/* $Id: cs4231.c,v 1.44 2001/02/13 01:16:59 davem Exp $
* drivers/sbus/audio/cs4231.c
*
* Copyright 1996, 1997, 1998, 1999 Derrick J Brashear (shadow@andrew.cmu.edu)
* The 4231/ebus support was written by David Miller, who didn't bother
* crediting himself here, so I will.
*
* Based on the AMD7930 driver:
* Copyright 1996 Thomas K. Dyas (tdyas@noc.rutgers.edu)
*
* This is the lowlevel driver for the CS4231 audio chip found on some
* sun4m and sun4u machines.
*
* This was culled from the Crystal docs on the 4231a, and the addendum they
* faxed me on the 4231.
* The APC DMA controller support unfortunately is not documented. Thanks, Sun.
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/soundcard.h>
#include <linux/version.h>
#include <linux/ioport.h>
#include <asm/openprom.h>
#include <asm/oplib.h>
#include <asm/system.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/sbus.h>
#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE > 0x200ff && defined(CONFIG_PCI)
#define EB4231_SUPPORT
#include <asm/ebus.h>
#include <asm/pbm.h>
#endif
#include <asm/audioio.h>
#include "cs4231.h"
#undef __CS4231_DEBUG
#undef __CS4231_TRACE
#define __CS4231_ERROR
#ifdef __CS4231_ERROR
#define eprintk(x) printk x
#else
#define eprintk(x)
#endif
#ifdef __CS4231_TRACE
#define tprintk(x) printk x
#else
#define tprintk(x)
#endif
#ifdef __CS4231_DEBUG
#define dprintk(x) printk x
#else
#define dprintk(x)
#endif
#define MAX_DRIVERS 1
static struct sparcaudio_driver drivers[MAX_DRIVERS];
static int num_drivers;
static int cs4231_record_gain(struct sparcaudio_driver *drv, int value,
unsigned char balance);
static int cs4231_play_gain(struct sparcaudio_driver *drv, int value,
unsigned char balance);
static void cs4231_ready(struct sparcaudio_driver *drv);
static void cs4231_playintr(struct sparcaudio_driver *drv, int);
static int cs4231_recintr(struct sparcaudio_driver *drv);
static int cs4231_output_muted(struct sparcaudio_driver *drv, int value);
static void cs4231_pollinput(struct sparcaudio_driver *drv);
static int cs4231_length_to_samplecount(struct audio_prinfo *thisdir,
unsigned int length);
static void cs4231_getsamplecount(struct sparcaudio_driver *drv,
unsigned int length, unsigned int value);
#ifdef EB4231_SUPPORT
static void eb4231_pollinput(struct sparcaudio_driver *drv);
#endif
/* Serveral shorthands save typing... */
#define CHIP_READY() \
do { udelay(100); cs4231_ready(drv); udelay(1000); } while(0)
#define WRITE_IAR(__VAL) \
CS4231_WRITE8(cs4231_chip, cs4231_chip->regs + IAR, __VAL)
#define WRITE_IDR(__VAL) \
CS4231_WRITE8(cs4231_chip, cs4231_chip->regs + IDR, __VAL)
#define READ_IAR() \
CS4231_READ8(cs4231_chip, cs4231_chip->regs + IAR)
#define READ_IDR() \
CS4231_READ8(cs4231_chip, cs4231_chip->regs + IDR)
/* Enable cs4231 interrupts atomically. */
static void cs4231_enable_interrupts(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
unsigned long flags;
tprintk(("enabling interrupts\n"));
save_flags(flags);
cli();
if ((cs4231_chip->status & CS_STATUS_INTS_ON) == 0) {
WRITE_IAR(0xa);
WRITE_IDR(INTR_ON);
cs4231_chip->status |= CS_STATUS_INTS_ON;
}
restore_flags(flags);
}
/* Disable cs4231 interrupts atomically. */
static void cs4231_disable_interrupts(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
unsigned long flags;
tprintk(("disabling interrupts\n"));
save_flags(flags);
cli();
if ((cs4231_chip->status & CS_STATUS_INTS_ON) != 0) {
WRITE_IAR(0xa);
WRITE_IDR(INTR_OFF);
cs4231_chip->status &= ~CS_STATUS_INTS_ON;
}
restore_flags(flags);
}
static void cs4231_enable_play(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
unsigned long flags;
tprintk(("enabling play\n"));
save_flags(flags);
cli();
WRITE_IAR(0x9);
WRITE_IDR(READ_IDR() | PEN_ENABLE);
restore_flags(flags);
}
static void cs4231_disable_play(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
unsigned long flags;
tprintk(("disabling play\n"));
save_flags(flags);
cli();
WRITE_IAR(0x9);
WRITE_IDR(READ_IDR() & PEN_DISABLE);
restore_flags(flags);
}
static void cs4231_enable_rec(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
unsigned long flags;
tprintk(("enabling rec\n"));
save_flags(flags);
cli();
WRITE_IAR(0x9);
WRITE_IDR(READ_IDR() | CEN_ENABLE);
restore_flags(flags);
}
static void cs4231_disable_rec(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
unsigned long flags;
tprintk(("disabling rec\n"));
save_flags(flags);
cli();
WRITE_IAR(0x9);
WRITE_IDR(READ_IDR() & CEN_DISABLE);
restore_flags(flags);
}
static struct cs4231_rates {
int speed, bits;
} cs4231_rate_table[] = {
{ 5512, CS4231_DFR_5512 },
{ 6615, CS4231_DFR_6615 },
{ 8000, CS4231_DFR_8000 },
{ 9600, CS4231_DFR_9600 },
{ 11025, CS4231_DFR_11025 },
{ 16000, CS4231_DFR_16000 },
{ 18900, CS4231_DFR_18900 },
{ 22050, CS4231_DFR_22050 },
{ 27429, CS4231_DFR_27429 },
{ 32000, CS4231_DFR_32000 },
{ 33075, CS4231_DFR_33075 },
{ 37800, CS4231_DFR_37800 },
{ 44100, CS4231_DFR_44100 },
{ 48000, CS4231_DFR_48000 }
};
#define NUM_RATES (sizeof(cs4231_rate_table) / sizeof(struct cs4231_rates))
static int cs4231_rate_to_bits(struct sparcaudio_driver *drv, int *value)
{
struct cs4231_rates *p = &cs4231_rate_table[0];
int i, wanted = *value;
/* We try to be nice and approximate what the user asks for. */
if (wanted < 5512)
wanted = 5512;
if (wanted > 48000)
wanted = 48000;
for (i = 0; i < NUM_RATES; i++, p++) {
/* Exact match? */
if (wanted == p->speed)
break;
/* If we're inbetween two entries, and neither is exact,
* pick the closest one.
*/
if (wanted == p[1].speed)
continue;
if (wanted > p->speed && wanted < p[1].speed) {
int diff1, diff2;
diff1 = wanted - p->speed;
diff2 = p[1].speed - wanted;
if (diff2 < diff1)
p++;
break;
}
}
*value = p->speed;
return p->bits;
}
static int cs4231_encoding_to_bits(struct sparcaudio_driver *drv, int value)
{
int set_bits;
switch (value) {
case AUDIO_ENCODING_ULAW:
set_bits = CS4231_DFR_ULAW;
break;
case AUDIO_ENCODING_ALAW:
set_bits = CS4231_DFR_ALAW;
break;
case AUDIO_ENCODING_DVI:
set_bits = CS4231_DFR_ADPCM;
break;
case AUDIO_ENCODING_LINEARLE:
set_bits = CS4231_DFR_LINEARLE;
break;
case AUDIO_ENCODING_LINEAR:
set_bits = CS4231_DFR_LINEARBE;
break;
case AUDIO_ENCODING_LINEAR8:
set_bits = CS4231_DFR_LINEAR8;
break;
default:
set_bits = -EINVAL;
break;
};
return set_bits;
}
static int cs4231_set_output_encoding(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int tmp_bits, set_bits;
tprintk(("output encoding %d\n", value));
if (value != 0) {
set_bits = cs4231_encoding_to_bits(drv, value);
if (set_bits >= 0) {
READ_IDR();
READ_IDR();
WRITE_IAR(IAR_AUTOCAL_BEGIN | 0x8);
tmp_bits = READ_IDR();
WRITE_IDR(CHANGE_ENCODING(tmp_bits, set_bits));
READ_IDR();
READ_IDR();
CHIP_READY();
cs4231_chip->perchip_info.play.encoding = value;
return 0;
}
}
dprintk(("output enc failed\n"));
return -EINVAL;
}
static int cs4231_get_output_encoding(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return cs4231_chip->perchip_info.play.encoding;
}
static int cs4231_set_input_encoding(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int tmp_bits, set_bits;
tprintk(("input encoding %d\n", value));
if (value != 0) {
set_bits = cs4231_encoding_to_bits(drv, value);
if (set_bits >= 0) {
READ_IDR();
READ_IDR();
WRITE_IAR(IAR_AUTOCAL_BEGIN | 0x1c);
tmp_bits = READ_IDR();
WRITE_IDR(CHANGE_ENCODING(tmp_bits, set_bits));
READ_IDR();
READ_IDR();
CHIP_READY();
cs4231_chip->perchip_info.record.encoding = value;
return 0;
}
}
dprintk(("input enc failed\n"));
return -EINVAL;
}
static int cs4231_get_input_encoding(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return cs4231_chip->perchip_info.record.encoding;
}
static int cs4231_set_output_rate(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int tmp_bits, set_bits;
