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root/sound/isa/opti9xx/miro.c

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DEFINITIONS

This source file includes following definitions.
  1. aci_busy_wait
  2. aci_write
  3. aci_read
  4. aci_cmd
  5. aci_getvalue
  6. aci_setvalue
  7. snd_miro_get_capture
  8. snd_miro_put_capture
  9. snd_miro_info_preamp
  10. snd_miro_get_preamp
  11. snd_miro_put_preamp
  12. snd_miro_get_amp
  13. snd_miro_put_amp
  14. snd_miro_info_double
  15. snd_miro_get_double
  16. snd_miro_put_double
  17. snd_set_aci_init_values
  18. snd_miro_mixer
  19. snd_legacy_find_free_ioport
  20. snd_miro_init
  21. snd_miro_read
  22. snd_miro_write
  23. snd_miro_proc_read
  24. snd_miro_proc_init
  25. snd_miro_configure
  26. snd_card_miro_detect
  27. snd_card_miro_aci_detect
  28. snd_card_miro_free
  29. snd_miro_match
  30. snd_miro_probe
  31. snd_miro_remove
  32. alsa_card_miro_init
  33. alsa_card_miro_exit

/*
 *   ALSA soundcard driver for Miro miroSOUND PCM1 pro
 *                                  miroSOUND PCM12
 *                                  miroSOUND PCM20 Radio
 *
 *   Copyright (C) 2004-2005 Martin Langer <martin-langer@gmx.de>
 *
 *   Based on OSS ACI and ALSA OPTi9xx drivers
 *
 *   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

#include <linux/init.h>
#include <linux/err.h>
#include <linux/isa.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/ioport.h>
#include <linux/moduleparam.h>
#include <asm/io.h>
#include <asm/dma.h>
#include <sound/core.h>
#include <sound/wss.h>
#include <sound/mpu401.h>
#include <sound/opl4.h>
#include <sound/control.h>
#include <sound/info.h>
#define SNDRV_LEGACY_FIND_FREE_IRQ
#define SNDRV_LEGACY_FIND_FREE_DMA
#include <sound/initval.h>
#include "miro.h"

MODULE_AUTHOR("Martin Langer <martin-langer@gmx.de>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Miro miroSOUND PCM1 pro, PCM12, PCM20 Radio");
MODULE_SUPPORTED_DEVICE("{{Miro,miroSOUND PCM1 pro}, "
                        "{Miro,miroSOUND PCM12}, "
                        "{Miro,miroSOUND PCM20 Radio}}");

static int index = SNDRV_DEFAULT_IDX1;          /* Index 0-MAX */
static char *id = SNDRV_DEFAULT_STR1;           /* ID for this card */
static long port = SNDRV_DEFAULT_PORT1;         /* 0x530,0xe80,0xf40,0x604 */
static long mpu_port = SNDRV_DEFAULT_PORT1;     /* 0x300,0x310,0x320,0x330 */
static long fm_port = SNDRV_DEFAULT_PORT1;      /* 0x388 */
static int irq = SNDRV_DEFAULT_IRQ1;            /* 5,7,9,10,11 */
static int mpu_irq = SNDRV_DEFAULT_IRQ1;        /* 5,7,9,10 */
static int dma1 = SNDRV_DEFAULT_DMA1;           /* 0,1,3 */
static int dma2 = SNDRV_DEFAULT_DMA1;           /* 0,1,3 */
static int wss;
static int ide;

module_param(index, int, 0444);
MODULE_PARM_DESC(index, "Index value for miro soundcard.");
module_param(id, charp, 0444);
MODULE_PARM_DESC(id, "ID string for miro soundcard.");
module_param(port, long, 0444);
MODULE_PARM_DESC(port, "WSS port # for miro driver.");
module_param(mpu_port, long, 0444);
MODULE_PARM_DESC(mpu_port, "MPU-401 port # for miro driver.");
module_param(fm_port, long, 0444);
MODULE_PARM_DESC(fm_port, "FM Port # for miro driver.");
module_param(irq, int, 0444);
MODULE_PARM_DESC(irq, "WSS irq # for miro driver.");
module_param(mpu_irq, int, 0444);
MODULE_PARM_DESC(mpu_irq, "MPU-401 irq # for miro driver.");
module_param(dma1, int, 0444);
MODULE_PARM_DESC(dma1, "1st dma # for miro driver.");
module_param(dma2, int, 0444);
MODULE_PARM_DESC(dma2, "2nd dma # for miro driver.");
module_param(wss, int, 0444);
MODULE_PARM_DESC(wss, "wss mode");
module_param(ide, int, 0444);
MODULE_PARM_DESC(ide, "enable ide port");

