On 5/1/2018 5:08 AM, Srinivas Kandagatla wrote:
This patch adds support to memory map and unmap regions commands in
q6asm module.
Signed-off-by: Srinivas Kandagatla <[email protected]>
Reviewed-and-tested-by: Rohit kumar <[email protected]>
---
sound/soc/qcom/qdsp6/q6asm.c | 349 +++++++++++++++++++++++++++++++++++++++++++
sound/soc/qcom/qdsp6/q6asm.h | 5 +
2 files changed, 354 insertions(+)
diff --git a/sound/soc/qcom/qdsp6/q6asm.c b/sound/soc/qcom/qdsp6/q6asm.c
index c9526d2e59d2..5a573e927a5e 100644
--- a/sound/soc/qcom/qdsp6/q6asm.c
+++ b/sound/soc/qcom/qdsp6/q6asm.c
@@ -18,10 +18,45 @@
#include "q6dsp-errno.h"
#include "q6dsp-common.h"
<snip>
+
+/**
+ * q6asm_map_memory_regions() - map memory regions in the dsp.
+ *
+ * @dir: direction of audio stream
+ * @ac: audio client instanace
+ * @phys: physcial address that needs mapping.
+ * @period_sz: audio period size
+ * @periods: number of periods
+ *
+ * Return: Will be an negative value on failure or zero on success
+ */
+int q6asm_map_memory_regions(unsigned int dir, struct audio_client *ac,
+ phys_addr_t phys,
+ size_t period_sz, unsigned int periods)
+{
+ struct audio_buffer *buf;
+ unsigned long flags;
+ int cnt;
+ int rc;
+
+ spin_lock_irqsave(&ac->buf_lock, flags);
+ if (ac->port[dir].buf) {
+ dev_err(ac->dev, "Buffer already allocated\n");
+ spin_unlock_irqrestore(&ac->buf_lock, flags);
+ return 0;
+ }
+
+ buf = kzalloc(((sizeof(struct audio_buffer)) * periods), GFP_ATOMIC);
+ if (!buf) {
+ spin_unlock_irqrestore(&ac->buf_lock, flags);
+ return -ENOMEM;
+ }
+
+
Remove extra blank line.
Otherwise LGTM.
Acked-by: Banajit Goswami <[email protected]>
--
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