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authorAndreas Mohr <andi@lisas.de>2008-05-16 12:18:29 +0200
committerJaroslav Kysela <perex@perex.cz>2008-05-19 13:19:19 +0200
commit02330fbaaded5b603cba112e4bbf62cdadec159a (patch)
tree90895cb270106d00bbc30a3f15afe91d07795ee3 /sound/pci
parentf99a633a151686a599413bef758253dfd04887d1 (diff)
[ALSA] PCI168 snd-azt3328 Linux driver: another huge update
- figured out 'Digital(ly) Enhanced Game Port' functionality, implemented support for it (eliminating gameport polling overhead) - removed optional joystick activation, gameport now enabled unconditionally, since we now support it via the PCI I/O space, not via conflict-prone legacy I/O (which I was thus able to DISABLE now)! - fix playback bug (a muted wave output would get unmuted upon start of playback, of course this is not what we want, thus remember mute state) - implement partial power management: when idle, lower clock rate and disable codec (reduced noise!), and disable gameport circuit when unused - instantiate OPL3 timer, too - much better implementation of snd_azf3328_mixer_write_volume_gradually() - slightly optimized interrupt handling - lots of cleanup This time, I also found a way to verify proper OPL3 operation via MIDI file playback (emulation via synth hardware). Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/azt3328.c1192
-rw-r--r--sound/pci/azt3328.h197
2 files changed, 968 insertions, 421 deletions
diff --git a/sound/pci/azt3328.c b/sound/pci/azt3328.c
index 5f63af6b88a2..b832333c3023 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, 2006, 2007 by Andreas Mohr <andi AT lisas.de>
+ * Copyright (C) 2002, 2005 - 2008 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),
@@ -35,9 +35,20 @@
* (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) has the following features:
+ * 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 80dB)
* Note that "conformant" != "compliant"!! this chip's mixer register layout
* *differs* from the standard AC97 layout:
@@ -48,21 +59,28 @@
* 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.
- * - builtin genuine OPL3
+ * - builtin genuine OPL3 - verified to work fine, 20080506
* - full duplex 16bit playback/record at independent sampling rate
- * - MPU401 (+ legacy address support) FIXME: how to enable legacy addr??
+ * - MPU401 (+ legacy address support, claimed by one official spec sheet)
+ * FIXME: how to enable legacy addr??
* - game port (legacy address support)
- * - builtin 3D enhancement (said to be YAMAHA Ymersion)
* - builtin DirectInput support, helps reduce CPU overhead (interrupt-driven
- * features supported)
+ * features supported). - See common term "Digital Enhanced Game Port"...
+ * (probably DirectInput 3.0 spec - confirm)
+ * - builtin 3D enhancement (said to be YAMAHA Ymersion)
* - built-in General DirectX timer having a 20 bits counter
* with 1us resolution (see below!)
- * - I2S serial port for external DAC
+ * - I2S serial output port for external DAC
* - supports 33MHz 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
* required for Microsoft's logo compliance (FIXME: where?)
+ * At least the Trident 4D 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 0x80. 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
*
* Note that this driver now is actually *better* than the Windows driver,
@@ -74,6 +92,24 @@
* - "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 (70W --> 90W!)
+ * 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.
@@ -87,6 +123,8 @@
* 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, preferrably one that isn't shared
* too much (this helps a lot, but not completely!)
* - get rid of PCI VGA card, use AGP instead
@@ -94,18 +132,23 @@
* - 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, not fully tested recently
+ * - full-duplex might *still* be problematic, however a recent test was fine
* - (non-bug) "Bass/Treble or 3D settings don't work" - they do get evaluated
* if you set PCM output switch to "pre 3D" instead of "post 3D".
* 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
* - test MPU401 MIDI playback etc.
- * - add some power micro-management (disable various units of the card
- * as long as they're unused). However this requires I/O ports which I
+ * - add more power micro-management (disable various units of the card
+ * as long as they're unused). 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...
@@ -113,6 +156,7 @@
* - 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 <asm/io.h>
@@ -138,7 +182,7 @@ MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{Aztech,AZF3328}}");
#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
-#define SUPPORT_JOYSTICK 1
+#define SUPPORT_GAMEPORT 1
#endif
#define DEBUG_MISC 0
@@ -147,13 +191,14 @@ MODULE_SUPPORTED_DEVICE("{{Aztech,AZF3328}}");
#define DEBUG_PLAY_REC 0
#define DEBUG_IO 0
#define DEBUG_TIMER 0
+#define DEBUG_GAME 0
#define MIXER_TESTING 0
#if DEBUG_MISC
#define snd_azf3328_dbgmisc(format, args...) printk(KERN_ERR format, ##args)
#else
#define snd_azf3328_dbgmisc(format, args...)
-#endif
+#endif
#if DEBUG_CALLS
#define snd_azf3328_dbgcalls(format, args...) printk(format, ##args)
@@ -163,25 +208,31 @@ MODULE_SUPPORTED_DEVICE("{{Aztech,AZF3328}}");
#define snd_azf3328_dbgcalls(format, args...)
#define snd_azf3328_dbgcallenter()
#define snd_azf3328_dbgcallleave()
-#endif
+#endif
#if DEBUG_MIXER
#define snd_azf3328_dbgmixer(format, args...) printk(format, ##args)
#else
#define snd_azf3328_dbgmixer(format, args...)
-#endif
+#endif
#if DEBUG_PLAY_REC
#define snd_azf3328_dbgplay(format, args...) printk(KERN_ERR format, ##args)
#else
#define snd_azf3328_dbgplay(format, args...)
-#endif
+#endif
#if DEBUG_MISC
#define snd_azf3328_dbgtimer(format, args...) printk(KERN_ERR format, ##args)
#else
#define snd_azf3328_dbgtimer(format, args...)
-#endif
+#endif
+
+#if DEBUG_GAME
+#define snd_azf3328_dbggame(format, args...) printk(KERN_ERR format, ##args)
+#else
+#define snd_azf3328_dbggame(format, args...)
+#endif
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
module_param_array(index, int, NULL, 0444);
@@ -195,39 +246,44 @@ static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card *
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable AZF3328 soundcard.");
-#ifdef SUPPORT_JOYSTICK
-static int joystick[SNDRV_CARDS];
-module_param_array(joystick, bool, NULL, 0444);
-MODULE_PARM_DESC(joystick, "Enable joystick for AZF3328 soundcard.");
-#endif
-
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.");
+struct snd_azf3328_audio_stream {
+ struct snd_pcm_substream *substream;
+ int enabled;
+ int running;
+ unsigned long portbase;
+};
+
+enum snd_azf3328_stream_index {
+ AZF_PLAYBACK = 0,
+ AZF_CAPTURE = 1,
+};
+
struct snd_azf3328 {
/* often-used fields towards beginning, then grouped */
- unsigned long codec_port;
- unsigned long io2_port;
- unsigned long mpu_port;
- unsigned long synth_port;
- unsigned long mixer_port;
+
+ unsigned long codec_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;
- struct snd_pcm_substream *playback_substream;
- struct snd_pcm_substream *capture_substream;
- unsigned int is_playing;
- unsigned int is_recording;
+ struct snd_azf3328_audio_stream audio_stream[2];
struct snd_card *card;
struct snd_rawmidi *rmidi;
-#ifdef SUPPORT_JOYSTICK
+#ifdef SUPPORT_GAMEPORT
struct gameport *gameport;
+ int axes[4];
#endif
struct pci_dev *pci;
@@ -236,10 +292,10 @@ struct snd_azf3328 {
#ifdef CONFIG_PM
/* register value containers for power management
* Note: not always full I/O range preserved (just like Win driver!) */
- u16 saved_regs_codec [AZF_IO_SIZE_CODEC_PM / 2];
- u16 saved_regs_io2 [AZF_IO_SIZE_IO2_PM / 2];
- u16 saved_regs_mpu [AZF_IO_SIZE_MPU_PM / 2];
- u16 saved_regs_synth[AZF_IO_SIZE_SYNTH_PM / 2];
+ u16 saved_regs_codec[AZF_IO_SIZE_CODEC_PM / 2];
+ u16 saved_regs_game [AZF_IO_SIZE_GAME_PM / 2];
+ u16 saved_regs_mpu [AZF_IO_SIZE_MPU_PM / 2];
+ u16 saved_regs_opl3 [AZF_IO_SIZE_OPL3_PM / 2];