#define OPTi9XX_HW_DETECT       0
#define OPTi9XX_HW_82C928       1
#define OPTi9XX_HW_82C929       2
#define OPTi9XX_HW_82C924       3
#define OPTi9XX_HW_82C925       4
#define OPTi9XX_HW_82C930       5
#define OPTi9XX_HW_82C931       6
#define OPTi9XX_HW_82C933       7
#define OPTi9XX_HW_LAST         OPTi9XX_HW_82C933

#define OPTi9XX_MC_REG(n)       n


struct snd_miro {
        unsigned short hardware;
        unsigned char password;
        char name[7];

        struct resource *res_mc_base;
        struct resource *res_aci_port;

        unsigned long mc_base;
        unsigned long mc_base_size;
        unsigned long pwd_reg;

        spinlock_t lock;
        struct snd_card *card;
        struct snd_pcm *pcm;

        long wss_base;
        int irq;
        int dma1;
        int dma2;

        long fm_port;

        long mpu_port;
        int mpu_irq;

        unsigned long aci_port;
        int aci_vendor;
        int aci_product;
        int aci_version;
        int aci_amp;
        int aci_preamp;
        int aci_solomode;

        struct mutex aci_mutex;
};

static void snd_miro_proc_init(struct snd_miro * miro);

static char * snd_opti9xx_names[] = {
        "unkown",
        "82C928", "82C929",
        "82C924", "82C925",
        "82C930", "82C931", "82C933"
};

/* 
 *  ACI control
 */

static int aci_busy_wait(struct snd_miro * miro)
{
        long timeout;
        unsigned char byte;

        for (timeout = 1; timeout <= ACI_MINTIME+30; timeout++) {
                if (((byte=inb(miro->aci_port + ACI_REG_BUSY)) & 1) == 0) {
                        if (timeout >= ACI_MINTIME)
                                snd_printd("aci ready in round %ld.\n",
                                           timeout-ACI_MINTIME);
                        return byte;
                }
                if (timeout >= ACI_MINTIME) {
                        long out=10*HZ;
                        switch (timeout-ACI_MINTIME) {
                        case 0 ... 9:
                                out /= 10;
                        case 10 ... 19:
                                out /= 10;
                        case 20 ... 30:
                                out /= 10;
                        default:
                                set_current_state(TASK_UNINTERRUPTIBLE);
                                schedule_timeout(out);
                                break;
                        }
                }
        }
        snd_printk(KERN_ERR "aci_busy_wait() time out\n");
        return -EBUSY;
}

static inline int aci_write(struct snd_miro * miro, unsigned char byte)
{
        if (aci_busy_wait(miro) >= 0) {
                outb(byte, miro->aci_port + ACI_REG_COMMAND);
                return 0;
        } else {
                snd_printk(KERN_ERR "aci busy, aci_write(0x%x) stopped.\n", byte);
                return -EBUSY;
        }
}

static inline int aci_read(struct snd_miro * miro)
{
        unsigned char byte;

        if (aci_busy_wait(miro) >= 0) {
                byte=inb(miro->aci_port + ACI_REG_STATUS);
                return byte;
        } else {
                snd_printk(KERN_ERR "aci busy, aci_read() stopped.\n");
                return -EBUSY;
        }
}

static int aci_cmd(struct snd_miro * miro, int write1, int write2, int write3)
{
        int write[] = {write1, write2, write3};
        int value, i;

        if (mutex_lock_interruptible(&miro->aci_mutex))
                return -EINTR;

        for (i=0; i<3; i++) {
                if (write[i]< 0 || write[i] > 255)
                        break;
                else {
                        value = aci_write(miro, write[i]);
                        if (value < 0)
                                goto out;
                }
        }

        value = aci_read(miro);

out:    mutex_unlock(&miro->aci_mutex);
        return value;
}

static int aci_getvalue(struct snd_miro * miro, unsigned char index)
{
        return aci_cmd(miro, ACI_STATUS, index, -1);
}

static int aci_setvalue(struct snd_miro * miro, unsigned char index, int value)
{
        return aci_cmd(miro, index, value, -1);
}

