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android_kernel_motorola_sm6225/sound/oss/es1371.c
John Anthony Kazos Jr 7bb2acb76e sound: convert "sound" subdirectory to UTF-8 
Convert the "sound" subdirectory to UTF-8.

Signed-off-by: John Anthony Kazos Jr. <jakj@j-a-k-j.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-05-09 08:58:22 +02:00

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/*****************************************************************************/
/*
* es1371.c -- Creative Ensoniq ES1371.
*
* Copyright (C) 1998-2001, 2003 Thomas Sailer (t.sailer@alumni.ethz.ch)
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Special thanks to Ensoniq
*
* Supported devices:
* /dev/dsp standard /dev/dsp device, (mostly) OSS compatible
* /dev/mixer standard /dev/mixer device, (mostly) OSS compatible
* /dev/dsp1 additional DAC, like /dev/dsp, but outputs to mixer "SYNTH" setting
* /dev/midi simple MIDI UART interface, no ioctl
*
* NOTE: the card does not have any FM/Wavetable synthesizer, it is supposed
* to be done in software. That is what /dev/dac is for. By now (Q2 1998)
* there are several MIDI to PCM (WAV) packages, one of them is timidity.
*
* Revision history
* 04.06.1998 0.1 Initial release
* Mixer stuff should be overhauled; especially optional AC97 mixer bits
* should be detected. This results in strange behaviour of some mixer
* settings, like master volume and mic.
* 08.06.1998 0.2 First release using Alan Cox' soundcore instead of miscdevice
* 03.08.1998 0.3 Do not include modversions.h
* Now mixer behaviour can basically be selected between
* "OSS documented" and "OSS actual" behaviour
* 31.08.1998 0.4 Fix realplayer problems - dac.count issues
* 27.10.1998 0.5 Fix joystick support
* -- Oliver Neukum (c188@org.chemie.uni-muenchen.de)
* 10.12.1998 0.6 Fix drain_dac trying to wait on not yet initialized DMA
* 23.12.1998 0.7 Fix a few f_file & FMODE_ bugs
* Don't wake up app until there are fragsize bytes to read/write
* 06.01.1999 0.8 remove the silly SA_INTERRUPT flag.
* hopefully killed the egcs section type conflict
* 12.03.1999 0.9 cinfo.blocks should be reset after GETxPTR ioctl.
* reported by Johan Maes <joma@telindus.be>
* 22.03.1999 0.10 return EAGAIN instead of EBUSY when O_NONBLOCK
* read/write cannot be executed
* 07.04.1999 0.11 implemented the following ioctl's: SOUND_PCM_READ_RATE,
* SOUND_PCM_READ_CHANNELS, SOUND_PCM_READ_BITS;
* Alpha fixes reported by Peter Jones <pjones@redhat.com>
* Another Alpha fix (wait_src_ready in init routine)
* reported by "Ivan N. Kokshaysky" <ink@jurassic.park.msu.ru>
* Note: joystick address handling might still be wrong on archs
* other than i386
* 15.06.1999 0.12 Fix bad allocation bug.
* Thanks to Deti Fliegl <fliegl@in.tum.de>
* 28.06.1999 0.13 Add pci_set_master
* 03.08.1999 0.14 adapt to Linus' new __setup/__initcall
* added kernel command line option "es1371=joystickaddr"
* removed CONFIG_SOUND_ES1371_JOYPORT_BOOT kludge
* 10.08.1999 0.15 (Re)added S/PDIF module option for cards revision >= 4.
* Initial version by Dave Platt <dplatt@snulbug.mtview.ca.us>.
* module_init/__setup fixes
* 08.16.1999 0.16 Joe Cotellese <joec@ensoniq.com>
* Added detection for ES1371 revision ID so that we can
* detect the ES1373 and later parts.
* added AC97 #defines for readability
* added a /proc file system for dumping hardware state
* updated SRC and CODEC w/r functions to accommodate bugs
* in some versions of the ES137x chips.
* 31.08.1999 0.17 add spin_lock_init
* replaced current->state = x with set_current_state(x)
* 03.09.1999 0.18 change read semantics for MIDI to match
* OSS more closely; remove possible wakeup race
* 21.10.1999 0.19 Round sampling rates, requested by
* Kasamatsu Kenichi <t29w0267@ip.media.kyoto-u.ac.jp>
* 27.10.1999 0.20 Added SigmaTel 3D enhancement string
* Codec ID printing changes
* 28.10.1999 0.21 More waitqueue races fixed
* Joe Cotellese <joec@ensoniq.com>
* Changed PCI detection routine so we can more easily
* detect ES137x chip and derivatives.
* 05.01.2000 0.22 Should now work with rev7 boards; patch by
* Eric Lemar, elemar@cs.washington.edu
* 08.01.2000 0.23 Prevent some ioctl's from returning bad count values on underrun/overrun;
* Tim Janik's BSE (Bedevilled Sound Engine) found this
* 07.02.2000 0.24 Use pci_alloc_consistent and pci_register_driver
* 07.02.2000 0.25 Use ac97_codec
* 01.03.2000 0.26 SPDIF patch by Mikael Bouillot <mikael.bouillot@bigfoot.com>
* Use pci_module_init
* 21.11.2000 0.27 Initialize dma buffers in poll, otherwise poll may return a bogus mask
* 12.12.2000 0.28 More dma buffer initializations, patch from
* Tjeerd Mulder <tjeerd.mulder@fujitsu-siemens.com>
* 05.01.2001 0.29 Hopefully updates will not be required anymore when Creative bumps
* the CT5880 revision.
* suggested by Stephan Müller <smueller@chronox.de>
* 31.01.2001 0.30 Register/Unregister gameport
* Fix SETTRIGGER non OSS API conformity
* 14.07.2001 0.31 Add list of laptops needing amplifier control
* 03.01.2003 0.32 open_mode fixes from Georg Acher <acher@in.tum.de>
*/
/*****************************************************************************/
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/ioport.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/sound.h>
#include <linux/slab.h>
#include <linux/soundcard.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/poll.h>
#include <linux/bitops.h>
#include <linux/proc_fs.h>
#include <linux/spinlock.h>
#include <linux/smp_lock.h>
#include <linux/ac97_codec.h>
#include <linux/gameport.h>
#include <linux/wait.h>
#include <linux/dma-mapping.h>
#include <linux/mutex.h>
#include <linux/mm.h>
#include <linux/kernel.h>
#include <asm/io.h>
#include <asm/page.h>
#include <asm/uaccess.h>
#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
#define SUPPORT_JOYSTICK
#endif
/* --------------------------------------------------------------------- */
#undef OSS_DOCUMENTED_MIXER_SEMANTICS
#define ES1371_DEBUG
#define DBG(x) {}
/*#define DBG(x) {x}*/
/* --------------------------------------------------------------------- */
#ifndef PCI_VENDOR_ID_ENSONIQ
#define PCI_VENDOR_ID_ENSONIQ 0x1274
#endif
#ifndef PCI_VENDOR_ID_ECTIVA
#define PCI_VENDOR_ID_ECTIVA 0x1102
#endif
#ifndef PCI_DEVICE_ID_ENSONIQ_ES1371
#define PCI_DEVICE_ID_ENSONIQ_ES1371 0x1371
#endif
#ifndef PCI_DEVICE_ID_ENSONIQ_CT5880
#define PCI_DEVICE_ID_ENSONIQ_CT5880 0x5880
#endif
#ifndef PCI_DEVICE_ID_ECTIVA_EV1938
#define PCI_DEVICE_ID_ECTIVA_EV1938 0x8938
#endif
/* ES1371 chip ID */
/* This is a little confusing because all ES1371 compatible chips have the
same DEVICE_ID, the only thing differentiating them is the REV_ID field.
This is only significant if you want to enable features on the later parts.
Yes, I know it's stupid and why didn't we use the sub IDs?
*/
#define ES1371REV_ES1373_A 0x04
#define ES1371REV_ES1373_B 0x06
#define ES1371REV_CT5880_A 0x07
#define CT5880REV_CT5880_C 0x02
#define CT5880REV_CT5880_D 0x03
#define ES1371REV_ES1371_B 0x09
#define EV1938REV_EV1938_A 0x00
#define ES1371REV_ES1373_8 0x08
#define ES1371_MAGIC ((PCI_VENDOR_ID_ENSONIQ<<16)|PCI_DEVICE_ID_ENSONIQ_ES1371)
#define ES1371_EXTENT 0x40
#define JOY_EXTENT 8
#define ES1371_REG_CONTROL 0x00
#define ES1371_REG_STATUS 0x04 /* on the 5880 it is control/status */
#define ES1371_REG_UART_DATA 0x08
#define ES1371_REG_UART_STATUS 0x09
#define ES1371_REG_UART_CONTROL 0x09
#define ES1371_REG_UART_TEST 0x0a
#define ES1371_REG_MEMPAGE 0x0c
#define ES1371_REG_SRCONV 0x10
#define ES1371_REG_CODEC 0x14
#define ES1371_REG_LEGACY 0x18
#define ES1371_REG_SERIAL_CONTROL 0x20
#define ES1371_REG_DAC1_SCOUNT 0x24
#define ES1371_REG_DAC2_SCOUNT 0x28
#define ES1371_REG_ADC_SCOUNT 0x2c
#define ES1371_REG_DAC1_FRAMEADR 0xc30
#define ES1371_REG_DAC1_FRAMECNT 0xc34
#define ES1371_REG_DAC2_FRAMEADR 0xc38
#define ES1371_REG_DAC2_FRAMECNT 0xc3c
#define ES1371_REG_ADC_FRAMEADR 0xd30
#define ES1371_REG_ADC_FRAMECNT 0xd34
#define ES1371_FMT_U8_MONO 0
#define ES1371_FMT_U8_STEREO 1
#define ES1371_FMT_S16_MONO 2
#define ES1371_FMT_S16_STEREO 3
#define ES1371_FMT_STEREO 1
#define ES1371_FMT_S16 2
#define ES1371_FMT_MASK 3
static const unsigned sample_size[] = { 1, 2, 2, 4 };
static const unsigned sample_shift[] = { 0, 1, 1, 2 };
#define CTRL_RECEN_B 0x08000000 /* 1 = don't mix analog in to digital out */
#define CTRL_SPDIFEN_B 0x04000000
#define CTRL_JOY_SHIFT 24
#define CTRL_JOY_MASK 3
#define CTRL_JOY_200 0x00000000 /* joystick base address */
#define CTRL_JOY_208 0x01000000
#define CTRL_JOY_210 0x02000000
#define CTRL_JOY_218 0x03000000
#define CTRL_GPIO_IN0 0x00100000 /* general purpose inputs/outputs */
#define CTRL_GPIO_IN1 0x00200000
#define CTRL_GPIO_IN2 0x00400000
#define CTRL_GPIO_IN3 0x00800000
#define CTRL_GPIO_OUT0 0x00010000
#define CTRL_GPIO_OUT1 0x00020000
#define CTRL_GPIO_OUT2 0x00040000
#define CTRL_GPIO_OUT3 0x00080000
#define CTRL_MSFMTSEL 0x00008000 /* MPEG serial data fmt: 0 = Sony, 1 = I2S */
#define CTRL_SYNCRES 0x00004000 /* AC97 warm reset */
#define CTRL_ADCSTOP 0x00002000 /* stop ADC transfers */
#define CTRL_PWR_INTRM 0x00001000 /* 1 = power level ints enabled */
#define CTRL_M_CB 0x00000800 /* recording source: 0 = ADC, 1 = MPEG */
#define CTRL_CCB_INTRM 0x00000400 /* 1 = CCB "voice" ints enabled */
#define CTRL_PDLEV0 0x00000000 /* power down level */
#define CTRL_PDLEV1 0x00000100
#define CTRL_PDLEV2 0x00000200
#define CTRL_PDLEV3 0x00000300
#define CTRL_BREQ 0x00000080 /* 1 = test mode (internal mem test) */
#define CTRL_DAC1_EN 0x00000040 /* enable DAC1 */
#define CTRL_DAC2_EN 0x00000020 /* enable DAC2 */
#define CTRL_ADC_EN 0x00000010 /* enable ADC */
#define CTRL_UART_EN 0x00000008 /* enable MIDI uart */
#define CTRL_JYSTK_EN 0x00000004 /* enable Joystick port */
#define CTRL_XTALCLKDIS 0x00000002 /* 1 = disable crystal clock input */
#define CTRL_PCICLKDIS 0x00000001 /* 1 = disable PCI clock distribution */
#define STAT_INTR 0x80000000 /* wired or of all interrupt bits */
#define CSTAT_5880_AC97_RST 0x20000000 /* CT5880 Reset bit */
#define STAT_EN_SPDIF 0x00040000 /* enable S/PDIF circuitry */
#define STAT_TS_SPDIF 0x00020000 /* test S/PDIF circuitry */
#define STAT_TESTMODE 0x00010000 /* test ASIC */
#define STAT_SYNC_ERR 0x00000100 /* 1 = codec sync error */
#define STAT_VC 0x000000c0 /* CCB int source, 0=DAC1, 1=DAC2, 2=ADC, 3=undef */
#define STAT_SH_VC 6
#define STAT_MPWR 0x00000020 /* power level interrupt */
