1062 строки
26 KiB
C
1062 строки
26 KiB
C
/* Analog Devices 1889 audio driver
|
|
*
|
|
* This is a driver for the AD1889 PCI audio chipset found
|
|
* on the HP PA-RISC [BCJ]-xxx0 workstations.
|
|
*
|
|
* Copyright (C) 2004-2005, Kyle McMartin <kyle@parisc-linux.org>
|
|
* Copyright (C) 2005, Thibaut Varene <varenet@parisc-linux.org>
|
|
* Based on the OSS AD1889 driver by Randolph Chung <tausq@debian.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License, version 2, as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
* TODO:
|
|
* Do we need to take care of CCS register?
|
|
* Maybe we could use finer grained locking (separate locks for pb/cap)?
|
|
* Wishlist:
|
|
* Control Interface (mixer) support
|
|
* Better AC97 support (VSR...)?
|
|
* PM support
|
|
* MIDI support
|
|
* Game Port support
|
|
* SG DMA support (this will need *a lot* of work)
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/compiler.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/module.h>
|
|
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/initval.h>
|
|
#include <sound/ac97_codec.h>
|
|
|
|
#include <asm/io.h>
|
|
|
|
#include "ad1889.h"
|
|
#include "ac97/ac97_id.h"
|
|
|
|
#define AD1889_DRVVER "Version: 1.7"
|
|
|
|
MODULE_AUTHOR("Kyle McMartin <kyle@parisc-linux.org>, Thibaut Varene <t-bone@parisc-linux.org>");
|
|
MODULE_DESCRIPTION("Analog Devices AD1889 ALSA sound driver");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_SUPPORTED_DEVICE("{{Analog Devices,AD1889}}");
|
|
|
|
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
|
|
module_param_array(index, int, NULL, 0444);
|
|
MODULE_PARM_DESC(index, "Index value for the AD1889 soundcard.");
|
|
|
|
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
|
|
module_param_array(id, charp, NULL, 0444);
|
|
MODULE_PARM_DESC(id, "ID string for the AD1889 soundcard.");
|
|
|
|
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
|
|
module_param_array(enable, bool, NULL, 0444);
|
|
MODULE_PARM_DESC(enable, "Enable AD1889 soundcard.");
|
|
|
|
static char *ac97_quirk[SNDRV_CARDS];
|
|
module_param_array(ac97_quirk, charp, NULL, 0444);
|
|
MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
|
|
|
|
#define DEVNAME "ad1889"
|
|
#define PFX DEVNAME ": "
|
|
|
|
/* keep track of some hw registers */
|
|
struct ad1889_register_state {
|
|
u16 reg; /* reg setup */
|
|
u32 addr; /* dma base address */
|
|
unsigned long size; /* DMA buffer size */
|
|
};
|
|
|
|
struct snd_ad1889 {
|
|
struct snd_card *card;
|
|
struct pci_dev *pci;
|
|
|
|
int irq;
|
|
unsigned long bar;
|
|
void __iomem *iobase;
|
|
|
|
struct snd_ac97 *ac97;
|
|
struct snd_ac97_bus *ac97_bus;
|
|
struct snd_pcm *pcm;
|
|
struct snd_info_entry *proc;
|
|
|
|
struct snd_pcm_substream *psubs;
|
|
struct snd_pcm_substream *csubs;
|
|
|
|
/* playback register state */
|
|
struct ad1889_register_state wave;
|
|
struct ad1889_register_state ramc;
|
|
|
|
spinlock_t lock;
|
|
};
|
|
|
|
static inline u16
|
|
ad1889_readw(struct snd_ad1889 *chip, unsigned reg)
|
|
{
|
|
return readw(chip->iobase + reg);
|
|
}
|
|
|
|
static inline void
|
|
ad1889_writew(struct snd_ad1889 *chip, unsigned reg, u16 val)
|
|
{
|
|
writew(val, chip->iobase + reg);
|
|
}
|
|
|
|
static inline u32
|
|
ad1889_readl(struct snd_ad1889 *chip, unsigned reg)
|
|
{
|
|
return readl(chip->iobase + reg);
|
|
}
|
|
|
|
static inline void
|
|
ad1889_writel(struct snd_ad1889 *chip, unsigned reg, u32 val)
|
|
{
|
|
writel(val, chip->iobase + reg);