/*
 *  MIXER part
 */

#define snd_miro_info_capture   snd_ctl_boolean_mono_info

static int snd_miro_get_capture(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
{
        struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
        int value;

        if ((value = aci_getvalue(miro, ACI_S_GENERAL)) < 0) {
                snd_printk(KERN_ERR "snd_miro_get_capture() failed: %d\n", value);
                return value;
        }

        ucontrol->value.integer.value[0] = value & 0x20;

        return 0;
}

static int snd_miro_put_capture(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
{
        struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
        int change, value, error;

        value = !(ucontrol->value.integer.value[0]);

        if ((error = aci_setvalue(miro, ACI_SET_SOLOMODE, value)) < 0) {
                snd_printk(KERN_ERR "snd_miro_put_capture() failed: %d\n", error);
                return error;
        }

        change = (value != miro->aci_solomode);
        miro->aci_solomode = value;
        
        return change;
}

static int snd_miro_info_preamp(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_info *uinfo)
{
        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
        uinfo->count = 1;
        uinfo->value.integer.min = 0;
        uinfo->value.integer.max = 3;

        return 0;
}

static int snd_miro_get_preamp(struct snd_kcontrol *kcontrol,
                               struct snd_ctl_elem_value *ucontrol)
{
        struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
        int value;

        if (miro->aci_version <= 176) {

                /* 
                   OSS says it's not readable with versions < 176.
                   But it doesn't work on my card,
                   which is a PCM12 with aci_version = 176.
                */

                ucontrol->value.integer.value[0] = miro->aci_preamp;
                return 0;
        }

        if ((value = aci_getvalue(miro, ACI_GET_PREAMP)) < 0) {
                snd_printk(KERN_ERR "snd_miro_get_preamp() failed: %d\n", value);
                return value;
        }
        
        ucontrol->value.integer.value[0] = value;

        return 0;
}

static int snd_miro_put_preamp(struct snd_kcontrol *kcontrol,
                               struct snd_ctl_elem_value *ucontrol)
{
        struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
        int error, value, change;

        value = ucontrol->value.integer.value[0];

        if ((error = aci_setvalue(miro, ACI_SET_PREAMP, value)) < 0) {
                snd_printk(KERN_ERR "snd_miro_put_preamp() failed: %d\n", error);
                return error;
        }

        change = (value != miro->aci_preamp);
        miro->aci_preamp = value;

        return change;
}

#define snd_miro_info_amp       snd_ctl_boolean_mono_info

static int snd_miro_get_amp(struct snd_kcontrol *kcontrol,
                            struct snd_ctl_elem_value *ucontrol)
{
        struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
        ucontrol->value.integer.value[0] = miro->aci_amp;

        return 0;
}

static int snd_miro_put_amp(struct snd_kcontrol *kcontrol,
                            struct snd_ctl_elem_value *ucontrol)
{
        struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
        int error, value, change;

        value = ucontrol->value.integer.value[0];

        if ((error = aci_setvalue(miro, ACI_SET_POWERAMP, value)) < 0) {
                snd_printk(KERN_ERR "snd_miro_put_amp() to %d failed: %d\n", value, error);
                return error;
        }

        change = (value != miro->aci_amp);
        miro->aci_amp = value;

        return change;
}

#define MIRO_DOUBLE(ctl_name, ctl_index, get_right_reg, set_right_reg) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
  .name = ctl_name, \
  .index = ctl_index, \
  .info = snd_miro_info_double, \
  .get = snd_miro_get_double, \
  .put = snd_miro_put_double, \
  .private_value = get_right_reg | (set_right_reg << 8) \
}

static int snd_miro_info_double(struct snd_kcontrol *kcontrol, 
                                struct snd_ctl_elem_info *uinfo)
{
        int reg = kcontrol->private_value & 0xff;

        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
        uinfo->count = 2;

        if ((reg >= ACI_GET_EQ1) && (reg <= ACI_GET_EQ7)) {

                /* equalizer elements */

                uinfo->value.integer.min = - 0x7f;
                uinfo->value.integer.max = 0x7f;
        } else {

                /* non-equalizer elements */

                uinfo->value.integer.min = 0;
                uinfo->value.integer.max = 0x20;
        }

        return 0;
}

static int snd_miro_get_double(struct snd_kcontrol *kcontrol, 
                               struct snd_ctl_elem_value *uinfo)
{
        struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
        int left_val, right_val;

        int right_reg = kcontrol->private_value & 0xff;
        int left_reg = right_reg + 1;

        if ((right_val = aci_getvalue(miro, right_reg)) < 0) {
                snd_printk(KERN_ERR "aci_getvalue(%d) failed: %d\n", right_reg, right_val);
                return right_val;
        }

        if ((left_val = aci_getvalue(miro, left_reg)) < 0) {
                snd_printk(KERN_ERR "aci_getvalue(%d) failed: %d\n", left_reg, left_val);
                return left_val;
        }

        if ((right_reg >= ACI_GET_EQ1) && (right_reg <= ACI_GET_EQ7)) {

                /* equalizer elements */

                if (left_val < 0x80) {
                        uinfo->value.integer.value[0] = left_val;
                } else {
                        uinfo->value.integer.value[0] = 0x80 - left_val;
                }

                if (right_val < 0x80) {
                        uinfo->value.integer.value[1] = right_val;
                } else {
                        uinfo->value.integer.value[1] = 0x80 - right_val;
                }

