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authorKrzysztof Helt <krzysztof.h1@wp.pl>2006-08-21 19:28:16 +0200
committerJaroslav Kysela <perex@suse.cz>2006-09-23 10:42:19 +0200
commit470f1f1a1c2597fab98339ab0966dbf602d604f0 (patch)
tree71c4f21207c373cfa1e99df79728f00ddba7a720 /sound/sparc/dbri.c
parentc27354460b1e0cbcd9dfc9232a76bd56c46dce89 (diff)
downloadlinux-linaro-470f1f1a1c2597fab98339ab0966dbf602d604f0.tar.gz
[ALSA] sparc dbri: more driver cleanup
A general clean up and redudant code removal. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/sparc/dbri.c')
-rw-r--r--sound/sparc/dbri.c45
1 files changed, 16 insertions, 29 deletions
diff --git a/sound/sparc/dbri.c b/sound/sparc/dbri.c
index 0b8545ad3e9..6fc37c9cb4f 100644
--- a/sound/sparc/dbri.c
+++ b/sound/sparc/dbri.c
@@ -241,9 +241,7 @@ static struct {
#define DBRI_INT_BLK 64
#define DBRI_NO_DESCS 64
#define DBRI_NO_PIPES 32
-
-#define DBRI_MM_ONB 1
-#define DBRI_MM_SB 2
+#define DBRI_MAX_PIPE (DBRI_NO_PIPES - 1)
#define DBRI_REC 0
#define DBRI_PLAY 1
@@ -650,10 +648,6 @@ static volatile s32 *dbri_cmdlock(struct snd_dbri * dbri, enum dbri_lock get)
/* Delay if previous commands are still being processed */
while ((--maxloops) > 0 && (dbri->wait_send != dbri->wait_ackd)) {
msleep_interruptible(1);
- /* If dbri_cmdlock() got called from inside the
- * interrupt handler, this will do the processing.
- */
- dbri_process_interrupt_buffer(dbri);
}
if (maxloops == 0) {
printk(KERN_ERR "DBRI: Chip never completed command buffer %d\n",
@@ -780,7 +774,7 @@ static void reset_pipe(struct snd_dbri * dbri, int pipe)
int desc;
volatile int *cmd;
- if (pipe < 0 || pipe > 31) {
+ if (pipe < 0 || pipe > DBRI_MAX_PIPE) {
printk(KERN_ERR "DBRI: reset_pipe called with illegal pipe number\n");
return;
}
@@ -806,10 +800,9 @@ static void reset_pipe(struct snd_dbri * dbri, int pipe)
dbri->pipes[pipe].first_desc = -1;
}
-/* FIXME: direction as an argument? */
static void setup_pipe(struct snd_dbri * dbri, int pipe, int sdp)
{
- if (pipe < 0 || pipe > 31) {
+ if (pipe < 0 || pipe > DBRI_MAX_PIPE) {
printk(KERN_ERR "DBRI: setup_pipe called with illegal pipe number\n");
return;
}
@@ -843,7 +836,7 @@ static void link_time_slot(struct snd_dbri * dbri, int pipe,
int prevpipe;
int nextpipe;
- if (pipe < 0 || pipe > 31 || basepipe < 0 || basepipe > 31) {
+ if (pipe < 0 || pipe > DBRI_MAX_PIPE || basepipe < 0 || basepipe > DBRI_MAX_PIPE) {
printk(KERN_ERR
"DBRI: link_time_slot called with illegal pipe number\n");
return;
@@ -931,7 +924,8 @@ static void unlink_time_slot(struct snd_dbri * dbri, int pipe,
volatile s32 *cmd;
int val;
- if (pipe < 0 || pipe > 31 || prevpipe < 0 || prevpipe > 31) {
