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linux/sound/pci/nm256/nm256.c
Takashi Iwai 3733e424c4 ALSA: Use KBUILD_MODNAME for pci_driver.name entries 
The convention for pci_driver.name entry in kernel drivers seem to be
the module name or equivalent ones.  But, so far, almost all PCI sound
drivers use more verbose name like "ABC Xyz (12)", and these are fairly
confusing when appearing as a file name.

This patch converts the all pci_driver.name entries in sound/pci/* to
use KBUILD_MODNAME for more unified appearance.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-10 16:20:20 +02:00

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/*
* Driver for NeoMagic 256AV and 256ZX chipsets.
* Copyright (c) 2000 by Takashi Iwai <tiwai@suse.de>
*
* Based on nm256_audio.c OSS driver in linux kernel.
* The original author of OSS nm256 driver wishes to remain anonymous,
* so I just put my acknoledgment to him/her here.
* The original author's web page is found at
* http://www.uglx.org/sony.html
*
*
* 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
*/
#include <asm/io.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/moduleparam.h>
#include <linux/mutex.h>
#include <sound/core.h>
#include <sound/info.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#define CARD_NAME "NeoMagic 256AV/ZX"
#define DRIVER_NAME "NM256"
MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
MODULE_DESCRIPTION("NeoMagic NM256AV/ZX");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{NeoMagic,NM256AV},"
"{NeoMagic,NM256ZX}}");
/*
* some compile conditions.
*/
static int index = SNDRV_DEFAULT_IDX1; /* Index */
static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
static int playback_bufsize = 16;
static int capture_bufsize = 16;
static int force_ac97; /* disabled as default */
static int buffer_top; /* not specified */
static int use_cache; /* disabled */
static int vaio_hack; /* disabled */
static int reset_workaround;
static int reset_workaround_2;
module_param(index, int, 0444);
MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard.");
module_param(id, charp, 0444);
MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard.");
module_param(playback_bufsize, int, 0444);
MODULE_PARM_DESC(playback_bufsize, "DAC frame size in kB for " CARD_NAME " soundcard.");
module_param(capture_bufsize, int, 0444);
MODULE_PARM_DESC(capture_bufsize, "ADC frame size in kB for " CARD_NAME " soundcard.");
module_param(force_ac97, bool, 0444);
MODULE_PARM_DESC(force_ac97, "Force to use AC97 codec for " CARD_NAME " soundcard.");
module_param(buffer_top, int, 0444);
MODULE_PARM_DESC(buffer_top, "Set the top address of audio buffer for " CARD_NAME " soundcard.");
module_param(use_cache, bool, 0444);
MODULE_PARM_DESC(use_cache, "Enable the cache for coefficient table access.");
module_param(vaio_hack, bool, 0444);
MODULE_PARM_DESC(vaio_hack, "Enable workaround for Sony VAIO notebooks.");
module_param(reset_workaround, bool, 0444);
MODULE_PARM_DESC(reset_workaround, "Enable AC97 RESET workaround for some laptops.");
module_param(reset_workaround_2, bool, 0444);
MODULE_PARM_DESC(reset_workaround_2, "Enable extended AC97 RESET workaround for some other laptops.");
/* just for backward compatibility */
static int enable;
module_param(enable, bool, 0444);
/*
* hw definitions
*/
/* The BIOS signature. */
#define NM_SIGNATURE 0x4e4d0000
/* Signature mask. */
#define NM_SIG_MASK 0xffff0000
/* Size of the second memory area. */
#define NM_PORT2_SIZE 4096
/* The base offset of the mixer in the second memory area. */
#define NM_MIXER_OFFSET 0x600
/* The maximum size of a coefficient entry. */
#define NM_MAX_PLAYBACK_COEF_SIZE 0x5000
#define NM_MAX_RECORD_COEF_SIZE 0x1260
/* The interrupt register. */
#define NM_INT_REG 0xa04
/* And its bits. */
#define NM_PLAYBACK_INT 0x40
#define NM_RECORD_INT 0x100
#define NM_MISC_INT_1 0x4000
#define NM_MISC_INT_2 0x1
#define NM_ACK_INT(chip, X) snd_nm256_writew(chip, NM_INT_REG, (X) << 1)
/* The AV's "mixer ready" status bit and location. */
#define NM_MIXER_STATUS_OFFSET 0xa04
#define NM_MIXER_READY_MASK 0x0800
#define NM_MIXER_PRESENCE 0xa06
#define NM_PRESENCE_MASK 0x0050
#define NM_PRESENCE_VALUE 0x0040
/*
* For the ZX. It uses the same interrupt register, but it holds 32
* bits instead of 16.
*/
#define NM2_PLAYBACK_INT 0x10000
#define NM2_RECORD_INT 0x80000
#define NM2_MISC_INT_1 0x8
#define NM2_MISC_INT_2 0x2
#define NM2_ACK_INT(chip, X) snd_nm256_writel(chip, NM_INT_REG, (X))
/* The ZX's "mixer ready" status bit and location. */
#define NM2_MIXER_STATUS_OFFSET 0xa06
#define NM2_MIXER_READY_MASK 0x0800
/* The playback registers start from here. */
#define NM_PLAYBACK_REG_OFFSET 0x0
/* The record registers start from here. */
#define NM_RECORD_REG_OFFSET 0x200
/* The rate register is located 2 bytes from the start of the register area. */
#define NM_RATE_REG_OFFSET 2
/* Mono/stereo flag, number of bits on playback, and rate mask. */
#define NM_RATE_STEREO 1
#define NM_RATE_BITS_16 2
#define NM_RATE_MASK 0xf0
/* Playback enable register. */
#define NM_PLAYBACK_ENABLE_REG (NM_PLAYBACK_REG_OFFSET + 0x1)
#define NM_PLAYBACK_ENABLE_FLAG 1
#define NM_PLAYBACK_ONESHOT 2