        } else {

                /* non-equalizer elements */

                uinfo->value.integer.value[0] = 0x20 - left_val;
                uinfo->value.integer.value[1] = 0x20 - right_val;
        }

        return 0;
}

static int snd_miro_put_double(struct snd_kcontrol *kcontrol, 
                               struct snd_ctl_elem_value *ucontrol)
{
        struct snd_miro *miro = snd_kcontrol_chip(kcontrol);
        int left, right, left_old, right_old;
        int setreg_left, setreg_right, getreg_left, getreg_right;
        int change, error;

        left = ucontrol->value.integer.value[0];
        right = ucontrol->value.integer.value[1];

        setreg_right = (kcontrol->private_value >> 8) & 0xff;
        if (setreg_right == ACI_SET_MASTER) {
                setreg_left = setreg_right + 1;
        } else {
                setreg_left = setreg_right + 8;
        }

        getreg_right = kcontrol->private_value & 0xff;
        getreg_left = getreg_right + 1;

        if ((left_old = aci_getvalue(miro, getreg_left)) < 0) {
                snd_printk(KERN_ERR "aci_getvalue(%d) failed: %d\n", getreg_left, left_old);
                return left_old;
        }

        if ((right_old = aci_getvalue(miro, getreg_right)) < 0) {
                snd_printk(KERN_ERR "aci_getvalue(%d) failed: %d\n", getreg_right, right_old);
                return right_old;
        }

        if ((getreg_right >= ACI_GET_EQ1) && (getreg_right <= ACI_GET_EQ7)) {

                /* equalizer elements */

                if (left < -0x7f || left > 0x7f ||
                    right < -0x7f || right > 0x7f)
                        return -EINVAL;

                if (left_old > 0x80) 
                        left_old = 0x80 - left_old;
                if (right_old > 0x80) 
                        right_old = 0x80 - right_old;

                if (left >= 0) {
                        if ((error = aci_setvalue(miro, setreg_left, left)) < 0) {
                                snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
                                           left, error);
                                return error;
                        }
                } else {
                        if ((error = aci_setvalue(miro, setreg_left, 0x80 - left)) < 0) {
                                snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
                                           0x80 - left, error);
                                return error;
                        }
                }

                if (right >= 0) {
                        if ((error = aci_setvalue(miro, setreg_right, right)) < 0) {
                                snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
                                           right, error);
                                return error;
                        }
                } else {
                        if ((error = aci_setvalue(miro, setreg_right, 0x80 - right)) < 0) {
                                snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
                                           0x80 - right, error);
                                return error;
                        }
                }

        } else {

                /* non-equalizer elements */

                if (left < 0 || left > 0x20 ||
                    right < 0 || right > 0x20)
                        return -EINVAL;

                left_old = 0x20 - left_old;
                right_old = 0x20 - right_old;

                if ((error = aci_setvalue(miro, setreg_left, 0x20 - left)) < 0) {
                        snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
                                   0x20 - left, error);
                        return error;
                }
                if ((error = aci_setvalue(miro, setreg_right, 0x20 - right)) < 0) {
                        snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n",
                                   0x20 - right, error);
                        return error;
                }
        }

        change = (left != left_old) || (right != right_old);

        return change;
}

static struct snd_kcontrol_new snd_miro_controls[] __devinitdata = {
MIRO_DOUBLE("Master Playback Volume", 0, ACI_GET_MASTER, ACI_SET_MASTER),
MIRO_DOUBLE("Mic Playback Volume", 1, ACI_GET_MIC, ACI_SET_MIC),
MIRO_DOUBLE("Line Playback Volume", 1, ACI_GET_LINE, ACI_SET_LINE),
MIRO_DOUBLE("CD Playback Volume", 0, ACI_GET_CD, ACI_SET_CD),
MIRO_DOUBLE("Synth Playback Volume", 0, ACI_GET_SYNTH, ACI_SET_SYNTH),
MIRO_DOUBLE("PCM Playback Volume", 1, ACI_GET_PCM, ACI_SET_PCM),
MIRO_DOUBLE("Aux Playback Volume", 2, ACI_GET_LINE2, ACI_SET_LINE2),
};

