-static size_t convert_sample_data_8(struct dev_context *devc,
- uint8_t *dest, size_t destcnt,
- const uint8_t *src, size_t srccnt)
-{
- uint8_t *channel_data;
- int i, cur_channel;
- size_t ret = 0;
- uint16_t sample;
- uint8_t channel_mask;
-
- srccnt /= 2;
-
- channel_data = (uint8_t *)devc->channel_data;
- cur_channel = devc->cur_channel;
-
- while (srccnt--) {
- sample = src[0] | (src[1] << 8);
- src += 2;
-
- channel_mask = devc->channel_masks[cur_channel];
-
- for (i = 15; i >= 0; --i, sample >>= 1)
- if (sample & 1)
- channel_data[i] |= channel_mask;
-
- if (++cur_channel == devc->num_channels) {
- cur_channel = 0;
- if (destcnt < 16) {
- sr_err("Conversion buffer too small!");
- break;
- }
- memcpy(dest, channel_data, 16);
- memset(channel_data, 0, 16);
- dest += 16;
- ret += 16;
- destcnt -= 16;
- }
- }
-
- devc->cur_channel = cur_channel;
-
- return ret;
-}
-
-static size_t convert_sample_data(struct dev_context *devc,
- uint8_t *dest, size_t destcnt,
- const uint8_t *src, size_t srccnt,
- int unitsize)
-{
- return (unitsize == 2 ?
- convert_sample_data_16(devc, dest, destcnt, src, srccnt) :
- convert_sample_data_8(devc, dest, destcnt, src, srccnt));
-}
-