// SPDX-License-Identifier: GPL-2.0-or-later
/* azt3328.c - driver for Aztech AZF3328 based soundcards (e.g. PCI168).
* Copyright ( C ) 2002 , 2005 - 2011 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 ) ,
* found in a Fujitsu - Siemens PC ( " Cordant " , aluminum case ) .
* Other versions are :
* PCI168 A ( W ) , sub ID 1800
* PCI168 A / AP , sub ID 8000
* Please give me feedback in case you try my driver with one of these ! !
*
* Keywords : Windows XP Vista 168 nt4 - 125 . zip 168 win95 - 125 . zip PCI 168 download
* ( XP / Vista do not support this card at all but every Linux distribution
* has very good support out of the box ;
* just to make sure that the right people hit this and get to know that ,
* despite the high level of Internet ignorance - as usual : - P -
* about very good support for this card - on Linux ! )
*
* NOTES
* Since Aztech does not provide any chipset documentation ,
* even on repeated request to various addresses ,
* and the answer that was finally given was negative
* ( and I was stupid enough to manage to get hold of a PCI168 soundcard
* in the first place > : - P } ) ,
* I was forced to base this driver on reverse engineering
* ( 3 weeks ' worth of evenings filled with driver work ) .
* ( and no , I did NOT go the easy way : to pick up a SB PCI128 for 9 Euros )
*
* It is quite likely that the AZF3328 chip is the PCI cousin of the
* AZF3318 ( " azt1020 pnp " , " MM Pro 16 " ) ISA chip , given very similar specs .
*
* The AZF3328 chip ( note : AZF3328 , * not * AZT3328 , that ' s just the driver name
* for compatibility reasons ) from Azfin ( joint - venture of Aztech and Fincitec ,
* Fincitec acquired by National Semiconductor in 2002 , together with the
* Fincitec - related company ARSmikro ) has the following features :
*
* - compatibility & compliance :
* - Microsoft PC 97 ( " PC 97 Hardware Design Guide " ,
* http : //www.microsoft.com/whdc/archive/pcguides.mspx)
* - Microsoft PC 98 Baseline Audio
* - MPU401 UART
* - Sound Blaster Emulation ( DOS Box )
* - builtin AC97 conformant codec ( SNR over 80 dB )
* Note that " conformant " ! = " compliant " ! ! this chip ' s mixer register layout
* * differs * from the standard AC97 layout :
* they chose to not implement the headphone register ( which is not a
* problem since it ' s merely optional ) , yet when doing this , they committed
* the grave sin of letting other registers follow immediately instead of
* keeping a headphone dummy register , thereby shifting the mixer register
* addresses illegally . So far unfortunately it looks like the very flexible
* ALSA AC97 support is still not enough to easily compensate for such a
* grave layout violation despite all tweaks and quirks mechanisms it offers .
* Well , not quite : now ac97 layer is much improved ( bus - specific ops ! ) ,
* thus I was able to implement support - it ' s actually working quite well .
* An interesting item might be Aztech AMR 2800 - W , since it ' s an AC97
* modem card which might reveal the Aztech - specific codec ID which
* we might want to pretend , too . Dito PCI168 ' s brother , PCI368 ,
* where the advertising datasheet says it ' s AC97 - based and has a
* Digital Enhanced Game Port .
* - builtin genuine OPL3 - verified to work fine , 20080506
* - full duplex 16 bit playback / record at independent sampling rate
* - MPU401 ( + legacy address support , claimed by one official spec sheet )
* FIXME : how to enable legacy addr ? ?
* - game port ( legacy address support )
* - builtin DirectInput support , helps reduce CPU overhead ( interrupt - driven
* features supported ) . - See common term " Digital Enhanced Game Port " . . .
* ( probably DirectInput 3 . 0 spec - confirm )
* - builtin 3 D enhancement ( said to be YAMAHA Ymersion )
* - built - in General DirectX timer having a 20 bits counter
* with 1 us resolution ( see below ! )
* - I2S serial output port for external DAC
* [ FIXME : 3 . 3 V or 5 V level ? maximum rate is 66 . 2 kHz right ? ]
* - supports 33 MHz PCI spec 2 . 1 , PCI power management 1 . 0 , compliant with ACPI
* - supports hardware volume control
* - single chip low cost solution ( 128 pin QFP )
* - supports programmable Sub - vendor and Sub - system ID [ 24 C02 SEEPROM chip ]
* required for Microsoft ' s logo compliance ( FIXME : where ? )
* At least the Trident 4 D Wave DX has one bit somewhere
* to enable writes to PCI subsystem VID registers , that should be it .
* This might easily be in extended PCI reg space , since PCI168 also has
* some custom data starting at 0 x80 . What kind of config settings
* are located in our extended PCI space anyway ? ?
* - PCI168 AP ( W ) card : power amplifier with 4 Watts / channel at 4 Ohms
* [ TDA1517P chip ]
*
* Note that this driver now is actually * better * than the Windows driver ,
* since it additionally supports the card ' s 1 MHz DirectX timer - just try
* the following snd - seq module parameters etc . :
* - options snd - seq seq_default_timer_class = 2 seq_default_timer_sclass = 0
* seq_default_timer_card = 0 seq_client_load = 1 seq_default_timer_device = 0
* seq_default_timer_subdevice = 0 seq_default_timer_resolution = 1000000
* - " timidity - iAv - B2 , 8 - Os - EFreverb = 0 "
* - " pmidi - p 128 : 0 jazz . mid "
*
* OPL3 hardware playback testing , try something like :
* cat / proc / asound / hwdep
* and
* aconnect - o
* Then use
* sbiload - Dhw : x , y - - opl3 / usr / share / sounds / opl3 / std . o3 . . . . . . . / drums . o3
* where x , y is the xx - yy number as given in hwdep .
* Then try
* pmidi - p a : b jazz . mid
* where a : b is the client number plus 0 usually , as given by aconnect above .
* Oh , and make sure to unmute the FM mixer control ( doh ! )
* NOTE : power use during OPL3 playback is _ VERY_ high ( 70 W - - > 90 W ! )
* despite no CPU activity , possibly due to hindering ACPI idling somehow .
* Shouldn ' t be a problem of the AZF3328 chip itself , I ' d hope .
* Higher PCM / FM mixer levels seem to conflict ( causes crackling ) ,
* at least sometimes . Maybe even use with hardware sequencer timer above : )
* adplay / adplug - utils might soon offer hardware - based OPL3 playback , too .
*
* Certain PCI versions of this card are susceptible to DMA traffic underruns
* in some systems ( resulting in sound crackling / clicking / popping ) ,
* probably because they don ' t have a DMA FIFO buffer or so .
* Overview ( PCI ID / PCI subID / PCI rev . ) :
* - no DMA crackling on SiS735 : 0 x50DC / 0 x1801 / 16
* - unknown performance : 0 x50DC / 0 x1801 / 10
* ( well , it ' s not bad on an Athlon 1800 with now very optimized IRQ handler )
*
* Crackling happens with VIA chipsets or , in my case , an SiS735 , which is
* supposed to be very fast and supposed to get rid of crackling much
* better than a VIA , yet ironically I still get crackling , like many other
* people with the same chipset .
* Possible remedies :
* - use speaker ( amplifier ) output instead of headphone output
* ( in case crackling is due to overloaded output clipping )
* - plug card into a different PCI slot , preferably one that isn ' t shared
* too much ( this helps a lot , but not completely ! )
* - get rid of PCI VGA card , use AGP instead
* - upgrade or downgrade BIOS
* - fiddle with PCI latency settings ( setpci - v - s BUSID latency_timer = XX )
* Not too helpful .
* - Disable ACPI / power management / " Auto Detect RAM / PCI Clk " in BIOS
*
* BUGS
* - full - duplex might * still * be problematic , however a recent test was fine
* - ( non - bug ) " Bass / Treble or 3 D settings don ' t work " - they do get evaluated
* if you set PCM output switch to " pre 3 D " instead of " post 3 D " .
* If this can ' t be set , then get a mixer application that Isn ' t Stupid ( tm )
* ( e . g . kmix , gamix ) - unfortunately several are ! !
* - locking is not entirely clean , especially the audio stream activity
* ints - - > may be racy
* - an _ unconnected_ secondary joystick at the gameport will be reported
* to be " active " ( floating values , not precisely - 1 ) due to the way we need
* to read the Digital Enhanced Game Port . Not sure whether it is fixable .
*
* TODO
* - use PCI_VDEVICE
* - verify driver status on x86_64
* - test multi - card driver operation
* - ( ab ) use 1 MHz DirectX timer as kernel clocksource
* - test MPU401 MIDI playback etc .
* - add more power micro - management ( disable various units of the card
* as long as they ' re unused , to improve audio quality and save power ) .
* However this requires more I / O ports which I haven ' t figured out yet
* and which thus might not even exist . . .
* The standard suspend / resume functionality could probably make use of
* some improvement , too . . .
* - figure out what all unknown port bits are responsible for
* - figure out some cleverly evil scheme to possibly make ALSA AC97 code
* fully accept our quite incompatible " " AC97 " " mixer and thus save some
* code ( but I ' m not too optimistic that doing this is possible at all )
* - use MMIO ( memory - mapped I / O ) ? Slightly faster access , e . g . for gameport .
*/
#include <linux/io.h>
#include <linux/init.h>
#include <linux/bug.h> /* WARN_ONCE */
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/gameport.h>
#include <linux/module.h>
#include <linux/dma-mapping.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/rawmidi.h>
#include <sound/mpu401.h>
#include <sound/opl3.h>
#include <sound/initval.h>
/*
* Config switch , to use ALSA ' s AC97 layer instead of old custom mixer crap .
* If the AC97 compatibility parts we needed to implement locally turn out
* to work nicely , then remove the old implementation eventually .
*/
#define AZF_USE_AC97_LAYER 1
#ifdef AZF_USE_AC97_LAYER
#include <sound/ac97_codec.h>
#endif
#include "azt3328.h"
MODULE_AUTHOR("Andreas Mohr <andi AT lisas.de>" );
MODULE_DESCRIPTION("Aztech AZF3328 (PCI168)" );
MODULE_LICENSE("GPL" );
#if IS_REACHABLE(CONFIG_GAMEPORT)
#define SUPPORT_GAMEPORT 1
#endif
/* === Debug settings ===
Further diagnostic functionality than the settings below
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 ) :
dump ( )
{
local descr = $ 1 ; local addr = $ 2 ; local count = $ 3
echo " $ { descr } : $ { count } @ $ { addr } : "
dd if = / dev / port skip = ` printf % d $ { addr } ` count = $ { count } bs = 1 \
2 > / dev / null | hexdump - C
}
and then use something like
" dump joy200 0 x200 8 " , " dump mpu388 0 x388 4 " , " dump joy 0 xb400 8 " ,
" dump codec00 0 xa800 32 " , " dump mixer 0 xb800 64 " , " dump synth 0 xbc00 8 " ,
possibly within a " while true ; do . . . sleep 1 ; done " loop .
Tweaking ports could be done using
VALSTRING = " ` printf " % 02 x " $ value ` "
printf " \ x " " $ VALSTRING " | dd of = / dev / port seek = ` printf % d $ { addr } ` bs = 1 \
2 > / dev / null
*/
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
module_param_array(index, int , NULL, 0444 );
MODULE_PARM_DESC(index, "Index value for AZF3328 soundcard." );
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
module_param_array(id, charp, NULL, 0444 );
MODULE_PARM_DESC(id, "ID string for AZF3328 soundcard." );
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
module_param_array(enable, bool , NULL, 0444 );
MODULE_PARM_DESC(enable, "Enable AZF3328 soundcard." );
static int seqtimer_scaling = 128 ;
module_param(seqtimer_scaling, int , 0444 );
MODULE_PARM_DESC(seqtimer_scaling, "Set 1024000Hz sequencer timer scale factor (lockup danger!). Default 128." );
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 ,
};
struct snd_azf3328_codec_data {
unsigned long io_base; /* keep first! (avoid offset calc) */
unsigned int dma_base; /* helper to avoid an indirection in hotpath */
spinlock_t *lock; /* TODO: convert to our own per-codec lock member */
struct snd_pcm_substream *substream;
bool running;
enum snd_azf3328_codec_type type;
const char *name;
};
struct snd_azf3328 {
/* often-used fields towards beginning, then grouped */
unsigned long ctrl_io; /* usually 0xb000, size 128 */
unsigned long game_io; /* usually 0xb400, size 8 */
unsigned long mpu_io; /* usually 0xb800, size 4 */
unsigned long opl3_io; /* usually 0xbc00, size 8 */
unsigned long mixer_io; /* usually 0xc000, size 64 */
spinlock_t reg_lock;
struct snd_timer *timer;
struct snd_pcm *pcm[3 ];
/* playback, recording and I2S out codecs */
struct snd_azf3328_codec_data codecs[3 ];
#ifdef AZF_USE_AC97_LAYER
struct snd_ac97 *ac97;
#endif
struct snd_card *card;
struct snd_rawmidi *rmidi;
#ifdef SUPPORT_GAMEPORT
struct gameport *gameport;
u16 axes[4 ];
#endif
struct pci_dev *pci;
int irq;
/* register 0x6a is write-only, thus need to remember setting.
