forte.c
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上传日期:2013-04-10
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- /*
- * forte.c - ForteMedia FM801 OSS Driver
- *
- * Written by Martin K. Petersen <mkp@mkp.net>
- * Copyright (C) 2002 Hewlett-Packard Company
- *
- * Based upon the ALSA FM801 driver by Jaroslav Kysela and OSS drivers
- * by Thomas Sailer, Alan Cox, Zach Brown, and Jeff Garzik. Thanks
- * guys!
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
- *
- */
-
- /*
- * TODO:
- * MMIO
- * Multichannelize
- * Multichipify
- * MPU401
- * M^Gameport
- */
- #include <linux/config.h>
- #include <linux/module.h>
- #include <linux/kernel.h>
- #include <linux/init.h>
- #include <linux/spinlock.h>
- #include <linux/pci.h>
- #include <linux/delay.h>
- #include <linux/poll.h>
- #include <linux/kernel.h>
- #include <linux/sound.h>
- #include <linux/ac97_codec.h>
- #include <linux/wrapper.h>
- #include <linux/proc_fs.h>
- #include <asm/uaccess.h>
- #include <asm/hardirq.h>
- #define DRIVER_NAME "forte"
- #define DRIVER_VERSION "$Id: forte.c,v 1.55 2002/10/02 00:01:42 mkp Exp $"
- #define PFX DRIVER_NAME ": "
- #undef M_DEBUG
- #ifdef M_DEBUG
- #define DPRINTK(args...) printk(KERN_WARNING args)
- #else
- #define DPRINTK(args...)
- #endif
- /* Card capabilities */
- #define FORTE_CAPS (DSP_CAP_MMAP | DSP_CAP_TRIGGER)
- /* Supported audio formats */
- #define FORTE_FMTS (AFMT_U8 | AFMT_S16_LE)
- /* Buffers */
- #define FORTE_MIN_FRAG_SIZE 256
- #define FORTE_MAX_FRAG_SIZE PAGE_SIZE
- #define FORTE_DEF_FRAG_SIZE 256
- #define FORTE_MIN_FRAGMENTS 16
- #define FORTE_MAX_FRAGMENTS 256
- #define FORTE_DEF_FRAGMENTS 16
- #define FORTE_MIN_BUF 16386
- /* PCI BARs */
- #define FORTE_PCM_VOL 0x00 /* PCM Output Volume */
- #define FORTE_FM_VOL 0x02 /* FM Output Volume */
- #define FORTE_I2S_VOL 0x04 /* I2S Volume */
- #define FORTE_REC_SRC 0x06 /* Record Source */
- #define FORTE_PLY_CTRL 0x08 /* Playback Control */
- #define FORTE_PLY_COUNT 0x0a /* Playback Count */
- #define FORTE_PLY_BUF1 0x0c /* Playback Buffer I */
- #define FORTE_PLY_BUF2 0x10 /* Playback Buffer II */
- #define FORTE_CAP_CTRL 0x14 /* Capture Control */
- #define FORTE_CAP_COUNT 0x16 /* Capture Count */
- #define FORTE_CAP_BUF1 0x18 /* Capture Buffer I */
- #define FORTE_CAP_BUF2 0x1c /* Capture Buffer II */
- #define FORTE_CODEC_CTRL 0x22 /* Codec Control */
- #define FORTE_I2S_MODE 0x24 /* I2S Mode Control */
- #define FORTE_VOLUME 0x26 /* Volume Up/Down/Mute Status */
- #define FORTE_I2C_CTRL 0x29 /* I2C Control */
- #define FORTE_AC97_CMD 0x2a /* AC'97 Command */
- #define FORTE_AC97_DATA 0x2c /* AC'97 Data */
- #define FORTE_MPU401_DATA 0x30 /* MPU401 Data */
- #define FORTE_MPU401_CMD 0x31 /* MPU401 Command */
- #define FORTE_GPIO_CTRL 0x52 /* General Purpose I/O Control */
- #define FORTE_GEN_CTRL 0x54 /* General Control */
- #define FORTE_IRQ_MASK 0x56 /* Interrupt Mask */
- #define FORTE_IRQ_STATUS 0x5a /* Interrupt Status */
- #define FORTE_OPL3_BANK0 0x68 /* OPL3 Status Read / Bank 0 Write */
- #define FORTE_OPL3_DATA0 0x69 /* OPL3 Data 0 Write */
- #define FORTE_OPL3_BANK1 0x6a /* OPL3 Bank 1 Write */
- #define FORTE_OPL3_DATA1 0x6b /* OPL3 Bank 1 Write */
- #define FORTE_POWERDOWN 0x70 /* Blocks Power Down Control */
- #define FORTE_CAP_OFFSET FORTE_CAP_CTRL - FORTE_PLY_CTRL
- #define FORTE_AC97_ADDR_SHIFT 10
- /* Playback and record control register bits */
- #define FORTE_BUF1_LAST (1<<1)
- #define FORTE_BUF2_LAST (1<<2)
- #define FORTE_START (1<<5)
- #define FORTE_PAUSE (1<<6)
- #define FORTE_IMMED_STOP (1<<7)
- #define FORTE_RATE_SHIFT 8
- #define FORTE_RATE_MASK (15 << FORTE_RATE_SHIFT)
- #define FORTE_CHANNELS_4 (1<<12) /* Playback only */
- #define FORTE_CHANNELS_6 (2<<12) /* Playback only */
- #define FORTE_CHANNELS_6MS (3<<12) /* Playback only */
- #define FORTE_CHANNELS_MASK (3<<12)
- #define FORTE_16BIT (1<<14)
- #define FORTE_STEREO (1<<15)
- /* IRQ status bits */
- #define FORTE_IRQ_PLAYBACK (1<<8)
- #define FORTE_IRQ_CAPTURE (1<<9)
- #define FORTE_IRQ_VOLUME (1<<14)
- #define FORTE_IRQ_MPU (1<<15)
- /* CODEC control */
- #define FORTE_CC_CODEC_RESET (1<<5)
- #define FORTE_CC_AC97_RESET (1<<6)
- /* AC97 cmd */
- #define FORTE_AC97_WRITE (0<<7)
- #define FORTE_AC97_READ (1<<7)
- #define FORTE_AC97_DP_INVALID (0<<8)
- #define FORTE_AC97_DP_VALID (1<<8)
- #define FORTE_AC97_PORT_RDY (0<<9)
- #define FORTE_AC97_PORT_BSY (1<<9)
- struct forte_channel {
- const char *name;
- unsigned short ctrl; /* Ctrl BAR contents */
- unsigned long iobase; /* Ctrl BAR address */
- wait_queue_head_t wait;
- void *buf; /* Buffer */
- dma_addr_t buf_handle; /* Buffer handle */
- unsigned int record;
- unsigned int format;
- unsigned int rate;
- unsigned int stereo;
- unsigned int frag_sz; /* Current fragment size */
- unsigned int frag_num; /* Current # of fragments */
- unsigned int buf_sz; /* Current buffer size */
- unsigned int hwptr; /* Tail */
- unsigned int swptr; /* Head */
- unsigned int filled_frags; /* Fragments currently full */
- unsigned int next_buf; /* Index of next buffer */
- unsigned int blocked; /* Blocked on I/O */
- unsigned int drain; /* Drain queued buffers */
- unsigned int active; /* Channel currently in use */
- unsigned int mapped; /* mmap */
- unsigned int buf_pages; /* Real size of buffer */
- unsigned int nr_irqs; /* Number of interrupts */
- unsigned int bytes; /* Total bytes */
- };
- struct forte_chip {
- struct pci_dev *pci_dev;
- unsigned long iobase;
- int irq;
- struct semaphore open_sem; /* Device access */
- spinlock_t lock; /* State */
