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azt3328.c
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/*
* azt3328.c - driver for Aztech AZF3328 based soundcards (e.g. PCI168).
* Copyright (C) 2002, 2005 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)
*
* The AZF3328 chip (note: AZF3328, *not* AZT3328, that's just the driver name
* for compatibility reasons) has the following features:
*
* - 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
* - full duplex 16bit playback/record at independent sampling rate
* - MPU401 (+ legacy address support) FIXME: how to enable legacy addr??
* - game port (legacy address support)
* - built-in General DirectX timer having a 20 bits counter
* with 1us resolution (see below!)
* - I2S serial 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?)
* - 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"
*
* 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:
* - 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, not fully tested recently
*
* TODO
* - test MPU401 MIDI playback etc.
* - add some power micro-management (disable various units of the card
* as long as they're unused). However this requires I/O ports which I
* 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)
*/
#include <sound/driver.h>
#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_JOYSTICK 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 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", __FUNCTION__)
#define snd_azf3328_dbgcallleave() printk(KERN_ERR "<-- %s\n", __FUNCTION__)
#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(format, ##args)
#else
#define snd_azf3328_dbgmixer(format, args...)
#endif
#if DEBUG_PLAY_REC
#define snd_azf3328_dbgplay(format, args...) printk(KERN_ERR format, ##args)
#else
#define snd_azf3328_dbgplay(format, args...)
#endif
#if DEBUG_MISC
#define snd_azf3328_dbgtimer(format, args...) printk(KERN_ERR format, ##args)
#else
#define snd_azf3328_dbgtimer(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.");
#ifdef SUPPORT_JOYSTICK
static int joystick[SNDRV_CARDS];
module_param_array(joystick, bool, NULL, 0444);
MODULE_PARM_DESC(joystick, "Enable joystick for AZF3328 soundcard.");
#endif
static int seqtimer_scaling = 128;
module_param(seqtimer_scaling, int, 0444);
MODULE_PARM_DESC(seqtimer_scaling, "Set 1024000Hz sequencer timer scale factor (lockup danger!). Default 128.");
struct snd_azf3328 {
/* often-used fields towards beginning, then grouped */
unsigned long codec_port;
unsigned long io2_port;
unsigned long mpu_port;
unsigned long synth_port;
unsigned long mixer_port;
spinlock_t reg_lock;
struct snd_timer *timer;
struct snd_pcm *pcm;
struct snd_pcm_substream *playback_substream;
struct snd_pcm_substream *capture_substream;
unsigned int is_playing;
unsigned int is_recording;
struct snd_card *card;
struct snd_rawmidi *rmidi;
#ifdef SUPPORT_JOYSTICK
struct gameport *gameport;
#endif
struct pci_dev *pci;
int irq;
#ifdef CONFIG_PM
/* register value containers for power management
* Note: not always full I/O range preserved (just like Win driver!) */
u16 saved_regs_codec [AZF_IO_SIZE_CODEC_PM / 2];
u16 saved_regs_io2 [AZF_IO_SIZE_IO2_PM / 2];
u16 saved_regs_mpu [AZF_IO_SIZE_MPU_PM / 2];
u16 saved_regs_synth[AZF_IO_SIZE_SYNTH_PM / 2];
u16 saved_regs_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 inline void
snd_azf3328_codec_outb(const struct snd_azf3328 *chip, int reg, u8 value)
{
outb(value, chip->codec_port + reg);
}
static inline u8
snd_azf3328_codec_inb(const struct snd_azf3328 *chip, int reg)
{
return inb(chip->codec_port + reg);
}
static inline void
snd_azf3328_codec_outw(const struct snd_azf3328 *chip, int reg, u16 value)
{
outw(value, chip->codec_port + reg);
}
static inline u16
snd_azf3328_codec_inw(const struct snd_azf3328 *chip, int reg)
{
return inw(chip->codec_port + reg);
}
static inline void
snd_azf3328_codec_outl(const struct snd_azf3328 *chip, int reg, u32 value)
{
outl(value, chip->codec_port + reg);
}
static inline void
snd_azf3328_io2_outb(const struct snd_azf3328 *chip, int reg, u8 value)
{
outb(value, chip->io2_port + reg);
}
static inline u8
snd_azf3328_io2_inb(const struct snd_azf3328 *chip, int reg)
{
return inb(chip->io2_port + reg);
}
static inline void
snd_azf3328_mixer_outw(const struct snd_azf3328 *chip, int reg, u16 value)
{
outw(value, chip->mixer_port + reg);
}
static inline u16
snd_azf3328_mixer_inw(const struct snd_azf3328 *chip, int reg)
{
return inw(chip->mixer_port + reg);
}
static void
snd_azf3328_mixer_set_mute(const struct snd_azf3328 *chip, int reg, int do_mute)
{
unsigned long portbase = chip->mixer_port + reg + 1;
unsigned char oldval;
/* the mute bit is on the *second* (i.e. right) register of a
* left/right channel setting */
oldval = inb(portbase);
if (do_mute)
oldval |= 0x80;
else
oldval &= ~0x80;
outb(oldval, portbase);
}
static void
snd_azf3328_mixer_write_volume_gradually(const struct snd_azf3328 *chip, int reg, unsigned char dst_vol_left, unsigned char dst_vol_right, int chan_sel, int delay)
{
unsigned long portbase = chip->mixer_port + reg;
unsigned char curr_vol_left = 0, curr_vol_right = 0;
int left_done = 0, right_done = 0;
snd_azf3328_dbgcallenter();
if (chan_sel & SET_CHAN_LEFT)
curr_vol_left = inb(portbase + 1);
else
left_done = 1;
if (chan_sel & SET_CHAN_RIGHT)
curr_vol_right = inb(portbase + 0);
else
right_done = 1;
/* take care of muting flag (0x80) contained in left channel */