|
|
}
|
|
|
|
static inline void
|
|
ad1889_unmute(struct snd_ad1889 *chip)
|
|
{
|
|
u16 st;
|
|
st = ad1889_readw(chip, AD_DS_WADA) &
|
|
~(AD_DS_WADA_RWAM | AD_DS_WADA_LWAM);
|
|
ad1889_writew(chip, AD_DS_WADA, st);
|
|
ad1889_readw(chip, AD_DS_WADA);
|
|
}
|
|
|
|
static inline void
|
|
ad1889_mute(struct snd_ad1889 *chip)
|
|
{
|
|
u16 st;
|
|
st = ad1889_readw(chip, AD_DS_WADA) | AD_DS_WADA_RWAM | AD_DS_WADA_LWAM;
|
|
ad1889_writew(chip, AD_DS_WADA, st);
|
|
ad1889_readw(chip, AD_DS_WADA);
|
|
}
|
|
|
|
static inline void
|
|
ad1889_load_adc_buffer_address(struct snd_ad1889 *chip, u32 address)
|
|
{
|
|
ad1889_writel(chip, AD_DMA_ADCBA, address);
|
|
ad1889_writel(chip, AD_DMA_ADCCA, address);
|
|
}
|
|
|
|
static inline void
|
|
ad1889_load_adc_buffer_count(struct snd_ad1889 *chip, u32 count)
|
|
{
|
|
ad1889_writel(chip, AD_DMA_ADCBC, count);
|
|
ad1889_writel(chip, AD_DMA_ADCCC, count);
|
|
}
|
|
|
|
static inline void
|
|
ad1889_load_adc_interrupt_count(struct snd_ad1889 *chip, u32 count)
|
|
{
|
|
ad1889_writel(chip, AD_DMA_ADCIB, count);
|
|
ad1889_writel(chip, AD_DMA_ADCIC, count);
|
|
}
|
|
|
|
static inline void
|
|
ad1889_load_wave_buffer_address(struct snd_ad1889 *chip, u32 address)
|
|
{
|
|
ad1889_writel(chip, AD_DMA_WAVBA, address);
|
|
ad1889_writel(chip, AD_DMA_WAVCA, address);
|
|
}
|
|
|
|
static inline void
|
|
ad1889_load_wave_buffer_count(struct snd_ad1889 *chip, u32 count)
|
|
{
|
|
ad1889_writel(chip, AD_DMA_WAVBC, count);
|
|
ad1889_writel(chip, AD_DMA_WAVCC, count);
|
|
}
|
|
|
|
static inline void
|
|
ad1889_load_wave_interrupt_count(struct snd_ad1889 *chip, u32 count)
|
|
{
|
|
ad1889_writel(chip, AD_DMA_WAVIB, count);
|
|
ad1889_writel(chip, AD_DMA_WAVIC, count);
|
|
}
|
|
|
|
static void
|
|
ad1889_channel_reset(struct snd_ad1889 *chip, unsigned int channel)
|
|
{
|
|
u16 reg;
|
|
|
|
if (channel & AD_CHAN_WAV) {
|
|
/* Disable wave channel */
|
|
reg = ad1889_readw(chip, AD_DS_WSMC) & ~AD_DS_WSMC_WAEN;
|
|
ad1889_writew(chip, AD_DS_WSMC, reg);
|
|
chip->wave.reg = reg;
|
|
|
|
/* disable IRQs */
|
|
reg = ad1889_readw(chip, AD_DMA_WAV);
|
|
reg &= AD_DMA_IM_DIS;
|
|
reg &= ~AD_DMA_LOOP;
|
|
ad1889_writew(chip, AD_DMA_WAV, reg);
|
|
|
|
/* clear IRQ and address counters and pointers */
|
|
ad1889_load_wave_buffer_address(chip, 0x0);
|
|
ad1889_load_wave_buffer_count(chip, 0x0);
|
|
ad1889_load_wave_interrupt_count(chip, 0x0);
|
|
|
|
/* flush */
|
|
ad1889_readw(chip, AD_DMA_WAV);
|
|
}
|
|
|
|
if (channel & AD_CHAN_ADC) {
|
|
/* Disable ADC channel */
|
|
reg = ad1889_readw(chip, AD_DS_RAMC) & ~AD_DS_RAMC_ADEN;
|
|
ad1889_writew(chip, AD_DS_RAMC, reg);
|
|
chip->ramc.reg = reg;
|
|
|
|
reg = ad1889_readw(chip, AD_DMA_ADC);
|
|
reg &= AD_DMA_IM_DIS;
|
|
reg &= ~AD_DMA_LOOP;
|
|
ad1889_writew(chip, AD_DMA_ADC, reg);
|
|
|
|
ad1889_load_adc_buffer_address(chip, 0x0);
|
|
ad1889_load_adc_buffer_count(chip, 0x0);
|
|
ad1889_load_adc_interrupt_count(chip, 0x0);
|
|
|
|
/* flush */
|
|
ad1889_readw(chip, AD_DMA_ADC);
|
|
}
|
|
}
|
|
|
|
static u16
|
|
snd_ad1889_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
|
|
{
|
|
struct snd_ad1889 *chip = ac97->private_data;
|
|
return ad1889_readw(chip, AD_AC97_BASE + reg);
|
|
}
|
|
|
|
static void
|
|
snd_ad1889_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val)
|
|
{
|
|
struct snd_ad1889 *chip = ac97->private_data;
|
|
ad1889_writew(chip, AD_AC97_BASE + reg, val);
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_ac97_ready(struct snd_ad1889 *chip)
