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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/oss/cs46xx.c
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'sound/oss/cs46xx.c')
-rw-r--r--sound/oss/cs46xx.c5794
1 files changed, 5794 insertions, 0 deletions
diff --git a/sound/oss/cs46xx.c b/sound/oss/cs46xx.c
new file mode 100644
index 000000000000..8ce6b48f1881
--- /dev/null
+++ b/sound/oss/cs46xx.c
@@ -0,0 +1,5794 @@
+/*
+ * Crystal SoundFusion CS46xx driver
+ *
+ * Copyright 1998-2001 Cirrus Logic Corporation <pcaudio@crystal.cirrus.com>
+ * <twoller@crystal.cirrus.com>
+ * Copyright 1999-2000 Jaroslav Kysela <perex@suse.cz>
+ * Copyright 2000 Alan Cox <alan@redhat.com>
+ *
+ * The core of this code is taken from the ALSA project driver by
+ * Jaroslav. Please send Jaroslav the credit for the driver and
+ * report bugs in this port to <alan@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Current maintainers:
+ * Cirrus Logic Corporation, Thomas Woller (tw)
+ * <twoller@crystal.cirrus.com>
+ * Nils Faerber (nf)
+ * <nils@kernelconcepts.de>
+ * Thanks to David Pollard for testing.
+ *
+ * Changes:
+ * 20000909-nf Changed cs_read, cs_write and drain_dac
+ * 20001025-tw Separate Playback/Capture structs and buffers.
+ * Added Scatter/Gather support for Playback.
+ * Added Capture.
+ * 20001027-nf Port to kernel 2.4.0-test9, some clean-ups
+ * Start of powermanagement support (CS46XX_PM).
+ * 20001128-tw Add module parm for default buffer order.
+ * added DMA_GFP flag to kmalloc dma buffer allocs.
+ * backfill silence to eliminate stuttering on
+ * underruns.
+ * 20001201-tw add resyncing of swptr on underruns.
+ * 20001205-tw-nf fixed GETOSPACE ioctl() after open()
+ * 20010113-tw patch from Hans Grobler general cleanup.
+ * 20010117-tw 2.4.0 pci cleanup, wrapper code for 2.2.16-2.4.0
+ * 20010118-tw basic PM support for 2.2.16+ and 2.4.0/2.4.2.
+ * 20010228-dh patch from David Huggins - cs_update_ptr recursion.
+ * 20010409-tw add hercules game theatre XP amp code.
+ * 20010420-tw cleanup powerdown/up code.
+ * 20010521-tw eliminate pops, and fixes for powerdown.
+ * 20010525-tw added fixes for thinkpads with powerdown logic.
+ * 20010723-sh patch from Horms (Simon Horman) -
+ * SOUND_PCM_READ_BITS returns bits as set in driver
+ * rather than a logical or of the possible values.
+ * Various ioctls handle the case where the device
+ * is open for reading or writing but not both better.
+ *
+ * Status:
+ * Playback/Capture supported from 8k-48k.
+ * 16Bit Signed LE & 8Bit Unsigned, with Mono or Stereo supported.
+ *
+ * APM/PM - 2.2.x APM is enabled and functioning fine. APM can also
+ * be enabled for 2.4.x by modifying the CS46XX_ACPI_SUPPORT macro
+ * definition.
+ *
+ * Hercules Game Theatre XP - the EGPIO2 pin controls the external Amp,
+ * so, use the drain/polarity to enable.
+ * hercules_egpio_disable set to 1, will force a 0 to EGPIODR.
+ *
+ * VTB Santa Cruz - the GPIO7/GPIO8 on the Secondary Codec control
+ * the external amplifier for the "back" speakers, since we do not
+ * support the secondary codec then this external amp is also not
+ * turned on.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/sound.h>
+#include <linux/slab.h>
+#include <linux/soundcard.h>
+#include <linux/pci.h>
+#include <linux/bitops.h>
+#include <linux/init.h>
+#include <linux/poll.h>
+#include <linux/ac97_codec.h>
+
+#include <asm/io.h>
+#include <asm/dma.h>
+#include <asm/uaccess.h>
+
+#include "cs46xxpm-24.h"
+#include "cs46xx_wrapper-24.h"
+#include "cs461x.h"
+
+/* MIDI buffer sizes */
+#define CS_MIDIINBUF 500
+#define CS_MIDIOUTBUF 500
+
+#define ADC_RUNNING 1
+#define DAC_RUNNING 2
+
+#define CS_FMT_16BIT 1 /* These are fixed in fact */
+#define CS_FMT_STEREO 2
+#define CS_FMT_MASK 3
+
+#define CS_TYPE_ADC 1
+#define CS_TYPE_DAC 2
+
+#define CS_TRUE 1
+#define CS_FALSE 0
+
+#define CS_INC_USE_COUNT(m) (atomic_inc(m))
+#define CS_DEC_USE_COUNT(m) (atomic_dec(m))
+#define CS_DEC_AND_TEST(m) (atomic_dec_and_test(m))
+#define CS_IN_USE(m) (atomic_read(m) != 0)
+
+#define CS_DBGBREAKPOINT {__asm__("INT $3");}
+/*
+ * CS461x definitions
+ */
+
+#define CS461X_BA0_SIZE 0x2000
+#define CS461X_BA1_DATA0_SIZE 0x3000
+#define CS461X_BA1_DATA1_SIZE 0x3800
+#define CS461X_BA1_PRG_SIZE 0x7000
+#define CS461X_BA1_REG_SIZE 0x0100
+
+#define GOF_PER_SEC 200
+
+#define CSDEBUG_INTERFACE 1
+#define CSDEBUG 1
+/*
+ * Turn on/off debugging compilation by using 1/0 respectively for CSDEBUG
+ *
+ *
+ * CSDEBUG is usual mode is set to 1, then use the
+ * cs_debuglevel and cs_debugmask to turn on or off debugging.
+ * Debug level of 1 has been defined to be kernel errors and info
+ * that should be printed on any released driver.
+ */
+#if CSDEBUG
+#define CS_DBGOUT(mask,level,x) if((cs_debuglevel >= (level)) && ((mask) & cs_debugmask)) {x;}
+#else
+#define CS_DBGOUT(mask,level,x)
+#endif
+/*
+ * cs_debugmask areas
+ */
+#define CS_INIT 0x00000001 /* initialization and probe functions */
+#define CS_ERROR 0x00000002 /* tmp debugging bit placeholder */
+#define CS_INTERRUPT 0x00000004 /* interrupt handler (separate from all other) */
+#define CS_FUNCTION 0x00000008 /* enter/leave functions */
+#define CS_WAVE_WRITE 0x00000010 /* write information for wave */
+#define CS_WAVE_READ 0x00000020 /* read information for wave */
+#define CS_MIDI_WRITE 0x00000040 /* write information for midi */
+#define CS_MIDI_READ 0x00000080 /* read information for midi */
+#define CS_MPU401_WRITE 0x00000100 /* write information for mpu401 */
+#define CS_MPU401_READ 0x00000200 /* read information for mpu401 */
+#define CS_OPEN 0x00000400 /* all open functions in the driver */
+#define CS_RELEASE 0x00000800 /* all release functions in the driver */
+#define CS_PARMS 0x00001000 /* functional and operational parameters */
+#define CS_IOCTL 0x00002000 /* ioctl (non-mixer) */
+#define CS_PM 0x00004000 /* PM */
+#define CS_TMP 0x10000000 /* tmp debug mask bit */
+
+#define CS_IOCTL_CMD_SUSPEND 0x1 // suspend
+#define CS_IOCTL_CMD_RESUME 0x2 // resume
+
+#if CSDEBUG
+static unsigned long cs_debuglevel=1; /* levels range from 1-9 */
+module_param(cs_debuglevel, ulong, 0644);
+static unsigned long cs_debugmask=CS_INIT | CS_ERROR; /* use CS_DBGOUT with various mask values */
+module_param(cs_debugmask, ulong, 0644);
+#endif
+static unsigned long hercules_egpio_disable; /* if non-zero set all EGPIO to 0 */
+module_param(hercules_egpio_disable, ulong, 0);
+static unsigned long initdelay=700; /* PM delay in millisecs */
+module_param(initdelay, ulong, 0);
+static unsigned long powerdown=-1; /* turn on/off powerdown processing in driver */
+module_param(powerdown, ulong, 0);
+#define DMABUF_DEFAULTORDER 3
+static unsigned long defaultorder=DMABUF_DEFAULTORDER;
+module_param(defaultorder, ulong, 0);
+
+static int external_amp;
+module_param(external_amp, bool, 0);
+static int thinkpad;
+module_param(thinkpad, bool, 0);
+
+/*
+* set the powerdown module parm to 0 to disable all
+* powerdown. also set thinkpad to 1 to disable powerdown,
+* but also to enable the clkrun functionality.
+*/
+static unsigned cs_powerdown=1;
+static unsigned cs_laptop_wait=1;
+
+/* An instance of the 4610 channel */
+struct cs_channel
+{
+ int used;
+ int num;
+ void *state;
+};
+
+#define CS46XX_MAJOR_VERSION "1"
+#define CS46XX_MINOR_VERSION "28"
+
+#ifdef __ia64__
+#define CS46XX_ARCH "64" //architecture key
+#else
+#define CS46XX_ARCH "32" //architecture key
+#endif
+
+static struct list_head cs46xx_devs = { &cs46xx_devs, &cs46xx_devs };
+
+/* magic numbers to protect our data structures */
+#define CS_CARD_MAGIC 0x43525553 /* "CRUS" */
+#define CS_STATE_MAGIC 0x4c4f4749 /* "LOGI" */
+#define NR_HW_CH 3
+
+/* maxinum number of AC97 codecs connected, AC97 2.0 defined 4 */
+#define NR_AC97 2
+
+static const unsigned sample_size[] = { 1, 2, 2, 4 };
+static const unsigned sample_shift[] = { 0, 1, 1, 2 };
+
+/* "software" or virtual channel, an instance of opened /dev/dsp */
+struct cs_state {
+ unsigned int magic;
+ struct cs_card *card; /* Card info */
+
+ /* single open lock mechanism, only used for recording */
+ struct semaphore open_sem;
+ wait_queue_head_t open_wait;
+
+ /* file mode */
+ mode_t open_mode;
+
+ /* virtual channel number */
+ int virt;
+
+ struct dmabuf {
+ /* wave sample stuff */
+ unsigned int rate;
+ unsigned char fmt, enable;
+
+ /* hardware channel */
+ struct cs_channel *channel;
+ int pringbuf; /* Software ring slot */
+ void *pbuf; /* 4K hardware DMA buffer */
+
+ /* OSS buffer management stuff */
+ void *rawbuf;
+ dma_addr_t dma_handle;
+ unsigned buforder;
+ unsigned numfrag;
+ unsigned fragshift;
+ unsigned divisor;
+ unsigned type;
+ void *tmpbuff; /* tmp buffer for sample conversions */
+ dma_addr_t dmaaddr;
+ dma_addr_t dmaaddr_tmpbuff;
+ unsigned buforder_tmpbuff; /* Log base 2 of size in bytes.. */
+
+ /* our buffer acts like a circular ring */
+ unsigned hwptr; /* where dma last started, updated by update_ptr */
+ unsigned swptr; /* where driver last clear/filled, updated by read/write */
+ int count; /* bytes to be comsumed or been generated by dma machine */
+ unsigned total_bytes; /* total bytes dmaed by hardware */
+ unsigned blocks; /* total blocks */
+
+ unsigned error; /* number of over/underruns */
+ unsigned underrun; /* underrun pending before next write has occurred */
+ wait_queue_head_t wait; /* put process on wait queue when no more space in buffer */
+
+ /* redundant, but makes calculations easier */
+ unsigned fragsize;
+ unsigned dmasize;
+ unsigned fragsamples;
+
+ /* OSS stuff */
+ unsigned mapped:1;
+ unsigned ready:1;
+ unsigned endcleared:1;
+ unsigned SGok:1;
+ unsigned update_flag;
+ unsigned ossfragshift;
+ int ossmaxfrags;
+ unsigned subdivision;
+ } dmabuf;
+ /* Guard against mmap/write/read races */
+ struct semaphore sem;
+};
+
+struct cs_card {
+ struct cs_channel channel[2];
+ unsigned int magic;
+
+ /* We keep cs461x cards in a linked list */
+ struct cs_card *next;
+
+ /* The cs461x has a certain amount of cross channel interaction
+ so we use a single per card lock */
+ spinlock_t lock;
+
+ /* Keep AC97 sane */
+ spinlock_t ac97_lock;
+
+ /* mixer use count */
+ atomic_t mixer_use_cnt;
+
+ /* PCI device stuff */
+ struct pci_dev * pci_dev;
+ struct list_head list;
+
+ unsigned int pctl, cctl; /* Hardware DMA flag sets */
+
+ /* soundcore stuff */
+ int dev_audio;
+ int dev_midi;
+
+ /* structures for abstraction of hardware facilities, codecs, banks and channels*/
+ struct ac97_codec *ac97_codec[NR_AC97];
+ struct cs_state *states[2];
+
+ u16 ac97_features;
+
+ int amplifier; /* Amplifier control */
+ void (*amplifier_ctrl)(struct cs_card *, int);
+ void (*amp_init)(struct cs_card *);
+
+ int active; /* Active clocking */
+ void (*active_ctrl)(struct cs_card *, int);
+
+ /* hardware resources */
+ unsigned long ba0_addr;
+ unsigned long ba1_addr;
+ u32 irq;
+
+ /* mappings */
+ void __iomem *ba0;
+ union
+ {
+ struct
+ {
+ u8 __iomem *data0;
+ u8 __iomem *data1;
+ u8 __iomem *pmem;
+ u8 __iomem *reg;
+ } name;
+ u8 __iomem *idx[4];
+ } ba1;
+
+ /* Function support */
+ struct cs_channel *(*alloc_pcm_channel)(struct cs_card *);
+ struct cs_channel *(*alloc_rec_pcm_channel)(struct cs_card *);
+ void (*free_pcm_channel)(struct cs_card *, int chan);
+
+ /* /dev/midi stuff */
+ struct {
+ unsigned ird, iwr, icnt;
+ unsigned ord, owr, ocnt;
+ wait_queue_head_t open_wait;
+ wait_queue_head_t iwait;
+ wait_queue_head_t owait;
+ spinlock_t lock;
+ unsigned char ibuf[CS_MIDIINBUF];
+ unsigned char obuf[CS_MIDIOUTBUF];
+ mode_t open_mode;
+ struct semaphore open_sem;
+ } midi;
+ struct cs46xx_pm pm;
+};
+
+static int cs_open_mixdev(struct inode *inode, struct file *file);
+static int cs_release_mixdev(struct inode *inode, struct file *file);
+static int cs_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
+ unsigned long arg);
+static int cs_hardware_init(struct cs_card *card);
+static int cs46xx_powerup(struct cs_card *card, unsigned int type);
+static int cs461x_powerdown(struct cs_card *card, unsigned int type, int suspendflag);
+static void cs461x_clear_serial_FIFOs(struct cs_card *card, int type);
+static int cs46xx_suspend_tbl(struct pci_dev *pcidev, pm_message_t state);
+static int cs46xx_resume_tbl(struct pci_dev *pcidev);
+
+#ifndef CS46XX_ACPI_SUPPORT
+static int cs46xx_pm_callback(struct pm_dev *dev, pm_request_t rqst, void *data);
+#endif
+
+#if CSDEBUG
+
+/* DEBUG ROUTINES */
+
+#define SOUND_MIXER_CS_GETDBGLEVEL _SIOWR('M',120, int)
+#define SOUND_MIXER_CS_SETDBGLEVEL _SIOWR('M',121, int)
+#define SOUND_MIXER_CS_GETDBGMASK _SIOWR('M',122, int)
+#define SOUND_MIXER_CS_SETDBGMASK _SIOWR('M',123, int)
+#define SOUND_MIXER_CS_APM _SIOWR('M',124, int)
+
+static void printioctl(unsigned int x)
+{
+ unsigned int i;
+ unsigned char vidx;
+ /* these values are incorrect for the ac97 driver, fix.
+ * Index of mixtable1[] member is Device ID
+ * and must be <= SOUND_MIXER_NRDEVICES.
+ * Value of array member is index into s->mix.vol[]
+ */
+ static const unsigned char mixtable1[SOUND_MIXER_NRDEVICES] = {
+ [SOUND_MIXER_PCM] = 1, /* voice */
+ [SOUND_MIXER_LINE1] = 2, /* AUX */
+ [SOUND_MIXER_CD] = 3, /* CD */
+ [SOUND_MIXER_LINE] = 4, /* Line */
+ [SOUND_MIXER_SYNTH] = 5, /* FM */
+ [SOUND_MIXER_MIC] = 6, /* Mic */
+ [SOUND_MIXER_SPEAKER] = 7, /* Speaker */
+ [SOUND_MIXER_RECLEV] = 8, /* Recording level */
+ [SOUND_MIXER_VOLUME] = 9 /* Master Volume */
+ };
+
+ switch(x)
+ {
+ case SOUND_MIXER_CS_GETDBGMASK:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_GETDBGMASK: ") );
+ break;
+ case SOUND_MIXER_CS_GETDBGLEVEL:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_GETDBGLEVEL: ") );
+ break;
+ case SOUND_MIXER_CS_SETDBGMASK:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_SETDBGMASK: ") );
+ break;
+ case SOUND_MIXER_CS_SETDBGLEVEL:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CS_SETDBGLEVEL: ") );
+ break;
+ case OSS_GETVERSION:
+ CS_DBGOUT(CS_IOCTL, 4, printk("OSS_GETVERSION: ") );
+ break;
+ case SNDCTL_DSP_SYNC:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SYNC: ") );
+ break;
+ case SNDCTL_DSP_SETDUPLEX:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETDUPLEX: ") );
+ break;
+ case SNDCTL_DSP_GETCAPS:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETCAPS: ") );
+ break;
+ case SNDCTL_DSP_RESET:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_RESET: ") );
+ break;
+ case SNDCTL_DSP_SPEED:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SPEED: ") );
+ break;
+ case SNDCTL_DSP_STEREO:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_STEREO: ") );
+ break;
+ case SNDCTL_DSP_CHANNELS:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_CHANNELS: ") );
+ break;
+ case SNDCTL_DSP_GETFMTS:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETFMTS: ") );
+ break;
+ case SNDCTL_DSP_SETFMT:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETFMT: ") );
+ break;
+ case SNDCTL_DSP_POST:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_POST: ") );
+ break;
+ case SNDCTL_DSP_GETTRIGGER:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETTRIGGER: ") );
+ break;
+ case SNDCTL_DSP_SETTRIGGER:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETTRIGGER: ") );
+ break;
+ case SNDCTL_DSP_GETOSPACE:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOSPACE: ") );
+ break;
+ case SNDCTL_DSP_GETISPACE:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETISPACE: ") );
+ break;
+ case SNDCTL_DSP_NONBLOCK:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_NONBLOCK: ") );
+ break;
+ case SNDCTL_DSP_GETODELAY:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETODELAY: ") );
+ break;
+ case SNDCTL_DSP_GETIPTR:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETIPTR: ") );
+ break;
+ case SNDCTL_DSP_GETOPTR:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOPTR: ") );
+ break;
+ case SNDCTL_DSP_GETBLKSIZE:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETBLKSIZE: ") );
+ break;
+ case SNDCTL_DSP_SETFRAGMENT:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETFRAGMENT: ") );
+ break;
+ case SNDCTL_DSP_SUBDIVIDE:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SUBDIVIDE: ") );
+ break;
+ case SOUND_PCM_READ_RATE:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_RATE: ") );
+ break;
+ case SOUND_PCM_READ_CHANNELS:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_CHANNELS: ") );
+ break;
+ case SOUND_PCM_READ_BITS:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_BITS: ") );
+ break;
+ case SOUND_PCM_WRITE_FILTER:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_WRITE_FILTER: ") );
+ break;
+ case SNDCTL_DSP_SETSYNCRO:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETSYNCRO: ") );
+ break;
+ case SOUND_PCM_READ_FILTER:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_FILTER: ") );
+ break;
+
+ case SOUND_MIXER_PRIVATE1:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE1: ") );
+ break;
+ case SOUND_MIXER_PRIVATE2:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE2: ") );
+ break;
+ case SOUND_MIXER_PRIVATE3:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE3: ") );
+ break;
+ case SOUND_MIXER_PRIVATE4:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE4: ") );
+ break;
+ case SOUND_MIXER_PRIVATE5:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE5: ") );
+ break;
+ case SOUND_MIXER_INFO:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_INFO: ") );
+ break;
+ case SOUND_OLD_MIXER_INFO:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_OLD_MIXER_INFO: ") );
+ break;
+
+ default:
+ switch (_IOC_NR(x))
+ {
+ case SOUND_MIXER_VOLUME:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_VOLUME: ") );
+ break;
+ case SOUND_MIXER_SPEAKER:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_SPEAKER: ") );
+ break;
+ case SOUND_MIXER_RECLEV:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_RECLEV: ") );
+ break;
+ case SOUND_MIXER_MIC:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_MIC: ") );
+ break;
+ case SOUND_MIXER_SYNTH:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_SYNTH: ") );
+ break;
+ case SOUND_MIXER_RECSRC:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_RECSRC: ") );
+ break;
+ case SOUND_MIXER_DEVMASK:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_DEVMASK: ") );
+ break;
+ case SOUND_MIXER_RECMASK:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_RECMASK: ") );
+ break;
+ case SOUND_MIXER_STEREODEVS:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_STEREODEVS: ") );
+ break;
+ case SOUND_MIXER_CAPS:
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CAPS:") );
+ break;
+ default:
+ i = _IOC_NR(x);
+ if (i >= SOUND_MIXER_NRDEVICES || !(vidx = mixtable1[i]))
+ {
+ CS_DBGOUT(CS_IOCTL, 4, printk("UNKNOWN IOCTL: 0x%.8x NR=%d ",x,i) );
+ }
+ else
+ {
+ CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_IOCTL AC9x: 0x%.8x NR=%d ",
+ x,i) );
+ }
+ break;
+ }
+ }
+ CS_DBGOUT(CS_IOCTL, 4, printk("command = 0x%x IOC_NR=%d\n",x, _IOC_NR(x)) );
+}
+#endif
+
+/*
+ * common I/O routines
+ */
+
+static void cs461x_poke(struct cs_card *codec, unsigned long reg, unsigned int val)
+{
+ writel(val, codec->ba1.idx[(reg >> 16) & 3]+(reg&0xffff));
+}
+
+static unsigned int cs461x_peek(struct cs_card *codec, unsigned long reg)
+{
+ return readl(codec->ba1.idx[(reg >> 16) & 3]+(reg&0xffff));
+}
+
+static void cs461x_pokeBA0(struct cs_card *codec, unsigned long reg, unsigned int val)
+{
+ writel(val, codec->ba0+reg);
+}
+
+static unsigned int cs461x_peekBA0(struct cs_card *codec, unsigned long reg)
+{
+ return readl(codec->ba0+reg);
+}
+
+
+static u16 cs_ac97_get(struct ac97_codec *dev, u8 reg);
+static void cs_ac97_set(struct ac97_codec *dev, u8 reg, u16 data);
+
+static struct cs_channel *cs_alloc_pcm_channel(struct cs_card *card)
+{
+ if(card->channel[1].used==1)
+ return NULL;
+ card->channel[1].used=1;
+ card->channel[1].num=1;
+ return &card->channel[1];
+}
+
+static struct cs_channel *cs_alloc_rec_pcm_channel(struct cs_card *card)
+{
+ if(card->channel[0].used==1)
+ return NULL;
+ card->channel[0].used=1;
+ card->channel[0].num=0;
+ return &card->channel[0];
+}
+
+static void cs_free_pcm_channel(struct cs_card *card, int channel)
+{
+ card->channel[channel].state = NULL;
+ card->channel[channel].used=0;
+}
+
+/*
+ * setup a divisor value to help with conversion from
+ * 16bit Stereo, down to 8bit stereo/mono or 16bit mono.
+ * assign a divisor of 1 if using 16bit Stereo as that is
+ * the only format that the static image will capture.
+ */
+static void cs_set_divisor(struct dmabuf *dmabuf)
+{
+ if(dmabuf->type == CS_TYPE_DAC)
+ dmabuf->divisor = 1;
+ else if( !(dmabuf->fmt & CS_FMT_STEREO) &&
+ (dmabuf->fmt & CS_FMT_16BIT))
+ dmabuf->divisor = 2;
+ else if( (dmabuf->fmt & CS_FMT_STEREO) &&
+ !(dmabuf->fmt & CS_FMT_16BIT))
+ dmabuf->divisor = 2;
+ else if( !(dmabuf->fmt & CS_FMT_STEREO) &&
+ !(dmabuf->fmt & CS_FMT_16BIT))
+ dmabuf->divisor = 4;
+ else
+ dmabuf->divisor = 1;
+
+ CS_DBGOUT(CS_PARMS | CS_FUNCTION, 8, printk(
+ "cs46xx: cs_set_divisor()- %s %d\n",
+ (dmabuf->type == CS_TYPE_ADC) ? "ADC" : "DAC",
+ dmabuf->divisor) );
+}
+
+/*
+* mute some of the more prevalent registers to avoid popping.
