Gitiles
Code Review Sign In
gerrit-public.fairphone.software / fp2-dev / kernel / msm / acb7e24208124d1a268b78ba5c9b94f80d427c45 / . / sound / pci / azt3328.c
blob: e9e9b5821d41f1c4287b96a1115a11a928b534e4 [file] [log] [blame]
/*
* azt3328.c - driver for Aztech AZF3328 based soundcards (e.g. PCI168).
* 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),
* 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!!
*
* 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.
* - 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
* - 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,
* 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, preferrably 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
* - test MPU401 MIDI playback etc.
* - 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...
* - 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 <asm/io.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/gameport.h>
#include <linux/moduleparam.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>
#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
#define DEBUG_MISC 0
#define DEBUG_CALLS 0
#define DEBUG_MIXER 0
#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
#if DEBUG_CALLS
#define snd_azf3328_dbgcalls(format, args...) printk(format, ##args)
#define snd_azf3328_dbgcallenter() printk(KERN_ERR "--> %s\n", __func__)
#define snd_azf3328_dbgcallleave() printk(KERN_ERR "<-- %s\n", __func__)
#else
#define snd_azf3328_dbgcalls(format, args...)
#define snd_azf3328_dbgcallenter()
#define snd_azf3328_dbgcallleave()
#endif
#if DEBUG_MIXER
#define snd_azf3328_dbgmixer(format, args...) printk(KERN_DEBUG format, ##args)
#else
#define snd_azf3328_dbgmixer(format, args...)
#endif
#if DEBUG_PLAY_REC
#define snd_azf3328_dbgplay(format, args...) printk(KERN_DEBUG format, ##args)
#else
#define snd_azf3328_dbgplay(format, args...)
#endif
#if DEBUG_MISC
#define snd_azf3328_dbgtimer(format, args...) printk(KERN_DEBUG format, ##args)
#else
#define snd_azf3328_dbgtimer(format, args...)
#endif
#if DEBUG_GAME
#define snd_azf3328_dbggame(format, args...) printk(KERN_DEBUG 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);
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 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.");
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_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_azf3328_audio_stream audio_stream[2];
struct snd_card *card;
struct snd_rawmidi *rmidi;
#ifdef SUPPORT_GAMEPORT
struct gameport *gameport;
int 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_codec_6AH;
#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_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
};
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, 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 inline void
snd_azf3328_codec_outb(const struct snd_azf3328 *chip, unsigned reg, u8 value)
{
outb(value, chip->codec_io + reg);
}
static inline u8
snd_azf3328_codec_inb(const struct snd_azf3328 *chip, unsigned reg)
{
return inb(chip->codec_io + reg);
}
static inline void
snd_azf3328_codec_outw(const struct snd_azf3328 *chip, unsigned reg, u16 value)
{
outw(value, chip->codec_io + reg);
}
static inline u16
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 inl(chip->codec_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 int
snd_azf3328_mixer_set_mute(const struct snd_azf3328 *chip,
unsigned reg, int do_mute
)
{
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 */
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,
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;
snd_azf3328_dbgcallenter();
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));
snd_azf3328_dbgcallleave();
}
/*
* 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_dbgcallenter();
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;
snd_azf3328_dbgcallleave();
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;
unsigned int oreg, val;
snd_azf3328_dbgcallenter();
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;
}
snd_azf3328_dbgmixer("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);
snd_azf3328_dbgcallleave();
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;
unsigned int oreg, nreg, val;
snd_azf3328_dbgcallenter();
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);
snd_azf3328_dbgmixer("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));
snd_azf3328_dbgcallleave();
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);
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = (reg.reg == IDX_MIXER_REC_SELECT) ? 2 : 1;
uinfo->value.enumerated.items = reg.enum_c;
if (uinfo->value.enumerated.item > reg.enum_c - 1U)
uinfo->value.enumerated.item = reg.enum_c - 1U;
