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root/sound/oss/msnd_pinnacle.c

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DEFINITIONS

This source file includes following definitions.
  1. chk_send_dsp_cmd
  2. reset_play_queue
  3. reset_record_queue
  4. reset_queues
  5. dsp_set_format
  6. dsp_get_frag_size
  7. dsp_ioctl
  8. mixer_get
  9. mixer_set
  10. mixer_setup
  11. set_recsrc
  12. force_recsrc
  13. mixer_ioctl
  14. dev_ioctl
  15. dsp_write_flush
  16. dsp_halt
  17. dsp_release
  18. dsp_open
  19. set_default_play_audio_parameters
  20. set_default_rec_audio_parameters
  21. set_default_audio_parameters
  22. dev_open
  23. dev_release
  24. pack_DARQ_to_DARF
  25. pack_DAPF_to_DAPQ
  26. dsp_read
  27. dsp_write
  28. dev_read
  29. dev_write
  30. eval_dsp_msg
  31. intr
  32. reset_dsp
  33. probe_multisound
  34. init_sma
  35. calibrate_adc
  36. upload_dsp_code
  37. reset_proteus
  38. initialize
  39. dsp_full_reset
  40. attach_multisound
  41. unload_multisound
  42. msnd_write_cfg
  43. msnd_write_cfg_io0
  44. msnd_write_cfg_io1
  45. msnd_write_cfg_irq
  46. msnd_write_cfg_mem
  47. msnd_activate_logical
  48. msnd_write_cfg_logical
  49. msnd_pinnacle_cfg_devices
  50. msnd_init
  51. msdn_cleanup

/*********************************************************************
 *
 * Turtle Beach MultiSound Sound Card Driver for Linux
 * Linux 2.0/2.2 Version
 *
 * msnd_pinnacle.c / msnd_classic.c
 *
 * -- If MSND_CLASSIC is defined:
 *
 *     -> driver for Turtle Beach Classic/Monterey/Tahiti
 *
 * -- Else
 *
 *     -> driver for Turtle Beach Pinnacle/Fiji
 *
 * Copyright (C) 1998 Andrew Veliath
 *
 * 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.
 *
 * 12-3-2000  Modified IO port validation  Steve Sycamore
 *
 ********************************************************************/

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/smp_lock.h>
#include <asm/irq.h>
#include <asm/io.h>
#include "sound_config.h"
#include "sound_firmware.h"
#ifdef MSND_CLASSIC
# ifndef __alpha__
#  define SLOWIO
# endif
#endif
#include "msnd.h"
#ifdef MSND_CLASSIC
#  ifdef CONFIG_MSNDCLAS_HAVE_BOOT
#    define HAVE_DSPCODEH
#  endif
#  include "msnd_classic.h"
#  define LOGNAME                       "msnd_classic"
#else
#  ifdef CONFIG_MSNDPIN_HAVE_BOOT
#    define HAVE_DSPCODEH
#  endif
#  include "msnd_pinnacle.h"
#  define LOGNAME                       "msnd_pinnacle"
#endif

#ifndef CONFIG_MSND_WRITE_NDELAY
#  define CONFIG_MSND_WRITE_NDELAY      1
#endif

#define get_play_delay_jiffies(size)    ((size) * HZ *                  \
                                         dev.play_sample_size / 8 /     \
                                         dev.play_sample_rate /         \
                                         dev.play_channels)

#define get_rec_delay_jiffies(size)     ((size) * HZ *                  \
                                         dev.rec_sample_size / 8 /      \
                                         dev.rec_sample_rate /          \
                                         dev.rec_channels)

static multisound_dev_t                 dev;

#ifndef HAVE_DSPCODEH
static char                             *dspini, *permini;
static int                              sizeof_dspini, sizeof_permini;
#endif

static int                              dsp_full_reset(void);
static void                             dsp_write_flush(void);

static __inline__ int chk_send_dsp_cmd(multisound_dev_t *dev, register BYTE cmd)
{
        if (msnd_send_dsp_cmd(dev, cmd) == 0)
                return 0;
        dsp_full_reset();
        return msnd_send_dsp_cmd(dev, cmd);
}

static void reset_play_queue(void)
{
        int n;
        LPDAQD lpDAQ;

        dev.last_playbank = -1;
        writew(PCTODSP_OFFSET(0 * DAQDS__size), dev.DAPQ + JQS_wHead);
        writew(PCTODSP_OFFSET(0 * DAQDS__size), dev.DAPQ + JQS_wTail);

        for (n = 0, lpDAQ = dev.base + DAPQ_DATA_BUFF; n < 3; ++n, lpDAQ += DAQDS__size) {
                writew(PCTODSP_BASED((DWORD)(DAP_BUFF_SIZE * n)), lpDAQ + DAQDS_wStart);
                writew(0, lpDAQ + DAQDS_wSize);
                writew(1, lpDAQ + DAQDS_wFormat);
                writew(dev.play_sample_size, lpDAQ + DAQDS_wSampleSize);
                writew(dev.play_channels, lpDAQ + DAQDS_wChannels);
                writew(dev.play_sample_rate, lpDAQ + DAQDS_wSampleRate);
                writew(HIMT_PLAY_DONE * 0x100 + n, lpDAQ + DAQDS_wIntMsg);
                writew(n, lpDAQ + DAQDS_wFlags);
        }
}

static void reset_record_queue(void)
{
        int n;
        LPDAQD lpDAQ;
        unsigned long flags;

        dev.last_recbank = 2;
        writew(PCTODSP_OFFSET(0 * DAQDS__size), dev.DARQ + JQS_wHead);
        writew(PCTODSP_OFFSET(dev.last_recbank * DAQDS__size), dev.DARQ + JQS_wTail);

        /* Critical section: bank 1 access */
        spin_lock_irqsave(&dev.lock, flags);
        msnd_outb(HPBLKSEL_1, dev.io + HP_BLKS);
        memset_io(dev.base, 0, DAR_BUFF_SIZE * 3);
        msnd_outb(HPBLKSEL_0, dev.io + HP_BLKS);
        spin_unlock_irqrestore(&dev.lock, flags);

        for (n = 0, lpDAQ = dev.base + DARQ_DATA_BUFF; n < 3; ++n, lpDAQ += DAQDS__size) {
                writew(PCTODSP_BASED((DWORD)(DAR_BUFF_SIZE * n)) + 0x4000, lpDAQ + DAQDS_wStart);
                writew(DAR_BUFF_SIZE, lpDAQ + DAQDS_wSize);
                writew(1, lpDAQ + DAQDS_wFormat);
                writew(dev.rec_sample_size, lpDAQ + DAQDS_wSampleSize);
                writew(dev.rec_channels, lpDAQ + DAQDS_wChannels);
                writew(dev.rec_sample_rate, lpDAQ + DAQDS_wSampleRate);
                writew(HIMT_RECORD_DONE * 0x100 + n, lpDAQ + DAQDS_wIntMsg);
                writew(n, lpDAQ + DAQDS_wFlags);
        }
}

static void reset_queues(void)
{
        if (dev.mode & FMODE_WRITE) {
                msnd_fifo_make_empty(&dev.DAPF);
                reset_play_queue();
        }
        if (dev.mode & FMODE_READ) {
                msnd_fifo_make_empty(&dev.DARF);
                reset_record_queue();
        }
}

static int dsp_set_format(struct file *file, int val)
{
        int data, i;
        LPDAQD lpDAQ, lpDARQ;

        lpDAQ = dev.base + DAPQ_DATA_BUFF;
        lpDARQ = dev.base + DARQ_DATA_BUFF;

        switch (val) {
        case AFMT_U8:
        case AFMT_S16_LE:
                data = val;
                break;
        default:
                data = DEFSAMPLESIZE;
                break;
        }

        for (i = 0; i < 3; ++i, lpDAQ += DAQDS__size, lpDARQ += DAQDS__size) {
                if (file->f_mode & FMODE_WRITE)
                        writew(data, lpDAQ + DAQDS_wSampleSize);
                if (file->f_mode & FMODE_READ)
                        writew(data, lpDARQ + DAQDS_wSampleSize);
        }
        if (file->f_mode & FMODE_WRITE)
                dev.play_sample_size = data;
        if (file->f_mode & FMODE_READ)
                dev.rec_sample_size = data;

        return data;
}

static int dsp_get_frag_size(void)
{
        int size;
        size = dev.fifosize / 4;
        if (size > 32 * 1024)
                size = 32 * 1024;
        return size;
}

static int dsp_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
        int val, i, data, tmp;
        LPDAQD lpDAQ, lpDARQ;
        audio_buf_info abinfo;
        unsigned long flags;
        int __user *p = (int __user *)arg;

        lpDAQ = dev.base + DAPQ_DATA_BUFF;
        lpDARQ = dev.base + DARQ_DATA_BUFF;

