diff options
Diffstat (limited to 'sound/oss/forte.c')
| -rw-r--r-- | sound/oss/forte.c | 2139 |
1 files changed, 0 insertions, 2139 deletions
diff --git a/sound/oss/forte.c b/sound/oss/forte.c deleted file mode 100644 index ea1c0207aef..00000000000 --- a/sound/oss/forte.c +++ /dev/null @@ -1,2139 +0,0 @@ -/* - * forte.c - ForteMedia FM801 OSS Driver - * - * Written by Martin K. Petersen <mkp@mkp.net> - * Copyright (C) 2002 Hewlett-Packard Company - * Portions Copyright (C) 2003 Martin K. Petersen - * - * Latest version: http://mkp.net/forte/ - * - * 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 - * - */ - -#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/sound.h> -#include <linux/ac97_codec.h> -#include <linux/interrupt.h> - -#include <linux/proc_fs.h> -#include <linux/mutex.h> - -#include <asm/uaccess.h> -#include <asm/io.h> - -#define DRIVER_NAME "forte" -#define DRIVER_VERSION "$Id: forte.c,v 1.63 2003/03/01 05:32:42 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 2 -#define FORTE_MAX_FRAGMENTS 256 -#define FORTE_DEF_FRAGMENTS 2 -#define FORTE_MIN_BUF_MSECS 500 -#define FORTE_MAX_BUF_MSECS 1000 - -/* 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 frag_msecs; /* Milliseconds per frag */ - 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 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 */ - unsigned int residue; /* Partial fragment */ -}; - - -struct forte_chip { - struct pci_dev *pci_dev; - unsigned long iobase; - int irq; - - struct mutex open_mutex; /* 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 - */ - -static 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 busy\n"); - 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%x\n", - 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 - */ - -static 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 busy\n"); - 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 write\n"); - 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; - 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 */ - 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 = %s\n", __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->active = 0; - channel->bytes = 0; - channel->nr_irqs = 0; - channel->mapped = 0; - channel->residue = 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 || channel->active) - return; - - channel->ctrl &= ~(FORTE_PAUSE | FORTE_BUF1_LAST | FORTE_BUF2_LAST - | FORTE_IMMED_STOP); - 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; - - channel->ctrl &= ~(FORTE_START | FORTE_PAUSE); - channel->ctrl |= FORTE_IMMED_STOP; - - channel->active = 0; - outw (channel->ctrl, channel->iobase + FORTE_PLY_CTRL); -} - - -/** - * forte_channel_pause: - * @channel: Channel to pause - * - * Locking: Must be called with lock held. - */ - -static void inline -forte_channel_pause (struct forte_channel *channel) -{ - if (!channel || !channel->iobase) - return; - - channel->ctrl |= FORTE_PAUSE; - - 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 = %d\n", __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 %d\n", __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 = %d\n", __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. - */ - -static void -forte_channel_buffer (struct forte_channel *channel, int sz, int num) -{ - unsigned int msecs, shift; - - /* Go away, I'm busy */ - if (channel->filled_frags || channel->bytes) - return; - - /* Fragment size must be a power of 2 */ - shift = 0; sz++; - while (sz >>= 1) - shift++; - channel->frag_sz = 1 << shift; - - /* Round fragment size to something reasonable */ - 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; - - /* Find fragment length in milliseconds */ - msecs = channel->frag_sz / - (channel->format == AFMT_S16_LE ? 2 : 1) / - (channel->stereo ? 2 : 1) / - (channel->rate / 1000); - - channel->frag_msecs = msecs; - - /* Pick a suitable number of fragments */ - if (msecs * num < FORTE_MIN_BUF_MSECS) - num = FORTE_MIN_BUF_MSECS / msecs; - - if (msecs * num > FORTE_MAX_BUF_MSECS) - num = FORTE_MAX_BUF_MSECS / msecs; - - /* Fragment number must be a power of 2 */ - shift = 0; - while (num >>= 1) - shift++; - channel->frag_num = 1 << (shift + 1); - - /* Round fragment number to something reasonable */ - 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; - - channel->buf_sz = channel->frag_sz * channel->frag_num; - - DPRINTK ("%s: %s frag_sz = %d, frag_num = %d, buf_sz = %d\n", - __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; - - forte_channel_buffer (channel, channel->frag_sz, channel->frag_num); - 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 = %d\n", - __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); - - /* FIXME: can this go away ? */ - for (i = 0 ; i < channel->buf_pages ; i++) - SetPageReserved(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; - - DPRINTK ("%s\n", __FUNCTION__); - - if (channel->mapped) { - spin_lock_irqsave (&forte->lock, flags); - forte_channel_stop (channel); - spin_unlock_irqrestore (&forte->lock, flags); - return 0; - } - - spin_lock_irqsave (&forte->lock, flags); - add_wait_queue (&channel->wait, &wait); - - for (;;) { - if (channel->active == 0 || channel->filled_frags == 1) - break; - - spin_unlock_irqrestore (&forte->lock, flags); - - __set_current_state (TASK_INTERRUPTIBLE); - schedule(); - - spin_lock_irqsave (&forte->lock, flags); - } - - forte_channel_stop (channel); - forte_channel_reset (channel); - set_current_state (TASK_RUNNING); - remove_wait_queue (&channel->wait, &wait); - spin_unlock_irqrestore (&forte->lock, flags); - - 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 @ %p\n", __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 @ %p\n", __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 @ %p\n", __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); - channel->frag_sz = FORTE_DEF_FRAG_SIZE; - channel->frag_num = 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: %s\n", __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; - void __user *argp = (void __user *)arg; - int __user *p = argp; - - 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, p); - - case SNDCTL_DSP_GETCAPS: - DPRINTK ("%s: GETCAPS\n", __FUNCTION__); - - ival = FORTE_CAPS; /* DUPLEX */ - return put_user (ival, p); - - case SNDCTL_DSP_GETFMTS: - DPRINTK ("%s: GETFMTS\n", __FUNCTION__); - - ival = FORTE_FMTS; /* U8, 16LE */ - return put_user (ival, p); - - case SNDCTL_DSP_SETFMT: /* U8, 16LE */ - DPRINTK ("%s: SETFMT\n", __FUNCTION__); - - if (get_user (ival, p)) - 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, p); - - case SNDCTL_DSP_STEREO: /* 0 - mono, 1 - stereo */ - DPRINTK ("%s: STEREO\n", __FUNCTION__); - - if (get_user (ival, p)) - 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, p); - - case SNDCTL_DSP_CHANNELS: /* 1 - mono, 2 - stereo */ - DPRINTK ("%s: CHANNELS\n", __FUNCTION__); - - if (get_user (ival, p)) - 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, p); - - case SNDCTL_DSP_SPEED: - DPRINTK ("%s: SPEED\n", __FUNCTION__); - - if (get_user (ival, p)) - 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, p); - - case SNDCTL_DSP_GETBLKSIZE: - DPRINTK ("%s: GETBLKSIZE\n", __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, p); - - case SNDCTL_DSP_RESET: - DPRINTK ("%s: RESET\n", __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: SYNC\n", __FUNCTION__); - - if (wr) - ret = forte_channel_drain (&chip->play); - - return 0; - - case SNDCTL_DSP_POST: - DPRINTK ("%s: POST\n", __FUNCTION__); - - if (wr) { - spin_lock_irq (&chip->lock); - - if (chip->play.filled_frags) - forte_channel_start (&chip->play); - - spin_unlock_irq (&chip->lock); - } - - return 0; - - case SNDCTL_DSP_SETFRAGMENT: - DPRINTK ("%s: SETFRAGMENT\n", __FUNCTION__); - - if (get_user (ival, p)) - 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, p); - - case SNDCTL_DSP_GETISPACE: - DPRINTK ("%s: GETISPACE\n", __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 (argp, &abi, sizeof (abi)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETIPTR: - DPRINTK ("%s: GETIPTR\n", __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 (argp, &cinfo, sizeof (cinfo)) ? -EFAULT : 0; - - 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; - - if (chip->play.residue) - abi.fragments--; - - abi.bytes = abi.fragments * abi.fragsize + - chip->play.residue; - } - - spin_unlock_irq (&chip->lock); - - return copy_to_user (argp, &abi, sizeof (abi)) ? -EFAULT : 0; - - 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 (argp, &cinfo, sizeof (cinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETODELAY: - if (!wr) - return -EINVAL; - - spin_lock_irq (&chip->lock); - - if (!chip->play.active) { - ival = 0; - } - else 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; - - if (chip->play.residue) - ival += chip->play.frag_sz - chip->play.residue; - } - - spin_unlock_irq (&chip->lock); - - return put_user (ival, p); - - case SNDCTL_DSP_SETDUPLEX: - DPRINTK ("%s: SETDUPLEX\n", __FUNCTION__); - - return -EINVAL; - - case SNDCTL_DSP_GETTRIGGER: - DPRINTK ("%s: GETTRIGGER\n", __FUNCTION__); - - return put_user (chip->trigger, p); - - case SNDCTL_DSP_SETTRIGGER: - - if (get_user (ival, p)) - return -EFAULT; - - DPRINTK ("%s: SETTRIGGER %d\n", __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_RATE\n", __FUNCTION__); - return put_user (chip->play.rate, p); - - case SOUND_PCM_READ_CHANNELS: - DPRINTK ("%s: PCM_READ_CHANNELS\n", __FUNCTION__); - return put_user (chip->play.stereo, p); - - case SOUND_PCM_READ_BITS: - DPRINTK ("%s: PCM_READ_BITS\n", __FUNCTION__); - return put_user (chip->play.format, p); - - case SNDCTL_DSP_NONBLOCK: - DPRINTK ("%s: DSP_NONBLOCK\n", __FUNCTION__); - file->f_flags |= O_NONBLOCK; - return 0; - - default: - DPRINTK ("Unsupported ioctl: %x (%p)\n", cmd, argp); - 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 (file->f_flags & O_NONBLOCK) { - if (!mutex_trylock(&chip->open_mutex)) { - DPRINTK ("%s: returning -EAGAIN\n", __FUNCTION__); - return -EAGAIN; - } - } - else { - if (mutex_lock_interruptible(&chip->open_mutex)) { - DPRINTK ("%s: returning -ERESTARTSYS\n", __FUNCTION__); - return -ERESTARTSYS; - } - } - - file->private_data = forte; - - DPRINTK ("%s: dsp opened by %d\n", __FUNCTION__, current->pid); - - 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 nonseekable_open( |