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linux/sound/pci/azt3328.c
David Howells 7d12e780e0 IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.

Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 15:10:12 +01:00

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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(&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;
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 */
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(&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 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);
/* 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);
/* now unmute WaveOut */
snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 0);
chip->is_playing = 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_setfmt(chip, IDX_IO_REC_SOUNDFORMAT,
runtime->rate,
snd_pcm_format_width(runtime->format),
runtime->channels);
spin_lock(&chip->reg_lock);
/* stop recording */
status1 = snd_azf3328_codec_inw(chip, IDX_IO_REC_FLAGS);
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),
1);
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);
chip->is_recording = 1;
snd_azf3328_dbgplay("STARTED CAPTURE\n");
break;
case SNDRV_PCM_TRIGGER_RESUME:
snd_azf3328_dbgplay("RESUME CAPTURE\n");
/* resume recording if we were active */
if (chip->is_recording)
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_STOP:
snd_azf3328_dbgplay("STOP CAPTURE\n");
spin_lock(&chip->reg_lock);
/* stop recording */
status1 = snd_azf3328_codec_inw(chip, IDX_IO_REC_FLAGS);
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);
chip->is_recording = 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 = inl(chip->codec_port+IDX_IO_PLAY_DMA_START_1);
#else
bufptr = substream->runtime->dma_addr;
#endif
result = inl(chip->codec_port+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 = inl(chip->codec_port+IDX_IO_REC_DMA_START_1);
#else
bufptr = substream->runtime->dma_addr;
#endif
result = inl(chip->codec_port+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;
}
static irqreturn_t
snd_azf3328_interrupt(int irq, void *dev_id)
{
struct snd_azf3328 *chip = dev_id;
u8 status, which;
static unsigned long irq_count;
status = snd_azf3328_codec_inb(chip, IDX_IO_IRQSTATUS);
/* fast path out, to ease interrupt sharing */
if (!(status & (IRQ_PLAYBACK|IRQ_RECORDING|IRQ_MPU401|IRQ_TIMER)))
return IRQ_NONE; /* must be interrupt for another device */
snd_azf3328_dbgplay("Interrupt %ld!\nIDX_IO_PLAY_FLAGS %04x, IDX_IO_PLAY_IRQTYPE %04x, IDX_IO_IRQSTATUS %04x\n",
irq_count,
snd_azf3328_codec_inw(chip, IDX_IO_PLAY_FLAGS),
snd_azf3328_codec_inw(chip, IDX_IO_PLAY_IRQTYPE),
status);
if (status & IRQ_TIMER) {
/* snd_azf3328_dbgplay("timer %ld\n", inl(chip->codec_port+IDX_IO_TIMER_VALUE) & TIMER_VALUE_MASK); */
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->playback_substream) {
snd_pcm_period_elapsed(chip->playback_substream);
snd_azf3328_dbgplay("PLAY period done (#%x), @ %x\n",
which,
inl(chip->codec_port+IDX_IO_PLAY_DMA_CURRPOS));
} else
snd_azf3328_dbgplay("azt3328: ouch, irq handler problem!\n");
if (which & IRQ_PLAY_SOMETHING)
snd_azf3328_dbgplay("azt3328: unknown play IRQ type occurred, please report!\n");
}
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->capture_substream) {
snd_pcm_period_elapsed(chip->capture_substream);
snd_azf3328_dbgplay("REC period done (#%x), @ %x\n",
which,
inl(chip->codec_port+IDX_IO_REC_DMA_CURRPOS));
} else
snd_azf3328_dbgplay("azt3328: ouch, irq handler problem!\n");
if (which & IRQ_REC_SOMETHING)
snd_azf3328_dbgplay("azt3328: unknown rec IRQ type occurred, please report!\n");
}
/* 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");
}
irq_count++;
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 = 4000,
.rate_max = 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 = 4000,
.rate_max = 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[] = {
4000, 4800, 5512, 6620, 8000, 9600, 11025, 13240, 16000, 22050, 32000,
44100, 48000, 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->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->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->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->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;
}
/******************************************************************/
