diff options
| -rw-r--r-- | sound/pci/azt3328.c | 31 |
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]); |