diff options
Diffstat (limited to 'drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c')
| -rw-r--r-- | drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c | 1993 |
1 files changed, 0 insertions, 1993 deletions
diff --git a/drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c b/drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c deleted file mode 100644 index 714297c36b3e..000000000000 --- a/drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c +++ /dev/null @@ -1,1993 +0,0 @@ -/* - * Support for OmniVision OV5693 1080p HD camera sensor. - * - * Copyright (c) 2013 Intel Corporation. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/string.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/kmod.h> -#include <linux/device.h> -#include <linux/delay.h> -#include <linux/slab.h> -#include <linux/i2c.h> -#include <linux/moduleparam.h> -#include <media/v4l2-device.h> -#include <linux/io.h> -#include <linux/acpi.h> -#include "../../include/linux/atomisp_gmin_platform.h" - -#include "ov5693.h" -#include "ad5823.h" - -#define __cci_delay(t) \ - do { \ - if ((t) < 10) { \ - usleep_range((t) * 1000, ((t) + 1) * 1000); \ - } else { \ - msleep((t)); \ - } \ - } while (0) - -/* Value 30ms reached through experimentation on byt ecs. - * The DS specifies a much lower value but when using a smaller value - * the I2C bus sometimes locks up permanently when starting the camera. - * This issue could not be reproduced on cht, so we can reduce the - * delay value to a lower value when insmod. - */ -static uint up_delay = 30; -module_param(up_delay, uint, 0644); -MODULE_PARM_DESC(up_delay, "Delay prior to the first CCI transaction for ov5693"); - -static int vcm_ad_i2c_wr8(struct i2c_client *client, u8 reg, u8 val) -{ - int err; - struct i2c_msg msg; - u8 buf[2]; - - buf[0] = reg; - buf[1] = val; - - msg.addr = VCM_ADDR; - msg.flags = 0; - msg.len = 2; - msg.buf = &buf[0]; - - err = i2c_transfer(client->adapter, &msg, 1); - if (err != 1) { - dev_err(&client->dev, "%s: vcm i2c fail, err code = %d\n", - __func__, err); - return -EIO; - } - return 0; -} - -static int ad5823_i2c_write(struct i2c_client *client, u8 reg, u8 val) -{ - struct i2c_msg msg; - u8 buf[2]; - - buf[0] = reg; - buf[1] = val; - msg.addr = AD5823_VCM_ADDR; - msg.flags = 0; - msg.len = 0x02; - msg.buf = &buf[0]; - - if (i2c_transfer(client->adapter, &msg, 1) != 1) - return -EIO; - return 0; -} - -static int ad5823_i2c_read(struct i2c_client *client, u8 reg, u8 *val) -{ - struct i2c_msg msg[2]; - u8 buf[2]; - - buf[0] = reg; - buf[1] = 0; - - msg[0].addr = AD5823_VCM_ADDR; - msg[0].flags = 0; - msg[0].len = 0x01; - msg[0].buf = &buf[0]; - - msg[1].addr = 0x0c; - msg[1].flags = I2C_M_RD; - msg[1].len = 0x01; - msg[1].buf = &buf[1]; - *val = 0; - if (i2c_transfer(client->adapter, msg, 2) != 2) - return -EIO; - *val = buf[1]; - return 0; -} - - -static const uint32_t ov5693_embedded_effective_size = 28; - -/* i2c read/write stuff */ -static int ov5693_read_reg(struct i2c_client *client, - u16 data_length, u16 reg, u16 *val) -{ - int err; - struct i2c_msg msg[2]; - unsigned char data[6]; - - if (!client->adapter) { - dev_err(&client->dev, "%s error, no client->adapter\n", - __func__); - return -ENODEV; - } - - if (data_length != OV5693_8BIT && data_length != OV5693_16BIT - && data_length != OV5693_32BIT) { - dev_err(&client->dev, "%s error, invalid data length\n", - __func__); - return -EINVAL; - } - - memset(msg, 0, sizeof(msg)); - - msg[0].addr = client->addr; - msg[0].flags = 0; - msg[0].len = I2C_MSG_LENGTH; - msg[0].buf = data; - - /* high byte goes out first */ - data[0] = (u8)(reg >> 8); - data[1] = (u8)(reg & 0xff); - - msg[1].addr = client->addr; - msg[1].len = data_length; - msg[1].flags = I2C_M_RD; - msg[1].buf = data; - - err = i2c_transfer(client->adapter, msg, 2); - if (err != 2) { - if (err >= 0) - err = -EIO; - dev_err(&client->dev, - "read from offset 0x%x error %d", reg, err); - return err; - } - - *val = 0; - /* high byte comes first */ - if (data_length == OV5693_8BIT) - *val = (u8)data[0]; - else if (data_length == OV5693_16BIT) - *val = be16_to_cpu(*(__be16 *)&data[0]); - else - *val = be32_to_cpu(*(__be32 *)&data[0]); - - return 0; -} - -static int ov5693_i2c_write(struct i2c_client *client, u16 len, u8 *data) -{ - struct i2c_msg msg; - const int num_msg = 1; - int ret; - - msg.addr = client->addr; - msg.flags = 0; - msg.len = len; - msg.buf = data; - ret = i2c_transfer(client->adapter, &msg, 1); - - return ret == num_msg ? 0 : -EIO; -} - -static int vcm_dw_i2c_write(struct i2c_client *client, u16 data) -{ - struct i2c_msg msg; - const int num_msg = 1; - int ret; - __be16 val; - - val = cpu_to_be16(data); - msg.addr = VCM_ADDR; - msg.flags = 0; - msg.len = OV5693_16BIT; - msg.buf = (void *)&val; - - ret = i2c_transfer(client->adapter, &msg, 1); - - return ret == num_msg ? 0 : -EIO; -} - -/* - * Theory: per datasheet, the two VCMs both allow for a 2-byte read. - * The DW9714 doesn't actually specify what this does (it has a - * two-byte write-only protocol, but specifies the read sequence as - * legal), but it returns the same data (zeroes) always, after an - * undocumented initial NAK. The AD5823 has a one-byte address - * register to which all writes go, and subsequent reads will cycle - * through the 8 bytes of registers. Notably, the default values (the - * device is always power-cycled affirmatively, so we can rely on - * these) in AD5823 are not pairwise repetitions of the same 16 bit - * word. So all we have to do is sequentially read two bytes at a - * time and see if we detect a difference in any of the first four - * pairs. - */ -static int vcm_detect(struct i2c_client *client) -{ - int i, ret; - struct i2c_msg msg; - u16 data0 = 0, data; - - for (i = 0; i < 4; i++) { - msg.addr = VCM_ADDR; - msg.flags = I2C_M_RD; - msg.len = sizeof(data); - msg.buf = (u8 *)&data; - ret = i2c_transfer(client->adapter, &msg, 1); - - /* - * DW9714 always