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authorAndreas Mohr <andi@lisas.de>2010-12-27 21:16:43 +0100
committerTakashi Iwai <tiwai@suse.de>2011-01-02 11:07:45 +0100
commitadf5931f8c412e90f47033ca6bc7a0bc8a930ba1 (patch)
tree49b9a3c5e2728371033cb3bc1d390ac4c15415a7
parenta8cc0f421b37956262a92591f7397b200d232da6 (diff)
ALSA: azt3328: cosmetics, minor updates
- correct samples to be POSIX shell compatible - add logging of jiffies value in _pointer() - several comments - cleanup Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--sound/pci/azt3328.c31
1 files changed, 19 insertions, 12 deletions
diff --git a/sound/pci/azt3328.c b/sound/pci/azt3328.c
index 2f3cacbd5528..006f8c0ffb56 100644
--- a/sound/pci/azt3328.c
+++ b/sound/pci/azt3328.c
@@ -1,6 +1,6 @@
/*
* azt3328.c - driver for Aztech AZF3328 based soundcards (e.g. PCI168).
- * Copyright (C) 2002, 2005 - 2009 by Andreas Mohr <andi AT lisas.de>
+ * Copyright (C) 2002, 2005 - 2010 by Andreas Mohr <andi AT lisas.de>
*
* Framework borrowed from Bart Hartgers's als4000.c.
* Driver developed on PCI168 AP(W) version (PCI rev. 10, subsystem ID 1801),
@@ -201,14 +201,15 @@ MODULE_SUPPORTED_DEVICE("{{Aztech,AZF3328}}");
/* === Debug settings ===
Further diagnostic functionality than the settings below
- does not need to be provided, since one can easily write a bash script
+ does not need to be provided, since one can easily write a POSIX shell script
to dump the card's I/O ports (those listed in lspci -v -v):
- function dump()
+ dump()
{
local descr=$1; local addr=$2; local count=$3
echo "${descr}: ${count} @ ${addr}:"
- dd if=/dev/port skip=$[${addr}] count=${count} bs=1 2>/dev/null| hexdump -C
+ dd if=/dev/port skip=`printf %d ${addr}` count=${count} bs=1 \
+ 2>/dev/null| hexdump -C
}
and then use something like
"dump joy200 0x200 8", "dump mpu388 0x388 4", "dump joy 0xb400 8",
@@ -216,14 +217,14 @@ MODULE_SUPPORTED_DEVICE("{{Aztech,AZF3328}}");
possibly within a "while true; do ... sleep 1; done" loop.
Tweaking ports could be done using
VALSTRING="`printf "%02x" $value`"
- printf "\x""$VALSTRING"|dd of=/dev/port seek=$[${addr}] bs=1 2>/dev/null
+ printf "\x""$VALSTRING"|dd of=/dev/port seek=`printf %d ${addr}` bs=1 \
+ 2>/dev/null
*/
#define DEBUG_MISC 0
#define DEBUG_CALLS 0
#define DEBUG_MIXER 0
#define DEBUG_CODEC 0
-#define DEBUG_IO 0
#define DEBUG_TIMER 0
#define DEBUG_GAME 0
#define DEBUG_PM 0
@@ -299,6 +300,7 @@ struct snd_azf3328_codec_data {
};
enum snd_azf3328_codec_type {
+ /* warning: fixed indices (also used for bitmask checks!) */
AZF_CODEC_PLAYBACK = 0,
AZF_CODEC_CAPTURE = 1,
AZF_CODEC_I2S_OUT = 2,
@@ -362,6 +364,9 @@ MODULE_DEVICE_TABLE(pci, snd_azf3328_ids);
static int
snd_azf3328_io_reg_setb(unsigned reg, u8 mask, bool do_set)
{
+ /* Well, strictly spoken, the inb/outb sequence isn't atomic
+ and would need locking. However we currently don't care
+ since it potentially complicates matters. */
u8 prev = inb(reg), new;
new = (do_set) ? (prev|mask) : (prev & ~mask);
@@ -1004,7 +1009,8 @@ snd_azf3328_codec_setfmt(struct snd_azf3328 *chip,
* (FIXME: yes, it works, but what exactly am I doing here?? :)
* FIXME: does this have some side effects for full-duplex
* or other dramatic side effects? */
- if (codec_type == AZF_CODEC_PLAYBACK) /* only do it for playback */
+ /* do it for non-capture codecs only */
+ if (codec_type == AZF_CODEC_PLAYBACK)
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
snd_azf3328_codec_inw(codec, IDX_IO_CODEC_DMA_FLAGS) |
DMA_RUN_SOMETHING1 |
@@ -1368,8 +1374,8 @@ snd_azf3328_codec_pointer(struct snd_pcm_substream *substream,
/* calculate offset */
result -= bufptr;
frmres = bytes_to_frames( substream->runtime, result);
- snd_azf3328_dbgcodec("%s @ 0x%8lx, frames %8ld\n",
- codec->name, result, frmres);
+ snd_azf3328_dbgcodec("%08li %s @ 0x%8lx, frames %8ld\n",
+ jiffies, codec->name, result, frmres);
return frmres;
}
@@ -1532,7 +1538,7 @@ snd_azf3328_gameport_cooked_read(struct gameport *gameport,
}
}
- /* trigger next axes sampling, to be evaluated the next time we
+ /* trigger next sampling of axes, to be evaluated the next time we
* enter this function */
/* for some very, very strange reason we cannot enable
@@ -1966,7 +1972,7 @@ snd_azf3328_timer_start(struct snd_timer *timer)
snd_azf3328_dbgtimer("delay was too low (%d)!\n", delay);
delay = 49; /* minimum time is 49 ticks */
}
- snd_azf3328_dbgtimer("setting timer countdown value %d, add COUNTDOWN|IRQ\n", delay);
+ snd_azf3328_dbgtimer("setting timer countdown value %d\n", delay);
delay |= TIMER_COUNTDOWN_ENABLE | TIMER_IRQ_ENABLE;
spin_lock_irqsave(&chip->reg_lock, flags);
snd_azf3328_ctrl_outl(chip, IDX_IO_TIMER_VALUE, delay);
@@ -2257,7 +2263,7 @@ snd_azf3328_create(struct snd_card *card,
struct snd_azf3328_codec_data *codec =
&chip->codecs[codec_type];
- /* shutdown codecs to save power */
+ /* shutdown codecs to reduce power / noise */
/* have ...ctrl_codec_activity() act properly */
codec->running = 1;
snd_azf3328_ctrl_codec_activity(chip, codec_type, 0);
@@ -2419,6 +2425,7 @@ snd_azf3328_suspend(struct pci_dev *pci, pm_message_t state)
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+ /* same pcm object for playback/capture */
snd_pcm_suspend_all(chip->pcm[AZF_CODEC_PLAYBACK]);
snd_pcm_suspend_all(chip->pcm[AZF_CODEC_I2S_OUT]);