#define NM_PLAYBACK_FREERUN 4
/* Mutes the audio output. */
#define NM_AUDIO_MUTE_REG (NM_PLAYBACK_REG_OFFSET + 0x18)
#define NM_AUDIO_MUTE_LEFT 0x8000
#define NM_AUDIO_MUTE_RIGHT 0x0080
/* Recording enable register. */
#define NM_RECORD_ENABLE_REG (NM_RECORD_REG_OFFSET + 0)
#define NM_RECORD_ENABLE_FLAG 1
#define NM_RECORD_FREERUN 2
/* coefficient buffer pointer */
#define NM_COEFF_START_OFFSET 0x1c
#define NM_COEFF_END_OFFSET 0x20
/* DMA buffer offsets */
#define NM_RBUFFER_START (NM_RECORD_REG_OFFSET + 0x4)
#define NM_RBUFFER_END (NM_RECORD_REG_OFFSET + 0x10)
#define NM_RBUFFER_WMARK (NM_RECORD_REG_OFFSET + 0xc)
#define NM_RBUFFER_CURRP (NM_RECORD_REG_OFFSET + 0x8)
#define NM_PBUFFER_START (NM_PLAYBACK_REG_OFFSET + 0x4)
#define NM_PBUFFER_END (NM_PLAYBACK_REG_OFFSET + 0x14)
#define NM_PBUFFER_WMARK (NM_PLAYBACK_REG_OFFSET + 0xc)
#define NM_PBUFFER_CURRP (NM_PLAYBACK_REG_OFFSET + 0x8)
struct nm256_stream {
struct nm256 *chip;
struct snd_pcm_substream *substream;
int running;
int suspended;
u32 buf; /* offset from chip->buffer */
int bufsize; /* buffer size in bytes */
void __iomem *bufptr; /* mapped pointer */
unsigned long bufptr_addr; /* physical address of the mapped pointer */
int dma_size; /* buffer size of the substream in bytes */
int period_size; /* period size in bytes */
int periods; /* # of periods */
int shift; /* bit shifts */
int cur_period; /* current period # */
};
struct nm256 {
struct snd_card *card;
void __iomem *cport; /* control port */
struct resource *res_cport; /* its resource */
unsigned long cport_addr; /* physical address */
void __iomem *buffer; /* buffer */
struct resource *res_buffer; /* its resource */
unsigned long buffer_addr; /* buffer phyiscal address */
u32 buffer_start; /* start offset from pci resource 0 */
u32 buffer_end; /* end offset */
u32 buffer_size; /* total buffer size */
u32 all_coeff_buf; /* coefficient buffer */
u32 coeff_buf[2]; /* coefficient buffer for each stream */
unsigned int coeffs_current: 1; /* coeff. table is loaded? */
unsigned int use_cache: 1; /* use one big coef. table */
unsigned int reset_workaround: 1; /* Workaround for some laptops to avoid freeze */
unsigned int reset_workaround_2: 1; /* Extended workaround for some other laptops to avoid freeze */
unsigned int in_resume: 1;
int mixer_base; /* register offset of ac97 mixer */
int mixer_status_offset; /* offset of mixer status reg. */
int mixer_status_mask; /* bit mask to test the mixer status */
int irq;
int irq_acks;
irq_handler_t interrupt;
int badintrcount; /* counter to check bogus interrupts */
struct mutex irq_mutex;
struct nm256_stream streams[2];
struct snd_ac97 *ac97;
unsigned short *ac97_regs; /* register caches, only for valid regs */
struct snd_pcm *pcm;
struct pci_dev *pci;
spinlock_t reg_lock;
};
/*
* include coefficient table
*/
#include "nm256_coef.c"
/*
* PCI ids
*/
static DEFINE_PCI_DEVICE_TABLE(snd_nm256_ids) = {
{PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO), 0},
{PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO), 0},
{PCI_VDEVICE(NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO), 0},
{0,},
};
MODULE_DEVICE_TABLE(pci, snd_nm256_ids);
/*
* lowlvel stuffs
*/
static inline u8
snd_nm256_readb(struct nm256 *chip, int offset)
{
return readb(chip->cport + offset);
}
static inline u16
snd_nm256_readw(struct nm256 *chip, int offset)
{
return readw(chip->cport + offset);
}
static inline u32
snd_nm256_readl(struct nm256 *chip, int offset)
{
return readl(chip->cport + offset);
}
static inline void
snd_nm256_writeb(struct nm256 *chip, int offset, u8 val)
{
writeb(val, chip->cport + offset);
}
static inline void
snd_nm256_writew(struct nm256 *chip, int offset, u16 val)
{
writew(val, chip->cport + offset);
}
static inline void
snd_nm256_writel(struct nm256 *chip, int offset, u32 val)
{
writel(val, chip->cport + offset);
}
static inline void
snd_nm256_write_buffer(struct nm256 *chip, void *src, int offset, int size)
{
offset -= chip->buffer_start;
#ifdef CONFIG_SND_DEBUG
if (offset < 0 || offset >= chip->buffer_size) {
snd_printk(KERN_ERR "write_buffer invalid offset = %d size = %d\n",
offset, size);
return;
}
#endif
memcpy_toio(chip->buffer + offset, src, size);
}
/*
* coefficient handlers -- what a magic!
*/
static u16
snd_nm256_get_start_offset(int which)
{
u16 offset = 0;
while (which-- > 0)
offset += coefficient_sizes[which];
return offset;
}
static void
snd_nm256_load_one_coefficient(struct nm256 *chip, int stream, u32 port, int which)
{
u32 coeff_buf = chip->coeff_buf[stream];
u16 offset = snd_nm256_get_start_offset(which);
u16 size = coefficient_sizes[which];
snd_nm256_write_buffer(chip, coefficients + offset, coeff_buf, size);
snd_nm256_writel(chip, port, coeff_buf);
/* ??? Record seems to behave differently than playback. */
if (stream == SNDRV_PCM_STREAM_PLAYBACK)
size--;
snd_nm256_writel(chip, port + 4, coeff_buf + size);
}
static void
snd_nm256_load_coefficient(struct nm256 *chip, int stream, int number)
{
/* The enable register for the specified engine. */
u32 poffset = (stream == SNDRV_PCM_STREAM_CAPTURE ?
NM_RECORD_ENABLE_REG : NM_PLAYBACK_ENABLE_REG);
u32 addr = NM_COEFF_START_OFFSET;
addr += (stream == SNDRV_PCM_STREAM_CAPTURE ?