#define STAT_MCCB 0x00000010 /* CCB int pending */
#define STAT_UART 0x00000008 /* UART int pending */
#define STAT_DAC1 0x00000004 /* DAC1 int pending */
#define STAT_DAC2 0x00000002 /* DAC2 int pending */
#define STAT_ADC 0x00000001 /* ADC int pending */
#define USTAT_RXINT 0x80 /* UART rx int pending */
#define USTAT_TXINT 0x04 /* UART tx int pending */
#define USTAT_TXRDY 0x02 /* UART tx ready */
#define USTAT_RXRDY 0x01 /* UART rx ready */
#define UCTRL_RXINTEN 0x80 /* 1 = enable RX ints */
#define UCTRL_TXINTEN 0x60 /* TX int enable field mask */
#define UCTRL_ENA_TXINT 0x20 /* enable TX int */
#define UCTRL_CNTRL 0x03 /* control field */
#define UCTRL_CNTRL_SWR 0x03 /* software reset command */
/* sample rate converter */
#define SRC_OKSTATE 1
#define SRC_RAMADDR_MASK 0xfe000000
#define SRC_RAMADDR_SHIFT 25
#define SRC_DAC1FREEZE (1UL << 21)
#define SRC_DAC2FREEZE (1UL << 20)
#define SRC_ADCFREEZE (1UL << 19)
#define SRC_WE 0x01000000 /* read/write control for SRC RAM */
#define SRC_BUSY 0x00800000 /* SRC busy */
#define SRC_DIS 0x00400000 /* 1 = disable SRC */
#define SRC_DDAC1 0x00200000 /* 1 = disable accum update for DAC1 */
#define SRC_DDAC2 0x00100000 /* 1 = disable accum update for DAC2 */
#define SRC_DADC 0x00080000 /* 1 = disable accum update for ADC2 */
#define SRC_CTLMASK 0x00780000
#define SRC_RAMDATA_MASK 0x0000ffff
#define SRC_RAMDATA_SHIFT 0
#define SRCREG_ADC 0x78
#define SRCREG_DAC1 0x70
#define SRCREG_DAC2 0x74
#define SRCREG_VOL_ADC 0x6c
#define SRCREG_VOL_DAC1 0x7c
#define SRCREG_VOL_DAC2 0x7e
#define SRCREG_TRUNC_N 0x00
#define SRCREG_INT_REGS 0x01
#define SRCREG_ACCUM_FRAC 0x02
#define SRCREG_VFREQ_FRAC 0x03
#define CODEC_PIRD 0x00800000 /* 0 = write AC97 register */
#define CODEC_PIADD_MASK 0x007f0000
#define CODEC_PIADD_SHIFT 16
#define CODEC_PIDAT_MASK 0x0000ffff
#define CODEC_PIDAT_SHIFT 0
#define CODEC_RDY 0x80000000 /* AC97 read data valid */
#define CODEC_WIP 0x40000000 /* AC97 write in progress */
#define CODEC_PORD 0x00800000 /* 0 = write AC97 register */
#define CODEC_POADD_MASK 0x007f0000
#define CODEC_POADD_SHIFT 16
#define CODEC_PODAT_MASK 0x0000ffff
#define CODEC_PODAT_SHIFT 0
#define LEGACY_JFAST 0x80000000 /* fast joystick timing */
#define LEGACY_FIRQ 0x01000000 /* force IRQ */
#define SCTRL_DACTEST 0x00400000 /* 1 = DAC test, test vector generation purposes */
#define SCTRL_P2ENDINC 0x00380000 /* */
#define SCTRL_SH_P2ENDINC 19
#define SCTRL_P2STINC 0x00070000 /* */
#define SCTRL_SH_P2STINC 16
#define SCTRL_R1LOOPSEL 0x00008000 /* 0 = loop mode */
#define SCTRL_P2LOOPSEL 0x00004000 /* 0 = loop mode */
#define SCTRL_P1LOOPSEL 0x00002000 /* 0 = loop mode */
#define SCTRL_P2PAUSE 0x00001000 /* 1 = pause mode */
#define SCTRL_P1PAUSE 0x00000800 /* 1 = pause mode */
#define SCTRL_R1INTEN 0x00000400 /* enable interrupt */
#define SCTRL_P2INTEN 0x00000200 /* enable interrupt */
#define SCTRL_P1INTEN 0x00000100 /* enable interrupt */
#define SCTRL_P1SCTRLD 0x00000080 /* reload sample count register for DAC1 */
#define SCTRL_P2DACSEN 0x00000040 /* 1 = DAC2 play back last sample when disabled */
#define SCTRL_R1SEB 0x00000020 /* 1 = 16bit */
#define SCTRL_R1SMB 0x00000010 /* 1 = stereo */
#define SCTRL_R1FMT 0x00000030 /* format mask */
#define SCTRL_SH_R1FMT 4
#define SCTRL_P2SEB 0x00000008 /* 1 = 16bit */
#define SCTRL_P2SMB 0x00000004 /* 1 = stereo */
#define SCTRL_P2FMT 0x0000000c /* format mask */
#define SCTRL_SH_P2FMT 2
#define SCTRL_P1SEB 0x00000002 /* 1 = 16bit */
#define SCTRL_P1SMB 0x00000001 /* 1 = stereo */
#define SCTRL_P1FMT 0x00000003 /* format mask */
#define SCTRL_SH_P1FMT 0
/* misc stuff */
#define POLL_COUNT 0x1000
#define FMODE_DAC 4 /* slight misuse of mode_t */
/* MIDI buffer sizes */
#define MIDIINBUF 256
#define MIDIOUTBUF 256
#define FMODE_MIDI_SHIFT 3
#define FMODE_MIDI_READ (FMODE_READ << FMODE_MIDI_SHIFT)
#define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT)
#define ES1371_MODULE_NAME "es1371"
#define PFX ES1371_MODULE_NAME ": "
/* --------------------------------------------------------------------- */
struct es1371_state {
/* magic */
unsigned int magic;
/* list of es1371 devices */
struct list_head devs;
/* the corresponding pci_dev structure */
struct pci_dev *dev;
/* soundcore stuff */
int dev_audio;
int dev_dac;
int dev_midi;
/* hardware resources */
unsigned long io; /* long for SPARC */
unsigned int irq;
/* PCI ID's */
u16 vendor;
u16 device;
u8 rev; /* the chip revision */
/* options */
int spdif_volume; /* S/PDIF output is enabled if != -1 */
#ifdef ES1371_DEBUG
/* debug /proc entry */
struct proc_dir_entry *ps;
#endif /* ES1371_DEBUG */
struct ac97_codec *codec;
/* wave stuff */
unsigned ctrl;
unsigned sctrl;
unsigned dac1rate, dac2rate, adcrate;
spinlock_t lock;
struct mutex open_mutex;
mode_t open_mode;
wait_queue_head_t open_wait;
struct dmabuf {
void *rawbuf;
dma_addr_t dmaaddr;
unsigned buforder;
unsigned numfrag;
unsigned fragshift;
unsigned hwptr, swptr;
unsigned total_bytes;
int count;
unsigned error; /* over/underrun */
wait_queue_head_t wait;
/* redundant, but makes calculations easier */
unsigned fragsize;
unsigned dmasize;
unsigned fragsamples;
/* OSS stuff */
unsigned mapped:1;
unsigned ready:1;
unsigned endcleared:1;
unsigned enabled:1;
unsigned ossfragshift;
int ossmaxfrags;
unsigned subdivision;
} dma_dac1, dma_dac2, dma_adc;
/* midi stuff */
struct {
unsigned ird, iwr, icnt;
unsigned ord, owr, ocnt;
wait_queue_head_t iwait;
wait_queue_head_t owait;
unsigned char ibuf[MIDIINBUF];
unsigned char obuf[MIDIOUTBUF];
} midi;
#ifdef SUPPORT_JOYSTICK
struct gameport *gameport;
#endif
struct mutex sem;
};
/* --------------------------------------------------------------------- */
static LIST_HEAD(devs);
/* --------------------------------------------------------------------- */
static inline unsigned ld2(unsigned int x)
{
unsigned r = 0;
if (x >= 0x10000) {
x >>= 16;
r += 16;
}
if (x >= 0x100) {
x >>= 8;
r += 8;
}
if (x >= 0x10) {
x >>= 4;
r += 4;
}
if (x >= 4) {
x >>= 2;
r += 2;
}
if (x >= 2)
r++;
return r;
}
/* --------------------------------------------------------------------- */
static unsigned wait_src_ready(struct es1371_state *s)
{
unsigned int t, r;
for (t = 0; t < POLL_COUNT; t++) {
if (!((r = inl(s->io + ES1371_REG_SRCONV)) & SRC_BUSY))
return r;
udelay(1);
}
printk(KERN_DEBUG PFX "sample rate converter timeout r = 0x%08x\n", r);
return r;
}
static unsigned src_read(struct es1371_state *s, unsigned reg)
{
unsigned int temp,i,orig;
/* wait for ready */
temp = wait_src_ready (s);
/* we can only access the SRC at certain times, make sure
we're allowed to before we read */
orig = temp;
/* expose the SRC state bits */
outl ( (temp & SRC_CTLMASK) | (reg << SRC_RAMADDR_SHIFT) | 0x10000UL,
s->io + ES1371_REG_SRCONV);
/* now, wait for busy and the correct time to read */
temp = wait_src_ready (s);
if ( (temp & 0x00870000UL ) != ( SRC_OKSTATE << 16 )){
/* wait for the right state */
for (i=0; i<POLL_COUNT; i++){
temp = inl (s->io + ES1371_REG_SRCONV);
if ( (temp & 0x00870000UL ) == ( SRC_OKSTATE << 16 ))
break;
}
}
/* hide the state bits */
outl ((orig & SRC_CTLMASK) | (reg << SRC_RAMADDR_SHIFT), s->io + ES1371_REG_SRCONV);
return temp;
}
static void src_write(struct es1371_state *s, unsigned reg, unsigned data)
{
unsigned int r;
r = wait_src_ready(s) & (SRC_DIS | SRC_DDAC1 | SRC_DDAC2 | SRC_DADC);
r |= (reg << SRC_RAMADDR_SHIFT) & SRC_RAMADDR_MASK;
r |= (data << SRC_RAMDATA_SHIFT) & SRC_RAMDATA_MASK;
outl(r | SRC_WE, s->io + ES1371_REG_SRCONV);
}
/* --------------------------------------------------------------------- */
/* most of the following here is black magic */
static void set_adc_rate(struct es1371_state *s, unsigned rate)
{
unsigned long flags;
unsigned int n, truncm, freq;
if (rate > 48000)
rate = 48000;
if (rate < 4000)
rate = 4000;
n = rate / 3000;
if ((1 << n) & ((1 << 15) | (1 << 13) | (1 << 11) | (1 << 9)))
n--;
truncm = (21 * n - 1) | 1;
freq = ((48000UL << 15) / rate) * n;
s->adcrate = (48000UL << 15) / (freq / n);
spin_lock_irqsave(&s->lock, flags);
if (rate >= 24000) {
if (truncm > 239)
truncm = 239;
src_write(s, SRCREG_ADC+SRCREG_TRUNC_N,
(((239 - truncm) >> 1) << 9) | (n << 4));
} else {
if (truncm > 119)
truncm = 119;
src_write(s, SRCREG_ADC+SRCREG_TRUNC_N,
0x8000 | (((119 - truncm) >> 1) << 9) | (n << 4));
}
src_write(s, SRCREG_ADC+SRCREG_INT_REGS,
(src_read(s, SRCREG_ADC+SRCREG_INT_REGS) & 0x00ff) |
((freq >> 5) & 0xfc00));
src_write(s, SRCREG_ADC+SRCREG_VFREQ_FRAC, freq & 0x7fff);
src_write(s, SRCREG_VOL_ADC, n << 8);
src_write(s, SRCREG_VOL_ADC+1, n << 8);
spin_unlock_irqrestore(&s->lock, flags);
}
static void set_dac1_rate(struct es1371_state *s, unsigned rate)
{
unsigned long flags;
unsigned int freq, r;
if (rate > 48000)
rate = 48000;
if (rate < 4000)
rate = 4000;
freq = ((rate << 15) + 1500) / 3000;
s->dac1rate = (freq * 3000 + 16384) >> 15;
spin_lock_irqsave(&s->lock, flags);
r = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC2 | SRC_DADC)) | SRC_DDAC1;
outl(r, s->io + ES1371_REG_SRCONV);
src_write(s, SRCREG_DAC1+SRCREG_INT_REGS,
(src_read(s, SRCREG_DAC1+SRCREG_INT_REGS) & 0x00ff) |
((freq >> 5) & 0xfc00));
src_write(s, SRCREG_DAC1+SRCREG_VFREQ_FRAC, freq & 0x7fff);
r = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC2 | SRC_DADC));
outl(r, s->io + ES1371_REG_SRCONV);
spin_unlock_irqrestore(&s->lock, flags);
}
static void set_dac2_rate(struct es1371_state *s, unsigned rate)
{
unsigned long flags;
unsigned int freq, r;
if (rate > 48000)
rate = 48000;
if (rate < 4000)
rate = 4000;
freq = ((rate << 15) + 1500) / 3000;
s->dac2rate = (freq * 3000 + 16384) >> 15;
spin_lock_irqsave(&s->lock, flags);
r = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC1 | SRC_DADC)) | SRC_DDAC2;
outl(r, s->io + ES1371_REG_SRCONV);
src_write(s, SRCREG_DAC2+SRCREG_INT_REGS,
(src_read(s, SRCREG_DAC2+SRCREG_INT_REGS) & 0x00ff) |
((freq >> 5) & 0xfc00));
src_write(s, SRCREG_DAC2+SRCREG_VFREQ_FRAC, freq & 0x7fff);
r = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC1 | SRC_DADC));
outl(r, s->io + ES1371_REG_SRCONV);
spin_unlock_irqrestore(&s->lock, flags);
}
/* --------------------------------------------------------------------- */
static void __devinit src_init(struct es1371_state *s)
{
unsigned int i;
/* before we enable or disable the SRC we need
to wait for it to become ready */
wait_src_ready(s);
outl(SRC_DIS, s->io + ES1371_REG_SRCONV);
for (i = 0; i < 0x80; i++)
src_write(s, i, 0);
