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linux/sound/pci/es1938.c
Hermann Lauer 19e2e3c304 [ALSA] es1938 - improve capture hw pointer reads 
With the Solo1 (es1938) I got a lot of xrun's during capture on my machine.
Tracing that down it seems to be comming from reading ocassionaly bad hw
pointers from the chip.  This patch uses more checking to avoid that false
pointer reads.
Failed reads are giving back the last good value read instead of spinning in
a tight loop, which seems more appropriate to me in an interrupt. I think I
saw this trick used in another driver

Signed-off-by: Hermann Lauer <Hermann.Lauer@iwr.uni-heidelberg.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:23 +01:00

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56 KiB
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/*
* Driver for ESS Solo-1 (ES1938, ES1946, ES1969) soundcard
* Copyright (c) by Jaromir Koutek <miri@punknet.cz>,
* Jaroslav Kysela <perex@perex.cz>,
* Thomas Sailer <sailer@ife.ee.ethz.ch>,
* Abramo Bagnara <abramo@alsa-project.org>,
* Markus Gruber <gruber@eikon.tum.de>
*
* Rewritten from sonicvibes.c source.
*
* TODO:
* Rewrite better spinlocks
*
*
* 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:
- Capture data is written unaligned starting from dma_base + 1 so I need to
disable mmap and to add a copy callback.
- After several cycle of the following:
while : ; do arecord -d1 -f cd -t raw | aplay -f cd ; done
a "playback write error (DMA or IRQ trouble?)" may happen.
This is due to playback interrupts not generated.
I suspect a timing issue.
- Sometimes the interrupt handler is invoked wrongly during playback.
This generates some harmless "Unexpected hw_pointer: wrong interrupt
acknowledge".
I've seen that using small period sizes.
Reproducible with:
mpg123 test.mp3 &
hdparm -t -T /dev/hda
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/gameport.h>
#include <linux/moduleparam.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/opl3.h>
#include <sound/mpu401.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include <asm/io.h>
MODULE_AUTHOR("Jaromir Koutek <miri@punknet.cz>");
MODULE_DESCRIPTION("ESS Solo-1");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{ESS,ES1938},"
"{ESS,ES1946},"
"{ESS,ES1969},"
"{TerraTec,128i PCI}}");
#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
#define SUPPORT_JOYSTICK 1
#endif
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for ESS Solo-1 soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for ESS Solo-1 soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable ESS Solo-1 soundcard.");
#define SLIO_REG(chip, x) ((chip)->io_port + ESSIO_REG_##x)
#define SLDM_REG(chip, x) ((chip)->ddma_port + ESSDM_REG_##x)
#define SLSB_REG(chip, x) ((chip)->sb_port + ESSSB_REG_##x)
#define SL_PCI_LEGACYCONTROL 0x40
#define SL_PCI_CONFIG 0x50
#define SL_PCI_DDMACONTROL 0x60
#define ESSIO_REG_AUDIO2DMAADDR 0
#define ESSIO_REG_AUDIO2DMACOUNT 4
#define ESSIO_REG_AUDIO2MODE 6
#define ESSIO_REG_IRQCONTROL 7
#define ESSDM_REG_DMAADDR 0x00
#define ESSDM_REG_DMACOUNT 0x04
#define ESSDM_REG_DMACOMMAND 0x08
#define ESSDM_REG_DMASTATUS 0x08
#define ESSDM_REG_DMAMODE 0x0b
#define ESSDM_REG_DMACLEAR 0x0d
#define ESSDM_REG_DMAMASK 0x0f
#define ESSSB_REG_FMLOWADDR 0x00
#define ESSSB_REG_FMHIGHADDR 0x02
#define ESSSB_REG_MIXERADDR 0x04
#define ESSSB_REG_MIXERDATA 0x05
#define ESSSB_IREG_AUDIO1 0x14
#define ESSSB_IREG_MICMIX 0x1a
#define ESSSB_IREG_RECSRC 0x1c
#define ESSSB_IREG_MASTER 0x32
#define ESSSB_IREG_FM 0x36
#define ESSSB_IREG_AUXACD 0x38
#define ESSSB_IREG_AUXB 0x3a
#define ESSSB_IREG_PCSPEAKER 0x3c
#define ESSSB_IREG_LINE 0x3e
#define ESSSB_IREG_SPATCONTROL 0x50
#define ESSSB_IREG_SPATLEVEL 0x52
#define ESSSB_IREG_MASTER_LEFT 0x60
#define ESSSB_IREG_MASTER_RIGHT 0x62
#define ESSSB_IREG_MPU401CONTROL 0x64
#define ESSSB_IREG_MICMIXRECORD 0x68
#define ESSSB_IREG_AUDIO2RECORD 0x69
#define ESSSB_IREG_AUXACDRECORD 0x6a
#define ESSSB_IREG_FMRECORD 0x6b
#define ESSSB_IREG_AUXBRECORD 0x6c
#define ESSSB_IREG_MONO 0x6d
#define ESSSB_IREG_LINERECORD 0x6e
#define ESSSB_IREG_MONORECORD 0x6f
#define ESSSB_IREG_AUDIO2SAMPLE 0x70
#define ESSSB_IREG_AUDIO2MODE 0x71
#define ESSSB_IREG_AUDIO2FILTER 0x72
#define ESSSB_IREG_AUDIO2TCOUNTL 0x74
#define ESSSB_IREG_AUDIO2TCOUNTH 0x76
#define ESSSB_IREG_AUDIO2CONTROL1 0x78
#define ESSSB_IREG_AUDIO2CONTROL2 0x7a
#define ESSSB_IREG_AUDIO2 0x7c
#define ESSSB_REG_RESET 0x06
#define ESSSB_REG_READDATA 0x0a
#define ESSSB_REG_WRITEDATA 0x0c
#define ESSSB_REG_READSTATUS 0x0c
#define ESSSB_REG_STATUS 0x0e
#define ESS_CMD_EXTSAMPLERATE 0xa1
#define ESS_CMD_FILTERDIV 0xa2
#define ESS_CMD_DMACNTRELOADL 0xa4
#define ESS_CMD_DMACNTRELOADH 0xa5
#define ESS_CMD_ANALOGCONTROL 0xa8
#define ESS_CMD_IRQCONTROL 0xb1
#define ESS_CMD_DRQCONTROL 0xb2
#define ESS_CMD_RECLEVEL 0xb4
#define ESS_CMD_SETFORMAT 0xb6
#define ESS_CMD_SETFORMAT2 0xb7
#define ESS_CMD_DMACONTROL 0xb8
#define ESS_CMD_DMATYPE 0xb9
#define ESS_CMD_OFFSETLEFT 0xba
#define ESS_CMD_OFFSETRIGHT 0xbb
#define ESS_CMD_READREG 0xc0
#define ESS_CMD_ENABLEEXT 0xc6
#define ESS_CMD_PAUSEDMA 0xd0
#define ESS_CMD_ENABLEAUDIO1 0xd1
#define ESS_CMD_STOPAUDIO1 0xd3
#define ESS_CMD_AUDIO1STATUS 0xd8
#define ESS_CMD_CONTDMA 0xd4
#define ESS_CMD_TESTIRQ 0xf2
#define ESS_RECSRC_MIC 0
#define ESS_RECSRC_AUXACD 2
#define ESS_RECSRC_AUXB 5
#define ESS_RECSRC_LINE 6
#define ESS_RECSRC_NONE 7
#define DAC1 0x01
#define ADC1 0x02
#define DAC2 0x04
/*
*/
#define SAVED_REG_SIZE 32 /* max. number of registers to save */
struct es1938 {
int irq;
unsigned long io_port;
unsigned long sb_port;
unsigned long vc_port;
unsigned long mpu_port;
unsigned long game_port;
unsigned long ddma_port;
unsigned char irqmask;
unsigned char revision;
struct snd_kcontrol *hw_volume;
struct snd_kcontrol *hw_switch;
struct snd_kcontrol *master_volume;
struct snd_kcontrol *master_switch;
struct pci_dev *pci;
struct snd_card *card;
struct snd_pcm *pcm;
struct snd_pcm_substream *capture_substream;
struct snd_pcm_substream *playback1_substream;
struct snd_pcm_substream *playback2_substream;
struct snd_rawmidi *rmidi;
unsigned int dma1_size;
unsigned int dma2_size;
unsigned int dma1_start;
unsigned int dma2_start;
unsigned int dma1_shift;
unsigned int dma2_shift;
unsigned int last_capture_dmaaddr;
unsigned int active;
spinlock_t reg_lock;
spinlock_t mixer_lock;