* If we need to add more registers here , then we might try to fold this
* into some transparent combined shadow register handling with
* CONFIG_PM register storage below, but that's slightly difficult. */
u16 shadow_reg_ctrl_6AH;
/* register value containers for power management
* Note: not always full I/O range preserved (similar to Win driver!) */
u32 saved_regs_ctrl[AZF_ALIGN(AZF_IO_SIZE_CTRL_PM) / 4 ];
u32 saved_regs_game[AZF_ALIGN(AZF_IO_SIZE_GAME_PM) / 4 ];
u32 saved_regs_mpu[AZF_ALIGN(AZF_IO_SIZE_MPU_PM) / 4 ];
u32 saved_regs_opl3[AZF_ALIGN(AZF_IO_SIZE_OPL3_PM) / 4 ];
u32 saved_regs_mixer[AZF_ALIGN(AZF_IO_SIZE_MIXER_PM) / 4 ];
};
static const struct pci_device_id snd_azf3328_ids[] = {
{ 0 x122D, 0 x50DC, PCI_ANY_ID, PCI_ANY_ID, 0 , 0 , 0 }, /* PCI168/3328 */
{ 0 x122D, 0 x80DA, PCI_ANY_ID, PCI_ANY_ID, 0 , 0 , 0 }, /* 3328 */
{ 0 , }
};
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);
/* we need to always write the new value no matter whether it differs
* or not, since some register bits don't indicate their setting */
outb(new , reg);
if (new != prev)
return 1 ;
return 0 ;
}
static inline void
snd_azf3328_codec_outb(const struct snd_azf3328_codec_data *codec,
unsigned reg,
u8 value
)
{
outb(value, codec->io_base + reg);
}
static inline u8
snd_azf3328_codec_inb(const struct snd_azf3328_codec_data *codec, unsigned reg)
{
return inb(codec->io_base + reg);
}
static inline void
snd_azf3328_codec_outw(const struct snd_azf3328_codec_data *codec,
unsigned reg,
u16 value
)
{
outw(value, codec->io_base + reg);
}
static inline u16
snd_azf3328_codec_inw(const struct snd_azf3328_codec_data *codec, unsigned reg)
{
return inw(codec->io_base + reg);
}
static inline void
snd_azf3328_codec_outl_multi(const struct snd_azf3328_codec_data *codec,
unsigned reg, const void *buffer, int count
)
{
unsigned long addr = codec->io_base + reg;
if (count) {
const u32 *buf = buffer;
do {
outl(*buf++, addr);
addr += 4 ;
} while (--count);
}
}
static inline u32
snd_azf3328_codec_inl(const struct snd_azf3328_codec_data *codec, unsigned reg)
{
return inl(codec->io_base + reg);
}
static inline void
snd_azf3328_ctrl_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value)
{
outb(value, chip->ctrl_io + reg);
}
static inline u8
snd_azf3328_ctrl_inb(const struct snd_azf3328 *chip, unsigned reg)
{
return inb(chip->ctrl_io + reg);
}
static inline u16
snd_azf3328_ctrl_inw(const struct snd_azf3328 *chip, unsigned reg)
{
return inw(chip->ctrl_io + reg);
}
static inline void
snd_azf3328_ctrl_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value)
{
outw(value, chip->ctrl_io + reg);
}
static inline void
snd_azf3328_ctrl_outl(const struct snd_azf3328 *chip, unsigned reg, u32 value)
{
outl(value, chip->ctrl_io + reg);
}
static inline void __maybe_unused
snd_azf3328_game_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value)
{
outb(value, chip->game_io + reg);
}
static inline void __maybe_unused
snd_azf3328_game_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value)
{
outw(value, chip->game_io + reg);
}
static inline u8 __maybe_unused
snd_azf3328_game_inb(const struct snd_azf3328 *chip, unsigned reg)
{
return inb(chip->game_io + reg);
}
static inline u16 __maybe_unused
snd_azf3328_game_inw(const struct snd_azf3328 *chip, unsigned reg)
{
return inw(chip->game_io + reg);
}
static inline void
snd_azf3328_mixer_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value)
{
outw(value, chip->mixer_io + reg);
}
static inline u16
snd_azf3328_mixer_inw(const struct snd_azf3328 *chip, unsigned reg)
{
return inw(chip->mixer_io + reg);
}
#define AZF_MUTE_BIT 0 x80
static bool
snd_azf3328_mixer_mute_control(const struct snd_azf3328 *chip,
unsigned reg, bool do_mute
)
{
unsigned long portbase = chip->mixer_io + reg + 1 ;
bool updated;
/* the mute bit is on the *second* (i.e. right) register of a
* left/right channel setting */
updated = snd_azf3328_io_reg_setb(portbase, AZF_MUTE_BIT, do_mute);
/* indicate whether it was muted before */
return (do_mute) ? !updated : updated;
}
static inline bool
snd_azf3328_mixer_mute_control_master(const struct snd_azf3328 *chip,
bool do_mute
)
{
return snd_azf3328_mixer_mute_control(
chip,
IDX_MIXER_PLAY_MASTER,
do_mute
);
}
static inline bool
snd_azf3328_mixer_mute_control_pcm(const struct snd_azf3328 *chip,
bool do_mute
)
{
return snd_azf3328_mixer_mute_control(
chip,
IDX_MIXER_WAVEOUT,
do_mute
);
}
static inline void
snd_azf3328_mixer_reset(const struct snd_azf3328 *chip)
{
/* reset (close) mixer:
* first mute master volume , then reset
*/
snd_azf3328_mixer_mute_control_master(chip, 1 );
snd_azf3328_mixer_outw(chip, IDX_MIXER_RESET, 0 x0000);
}
#ifdef AZF_USE_AC97_LAYER
static inline void
snd_azf3328_mixer_ac97_map_unsupported(const struct snd_azf3328 *chip,
unsigned short reg, const char *mode)
{
/* need to add some more or less clever emulation? */
dev_warn(chip->card->dev,
"missing %s emulation for AC97 register 0x%02x!\n" ,
mode, reg);
}
/*
* Need to have _ special_ AC97 mixer hardware register index mapper ,
* to compensate for the issue of a rather AC97 - incompatible hardware layout .
*/
#define AZF_REG_MASK 0 x3f
#define AZF_AC97_REG_UNSUPPORTED 0 x8000
#define AZF_AC97_REG_REAL_IO_READ 0 x4000
#define AZF_AC97_REG_REAL_IO_WRITE 0 x2000
#define AZF_AC97_REG_REAL_IO_RW \
(AZF_AC97_REG_REAL_IO_READ | AZF_AC97_REG_REAL_IO_WRITE)
#define AZF_AC97_REG_EMU_IO_READ 0 x0400
#define AZF_AC97_REG_EMU_IO_WRITE 0 x0200
#define AZF_AC97_REG_EMU_IO_RW \
(AZF_AC97_REG_EMU_IO_READ | AZF_AC97_REG_EMU_IO_WRITE)
static unsigned short
snd_azf3328_mixer_ac97_map_reg_idx(unsigned short reg)
{
static const struct {
unsigned short azf_reg;
} azf_reg_mapper[] = {
/* Especially when taking into consideration
* mono / stereo - based sequence of azf vs . AC97 control series ,
* it ' s quite obvious that azf simply got rid
* of the AC97_HEADPHONE control at its intended offset ,
* thus shifted _ all_ controls by one ,
* and _ then_ simply added it as an FMSYNTH control at the end ,
* to make up for the offset .
* This means we ' ll have to translate indices here as
* needed and then do some tiny AC97 patch action
* ( snd_ac97_rename_vol_ctl ( ) etc . ) - that ' s it .
*/
{ /* AC97_RESET */ IDX_MIXER_RESET
| AZF_AC97_REG_REAL_IO_WRITE
| AZF_AC97_REG_EMU_IO_READ },
{ /* AC97_MASTER */ IDX_MIXER_PLAY_MASTER },
/* note large shift: AC97_HEADPHONE to IDX_MIXER_FMSYNTH! */
{ /* AC97_HEADPHONE */ IDX_MIXER_FMSYNTH },
{ /* AC97_MASTER_MONO */ IDX_MIXER_MODEMOUT },
{ /* AC97_MASTER_TONE */ IDX_MIXER_BASSTREBLE },
{ /* AC97_PC_BEEP */ IDX_MIXER_PCBEEP },
{ /* AC97_PHONE */ IDX_MIXER_MODEMIN },
{ /* AC97_MIC */ IDX_MIXER_MIC },
{ /* AC97_LINE */ IDX_MIXER_LINEIN },
{ /* AC97_CD */ IDX_MIXER_CDAUDIO },
{ /* AC97_VIDEO */ IDX_MIXER_VIDEO },
{ /* AC97_AUX */ IDX_MIXER_AUX },
{ /* AC97_PCM */ IDX_MIXER_WAVEOUT },
{ /* AC97_REC_SEL */ IDX_MIXER_REC_SELECT },
{ /* AC97_REC_GAIN */ IDX_MIXER_REC_VOLUME },
{ /* AC97_REC_GAIN_MIC */ AZF_AC97_REG_EMU_IO_RW },
{ /* AC97_GENERAL_PURPOSE */ IDX_MIXER_ADVCTL2 },
{ /* AC97_3D_CONTROL */ IDX_MIXER_ADVCTL1 },
};
unsigned short reg_azf = AZF_AC97_REG_UNSUPPORTED;
/* azf3328 supports the low-numbered and low-spec:ed range
of AC97 regs only */
if (reg <= AC97_3D_CONTROL) {
unsigned short reg_idx = reg / 2 ;
reg_azf = azf_reg_mapper[reg_idx].azf_reg;
/* a translation-only entry means it's real read/write: */
if (!(reg_azf & ~AZF_REG_MASK))
reg_azf |= AZF_AC97_REG_REAL_IO_RW;
} else {
switch (reg) {
case AC97_POWERDOWN:
reg_azf = AZF_AC97_REG_EMU_IO_RW;
break ;
case AC97_EXTENDED_ID:
reg_azf = AZF_AC97_REG_EMU_IO_READ;
break ;
case AC97_EXTENDED_STATUS:
/* I don't know what the h*ll AC97 layer
* would consult this _ extended_ register for
* given a base - AC97 - advertised card ,
* but let ' s just emulate it anyway : - P
*/
reg_azf = AZF_AC97_REG_EMU_IO_RW;
break ;
case AC97_VENDOR_ID1:
case AC97_VENDOR_ID2:
reg_azf = AZF_AC97_REG_EMU_IO_READ;
break ;
}
}
return reg_azf;
}
static const unsigned short
azf_emulated_ac97_caps =
AC97_BC_DEDICATED_MIC |
AC97_BC_BASS_TREBLE |
/* Headphone is an FM Synth control here */
AC97_BC_HEADPHONE |
/* no AC97_BC_LOUDNESS! */
/* mask 0x7c00 is
vendor - specific 3 D enhancement
vendor indicator .
Since there actually _ is_ an
entry for Aztech Labs
( 13 ) , make damn sure
to indicate it. */
(13 << 10 );
static const unsigned short
azf_emulated_ac97_powerdown =
/* pretend everything to be active */
AC97_PD_ADC_STATUS |
AC97_PD_DAC_STATUS |
AC97_PD_MIXER_STATUS |
AC97_PD_VREF_STATUS;
/*
* Emulated , _ inofficial_ vendor ID
* ( there might be some devices such as the MR 2800 - W
* which could reveal the real Aztech AC97 ID ) .