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;
strcpy(uinfo->value.enumerated.name, p[uinfo->value.enumerated.item]);
return 0;
}
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);
snd_azf3328_dbgmixer("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;
unsigned int 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;
snd_azf3328_dbgmixer("put_enum: %02x to %04x, oreg %04x\n", reg.reg, val, oreg);
return (nreg != oreg);
}
static struct snd_kcontrol_new snd_azf3328_mixer_controls[] __devinitdata = {
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("PC Speaker Playback Switch", IDX_MIXER_PCBEEP, 15, 1),
AZF3328_MIXER_VOL_SPECIAL("PC Speaker 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 __devinitdata 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 __devinit
snd_azf3328_mixer_new(struct snd_azf3328 *chip)
{
struct snd_card *card;
const struct snd_kcontrol_new *sw;
unsigned int idx;
int err;
snd_azf3328_dbgcallenter();
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");
snd_azf3328_dbgcallleave();
return 0;
}
static int
snd_azf3328_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
int res;
snd_azf3328_dbgcallenter();
res = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
snd_azf3328_dbgcallleave();
return res;
}
static int
snd_azf3328_hw_free(struct snd_pcm_substream *substream)
{
snd_azf3328_dbgcallenter();
snd_pcm_lib_free_pages(substream);
snd_azf3328_dbgcallleave();
return 0;
}
static void
snd_azf3328_codec_setfmt(struct snd_azf3328 *chip,
unsigned reg,
enum azf_freq_t bitrate,
unsigned int format_width,
unsigned int channels
)
{
u16 val = 0xff00;
unsigned long flags;
snd_azf3328_dbgcallenter();
switch (bitrate) {
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);
/* 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? */
/* 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???) */
if (channels == 2)
val |= SOUNDFORMAT_FLAG_2CHANNELS;
if (format_width == 16)
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
* 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? */
if (reg == IDX_IO_PLAY_SOUNDFORMAT) /* only do it for playback */
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS,
snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS) |
DMA_PLAY_SOMETHING1 |
DMA_PLAY_SOMETHING2 |
SOMETHING_ALMOST_ALWAYS_SET |
DMA_EPILOGUE_SOMETHING |
DMA_SOMETHING_ELSE
);
spin_unlock_irqrestore(&chip->reg_lock, flags);
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 void
snd_azf3328_codec_reg_6AH_update(struct snd_azf3328 *chip,
unsigned bitmask,
int enable
)
{
if (enable)
chip->shadow_reg_codec_6AH &= ~bitmask;
else
chip->shadow_reg_codec_6AH |= bitmask;
snd_azf3328_dbgplay("6AH_update mask 0x%04x enable %d: val 0x%04x\n",
bitmask, enable, chip->shadow_reg_codec_6AH);
snd_azf3328_codec_outw(chip, IDX_IO_6AH, chip->shadow_reg_codec_6AH);
}
static inline void
snd_azf3328_codec_enable(struct snd_azf3328 *chip, int enable)
{
snd_azf3328_dbgplay("codec_enable %d\n", enable);
/* no idea what exactly is being done here, but I strongly assume it's
* PM related */
snd_azf3328_codec_reg_6AH_update(
chip, 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,
enum snd_azf3328_stream_index stream_type
)
{
snd_azf3328_dbgcallenter();
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;
portbase = chip->audio_stream[stream_type].portbase;
count_areas = size/2;
addr_area2 = addr+count_areas;
count_areas--; /* max. index */
snd_azf3328_dbgplay("set DMA: buf1 %08lx[%lu], buf2 %08lx[%lu]\n", addr, count_areas, addr_area2, count_areas);
/* build combined I/O buffer length word */
count_tmp = count_areas;
count_areas |= (count_tmp << 16);
spin_lock_irqsave(&chip->reg_lock, flags);
outl(addr, portbase + IDX_IO_PLAY_DMA_START_1);
outl(addr_area2, portbase + IDX_IO_PLAY_DMA_START_2);
outl(count_areas, portbase + IDX_IO_PLAY_DMA_LEN_1);
spin_unlock_irqrestore(&chip->reg_lock, flags);
}
snd_azf3328_dbgcallleave();
}
static int
snd_azf3328_playback_prepare(struct snd_pcm_substream *substream)
{
#if 0
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int size = snd_pcm_lib_buffer_bytes(substream);
unsigned int count = snd_pcm_lib_period_bytes(substream);
#endif
snd_azf3328_dbgcallenter();
#if 0
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, AZF_PLAYBACK);
#endif
snd_azf3328_dbgcallleave();
return 0;
}
static int
snd_azf3328_capture_prepare(struct snd_pcm_substream *substream)
{
#if 0
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int size = snd_pcm_lib_buffer_bytes(substream);
unsigned int count = snd_pcm_lib_period_bytes(substream);
#endif
snd_azf3328_dbgcallenter();
#if 0
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, AZF_CAPTURE);
#endif
snd_azf3328_dbgcallleave();
return 0;
}
static int
