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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /sound/pci/azt3328.c
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+/* 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 168nt4-125.zip 168win95-125.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!)
+ *
+ * GPL LICENSE
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * 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 80dB)
+ * 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 16bit 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 3D enhancement (said to be YAMAHA Ymersion)
+ * - built-in General DirectX timer having a 20 bits counter
+ * with 1us resolution (see below!)
+ * - I2S serial output port for external DAC
+ * [FIXME: 3.3V or 5V level? maximum rate is 66.2kHz right?]
+ * - 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 [24C02 SEEPROM chip]
+ * 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
+ * [TDA1517P chip]
+ *
+ * Note that this driver now is actually *better* than the Windows driver,
+ * since it additionally supports the card's 1MHz 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 (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.
+ * Overview (PCI ID/PCI subID/PCI rev.):
+ * - no DMA crackling on SiS735: 0x50DC/0x1801/16
+ * - unknown performance: 0x50DC/0x1801/10
+ * (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 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
+ * - use PCI_VDEVICE
+ * - verify driver status on x86_64
+ * - test multi-card driver operation
+ * - (ab)use 1MHz 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");
+MODULE_SUPPORTED_DEVICE("{{Aztech,AZF3328}}");
+
+#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
+#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 0x200 8", "dump mpu388 0x388 4", "dump joy 0xb400 8",
+ "dump codec00 0xa800 32", "dump mixer 0xb800 64", "dump synth 0xbc00 8",
+ possibly within a "while true; do ... sleep 1; done" loop.
+ Tweaking ports could be done using
+ VALSTRING="`printf "%02x" $value`"
+ printf "\x""$VALSTRING"|dd of=/dev/port seek=`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;
+
+#ifdef CONFIG_PM_SLEEP
+ /* 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];
+#endif
+};
+
+static const struct pci_device_id snd_azf3328_ids[] = {
+ { 0x122D, 0x50DC, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* PCI168/3328 */
+ { 0x122D, 0x80DA, 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(const struct snd_azf3328_codec_data *codec,
+ unsigned reg,
+ u32 value
+)
+{
+ outl(value, 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
+snd_azf3328_game_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value)
+{
+ outb(value, chip->game_io + reg);
+}
+
+static inline void
+snd_azf3328_game_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value)
+{
+ outw(value, chip->game_io + reg);
+}
+
+static inline u8
+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 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 0x80
+
+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, 0x0000);
+}
+
+#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 0x3f
+#define AZF_AC97_REG_UNSUPPORTED 0x8000
+#define AZF_AC97_REG_REAL_IO_READ 0x4000
+#define AZF_AC97_REG_REAL_IO_WRITE 0x2000
+#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 0x0400
+#define AZF_AC97_REG_EMU_IO_WRITE 0x0200
+#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 3D 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 0x68 since there's a PCI368 as well).
+ */
+static const unsigned int
+azf_emulated_ac97_vendor_id = 0x415a5401;
+
+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 & 0xffff;
+ 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 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 & 0xff;
+ r->lchan_shift = (val >> 8) & 0x0f;