struct snd_info_entry *proc_entry;
#ifdef SUPPORT_JOYSTICK
struct gameport *gameport;
#endif
#ifdef CONFIG_PM
unsigned char saved_regs[SAVED_REG_SIZE];
#endif
};
static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id);
static struct pci_device_id snd_es1938_ids[] = {
{ 0x125d, 0x1969, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* Solo-1 */
{ 0, }
};
MODULE_DEVICE_TABLE(pci, snd_es1938_ids);
#define RESET_LOOP_TIMEOUT 0x10000
#define WRITE_LOOP_TIMEOUT 0x10000
#define GET_LOOP_TIMEOUT 0x01000
#undef REG_DEBUG
/* -----------------------------------------------------------------
* Write to a mixer register
* -----------------------------------------------------------------*/
static void snd_es1938_mixer_write(struct es1938 *chip, unsigned char reg, unsigned char val)
{
unsigned long flags;
spin_lock_irqsave(&chip->mixer_lock, flags);
outb(reg, SLSB_REG(chip, MIXERADDR));
outb(val, SLSB_REG(chip, MIXERDATA));
spin_unlock_irqrestore(&chip->mixer_lock, flags);
#ifdef REG_DEBUG
snd_printk(KERN_DEBUG "Mixer reg %02x set to %02x\n", reg, val);
#endif
}
/* -----------------------------------------------------------------
* Read from a mixer register
* -----------------------------------------------------------------*/
static int snd_es1938_mixer_read(struct es1938 *chip, unsigned char reg)
{
int data;
unsigned long flags;
spin_lock_irqsave(&chip->mixer_lock, flags);
outb(reg, SLSB_REG(chip, MIXERADDR));
data = inb(SLSB_REG(chip, MIXERDATA));
spin_unlock_irqrestore(&chip->mixer_lock, flags);
#ifdef REG_DEBUG
snd_printk(KERN_DEBUG "Mixer reg %02x now is %02x\n", reg, data);
#endif
return data;
}
/* -----------------------------------------------------------------
* Write to some bits of a mixer register (return old value)
* -----------------------------------------------------------------*/
static int snd_es1938_mixer_bits(struct es1938 *chip, unsigned char reg,
unsigned char mask, unsigned char val)
{
unsigned long flags;
unsigned char old, new, oval;
spin_lock_irqsave(&chip->mixer_lock, flags);
outb(reg, SLSB_REG(chip, MIXERADDR));
old = inb(SLSB_REG(chip, MIXERDATA));
oval = old & mask;
if (val != oval) {
new = (old & ~mask) | (val & mask);
outb(new, SLSB_REG(chip, MIXERDATA));
#ifdef REG_DEBUG
snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x\n",
reg, old, new);
#endif
}
spin_unlock_irqrestore(&chip->mixer_lock, flags);
return oval;
}
/* -----------------------------------------------------------------
* Write command to Controller Registers
* -----------------------------------------------------------------*/
static void snd_es1938_write_cmd(struct es1938 *chip, unsigned char cmd)
{
int i;
unsigned char v;
for (i = 0; i < WRITE_LOOP_TIMEOUT; i++) {
if (!(v = inb(SLSB_REG(chip, READSTATUS)) & 0x80)) {
outb(cmd, SLSB_REG(chip, WRITEDATA));
return;
}
}
printk(KERN_ERR "snd_es1938_write_cmd timeout (0x02%x/0x02%x)\n", cmd, v);
}
/* -----------------------------------------------------------------
* Read the Read Data Buffer
* -----------------------------------------------------------------*/
static int snd_es1938_get_byte(struct es1938 *chip)
{
int i;
unsigned char v;
for (i = GET_LOOP_TIMEOUT; i; i--)
if ((v = inb(SLSB_REG(chip, STATUS))) & 0x80)
return inb(SLSB_REG(chip, READDATA));
snd_printk(KERN_ERR "get_byte timeout: status 0x02%x\n", v);
return -ENODEV;
}
/* -----------------------------------------------------------------
* Write value cmd register
* -----------------------------------------------------------------*/
static void snd_es1938_write(struct es1938 *chip, unsigned char reg, unsigned char val)
{
unsigned long flags;
spin_lock_irqsave(&chip->reg_lock, flags);
snd_es1938_write_cmd(chip, reg);
snd_es1938_write_cmd(chip, val);
spin_unlock_irqrestore(&chip->reg_lock, flags);
#ifdef REG_DEBUG
snd_printk(KERN_DEBUG "Reg %02x set to %02x\n", reg, val);
#endif
}
/* -----------------------------------------------------------------
* Read data from cmd register and return it
* -----------------------------------------------------------------*/
static unsigned char snd_es1938_read(struct es1938 *chip, unsigned char reg)
{
unsigned char val;
unsigned long flags;
spin_lock_irqsave(&chip->reg_lock, flags);
snd_es1938_write_cmd(chip, ESS_CMD_READREG);
snd_es1938_write_cmd(chip, reg);
val = snd_es1938_get_byte(chip);
spin_unlock_irqrestore(&chip->reg_lock, flags);
#ifdef REG_DEBUG
snd_printk(KERN_DEBUG "Reg %02x now is %02x\n", reg, val);
#endif
return val;
}
/* -----------------------------------------------------------------
* Write data to cmd register and return old value
* -----------------------------------------------------------------*/
static int snd_es1938_bits(struct es1938 *chip, unsigned char reg, unsigned char mask,
unsigned char val)
{
unsigned long flags;
unsigned char old, new, oval;
spin_lock_irqsave(&chip->reg_lock, flags);
snd_es1938_write_cmd(chip, ESS_CMD_READREG);
snd_es1938_write_cmd(chip, reg);
old = snd_es1938_get_byte(chip);
oval = old & mask;
if (val != oval) {
snd_es1938_write_cmd(chip, reg);
new = (old & ~mask) | (val & mask);
snd_es1938_write_cmd(chip, new);
#ifdef REG_DEBUG
snd_printk(KERN_DEBUG "Reg %02x was %02x, set to %02x\n",
reg, old, new);
#endif
}
spin_unlock_irqrestore(&chip->reg_lock, flags);
return oval;
}
/* --------------------------------------------------------------------
* Reset the chip
* --------------------------------------------------------------------*/
static void snd_es1938_reset(struct es1938 *chip)
{
int i;
outb(3, SLSB_REG(chip, RESET));
inb(SLSB_REG(chip, RESET));
outb(0, SLSB_REG(chip, RESET));
for (i = 0; i < RESET_LOOP_TIMEOUT; i++) {
if (inb(SLSB_REG(chip, STATUS)) & 0x80) {
if (inb(SLSB_REG(chip, READDATA)) == 0xaa)
goto __next;
}
}
snd_printk(KERN_ERR "ESS Solo-1 reset failed\n");
__next:
snd_es1938_write_cmd(chip, ESS_CMD_ENABLEEXT);
/* Demand transfer DMA: 4 bytes per DMA request */
snd_es1938_write(chip, ESS_CMD_DMATYPE, 2);
/* Change behaviour of register A1
4x oversampling
2nd channel DAC asynchronous */
snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2MODE, 0x32);
/* enable/select DMA channel and IRQ channel */
snd_es1938_bits(chip, ESS_CMD_IRQCONTROL, 0xf0, 0x50);
snd_es1938_bits(chip, ESS_CMD_DRQCONTROL, 0xf0, 0x50);
snd_es1938_write_cmd(chip, ESS_CMD_ENABLEAUDIO1);
/* Set spatializer parameters to recommended values */