|
|
{
|
|
int retry = 400; /* average needs 352 msec */
|
|
|
|
while (!(ad1889_readw(chip, AD_AC97_ACIC) & AD_AC97_ACIC_ACRDY)
|
|
&& --retry)
|
|
mdelay(1);
|
|
if (!retry) {
|
|
dev_err(chip->card->dev, "[%s] Link is not ready.\n",
|
|
__func__);
|
|
return -EIO;
|
|
}
|
|
dev_dbg(chip->card->dev, "[%s] ready after %d ms\n", __func__, 400 - retry);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *hw_params)
|
|
{
|
|
return snd_pcm_lib_malloc_pages(substream,
|
|
params_buffer_bytes(hw_params));
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_hw_free(struct snd_pcm_substream *substream)
|
|
{
|
|
return snd_pcm_lib_free_pages(substream);
|
|
}
|
|
|
|
static struct snd_pcm_hardware snd_ad1889_playback_hw = {
|
|
.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
|
|
SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BLOCK_TRANSFER,
|
|
.formats = SNDRV_PCM_FMTBIT_S16_LE,
|
|
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
|
|
.rate_min = 8000, /* docs say 7000, but we're lazy */
|
|
.rate_max = 48000,
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.buffer_bytes_max = BUFFER_BYTES_MAX,
|
|
.period_bytes_min = PERIOD_BYTES_MIN,
|
|
.period_bytes_max = PERIOD_BYTES_MAX,
|
|
.periods_min = PERIODS_MIN,
|
|
.periods_max = PERIODS_MAX,
|
|
/*.fifo_size = 0,*/
|
|
};
|
|
|
|
static struct snd_pcm_hardware snd_ad1889_capture_hw = {
|
|
.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
|
|
SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BLOCK_TRANSFER,
|
|
.formats = SNDRV_PCM_FMTBIT_S16_LE,
|
|
.rates = SNDRV_PCM_RATE_48000,
|
|
.rate_min = 48000, /* docs say we could to VSR, but we're lazy */
|
|
.rate_max = 48000,
|
|
.channels_min = 1,
|
|
.channels_max = 2,
|
|
.buffer_bytes_max = BUFFER_BYTES_MAX,
|
|
.period_bytes_min = PERIOD_BYTES_MIN,
|
|
.period_bytes_max = PERIOD_BYTES_MAX,
|
|
.periods_min = PERIODS_MIN,
|
|
.periods_max = PERIODS_MAX,
|
|
/*.fifo_size = 0,*/
|
|
};
|
|
|
|
static int
|
|
snd_ad1889_playback_open(struct snd_pcm_substream *ss)
|
|
{
|
|
struct snd_ad1889 *chip = snd_pcm_substream_chip(ss);
|
|
struct snd_pcm_runtime *rt = ss->runtime;
|
|
|
|
chip->psubs = ss;
|
|
rt->hw = snd_ad1889_playback_hw;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_capture_open(struct snd_pcm_substream *ss)
|
|
{
|
|
struct snd_ad1889 *chip = snd_pcm_substream_chip(ss);
|
|
struct snd_pcm_runtime *rt = ss->runtime;
|
|
|
|
chip->csubs = ss;
|
|
rt->hw = snd_ad1889_capture_hw;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_playback_close(struct snd_pcm_substream *ss)
|
|
{
|
|
struct snd_ad1889 *chip = snd_pcm_substream_chip(ss);
|
|
chip->psubs = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_capture_close(struct snd_pcm_substream *ss)
|
|
{
|
|
struct snd_ad1889 *chip = snd_pcm_substream_chip(ss);
|
|
chip->csubs = NULL;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_playback_prepare(struct snd_pcm_substream *ss)
|
|
{
|
|
struct snd_ad1889 *chip = snd_pcm_substream_chip(ss);
|
|
struct snd_pcm_runtime *rt = ss->runtime;
|
|
unsigned int size = snd_pcm_lib_buffer_bytes(ss);
|
|
unsigned int count = snd_pcm_lib_period_bytes(ss);
|
|
u16 reg;
|
|
|
|
ad1889_channel_reset(chip, AD_CHAN_WAV);
|
|
|
|
reg = ad1889_readw(chip, AD_DS_WSMC);
|
|
|
|
/* Mask out 16-bit / Stereo */
|
|
reg &= ~(AD_DS_WSMC_WA16 | AD_DS_WSMC_WAST);
|
|
|
|
if (snd_pcm_format_width(rt->format) == 16)
|
|
reg |= AD_DS_WSMC_WA16;
|
|
|
|
if (rt->channels > 1)
|
|
reg |= AD_DS_WSMC_WAST;
