From: Krzysztof Helt krzysztof.h1@wp.pl
This patch: - removes redundant constant suffices - removes redundant parentheses - removes redundant curly brackets - removes check if a spinlock is locked inside method which is only called with the spinlock locked - moves few functions to the __init section - removes line which appears twice after the previous patch - minor comments improvements
Signed-off-by: Krzysztof Helt krzysztof.h1@wp.pl ---
Takashi, I fixed issues you pointed out.
If you want more fixes of coding style, let me know and I'll prepare a separate patch.
--- linux-2.6.22/sound/sparc/dbri.c 2007-09-03 20:51:40.000000000 +0200 +++ linux-2.6.23/sound/sparc/dbri.c 2007-09-03 20:53:27.000000000 +0200 @@ -233,12 +233,12 @@ static struct { ****************************************************************************/
/* DBRI main registers */ -#define REG0 0x00UL /* Status and Control */ -#define REG1 0x04UL /* Mode and Interrupt */ -#define REG2 0x08UL /* Parallel IO */ -#define REG3 0x0cUL /* Test */ -#define REG8 0x20UL /* Command Queue Pointer */ -#define REG9 0x24UL /* Interrupt Queue Pointer */ +#define REG0 0x00 /* Status and Control */ +#define REG1 0x04 /* Mode and Interrupt */ +#define REG2 0x08 /* Parallel IO */ +#define REG3 0x0c /* Test */ +#define REG8 0x20 /* Command Queue Pointer */ +#define REG9 0x24 /* Interrupt Queue Pointer */
#define DBRI_NO_CMDS 64 #define DBRI_INT_BLK 64 @@ -565,7 +565,7 @@ struct snd_dbri { /* Translate the ALSA direction into the array index */ #define DBRI_STREAMNO(substream) \ (substream->stream == \ - SNDRV_PCM_STREAM_PLAYBACK? DBRI_PLAY: DBRI_REC) + SNDRV_PCM_STREAM_PLAYBACK ? DBRI_PLAY: DBRI_REC)
/* Return a pointer to dbri_streaminfo */ #define DBRI_STREAM(dbri, substream) \ @@ -611,8 +611,8 @@ The list is terminated with a WAIT comma CPU interrupt to signal completion.
Since the DBRI can run in parallel with the CPU, several means of -synchronization present themselves. The method implemented here is only -use of the dbri_cmdwait() to wait for execution of batch of sent commands. +synchronization present themselves. The method implemented here uses +the dbri_cmdwait() to wait for execution of batch of sent commands.
A circular command buffer is used here. A new command is being added while another can be executed. The scheme works by adding two WAIT commands @@ -648,15 +648,14 @@ static void dbri_cmdwait(struct snd_dbri } spin_unlock_irqrestore(&dbri->lock, flags);
- if (maxloops == 0) { + if (maxloops == 0) printk(KERN_ERR "DBRI: Chip never completed command buffer\n"); - } else { + else dprintk(D_CMD, "Chip completed command buffer (%d)\n", MAXLOOPS - maxloops - 1); - } } /* - * Lock the command queue and returns pointer to a space for len cmd words + * Lock the command queue and return pointer to space for len cmd words * It locks the cmdlock spinlock. */ static s32 *dbri_cmdlock(struct snd_dbri *dbri, int len) @@ -749,7 +748,7 @@ static void dbri_reset(struct snd_dbri * }
/* Lock must not be held before calling this */ -static void dbri_initialize(struct snd_dbri *dbri) +static void __init dbri_initialize(struct snd_dbri *dbri) { s32 *cmd; u32 dma_addr; @@ -804,7 +803,7 @@ list ordering, among other things. The here interface closely with the transmit and receive interrupt code.
*/ -static int pipe_active(struct snd_dbri *dbri, int pipe) +static inline int pipe_active(struct snd_dbri *dbri, int pipe) { return ((pipe >= 0) && (dbri->pipes[pipe].desc != -1)); } @@ -1148,6 +1147,7 @@ static int setup_descs(struct snd_dbri * if (!dbri->dma->desc[desc].ba) break; } + if (desc == DBRI_NO_DESCS) { printk(KERN_ERR "DBRI: setup_descs: No descriptors\n"); return -1; @@ -1308,7 +1308,7 @@ to the DBRI via the CHI interface and fe * Lock must not be held before calling it.