tprintk(("output rate %d\n", value));
if (value != 0) {
set_bits = cs4231_rate_to_bits(drv, &value);
if (set_bits >= 0) {
READ_IDR();
READ_IDR();
WRITE_IAR(IAR_AUTOCAL_BEGIN | 0x8);
tmp_bits = READ_IDR();
WRITE_IDR(CHANGE_DFR(tmp_bits, set_bits));
READ_IDR();
READ_IDR();
CHIP_READY();
cs4231_chip->perchip_info.play.sample_rate = value;
tprintk(("tmp_bits[%02x] set_bits[%02x] CHANGE_DFR[%02x]\n",
tmp_bits, set_bits, CHANGE_DFR(tmp_bits, set_bits)));
return 0;
}
}
dprintk(("output rate failed\n"));
return -EINVAL;
}
static int cs4231_get_output_rate(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return cs4231_chip->perchip_info.play.sample_rate;
}
static int cs4231_set_input_rate(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int tmp_bits, set_bits;
tprintk(("input rate %d\n", value));
if (value != 0) {
set_bits = cs4231_rate_to_bits(drv, &value);
if (set_bits >= 0) {
READ_IDR();
READ_IDR();
WRITE_IAR(IAR_AUTOCAL_BEGIN | 0x1c);
tmp_bits = READ_IDR();
WRITE_IDR(CHANGE_DFR(tmp_bits, set_bits));
READ_IDR();
READ_IDR();
CHIP_READY();
cs4231_chip->perchip_info.record.sample_rate = value;
return 0;
}
}
dprintk(("input rate failed\n"));
return -EINVAL;
}
static int cs4231_get_input_rate(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return cs4231_chip->perchip_info.record.sample_rate;
}
/* Generically we support 4 channels. This hardware does 2 */
static int cs4231_set_input_channels(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int tmp_bits;
tprintk(("input channels %d\n", value));
WRITE_IAR(IAR_AUTOCAL_BEGIN | 0x1c);
tmp_bits = READ_IDR();
switch (value) {
case 1:
WRITE_IDR(CS4231_MONO_ON(tmp_bits));
break;
case 2:
WRITE_IDR(CS4231_STEREO_ON(tmp_bits));
break;
default:
dprintk(("input chan failed\n"));
return -EINVAL;
};
CHIP_READY();
cs4231_chip->perchip_info.record.channels = value;
return 0;
}
static int cs4231_get_input_channels(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return cs4231_chip->perchip_info.record.channels;
}
/* Generically we support 4 channels. This hardware does 2 */
static int cs4231_set_output_channels(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int tmp_bits;
tprintk(("output channels %d\n", value));
WRITE_IAR(IAR_AUTOCAL_BEGIN | 0x8);
tmp_bits = READ_IDR();
switch (value) {
case 1:
WRITE_IDR(CS4231_MONO_ON(tmp_bits));
break;
case 2:
WRITE_IDR(CS4231_STEREO_ON(tmp_bits));
break;
default:
dprintk(("output chan failed\n"));
return -EINVAL;
};
CHIP_READY();
cs4231_chip->perchip_info.play.channels = value;
return 0;
}
static int cs4231_get_output_channels(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return cs4231_chip->perchip_info.play.channels;
}
static int cs4231_get_input_precision(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return cs4231_chip->perchip_info.record.precision;
}
static int cs4231_get_output_precision(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return cs4231_chip->perchip_info.play.precision;
}
static int cs4231_set_input_precision(struct sparcaudio_driver *drv, int val)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
cs4231_chip->perchip_info.record.precision = val;
return cs4231_chip->perchip_info.record.precision;
}
static int cs4231_set_output_precision(struct sparcaudio_driver *drv, int val)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
cs4231_chip->perchip_info.play.precision = val;
return cs4231_chip->perchip_info.play.precision;
}
/* Wait until the auto calibration process has finished */
static void cs4231_ready(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
unsigned int x;
WRITE_IAR(IAR_AUTOCAL_END);
x = 0;
do {
if (READ_IDR() != IAR_NOT_READY)
break;
x++;
} while (x <= CS_TIMEOUT);
WRITE_IAR(0x0b);
x = 0;
do {
if (READ_IDR() != AUTOCAL_IN_PROGRESS)
break;
x++;
} while (x <= CS_TIMEOUT);
}
/* Set output mute */
static int cs4231_output_muted(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
tprintk(("in cs4231_output_muted: %d\n", value));
if (!value) {
WRITE_IAR(0x7);
WRITE_IDR(READ_IDR() & OUTCR_UNMUTE);
WRITE_IAR(0x6);
WRITE_IDR(READ_IDR() & OUTCR_UNMUTE);
cs4231_chip->perchip_info.output_muted = 0;
} else {
WRITE_IAR(0x7);
WRITE_IDR(READ_IDR() | OUTCR_MUTE);
WRITE_IAR(0x6);
WRITE_IDR(READ_IDR() | OUTCR_MUTE);
cs4231_chip->perchip_info.output_muted = 1;
}
return 0;
}
static int cs4231_get_output_muted(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return cs4231_chip->perchip_info.output_muted;
}
static int cs4231_get_formats(struct sparcaudio_driver *drv)
{
return (AFMT_MU_LAW | AFMT_A_LAW |
AFMT_U8 | AFMT_IMA_ADPCM |
AFMT_S16_LE | AFMT_S16_BE);
}
static int cs4231_get_output_ports(struct sparcaudio_driver *drv)
{
return (AUDIO_LINE_OUT | AUDIO_SPEAKER | AUDIO_HEADPHONE);
}
static int cs4231_get_input_ports(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
/* This apparently applies only to APC ultras, not ebus ultras */
if (cs4231_chip->status & CS_STATUS_IS_ULTRA)
return (AUDIO_LINE_IN | AUDIO_MICROPHONE | AUDIO_ANALOG_LOOPBACK);
else
return (AUDIO_INTERNAL_CD_IN | AUDIO_LINE_IN |
AUDIO_MICROPHONE | AUDIO_ANALOG_LOOPBACK);
}
/* Set chip "output" port */
static int cs4231_set_output_port(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int retval = 0;
tprintk(("output port: %d\n", value));
/* Aaaaaah! It's all coming so fast! Turn it all off, then selectively
* enable things.
*/
WRITE_IAR(0x1a);
WRITE_IDR(READ_IDR() | MONO_IOCR_MUTE);
WRITE_IAR(0x0a);
WRITE_IDR(READ_IDR() | PINCR_LINE_MUTE);
WRITE_IDR(READ_IDR() | PINCR_HDPH_MUTE);
if (value & AUDIO_SPEAKER) {
WRITE_IAR(0x1a);
WRITE_IDR(READ_IDR() & ~MONO_IOCR_MUTE);
retval |= AUDIO_SPEAKER;
}
if (value & AUDIO_HEADPHONE) {
WRITE_IAR(0x0a);
WRITE_IDR(READ_IDR() & ~PINCR_HDPH_MUTE);
retval |= AUDIO_HEADPHONE;
}
if (value & AUDIO_LINE_OUT) {
WRITE_IAR(0x0a);
WRITE_IDR(READ_IDR() & ~PINCR_LINE_MUTE);
retval |= AUDIO_LINE_OUT;
}
cs4231_chip->perchip_info.play.port = retval;
return (retval);
}
static int cs4231_get_output_port(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return cs4231_chip->perchip_info.play.port;
}
/* Set chip "input" port */
static int cs4231_set_input_port(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int retval = 0;
tprintk(("input port: %d\n", value));
/* You can have one and only one. This is probably wrong, but
* appears to be how SunOS is doing it. Should be able to mix.
* More work to be done. CD input mixable, analog loopback may be.
*/
/* Ultra systems do not support AUDIO_INTERNAL_CD_IN */
/* This apparently applies only to APC ultras, not ebus ultras */
if (!(cs4231_chip->status & CS_STATUS_IS_ULTRA)) {
if (value & AUDIO_INTERNAL_CD_IN) {
WRITE_IAR(0x1);
WRITE_IDR(CDROM_ENABLE(READ_IDR()));
WRITE_IAR(0x0);
WRITE_IDR(CDROM_ENABLE(READ_IDR()));
retval = AUDIO_INTERNAL_CD_IN;
}
}
if ((value & AUDIO_LINE_IN)) {
WRITE_IAR(0x1);
WRITE_IDR(LINE_ENABLE(READ_IDR()));
WRITE_IAR(0x0);
WRITE_IDR(LINE_ENABLE(READ_IDR()));
retval = AUDIO_LINE_IN;
} else if (value & AUDIO_MICROPHONE) {
WRITE_IAR(0x1);
WRITE_IDR(MIC_ENABLE(READ_IDR()));
WRITE_IAR(0x0);
WRITE_IDR(MIC_ENABLE(READ_IDR()));
retval = AUDIO_MICROPHONE;
} else if (value & AUDIO_ANALOG_LOOPBACK) {
WRITE_IAR(0x1);
WRITE_IDR(OUTPUTLOOP_ENABLE(READ_IDR()));
WRITE_IAR(0x0);
WRITE_IDR(OUTPUTLOOP_ENABLE(READ_IDR()));
retval = AUDIO_ANALOG_LOOPBACK;
}
cs4231_chip->perchip_info.record.port = retval;
return retval;
}
static int cs4231_get_input_port(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return cs4231_chip->perchip_info.record.port;
}
/* Set chip "monitor" gain */
static int cs4231_set_monitor_volume(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int a = 0;
tprintk(("monitor gain: %d\n", value));
/* This interpolation really sucks. The question is, be compatible
* with ScumOS/Sloaris or not?