|
|
|
|
/* let's make sure we don't clobber ourselves */
|
|
spin_lock_irq(&chip->lock);
|
|
|
|
chip->wave.size = size;
|
|
chip->wave.reg = reg;
|
|
chip->wave.addr = rt->dma_addr;
|
|
|
|
ad1889_writew(chip, AD_DS_WSMC, chip->wave.reg);
|
|
|
|
/* Set sample rates on the codec */
|
|
ad1889_writew(chip, AD_DS_WAS, rt->rate);
|
|
|
|
/* Set up DMA */
|
|
ad1889_load_wave_buffer_address(chip, chip->wave.addr);
|
|
ad1889_load_wave_buffer_count(chip, size);
|
|
ad1889_load_wave_interrupt_count(chip, count);
|
|
|
|
/* writes flush */
|
|
ad1889_readw(chip, AD_DS_WSMC);
|
|
|
|
spin_unlock_irq(&chip->lock);
|
|
|
|
dev_dbg(chip->card->dev,
|
|
"prepare playback: addr = 0x%x, count = %u, size = %u, reg = 0x%x, rate = %u\n",
|
|
chip->wave.addr, count, size, reg, rt->rate);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_capture_prepare(struct snd_pcm_substream *ss)
|
|
{
|
|
struct snd_ad1889 *chip = snd_pcm_substream_chip(ss);
|
|
struct snd_pcm_runtime *rt = ss->runtime;
|
|
unsigned int size = snd_pcm_lib_buffer_bytes(ss);
|
|
unsigned int count = snd_pcm_lib_period_bytes(ss);
|
|
u16 reg;
|
|
|
|
ad1889_channel_reset(chip, AD_CHAN_ADC);
|
|
|
|
reg = ad1889_readw(chip, AD_DS_RAMC);
|
|
|
|
/* Mask out 16-bit / Stereo */
|
|
reg &= ~(AD_DS_RAMC_AD16 | AD_DS_RAMC_ADST);
|
|
|
|
if (snd_pcm_format_width(rt->format) == 16)
|
|
reg |= AD_DS_RAMC_AD16;
|
|
|
|
if (rt->channels > 1)
|
|
reg |= AD_DS_RAMC_ADST;
|
|
|
|
/* let's make sure we don't clobber ourselves */
|
|
spin_lock_irq(&chip->lock);
|
|
|
|
chip->ramc.size = size;
|
|
chip->ramc.reg = reg;
|
|
chip->ramc.addr = rt->dma_addr;
|
|
|
|
ad1889_writew(chip, AD_DS_RAMC, chip->ramc.reg);
|
|
|
|
/* Set up DMA */
|
|
ad1889_load_adc_buffer_address(chip, chip->ramc.addr);
|
|
ad1889_load_adc_buffer_count(chip, size);
|
|
ad1889_load_adc_interrupt_count(chip, count);
|
|
|
|
/* writes flush */
|
|
ad1889_readw(chip, AD_DS_RAMC);
|
|
|
|
spin_unlock_irq(&chip->lock);
|
|
|
|
dev_dbg(chip->card->dev,
|
|
"prepare capture: addr = 0x%x, count = %u, size = %u, reg = 0x%x, rate = %u\n",
|
|
chip->ramc.addr, count, size, reg, rt->rate);
|
|
return 0;
|
|
}
|
|
|
|
/* this is called in atomic context with IRQ disabled.
|
|
Must be as fast as possible and not sleep.
|
|
DMA should be *triggered* by this call.
|
|
The WSMC "WAEN" bit triggers DMA Wave On/Off */
|
|
static int
|
|
snd_ad1889_playback_trigger(struct snd_pcm_substream *ss, int cmd)
|
|
{
|
|
u16 wsmc;
|
|
struct snd_ad1889 *chip = snd_pcm_substream_chip(ss);
|
|
|
|
wsmc = ad1889_readw(chip, AD_DS_WSMC);
|
|
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
/* enable DMA loop & interrupts */
|
|
ad1889_writew(chip, AD_DMA_WAV, AD_DMA_LOOP | AD_DMA_IM_CNT);
|
|
wsmc |= AD_DS_WSMC_WAEN;
|
|
/* 1 to clear CHSS bit */
|
|
ad1889_writel(chip, AD_DMA_CHSS, AD_DMA_CHSS_WAVS);
|
|
ad1889_unmute(chip);
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
ad1889_mute(chip);
|
|
wsmc &= ~AD_DS_WSMC_WAEN;
|
|
break;
|
|
default:
|
|
snd_BUG();
|
|
return -EINVAL;
|
|
}
|
|
|
|
chip->wave.reg = wsmc;
|
|
ad1889_writew(chip, AD_DS_WSMC, wsmc);
|
|
ad1889_readw(chip, AD_DS_WSMC); /* flush */
|
|
|
|
/* reset the chip when STOP - will disable IRQs */
|
|
if (cmd == SNDRV_PCM_TRIGGER_STOP)
|
|
ad1889_channel_reset(chip, AD_CHAN_WAV);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* this is called in atomic context with IRQ disabled.
|
|
Must be as fast as possible and not sleep.
|
|
DMA should be *triggered* by this call.