/* Equalizer with seven bands (only PCM20) 
   from -12dB up to +12dB on each band */
static struct snd_kcontrol_new snd_miro_eq_controls[] __devinitdata = {
MIRO_DOUBLE("Tone Control - 28 Hz", 0, ACI_GET_EQ1, ACI_SET_EQ1),
MIRO_DOUBLE("Tone Control - 160 Hz", 0, ACI_GET_EQ2, ACI_SET_EQ2),
MIRO_DOUBLE("Tone Control - 400 Hz", 0, ACI_GET_EQ3, ACI_SET_EQ3),
MIRO_DOUBLE("Tone Control - 1 kHz", 0, ACI_GET_EQ4, ACI_SET_EQ4),
MIRO_DOUBLE("Tone Control - 2.5 kHz", 0, ACI_GET_EQ5, ACI_SET_EQ5),
MIRO_DOUBLE("Tone Control - 6.3 kHz", 0, ACI_GET_EQ6, ACI_SET_EQ6),
MIRO_DOUBLE("Tone Control - 16 kHz", 0, ACI_GET_EQ7, ACI_SET_EQ7),
};

static struct snd_kcontrol_new snd_miro_radio_control[] __devinitdata = {
MIRO_DOUBLE("Radio Playback Volume", 0, ACI_GET_LINE1, ACI_SET_LINE1),
};

static struct snd_kcontrol_new snd_miro_line_control[] __devinitdata = {
MIRO_DOUBLE("Line Playback Volume", 2, ACI_GET_LINE1, ACI_SET_LINE1),
};

static struct snd_kcontrol_new snd_miro_preamp_control[] __devinitdata = {
{
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "Mic Boost",
        .index = 1,
        .info = snd_miro_info_preamp,
        .get = snd_miro_get_preamp,
        .put = snd_miro_put_preamp,
}};

static struct snd_kcontrol_new snd_miro_amp_control[] __devinitdata = {
{
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "Line Boost",
        .index = 0,
        .info = snd_miro_info_amp,
        .get = snd_miro_get_amp,
        .put = snd_miro_put_amp,
}};

static struct snd_kcontrol_new snd_miro_capture_control[] __devinitdata = {
{
        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
        .name = "PCM Capture Switch",
        .index = 0,
        .info = snd_miro_info_capture,
        .get = snd_miro_get_capture,
        .put = snd_miro_put_capture,
}};

static unsigned char aci_init_values[][2] __devinitdata = {
        { ACI_SET_MUTE, 0x00 },
        { ACI_SET_POWERAMP, 0x00 },
        { ACI_SET_PREAMP, 0x00 },
        { ACI_SET_SOLOMODE, 0x00 },
        { ACI_SET_MIC + 0, 0x20 },
        { ACI_SET_MIC + 8, 0x20 },
        { ACI_SET_LINE + 0, 0x20 },
        { ACI_SET_LINE + 8, 0x20 },
        { ACI_SET_CD + 0, 0x20 },
        { ACI_SET_CD + 8, 0x20 },
        { ACI_SET_PCM + 0, 0x20 },
        { ACI_SET_PCM + 8, 0x20 },
        { ACI_SET_LINE1 + 0, 0x20 },
        { ACI_SET_LINE1 + 8, 0x20 },
        { ACI_SET_LINE2 + 0, 0x20 },
        { ACI_SET_LINE2 + 8, 0x20 },
        { ACI_SET_SYNTH + 0, 0x20 },
        { ACI_SET_SYNTH + 8, 0x20 },
        { ACI_SET_MASTER + 0, 0x20 },
        { ACI_SET_MASTER + 1, 0x20 },
};

static int __devinit snd_set_aci_init_values(struct snd_miro *miro)
{
        int idx, error;

        /* enable WSS on PCM1 */

        if ((miro->aci_product == 'A') && wss) {
                if ((error = aci_setvalue(miro, ACI_SET_WSS, wss)) < 0) {
                        snd_printk(KERN_ERR "enabling WSS mode failed\n");
                        return error;
                }
        }

        /* enable IDE port */

        if (ide) {
                if ((error = aci_setvalue(miro, ACI_SET_IDE, ide)) < 0) {
                        snd_printk(KERN_ERR "enabling IDE port failed\n");
                        return error;
                }
        }

        /* set common aci values */

        for (idx = 0; idx < ARRAY_SIZE(aci_init_values); idx++)
                if ((error = aci_setvalue(miro, aci_init_values[idx][0], 
                                          aci_init_values[idx][1])) < 0) {
                        snd_printk(KERN_ERR "aci_setvalue(%d) failed: %d\n", 
                                   aci_init_values[idx][0], error);
                        return error;
                }

        miro->aci_amp = 0;
        miro->aci_preamp = 0;
        miro->aci_solomode = 1;

        return 0;
}

static int __devinit snd_miro_mixer(struct snd_miro *miro)
{
        struct snd_card *card;
        unsigned int idx;
        int err;

        if (snd_BUG_ON(!miro || !miro->card))
                return -EINVAL;

        card = miro->card;