*/
a = CS4231_MON_MAX_ATEN - (value * (CS4231_MON_MAX_ATEN + 1) /
(AUDIO_MAX_GAIN + 1));
WRITE_IAR(0x0d);
if (a >= CS4231_MON_MAX_ATEN)
WRITE_IDR(LOOPB_OFF);
else
WRITE_IDR((a << 2) | LOOPB_ON);
if (value == AUDIO_MAX_GAIN)
cs4231_chip->perchip_info.monitor_gain = AUDIO_MAX_GAIN;
else
cs4231_chip->perchip_info.monitor_gain =
((CS4231_MAX_DEV_ATEN - a) *
(AUDIO_MAX_GAIN + 1) /
(CS4231_MAX_DEV_ATEN + 1));
return 0;
}
static int cs4231_get_monitor_volume(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return (int) cs4231_chip->perchip_info.monitor_gain;
}
static int cs4231_get_output_error(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return (int) cs4231_chip->perchip_info.play.error;
}
static int cs4231_get_input_error(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return (int) cs4231_chip->perchip_info.record.error;
}
#ifdef EB4231_SUPPORT
static int eb4231_get_output_samples(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
u32 dbcr = readl(cs4231_chip->eb2p + EBDMA_COUNT);
int count =
cs4231_length_to_samplecount(&cs4231_chip->perchip_info.play, dbcr);
return (cs4231_chip->perchip_info.play.samples -
((count > cs4231_chip->perchip_info.play.samples)
? 0 : count));
}
static int eb4231_get_input_samples(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
u32 dbcr = readl(cs4231_chip->eb2c + EBDMA_COUNT);
int count =
cs4231_length_to_samplecount(&cs4231_chip->perchip_info.record, dbcr);
return (cs4231_chip->perchip_info.record.samples -
((count > cs4231_chip->perchip_info.record.samples) ?
0 : count));
}
#endif
static int cs4231_get_output_samples(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
u32 dmapc = sbus_readl(cs4231_chip->regs + APCPC);
int count =
cs4231_length_to_samplecount(&cs4231_chip->perchip_info.play, dmapc);
return (cs4231_chip->perchip_info.play.samples -
((count > cs4231_chip->perchip_info.play.samples)
? 0 : count));
}
static int cs4231_get_input_samples(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
u32 dmacc = sbus_readl(cs4231_chip->regs + APCCC);
int count =
cs4231_length_to_samplecount(&cs4231_chip->perchip_info.record, dmacc);
return (cs4231_chip->perchip_info.record.samples -
((count > cs4231_chip->perchip_info.record.samples) ?
0 : count));
}
static int cs4231_get_output_pause(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return (int) cs4231_chip->perchip_info.play.pause;
}
static int cs4231_get_input_pause(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return (int) cs4231_chip->perchip_info.record.pause;
}
/* But for play/record we have these cheesy jacket routines because of
* how this crap gets set.
*/
static int cs4231_set_input_volume(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
cs4231_record_gain(drv, value,
cs4231_chip->perchip_info.record.balance);
return 0;
}
static int cs4231_get_input_volume(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return (int) cs4231_chip->perchip_info.record.gain;
}
static int cs4231_set_output_volume(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
cs4231_play_gain(drv, value, cs4231_chip->perchip_info.play.balance);
return 0;
}
static int cs4231_get_output_volume(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return cs4231_chip->perchip_info.play.gain;
}
/* Likewise for balance */
static int cs4231_set_input_balance(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
cs4231_chip->perchip_info.record.balance = value;
cs4231_record_gain(drv, cs4231_chip->perchip_info.record.gain,
cs4231_chip->perchip_info.record.balance);
return 0;
}
static int cs4231_get_input_balance(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return (int) cs4231_chip->perchip_info.record.balance;
}
static int cs4231_set_output_balance(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
cs4231_chip->perchip_info.play.balance = value;
cs4231_play_gain(drv, cs4231_chip->perchip_info.play.gain,
cs4231_chip->perchip_info.play.balance);
return 0;
}
static int cs4231_get_output_balance(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
return (int) cs4231_chip->perchip_info.play.balance;
}
/* Set chip record gain */
static int cs4231_record_gain(struct sparcaudio_driver *drv, int value,
unsigned char balance)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int tmp = 0, r, l, r_adj, l_adj;
unsigned char old_gain;
r = l = value;
if (balance < AUDIO_MID_BALANCE) {
r = (int) (value -
((AUDIO_MID_BALANCE - balance) << AUDIO_BALANCE_SHIFT));
if (r < 0)
r = 0;
} else if (balance > AUDIO_MID_BALANCE) {
l = (int) (value -
((balance - AUDIO_MID_BALANCE) << AUDIO_BALANCE_SHIFT));
if (l < 0)
l = 0;
}
l_adj = l * (CS4231_MAX_GAIN + 1) / (AUDIO_MAX_GAIN + 1);
r_adj = r * (CS4231_MAX_GAIN + 1) / (AUDIO_MAX_GAIN + 1);
WRITE_IAR(0x0);
old_gain = READ_IDR();
WRITE_IDR(RECGAIN_SET(old_gain, l_adj));
WRITE_IAR(0x1);
old_gain = READ_IDR();
WRITE_IDR(RECGAIN_SET(old_gain, r_adj));
if (l == value) {
(l == 0) ? (tmp = 0) : (tmp = ((l_adj + 1) * AUDIO_MAX_GAIN) /
(CS4231_MAX_GAIN + 1));
} else if (r == value) {
(r == 0) ? (tmp = 0) : (tmp = ((r_adj + 1) * AUDIO_MAX_GAIN) /
(CS4231_MAX_GAIN + 1));
}
cs4231_chip->perchip_info.record.gain = tmp;
return 0;
}
/* Set chip play gain */
static int cs4231_play_gain(struct sparcaudio_driver *drv, int value,
unsigned char balance)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int tmp = 0, r, l, r_adj, l_adj;
unsigned char old_gain;
tprintk(("in play_gain: %d %c\n", value, balance));
r = l = value;
if (balance < AUDIO_MID_BALANCE) {
r = (int) (value -
((AUDIO_MID_BALANCE - balance) << AUDIO_BALANCE_SHIFT));
if (r < 0)
r = 0;
} else if (balance > AUDIO_MID_BALANCE) {
l = (int) (value -
((balance - AUDIO_MID_BALANCE) << AUDIO_BALANCE_SHIFT));
if (l < 0)
l = 0;
}
(l == 0) ? (l_adj = CS4231_MAX_DEV_ATEN) : (l_adj = CS4231_MAX_ATEN -
(l * (CS4231_MAX_ATEN + 1) /
(AUDIO_MAX_GAIN + 1)));
(r == 0) ? (r_adj = CS4231_MAX_DEV_ATEN) : (r_adj = CS4231_MAX_ATEN -
(r * (CS4231_MAX_ATEN + 1) /
(AUDIO_MAX_GAIN + 1)));
WRITE_IAR(0x6);
old_gain = READ_IDR();
WRITE_IDR(GAIN_SET(old_gain, l_adj));
WRITE_IAR(0x7);
old_gain = READ_IDR();
WRITE_IDR(GAIN_SET(old_gain, r_adj));
if ((value == 0) || (value == AUDIO_MAX_GAIN)) {
tmp = value;
} else {
if (value == l) {
tmp = ((CS4231_MAX_ATEN - l_adj) * (AUDIO_MAX_GAIN + 1) /
(CS4231_MAX_ATEN + 1));
} else if (value == r) {
tmp = ((CS4231_MAX_ATEN - r_adj) * (AUDIO_MAX_GAIN + 1) /
(CS4231_MAX_ATEN + 1));
}
}
cs4231_chip->perchip_info.play.gain = tmp;
return 0;
}
/* Reset the audio chip to a sane state. */
static void cs4231_chip_reset(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
unsigned char vers;
tprintk(("in cs4231_chip_reset\n"));
if (cs4231_chip->status & CS_STATUS_IS_EBUS) {
#ifdef EB4231_SUPPORT
writel(EBUS_DCSR_RESET, cs4231_chip->eb2p + EBDMA_CSR);
writel(EBUS_DCSR_RESET, cs4231_chip->eb2c + EBDMA_CSR);
writel(EBUS_DCSR_BURST_SZ_16, cs4231_chip->eb2p + EBDMA_CSR);
writel(EBUS_DCSR_BURST_SZ_16, cs4231_chip->eb2c + EBDMA_CSR);
#endif
} else {
u32 tmp;
sbus_writel(APC_CHIP_RESET, cs4231_chip->regs + APCCSR);
sbus_writel(0x00, cs4231_chip->regs + APCCSR);
tmp = sbus_readl(cs4231_chip->regs + APCCSR);
tmp |= APC_CDC_RESET;
sbus_writel(tmp, cs4231_chip->regs + APCCSR);
udelay(20);
tmp = sbus_readl(cs4231_chip->regs + APCCSR);
tmp &= ~(APC_CDC_RESET);
sbus_writel(tmp, cs4231_chip->regs + APCCSR);
}
WRITE_IAR(READ_IAR() | IAR_AUTOCAL_BEGIN);
CHIP_READY();