u16 saved_regs_mixer[AZF_IO_SIZE_MIXER_PM / 2];
#endif
};
@@ -252,126 +308,181 @@ static const struct pci_device_id snd_azf3328_ids[] = {
MODULE_DEVICE_TABLE(pci, snd_azf3328_ids);
+
+static int
+snd_azf3328_io_reg_setb(unsigned reg, u8 mask, int do_set)
+{
+ 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 int
+snd_azf3328_io_reg_setw(unsigned reg, u16 mask, int do_set)
+{
+ u16 prev = inw(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 */
+ outw(new, reg);
+ if (new != prev)
+ return 1;
+
+ return 0;
+}
+
static inline void
-snd_azf3328_codec_outb(const struct snd_azf3328 *chip, int reg, u8 value)
+snd_azf3328_codec_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value)
{
- outb(value, chip->codec_port + reg);
+ outb(value, chip->codec_io + reg);
}
static inline u8
-snd_azf3328_codec_inb(const struct snd_azf3328 *chip, int reg)
+snd_azf3328_codec_inb(const struct snd_azf3328 *chip, unsigned reg)
{
- return inb(chip->codec_port + reg);
+ return inb(chip->codec_io + reg);
}
static inline void
-snd_azf3328_codec_outw(const struct snd_azf3328 *chip, int reg, u16 value)
+snd_azf3328_codec_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value)
{
- outw(value, chip->codec_port + reg);
+ outw(value, chip->codec_io + reg);
}
static inline u16
-snd_azf3328_codec_inw(const struct snd_azf3328 *chip, int reg)
+snd_azf3328_codec_inw(const struct snd_azf3328 *chip, unsigned reg)
+{
+ return inw(chip->codec_io + reg);
+}
+
+static inline void
+snd_azf3328_codec_outl(const struct snd_azf3328 *chip, unsigned reg, u32 value)
+{
+ outl(value, chip->codec_io + reg);
+}
+
+static inline u32
+snd_azf3328_codec_inl(const struct snd_azf3328 *chip, unsigned reg)
{
- return inw(chip->codec_port + reg);
+ return inl(chip->codec_io + reg);
}
static inline void
-snd_azf3328_codec_outl(const struct snd_azf3328 *chip, int reg, u32 value)
+snd_azf3328_game_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value)
{
- outl(value, chip->codec_port + reg);
+ outb(value, chip->game_io + reg);
}
static inline void
-snd_azf3328_io2_outb(const struct snd_azf3328 *chip, int reg, u8 value)
+snd_azf3328_game_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value)
{
- outb(value, chip->io2_port + reg);
+ outw(value, chip->game_io + reg);
}
static inline u8
-snd_azf3328_io2_inb(const struct snd_azf3328 *chip, int reg)
+snd_azf3328_game_inb(const struct snd_azf3328 *chip, unsigned reg)
+{
+ return inb(chip->game_io + reg);
+}
+
+static inline u16
+snd_azf3328_game_inw(const struct snd_azf3328 *chip, unsigned reg)
{
- return inb(chip->io2_port + reg);
+ return inw(chip->game_io + reg);
}
static inline void
-snd_azf3328_mixer_outw(const struct snd_azf3328 *chip, int reg, u16 value)
+snd_azf3328_mixer_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value)
{
- outw(value, chip->mixer_port + reg);
+ outw(value, chip->mixer_io + reg);
}
static inline u16
-snd_azf3328_mixer_inw(const struct snd_azf3328 *chip, int reg)
+snd_azf3328_mixer_inw(const struct snd_azf3328 *chip, unsigned reg)
{
- return inw(chip->mixer_port + reg);
+ return inw(chip->mixer_io + reg);
}
-static void
-snd_azf3328_mixer_set_mute(const struct snd_azf3328 *chip, int reg, int do_mute)
+#define AZF_MUTE_BIT 0x80
+
+static int
+snd_azf3328_mixer_set_mute(const struct snd_azf3328 *chip,
+ unsigned reg, int do_mute
+)
{
- unsigned long portbase = chip->mixer_port + reg + 1;
- unsigned char oldval;
+ unsigned long portbase = chip->mixer_io + reg + 1;
+ int updated;
/* the mute bit is on the *second* (i.e. right) register of a
* left/right channel setting */
- oldval = inb(portbase);
- if (do_mute)
- oldval |= 0x80;
- else
- oldval &= ~0x80;
- outb(oldval, portbase);
+ updated = snd_azf3328_io_reg_setb(portbase, AZF_MUTE_BIT, do_mute);
+
+ /* indicate whether it was muted before */
+ return (do_mute) ? !updated : updated;
}
static void
-snd_azf3328_mixer_write_volume_gradually(const struct snd_azf3328 *chip, int reg, unsigned char dst_vol_left, unsigned char dst_vol_right, int chan_sel, int delay)
+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_port + reg;
+ unsigned long portbase = chip->mixer_io + reg;
unsigned char curr_vol_left = 0, curr_vol_right = 0;
- int left_done = 0, right_done = 0;
-
+ int left_change = 0, right_change = 0;
+
snd_azf3328_dbgcallenter();
- if (chan_sel & SET_CHAN_LEFT)
+
+ if (chan_sel & SET_CHAN_LEFT) {
curr_vol_left = inb(portbase + 1);
- else
- left_done = 1;
- if (chan_sel & SET_CHAN_RIGHT)
+
+ /* 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);
- else
- right_done = 1;
-
- /* take care of muting flag (0x80) contained in left channel */
- if (curr_vol_left & 0x80)
- dst_vol_left |= 0x80;
- else
- dst_vol_left &= ~0x80;
+
+ right_change = (curr_vol_right > dst_vol_right) ? -1 : 1;
+ }
do {
- if (!left_done) {
- if (curr_vol_left > dst_vol_left)
- curr_vol_left--;
- else
- if (curr_vol_left < dst_vol_left)
- curr_vol_left++;
- else
- left_done = 1;
- outb(curr_vol_left, portbase + 1);
+ 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_done) {
- if (curr_vol_right > dst_vol_right)
- curr_vol_right--;
- else
- if (curr_vol_right < dst_vol_right)
- curr_vol_right++;
- else
- right_done = 1;
+ 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);
+ outb(curr_vol_right, portbase + 0);
+ } else
+ right_change = 0;
}
if (delay)
mdelay(delay);
- } while ((!left_done) || (!right_done));
+ } while ((left_change) || (right_change));
snd_azf3328_dbgcallleave();
}
@@ -379,7 +490,7 @@ snd_azf3328_mixer_write_volume_gradually(const struct snd_azf3328 *chip, int reg
* general mixer element
*/
struct azf3328_mixer_reg {
- unsigned int reg;
+ unsigned reg;
unsigned int lchan_shift, rchan_shift;
unsigned int mask;
unsigned int invert: 1;
@@ -544,13 +655,14 @@ snd_azf3328_info_mixer_enum(struct snd_kcontrol *kcontrol,
"Mix", "Mic"
};
static const char * const texts3[] = {
- "Mic", "CD", "Video", "Aux",
+ "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 *p = NULL;
snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
@@ -561,18 +673,20 @@ snd_azf3328_info_mixer_enum(struct snd_kcontrol *kcontrol,
if (reg.reg == IDX_MIXER_ADVCTL2) {
switch(reg.lchan_shift) {
case 8: /* modem out sel */
- strcpy(uinfo->value.enumerated.name, texts1[uinfo->value.enumerated.item]);
+ p = texts1[uinfo->value.enumerated.item];
break;
case 9: /* mono sel source */
- strcpy(uinfo->value.enumerated.name, texts2[uinfo->value.enumerated.item]);
+ p = texts2[uinfo->value.enumerated.item];
break;
case 15: /* PCM Out Path */
- strcpy(uinfo->value.enumerated.name, texts4[uinfo->value.enumerated.item]);
+ p = texts4[uinfo->value.enumerated.item];
break;
}
} else
- strcpy(uinfo->value.enumerated.name, texts3[uinfo->value.enumerated.item]
-);
+ if (reg.reg == IDX_MIXER_REC_SELECT)
+ p = texts3[uinfo->value.enumerated.item];
+
+ strcpy(uinfo->value.enumerated.name, p);
return 0;
}
@@ -583,7 +697,7 @@ snd_azf3328_get_mixer_enum(struct snd_kcontrol *kcontrol,
struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol);
struct azf3328_mixer_reg reg;
unsigned short val;
-
+
snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
val = snd_azf3328_mixer_inw(chip, reg.reg);
if (reg.reg == IDX_MIXER_REC_SELECT) {
@@ -605,7 +719,7 @@ snd_azf3328_put_mixer_enum(struct snd_kcontrol *kcontrol,
struct snd_azf3328 *chip = snd_kcontrol_chip(kcontrol);
struct azf3328_mixer_reg reg;
unsigned int oreg, nreg, val;
-
+
snd_azf3328_mixer_reg_decode(&reg, kcontrol->private_value);
oreg = snd_azf3328_mixer_inw(chip, reg.reg);
val = oreg;
@@ -717,15 +831,16 @@ snd_azf3328_mixer_new(struct snd_azf3328 *chip)
snd_azf3328_mixer_outw(chip, IDX_MIXER_RESET, 0x0000);
/* mute and zero volume channels */
- for (idx = 0; idx < ARRAY_SIZE(snd_azf3328_init_values); idx++) {
+ 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++) {
+ for (idx = 0; idx < ARRAY_SIZE(snd_azf3328_mixer_controls);
+ ++idx, ++sw) {
if ((err = snd_ctl_add(chip->card, snd_ctl_new1(sw, chip))) < 0)
return err;
}
@@ -757,8 +872,8 @@ snd_azf3328_hw_free(struct snd_pcm_substream *substream)