snd_es1938_mixer_write(chip, 0x54, 0x8f);
snd_es1938_mixer_write(chip, 0x56, 0x95);
snd_es1938_mixer_write(chip, 0x58, 0x94);
snd_es1938_mixer_write(chip, 0x5a, 0x80);
}
/* --------------------------------------------------------------------
* Reset the FIFOs
* --------------------------------------------------------------------*/
static void snd_es1938_reset_fifo(struct es1938 *chip)
{
outb(2, SLSB_REG(chip, RESET));
outb(0, SLSB_REG(chip, RESET));
}
static struct snd_ratnum clocks[2] = {
{
.num = 793800,
.den_min = 1,
.den_max = 128,
.den_step = 1,
},
{
.num = 768000,
.den_min = 1,
.den_max = 128,
.den_step = 1,
}
};
static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
.nrats = 2,
.rats = clocks,
};
static void snd_es1938_rate_set(struct es1938 *chip,
struct snd_pcm_substream *substream,
int mode)
{
unsigned int bits, div0;
struct snd_pcm_runtime *runtime = substream->runtime;
if (runtime->rate_num == clocks[0].num)
bits = 128 - runtime->rate_den;
else
bits = 256 - runtime->rate_den;
/* set filter register */
div0 = 256 - 7160000*20/(8*82*runtime->rate);
if (mode == DAC2) {
snd_es1938_mixer_write(chip, 0x70, bits);
snd_es1938_mixer_write(chip, 0x72, div0);
} else {
snd_es1938_write(chip, 0xA1, bits);
snd_es1938_write(chip, 0xA2, div0);
}
}
/* --------------------------------------------------------------------
* Configure Solo1 builtin DMA Controller
* --------------------------------------------------------------------*/
static void snd_es1938_playback1_setdma(struct es1938 *chip)
{
outb(0x00, SLIO_REG(chip, AUDIO2MODE));
outl(chip->dma2_start, SLIO_REG(chip, AUDIO2DMAADDR));
outw(0, SLIO_REG(chip, AUDIO2DMACOUNT));
outw(chip->dma2_size, SLIO_REG(chip, AUDIO2DMACOUNT));
}
static void snd_es1938_playback2_setdma(struct es1938 *chip)
{
/* Enable DMA controller */
outb(0xc4, SLDM_REG(chip, DMACOMMAND));
/* 1. Master reset */
outb(0, SLDM_REG(chip, DMACLEAR));
/* 2. Mask DMA */
outb(1, SLDM_REG(chip, DMAMASK));
outb(0x18, SLDM_REG(chip, DMAMODE));
outl(chip->dma1_start, SLDM_REG(chip, DMAADDR));
outw(chip->dma1_size - 1, SLDM_REG(chip, DMACOUNT));
/* 3. Unmask DMA */
outb(0, SLDM_REG(chip, DMAMASK));
}
static void snd_es1938_capture_setdma(struct es1938 *chip)
{
/* Enable DMA controller */
outb(0xc4, SLDM_REG(chip, DMACOMMAND));
/* 1. Master reset */
outb(0, SLDM_REG(chip, DMACLEAR));
/* 2. Mask DMA */
outb(1, SLDM_REG(chip, DMAMASK));
outb(0x14, SLDM_REG(chip, DMAMODE));
outl(chip->dma1_start, SLDM_REG(chip, DMAADDR));
chip->last_capture_dmaaddr = chip->dma1_start;
outw(chip->dma1_size - 1, SLDM_REG(chip, DMACOUNT));
/* 3. Unmask DMA */
outb(0, SLDM_REG(chip, DMAMASK));
}
/* ----------------------------------------------------------------------
*
* *** PCM part ***
*/
static int snd_es1938_capture_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct es1938 *chip = snd_pcm_substream_chip(substream);
int val;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
val = 0x0f;
chip->active |= ADC1;
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
val = 0x00;
chip->active &= ~ADC1;
break;
default:
return -EINVAL;
}
snd_es1938_write(chip, ESS_CMD_DMACONTROL, val);
return 0;
}
static int snd_es1938_playback1_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct es1938 *chip = snd_pcm_substream_chip(substream);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
/* According to the documentation this should be:
0x13 but that value may randomly swap stereo channels */
snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0x92);
udelay(10);
snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0x93);
/* This two stage init gives the FIFO -> DAC connection time to
* settle before first data from DMA flows in. This should ensure
* no swapping of stereo channels. Report a bug if otherwise :-) */
outb(0x0a, SLIO_REG(chip, AUDIO2MODE));
chip->active |= DAC2;
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
outb(0, SLIO_REG(chip, AUDIO2MODE));
snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0);
chip->active &= ~DAC2;
break;
default:
return -EINVAL;
}
return 0;
}
static int snd_es1938_playback2_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct es1938 *chip = snd_pcm_substream_chip(substream);
int val;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
val = 5;
chip->active |= DAC1;
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
val = 0;
chip->active &= ~DAC1;
break;
default:
return -EINVAL;
}
snd_es1938_write(chip, ESS_CMD_DMACONTROL, val);
return 0;
}
static int snd_es1938_playback_trigger(struct snd_pcm_substream *substream,
int cmd)
{
switch (substream->number) {
case 0:
return snd_es1938_playback1_trigger(substream, cmd);
case 1:
return snd_es1938_playback2_trigger(substream, cmd);
}
snd_BUG();
return -EINVAL;
}
/* --------------------------------------------------------------------
* First channel for Extended Mode Audio 1 ADC Operation
* --------------------------------------------------------------------*/
static int snd_es1938_capture_prepare(struct snd_pcm_substream *substream)
{
struct es1938 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
int u, is8, mono;
unsigned int size = snd_pcm_lib_buffer_bytes(substream);
unsigned int count = snd_pcm_lib_period_bytes(substream);
chip->dma1_size = size;
chip->dma1_start = runtime->dma_addr;
mono = (runtime->channels > 1) ? 0 : 1;
is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
u = snd_pcm_format_unsigned(runtime->format);
chip->dma1_shift = 2 - mono - is8;
snd_es1938_reset_fifo(chip);
/* program type */
snd_es1938_bits(chip, ESS_CMD_ANALOGCONTROL, 0x03, (mono ? 2 : 1));
/* set clock and counters */
snd_es1938_rate_set(chip, substream, ADC1);
count = 0x10000 - count;
snd_es1938_write(chip, ESS_CMD_DMACNTRELOADL, count & 0xff);
snd_es1938_write(chip, ESS_CMD_DMACNTRELOADH, count >> 8);
/* initialize and configure ADC */
snd_es1938_write(chip, ESS_CMD_SETFORMAT2, u ? 0x51 : 0x71);
snd_es1938_write(chip, ESS_CMD_SETFORMAT2, 0x90 |
(u ? 0x00 : 0x20) |
(is8 ? 0x00 : 0x04) |
(mono ? 0x40 : 0x08));
// snd_es1938_reset_fifo(chip);
/* 11. configure system interrupt controller and DMA controller */
snd_es1938_capture_setdma(chip);
return 0;
}
/* ------------------------------------------------------------------------------
* Second Audio channel DAC Operation
* ------------------------------------------------------------------------------*/