*/ -static void cs4215_setup_pipes(struct snd_dbri *dbri) +static __init void cs4215_setup_pipes(struct snd_dbri *dbri) { unsigned long flags;
@@ -1341,7 +1341,7 @@ static void cs4215_setup_pipes(struct sn dbri_cmdwait(dbri); }
-static int cs4215_init_data(struct cs4215 *mm) +static __init int cs4215_init_data(struct cs4215 *mm) { /* * No action, memory resetting only. @@ -1633,7 +1633,7 @@ static int cs4215_prepare(struct snd_dbr /* * */ -static int cs4215_init(struct snd_dbri *dbri) +static __init int cs4215_init(struct snd_dbri *dbri) { u32 reg2 = sbus_readl(dbri->regs + REG2); dprintk(D_MM, "cs4215_init: reg2=0x%x\n", reg2); @@ -1771,13 +1771,10 @@ static void xmit_descs(struct snd_dbri *
static void transmission_complete_intr(struct snd_dbri *dbri, int pipe) { - struct dbri_streaminfo *info; - int td; + struct dbri_streaminfo *info = &dbri->stream_info[DBRI_PLAY]; + int td = dbri->pipes[pipe].desc; int status;
- info = &dbri->stream_info[DBRI_PLAY]; - - td = dbri->pipes[pipe].desc; while (td >= 0) { if (td >= DBRI_NO_DESCS) { printk(KERN_ERR "DBRI: invalid td on pipe %d\n", pipe); @@ -1798,12 +1795,9 @@ static void transmission_complete_intr(s }
/* Notify ALSA */ - if (spin_is_locked(&dbri->lock)) { - spin_unlock(&dbri->lock); - snd_pcm_period_elapsed(info->substream); - spin_lock(&dbri->lock); - } else - snd_pcm_period_elapsed(info->substream); + spin_unlock(&dbri->lock); + snd_pcm_period_elapsed(info->substream); + spin_lock(&dbri->lock); }
static void reception_complete_intr(struct snd_dbri *dbri, int pipe) @@ -1830,12 +1824,9 @@ static void reception_complete_intr(stru rd, DBRI_RD_STATUS(status), DBRI_RD_CNT(status));
/* Notify ALSA */ - if (spin_is_locked(&dbri->lock)) { - spin_unlock(&dbri->lock); - snd_pcm_period_elapsed(info->substream); - spin_lock(&dbri->lock); - } else - snd_pcm_period_elapsed(info->substream); + spin_unlock(&dbri->lock); + snd_pcm_period_elapsed(info->substream); + spin_lock(&dbri->lock); }
static void dbri_process_one_interrupt(struct snd_dbri *dbri, int x) @@ -1986,10 +1977,10 @@ static irqreturn_t snd_dbri_interrupt(in PCM Interface ****************************************************************************/ static struct snd_pcm_hardware snd_dbri_pcm_hw = { - .info = (SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_BLOCK_TRANSFER | - SNDRV_PCM_INFO_MMAP_VALID), + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_MMAP_VALID, .formats = SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_U8 | @@ -1999,7 +1990,7 @@ static struct snd_pcm_hardware snd_dbri_ .rate_max = 48000, .channels_min = 1, .channels_max = 2, - .buffer_bytes_max = (64 * 1024), + .buffer_bytes_max = 64 * 1024, .period_bytes_min = 1, .period_bytes_max = DBRI_TD_MAXCNT, .periods_min = 1, @@ -2266,11 +2257,10 @@ static int snd_cs4215_info_volume(struct uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 2; uinfo->value.integer.min = 0; - if (kcontrol->private_value == DBRI_PLAY) { + if (kcontrol->private_value == DBRI_PLAY) uinfo->value.integer.max = DBRI_MAX_VOLUME; - } else { + else uinfo->value.integer.max = DBRI_MAX_GAIN; - } return 0; }
@@ -2304,7 +2294,7 @@ static int snd_cs4215_put_volume(struct info->right_gain = ucontrol->value.integer.value[1]; changed = 1; } - if (changed == 1) { + if (changed) { /* First mute outputs, and wait 1/8000 sec (125 us) * to make sure this takes. This avoids clicking noises. */ @@ -2443,8 +2433,9 @@ static int __init snd_dbri_mixer(struct strcpy(card->mixername, card->shortname);
for (idx = 0; idx < ARRAY_SIZE(dbri_controls); idx++) { - if ((err = snd_ctl_add(card, - snd_ctl_new1(&dbri_controls[idx], dbri))) < 0) + err = snd_ctl_add(card, + snd_ctl_new1(&dbri_controls[idx], dbri)); + if (err < 0) return err; }
@@ -2485,8 +2476,8 @@ static void dbri_debug_read(struct snd_i "Pipe %d: %s SDP=0x%x desc=%d, " "len=%d next %d\n", pipe, - ((pptr->sdp & D_SDP_TO_SER) ? "output" : - "input"), + (pptr->sdp & D_SDP_TO_SER) ? "output" : + "input", pptr->sdp, pptr->desc, pptr->length, pptr->nextpipe); } @@ -2502,7 +2493,7 @@ void snd_dbri_proc(struct snd_dbri *dbri snd_info_set_text_ops(entry, dbri, dbri_regs_read);
#ifdef DBRI_DEBUG - if (! snd_card_proc_new(dbri->card, "debug", &entry)) { + if (!snd_card_proc_new(dbri->card, "debug", &entry)) { snd_info_set_text_ops(entry, dbri, dbri_debug_read); entry->mode = S_IFREG | S_IRUGO; /* Readable only. */ } @@ -2633,11 +2624,12 @@ static int __init dbri_attach(int prom_n }
dbri = card->private_data; - if ((err = snd_dbri_pcm(dbri)) < 0) + err = snd_dbri_pcm(dbri); + if (err < 0) goto _err;
- if ((err = snd_dbri_mixer(dbri)) < 0) - if ((err = snd_dbri_mixer(dbri)) < 0) + err = snd_dbri_mixer(dbri); + if (err < 0) goto _err;
/* /proc file handling */