}
static void
-snd_azf3328_setfmt(struct snd_azf3328 *chip,
- unsigned int reg,
+snd_azf3328_codec_setfmt(struct snd_azf3328 *chip,
+ unsigned reg,
unsigned int bitrate,
unsigned int format_width,
unsigned int channels
@@ -769,24 +884,25 @@ snd_azf3328_setfmt(struct snd_azf3328 *chip,
snd_azf3328_dbgcallenter();
switch (bitrate) {
- case 4000: val |= SOUNDFORMAT_FREQ_SUSPECTED_4000; break;
- case 4800: val |= SOUNDFORMAT_FREQ_SUSPECTED_4800; break;
- case 5512: val |= SOUNDFORMAT_FREQ_5510; break; /* the AZF3328 names it "5510" for some strange reason */
- case 6620: val |= SOUNDFORMAT_FREQ_6620; break;
- case 8000: val |= SOUNDFORMAT_FREQ_8000; break;
- case 9600: val |= SOUNDFORMAT_FREQ_9600; break;
- case 11025: val |= SOUNDFORMAT_FREQ_11025; break;
- case 13240: val |= SOUNDFORMAT_FREQ_SUSPECTED_13240; break;
- case 16000: val |= SOUNDFORMAT_FREQ_16000; break;
- case 22050: val |= SOUNDFORMAT_FREQ_22050; break;
- case 32000: val |= SOUNDFORMAT_FREQ_32000; break;
- case 44100: val |= SOUNDFORMAT_FREQ_44100; break;
- case 48000: val |= SOUNDFORMAT_FREQ_48000; break;
- case 66200: val |= SOUNDFORMAT_FREQ_SUSPECTED_66200; break;
+ case AZF_FREQ_4000: val |= SOUNDFORMAT_FREQ_SUSPECTED_4000; break;
+ case AZF_FREQ_4800: val |= SOUNDFORMAT_FREQ_SUSPECTED_4800; break;
+ case AZF_FREQ_5512:
+ /* the AZF3328 names it "5510" for some strange reason */
+ val |= SOUNDFORMAT_FREQ_5510; break;
+ case AZF_FREQ_6620: val |= SOUNDFORMAT_FREQ_6620; break;
+ case AZF_FREQ_8000: val |= SOUNDFORMAT_FREQ_8000; break;
+ case AZF_FREQ_9600: val |= SOUNDFORMAT_FREQ_9600; break;
+ case AZF_FREQ_11025: val |= SOUNDFORMAT_FREQ_11025; break;
+ case AZF_FREQ_13240: val |= SOUNDFORMAT_FREQ_SUSPECTED_13240; break;
+ case AZF_FREQ_16000: val |= SOUNDFORMAT_FREQ_16000; break;
+ case AZF_FREQ_22050: val |= SOUNDFORMAT_FREQ_22050; break;
+ case AZF_FREQ_32000: val |= SOUNDFORMAT_FREQ_32000; break;
default:
snd_printk(KERN_WARNING "unknown bitrate %d, assuming 44.1kHz!\n", bitrate);
- val |= SOUNDFORMAT_FREQ_44100;
- break;
+ /* fall-through */
+ case AZF_FREQ_44100: val |= SOUNDFORMAT_FREQ_44100; break;
+ case AZF_FREQ_48000: val |= SOUNDFORMAT_FREQ_48000; break;
+ case AZF_FREQ_66200: val |= 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? */
@@ -805,10 +921,10 @@ snd_azf3328_setfmt(struct snd_azf3328 *chip,
val |= SOUNDFORMAT_FLAG_16BIT;
spin_lock_irqsave(&chip->reg_lock, flags);
-
+
/* set bitrate/format */
snd_azf3328_codec_outw(chip, reg, val);
-
+
/* changing the bitrate/format settings switches off the
* audio output with an annoying click in case of 8/16bit format change
* (maybe shutting down DAC/ADC?), thus immediately
@@ -830,31 +946,81 @@ snd_azf3328_setfmt(struct snd_azf3328 *chip,
snd_azf3328_dbgcallleave();
}
+static inline void
+snd_azf3328_codec_setfmt_lowpower(struct snd_azf3328 *chip,
+ unsigned reg
+)
+{
+ /* 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(chip, reg, AZF_FREQ_4000, 8, 1);
+}
+
+static inline void
+snd_azf3328_codec_enable(struct snd_azf3328 *chip, int enable)
+{
+ /* no idea what exactly is being done here, but I strongly assume it's
+ * PM related */
+ snd_azf3328_io_reg_setw(
+ chip->codec_io+IDX_IO_6AH,
+ IO_6A_PAUSE_PLAYBACK_BIT8,
+ !enable
+ );
+}
+
+static void
+snd_azf3328_codec_activity(struct snd_azf3328 *chip,
+ enum snd_azf3328_stream_index stream_type,
+ int enable
+)
+{
+ int need_change = (chip->audio_stream[stream_type].running != enable);
+
+ snd_azf3328_dbgplay(
+ "codec_activity: type %d, enable %d, need_change %d\n",
+ stream_type, enable, need_change
+ );
+ if (need_change) {
+ enum snd_azf3328_stream_index other =
+ (stream_type == AZF_PLAYBACK) ?
+ AZF_CAPTURE : AZF_PLAYBACK;
+ /* small check to prevent shutting down the other party
+ * in case it's active */
+ if ((enable) || !(chip->audio_stream[other].running))
+ snd_azf3328_codec_enable(chip, enable);
+
+ /* ...and adjust clock, too
+ * (reduce noise and power consumption) */
+ if (!enable)
+ snd_azf3328_codec_setfmt_lowpower(
+ chip,
+ chip->audio_stream[stream_type].portbase
+ + IDX_IO_PLAY_SOUNDFORMAT
+ );
+ }
+ chip->audio_stream[stream_type].running = enable;
+}
+
static void
snd_azf3328_setdmaa(struct snd_azf3328 *chip,
long unsigned int addr,
unsigned int count,
unsigned int size,
- int do_recording)
+ enum snd_azf3328_stream_index stream_type
+)
{
- unsigned long flags, portbase;
- unsigned int is_running;
-
snd_azf3328_dbgcallenter();
- if (do_recording) {
- /* access capture registers, i.e. skip playback reg section */
- portbase = chip->codec_port + 0x20;
- is_running = chip->is_recording;
- } else {
- /* access the playback register section */
- portbase = chip->codec_port + 0x00;
- is_running = chip->is_playing;
- }
+ if (!chip->audio_stream[stream_type].running) {
+ /* AZF3328 uses a two buffer pointer DMA playback approach */
+
+ unsigned long flags, portbase, addr_area2;
+
+ /* width 32bit (prevent overflow): */
+ unsigned long count_areas, count_tmp;
- /* AZF3328 uses a two buffer pointer DMA playback approach */
- if (!is_running) {
- unsigned long addr_area2;
- unsigned long count_areas, count_tmp; /* width 32bit -- overflow!! */
+ portbase = chip->audio_stream[stream_type].portbase;
count_areas = size/2;
addr_area2 = addr+count_areas;
count_areas--; /* max. index */
@@ -884,11 +1050,11 @@ snd_azf3328_playback_prepare(struct snd_pcm_substream *substream)
snd_azf3328_dbgcallenter();
#if 0
- snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT,
+ snd_azf3328_codec_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT,
runtime->rate,
snd_pcm_format_width(runtime->format),
runtime->channels);
- snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, 0);
+ snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, AZF_PLAYBACK);
#endif
snd_azf3328_dbgcallleave();
return 0;
@@ -906,11 +1072,11 @@ snd_azf3328_capture_prepare(struct snd_pcm_substream *substream)
snd_azf3328_dbgcallenter();
#if 0
- snd_azf3328_setfmt(chip, IDX_IO_REC_SOUNDFORMAT,
+ snd_azf3328_codec_setfmt(chip, IDX_IO_REC_SOUNDFORMAT,
runtime->rate,
snd_pcm_format_width(runtime->format),
runtime->channels);
- snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, 1);
+ snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, AZF_CAPTURE);
#endif
snd_azf3328_dbgcallleave();
return 0;
@@ -923,6 +1089,7 @@ snd_azf3328_playback_trigger(struct snd_pcm_substream *substream, int cmd)
struct snd_pcm_runtime *runtime = substream->runtime;
int result = 0;
unsigned int status1;
+ int previously_muted;
snd_azf3328_dbgcalls("snd_azf3328_playback_trigger cmd %d\n", cmd);
@@ -930,20 +1097,23 @@ snd_azf3328_playback_trigger(struct snd_pcm_substream *substream, int cmd)
case SNDRV_PCM_TRIGGER_START:
snd_azf3328_dbgplay("START PLAYBACK\n");
- /* mute WaveOut */
- snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
+ /* mute WaveOut (avoid clicking during setup) */
+ previously_muted =
+ snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
- snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT,
+ snd_azf3328_codec_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT,
runtime->rate,
snd_pcm_format_width(runtime->format),
runtime->channels);
spin_lock(&chip->reg_lock);
- /* stop playback */
+ /* first, remember current value: */
status1 = snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS);
+
+ /* stop playback */
status1 &= ~DMA_RESUME;
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, status1);
-
+
/* FIXME: clear interrupts or what??? */
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_IRQTYPE, 0xffff);
spin_unlock(&chip->reg_lock);
@@ -951,7 +1121,7 @@ snd_azf3328_playback_trigger(struct snd_pcm_substream *substream, int cmd)
snd_azf3328_setdmaa(chip, runtime->dma_addr,
snd_pcm_lib_period_bytes(substream),
snd_pcm_lib_buffer_bytes(substream),
- 0);
+ AZF_PLAYBACK);
spin_lock(&chip->reg_lock);
#ifdef WIN9X
@@ -978,30 +1148,35 @@ snd_azf3328_playback_trigger(struct snd_pcm_substream *substream, int cmd)
DMA_SOMETHING_ELSE);
#endif
spin_unlock(&chip->reg_lock);