snd_azf3328_playback_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
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);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
snd_azf3328_dbgplay("START PLAYBACK\n");
/* mute WaveOut (avoid clicking during setup) */
previously_muted =
snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
snd_azf3328_codec_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT,
runtime->rate,
snd_pcm_format_width(runtime->format),
runtime->channels);
spin_lock(&chip->reg_lock);
/* 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);
snd_azf3328_setdmaa(chip, runtime->dma_addr,
snd_pcm_lib_period_bytes(substream),
snd_pcm_lib_buffer_bytes(substream),
AZF_PLAYBACK);
spin_lock(&chip->reg_lock);
#ifdef WIN9X
/* FIXME: enable playback/recording??? */
status1 |= DMA_PLAY_SOMETHING1 | DMA_PLAY_SOMETHING2;
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, status1);
/* start playback again */
/* FIXME: what is this value (0x0010)??? */
status1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING;
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, status1);
#else /* NT4 */
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS,
0x0000);
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS,
DMA_PLAY_SOMETHING1);
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS,
DMA_PLAY_SOMETHING1 |
DMA_PLAY_SOMETHING2);
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS,
DMA_RESUME |
SOMETHING_ALMOST_ALWAYS_SET |
DMA_EPILOGUE_SOMETHING |
DMA_SOMETHING_ELSE);
#endif
spin_unlock(&chip->reg_lock);
snd_azf3328_codec_activity(chip, AZF_PLAYBACK, 1);
/* now unmute WaveOut */
if (!previously_muted)
snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0);
snd_azf3328_dbgplay("STARTED PLAYBACK\n");
break;
case SNDRV_PCM_TRIGGER_RESUME:
snd_azf3328_dbgplay("RESUME PLAYBACK\n");
/* resume playback if we were active */
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 (avoid clicking during setup) */
previously_muted =
snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
spin_lock(&chip->reg_lock);
/* 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);
/* hmm, is this really required? we're resetting the same bit
* immediately thereafter... */
status1 |= DMA_PLAY_SOMETHING1;
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, status1);
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 */
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:
snd_azf3328_dbgplay("SUSPEND PLAYBACK\n");
/* make sure playback is stopped */
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS,
snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS) & ~DMA_RESUME);
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
snd_printk(KERN_ERR "FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n");
break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
snd_printk(KERN_ERR "FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n");
break;
default:
printk(KERN_ERR "FIXME: unknown trigger mode!\n");
return -EINVAL;
}
snd_azf3328_dbgcallleave();
return result;
}
/* this is just analogous to playback; I'm not quite sure whether recording
* should actually be triggered like that */
static int
snd_azf3328_capture_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
int result = 0;
unsigned int status1;
snd_azf3328_dbgcalls("snd_azf3328_capture_trigger cmd %d\n", cmd);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
snd_azf3328_dbgplay("START CAPTURE\n");
snd_azf3328_codec_setfmt(chip, IDX_IO_REC_SOUNDFORMAT,
runtime->rate,
snd_pcm_format_width(runtime->format),
runtime->channels);
spin_lock(&chip->reg_lock);
/* 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);
snd_azf3328_setdmaa(chip, runtime->dma_addr,
snd_pcm_lib_period_bytes(substream),
snd_pcm_lib_buffer_bytes(substream),
AZF_CAPTURE);
spin_lock(&chip->reg_lock);
#ifdef WIN9X
/* FIXME: enable playback/recording??? */
status1 |= DMA_PLAY_SOMETHING1 | DMA_PLAY_SOMETHING2;
snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, status1);
/* start capture again */
/* FIXME: what is this value (0x0010)??? */
status1 |= DMA_RESUME | DMA_EPILOGUE_SOMETHING;
snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, status1);
#else
snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS,
0x0000);
snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS,
DMA_PLAY_SOMETHING1);
snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS,
DMA_PLAY_SOMETHING1 |
DMA_PLAY_SOMETHING2);
snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS,
DMA_RESUME |
SOMETHING_ALMOST_ALWAYS_SET |
DMA_EPILOGUE_SOMETHING |
DMA_SOMETHING_ELSE);
#endif
spin_unlock(&chip->reg_lock);
snd_azf3328_codec_activity(chip, AZF_CAPTURE, 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 */
