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-rw-r--r--sound/oss/cs4281/cs4281m.c4487
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diff --git a/sound/oss/cs4281/cs4281m.c b/sound/oss/cs4281/cs4281m.c
deleted file mode 100644
index 0400a416dc9..00000000000
--- a/sound/oss/cs4281/cs4281m.c
+++ /dev/null
@@ -1,4487 +0,0 @@
-/*******************************************************************************
-*
-* "cs4281.c" -- Cirrus Logic-Crystal CS4281 linux audio driver.
-*
-* Copyright (C) 2000,2001 Cirrus Logic Corp.
-* -- adapted from drivers by Thomas Sailer,
-* -- but don't bug him; Problems should go to:
-* -- tom woller (twoller@crystal.cirrus.com) or
-* (audio@crystal.cirrus.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.
-*
-* Module command line parameters:
-* none
-*
-* Supported devices:
-* /dev/dsp standard /dev/dsp device, (mostly) OSS compatible
-* /dev/mixer standard /dev/mixer device, (mostly) OSS compatible
-* /dev/midi simple MIDI UART interface, no ioctl
-*
-* Modification History
-* 08/20/00 trw - silence and no stopping DAC until release
-* 08/23/00 trw - added CS_DBG statements, fix interrupt hang issue on DAC stop.
-* 09/18/00 trw - added 16bit only record with conversion
-* 09/24/00 trw - added Enhanced Full duplex (separate simultaneous
-* capture/playback rates)
-* 10/03/00 trw - fixed mmap (fixed GRECORD and the XMMS mmap test plugin
-* libOSSm.so)
-* 10/11/00 trw - modified for 2.4.0-test9 kernel enhancements (NR_MAP removal)
-* 11/03/00 trw - fixed interrupt loss/stutter, added debug.
-* 11/10/00 bkz - added __devinit to cs4281_hw_init()
-* 11/10/00 trw - fixed SMP and capture spinlock hang.
-* 12/04/00 trw - cleaned up CSDEBUG flags and added "defaultorder" moduleparm.
-* 12/05/00 trw - fixed polling (myth2), and added underrun swptr fix.
-* 12/08/00 trw - added PM support.
-* 12/14/00 trw - added wrapper code, builds under 2.4.0, 2.2.17-20, 2.2.17-8
-* (RH/Dell base), 2.2.18, 2.2.12. cleaned up code mods by ident.
-* 12/19/00 trw - added PM support for 2.2 base (apm_callback). other PM cleanup.
-* 12/21/00 trw - added fractional "defaultorder" inputs. if >100 then use
-* defaultorder-100 as power of 2 for the buffer size. example:
-* 106 = 2^(106-100) = 2^6 = 64 bytes for the buffer size.
-*
-*******************************************************************************/
-
-/* uncomment the following line to disable building PM support into the driver */
-//#define NOT_CS4281_PM 1
-
-#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/interrupt.h>
-#include <linux/poll.h>
-#include <linux/fs.h>
-#include <linux/wait.h>
-
-#include <asm/current.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <asm/page.h>
-#include <asm/uaccess.h>
-
-//#include "cs_dm.h"
-#include "cs4281_hwdefs.h"
-#include "cs4281pm.h"
-
-struct cs4281_state;
-
-static void stop_dac(struct cs4281_state *s);
-static void stop_adc(struct cs4281_state *s);
-static void start_dac(struct cs4281_state *s);
-static void start_adc(struct cs4281_state *s);
-#undef OSS_DOCUMENTED_MIXER_SEMANTICS
-
-// ---------------------------------------------------------------------
-
-#ifndef PCI_VENDOR_ID_CIRRUS
-#define PCI_VENDOR_ID_CIRRUS 0x1013
-#endif
-#ifndef PCI_DEVICE_ID_CRYSTAL_CS4281
-#define PCI_DEVICE_ID_CRYSTAL_CS4281 0x6005
-#endif
-
-#define CS4281_MAGIC ((PCI_DEVICE_ID_CRYSTAL_CS4281<<16) | PCI_VENDOR_ID_CIRRUS)
-#define CS4281_CFLR_DEFAULT 0x00000001 /* CFLR must be in AC97 link mode */
-
-// buffer order determines the size of the dma buffer for the driver.
-// under Linux, a smaller buffer allows more responsiveness from many of the
-// applications (e.g. games). A larger buffer allows some of the apps (esound)
-// to not underrun the dma buffer as easily. As default, use 32k (order=3)
-// rather than 64k as some of the games work more responsively.
-// log base 2( buff sz = 32k).
-static unsigned long defaultorder = 3;
-module_param(defaultorder, ulong, 0);
-
-//
-// Turn on/off debugging compilation by commenting out "#define CSDEBUG"
-//
-#define CSDEBUG 1
-#if CSDEBUG
-#define CSDEBUG_INTERFACE 1
-#else
-#undef CSDEBUG_INTERFACE
-#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 // power management
-#define CS_TMP 0x10000000 // tmp debug mask bit
-
-#define CS_IOCTL_CMD_SUSPEND 0x1 // suspend
-#define CS_IOCTL_CMD_RESUME 0x2 // resume
-//
-// 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
-
-#if CSDEBUG
-static unsigned long cs_debuglevel = 1; // levels range from 1-9
-static unsigned long cs_debugmask = CS_INIT | CS_ERROR; // use CS_DBGOUT with various mask values
-module_param(cs_debuglevel, ulong, 0);
-module_param(cs_debugmask, ulong, 0);
-#endif
-#define CS_TRUE 1
-#define CS_FALSE 0
-
-// MIDI buffer sizes
-#define MIDIINBUF 500
-#define MIDIOUTBUF 500
-
-#define FMODE_MIDI_SHIFT 3
-#define FMODE_MIDI_READ (FMODE_READ << FMODE_MIDI_SHIFT)
-#define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT)
-
-#define CS4281_MAJOR_VERSION 1
-#define CS4281_MINOR_VERSION 13
-#ifdef __ia64__
-#define CS4281_ARCH 64 //architecture key
-#else
-#define CS4281_ARCH 32 //architecture key
-#endif
-
-#define CS_TYPE_ADC 0
-#define CS_TYPE_DAC 1
-
-
-static const char invalid_magic[] =
- KERN_CRIT "cs4281: invalid magic value\n";
-
-#define VALIDATE_STATE(s) \
-({ \
- if (!(s) || (s)->magic != CS4281_MAGIC) { \
- printk(invalid_magic); \
- return -ENXIO; \
- } \
-})
-
-//LIST_HEAD(cs4281_devs);
-static struct list_head cs4281_devs = { &cs4281_devs, &cs4281_devs };
-
-struct cs4281_state;
-
-#include "cs4281_wrapper-24.c"
-
-struct cs4281_state {
- // magic
- unsigned int magic;
-
- // we keep the cards in a linked list
- struct cs4281_state *next;
-
- // pcidev is needed to turn off the DDMA controller at driver shutdown
- struct pci_dev *pcidev;
- struct list_head list;
-
- // soundcore stuff
- int dev_audio;
- int dev_mixer;
- int dev_midi;
-
- // hardware resources
- unsigned int pBA0phys, pBA1phys;
- char __iomem *pBA0;
- char __iomem *pBA1;
- unsigned int irq;
-
- // mixer registers
- struct {
- unsigned short vol[10];
- unsigned int recsrc;
- unsigned int modcnt;
- unsigned short micpreamp;
- } mix;
-
- // wave stuff
- struct properties {
- unsigned fmt;
- unsigned fmt_original; // original requested format
- unsigned channels;
- unsigned rate;
- unsigned char clkdiv;
- } prop_dac, prop_adc;
- unsigned conversion:1; // conversion from 16 to 8 bit in progress
- void *tmpbuff; // tmp buffer for sample conversions
- unsigned ena;
- spinlock_t lock;
- struct mutex open_sem;
- struct mutex open_sem_adc;
- struct mutex open_sem_dac;
- mode_t open_mode;
- wait_queue_head_t open_wait;
- wait_queue_head_t open_wait_adc;
- wait_queue_head_t open_wait_dac;
-
- dma_addr_t dmaaddr_tmpbuff;
- unsigned buforder_tmpbuff; // Log base 2 of 'rawbuf' size in bytes..
- struct dmabuf {
- void *rawbuf; // Physical address of
- dma_addr_t dmaaddr;
- unsigned buforder; // Log base 2 of 'rawbuf' size in bytes..
- unsigned numfrag; // # of 'fragments' in the buffer.
- unsigned fragshift; // Log base 2 of fragment size.
- unsigned hwptr, swptr;
- unsigned total_bytes; // # bytes process since open.
- unsigned blocks; // last returned blocks value GETOPTR
- unsigned wakeup; // interrupt occurred on block
- int count;
- unsigned underrun; // underrun flag
- unsigned error; // over/underrun
- wait_queue_head_t wait;
- // redundant, but makes calculations easier
- unsigned fragsize; // 2**fragshift..
- unsigned dmasize; // 2**buforder.
- unsigned fragsamples;
- // OSS stuff
- unsigned mapped:1; // Buffer mapped in cs4281_mmap()?
- unsigned ready:1; // prog_dmabuf_dac()/adc() successful?
- unsigned endcleared:1;
- unsigned type:1; // adc or dac buffer (CS_TYPE_XXX)
- unsigned ossfragshift;
- int ossmaxfrags;
- unsigned subdivision;
- } dma_dac, dma_adc;
-
- // midi stuff
- struct {
- unsigned ird, iwr, icnt;
- unsigned ord, owr, ocnt;
- wait_queue_head_t iwait;
- wait_queue_head_t owait;
- struct timer_list timer;
- unsigned char ibuf[MIDIINBUF];
- unsigned char obuf[MIDIOUTBUF];
- } midi;
-
- struct cs4281_pm pm;
- struct cs4281_pipeline pl[CS4281_NUMBER_OF_PIPELINES];
-};
-
-#include "cs4281pm-24.c"
-
-#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 cs_printioctl(unsigned int x)
-{
- unsigned int i;
- unsigned char vidx;
- // 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:\n"));
- break;
- case SOUND_MIXER_CS_GETDBGLEVEL:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_MIXER_CS_GETDBGLEVEL:\n"));
- break;
- case SOUND_MIXER_CS_SETDBGMASK:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_MIXER_CS_SETDBGMASK:\n"));
- break;
- case SOUND_MIXER_CS_SETDBGLEVEL:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_MIXER_CS_SETDBGLEVEL:\n"));
- break;
- case OSS_GETVERSION:
- CS_DBGOUT(CS_IOCTL, 4, printk("OSS_GETVERSION:\n"));
- break;
- case SNDCTL_DSP_SYNC:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SYNC:\n"));
- break;
- case SNDCTL_DSP_SETDUPLEX:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETDUPLEX:\n"));
- break;
- case SNDCTL_DSP_GETCAPS:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETCAPS:\n"));
- break;
- case SNDCTL_DSP_RESET:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_RESET:\n"));
- break;
- case SNDCTL_DSP_SPEED:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SPEED:\n"));
- break;
- case SNDCTL_DSP_STEREO:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_STEREO:\n"));
- break;
- case SNDCTL_DSP_CHANNELS:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_CHANNELS:\n"));
- break;
- case SNDCTL_DSP_GETFMTS:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETFMTS:\n"));
- break;
- case SNDCTL_DSP_SETFMT:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETFMT:\n"));
- break;
- case SNDCTL_DSP_POST:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_POST:\n"));
- break;
- case SNDCTL_DSP_GETTRIGGER:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETTRIGGER:\n"));
- break;
- case SNDCTL_DSP_SETTRIGGER:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETTRIGGER:\n"));
- break;
- case SNDCTL_DSP_GETOSPACE:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOSPACE:\n"));
- break;
- case SNDCTL_DSP_GETISPACE:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETISPACE:\n"));
- break;
- case SNDCTL_DSP_NONBLOCK:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_NONBLOCK:\n"));
- break;
- case SNDCTL_DSP_GETODELAY:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETODELAY:\n"));
- break;
- case SNDCTL_DSP_GETIPTR:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETIPTR:\n"));
- break;
- case SNDCTL_DSP_GETOPTR:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOPTR:\n"));
- break;
- case SNDCTL_DSP_GETBLKSIZE:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETBLKSIZE:\n"));
- break;
- case SNDCTL_DSP_SETFRAGMENT:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SNDCTL_DSP_SETFRAGMENT:\n"));
- break;
- case SNDCTL_DSP_SUBDIVIDE:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SUBDIVIDE:\n"));
- break;
- case SOUND_PCM_READ_RATE:
- CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_RATE:\n"));
- break;
- case SOUND_PCM_READ_CHANNELS:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_PCM_READ_CHANNELS:\n"));
- break;
- case SOUND_PCM_READ_BITS:
- CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_BITS:\n"));
- break;
- case SOUND_PCM_WRITE_FILTER:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_PCM_WRITE_FILTER:\n"));
- break;
- case SNDCTL_DSP_SETSYNCRO:
- CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETSYNCRO:\n"));
- break;
- case SOUND_PCM_READ_FILTER:
- CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_FILTER:\n"));
- break;
- case SOUND_MIXER_PRIVATE1:
- CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE1:\n"));
- break;
- case SOUND_MIXER_PRIVATE2:
- CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE2:\n"));
- break;
- case SOUND_MIXER_PRIVATE3:
- CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE3:\n"));
- break;
- case SOUND_MIXER_PRIVATE4:
- CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE4:\n"));
- break;
- case SOUND_MIXER_PRIVATE5:
- CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE5:\n"));
- break;
- case SOUND_MIXER_INFO:
- CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_INFO:\n"));
- break;
- case SOUND_OLD_MIXER_INFO:
- CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_OLD_MIXER_INFO:\n"));
- break;
-
- default:
- switch (_IOC_NR(x)) {
- case SOUND_MIXER_VOLUME:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_MIXER_VOLUME:\n"));
- break;
- case SOUND_MIXER_SPEAKER:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_MIXER_SPEAKER:\n"));
- break;
- case SOUND_MIXER_RECLEV:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_MIXER_RECLEV:\n"));
- break;
- case SOUND_MIXER_MIC:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_MIXER_MIC:\n"));
- break;
- case SOUND_MIXER_SYNTH:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_MIXER_SYNTH:\n"));
- break;
- case SOUND_MIXER_RECSRC:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_MIXER_RECSRC:\n"));
- break;
- case SOUND_MIXER_DEVMASK:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_MIXER_DEVMASK:\n"));
- break;
- case SOUND_MIXER_RECMASK:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_MIXER_RECMASK:\n"));
- break;
- case SOUND_MIXER_STEREODEVS:
- CS_DBGOUT(CS_IOCTL, 4,
- printk("SOUND_MIXER_STEREODEVS:\n"));
- break;
- case SOUND_MIXER_CAPS:
- CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CAPS:\n"));
- 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\n",
- x, i));
- } else {
- CS_DBGOUT(CS_IOCTL, 4, printk
- ("SOUND_MIXER_IOCTL AC9x: 0x%.8x NR=%d\n",
- x, i));
- }
- break;
- }
- }
-}
-#endif
-static int prog_dmabuf_adc(struct cs4281_state *s);
-static void prog_codec(struct cs4281_state *s, unsigned type);
-
-// ---------------------------------------------------------------------
-//
-// Hardware Interfaces For the CS4281
-//
-
-
-//******************************************************************************
-// "delayus()-- Delay for the specified # of microseconds.
-//******************************************************************************
-static void delayus(struct cs4281_state *s, u32 delay)
-{
- u32 j;
- if ((delay > 9999) && (s->pm.flags & CS4281_PM_IDLE)) {
- j = (delay * HZ) / 1000000; /* calculate delay in jiffies */
- if (j < 1)
- j = 1; /* minimum one jiffy. */
- current->state = TASK_UNINTERRUPTIBLE;
- schedule_timeout(j);
- } else
- udelay(delay);
- return;
-}
-
-
-//******************************************************************************
-// "cs4281_read_ac97" -- Reads a word from the specified location in the
-// CS4281's address space(based on the BA0 register).
-//
-// 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
-// 2. Write ACCDA = Command Data Register = 470h for data to write to AC97 register,
-// 0h for reads.
-// 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
-//****************************************************************************
-static int cs4281_read_ac97(struct cs4281_state *card, u32 offset,
- u32 * value)
-{
- u32 count, status;
-
- // Make sure that there is not data sitting
- // around from a previous uncompleted access.
- // ACSDA = Status Data Register = 47Ch
- status = readl(card->pBA0 + BA0_ACSDA);
-
- // Setup the AC97 control registers on the CS4281 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
- // bit DCV - will clear when process completed
- // bit CRW - Read command
- // bit VFRM - valid frame enabled
- // bit ESYN - ASYNC generation enabled
-
- // Get the actual AC97 register from the offset
- writel(offset - BA0_AC97_RESET, card->pBA0 + BA0_ACCAD);
- writel(0, card->pBA0 + BA0_ACCDA);
- writel(ACCTL_DCV | ACCTL_CRW | ACCTL_VFRM | ACCTL_ESYN,
- card->pBA0 + BA0_ACCTL);
-
- // Wait for the read to occur.
- for (count = 0; count < 10; count++) {
- // First, we want to wait for a short time.
- udelay(25);
-
- // Now, check to see if the read has completed.
- // ACCTL = 460h, DCV should be reset by now and 460h = 17h
- if (!(readl(card->pBA0 + BA0_ACCTL) & ACCTL_DCV))
- break;
- }
-
- // Make sure the read completed.
- if (readl(card->pBA0 + BA0_ACCTL) & ACCTL_DCV)
- return 1;
-
- // Wait for the valid status bit to go active.
- for (count = 0; count < 10; count++) {
- // Read the AC97 status register.
- // ACSTS = Status Register = 464h
- status = readl(card->pBA0 + BA0_ACSTS);
-
- // See if we have valid status.
- // VSTS - Valid Status
- if (status & ACSTS_VSTS)
- break;
- // Wait for a short while.
- udelay(25);
- }
-
- // Make sure we got valid status.
- if (!(status & ACSTS_VSTS))
- return 1;
-
- // Read the data returned from the AC97 register.
- // ACSDA = Status Data Register = 474h
- *value = readl(card->pBA0 + BA0_ACSDA);
-
- // Success.
- return (0);
-}
-
-
-//****************************************************************************
-//
-// "cs4281_write_ac97()"-- writes a word to the specified location in the
-// CS461x's address space (based on the part's base address zero register).
-//
-// 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
-// 2. Write ACCDA = Command Data Register = 470h for data to write to AC97 reg.
-// 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
-//
-//****************************************************************************
-static int cs4281_write_ac97(struct cs4281_state *card, u32 offset,
- u32 value)
-{
- u32 count, status=0;
-
- CS_DBGOUT(CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: cs_4281_write_ac97()+ \n"));
-
- // Setup the AC97 control registers on the CS4281 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
-
- // Get the actual AC97 register from the offset
-
- writel(offset - BA0_AC97_RESET, card->pBA0 + BA0_ACCAD);
- writel(value, card->pBA0 + BA0_ACCDA);
- writel(ACCTL_DCV | ACCTL_VFRM | ACCTL_ESYN,
- card->pBA0 + BA0_ACCTL);
-
- // Wait for the write to occur.
- for (count = 0; count < 100; count++) {
- // First, we want to wait for a short time.
- udelay(25);
- // Now, check to see if the write has completed.
- // ACCTL = 460h, DCV should be reset by now and 460h = 07h
- status = readl(card->pBA0 + BA0_ACCTL);
- if (!(status & ACCTL_DCV))
- break;
- }
-
- // Make sure the write completed.
- if (status & ACCTL_DCV) {
- CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
- "cs4281: cs_4281_write_ac97()- unable to write. ACCTL_DCV active\n"));
- return 1;
- }
- CS_DBGOUT(CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: cs_4281_write_ac97()- 0\n"));
- // Success.
