diff options
Diffstat (limited to 'drivers/staging/media/atomisp/i2c/imx/dw9714.c')
| -rw-r--r-- | drivers/staging/media/atomisp/i2c/imx/dw9714.c | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/drivers/staging/media/atomisp/i2c/imx/dw9714.c b/drivers/staging/media/atomisp/i2c/imx/dw9714.c deleted file mode 100644 index f96855454313..000000000000 --- a/drivers/staging/media/atomisp/i2c/imx/dw9714.c +++ /dev/null @@ -1,224 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/bitops.h> -#include <linux/device.h> -#include <linux/delay.h> -#include <linux/errno.h> -#include <linux/fs.h> -#include <linux/gpio.h> -#include <linux/init.h> -#include <linux/i2c.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/kmod.h> -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/types.h> -#include <media/v4l2-device.h> -#include <asm/intel-mid.h> - -#include "dw9714.h" - -static struct dw9714_device dw9714_dev; -static int dw9714_i2c_write(struct i2c_client *client, u16 data) -{ - struct i2c_msg msg; - const int num_msg = 1; - int ret; - u16 val; - - val = cpu_to_be16(data); - msg.addr = DW9714_VCM_ADDR; - msg.flags = 0; - msg.len = DW9714_16BIT; - msg.buf = (u8 *)&val; - - ret = i2c_transfer(client->adapter, &msg, 1); - - return ret == num_msg ? 0 : -EIO; -} - -int dw9714_vcm_power_up(struct v4l2_subdev *sd) -{ - int ret; - - /* Enable power */ - ret = dw9714_dev.platform_data->power_ctrl(sd, 1); - /* waiting time requested by DW9714A(vcm) */ - usleep_range(12000, 12500); - return ret; -} - -int dw9714_vcm_power_down(struct v4l2_subdev *sd) -{ - return dw9714_dev.platform_data->power_ctrl(sd, 0); -} - - -static int dw9714_t_focus_vcm(struct v4l2_subdev *sd, u16 val) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret = -EINVAL; - u8 mclk = vcm_step_mclk(dw9714_dev.vcm_settings.step_setting); - u8 s = vcm_step_s(dw9714_dev.vcm_settings.step_setting); - - /* - * For different mode, VCM_PROTECTION_OFF/ON required by the - * control procedure. For DW9714_DIRECT/DLC mode, slew value is - * VCM_DEFAULT_S(0). - */ - switch (dw9714_dev.vcm_mode) { - case DW9714_DIRECT: - if (dw9714_dev.vcm_settings.update) { - ret = dw9714_i2c_write(client, VCM_PROTECTION_OFF); - if (ret) - return ret; - ret = dw9714_i2c_write(client, DIRECT_VCM); - if (ret) - return ret; - ret = dw9714_i2c_write(client, VCM_PROTECTION_ON); - if (ret) - return ret; - dw9714_dev.vcm_settings.update = false; - } - ret = dw9714_i2c_write(client, - vcm_val(val, VCM_DEFAULT_S)); - break; - case DW9714_LSC: - if (dw9714_dev.vcm_settings.update) { - ret = dw9714_i2c_write(client, VCM_PROTECTION_OFF); - if (ret) - return ret; - ret = dw9714_i2c_write(client, - vcm_dlc_mclk(DLC_DISABLE, mclk)); - if (ret) - return ret; - ret = dw9714_i2c_write(client, - vcm_tsrc(dw9714_dev.vcm_settings.t_src)); - if (ret) - return ret; - ret = dw9714_i2c_write(client, VCM_PROTECTION_ON); - if (ret) - return ret; - dw9714_dev.vcm_settings.update = false; - } - ret = dw9714_i2c_write(client, vcm_val(val, s)); - break; - case DW9714_DLC: - if (dw9714_dev.vcm_settings.update) { - ret = dw9714_i2c_write(client, VCM_PROTECTION_OFF); - if (ret) - return ret; - ret = dw9714_i2c_write(client, - vcm_dlc_mclk(DLC_ENABLE, mclk)); - if (ret) - return ret; - ret = dw9714_i2c_write(client, - vcm_tsrc(dw9714_dev.vcm_settings.t_src)); - if (ret) - return ret; - ret = dw9714_i2c_write(client, VCM_PROTECTION_ON); - if (ret) - return ret; - dw9714_dev.vcm_settings.update = false; - } - ret = dw9714_i2c_write(client, - vcm_val(val, VCM_DEFAULT_S)); - break; - } - return ret; -} - -int dw9714_t_focus_abs(struct v4l2_subdev *sd, s32 value) -{ - int ret; - - value = clamp(value, 0, DW9714_MAX_FOCUS_POS); - ret = dw9714_t_focus_vcm(sd, value); - if (ret == 0) { - dw9714_dev.number_of_steps = value - dw9714_dev.focus; - dw9714_dev.focus = value; - getnstimeofday(&(dw9714_dev.timestamp_t_focus_abs)); - } - - return ret; -} - -int dw9714_t_focus_abs_init(struct v4l2_subdev *sd) -{ - int ret; - - ret = dw9714_t_focus_vcm(sd, DW9714_DEFAULT_FOCUS_POS); - if (ret == 0) { - dw9714_dev.number_of_steps = - DW9714_DEFAULT_FOCUS_POS - dw9714_dev.focus; - dw9714_dev.focus = DW9714_DEFAULT_FOCUS_POS; - getnstimeofday(&(dw9714_dev.timestamp_t_focus_abs)); - } - - return ret; -} - -int dw9714_t_focus_rel(struct v4l2_subdev *sd, s32 value) -{ - - return dw9714_t_focus_abs(sd, dw9714_dev.focus + value); -} - -int dw9714_q_focus_status(struct v4l2_subdev *sd, s32 *value) -{ - u32 status = 0; - struct timespec temptime; - const struct timespec timedelay = { - 0, - min_t(u32, abs(dw9714_dev.number_of_steps)*DELAY_PER_STEP_NS, - DELAY_MAX_PER_STEP_NS), - }; - - ktime_get_ts(&temptime); - - temptime = timespec_sub(temptime, (dw9714_dev.timestamp_t_focus_abs)); - - if (timespec_compare(&temptime, &timedelay) <= 0) { - status |= ATOMISP_FOCUS_STATUS_MOVING; - status |= ATOMISP_FOCUS_HP_IN_PROGRESS; - } else { - status |= ATOMISP_FOCUS_STATUS_ACCEPTS_NEW_MOVE; - status |= ATOMISP_FOCUS_HP_COMPLETE; - } - *value = status; - - return 0; -} - -int dw9714_q_focus_abs(struct v4l2_subdev *sd, s32 *value) -{ - s32 val; - - dw9714_q_focus_status(sd, &val); - - if (val & ATOMISP_FOCUS_STATUS_MOVING) - *value = dw9714_dev.focus - dw9714_dev.number_of_steps; - else - *value = dw9714_dev.focus; - - return 0; -} - -int dw9714_t_vcm_slew(struct v4l2_subdev *sd, s32 value) -{ - dw9714_dev.vcm_settings.step_setting = value; - dw9714_dev.vcm_settings.update = true; - - return 0; -} - -int dw9714_t_vcm_timing(struct v4l2_subdev *sd, s32 value) -{ - dw9714_dev.vcm_settings.t_src = value; - dw9714_dev.vcm_settings.update = true; - - return 0; -} |