WRITE_IAR(IAR_AUTOCAL_BEGIN | 0x0c);
WRITE_IDR(MISC_IR_MODE2);
/* This is the equivalent of DEFAULT_DATA_FMAT */
cs4231_set_input_encoding(drv, AUDIO_ENCODING_ULAW);
cs4231_set_input_rate(drv, CS4231_RATE);
cs4231_set_input_channels(drv, CS4231_CHANNELS);
cs4231_set_input_precision(drv, CS4231_PRECISION);
cs4231_set_output_encoding(drv, AUDIO_ENCODING_ULAW);
cs4231_set_output_rate(drv, CS4231_RATE);
cs4231_set_output_channels(drv, CS4231_CHANNELS);
cs4231_set_output_precision(drv, CS4231_PRECISION);
WRITE_IAR(0x19);
/* see what we can turn on */
vers = READ_IDR();
if (vers & CS4231A) {
tprintk(("This is a CS4231A\n"));
cs4231_chip->status |= CS_STATUS_REV_A;
} else {
cs4231_chip->status &= ~CS_STATUS_REV_A;
}
WRITE_IAR(IAR_AUTOCAL_BEGIN | 0x10);
WRITE_IDR(OLB_ENABLE);
WRITE_IAR(IAR_AUTOCAL_BEGIN | 0x11);
if (cs4231_chip->status & CS_STATUS_REV_A)
WRITE_IDR(HPF_ON | XTALE_ON);
else
WRITE_IDR(HPF_ON);
WRITE_IAR(IAR_AUTOCAL_BEGIN | 0x1a);
WRITE_IDR(0x00);
/* Now set things up for defaults */
cs4231_set_input_balance(drv, AUDIO_MID_BALANCE);
cs4231_set_output_balance(drv, AUDIO_MID_BALANCE);
cs4231_set_input_volume(drv, CS4231_DEFAULT_RECGAIN);
cs4231_set_output_volume(drv, CS4231_DEFAULT_PLAYGAIN);
cs4231_set_input_port(drv, AUDIO_MICROPHONE);
cs4231_set_output_port(drv, AUDIO_SPEAKER);
cs4231_set_monitor_volume(drv, LOOPB_OFF);
WRITE_IAR(IAR_AUTOCAL_END);
cs4231_ready(drv);
WRITE_IAR(IAR_AUTOCAL_BEGIN | 0x09);
WRITE_IDR(READ_IDR() & ACAL_DISABLE);
WRITE_IAR(IAR_AUTOCAL_END);
cs4231_ready(drv);
cs4231_output_muted(drv, 0);
cs4231_chip->recording_count = 0;
cs4231_chip->input_next_dma_handle = 0;
cs4231_chip->input_dma_handle = 0;
cs4231_chip->input_next_dma_size = 0;
cs4231_chip->input_dma_size = 0;
cs4231_chip->playing_count = 0;
cs4231_chip->output_next_dma_handle = 0;
cs4231_chip->output_dma_handle = 0;
cs4231_chip->output_next_dma_size = 0;
cs4231_chip->output_dma_size = 0;
}
static int
cs4231_length_to_samplecount(struct audio_prinfo *thisdir, unsigned int length)
{
unsigned int count;
if (thisdir->channels == 2)
count = (length / 2);
else
count = length;
if (thisdir->encoding == AUDIO_ENCODING_LINEAR)
count = (count / 2);
else if (thisdir->encoding == AUDIO_ENCODING_DVI)
count = (count / 4);
return count;
}
#ifdef EB4231_SUPPORT
static void eb4231_getsamplecount(struct sparcaudio_driver *drv,
unsigned int length,
unsigned int direction)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
struct audio_prinfo *thisdir;
unsigned int count, curcount, nextcount, dbcr;
if(direction == 1) {
thisdir = &cs4231_chip->perchip_info.record;
dbcr = readl(cs4231_chip->eb2c + EBDMA_COUNT);
nextcount = cs4231_chip->input_next_dma_size;
} else {
thisdir = &cs4231_chip->perchip_info.play;
dbcr = readl(cs4231_chip->eb2p + EBDMA_COUNT);
nextcount = cs4231_chip->output_next_dma_size;
}
curcount = cs4231_length_to_samplecount(thisdir, dbcr);
count = thisdir->samples;
length = cs4231_length_to_samplecount(thisdir, length);
/* normalize for where we are. */
thisdir->samples = ((count - nextcount) + (length - curcount));
}
#endif
static void cs4231_getsamplecount(struct sparcaudio_driver *drv,
unsigned int length,
unsigned int direction)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
struct audio_prinfo *thisdir;
unsigned int count, nextcount, curcount;
u32 tmp;
if (direction == 1) {
/* record */
thisdir = &cs4231_chip->perchip_info.record;
tmp = sbus_readl(cs4231_chip->regs + APCCC);
curcount = cs4231_length_to_samplecount(thisdir, tmp);
tmp = sbus_readl(cs4231_chip->regs + APCCNC);
nextcount = cs4231_length_to_samplecount(thisdir, tmp);
} else {
/* play */
thisdir = &cs4231_chip->perchip_info.play;
tmp = sbus_readl(cs4231_chip->regs + APCPC);
curcount = cs4231_length_to_samplecount(thisdir, tmp);
tmp = sbus_readl(cs4231_chip->regs + APCPNC);
nextcount = cs4231_length_to_samplecount(thisdir, tmp);
}
count = thisdir->samples;
length = cs4231_length_to_samplecount(thisdir, length);
/* normalize for where we are. */
thisdir->samples = ((count - nextcount) + (length - curcount));
}
static int cs4231_open(struct inode * inode, struct file * file, struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
/* Set the default audio parameters if not already in use. */
if (file->f_mode & FMODE_WRITE) {
if (!(drv->flags & SDF_OPEN_WRITE) &&
(cs4231_chip->perchip_info.play.active == 0)) {
cs4231_chip->perchip_info.play.open = 1;
cs4231_chip->perchip_info.play.samples =
cs4231_chip->perchip_info.play.error = 0;
}
}
if (file->f_mode & FMODE_READ) {
if (!(drv->flags & SDF_OPEN_READ) &&
(cs4231_chip->perchip_info.record.active == 0)) {
cs4231_chip->perchip_info.record.open = 1;
cs4231_chip->perchip_info.record.samples =
cs4231_chip->perchip_info.record.error = 0;
}
}
cs4231_ready(drv);
CHIP_READY();
MOD_INC_USE_COUNT;
return 0;
}
static void cs4231_release(struct inode * inode, struct file * file, struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *)drv->private;
void (*dma_unmap_single)(struct sbus_dev *, dma_addr_t, size_t, int) = sbus_unmap_single;
#ifdef EB4231_SUPPORT
if (cs4231_chip->status & CS_STATUS_IS_EBUS)
dma_unmap_single = (void (*)(struct sbus_dev *, dma_addr_t, size_t, int)) pci_unmap_single;
#endif
/* zero out any info about what data we have as well */
if (file->f_mode & FMODE_READ) {
/* stop capture here or midlevel? */
cs4231_chip->perchip_info.record.open = 0;
if (cs4231_chip->input_dma_handle) {
dma_unmap_single(drv->dev,
cs4231_chip->input_dma_handle,
cs4231_chip->input_dma_size,
SBUS_DMA_FROMDEVICE);
cs4231_chip->input_dma_handle = 0;
cs4231_chip->input_dma_size = 0;
}
if (cs4231_chip->input_next_dma_handle) {
dma_unmap_single(drv->dev,
cs4231_chip->input_next_dma_handle,
cs4231_chip->input_next_dma_size,
SBUS_DMA_FROMDEVICE);
cs4231_chip->input_next_dma_handle = 0;
cs4231_chip->input_next_dma_size = 0;
}
}
if (file->f_mode & FMODE_WRITE) {
cs4231_chip->perchip_info.play.active =
cs4231_chip->perchip_info.play.open = 0;
if (cs4231_chip->output_dma_handle) {
dma_unmap_single(drv->dev,
cs4231_chip->output_dma_handle,
cs4231_chip->output_dma_size,
SBUS_DMA_TODEVICE);
cs4231_chip->output_dma_handle = 0;
cs4231_chip->output_dma_size = 0;
}
if (cs4231_chip->output_next_dma_handle) {
dma_unmap_single(drv->dev,
cs4231_chip->output_next_dma_handle,
cs4231_chip->output_next_dma_size,
SBUS_DMA_TODEVICE);
cs4231_chip->output_next_dma_handle = 0;
cs4231_chip->output_next_dma_size = 0;
}
}
if (!cs4231_chip->perchip_info.play.open &&
!cs4231_chip->perchip_info.record.open &&
(cs4231_chip->status & CS_STATUS_INIT_ON_CLOSE)) {
cs4231_chip_reset(drv);
cs4231_chip->status &= ~CS_STATUS_INIT_ON_CLOSE;
}
MOD_DEC_USE_COUNT;
}
static void cs4231_playintr(struct sparcaudio_driver *drv, int push)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int status = 0;
if (!push) {
if (!cs4231_chip->perchip_info.play.active) {
sbus_writel(cs4231_chip->output_next_dma_handle,
cs4231_chip->regs + APCPNVA);
sbus_writel(cs4231_chip->output_next_dma_size,
cs4231_chip->regs + APCPNC);
}
sparcaudio_output_done(drv, 0);
return;
}
if (cs4231_chip->playlen == 0 && cs4231_chip->output_size > 0)
cs4231_chip->playlen = cs4231_chip->output_size;
if (cs4231_chip->output_dma_handle) {
sbus_unmap_single(drv->dev,
cs4231_chip->output_dma_handle,
cs4231_chip->output_dma_size,
SBUS_DMA_TODEVICE);
cs4231_chip->output_dma_handle = 0;
cs4231_chip->output_dma_size = 0;