- return 0;
-}
-
-
-//******************************************************************************
-// "Init4281()" -- Bring up the part.
-//******************************************************************************
-static __devinit int cs4281_hw_init(struct cs4281_state *card)
-{
- u32 ac97_slotid;
- u32 temp1, temp2;
-
- CS_DBGOUT(CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: cs4281_hw_init()+ \n"));
-#ifndef NOT_CS4281_PM
- if(!card)
- return 1;
-#endif
- temp2 = readl(card->pBA0 + BA0_CFLR);
- CS_DBGOUT(CS_INIT | CS_ERROR | CS_PARMS, 4, printk(KERN_INFO
- "cs4281: cs4281_hw_init() CFLR 0x%x\n", temp2));
- if(temp2 != CS4281_CFLR_DEFAULT)
- {
- CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_INFO
- "cs4281: cs4281_hw_init() CFLR invalid - resetting from 0x%x to 0x%x\n",
- temp2,CS4281_CFLR_DEFAULT));
- writel(CS4281_CFLR_DEFAULT, card->pBA0 + BA0_CFLR);
- temp2 = readl(card->pBA0 + BA0_CFLR);
- if(temp2 != CS4281_CFLR_DEFAULT)
- {
- CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_INFO
- "cs4281: cs4281_hw_init() Invalid hardware - unable to configure CFLR\n"));
- return 1;
- }
- }
-
- //***************************************7
- // Set up the Sound System Configuration
- //***************************************
-
- // Set the 'Configuration Write Protect' register
- // to 4281h. Allows vendor-defined configuration
- // space between 0e4h and 0ffh to be written.
-
- writel(0x4281, card->pBA0 + BA0_CWPR); // (3e0h)
-
- // (0), 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.
-
- writel(0, card->pBA0 + BA0_CLKCR1); // (400h)
- writel(0, card->pBA0 + BA0_SERMC); // (420h)
-
-
- // (1), Make ESYN go to zero to turn off
- // the Sync pulse on the AC97 link.
-
- writel(0, card->pBA0 + BA0_ACCTL);
- udelay(50);
-
-
- // (2) 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.
-
- writel(0, card->pBA0 + BA0_SPMC); // (3ech)
- udelay(100);
- writel(SPMC_RSTN, card->pBA0 + BA0_SPMC);
- delayus(card,50000); // Wait 50 ms for ABITCLK to become stable.
-
- // (3) Turn on the Sound System Clocks.
- writel(CLKCR1_PLLP, card->pBA0 + BA0_CLKCR1); // (400h)
- delayus(card,50000); // Wait for the PLL to stabilize.
- // Turn on clocking of the core (CLKCR1(400h) = 0x00000030)
- writel(CLKCR1_PLLP | CLKCR1_SWCE, card->pBA0 + BA0_CLKCR1);
-
- // (4) Power on everything for now..
- writel(0x7E, card->pBA0 + BA0_SSPM); // (740h)
-
- // (5) Wait for clock stabilization.
- for (temp1 = 0; temp1 < 1000; temp1++) {
- udelay(1000);
- if (readl(card->pBA0 + BA0_CLKCR1) & CLKCR1_DLLRDY)
- break;
- }
- if (!(readl(card->pBA0 + BA0_CLKCR1) & CLKCR1_DLLRDY)) {
- CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
- "cs4281: DLLRDY failed!\n"));
- return -EIO;
- }
- // (6) Enable ASYNC generation.
- writel(ACCTL_ESYN, card->pBA0 + BA0_ACCTL); // (460h)
-
- // 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.)
- delayus(card,50000);
-
- // Set the serial port timing configuration, so that the
- // clock control circuit gets its clock from the right place.
- writel(SERMC_PTC_AC97, card->pBA0 + BA0_SERMC); // (420h)=2.
-
- // (7) Wait for the codec ready signal from the AC97 codec.
-
- for (temp1 = 0; temp1 < 1000; temp1++) {
- // Delay a mil to let things settle out and
- // to prevent retrying the read too quickly.
- udelay(1000);
- if (readl(card->pBA0 + BA0_ACSTS) & ACSTS_CRDY) // If ready, (464h)
- break; // exit the 'for' loop.
- }
- if (!(readl(card->pBA0 + BA0_ACSTS) & ACSTS_CRDY)) // If never came ready,
- {
- CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_ERR
- "cs4281: ACSTS never came ready!\n"));
- return -EIO; // exit initialization.
- }
- // (8) Assert the 'valid frame' signal so we can
- // begin sending commands to the AC97 codec.
- writel(ACCTL_VFRM | ACCTL_ESYN, card->pBA0 + BA0_ACCTL); // (460h)
-
- // (9), Wait until CODEC calibration is finished.
- // Print an error message if it doesn't.
- for (temp1 = 0; temp1 < 1000; temp1++) {
- delayus(card,10000);
- // Read the AC97 Powerdown Control/Status Register.
- cs4281_read_ac97(card, BA0_AC97_POWERDOWN, &temp2);
- if ((temp2 & 0x0000000F) == 0x0000000F)
- break;
- }
- if ((temp2 & 0x0000000F) != 0x0000000F) {
- CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_ERR
- "cs4281: Codec failed to calibrate. Status = %.8x.\n",
- temp2));
- return -EIO;
- }
- // (10), Set the serial port timing configuration, so that the
- // clock control circuit gets its clock from the right place.
- writel(SERMC_PTC_AC97, card->pBA0 + BA0_SERMC); // (420h)=2.
-
-
- // (11) Wait until we've sampled input slots 3 & 4 as valid, meaning
- // that the codec is pumping ADC data across the AC link.
- for (temp1 = 0; temp1 < 1000; temp1++) {
- // Delay a mil to let things settle out and
- // to prevent retrying the read too quickly.
- delayus(card,1000); //(test)
-
- // Read the input slot valid register; See
- // if input slots 3 and 4 are valid yet.
- if (
- (readl(card->pBA0 + BA0_ACISV) &
- (ACISV_ISV3 | ACISV_ISV4)) ==
- (ACISV_ISV3 | ACISV_ISV4)) break; // Exit the 'for' if slots are valid.
- }
- // If we never got valid data, exit initialization.
- if ((readl(card->pBA0 + BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4))
- != (ACISV_ISV3 | ACISV_ISV4)) {
- CS_DBGOUT(CS_FUNCTION, 2,
- printk(KERN_ERR
- "cs4281: Never got valid data!\n"));
- return -EIO; // If no valid data, exit initialization.
- }
- // (12), Start digital data transfer of audio data to the codec.
- writel(ACOSV_SLV3 | ACOSV_SLV4, card->pBA0 + BA0_ACOSV); // (468h)
-
-
- //**************************************
- // Unmute the Master and Alternate
- // (headphone) volumes. Set to max.
- //**************************************
- cs4281_write_ac97(card, BA0_AC97_HEADPHONE_VOLUME, 0);
- cs4281_write_ac97(card, BA0_AC97_MASTER_VOLUME, 0);
-
- //******************************************
- // Power on the DAC(AddDACUser()from main())
- //******************************************
- cs4281_read_ac97(card, BA0_AC97_POWERDOWN, &temp1);
- cs4281_write_ac97(card, BA0_AC97_POWERDOWN, temp1 &= 0xfdff);
-
- // Wait until we sample a DAC ready state.
- for (temp2 = 0; temp2 < 32; temp2++) {
- // Let's wait a mil to let things settle.
- delayus(card,1000);
- // Read the current state of the power control reg.
- cs4281_read_ac97(card, BA0_AC97_POWERDOWN, &temp1);
- // If the DAC ready state bit is set, stop waiting.
- if (temp1 & 0x2)
- break;
- }
-
- //******************************************
- // Power on the ADC(AddADCUser()from main())
- //******************************************
- cs4281_read_ac97(card, BA0_AC97_POWERDOWN, &temp1);
- cs4281_write_ac97(card, BA0_AC97_POWERDOWN, temp1 &= 0xfeff);
-
- // Wait until we sample ADC ready state.
- for (temp2 = 0; temp2 < 32; temp2++) {
- // Let's wait a mil to let things settle.
- delayus(card,1000);
- // Read the current state of the power control reg.
- cs4281_read_ac97(card, BA0_AC97_POWERDOWN, &temp1);
- // If the ADC ready state bit is set, stop waiting.
- if (temp1 & 0x1)
- break;
- }
- // Set up 4281 Register contents that
- // don't change for boot duration.
-
- // For playback, we map AC97 slot 3 and 4(Left
- // & Right PCM playback) to DMA Channel 0.
- // Set the fifo to be 15 bytes at offset zero.
-
- ac97_slotid = 0x01000f00; // FCR0.RS[4:0]=1(=>slot4, right PCM playback).
- // FCR0.LS[4:0]=0(=>slot3, left PCM playback).
- // FCR0.SZ[6-0]=15; FCR0.OF[6-0]=0.
- writel(ac97_slotid, card->pBA0 + BA0_FCR0); // (180h)
- writel(ac97_slotid | FCRn_FEN, card->pBA0 + BA0_FCR0); // Turn on FIFO Enable.
-
- // For capture, we map AC97 slot 10 and 11(Left
- // and Right PCM Record) to DMA Channel 1.
- // Set the fifo to be 15 bytes at offset sixteen.
- ac97_slotid = 0x0B0A0f10; // FCR1.RS[4:0]=11(=>slot11, right PCM record).
- // FCR1.LS[4:0]=10(=>slot10, left PCM record).
- // FCR1.SZ[6-0]=15; FCR1.OF[6-0]=16.
- writel(ac97_slotid | FCRn_PSH, card->pBA0 + BA0_FCR1); // (184h)
- writel(ac97_slotid | FCRn_FEN, card->pBA0 + BA0_FCR1); // Turn on FIFO Enable.
-
- // Map the Playback SRC to the same AC97 slots(3 & 4--
- // --Playback left & right)as DMA channel 0.
- // Map the record SRC to the same AC97 slots(10 & 11--
- // -- Record left & right) as DMA channel 1.
-
- ac97_slotid = 0x0b0a0100; // SCRSA.PRSS[4:0]=1(=>slot4, right PCM playback).
- // SCRSA.PLSS[4:0]=0(=>slot3, left PCM playback).
- // SCRSA.CRSS[4:0]=11(=>slot11, right PCM record)
- // SCRSA.CLSS[4:0]=10(=>slot10, left PCM record).
- writel(ac97_slotid, card->pBA0 + BA0_SRCSA); // (75ch)
-
- // Set 'Half Terminal Count Interrupt Enable' and 'Terminal
- // Count Interrupt Enable' in DMA Control Registers 0 & 1.
- // Set 'MSK' flag to 1 to keep the DMA engines paused.
- temp1 = (DCRn_HTCIE | DCRn_TCIE | DCRn_MSK); // (00030001h)
- writel(temp1, card->pBA0 + BA0_DCR0); // (154h
- writel(temp1, card->pBA0 + BA0_DCR1); // (15ch)
-
- // Set 'Auto-Initialize Control' to 'enabled'; For playback,
- // set 'Transfer Type Control'(TR[1:0]) to 'read transfer',
- // for record, set Transfer Type Control to 'write transfer'.
- // All other bits set to zero; Some will be changed @ transfer start.
- temp1 = (DMRn_DMA | DMRn_AUTO | DMRn_TR_READ); // (20000018h)
- writel(temp1, card->pBA0 + BA0_DMR0); // (150h)
- temp1 = (DMRn_DMA | DMRn_AUTO | DMRn_TR_WRITE); // (20000014h)
- writel(temp1, card->pBA0 + BA0_DMR1); // (158h)
-
- // Enable DMA interrupts generally, and
- // DMA0 & DMA1 interrupts specifically.
- temp1 = readl(card->pBA0 + BA0_HIMR) & 0xfffbfcff;
- writel(temp1, card->pBA0 + BA0_HIMR);
-
- CS_DBGOUT(CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: cs4281_hw_init()- 0\n"));
- return 0;
-}
-
-#ifndef NOT_CS4281_PM
-static void printpm(struct cs4281_state *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));
-
-}
-static void printpipe(struct cs4281_pipeline *pl)
-{
-
- CS_DBGOUT(CS_PM, 9, printk("pm struct:\n"));
- CS_DBGOUT(CS_PM, 9, printk("flags:0x%x number: 0%x\n",
- (unsigned)pl->flags,pl->number));
- CS_DBGOUT(CS_PM, 9, printk("u32DBAnValue: 0%x u32DBCnValue: 0x%x\n",
- pl->u32DBAnValue,pl->u32DBCnValue));
- CS_DBGOUT(CS_PM, 9, printk("u32DMRnValue: 0x%x u32DCRnValue: 0x%x\n",
- pl->u32DMRnValue,pl->u32DCRnValue));
- CS_DBGOUT(CS_PM, 9, printk("u32DBAnAddress: 0x%x u32DBCnAddress: 0x%x\n",
- pl->u32DBAnAddress,pl->u32DBCnAddress));
- CS_DBGOUT(CS_PM, 9, printk("u32DCAnAddress: 0x%x u32DCCnAddress: 0x%x\n",
- pl->u32DCCnAddress,pl->u32DCCnAddress));
- CS_DBGOUT(CS_PM, 9, printk("u32DMRnAddress: 0x%x u32DCRnAddress: 0x%x\n",
- pl->u32DMRnAddress,pl->u32DCRnAddress));
- CS_DBGOUT(CS_PM, 9, printk("u32HDSRnAddress: 0x%x u32DBAn_Save: 0x%x\n",
- pl->u32HDSRnAddress,pl->u32DBAn_Save));
- CS_DBGOUT(CS_PM, 9, printk("u32DBCn_Save: 0x%x u32DMRn_Save: 0x%x\n",
- pl->u32DBCn_Save,pl->u32DMRn_Save));
- CS_DBGOUT(CS_PM, 9, printk("u32DCRn_Save: 0x%x u32DCCn_Save: 0x%x\n",
- pl->u32DCRn_Save,pl->u32DCCn_Save));
- CS_DBGOUT(CS_PM, 9, printk("u32DCAn_Save: 0x%x\n",
- pl->u32DCAn_Save));
- CS_DBGOUT(CS_PM, 9, printk("u32FCRn_Save: 0x%x u32FSICn_Save: 0x%x\n",
- pl->u32FCRn_Save,pl->u32FSICn_Save));
- CS_DBGOUT(CS_PM, 9, printk("u32FCRnValue: 0x%x u32FSICnValue: 0x%x\n",
- pl->u32FCRnValue,pl->u32FSICnValue));
- CS_DBGOUT(CS_PM, 9, printk("u32FCRnAddress: 0x%x u32FSICnAddress: 0x%x\n",
- pl->u32FCRnAddress,pl->u32FSICnAddress));
- CS_DBGOUT(CS_PM, 9, printk("u32FPDRnValue: 0x%x u32FPDRnAddress: 0x%x\n",
- pl->u32FPDRnValue,pl->u32FPDRnAddress));
-}
-static void printpipelines(struct cs4281_state *s)
-{
- int i;
- for(i=0;i<CS4281_NUMBER_OF_PIPELINES;i++)
- {
- if(s->pl[i].flags & CS4281_PIPELINE_VALID)
- {
- printpipe(&s->pl[i]);
- }
- }
-}
-/****************************************************************************
-*
-* Suspend - save the ac97 regs, mute the outputs and power down the part.
-*
-****************************************************************************/
-static void cs4281_ac97_suspend(struct cs4281_state *s)
-{
- int Count,i;
-
- CS_DBGOUT(CS_PM, 9, printk("cs4281: cs4281_ac97_suspend()+\n"));
-/*
-* change the state, save the current hwptr, then stop the dac/adc
-*/
- s->pm.flags &= ~CS4281_PM_IDLE;
- s->pm.flags |= CS4281_PM_SUSPENDING;
- s->pm.u32hwptr_playback = readl(s->pBA0 + BA0_DCA0);
- s->pm.u32hwptr_capture = readl(s->pBA0 + BA0_DCA1);
- stop_dac(s);
- stop_adc(s);
-
- for(Count = 0x2, i=0; (Count <= CS4281_AC97_HIGHESTREGTORESTORE)
- && (i < CS4281_AC97_NUMBER_RESTORE_REGS);
- Count += 2, i++)
- {
- cs4281_read_ac97(s, BA0_AC97_RESET + Count, &s->pm.ac97[i]);
- }
-/*
-* 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.
-*/
- cs4281_read_ac97(s, BA0_AC97_MASTER_VOLUME, &s->pm.u32AC97_master_volume);
- cs4281_read_ac97(s, BA0_AC97_HEADPHONE_VOLUME, &s->pm.u32AC97_headphone_volume);
- cs4281_read_ac97(s, BA0_AC97_MASTER_VOLUME_MONO, &s->pm.u32AC97_master_volume_mono);
- cs4281_read_ac97(s, BA0_AC97_PCM_OUT_VOLUME, &s->pm.u32AC97_pcm_out_volume);
-
- cs4281_write_ac97(s, BA0_AC97_MASTER_VOLUME, 0x8000);
- cs4281_write_ac97(s, BA0_AC97_HEADPHONE_VOLUME, 0x8000);
- cs4281_write_ac97(s, BA0_AC97_MASTER_VOLUME_MONO, 0x8000);
- cs4281_write_ac97(s, BA0_AC97_PCM_OUT_VOLUME, 0x8000);
-
- cs4281_read_ac97(s, BA0_AC97_POWERDOWN, &s->pm.u32AC97_powerdown);
- cs4281_read_ac97(s, BA0_AC97_GENERAL_PURPOSE, &s->pm.u32AC97_general_purpose);
-
-/*
-* And power down everything on the AC97 codec.
-*/
- cs4281_write_ac97(s, BA0_AC97_POWERDOWN, 0xff00);
- CS_DBGOUT(CS_PM, 9, printk("cs4281: cs4281_ac97_suspend()-\n"));
-}
-
-/****************************************************************************
-*
-* Resume - power up the part and restore its registers..
-*
-****************************************************************************/
-static void cs4281_ac97_resume(struct cs4281_state *s)
-{
- int Count,i;
-
- CS_DBGOUT(CS_PM, 9, printk("cs4281: cs4281_ac97_resume()+\n"));
-
-/* do not save the power state registers at this time
- //
- // If we saved away the power control registers, write them into the
- // shadows so those saved values get restored instead of the current
- // shadowed value.
- //
- if( bPowerStateSaved )
- {
- PokeShadow( 0x26, ulSaveReg0x26 );
- bPowerStateSaved = FALSE;
- }
-*/
-
-//
-// 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.
-//
- cs4281_write_ac97(s, BA0_AC97_GENERAL_PURPOSE, s->pm.u32AC97_general_purpose);
-
-//
-// Now, while the outputs are still muted, restore the state of power
-// on the AC97 part.
-//
- cs4281_write_ac97(s, BA0_AC97_POWERDOWN, s->pm.u32AC97_powerdown);
-
-/*
-* Restore just the first set of registers, from register number
-* 0x02 to the register number that ulHighestRegToRestore specifies.
-*/
- for( Count = 0x2, i=0;
- (Count <= CS4281_AC97_HIGHESTREGTORESTORE)
- && (i < CS4281_AC97_NUMBER_RESTORE_REGS);
- Count += 2, i++)
- {
- cs4281_write_ac97(s, BA0_AC97_RESET + Count, s->pm.ac97[i]);
- }
- CS_DBGOUT(CS_PM, 9, printk("cs4281: cs4281_ac97_resume()-\n"));
-}
-
-/* do not save the power state registers at this time
-****************************************************************************
-*
-* SavePowerState - Save the power registers away.
-*
-****************************************************************************
-void
-HWAC97codec::SavePowerState(void)
-{
- ENTRY(TM_OBJECTCALLS, "HWAC97codec::SavePowerState()\r\n");
-
- ulSaveReg0x26 = PeekShadow(0x26);
-
- //
- // Note that we have saved registers that need to be restored during a
- // resume instead of ulAC97Regs[].