- spinlock_t ac97_lock;
- struct ac97_codec *ac97;
- int multichannel;
- int dsp; /* OSS handle */
- int trigger; /* mmap I/O trigger */
- struct forte_channel play;
- struct forte_channel rec;
- };
- static int channels[] = { 2, 4, 6, };
- static int rates[] = { 5500, 8000, 9600, 11025, 16000, 19200,
- 22050, 32000, 38400, 44100, 48000, };
- static struct forte_chip *forte;
- static int found;
- /* AC97 Codec -------------------------------------------------------------- */
- /**
- * forte_ac97_wait:
- * @chip: fm801 instance whose AC97 codec to wait on
- *
- * FIXME:
- * Stop busy-waiting
- */
- static inline int
- forte_ac97_wait (struct forte_chip *chip)
- {
- int i = 10000;
- while ( (inw (chip->iobase + FORTE_AC97_CMD) & FORTE_AC97_PORT_BSY)
- && i-- )
- cpu_relax();
- return i == 0;
- }
- /**
- * forte_ac97_read:
- * @codec: AC97 codec to read from
- * @reg: register to read
- */
- u16
- forte_ac97_read (struct ac97_codec *codec, u8 reg)
- {
- u16 ret = 0;
- struct forte_chip *chip = codec->private_data;
- spin_lock (&chip->ac97_lock);
- /* Knock, knock */
- if (forte_ac97_wait (chip)) {
- printk (KERN_ERR PFX "ac97_read: Serial bus busyn");
- goto out;
- }
- /* Send read command */
- outw (reg | (1<<7), chip->iobase + FORTE_AC97_CMD);
- if (forte_ac97_wait (chip)) {
- printk (KERN_ERR PFX "ac97_read: Bus busy reading reg 0x%xn",
- reg);
- goto out;
- }
-
- /* Sanity checking */
- if (inw (chip->iobase + FORTE_AC97_CMD) & FORTE_AC97_DP_INVALID) {
- printk (KERN_ERR PFX "ac97_read: Invalid data port");
- goto out;
- }
- /* Fetch result */
- ret = inw (chip->iobase + FORTE_AC97_DATA);
- out:
- spin_unlock (&chip->ac97_lock);
- return ret;
- }
- /**
- * forte_ac97_write:
- * @codec: AC97 codec to send command to
- * @reg: register to write
- * @val: value to write
- */
- void
- forte_ac97_write (struct ac97_codec *codec, u8 reg, u16 val)
- {
- struct forte_chip *chip = codec->private_data;
- spin_lock (&chip->ac97_lock);
- /* Knock, knock */
- if (forte_ac97_wait (chip)) {
- printk (KERN_ERR PFX "ac97_write: Serial bus busyn");
- goto out;
- }
- outw (val, chip->iobase + FORTE_AC97_DATA);
- outb (reg | FORTE_AC97_WRITE, chip->iobase + FORTE_AC97_CMD);
- /* Wait for completion */
- if (forte_ac97_wait (chip)) {
- printk (KERN_ERR PFX "ac97_write: Bus busy after writen");
- goto out;
- }
- out:
- spin_unlock (&chip->ac97_lock);
- }
- /* Mixer ------------------------------------------------------------------- */
- /**
- * forte_mixer_open:
- * @inode:
- * @file:
- */
- static int
- forte_mixer_open (struct inode *inode, struct file *file)
- {
- struct forte_chip *chip = forte;
- MOD_INC_USE_COUNT;
- file->private_data = chip->ac97;
- return 0;
- }
- /**
- * forte_mixer_release:
- * @inode:
- * @file:
- */
- static int
- forte_mixer_release (struct inode *inode, struct file *file)
- {
- /* We will welease Wodewick */
- MOD_DEC_USE_COUNT;
- return 0;
- }
- /**
- * forte_mixer_ioctl:
- * @inode:
- * @file:
- */
- static int
- forte_mixer_ioctl (struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
- {
- struct ac97_codec *codec = (struct ac97_codec *) file->private_data;
- return codec->mixer_ioctl (codec, cmd, arg);
- }
- static struct file_operations forte_mixer_fops = {
- owner: THIS_MODULE,
- llseek: no_llseek,
- ioctl: forte_mixer_ioctl,
- open: forte_mixer_open,
- release: forte_mixer_release,
- };
- /* Channel ----------------------------------------------------------------- */
- /**
- * forte_channel_reset:
- * @channel: Channel to reset
- *
- * Locking: Must be called with lock held.
- */
- static void
- forte_channel_reset (struct forte_channel *channel)
- {
- if (!channel || !channel->iobase)
- return;
- DPRINTK ("%s: channel = %sn", __FUNCTION__, channel->name);
- channel->ctrl &= ~FORTE_START;
- outw (channel->ctrl, channel->iobase + FORTE_PLY_CTRL);
-
- /* We always play at least two fragments, hence these defaults */
- channel->hwptr = channel->frag_sz;
- channel->next_buf = 1;
- channel->swptr = 0;
- channel->filled_frags = 0;
- channel->blocked = 0;
- channel->drain = 0;
- channel->active = 0;
- channel->bytes = 0;
- channel->nr_irqs = 0;
- channel->mapped = 0;
- }
- /**
- * forte_channel_start:
- * @channel: Channel to start (record/playback)
- *
- * Locking: Must be called with lock held.
- */
- static void inline
- forte_channel_start (struct forte_channel *channel)
- {
- if (!channel || !channel->iobase)
- return;
- DPRINTK ("%s: channel = %sn", __FUNCTION__, channel->name);
- channel->ctrl &= ~(FORTE_PAUSE | FORTE_BUF1_LAST | FORTE_BUF2_LAST);
- channel->ctrl |= FORTE_START;
- channel->active = 1;
- outw (channel->ctrl, channel->iobase + FORTE_PLY_CTRL);
- }
- /**
- * forte_channel_stop:
- * @channel: Channel to stop
- *
- * Locking: Must be called with lock held.
- */
- static void inline
- forte_channel_stop (struct forte_channel *channel)
- {
- if (!channel || !channel->iobase)
- return;
- DPRINTK ("%s: channel = %sn", __FUNCTION__, channel->name);
- channel->ctrl &= ~FORTE_START;
- channel->active = 0;
- outw (channel->ctrl, channel->iobase + FORTE_PLY_CTRL);
- }
- /**
- * forte_channel_rate:
- * @channel: Channel whose rate to set. Playback and record are
- * independent.
- * @rate: Channel rate in Hz
- *
- * Locking: Must be called with lock held.
- */
- static int
- forte_channel_rate (struct forte_channel *channel, unsigned int rate)
- {
- int new_rate;
- if (!channel || !channel->iobase)
- return -EINVAL;
- /* The FM801 only supports a handful of fixed frequencies.
- * We find the value closest to what userland requested.
