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authorCharles Keepax <ckeepax@opensource.cirrus.com>2019-02-22 10:04:17 +0000
committerMark Brown <broonie@kernel.org>2019-02-22 15:13:17 +0000
commitcc7d6ce90216d101ae16f330fe05bd38e0e64cde (patch)
treeb54a08b81d977dfb358d0c761d5f5edeef80ce90 /sound/soc
parenteb23dcd20e91fe97679257dc4d195a707b4a0d1a (diff)
downloadlinux-stericsson-cc7d6ce90216d101ae16f330fe05bd38e0e64cde.tar.gz
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/soc')
-rw-r--r--sound/soc/codecs/wm_adsp.c27
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;