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linux-next/sound/oss/es1371.c
Jeff Garzik c7bec5aba5 Various drivers' irq handlers: kill dead code, needless casts 
- Eliminate casts to/from void*

- Eliminate checks for conditions that never occur.  These typically
  fall into two classes:

	1) Checking for 'dev_id == NULL', then it is never called with
	NULL as an argument.

	2) Checking for invalid irq number, when the only caller (the
	system) guarantees the irq handler is called with the proper
	'irq' number argument.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-10-06 15:00:58 -04:00

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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 M<>ller <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 <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 = kmalloc(sizeof(struct es1371_state), GFP_KERNEL))) {
printk(KERN_WARNING PFX "out of memory\n");
return -ENOMEM;
}
memset(s, 0, sizeof(struct es1371_state));
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 < sizeof(initvol)/sizeof(initvol[0]); 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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