|
|
The RAMC "ADEN" bit triggers DMA ADC On/Off */
|
|
static int
|
|
snd_ad1889_capture_trigger(struct snd_pcm_substream *ss, int cmd)
|
|
{
|
|
u16 ramc;
|
|
struct snd_ad1889 *chip = snd_pcm_substream_chip(ss);
|
|
|
|
ramc = ad1889_readw(chip, AD_DS_RAMC);
|
|
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
/* enable DMA loop & interrupts */
|
|
ad1889_writew(chip, AD_DMA_ADC, AD_DMA_LOOP | AD_DMA_IM_CNT);
|
|
ramc |= AD_DS_RAMC_ADEN;
|
|
/* 1 to clear CHSS bit */
|
|
ad1889_writel(chip, AD_DMA_CHSS, AD_DMA_CHSS_ADCS);
|
|
break;
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
ramc &= ~AD_DS_RAMC_ADEN;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
chip->ramc.reg = ramc;
|
|
ad1889_writew(chip, AD_DS_RAMC, ramc);
|
|
ad1889_readw(chip, AD_DS_RAMC); /* flush */
|
|
|
|
/* reset the chip when STOP - will disable IRQs */
|
|
if (cmd == SNDRV_PCM_TRIGGER_STOP)
|
|
ad1889_channel_reset(chip, AD_CHAN_ADC);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Called in atomic context with IRQ disabled */
|
|
static snd_pcm_uframes_t
|
|
snd_ad1889_playback_pointer(struct snd_pcm_substream *ss)
|
|
{
|
|
size_t ptr = 0;
|
|
struct snd_ad1889 *chip = snd_pcm_substream_chip(ss);
|
|
|
|
if (unlikely(!(chip->wave.reg & AD_DS_WSMC_WAEN)))
|
|
return 0;
|
|
|
|
ptr = ad1889_readl(chip, AD_DMA_WAVCA);
|
|
ptr -= chip->wave.addr;
|
|
|
|
if (snd_BUG_ON(ptr >= chip->wave.size))
|
|
return 0;
|
|
|
|
return bytes_to_frames(ss->runtime, ptr);
|
|
}
|
|
|
|
/* Called in atomic context with IRQ disabled */
|
|
static snd_pcm_uframes_t
|
|
snd_ad1889_capture_pointer(struct snd_pcm_substream *ss)
|
|
{
|
|
size_t ptr = 0;
|
|
struct snd_ad1889 *chip = snd_pcm_substream_chip(ss);
|
|
|
|
if (unlikely(!(chip->ramc.reg & AD_DS_RAMC_ADEN)))
|
|
return 0;
|
|
|
|
ptr = ad1889_readl(chip, AD_DMA_ADCCA);
|
|
ptr -= chip->ramc.addr;
|
|
|
|
if (snd_BUG_ON(ptr >= chip->ramc.size))
|
|
return 0;
|
|
|
|
return bytes_to_frames(ss->runtime, ptr);
|
|
}
|
|
|
|
static struct snd_pcm_ops snd_ad1889_playback_ops = {
|
|
.open = snd_ad1889_playback_open,
|
|
.close = snd_ad1889_playback_close,
|
|
.ioctl = snd_pcm_lib_ioctl,
|
|
.hw_params = snd_ad1889_hw_params,
|
|
.hw_free = snd_ad1889_hw_free,
|
|
.prepare = snd_ad1889_playback_prepare,
|
|
.trigger = snd_ad1889_playback_trigger,
|
|
.pointer = snd_ad1889_playback_pointer,
|
|
};
|
|
|
|
static struct snd_pcm_ops snd_ad1889_capture_ops = {
|
|
.open = snd_ad1889_capture_open,
|
|
.close = snd_ad1889_capture_close,
|
|
.ioctl = snd_pcm_lib_ioctl,
|
|
.hw_params = snd_ad1889_hw_params,
|
|
.hw_free = snd_ad1889_hw_free,
|
|
.prepare = snd_ad1889_capture_prepare,
|
|
.trigger = snd_ad1889_capture_trigger,
|
|
.pointer = snd_ad1889_capture_pointer,
|
|
};
|
|
|
|
static irqreturn_t
|
|
snd_ad1889_interrupt(int irq, void *dev_id)
|
|
{
|
|
unsigned long st;
|
|
struct snd_ad1889 *chip = dev_id;
|
|
|
|
st = ad1889_readl(chip, AD_DMA_DISR);
|
|
|
|
/* clear ISR */
|
|
ad1889_writel(chip, AD_DMA_DISR, st);
|
|
|
|
st &= AD_INTR_MASK;
|
|
|
|
if (unlikely(!st))
|
|
return IRQ_NONE;
|
|
|
|
if (st & (AD_DMA_DISR_PMAI|AD_DMA_DISR_PTAI))
|
|
dev_dbg(chip->card->dev,
|
|
"Unexpected master or target abort interrupt!\n");
|
|
|
|
if ((st & AD_DMA_DISR_WAVI) && chip->psubs)
|
|
snd_pcm_period_elapsed(chip->psubs);
|
|
if ((st & AD_DMA_DISR_ADCI) && chip->csubs)
|
|
snd_pcm_period_elapsed(chip->csubs);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_pcm_init(struct snd_ad1889 *chip, int device, struct snd_pcm **rpcm)
|
|
{
|
|
int err;
|
|
struct snd_pcm *pcm;
|
|
|
|
if (rpcm)
|
|
*rpcm = NULL;
|
|
|
|
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_ad1889_playback_ops);
|
|
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
|
|
&snd_ad1889_capture_ops);
|
|
|
|
pcm->private_data = chip;
|
|
pcm->info_flags = 0;
|
|
strcpy(pcm->name, chip->card->shortname);
|
|
|
|
chip->pcm = pcm;
|
|
chip->psubs = NULL;
|
|
chip->csubs = NULL;
|
|
|
|
err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
|
|
snd_dma_pci_data(chip->pci),
|
|
BUFFER_BYTES_MAX / 2,
|
|
BUFFER_BYTES_MAX);
|
|
|
|
if (err < 0) {
|
|
dev_err(chip->card->dev, "buffer allocation error: %d\n", err);
|
|
return err;
|
|
}
|
|
|
|
if (rpcm)
|
|
*rpcm = pcm;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)
|
|
{
|
|
struct snd_ad1889 *chip = entry->private_data;
|
|
u16 reg;
|
|
int tmp;
|
|
|
|
reg = ad1889_readw(chip, AD_DS_WSMC);
|
|
snd_iprintf(buffer, "Wave output: %s\n",
|
|
(reg & AD_DS_WSMC_WAEN) ? "enabled" : "disabled");
|
|
snd_iprintf(buffer, "Wave Channels: %s\n",
|
|
(reg & AD_DS_WSMC_WAST) ? "stereo" : "mono");
|
|
snd_iprintf(buffer, "Wave Quality: %d-bit linear\n",
|
|
(reg & AD_DS_WSMC_WA16) ? 16 : 8);
|
|
|
|
/* WARQ is at offset 12 */
|
|
tmp = (reg & AD_DS_WSMC_WARQ) ?