        switch (cmd) {
        case SNDCTL_DSP_SUBDIVIDE:
        case SNDCTL_DSP_SETFRAGMENT:
        case SNDCTL_DSP_SETDUPLEX:
        case SNDCTL_DSP_POST:
                return 0;

        case SNDCTL_DSP_GETIPTR:
        case SNDCTL_DSP_GETOPTR:
        case SNDCTL_DSP_MAPINBUF:
        case SNDCTL_DSP_MAPOUTBUF:
                return -EINVAL;

        case SNDCTL_DSP_GETOSPACE:
                if (!(file->f_mode & FMODE_WRITE))
                        return -EINVAL;
                spin_lock_irqsave(&dev.lock, flags);
                abinfo.fragsize = dsp_get_frag_size();
                abinfo.bytes = dev.DAPF.n - dev.DAPF.len;
                abinfo.fragstotal = dev.DAPF.n / abinfo.fragsize;
                abinfo.fragments = abinfo.bytes / abinfo.fragsize;
                spin_unlock_irqrestore(&dev.lock, flags);
                return copy_to_user((void __user *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;

        case SNDCTL_DSP_GETISPACE:
                if (!(file->f_mode & FMODE_READ))
                        return -EINVAL;
                spin_lock_irqsave(&dev.lock, flags);
                abinfo.fragsize = dsp_get_frag_size();
                abinfo.bytes = dev.DARF.n - dev.DARF.len;
                abinfo.fragstotal = dev.DARF.n / abinfo.fragsize;
                abinfo.fragments = abinfo.bytes / abinfo.fragsize;
                spin_unlock_irqrestore(&dev.lock, flags);
                return copy_to_user((void __user *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;

        case SNDCTL_DSP_RESET:
                dev.nresets = 0;
                reset_queues();
                return 0;

        case SNDCTL_DSP_SYNC:
                dsp_write_flush();
                return 0;

        case SNDCTL_DSP_GETBLKSIZE:
                tmp = dsp_get_frag_size();
                if (put_user(tmp, p))
                        return -EFAULT;
                return 0;

        case SNDCTL_DSP_GETFMTS:
                val = AFMT_S16_LE | AFMT_U8;
                if (put_user(val, p))
                        return -EFAULT;
                return 0;

        case SNDCTL_DSP_SETFMT:
                if (get_user(val, p))
                        return -EFAULT;

                if (file->f_mode & FMODE_WRITE)
                        data = val == AFMT_QUERY
                                ? dev.play_sample_size
                                : dsp_set_format(file, val);
                else
                        data = val == AFMT_QUERY
                                ? dev.rec_sample_size
                                : dsp_set_format(file, val);

                if (put_user(data, p))
                        return -EFAULT;
                return 0;

        case SNDCTL_DSP_NONBLOCK:
                if (!test_bit(F_DISABLE_WRITE_NDELAY, &dev.flags) &&
                    file->f_mode & FMODE_WRITE)
                        dev.play_ndelay = 1;
                if (file->f_mode & FMODE_READ)
                        dev.rec_ndelay = 1;
                return 0;

        case SNDCTL_DSP_GETCAPS:
                val = DSP_CAP_DUPLEX | DSP_CAP_BATCH;
                if (put_user(val, p))
                        return -EFAULT;
                return 0;

        case SNDCTL_DSP_SPEED:
                if (get_user(val, p))
                        return -EFAULT;

                if (val < 8000)
                        val = 8000;

                if (val > 48000)
                        val = 48000;

                data = val;

                for (i = 0; i < 3; ++i, lpDAQ += DAQDS__size, lpDARQ += DAQDS__size) {
                        if (file->f_mode & FMODE_WRITE)
                                writew(data, lpDAQ + DAQDS_wSampleRate);
                        if (file->f_mode & FMODE_READ)
                                writew(data, lpDARQ + DAQDS_wSampleRate);
                }
                if (file->f_mode & FMODE_WRITE)
                        dev.play_sample_rate = data;
                if (file->f_mode & FMODE_READ)
                        dev.rec_sample_rate = data;

                if (put_user(data, p))
                        return -EFAULT;
                return 0;

        case SNDCTL_DSP_CHANNELS:
        case SNDCTL_DSP_STEREO:
                if (get_user(val, p))
                        return -EFAULT;

                if (cmd == SNDCTL_DSP_CHANNELS) {
                        switch (val) {
                        case 1:
                        case 2:
                                data = val;
                                break;
                        default:
                                val = data = 2;
                                break;
                        }
                } else {
                        switch (val) {
                        case 0:
                                data = 1;
                                break;
                        default:
                                val = 1;
                        case 1:
                                data = 2;
                                break;
                        }
                }

                for (i = 0; i < 3; ++i, lpDAQ += DAQDS__size, lpDARQ += DAQDS__size) {
                        if (file->f_mode & FMODE_WRITE)
                                writew(data, lpDAQ + DAQDS_wChannels);
                        if (file->f_mode & FMODE_READ)
                                writew(data, lpDARQ + DAQDS_wChannels);
                }
                if (file->f_mode & FMODE_WRITE)
                        dev.play_channels = data;
                if (file->f_mode & FMODE_READ)
                        dev.rec_channels = data;

                if (put_user(val, p))
                        return -EFAULT;
                return 0;
        }

        return -EINVAL;
}

static int mixer_get(int d)
{
        if (d > 31)
                return -EINVAL;

        switch (d) {
        case SOUND_MIXER_VOLUME:
        case SOUND_MIXER_PCM:
        case SOUND_MIXER_LINE:
        case SOUND_MIXER_IMIX:
        case SOUND_MIXER_LINE1:
#ifndef MSND_CLASSIC
        case SOUND_MIXER_MIC:
        case SOUND_MIXER_SYNTH:
#endif
                return (dev.left_levels[d] >> 8) * 100 / 0xff | 
                        (((dev.right_levels[d] >> 8) * 100 / 0xff) << 8);
        default:
                return 0;
        }
}

#define update_volm(a,b)                                                \
        writew((dev.left_levels[a] >> 1) *                              \
               readw(dev.SMA + SMA_wCurrMastVolLeft) / 0xffff,  \
               dev.SMA + SMA_##b##Left);                                \
        writew((dev.right_levels[a] >> 1)  *                    \
               readw(dev.SMA + SMA_wCurrMastVolRight) / 0xffff, \
               dev.SMA + SMA_##b##Right);

#define update_potm(d,s,ar)                                             \
        writeb((dev.left_levels[d] >> 8) *                              \
               readw(dev.SMA + SMA_wCurrMastVolLeft) / 0xffff,  \
               dev.SMA + SMA_##s##Left);                                \
        writeb((dev.right_levels[d] >> 8) *                             \
               readw(dev.SMA + SMA_wCurrMastVolRight) / 0xffff, \
               dev.SMA + SMA_##s##Right);                               \
        if (msnd_send_word(&dev, 0, 0, ar) == 0)                        \
                chk_send_dsp_cmd(&dev, HDEX_AUX_REQ);

#define update_pot(d,s,ar)                              \
        writeb(dev.left_levels[d] >> 8,         \
               dev.SMA + SMA_##s##Left);                \
        writeb(dev.right_levels[d] >> 8,                \
               dev.SMA + SMA_##s##Right);               \
        if (msnd_send_word(&dev, 0, 0, ar) == 0)        \
                chk_send_dsp_cmd(&dev, HDEX_AUX_REQ);

static int mixer_set(int d, int value)
{
        int left = value & 0x000000ff;
        int right = (value & 0x0000ff00) >> 8;
        int bLeft, bRight;
        int wLeft, wRight;
        int updatemaster = 0;

        if (d > 31)
                return -EINVAL;

        bLeft = left * 0xff / 100;
        wLeft = left * 0xffff / 100;

        bRight = right * 0xff / 100;
        wRight = right * 0xffff / 100;

        dev.left_levels[d] = wLeft;
        dev.right_levels[d] = wRight;

        switch (d) {
                /* master volume unscaled controls */
        case SOUND_MIXER_LINE:                  /* line pot control */
                /* scaled by IMIX in digital mix */
                writeb(bLeft, dev.SMA + SMA_bInPotPosLeft);
                writeb(bRight, dev.SMA + SMA_bInPotPosRight);
                if (msnd_send_word(&dev, 0, 0, HDEXAR_IN_SET_POTS) == 0)
                        chk_send_dsp_cmd(&dev, HDEX_AUX_REQ);
                break;
#ifndef MSND_CLASSIC
        case SOUND_MIXER_MIC:                   /* mic pot control */
                /* scaled by IMIX in digital mix */
                writeb(bLeft, dev.SMA + SMA_bMicPotPosLeft);
                writeb(bRight, dev.SMA + SMA_bMicPotPosRight);
                if (msnd_send_word(&dev, 0, 0, HDEXAR_MIC_SET_POTS) == 0)
                        chk_send_dsp_cmd(&dev, HDEX_AUX_REQ);
                break;
#endif
        case SOUND_MIXER_VOLUME:                /* master volume */
                writew(wLeft, dev.SMA + SMA_wCurrMastVolLeft);
                writew(wRight, dev.SMA + SMA_wCurrMastVolRight);
                /* fall through */

        case SOUND_MIXER_LINE1:                 /* aux pot control */
                /* scaled by master volume */
                /* fall through */