+ snd_azf3328_codec_activity(chip, AZF_PLAYBACK, 1);
/* now unmute WaveOut */
- snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0);
+ if (!previously_muted)
+ snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0);
- chip->is_playing = 1;
snd_azf3328_dbgplay("STARTED PLAYBACK\n");
break;
case SNDRV_PCM_TRIGGER_RESUME:
snd_azf3328_dbgplay("RESUME PLAYBACK\n");
/* resume playback if we were active */
- if (chip->is_playing)
+ spin_lock(&chip->reg_lock);
+ if (chip->audio_stream[AZF_PLAYBACK].running)
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS,
snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS) | DMA_RESUME);
+ spin_unlock(&chip->reg_lock);
break;
case SNDRV_PCM_TRIGGER_STOP:
snd_azf3328_dbgplay("STOP PLAYBACK\n");
- /* mute WaveOut */
- snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
+ /* mute WaveOut (avoid clicking during setup) */
+ previously_muted =
+ snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
spin_lock(&chip->reg_lock);
- /* stop playback */
+ /* first, remember current value: */
status1 = snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS);
+ /* stop playback */
status1 &= ~DMA_RESUME;
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, status1);
@@ -1013,10 +1188,12 @@ snd_azf3328_playback_trigger(struct snd_pcm_substream *substream, int cmd)
status1 &= ~DMA_PLAY_SOMETHING1;
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, status1);
spin_unlock(&chip->reg_lock);
-
+ snd_azf3328_codec_activity(chip, AZF_PLAYBACK, 0);
+
/* now unmute WaveOut */
- snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0);
- chip->is_playing = 0;
+ if (!previously_muted)
+ snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0);
+
snd_azf3328_dbgplay("STOPPED PLAYBACK\n");
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
@@ -1035,7 +1212,7 @@ snd_azf3328_playback_trigger(struct snd_pcm_substream *substream, int cmd)
printk(KERN_ERR "FIXME: unknown trigger mode!\n");
return -EINVAL;
}
-
+
snd_azf3328_dbgcallleave();
return result;
}
@@ -1057,17 +1234,19 @@ snd_azf3328_capture_trigger(struct snd_pcm_substream *substream, int cmd)
snd_azf3328_dbgplay("START CAPTURE\n");
- snd_azf3328_setfmt(chip, IDX_IO_REC_SOUNDFORMAT,
+ snd_azf3328_codec_setfmt(chip, IDX_IO_REC_SOUNDFORMAT,
runtime->rate,
snd_pcm_format_width(runtime->format),
runtime->channels);
spin_lock(&chip->reg_lock);
- /* stop recording */
+ /* first, remember current value: */
status1 = snd_azf3328_codec_inw(chip, IDX_IO_REC_FLAGS);
+
+ /* stop recording */
status1 &= ~DMA_RESUME;
snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, status1);
-
+
/* FIXME: clear interrupts or what??? */
snd_azf3328_codec_outw(chip, IDX_IO_REC_IRQTYPE, 0xffff);
spin_unlock(&chip->reg_lock);
@@ -1075,7 +1254,7 @@ snd_azf3328_capture_trigger(struct snd_pcm_substream *substream, int cmd)
snd_azf3328_setdmaa(chip, runtime->dma_addr,
snd_pcm_lib_period_bytes(substream),
snd_pcm_lib_buffer_bytes(substream),
- 1);
+ AZF_CAPTURE);
spin_lock(&chip->reg_lock);
#ifdef WIN9X
@@ -1102,24 +1281,27 @@ snd_azf3328_capture_trigger(struct snd_pcm_substream *substream, int cmd)
DMA_SOMETHING_ELSE);
#endif
spin_unlock(&chip->reg_lock);
+ snd_azf3328_codec_activity(chip, AZF_CAPTURE, 1);
- chip->is_recording = 1;
snd_azf3328_dbgplay("STARTED CAPTURE\n");
break;
case SNDRV_PCM_TRIGGER_RESUME:
snd_azf3328_dbgplay("RESUME CAPTURE\n");
/* resume recording if we were active */
- if (chip->is_recording)
+ spin_lock(&chip->reg_lock);
+ if (chip->audio_stream[AZF_CAPTURE].running)
snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS,
snd_azf3328_codec_inw(chip, IDX_IO_REC_FLAGS) | DMA_RESUME);
+ spin_unlock(&chip->reg_lock);
break;
case SNDRV_PCM_TRIGGER_STOP:
snd_azf3328_dbgplay("STOP CAPTURE\n");
spin_lock(&chip->reg_lock);
- /* stop recording */
+ /* first, remember current value: */
status1 = snd_azf3328_codec_inw(chip, IDX_IO_REC_FLAGS);
+ /* stop recording */
status1 &= ~DMA_RESUME;
snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, status1);
@@ -1129,8 +1311,8 @@ snd_azf3328_capture_trigger(struct snd_pcm_substream *substream, int cmd)
status1 &= ~DMA_PLAY_SOMETHING1;
snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, status1);
spin_unlock(&chip->reg_lock);
-
- chip->is_recording = 0;
+ snd_azf3328_codec_activity(chip, AZF_CAPTURE, 0);
+
snd_azf3328_dbgplay("STOPPED CAPTURE\n");
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
@@ -1149,7 +1331,7 @@ snd_azf3328_capture_trigger(struct snd_pcm_substream *substream, int cmd)
printk(KERN_ERR "FIXME: unknown trigger mode!\n");
return -EINVAL;
}
-
+
snd_azf3328_dbgcallleave();
return result;
}
@@ -1162,11 +1344,11 @@ snd_azf3328_playback_pointer(struct snd_pcm_substream *substream)
snd_pcm_uframes_t frmres;
#ifdef QUERY_HARDWARE
- bufptr = inl(chip->codec_port+IDX_IO_PLAY_DMA_START_1);
+ bufptr = snd_azf3328_codec_inl(chip, IDX_IO_PLAY_DMA_START_1);
#else
bufptr = substream->runtime->dma_addr;
#endif
- result = inl(chip->codec_port+IDX_IO_PLAY_DMA_CURRPOS);
+ result = snd_azf3328_codec_inl(chip, IDX_IO_PLAY_DMA_CURRPOS);
/* calculate offset */
result -= bufptr;
@@ -1183,11 +1365,11 @@ snd_azf3328_capture_pointer(struct snd_pcm_substream *substream)
snd_pcm_uframes_t frmres;
#ifdef QUERY_HARDWARE
- bufptr = inl(chip->codec_port+IDX_IO_REC_DMA_START_1);
+ bufptr = snd_azf3328_codec_inl(chip, IDX_IO_REC_DMA_START_1);
#else
bufptr = substream->runtime->dma_addr;
#endif
- result = inl(chip->codec_port+IDX_IO_REC_DMA_CURRPOS);
+ result = snd_azf3328_codec_inl(chip, IDX_IO_REC_DMA_CURRPOS);
/* calculate offset */
result -= bufptr;
@@ -1196,27 +1378,233 @@ snd_azf3328_capture_pointer(struct snd_pcm_substream *substream)
return frmres;
}
+/******************************************************************/
+
+#ifdef SUPPORT_GAMEPORT
+static inline void
+snd_azf3328_gameport_irq_enable(struct snd_azf3328 *chip, int 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, int enable)
+{
+ snd_azf3328_io_reg_setb(
+ chip->game_io+IDX_GAME_HWCONFIG,
+ GAME_HWCFG_LEGACY_ADDRESS_ENABLE,
+ enable
+ );
+}
+
+static inline void
+snd_azf3328_gameport_axis_circuit_enable(struct snd_azf3328 *chip, int enable)
+{
+ snd_azf3328_io_reg_setw(
+ chip->codec_io+IDX_IO_6AH,
+ 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!)
+ */
+ snd_azf3328_dbggame("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;
+
+ snd_azf3328_dbggame("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_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);
+
+ snd_azf3328_dbggame("gameport_close\n");
+ 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;
+
+ snd_assert(chip, return 0);
+
+ spin_lock_irqsave(&chip->reg_lock, flags);
+ val = snd_azf3328_game_inb(chip, IDX_GAME_LEGACY_COMPATIBLE);
+ *buttons = (~(val) >> 4) & 0xf;
+
+ /* 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 < 4; ++i) {
+ /* configure the axis to read */
+ val = (i << 4) | 0x0f;
+ snd_azf3328_game_outb(chip, IDX_GAME_AXES_CONFIG, val);
+
+ chip->axes[i] = snd_azf3328_game_inw(
+ chip, IDX_GAME_AXIS_VALUE
+ );
+ }
+ }
+
+ /* trigger next axes sampling, 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 = 0x03; /* 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, 0xffff);
+ spin_unlock_irqrestore(&chip->reg_lock, flags);
+
+ for (i = 0; i < 4; i++) {
+ axes[i] = chip->axes[i];
+ if (axes[i] == 0xffff)
+ axes[i] = -1;
+ }
+
+ snd_azf3328_dbggame("cooked_read: axes %d %d %d %d buttons %d\n",
+ axes[0], axes[1], axes[2], axes[3], *buttons
+ );
+
+ return 0;
+}
+
+static int __devinit
+snd_azf3328_gameport(struct snd_azf3328 *chip, int dev)
+{
+ struct gameport *gp;
+
+ int io_port = chip->game_io;
+
+ chip->gameport = gp = gameport_allocate_port();
+ if (!gp) {
+ printk(KERN_ERR "azt3328: 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 = io_port;
+ 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_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)
+{
+ printk(KERN_WARNING "huh, game port IRQ occurred!?\n");
+}
+#endif /* SUPPORT_GAMEPORT */