- //
- bPowerStateSaved = TRUE;
-
-} // SavePowerState
-*/
-
-static void cs4281_SuspendFIFO(struct cs4281_state *s, struct cs4281_pipeline *pl)
-{
- /*
- * We need to save the contents of the BASIC FIFO Registers.
- */
- pl->u32FCRn_Save = readl(s->pBA0 + pl->u32FCRnAddress);
- pl->u32FSICn_Save = readl(s->pBA0 + pl->u32FSICnAddress);
-}
-static void cs4281_ResumeFIFO(struct cs4281_state *s, struct cs4281_pipeline *pl)
-{
- /*
- * We need to restore the contents of the BASIC FIFO Registers.
- */
- writel(pl->u32FCRn_Save,s->pBA0 + pl->u32FCRnAddress);
- writel(pl->u32FSICn_Save,s->pBA0 + pl->u32FSICnAddress);
-}
-static void cs4281_SuspendDMAengine(struct cs4281_state *s, struct cs4281_pipeline *pl)
-{
- //
- // We need to save the contents of the BASIC DMA Registers.
- //
- pl->u32DBAn_Save = readl(s->pBA0 + pl->u32DBAnAddress);
- pl->u32DBCn_Save = readl(s->pBA0 + pl->u32DBCnAddress);
- pl->u32DMRn_Save = readl(s->pBA0 + pl->u32DMRnAddress);
- pl->u32DCRn_Save = readl(s->pBA0 + pl->u32DCRnAddress);
- pl->u32DCCn_Save = readl(s->pBA0 + pl->u32DCCnAddress);
- pl->u32DCAn_Save = readl(s->pBA0 + pl->u32DCAnAddress);
-}
-static void cs4281_ResumeDMAengine(struct cs4281_state *s, struct cs4281_pipeline *pl)
-{
- //
- // We need to save the contents of the BASIC DMA Registers.
- //
- writel( pl->u32DBAn_Save, s->pBA0 + pl->u32DBAnAddress);
- writel( pl->u32DBCn_Save, s->pBA0 + pl->u32DBCnAddress);
- writel( pl->u32DMRn_Save, s->pBA0 + pl->u32DMRnAddress);
- writel( pl->u32DCRn_Save, s->pBA0 + pl->u32DCRnAddress);
- writel( pl->u32DCCn_Save, s->pBA0 + pl->u32DCCnAddress);
- writel( pl->u32DCAn_Save, s->pBA0 + pl->u32DCAnAddress);
-}
-
-static int cs4281_suspend(struct cs4281_state *s)
-{
- int i;
- u32 u32CLKCR1;
- struct cs4281_pm *pm = &s->pm;
- CS_DBGOUT(CS_PM | CS_FUNCTION, 9,
- printk("cs4281: cs4281_suspend()+ flags=%d\n",
- (unsigned)s->pm.flags));
-/*
-* check the current state, only suspend if IDLE
-*/
- if(!(s->pm.flags & CS4281_PM_IDLE))
- {
- CS_DBGOUT(CS_PM | CS_ERROR, 2,
- printk("cs4281: cs4281_suspend() unable to suspend, not IDLE\n"));
- return 1;
- }
- s->pm.flags &= ~CS4281_PM_IDLE;
- s->pm.flags |= CS4281_PM_SUSPENDING;
-
-//
-// Gershwin CLKRUN - Set CKRA
-//
- u32CLKCR1 = readl(s->pBA0 + BA0_CLKCR1);
-
- pm->u32CLKCR1_SAVE = u32CLKCR1;
- if(!(u32CLKCR1 & 0x00010000 ) )
- writel(u32CLKCR1 | 0x00010000, s->pBA0 + BA0_CLKCR1);
-
-//
-// First, turn on the clocks (yikes) to the devices, so that they will
-// respond when we try to save their state.
-//
- if(!(u32CLKCR1 & CLKCR1_SWCE))
- {
- writel(u32CLKCR1 | CLKCR1_SWCE , s->pBA0 + BA0_CLKCR1);
- }
-
- //
- // Save the power state
- //
- pm->u32SSPMValue = readl(s->pBA0 + BA0_SSPM);
-
- //
- // Disable interrupts.
- //
- writel(HICR_CHGM, s->pBA0 + BA0_HICR);
-
- //
- // Save the PCM Playback Left and Right Volume Control.
- //
- pm->u32PPLVCvalue = readl(s->pBA0 + BA0_PPLVC);
- pm->u32PPRVCvalue = readl(s->pBA0 + BA0_PPRVC);
-
- //
- // Save the FM Synthesis Left and Right Volume Control.
- //
- pm->u32FMLVCvalue = readl(s->pBA0 + BA0_FMLVC);
- pm->u32FMRVCvalue = readl(s->pBA0 + BA0_FMRVC);
-
- //
- // Save the GPIOR value.
- //
- pm->u32GPIORvalue = readl(s->pBA0 + BA0_GPIOR);
-
- //
- // Save the JSCTL value.
- //
- pm->u32JSCTLvalue = readl(s->pBA0 + BA0_GPIOR);
-
- //
- // Save Sound System Control Register
- //
- pm->u32SSCR = readl(s->pBA0 + BA0_SSCR);
-
- //
- // Save SRC Slot Assinment register
- //
- pm->u32SRCSA = readl(s->pBA0 + BA0_SRCSA);
-
- //
- // Save sample rate
- //
- pm->u32DacASR = readl(s->pBA0 + BA0_PASR);
- pm->u32AdcASR = readl(s->pBA0 + BA0_CASR);
- pm->u32DacSR = readl(s->pBA0 + BA0_DACSR);
- pm->u32AdcSR = readl(s->pBA0 + BA0_ADCSR);
-
- //
- // Loop through all of the PipeLines
- //
- for(i = 0; i < CS4281_NUMBER_OF_PIPELINES; i++)
- {
- if(s->pl[i].flags & CS4281_PIPELINE_VALID)
- {
- //
- // Ask the DMAengines and FIFOs to Suspend.
- //
- cs4281_SuspendDMAengine(s,&s->pl[i]);
- cs4281_SuspendFIFO(s,&s->pl[i]);
- }
- }
- //
- // We need to save the contents of the Midi Control Register.
- //
- pm->u32MIDCR_Save = readl(s->pBA0 + BA0_MIDCR);
-/*
-* save off the AC97 part information
-*/
- cs4281_ac97_suspend(s);
-
- //
- // Turn off the serial ports.
- //
- writel(0, s->pBA0 + BA0_SERMC);
-
- //
- // Power off FM, Joystick, AC link,
- //
- writel(0, s->pBA0 + BA0_SSPM);
-
- //
- // DLL off.
- //
- writel(0, s->pBA0 + BA0_CLKCR1);
-
- //
- // AC link off.
- //
- writel(0, s->pBA0 + BA0_SPMC);
-
- //
- // Put the chip into D3(hot) state.
- //
- // PokeBA0(BA0_PMCS, 0x00000003);
-
- //
- // Gershwin CLKRUN - Clear CKRA
- //
- u32CLKCR1 = readl(s->pBA0 + BA0_CLKCR1);
- writel(u32CLKCR1 & 0xFFFEFFFF, s->pBA0 + BA0_CLKCR1);
-
-#ifdef CSDEBUG
- printpm(s);
- printpipelines(s);
-#endif
-
- s->pm.flags &= ~CS4281_PM_SUSPENDING;
- s->pm.flags |= CS4281_PM_SUSPENDED;
-
- CS_DBGOUT(CS_PM | CS_FUNCTION, 9,
- printk("cs4281: cs4281_suspend()- flags=%d\n",
- (unsigned)s->pm.flags));
- return 0;
-}
-
-static int cs4281_resume(struct cs4281_state *s)
-{
- int i;
- unsigned temp1;
- u32 u32CLKCR1;
- struct cs4281_pm *pm = &s->pm;
- CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
- printk( "cs4281: cs4281_resume()+ flags=%d\n",
- (unsigned)s->pm.flags));
- if(!(s->pm.flags & CS4281_PM_SUSPENDED))
- {
- CS_DBGOUT(CS_PM | CS_ERROR, 2,
- printk("cs4281: cs4281_resume() unable to resume, not SUSPENDED\n"));
- return 1;
- }
- s->pm.flags &= ~CS4281_PM_SUSPENDED;
- s->pm.flags |= CS4281_PM_RESUMING;
-
-//
-// Gershwin CLKRUN - Set CKRA
-//
- u32CLKCR1 = readl(s->pBA0 + BA0_CLKCR1);
- writel(u32CLKCR1 | 0x00010000, s->pBA0 + BA0_CLKCR1);
-
- //
- // set the power state.
- //
- //old PokeBA0(BA0_PMCS, 0);
-
- //
- // Program the clock circuit and serial ports.
- //
- temp1 = cs4281_hw_init(s);
- if (temp1) {
- CS_DBGOUT(CS_ERROR | CS_INIT, 1,
- printk(KERN_ERR
- "cs4281: resume cs4281_hw_init() error.\n"));
- return -1;
- }
-
- //
- // restore the Power state
- //
- writel(pm->u32SSPMValue, s->pBA0 + BA0_SSPM);
-
- //
- // Set post SRC mix setting (FM or ALT48K)
- //
- writel(pm->u32SSPM_BITS, s->pBA0 + BA0_SSPM);
-
- //
- // Loop through all of the PipeLines
- //
- for(i = 0; i < CS4281_NUMBER_OF_PIPELINES; i++)
- {
- if(s->pl[i].flags & CS4281_PIPELINE_VALID)
- {
- //
- // Ask the DMAengines and FIFOs to Resume.
- //
- cs4281_ResumeDMAengine(s,&s->pl[i]);
- cs4281_ResumeFIFO(s,&s->pl[i]);
- }
- }
- //
- // We need to restore the contents of the Midi Control Register.
- //
- writel(pm->u32MIDCR_Save, s->pBA0 + BA0_MIDCR);
-
- cs4281_ac97_resume(s);
- //
- // Restore the PCM Playback Left and Right Volume Control.
- //
- writel(pm->u32PPLVCvalue, s->pBA0 + BA0_PPLVC);
- writel(pm->u32PPRVCvalue, s->pBA0 + BA0_PPRVC);
-
- //
- // Restore the FM Synthesis Left and Right Volume Control.
- //
- writel(pm->u32FMLVCvalue, s->pBA0 + BA0_FMLVC);
- writel(pm->u32FMRVCvalue, s->pBA0 + BA0_FMRVC);
-
- //
- // Restore the JSCTL value.
- //
- writel(pm->u32JSCTLvalue, s->pBA0 + BA0_JSCTL);
-
- //
- // Restore the GPIOR register value.
- //
- writel(pm->u32GPIORvalue, s->pBA0 + BA0_GPIOR);
-
- //
- // Restore Sound System Control Register
- //
- writel(pm->u32SSCR, s->pBA0 + BA0_SSCR);
-
- //
- // Restore SRC Slot Assignment register
- //
- writel(pm->u32SRCSA, s->pBA0 + BA0_SRCSA);
-
- //
- // Restore sample rate
- //
- writel(pm->u32DacASR, s->pBA0 + BA0_PASR);
- writel(pm->u32AdcASR, s->pBA0 + BA0_CASR);
- writel(pm->u32DacSR, s->pBA0 + BA0_DACSR);
- writel(pm->u32AdcSR, s->pBA0 + BA0_ADCSR);
-
- //
- // Restore CFL1/2 registers we saved to compensate for OEM bugs.
- //
- // PokeBA0(BA0_CFLR, ulConfig);
-
- //
- // Gershwin CLKRUN - Clear CKRA
- //
- writel(pm->u32CLKCR1_SAVE, s->pBA0 + BA0_CLKCR1);
-
- //
- // Enable interrupts on the part.
- //
- writel(HICR_IEV | HICR_CHGM, s->pBA0 + BA0_HICR);
-
-#ifdef CSDEBUG
- printpm(s);
- printpipelines(s);
-#endif
-/*
-* change the state, restore the current hwptrs, then stop the dac/adc
-*/
- s->pm.flags |= CS4281_PM_IDLE;
- s->pm.flags &= ~(CS4281_PM_SUSPENDING | CS4281_PM_SUSPENDED
- | CS4281_PM_RESUMING | CS4281_PM_RESUMED);
-
- writel(s->pm.u32hwptr_playback, s->pBA0 + BA0_DCA0);
- writel(s->pm.u32hwptr_capture, s->pBA0 + BA0_DCA1);
- start_dac(s);
- start_adc(s);
-
- CS_DBGOUT(CS_PM | CS_FUNCTION, 9, printk("cs4281: cs4281_resume()- flags=%d\n",
- (unsigned)s->pm.flags));
- return 0;
-}
-
-#endif
-
-//******************************************************************************
-// "cs4281_play_rate()" --
-//******************************************************************************
-static void cs4281_play_rate(struct cs4281_state *card, u32 playrate)
-{
- u32 DACSRvalue = 1;
-
- // Based on the sample rate, program the DACSR register.
- if (playrate == 8000)
- DACSRvalue = 5;
- if (playrate == 11025)
- DACSRvalue = 4;
- else if (playrate == 22050)
- DACSRvalue = 2;
- else if (playrate == 44100)
- DACSRvalue = 1;
- else if ((playrate <= 48000) && (playrate >= 6023))
- DACSRvalue = 24576000 / (playrate * 16);
- else if (playrate < 6023)
- // Not allowed by open.
- return;
- else if (playrate > 48000)
- // Not allowed by open.
- return;
- CS_DBGOUT(CS_WAVE_WRITE | CS_PARMS, 2, printk(KERN_INFO
- "cs4281: cs4281_play_rate(): DACSRvalue=0x%.8x playrate=%d\n",
- DACSRvalue, playrate));
- // Write the 'sample rate select code'
- // to the 'DAC Sample Rate' register.
- writel(DACSRvalue, card->pBA0 + BA0_DACSR); // (744h)
-}
-
-//******************************************************************************
-// "cs4281_record_rate()" -- Initialize the record sample rate converter.
-//******************************************************************************
-static void cs4281_record_rate(struct cs4281_state *card, u32 outrate)
-{
- u32 ADCSRvalue = 1;
-
- //
- // Based on the sample rate, program the ADCSR register
- //
- if (outrate == 8000)
- ADCSRvalue = 5;
- if (outrate == 11025)
- ADCSRvalue = 4;
- else if (outrate == 22050)
- ADCSRvalue = 2;
- else if (outrate == 44100)
- ADCSRvalue = 1;
- else if ((outrate <= 48000) && (outrate >= 6023))
- ADCSRvalue = 24576000 / (outrate * 16);
- else if (outrate < 6023) {
- // Not allowed by open.
- return;
- } else if (outrate > 48000) {
- // Not allowed by open.
- return;
- }
- CS_DBGOUT(CS_WAVE_READ | CS_PARMS, 2, printk(KERN_INFO
- "cs4281: cs4281_record_rate(): ADCSRvalue=0x%.8x outrate=%d\n",
- ADCSRvalue, outrate));
- // Write the 'sample rate select code
- // to the 'ADC Sample Rate' register.
- writel(ADCSRvalue, card->pBA0 + BA0_ADCSR); // (748h)
-}
-
-
-
-static void stop_dac(struct cs4281_state *s)
-{
- unsigned long flags;
- unsigned temp1;
-
- CS_DBGOUT(CS_WAVE_WRITE, 3, printk(KERN_INFO "cs4281: stop_dac():\n"));
- spin_lock_irqsave(&s->lock, flags);
- s->ena &= ~FMODE_WRITE;
- temp1 = readl(s->pBA0 + BA0_DCR0) | DCRn_MSK;
- writel(temp1, s->pBA0 + BA0_DCR0);
-
- spin_unlock_irqrestore(&s->lock, flags);
-}
-
-
-static void start_dac(struct cs4281_state *s)
-{
- unsigned long flags;
- unsigned temp1;
-
- CS_DBGOUT(CS_FUNCTION, 3, printk(KERN_INFO "cs4281: start_dac()+\n"));
- spin_lock_irqsave(&s->lock, flags);
- if (!(s->ena & FMODE_WRITE) && (s->dma_dac.mapped ||
- (s->dma_dac.count > 0
- && s->dma_dac.ready))
-#ifndef NOT_CS4281_PM
- && (s->pm.flags & CS4281_PM_IDLE))
-#else
-)
-#endif
- {
- s->ena |= FMODE_WRITE;
- temp1 = readl(s->pBA0 + BA0_DCR0) & ~DCRn_MSK; // Clear DMA0 channel mask.
- writel(temp1, s->pBA0 + BA0_DCR0); // Start DMA'ing.
- writel(HICR_IEV | HICR_CHGM, s->pBA0 + BA0_HICR); // Enable interrupts.
-
- writel(7, s->pBA0 + BA0_PPRVC);
- writel(7, s->pBA0 + BA0_PPLVC);
- CS_DBGOUT(CS_WAVE_WRITE | CS_PARMS, 8, printk(KERN_INFO
- "cs4281: start_dac(): writel 0x%x start dma\n", temp1));
-
- }
- spin_unlock_irqrestore(&s->lock, flags);
- CS_DBGOUT(CS_FUNCTION, 3,
- printk(KERN_INFO "cs4281: start_dac()-\n"));
-}
-
-
-static void stop_adc(struct cs4281_state *s)
-{
- unsigned long flags;
- unsigned temp1;
-
- CS_DBGOUT(CS_FUNCTION, 3,
- printk(KERN_INFO "cs4281: stop_adc()+\n"));
-
- spin_lock_irqsave(&s->lock, flags);
- s->ena &= ~FMODE_READ;
-
- if (s->conversion == 1) {
- s->conversion = 0;
- s->prop_adc.fmt = s->prop_adc.fmt_original;
- }
- temp1 = readl(s->pBA0 + BA0_DCR1) | DCRn_MSK;
- writel(temp1, s->pBA0 + BA0_DCR1);
- spin_unlock_irqrestore(&s->lock, flags);
- CS_DBGOUT(CS_FUNCTION, 3,
- printk(KERN_INFO "cs4281: stop_adc()-\n"));
-}
-
-
-static void start_adc(struct cs4281_state *s)
-{
- unsigned long flags;
- unsigned temp1;
-
- CS_DBGOUT(CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: start_adc()+\n"));
-
- if (!(s->ena & FMODE_READ) &&
- (s->dma_adc.mapped || s->dma_adc.count <=
- (signed) (s->dma_adc.dmasize - 2 * s->dma_adc.fragsize))
- && s->dma_adc.ready
-#ifndef NOT_CS4281_PM
- && (s->pm.flags & CS4281_PM_IDLE))
-#else
-)
-#endif
- {
- if (s->prop_adc.fmt & AFMT_S8 || s->prop_adc.fmt & AFMT_U8) {
- //
- // now only use 16 bit capture, due to truncation issue
- // in the chip, noticable distortion occurs.
- // allocate buffer and then convert from 16 bit to
- // 8 bit for the user buffer.
- //
- s->prop_adc.fmt_original = s->prop_adc.fmt;
- if (s->prop_adc.fmt & AFMT_S8) {
- s->prop_adc.fmt &= ~AFMT_S8;
- s->prop_adc.fmt |= AFMT_S16_LE;
- }
- if (s->prop_adc.fmt & AFMT_U8) {
- s->prop_adc.fmt &= ~AFMT_U8;
- s->prop_adc.fmt |= AFMT_U16_LE;
- }
- //
- // prog_dmabuf_adc performs a stop_adc() but that is
- // ok since we really haven't started the DMA yet.
- //
- prog_codec(s, CS_TYPE_ADC);
-
- if (prog_dmabuf_adc(s) != 0) {
- CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO
- "cs4281: start_adc(): error in prog_dmabuf_adc\n"));
- }
- s->conversion = 1;
- }
- spin_lock_irqsave(&s->lock, flags);
- s->ena |= FMODE_READ;
- temp1 = readl(s->pBA0 + BA0_DCR1) & ~DCRn_MSK; // Clear DMA1 channel mask bit.