+*/
+static void cs_mute(struct cs_card *card, int state)
+{
+ struct ac97_codec *dev=card->ac97_codec[0];
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO "cs46xx: cs_mute()+ %s\n",
+ (state == CS_TRUE) ? "Muting" : "UnMuting") );
+
+ if(state == CS_TRUE)
+ {
+ /*
+ * fix pops when powering up on thinkpads
+ */
+ card->pm.u32AC97_master_volume = (u32)cs_ac97_get( dev,
+ (u8)BA0_AC97_MASTER_VOLUME);
+ card->pm.u32AC97_headphone_volume = (u32)cs_ac97_get(dev,
+ (u8)BA0_AC97_HEADPHONE_VOLUME);
+ card->pm.u32AC97_master_volume_mono = (u32)cs_ac97_get(dev,
+ (u8)BA0_AC97_MASTER_VOLUME_MONO);
+ card->pm.u32AC97_pcm_out_volume = (u32)cs_ac97_get(dev,
+ (u8)BA0_AC97_PCM_OUT_VOLUME);
+
+ cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME, 0x8000);
+ cs_ac97_set(dev, (u8)BA0_AC97_HEADPHONE_VOLUME, 0x8000);
+ cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME_MONO, 0x8000);
+ cs_ac97_set(dev, (u8)BA0_AC97_PCM_OUT_VOLUME, 0x8000);
+ }
+ else
+ {
+ cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME, card->pm.u32AC97_master_volume);
+ cs_ac97_set(dev, (u8)BA0_AC97_HEADPHONE_VOLUME, card->pm.u32AC97_headphone_volume);
+ cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME_MONO, card->pm.u32AC97_master_volume_mono);
+ cs_ac97_set(dev, (u8)BA0_AC97_PCM_OUT_VOLUME, card->pm.u32AC97_pcm_out_volume);
+ }
+ CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO "cs46xx: cs_mute()-\n"));
+}
+
+/* set playback sample rate */
+static unsigned int cs_set_dac_rate(struct cs_state * state, unsigned int rate)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ unsigned int tmp1, tmp2;
+ unsigned int phiIncr;
+ unsigned int correctionPerGOF, correctionPerSec;
+ unsigned long flags;
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_dac_rate()+ %d\n",rate) );
+
+ /*
+ * Compute the values used to drive the actual sample rate conversion.
+ * The following formulas are being computed, using inline assembly
+ * since we need to use 64 bit arithmetic to compute the values:
+ *
+ * phiIncr = floor((Fs,in * 2^26) / Fs,out)
+ * correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
+ * GOF_PER_SEC)
+ * ulCorrectionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -M
+ * GOF_PER_SEC * correctionPerGOF
+ *
+ * i.e.
+ *
+ * phiIncr:other = dividend:remainder((Fs,in * 2^26) / Fs,out)
+ * correctionPerGOF:correctionPerSec =
+ * dividend:remainder(ulOther / GOF_PER_SEC)
+ */
+ tmp1 = rate << 16;
+ phiIncr = tmp1 / 48000;
+ tmp1 -= phiIncr * 48000;
+ tmp1 <<= 10;
+ phiIncr <<= 10;
+ tmp2 = tmp1 / 48000;
+ phiIncr += tmp2;
+ tmp1 -= tmp2 * 48000;
+ correctionPerGOF = tmp1 / GOF_PER_SEC;
+ tmp1 -= correctionPerGOF * GOF_PER_SEC;
+ correctionPerSec = tmp1;
+
+ /*
+ * Fill in the SampleRateConverter control block.
+ */
+
+ spin_lock_irqsave(&state->card->lock, flags);
+ cs461x_poke(state->card, BA1_PSRC,
+ ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
+ cs461x_poke(state->card, BA1_PPI, phiIncr);
+ spin_unlock_irqrestore(&state->card->lock, flags);
+ dmabuf->rate = rate;
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_dac_rate()- %d\n",rate) );
+ return rate;
+}
+
+/* set recording sample rate */
+static unsigned int cs_set_adc_rate(struct cs_state * state, unsigned int rate)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ struct cs_card *card = state->card;
+ unsigned int phiIncr, coeffIncr, tmp1, tmp2;
+ unsigned int correctionPerGOF, correctionPerSec, initialDelay;
+ unsigned int frameGroupLength, cnt;
+ unsigned long flags;
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_adc_rate()+ %d\n",rate) );
+
+ /*
+ * We can only decimate by up to a factor of 1/9th the hardware rate.
+ * Correct the value if an attempt is made to stray outside that limit.
+ */
+ if ((rate * 9) < 48000)
+ rate = 48000 / 9;
+
+ /*
+ * We can not capture at at rate greater than the Input Rate (48000).
+ * Return an error if an attempt is made to stray outside that limit.
+ */
+ if (rate > 48000)
+ rate = 48000;
+
+ /*
+ * Compute the values used to drive the actual sample rate conversion.
+ * The following formulas are being computed, using inline assembly
+ * since we need to use 64 bit arithmetic to compute the values:
+ *
+ * coeffIncr = -floor((Fs,out * 2^23) / Fs,in)
+ * phiIncr = floor((Fs,in * 2^26) / Fs,out)
+ * correctionPerGOF = floor((Fs,in * 2^26 - Fs,out * phiIncr) /
+ * GOF_PER_SEC)
+ * correctionPerSec = Fs,in * 2^26 - Fs,out * phiIncr -
+ * GOF_PER_SEC * correctionPerGOF
+ * initialDelay = ceil((24 * Fs,in) / Fs,out)
+ *
+ * i.e.
+ *
+ * coeffIncr = neg(dividend((Fs,out * 2^23) / Fs,in))
+ * phiIncr:ulOther = dividend:remainder((Fs,in * 2^26) / Fs,out)
+ * correctionPerGOF:correctionPerSec =
+ * dividend:remainder(ulOther / GOF_PER_SEC)
+ * initialDelay = dividend(((24 * Fs,in) + Fs,out - 1) / Fs,out)
+ */
+
+ tmp1 = rate << 16;
+ coeffIncr = tmp1 / 48000;
+ tmp1 -= coeffIncr * 48000;
+ tmp1 <<= 7;
+ coeffIncr <<= 7;
+ coeffIncr += tmp1 / 48000;
+ coeffIncr ^= 0xFFFFFFFF;
+ coeffIncr++;
+ tmp1 = 48000 << 16;
+ phiIncr = tmp1 / rate;
+ tmp1 -= phiIncr * rate;
+ tmp1 <<= 10;
+ phiIncr <<= 10;
+ tmp2 = tmp1 / rate;
+ phiIncr += tmp2;
+ tmp1 -= tmp2 * rate;
+ correctionPerGOF = tmp1 / GOF_PER_SEC;
+ tmp1 -= correctionPerGOF * GOF_PER_SEC;
+ correctionPerSec = tmp1;
+ initialDelay = ((48000 * 24) + rate - 1) / rate;
+
+ /*
+ * Fill in the VariDecimate control block.
+ */
+ spin_lock_irqsave(&card->lock, flags);
+ cs461x_poke(card, BA1_CSRC,
+ ((correctionPerSec << 16) & 0xFFFF0000) | (correctionPerGOF & 0xFFFF));
+ cs461x_poke(card, BA1_CCI, coeffIncr);
+ cs461x_poke(card, BA1_CD,
+ (((BA1_VARIDEC_BUF_1 + (initialDelay << 2)) << 16) & 0xFFFF0000) | 0x80);
+ cs461x_poke(card, BA1_CPI, phiIncr);
+ spin_unlock_irqrestore(&card->lock, flags);
+
+ /*
+ * Figure out the frame group length for the write back task. Basically,
+ * this is just the factors of 24000 (2^6*3*5^3) that are not present in
+ * the output sample rate.
+ */
+ frameGroupLength = 1;
+ for (cnt = 2; cnt <= 64; cnt *= 2) {
+ if (((rate / cnt) * cnt) != rate)
+ frameGroupLength *= 2;
+ }
+ if (((rate / 3) * 3) != rate) {
+ frameGroupLength *= 3;
+ }
+ for (cnt = 5; cnt <= 125; cnt *= 5) {
+ if (((rate / cnt) * cnt) != rate)
+ frameGroupLength *= 5;
+ }
+
+ /*
+ * Fill in the WriteBack control block.
+ */
+ spin_lock_irqsave(&card->lock, flags);
+ cs461x_poke(card, BA1_CFG1, frameGroupLength);
+ cs461x_poke(card, BA1_CFG2, (0x00800000 | frameGroupLength));
+ cs461x_poke(card, BA1_CCST, 0x0000FFFF);
+ cs461x_poke(card, BA1_CSPB, ((65536 * rate) / 24000));
+ cs461x_poke(card, (BA1_CSPB + 4), 0x0000FFFF);
+ spin_unlock_irqrestore(&card->lock, flags);
+ dmabuf->rate = rate;
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_set_adc_rate()- %d\n",rate) );
+ return rate;
+}
+
+/* prepare channel attributes for playback */
+static void cs_play_setup(struct cs_state *state)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ struct cs_card *card = state->card;
+ unsigned int tmp, Count, playFormat;
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_play_setup()+\n") );
+ cs461x_poke(card, BA1_PVOL, 0x80008000);
+ if(!dmabuf->SGok)
+ cs461x_poke(card, BA1_PBA, virt_to_bus(dmabuf->pbuf));
+
+ Count = 4;
+ playFormat=cs461x_peek(card, BA1_PFIE);
+ if ((dmabuf->fmt & CS_FMT_STEREO)) {
+ playFormat &= ~DMA_RQ_C2_AC_MONO_TO_STEREO;
+ Count *= 2;
+ }
+ else
+ playFormat |= DMA_RQ_C2_AC_MONO_TO_STEREO;
+
+ if ((dmabuf->fmt & CS_FMT_16BIT)) {
+ playFormat &= ~(DMA_RQ_C2_AC_8_TO_16_BIT
+ | DMA_RQ_C2_AC_SIGNED_CONVERT);
+ Count *= 2;
+ }
+ else
+ playFormat |= (DMA_RQ_C2_AC_8_TO_16_BIT
+ | DMA_RQ_C2_AC_SIGNED_CONVERT);
+
+ cs461x_poke(card, BA1_PFIE, playFormat);
+
+ tmp = cs461x_peek(card, BA1_PDTC);
+ tmp &= 0xfffffe00;
+ cs461x_poke(card, BA1_PDTC, tmp | --Count);
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_play_setup()-\n") );
+
+}
+
+static struct InitStruct
+{
+ u32 off;
+ u32 val;
+} InitArray[] = { {0x00000040, 0x3fc0000f},
+ {0x0000004c, 0x04800000},
+
+ {0x000000b3, 0x00000780},
+ {0x000000b7, 0x00000000},
+ {0x000000bc, 0x07800000},
+
+ {0x000000cd, 0x00800000},
+ };
+
+/*
+ * "SetCaptureSPValues()" -- Initialize record task values before each
+ * capture startup.
+ */
+static void SetCaptureSPValues(struct cs_card *card)
+{
+ unsigned i, offset;
+ CS_DBGOUT(CS_FUNCTION, 8, printk("cs46xx: SetCaptureSPValues()+\n") );
+ for(i=0; i<sizeof(InitArray)/sizeof(struct InitStruct); i++)
+ {
+ offset = InitArray[i].off*4; /* 8bit to 32bit offset value */
+ cs461x_poke(card, offset, InitArray[i].val );
+ }
+ CS_DBGOUT(CS_FUNCTION, 8, printk("cs46xx: SetCaptureSPValues()-\n") );
+}
+
+/* prepare channel attributes for recording */
+static void cs_rec_setup(struct cs_state *state)
+{
+ struct cs_card *card = state->card;
+ struct dmabuf *dmabuf = &state->dmabuf;
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_rec_setup()+\n") );
+
+ SetCaptureSPValues(card);
+
+ /*
+ * set the attenuation to 0dB
+ */
+ cs461x_poke(card, BA1_CVOL, 0x80008000);
+
+ /*
+ * set the physical address of the capture buffer into the SP
+ */
+ cs461x_poke(card, BA1_CBA, virt_to_bus(dmabuf->rawbuf));
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_rec_setup()-\n") );
+}
+
+
+/* get current playback/recording dma buffer pointer (byte offset from LBA),
+ called with spinlock held! */
+
+static inline unsigned cs_get_dma_addr(struct cs_state *state)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ u32 offset;
+
+ if ( (!(dmabuf->enable & DAC_RUNNING)) &&
+ (!(dmabuf->enable & ADC_RUNNING) ) )
+ {
+ CS_DBGOUT(CS_ERROR, 2, printk(
+ "cs46xx: ERROR cs_get_dma_addr(): not enabled \n") );
+ return 0;
+ }
+
+ /*
+ * granularity is byte boundary, good part.
+ */
+ if(dmabuf->enable & DAC_RUNNING)
+ {
+ offset = cs461x_peek(state->card, BA1_PBA);
+ }
+ else /* ADC_RUNNING must be set */
+ {
+ offset = cs461x_peek(state->card, BA1_CBA);
+ }
+ CS_DBGOUT(CS_PARMS | CS_FUNCTION, 9,
+ printk("cs46xx: cs_get_dma_addr() %d\n",offset) );
+ offset = (u32)bus_to_virt((unsigned long)offset) - (u32)dmabuf->rawbuf;
+ CS_DBGOUT(CS_PARMS | CS_FUNCTION, 8,
+ printk("cs46xx: cs_get_dma_addr()- %d\n",offset) );
+ return offset;
+}
+
+static void resync_dma_ptrs(struct cs_state *state)
+{
+ struct dmabuf *dmabuf;
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: resync_dma_ptrs()+ \n") );
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ dmabuf->hwptr=dmabuf->swptr = 0;
+ dmabuf->pringbuf = 0;
+ }
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: resync_dma_ptrs()- \n") );
+}
+
+/* Stop recording (lock held) */
+static inline void __stop_adc(struct cs_state *state)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ struct cs_card *card = state->card;
+ unsigned int tmp;
+
+ dmabuf->enable &= ~ADC_RUNNING;
+
+ tmp = cs461x_peek(card, BA1_CCTL);
+ tmp &= 0xFFFF0000;
+ cs461x_poke(card, BA1_CCTL, tmp );
+}
+
+static void stop_adc(struct cs_state *state)
+{
+ unsigned long flags;
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: stop_adc()+ \n") );
+ spin_lock_irqsave(&state->card->lock, flags);
+ __stop_adc(state);
+ spin_unlock_irqrestore(&state->card->lock, flags);
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: stop_adc()- \n") );
+}
+
+static void start_adc(struct cs_state *state)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ struct cs_card *card = state->card;
+ unsigned long flags;
+ unsigned int tmp;
+
+ spin_lock_irqsave(&card->lock, flags);
+ if (!(dmabuf->enable & ADC_RUNNING) &&
+ ((dmabuf->mapped || dmabuf->count < (signed)dmabuf->dmasize)
+ && dmabuf->ready) &&
+ ((card->pm.flags & CS46XX_PM_IDLE) ||
+ (card->pm.flags & CS46XX_PM_RESUMED)) )
+ {
+ dmabuf->enable |= ADC_RUNNING;
+ cs_set_divisor(dmabuf);
+ tmp = cs461x_peek(card, BA1_CCTL);
+ tmp &= 0xFFFF0000;
+ tmp |= card->cctl;
+ CS_DBGOUT(CS_FUNCTION, 2, printk(
+ "cs46xx: start_adc() poke 0x%x \n",tmp) );
+ cs461x_poke(card, BA1_CCTL, tmp);
+ }
+ spin_unlock_irqrestore(&card->lock, flags);
+}
+
+/* stop playback (lock held) */
+static inline void __stop_dac(struct cs_state *state)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ struct cs_card *card = state->card;
+ unsigned int tmp;
+
+ dmabuf->enable &= ~DAC_RUNNING;
+
+ tmp=cs461x_peek(card, BA1_PCTL);
+ tmp&=0xFFFF;
+ cs461x_poke(card, BA1_PCTL, tmp);
+}
+
+static void stop_dac(struct cs_state *state)
+{
+ unsigned long flags;
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: stop_dac()+ \n") );
+ spin_lock_irqsave(&state->card->lock, flags);
+ __stop_dac(state);
+ spin_unlock_irqrestore(&state->card->lock, flags);
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: stop_dac()- \n") );
+}
+
+static void start_dac(struct cs_state *state)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ struct cs_card *card = state->card;
+ unsigned long flags;
+ int tmp;
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: start_dac()+ \n") );
+ spin_lock_irqsave(&card->lock, flags);
+ if (!(dmabuf->enable & DAC_RUNNING) &&
+ ((dmabuf->mapped || dmabuf->count > 0) && dmabuf->ready) &&
+ ((card->pm.flags & CS46XX_PM_IDLE) ||
+ (card->pm.flags & CS46XX_PM_RESUMED)) )
+ {
+ dmabuf->enable |= DAC_RUNNING;
+ tmp = cs461x_peek(card, BA1_PCTL);
+ tmp &= 0xFFFF;
+ tmp |= card->pctl;
+ CS_DBGOUT(CS_PARMS, 6, printk(
+ "cs46xx: start_dac() poke card=%p tmp=0x%.08x addr=%p \n",
+ card, (unsigned)tmp,
+ card->ba1.idx[(BA1_PCTL >> 16) & 3]+(BA1_PCTL&0xffff) ) );
+ cs461x_poke(card, BA1_PCTL, tmp);
+ }
+ spin_unlock_irqrestore(&card->lock, flags);
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: start_dac()- \n") );
+}
+
+#define DMABUF_MINORDER 1
+
+/*
+ * allocate DMA buffer, playback and recording buffers are separate.
+ */
+static int alloc_dmabuf(struct cs_state *state)
+{
+
+ struct cs_card *card=state->card;
+ struct dmabuf *dmabuf = &state->dmabuf;
+ void *rawbuf = NULL;
+ void *tmpbuff = NULL;
+ int order;
+ struct page *map, *mapend;
+ unsigned long df;
+
+ dmabuf->ready = dmabuf->mapped = 0;
+ dmabuf->SGok = 0;
+/*
+* check for order within limits, but do not overwrite value.
+*/
+ if((defaultorder > 1) && (defaultorder < 12))
+ df = defaultorder;
+ else
+ df = 2;
+
+ for (order = df; order >= DMABUF_MINORDER; order--)
+ if ( (rawbuf = (void *) pci_alloc_consistent(
+ card->pci_dev, PAGE_SIZE << order, &dmabuf->dmaaddr)))
+ break;
+ if (!rawbuf) {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
+ "cs46xx: alloc_dmabuf(): unable to allocate rawbuf\n"));
+ return -ENOMEM;
+ }
+ dmabuf->buforder = order;
+ dmabuf->rawbuf = rawbuf;
+ // Now mark the pages as reserved; otherwise the
+ // remap_pfn_range() in cs46xx_mmap doesn't work.
+ // 1. get index to last page in mem_map array for rawbuf.
+ mapend = virt_to_page(dmabuf->rawbuf +
+ (PAGE_SIZE << dmabuf->buforder) - 1);
+
+ // 2. mark each physical page in range as 'reserved'.
+ for (map = virt_to_page(dmabuf->rawbuf); map <= mapend; map++)
+ cs4x_mem_map_reserve(map);
+
+ CS_DBGOUT(CS_PARMS, 9, printk("cs46xx: alloc_dmabuf(): allocated %ld (order = %d) bytes at %p\n",
+ PAGE_SIZE << order, order, rawbuf) );
+
+/*
+* only allocate the conversion buffer for the ADC
+*/
+ if(dmabuf->type == CS_TYPE_DAC)
+ {
+ dmabuf->tmpbuff = NULL;
+ dmabuf->buforder_tmpbuff = 0;
+ return 0;
+ }
+/*
+ * now the temp buffer for 16/8 conversions
+ */
+
+ tmpbuff = (void *) pci_alloc_consistent(
+ card->pci_dev, PAGE_SIZE << order, &dmabuf->dmaaddr_tmpbuff);
+
+ if (!tmpbuff)
+ return -ENOMEM;
+ CS_DBGOUT(CS_PARMS, 9, printk("cs46xx: allocated %ld (order = %d) bytes at %p\n",
+ PAGE_SIZE << order, order, tmpbuff) );
+
+ dmabuf->tmpbuff = tmpbuff;
+ dmabuf->buforder_tmpbuff = order;
+
+ // Now mark the pages as reserved; otherwise the
+ // remap_pfn_range() in cs46xx_mmap doesn't work.
+ // 1. get index to last page in mem_map array for rawbuf.
+ mapend = virt_to_page(dmabuf->tmpbuff +
+ (PAGE_SIZE << dmabuf->buforder_tmpbuff) - 1);
+
+ // 2. mark each physical page in range as 'reserved'.
+ for (map = virt_to_page(dmabuf->tmpbuff); map <= mapend; map++)
+ cs4x_mem_map_reserve(map);
+ return 0;
+}
+
+/* free DMA buffer */
+static void dealloc_dmabuf(struct cs_state *state)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ struct page *map, *mapend;
+
+ if (dmabuf->rawbuf) {
+ // Undo prog_dmabuf()'s marking the pages as reserved
+ mapend = virt_to_page(dmabuf->rawbuf +
+ (PAGE_SIZE << dmabuf->buforder) - 1);
+ for (map = virt_to_page(dmabuf->rawbuf); map <= mapend; map++)
+ cs4x_mem_map_unreserve(map);
+ free_dmabuf(state->card, dmabuf);
+ }
+
+ if (dmabuf->tmpbuff) {
+ // Undo prog_dmabuf()'s marking the pages as reserved
+ mapend = virt_to_page(dmabuf->tmpbuff +
+ (PAGE_SIZE << dmabuf->buforder_tmpbuff) - 1);
+ for (map = virt_to_page(dmabuf->tmpbuff); map <= mapend; map++)
+ cs4x_mem_map_unreserve(map);
+ free_dmabuf2(state->card, dmabuf);
+ }
+
+ dmabuf->rawbuf = NULL;
+ dmabuf->tmpbuff = NULL;
+ dmabuf->mapped = dmabuf->ready = 0;
+ dmabuf->SGok = 0;
+}
+
+static int __prog_dmabuf(struct cs_state *state)
+{
+ struct dmabuf *dmabuf = &state->dmabuf;
+ unsigned long flags;
+ unsigned long allocated_pages, allocated_bytes;
+ unsigned long tmp1, tmp2, fmt=0;
+ unsigned long *ptmp = (unsigned long *) dmabuf->pbuf;
+ unsigned long SGarray[9], nSGpages=0;
+ int ret;
+
+ CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf()+ \n"));
+/*
+ * check for CAPTURE and use only non-sg for initial release
+ */
+ if(dmabuf->type == CS_TYPE_ADC)
+ {
+ CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf() ADC\n"));
+ /*
+ * add in non-sg support for capture.