cs4231_chip->playing_count--;
status++;
}
if (cs4231_chip->output_next_dma_handle) {
cs4231_chip->output_dma_handle = cs4231_chip->output_next_dma_handle;
cs4231_chip->output_dma_size = cs4231_chip->output_next_dma_size;
cs4231_chip->output_next_dma_size = 0;
cs4231_chip->output_next_dma_handle = 0;
}
if ((cs4231_chip->output_ptr && cs4231_chip->output_size > 0) &&
!(cs4231_chip->perchip_info.play.pause)) {
cs4231_chip->output_next_dma_handle =
sbus_map_single(drv->dev,
(char *)cs4231_chip->output_ptr,
cs4231_chip->output_size,
SBUS_DMA_TODEVICE);
cs4231_chip->output_next_dma_size = cs4231_chip->output_size;
sbus_writel(cs4231_chip->output_next_dma_handle,
cs4231_chip->regs + APCPNVA);
sbus_writel(cs4231_chip->output_next_dma_size,
cs4231_chip->regs + APCPNC);
cs4231_chip->output_size = 0;
cs4231_chip->output_ptr = NULL;
cs4231_chip->playing_count++;
status += 2;
} else {
sbus_writel(0, cs4231_chip->regs + APCPNVA);
sbus_writel(0, cs4231_chip->regs + APCPNC);
}
sparcaudio_output_done(drv, status);
}
#ifdef EB4231_SUPPORT
static void eb4231_playintr(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int status = 0;
if (cs4231_chip->playlen == 0 && cs4231_chip->output_size > 0)
cs4231_chip->playlen = cs4231_chip->output_size;
if (cs4231_chip->output_dma_handle) {
pci_unmap_single((struct pci_dev *)drv->dev,
cs4231_chip->output_dma_handle,
cs4231_chip->output_dma_size,
PCI_DMA_TODEVICE);
cs4231_chip->output_dma_handle = 0;
cs4231_chip->output_dma_size = 0;
cs4231_chip->playing_count--;
status++;
}
if(cs4231_chip->output_next_dma_handle) {
cs4231_chip->output_dma_handle = cs4231_chip->output_next_dma_handle;
cs4231_chip->output_dma_size = cs4231_chip->output_next_dma_size;
cs4231_chip->output_next_dma_handle = 0;
cs4231_chip->output_next_dma_size = 0;
}
if ((cs4231_chip->output_ptr && cs4231_chip->output_size > 0) &&
!(cs4231_chip->perchip_info.play.pause)) {
cs4231_chip->output_next_dma_handle =
pci_map_single((struct pci_dev *)drv->dev,
(char *)cs4231_chip->output_ptr,
cs4231_chip->output_size,
PCI_DMA_TODEVICE);
cs4231_chip->output_next_dma_size = cs4231_chip->output_size;
writel(cs4231_chip->output_next_dma_size,
cs4231_chip->eb2p + EBDMA_COUNT);
writel(cs4231_chip->output_next_dma_handle,
cs4231_chip->eb2p + EBDMA_ADDR);
cs4231_chip->output_size = 0;
cs4231_chip->output_ptr = NULL;
cs4231_chip->playing_count++;
status += 2;
}
sparcaudio_output_done(drv, status);
}
#endif
static void cs4231_recclear(int fmt, char *dmabuf, int length)
{
switch (fmt) {
case AUDIO_ENCODING_LINEAR:
memset(dmabuf, 0x00, length);
break;
case AUDIO_ENCODING_ALAW:
memset(dmabuf, 0xd5, length);
break;
case AUDIO_ENCODING_ULAW:
memset(dmabuf, 0xff, length);
break;
}
}
static int cs4231_recintr(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int status = 0;
if (cs4231_chip->perchip_info.record.active == 0) {
dprintk(("going inactive\n"));
cs4231_pollinput(drv);
cs4231_disable_rec(drv);
}
if (cs4231_chip->input_dma_handle) {
sbus_unmap_single(drv->dev,
cs4231_chip->input_dma_handle,
cs4231_chip->input_dma_size,
SBUS_DMA_FROMDEVICE);
cs4231_chip->input_dma_handle = 0;
cs4231_chip->input_dma_size = 0;
cs4231_chip->recording_count--;
status++;
}
if (cs4231_chip->input_next_dma_handle) {
cs4231_chip->input_dma_handle = cs4231_chip->input_next_dma_handle;
cs4231_chip->input_dma_size = cs4231_chip->input_next_dma_size;
cs4231_chip->input_next_dma_size = 0;
cs4231_chip->input_next_dma_handle = 0;
}
if ((cs4231_chip->input_ptr && cs4231_chip->input_size > 0) &&
!(cs4231_chip->perchip_info.record.pause)) {
cs4231_recclear(cs4231_chip->perchip_info.record.encoding,
(char *)cs4231_chip->input_ptr,
cs4231_chip->input_size);
cs4231_chip->input_next_dma_handle =
sbus_map_single(drv->dev,
(char *)cs4231_chip->input_ptr,
cs4231_chip->input_size,
SBUS_DMA_FROMDEVICE);
cs4231_chip->input_next_dma_size = cs4231_chip->input_size;
sbus_writel(cs4231_chip->input_next_dma_handle,
cs4231_chip->regs + APCCNVA);
sbus_writel(cs4231_chip->input_next_dma_size,
cs4231_chip->regs + APCCNC);
cs4231_chip->input_size = 0;
cs4231_chip->input_ptr = NULL;
cs4231_chip->recording_count++;
status += 2;
} else {
sbus_writel(0, cs4231_chip->regs + APCCNVA);
sbus_writel(0, cs4231_chip->regs + APCCNC);
}
sparcaudio_input_done(drv, status);
return 1;
}
#ifdef EB4231_SUPPORT
static int eb4231_recintr(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int status = 0;
if (cs4231_chip->perchip_info.record.active == 0) {
dprintk(("going inactive\n"));
eb4231_pollinput(drv);
cs4231_disable_rec(drv);
}
if (cs4231_chip->input_dma_handle) {
pci_unmap_single((struct pci_dev *)drv->dev,
cs4231_chip->input_dma_handle,
cs4231_chip->input_dma_size,
PCI_DMA_FROMDEVICE);
cs4231_chip->input_dma_handle = 0;
cs4231_chip->input_dma_size = 0;
cs4231_chip->recording_count--;
status++;
}
if (cs4231_chip->input_next_dma_handle) {
cs4231_chip->input_dma_handle = cs4231_chip->input_next_dma_handle;
cs4231_chip->input_dma_size = cs4231_chip->input_next_dma_size;
cs4231_chip->input_next_dma_size = 0;
cs4231_chip->input_next_dma_handle = 0;
}
if ((cs4231_chip->input_ptr && cs4231_chip->input_size > 0) &&
!(cs4231_chip->perchip_info.record.pause)) {
cs4231_recclear(cs4231_chip->perchip_info.record.encoding,
(char *)cs4231_chip->input_ptr,
cs4231_chip->input_size);
cs4231_chip->input_next_dma_handle =
pci_map_single((struct pci_dev *)drv->dev,
(char *)cs4231_chip->input_ptr,
cs4231_chip->input_size,
PCI_DMA_FROMDEVICE);
cs4231_chip->input_next_dma_size = cs4231_chip->input_size;
writel(cs4231_chip->input_next_dma_size,
cs4231_chip->eb2c + EBDMA_COUNT);
writel(cs4231_chip->input_next_dma_handle,
cs4231_chip->eb2c + EBDMA_ADDR);
cs4231_chip->input_size = 0;
cs4231_chip->input_ptr = NULL;
cs4231_chip->recording_count++;
status += 2;
}
sparcaudio_input_done(drv, status);
return 1;
}
#endif
#ifdef EB4231_SUPPORT
static void eb4231_start_output(struct sparcaudio_driver *drv, __u8 * buffer,
unsigned long count)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
u32 dcsr;
cs4231_chip->output_ptr = buffer;
cs4231_chip->output_size = count;
if (cs4231_chip->perchip_info.play.active ||
(cs4231_chip->perchip_info.play.pause))
return;
cs4231_ready(drv);
cs4231_chip->perchip_info.play.active = 1;
cs4231_chip->playing_count = 0;
dcsr = readl(cs4231_chip->eb2p + EBDMA_CSR);
if (!(dcsr & EBUS_DCSR_EN_DMA)) {
writel(EBUS_DCSR_RESET, cs4231_chip->eb2p + EBDMA_CSR);
writel(EBUS_DCSR_BURST_SZ_16, cs4231_chip->eb2p + EBDMA_CSR);
eb4231_playintr(drv);
writel(EBUS_DCSR_BURST_SZ_16 |
(EBUS_DCSR_EN_DMA | EBUS_DCSR_INT_EN |
EBUS_DCSR_EN_CNT | EBUS_DCSR_EN_NEXT),
cs4231_chip->eb2p + EBDMA_CSR);
cs4231_enable_play(drv);
cs4231_ready(drv);
} else {
eb4231_playintr(drv);
}
}
#endif
static void cs4231_start_output(struct sparcaudio_driver *drv, __u8 * buffer,
unsigned long count)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
u32 csr;
tprintk(("in 4231 start output\n"));
cs4231_chip->output_ptr = buffer;
cs4231_chip->output_size = count;
if (cs4231_chip->perchip_info.play.active ||
(cs4231_chip->perchip_info.play.pause))
return;
cs4231_ready(drv);
cs4231_chip->perchip_info.play.active = 1;
cs4231_chip->playing_count = 0;
csr = sbus_readl(cs4231_chip->regs + APCCSR);
if ((csr & APC_PPAUSE) || !(csr & APC_PDMA_READY)) {
u32 pnva;
csr &= ~APC_XINT_PLAY;
sbus_writel(csr, cs4231_chip->regs + APCCSR);
csr &= ~APC_PPAUSE;
