/**
* m5mols_get_version - retrieve full revisions information of M-5MOLS
*
* The version information includes revisions of hardware and firmware,
* AutoFocus alghorithm version and the version string.
*/
static int m5mols_get_version(struct v4l2_subdev *sd)
{
struct m5mols_info *info = to_m5mols(sd);
struct m5mols_version *ver = &info->ver;
u8 *str = ver->str;
int i;
int ret;
ret = m5mols_read_u8(sd, SYSTEM_VER_CUSTOMER, &ver->customer);
if (!ret)
ret = m5mols_read_u8(sd, SYSTEM_VER_PROJECT, &ver->project);
if (!ret)
ret = m5mols_read_u16(sd, SYSTEM_VER_FIRMWARE, &ver->fw);
if (!ret)
ret = m5mols_read_u16(sd, SYSTEM_VER_HARDWARE, &ver->hw);
if (!ret)
ret = m5mols_read_u16(sd, SYSTEM_VER_PARAMETER, &ver->param);
if (!ret)
ret = m5mols_read_u16(sd, SYSTEM_VER_AWB, &ver->awb);
if (!ret)
ret = m5mols_read_u8(sd, AF_VERSION, &ver->af);
if (ret)
return ret;
for (i = 0; i < VERSION_STRING_SIZE; i++) {
ret = m5mols_read_u8(sd, SYSTEM_VER_STRING, &str[i]);
if (ret)
return ret;
}
ver->fw = be16_to_cpu(ver->fw);
ver->hw = be16_to_cpu(ver->hw);
ver->param = be16_to_cpu(ver->param);
ver->awb = be16_to_cpu(ver->awb);
v4l2_info(sd, "Manufacturer\t[%s]\n",
is_manufacturer(info, REG_SAMSUNG_ELECTRO) ?
"Samsung Electro-Machanics" :
is_manufacturer(info, REG_SAMSUNG_OPTICS) ?
"Samsung Fiber-Optics" :
is_manufacturer(info, REG_SAMSUNG_TECHWIN) ?
"Samsung Techwin" : "None");
v4l2_info(sd, "Customer/Project\t[0x%02x/0x%02x]\n",
info->ver.customer, info->ver.project);
if (!is_available_af(info))
v4l2_info(sd, "No support Auto Focus on this firmware\n");
return ret;
}
/**
* m5mols_capture_info - Gather captured image information
*
* For now it gathers only EXIF information and file size.
*/
static int m5mols_capture_info(struct m5mols_info *info)
{
struct m5mols_exif *exif = &info->cap.exif;
struct v4l2_subdev *sd = &info->sd;
int ret;
ret = m5mols_read_rational(sd, EXIF_INFO_EXPTIME_NU,
EXIF_INFO_EXPTIME_DE, &exif->exposure_time);
if (ret)
return ret;
ret = m5mols_read_rational(sd, EXIF_INFO_TV_NU, EXIF_INFO_TV_DE,
&exif->shutter_speed);
if (ret)
return ret;
ret = m5mols_read_rational(sd, EXIF_INFO_AV_NU, EXIF_INFO_AV_DE,
&exif->aperture);
if (ret)
return ret;
ret = m5mols_read_rational(sd, EXIF_INFO_BV_NU, EXIF_INFO_BV_DE,
&exif->brightness);
if (ret)
return ret;
ret = m5mols_read_rational(sd, EXIF_INFO_EBV_NU, EXIF_INFO_EBV_DE,
&exif->exposure_bias);
if (ret)
return ret;
ret = m5mols_read_u16(sd, EXIF_INFO_ISO, &exif->iso_speed);
if (!ret)
ret = m5mols_read_u16(sd, EXIF_INFO_FLASH, &exif->flash);
if (!ret)
ret = m5mols_read_u16(sd, EXIF_INFO_SDR, &exif->sdr);
if (!ret)
ret = m5mols_read_u16(sd, EXIF_INFO_QVAL, &exif->qval);
if (ret)
return ret;
if (!ret)
ret = m5mols_read_u32(sd, CAPC_IMAGE_SIZE, &info->cap.main);
if (!ret)
ret = m5mols_read_u32(sd, CAPC_THUMB_SIZE, &info->cap.thumb);
if (!ret)
info->cap.total = info->cap.main + info->cap.thumb;
return ret;
}
static int m5mols_init_controls(struct m5mols_info *info)
{
struct v4l2_subdev *sd = &info->sd;
u16 max_exposure;
u16 step_zoom;
int ret;
/* Determine value's range & step of controls for various FW version */
ret = m5mols_read_u16(sd, AE_MAX_GAIN_MON, &max_exposure);
if (!ret)
step_zoom = is_manufacturer(info, REG_SAMSUNG_OPTICS) ? 31 : 1;
if (ret)
return ret;
v4l2_ctrl_handler_init(&info->handle, 6);
info->autowb = v4l2_ctrl_new_std(&info->handle,
&m5mols_ctrl_ops, V4L2_CID_AUTO_WHITE_BALANCE,
0, 1, 1, 0);
info->saturation = v4l2_ctrl_new_std(&info->handle,
&m5mols_ctrl_ops, V4L2_CID_SATURATION,
1, 5, 1, 3);
info->zoom = v4l2_ctrl_new_std(&info->handle,
&m5mols_ctrl_ops, V4L2_CID_ZOOM_ABSOLUTE,
1, 70, step_zoom, 1);
info->exposure = v4l2_ctrl_new_std(&info->handle,
&m5mols_ctrl_ops, V4L2_CID_EXPOSURE,
0, max_exposure, 1, (int)max_exposure/2);
info->colorfx = v4l2_ctrl_new_std_menu(&info->handle,
&m5mols_ctrl_ops, V4L2_CID_COLORFX,
4, (1 << V4L2_COLORFX_BW), V4L2_COLORFX_NONE);
info->autoexposure = v4l2_ctrl_new_std_menu(&info->handle,
&m5mols_ctrl_ops, V4L2_CID_EXPOSURE_AUTO,
1, 0, V4L2_EXPOSURE_MANUAL);
sd->ctrl_handler = &info->handle;
if (info->handle.error) {
v4l2_err(sd, "Failed to initialize controls: %d\n", ret);
v4l2_ctrl_handler_free(&info->handle);
return info->handle.error;
}
v4l2_ctrl_cluster(2, &info->autoexposure);
return 0;
}
