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Commit 4e7479f1 authored by Yan He's avatar Yan He Committed by Gerrit - the friendly Code Review server
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msm: sps: add the callback for BAM-level polling 



Add the support to notify BAM client driver to poll all relevant
pipes of that BAM.

Change-Id: I4e52bc6d8f4ea6fe1fa49ecc4f78e6cee04f0774
Signed-off-by: default avatarYan He <yanhe@codeaurora.org>
parent c57b8e5f

drivers/platform/msm/sps/sps.c

+3 −2
Original line number Diff line number Diff line
@@ -2500,6 +2500,7 @@ EXPORT_SYMBOL(sps_pipe_pending_desc); 
int sps_bam_process_irq(unsigned long dev)

{

	struct sps_bam *bam;

	int ret = 0;



	if (!dev) {

		SPS_ERR(sps, "sps:%s:BAM handle is NULL.\n", __func__);
@@ -2514,9 +2515,9 @@ int sps_bam_process_irq(unsigned long dev) 


	SPS_DBG1(bam, "sps:%s; BAM: %pa.\n", __func__, BAM_ID(bam));



	sps_bam_check_irq(bam);

	ret = sps_bam_check_irq(bam);



	return 0;

	return ret;

}

EXPORT_SYMBOL(sps_bam_process_irq);

drivers/platform/msm/sps/sps_bam.c

+14 −1
Original line number Diff line number Diff line
@@ -143,6 +143,16 @@ polling: 
		SPS_DBG1(dev, "sps:bam=%pa;source=0x%x;mask=0x%x.\n",

				BAM_ID(dev), source, mask);



		if ((source == 0) &&

			(dev->props.options & SPS_BAM_RES_CONFIRM)) {

			SPS_DBG2(dev,

				"sps: BAM %pa has no source (source = 0x%x).\n",

				BAM_ID(dev), source);



			spin_unlock_irqrestore(&dev->isr_lock, flags);

			return SPS_ERROR;

		}



		if ((source & (1UL << 31)) && (dev->props.callback)) {

			SPS_DBG1(dev, "sps:bam=%pa;callback for case %d.\n",

				BAM_ID(dev), cb_case);
@@ -231,7 +241,10 @@ static irqreturn_t bam_isr(int irq, void *ctxt) 
				SPS_DBG1(dev,

					"sps:bam_isr: handle IRQ for bam:%pa IRQ #:%d.\n",

					BAM_ID(dev), irq);

				sps_bam_check_irq(dev);

				if (sps_bam_check_irq(dev))

					SPS_DBG2(dev,

						"sps:bam_isr: callback bam:%pa IRQ #:%d to poll the pipes.\n",

						BAM_ID(dev), irq);

				dev->props.callback(SPS_CALLBACK_BAM_RES_REL,

							&ready);

			} else {

include/linux/msm-sps.h

+1 −0
Original line number Diff line number Diff line
@@ -303,6 +303,7 @@ enum sps_callback_case { 
	SPS_CALLBACK_BAM_TIMER_IRQ,	    /* Inactivity timer */

	SPS_CALLBACK_BAM_RES_REQ,	    /* Request resource */

	SPS_CALLBACK_BAM_RES_REL,	    /* Release resource */

	SPS_CALLBACK_BAM_POLL,	            /* To poll each pipe */

};



/*