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linux/sound/oss/cs46xx.c
David Howells 7d12e780e0 IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.

Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 15:10:12 +01:00

5447 lines
157 KiB
C
Raw Blame History

/*
* Crystal SoundFusion CS46xx driver
*
* Copyright 1998-2001 Cirrus Logic Corporation <pcaudio@crystal.cirrus.com>
* <twoller@crystal.cirrus.com>
* Copyright 1999-2000 Jaroslav Kysela <perex@suse.cz>
* Copyright 2000 Alan Cox <alan@redhat.com>
*
* The core of this code is taken from the ALSA project driver by
* Jaroslav. Please send Jaroslav the credit for the driver and
* report bugs in this port to <alan@redhat.com>
*
* 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.
* Current maintainers:
* Cirrus Logic Corporation, Thomas Woller (tw)
* <twoller@crystal.cirrus.com>
* Nils Faerber (nf)
* <nils@kernelconcepts.de>
* Thanks to David Pollard for testing.
*
* Changes:
* 20000909-nf Changed cs_read, cs_write and drain_dac
* 20001025-tw Separate Playback/Capture structs and buffers.
* Added Scatter/Gather support for Playback.
* Added Capture.
* 20001027-nf Port to kernel 2.4.0-test9, some clean-ups
* Start of powermanagement support (CS46XX_PM).
* 20001128-tw Add module parm for default buffer order.
* added DMA_GFP flag to kmalloc dma buffer allocs.
* backfill silence to eliminate stuttering on
* underruns.
* 20001201-tw add resyncing of swptr on underruns.
* 20001205-tw-nf fixed GETOSPACE ioctl() after open()
* 20010113-tw patch from Hans Grobler general cleanup.
* 20010117-tw 2.4.0 pci cleanup, wrapper code for 2.2.16-2.4.0
* 20010118-tw basic PM support for 2.2.16+ and 2.4.0/2.4.2.
* 20010228-dh patch from David Huggins - cs_update_ptr recursion.
* 20010409-tw add hercules game theatre XP amp code.
* 20010420-tw cleanup powerdown/up code.
* 20010521-tw eliminate pops, and fixes for powerdown.
* 20010525-tw added fixes for thinkpads with powerdown logic.
* 20010723-sh patch from Horms (Simon Horman) -
* SOUND_PCM_READ_BITS returns bits as set in driver
* rather than a logical or of the possible values.
* Various ioctls handle the case where the device
* is open for reading or writing but not both better.
*
* Status:
* Playback/Capture supported from 8k-48k.
* 16Bit Signed LE & 8Bit Unsigned, with Mono or Stereo supported.
*
* APM/PM - 2.2.x APM is enabled and functioning fine. APM can also
* be enabled for 2.4.x by modifying the CS46XX_ACPI_SUPPORT macro
* definition.
*
* Hercules Game Theatre XP - the EGPIO2 pin controls the external Amp,
* so, use the drain/polarity to enable.
* hercules_egpio_disable set to 1, will force a 0 to EGPIODR.
*
* VTB Santa Cruz - the GPIO7/GPIO8 on the Secondary Codec control
* the external amplifier for the "back" speakers, since we do not
* support the secondary codec then this external amp is also not
* turned on.
*/
#include <linux/interrupt.h>
#include <linux/list.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/bitops.h>
#include <linux/init.h>
#include <linux/poll.h>
#include <linux/ac97_codec.h>
#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/dma.h>
#include <asm/uaccess.h>
#include "cs46xxpm.h"
#include "cs46xx_wrapper-24.h"
#include "cs461x.h"
/* MIDI buffer sizes */
#define CS_MIDIINBUF 500
#define CS_MIDIOUTBUF 500
#define ADC_RUNNING 1
#define DAC_RUNNING 2
#define CS_FMT_16BIT 1 /* These are fixed in fact */
#define CS_FMT_STEREO 2
#define CS_FMT_MASK 3
#define CS_TYPE_ADC 1
#define CS_TYPE_DAC 2
#define CS_TRUE 1
#define CS_FALSE 0
#define CS_INC_USE_COUNT(m) (atomic_inc(m))
#define CS_DEC_USE_COUNT(m) (atomic_dec(m))
#define CS_DEC_AND_TEST(m) (atomic_dec_and_test(m))
#define CS_IN_USE(m) (atomic_read(m) != 0)
#define CS_DBGBREAKPOINT {__asm__("INT $3");}
/*
* CS461x definitions
*/
#define CS461X_BA0_SIZE 0x2000
#define CS461X_BA1_DATA0_SIZE 0x3000
#define CS461X_BA1_DATA1_SIZE 0x3800
#define CS461X_BA1_PRG_SIZE 0x7000
#define CS461X_BA1_REG_SIZE 0x0100
#define GOF_PER_SEC 200
#define CSDEBUG_INTERFACE 1
#define CSDEBUG 1
/*
* Turn on/off debugging compilation by using 1/0 respectively for CSDEBUG
*
*
* CSDEBUG is usual mode is set to 1, then use the
* cs_debuglevel and cs_debugmask to turn on or off debugging.
* Debug level of 1 has been defined to be kernel errors and info
* that should be printed on any released driver.
*/
#if CSDEBUG
#define CS_DBGOUT(mask,level,x) if ((cs_debuglevel >= (level)) && ((mask) & cs_debugmask)) {x;}
#else
#define CS_DBGOUT(mask,level,x)
#endif
/*
* cs_debugmask areas
*/
#define CS_INIT 0x00000001 /* initialization and probe functions */
#define CS_ERROR 0x00000002 /* tmp debugging bit placeholder */
#define CS_INTERRUPT 0x00000004 /* interrupt handler (separate from all other) */
#define CS_FUNCTION 0x00000008 /* enter/leave functions */
#define CS_WAVE_WRITE 0x00000010 /* write information for wave */
#define CS_WAVE_READ 0x00000020 /* read information for wave */
#define CS_MIDI_WRITE 0x00000040 /* write information for midi */
#define CS_MIDI_READ 0x00000080 /* read information for midi */
#define CS_MPU401_WRITE 0x00000100 /* write information for mpu401 */
#define CS_MPU401_READ 0x00000200 /* read information for mpu401 */
#define CS_OPEN 0x00000400 /* all open functions in the driver */
#define CS_RELEASE 0x00000800 /* all release functions in the driver */
#define CS_PARMS 0x00001000 /* functional and operational parameters */
#define CS_IOCTL 0x00002000 /* ioctl (non-mixer) */
#define CS_PM 0x00004000 /* PM */
#define CS_TMP 0x10000000 /* tmp debug mask bit */
#define CS_IOCTL_CMD_SUSPEND 0x1 // suspend
#define CS_IOCTL_CMD_RESUME 0x2 // resume
#if CSDEBUG
static unsigned long cs_debuglevel = 1; /* levels range from 1-9 */
module_param(cs_debuglevel, ulong, 0644);
static unsigned long cs_debugmask = CS_INIT | CS_ERROR; /* use CS_DBGOUT with various mask values */
module_param(cs_debugmask, ulong, 0644);
#endif
static unsigned long hercules_egpio_disable; /* if non-zero set all EGPIO to 0 */
module_param(hercules_egpio_disable, ulong, 0);
static unsigned long initdelay = 700; /* PM delay in millisecs */
module_param(initdelay, ulong, 0);
static unsigned long powerdown = -1; /* turn on/off powerdown processing in driver */
module_param(powerdown, ulong, 0);
#define DMABUF_DEFAULTORDER 3
static unsigned long defaultorder = DMABUF_DEFAULTORDER;
module_param(defaultorder, ulong, 0);
static int external_amp;
module_param(external_amp, bool, 0);
static int thinkpad;
module_param(thinkpad, bool, 0);
/*
* set the powerdown module parm to 0 to disable all
* powerdown. also set thinkpad to 1 to disable powerdown,
* but also to enable the clkrun functionality.
*/
static unsigned cs_powerdown = 1;
static unsigned cs_laptop_wait = 1;
/* An instance of the 4610 channel */
struct cs_channel
{
int used;
int num;
void *state;
};
#define CS46XX_MAJOR_VERSION "1"
#define CS46XX_MINOR_VERSION "28"
#ifdef __ia64__
#define CS46XX_ARCH "64" //architecture key
#else
#define CS46XX_ARCH "32" //architecture key
#endif
static struct list_head cs46xx_devs = { &cs46xx_devs, &cs46xx_devs };
/* magic numbers to protect our data structures */
#define CS_CARD_MAGIC 0x43525553 /* "CRUS" */
#define CS_STATE_MAGIC 0x4c4f4749 /* "LOGI" */
#define NR_HW_CH 3
/* maxinum number of AC97 codecs connected, AC97 2.0 defined 4 */
#define NR_AC97 2
static const unsigned sample_size[] = { 1, 2, 2, 4 };
static const unsigned sample_shift[] = { 0, 1, 1, 2 };
/* "software" or virtual channel, an instance of opened /dev/dsp */
struct cs_state {
unsigned int magic;
struct cs_card *card; /* Card info */
/* single open lock mechanism, only used for recording */
struct mutex open_mutex;
wait_queue_head_t open_wait;
/* file mode */
mode_t open_mode;
/* virtual channel number */
int virt;
struct dmabuf {
/* wave sample stuff */
unsigned int rate;
unsigned char fmt, enable;
/* hardware channel */
struct cs_channel *channel;
int pringbuf; /* Software ring slot */
void *pbuf; /* 4K hardware DMA buffer */
/* OSS buffer management stuff */
void *rawbuf;
dma_addr_t dma_handle;
unsigned buforder;
unsigned numfrag;
unsigned fragshift;
unsigned divisor;
unsigned type;
void *tmpbuff; /* tmp buffer for sample conversions */
dma_addr_t dmaaddr;
dma_addr_t dmaaddr_tmpbuff;
unsigned buforder_tmpbuff; /* Log base 2 of size in bytes.. */
/* our buffer acts like a circular ring */
unsigned hwptr; /* where dma last started, updated by update_ptr */
unsigned swptr; /* where driver last clear/filled, updated by read/write */
int count; /* bytes to be comsumed or been generated by dma machine */
unsigned total_bytes; /* total bytes dmaed by hardware */
unsigned blocks; /* total blocks */
unsigned error; /* number of over/underruns */
unsigned underrun; /* underrun pending before next write has occurred */
wait_queue_head_t wait; /* put process on wait queue when no more space in buffer */
/* redundant, but makes calculations easier */
unsigned fragsize;
unsigned dmasize;
unsigned fragsamples;
/* OSS stuff */
unsigned mapped:1;
unsigned ready:1;
unsigned endcleared:1;
unsigned SGok:1;
unsigned update_flag;
unsigned ossfragshift;
int ossmaxfrags;
unsigned subdivision;
} dmabuf;
/* Guard against mmap/write/read races */
struct mutex sem;
};
struct cs_card {
struct cs_channel channel[2];
unsigned int magic;
/* We keep cs461x cards in a linked list */
struct cs_card *next;
/* The cs461x has a certain amount of cross channel interaction
so we use a single per card lock */
spinlock_t lock;
/* Keep AC97 sane */
spinlock_t ac97_lock;
/* mixer use count */
atomic_t mixer_use_cnt;
/* PCI device stuff */
struct pci_dev *pci_dev;
struct list_head list;
unsigned int pctl, cctl; /* Hardware DMA flag sets */
/* soundcore stuff */
int dev_audio;
int dev_midi;
/* structures for abstraction of hardware facilities, codecs, banks and channels*/
struct ac97_codec *ac97_codec[NR_AC97];
struct cs_state *states[2];
u16 ac97_features;
int amplifier; /* Amplifier control */
void (*amplifier_ctrl)(struct cs_card *, int);
void (*amp_init)(struct cs_card *);
int active; /* Active clocking */
void (*active_ctrl)(struct cs_card *, int);
/* hardware resources */
unsigned long ba0_addr;
unsigned long ba1_addr;
u32 irq;
/* mappings */
void __iomem *ba0;
union
{
struct
{
u8 __iomem *data0;
u8 __iomem *data1;
u8 __iomem *pmem;
u8 __iomem *reg;
} name;
u8 __iomem *idx[4];
} ba1;
/* Function support */
struct cs_channel *(*alloc_pcm_channel)(struct cs_card *);
struct cs_channel *(*alloc_rec_pcm_channel)(struct cs_card *);
void (*free_pcm_channel)(struct cs_card *, int chan);
/* /dev/midi stuff */
struct {
unsigned ird, iwr, icnt;
unsigned ord, owr, ocnt;
wait_queue_head_t open_wait;
wait_queue_head_t iwait;
wait_queue_head_t owait;
spinlock_t lock;
unsigned char ibuf[CS_MIDIINBUF];
unsigned char obuf[CS_MIDIOUTBUF];
mode_t open_mode;
struct mutex open_mutex;
} midi;
struct cs46xx_pm pm;
};
static int cs_open_mixdev(struct inode *inode, struct file *file);
static int cs_release_mixdev(struct inode *inode, struct file *file);
static int cs_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg);
static int cs_hardware_init(struct cs_card *card);
static int cs46xx_powerup(struct cs_card *card, unsigned int type);
static int cs461x_powerdown(struct cs_card *card, unsigned int type, int suspendflag);
static void cs461x_clear_serial_FIFOs(struct cs_card *card, int type);
#ifdef CONFIG_PM
static int cs46xx_suspend_tbl(struct pci_dev *pcidev, pm_message_t state);
static int cs46xx_resume_tbl(struct pci_dev *pcidev);
#endif
#if CSDEBUG
/* DEBUG ROUTINES */
#define SOUND_MIXER_CS_GETDBGLEVEL _SIOWR('M',120, int)
#define SOUND_MIXER_CS_SETDBGLEVEL _SIOWR('M',121, int)
#define SOUND_MIXER_CS_GETDBGMASK _SIOWR('M',122, int)
#define SOUND_MIXER_CS_SETDBGMASK _SIOWR('M',123, int)
#define SOUND_MIXER_CS_APM _SIOWR('M',124, int)
static void printioctl(unsigned int x)
{
unsigned int i;
unsigned char vidx;
/* these values are incorrect for the ac97 driver, fix.
* Index of mixtable1[] member is Device ID
* and must be <= SOUND_MIXER_NRDEVICES.
* Value of array member is index into s->mix.vol[]
*/
static const unsigned char mixtable1[SOUND_MIXER_NRDEVICES] = {
[SOUND_MIXER_PCM] = 1, /* voice */
[SOUND_MIXER_LINE1] = 2, /* AUX */
[SOUND_MIXER_CD] = 3, /* CD */
[SOUND_MIXER_LINE] = 4, /* Line */
[SOUND_MIXER_SYNTH] = 5, /* FM */
[SOUND_MIXER_MIC] = 6, /* Mic */
[SOUND_MIXER_SPEAKER] = 7, /* Speaker */
[SOUND_MIXER_RECLEV] = 8, /* Recording level */
[SOUND_MIXER_VOLUME] = 9 /* Master Volume */
};
switch (x) {
case SOUND_MIXER_CS_GETDBGMASK:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_GETDBGMASK: ") );
break;
case SOUND_MIXER_CS_GETDBGLEVEL:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_GETDBGLEVEL: ") );
break;
case SOUND_MIXER_CS_SETDBGMASK:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_SETDBGMASK: ") );
break;
case SOUND_MIXER_CS_SETDBGLEVEL:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_SETDBGLEVEL: ") );
break;
case OSS_GETVERSION:
CS_DBGOUT(CS_IOCTL, 4, printk("OSS_GETVERSION: ") );
break;
case SNDCTL_DSP_SYNC:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SYNC: ") );
break;
case SNDCTL_DSP_SETDUPLEX:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETDUPLEX: ") );
break;
case SNDCTL_DSP_GETCAPS:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETCAPS: ") );
break;
case SNDCTL_DSP_RESET:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_RESET: ") );
break;
case SNDCTL_DSP_SPEED:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SPEED: ") );
break;
case SNDCTL_DSP_STEREO:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_STEREO: ") );
break;
case SNDCTL_DSP_CHANNELS:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_CHANNELS: ") );
break;
case SNDCTL_DSP_GETFMTS:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETFMTS: ") );
break;
case SNDCTL_DSP_SETFMT:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETFMT: ") );
break;
case SNDCTL_DSP_POST:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_POST: ") );
break;
case SNDCTL_DSP_GETTRIGGER:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETTRIGGER: ") );
break;
case SNDCTL_DSP_SETTRIGGER:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETTRIGGER: ") );
break;
case SNDCTL_DSP_GETOSPACE:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOSPACE: ") );
break;
case SNDCTL_DSP_GETISPACE:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETISPACE: ") );
break;
case SNDCTL_DSP_NONBLOCK:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_NONBLOCK: ") );
break;
case SNDCTL_DSP_GETODELAY:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETODELAY: ") );
break;
case SNDCTL_DSP_GETIPTR:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETIPTR: ") );
break;
case SNDCTL_DSP_GETOPTR:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOPTR: ") );
break;
case SNDCTL_DSP_GETBLKSIZE:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETBLKSIZE: ") );
break;
case SNDCTL_DSP_SETFRAGMENT:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETFRAGMENT: ") );
break;
case SNDCTL_DSP_SUBDIVIDE:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SUBDIVIDE: ") );
break;
case SOUND_PCM_READ_RATE:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_RATE: ") );
break;
case SOUND_PCM_READ_CHANNELS:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_CHANNELS: ") );
break;
case SOUND_PCM_READ_BITS:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_BITS: ") );
break;
case SOUND_PCM_WRITE_FILTER:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_WRITE_FILTER: ") );
break;
case SNDCTL_DSP_SETSYNCRO:
CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETSYNCRO: ") );
break;
case SOUND_PCM_READ_FILTER:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_FILTER: ") );
break;
case SOUND_MIXER_PRIVATE1:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE1: ") );
break;
case SOUND_MIXER_PRIVATE2:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE2: ") );
break;
case SOUND_MIXER_PRIVATE3:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE3: ") );
break;
case SOUND_MIXER_PRIVATE4:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE4: ") );
break;
case SOUND_MIXER_PRIVATE5:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE5: ") );
break;
case SOUND_MIXER_INFO:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_INFO: ") );
break;
case SOUND_OLD_MIXER_INFO:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_OLD_MIXER_INFO: ") );
break;
default:
switch (_IOC_NR(x)) {
case SOUND_MIXER_VOLUME:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_VOLUME: ") );
break;
case SOUND_MIXER_SPEAKER:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_SPEAKER: ") );
break;
case SOUND_MIXER_RECLEV:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_RECLEV: ") );
break;
case SOUND_MIXER_MIC:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_MIC: ") );
break;
case SOUND_MIXER_SYNTH:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_SYNTH: ") );
break;
case SOUND_MIXER_RECSRC:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_RECSRC: ") );
break;
case SOUND_MIXER_DEVMASK:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_DEVMASK: ") );
break;
case SOUND_MIXER_RECMASK:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_RECMASK: ") );
break;
case SOUND_MIXER_STEREODEVS:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_STEREODEVS: ") );
break;
case SOUND_MIXER_CAPS:
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CAPS:") );
break;
default:
i = _IOC_NR(x);
if (i >= SOUND_MIXER_NRDEVICES || !(vidx = mixtable1[i])) {
CS_DBGOUT(CS_IOCTL, 4, printk("UNKNOWN IOCTL: 0x%.8x NR=%d ",x,i) );
} else {
CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_IOCTL AC9x: 0x%.8x NR=%d ",
x,i));
}
break;
}
}
CS_DBGOUT(CS_IOCTL, 4, printk("command = 0x%x IOC_NR=%d\n",x, _IOC_NR(x)) );
}
#endif
/*
* common I/O routines
*/
static void cs461x_poke(struct cs_card *codec, unsigned long reg, unsigned int val)
{
writel(val, codec->ba1.idx[(reg >> 16) & 3] + (reg & 0xffff));
}
static unsigned int cs461x_peek(struct cs_card *codec, unsigned long reg)
{
return readl(codec->ba1.idx[(reg >> 16) & 3] + (reg & 0xffff));
}
static void cs461x_pokeBA0(struct cs_card *codec, unsigned long reg, unsigned int val)
{
writel(val, codec->ba0 + reg);
}
static unsigned int cs461x_peekBA0(struct cs_card *codec, unsigned long reg)
{
return readl(codec->ba0 + reg);
}
static u16 cs_ac97_get(struct ac97_codec *dev, u8 reg);
static void cs_ac97_set(struct ac97_codec *dev, u8 reg, u16 data);
static struct cs_channel *cs_alloc_pcm_channel(struct cs_card *card)
{
if (card->channel[1].used == 1)
return NULL;
card->channel[1].used = 1;
card->channel[1].num = 1;
return &card->channel[1];
}
static struct cs_channel *cs_alloc_rec_pcm_channel(struct cs_card *card)
{
if (card->channel[0].used == 1)
return NULL;
card->channel[0].used = 1;
card->channel[0].num = 0;
return &card->channel[0];
}
static void cs_free_pcm_channel(struct cs_card *card, int channel)
{
card->channel[channel].state = NULL;
card->channel[channel].used = 0;
}
/*
* setup a divisor value to help with conversion from
* 16bit Stereo, down to 8bit stereo/mono or 16bit mono.
* assign a divisor of 1 if using 16bit Stereo as that is
* the only format that the static image will capture.