|
|
((((reg & AD_DS_WSMC_WARQ) >> 12) & 0x01) ? 12 : 18) : 4;
|
|
tmp /= (reg & AD_DS_WSMC_WAST) ? 2 : 1;
|
|
|
|
snd_iprintf(buffer, "Wave FIFO: %d %s words\n\n", tmp,
|
|
(reg & AD_DS_WSMC_WAST) ? "stereo" : "mono");
|
|
|
|
|
|
snd_iprintf(buffer, "Synthesis output: %s\n",
|
|
reg & AD_DS_WSMC_SYEN ? "enabled" : "disabled");
|
|
|
|
/* SYRQ is at offset 4 */
|
|
tmp = (reg & AD_DS_WSMC_SYRQ) ?
|
|
((((reg & AD_DS_WSMC_SYRQ) >> 4) & 0x01) ? 12 : 18) : 4;
|
|
tmp /= (reg & AD_DS_WSMC_WAST) ? 2 : 1;
|
|
|
|
snd_iprintf(buffer, "Synthesis FIFO: %d %s words\n\n", tmp,
|
|
(reg & AD_DS_WSMC_WAST) ? "stereo" : "mono");
|
|
|
|
reg = ad1889_readw(chip, AD_DS_RAMC);
|
|
snd_iprintf(buffer, "ADC input: %s\n",
|
|
(reg & AD_DS_RAMC_ADEN) ? "enabled" : "disabled");
|
|
snd_iprintf(buffer, "ADC Channels: %s\n",
|
|
(reg & AD_DS_RAMC_ADST) ? "stereo" : "mono");
|
|
snd_iprintf(buffer, "ADC Quality: %d-bit linear\n",
|
|
(reg & AD_DS_RAMC_AD16) ? 16 : 8);
|
|
|
|
/* ACRQ is at offset 4 */
|
|
tmp = (reg & AD_DS_RAMC_ACRQ) ?
|
|
((((reg & AD_DS_RAMC_ACRQ) >> 4) & 0x01) ? 12 : 18) : 4;
|
|
tmp /= (reg & AD_DS_RAMC_ADST) ? 2 : 1;
|
|
|
|
snd_iprintf(buffer, "ADC FIFO: %d %s words\n\n", tmp,
|
|
(reg & AD_DS_RAMC_ADST) ? "stereo" : "mono");
|
|
|
|
snd_iprintf(buffer, "Resampler input: %s\n",
|
|
reg & AD_DS_RAMC_REEN ? "enabled" : "disabled");
|
|
|
|
/* RERQ is at offset 12 */
|
|
tmp = (reg & AD_DS_RAMC_RERQ) ?
|
|
((((reg & AD_DS_RAMC_RERQ) >> 12) & 0x01) ? 12 : 18) : 4;
|
|
tmp /= (reg & AD_DS_RAMC_ADST) ? 2 : 1;
|
|
|
|
snd_iprintf(buffer, "Resampler FIFO: %d %s words\n\n", tmp,
|
|
(reg & AD_DS_WSMC_WAST) ? "stereo" : "mono");
|
|
|
|
|
|
/* doc says LSB represents -1.5dB, but the max value (-94.5dB)
|
|
suggests that LSB is -3dB, which is more coherent with the logarithmic
|
|
nature of the dB scale */
|
|
reg = ad1889_readw(chip, AD_DS_WADA);
|
|
snd_iprintf(buffer, "Left: %s, -%d dB\n",
|
|
(reg & AD_DS_WADA_LWAM) ? "mute" : "unmute",
|
|
((reg & AD_DS_WADA_LWAA) >> 8) * 3);
|
|
reg = ad1889_readw(chip, AD_DS_WADA);
|
|
snd_iprintf(buffer, "Right: %s, -%d dB\n",
|
|
(reg & AD_DS_WADA_RWAM) ? "mute" : "unmute",
|
|
(reg & AD_DS_WADA_RWAA) * 3);
|
|
|
|
reg = ad1889_readw(chip, AD_DS_WAS);
|
|
snd_iprintf(buffer, "Wave samplerate: %u Hz\n", reg);
|
|
reg = ad1889_readw(chip, AD_DS_RES);
|
|
snd_iprintf(buffer, "Resampler samplerate: %u Hz\n", reg);
|
|
}
|
|
|
|
static void
|
|
snd_ad1889_proc_init(struct snd_ad1889 *chip)
|
|
{
|
|
struct snd_info_entry *entry;
|
|
|
|
if (!snd_card_proc_new(chip->card, chip->card->driver, &entry))
|
|
snd_info_set_text_ops(entry, chip, snd_ad1889_proc_read);
|
|
}
|
|
|
|
static struct ac97_quirk ac97_quirks[] = {
|
|
{
|
|
.subvendor = 0x11d4, /* AD */
|
|
.subdevice = 0x1889, /* AD1889 */
|
|
.codec_id = AC97_ID_AD1819,
|
|
.name = "AD1889",
|
|
.type = AC97_TUNE_HP_ONLY
|
|
},
|
|
{ } /* terminator */
|
|
};
|
|
|
|
static void
|
|
snd_ad1889_ac97_xinit(struct snd_ad1889 *chip)
|
|
{
|
|
u16 reg;
|
|
|
|
reg = ad1889_readw(chip, AD_AC97_ACIC);
|
|
reg |= AD_AC97_ACIC_ACRD; /* Reset Disable */
|
|
ad1889_writew(chip, AD_AC97_ACIC, reg);
|
|
ad1889_readw(chip, AD_AC97_ACIC); /* flush posted write */
|
|
udelay(10);
|
|
/* Interface Enable */
|
|
reg |= AD_AC97_ACIC_ACIE;
|
|
ad1889_writew(chip, AD_AC97_ACIC, reg);
|
|
|
|