+ r->rchan_shift = (val >> 12) & 0x0f;
+ r->mask = (val >> 16) & 0xff;
+ r->invert = (val >> 24) & 1;
+ r->stereo = (val >> 25) & 1;
+ r->enum_c = (val >> 26) & 0x0f;
+}
+
+/*
+ * 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, 0x1, 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(&reg, 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(&reg, 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(&reg, 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 >= 0x07) /* it's a volume control, so better take care */
+ snd_azf3328_mixer_write_volume_gradually(
+ chip, reg.reg, nreg >> 8, nreg & 0xff,
+ /* 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(&reg, 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(&reg, 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(&reg, 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 - 1U ||
+ ucontrol->value.enumerated.item[1] > reg.enum_c - 1U)
+ 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 - 1U)
+ 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 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, 0x1f, 1),
+ AZF3328_MIXER_SWITCH("PCM Playback Switch", IDX_MIXER_WAVEOUT, 15, 1),
+ AZF3328_MIXER_VOL_STEREO("PCM Playback Volume",
+ IDX_MIXER_WAVEOUT, 0x1f, 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, 0x1f, 1),
+ AZF3328_MIXER_SWITCH("CD Playback Switch", IDX_MIXER_CDAUDIO, 15, 1),
+ AZF3328_MIXER_VOL_STEREO("CD Playback Volume", IDX_MIXER_CDAUDIO, 0x1f, 1),
+ AZF3328_MIXER_SWITCH("Capture Switch", IDX_MIXER_REC_VOLUME, 15, 1),
+ AZF3328_MIXER_VOL_STEREO("Capture Volume", IDX_MIXER_REC_VOLUME, 0x0f, 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, 0x1f, 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, 0x1f, 1),
+ AZF3328_MIXER_SWITCH("Beep Playback Switch", IDX_MIXER_PCBEEP, 15, 1),
+ AZF3328_MIXER_VOL_SPECIAL("Beep Playback Volume", IDX_MIXER_PCBEEP, 0x0f, 1, 1),
+ AZF3328_MIXER_SWITCH("Video Playback Switch", IDX_MIXER_VIDEO, 15, 1),
+ AZF3328_MIXER_VOL_STEREO("Video Playback Volume", IDX_MIXER_VIDEO, 0x1f, 1),
+ AZF3328_MIXER_SWITCH("Aux Playback Switch", IDX_MIXER_AUX, 15, 1),
+ AZF3328_MIXER_VOL_STEREO("Aux Playback Volume", IDX_MIXER_AUX, 0x1f, 1),
+ AZF3328_MIXER_SWITCH("Modem Playback Switch", IDX_MIXER_MODEMOUT, 15, 1),
+ AZF3328_MIXER_VOL_MONO("Modem Playback Volume", IDX_MIXER_MODEMOUT, 0x1f, 1),
+ AZF3328_MIXER_SWITCH("Modem Capture Switch", IDX_MIXER_MODEMIN, 15, 1),
+ AZF3328_MIXER_VOL_MONO("Modem Capture Volume", IDX_MIXER_MODEMIN, 0x1f, 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, 0x07, 1, 0),
+ AZF3328_MIXER_VOL_SPECIAL("Tone Control - Bass", IDX_MIXER_BASSTREBLE, 0x07, 9, 0),
+ AZF3328_MIXER_SWITCH("3D Control - Switch", IDX_MIXER_ADVCTL2, 13, 0),
+ AZF3328_MIXER_VOL_SPECIAL("3D Control - Width", IDX_MIXER_ADVCTL1, 0x07, 1, 0), /* "3D Width" */
+ AZF3328_MIXER_VOL_SPECIAL("3D Control - Depth", IDX_MIXER_ADVCTL1, 0x03, 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 u16 snd_azf3328_init_values[][2] = {
+ { IDX_MIXER_PLAY_MASTER, MIXER_MUTE_MASK|0x1f1f },
+ { IDX_MIXER_MODEMOUT, MIXER_MUTE_MASK|0x1f1f },
+ { IDX_MIXER_BASSTREBLE, 0x0000 },
+ { IDX_MIXER_PCBEEP, MIXER_MUTE_MASK|0x1f1f },
+ { IDX_MIXER_MODEMIN, MIXER_MUTE_MASK|0x1f1f },
+ { IDX_MIXER_MIC, MIXER_MUTE_MASK|0x001f },
+ { IDX_MIXER_LINEIN, MIXER_MUTE_MASK|0x1f1f },
+ { IDX_MIXER_CDAUDIO, MIXER_MUTE_MASK|0x1f1f },
+ { IDX_MIXER_VIDEO, MIXER_MUTE_MASK|0x1f1f },
+ { IDX_MIXER_AUX, MIXER_MUTE_MASK|0x1f1f },
+ { IDX_MIXER_WAVEOUT, MIXER_MUTE_MASK|0x1f1f },
+ { IDX_MIXER_FMSYNTH, MIXER_MUTE_MASK|0x1f1f },
+ { IDX_MIXER_REC_VOLUME, MIXER_MUTE_MASK|0x0707 },
+};
+
+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, 0x0000);
+
+ /* 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) {
+ if ((err = snd_ctl_add(chip->card, snd_ctl_new1(sw, chip))) < 0)
+ return err;
+ }
+ snd_component_add(card, "AZF3328 mixer");
