diff options
| author | Charles Keepax <ckeepax@opensource.cirrus.com> | 2019-02-22 11:04:17 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-02-22 16:13:17 +0100 |
| commit | cc7d6ce90216d101ae16f330fe05bd38e0e64cde (patch) | |
| tree | b54a08b81d977dfb358d0c761d5f5edeef80ce90 /sound | |
| parent | ASoC: cs35l36: Fix an IS_ERR() vs NULL checking bug (diff) | |
| download | linux-cc7d6ce90216d101ae16f330fe05bd38e0e64cde.tar.xz linux-cc7d6ce90216d101ae16f330fe05bd38e0e64cde.zip | |
ASoC: wm_adsp: Factor out stripping padding from ADSP data
In preparation for more refactoring add a helper function to strip the
padding from ADSP data.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/wm_adsp.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c index 12ef85e85c29..bd3241aacdb6 100644 --- a/sound/soc/codecs/wm_adsp.c +++ b/sound/soc/codecs/wm_adsp.c @@ -3231,6 +3231,21 @@ static inline int wm_adsp_buffer_write(struct wm_adsp_compr_buf *buf, buf->host_buf_ptr + field_offset, data); } +static void wm_adsp_remove_padding(u32 *buf, int nwords, int data_word_size) +{ + u8 *pack_in = (u8 *)buf; + u8 *pack_out = (u8 *)buf; + int i, j; + + /* Remove the padding bytes from the data read from the DSP */ + for (i = 0; i < nwords; i++) { + for (j = 0; j < data_word_size; j++) + *pack_out++ = *pack_in++; + + pack_in += sizeof(*buf) - data_word_size; + } +} + static int wm_adsp_legacy_host_buf_addr(struct wm_adsp_compr_buf *buf) { struct wm_adsp_alg_region *alg_region; @@ -3666,11 +3681,9 @@ EXPORT_SYMBOL_GPL(wm_adsp_compr_pointer); static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target) { struct wm_adsp_compr_buf *buf = compr->buf; - u8 *pack_in = (u8 *)compr->raw_buf; - u8 *pack_out = (u8 *)compr->raw_buf; unsigned int adsp_addr; int mem_type, nwords, max_read; - int i, j, ret; + int i, ret; /* Calculate read parameters */ for (i = 0; i < wm_adsp_fw[buf->dsp->fw].caps->num_regions; ++i) @@ -3702,13 +3715,7 @@ static int wm_adsp_buffer_capture_block(struct wm_adsp_compr *compr, int target) if (ret < 0) return ret; - /* Remove the padding bytes from the data read from the DSP */ - for (i = 0; i < nwords; i++) { - for (j = 0; j < WM_ADSP_DATA_WORD_SIZE; j++) - *pack_out++ = *pack_in++; - - pack_in += sizeof(*(compr->raw_buf)) - WM_ADSP_DATA_WORD_SIZE; - } + wm_adsp_remove_padding(compr->raw_buf, nwords, WM_ADSP_DATA_WORD_SIZE); /* update read index to account for words read */ buf->read_index += nwords; |