*/
static void cs_set_divisor(struct dmabuf *dmabuf)
{
if (dmabuf->type == CS_TYPE_DAC)
dmabuf->divisor = 1;
else if (!(dmabuf->fmt & CS_FMT_STEREO) &&
(dmabuf->fmt & CS_FMT_16BIT))
dmabuf->divisor = 2;
else if ((dmabuf->fmt & CS_FMT_STEREO) &&
!(dmabuf->fmt & CS_FMT_16BIT))
dmabuf->divisor = 2;
else if (!(dmabuf->fmt & CS_FMT_STEREO) &&
!(dmabuf->fmt & CS_FMT_16BIT))
dmabuf->divisor = 4;
else
dmabuf->divisor = 1;
CS_DBGOUT(CS_PARMS | CS_FUNCTION, 8, printk(
"cs46xx: cs_set_divisor()- %s %d\n",
(dmabuf->type == CS_TYPE_ADC) ? "ADC" : "DAC",
dmabuf->divisor) );
}
/*
* mute some of the more prevalent registers to avoid popping.
*/
static void cs_mute(struct cs_card *card, int state)
{
struct ac97_codec *dev = card->ac97_codec[0];
CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO "cs46xx: cs_mute()+ %s\n",
(state == CS_TRUE) ? "Muting" : "UnMuting"));
if (state == CS_TRUE) {
/*
* fix pops when powering up on thinkpads
*/
card->pm.u32AC97_master_volume = (u32)cs_ac97_get( dev,
(u8)BA0_AC97_MASTER_VOLUME);
card->pm.u32AC97_headphone_volume = (u32)cs_ac97_get(dev,
(u8)BA0_AC97_HEADPHONE_VOLUME);
card->pm.u32AC97_master_volume_mono = (u32)cs_ac97_get(dev,
(u8)BA0_AC97_MASTER_VOLUME_MONO);
card->pm.u32AC97_pcm_out_volume = (u32)cs_ac97_get(dev,
(u8)BA0_AC97_PCM_OUT_VOLUME);
cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME, 0x8000);
cs_ac97_set(dev, (u8)BA0_AC97_HEADPHONE_VOLUME, 0x8000);
cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME_MONO, 0x8000);
cs_ac97_set(dev, (u8)BA0_AC97_PCM_OUT_VOLUME, 0x8000);
} else {
cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME, card->pm.u32AC97_master_volume);
cs_ac97_set(dev, (u8)BA0_AC97_HEADPHONE_VOLUME, card->pm.u32AC97_headphone_volume);
cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME_MONO, card->pm.u32AC97_master_volume_mono);
cs_ac97_set(dev, (u8)BA0_AC97_PCM_OUT_VOLUME, card->pm.u32AC97_pcm_out_volume);
}
CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO "cs46xx: cs_mute()-\n"));
}
/* set playback sample rate */
static unsigned int cs_set_dac_rate(struct cs_state * state, unsigned int rate)
{
struct dmabuf *dmabuf = &state->dmabuf;
unsigned int tmp1, tmp2;
unsigned int phiIncr;
unsigned int correctionPerGOF, correctionPerSec;
unsigned long flags;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_dac_rate()+ %d\n",rate) );
/*
* Compute the values used to drive the actual sample rate conversion.
* The following formulas are being computed, using inline assembly
* since we need to use 64 bit arithmetic to compute the values:
*
* phiIncr = floor((Fs,in * 2^26) / Fs,out)
* correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
* GOF_PER_SEC)
* ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
* GOF_PER_SEC * correctionPerGOF
*
* i.e.
*
* phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
* correctionPerGOF:correctionPerSec =
* dividend:remainder(ulOther / GOF_PER_SEC)
*/
tmp1 = rate << 16;
phiIncr = tmp1 / 48000;
tmp1 -= phiIncr * 48000;
tmp1 <<= 10;
phiIncr <<= 10;
tmp2 = tmp1 / 48000;
phiIncr += tmp2;
tmp1 -= tmp2 * 48000;
correctionPerGOF = tmp1 / GOF_PER_SEC;
tmp1 -= correctionPerGOF * GOF_PER_SEC;
correctionPerSec = tmp1;
/*
* Fill in the SampleRateConverter control block.
*/
spin_lock_irqsave(&state->card->lock, flags);
cs461x_poke(state->card, BA1_PSRC,
((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
cs461x_poke(state->card, BA1_PPI, phiIncr);
spin_unlock_irqrestore(&state->card->lock, flags);
dmabuf->rate = rate;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_dac_rate()- %d\n",rate) );
return rate;
}
/* set recording sample rate */
static unsigned int cs_set_adc_rate(struct cs_state *state, unsigned int rate)
{
struct dmabuf *dmabuf = &state->dmabuf;
struct cs_card *card = state->card;
unsigned int phiIncr, coeffIncr, tmp1, tmp2;
unsigned int correctionPerGOF, correctionPerSec, initialDelay;
unsigned int frameGroupLength, cnt;
unsigned long flags;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_adc_rate()+ %d\n",rate) );
/*
* We can only decimate by up to a factor of 1/9th the hardware rate.
* Correct the value if an attempt is made to stray outside that limit.
*/
if ((rate * 9) < 48000)
rate = 48000 / 9;
/*
* We can not capture at at rate greater than the Input Rate (48000).
* Return an error if an attempt is made to stray outside that limit.
*/
if (rate > 48000)
rate = 48000;
/*
* Compute the values used to drive the actual sample rate conversion.
* The following formulas are being computed, using inline assembly
* since we need to use 64 bit arithmetic to compute the values:
*
* coeffIncr = -floor((Fs,out * 2^23) / Fs,in)
* phiIncr = floor((Fs,in * 2^26) / Fs,out)
* correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
* GOF_PER_SEC)
* correctionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
* GOF_PER_SEC * correctionPerGOF
* initialDelay = ceil((24 * Fs,in) / Fs,out)
*
* i.e.
*
* coeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in))
* phiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
* correctionPerGOF:correctionPerSec =
* dividend:remainder(ulOther / GOF_PER_SEC)
* initialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out)
*/
tmp1 = rate << 16;
coeffIncr = tmp1 / 48000;
tmp1 -= coeffIncr * 48000;
tmp1 <<= 7;
coeffIncr <<= 7;
coeffIncr += tmp1 / 48000;
coeffIncr ^= 0xFFFFFFFF;
coeffIncr++;
tmp1 = 48000 << 16;
phiIncr = tmp1 / rate;
tmp1 -= phiIncr * rate;
tmp1 <<= 10;
phiIncr <<= 10;
tmp2 = tmp1 / rate;
phiIncr += tmp2;
tmp1 -= tmp2 * rate;
correctionPerGOF = tmp1 / GOF_PER_SEC;
tmp1 -= correctionPerGOF * GOF_PER_SEC;
correctionPerSec = tmp1;
initialDelay = ((48000 * 24) + rate - 1) / rate;
/*
* Fill in the VariDecimate control block.
*/
spin_lock_irqsave(&card->lock, flags);
cs461x_poke(card, BA1_CSRC,
((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
cs461x_poke(card, BA1_CCI, coeffIncr);
cs461x_poke(card, BA1_CD,
(((BA1_VARIDEC_BUF_1 + (initialDelay << 2)) << 16) & 0xFFFF0000) | 0x80);
cs461x_poke(card, BA1_CPI, phiIncr);
spin_unlock_irqrestore(&card->lock, flags);
/*
* Figure out the frame group length for the write back task. Basically,
* this is just the factors of 24000 (2^6*3*5^3) that are not present in
* the output sample rate.
*/
frameGroupLength = 1;
for (cnt = 2; cnt <= 64; cnt *= 2) {
if (((rate / cnt) * cnt) != rate)
frameGroupLength *= 2;
}
if (((rate / 3) * 3) != rate) {
frameGroupLength *= 3;
}
for (cnt = 5; cnt <= 125; cnt *= 5) {
if (((rate / cnt) * cnt) != rate)
frameGroupLength *= 5;
}
/*
* Fill in the WriteBack control block.
*/
spin_lock_irqsave(&card->lock, flags);
cs461x_poke(card, BA1_CFG1, frameGroupLength);
cs461x_poke(card, BA1_CFG2, (0x00800000 | frameGroupLength));
cs461x_poke(card, BA1_CCST, 0x0000FFFF);
cs461x_poke(card, BA1_CSPB, ((65536 * rate) / 24000));
cs461x_poke(card, (BA1_CSPB + 4), 0x0000FFFF);
spin_unlock_irqrestore(&card->lock, flags);
dmabuf->rate = rate;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_adc_rate()- %d\n",rate) );
return rate;
}
/* prepare channel attributes for playback */
static void cs_play_setup(struct cs_state *state)
{
struct dmabuf *dmabuf = &state->dmabuf;
struct cs_card *card = state->card;
unsigned int tmp, Count, playFormat;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_play_setup()+\n") );
cs461x_poke(card, BA1_PVOL, 0x80008000);
if (!dmabuf->SGok)
cs461x_poke(card, BA1_PBA, virt_to_bus(dmabuf->pbuf));
Count = 4;
playFormat=cs461x_peek(card, BA1_PFIE);
if ((dmabuf->fmt & CS_FMT_STEREO)) {
playFormat &= ~DMA_RQ_C2_AC_MONO_TO_STEREO;
Count *= 2;
} else
playFormat |= DMA_RQ_C2_AC_MONO_TO_STEREO;
if ((dmabuf->fmt & CS_FMT_16BIT)) {
playFormat &= ~(DMA_RQ_C2_AC_8_TO_16_BIT
| DMA_RQ_C2_AC_SIGNED_CONVERT);
Count *= 2;
} else
playFormat |= (DMA_RQ_C2_AC_8_TO_16_BIT
| DMA_RQ_C2_AC_SIGNED_CONVERT);
cs461x_poke(card, BA1_PFIE, playFormat);
tmp = cs461x_peek(card, BA1_PDTC);
tmp &= 0xfffffe00;
cs461x_poke(card, BA1_PDTC, tmp | --Count);
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_play_setup()-\n") );
}
static struct InitStruct
{
u32 off;
u32 val;
} InitArray[] = { {0x00000040, 0x3fc0000f},
{0x0000004c, 0x04800000},
{0x000000b3, 0x00000780},
{0x000000b7, 0x00000000},
{0x000000bc, 0x07800000},
{0x000000cd, 0x00800000},
};
/*
* "SetCaptureSPValues()" -- Initialize record task values before each
* capture startup.
*/
static void SetCaptureSPValues(struct cs_card *card)
{
unsigned i, offset;
CS_DBGOUT(CS_FUNCTION, 8, printk("cs46xx: SetCaptureSPValues()+\n") );
for (i = 0; i < sizeof(InitArray) / sizeof(struct InitStruct); i++) {
offset = InitArray[i].off*4; /* 8bit to 32bit offset value */
cs461x_poke(card, offset, InitArray[i].val );
}
CS_DBGOUT(CS_FUNCTION, 8, printk("cs46xx: SetCaptureSPValues()-\n") );
}
/* prepare channel attributes for recording */
static void cs_rec_setup(struct cs_state *state)
{
struct cs_card *card = state->card;
struct dmabuf *dmabuf = &state->dmabuf;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_rec_setup()+\n"));
SetCaptureSPValues(card);
/*
* set the attenuation to 0dB
*/
cs461x_poke(card, BA1_CVOL, 0x80008000);
/*
* set the physical address of the capture buffer into the SP
*/
cs461x_poke(card, BA1_CBA, virt_to_bus(dmabuf->rawbuf));
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_rec_setup()-\n") );
}
/* get current playback/recording dma buffer pointer (byte offset from LBA),
called with spinlock held! */
static inline unsigned cs_get_dma_addr(struct cs_state *state)
{
struct dmabuf *dmabuf = &state->dmabuf;
u32 offset;
if ( (!(dmabuf->enable & DAC_RUNNING)) &&
(!(dmabuf->enable & ADC_RUNNING) ) )
{
CS_DBGOUT(CS_ERROR, 2, printk(
"cs46xx: ERROR cs_get_dma_addr(): not enabled \n") );
return 0;
}
/*
* granularity is byte boundary, good part.
*/
if (dmabuf->enable & DAC_RUNNING)
offset = cs461x_peek(state->card, BA1_PBA);
else /* ADC_RUNNING must be set */
offset = cs461x_peek(state->card, BA1_CBA);
CS_DBGOUT(CS_PARMS | CS_FUNCTION, 9,
printk("cs46xx: cs_get_dma_addr() %d\n",offset) );
offset = (u32)bus_to_virt((unsigned long)offset) - (u32)dmabuf->rawbuf;
CS_DBGOUT(CS_PARMS | CS_FUNCTION, 8,
printk("cs46xx: cs_get_dma_addr()- %d\n",offset) );
return offset;
}
static void resync_dma_ptrs(struct cs_state *state)
{
struct dmabuf *dmabuf;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: resync_dma_ptrs()+ \n") );
if (state) {
dmabuf = &state->dmabuf;
dmabuf->hwptr=dmabuf->swptr = 0;
dmabuf->pringbuf = 0;
}
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: resync_dma_ptrs()- \n") );
}
/* Stop recording (lock held) */
static inline void __stop_adc(struct cs_state *state)
{
struct dmabuf *dmabuf = &state->dmabuf;
struct cs_card *card = state->card;
unsigned int tmp;
dmabuf->enable &= ~ADC_RUNNING;
tmp = cs461x_peek(card, BA1_CCTL);
tmp &= 0xFFFF0000;
cs461x_poke(card, BA1_CCTL, tmp );
}
static void stop_adc(struct cs_state *state)
{
unsigned long flags;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: stop_adc()+ \n") );
spin_lock_irqsave(&state->card->lock, flags);
__stop_adc(state);
spin_unlock_irqrestore(&state->card->lock, flags);
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: stop_adc()- \n") );
}
static void start_adc(struct cs_state *state)
{
struct dmabuf *dmabuf = &state->dmabuf;
struct cs_card *card = state->card;
unsigned long flags;
unsigned int tmp;
spin_lock_irqsave(&card->lock, flags);
if (!(dmabuf->enable & ADC_RUNNING) &&
((dmabuf->mapped || dmabuf->count < (signed)dmabuf->dmasize)
&& dmabuf->ready) &&
((card->pm.flags & CS46XX_PM_IDLE) ||
(card->pm.flags & CS46XX_PM_RESUMED)) )
{
dmabuf->enable |= ADC_RUNNING;
cs_set_divisor(dmabuf);
tmp = cs461x_peek(card, BA1_CCTL);
tmp &= 0xFFFF0000;
tmp |= card->cctl;
CS_DBGOUT(CS_FUNCTION, 2, printk(
"cs46xx: start_adc() poke 0x%x \n",tmp) );
cs461x_poke(card, BA1_CCTL, tmp);
}
spin_unlock_irqrestore(&card->lock, flags);
}
/* stop playback (lock held) */
static inline void __stop_dac(struct cs_state *state)
{
struct dmabuf *dmabuf = &state->dmabuf;
struct cs_card *card = state->card;
unsigned int tmp;
dmabuf->enable &= ~DAC_RUNNING;
tmp=cs461x_peek(card, BA1_PCTL);
tmp&=0xFFFF;
cs461x_poke(card, BA1_PCTL, tmp);
}
static void stop_dac(struct cs_state *state)
{
unsigned long flags;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: stop_dac()+ \n") );
spin_lock_irqsave(&state->card->lock, flags);
__stop_dac(state);
spin_unlock_irqrestore(&state->card->lock, flags);
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: stop_dac()- \n") );
}
static void start_dac(struct cs_state *state)
{
struct dmabuf *dmabuf = &state->dmabuf;
struct cs_card *card = state->card;
unsigned long flags;
int tmp;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: start_dac()+ \n") );
spin_lock_irqsave(&card->lock, flags);
if (!(dmabuf->enable & DAC_RUNNING) &&
((dmabuf->mapped || dmabuf->count > 0) && dmabuf->ready) &&
((card->pm.flags & CS46XX_PM_IDLE) ||
(card->pm.flags & CS46XX_PM_RESUMED)) )
{
dmabuf->enable |= DAC_RUNNING;
tmp = cs461x_peek(card, BA1_PCTL);
tmp &= 0xFFFF;
tmp |= card->pctl;
CS_DBGOUT(CS_PARMS, 6, printk(
"cs46xx: start_dac() poke card=%p tmp=0x%.08x addr=%p \n",
card, (unsigned)tmp,
card->ba1.idx[(BA1_PCTL >> 16) & 3]+(BA1_PCTL&0xffff) ) );
cs461x_poke(card, BA1_PCTL, tmp);
}
spin_unlock_irqrestore(&card->lock, flags);
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: start_dac()- \n") );
}
#define DMABUF_MINORDER 1
/*
* allocate DMA buffer, playback and recording buffers are separate.
*/
static int alloc_dmabuf(struct cs_state *state)
{
struct cs_card *card=state->card;
struct dmabuf *dmabuf = &state->dmabuf;
void *rawbuf = NULL;
void *tmpbuff = NULL;
int order;
struct page *map, *mapend;
unsigned long df;
dmabuf->ready = dmabuf->mapped = 0;
dmabuf->SGok = 0;
/*
* check for order within limits, but do not overwrite value.
*/
if ((defaultorder > 1) && (defaultorder < 12))
df = defaultorder;
else
df = 2;
for (order = df; order >= DMABUF_MINORDER; order--)
if ((rawbuf = (void *)pci_alloc_consistent(
card->pci_dev, PAGE_SIZE << order, &dmabuf->dmaaddr)))
break;
if (!rawbuf) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
"cs46xx: alloc_dmabuf(): unable to allocate rawbuf\n"));
return -ENOMEM;
}
dmabuf->buforder = order;
dmabuf->rawbuf = rawbuf;
// Now mark the pages as reserved; otherwise the
// remap_pfn_range() in cs46xx_mmap doesn't work.
// 1. get index to last page in mem_map array for rawbuf.
mapend = virt_to_page(dmabuf->rawbuf +
(PAGE_SIZE << dmabuf->buforder) - 1);
// 2. mark each physical page in range as 'reserved'.
for (map = virt_to_page(dmabuf->rawbuf); map <= mapend; map++)
cs4x_mem_map_reserve(map);
CS_DBGOUT(CS_PARMS, 9, printk("cs46xx: alloc_dmabuf(): allocated %ld (order = %d) bytes at %p\n",
PAGE_SIZE << order, order, rawbuf) );
/*
* only allocate the conversion buffer for the ADC
*/
if (dmabuf->type == CS_TYPE_DAC) {
dmabuf->tmpbuff = NULL;
dmabuf->buforder_tmpbuff = 0;
return 0;
}
/*
* now the temp buffer for 16/8 conversions
*/
tmpbuff = (void *) pci_alloc_consistent(
card->pci_dev, PAGE_SIZE << order, &dmabuf->dmaaddr_tmpbuff);
if (!tmpbuff)
return -ENOMEM;
CS_DBGOUT(CS_PARMS, 9, printk("cs46xx: allocated %ld (order = %d) bytes at %p\n",
PAGE_SIZE << order, order, tmpbuff) );
dmabuf->tmpbuff = tmpbuff;
dmabuf->buforder_tmpbuff = order;
// Now mark the pages as reserved; otherwise the
// remap_pfn_range() in cs46xx_mmap doesn't work.
// 1. get index to last page in mem_map array for rawbuf.
mapend = virt_to_page(dmabuf->tmpbuff +
(PAGE_SIZE << dmabuf->buforder_tmpbuff) - 1);
// 2. mark each physical page in range as 'reserved'.
for (map = virt_to_page(dmabuf->tmpbuff); map <= mapend; map++)
cs4x_mem_map_reserve(map);
return 0;
}
/* free DMA buffer */
static void dealloc_dmabuf(struct cs_state *state)
{
struct dmabuf *dmabuf = &state->dmabuf;
struct page *map, *mapend;
if (dmabuf->rawbuf) {
// Undo prog_dmabuf()'s marking the pages as reserved
mapend = virt_to_page(dmabuf->rawbuf +
(PAGE_SIZE << dmabuf->buforder) - 1);
for (map = virt_to_page(dmabuf->rawbuf); map <= mapend; map++)
cs4x_mem_map_unreserve(map);
free_dmabuf(state->card, dmabuf);
}
if (dmabuf->tmpbuff) {
// Undo prog_dmabuf()'s marking the pages as reserved
mapend = virt_to_page(dmabuf->tmpbuff +
(PAGE_SIZE << dmabuf->buforder_tmpbuff) - 1);
for (map = virt_to_page(dmabuf->tmpbuff); map <= mapend; map++)
cs4x_mem_map_unreserve(map);
free_dmabuf2(state->card, dmabuf);
}
dmabuf->rawbuf = NULL;
dmabuf->tmpbuff = NULL;
dmabuf->mapped = dmabuf->ready = 0;
dmabuf->SGok = 0;
}
static int __prog_dmabuf(struct cs_state *state)
{
struct dmabuf *dmabuf = &state->dmabuf;
unsigned long flags;
unsigned long allocated_pages, allocated_bytes;
unsigned long tmp1, tmp2, fmt=0;
unsigned long *ptmp = (unsigned long *) dmabuf->pbuf;
unsigned long SGarray[9], nSGpages=0;
int ret;
CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf()+ \n"));
/*
* check for CAPTURE and use only non-sg for initial release
*/
if (dmabuf->type == CS_TYPE_ADC) {
CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf() ADC\n"));
/*
* add in non-sg support for capture.