snd_ad1889_ac97_ready(chip);
|
|
|
|
/* Audio Stream Output | Variable Sample Rate Mode */
|
|
reg = ad1889_readw(chip, AD_AC97_ACIC);
|
|
reg |= AD_AC97_ACIC_ASOE | AD_AC97_ACIC_VSRM;
|
|
ad1889_writew(chip, AD_AC97_ACIC, reg);
|
|
ad1889_readw(chip, AD_AC97_ACIC); /* flush posted write */
|
|
|
|
}
|
|
|
|
static void
|
|
snd_ad1889_ac97_bus_free(struct snd_ac97_bus *bus)
|
|
{
|
|
struct snd_ad1889 *chip = bus->private_data;
|
|
chip->ac97_bus = NULL;
|
|
}
|
|
|
|
static void
|
|
snd_ad1889_ac97_free(struct snd_ac97 *ac97)
|
|
{
|
|
struct snd_ad1889 *chip = ac97->private_data;
|
|
chip->ac97 = NULL;
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_ac97_init(struct snd_ad1889 *chip, const char *quirk_override)
|
|
{
|
|
int err;
|
|
struct snd_ac97_template ac97;
|
|
static struct snd_ac97_bus_ops ops = {
|
|
.write = snd_ad1889_ac97_write,
|
|
.read = snd_ad1889_ac97_read,
|
|
};
|
|
|
|
/* doing that here, it works. */
|
|
snd_ad1889_ac97_xinit(chip);
|
|
|
|
err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
chip->ac97_bus->private_free = snd_ad1889_ac97_bus_free;
|
|
|
|
memset(&ac97, 0, sizeof(ac97));
|
|
ac97.private_data = chip;
|
|
ac97.private_free = snd_ad1889_ac97_free;
|
|
ac97.pci = chip->pci;
|
|
|
|
err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_free(struct snd_ad1889 *chip)
|
|
{
|
|
if (chip->irq < 0)
|
|
goto skip_hw;
|
|
|
|
spin_lock_irq(&chip->lock);
|
|
|
|
ad1889_mute(chip);
|
|
|
|
/* Turn off interrupt on count and zero DMA registers */
|
|
ad1889_channel_reset(chip, AD_CHAN_WAV | AD_CHAN_ADC);
|
|
|
|
/* clear DISR. If we don't, we'd better jump off the Eiffel Tower */
|
|
ad1889_writel(chip, AD_DMA_DISR, AD_DMA_DISR_PTAI | AD_DMA_DISR_PMAI);
|
|
ad1889_readl(chip, AD_DMA_DISR); /* flush, dammit! */
|
|
|
|
spin_unlock_irq(&chip->lock);
|
|
|
|
if (chip->irq >= 0)
|
|
free_irq(chip->irq, chip);
|
|
|
|
skip_hw:
|
|
if (chip->iobase)
|
|
iounmap(chip->iobase);
|
|
|
|
pci_release_regions(chip->pci);
|
|
pci_disable_device(chip->pci);
|
|
|
|
kfree(chip);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_dev_free(struct snd_device *device)
|
|
{
|
|
struct snd_ad1889 *chip = device->device_data;
|
|
return snd_ad1889_free(chip);
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_init(struct snd_ad1889 *chip)
|
|
{
|
|
ad1889_writew(chip, AD_DS_CCS, AD_DS_CCS_CLKEN); /* turn on clock */
|
|
ad1889_readw(chip, AD_DS_CCS); /* flush posted write */
|
|
|
|
mdelay(10);
|
|
|
|
/* enable Master and Target abort interrupts */
|
|
ad1889_writel(chip, AD_DMA_DISR, AD_DMA_DISR_PMAE | AD_DMA_DISR_PTAE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_create(struct snd_card *card,
|
|
struct pci_dev *pci,
|
|
struct snd_ad1889 **rchip)
|
|
{
|
|
int err;
|
|
|
|
struct snd_ad1889 *chip;
|
|
static struct snd_device_ops ops = {
|
|
.dev_free = snd_ad1889_dev_free,
|
|
};
|
|
|
|
*rchip = NULL;
|
|
|
|
if ((err = pci_enable_device(pci)) < 0)
|
|
return err;
|
|
|
|
/* check PCI availability (32bit DMA) */
|
|
if (pci_set_dma_mask(pci, DMA_BIT_MASK(32)) < 0 ||
|
|
pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32)) < 0) {
|
|
dev_err(card->dev, "error setting 32-bit DMA mask.\n");
|
|
pci_disable_device(pci);
|
|
return -ENXIO;
|
|
}
|
|
|
|
/* allocate chip specific data with zero-filled memory */
|
|