src_write(s, SRCREG_DAC1+SRCREG_TRUNC_N, 16 << 4);
src_write(s, SRCREG_DAC1+SRCREG_INT_REGS, 16 << 10);
src_write(s, SRCREG_DAC2+SRCREG_TRUNC_N, 16 << 4);
src_write(s, SRCREG_DAC2+SRCREG_INT_REGS, 16 << 10);
src_write(s, SRCREG_VOL_ADC, 1 << 12);
src_write(s, SRCREG_VOL_ADC+1, 1 << 12);
src_write(s, SRCREG_VOL_DAC1, 1 << 12);
src_write(s, SRCREG_VOL_DAC1+1, 1 << 12);
src_write(s, SRCREG_VOL_DAC2, 1 << 12);
src_write(s, SRCREG_VOL_DAC2+1, 1 << 12);
set_adc_rate(s, 22050);
set_dac1_rate(s, 22050);
set_dac2_rate(s, 22050);
/* WARNING:
* enabling the sample rate converter without properly programming
* its parameters causes the chip to lock up (the SRC busy bit will
* be stuck high, and I've found no way to rectify this other than
* power cycle)
*/
wait_src_ready(s);
outl(0, s->io+ES1371_REG_SRCONV);
}
/* --------------------------------------------------------------------- */
static void wrcodec(struct ac97_codec *codec, u8 addr, u16 data)
{
struct es1371_state *s = (struct es1371_state *)codec->private_data;
unsigned long flags;
unsigned t, x;
spin_lock_irqsave(&s->lock, flags);
for (t = 0; t < POLL_COUNT; t++)
if (!(inl(s->io+ES1371_REG_CODEC) & CODEC_WIP))
break;
/* save the current state for later */
x = wait_src_ready(s);
/* enable SRC state data in SRC mux */
outl((x & (SRC_DIS | SRC_DDAC1 | SRC_DDAC2 | SRC_DADC)) | 0x00010000,
s->io+ES1371_REG_SRCONV);
/* wait for not busy (state 0) first to avoid
transition states */
for (t=0; t<POLL_COUNT; t++){
if((inl(s->io+ES1371_REG_SRCONV) & 0x00870000) ==0 )
break;
udelay(1);
}
/* wait for a SAFE time to write addr/data and then do it, dammit */
for (t=0; t<POLL_COUNT; t++){
if((inl(s->io+ES1371_REG_SRCONV) & 0x00870000) ==0x00010000)
break;
udelay(1);
}
outl(((addr << CODEC_POADD_SHIFT) & CODEC_POADD_MASK) |
((data << CODEC_PODAT_SHIFT) & CODEC_PODAT_MASK), s->io+ES1371_REG_CODEC);
/* restore SRC reg */
wait_src_ready(s);
outl(x, s->io+ES1371_REG_SRCONV);
spin_unlock_irqrestore(&s->lock, flags);
}
static u16 rdcodec(struct ac97_codec *codec, u8 addr)
{
struct es1371_state *s = (struct es1371_state *)codec->private_data;
unsigned long flags;
unsigned t, x;
spin_lock_irqsave(&s->lock, flags);
/* wait for WIP to go away */
for (t = 0; t < 0x1000; t++)
if (!(inl(s->io+ES1371_REG_CODEC) & CODEC_WIP))
break;
/* save the current state for later */
x = (wait_src_ready(s) & (SRC_DIS | SRC_DDAC1 | SRC_DDAC2 | SRC_DADC));
/* enable SRC state data in SRC mux */
outl( x | 0x00010000,
s->io+ES1371_REG_SRCONV);
/* wait for not busy (state 0) first to avoid
transition states */
for (t=0; t<POLL_COUNT; t++){
if((inl(s->io+ES1371_REG_SRCONV) & 0x00870000) ==0 )
break;
udelay(1);
}
/* wait for a SAFE time to write addr/data and then do it, dammit */
for (t=0; t<POLL_COUNT; t++){
if((inl(s->io+ES1371_REG_SRCONV) & 0x00870000) ==0x00010000)
break;
udelay(1);
}
outl(((addr << CODEC_POADD_SHIFT) & CODEC_POADD_MASK) | CODEC_PORD, s->io+ES1371_REG_CODEC);
/* restore SRC reg */
wait_src_ready(s);
outl(x, s->io+ES1371_REG_SRCONV);
/* wait for WIP again */
for (t = 0; t < 0x1000; t++)
if (!(inl(s->io+ES1371_REG_CODEC) & CODEC_WIP))
break;
/* now wait for the stinkin' data (RDY) */
for (t = 0; t < POLL_COUNT; t++)
if ((x = inl(s->io+ES1371_REG_CODEC)) & CODEC_RDY)
break;
spin_unlock_irqrestore(&s->lock, flags);
return ((x & CODEC_PIDAT_MASK) >> CODEC_PIDAT_SHIFT);
}
/* --------------------------------------------------------------------- */
static inline void stop_adc(struct es1371_state *s)
{
unsigned long flags;
spin_lock_irqsave(&s->lock, flags);
s->ctrl &= ~CTRL_ADC_EN;
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
}
static inline void stop_dac1(struct es1371_state *s)
{
unsigned long flags;
spin_lock_irqsave(&s->lock, flags);
s->ctrl &= ~CTRL_DAC1_EN;
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
}
static inline void stop_dac2(struct es1371_state *s)
{
unsigned long flags;
spin_lock_irqsave(&s->lock, flags);
s->ctrl &= ~CTRL_DAC2_EN;
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
}
static void start_dac1(struct es1371_state *s)
{
unsigned long flags;
unsigned fragremain, fshift;
spin_lock_irqsave(&s->lock, flags);
if (!(s->ctrl & CTRL_DAC1_EN) && (s->dma_dac1.mapped || s->dma_dac1.count > 0)
&& s->dma_dac1.ready) {
s->ctrl |= CTRL_DAC1_EN;
s->sctrl = (s->sctrl & ~(SCTRL_P1LOOPSEL | SCTRL_P1PAUSE | SCTRL_P1SCTRLD)) | SCTRL_P1INTEN;
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
fragremain = ((- s->dma_dac1.hwptr) & (s->dma_dac1.fragsize-1));
fshift = sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
if (fragremain < 2*fshift)
fragremain = s->dma_dac1.fragsize;
outl((fragremain >> fshift) - 1, s->io+ES1371_REG_DAC1_SCOUNT);
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
outl((s->dma_dac1.fragsize >> fshift) - 1, s->io+ES1371_REG_DAC1_SCOUNT);
}
spin_unlock_irqrestore(&s->lock, flags);
}
static void start_dac2(struct es1371_state *s)
{
unsigned long flags;
unsigned fragremain, fshift;
spin_lock_irqsave(&s->lock, flags);
if (!(s->ctrl & CTRL_DAC2_EN) && (s->dma_dac2.mapped || s->dma_dac2.count > 0)
&& s->dma_dac2.ready) {
s->ctrl |= CTRL_DAC2_EN;
s->sctrl = (s->sctrl & ~(SCTRL_P2LOOPSEL | SCTRL_P2PAUSE | SCTRL_P2DACSEN |
SCTRL_P2ENDINC | SCTRL_P2STINC)) | SCTRL_P2INTEN |
(((s->sctrl & SCTRL_P2FMT) ? 2 : 1) << SCTRL_SH_P2ENDINC) |
(0 << SCTRL_SH_P2STINC);
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
fragremain = ((- s->dma_dac2.hwptr) & (s->dma_dac2.fragsize-1));
fshift = sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
if (fragremain < 2*fshift)
fragremain = s->dma_dac2.fragsize;
outl((fragremain >> fshift) - 1, s->io+ES1371_REG_DAC2_SCOUNT);
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
outl((s->dma_dac2.fragsize >> fshift) - 1, s->io+ES1371_REG_DAC2_SCOUNT);
}
spin_unlock_irqrestore(&s->lock, flags);
}
static void start_adc(struct es1371_state *s)
{
unsigned long flags;
unsigned fragremain, fshift;
spin_lock_irqsave(&s->lock, flags);
if (!(s->ctrl & CTRL_ADC_EN) && (s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
&& s->dma_adc.ready) {
s->ctrl |= CTRL_ADC_EN;
s->sctrl = (s->sctrl & ~SCTRL_R1LOOPSEL) | SCTRL_R1INTEN;
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
fragremain = ((- s->dma_adc.hwptr) & (s->dma_adc.fragsize-1));
fshift = sample_shift[(s->sctrl & SCTRL_R1FMT) >> SCTRL_SH_R1FMT];
if (fragremain < 2*fshift)
fragremain = s->dma_adc.fragsize;
outl((fragremain >> fshift) - 1, s->io+ES1371_REG_ADC_SCOUNT);
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
outl((s->dma_adc.fragsize >> fshift) - 1, s->io+ES1371_REG_ADC_SCOUNT);
}
spin_unlock_irqrestore(&s->lock, flags);
}
/* --------------------------------------------------------------------- */
#define DMABUF_DEFAULTORDER (17-PAGE_SHIFT)
#define DMABUF_MINORDER 1
static inline void dealloc_dmabuf(struct es1371_state *s, struct dmabuf *db)
{
struct page *page, *pend;
if (db->rawbuf) {
/* undo marking the pages as reserved */
pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
for (page = virt_to_page(db->rawbuf); page <= pend; page++)
ClearPageReserved(page);
pci_free_consistent(s->dev, PAGE_SIZE << db->buforder, db->rawbuf, db->dmaaddr);
}
db->rawbuf = NULL;
db->mapped = db->ready = 0;
}
static int prog_dmabuf(struct es1371_state *s, struct dmabuf *db, unsigned rate, unsigned fmt, unsigned reg)
{
int order;
unsigned bytepersec;
unsigned bufs;
struct page *page, *pend;
db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
if (!db->rawbuf) {
db->ready = db->mapped = 0;
for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
if ((db->rawbuf = pci_alloc_consistent(s->dev, PAGE_SIZE << order, &db->dmaaddr)))
break;
if (!db->rawbuf)
return -ENOMEM;
db->buforder = order;
/* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */
pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
for (page = virt_to_page(db->rawbuf); page <= pend; page++)
SetPageReserved(page);
}
fmt &= ES1371_FMT_MASK;
bytepersec = rate << sample_shift[fmt];
bufs = PAGE_SIZE << db->buforder;
if (db->ossfragshift) {
if ((1000 << db->ossfragshift) < bytepersec)
db->fragshift = ld2(bytepersec/1000);
else
db->fragshift = db->ossfragshift;
} else {
db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
if (db->fragshift < 3)
db->fragshift = 3;
}
db->numfrag = bufs >> db->fragshift;
while (db->numfrag < 4 && db->fragshift > 3) {
db->fragshift--;
db->numfrag = bufs >> db->fragshift;
}
db->fragsize = 1 << db->fragshift;
if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
db->numfrag = db->ossmaxfrags;
db->fragsamples = db->fragsize >> sample_shift[fmt];
db->dmasize = db->numfrag << db->fragshift;
memset(db->rawbuf, (fmt & ES1371_FMT_S16) ? 0 : 0x80, db->dmasize);
outl((reg >> 8) & 15, s->io+ES1371_REG_MEMPAGE);
outl(db->dmaaddr, s->io+(reg & 0xff));
outl((db->dmasize >> 2)-1, s->io+((reg + 4) & 0xff));
db->enabled = 1;
db->ready = 1;
return 0;
}
static inline int prog_dmabuf_adc(struct es1371_state *s)
{
stop_adc(s);
return prog_dmabuf(s, &s->dma_adc, s->adcrate, (s->sctrl >> SCTRL_SH_R1FMT) & ES1371_FMT_MASK,
ES1371_REG_ADC_FRAMEADR);
}
static inline int prog_dmabuf_dac2(struct es1371_state *s)
{
stop_dac2(s);
return prog_dmabuf(s, &s->dma_dac2, s->dac2rate, (s->sctrl >> SCTRL_SH_P2FMT) & ES1371_FMT_MASK,
ES1371_REG_DAC2_FRAMEADR);
}
static inline int prog_dmabuf_dac1(struct es1371_state *s)
{
stop_dac1(s);
return prog_dmabuf(s, &s->dma_dac1, s->dac1rate, (s->sctrl >> SCTRL_SH_P1FMT) & ES1371_FMT_MASK,
ES1371_REG_DAC1_FRAMEADR);
}
static inline unsigned get_hwptr(struct es1371_state *s, struct dmabuf *db, unsigned reg)
{
unsigned hwptr, diff;
outl((reg >> 8) & 15, s->io+ES1371_REG_MEMPAGE);
hwptr = (inl(s->io+(reg & 0xff)) >> 14) & 0x3fffc;
diff = (db->dmasize + hwptr - db->hwptr) % db->dmasize;
db->hwptr = hwptr;
return diff;
}
static inline void clear_advance(void *buf, unsigned bsize, unsigned bptr, unsigned len, unsigned char c)
{
if (bptr + len > bsize) {
unsigned x = bsize - bptr;
memset(((char *)buf) + bptr, c, x);
bptr = 0;
len -= x;
}
memset(((char *)buf) + bptr, c, len);
}
/* call with spinlock held! */
static void es1371_update_ptr(struct es1371_state *s)
{
int diff;
/* update ADC pointer */
if (s->ctrl & CTRL_ADC_EN) {
diff = get_hwptr(s, &s->dma_adc, ES1371_REG_ADC_FRAMECNT);
s->dma_adc.total_bytes += diff;
s->dma_adc.count += diff;
if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
wake_up(&s->dma_adc.wait);
if (!s->dma_adc.mapped) {