+ strcpy(card->mixername, "AZF3328 mixer");
+
+ return 0;
+}
+#endif /* AZF_USE_AC97_LAYER */
+
+static int
+snd_azf3328_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
+}
+
+static int
+snd_azf3328_hw_free(struct snd_pcm_substream *substream)
+{
+ snd_pcm_lib_free_pages(substream);
+ return 0;
+}
+
+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 = 0xff00;
+ 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:
+ snd_printk(KERN_WARNING "unknown bitrate %d, assuming 44.1kHz!\n", bitrate);
+ /* fall-through */
+ 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 8/16bit 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;
+ } __attribute__((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, 0xffff);
+ 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,
+ 0x0000);
+ 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,
+ 0x02,
+ (freq_cfg & 1) != 0
+ );
+ snd_azf3328_io_reg_setb(
+ chip->game_io+IDX_GAME_HWCONFIG,
+ 0x04,
+ (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) & 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 < ARRAY_SIZE(chip->axes); ++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 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 = 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 < ARRAY_SIZE(chip->axes); i++) {
+ axes[i] = chip->axes[i];
+ if (axes[i] == 0xffff)
+ 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, 0x07);
+ 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 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 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 struct snd_pcm_ops snd_azf3328_playback_ops = {
+ .open = snd_azf3328_pcm_playback_open,
+ .close = snd_azf3328_pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_azf3328_hw_params,
+ .hw_free = snd_azf3328_hw_free,
+ .prepare = snd_azf3328_pcm_prepare,
+ .trigger = snd_azf3328_pcm_trigger,
+ .pointer = snd_azf3328_pcm_pointer
+};
+
+static struct snd_pcm_ops snd_azf3328_capture_ops = {
+ .open = snd_azf3328_pcm_capture_open,
+ .close = snd_azf3328_pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_azf3328_hw_params,
+ .hw_free = snd_azf3328_hw_free,
+ .prepare = snd_azf3328_pcm_prepare,
+ .trigger = snd_azf3328_pcm_trigger,
+ .pointer = snd_azf3328_pcm_pointer
+};
+
+static struct snd_pcm_ops snd_azf3328_i2s_out_ops = {
+ .open = snd_azf3328_pcm_i2s_out_open,
+ .close = snd_azf3328_pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = snd_azf3328_hw_params,
+ .hw_free = snd_azf3328_hw_free,
+ .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;
+ strcpy(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_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+ snd_dma_pci_data(chip->pci),
+ 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;
+ strcpy(pcm->name, chip->card->shortname);
+ chip->pcm[AZF_CODEC_I2S_OUT] = pcm;
+
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+ snd_dma_pci_data(chip->pci),
+ 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 0x03 is kept shown in control byte).
+ Simply manually poking 0x04 _once_ immediately successfully stops
+ the hardware/ALSA interrupt activity. */
+ snd_azf3328_ctrl_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x04);
+ 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;
+
+ strcpy(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 int
+snd_azf3328_free(struct snd_azf3328 *chip)
+{
+ if (chip->irq < 0)
+ goto __end_hw;
+
+ snd_azf3328_mixer_reset(chip);
+
+ 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 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 < 0x07; tmp += 1)
+ dev_dbg(chip->card->dev,
+ "mpu_io 0x%04x\n", inb(chip->mpu_io + tmp));
+
+ for (tmp = 0; tmp <= 0x07; tmp += 1)
+ dev_dbg(chip->card->dev,
+ "0x%02x: game200 0x%04x, game208 0x%04x\n",
+ tmp, inb(0x200 + tmp), inb(0x208 + tmp));
+
+ for (tmp = 0; tmp <= 0x01; 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(0x300 + tmp),
