[ALSA] sparc dbri: removal of unused struct members
Krzysztof Helt [Thu, 17 Aug 2006 14:58:45 +0000 (16:58 +0200)]
It removes unused or rarely used members of defined structures.

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>

sound/sparc/dbri.c

index 4651ff5..66b4d45 100644 (file)
@@ -34,7 +34,7 @@
  * (the second one is a monitor/tee pipe, valid only for serial input).
  *
  * The mmcodec is connected via the CHI bus and needs the data & some
- * parameters (volume, balance, output selection) timemultiplexed in 8 byte
+ * parameters (volume, output selection) timemultiplexed in 8 byte
  * chunks. It also has a control mode, which serves for audio format setting.
  *
  * Looking at the CS4215 data sheet it is easy to set up 2 or 4 codecs on
@@ -274,9 +274,7 @@ enum in_or_out { PIPEinput, PIPEoutput };
 
 struct dbri_pipe {
        u32 sdp;                /* SDP command word */
-       enum in_or_out direction;
        int nextpipe;           /* Next pipe in linked list */
-       int prevpipe;
        int cycle;              /* Offset of timeslot (bits) */
        int length;             /* Length of timeslot (bits) */
        int first_desc;         /* Index of first descriptor */
@@ -300,13 +298,11 @@ struct dbri_streaminfo {
        int pipe;               /* Data pipe used                 */
        int left_gain;          /* mixer elements                 */
        int right_gain;
-       int balance;
 };
 
 /* This structure holds the information for both chips (DBRI & CS4215) */
 struct snd_dbri {
        struct snd_card *card;  /* ALSA card */
-       struct snd_pcm *pcm;
 
        int regs_size, irq;     /* Needed for unload */
        struct sbus_dev *sdev;  /* SBUS device info */
@@ -316,7 +312,6 @@ struct snd_dbri {
        u32 dma_dvma;           /* DBRI visible DMA address */
 
        void __iomem *regs;     /* dbri HW regs */
-       int dbri_version;       /* 'e' and up is OK */
        int dbri_irqp;          /* intr queue pointer */
        int wait_send;          /* sequence of command buffers send */
        int wait_ackd;          /* sequence of command buffers acknowledged */
@@ -337,8 +332,6 @@ struct snd_dbri {
 
 #define DBRI_MAX_VOLUME                63      /* Output volume */
 #define DBRI_MAX_GAIN          15      /* Input gain */
-#define DBRI_RIGHT_BALANCE     255
-#define DBRI_MID_BALANCE       (DBRI_RIGHT_BALANCE >> 1)
 
 /* DBRI Reg0 - Status Control Register - defines. (Page 17) */
 #define D_P            (1<<15) /* Program command & queue pointer valid */
@@ -841,10 +834,6 @@ static void setup_pipe(struct snd_dbri * dbri, int pipe, int sdp)
        dbri->pipes[pipe].sdp = sdp;
        dbri->pipes[pipe].desc = -1;
        dbri->pipes[pipe].first_desc = -1;
-       if (sdp & D_SDP_TO_SER)
-               dbri->pipes[pipe].direction = PIPEoutput;
-       else
-               dbri->pipes[pipe].direction = PIPEinput;
 
        reset_pipe(dbri, pipe);
 }
@@ -1363,14 +1352,6 @@ static void cs4215_setdata(struct snd_dbri * dbri, int muted)
                int left_gain = info->left_gain % 64;
                int right_gain = info->right_gain % 64;
 
-               if (info->balance < DBRI_MID_BALANCE) {
-                       right_gain *= info->balance;
-                       right_gain /= DBRI_MID_BALANCE;
-               } else {
-                       left_gain *= DBRI_RIGHT_BALANCE - info->balance;
-                       left_gain /= DBRI_MID_BALANCE;
-               }
-
                dbri->mm.data[0] &= ~0x3f;      /* Reset the volume bits */
                dbri->mm.data[1] &= ~0x3f;
                dbri->mm.data[0] |= (DBRI_MAX_VOLUME - left_gain);
@@ -2233,7 +2214,6 @@ static int __devinit snd_dbri_pcm(struct snd_dbri * dbri)
        pcm->private_data = dbri;
        pcm->info_flags = 0;
        strcpy(pcm->name, dbri->card->shortname);
-       dbri->pcm = pcm;
 
        if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm,
                        SNDRV_DMA_TYPE_CONTINUOUS,
@@ -2452,7 +2432,6 @@ static int __init snd_dbri_mixer(struct snd_dbri * dbri)
        for (idx = DBRI_REC; idx < DBRI_NO_STREAMS; idx++) {
                dbri->stream_info[idx].left_gain = 0;
                dbri->stream_info[idx].right_gain = 0;
-               dbri->stream_info[idx].balance = DBRI_MID_BALANCE;
        }
 
        return 0;
@@ -2484,12 +2463,11 @@ static void dbri_debug_read(struct snd_info_entry * entry,
                        struct dbri_pipe *pptr = &dbri->pipes[pipe];
                        snd_iprintf(buffer,
                                    "Pipe %d: %s SDP=0x%x desc=%d, "
-                                   "len=%d @ %d prev: %d next %d\n",
+                                   "len=%d @ %d next %d\n",
                                    pipe,
-                                   (pptr->direction ==
-                                    PIPEinput ? "input" : "output"), pptr->sdp,
-                                   pptr->desc, pptr->length, pptr->cycle,
-                                   pptr->prevpipe, pptr->nextpipe);
+                                  ((pptr->sdp & D_SDP_TO_SER) ? "output" : "input"),
+                                   pptr->sdp, pptr->desc,
+                                   pptr->length, pptr->cycle, pptr->nextpipe);
                }
        }
 }
@@ -2528,7 +2506,6 @@ static int __init snd_dbri_create(struct snd_card *card,
        dbri->card = card;
        dbri->sdev = sdev;
        dbri->irq = irq->pri;
-       dbri->dbri_version = sdev->prom_name[9];
 
        dbri->dma = sbus_alloc_consistent(sdev, sizeof(struct dbri_dma),
                                          &dbri->dma_dvma);
@@ -2648,7 +2625,7 @@ static int __init dbri_attach(int prom_node, struct sbus_dev *sdev)
 
        printk(KERN_INFO "audio%d at %p (irq %d) is DBRI(%c)+CS4215(%d)\n",
               dev, dbri->regs,
-              dbri->irq, dbri->dbri_version, dbri->mm.version);
+              dbri->irq, sdev->prom_name[9], dbri->mm.version);
        dev++;
 
        return 0;