+
+/******************************************************************/
+
static irqreturn_t
snd_azf3328_interrupt(int irq, void *dev_id)
{
struct snd_azf3328 *chip = dev_id;
u8 status, which;
+#if DEBUG_PLAY_REC
static unsigned long irq_count;
+#endif
status = snd_azf3328_codec_inb(chip, IDX_IO_IRQSTATUS);
/* fast path out, to ease interrupt sharing */
- if (!(status & (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_MPU401|IRQ_TIMER)))
+ if (!(status &
+ (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_GAMEPORT|IRQ_MPU401|IRQ_TIMER)
+ ))
return IRQ_NONE; /* must be interrupt for another device */
snd_azf3328_dbgplay("Interrupt %ld!\nIDX_IO_PLAY_FLAGS %04x, IDX_IO_PLAY_IRQTYPE %04x, IDX_IO_IRQSTATUS %04x\n",
- irq_count,
+ irq_count++ /* debug-only */,
snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS),
snd_azf3328_codec_inw(chip, IDX_IO_PLAY_IRQTYPE),
status);
-
+
if (status & IRQ_TIMER) {
- /* snd_azf3328_dbgplay("timer %ld\n", inl(chip->codec_port+IDX_IO_TIMER_VALUE) & TIMER_VALUE_MASK); */
+ /* snd_azf3328_dbgplay("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 */
@@ -1232,11 +1620,16 @@ snd_azf3328_interrupt(int irq, void *dev_id)
snd_azf3328_codec_outb(chip, IDX_IO_PLAY_IRQTYPE, which);
spin_unlock(&chip->reg_lock);
- if (chip->pcm && chip->playback_substream) {
- snd_pcm_period_elapsed(chip->playback_substream);
+ if (chip->pcm && chip->audio_stream[AZF_PLAYBACK].substream) {
+ snd_pcm_period_elapsed(
+ chip->audio_stream[AZF_PLAYBACK].substream
+ );
snd_azf3328_dbgplay("PLAY period done (#%x), @ %x\n",
which,
- inl(chip->codec_port+IDX_IO_PLAY_DMA_CURRPOS));
+ snd_azf3328_codec_inl(
+ chip, IDX_IO_PLAY_DMA_CURRPOS
+ )
+ );
} else
snd_azf3328_dbgplay("azt3328: ouch, irq handler problem!\n");
if (which & IRQ_PLAY_SOMETHING)
@@ -1249,16 +1642,23 @@ snd_azf3328_interrupt(int irq, void *dev_id)
snd_azf3328_codec_outb(chip, IDX_IO_REC_IRQTYPE, which);
spin_unlock(&chip->reg_lock);
- if (chip->pcm && chip->capture_substream) {
- snd_pcm_period_elapsed(chip->capture_substream);
+ if (chip->pcm && chip->audio_stream[AZF_CAPTURE].substream) {
+ snd_pcm_period_elapsed(
+ chip->audio_stream[AZF_CAPTURE].substream
+ );
snd_azf3328_dbgplay("REC period done (#%x), @ %x\n",
which,
- inl(chip->codec_port+IDX_IO_REC_DMA_CURRPOS));
+ snd_azf3328_codec_inl(
+ chip, IDX_IO_REC_DMA_CURRPOS
+ )
+ );
} else
snd_azf3328_dbgplay("azt3328: ouch, irq handler problem!\n");
if (which & IRQ_REC_SOMETHING)
snd_azf3328_dbgplay("azt3328: unknown rec IRQ type occurred, please report!\n");
}
+ 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) {
@@ -1268,7 +1668,6 @@ snd_azf3328_interrupt(int irq, void *dev_id)
* If so, then I don't know how... */
snd_azf3328_dbgplay("azt3328: MPU401 IRQ\n");
}
- irq_count++;
return IRQ_HANDLED;
}
@@ -1287,8 +1686,8 @@ static const struct snd_pcm_hardware snd_azf3328_playback =
.rates = SNDRV_PCM_RATE_5512 |
SNDRV_PCM_RATE_8000_48000 |
SNDRV_PCM_RATE_KNOT,
- .rate_min = 4000,
- .rate_max = 66200,
+ .rate_min = AZF_FREQ_4000,
+ .rate_max = AZF_FREQ_66200,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = 65536,
@@ -1315,8 +1714,8 @@ static const struct snd_pcm_hardware snd_azf3328_capture =
.rates = SNDRV_PCM_RATE_5512 |
SNDRV_PCM_RATE_8000_48000 |
SNDRV_PCM_RATE_KNOT,
- .rate_min = 4000,
- .rate_max = 66200,
+ .rate_min = AZF_FREQ_4000,
+ .rate_max = AZF_FREQ_66200,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = 65536,
@@ -1329,10 +1728,24 @@ static const struct snd_pcm_hardware snd_azf3328_capture =
static unsigned int snd_azf3328_fixed_rates[] = {
- 4000, 4800, 5512, 6620, 8000, 9600, 11025, 13240, 16000, 22050, 32000,
- 44100, 48000, 66200 };
+ 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 struct snd_pcm_hw_constraint_list snd_azf3328_hw_constraints_rates = {
- .count = ARRAY_SIZE(snd_azf3328_fixed_rates),
+ .count = ARRAY_SIZE(snd_azf3328_fixed_rates),
.list = snd_azf3328_fixed_rates,
.mask = 0,
};
@@ -1346,7 +1759,7 @@ snd_azf3328_playback_open(struct snd_pcm_substream *substream)
struct snd_pcm_runtime *runtime = substream->runtime;
snd_azf3328_dbgcallenter();
- chip->playback_substream = substream;
+ chip->audio_stream[AZF_PLAYBACK].substream = substream;
runtime->hw = snd_azf3328_playback;
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&snd_azf3328_hw_constraints_rates);
@@ -1361,7 +1774,7 @@ snd_azf3328_capture_open(struct snd_pcm_substream *substream)
struct snd_pcm_runtime *runtime = substream->runtime;
snd_azf3328_dbgcallenter();
- chip->capture_substream = substream;
+ chip->audio_stream[AZF_CAPTURE].substream = substream;
runtime->hw = snd_azf3328_capture;
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&snd_azf3328_hw_constraints_rates);
@@ -1375,7 +1788,7 @@ snd_azf3328_playback_close(struct snd_pcm_substream *substream)
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
snd_azf3328_dbgcallenter();
- chip->playback_substream = NULL;
+ chip->audio_stream[AZF_PLAYBACK].substream = NULL;
snd_azf3328_dbgcallleave();
return 0;
}
@@ -1386,7 +1799,7 @@ snd_azf3328_capture_close(struct snd_pcm_substream *substream)
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
snd_azf3328_dbgcallenter();
- chip->capture_substream = NULL;
+ chip->audio_stream[AZF_CAPTURE].substream = NULL;
snd_azf3328_dbgcallleave();
return 0;
}
@@ -1441,102 +1854,8 @@ snd_azf3328_pcm(struct snd_azf3328 *chip, int device)
/******************************************************************/
-#ifdef SUPPORT_JOYSTICK
-static int __devinit
-snd_azf3328_config_joystick(struct snd_azf3328 *chip, int dev)
-{
- struct gameport *gp;
- struct resource *r;
-
- if (!joystick[dev])
- return -ENODEV;
-
- if (!(r = request_region(0x200, 8, "AZF3328 gameport"))) {
- printk(KERN_WARNING "azt3328: cannot reserve joystick ports\n");
- return -EBUSY;
- }
-
- chip->gameport = gp = gameport_allocate_port();
- if (!gp) {
- printk(KERN_ERR "azt3328: cannot allocate memory for gameport\n");
- release_and_free_resource(r);
- 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 = 0x200;
- gameport_set_port_data(gp, r);
-
- snd_azf3328_io2_outb(chip, IDX_IO2_LEGACY_ADDR,
- snd_azf3328_io2_inb(chip, IDX_IO2_LEGACY_ADDR) | LEGACY_JOY);
-
- gameport_register_port(chip->gameport);
-
- return 0;
-}
-
-static void
-snd_azf3328_free_joystick(struct snd_azf3328 *chip)
-{
- if (chip->gameport) {
- struct resource *r = gameport_get_port_data(chip->gameport);
-
- gameport_unregister_port(chip->gameport);
- chip->gameport = NULL;
- /* disable gameport */
- snd_azf3328_io2_outb(chip, IDX_IO2_LEGACY_ADDR,
- snd_azf3328_io2_inb(chip, IDX_IO2_LEGACY_ADDR) & ~LEGACY_JOY);
- release_and_free_resource(r);
- }
-}
-#else
-static inline int
-snd_azf3328_config_joystick(struct snd_azf3328 *chip, int dev) { return -ENOSYS; }
-static inline void
-snd_azf3328_free_joystick(struct snd_azf3328 *chip) { }
-#endif
-
-/******************************************************************/
-
-static int
-snd_azf3328_free(struct snd_azf3328 *chip)
-{
- if (chip->irq < 0)
- goto __end_hw;
-
- /* reset (close) mixer */
- snd_azf3328_mixer_set_mute(chip, IDX_MIXER_PLAY_MASTER, 1); /* first mute master volume */
- snd_azf3328_mixer_outw(chip, IDX_MIXER_RESET, 0x0000);
-
- /* interrupt setup - mask everything (FIXME!) */
- /* well, at least we know how to disable the timer IRQ */
- snd_azf3328_codec_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x00);
-
- if (chip->irq >= 0)
- synchronize_irq(chip->irq);
-__end_hw:
- snd_azf3328_free_joystick(chip);
- if (chip->irq >= 0)
- free_irq(chip->irq, chip);
- pci_release_regions(chip->pci);
- pci_disable_device(chip->pci);
-
- kfree(chip);
- return 0;
-}
-
-static int
-snd_azf3328_dev_free(struct snd_device *device)
-{
- struct snd_azf3328 *chip = device->device_data;
- return snd_azf3328_free(chip);
-}
-
-/******************************************************************/
-
-/*** NOTE: the physical timer resolution actually is 1024000 ticks per second,
+/*** 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.