NM_RECORD_REG_OFFSET : NM_PLAYBACK_REG_OFFSET);
if (snd_nm256_readb(chip, poffset) & 1) {
snd_printd("NM256: Engine was enabled while loading coefficients!\n");
return;
}
/* The recording engine uses coefficient values 8-15. */
number &= 7;
if (stream == SNDRV_PCM_STREAM_CAPTURE)
number += 8;
if (! chip->use_cache) {
snd_nm256_load_one_coefficient(chip, stream, addr, number);
return;
}
if (! chip->coeffs_current) {
snd_nm256_write_buffer(chip, coefficients, chip->all_coeff_buf,
NM_TOTAL_COEFF_COUNT * 4);
chip->coeffs_current = 1;
} else {
u32 base = chip->all_coeff_buf;
u32 offset = snd_nm256_get_start_offset(number);
u32 end_offset = offset + coefficient_sizes[number];
snd_nm256_writel(chip, addr, base + offset);
if (stream == SNDRV_PCM_STREAM_PLAYBACK)
end_offset--;
snd_nm256_writel(chip, addr + 4, base + end_offset);
}
}
/* The actual rates supported by the card. */
static unsigned int samplerates[8] = {
8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000,
};
static struct snd_pcm_hw_constraint_list constraints_rates = {
.count = ARRAY_SIZE(samplerates),
.list = samplerates,
.mask = 0,
};
/*
* return the index of the target rate
*/
static int
snd_nm256_fixed_rate(unsigned int rate)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(samplerates); i++) {
if (rate == samplerates[i])
return i;
}
snd_BUG();
return 0;
}
/*
* set sample rate and format
*/
static void
snd_nm256_set_format(struct nm256 *chip, struct nm256_stream *s,
struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
int rate_index = snd_nm256_fixed_rate(runtime->rate);
unsigned char ratebits = (rate_index << 4) & NM_RATE_MASK;
s->shift = 0;
if (snd_pcm_format_width(runtime->format) == 16) {
ratebits |= NM_RATE_BITS_16;
s->shift++;
}
if (runtime->channels > 1) {
ratebits |= NM_RATE_STEREO;
s->shift++;
}
runtime->rate = samplerates[rate_index];
switch (substream->stream) {
case SNDRV_PCM_STREAM_PLAYBACK:
snd_nm256_load_coefficient(chip, 0, rate_index); /* 0 = playback */
snd_nm256_writeb(chip,
NM_PLAYBACK_REG_OFFSET + NM_RATE_REG_OFFSET,
ratebits);
break;
case SNDRV_PCM_STREAM_CAPTURE:
snd_nm256_load_coefficient(chip, 1, rate_index); /* 1 = record */
snd_nm256_writeb(chip,
NM_RECORD_REG_OFFSET + NM_RATE_REG_OFFSET,
ratebits);
break;
}
}
/* acquire interrupt */
static int snd_nm256_acquire_irq(struct nm256 *chip)
{
mutex_lock(&chip->irq_mutex);
if (chip->irq < 0) {
if (request_irq(chip->pci->irq, chip->interrupt, IRQF_SHARED,
chip->card->driver, chip)) {
snd_printk(KERN_ERR "unable to grab IRQ %d\n", chip->pci->irq);
mutex_unlock(&chip->irq_mutex);
return -EBUSY;
}
chip->irq = chip->pci->irq;
}
chip->irq_acks++;
mutex_unlock(&chip->irq_mutex);
return 0;
}
/* release interrupt */
static void snd_nm256_release_irq(struct nm256 *chip)
{
mutex_lock(&chip->irq_mutex);
if (chip->irq_acks > 0)
chip->irq_acks--;
if (chip->irq_acks == 0 && chip->irq >= 0) {
free_irq(chip->irq, chip);
chip->irq = -1;
}
mutex_unlock(&chip->irq_mutex);
}
/*
* start / stop
*/
/* update the watermark (current period) */
static void snd_nm256_pcm_mark(struct nm256 *chip, struct nm256_stream *s, int reg)
{
s->cur_period++;
s->cur_period %= s->periods;
snd_nm256_writel(chip, reg, s->buf + s->cur_period * s->period_size);
}
#define snd_nm256_playback_mark(chip, s) snd_nm256_pcm_mark(chip, s, NM_PBUFFER_WMARK)
#define snd_nm256_capture_mark(chip, s) snd_nm256_pcm_mark(chip, s, NM_RBUFFER_WMARK)
static void
snd_nm256_playback_start(struct nm256 *chip, struct nm256_stream *s,
struct snd_pcm_substream *substream)
{
/* program buffer pointers */
snd_nm256_writel(chip, NM_PBUFFER_START, s->buf);
snd_nm256_writel(chip, NM_PBUFFER_END, s->buf + s->dma_size - (1 << s->shift));
snd_nm256_writel(chip, NM_PBUFFER_CURRP, s->buf);
snd_nm256_playback_mark(chip, s);
/* Enable playback engine and interrupts. */
snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG,
NM_PLAYBACK_ENABLE_FLAG | NM_PLAYBACK_FREERUN);
/* Enable both channels. */
snd_nm256_writew(chip, NM_AUDIO_MUTE_REG, 0x0);
}
static void
snd_nm256_capture_start(struct nm256 *chip, struct nm256_stream *s,
struct snd_pcm_substream *substream)
{
/* program buffer pointers */
snd_nm256_writel(chip, NM_RBUFFER_START, s->buf);
snd_nm256_writel(chip, NM_RBUFFER_END, s->buf + s->dma_size);
snd_nm256_writel(chip, NM_RBUFFER_CURRP, s->buf);
snd_nm256_capture_mark(chip, s);
/* Enable playback engine and interrupts. */
snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG,
NM_RECORD_ENABLE_FLAG | NM_RECORD_FREERUN);
}
/* Stop the play engine. */
static void
snd_nm256_playback_stop(struct nm256 *chip)
{
/* Shut off sound from both channels. */
snd_nm256_writew(chip, NM_AUDIO_MUTE_REG,
NM_AUDIO_MUTE_LEFT | NM_AUDIO_MUTE_RIGHT);
/* Disable play engine. */
snd_nm256_writeb(chip, NM_PLAYBACK_ENABLE_REG, 0);
}
static void
snd_nm256_capture_stop(struct nm256 *chip)
{
/* Disable recording engine. */
snd_nm256_writeb(chip, NM_RECORD_ENABLE_REG, 0);
}
static int
snd_nm256_playback_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct nm256 *chip = snd_pcm_substream_chip(substream);
struct nm256_stream *s = substream->runtime->private_data;
int err = 0;
if (snd_BUG_ON(!s))
return -ENXIO;
spin_lock(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_RESUME:
s->suspended = 0;
/* fallthru */
case SNDRV_PCM_TRIGGER_START:
if (! s->running) {
snd_nm256_playback_start(chip, s, substream);
s->running = 1;
}
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
s->suspended = 1;
/* fallthru */
case SNDRV_PCM_TRIGGER_STOP:
if (s->running) {
snd_nm256_playback_stop(chip);
s->running = 0;
}
break;
default:
err = -EINVAL;
break;
}
spin_unlock(&chip->reg_lock);
return err;
}
static int
snd_nm256_capture_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct nm256 *chip = snd_pcm_substream_chip(substream);
struct nm256_stream *s = substream->runtime->private_data;
int err = 0;
if (snd_BUG_ON(!s))
return -ENXIO;
spin_lock(&chip->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
if (! s->running) {
snd_nm256_capture_start(chip, s, substream);
s->running = 1;
}
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
if (s->running) {
snd_nm256_capture_stop(chip);