                /* digital controls */
        case SOUND_MIXER_SYNTH:                 /* synth vol (dsp mix) */
        case SOUND_MIXER_PCM:                   /* pcm vol (dsp mix) */
        case SOUND_MIXER_IMIX:                  /* input monitor (dsp mix) */
                /* scaled by master volume */
                updatemaster = 1;
                break;

        default:
                return 0;
        }

        if (updatemaster) {
                /* update master volume scaled controls */
                update_volm(SOUND_MIXER_PCM, wCurrPlayVol);
                update_volm(SOUND_MIXER_IMIX, wCurrInVol);
#ifndef MSND_CLASSIC
                update_volm(SOUND_MIXER_SYNTH, wCurrMHdrVol);
#endif
                update_potm(SOUND_MIXER_LINE1, bAuxPotPos, HDEXAR_AUX_SET_POTS);
        }

        return mixer_get(d);
}

static void mixer_setup(void)
{
        update_pot(SOUND_MIXER_LINE, bInPotPos, HDEXAR_IN_SET_POTS);
        update_potm(SOUND_MIXER_LINE1, bAuxPotPos, HDEXAR_AUX_SET_POTS);
        update_volm(SOUND_MIXER_PCM, wCurrPlayVol);
        update_volm(SOUND_MIXER_IMIX, wCurrInVol);
#ifndef MSND_CLASSIC
        update_pot(SOUND_MIXER_MIC, bMicPotPos, HDEXAR_MIC_SET_POTS);
        update_volm(SOUND_MIXER_SYNTH, wCurrMHdrVol);
#endif
}

static unsigned long set_recsrc(unsigned long recsrc)
{
        if (dev.recsrc == recsrc)
                return dev.recsrc;
#ifdef HAVE_NORECSRC
        else if (recsrc == 0)
                dev.recsrc = 0;
#endif
        else
                dev.recsrc ^= recsrc;

#ifndef MSND_CLASSIC
        if (dev.recsrc & SOUND_MASK_IMIX) {
                if (msnd_send_word(&dev, 0, 0, HDEXAR_SET_ANA_IN) == 0)
                        chk_send_dsp_cmd(&dev, HDEX_AUX_REQ);
        }
        else if (dev.recsrc & SOUND_MASK_SYNTH) {
                if (msnd_send_word(&dev, 0, 0, HDEXAR_SET_SYNTH_IN) == 0)
                        chk_send_dsp_cmd(&dev, HDEX_AUX_REQ);
        }
        else if ((dev.recsrc & SOUND_MASK_DIGITAL1) && test_bit(F_HAVEDIGITAL, &dev.flags)) {
                if (msnd_send_word(&dev, 0, 0, HDEXAR_SET_DAT_IN) == 0)
                        chk_send_dsp_cmd(&dev, HDEX_AUX_REQ);
        }
        else {
#ifdef HAVE_NORECSRC
                /* Select no input (?) */
                dev.recsrc = 0;
#else
                dev.recsrc = SOUND_MASK_IMIX;
                if (msnd_send_word(&dev, 0, 0, HDEXAR_SET_ANA_IN) == 0)
                        chk_send_dsp_cmd(&dev, HDEX_AUX_REQ);
#endif
        }
#endif /* MSND_CLASSIC */

        return dev.recsrc;
}

static unsigned long force_recsrc(unsigned long recsrc)
{
        dev.recsrc = 0;
        return set_recsrc(recsrc);
}

#define set_mixer_info()                                                        \
                memset(&info, 0, sizeof(info));                                 \
                strlcpy(info.id, "MSNDMIXER", sizeof(info.id));                 \
                strlcpy(info.name, "MultiSound Mixer", sizeof(info.name));

static int mixer_ioctl(unsigned int cmd, unsigned long arg)
{
        if (cmd == SOUND_MIXER_INFO) {
                mixer_info info;
                set_mixer_info();
                info.modify_counter = dev.mixer_mod_count;
                if (copy_to_user((void __user *)arg, &info, sizeof(info)))
                        return -EFAULT;
                return 0;
        } else if (cmd == SOUND_OLD_MIXER_INFO) {
                _old_mixer_info info;
                set_mixer_info();
                if (copy_to_user((void __user *)arg, &info, sizeof(info)))
                        return -EFAULT;
                return 0;
        } else if (cmd == SOUND_MIXER_PRIVATE1) {
                dev.nresets = 0;
                dsp_full_reset();
                return 0;
        } else if (((cmd >> 8) & 0xff) == 'M') {
                int val = 0;

                if (_SIOC_DIR(cmd) & _SIOC_WRITE) {
                        switch (cmd & 0xff) {
                        case SOUND_MIXER_RECSRC:
                                if (get_user(val, (int __user *)arg))
                                        return -EFAULT;
                                val = set_recsrc(val);
                                break;

                        default:
                                if (get_user(val, (int __user *)arg))
                                        return -EFAULT;
                                val = mixer_set(cmd & 0xff, val);
                                break;
                        }
                        ++dev.mixer_mod_count;
                        return put_user(val, (int __user *)arg);
                } else {
                        switch (cmd & 0xff) {
                        case SOUND_MIXER_RECSRC:
                                val = dev.recsrc;
                                break;

                        case SOUND_MIXER_DEVMASK:
                        case SOUND_MIXER_STEREODEVS:
                                val =   SOUND_MASK_PCM |
                                        SOUND_MASK_LINE |
                                        SOUND_MASK_IMIX |
                                        SOUND_MASK_LINE1 |
#ifndef MSND_CLASSIC
                                        SOUND_MASK_MIC |
                                        SOUND_MASK_SYNTH |
#endif
                                        SOUND_MASK_VOLUME;
                                break;
                                  
                        case SOUND_MIXER_RECMASK:
#ifdef MSND_CLASSIC
                                val =   0;
#else
                                val =   SOUND_MASK_IMIX |
                                        SOUND_MASK_SYNTH;
                                if (test_bit(F_HAVEDIGITAL, &dev.flags))
                                        val |= SOUND_MASK_DIGITAL1;
#endif
                                break;
                                  
                        case SOUND_MIXER_CAPS:
                                val =   SOUND_CAP_EXCL_INPUT;
                                break;

                        default:
                                if ((val = mixer_get(cmd & 0xff)) < 0)
                                        return -EINVAL;
                                break;
                        }
                }

                return put_user(val, (int __user *)arg); 
        }

        return -EINVAL;
}

static int dev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
        int minor = iminor(inode);

        if (cmd == OSS_GETVERSION) {
                int sound_version = SOUND_VERSION;
                return put_user(sound_version, (int __user *)arg);
        }

        if (minor == dev.dsp_minor)
                return dsp_ioctl(file, cmd, arg);
        else if (minor == dev.mixer_minor)
                return mixer_ioctl(cmd, arg);

        return -EINVAL;
}

static void dsp_write_flush(void)
{
        if (!(dev.mode & FMODE_WRITE) || !test_bit(F_WRITING, &dev.flags))
                return;
        set_bit(F_WRITEFLUSH, &dev.flags);
        interruptible_sleep_on_timeout(
                &dev.writeflush,
                get_play_delay_jiffies(dev.DAPF.len));
        clear_bit(F_WRITEFLUSH, &dev.flags);
        if (!signal_pending(current)) {
                current->state = TASK_INTERRUPTIBLE;
                schedule_timeout(get_play_delay_jiffies(DAP_BUFF_SIZE));
        }
        clear_bit(F_WRITING, &dev.flags);
}

static void dsp_halt(struct file *file)
{
        if ((file ? file->f_mode : dev.mode) & FMODE_READ) {
                clear_bit(F_READING, &dev.flags);
                chk_send_dsp_cmd(&dev, HDEX_RECORD_STOP);
                msnd_disable_irq(&dev);
                if (file) {
                        printk(KERN_DEBUG LOGNAME ": Stopping read for %p\n", file);
                        dev.mode &= ~FMODE_READ;
                }
                clear_bit(F_AUDIO_READ_INUSE, &dev.flags);
        }
        if ((file ? file->f_mode : dev.mode) & FMODE_WRITE) {
                if (test_bit(F_WRITING, &dev.flags)) {
                        dsp_write_flush();
                        chk_send_dsp_cmd(&dev, HDEX_PLAY_STOP);
                }
                msnd_disable_irq(&dev);
                if (file) {
                        printk(KERN_DEBUG LOGNAME ": Stopping write for %p\n", file);
                        dev.mode &= ~FMODE_WRITE;
                }
                clear_bit(F_AUDIO_WRITE_INUSE, &dev.flags);
        }
}

