
|
||||||
|
|
||||||
|
dw9800w_dev->t_src = t_src;
|
||||||
|
dw9800w_dev->t_div = t_div;
|
||||||
|
|
||||||
|
i2c_set_clientdata(client, dw9800w_dev);
|
||||||
|
mutex_init(&dw9800w_dev->lock);
|
||||||
|
|
||||||
|
dw9800w_dev->vcm_movefull_t =
|
||||||
|
dw9800w_move_time(dw9800w_dev, DW9800W_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:
|
||||||
|
dw9800w_subdev_cleanup(dw9800w_dev);
|
||||||
|
err_power_off:
|
||||||
|
__dw9800w_set_power(dw9800w_dev, false);
|
||||||
|
|
||||||
|
dev_err(&client->dev, "Probe failed: %d\n", ret);
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int dw9800w_remove(struct i2c_client *client)
|
||||||
|
{
|
||||||
|
struct dw9800w_device *dw9800w_dev = i2c_get_clientdata(client);
|
||||||
|
|
||||||
|
mutex_destroy(&dw9800w_dev->lock);
|
||||||
|
pm_runtime_disable(&client->dev);
|
||||||
|
dw9800w_subdev_cleanup(dw9800w_dev);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int dw9800w_init(struct i2c_client *client)
|
||||||
|
{
|
||||||
|
struct dw9800w_device *dev_vcm = i2c_get_clientdata(client);
|
||||||
|
int ret = 0;
|
||||||
|
u32 ring = 0;
|
||||||
|
u32 mode_val = 0;
|
||||||
|
u32 algo_time = 0;
|
||||||
|
|
||||||
|
|
||||||
|
/* Delay 200us~300us */
|
||||||
|
usleep_range(200, 300);
|
||||||
|
ret = dw9800w_write_reg(client, 0x02, 1, 0x00);
|
||||||
|
if (ret)
|
||||||
|
goto err;
|
||||||
|
usleep_range(100, 200);
|
||||||
|
|
||||||
|
if (dev_vcm->step_mode != DIRECT_MODE &&
|
||||||
|
dev_vcm->step_mode != LSC_MODE)
|
||||||
|
ring = 0x02;
|
||||||
|
ret = dw9800w_write_reg(client, 0x02, 1, ring);
|
||||||
|
if (ret)
|
||||||
|
goto err;
|
||||||
|
switch (dev_vcm->step_mode) {
|
||||||
|
case SAC2_MODE:
|
||||||
|
case SAC3_MODE:
|
||||||
|
case SAC4_MODE:
|
||||||
|
case SAC5_MODE:
|
||||||
|
mode_val |= dev_vcm->step_mode << 6;
|
||||||
|
break;
|
||||||
|
case LSC_MODE:
|
||||||
|
mode_val |= 0x80;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
mode_val |= ((dev_vcm->t_div >> 2) & 0x01);
|
||||||
|
algo_time = dev_vcm->t_div << 6 | dev_vcm->t_src;
|
||||||
|
ret = dw9800w_write_reg(client, 0x06, 1, mode_val);
|
||||||
|
if (ret)
|
||||||
|
goto err;
|
||||||
|
ret = dw9800w_write_reg(client, 0x07, 1, algo_time);
|
||||||
|
if (ret)
|
||||||
|
goto err;
|
||||||
|
usleep_range(100, 200);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
err:
|
||||||
|
dev_err(&client->dev, "init failed with error %d\n", ret);
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int __maybe_unused dw9800w_vcm_suspend(struct device *dev)
|
||||||
|
{
|
||||||
|
struct i2c_client *client = to_i2c_client(dev);
|
||||||
|
int ret = 0;
|
||||||
|
|
||||||
|
/* set to power down mode */
|
||||||
|
ret = dw9800w_write_reg(client, 0x02, 1, 0x01);
|
||||||
|
if (ret)
|
||||||
|
dev_err(&client->dev, "failed to set power down mode!\n");
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int __maybe_unused dw9800w_vcm_resume(struct device *dev)
|
||||||
|
{
|
||||||
|
struct i2c_client *client = to_i2c_client(dev);
|
||||||
|
struct dw9800w_device *dev_vcm = i2c_get_clientdata(client);
|
||||||
|
|
||||||
|
dw9800w_init(client);
|
||||||
|
dw9800w_set_pos(dev_vcm, dev_vcm->current_related_pos);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct i2c_device_id dw9800w_id_table[] = {
|
||||||
|
{ DW9800W_NAME, 0 },
|
||||||
|
{ { 0 } }
|
||||||
|
};
|
||||||
|
MODULE_DEVICE_TABLE(i2c, dw9800w_id_table);
|
||||||
|
|
||||||
|
static const struct of_device_id dw9800w_of_table[] = {
|
||||||
|
{ .compatible = "dongwoon,dw9800w" },
|
||||||
|
{ { 0 } }
|
||||||
|
};
|
||||||
|
MODULE_DEVICE_TABLE(of, dw9800w_of_table);
|
||||||
|
|
||||||
|
static const struct dev_pm_ops dw9800w_pm_ops = {
|
||||||
|
SET_SYSTEM_SLEEP_PM_OPS(dw9800w_vcm_suspend, dw9800w_vcm_resume)
|
||||||
|
SET_RUNTIME_PM_OPS(dw9800w_vcm_suspend, dw9800w_vcm_resume, NULL)
|
||||||
|
};
|
||||||
|
|
||||||
|
static struct i2c_driver dw9800w_i2c_driver = {
|
||||||
|
.driver = {
|
||||||
|
.name = DW9800W_NAME,
|
||||||
|
.pm = &dw9800w_pm_ops,
|
||||||
|
.of_match_table = dw9800w_of_table,
|
||||||
|
},
|
||||||
|
.probe = &dw9800w_probe,
|
||||||
|
.remove = &dw9800w_remove,
|
||||||
|
.id_table = dw9800w_id_table,
|
||||||
|
};
|
||||||
|
|
||||||
|
module_i2c_driver(dw9800w_i2c_driver);
|
||||||
|
|
||||||
|
MODULE_DESCRIPTION("DW9800W VCM driver");
|
||||||
|
MODULE_LICENSE("GPL");
|
||||||
Reference in New Issue
Block a user