if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
s->ctrl &= ~CTRL_ADC_EN;
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
s->dma_adc.error++;
}
}
}
/* update DAC1 pointer */
if (s->ctrl & CTRL_DAC1_EN) {
diff = get_hwptr(s, &s->dma_dac1, ES1371_REG_DAC1_FRAMECNT);
s->dma_dac1.total_bytes += diff;
if (s->dma_dac1.mapped) {
s->dma_dac1.count += diff;
if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
wake_up(&s->dma_dac1.wait);
} else {
s->dma_dac1.count -= diff;
if (s->dma_dac1.count <= 0) {
s->ctrl &= ~CTRL_DAC1_EN;
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
s->dma_dac1.error++;
} else if (s->dma_dac1.count <= (signed)s->dma_dac1.fragsize && !s->dma_dac1.endcleared) {
clear_advance(s->dma_dac1.rawbuf, s->dma_dac1.dmasize, s->dma_dac1.swptr,
s->dma_dac1.fragsize, (s->sctrl & SCTRL_P1SEB) ? 0 : 0x80);
s->dma_dac1.endcleared = 1;
}
if (s->dma_dac1.count + (signed)s->dma_dac1.fragsize <= (signed)s->dma_dac1.dmasize)
wake_up(&s->dma_dac1.wait);
}
}
/* update DAC2 pointer */
if (s->ctrl & CTRL_DAC2_EN) {
diff = get_hwptr(s, &s->dma_dac2, ES1371_REG_DAC2_FRAMECNT);
s->dma_dac2.total_bytes += diff;
if (s->dma_dac2.mapped) {
s->dma_dac2.count += diff;
if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
wake_up(&s->dma_dac2.wait);
} else {
s->dma_dac2.count -= diff;
if (s->dma_dac2.count <= 0) {
s->ctrl &= ~CTRL_DAC2_EN;
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
s->dma_dac2.error++;
} else if (s->dma_dac2.count <= (signed)s->dma_dac2.fragsize && !s->dma_dac2.endcleared) {
clear_advance(s->dma_dac2.rawbuf, s->dma_dac2.dmasize, s->dma_dac2.swptr,
s->dma_dac2.fragsize, (s->sctrl & SCTRL_P2SEB) ? 0 : 0x80);
s->dma_dac2.endcleared = 1;
}
if (s->dma_dac2.count + (signed)s->dma_dac2.fragsize <= (signed)s->dma_dac2.dmasize)
wake_up(&s->dma_dac2.wait);
}
}
}
/* hold spinlock for the following! */
static void es1371_handle_midi(struct es1371_state *s)
{
unsigned char ch;
int wake;
if (!(s->ctrl & CTRL_UART_EN))
return;
wake = 0;
while (inb(s->io+ES1371_REG_UART_STATUS) & USTAT_RXRDY) {
ch = inb(s->io+ES1371_REG_UART_DATA);
if (s->midi.icnt < MIDIINBUF) {
s->midi.ibuf[s->midi.iwr] = ch;
s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF;
s->midi.icnt++;
}
wake = 1;
}
if (wake)
wake_up(&s->midi.iwait);
wake = 0;
while ((inb(s->io+ES1371_REG_UART_STATUS) & USTAT_TXRDY) && s->midi.ocnt > 0) {
outb(s->midi.obuf[s->midi.ord], s->io+ES1371_REG_UART_DATA);
s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF;
s->midi.ocnt--;
if (s->midi.ocnt < MIDIOUTBUF-16)
wake = 1;
}
if (wake)
wake_up(&s->midi.owait);
outb((s->midi.ocnt > 0) ? UCTRL_RXINTEN | UCTRL_ENA_TXINT : UCTRL_RXINTEN, s->io+ES1371_REG_UART_CONTROL);
}
static irqreturn_t es1371_interrupt(int irq, void *dev_id)
{
struct es1371_state *s = dev_id;
unsigned int intsrc, sctl;
/* fastpath out, to ease interrupt sharing */
intsrc = inl(s->io+ES1371_REG_STATUS);
if (!(intsrc & 0x80000000))
return IRQ_NONE;
spin_lock(&s->lock);
/* clear audio interrupts first */
sctl = s->sctrl;
if (intsrc & STAT_ADC)
sctl &= ~SCTRL_R1INTEN;
if (intsrc & STAT_DAC1)
sctl &= ~SCTRL_P1INTEN;
if (intsrc & STAT_DAC2)
sctl &= ~SCTRL_P2INTEN;
outl(sctl, s->io+ES1371_REG_SERIAL_CONTROL);
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
es1371_update_ptr(s);
es1371_handle_midi(s);
spin_unlock(&s->lock);
return IRQ_HANDLED;
}
/* --------------------------------------------------------------------- */
static const char invalid_magic[] = KERN_CRIT PFX "invalid magic value\n";
#define VALIDATE_STATE(s) \
({ \
if (!(s) || (s)->magic != ES1371_MAGIC) { \
printk(invalid_magic); \
return -ENXIO; \
} \
})
/* --------------------------------------------------------------------- */
/* Conversion table for S/PDIF PCM volume emulation through the SRC */
/* dB-linear table of DAC vol values; -0dB to -46.5dB with mute */
static const unsigned short DACVolTable[101] =
{
0x1000, 0x0f2a, 0x0e60, 0x0da0, 0x0cea, 0x0c3e, 0x0b9a, 0x0aff,
0x0a6d, 0x09e1, 0x095e, 0x08e1, 0x086a, 0x07fa, 0x078f, 0x072a,
0x06cb, 0x0670, 0x061a, 0x05c9, 0x057b, 0x0532, 0x04ed, 0x04ab,
0x046d, 0x0432, 0x03fa, 0x03c5, 0x0392, 0x0363, 0x0335, 0x030b,
0x02e2, 0x02bc, 0x0297, 0x0275, 0x0254, 0x0235, 0x0217, 0x01fb,
0x01e1, 0x01c8, 0x01b0, 0x0199, 0x0184, 0x0170, 0x015d, 0x014b,
0x0139, 0x0129, 0x0119, 0x010b, 0x00fd, 0x00f0, 0x00e3, 0x00d7,
0x00cc, 0x00c1, 0x00b7, 0x00ae, 0x00a5, 0x009c, 0x0094, 0x008c,
0x0085, 0x007e, 0x0077, 0x0071, 0x006b, 0x0066, 0x0060, 0x005b,
0x0057, 0x0052, 0x004e, 0x004a, 0x0046, 0x0042, 0x003f, 0x003c,
0x0038, 0x0036, 0x0033, 0x0030, 0x002e, 0x002b, 0x0029, 0x0027,
0x0025, 0x0023, 0x0021, 0x001f, 0x001e, 0x001c, 0x001b, 0x0019,
0x0018, 0x0017, 0x0016, 0x0014, 0x0000
};
/*
* when we are in S/PDIF mode, we want to disable any analog output so
* we filter the mixer ioctls
*/
static int mixdev_ioctl(struct ac97_codec *codec, unsigned int cmd, unsigned long arg)
{
struct es1371_state *s = (struct es1371_state *)codec->private_data;
int val;
unsigned long flags;
unsigned int left, right;
VALIDATE_STATE(s);
/* filter mixer ioctls to catch PCM and MASTER volume when in S/PDIF mode */
if (s->spdif_volume == -1)
return codec->mixer_ioctl(codec, cmd, arg);
switch (cmd) {
case SOUND_MIXER_WRITE_VOLUME:
return 0;
case SOUND_MIXER_WRITE_PCM: /* use SRC for PCM volume */
if (get_user(val, (int __user *)arg))
return -EFAULT;
right = ((val >> 8) & 0xff);
left = (val & 0xff);
if (right > 100)
right = 100;
if (left > 100)
left = 100;
s->spdif_volume = (right << 8) | left;
spin_lock_irqsave(&s->lock, flags);
src_write(s, SRCREG_VOL_DAC2, DACVolTable[100 - left]);
src_write(s, SRCREG_VOL_DAC2+1, DACVolTable[100 - right]);
spin_unlock_irqrestore(&s->lock, flags);
return 0;
case SOUND_MIXER_READ_PCM:
return put_user(s->spdif_volume, (int __user *)arg);
}
return codec->mixer_ioctl(codec, cmd, arg);
}
/* --------------------------------------------------------------------- */
/*
* AC97 Mixer Register to Connections mapping of the Concert 97 board
*
* AC97_MASTER_VOL_STEREO Line Out
* AC97_MASTER_VOL_MONO TAD Output
* AC97_PCBEEP_VOL none
* AC97_PHONE_VOL TAD Input (mono)
* AC97_MIC_VOL MIC Input (mono)
* AC97_LINEIN_VOL Line Input (stereo)
* AC97_CD_VOL CD Input (stereo)
* AC97_VIDEO_VOL none
* AC97_AUX_VOL Aux Input (stereo)
* AC97_PCMOUT_VOL Wave Output (stereo)
*/
static int es1371_open_mixdev(struct inode *inode, struct file *file)
{
int minor = iminor(inode);
struct list_head *list;
struct es1371_state *s;
for (list = devs.next; ; list = list->next) {
if (list == &devs)
return -ENODEV;
s = list_entry(list, struct es1371_state, devs);
if (s->codec->dev_mixer == minor)
break;
}
VALIDATE_STATE(s);
file->private_data = s;
return nonseekable_open(inode, file);
}
static int es1371_release_mixdev(struct inode *inode, struct file *file)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
VALIDATE_STATE(s);
return 0;
}
static int es1371_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
struct ac97_codec *codec = s->codec;
return mixdev_ioctl(codec, cmd, arg);
}
static /*const*/ struct file_operations es1371_mixer_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.ioctl = es1371_ioctl_mixdev,
.open = es1371_open_mixdev,
.release = es1371_release_mixdev,
};
/* --------------------------------------------------------------------- */
static int drain_dac1(struct es1371_state *s, int nonblock)
{
DECLARE_WAITQUEUE(wait, current);
unsigned long flags;
int count, tmo;
if (s->dma_dac1.mapped || !s->dma_dac1.ready)
return 0;
add_wait_queue(&s->dma_dac1.wait, &wait);
for (;;) {
__set_current_state(TASK_INTERRUPTIBLE);
spin_lock_irqsave(&s->lock, flags);
count = s->dma_dac1.count;
spin_unlock_irqrestore(&s->lock, flags);
if (count <= 0)
break;
if (signal_pending(current))
break;
if (nonblock) {
remove_wait_queue(&s->dma_dac1.wait, &wait);
set_current_state(TASK_RUNNING);
return -EBUSY;
}
tmo = 3 * HZ * (count + s->dma_dac1.fragsize) / 2 / s->dac1rate;
tmo >>= sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
if (!schedule_timeout(tmo + 1))
DBG(printk(KERN_DEBUG PFX "dac1 dma timed out??\n");)
}
remove_wait_queue(&s->dma_dac1.wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
return 0;
}
static int drain_dac2(struct es1371_state *s, int nonblock)
{
DECLARE_WAITQUEUE(wait, current);
unsigned long flags;
int count, tmo;
if (s->dma_dac2.mapped || !s->dma_dac2.ready)
return 0;
add_wait_queue(&s->dma_dac2.wait, &wait);
for (;;) {
__set_current_state(TASK_UNINTERRUPTIBLE);
spin_lock_irqsave(&s->lock, flags);
count = s->dma_dac2.count;
spin_unlock_irqrestore(&s->lock, flags);
if (count <= 0)
break;
if (signal_pending(current))
break;
if (nonblock) {
remove_wait_queue(&s->dma_dac2.wait, &wait);
set_current_state(TASK_RUNNING);
return -EBUSY;
}
tmo = 3 * HZ * (count + s->dma_dac2.fragsize) / 2 / s->dac2rate;
tmo >>= sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
if (!schedule_timeout(tmo + 1))
DBG(printk(KERN_DEBUG PFX "dac2 dma timed out??\n");)
}
remove_wait_queue(&s->dma_dac2.wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
return 0;
}
/* --------------------------------------------------------------------- */
static ssize_t es1371_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
DECLARE_WAITQUEUE(wait, current);
ssize_t ret = 0;
unsigned long flags;
unsigned swptr;
int cnt;
VALIDATE_STATE(s);
if (s->dma_adc.mapped)
return -ENXIO;
if (!access_ok(VERIFY_WRITE, buffer, count))
return -EFAULT;
mutex_lock(&s->sem);
if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
goto out2;
add_wait_queue(&s->dma_adc.wait, &wait);
while (count > 0) {
spin_lock_irqsave(&s->lock, flags);
swptr = s->dma_adc.swptr;
cnt = s->dma_adc.dmasize-swptr;
if (s->dma_adc.count < cnt)
cnt = s->dma_adc.count;
if (cnt <= 0)
__set_current_state(TASK_INTERRUPTIBLE);
spin_unlock_irqrestore(&s->lock, flags);
if (cnt > count)
cnt = count;
if (cnt <= 0) {
if (s->dma_adc.enabled)
start_adc(s);
if (file->f_flags & O_NONBLOCK) {
if (!ret)
ret = -EAGAIN;
goto out;
}
mutex_unlock(&s->sem);
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out2;
}
mutex_lock(&s->sem);
if (s->dma_adc.mapped)
{
ret = -ENXIO;
goto out;
}
continue;
}
if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) {
if (!ret)
ret = -EFAULT;
goto out;
}
swptr = (swptr + cnt) % s->dma_adc.dmasize;
spin_lock_irqsave(&s->lock, flags);
s->dma_adc.swptr = swptr;
s->dma_adc.count -= cnt;
spin_unlock_irqrestore(&s->lock, flags);
count -= cnt;
buffer += cnt;