static int dsp_release(struct file *file)
{
        dsp_halt(file);
        return 0;
}

static int dsp_open(struct file *file)
{
        if ((file ? file->f_mode : dev.mode) & FMODE_WRITE) {
                set_bit(F_AUDIO_WRITE_INUSE, &dev.flags);
                clear_bit(F_WRITING, &dev.flags);
                msnd_fifo_make_empty(&dev.DAPF);
                reset_play_queue();
                if (file) {
                        printk(KERN_DEBUG LOGNAME ": Starting write for %p\n", file);
                        dev.mode |= FMODE_WRITE;
                }
                msnd_enable_irq(&dev);
        }
        if ((file ? file->f_mode : dev.mode) & FMODE_READ) {
                set_bit(F_AUDIO_READ_INUSE, &dev.flags);
                clear_bit(F_READING, &dev.flags);
                msnd_fifo_make_empty(&dev.DARF);
                reset_record_queue();
                if (file) {
                        printk(KERN_DEBUG LOGNAME ": Starting read for %p\n", file);
                        dev.mode |= FMODE_READ;
                }
                msnd_enable_irq(&dev);
        }
        return 0;
}

static void set_default_play_audio_parameters(void)
{
        dev.play_sample_size = DEFSAMPLESIZE;
        dev.play_sample_rate = DEFSAMPLERATE;
        dev.play_channels = DEFCHANNELS;
}

static void set_default_rec_audio_parameters(void)
{
        dev.rec_sample_size = DEFSAMPLESIZE;
        dev.rec_sample_rate = DEFSAMPLERATE;
        dev.rec_channels = DEFCHANNELS;
}

static void set_default_audio_parameters(void)
{
        set_default_play_audio_parameters();
        set_default_rec_audio_parameters();
}

static int dev_open(struct inode *inode, struct file *file)
{
        int minor = iminor(inode);
        int err = 0;

        if (minor == dev.dsp_minor) {
                if ((file->f_mode & FMODE_WRITE &&
                     test_bit(F_AUDIO_WRITE_INUSE, &dev.flags)) ||
                    (file->f_mode & FMODE_READ &&
                     test_bit(F_AUDIO_READ_INUSE, &dev.flags)))
                        return -EBUSY;

                if ((err = dsp_open(file)) >= 0) {
                        dev.nresets = 0;
                        if (file->f_mode & FMODE_WRITE) {
                                set_default_play_audio_parameters();
                                if (!test_bit(F_DISABLE_WRITE_NDELAY, &dev.flags))
                                        dev.play_ndelay = (file->f_flags & O_NDELAY) ? 1 : 0;
                                else
                                        dev.play_ndelay = 0;
                        }
                        if (file->f_mode & FMODE_READ) {
                                set_default_rec_audio_parameters();
                                dev.rec_ndelay = (file->f_flags & O_NDELAY) ? 1 : 0;
                        }
                }
        }
        else if (minor == dev.mixer_minor) {
                /* nothing */
        } else
                err = -EINVAL;

        return err;
}

static int dev_release(struct inode *inode, struct file *file)
{
        int minor = iminor(inode);
        int err = 0;

        lock_kernel();
        if (minor == dev.dsp_minor)
                err = dsp_release(file);
        else if (minor == dev.mixer_minor) {
                /* nothing */
        } else
                err = -EINVAL;
        unlock_kernel();
        return err;
}

static __inline__ int pack_DARQ_to_DARF(register int bank)
{
        register int size, timeout = 3;
        register WORD wTmp;
        LPDAQD DAQD;

        /* Increment the tail and check for queue wrap */
        wTmp = readw(dev.DARQ + JQS_wTail) + PCTODSP_OFFSET(DAQDS__size);
        if (wTmp > readw(dev.DARQ + JQS_wSize))
                wTmp = 0;
        while (wTmp == readw(dev.DARQ + JQS_wHead) && timeout--)
                udelay(1);
        writew(wTmp, dev.DARQ + JQS_wTail);

        /* Get our digital audio queue struct */
        DAQD = bank * DAQDS__size + dev.base + DARQ_DATA_BUFF;

        /* Get length of data */
        size = readw(DAQD + DAQDS_wSize);

        /* Read data from the head (unprotected bank 1 access okay
           since this is only called inside an interrupt) */
        msnd_outb(HPBLKSEL_1, dev.io + HP_BLKS);
        msnd_fifo_write_io(
                &dev.DARF,
                dev.base + bank * DAR_BUFF_SIZE,
                size);
        msnd_outb(HPBLKSEL_0, dev.io + HP_BLKS);

        return 1;
}

static __inline__ int pack_DAPF_to_DAPQ(register int start)
{
        register WORD DAPQ_tail;
        register int protect = start, nbanks = 0;
        LPDAQD DAQD;

        DAPQ_tail = readw(dev.DAPQ + JQS_wTail);
        while (DAPQ_tail != readw(dev.DAPQ + JQS_wHead) || start) {
                register int bank_num = DAPQ_tail / PCTODSP_OFFSET(DAQDS__size);
                register int n;
                unsigned long flags;

                /* Write the data to the new tail */
                if (protect) {
                        /* Critical section: protect fifo in non-interrupt */
                        spin_lock_irqsave(&dev.lock, flags);
                        n = msnd_fifo_read_io(
                                &dev.DAPF,
                                dev.base + bank_num * DAP_BUFF_SIZE,
                                DAP_BUFF_SIZE);
                        spin_unlock_irqrestore(&dev.lock, flags);
                } else {
                        n = msnd_fifo_read_io(
                                &dev.DAPF,
                                dev.base + bank_num * DAP_BUFF_SIZE,
                                DAP_BUFF_SIZE);
                }
                if (!n)
                        break;

                if (start)
                        start = 0;

                /* Get our digital audio queue struct */
                DAQD = bank_num * DAQDS__size + dev.base + DAPQ_DATA_BUFF;

                /* Write size of this bank */
                writew(n, DAQD + DAQDS_wSize);
                ++nbanks;

                /* Then advance the tail */
                DAPQ_tail = (++bank_num % 3) * PCTODSP_OFFSET(DAQDS__size);
                writew(DAPQ_tail, dev.DAPQ + JQS_wTail);
                /* Tell the DSP to play the bank */
                msnd_send_dsp_cmd(&dev, HDEX_PLAY_START);
        }
        return nbanks;
}

static int dsp_read(char __user *buf, size_t len)
{
        int count = len;
        char *page = (char *)__get_free_page(GFP_KERNEL);

        if (!page)
                return -ENOMEM;

        while (count > 0) {
                int n, k;
                unsigned long flags;

                k = PAGE_SIZE;
                if (k > count)
                        k = count;

                /* Critical section: protect fifo in non-interrupt */
                spin_lock_irqsave(&dev.lock, flags);
                n = msnd_fifo_read(&dev.DARF, page, k);
                spin_unlock_irqrestore(&dev.lock, flags);
                if (copy_to_user(buf, page, n)) {
                        free_page((unsigned long)page);
                        return -EFAULT;
                }
                buf += n;
                count -= n;

                if (n == k && count)
                        continue;

                if (!test_bit(F_READING, &dev.flags) && dev.mode & FMODE_READ) {
                        dev.last_recbank = -1;
                        if (chk_send_dsp_cmd(&dev, HDEX_RECORD_START) == 0)
                                set_bit(F_READING, &dev.flags);
                }

                if (dev.rec_ndelay) {
                        free_page((unsigned long)page);
                        return count == len ? -EAGAIN : len - count;
                }

                if (count > 0) {
                        set_bit(F_READBLOCK, &dev.flags);
                        if (!interruptible_sleep_on_timeout(
                                &dev.readblock,
                                get_rec_delay_jiffies(DAR_BUFF_SIZE)))
                                clear_bit(F_READING, &dev.flags);
                        clear_bit(F_READBLOCK, &dev.flags);
                        if (signal_pending(current)) {
                                free_page((unsigned long)page);
                                return -EINTR;
                        }
                }
        }
        free_page((unsigned long)page);
        return len - count;
}

static int dsp_write(const char __user *buf, size_t len)
{
        int count = len;
        char *page = (char *)__get_free_page(GFP_KERNEL);

        if (!page)
                return -ENOMEM;

        while (count > 0) {
                int n, k;
                unsigned long flags;

                k = PAGE_SIZE;
                if (k > count)
                        k = count;

                if (copy_from_user(page, buf, k)) {
                        free_page((unsigned long)page);
                        return -EFAULT;
                }