- writel(temp1, s->pBA0 + BA0_DCR1); // Start recording
- writel(HICR_IEV | HICR_CHGM, s->pBA0 + BA0_HICR); // Enable interrupts.
- spin_unlock_irqrestore(&s->lock, flags);
-
- CS_DBGOUT(CS_PARMS, 6, printk(KERN_INFO
- "cs4281: start_adc(): writel 0x%x \n", temp1));
- }
- CS_DBGOUT(CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: start_adc()-\n"));
-
-}
-
-
-// ---------------------------------------------------------------------
-
-#define DMABUF_MINORDER 1 // ==> min buffer size = 8K.
-
-
-static void dealloc_dmabuf(struct cs4281_state *s, struct dmabuf *db)
-{
- struct page *map, *mapend;
-
- if (db->rawbuf) {
- // Undo prog_dmabuf()'s marking the pages as reserved
- mapend =
- virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) -
- 1);
- for (map = virt_to_page(db->rawbuf); map <= mapend; map++)
- ClearPageReserved(map);
- free_dmabuf(s, db);
- }
- if (s->tmpbuff && (db->type == CS_TYPE_ADC)) {
- // Undo prog_dmabuf()'s marking the pages as reserved
- mapend =
- virt_to_page(s->tmpbuff +
- (PAGE_SIZE << s->buforder_tmpbuff) - 1);
- for (map = virt_to_page(s->tmpbuff); map <= mapend; map++)
- ClearPageReserved(map);
- free_dmabuf2(s, db);
- }
- s->tmpbuff = NULL;
- db->rawbuf = NULL;
- db->mapped = db->ready = 0;
-}
-
-static int prog_dmabuf(struct cs4281_state *s, struct dmabuf *db)
-{
- int order;
- unsigned bytespersec, temp1;
- unsigned bufs, sample_shift = 0;
- struct page *map, *mapend;
- unsigned long df;
-
- CS_DBGOUT(CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: prog_dmabuf()+\n"));
- db->hwptr = db->swptr = db->total_bytes = db->count = db->error =
- db->endcleared = db->blocks = db->wakeup = db->underrun = 0;
-/*
-* check for order within limits, but do not overwrite value, check
-* later for a fractional defaultorder (i.e. 100+).
-*/
- if((defaultorder > 0) && (defaultorder < 12))
- df = defaultorder;
- else
- df = 1;
-
- if (!db->rawbuf) {
- db->ready = db->mapped = 0;
- for (order = df; order >= DMABUF_MINORDER; order--)
- if ( (db->rawbuf = (void *) pci_alloc_consistent(
- s->pcidev, PAGE_SIZE << order, &db-> dmaaddr)))
- break;
- if (!db->rawbuf) {
- CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
- "cs4281: prog_dmabuf(): unable to allocate rawbuf\n"));
- return -ENOMEM;
- }
- db->buforder = order;
- // Now mark the pages as reserved; otherwise the
- // remap_pfn_range() in cs4281_mmap doesn't work.
- // 1. get index to last page in mem_map array for rawbuf.
- mapend = virt_to_page(db->rawbuf +
- (PAGE_SIZE << db->buforder) - 1);
-
- // 2. mark each physical page in range as 'reserved'.
- for (map = virt_to_page(db->rawbuf); map <= mapend; map++)
- SetPageReserved(map);
- }
- if (!s->tmpbuff && (db->type == CS_TYPE_ADC)) {
- for (order = df; order >= DMABUF_MINORDER;
- order--)
- if ( (s->tmpbuff = (void *) pci_alloc_consistent(
- s->pcidev, PAGE_SIZE << order,
- &s->dmaaddr_tmpbuff)))
- break;
- if (!s->tmpbuff) {
- CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
- "cs4281: prog_dmabuf(): unable to allocate tmpbuff\n"));
- return -ENOMEM;
- }
- s->buforder_tmpbuff = order;
- // Now mark the pages as reserved; otherwise the
- // remap_pfn_range() in cs4281_mmap doesn't work.
- // 1. get index to last page in mem_map array for rawbuf.
- mapend = virt_to_page(s->tmpbuff +
- (PAGE_SIZE << s->buforder_tmpbuff) - 1);
-
- // 2. mark each physical page in range as 'reserved'.
- for (map = virt_to_page(s->tmpbuff); map <= mapend; map++)
- SetPageReserved(map);
- }
- if (db->type == CS_TYPE_DAC) {
- if (s->prop_dac.fmt & (AFMT_S16_LE | AFMT_U16_LE))
- sample_shift++;
- if (s->prop_dac.channels > 1)
- sample_shift++;
- bytespersec = s->prop_dac.rate << sample_shift;
- } else // CS_TYPE_ADC
- {
- if (s->prop_adc.fmt & (AFMT_S16_LE | AFMT_U16_LE))
- sample_shift++;
- if (s->prop_adc.channels > 1)
- sample_shift++;
- bytespersec = s->prop_adc.rate << sample_shift;
- }
- bufs = PAGE_SIZE << db->buforder;
-
-/*
-* added fractional "defaultorder" inputs. if >100 then use
-* defaultorder-100 as power of 2 for the buffer size. example:
-* 106 = 2^(106-100) = 2^6 = 64 bytes for the buffer size.
-*/
- if(defaultorder >= 100)
- {
- bufs = 1 << (defaultorder-100);
- }
-
-#define INTERRUPT_RATE_MS 100 // Interrupt rate in milliseconds.
- db->numfrag = 2;
-/*
-* Nominal frag size(bytes/interrupt)
-*/
- temp1 = bytespersec / (1000 / INTERRUPT_RATE_MS);
- db->fragshift = 8; // Min 256 bytes.
- while (1 << db->fragshift < temp1) // Calc power of 2 frag size.
- db->fragshift += 1;
- db->fragsize = 1 << db->fragshift;
- db->dmasize = db->fragsize * 2;
- db->fragsamples = db->fragsize >> sample_shift; // # samples/fragment.
-
-// If the calculated size is larger than the allocated
-// buffer, divide the allocated buffer into 2 fragments.
- if (db->dmasize > bufs) {
-
- db->numfrag = 2; // Two fragments.
- db->fragsize = bufs >> 1; // Each 1/2 the alloc'ed buffer.
- db->fragsamples = db->fragsize >> sample_shift; // # samples/fragment.
- db->dmasize = bufs; // Use all the alloc'ed buffer.
-
- db->fragshift = 0; // Calculate 'fragshift'.
- temp1 = db->fragsize; // update_ptr() uses it
- while ((temp1 >>= 1) > 1) // to calc 'total-bytes'
- db->fragshift += 1; // returned in DSP_GETI/OPTR.
- }
- CS_DBGOUT(CS_PARMS, 3, printk(KERN_INFO
- "cs4281: prog_dmabuf(): numfrag=%d fragsize=%d fragsamples=%d fragshift=%d bufs=%d fmt=0x%x ch=%d\n",
- db->numfrag, db->fragsize, db->fragsamples,
- db->fragshift, bufs,
- (db->type == CS_TYPE_DAC) ? s->prop_dac.fmt :
- s->prop_adc.fmt,
- (db->type == CS_TYPE_DAC) ? s->prop_dac.channels :
- s->prop_adc.channels));
- CS_DBGOUT(CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: prog_dmabuf()-\n"));
- return 0;
-}
-
-
-static int prog_dmabuf_adc(struct cs4281_state *s)
-{
- unsigned long va;
- unsigned count;
- int c;
- stop_adc(s);
- s->dma_adc.type = CS_TYPE_ADC;
- if ((c = prog_dmabuf(s, &s->dma_adc)))
- return c;
-
- if (s->dma_adc.rawbuf) {
- memset(s->dma_adc.rawbuf,
- (s->prop_adc.
- fmt & (AFMT_U8 | AFMT_U16_LE)) ? 0x80 : 0,
- s->dma_adc.dmasize);
- }
- if (s->tmpbuff) {
- memset(s->tmpbuff,
- (s->prop_adc.
- fmt & (AFMT_U8 | AFMT_U16_LE)) ? 0x80 : 0,
- PAGE_SIZE << s->buforder_tmpbuff);
- }
-
- va = virt_to_bus(s->dma_adc.rawbuf);
-
- count = s->dma_adc.dmasize;
-
- if (s->prop_adc.
- fmt & (AFMT_S16_LE | AFMT_U16_LE | AFMT_S16_BE | AFMT_U16_BE))
- count /= 2; // 16-bit.
-
- if (s->prop_adc.channels > 1)
- count /= 2; // Assume stereo.
-
- CS_DBGOUT(CS_WAVE_READ, 3, printk(KERN_INFO
- "cs4281: prog_dmabuf_adc(): count=%d va=0x%.8x\n",
- count, (unsigned) va));
-
- writel(va, s->pBA0 + BA0_DBA1); // Set buffer start address.
- writel(count - 1, s->pBA0 + BA0_DBC1); // Set count.
- s->dma_adc.ready = 1;
- return 0;
-}
-
-
-static int prog_dmabuf_dac(struct cs4281_state *s)
-{
- unsigned long va;
- unsigned count;
- int c;
- stop_dac(s);
- s->dma_dac.type = CS_TYPE_DAC;
- if ((c = prog_dmabuf(s, &s->dma_dac)))
- return c;
- memset(s->dma_dac.rawbuf,
- (s->prop_dac.fmt & (AFMT_U8 | AFMT_U16_LE)) ? 0x80 : 0,
- s->dma_dac.dmasize);
-
- va = virt_to_bus(s->dma_dac.rawbuf);
-
- count = s->dma_dac.dmasize;
- if (s->prop_dac.
- fmt & (AFMT_S16_LE | AFMT_U16_LE | AFMT_S16_BE | AFMT_U16_BE))
- count /= 2; // 16-bit.
-
- if (s->prop_dac.channels > 1)
- count /= 2; // Assume stereo.
-
- writel(va, s->pBA0 + BA0_DBA0); // Set buffer start address.
- writel(count - 1, s->pBA0 + BA0_DBC0); // Set count.
-
- CS_DBGOUT(CS_WAVE_WRITE, 3, printk(KERN_INFO
- "cs4281: prog_dmabuf_dac(): count=%d va=0x%.8x\n",
- count, (unsigned) va));
-
- s->dma_dac.ready = 1;
- return 0;
-}
-
-
-static void clear_advance(void *buf, unsigned bsize, unsigned bptr,
- unsigned len, unsigned char c)
-{
- if (bptr + len > bsize) {
- unsigned x = bsize - bptr;
- memset(((char *) buf) + bptr, c, x);
- bptr = 0;
- len -= x;
- }
- CS_DBGOUT(CS_WAVE_WRITE, 4, printk(KERN_INFO
- "cs4281: clear_advance(): memset %d at %p for %d size \n",
- (unsigned)c, ((char *) buf) + bptr, len));
- memset(((char *) buf) + bptr, c, len);
-}
-
-
-
-// call with spinlock held!
-static void cs4281_update_ptr(struct cs4281_state *s, int intflag)
-{
- int diff;
- unsigned hwptr, va;
-
- // update ADC pointer
- if (s->ena & FMODE_READ) {
- hwptr = readl(s->pBA0 + BA0_DCA1); // Read capture DMA address.
- va = virt_to_bus(s->dma_adc.rawbuf);
- hwptr -= (unsigned) va;
- diff =
- (s->dma_adc.dmasize + hwptr -
- s->dma_adc.hwptr) % s->dma_adc.dmasize;
- s->dma_adc.hwptr = hwptr;
- s->dma_adc.total_bytes += diff;
- s->dma_adc.count += diff;
- if (s->dma_adc.count > s->dma_adc.dmasize)
- s->dma_adc.count = s->dma_adc.dmasize;
- if (s->dma_adc.mapped) {
- if (s->dma_adc.count >=
- (signed) s->dma_adc.fragsize) wake_up(&s->
- dma_adc.
- wait);
- } else {
- if (s->dma_adc.count > 0)
- wake_up(&s->dma_adc.wait);
- }
- CS_DBGOUT(CS_PARMS, 8, printk(KERN_INFO
- "cs4281: cs4281_update_ptr(): s=%p hwptr=%d total_bytes=%d count=%d \n",
- s, s->dma_adc.hwptr, s->dma_adc.total_bytes, s->dma_adc.count));
- }
- // update DAC pointer
- //
- // check for end of buffer, means that we are going to wait for another interrupt
- // to allow silence to fill the fifos on the part, to keep pops down to a minimum.
- //
- if (s->ena & FMODE_WRITE) {
- hwptr = readl(s->pBA0 + BA0_DCA0); // Read play DMA address.
- va = virt_to_bus(s->dma_dac.rawbuf);
- hwptr -= (unsigned) va;
- diff = (s->dma_dac.dmasize + hwptr -
- s->dma_dac.hwptr) % s->dma_dac.dmasize;
- s->dma_dac.hwptr = hwptr;
- s->dma_dac.total_bytes += diff;
- if (s->dma_dac.mapped) {
- s->dma_dac.count += diff;
- if (s->dma_dac.count >= s->dma_dac.fragsize) {
- s->dma_dac.wakeup = 1;
- wake_up(&s->dma_dac.wait);
- if (s->dma_dac.count > s->dma_dac.dmasize)
- s->dma_dac.count &=
- s->dma_dac.dmasize - 1;
- }
- } else {
- s->dma_dac.count -= diff;
- if (s->dma_dac.count <= 0) {
- //
- // fill with silence, and do not shut down the DAC.
- // Continue to play silence until the _release.
- //
- CS_DBGOUT(CS_WAVE_WRITE, 6, printk(KERN_INFO
- "cs4281: cs4281_update_ptr(): memset %d at %p for %d size \n",
- (unsigned)(s->prop_dac.fmt &
- (AFMT_U8 | AFMT_U16_LE)) ? 0x80 : 0,
- s->dma_dac.rawbuf, s->dma_dac.dmasize));
- memset(s->dma_dac.rawbuf,
- (s->prop_dac.
- fmt & (AFMT_U8 | AFMT_U16_LE)) ?
- 0x80 : 0, s->dma_dac.dmasize);
- if (s->dma_dac.count < 0) {
- s->dma_dac.underrun = 1;
- s->dma_dac.count = 0;
- CS_DBGOUT(CS_ERROR, 9, printk(KERN_INFO
- "cs4281: cs4281_update_ptr(): underrun\n"));
- }
- } else if (s->dma_dac.count <=
- (signed) s->dma_dac.fragsize
- && !s->dma_dac.endcleared) {
- clear_advance(s->dma_dac.rawbuf,
- s->dma_dac.dmasize,
- s->dma_dac.swptr,
- s->dma_dac.fragsize,
- (s->prop_dac.
- fmt & (AFMT_U8 |
- AFMT_U16_LE)) ? 0x80
- : 0);
- s->dma_dac.endcleared = 1;
- }
- if ( (s->dma_dac.count <= (signed) s->dma_dac.dmasize/2) ||
- intflag)
- {
- wake_up(&s->dma_dac.wait);
- }
- }
- CS_DBGOUT(CS_PARMS, 8, printk(KERN_INFO
- "cs4281: cs4281_update_ptr(): s=%p hwptr=%d total_bytes=%d count=%d \n",
- s, s->dma_dac.hwptr, s->dma_dac.total_bytes, s->dma_dac.count));
- }
-}
-
-
-// ---------------------------------------------------------------------
-
-static void prog_codec(struct cs4281_state *s, unsigned type)
-{
- unsigned long flags;
- unsigned temp1, format;
-
- CS_DBGOUT(CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: prog_codec()+ \n"));
-
- spin_lock_irqsave(&s->lock, flags);
- if (type == CS_TYPE_ADC) {
- temp1 = readl(s->pBA0 + BA0_DCR1);
- writel(temp1 | DCRn_MSK, s->pBA0 + BA0_DCR1); // Stop capture DMA, if active.
-
- // program sampling rates
- // Note, for CS4281, capture & play rates can be set independently.
- cs4281_record_rate(s, s->prop_adc.rate);
-
- // program ADC parameters
- format = DMRn_DMA | DMRn_AUTO | DMRn_TR_WRITE;
- if (s->prop_adc.
- fmt & (AFMT_S16_LE | AFMT_U16_LE | AFMT_S16_BE | AFMT_U16_BE)) { // 16-bit
- if (s->prop_adc.fmt & (AFMT_S16_BE | AFMT_U16_BE)) // Big-endian?
- format |= DMRn_BEND;
- if (s->prop_adc.fmt & (AFMT_U16_LE | AFMT_U16_BE))
- format |= DMRn_USIGN; // Unsigned.
- } else
- format |= DMRn_SIZE8 | DMRn_USIGN; // 8-bit, unsigned
- if (s->prop_adc.channels < 2)
- format |= DMRn_MONO;
-
- writel(format, s->pBA0 + BA0_DMR1);
-
- CS_DBGOUT(CS_PARMS, 2, printk(KERN_INFO
- "cs4281: prog_codec(): adc %s %s %s rate=%d DMR0 format=0x%.8x\n",
- (format & DMRn_SIZE8) ? "8" : "16",
- (format & DMRn_USIGN) ? "Unsigned" : "Signed",
- (format & DMRn_MONO) ? "Mono" : "Stereo",
- s->prop_adc.rate, format));
-
- s->ena &= ~FMODE_READ; // not capturing data yet
- }
-
-
- if (type == CS_TYPE_DAC) {
- temp1 = readl(s->pBA0 + BA0_DCR0);
- writel(temp1 | DCRn_MSK, s->pBA0 + BA0_DCR0); // Stop play DMA, if active.
-
- // program sampling rates
- // Note, for CS4281, capture & play rates can be set independently.
- cs4281_play_rate(s, s->prop_dac.rate);
-
- // program DAC parameters
- format = DMRn_DMA | DMRn_AUTO | DMRn_TR_READ;
- if (s->prop_dac.
- fmt & (AFMT_S16_LE | AFMT_U16_LE | AFMT_S16_BE | AFMT_U16_BE)) { // 16-bit
- if (s->prop_dac.fmt & (AFMT_S16_BE | AFMT_U16_BE))
- format |= DMRn_BEND; // Big Endian.
- if (s->prop_dac.fmt & (AFMT_U16_LE | AFMT_U16_BE))
- format |= DMRn_USIGN; // Unsigned.
- } else
- format |= DMRn_SIZE8 | DMRn_USIGN; // 8-bit, unsigned
-
- if (s->prop_dac.channels < 2)
- format |= DMRn_MONO;
-
- writel(format, s->pBA0 + BA0_DMR0);
-
-
- CS_DBGOUT(CS_PARMS, 2, printk(KERN_INFO
- "cs4281: prog_codec(): dac %s %s %s rate=%d DMR0 format=0x%.8x\n",
- (format & DMRn_SIZE8) ? "8" : "16",
- (format & DMRn_USIGN) ? "Unsigned" : "Signed",
- (format & DMRn_MONO) ? "Mono" : "Stereo",
- s->prop_dac.rate, format));
-
- s->ena &= ~FMODE_WRITE; // not capturing data yet
-
- }
- spin_unlock_irqrestore(&s->lock, flags);
- CS_DBGOUT(CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: prog_codec()- \n"));
-}
-
-
-static int mixer_ioctl(struct cs4281_state *s, unsigned int cmd,
- unsigned long arg)
-{
- // Index to mixer_src[] is value of AC97 Input Mux Select Reg.
- // Value of array member is recording source Device ID Mask.
