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Commit c2735446 authored by Krzysztof Helt's avatar Krzysztof Helt Committed by Jaroslav Kysela
Browse files

[ALSA] sparc dbri: removal of dri_desc struct 



The structure is in big part redudant.

Signed-off-by: default avatarKrzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@suse.cz>
parent e96224ae

sound/sparc/dbri.c

+17 −23
Original line number Diff line number Diff line
@@ -250,6 +250,7 @@ static struct { 
#define DBRI_NO_STREAMS	2



/* One transmit/receive descriptor */

/* When ba != 0 descriptor is used */

struct dbri_mem {

	volatile __u32 word1;

	__u32 ba;	/* Transmit/Receive Buffer Address */
@@ -282,12 +283,6 @@ struct dbri_pipe { 
	volatile __u32 *recv_fixed_ptr;	/* Ptr to receive fixed data */

};



struct dbri_desc {

	int inuse;		/* Boolean flag */

	int next;		/* Index of next desc, or -1 */

	unsigned int len;

};



/* Per stream (playback or record) information */

struct dbri_streaminfo {

	struct snd_pcm_substream *substream;
@@ -317,7 +312,7 @@ struct snd_dbri { 
	int wait_ackd;		/* sequence of command buffers acknowledged */



	struct dbri_pipe pipes[DBRI_NO_PIPES];	/* DBRI's 32 data pipes */

	struct dbri_desc descs[DBRI_NO_DESCS];

	int next_desc[DBRI_NO_DESCS];		/* Index of next desc, or -1 */



	int chi_in_pipe;

	int chi_out_pipe;
@@ -803,8 +798,8 @@ static void reset_pipe(struct snd_dbri * dbri, int pipe) 


	desc = dbri->pipes[pipe].first_desc;

	while (desc != -1) {

		dbri->descs[desc].inuse = 0;

		desc = dbri->descs[desc].next;

		dbri->dma->desc[desc].nda = dbri->dma->desc[desc].ba = 0;

		desc = dbri->next_desc[desc];

	}



	dbri->pipes[pipe].desc = -1;
@@ -1093,7 +1088,7 @@ static int setup_descs(struct snd_dbri * dbri, int streamno, unsigned int period 
		int mylen;



		for (; desc < DBRI_NO_DESCS; desc++) {

			if (!dbri->descs[desc].inuse)

			if (!dbri->dma->desc[desc].ba)

				break;

		}

		if (desc == DBRI_NO_DESCS) {
@@ -1110,19 +1105,16 @@ static int setup_descs(struct snd_dbri * dbri, int streamno, unsigned int period 
			mylen = period;

		}



		dbri->descs[desc].inuse = 1;

		dbri->descs[desc].next = -1;

		dbri->next_desc[desc] = -1;

		dbri->dma->desc[desc].ba = dvma_buffer;

		dbri->dma->desc[desc].nda = 0;



		if (streamno == DBRI_PLAY) {

			dbri->descs[desc].len = mylen;

			dbri->dma->desc[desc].word1 = DBRI_TD_CNT(mylen);

			dbri->dma->desc[desc].word4 = 0;

			if (first_desc != -1)

				dbri->dma->desc[desc].word1 |= DBRI_TD_M;

		} else {

			dbri->descs[desc].len = 0;

			dbri->dma->desc[desc].word1 = 0;

			dbri->dma->desc[desc].word4 =

			    DBRI_RD_B | DBRI_RD_BCNT(mylen);
@@ -1131,7 +1123,7 @@ static int setup_descs(struct snd_dbri * dbri, int streamno, unsigned int period 
		if (first_desc == -1) {

			first_desc = desc;

		} else {

			dbri->descs[last_desc].next = desc;

			dbri->next_desc[last_desc] = desc;

			dbri->dma->desc[last_desc].nda =

			    dbri->dma_dvma + dbri_dma_off(desc, desc);

		}
@@ -1154,7 +1146,7 @@ static int setup_descs(struct snd_dbri * dbri, int streamno, unsigned int period 
	dbri->pipes[info->pipe].first_desc = first_desc;

	dbri->pipes[info->pipe].desc = first_desc;



	for (desc = first_desc; desc != -1; desc = dbri->descs[desc].next) {

	for (desc = first_desc; desc != -1; desc = dbri->next_desc[desc]) {

		dprintk(D_DESC, "DESC %d: %08x %08x %08x %08x\n",

			desc,

			dbri->dma->desc[desc].word1,
@@ -1747,6 +1739,7 @@ static void transmission_complete_intr(struct snd_dbri * dbri, int pipe) 
	struct dbri_streaminfo *info;

	int td;

	int status;

	int len;



	info = &dbri->stream_info[DBRI_PLAY];
@@ -1765,11 +1758,12 @@ static void transmission_complete_intr(struct snd_dbri * dbri, int pipe) 
		dprintk(D_INT, "TD %d, status 0x%02x\n", td, status);



		dbri->dma->desc[td].word4 = 0;	/* Reset it for next time. */

		info->offset += dbri->descs[td].len;

		info->left -= dbri->descs[td].len;

		len = DBRI_RD_CNT(dbri->dma->desc[td].word1);

		info->offset += len;

		info->left -= len;



		/* On the last TD, transmit them all again. */

		if (dbri->descs[td].next == -1) {

		if (dbri->next_desc[td] == -1) {

			if (info->left > 0) {

				printk(KERN_WARNING

				       "%d bytes left after last transfer.\n",
@@ -1779,7 +1773,7 @@ static void transmission_complete_intr(struct snd_dbri * dbri, int pipe) 
			tasklet_schedule(&xmit_descs_task);

		}



		td = dbri->descs[td].next;

		td = dbri->next_desc[td];

		dbri->pipes[pipe].desc = td;

	}
@@ -1803,8 +1797,8 @@ static void reception_complete_intr(struct snd_dbri * dbri, int pipe) 
		return;

	}



	dbri->descs[rd].inuse = 0;

	dbri->pipes[pipe].desc = dbri->descs[rd].next;

	dbri->dma->desc[rd].ba = 0;

	dbri->pipes[pipe].desc = dbri->next_desc[rd];

	status = dbri->dma->desc[rd].word1;

	dbri->dma->desc[rd].word1 = 0;	/* Reset it for next time. */
@@ -1818,7 +1812,7 @@ static void reception_complete_intr(struct snd_dbri * dbri, int pipe) 
		rd, DBRI_RD_STATUS(status), DBRI_RD_CNT(status));



	/* On the last TD, transmit them all again. */

	if (dbri->descs[rd].next == -1) {

	if (dbri->next_desc[rd] == -1) {

		if (info->left > info->size) {

			printk(KERN_WARNING

			       "%d bytes recorded in %d size buffer.\n",