                /* Critical section: protect fifo in non-interrupt */
                spin_lock_irqsave(&dev.lock, flags);
                n = msnd_fifo_write(&dev.DAPF, page, k);
                spin_unlock_irqrestore(&dev.lock, flags);
                buf += n;
                count -= n;

                if (count && n == k)
                        continue;

                if (!test_bit(F_WRITING, &dev.flags) && (dev.mode & FMODE_WRITE)) {
                        dev.last_playbank = -1;
                        if (pack_DAPF_to_DAPQ(1) > 0)
                                set_bit(F_WRITING, &dev.flags);
                }

                if (dev.play_ndelay) {
                        free_page((unsigned long)page);
                        return count == len ? -EAGAIN : len - count;
                }

                if (count > 0) {
                        set_bit(F_WRITEBLOCK, &dev.flags);
                        interruptible_sleep_on_timeout(
                                &dev.writeblock,
                                get_play_delay_jiffies(DAP_BUFF_SIZE));
                        clear_bit(F_WRITEBLOCK, &dev.flags);
                        if (signal_pending(current)) {
                                free_page((unsigned long)page);
                                return -EINTR;
                        }
                }
        }

        free_page((unsigned long)page);
        return len - count;
}

static ssize_t dev_read(struct file *file, char __user *buf, size_t count, loff_t *off)
{
        int minor = iminor(file->f_path.dentry->d_inode);
        if (minor == dev.dsp_minor)
                return dsp_read(buf, count);
        else
                return -EINVAL;
}

static ssize_t dev_write(struct file *file, const char __user *buf, size_t count, loff_t *off)
{
        int minor = iminor(file->f_path.dentry->d_inode);
        if (minor == dev.dsp_minor)
                return dsp_write(buf, count);
        else
                return -EINVAL;
}

static __inline__ void eval_dsp_msg(register WORD wMessage)
{
        switch (HIBYTE(wMessage)) {
        case HIMT_PLAY_DONE:
                if (dev.last_playbank == LOBYTE(wMessage) || !test_bit(F_WRITING, &dev.flags))
                        break;
                dev.last_playbank = LOBYTE(wMessage);

                if (pack_DAPF_to_DAPQ(0) <= 0) {
                        if (!test_bit(F_WRITEBLOCK, &dev.flags)) {
                                if (test_and_clear_bit(F_WRITEFLUSH, &dev.flags))
                                        wake_up_interruptible(&dev.writeflush);
                        }
                        clear_bit(F_WRITING, &dev.flags);
                }

                if (test_bit(F_WRITEBLOCK, &dev.flags))
                        wake_up_interruptible(&dev.writeblock);
                break;

        case HIMT_RECORD_DONE:
                if (dev.last_recbank == LOBYTE(wMessage))
                        break;
                dev.last_recbank = LOBYTE(wMessage);

                pack_DARQ_to_DARF(dev.last_recbank);

                if (test_bit(F_READBLOCK, &dev.flags))
                        wake_up_interruptible(&dev.readblock);
                break;

        case HIMT_DSP:
                switch (LOBYTE(wMessage)) {
#ifndef MSND_CLASSIC
                case HIDSP_PLAY_UNDER:
#endif
                case HIDSP_INT_PLAY_UNDER:
/*                      printk(KERN_DEBUG LOGNAME ": Play underflow\n"); */
                        clear_bit(F_WRITING, &dev.flags);
                        break;

                case HIDSP_INT_RECORD_OVER:
/*                      printk(KERN_DEBUG LOGNAME ": Record overflow\n"); */
                        clear_bit(F_READING, &dev.flags);
                        break;

                default:
/*                      printk(KERN_DEBUG LOGNAME ": DSP message %d 0x%02x\n",
                        LOBYTE(wMessage), LOBYTE(wMessage)); */
                        break;
                }
                break;

        case HIMT_MIDI_IN_UCHAR:
                if (dev.midi_in_interrupt)
                        (*dev.midi_in_interrupt)(&dev);
                break;

        default:
/*              printk(KERN_DEBUG LOGNAME ": HIMT message %d 0x%02x\n", HIBYTE(wMessage), HIBYTE(wMessage)); */
                break;
        }
}

static irqreturn_t intr(int irq, void *dev_id)
{
        /* Send ack to DSP */
        msnd_inb(dev.io + HP_RXL);

        /* Evaluate queued DSP messages */
        while (readw(dev.DSPQ + JQS_wTail) != readw(dev.DSPQ + JQS_wHead)) {
                register WORD wTmp;

                eval_dsp_msg(readw(dev.pwDSPQData + 2*readw(dev.DSPQ + JQS_wHead)));

                if ((wTmp = readw(dev.DSPQ + JQS_wHead) + 1) > readw(dev.DSPQ + JQS_wSize))
                        writew(0, dev.DSPQ + JQS_wHead);
                else
                        writew(wTmp, dev.DSPQ + JQS_wHead);
        }
        return IRQ_HANDLED;
}

static const struct file_operations dev_fileops = {
        .owner          = THIS_MODULE,
        .read           = dev_read,
        .write          = dev_write,
        .ioctl          = dev_ioctl,
        .open           = dev_open,
        .release        = dev_release,
};

static int reset_dsp(void)
{
        int timeout = 100;

        msnd_outb(HPDSPRESET_ON, dev.io + HP_DSPR);
        mdelay(1);
#ifndef MSND_CLASSIC
        dev.info = msnd_inb(dev.io + HP_INFO);
#endif
        msnd_outb(HPDSPRESET_OFF, dev.io + HP_DSPR);
        mdelay(1);
        while (timeout-- > 0) {
                if (msnd_inb(dev.io + HP_CVR) == HP_CVR_DEF)
                        return 0;
                mdelay(1);
        }
        printk(KERN_ERR LOGNAME ": Cannot reset DSP\n");

        return -EIO;
}

static int __init probe_multisound(void)
{
#ifndef MSND_CLASSIC
        char *xv, *rev = NULL;
        char *pin = "Pinnacle", *fiji = "Fiji";
        char *pinfiji = "Pinnacle/Fiji";
#endif

        if (!request_region(dev.io, dev.numio, "probing")) {
                printk(KERN_ERR LOGNAME ": I/O port conflict\n");
                return -ENODEV;
        }

        if (reset_dsp() < 0) {
                release_region(dev.io, dev.numio);
                return -ENODEV;
        }

#ifdef MSND_CLASSIC
        dev.name = "Classic/Tahiti/Monterey";
        printk(KERN_INFO LOGNAME ": %s, "
#else
        switch (dev.info >> 4) {
        case 0xf: xv = "<= 1.15"; break;
        case 0x1: xv = "1.18/1.2"; break;
        case 0x2: xv = "1.3"; break;
        case 0x3: xv = "1.4"; break;
        default: xv = "unknown"; break;
        }

        switch (dev.info & 0x7) {
        case 0x0: rev = "I"; dev.name = pin; break;
        case 0x1: rev = "F"; dev.name = pin; break;
        case 0x2: rev = "G"; dev.name = pin; break;
        case 0x3: rev = "H"; dev.name = pin; break;
        case 0x4: rev = "E"; dev.name = fiji; break;
        case 0x5: rev = "C"; dev.name = fiji; break;
        case 0x6: rev = "D"; dev.name = fiji; break;
        case 0x7:
                rev = "A-B (Fiji) or A-E (Pinnacle)";
                dev.name = pinfiji;
                break;
        }
        printk(KERN_INFO LOGNAME ": %s revision %s, Xilinx version %s, "
#endif /* MSND_CLASSIC */
               "I/O 0x%x-0x%x, IRQ %d, memory mapped to %p-%p\n",
               dev.name,
#ifndef MSND_CLASSIC
               rev, xv,
#endif
               dev.io, dev.io + dev.numio - 1,
               dev.irq,
               dev.base, dev.base + 0x7fff);

        release_region(dev.io, dev.numio);
        return 0;
}

static int init_sma(void)
{
        static int initted;
        WORD mastVolLeft, mastVolRight;
        unsigned long flags;

#ifdef MSND_CLASSIC
        msnd_outb(dev.memid, dev.io + HP_MEMM);
#endif
        msnd_outb(HPBLKSEL_0, dev.io + HP_BLKS);
        if (initted) {
                mastVolLeft = readw(dev.SMA + SMA_wCurrMastVolLeft);
                mastVolRight = readw(dev.SMA + SMA_wCurrMastVolRight);
        } else
                mastVolLeft = mastVolRight = 0;
        memset_io(dev.base, 0, 0x8000);

        /* Critical section: bank 1 access */
        spin_lock_irqsave(&dev.lock, flags);
        msnd_outb(HPBLKSEL_1, dev.io + HP_BLKS);
        memset_io(dev.base, 0, 0x8000);
        msnd_outb(HPBLKSEL_0, dev.io + HP_BLKS);
        spin_unlock_irqrestore(&dev.lock, flags);

        dev.pwDSPQData = (dev.base + DSPQ_DATA_BUFF);
        dev.pwMODQData = (dev.base + MODQ_DATA_BUFF);
        dev.pwMIDQData = (dev.base + MIDQ_DATA_BUFF);