*/
spin_lock_irqsave(&state->card->lock, flags);
/* add code to reset the rawbuf memory. TRW */
resync_dma_ptrs(state);
dmabuf->total_bytes = dmabuf->blocks = 0;
dmabuf->count = dmabuf->error = dmabuf->underrun = 0;
dmabuf->SGok = 0;
spin_unlock_irqrestore(&state->card->lock, flags);
/* allocate DMA buffer if not allocated yet */
if (!dmabuf->rawbuf || !dmabuf->tmpbuff)
if ((ret = alloc_dmabuf(state)))
return ret;
/*
* static image only supports 16Bit signed, stereo - hard code fmt
*/
fmt = CS_FMT_16BIT | CS_FMT_STEREO;
dmabuf->numfrag = 2;
dmabuf->fragsize = 2048;
dmabuf->fragsamples = 2048 >> sample_shift[fmt];
dmabuf->dmasize = 4096;
dmabuf->fragshift = 11;
memset(dmabuf->rawbuf, (fmt & CS_FMT_16BIT) ? 0 : 0x80,
dmabuf->dmasize);
memset(dmabuf->tmpbuff, (fmt & CS_FMT_16BIT) ? 0 : 0x80,
PAGE_SIZE<<dmabuf->buforder_tmpbuff);
/*
* Now set up the ring
*/
spin_lock_irqsave(&state->card->lock, flags);
cs_rec_setup(state);
spin_unlock_irqrestore(&state->card->lock, flags);
/* set the ready flag for the dma buffer */
dmabuf->ready = 1;
CS_DBGOUT(CS_PARMS, 4, printk(
"cs46xx: prog_dmabuf(): CAPTURE rate=%d fmt=0x%x numfrag=%d "
"fragsize=%d dmasize=%d\n",
dmabuf->rate, dmabuf->fmt, dmabuf->numfrag,
dmabuf->fragsize, dmabuf->dmasize) );
CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf()- 0 \n"));
return 0;
} else if (dmabuf->type == CS_TYPE_DAC) {
/*
* Must be DAC
*/
CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf() DAC\n"));
spin_lock_irqsave(&state->card->lock, flags);
resync_dma_ptrs(state);
dmabuf->total_bytes = dmabuf->blocks = 0;
dmabuf->count = dmabuf->error = dmabuf->underrun = 0;
dmabuf->SGok = 0;
spin_unlock_irqrestore(&state->card->lock, flags);
/* allocate DMA buffer if not allocated yet */
if (!dmabuf->rawbuf)
if ((ret = alloc_dmabuf(state)))
return ret;
allocated_pages = 1 << dmabuf->buforder;
allocated_bytes = allocated_pages*PAGE_SIZE;
if (allocated_pages < 2) {
CS_DBGOUT(CS_FUNCTION, 4, printk(
"cs46xx: prog_dmabuf() Error: allocated_pages too small (%d)\n",
(unsigned)allocated_pages));
return -ENOMEM;
}
/* Use all the pages allocated, fragsize 4k. */
/* Use 'pbuf' for S/G page map table. */
dmabuf->SGok = 1; /* Use S/G. */
nSGpages = allocated_bytes/4096; /* S/G pages always 4k. */
/* Set up S/G variables. */
*ptmp = virt_to_bus(dmabuf->rawbuf);
*(ptmp + 1) = 0x00000008;
for (tmp1 = 1; tmp1 < nSGpages; tmp1++) {
*(ptmp + 2 * tmp1) = virt_to_bus((dmabuf->rawbuf) + 4096 * tmp1);
if (tmp1 == nSGpages - 1)
tmp2 = 0xbfff0000;
else
tmp2 = 0x80000000 + 8 * (tmp1 + 1);
*(ptmp + 2 * tmp1 + 1) = tmp2;
}
SGarray[0] = 0x82c0200d;
SGarray[1] = 0xffff0000;
SGarray[2] = *ptmp;
SGarray[3] = 0x00010600;
SGarray[4] = *(ptmp+2);
SGarray[5] = 0x80000010;
SGarray[6] = *ptmp;
SGarray[7] = *(ptmp+2);
SGarray[8] = (virt_to_bus(dmabuf->pbuf) & 0xffff000) | 0x10;
if (dmabuf->SGok) {
dmabuf->numfrag = nSGpages;
dmabuf->fragsize = 4096;
dmabuf->fragsamples = 4096 >> sample_shift[dmabuf->fmt];
dmabuf->fragshift = 12;
dmabuf->dmasize = dmabuf->numfrag * 4096;
} else {
SGarray[0] = 0xf2c0000f;
SGarray[1] = 0x00000200;
SGarray[2] = 0;
SGarray[3] = 0x00010600;
SGarray[4]=SGarray[5]=SGarray[6]=SGarray[7]=SGarray[8] = 0;
dmabuf->numfrag = 2;
dmabuf->fragsize = 2048;
dmabuf->fragsamples = 2048 >> sample_shift[dmabuf->fmt];
dmabuf->dmasize = 4096;
dmabuf->fragshift = 11;
}
for (tmp1 = 0; tmp1 < sizeof(SGarray) / 4; tmp1++)
cs461x_poke(state->card, BA1_PDTC+tmp1 * 4, SGarray[tmp1]);
memset(dmabuf->rawbuf, (dmabuf->fmt & CS_FMT_16BIT) ? 0 : 0x80,
dmabuf->dmasize);
/*
* Now set up the ring
*/
spin_lock_irqsave(&state->card->lock, flags);
cs_play_setup(state);
spin_unlock_irqrestore(&state->card->lock, flags);
/* set the ready flag for the dma buffer */
dmabuf->ready = 1;
CS_DBGOUT(CS_PARMS, 4, printk(
"cs46xx: prog_dmabuf(): PLAYBACK rate=%d fmt=0x%x numfrag=%d "
"fragsize=%d dmasize=%d\n",
dmabuf->rate, dmabuf->fmt, dmabuf->numfrag,
dmabuf->fragsize, dmabuf->dmasize) );
CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf()- \n"));
return 0;
} else {
CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf()- Invalid Type %d\n",
dmabuf->type));
}
return 1;
}
static int prog_dmabuf(struct cs_state *state)
{
int ret;
mutex_lock(&state->sem);
ret = __prog_dmabuf(state);
mutex_unlock(&state->sem);
return ret;
}
static void cs_clear_tail(struct cs_state *state)
{
}
static int drain_dac(struct cs_state *state, int nonblock)
{
DECLARE_WAITQUEUE(wait, current);
struct dmabuf *dmabuf = &state->dmabuf;
struct cs_card *card=state->card;
unsigned long flags;
unsigned long tmo;
int count;
CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: drain_dac()+ \n"));
if (dmabuf->mapped || !dmabuf->ready)
{
CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: drain_dac()- 0, not ready\n"));
return 0;
}
add_wait_queue(&dmabuf->wait, &wait);
for (;;) {
/* It seems that we have to set the current state to TASK_INTERRUPTIBLE
every time to make the process really go to sleep */
current->state = TASK_INTERRUPTIBLE;
spin_lock_irqsave(&state->card->lock, flags);
count = dmabuf->count;
spin_unlock_irqrestore(&state->card->lock, flags);
if (count <= 0)
break;
if (signal_pending(current))
break;
if (nonblock) {
remove_wait_queue(&dmabuf->wait, &wait);
current->state = TASK_RUNNING;
return -EBUSY;
}
tmo = (dmabuf->dmasize * HZ) / dmabuf->rate;
tmo >>= sample_shift[dmabuf->fmt];
tmo += (2048*HZ)/dmabuf->rate;
if (!schedule_timeout(tmo ? tmo : 1) && tmo){
printk(KERN_ERR "cs46xx: drain_dac, dma timeout? %d\n", count);
break;
}
}
remove_wait_queue(&dmabuf->wait, &wait);
current->state = TASK_RUNNING;
if (signal_pending(current)) {
CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: drain_dac()- -ERESTARTSYS\n"));
/*
* set to silence and let that clear the fifos.
*/
cs461x_clear_serial_FIFOs(card, CS_TYPE_DAC);
return -ERESTARTSYS;
}
CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: drain_dac()- 0\n"));
return 0;
}
/* update buffer manangement pointers, especially, dmabuf->count and dmabuf->hwptr */
static void cs_update_ptr(struct cs_card *card, int wake)
{
struct cs_state *state;
struct dmabuf *dmabuf;
unsigned hwptr;
int diff;
/* error handling and process wake up for ADC */
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
if (dmabuf->enable & ADC_RUNNING) {
/* update hardware pointer */
hwptr = cs_get_dma_addr(state);
diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
CS_DBGOUT(CS_PARMS, 9, printk(
"cs46xx: cs_update_ptr()+ ADC hwptr=%d diff=%d\n",
hwptr,diff) );
dmabuf->hwptr = hwptr;
dmabuf->total_bytes += diff;
dmabuf->count += diff;
if (dmabuf->count > dmabuf->dmasize)
dmabuf->count = dmabuf->dmasize;
if (dmabuf->mapped) {
if (wake && dmabuf->count >= (signed)dmabuf->fragsize)
wake_up(&dmabuf->wait);
} else {
if (wake && dmabuf->count > 0)
wake_up(&dmabuf->wait);
}
}
}
/*
* Now the DAC
*/
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
/* error handling and process wake up for DAC */
if (dmabuf->enable & DAC_RUNNING) {
/* update hardware pointer */
hwptr = cs_get_dma_addr(state);
diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
CS_DBGOUT(CS_PARMS, 9, printk(
"cs46xx: cs_update_ptr()+ DAC hwptr=%d diff=%d\n",
hwptr,diff) );
dmabuf->hwptr = hwptr;
dmabuf->total_bytes += diff;
if (dmabuf->mapped) {
dmabuf->count += diff;
if (wake && dmabuf->count >= (signed)dmabuf->fragsize)
wake_up(&dmabuf->wait);
/*
* other drivers use fragsize, but don't see any sense
* in that, since dmasize is the buffer asked for
* via mmap.
*/
if (dmabuf->count > dmabuf->dmasize)
dmabuf->count &= dmabuf->dmasize-1;
} else {
dmabuf->count -= diff;
/*
* backfill with silence and clear out the last
* "diff" number of bytes.
*/
if (hwptr >= diff) {
memset(dmabuf->rawbuf + hwptr - diff,
(dmabuf->fmt & CS_FMT_16BIT) ? 0 : 0x80, diff);
} else {
memset(dmabuf->rawbuf,
(dmabuf->fmt & CS_FMT_16BIT) ? 0 : 0x80,
(unsigned)hwptr);
memset((char *)dmabuf->rawbuf +
dmabuf->dmasize + hwptr - diff,
(dmabuf->fmt & CS_FMT_16BIT) ? 0 : 0x80,
diff - hwptr);
}
if (dmabuf->count < 0 || dmabuf->count > dmabuf->dmasize) {
CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO
"cs46xx: ERROR DAC count<0 or count > dmasize (%d)\n",
dmabuf->count));
/*
* buffer underrun or buffer overrun, reset the
* count of bytes written back to 0.
*/
if (dmabuf->count < 0)
dmabuf->underrun = 1;
dmabuf->count = 0;
dmabuf->error++;
}
if (wake && dmabuf->count < (signed)dmabuf->dmasize / 2)
wake_up(&dmabuf->wait);
}
}
}
}
/* hold spinlock for the following! */
static void cs_handle_midi(struct cs_card *card)
{
unsigned char ch;
int wake;
unsigned temp1;
wake = 0;
while (!(cs461x_peekBA0(card, BA0_MIDSR) & MIDSR_RBE)) {
ch = cs461x_peekBA0(card, BA0_MIDRP);
if (card->midi.icnt < CS_MIDIINBUF) {
card->midi.ibuf[card->midi.iwr] = ch;
card->midi.iwr = (card->midi.iwr + 1) % CS_MIDIINBUF;
card->midi.icnt++;
}
wake = 1;
}
if (wake)
wake_up(&card->midi.iwait);
wake = 0;
while (!(cs461x_peekBA0(card, BA0_MIDSR) & MIDSR_TBF) && card->midi.ocnt > 0) {
temp1 = ( card->midi.obuf[card->midi.ord] ) & 0x000000ff;
cs461x_pokeBA0(card, BA0_MIDWP,temp1);
card->midi.ord = (card->midi.ord + 1) % CS_MIDIOUTBUF;
card->midi.ocnt--;
if (card->midi.ocnt < CS_MIDIOUTBUF-16)
wake = 1;
}
if (wake)
wake_up(&card->midi.owait);
}
static irqreturn_t cs_interrupt(int irq, void *dev_id)
{
struct cs_card *card = (struct cs_card *)dev_id;
/* Single channel card */
struct cs_state *recstate = card->channel[0].state;
struct cs_state *playstate = card->channel[1].state;
u32 status;
CS_DBGOUT(CS_INTERRUPT, 9, printk("cs46xx: cs_interrupt()+ \n"));
spin_lock(&card->lock);
status = cs461x_peekBA0(card, BA0_HISR);
if ((status & 0x7fffffff) == 0) {
cs461x_pokeBA0(card, BA0_HICR, HICR_CHGM|HICR_IEV);
spin_unlock(&card->lock);
return IRQ_HANDLED; /* Might be IRQ_NONE.. */
}
/*
* check for playback or capture interrupt only
*/
if (((status & HISR_VC0) && playstate && playstate->dmabuf.ready) ||
(((status & HISR_VC1) && recstate && recstate->dmabuf.ready))) {
CS_DBGOUT(CS_INTERRUPT, 8, printk(
"cs46xx: cs_interrupt() interrupt bit(s) set (0x%x)\n",status));
cs_update_ptr(card, CS_TRUE);
}
if (status & HISR_MIDI)
cs_handle_midi(card);
/* clear 'em */
cs461x_pokeBA0(card, BA0_HICR, HICR_CHGM|HICR_IEV);
spin_unlock(&card->lock);
CS_DBGOUT(CS_INTERRUPT, 9, printk("cs46xx: cs_interrupt()- \n"));
return IRQ_HANDLED;
}
/**********************************************************************/
static ssize_t cs_midi_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
{
struct cs_card *card = file->private_data;
ssize_t ret;
unsigned long flags;
unsigned ptr;
int cnt;
if (!access_ok(VERIFY_WRITE, buffer, count))
return -EFAULT;
ret = 0;
while (count > 0) {
spin_lock_irqsave(&card->lock, flags);
ptr = card->midi.ird;
cnt = CS_MIDIINBUF - ptr;
if (card->midi.icnt < cnt)
cnt = card->midi.icnt;
spin_unlock_irqrestore(&card->lock, flags);
if (cnt > count)
cnt = count;
if (cnt <= 0) {
if (file->f_flags & O_NONBLOCK)
return ret ? ret : -EAGAIN;
interruptible_sleep_on(&card->midi.iwait);
if (signal_pending(current))
return ret ? ret : -ERESTARTSYS;
continue;
}
if (copy_to_user(buffer, card->midi.ibuf + ptr, cnt))
return ret ? ret : -EFAULT;
ptr = (ptr + cnt) % CS_MIDIINBUF;
spin_lock_irqsave(&card->lock, flags);
card->midi.ird = ptr;
card->midi.icnt -= cnt;
spin_unlock_irqrestore(&card->lock, flags);
count -= cnt;
buffer += cnt;
ret += cnt;
}
return ret;
}
static ssize_t cs_midi_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
{
struct cs_card *card = file->private_data;
ssize_t ret;
unsigned long flags;
unsigned ptr;
int cnt;
if (!access_ok(VERIFY_READ, buffer, count))
return -EFAULT;
ret = 0;
while (count > 0) {
spin_lock_irqsave(&card->lock, flags);
ptr = card->midi.owr;
cnt = CS_MIDIOUTBUF - ptr;
if (card->midi.ocnt + cnt > CS_MIDIOUTBUF)
cnt = CS_MIDIOUTBUF - card->midi.ocnt;
if (cnt <= 0)
cs_handle_midi(card);
spin_unlock_irqrestore(&card->lock, flags);
if (cnt > count)
cnt = count;
if (cnt <= 0) {
if (file->f_flags & O_NONBLOCK)
return ret ? ret : -EAGAIN;
interruptible_sleep_on(&card->midi.owait);
if (signal_pending(current))
return ret ? ret : -ERESTARTSYS;
continue;
}
if (copy_from_user(card->midi.obuf + ptr, buffer, cnt))
return ret ? ret : -EFAULT;
ptr = (ptr + cnt) % CS_MIDIOUTBUF;
spin_lock_irqsave(&card->lock, flags);
card->midi.owr = ptr;
card->midi.ocnt += cnt;
spin_unlock_irqrestore(&card->lock, flags);
count -= cnt;
buffer += cnt;
ret += cnt;
spin_lock_irqsave(&card->lock, flags);
cs_handle_midi(card);
spin_unlock_irqrestore(&card->lock, flags);
}
return ret;
}
static unsigned int cs_midi_poll(struct file *file, struct poll_table_struct *wait)
{
struct cs_card *card = file->private_data;
unsigned long flags;
unsigned int mask = 0;
if (file->f_flags & FMODE_WRITE)
poll_wait(file, &card->midi.owait, wait);
if (file->f_flags & FMODE_READ)
poll_wait(file, &card->midi.iwait, wait);
spin_lock_irqsave(&card->lock, flags);
if (file->f_flags & FMODE_READ) {
if (card->midi.icnt > 0)
mask |= POLLIN | POLLRDNORM;
}
if (file->f_flags & FMODE_WRITE) {
if (card->midi.ocnt < CS_MIDIOUTBUF)
mask |= POLLOUT | POLLWRNORM;
}
spin_unlock_irqrestore(&card->lock, flags);
return mask;
}
static int cs_midi_open(struct inode *inode, struct file *file)
{
unsigned int minor = iminor(inode);
struct cs_card *card = NULL;
unsigned long flags;
struct list_head *entry;
list_for_each(entry, &cs46xx_devs) {
card = list_entry(entry, struct cs_card, list);
if (card->dev_midi == minor)
break;
}
if (entry == &cs46xx_devs)
return -ENODEV;
if (!card) {
CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO
"cs46xx: cs46xx_midi_open(): Error - unable to find card struct\n"));
return -ENODEV;
}
file->private_data = card;
/* wait for device to become free */
mutex_lock(&card->midi.open_mutex);
while (card->midi.open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
mutex_unlock(&card->midi.open_mutex);
return -EBUSY;
}
mutex_unlock(&card->midi.open_mutex);
interruptible_sleep_on(&card->midi.open_wait);
if (signal_pending(current))
return -ERESTARTSYS;
mutex_lock(&card->midi.open_mutex);
}
spin_lock_irqsave(&card->midi.lock, flags);
if (!(card->midi.open_mode & (FMODE_READ | FMODE_WRITE))) {
card->midi.ird = card->midi.iwr = card->midi.icnt = 0;
card->midi.ord = card->midi.owr = card->midi.ocnt = 0;
card->midi.ird = card->midi.iwr = card->midi.icnt = 0;
cs461x_pokeBA0(card, BA0_MIDCR, 0x0000000f); /* Enable xmit, rcv. */
cs461x_pokeBA0(card, BA0_HICR, HICR_IEV | HICR_CHGM); /* Enable interrupts */
}
if (file->f_mode & FMODE_READ)
card->midi.ird = card->midi.iwr = card->midi.icnt = 0;
if (file->f_mode & FMODE_WRITE)
card->midi.ord = card->midi.owr = card->midi.ocnt = 0;
spin_unlock_irqrestore(&card->midi.lock, flags);
card->midi.open_mode |= (file->f_mode & (FMODE_READ | FMODE_WRITE));
mutex_unlock(&card->midi.open_mutex);
return 0;
}
static int cs_midi_release(struct inode *inode, struct file *file)
{
struct cs_card *card = file->private_data;
DECLARE_WAITQUEUE(wait, current);
unsigned long flags;
unsigned count, tmo;
if (file->f_mode & FMODE_WRITE) {
current->state = TASK_INTERRUPTIBLE;
add_wait_queue(&card->midi.owait, &wait);
for (;;) {
spin_lock_irqsave(&card->midi.lock, flags);
count = card->midi.ocnt;
spin_unlock_irqrestore(&card->midi.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 "cs46xx: midi timed out??\n");
}
remove_wait_queue(&card->midi.owait, &wait);
current->state = TASK_RUNNING;
}
mutex_lock(&card->midi.open_mutex);
card->midi.open_mode &= (~(file->f_mode & (FMODE_READ | FMODE_WRITE)));
mutex_unlock(&card->midi.open_mutex);
wake_up(&card->midi.open_wait);
return 0;
}
/*
* Midi file operations struct.
*/
static /*const*/ struct file_operations cs_midi_fops = {
CS_OWNER CS_THIS_MODULE
.llseek = no_llseek,
.read = cs_midi_read,
.write = cs_midi_write,
.poll = cs_midi_poll,
.open = cs_midi_open,
.release = cs_midi_release,
};
/*
*
* CopySamples copies 16-bit stereo signed samples from the source to the
* destination, possibly converting down to unsigned 8-bit and/or mono.
* count specifies the number of output bytes to write.
*
* Arguments:
*
* dst - Pointer to a destination buffer.
* src - Pointer to a source buffer
* count - The number of bytes to copy into the destination buffer.