fails the first read and returns - * zeroes for subsequent ones - */ - if (i == 0 && ret == -EREMOTEIO) { - data0 = 0; - continue; - } - - if (i == 0) - data0 = data; - - if (data != data0) - return VCM_AD5823; - } - return ret == 1 ? VCM_DW9714 : ret; -} - -static int ov5693_write_reg(struct i2c_client *client, u16 data_length, - u16 reg, u16 val) -{ - int ret; - unsigned char data[4] = {0}; - __be16 *wreg = (void *)data; - const u16 len = data_length + sizeof(u16); /* 16-bit address + data */ - - if (data_length != OV5693_8BIT && data_length != OV5693_16BIT) { - dev_err(&client->dev, - "%s error, invalid data_length\n", __func__); - return -EINVAL; - } - - /* high byte goes out first */ - *wreg = cpu_to_be16(reg); - - if (data_length == OV5693_8BIT) { - data[2] = (u8)(val); - } else { - /* OV5693_16BIT */ - __be16 *wdata = (void *)&data[2]; - - *wdata = cpu_to_be16(val); - } - - ret = ov5693_i2c_write(client, len, data); - if (ret) - dev_err(&client->dev, - "write error: wrote 0x%x to offset 0x%x error %d", - val, reg, ret); - - return ret; -} - -/* - * ov5693_write_reg_array - Initializes a list of OV5693 registers - * @client: i2c driver client structure - * @reglist: list of registers to be written - * - * This function initializes a list of registers. When consecutive addresses - * are found in a row on the list, this function creates a buffer and sends - * consecutive data in a single i2c_transfer(). - * - * __ov5693_flush_reg_array, __ov5693_buf_reg_array() and - * __ov5693_write_reg_is_consecutive() are internal functions to - * ov5693_write_reg_array_fast() and should be not used anywhere else. - * - */ - -static int __ov5693_flush_reg_array(struct i2c_client *client, - struct ov5693_write_ctrl *ctrl) -{ - u16 size; - __be16 *reg = (void *)&ctrl->buffer.addr; - - if (ctrl->index == 0) - return 0; - - size = sizeof(u16) + ctrl->index; /* 16-bit address + data */ - - *reg = cpu_to_be16(ctrl->buffer.addr); - ctrl->index = 0; - - return ov5693_i2c_write(client, size, (u8 *)reg); -} - -static int __ov5693_buf_reg_array(struct i2c_client *client, - struct ov5693_write_ctrl *ctrl, - const struct ov5693_reg *next) -{ - int size; - __be16 *data16; - - switch (next->type) { - case OV5693_8BIT: - size = 1; - ctrl->buffer.data[ctrl->index] = (u8)next->val; - break; - case OV5693_16BIT: - size = 2; - - data16 = (void *)&ctrl->buffer.data[ctrl->index]; - *data16 = cpu_to_be16((u16)next->val); - break; - default: - return -EINVAL; - } - - /* When first item is added, we need to store its starting address */ - if (ctrl->index == 0) - ctrl->buffer.addr = next->reg; - - ctrl->index += size; - - /* - * Buffer cannot guarantee free space for u32? Better flush it to avoid - * possible lack of memory for next item. - */ - if (ctrl->index + sizeof(u16) >= OV5693_MAX_WRITE_BUF_SIZE) - return __ov5693_flush_reg_array(client, ctrl); - - return 0; -} - -static int __ov5693_write_reg_is_consecutive(struct i2c_client *client, - struct ov5693_write_ctrl *ctrl, - const struct ov5693_reg *next) -{ - if (ctrl->index == 0) - return 1; - - return ctrl->buffer.addr + ctrl->index == next->reg; -} - -static int ov5693_write_reg_array(struct i2c_client *client, - const struct ov5693_reg *reglist) -{ - const struct ov5693_reg *next = reglist; - struct ov5693_write_ctrl ctrl; - int err; - - ctrl.index = 0; - for (; next->type != OV5693_TOK_TERM; next++) { - switch (next->type & OV5693_TOK_MASK) { - case OV5693_TOK_DELAY: - err = __ov5693_flush_reg_array(client, &ctrl); - if (err) - return err; - msleep(next->val); - break; - default: - /* - * If next address is not consecutive, data needs to be - * flushed before proceed. - */ - if (!__ov5693_write_reg_is_consecutive(client, &ctrl, - next)) { - err = __ov5693_flush_reg_array(client, &ctrl); - if (err) - return err; - } - err = __ov5693_buf_reg_array(client, &ctrl, next); - if (err) { - dev_err(&client->dev, - "%s: write error, aborted\n", - __func__); - return err; - } - break; - } - } - - return __ov5693_flush_reg_array(client, &ctrl); -} -static int ov5693_g_focal(struct v4l2_subdev *sd, s32 *val) -{ - *val = (OV5693_FOCAL_LENGTH_NUM << 16) | OV5693_FOCAL_LENGTH_DEM; - return 0; -} - -static int ov5693_g_fnumber(struct v4l2_subdev *sd, s32 *val) -{ - /*const f number for imx*/ - *val = (OV5693_F_NUMBER_DEFAULT_NUM << 16) | OV5693_F_NUMBER_DEM; - return 0; -} - -static int ov5693_g_fnumber_range(struct v4l2_subdev *sd, s32 *val) -{ - *val = (OV5693_F_NUMBER_DEFAULT_NUM << 24) | - (OV5693_F_NUMBER_DEM << 16) | - (OV5693_F_NUMBER_DEFAULT_NUM << 8) | OV5693_F_NUMBER_DEM; - return 0; -} - -static int ov5693_g_bin_factor_x(struct v4l2_subdev *sd, s32 *val) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - - *val = ov5693_res[dev->fmt_idx].bin_factor_x; - - return 0; -} - -static int ov5693_g_bin_factor_y(struct v4l2_subdev *sd, s32 *val) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - - *val = ov5693_res[dev->fmt_idx].bin_factor_y; - - return 0; -} - -static int ov5693_get_intg_factor(struct i2c_client *client, - struct camera_mipi_info *info, - const struct ov5693_resolution *res) -{ - struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct ov5693_device *dev = to_ov5693_sensor(sd); - struct atomisp_sensor_mode_data *buf = &info->data; - unsigned int pix_clk_freq_hz; - u16 reg_val; - int ret; - - if (info == NULL) - return -EINVAL; - - /* pixel clock */ - pix_clk_freq_hz = res->pix_clk_freq * 1000000; - - dev->vt_pix_clk_freq_mhz = pix_clk_freq_hz; - buf->vt_pix_clk_freq_mhz = pix_clk_freq_hz; - - /* get integration time */ - buf->coarse_integration_time_min = OV5693_COARSE_INTG_TIME_MIN; - buf->coarse_integration_time_max_margin = - OV5693_COARSE_INTG_TIME_MAX_MARGIN; - - buf->fine_integration_time_min = OV5693_FINE_INTG_TIME_MIN; - buf->fine_integration_time_max_margin = - OV5693_FINE_INTG_TIME_MAX_MARGIN; - - buf->fine_integration_time_def = OV5693_FINE_INTG_TIME_MIN; - buf->frame_length_lines = res->lines_per_frame; - buf->line_length_pck = res->pixels_per_line; - buf->read_mode = res->bin_mode; - - /* get the cropping and output resolution to ISP for this mode. */ - ret = ov5693_read_reg(client, OV5693_16BIT, - OV5693_HORIZONTAL_START_H, ®_val); - if (ret) - return ret; - buf->crop_horizontal_start = reg_val; - - ret = ov5693_read_reg(client, OV5693_16BIT, - OV5693_VERTICAL_START_H, ®_val); - if (ret) - return ret; - buf->crop_vertical_start = reg_val; - - ret = ov5693_read_reg(client, OV5693_16BIT, - OV5693_HORIZONTAL_END_H, ®_val); - if (ret) - return ret; - buf->crop_horizontal_end = reg_val; - - ret = ov5693_read_reg(client, OV5693_16BIT, - OV5693_VERTICAL_END_H, ®_val); - if (ret) - return ret; - buf->crop_vertical_end = reg_val; - - ret = ov5693_read_reg(client, OV5693_16BIT, - OV5693_HORIZONTAL_OUTPUT_SIZE_H, ®_val); - if (ret) - return ret; - buf->output_width = reg_val; - - ret = ov5693_read_reg(client, OV5693_16BIT, - OV5693_VERTICAL_OUTPUT_SIZE_H, ®_val); - if (ret) - return ret; - buf->output_height = reg_val; - - buf->binning_factor_x = res->bin_factor_x ? - res->bin_factor_x : 1; - buf->binning_factor_y = res->bin_factor_y ? - res->bin_factor_y : 1; - return 0; -} - -static long __ov5693_set_exposure(struct v4l2_subdev *sd, int coarse_itg, - int gain, int digitgain) - -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct ov5693_device *dev = to_ov5693_sensor(sd); - u16 vts, hts; - int ret, exp_val; - - hts = ov5693_res[dev->fmt_idx].pixels_per_line; - vts = ov5693_res[dev->fmt_idx].lines_per_frame; - /* - * If coarse_itg is larger than 1<<15, can not write to reg directly. - * The way is to write coarse_itg/2 to the reg, meanwhile write 2*hts - * to the reg. - */ - if (coarse_itg > (1 << 15)) { - hts = hts * 2; - coarse_itg = (int)coarse_itg / 2; - } - /* group hold */ - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_GROUP_ACCESS, 0x00); - if (ret) { - dev_err(&client->dev, "%s: write %x error, aborted\n", - __func__, OV5693_GROUP_ACCESS); - return ret; - } - - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_TIMING_HTS_H, (hts >> 8) & 0xFF); - if (ret) { - dev_err(&client->dev, "%s: write %x error, aborted\n", - __func__, OV5693_TIMING_HTS_H); - return ret; - } - - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_TIMING_HTS_L, hts & 0xFF); - if (ret) { - dev_err(&client->dev, "%s: write %x error, aborted\n", - __func__, OV5693_TIMING_HTS_L); - return ret; - } - /* Increase the VTS to match exposure + MARGIN */ - if (coarse_itg > vts - OV5693_INTEGRATION_TIME_MARGIN) - vts = (u16) coarse_itg + OV5693_INTEGRATION_TIME_MARGIN; - - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_TIMING_VTS_H, (vts >> 8) & 0xFF); - if (ret) { - dev_err(&client->dev, "%s: write %x error, aborted\n", - __func__, OV5693_TIMING_VTS_H); - return ret; - } - - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_TIMING_VTS_L, vts & 0xFF); - if (ret) { - dev_err(&client->dev, "%s: write %x error, aborted\n", - __func__, OV5693_TIMING_VTS_L); - return ret; - } - - /* set exposure */ - - /* Lower four bit should be 0*/ - exp_val = coarse_itg << 4; - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_EXPOSURE_L, exp_val & 0xFF); - if (ret) { - dev_err(&client->dev, "%s: write %x error, aborted\n", - __func__, OV5693_EXPOSURE_L); - return ret; - } - - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_EXPOSURE_M, (exp_val >> 8) & 0xFF); - if (ret) { - dev_err(&client->dev, "%s: write %x error, aborted\n", - __func__, OV5693_EXPOSURE_M); - return ret; - } - - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_EXPOSURE_H, (exp_val >> 16) & 0x0F); - if (ret) { - dev_err(&client->dev, "%s: write %x error, aborted\n", - __func__, OV5693_EXPOSURE_H); - return ret; - } - - /* Analog gain */ - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_AGC_L, gain & 0xff); - if (ret) { - dev_err(&client->dev, "%s: write %x error, aborted\n", - __func__, OV5693_AGC_L); - return ret; - } - - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_AGC_H, (gain >> 8) & 0xff); - if (ret) { - dev_err(&client->dev, "%s: write %x error, aborted\n", - __func__, OV5693_AGC_H); - return ret; - } - - /* Digital gain */ - if (digitgain) { - ret = ov5693_write_reg(client, OV5693_16BIT, - OV5693_MWB_RED_GAIN_H, digitgain); - if (ret) { - dev_err(&client->dev, "%s: write %x error, aborted\n", - __func__, OV5693_MWB_RED_GAIN_H); - return ret; - } - - ret = ov5693_write_reg(client, OV5693_16BIT, - OV5693_MWB_GREEN_GAIN_H, digitgain); - if (ret) { - dev_err(&client->dev, "%s: write %x error, aborted\n", - __func__, OV5693_MWB_RED_GAIN_H); - return ret; - } - - ret = ov5693_write_reg(client, OV5693_16BIT, - OV5693_MWB_BLUE_GAIN_H, digitgain); - if (ret) { - dev_err(&client->dev, "%s: write %x error, aborted\n", - __func__, OV5693_MWB_RED_GAIN_H); - return ret; - } - } - - /* End group */ - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_GROUP_ACCESS, 0x10); - if (ret) - return ret; - - /* Delay launch group */ - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_GROUP_ACCESS, 0xa0); - if (ret) - return ret; - return ret; -} - -static int ov5693_set_exposure(struct v4l2_subdev *sd, int exposure, - int gain, int digitgain) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - int ret; - - mutex_lock(&dev->input_lock); - ret = __ov5693_set_exposure(sd, exposure, gain, digitgain); - mutex_unlock(&dev->input_lock); - - return ret; -} - -static long ov5693_s_exposure(struct v4l2_subdev *sd, - struct atomisp_exposure *exposure) -{ - u16 coarse_itg = exposure->integration_time[0]; - u16 analog_gain = exposure->gain[0]; - u16 digital_gain = exposure->gain[1]; - - /* we should not accept the invalid value below */ - if (analog_gain == 0) { - struct i2c_client *client = v4l2_get_subdevdata(sd); - - v4l2_err(client, "%s: invalid value\n", __func__); - return -EINVAL; - } - return ov5693_set_exposure(sd, coarse_itg, analog_gain, digital_gain); -} - -static int