        /* Motorola 56k shared memory base */
        dev.SMA = dev.base + SMA_STRUCT_START;

        /* Digital audio play queue */
        dev.DAPQ = dev.base + DAPQ_OFFSET;
        msnd_init_queue(dev.DAPQ, DAPQ_DATA_BUFF, DAPQ_BUFF_SIZE);

        /* Digital audio record queue */
        dev.DARQ = dev.base + DARQ_OFFSET;
        msnd_init_queue(dev.DARQ, DARQ_DATA_BUFF, DARQ_BUFF_SIZE);

        /* MIDI out queue */
        dev.MODQ = dev.base + MODQ_OFFSET;
        msnd_init_queue(dev.MODQ, MODQ_DATA_BUFF, MODQ_BUFF_SIZE);

        /* MIDI in queue */
        dev.MIDQ = dev.base + MIDQ_OFFSET;
        msnd_init_queue(dev.MIDQ, MIDQ_DATA_BUFF, MIDQ_BUFF_SIZE);

        /* DSP -> host message queue */
        dev.DSPQ = dev.base + DSPQ_OFFSET;
        msnd_init_queue(dev.DSPQ, DSPQ_DATA_BUFF, DSPQ_BUFF_SIZE);

        /* Setup some DSP values */
#ifndef MSND_CLASSIC
        writew(1, dev.SMA + SMA_wCurrPlayFormat);
        writew(dev.play_sample_size, dev.SMA + SMA_wCurrPlaySampleSize);
        writew(dev.play_channels, dev.SMA + SMA_wCurrPlayChannels);
        writew(dev.play_sample_rate, dev.SMA + SMA_wCurrPlaySampleRate);
#endif
        writew(dev.play_sample_rate, dev.SMA + SMA_wCalFreqAtoD);
        writew(mastVolLeft, dev.SMA + SMA_wCurrMastVolLeft);
        writew(mastVolRight, dev.SMA + SMA_wCurrMastVolRight);
#ifndef MSND_CLASSIC
        writel(0x00010000, dev.SMA + SMA_dwCurrPlayPitch);
        writel(0x00000001, dev.SMA + SMA_dwCurrPlayRate);
#endif
        writew(0x303, dev.SMA + SMA_wCurrInputTagBits);

        initted = 1;

        return 0;
}

static int __init calibrate_adc(WORD srate)
{
        writew(srate, dev.SMA + SMA_wCalFreqAtoD);
        if (dev.calibrate_signal == 0)
                writew(readw(dev.SMA + SMA_wCurrHostStatusFlags)
                       | 0x0001, dev.SMA + SMA_wCurrHostStatusFlags);
        else
                writew(readw(dev.SMA + SMA_wCurrHostStatusFlags)
                       & ~0x0001, dev.SMA + SMA_wCurrHostStatusFlags);
        if (msnd_send_word(&dev, 0, 0, HDEXAR_CAL_A_TO_D) == 0 &&
            chk_send_dsp_cmd(&dev, HDEX_AUX_REQ) == 0) {
                current->state = TASK_INTERRUPTIBLE;
                schedule_timeout(HZ / 3);
                return 0;
        }
        printk(KERN_WARNING LOGNAME ": ADC calibration failed\n");

        return -EIO;
}

static int upload_dsp_code(void)
{
        msnd_outb(HPBLKSEL_0, dev.io + HP_BLKS);
#ifndef HAVE_DSPCODEH
        INITCODESIZE = mod_firmware_load(INITCODEFILE, &INITCODE);
        if (!INITCODE) {
                printk(KERN_ERR LOGNAME ": Error loading " INITCODEFILE);
                return -EBUSY;
        }

        PERMCODESIZE = mod_firmware_load(PERMCODEFILE, &PERMCODE);
        if (!PERMCODE) {
                printk(KERN_ERR LOGNAME ": Error loading " PERMCODEFILE);
                vfree(INITCODE);
                return -EBUSY;
        }
#endif
        memcpy_toio(dev.base, PERMCODE, PERMCODESIZE);
        if (msnd_upload_host(&dev, INITCODE, INITCODESIZE) < 0) {
                printk(KERN_WARNING LOGNAME ": Error uploading to DSP\n");
                return -ENODEV;
        }
#ifdef HAVE_DSPCODEH
        printk(KERN_INFO LOGNAME ": DSP firmware uploaded (resident)\n");
#else
        printk(KERN_INFO LOGNAME ": DSP firmware uploaded\n");
#endif

#ifndef HAVE_DSPCODEH
        vfree(INITCODE);
        vfree(PERMCODE);
#endif

        return 0;
}

#ifdef MSND_CLASSIC
static void reset_proteus(void)
{
        msnd_outb(HPPRORESET_ON, dev.io + HP_PROR);
        mdelay(TIME_PRO_RESET);
        msnd_outb(HPPRORESET_OFF, dev.io + HP_PROR);
        mdelay(TIME_PRO_RESET_DONE);
}
#endif

static int initialize(void)
{
        int err, timeout;

#ifdef MSND_CLASSIC
        msnd_outb(HPWAITSTATE_0, dev.io + HP_WAIT);
        msnd_outb(HPBITMODE_16, dev.io + HP_BITM);

        reset_proteus();
#endif
        if ((err = init_sma()) < 0) {
                printk(KERN_WARNING LOGNAME ": Cannot initialize SMA\n");
                return err;
        }

        if ((err = reset_dsp()) < 0)
                return err;

        if ((err = upload_dsp_code()) < 0) {
                printk(KERN_WARNING LOGNAME ": Cannot upload DSP code\n");
                return err;
        }

        timeout = 200;
        while (readw(dev.base)) {
                mdelay(1);
                if (!timeout--) {
                        printk(KERN_DEBUG LOGNAME ": DSP reset timeout\n");
                        return -EIO;
                }
        }

        mixer_setup();

        return 0;
}

static int dsp_full_reset(void)
{
        int rv;

        if (test_bit(F_RESETTING, &dev.flags) || ++dev.nresets > 10)
                return 0;

        set_bit(F_RESETTING, &dev.flags);
        printk(KERN_INFO LOGNAME ": DSP reset\n");
        dsp_halt(NULL);                 /* Unconditionally halt */
        if ((rv = initialize()))
                printk(KERN_WARNING LOGNAME ": DSP reset failed\n");
        force_recsrc(dev.recsrc);
        dsp_open(NULL);
        clear_bit(F_RESETTING, &dev.flags);

        return rv;
}

static int __init attach_multisound(void)
{
        int err;

        if ((err = request_irq(dev.irq, intr, 0, dev.name, &dev)) < 0) {
                printk(KERN_ERR LOGNAME ": Couldn't grab IRQ %d\n", dev.irq);
                return err;
        }
        request_region(dev.io, dev.numio, dev.name);

        if ((err = dsp_full_reset()) < 0) {
                release_region(dev.io, dev.numio);
                free_irq(dev.irq, &dev);
                return err;
        }

        if ((err = msnd_register(&dev)) < 0) {
                printk(KERN_ERR LOGNAME ": Unable to register MultiSound\n");
                release_region(dev.io, dev.numio);
                free_irq(dev.irq, &dev);
                return err;
        }

        if ((dev.dsp_minor = register_sound_dsp(&dev_fileops, -1)) < 0) {
                printk(KERN_ERR LOGNAME ": Unable to register DSP operations\n");
                msnd_unregister(&dev);
                release_region(dev.io, dev.numio);
                free_irq(dev.irq, &dev);
                return dev.dsp_minor;
        }

        if ((dev.mixer_minor = register_sound_mixer(&dev_fileops, -1)) < 0) {
                printk(KERN_ERR LOGNAME ": Unable to register mixer operations\n");
                unregister_sound_mixer(dev.mixer_minor);
                msnd_unregister(&dev);
                release_region(dev.io, dev.numio);
                free_irq(dev.irq, &dev);
                return dev.mixer_minor;
        }

        dev.ext_midi_dev = dev.hdr_midi_dev = -1;

        disable_irq(dev.irq);
        calibrate_adc(dev.play_sample_rate);
#ifndef MSND_CLASSIC
        force_recsrc(SOUND_MASK_IMIX);
#endif

        return 0;
}

static void __exit unload_multisound(void)
{
        release_region(dev.io, dev.numio);
        free_irq(dev.irq, &dev);
        unregister_sound_mixer(dev.mixer_minor);
        unregister_sound_dsp(dev.dsp_minor);
        msnd_unregister(&dev);
}