if (curr_vol_left & 0x80)
dst_vol_left |= 0x80;
else
dst_vol_left &= ~0x80;
do {
if (!left_done) {
if (curr_vol_left > dst_vol_left)
curr_vol_left--;
else
if (curr_vol_left < dst_vol_left)
curr_vol_left++;
else
left_done = 1;
outb(curr_vol_left, portbase + 1);
}
if (!right_done) {
if (curr_vol_right > dst_vol_right)
curr_vol_right--;
else
if (curr_vol_right < dst_vol_right)
curr_vol_right++;
else
right_done = 1;
/* 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);
}
if (delay)
mdelay(delay);
} while ((!left_done) || (!right_done));
snd_azf3328_dbgcallleave();
}
/*
* general mixer element
*/
struct azf3328_mixer_reg {
unsigned int 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(®, 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(®, 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(®, 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;
snd_azf3328_mixer_reg_decode(®, 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 */
strcpy(uinfo->value.enumerated.name, texts1[uinfo->value.enumerated.item]);
break;
case 9: /* mono sel source */
strcpy(uinfo->value.enumerated.name, texts2[uinfo->value.enumerated.item]);
break;
case 15: /* PCM Out Path */
strcpy(uinfo->value.enumerated.name, texts4[uinfo->value.enumerated.item]);
break;
}
} else
strcpy(uinfo->value.enumerated.name, texts3[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(®, 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(®, 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 const 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("Wave Playback Switch", IDX_MIXER_WAVEOUT, 15, 1),
AZF3328_MIXER_VOL_STEREO("Wave Playback Volume", IDX_MIXER_WAVEOUT, 0x1f, 1),
AZF3328_MIXER_SWITCH("Wave 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", 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 const 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();
snd_assert(chip != NULL && chip->card != NULL, 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_setfmt(struct snd_azf3328 *chip,
unsigned int reg,
unsigned int bitrate,
unsigned int format_width,
unsigned int channels
)
{
u16 val = 0xff00;
unsigned long flags;
snd_azf3328_dbgcallenter();
switch (bitrate) {
case 4000: val |= SOUNDFORMAT_FREQ_SUSPECTED_4000; break;
case 4800: val |= SOUNDFORMAT_FREQ_SUSPECTED_4800; break;
case 5512: val |= SOUNDFORMAT_FREQ_5510; break; /* the AZF3328 names it "5510" for some strange reason */
case 6620: val |= SOUNDFORMAT_FREQ_6620; break;
case 8000: val |= SOUNDFORMAT_FREQ_8000; break;
case 9600: val |= SOUNDFORMAT_FREQ_9600; break;
case 11025: val |= SOUNDFORMAT_FREQ_11025; break;
case 13240: val |= SOUNDFORMAT_FREQ_SUSPECTED_13240; break;
case 16000: val |= SOUNDFORMAT_FREQ_16000; break;
case 22050: val |= SOUNDFORMAT_FREQ_22050; break;
case 32000: val |= SOUNDFORMAT_FREQ_32000; break;
case 44100: val |= SOUNDFORMAT_FREQ_44100; break;
case 48000: val |= SOUNDFORMAT_FREQ_48000; break;
case 66200: val |= SOUNDFORMAT_FREQ_SUSPECTED_66200; break;
default:
snd_printk(KERN_WARNING "unknown bitrate %d, assuming 44.1kHz!\n", bitrate);
val |= SOUNDFORMAT_FREQ_44100;
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 void
snd_azf3328_setdmaa(struct snd_azf3328 *chip,
long unsigned int addr,
unsigned int count,
unsigned int size,
int do_recording)
{
unsigned long flags, portbase;
unsigned int is_running;
snd_azf3328_dbgcallenter();
if (do_recording) {
/* access capture registers, i.e. skip playback reg section */
portbase = chip->codec_port + 0x20;
is_running = chip->is_recording;
} else {
/* access the playback register section */
portbase = chip->codec_port + 0x00;
is_running = chip->is_playing;
}
/* AZF3328 uses a two buffer pointer DMA playback approach */
if (!is_running) {
unsigned long addr_area2;
unsigned long count_areas, count_tmp; /* width 32bit -- overflow!! */
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_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT,
runtime->rate,
snd_pcm_format_width(runtime->format),
runtime->channels);
snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, 0);
#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_setfmt(chip, IDX_IO_REC_SOUNDFORMAT,
runtime->rate,
snd_pcm_format_width(runtime->format),
runtime->channels);
snd_azf3328_setdmaa(chip, runtime->dma_addr, count, size, 1);
#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;
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 */
snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT,
runtime->rate,
snd_pcm_format_width(runtime->format),
runtime->channels);
spin_lock(&chip->reg_lock);
/* stop playback */
status1 = snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS);
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),
0);
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);
/* now unmute WaveOut */
snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0);
chip->is_playing = 1;
snd_azf3328_dbgplay("STARTED PLAYBACK\n");
break;
case SNDRV_PCM_TRIGGER_RESUME:
snd_azf3328_dbgplay("RESUME PLAYBACK\n");
/* resume playback if we were active */
if (chip->is_playing)
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_STOP:
snd_azf3328_dbgplay("STOP PLAYBACK\n");
/* mute WaveOut */
snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
spin_lock(&chip->reg_lock);
/* stop playback */
status1 = snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS);
status1 &= ~DMA_RESUME;
snd_azf3328_codec_outw(chip, IDX_IO_PLAY_FLAGS, status1);