ov5693_read_otp_reg_array(struct i2c_client *client, u16 size, - u16 addr, u8 *buf) -{ - u16 index; - int ret; - u16 *pVal = NULL; - - for (index = 0; index <= size; index++) { - pVal = (u16 *) (buf + index); - ret = - ov5693_read_reg(client, OV5693_8BIT, addr + index, - pVal); - if (ret) - return ret; - } - - return 0; -} - -static int __ov5693_otp_read(struct v4l2_subdev *sd, u8 *buf) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct ov5693_device *dev = to_ov5693_sensor(sd); - int ret; - int i; - u8 *b = buf; - - dev->otp_size = 0; - for (i = 1; i < OV5693_OTP_BANK_MAX; i++) { - /*set bank NO and OTP read mode. */ - ret = ov5693_write_reg(client, OV5693_8BIT, OV5693_OTP_BANK_REG, (i | 0xc0)); //[7:6] 2'b11 [5:0] bank no - if (ret) { - dev_err(&client->dev, "failed to prepare OTP page\n"); - return ret; - } - //pr_debug("write 0x%x->0x%x\n",OV5693_OTP_BANK_REG,(i|0xc0)); - - /*enable read */ - ret = ov5693_write_reg(client, OV5693_8BIT, OV5693_OTP_READ_REG, OV5693_OTP_MODE_READ); // enable :1 - if (ret) { - dev_err(&client->dev, - "failed to set OTP reading mode page"); - return ret; - } - //pr_debug("write 0x%x->0x%x\n",OV5693_OTP_READ_REG,OV5693_OTP_MODE_READ); - - /* Reading the OTP data array */ - ret = ov5693_read_otp_reg_array(client, OV5693_OTP_BANK_SIZE, - OV5693_OTP_START_ADDR, - b); - if (ret) { - dev_err(&client->dev, "failed to read OTP data\n"); - return ret; - } - - //pr_debug("BANK[%2d] %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", i, *b, *(b+1), *(b+2), *(b+3), *(b+4), *(b+5), *(b+6), *(b+7), *(b+8), *(b+9), *(b+10), *(b+11), *(b+12), *(b+13), *(b+14), *(b+15)); - - //Intel OTP map, try to read 320byts first. - if (i == 21) { - if ((*b) == 0) { - dev->otp_size = 320; - break; - } else { - b = buf; - continue; - } - } else if (i == 24) { //if the first 320bytes data doesn't not exist, try to read the next 32bytes data. - if ((*b) == 0) { - dev->otp_size = 32; - break; - } else { - b = buf; - continue; - } - } else if (i == 27) { //if the prvious 32bytes data doesn't exist, try to read the next 32bytes data again. - if ((*b) == 0) { - dev->otp_size = 32; - break; - } else { - dev->otp_size = 0; // no OTP data. - break; - } - } - - b = b + OV5693_OTP_BANK_SIZE; - } - return 0; -} - -/* - * Read otp data and store it into a kmalloced buffer. - * The caller must kfree the buffer when no more needed. - * @size: set to the size of the returned otp data. - */ -static void *ov5693_otp_read(struct v4l2_subdev *sd) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - u8 *buf; - int ret; - - buf = devm_kzalloc(&client->dev, (OV5693_OTP_DATA_SIZE + 16), GFP_KERNEL); - if (!buf) - return ERR_PTR(-ENOMEM); - - //otp valid after mipi on and sw stream on - ret = ov5693_write_reg(client, OV5693_8BIT, OV5693_FRAME_OFF_NUM, 0x00); - - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_SW_STREAM, OV5693_START_STREAMING); - - ret = __ov5693_otp_read(sd, buf); - - //mipi off and sw stream off after otp read - ret = ov5693_write_reg(client, OV5693_8BIT, OV5693_FRAME_OFF_NUM, 0x0f); - - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_SW_STREAM, OV5693_STOP_STREAMING); - - /* Driver has failed to find valid data */ - if (ret) { - dev_err(&client->dev, "sensor found no valid OTP data\n"); - return ERR_PTR(ret); - } - - return buf; -} - -static int ov5693_g_priv_int_data(struct v4l2_subdev *sd, - struct v4l2_private_int_data *priv) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct ov5693_device *dev = to_ov5693_sensor(sd); - u8 __user *to = priv->data; - u32 read_size = priv->size; - int ret; - - /* No need to copy data if size is 0 */ - if (!read_size) - goto out; - - if (IS_ERR(dev->otp_data)) { - dev_err(&client->dev, "OTP data not available"); - return PTR_ERR(dev->otp_data); - } - - /* Correct read_size value only if bigger than maximum */ - if (read_size > OV5693_OTP_DATA_SIZE) - read_size = OV5693_OTP_DATA_SIZE; - - ret = copy_to_user(to, dev->otp_data, read_size); - if (ret) { - dev_err(&client->dev, "%s: failed to copy OTP data to user\n", - __func__); - return -EFAULT; - } - - pr_debug("%s read_size:%d\n", __func__, read_size); - -out: - /* Return correct size */ - priv->size = dev->otp_size; - - return 0; - -} - -static long ov5693_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) -{ - - switch (cmd) { - case ATOMISP_IOC_S_EXPOSURE: - return ov5693_s_exposure(sd, arg); - case ATOMISP_IOC_G_SENSOR_PRIV_INT_DATA: - return ov5693_g_priv_int_data(sd, arg); - default: - return -EINVAL; - } - return 0; -} - -/* - * This returns the exposure time being used. This should only be used - * for filling in EXIF data, not for actual image processing. - */ -static int ov5693_q_exposure(struct v4l2_subdev *sd, s32 *value) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - u16 reg_v, reg_v2; - int ret; - - /* get exposure */ - ret = ov5693_read_reg(client, OV5693_8BIT, - OV5693_EXPOSURE_L, - ®_v); - if (ret) - goto err; - - ret = ov5693_read_reg(client, OV5693_8BIT, - OV5693_EXPOSURE_M, - ®_v2); - if (ret) - goto err; - - reg_v += reg_v2 << 8; - ret = ov5693_read_reg(client, OV5693_8BIT, - OV5693_EXPOSURE_H, - ®_v2); - if (ret) - goto err; - - *value = reg_v + (((u32)reg_v2 << 16)); -err: - return ret; -} - -static int ad5823_t_focus_vcm(struct v4l2_subdev *sd, u16 val) -{ - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret = -EINVAL; - u8 vcm_code; - - ret = ad5823_i2c_read(client, AD5823_REG_VCM_CODE_MSB, &vcm_code); - if (ret) - return ret; - - /* set reg VCM_CODE_MSB Bit[1:0] */ - vcm_code = (vcm_code & VCM_CODE_MSB_MASK) | - ((val >> 8) & ~VCM_CODE_MSB_MASK); - ret = ad5823_i2c_write(client, AD5823_REG_VCM_CODE_MSB, vcm_code); - if (ret) - return ret; - - /* set reg VCM_CODE_LSB Bit[7:0] */ - ret = ad5823_i2c_write(client, AD5823_REG_VCM_CODE_LSB, (val & 0xff)); - if (ret) - return ret; - - /* set required vcm move time */ - vcm_code = AD5823_RESONANCE_PERIOD / AD5823_RESONANCE_COEF - - AD5823_HIGH_FREQ_RANGE; - ret = ad5823_i2c_write(client, AD5823_REG_VCM_MOVE_TIME, vcm_code); - - return ret; -} - -static int ad5823_t_focus_abs(struct v4l2_subdev *sd, s32 value) -{ - value = min(value, AD5823_MAX_FOCUS_POS); - return ad5823_t_focus_vcm(sd, value); -} - -static int ov5693_t_focus_abs(struct v4l2_subdev *sd, s32 value) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret = 0; - - dev_dbg(&client->dev, "%s: FOCUS_POS: 0x%x\n", __func__, value); - value = clamp(value, 0, OV5693_VCM_MAX_FOCUS_POS); - if (dev->vcm == VCM_DW9714) { - if (dev->vcm_update) { - ret = vcm_dw_i2c_write(client, VCM_PROTECTION_OFF); - if (ret) - return ret; - ret = vcm_dw_i2c_write(client, DIRECT_VCM); - if (ret) - return ret; - ret = vcm_dw_i2c_write(client, VCM_PROTECTION_ON); - if (ret) - return ret; - dev->vcm_update = false; - } - ret = vcm_dw_i2c_write(client, - vcm_val(value, VCM_DEFAULT_S)); - } else if (dev->vcm == VCM_AD5823) { - ad5823_t_focus_abs(sd, value); - } - if (ret == 0) { - dev->number_of_steps = value - dev->focus; - dev->focus = value; - dev->timestamp_t_focus_abs = ktime_get(); - } else - dev_err(&client->dev, - "%s: i2c failed. ret %d\n", __func__, ret); - - return ret; -} - -static int ov5693_t_focus_rel(struct v4l2_subdev *sd, s32 value) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - - return ov5693_t_focus_abs(sd, dev->focus + value); -} - -#define DELAY_PER_STEP_NS 1000000 -#define DELAY_MAX_PER_STEP_NS (1000000 * 1023) -static int ov5693_q_focus_status(struct v4l2_subdev *sd, s32 *value) -{ - u32 status = 0; - struct ov5693_device *dev = to_ov5693_sensor(sd); - ktime_t temptime; - ktime_t timedelay = ns_to_ktime(min_t(u32, - abs(dev->number_of_steps) * DELAY_PER_STEP_NS, - DELAY_MAX_PER_STEP_NS)); - - temptime = ktime_sub(ktime_get(), (dev->timestamp_t_focus_abs)); - if (ktime_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; -} - -static int ov5693_q_focus_abs(struct v4l2_subdev *sd, s32 *value) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - s32 val; - - ov5693_q_focus_status(sd, &val); - - if (val & ATOMISP_FOCUS_STATUS_MOVING) - *value = dev->focus - dev->number_of_steps; - else - *value = dev->focus; - - return 0; -} - -static int ov5693_t_vcm_slew(struct v4l2_subdev *sd, s32 value) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - - dev->number_of_steps = value; - dev->vcm_update = true; - return 0; -} - -static int ov5693_t_vcm_timing(struct v4l2_subdev *sd, s32 value) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - - dev->number_of_steps = value; - dev->vcm_update = true; - return 0; -} - -static int ov5693_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct ov5693_device *dev = - container_of(ctrl->handler, struct ov5693_device, ctrl_handler); - struct i2c_client *client = v4l2_get_subdevdata(&dev->sd); - int ret = 0; - - switch (ctrl->id) { - case V4L2_CID_FOCUS_ABSOLUTE: - dev_dbg(&client->dev, "%s: CID_FOCUS_ABSOLUTE:%d.\n", - __func__, ctrl->val); - ret = ov5693_t_focus_abs(&dev->sd, ctrl->val); - break; - case V4L2_CID_FOCUS_RELATIVE: - dev_dbg(&client->dev, "%s: CID_FOCUS_RELATIVE:%d.\n", - __func__, ctrl->val); - ret = ov5693_t_focus_rel(&dev->sd, ctrl->val); - break; - case V4L2_CID_VCM_SLEW: - ret = ov5693_t_vcm_slew(&dev->sd, ctrl->val); - break; - case V4L2_CID_VCM_TIMEING: - ret = ov5693_t_vcm_timing(&dev->sd, ctrl->val); - break; - default: - ret = -EINVAL; - } - return ret; -} - -static int ov5693_g_volatile_ctrl(struct v4l2_ctrl *ctrl) -{ - struct ov5693_device *dev = - container_of(ctrl->handler, struct ov5693_device, ctrl_handler); - int ret = 0; - - switch (ctrl->id) { - case V4L2_CID_EXPOSURE_ABSOLUTE: - ret = ov5693_q_exposure(&dev->sd, &ctrl->val); - break; - case V4L2_CID_FOCAL_ABSOLUTE: - ret = ov5693_g_focal(&dev->sd, &ctrl->val); - break; - case V4L2_CID_FNUMBER_ABSOLUTE: - ret = ov5693_g_fnumber(&dev->sd, &ctrl->val); - break; - case V4L2_CID_FNUMBER_RANGE: - ret = ov5693_g_fnumber_range(&dev->sd, &ctrl->val); - break; - case V4L2_CID_FOCUS_ABSOLUTE: - ret = ov5693_q_focus_abs(&dev->sd, &ctrl->val); - break; - case V4L2_CID_FOCUS_STATUS: - ret = ov5693_q_focus_status(&dev->sd, &ctrl->val); - break; - case V4L2_CID_BIN_FACTOR_HORZ: - ret = ov5693_g_bin_factor_x(&dev->sd, &ctrl->val); - break; - case V4L2_CID_BIN_FACTOR_VERT: - ret = ov5693_g_bin_factor_y(&dev->sd, &ctrl->val); - break; - default: - ret = -EINVAL; - } - - return ret; -} - -static const struct v4l2_ctrl_ops ctrl_ops = { - .s_ctrl = ov5693_s_ctrl, - .g_volatile_ctrl = ov5693_g_volatile_ctrl -}; - -static const struct v4l2_ctrl_config ov5693_controls[] = { - { - .ops = &ctrl_ops, - .id = V4L2_CID_EXPOSURE_ABSOLUTE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "exposure", - .min = 0x0, - .max = 0xffff, - .step = 0x01, - .def = 0x00, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_FOCAL_ABSOLUTE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "focal length", - .min = OV5693_FOCAL_LENGTH_DEFAULT, - .max = OV5693_FOCAL_LENGTH_DEFAULT, - .step = 0x01, - .def = OV5693_FOCAL_LENGTH_DEFAULT, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_FNUMBER_ABSOLUTE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "f-number", - .min = OV5693_F_NUMBER_DEFAULT, - .max = OV5693_F_NUMBER_DEFAULT, - .step = 0x01, - .def = OV5693_F_NUMBER_DEFAULT, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_FNUMBER_RANGE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "f-number range", - .min = OV5693_F_NUMBER_RANGE, - .max = OV5693_F_NUMBER_RANGE, - .step = 0x01, - .def = OV5693_F_NUMBER_RANGE, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_FOCUS_ABSOLUTE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "focus move absolute", - .min = 0, - .max = OV5693_VCM_MAX_FOCUS_POS, - .step = 1, - .def = 0, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_FOCUS_RELATIVE, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "focus move relative", - .min = OV5693_VCM_MAX_FOCUS_NEG, - .max = OV5693_VCM_MAX_FOCUS_POS, - .step = 1, - .def = 0, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_FOCUS_STATUS, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "focus status", - .min = 0, - .max = 100, /* allow enum to grow in the future */ - .step = 1, - .def = 0, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_VCM_SLEW, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "vcm slew", - .min = 0, - .max = OV5693_VCM_SLEW_STEP_MAX, - .step = 1, - .def = 0, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_VCM_TIMEING, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "vcm step time", - .min = 0, - .max = OV5693_VCM_SLEW_TIME_MAX, - .step = 1, - .def = 0, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_BIN_FACTOR_HORZ, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "horizontal binning factor", - .min = 0, - .max = OV5693_BIN_FACTOR_MAX, - .step = 1, - .def = 0, - .flags = 0, - }, - { - .ops = &ctrl_ops, - .id = V4L2_CID_BIN_FACTOR_VERT, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "vertical binning factor", - .min = 0, - .max = OV5693_BIN_FACTOR_MAX, - .step = 1, - .def = 0, - .flags = 0, - }, -}; - -static int ov5693_init(struct v4l2_subdev *sd) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret; - - pr_info("%s\n", __func__); - mutex_lock(&dev->input_lock); - dev->vcm_update = false; - - if (dev->vcm == VCM_AD5823) { - ret = vcm_ad_i2c_wr8(client, 0x01, 0x01); /* vcm init test */ - if (ret) - dev_err(&client->dev, - "vcm reset failed\n"); - /*change the mode*/ - ret = ad5823_i2c_write(client, AD5823_REG_VCM_CODE_MSB, - AD5823_RING_CTRL_ENABLE); - if (ret) - dev_err(&client->dev, - "vcm enable ringing failed\n"); - ret = ad5823_i2c_write(client, AD5823_REG_MODE, - AD5823_ARC_RES1); - if (ret) - dev_err(&client->dev, - "vcm change mode failed\n"); - } - - /*change initial focus value for ad5823*/ - if (dev->vcm == VCM_AD5823) { - dev->focus = AD5823_INIT_FOCUS_POS; - ov5693_t_focus_abs(sd, AD5823_INIT_FOCUS_POS); - } else { - dev->focus = 0; - ov5693_t_focus_abs(sd, 0); - } - - mutex_unlock(&dev->input_lock); - - return 0; -} - -static int power_ctrl(struct v4l2_subdev *sd, bool flag) -{ - int ret; - struct ov5693_device *dev = to_ov5693_sensor(sd); - - if (!dev || !dev->platform_data) - return -ENODEV; - - /* - * This driver assumes "internal DVDD, PWDNB tied to DOVDD". - * In this set up only gpio0 (XSHUTDN) should be available - * but in some products (for example ECS) gpio1 (PWDNB) is - * also available. If gpio1 is available we emulate it being - * tied to DOVDD here. - */ - if (flag) { - ret = dev->platform_data->v2p8_ctrl(sd, 1); - dev->platform_data->gpio1_ctrl(sd, 1); - if (ret == 0) { - ret = dev->platform_data->v1p8_ctrl(sd, 1); - if (ret) { - dev->platform_data->gpio1_ctrl(sd, 0); - ret = dev->platform_data->v2p8_ctrl(sd, 0); - } - } - } else { - dev->platform_data->gpio1_ctrl(sd, 0); - ret = dev->platform_data->v1p8_ctrl(sd, 0); - ret |= dev->platform_data->v2p8_ctrl(sd, 0); - } - - return ret; -} - -static int gpio_ctrl(struct v4l2_subdev *sd, bool flag) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - - if (!dev || !dev->platform_data) - return -ENODEV; - - return dev->platform_data->gpio0_ctrl(sd, flag); -} - -static int __power_up(struct v4l2_subdev *sd) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret; - - if (!dev->platform_data) { - dev_err(&client->dev, - "no camera_sensor_platform_data"); - return -ENODEV; - } - - /* power control */ - ret = power_ctrl(sd, 1); - if (ret) - goto fail_power; - - /* according to DS, at least 5ms is needed between DOVDD and PWDN */ - /* add this delay time to 10~11ms*/ - usleep_range(10000, 11000); - - /* gpio ctrl */ - ret = gpio_ctrl(sd, 1); - if (ret) { - ret = gpio_ctrl(sd, 1); - if (ret) - goto fail_power; - } - - /* flis clock control */ - ret = dev->platform_data->flisclk_ctrl(sd, 1); - if (ret) - goto fail_clk; - - __cci_delay(up_delay); - - return 0; - -fail_clk: - gpio_ctrl(sd, 0); -fail_power: - power_ctrl(sd, 0); - dev_err(&client->dev, "sensor power-up failed\n"); - - return ret; -} - -static int power_down(struct v4l2_subdev *sd) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret = 0; - - dev->focus = OV5693_INVALID_CONFIG; - if (!dev->platform_data) { - dev_err(&client->dev, - "no camera_sensor_platform_data"); - return -ENODEV; - } - - ret = dev->platform_data->flisclk_ctrl(sd, 0); - if (ret) - dev_err(&client->dev, "flisclk failed\n"); - - /* gpio ctrl */ - ret = gpio_ctrl(sd, 0); - if (ret) { - ret = gpio_ctrl(sd, 0); - if (ret) - dev_err(&client->dev, "gpio failed 2\n"); - } - - /* power control */ - ret = power_ctrl(sd, 0); - if (ret) - dev_err(&client->dev, "vprog failed.\n"); - - return ret; -} - -static int power_up(struct v4l2_subdev *sd) -{ - static const int retry_count = 4; - int i, ret; - - for (i = 0; i < retry_count; i++) { - ret = __power_up(sd); - if (!ret) - return 0; - - power_down(sd); - } - return ret; -} - -static int ov5693_s_power(struct v4l2_subdev *sd, int on) -{ - int ret; - - pr_info("%s: on %d\n", __func__, on); - if (on == 0) - return power_down(sd); - else { - ret = power_up(sd); - if (!ret) { - ret = ov5693_init(sd); - /* restore settings */ - ov5693_res = ov5693_res_preview; - N_RES = N_RES_PREVIEW; - } - } - return ret; -} - -/* - * distance - calculate the distance - * @res: resolution - * @w: width - * @h: height - * - * Get the gap between res_w/res_h and w/h. - * distance = (res_w/res_h - w/h) / (w/h) * 8192 - * res->width/height smaller than w/h wouldn't be considered. - * The gap of ratio larger than 1/8 wouldn't be considered. - * Returns the value of gap or -1 if fail. - */ -#define LARGEST_ALLOWED_RATIO_MISMATCH 1024 -static int distance(struct ov5693_resolution *res, u32 w, u32 h) -{ - int ratio; - int distance; - - if (w == 0 || h == 0 || - res->width < w || res->height < h) - return -1; - - ratio = res->width << 13; - ratio /= w; - ratio *= h; - ratio /= res->height; - - distance = abs(ratio - 8192); - - if (distance > LARGEST_ALLOWED_RATIO_MISMATCH) - return -1; - - return distance; -} - -/* Return the nearest higher resolution index - * Firstly try to find the approximate aspect ratio resolution - * If we find multiple same AR resolutions, choose the - * minimal size. - */ -static int nearest_resolution_index(int w, int h) -{ - int i; - int idx = -1; - int dist; - int min_dist = INT_MAX; - int min_res_w = INT_MAX; - struct ov5693_resolution *tmp_res = NULL; - - for (i = 0; i < N_RES; i++) { - tmp_res = &ov5693_res[i]; - dist = distance(tmp_res, w, h); - if (dist == -1) - continue; - if (dist < min_dist) { - min_dist = dist; - idx = i; - min_res_w = ov5693_res[i].width; - continue; - } - if (dist == min_dist && ov5693_res[i].width < min_res_w) - idx = i; - } - - return idx; -} - -static int get_resolution_index(int w, int h) -{ - int i; - - for (i = 0; i < N_RES; i++) { - if (w != ov5693_res[i].width) - continue; - if (h != ov5693_res[i].height) - continue; - - return i; - } - - return -1; -} - -/* TODO: remove it. */ -static int startup(struct v4l2_subdev *sd) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret = 0; - - ret = ov5693_write_reg(client, OV5693_8BIT, - OV5693_SW_RESET, 0x01); - if (ret) { - dev_err(&client->dev, "ov5693 reset err.\n"); - return ret; - } - - ret = ov5693_write_reg_array(client, ov5693_global_setting); - if (ret) { - dev_err(&client->dev, "ov5693 write register err.\n"); - return ret; - } - - ret = ov5693_write_reg_array(client, ov5693_res[dev->fmt_idx].regs); - if (ret) { - dev_err(&client->dev, "ov5693 write register err.\n"); - return ret; - } - - return ret; -} - -static int ov5693_set_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *format) -{ - struct v4l2_mbus_framefmt *fmt = &format->format; - struct ov5693_device *dev = to_ov5693_sensor(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - struct camera_mipi_info *ov5693_info = NULL; - int ret = 0; - int idx; - - if (format->pad) - return -EINVAL; - if (!fmt) - return -EINVAL; - ov5693_info = v4l2_get_subdev_hostdata(sd); - if (ov5693_info == NULL) - return -EINVAL; - - mutex_lock(&dev->input_lock); - idx = nearest_resolution_index(fmt->width, fmt->height); - if (idx == -1) { - /* return the largest resolution */ - fmt->width = ov5693_res[N_RES - 1].width; - fmt->height = ov5693_res[N_RES - 1].height; - } else { - fmt->width = ov5693_res[idx].width; - fmt->height = ov5693_res[idx].height; - } - - fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10; - if (format->which == V4L2_SUBDEV_FORMAT_TRY) { - cfg->try_fmt = *fmt; - mutex_unlock(&dev->input_lock); - return 0; - } - - dev->fmt_idx = get_resolution_index(fmt->width, fmt->height); - if (dev->fmt_idx == -1) { - dev_err(&client->dev, "get resolution fail\n"); - mutex_unlock(&dev->input_lock); - return -EINVAL; - } - - ret = startup(sd); - if (ret) { - int i = 0; - - dev_err(&client->dev, "ov5693 startup err, retry to power up\n"); - for (i = 0; i < OV5693_POWER_UP_RETRY_NUM; i++) { - dev_err(&client->dev, - "ov5693 retry to power up %d/%d times, result: ", - i+1, OV5693_POWER_UP_RETRY_NUM); - power_down(sd); - ret = power_up(sd); - if (!ret) { - mutex_unlock(&dev->input_lock); - ov5693_init(sd); - mutex_lock(&dev->input_lock); - } else { - dev_err(&client->dev, "power up failed, continue\n"); - continue; - } - ret = startup(sd); - if (ret) { - dev_err(&client->dev, " startup FAILED!\n"); - } else { - dev_err(&client->dev, " startup SUCCESS!\n"); - break; - } - } - } - - /* - * After sensor settings are set to HW, sometimes stream is started. - * This would cause ISP timeout because ISP is not ready to receive - * data yet. So add stop streaming here. - */ - ret = ov5693_write_reg(client, OV5693_8BIT, OV5693_SW_STREAM, - OV5693_STOP_STREAMING); - if (ret) - dev_warn(&client->dev, "ov5693 stream off err\n"); - - ret = ov5693_get_intg_factor(client, ov5693_info, - &ov5693_res[dev->fmt_idx]); - if (ret) { - dev_err(&client->dev, "failed to get integration_factor\n"); - goto err; - } - - ov5693_info->metadata_width = fmt->width * 10 / 8; - ov5693_info->metadata_height = 1; - ov5693_info->metadata_effective_width = &ov5693_embedded_effective_size; - -err: - mutex_unlock(&dev->input_lock); - return ret; -} -static int ov5693_get_fmt(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_format *format) -{ - struct v4l2_mbus_framefmt *fmt = &format->format; - struct ov5693_device *dev = to_ov5693_sensor(sd); - - if (format->pad) - return -EINVAL; - - if (!fmt) - return -EINVAL; - - fmt->width = ov5693_res[dev->fmt_idx].width; - fmt->height = ov5693_res[dev->fmt_idx].height; - fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10; - - return 0; -} - -static int ov5693_detect(struct i2c_client *client) -{ - struct i2c_adapter *adapter = client->adapter; - u16 high, low; - int ret; - u16 id; - u8 revision; - - if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) - return -ENODEV; - - ret = ov5693_read_reg(client, OV5693_8BIT, - OV5693_SC_CMMN_CHIP_ID_H, &high); - if (ret) { - dev_err(&client->dev, "sensor_id_high = 0x%x\n", high); - return -ENODEV; - } - ret = ov5693_read_reg(client, OV5693_8BIT, - OV5693_SC_CMMN_CHIP_ID_L, &low); - id = ((((u16) high) << 8) | (u16) low); - - if (id != OV5693_ID) { - dev_err(&client->dev, "sensor ID error 0x%x\n", id); - return -ENODEV; - } - - ret = ov5693_read_reg(client, OV5693_8BIT, - OV5693_SC_CMMN_SUB_ID, &high); - revision = (u8) high & 0x0f; - - dev_dbg(&client->dev, "sensor_revision = 0x%x\n", revision); - dev_dbg(&client->dev, "detect ov5693 success\n"); - return 0; -} - -static int ov5693_s_stream(struct v4l2_subdev *sd, int enable) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret; - - mutex_lock(&dev->input_lock); - - ret = ov5693_write_reg(client, OV5693_8BIT, OV5693_SW_STREAM, - enable ? OV5693_START_STREAMING : - OV5693_STOP_STREAMING); - - mutex_unlock(&dev->input_lock); - - return ret; -} - - -static int ov5693_s_config(struct v4l2_subdev *sd, - int irq, void *platform_data) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - struct i2c_client *client = v4l2_get_subdevdata(sd); - int ret = 0; - - if (platform_data == NULL) - return -ENODEV; - - dev->platform_data = - (struct camera_sensor_platform_data *)platform_data; - - mutex_lock(&dev->input_lock); - /* power off the module, then power on it in future - * as first power on by board may not fulfill the - * power on sequqence needed by the module - */ - ret = power_down(sd); - if (ret) { - dev_err(&client->dev, "ov5693 power-off err.