#ifndef MSND_CLASSIC

/* Pinnacle/Fiji Logical Device Configuration */

static int __init msnd_write_cfg(int cfg, int reg, int value)
{
        msnd_outb(reg, cfg);
        msnd_outb(value, cfg + 1);
        if (value != msnd_inb(cfg + 1)) {
                printk(KERN_ERR LOGNAME ": msnd_write_cfg: I/O error\n");
                return -EIO;
        }
        return 0;
}

static int __init msnd_write_cfg_io0(int cfg, int num, WORD io)
{
        if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
                return -EIO;
        if (msnd_write_cfg(cfg, IREG_IO0_BASEHI, HIBYTE(io)))
                return -EIO;
        if (msnd_write_cfg(cfg, IREG_IO0_BASELO, LOBYTE(io)))
                return -EIO;
        return 0;
}

static int __init msnd_write_cfg_io1(int cfg, int num, WORD io)
{
        if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
                return -EIO;
        if (msnd_write_cfg(cfg, IREG_IO1_BASEHI, HIBYTE(io)))
                return -EIO;
        if (msnd_write_cfg(cfg, IREG_IO1_BASELO, LOBYTE(io)))
                return -EIO;
        return 0;
}

static int __init msnd_write_cfg_irq(int cfg, int num, WORD irq)
{
        if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
                return -EIO;
        if (msnd_write_cfg(cfg, IREG_IRQ_NUMBER, LOBYTE(irq)))
                return -EIO;
        if (msnd_write_cfg(cfg, IREG_IRQ_TYPE, IRQTYPE_EDGE))
                return -EIO;
        return 0;
}

static int __init msnd_write_cfg_mem(int cfg, int num, int mem)
{
        WORD wmem;

        mem >>= 8;
        mem &= 0xfff;
        wmem = (WORD)mem;
        if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
                return -EIO;
        if (msnd_write_cfg(cfg, IREG_MEMBASEHI, HIBYTE(wmem)))
                return -EIO;
        if (msnd_write_cfg(cfg, IREG_MEMBASELO, LOBYTE(wmem)))
                return -EIO;
        if (wmem && msnd_write_cfg(cfg, IREG_MEMCONTROL, (MEMTYPE_HIADDR | MEMTYPE_16BIT)))
                return -EIO;
        return 0;
}

static int __init msnd_activate_logical(int cfg, int num)
{
        if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
                return -EIO;
        if (msnd_write_cfg(cfg, IREG_ACTIVATE, LD_ACTIVATE))
                return -EIO;
        return 0;
}

static int __init msnd_write_cfg_logical(int cfg, int num, WORD io0, WORD io1, WORD irq, int mem)
{
        if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num))
                return -EIO;
        if (msnd_write_cfg_io0(cfg, num, io0))
                return -EIO;
        if (msnd_write_cfg_io1(cfg, num, io1))
                return -EIO;
        if (msnd_write_cfg_irq(cfg, num, irq))
                return -EIO;
        if (msnd_write_cfg_mem(cfg, num, mem))
                return -EIO;
        if (msnd_activate_logical(cfg, num))
                return -EIO;
        return 0;
}

typedef struct msnd_pinnacle_cfg_device {
        WORD io0, io1, irq;
        int mem;
} msnd_pinnacle_cfg_t[4];

static int __init msnd_pinnacle_cfg_devices(int cfg, int reset, msnd_pinnacle_cfg_t device)
{
        int i;

        /* Reset devices if told to */
        if (reset) {
                printk(KERN_INFO LOGNAME ": Resetting all devices\n");
                for (i = 0; i < 4; ++i)
                        if (msnd_write_cfg_logical(cfg, i, 0, 0, 0, 0))
                                return -EIO;
        }

        /* Configure specified devices */
        for (i = 0; i < 4; ++i) {

                switch (i) {
                case 0:         /* DSP */
                        if (!(device[i].io0 && device[i].irq && device[i].mem))
                                continue;
                        break;
                case 1:         /* MPU */
                        if (!(device[i].io0 && device[i].irq))
                                continue;
                        printk(KERN_INFO LOGNAME
                               ": Configuring MPU to I/O 0x%x IRQ %d\n",
                               device[i].io0, device[i].irq);
                        break;
                case 2:         /* IDE */
                        if (!(device[i].io0 && device[i].io1 && device[i].irq))
                                continue;
                        printk(KERN_INFO LOGNAME
                               ": Configuring IDE to I/O 0x%x, 0x%x IRQ %d\n",
                               device[i].io0, device[i].io1, device[i].irq);
                        break;
                case 3:         /* Joystick */
                        if (!(device[i].io0))
                                continue;
                        printk(KERN_INFO LOGNAME
                               ": Configuring joystick to I/O 0x%x\n",
                               device[i].io0);
                        break;
                }

                /* Configure the device */
                if (msnd_write_cfg_logical(cfg, i, device[i].io0, device[i].io1, device[i].irq, device[i].mem))
                        return -EIO;
        }

        return 0;
}
#endif

#ifdef MODULE
MODULE_AUTHOR                           ("Andrew Veliath <andrewtv@usa.net>");
MODULE_DESCRIPTION                      ("Turtle Beach " LONGNAME " Linux Driver");
MODULE_LICENSE("GPL");

static int io __initdata =              -1;
static int irq __initdata =             -1;
static int mem __initdata =             -1;
static int write_ndelay __initdata =    -1;

#ifndef MSND_CLASSIC
/* Pinnacle/Fiji non-PnP Config Port */
static int cfg __initdata =             -1;

/* Extra Peripheral Configuration */
static int reset __initdata = 0;
static int mpu_io __initdata = 0;
static int mpu_irq __initdata = 0;
static int ide_io0 __initdata = 0;
static int ide_io1 __initdata = 0;
static int ide_irq __initdata = 0;
static int joystick_io __initdata = 0;

/* If we have the digital daugherboard... */
static int digital __initdata = 0;
#endif

static int fifosize __initdata =        DEFFIFOSIZE;
static int calibrate_signal __initdata = 0;

#else /* not a module */

static int write_ndelay __initdata =    -1;

#ifdef MSND_CLASSIC
static int io __initdata =              CONFIG_MSNDCLAS_IO;
static int irq __initdata =             CONFIG_MSNDCLAS_IRQ;
static int mem __initdata =             CONFIG_MSNDCLAS_MEM;
#else /* Pinnacle/Fiji */

static int io __initdata =              CONFIG_MSNDPIN_IO;
static int irq __initdata =             CONFIG_MSNDPIN_IRQ;
static int mem __initdata =             CONFIG_MSNDPIN_MEM;

/* Pinnacle/Fiji non-PnP Config Port */
#ifdef CONFIG_MSNDPIN_NONPNP
#  ifndef CONFIG_MSNDPIN_CFG
#    define CONFIG_MSNDPIN_CFG          0x250
#  endif
#else
#  ifdef CONFIG_MSNDPIN_CFG
#    undef CONFIG_MSNDPIN_CFG
#  endif
#  define CONFIG_MSNDPIN_CFG            -1
#endif
static int cfg __initdata =             CONFIG_MSNDPIN_CFG;
/* If not a module, we don't need to bother with reset=1 */
static int reset;

/* Extra Peripheral Configuration (Default: Disable) */
#ifndef CONFIG_MSNDPIN_MPU_IO
#  define CONFIG_MSNDPIN_MPU_IO         0
#endif
static int mpu_io __initdata =          CONFIG_MSNDPIN_MPU_IO;

#ifndef CONFIG_MSNDPIN_MPU_IRQ
#  define CONFIG_MSNDPIN_MPU_IRQ        0
#endif
static int mpu_irq __initdata =         CONFIG_MSNDPIN_MPU_IRQ;

#ifndef CONFIG_MSNDPIN_IDE_IO0
#  define CONFIG_MSNDPIN_IDE_IO0        0
#endif
static int ide_io0 __initdata =         CONFIG_MSNDPIN_IDE_IO0;

#ifndef CONFIG_MSNDPIN_IDE_IO1
#  define CONFIG_MSNDPIN_IDE_IO1        0
#endif
static int ide_io1 __initdata =         CONFIG_MSNDPIN_IDE_IO1;

#ifndef CONFIG_MSNDPIN_IDE_IRQ
#  define CONFIG_MSNDPIN_IDE_IRQ        0
#endif
static int ide_irq __initdata =         CONFIG_MSNDPIN_IDE_IRQ;

#ifndef CONFIG_MSNDPIN_JOYSTICK_IO
#  define CONFIG_MSNDPIN_JOYSTICK_IO    0
#endif
static int joystick_io __initdata =     CONFIG_MSNDPIN_JOYSTICK_IO;

/* Have SPDIF (Digital) Daughterboard */
#ifndef CONFIG_MSNDPIN_DIGITAL
#  define CONFIG_MSNDPIN_DIGITAL        0
#endif
static int digital __initdata =         CONFIG_MSNDPIN_DIGITAL;