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);
/* 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);
status1 |= DMA_PLAY_SOMETHING1;
snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, status1);
status1 &= ~DMA_PLAY_SOMETHING1;
snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS, status1);
spin_unlock(&chip->reg_lock);
snd_azf3328_codec_activity(chip, AZF_CAPTURE, 0);
snd_azf3328_dbgplay("STOPPED CAPTURE\n");
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
snd_azf3328_dbgplay("SUSPEND CAPTURE\n");
/* make sure recording is stopped */
snd_azf3328_codec_outw(chip, IDX_IO_REC_FLAGS,
snd_azf3328_codec_inw(chip, IDX_IO_REC_FLAGS) & ~DMA_RESUME);
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
snd_printk(KERN_ERR "FIXME: SNDRV_PCM_TRIGGER_PAUSE_PUSH NIY!\n");
break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
snd_printk(KERN_ERR "FIXME: SNDRV_PCM_TRIGGER_PAUSE_RELEASE NIY!\n");
break;
default:
printk(KERN_ERR "FIXME: unknown trigger mode!\n");
return -EINVAL;
}
snd_azf3328_dbgcallleave();
return result;
}
static snd_pcm_uframes_t
snd_azf3328_playback_pointer(struct snd_pcm_substream *substream)
{
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
unsigned long bufptr, result;
snd_pcm_uframes_t frmres;
#ifdef QUERY_HARDWARE
bufptr = snd_azf3328_codec_inl(chip, IDX_IO_PLAY_DMA_START_1);
#else
bufptr = substream->runtime->dma_addr;
#endif
result = snd_azf3328_codec_inl(chip, IDX_IO_PLAY_DMA_CURRPOS);
/* calculate offset */
result -= bufptr;
frmres = bytes_to_frames( substream->runtime, result);
snd_azf3328_dbgplay("PLAY @ 0x%8lx, frames %8ld\n", result, frmres);
return frmres;
}
static snd_pcm_uframes_t
snd_azf3328_capture_pointer(struct snd_pcm_substream *substream)
{
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
unsigned long bufptr, result;
snd_pcm_uframes_t frmres;
#ifdef QUERY_HARDWARE
bufptr = snd_azf3328_codec_inl(chip, IDX_IO_REC_DMA_START_1);
#else
bufptr = substream->runtime->dma_addr;
#endif
result = snd_azf3328_codec_inl(chip, IDX_IO_REC_DMA_CURRPOS);
/* calculate offset */
result -= bufptr;
frmres = bytes_to_frames( substream->runtime, result);
snd_azf3328_dbgplay("REC @ 0x%8lx, frames %8ld\n", result, frmres);
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_codec_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!)
*/
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;
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 < 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;
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 = 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_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 inline void
snd_azf3328_irq_log_unknown_type(u8 which)
{
snd_azf3328_dbgplay(
"azt3328: unknown IRQ type (%x) occurred, please report!\n",
which
);
}
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_GAMEPORT|IRQ_MPU401|IRQ_TIMER)
))
return IRQ_NONE; /* must be interrupt for another device */
snd_azf3328_dbgplay(
"irq_count %ld! IDX_IO_PLAY_FLAGS %04x, "
"IDX_IO_PLAY_IRQTYPE %04x, IDX_IO_IRQSTATUS %04x\n",
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",
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_codec_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x07);
spin_unlock(&chip->reg_lock);
snd_azf3328_dbgplay("azt3328: timer IRQ\n");
}
if (status & IRQ_PLAYBACK) {
spin_lock(&chip->reg_lock);
which = snd_azf3328_codec_inb(chip, IDX_IO_PLAY_IRQTYPE);
/* ack all IRQ types immediately */
snd_azf3328_codec_outb(chip, IDX_IO_PLAY_IRQTYPE, which);
spin_unlock(&chip->reg_lock);
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,
snd_azf3328_codec_inl(
chip, IDX_IO_PLAY_DMA_CURRPOS
)
);
} else
printk(KERN_WARNING "azt3328: irq handler problem!\n");
if (which & IRQ_PLAY_SOMETHING)
snd_azf3328_irq_log_unknown_type(which);
}
if (status & IRQ_RECORDING) {
spin_lock(&chip->reg_lock);
which = snd_azf3328_codec_inb(chip, IDX_IO_REC_IRQTYPE);
/* ack all IRQ types immediately */
snd_azf3328_codec_outb(chip, IDX_IO_REC_IRQTYPE, which);
spin_unlock(&chip->reg_lock);
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,
snd_azf3328_codec_inl(
chip, IDX_IO_REC_DMA_CURRPOS
)
);
} else
printk(KERN_WARNING "azt3328: irq handler problem!\n");
if (which & IRQ_REC_SOMETHING)
snd_azf3328_irq_log_unknown_type(which);
}
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... */
snd_azf3328_dbgplay("azt3328: MPU401 IRQ\n");
}
return IRQ_HANDLED;
}
/*****************************************************************/
static const struct snd_pcm_hardware snd_azf3328_playback =
{
/* 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 = 65536,
.period_bytes_min = 64,
.period_bytes_max = 65536,
.periods_min = 1,
.periods_max = 1024,
/* FIXME: maybe that card actually has a FIFO?