+ */
+ spin_lock_irqsave(&state->card->lock, flags);
+ /* add code to reset the rawbuf memory. TRW */
+ resync_dma_ptrs(state);
+ dmabuf->total_bytes = dmabuf->blocks = 0;
+ dmabuf->count = dmabuf->error = dmabuf->underrun = 0;
+
+ dmabuf->SGok = 0;
+
+ spin_unlock_irqrestore(&state->card->lock, flags);
+
+ /* allocate DMA buffer if not allocated yet */
+ if (!dmabuf->rawbuf || !dmabuf->tmpbuff)
+ if ((ret = alloc_dmabuf(state)))
+ return ret;
+ /*
+ * static image only supports 16Bit signed, stereo - hard code fmt
+ */
+ fmt = CS_FMT_16BIT | CS_FMT_STEREO;
+
+ dmabuf->numfrag = 2;
+ dmabuf->fragsize = 2048;
+ dmabuf->fragsamples = 2048 >> sample_shift[fmt];
+ dmabuf->dmasize = 4096;
+ dmabuf->fragshift = 11;
+
+ memset(dmabuf->rawbuf, (fmt & CS_FMT_16BIT) ? 0 : 0x80,
+ dmabuf->dmasize);
+ memset(dmabuf->tmpbuff, (fmt & CS_FMT_16BIT) ? 0 : 0x80,
+ PAGE_SIZE<<dmabuf->buforder_tmpbuff);
+
+ /*
+ * Now set up the ring
+ */
+
+ spin_lock_irqsave(&state->card->lock, flags);
+ cs_rec_setup(state);
+ spin_unlock_irqrestore(&state->card->lock, flags);
+
+ /* set the ready flag for the dma buffer */
+ dmabuf->ready = 1;
+
+ CS_DBGOUT(CS_PARMS, 4, printk(
+ "cs46xx: prog_dmabuf(): CAPTURE rate=%d fmt=0x%x numfrag=%d "
+ "fragsize=%d dmasize=%d\n",
+ dmabuf->rate, dmabuf->fmt, dmabuf->numfrag,
+ dmabuf->fragsize, dmabuf->dmasize) );
+
+ CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf()- 0 \n"));
+ return 0;
+ }
+ else if (dmabuf->type == CS_TYPE_DAC)
+ {
+ /*
+ * Must be DAC
+ */
+ CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf() DAC\n"));
+ spin_lock_irqsave(&state->card->lock, flags);
+ resync_dma_ptrs(state);
+ dmabuf->total_bytes = dmabuf->blocks = 0;
+ dmabuf->count = dmabuf->error = dmabuf->underrun = 0;
+
+ dmabuf->SGok = 0;
+
+ spin_unlock_irqrestore(&state->card->lock, flags);
+
+ /* allocate DMA buffer if not allocated yet */
+ if (!dmabuf->rawbuf)
+ if ((ret = alloc_dmabuf(state)))
+ return ret;
+
+ allocated_pages = 1 << dmabuf->buforder;
+ allocated_bytes = allocated_pages*PAGE_SIZE;
+
+ if(allocated_pages < 2)
+ {
+ CS_DBGOUT(CS_FUNCTION, 4, printk(
+ "cs46xx: prog_dmabuf() Error: allocated_pages too small (%d)\n",
+ (unsigned)allocated_pages));
+ return -ENOMEM;
+ }
+
+ /* Use all the pages allocated, fragsize 4k. */
+ /* Use 'pbuf' for S/G page map table. */
+ dmabuf->SGok = 1; /* Use S/G. */
+
+ nSGpages = allocated_bytes/4096; /* S/G pages always 4k. */
+
+ /* Set up S/G variables. */
+ *ptmp = virt_to_bus(dmabuf->rawbuf);
+ *(ptmp+1) = 0x00000008;
+ for(tmp1= 1; tmp1 < nSGpages; tmp1++) {
+ *(ptmp+2*tmp1) = virt_to_bus( (dmabuf->rawbuf)+4096*tmp1);
+ if( tmp1 == nSGpages-1)
+ tmp2 = 0xbfff0000;
+ else
+ tmp2 = 0x80000000+8*(tmp1+1);
+ *(ptmp+2*tmp1+1) = tmp2;
+ }
+ SGarray[0] = 0x82c0200d;
+ SGarray[1] = 0xffff0000;
+ SGarray[2] = *ptmp;
+ SGarray[3] = 0x00010600;
+ SGarray[4] = *(ptmp+2);
+ SGarray[5] = 0x80000010;
+ SGarray[6] = *ptmp;
+ SGarray[7] = *(ptmp+2);
+ SGarray[8] = (virt_to_bus(dmabuf->pbuf) & 0xffff000) | 0x10;
+
+ if (dmabuf->SGok) {
+ dmabuf->numfrag = nSGpages;
+ dmabuf->fragsize = 4096;
+ dmabuf->fragsamples = 4096 >> sample_shift[dmabuf->fmt];
+ dmabuf->fragshift = 12;
+ dmabuf->dmasize = dmabuf->numfrag*4096;
+ }
+ else {
+ SGarray[0] = 0xf2c0000f;
+ SGarray[1] = 0x00000200;
+ SGarray[2] = 0;
+ SGarray[3] = 0x00010600;
+ SGarray[4]=SGarray[5]=SGarray[6]=SGarray[7]=SGarray[8] = 0;
+ dmabuf->numfrag = 2;
+ dmabuf->fragsize = 2048;
+ dmabuf->fragsamples = 2048 >> sample_shift[dmabuf->fmt];
+ dmabuf->dmasize = 4096;
+ dmabuf->fragshift = 11;
+ }
+ for(tmp1 = 0; tmp1 < sizeof(SGarray)/4; tmp1++)
+ cs461x_poke( state->card, BA1_PDTC+tmp1*4, SGarray[tmp1]);
+
+ memset(dmabuf->rawbuf, (dmabuf->fmt & CS_FMT_16BIT) ? 0 : 0x80,
+ dmabuf->dmasize);
+
+ /*
+ * Now set up the ring
+ */
+
+ spin_lock_irqsave(&state->card->lock, flags);
+ cs_play_setup(state);
+ spin_unlock_irqrestore(&state->card->lock, flags);
+
+ /* set the ready flag for the dma buffer */
+ dmabuf->ready = 1;
+
+ CS_DBGOUT(CS_PARMS, 4, printk(
+ "cs46xx: prog_dmabuf(): PLAYBACK rate=%d fmt=0x%x numfrag=%d "
+ "fragsize=%d dmasize=%d\n",
+ dmabuf->rate, dmabuf->fmt, dmabuf->numfrag,
+ dmabuf->fragsize, dmabuf->dmasize) );
+
+ CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf()- \n"));
+ return 0;
+ }
+ else
+ {
+ CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: prog_dmabuf()- Invalid Type %d\n",
+ dmabuf->type));
+ }
+ return 1;
+}
+
+static int prog_dmabuf(struct cs_state *state)
+{
+ int ret;
+
+ down(&state->sem);
+ ret = __prog_dmabuf(state);
+ up(&state->sem);
+
+ return ret;
+}
+
+static void cs_clear_tail(struct cs_state *state)
+{
+}
+
+static int drain_dac(struct cs_state *state, int nonblock)
+{
+ DECLARE_WAITQUEUE(wait, current);
+ struct dmabuf *dmabuf = &state->dmabuf;
+ struct cs_card *card=state->card;
+ unsigned long flags;
+ unsigned long tmo;
+ int count;
+
+ CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: drain_dac()+ \n"));
+ if (dmabuf->mapped || !dmabuf->ready)
+ {
+ CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: drain_dac()- 0, not ready\n"));
+ return 0;
+ }
+
+ add_wait_queue(&dmabuf->wait, &wait);
+ for (;;) {
+ /* It seems that we have to set the current state to TASK_INTERRUPTIBLE
+ every time to make the process really go to sleep */
+ current->state = TASK_INTERRUPTIBLE;
+
+ spin_lock_irqsave(&state->card->lock, flags);
+ count = dmabuf->count;
+ spin_unlock_irqrestore(&state->card->lock, flags);
+
+ if (count <= 0)
+ break;
+
+ if (signal_pending(current))
+ break;
+
+ if (nonblock) {
+ remove_wait_queue(&dmabuf->wait, &wait);
+ current->state = TASK_RUNNING;
+ return -EBUSY;
+ }
+
+ tmo = (dmabuf->dmasize * HZ) / dmabuf->rate;
+ tmo >>= sample_shift[dmabuf->fmt];
+ tmo += (2048*HZ)/dmabuf->rate;
+
+ if (!schedule_timeout(tmo ? tmo : 1) && tmo){
+ printk(KERN_ERR "cs46xx: drain_dac, dma timeout? %d\n", count);
+ break;
+ }
+ }
+ remove_wait_queue(&dmabuf->wait, &wait);
+ current->state = TASK_RUNNING;
+ if (signal_pending(current))
+ {
+ CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: drain_dac()- -ERESTARTSYS\n"));
+ /*
+ * set to silence and let that clear the fifos.
+ */
+ cs461x_clear_serial_FIFOs(card, CS_TYPE_DAC);
+ return -ERESTARTSYS;
+ }
+
+ CS_DBGOUT(CS_FUNCTION, 4, printk("cs46xx: drain_dac()- 0\n"));
+ return 0;
+}
+
+
+/* update buffer manangement pointers, especially, dmabuf->count and dmabuf->hwptr */
+static void cs_update_ptr(struct cs_card *card, int wake)
+{
+ struct cs_state *state;
+ struct dmabuf *dmabuf;
+ unsigned hwptr;
+ int diff;
+
+ /* error handling and process wake up for ADC */
+ state = card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ if (dmabuf->enable & ADC_RUNNING) {
+ /* update hardware pointer */
+ hwptr = cs_get_dma_addr(state);
+
+ diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
+ CS_DBGOUT(CS_PARMS, 9, printk(
+ "cs46xx: cs_update_ptr()+ ADC hwptr=%d diff=%d\n",
+ hwptr,diff) );
+ dmabuf->hwptr = hwptr;
+ dmabuf->total_bytes += diff;
+ dmabuf->count += diff;
+ if (dmabuf->count > dmabuf->dmasize)
+ dmabuf->count = dmabuf->dmasize;
+
+ if(dmabuf->mapped)
+ {
+ if (wake && dmabuf->count >= (signed)dmabuf->fragsize)
+ wake_up(&dmabuf->wait);
+ } else
+ {
+ if (wake && dmabuf->count > 0)
+ wake_up(&dmabuf->wait);
+ }
+ }
+ }
+
+/*
+ * Now the DAC
+ */
+ state = card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ /* error handling and process wake up for DAC */
+ if (dmabuf->enable & DAC_RUNNING) {
+ /* update hardware pointer */
+ hwptr = cs_get_dma_addr(state);
+
+ diff = (dmabuf->dmasize + hwptr - dmabuf->hwptr) % dmabuf->dmasize;
+ CS_DBGOUT(CS_PARMS, 9, printk(
+ "cs46xx: cs_update_ptr()+ DAC hwptr=%d diff=%d\n",
+ hwptr,diff) );
+ dmabuf->hwptr = hwptr;
+ dmabuf->total_bytes += diff;
+ if (dmabuf->mapped) {
+ dmabuf->count += diff;
+ if (wake && dmabuf->count >= (signed)dmabuf->fragsize)
+ wake_up(&dmabuf->wait);
+ /*
+ * other drivers use fragsize, but don't see any sense
+ * in that, since dmasize is the buffer asked for
+ * via mmap.
+ */
+ if( dmabuf->count > dmabuf->dmasize)
+ dmabuf->count &= dmabuf->dmasize-1;
+ } else {
+ dmabuf->count -= diff;
+ /*
+ * backfill with silence and clear out the last
+ * "diff" number of bytes.
+ */
+ if(hwptr >= diff)
+ {
+ memset(dmabuf->rawbuf + hwptr - diff,
+ (dmabuf->fmt & CS_FMT_16BIT) ? 0 : 0x80, diff);
+ }
+ else
+ {
+ memset(dmabuf->rawbuf,
+ (dmabuf->fmt & CS_FMT_16BIT) ? 0 : 0x80,
+ (unsigned)hwptr);
+ memset((char *)dmabuf->rawbuf +
+ dmabuf->dmasize + hwptr - diff,
+ (dmabuf->fmt & CS_FMT_16BIT) ? 0 : 0x80,
+ diff - hwptr);
+ }
+
+ if (dmabuf->count < 0 || dmabuf->count > dmabuf->dmasize) {
+ CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO
+ "cs46xx: ERROR DAC count<0 or count > dmasize (%d)\n",
+ dmabuf->count));
+ /*
+ * buffer underrun or buffer overrun, reset the
+ * count of bytes written back to 0.
+ */
+ if(dmabuf->count < 0)
+ dmabuf->underrun=1;
+ dmabuf->count = 0;
+ dmabuf->error++;
+ }
+ if (wake && dmabuf->count < (signed)dmabuf->dmasize/2)
+ wake_up(&dmabuf->wait);
+ }
+ }
+ }
+}
+
+
+/* hold spinlock for the following! */
+static void cs_handle_midi(struct cs_card *card)
+{
+ unsigned char ch;
+ int wake;
+ unsigned temp1;
+
+ wake = 0;
+ while (!(cs461x_peekBA0(card, BA0_MIDSR) & MIDSR_RBE)) {
+ ch = cs461x_peekBA0(card, BA0_MIDRP);
+ if (card->midi.icnt < CS_MIDIINBUF) {
+ card->midi.ibuf[card->midi.iwr] = ch;
+ card->midi.iwr = (card->midi.iwr + 1) % CS_MIDIINBUF;
+ card->midi.icnt++;
+ }
+ wake = 1;
+ }
+ if (wake)
+ wake_up(&card->midi.iwait);
+ wake = 0;
+ while (!(cs461x_peekBA0(card, BA0_MIDSR) & MIDSR_TBF) && card->midi.ocnt > 0) {
+ temp1 = ( card->midi.obuf[card->midi.ord] ) & 0x000000ff;
+ cs461x_pokeBA0(card, BA0_MIDWP,temp1);
+ card->midi.ord = (card->midi.ord + 1) % CS_MIDIOUTBUF;
+ card->midi.ocnt--;
+ if (card->midi.ocnt < CS_MIDIOUTBUF-16)
+ wake = 1;
+ }
+ if (wake)
+ wake_up(&card->midi.owait);
+}
+
+static irqreturn_t cs_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct cs_card *card = (struct cs_card *)dev_id;
+ /* Single channel card */
+ struct cs_state *recstate = card->channel[0].state;
+ struct cs_state *playstate = card->channel[1].state;
+ u32 status;
+
+ CS_DBGOUT(CS_INTERRUPT, 9, printk("cs46xx: cs_interrupt()+ \n"));
+
+ spin_lock(&card->lock);
+
+ status = cs461x_peekBA0(card, BA0_HISR);
+
+ if ((status & 0x7fffffff) == 0)
+ {
+ cs461x_pokeBA0(card, BA0_HICR, HICR_CHGM|HICR_IEV);
+ spin_unlock(&card->lock);
+ return IRQ_HANDLED; /* Might be IRQ_NONE.. */
+ }
+
+ /*
+ * check for playback or capture interrupt only
+ */
+ if( ((status & HISR_VC0) && playstate && playstate->dmabuf.ready) ||
+ (((status & HISR_VC1) && recstate && recstate->dmabuf.ready)) )
+ {
+ CS_DBGOUT(CS_INTERRUPT, 8, printk(
+ "cs46xx: cs_interrupt() interrupt bit(s) set (0x%x)\n",status));
+ cs_update_ptr(card, CS_TRUE);
+ }
+
+ if( status & HISR_MIDI )
+ cs_handle_midi(card);
+
+ /* clear 'em */
+ cs461x_pokeBA0(card, BA0_HICR, HICR_CHGM|HICR_IEV);
+ spin_unlock(&card->lock);
+ CS_DBGOUT(CS_INTERRUPT, 9, printk("cs46xx: cs_interrupt()- \n"));
+ return IRQ_HANDLED;
+}
+
+
+/**********************************************************************/
+
+static ssize_t cs_midi_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct cs_card *card = (struct cs_card *)file->private_data;
+ ssize_t ret;
+ unsigned long flags;
+ unsigned ptr;
+ int cnt;
+
+ if (!access_ok(VERIFY_WRITE, buffer, count))
+ return -EFAULT;
+ ret = 0;
+ while (count > 0) {
+ spin_lock_irqsave(&card->lock, flags);
+ ptr = card->midi.ird;
+ cnt = CS_MIDIINBUF - ptr;
+ if (card->midi.icnt < cnt)
+ cnt = card->midi.icnt;
+ spin_unlock_irqrestore(&card->lock, flags);
+ if (cnt > count)
+ cnt = count;
+ if (cnt <= 0) {
+ if (file->f_flags & O_NONBLOCK)
+ return ret ? ret : -EAGAIN;
+ interruptible_sleep_on(&card->midi.iwait);
+ if (signal_pending(current))
+ return ret ? ret : -ERESTARTSYS;
+ continue;
+ }
+ if (copy_to_user(buffer, card->midi.ibuf + ptr, cnt))
+ return ret ? ret : -EFAULT;
+ ptr = (ptr + cnt) % CS_MIDIINBUF;
+ spin_lock_irqsave(&card->lock, flags);
+ card->midi.ird = ptr;
+ card->midi.icnt -= cnt;
+ spin_unlock_irqrestore(&card->lock, flags);
+ count -= cnt;
+ buffer += cnt;
+ ret += cnt;
+ }
+ return ret;
+}
+
+
+static ssize_t cs_midi_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct cs_card *card = (struct cs_card *)file->private_data;
+ ssize_t ret;
+ unsigned long flags;
+ unsigned ptr;
+ int cnt;
+
+ if (!access_ok(VERIFY_READ, buffer, count))
+ return -EFAULT;
+ ret = 0;
+ while (count > 0) {
+ spin_lock_irqsave(&card->lock, flags);
+ ptr = card->midi.owr;
+ cnt = CS_MIDIOUTBUF - ptr;
+ if (card->midi.ocnt + cnt > CS_MIDIOUTBUF)
+ cnt = CS_MIDIOUTBUF - card->midi.ocnt;
+ if (cnt <= 0)
+ cs_handle_midi(card);
+ spin_unlock_irqrestore(&card->lock, flags);
+ if (cnt > count)
+ cnt = count;
+ if (cnt <= 0) {
+ if (file->f_flags & O_NONBLOCK)
+ return ret ? ret : -EAGAIN;
+ interruptible_sleep_on(&card->midi.owait);
+ if (signal_pending(current))
+ return ret ? ret : -ERESTARTSYS;
+ continue;
+ }
+ if (copy_from_user(card->midi.obuf + ptr, buffer, cnt))
+ return ret ? ret : -EFAULT;
+ ptr = (ptr + cnt) % CS_MIDIOUTBUF;
+ spin_lock_irqsave(&card->lock, flags);
+ card->midi.owr = ptr;
+ card->midi.ocnt += cnt;
+ spin_unlock_irqrestore(&card->lock, flags);
+ count -= cnt;
+ buffer += cnt;
+ ret += cnt;
+ spin_lock_irqsave(&card->lock, flags);
+ cs_handle_midi(card);
+ spin_unlock_irqrestore(&card->lock, flags);
+ }
+ return ret;
+}
+
+
+static unsigned int cs_midi_poll(struct file *file, struct poll_table_struct *wait)
+{
+ struct cs_card *card = (struct cs_card *)file->private_data;
+ unsigned long flags;
+ unsigned int mask = 0;
+
+ if (file->f_flags & FMODE_WRITE)
+ poll_wait(file, &card->midi.owait, wait);
+ if (file->f_flags & FMODE_READ)
+ poll_wait(file, &card->midi.iwait, wait);
+ spin_lock_irqsave(&card->lock, flags);
+ if (file->f_flags & FMODE_READ) {
+ if (card->midi.icnt > 0)
+ mask |= POLLIN | POLLRDNORM;
+ }
+ if (file->f_flags & FMODE_WRITE) {
+ if (card->midi.ocnt < CS_MIDIOUTBUF)
+ mask |= POLLOUT | POLLWRNORM;
+ }
+ spin_unlock_irqrestore(&card->lock, flags);
+ return mask;
+}
+
+
+static int cs_midi_open(struct inode *inode, struct file *file)
+{
+ unsigned int minor = iminor(inode);
+ struct cs_card *card=NULL;
+ unsigned long flags;
+ struct list_head *entry;
+
+ list_for_each(entry, &cs46xx_devs)
+ {
+ card = list_entry(entry, struct cs_card, list);
+ if (card->dev_midi == minor)
+ break;
+ }
+
+ if (entry == &cs46xx_devs)
+ return -ENODEV;
+ if (!card)
+ {
+ CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO
+ "cs46xx: cs46xx_midi_open(): Error - unable to find card struct\n"));
+ return -ENODEV;
+ }
+
+ file->private_data = card;
+ /* wait for device to become free */
+ down(&card->midi.open_sem);
+ while (card->midi.open_mode & file->f_mode) {
+ if (file->f_flags & O_NONBLOCK) {
+ up(&card->midi.open_sem);
+ return -EBUSY;
+ }
+ up(&card->midi.open_sem);
+ interruptible_sleep_on(&card->midi.open_wait);
+ if (signal_pending(current))
+ return -ERESTARTSYS;
+ down(&card->midi.open_sem);
+ }
+ spin_lock_irqsave(&card->midi.lock, flags);
+ if (!(card->midi.open_mode & (FMODE_READ | FMODE_WRITE))) {
+ card->midi.ird = card->midi.iwr = card->midi.icnt = 0;
+ card->midi.ord = card->midi.owr = card->midi.ocnt = 0;
+ card->midi.ird = card->midi.iwr = card->midi.icnt = 0;
+ cs461x_pokeBA0(card, BA0_MIDCR, 0x0000000f); /* Enable xmit, rcv. */
+ cs461x_pokeBA0(card, BA0_HICR, HICR_IEV | HICR_CHGM); /* Enable interrupts */
+ }
+ if (file->f_mode & FMODE_READ) {
+ card->midi.ird = card->midi.iwr = card->midi.icnt = 0;
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ card->midi.ord = card->midi.owr = card->midi.ocnt = 0;
+ }
+ spin_unlock_irqrestore(&card->midi.lock, flags);
+ card->midi.open_mode |= (file->f_mode & (FMODE_READ | FMODE_WRITE));
+ up(&card->midi.open_sem);
+ return 0;
+}
+
+
+static int cs_midi_release(struct inode *inode, struct file *file)
+{
+ struct cs_card *card = (struct cs_card *)file->private_data;
+ DECLARE_WAITQUEUE(wait, current);
+ unsigned long flags;
+ unsigned count, tmo;
+
+ if (file->f_mode & FMODE_WRITE) {
+ current->state = TASK_INTERRUPTIBLE;
+ add_wait_queue(&card->midi.owait, &wait);
+ for (;;) {
+ spin_lock_irqsave(&card->midi.lock, flags);
+ count = card->midi.ocnt;
+ spin_unlock_irqrestore(&card->midi.lock, flags);
+ if (count <= 0)
+ break;
+ if (signal_pending(current))
+ break;
+ if (file->f_flags & O_NONBLOCK)
+ break;
+ tmo = (count * HZ) / 3100;
+ if (!schedule_timeout(tmo ? : 1) && tmo)
+ printk(KERN_DEBUG "cs46xx: midi timed out??\n");
+ }
+ remove_wait_queue(&card->midi.owait, &wait);
+ current->state = TASK_RUNNING;
+ }
+ down(&card->midi.open_sem);
+ card->midi.open_mode &= (~(file->f_mode & (FMODE_READ | FMODE_WRITE)));
+ up(&card->midi.open_sem);
+ wake_up(&card->midi.open_wait);
+ return 0;
+}
+
+/*
+ * Midi file operations struct.
+ */
+static /*const*/ struct file_operations cs_midi_fops = {
+ CS_OWNER CS_THIS_MODULE
+ .llseek = no_llseek,
+ .read = cs_midi_read,
+ .write = cs_midi_write,
+ .poll = cs_midi_poll,
+ .open = cs_midi_open,
+ .release = cs_midi_release,
+};
+
+/*
+ *
+ * CopySamples copies 16-bit stereo signed samples from the source to the
+ * destination, possibly converting down to unsigned 8-bit and/or mono.
+ * count specifies the number of output bytes to write.
+ *
+ * Arguments:
+ *
+ * dst - Pointer to a destination buffer.
+ * src - Pointer to a source buffer
+ * count - The number of bytes to copy into the destination buffer.
+ * fmt - CS_FMT_16BIT and/or CS_FMT_STEREO bits
+ * dmabuf - pointer to the dma buffer structure
+ *
+ * NOTES: only call this routine if the output desired is not 16 Signed Stereo
+ *
+ *
+ */
+static void CopySamples(char *dst, char *src, int count, unsigned fmt,
+ struct dmabuf *dmabuf)
+{
+
+ s32 s32AudioSample;
+ s16 *psSrc=(s16 *)src;
+ s16 *psDst=(s16 *)dst;
+ u8 *pucDst=(u8 *)dst;
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO "cs46xx: CopySamples()+ ") );
+ CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO
+ " dst=%p src=%p count=%d fmt=0x%x\n",
+ dst,src,count,fmt) );
+
+ /*
+ * See if the data should be output as 8-bit unsigned stereo.
+ */
+ if((fmt & CS_FMT_STEREO) && !(fmt & CS_FMT_16BIT))
+ {
+ /*
+ * Convert each 16-bit signed stereo sample to 8-bit unsigned
+ * stereo using rounding.
+ */
+ psSrc = (s16 *)src;
+ count = count/2;
+ while(count--)
+ {
+ *(pucDst++) = (u8)(((s16)(*psSrc++) + (s16)0x8000) >> 8);
+ }
+ }
+ /*
+ * See if the data should be output at 8-bit unsigned mono.
+ */
+ else if(!(fmt & CS_FMT_STEREO) && !(fmt & CS_FMT_16BIT))
+ {
+ /*
+ * Convert each 16-bit signed stereo sample to 8-bit unsigned
+ * mono using averaging and rounding.
+ */
+ psSrc = (s16 *)src;
+ count = count/2;
+ while(count--)
+ {
+ s32AudioSample = ((*psSrc)+(*(psSrc + 1)))/2 + (s32)0x80;
+ if(s32AudioSample > 0x7fff)
+ s32AudioSample = 0x7fff;
+ *(pucDst++) = (u8)(((s16)s32AudioSample + (s16)0x8000) >> 8);
+ psSrc += 2;
+ }
+ }
+ /*
+ * See if the data should be output at 16-bit signed mono.
+ */
+ else if(!(fmt & CS_FMT_STEREO) && (fmt & CS_FMT_16BIT))
+ {
+ /*
+ * Convert each 16-bit signed stereo sample to 16-bit signed
+ * mono using averaging.
+ */
+ psSrc = (s16 *)src;
+ count = count/2;
+ while(count--)
+ {
+ *(psDst++) = (s16)((*psSrc)+(*(psSrc + 1)))/2;
+ psSrc += 2;
+ }
+ }
+}
+
+/*
+ * cs_copy_to_user()
+ * replacement for the standard copy_to_user, to allow for a conversion from
+ * 16 bit to 8 bit and from stereo to mono, if the record conversion is active.
+ * The current CS46xx/CS4280 static image only records in 16bit unsigned Stereo,
+ * so we convert from any of the other format combinations.