- */
- if (rate <= 6250) { rate = 5500; new_rate = 0; }
- else if (rate <= 8800) { rate = 8000; new_rate = 1; }
- else if (rate <= 10312) { rate = 9600; new_rate = 2; }
- else if (rate <= 13512) { rate = 11025; new_rate = 3; }
- else if (rate <= 17600) { rate = 16000; new_rate = 4; }
- else if (rate <= 20625) { rate = 19200; new_rate = 5; }
- else if (rate <= 27025) { rate = 22050; new_rate = 6; }
- else if (rate <= 35200) { rate = 32000; new_rate = 7; }
- else if (rate <= 41250) { rate = 38400; new_rate = 8; }
- else if (rate <= 46050) { rate = 44100; new_rate = 9; }
- else { rate = 48000; new_rate = 10; }
- channel->ctrl &= ~FORTE_RATE_MASK;
- channel->ctrl |= new_rate << FORTE_RATE_SHIFT;
- channel->rate = rate;
- DPRINTK ("%s: %s rate = %dn", __FUNCTION__, channel->name, rate);
- return rate;
- }
- /**
- * forte_channel_format:
- * @channel: Channel whose audio format to set
- * @format: OSS format ID
- *
- * Locking: Must be called with lock held.
- */
- static int
- forte_channel_format (struct forte_channel *channel, int format)
- {
- if (!channel || !channel->iobase)
- return -EINVAL;
- switch (format) {
- case AFMT_QUERY:
- break;
-
- case AFMT_U8:
- channel->ctrl &= ~FORTE_16BIT;
- channel->format = AFMT_U8;
- break;
- case AFMT_S16_LE:
- default:
- channel->ctrl |= FORTE_16BIT;
- channel->format = AFMT_S16_LE;
- break;
- }
- DPRINTK ("%s: %s want %d format, got %dn", __FUNCTION__, channel->name,
- format, channel->format);
- return channel->format;
- }
- /**
- * forte_channel_stereo:
- * @channel: Channel to toggle
- * @stereo: 0 for Mono, 1 for Stereo
- *
- * Locking: Must be called with lock held.
- */
- static int
- forte_channel_stereo (struct forte_channel *channel, unsigned int stereo)
- {
- int ret;
- if (!channel || !channel->iobase)
- return -EINVAL;
- DPRINTK ("%s: %s stereo = %dn", __FUNCTION__, channel->name, stereo);
- switch (stereo) {
- case 0:
- channel->ctrl &= ~(FORTE_STEREO | FORTE_CHANNELS_MASK);
- channel-> stereo = stereo;
- ret = stereo;
- break;
- case 1:
- channel->ctrl &= ~FORTE_CHANNELS_MASK;
- channel->ctrl |= FORTE_STEREO;
- channel-> stereo = stereo;
- ret = stereo;
- break;
- default:
- DPRINTK ("Unsupported channel format");
- ret = -EINVAL;
- break;
- }
- return ret;
- }
- /**
- * forte_channel_buffer:
- * @channel: Channel whose buffer to set up
- *
- * Locking: Must be called with lock held.
- *
- * FIXME: Buffer scaling dependent on rate/channels/bits
- */
- static void
- forte_channel_buffer (struct forte_channel *channel, int sz, int num)
- {
- /* Go away, I'm busy */
- if (channel->filled_frags || channel->bytes)
- return;
- channel->frag_sz = sz;
- channel->frag_num = num;
- if (channel->frag_sz < FORTE_MIN_FRAG_SIZE)
- channel->frag_sz = FORTE_MIN_FRAG_SIZE;
- if (channel->frag_sz > FORTE_MAX_FRAG_SIZE)
- channel->frag_sz = FORTE_MAX_FRAG_SIZE;
- if (channel->frag_num < FORTE_MIN_FRAGMENTS)
- channel->frag_num = FORTE_MIN_FRAGMENTS;
- if (channel->frag_num > FORTE_MAX_FRAGMENTS)
- channel->frag_num = FORTE_MAX_FRAGMENTS;
- if (channel->frag_sz * channel->frag_num < FORTE_MIN_BUF)
- channel->frag_num = FORTE_MIN_BUF / channel->frag_sz;
- channel->buf_sz = channel->frag_sz * channel->frag_num;
- DPRINTK ("%s: %s frag_sz = %d, frag_num = %d, buf_sz = %dn",
- __FUNCTION__, channel->name, channel->frag_sz,
- channel->frag_num, channel->buf_sz);
- }
- /**
- * forte_channel_prep:
- * @channel: Channel whose buffer to prepare
- *
- * Locking: Lock held.
- */
- static void
- forte_channel_prep (struct forte_channel *channel)
- {
- struct page *page;
- int i;
-
- if (channel->buf)
- return;
- channel->buf_pages = channel->buf_sz >> PAGE_SHIFT;
- if (channel->buf_sz % PAGE_SIZE)
- channel->buf_pages++;
- DPRINTK ("%s: %s frag_sz = %d, frag_num = %d, buf_sz = %d, pg = %dn",
- __FUNCTION__, channel->name, channel->frag_sz,
- channel->frag_num, channel->buf_sz, channel->buf_pages);
- /* DMA buffer */
- channel->buf = pci_alloc_consistent (forte->pci_dev,
- channel->buf_pages * PAGE_SIZE,
- &channel->buf_handle);
- if (!channel->buf || !channel->buf_handle)
- BUG();
- page = virt_to_page (channel->buf);
-
- for (i = 0 ; i < channel->buf_pages ; i++)
- mem_map_reserve (page++);
- /* Prep buffer registers */
- outw (channel->frag_sz - 1, channel->iobase + FORTE_PLY_COUNT);
- outl (channel->buf_handle, channel->iobase + FORTE_PLY_BUF1);
- outl (channel->buf_handle + channel->frag_sz,
- channel->iobase + FORTE_PLY_BUF2);
- /* Reset hwptr */
- channel->hwptr = channel->frag_sz;
- channel->next_buf = 1;
- DPRINTK ("%s: %s buffer @ %p (%p)n", __FUNCTION__, channel->name,
- channel->buf, channel->buf_handle);
- }
- /**
- * forte_channel_drain:
- * @chip:
- * @channel:
- *
- * Locking: Don't hold the lock.
- */
- static inline int
- forte_channel_drain (struct forte_channel *channel)
- {
- DECLARE_WAITQUEUE (wait, current);
- unsigned long flags;
- if (!channel->active)
- return 0;
- if (channel->mapped) {
- spin_lock_irqsave (&forte->lock, flags);
- forte_channel_stop (channel);
- spin_unlock_irqrestore (&forte->lock, flags);
- return 0;
- }
- channel->drain = 1;
- add_wait_queue (&channel->wait, &wait);
- for (;;) {
- spin_lock_irqsave (&forte->lock, flags);
- if (channel->active == 0 || channel->filled_frags < 1)
- break;
- spin_unlock_irqrestore (&forte->lock, flags);
- __set_current_state (TASK_INTERRUPTIBLE);
- schedule();
- }
- channel->drain = 0;
- spin_unlock_irqrestore (&forte->lock, flags);
- set_current_state (TASK_RUNNING);
- remove_wait_queue (&channel->wait, &wait);
- return 0;
- }
- /**
- * forte_channel_init:
- * @chip: Forte chip instance the channel hangs off
- * @channel: Channel to initialize
- *
- * Description:
- * Initializes a channel, sets defaults, and allocates
- * buffers.
- *
- * Locking: No lock held.