static int snd_es1938_playback1_prepare(struct snd_pcm_substream *substream)
{
struct es1938 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
int u, is8, mono;
unsigned int size = snd_pcm_lib_buffer_bytes(substream);
unsigned int count = snd_pcm_lib_period_bytes(substream);
chip->dma2_size = size;
chip->dma2_start = runtime->dma_addr;
mono = (runtime->channels > 1) ? 0 : 1;
is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
u = snd_pcm_format_unsigned(runtime->format);
chip->dma2_shift = 2 - mono - is8;
snd_es1938_reset_fifo(chip);
/* set clock and counters */
snd_es1938_rate_set(chip, substream, DAC2);
count >>= 1;
count = 0x10000 - count;
snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2TCOUNTL, count & 0xff);
snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2TCOUNTH, count >> 8);
/* initialize and configure Audio 2 DAC */
snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x40 | (u ? 0 : 4) |
(mono ? 0 : 2) | (is8 ? 0 : 1));
/* program DMA */
snd_es1938_playback1_setdma(chip);
return 0;
}
static int snd_es1938_playback2_prepare(struct snd_pcm_substream *substream)
{
struct es1938 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
int u, is8, mono;
unsigned int size = snd_pcm_lib_buffer_bytes(substream);
unsigned int count = snd_pcm_lib_period_bytes(substream);
chip->dma1_size = size;
chip->dma1_start = runtime->dma_addr;
mono = (runtime->channels > 1) ? 0 : 1;
is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
u = snd_pcm_format_unsigned(runtime->format);
chip->dma1_shift = 2 - mono - is8;
count = 0x10000 - count;
/* reset */
snd_es1938_reset_fifo(chip);
snd_es1938_bits(chip, ESS_CMD_ANALOGCONTROL, 0x03, (mono ? 2 : 1));
/* set clock and counters */
snd_es1938_rate_set(chip, substream, DAC1);
snd_es1938_write(chip, ESS_CMD_DMACNTRELOADL, count & 0xff);
snd_es1938_write(chip, ESS_CMD_DMACNTRELOADH, count >> 8);
/* initialized and configure DAC */
snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x80 : 0x00);
snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x51 : 0x71);
snd_es1938_write(chip, ESS_CMD_SETFORMAT2,
0x90 | (mono ? 0x40 : 0x08) |
(is8 ? 0x00 : 0x04) | (u ? 0x00 : 0x20));
/* program DMA */
snd_es1938_playback2_setdma(chip);
return 0;
}
static int snd_es1938_playback_prepare(struct snd_pcm_substream *substream)
{
switch (substream->number) {
case 0:
return snd_es1938_playback1_prepare(substream);
case 1:
return snd_es1938_playback2_prepare(substream);
}
snd_BUG();
return -EINVAL;
}
/* during the incrementing of dma counters the DMA register reads sometimes
returns garbage. To ensure a valid hw pointer, the following checks which
should be very unlikely to fail are used:
- is the current DMA address in the valid DMA range ?
- is the sum of DMA address and DMA counter pointing to the last DMA byte ?
One can argue this could differ by one byte depending on which register is
updated first, so the implementation below allows for that.
*/
static snd_pcm_uframes_t snd_es1938_capture_pointer(struct snd_pcm_substream *substream)
{
struct es1938 *chip = snd_pcm_substream_chip(substream);
size_t ptr;
#if 0
size_t old, new;
/* This stuff is *needed*, don't ask why - AB */
old = inw(SLDM_REG(chip, DMACOUNT));
while ((new = inw(SLDM_REG(chip, DMACOUNT))) != old)
old = new;
ptr = chip->dma1_size - 1 - new;
#else
size_t count;
unsigned int diff;
ptr = inl(SLDM_REG(chip, DMAADDR));
count = inw(SLDM_REG(chip, DMACOUNT));
diff = chip->dma1_start + chip->dma1_size - ptr - count;
if (diff > 3 || ptr < chip->dma1_start
|| ptr >= chip->dma1_start+chip->dma1_size)
ptr = chip->last_capture_dmaaddr; /* bad, use last saved */
else
chip->last_capture_dmaaddr = ptr; /* good, remember it */
ptr -= chip->dma1_start;
#endif
return ptr >> chip->dma1_shift;
}
static snd_pcm_uframes_t snd_es1938_playback1_pointer(struct snd_pcm_substream *substream)
{
struct es1938 *chip = snd_pcm_substream_chip(substream);
size_t ptr;
#if 1
ptr = chip->dma2_size - inw(SLIO_REG(chip, AUDIO2DMACOUNT));
#else
ptr = inl(SLIO_REG(chip, AUDIO2DMAADDR)) - chip->dma2_start;
#endif
return ptr >> chip->dma2_shift;
}
static snd_pcm_uframes_t snd_es1938_playback2_pointer(struct snd_pcm_substream *substream)
{
struct es1938 *chip = snd_pcm_substream_chip(substream);
size_t ptr;
size_t old, new;
#if 1
/* This stuff is *needed*, don't ask why - AB */
old = inw(SLDM_REG(chip, DMACOUNT));
while ((new = inw(SLDM_REG(chip, DMACOUNT))) != old)
old = new;
ptr = chip->dma1_size - 1 - new;
#else
ptr = inl(SLDM_REG(chip, DMAADDR)) - chip->dma1_start;
#endif
return ptr >> chip->dma1_shift;
}
static snd_pcm_uframes_t snd_es1938_playback_pointer(struct snd_pcm_substream *substream)
{
switch (substream->number) {
case 0:
return snd_es1938_playback1_pointer(substream);
case 1:
return snd_es1938_playback2_pointer(substream);
}
snd_BUG();
return -EINVAL;
}
static int snd_es1938_capture_copy(struct snd_pcm_substream *substream,
int channel,
snd_pcm_uframes_t pos,
void __user *dst,
snd_pcm_uframes_t count)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct es1938 *chip = snd_pcm_substream_chip(substream);
pos <<= chip->dma1_shift;
count <<= chip->dma1_shift;
snd_assert(pos + count <= chip->dma1_size, return -EINVAL);
if (pos + count < chip->dma1_size) {
if (copy_to_user(dst, runtime->dma_area + pos + 1, count))
return -EFAULT;
} else {
if (copy_to_user(dst, runtime->dma_area + pos + 1, count - 1))
return -EFAULT;
if (put_user(runtime->dma_area[0], ((unsigned char __user *)dst) + count - 1))
return -EFAULT;
}
return 0;
}
/*
* buffer management
*/
static int snd_es1938_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
int err;
if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
return err;
return 0;
}
static int snd_es1938_pcm_hw_free(struct snd_pcm_substream *substream)
{
return snd_pcm_lib_free_pages(substream);
}
/* ----------------------------------------------------------------------
* Audio1 Capture (ADC)
* ----------------------------------------------------------------------*/
static struct snd_pcm_hardware snd_es1938_capture =
{
.info = (SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER),
.formats = (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
.rate_min = 6000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = 0x8000, /* DMA controller screws on higher values */
.period_bytes_min = 64,
.period_bytes_max = 0x8000,
.periods_min = 1,
.periods_max = 1024,
