diff options
author | Mark Brown <broonie@kernel.org> | 2017-04-30 22:15:41 +0900 |
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committer | Mark Brown <broonie@kernel.org> | 2017-04-30 22:15:41 +0900 |
commit | 0c2964cb38ef9dc44c11db7516bab00c1967e52e (patch) | |
tree | 242e884d5858f9d9f727c01455068f38293b6252 /sound/soc/intel/skylake/skl-sst-cldma.c | |
parent | d872f04606eec35de3bc4e409e186d01dacdd3d6 (diff) | |
parent | 081dc8ab46df85382658822e951ea79be87382b0 (diff) |
Merge remote-tracking branch 'asoc/topic/intel' into asoc-next
Diffstat (limited to 'sound/soc/intel/skylake/skl-sst-cldma.c')
-rw-r--r-- | sound/soc/intel/skylake/skl-sst-cldma.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/sound/soc/intel/skylake/skl-sst-cldma.c b/sound/soc/intel/skylake/skl-sst-cldma.c index c9f6d87381db..d2b1d60fec02 100644 --- a/sound/soc/intel/skylake/skl-sst-cldma.c +++ b/sound/soc/intel/skylake/skl-sst-cldma.c @@ -164,7 +164,7 @@ static void skl_cldma_cleanup(struct sst_dsp *ctx) ctx->dsp_ops.free_dma_buf(ctx->dev, &ctx->cl_dev.dmab_bdl); } -static int skl_cldma_wait_interruptible(struct sst_dsp *ctx) +int skl_cldma_wait_interruptible(struct sst_dsp *ctx) { int ret = 0; @@ -243,9 +243,14 @@ static void skl_cldma_fill_buffer(struct sst_dsp *ctx, unsigned int size, * 2. Polling on fw register to identify if data left to transferred doesn't * fill the ring buffer. Caller takes care of polling the required status * register to identify the transfer status. + * 3. if wait flag is set, waits for DBL interrupt to copy the next chunk till + * bytes_left is 0. + * if wait flag is not set, doesn't wait for BDL interrupt. after ccopying + * the first chunk return the no of bytes_left to be copied. */ static int -skl_cldma_copy_to_buf(struct sst_dsp *ctx, const void *bin, u32 total_size) +skl_cldma_copy_to_buf(struct sst_dsp *ctx, const void *bin, + u32 total_size, bool wait) { int ret = 0; bool start = true; @@ -272,13 +277,14 @@ skl_cldma_copy_to_buf(struct sst_dsp *ctx, const void *bin, u32 total_size) size = ctx->cl_dev.bufsize; skl_cldma_fill_buffer(ctx, size, curr_pos, true, start); - start = false; - ret = skl_cldma_wait_interruptible(ctx); - if (ret < 0) { - skl_cldma_stop(ctx); - return ret; + if (wait) { + start = false; + ret = skl_cldma_wait_interruptible(ctx); + if (ret < 0) { + skl_cldma_stop(ctx); + return ret; + } } - } else { skl_cldma_int_disable(ctx); @@ -298,9 +304,11 @@ skl_cldma_copy_to_buf(struct sst_dsp *ctx, const void *bin, u32 total_size) } bytes_left -= size; curr_pos = curr_pos + size; + if (!wait) + return bytes_left; } - return ret; + return bytes_left; } void skl_cldma_process_intr(struct sst_dsp *ctx) |