        switch (miro->hardware) {
        case OPTi9XX_HW_82C924:
                strcpy(card->mixername, "ACI & OPTi924");
                break;
        case OPTi9XX_HW_82C929:
                strcpy(card->mixername, "ACI & OPTi929");
                break;
        default:
                snd_BUG();
                break;
        }

        for (idx = 0; idx < ARRAY_SIZE(snd_miro_controls); idx++) {
                if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_controls[idx], miro))) < 0)
                        return err;
        }

        if ((miro->aci_product == 'A') || (miro->aci_product == 'B')) {
                /* PCM1/PCM12 with power-amp and Line 2 */
                if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_line_control[0], miro))) < 0)
                        return err;
                if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_amp_control[0], miro))) < 0)
                        return err;
        }

        if ((miro->aci_product == 'B') || (miro->aci_product == 'C')) {
                /* PCM12/PCM20 with mic-preamp */
                if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_preamp_control[0], miro))) < 0)
                        return err;
                if (miro->aci_version >= 176)
                        if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_capture_control[0], miro))) < 0)
                                return err;
        }

        if (miro->aci_product == 'C') {
                /* PCM20 with radio and 7 band equalizer */
                if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_radio_control[0], miro))) < 0)
                        return err;
                for (idx = 0; idx < ARRAY_SIZE(snd_miro_eq_controls); idx++) {
                        if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_miro_eq_controls[idx], miro))) < 0)
                                return err;
                }
        }

        return 0;
}

static long snd_legacy_find_free_ioport(long *port_table, long size)
{
        while (*port_table != -1) {
                struct resource *res;
                if ((res = request_region(*port_table, size, 
                                          "ALSA test")) != NULL) {
                        release_and_free_resource(res);
                        return *port_table;
                }
                port_table++;
        }
        return -1;
}

static int __devinit snd_miro_init(struct snd_miro *chip,
                                   unsigned short hardware)
{
        static int opti9xx_mc_size[] = {7, 7, 10, 10, 2, 2, 2};

        chip->hardware = hardware;
        strcpy(chip->name, snd_opti9xx_names[hardware]);

        chip->mc_base_size = opti9xx_mc_size[hardware];  

        spin_lock_init(&chip->lock);

        chip->wss_base = -1;
        chip->irq = -1;
        chip->dma1 = -1;
        chip->dma2 = -1;
        chip->fm_port = -1;
        chip->mpu_port = -1;
        chip->mpu_irq = -1;

        switch (hardware) {
        case OPTi9XX_HW_82C929:
                chip->mc_base = 0xf8c;
                chip->password = 0xe3;
                chip->pwd_reg = 3;
                break;

        case OPTi9XX_HW_82C924:
                chip->mc_base = 0xf8c;
                chip->password = 0xe5;
                chip->pwd_reg = 3;
                break;

        default:
                snd_printk(KERN_ERR "sorry, no support for %d\n", hardware);
                return -ENODEV;
        }

        return 0;
}

static unsigned char snd_miro_read(struct snd_miro *chip,
                                   unsigned char reg)
{
        unsigned long flags;
        unsigned char retval = 0xff;

        spin_lock_irqsave(&chip->lock, flags);
        outb(chip->password, chip->mc_base + chip->pwd_reg);

        switch (chip->hardware) {
        case OPTi9XX_HW_82C924:
                if (reg > 7) {
                        outb(reg, chip->mc_base + 8);
                        outb(chip->password, chip->mc_base + chip->pwd_reg);
                        retval = inb(chip->mc_base + 9);
                        break;
                }

        case OPTi9XX_HW_82C929:
                retval = inb(chip->mc_base + reg);
                break;

        default:
                snd_printk(KERN_ERR "sorry, no support for %d\n", chip->hardware);
        }

        spin_unlock_irqrestore(&chip->lock, flags);
        return retval;
}

static void snd_miro_write(struct snd_miro *chip, unsigned char reg,
                           unsigned char value)
{
        unsigned long flags;

        spin_lock_irqsave(&chip->lock, flags);
        outb(chip->password, chip->mc_base + chip->pwd_reg);

        switch (chip->hardware) {
        case OPTi9XX_HW_82C924:
                if (reg > 7) {
                        outb(reg, chip->mc_base + 8);
                        outb(chip->password, chip->mc_base + chip->pwd_reg);
                        outb(value, chip->mc_base + 9);
                        break;
                }

        case OPTi9XX_HW_82C929:
                outb(value, chip->mc_base + reg);
                break;

        default:
                snd_printk(KERN_ERR "sorry, no support for %d\n", chip->hardware);
        }

        spin_unlock_irqrestore(&chip->lock, flags);
}


#define snd_miro_write_mask(chip, reg, value, mask)     \
        snd_miro_write(chip, reg,                       \
                (snd_miro_read(chip, reg) & ~(mask)) | ((value) & (mask)))