.fifo_size = 256,
};
/* -----------------------------------------------------------------------
* Audio2 Playback (DAC)
* -----------------------------------------------------------------------*/
static struct snd_pcm_hardware snd_es1938_playback =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID),
.formats = (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
.rate_min = 6000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = 0x8000, /* DMA controller screws on higher values */
.period_bytes_min = 64,
.period_bytes_max = 0x8000,
.periods_min = 1,
.periods_max = 1024,
.fifo_size = 256,
};
static int snd_es1938_capture_open(struct snd_pcm_substream *substream)
{
struct es1938 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
if (chip->playback2_substream)
return -EAGAIN;
chip->capture_substream = substream;
runtime->hw = snd_es1938_capture;
snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&hw_constraints_clocks);
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, 0xff00);
return 0;
}
static int snd_es1938_playback_open(struct snd_pcm_substream *substream)
{
struct es1938 *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
switch (substream->number) {
case 0:
chip->playback1_substream = substream;
break;
case 1:
if (chip->capture_substream)
return -EAGAIN;
chip->playback2_substream = substream;
break;
default:
snd_BUG();
return -EINVAL;
}
runtime->hw = snd_es1938_playback;
snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&hw_constraints_clocks);
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, 0xff00);
return 0;
}
static int snd_es1938_capture_close(struct snd_pcm_substream *substream)
{
struct es1938 *chip = snd_pcm_substream_chip(substream);
chip->capture_substream = NULL;
return 0;
}
static int snd_es1938_playback_close(struct snd_pcm_substream *substream)
{
struct es1938 *chip = snd_pcm_substream_chip(substream);
switch (substream->number) {
case 0:
chip->playback1_substream = NULL;
break;
case 1:
chip->playback2_substream = NULL;
break;
default:
snd_BUG();
return -EINVAL;
}
return 0;
}
static struct snd_pcm_ops snd_es1938_playback_ops = {
.open = snd_es1938_playback_open,
.close = snd_es1938_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_es1938_pcm_hw_params,
.hw_free = snd_es1938_pcm_hw_free,
.prepare = snd_es1938_playback_prepare,
.trigger = snd_es1938_playback_trigger,
.pointer = snd_es1938_playback_pointer,
};
static struct snd_pcm_ops snd_es1938_capture_ops = {
.open = snd_es1938_capture_open,
.close = snd_es1938_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_es1938_pcm_hw_params,
.hw_free = snd_es1938_pcm_hw_free,
.prepare = snd_es1938_capture_prepare,
.trigger = snd_es1938_capture_trigger,
.pointer = snd_es1938_capture_pointer,
.copy = snd_es1938_capture_copy,
};
static int __devinit snd_es1938_new_pcm(struct es1938 *chip, int device)
{
struct snd_pcm *pcm;
int err;
if ((err = snd_pcm_new(chip->card, "es-1938-1946", device, 2, 1, &pcm)) < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1938_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1938_capture_ops);
pcm->private_data = chip;
pcm->info_flags = 0;
strcpy(pcm->name, "ESS Solo-1");
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
chip->pcm = pcm;
return 0;
}
/* -------------------------------------------------------------------
*
* *** Mixer part ***
*/
static int snd_es1938_info_mux(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
static char *texts[8] = {
"Mic", "Mic Master", "CD", "AOUT",
"Mic1", "Mix", "Line", "Master"
};
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = 8;
if (uinfo->value.enumerated.item > 7)
uinfo->value.enumerated.item = 7;
strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
return 0;
}
static int snd_es1938_get_mux(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct es1938 *chip = snd_kcontrol_chip(kcontrol);
ucontrol->value.enumerated.item[0] = snd_es1938_mixer_read(chip, 0x1c) & 0x07;
return 0;
}
static int snd_es1938_put_mux(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct es1938 *chip = snd_kcontrol_chip(kcontrol);
unsigned char val = ucontrol->value.enumerated.item[0];
if (val > 7)
return -EINVAL;
return snd_es1938_mixer_bits(chip, 0x1c, 0x07, val) != val;
}
#define snd_es1938_info_spatializer_enable snd_ctl_boolean_mono_info
static int snd_es1938_get_spatializer_enable(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct es1938 *chip = snd_kcontrol_chip(kcontrol);
unsigned char val = snd_es1938_mixer_read(chip, 0x50);
ucontrol->value.integer.value[0] = !!(val & 8);
return 0;
}
static int snd_es1938_put_spatializer_enable(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct es1938 *chip = snd_kcontrol_chip(kcontrol);
unsigned char oval, nval;
int change;
nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
oval = snd_es1938_mixer_read(chip, 0x50) & 0x0c;
change = nval != oval;
if (change) {
snd_es1938_mixer_write(chip, 0x50, nval & ~0x04);
snd_es1938_mixer_write(chip, 0x50, nval);
}
return change;
}
static int snd_es1938_info_hw_volume(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 63;
return 0;
}
static int snd_es1938_get_hw_volume(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct es1938 *chip = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = snd_es1938_mixer_read(chip, 0x61) & 0x3f;
ucontrol->value.integer.value[1] = snd_es1938_mixer_read(chip, 0x63) & 0x3f;
return 0;
}
#define snd_es1938_info_hw_switch snd_ctl_boolean_stereo_info
static int snd_es1938_get_hw_switch(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct es1938 *chip = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = !(snd_es1938_mixer_read(chip, 0x61) & 0x40);
ucontrol->value.integer.value[1] = !(snd_es1938_mixer_read(chip, 0x63) & 0x40);
return 0;
}
static void snd_es1938_hwv_free(struct snd_kcontrol *kcontrol)
{
struct es1938 *chip = snd_kcontrol_chip(kcontrol);
chip->master_volume = NULL;
chip->master_switch = NULL;
chip->hw_volume = NULL;
chip->hw_switch = NULL;
}
static int snd_es1938_reg_bits(struct es1938 *chip, unsigned char reg,
unsigned char mask, unsigned char val)
{
if (reg < 0xa0)
return snd_es1938_mixer_bits(chip, reg, mask, val);
else
return snd_es1938_bits(chip, reg, mask, val);
}
static int snd_es1938_reg_read(struct es1938 *chip, unsigned char reg)
{
if (reg < 0xa0)
return snd_es1938_mixer_read(chip, reg);
else