* We choose to use " AZT " prefix , and then use 1 to indicate PCI168
* ( better don ' t use 0 x68 since there ' s a PCI368 as well ) .
*/
static const unsigned int
azf_emulated_ac97_vendor_id = 0 x415a5401;
static unsigned short
snd_azf3328_mixer_ac97_read(struct snd_ac97 *ac97, unsigned short reg_ac97)
{
const struct snd_azf3328 *chip = ac97->private_data;
unsigned short reg_azf = snd_azf3328_mixer_ac97_map_reg_idx(reg_ac97);
unsigned short reg_val = 0 ;
bool unsupported = false ;
dev_dbg(chip->card->dev, "snd_azf3328_mixer_ac97_read reg_ac97 %u\n" ,
reg_ac97);
if (reg_azf & AZF_AC97_REG_UNSUPPORTED)
unsupported = true ;
else {
if (reg_azf & AZF_AC97_REG_REAL_IO_READ)
reg_val = snd_azf3328_mixer_inw(chip,
reg_azf & AZF_REG_MASK);
else {
/*
* Proceed with dummy I / O read ,
* to ensure compatible timing where this may matter .
* ( ALSA AC97 layer usually doesn ' t call I / O functions
* due to intelligent I / O caching anyway )
* Choose a mixer register that ' s thoroughly unrelated
* to common audio ( try to minimize distortion ) .
*/
snd_azf3328_mixer_inw(chip, IDX_MIXER_SOMETHING30H);
}
if (reg_azf & AZF_AC97_REG_EMU_IO_READ) {
switch (reg_ac97) {
case AC97_RESET:
reg_val |= azf_emulated_ac97_caps;
break ;
case AC97_POWERDOWN:
reg_val |= azf_emulated_ac97_powerdown;
break ;
case AC97_EXTENDED_ID:
case AC97_EXTENDED_STATUS:
/* AFAICS we simply can't support anything: */
reg_val |= 0 ;
break ;
case AC97_VENDOR_ID1:
reg_val = azf_emulated_ac97_vendor_id >> 16 ;
break ;
case AC97_VENDOR_ID2:
reg_val = azf_emulated_ac97_vendor_id & 0 xffff;
break ;
default :
unsupported = true ;
break ;
}
}
}
if (unsupported)
snd_azf3328_mixer_ac97_map_unsupported(chip, reg_ac97, "read" );
return reg_val;
}
static void
snd_azf3328_mixer_ac97_write(struct snd_ac97 *ac97,
unsigned short reg_ac97, unsigned short val)
{
const struct snd_azf3328 *chip = ac97->private_data;
unsigned short reg_azf = snd_azf3328_mixer_ac97_map_reg_idx(reg_ac97);
bool unsupported = false ;
dev_dbg(chip->card->dev,
"snd_azf3328_mixer_ac97_write reg_ac97 %u val %u\n" ,
reg_ac97, val);
if (reg_azf & AZF_AC97_REG_UNSUPPORTED)
unsupported = true ;
else {
if (reg_azf & AZF_AC97_REG_REAL_IO_WRITE)
snd_azf3328_mixer_outw(
chip,
reg_azf & AZF_REG_MASK,
val
);
else
if (reg_azf & AZF_AC97_REG_EMU_IO_WRITE) {
switch (reg_ac97) {
case AC97_REC_GAIN_MIC:
case AC97_POWERDOWN:
case AC97_EXTENDED_STATUS:
/*
* Silently swallow these writes .
* Since for most registers our card doesn ' t
* actually support a comparable feature ,
* this is exactly what we should do here .
* The AC97 layer ' s I / O caching probably
* automatically takes care of all the rest . . .
* ( remembers written values etc . )
*/
break ;
default :
unsupported = true ;
break ;
}
}
}
if (unsupported)
snd_azf3328_mixer_ac97_map_unsupported(chip, reg_ac97, "write" );
}
static int
snd_azf3328_mixer_new(struct snd_azf3328 *chip)
{
struct snd_ac97_bus *bus;
struct snd_ac97_template ac97;
static const struct snd_ac97_bus_ops ops = {
.write = snd_azf3328_mixer_ac97_write,
.read = snd_azf3328_mixer_ac97_read,
};
int rc;
memset(&ac97, 0 , sizeof (ac97));
ac97.scaps = AC97_SCAP_SKIP_MODEM
| AC97_SCAP_AUDIO /* we support audio! */
| AC97_SCAP_NO_SPDIF;
ac97.private_data = chip;
ac97.pci = chip->pci;
/*
* ALSA ' s AC97 layer has terrible init crackling issues ,
* unfortunately , and since it makes use of AC97_RESET ,
* there ' s no use trying to mute Master Playback proactively .
*/
rc = snd_ac97_bus(chip->card, 0 , &ops, NULL, &bus);
if (!rc)
rc = snd_ac97_mixer(bus, &ac97, &chip->ac97);
/*
* Make sure to complain loudly in case of AC97 init failure ,
* since failure may happen quite often ,
* due to this card being a very quirky AC97 " lookalike " .
*/
if (rc)
dev_err(chip->card->dev, "AC97 init failed, err %d!\n" , rc);
/* If we return an error here, then snd_card_free() should
* free up any ac97 codecs that got created , as well as the bus .
*/
return rc;
}
#else /* AZF_USE_AC97_LAYER */
static void
snd_azf3328_mixer_write_volume_gradually(const struct snd_azf3328 *chip,
unsigned reg,
unsigned char dst_vol_left,
unsigned char dst_vol_right,
int chan_sel, int delay
)
{
unsigned long portbase = chip->mixer_io + reg;
unsigned char curr_vol_left = 0 , curr_vol_right = 0 ;
int left_change = 0 , right_change = 0 ;
if (chan_sel & SET_CHAN_LEFT) {
curr_vol_left = inb(portbase + 1 );
/* take care of muting flag contained in left channel */
if (curr_vol_left & AZF_MUTE_BIT)
dst_vol_left |= AZF_MUTE_BIT;
else
dst_vol_left &= ~AZF_MUTE_BIT;
left_change = (curr_vol_left > dst_vol_left) ? -1 : 1 ;
}
if (chan_sel & SET_CHAN_RIGHT) {
curr_vol_right = inb(portbase + 0 );
right_change = (curr_vol_right > dst_vol_right) ? -1 : 1 ;
}
do {
if (left_change) {
if (curr_vol_left != dst_vol_left) {
curr_vol_left += left_change;
outb(curr_vol_left, portbase + 1 );
} else
left_change = 0 ;
}
if (right_change) {
if (curr_vol_right != dst_vol_right) {
curr_vol_right += right_change;
/* during volume change, the right channel is crackling
* somewhat more than the left channel , unfortunately .
* This seems to be a hardware issue. */
outb(curr_vol_right, portbase + 0 );
} else
right_change = 0 ;
}
if (delay)
mdelay(delay);
} while ((left_change) || (right_change));
}
/*
* general mixer element
*/
struct azf3328_mixer_reg {
unsigned reg;
unsigned int lchan_shift, rchan_shift;
unsigned int mask;
unsigned int invert: 1 ;
unsigned int stereo: 1 ;
unsigned int enum_c: 4 ;
};
#define COMPOSE_MIXER_REG(reg,lchan_shift,rchan_shift,mask,invert,stereo,enum_c) \
((reg) | (lchan_shift << 8 ) | (rchan_shift << 12 ) | \
(mask << 16 ) | \
(invert << 24 ) | \
(stereo << 25 ) | \
(enum_c << 26 ))
static void snd_azf3328_mixer_reg_decode(struct azf3328_mixer_reg *r, unsigned long val)
{
r->reg = val & 0 xff;
r->lchan_shift = (val >> 8 ) & 0 x0f;
r->rchan_shift = (val >> 12 ) & 0 x0f;
r->mask = (val >> 16 ) & 0 xff;
r->invert = (val >> 24 ) & 1 ;
r->stereo = (val >> 25 ) & 1 ;
r->enum_c = (val >> 26 ) & 0 x0f;
}
/*
* mixer switches / volumes
*/
#define AZF3328_MIXER_SWITCH(xname, reg, shift, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
.info = snd_azf3328_info_mixer, \
.get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
.private_value = COMPOSE_MIXER_REG(reg, shift, 0 , 0 x1, invert, 0 , 0 ), \
}
#define AZF3328_MIXER_VOL_STEREO(xname, reg, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
.info = snd_azf3328_info_mixer, \
.get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
.private_value = COMPOSE_MIXER_REG(reg, 8 , 0 , mask, invert, 1 , 0 ), \
}
#define AZF3328_MIXER_VOL_MONO(xname, reg, mask, is_right_chan) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
.info = snd_azf3328_info_mixer, \
.get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
.private_value = COMPOSE_MIXER_REG(reg, is_right_chan ? 0 : 8 , 0 , mask, 1 , 0 , 0 ), \
}
#define AZF3328_MIXER_VOL_SPECIAL(xname, reg, mask, shift, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
.info = snd_azf3328_info_mixer, \
.get = snd_azf3328_get_mixer, .put = snd_azf3328_put_mixer, \
.private_value = COMPOSE_MIXER_REG(reg, shift, 0 , mask, invert, 0 , 0 ), \
}
#define AZF3328_MIXER_ENUM(xname, reg, enum_c, shift) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
.info = snd_azf3328_info_mixer_enum, \
.get = snd_azf3328_get_mixer_enum, .put = snd_azf3328_put_mixer_enum, \
.private_value = COMPOSE_MIXER_REG(reg, shift, 0 , 0 , 0 , 0 , enum_c), \
}
static int
snd_azf3328_info_mixer(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
struct azf3328_mixer_reg reg;
snd_azf3328_mixer_reg_decode(®, kcontrol->private_value);
uinfo->type = reg.mask == 1 ?
SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = reg.stereo + 1 ;
uinfo->value.integer.min = 0 ;
uinfo->value.integer.max = reg.mask;
return 0 ;
}
static int
snd_azf3328_get_mixer(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol);
struct azf3328_mixer_reg reg;
u16 oreg, val;
snd_azf3328_mixer_reg_decode(®, kcontrol->private_value);
oreg = snd_azf3328_mixer_inw(chip, reg.reg);
val = (oreg >> reg.lchan_shift) & reg.mask;
if (reg.invert)
val = reg.mask - val;
ucontrol->value.integer.value[0 ] = val;
if (reg.stereo) {
val = (oreg >> reg.rchan_shift) & reg.mask;
if (reg.invert)
val = reg.mask - val;
ucontrol->value.integer.value[1 ] = val;
}
dev_dbg(chip->card->dev,
"get: %02x is %04x -> vol %02lx|%02lx (shift %02d|%02d, mask %02x, inv. %d, stereo %d)\n" ,
reg.reg, oreg,
ucontrol->value.integer.value[0 ], ucontrol->value.integer.value[1 ],
reg.lchan_shift, reg.rchan_shift, reg.mask, reg.invert, reg.stereo);
return 0 ;
}
static int
snd_azf3328_put_mixer(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol);
struct azf3328_mixer_reg reg;
u16 oreg, nreg, val;
snd_azf3328_mixer_reg_decode(®, kcontrol->private_value);
oreg = snd_azf3328_mixer_inw(chip, reg.reg);
val = ucontrol->value.integer.value[0 ] & reg.mask;
if (reg.invert)
val = reg.mask - val;
nreg = oreg & ~(reg.mask << reg.lchan_shift);
nreg |= (val << reg.lchan_shift);
if (reg.stereo) {
val = ucontrol->value.integer.value[1 ] & reg.mask;
if (reg.invert)
val = reg.mask - val;
nreg &= ~(reg.mask << reg.rchan_shift);
nreg |= (val << reg.rchan_shift);
}
if (reg.mask >= 0 x07) /* it's a volume control, so better take care */
snd_azf3328_mixer_write_volume_gradually(
chip, reg.reg, nreg >> 8 , nreg & 0 xff,
/* just set both channels, doesn't matter */
SET_CHAN_LEFT|SET_CHAN_RIGHT,
0 );
else
snd_azf3328_mixer_outw(chip, reg.reg, nreg);
dev_dbg(chip->card->dev,
"put: %02x to %02lx|%02lx, oreg %04x; shift %02d|%02d -> nreg %04x; after: %04x\n" ,
reg.reg, ucontrol->value.integer.value[0 ], ucontrol->value.integer.value[1 ],
oreg, reg.lchan_shift, reg.rchan_shift,
nreg, snd_azf3328_mixer_inw(chip, reg.reg));
return (nreg != oreg);
}
static int
snd_azf3328_info_mixer_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
static const char * const texts1[] = {
"Mic1" , "Mic2"
};
static const char * const texts2[] = {
"Mix" , "Mic"
};
static const char * const texts3[] = {
"Mic" , "CD" , "Video" , "Aux" ,
"Line" , "Mix" , "Mix Mono" , "Phone"
};
static const char * const texts4[] = {
"pre 3D" , "post 3D"
};
struct azf3328_mixer_reg reg;
const char * const *p = NULL;
snd_azf3328_mixer_reg_decode(®, kcontrol->private_value);
if (reg.reg == IDX_MIXER_ADVCTL2) {
switch (reg.lchan_shift) {
case 8 : /* modem out sel */
p = texts1;
break ;
case 9 : /* mono sel source */
p = texts2;
break ;
case 15 : /* PCM Out Path */
p = texts4;
break ;
}
} else if (reg.reg == IDX_MIXER_REC_SELECT)
p = texts3;
return snd_ctl_enum_info(uinfo,
(reg.reg == IDX_MIXER_REC_SELECT) ? 2 : 1 ,
reg.enum_c, p);
}
static int
snd_azf3328_get_mixer_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol);
struct azf3328_mixer_reg reg;
unsigned short val;
snd_azf3328_mixer_reg_decode(®, kcontrol->private_value);
val = snd_azf3328_mixer_inw(chip, reg.reg);
if (reg.reg == IDX_MIXER_REC_SELECT) {
ucontrol->value.enumerated.item[0 ] = (val >> 8 ) & (reg.enum_c - 1 );
ucontrol->value.enumerated.item[1 ] = (val >> 0 ) & (reg.enum_c - 1 );
} else
ucontrol->value.enumerated.item[0 ] = (val >> reg.lchan_shift) & (reg.enum_c - 1 );
dev_dbg(chip->card->dev,
"get_enum: %02x is %04x -> %d|%d (shift %02d, enum_c %d)\n" ,
reg.reg, val, ucontrol->value.enumerated.item[0 ], ucontrol->value.enumerated.item[1 ],
reg.lchan_shift, reg.enum_c);
return 0 ;
}
static int
snd_azf3328_put_mixer_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol);
struct azf3328_mixer_reg reg;
u16 oreg, nreg, val;
snd_azf3328_mixer_reg_decode(®, kcontrol->private_value);
oreg = snd_azf3328_mixer_inw(chip, reg.reg);
val = oreg;
if (reg.reg == IDX_MIXER_REC_SELECT) {
if (ucontrol->value.enumerated.item[0 ] > reg.enum_c - 1 U ||
ucontrol->value.enumerated.item[1 ] > reg.enum_c - 1 U)
return -EINVAL;
val = (ucontrol->value.enumerated.item[0 ] << 8 ) |
(ucontrol->value.enumerated.item[1 ] << 0 );
} else {
if (ucontrol->value.enumerated.item[0 ] > reg.enum_c - 1 U)
return -EINVAL;
val &= ~((reg.enum_c - 1 ) << reg.lchan_shift);
val |= (ucontrol->value.enumerated.item[0 ] << reg.lchan_shift);
}
snd_azf3328_mixer_outw(chip, reg.reg, val);
nreg = val;
dev_dbg(chip->card->dev,
"put_enum: %02x to %04x, oreg %04x\n" , reg.reg, val, oreg);
return (nreg != oreg);
}
static const struct snd_kcontrol_new snd_azf3328_mixer_controls[] = {
AZF3328_MIXER_SWITCH("Master Playback Switch" , IDX_MIXER_PLAY_MASTER, 15 , 1 ),
AZF3328_MIXER_VOL_STEREO("Master Playback Volume" , IDX_MIXER_PLAY_MASTER, 0 x1f, 1 ),
AZF3328_MIXER_SWITCH("PCM Playback Switch" , IDX_MIXER_WAVEOUT, 15 , 1 ),
AZF3328_MIXER_VOL_STEREO("PCM Playback Volume" ,
IDX_MIXER_WAVEOUT, 0 x1f, 1 ),
AZF3328_MIXER_SWITCH("PCM 3D Bypass Playback Switch" ,
IDX_MIXER_ADVCTL2, 7 , 1 ),
AZF3328_MIXER_SWITCH("FM Playback Switch" , IDX_MIXER_FMSYNTH, 15 , 1 ),
AZF3328_MIXER_VOL_STEREO("FM Playback Volume" , IDX_MIXER_FMSYNTH, 0 x1f, 1 ),
AZF3328_MIXER_SWITCH("CD Playback Switch" , IDX_MIXER_CDAUDIO, 15 , 1 ),
AZF3328_MIXER_VOL_STEREO("CD Playback Volume" , IDX_MIXER_CDAUDIO, 0 x1f, 1 ),
AZF3328_MIXER_SWITCH("Capture Switch" , IDX_MIXER_REC_VOLUME, 15 , 1 ),
AZF3328_MIXER_VOL_STEREO("Capture Volume" , IDX_MIXER_REC_VOLUME, 0 x0f, 0 ),
AZF3328_MIXER_ENUM("Capture Source" , IDX_MIXER_REC_SELECT, 8 , 0 ),
AZF3328_MIXER_SWITCH("Mic Playback Switch" , IDX_MIXER_MIC, 15 , 1 ),
AZF3328_MIXER_VOL_MONO("Mic Playback Volume" , IDX_MIXER_MIC, 0 x1f, 1 ),
AZF3328_MIXER_SWITCH("Mic Boost (+20dB)" , IDX_MIXER_MIC, 6 , 0 ),
AZF3328_MIXER_SWITCH("Line Playback Switch" , IDX_MIXER_LINEIN, 15 , 1 ),
AZF3328_MIXER_VOL_STEREO("Line Playback Volume" , IDX_MIXER_LINEIN, 0 x1f, 1 ),
AZF3328_MIXER_SWITCH("Beep Playback Switch" , IDX_MIXER_PCBEEP, 15 , 1 ),
AZF3328_MIXER_VOL_SPECIAL("Beep Playback Volume" , IDX_MIXER_PCBEEP, 0 x0f, 1 , 1 ),
AZF3328_MIXER_SWITCH("Video Playback Switch" , IDX_MIXER_VIDEO, 15 , 1 ),
AZF3328_MIXER_VOL_STEREO("Video Playback Volume" , IDX_MIXER_VIDEO, 0 x1f, 1 ),
AZF3328_MIXER_SWITCH("Aux Playback Switch" , IDX_MIXER_AUX, 15 , 1 ),
AZF3328_MIXER_VOL_STEREO("Aux Playback Volume" , IDX_MIXER_AUX, 0 x1f, 1 ),
AZF3328_MIXER_SWITCH("Modem Playback Switch" , IDX_MIXER_MODEMOUT, 15 , 1 ),
AZF3328_MIXER_VOL_MONO("Modem Playback Volume" , IDX_MIXER_MODEMOUT, 0 x1f, 1 ),
AZF3328_MIXER_SWITCH("Modem Capture Switch" , IDX_MIXER_MODEMIN, 15 , 1 ),
AZF3328_MIXER_VOL_MONO("Modem Capture Volume" , IDX_MIXER_MODEMIN, 0 x1f, 1 ),
AZF3328_MIXER_ENUM("Mic Select" , IDX_MIXER_ADVCTL2, 2 , 8 ),
AZF3328_MIXER_ENUM("Mono Output Select" , IDX_MIXER_ADVCTL2, 2 , 9 ),
AZF3328_MIXER_ENUM("PCM Output Route" , IDX_MIXER_ADVCTL2, 2 , 15 ), /* PCM Out Path, place in front since it controls *both* 3D and Bass/Treble! */
AZF3328_MIXER_VOL_SPECIAL("Tone Control - Treble" , IDX_MIXER_BASSTREBLE, 0 x07, 1 , 0 ),
AZF3328_MIXER_VOL_SPECIAL("Tone Control - Bass" , IDX_MIXER_BASSTREBLE, 0 x07, 9 , 0 ),
AZF3328_MIXER_SWITCH("3D Control - Switch" , IDX_MIXER_ADVCTL2, 13 , 0 ),
AZF3328_MIXER_VOL_SPECIAL("3D Control - Width" , IDX_MIXER_ADVCTL1, 0 x07, 1 , 0 ), /* "3D Width" */
AZF3328_MIXER_VOL_SPECIAL("3D Control - Depth" , IDX_MIXER_ADVCTL1, 0 x03, 8 , 0 ), /* "Hifi 3D" */
#if MIXER_TESTING
AZF3328_MIXER_SWITCH("0" , IDX_MIXER_ADVCTL2, 0 , 0 ),
AZF3328_MIXER_SWITCH("1" , IDX_MIXER_ADVCTL2, 1 , 0 ),
AZF3328_MIXER_SWITCH("2" , IDX_MIXER_ADVCTL2, 2 , 0 ),
AZF3328_MIXER_SWITCH("3" , IDX_MIXER_ADVCTL2, 3 , 0 ),
AZF3328_MIXER_SWITCH("4" , IDX_MIXER_ADVCTL2, 4 , 0 ),
AZF3328_MIXER_SWITCH("5" , IDX_MIXER_ADVCTL2, 5 , 0 ),
AZF3328_MIXER_SWITCH("6" , IDX_MIXER_ADVCTL2, 6 , 0 ),
AZF3328_MIXER_SWITCH("7" , IDX_MIXER_ADVCTL2, 7 , 0 ),
AZF3328_MIXER_SWITCH("8" , IDX_MIXER_ADVCTL2, 8 , 0 ),
AZF3328_MIXER_SWITCH("9" , IDX_MIXER_ADVCTL2, 9 , 0 ),
