/* * ispstat_request_statistics - Request statistics. * @data: Pointer to return statistics data. * * Returns 0 if successful. */ int ispstat_request_statistics(struct ispstat *stat, struct ispstat_data *data) { struct ispstat_buffer *buf; if (stat->state != ISPSTAT_ENABLED) { dev_dbg(stat->isp->dev, "%s: engine not enabled.\n", stat->subdev.name); return -EINVAL; } buf = ispstat_buf_get(stat, data); if (IS_ERR(buf)) return PTR_ERR(buf); data->ts = buf->ts; data->config_counter = buf->config_counter; data->frame_number = buf->frame_number; data->buf_size = buf->buf_size; /* * Deprecated. Number of new buffers is always equal to number of * queued events without error flag. By setting it to 0, userspace * won't try to request new buffer without receiving new event. * This field must go away in future. */ data->new_bufs = 0; buf->empty = 1; ispstat_buf_release(stat); return 0; }
/* * This API allows the user to update White Balance gains, as well as * exposure time and analog gain. It is also used to request frame * statistics. */ int isp_af_request_statistics(struct isp_af_device *isp_af, struct isp_af_data *afdata) { struct device *dev = to_device(isp_af); struct ispstat_buffer *buf; if (!isp_af->config.af_config) { dev_dbg(dev, "af: statistics requested while af engine" " is not configured\n"); return -EINVAL; } if (afdata->update & REQUEST_STATISTICS) { buf = ispstat_buf_get(&isp_af->stat, (void *)afdata->af_statistics_buf, afdata->frame_number); if (IS_ERR(buf)) return PTR_ERR(buf); afdata->xtrastats.ts = buf->ts; afdata->config_counter = buf->config_counter; afdata->frame_number = buf->frame_number; ispstat_buf_release(&isp_af->stat); } afdata->curr_frame = isp_af->stat.frame_number; return 0; }
/** * isph3a_aewb_stats_available - Check for stats available of specified frame. * @aewbdata: Pointer to return AE AWB statistics data * * Returns 0 if successful, or -1 if statistics are unavailable. **/ static int isph3a_aewb_get_stats(struct isp_h3a_device *isp_h3a, struct isph3a_aewb_data *aewbdata) { unsigned long irqflags; struct ispstat_buffer *buf; buf = ispstat_buf_get(&isp_h3a->stat, (void *)aewbdata->h3a_aewb_statistics_buf, aewbdata->frame_number); if (IS_ERR(buf)) return PTR_ERR(buf); spin_lock_irqsave(isp_h3a->lock, irqflags); aewbdata->ts = buf->ts; aewbdata->config_counter = buf->config_counter; aewbdata->frame_number = buf->frame_number; spin_unlock_irqrestore(isp_h3a->lock, irqflags); ispstat_buf_release(&isp_h3a->stat); return 0; }
/** * isph3a_aewb_stats_available - Check for stats available of specified frame. * @aewbdata: Pointer to return AE AWB statistics data * * Returns 0 if successful, or -1 if statistics are unavailable. **/ static int isph3a_aewb_get_stats(struct isp_h3a_device *isp_h3a, struct isph3a_aewb_data *aewbdata) { struct ispstat_buffer *buf; buf = ispstat_buf_get(&isp_h3a->stat, (void *)aewbdata->h3a_aewb_statistics_buf, aewbdata->frame_number); if (IS_ERR(buf)) return PTR_ERR(buf); aewbdata->ts = buf->ts; aewbdata->config_counter = buf->config_counter; aewbdata->frame_number = buf->frame_number; ispstat_buf_release(&isp_h3a->stat); return 0; }