+ */
+static unsigned cs_copy_to_user(
+ struct cs_state *s,
+ void __user *dest,
+ void *hwsrc,
+ unsigned cnt,
+ unsigned *copied)
+{
+ struct dmabuf *dmabuf = &s->dmabuf;
+ void *src = hwsrc; /* default to the standard destination buffer addr */
+
+ CS_DBGOUT(CS_FUNCTION, 6, printk(KERN_INFO
+ "cs_copy_to_user()+ fmt=0x%x cnt=%d dest=%p\n",
+ dmabuf->fmt,(unsigned)cnt,dest) );
+
+ if(cnt > dmabuf->dmasize)
+ {
+ cnt = dmabuf->dmasize;
+ }
+ if(!cnt)
+ {
+ *copied = 0;
+ return 0;
+ }
+ if(dmabuf->divisor != 1)
+ {
+ if(!dmabuf->tmpbuff)
+ {
+ *copied = cnt/dmabuf->divisor;
+ return 0;
+ }
+
+ CopySamples((char *)dmabuf->tmpbuff, (char *)hwsrc, cnt,
+ dmabuf->fmt, dmabuf);
+ src = dmabuf->tmpbuff;
+ cnt = cnt/dmabuf->divisor;
+ }
+ if (copy_to_user(dest, src, cnt))
+ {
+ CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_ERR
+ "cs46xx: cs_copy_to_user()- fault dest=%p src=%p cnt=%d\n",
+ dest,src,cnt) );
+ *copied = 0;
+ return -EFAULT;
+ }
+ *copied = cnt;
+ CS_DBGOUT(CS_FUNCTION, 2, printk(KERN_INFO
+ "cs46xx: cs_copy_to_user()- copied bytes is %d \n",cnt) );
+ return 0;
+}
+
+/* in this loop, dmabuf.count signifies the amount of data that is waiting to be copied to
+ the user's buffer. it is filled by the dma machine and drained by this loop. */
+static ssize_t cs_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct cs_card *card = (struct cs_card *) file->private_data;
+ struct cs_state *state;
+ DECLARE_WAITQUEUE(wait, current);
+ struct dmabuf *dmabuf;
+ ssize_t ret = 0;
+ unsigned long flags;
+ unsigned swptr;
+ int cnt;
+ unsigned copied=0;
+
+ CS_DBGOUT(CS_WAVE_READ | CS_FUNCTION, 4,
+ printk("cs46xx: cs_read()+ %zd\n",count) );
+ state = (struct cs_state *)card->states[0];
+ if(!state)
+ return -ENODEV;
+ dmabuf = &state->dmabuf;
+
+ if (dmabuf->mapped)
+ return -ENXIO;
+ if (!access_ok(VERIFY_WRITE, buffer, count))
+ return -EFAULT;
+
+ down(&state->sem);
+ if (!dmabuf->ready && (ret = __prog_dmabuf(state)))
+ goto out2;
+
+ add_wait_queue(&state->dmabuf.wait, &wait);
+ while (count > 0) {
+ while(!(card->pm.flags & CS46XX_PM_IDLE))
+ {
+ schedule();
+ if (signal_pending(current)) {
+ if(!ret) ret = -ERESTARTSYS;
+ goto out;
+ }
+ }
+ spin_lock_irqsave(&state->card->lock, flags);
+ swptr = dmabuf->swptr;
+ cnt = dmabuf->dmasize - swptr;
+ if (dmabuf->count < cnt)
+ cnt = dmabuf->count;
+ if (cnt <= 0)
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_unlock_irqrestore(&state->card->lock, flags);
+
+ if (cnt > (count * dmabuf->divisor))
+ cnt = count * dmabuf->divisor;
+ if (cnt <= 0) {
+ /* buffer is empty, start the dma machine and wait for data to be
+ recorded */
+ start_adc(state);
+ if (file->f_flags & O_NONBLOCK) {
+ if (!ret) ret = -EAGAIN;
+ goto out;
+ }
+ up(&state->sem);
+ schedule();
+ if (signal_pending(current)) {
+ if(!ret) ret = -ERESTARTSYS;
+ goto out;
+ }
+ down(&state->sem);
+ if (dmabuf->mapped)
+ {
+ if(!ret)
+ ret = -ENXIO;
+ goto out;
+ }
+ continue;
+ }
+
+ CS_DBGOUT(CS_WAVE_READ, 2, printk(KERN_INFO
+ "_read() copy_to cnt=%d count=%zd ", cnt,count) );
+ CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO
+ " .dmasize=%d .count=%d buffer=%p ret=%zd\n",
+ dmabuf->dmasize,dmabuf->count,buffer,ret) );
+
+ if (cs_copy_to_user(state, buffer,
+ (char *)dmabuf->rawbuf + swptr, cnt, &copied))
+ {
+ if (!ret) ret = -EFAULT;
+ goto out;
+ }
+ swptr = (swptr + cnt) % dmabuf->dmasize;
+ spin_lock_irqsave(&card->lock, flags);
+ dmabuf->swptr = swptr;
+ dmabuf->count -= cnt;
+ spin_unlock_irqrestore(&card->lock, flags);
+ count -= copied;
+ buffer += copied;
+ ret += copied;
+ start_adc(state);
+ }
+out:
+ remove_wait_queue(&state->dmabuf.wait, &wait);
+out2:
+ up(&state->sem);
+ set_current_state(TASK_RUNNING);
+ CS_DBGOUT(CS_WAVE_READ | CS_FUNCTION, 4,
+ printk("cs46xx: cs_read()- %zd\n",ret) );
+ return ret;
+}
+
+/* in this loop, dmabuf.count signifies the amount of data that is waiting to be dma to
+ the soundcard. it is drained by the dma machine and filled by this loop. */
+static ssize_t cs_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
+{
+ struct cs_card *card = (struct cs_card *) file->private_data;
+ struct cs_state *state;
+ DECLARE_WAITQUEUE(wait, current);
+ struct dmabuf *dmabuf;
+ ssize_t ret;
+ unsigned long flags;
+ unsigned swptr;
+ int cnt;
+
+ CS_DBGOUT(CS_WAVE_WRITE | CS_FUNCTION, 4,
+ printk("cs46xx: cs_write called, count = %zd\n", count) );
+ state = (struct cs_state *)card->states[1];
+ if(!state)
+ return -ENODEV;
+ if (!access_ok(VERIFY_READ, buffer, count))
+ return -EFAULT;
+ dmabuf = &state->dmabuf;
+
+ down(&state->sem);
+ if (dmabuf->mapped)
+ {
+ ret = -ENXIO;
+ goto out;
+ }
+
+ if (!dmabuf->ready && (ret = __prog_dmabuf(state)))
+ goto out;
+ add_wait_queue(&state->dmabuf.wait, &wait);
+ ret = 0;
+/*
+* Start the loop to read from the user's buffer and write to the dma buffer.
+* check for PM events and underrun/overrun in the loop.
+*/
+ while (count > 0) {
+ while(!(card->pm.flags & CS46XX_PM_IDLE))
+ {
+ schedule();
+ if (signal_pending(current)) {
+ if(!ret) ret = -ERESTARTSYS;
+ goto out;
+ }
+ }
+ spin_lock_irqsave(&state->card->lock, flags);
+ if (dmabuf->count < 0) {
+ /* buffer underrun, we are recovering from sleep_on_timeout,
+ resync hwptr and swptr */
+ dmabuf->count = 0;
+ dmabuf->swptr = dmabuf->hwptr;
+ }
+ if (dmabuf->underrun)
+ {
+ dmabuf->underrun = 0;
+ dmabuf->hwptr = cs_get_dma_addr(state);
+ dmabuf->swptr = dmabuf->hwptr;
+ }
+
+ swptr = dmabuf->swptr;
+ cnt = dmabuf->dmasize - swptr;
+ if (dmabuf->count + cnt > dmabuf->dmasize)
+ cnt = dmabuf->dmasize - dmabuf->count;
+ if (cnt <= 0)
+ __set_current_state(TASK_INTERRUPTIBLE);
+ spin_unlock_irqrestore(&state->card->lock, flags);
+
+ if (cnt > count)
+ cnt = count;
+ if (cnt <= 0) {
+ /* buffer is full, start the dma machine and wait for data to be
+ played */
+ start_dac(state);
+ if (file->f_flags & O_NONBLOCK) {
+ if (!ret) ret = -EAGAIN;
+ goto out;
+ }
+ up(&state->sem);
+ schedule();
+ if (signal_pending(current)) {
+ if(!ret) ret = -ERESTARTSYS;
+ goto out;
+ }
+ down(&state->sem);
+ if (dmabuf->mapped)
+ {
+ if(!ret)
+ ret = -ENXIO;
+ goto out;
+ }
+ continue;
+ }
+ if (copy_from_user(dmabuf->rawbuf + swptr, buffer, cnt)) {
+ if (!ret) ret = -EFAULT;
+ goto out;
+ }
+ spin_lock_irqsave(&state->card->lock, flags);
+ swptr = (swptr + cnt) % dmabuf->dmasize;
+ dmabuf->swptr = swptr;
+ dmabuf->count += cnt;
+ if(dmabuf->count > dmabuf->dmasize)
+ {
+ CS_DBGOUT(CS_WAVE_WRITE | CS_ERROR, 2, printk(
+ "cs46xx: cs_write() d->count > dmasize - resetting\n"));
+ dmabuf->count = dmabuf->dmasize;
+ }
+ dmabuf->endcleared = 0;
+ spin_unlock_irqrestore(&state->card->lock, flags);
+
+ count -= cnt;
+ buffer += cnt;
+ ret += cnt;
+ start_dac(state);
+ }
+out:
+ up(&state->sem);
+ remove_wait_queue(&state->dmabuf.wait, &wait);
+ set_current_state(TASK_RUNNING);
+
+ CS_DBGOUT(CS_WAVE_WRITE | CS_FUNCTION, 2,
+ printk("cs46xx: cs_write()- ret=%zd\n", ret) );
+ return ret;
+}
+
+static unsigned int cs_poll(struct file *file, struct poll_table_struct *wait)
+{
+ struct cs_card *card = (struct cs_card *)file->private_data;
+ struct dmabuf *dmabuf;
+ struct cs_state *state;
+
+ unsigned long flags;
+ unsigned int mask = 0;
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_poll()+ \n"));
+ if (!(file->f_mode & (FMODE_WRITE | FMODE_READ)))
+ {
+ return -EINVAL;
+ }
+ if (file->f_mode & FMODE_WRITE)
+ {
+ state = card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ poll_wait(file, &dmabuf->wait, wait);
+ }
+ }
+ if (file->f_mode & FMODE_READ)
+ {
+ state = card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ poll_wait(file, &dmabuf->wait, wait);
+ }
+ }
+
+ spin_lock_irqsave(&card->lock, flags);
+ cs_update_ptr(card, CS_FALSE);
+ if (file->f_mode & FMODE_READ) {
+ state = card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ if (dmabuf->count >= (signed)dmabuf->fragsize)
+ mask |= POLLIN | POLLRDNORM;
+ }
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ state = card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ if (dmabuf->mapped) {
+ if (dmabuf->count >= (signed)dmabuf->fragsize)
+ mask |= POLLOUT | POLLWRNORM;
+ } else {
+ if ((signed)dmabuf->dmasize >= dmabuf->count
+ + (signed)dmabuf->fragsize)
+ mask |= POLLOUT | POLLWRNORM;
+ }
+ }
+ }
+ spin_unlock_irqrestore(&card->lock, flags);
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_poll()- (0x%x) \n",
+ mask));
+ return mask;
+}
+
+/*
+ * We let users mmap the ring buffer. Its not the real DMA buffer but
+ * that side of the code is hidden in the IRQ handling. We do a software
+ * emulation of DMA from a 64K or so buffer into a 2K FIFO.
+ * (the hardware probably deserves a moan here but Crystal send me nice
+ * toys ;)).
+ */
+
+static int cs_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct cs_card *card = (struct cs_card *)file->private_data;
+ struct cs_state *state;
+ struct dmabuf *dmabuf;
+ int ret = 0;
+ unsigned long size;
+
+ CS_DBGOUT(CS_FUNCTION | CS_PARMS, 2, printk("cs46xx: cs_mmap()+ file=%p %s %s\n",
+ file, vma->vm_flags & VM_WRITE ? "VM_WRITE" : "",
+ vma->vm_flags & VM_READ ? "VM_READ" : "") );
+
+ if (vma->vm_flags & VM_WRITE) {
+ state = card->states[1];
+ if(state)
+ {
+ CS_DBGOUT(CS_OPEN, 2, printk(
+ "cs46xx: cs_mmap() VM_WRITE - state TRUE prog_dmabuf DAC\n") );
+ if ((ret = prog_dmabuf(state)) != 0)
+ return ret;
+ }
+ } else if (vma->vm_flags & VM_READ) {
+ state = card->states[0];
+ if(state)
+ {
+ CS_DBGOUT(CS_OPEN, 2, printk(
+ "cs46xx: cs_mmap() VM_READ - state TRUE prog_dmabuf ADC\n") );
+ if ((ret = prog_dmabuf(state)) != 0)
+ return ret;
+ }
+ } else {
+ CS_DBGOUT(CS_ERROR, 2, printk(
+ "cs46xx: cs_mmap() return -EINVAL\n") );
+ return -EINVAL;
+ }
+
+/*
+ * For now ONLY support playback, but seems like the only way to use
+ * mmap() is to open an FD with RDWR, just read or just write access
+ * does not function, get an error back from the kernel.
+ * Also, QuakeIII opens with RDWR! So, there must be something
+ * to needing read/write access mapping. So, allow read/write but
+ * use the DAC only.
+ */
+ state = card->states[1];
+ if (!state) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ down(&state->sem);
+ dmabuf = &state->dmabuf;
+ if (cs4x_pgoff(vma) != 0)
+ {
+ ret = -EINVAL;
+ goto out;
+ }
+ size = vma->vm_end - vma->vm_start;
+
+ CS_DBGOUT(CS_PARMS, 2, printk("cs46xx: cs_mmap(): size=%d\n",(unsigned)size) );
+
+ if (size > (PAGE_SIZE << dmabuf->buforder))
+ {
+ ret = -EINVAL;
+ goto out;
+ }
+ if (remap_pfn_range(vma, vma->vm_start,
+ virt_to_phys(dmabuf->rawbuf) >> PAGE_SHIFT,
+ size, vma->vm_page_prot))
+ {
+ ret = -EAGAIN;
+ goto out;
+ }
+ dmabuf->mapped = 1;
+
+ CS_DBGOUT(CS_FUNCTION, 2, printk("cs46xx: cs_mmap()-\n") );
+out:
+ up(&state->sem);
+ return ret;
+}
+
+static int cs_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+{
+ struct cs_card *card = (struct cs_card *)file->private_data;
+ struct cs_state *state;
+ struct dmabuf *dmabuf=NULL;
+ unsigned long flags;
+ audio_buf_info abinfo;
+ count_info cinfo;
+ int val, valsave, mapped, ret;
+ void __user *argp = (void __user *)arg;
+ int __user *p = argp;
+
+ state = (struct cs_state *)card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ mapped = (file->f_mode & FMODE_READ) && dmabuf->mapped;
+ }
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ mapped |= (file->f_mode & FMODE_WRITE) && dmabuf->mapped;
+ }
+
+#if CSDEBUG
+ printioctl(cmd);
+#endif
+
+ switch (cmd)
+ {
+ case OSS_GETVERSION:
+ return put_user(SOUND_VERSION, p);
+
+ case SNDCTL_DSP_RESET:
+ /* FIXME: spin_lock ? */
+ if (file->f_mode & FMODE_WRITE) {
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ stop_dac(state);
+ synchronize_irq(card->irq);
+ dmabuf->ready = 0;
+ resync_dma_ptrs(state);
+ dmabuf->swptr = dmabuf->hwptr = 0;
+ dmabuf->count = dmabuf->total_bytes = 0;
+ dmabuf->blocks = 0;
+ dmabuf->SGok = 0;
+ }
+ }
+ if (file->f_mode & FMODE_READ) {
+ state = (struct cs_state *)card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ stop_adc(state);
+ synchronize_irq(card->irq);
+ resync_dma_ptrs(state);
+ dmabuf->ready = 0;
+ dmabuf->swptr = dmabuf->hwptr = 0;
+ dmabuf->count = dmabuf->total_bytes = 0;
+ dmabuf->blocks = 0;
+ dmabuf->SGok = 0;
+ }
+ }
+ CS_DBGOUT(CS_IOCTL, 2, printk("cs46xx: DSP_RESET()-\n") );
+ return 0;
+
+ case SNDCTL_DSP_SYNC:
+ if (file->f_mode & FMODE_WRITE)
+ return drain_dac(state, file->f_flags & O_NONBLOCK);
+ return 0;
+
+ case SNDCTL_DSP_SPEED: /* set sample rate */
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val >= 0) {
+ if (file->f_mode & FMODE_READ) {
+ state = (struct cs_state *)card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ stop_adc(state);
+ dmabuf->ready = 0;
+ dmabuf->SGok = 0;
+ cs_set_adc_rate(state, val);
+ cs_set_divisor(dmabuf);
+ }
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ stop_dac(state);
+ dmabuf->ready = 0;
+ dmabuf->SGok = 0;
+ cs_set_dac_rate(state, val);
+ cs_set_divisor(dmabuf);
+ }
+ }
+ CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(
+ "cs46xx: cs_ioctl() DSP_SPEED %s %s %d\n",
+ file->f_mode & FMODE_WRITE ? "DAC" : "",
+ file->f_mode & FMODE_READ ? "ADC" : "",
+ dmabuf->rate ) );
+ return put_user(dmabuf->rate, p);
+ }
+ return put_user(0, p);
+
+ case SNDCTL_DSP_STEREO: /* set stereo or mono channel */
+ if (get_user(val, p))
+ return -EFAULT;
+ if (file->f_mode & FMODE_WRITE) {
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ stop_dac(state);
+ dmabuf->ready = 0;
+ dmabuf->SGok = 0;
+ if(val)
+ dmabuf->fmt |= CS_FMT_STEREO;
+ else
+ dmabuf->fmt &= ~CS_FMT_STEREO;
+ cs_set_divisor(dmabuf);
+ CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(
+ "cs46xx: DSP_STEREO() DAC %s\n",
+ (dmabuf->fmt & CS_FMT_STEREO) ?
+ "STEREO":"MONO") );
+ }
+ }
+ if (file->f_mode & FMODE_READ) {
+ state = (struct cs_state *)card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ stop_adc(state);
+ dmabuf->ready = 0;
+ dmabuf->SGok = 0;
+ if(val)
+ dmabuf->fmt |= CS_FMT_STEREO;
+ else
+ dmabuf->fmt &= ~CS_FMT_STEREO;
+ cs_set_divisor(dmabuf);
+ CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(
+ "cs46xx: DSP_STEREO() ADC %s\n",
+ (dmabuf->fmt & CS_FMT_STEREO) ?
+ "STEREO":"MONO") );
+ }
+ }
+ return 0;
+
+ case SNDCTL_DSP_GETBLKSIZE:
+ if (file->f_mode & FMODE_WRITE) {
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ if ((val = prog_dmabuf(state)))
+ return val;
+ return put_user(dmabuf->fragsize, p);
+ }
+ }
+ if (file->f_mode & FMODE_READ) {
+ state = (struct cs_state *)card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ if ((val = prog_dmabuf(state)))
+ return val;
+ return put_user(dmabuf->fragsize/dmabuf->divisor,
+ p);
+ }
+ }
+ return put_user(0, p);
+
+ case SNDCTL_DSP_GETFMTS: /* Returns a mask of supported sample format*/
+ return put_user(AFMT_S16_LE | AFMT_U8, p);
+
+ case SNDCTL_DSP_SETFMT: /* Select sample format */
+ if (get_user(val, p))
+ return -EFAULT;
+ CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(
+ "cs46xx: cs_ioctl() DSP_SETFMT %s %s %s %s\n",
+ file->f_mode & FMODE_WRITE ? "DAC" : "",
+ file->f_mode & FMODE_READ ? "ADC" : "",
+ val == AFMT_S16_LE ? "16Bit Signed" : "",
+ val == AFMT_U8 ? "8Bit Unsigned" : "") );
+ valsave = val;
+ if (val != AFMT_QUERY) {
+ if(val==AFMT_S16_LE || val==AFMT_U8)
+ {
+ if (file->f_mode & FMODE_WRITE) {
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ stop_dac(state);
+ dmabuf->ready = 0;
+ dmabuf->SGok = 0;
+ if(val==AFMT_S16_LE)
+ dmabuf->fmt |= CS_FMT_16BIT;
+ else
+ dmabuf->fmt &= ~CS_FMT_16BIT;
+ cs_set_divisor(dmabuf);
+ if((ret = prog_dmabuf(state)))
+ return ret;
+ }
+ }
+ if (file->f_mode & FMODE_READ) {
+ val = valsave;
+ state = (struct cs_state *)card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ stop_adc(state);
+ dmabuf->ready = 0;
+ dmabuf->SGok = 0;
+ if(val==AFMT_S16_LE)
+ dmabuf->fmt |= CS_FMT_16BIT;
+ else
+ dmabuf->fmt &= ~CS_FMT_16BIT;
+ cs_set_divisor(dmabuf);
+ if((ret = prog_dmabuf(state)))
+ return ret;
+ }
+ }
+ }
+ else
+ {
+ CS_DBGOUT(CS_IOCTL | CS_ERROR, 2, printk(
+ "cs46xx: DSP_SETFMT() Unsupported format (0x%x)\n",
+ valsave) );
+ }
+ }
+ else
+ {
+ if(file->f_mode & FMODE_WRITE)
+ {
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ dmabuf = &state->dmabuf;
+ }
+ else if(file->f_mode & FMODE_READ)
+ {
+ state = (struct cs_state *)card->states[0];
+ if(state)
+ dmabuf = &state->dmabuf;
+ }
+ }
+ if(dmabuf)
+ {
+ if(dmabuf->fmt & CS_FMT_16BIT)
+ return put_user(AFMT_S16_LE, p);
+ else
+ return put_user(AFMT_U8, p);
+ }
+ return put_user(0, p);
+
+ case SNDCTL_DSP_CHANNELS:
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val != 0) {
+ if (file->f_mode & FMODE_WRITE) {
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ stop_dac(state);
+ dmabuf->ready = 0;
+ dmabuf->SGok = 0;
+ if(val>1)
+ dmabuf->fmt |= CS_FMT_STEREO;
+ else
+ dmabuf->fmt &= ~CS_FMT_STEREO;
+ cs_set_divisor(dmabuf);
+ if (prog_dmabuf(state))
+ return 0;
+ }
+ }
+ if (file->f_mode & FMODE_READ) {
+ state = (struct cs_state *)card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ stop_adc(state);
+ dmabuf->ready = 0;
+ dmabuf->SGok = 0;
+ if(val>1)
+ dmabuf->fmt |= CS_FMT_STEREO;
+ else
+ dmabuf->fmt &= ~CS_FMT_STEREO;
+ cs_set_divisor(dmabuf);
+ if (prog_dmabuf(state))
+ return 0;
+ }
+ }
+ }
+ return put_user((dmabuf->fmt & CS_FMT_STEREO) ? 2 : 1,
+ p);
+
+ case SNDCTL_DSP_POST:
+ /*
+ * There will be a longer than normal pause in the data.
+ * so... do nothing, because there is nothing that we can do.