- static const unsigned int mixer_src[8] = {
- SOUND_MASK_MIC, SOUND_MASK_CD, 0, SOUND_MASK_LINE1,
- SOUND_MASK_LINE, SOUND_MASK_VOLUME, 0, 0
- };
- void __user *argp = (void __user *)arg;
-
- // 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
- };
-
-
- static const unsigned mixreg[] = {
- BA0_AC97_PCM_OUT_VOLUME,
- BA0_AC97_AUX_VOLUME,
- BA0_AC97_CD_VOLUME,
- BA0_AC97_LINE_IN_VOLUME
- };
- unsigned char l, r, rl, rr, vidx;
- unsigned char attentbl[11] =
- { 63, 42, 26, 17, 14, 11, 8, 6, 4, 2, 0 };
- unsigned temp1;
- int i, val;
-
- VALIDATE_STATE(s);
- CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO
- "cs4281: mixer_ioctl(): s=%p cmd=0x%.8x\n", s, cmd));
-#if CSDEBUG
- cs_printioctl(cmd);
-#endif
-#if CSDEBUG_INTERFACE
-
- 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,
- (unsigned long __user *) argp);
-
- case SOUND_MIXER_CS_GETDBGLEVEL:
- return put_user(cs_debuglevel,
- (unsigned long __user *) argp);
-
- case SOUND_MIXER_CS_SETDBGMASK:
- if (get_user(val, (unsigned long __user *) argp))
- return -EFAULT;
- cs_debugmask = val;
- return 0;
-
- case SOUND_MIXER_CS_SETDBGLEVEL:
- if (get_user(val, (unsigned long __user *) argp))
- return -EFAULT;
- cs_debuglevel = val;
- return 0;
-#ifndef NOT_CS4281_PM
- case SOUND_MIXER_CS_APM:
- if (get_user(val, (unsigned long __user *) argp))
- return -EFAULT;
- if(val == CS_IOCTL_CMD_SUSPEND)
- cs4281_suspend(s);
- else if(val == CS_IOCTL_CMD_RESUME)
- cs4281_resume(s);
- else
- {
- CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
- "cs4281: mixer_ioctl(): invalid APM cmd (%d)\n",
- val));
- }
- return 0;
-#endif
- default:
- CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
- "cs4281: mixer_ioctl(): ERROR unknown debug cmd\n"));
- return 0;
- }
- }
-#endif
-
- if (cmd == SOUND_MIXER_PRIVATE1) {
- // enable/disable/query mixer preamp
- if (get_user(val, (int __user *) argp))
- return -EFAULT;
- if (val != -1) {
- cs4281_read_ac97(s, BA0_AC97_MIC_VOLUME, &temp1);
- temp1 = val ? (temp1 | 0x40) : (temp1 & 0xffbf);
- cs4281_write_ac97(s, BA0_AC97_MIC_VOLUME, temp1);
- }
- cs4281_read_ac97(s, BA0_AC97_MIC_VOLUME, &temp1);
- val = (temp1 & 0x40) ? 1 : 0;
- return put_user(val, (int __user *) argp);
- }
- if (cmd == SOUND_MIXER_PRIVATE2) {
- // enable/disable/query spatializer
- if (get_user(val, (int __user *)argp))
- return -EFAULT;
- if (val != -1) {
- temp1 = (val & 0x3f) >> 2;
- cs4281_write_ac97(s, BA0_AC97_3D_CONTROL, temp1);
- cs4281_read_ac97(s, BA0_AC97_GENERAL_PURPOSE,
- &temp1);
- cs4281_write_ac97(s, BA0_AC97_GENERAL_PURPOSE,
- temp1 | 0x2000);
- }
- cs4281_read_ac97(s, BA0_AC97_3D_CONTROL, &temp1);
- return put_user((temp1 << 2) | 3, (int __user *)argp);
- }
- if (cmd == SOUND_MIXER_INFO) {
- mixer_info info;
- strlcpy(info.id, "CS4281", sizeof(info.id));
- strlcpy(info.name, "Crystal CS4281", sizeof(info.name));
- info.modify_counter = s->mix.modcnt;
- if (copy_to_user(argp, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
- if (cmd == SOUND_OLD_MIXER_INFO) {
- _old_mixer_info info;
- strlcpy(info.id, "CS4281", sizeof(info.id));
- strlcpy(info.name, "Crystal CS4281", sizeof(info.name));
- if (copy_to_user(argp, &info, sizeof(info)))
- return -EFAULT;
- return 0;
- }
- if (cmd == OSS_GETVERSION)
- return put_user(SOUND_VERSION, (int __user *) argp);
-
- if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int))
- return -EINVAL;
-
- // If ioctl has only the SIOC_READ bit(bit 31)
- // on, process the only-read commands.
- if (_SIOC_DIR(cmd) == _SIOC_READ) {
- switch (_IOC_NR(cmd)) {
- case SOUND_MIXER_RECSRC: // Arg contains a bit for each recording source
- cs4281_read_ac97(s, BA0_AC97_RECORD_SELECT, &temp1);
- return put_user(mixer_src[temp1&7], (int __user *)argp);
-
- case SOUND_MIXER_DEVMASK: // Arg contains a bit for each supported device
- return put_user(SOUND_MASK_PCM | SOUND_MASK_SYNTH |
- SOUND_MASK_CD | SOUND_MASK_LINE |
- SOUND_MASK_LINE1 | SOUND_MASK_MIC |
- SOUND_MASK_VOLUME |
- SOUND_MASK_RECLEV |
- SOUND_MASK_SPEAKER, (int __user *)argp);
-
- case SOUND_MIXER_RECMASK: // Arg contains a bit for each supported recording source
- return put_user(SOUND_MASK_LINE | SOUND_MASK_MIC |
- SOUND_MASK_CD | SOUND_MASK_VOLUME |
- SOUND_MASK_LINE1, (int __user *) argp);
-
- case SOUND_MIXER_STEREODEVS: // Mixer channels supporting stereo
- return put_user(SOUND_MASK_PCM | SOUND_MASK_SYNTH |
- SOUND_MASK_CD | SOUND_MASK_LINE |
- SOUND_MASK_LINE1 | SOUND_MASK_MIC |
- SOUND_MASK_VOLUME |
- SOUND_MASK_RECLEV, (int __user *)argp);
-
- case SOUND_MIXER_CAPS:
- return put_user(SOUND_CAP_EXCL_INPUT, (int __user *)argp);
-
- default:
- i = _IOC_NR(cmd);
- if (i >= SOUND_MIXER_NRDEVICES
- || !(vidx = mixtable1[i]))
- return -EINVAL;
- return put_user(s->mix.vol[vidx - 1], (int __user *)argp);
- }
- }
- // If ioctl doesn't have both the SIOC_READ and
- // the SIOC_WRITE bit set, return invalid.
- if (_SIOC_DIR(cmd) != (_SIOC_READ | _SIOC_WRITE))
- return -EINVAL;
-
- // Increment the count of volume writes.
- s->mix.modcnt++;
-
- // Isolate the command; it must be a write.
- switch (_IOC_NR(cmd)) {
-
- case SOUND_MIXER_RECSRC: // Arg contains a bit for each recording source
- if (get_user(val, (int __user *)argp))
- return -EFAULT;
- i = hweight32(val); // i = # bits on in val.
- if (i != 1) // One & only 1 bit must be on.
- return 0;
- for (i = 0; i < sizeof(mixer_src) / sizeof(int); i++) {
- if (val == mixer_src[i]) {
- temp1 = (i << 8) | i;
- cs4281_write_ac97(s,
- BA0_AC97_RECORD_SELECT,
- temp1);
- return 0;
- }
- }
- return 0;
-
- case SOUND_MIXER_VOLUME:
- if (get_user(val, (int __user *)argp))
- return -EFAULT;
- l = val & 0xff;
- if (l > 100)
- l = 100; // Max soundcard.h vol is 100.
- if (l < 6) {
- rl = 63;
- l = 0;
- } else
- rl = attentbl[(10 * l) / 100]; // Convert 0-100 vol to 63-0 atten.
-
- r = (val >> 8) & 0xff;
- if (r > 100)
- r = 100; // Max right volume is 100, too
- if (r < 6) {
- rr = 63;
- r = 0;
- } else
- rr = attentbl[(10 * r) / 100]; // Convert volume to attenuation.
-
- if ((rl > 60) && (rr > 60)) // If both l & r are 'low',
- temp1 = 0x8000; // turn on the mute bit.
- else
- temp1 = 0;
-
- temp1 |= (rl << 8) | rr;
-
- cs4281_write_ac97(s, BA0_AC97_MASTER_VOLUME, temp1);
- cs4281_write_ac97(s, BA0_AC97_HEADPHONE_VOLUME, temp1);
-
-#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
- s->mix.vol[8] = ((unsigned int) r << 8) | l;
-#else
- s->mix.vol[8] = val;
-#endif
- return put_user(s->mix.vol[8], (int __user *)argp);
-
- case SOUND_MIXER_SPEAKER:
- if (get_user(val, (int __user *)argp))
- return -EFAULT;
- l = val & 0xff;
- if (l > 100)
- l = 100;
- if (l < 3) {
- rl = 0;
- l = 0;
- } else {
- rl = (l * 2 - 5) / 13; // Convert 0-100 range to 0-15.
- l = (rl * 13 + 5) / 2;
- }
-
- if (rl < 3) {
- temp1 = 0x8000;
- rl = 0;
- } else
- temp1 = 0;
- rl = 15 - rl; // Convert volume to attenuation.
- temp1 |= rl << 1;
- cs4281_write_ac97(s, BA0_AC97_PC_BEEP_VOLUME, temp1);
-
-#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
- s->mix.vol[6] = l << 8;
-#else
- s->mix.vol[6] = val;
-#endif
- return put_user(s->mix.vol[6], (int __user *)argp);
-
- case SOUND_MIXER_RECLEV:
- if (get_user(val, (int __user *)argp))
- return -EFAULT;
- l = val & 0xff;
- if (l > 100)
- l = 100;
- r = (val >> 8) & 0xff;
- if (r > 100)
- r = 100;
- rl = (l * 2 - 5) / 13; // Convert 0-100 scale to 0-15.
- rr = (r * 2 - 5) / 13;
- if (rl < 3 && rr < 3)
- temp1 = 0x8000;
- else
- temp1 = 0;
-
- temp1 = temp1 | (rl << 8) | rr;
- cs4281_write_ac97(s, BA0_AC97_RECORD_GAIN, temp1);
-
-#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
- s->mix.vol[7] = ((unsigned int) r << 8) | l;
-#else
- s->mix.vol[7] = val;
-#endif
- return put_user(s->mix.vol[7], (int __user *)argp);
-
- case SOUND_MIXER_MIC:
- if (get_user(val, (int __user *)argp))
- return -EFAULT;
- l = val & 0xff;
- if (l > 100)
- l = 100;
- if (l < 1) {
- l = 0;
- rl = 0;
- } else {
- rl = ((unsigned) l * 5 - 4) / 16; // Convert 0-100 range to 0-31.
- l = (rl * 16 + 4) / 5;
- }
- cs4281_read_ac97(s, BA0_AC97_MIC_VOLUME, &temp1);
- temp1 &= 0x40; // Isolate 20db gain bit.
- if (rl < 3) {
- temp1 |= 0x8000;
- rl = 0;
- }
- rl = 31 - rl; // Convert volume to attenuation.
- temp1 |= rl;
- cs4281_write_ac97(s, BA0_AC97_MIC_VOLUME, temp1);
-
-#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
- s->mix.vol[5] = val << 8;
-#else
- s->mix.vol[5] = val;
-#endif
- return put_user(s->mix.vol[5], (int __user *)argp);
-
-
- case SOUND_MIXER_SYNTH:
- if (get_user(val, (int __user *)argp))
- return -EFAULT;
- l = val & 0xff;
- if (l > 100)
- l = 100;
- if (get_user(val, (int __user *)argp))
- return -EFAULT;
- r = (val >> 8) & 0xff;
- if (r > 100)
- r = 100;
- rl = (l * 2 - 11) / 3; // Convert 0-100 range to 0-63.
- rr = (r * 2 - 11) / 3;
- if (rl < 3) // If l is low, turn on
- temp1 = 0x0080; // the mute bit.
- else
- temp1 = 0;
-
- rl = 63 - rl; // Convert vol to attenuation.
- writel(temp1 | rl, s->pBA0 + BA0_FMLVC);
- if (rr < 3) // If rr is low, turn on
- temp1 = 0x0080; // the mute bit.
- else
- temp1 = 0;
- rr = 63 - rr; // Convert vol to attenuation.
- writel(temp1 | rr, s->pBA0 + BA0_FMRVC);
-
-#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
- s->mix.vol[4] = (r << 8) | l;
-#else
- s->mix.vol[4] = val;
-#endif
- return put_user(s->mix.vol[4], (int __user *)argp);
-
-
- default:
- CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO
- "cs4281: mixer_ioctl(): default\n"));
-
- i = _IOC_NR(cmd);
- if (i >= SOUND_MIXER_NRDEVICES || !(vidx = mixtable1[i]))
- return -EINVAL;
- if (get_user(val, (int __user *)argp))
- return -EFAULT;
- l = val & 0xff;
- if (l > 100)
- l = 100;
- if (l < 1) {
- l = 0;
- rl = 31;
- } else
- rl = (attentbl[(l * 10) / 100]) >> 1;
-
- r = (val >> 8) & 0xff;
- if (r > 100)
- r = 100;
- if (r < 1) {
- r = 0;
- rr = 31;
- } else
- rr = (attentbl[(r * 10) / 100]) >> 1;
- if ((rl > 30) && (rr > 30))
- temp1 = 0x8000;
- else
- temp1 = 0;
- temp1 = temp1 | (rl << 8) | rr;
- cs4281_write_ac97(s, mixreg[vidx - 1], temp1);
-
-#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
- s->mix.vol[vidx - 1] = ((unsigned int) r << 8) | l;
-#else
- s->mix.vol[vidx - 1] = val;
-#endif
-#ifndef NOT_CS4281_PM
- CS_DBGOUT(CS_PM, 9, printk(KERN_INFO
- "write ac97 mixreg[%d]=0x%x mix.vol[]=0x%x\n",
- vidx-1,temp1,s->mix.vol[vidx-1]));
-#endif
- return put_user(s->mix.vol[vidx - 1], (int __user *)argp);
- }
-}
-
-
-// ---------------------------------------------------------------------
-
-static int cs4281_open_mixdev(struct inode *inode, struct file *file)
-{
- unsigned int minor = iminor(inode);
- struct cs4281_state *s=NULL;
- struct list_head *entry;
-
- CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4,
- printk(KERN_INFO "cs4281: cs4281_open_mixdev()+\n"));
-
- list_for_each(entry, &cs4281_devs)
- {
- s = list_entry(entry, struct cs4281_state, list);
- if(s->dev_mixer == minor)
- break;
- }
- if (!s)
- {
- CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2,
- printk(KERN_INFO "cs4281: cs4281_open_mixdev()- -ENODEV\n"));
- return -ENODEV;
- }
- VALIDATE_STATE(s);
- file->private_data = s;
-
- CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4,
- printk(KERN_INFO "cs4281: cs4281_open_mixdev()- 0\n"));
-
- return nonseekable_open(inode, file);
-}
-
-
-static int cs4281_release_mixdev(struct inode *inode, struct file *file)
-{
- struct cs4281_state *s =
- (struct cs4281_state *) file->private_data;
-
- VALIDATE_STATE(s);
- return 0;
-}
-
-
-static int cs4281_ioctl_mixdev(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- return mixer_ioctl((struct cs4281_state *) file->private_data, cmd,
- arg);
-}
-
-
-// ******************************************************************************************
-// Mixer file operations struct.
-// ******************************************************************************************
-static /*const */ struct file_operations cs4281_mixer_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .ioctl = cs4281_ioctl_mixdev,
- .open = cs4281_open_mixdev,
- .release = cs4281_release_mixdev,
-};
-
-// ---------------------------------------------------------------------
-
-
-static int drain_adc(struct cs4281_state *s, int nonblock)
-{
- DECLARE_WAITQUEUE(wait, current);
- unsigned long flags;
- int count;
- unsigned tmo;
-
- if (s->dma_adc.mapped)
- return 0;
- add_wait_queue(&s->dma_adc.wait, &wait);
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- spin_lock_irqsave(&s->lock, flags);
- count = s->dma_adc.count;
- CS_DBGOUT(CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: drain_adc() %d\n", count));
- spin_unlock_irqrestore(&s->lock, flags);
- if (count <= 0) {
- CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO
- "cs4281: drain_adc() count<0\n"));
- break;
- }
- if (signal_pending(current))
- break;
- if (nonblock) {
- remove_wait_queue(&s->dma_adc.wait, &wait);
- current->state = TASK_RUNNING;
- return -EBUSY;
- }
- tmo =
- 3 * HZ * (count +
- s->dma_adc.fragsize) / 2 / s->prop_adc.rate;
- if (s->prop_adc.fmt & (AFMT_S16_LE | AFMT_U16_LE))
- tmo >>= 1;
- if (s->prop_adc.channels > 1)
- tmo >>= 1;
- if (!schedule_timeout(tmo + 1))
- printk(KERN_DEBUG "cs4281: dma timed out??\n");
- }
- remove_wait_queue(&s->dma_adc.wait, &wait);
- current->state = TASK_RUNNING;
- if (signal_pending(current))
- return -ERESTARTSYS;
- return 0;
-}
-
-static int drain_dac(struct cs4281_state *s, int nonblock)
-{
- DECLARE_WAITQUEUE(wait, current);
- unsigned long flags;
- int count;
- unsigned tmo;
-
- if (s->dma_dac.mapped)
- return 0;
- add_wait_queue(&s->dma_dac.wait, &wait);
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- spin_lock_irqsave(&s->lock, flags);
- count = s->dma_dac.count;
- spin_unlock_irqrestore(&s->lock, flags);
- if (count <= 0)
- break;
- if (signal_pending(current))
- break;
- if (nonblock) {
- remove_wait_queue(&s->dma_dac.wait, &wait);
- current->state = TASK_RUNNING;
- return -EBUSY;
- }
- tmo =
- 3 * HZ * (count +
- s->dma_dac.fragsize) / 2 / s->prop_dac.rate;
- if (s->prop_dac.fmt & (AFMT_S16_LE | AFMT_U16_LE))
- tmo >>= 1;
- if (s->prop_dac.channels > 1)
- tmo >>= 1;
- if (!schedule_timeout(tmo + 1))
- printk(KERN_DEBUG "cs4281: dma timed out??\n");
- }
- remove_wait_queue(&s->dma_dac.wait, &wait);
- current->state = TASK_RUNNING;
- if (signal_pending(current))
- return -ERESTARTSYS;
- return 0;
-}
-
-//****************************************************************************
-//
-// CopySamples copies 16-bit stereo samples from the source to the
-// destination, possibly converting down to either 8-bit or mono or both.
-// 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.
-// iChannels - Stereo - 2
-// Mono - 1
-// fmt - AFMT_xxx (soundcard.h formats)
-//
-// NOTES: only call this routine for conversion to 8bit from 16bit
-//
-//****************************************************************************
-static void CopySamples(char *dst, char *src, int count, int iChannels,
- unsigned fmt)
-{
-
- unsigned short *psSrc;
- long lAudioSample;
-
- CS_DBGOUT(CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: CopySamples()+ "));
- CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO
- " dst=%p src=%p count=%d iChannels=%d fmt=0x%x\n",
- dst, src, (unsigned) count, (unsigned) iChannels, (unsigned) fmt));
-
- // Gershwin does format conversion in hardware so normally
- // we don't do any host based coversion. The data formatter
- // truncates 16 bit data to 8 bit and that causes some hiss.
- // We have already forced the HW to do 16 bit sampling and
- // 2 channel so that we can use software to round instead
- // of truncate
-
- //
- // See if the data should be output as 8-bit unsigned stereo.
- // or if the data should be output at 8-bit unsigned mono.
- //
- if ( ((iChannels == 2) && (fmt & AFMT_U8)) ||
- ((iChannels == 1) && (fmt & AFMT_U8)) ) {
- //
- // Convert each 16-bit unsigned stereo sample to 8-bit unsigned
- // stereo using rounding.