ret += cnt;
if (s->dma_adc.enabled)
start_adc(s);
}
out:
mutex_unlock(&s->sem);
out2:
remove_wait_queue(&s->dma_adc.wait, &wait);
set_current_state(TASK_RUNNING);
return ret;
}
static ssize_t es1371_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
DECLARE_WAITQUEUE(wait, current);
ssize_t ret;
unsigned long flags;
unsigned swptr;
int cnt;
VALIDATE_STATE(s);
if (s->dma_dac2.mapped)
return -ENXIO;
if (!access_ok(VERIFY_READ, buffer, count))
return -EFAULT;
mutex_lock(&s->sem);
if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
goto out3;
ret = 0;
add_wait_queue(&s->dma_dac2.wait, &wait);
while (count > 0) {
spin_lock_irqsave(&s->lock, flags);
if (s->dma_dac2.count < 0) {
s->dma_dac2.count = 0;
s->dma_dac2.swptr = s->dma_dac2.hwptr;
}
swptr = s->dma_dac2.swptr;
cnt = s->dma_dac2.dmasize-swptr;
if (s->dma_dac2.count + cnt > s->dma_dac2.dmasize)
cnt = s->dma_dac2.dmasize - s->dma_dac2.count;
if (cnt <= 0)
__set_current_state(TASK_INTERRUPTIBLE);
spin_unlock_irqrestore(&s->lock, flags);
if (cnt > count)
cnt = count;
if (cnt <= 0) {
if (s->dma_dac2.enabled)
start_dac2(s);
if (file->f_flags & O_NONBLOCK) {
if (!ret)
ret = -EAGAIN;
goto out;
}
mutex_unlock(&s->sem);
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out2;
}
mutex_lock(&s->sem);
if (s->dma_dac2.mapped)
{
ret = -ENXIO;
goto out;
}
continue;
}
if (copy_from_user(s->dma_dac2.rawbuf + swptr, buffer, cnt)) {
if (!ret)
ret = -EFAULT;
goto out;
}
swptr = (swptr + cnt) % s->dma_dac2.dmasize;
spin_lock_irqsave(&s->lock, flags);
s->dma_dac2.swptr = swptr;
s->dma_dac2.count += cnt;
s->dma_dac2.endcleared = 0;
spin_unlock_irqrestore(&s->lock, flags);
count -= cnt;
buffer += cnt;
ret += cnt;
if (s->dma_dac2.enabled)
start_dac2(s);
}
out:
mutex_unlock(&s->sem);
out2:
remove_wait_queue(&s->dma_dac2.wait, &wait);
out3:
set_current_state(TASK_RUNNING);
return ret;
}
/* No kernel lock - we have our own spinlock */
static unsigned int es1371_poll(struct file *file, struct poll_table_struct *wait)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
unsigned long flags;
unsigned int mask = 0;
VALIDATE_STATE(s);
if (file->f_mode & FMODE_WRITE) {
if (!s->dma_dac2.ready && prog_dmabuf_dac2(s))
return 0;
poll_wait(file, &s->dma_dac2.wait, wait);
}
if (file->f_mode & FMODE_READ) {
if (!s->dma_adc.ready && prog_dmabuf_adc(s))
return 0;
poll_wait(file, &s->dma_adc.wait, wait);
}
spin_lock_irqsave(&s->lock, flags);
es1371_update_ptr(s);
if (file->f_mode & FMODE_READ) {
if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
mask |= POLLIN | POLLRDNORM;
}
if (file->f_mode & FMODE_WRITE) {
if (s->dma_dac2.mapped) {
if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
mask |= POLLOUT | POLLWRNORM;
} else {
if ((signed)s->dma_dac2.dmasize >= s->dma_dac2.count + (signed)s->dma_dac2.fragsize)
mask |= POLLOUT | POLLWRNORM;
}
}
spin_unlock_irqrestore(&s->lock, flags);
return mask;
}
static int es1371_mmap(struct file *file, struct vm_area_struct *vma)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
struct dmabuf *db;
int ret = 0;
unsigned long size;
VALIDATE_STATE(s);
lock_kernel();
mutex_lock(&s->sem);
if (vma->vm_flags & VM_WRITE) {
if ((ret = prog_dmabuf_dac2(s)) != 0) {
goto out;
}
db = &s->dma_dac2;
} else if (vma->vm_flags & VM_READ) {
if ((ret = prog_dmabuf_adc(s)) != 0) {
goto out;
}
db = &s->dma_adc;
} else {
ret = -EINVAL;
goto out;
}
if (vma->vm_pgoff != 0) {
ret = -EINVAL;
goto out;
}
size = vma->vm_end - vma->vm_start;
if (size > (PAGE_SIZE << db->buforder)) {
ret = -EINVAL;
goto out;
}
if (remap_pfn_range(vma, vma->vm_start,
virt_to_phys(db->rawbuf) >> PAGE_SHIFT,
size, vma->vm_page_prot)) {
ret = -EAGAIN;
goto out;
}
db->mapped = 1;
out:
mutex_unlock(&s->sem);
unlock_kernel();
return ret;
}
static int es1371_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
unsigned long flags;
audio_buf_info abinfo;
count_info cinfo;
int count;
int val, mapped, ret;
void __user *argp = (void __user *)arg;
int __user *p = argp;
VALIDATE_STATE(s);
mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac2.mapped) ||
((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
switch (cmd) {
case OSS_GETVERSION:
return put_user(SOUND_VERSION, p);
case SNDCTL_DSP_SYNC:
if (file->f_mode & FMODE_WRITE)
return drain_dac2(s, 0/*file->f_flags & O_NONBLOCK*/);
return 0;
case SNDCTL_DSP_SETDUPLEX:
return 0;
case SNDCTL_DSP_GETCAPS:
return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
case SNDCTL_DSP_RESET:
if (file->f_mode & FMODE_WRITE) {
stop_dac2(s);
synchronize_irq(s->irq);
s->dma_dac2.swptr = s->dma_dac2.hwptr = s->dma_dac2.count = s->dma_dac2.total_bytes = 0;
}
if (file->f_mode & FMODE_READ) {
stop_adc(s);
synchronize_irq(s->irq);
s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
}
return 0;
case SNDCTL_DSP_SPEED:
if (get_user(val, p))
return -EFAULT;
if (val >= 0) {
if (file->f_mode & FMODE_READ) {
stop_adc(s);
s->dma_adc.ready = 0;
set_adc_rate(s, val);
}
if (file->f_mode & FMODE_WRITE) {
stop_dac2(s);
s->dma_dac2.ready = 0;
set_dac2_rate(s, val);
}
}
return put_user((file->f_mode & FMODE_READ) ? s->adcrate : s->dac2rate, p);
case SNDCTL_DSP_STEREO:
if (get_user(val, p))
return -EFAULT;
if (file->f_mode & FMODE_READ) {
stop_adc(s);
s->dma_adc.ready = 0;
spin_lock_irqsave(&s->lock, flags);
if (val)
s->sctrl |= SCTRL_R1SMB;
else
s->sctrl &= ~SCTRL_R1SMB;
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
}
if (file->f_mode & FMODE_WRITE) {
stop_dac2(s);
s->dma_dac2.ready = 0;
spin_lock_irqsave(&s->lock, flags);
if (val)
s->sctrl |= SCTRL_P2SMB;
else
s->sctrl &= ~SCTRL_P2SMB;
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
}
return 0;
case SNDCTL_DSP_CHANNELS:
if (get_user(val, p))
return -EFAULT;
if (val != 0) {
if (file->f_mode & FMODE_READ) {
stop_adc(s);
s->dma_adc.ready = 0;
spin_lock_irqsave(&s->lock, flags);
if (val >= 2)
s->sctrl |= SCTRL_R1SMB;
else
s->sctrl &= ~SCTRL_R1SMB;
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
}
if (file->f_mode & FMODE_WRITE) {
stop_dac2(s);
s->dma_dac2.ready = 0;
spin_lock_irqsave(&s->lock, flags);
if (val >= 2)
s->sctrl |= SCTRL_P2SMB;
else
s->sctrl &= ~SCTRL_P2SMB;
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
}
}
return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, p);
case SNDCTL_DSP_GETFMTS: /* Returns a mask */
return put_user(AFMT_S16_LE|AFMT_U8, p);
case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
if (get_user(val, p))
return -EFAULT;
if (val != AFMT_QUERY) {
if (file->f_mode & FMODE_READ) {
stop_adc(s);
s->dma_adc.ready = 0;
spin_lock_irqsave(&s->lock, flags);
if (val == AFMT_S16_LE)
s->sctrl |= SCTRL_R1SEB;
else
s->sctrl &= ~SCTRL_R1SEB;
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
}
if (file->f_mode & FMODE_WRITE) {
stop_dac2(s);
s->dma_dac2.ready = 0;
spin_lock_irqsave(&s->lock, flags);
if (val == AFMT_S16_LE)
s->sctrl |= SCTRL_P2SEB;
else
s->sctrl &= ~SCTRL_P2SEB;
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
}
}
return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
AFMT_S16_LE : AFMT_U8, p);
case SNDCTL_DSP_POST:
return 0;
case SNDCTL_DSP_GETTRIGGER:
val = 0;
if (file->f_mode & FMODE_READ && s->ctrl & CTRL_ADC_EN)
val |= PCM_ENABLE_INPUT;
if (file->f_mode & FMODE_WRITE && s->ctrl & CTRL_DAC2_EN)
val |= PCM_ENABLE_OUTPUT;
return put_user(val, p);
case SNDCTL_DSP_SETTRIGGER:
if (get_user(val, p))
return -EFAULT;
if (file->f_mode & FMODE_READ) {
if (val & PCM_ENABLE_INPUT) {
if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
return ret;
s->dma_adc.enabled = 1;
start_adc(s);
} else {
s->dma_adc.enabled = 0;
stop_adc(s);
}
}
if (file->f_mode & FMODE_WRITE) {
if (val & PCM_ENABLE_OUTPUT) {
if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
return ret;
s->dma_dac2.enabled = 1;
start_dac2(s);
} else {
s->dma_dac2.enabled = 0;
stop_dac2(s);
}
}
return 0;
case SNDCTL_DSP_GETOSPACE:
if (!(file->f_mode & FMODE_WRITE))
return -EINVAL;
if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
return val;
spin_lock_irqsave(&s->lock, flags);
es1371_update_ptr(s);
abinfo.fragsize = s->dma_dac2.fragsize;
count = s->dma_dac2.count;
if (count < 0)
count = 0;
abinfo.bytes = s->dma_dac2.dmasize - count;
abinfo.fragstotal = s->dma_dac2.numfrag;
abinfo.fragments = abinfo.bytes >> s->dma_dac2.fragshift;
spin_unlock_irqrestore(&s->lock, flags);
return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
case SNDCTL_DSP_GETISPACE:
if (!(file->f_mode & FMODE_READ))
return -EINVAL;
if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s)) != 0)
return val;
spin_lock_irqsave(&s->lock, flags);
es1371_update_ptr(s);
abinfo.fragsize = s->dma_adc.fragsize;
count = s->dma_adc.count;
if (count < 0)
count = 0;
abinfo.bytes = count;
abinfo.fragstotal = s->dma_adc.numfrag;
abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
spin_unlock_irqrestore(&s->lock, flags);
return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
case SNDCTL_DSP_NONBLOCK:
file->f_flags |= O_NONBLOCK;
return 0;
case SNDCTL_DSP_GETODELAY:
if (!(file->f_mode & FMODE_WRITE))
return -EINVAL;
if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
return val;
spin_lock_irqsave(&s->lock, flags);
es1371_update_ptr(s);
count = s->dma_dac2.count;
spin_unlock_irqrestore(&s->lock, flags);
if (count < 0)
count = 0;
return put_user(count, p);
case SNDCTL_DSP_GETIPTR:
if (!(file->f_mode & FMODE_READ))
return -EINVAL;
if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s)) != 0)
return val;
spin_lock_irqsave(&s->lock, flags);
es1371_update_ptr(s);
cinfo.bytes = s->dma_adc.total_bytes;
count = s->dma_adc.count;
if (count < 0)
count = 0;
cinfo.blocks = count >> s->dma_adc.fragshift;
cinfo.ptr = s->dma_adc.hwptr;
if (s->dma_adc.mapped)
s->dma_adc.count &= s->dma_adc.fragsize-1;
spin_unlock_irqrestore(&s->lock, flags);
if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
return -EFAULT;
return 0;
case SNDCTL_DSP_GETOPTR:
if (!(file->f_mode & FMODE_WRITE))
return -EINVAL;
if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
return val;
spin_lock_irqsave(&s->lock, flags);
es1371_update_ptr(s);
cinfo.bytes = s->dma_dac2.total_bytes;
count = s->dma_dac2.count;
if (count < 0)
count = 0;
cinfo.blocks = count >> s->dma_dac2.fragshift;
cinfo.ptr = s->dma_dac2.hwptr;
if (s->dma_dac2.mapped)
s->dma_dac2.count &= s->dma_dac2.fragsize-1;
spin_unlock_irqrestore(&s->lock, flags);
if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
return -EFAULT;
return 0;
case SNDCTL_DSP_GETBLKSIZE:
if (file->f_mode & FMODE_WRITE) {