+ */
+ return 0;
+
+ case SNDCTL_DSP_SUBDIVIDE:
+ if (file->f_mode & FMODE_WRITE) {
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ if (dmabuf->subdivision)
+ return -EINVAL;
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val != 1 && val != 2)
+ return -EINVAL;
+ dmabuf->subdivision = val;
+ }
+ }
+ if (file->f_mode & FMODE_READ) {
+ state = (struct cs_state *)card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ if (dmabuf->subdivision)
+ return -EINVAL;
+ if (get_user(val, p))
+ return -EFAULT;
+ if (val != 1 && val != 2)
+ return -EINVAL;
+ dmabuf->subdivision = val;
+ }
+ }
+ return 0;
+
+ case SNDCTL_DSP_SETFRAGMENT:
+ if (get_user(val, p))
+ return -EFAULT;
+
+ if (file->f_mode & FMODE_WRITE) {
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ dmabuf->ossfragshift = val & 0xffff;
+ dmabuf->ossmaxfrags = (val >> 16) & 0xffff;
+ }
+ }
+ if (file->f_mode & FMODE_READ) {
+ state = (struct cs_state *)card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ dmabuf->ossfragshift = val & 0xffff;
+ dmabuf->ossmaxfrags = (val >> 16) & 0xffff;
+ }
+ }
+ return 0;
+
+ case SNDCTL_DSP_GETOSPACE:
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EINVAL;
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ spin_lock_irqsave(&state->card->lock, flags);
+ cs_update_ptr(card, CS_TRUE);
+ abinfo.fragsize = dmabuf->fragsize;
+ abinfo.fragstotal = dmabuf->numfrag;
+ /*
+ * for mmap we always have total space available
+ */
+ if (dmabuf->mapped)
+ abinfo.bytes = dmabuf->dmasize;
+ else
+ abinfo.bytes = dmabuf->dmasize - dmabuf->count;
+
+ abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
+ spin_unlock_irqrestore(&state->card->lock, flags);
+ return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
+ }
+ return -ENODEV;
+
+ case SNDCTL_DSP_GETISPACE:
+ if (!(file->f_mode & FMODE_READ))
+ return -EINVAL;
+ state = (struct cs_state *)card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ spin_lock_irqsave(&state->card->lock, flags);
+ cs_update_ptr(card, CS_TRUE);
+ abinfo.fragsize = dmabuf->fragsize/dmabuf->divisor;
+ abinfo.bytes = dmabuf->count/dmabuf->divisor;
+ abinfo.fragstotal = dmabuf->numfrag;
+ abinfo.fragments = abinfo.bytes >> dmabuf->fragshift;
+ spin_unlock_irqrestore(&state->card->lock, flags);
+ return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
+ }
+ return -ENODEV;
+
+ case SNDCTL_DSP_NONBLOCK:
+ file->f_flags |= O_NONBLOCK;
+ return 0;
+
+ case SNDCTL_DSP_GETCAPS:
+ return put_user(DSP_CAP_REALTIME|DSP_CAP_TRIGGER|DSP_CAP_MMAP,
+ p);
+
+ case SNDCTL_DSP_GETTRIGGER:
+ val = 0;
+ CS_DBGOUT(CS_IOCTL, 2, printk("cs46xx: DSP_GETTRIGGER()+\n") );
+ if (file->f_mode & FMODE_WRITE)
+ {
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ if(dmabuf->enable & DAC_RUNNING)
+ val |= PCM_ENABLE_INPUT;
+ }
+ }
+ if (file->f_mode & FMODE_READ)
+ {
+ if(state)
+ {
+ state = (struct cs_state *)card->states[0];
+ dmabuf = &state->dmabuf;
+ if(dmabuf->enable & ADC_RUNNING)
+ val |= PCM_ENABLE_OUTPUT;
+ }
+ }
+ CS_DBGOUT(CS_IOCTL, 2, printk("cs46xx: DSP_GETTRIGGER()- val=0x%x\n",val) );
+ return put_user(val, p);
+
+ case SNDCTL_DSP_SETTRIGGER:
+ if (get_user(val, p))
+ return -EFAULT;
+ if (file->f_mode & FMODE_READ) {
+ state = (struct cs_state *)card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ if (val & PCM_ENABLE_INPUT) {
+ if (!dmabuf->ready && (ret = prog_dmabuf(state)))
+ return ret;
+ start_adc(state);
+ } else
+ stop_adc(state);
+ }
+ }
+ if (file->f_mode & FMODE_WRITE) {
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ if (val & PCM_ENABLE_OUTPUT) {
+ if (!dmabuf->ready && (ret = prog_dmabuf(state)))
+ return ret;
+ start_dac(state);
+ } else
+ stop_dac(state);
+ }
+ }
+ return 0;
+
+ case SNDCTL_DSP_GETIPTR:
+ if (!(file->f_mode & FMODE_READ))
+ return -EINVAL;
+ state = (struct cs_state *)card->states[0];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ spin_lock_irqsave(&state->card->lock, flags);
+ cs_update_ptr(card, CS_TRUE);
+ cinfo.bytes = dmabuf->total_bytes/dmabuf->divisor;
+ cinfo.blocks = dmabuf->count/dmabuf->divisor >> dmabuf->fragshift;
+ cinfo.ptr = dmabuf->hwptr/dmabuf->divisor;
+ spin_unlock_irqrestore(&state->card->lock, flags);
+ if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
+ return -EFAULT;
+ return 0;
+ }
+ return -ENODEV;
+
+ case SNDCTL_DSP_GETOPTR:
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EINVAL;
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ spin_lock_irqsave(&state->card->lock, flags);
+ cs_update_ptr(card, CS_TRUE);
+ cinfo.bytes = dmabuf->total_bytes;
+ if (dmabuf->mapped)
+ {
+ cinfo.blocks = (cinfo.bytes >> dmabuf->fragshift)
+ - dmabuf->blocks;
+ CS_DBGOUT(CS_PARMS, 8,
+ printk("total_bytes=%d blocks=%d dmabuf->blocks=%d\n",
+ cinfo.bytes,cinfo.blocks,dmabuf->blocks) );
+ dmabuf->blocks = cinfo.bytes >> dmabuf->fragshift;
+ }
+ else
+ {
+ cinfo.blocks = dmabuf->count >> dmabuf->fragshift;
+ }
+ cinfo.ptr = dmabuf->hwptr;
+
+ CS_DBGOUT(CS_PARMS, 4, printk(
+ "cs46xx: GETOPTR bytes=%d blocks=%d ptr=%d\n",
+ cinfo.bytes,cinfo.blocks,cinfo.ptr) );
+ spin_unlock_irqrestore(&state->card->lock, flags);
+ if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
+ return -EFAULT;
+ return 0;
+ }
+ return -ENODEV;
+
+ case SNDCTL_DSP_SETDUPLEX:
+ return 0;
+
+ case SNDCTL_DSP_GETODELAY:
+ if (!(file->f_mode & FMODE_WRITE))
+ return -EINVAL;
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ spin_lock_irqsave(&state->card->lock, flags);
+ cs_update_ptr(card, CS_TRUE);
+ val = dmabuf->count;
+ spin_unlock_irqrestore(&state->card->lock, flags);
+ }
+ else
+ val = 0;
+ return put_user(val, p);
+
+ case SOUND_PCM_READ_RATE:
+ if(file->f_mode & FMODE_READ)
+ state = (struct cs_state *)card->states[0];
+ else
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ return put_user(dmabuf->rate, p);
+ }
+ return put_user(0, p);
+
+
+ case SOUND_PCM_READ_CHANNELS:
+ if(file->f_mode & FMODE_READ)
+ state = (struct cs_state *)card->states[0];
+ else
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ return put_user((dmabuf->fmt & CS_FMT_STEREO) ? 2 : 1,
+ p);
+ }
+ return put_user(0, p);
+
+ case SOUND_PCM_READ_BITS:
+ if(file->f_mode & FMODE_READ)
+ state = (struct cs_state *)card->states[0];
+ else
+ state = (struct cs_state *)card->states[1];
+ if(state)
+ {
+ dmabuf = &state->dmabuf;
+ return put_user((dmabuf->fmt & CS_FMT_16BIT) ?
+ AFMT_S16_LE : AFMT_U8, p);
+
+ }
+ return put_user(0, p);
+
+ case SNDCTL_DSP_MAPINBUF:
+ case SNDCTL_DSP_MAPOUTBUF:
+ case SNDCTL_DSP_SETSYNCRO:
+ case SOUND_PCM_WRITE_FILTER:
+ case SOUND_PCM_READ_FILTER:
+ return -EINVAL;
+ }
+ return -EINVAL;
+}
+
+
+/*
+ * AMP control - null AMP
+ */
+
+static void amp_none(struct cs_card *card, int change)
+{
+}
+
+/*
+ * Crystal EAPD mode
+ */
+
+static void amp_voyetra(struct cs_card *card, int change)
+{
+ /* Manage the EAPD bit on the Crystal 4297
+ and the Analog AD1885 */
+
+ int old=card->amplifier;
+
+ card->amplifier+=change;
+ if(card->amplifier && !old)
+ {
+ /* Turn the EAPD amp on */
+ cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL,
+ cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) |
+ 0x8000);
+ }
+ else if(old && !card->amplifier)
+ {
+ /* Turn the EAPD amp off */
+ cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL,
+ cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ ~0x8000);
+ }
+}
+
+
+/*
+ * Game Theatre XP card - EGPIO[2] is used to enable the external amp.
+ */
+
+static void amp_hercules(struct cs_card *card, int change)
+{
+ int old=card->amplifier;
+ if(!card)
+ {
+ CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO
+ "cs46xx: amp_hercules() called before initialized.\n"));
+ return;
+ }
+ card->amplifier+=change;
+ if( (card->amplifier && !old) && !(hercules_egpio_disable))
+ {
+ CS_DBGOUT(CS_PARMS, 4, printk(KERN_INFO
+ "cs46xx: amp_hercules() external amp enabled\n"));
+ cs461x_pokeBA0(card, BA0_EGPIODR,
+ EGPIODR_GPOE2); /* enable EGPIO2 output */
+ cs461x_pokeBA0(card, BA0_EGPIOPTR,
+ EGPIOPTR_GPPT2); /* open-drain on output */
+ }
+ else if(old && !card->amplifier)
+ {
+ CS_DBGOUT(CS_PARMS, 4, printk(KERN_INFO
+ "cs46xx: amp_hercules() external amp disabled\n"));
+ cs461x_pokeBA0(card, BA0_EGPIODR, 0); /* disable */
+ cs461x_pokeBA0(card, BA0_EGPIOPTR, 0); /* disable */
+ }
+}
+
+/*
+ * Handle the CLKRUN on a thinkpad. We must disable CLKRUN support
+ * whenever we need to beat on the chip.
+ *
+ * The original idea and code for this hack comes from David Kaiser at
+ * Linuxcare. Perhaps one day Crystal will document their chips well
+ * enough to make them useful.
+ */
+
+static void clkrun_hack(struct cs_card *card, int change)
+{
+ struct pci_dev *acpi_dev;
+ u16 control;
+ u8 pp;
+ unsigned long port;
+ int old=card->active;
+
+ card->active+=change;
+
+ acpi_dev = pci_find_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
+ if(acpi_dev == NULL)
+ return; /* Not a thinkpad thats for sure */
+
+ /* Find the control port */
+ pci_read_config_byte(acpi_dev, 0x41, &pp);
+ port=pp<<8;
+
+ /* Read ACPI port */
+ control=inw(port+0x10);
+
+ /* Flip CLKRUN off while running */
+ if(!card->active && old)
+ {
+ CS_DBGOUT(CS_PARMS , 9, printk( KERN_INFO
+ "cs46xx: clkrun() enable clkrun - change=%d active=%d\n",
+ change,card->active));
+ outw(control|0x2000, port+0x10);
+ }
+ else
+ {
+ /*
+ * sometimes on a resume the bit is set, so always reset the bit.
+ */
+ CS_DBGOUT(CS_PARMS , 9, printk( KERN_INFO
+ "cs46xx: clkrun() disable clkrun - change=%d active=%d\n",
+ change,card->active));
+ outw(control&~0x2000, port+0x10);
+ }
+}
+
+
+static int cs_open(struct inode *inode, struct file *file)
+{
+ struct cs_card *card = (struct cs_card *)file->private_data;
+ struct cs_state *state = NULL;
+ struct dmabuf *dmabuf = NULL;
+ struct list_head *entry;
+ unsigned int minor = iminor(inode);
+ int ret=0;
+ unsigned int tmp;
+
+ CS_DBGOUT(CS_OPEN | CS_FUNCTION, 2, printk("cs46xx: cs_open()+ file=%p %s %s\n",
+ file, file->f_mode & FMODE_WRITE ? "FMODE_WRITE" : "",
+ file->f_mode & FMODE_READ ? "FMODE_READ" : "") );
+
+ list_for_each(entry, &cs46xx_devs)
+ {
+ card = list_entry(entry, struct cs_card, list);
+
+ if (!((card->dev_audio ^ minor) & ~0xf))
+ break;
+ }
+ if (entry == &cs46xx_devs)
+ return -ENODEV;
+ if (!card) {
+ CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO
+ "cs46xx: cs_open(): Error - unable to find audio card struct\n"));
+ return -ENODEV;
+ }
+
+ /*
+ * hardcode state[0] for capture, [1] for playback
+ */
+ if(file->f_mode & FMODE_READ)
+ {
+ CS_DBGOUT(CS_WAVE_READ, 2, printk("cs46xx: cs_open() FMODE_READ\n") );
+ if (card->states[0] == NULL) {
+ state = card->states[0] = (struct cs_state *)
+ kmalloc(sizeof(struct cs_state), GFP_KERNEL);
+ if (state == NULL)
+ return -ENOMEM;
+ memset(state, 0, sizeof(struct cs_state));
+ init_MUTEX(&state->sem);
+ dmabuf = &state->dmabuf;
+ dmabuf->pbuf = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
+ if(dmabuf->pbuf==NULL)
+ {
+ kfree(state);
+ card->states[0]=NULL;
+ return -ENOMEM;
+ }
+ }
+ else
+ {
+ state = card->states[0];
+ if(state->open_mode & FMODE_READ)
+ return -EBUSY;
+ }
+ dmabuf->channel = card->alloc_rec_pcm_channel(card);
+
+ if (dmabuf->channel == NULL) {
+ kfree (card->states[0]);
+ card->states[0] = NULL;
+ return -ENODEV;
+ }
+
+ /* Now turn on external AMP if needed */
+ state->card = card;
+ state->card->active_ctrl(state->card,1);
+ state->card->amplifier_ctrl(state->card,1);
+
+ if( (tmp = cs46xx_powerup(card, CS_POWER_ADC)) )
+ {
+ CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
+ "cs46xx: cs46xx_powerup of ADC failed (0x%x)\n",tmp) );
+ return -EIO;
+ }
+
+ dmabuf->channel->state = state;
+ /* initialize the virtual channel */
+ state->virt = 0;
+ state->magic = CS_STATE_MAGIC;
+ init_waitqueue_head(&dmabuf->wait);
+ init_MUTEX(&state->open_sem);
+ file->private_data = card;
+
+ down(&state->open_sem);
+
+ /* set default sample format. According to OSS Programmer's Guide /dev/dsp
+ should be default to unsigned 8-bits, mono, with sample rate 8kHz and
+ /dev/dspW will accept 16-bits sample */
+
+ /* Default input is 8bit mono */
+ dmabuf->fmt &= ~CS_FMT_MASK;
+ dmabuf->type = CS_TYPE_ADC;
+ dmabuf->ossfragshift = 0;
+ dmabuf->ossmaxfrags = 0;
+ dmabuf->subdivision = 0;
+ cs_set_adc_rate(state, 8000);
+ cs_set_divisor(dmabuf);
+
+ state->open_mode |= FMODE_READ;
+ up(&state->open_sem);
+ }
+ if(file->f_mode & FMODE_WRITE)
+ {
+ CS_DBGOUT(CS_OPEN, 2, printk("cs46xx: cs_open() FMODE_WRITE\n") );
+ if (card->states[1] == NULL) {
+ state = card->states[1] = (struct cs_state *)
+ kmalloc(sizeof(struct cs_state), GFP_KERNEL);
+ if (state == NULL)
+ return -ENOMEM;
+ memset(state, 0, sizeof(struct cs_state));
+ init_MUTEX(&state->sem);
+ dmabuf = &state->dmabuf;
+ dmabuf->pbuf = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
+ if(dmabuf->pbuf==NULL)
+ {
+ kfree(state);
+ card->states[1]=NULL;
+ return -ENOMEM;
+ }
+ }
+ else
+ {
+ state = card->states[1];
+ if(state->open_mode & FMODE_WRITE)
+ return -EBUSY;
+ }
+ dmabuf->channel = card->alloc_pcm_channel(card);
+
+ if (dmabuf->channel == NULL) {
+ kfree (card->states[1]);
+ card->states[1] = NULL;
+ return -ENODEV;
+ }
+
+ /* Now turn on external AMP if needed */
+ state->card = card;
+ state->card->active_ctrl(state->card,1);
+ state->card->amplifier_ctrl(state->card,1);
+
+ if( (tmp = cs46xx_powerup(card, CS_POWER_DAC)) )
+ {
+ CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
+ "cs46xx: cs46xx_powerup of DAC failed (0x%x)\n",tmp) );
+ return -EIO;
+ }
+
+ dmabuf->channel->state = state;
+ /* initialize the virtual channel */
+ state->virt = 1;
+ state->magic = CS_STATE_MAGIC;
+ init_waitqueue_head(&dmabuf->wait);
+ init_MUTEX(&state->open_sem);
+ file->private_data = card;
+
+ down(&state->open_sem);
+
+ /* set default sample format. According to OSS Programmer's Guide /dev/dsp
+ should be default to unsigned 8-bits, mono, with sample rate 8kHz and
+ /dev/dspW will accept 16-bits sample */
+
+ /* Default output is 8bit mono. */
+ dmabuf->fmt &= ~CS_FMT_MASK;
+ dmabuf->type = CS_TYPE_DAC;
+ dmabuf->ossfragshift = 0;
+ dmabuf->ossmaxfrags = 0;
+ dmabuf->subdivision = 0;
+ cs_set_dac_rate(state, 8000);
+ cs_set_divisor(dmabuf);
+
+ state->open_mode |= FMODE_WRITE;
+ up(&state->open_sem);
+ if((ret = prog_dmabuf(state)))
+ return ret;
+ }
+ CS_DBGOUT(CS_OPEN | CS_FUNCTION, 2, printk("cs46xx: cs_open()- 0\n") );
+ return nonseekable_open(inode, file);
+}
+
+static int cs_release(struct inode *inode, struct file *file)
+{
+ struct cs_card *card = (struct cs_card *)file->private_data;
+ struct dmabuf *dmabuf;
+ struct cs_state *state;
+ unsigned int tmp;
+ CS_DBGOUT(CS_RELEASE | CS_FUNCTION, 2, printk("cs46xx: cs_release()+ file=%p %s %s\n",
+ file, file->f_mode & FMODE_WRITE ? "FMODE_WRITE" : "",
+ file->f_mode & FMODE_READ ? "FMODE_READ" : "") );
+
+ if (!(file->f_mode & (FMODE_WRITE | FMODE_READ)))
+ {
+ return -EINVAL;
+ }
+ state = card->states[1];
+ if(state)
+ {
+ if ( (state->open_mode & FMODE_WRITE) & (file->f_mode & FMODE_WRITE) )
+ {
+ CS_DBGOUT(CS_RELEASE, 2, printk("cs46xx: cs_release() FMODE_WRITE\n") );
+ dmabuf = &state->dmabuf;
+ cs_clear_tail(state);
+ drain_dac(state, file->f_flags & O_NONBLOCK);
+ /* stop DMA state machine and free DMA buffers/channels */
+ down(&state->open_sem);
+ stop_dac(state);
+ dealloc_dmabuf(state);
+ state->card->free_pcm_channel(state->card, dmabuf->channel->num);
+ free_page((unsigned long)state->dmabuf.pbuf);
+
+ /* we're covered by the open_sem */
+ up(&state->open_sem);
+ state->card->states[state->virt] = NULL;
+ state->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
+
+ if( (tmp = cs461x_powerdown(card, CS_POWER_DAC, CS_FALSE )) )
+ {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
+ "cs46xx: cs_release_mixdev() powerdown DAC failure (0x%x)\n",tmp) );
+ }
+
+ /* Now turn off external AMP if needed */
+ state->card->amplifier_ctrl(state->card, -1);
+ state->card->active_ctrl(state->card, -1);
+
+ kfree(state);
+ }
+ }
+
+ state = card->states[0];
+ if(state)
+ {
+ if ( (state->open_mode & FMODE_READ) & (file->f_mode & FMODE_READ) )
+ {
+ CS_DBGOUT(CS_RELEASE, 2, printk("cs46xx: cs_release() FMODE_READ\n") );
+ dmabuf = &state->dmabuf;
+ down(&state->open_sem);
+ stop_adc(state);
+ dealloc_dmabuf(state);
+ state->card->free_pcm_channel(state->card, dmabuf->channel->num);
+ free_page((unsigned long)state->dmabuf.pbuf);
+
+ /* we're covered by the open_sem */
+ up(&state->open_sem);
+ state->card->states[state->virt] = NULL;
+ state->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE);
+
+ if( (tmp = cs461x_powerdown(card, CS_POWER_ADC, CS_FALSE )) )
+ {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
+ "cs46xx: cs_release_mixdev() powerdown ADC failure (0x%x)\n",tmp) );
+ }
+
+ /* Now turn off external AMP if needed */
+ state->card->amplifier_ctrl(state->card, -1);
+ state->card->active_ctrl(state->card, -1);
+
+ kfree(state);
+ }
+ }
+
+ CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 2, printk("cs46xx: cs_release()- 0\n") );
+ return 0;
+}
+
+static void printpm(struct cs_card *s)
+{
+ CS_DBGOUT(CS_PM, 9, printk("pm struct:\n"));
+ CS_DBGOUT(CS_PM, 9, printk("flags:0x%x u32CLKCR1_SAVE: 0%x u32SSPMValue: 0x%x\n",
+ (unsigned)s->pm.flags,s->pm.u32CLKCR1_SAVE,s->pm.u32SSPMValue));
+ CS_DBGOUT(CS_PM, 9, printk("u32PPLVCvalue: 0x%x u32PPRVCvalue: 0x%x\n",
+ s->pm.u32PPLVCvalue,s->pm.u32PPRVCvalue));
+ CS_DBGOUT(CS_PM, 9, printk("u32FMLVCvalue: 0x%x u32FMRVCvalue: 0x%x\n",
+ s->pm.u32FMLVCvalue,s->pm.u32FMRVCvalue));
+ CS_DBGOUT(CS_PM, 9, printk("u32GPIORvalue: 0x%x u32JSCTLvalue: 0x%x\n",
+ s->pm.u32GPIORvalue,s->pm.u32JSCTLvalue));
+ CS_DBGOUT(CS_PM, 9, printk("u32SSCR: 0x%x u32SRCSA: 0x%x\n",
+ s->pm.u32SSCR,s->pm.u32SRCSA));
+ CS_DBGOUT(CS_PM, 9, printk("u32DacASR: 0x%x u32AdcASR: 0x%x\n",
+ s->pm.u32DacASR,s->pm.u32AdcASR));
+ CS_DBGOUT(CS_PM, 9, printk("u32DacSR: 0x%x u32AdcSR: 0x%x\n",
+ s->pm.u32DacSR,s->pm.u32AdcSR));
+ CS_DBGOUT(CS_PM, 9, printk("u32MIDCR_Save: 0x%x\n",
+ s->pm.u32MIDCR_Save));
+ CS_DBGOUT(CS_PM, 9, printk("u32AC97_powerdown: 0x%x _general_purpose 0x%x\n",
+ s->pm.u32AC97_powerdown,s->pm.u32AC97_general_purpose));
+ CS_DBGOUT(CS_PM, 9, printk("u32AC97_master_volume: 0x%x\n",
+ s->pm.u32AC97_master_volume));
+ CS_DBGOUT(CS_PM, 9, printk("u32AC97_headphone_volume: 0x%x\n",
+ s->pm.u32AC97_headphone_volume));
+ CS_DBGOUT(CS_PM, 9, printk("u32AC97_master_volume_mono: 0x%x\n",
+ s->pm.u32AC97_master_volume_mono));
+ CS_DBGOUT(CS_PM, 9, printk("u32AC97_pcm_out_volume: 0x%x\n",
+ s->pm.u32AC97_pcm_out_volume));
+ CS_DBGOUT(CS_PM, 9, printk("dmabuf_swptr_play: 0x%x dmabuf_count_play: %d\n",
+ s->pm.dmabuf_swptr_play,s->pm.dmabuf_count_play));
+ CS_DBGOUT(CS_PM, 9, printk("dmabuf_swptr_capture: 0x%x dmabuf_count_capture: %d\n",
+ s->pm.dmabuf_swptr_capture,s->pm.dmabuf_count_capture));
+
+}
+
+/****************************************************************************
+*
+* Suspend - save the ac97 regs, mute the outputs and power down the part.
+*
+****************************************************************************/
+static void cs46xx_ac97_suspend(struct cs_card *card)
+{
+ int Count,i;
+ struct ac97_codec *dev=card->ac97_codec[0];
+ unsigned int tmp;
+
+ CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_suspend()+\n"));
+
+ if(card->states[1])
+ {
+ stop_dac(card->states[1]);
+ resync_dma_ptrs(card->states[1]);
+ }
+ if(card->states[0])
+ {
+ stop_adc(card->states[0]);
+ resync_dma_ptrs(card->states[0]);
+ }
+
+ for(Count = 0x2, i=0; (Count <= CS46XX_AC97_HIGHESTREGTORESTORE)
+ && (i < CS46XX_AC97_NUMBER_RESTORE_REGS);
+ Count += 2, i++)
+ {
+ card->pm.ac97[i] = cs_ac97_get(dev, BA0_AC97_RESET + Count);
+ }
+/*
+* Save the ac97 volume registers as well as the current powerdown state.
+* Now, mute the all the outputs (master, headphone, and mono), as well
+* as the PCM volume, in preparation for powering down the entire part.
+ card->pm.u32AC97_master_volume = (u32)cs_ac97_get( dev,
+ (u8)BA0_AC97_MASTER_VOLUME);
+ card->pm.u32AC97_headphone_volume = (u32)cs_ac97_get(dev,
+ (u8)BA0_AC97_HEADPHONE_VOLUME);
+ card->pm.u32AC97_master_volume_mono = (u32)cs_ac97_get(dev,
+ (u8)BA0_AC97_MASTER_VOLUME_MONO);
+ card->pm.u32AC97_pcm_out_volume = (u32)cs_ac97_get(dev,
+ (u8)BA0_AC97_PCM_OUT_VOLUME);
+*/
+/*
+* mute the outputs
+*/
+ cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME, 0x8000);
+ cs_ac97_set(dev, (u8)BA0_AC97_HEADPHONE_VOLUME, 0x8000);
+ cs_ac97_set(dev, (u8)BA0_AC97_MASTER_VOLUME_MONO, 0x8000);
+ cs_ac97_set(dev, (u8)BA0_AC97_PCM_OUT_VOLUME, 0x8000);
+
+/*
+* save the registers that cause pops
+*/
+ card->pm.u32AC97_powerdown = (u32)cs_ac97_get(dev, (u8)AC97_POWER_CONTROL);
+ card->pm.u32AC97_general_purpose = (u32)cs_ac97_get(dev, (u8)BA0_AC97_GENERAL_PURPOSE);
+/*
+* And power down everything on the AC97 codec.
+* well, for now, only power down the DAC/ADC and MIXER VREFON components.
+* trouble with removing VREF.
+*/
+ if( (tmp = cs461x_powerdown(card, CS_POWER_DAC | CS_POWER_ADC |
+ CS_POWER_MIXVON, CS_TRUE )) )
+ {
+ CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
+ "cs46xx: cs46xx_ac97_suspend() failure (0x%x)\n",tmp) );
+ }
+
+ CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_suspend()-\n"));
+}
+
+/****************************************************************************
+*
+* Resume - power up the part and restore its registers..
+*
+****************************************************************************/
+static void cs46xx_ac97_resume(struct cs_card *card)
+{
+ int Count,i;
+ struct ac97_codec *dev=card->ac97_codec[0];
+
+ CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_resume()+\n"));
+
+/*
+* First, we restore the state of the general purpose register. This
+* contains the mic select (mic1 or mic2) and if we restore this after
+* we restore the mic volume/boost state and mic2 was selected at
+* suspend time, we will end up with a brief period of time where mic1
+* is selected with the volume/boost settings for mic2, causing
+* acoustic feedback. So we restore the general purpose register
+* first, thereby getting the correct mic selected before we restore
+* the mic volume/boost.