if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
|
|
pci_disable_device(pci);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
chip->card = card;
|
|
card->private_data = chip;
|
|
chip->pci = pci;
|
|
chip->irq = -1;
|
|
|
|
/* (1) PCI resource allocation */
|
|
if ((err = pci_request_regions(pci, card->driver)) < 0)
|
|
goto free_and_ret;
|
|
|
|
chip->bar = pci_resource_start(pci, 0);
|
|
chip->iobase = pci_ioremap_bar(pci, 0);
|
|
if (chip->iobase == NULL) {
|
|
dev_err(card->dev, "unable to reserve region.\n");
|
|
err = -EBUSY;
|
|
goto free_and_ret;
|
|
}
|
|
|
|
pci_set_master(pci);
|
|
|
|
spin_lock_init(&chip->lock); /* only now can we call ad1889_free */
|
|
|
|
if (request_irq(pci->irq, snd_ad1889_interrupt,
|
|
IRQF_SHARED, KBUILD_MODNAME, chip)) {
|
|
dev_err(card->dev, "cannot obtain IRQ %d\n", pci->irq);
|
|
snd_ad1889_free(chip);
|
|
return -EBUSY;
|
|
}
|
|
|
|
chip->irq = pci->irq;
|
|
synchronize_irq(chip->irq);
|
|
|
|
/* (2) initialization of the chip hardware */
|
|
if ((err = snd_ad1889_init(chip)) < 0) {
|
|
snd_ad1889_free(chip);
|
|
return err;
|
|
}
|
|
|
|
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
|
|
snd_ad1889_free(chip);
|
|
return err;
|
|
}
|
|
|
|
*rchip = chip;
|
|
|
|
return 0;
|
|
|
|
free_and_ret:
|
|
kfree(chip);
|
|
pci_disable_device(pci);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
snd_ad1889_probe(struct pci_dev *pci,
|
|
const struct pci_device_id *pci_id)
|
|
{
|
|
int err;
|
|
static int devno;
|
|
struct snd_card *card;
|
|
struct snd_ad1889 *chip;
|
|
|
|
/* (1) */
|
|
if (devno >= SNDRV_CARDS)
|
|
return -ENODEV;
|
|
if (!enable[devno]) {
|
|
devno++;
|
|
return -ENOENT;
|
|
}
|
|
|
|
/* (2) */
|
|
err = snd_card_new(&pci->dev, index[devno], id[devno], THIS_MODULE,
|
|
0, &card);
|
|
/* XXX REVISIT: we can probably allocate chip in this call */
|
|
if (err < 0)
|
|
return err;
|
|
|
|
strcpy(card->driver, "AD1889");
|
|
strcpy(card->shortname, "Analog Devices AD1889");
|
|
|
|
/* (3) */
|
|
err = snd_ad1889_create(card, pci, &chip);
|
|
if (err < 0)
|
|
goto free_and_ret;
|
|
|
|
/* (4) */
|
|
sprintf(card->longname, "%s at 0x%lx irq %i",
|
|
card->shortname, chip->bar, chip->irq);
|
|
|
|
/* (5) */
|
|
/* register AC97 mixer */
|
|
err = snd_ad1889_ac97_init(chip, ac97_quirk[devno]);
|
|
if (err < 0)
|
|
goto free_and_ret;
|
|
|
|
err = snd_ad1889_pcm_init(chip, 0, NULL);
|
|
if (err < 0)
|
|
goto free_and_ret;
|
|
|
|
/* register proc interface */
|
|
snd_ad1889_proc_init(chip);
|
|
|
|
/* (6) */
|
|
err = snd_card_register(card);
|
|
if (err < 0)
|
|
goto free_and_ret;
|
|
|
|
/* (7) */
|
|
pci_set_drvdata(pci, card);
|
|
|
|
devno++;
|
|
return 0;
|
|
|
|
free_and_ret:
|
|
snd_card_free(card);
|
|
return err;
|
|
}
|
|
|
|
static void
|
|
snd_ad1889_remove(struct pci_dev *pci)
|
|
{
|
|
snd_card_free(pci_get_drvdata(pci));
|
|
}
|
|
|
|
static const struct pci_device_id snd_ad1889_ids[] = {
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_ANALOG_DEVICES, PCI_DEVICE_ID_AD1889JS) },
|
|
{ 0, },
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, snd_ad1889_ids);
|
|
|
|
static struct pci_driver ad1889_pci_driver = {
|
|
.name = KBUILD_MODNAME,
|
|
.id_table = snd_ad1889_ids,
|
|
.probe = snd_ad1889_probe,
|
|
.remove = snd_ad1889_remove,
|
|
};
|
|
|
|
module_pci_driver(ad1889_pci_driver);
|