@@ -1564,7 +1883,7 @@ snd_azf3328_timer_start(struct snd_timer *timer)
delay = 49; /* minimum time is 49 ticks */
}
snd_azf3328_dbgtimer("setting timer countdown value %d, add COUNTDOWN|IRQ\n", delay);
- delay |= TIMER_ENABLE_COUNTDOWN | TIMER_ENABLE_IRQ;
+ delay |= TIMER_COUNTDOWN_ENABLE | TIMER_IRQ_ENABLE;
spin_lock_irqsave(&chip->reg_lock, flags);
snd_azf3328_codec_outl(chip, IDX_IO_TIMER_VALUE, delay);
spin_unlock_irqrestore(&chip->reg_lock, flags);
@@ -1582,7 +1901,7 @@ snd_azf3328_timer_stop(struct snd_timer *timer)
chip = snd_timer_chip(timer);
spin_lock_irqsave(&chip->reg_lock, flags);
/* disable timer countdown and interrupt */
- /* FIXME: should we write TIMER_ACK_IRQ here? */
+ /* FIXME: should we write TIMER_IRQ_ACK here? */
snd_azf3328_codec_outb(chip, IDX_IO_TIMER_VALUE + 3, 0);
spin_unlock_irqrestore(&chip->reg_lock, flags);
snd_azf3328_dbgcallleave();
@@ -1626,9 +1945,10 @@ snd_azf3328_timer(struct snd_azf3328 *chip, int device)
snd_azf3328_timer_hw.resolution *= seqtimer_scaling;
snd_azf3328_timer_hw.ticks /= seqtimer_scaling;
- if ((err = snd_timer_new(chip->card, "AZF3328", &tid, &timer)) < 0) {
+
+ err = snd_timer_new(chip->card, "AZF3328", &tid, &timer);
+ if (err < 0)
goto out;
- }
strcpy(timer->name, "AZF3328 timer");
timer->private_data = chip;
@@ -1636,6 +1956,8 @@ snd_azf3328_timer(struct snd_azf3328 *chip, int device)
chip->timer = timer;
+ snd_azf3328_timer_stop(timer);
+
err = 0;
out:
@@ -1645,10 +1967,44 @@ out:
/******************************************************************/
+static int
+snd_azf3328_free(struct snd_azf3328 *chip)
+{
+ if (chip->irq < 0)
+ goto __end_hw;
+
+ /* reset (close) mixer:
+ * first mute master volume, then reset
+ */
+ snd_azf3328_mixer_set_mute(chip, IDX_MIXER_PLAY_MASTER, 1);
+ snd_azf3328_mixer_outw(chip, IDX_MIXER_RESET, 0x0000);
+
+ snd_azf3328_timer_stop(chip->timer);
+ snd_azf3328_gameport_free(chip);
+
+ if (chip->irq >= 0)
+ synchronize_irq(chip->irq);
+__end_hw:
+ if (chip->irq >= 0)
+ free_irq(chip->irq, chip);
+ pci_release_regions(chip->pci);
+ pci_disable_device(chip->pci);
+
+ kfree(chip);
+ return 0;
+}
+
+static int
+snd_azf3328_dev_free(struct snd_device *device)
+{
+ struct snd_azf3328 *chip = device->device_data;
+ return snd_azf3328_free(chip);
+}
+
#if 0
/* check whether a bit can be modified */
static void
-snd_azf3328_test_bit(unsigned int reg, int bit)
+snd_azf3328_test_bit(unsigned unsigned reg, int bit)
{
unsigned char val, valoff, valon;
@@ -1659,42 +2015,74 @@ snd_azf3328_test_bit(unsigned int reg, int bit)
outb(val|(1 << bit), reg);
valon = inb(reg);
-
+
outb(val, reg);
- printk(KERN_ERR "reg %04x bit %d: %02x %02x %02x\n", reg, bit, val, valoff, valon);
+ printk(KERN_ERR "reg %04x bit %d: %02x %02x %02x\n",
+ reg, bit, val, valoff, valon
+ );
}
#endif
-#if DEBUG_MISC
-static void
+static inline void
snd_azf3328_debug_show_ports(const struct snd_azf3328 *chip)
{
+#if DEBUG_MISC
u16 tmp;
- snd_azf3328_dbgmisc("codec_port 0x%lx, io2_port 0x%lx, mpu_port 0x%lx, synth_port 0x%lx, mixer_port 0x%lx, irq %d\n", chip->codec_port, chip->io2_port, chip->mpu_port, chip->synth_port, chip->mixer_port, chip->irq);
-
- snd_azf3328_dbgmisc("io2 %02x %02x %02x %02x %02x %02x\n", snd_azf3328_io2_inb(chip, 0), snd_azf3328_io2_inb(chip, 1), snd_azf3328_io2_inb(chip, 2), snd_azf3328_io2_inb(chip, 3), snd_azf3328_io2_inb(chip, 4), snd_azf3328_io2_inb(chip, 5));
-
- for (tmp=0; tmp <= 0x01; tmp += 1)
- snd_azf3328_dbgmisc("0x%02x: opl 0x%04x, mpu300 0x%04x, mpu310 0x%04x, mpu320 0x%04x, mpu330 0x%04x\n", tmp, inb(0x388 + tmp), inb(0x300 + tmp), inb(0x310 + tmp), inb(0x320 + tmp), inb(0x330 + tmp));
+ snd_azf3328_dbgmisc(
+ "codec_io 0x%lx, game_io 0x%lx, mpu_io 0x%lx, "
+ "opl3_io 0x%lx, mixer_io 0x%lx, irq %d\n",
+ chip->codec_io, chip->game_io, chip->mpu_io,
+ chip->opl3_io, chip->mixer_io, chip->irq
+ );
+
+ snd_azf3328_dbgmisc("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 < 0x07; tmp += 1)
+ snd_azf3328_dbgmisc("mpu_io 0x%04x\n", inb(chip->mpu_io + tmp));
+
+ for (tmp = 0; tmp <= 0x07; tmp += 1)
+ snd_azf3328_dbgmisc("0x%02x: game200 0x%04x, game208 0x%04x\n",
+ tmp, inb(0x200 + tmp), inb(0x208 + tmp));
+
+ for (tmp = 0; tmp <= 0x01; tmp += 1)
+ snd_azf3328_dbgmisc(
+ "0x%02x: mpu300 0x%04x, mpu310 0x%04x, mpu320 0x%04x, "
+ "mpu330 0x%04x opl388 0x%04x opl38c 0x%04x\n",
+ tmp,
+ inb(0x300 + tmp),
+ inb(0x310 + tmp),
+ inb(0x320 + tmp),
+ inb(0x330 + tmp),
+ inb(0x388 + tmp),
+ inb(0x38c + tmp)
+ );
for (tmp = 0; tmp < AZF_IO_SIZE_CODEC; tmp += 2)
- snd_azf3328_dbgmisc("codec 0x%02x: 0x%04x\n", tmp, snd_azf3328_codec_inw(chip, tmp));
+ snd_azf3328_dbgmisc("codec 0x%02x: 0x%04x\n",
+ tmp, snd_azf3328_codec_inw(chip, tmp)
+ );
for (tmp = 0; tmp < AZF_IO_SIZE_MIXER; tmp += 2)
- snd_azf3328_dbgmisc("mixer 0x%02x: 0x%04x\n", tmp, snd_azf3328_mixer_inw(chip, tmp));
+ snd_azf3328_dbgmisc("mixer 0x%02x: 0x%04x\n",
+ tmp, snd_azf3328_mixer_inw(chip, tmp)
+ );
+#endif /* DEBUG_MISC */
}
-#else
-static inline void
-snd_azf3328_debug_show_ports(const struct snd_azf3328 *chip) {}
-#endif
static int __devinit
snd_azf3328_create(struct snd_card *card,
- struct pci_dev *pci,
- unsigned long device_type,
- struct snd_azf3328 ** rchip)
+ struct pci_dev *pci,
+ unsigned long device_type,
+ struct snd_azf3328 **rchip)
{
struct snd_azf3328 *chip;
int err;
@@ -1705,7 +2093,8 @@ snd_azf3328_create(struct snd_card *card,
*rchip = NULL;
- if ((err = pci_enable_device(pci)) < 0)
+ err = pci_enable_device(pci);
+ if (err < 0)
return err;
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
@@ -1721,20 +2110,25 @@ snd_azf3328_create(struct snd_card *card,
/* check if we can restrict PCI DMA transfers to 24 bits */
if (pci_set_dma_mask(pci, DMA_24BIT_MASK) < 0 ||
pci_set_consistent_dma_mask(pci, DMA_24BIT_MASK) < 0) {
- snd_printk(KERN_ERR "architecture does not support 24bit PCI busmaster DMA\n");
+ snd_printk(KERN_ERR "architecture does not support "
+ "24bit PCI busmaster DMA\n"
+ );
err = -ENXIO;
goto out_err;
}
- if ((err = pci_request_regions(pci, "Aztech AZF3328")) < 0) {
+ err = pci_request_regions(pci, "Aztech AZF3328");
+ if (err < 0)
goto out_err;
- }
- chip->codec_port = pci_resource_start(pci, 0);
- chip->io2_port = pci_resource_start(pci, 1);
- chip->mpu_port = pci_resource_start(pci, 2);
- chip->synth_port = pci_resource_start(pci, 3);
- chip->mixer_port = pci_resource_start(pci, 4);
+ chip->codec_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);
+
+ chip->audio_stream[AZF_PLAYBACK].portbase = chip->codec_io + 0x00;
+ chip->audio_stream[AZF_CAPTURE].portbase = chip->codec_io + 0x20;
if (request_irq(pci->irq, snd_azf3328_interrupt,
IRQF_SHARED, card->shortname, chip)) {
@@ -1747,29 +2141,29 @@ snd_azf3328_create(struct snd_card *card,
synchronize_irq(chip->irq);
snd_azf3328_debug_show_ports(chip);
-
- if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
+
+ err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
+ if (err < 0)
goto out_err;
- }
/* create mixer interface & switches */
- if ((err = snd_azf3328_mixer_new(chip)) < 0)
+ err = snd_azf3328_mixer_new(chip);
+ if (err < 0)
goto out_err;
-#if 0
- /* set very low bitrate to reduce noise and power consumption? */
- snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT, 5512, 8, 1);
-#endif
+ /* shutdown codecs to save power */
+ /* have snd_azf3328_codec_activity() act properly */
+ chip->audio_stream[AZF_PLAYBACK].running = 1;
+ snd_azf3328_codec_activity(chip, AZF_PLAYBACK, 0);
/* standard chip init stuff */
- /* default IRQ init value */
+ /* default IRQ init value */
tmp = DMA_PLAY_SOMETHING2|DMA_EPILOGUE_SOMETHING|DMA_SOMETHING_ELSE;
spin_lock_irq(&chip->reg_lock);
snd_azf3328_codec_outb(chip, IDX_IO_PLAY_FLAGS, tmp);
snd_azf3328_codec_outb(chip, IDX_IO_REC_FLAGS, tmp);
snd_azf3328_codec_outb(chip, IDX_IO_SOMETHING_FLAGS, tmp);
- snd_azf3328_codec_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x00); /* disable timer */
spin_unlock_irq(&chip->reg_lock);
snd_card_set_dev(card, &pci->dev);
@@ -1805,52 +2199,61 @@ snd_azf3328_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