AZF3328_MIXER_SWITCH("10" , IDX_MIXER_ADVCTL2, 10 , 0 ),
AZF3328_MIXER_SWITCH("11" , IDX_MIXER_ADVCTL2, 11 , 0 ),
AZF3328_MIXER_SWITCH("12" , IDX_MIXER_ADVCTL2, 12 , 0 ),
AZF3328_MIXER_SWITCH("13" , IDX_MIXER_ADVCTL2, 13 , 0 ),
AZF3328_MIXER_SWITCH("14" , IDX_MIXER_ADVCTL2, 14 , 0 ),
AZF3328_MIXER_SWITCH("15" , IDX_MIXER_ADVCTL2, 15 , 0 ),
#endif
};
static const u16 snd_azf3328_init_values[][2 ] = {
{ IDX_MIXER_PLAY_MASTER, MIXER_MUTE_MASK|0 x1f1f },
{ IDX_MIXER_MODEMOUT, MIXER_MUTE_MASK|0 x1f1f },
{ IDX_MIXER_BASSTREBLE, 0 x0000 },
{ IDX_MIXER_PCBEEP, MIXER_MUTE_MASK|0 x1f1f },
{ IDX_MIXER_MODEMIN, MIXER_MUTE_MASK|0 x1f1f },
{ IDX_MIXER_MIC, MIXER_MUTE_MASK|0 x001f },
{ IDX_MIXER_LINEIN, MIXER_MUTE_MASK|0 x1f1f },
{ IDX_MIXER_CDAUDIO, MIXER_MUTE_MASK|0 x1f1f },
{ IDX_MIXER_VIDEO, MIXER_MUTE_MASK|0 x1f1f },
{ IDX_MIXER_AUX, MIXER_MUTE_MASK|0 x1f1f },
{ IDX_MIXER_WAVEOUT, MIXER_MUTE_MASK|0 x1f1f },
{ IDX_MIXER_FMSYNTH, MIXER_MUTE_MASK|0 x1f1f },
{ IDX_MIXER_REC_VOLUME, MIXER_MUTE_MASK|0 x0707 },
};
static int
snd_azf3328_mixer_new(struct snd_azf3328 *chip)
{
struct snd_card *card;
const struct snd_kcontrol_new *sw;
unsigned int idx;
int err;
if (snd_BUG_ON(!chip || !chip->card))
return -EINVAL;
card = chip->card;
/* mixer reset */
snd_azf3328_mixer_outw(chip, IDX_MIXER_RESET, 0 x0000);
/* mute and zero volume channels */
for (idx = 0 ; idx < ARRAY_SIZE(snd_azf3328_init_values); ++idx) {
snd_azf3328_mixer_outw(chip,
snd_azf3328_init_values[idx][0 ],
snd_azf3328_init_values[idx][1 ]);
}
/* add mixer controls */
sw = snd_azf3328_mixer_controls;
for (idx = 0 ; idx < ARRAY_SIZE(snd_azf3328_mixer_controls);
++idx, ++sw) {
err = snd_ctl_add(chip->card, snd_ctl_new1(sw, chip));
if (err < 0 )
return err;
}
snd_component_add(card, "AZF3328 mixer" );
strscpy(card->mixername, "AZF3328 mixer" );
return 0 ;
}
#endif /* AZF_USE_AC97_LAYER */
static void
snd_azf3328_codec_setfmt(struct snd_azf3328_codec_data *codec,
enum azf_freq_t bitrate,
unsigned int format_width,
unsigned int channels
)
{
unsigned long flags;
u16 val = 0 xff00;
u8 freq = 0 ;
switch (bitrate) {
case AZF_FREQ_4000: freq = SOUNDFORMAT_FREQ_SUSPECTED_4000; break ;
case AZF_FREQ_4800: freq = SOUNDFORMAT_FREQ_SUSPECTED_4800; break ;
case AZF_FREQ_5512:
/* the AZF3328 names it "5510" for some strange reason */
freq = SOUNDFORMAT_FREQ_5510; break ;
case AZF_FREQ_6620: freq = SOUNDFORMAT_FREQ_6620; break ;
case AZF_FREQ_8000: freq = SOUNDFORMAT_FREQ_8000; break ;
case AZF_FREQ_9600: freq = SOUNDFORMAT_FREQ_9600; break ;
case AZF_FREQ_11025: freq = SOUNDFORMAT_FREQ_11025; break ;
case AZF_FREQ_13240: freq = SOUNDFORMAT_FREQ_SUSPECTED_13240; break ;
case AZF_FREQ_16000: freq = SOUNDFORMAT_FREQ_16000; break ;
case AZF_FREQ_22050: freq = SOUNDFORMAT_FREQ_22050; break ;
case AZF_FREQ_32000: freq = SOUNDFORMAT_FREQ_32000; break ;
default :
pr_warn("azf3328: unknown bitrate %d, assuming 44.1kHz!\n" , bitrate);
fallthrough;
case AZF_FREQ_44100: freq = SOUNDFORMAT_FREQ_44100; break ;
case AZF_FREQ_48000: freq = SOUNDFORMAT_FREQ_48000; break ;
case AZF_FREQ_66200: freq = SOUNDFORMAT_FREQ_SUSPECTED_66200; break ;
}
/* val = 0xff07; 3m27.993s (65301Hz; -> 64000Hz???) hmm, 66120, 65967, 66123 */
/* val = 0xff09; 17m15.098s (13123,478Hz; -> 12000Hz???) hmm, 13237.2Hz? */
/* val = 0xff0a; 47m30.599s (4764,891Hz; -> 4800Hz???) yup, 4803Hz */
/* val = 0xff0c; 57m0.510s (4010,263Hz; -> 4000Hz???) yup, 4003Hz */
/* val = 0xff05; 5m11.556s (... -> 44100Hz) */
/* val = 0xff03; 10m21.529s (21872,463Hz; -> 22050Hz???) */
/* val = 0xff0f; 20m41.883s (10937,993Hz; -> 11025Hz???) */
/* val = 0xff0d; 41m23.135s (5523,600Hz; -> 5512Hz???) */
/* val = 0xff0e; 28m30.777s (8017Hz; -> 8000Hz???) */
val |= freq;
if (channels == 2 )
val |= SOUNDFORMAT_FLAG_2CHANNELS;
if (format_width == 16 )
val |= SOUNDFORMAT_FLAG_16BIT;
spin_lock_irqsave(codec->lock, flags);
/* set bitrate/format */
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_SOUNDFORMAT, val);
/* changing the bitrate/format settings switches off the
* audio output with an annoying click in case of 8 / 16 bit format change
* ( maybe shutting down DAC / ADC ? ) , thus immediately
* do some tweaking to reenable it and get rid of the clicking
* ( 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? */
/* do it for non-capture codecs only */
if (codec->type != AZF_CODEC_CAPTURE)
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
snd_azf3328_codec_inw(codec, IDX_IO_CODEC_DMA_FLAGS) |
DMA_RUN_SOMETHING1 |
DMA_RUN_SOMETHING2 |
SOMETHING_ALMOST_ALWAYS_SET |
DMA_EPILOGUE_SOMETHING |
DMA_SOMETHING_ELSE
);
spin_unlock_irqrestore(codec->lock, flags);
}
static inline void
snd_azf3328_codec_setfmt_lowpower(struct snd_azf3328_codec_data *codec
)
{
/* choose lowest frequency for low power consumption.
* While this will cause louder noise due to rather coarse frequency ,
* it should never matter since output should always
* get disabled properly when idle anyway. */
snd_azf3328_codec_setfmt(codec, AZF_FREQ_4000, 8 , 1 );
}
static void
snd_azf3328_ctrl_reg_6AH_update(struct snd_azf3328 *chip,
unsigned bitmask,
bool enable
)
{
bool do_mask = !enable;
if (do_mask)
chip->shadow_reg_ctrl_6AH |= bitmask;
else
chip->shadow_reg_ctrl_6AH &= ~bitmask;
dev_dbg(chip->card->dev,
"6AH_update mask 0x%04x do_mask %d: val 0x%04x\n" ,
bitmask, do_mask, chip->shadow_reg_ctrl_6AH);
snd_azf3328_ctrl_outw(chip, IDX_IO_6AH, chip->shadow_reg_ctrl_6AH);
}
static inline void
snd_azf3328_ctrl_enable_codecs(struct snd_azf3328 *chip, bool enable)
{
dev_dbg(chip->card->dev, "codec_enable %d\n" , enable);
/* no idea what exactly is being done here, but I strongly assume it's
* PM related */
snd_azf3328_ctrl_reg_6AH_update(
chip, IO_6A_PAUSE_PLAYBACK_BIT8, enable
);
}
static void
snd_azf3328_ctrl_codec_activity(struct snd_azf3328 *chip,
enum snd_azf3328_codec_type codec_type,
bool enable
)
{
struct snd_azf3328_codec_data *codec = &chip->codecs[codec_type];
bool need_change = (codec->running != enable);
dev_dbg(chip->card->dev,
"codec_activity: %s codec, enable %d, need_change %d\n" ,
codec->name, enable, need_change
);
if (need_change) {
static const struct {
enum snd_azf3328_codec_type other1;
enum snd_azf3328_codec_type other2;
} peer_codecs[3 ] =
{ { AZF_CODEC_CAPTURE, AZF_CODEC_I2S_OUT },
{ AZF_CODEC_PLAYBACK, AZF_CODEC_I2S_OUT },
{ AZF_CODEC_PLAYBACK, AZF_CODEC_CAPTURE } };
bool call_function;
if (enable)
/* if enable codec, call enable_codecs func
to enable codec supply... */
call_function = 1 ;
else {
/* ...otherwise call enable_codecs func
( which globally shuts down operation of codecs )
only in case the other codecs are currently
not active either! */
call_function =
((!chip->codecs[peer_codecs[codec_type].other1]
.running)
&& (!chip->codecs[peer_codecs[codec_type].other2]
.running));
}
if (call_function)
snd_azf3328_ctrl_enable_codecs(chip, enable);
/* ...and adjust clock, too
* (reduce noise and power consumption) */
if (!enable)
snd_azf3328_codec_setfmt_lowpower(codec);
codec->running = enable;
}
}
static void
snd_azf3328_codec_setdmaa(struct snd_azf3328 *chip,
struct snd_azf3328_codec_data *codec,
unsigned long addr,
unsigned int period_bytes,
unsigned int buffer_bytes
)
{
WARN_ONCE(period_bytes & 1 , "odd period length!?\n" );
WARN_ONCE(buffer_bytes != 2 * period_bytes,
"missed our input expectations! %u vs. %u\n" ,
buffer_bytes, period_bytes);
if (!codec->running) {
/* AZF3328 uses a two buffer pointer DMA transfer approach */
unsigned long flags;
/* width 32bit (prevent overflow): */
u32 area_length;
struct codec_setup_io {
u32 dma_start_1;
u32 dma_start_2;
u32 dma_lengths;
} __packed setup_io;
area_length = buffer_bytes/2 ;
setup_io.dma_start_1 = addr;
setup_io.dma_start_2 = addr+area_length;
dev_dbg(chip->card->dev,
"setdma: buffers %08x[%u] / %08x[%u], %u, %u\n" ,
setup_io.dma_start_1, area_length,
setup_io.dma_start_2, area_length,
period_bytes, buffer_bytes);
/* Hmm, are we really supposed to decrement this by 1??
Most definitely certainly not : configuring full length does
work properly ( i . e . likely better ) , and BTW we
violated possibly differing frame sizes with this . . .