s->running = 0;
}
break;
default:
err = -EINVAL;
break;
}
spin_unlock(&chip->reg_lock);
return err;
}
/*
* prepare playback/capture channel
*/
static int snd_nm256_pcm_prepare(struct snd_pcm_substream *substream)
{
struct nm256 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct nm256_stream *s = runtime->private_data;
if (snd_BUG_ON(!s))
return -ENXIO;
s->dma_size = frames_to_bytes(runtime, substream->runtime->buffer_size);
s->period_size = frames_to_bytes(runtime, substream->runtime->period_size);
s->periods = substream->runtime->periods;
s->cur_period = 0;
spin_lock_irq(&chip->reg_lock);
s->running = 0;
snd_nm256_set_format(chip, s, substream);
spin_unlock_irq(&chip->reg_lock);
return 0;
}
/*
* get the current pointer
*/
static snd_pcm_uframes_t
snd_nm256_playback_pointer(struct snd_pcm_substream *substream)
{
struct nm256 *chip = snd_pcm_substream_chip(substream);
struct nm256_stream *s = substream->runtime->private_data;
unsigned long curp;
if (snd_BUG_ON(!s))
return 0;
curp = snd_nm256_readl(chip, NM_PBUFFER_CURRP) - (unsigned long)s->buf;
curp %= s->dma_size;
return bytes_to_frames(substream->runtime, curp);
}
static snd_pcm_uframes_t
snd_nm256_capture_pointer(struct snd_pcm_substream *substream)
{
struct nm256 *chip = snd_pcm_substream_chip(substream);
struct nm256_stream *s = substream->runtime->private_data;
unsigned long curp;
if (snd_BUG_ON(!s))
return 0;
curp = snd_nm256_readl(chip, NM_RBUFFER_CURRP) - (unsigned long)s->buf;
curp %= s->dma_size;
return bytes_to_frames(substream->runtime, curp);
}
/* Remapped I/O space can be accessible as pointer on i386 */
/* This might be changed in the future */
#ifndef __i386__
/*
* silence / copy for playback
*/
static int
snd_nm256_playback_silence(struct snd_pcm_substream *substream,
int channel, /* not used (interleaved data) */
snd_pcm_uframes_t pos,
snd_pcm_uframes_t count)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct nm256_stream *s = runtime->private_data;
count = frames_to_bytes(runtime, count);
pos = frames_to_bytes(runtime, pos);
memset_io(s->bufptr + pos, 0, count);
return 0;
}
static int
snd_nm256_playback_copy(struct snd_pcm_substream *substream,
int channel, /* not used (interleaved data) */
snd_pcm_uframes_t pos,
void __user *src,
snd_pcm_uframes_t count)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct nm256_stream *s = runtime->private_data;
count = frames_to_bytes(runtime, count);
pos = frames_to_bytes(runtime, pos);
if (copy_from_user_toio(s->bufptr + pos, src, count))
return -EFAULT;
return 0;
}
/*
* copy to user
*/
static int
snd_nm256_capture_copy(struct snd_pcm_substream *substream,
int channel, /* not used (interleaved data) */
snd_pcm_uframes_t pos,
void __user *dst,
snd_pcm_uframes_t count)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct nm256_stream *s = runtime->private_data;
count = frames_to_bytes(runtime, count);
pos = frames_to_bytes(runtime, pos);
if (copy_to_user_fromio(dst, s->bufptr + pos, count))
return -EFAULT;
return 0;
}
#endif /* !__i386__ */
/*
* update playback/capture watermarks
*/
/* spinlock held! */
static void
snd_nm256_playback_update(struct nm256 *chip)
{
struct nm256_stream *s;
s = &chip->streams[SNDRV_PCM_STREAM_PLAYBACK];
if (s->running && s->substream) {
spin_unlock(&chip->reg_lock);
snd_pcm_period_elapsed(s->substream);
spin_lock(&chip->reg_lock);
snd_nm256_playback_mark(chip, s);
}
}
/* spinlock held! */
static void
snd_nm256_capture_update(struct nm256 *chip)
{
struct nm256_stream *s;
s = &chip->streams[SNDRV_PCM_STREAM_CAPTURE];
if (s->running && s->substream) {
spin_unlock(&chip->reg_lock);
snd_pcm_period_elapsed(s->substream);
spin_lock(&chip->reg_lock);
snd_nm256_capture_mark(chip, s);
}
}
/*
* hardware info
*/
static struct snd_pcm_hardware snd_nm256_playback =
{
.info = SNDRV_PCM_INFO_MMAP_IOMEM |SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
/*SNDRV_PCM_INFO_PAUSE |*/
SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_KNOT/*24k*/ | SNDRV_PCM_RATE_8000_48000,
.rate_min = 8000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.periods_min = 2,
.periods_max = 1024,
.buffer_bytes_max = 128 * 1024,
.period_bytes_min = 256,
.period_bytes_max = 128 * 1024,
};
static struct snd_pcm_hardware snd_nm256_capture =
{
.info = SNDRV_PCM_INFO_MMAP_IOMEM | SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
/*SNDRV_PCM_INFO_PAUSE |*/
SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_KNOT/*24k*/ | SNDRV_PCM_RATE_8000_48000,
.rate_min = 8000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.periods_min = 2,
.periods_max = 1024,
.buffer_bytes_max = 128 * 1024,
.period_bytes_min = 256,
.period_bytes_max = 128 * 1024,
};
/* set dma transfer size */
static int snd_nm256_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
/* area and addr are already set and unchanged */
substream->runtime->dma_bytes = params_buffer_bytes(hw_params);
return 0;
}
/*
* open
*/
static void snd_nm256_setup_stream(struct nm256 *chip, struct nm256_stream *s,
struct snd_pcm_substream *substream,
struct snd_pcm_hardware *hw_ptr)
{
struct snd_pcm_runtime *runtime = substream->runtime;
s->running = 0;
runtime->hw = *hw_ptr;
runtime->hw.buffer_bytes_max = s->bufsize;
runtime->hw.period_bytes_max = s->bufsize / 2;
runtime->dma_area = (void __force *) s->bufptr;
runtime->dma_addr = s->bufptr_addr;
runtime->dma_bytes = s->bufsize;
runtime->private_data = s;
s->substream = substream;
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&constraints_rates);
}
static int
snd_nm256_playback_open(struct snd_pcm_substream *substream)
{
struct nm256 *chip = snd_pcm_substream_chip(substream);
if (snd_nm256_acquire_irq(chip) < 0)
return -EBUSY;
snd_nm256_setup_stream(chip, &chip->streams[SNDRV_PCM_STREAM_PLAYBACK],
substream, &snd_nm256_playback);
return 0;
}
static int
snd_nm256_capture_open(struct snd_pcm_substream *substream)
{
struct nm256 *chip = snd_pcm_substream_chip(substream);
if (snd_nm256_acquire_irq(chip) < 0)
return -EBUSY;
snd_nm256_setup_stream(chip, &chip->streams[SNDRV_PCM_STREAM_CAPTURE],
substream, &snd_nm256_capture);
return 0;
}
/*
* close - we don't have to do special..