#ifdef SUPPORT_JOYSTICK
static int __devinit
snd_azf3328_config_joystick(struct snd_azf3328 *chip, int dev)
{
struct gameport *gp;
struct resource *r;
if (!joystick[dev])
return -ENODEV;
if (!(r = request_region(0x200, 8, "AZF3328 gameport"))) {
printk(KERN_WARNING "azt3328: cannot reserve joystick ports\n");
return -EBUSY;
}
chip->gameport = gp = gameport_allocate_port();
if (!gp) {
printk(KERN_ERR "azt3328: cannot allocate memory for gameport\n");
release_and_free_resource(r);
return -ENOMEM;
}
gameport_set_name(gp, "AZF3328 Gameport");
gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
gameport_set_dev_parent(gp, &chip->pci->dev);
gp->io = 0x200;
gameport_set_port_data(gp, r);
snd_azf3328_io2_outb(chip, IDX_IO2_LEGACY_ADDR,
snd_azf3328_io2_inb(chip, IDX_IO2_LEGACY_ADDR) | LEGACY_JOY);
gameport_register_port(chip->gameport);
return 0;
}
static void
snd_azf3328_free_joystick(struct snd_azf3328 *chip)
{
if (chip->gameport) {
struct resource *r = gameport_get_port_data(chip->gameport);
gameport_unregister_port(chip->gameport);
chip->gameport = NULL;
/* disable gameport */
snd_azf3328_io2_outb(chip, IDX_IO2_LEGACY_ADDR,
snd_azf3328_io2_inb(chip, IDX_IO2_LEGACY_ADDR) & ~LEGACY_JOY);
release_and_free_resource(r);
}
}
#else
static inline int
snd_azf3328_config_joystick(struct snd_azf3328 *chip, int dev) { return -ENOSYS; }
static inline void
snd_azf3328_free_joystick(struct snd_azf3328 *chip) { }
#endif
/******************************************************************/
static int
snd_azf3328_free(struct snd_azf3328 *chip)
{
if (chip->irq < 0)
goto __end_hw;
/* reset (close) mixer */
snd_azf3328_mixer_set_mute(chip, IDX_MIXER_PLAY_MASTER, 1); /* first mute master volume */
snd_azf3328_mixer_outw(chip, IDX_MIXER_RESET, 0x0000);
/* interrupt setup - mask everything (FIXME!) */
/* well, at least we know how to disable the timer IRQ */
snd_azf3328_codec_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x00);
synchronize_irq(chip->irq);
__end_hw:
snd_azf3328_free_joystick(chip);
if (chip->irq >= 0)
free_irq(chip->irq, (void *)chip);
pci_release_regions(chip->pci);
pci_disable_device(chip->pci);
kfree(chip);
return 0;
}
static int
snd_azf3328_dev_free(struct snd_device *device)
{
struct snd_azf3328 *chip = device->device_data;
return snd_azf3328_free(chip);
}
/******************************************************************/
/*** NOTE: the physical timer resolution actually is 1024000 ticks per second,
*** 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_ENABLE_COUNTDOWN | TIMER_ENABLE_IRQ;
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_ACK_IRQ 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;
if ((err = snd_timer_new(chip->card, "AZF3328", &tid, &timer)) < 0) {
goto out;
}
strcpy(timer->name, "AZF3328 timer");
timer->private_data = chip;
timer->hw = snd_azf3328_timer_hw;
chip->timer = timer;
err = 0;
out:
snd_azf3328_dbgcallleave();
return err;
}
/******************************************************************/
#if 0
/* check whether a bit can be modified */
static void
snd_azf3328_test_bit(unsigned int 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 void
snd_azf3328_debug_show_ports(const struct snd_azf3328 *chip)
{
#if DEBUG_MISC
u16 tmp;
snd_azf3328_dbgmisc("codec_port 0x%lx, io2_port 0x%lx, mpu_port 0x%lx, synth_port 0x%lx, mixer_port 0x%lx, irq %d\n", chip->codec_port, chip->io2_port, chip->mpu_port, chip->synth_port, chip->mixer_port, chip->irq);
snd_azf3328_dbgmisc("io2 %02x %02x %02x %02x %02x %02x\n", snd_azf3328_io2_inb(chip, 0), snd_azf3328_io2_inb(chip, 1), snd_azf3328_io2_inb(chip, 2), snd_azf3328_io2_inb(chip, 3), snd_azf3328_io2_inb(chip, 4), snd_azf3328_io2_inb(chip, 5));
for (tmp=0; tmp <= 0x01; tmp += 1)
snd_azf3328_dbgmisc("0x%02x: opl 0x%04x, mpu300 0x%04x, mpu310 0x%04x, mpu320 0x%04x, mpu330 0x%04x\n", tmp, inb(0x388 + tmp), inb(0x300 + tmp), inb(0x310 + tmp), inb(0x320 + tmp), inb(0x330 + tmp));
for (tmp = 0; tmp <= 0x6E; tmp += 2)
snd_azf3328_dbgmisc("0x%02x: 0x%04x\n", tmp, snd_azf3328_codec_inb(chip, tmp));
#endif
}
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;
if ((err = pci_enable_device(pci)) < 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;
}
if ((err = pci_request_regions(pci, "Aztech AZF3328")) < 0) {
goto out_err;
}
chip->codec_port = pci_resource_start(pci, 0);