area_length - - ; | * max . index * |
*/
/* build combined I/O buffer length word */
setup_io.dma_lengths = (area_length << 16 ) | (area_length);
spin_lock_irqsave(codec->lock, flags);
snd_azf3328_codec_outl_multi(
codec, IDX_IO_CODEC_DMA_START_1, &setup_io, 3
);
spin_unlock_irqrestore(codec->lock, flags);
}
}
static int
snd_azf3328_pcm_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_azf3328_codec_data *codec = runtime->private_data;
#if 0
unsigned int size = snd_pcm_lib_buffer_bytes(substream);
unsigned int count = snd_pcm_lib_period_bytes(substream);
#endif
codec->dma_base = runtime->dma_addr;
#if 0
snd_azf3328_codec_setfmt(codec,
runtime->rate,
snd_pcm_format_width(runtime->format),
runtime->channels);
snd_azf3328_codec_setdmaa(chip, codec,
runtime->dma_addr, count, size);
#endif
return 0 ;
}
static int
snd_azf3328_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_azf3328_codec_data *codec = runtime->private_data;
int result = 0 ;
u16 flags1;
bool previously_muted = false ;
bool is_main_mixer_playback_codec = (AZF_CODEC_PLAYBACK == codec->type);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
dev_dbg(chip->card->dev, "START PCM %s\n" , codec->name);
if (is_main_mixer_playback_codec) {
/* mute WaveOut (avoid clicking during setup) */
previously_muted =
snd_azf3328_mixer_mute_control_pcm(
chip, 1
);
}
snd_azf3328_codec_setfmt(codec,
runtime->rate,
snd_pcm_format_width(runtime->format),
runtime->channels);
spin_lock(codec->lock);
/* first, remember current value: */
flags1 = snd_azf3328_codec_inw(codec, IDX_IO_CODEC_DMA_FLAGS);
/* stop transfer */
flags1 &= ~DMA_RESUME;
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1);
/* FIXME: clear interrupts or what??? */
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_IRQTYPE, 0 xffff);
spin_unlock(codec->lock);
snd_azf3328_codec_setdmaa(chip, codec, runtime->dma_addr,
snd_pcm_lib_period_bytes(substream),
snd_pcm_lib_buffer_bytes(substream)
);
spin_lock(codec->lock);
#ifdef WIN9X
/* FIXME: enable playback/recording??? */
flags1 |= DMA_RUN_SOMETHING1 | DMA_RUN_SOMETHING2;
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1);
/* start transfer again */
/* FIXME: what is this value (0x0010)??? */
flags1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING;
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1);
#else /* NT4 */
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
0 x0000);
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
DMA_RUN_SOMETHING1);
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
DMA_RUN_SOMETHING1 |
DMA_RUN_SOMETHING2);
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
DMA_RESUME |
SOMETHING_ALMOST_ALWAYS_SET |
DMA_EPILOGUE_SOMETHING |
DMA_SOMETHING_ELSE);
#endif
spin_unlock(codec->lock);
snd_azf3328_ctrl_codec_activity(chip, codec->type, 1 );
if (is_main_mixer_playback_codec) {
/* now unmute WaveOut */
if (!previously_muted)
snd_azf3328_mixer_mute_control_pcm(
chip, 0
);
}
dev_dbg(chip->card->dev, "PCM STARTED %s\n" , codec->name);
break ;
case SNDRV_PCM_TRIGGER_RESUME:
dev_dbg(chip->card->dev, "PCM RESUME %s\n" , codec->name);
/* resume codec if we were active */
spin_lock(codec->lock);
if (codec->running)
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
snd_azf3328_codec_inw(
codec, IDX_IO_CODEC_DMA_FLAGS
) | DMA_RESUME
);
spin_unlock(codec->lock);
break ;
case SNDRV_PCM_TRIGGER_STOP:
dev_dbg(chip->card->dev, "PCM STOP %s\n" , codec->name);
if (is_main_mixer_playback_codec) {
/* mute WaveOut (avoid clicking during setup) */
previously_muted =
snd_azf3328_mixer_mute_control_pcm(
chip, 1
);
}
spin_lock(codec->lock);
/* first, remember current value: */
flags1 = snd_azf3328_codec_inw(codec, IDX_IO_CODEC_DMA_FLAGS);
/* stop transfer */
flags1 &= ~DMA_RESUME;
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1);
/* hmm, is this really required? we're resetting the same bit
* immediately thereafter... */
flags1 |= DMA_RUN_SOMETHING1;
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1);
flags1 &= ~DMA_RUN_SOMETHING1;
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS, flags1);
spin_unlock(codec->lock);
snd_azf3328_ctrl_codec_activity(chip, codec->type, 0 );
if (is_main_mixer_playback_codec) {
/* now unmute WaveOut */
if (!previously_muted)
snd_azf3328_mixer_mute_control_pcm(
chip, 0
);
}
dev_dbg(chip->card->dev, "PCM STOPPED %s\n" , codec->name);
break ;
case SNDRV_PCM_TRIGGER_SUSPEND:
dev_dbg(chip->card->dev, "PCM SUSPEND %s\n" , codec->name);
/* make sure codec is stopped */
snd_azf3328_codec_outw(codec, IDX_IO_CODEC_DMA_FLAGS,
snd_azf3328_codec_inw(
codec, IDX_IO_CODEC_DMA_FLAGS
) & ~DMA_RESUME
);
break ;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
WARN(1 , "FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n" );
break ;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
WARN(1 , "FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n" );
break ;
default :
WARN(1 , "FIXME: unknown trigger mode!\n" );
return -EINVAL;
}
return result;
}
static snd_pcm_uframes_t
snd_azf3328_pcm_pointer(struct snd_pcm_substream *substream
)
{
const struct snd_azf3328_codec_data *codec =
substream->runtime->private_data;
unsigned long result;
snd_pcm_uframes_t frmres;
result = snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_CURRPOS);
/* calculate offset */
#ifdef QUERY_HARDWARE
result -= snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_START_1);
#else
result -= codec->dma_base;
#endif
frmres = bytes_to_frames( substream->runtime, result);
dev_dbg(substream->pcm->card->dev, "%08li %s @ 0x%8lx, frames %8ld\n" ,
jiffies, codec->name, result, frmres);
return frmres;
}
/******************************************************************/
#ifdef SUPPORT_GAMEPORT
static inline void
snd_azf3328_gameport_irq_enable(struct snd_azf3328 *chip,
bool enable
)
{
snd_azf3328_io_reg_setb(
chip->game_io+IDX_GAME_HWCONFIG,
GAME_HWCFG_IRQ_ENABLE,
enable
);
}
static inline void
snd_azf3328_gameport_legacy_address_enable(struct snd_azf3328 *chip,
bool enable
)
{
snd_azf3328_io_reg_setb(
chip->game_io+IDX_GAME_HWCONFIG,
GAME_HWCFG_LEGACY_ADDRESS_ENABLE,
enable
);
}
static void
snd_azf3328_gameport_set_counter_frequency(struct snd_azf3328 *chip,
unsigned int freq_cfg
)
{
snd_azf3328_io_reg_setb(
chip->game_io+IDX_GAME_HWCONFIG,
0 x02,
(freq_cfg & 1 ) != 0
);
snd_azf3328_io_reg_setb(
chip->game_io+IDX_GAME_HWCONFIG,
0 x04,
(freq_cfg & 2 ) != 0
);
}
static inline void
snd_azf3328_gameport_axis_circuit_enable(struct snd_azf3328 *chip, bool enable)
{
snd_azf3328_ctrl_reg_6AH_update(
chip, IO_6A_SOMETHING2_GAMEPORT, enable
);
}
static inline void
snd_azf3328_gameport_interrupt(struct snd_azf3328 *chip)
{
/*
* skeleton handler only
* ( we do not want axis reading in interrupt handler - too much load ! )
*/
dev_dbg(chip->card->dev, "gameport irq\n" );
/* this should ACK the gameport IRQ properly, hopefully. */
snd_azf3328_game_inw(chip, IDX_GAME_AXIS_VALUE);
}
static int
snd_azf3328_gameport_open(struct gameport *gameport, int mode)
{
struct snd_azf3328 *chip = gameport_get_port_data(gameport);
int res;
dev_dbg(chip->card->dev, "gameport_open, mode %d\n" , mode);
switch (mode) {
case GAMEPORT_MODE_COOKED:
case GAMEPORT_MODE_RAW:
res = 0 ;
break ;
default :
res = -1 ;
break ;
}
snd_azf3328_gameport_set_counter_frequency(chip,
GAME_HWCFG_ADC_COUNTER_FREQ_STD);
snd_azf3328_gameport_axis_circuit_enable(chip, (res == 0 ));
return res;
}
static void
snd_azf3328_gameport_close(struct gameport *gameport)
{
struct snd_azf3328 *chip = gameport_get_port_data(gameport);
dev_dbg(chip->card->dev, "gameport_close\n" );
snd_azf3328_gameport_set_counter_frequency(chip,
GAME_HWCFG_ADC_COUNTER_FREQ_1_200);
snd_azf3328_gameport_axis_circuit_enable(chip, 0 );
}
static int
snd_azf3328_gameport_cooked_read(struct gameport *gameport,
int *axes,
int *buttons
)
{
struct snd_azf3328 *chip = gameport_get_port_data(gameport);
int i;
u8 val;
unsigned long flags;
if (snd_BUG_ON(!chip))
return 0 ;
spin_lock_irqsave(&chip->reg_lock, flags);
val = snd_azf3328_game_inb(chip, IDX_GAME_LEGACY_COMPATIBLE);
*buttons = (~(val) >> 4 ) & 0 xf;
/* ok, this one is a bit dirty: cooked_read is being polled by a timer,
* thus we ' re atomic and cannot actively wait in here
* ( which would be useful for us since it probably would be better
* to trigger a measurement in here , then wait a short amount of
* time until it ' s finished , then read values of _ this_ measurement ) .
*
* Thus we simply resort to reading values if they ' re available already
* and trigger the next measurement .
*/
val = snd_azf3328_game_inb(chip, IDX_GAME_AXES_CONFIG);
if (val & GAME_AXES_SAMPLING_READY) {
for (i = 0 ; i < ARRAY_SIZE(chip->axes); ++i) {
/* configure the axis to read */
val = (i << 4 ) | 0 x0f;
snd_azf3328_game_outb(chip, IDX_GAME_AXES_CONFIG, val);
chip->axes[i] = snd_azf3328_game_inw(
chip, IDX_GAME_AXIS_VALUE
);
}
}
/* trigger next sampling of axes, to be evaluated the next time we
* enter this function */
/* for some very, very strange reason we cannot enable
* Measurement Ready monitoring for all axes here ,
* at least not when only one joystick connected */
val = 0 x03; /* we're able to monitor axes 1 and 2 only */
snd_azf3328_game_outb(chip, IDX_GAME_AXES_CONFIG, val);
snd_azf3328_game_outw(chip, IDX_GAME_AXIS_VALUE, 0 xffff);
spin_unlock_irqrestore(&chip->reg_lock, flags);
for (i = 0 ; i < ARRAY_SIZE(chip->axes); i++) {
axes[i] = chip->axes[i];
if (axes[i] == 0 xffff)
axes[i] = -1 ;
}
dev_dbg(chip->card->dev, "cooked_read: axes %d %d %d %d buttons %d\n" ,
axes[0 ], axes[1 ], axes[2 ], axes[3 ], *buttons);
return 0 ;
}
static int
snd_azf3328_gameport(struct snd_azf3328 *chip, int dev)
{
struct gameport *gp;
chip->gameport = gp = gameport_allocate_port();
if (!gp) {
dev_err(chip->card->dev, "cannot alloc memory for gameport\n" );
return -ENOMEM;
}
gameport_set_name(gp, "AZF3328 Gameport" );
gameport_set_phys(gp, "pci%s/gameport0" , pci_name(chip->pci));
gameport_set_dev_parent(gp, &chip->pci->dev);
gp->io = chip->game_io;
gameport_set_port_data(gp, chip);
gp->open = snd_azf3328_gameport_open;
gp->close = snd_azf3328_gameport_close;
gp->fuzz = 16 ; /* seems ok */
gp->cooked_read = snd_azf3328_gameport_cooked_read;
/* DISABLE legacy address: we don't need it! */
snd_azf3328_gameport_legacy_address_enable(chip, 0 );
snd_azf3328_gameport_set_counter_frequency(chip,
GAME_HWCFG_ADC_COUNTER_FREQ_1_200);
snd_azf3328_gameport_axis_circuit_enable(chip, 0 );
gameport_register_port(chip->gameport);
return 0 ;
}
static void
snd_azf3328_gameport_free(struct snd_azf3328 *chip)
{
if (chip->gameport) {
gameport_unregister_port(chip->gameport);
chip->gameport = NULL;
}
snd_azf3328_gameport_irq_enable(chip, 0 );
}
#else
static inline int
snd_azf3328_gameport(struct snd_azf3328 *chip, int dev) { return -ENOSYS; }
static inline void
snd_azf3328_gameport_free(struct snd_azf3328 *chip) { }
static inline void
snd_azf3328_gameport_interrupt(struct snd_azf3328 *chip)
{
dev_warn(chip->card->dev, "huh, game port IRQ occurred!?\n" );
}
#endif /* SUPPORT_GAMEPORT */
/******************************************************************/
static inline void
snd_azf3328_irq_log_unknown_type(struct snd_azf3328 *chip, u8 which)
{
dev_dbg(chip->card->dev,
"unknown IRQ type (%x) occurred, please report!\n" ,
which);
}
static inline void
snd_azf3328_pcm_interrupt(struct snd_azf3328 *chip,
const struct snd_azf3328_codec_data *first_codec,
u8 status
)
{
u8 which;
enum snd_azf3328_codec_type codec_type;
const struct snd_azf3328_codec_data *codec = first_codec;
for (codec_type = AZF_CODEC_PLAYBACK;
codec_type <= AZF_CODEC_I2S_OUT;
++codec_type, ++codec) {
/* skip codec if there's no interrupt for it */
if (!(status & (1 << codec_type)))
continue ;
spin_lock(codec->lock);
which = snd_azf3328_codec_inb(codec, IDX_IO_CODEC_IRQTYPE);
/* ack all IRQ types immediately */
snd_azf3328_codec_outb(codec, IDX_IO_CODEC_IRQTYPE, which);
spin_unlock(codec->lock);
if (codec->substream) {
snd_pcm_period_elapsed(codec->substream);
dev_dbg(chip->card->dev, "%s period done (#%x), @ %x\n" ,
codec->name,
which,
snd_azf3328_codec_inl(
codec, IDX_IO_CODEC_DMA_CURRPOS));
} else
dev_warn(chip->card->dev, "irq handler problem!\n" );
if (which & IRQ_SOMETHING)
snd_azf3328_irq_log_unknown_type(chip, which);
}
}
static irqreturn_t
snd_azf3328_interrupt(int irq, void *dev_id)
{
struct snd_azf3328 *chip = dev_id;
u8 status;
static unsigned long irq_count;
status = snd_azf3328_ctrl_inb(chip, IDX_IO_IRQSTATUS);
/* fast path out, to ease interrupt sharing */
if (!(status &
(IRQ_PLAYBACK|IRQ_RECORDING|IRQ_I2S_OUT
|IRQ_GAMEPORT|IRQ_MPU401|IRQ_TIMER)
))
return IRQ_NONE; /* must be interrupt for another device */
dev_dbg(chip->card->dev,
"irq_count %ld! IDX_IO_IRQSTATUS %04x\n" ,
irq_count++ /* debug-only */,
status);
if (status & IRQ_TIMER) {
/* dev_dbg(chip->card->dev, "timer %ld\n",
snd_azf3328_codec_inl ( chip , IDX_IO_TIMER_VALUE )
& TIMER_VALUE_MASK
); */
if (chip->timer)
snd_timer_interrupt(chip->timer, chip->timer->sticks);
/* ACK timer */
spin_lock(&chip->reg_lock);
snd_azf3328_ctrl_outb(chip, IDX_IO_TIMER_VALUE + 3 , 0 x07);
spin_unlock(&chip->reg_lock);
dev_dbg(chip->card->dev, "timer IRQ\n" );
}
if (status & (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_I2S_OUT))
snd_azf3328_pcm_interrupt(chip, chip->codecs, status);
if (status & IRQ_GAMEPORT)
snd_azf3328_gameport_interrupt(chip);
/* MPU401 has less critical IRQ requirements
* than timer and playback/recording, right? */
if (status & IRQ_MPU401) {
snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
/* hmm, do we have to ack the IRQ here somehow?