+*/
+ cs_ac97_set(dev, (u8)BA0_AC97_GENERAL_PURPOSE,
+ (u16)card->pm.u32AC97_general_purpose);
+/*
+* Now, while the outputs are still muted, restore the state of power
+* on the AC97 part.
+*/
+ cs_ac97_set(dev, (u8)BA0_AC97_POWERDOWN, (u16)card->pm.u32AC97_powerdown);
+ mdelay(5 * cs_laptop_wait);
+/*
+* Restore just the first set of registers, from register number
+* 0x02 to the register number that ulHighestRegToRestore specifies.
+*/
+ for( Count = 0x2, i=0;
+ (Count <= CS46XX_AC97_HIGHESTREGTORESTORE)
+ && (i < CS46XX_AC97_NUMBER_RESTORE_REGS);
+ Count += 2, i++)
+ {
+ cs_ac97_set(dev, (u8)(BA0_AC97_RESET + Count), (u16)card->pm.ac97[i]);
+ }
+
+ /* Check if we have to init the amplifier */
+ if(card->amp_init)
+ card->amp_init(card);
+
+ CS_DBGOUT(CS_PM, 9, printk("cs46xx: cs46xx_ac97_resume()-\n"));
+}
+
+
+static int cs46xx_restart_part(struct cs_card *card)
+{
+ struct dmabuf *dmabuf;
+ CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
+ printk( "cs46xx: cs46xx_restart_part()+\n"));
+ if(card->states[1])
+ {
+ dmabuf = &card->states[1]->dmabuf;
+ dmabuf->ready = 0;
+ resync_dma_ptrs(card->states[1]);
+ cs_set_divisor(dmabuf);
+ if(__prog_dmabuf(card->states[1]))
+ {
+ CS_DBGOUT(CS_PM | CS_ERROR, 1,
+ printk("cs46xx: cs46xx_restart_part()- (-1) prog_dmabuf() dac error\n"));
+ return -1;
+ }
+ cs_set_dac_rate(card->states[1], dmabuf->rate);
+ }
+ if(card->states[0])
+ {
+ dmabuf = &card->states[0]->dmabuf;
+ dmabuf->ready = 0;
+ resync_dma_ptrs(card->states[0]);
+ cs_set_divisor(dmabuf);
+ if(__prog_dmabuf(card->states[0]))
+ {
+ CS_DBGOUT(CS_PM | CS_ERROR, 1,
+ printk("cs46xx: cs46xx_restart_part()- (-1) prog_dmabuf() adc error\n"));
+ return -1;
+ }
+ cs_set_adc_rate(card->states[0], dmabuf->rate);
+ }
+ card->pm.flags |= CS46XX_PM_RESUMED;
+ if(card->states[0])
+ start_adc(card->states[0]);
+ if(card->states[1])
+ start_dac(card->states[1]);
+
+ card->pm.flags |= CS46XX_PM_IDLE;
+ card->pm.flags &= ~(CS46XX_PM_SUSPENDING | CS46XX_PM_SUSPENDED
+ | CS46XX_PM_RESUMING | CS46XX_PM_RESUMED);
+ if(card->states[0])
+ wake_up(&card->states[0]->dmabuf.wait);
+ if(card->states[1])
+ wake_up(&card->states[1]->dmabuf.wait);
+
+ CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
+ printk( "cs46xx: cs46xx_restart_part()-\n"));
+ return 0;
+}
+
+
+static void cs461x_reset(struct cs_card *card);
+static void cs461x_proc_stop(struct cs_card *card);
+static int cs46xx_suspend(struct cs_card *card, u32 state)
+{
+ unsigned int tmp;
+ CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
+ printk("cs46xx: cs46xx_suspend()+ flags=0x%x s=%p\n",
+ (unsigned)card->pm.flags,card));
+/*
+* check the current state, only suspend if IDLE
+*/
+ if(!(card->pm.flags & CS46XX_PM_IDLE))
+ {
+ CS_DBGOUT(CS_PM | CS_ERROR, 2,
+ printk("cs46xx: cs46xx_suspend() unable to suspend, not IDLE\n"));
+ return 1;
+ }
+ card->pm.flags &= ~CS46XX_PM_IDLE;
+ card->pm.flags |= CS46XX_PM_SUSPENDING;
+
+ card->active_ctrl(card,1);
+
+ tmp = cs461x_peek(card, BA1_PFIE);
+ tmp &= ~0x0000f03f;
+ tmp |= 0x00000010;
+ cs461x_poke(card, BA1_PFIE, tmp); /* playback interrupt disable */
+
+ tmp = cs461x_peek(card, BA1_CIE);
+ tmp &= ~0x0000003f;
+ tmp |= 0x00000011;
+ cs461x_poke(card, BA1_CIE, tmp); /* capture interrupt disable */
+
+ /*
+ * Stop playback DMA.
+ */
+ tmp = cs461x_peek(card, BA1_PCTL);
+ cs461x_poke(card, BA1_PCTL, tmp & 0x0000ffff);
+
+ /*
+ * Stop capture DMA.
+ */
+ tmp = cs461x_peek(card, BA1_CCTL);
+ cs461x_poke(card, BA1_CCTL, tmp & 0xffff0000);
+
+ if(card->states[1])
+ {
+ card->pm.dmabuf_swptr_play = card->states[1]->dmabuf.swptr;
+ card->pm.dmabuf_count_play = card->states[1]->dmabuf.count;
+ }
+ if(card->states[0])
+ {
+ card->pm.dmabuf_swptr_capture = card->states[0]->dmabuf.swptr;
+ card->pm.dmabuf_count_capture = card->states[0]->dmabuf.count;
+ }
+
+ cs46xx_ac97_suspend(card);
+
+ /*
+ * Reset the processor.
+ */
+ cs461x_reset(card);
+
+ cs461x_proc_stop(card);
+
+ /*
+ * Power down the DAC and ADC. For now leave the other areas on.
+ */
+ cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, 0x0300);
+
+ /*
+ * Power down the PLL.
+ */
+ cs461x_pokeBA0(card, BA0_CLKCR1, 0);
+
+ /*
+ * Turn off the Processor by turning off the software clock enable flag in
+ * the clock control register.
+ */
+ tmp = cs461x_peekBA0(card, BA0_CLKCR1) & ~CLKCR1_SWCE;
+ cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
+
+ card->active_ctrl(card,-1);
+
+ card->pm.flags &= ~CS46XX_PM_SUSPENDING;
+ card->pm.flags |= CS46XX_PM_SUSPENDED;
+
+ printpm(card);
+
+ CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
+ printk("cs46xx: cs46xx_suspend()- flags=0x%x\n",
+ (unsigned)card->pm.flags));
+ return 0;
+}
+
+static int cs46xx_resume(struct cs_card *card)
+{
+ int i;
+
+ CS_DBGOUT(CS_PM | CS_FUNCTION, 4,
+ printk( "cs46xx: cs46xx_resume()+ flags=0x%x\n",
+ (unsigned)card->pm.flags));
+ if(!(card->pm.flags & CS46XX_PM_SUSPENDED))
+ {
+ CS_DBGOUT(CS_PM | CS_ERROR, 2,
+ printk("cs46xx: cs46xx_resume() unable to resume, not SUSPENDED\n"));
+ return 1;
+ }
+ card->pm.flags |= CS46XX_PM_RESUMING;
+ card->pm.flags &= ~CS46XX_PM_SUSPENDED;
+ printpm(card);
+ card->active_ctrl(card, 1);
+
+ for(i=0;i<5;i++)
+ {
+ if (cs_hardware_init(card) != 0)
+ {
+ CS_DBGOUT(CS_PM | CS_ERROR, 4, printk(
+ "cs46xx: cs46xx_resume()- ERROR in cs_hardware_init()\n"));
+ mdelay(10 * cs_laptop_wait);
+ cs461x_reset(card);
+ continue;
+ }
+ break;
+ }
+ if(i>=4)
+ {
+ CS_DBGOUT(CS_PM | CS_ERROR, 1, printk(
+ "cs46xx: cs46xx_resume()- cs_hardware_init() failed, retried %d times.\n",i));
+ return 0;
+ }
+
+ if(cs46xx_restart_part(card))
+ {
+ CS_DBGOUT(CS_PM | CS_ERROR, 4, printk(
+ "cs46xx: cs46xx_resume(): cs46xx_restart_part() returned error\n"));
+ }
+
+ card->active_ctrl(card, -1);
+
+ CS_DBGOUT(CS_PM | CS_FUNCTION, 4, printk("cs46xx: cs46xx_resume()- flags=0x%x\n",
+ (unsigned)card->pm.flags));
+ return 0;
+}
+
+static /*const*/ struct file_operations cs461x_fops = {
+ CS_OWNER CS_THIS_MODULE
+ .llseek = no_llseek,
+ .read = cs_read,
+ .write = cs_write,
+ .poll = cs_poll,
+ .ioctl = cs_ioctl,
+ .mmap = cs_mmap,
+ .open = cs_open,
+ .release = cs_release,
+};
+
+/* Write AC97 codec registers */
+
+
+static u16 _cs_ac97_get(struct ac97_codec *dev, u8 reg)
+{
+ struct cs_card *card = dev->private_data;
+ int count,loopcnt;
+ unsigned int tmp;
+ u16 ret;
+
+ /*
+ * 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
+ * 2. Write ACCDA = Command Data Register = 470h for data to write to AC97
+ * 3. Write ACCTL = Control Register = 460h for initiating the write
+ * 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 17h
+ * 5. if DCV not cleared, break and return error
+ * 6. Read ACSTS = Status Register = 464h, check VSTS bit
+ */
+
+ cs461x_peekBA0(card, BA0_ACSDA);
+
+ /*
+ * Setup the AC97 control registers on the CS461x to send the
+ * appropriate command to the AC97 to perform the read.
+ * ACCAD = Command Address Register = 46Ch
+ * ACCDA = Command Data Register = 470h
+ * ACCTL = Control Register = 460h
+ * set DCV - will clear when process completed
+ * set CRW - Read command
+ * set VFRM - valid frame enabled
+ * set ESYN - ASYNC generation enabled
+ * set RSTN - ARST# inactive, AC97 codec not reset
+ */
+
+ cs461x_pokeBA0(card, BA0_ACCAD, reg);
+ cs461x_pokeBA0(card, BA0_ACCDA, 0);
+ cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_DCV | ACCTL_CRW |
+ ACCTL_VFRM | ACCTL_ESYN |
+ ACCTL_RSTN);
+
+
+ /*
+ * Wait for the read to occur.
+ */
+ if(!(card->pm.flags & CS46XX_PM_IDLE))
+ loopcnt = 2000;
+ else
+ loopcnt = 500 * cs_laptop_wait;
+ loopcnt *= cs_laptop_wait;
+ for (count = 0; count < loopcnt; count++) {
+ /*
+ * First, we want to wait for a short time.
+ */
+ udelay(10 * cs_laptop_wait);
+ /*
+ * Now, check to see if the read has completed.
+ * ACCTL = 460h, DCV should be reset by now and 460h = 17h
+ */
+ if (!(cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV))
+ break;
+ }
+
+ /*
+ * Make sure the read completed.
+ */
+ if (cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV) {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
+ "cs46xx: AC'97 read problem (ACCTL_DCV), reg = 0x%x returning 0xffff\n", reg));
+ return 0xffff;
+ }
+
+ /*
+ * Wait for the valid status bit to go active.
+ */
+
+ if(!(card->pm.flags & CS46XX_PM_IDLE))
+ loopcnt = 2000;
+ else
+ loopcnt = 1000;
+ loopcnt *= cs_laptop_wait;
+ for (count = 0; count < loopcnt; count++) {
+ /*
+ * Read the AC97 status register.
+ * ACSTS = Status Register = 464h
+ * VSTS - Valid Status
+ */
+ if (cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_VSTS)
+ break;
+ udelay(10 * cs_laptop_wait);
+ }
+
+ /*
+ * Make sure we got valid status.
+ */
+ if (!( (tmp=cs461x_peekBA0(card, BA0_ACSTS)) & ACSTS_VSTS)) {
+ CS_DBGOUT(CS_ERROR, 2, printk(KERN_WARNING
+ "cs46xx: AC'97 read problem (ACSTS_VSTS), reg = 0x%x val=0x%x 0xffff \n",
+ reg, tmp));
+ return 0xffff;
+ }
+
+ /*
+ * Read the data returned from the AC97 register.
+ * ACSDA = Status Data Register = 474h
+ */
+ CS_DBGOUT(CS_FUNCTION, 9, printk(KERN_INFO
+ "cs46xx: cs_ac97_get() reg = 0x%x, val = 0x%x, BA0_ACCAD = 0x%x\n",
+ reg, cs461x_peekBA0(card, BA0_ACSDA),
+ cs461x_peekBA0(card, BA0_ACCAD)));
+ ret = cs461x_peekBA0(card, BA0_ACSDA);
+ return ret;
+}
+
+static u16 cs_ac97_get(struct ac97_codec *dev, u8 reg)
+{
+ u16 ret;
+ struct cs_card *card = dev->private_data;
+
+ spin_lock(&card->ac97_lock);
+ ret = _cs_ac97_get(dev, reg);
+ spin_unlock(&card->ac97_lock);
+ return ret;
+}
+
+static void cs_ac97_set(struct ac97_codec *dev, u8 reg, u16 val)
+{
+ struct cs_card *card = dev->private_data;
+ int count;
+ int val2 = 0;
+
+ spin_lock(&card->ac97_lock);
+
+ if(reg == AC97_CD_VOL)
+ {
+ val2 = _cs_ac97_get(dev, AC97_CD_VOL);
+ }
+
+
+ /*
+ * 1. Write ACCAD = Command Address Register = 46Ch for AC97 register address
+ * 2. Write ACCDA = Command Data Register = 470h for data to write to AC97
+ * 3. Write ACCTL = Control Register = 460h for initiating the write
+ * 4. Read ACCTL = 460h, DCV should be reset by now and 460h = 07h
+ * 5. if DCV not cleared, break and return error
+ */
+
+ /*
+ * Setup the AC97 control registers on the CS461x to send the
+ * appropriate command to the AC97 to perform the read.
+ * ACCAD = Command Address Register = 46Ch
+ * ACCDA = Command Data Register = 470h
+ * ACCTL = Control Register = 460h
+ * set DCV - will clear when process completed
+ * reset CRW - Write command
+ * set VFRM - valid frame enabled
+ * set ESYN - ASYNC generation enabled
+ * set RSTN - ARST# inactive, AC97 codec not reset
+ */
+ cs461x_pokeBA0(card, BA0_ACCAD, reg);
+ cs461x_pokeBA0(card, BA0_ACCDA, val);
+ cs461x_peekBA0(card, BA0_ACCTL);
+ cs461x_pokeBA0(card, BA0_ACCTL, 0 | ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
+ cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_DCV | ACCTL_VFRM |
+ ACCTL_ESYN | ACCTL_RSTN);
+ for (count = 0; count < 1000; count++) {
+ /*
+ * First, we want to wait for a short time.
+ */
+ udelay(10 * cs_laptop_wait);
+ /*
+ * Now, check to see if the write has completed.
+ * ACCTL = 460h, DCV should be reset by now and 460h = 07h
+ */
+ if (!(cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV))
+ break;
+ }
+ /*
+ * Make sure the write completed.
+ */
+ if (cs461x_peekBA0(card, BA0_ACCTL) & ACCTL_DCV)
+ {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
+ "cs46xx: AC'97 write problem, reg = 0x%x, val = 0x%x\n", reg, val));
+ }
+
+ spin_unlock(&card->ac97_lock);
+
+ /*
+ * Adjust power if the mixer is selected/deselected according
+ * to the CD.
+ *
+ * IF the CD is a valid input source (mixer or direct) AND
+ * the CD is not muted THEN power is needed
+ *
+ * We do two things. When record select changes the input to
+ * add/remove the CD we adjust the power count if the CD is
+ * unmuted.
+ *
+ * When the CD mute changes we adjust the power level if the
+ * CD was a valid input.
+ *
+ * We also check for CD volume != 0, as the CD mute isn't
+ * normally tweaked from userspace.
+ */
+
+ /* CD mute change ? */
+
+ if(reg==AC97_CD_VOL)
+ {
+ /* Mute bit change ? */
+ if((val2^val)&0x8000 || ((val2 == 0x1f1f || val == 0x1f1f) && val2 != val))
+ {
+ /* This is a hack but its cleaner than the alternatives.
+ Right now card->ac97_codec[0] might be NULL as we are
+ still doing codec setup. This does an early assignment
+ to avoid the problem if it occurs */
+
+ if(card->ac97_codec[0]==NULL)
+ card->ac97_codec[0]=dev;
+
+ /* Mute on */
+ if(val&0x8000 || val == 0x1f1f)
+ card->amplifier_ctrl(card, -1);
+ else /* Mute off power on */
+ {
+ if(card->amp_init)
+ card->amp_init(card);
+ card->amplifier_ctrl(card, 1);
+ }
+ }
+ }
+}
+
+
+/* OSS /dev/mixer file operation methods */
+
+static int cs_open_mixdev(struct inode *inode, struct file *file)
+{
+ int i=0;
+ unsigned int minor = iminor(inode);
+ struct cs_card *card=NULL;
+ struct list_head *entry;
+ unsigned int tmp;
+
+ CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4,
+ printk(KERN_INFO "cs46xx: cs_open_mixdev()+\n"));
+
+ list_for_each(entry, &cs46xx_devs)
+ {
+ card = list_entry(entry, struct cs_card, list);
+ for (i = 0; i < NR_AC97; i++)
+ if (card->ac97_codec[i] != NULL &&
+ card->ac97_codec[i]->dev_mixer == minor)
+ goto match;
+ }
+ if (!card)
+ {
+ CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2,
+ printk(KERN_INFO "cs46xx: cs46xx_open_mixdev()- -ENODEV\n"));
+ return -ENODEV;
+ }
+ match:
+ if(!card->ac97_codec[i])
+ return -ENODEV;
+ file->private_data = card->ac97_codec[i];
+
+ card->active_ctrl(card,1);
+ if(!CS_IN_USE(&card->mixer_use_cnt))
+ {
+ if( (tmp = cs46xx_powerup(card, CS_POWER_MIXVON )) )
+ {
+ CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
+ "cs46xx: cs_open_mixdev() powerup failure (0x%x)\n",tmp) );
+ return -EIO;
+ }
+ }
+ card->amplifier_ctrl(card, 1);
+ CS_INC_USE_COUNT(&card->mixer_use_cnt);
+ CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4,
+ printk(KERN_INFO "cs46xx: cs_open_mixdev()- 0\n"));
+ return nonseekable_open(inode, file);
+}
+
+static int cs_release_mixdev(struct inode *inode, struct file *file)
+{
+ unsigned int minor = iminor(inode);
+ struct cs_card *card=NULL;
+ struct list_head *entry;
+ int i;
+ unsigned int tmp;
+
+ CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 4,
+ printk(KERN_INFO "cs46xx: cs_release_mixdev()+\n"));
+ list_for_each(entry, &cs46xx_devs)
+ {
+ card = list_entry(entry, struct cs_card, list);
+ for (i = 0; i < NR_AC97; i++)
+ if (card->ac97_codec[i] != NULL &&
+ card->ac97_codec[i]->dev_mixer == minor)
+ goto match;
+ }
+ if (!card)
+ {
+ CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2,
+ printk(KERN_INFO "cs46xx: cs46xx_open_mixdev()- -ENODEV\n"));
+ return -ENODEV;
+ }
+match:
+ if(!CS_DEC_AND_TEST(&card->mixer_use_cnt))
+ {
+ CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 4,
+ printk(KERN_INFO "cs46xx: cs_release_mixdev()- no powerdown, usecnt>0\n"));
+ card->active_ctrl(card, -1);
+ card->amplifier_ctrl(card, -1);
+ return 0;
+ }
+/*
+* ok, no outstanding mixer opens, so powerdown.
+*/
+ if( (tmp = cs461x_powerdown(card, CS_POWER_MIXVON, CS_FALSE )) )
+ {
+ CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
+ "cs46xx: cs_release_mixdev() powerdown MIXVON failure (0x%x)\n",tmp) );
+ card->active_ctrl(card, -1);
+ card->amplifier_ctrl(card, -1);
+ return -EIO;
+ }
+ card->active_ctrl(card, -1);
+ card->amplifier_ctrl(card, -1);
+ CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 4,
+ printk(KERN_INFO "cs46xx: cs_release_mixdev()- 0\n"));
+ return 0;
+}
+
+static int cs_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct ac97_codec *codec = (struct ac97_codec *)file->private_data;
+ struct cs_card *card=NULL;
+ struct list_head *entry;
+ unsigned long __user *p = (long __user *)arg;
+
+#if CSDEBUG_INTERFACE
+ int val;
+
+ if( (cmd == SOUND_MIXER_CS_GETDBGMASK) ||
+ (cmd == SOUND_MIXER_CS_SETDBGMASK) ||
+ (cmd == SOUND_MIXER_CS_GETDBGLEVEL) ||
+ (cmd == SOUND_MIXER_CS_SETDBGLEVEL) ||
+ (cmd == SOUND_MIXER_CS_APM))
+ {
+ switch(cmd)
+ {
+
+ case SOUND_MIXER_CS_GETDBGMASK:
+ return put_user(cs_debugmask, p);
+
+ case SOUND_MIXER_CS_GETDBGLEVEL:
+ return put_user(cs_debuglevel, p);
+
+ case SOUND_MIXER_CS_SETDBGMASK:
+ if (get_user(val, p))
+ return -EFAULT;
+ cs_debugmask = val;
+ return 0;
+
+ case SOUND_MIXER_CS_SETDBGLEVEL:
+ if (get_user(val, p))
+ return -EFAULT;
+ cs_debuglevel = val;
+ return 0;
+
+ case SOUND_MIXER_CS_APM:
+ if (get_user(val, p))
+ return -EFAULT;
+ if(val == CS_IOCTL_CMD_SUSPEND)
+ {
+ list_for_each(entry, &cs46xx_devs)
+ {
+ card = list_entry(entry, struct cs_card, list);
+ cs46xx_suspend(card, 0);
+ }
+
+ }
+ else if(val == CS_IOCTL_CMD_RESUME)
+ {
+ list_for_each(entry, &cs46xx_devs)
+ {
+ card = list_entry(entry, struct cs_card, list);
+ cs46xx_resume(card);
+ }
+ }
+ else
+ {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
+ "cs46xx: mixer_ioctl(): invalid APM cmd (%d)\n",
+ val));
+ }
+ return 0;
+
+ default:
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO
+ "cs46xx: mixer_ioctl(): ERROR unknown debug cmd\n") );
+ return 0;
+ }
+ }
+#endif
+ return codec->mixer_ioctl(codec, cmd, arg);
+}
+
+static /*const*/ struct file_operations cs_mixer_fops = {
+ CS_OWNER CS_THIS_MODULE
+ .llseek = no_llseek,
+ .ioctl = cs_ioctl_mixdev,
+ .open = cs_open_mixdev,
+ .release = cs_release_mixdev,
+};
+
+/* AC97 codec initialisation. */
+static int __init cs_ac97_init(struct cs_card *card)
+{
+ int num_ac97 = 0;
+ int ready_2nd = 0;
+ struct ac97_codec *codec;
+ u16 eid;
+
+ CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
+ "cs46xx: cs_ac97_init()+\n") );
+
+ for (num_ac97 = 0; num_ac97 < NR_AC97; num_ac97++) {
+ if ((codec = ac97_alloc_codec()) == NULL)
+ return -ENOMEM;
+
+ /* initialize some basic codec information, other fields will be filled
+ in ac97_probe_codec */
+ codec->private_data = card;
+ codec->id = num_ac97;
+
+ codec->codec_read = cs_ac97_get;
+ codec->codec_write = cs_ac97_set;
+
+ if (ac97_probe_codec(codec) == 0)
+ {
+ CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
+ "cs46xx: cs_ac97_init()- codec number %d not found\n",
+ num_ac97) );
+ card->ac97_codec[num_ac97] = NULL;
+ break;
+ }
+ CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
+ "cs46xx: cs_ac97_init() found codec %d\n",num_ac97) );
+
+ eid = cs_ac97_get(codec, AC97_EXTENDED_ID);
+
+ if(eid==0xFFFF)
+ {
+ printk(KERN_WARNING "cs46xx: codec %d not present\n",num_ac97);
+ ac97_release_codec(codec);
+ break;
+ }
+
+ card->ac97_features = eid;
+
+ if ((codec->dev_mixer = register_sound_mixer(&cs_mixer_fops, -1)) < 0) {
+ printk(KERN_ERR "cs46xx: couldn't register mixer!\n");
+ ac97_release_codec(codec);
+ break;
+ }
+ card->ac97_codec[num_ac97] = codec;
+
+ CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
+ "cs46xx: cs_ac97_init() ac97_codec[%d] set to %p\n",
+ (unsigned int)num_ac97,
+ codec));
+ /* if there is no secondary codec at all, don't probe any more */
+ if (!ready_2nd)
+ {
+ num_ac97 += 1;
+ break;
+ }
+ }
+ CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
+ "cs46xx: cs_ac97_init()- %d\n", (unsigned int)num_ac97));
+ return num_ac97;
+}
+
+/*
+ * load the static image into the DSP
+ */
+#include "cs461x_image.h"
+static void cs461x_download_image(struct cs_card *card)
+{
+ unsigned i, j, temp1, temp2, offset, count;
+ unsigned char __iomem *pBA1 = ioremap(card->ba1_addr, 0x40000);
+ for( i=0; i < CLEAR__COUNT; i++)
+ {
+ offset = ClrStat[i].BA1__DestByteOffset;
+ count = ClrStat[i].BA1__SourceSize;
+ for( temp1 = offset; temp1<(offset+count); temp1+=4 )
+ writel(0, pBA1+temp1);
+ }
+
+ for(i=0; i<FILL__COUNT; i++)
+ {
+ temp2 = FillStat[i].Offset;
+ for(j=0; j<(FillStat[i].Size)/4; j++)
+ {
+ temp1 = (FillStat[i]).pFill[j];
+ writel(temp1, pBA1+temp2+j*4);
+ }
+ }
+ iounmap(pBA1);
+}
+
+
+/*
+ * Chip reset
+ */
+
+static void cs461x_reset(struct cs_card *card)
+{
+ int idx;
+
+ /*
+ * Write the reset bit of the SP control register.