return snd_es1938_read(chip, reg);
}
#define ES1938_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,\
.name = xname, .index = xindex, \
.info = snd_es1938_info_single, \
.get = snd_es1938_get_single, .put = snd_es1938_put_single, \
.private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
.tlv = { .p = xtlv } }
#define ES1938_SINGLE(xname, xindex, reg, shift, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
.info = snd_es1938_info_single, \
.get = snd_es1938_get_single, .put = snd_es1938_put_single, \
.private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
static int snd_es1938_info_single(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
int mask = (kcontrol->private_value >> 16) & 0xff;
uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = mask;
return 0;
}
static int snd_es1938_get_single(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct es1938 *chip = snd_kcontrol_chip(kcontrol);
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
int val;
val = snd_es1938_reg_read(chip, reg);
ucontrol->value.integer.value[0] = (val >> shift) & mask;
if (invert)
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
return 0;
}
static int snd_es1938_put_single(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct es1938 *chip = snd_kcontrol_chip(kcontrol);
int reg = kcontrol->private_value & 0xff;
int shift = (kcontrol->private_value >> 8) & 0xff;
int mask = (kcontrol->private_value >> 16) & 0xff;
int invert = (kcontrol->private_value >> 24) & 0xff;
unsigned char val;
val = (ucontrol->value.integer.value[0] & mask);
if (invert)
val = mask - val;
mask <<= shift;
val <<= shift;
return snd_es1938_reg_bits(chip, reg, mask, val) != val;
}
#define ES1938_DOUBLE_TLV(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert, xtlv) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,\
.name = xname, .index = xindex, \
.info = snd_es1938_info_double, \
.get = snd_es1938_get_double, .put = snd_es1938_put_double, \
.private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22), \
.tlv = { .p = xtlv } }
#define ES1938_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
.info = snd_es1938_info_double, \
.get = snd_es1938_get_double, .put = snd_es1938_put_double, \
.private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
static int snd_es1938_info_double(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
int mask = (kcontrol->private_value >> 24) & 0xff;
uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = mask;
return 0;
}
static int snd_es1938_get_double(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct es1938 *chip = snd_kcontrol_chip(kcontrol);
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int shift_left = (kcontrol->private_value >> 16) & 0x07;
int shift_right = (kcontrol->private_value >> 19) & 0x07;
int mask = (kcontrol->private_value >> 24) & 0xff;
int invert = (kcontrol->private_value >> 22) & 1;
unsigned char left, right;
left = snd_es1938_reg_read(chip, left_reg);
if (left_reg != right_reg)
right = snd_es1938_reg_read(chip, right_reg);
else
right = left;
ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
if (invert) {
ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
}
return 0;
}
static int snd_es1938_put_double(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct es1938 *chip = snd_kcontrol_chip(kcontrol);
int left_reg = kcontrol->private_value & 0xff;
int right_reg = (kcontrol->private_value >> 8) & 0xff;
int shift_left = (kcontrol->private_value >> 16) & 0x07;
int shift_right = (kcontrol->private_value >> 19) & 0x07;
int mask = (kcontrol->private_value >> 24) & 0xff;
int invert = (kcontrol->private_value >> 22) & 1;
int change;
unsigned char val1, val2, mask1, mask2;
val1 = ucontrol->value.integer.value[0] & mask;
val2 = ucontrol->value.integer.value[1] & mask;
if (invert) {
val1 = mask - val1;
val2 = mask - val2;
}
val1 <<= shift_left;
val2 <<= shift_right;
mask1 = mask << shift_left;
mask2 = mask << shift_right;
if (left_reg != right_reg) {
change = 0;
if (snd_es1938_reg_bits(chip, left_reg, mask1, val1) != val1)
change = 1;
if (snd_es1938_reg_bits(chip, right_reg, mask2, val2) != val2)
change = 1;
} else {
change = (snd_es1938_reg_bits(chip, left_reg, mask1 | mask2,
val1 | val2) != (val1 | val2));
}
return change;
}
static unsigned int db_scale_master[] = {
TLV_DB_RANGE_HEAD(2),
0, 54, TLV_DB_SCALE_ITEM(-3600, 50, 1),
54, 63, TLV_DB_SCALE_ITEM(-900, 100, 0),
};
static unsigned int db_scale_audio1[] = {
TLV_DB_RANGE_HEAD(2),
0, 8, TLV_DB_SCALE_ITEM(-3300, 300, 1),
8, 15, TLV_DB_SCALE_ITEM(-900, 150, 0),
};
static unsigned int db_scale_audio2[] = {
TLV_DB_RANGE_HEAD(2),
0, 8, TLV_DB_SCALE_ITEM(-3450, 300, 1),
8, 15, TLV_DB_SCALE_ITEM(-1050, 150, 0),
};
static unsigned int db_scale_mic[] = {
TLV_DB_RANGE_HEAD(2),
0, 8, TLV_DB_SCALE_ITEM(-2400, 300, 1),
8, 15, TLV_DB_SCALE_ITEM(0, 150, 0),
};
static unsigned int db_scale_line[] = {
TLV_DB_RANGE_HEAD(2),
0, 8, TLV_DB_SCALE_ITEM(-3150, 300, 1),
8, 15, TLV_DB_SCALE_ITEM(-750, 150, 0),
};
static const DECLARE_TLV_DB_SCALE(db_scale_capture, 0, 150, 0);
static struct snd_kcontrol_new snd_es1938_controls[] = {
ES1938_DOUBLE_TLV("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0,
db_scale_master),
ES1938_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Hardware Master Playback Volume",
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.info = snd_es1938_info_hw_volume,
.get = snd_es1938_get_hw_volume,
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = (SNDRV_CTL_ELEM_ACCESS_READ |
SNDRV_CTL_ELEM_ACCESS_TLV_READ),
.name = "Hardware Master Playback Switch",
.info = snd_es1938_info_hw_switch,
.get = snd_es1938_get_hw_switch,
.tlv = { .p = db_scale_master },
},
ES1938_SINGLE("Hardware Volume Split", 0, 0x64, 7, 1, 0),
ES1938_DOUBLE_TLV("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0,
db_scale_line),
ES1938_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
ES1938_DOUBLE_TLV("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0,
db_scale_mic),
ES1938_DOUBLE_TLV("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0,
db_scale_line),
ES1938_DOUBLE_TLV("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0,
db_scale_mic),
ES1938_DOUBLE_TLV("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0,
db_scale_line),
ES1938_DOUBLE_TLV("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0,
db_scale_capture),