* If so, then I don't know how yet... */
dev_dbg(chip->card->dev, "MPU401 IRQ\n" );
}
return IRQ_HANDLED;
}
/*****************************************************************/
/* as long as we think we have identical snd_pcm_hardware parameters
for playback , capture and i2s out , we can use the same physical struct
since the struct is simply being copied into a member .
*/
static const struct snd_pcm_hardware snd_azf3328_hardware =
{
/* FIXME!! Correct? */
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP_VALID,
.formats = SNDRV_PCM_FMTBIT_S8 |
SNDRV_PCM_FMTBIT_U8 |
SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_U16_LE,
.rates = SNDRV_PCM_RATE_5512 |
SNDRV_PCM_RATE_8000_48000 |
SNDRV_PCM_RATE_KNOT,
.rate_min = AZF_FREQ_4000,
.rate_max = AZF_FREQ_66200,
.channels_min = 1 ,
.channels_max = 2 ,
.buffer_bytes_max = (64 *1024 ),
.period_bytes_min = 1024 ,
.period_bytes_max = (32 *1024 ),
/* We simply have two DMA areas (instead of a list of descriptors
such as other cards ) ; I believe that this is a fixed hardware
attribute and there isn ' t much driver magic to be done to expand it .
Thus indicate that we have at least and at most 2 periods. */
.periods_min = 2 ,
.periods_max = 2 ,
/* FIXME: maybe that card actually has a FIFO?
* Hmm , it seems newer revisions do have one , but we still don ' t know
* its size... */
.fifo_size = 0 ,
};
static const unsigned int snd_azf3328_fixed_rates[] = {
AZF_FREQ_4000,
AZF_FREQ_4800,
AZF_FREQ_5512,
AZF_FREQ_6620,
AZF_FREQ_8000,
AZF_FREQ_9600,
AZF_FREQ_11025,
AZF_FREQ_13240,
AZF_FREQ_16000,
AZF_FREQ_22050,
AZF_FREQ_32000,
AZF_FREQ_44100,
AZF_FREQ_48000,
AZF_FREQ_66200
};
static const struct snd_pcm_hw_constraint_list snd_azf3328_hw_constraints_rates = {
.count = ARRAY_SIZE(snd_azf3328_fixed_rates),
.list = snd_azf3328_fixed_rates,
.mask = 0 ,
};
/*****************************************************************/
static int
snd_azf3328_pcm_open(struct snd_pcm_substream *substream,
enum snd_azf3328_codec_type codec_type
)
{
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_azf3328_codec_data *codec = &chip->codecs[codec_type];
codec->substream = substream;
/* same parameters for all our codecs - at least we think so... */
runtime->hw = snd_azf3328_hardware;
snd_pcm_hw_constraint_list(runtime, 0 , SNDRV_PCM_HW_PARAM_RATE,
&snd_azf3328_hw_constraints_rates);
runtime->private_data = codec;
return 0 ;
}
static int
snd_azf3328_pcm_playback_open(struct snd_pcm_substream *substream)
{
return snd_azf3328_pcm_open(substream, AZF_CODEC_PLAYBACK);
}
static int
snd_azf3328_pcm_capture_open(struct snd_pcm_substream *substream)
{
return snd_azf3328_pcm_open(substream, AZF_CODEC_CAPTURE);
}
static int
snd_azf3328_pcm_i2s_out_open(struct snd_pcm_substream *substream)
{
return snd_azf3328_pcm_open(substream, AZF_CODEC_I2S_OUT);
}
static int
snd_azf3328_pcm_close(struct snd_pcm_substream *substream
)
{
struct snd_azf3328_codec_data *codec =
substream->runtime->private_data;
codec->substream = NULL;
return 0 ;
}
/******************************************************************/
static const struct snd_pcm_ops snd_azf3328_playback_ops = {
.open = snd_azf3328_pcm_playback_open,
.close = snd_azf3328_pcm_close,
.prepare = snd_azf3328_pcm_prepare,
.trigger = snd_azf3328_pcm_trigger,
.pointer = snd_azf3328_pcm_pointer
};
static const struct snd_pcm_ops snd_azf3328_capture_ops = {
.open = snd_azf3328_pcm_capture_open,
.close = snd_azf3328_pcm_close,
.prepare = snd_azf3328_pcm_prepare,
.trigger = snd_azf3328_pcm_trigger,
.pointer = snd_azf3328_pcm_pointer
};
static const struct snd_pcm_ops snd_azf3328_i2s_out_ops = {
.open = snd_azf3328_pcm_i2s_out_open,
.close = snd_azf3328_pcm_close,
.prepare = snd_azf3328_pcm_prepare,
.trigger = snd_azf3328_pcm_trigger,
.pointer = snd_azf3328_pcm_pointer
};
static int
snd_azf3328_pcm(struct snd_azf3328 *chip)
{
/* pcm devices */
enum { AZF_PCMDEV_STD, AZF_PCMDEV_I2S_OUT, NUM_AZF_PCMDEVS };
struct snd_pcm *pcm;
int err;
err = snd_pcm_new(chip->card, "AZF3328 DSP" , AZF_PCMDEV_STD,
1 , 1 , &pcm);
if (err < 0 )
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
&snd_azf3328_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
&snd_azf3328_capture_ops);
pcm->private_data = chip;
pcm->info_flags = 0 ;
strscpy(pcm->name, chip->card->shortname);
/* same pcm object for playback/capture (see snd_pcm_new() above) */
chip->pcm[AZF_CODEC_PLAYBACK] = pcm;
chip->pcm[AZF_CODEC_CAPTURE] = pcm;
snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
64 *1024 , 64 *1024 );
err = snd_pcm_new(chip->card, "AZF3328 I2S OUT" , AZF_PCMDEV_I2S_OUT,
1 , 0 , &pcm);
if (err < 0 )
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
&snd_azf3328_i2s_out_ops);
pcm->private_data = chip;
pcm->info_flags = 0 ;
strscpy(pcm->name, chip->card->shortname);
chip->pcm[AZF_CODEC_I2S_OUT] = pcm;
snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
64 *1024 , 64 *1024 );
return 0 ;
}
/******************************************************************/
/*** NOTE: the physical timer resolution actually is 1024000 ticks per second
* * * ( probably derived from main crystal via a divider of 24 ) ,
* * * but announcing those attributes to user - space would make programs
* * * configure the timer to a 1 tick value , resulting in an absolutely fatal
* * * timer IRQ storm .
* * * Thus I chose to announce a down - scaled virtual timer to the outside and
* * * calculate real timer countdown values internally .
* * * ( the scale factor can be set via module parameter " seqtimer_scaling " ) .
***/
static int
snd_azf3328_timer_start(struct snd_timer *timer)
{
struct snd_azf3328 *chip;
unsigned long flags;
unsigned int delay;
chip = snd_timer_chip(timer);
delay = ((timer->sticks * seqtimer_scaling) - 1 ) & TIMER_VALUE_MASK;
if (delay < 49 ) {
/* uhoh, that's not good, since user-space won't know about
* this timing tweak
* (we need to do it to avoid a lockup, though) */
dev_dbg(chip->card->dev, "delay was too low (%d)!\n" , delay);
delay = 49 ; /* minimum time is 49 ticks */
}
dev_dbg(chip->card->dev, "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);
spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0 ;
}
static int
snd_azf3328_timer_stop(struct snd_timer *timer)
{
struct snd_azf3328 *chip;
unsigned long flags;
chip = snd_timer_chip(timer);
spin_lock_irqsave(&chip->reg_lock, flags);
/* disable timer countdown and interrupt */
/* Hmm, should we write TIMER_IRQ_ACK here?
YES indeed , otherwise a rogue timer operation - which prompts
ALSA ( ? ) to call repeated stop ( ) in vain , but NOT start ( ) -
will never end ( value 0 x03 is kept shown in control byte ) .
Simply manually poking 0 x04 _ once_ immediately successfully stops
the hardware/ALSA interrupt activity. */
snd_azf3328_ctrl_outb(chip, IDX_IO_TIMER_VALUE + 3 , 0 x04);
spin_unlock_irqrestore(&chip->reg_lock, flags);
return 0 ;
}
static int
snd_azf3328_timer_precise_resolution(struct snd_timer *timer,
unsigned long *num, unsigned long *den)
{
*num = 1 ;
*den = 1024000 / seqtimer_scaling;
return 0 ;
}
static struct snd_timer_hardware snd_azf3328_timer_hw = {
.flags = SNDRV_TIMER_HW_AUTO,
.resolution = 977 , /* 1000000/1024000 = 0.9765625us */
.ticks = 1024000 , /* max tick count, defined by the value register; actually it's not 1024000, but 1048576, but we don't care */
.start = snd_azf3328_timer_start,
.stop = snd_azf3328_timer_stop,
.precise_resolution = snd_azf3328_timer_precise_resolution,
};
static int
snd_azf3328_timer(struct snd_azf3328 *chip, int device)
{
struct snd_timer *timer = NULL;
struct snd_timer_id tid;
int err;
tid.dev_class = SNDRV_TIMER_CLASS_CARD;
tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
tid.card = chip->card->number;
tid.device = device;
tid.subdevice = 0 ;
snd_azf3328_timer_hw.resolution *= seqtimer_scaling;
snd_azf3328_timer_hw.ticks /= seqtimer_scaling;
err = snd_timer_new(chip->card, "AZF3328" , &tid, &timer);
if (err < 0 )
goto out;
strscpy(timer->name, "AZF3328 timer" );
timer->private_data = chip;
timer->hw = snd_azf3328_timer_hw;
chip->timer = timer;
snd_azf3328_timer_stop(timer);
err = 0 ;
out:
return err;
}
/******************************************************************/
static void
snd_azf3328_free(struct snd_card *card)
{
struct snd_azf3328 *chip = card->private_data;
snd_azf3328_mixer_reset(chip);
snd_azf3328_timer_stop(chip->timer);
snd_azf3328_gameport_free(chip);
}
#if 0
/* check whether a bit can be modified */
static void
snd_azf3328_test_bit(unsigned unsigned reg, int bit)
{
unsigned char val, valoff, valon;
val = inb(reg);
outb(val & ~(1 << bit), reg);
valoff = inb(reg);
outb(val|(1 << bit), reg);
valon = inb(reg);
outb(val, reg);
printk(KERN_DEBUG "reg %04x bit %d: %02x %02x %02x\n" ,
reg, bit, val, valoff, valon
);
}
#endif
static inline void
snd_azf3328_debug_show_ports(const struct snd_azf3328 *chip)
{
u16 tmp;
dev_dbg(chip->card->dev,
"ctrl_io 0x%lx, game_io 0x%lx, mpu_io 0x%lx, "
"opl3_io 0x%lx, mixer_io 0x%lx, irq %d\n" ,
chip->ctrl_io, chip->game_io, chip->mpu_io,
chip->opl3_io, chip->mixer_io, chip->irq);
dev_dbg(chip->card->dev,
"game %02x %02x %02x %02x %02x %02x\n" ,
snd_azf3328_game_inb(chip, 0 ),
snd_azf3328_game_inb(chip, 1 ),
snd_azf3328_game_inb(chip, 2 ),
snd_azf3328_game_inb(chip, 3 ),
snd_azf3328_game_inb(chip, 4 ),
snd_azf3328_game_inb(chip, 5 ));
for (tmp = 0 ; tmp < 0 x07; tmp += 1 )
dev_dbg(chip->card->dev,