#endif /* MSND_CLASSIC */

#ifndef CONFIG_MSND_FIFOSIZE
#  define CONFIG_MSND_FIFOSIZE          DEFFIFOSIZE
#endif
static int fifosize __initdata =        CONFIG_MSND_FIFOSIZE;

#ifndef CONFIG_MSND_CALSIGNAL
#  define CONFIG_MSND_CALSIGNAL         0
#endif
static int
calibrate_signal __initdata =           CONFIG_MSND_CALSIGNAL;
#endif /* MODULE */

module_param                            (io, int, 0);
module_param                            (irq, int, 0);
module_param                            (mem, int, 0);
module_param                            (write_ndelay, int, 0);
module_param                            (fifosize, int, 0);
module_param                            (calibrate_signal, int, 0);
#ifndef MSND_CLASSIC
module_param                            (digital, bool, 0);
module_param                            (cfg, int, 0);
module_param                            (reset, int, 0);
module_param                            (mpu_io, int, 0);
module_param                            (mpu_irq, int, 0);
module_param                            (ide_io0, int, 0);
module_param                            (ide_io1, int, 0);
module_param                            (ide_irq, int, 0);
module_param                            (joystick_io, int, 0);
#endif

static int __init msnd_init(void)
{
        int err;
#ifndef MSND_CLASSIC
        static msnd_pinnacle_cfg_t pinnacle_devs;
#endif /* MSND_CLASSIC */

        printk(KERN_INFO LOGNAME ": Turtle Beach " LONGNAME " Linux Driver Version "
               VERSION ", Copyright (C) 1998 Andrew Veliath\n");

        if (io == -1 || irq == -1 || mem == -1)
                printk(KERN_WARNING LOGNAME ": io, irq and mem must be set\n");

#ifdef MSND_CLASSIC
        if (io == -1 ||
            !(io == 0x290 ||
              io == 0x260 ||
              io == 0x250 ||
              io == 0x240 ||
              io == 0x230 ||
              io == 0x220 ||
              io == 0x210 ||
              io == 0x3e0)) {
                printk(KERN_ERR LOGNAME ": \"io\" - DSP I/O base must be set to 0x210, 0x220, 0x230, 0x240, 0x250, 0x260, 0x290, or 0x3E0\n");
                return -EINVAL;
        }
#else
        if (io == -1 ||
                io < 0x100 ||
                io > 0x3e0 ||
                (io % 0x10) != 0) {
                        printk(KERN_ERR LOGNAME ": \"io\" - DSP I/O base must within the range 0x100 to 0x3E0 and must be evenly divisible by 0x10\n");
                        return -EINVAL;
        }
#endif /* MSND_CLASSIC */

        if (irq == -1 ||
            !(irq == 5 ||
              irq == 7 ||
              irq == 9 ||
              irq == 10 ||
              irq == 11 ||
              irq == 12)) {
                printk(KERN_ERR LOGNAME ": \"irq\" - must be set to 5, 7, 9, 10, 11 or 12\n");
                return -EINVAL;
        }

        if (mem == -1 ||
            !(mem == 0xb0000 ||
              mem == 0xc8000 ||
              mem == 0xd0000 ||
              mem == 0xd8000 ||
              mem == 0xe0000 ||
              mem == 0xe8000)) {
                printk(KERN_ERR LOGNAME ": \"mem\" - must be set to "
                       "0xb0000, 0xc8000, 0xd0000, 0xd8000, 0xe0000 or 0xe8000\n");
                return -EINVAL;
        }

#ifdef MSND_CLASSIC
        switch (irq) {
        case 5: dev.irqid = HPIRQ_5; break;
        case 7: dev.irqid = HPIRQ_7; break;
        case 9: dev.irqid = HPIRQ_9; break;
        case 10: dev.irqid = HPIRQ_10; break;
        case 11: dev.irqid = HPIRQ_11; break;
        case 12: dev.irqid = HPIRQ_12; break;
        }

        switch (mem) {
        case 0xb0000: dev.memid = HPMEM_B000; break;
        case 0xc8000: dev.memid = HPMEM_C800; break;
        case 0xd0000: dev.memid = HPMEM_D000; break;
        case 0xd8000: dev.memid = HPMEM_D800; break;
        case 0xe0000: dev.memid = HPMEM_E000; break;
        case 0xe8000: dev.memid = HPMEM_E800; break;
        }
#else
        if (cfg == -1) {
                printk(KERN_INFO LOGNAME ": Assuming PnP mode\n");
        } else if (cfg != 0x250 && cfg != 0x260 && cfg != 0x270) {
                printk(KERN_INFO LOGNAME ": Config port must be 0x250, 0x260 or 0x270 (or unspecified for PnP mode)\n");
                return -EINVAL;
        } else {
                printk(KERN_INFO LOGNAME ": Non-PnP mode: configuring at port 0x%x\n", cfg);

                /* DSP */
                pinnacle_devs[0].io0 = io;
                pinnacle_devs[0].irq = irq;
                pinnacle_devs[0].mem = mem;

                /* The following are Pinnacle specific */

                /* MPU */
                pinnacle_devs[1].io0 = mpu_io;
                pinnacle_devs[1].irq = mpu_irq;

                /* IDE */
                pinnacle_devs[2].io0 = ide_io0;
                pinnacle_devs[2].io1 = ide_io1;
                pinnacle_devs[2].irq = ide_irq;

                /* Joystick */
                pinnacle_devs[3].io0 = joystick_io;

                if (!request_region(cfg, 2, "Pinnacle/Fiji Config")) {
                        printk(KERN_ERR LOGNAME ": Config port 0x%x conflict\n", cfg);
                        return -EIO;
                }

                if (msnd_pinnacle_cfg_devices(cfg, reset, pinnacle_devs)) {
                        printk(KERN_ERR LOGNAME ": Device configuration error\n");
                        release_region(cfg, 2);
                        return -EIO;
                }
                release_region(cfg, 2);
        }
#endif /* MSND_CLASSIC */

        if (fifosize < 16)
                fifosize = 16;

        if (fifosize > 1024)
                fifosize = 1024;

        set_default_audio_parameters();
#ifdef MSND_CLASSIC
        dev.type = msndClassic;
#else
        dev.type = msndPinnacle;
#endif
        dev.io = io;
        dev.numio = DSP_NUMIO;
        dev.irq = irq;
        dev.base = ioremap(mem, 0x8000);
        dev.fifosize = fifosize * 1024;
        dev.calibrate_signal = calibrate_signal ? 1 : 0;
        dev.recsrc = 0;
        dev.dspq_data_buff = DSPQ_DATA_BUFF;
        dev.dspq_buff_size = DSPQ_BUFF_SIZE;
        if (write_ndelay == -1)
                write_ndelay = CONFIG_MSND_WRITE_NDELAY;
        if (write_ndelay)
                clear_bit(F_DISABLE_WRITE_NDELAY, &dev.flags);
        else
                set_bit(F_DISABLE_WRITE_NDELAY, &dev.flags);
#ifndef MSND_CLASSIC
        if (digital)
                set_bit(F_HAVEDIGITAL, &dev.flags);
#endif
        init_waitqueue_head(&dev.writeblock);
        init_waitqueue_head(&dev.readblock);
        init_waitqueue_head(&dev.writeflush);
        msnd_fifo_init(&dev.DAPF);
        msnd_fifo_init(&dev.DARF);
        spin_lock_init(&dev.lock);
        printk(KERN_INFO LOGNAME ": %u byte audio FIFOs (x2)\n", dev.fifosize);
        if ((err = msnd_fifo_alloc(&dev.DAPF, dev.fifosize)) < 0) {
                printk(KERN_ERR LOGNAME ": Couldn't allocate write FIFO\n");
                return err;
        }

        if ((err = msnd_fifo_alloc(&dev.DARF, dev.fifosize)) < 0) {
                printk(KERN_ERR LOGNAME ": Couldn't allocate read FIFO\n");
                msnd_fifo_free(&dev.DAPF);
                return err;
        }

        if ((err = probe_multisound()) < 0) {
                printk(KERN_ERR LOGNAME ": Probe failed\n");
                msnd_fifo_free(&dev.DAPF);
                msnd_fifo_free(&dev.DARF);
                return err;
        }

        if ((err = attach_multisound()) < 0) {
                printk(KERN_ERR LOGNAME ": Attach failed\n");
                msnd_fifo_free(&dev.DAPF);
                msnd_fifo_free(&dev.DARF);
                return err;
        }

        return 0;
}

static void __exit msdn_cleanup(void)
{
        unload_multisound();
        msnd_fifo_free(&dev.DAPF);
        msnd_fifo_free(&dev.DARF);
}

module_init(msnd_init);
module_exit(msdn_cleanup);

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