+ if (pipe < 0 || pipe > DBRI_MAX_PIPE
+ || prevpipe < 0 || prevpipe > DBRI_MAX_PIPE) {
printk(KERN_ERR
"DBRI: unlink_time_slot called with illegal pipe number\n");
return;
@@ -972,7 +966,7 @@ static void xmit_fixed(struct snd_dbri * dbri, int pipe, unsigned int data)
{
volatile s32 *cmd;
- if (pipe < 16 || pipe > 31) {
+ if (pipe < 16 || pipe > DBRI_MAX_PIPE) {
printk(KERN_ERR "DBRI: xmit_fixed: Illegal pipe number\n");
return;
}
@@ -1007,7 +1001,7 @@ static void xmit_fixed(struct snd_dbri * dbri, int pipe, unsigned int data)
static void recv_fixed(struct snd_dbri * dbri, int pipe, volatile __u32 * ptr)
{
- if (pipe < 16 || pipe > 31) {
+ if (pipe < 16 || pipe > DBRI_MAX_PIPE) {
printk(KERN_ERR "DBRI: recv_fixed called with illegal pipe number\n");
return;
}
@@ -1182,20 +1176,14 @@ static void reset_chi(struct snd_dbri * dbri, enum master_or_slave master_or_sla
/* Set CHI Anchor: Pipe 16 */
- val = D_DTS_VI | D_DTS_INS | D_DTS_PRVIN(16) | D_PIPE(16);
+ val = D_DTS_VO | D_DTS_VI | D_DTS_INS
+ | D_DTS_PRVIN(16) | D_PIPE(16) | D_DTS_PRVOUT(16);
*(cmd++) = DBRI_CMD(D_DTS, 0, val);
*(cmd++) = D_TS_ANCHOR | D_TS_NEXT(16);
- *(cmd++) = 0;
-
- val = D_DTS_VO | D_DTS_INS | D_DTS_PRVOUT(16) | D_PIPE(16);
- *(cmd++) = DBRI_CMD(D_DTS, 0, val);
- *(cmd++) = 0;
*(cmd++) = D_TS_ANCHOR | D_TS_NEXT(16);
dbri->pipes[16].sdp = 1;
dbri->pipes[16].nextpipe = 16;
- dbri->chi_in_pipe = 16;
- dbri->chi_out_pipe = 16;
#if 0
chi_initialized++;
@@ -1214,11 +1202,10 @@ static void reset_chi(struct snd_dbri * dbri, enum master_or_slave master_or_sla
16, dbri->pipes[pipe].nextpipe);
}
- dbri->chi_in_pipe = 16;
- dbri->chi_out_pipe = 16;
-
cmd = dbri_cmdlock(dbri, GetLock);
}
+ dbri->chi_in_pipe = 16;
+ dbri->chi_out_pipe = 16;
if (master_or_slave == CHIslave) {
/* Setup DBRI for CHI Slave - receive clock, frame sync (FS)
@@ -1341,8 +1328,8 @@ static void cs4215_setdata(struct snd_dbri * dbri, int muted)
} else {
/* Start by setting the playback attenuation. */
struct dbri_streaminfo *info = &dbri->stream_info[DBRI_PLAY];
- int left_gain = info->left_gain % 64;
- int right_gain = info->right_gain % 64;
+ int left_gain = info->left_gain & 0x3f;
+ int right_gain = info->right_gain & 0x3f;
dbri->mm.data[0] &= ~0x3f; /* Reset the volume bits */
dbri->mm.data[1] &= ~0x3f;
@@ -1351,8 +1338,8 @@ static void cs4215_setdata(struct snd_dbri * dbri, int muted)
/* Now set the recording gain. */
info = &dbri->stream_info[DBRI_REC];
- left_gain = info->left_gain % 16;
- right_gain = info->right_gain % 16;
+ left_gain = info->left_gain & 0xf;
+ right_gain = info->right_gain & 0xf;
dbri->mm.data[2] |= CS4215_LG(left_gain);
dbri->mm.data[3] |= CS4215_RG(right_gain);
}