if ((val = prog_dmabuf_dac2(s)))
return val;
return put_user(s->dma_dac2.fragsize, p);
}
if ((val = prog_dmabuf_adc(s)))
return val;
return put_user(s->dma_adc.fragsize, p);
case SNDCTL_DSP_SETFRAGMENT:
if (get_user(val, p))
return -EFAULT;
if (file->f_mode & FMODE_READ) {
s->dma_adc.ossfragshift = val & 0xffff;
s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
if (s->dma_adc.ossfragshift < 4)
s->dma_adc.ossfragshift = 4;
if (s->dma_adc.ossfragshift > 15)
s->dma_adc.ossfragshift = 15;
if (s->dma_adc.ossmaxfrags < 4)
s->dma_adc.ossmaxfrags = 4;
}
if (file->f_mode & FMODE_WRITE) {
s->dma_dac2.ossfragshift = val & 0xffff;
s->dma_dac2.ossmaxfrags = (val >> 16) & 0xffff;
if (s->dma_dac2.ossfragshift < 4)
s->dma_dac2.ossfragshift = 4;
if (s->dma_dac2.ossfragshift > 15)
s->dma_dac2.ossfragshift = 15;
if (s->dma_dac2.ossmaxfrags < 4)
s->dma_dac2.ossmaxfrags = 4;
}
return 0;
case SNDCTL_DSP_SUBDIVIDE:
if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
(file->f_mode & FMODE_WRITE && s->dma_dac2.subdivision))
return -EINVAL;
if (get_user(val, p))
return -EFAULT;
if (val != 1 && val != 2 && val != 4)
return -EINVAL;
if (file->f_mode & FMODE_READ)
s->dma_adc.subdivision = val;
if (file->f_mode & FMODE_WRITE)
s->dma_dac2.subdivision = val;
return 0;
case SOUND_PCM_READ_RATE:
return put_user((file->f_mode & FMODE_READ) ? s->adcrate : s->dac2rate, p);
case SOUND_PCM_READ_CHANNELS:
return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, p);
case SOUND_PCM_READ_BITS:
return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ? 16 : 8, p);
case SOUND_PCM_WRITE_FILTER:
case SNDCTL_DSP_SETSYNCRO:
case SOUND_PCM_READ_FILTER:
return -EINVAL;
}
return mixdev_ioctl(s->codec, cmd, arg);
}
static int es1371_open(struct inode *inode, struct file *file)
{
int minor = iminor(inode);
DECLARE_WAITQUEUE(wait, current);
unsigned long flags;
struct list_head *list;
struct es1371_state *s;
for (list = devs.next; ; list = list->next) {
if (list == &devs)
return -ENODEV;
s = list_entry(list, struct es1371_state, devs);
if (!((s->dev_audio ^ minor) & ~0xf))
break;
}
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
mutex_lock(&s->open_mutex);
while (s->open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
mutex_lock(&s->open_mutex);
}
if (file->f_mode & FMODE_READ) {
s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
s->dma_adc.enabled = 1;
set_adc_rate(s, 8000);
}
if (file->f_mode & FMODE_WRITE) {
s->dma_dac2.ossfragshift = s->dma_dac2.ossmaxfrags = s->dma_dac2.subdivision = 0;
s->dma_dac2.enabled = 1;
set_dac2_rate(s, 8000);
}
spin_lock_irqsave(&s->lock, flags);
if (file->f_mode & FMODE_READ) {
s->sctrl &= ~SCTRL_R1FMT;
if ((minor & 0xf) == SND_DEV_DSP16)
s->sctrl |= ES1371_FMT_S16_MONO << SCTRL_SH_R1FMT;
else
s->sctrl |= ES1371_FMT_U8_MONO << SCTRL_SH_R1FMT;
}
if (file->f_mode & FMODE_WRITE) {
s->sctrl &= ~SCTRL_P2FMT;
if ((minor & 0xf) == SND_DEV_DSP16)
s->sctrl |= ES1371_FMT_S16_MONO << SCTRL_SH_P2FMT;
else
s->sctrl |= ES1371_FMT_U8_MONO << SCTRL_SH_P2FMT;
}
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
mutex_unlock(&s->open_mutex);
mutex_init(&s->sem);
return nonseekable_open(inode, file);
}
static int es1371_release(struct inode *inode, struct file *file)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
VALIDATE_STATE(s);
lock_kernel();
if (file->f_mode & FMODE_WRITE)
drain_dac2(s, file->f_flags & O_NONBLOCK);
mutex_lock(&s->open_mutex);
if (file->f_mode & FMODE_WRITE) {
stop_dac2(s);
dealloc_dmabuf(s, &s->dma_dac2);
}
if (file->f_mode & FMODE_READ) {
stop_adc(s);
dealloc_dmabuf(s, &s->dma_adc);
}
s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
unlock_kernel();
return 0;
}
static /*const*/ struct file_operations es1371_audio_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.read = es1371_read,
.write = es1371_write,
.poll = es1371_poll,
.ioctl = es1371_ioctl,
.mmap = es1371_mmap,
.open = es1371_open,
.release = es1371_release,
};
/* --------------------------------------------------------------------- */
static ssize_t es1371_write_dac(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
DECLARE_WAITQUEUE(wait, current);
ssize_t ret = 0;
unsigned long flags;
unsigned swptr;
int cnt;
VALIDATE_STATE(s);
if (s->dma_dac1.mapped)
return -ENXIO;
if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
return ret;
if (!access_ok(VERIFY_READ, buffer, count))
return -EFAULT;
add_wait_queue(&s->dma_dac1.wait, &wait);
while (count > 0) {
spin_lock_irqsave(&s->lock, flags);
if (s->dma_dac1.count < 0) {
s->dma_dac1.count = 0;
s->dma_dac1.swptr = s->dma_dac1.hwptr;
}
swptr = s->dma_dac1.swptr;
cnt = s->dma_dac1.dmasize-swptr;
if (s->dma_dac1.count + cnt > s->dma_dac1.dmasize)
cnt = s->dma_dac1.dmasize - s->dma_dac1.count;
if (cnt <= 0)
__set_current_state(TASK_INTERRUPTIBLE);
spin_unlock_irqrestore(&s->lock, flags);
if (cnt > count)
cnt = count;
if (cnt <= 0) {
if (s->dma_dac1.enabled)
start_dac1(s);
if (file->f_flags & O_NONBLOCK) {
if (!ret)
ret = -EAGAIN;
break;
}
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
break;
}
continue;
}
if (copy_from_user(s->dma_dac1.rawbuf + swptr, buffer, cnt)) {
if (!ret)
ret = -EFAULT;
break;
}
swptr = (swptr + cnt) % s->dma_dac1.dmasize;
spin_lock_irqsave(&s->lock, flags);
s->dma_dac1.swptr = swptr;
s->dma_dac1.count += cnt;
s->dma_dac1.endcleared = 0;
spin_unlock_irqrestore(&s->lock, flags);
count -= cnt;
buffer += cnt;
ret += cnt;
if (s->dma_dac1.enabled)
start_dac1(s);
}
remove_wait_queue(&s->dma_dac1.wait, &wait);
set_current_state(TASK_RUNNING);
return ret;
}
/* No kernel lock - we have our own spinlock */
static unsigned int es1371_poll_dac(struct file *file, struct poll_table_struct *wait)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
unsigned long flags;
unsigned int mask = 0;
VALIDATE_STATE(s);
if (!s->dma_dac1.ready && prog_dmabuf_dac1(s))
return 0;
poll_wait(file, &s->dma_dac1.wait, wait);
spin_lock_irqsave(&s->lock, flags);
es1371_update_ptr(s);
if (s->dma_dac1.mapped) {
if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
mask |= POLLOUT | POLLWRNORM;
} else {
if ((signed)s->dma_dac1.dmasize >= s->dma_dac1.count + (signed)s->dma_dac1.fragsize)
mask |= POLLOUT | POLLWRNORM;
}
spin_unlock_irqrestore(&s->lock, flags);
return mask;
}
static int es1371_mmap_dac(struct file *file, struct vm_area_struct *vma)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
int ret;
unsigned long size;
VALIDATE_STATE(s);
if (!(vma->vm_flags & VM_WRITE))
return -EINVAL;
lock_kernel();
if ((ret = prog_dmabuf_dac1(s)) != 0)
goto out;
ret = -EINVAL;
if (vma->vm_pgoff != 0)
goto out;
size = vma->vm_end - vma->vm_start;
if (size > (PAGE_SIZE << s->dma_dac1.buforder))
goto out;
ret = -EAGAIN;
if (remap_pfn_range(vma, vma->vm_start,
virt_to_phys(s->dma_dac1.rawbuf) >> PAGE_SHIFT,
size, vma->vm_page_prot))
goto out;
s->dma_dac1.mapped = 1;
ret = 0;
out:
unlock_kernel();
return ret;
}
static int es1371_ioctl_dac(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
unsigned long flags;
audio_buf_info abinfo;
count_info cinfo;
int count;
int val, ret;
int __user *p = (int __user *)arg;
VALIDATE_STATE(s);
switch (cmd) {
case OSS_GETVERSION:
return put_user(SOUND_VERSION, p);
case SNDCTL_DSP_SYNC:
return drain_dac1(s, 0/*file->f_flags & O_NONBLOCK*/);
case SNDCTL_DSP_SETDUPLEX:
return -EINVAL;
case SNDCTL_DSP_GETCAPS:
return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
case SNDCTL_DSP_RESET:
stop_dac1(s);
synchronize_irq(s->irq);
s->dma_dac1.swptr = s->dma_dac1.hwptr = s->dma_dac1.count = s->dma_dac1.total_bytes = 0;
return 0;
case SNDCTL_DSP_SPEED:
if (get_user(val, p))
return -EFAULT;
if (val >= 0) {
stop_dac1(s);
s->dma_dac1.ready = 0;
set_dac1_rate(s, val);
}
return put_user(s->dac1rate, p);
case SNDCTL_DSP_STEREO:
if (get_user(val, p))
return -EFAULT;
stop_dac1(s);
s->dma_dac1.ready = 0;
spin_lock_irqsave(&s->lock, flags);
if (val)
s->sctrl |= SCTRL_P1SMB;
else
s->sctrl &= ~SCTRL_P1SMB;
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
return 0;
case SNDCTL_DSP_CHANNELS:
if (get_user(val, p))
return -EFAULT;
if (val != 0) {
stop_dac1(s);
s->dma_dac1.ready = 0;
spin_lock_irqsave(&s->lock, flags);
if (val >= 2)
s->sctrl |= SCTRL_P1SMB;
else
s->sctrl &= ~SCTRL_P1SMB;
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
}
return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, p);
case SNDCTL_DSP_GETFMTS: /* Returns a mask */
return put_user(AFMT_S16_LE|AFMT_U8, p);
case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
if (get_user(val, p))
return -EFAULT;
if (val != AFMT_QUERY) {
stop_dac1(s);
s->dma_dac1.ready = 0;
spin_lock_irqsave(&s->lock, flags);
if (val == AFMT_S16_LE)
s->sctrl |= SCTRL_P1SEB;
else
s->sctrl &= ~SCTRL_P1SEB;
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
}
return put_user((s->sctrl & SCTRL_P1SEB) ? AFMT_S16_LE : AFMT_U8, p);
case SNDCTL_DSP_POST:
return 0;
case SNDCTL_DSP_GETTRIGGER:
return put_user((s->ctrl & CTRL_DAC1_EN) ? PCM_ENABLE_OUTPUT : 0, p);
case SNDCTL_DSP_SETTRIGGER:
if (get_user(val, p))
return -EFAULT;
if (val & PCM_ENABLE_OUTPUT) {
if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
return ret;
s->dma_dac1.enabled = 1;
start_dac1(s);
} else {
s->dma_dac1.enabled = 0;
stop_dac1(s);
}
return 0;
case SNDCTL_DSP_GETOSPACE:
if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
return val;
spin_lock_irqsave(&s->lock, flags);
es1371_update_ptr(s);
abinfo.fragsize = s->dma_dac1.fragsize;
count = s->dma_dac1.count;
if (count < 0)
count = 0;
abinfo.bytes = s->dma_dac1.dmasize - count;
abinfo.fragstotal = s->dma_dac1.numfrag;
abinfo.fragments = abinfo.bytes >> s->dma_dac1.fragshift;
spin_unlock_irqrestore(&s->lock, flags);
return copy_to_user((void __user *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
case SNDCTL_DSP_NONBLOCK:
file->f_flags |= O_NONBLOCK;
return 0;
case SNDCTL_DSP_GETODELAY:
if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
return val;
spin_lock_irqsave(&s->lock, flags);
es1371_update_ptr(s);
count = s->dma_dac1.count;
spin_unlock_irqrestore(&s->lock, flags);
if (count < 0)
count = 0;
return put_user(count, p);
case SNDCTL_DSP_GETOPTR:
if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
return val;
spin_lock_irqsave(&s->lock, flags);
es1371_update_ptr(s);
cinfo.bytes = s->dma_dac1.total_bytes;
count = s->dma_dac1.count;
if (count < 0)
count = 0;
cinfo.blocks = count >> s->dma_dac1.fragshift;
cinfo.ptr = s->dma_dac1.hwptr;
if (s->dma_dac1.mapped)