sbus_writel(csr, cs4231_chip->regs + APCCSR);
pnva = sbus_readl(cs4231_chip->regs + APCPNVA);
cs4231_playintr(drv, (pnva == 0) ? 1 : 0);
csr |= APC_PLAY_SETUP;
sbus_writel(csr, cs4231_chip->regs + APCCSR);
cs4231_enable_play(drv);
cs4231_ready(drv);
}
}
#ifdef EB4231_SUPPORT
static void eb4231_stop_output(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
u32 dcsr;
dprintk(("eb4231_stop_output: dcsr 0x%x dacr 0x%x dbcr %d\n",
readl(cs4231_chip->eb2p + EBDMA_CSR),
readl(cs4231_chip->eb2p + EBDMA_ADDR),
readl(cs4231_chip->eb2p + EBDMA_COUNT)));
cs4231_chip->output_ptr = NULL;
cs4231_chip->output_size = 0;
if (cs4231_chip->output_dma_handle) {
pci_unmap_single((struct pci_dev *)drv->dev,
cs4231_chip->output_dma_handle,
cs4231_chip->output_dma_size,
PCI_DMA_TODEVICE);
cs4231_chip->output_dma_handle = 0;
cs4231_chip->output_dma_size = 0;
}
if (cs4231_chip->output_next_dma_handle) {
pci_unmap_single((struct pci_dev *)drv->dev,
cs4231_chip->output_next_dma_handle,
cs4231_chip->output_next_dma_size,
PCI_DMA_TODEVICE);
cs4231_chip->output_next_dma_handle = 0;
cs4231_chip->output_next_dma_size = 0;
}
dcsr = readl(cs4231_chip->eb2p + EBDMA_CSR);
if(dcsr & EBUS_DCSR_EN_DMA)
writel(dcsr & ~EBUS_DCSR_EN_DMA,
cs4231_chip->eb2p + EBDMA_CSR);
/* Else subsequent speed setting changes are ignored by the chip. */
cs4231_disable_play(drv);
}
#endif
static void cs4231_stop_output(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
tprintk(("in cs4231_stop_output\n"));
cs4231_chip->output_ptr = NULL;
cs4231_chip->output_size = 0;
if (cs4231_chip->output_dma_handle) {
sbus_unmap_single(drv->dev,
cs4231_chip->output_dma_handle,
cs4231_chip->output_dma_size,
SBUS_DMA_TODEVICE);
cs4231_chip->output_dma_handle = 0;
cs4231_chip->output_dma_size = 0;
}
if (cs4231_chip->output_next_dma_handle) {
sbus_unmap_single(drv->dev,
cs4231_chip->output_next_dma_handle,
cs4231_chip->output_next_dma_size,
SBUS_DMA_TODEVICE);
cs4231_chip->output_next_dma_handle = 0;
cs4231_chip->output_next_dma_size = 0;
}
#if 0 /* Not safe without shutting off the DMA controller as well. -DaveM */
/* Else subsequent speed setting changes are ignored by the chip. */
cs4231_disable_play(drv);
#endif
}
#ifdef EB4231_SUPPORT
static void eb4231_pollinput(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int x;
u32 dcsr;
x = 0;
do {
dcsr = readl(cs4231_chip->eb2c + EBDMA_CSR);
if (dcsr & EBUS_DCSR_TC)
break;
x++;
} while (x <= CS_TIMEOUT);
writel(dcsr | EBUS_DCSR_TC,
cs4231_chip->eb2c + EBDMA_CSR);
}
#endif
static void cs4231_pollinput(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int x;
u32 csr;
x = 0;
do {
csr = sbus_readl(cs4231_chip->regs + APCCSR);
if (csr & APC_XINT_COVF)
break;
x++;
} while (x <= CS_TIMEOUT);
sbus_writel(csr | APC_XINT_CEMP,
cs4231_chip->regs + APCCSR);
}
static void cs4231_start_input(struct sparcaudio_driver *drv, __u8 * buffer,
unsigned long count)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
u32 csr;
cs4231_chip->input_ptr = buffer;
cs4231_chip->input_size = count;
if (cs4231_chip->perchip_info.record.active ||
(cs4231_chip->perchip_info.record.pause))
return;
cs4231_ready(drv);
cs4231_chip->perchip_info.record.active = 1;
cs4231_chip->recording_count = 0;
csr = sbus_readl(cs4231_chip->regs + APCCSR);
if ((csr & APC_CPAUSE) || !(csr & APC_CDMA_READY)) {
csr &= ~APC_XINT_CAPT;
sbus_writel(csr, cs4231_chip->regs + APCCSR);
csr &= ~APC_CPAUSE;
sbus_writel(csr, cs4231_chip->regs + APCCSR);
cs4231_recintr(drv);
csr |= APC_CAPT_SETUP;
sbus_writel(csr, cs4231_chip->regs + APCCSR);
cs4231_enable_rec(drv);
cs4231_ready(drv);
} else {
cs4231_recintr(drv);
}
}
static void cs4231_stop_input(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
u32 csr;
cs4231_chip->perchip_info.record.active = 0;
csr = sbus_readl(cs4231_chip->regs + APCCSR);
csr |= APC_CPAUSE;
sbus_writel(csr, cs4231_chip->regs + APCCSR);
cs4231_chip->input_ptr = NULL;
cs4231_chip->input_size = 0;
if (cs4231_chip->input_dma_handle) {
sbus_unmap_single(drv->dev,
cs4231_chip->input_dma_handle,
cs4231_chip->input_dma_size,
SBUS_DMA_FROMDEVICE);
cs4231_chip->input_dma_handle = 0;
cs4231_chip->input_dma_size = 0;
}
if (cs4231_chip->input_next_dma_handle) {
sbus_unmap_single(drv->dev,
cs4231_chip->input_next_dma_handle,
cs4231_chip->input_next_dma_size,
SBUS_DMA_FROMDEVICE);
cs4231_chip->input_next_dma_handle = 0;
cs4231_chip->input_next_dma_size = 0;
}
cs4231_pollinput(drv);
}
#ifdef EB4231_SUPPORT
static void eb4231_start_input(struct sparcaudio_driver *drv, __u8 * buffer,
unsigned long count)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
u32 dcsr;
cs4231_chip->input_ptr = buffer;
cs4231_chip->input_size = count;
if (cs4231_chip->perchip_info.record.active ||
(cs4231_chip->perchip_info.record.pause))
return;
cs4231_ready(drv);
cs4231_chip->perchip_info.record.active = 1;
cs4231_chip->recording_count = 0;
dcsr = readl(cs4231_chip->eb2c + EBDMA_CSR);
if (!(dcsr & EBUS_DCSR_EN_DMA)) {
writel(EBUS_DCSR_RESET, cs4231_chip->eb2c + EBDMA_CSR);
writel(EBUS_DCSR_BURST_SZ_16, cs4231_chip->eb2c + EBDMA_CSR);
eb4231_recintr(drv);
writel(EBUS_DCSR_BURST_SZ_16 |
(EBUS_DCSR_EN_DMA | EBUS_DCSR_INT_EN |
EBUS_DCSR_EN_CNT | EBUS_DCSR_EN_NEXT),
cs4231_chip->eb2c + EBDMA_CSR);
cs4231_enable_rec(drv);
cs4231_ready(drv);
} else {
eb4231_recintr(drv);
}
}
static void eb4231_stop_input(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
u32 dcsr;
cs4231_chip->perchip_info.record.active = 0;
cs4231_chip->input_ptr = NULL;
cs4231_chip->input_size = 0;
if (cs4231_chip->input_dma_handle) {
pci_unmap_single((struct pci_dev *)drv->dev,
cs4231_chip->input_dma_handle,
cs4231_chip->input_dma_size,
PCI_DMA_FROMDEVICE);
cs4231_chip->input_dma_handle = 0;
cs4231_chip->input_dma_size = 0;
}
if (cs4231_chip->input_next_dma_handle) {
pci_unmap_single((struct pci_dev *)drv->dev,
cs4231_chip->input_next_dma_handle,
cs4231_chip->input_next_dma_size,
PCI_DMA_FROMDEVICE);
cs4231_chip->input_next_dma_handle = 0;
cs4231_chip->input_next_dma_size = 0;
}
dcsr = readl(cs4231_chip->eb2c + EBDMA_CSR);
if (dcsr & EBUS_DCSR_EN_DMA)
writel(dcsr & ~EBUS_DCSR_EN_DMA, cs4231_chip->eb2c + EBDMA_CSR);
cs4231_disable_rec(drv);
}
#endif
static int cs4231_set_output_pause(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
cs4231_chip->perchip_info.play.pause = value;
if (!value)
sparcaudio_output_done(drv, 0);
return value;
}
static int cs4231_set_output_error(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int i;
i = cs4231_chip->perchip_info.play.error;
cs4231_chip->perchip_info.play.error = value;
return i;
}
static int cs4231_set_input_error(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int i;
i = cs4231_chip->perchip_info.record.error;
cs4231_chip->perchip_info.record.error = value;
return i;
}
static int cs4231_set_output_samples(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *)drv->private;
int i;
i = cs4231_chip->perchip_info.play.samples;
cs4231_chip->perchip_info.play.samples = value;
return i;
}
static int cs4231_set_input_samples(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int i;
i = cs4231_chip->perchip_info.record.samples;
cs4231_chip->perchip_info.record.samples = value;
return i;
}
static int cs4231_set_input_pause(struct sparcaudio_driver *drv, int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
cs4231_chip->perchip_info.record.pause = value;
if (value)
cs4231_stop_input(drv);
return value;
}