- */
- static int
- forte_channel_init (struct forte_chip *chip, struct forte_channel *channel)
- {
- DPRINTK ("%s: chip iobase @ %pn", __FUNCTION__, (void *)chip->iobase);
- spin_lock_irq (&chip->lock);
- memset (channel, 0x0, sizeof (*channel));
- if (channel == &chip->play) {
- channel->name = "PCM_OUT";
- channel->iobase = chip->iobase;
- DPRINTK ("%s: PCM-OUT iobase @ %pn", __FUNCTION__,
- (void *) channel->iobase);
- }
- else if (channel == &chip->rec) {
- channel->name = "PCM_IN";
- channel->iobase = chip->iobase + FORTE_CAP_OFFSET;
- channel->record = 1;
- DPRINTK ("%s: PCM-IN iobase @ %pn", __FUNCTION__,
- (void *) channel->iobase);
- }
- else
- BUG();
- init_waitqueue_head (&channel->wait);
- /* Defaults: 48kHz, 16-bit, stereo */
- channel->ctrl = inw (channel->iobase + FORTE_PLY_CTRL);
- forte_channel_reset (channel);
- forte_channel_stereo (channel, 1);
- forte_channel_format (channel, AFMT_S16_LE);
- forte_channel_rate (channel, 48000);
- forte_channel_buffer (channel, FORTE_DEF_FRAG_SIZE,
- FORTE_DEF_FRAGMENTS);
- chip->trigger = 0;
- spin_unlock_irq (&chip->lock);
- return 0;
- }
- /**
- * forte_channel_free:
- * @chip: Chip this channel hangs off
- * @channel: Channel to nuke
- *
- * Description:
- * Resets channel and frees buffers.
- *
- * Locking: Hold your horses.
- */
- static void
- forte_channel_free (struct forte_chip *chip, struct forte_channel *channel)
- {
- DPRINTK ("%s: %sn", __FUNCTION__, channel->name);
- if (!channel->buf_handle)
- return;
- pci_free_consistent (chip->pci_dev, channel->buf_pages * PAGE_SIZE,
- channel->buf, channel->buf_handle);
-
- memset (channel, 0x0, sizeof (*channel));
- }
- /* DSP --------------------------------------------------------------------- */
- /**
- * forte_dsp_ioctl:
- */
- static int
- forte_dsp_ioctl (struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg)
- {
- int ival=0, ret, rval=0, rd, wr, count;
- struct forte_chip *chip;
- struct audio_buf_info abi;
- struct count_info cinfo;
- chip = file->private_data;
-
- if (file->f_mode & FMODE_WRITE)
- wr = 1;
- else
- wr = 0;
- if (file->f_mode & FMODE_READ)
- rd = 1;
- else
- rd = 0;
- switch (cmd) {
- case OSS_GETVERSION:
- return put_user (SOUND_VERSION, (int *) arg);
- case SNDCTL_DSP_GETCAPS:
- DPRINTK ("%s: GETCAPSn", __FUNCTION__);
- ival = FORTE_CAPS; /* DUPLEX */
- return put_user (ival, (int *) arg);
- case SNDCTL_DSP_GETFMTS:
- DPRINTK ("%s: GETFMTSn", __FUNCTION__);
- ival = FORTE_FMTS; /* U8, 16LE */
- return put_user (ival, (int *) arg);
- case SNDCTL_DSP_SETFMT: /* U8, 16LE */
- DPRINTK ("%s: SETFMTn", __FUNCTION__);
- if (get_user (ival, (int *) arg))
- return -EFAULT;
- spin_lock_irq (&chip->lock);
- if (rd) {
- forte_channel_stop (&chip->rec);
- rval = forte_channel_format (&chip->rec, ival);
- }
- if (wr) {
- forte_channel_stop (&chip->rec);
- rval = forte_channel_format (&chip->play, ival);
- }
- spin_unlock_irq (&chip->lock);
-
- return put_user (rval, (int *) arg);
- case SNDCTL_DSP_STEREO: /* 0 - mono, 1 - stereo */
- DPRINTK ("%s: STEREOn", __FUNCTION__);
- if (get_user (ival, (int *) arg))
- return -EFAULT;
- spin_lock_irq (&chip->lock);
- if (rd) {
- forte_channel_stop (&chip->rec);
- rval = forte_channel_stereo (&chip->rec, ival);
- }
- if (wr) {
- forte_channel_stop (&chip->rec);
- rval = forte_channel_stereo (&chip->play, ival);
- }
- spin_unlock_irq (&chip->lock);
- return put_user (rval, (int *) arg);
- case SNDCTL_DSP_CHANNELS: /* 1 - mono, 2 - stereo */
- DPRINTK ("%s: CHANNELSn", __FUNCTION__);
- if (get_user (ival, (int *) arg))
- return -EFAULT;
- spin_lock_irq (&chip->lock);
- if (rd) {
- forte_channel_stop (&chip->rec);
- rval = forte_channel_stereo (&chip->rec, ival-1) + 1;
- }
- if (wr) {
- forte_channel_stop (&chip->play);
- rval = forte_channel_stereo (&chip->play, ival-1) + 1;
- }
- spin_unlock_irq (&chip->lock);
- return put_user (rval, (int *) arg);
- case SNDCTL_DSP_SPEED:
- DPRINTK ("%s: SPEEDn", __FUNCTION__);
- if (get_user (ival, (int *) arg))
- return -EFAULT;
- spin_lock_irq (&chip->lock);
- if (rd) {
- forte_channel_stop (&chip->rec);
- rval = forte_channel_rate (&chip->rec, ival);
- }
- if (wr) {
- forte_channel_stop (&chip->play);
- rval = forte_channel_rate (&chip->play, ival);
- }
- spin_unlock_irq (&chip->lock);
- return put_user(rval, (int*) arg);
- case SNDCTL_DSP_GETBLKSIZE:
- DPRINTK ("%s: GETBLKSIZEn", __FUNCTION__);
- spin_lock_irq (&chip->lock);
- if (rd)
- ival = chip->rec.frag_sz;
- if (wr)
- ival = chip->play.frag_sz;
- spin_unlock_irq (&chip->lock);
- return put_user (ival, (int *) arg);
- case SNDCTL_DSP_RESET:
- DPRINTK ("%s: RESETn", __FUNCTION__);
- spin_lock_irq (&chip->lock);
- if (rd)
- forte_channel_reset (&chip->rec);
- if (wr)
- forte_channel_reset (&chip->play);
- spin_unlock_irq (&chip->lock);
- return 0;
- case SNDCTL_DSP_SYNC:
- DPRINTK ("%s: SYNCn", __FUNCTION__);
- if (wr) {
- ret = forte_channel_drain (&chip->play);
- spin_lock_irq (&chip->lock);
- forte_channel_reset (&chip->play);
- spin_unlock_irq (&chip->lock);
- }
- return 0;
- case SNDCTL_DSP_POST:
- DPRINTK ("%s: POSTn", __FUNCTION__);
- if (wr) {
- spin_lock_irq (&chip->lock);
- forte_channel_reset (&chip->play);
- spin_unlock_irq (&chip->lock);
- }
- return 0;
- case SNDCTL_DSP_SETFRAGMENT:
- DPRINTK ("%s: SETFRAGMENTn", __FUNCTION__);
- if (get_user (ival, (int *) arg))
- return -EFAULT;
- spin_lock_irq (&chip->lock);
- if (rd) {
- forte_channel_buffer (&chip->rec, ival & 0xffff,
- (ival >> 16) & 0xffff);
- ival = (chip->rec.frag_num << 16) + chip->rec.frag_sz;
- }
- if (wr) {
- forte_channel_buffer (&chip->play, ival & 0xffff,
- (ival >> 16) & 0xffff);
- ival = (chip->play.frag_num << 16) +chip->play.frag_sz;
- }
- spin_unlock_irq (&chip->lock);
- return put_user (ival, (int *) arg);
-
- case SNDCTL_DSP_GETISPACE:
- DPRINTK ("%s: GETISPACEn", __FUNCTION__);
- if (!rd)
- return -EINVAL;
- spin_lock_irq (&chip->lock);
- abi.fragstotal = chip->rec.frag_num;
- abi.fragsize = chip->rec.frag_sz;
-
- if (chip->rec.mapped) {
- abi.fragments = chip->rec.frag_num - 2;
- abi.bytes = abi.fragments * abi.fragsize;