"mpu_io 0x%04x\n" , inb(chip->mpu_io + tmp));
for (tmp = 0 ; tmp <= 0 x07; tmp += 1 )
dev_dbg(chip->card->dev,
"0x%02x: game200 0x%04x, game208 0x%04x\n" ,
tmp, inb(0 x200 + tmp), inb(0 x208 + tmp));
for (tmp = 0 ; tmp <= 0 x01; tmp += 1 )
dev_dbg(chip->card->dev,
"0x%02x: mpu300 0x%04x, mpu310 0x%04x, mpu320 0x%04x, "
"mpu330 0x%04x opl388 0x%04x opl38c 0x%04x\n" ,
tmp,
inb(0 x300 + tmp),
inb(0 x310 + tmp),
inb(0 x320 + tmp),
inb(0 x330 + tmp),
inb(0 x388 + tmp),
inb(0 x38c + tmp));
for (tmp = 0 ; tmp < AZF_IO_SIZE_CTRL; tmp += 2 )
dev_dbg(chip->card->dev,
"ctrl 0x%02x: 0x%04x\n" ,
tmp, snd_azf3328_ctrl_inw(chip, tmp));
for (tmp = 0 ; tmp < AZF_IO_SIZE_MIXER; tmp += 2 )
dev_dbg(chip->card->dev,
"mixer 0x%02x: 0x%04x\n" ,
tmp, snd_azf3328_mixer_inw(chip, tmp));
}
static int
snd_azf3328_create(struct snd_card *card,
struct pci_dev *pci,
unsigned long device_type)
{
struct snd_azf3328 *chip = card->private_data;
int err;
u8 dma_init;
enum snd_azf3328_codec_type codec_type;
struct snd_azf3328_codec_data *codec_setup;
err = pcim_enable_device(pci);
if (err < 0 )
return err;
spin_lock_init(&chip->reg_lock);
chip->card = card;
chip->pci = pci;
chip->irq = -1 ;
/* check if we can restrict PCI DMA transfers to 24 bits */
if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(24 ))) {
dev_err(card->dev,
"architecture does not support 24bit PCI busmaster DMA\n"
);
return -ENXIO;
}
err = pcim_request_all_regions(pci, "Aztech AZF3328" );
if (err < 0 )
return err;
chip->ctrl_io = pci_resource_start(pci, 0 );
chip->game_io = pci_resource_start(pci, 1 );
chip->mpu_io = pci_resource_start(pci, 2 );
chip->opl3_io = pci_resource_start(pci, 3 );
chip->mixer_io = pci_resource_start(pci, 4 );
codec_setup = &chip->codecs[AZF_CODEC_PLAYBACK];
codec_setup->io_base = chip->ctrl_io + AZF_IO_OFFS_CODEC_PLAYBACK;
codec_setup->lock = &chip->reg_lock;
codec_setup->type = AZF_CODEC_PLAYBACK;
codec_setup->name = "PLAYBACK" ;
codec_setup = &chip->codecs[AZF_CODEC_CAPTURE];
codec_setup->io_base = chip->ctrl_io + AZF_IO_OFFS_CODEC_CAPTURE;
codec_setup->lock = &chip->reg_lock;
codec_setup->type = AZF_CODEC_CAPTURE;
codec_setup->name = "CAPTURE" ;
codec_setup = &chip->codecs[AZF_CODEC_I2S_OUT];
codec_setup->io_base = chip->ctrl_io + AZF_IO_OFFS_CODEC_I2S_OUT;
codec_setup->lock = &chip->reg_lock;
codec_setup->type = AZF_CODEC_I2S_OUT;
codec_setup->name = "I2S_OUT" ;
if (devm_request_irq(&pci->dev, pci->irq, snd_azf3328_interrupt,
IRQF_SHARED, KBUILD_MODNAME, chip)) {
dev_err(card->dev, "unable to grab IRQ %d\n" , pci->irq);
return -EBUSY;
}
chip->irq = pci->irq;
card->sync_irq = chip->irq;
card->private_free = snd_azf3328_free;
pci_set_master(pci);
snd_azf3328_debug_show_ports(chip);
/* create mixer interface & switches */
err = snd_azf3328_mixer_new(chip);
if (err < 0 )
return err;
/* standard codec init stuff */
/* default DMA init value */
dma_init = DMA_RUN_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE;
for (codec_type = AZF_CODEC_PLAYBACK;
codec_type <= AZF_CODEC_I2S_OUT; ++codec_type) {
struct snd_azf3328_codec_data *codec =
&chip->codecs[codec_type];
/* shutdown codecs to reduce power / noise */
/* have ...ctrl_codec_activity() act properly */
codec->running = true ;
snd_azf3328_ctrl_codec_activity(chip, codec_type, 0 );
spin_lock_irq(codec->lock);
snd_azf3328_codec_outb(codec, IDX_IO_CODEC_DMA_FLAGS,
dma_init);
spin_unlock_irq(codec->lock);
}
return 0 ;
}
static int
__snd_azf3328_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
{
static int dev;
struct snd_card *card;
struct snd_azf3328 *chip;
struct snd_opl3 *opl3;
int err;
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
dev++;
return -ENOENT;
}
err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
sizeof (*chip), &card);
if (err < 0 )
return err;
chip = card->private_data;
strscpy(card->driver, "AZF3328" );
strscpy(card->shortname, "Aztech AZF3328 (PCI168)" );
err = snd_azf3328_create(card, pci, pci_id->driver_data);
if (err < 0 )
return err;
/* chose to use MPU401_HW_AZT2320 ID instead of MPU401_HW_MPU401,
since our hardware ought to be similar, thus use same ID. */
err = snd_mpu401_uart_new(
card, 0 ,
MPU401_HW_AZT2320, chip->mpu_io,
MPU401_INFO_INTEGRATED | MPU401_INFO_IRQ_HOOK,
-1 , &chip->rmidi
);
if (err < 0 ) {
dev_err(card->dev, "no MPU-401 device at 0x%lx?\n" ,
chip->mpu_io
);
return err;
}
err = snd_azf3328_timer(chip, 0 );
if (err < 0 )
return err;
err = snd_azf3328_pcm(chip);
if (err < 0 )
return err;
if (snd_opl3_create(card, chip->opl3_io, chip->opl3_io+2 ,
OPL3_HW_AUTO, 1 , &opl3) < 0 ) {
dev_err(card->dev, "no OPL3 device at 0x%lx-0x%lx?\n" ,
chip->opl3_io, chip->opl3_io+2
);
} else {
/* need to use IDs 1, 2 since ID 0 is snd_azf3328_timer above */
err = snd_opl3_timer_new(opl3, 1 , 2 );
if (err < 0 )
return err;
err = snd_opl3_hwdep_new(opl3, 0 , 1 , NULL);
if (err < 0 )
return err;
opl3->private_data = chip;
}
sprintf(card->longname, "%s at 0x%lx, irq %i" ,
card->shortname, chip->ctrl_io, chip->irq);
err = snd_card_register(card);
if (err < 0 )
return err;
#ifdef MODULE
dev_info(card->dev,
"Sound driver for Aztech AZF3328-based soundcards such as PCI168.\n" );
dev_info(card->dev,
"Hardware was completely undocumented, unfortunately.\n" );
dev_info(card->dev,
"Feel free to contact andi AT lisas.de for bug reports etc.!\n" );
dev_info(card->dev,
"User-scalable sequencer timer set to %dHz (1024000Hz / %d).\n" ,
1024000 / seqtimer_scaling, seqtimer_scaling);
#endif
snd_azf3328_gameport(chip, dev);
pci_set_drvdata(pci, card);
dev++;
return 0 ;
}
static int
snd_azf3328_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
{
return snd_card_free_on_error(&pci->dev, __snd_azf3328_probe(pci, pci_id));
}
static inline void
snd_azf3328_suspend_regs(const struct snd_azf3328 *chip,
unsigned long io_addr, unsigned count, u32 *saved_regs)
{
unsigned reg;
for (reg = 0 ; reg < count; ++reg) {
*saved_regs = inl(io_addr);
dev_dbg(chip->card->dev, "suspend: io 0x%04lx: 0x%08x\n" ,
io_addr, *saved_regs);
++saved_regs;
io_addr += sizeof (*saved_regs);
}
}
static inline void
snd_azf3328_resume_regs(const struct snd_azf3328 *chip,
const u32 *saved_regs,
unsigned long io_addr,
unsigned count
)
{
unsigned reg;
for (reg = 0 ; reg < count; ++reg) {
outl(*saved_regs, io_addr);
dev_dbg(chip->card->dev,
"resume: io 0x%04lx: 0x%08x --> 0x%08x\n" ,
io_addr, *saved_regs, inl(io_addr));
++saved_regs;
io_addr += sizeof (*saved_regs);
}
}
static inline void
snd_azf3328_suspend_ac97(struct snd_azf3328 *chip)
{
#ifdef AZF_USE_AC97_LAYER
snd_ac97_suspend(chip->ac97);
#else
snd_azf3328_suspend_regs(chip, chip->mixer_io,
ARRAY_SIZE(chip->saved_regs_mixer), chip->saved_regs_mixer);
/* make sure to disable master volume etc. to prevent looping sound */
snd_azf3328_mixer_mute_control_master(chip, 1 );
snd_azf3328_mixer_mute_control_pcm(chip, 1 );
#endif /* AZF_USE_AC97_LAYER */
}
static inline void
snd_azf3328_resume_ac97(const struct snd_azf3328 *chip)
{
#ifdef AZF_USE_AC97_LAYER
snd_ac97_resume(chip->ac97);
#else
snd_azf3328_resume_regs(chip, chip->saved_regs_mixer, chip->mixer_io,
ARRAY_SIZE(chip->saved_regs_mixer));
/* unfortunately with 32bit transfers, IDX_MIXER_PLAY_MASTER (0x02)
and IDX_MIXER_RESET ( offset 0 x00 ) get touched at the same time ,
resulting in a mixer reset condition persisting until _ after_
master vol was restored. Thus master vol needs an extra restore. */
outw(((u16 *)chip->saved_regs_mixer)[1 ], chip->mixer_io + 2 );
#endif /* AZF_USE_AC97_LAYER */
}
static int
snd_azf3328_suspend(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct snd_azf3328 *chip = card->private_data;
u16 *saved_regs_ctrl_u16;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
snd_azf3328_suspend_ac97(chip);
snd_azf3328_suspend_regs(chip, chip->ctrl_io,
ARRAY_SIZE(chip->saved_regs_ctrl), chip->saved_regs_ctrl);
/* manually store the one currently relevant write-only reg, too */
saved_regs_ctrl_u16 = (u16 *)chip->saved_regs_ctrl;
saved_regs_ctrl_u16[IDX_IO_6AH / 2 ] = chip->shadow_reg_ctrl_6AH;
snd_azf3328_suspend_regs(chip, chip->game_io,
ARRAY_SIZE(chip->saved_regs_game), chip->saved_regs_game);
snd_azf3328_suspend_regs(chip, chip->mpu_io,
ARRAY_SIZE(chip->saved_regs_mpu), chip->saved_regs_mpu);
snd_azf3328_suspend_regs(chip, chip->opl3_io,
ARRAY_SIZE(chip->saved_regs_opl3), chip->saved_regs_opl3);
return 0 ;
}
static int
snd_azf3328_resume(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
const struct snd_azf3328 *chip = card->private_data;
snd_azf3328_resume_regs(chip, chip->saved_regs_game, chip->game_io,
ARRAY_SIZE(chip->saved_regs_game));
snd_azf3328_resume_regs(chip, chip->saved_regs_mpu, chip->mpu_io,
ARRAY_SIZE(chip->saved_regs_mpu));
snd_azf3328_resume_regs(chip, chip->saved_regs_opl3, chip->opl3_io,
ARRAY_SIZE(chip->saved_regs_opl3));
snd_azf3328_resume_ac97(chip);
snd_azf3328_resume_regs(chip, chip->saved_regs_ctrl, chip->ctrl_io,
ARRAY_SIZE(chip->saved_regs_ctrl));
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0 ;
}
static DEFINE_SIMPLE_DEV_PM_OPS(snd_azf3328_pm, snd_azf3328_suspend, snd_azf3328_resume);
static struct pci_driver azf3328_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_azf3328_ids,
.probe = snd_azf3328_probe,
.driver = {
.pm = &snd_azf3328_pm,
},
};
module_pci_driver(azf3328_driver);
Messung V0.5 in Prozent C=94 H=97 G=95
¤ Dauer der Verarbeitung: 0.67 Sekunden
(vorverarbeitet am 2026-09-29)
¤
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