* Hmm, it seems newer revisions do have one, but we still don't know
* its size... */
.fifo_size = 0,
};
static const struct snd_pcm_hardware snd_azf3328_capture =
{
/* FIXME */
.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 = 65536,
.period_bytes_min = 64,
.period_bytes_max = 65536,
.periods_min = 1,
.periods_max = 1024,
.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_playback_open(struct snd_pcm_substream *substream)
{
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
snd_azf3328_dbgcallenter();
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);
snd_azf3328_dbgcallleave();
return 0;
}
static int
snd_azf3328_capture_open(struct snd_pcm_substream *substream)
{
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
snd_azf3328_dbgcallenter();
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);
snd_azf3328_dbgcallleave();
return 0;
}
static int
snd_azf3328_playback_close(struct snd_pcm_substream *substream)
{
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
snd_azf3328_dbgcallenter();
chip->audio_stream[AZF_PLAYBACK].substream = NULL;
snd_azf3328_dbgcallleave();
return 0;
}
static int
snd_azf3328_capture_close(struct snd_pcm_substream *substream)
{
struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
snd_azf3328_dbgcallenter();
chip->audio_stream[AZF_CAPTURE].substream = NULL;
snd_azf3328_dbgcallleave();
return 0;
}
/******************************************************************/
static struct snd_pcm_ops snd_azf3328_playback_ops = {
.open = snd_azf3328_playback_open,
.close = snd_azf3328_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_azf3328_hw_params,
.hw_free = snd_azf3328_hw_free,
.prepare = snd_azf3328_playback_prepare,
.trigger = snd_azf3328_playback_trigger,
.pointer = snd_azf3328_playback_pointer
};
static struct snd_pcm_ops snd_azf3328_capture_ops = {
.open = snd_azf3328_capture_open,
.close = snd_azf3328_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_azf3328_hw_params,
.hw_free = snd_azf3328_hw_free,
.prepare = snd_azf3328_capture_prepare,
.trigger = snd_azf3328_capture_trigger,
.pointer = snd_azf3328_capture_pointer
};
static int __devinit
snd_azf3328_pcm(struct snd_azf3328 *chip, int device)
{
struct snd_pcm *pcm;
int err;
snd_azf3328_dbgcallenter();
if ((err = snd_pcm_new(chip->card, "AZF3328 DSP", device, 1, 1, &pcm)) < 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);
chip->pcm = pcm;
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
snd_azf3328_dbgcallleave();
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;
snd_azf3328_dbgcallenter();
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) */
snd_azf3328_dbgtimer("delay was too low (%d)!\n", delay);
delay = 49; /* minimum time is 49 ticks */
}
snd_azf3328_dbgtimer("setting timer countdown value %d, add COUNTDOWN|IRQ\n", delay);
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);
snd_azf3328_dbgcallleave();
return 0;
}
static int
snd_azf3328_timer_stop(struct snd_timer *timer)
{
struct snd_azf3328 *chip;
unsigned long flags;
snd_azf3328_dbgcallenter();
chip = snd_timer_chip(timer);
spin_lock_irqsave(&chip->reg_lock, flags);
/* disable timer countdown and interrupt */
/* 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();
return 0;
}
static int
snd_azf3328_timer_precise_resolution(struct snd_timer *timer,
unsigned long *num, unsigned long *den)
{
snd_azf3328_dbgcallenter();
*num = 1;
*den = 1024000 / seqtimer_scaling;
snd_azf3328_dbgcallleave();
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 __devinit
snd_azf3328_timer(struct snd_azf3328 *chip, int device)
{
struct snd_timer *timer = NULL;
struct snd_timer_id tid;
int err;
snd_azf3328_dbgcallenter();
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:
snd_azf3328_dbgcallleave();
return err;
}
/******************************************************************/