ES1938_SINGLE("PC Speaker Volume", 0, 0x3c, 0, 7, 0),
ES1938_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
ES1938_SINGLE("Capture Switch", 0, 0x1c, 4, 1, 1),
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Capture Source",
.info = snd_es1938_info_mux,
.get = snd_es1938_get_mux,
.put = snd_es1938_put_mux,
},
ES1938_DOUBLE_TLV("Mono Input Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0,
db_scale_line),
ES1938_DOUBLE_TLV("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0,
db_scale_audio2),
ES1938_DOUBLE_TLV("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0,
db_scale_mic),
ES1938_DOUBLE_TLV("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0,
db_scale_line),
ES1938_DOUBLE_TLV("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0,
db_scale_mic),
ES1938_DOUBLE_TLV("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0,
db_scale_line),
ES1938_DOUBLE_TLV("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0,
db_scale_line),
ES1938_DOUBLE_TLV("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0,
db_scale_line),
ES1938_DOUBLE_TLV("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0,
db_scale_audio2),
ES1938_DOUBLE_TLV("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0,
db_scale_audio1),
ES1938_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "3D Control - Switch",
.info = snd_es1938_info_spatializer_enable,
.get = snd_es1938_get_spatializer_enable,
.put = snd_es1938_put_spatializer_enable,
},
ES1938_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0)
};
/* ---------------------------------------------------------------------------- */
/* ---------------------------------------------------------------------------- */
/*
* initialize the chip - used by resume callback, too
*/
static void snd_es1938_chip_init(struct es1938 *chip)
{
/* reset chip */
snd_es1938_reset(chip);
/* configure native mode */
/* enable bus master */
pci_set_master(chip->pci);
/* disable legacy audio */
pci_write_config_word(chip->pci, SL_PCI_LEGACYCONTROL, 0x805f);
/* set DDMA base */
pci_write_config_word(chip->pci, SL_PCI_DDMACONTROL, chip->ddma_port | 1);
/* set DMA/IRQ policy */
pci_write_config_dword(chip->pci, SL_PCI_CONFIG, 0);
/* enable Audio 1, Audio 2, MPU401 IRQ and HW volume IRQ*/
outb(0xf0, SLIO_REG(chip, IRQCONTROL));
/* reset DMA */
outb(0, SLDM_REG(chip, DMACLEAR));
}
#ifdef CONFIG_PM
/*
* PM support
*/
static unsigned char saved_regs[SAVED_REG_SIZE+1] = {
0x14, 0x1a, 0x1c, 0x3a, 0x3c, 0x3e, 0x36, 0x38,
0x50, 0x52, 0x60, 0x61, 0x62, 0x63, 0x64, 0x68,
0x69, 0x6a, 0x6b, 0x6d, 0x6e, 0x6f, 0x7c, 0x7d,
0xa8, 0xb4,
};
static int es1938_suspend(struct pci_dev *pci, pm_message_t state)
{
struct snd_card *card = pci_get_drvdata(pci);
struct es1938 *chip = card->private_data;
unsigned char *s, *d;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
snd_pcm_suspend_all(chip->pcm);
/* save mixer-related registers */
for (s = saved_regs, d = chip->saved_regs; *s; s++, d++)
*d = snd_es1938_reg_read(chip, *s);
outb(0x00, SLIO_REG(chip, IRQCONTROL)); /* disable irqs */
if (chip->irq >= 0) {
synchronize_irq(chip->irq);
free_irq(chip->irq, chip);
chip->irq = -1;
}
pci_disable_device(pci);
pci_save_state(pci);
pci_set_power_state(pci, pci_choose_state(pci, state));
return 0;
}
static int es1938_resume(struct pci_dev *pci)
{
struct snd_card *card = pci_get_drvdata(pci);
struct es1938 *chip = card->private_data;
unsigned char *s, *d;
pci_set_power_state(pci, PCI_D0);
pci_restore_state(pci);
if (pci_enable_device(pci) < 0) {
printk(KERN_ERR "es1938: pci_enable_device failed, "
"disabling device\n");
snd_card_disconnect(card);
return -EIO;
}
if (request_irq(pci->irq, snd_es1938_interrupt,
IRQF_SHARED, "ES1938", chip)) {
printk(KERN_ERR "es1938: unable to grab IRQ %d, "
"disabling device\n", pci->irq);
snd_card_disconnect(card);
return -EIO;
}
chip->irq = pci->irq;
snd_es1938_chip_init(chip);
/* restore mixer-related registers */
for (s = saved_regs, d = chip->saved_regs; *s; s++, d++) {
if (*s < 0xa0)
snd_es1938_mixer_write(chip, *s, *d);
else
snd_es1938_write(chip, *s, *d);
}
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif /* CONFIG_PM */
#ifdef SUPPORT_JOYSTICK
static int __devinit snd_es1938_create_gameport(struct es1938 *chip)
{
struct gameport *gp;
chip->gameport = gp = gameport_allocate_port();
if (!gp) {
printk(KERN_ERR "es1938: cannot allocate memory for gameport\n");
return -ENOMEM;
}
gameport_set_name(gp, "ES1938");
gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
gameport_set_dev_parent(gp, &chip->pci->dev);
gp->io = chip->game_port;
gameport_register_port(gp);
return 0;
}
static void snd_es1938_free_gameport(struct es1938 *chip)
{
if (chip->gameport) {
gameport_unregister_port(chip->gameport);
chip->gameport = NULL;
}
}
#else
static inline int snd_es1938_create_gameport(struct es1938 *chip) { return -ENOSYS; }
static inline void snd_es1938_free_gameport(struct es1938 *chip) { }
#endif /* SUPPORT_JOYSTICK */
static int snd_es1938_free(struct es1938 *chip)
{
/* disable irqs */
outb(0x00, SLIO_REG(chip, IRQCONTROL));
if (chip->rmidi)
snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0);
snd_es1938_free_gameport(chip);
if (chip->irq >= 0) {
synchronize_irq(chip->irq);
free_irq(chip->irq, chip);
}
pci_release_regions(chip->pci);
pci_disable_device(chip->pci);
kfree(chip);
return 0;
}
static int snd_es1938_dev_free(struct snd_device *device)
{
struct es1938 *chip = device->device_data;
return snd_es1938_free(chip);
}
static int __devinit snd_es1938_create(struct snd_card *card,
struct pci_dev * pci,
struct es1938 ** rchip)
{
struct es1938 *chip;
int err;
static struct snd_device_ops ops = {
.dev_free = snd_es1938_dev_free,
};
*rchip = NULL;
/* enable PCI device */
if ((err = pci_enable_device(pci)) < 0)
return err;
/* 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");
pci_disable_device(pci);
return -ENXIO;
}
chip = kzalloc(sizeof(*chip), GFP_KERNEL);
if (chip == NULL) {
pci_disable_device(pci);
return -ENOMEM;
}
spin_lock_init(&chip->reg_lock);
spin_lock_init(&chip->mixer_lock);
chip->card = card;
chip->pci = pci;
chip->irq = -1;
if ((err = pci_request_regions(pci, "ESS Solo-1")) < 0) {
kfree(chip);
pci_disable_device(pci);
return err;
}
chip->io_port = pci_resource_start(pci, 0);
chip->sb_port = pci_resource_start(pci, 1);
chip->vc_port = pci_resource_start(pci, 2);
chip->mpu_port = pci_resource_start(pci, 3);