*/
static int
snd_nm256_playback_close(struct snd_pcm_substream *substream)
{
struct nm256 *chip = snd_pcm_substream_chip(substream);
snd_nm256_release_irq(chip);
return 0;
}
static int
snd_nm256_capture_close(struct snd_pcm_substream *substream)
{
struct nm256 *chip = snd_pcm_substream_chip(substream);
snd_nm256_release_irq(chip);
return 0;
}
/*
* create a pcm instance
*/
static struct snd_pcm_ops snd_nm256_playback_ops = {
.open = snd_nm256_playback_open,
.close = snd_nm256_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_nm256_pcm_hw_params,
.prepare = snd_nm256_pcm_prepare,
.trigger = snd_nm256_playback_trigger,
.pointer = snd_nm256_playback_pointer,
#ifndef __i386__
.copy = snd_nm256_playback_copy,
.silence = snd_nm256_playback_silence,
#endif
.mmap = snd_pcm_lib_mmap_iomem,
};
static struct snd_pcm_ops snd_nm256_capture_ops = {
.open = snd_nm256_capture_open,
.close = snd_nm256_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_nm256_pcm_hw_params,
.prepare = snd_nm256_pcm_prepare,
.trigger = snd_nm256_capture_trigger,
.pointer = snd_nm256_capture_pointer,
#ifndef __i386__
.copy = snd_nm256_capture_copy,
#endif
.mmap = snd_pcm_lib_mmap_iomem,
};
static int __devinit
snd_nm256_pcm(struct nm256 *chip, int device)
{
struct snd_pcm *pcm;
int i, err;
for (i = 0; i < 2; i++) {
struct nm256_stream *s = &chip->streams[i];
s->bufptr = chip->buffer + (s->buf - chip->buffer_start);
s->bufptr_addr = chip->buffer_addr + (s->buf - chip->buffer_start);
}
err = snd_pcm_new(chip->card, chip->card->driver, device,
1, 1, &pcm);
if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_nm256_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_nm256_capture_ops);
pcm->private_data = chip;
pcm->info_flags = 0;
chip->pcm = pcm;
return 0;
}
/*
* Initialize the hardware.
*/
static void
snd_nm256_init_chip(struct nm256 *chip)
{
/* Reset everything. */
snd_nm256_writeb(chip, 0x0, 0x11);
snd_nm256_writew(chip, 0x214, 0);
/* stop sounds.. */
//snd_nm256_playback_stop(chip);
//snd_nm256_capture_stop(chip);
}
static irqreturn_t
snd_nm256_intr_check(struct nm256 *chip)
{
if (chip->badintrcount++ > 1000) {
/*
* I'm not sure if the best thing is to stop the card from
* playing or just release the interrupt (after all, we're in
* a bad situation, so doing fancy stuff may not be such a good
* idea).
*
* I worry about the card engine continuing to play noise
* over and over, however--that could become a very
* obnoxious problem. And we know that when this usually
* happens things are fairly safe, it just means the user's
* inserted a PCMCIA card and someone's spamming us with IRQ 9s.
*/
if (chip->streams[SNDRV_PCM_STREAM_PLAYBACK].running)
snd_nm256_playback_stop(chip);
if (chip->streams[SNDRV_PCM_STREAM_CAPTURE].running)
snd_nm256_capture_stop(chip);
chip->badintrcount = 0;
return IRQ_HANDLED;
}
return IRQ_NONE;
}
/*
* Handle a potential interrupt for the device referred to by DEV_ID.
*
* I don't like the cut-n-paste job here either between the two routines,
* but there are sufficient differences between the two interrupt handlers
* that parameterizing it isn't all that great either. (Could use a macro,
* I suppose...yucky bleah.)
*/
static irqreturn_t
snd_nm256_interrupt(int irq, void *dev_id)
{
struct nm256 *chip = dev_id;
u16 status;
u8 cbyte;
status = snd_nm256_readw(chip, NM_INT_REG);
/* Not ours. */
if (status == 0)
return snd_nm256_intr_check(chip);
chip->badintrcount = 0;
/* Rather boring; check for individual interrupts and process them. */
spin_lock(&chip->reg_lock);
if (status & NM_PLAYBACK_INT) {
status &= ~NM_PLAYBACK_INT;
NM_ACK_INT(chip, NM_PLAYBACK_INT);
snd_nm256_playback_update(chip);
}
if (status & NM_RECORD_INT) {
status &= ~NM_RECORD_INT;
NM_ACK_INT(chip, NM_RECORD_INT);
snd_nm256_capture_update(chip);
}
if (status & NM_MISC_INT_1) {
status &= ~NM_MISC_INT_1;
NM_ACK_INT(chip, NM_MISC_INT_1);
snd_printd("NM256: Got misc interrupt #1\n");
snd_nm256_writew(chip, NM_INT_REG, 0x8000);
cbyte = snd_nm256_readb(chip, 0x400);
snd_nm256_writeb(chip, 0x400, cbyte | 2);
}
if (status & NM_MISC_INT_2) {
status &= ~NM_MISC_INT_2;
NM_ACK_INT(chip, NM_MISC_INT_2);
snd_printd("NM256: Got misc interrupt #2\n");
cbyte = snd_nm256_readb(chip, 0x400);
snd_nm256_writeb(chip, 0x400, cbyte & ~2);
}
/* Unknown interrupt. */
if (status) {
snd_printd("NM256: Fire in the hole! Unknown status 0x%x\n",
status);
/* Pray. */
NM_ACK_INT(chip, status);
}
spin_unlock(&chip->reg_lock);
return IRQ_HANDLED;
}
/*
* Handle a potential interrupt for the device referred to by DEV_ID.
* This handler is for the 256ZX, and is very similar to the non-ZX
* routine.
*/
static irqreturn_t
snd_nm256_interrupt_zx(int irq, void *dev_id)
{
struct nm256 *chip = dev_id;
u32 status;
u8 cbyte;
status = snd_nm256_readl(chip, NM_INT_REG);
/* Not ours. */
if (status == 0)
return snd_nm256_intr_check(chip);
chip->badintrcount = 0;
/* Rather boring; check for individual interrupts and process them. */
spin_lock(&chip->reg_lock);
if (status & NM2_PLAYBACK_INT) {
status &= ~NM2_PLAYBACK_INT;
NM2_ACK_INT(chip, NM2_PLAYBACK_INT);
snd_nm256_playback_update(chip);
}
if (status & NM2_RECORD_INT) {
status &= ~NM2_RECORD_INT;
NM2_ACK_INT(chip, NM2_RECORD_INT);
snd_nm256_capture_update(chip);
}
if (status & NM2_MISC_INT_1) {
status &= ~NM2_MISC_INT_1;
NM2_ACK_INT(chip, NM2_MISC_INT_1);
snd_printd("NM256: Got misc interrupt #1\n");
cbyte = snd_nm256_readb(chip, 0x400);
snd_nm256_writeb(chip, 0x400, cbyte | 2);
}
if (status & NM2_MISC_INT_2) {
status &= ~NM2_MISC_INT_2;
NM2_ACK_INT(chip, NM2_MISC_INT_2);
snd_printd("NM256: Got misc interrupt #2\n");
cbyte = snd_nm256_readb(chip, 0x400);
snd_nm256_writeb(chip, 0x400, cbyte & ~2);
}
/* Unknown interrupt. */
if (status) {
snd_printd("NM256: Fire in the hole! Unknown status 0x%x\n",
status);
/* Pray. */
NM2_ACK_INT(chip, status);
}
spin_unlock(&chip->reg_lock);
return IRQ_HANDLED;
}
/*
* AC97 interface
*/
/*
* Waits for the mixer to become ready to be written; returns a zero value
* if it timed out.
