Commit d96c53a1 authored by Liam Girdwood's avatar Liam Girdwood Committed by Mark Brown
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ASoC: Intel: Add generic support for DSP wake, sleep and stall 



Add generic functions to support DSP sleep, wake and stall.

Signed-off-by: default avatarLiam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 137f6d54

sound/soc/intel/sst-dsp-priv.h

+3 −0
Original line number Diff line number Diff line
@@ -36,6 +36,9 @@ struct sst_ops { 
	/* DSP core boot / reset */

	void (*boot)(struct sst_dsp *);

	void (*reset)(struct sst_dsp *);

	int (*wake)(struct sst_dsp *);

	void (*sleep)(struct sst_dsp *);

	void (*stall)(struct sst_dsp *);



	/* Shim IO */

	void (*write)(void __iomem *addr, u32 offset, u32 value);

sound/soc/intel/sst-dsp.c

+23 −0
Original line number Diff line number Diff line
@@ -245,6 +245,29 @@ int sst_dsp_boot(struct sst_dsp *sst) 
}

EXPORT_SYMBOL_GPL(sst_dsp_boot);



int sst_dsp_wake(struct sst_dsp *sst)

{

	if (sst->ops->wake)

		return sst->ops->wake(sst);



	return 0;

}

EXPORT_SYMBOL_GPL(sst_dsp_wake);



void sst_dsp_sleep(struct sst_dsp *sst)

{

	if (sst->ops->sleep)

		sst->ops->sleep(sst);

}

EXPORT_SYMBOL_GPL(sst_dsp_sleep);



void sst_dsp_stall(struct sst_dsp *sst)

{

	if (sst->ops->stall)

		sst->ops->stall(sst);

}

EXPORT_SYMBOL_GPL(sst_dsp_stall);



void sst_dsp_ipc_msg_tx(struct sst_dsp *dsp, u32 msg)

{

	sst_dsp_shim_write_unlocked(dsp, SST_IPCX, msg | SST_IPCX_BUSY);

sound/soc/intel/sst-dsp.h

+4 −0
Original line number Diff line number Diff line
@@ -245,6 +245,10 @@ void sst_memcpy_fromio_32(struct sst_dsp *sst, 
/* DSP reset & boot */

void sst_dsp_reset(struct sst_dsp *sst);

int sst_dsp_boot(struct sst_dsp *sst);

int sst_dsp_wake(struct sst_dsp *sst);

void sst_dsp_sleep(struct sst_dsp *sst);

void sst_dsp_stall(struct sst_dsp *sst);



/* DMA */

int sst_dsp_dma_get_channel(struct sst_dsp *dsp, int chan_id);

void sst_dsp_dma_put_channel(struct sst_dsp *dsp);