* fmt - CS_FMT_16BIT and/or CS_FMT_STEREO bits
* dmabuf - pointer to the dma buffer structure
*
* NOTES: only call this routine if the output desired is not 16 Signed Stereo
*
*
*/
static void CopySamples(char *dst, char *src, int count, unsigned fmt,
struct dmabuf *dmabuf)
{
s32 s32AudioSample;
s16 *psSrc = (s16 *)src;
s16 *psDst = (s16 *)dst;
u8 *pucDst = (u8 *)dst;
CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO "cs46xx: CopySamples()+ ") );
CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO
" dst=%p src=%p count=%d fmt=0x%x\n",
dst,src,count,fmt) );
/*
* See if the data should be output as 8-bit unsigned stereo.
*/
if ((fmt & CS_FMT_STEREO) && !(fmt & CS_FMT_16BIT)) {
/*
* Convert each 16-bit signed stereo sample to 8-bit unsigned
* stereo using rounding.
*/
psSrc = (s16 *)src;
count = count / 2;
while (count--)
*(pucDst++) = (u8)(((s16)(*psSrc++) + (s16)0x8000) >> 8);
}
/*
* See if the data should be output at 8-bit unsigned mono.
*/
else if (!(fmt & CS_FMT_STEREO) && !(fmt & CS_FMT_16BIT)) {
/*
* Convert each 16-bit signed stereo sample to 8-bit unsigned
* mono using averaging and rounding.
*/
psSrc = (s16 *)src;
count = count / 2;
while (count--) {
s32AudioSample = ((*psSrc) + (*(psSrc + 1))) / 2 + (s32)0x80;
if (s32AudioSample > 0x7fff)
s32AudioSample = 0x7fff;
*(pucDst++) = (u8)(((s16)s32AudioSample + (s16)0x8000) >> 8);
psSrc += 2;
}
}
/*
* See if the data should be output at 16-bit signed mono.
*/
else if (!(fmt & CS_FMT_STEREO) && (fmt & CS_FMT_16BIT)) {
/*
* Convert each 16-bit signed stereo sample to 16-bit signed
* mono using averaging.
*/
psSrc = (s16 *)src;
count = count / 2;
while (count--) {
*(psDst++) = (s16)((*psSrc) + (*(psSrc + 1))) / 2;
psSrc += 2;
}
}
}
/*
* cs_copy_to_user()
* replacement for the standard copy_to_user, to allow for a conversion from
* 16 bit to 8 bit and from stereo to mono, if the record conversion is active.
* The current CS46xx/CS4280 static image only records in 16bit unsigned Stereo,
* so we convert from any of the other format combinations.
*/
static unsigned cs_copy_to_user(
struct cs_state *s,
void __user *dest,
void *hwsrc,
unsigned cnt,
unsigned *copied)
{
struct dmabuf *dmabuf = &s->dmabuf;
void *src = hwsrc; /* default to the standard destination buffer addr */
CS_DBGOUT(CS_FUNCTION, 6, printk(KERN_INFO
"cs_copy_to_user()+ fmt=0x%x cnt=%d dest=%p\n",
dmabuf->fmt,(unsigned)cnt,dest) );
if (cnt > dmabuf->dmasize)
cnt = dmabuf->dmasize;
if (!cnt) {
*copied = 0;
return 0;
}
if (dmabuf->divisor != 1) {
if (!dmabuf->tmpbuff) {
*copied = cnt / dmabuf->divisor;
return 0;
}
CopySamples((char *)dmabuf->tmpbuff, (char *)hwsrc, cnt,
dmabuf->fmt, dmabuf);
src = dmabuf->tmpbuff;
cnt = cnt/dmabuf->divisor;
}
if (copy_to_user(dest, src, cnt)) {
CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_ERR
"cs46xx: cs_copy_to_user()- fault dest=%p src=%p cnt=%d\n",
dest,src,cnt));
*copied = 0;
return -EFAULT;
}
*copied = cnt;
CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO
"cs46xx: cs_copy_to_user()- copied bytes is %d \n",cnt));
return 0;
}
/* in this loop, dmabuf.count signifies the amount of data that is waiting to be copied to
the user's buffer. it is filled by the dma machine and drained by this loop. */
static ssize_t cs_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
{
struct cs_card *card = file->private_data;
struct cs_state *state;
DECLARE_WAITQUEUE(wait, current);
struct dmabuf *dmabuf;
ssize_t ret = 0;
unsigned long flags;
unsigned swptr;
int cnt;
unsigned copied = 0;
CS_DBGOUT(CS_WAVE_READ | CS_FUNCTION, 4,
printk("cs46xx: cs_read()+ %zd\n",count) );
state = card->states[0];
if (!state)
return -ENODEV;
dmabuf = &state->dmabuf;
if (dmabuf->mapped)
return -ENXIO;
if (!access_ok(VERIFY_WRITE, buffer, count))
return -EFAULT;
mutex_lock(&state->sem);
if (!dmabuf->ready && (ret = __prog_dmabuf(state)))
goto out2;
add_wait_queue(&state->dmabuf.wait, &wait);
while (count > 0) {
while (!(card->pm.flags & CS46XX_PM_IDLE)) {
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out;
}
}
spin_lock_irqsave(&state->card->lock, flags);
swptr = dmabuf->swptr;
cnt = dmabuf->dmasize - swptr;
if (dmabuf->count < cnt)
cnt = dmabuf->count;
if (cnt <= 0)
__set_current_state(TASK_INTERRUPTIBLE);
spin_unlock_irqrestore(&state->card->lock, flags);
if (cnt > (count * dmabuf->divisor))
cnt = count * dmabuf->divisor;
if (cnt <= 0) {
/* buffer is empty, start the dma machine and wait for data to be
recorded */
start_adc(state);
if (file->f_flags & O_NONBLOCK) {
if (!ret)
ret = -EAGAIN;
goto out;
}
mutex_unlock(&state->sem);
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out;
}
mutex_lock(&state->sem);
if (dmabuf->mapped) {
if (!ret)
ret = -ENXIO;
goto out;
}
continue;
}
CS_DBGOUT(CS_WAVE_READ, 2, printk(KERN_INFO
"_read() copy_to cnt=%d count=%zd ", cnt,count) );
CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO
" .dmasize=%d .count=%d buffer=%p ret=%zd\n",
dmabuf->dmasize,dmabuf->count,buffer,ret));
if (cs_copy_to_user(state, buffer,
(char *)dmabuf->rawbuf + swptr, cnt, &copied)) {
if (!ret)
ret = -EFAULT;
goto out;
}
swptr = (swptr + cnt) % dmabuf->dmasize;
spin_lock_irqsave(&card->lock, flags);
dmabuf->swptr = swptr;
dmabuf->count -= cnt;
spin_unlock_irqrestore(&card->lock, flags);
count -= copied;
buffer += copied;
ret += copied;
start_adc(state);
}
out:
remove_wait_queue(&state->dmabuf.wait, &wait);
out2:
mutex_unlock(&state->sem);
set_current_state(TASK_RUNNING);
CS_DBGOUT(CS_WAVE_READ | CS_FUNCTION, 4,
printk("cs46xx: cs_read()- %zd\n",ret) );
return ret;
}
/* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to
the soundcard. it is drained by the dma machine and filled by this loop. */
static ssize_t cs_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
{
struct cs_card *card = file->private_data;
struct cs_state *state;
DECLARE_WAITQUEUE(wait, current);
struct dmabuf *dmabuf;
ssize_t ret;
unsigned long flags;
unsigned swptr;
int cnt;
CS_DBGOUT(CS_WAVE_WRITE | CS_FUNCTION, 4,
printk("cs46xx: cs_write called, count = %zd\n", count) );
state = card->states[1];
if (!state)
return -ENODEV;
if (!access_ok(VERIFY_READ, buffer, count))
return -EFAULT;
dmabuf = &state->dmabuf;
mutex_lock(&state->sem);
if (dmabuf->mapped) {
ret = -ENXIO;
goto out;
}
if (!dmabuf->ready && (ret = __prog_dmabuf(state)))
goto out;
add_wait_queue(&state->dmabuf.wait, &wait);
ret = 0;
/*
* Start the loop to read from the user's buffer and write to the dma buffer.
* check for PM events and underrun/overrun in the loop.
*/
while (count > 0) {
while (!(card->pm.flags & CS46XX_PM_IDLE)) {
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out;
}
}
spin_lock_irqsave(&state->card->lock, flags);
if (dmabuf->count < 0) {
/* buffer underrun, we are recovering from sleep_on_timeout,
resync hwptr and swptr */
dmabuf->count = 0;
dmabuf->swptr = dmabuf->hwptr;
}
if (dmabuf->underrun) {
dmabuf->underrun = 0;
dmabuf->hwptr = cs_get_dma_addr(state);
dmabuf->swptr = dmabuf->hwptr;
}
swptr = dmabuf->swptr;
cnt = dmabuf->dmasize - swptr;
if (dmabuf->count + cnt > dmabuf->dmasize)
cnt = dmabuf->dmasize - dmabuf->count;
if (cnt <= 0)
__set_current_state(TASK_INTERRUPTIBLE);
spin_unlock_irqrestore(&state->card->lock, flags);
if (cnt > count)
cnt = count;
if (cnt <= 0) {
/* buffer is full, start the dma machine and wait for data to be
played */
start_dac(state);
if (file->f_flags & O_NONBLOCK) {
if (!ret)
ret = -EAGAIN;
goto out;
}
mutex_unlock(&state->sem);
schedule();
if (signal_pending(current)) {
if (!ret)
ret = -ERESTARTSYS;
goto out;
}
mutex_lock(&state->sem);
if (dmabuf->mapped) {
if (!ret)
ret = -ENXIO;
goto out;
}
continue;
}
if (copy_from_user(dmabuf->rawbuf + swptr, buffer, cnt)) {
if (!ret)
ret = -EFAULT;
goto out;
}
spin_lock_irqsave(&state->card->lock, flags);
swptr = (swptr + cnt) % dmabuf->dmasize;
dmabuf->swptr = swptr;
dmabuf->count += cnt;
if (dmabuf->count > dmabuf->dmasize) {
CS_DBGOUT(CS_WAVE_WRITE | CS_ERROR, 2, printk(
"cs46xx: cs_write() d->count > dmasize - resetting\n"));
dmabuf->count = dmabuf->dmasize;
}
dmabuf->endcleared = 0;
spin_unlock_irqrestore(&state->card->lock, flags);
count -= cnt;
buffer += cnt;
ret += cnt;
start_dac(state);
}
out:
mutex_unlock(&state->sem);
remove_wait_queue(&state->dmabuf.wait, &wait);
set_current_state(TASK_RUNNING);
CS_DBGOUT(CS_WAVE_WRITE | CS_FUNCTION, 2,
printk("cs46xx: cs_write()- ret=%zd\n", ret));
return ret;
}
static unsigned int cs_poll(struct file *file, struct poll_table_struct *wait)
{
struct cs_card *card = file->private_data;
struct dmabuf *dmabuf;
struct cs_state *state;
unsigned long flags;
unsigned int mask = 0;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_poll()+ \n"));
if (!(file->f_mode & (FMODE_WRITE | FMODE_READ))) {
return -EINVAL;
}
if (file->f_mode & FMODE_WRITE) {
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
poll_wait(file, &dmabuf->wait, wait);
}
}
if (file->f_mode & FMODE_READ) {
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
poll_wait(file, &dmabuf->wait, wait);
}
}
spin_lock_irqsave(&card->lock, flags);
cs_update_ptr(card, CS_FALSE);
if (file->f_mode & FMODE_READ) {
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
if (dmabuf->count >= (signed)dmabuf->fragsize)
mask |= POLLIN | POLLRDNORM;
}
}
if (file->f_mode & FMODE_WRITE) {
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
if (dmabuf->mapped) {
if (dmabuf->count >= (signed)dmabuf->fragsize)
mask |= POLLOUT | POLLWRNORM;
} else {
if ((signed)dmabuf->dmasize >= dmabuf->count
+ (signed)dmabuf->fragsize)
mask |= POLLOUT | POLLWRNORM;
}
}
}
spin_unlock_irqrestore(&card->lock, flags);
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_poll()- (0x%x) \n",
mask));
return mask;
}
/*
* We let users mmap the ring buffer. Its not the real DMA buffer but
* that side of the code is hidden in the IRQ handling. We do a software
* emulation of DMA from a 64K or so buffer into a 2K FIFO.
* (the hardware probably deserves a moan here but Crystal send me nice
* toys ;)).
*/
static int cs_mmap(struct file *file, struct vm_area_struct *vma)
{
struct cs_card *card = file->private_data;
struct cs_state *state;
struct dmabuf *dmabuf;
int ret = 0;
unsigned long size;
CS_DBGOUT(CS_FUNCTION | CS_PARMS, 2, printk("cs46xx: cs_mmap()+ file=%p %s %s\n",
file, vma->vm_flags & VM_WRITE ? "VM_WRITE" : "",
vma->vm_flags & VM_READ ? "VM_READ" : "") );
if (vma->vm_flags & VM_WRITE) {
state = card->states[1];
if (state) {
CS_DBGOUT(CS_OPEN, 2, printk(
"cs46xx: cs_mmap() VM_WRITE - state TRUE prog_dmabuf DAC\n") );
if ((ret = prog_dmabuf(state)) != 0)
return ret;
}
} else if (vma->vm_flags & VM_READ) {
state = card->states[0];
if (state) {
CS_DBGOUT(CS_OPEN, 2, printk(
"cs46xx: cs_mmap() VM_READ - state TRUE prog_dmabuf ADC\n") );
if ((ret = prog_dmabuf(state)) != 0)
return ret;
}
} else {
CS_DBGOUT(CS_ERROR, 2, printk(
"cs46xx: cs_mmap() return -EINVAL\n") );
return -EINVAL;
}
/*
* For now ONLY support playback, but seems like the only way to use
* mmap() is to open an FD with RDWR, just read or just write access
* does not function, get an error back from the kernel.
* Also, QuakeIII opens with RDWR! So, there must be something
* to needing read/write access mapping. So, allow read/write but
* use the DAC only.
*/
state = card->states[1];
if (!state) {
ret = -EINVAL;
goto out;
}
mutex_lock(&state->sem);
dmabuf = &state->dmabuf;
if (cs4x_pgoff(vma) != 0) {
ret = -EINVAL;
goto out;
}
size = vma->vm_end - vma->vm_start;
CS_DBGOUT(CS_PARMS, 2, printk("cs46xx: cs_mmap(): size=%d\n",(unsigned)size) );
if (size > (PAGE_SIZE << dmabuf->buforder)) {
ret = -EINVAL;
goto out;
}
if (remap_pfn_range(vma, vma->vm_start,
virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT,
size, vma->vm_page_prot)) {
ret = -EAGAIN;
goto out;
}
dmabuf->mapped = 1;
CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_mmap()-\n") );
out:
mutex_unlock(&state->sem);
return ret;
}
static int cs_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
struct cs_card *card = file->private_data;
struct cs_state *state;
struct dmabuf *dmabuf = NULL;
unsigned long flags;
audio_buf_info abinfo;
count_info cinfo;
int val, valsave, ret;
int mapped = 0;
void __user *argp = (void __user *)arg;
int __user *p = argp;
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
mapped = (file->f_mode & FMODE_READ) && dmabuf->mapped;
}
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
mapped |= (file->f_mode & FMODE_WRITE) && dmabuf->mapped;
}
#if CSDEBUG
printioctl(cmd);
#endif
switch (cmd) {
case OSS_GETVERSION:
return put_user(SOUND_VERSION, p);
case SNDCTL_DSP_RESET:
/* FIXME: spin_lock ? */
if (file->f_mode & FMODE_WRITE) {
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
stop_dac(state);
synchronize_irq(card->irq);
dmabuf->ready = 0;
resync_dma_ptrs(state);
dmabuf->swptr = dmabuf->hwptr = 0;
dmabuf->count = dmabuf->total_bytes = 0;
dmabuf->blocks = 0;
dmabuf->SGok = 0;
}
}
if (file->f_mode & FMODE_READ) {
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
stop_adc(state);
synchronize_irq(card->irq);
resync_dma_ptrs(state);
dmabuf->ready = 0;
dmabuf->swptr = dmabuf->hwptr = 0;
dmabuf->count = dmabuf->total_bytes = 0;
dmabuf->blocks = 0;
dmabuf->SGok = 0;
}
}
CS_DBGOUT(CS_IOCTL, 2, printk("cs46xx: DSP_RESET()-\n") );
return 0;
case SNDCTL_DSP_SYNC:
if (file->f_mode & FMODE_WRITE)
return drain_dac(state, file->f_flags & O_NONBLOCK);
return 0;
case SNDCTL_DSP_SPEED: /* set sample rate */
if (get_user(val, p))
return -EFAULT;
if (val >= 0) {
if (file->f_mode & FMODE_READ) {
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
stop_adc(state);
dmabuf->ready = 0;
dmabuf->SGok = 0;
cs_set_adc_rate(state, val);
cs_set_divisor(dmabuf);
}
}
if (file->f_mode & FMODE_WRITE) {
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
stop_dac(state);
dmabuf->ready = 0;
dmabuf->SGok = 0;
cs_set_dac_rate(state, val);
cs_set_divisor(dmabuf);
}
}
CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(
"cs46xx: cs_ioctl() DSP_SPEED %s %s %d\n",
file->f_mode & FMODE_WRITE ? "DAC" : "",
file->f_mode & FMODE_READ ? "ADC" : "",
dmabuf->rate ) );
return put_user(dmabuf->rate, p);
}
return put_user(0, p);
case SNDCTL_DSP_STEREO: /* set stereo or mono channel */
if (get_user(val, p))
return -EFAULT;
if (file->f_mode & FMODE_WRITE) {
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
stop_dac(state);
dmabuf->ready = 0;
dmabuf->SGok = 0;
if (val)
dmabuf->fmt |= CS_FMT_STEREO;
else
dmabuf->fmt &= ~CS_FMT_STEREO;
cs_set_divisor(dmabuf);
CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(
"cs46xx: DSP_STEREO() DAC %s\n",
(dmabuf->fmt & CS_FMT_STEREO) ?
"STEREO":"MONO") );
}
}
if (file->f_mode & FMODE_READ) {
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
stop_adc(state);
dmabuf->ready = 0;
dmabuf->SGok = 0;
if (val)
dmabuf->fmt |= CS_FMT_STEREO;
else
dmabuf->fmt &= ~CS_FMT_STEREO;
cs_set_divisor(dmabuf);
CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(
"cs46xx: DSP_STEREO() ADC %s\n",
(dmabuf->fmt & CS_FMT_STEREO) ?
"STEREO":"MONO") );
}
}
return 0;
case SNDCTL_DSP_GETBLKSIZE:
if (file->f_mode & FMODE_WRITE) {
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
if ((val = prog_dmabuf(state)))
return val;
return put_user(dmabuf->fragsize, p);
}
}
if (file->f_mode & FMODE_READ) {
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
if ((val = prog_dmabuf(state)))
return val;
return put_user(dmabuf->fragsize/dmabuf->divisor,
p);
}
}
return put_user(0, p);
case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format*/
return put_user(AFMT_S16_LE | AFMT_U8, p);
case SNDCTL_DSP_SETFMT: /* Select sample format */
if (get_user(val, p))
return -EFAULT;
CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(
"cs46xx: cs_ioctl() DSP_SETFMT %s %s %s %s\n",
file->f_mode & FMODE_WRITE ? "DAC" : "",
file->f_mode & FMODE_READ ? "ADC" : "",
val == AFMT_S16_LE ? "16Bit Signed" : "",
val == AFMT_U8 ? "8Bit Unsigned" : "") );
valsave = val;
if (val != AFMT_QUERY) {
if (val==AFMT_S16_LE || val==AFMT_U8) {
if (file->f_mode & FMODE_WRITE) {
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
stop_dac(state);
dmabuf->ready = 0;
dmabuf->SGok = 0;
if (val == AFMT_S16_LE)
dmabuf->fmt |= CS_FMT_16BIT;
else
dmabuf->fmt &= ~CS_FMT_16BIT;
cs_set_divisor(dmabuf);
if ((ret = prog_dmabuf(state)))
return ret;
}
}
if (file->f_mode & FMODE_READ) {
val = valsave;
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
stop_adc(state);
dmabuf->ready = 0;
dmabuf->SGok = 0;
if (val == AFMT_S16_LE)
dmabuf->fmt |= CS_FMT_16BIT;
else
dmabuf->fmt &= ~CS_FMT_16BIT;
cs_set_divisor(dmabuf);
if ((ret = prog_dmabuf(state)))
return ret;
}
}
} else {
CS_DBGOUT(CS_IOCTL | CS_ERROR, 2, printk(
"cs46xx: DSP_SETFMT() Unsupported format (0x%x)\n",
valsave) );
}
} else {
if (file->f_mode & FMODE_WRITE) {
state = card->states[1];
if (state)
dmabuf = &state->dmabuf;
} else if (file->f_mode & FMODE_READ) {
state = card->states[0];
if (state)
dmabuf = &state->dmabuf;
}
}
if (dmabuf) {
if (dmabuf->fmt & CS_FMT_16BIT)
return put_user(AFMT_S16_LE, p);
else
return put_user(AFMT_U8, p);
}
return put_user(0, p);
case SNDCTL_DSP_CHANNELS:
if (get_user(val, p))
return -EFAULT;
if (val != 0) {
if (file->f_mode & FMODE_WRITE) {
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
stop_dac(state);
dmabuf->ready = 0;
dmabuf->SGok = 0;
if (val > 1)
dmabuf->fmt |= CS_FMT_STEREO;
else
dmabuf->fmt &= ~CS_FMT_STEREO;
cs_set_divisor(dmabuf);
if (prog_dmabuf(state))
return 0;
}
}
if (file->f_mode & FMODE_READ) {
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
stop_adc(state);
dmabuf->ready = 0;
dmabuf->SGok = 0;
if (val > 1)
dmabuf->fmt |= CS_FMT_STEREO;
else
dmabuf->fmt &= ~CS_FMT_STEREO;
cs_set_divisor(dmabuf);
if (prog_dmabuf(state))
return 0;
}
}
}
return put_user((dmabuf->fmt & CS_FMT_STEREO) ? 2 : 1,
p);
case SNDCTL_DSP_POST:
/*
* There will be a longer than normal pause in the data.