- //
- psSrc = (unsigned short *) src;
- count = count / 2;
- while (count--) {
- lAudioSample = (long) psSrc[count] + (long) 0x80;
- if (lAudioSample > 0xffff) {
- lAudioSample = 0xffff;
- }
- dst[count] = (char) (lAudioSample >> 8);
- }
- }
- //
- // check for 8-bit signed stereo.
- //
- else if ((iChannels == 2) && (fmt & AFMT_S8)) {
- //
- // Convert each 16-bit stereo sample to 8-bit stereo using rounding.
- //
- psSrc = (short *) src;
- while (count--) {
- lAudioSample =
- (((long) psSrc[0] + (long) psSrc[1]) / 2);
- psSrc += 2;
- *dst++ = (char) ((short) lAudioSample >> 8);
- }
- }
- //
- // Otherwise, the data should be output as 8-bit signed mono.
- //
- else if ((iChannels == 1) && (fmt & AFMT_S8)) {
- //
- // Convert each 16-bit signed mono sample to 8-bit signed mono
- // using rounding.
- //
- psSrc = (short *) src;
- count = count / 2;
- while (count--) {
- lAudioSample =
- (((long) psSrc[0] + (long) psSrc[1]) / 2);
- if (lAudioSample > 0x7fff) {
- lAudioSample = 0x7fff;
- }
- psSrc += 2;
- *dst++ = (char) ((short) lAudioSample >> 8);
- }
- }
-}
-
-//
-// cs_copy_to_user()
-// replacement for the standard copy_to_user, to allow for a conversion from
-// 16 bit to 8 bit if the record conversion is active. the cs4281 has some
-// issues with 8 bit capture, so the driver always captures data in 16 bit
-// and then if the user requested 8 bit, converts from 16 to 8 bit.
-//
-static unsigned cs_copy_to_user(struct cs4281_state *s, void __user *dest,
- unsigned *hwsrc, unsigned cnt,
- unsigned *copied)
-{
- 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 fmt_o=0x%x cnt=%d dest=%p\n",
- s->prop_adc.fmt, s->prop_adc.fmt_original,
- (unsigned) cnt, dest));
-
- if (cnt > s->dma_adc.dmasize) {
- cnt = s->dma_adc.dmasize;
- }
- if (!cnt) {
- *copied = 0;
- return 0;
- }
- if (s->conversion) {
- if (!s->tmpbuff) {
- *copied = cnt / 2;
- return 0;
- }
- CopySamples(s->tmpbuff, (void *) hwsrc, cnt,
- (unsigned) s->prop_adc.channels,
- s->prop_adc.fmt_original);
- src = s->tmpbuff;
- cnt = cnt / 2;
- }
-
- if (copy_to_user(dest, src, cnt)) {
- *copied = 0;
- return -EFAULT;
- }
- *copied = cnt;
- CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO
- "cs4281: cs_copy_to_user()- copied bytes is %d \n", cnt));
- return 0;
-}
-
-// ---------------------------------------------------------------------
-
-static ssize_t cs4281_read(struct file *file, char __user *buffer, size_t count,
- loff_t * ppos)
-{
- struct cs4281_state *s =
- (struct cs4281_state *) file->private_data;
- ssize_t ret;
- unsigned long flags;
- unsigned swptr;
- int cnt;
- unsigned copied = 0;
-
- CS_DBGOUT(CS_FUNCTION | CS_WAVE_READ, 2,
- printk(KERN_INFO "cs4281: cs4281_read()+ %Zu \n", count));
-
- VALIDATE_STATE(s);
- if (s->dma_adc.mapped)
- return -ENXIO;
- if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
- return ret;
- if (!access_ok(VERIFY_WRITE, buffer, count))
- return -EFAULT;
- ret = 0;
-//
-// "count" is the amount of bytes to read (from app), is decremented each loop
-// by the amount of bytes that have been returned to the user buffer.
-// "cnt" is the running total of each read from the buffer (changes each loop)
-// "buffer" points to the app's buffer
-// "ret" keeps a running total of the amount of bytes that have been copied
-// to the user buffer.
-// "copied" is the total bytes copied into the user buffer for each loop.
-//
- while (count > 0) {
- CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO
- "_read() count>0 count=%Zu .count=%d .swptr=%d .hwptr=%d \n",
- count, s->dma_adc.count,
- s->dma_adc.swptr, s->dma_adc.hwptr));
- spin_lock_irqsave(&s->lock, flags);
-
- // get the current copy point of the sw buffer
- swptr = s->dma_adc.swptr;
-
- // cnt is the amount of unread bytes from the end of the
- // hw buffer to the current sw pointer
- cnt = s->dma_adc.dmasize - swptr;
-
- // dma_adc.count is the current total bytes that have not been read.
- // if the amount of unread bytes from the current sw pointer to the
- // end of the buffer is greater than the current total bytes that
- // have not been read, then set the "cnt" (unread bytes) to the
- // amount of unread bytes.
-
- if (s->dma_adc.count < cnt)
- cnt = s->dma_adc.count;
- spin_unlock_irqrestore(&s->lock, flags);
- //
- // if we are converting from 8/16 then we need to copy
- // twice the number of 16 bit bytes then 8 bit bytes.
- //
- if (s->conversion) {
- if (cnt > (count * 2))
- cnt = (count * 2);
- } else {
- if (cnt > count)
- cnt = count;
- }
- //
- // "cnt" NOW is the smaller of the amount that will be read,
- // and the amount that is requested in this read (or partial).
- // if there are no bytes in the buffer to read, then start the
- // ADC and wait for the interrupt handler to wake us up.
- //
- if (cnt <= 0) {
-
- // start up the dma engine and then continue back to the top of
- // the loop when wake up occurs.
- start_adc(s);
- if (file->f_flags & O_NONBLOCK)
- return ret ? ret : -EAGAIN;
- interruptible_sleep_on(&s->dma_adc.wait);
- if (signal_pending(current))
- return ret ? ret : -ERESTARTSYS;
- continue;
- }
- // there are bytes in the buffer to read.
- // copy from the hw buffer over to the user buffer.
- // user buffer is designated by "buffer"
- // virtual address to copy from is rawbuf+swptr
- // the "cnt" is the number of bytes to read.
-
- CS_DBGOUT(CS_WAVE_READ, 2, printk(KERN_INFO
- "_read() copy_to cnt=%d count=%Zu ", cnt, count));
- CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO
- " .dmasize=%d .count=%d buffer=%p ret=%Zd\n",
- s->dma_adc.dmasize, s->dma_adc.count, buffer, ret));
-
- if (cs_copy_to_user
- (s, buffer, s->dma_adc.rawbuf + swptr, cnt, &copied))
- return ret ? ret : -EFAULT;
- swptr = (swptr + cnt) % s->dma_adc.dmasize;
- spin_lock_irqsave(&s->lock, flags);
- s->dma_adc.swptr = swptr;
- s->dma_adc.count -= cnt;
- spin_unlock_irqrestore(&s->lock, flags);
- count -= copied;
- buffer += copied;
- ret += copied;
- start_adc(s);
- }
- CS_DBGOUT(CS_FUNCTION | CS_WAVE_READ, 2,
- printk(KERN_INFO "cs4281: cs4281_read()- %Zd\n", ret));
- return ret;
-}
-
-
-static ssize_t cs4281_write(struct file *file, const char __user *buffer,
- size_t count, loff_t * ppos)
-{
- struct cs4281_state *s =
- (struct cs4281_state *) file->private_data;
- ssize_t ret;
- unsigned long flags;
- unsigned swptr, hwptr, busaddr;
- int cnt;
-
- CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE, 2,
- printk(KERN_INFO "cs4281: cs4281_write()+ count=%Zu\n",
- count));
- VALIDATE_STATE(s);
-
- if (s->dma_dac.mapped)
- return -ENXIO;
- if (!s->dma_dac.ready && (ret = prog_dmabuf_dac(s)))
- return ret;
- if (!access_ok(VERIFY_READ, buffer, count))
- return -EFAULT;
- ret = 0;
- while (count > 0) {
- spin_lock_irqsave(&s->lock, flags);
- if (s->dma_dac.count < 0) {
- s->dma_dac.count = 0;
- s->dma_dac.swptr = s->dma_dac.hwptr;
- }
- if (s->dma_dac.underrun) {
- s->dma_dac.underrun = 0;
- hwptr = readl(s->pBA0 + BA0_DCA0);
- busaddr = virt_to_bus(s->dma_dac.rawbuf);
- hwptr -= (unsigned) busaddr;
- s->dma_dac.swptr = s->dma_dac.hwptr = hwptr;
- }
- swptr = s->dma_dac.swptr;
- cnt = s->dma_dac.dmasize - swptr;
- if (s->dma_dac.count + cnt > s->dma_dac.dmasize)
- cnt = s->dma_dac.dmasize - s->dma_dac.count;
- spin_unlock_irqrestore(&s->lock, flags);
- if (cnt > count)
- cnt = count;
- if (cnt <= 0) {
- start_dac(s);
- if (file->f_flags & O_NONBLOCK)
- return ret ? ret : -EAGAIN;
- interruptible_sleep_on(&s->dma_dac.wait);
- if (signal_pending(current))
- return ret ? ret : -ERESTARTSYS;
- continue;
- }
- if (copy_from_user(s->dma_dac.rawbuf + swptr, buffer, cnt))
- return ret ? ret : -EFAULT;
- swptr = (swptr + cnt) % s->dma_dac.dmasize;
- spin_lock_irqsave(&s->lock, flags);
- s->dma_dac.swptr = swptr;
- s->dma_dac.count += cnt;
- s->dma_dac.endcleared = 0;
- spin_unlock_irqrestore(&s->lock, flags);
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- start_dac(s);
- }
- CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE, 2,
- printk(KERN_INFO "cs4281: cs4281_write()- %Zd\n", ret));
- return ret;
-}
-
-
-static unsigned int cs4281_poll(struct file *file,
- struct poll_table_struct *wait)
-{
- struct cs4281_state *s =
- (struct cs4281_state *) file->private_data;
- unsigned long flags;
- unsigned int mask = 0;
-
- CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4,
- printk(KERN_INFO "cs4281: cs4281_poll()+\n"));
- VALIDATE_STATE(s);
- if (file->f_mode & FMODE_WRITE) {
- CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4,
- printk(KERN_INFO
- "cs4281: cs4281_poll() wait on FMODE_WRITE\n"));
- if(!s->dma_dac.ready && prog_dmabuf_dac(s))
- return 0;
- poll_wait(file, &s->dma_dac.wait, wait);
- }
- if (file->f_mode & FMODE_READ) {
- CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4,
- printk(KERN_INFO
- "cs4281: cs4281_poll() wait on FMODE_READ\n"));
- if(!s->dma_dac.ready && prog_dmabuf_adc(s))
- return 0;
- poll_wait(file, &s->dma_adc.wait, wait);
- }
- spin_lock_irqsave(&s->lock, flags);
- cs4281_update_ptr(s,CS_FALSE);
- if (file->f_mode & FMODE_WRITE) {
- if (s->dma_dac.mapped) {
- if (s->dma_dac.count >=
- (signed) s->dma_dac.fragsize) {
- if (s->dma_dac.wakeup)
- mask |= POLLOUT | POLLWRNORM;
- else
- mask = 0;
- s->dma_dac.wakeup = 0;
- }
- } else {
- if ((signed) (s->dma_dac.dmasize/2) >= s->dma_dac.count)
- mask |= POLLOUT | POLLWRNORM;
- }
- } else if (file->f_mode & FMODE_READ) {
- if (s->dma_adc.mapped) {
- if (s->dma_adc.count >= (signed) s->dma_adc.fragsize)
- mask |= POLLIN | POLLRDNORM;
- } else {
- if (s->dma_adc.count > 0)
- mask |= POLLIN | POLLRDNORM;
- }
- }
- spin_unlock_irqrestore(&s->lock, flags);
- CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4,
- printk(KERN_INFO "cs4281: cs4281_poll()- 0x%.8x\n",
- mask));
- return mask;
-}
-
-
-static int cs4281_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct cs4281_state *s =
- (struct cs4281_state *) file->private_data;
- struct dmabuf *db;
- int ret;
- unsigned long size;
-
- CS_DBGOUT(CS_FUNCTION | CS_PARMS | CS_OPEN, 4,
- printk(KERN_INFO "cs4281: cs4281_mmap()+\n"));
-
- VALIDATE_STATE(s);
- if (vma->vm_flags & VM_WRITE) {
- if ((ret = prog_dmabuf_dac(s)) != 0)
- return ret;
- db = &s->dma_dac;
- } else if (vma->vm_flags & VM_READ) {
- if ((ret = prog_dmabuf_adc(s)) != 0)
- return ret;
- db = &s->dma_adc;
- } else
- return -EINVAL;
-//
-// only support PLAYBACK for now
-//
- db = &s->dma_dac;
-
- if (cs4x_pgoff(vma) != 0)
- return -EINVAL;
- size = vma->vm_end - vma->vm_start;
- if (size > (PAGE_SIZE << db->buforder))
- return -EINVAL;
- if (remap_pfn_range(vma, vma->vm_start,
- virt_to_phys(db->rawbuf) >> PAGE_SHIFT,
- size, vma->vm_page_prot))
- return -EAGAIN;
- db->mapped = 1;
-
- CS_DBGOUT(CS_FUNCTION | CS_PARMS | CS_OPEN, 4,
- printk(KERN_INFO "cs4281: cs4281_mmap()- 0 size=%d\n",
- (unsigned) size));
-
- return 0;
-}
-
-
-static int cs4281_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct cs4281_state *s =
- (struct cs4281_state *) file->private_data;
- unsigned long flags;
- audio_buf_info abinfo;
- count_info cinfo;
- int val, mapped, ret;
- int __user *p = (int __user *)arg;
-
- CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO
- "cs4281: cs4281_ioctl(): file=%p cmd=0x%.8x\n", file, cmd));
-#if CSDEBUG
- cs_printioctl(cmd);
-#endif
- VALIDATE_STATE(s);
- mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) ||
- ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
- switch (cmd) {
- case OSS_GETVERSION:
- CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO
- "cs4281: cs4281_ioctl(): SOUND_VERSION=0x%.8x\n",
- SOUND_VERSION));
- return put_user(SOUND_VERSION, p);
-
- case SNDCTL_DSP_SYNC:
- CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO
- "cs4281: cs4281_ioctl(): DSP_SYNC\n"));
- if (file->f_mode & FMODE_WRITE)
- return drain_dac(s,
- 0 /*file->f_flags & O_NONBLOCK */
- );
- return 0;
-
- case SNDCTL_DSP_SETDUPLEX:
- return 0;
-
- case SNDCTL_DSP_GETCAPS:
- return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME |
- DSP_CAP_TRIGGER | DSP_CAP_MMAP,
- p);
-
- case SNDCTL_DSP_RESET:
- CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO
- "cs4281: cs4281_ioctl(): DSP_RESET\n"));
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- synchronize_irq(s->irq);
- s->dma_dac.swptr = s->dma_dac.hwptr =
- s->dma_dac.count = s->dma_dac.total_bytes =
- s->dma_dac.blocks = s->dma_dac.wakeup = 0;
- prog_codec(s, CS_TYPE_DAC);
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- synchronize_irq(s->irq);
- s->dma_adc.swptr = s->dma_adc.hwptr =
- s->dma_adc.count = s->dma_adc.total_bytes =
- s->dma_adc.blocks = s->dma_dac.wakeup = 0;
- prog_codec(s, CS_TYPE_ADC);
- }
- return 0;
-
- case SNDCTL_DSP_SPEED:
- if (get_user(val, p))
- return -EFAULT;
- CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO
- "cs4281: cs4281_ioctl(): DSP_SPEED val=%d\n", val));
- //
- // support independent capture and playback channels
- // assume that the file mode bit determines the
- // direction of the data flow.