s->dma_dac1.count &= s->dma_dac1.fragsize-1;
spin_unlock_irqrestore(&s->lock, flags);
if (copy_to_user((void __user *)arg, &cinfo, sizeof(cinfo)))
return -EFAULT;
return 0;
case SNDCTL_DSP_GETBLKSIZE:
if ((val = prog_dmabuf_dac1(s)))
return val;
return put_user(s->dma_dac1.fragsize, p);
case SNDCTL_DSP_SETFRAGMENT:
if (get_user(val, p))
return -EFAULT;
s->dma_dac1.ossfragshift = val & 0xffff;
s->dma_dac1.ossmaxfrags = (val >> 16) & 0xffff;
if (s->dma_dac1.ossfragshift < 4)
s->dma_dac1.ossfragshift = 4;
if (s->dma_dac1.ossfragshift > 15)
s->dma_dac1.ossfragshift = 15;
if (s->dma_dac1.ossmaxfrags < 4)
s->dma_dac1.ossmaxfrags = 4;
return 0;
case SNDCTL_DSP_SUBDIVIDE:
if (s->dma_dac1.subdivision)
return -EINVAL;
if (get_user(val, p))
return -EFAULT;
if (val != 1 && val != 2 && val != 4)
return -EINVAL;
s->dma_dac1.subdivision = val;
return 0;
case SOUND_PCM_READ_RATE:
return put_user(s->dac1rate, p);
case SOUND_PCM_READ_CHANNELS:
return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, p);
case SOUND_PCM_READ_BITS:
return put_user((s->sctrl & SCTRL_P1SEB) ? 16 : 8, p);
case SOUND_PCM_WRITE_FILTER:
case SNDCTL_DSP_SETSYNCRO:
case SOUND_PCM_READ_FILTER:
return -EINVAL;
}
return mixdev_ioctl(s->codec, cmd, arg);
}
static int es1371_open_dac(struct inode *inode, struct file *file)
{
int minor = iminor(inode);
DECLARE_WAITQUEUE(wait, current);
unsigned long flags;
struct list_head *list;
struct es1371_state *s;
for (list = devs.next; ; list = list->next) {
if (list == &devs)
return -ENODEV;
s = list_entry(list, struct es1371_state, devs);
if (!((s->dev_dac ^ minor) & ~0xf))
break;
}
VALIDATE_STATE(s);
/* we allow opening with O_RDWR, most programs do it although they will only write */
#if 0
if (file->f_mode & FMODE_READ)
return -EPERM;
#endif
if (!(file->f_mode & FMODE_WRITE))
return -EINVAL;
file->private_data = s;
/* wait for device to become free */
mutex_lock(&s->open_mutex);
while (s->open_mode & FMODE_DAC) {
if (file->f_flags & O_NONBLOCK) {
mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
mutex_lock(&s->open_mutex);
}
s->dma_dac1.ossfragshift = s->dma_dac1.ossmaxfrags = s->dma_dac1.subdivision = 0;
s->dma_dac1.enabled = 1;
set_dac1_rate(s, 8000);
spin_lock_irqsave(&s->lock, flags);
s->sctrl &= ~SCTRL_P1FMT;
if ((minor & 0xf) == SND_DEV_DSP16)
s->sctrl |= ES1371_FMT_S16_MONO << SCTRL_SH_P1FMT;
else
s->sctrl |= ES1371_FMT_U8_MONO << SCTRL_SH_P1FMT;
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
spin_unlock_irqrestore(&s->lock, flags);
s->open_mode |= FMODE_DAC;
mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
static int es1371_release_dac(struct inode *inode, struct file *file)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
VALIDATE_STATE(s);
lock_kernel();
drain_dac1(s, file->f_flags & O_NONBLOCK);
mutex_lock(&s->open_mutex);
stop_dac1(s);
dealloc_dmabuf(s, &s->dma_dac1);
s->open_mode &= ~FMODE_DAC;
mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
unlock_kernel();
return 0;
}
static /*const*/ struct file_operations es1371_dac_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.write = es1371_write_dac,
.poll = es1371_poll_dac,
.ioctl = es1371_ioctl_dac,
.mmap = es1371_mmap_dac,
.open = es1371_open_dac,
.release = es1371_release_dac,
};
/* --------------------------------------------------------------------- */
static ssize_t es1371_midi_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
DECLARE_WAITQUEUE(wait, current);
ssize_t ret;
unsigned long flags;
unsigned ptr;
int cnt;
VALIDATE_STATE(s);
if (!access_ok(VERIFY_WRITE, buffer, count))
return -EFAULT;
if (count == 0)
return 0;
ret = 0;
add_wait_queue(&s->midi.iwait, &wait);
while (count > 0) {
spin_lock_irqsave(&s->lock, flags);
ptr = s->midi.ird;
cnt = MIDIINBUF - ptr;
if (s->midi.icnt < cnt)
cnt = s->midi.icnt;
if (cnt <= 0)
__set_current_state(TASK_INTERRUPTIBLE);
spin_unlock_irqrestore(&s->lock, flags);
if (cnt > count)
cnt = count;
if (cnt <= 0) {
if (file->f_flags & O_NONBLOCK) {
if (!ret)
ret = -EAGAIN;
break;
}
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
break;
}
continue;
}
if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt)) {
if (!ret)
ret = -EFAULT;
break;
}
ptr = (ptr + cnt) % MIDIINBUF;
spin_lock_irqsave(&s->lock, flags);
s->midi.ird = ptr;
s->midi.icnt -= cnt;
spin_unlock_irqrestore(&s->lock, flags);
count -= cnt;
buffer += cnt;
ret += cnt;
break;
}
__set_current_state(TASK_RUNNING);
remove_wait_queue(&s->midi.iwait, &wait);
return ret;
}
static ssize_t es1371_midi_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
DECLARE_WAITQUEUE(wait, current);
ssize_t ret;
unsigned long flags;
unsigned ptr;
int cnt;
VALIDATE_STATE(s);
if (!access_ok(VERIFY_READ, buffer, count))
return -EFAULT;
if (count == 0)
return 0;
ret = 0;
add_wait_queue(&s->midi.owait, &wait);
while (count > 0) {
spin_lock_irqsave(&s->lock, flags);
ptr = s->midi.owr;
cnt = MIDIOUTBUF - ptr;
if (s->midi.ocnt + cnt > MIDIOUTBUF)
cnt = MIDIOUTBUF - s->midi.ocnt;
if (cnt <= 0) {
__set_current_state(TASK_INTERRUPTIBLE);
es1371_handle_midi(s);
}
spin_unlock_irqrestore(&s->lock, flags);
if (cnt > count)
cnt = count;
if (cnt <= 0) {
if (file->f_flags & O_NONBLOCK) {
if (!ret)
ret = -EAGAIN;
break;
}
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
break;
}
continue;
}
if (copy_from_user(s->midi.obuf + ptr, buffer, cnt)) {
if (!ret)
ret = -EFAULT;
break;
}
ptr = (ptr + cnt) % MIDIOUTBUF;
spin_lock_irqsave(&s->lock, flags);
s->midi.owr = ptr;
s->midi.ocnt += cnt;
spin_unlock_irqrestore(&s->lock, flags);
count -= cnt;
buffer += cnt;
ret += cnt;
spin_lock_irqsave(&s->lock, flags);
es1371_handle_midi(s);
spin_unlock_irqrestore(&s->lock, flags);
}
__set_current_state(TASK_RUNNING);
remove_wait_queue(&s->midi.owait, &wait);
return ret;
}
/* No kernel lock - we have our own spinlock */
static unsigned int es1371_midi_poll(struct file *file, struct poll_table_struct *wait)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
unsigned long flags;
unsigned int mask = 0;
VALIDATE_STATE(s);
if (file->f_mode & FMODE_WRITE)
poll_wait(file, &s->midi.owait, wait);
if (file->f_mode & FMODE_READ)
poll_wait(file, &s->midi.iwait, wait);
spin_lock_irqsave(&s->lock, flags);
if (file->f_mode & FMODE_READ) {
if (s->midi.icnt > 0)
mask |= POLLIN | POLLRDNORM;
}
if (file->f_mode & FMODE_WRITE) {
if (s->midi.ocnt < MIDIOUTBUF)
mask |= POLLOUT | POLLWRNORM;
}
spin_unlock_irqrestore(&s->lock, flags);
return mask;
}
static int es1371_midi_open(struct inode *inode, struct file *file)
{
int minor = iminor(inode);
DECLARE_WAITQUEUE(wait, current);
unsigned long flags;
struct list_head *list;
struct es1371_state *s;
for (list = devs.next; ; list = list->next) {
if (list == &devs)
return -ENODEV;
s = list_entry(list, struct es1371_state, devs);
if (s->dev_midi == minor)
break;
}
VALIDATE_STATE(s);
file->private_data = s;
/* wait for device to become free */
mutex_lock(&s->open_mutex);
while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
if (file->f_flags & O_NONBLOCK) {
mutex_unlock(&s->open_mutex);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
mutex_unlock(&s->open_mutex);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
mutex_lock(&s->open_mutex);
}
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
outb(UCTRL_CNTRL_SWR, s->io+ES1371_REG_UART_CONTROL);
outb(0, s->io+ES1371_REG_UART_CONTROL);
outb(0, s->io+ES1371_REG_UART_TEST);
}
if (file->f_mode & FMODE_READ) {
s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
}
if (file->f_mode & FMODE_WRITE) {
s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
}
s->ctrl |= CTRL_UART_EN;
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
es1371_handle_midi(s);
spin_unlock_irqrestore(&s->lock, flags);
s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
mutex_unlock(&s->open_mutex);
return nonseekable_open(inode, file);
}
static int es1371_midi_release(struct inode *inode, struct file *file)
{
struct es1371_state *s = (struct es1371_state *)file->private_data;
DECLARE_WAITQUEUE(wait, current);
unsigned long flags;
unsigned count, tmo;
VALIDATE_STATE(s);
lock_kernel();
if (file->f_mode & FMODE_WRITE) {
add_wait_queue(&s->midi.owait, &wait);
for (;;) {
__set_current_state(TASK_INTERRUPTIBLE);
spin_lock_irqsave(&s->lock, flags);
count = s->midi.ocnt;
spin_unlock_irqrestore(&s->lock, flags);
if (count <= 0)
break;
if (signal_pending(current))
break;
if (file->f_flags & O_NONBLOCK)
break;
tmo = (count * HZ) / 3100;
if (!schedule_timeout(tmo ? : 1) && tmo)
printk(KERN_DEBUG PFX "midi timed out??\n");
}
remove_wait_queue(&s->midi.owait, &wait);
set_current_state(TASK_RUNNING);
}
mutex_lock(&s->open_mutex);
s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
spin_lock_irqsave(&s->lock, flags);
if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
s->ctrl &= ~CTRL_UART_EN;
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
}
spin_unlock_irqrestore(&s->lock, flags);
mutex_unlock(&s->open_mutex);
wake_up(&s->open_wait);
unlock_kernel();
return 0;
}
static /*const*/ struct file_operations es1371_midi_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.read = es1371_midi_read,
.write = es1371_midi_write,
.poll = es1371_midi_poll,
.open = es1371_midi_open,
.release = es1371_midi_release,
};
/* --------------------------------------------------------------------- */
/*
* for debugging purposes, we'll create a proc device that dumps the
* CODEC chipstate
*/
#ifdef ES1371_DEBUG
static int proc_es1371_dump (char *buf, char **start, off_t fpos, int length, int *eof, void *data)
{
struct es1371_state *s;
int cnt, len = 0;
if (list_empty(&devs))
return 0;
s = list_entry(devs.next, struct es1371_state, devs);
/* print out header */
len += sprintf(buf + len, "\t\tCreative ES137x Debug Dump-o-matic\n");
/* print out CODEC state */
len += sprintf (buf + len, "AC97 CODEC state\n");
for (cnt=0; cnt <= 0x7e; cnt = cnt +2)
len+= sprintf (buf + len, "reg:0x%02x val:0x%04x\n", cnt, rdcodec(s->codec, cnt));
if (fpos >=len){
*start = buf;
*eof =1;
return 0;
}
*start = buf + fpos;
if ((len -= fpos) > length)
return length;
*eof =1;
return len;
}
#endif /* ES1371_DEBUG */
/* --------------------------------------------------------------------- */
/* maximum number of devices; only used for command line params */
#define NR_DEVICE 5
static int spdif[NR_DEVICE];
static int nomix[NR_DEVICE];
static int amplifier[NR_DEVICE];
static unsigned int devindex;
module_param_array(spdif, bool, NULL, 0);