+ inb(0x310 + tmp),
+ inb(0x320 + tmp),
+ inb(0x330 + tmp),
+ inb(0x388 + tmp),
+ inb(0x38c + 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 **rchip)
+{
+ struct snd_azf3328 *chip;
+ int err;
+ static struct snd_device_ops ops = {
+ .dev_free = snd_azf3328_dev_free,
+ };
+ u8 dma_init;
+ enum snd_azf3328_codec_type codec_type;
+ struct snd_azf3328_codec_data *codec_setup;
+
+ *rchip = NULL;
+
+ err = pci_enable_device(pci);
+ if (err < 0)
+ return err;
+
+ chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+ if (chip == NULL) {
+ err = -ENOMEM;
+ goto out_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 (pci_set_dma_mask(pci, DMA_BIT_MASK(24)) < 0 ||
+ pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(24)) < 0) {
+ dev_err(card->dev,
+ "architecture does not support 24bit PCI busmaster DMA\n"
+ );
+ err = -ENXIO;
+ goto out_err;
+ }
+
+ err = pci_request_regions(pci, "Aztech AZF3328");
+ if (err < 0)
+ goto out_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 (request_irq(pci->irq, snd_azf3328_interrupt,
+ IRQF_SHARED, KBUILD_MODNAME, chip)) {
+ dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
+ err = -EBUSY;
+ goto out_err;
+ }
+ chip->irq = pci->irq;
+ pci_set_master(pci);
+ synchronize_irq(chip->irq);
+
+ snd_azf3328_debug_show_ports(chip);
+
+ err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
+ if (err < 0)
+ goto out_err;
+
+ /* create mixer interface & switches */
+ err = snd_azf3328_mixer_new(chip);
+ if (err < 0)
+ goto out_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 = 1;
+ 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);
+ }
+
+ *rchip = chip;
+
+ err = 0;
+ goto out;
+
+out_err:
+ if (chip)
+ snd_azf3328_free(chip);
+ pci_disable_device(pci);
+
+out:
+ return err;
+}
+
+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) {
+ err = -ENODEV;
+ goto out;
+ }
+ if (!enable[dev]) {
+ dev++;
+ err = -ENOENT;
+ goto out;
+ }
+
+ err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
+ 0, &card);
+ if (err < 0)
+ goto out;
+
+ strcpy(card->driver, "AZF3328");
+ strcpy(card->shortname, "Aztech AZF3328 (PCI168)");
+
+ err = snd_azf3328_create(card, pci, pci_id->driver_data, &chip);
+ if (err < 0)
+ goto out_err;
+
+ card->private_data = chip;
+
+ /* 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
+ );
+ goto out_err;
+ }
+
+ err = snd_azf3328_timer(chip, 0);
+ if (err < 0)
+ goto out_err;
+
+ err = snd_azf3328_pcm(chip);
+ if (err < 0)
+ goto out_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)
+ 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->ctrl_io, chip->irq);
+
+ err = snd_card_register(card);
+ if (err < 0)
+ goto out_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++;
+
+ err = 0;
+ goto out;
+
+out_err:
+ dev_err(card->dev, "something failed, exiting\n");
+ snd_card_free(card);
+
+out:
+ return err;
+}
+
+static void
+snd_azf3328_remove(struct pci_dev *pci)
+{
+ snd_card_free(pci_get_drvdata(pci));
+}
+
+#ifdef CONFIG_PM_SLEEP
+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 0x00) 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);
+
+ /* same pcm object for playback/capture */
+ snd_pcm_suspend_all(chip->pcm[AZF_CODEC_PLAYBACK]);
+ snd_pcm_suspend_all(chip->pcm[AZF_CODEC_I2S_OUT]);
+
+ 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 SIMPLE_DEV_PM_OPS(snd_azf3328_pm, snd_azf3328_suspend, snd_azf3328_resume);
+#define SND_AZF3328_PM_OPS &snd_azf3328_pm
+#else
+#define SND_AZF3328_PM_OPS NULL
+#endif /* CONFIG_PM_SLEEP */
+
+static struct pci_driver azf3328_driver = {
+ .name = KBUILD_MODNAME,
+ .id_table = snd_azf3328_ids,
+ .probe = snd_azf3328_probe,
+ .remove = snd_azf3328_remove,
+ .driver = {
+ .pm = SND_AZF3328_PM_OPS,
+ },
+};
+
+module_pci_driver(azf3328_driver);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-03 06:44:49 +0000