- }
- else {
- abi.fragments = chip->rec.filled_frags;
- abi.bytes = abi.fragments * abi.fragsize;
- }
- spin_unlock_irq (&chip->lock);
- return copy_to_user ((void *) arg, &abi, sizeof (abi));
- case SNDCTL_DSP_GETIPTR:
- DPRINTK ("%s: GETIPTRn", __FUNCTION__);
- if (!rd)
- return -EINVAL;
- spin_lock_irq (&chip->lock);
- if (chip->rec.active)
- cinfo.ptr = chip->rec.hwptr;
- else
- cinfo.ptr = 0;
- cinfo.bytes = chip->rec.bytes;
- cinfo.blocks = chip->rec.nr_irqs;
- chip->rec.nr_irqs = 0;
- spin_unlock_irq (&chip->lock);
- return copy_to_user ((void *) arg, &cinfo, sizeof (cinfo));
- case SNDCTL_DSP_GETOSPACE:
- if (!wr)
- return -EINVAL;
- spin_lock_irq (&chip->lock);
- abi.fragstotal = chip->play.frag_num;
- abi.fragsize = chip->play.frag_sz;
- if (chip->play.mapped) {
- abi.fragments = chip->play.frag_num - 2;
- abi.bytes = chip->play.buf_sz;
- }
- else {
- abi.fragments = chip->play.frag_num -
- chip->play.filled_frags;
- abi.bytes = abi.fragments * abi.fragsize;
- }
- spin_unlock_irq (&chip->lock);
-
- return copy_to_user ((void *) arg, &abi, sizeof (abi));
- case SNDCTL_DSP_GETOPTR:
- if (!wr)
- return -EINVAL;
- spin_lock_irq (&chip->lock);
- if (chip->play.active)
- cinfo.ptr = chip->play.hwptr;
- else
- cinfo.ptr = 0;
- cinfo.bytes = chip->play.bytes;
- cinfo.blocks = chip->play.nr_irqs;
- chip->play.nr_irqs = 0;
- spin_unlock_irq (&chip->lock);
- return copy_to_user ((void *) arg, &cinfo, sizeof (cinfo));
- case SNDCTL_DSP_GETODELAY:
- if (!chip->play.active)
- return 0;
- if (!wr)
- return -EINVAL;
- spin_lock_irq (&chip->lock);
- if (chip->play.mapped) {
- count = inw (chip->play.iobase + FORTE_PLY_COUNT) + 1;
- ival = chip->play.frag_sz - count;
- }
- else {
- ival = chip->play.filled_frags * chip->play.frag_sz;
- }
- spin_unlock_irq (&chip->lock);
- return put_user (ival, (int *) arg);
- case SNDCTL_DSP_SETDUPLEX:
- DPRINTK ("%s: SETDUPLEXn", __FUNCTION__);
- return -EINVAL;
- case SNDCTL_DSP_GETTRIGGER:
- DPRINTK ("%s: GETTRIGGERn", __FUNCTION__);
-
- return put_user (chip->trigger, (int *) arg);
-
- case SNDCTL_DSP_SETTRIGGER:
- if (get_user (ival, (int *) arg))
- return -EFAULT;
- DPRINTK ("%s: SETTRIGGER %dn", __FUNCTION__, ival);
- if (wr) {
- spin_lock_irq (&chip->lock);
- if (ival & PCM_ENABLE_OUTPUT)
- forte_channel_start (&chip->play);
- else {
- chip->trigger = 1;
- forte_channel_prep (&chip->play);
- forte_channel_stop (&chip->play);
- }
- spin_unlock_irq (&chip->lock);
- }
- else if (rd) {
- spin_lock_irq (&chip->lock);
- if (ival & PCM_ENABLE_INPUT)
- forte_channel_start (&chip->rec);
- else {
- chip->trigger = 1;
- forte_channel_prep (&chip->rec);
- forte_channel_stop (&chip->rec);
- }
- spin_unlock_irq (&chip->lock);
- }
- return 0;
-
- case SOUND_PCM_READ_RATE:
- DPRINTK ("%s: PCM_READ_RATEn", __FUNCTION__);
- return put_user (chip->play.rate, (int *) arg);
- case SOUND_PCM_READ_CHANNELS:
- DPRINTK ("%s: PCM_READ_CHANNELSn", __FUNCTION__);
- return put_user (chip->play.stereo, (int *) arg);
- case SOUND_PCM_READ_BITS:
- DPRINTK ("%s: PCM_READ_BITSn", __FUNCTION__);
- return put_user (chip->play.format, (int *) arg);
- default:
- DPRINTK ("Unsupported ioctl: %x (%p)n", cmd, (void *) arg);
- break;
- }
- return -EINVAL;
- }
- /**
- * forte_dsp_open:
- */
- static int
- forte_dsp_open (struct inode *inode, struct file *file)
- {
- struct forte_chip *chip = forte; /* FIXME: HACK FROM HELL! */
- if (down_interruptible (&chip->open_sem)) {
- DPRINTK ("%s: returning -ERESTARTSYSn", __FUNCTION__);
- return -ERESTARTSYS;
- }
- file->private_data = forte;
- DPRINTK ("%s: chip @ %pn", __FUNCTION__, file->private_data);
- if (file->f_mode & FMODE_WRITE)
- forte_channel_init (forte, &forte->play);
- if (file->f_mode & FMODE_READ)
- forte_channel_init (forte, &forte->rec);
- return 0;
- }
- /**
- * forte_dsp_release:
- */
- static int
- forte_dsp_release (struct inode *inode, struct file *file)
- {
- struct forte_chip *chip = file->private_data;
- int ret = 0;
- DPRINTK ("%s: chip @ %pn", __FUNCTION__, chip);
- if (file->f_mode & FMODE_WRITE) {
- forte_channel_drain (&chip->play);
- spin_lock_irq (&chip->lock);
- chip->play.ctrl |= FORTE_IMMED_STOP;
- forte_channel_stop (&chip->play);
- forte_channel_free (chip, &chip->play);
- spin_unlock_irq (&chip->lock);
- }
- if (file->f_mode & FMODE_READ) {
- while (chip->rec.filled_frags > 0)
- interruptible_sleep_on (&chip->rec.wait);
- spin_lock_irq (&chip->lock);
- chip->play.ctrl |= FORTE_IMMED_STOP;
- forte_channel_stop (&chip->rec);
- forte_channel_free (chip, &chip->rec);
- spin_unlock_irq (&chip->lock);
- }
- up (&chip->open_sem);
- return ret;
- }
- /**
- * forte_dsp_poll:
- *
- * FIXME: Racy
- */
- static unsigned int
- forte_dsp_poll (struct file *file, struct poll_table_struct *wait)
- {
- struct forte_chip *chip;
- struct forte_channel *channel;
- unsigned int mask = 0;
- chip = file->private_data;
- if (file->f_mode & FMODE_WRITE) {
- channel = &chip->play;
- if (channel->active)
- poll_wait (file, &channel->wait, wait);
- if (channel->filled_frags)
- mask |= POLLOUT | POLLWRNORM;
- }
- if (file->f_mode & FMODE_READ) {
- channel = &chip->rec;
- if (channel->active)
- poll_wait (file, &channel->wait, wait);
- if (channel->filled_frags > 0)
- mask |= POLLIN | POLLRDNORM;
- }
- return mask;
- }
- /**
- * forte_dsp_mmap:
- */
- static int
- forte_dsp_mmap (struct file *file, struct vm_area_struct *vma)
- {
- struct forte_chip *chip;
- struct forte_channel *channel;
- unsigned long size;
- int ret;
- chip = file->private_data;
- DPRINTK ("%s: start %lXh, size %ld, pgoff %ldn", __FUNCTION__,
- vma->vm_start, vma->vm_end - vma->vm_start, vma->vm_pgoff);
- spin_lock_irq (&chip->lock);
- if (vma->vm_flags & VM_WRITE && chip->play.active) {
- ret = -EBUSY;
- goto out;
- }
- if (vma->vm_flags & VM_READ && chip->rec.active) {
- ret = -EBUSY;
- goto out;
- }
- if (file->f_mode & FMODE_WRITE)
- channel = &chip->play;
- else if (file->f_mode & FMODE_READ)
- channel = &chip->rec;
- else {
- ret = -EINVAL;
- goto out;
- }
- forte_channel_prep (channel);
- channel->mapped = 1;
- if (vma->vm_pgoff != 0) {