/*
 *  Proc Interface
 */

static void snd_miro_proc_read(struct snd_info_entry * entry, 
                               struct snd_info_buffer *buffer)
{
        struct snd_miro *miro = (struct snd_miro *) entry->private_data;
        char* model = "unknown";

        /* miroSOUND PCM1 pro, early PCM12 */

        if ((miro->hardware == OPTi9XX_HW_82C929) &&
            (miro->aci_vendor == 'm') && 
            (miro->aci_product == 'A')) {
                switch(miro->aci_version) {
                case 3:
                        model = "miroSOUND PCM1 pro";
                        break;
                default:
                        model = "miroSOUND PCM1 pro / (early) PCM12";
                        break;
                }
        }

        /* miroSOUND PCM12, PCM12 (Rev. E), PCM12 pnp */

        if ((miro->hardware == OPTi9XX_HW_82C924) &&
            (miro->aci_vendor == 'm') && 
            (miro->aci_product == 'B')) {
                switch(miro->aci_version) {
                case 4:
                        model = "miroSOUND PCM12";
                        break;
                case 176:
                        model = "miroSOUND PCM12 (Rev. E)";
                        break;
                default:
                        model = "miroSOUND PCM12 / PCM12 pnp";
                        break;
                }
        }

        /* miroSOUND PCM20 radio */

        if ((miro->hardware == OPTi9XX_HW_82C924) &&
            (miro->aci_vendor == 'm') && 
            (miro->aci_product == 'C')) {
                switch(miro->aci_version) {
                case 7:
                        model = "miroSOUND PCM20 radio (Rev. E)";
                        break;
                default:
                        model = "miroSOUND PCM20 radio";
                        break;
                }
        }

        snd_iprintf(buffer, "\nGeneral information:\n");
        snd_iprintf(buffer, "  model   : %s\n", model);
        snd_iprintf(buffer, "  opti    : %s\n", miro->name);
        snd_iprintf(buffer, "  codec   : %s\n", miro->pcm->name);
        snd_iprintf(buffer, "  port    : 0x%lx\n", miro->wss_base);
        snd_iprintf(buffer, "  irq     : %d\n", miro->irq);
        snd_iprintf(buffer, "  dma     : %d,%d\n\n", miro->dma1, miro->dma2);

        snd_iprintf(buffer, "MPU-401:\n");
        snd_iprintf(buffer, "  port    : 0x%lx\n", miro->mpu_port);
        snd_iprintf(buffer, "  irq     : %d\n\n", miro->mpu_irq);

        snd_iprintf(buffer, "ACI information:\n");
        snd_iprintf(buffer, "  vendor  : ");
        switch(miro->aci_vendor) {
        case 'm':
                snd_iprintf(buffer, "Miro\n");
                break;
        default:
                snd_iprintf(buffer, "unknown (0x%x)\n", miro->aci_vendor);
                break;
        }

        snd_iprintf(buffer, "  product : ");
        switch(miro->aci_product) {
        case 'A':
                snd_iprintf(buffer, "miroSOUND PCM1 pro / (early) PCM12\n");
                break;
        case 'B':
                snd_iprintf(buffer, "miroSOUND PCM12\n");
                break;
        case 'C':
                snd_iprintf(buffer, "miroSOUND PCM20 radio\n");
                break;
        default:
                snd_iprintf(buffer, "unknown (0x%x)\n", miro->aci_product);
                break;
        }

        snd_iprintf(buffer, "  firmware: %d (0x%x)\n",
                    miro->aci_version, miro->aci_version);
        snd_iprintf(buffer, "  port    : 0x%lx-0x%lx\n", 
                    miro->aci_port, miro->aci_port+2);
        snd_iprintf(buffer, "  wss     : 0x%x\n", wss);
        snd_iprintf(buffer, "  ide     : 0x%x\n", ide);
        snd_iprintf(buffer, "  solomode: 0x%x\n", miro->aci_solomode);
        snd_iprintf(buffer, "  amp     : 0x%x\n", miro->aci_amp);
        snd_iprintf(buffer, "  preamp  : 0x%x\n", miro->aci_preamp);
}

static void __devinit snd_miro_proc_init(struct snd_miro * miro)
{
        struct snd_info_entry *entry;

        if (! snd_card_proc_new(miro->card, "miro", &entry))
                snd_info_set_text_ops(entry, miro, snd_miro_proc_read);
}