MODULE_PARM_DESC(spdif, "if 1 the output is in S/PDIF digital mode");
module_param_array(nomix, bool, NULL, 0);
MODULE_PARM_DESC(nomix, "if 1 no analog audio is mixed to the digital output");
module_param_array(amplifier, bool, NULL, 0);
MODULE_PARM_DESC(amplifier, "Set to 1 if the machine needs the amp control enabling (many laptops)");
MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu");
MODULE_DESCRIPTION("ES1371 AudioPCI97 Driver");
MODULE_LICENSE("GPL");
/* --------------------------------------------------------------------- */
static struct initvol {
int mixch;
int vol;
} initvol[] __devinitdata = {
{ SOUND_MIXER_WRITE_LINE, 0x4040 },
{ SOUND_MIXER_WRITE_CD, 0x4040 },
{ MIXER_WRITE(SOUND_MIXER_VIDEO), 0x4040 },
{ SOUND_MIXER_WRITE_LINE1, 0x4040 },
{ SOUND_MIXER_WRITE_PCM, 0x4040 },
{ SOUND_MIXER_WRITE_VOLUME, 0x4040 },
{ MIXER_WRITE(SOUND_MIXER_PHONEOUT), 0x4040 },
{ SOUND_MIXER_WRITE_OGAIN, 0x4040 },
{ MIXER_WRITE(SOUND_MIXER_PHONEIN), 0x4040 },
{ SOUND_MIXER_WRITE_SPEAKER, 0x4040 },
{ SOUND_MIXER_WRITE_MIC, 0x4040 },
{ SOUND_MIXER_WRITE_RECLEV, 0x4040 },
{ SOUND_MIXER_WRITE_IGAIN, 0x4040 }
};
static struct
{
short svid, sdid;
} amplifier_needed[] =
{
{ 0x107B, 0x2150 }, /* Gateway Solo 2150 */
{ 0x13BD, 0x100C }, /* Mebius PC-MJ100V */
{ 0x1102, 0x5938 }, /* Targa Xtender 300 */
{ 0x1102, 0x8938 }, /* IPC notebook */
{ PCI_ANY_ID, PCI_ANY_ID }
};
#ifdef SUPPORT_JOYSTICK
static int __devinit es1371_register_gameport(struct es1371_state *s)
{
struct gameport *gp;
int gpio;
for (gpio = 0x218; gpio >= 0x200; gpio -= 0x08)
if (request_region(gpio, JOY_EXTENT, "es1371"))
break;
if (gpio < 0x200) {
printk(KERN_ERR PFX "no free joystick address found\n");
return -EBUSY;
}
s->gameport = gp = gameport_allocate_port();
if (!gp) {
printk(KERN_ERR PFX "can not allocate memory for gameport\n");
release_region(gpio, JOY_EXTENT);
return -ENOMEM;
}
gameport_set_name(gp, "ESS1371 Gameport");
gameport_set_phys(gp, "isa%04x/gameport0", gpio);
gp->dev.parent = &s->dev->dev;
gp->io = gpio;
s->ctrl |= CTRL_JYSTK_EN | (((gpio >> 3) & CTRL_JOY_MASK) << CTRL_JOY_SHIFT);
outl(s->ctrl, s->io + ES1371_REG_CONTROL);
gameport_register_port(gp);
return 0;
}
static inline void es1371_unregister_gameport(struct es1371_state *s)
{
if (s->gameport) {
int gpio = s->gameport->io;
gameport_unregister_port(s->gameport);
release_region(gpio, JOY_EXTENT);
}
}
#else
static inline int es1371_register_gameport(struct es1371_state *s) { return -ENOSYS; }
static inline void es1371_unregister_gameport(struct es1371_state *s) { }
#endif /* SUPPORT_JOYSTICK */
static int __devinit es1371_probe(struct pci_dev *pcidev, const struct pci_device_id *pciid)
{
struct es1371_state *s;
mm_segment_t fs;
int i, val, res = -1;
int idx;
unsigned long tmo;
signed long tmo2;
unsigned int cssr;
if ((res=pci_enable_device(pcidev)))
return res;
if (!(pci_resource_flags(pcidev, 0) & IORESOURCE_IO))
return -ENODEV;
if (pcidev->irq == 0)
return -ENODEV;
i = pci_set_dma_mask(pcidev, DMA_32BIT_MASK);
if (i) {
printk(KERN_WARNING "es1371: architecture does not support 32bit PCI busmaster DMA\n");
return i;
}
if (!(s = kzalloc(sizeof(struct es1371_state), GFP_KERNEL))) {
printk(KERN_WARNING PFX "out of memory\n");
return -ENOMEM;
}
s->codec = ac97_alloc_codec();
if(s->codec == NULL)
goto err_codec;
init_waitqueue_head(&s->dma_adc.wait);
init_waitqueue_head(&s->dma_dac1.wait);
init_waitqueue_head(&s->dma_dac2.wait);
init_waitqueue_head(&s->open_wait);
init_waitqueue_head(&s->midi.iwait);
init_waitqueue_head(&s->midi.owait);
mutex_init(&s->open_mutex);
spin_lock_init(&s->lock);
s->magic = ES1371_MAGIC;
s->dev = pcidev;
s->io = pci_resource_start(pcidev, 0);
s->irq = pcidev->irq;
s->vendor = pcidev->vendor;
s->device = pcidev->device;
pci_read_config_byte(pcidev, PCI_REVISION_ID, &s->rev);
s->codec->private_data = s;
s->codec->id = 0;
s->codec->codec_read = rdcodec;
s->codec->codec_write = wrcodec;
printk(KERN_INFO PFX "found chip, vendor id 0x%04x device id 0x%04x revision 0x%02x\n",
s->vendor, s->device, s->rev);
if (!request_region(s->io, ES1371_EXTENT, "es1371")) {
printk(KERN_ERR PFX "io ports %#lx-%#lx in use\n", s->io, s->io+ES1371_EXTENT-1);
res = -EBUSY;
goto err_region;
}
if ((res=request_irq(s->irq, es1371_interrupt, IRQF_SHARED, "es1371",s))) {
printk(KERN_ERR PFX "irq %u in use\n", s->irq);
goto err_irq;
}
printk(KERN_INFO PFX "found es1371 rev %d at io %#lx irq %u\n",
s->rev, s->io, s->irq);
/* register devices */
if ((res=(s->dev_audio = register_sound_dsp(&es1371_audio_fops,-1)))<0)
goto err_dev1;
if ((res=(s->codec->dev_mixer = register_sound_mixer(&es1371_mixer_fops, -1))) < 0)
goto err_dev2;
if ((res=(s->dev_dac = register_sound_dsp(&es1371_dac_fops, -1))) < 0)
goto err_dev3;
if ((res=(s->dev_midi = register_sound_midi(&es1371_midi_fops, -1)))<0 )
goto err_dev4;
#ifdef ES1371_DEBUG
/* initialize the debug proc device */
s->ps = create_proc_read_entry("es1371",0,NULL,proc_es1371_dump,NULL);
#endif /* ES1371_DEBUG */
/* initialize codec registers */
s->ctrl = 0;
/* Check amplifier requirements */
if (amplifier[devindex])
s->ctrl |= CTRL_GPIO_OUT0;
else for(idx = 0; amplifier_needed[idx].svid != PCI_ANY_ID; idx++)
{
if(pcidev->subsystem_vendor == amplifier_needed[idx].svid &&
pcidev->subsystem_device == amplifier_needed[idx].sdid)
{
s->ctrl |= CTRL_GPIO_OUT0; /* turn internal amplifier on */
printk(KERN_INFO PFX "Enabling internal amplifier.\n");
}
}
s->sctrl = 0;
cssr = 0;
s->spdif_volume = -1;
/* check to see if s/pdif mode is being requested */
if (spdif[devindex]) {
if (s->rev >= 4) {
printk(KERN_INFO PFX "enabling S/PDIF output\n");
s->spdif_volume = 0;
cssr |= STAT_EN_SPDIF;
s->ctrl |= CTRL_SPDIFEN_B;
if (nomix[devindex]) /* don't mix analog inputs to s/pdif output */
s->ctrl |= CTRL_RECEN_B;
} else {
printk(KERN_ERR PFX "revision %d does not support S/PDIF\n", s->rev);
}
}
/* initialize the chips */
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
outl(s->sctrl, s->io+ES1371_REG_SERIAL_CONTROL);
outl(LEGACY_JFAST, s->io+ES1371_REG_LEGACY);
pci_set_master(pcidev); /* enable bus mastering */
/* if we are a 5880 turn on the AC97 */
if (s->vendor == PCI_VENDOR_ID_ENSONIQ &&
((s->device == PCI_DEVICE_ID_ENSONIQ_CT5880 && s->rev >= CT5880REV_CT5880_C) ||
(s->device == PCI_DEVICE_ID_ENSONIQ_ES1371 && s->rev == ES1371REV_CT5880_A) ||
(s->device == PCI_DEVICE_ID_ENSONIQ_ES1371 && s->rev == ES1371REV_ES1373_8))) {
cssr |= CSTAT_5880_AC97_RST;
outl(cssr, s->io+ES1371_REG_STATUS);
/* need to delay around 20ms(bleech) to give
some CODECs enough time to wakeup */
tmo = jiffies + (HZ / 50) + 1;
for (;;) {
tmo2 = tmo - jiffies;
if (tmo2 <= 0)
break;
schedule_timeout(tmo2);
}
}
/* AC97 warm reset to start the bitclk */
outl(s->ctrl | CTRL_SYNCRES, s->io+ES1371_REG_CONTROL);
udelay(2);
outl(s->ctrl, s->io+ES1371_REG_CONTROL);
/* init the sample rate converter */
src_init(s);
/* codec init */
if (!ac97_probe_codec(s->codec)) {
res = -ENODEV;
goto err_gp;
}
/* set default values */
fs = get_fs();
set_fs(KERNEL_DS);
val = SOUND_MASK_LINE;
mixdev_ioctl(s->codec, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
for (i = 0; i < ARRAY_SIZE(initvol); i++) {
val = initvol[i].vol;
mixdev_ioctl(s->codec, initvol[i].mixch, (unsigned long)&val);
}
/* mute master and PCM when in S/PDIF mode */
if (s->spdif_volume != -1) {
val = 0x0000;
s->codec->mixer_ioctl(s->codec, SOUND_MIXER_WRITE_VOLUME, (unsigned long)&val);
s->codec->mixer_ioctl(s->codec, SOUND_MIXER_WRITE_PCM, (unsigned long)&val);
}
set_fs(fs);
/* turn on S/PDIF output driver if requested */
outl(cssr, s->io+ES1371_REG_STATUS);
es1371_register_gameport(s);
/* store it in the driver field */
pci_set_drvdata(pcidev, s);
/* put it into driver list */
list_add_tail(&s->devs, &devs);
/* increment devindex */
if (devindex < NR_DEVICE-1)
devindex++;
return 0;
err_gp:
#ifdef ES1371_DEBUG
if (s->ps)
remove_proc_entry("es1371", NULL);
#endif
unregister_sound_midi(s->dev_midi);
err_dev4:
unregister_sound_dsp(s->dev_dac);
err_dev3:
unregister_sound_mixer(s->codec->dev_mixer);
err_dev2:
unregister_sound_dsp(s->dev_audio);
err_dev1:
printk(KERN_ERR PFX "cannot register misc device\n");
free_irq(s->irq, s);
err_irq:
release_region(s->io, ES1371_EXTENT);
err_region:
err_codec:
ac97_release_codec(s->codec);
kfree(s);
return res;
}
static void __devexit es1371_remove(struct pci_dev *dev)
{
struct es1371_state *s = pci_get_drvdata(dev);
if (!s)
return;
list_del(&s->devs);
#ifdef ES1371_DEBUG
if (s->ps)
remove_proc_entry("es1371", NULL);
#endif /* ES1371_DEBUG */
outl(0, s->io+ES1371_REG_CONTROL); /* switch everything off */
outl(0, s->io+ES1371_REG_SERIAL_CONTROL); /* clear serial interrupts */
synchronize_irq(s->irq);
free_irq(s->irq, s);
es1371_unregister_gameport(s);
release_region(s->io, ES1371_EXTENT);
unregister_sound_dsp(s->dev_audio);
unregister_sound_mixer(s->codec->dev_mixer);
unregister_sound_dsp(s->dev_dac);
unregister_sound_midi(s->dev_midi);
ac97_release_codec(s->codec);
kfree(s);
pci_set_drvdata(dev, NULL);
}
static struct pci_device_id id_table[] = {
{ PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_ES1371, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
{ PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_CT5880, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
{ PCI_VENDOR_ID_ECTIVA, PCI_DEVICE_ID_ECTIVA_EV1938, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
{ 0, }
};
MODULE_DEVICE_TABLE(pci, id_table);
static struct pci_driver es1371_driver = {
.name = "es1371",
.id_table = id_table,
.probe = es1371_probe,
.remove = __devexit_p(es1371_remove),
};
static int __init init_es1371(void)
{
printk(KERN_INFO PFX "version v0.32 time " __TIME__ " " __DATE__ "\n");
return pci_register_driver(&es1371_driver);
}
static void __exit cleanup_es1371(void)
{
printk(KERN_INFO PFX "unloading\n");
pci_unregister_driver(&es1371_driver);
}
module_init(init_es1371);
module_exit(cleanup_es1371);
/* --------------------------------------------------------------------- */
#ifndef MODULE
/* format is: es1371=[spdif,[nomix,[amplifier]]] */
static int __init es1371_setup(char *str)
{
static unsigned __initdata nr_dev = 0;
if (nr_dev >= NR_DEVICE)
return 0;
(void)
((get_option(&str, &spdif[nr_dev]) == 2)
&& (get_option(&str, &nomix[nr_dev]) == 2)
&& (get_option(&str, &amplifier[nr_dev])));
nr_dev++;
return 1;
}
__setup("es1371=", es1371_setup);
#endif /* MODULE */
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