- ret = -EINVAL;
- goto out;
- }
- size = vma->vm_end - vma->vm_start;
- if (size > channel->buf_pages * PAGE_SIZE) {
- DPRINTK ("%s: size (%ld) > buf_sz (%d) n", __FUNCTION__,
- size, channel->buf_sz);
- ret = -EINVAL;
- goto out;
- }
- if (remap_page_range (vma->vm_start, virt_to_phys (channel->buf),
- size, vma->vm_page_prot)) {
- DPRINTK ("%s: remap el a no workon", __FUNCTION__);
- ret = -EAGAIN;
- goto out;
- }
- ret = 0;
- out:
- spin_unlock_irq (&chip->lock);
- return ret;
- }
- /**
- * forte_dsp_write:
- */
- static ssize_t
- forte_dsp_write (struct file *file, const char *buffer, size_t bytes,
- loff_t *ppos)
- {
- struct forte_chip *chip;
- struct forte_channel *channel;
- unsigned int i = bytes, sz = 0;
- unsigned long flags;
- if (ppos != &file->f_pos)
- return -ESPIPE;
- if (!access_ok (VERIFY_READ, buffer, bytes))
- return -EFAULT;
- chip = (struct forte_chip *) file->private_data;
- if (!chip)
- BUG();
- channel = &chip->play;
- if (!channel)
- BUG();
- spin_lock_irqsave (&chip->lock, flags);
- /* Set up buffers with the right fragment size */
- forte_channel_prep (channel);
- while (i) {
- /* All fragment buffers in use -> wait */
- if (channel->frag_num - channel->filled_frags == 0) {
- DECLARE_WAITQUEUE (wait, current);
- /* For trigger mode operation, get out */
- if (chip->trigger) {
- spin_unlock_irqrestore (&chip->lock, flags);
- return -EAGAIN;
- }
- /* Otherwise wait for buffers */
- channel->blocked = 1;
- add_wait_queue (&channel->wait, &wait);
- for (;;) {
- if (channel->active == 0)
- break;
- if (channel->frag_num - channel->filled_frags)
- break;
- spin_unlock_irqrestore (&chip->lock, flags);
- set_current_state (TASK_INTERRUPTIBLE);
- schedule();
- spin_lock_irqsave (&chip->lock, flags);
- }
- set_current_state (TASK_RUNNING);
- remove_wait_queue (&channel->wait, &wait);
- channel->blocked = 0;
- }
- if (i > channel->frag_sz)
- sz = channel->frag_sz;
- else
- sz = i;
- spin_unlock_irqrestore (&chip->lock, flags);
- /* Clear the fragment so we don't get noise when copying
- * smaller buffers
- */
- memset ((void *) channel->buf + channel->swptr, 0x0, sz);
- if (copy_from_user ((void *) channel->buf + channel->swptr,
- buffer, sz)) {
- return -EFAULT;
- }
- spin_lock_irqsave (&chip->lock, flags);
- /* Advance software pointer */
- buffer += sz;
- channel->filled_frags++;
- channel->swptr += channel->frag_sz;
- channel->swptr %= channel->buf_sz;
- i -= sz;
- /* If playback isn't active, start it */
- if (channel->active == 0 && chip->trigger == 0)
- forte_channel_start (channel);
- }
- spin_unlock_irqrestore (&chip->lock, flags);
- return bytes - i;
- }
- /**
- * forte_dsp_read:
- */
- static ssize_t
- forte_dsp_read (struct file *file, char *buffer, size_t bytes,
- loff_t *ppos)
- {
- struct forte_chip *chip;
- struct forte_channel *channel;
- unsigned int i = bytes, sz;
- unsigned long flags;
- if (ppos != &file->f_pos)
- return -ESPIPE;
- if (!access_ok (VERIFY_WRITE, buffer, bytes))
- return -EFAULT;
- chip = (struct forte_chip *) file->private_data;
- if (!chip)
- BUG();
- channel = &chip->rec;
- if (!channel)
- BUG();
- spin_lock_irqsave (&chip->lock, flags);
- /* Set up buffers with the right fragment size */
- forte_channel_prep (channel);
- /* Start recording */
- if (!chip->trigger)
- forte_channel_start (channel);
- while (i) {
- /* No fragment buffers in use -> wait */
- if (channel->filled_frags == 0) {
- DECLARE_WAITQUEUE (wait, current);
- /* For trigger mode operation, get out */
- if (chip->trigger) {
- spin_unlock_irqrestore (&chip->lock, flags);
- return -EAGAIN;
- }
- channel->blocked = 1;
- add_wait_queue (&channel->wait, &wait);
- for (;;) {
- if (channel->active == 0)
- break;
- if (channel->filled_frags)
- break;
-
- spin_unlock_irqrestore (&chip->lock, flags);
- set_current_state (TASK_INTERRUPTIBLE);
- schedule();
- spin_lock_irqsave (&chip->lock, flags);
- }
- set_current_state (TASK_RUNNING);
- remove_wait_queue (&channel->wait, &wait);
- channel->blocked = 0;
- }
- if (i > channel->frag_sz)
- sz = channel->frag_sz;
- else
- sz = i;
- spin_unlock_irqrestore (&chip->lock, flags);
- if (copy_to_user (buffer, (void *)channel->buf+channel->swptr, sz)) {
- DPRINTK ("%s: copy_to_user failedn", __FUNCTION__);
- return -EFAULT;
- }
- spin_lock_irqsave (&chip->lock, flags);
- /* Advance software pointer */
- buffer += sz;
- channel->filled_frags--;
- channel->swptr += channel->frag_sz;
- channel->swptr %= channel->buf_sz;
- i -= sz;
- }
- spin_unlock_irqrestore (&chip->lock, flags);
- return bytes - i;
- }
- static struct file_operations forte_dsp_fops = {
- owner: THIS_MODULE,
- llseek: &no_llseek,
- read: &forte_dsp_read,
- write: &forte_dsp_write,
- poll: &forte_dsp_poll,
- ioctl: &forte_dsp_ioctl,
- open: &forte_dsp_open,
- release: &forte_dsp_release,
- mmap: &forte_dsp_mmap,
- };
- /* Common ------------------------------------------------------------------ */
- /**
- * forte_interrupt:
- */
- static void
- forte_interrupt (int irq, void *dev_id, struct pt_regs *regs)
- {
- struct forte_chip *chip = dev_id;
- struct forte_channel *channel = NULL;
- u16 status, count;
- status = inw (chip->iobase + FORTE_IRQ_STATUS);
- /* If this is not for us, get outta here ASAP */
- if ((status & (FORTE_IRQ_PLAYBACK | FORTE_IRQ_CAPTURE)) == 0)
- return;
-
- if (status & FORTE_IRQ_PLAYBACK) {
- channel = &chip->play;
- spin_lock (&chip->lock);
- /* Declare a fragment done */
- channel->filled_frags--;
- /* Get # of completed bytes */
- count = inw (channel->iobase + FORTE_PLY_COUNT) + 1;
- channel->bytes += count;
- if (count == 0) {
- DPRINTK ("%s: last, filled_frags = %dn", __FUNCTION__,
- channel->filled_frags);
- channel->filled_frags = 0;
- forte_channel_stop (channel);
- goto pack;
- }
- channel->nr_irqs++;
-
- /* Flip-flop between buffer I and II */
- channel->next_buf ^= 1;
- /* Advance hardware pointer by fragment size and wrap around */
- channel->hwptr += channel->frag_sz;
- channel->hwptr %= channel->buf_sz;
- /* Buffer I or buffer II BAR */
- outl (channel->buf_handle + channel->hwptr,
- channel->next_buf == 0 ?