return -ENOENT;
}
- card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0 );
+ card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
if (card == NULL)
return -ENOMEM;
strcpy(card->driver, "AZF3328");
strcpy(card->shortname, "Aztech AZF3328 (PCI168)");
- if ((err = snd_azf3328_create(card, pci, pci_id->driver_data, &chip)) < 0) {
+ err = snd_azf3328_create(card, pci, pci_id->driver_data, &chip);
+ if (err < 0)
goto out_err;
- }
card->private_data = chip;
- if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_MPU401,
- chip->mpu_port, MPU401_INFO_INTEGRATED,
- pci->irq, 0, &chip->rmidi)) < 0) {
- snd_printk(KERN_ERR "azf3328: no MPU-401 device at 0x%lx?\n", chip->mpu_port);
+ err = snd_mpu401_uart_new(
+ card, 0, MPU401_HW_MPU401, chip->mpu_io, MPU401_INFO_INTEGRATED,
+ pci->irq, 0, &chip->rmidi
+ );
+ if (err < 0) {
+ snd_printk(KERN_ERR "azf3328: no MPU-401 device at 0x%lx?\n",
+ chip->mpu_io
+ );
goto out_err;
}
- if ((err = snd_azf3328_timer(chip, 0)) < 0) {
+ err = snd_azf3328_timer(chip, 0);
+ if (err < 0)
goto out_err;
- }
- if ((err = snd_azf3328_pcm(chip, 0)) < 0) {
+ err = snd_azf3328_pcm(chip, 0);
+ if (err < 0)
goto out_err;
- }
- if (snd_opl3_create(card, chip->synth_port, chip->synth_port+2,
+ if (snd_opl3_create(card, chip->opl3_io, chip->opl3_io+2,
OPL3_HW_AUTO, 1, &opl3) < 0) {
snd_printk(KERN_ERR "azf3328: no OPL3 device at 0x%lx-0x%lx?\n",
- chip->synth_port, chip->synth_port+2 );
+ chip->opl3_io, chip->opl3_io+2
+ );
} else {
- if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
+ /* 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)
+ goto out_err;
+ err = snd_opl3_hwdep_new(opl3, 0, 1, NULL);
+ if (err < 0)
goto out_err;
- }
}
opl3->private_data = chip;
sprintf(card->longname, "%s at 0x%lx, irq %i",
- card->shortname, chip->codec_port, chip->irq);
+ card->shortname, chip->codec_io, chip->irq);
- if ((err = snd_card_register(card)) < 0) {
+ err = snd_card_register(card);
+ if (err < 0)
goto out_err;
- }
#ifdef MODULE
printk(
@@ -1861,19 +2264,18 @@ snd_azf3328_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
1024000 / seqtimer_scaling, seqtimer_scaling);
#endif
- if (snd_azf3328_config_joystick(chip, dev) < 0)
- snd_azf3328_io2_outb(chip, IDX_IO2_LEGACY_ADDR,
- snd_azf3328_io2_inb(chip, IDX_IO2_LEGACY_ADDR) & ~LEGACY_JOY);
+ snd_azf3328_gameport(chip, dev);
pci_set_drvdata(pci, card);
dev++;
err = 0;
goto out;
-
+
out_err:
+ snd_printk(KERN_ERR "azf3328: something failed, exiting\n");
snd_card_free(card);
-
+
out:
snd_azf3328_dbgcallleave();
return err;
@@ -1894,27 +2296,27 @@ snd_azf3328_suspend(struct pci_dev *pci, pm_message_t state)
{
struct snd_card *card = pci_get_drvdata(pci);
struct snd_azf3328 *chip = card->private_data;
- int reg;
+ unsigned reg;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-
+
snd_pcm_suspend_all(chip->pcm);
- for (reg = 0; reg < AZF_IO_SIZE_MIXER_PM / 2; reg++)
- chip->saved_regs_mixer[reg] = inw(chip->mixer_port + reg * 2);
+ for (reg = 0; reg < AZF_IO_SIZE_MIXER_PM / 2; ++reg)
+ chip->saved_regs_mixer[reg] = inw(chip->mixer_io + reg * 2);
/* make sure to disable master volume etc. to prevent looping sound */
snd_azf3328_mixer_set_mute(chip, IDX_MIXER_PLAY_MASTER, 1);
snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
-
- for (reg = 0; reg < AZF_IO_SIZE_CODEC_PM / 2; reg++)
- chip->saved_regs_codec[reg] = inw(chip->codec_port + reg * 2);
- for (reg = 0; reg < AZF_IO_SIZE_IO2_PM / 2; reg++)
- chip->saved_regs_io2[reg] = inw(chip->io2_port + reg * 2);
- for (reg = 0; reg < AZF_IO_SIZE_MPU_PM / 2; reg++)
- chip->saved_regs_mpu[reg] = inw(chip->mpu_port + reg * 2);
- for (reg = 0; reg < AZF_IO_SIZE_SYNTH_PM / 2; reg++)
- chip->saved_regs_synth[reg] = inw(chip->synth_port + reg * 2);
+
+ for (reg = 0; reg < AZF_IO_SIZE_CODEC_PM / 2; ++reg)
+ chip->saved_regs_codec[reg] = inw(chip->codec_io + reg * 2);
+ for (reg = 0; reg < AZF_IO_SIZE_GAME_PM / 2; ++reg)
+ chip->saved_regs_game[reg] = inw(chip->game_io + reg * 2);
+ for (reg = 0; reg < AZF_IO_SIZE_MPU_PM / 2; ++reg)
+ chip->saved_regs_mpu[reg] = inw(chip->mpu_io + reg * 2);
+ for (reg = 0; reg < AZF_IO_SIZE_OPL3_PM / 2; ++reg)
+ chip->saved_regs_opl3[reg] = inw(chip->opl3_io + reg * 2);
pci_disable_device(pci);
pci_save_state(pci);
@@ -1927,7 +2329,7 @@ snd_azf3328_resume(struct pci_dev *pci)
{
struct snd_card *card = pci_get_drvdata(pci);
struct snd_azf3328 *chip = card->private_data;
- int reg;
+ unsigned reg;
pci_set_power_state(pci, PCI_D0);
pci_restore_state(pci);
@@ -1939,23 +2341,21 @@ snd_azf3328_resume(struct pci_dev *pci)
}
pci_set_master(pci);
- for (reg = 0; reg < AZF_IO_SIZE_IO2_PM / 2; reg++)
- outw(chip->saved_regs_io2[reg], chip->io2_port + reg * 2);
- for (reg = 0; reg < AZF_IO_SIZE_MPU_PM / 2; reg++)
- outw(chip->saved_regs_mpu[reg], chip->mpu_port + reg * 2);
- for (reg = 0; reg < AZF_IO_SIZE_SYNTH_PM / 2; reg++)
- outw(chip->saved_regs_synth[reg], chip->synth_port + reg * 2);
- for (reg = 0; reg < AZF_IO_SIZE_MIXER_PM / 2; reg++)
- outw(chip->saved_regs_mixer[reg], chip->mixer_port + reg * 2);
- for (reg = 0; reg < AZF_IO_SIZE_CODEC_PM / 2; reg++)
- outw(chip->saved_regs_codec[reg], chip->codec_port + reg * 2);
+ for (reg = 0; reg < AZF_IO_SIZE_GAME_PM / 2; ++reg)
+ outw(chip->saved_regs_game[reg], chip->game_io + reg * 2);
+ for (reg = 0; reg < AZF_IO_SIZE_MPU_PM / 2; ++reg)
+ outw(chip->saved_regs_mpu[reg], chip->mpu_io + reg * 2);
+ for (reg = 0; reg < AZF_IO_SIZE_OPL3_PM / 2; ++reg)
+ outw(chip->saved_regs_opl3[reg], chip->opl3_io + reg * 2);
+ for (reg = 0; reg < AZF_IO_SIZE_MIXER_PM / 2; ++reg)
+ outw(chip->saved_regs_mixer[reg], chip->mixer_io + reg * 2);
+ for (reg = 0; reg < AZF_IO_SIZE_CODEC_PM / 2; ++reg)
+ outw(chip->saved_regs_codec[reg], chip->codec_io + reg * 2);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
-#endif
-
-
+#endif /* CONFIG_PM */
static struct pci_driver driver = {
diff --git a/sound/pci/azt3328.h b/sound/pci/azt3328.h
index 679fa992e2bc..3448fd626f80 100644
--- a/sound/pci/azt3328.h
+++ b/sound/pci/azt3328.h
@@ -54,7 +54,10 @@
#define SOUNDFORMAT_XTAL1 0x00
#define SOUNDFORMAT_XTAL2 0x01
/* all _SUSPECTED_ values are not used by Windows drivers, so we don't
- * have any hard facts, only rough measurements */
+ * have any hard facts, only rough measurements.
+ * All we know is that the crystal used on the board has 24.576MHz,
+ * like many soundcards (which results in the frequencies below when
+ * using certain divider values selected by the values below) */
#define SOUNDFORMAT_FREQ_SUSPECTED_4000 0x0c | SOUNDFORMAT_XTAL1
#define SOUNDFORMAT_FREQ_SUSPECTED_4800 0x0a | SOUNDFORMAT_XTAL1
#define SOUNDFORMAT_FREQ_5510 0x0c | SOUNDFORMAT_XTAL2
@@ -72,6 +75,26 @@
#define SOUNDFORMAT_FLAG_16BIT 0x0010
#define SOUNDFORMAT_FLAG_2CHANNELS 0x0020
+/* define frequency helpers, for maximum value safety */
+enum {
+#define AZF_FREQ(rate) AZF_FREQ_##rate = rate
+ 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),
+#undef AZF_FREQ
+} AZF_FREQUENCIES;
+
/** recording area (see also: playback bit flag definitions) **/
#define IDX_IO_REC_FLAGS 0x20 /* ??, PU:0x0000 */
#define IDX_IO_REC_IRQTYPE 0x22 /* ??, PU:0x0000 */
@@ -97,40 +120,164 @@
/** DirectX timer, main interrupt area (FIXME: and something else?) **/
#define IDX_IO_TIMER_VALUE 0x60 /* found this timer area by pure luck :-) */
- #define TIMER_VALUE_MASK 0x000fffffUL /* timer countdown value; triggers IRQ when timer is finished */
- #define TIMER_ENABLE_COUNTDOWN 0x01000000UL /* activate the timer countdown */
- #define TIMER_ENABLE_IRQ 0x02000000UL /* trigger timer IRQ on zero transition */
- #define TIMER_ACK_IRQ 0x04000000UL /* being set in IRQ handler in case port 0x00 (hmm, not port 0x64!?!?) had 0x0020 set upon IRQ handler */
+ /* timer countdown value; triggers IRQ when timer is finished */
+ #define TIMER_VALUE_MASK 0x000fffffUL
+ /* activate timer countdown */
+ #define TIMER_COUNTDOWN_ENABLE 0x01000000UL
+ /* trigger timer IRQ on zero transition */
+ #define TIMER_IRQ_ENABLE 0x02000000UL
+ /* being set in IRQ handler in case port 0x00 (hmm, not port 0x64!?!?)
