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Commit 81949eff authored by Yan He's avatar Yan He
Browse files

msm: sps: add the support to halt a pipe 



Add the support for BAM client to halt a pipe of their BAM.

Change-Id: Iac323bb571609fa0277fa3bf3a859d97a782d47f
Signed-off-by: default avatarYan He <yanhe@codeaurora.org>
parent e589fedd

drivers/platform/msm/sps/bam.c

+9 −0
Original line number Diff line number Diff line
@@ -1462,6 +1462,15 @@ u32 bam_pipe_timer_get_count(void *base, u32 pipe) 
	return bam_read_reg(base, P_TIMER, pipe);

}



/* halt and un-halt a pipe */

void bam_pipe_halt(void *base, u32 pipe, bool halt)

{

	if (halt)

		bam_write_reg_field(base, P_HALT, pipe, P_HALT_P_HALT, 1);

	else

		bam_write_reg_field(base, P_HALT, pipe, P_HALT_P_HALT, 0);

}



/* output the content of BAM-level registers */

void print_bam_reg(void *virt_addr)

{

drivers/platform/msm/sps/sps.c

+6 −6
Original line number Diff line number Diff line
@@ -1478,7 +1478,7 @@ int sps_flow_on(struct sps_pipe *h) 
{

	struct sps_pipe *pipe = h;

	struct sps_bam *bam;

	int result;

	int result = 0;



	SPS_DBG2("sps:%s.", __func__);
@@ -1491,8 +1491,8 @@ int sps_flow_on(struct sps_pipe *h) 
	if (bam == NULL)

		return SPS_ERROR;



	/* Enable the pipe data flow */

	result = sps_rm_state_change(pipe, SPS_STATE_ENABLE);

	bam_pipe_halt(bam->base, pipe->pipe_index, false);



	sps_bam_unlock(bam);



	return result;
@@ -1507,7 +1507,7 @@ int sps_flow_off(struct sps_pipe *h, enum sps_flow_off mode) 
{

	struct sps_pipe *pipe = h;

	struct sps_bam *bam;

	int result;

	int result = 0;



	SPS_DBG2("sps:%s.", __func__);
@@ -1520,8 +1520,8 @@ int sps_flow_off(struct sps_pipe *h, enum sps_flow_off mode) 
	if (bam == NULL)

		return SPS_ERROR;



	/* Disable the pipe data flow */

	result = sps_rm_state_change(pipe, SPS_STATE_DISABLE);

	bam_pipe_halt(bam->base, pipe->pipe_index, true);



	sps_bam_unlock(bam);



	return result;

drivers/platform/msm/sps/spsi.h

+3 −0
Original line number Diff line number Diff line
@@ -226,6 +226,9 @@ void print_bam_pipe_desc_fifo(void *, u32, u32); 
/* output BAM_TEST_BUS_REG */

void print_bam_test_bus_reg(void *, u32);



/* halt and un-halt a pipe */

void bam_pipe_halt(void *, u32, bool);



/**

 * Translate physical to virtual address

 *