* so... do nothing, because there is nothing that we can do.
*/
return 0;
case SNDCTL_DSP_SUBDIVIDE:
if (file->f_mode & FMODE_WRITE) {
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
if (dmabuf->subdivision)
return -EINVAL;
if (get_user(val, p))
return -EFAULT;
if (val != 1 && val != 2)
return -EINVAL;
dmabuf->subdivision = val;
}
}
if (file->f_mode & FMODE_READ) {
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
if (dmabuf->subdivision)
return -EINVAL;
if (get_user(val, p))
return -EFAULT;
if (val != 1 && val != 2)
return -EINVAL;
dmabuf->subdivision = val;
}
}
return 0;
case SNDCTL_DSP_SETFRAGMENT:
if (get_user(val, p))
return -EFAULT;
if (file->f_mode & FMODE_WRITE) {
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
dmabuf->ossfragshift = val & 0xffff;
dmabuf->ossmaxfrags = (val >> 16) & 0xffff;
}
}
if (file->f_mode & FMODE_READ) {
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
dmabuf->ossfragshift = val & 0xffff;
dmabuf->ossmaxfrags = (val >> 16) & 0xffff;
}
}
return 0;
case SNDCTL_DSP_GETOSPACE:
if (!(file->f_mode & FMODE_WRITE))
return -EINVAL;
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
spin_lock_irqsave(&state->card->lock, flags);
cs_update_ptr(card, CS_TRUE);
abinfo.fragsize = dmabuf->fragsize;
abinfo.fragstotal = dmabuf->numfrag;
/*
* for mmap we always have total space available
*/
if (dmabuf->mapped)
abinfo.bytes = dmabuf->dmasize;
else
abinfo.bytes = dmabuf->dmasize - dmabuf->count;
abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
spin_unlock_irqrestore(&state->card->lock, flags);
return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
}
return -ENODEV;
case SNDCTL_DSP_GETISPACE:
if (!(file->f_mode & FMODE_READ))
return -EINVAL;
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
spin_lock_irqsave(&state->card->lock, flags);
cs_update_ptr(card, CS_TRUE);
abinfo.fragsize = dmabuf->fragsize/dmabuf->divisor;
abinfo.bytes = dmabuf->count/dmabuf->divisor;
abinfo.fragstotal = dmabuf->numfrag;
abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
spin_unlock_irqrestore(&state->card->lock, flags);
return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
}
return -ENODEV;
case SNDCTL_DSP_NONBLOCK:
file->f_flags |= O_NONBLOCK;
return 0;
case SNDCTL_DSP_GETCAPS:
return put_user(DSP_CAP_REALTIME|DSP_CAP_TRIGGER|DSP_CAP_MMAP,
p);
case SNDCTL_DSP_GETTRIGGER:
val = 0;
CS_DBGOUT(CS_IOCTL, 2, printk("cs46xx: DSP_GETTRIGGER()+\n") );
if (file->f_mode & FMODE_WRITE) {
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
if (dmabuf->enable & DAC_RUNNING)
val |= PCM_ENABLE_INPUT;
}
}
if (file->f_mode & FMODE_READ) {
if (state) {
state = card->states[0];
dmabuf = &state->dmabuf;
if (dmabuf->enable & ADC_RUNNING)
val |= PCM_ENABLE_OUTPUT;
}
}
CS_DBGOUT(CS_IOCTL, 2, printk("cs46xx: DSP_GETTRIGGER()- val=0x%x\n",val) );
return put_user(val, p);
case SNDCTL_DSP_SETTRIGGER:
if (get_user(val, p))
return -EFAULT;
if (file->f_mode & FMODE_READ) {
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
if (val & PCM_ENABLE_INPUT) {
if (!dmabuf->ready && (ret = prog_dmabuf(state)))
return ret;
start_adc(state);
} else
stop_adc(state);
}
}
if (file->f_mode & FMODE_WRITE) {
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
if (val & PCM_ENABLE_OUTPUT) {
if (!dmabuf->ready && (ret = prog_dmabuf(state)))
return ret;
start_dac(state);
} else
stop_dac(state);
}
}
return 0;
case SNDCTL_DSP_GETIPTR:
if (!(file->f_mode & FMODE_READ))
return -EINVAL;
state = card->states[0];
if (state) {
dmabuf = &state->dmabuf;
spin_lock_irqsave(&state->card->lock, flags);
cs_update_ptr(card, CS_TRUE);
cinfo.bytes = dmabuf->total_bytes/dmabuf->divisor;
cinfo.blocks = dmabuf->count/dmabuf->divisor >> dmabuf->fragshift;
cinfo.ptr = dmabuf->hwptr/dmabuf->divisor;
spin_unlock_irqrestore(&state->card->lock, flags);
if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
return -EFAULT;
return 0;
}
return -ENODEV;
case SNDCTL_DSP_GETOPTR:
if (!(file->f_mode & FMODE_WRITE))
return -EINVAL;
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
spin_lock_irqsave(&state->card->lock, flags);
cs_update_ptr(card, CS_TRUE);
cinfo.bytes = dmabuf->total_bytes;
if (dmabuf->mapped) {
cinfo.blocks = (cinfo.bytes >> dmabuf->fragshift)
- dmabuf->blocks;
CS_DBGOUT(CS_PARMS, 8,
printk("total_bytes=%d blocks=%d dmabuf->blocks=%d\n",
cinfo.bytes,cinfo.blocks,dmabuf->blocks) );
dmabuf->blocks = cinfo.bytes >> dmabuf->fragshift;
} else {
cinfo.blocks = dmabuf->count >> dmabuf->fragshift;
}
cinfo.ptr = dmabuf->hwptr;
CS_DBGOUT(CS_PARMS, 4, printk(
"cs46xx: GETOPTR bytes=%d blocks=%d ptr=%d\n",
cinfo.bytes,cinfo.blocks,cinfo.ptr) );
spin_unlock_irqrestore(&state->card->lock, flags);
if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
return -EFAULT;
return 0;
}
return -ENODEV;
case SNDCTL_DSP_SETDUPLEX:
return 0;
case SNDCTL_DSP_GETODELAY:
if (!(file->f_mode & FMODE_WRITE))
return -EINVAL;
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
spin_lock_irqsave(&state->card->lock, flags);
cs_update_ptr(card, CS_TRUE);
val = dmabuf->count;
spin_unlock_irqrestore(&state->card->lock, flags);
} else
val = 0;
return put_user(val, p);
case SOUND_PCM_READ_RATE:
if (file->f_mode & FMODE_READ)
state = card->states[0];
else
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
return put_user(dmabuf->rate, p);
}
return put_user(0, p);
case SOUND_PCM_READ_CHANNELS:
if (file->f_mode & FMODE_READ)
state = card->states[0];
else
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
return put_user((dmabuf->fmt & CS_FMT_STEREO) ? 2 : 1,
p);
}
return put_user(0, p);
case SOUND_PCM_READ_BITS:
if (file->f_mode & FMODE_READ)
state = card->states[0];
else
state = card->states[1];
if (state) {
dmabuf = &state->dmabuf;
return put_user((dmabuf->fmt & CS_FMT_16BIT) ?
AFMT_S16_LE : AFMT_U8, p);
}
return put_user(0, p);
case SNDCTL_DSP_MAPINBUF:
case SNDCTL_DSP_MAPOUTBUF:
case SNDCTL_DSP_SETSYNCRO:
case SOUND_PCM_WRITE_FILTER:
case SOUND_PCM_READ_FILTER:
return -EINVAL;
}
return -EINVAL;
}
/*
* AMP control - null AMP
*/
static void amp_none(struct cs_card *card, int change)
{
}
/*
* Crystal EAPD mode
*/
static void amp_voyetra(struct cs_card *card, int change)
{
/* Manage the EAPD bit on the Crystal 4297
and the Analog AD1885 */
int old = card->amplifier;
card->amplifier+=change;
if (card->amplifier && !old) {
/* Turn the EAPD amp on */
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL,
cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) |
0x8000);
} else if(old && !card->amplifier) {
/* Turn the EAPD amp off */
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL,
cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
~0x8000);
}
}
/*
* Game Theatre XP card - EGPIO[2] is used to enable the external amp.
*/
static void amp_hercules(struct cs_card *card, int change)
{
int old = card->amplifier;
if (!card) {
CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO
"cs46xx: amp_hercules() called before initialized.\n"));
return;
}
card->amplifier+=change;
if ((card->amplifier && !old) && !(hercules_egpio_disable)) {
CS_DBGOUT(CS_PARMS, 4, printk(KERN_INFO
"cs46xx: amp_hercules() external amp enabled\n"));
cs461x_pokeBA0(card, BA0_EGPIODR,
EGPIODR_GPOE2); /* enable EGPIO2 output */
cs461x_pokeBA0(card, BA0_EGPIOPTR,
EGPIOPTR_GPPT2); /* open-drain on output */
} else if (old && !card->amplifier) {
CS_DBGOUT(CS_PARMS, 4, printk(KERN_INFO
"cs46xx: amp_hercules() external amp disabled\n"));
cs461x_pokeBA0(card, BA0_EGPIODR, 0); /* disable */
cs461x_pokeBA0(card, BA0_EGPIOPTR, 0); /* disable */
}
}
/*
* Handle the CLKRUN on a thinkpad. We must disable CLKRUN support
* whenever we need to beat on the chip.
*
* The original idea and code for this hack comes from David Kaiser at
* Linuxcare. Perhaps one day Crystal will document their chips well
* enough to make them useful.
*/
static void clkrun_hack(struct cs_card *card, int change)
{
struct pci_dev *acpi_dev;
u16 control;
u8 pp;
unsigned long port;
int old = card->active;
card->active+=change;
acpi_dev = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
if (acpi_dev == NULL)
return; /* Not a thinkpad thats for sure */
/* Find the control port */
pci_read_config_byte(acpi_dev, 0x41, &pp);
port = pp << 8;
/* Read ACPI port */
control = inw(port + 0x10);
/* Flip CLKRUN off while running */
if (!card->active && old) {
CS_DBGOUT(CS_PARMS , 9, printk( KERN_INFO
"cs46xx: clkrun() enable clkrun - change=%d active=%d\n",
change,card->active));
outw(control|0x2000, port+0x10);
} else {
/*
* sometimes on a resume the bit is set, so always reset the bit.
*/
CS_DBGOUT(CS_PARMS , 9, printk( KERN_INFO
"cs46xx: clkrun() disable clkrun - change=%d active=%d\n",
change,card->active));
outw(control&~0x2000, port+0x10);
}
pci_dev_put(acpi_dev);
}
static int cs_open(struct inode *inode, struct file *file)
{
struct cs_card *card = file->private_data;
struct cs_state *state = NULL;
struct dmabuf *dmabuf = NULL;
struct list_head *entry;
unsigned int minor = iminor(inode);
int ret = 0;
unsigned int tmp;
CS_DBGOUT(CS_OPEN | CS_FUNCTION, 2, printk("cs46xx: cs_open()+ file=%p %s %s\n",
file, file->f_mode & FMODE_WRITE ? "FMODE_WRITE" : "",
file->f_mode & FMODE_READ ? "FMODE_READ" : "") );
list_for_each(entry, &cs46xx_devs) {
card = list_entry(entry, struct cs_card, list);
if (!((card->dev_audio ^ minor) & ~0xf))
break;
}
if (entry == &cs46xx_devs)
return -ENODEV;
if (!card) {
CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO
"cs46xx: cs_open(): Error - unable to find audio card struct\n"));
return -ENODEV;
}
/*
* hardcode state[0] for capture, [1] for playback
*/
if (file->f_mode & FMODE_READ) {
CS_DBGOUT(CS_WAVE_READ, 2, printk("cs46xx: cs_open() FMODE_READ\n") );
if (card->states[0] == NULL) {
state = card->states[0] =
kmalloc(sizeof(struct cs_state), GFP_KERNEL);
if (state == NULL)
return -ENOMEM;
memset(state, 0, sizeof(struct cs_state));
mutex_init(&state->sem);
dmabuf = &state->dmabuf;
dmabuf->pbuf = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
if (dmabuf->pbuf == NULL) {
kfree(state);
card->states[0] = NULL;
return -ENOMEM;
}
} else {
state = card->states[0];
if (state->open_mode & FMODE_READ)
return -EBUSY;
}
dmabuf->channel = card->alloc_rec_pcm_channel(card);
if (dmabuf->channel == NULL) {
kfree(card->states[0]);
card->states[0] = NULL;
return -ENODEV;
}
/* Now turn on external AMP if needed */
state->card = card;
state->card->active_ctrl(state->card, 1);
state->card->amplifier_ctrl(state->card, 1);
if ((tmp = cs46xx_powerup(card, CS_POWER_ADC))) {
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs46xx_powerup of ADC failed (0x%x)\n", tmp));
return -EIO;
}
dmabuf->channel->state = state;
/* initialize the virtual channel */
state->virt = 0;
state->magic = CS_STATE_MAGIC;
init_waitqueue_head(&dmabuf->wait);
mutex_init(&state->open_mutex);
file->private_data = card;
mutex_lock(&state->open_mutex);
/* set default sample format. According to OSS Programmer's Guide /dev/dsp
should be default to unsigned 8-bits, mono, with sample rate 8kHz and
/dev/dspW will accept 16-bits sample */
/* Default input is 8bit mono */
dmabuf->fmt &= ~CS_FMT_MASK;
dmabuf->type = CS_TYPE_ADC;
dmabuf->ossfragshift = 0;
dmabuf->ossmaxfrags = 0;
dmabuf->subdivision = 0;
cs_set_adc_rate(state, 8000);
cs_set_divisor(dmabuf);
state->open_mode |= FMODE_READ;
mutex_unlock(&state->open_mutex);
}
if (file->f_mode & FMODE_WRITE) {
CS_DBGOUT(CS_OPEN, 2, printk("cs46xx: cs_open() FMODE_WRITE\n") );
if (card->states[1] == NULL) {
state = card->states[1] =
kmalloc(sizeof(struct cs_state), GFP_KERNEL);
if (state == NULL)
return -ENOMEM;
memset(state, 0, sizeof(struct cs_state));
mutex_init(&state->sem);
dmabuf = &state->dmabuf;
dmabuf->pbuf = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
if (dmabuf->pbuf == NULL) {
kfree(state);
card->states[1] = NULL;
return -ENOMEM;
}
} else {
state = card->states[1];
if (state->open_mode & FMODE_WRITE)
return -EBUSY;
}
dmabuf->channel = card->alloc_pcm_channel(card);
if (dmabuf->channel == NULL) {
kfree(card->states[1]);
card->states[1] = NULL;
return -ENODEV;
}
/* Now turn on external AMP if needed */
state->card = card;
state->card->active_ctrl(state->card, 1);
state->card->amplifier_ctrl(state->card, 1);
if ((tmp = cs46xx_powerup(card, CS_POWER_DAC))) {
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs46xx_powerup of DAC failed (0x%x)\n", tmp));
return -EIO;
}
dmabuf->channel->state = state;
/* initialize the virtual channel */
state->virt = 1;
state->magic = CS_STATE_MAGIC;
init_waitqueue_head(&dmabuf->wait);
mutex_init(&state->open_mutex);
file->private_data = card;
mutex_lock(&state->open_mutex);
/* set default sample format. According to OSS Programmer's Guide /dev/dsp
should be default to unsigned 8-bits, mono, with sample rate 8kHz and
/dev/dspW will accept 16-bits sample */
/* Default output is 8bit mono. */
dmabuf->fmt &= ~CS_FMT_MASK;
dmabuf->type = CS_TYPE_DAC;
dmabuf->ossfragshift = 0;
dmabuf->ossmaxfrags = 0;
dmabuf->subdivision = 0;
cs_set_dac_rate(state, 8000);
cs_set_divisor(dmabuf);
state->open_mode |= FMODE_WRITE;
mutex_unlock(&state->open_mutex);
if ((ret = prog_dmabuf(state)))
return ret;
}
CS_DBGOUT(CS_OPEN | CS_FUNCTION, 2, printk("cs46xx: cs_open()- 0\n"));
return nonseekable_open(inode, file);
}
static int cs_release(struct inode *inode, struct file *file)
{
struct cs_card *card = file->private_data;
struct dmabuf *dmabuf;
struct cs_state *state;
unsigned int tmp;
CS_DBGOUT(CS_RELEASE | CS_FUNCTION, 2, printk("cs46xx: cs_release()+ file=%p %s %s\n",
file, file->f_mode & FMODE_WRITE ? "FMODE_WRITE" : "",
file->f_mode & FMODE_READ ? "FMODE_READ" : ""));
if (!(file->f_mode & (FMODE_WRITE | FMODE_READ)))
return -EINVAL;
state = card->states[1];
if (state) {
if ((state->open_mode & FMODE_WRITE) & (file->f_mode & FMODE_WRITE)) {
CS_DBGOUT(CS_RELEASE, 2, printk("cs46xx: cs_release() FMODE_WRITE\n"));
dmabuf = &state->dmabuf;
cs_clear_tail(state);
drain_dac(state, file->f_flags & O_NONBLOCK);
/* stop DMA state machine and free DMA buffers/channels */
mutex_lock(&state->open_mutex);
stop_dac(state);
dealloc_dmabuf(state);
state->card->free_pcm_channel(state->card, dmabuf->channel->num);
free_page((unsigned long)state->dmabuf.pbuf);
/* we're covered by the open_mutex */
mutex_unlock(&state->open_mutex);
state->card->states[state->virt] = NULL;
state->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
if ((tmp = cs461x_powerdown(card, CS_POWER_DAC, CS_FALSE))) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
"cs46xx: cs_release_mixdev() powerdown DAC failure (0x%x)\n",tmp) );
}
/* Now turn off external AMP if needed */
state->card->amplifier_ctrl(state->card, -1);
state->card->active_ctrl(state->card, -1);
kfree(state);
}
}
state = card->states[0];
if (state) {
if ((state->open_mode & FMODE_READ) & (file->f_mode & FMODE_READ)) {
CS_DBGOUT(CS_RELEASE, 2, printk("cs46xx: cs_release() FMODE_READ\n"));
dmabuf = &state->dmabuf;
mutex_lock(&state->open_mutex);
stop_adc(state);
dealloc_dmabuf(state);
state->card->free_pcm_channel(state->card, dmabuf->channel->num);
free_page((unsigned long)state->dmabuf.pbuf);
/* we're covered by the open_mutex */
mutex_unlock(&state->open_mutex);
state->card->states[state->virt] = NULL;
state->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
if ((tmp = cs461x_powerdown(card, CS_POWER_ADC, CS_FALSE))) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
"cs46xx: cs_release_mixdev() powerdown ADC failure (0x%x)\n",tmp) );
}
/* Now turn off external AMP if needed */
state->card->amplifier_ctrl(state->card, -1);
state->card->active_ctrl(state->card, -1);
kfree(state);
}
}
CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 2, printk("cs46xx: cs_release()- 0\n"));
return 0;
}
static void printpm(struct cs_card *s)
{
CS_DBGOUT(CS_PM, 9, printk("pm struct:\n"));
CS_DBGOUT(CS_PM, 9, printk("flags:0x%x u32CLKCR1_SAVE: 0%x u32SSPMValue: 0x%x\n",
(unsigned)s->pm.flags,s->pm.u32CLKCR1_SAVE,s->pm.u32SSPMValue));
CS_DBGOUT(CS_PM, 9, printk("u32PPLVCvalue: 0x%x u32PPRVCvalue: 0x%x\n",
s->pm.u32PPLVCvalue,s->pm.u32PPRVCvalue));
CS_DBGOUT(CS_PM, 9, printk("u32FMLVCvalue: 0x%x u32FMRVCvalue: 0x%x\n",
s->pm.u32FMLVCvalue,s->pm.u32FMRVCvalue));
CS_DBGOUT(CS_PM, 9, printk("u32GPIORvalue: 0x%x u32JSCTLvalue: 0x%x\n",
s->pm.u32GPIORvalue,s->pm.u32JSCTLvalue));
CS_DBGOUT(CS_PM, 9, printk("u32SSCR: 0x%x u32SRCSA: 0x%x\n",
s->pm.u32SSCR,s->pm.u32SRCSA));
CS_DBGOUT(CS_PM, 9, printk("u32DacASR: 0x%x u32AdcASR: 0x%x\n",
s->pm.u32DacASR,s->pm.u32AdcASR));
CS_DBGOUT(CS_PM, 9, printk("u32DacSR: 0x%x u32AdcSR: 0x%x\n",
s->pm.u32DacSR,s->pm.u32AdcSR));
CS_DBGOUT(CS_PM, 9, printk("u32MIDCR_Save: 0x%x\n",
s->pm.u32MIDCR_Save));
CS_DBGOUT(CS_PM, 9, printk("u32AC97_powerdown: 0x%x _general_purpose 0x%x\n",
s->pm.u32AC97_powerdown,s->pm.u32AC97_general_purpose));
CS_DBGOUT(CS_PM, 9, printk("u32AC97_master_volume: 0x%x\n",
s->pm.u32AC97_master_volume));
CS_DBGOUT(CS_PM, 9, printk("u32AC97_headphone_volume: 0x%x\n",
s->pm.u32AC97_headphone_volume));
CS_DBGOUT(CS_PM, 9, printk("u32AC97_master_volume_mono: 0x%x\n",
s->pm.u32AC97_master_volume_mono));
CS_DBGOUT(CS_PM, 9, printk("u32AC97_pcm_out_volume: 0x%x\n",
s->pm.u32AC97_pcm_out_volume));
CS_DBGOUT(CS_PM, 9, printk("dmabuf_swptr_play: 0x%x dmabuf_count_play: %d\n",
s->pm.dmabuf_swptr_play,s->pm.dmabuf_count_play));
CS_DBGOUT(CS_PM, 9, printk("dmabuf_swptr_capture: 0x%x dmabuf_count_capture: %d\n",
s->pm.dmabuf_swptr_capture,s->pm.dmabuf_count_capture));
}
/****************************************************************************
*
* Suspend - save the ac97 regs, mute the outputs and power down the part.