+ * had 0x0020 set upon IRQ handler */
+ #define TIMER_IRQ_ACK 0x04000000UL
#define IDX_IO_IRQSTATUS 0x64
- #define IRQ_PLAYBACK 0x0001
- #define IRQ_RECORDING 0x0002
- #define IRQ_MPU401 0x0010
- #define IRQ_TIMER 0x0020 /* DirectX timer */
- #define IRQ_UNKNOWN1 0x0040 /* probably unused, or possibly I2S port? or gameport IRQ? */
- #define IRQ_UNKNOWN2 0x0080 /* probably unused, or possibly I2S port? or gameport IRQ? */
+ /* some IRQ bit in here might also be used to signal a power-management timer
+ * timeout, to request shutdown of the chip (e.g. AD1815JS has such a thing).
+ * Some OPL3 hardware (e.g. in LM4560) has some special timer hardware which
+ * can trigger an OPL3 timer IRQ, so maybe there's such a thing as well... */
+
+ #define IRQ_PLAYBACK 0x0001
+ #define IRQ_RECORDING 0x0002
+ #define IRQ_UNKNOWN1 0x0004 /* most probably I2S port */
+ #define IRQ_GAMEPORT 0x0008 /* Interrupt of Digital(ly) Enhanced Game Port */
+ #define IRQ_MPU401 0x0010
+ #define IRQ_TIMER 0x0020 /* DirectX timer */
+ #define IRQ_UNKNOWN2 0x0040 /* probably unused, or possibly I2S port? */
+ #define IRQ_UNKNOWN3 0x0080 /* probably unused, or possibly I2S port? */
#define IDX_IO_66H 0x66 /* writing 0xffff returns 0x0000 */
-#define IDX_IO_SOME_VALUE 0x68 /* this is set to e.g. 0x3ff or 0x300, and writable; maybe some buffer limit, but I couldn't find out more, PU:0x00ff */
-#define IDX_IO_6AH 0x6A /* this WORD can be set to have bits 0x0028 activated (FIXME: correct??); actually inhibits PCM playback!!! maybe power management?? */
- #define IO_6A_PAUSE_PLAYBACK 0x0200 /* bit 9; sure, this pauses playback, but what the heck is this really about?? */
-#define IDX_IO_6CH 0x6C
-#define IDX_IO_6EH 0x6E /* writing 0xffff returns 0x83fe */
-/* further I/O indices not saved/restored, so probably not used */
+ /* this is set to e.g. 0x3ff or 0x300, and writable;
+ * maybe some buffer limit, but I couldn't find out more, PU:0x00ff: */
+#define IDX_IO_SOME_VALUE 0x68
+ #define IO_68_RANDOM_TOGGLE1 0x0100 /* toggles randomly */
+ #define IO_68_RANDOM_TOGGLE2 0x0200 /* toggles randomly */
+ /* umm, nope, behaviour of these bits changes depending on what we wrote
+ * to 0x6b!! */
+
+/* this WORD can be set to have bits 0x0028 activated (FIXME: correct??);
+ * actually inhibits PCM playback!!! maybe power management??: */
+#define IDX_IO_6AH 0x6A
+ /* bit 5: enabling this will activate permanent counting of bytes 2/3
+ * at gameport I/O (0xb402/3) (equal values each) and cause
+ * gameport legacy I/O at 0x0200 to be _DISABLED_!
+ * Is this Digital Enhanced Game Port Enable??? Or maybe it's Testmode
+ * for Enhanced Digital Gameport (see 4D Wave DX card): */
+ #define IO_6A_SOMETHING1_GAMEPORT 0x0020
+ /* bit 8; sure, this _pauses_ playback (later resumes at same spot!),
+ * but what the heck is this really about??: */
+ #define IO_6A_PAUSE_PLAYBACK_BIT8 0x0100
+ /* bit 9; sure, this _pauses_ playback (later resumes at same spot!),
+ * but what the heck is this really about??: */
+ #define IO_6A_PAUSE_PLAYBACK_BIT9 0x0200
+ /* BIT8 and BIT9 are _NOT_ able to affect OPL3 MIDI playback,
+ * thus it suggests influence on PCM only!!
+ * However OTOH there seems to be no bit anywhere around here
+ * which is able to disable OPL3... */
+ /* bit 10: enabling this actually changes values at legacy gameport
+ * I/O address (0x200); is this enabling of the Digital Enhanced Game Port???
+ * Or maybe this simply switches off the NE558 circuit, since enabling this
+ * still lets us evaluate button states, but not axis states */
+ #define IO_6A_SOMETHING2_GAMEPORT 0x0400
+ /* writing 0x0300: causes quite some crackling during
+ * PC activity such as switching windows (PCI traffic??
+ * --> FIFO/timing settings???) */
+ /* writing 0x0100 plus/or 0x0200 inhibits playback */
+ /* since the Windows .INF file has Flag_Enable_JoyStick and
+ * Flag_Enable_SB_DOS_Emulation directly together, it stands to reason
+ * that some other bit in this same register might be responsible
+ * for SB DOS Emulation activation (note that the file did NOT define
+ * a switch for OPL3!) */
+#define IDX_IO_6CH 0x6C /* unknown; fully read-writable */
+#define IDX_IO_6EH 0x6E
+ /* writing 0xffff returns 0x83fe (or 0x03fe only).
+ * writing 0x83 (and only 0x83!!) to 0x6f will cause 0x6c to switch
+ * from 0000 to ffff. */
+/* further I/O indices not saved/restored and not readable after writing,
+ * so probably not used */
-/*** I/O 2 area port indices ***/
+
+/*** Gameport area port indices ***/
/* (only 0x06 of 0x08 bytes saved/restored by Windows driver) */
-#define AZF_IO_SIZE_IO2 0x08
-#define AZF_IO_SIZE_IO2_PM 0x06
+#define AZF_IO_SIZE_GAME 0x08
+#define AZF_IO_SIZE_GAME_PM 0x06
+
+enum {
+ AZF_GAME_LEGACY_IO_PORT = 0x200
+} AZF_GAME_CONFIGS;
+
+#define IDX_GAME_LEGACY_COMPATIBLE 0x00
+ /* in some operation mode, writing anything to this port
+ * triggers an interrupt:
+ * yup, that's in case IDX_GAME_01H has one of the
+ * axis measurement bits enabled
+ * (and of course one needs to have GAME_HWCFG_IRQ_ENABLE, too) */
+
+#define IDX_GAME_AXES_CONFIG 0x01
+ /* NOTE: layout of this register awfully similar (read: "identical??")
+ * to AD1815JS.pdf (p.29) */
+
+ /* enables axis 1 (X axis) measurement: */
+ #define GAME_AXES_ENABLE_1 0x01
+ /* enables axis 2 (Y axis) measurement: */
+ #define GAME_AXES_ENABLE_2 0x02
+ /* enables axis 3 (X axis) measurement: */
+ #define GAME_AXES_ENABLE_3 0x04
+ /* enables axis 4 (Y axis) measurement: */
+ #define GAME_AXES_ENABLE_4 0x08
+ /* selects the current axis to read the measured value of
+ * (at IDX_GAME_AXIS_VALUE):
+ * 00 = axis 1, 01 = axis 2, 10 = axis 3, 11 = axis 4: */
+ #define GAME_AXES_READ_MASK 0x30
+ /* enable to have the latch continuously accept ADC values
+ * (and continuously cause interrupts in case interrupts are enabled);
+ * AD1815JS.pdf says it's ~16ms interval there: */
+ #define GAME_AXES_LATCH_ENABLE 0x40
+ /* joystick data (measured axes) ready for reading: */
+ #define GAME_AXES_SAMPLING_READY 0x80
+
+ /* NOTE: other card specs (SiS960 and others!) state that the
+ * game position latches should be frozen when reading and be freed
+ * (== reset?) after reading!!!
+ * Freezing most likely means disabling 0x40 (GAME_AXES_LATCH_ENABLE),
+ * but how to free the value? */
+ /* An internet search for "gameport latch ADC" should provide some insight
+ * into how to program such a gameport system. */
+
+ /* writing 0xf0 to 01H once reset both counters to 0, in some special mode!?
+ * yup, in case 6AH 0x20 is not enabled
+ * (and 0x40 is sufficient, 0xf0 is not needed) */
+
+#define IDX_GAME_AXIS_VALUE 0x02
+ /* R: value of currently configured axis (word value!);
+ * W: trigger axis measurement */
+
+#define IDX_GAME_HWCONFIG 0x04
+ /* note: bits 4 to 7 are never set (== 0) when reading!
+ * --> reserved bits? */
+ /* enables IRQ notification upon axes measurement ready: */
+ #define GAME_HWCFG_IRQ_ENABLE 0x01
+ /* these bits choose a different frequency for the
+ * internal ADC counter increment.
+ * hmm, seems to be a combo of bits:
+ * 00 --> standard frequency
+ * 10 --> 1/2
+ * 01 --> 1/20
+ * 11 --> 1/200: */
+ #define GAME_HWCFG_ADC_COUNTER_FREQ_MASK 0x06
-#define IDX_IO2_LEGACY_ADDR 0x04
- #define LEGACY_SOMETHING 0x01 /* OPL3?? */
- #define LEGACY_JOY 0x08
+ /* enable gameport legacy I/O address (0x200)
+ * I was unable to locate any configurability for a different address: */
+ #define GAME_HWCFG_LEGACY_ADDRESS_ENABLE 0x08
+/*** MPU401 ***/
#define AZF_IO_SIZE_MPU 0x04
#define AZF_IO_SIZE_MPU_PM 0x04
-#define AZF_IO_SIZE_SYNTH 0x08
-#define AZF_IO_SIZE_SYNTH_PM 0x06
+/*** OPL3 synth ***/
+#define AZF_IO_SIZE_OPL3 0x08
+#define AZF_IO_SIZE_OPL3_PM 0x06
+/* hmm, given that a standard OPL3 has 4 registers only,
+ * there might be some enhanced functionality lurking at the end
+ * (especially since register 0x04 has a "non-empty" value 0xfe) */
/*** mixer I/O area port indices ***/
/* (only 0x22 of 0x40 bytes saved/restored by Windows driver)
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 05:47:45 +0000