+ */
+ cs461x_poke(card, BA1_SPCR, SPCR_RSTSP);
+
+ /*
+ * Write the control register.
+ */
+ cs461x_poke(card, BA1_SPCR, SPCR_DRQEN);
+
+ /*
+ * Clear the trap registers.
+ */
+ for (idx = 0; idx < 8; idx++) {
+ cs461x_poke(card, BA1_DREG, DREG_REGID_TRAP_SELECT + idx);
+ cs461x_poke(card, BA1_TWPR, 0xFFFF);
+ }
+ cs461x_poke(card, BA1_DREG, 0);
+
+ /*
+ * Set the frame timer to reflect the number of cycles per frame.
+ */
+ cs461x_poke(card, BA1_FRMT, 0xadf);
+}
+
+static void cs461x_clear_serial_FIFOs(struct cs_card *card, int type)
+{
+ int idx, loop, startfifo=0, endfifo=0, powerdown1 = 0;
+ unsigned int tmp;
+
+ /*
+ * See if the devices are powered down. If so, we must power them up first
+ * or they will not respond.
+ */
+ if (!((tmp = cs461x_peekBA0(card, BA0_CLKCR1)) & CLKCR1_SWCE)) {
+ cs461x_pokeBA0(card, BA0_CLKCR1, tmp | CLKCR1_SWCE);
+ powerdown1 = 1;
+ }
+
+ /*
+ * We want to clear out the serial port FIFOs so we don't end up playing
+ * whatever random garbage happens to be in them. We fill the sample FIFOS
+ * with zero (silence).
+ */
+ cs461x_pokeBA0(card, BA0_SERBWP, 0);
+
+ /*
+ * Check for which FIFO locations to clear, if we are currently
+ * playing or capturing then we don't want to put in 128 bytes of
+ * "noise".
+ */
+ if(type & CS_TYPE_DAC)
+ {
+ startfifo = 128;
+ endfifo = 256;
+ }
+ if(type & CS_TYPE_ADC)
+ {
+ startfifo = 0;
+ if(!endfifo)
+ endfifo = 128;
+ }
+ /*
+ * Fill sample FIFO locations (256 locations total).
+ */
+ for (idx = startfifo; idx < endfifo; idx++) {
+ /*
+ * Make sure the previous FIFO write operation has completed.
+ */
+ for (loop = 0; loop < 5; loop++) {
+ udelay(50);
+ if (!(cs461x_peekBA0(card, BA0_SERBST) & SERBST_WBSY))
+ break;
+ }
+ if (cs461x_peekBA0(card, BA0_SERBST) & SERBST_WBSY) {
+ if (powerdown1)
+ cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
+ }
+ /*
+ * Write the serial port FIFO index.
+ */
+ cs461x_pokeBA0(card, BA0_SERBAD, idx);
+ /*
+ * Tell the serial port to load the new value into the FIFO location.
+ */
+ cs461x_pokeBA0(card, BA0_SERBCM, SERBCM_WRC);
+ }
+ /*
+ * Now, if we powered up the devices, then power them back down again.
+ * This is kinda ugly, but should never happen.
+ */
+ if (powerdown1)
+ cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
+}
+
+
+static int cs461x_powerdown(struct cs_card *card, unsigned int type, int suspendflag)
+{
+ int count;
+ unsigned int tmp=0,muted=0;
+
+ CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO
+ "cs46xx: cs461x_powerdown()+ type=0x%x\n",type));
+ if(!cs_powerdown && !suspendflag)
+ {
+ CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO
+ "cs46xx: cs461x_powerdown() DISABLED exiting\n"));
+ return 0;
+ }
+ tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
+ CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO
+ "cs46xx: cs461x_powerdown() powerdown reg=0x%x\n",tmp));
+/*
+* if powering down only the VREF, and not powering down the DAC/ADC,
+* then do not power down the VREF, UNLESS both the DAC and ADC are not
+* currently powered down. If powering down DAC and ADC, then
+* it is possible to power down the VREF (ON).
+*/
+ if ( ((type & CS_POWER_MIXVON) &&
+ (!(type & CS_POWER_ADC) || (!(type & CS_POWER_DAC))) )
+ &&
+ ((tmp & CS_AC97_POWER_CONTROL_ADC_ON) ||
+ (tmp & CS_AC97_POWER_CONTROL_DAC_ON) ) )
+ {
+ CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO
+ "cs46xx: cs461x_powerdown()- 0 unable to powerdown. tmp=0x%x\n",tmp));
+ return 0;
+ }
+/*
+* for now, always keep power to the mixer block.
+* not sure why it's a problem but it seems to be if we power off.
+*/
+ type &= ~CS_POWER_MIXVON;
+ type &= ~CS_POWER_MIXVOFF;
+
+ /*
+ * Power down indicated areas.
+ */
+ if(type & CS_POWER_MIXVOFF)
+ {
+
+ CS_DBGOUT(CS_FUNCTION, 4,
+ printk(KERN_INFO "cs46xx: cs461x_powerdown()+ MIXVOFF\n"));
+ /*
+ * Power down the MIXER (VREF ON) on the AC97 card.
+ */
+ tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
+ if (tmp & CS_AC97_POWER_CONTROL_MIXVOFF_ON)
+ {
+ if(!muted)
+ {
+ cs_mute(card, CS_TRUE);
+ muted=1;
+ }
+ tmp |= CS_AC97_POWER_CONTROL_MIXVOFF;
+ cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
+ /*
+ * Now, we wait until we sample a ready state.
+ */
+ for (count = 0; count < 32; count++) {
+ /*
+ * First, lets wait a short while to let things settle out a
+ * bit, and to prevent retrying the read too quickly.
+ */
+ udelay(500);
+
+ /*
+ * Read the current state of the power control register.
+ */
+ if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_MIXVOFF_ON))
+ break;
+ }
+
+ /*
+ * Check the status..
+ */
+ if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_MIXVOFF_ON)
+ {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
+ "cs46xx: powerdown MIXVOFF failed\n"));
+ return 1;
+ }
+ }
+ }
+ if(type & CS_POWER_MIXVON)
+ {
+
+ CS_DBGOUT(CS_FUNCTION, 4,
+ printk(KERN_INFO "cs46xx: cs461x_powerdown()+ MIXVON\n"));
+ /*
+ * Power down the MIXER (VREF ON) on the AC97 card.
+ */
+ tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
+ if (tmp & CS_AC97_POWER_CONTROL_MIXVON_ON)
+ {
+ if(!muted)
+ {
+ cs_mute(card, CS_TRUE);
+ muted=1;
+ }
+ tmp |= CS_AC97_POWER_CONTROL_MIXVON;
+ cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
+ /*
+ * Now, we wait until we sample a ready state.
+ */
+ for (count = 0; count < 32; count++) {
+ /*
+ * First, lets wait a short while to let things settle out a
+ * bit, and to prevent retrying the read too quickly.
+ */
+ udelay(500);
+
+ /*
+ * Read the current state of the power control register.
+ */
+ if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_MIXVON_ON))
+ break;
+ }
+
+ /*
+ * Check the status..
+ */
+ if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_MIXVON_ON)
+ {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
+ "cs46xx: powerdown MIXVON failed\n"));
+ return 1;
+ }
+ }
+ }
+ if(type & CS_POWER_ADC)
+ {
+ /*
+ * Power down the ADC on the AC97 card.
+ */
+ CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO "cs46xx: cs461x_powerdown()+ ADC\n"));
+ tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
+ if (tmp & CS_AC97_POWER_CONTROL_ADC_ON)
+ {
+ if(!muted)
+ {
+ cs_mute(card, CS_TRUE);
+ muted=1;
+ }
+ tmp |= CS_AC97_POWER_CONTROL_ADC;
+ cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
+
+ /*
+ * Now, we wait until we sample a ready state.
+ */
+ for (count = 0; count < 32; count++) {
+ /*
+ * First, lets wait a short while to let things settle out a
+ * bit, and to prevent retrying the read too quickly.
+ */
+ udelay(500);
+
+ /*
+ * Read the current state of the power control register.
+ */
+ if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_ADC_ON))
+ break;
+ }
+
+ /*
+ * Check the status..
+ */
+ if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_ADC_ON)
+ {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
+ "cs46xx: powerdown ADC failed\n"));
+ return 1;
+ }
+ }
+ }
+ if(type & CS_POWER_DAC)
+ {
+ /*
+ * Power down the DAC on the AC97 card.
+ */
+
+ CS_DBGOUT(CS_FUNCTION, 4,
+ printk(KERN_INFO "cs46xx: cs461x_powerdown()+ DAC\n"));
+ tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
+ if (tmp & CS_AC97_POWER_CONTROL_DAC_ON)
+ {
+ if(!muted)
+ {
+ cs_mute(card, CS_TRUE);
+ muted=1;
+ }
+ tmp |= CS_AC97_POWER_CONTROL_DAC;
+ cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
+ /*
+ * Now, we wait until we sample a ready state.
+ */
+ for (count = 0; count < 32; count++) {
+ /*
+ * First, lets wait a short while to let things settle out a
+ * bit, and to prevent retrying the read too quickly.
+ */
+ udelay(500);
+
+ /*
+ * Read the current state of the power control register.
+ */
+ if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_DAC_ON))
+ break;
+ }
+
+ /*
+ * Check the status..
+ */
+ if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_DAC_ON)
+ {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
+ "cs46xx: powerdown DAC failed\n"));
+ return 1;
+ }
+ }
+ }
+ tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
+ if(muted)
+ cs_mute(card, CS_FALSE);
+ CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO
+ "cs46xx: cs461x_powerdown()- 0 tmp=0x%x\n",tmp));
+ return 0;
+}
+
+static int cs46xx_powerup(struct cs_card *card, unsigned int type)
+{
+ int count;
+ unsigned int tmp=0,muted=0;
+
+ CS_DBGOUT(CS_FUNCTION, 8, printk(KERN_INFO
+ "cs46xx: cs46xx_powerup()+ type=0x%x\n",type));
+ /*
+ * check for VREF and powerup if need to.
+ */
+ if(type & CS_POWER_MIXVON)
+ type |= CS_POWER_MIXVOFF;
+ if(type & (CS_POWER_DAC | CS_POWER_ADC))
+ type |= CS_POWER_MIXVON | CS_POWER_MIXVOFF;
+
+ /*
+ * Power up indicated areas.
+ */
+ if(type & CS_POWER_MIXVOFF)
+ {
+
+ CS_DBGOUT(CS_FUNCTION, 4,
+ printk(KERN_INFO "cs46xx: cs46xx_powerup()+ MIXVOFF\n"));
+ /*
+ * Power up the MIXER (VREF ON) on the AC97 card.
+ */
+ tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
+ if (!(tmp & CS_AC97_POWER_CONTROL_MIXVOFF_ON))
+ {
+ if(!muted)
+ {
+ cs_mute(card, CS_TRUE);
+ muted=1;
+ }
+ tmp &= ~CS_AC97_POWER_CONTROL_MIXVOFF;
+ cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
+ /*
+ * Now, we wait until we sample a ready state.
+ */
+ for (count = 0; count < 32; count++) {
+ /*
+ * First, lets wait a short while to let things settle out a
+ * bit, and to prevent retrying the read too quickly.
+ */
+ udelay(500);
+
+ /*
+ * Read the current state of the power control register.
+ */
+ if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_MIXVOFF_ON)
+ break;
+ }
+
+ /*
+ * Check the status..
+ */
+ if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_MIXVOFF_ON))
+ {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
+ "cs46xx: powerup MIXVOFF failed\n"));
+ return 1;
+ }
+ }
+ }
+ if(type & CS_POWER_MIXVON)
+ {
+
+ CS_DBGOUT(CS_FUNCTION, 4,
+ printk(KERN_INFO "cs46xx: cs46xx_powerup()+ MIXVON\n"));
+ /*
+ * Power up the MIXER (VREF ON) on the AC97 card.
+ */
+ tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
+ if (!(tmp & CS_AC97_POWER_CONTROL_MIXVON_ON))
+ {
+ if(!muted)
+ {
+ cs_mute(card, CS_TRUE);
+ muted=1;
+ }
+ tmp &= ~CS_AC97_POWER_CONTROL_MIXVON;
+ cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
+ /*
+ * Now, we wait until we sample a ready state.
+ */
+ for (count = 0; count < 32; count++) {
+ /*
+ * First, lets wait a short while to let things settle out a
+ * bit, and to prevent retrying the read too quickly.
+ */
+ udelay(500);
+
+ /*
+ * Read the current state of the power control register.
+ */
+ if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_MIXVON_ON)
+ break;
+ }
+
+ /*
+ * Check the status..
+ */
+ if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_MIXVON_ON))
+ {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
+ "cs46xx: powerup MIXVON failed\n"));
+ return 1;
+ }
+ }
+ }
+ if(type & CS_POWER_ADC)
+ {
+ /*
+ * Power up the ADC on the AC97 card.
+ */
+ CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO "cs46xx: cs46xx_powerup()+ ADC\n"));
+ tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
+ if (!(tmp & CS_AC97_POWER_CONTROL_ADC_ON))
+ {
+ if(!muted)
+ {
+ cs_mute(card, CS_TRUE);
+ muted=1;
+ }
+ tmp &= ~CS_AC97_POWER_CONTROL_ADC;
+ cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
+
+ /*
+ * Now, we wait until we sample a ready state.
+ */
+ for (count = 0; count < 32; count++) {
+ /*
+ * First, lets wait a short while to let things settle out a
+ * bit, and to prevent retrying the read too quickly.
+ */
+ udelay(500);
+
+ /*
+ * Read the current state of the power control register.
+ */
+ if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_ADC_ON)
+ break;
+ }
+
+ /*
+ * Check the status..
+ */
+ if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_ADC_ON))
+ {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
+ "cs46xx: powerup ADC failed\n"));
+ return 1;
+ }
+ }
+ }
+ if(type & CS_POWER_DAC)
+ {
+ /*
+ * Power up the DAC on the AC97 card.
+ */
+
+ CS_DBGOUT(CS_FUNCTION, 4,
+ printk(KERN_INFO "cs46xx: cs46xx_powerup()+ DAC\n"));
+ tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
+ if (!(tmp & CS_AC97_POWER_CONTROL_DAC_ON))
+ {
+ if(!muted)
+ {
+ cs_mute(card, CS_TRUE);
+ muted=1;
+ }
+ tmp &= ~CS_AC97_POWER_CONTROL_DAC;
+ cs_ac97_set(card->ac97_codec[0], AC97_POWER_CONTROL, tmp );
+ /*
+ * Now, we wait until we sample a ready state.
+ */
+ for (count = 0; count < 32; count++) {
+ /*
+ * First, lets wait a short while to let things settle out a
+ * bit, and to prevent retrying the read too quickly.
+ */
+ udelay(500);
+
+ /*
+ * Read the current state of the power control register.
+ */
+ if (cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_DAC_ON)
+ break;
+ }
+
+ /*
+ * Check the status..
+ */
+ if (!(cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL) &
+ CS_AC97_POWER_CONTROL_DAC_ON))
+ {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_WARNING
+ "cs46xx: powerup DAC failed\n"));
+ return 1;
+ }
+ }
+ }
+ tmp = cs_ac97_get(card->ac97_codec[0], AC97_POWER_CONTROL);
+ if(muted)
+ cs_mute(card, CS_FALSE);
+ CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO
+ "cs46xx: cs46xx_powerup()- 0 tmp=0x%x\n",tmp));
+ return 0;
+}
+
+
+static void cs461x_proc_start(struct cs_card *card)
+{
+ int cnt;
+
+ /*
+ * Set the frame timer to reflect the number of cycles per frame.
+ */
+ cs461x_poke(card, BA1_FRMT, 0xadf);
+ /*
+ * Turn on the run, run at frame, and DMA enable bits in the local copy of
+ * the SP control register.
+ */
+ cs461x_poke(card, BA1_SPCR, SPCR_RUN | SPCR_RUNFR | SPCR_DRQEN);
+ /*
+ * Wait until the run at frame bit resets itself in the SP control
+ * register.
+ */
+ for (cnt = 0; cnt < 25; cnt++) {
+ udelay(50);
+ if (!(cs461x_peek(card, BA1_SPCR) & SPCR_RUNFR))
+ break;
+ }
+
+ if (cs461x_peek(card, BA1_SPCR) & SPCR_RUNFR)
+ printk(KERN_WARNING "cs46xx: SPCR_RUNFR never reset\n");
+}
+
+static void cs461x_proc_stop(struct cs_card *card)
+{
+ /*
+ * Turn off the run, run at frame, and DMA enable bits in the local copy of
+ * the SP control register.
+ */
+ cs461x_poke(card, BA1_SPCR, 0);
+}
+
+static int cs_hardware_init(struct cs_card *card)
+{
+ unsigned long end_time;
+ unsigned int tmp,count;
+
+ CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
+ "cs46xx: cs_hardware_init()+\n") );
+ /*
+ * First, blast the clock control register to zero so that the PLL starts
+ * out in a known state, and blast the master serial port control register
+ * to zero so that the serial ports also start out in a known state.
+ */
+ cs461x_pokeBA0(card, BA0_CLKCR1, 0);
+ cs461x_pokeBA0(card, BA0_SERMC1, 0);
+
+ /*
+ * If we are in AC97 mode, then we must set the part to a host controlled
+ * AC-link. Otherwise, we won't be able to bring up the link.
+ */
+ cs461x_pokeBA0(card, BA0_SERACC, SERACC_HSP | SERACC_CODEC_TYPE_1_03); /* 1.03 card */
+ /* cs461x_pokeBA0(card, BA0_SERACC, SERACC_HSP | SERACC_CODEC_TYPE_2_0); */ /* 2.00 card */
+
+ /*
+ * Drive the ARST# pin low for a minimum of 1uS (as defined in the AC97
+ * spec) and then drive it high. This is done for non AC97 modes since
+ * there might be logic external to the CS461x that uses the ARST# line
+ * for a reset.
+ */
+ cs461x_pokeBA0(card, BA0_ACCTL, 1);
+ udelay(50);
+ cs461x_pokeBA0(card, BA0_ACCTL, 0);
+ udelay(50);
+ cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_RSTN);
+
+ /*
+ * The first thing we do here is to enable sync generation. As soon
+ * as we start receiving bit clock, we'll start producing the SYNC
+ * signal.
+ */
+ cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_ESYN | ACCTL_RSTN);
+
+ /*
+ * Now wait for a short while to allow the AC97 part to start
+ * generating bit clock (so we don't try to start the PLL without an
+ * input clock).
+ */
+ mdelay(5 * cs_laptop_wait); /* 1 should be enough ?? (and pigs might fly) */
+
+ /*
+ * Set the serial port timing configuration, so that
+ * the clock control circuit gets its clock from the correct place.
+ */
+ cs461x_pokeBA0(card, BA0_SERMC1, SERMC1_PTC_AC97);
+
+ /*
+ * The part seems to not be ready for a while after a resume.
+ * so, if we are resuming, then wait for 700 mils. Note that 600 mils
+ * is not enough for some platforms! tested on an IBM Thinkpads and
+ * reference cards.
+ */
+ if(!(card->pm.flags & CS46XX_PM_IDLE))
+ mdelay(initdelay);
+ /*
+ * Write the selected clock control setup to the hardware. Do not turn on
+ * SWCE yet (if requested), so that the devices clocked by the output of
+ * PLL are not clocked until the PLL is stable.
+ */
+ cs461x_pokeBA0(card, BA0_PLLCC, PLLCC_LPF_1050_2780_KHZ | PLLCC_CDR_73_104_MHZ);
+ cs461x_pokeBA0(card, BA0_PLLM, 0x3a);
+ cs461x_pokeBA0(card, BA0_CLKCR2, CLKCR2_PDIVS_8);
+
+ /*
+ * Power up the PLL.
+ */
+ cs461x_pokeBA0(card, BA0_CLKCR1, CLKCR1_PLLP);
+
+ /*
+ * Wait until the PLL has stabilized.
+ */
+ mdelay(5 * cs_laptop_wait); /* Again 1 should be enough ?? */
+
+ /*
+ * Turn on clocking of the core so that we can setup the serial ports.
+ */
+ tmp = cs461x_peekBA0(card, BA0_CLKCR1) | CLKCR1_SWCE;
+ cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
+
+ /*
+ * Fill the serial port FIFOs with silence.
+ */
+ cs461x_clear_serial_FIFOs(card,CS_TYPE_DAC | CS_TYPE_ADC);
+
+ /*
+ * Set the serial port FIFO pointer to the first sample in the FIFO.
+ */
+ /* cs461x_pokeBA0(card, BA0_SERBSP, 0); */
+
+ /*
+ * Write the serial port configuration to the part. The master
+ * enable bit is not set until all other values have been written.
+ */
+ cs461x_pokeBA0(card, BA0_SERC1, SERC1_SO1F_AC97 | SERC1_SO1EN);
+ cs461x_pokeBA0(card, BA0_SERC2, SERC2_SI1F_AC97 | SERC1_SO1EN);
+ cs461x_pokeBA0(card, BA0_SERMC1, SERMC1_PTC_AC97 | SERMC1_MSPE);
+
+
+ mdelay(5 * cs_laptop_wait); /* Shouldnt be needed ?? */
+
+/*
+* If we are resuming under 2.2.x then we can not schedule a timeout.
+* so, just spin the CPU.
+*/
+ if(card->pm.flags & CS46XX_PM_IDLE)
+ {
+ /*
+ * Wait for the card ready signal from the AC97 card.
+ */
+ end_time = jiffies + 3 * (HZ >> 2);
+ do {
+ /*
+ * Read the AC97 status register to see if we've seen a CODEC READY
+ * signal from the AC97 card.
+ */
+ if (cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_CRDY)
+ break;
+ current->state = TASK_UNINTERRUPTIBLE;
+ schedule_timeout(1);
+ } while (time_before(jiffies, end_time));
+ }
+ else
+ {
+ for (count = 0; count < 100; count++) {
+ // First, we want to wait for a short time.
+ udelay(25 * cs_laptop_wait);
+
+ if (cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_CRDY)
+ break;
+ }
+ }
+
+ /*
+ * Make sure CODEC is READY.
+ */
+ if (!(cs461x_peekBA0(card, BA0_ACSTS) & ACSTS_CRDY)) {
+ CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_WARNING
+ "cs46xx: create - never read card ready from AC'97\n"));
+ CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_WARNING
+ "cs46xx: probably not a bug, try using the CS4232 driver,\n"));
+ CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_WARNING
+ "cs46xx: or turn off any automatic Power Management support in the BIOS.\n"));
+ return -EIO;
+ }
+
+ /*
+ * Assert the vaid frame signal so that we can start sending commands
+ * to the AC97 card.
+ */
+ cs461x_pokeBA0(card, BA0_ACCTL, ACCTL_VFRM | ACCTL_ESYN | ACCTL_RSTN);
+
+ if(card->pm.flags & CS46XX_PM_IDLE)
+ {
+ /*
+ * Wait until we've sampled input slots 3 and 4 as valid, meaning that
+ * the card is pumping ADC data across the AC-link.
+ */
+ end_time = jiffies + 3 * (HZ >> 2);
+ do {
+ /*
+ * Read the input slot valid register and see if input slots 3 and
+ * 4 are valid yet.
+ */
+ if ((cs461x_peekBA0(card, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
+ break;
+ current->state = TASK_UNINTERRUPTIBLE;
+ schedule_timeout(1);
+ } while (time_before(jiffies, end_time));
+ }
+ else
+ {
+ for (count = 0; count < 100; count++) {
+ // First, we want to wait for a short time.
+ udelay(25 * cs_laptop_wait);
+
+ if ((cs461x_peekBA0(card, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) == (ACISV_ISV3 | ACISV_ISV4))
+ break;
+ }
+ }
+ /*
+ * Make sure input slots 3 and 4 are valid. If not, then return
+ * an error.
+ */
+ if ((cs461x_peekBA0(card, BA0_ACISV) & (ACISV_ISV3 | ACISV_ISV4)) != (ACISV_ISV3 | ACISV_ISV4)) {
+ printk(KERN_WARNING "cs46xx: create - never read ISV3 & ISV4 from AC'97\n");
+ return -EIO;
+ }
+
+ /*
+ * Now, assert valid frame and the slot 3 and 4 valid bits. This will
+ * commense the transfer of digital audio data to the AC97 card.