*/
static int
snd_nm256_ac97_ready(struct nm256 *chip)
{
int timeout = 10;
u32 testaddr;
u16 testb;
testaddr = chip->mixer_status_offset;
testb = chip->mixer_status_mask;
/*
* Loop around waiting for the mixer to become ready.
*/
while (timeout-- > 0) {
if ((snd_nm256_readw(chip, testaddr) & testb) == 0)
return 1;
udelay(100);
}
return 0;
}
/*
* Initial register values to be written to the AC97 mixer.
* While most of these are identical to the reset values, we do this
* so that we have most of the register contents cached--this avoids
* reading from the mixer directly (which seems to be problematic,
* probably due to ignorance).
*/
struct initialValues {
unsigned short reg;
unsigned short value;
};
static struct initialValues nm256_ac97_init_val[] =
{
{ AC97_MASTER, 0x8000 },
{ AC97_HEADPHONE, 0x8000 },
{ AC97_MASTER_MONO, 0x8000 },
{ AC97_PC_BEEP, 0x8000 },
{ AC97_PHONE, 0x8008 },
{ AC97_MIC, 0x8000 },
{ AC97_LINE, 0x8808 },
{ AC97_CD, 0x8808 },
{ AC97_VIDEO, 0x8808 },
{ AC97_AUX, 0x8808 },
{ AC97_PCM, 0x8808 },
{ AC97_REC_SEL, 0x0000 },
{ AC97_REC_GAIN, 0x0B0B },
{ AC97_GENERAL_PURPOSE, 0x0000 },
{ AC97_3D_CONTROL, 0x8000 },
{ AC97_VENDOR_ID1, 0x8384 },
{ AC97_VENDOR_ID2, 0x7609 },
};
static int nm256_ac97_idx(unsigned short reg)
{
int i;
for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++)
if (nm256_ac97_init_val[i].reg == reg)
return i;
return -1;
}
/*
* some nm256 easily crash when reading from mixer registers
* thus we're treating it as a write-only mixer and cache the
* written values
*/
static unsigned short
snd_nm256_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
{
struct nm256 *chip = ac97->private_data;
int idx = nm256_ac97_idx(reg);
if (idx < 0)
return 0;
return chip->ac97_regs[idx];
}
/*
*/
static void
snd_nm256_ac97_write(struct snd_ac97 *ac97,
unsigned short reg, unsigned short val)
{
struct nm256 *chip = ac97->private_data;
int tries = 2;
int idx = nm256_ac97_idx(reg);
u32 base;
if (idx < 0)
return;
base = chip->mixer_base;
snd_nm256_ac97_ready(chip);
/* Wait for the write to take, too. */
while (tries-- > 0) {
snd_nm256_writew(chip, base + reg, val);
msleep(1); /* a little delay here seems better.. */
if (snd_nm256_ac97_ready(chip)) {
/* successful write: set cache */
chip->ac97_regs[idx] = val;
return;
}
}
snd_printd("nm256: ac97 codec not ready..\n");
}
/* static resolution table */
static struct snd_ac97_res_table nm256_res_table[] = {
{ AC97_MASTER, 0x1f1f },
{ AC97_HEADPHONE, 0x1f1f },
{ AC97_MASTER_MONO, 0x001f },
{ AC97_PC_BEEP, 0x001f },
{ AC97_PHONE, 0x001f },
{ AC97_MIC, 0x001f },
{ AC97_LINE, 0x1f1f },
{ AC97_CD, 0x1f1f },
{ AC97_VIDEO, 0x1f1f },
{ AC97_AUX, 0x1f1f },
{ AC97_PCM, 0x1f1f },
{ AC97_REC_GAIN, 0x0f0f },
{ } /* terminator */
};
/* initialize the ac97 into a known state */
static void
snd_nm256_ac97_reset(struct snd_ac97 *ac97)
{
struct nm256 *chip = ac97->private_data;
/* Reset the mixer. 'Tis magic! */
snd_nm256_writeb(chip, 0x6c0, 1);
if (! chip->reset_workaround) {
/* Dell latitude LS will lock up by this */
snd_nm256_writeb(chip, 0x6cc, 0x87);
}
if (! chip->reset_workaround_2) {
/* Dell latitude CSx will lock up by this */
snd_nm256_writeb(chip, 0x6cc, 0x80);
snd_nm256_writeb(chip, 0x6cc, 0x0);
}
if (! chip->in_resume) {
int i;
for (i = 0; i < ARRAY_SIZE(nm256_ac97_init_val); i++) {
/* preload the cache, so as to avoid even a single
* read of the mixer regs
*/
snd_nm256_ac97_write(ac97, nm256_ac97_init_val[i].reg,
nm256_ac97_init_val[i].value);
}
}
}
/* create an ac97 mixer interface */
static int __devinit
snd_nm256_mixer(struct nm256 *chip)
{
struct snd_ac97_bus *pbus;
struct snd_ac97_template ac97;
int err;
static struct snd_ac97_bus_ops ops = {
.reset = snd_nm256_ac97_reset,
.write = snd_nm256_ac97_write,
.read = snd_nm256_ac97_read,
};
chip->ac97_regs = kcalloc(ARRAY_SIZE(nm256_ac97_init_val),
sizeof(short), GFP_KERNEL);
if (! chip->ac97_regs)
return -ENOMEM;
if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0)
return err;
memset(&ac97, 0, sizeof(ac97));
ac97.scaps = AC97_SCAP_AUDIO; /* we support audio! */
ac97.private_data = chip;
ac97.res_table = nm256_res_table;
pbus->no_vra = 1;
err = snd_ac97_mixer(pbus, &ac97, &chip->ac97);
if (err < 0)
return err;
if (! (chip->ac97->id & (0xf0000000))) {
/* looks like an invalid id */
sprintf(chip->card->mixername, "%s AC97", chip->card->driver);
}
return 0;
}
/*
* See if the signature left by the NM256 BIOS is intact; if so, we use
* the associated address as the end of our audio buffer in the video
* RAM.