*
****************************************************************************/
static void cs46xx_ac97_suspend(struct cs_card *card)
{
int Count,i;
struct ac97_codec *dev=card->ac97_codec[0];
unsigned int tmp;
CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_suspend()+\n"));
if (card->states[1]) {
stop_dac(card->states[1]);
resync_dma_ptrs(card->states[1]);
}
if (card->states[0]) {
stop_adc(card->states[0]);
resync_dma_ptrs(card->states[0]);
}
for (Count = 0x2, i = 0; (Count <= CS46XX_AC97_HIGHESTREGTORESTORE)
&& (i < CS46XX_AC97_NUMBER_RESTORE_REGS);
Count += 2, i++) {
card->pm.ac97[i] = cs_ac97_get(dev, BA0_AC97_RESET + Count);
}
/*
* Save the ac97 volume registers as well as the current powerdown state.
* Now, mute the all the outputs (master, headphone, and mono), as well
* as the PCM volume, in preparation for powering down the entire part.
card->pm.u32AC97_master_volume = (u32)cs_ac97_get( dev,
(u8)BA0_AC97_MASTER_VOLUME);
card->pm.u32AC97_headphone_volume = (u32)cs_ac97_get(dev,
(u8)BA0_AC97_HEADPHONE_VOLUME);
card->pm.u32AC97_master_volume_mono = (u32)cs_ac97_get(dev,
(u8)BA0_AC97_MASTER_VOLUME_MONO);
card->pm.u32AC97_pcm_out_volume = (u32)cs_ac97_get(dev,
(u8)BA0_AC97_PCM_OUT_VOLUME);
*/
/*
* mute the outputs
*/
cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME, 0x8000);
cs_ac97_set(dev, (u8)BA0_AC97_HEADPHONE_VOLUME, 0x8000);
cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME_MONO, 0x8000);
cs_ac97_set(dev, (u8)BA0_AC97_PCM_OUT_VOLUME, 0x8000);
/*
* save the registers that cause pops
*/
card->pm.u32AC97_powerdown = (u32)cs_ac97_get(dev, (u8)AC97_POWER_CONTROL);
card->pm.u32AC97_general_purpose = (u32)cs_ac97_get(dev, (u8)BA0_AC97_GENERAL_PURPOSE);
/*
* And power down everything on the AC97 codec.
* well, for now, only power down the DAC/ADC and MIXER VREFON components.
* trouble with removing VREF.
*/
if ((tmp = cs461x_powerdown(card, CS_POWER_DAC | CS_POWER_ADC |
CS_POWER_MIXVON, CS_TRUE))) {
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs46xx_ac97_suspend() failure (0x%x)\n",tmp));
}
CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_suspend()-\n"));
}
/****************************************************************************
*
* Resume - power up the part and restore its registers..
*
****************************************************************************/
static void cs46xx_ac97_resume(struct cs_card *card)
{
int Count,i;
struct ac97_codec *dev=card->ac97_codec[0];
CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_resume()+\n"));
/*
* First, we restore the state of the general purpose register. This
* contains the mic select (mic1 or mic2) and if we restore this after
* we restore the mic volume/boost state and mic2 was selected at
* suspend time, we will end up with a brief period of time where mic1
* is selected with the volume/boost settings for mic2, causing
* acoustic feedback. So we restore the general purpose register
* first, thereby getting the correct mic selected before we restore
* the mic volume/boost.
*/
cs_ac97_set(dev, (u8)BA0_AC97_GENERAL_PURPOSE,
(u16)card->pm.u32AC97_general_purpose);
/*
* Now, while the outputs are still muted, restore the state of power
* on the AC97 part.
*/
cs_ac97_set(dev, (u8)BA0_AC97_POWERDOWN, (u16)card->pm.u32AC97_powerdown);
mdelay(5 * cs_laptop_wait);
/*
* Restore just the first set of registers, from register number
* 0x02 to the register number that ulHighestRegToRestore specifies.
*/
for (Count = 0x2, i=0; (Count <= CS46XX_AC97_HIGHESTREGTORESTORE) &&
(i < CS46XX_AC97_NUMBER_RESTORE_REGS); Count += 2, i++) {
cs_ac97_set(dev, (u8)(BA0_AC97_RESET + Count), (u16)card->pm.ac97[i]);
}
/* Check if we have to init the amplifier */
if (card->amp_init)
card->amp_init(card);
CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_resume()-\n"));
}
static int cs46xx_restart_part(struct cs_card *card)
{
struct dmabuf *dmabuf;
CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
printk( "cs46xx: cs46xx_restart_part()+\n"));
if (card->states[1]) {
dmabuf = &card->states[1]->dmabuf;
dmabuf->ready = 0;
resync_dma_ptrs(card->states[1]);
cs_set_divisor(dmabuf);
if (__prog_dmabuf(card->states[1])) {
CS_DBGOUT(CS_PM | CS_ERROR, 1,
printk("cs46xx: cs46xx_restart_part()- (-1) prog_dmabuf() dac error\n"));
return -1;
}
cs_set_dac_rate(card->states[1], dmabuf->rate);
}
if (card->states[0]) {
dmabuf = &card->states[0]->dmabuf;
dmabuf->ready = 0;
resync_dma_ptrs(card->states[0]);
cs_set_divisor(dmabuf);
if (__prog_dmabuf(card->states[0])) {
CS_DBGOUT(CS_PM | CS_ERROR, 1,
printk("cs46xx: cs46xx_restart_part()- (-1) prog_dmabuf() adc error\n"));
return -1;
}
cs_set_adc_rate(card->states[0], dmabuf->rate);
}
card->pm.flags |= CS46XX_PM_RESUMED;
if (card->states[0])
start_adc(card->states[0]);
if (card->states[1])
start_dac(card->states[1]);
card->pm.flags |= CS46XX_PM_IDLE;
card->pm.flags &= ~(CS46XX_PM_SUSPENDING | CS46XX_PM_SUSPENDED
| CS46XX_PM_RESUMING | CS46XX_PM_RESUMED);
if (card->states[0])
wake_up(&card->states[0]->dmabuf.wait);
if (card->states[1])
wake_up(&card->states[1]->dmabuf.wait);
CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
printk( "cs46xx: cs46xx_restart_part()-\n"));
return 0;
}
static void cs461x_reset(struct cs_card *card);
static void cs461x_proc_stop(struct cs_card *card);
static int cs46xx_suspend(struct cs_card *card, pm_message_t state)
{
unsigned int tmp;
CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
printk("cs46xx: cs46xx_suspend()+ flags=0x%x s=%p\n",
(unsigned)card->pm.flags,card));
/*
* check the current state, only suspend if IDLE
*/
if (!(card->pm.flags & CS46XX_PM_IDLE)) {
CS_DBGOUT(CS_PM | CS_ERROR, 2,
printk("cs46xx: cs46xx_suspend() unable to suspend, not IDLE\n"));
return 1;
}
card->pm.flags &= ~CS46XX_PM_IDLE;
card->pm.flags |= CS46XX_PM_SUSPENDING;
card->active_ctrl(card,1);
tmp = cs461x_peek(card, BA1_PFIE);
tmp &= ~0x0000f03f;
tmp |= 0x00000010;
cs461x_poke(card, BA1_PFIE, tmp); /* playback interrupt disable */
tmp = cs461x_peek(card, BA1_CIE);
tmp &= ~0x0000003f;
tmp |= 0x00000011;
cs461x_poke(card, BA1_CIE, tmp); /* capture interrupt disable */
/*
* Stop playback DMA.
*/
tmp = cs461x_peek(card, BA1_PCTL);
cs461x_poke(card, BA1_PCTL, tmp & 0x0000ffff);
/*
* Stop capture DMA.
*/
tmp = cs461x_peek(card, BA1_CCTL);
cs461x_poke(card, BA1_CCTL, tmp & 0xffff0000);
if (card->states[1]) {
card->pm.dmabuf_swptr_play = card->states[1]->dmabuf.swptr;
card->pm.dmabuf_count_play = card->states[1]->dmabuf.count;
}
if (card->states[0]) {
card->pm.dmabuf_swptr_capture = card->states[0]->dmabuf.swptr;
card->pm.dmabuf_count_capture = card->states[0]->dmabuf.count;
}
cs46xx_ac97_suspend(card);
/*
* Reset the processor.
*/
cs461x_reset(card);
cs461x_proc_stop(card);
/*
* Power down the DAC and ADC. For now leave the other areas on.
*/
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, 0x0300);
/*
* Power down the PLL.
*/
cs461x_pokeBA0(card, BA0_CLKCR1, 0);
/*
* Turn off the Processor by turning off the software clock enable flag in
* the clock control register.
*/
tmp = cs461x_peekBA0(card, BA0_CLKCR1) & ~CLKCR1_SWCE;
cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
card->active_ctrl(card,-1);
card->pm.flags &= ~CS46XX_PM_SUSPENDING;
card->pm.flags |= CS46XX_PM_SUSPENDED;
printpm(card);
CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
printk("cs46xx: cs46xx_suspend()- flags=0x%x\n",
(unsigned)card->pm.flags));
return 0;
}
static int cs46xx_resume(struct cs_card *card)
{
int i;
CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
printk( "cs46xx: cs46xx_resume()+ flags=0x%x\n",
(unsigned)card->pm.flags));
if (!(card->pm.flags & CS46XX_PM_SUSPENDED)) {
CS_DBGOUT(CS_PM | CS_ERROR, 2,
printk("cs46xx: cs46xx_resume() unable to resume, not SUSPENDED\n"));
return 1;
}
card->pm.flags |= CS46XX_PM_RESUMING;
card->pm.flags &= ~CS46XX_PM_SUSPENDED;
printpm(card);
card->active_ctrl(card, 1);
for (i = 0; i < 5; i++) {
if (cs_hardware_init(card) != 0) {
CS_DBGOUT(CS_PM | CS_ERROR, 4, printk(
"cs46xx: cs46xx_resume()- ERROR in cs_hardware_init()\n"));
mdelay(10 * cs_laptop_wait);
cs461x_reset(card);
continue;
}
break;
}
if (i >= 4) {
CS_DBGOUT(CS_PM | CS_ERROR, 1, printk(
"cs46xx: cs46xx_resume()- cs_hardware_init() failed, retried %d times.\n",i));
return 0;
}
if (cs46xx_restart_part(card)) {
CS_DBGOUT(CS_PM | CS_ERROR, 4, printk(
"cs46xx: cs46xx_resume(): cs46xx_restart_part() returned error\n"));
}
card->active_ctrl(card, -1);
CS_DBGOUT(CS_PM | CS_FUNCTION, 4, printk("cs46xx: cs46xx_resume()- flags=0x%x\n",
(unsigned)card->pm.flags));
return 0;
}
static /*const*/ struct file_operations cs461x_fops = {
CS_OWNER CS_THIS_MODULE
.llseek = no_llseek,
.read = cs_read,
.write = cs_write,
.poll = cs_poll,
.ioctl = cs_ioctl,
.mmap = cs_mmap,
.open = cs_open,
.release = cs_release,
};
/* Write AC97 codec registers */
static u16 _cs_ac97_get(struct ac97_codec *dev, u8 reg)
{
struct cs_card *card = dev->private_data;
int count,loopcnt;
unsigned int tmp;
u16 ret;
/*
* 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
* 2. Write ACCDA = Command Data Register = 470h for data to write to AC97
* 3. Write ACCTL = Control Register = 460h for initiating the write
* 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h
* 5. if DCV not cleared, break and return error
* 6. Read ACSTS = Status Register = 464h, check VSTS bit
*/
cs461x_peekBA0(card, BA0_ACSDA);
/*
* Setup the AC97 control registers on the CS461x to send the
* appropriate command to the AC97 to perform the read.
* ACCAD = Command Address Register = 46Ch
* ACCDA = Command Data Register = 470h
* ACCTL = Control Register = 460h
* set DCV - will clear when process completed
* set CRW - Read command
* set VFRM - valid frame enabled
* set ESYN - ASYNC generation enabled
* set RSTN - ARST# inactive, AC97 codec not reset
*/
cs461x_pokeBA0(card, BA0_ACCAD, reg);
cs461x_pokeBA0(card, BA0_ACCDA, 0);
cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_DCV | ACCTL_CRW |
ACCTL_VFRM | ACCTL_ESYN |
ACCTL_RSTN);
/*
* Wait for the read to occur.
*/
if (!(card->pm.flags & CS46XX_PM_IDLE))
loopcnt = 2000;
else
loopcnt = 500 * cs_laptop_wait;
loopcnt *= cs_laptop_wait;
for (count = 0; count < loopcnt; count++) {
/*
* First, we want to wait for a short time.
*/
udelay(10 * cs_laptop_wait);
/*
* Now, check to see if the read has completed.
* ACCTL = 460h, DCV should be reset by now and 460h = 17h
*/
if (!(cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV))
break;
}
/*
* Make sure the read completed.
*/
if (cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: AC'97 read problem (ACCTL_DCV), reg = 0x%x returning 0xffff\n", reg));
return 0xffff;
}
/*
* Wait for the valid status bit to go active.
*/
if (!(card->pm.flags & CS46XX_PM_IDLE))
loopcnt = 2000;
else
loopcnt = 1000;
loopcnt *= cs_laptop_wait;
for (count = 0; count < loopcnt; count++) {
/*
* Read the AC97 status register.
* ACSTS = Status Register = 464h
* VSTS - Valid Status
*/
if (cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_VSTS)
break;
udelay(10 * cs_laptop_wait);
}
/*
* Make sure we got valid status.
*/
if (!((tmp = cs461x_peekBA0(card, BA0_ACSTS)) & ACSTS_VSTS)) {
CS_DBGOUT(CS_ERROR, 2, printk(KERN_WARNING
"cs46xx: AC'97 read problem (ACSTS_VSTS), reg = 0x%x val=0x%x 0xffff \n",
reg, tmp));
return 0xffff;
}
/*
* Read the data returned from the AC97 register.
* ACSDA = Status Data Register = 474h
*/
CS_DBGOUT(CS_FUNCTION, 9, printk(KERN_INFO
"cs46xx: cs_ac97_get() reg = 0x%x, val = 0x%x, BA0_ACCAD = 0x%x\n",
reg, cs461x_peekBA0(card, BA0_ACSDA),
cs461x_peekBA0(card, BA0_ACCAD)));
ret = cs461x_peekBA0(card, BA0_ACSDA);
return ret;
}
static u16 cs_ac97_get(struct ac97_codec *dev, u8 reg)
{
u16 ret;
struct cs_card *card = dev->private_data;
spin_lock(&card->ac97_lock);
ret = _cs_ac97_get(dev, reg);
spin_unlock(&card->ac97_lock);
return ret;
}
static void cs_ac97_set(struct ac97_codec *dev, u8 reg, u16 val)
{
struct cs_card *card = dev->private_data;
int count;
int val2 = 0;
spin_lock(&card->ac97_lock);
if (reg == AC97_CD_VOL)
val2 = _cs_ac97_get(dev, AC97_CD_VOL);
/*
* 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
* 2. Write ACCDA = Command Data Register = 470h for data to write to AC97
* 3. Write ACCTL = Control Register = 460h for initiating the write
* 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h
* 5. if DCV not cleared, break and return error
*/
/*
* Setup the AC97 control registers on the CS461x to send the
* appropriate command to the AC97 to perform the read.
* ACCAD = Command Address Register = 46Ch
* ACCDA = Command Data Register = 470h
* ACCTL = Control Register = 460h
* set DCV - will clear when process completed
* reset CRW - Write command
* set VFRM - valid frame enabled
* set ESYN - ASYNC generation enabled
* set RSTN - ARST# inactive, AC97 codec not reset
*/
cs461x_pokeBA0(card, BA0_ACCAD, reg);
cs461x_pokeBA0(card, BA0_ACCDA, val);
cs461x_peekBA0(card, BA0_ACCTL);
cs461x_pokeBA0(card, BA0_ACCTL, 0 | ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_DCV | ACCTL_VFRM |
ACCTL_ESYN | ACCTL_RSTN);
for (count = 0; count < 1000; count++) {
/*
* First, we want to wait for a short time.
*/
udelay(10 * cs_laptop_wait);
/*
* Now, check to see if the write has completed.
* ACCTL = 460h, DCV should be reset by now and 460h = 07h
*/
if (!(cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV))
break;
}
/*
* Make sure the write completed.
*/
if (cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: AC'97 write problem, reg = 0x%x, val = 0x%x\n", reg, val));
}
spin_unlock(&card->ac97_lock);
/*
* Adjust power if the mixer is selected/deselected according
* to the CD.
*
* IF the CD is a valid input source (mixer or direct) AND
* the CD is not muted THEN power is needed
*
* We do two things. When record select changes the input to
* add/remove the CD we adjust the power count if the CD is
* unmuted.
*
* When the CD mute changes we adjust the power level if the
* CD was a valid input.
*
* We also check for CD volume != 0, as the CD mute isn't
* normally tweaked from userspace.
*/
/* CD mute change ? */
if (reg == AC97_CD_VOL) {
/* Mute bit change ? */
if ((val2^val) & 0x8000 ||
((val2 == 0x1f1f || val == 0x1f1f) && val2 != val)) {
/* This is a hack but its cleaner than the alternatives.
Right now card->ac97_codec[0] might be NULL as we are
still doing codec setup. This does an early assignment
to avoid the problem if it occurs */
if (card->ac97_codec[0] == NULL)
card->ac97_codec[0] = dev;
/* Mute on */
if (val & 0x8000 || val == 0x1f1f)
card->amplifier_ctrl(card, -1);
else { /* Mute off power on */
if (card->amp_init)
card->amp_init(card);
card->amplifier_ctrl(card, 1);
}
}
}
}
/* OSS /dev/mixer file operation methods */
static int cs_open_mixdev(struct inode *inode, struct file *file)
{
int i = 0;
unsigned int minor = iminor(inode);
struct cs_card *card = NULL;
struct list_head *entry;
unsigned int tmp;
CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4,
printk(KERN_INFO "cs46xx: cs_open_mixdev()+\n"));
list_for_each(entry, &cs46xx_devs) {
card = list_entry(entry, struct cs_card, list);
for (i = 0; i < NR_AC97; i++)
if (card->ac97_codec[i] != NULL &&
card->ac97_codec[i]->dev_mixer == minor)
goto match;
}
if (!card) {
CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2,
printk(KERN_INFO "cs46xx: cs46xx_open_mixdev()- -ENODEV\n"));
return -ENODEV;
}
match:
if (!card->ac97_codec[i])
return -ENODEV;
file->private_data = card->ac97_codec[i];
card->active_ctrl(card,1);
if (!CS_IN_USE(&card->mixer_use_cnt)) {
if ((tmp = cs46xx_powerup(card, CS_POWER_MIXVON))) {
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs_open_mixdev() powerup failure (0x%x)\n", tmp));
return -EIO;
}
}
card->amplifier_ctrl(card, 1);
CS_INC_USE_COUNT(&card->mixer_use_cnt);
CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4,
printk(KERN_INFO "cs46xx: cs_open_mixdev()- 0\n"));
return nonseekable_open(inode, file);
}
static int cs_release_mixdev(struct inode *inode, struct file *file)
{
unsigned int minor = iminor(inode);
struct cs_card *card = NULL;
struct list_head *entry;
int i;
unsigned int tmp;
CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 4,
printk(KERN_INFO "cs46xx: cs_release_mixdev()+\n"));
list_for_each(entry, &cs46xx_devs)
{
card = list_entry(entry, struct cs_card, list);
for (i = 0; i < NR_AC97; i++)
if (card->ac97_codec[i] != NULL &&
card->ac97_codec[i]->dev_mixer == minor)
goto match;
}
if (!card) {
CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2,
printk(KERN_INFO "cs46xx: cs46xx_open_mixdev()- -ENODEV\n"));
return -ENODEV;
}
match:
if (!CS_DEC_AND_TEST(&card->mixer_use_cnt)) {
CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 4,
printk(KERN_INFO "cs46xx: cs_release_mixdev()- no powerdown, usecnt>0\n"));
card->active_ctrl(card, -1);
card->amplifier_ctrl(card, -1);
return 0;
}
/*
* ok, no outstanding mixer opens, so powerdown.