+ */
+ cs461x_pokeBA0(card, BA0_ACOSV, ACOSV_SLV3 | ACOSV_SLV4);
+
+ /*
+ * Turn off the Processor by turning off the software clock enable flag in
+ * the clock control register.
+ */
+ /* tmp = cs461x_peekBA0(card, BA0_CLKCR1) & ~CLKCR1_SWCE; */
+ /* cs461x_pokeBA0(card, BA0_CLKCR1, tmp); */
+
+ /*
+ * Reset the processor.
+ */
+ cs461x_reset(card);
+
+ /*
+ * Download the image to the processor.
+ */
+
+ cs461x_download_image(card);
+
+ /*
+ * Stop playback DMA.
+ */
+ tmp = cs461x_peek(card, BA1_PCTL);
+ card->pctl = tmp & 0xffff0000;
+ cs461x_poke(card, BA1_PCTL, tmp & 0x0000ffff);
+
+ /*
+ * Stop capture DMA.
+ */
+ tmp = cs461x_peek(card, BA1_CCTL);
+ card->cctl = tmp & 0x0000ffff;
+ cs461x_poke(card, BA1_CCTL, tmp & 0xffff0000);
+
+ /* initialize AC97 codec and register /dev/mixer */
+ if(card->pm.flags & CS46XX_PM_IDLE)
+ {
+ if (cs_ac97_init(card) <= 0)
+ {
+ CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
+ "cs46xx: cs_ac97_init() failure\n") );
+ return -EIO;
+ }
+ }
+ else
+ {
+ cs46xx_ac97_resume(card);
+ }
+
+ cs461x_proc_start(card);
+
+ /*
+ * Enable interrupts on the part.
+ */
+ cs461x_pokeBA0(card, BA0_HICR, HICR_IEV | HICR_CHGM);
+
+ tmp = cs461x_peek(card, BA1_PFIE);
+ tmp &= ~0x0000f03f;
+ cs461x_poke(card, BA1_PFIE, tmp); /* playback interrupt enable */
+
+ tmp = cs461x_peek(card, BA1_CIE);
+ tmp &= ~0x0000003f;
+ tmp |= 0x00000001;
+ cs461x_poke(card, BA1_CIE, tmp); /* capture interrupt enable */
+
+ /*
+ * If IDLE then Power down the part. We will power components up
+ * when we need them.
+ */
+ if(card->pm.flags & CS46XX_PM_IDLE)
+ {
+ if(!cs_powerdown)
+ {
+ if( (tmp = cs46xx_powerup(card, CS_POWER_DAC | CS_POWER_ADC |
+ CS_POWER_MIXVON )) )
+ {
+ CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
+ "cs46xx: cs461x_powerup() failure (0x%x)\n",tmp) );
+ return -EIO;
+ }
+ }
+ else
+ {
+ if( (tmp = cs461x_powerdown(card, CS_POWER_DAC | CS_POWER_ADC |
+ CS_POWER_MIXVON, CS_FALSE )) )
+ {
+ CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
+ "cs46xx: cs461x_powerdown() failure (0x%x)\n",tmp) );
+ return -EIO;
+ }
+ }
+ }
+ CS_DBGOUT(CS_FUNCTION | CS_INIT, 2, printk(KERN_INFO
+ "cs46xx: cs_hardware_init()- 0\n"));
+ return 0;
+}
+
+/* install the driver, we do not allocate hardware channel nor DMA buffer now, they are defered
+ until "ACCESS" time (in prog_dmabuf called by open/read/write/ioctl/mmap) */
+
+/*
+ * Card subid table
+ */
+
+struct cs_card_type
+{
+ u16 vendor;
+ u16 id;
+ char *name;
+ void (*amp)(struct cs_card *, int);
+ void (*amp_init)(struct cs_card *);
+ void (*active)(struct cs_card *, int);
+};
+
+static struct cs_card_type cards[] = {
+ {
+ .vendor = 0x1489,
+ .id = 0x7001,
+ .name = "Genius Soundmaker 128 value",
+ .amp = amp_none,
+ },
+ {
+ .vendor = 0x5053,
+ .id = 0x3357,
+ .name = "Voyetra",
+ .amp = amp_voyetra,
+ },
+ {
+ .vendor = 0x1071,
+ .id = 0x6003,
+ .name = "Mitac MI6020/21",
+ .amp = amp_voyetra,
+ },
+ {
+ .vendor = 0x14AF,
+ .id = 0x0050,
+ .name = "Hercules Game Theatre XP",
+ .amp = amp_hercules,
+ },
+ {
+ .vendor = 0x1681,
+ .id = 0x0050,
+ .name = "Hercules Game Theatre XP",
+ .amp = amp_hercules,
+ },
+ {
+ .vendor = 0x1681,
+ .id = 0x0051,
+ .name = "Hercules Game Theatre XP",
+ .amp = amp_hercules,
+ },
+ {
+ .vendor = 0x1681,
+ .id = 0x0052,
+ .name = "Hercules Game Theatre XP",
+ .amp = amp_hercules,
+ },
+ {
+ .vendor = 0x1681,
+ .id = 0x0053,
+ .name = "Hercules Game Theatre XP",
+ .amp = amp_hercules,
+ },
+ {
+ .vendor = 0x1681,
+ .id = 0x0054,
+ .name = "Hercules Game Theatre XP",
+ .amp = amp_hercules,
+ },
+ {
+ .vendor = 0x1681,
+ .id = 0xa010,
+ .name = "Hercules Fortissimo II",
+ .amp = amp_none,
+ },
+ /* Not sure if the 570 needs the clkrun hack */
+ {
+ .vendor = PCI_VENDOR_ID_IBM,
+ .id = 0x0132,
+ .name = "Thinkpad 570",
+ .amp = amp_none,
+ .active = clkrun_hack,
+ },
+ {
+ .vendor = PCI_VENDOR_ID_IBM,
+ .id = 0x0153,
+ .name = "Thinkpad 600X/A20/T20",
+ .amp = amp_none,
+ .active = clkrun_hack,
+ },
+ {
+ .vendor = PCI_VENDOR_ID_IBM,
+ .id = 0x1010,
+ .name = "Thinkpad 600E (unsupported)",
+ },
+ {
+ .name = "Card without SSID set",
+ },
+ { 0, },
+};
+
+MODULE_AUTHOR("Alan Cox <alan@redhat.com>, Jaroslav Kysela, <pcaudio@crystal.cirrus.com>");
+MODULE_DESCRIPTION("Crystal SoundFusion Audio Support");
+MODULE_LICENSE("GPL");
+
+
+static const char cs46xx_banner[] = KERN_INFO "Crystal 4280/46xx + AC97 Audio, version " CS46XX_MAJOR_VERSION "." CS46XX_MINOR_VERSION "." CS46XX_ARCH ", " __TIME__ " " __DATE__ "\n";
+static const char fndmsg[] = KERN_INFO "cs46xx: Found %d audio device(s).\n";
+
+static int __devinit cs46xx_probe(struct pci_dev *pci_dev,
+ const struct pci_device_id *pciid)
+{
+ struct pm_dev *pmdev;
+ int i,j;
+ u16 ss_card, ss_vendor;
+ struct cs_card *card;
+ dma_addr_t dma_mask;
+ struct cs_card_type *cp = &cards[0];
+
+ CS_DBGOUT(CS_FUNCTION | CS_INIT, 2,
+ printk(KERN_INFO "cs46xx: probe()+\n"));
+
+ dma_mask = 0xffffffff; /* this enables playback and recording */
+ if (pci_enable_device(pci_dev)) {
+ CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR
+ "cs46xx: pci_enable_device() failed\n"));
+ return -1;
+ }
+ if (!RSRCISMEMORYREGION(pci_dev, 0) ||
+ !RSRCISMEMORYREGION(pci_dev, 1)) {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
+ "cs46xx: probe()- Memory region not assigned\n"));
+ return -1;
+ }
+ if (pci_dev->irq == 0) {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
+ "cs46xx: probe() IRQ not assigned\n"));
+ return -1;
+ }
+ if (!pci_dma_supported(pci_dev, 0xffffffff)) {
+ CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
+ "cs46xx: probe() architecture does not support 32bit PCI busmaster DMA\n"));
+ return -1;
+ }
+ pci_read_config_word(pci_dev, PCI_SUBSYSTEM_VENDOR_ID, &ss_vendor);
+ pci_read_config_word(pci_dev, PCI_SUBSYSTEM_ID, &ss_card);
+
+ if ((card = kmalloc(sizeof(struct cs_card), GFP_KERNEL)) == NULL) {
+ printk(KERN_ERR "cs46xx: out of memory\n");
+ return -ENOMEM;
+ }
+ memset(card, 0, sizeof(*card));
+ card->ba0_addr = RSRCADDRESS(pci_dev, 0);
+ card->ba1_addr = RSRCADDRESS(pci_dev, 1);
+ card->pci_dev = pci_dev;
+ card->irq = pci_dev->irq;
+ card->magic = CS_CARD_MAGIC;
+ spin_lock_init(&card->lock);
+ spin_lock_init(&card->ac97_lock);
+
+ pci_set_master(pci_dev);
+
+ printk(cs46xx_banner);
+ printk(KERN_INFO "cs46xx: Card found at 0x%08lx and 0x%08lx, IRQ %d\n",
+ card->ba0_addr, card->ba1_addr, card->irq);
+
+ card->alloc_pcm_channel = cs_alloc_pcm_channel;
+ card->alloc_rec_pcm_channel = cs_alloc_rec_pcm_channel;
+ card->free_pcm_channel = cs_free_pcm_channel;
+ card->amplifier_ctrl = amp_none;
+ card->active_ctrl = amp_none;
+
+ while (cp->name)
+ {
+ if(cp->vendor == ss_vendor && cp->id == ss_card)
+ {
+ card->amplifier_ctrl = cp->amp;
+ if(cp->active)
+ card->active_ctrl = cp->active;
+ if(cp->amp_init)
+ card->amp_init = cp->amp_init;
+ break;
+ }
+ cp++;
+ }
+ if (cp->name==NULL)
+ {
+ printk(KERN_INFO "cs46xx: Unknown card (%04X:%04X) at 0x%08lx/0x%08lx, IRQ %d\n",
+ ss_vendor, ss_card, card->ba0_addr, card->ba1_addr, card->irq);
+ }
+ else
+ {
+ printk(KERN_INFO "cs46xx: %s (%04X:%04X) at 0x%08lx/0x%08lx, IRQ %d\n",
+ cp->name, ss_vendor, ss_card, card->ba0_addr, card->ba1_addr, card->irq);
+ }
+
+ if (card->amplifier_ctrl==NULL)
+ {
+ card->amplifier_ctrl = amp_none;
+ card->active_ctrl = clkrun_hack;
+ }
+
+ if (external_amp == 1)
+ {
+ printk(KERN_INFO "cs46xx: Crystal EAPD support forced on.\n");
+ card->amplifier_ctrl = amp_voyetra;
+ }
+
+ if (thinkpad == 1)
+ {
+ printk(KERN_INFO "cs46xx: Activating CLKRUN hack for Thinkpad.\n");
+ card->active_ctrl = clkrun_hack;
+ }
+/*
+* The thinkpads don't work well without runtime updating on their kernel
+* delay values (or any laptop with variable CPU speeds really).
+* so, just to be safe set the init delay to 2100. Eliminates
+* failures on T21 Thinkpads. remove this code when the udelay
+* and mdelay kernel code is replaced by a pm timer, or the delays
+* work well for battery and/or AC power both.
+*/
+ if(card->active_ctrl == clkrun_hack)
+ {
+ initdelay = 2100;
+ cs_laptop_wait = 5;
+ }
+ if((card->active_ctrl == clkrun_hack) && !(powerdown == 1))
+ {
+/*
+* for some currently unknown reason, powering down the DAC and ADC component
+* blocks on thinkpads causes some funky behavior... distoorrrtion and ac97
+* codec access problems. probably the serial clock becomes unsynced.
+* added code to sync the chips back up, but only helped about 70% the time.
+*/
+ cs_powerdown = 0;
+ }
+ if(powerdown == 0)
+ cs_powerdown = 0;
+ card->active_ctrl(card, 1);
+
+ /* claim our iospace and irq */
+
+ card->ba0 = ioremap_nocache(card->ba0_addr, CS461X_BA0_SIZE);
+ card->ba1.name.data0 = ioremap_nocache(card->ba1_addr + BA1_SP_DMEM0, CS461X_BA1_DATA0_SIZE);
+ card->ba1.name.data1 = ioremap_nocache(card->ba1_addr + BA1_SP_DMEM1, CS461X_BA1_DATA1_SIZE);
+ card->ba1.name.pmem = ioremap_nocache(card->ba1_addr + BA1_SP_PMEM, CS461X_BA1_PRG_SIZE);
+ card->ba1.name.reg = ioremap_nocache(card->ba1_addr + BA1_SP_REG, CS461X_BA1_REG_SIZE);
+
+ CS_DBGOUT(CS_INIT, 4, printk(KERN_INFO
+ "cs46xx: card=%p card->ba0=%p\n",card,card->ba0) );
+ CS_DBGOUT(CS_INIT, 4, printk(KERN_INFO
+ "cs46xx: card->ba1=%p %p %p %p\n",
+ card->ba1.name.data0,
+ card->ba1.name.data1,
+ card->ba1.name.pmem,
+ card->ba1.name.reg) );
+
+ if(card->ba0 == 0 || card->ba1.name.data0 == 0 ||
+ card->ba1.name.data1 == 0 || card->ba1.name.pmem == 0 ||
+ card->ba1.name.reg == 0)
+ goto fail2;
+
+ if (request_irq(card->irq, &cs_interrupt, SA_SHIRQ, "cs46xx", card)) {
+ printk(KERN_ERR "cs46xx: unable to allocate irq %d\n", card->irq);
+ goto fail2;
+ }
+ /* register /dev/dsp */
+ if ((card->dev_audio = register_sound_dsp(&cs461x_fops, -1)) < 0) {
+ printk(KERN_ERR "cs46xx: unable to register dsp\n");
+ goto fail;
+ }
+
+ /* register /dev/midi */
+ if((card->dev_midi = register_sound_midi(&cs_midi_fops, -1)) < 0)
+ printk(KERN_ERR "cs46xx: unable to register midi\n");
+
+ card->pm.flags |= CS46XX_PM_IDLE;
+ for(i=0;i<5;i++)
+ {
+ if (cs_hardware_init(card) != 0)
+ {
+ CS_DBGOUT(CS_ERROR, 4, printk(
+ "cs46xx: ERROR in cs_hardware_init()... retrying\n"));
+ for (j = 0; j < NR_AC97; j++)
+ if (card->ac97_codec[j] != NULL) {
+ unregister_sound_mixer(card->ac97_codec[j]->dev_mixer);
+ ac97_release_codec(card->ac97_codec[j]);
+ }
+ mdelay(10 * cs_laptop_wait);
+ continue;
+ }
+ break;
+ }
+ if(i>=4)
+ {
+ CS_DBGOUT(CS_PM | CS_ERROR, 1, printk(
+ "cs46xx: cs46xx_probe()- cs_hardware_init() failed, retried %d times.\n",i));
+ unregister_sound_dsp(card->dev_audio);
+ if(card->dev_midi)
+ unregister_sound_midi(card->dev_midi);
+ goto fail;
+ }
+
+ init_waitqueue_head(&card->midi.open_wait);
+ init_MUTEX(&card->midi.open_sem);
+ init_waitqueue_head(&card->midi.iwait);
+ init_waitqueue_head(&card->midi.owait);
+ cs461x_pokeBA0(card, BA0_MIDCR, MIDCR_MRST);
+ cs461x_pokeBA0(card, BA0_MIDCR, 0);
+
+ /*
+ * Check if we have to init the amplifier, but probably already done
+ * since the CD logic in the ac97 init code will turn on the ext amp.
+ */
+ if(cp->amp_init)
+ cp->amp_init(card);
+ card->active_ctrl(card, -1);
+
+ PCI_SET_DRIVER_DATA(pci_dev, card);
+ PCI_SET_DMA_MASK(pci_dev, dma_mask);
+ list_add(&card->list, &cs46xx_devs);
+
+ pmdev = cs_pm_register(PM_PCI_DEV, PM_PCI_ID(pci_dev), cs46xx_pm_callback);
+ if (pmdev)
+ {
+ CS_DBGOUT(CS_INIT | CS_PM, 4, printk(KERN_INFO
+ "cs46xx: probe() pm_register() succeeded (%p).\n",
+ pmdev));
+ pmdev->data = card;
+ }
+ else
+ {
+ CS_DBGOUT(CS_INIT | CS_PM | CS_ERROR, 2, printk(KERN_INFO
+ "cs46xx: probe() pm_register() failed (%p).\n",
+ pmdev));
+ card->pm.flags |= CS46XX_PM_NOT_REGISTERED;
+ }
+
+ CS_DBGOUT(CS_PM, 9, printk(KERN_INFO "cs46xx: pm.flags=0x%x card=%p\n",
+ (unsigned)card->pm.flags,card));
+
+ CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
+ "cs46xx: probe()- device allocated successfully\n"));
+ return 0;
+
+fail:
+ free_irq(card->irq, card);
+fail2:
+ if(card->ba0)
+ iounmap(card->ba0);
+ if(card->ba1.name.data0)
+ iounmap(card->ba1.name.data0);
+ if(card->ba1.name.data1)
+ iounmap(card->ba1.name.data1);
+ if(card->ba1.name.pmem)
+ iounmap(card->ba1.name.pmem);
+ if(card->ba1.name.reg)
+ iounmap(card->ba1.name.reg);
+ kfree(card);
+ CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_INFO
+ "cs46xx: probe()- no device allocated\n"));
+ return -ENODEV;
+} // probe_cs46xx
+
+// ---------------------------------------------------------------------
+
+static void __devexit cs46xx_remove(struct pci_dev *pci_dev)
+{
+ struct cs_card *card = PCI_GET_DRIVER_DATA(pci_dev);
+ int i;
+ unsigned int tmp;
+
+ CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
+ "cs46xx: cs46xx_remove()+\n"));
+
+ card->active_ctrl(card,1);
+
+ tmp = cs461x_peek(card, BA1_PFIE);
+ tmp &= ~0x0000f03f;
+ tmp |= 0x00000010;
+ cs461x_poke(card, BA1_PFIE, tmp); /* playback interrupt disable */
+
+ tmp = cs461x_peek(card, BA1_CIE);
+ tmp &= ~0x0000003f;
+ tmp |= 0x00000011;
+ cs461x_poke(card, BA1_CIE, tmp); /* capture interrupt disable */
+
+ /*
+ * Stop playback DMA.
+ */
+ tmp = cs461x_peek(card, BA1_PCTL);
+ cs461x_poke(card, BA1_PCTL, tmp & 0x0000ffff);
+
+ /*
+ * Stop capture DMA.
+ */
+ tmp = cs461x_peek(card, BA1_CCTL);
+ cs461x_poke(card, BA1_CCTL, tmp & 0xffff0000);
+
+ /*
+ * Reset the processor.
+ */
+ cs461x_reset(card);
+
+ cs461x_proc_stop(card);
+
+ /*
+ * Power down the DAC and ADC. We will power them up (if) when we need
+ * them.
+ */
+ if( (tmp = cs461x_powerdown(card, CS_POWER_DAC | CS_POWER_ADC |
+ CS_POWER_MIXVON, CS_TRUE )) )
+ {
+ CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(KERN_INFO
+ "cs46xx: cs461x_powerdown() failure (0x%x)\n",tmp) );
+ }
+
+ /*
+ * Power down the PLL.
+ */
+ cs461x_pokeBA0(card, BA0_CLKCR1, 0);
+
+ /*
+ * Turn off the Processor by turning off the software clock enable flag in
+ * the clock control register.
+ */
+ tmp = cs461x_peekBA0(card, BA0_CLKCR1) & ~CLKCR1_SWCE;
+ cs461x_pokeBA0(card, BA0_CLKCR1, tmp);
+
+ card->active_ctrl(card,-1);
+
+ /* free hardware resources */
+ free_irq(card->irq, card);
+ iounmap(card->ba0);
+ iounmap(card->ba1.name.data0);
+ iounmap(card->ba1.name.data1);
+ iounmap(card->ba1.name.pmem);
+ iounmap(card->ba1.name.reg);
+
+ /* unregister audio devices */
+ for (i = 0; i < NR_AC97; i++)
+ if (card->ac97_codec[i] != NULL) {
+ unregister_sound_mixer(card->ac97_codec[i]->dev_mixer);
+ ac97_release_codec(card->ac97_codec[i]);
+ }
+ unregister_sound_dsp(card->dev_audio);
+ if(card->dev_midi)
+ unregister_sound_midi(card->dev_midi);
+ list_del(&card->list);
+ kfree(card);
+ PCI_SET_DRIVER_DATA(pci_dev,NULL);
+
+ CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
+ "cs46xx: cs46xx_remove()-: remove successful\n"));
+}
+
+enum {
+ CS46XX_4610 = 0,
+ CS46XX_4612, /* same as 4630 */
+ CS46XX_4615, /* same as 4624 */
+};
+
+static struct pci_device_id cs46xx_pci_tbl[] = {
+ {
+ .vendor = PCI_VENDOR_ID_CIRRUS,
+ .device = PCI_DEVICE_ID_CIRRUS_4610,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = CS46XX_4610,
+ },
+ {
+ .vendor = PCI_VENDOR_ID_CIRRUS,
+ .device = PCI_DEVICE_ID_CIRRUS_4612,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = CS46XX_4612,
+ },
+ {
+ .vendor = PCI_VENDOR_ID_CIRRUS,
+ .device = PCI_DEVICE_ID_CIRRUS_4615,
+ .subvendor = PCI_ANY_ID,
+ .subdevice = PCI_ANY_ID,
+ .driver_data = CS46XX_4615,
+ },
+ { 0, },
+};
+
+MODULE_DEVICE_TABLE(pci, cs46xx_pci_tbl);
+
+static struct pci_driver cs46xx_pci_driver = {
+ .name = "cs46xx",
+ .id_table = cs46xx_pci_tbl,
+ .probe = cs46xx_probe,
+ .remove = __devexit_p(cs46xx_remove),
+ .suspend = CS46XX_SUSPEND_TBL,
+ .resume = CS46XX_RESUME_TBL,
+};
+
+static int __init cs46xx_init_module(void)
+{
+ int rtn = 0;
+ CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
+ "cs46xx: cs46xx_init_module()+ \n"));
+ rtn = pci_module_init(&cs46xx_pci_driver);
+
+ if(rtn == -ENODEV)
+ {
+ CS_DBGOUT(CS_ERROR | CS_INIT, 1, printk(
+ "cs46xx: Unable to detect valid cs46xx device\n"));
+ }
+
+ CS_DBGOUT(CS_INIT | CS_FUNCTION, 2,
+ printk(KERN_INFO "cs46xx: cs46xx_init_module()- (%d)\n",rtn));
+ return rtn;
+}
+
+static void __exit cs46xx_cleanup_module(void)
+{
+ pci_unregister_driver(&cs46xx_pci_driver);
+ cs_pm_unregister_all(cs46xx_pm_callback);
+ CS_DBGOUT(CS_INIT | CS_FUNCTION, 2,
+ printk(KERN_INFO "cs46xx: cleanup_cs46xx() finished\n"));
+}
+
+module_init(cs46xx_init_module);
+module_exit(cs46xx_cleanup_module);
+
+#ifndef CS46XX_ACPI_SUPPORT
+static int cs46xx_pm_callback(struct pm_dev *dev, pm_request_t rqst, void *data)
+{
+ struct cs_card *card;
+
+ CS_DBGOUT(CS_PM, 2, printk(KERN_INFO
+ "cs46xx: cs46xx_pm_callback dev=%p rqst=0x%x card=%p\n",
+ dev,(unsigned)rqst,data));
+ card = (struct cs_card *) dev->data;
+ if (card) {
+ switch(rqst) {
+ case PM_SUSPEND:
+ CS_DBGOUT(CS_PM, 2, printk(KERN_INFO
+ "cs46xx: PM suspend request\n"));
+ if(cs46xx_suspend(card, 0))
+ {
+ CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO
+ "cs46xx: PM suspend request refused\n"));
+ return 1;
+ }
+ break;
+ case PM_RESUME:
+ CS_DBGOUT(CS_PM, 2, printk(KERN_INFO
+ "cs46xx: PM resume request\n"));
+ if(cs46xx_resume(card))
+ {
+ CS_DBGOUT(CS_ERROR, 2, printk(KERN_INFO
+ "cs46xx: PM resume request refused\n"));
+ return 1;
+ }
+ break;
+ }
+ }
+
+ return 0;
+}
+#endif
+
+#if CS46XX_ACPI_SUPPORT
+static int cs46xx_suspend_tbl(struct pci_dev *pcidev, pm_message_t state)
+{
+ struct cs_card *s = PCI_GET_DRIVER_DATA(pcidev);
+ CS_DBGOUT(CS_PM | CS_FUNCTION, 2,
+ printk(KERN_INFO "cs46xx: cs46xx_suspend_tbl request\n"));
+ cs46xx_suspend(s, 0);
+ return 0;
+}
+
+static int cs46xx_resume_tbl(struct pci_dev *pcidev)
+{
+ struct cs_card *s = PCI_GET_DRIVER_DATA(pcidev);
+ CS_DBGOUT(CS_PM | CS_FUNCTION, 2,
+ printk(KERN_INFO "cs46xx: cs46xx_resume_tbl request\n"));
+ cs46xx_resume(s);
+ return 0;
+}
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 06:28:23 +0000