static void cs4231_audio_getdev(struct sparcaudio_driver *drv,
audio_device_t * audinfo)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
strncpy(audinfo->name, "SUNW,CS4231", sizeof(audinfo->name) - 1);
/* versions */
/* a: SPARCstation 4/5 b: Ultra 1/2 (electron) */
/* c: Ultra 1/2 PCI? (positron) d: ppc */
/* e: x86 f: Ultra Enterprise? (tazmo) */
/* g: Ultra 30? (quark) h: Ultra 5/10? (darwin) */
/* apparently Ultra 1, Ultra 2 don't have internal CD input */
if (cs4231_chip->status & CS_STATUS_IS_ULTRA)
strncpy(audinfo->version, "b", sizeof(audinfo->version) - 1);
else
strncpy(audinfo->version, "a", sizeof(audinfo->version) - 1);
strncpy(audinfo->config, "onboard1", sizeof(audinfo->config) - 1);
}
static int cs4231_audio_getdev_sunos(struct sparcaudio_driver *drv)
{
return AUDIO_DEV_CS4231;
}
static void cs4231_loopback(struct sparcaudio_driver *drv, unsigned int value)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
WRITE_IAR(0x0d);
WRITE_IDR(value ? LOOPB_ON : 0);
}
static int cs4231_ioctl(struct inode * inode, struct file * file,
unsigned int cmd, unsigned long arg,
struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
int retval = 0;
switch (cmd) {
case AUDIO_DIAG_LOOPBACK:
cs4231_chip->status |= CS_STATUS_INIT_ON_CLOSE;
cs4231_loopback(drv, (unsigned int)arg);
break;
default:
retval = -EINVAL;
};
return retval;
}
#ifdef EB4231_SUPPORT
/* ebus audio capture interrupt handler. */
void eb4231_cinterrupt(int irq, void *dev_id, struct pt_regs *regs)
{
struct sparcaudio_driver *drv = (struct sparcaudio_driver *) dev_id;
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
u32 dummy;
/* Clear the interrupt. */
dummy = readl(cs4231_chip->eb2c + EBDMA_CSR);
writel(dummy, cs4231_chip->eb2c + EBDMA_CSR);
if ((dummy & EBUS_DCSR_TC) != 0
/*&& (dummy & EBUS_DCSR_A_LOADED) != 0*/) {
cs4231_chip->perchip_info.record.samples +=
cs4231_length_to_samplecount(&(cs4231_chip->perchip_info.record),
cs4231_chip->reclen);
eb4231_recintr(drv);
}
if ((dummy & EBUS_DCSR_A_LOADED) == 0) {
cs4231_chip->perchip_info.record.active = 0;
eb4231_recintr(drv);
eb4231_getsamplecount(drv, cs4231_chip->reclen, 1);
}
}
/* ebus audio play interrupt handler. */
void eb4231_pinterrupt(int irq, void *dev_id, struct pt_regs *regs)
{
struct sparcaudio_driver *drv = (struct sparcaudio_driver *) dev_id;
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
u32 dummy;
/* Clear the interrupt. Bleh, when not using the next-address
* feature, TC can only be cleared by a reset.
*/
dummy = readl(cs4231_chip->eb2p + EBDMA_CSR);
writel(dummy, cs4231_chip->eb2p + EBDMA_CSR);
/* If we get a terminal count and address loaded condition,
* this means the DNAR was copied into DACR.
*/
if((dummy & EBUS_DCSR_TC) != 0
/*&& (dummy & EBUS_DCSR_A_LOADED) != 0*/) {
cs4231_chip->perchip_info.play.samples +=
cs4231_length_to_samplecount(&(cs4231_chip->perchip_info.play),
cs4231_chip->playlen);
eb4231_playintr(drv);
}
if((dummy & EBUS_DCSR_A_LOADED) == 0) {
cs4231_chip->perchip_info.play.active = 0;
eb4231_playintr(drv);
eb4231_getsamplecount(drv, cs4231_chip->playlen, 0);
}
}
#endif
/* Audio interrupt handler. */
void cs4231_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
struct sparcaudio_driver *drv = (struct sparcaudio_driver *) dev_id;
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
__u32 dummy;
dprintk(("in cs4231_interrupt\n"));
/* Clear the interrupt. */
dummy = sbus_readl(cs4231_chip->regs + APCCSR);
sbus_writel(dummy, cs4231_chip->regs + APCCSR);
/* now go through and figure out what gets to claim the interrupt
* if anything since we may be doing shared interrupts
*/
if (dummy & APC_PLAY_INT) {
if (dummy & APC_XINT_PNVA) {
cs4231_chip->perchip_info.play.samples +=
cs4231_length_to_samplecount(&(cs4231_chip->perchip_info.play),
cs4231_chip->playlen);
if (!(dummy & APC_XINT_EMPT))
cs4231_playintr(drv, 1);
}
/* Any other conditions we need worry about? */
}
if (dummy & APC_CAPT_INT) {
if (dummy & APC_XINT_CNVA) {
cs4231_chip->perchip_info.record.samples +=
cs4231_length_to_samplecount(&(cs4231_chip->perchip_info.record),
cs4231_chip->reclen);
cs4231_recintr(drv);
}
/* Any other conditions we need worry about? */
}
if (dummy & APC_XINT_CEMP) {
if (cs4231_chip->perchip_info.record.active == 0) {
/* Fix me */
cs4231_chip->perchip_info.record.active = 0;
cs4231_chip->perchip_info.record.error = 1;
cs4231_recintr(drv);
}
}
if (dummy & APC_XINT_EMPT) {
if (!cs4231_chip->output_next_dma_handle) {
u32 csr = sbus_readl(cs4231_chip->regs + APCCSR);
csr |= APC_PPAUSE;
sbus_writel(csr, cs4231_chip->regs + APCCSR);
cs4231_disable_play(drv);
cs4231_chip->perchip_info.play.error = 1;
}
cs4231_chip->perchip_info.play.active = 0;
cs4231_playintr(drv, 0);
cs4231_getsamplecount(drv, cs4231_chip->playlen, 0);
}
if (dummy & APC_GENL_INT) {
/* If we get here we must be sharing an interrupt, but I haven't code
* to handle this right now.
*/
}
}
static struct sparcaudio_operations cs4231_ops = {
cs4231_open,
cs4231_release,
cs4231_ioctl,
cs4231_start_output,
cs4231_stop_output,
cs4231_start_input,
cs4231_stop_input,
cs4231_audio_getdev,
cs4231_set_output_volume,
cs4231_get_output_volume,
cs4231_set_input_volume,
cs4231_get_input_volume,
cs4231_set_monitor_volume,
cs4231_get_monitor_volume,
cs4231_set_output_balance,
cs4231_get_output_balance,
cs4231_set_input_balance,
cs4231_get_input_balance,
cs4231_set_output_channels,
cs4231_get_output_channels,
cs4231_set_input_channels,
cs4231_get_input_channels,
cs4231_set_output_precision,
cs4231_get_output_precision,
cs4231_set_input_precision,
cs4231_get_input_precision,
cs4231_set_output_port,
cs4231_get_output_port,
cs4231_set_input_port,
cs4231_get_input_port,
cs4231_set_output_encoding,
cs4231_get_output_encoding,
cs4231_set_input_encoding,
cs4231_get_input_encoding,
cs4231_set_output_rate,
cs4231_get_output_rate,
cs4231_set_input_rate,
cs4231_get_input_rate,
cs4231_audio_getdev_sunos,
cs4231_get_output_ports,
cs4231_get_input_ports,
cs4231_output_muted,
cs4231_get_output_muted,
cs4231_set_output_pause,
cs4231_get_output_pause,
cs4231_set_input_pause,
cs4231_get_input_pause,
cs4231_set_output_samples,
cs4231_get_output_samples,
cs4231_set_input_samples,
cs4231_get_input_samples,
cs4231_set_output_error,
cs4231_get_output_error,
cs4231_set_input_error,
cs4231_get_input_error,
cs4231_get_formats,
};
#ifdef EB4231_SUPPORT
static struct sparcaudio_operations eb4231_ops = {
cs4231_open,
cs4231_release,
cs4231_ioctl,
eb4231_start_output,
eb4231_stop_output,
eb4231_start_input,
eb4231_stop_input,
cs4231_audio_getdev,
cs4231_set_output_volume,
cs4231_get_output_volume,
cs4231_set_input_volume,
cs4231_get_input_volume,
cs4231_set_monitor_volume,
cs4231_get_monitor_volume,
cs4231_set_output_balance,
cs4231_get_output_balance,
cs4231_set_input_balance,
cs4231_get_input_balance,
cs4231_set_output_channels,
cs4231_get_output_channels,
cs4231_set_input_channels,
cs4231_get_input_channels,
cs4231_set_output_precision,
cs4231_get_output_precision,
cs4231_set_input_precision,
cs4231_get_input_precision,
cs4231_set_output_port,
cs4231_get_output_port,
cs4231_set_input_port,
cs4231_get_input_port,
cs4231_set_output_encoding,
cs4231_get_output_encoding,
cs4231_set_input_encoding,
cs4231_get_input_encoding,
cs4231_set_output_rate,
cs4231_get_output_rate,
cs4231_set_input_rate,
cs4231_get_input_rate,
cs4231_audio_getdev_sunos,
cs4231_get_output_ports,