*/
if ((tmp = cs461x_powerdown(card, CS_POWER_MIXVON, CS_FALSE))) {
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs_release_mixdev() powerdown MIXVON failure (0x%x)\n", tmp));
card->active_ctrl(card, -1);
card->amplifier_ctrl(card, -1);
return -EIO;
}
card->active_ctrl(card, -1);
card->amplifier_ctrl(card, -1);
CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 4,
printk(KERN_INFO "cs46xx: cs_release_mixdev()- 0\n"));
return 0;
}
static int cs_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg)
{
struct ac97_codec *codec = file->private_data;
struct cs_card *card = NULL;
struct list_head *entry;
unsigned long __user *p = (long __user *)arg;
#if CSDEBUG_INTERFACE
int val;
if ( (cmd == SOUND_MIXER_CS_GETDBGMASK) ||
(cmd == SOUND_MIXER_CS_SETDBGMASK) ||
(cmd == SOUND_MIXER_CS_GETDBGLEVEL) ||
(cmd == SOUND_MIXER_CS_SETDBGLEVEL) ||
(cmd == SOUND_MIXER_CS_APM)) {
switch (cmd) {
case SOUND_MIXER_CS_GETDBGMASK:
return put_user(cs_debugmask, p);
case SOUND_MIXER_CS_GETDBGLEVEL:
return put_user(cs_debuglevel, p);
case SOUND_MIXER_CS_SETDBGMASK:
if (get_user(val, p))
return -EFAULT;
cs_debugmask = val;
return 0;
case SOUND_MIXER_CS_SETDBGLEVEL:
if (get_user(val, p))
return -EFAULT;
cs_debuglevel = val;
return 0;
case SOUND_MIXER_CS_APM:
if (get_user(val, p))
return -EFAULT;
if (val == CS_IOCTL_CMD_SUSPEND) {
list_for_each(entry, &cs46xx_devs) {
card = list_entry(entry, struct cs_card, list);
cs46xx_suspend(card, PMSG_ON);
}
} else if (val == CS_IOCTL_CMD_RESUME) {
list_for_each(entry, &cs46xx_devs) {
card = list_entry(entry, struct cs_card, list);
cs46xx_resume(card);
}
} else {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
"cs46xx: mixer_ioctl(): invalid APM cmd (%d)\n",
val));
}
return 0;
default:
CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
"cs46xx: mixer_ioctl(): ERROR unknown debug cmd\n"));
return 0;
}
}
#endif
return codec->mixer_ioctl(codec, cmd, arg);
}
static /*const*/ struct file_operations cs_mixer_fops = {
CS_OWNER CS_THIS_MODULE
.llseek = no_llseek,
.ioctl = cs_ioctl_mixdev,
.open = cs_open_mixdev,
.release = cs_release_mixdev,
};
/* AC97 codec initialisation. */
static int __init cs_ac97_init(struct cs_card *card)
{
int num_ac97 = 0;
int ready_2nd = 0;
struct ac97_codec *codec;
u16 eid;
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_ac97_init()+\n") );
for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
if ((codec = ac97_alloc_codec()) == NULL)
return -ENOMEM;
/* initialize some basic codec information, other fields will be filled
in ac97_probe_codec */
codec->private_data = card;
codec->id = num_ac97;
codec->codec_read = cs_ac97_get;
codec->codec_write = cs_ac97_set;
if (ac97_probe_codec(codec) == 0) {
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_ac97_init()- codec number %d not found\n",
num_ac97) );
card->ac97_codec[num_ac97] = NULL;
break;
}
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_ac97_init() found codec %d\n",num_ac97));
eid = cs_ac97_get(codec, AC97_EXTENDED_ID);
if (eid == 0xFFFF) {
printk(KERN_WARNING "cs46xx: codec %d not present\n",num_ac97);
ac97_release_codec(codec);
break;
}
card->ac97_features = eid;
if ((codec->dev_mixer = register_sound_mixer(&cs_mixer_fops, -1)) < 0) {
printk(KERN_ERR "cs46xx: couldn't register mixer!\n");
ac97_release_codec(codec);
break;
}
card->ac97_codec[num_ac97] = codec;
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_ac97_init() ac97_codec[%d] set to %p\n",
(unsigned int)num_ac97,
codec));
/* if there is no secondary codec at all, don't probe any more */
if (!ready_2nd)
{
num_ac97 += 1;
break;
}
}
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_ac97_init()- %d\n", (unsigned int)num_ac97));
return num_ac97;
}
/*
* load the static image into the DSP
*/
#include "cs461x_image.h"
static void cs461x_download_image(struct cs_card *card)
{
unsigned i, j, temp1, temp2, offset, count;
unsigned char __iomem *pBA1 = ioremap(card->ba1_addr, 0x40000);
for (i = 0; i < CLEAR__COUNT; i++) {
offset = ClrStat[i].BA1__DestByteOffset;
count = ClrStat[i].BA1__SourceSize;
for (temp1 = offset; temp1 < (offset + count); temp1 += 4)
writel(0, pBA1+temp1);
}
for (i = 0; i < FILL__COUNT; i++) {
temp2 = FillStat[i].Offset;
for (j = 0; j < (FillStat[i].Size) / 4; j++) {
temp1 = (FillStat[i]).pFill[j];
writel(temp1, pBA1+temp2 + j * 4);
}
}
iounmap(pBA1);
}
/*
* Chip reset
*/
static void cs461x_reset(struct cs_card *card)
{
int idx;
/*
* Write the reset bit of the SP control register.
*/
cs461x_poke(card, BA1_SPCR, SPCR_RSTSP);
/*
* Write the control register.
*/
cs461x_poke(card, BA1_SPCR, SPCR_DRQEN);
/*
* Clear the trap registers.
*/
for (idx = 0; idx < 8; idx++) {
cs461x_poke(card, BA1_DREG, DREG_REGID_TRAP_SELECT + idx);
cs461x_poke(card, BA1_TWPR, 0xFFFF);
}
cs461x_poke(card, BA1_DREG, 0);
/*
* Set the frame timer to reflect the number of cycles per frame.
*/
cs461x_poke(card, BA1_FRMT, 0xadf);
}
static void cs461x_clear_serial_FIFOs(struct cs_card *card, int type)
{
int idx, loop, startfifo=0, endfifo=0, powerdown1 = 0;
unsigned int tmp;
/*
* See if the devices are powered down. If so, we must power them up first
* or they will not respond.
*/
if (!((tmp = cs461x_peekBA0(card, BA0_CLKCR1)) & CLKCR1_SWCE)) {
cs461x_pokeBA0(card, BA0_CLKCR1, tmp | CLKCR1_SWCE);
powerdown1 = 1;
}
/*
* We want to clear out the serial port FIFOs so we don't end up playing
* whatever random garbage happens to be in them. We fill the sample FIFOS
* with zero (silence).
*/
cs461x_pokeBA0(card, BA0_SERBWP, 0);
/*
* Check for which FIFO locations to clear, if we are currently
* playing or capturing then we don't want to put in 128 bytes of
* "noise".
*/
if (type & CS_TYPE_DAC) {
startfifo = 128;
endfifo = 256;
}
if (type & CS_TYPE_ADC) {
startfifo = 0;
if (!endfifo)
endfifo = 128;
}
/*
* Fill sample FIFO locations (256 locations total).
*/
for (idx = startfifo; idx < endfifo; idx++) {
/*
* Make sure the previous FIFO write operation has completed.
*/
for (loop = 0; loop < 5; loop++) {
udelay(50);
if (!(cs461x_peekBA0(card, BA0_SERBST) & SERBST_WBSY))
break;
}
if (cs461x_peekBA0(card, BA0_SERBST) & SERBST_WBSY) {
if (powerdown1)
cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
}
/*
* Write the serial port FIFO index.
*/
cs461x_pokeBA0(card, BA0_SERBAD, idx);
/*
* Tell the serial port to load the new value into the FIFO location.
*/
cs461x_pokeBA0(card, BA0_SERBCM, SERBCM_WRC);
}
/*
* Now, if we powered up the devices, then power them back down again.
* This is kinda ugly, but should never happen.
*/
if (powerdown1)
cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
}
static int cs461x_powerdown(struct cs_card *card, unsigned int type, int suspendflag)
{
int count;
unsigned int tmp=0,muted=0;
CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO
"cs46xx: cs461x_powerdown()+ type=0x%x\n",type));
if (!cs_powerdown && !suspendflag) {
CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO
"cs46xx: cs461x_powerdown() DISABLED exiting\n"));
return 0;
}
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO
"cs46xx: cs461x_powerdown() powerdown reg=0x%x\n",tmp));
/*
* if powering down only the VREF, and not powering down the DAC/ADC,
* then do not power down the VREF, UNLESS both the DAC and ADC are not
* currently powered down. If powering down DAC and ADC, then
* it is possible to power down the VREF (ON).
*/
if (((type & CS_POWER_MIXVON) &&
(!(type & CS_POWER_ADC) || (!(type & CS_POWER_DAC))))
&&
((tmp & CS_AC97_POWER_CONTROL_ADC_ON) ||
(tmp & CS_AC97_POWER_CONTROL_DAC_ON))) {
CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO
"cs46xx: cs461x_powerdown()- 0 unable to powerdown. tmp=0x%x\n",tmp));
return 0;
}
/*
* for now, always keep power to the mixer block.
* not sure why it's a problem but it seems to be if we power off.
*/
type &= ~CS_POWER_MIXVON;
type &= ~CS_POWER_MIXVOFF;
/*
* Power down indicated areas.
*/
if (type & CS_POWER_MIXVOFF) {
CS_DBGOUT(CS_FUNCTION, 4,
printk(KERN_INFO "cs46xx: cs461x_powerdown()+ MIXVOFF\n"));
/*
* Power down the MIXER (VREF ON) on the AC97 card.
*/
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (tmp & CS_AC97_POWER_CONTROL_MIXVOFF_ON) {
if (!muted) {
cs_mute(card, CS_TRUE);
muted = 1;
}
tmp |= CS_AC97_POWER_CONTROL_MIXVOFF;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVOFF_ON))
break;
}
/*
* Check the status..
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVOFF_ON) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerdown MIXVOFF failed\n"));
return 1;
}
}
}
if (type & CS_POWER_MIXVON) {
CS_DBGOUT(CS_FUNCTION, 4,
printk(KERN_INFO "cs46xx: cs461x_powerdown()+ MIXVON\n"));
/*
* Power down the MIXER (VREF ON) on the AC97 card.
*/
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (tmp & CS_AC97_POWER_CONTROL_MIXVON_ON) {
if (!muted) {
cs_mute(card, CS_TRUE);
muted = 1;
}
tmp |= CS_AC97_POWER_CONTROL_MIXVON;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp);
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVON_ON))
break;
}
/*
* Check the status..
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVON_ON) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerdown MIXVON failed\n"));
return 1;
}
}
}
if (type & CS_POWER_ADC) {
/*
* Power down the ADC on the AC97 card.
*/
CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO "cs46xx: cs461x_powerdown()+ ADC\n"));
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (tmp & CS_AC97_POWER_CONTROL_ADC_ON) {
if (!muted) {
cs_mute(card, CS_TRUE);
muted = 1;
}
tmp |= CS_AC97_POWER_CONTROL_ADC;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp);
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_ADC_ON))
break;
}
/*
* Check the status..
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_ADC_ON) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerdown ADC failed\n"));
return 1;
}
}
}
if (type & CS_POWER_DAC) {
/*
* Power down the DAC on the AC97 card.
*/
CS_DBGOUT(CS_FUNCTION, 4,
printk(KERN_INFO "cs46xx: cs461x_powerdown()+ DAC\n"));
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (tmp & CS_AC97_POWER_CONTROL_DAC_ON) {
if (!muted) {
cs_mute(card, CS_TRUE);
muted = 1;
}
tmp |= CS_AC97_POWER_CONTROL_DAC;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp);
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_DAC_ON))
break;
}
/*
* Check the status..
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_DAC_ON) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerdown DAC failed\n"));
return 1;
}
}
}
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (muted)
cs_mute(card, CS_FALSE);
CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO
"cs46xx: cs461x_powerdown()- 0 tmp=0x%x\n",tmp));
return 0;
}
static int cs46xx_powerup(struct cs_card *card, unsigned int type)
{
int count;
unsigned int tmp = 0, muted = 0;
CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO
"cs46xx: cs46xx_powerup()+ type=0x%x\n",type));
/*
* check for VREF and powerup if need to.
*/
if (type & CS_POWER_MIXVON)
type |= CS_POWER_MIXVOFF;
if (type & (CS_POWER_DAC | CS_POWER_ADC))
type |= CS_POWER_MIXVON | CS_POWER_MIXVOFF;
/*
* Power up indicated areas.
*/
if (type & CS_POWER_MIXVOFF) {
CS_DBGOUT(CS_FUNCTION, 4,
printk(KERN_INFO "cs46xx: cs46xx_powerup()+ MIXVOFF\n"));
/*
* Power up the MIXER (VREF ON) on the AC97 card.
*/
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (!(tmp & CS_AC97_POWER_CONTROL_MIXVOFF_ON)) {
if (!muted) {
cs_mute(card, CS_TRUE);
muted = 1;
}
tmp &= ~CS_AC97_POWER_CONTROL_MIXVOFF;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVOFF_ON)
break;
}
/*
* Check the status..
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVOFF_ON)) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerup MIXVOFF failed\n"));
return 1;
}
}
}
if(type & CS_POWER_MIXVON) {
CS_DBGOUT(CS_FUNCTION, 4,
printk(KERN_INFO "cs46xx: cs46xx_powerup()+ MIXVON\n"));
/*
* Power up the MIXER (VREF ON) on the AC97 card.
*/
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (!(tmp & CS_AC97_POWER_CONTROL_MIXVON_ON)) {
if (!muted) {
cs_mute(card, CS_TRUE);
muted = 1;
}
tmp &= ~CS_AC97_POWER_CONTROL_MIXVON;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVON_ON)
break;
}
/*
* Check the status..
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_MIXVON_ON)) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerup MIXVON failed\n"));
return 1;
}
}
}
if (type & CS_POWER_ADC) {
/*
* Power up the ADC on the AC97 card.
*/
CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO "cs46xx: cs46xx_powerup()+ ADC\n"));
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (!(tmp & CS_AC97_POWER_CONTROL_ADC_ON)) {
if (!muted) {
cs_mute(card, CS_TRUE);
muted = 1;
}
tmp &= ~CS_AC97_POWER_CONTROL_ADC;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_ADC_ON)
break;
}
/*
* Check the status..
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_ADC_ON)) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerup ADC failed\n"));
return 1;
}
}
}
if (type & CS_POWER_DAC) {
/*
* Power up the DAC on the AC97 card.
*/
CS_DBGOUT(CS_FUNCTION, 4,
printk(KERN_INFO "cs46xx: cs46xx_powerup()+ DAC\n"));
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (!(tmp & CS_AC97_POWER_CONTROL_DAC_ON)) {
if (!muted) {
cs_mute(card, CS_TRUE);
muted = 1;
}
tmp &= ~CS_AC97_POWER_CONTROL_DAC;
cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
/*
* Now, we wait until we sample a ready state.
*/
for (count = 0; count < 32; count++) {
/*
* First, lets wait a short while to let things settle out a
* bit, and to prevent retrying the read too quickly.
*/
udelay(500);
/*
* Read the current state of the power control register.
*/
if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_DAC_ON)
break;
}
/*
* Check the status..
*/
if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
CS_AC97_POWER_CONTROL_DAC_ON)) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
"cs46xx: powerup DAC failed\n"));
return 1;
}
}
}
tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
if (muted)
cs_mute(card, CS_FALSE);
CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO
"cs46xx: cs46xx_powerup()- 0 tmp=0x%x\n",tmp));
return 0;
}
static void cs461x_proc_start(struct cs_card *card)
{
int cnt;
/*
* Set the frame timer to reflect the number of cycles per frame.
*/
cs461x_poke(card, BA1_FRMT, 0xadf);
/*
* Turn on the run, run at frame, and DMA enable bits in the local copy of
* the SP control register.
*/
cs461x_poke(card, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
/*
* Wait until the run at frame bit resets itself in the SP control
* register.
*/
for (cnt = 0; cnt < 25; cnt++) {
udelay(50);
if (!(cs461x_peek(card, BA1_SPCR) & SPCR_RUNFR))
break;
}
if (cs461x_peek(card, BA1_SPCR) & SPCR_RUNFR)
printk(KERN_WARNING "cs46xx: SPCR_RUNFR never reset\n");
}
static void cs461x_proc_stop(struct cs_card *card)
{
/*
* Turn off the run, run at frame, and DMA enable bits in the local copy of
* the SP control register.
*/
cs461x_poke(card, BA1_SPCR, 0);
}
static int cs_hardware_init(struct cs_card *card)
{
unsigned long end_time;
unsigned int tmp,count;
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_hardware_init()+\n") );
/*
* First, blast the clock control register to zero so that the PLL starts
* out in a known state, and blast the master serial port control register
* to zero so that the serial ports also start out in a known state.
*/
cs461x_pokeBA0(card, BA0_CLKCR1, 0);
cs461x_pokeBA0(card, BA0_SERMC1, 0);
/*
* If we are in AC97 mode, then we must set the part to a host controlled
* AC-link. Otherwise, we won't be able to bring up the link.
*/
cs461x_pokeBA0(card, BA0_SERACC, SERACC_HSP | SERACC_CODEC_TYPE_1_03); /* 1.03 card */
/* cs461x_pokeBA0(card, BA0_SERACC, SERACC_HSP | SERACC_CODEC_TYPE_2_0); */ /* 2.00 card */
/*
* Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97
* spec) and then drive it high. This is done for non AC97 modes since
* there might be logic external to the CS461x that uses the ARST# line
* for a reset.
*/
cs461x_pokeBA0(card, BA0_ACCTL, 1);
udelay(50);
cs461x_pokeBA0(card, BA0_ACCTL, 0);
udelay(50);
cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_RSTN);
/*
* The first thing we do here is to enable sync generation. As soon
* as we start receiving bit clock, we'll start producing the SYNC
* signal.
*/
cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_ESYN | ACCTL_RSTN);
/*
* Now wait for a short while to allow the AC97 part to start
* generating bit clock (so we don't try to start the PLL without an
* input clock).
*/
mdelay(5 * cs_laptop_wait); /* 1 should be enough ?? (and pigs might fly) */
/*
* Set the serial port timing configuration, so that
* the clock control circuit gets its clock from the correct place.
*/
cs461x_pokeBA0(card, BA0_SERMC1, SERMC1_PTC_AC97);
/*
* The part seems to not be ready for a while after a resume.
* so, if we are resuming, then wait for 700 mils. Note that 600 mils
* is not enough for some platforms! tested on an IBM Thinkpads and
* reference cards.
*/
if (!(card->pm.flags & CS46XX_PM_IDLE))
mdelay(initdelay);
/*
* Write the selected clock control setup to the hardware. Do not turn on
* SWCE yet (if requested), so that the devices clocked by the output of
* PLL are not clocked until the PLL is stable.
*/
cs461x_pokeBA0(card, BA0_PLLCC, PLLCC_LPF_1050_2780_KHZ | PLLCC_CDR_73_104_MHZ);
cs461x_pokeBA0(card, BA0_PLLM, 0x3a);
cs461x_pokeBA0(card, BA0_CLKCR2, CLKCR2_PDIVS_8);
/*
* Power up the PLL.
*/
cs461x_pokeBA0(card, BA0_CLKCR1, CLKCR1_PLLP);
/*
* Wait until the PLL has stabilized.
*/
mdelay(5 * cs_laptop_wait); /* Again 1 should be enough ?? */
/*
* Turn on clocking of the core so that we can setup the serial ports.
*/
tmp = cs461x_peekBA0(card, BA0_CLKCR1) | CLKCR1_SWCE;
cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
/*
* Fill the serial port FIFOs with silence.
*/
cs461x_clear_serial_FIFOs(card,CS_TYPE_DAC | CS_TYPE_ADC);
/*
* Set the serial port FIFO pointer to the first sample in the FIFO.
*/
/* cs461x_pokeBA0(card, BA0_SERBSP, 0); */
/*
* Write the serial port configuration to the part. The master
* enable bit is not set until all other values have been written.
*/
cs461x_pokeBA0(card, BA0_SERC1, SERC1_SO1F_AC97 | SERC1_SO1EN);
cs461x_pokeBA0(card, BA0_SERC2, SERC2_SI1F_AC97 | SERC1_SO1EN);
cs461x_pokeBA0(card, BA0_SERMC1, SERMC1_PTC_AC97 | SERMC1_MSPE);
mdelay(5 * cs_laptop_wait); /* Shouldnt be needed ?? */
/*
* If we are resuming under 2.2.x then we can not schedule a timeout.
* so, just spin the CPU.
*/
if (card->pm.flags & CS46XX_PM_IDLE) {
/*
* Wait for the card ready signal from the AC97 card.
*/
end_time = jiffies + 3 * (HZ >> 2);
do {
/*
* Read the AC97 status register to see if we've seen a CODEC READY
* signal from the AC97 card.
*/
if (cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_CRDY)
break;
current->state = TASK_UNINTERRUPTIBLE;
schedule_timeout(1);
} while (time_before(jiffies, end_time));
} else {
for (count = 0; count < 100; count++) {
// First, we want to wait for a short time.
udelay(25 * cs_laptop_wait);
if (cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_CRDY)
break;
}
}
/*
* Make sure CODEC is READY.