chip->game_port = pci_resource_start(pci, 4);
if (request_irq(pci->irq, snd_es1938_interrupt, IRQF_SHARED,
"ES1938", chip)) {
snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
snd_es1938_free(chip);
return -EBUSY;
}
chip->irq = pci->irq;
#ifdef ES1938_DDEBUG
snd_printk(KERN_DEBUG "create: io: 0x%lx, sb: 0x%lx, vc: 0x%lx, mpu: 0x%lx, game: 0x%lx\n",
chip->io_port, chip->sb_port, chip->vc_port, chip->mpu_port, chip->game_port);
#endif
chip->ddma_port = chip->vc_port + 0x00; /* fix from Thomas Sailer */
snd_es1938_chip_init(chip);
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
snd_es1938_free(chip);
return err;
}
snd_card_set_dev(card, &pci->dev);
*rchip = chip;
return 0;
}
/* --------------------------------------------------------------------
* Interrupt handler
* -------------------------------------------------------------------- */
static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id)
{
struct es1938 *chip = dev_id;
unsigned char status, audiostatus;
int handled = 0;
status = inb(SLIO_REG(chip, IRQCONTROL));
#if 0
printk("Es1938debug - interrupt status: =0x%x\n", status);
#endif
/* AUDIO 1 */
if (status & 0x10) {
#if 0
printk("Es1938debug - AUDIO channel 1 interrupt\n");
printk("Es1938debug - AUDIO channel 1 DMAC DMA count: %u\n",
inw(SLDM_REG(chip, DMACOUNT)));
printk("Es1938debug - AUDIO channel 1 DMAC DMA base: %u\n",
inl(SLDM_REG(chip, DMAADDR)));
printk("Es1938debug - AUDIO channel 1 DMAC DMA status: 0x%x\n",
inl(SLDM_REG(chip, DMASTATUS)));
#endif
/* clear irq */
handled = 1;
audiostatus = inb(SLSB_REG(chip, STATUS));
if (chip->active & ADC1)
snd_pcm_period_elapsed(chip->capture_substream);
else if (chip->active & DAC1)
snd_pcm_period_elapsed(chip->playback2_substream);
}
/* AUDIO 2 */
if (status & 0x20) {
#if 0
printk("Es1938debug - AUDIO channel 2 interrupt\n");
printk("Es1938debug - AUDIO channel 2 DMAC DMA count: %u\n",
inw(SLIO_REG(chip, AUDIO2DMACOUNT)));
printk("Es1938debug - AUDIO channel 2 DMAC DMA base: %u\n",
inl(SLIO_REG(chip, AUDIO2DMAADDR)));
#endif
/* clear irq */
handled = 1;
snd_es1938_mixer_bits(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x80, 0);
if (chip->active & DAC2)
snd_pcm_period_elapsed(chip->playback1_substream);
}
/* Hardware volume */
if (status & 0x40) {
int split = snd_es1938_mixer_read(chip, 0x64) & 0x80;
handled = 1;
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_switch->id);
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_volume->id);
if (!split) {
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
&chip->master_switch->id);
snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
&chip->master_volume->id);
}
/* ack interrupt */
snd_es1938_mixer_write(chip, 0x66, 0x00);
}
/* MPU401 */
if (status & 0x80) {
// the following line is evil! It switches off MIDI interrupt handling after the first interrupt received.
// replacing the last 0 by 0x40 works for ESS-Solo1, but just doing nothing works as well!
// andreas@flying-snail.de
// snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0); /* ack? */
if (chip->rmidi) {
handled = 1;
snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
}
}
return IRQ_RETVAL(handled);
}
#define ES1938_DMA_SIZE 64
static int __devinit snd_es1938_mixer(struct es1938 *chip)
{
struct snd_card *card;
unsigned int idx;
int err;
card = chip->card;
strcpy(card->mixername, "ESS Solo-1");
for (idx = 0; idx < ARRAY_SIZE(snd_es1938_controls); idx++) {
struct snd_kcontrol *kctl;
kctl = snd_ctl_new1(&snd_es1938_controls[idx], chip);
switch (idx) {
case 0:
chip->master_volume = kctl;
kctl->private_free = snd_es1938_hwv_free;
break;
case 1:
chip->master_switch = kctl;
kctl->private_free = snd_es1938_hwv_free;
break;
case 2:
chip->hw_volume = kctl;
kctl->private_free = snd_es1938_hwv_free;
break;
case 3:
chip->hw_switch = kctl;
kctl->private_free = snd_es1938_hwv_free;
break;
}
if ((err = snd_ctl_add(card, kctl)) < 0)
return err;
}
return 0;
}
static int __devinit snd_es1938_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
static int dev;
struct snd_card *card;
struct es1938 *chip;
struct snd_opl3 *opl3;
int idx, err;
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;
for (idx = 0; idx < 5; idx++) {
if (pci_resource_start(pci, idx) == 0 ||
!(pci_resource_flags(pci, idx) & IORESOURCE_IO)) {
snd_card_free(card);
return -ENODEV;
}
}
if ((err = snd_es1938_create(card, pci, &chip)) < 0) {
snd_card_free(card);
return err;
}
card->private_data = chip;
strcpy(card->driver, "ES1938");
strcpy(card->shortname, "ESS ES1938 (Solo-1)");
sprintf(card->longname, "%s rev %i, irq %i",
card->shortname,
chip->revision,
chip->irq);
if ((err = snd_es1938_new_pcm(chip, 0)) < 0) {
snd_card_free(card);
return err;
}
if ((err = snd_es1938_mixer(chip)) < 0) {
snd_card_free(card);
return err;
}
if (snd_opl3_create(card,
SLSB_REG(chip, FMLOWADDR),
SLSB_REG(chip, FMHIGHADDR),
OPL3_HW_OPL3, 1, &opl3) < 0) {
printk(KERN_ERR "es1938: OPL3 not detected at 0x%lx\n",
SLSB_REG(chip, FMLOWADDR));
} else {
if ((err = snd_opl3_timer_new(opl3, 0, 1)) < 0) {
snd_card_free(card);
return err;
}
if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
snd_card_free(card);
return err;
}
}
if (snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
chip->mpu_port, MPU401_INFO_INTEGRATED,
chip->irq, 0, &chip->rmidi) < 0) {
printk(KERN_ERR "es1938: unable to initialize MPU-401\n");
} else {
// this line is vital for MIDI interrupt handling on ess-solo1
// andreas@flying-snail.de
snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0x40);
}
snd_es1938_create_gameport(chip);
if ((err = snd_card_register(card)) < 0) {
snd_card_free(card);
return err;
}
pci_set_drvdata(pci, card);
dev++;
return 0;
}
static void __devexit snd_es1938_remove(struct pci_dev *pci)
{
snd_card_free(pci_get_drvdata(pci));
pci_set_drvdata(pci, NULL);
}
static struct pci_driver driver = {
.name = "ESS ES1938 (Solo-1)",
.id_table = snd_es1938_ids,
.probe = snd_es1938_probe,
.remove = __devexit_p(snd_es1938_remove),
#ifdef CONFIG_PM
.suspend = es1938_suspend,
.resume = es1938_resume,
#endif
};
static int __init alsa_card_es1938_init(void)
{
return pci_register_driver(&driver);
}
static void __exit alsa_card_es1938_exit(void)
{
pci_unregister_driver(&driver);
}
module_init(alsa_card_es1938_init)
module_exit(alsa_card_es1938_exit)
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