cs4231_get_input_ports,
cs4231_output_muted,
cs4231_get_output_muted,
cs4231_set_output_pause,
cs4231_get_output_pause,
cs4231_set_input_pause,
cs4231_get_input_pause,
cs4231_set_output_samples,
eb4231_get_output_samples,
cs4231_set_input_samples,
eb4231_get_input_samples,
cs4231_set_output_error,
cs4231_get_output_error,
cs4231_set_input_error,
cs4231_get_input_error,
cs4231_get_formats,
};
#endif
/* Attach to an cs4231 chip given its PROM node. */
static int cs4231_attach(struct sparcaudio_driver *drv,
struct sbus_dev *sdev)
{
#if defined (LINUX_VERSION_CODE) && LINUX_VERSION_CODE < 0x20100
struct linux_prom_irqs irq;
#endif
struct cs4231_chip *cs4231_chip;
int err;
/* Allocate our private information structure. */
drv->private = kmalloc(sizeof(struct cs4231_chip), GFP_KERNEL);
if (drv->private == NULL)
return -ENOMEM;
/* Point at the information structure and initialize it. */
drv->ops = &cs4231_ops;
cs4231_chip = (struct cs4231_chip *) drv->private;
cs4231_chip->input_ptr = cs4231_chip->output_ptr = NULL;
cs4231_chip->input_size = cs4231_chip->output_size = 0;
cs4231_chip->status = 0;
drv->dev = sdev;
/* Map the registers into memory. */
cs4231_chip->regs_size = sdev->reg_addrs[0].reg_size;
cs4231_chip->regs = sbus_ioremap(&sdev->resource[0], 0,
sdev->reg_addrs[0].reg_size,
"cs4231");
if (!cs4231_chip->regs) {
printk(KERN_ERR "cs4231: could not remap registers\n");
kfree(drv->private);
return -EIO;
}
/* Attach the interrupt handler to the audio interrupt. */
cs4231_chip->irq = sdev->irqs[0];
request_irq(cs4231_chip->irq, cs4231_interrupt, SA_SHIRQ, "cs4231", drv);
enable_irq(cs4231_chip->irq);
cs4231_chip->nirqs = 1;
cs4231_enable_interrupts(drv);
/* Reset the audio chip. */
cs4231_chip_reset(drv);
/* Register ourselves with the midlevel audio driver. */
err = register_sparcaudio_driver(drv, 1);
if (err < 0) {
printk(KERN_ERR "cs4231: unable to register\n");
cs4231_disable_interrupts(drv);
disable_irq(cs4231_chip->irq);
free_irq(cs4231_chip->irq, drv);
sbus_iounmap(cs4231_chip->regs, cs4231_chip->regs_size);
kfree(drv->private);
return -EIO;
}
cs4231_chip->perchip_info.play.active =
cs4231_chip->perchip_info.play.pause = 0;
cs4231_chip->perchip_info.record.active =
cs4231_chip->perchip_info.record.pause = 0;
cs4231_chip->perchip_info.play.avail_ports = (AUDIO_HEADPHONE |
AUDIO_SPEAKER |
AUDIO_LINE_OUT);
cs4231_chip->perchip_info.record.avail_ports = (AUDIO_INTERNAL_CD_IN |
AUDIO_LINE_IN |
AUDIO_MICROPHONE |
AUDIO_ANALOG_LOOPBACK);
/* Announce the hardware to the user. */
printk(KERN_INFO "audio%d: cs4231%c at %lx irq %s\n",
drv->index, (cs4231_chip->status & CS_STATUS_REV_A) ? 'a' : ' ',
cs4231_chip->regs, __irq_itoa(cs4231_chip->irq));
/* Success! */
return 0;
}
#ifdef EB4231_SUPPORT
/* Attach to an cs4231 chip given its PROM node. */
static int eb4231_attach(struct sparcaudio_driver *drv,
struct linux_ebus_device *edev)
{
struct cs4231_chip *cs4231_chip;
int len, err, nregs;
struct linux_prom_registers regs[4];
/* Allocate our private information structure. */
drv->private = kmalloc(sizeof(struct cs4231_chip), GFP_KERNEL);
if (drv->private == NULL)
return -ENOMEM;
/* Point at the information structure and initialize it. */
drv->ops = &eb4231_ops;
cs4231_chip = (struct cs4231_chip *) drv->private;
cs4231_chip->input_ptr = cs4231_chip->output_ptr = NULL;
cs4231_chip->input_size = cs4231_chip->output_size = 0;
cs4231_chip->status = 0;
drv->dev = (struct sbus_dev *)edev->bus->self;
len = prom_getproperty(edev->prom_node, "reg", (void *)regs, sizeof(regs));
if ((len % sizeof(regs[0])) != 0) {
printk("eb4231: Strange reg property size %d\n", len);
return -ENODEV;
}
nregs = len / sizeof(regs[0]);
cs4231_chip->regs = (unsigned long)ioremap(edev->resource[0].start, 0x10);
cs4231_chip->eb2p = (unsigned long)ioremap(edev->resource[1].start, 0x10);
cs4231_chip->eb2c = (unsigned long)ioremap(edev->resource[2].start, 0x10);
cs4231_chip->status |= CS_STATUS_IS_EBUS;
/* Attach the interrupt handler to the audio interrupt. */
cs4231_chip->irq = edev->irqs[0];
cs4231_chip->irq2 = edev->irqs[1];
if(request_irq(cs4231_chip->irq, eb4231_cinterrupt, SA_SHIRQ, "cs4231", drv) ||
request_irq(cs4231_chip->irq2, eb4231_pinterrupt, SA_SHIRQ, "cs4231", drv))
goto bail;
cs4231_chip->nirqs = 2;
cs4231_enable_interrupts(drv);
/* Reset the audio chip. */
cs4231_chip_reset(drv);
/* Register ourselves with the midlevel audio driver. */
err = register_sparcaudio_driver(drv, 1);
if (err < 0) {
bail:
printk(KERN_ERR "cs4231: unable to register\n");
cs4231_disable_interrupts(drv);
disable_irq(cs4231_chip->irq);
free_irq(cs4231_chip->irq, drv);
disable_irq(cs4231_chip->irq2);
free_irq(cs4231_chip->irq2, drv);
kfree(drv->private);
return -EIO;
}
cs4231_chip->perchip_info.play.active =
cs4231_chip->perchip_info.play.pause = 0;
cs4231_chip->perchip_info.record.active =
cs4231_chip->perchip_info.record.pause = 0;
cs4231_chip->perchip_info.play.avail_ports = (AUDIO_HEADPHONE |
AUDIO_SPEAKER |
AUDIO_LINE_OUT);
cs4231_chip->perchip_info.record.avail_ports = (AUDIO_INTERNAL_CD_IN |
AUDIO_LINE_IN |
AUDIO_MICROPHONE |
AUDIO_ANALOG_LOOPBACK);
/* Announce the hardware to the user. */
printk(KERN_INFO "audio%d: cs4231%c(eb2) at %lx irq %s\n",
drv->index, (cs4231_chip->status & CS_STATUS_REV_A) ? 'a' : ' ',
cs4231_chip->regs, __irq_itoa(cs4231_chip->irq));
/* Success! */
return 0;
}
#endif
/* Probe for the cs4231 chip and then attach the driver. */
#ifdef MODULE
int init_module(void)
#else
int __init cs4231_init(void)
#endif
{
struct sbus_bus *sbus;
struct sbus_dev *sdev;
#ifdef EB4231_SUPPORT
struct linux_ebus *ebus;
struct linux_ebus_device *edev;
#endif
num_drivers = 0;
/* Probe each SBUS for cs4231 chips. */
for_all_sbusdev(sdev, sbus) {
if (!strcmp(sdev->prom_name, "SUNW,CS4231")) {
/* Don't go over the max number of drivers. */
if (num_drivers >= MAX_DRIVERS)
continue;
if (cs4231_attach(&drivers[num_drivers], sdev) == 0)
num_drivers++;
}
}
#ifdef EB4231_SUPPORT
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
if (!strcmp(edev->prom_name, "SUNW,CS4231")) {
/* Don't go over the max number of drivers. */
if (num_drivers >= MAX_DRIVERS)
continue;
if (eb4231_attach(&drivers[num_drivers], edev) == 0)
num_drivers++;
}
}
}
#endif
/* Only return success if we found some cs4231 chips. */
return (num_drivers > 0) ? 0 : -EIO;
}
#ifdef MODULE
/* Detach from an cs4231 chip given the device structure. */
static void cs4231_detach(struct sparcaudio_driver *drv)
{
struct cs4231_chip *cs4231_chip = (struct cs4231_chip *) drv->private;
cs4231_disable_interrupts(drv);
unregister_sparcaudio_driver(drv, 1);
disable_irq(cs4231_chip->irq);
free_irq(cs4231_chip->irq, drv);
if (!(cs4231_chip->status & CS_STATUS_IS_EBUS)) {
sbus_iounmap(cs4231_chip->regs, cs4231_chip->regs_size);
} else {
#ifdef EB4231_SUPPORT
iounmap(cs4231_chip->regs);
iounmap(cs4231_chip->eb2p);
iounmap(cs4231_chip->eb2c);
disable_irq(cs4231_chip->irq2);
free_irq(cs4231_chip->irq2, drv);
#endif
}
kfree(drv->private);
}
void cleanup_module(void)
{
register int i;
for (i = 0; i < num_drivers; i++) {
cs4231_detach(&drivers[i]);
num_drivers--;
}
}
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-indent-level: 4
* c-brace-imaginary-offset: 0
* c-brace-offset: -4
* c-argdecl-indent: 4
* c-label-offset: -4
* c-continued-statement-offset: 4
* c-continued-brace-offset: 0
* indent-tabs-mode: nil
* tab-width: 8
* End:
*/