chip->io2_port = pci_resource_start(pci, 1);
chip->mpu_port = pci_resource_start(pci, 2);
chip->synth_port = pci_resource_start(pci, 3);
chip->mixer_port = pci_resource_start(pci, 4);
if (request_irq(pci->irq, snd_azf3328_interrupt, IRQF_DISABLED|IRQF_SHARED, card->shortname, (void *)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);
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
goto out_err;
}
/* create mixer interface & switches */
if ((err = snd_azf3328_mixer_new(chip)) < 0)
goto out_err;
#if 0
/* set very low bitrate to reduce noise and power consumption? */
snd_azf3328_setfmt(chip, IDX_IO_PLAY_SOUNDFORMAT, 5512, 8, 1);
#endif
/* 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);
snd_azf3328_codec_outb(chip, IDX_IO_TIMER_VALUE + 3, 0x00); /* disable timer */
spin_unlock_irq(&chip->reg_lock);
snd_card_set_dev(card, &pci->dev);
*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;
}
card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0 );
if (card == NULL)
return -ENOMEM;
strcpy(card->driver, "AZF3328");
strcpy(card->shortname, "Aztech AZF3328 (PCI168)");
if ((err = snd_azf3328_create(card, pci, pci_id->driver_data, &chip)) < 0) {
goto out_err;
}
card->private_data = chip;
if ((err = snd_mpu401_uart_new( card, 0, MPU401_HW_MPU401,
chip->mpu_port, MPU401_INFO_INTEGRATED,
pci->irq, 0, &chip->rmidi)) < 0) {
snd_printk(KERN_ERR "azf3328: no MPU-401 device at 0x%lx?\n", chip->mpu_port);
goto out_err;
}
if ((err = snd_azf3328_timer(chip, 0)) < 0) {
goto out_err;
}
if ((err = snd_azf3328_pcm(chip, 0)) < 0) {
goto out_err;
}
if (snd_opl3_create(card, chip->synth_port, chip->synth_port+2,
OPL3_HW_AUTO, 1, &opl3) < 0) {
snd_printk(KERN_ERR "azf3328: no OPL3 device at 0x%lx-0x%lx?\n",
chip->synth_port, chip->synth_port+2 );
} else {
if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
goto out_err;
}
}
opl3->private_data = chip;
sprintf(card->longname, "%s at 0x%lx, irq %i",
card->shortname, chip->codec_port, chip->irq);
if ((err = snd_card_register(card)) < 0) {
goto out_err;
}
#ifdef MODULE
printk(
"azt3328: Sound driver for Aztech AZF3328-based soundcards such as PCI168\n"
"azt3328: (hardware was completely undocumented - ZERO support from Aztech).\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
if (snd_azf3328_config_joystick(chip, dev) < 0)
snd_azf3328_io2_outb(chip, IDX_IO2_LEGACY_ADDR,
snd_azf3328_io2_inb(chip, IDX_IO2_LEGACY_ADDR) & ~LEGACY_JOY);
pci_set_drvdata(pci, card);
dev++;
err = 0;
goto out;
out_err:
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;
int reg;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
snd_pcm_suspend_all(chip->pcm);
for (reg = 0; reg < AZF_IO_SIZE_MIXER_PM / 2; reg++)
chip->saved_regs_mixer[reg] = inw(chip->mixer_port + reg * 2);
/* make sure to disable master volume etc. to prevent looping sound */
snd_azf3328_mixer_set_mute(chip, IDX_MIXER_PLAY_MASTER, 1);
snd_azf3328_mixer_set_mute(chip, IDX_MIXER_WAVEOUT, 1);
for (reg = 0; reg < AZF_IO_SIZE_CODEC_PM / 2; reg++)
chip->saved_regs_codec[reg] = inw(chip->codec_port + reg * 2);
for (reg = 0; reg < AZF_IO_SIZE_IO2_PM / 2; reg++)
chip->saved_regs_io2[reg] = inw(chip->io2_port + reg * 2);
for (reg = 0; reg < AZF_IO_SIZE_MPU_PM / 2; reg++)
chip->saved_regs_mpu[reg] = inw(chip->mpu_port + reg * 2);
for (reg = 0; reg < AZF_IO_SIZE_SYNTH_PM / 2; reg++)
chip->saved_regs_synth[reg] = inw(chip->synth_port + reg * 2);
pci_set_power_state(pci, PCI_D3hot);
pci_disable_device(pci);
pci_save_state(pci);
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;
int reg;
pci_restore_state(pci);
pci_enable_device(pci);
pci_set_power_state(pci, PCI_D0);
pci_set_master(pci);
for (reg = 0; reg < AZF_IO_SIZE_IO2_PM / 2; reg++)
outw(chip->saved_regs_io2[reg], chip->io2_port + reg * 2);
for (reg = 0; reg < AZF_IO_SIZE_MPU_PM / 2; reg++)
outw(chip->saved_regs_mpu[reg], chip->mpu_port + reg * 2);
for (reg = 0; reg < AZF_IO_SIZE_SYNTH_PM / 2; reg++)
outw(chip->saved_regs_synth[reg], chip->synth_port + reg * 2);
for (reg = 0; reg < AZF_IO_SIZE_MIXER_PM / 2; reg++)
outw(chip->saved_regs_mixer[reg], chip->mixer_port + reg * 2);
for (reg = 0; reg < AZF_IO_SIZE_CODEC_PM / 2; reg++)
outw(chip->saved_regs_codec[reg], chip->codec_port + reg * 2);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif
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)
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