- //
- if (file->f_mode & FMODE_READ) {
- if (val >= 0) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- // program sampling rates
- if (val > 48000)
- val = 48000;
- if (val < 6300)
- val = 6300;
- s->prop_adc.rate = val;
- prog_codec(s, CS_TYPE_ADC);
- }
- }
- if (file->f_mode & FMODE_WRITE) {
- if (val >= 0) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- // program sampling rates
- if (val > 48000)
- val = 48000;
- if (val < 6300)
- val = 6300;
- s->prop_dac.rate = val;
- prog_codec(s, CS_TYPE_DAC);
- }
- }
-
- if (file->f_mode & FMODE_WRITE)
- val = s->prop_dac.rate;
- else if (file->f_mode & FMODE_READ)
- val = s->prop_adc.rate;
-
- return put_user(val, p);
-
- case SNDCTL_DSP_STEREO:
- if (get_user(val, p))
- return -EFAULT;
- CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO
- "cs4281: cs4281_ioctl(): DSP_STEREO val=%d\n", val));
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- s->prop_adc.channels = val ? 2 : 1;
- prog_codec(s, CS_TYPE_ADC);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- s->prop_dac.channels = val ? 2 : 1;
- prog_codec(s, CS_TYPE_DAC);
- }
- return 0;
-
- case SNDCTL_DSP_CHANNELS:
- if (get_user(val, p))
- return -EFAULT;
- CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO
- "cs4281: cs4281_ioctl(): DSP_CHANNELS val=%d\n",
- val));
- if (val != 0) {
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- if (val >= 2)
- s->prop_adc.channels = 2;
- else
- s->prop_adc.channels = 1;
- prog_codec(s, CS_TYPE_ADC);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- if (val >= 2)
- s->prop_dac.channels = 2;
- else
- s->prop_dac.channels = 1;
- prog_codec(s, CS_TYPE_DAC);
- }
- }
-
- if (file->f_mode & FMODE_WRITE)
- val = s->prop_dac.channels;
- else if (file->f_mode & FMODE_READ)
- val = s->prop_adc.channels;
-
- return put_user(val, p);
-
- case SNDCTL_DSP_GETFMTS: // Returns a mask
- CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO
- "cs4281: cs4281_ioctl(): DSP_GETFMT val=0x%.8x\n",
- AFMT_S16_LE | AFMT_U16_LE | AFMT_S8 |
- AFMT_U8));
- return put_user(AFMT_S16_LE | AFMT_U16_LE | AFMT_S8 |
- AFMT_U8, p);
-
- case SNDCTL_DSP_SETFMT:
- if (get_user(val, p))
- return -EFAULT;
- CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO
- "cs4281: cs4281_ioctl(): DSP_SETFMT val=0x%.8x\n",
- val));
- if (val != AFMT_QUERY) {
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ready = 0;
- if (val != AFMT_S16_LE
- && val != AFMT_U16_LE && val != AFMT_S8
- && val != AFMT_U8)
- val = AFMT_U8;
- s->prop_adc.fmt = val;
- s->prop_adc.fmt_original = s->prop_adc.fmt;
- prog_codec(s, CS_TYPE_ADC);
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ready = 0;
- if (val != AFMT_S16_LE
- && val != AFMT_U16_LE && val != AFMT_S8
- && val != AFMT_U8)
- val = AFMT_U8;
- s->prop_dac.fmt = val;
- s->prop_dac.fmt_original = s->prop_dac.fmt;
- prog_codec(s, CS_TYPE_DAC);
- }
- } else {
- if (file->f_mode & FMODE_WRITE)
- val = s->prop_dac.fmt_original;
- else if (file->f_mode & FMODE_READ)
- val = s->prop_adc.fmt_original;
- }
- CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO
- "cs4281: cs4281_ioctl(): DSP_SETFMT return val=0x%.8x\n",
- val));
- return put_user(val, p);
-
- case SNDCTL_DSP_POST:
- CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO
- "cs4281: cs4281_ioctl(): DSP_POST\n"));
- return 0;
-
- case SNDCTL_DSP_GETTRIGGER:
- val = 0;
- if (file->f_mode & s->ena & FMODE_READ)
- val |= PCM_ENABLE_INPUT;
- if (file->f_mode & s->ena & FMODE_WRITE)
- val |= PCM_ENABLE_OUTPUT;
- return put_user(val, p);
-
- case SNDCTL_DSP_SETTRIGGER:
- if (get_user(val, p))
- return -EFAULT;
- if (file->f_mode & FMODE_READ) {
- if (val & PCM_ENABLE_INPUT) {
- if (!s->dma_adc.ready
- && (ret = prog_dmabuf_adc(s)))
- return ret;
- start_adc(s);
- } else
- stop_adc(s);
- }
- if (file->f_mode & FMODE_WRITE) {
- if (val & PCM_ENABLE_OUTPUT) {
- if (!s->dma_dac.ready
- && (ret = prog_dmabuf_dac(s)))
- return ret;
- start_dac(s);
- } else
- stop_dac(s);
- }
- return 0;
-
- case SNDCTL_DSP_GETOSPACE:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- if (!s->dma_dac.ready && (val = prog_dmabuf_dac(s)))
- return val;
- spin_lock_irqsave(&s->lock, flags);
- cs4281_update_ptr(s,CS_FALSE);
- abinfo.fragsize = s->dma_dac.fragsize;
- if (s->dma_dac.mapped)
- abinfo.bytes = s->dma_dac.dmasize;
- else
- abinfo.bytes =
- s->dma_dac.dmasize - s->dma_dac.count;
- abinfo.fragstotal = s->dma_dac.numfrag;
- abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift;
- CS_DBGOUT(CS_FUNCTION | CS_PARMS, 4, printk(KERN_INFO
- "cs4281: cs4281_ioctl(): GETOSPACE .fragsize=%d .bytes=%d .fragstotal=%d .fragments=%d\n",
- abinfo.fragsize,abinfo.bytes,abinfo.fragstotal,
- abinfo.fragments));
- spin_unlock_irqrestore(&s->lock, flags);
- return copy_to_user(p, &abinfo,
- sizeof(abinfo)) ? -EFAULT : 0;
-
- case SNDCTL_DSP_GETISPACE:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s)))
- return val;
- spin_lock_irqsave(&s->lock, flags);
- cs4281_update_ptr(s,CS_FALSE);
- if (s->conversion) {
- abinfo.fragsize = s->dma_adc.fragsize / 2;
- abinfo.bytes = s->dma_adc.count / 2;
- abinfo.fragstotal = s->dma_adc.numfrag;
- abinfo.fragments =
- abinfo.bytes >> (s->dma_adc.fragshift - 1);
- } else {
- abinfo.fragsize = s->dma_adc.fragsize;
- abinfo.bytes = s->dma_adc.count;
- abinfo.fragstotal = s->dma_adc.numfrag;
- abinfo.fragments =
- abinfo.bytes >> s->dma_adc.fragshift;
- }
- spin_unlock_irqrestore(&s->lock, flags);
- return copy_to_user(p, &abinfo,
- sizeof(abinfo)) ? -EFAULT : 0;
-
- case SNDCTL_DSP_NONBLOCK:
- file->f_flags |= O_NONBLOCK;
- return 0;
-
- case SNDCTL_DSP_GETODELAY:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- if(!s->dma_dac.ready && prog_dmabuf_dac(s))
- return 0;
- spin_lock_irqsave(&s->lock, flags);
- cs4281_update_ptr(s,CS_FALSE);
- val = s->dma_dac.count;
- spin_unlock_irqrestore(&s->lock, flags);
- return put_user(val, p);
-
- case SNDCTL_DSP_GETIPTR:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- if(!s->dma_adc.ready && prog_dmabuf_adc(s))
- return 0;
- spin_lock_irqsave(&s->lock, flags);
- cs4281_update_ptr(s,CS_FALSE);
- cinfo.bytes = s->dma_adc.total_bytes;
- if (s->dma_adc.mapped) {
- cinfo.blocks =
- (cinfo.bytes >> s->dma_adc.fragshift) -
- s->dma_adc.blocks;
- s->dma_adc.blocks =
- cinfo.bytes >> s->dma_adc.fragshift;
- } else {
- if (s->conversion) {
- cinfo.blocks =
- s->dma_adc.count /
- 2 >> (s->dma_adc.fragshift - 1);
- } else
- cinfo.blocks =
- s->dma_adc.count >> s->dma_adc.
- fragshift;
- }
- if (s->conversion)
- cinfo.ptr = s->dma_adc.hwptr / 2;
- else
- cinfo.ptr = s->dma_adc.hwptr;
- if (s->dma_adc.mapped)
- s->dma_adc.count &= s->dma_adc.fragsize - 1;
- spin_unlock_irqrestore(&s->lock, flags);
- if (copy_to_user(p, &cinfo, sizeof(cinfo)))
- return -EFAULT;
- return 0;
-
- case SNDCTL_DSP_GETOPTR:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- if(!s->dma_dac.ready && prog_dmabuf_dac(s))
- return 0;
- spin_lock_irqsave(&s->lock, flags);
- cs4281_update_ptr(s,CS_FALSE);
- cinfo.bytes = s->dma_dac.total_bytes;
- if (s->dma_dac.mapped) {
- cinfo.blocks =
- (cinfo.bytes >> s->dma_dac.fragshift) -
- s->dma_dac.blocks;
- s->dma_dac.blocks =
- cinfo.bytes >> s->dma_dac.fragshift;
- } else {
- cinfo.blocks =
- s->dma_dac.count >> s->dma_dac.fragshift;
- }
- cinfo.ptr = s->dma_dac.hwptr;
- if (s->dma_dac.mapped)
- s->dma_dac.count &= s->dma_dac.fragsize - 1;
- spin_unlock_irqrestore(&s->lock, flags);
- if (copy_to_user(p, &cinfo, sizeof(cinfo)))
- return -EFAULT;
- return 0;
-
- case SNDCTL_DSP_GETBLKSIZE:
- if (file->f_mode & FMODE_WRITE) {
- if ((val = prog_dmabuf_dac(s)))
- return val;
- return put_user(s->dma_dac.fragsize, p);
- }
- if ((val = prog_dmabuf_adc(s)))
- return val;
- if (s->conversion)
- return put_user(s->dma_adc.fragsize / 2, p);
- else
- return put_user(s->dma_adc.fragsize, p);
-
- case SNDCTL_DSP_SETFRAGMENT:
- if (get_user(val, p))
- return -EFAULT;
- return 0; // Say OK, but do nothing.
-
- case SNDCTL_DSP_SUBDIVIDE:
- if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision)
- || (file->f_mode & FMODE_WRITE
- && s->dma_dac.subdivision)) return -EINVAL;
- if (get_user(val, p))
- return -EFAULT;
- if (val != 1 && val != 2 && val != 4)
- return -EINVAL;
- if (file->f_mode & FMODE_READ)
- s->dma_adc.subdivision = val;
- else if (file->f_mode & FMODE_WRITE)
- s->dma_dac.subdivision = val;
- return 0;
-
- case SOUND_PCM_READ_RATE:
- if (file->f_mode & FMODE_READ)
- return put_user(s->prop_adc.rate, p);
- else if (file->f_mode & FMODE_WRITE)
- return put_user(s->prop_dac.rate, p);
-
- case SOUND_PCM_READ_CHANNELS:
- if (file->f_mode & FMODE_READ)
- return put_user(s->prop_adc.channels, p);
- else if (file->f_mode & FMODE_WRITE)
- return put_user(s->prop_dac.channels, p);
-
- case SOUND_PCM_READ_BITS:
- if (file->f_mode & FMODE_READ)
- return
- put_user(
- (s->prop_adc.
- fmt & (AFMT_S8 | AFMT_U8)) ? 8 : 16,
- p);
- else if (file->f_mode & FMODE_WRITE)
- return
- put_user(
- (s->prop_dac.
- fmt & (AFMT_S8 | AFMT_U8)) ? 8 : 16,
- p);
-
- case SOUND_PCM_WRITE_FILTER:
- case SNDCTL_DSP_SETSYNCRO:
- case SOUND_PCM_READ_FILTER:
- return -EINVAL;
- }
- return mixer_ioctl(s, cmd, arg);
-}
-
-
-static int cs4281_release(struct inode *inode, struct file *file)
-{
- struct cs4281_state *s =
- (struct cs4281_state *) file->private_data;
-
- CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 2, printk(KERN_INFO
- "cs4281: cs4281_release(): inode=%p file=%p f_mode=%d\n",
- inode, file, file->f_mode));
-
- VALIDATE_STATE(s);
-
- if (file->f_mode & FMODE_WRITE) {
- drain_dac(s, file->f_flags & O_NONBLOCK);
- mutex_lock(&s->open_sem_dac);
- stop_dac(s);
- dealloc_dmabuf(s, &s->dma_dac);
- s->open_mode &= ~FMODE_WRITE;
- mutex_unlock(&s->open_sem_dac);
- wake_up(&s->open_wait_dac);
- }
- if (file->f_mode & FMODE_READ) {
- drain_adc(s, file->f_flags & O_NONBLOCK);
- mutex_lock(&s->open_sem_adc);
- stop_adc(s);
- dealloc_dmabuf(s, &s->dma_adc);
- s->open_mode &= ~FMODE_READ;
- mutex_unlock(&s->open_sem_adc);
- wake_up(&s->open_wait_adc);
- }
- return 0;
-}
-
-static int cs4281_open(struct inode *inode, struct file *file)
-{
- unsigned int minor = iminor(inode);
- struct cs4281_state *s=NULL;
- struct list_head *entry;
-
- CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO
- "cs4281: cs4281_open(): inode=%p file=%p f_mode=0x%x\n",
- inode, file, file->f_mode));
-
- list_for_each(entry, &cs4281_devs)
- {
- s = list_entry(entry, struct cs4281_state, list);
-
- if (!((s->dev_audio ^ minor) & ~0xf))
- break;
- }
- if (entry == &cs4281_devs)
- return -ENODEV;
- if (!s) {
- CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO
- "cs4281: cs4281_open(): Error - unable to find audio state struct\n"));
- return -ENODEV;
- }
- VALIDATE_STATE(s);
- file->private_data = s;
-
- // wait for device to become free
- if (!(file->f_mode & (FMODE_WRITE | FMODE_READ))) {
- CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2, printk(KERN_INFO
- "cs4281: cs4281_open(): Error - must open READ and/or WRITE\n"));
- return -ENODEV;
- }
- if (file->f_mode & FMODE_WRITE) {
- mutex_lock(&s->open_sem_dac);
- while (s->open_mode & FMODE_WRITE) {
- if (file->f_flags & O_NONBLOCK) {
- mutex_unlock(&s->open_sem_dac);
- return -EBUSY;
- }
- mutex_unlock(&s->open_sem_dac);
- interruptible_sleep_on(&s->open_wait_dac);
-
- if (signal_pending(current))
- return -ERESTARTSYS;
- mutex_lock(&s->open_sem_dac);
- }
- }
- if (file->f_mode & FMODE_READ) {
- mutex_lock(&s->open_sem_adc);
- while (s->open_mode & FMODE_READ) {
- if (file->f_flags & O_NONBLOCK) {
- mutex_unlock(&s->open_sem_adc);
- return -EBUSY;
- }
- mutex_unlock(&s->open_sem_adc);
- interruptible_sleep_on(&s->open_wait_adc);
-
- if (signal_pending(current))
- return -ERESTARTSYS;
- mutex_lock(&s->open_sem_adc);
- }
- }
- s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
- if (file->f_mode & FMODE_READ) {
- s->prop_adc.fmt = AFMT_U8;
- s->prop_adc.fmt_original = s->prop_adc.fmt;
- s->prop_adc.channels = 1;
- s->prop_adc.rate = 8000;
- s->prop_adc.clkdiv = 96 | 0x80;
- s->conversion = 0;
- s->ena &= ~FMODE_READ;
- s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags =
- s->dma_adc.subdivision = 0;
- mutex_unlock(&s->open_sem_adc);
-
- if (prog_dmabuf_adc(s)) {
- CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR
- "cs4281: adc Program dmabufs failed.\n"));
- cs4281_release(inode, file);
- return -ENOMEM;
- }
- prog_codec(s, CS_TYPE_ADC);
- }
- if (file->f_mode & FMODE_WRITE) {
- s->prop_dac.fmt = AFMT_U8;
- s->prop_dac.fmt_original = s->prop_dac.fmt;
- s->prop_dac.channels = 1;
- s->prop_dac.rate = 8000;
- s->prop_dac.clkdiv = 96 | 0x80;
- s->conversion = 0;
- s->ena &= ~FMODE_WRITE;
- s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags =
- s->dma_dac.subdivision = 0;
- mutex_unlock(&s->open_sem_dac);
-
- if (prog_dmabuf_dac(s)) {
- CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR
- "cs4281: dac Program dmabufs failed.\n"));
- cs4281_release(inode, file);
- return -ENOMEM;
- }
- prog_codec(s, CS_TYPE_DAC);
- }
- CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2,
- printk(KERN_INFO "cs4281: cs4281_open()- 0\n"));
- return nonseekable_open(inode, file);
-}
-
-
-// ******************************************************************************************
-// Wave (audio) file operations struct.
-// ******************************************************************************************
-static /*const */ struct file_operations cs4281_audio_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = cs4281_read,
- .write = cs4281_write,
- .poll = cs4281_poll,
- .ioctl = cs4281_ioctl,
- .mmap = cs4281_mmap,
- .open = cs4281_open,
- .release = cs4281_release,
-};
-
-// ---------------------------------------------------------------------
-
-// hold spinlock for the following!
-static void cs4281_handle_midi(struct cs4281_state *s)
-{
- unsigned char ch;
- int wake;
- unsigned temp1;
-
- wake = 0;
- while (!(readl(s->pBA0 + BA0_MIDSR) & 0x80)) {
- ch = readl(s->pBA0 + BA0_MIDRP);
- if (s->midi.icnt < MIDIINBUF) {
- s->midi.ibuf[s->midi.iwr] = ch;
- s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF;
- s->midi.icnt++;
- }
- wake = 1;
- }
- if (wake)
- wake_up(&s->midi.iwait);
- wake = 0;
- while (!(readl(s->pBA0 + BA0_MIDSR) & 0x40) && s->midi.ocnt > 0) {
- temp1 = (s->midi.obuf[s->midi.ord]) & 0x000000ff;
- writel(temp1, s->pBA0 + BA0_MIDWP);
- s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF;
- s->midi.ocnt--;
- if (s->midi.ocnt < MIDIOUTBUF - 16)
- wake = 1;
- }
- if (wake)
- wake_up(&s->midi.owait);
-}
-
-
-
-static irqreturn_t cs4281_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct cs4281_state *s = (struct cs4281_state *) dev_id;
- unsigned int temp1;
-
- // fastpath out, to ease interrupt sharing
- temp1 = readl(s->pBA0 + BA0_HISR); // Get Int Status reg.
-
- CS_DBGOUT(CS_INTERRUPT, 6, printk(KERN_INFO
- "cs4281: cs4281_interrupt() BA0_HISR=0x%.8x\n", temp1));
-/*
-* If not DMA or MIDI interrupt, then just return.
-*/
- if (!(temp1 & (HISR_DMA0 | HISR_DMA1 | HISR_MIDI))) {
- writel(HICR_IEV | HICR_CHGM, s->pBA0 + BA0_HICR);
- CS_DBGOUT(CS_INTERRUPT, 9, printk(KERN_INFO
- "cs4281: cs4281_interrupt(): returning not cs4281 interrupt.\n"));
- return IRQ_NONE;
- }
-
- if (temp1 & HISR_DMA0) // If play interrupt,
- readl(s->pBA0 + BA0_HDSR0); // clear the source.
-
- if (temp1 & HISR_DMA1) // Same for play.
- readl(s->pBA0 + BA0_HDSR1);
- writel(HICR_IEV | HICR_CHGM, s->pBA0 + BA0_HICR); // Local EOI
-
- spin_lock(&s->lock);
- cs4281_update_ptr(s,CS_TRUE);
- cs4281_handle_midi(s);
- spin_unlock(&s->lock);
- return IRQ_HANDLED;
-}
-
-// **************************************************************************
-
-static void cs4281_midi_timer(unsigned long data)
-{
- struct cs4281_state *s = (struct cs4281_state *) data;
- unsigned long flags;
-
- spin_lock_irqsave(&s->lock, flags);
- cs4281_handle_midi(s);
- spin_unlock_irqrestore(&s->lock, flags);
- s->midi.timer.expires = jiffies + 1;
- add_timer(&s->midi.timer);
-}
-
-
-// ---------------------------------------------------------------------
-
-static ssize_t cs4281_midi_read(struct file *file, char __user *buffer,
- size_t count, loff_t * ppos)
-{
- struct cs4281_state *s =
- (struct cs4281_state *) file->private_data;
- ssize_t ret;
- unsigned long flags;
- unsigned ptr;
- int cnt;
-
- VALIDATE_STATE(s);
- if (!access_ok(VERIFY_WRITE, buffer, count))
- return -EFAULT;
- ret = 0;
- while (count > 0) {
- spin_lock_irqsave(&s->lock, flags);
- ptr = s->midi.ird;
- cnt = MIDIINBUF - ptr;
- if (s->midi.icnt < cnt)
- cnt = s->midi.icnt;
- spin_unlock_irqrestore(&s->lock, flags);
- if (cnt > count)
- cnt = count;
- if (cnt <= 0) {
- if (file->f_flags & O_NONBLOCK)
- return ret ? ret : -EAGAIN;
- interruptible_sleep_on(&s->midi.iwait);
- if (signal_pending(current))
- return ret ? ret : -ERESTARTSYS;
- continue;
- }
- if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt))
- return ret ? ret : -EFAULT;
- ptr = (ptr + cnt) % MIDIINBUF;
- spin_lock_irqsave(&s->lock, flags);
- s->midi.ird = ptr;
- s->midi.icnt -= cnt;
- spin_unlock_irqrestore(&s->lock, flags);
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- }
- return ret;
-}
-
-
-static ssize_t cs4281_midi_write(struct file *file, const char __user *buffer,
- size_t count, loff_t * ppos)
-{
- struct cs4281_state *s =
- (struct cs4281_state *) file->private_data;
- ssize_t ret;
- unsigned long flags;
- unsigned ptr;
- int cnt;
-
- VALIDATE_STATE(s);
- if (!access_ok(VERIFY_READ, buffer, count))
- return -EFAULT;
- ret = 0;
- while (count > 0) {
- spin_lock_irqsave(&s->lock, flags);
- ptr = s->midi.owr;
- cnt = MIDIOUTBUF - ptr;
- if (s->midi.ocnt + cnt > MIDIOUTBUF)
- cnt = MIDIOUTBUF - s->midi.ocnt;
- if (cnt <= 0)
- cs4281_handle_midi(s);
- spin_unlock_irqrestore(&s->lock, flags);
- if (cnt > count)
- cnt = count;
- if (cnt <= 0) {
- if (file->f_flags & O_NONBLOCK)
- return ret ? ret : -EAGAIN;
- interruptible_sleep_on(&s->midi.owait);
- if (signal_pending(current))
- return ret ? ret : -ERESTARTSYS;
- continue;
- }
- if (copy_from_user(s->midi.obuf + ptr, buffer, cnt))
- return ret ? ret : -EFAULT;
- ptr = (ptr + cnt) % MIDIOUTBUF;
- spin_lock_irqsave(&s->lock, flags);
- s->midi.owr = ptr;
- s->midi.ocnt += cnt;
- spin_unlock_irqrestore(&s->lock, flags);
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- spin_lock_irqsave(&s->lock, flags);
- cs4281_handle_midi(s);
- spin_unlock_irqrestore(&s->lock, flags);
- }
- return ret;
-}
-
-
-static unsigned int cs4281_midi_poll(struct file *file,
- struct poll_table_struct *wait)
-{
- struct cs4281_state *s =
- (struct cs4281_state *) file->private_data;
- unsigned long flags;
- unsigned int mask = 0;
-
- VALIDATE_STATE(s);
- if (file->f_flags & FMODE_WRITE)
- poll_wait(file, &s->midi.owait, wait);
- if (file->f_flags & FMODE_READ)
- poll_wait(file, &s->midi.iwait, wait);
- spin_lock_irqsave(&s->lock, flags);
- if (file->f_flags & FMODE_READ) {
- if (s->midi.icnt > 0)
- mask |= POLLIN | POLLRDNORM;
- }
- if (file->f_flags & FMODE_WRITE) {
- if (s->midi.ocnt < MIDIOUTBUF)
- mask |= POLLOUT | POLLWRNORM;
- }
- spin_unlock_irqrestore(&s->lock, flags);
- return mask;
-}
-
-
-static int cs4281_midi_open(struct inode *inode, struct file *file)
-{
- unsigned long flags, temp1;
- unsigned int minor = iminor(inode);
- struct cs4281_state *s=NULL;
- struct list_head *entry;
- list_for_each(entry, &cs4281_devs)
- {
- s = list_entry(entry, struct cs4281_state, list);
-
- if (s->dev_midi == minor)
- break;
- }
-
- if (entry == &cs4281_devs)
- return -ENODEV;
- if (!s)
- {
- CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO
- "cs4281: cs4281_open(): Error - unable to find audio state struct\n"));
- return -ENODEV;
- }
- VALIDATE_STATE(s);
- file->private_data = s;
- // wait for device to become free
- mutex_lock(&s->open_sem);
- while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
- if (file->f_flags & O_NONBLOCK) {
- mutex_unlock(&s->open_sem);
- return -EBUSY;
- }
- mutex_unlock(&s->open_sem);
- interruptible_sleep_on(&s->open_wait);
- if (signal_pending(current))
- return -ERESTARTSYS;
- mutex_lock(&s->open_sem);
- }
- spin_lock_irqsave(&s->lock, flags);
- if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
- s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
- s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
- writel(1, s->pBA0 + BA0_MIDCR); // Reset the interface.
