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ASoC: qcom: q6asm: add q6asm_get_hw_pointer

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Currently q6asm-dai is performing an extra layer of calculation on the hw_ptr,
which is always prone to errors and redundant.

q6asm already has tokens to indentify the pointer pointers which an be
used to get the hw_ptr and this is more accurate then doing the
artificial calculation at upper layers.

Add helper function q6asm_get_hw_pointer() to get this hw_ptr.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Tested-by: Alexey Klimov <alexey.klimov@linaro.org> # RB5, RB3
Link: https://patch.msgid.link/20251023102444.88158-8-srinivas.kandagatla@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Srinivas Kandagatla
2025-10-23 11:24:31 +01:00
committed by Mark Brown
parent e386c2cf3d
commit b6a1d7243e
2 changed files with 13 additions and 0 deletions
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12
sound/soc/qcom/qdsp6/q6asm.c
View File

@@ -6,6 +6,7 @@
#include <linux/mutex.h>
#include <linux/wait.h>
#include <linux/module.h>
#include <linux/atomic.h>
#include <linux/soc/qcom/apr.h>
#include <linux/device.h>
#include <linux/of_platform.h>
@@ -248,6 +249,7 @@ struct audio_port_data {
uint32_t num_periods;
uint32_t dsp_buf;
uint32_t mem_map_handle;
atomic_t hw_ptr;
};
struct q6asm {
@@ -598,6 +600,14 @@ err:
return ac;
}
int q6asm_get_hw_pointer(struct audio_client *ac, unsigned int dir)
{
struct audio_port_data *data = &ac->port[dir];
return (int)atomic_read(&data->hw_ptr);
}
EXPORT_SYMBOL_GPL(q6asm_get_hw_pointer);
static int32_t q6asm_stream_callback(struct apr_device *adev,
struct apr_resp_pkt *data,
int session_id)
@@ -703,6 +713,7 @@ static int32_t q6asm_stream_callback(struct apr_device *adev,
goto done;
}
spin_unlock_irqrestore(&ac->lock, flags);
atomic_set(&port->hw_ptr, token + 1);
}
break;
case ASM_DATA_EVENT_READ_DONE_V2:
@@ -721,6 +732,7 @@ static int32_t q6asm_stream_callback(struct apr_device *adev,
}
phys = port->buf[hdr->token].phys;
atomic_set(&port->hw_ptr, hdr->token + 1);
if (upper_32_bits(phys) != done->buf_addr_msw ||
lower_32_bits(phys) != done->buf_addr_lsw) {

1
sound/soc/qcom/qdsp6/q6asm.h
View File

@@ -148,4 +148,5 @@ int q6asm_map_memory_regions(unsigned int dir,
phys_addr_t phys,
size_t period_sz, unsigned int periods);
int q6asm_unmap_memory_regions(unsigned int dir, struct audio_client *ac);
int q6asm_get_hw_pointer(struct audio_client *ac, unsigned int dir);
#endif /* __Q6_ASM_H__ */