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 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_ERR "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)
{
#if DEBUG_MISC
u16 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)
);
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)
);
#endif /* DEBUG_MISC */
}
static int __devinit
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,
};
u16 tmp;
*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_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"
);
err = -ENXIO;
goto out_err;
}
err = pci_request_regions(pci, "Aztech AZF3328");
if (err < 0)
goto out_err;
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)) {
snd_printk(KERN_ERR "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;
/* 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 */
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);
spin_unlock_irq(&chip->reg_lock);
snd_card_set_dev(card, &pci->dev);
*rchip = chip;
err = 0;
goto out;
out_err:
if (chip)
snd_azf3328_free(chip);
pci_disable_device(pci);
out:
return err;
}
static int __devinit
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;
snd_azf3328_dbgcallenter();
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
dev++;
return -ENOENT;
}
err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
if (err < 0)
return err;
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;
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;
}
err = snd_azf3328_timer(chip, 0);
if (err < 0)
goto out_err;
err = snd_azf3328_pcm(chip, 0);
if (err < 0)
goto out_err;
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->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->codec_io, chip->irq);
err = snd_card_register(card);
if (err < 0)
goto out_err;
#ifdef MODULE
printk(
"azt3328: Sound driver for Aztech AZF3328-based soundcards such as PCI168.\n"
"azt3328: Hardware was completely undocumented, unfortunately.\n"
"azt3328: Feel free to contact andi AT lisas.de for bug reports etc.!\n"
"azt3328: 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:
snd_printk(KERN_ERR "azf3328: something failed, exiting\n");
snd_card_free(card);
out:
snd_azf3328_dbgcallleave();
return err;
}
static void __devexit
snd_azf3328_remove(struct pci_dev *pci)
{
snd_azf3328_dbgcallenter();
snd_card_free(pci_get_drvdata(pci));
pci_set_drvdata(pci, NULL);
snd_azf3328_dbgcallleave();
}
#ifdef CONFIG_PM
static int
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;
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_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_io + reg * 2);
/* manually store the one currently relevant write-only reg, too */
chip->saved_regs_codec[IDX_IO_6AH / 2] = chip->shadow_reg_codec_6AH;
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);
pci_set_power_state(pci, pci_choose_state(pci, state));
return 0;
}
static int
snd_azf3328_resume(struct pci_dev *pci)
{
struct snd_card *card = pci_get_drvdata(pci);
struct snd_azf3328 *chip = card->private_data;
unsigned reg;
pci_set_power_state(pci, PCI_D0);
pci_restore_state(pci);
if (pci_enable_device(pci) < 0) {
printk(KERN_ERR "azt3328: pci_enable_device failed, "
"disabling device\n");
snd_card_disconnect(card);
return -EIO;
}
pci_set_master(pci);
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 /* CONFIG_PM */
static struct pci_driver driver = {
.name = "AZF3328",
.id_table = snd_azf3328_ids,
.probe = snd_azf3328_probe,
.remove = __devexit_p(snd_azf3328_remove),
#ifdef CONFIG_PM
.suspend = snd_azf3328_suspend,
.resume = snd_azf3328_resume,
#endif
};
static int __init
alsa_card_azf3328_init(void)
{
int err;
snd_azf3328_dbgcallenter();
err = pci_register_driver(&driver);
snd_azf3328_dbgcallleave();
return err;
}
static void __exit
alsa_card_azf3328_exit(void)
{
snd_azf3328_dbgcallenter();
pci_unregister_driver(&driver);
snd_azf3328_dbgcallleave();
}
module_init(alsa_card_azf3328_init)
module_exit(alsa_card_azf3328_exit)