*/
static int __devinit
snd_nm256_peek_for_sig(struct nm256 *chip)
{
/* The signature is located 1K below the end of video RAM. */
void __iomem *temp;
/* Default buffer end is 5120 bytes below the top of RAM. */
unsigned long pointer_found = chip->buffer_end - 0x1400;
u32 sig;
temp = ioremap_nocache(chip->buffer_addr + chip->buffer_end - 0x400, 16);
if (temp == NULL) {
snd_printk(KERN_ERR "Unable to scan for card signature in video RAM\n");
return -EBUSY;
}
sig = readl(temp);
if ((sig & NM_SIG_MASK) == NM_SIGNATURE) {
u32 pointer = readl(temp + 4);
/*
* If it's obviously invalid, don't use it
*/
if (pointer == 0xffffffff ||
pointer < chip->buffer_size ||
pointer > chip->buffer_end) {
snd_printk(KERN_ERR "invalid signature found: 0x%x\n", pointer);
iounmap(temp);
return -ENODEV;
} else {
pointer_found = pointer;
printk(KERN_INFO "nm256: found card signature in video RAM: 0x%x\n",
pointer);
}
}
iounmap(temp);
chip->buffer_end = pointer_found;
return 0;
}
#ifdef CONFIG_PM
/*
* APM event handler, so the card is properly reinitialized after a power
* event.
*/
static int nm256_suspend(struct pci_dev *pci, pm_message_t state)
{
struct snd_card *card = pci_get_drvdata(pci);
struct nm256 *chip = card->private_data;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
snd_pcm_suspend_all(chip->pcm);
snd_ac97_suspend(chip->ac97);
chip->coeffs_current = 0;
pci_disable_device(pci);
pci_save_state(pci);
pci_set_power_state(pci, pci_choose_state(pci, state));
return 0;
}
static int nm256_resume(struct pci_dev *pci)
{
struct snd_card *card = pci_get_drvdata(pci);
struct nm256 *chip = card->private_data;
int i;
/* Perform a full reset on the hardware */
chip->in_resume = 1;
pci_set_power_state(pci, PCI_D0);
pci_restore_state(pci);
if (pci_enable_device(pci) < 0) {
printk(KERN_ERR "nm256: pci_enable_device failed, "
"disabling device\n");
snd_card_disconnect(card);
return -EIO;
}
pci_set_master(pci);
snd_nm256_init_chip(chip);
/* restore ac97 */
snd_ac97_resume(chip->ac97);
for (i = 0; i < 2; i++) {
struct nm256_stream *s = &chip->streams[i];
if (s->substream && s->suspended) {
spin_lock_irq(&chip->reg_lock);
snd_nm256_set_format(chip, s, s->substream);
spin_unlock_irq(&chip->reg_lock);
}
}
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
chip->in_resume = 0;
return 0;
}
#endif /* CONFIG_PM */
static int snd_nm256_free(struct nm256 *chip)
{
if (chip->streams[SNDRV_PCM_STREAM_PLAYBACK].running)
snd_nm256_playback_stop(chip);
if (chip->streams[SNDRV_PCM_STREAM_CAPTURE].running)
snd_nm256_capture_stop(chip);
if (chip->irq >= 0)
free_irq(chip->irq, chip);
if (chip->cport)
iounmap(chip->cport);
if (chip->buffer)
iounmap(chip->buffer);
release_and_free_resource(chip->res_cport);
release_and_free_resource(chip->res_buffer);
pci_disable_device(chip->pci);
kfree(chip->ac97_regs);
kfree(chip);
return 0;
}
static int snd_nm256_dev_free(struct snd_device *device)
{
struct nm256 *chip = device->device_data;
return snd_nm256_free(chip);
}
static int __devinit
snd_nm256_create(struct snd_card *card, struct pci_dev *pci,
struct nm256 **chip_ret)
{
struct nm256 *chip;
int err, pval;
static struct snd_device_ops ops = {
.dev_free = snd_nm256_dev_free,
};
u32 addr;
*chip_ret = NULL;
if ((err = pci_enable_device(pci)) < 0)
return err;
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (chip == NULL) {
pci_disable_device(pci);
return -ENOMEM;
}
chip->card = card;
chip->pci = pci;
chip->use_cache = use_cache;
spin_lock_init(&chip->reg_lock);
chip->irq = -1;
mutex_init(&chip->irq_mutex);
/* store buffer sizes in bytes */
chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize = playback_bufsize * 1024;
chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize = capture_bufsize * 1024;
/*
* The NM256 has two memory ports. The first port is nothing
* more than a chunk of video RAM, which is used as the I/O ring
* buffer. The second port has the actual juicy stuff (like the
* mixer and the playback engine control registers).
*/
chip->buffer_addr = pci_resource_start(pci, 0);
chip->cport_addr = pci_resource_start(pci, 1);
/* Init the memory port info. */
/* remap control port (#2) */
chip->res_cport = request_mem_region(chip->cport_addr, NM_PORT2_SIZE,
card->driver);
if (chip->res_cport == NULL) {
snd_printk(KERN_ERR "memory region 0x%lx (size 0x%x) busy\n",
chip->cport_addr, NM_PORT2_SIZE);
err = -EBUSY;
goto __error;
}
chip->cport = ioremap_nocache(chip->cport_addr, NM_PORT2_SIZE);
if (chip->cport == NULL) {
snd_printk(KERN_ERR "unable to map control port %lx\n", chip->cport_addr);
err = -ENOMEM;
goto __error;
}
if (!strcmp(card->driver, "NM256AV")) {
/* Ok, try to see if this is a non-AC97 version of the hardware. */
pval = snd_nm256_readw(chip, NM_MIXER_PRESENCE);
if ((pval & NM_PRESENCE_MASK) != NM_PRESENCE_VALUE) {
if (! force_ac97) {
printk(KERN_ERR "nm256: no ac97 is found!\n");
printk(KERN_ERR " force the driver to load by "
"passing in the module parameter\n");
printk(KERN_ERR " force_ac97=1\n");
printk(KERN_ERR " or try sb16, opl3sa2, or "
"cs423x drivers instead.\n");
err = -ENXIO;
goto __error;
}
}
chip->buffer_end = 2560 * 1024;
chip->interrupt = snd_nm256_interrupt;
chip->mixer_status_offset = NM_MIXER_STATUS_OFFSET;
chip->mixer_status_mask = NM_MIXER_READY_MASK;
} else {
/* Not sure if there is any relevant detect for the ZX or not. */
if (snd_nm256_readb(chip, 0xa0b) != 0)
chip->buffer_end = 6144 * 1024;
else