\n"); - goto fail_power_off; - } - - ret = power_up(sd); - if (ret) { - dev_err(&client->dev, "ov5693 power-up err.\n"); - goto fail_power_on; - } - - if (!dev->vcm) - dev->vcm = vcm_detect(client); - - ret = dev->platform_data->csi_cfg(sd, 1); - if (ret) - goto fail_csi_cfg; - - /* config & detect sensor */ - ret = ov5693_detect(client); - if (ret) { - dev_err(&client->dev, "ov5693_detect err s_config.\n"); - goto fail_csi_cfg; - } - - dev->otp_data = ov5693_otp_read(sd); - - /* turn off sensor, after probed */ - ret = power_down(sd); - if (ret) { - dev_err(&client->dev, "ov5693 power-off err.\n"); - goto fail_csi_cfg; - } - mutex_unlock(&dev->input_lock); - - return ret; - -fail_csi_cfg: - dev->platform_data->csi_cfg(sd, 0); -fail_power_on: - power_down(sd); - dev_err(&client->dev, "sensor power-gating failed\n"); -fail_power_off: - mutex_unlock(&dev->input_lock); - return ret; -} - -static int ov5693_g_frame_interval(struct v4l2_subdev *sd, - struct v4l2_subdev_frame_interval *interval) -{ - struct ov5693_device *dev = to_ov5693_sensor(sd); - - interval->interval.numerator = 1; - interval->interval.denominator = ov5693_res[dev->fmt_idx].fps; - - return 0; -} - -static int ov5693_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_mbus_code_enum *code) -{ - if (code->index >= MAX_FMTS) - return -EINVAL; - - code->code = MEDIA_BUS_FMT_SBGGR10_1X10; - return 0; -} - -static int ov5693_enum_frame_size(struct v4l2_subdev *sd, - struct v4l2_subdev_pad_config *cfg, - struct v4l2_subdev_frame_size_enum *fse) -{ - int index = fse->index; - - if (index >= N_RES) - return -EINVAL; - - fse->min_width = ov5693_res[index].width; - fse->min_height = ov5693_res[index].height; - fse->max_width = ov5693_res[index].width; - fse->max_height = ov5693_res[index].height; - - return 0; - -} - -static const struct v4l2_subdev_video_ops ov5693_video_ops = { - .s_stream = ov5693_s_stream, - .g_frame_interval = ov5693_g_frame_interval, -}; - -static const struct v4l2_subdev_core_ops ov5693_core_ops = { - .s_power = ov5693_s_power, - .ioctl = ov5693_ioctl, -}; - -static const struct v4l2_subdev_pad_ops ov5693_pad_ops = { - .enum_mbus_code = ov5693_enum_mbus_code, - .enum_frame_size = ov5693_enum_frame_size, - .get_fmt = ov5693_get_fmt, - .set_fmt = ov5693_set_fmt, -}; - -static const struct v4l2_subdev_ops ov5693_ops = { - .core = &ov5693_core_ops, - .video = &ov5693_video_ops, - .pad = &ov5693_pad_ops, -}; - -static int ov5693_remove(struct i2c_client *client) -{ - struct v4l2_subdev *sd = i2c_get_clientdata(client); - struct ov5693_device *dev = to_ov5693_sensor(sd); - - dev_dbg(&client->dev, "ov5693_remove...\n"); - - dev->platform_data->csi_cfg(sd, 0); - - v4l2_device_unregister_subdev(sd); - - atomisp_gmin_remove_subdev(sd); - - media_entity_cleanup(&dev->sd.entity); - v4l2_ctrl_handler_free(&dev->ctrl_handler); - kfree(dev); - - return 0; -} - -static int ov5693_probe(struct i2c_client *client) -{ - struct ov5693_device *dev; - int i2c; - int ret = 0; - void *pdata; - unsigned int i; - - /* - * Firmware workaround: Some modules use a "secondary default" - * address of 0x10 which doesn't appear on schematics, and - * some BIOS versions haven't gotten the memo. Work around - * via config. - */ - i2c = gmin_get_var_int(&client->dev, "I2CAddr", -1); - if (i2c != -1) { - dev_info(&client->dev, - "Overriding firmware-provided I2C address (0x%x) with 0x%x\n", - client->addr, i2c); - client->addr = i2c; - } - - dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (!dev) - return -ENOMEM; - - mutex_init(&dev->input_lock); - - dev->fmt_idx = 0; - v4l2_i2c_subdev_init(&(dev->sd), client, &ov5693_ops); - - pdata = gmin_camera_platform_data(&dev->sd, - ATOMISP_INPUT_FORMAT_RAW_10, - atomisp_bayer_order_bggr); - if (!pdata) - goto out_free; - - ret = ov5693_s_config(&dev->sd, client->irq, pdata); - if (ret) - goto out_free; - - ret = atomisp_register_i2c_module(&dev->sd, pdata, RAW_CAMERA); - if (ret) - goto out_free; - - dev->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - dev->pad.flags = MEDIA_PAD_FL_SOURCE; - dev->format.code = MEDIA_BUS_FMT_SBGGR10_1X10; - dev->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; - ret = - v4l2_ctrl_handler_init(&dev->ctrl_handler, - ARRAY_SIZE(ov5693_controls)); - if (ret) { - ov5693_remove(client); - return ret; - } - - for (i = 0; i < ARRAY_SIZE(ov5693_controls); i++) - v4l2_ctrl_new_custom(&dev->ctrl_handler, &ov5693_controls[i], - NULL); - - if (dev->ctrl_handler.error) { - ov5693_remove(client); - return dev->ctrl_handler.error; - } - - /* Use same lock for controls as for everything else. */ - dev->ctrl_handler.lock = &dev->input_lock; - dev->sd.ctrl_handler = &dev->ctrl_handler; - - ret = media_entity_pads_init(&dev->sd.entity, 1, &dev->pad); - if (ret) - ov5693_remove(client); - - return ret; -out_free: - v4l2_device_unregister_subdev(&dev->sd); - kfree(dev); - return ret; -} - -static const struct acpi_device_id ov5693_acpi_match[] = { - {"INT33BE"}, - {}, -}; -MODULE_DEVICE_TABLE(acpi, ov5693_acpi_match); - -static struct i2c_driver ov5693_driver = { - .driver = { - .name = "ov5693", - .acpi_match_table = ov5693_acpi_match, - }, - .probe_new = ov5693_probe, - .remove = ov5693_remove, -}; -module_i2c_driver(ov5693_driver); - -MODULE_DESCRIPTION("A low-level driver for OmniVision 5693 sensors"); -MODULE_LICENSE("GPL"); |