- channel->iobase + FORTE_PLY_BUF1 :
- channel->iobase + FORTE_PLY_BUF2);
- /* If the currently playing fragment is last, schedule stop */
- if (channel->filled_frags == 1)
- forte_channel_stop (channel);
- pack:
- /* Acknowledge interrupt */
- outw (FORTE_IRQ_PLAYBACK, chip->iobase + FORTE_IRQ_STATUS);
- spin_unlock (&chip->lock);
- if (channel->blocked || channel->drain)
- wake_up_interruptible (&channel->wait);
- }
- if (status & FORTE_IRQ_CAPTURE) {
- channel = &chip->rec;
- spin_lock (&chip->lock);
- /* One fragment filled */
- channel->filled_frags++;
- /* Get # of completed bytes */
- count = inw (channel->iobase + FORTE_PLY_COUNT) + 1;
- if (count == 0) {
- DPRINTK ("%s: last, filled_frags = %dn", __FUNCTION__,
- channel->filled_frags);
- channel->filled_frags = 0;
- goto rack;
- }
-
- /* Buffer I or buffer II BAR */
- outl (channel->buf_handle + channel->hwptr,
- channel->next_buf == 0 ?
- channel->iobase + FORTE_PLY_BUF1 :
- channel->iobase + FORTE_PLY_BUF2);
- /* Flip-flop between buffer I and II */
- channel->next_buf ^= 1;
- /* Advance hardware pointer by fragment size and wrap around */
- channel->hwptr += channel->frag_sz;
- channel->hwptr %= channel->buf_sz;
- /* Out of buffers */
- if (channel->filled_frags == channel->frag_num - 1)
- forte_channel_stop (channel);
- rack:
- /* Acknowledge interrupt */
- outw (FORTE_IRQ_CAPTURE, chip->iobase + FORTE_IRQ_STATUS);
- spin_unlock (&chip->lock);
- if (channel->blocked)
- wake_up_all (&channel->wait);
- }
- return;
- }
- /**
- * forte_proc_read:
- */
- static int
- forte_proc_read (char *page, char **start, off_t off, int count,
- int *eof, void *data)
- {
- int i = 0, p_rate, p_chan, r_rate;
- unsigned short p_reg, r_reg;
- i += sprintf (page, "ForteMedia FM801 OSS Lite drivern%snn",
- DRIVER_VERSION);
- if (!forte->iobase)
- return i;
- p_rate = p_chan = -1;
- p_reg = inw (forte->iobase + FORTE_PLY_CTRL);
- p_rate = (p_reg >> 8) & 15;
- p_chan = (p_reg >> 12) & 3;
- if (p_rate >= 0 || p_rate <= 10)
- p_rate = rates[p_rate];
- if (p_chan >= 0 || p_chan <= 2)
- p_chan = channels[p_chan];
- r_rate = -1;
- r_reg = inw (forte->iobase + FORTE_CAP_CTRL);
- r_rate = (r_reg >> 8) & 15;
- if (r_rate >= 0 || r_rate <= 10)
- r_rate = rates[r_rate];
- i += sprintf (page + i,
- " Playback Capturen"
- "FIFO empty : %-3s %-3sn"
- "Buf1 Last : %-3s %-3sn"
- "Buf2 Last : %-3s %-3sn"
- "Started : %-3s %-3sn"
- "Paused : %-3s %-3sn"
- "Immed Stop : %-3s %-3sn"
- "Rate : %-5d %-5dn"
- "Channels : %-5d -n"
- "16-bit : %-3s %-3sn"
- "Stereo : %-3s %-3sn",
- p_reg & 1<<0 ? "yes" : "no",
- r_reg & 1<<0 ? "yes" : "no",
- p_reg & 1<<1 ? "yes" : "no",
- r_reg & 1<<1 ? "yes" : "no",
- p_reg & 1<<2 ? "yes" : "no",
- r_reg & 1<<2 ? "yes" : "no",
- p_reg & 1<<5 ? "yes" : "no",
- r_reg & 1<<5 ? "yes" : "no",
- p_reg & 1<<6 ? "yes" : "no",
- r_reg & 1<<6 ? "yes" : "no",
- p_reg & 1<<7 ? "yes" : "no",
- r_reg & 1<<7 ? "yes" : "no",
- p_rate, r_rate,
- p_chan,
- p_reg & 1<<14 ? "yes" : "no",
- r_reg & 1<<14 ? "yes" : "no",
- p_reg & 1<<15 ? "yes" : "no",
- r_reg & 1<<15 ? "yes" : "no");
- return i;
- }
- /**
- * forte_proc_init:
- *
- * Creates driver info entries in /proc
- */
- static int __init
- forte_proc_init (void)
- {
- if (!proc_mkdir ("driver/forte", 0))
- return -EIO;
- if (!create_proc_read_entry ("driver/forte/chip", 0, 0, forte_proc_read, forte)) {
- remove_proc_entry ("driver/forte", NULL);
- return -EIO;
- }
- if (!create_proc_read_entry("driver/forte/ac97", 0, 0, ac97_read_proc, forte->ac97)) {
- remove_proc_entry ("driver/forte/chip", NULL);
- remove_proc_entry ("driver/forte", NULL);
- return -EIO;
- }
- return 0;
- }
- /**
- * forte_proc_remove:
- *
- * Removes driver info entries in /proc
- */
- static void
- forte_proc_remove (void)
- {
- remove_proc_entry ("driver/forte/ac97", NULL);
- remove_proc_entry ("driver/forte/chip", NULL);
- remove_proc_entry ("driver/forte", NULL);
- }
- /**
- * forte_chip_init:
- * @chip: Chip instance to initialize
- *
- * Description:
- * Resets chip, configures codec and registers the driver with
- * the sound subsystem.
- *
- * Press and hold Start for 8 secs, then switch on Run
- * and hold for 4 seconds. Let go of Start. Numbers
- * assume a properly oiled TWG.