chip->buffer_end = 4096 * 1024;
chip->interrupt = snd_nm256_interrupt_zx;
chip->mixer_status_offset = NM2_MIXER_STATUS_OFFSET;
chip->mixer_status_mask = NM2_MIXER_READY_MASK;
}
chip->buffer_size = chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize +
chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize;
if (chip->use_cache)
chip->buffer_size += NM_TOTAL_COEFF_COUNT * 4;
else
chip->buffer_size += NM_MAX_PLAYBACK_COEF_SIZE + NM_MAX_RECORD_COEF_SIZE;
if (buffer_top >= chip->buffer_size && buffer_top < chip->buffer_end)
chip->buffer_end = buffer_top;
else {
/* get buffer end pointer from signature */
if ((err = snd_nm256_peek_for_sig(chip)) < 0)
goto __error;
}
chip->buffer_start = chip->buffer_end - chip->buffer_size;
chip->buffer_addr += chip->buffer_start;
printk(KERN_INFO "nm256: Mapping port 1 from 0x%x - 0x%x\n",
chip->buffer_start, chip->buffer_end);
chip->res_buffer = request_mem_region(chip->buffer_addr,
chip->buffer_size,
card->driver);
if (chip->res_buffer == NULL) {
snd_printk(KERN_ERR "nm256: buffer 0x%lx (size 0x%x) busy\n",
chip->buffer_addr, chip->buffer_size);
err = -EBUSY;
goto __error;
}
chip->buffer = ioremap_nocache(chip->buffer_addr, chip->buffer_size);
if (chip->buffer == NULL) {
err = -ENOMEM;
snd_printk(KERN_ERR "unable to map ring buffer at %lx\n", chip->buffer_addr);
goto __error;
}
/* set offsets */
addr = chip->buffer_start;
chip->streams[SNDRV_PCM_STREAM_PLAYBACK].buf = addr;
addr += chip->streams[SNDRV_PCM_STREAM_PLAYBACK].bufsize;
chip->streams[SNDRV_PCM_STREAM_CAPTURE].buf = addr;
addr += chip->streams[SNDRV_PCM_STREAM_CAPTURE].bufsize;
if (chip->use_cache) {
chip->all_coeff_buf = addr;
} else {
chip->coeff_buf[SNDRV_PCM_STREAM_PLAYBACK] = addr;
addr += NM_MAX_PLAYBACK_COEF_SIZE;
chip->coeff_buf[SNDRV_PCM_STREAM_CAPTURE] = addr;
}
/* Fixed setting. */
chip->mixer_base = NM_MIXER_OFFSET;
chip->coeffs_current = 0;
snd_nm256_init_chip(chip);
// pci_set_master(pci); /* needed? */
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0)
goto __error;
snd_card_set_dev(card, &pci->dev);
*chip_ret = chip;
return 0;
__error:
snd_nm256_free(chip);
return err;
}
enum { NM_BLACKLISTED, NM_RESET_WORKAROUND, NM_RESET_WORKAROUND_2 };
static struct snd_pci_quirk nm256_quirks[] __devinitdata = {
/* HP omnibook 4150 has cs4232 codec internally */
SND_PCI_QUIRK(0x103c, 0x0007, "HP omnibook 4150", NM_BLACKLISTED),
/* Reset workarounds to avoid lock-ups */
SND_PCI_QUIRK(0x104d, 0x8041, "Sony PCG-F305", NM_RESET_WORKAROUND),
SND_PCI_QUIRK(0x1028, 0x0080, "Dell Latitude LS", NM_RESET_WORKAROUND),
SND_PCI_QUIRK(0x1028, 0x0091, "Dell Latitude CSx", NM_RESET_WORKAROUND_2),
{ } /* terminator */
};
static int __devinit snd_nm256_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
struct snd_card *card;
struct nm256 *chip;
int err;
const struct snd_pci_quirk *q;
q = snd_pci_quirk_lookup(pci, nm256_quirks);
if (q) {
snd_printdd(KERN_INFO "nm256: Enabled quirk for %s.\n", q->name);
switch (q->value) {
case NM_BLACKLISTED:
printk(KERN_INFO "nm256: The device is blacklisted. "
"Loading stopped\n");
return -ENODEV;
case NM_RESET_WORKAROUND_2:
reset_workaround_2 = 1;
/* Fall-through */
case NM_RESET_WORKAROUND:
reset_workaround = 1;
break;
}
}
err = snd_card_create(index, id, THIS_MODULE, 0, &card);
if (err < 0)
return err;
switch (pci->device) {
case PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO:
strcpy(card->driver, "NM256AV");
break;
case PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO:
strcpy(card->driver, "NM256ZX");
break;
case PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO:
strcpy(card->driver, "NM256XL+");
break;
default:
snd_printk(KERN_ERR "invalid device id 0x%x\n", pci->device);
snd_card_free(card);
return -EINVAL;
}
if (vaio_hack)
buffer_top = 0x25a800; /* this avoids conflicts with XFree86 server */
if (playback_bufsize < 4)
playback_bufsize = 4;
if (playback_bufsize > 128)
playback_bufsize = 128;
if (capture_bufsize < 4)
capture_bufsize = 4;
if (capture_bufsize > 128)
capture_bufsize = 128;
if ((err = snd_nm256_create(card, pci, &chip)) < 0) {
snd_card_free(card);
return err;
}
card->private_data = chip;
if (reset_workaround) {
snd_printdd(KERN_INFO "nm256: reset_workaround activated\n");
chip->reset_workaround = 1;
}
if (reset_workaround_2) {
snd_printdd(KERN_INFO "nm256: reset_workaround_2 activated\n");
chip->reset_workaround_2 = 1;
}
if ((err = snd_nm256_pcm(chip, 0)) < 0 ||
(err = snd_nm256_mixer(chip)) < 0) {
snd_card_free(card);
return err;
}
sprintf(card->shortname, "NeoMagic %s", card->driver);
sprintf(card->longname, "%s at 0x%lx & 0x%lx, irq %d",
card->shortname,
chip->buffer_addr, chip->cport_addr, chip->irq);
if ((err = snd_card_register(card)) < 0) {
snd_card_free(card);
return err;
}
pci_set_drvdata(pci, card);
return 0;
}
static void __devexit snd_nm256_remove(struct pci_dev *pci)
{
snd_card_free(pci_get_drvdata(pci));
pci_set_drvdata(pci, NULL);
}
static struct pci_driver driver = {
.name = KBUILD_MODNAME,
.id_table = snd_nm256_ids,
.probe = snd_nm256_probe,
.remove = __devexit_p(snd_nm256_remove),
#ifdef CONFIG_PM
.suspend = nm256_suspend,
.resume = nm256_resume,
#endif
};
static int __init alsa_card_nm256_init(void)
{
return pci_register_driver(&driver);
}
static void __exit alsa_card_nm256_exit(void)
{
pci_unregister_driver(&driver);
}
module_init(alsa_card_nm256_init)
module_exit(alsa_card_nm256_exit)
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