- writel(0, s->pBA0 + BA0_MIDCR); // Return to normal mode.
- s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
- writel(0x0000000f, s->pBA0 + BA0_MIDCR); // Enable transmit, record, ints.
- temp1 = readl(s->pBA0 + BA0_HIMR);
- writel(temp1 & 0xffbfffff, s->pBA0 + BA0_HIMR); // Enable midi int. recognition.
- writel(HICR_IEV | HICR_CHGM, s->pBA0 + BA0_HICR); // Enable interrupts
- init_timer(&s->midi.timer);
- s->midi.timer.expires = jiffies + 1;
- s->midi.timer.data = (unsigned long) s;
- s->midi.timer.function = cs4281_midi_timer;
- add_timer(&s->midi.timer);
- }
- if (file->f_mode & FMODE_READ) {
- s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
- }
- if (file->f_mode & FMODE_WRITE) {
- s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
- }
- spin_unlock_irqrestore(&s->lock, flags);
- s->open_mode |=
- (file->
- f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ |
- FMODE_MIDI_WRITE);
- mutex_unlock(&s->open_sem);
- return nonseekable_open(inode, file);
-}
-
-
-static int cs4281_midi_release(struct inode *inode, struct file *file)
-{
- struct cs4281_state *s =
- (struct cs4281_state *) file->private_data;
- DECLARE_WAITQUEUE(wait, current);
- unsigned long flags;
- unsigned count, tmo;
-
- VALIDATE_STATE(s);
-
- if (file->f_mode & FMODE_WRITE) {
- add_wait_queue(&s->midi.owait, &wait);
- for (;;) {
- set_current_state(TASK_INTERRUPTIBLE);
- spin_lock_irqsave(&s->lock, flags);
- count = s->midi.ocnt;
- spin_unlock_irqrestore(&s->lock, flags);
- if (count <= 0)
- break;
- if (signal_pending(current))
- break;
- if (file->f_flags & O_NONBLOCK) {
- remove_wait_queue(&s->midi.owait, &wait);
- current->state = TASK_RUNNING;
- return -EBUSY;
- }
- tmo = (count * HZ) / 3100;
- if (!schedule_timeout(tmo ? : 1) && tmo)
- printk(KERN_DEBUG
- "cs4281: midi timed out??\n");
- }
- remove_wait_queue(&s->midi.owait, &wait);
- current->state = TASK_RUNNING;
- }
- mutex_lock(&s->open_sem);
- s->open_mode &=
- (~(file->f_mode << FMODE_MIDI_SHIFT)) & (FMODE_MIDI_READ |
- FMODE_MIDI_WRITE);
- spin_lock_irqsave(&s->lock, flags);
- if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
- writel(0, s->pBA0 + BA0_MIDCR); // Disable Midi interrupts.
- del_timer(&s->midi.timer);
- }
- spin_unlock_irqrestore(&s->lock, flags);
- mutex_unlock(&s->open_sem);
- wake_up(&s->open_wait);
- return 0;
-}
-
-// ******************************************************************************************
-// Midi file operations struct.
-// ******************************************************************************************
-static /*const */ struct file_operations cs4281_midi_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = cs4281_midi_read,
- .write = cs4281_midi_write,
- .poll = cs4281_midi_poll,
- .open = cs4281_midi_open,
- .release = cs4281_midi_release,
-};
-
-
-// ---------------------------------------------------------------------
-
-// maximum number of devices
-#define NR_DEVICE 8 // Only eight devices supported currently.
-
-// ---------------------------------------------------------------------
-
-static struct initvol {
- int mixch;
- int vol;
-} initvol[] __devinitdata = {
-
- {
- SOUND_MIXER_WRITE_VOLUME, 0x4040}, {
- SOUND_MIXER_WRITE_PCM, 0x4040}, {
- SOUND_MIXER_WRITE_SYNTH, 0x4040}, {
- SOUND_MIXER_WRITE_CD, 0x4040}, {
- SOUND_MIXER_WRITE_LINE, 0x4040}, {
- SOUND_MIXER_WRITE_LINE1, 0x4040}, {
- SOUND_MIXER_WRITE_RECLEV, 0x0000}, {
- SOUND_MIXER_WRITE_SPEAKER, 0x4040}, {
- SOUND_MIXER_WRITE_MIC, 0x0000}
-};
-
-
-#ifndef NOT_CS4281_PM
-static void __devinit cs4281_BuildFIFO(
- struct cs4281_pipeline *p,
- struct cs4281_state *s)
-{
- switch(p->number)
- {
- case 0: /* playback */
- {
- p->u32FCRnAddress = BA0_FCR0;
- p->u32FSICnAddress = BA0_FSIC0;
- p->u32FPDRnAddress = BA0_FPDR0;
- break;
- }
- case 1: /* capture */
- {
- p->u32FCRnAddress = BA0_FCR1;
- p->u32FSICnAddress = BA0_FSIC1;
- p->u32FPDRnAddress = BA0_FPDR1;
- break;
- }
-
- case 2:
- {
- p->u32FCRnAddress = BA0_FCR2;
- p->u32FSICnAddress = BA0_FSIC2;
- p->u32FPDRnAddress = BA0_FPDR2;
- break;
- }
- case 3:
- {
- p->u32FCRnAddress = BA0_FCR3;
- p->u32FSICnAddress = BA0_FSIC3;
- p->u32FPDRnAddress = BA0_FPDR3;
- break;
- }
- default:
- break;
- }
- //
- // first read the hardware to initialize the member variables
- //
- p->u32FCRnValue = readl(s->pBA0 + p->u32FCRnAddress);
- p->u32FSICnValue = readl(s->pBA0 + p->u32FSICnAddress);
- p->u32FPDRnValue = readl(s->pBA0 + p->u32FPDRnAddress);
-
-}
-
-static void __devinit cs4281_BuildDMAengine(
- struct cs4281_pipeline *p,
- struct cs4281_state *s)
-{
-/*
-* initialize all the addresses of this pipeline dma info.
-*/
- switch(p->number)
- {
- case 0: /* playback */
- {
- p->u32DBAnAddress = BA0_DBA0;
- p->u32DCAnAddress = BA0_DCA0;
- p->u32DBCnAddress = BA0_DBC0;
- p->u32DCCnAddress = BA0_DCC0;
- p->u32DMRnAddress = BA0_DMR0;
- p->u32DCRnAddress = BA0_DCR0;
- p->u32HDSRnAddress = BA0_HDSR0;
- break;
- }
-
- case 1: /* capture */
- {
- p->u32DBAnAddress = BA0_DBA1;
- p->u32DCAnAddress = BA0_DCA1;
- p->u32DBCnAddress = BA0_DBC1;
- p->u32DCCnAddress = BA0_DCC1;
- p->u32DMRnAddress = BA0_DMR1;
- p->u32DCRnAddress = BA0_DCR1;
- p->u32HDSRnAddress = BA0_HDSR1;
- break;
- }
-
- case 2:
- {
- p->u32DBAnAddress = BA0_DBA2;
- p->u32DCAnAddress = BA0_DCA2;
- p->u32DBCnAddress = BA0_DBC2;
- p->u32DCCnAddress = BA0_DCC2;
- p->u32DMRnAddress = BA0_DMR2;
- p->u32DCRnAddress = BA0_DCR2;
- p->u32HDSRnAddress = BA0_HDSR2;
- break;
- }
-
- case 3:
- {
- p->u32DBAnAddress = BA0_DBA3;
- p->u32DCAnAddress = BA0_DCA3;
- p->u32DBCnAddress = BA0_DBC3;
- p->u32DCCnAddress = BA0_DCC3;
- p->u32DMRnAddress = BA0_DMR3;
- p->u32DCRnAddress = BA0_DCR3;
- p->u32HDSRnAddress = BA0_HDSR3;
- break;
- }
- default:
- break;
- }
-
-//
-// Initialize the dma values for this pipeline
-//
- p->u32DBAnValue = readl(s->pBA0 + p->u32DBAnAddress);
- p->u32DBCnValue = readl(s->pBA0 + p->u32DBCnAddress);
- p->u32DMRnValue = readl(s->pBA0 + p->u32DMRnAddress);
- p->u32DCRnValue = readl(s->pBA0 + p->u32DCRnAddress);
-
-}
-
-static void __devinit cs4281_InitPM(struct cs4281_state *s)
-{
- int i;
- struct cs4281_pipeline *p;
-
- for(i=0;i<CS4281_NUMBER_OF_PIPELINES;i++)
- {
- p = &s->pl[i];
- p->number = i;
- cs4281_BuildDMAengine(p,s);
- cs4281_BuildFIFO(p,s);
- /*
- * currently only 2 pipelines are used
- * so, only set the valid bit on the playback and capture.
- */
- if( (i == CS4281_PLAYBACK_PIPELINE_NUMBER) ||
- (i == CS4281_CAPTURE_PIPELINE_NUMBER))
- p->flags |= CS4281_PIPELINE_VALID;
- }
- s->pm.u32SSPM_BITS = 0x7e; /* rev c, use 0x7c for rev a or b */
-}
-#endif
-
-static int __devinit cs4281_probe(struct pci_dev *pcidev,
- const struct pci_device_id *pciid)
-{
- struct cs4281_state *s;
- dma_addr_t dma_mask;
- mm_segment_t fs;
- int i, val;
- unsigned int temp1, temp2;
-
- CS_DBGOUT(CS_FUNCTION | CS_INIT, 2,
- printk(KERN_INFO "cs4281: probe()+\n"));
-
- if (pci_enable_device(pcidev)) {
- CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR
- "cs4281: pci_enable_device() failed\n"));
- return -1;
- }
- if (!(pci_resource_flags(pcidev, 0) & IORESOURCE_MEM) ||
- !(pci_resource_flags(pcidev, 1) & IORESOURCE_MEM)) {
- CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
- "cs4281: probe()- Memory region not assigned\n"));
- return -ENODEV;
- }
- if (pcidev->irq == 0) {
- CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
- "cs4281: probe() IRQ not assigned\n"));
- return -ENODEV;
- }
- dma_mask = 0xffffffff; /* this enables playback and recording */
- i = pci_set_dma_mask(pcidev, dma_mask);
- if (i) {
- CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
- "cs4281: probe() architecture does not support 32bit PCI busmaster DMA\n"));
- return i;
- }
- if (!(s = kmalloc(sizeof(struct cs4281_state), GFP_KERNEL))) {
- CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
- "cs4281: probe() no memory for state struct.\n"));
- return -1;
- }
- memset(s, 0, sizeof(struct cs4281_state));
- init_waitqueue_head(&s->dma_adc.wait);
- init_waitqueue_head(&s->dma_dac.wait);
- init_waitqueue_head(&s->open_wait);
- init_waitqueue_head(&s->open_wait_adc);
- init_waitqueue_head(&s->open_wait_dac);
- init_waitqueue_head(&s->midi.iwait);
- init_waitqueue_head(&s->midi.owait);
- mutex_init(&s->open_sem);
- mutex_init(&s->open_sem_adc);
- mutex_init(&s->open_sem_dac);
- spin_lock_init(&s->lock);
- s->pBA0phys = pci_resource_start(pcidev, 0);
- s->pBA1phys = pci_resource_start(pcidev, 1);
-
- /* Convert phys to linear. */
- s->pBA0 = ioremap_nocache(s->pBA0phys, 4096);
- if (!s->pBA0) {
- CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_ERR
- "cs4281: BA0 I/O mapping failed. Skipping part.\n"));
- goto err_free;
- }
- s->pBA1 = ioremap_nocache(s->pBA1phys, 65536);
- if (!s->pBA1) {
- CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_ERR
- "cs4281: BA1 I/O mapping failed. Skipping part.\n"));
- goto err_unmap;
- }
-
- temp1 = readl(s->pBA0 + BA0_PCICFG00);
- temp2 = readl(s->pBA0 + BA0_PCICFG04);
-
- CS_DBGOUT(CS_INIT, 2,
- printk(KERN_INFO
- "cs4281: probe() BA0=0x%.8x BA1=0x%.8x pBA0=%p pBA1=%p \n",
- (unsigned) temp1, (unsigned) temp2, s->pBA0, s->pBA1));
- CS_DBGOUT(CS_INIT, 2,
- printk(KERN_INFO
- "cs4281: probe() pBA0phys=0x%.8x pBA1phys=0x%.8x\n",
- (unsigned) s->pBA0phys, (unsigned) s->pBA1phys));
-
-#ifndef NOT_CS4281_PM
- s->pm.flags = CS4281_PM_IDLE;
-#endif
- temp1 = cs4281_hw_init(s);
- if (temp1) {
- CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_ERR
- "cs4281: cs4281_hw_init() failed. Skipping part.\n"));
- goto err_irq;
- }
- s->magic = CS4281_MAGIC;
- s->pcidev = pcidev;
- s->irq = pcidev->irq;
- if (request_irq
- (s->irq, cs4281_interrupt, IRQF_SHARED, "Crystal CS4281", s)) {
- CS_DBGOUT(CS_INIT | CS_ERROR, 1,
- printk(KERN_ERR "cs4281: irq %u in use\n", s->irq));
- goto err_irq;
- }
- if ((s->dev_audio = register_sound_dsp(&cs4281_audio_fops, -1)) <
- 0) {
- CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR
- "cs4281: probe() register_sound_dsp() failed.\n"));
- goto err_dev1;
- }
- if ((s->dev_mixer = register_sound_mixer(&cs4281_mixer_fops, -1)) <
- 0) {
- CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR
- "cs4281: probe() register_sound_mixer() failed.\n"));
- goto err_dev2;
- }
- if ((s->dev_midi = register_sound_midi(&cs4281_midi_fops, -1)) < 0) {
- CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR
- "cs4281: probe() register_sound_midi() failed.\n"));
- goto err_dev3;
- }
-#ifndef NOT_CS4281_PM
- cs4281_InitPM(s);
- s->pm.flags |= CS4281_PM_NOT_REGISTERED;
-#endif
-
- pci_set_master(pcidev); // enable bus mastering
-
- fs = get_fs();
- set_fs(KERNEL_DS);
- val = SOUND_MASK_LINE;
- mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long) &val);
- for (i = 0; i < sizeof(initvol) / sizeof(initvol[0]); i++) {
- val = initvol[i].vol;
- mixer_ioctl(s, initvol[i].mixch, (unsigned long) &val);
- }
- val = 1; // enable mic preamp
- mixer_ioctl(s, SOUND_MIXER_PRIVATE1, (unsigned long) &val);
- set_fs(fs);
-
- pci_set_drvdata(pcidev, s);
- list_add(&s->list, &cs4281_devs);
- CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
- "cs4281: probe()- device allocated successfully\n"));
- return 0;
-
- err_dev3:
- unregister_sound_mixer(s->dev_mixer);
- err_dev2:
- unregister_sound_dsp(s->dev_audio);
- err_dev1:
- free_irq(s->irq, s);
- err_irq:
- iounmap(s->pBA1);
- err_unmap:
- iounmap(s->pBA0);
- err_free:
- kfree(s);
-
- CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_INFO
- "cs4281: probe()- no device allocated\n"));
- return -ENODEV;
-} // probe_cs4281
-
-
-// ---------------------------------------------------------------------
-
-static void __devexit cs4281_remove(struct pci_dev *pci_dev)
-{
- struct cs4281_state *s = pci_get_drvdata(pci_dev);
- // stop DMA controller
- synchronize_irq(s->irq);
- free_irq(s->irq, s);
- unregister_sound_dsp(s->dev_audio);
- unregister_sound_mixer(s->dev_mixer);
- unregister_sound_midi(s->dev_midi);
- iounmap(s->pBA1);
- iounmap(s->pBA0);
- pci_set_drvdata(pci_dev,NULL);
- list_del(&s->list);
- kfree(s);
- CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
- "cs4281: cs4281_remove()-: remove successful\n"));
-}
-
-static struct pci_device_id cs4281_pci_tbl[] = {
- {
- .vendor = PCI_VENDOR_ID_CIRRUS,
- .device = PCI_DEVICE_ID_CRYSTAL_CS4281,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- },
- { 0, },
-};
-
-MODULE_DEVICE_TABLE(pci, cs4281_pci_tbl);
-
-static struct pci_driver cs4281_pci_driver = {
- .name = "cs4281",
- .id_table = cs4281_pci_tbl,
- .probe = cs4281_probe,
- .remove = __devexit_p(cs4281_remove),
- .suspend = CS4281_SUSPEND_TBL,
- .resume = CS4281_RESUME_TBL,
-};
-
-static int __init cs4281_init_module(void)
-{
- int rtn = 0;
- CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
- "cs4281: cs4281_init_module()+ \n"));
- printk(KERN_INFO "cs4281: version v%d.%02d.%d time " __TIME__ " "
- __DATE__ "\n", CS4281_MAJOR_VERSION, CS4281_MINOR_VERSION,
- CS4281_ARCH);
- rtn = pci_register_driver(&cs4281_pci_driver);
-
- CS_DBGOUT(CS_INIT | CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: cs4281_init_module()- (%d)\n",rtn));
- return rtn;
-}
-
-static void __exit cs4281_cleanup_module(void)
-{
- pci_unregister_driver(&cs4281_pci_driver);
- CS_DBGOUT(CS_INIT | CS_FUNCTION, 2,
- printk(KERN_INFO "cs4281: cleanup_cs4281() finished\n"));
-}
-// ---------------------------------------------------------------------
-
-MODULE_AUTHOR("gw boynton, audio@crystal.cirrus.com");
-MODULE_DESCRIPTION("Cirrus Logic CS4281 Driver");
-MODULE_LICENSE("GPL");
-
-// ---------------------------------------------------------------------
-
-module_init(cs4281_init_module);
-module_exit(cs4281_cleanup_module);
-