- */
- static int __devinit
- forte_chip_init (struct forte_chip *chip)
- {
- u8 revision;
- u16 cmdw;
- struct ac97_codec *codec;
- pci_read_config_byte (chip->pci_dev, PCI_REVISION_ID, &revision);
- if (revision >= 0xB1) {
- chip->multichannel = 1;
- printk (KERN_INFO PFX "Multi-channel device detected.n");
- }
- /* Reset chip */
- outw (FORTE_CC_CODEC_RESET | FORTE_CC_AC97_RESET,
- chip->iobase + FORTE_CODEC_CTRL);
- udelay(100);
- outw (0, chip->iobase + FORTE_CODEC_CTRL);
- /* Request read from AC97 */
- outw (FORTE_AC97_READ | (0 << FORTE_AC97_ADDR_SHIFT),
- chip->iobase + FORTE_AC97_CMD);
- mdelay(750);
- if ((inw (chip->iobase + FORTE_AC97_CMD) & (3<<8)) != (1<<8)) {
- printk (KERN_INFO PFX "AC97 codec not responding");
- return -EIO;
- }
- /* Init volume */
- outw (0x0808, chip->iobase + FORTE_PCM_VOL);
- outw (0x9f1f, chip->iobase + FORTE_FM_VOL);
- outw (0x8808, chip->iobase + FORTE_I2S_VOL);
- /* I2S control - I2S mode */
- outw (0x0003, chip->iobase + FORTE_I2S_MODE);
- /* Interrupt setup - unmask PLAYBACK & CAPTURE */
- cmdw = inw (chip->iobase + FORTE_IRQ_MASK);
- cmdw &= ~0x0003;
- outw (cmdw, chip->iobase + FORTE_IRQ_MASK);
- /* Interrupt clear */
- outw (FORTE_IRQ_PLAYBACK|FORTE_IRQ_CAPTURE,
- chip->iobase + FORTE_IRQ_STATUS);
- /* Set up the AC97 codec */
- if ((codec = kmalloc (sizeof (struct ac97_codec), GFP_KERNEL)) == NULL)
- return -ENOMEM;
- memset (codec, 0, sizeof (struct ac97_codec));
- codec->private_data = chip;
- codec->codec_read = forte_ac97_read;
- codec->codec_write = forte_ac97_write;
- codec->id = 0;
- if (ac97_probe_codec (codec) == 0) {
- printk (KERN_ERR PFX "codec probe failedn");
- kfree (codec);
- return -1;
- }
- /* Register mixer */
- if ((codec->dev_mixer =
- register_sound_mixer (&forte_mixer_fops, -1)) < 0) {
- printk (KERN_ERR PFX "couldn't register mixer!n");
- kfree (codec);
- return -1;
- }
- chip->ac97 = codec;
- /* Register DSP */
- if ((chip->dsp = register_sound_dsp (&forte_dsp_fops, -1) ) < 0) {
- printk (KERN_ERR PFX "couldn't register dsp!n");
- return -1;
- }
- /* Register with /proc */
- if (forte_proc_init()) {
- printk (KERN_ERR PFX "couldn't add entries to /proc!n");
- return -1;
- }
- return 0;
- }
- /**
- * forte_probe:
- * @pci_dev: PCI struct for probed device
- * @pci_id:
- *
- * Description:
- * Allocates chip instance, I/O region, and IRQ
- */
- static int __init
- forte_probe (struct pci_dev *pci_dev, const struct pci_device_id *pci_id)
- {
- struct forte_chip *chip;
- int ret = 0;
- /* FIXME: Support more than one chip */
- if (found++)
- return -EIO;
- /* Ignition */
- if (pci_enable_device (pci_dev))
- return -EIO;
- pci_set_master (pci_dev);
- /* Allocate chip instance and configure */
- forte = (struct forte_chip *)
- kmalloc (sizeof (struct forte_chip), GFP_KERNEL);
- chip = forte;
- if (chip == NULL) {
- printk (KERN_WARNING PFX "Out of memory");
- return -ENOMEM;
- }
- memset (chip, 0, sizeof (struct forte_chip));
- chip->pci_dev = pci_dev;
- init_MUTEX(&chip->open_sem);
- spin_lock_init (&chip->lock);
- spin_lock_init (&chip->ac97_lock);
- if (! request_region (pci_resource_start (pci_dev, 0),
- pci_resource_len (pci_dev, 0), DRIVER_NAME)) {
- printk (KERN_WARNING PFX "Unable to reserve I/O space");
- ret = -ENOMEM;
- goto error;
- }
- chip->iobase = pci_resource_start (pci_dev, 0);
- chip->irq = pci_dev->irq;
- if (request_irq (chip->irq, forte_interrupt, SA_SHIRQ, DRIVER_NAME,
- chip)) {
- printk (KERN_WARNING PFX "Unable to reserve IRQ");
- ret = -EIO;
- goto error;
- }
-
- pci_set_drvdata (pci_dev, chip);
- printk (KERN_INFO PFX "FM801 chip found at 0x%04lX-0x%04lX IRQ %un",
- chip->iobase, pci_resource_end (pci_dev, 0), chip->irq);
- /* Power it up */
- if ((ret = forte_chip_init (chip)) == 0)
- return 0;
- error:
- if (chip->irq)
- free_irq (chip->irq, chip);
- if (chip->iobase)
- release_region (pci_resource_start (pci_dev, 0),
- pci_resource_len (pci_dev, 0));
-
- kfree (chip);
- return ret;
- }
- /**
- * forte_remove:
- * @pci_dev: PCI device to unclaim
- *
- */
- static void
- forte_remove (struct pci_dev *pci_dev)
- {
- struct forte_chip *chip = pci_get_drvdata (pci_dev);
- if (chip == NULL)
- return;
- /* Turn volume down to avoid popping */
- outw (0x1f1f, chip->iobase + FORTE_PCM_VOL);
- outw (0x1f1f, chip->iobase + FORTE_FM_VOL);
- outw (0x1f1f, chip->iobase + FORTE_I2S_VOL);
- forte_proc_remove();
- free_irq (chip->irq, chip);
- release_region (chip->iobase, pci_resource_len (pci_dev, 0));
- unregister_sound_dsp (chip->dsp);
- unregister_sound_mixer (chip->ac97->dev_mixer);
- kfree (chip);
- printk (KERN_INFO PFX "driver releasedn");
- }
- static struct pci_device_id forte_pci_ids[] __devinitdata = {
- { 0x1319, 0x0801, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
- { 0, }
- };
- static struct pci_driver forte_pci_driver = {
- name: DRIVER_NAME,
- id_table: forte_pci_ids,
- probe: forte_probe,
- remove: forte_remove,
- };
- /**
- * forte_init_module:
- *
- */
- static int __init
- forte_init_module (void)
- {
- if (!pci_present())
- return -ENODEV;
- printk (KERN_INFO PFX DRIVER_VERSION "n");
- if (!pci_register_driver (&forte_pci_driver)) {
- pci_unregister_driver (&forte_pci_driver);
- return -ENODEV;
- }
- return 0;
- }
- /**
- * forte_cleanup_module:
- *
- */
- static void __exit
- forte_cleanup_module (void)
- {
- pci_unregister_driver (&forte_pci_driver);
- }
- module_init(forte_init_module);
- module_exit(forte_cleanup_module);
- MODULE_AUTHOR("Martin K. Petersen <mkp@mkp.net>");
- MODULE_DESCRIPTION("ForteMedia FM801 OSS Driver");
- MODULE_LICENSE("GPL");
- MODULE_DEVICE_TABLE (pci, forte_pci_ids);