*/
if (!(cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_CRDY)) {
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_WARNING
"cs46xx: create - never read card ready from AC'97\n"));
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_WARNING
"cs46xx: probably not a bug, try using the CS4232 driver,\n"));
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_WARNING
"cs46xx: or turn off any automatic Power Management support in the BIOS.\n"));
return -EIO;
}
/*
* Assert the vaid frame signal so that we can start sending commands
* to the AC97 card.
*/
cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
if (card->pm.flags & CS46XX_PM_IDLE) {
/*
* Wait until we've sampled input slots 3 and 4 as valid, meaning that
* the card is pumping ADC data across the AC-link.
*/
end_time = jiffies + 3 * (HZ >> 2);
do {
/*
* Read the input slot valid register and see if input slots 3 and
* 4 are valid yet.
*/
if ((cs461x_peekBA0(card, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
break;
current->state = TASK_UNINTERRUPTIBLE;
schedule_timeout(1);
} while (time_before(jiffies, end_time));
} else {
for (count = 0; count < 100; count++) {
// First, we want to wait for a short time.
udelay(25 * cs_laptop_wait);
if ((cs461x_peekBA0(card, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
break;
}
}
/*
* Make sure input slots 3 and 4 are valid. If not, then return
* an error.
*/
if ((cs461x_peekBA0(card, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) != (ACISV_ISV3 | ACISV_ISV4)) {
printk(KERN_WARNING "cs46xx: create - never read ISV3 & ISV4 from AC'97\n");
return -EIO;
}
/*
* Now, assert valid frame and the slot 3 and 4 valid bits. This will
* commense the transfer of digital audio data to the AC97 card.
*/
cs461x_pokeBA0(card, BA0_ACOSV, ACOSV_SLV3 | ACOSV_SLV4);
/*
* Turn off the Processor by turning off the software clock enable flag in
* the clock control register.
*/
/* tmp = cs461x_peekBA0(card, BA0_CLKCR1) & ~CLKCR1_SWCE; */
/* cs461x_pokeBA0(card, BA0_CLKCR1, tmp); */
/*
* Reset the processor.
*/
cs461x_reset(card);
/*
* Download the image to the processor.
*/
cs461x_download_image(card);
/*
* Stop playback DMA.
*/
tmp = cs461x_peek(card, BA1_PCTL);
card->pctl = tmp & 0xffff0000;
cs461x_poke(card, BA1_PCTL, tmp & 0x0000ffff);
/*
* Stop capture DMA.
*/
tmp = cs461x_peek(card, BA1_CCTL);
card->cctl = tmp & 0x0000ffff;
cs461x_poke(card, BA1_CCTL, tmp & 0xffff0000);
/* initialize AC97 codec and register /dev/mixer */
if (card->pm.flags & CS46XX_PM_IDLE) {
if (cs_ac97_init(card) <= 0) {
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs_ac97_init() failure\n"));
return -EIO;
}
} else {
cs46xx_ac97_resume(card);
}
cs461x_proc_start(card);
/*
* Enable interrupts on the part.
*/
cs461x_pokeBA0(card, BA0_HICR, HICR_IEV | HICR_CHGM);
tmp = cs461x_peek(card, BA1_PFIE);
tmp &= ~0x0000f03f;
cs461x_poke(card, BA1_PFIE, tmp); /* playback interrupt enable */
tmp = cs461x_peek(card, BA1_CIE);
tmp &= ~0x0000003f;
tmp |= 0x00000001;
cs461x_poke(card, BA1_CIE, tmp); /* capture interrupt enable */
/*
* If IDLE then Power down the part. We will power components up
* when we need them.
*/
if (card->pm.flags & CS46XX_PM_IDLE) {
if (!cs_powerdown) {
if ((tmp = cs46xx_powerup(card, CS_POWER_DAC | CS_POWER_ADC |
CS_POWER_MIXVON))) {
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs461x_powerup() failure (0x%x)\n",tmp) );
return -EIO;
}
} else {
if ((tmp = cs461x_powerdown(card, CS_POWER_DAC | CS_POWER_ADC |
CS_POWER_MIXVON, CS_FALSE))) {
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs461x_powerdown() failure (0x%x)\n",tmp) );
return -EIO;
}
}
}
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
"cs46xx: cs_hardware_init()- 0\n"));
return 0;
}
/* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered
until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */
/*
* Card subid table
*/
struct cs_card_type
{
u16 vendor;
u16 id;
char *name;
void (*amp)(struct cs_card *, int);
void (*amp_init)(struct cs_card *);
void (*active)(struct cs_card *, int);
};
static struct cs_card_type cards[] = {
{
.vendor = 0x1489,
.id = 0x7001,
.name = "Genius Soundmaker 128 value",
.amp = amp_none,
},
{
.vendor = 0x5053,
.id = 0x3357,
.name = "Voyetra",
.amp = amp_voyetra,
},
{
.vendor = 0x1071,
.id = 0x6003,
.name = "Mitac MI6020/21",
.amp = amp_voyetra,
},
{
.vendor = 0x14AF,
.id = 0x0050,
.name = "Hercules Game Theatre XP",
.amp = amp_hercules,
},
{
.vendor = 0x1681,
.id = 0x0050,
.name = "Hercules Game Theatre XP",
.amp = amp_hercules,
},
{
.vendor = 0x1681,
.id = 0x0051,
.name = "Hercules Game Theatre XP",
.amp = amp_hercules,
},
{
.vendor = 0x1681,
.id = 0x0052,
.name = "Hercules Game Theatre XP",
.amp = amp_hercules,
},
{
.vendor = 0x1681,
.id = 0x0053,
.name = "Hercules Game Theatre XP",
.amp = amp_hercules,
},
{
.vendor = 0x1681,
.id = 0x0054,
.name = "Hercules Game Theatre XP",
.amp = amp_hercules,
},
{
.vendor = 0x1681,
.id = 0xa010,
.name = "Hercules Fortissimo II",
.amp = amp_none,
},
/* Not sure if the 570 needs the clkrun hack */
{
.vendor = PCI_VENDOR_ID_IBM,
.id = 0x0132,
.name = "Thinkpad 570",
.amp = amp_none,
.active = clkrun_hack,
},
{
.vendor = PCI_VENDOR_ID_IBM,
.id = 0x0153,
.name = "Thinkpad 600X/A20/T20",
.amp = amp_none,
.active = clkrun_hack,
},
{
.vendor = PCI_VENDOR_ID_IBM,
.id = 0x1010,
.name = "Thinkpad 600E (unsupported)",
},
{
.name = "Card without SSID set",
},
{ 0, },
};
MODULE_AUTHOR("Alan Cox <alan@redhat.com>, Jaroslav Kysela, <pcaudio@crystal.cirrus.com>");
MODULE_DESCRIPTION("Crystal SoundFusion Audio Support");
MODULE_LICENSE("GPL");
static const char cs46xx_banner[] = KERN_INFO "Crystal 4280/46xx + AC97 Audio, version " CS46XX_MAJOR_VERSION "." CS46XX_MINOR_VERSION "." CS46XX_ARCH ", " __TIME__ " " __DATE__ "\n";
static const char fndmsg[] = KERN_INFO "cs46xx: Found %d audio device(s).\n";
static int __devinit cs46xx_probe(struct pci_dev *pci_dev,
const struct pci_device_id *pciid)
{
int i, j;
u16 ss_card, ss_vendor;
struct cs_card *card;
dma_addr_t dma_mask;
struct cs_card_type *cp = &cards[0];
CS_DBGOUT(CS_FUNCTION | CS_INIT, 2,
printk(KERN_INFO "cs46xx: probe()+\n"));
dma_mask = 0xffffffff; /* this enables playback and recording */
if (pci_enable_device(pci_dev)) {
CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR
"cs46xx: pci_enable_device() failed\n"));
return -1;
}
if (!RSRCISMEMORYREGION(pci_dev, 0) ||
!RSRCISMEMORYREGION(pci_dev, 1)) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
"cs46xx: probe()- Memory region not assigned\n"));
return -1;
}
if (pci_dev->irq == 0) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
"cs46xx: probe() IRQ not assigned\n"));
return -1;
}
if (!pci_dma_supported(pci_dev, 0xffffffff)) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
"cs46xx: probe() architecture does not support 32bit PCI busmaster DMA\n"));
return -1;
}
pci_read_config_word(pci_dev, PCI_SUBSYSTEM_VENDOR_ID, &ss_vendor);
pci_read_config_word(pci_dev, PCI_SUBSYSTEM_ID, &ss_card);
if ((card = kmalloc(sizeof(struct cs_card), GFP_KERNEL)) == NULL) {
printk(KERN_ERR "cs46xx: out of memory\n");
return -ENOMEM;
}
memset(card, 0, sizeof(*card));
card->ba0_addr = RSRCADDRESS(pci_dev, 0);
card->ba1_addr = RSRCADDRESS(pci_dev, 1);
card->pci_dev = pci_dev;
card->irq = pci_dev->irq;
card->magic = CS_CARD_MAGIC;
spin_lock_init(&card->lock);
spin_lock_init(&card->ac97_lock);
pci_set_master(pci_dev);
printk(cs46xx_banner);
printk(KERN_INFO "cs46xx: Card found at 0x%08lx and 0x%08lx, IRQ %d\n",
card->ba0_addr, card->ba1_addr, card->irq);
card->alloc_pcm_channel = cs_alloc_pcm_channel;
card->alloc_rec_pcm_channel = cs_alloc_rec_pcm_channel;
card->free_pcm_channel = cs_free_pcm_channel;
card->amplifier_ctrl = amp_none;
card->active_ctrl = amp_none;
while (cp->name)
{
if (cp->vendor == ss_vendor && cp->id == ss_card) {
card->amplifier_ctrl = cp->amp;
if (cp->active)
card->active_ctrl = cp->active;
if (cp->amp_init)
card->amp_init = cp->amp_init;
break;
}
cp++;
}
if (cp->name == NULL) {
printk(KERN_INFO "cs46xx: Unknown card (%04X:%04X) at 0x%08lx/0x%08lx, IRQ %d\n",
ss_vendor, ss_card, card->ba0_addr, card->ba1_addr, card->irq);
} else {
printk(KERN_INFO "cs46xx: %s (%04X:%04X) at 0x%08lx/0x%08lx, IRQ %d\n",
cp->name, ss_vendor, ss_card, card->ba0_addr, card->ba1_addr, card->irq);
}
if (card->amplifier_ctrl == NULL) {
card->amplifier_ctrl = amp_none;
card->active_ctrl = clkrun_hack;
}
if (external_amp == 1) {
printk(KERN_INFO "cs46xx: Crystal EAPD support forced on.\n");
card->amplifier_ctrl = amp_voyetra;
}
if (thinkpad == 1) {
printk(KERN_INFO "cs46xx: Activating CLKRUN hack for Thinkpad.\n");
card->active_ctrl = clkrun_hack;
}
/*
* The thinkpads don't work well without runtime updating on their kernel
* delay values (or any laptop with variable CPU speeds really).
* so, just to be safe set the init delay to 2100. Eliminates
* failures on T21 Thinkpads. remove this code when the udelay
* and mdelay kernel code is replaced by a pm timer, or the delays
* work well for battery and/or AC power both.
*/
if (card->active_ctrl == clkrun_hack) {
initdelay = 2100;
cs_laptop_wait = 5;
}
if ((card->active_ctrl == clkrun_hack) && !(powerdown == 1)) {
/*
* for some currently unknown reason, powering down the DAC and ADC component
* blocks on thinkpads causes some funky behavior... distoorrrtion and ac97
* codec access problems. probably the serial clock becomes unsynced.
* added code to sync the chips back up, but only helped about 70% the time.
*/
cs_powerdown = 0;
}
if (powerdown == 0)
cs_powerdown = 0;
card->active_ctrl(card, 1);
/* claim our iospace and irq */
card->ba0 = ioremap_nocache(card->ba0_addr, CS461X_BA0_SIZE);
card->ba1.name.data0 = ioremap_nocache(card->ba1_addr + BA1_SP_DMEM0, CS461X_BA1_DATA0_SIZE);
card->ba1.name.data1 = ioremap_nocache(card->ba1_addr + BA1_SP_DMEM1, CS461X_BA1_DATA1_SIZE);
card->ba1.name.pmem = ioremap_nocache(card->ba1_addr + BA1_SP_PMEM, CS461X_BA1_PRG_SIZE);
card->ba1.name.reg = ioremap_nocache(card->ba1_addr + BA1_SP_REG, CS461X_BA1_REG_SIZE);
CS_DBGOUT(CS_INIT, 4, printk(KERN_INFO
"cs46xx: card=%p card->ba0=%p\n",card,card->ba0) );
CS_DBGOUT(CS_INIT, 4, printk(KERN_INFO
"cs46xx: card->ba1=%p %p %p %p\n",
card->ba1.name.data0,
card->ba1.name.data1,
card->ba1.name.pmem,
card->ba1.name.reg) );
if (card->ba0 == 0 || card->ba1.name.data0 == 0 ||
card->ba1.name.data1 == 0 || card->ba1.name.pmem == 0 ||
card->ba1.name.reg == 0)
goto fail2;
if (request_irq(card->irq, &cs_interrupt, IRQF_SHARED, "cs46xx", card)) {
printk(KERN_ERR "cs46xx: unable to allocate irq %d\n", card->irq);
goto fail2;
}
/* register /dev/dsp */
if ((card->dev_audio = register_sound_dsp(&cs461x_fops, -1)) < 0) {
printk(KERN_ERR "cs46xx: unable to register dsp\n");
goto fail;
}
/* register /dev/midi */
if ((card->dev_midi = register_sound_midi(&cs_midi_fops, -1)) < 0)
printk(KERN_ERR "cs46xx: unable to register midi\n");
card->pm.flags |= CS46XX_PM_IDLE;
for (i = 0; i < 5; i++) {
if (cs_hardware_init(card) != 0) {
CS_DBGOUT(CS_ERROR, 4, printk(
"cs46xx: ERROR in cs_hardware_init()... retrying\n"));
for (j = 0; j < NR_AC97; j++)
if (card->ac97_codec[j] != NULL) {
unregister_sound_mixer(card->ac97_codec[j]->dev_mixer);
ac97_release_codec(card->ac97_codec[j]);
}
mdelay(10 * cs_laptop_wait);
continue;
}
break;
}
if(i >= 4) {
CS_DBGOUT(CS_PM | CS_ERROR, 1, printk(
"cs46xx: cs46xx_probe()- cs_hardware_init() failed, retried %d times.\n",i));
unregister_sound_dsp(card->dev_audio);
if (card->dev_midi)
unregister_sound_midi(card->dev_midi);
goto fail;
}
init_waitqueue_head(&card->midi.open_wait);
mutex_init(&card->midi.open_mutex);
init_waitqueue_head(&card->midi.iwait);
init_waitqueue_head(&card->midi.owait);
cs461x_pokeBA0(card, BA0_MIDCR, MIDCR_MRST);
cs461x_pokeBA0(card, BA0_MIDCR, 0);
/*
* Check if we have to init the amplifier, but probably already done
* since the CD logic in the ac97 init code will turn on the ext amp.
*/
if (cp->amp_init)
cp->amp_init(card);
card->active_ctrl(card, -1);
PCI_SET_DRIVER_DATA(pci_dev, card);
PCI_SET_DMA_MASK(pci_dev, dma_mask);
list_add(&card->list, &cs46xx_devs);
CS_DBGOUT(CS_PM, 9, printk(KERN_INFO "cs46xx: pm.flags=0x%x card=%p\n",
(unsigned)card->pm.flags,card));
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
"cs46xx: probe()- device allocated successfully\n"));
return 0;
fail:
free_irq(card->irq, card);
fail2:
if (card->ba0)
iounmap(card->ba0);
if (card->ba1.name.data0)
iounmap(card->ba1.name.data0);
if (card->ba1.name.data1)
iounmap(card->ba1.name.data1);
if (card->ba1.name.pmem)
iounmap(card->ba1.name.pmem);
if (card->ba1.name.reg)
iounmap(card->ba1.name.reg);
kfree(card);
CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_INFO
"cs46xx: probe()- no device allocated\n"));
return -ENODEV;
} // probe_cs46xx
// ---------------------------------------------------------------------
static void __devexit cs46xx_remove(struct pci_dev *pci_dev)
{
struct cs_card *card = PCI_GET_DRIVER_DATA(pci_dev);
int i;
unsigned int tmp;
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
"cs46xx: cs46xx_remove()+\n"));
card->active_ctrl(card,1);
tmp = cs461x_peek(card, BA1_PFIE);
tmp &= ~0x0000f03f;
tmp |= 0x00000010;
cs461x_poke(card, BA1_PFIE, tmp); /* playback interrupt disable */
tmp = cs461x_peek(card, BA1_CIE);
tmp &= ~0x0000003f;
tmp |= 0x00000011;
cs461x_poke(card, BA1_CIE, tmp); /* capture interrupt disable */
/*
* Stop playback DMA.
*/
tmp = cs461x_peek(card, BA1_PCTL);
cs461x_poke(card, BA1_PCTL, tmp & 0x0000ffff);
/*
* Stop capture DMA.
*/
tmp = cs461x_peek(card, BA1_CCTL);
cs461x_poke(card, BA1_CCTL, tmp & 0xffff0000);
/*
* Reset the processor.
*/
cs461x_reset(card);
cs461x_proc_stop(card);
/*
* Power down the DAC and ADC. We will power them up (if) when we need
* them.
*/
if ((tmp = cs461x_powerdown(card, CS_POWER_DAC | CS_POWER_ADC |
CS_POWER_MIXVON, CS_TRUE))) {
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
"cs46xx: cs461x_powerdown() failure (0x%x)\n",tmp) );
}
/*
* Power down the PLL.
*/
cs461x_pokeBA0(card, BA0_CLKCR1, 0);
/*
* Turn off the Processor by turning off the software clock enable flag in
* the clock control register.
*/
tmp = cs461x_peekBA0(card, BA0_CLKCR1) & ~CLKCR1_SWCE;
cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
card->active_ctrl(card,-1);
/* free hardware resources */
free_irq(card->irq, card);
iounmap(card->ba0);
iounmap(card->ba1.name.data0);
iounmap(card->ba1.name.data1);
iounmap(card->ba1.name.pmem);
iounmap(card->ba1.name.reg);
/* unregister audio devices */
for (i = 0; i < NR_AC97; i++)
if (card->ac97_codec[i] != NULL) {
unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
ac97_release_codec(card->ac97_codec[i]);
}
unregister_sound_dsp(card->dev_audio);
if (card->dev_midi)
unregister_sound_midi(card->dev_midi);
list_del(&card->list);
kfree(card);
PCI_SET_DRIVER_DATA(pci_dev,NULL);
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
"cs46xx: cs46xx_remove()-: remove successful\n"));
}
enum {
CS46XX_4610 = 0,
CS46XX_4612, /* same as 4630 */
CS46XX_4615, /* same as 4624 */
};
static struct pci_device_id cs46xx_pci_tbl[] = {
{
.vendor = PCI_VENDOR_ID_CIRRUS,
.device = PCI_DEVICE_ID_CIRRUS_4610,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = CS46XX_4610,
},
{
.vendor = PCI_VENDOR_ID_CIRRUS,
.device = PCI_DEVICE_ID_CIRRUS_4612,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = CS46XX_4612,
},
{
.vendor = PCI_VENDOR_ID_CIRRUS,
.device = PCI_DEVICE_ID_CIRRUS_4615,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = CS46XX_4615,
},
{ 0, },
};
MODULE_DEVICE_TABLE(pci, cs46xx_pci_tbl);
static struct pci_driver cs46xx_pci_driver = {
.name = "cs46xx",
.id_table = cs46xx_pci_tbl,
.probe = cs46xx_probe,
.remove = __devexit_p(cs46xx_remove),
#ifdef CONFIG_PM
.suspend = cs46xx_suspend_tbl,
.resume = cs46xx_resume_tbl,
#endif
};
static int __init cs46xx_init_module(void)
{
int rtn = 0;
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
"cs46xx: cs46xx_init_module()+ \n"));
rtn = pci_register_driver(&cs46xx_pci_driver);
if (rtn == -ENODEV) {
CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(
"cs46xx: Unable to detect valid cs46xx device\n"));
}
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2,
printk(KERN_INFO "cs46xx: cs46xx_init_module()- (%d)\n",rtn));
return rtn;
}
static void __exit cs46xx_cleanup_module(void)
{
pci_unregister_driver(&cs46xx_pci_driver);
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2,
printk(KERN_INFO "cs46xx: cleanup_cs46xx() finished\n"));
}
module_init(cs46xx_init_module);
module_exit(cs46xx_cleanup_module);
#ifdef CONFIG_PM
static int cs46xx_suspend_tbl(struct pci_dev *pcidev, pm_message_t state)
{
struct cs_card *s = PCI_GET_DRIVER_DATA(pcidev);
CS_DBGOUT(CS_PM | CS_FUNCTION, 2,
printk(KERN_INFO "cs46xx: cs46xx_suspend_tbl request\n"));
cs46xx_suspend(s, state);
return 0;
}
static int cs46xx_resume_tbl(struct pci_dev *pcidev)
{
struct cs_card *s = PCI_GET_DRIVER_DATA(pcidev);
CS_DBGOUT(CS_PM | CS_FUNCTION, 2,
printk(KERN_INFO "cs46xx: cs46xx_resume_tbl request\n"));
cs46xx_resume(s);
return 0;
}
#endif
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