/*
 *  Init
 */

static int __devinit snd_miro_configure(struct snd_miro *chip)
{
        unsigned char wss_base_bits;
        unsigned char irq_bits;
        unsigned char dma_bits;
        unsigned char mpu_port_bits = 0;
        unsigned char mpu_irq_bits;
        unsigned long flags;

        switch (chip->hardware) {
        case OPTi9XX_HW_82C924:
                snd_miro_write_mask(chip, OPTi9XX_MC_REG(6), 0x02, 0x02);
                snd_miro_write_mask(chip, OPTi9XX_MC_REG(1), 0x80, 0x80);
                snd_miro_write_mask(chip, OPTi9XX_MC_REG(2), 0x20, 0x20); /* OPL4 */
                snd_miro_write_mask(chip, OPTi9XX_MC_REG(3), 0xf0, 0xff);
                snd_miro_write_mask(chip, OPTi9XX_MC_REG(5), 0x02, 0x02);
                break;
        case OPTi9XX_HW_82C929:
                /* untested init commands for OPTi929 */
                snd_miro_write_mask(chip, OPTi9XX_MC_REG(1), 0x80, 0x80);
                snd_miro_write_mask(chip, OPTi9XX_MC_REG(2), 0x20, 0x20); /* OPL4 */
                snd_miro_write_mask(chip, OPTi9XX_MC_REG(4), 0x00, 0x0c);
                snd_miro_write_mask(chip, OPTi9XX_MC_REG(5), 0x02, 0x02);
                break;
        default:
                snd_printk(KERN_ERR "chip %d not supported\n", chip->hardware);
                return -EINVAL;
        }

        switch (chip->wss_base) {
        case 0x530:
                wss_base_bits = 0x00;
                break;
        case 0x604:
                wss_base_bits = 0x03;
                break;
        case 0xe80:
                wss_base_bits = 0x01;
                break;
        case 0xf40:
                wss_base_bits = 0x02;
                break;
        default:
                snd_printk(KERN_ERR "WSS port 0x%lx not valid\n", chip->wss_base);
                goto __skip_base;
        }
        snd_miro_write_mask(chip, OPTi9XX_MC_REG(1), wss_base_bits << 4, 0x30);

__skip_base:
        switch (chip->irq) {
        case 5:
                irq_bits = 0x05;
                break;
        case 7:
                irq_bits = 0x01;
                break;
        case 9:
                irq_bits = 0x02;
                break;
        case 10:
                irq_bits = 0x03;
                break;
        case 11:
                irq_bits = 0x04;
                break;
        default:
                snd_printk(KERN_ERR "WSS irq # %d not valid\n", chip->irq);
                goto __skip_resources;
        }

        switch (chip->dma1) {
        case 0:
                dma_bits = 0x01;
                break;
        case 1:
                dma_bits = 0x02;
                break;
        case 3:
                dma_bits = 0x03;
                break;
        default:
                snd_printk(KERN_ERR "WSS dma1 # %d not valid\n", chip->dma1);
                goto __skip_resources;
        }

        if (chip->dma1 == chip->dma2) {
                snd_printk(KERN_ERR "don't want to share dmas\n");
                return -EBUSY;
        }

        switch (chip->dma2) {
        case 0:
        case 1:
                break;
        default:
                snd_printk(KERN_ERR "WSS dma2 # %d not valid\n", chip->dma2);
                goto __skip_resources;
        }
        dma_bits |= 0x04;

        spin_lock_irqsave(&chip->lock, flags);
        outb(irq_bits << 3 | dma_bits, chip->wss_base);
        spin_unlock_irqrestore(&chip->lock, flags);

__skip_resources:
        if (chip->hardware > OPTi9XX_HW_82C928) {
                switch (chip->mpu_port) {
                case 0:
                case -1:
                        break;
                case 0x300:
                        mpu_port_bits = 0x03;
                        break;
                case 0x310:
                        mpu_port_bits = 0x02;
                        break;
                case 0x320:
                        mpu_port_bits = 0x01;
                        break;
                case 0x330:
                        mpu_port_bits = 0x00;
                        break;
                default:
                        snd_printk(KERN_ERR "MPU-401 port 0x%lx not valid\n",
                                   chip->mpu_port);
                        goto __skip_mpu;
                }

                switch (chip->mpu_irq) {
                case 5:
                        mpu_irq_bits = 0x02;
                        break;
                case 7:
                        mpu_irq_bits = 0x03;
                        break;
                case 9:
                        mpu_irq_bits = 0x00;
                        break;
                case 10:
                        mpu_irq_bits = 0x01;
                        break;
                default:
                        snd_printk(KERN_ERR "MPU-401 irq # %d not valid\n",
                                   chip->mpu_irq);
                        goto __skip_mpu;
                }

                snd_miro_write_mask(chip, OPTi9XX_MC_REG(6),
                        (chip->mpu_port <= 0) ? 0x00 :
                                0x80 | mpu_port_bits << 5 | mpu_irq_bits << 3,
                        0xf8);
        }
__skip_mpu:

        return 0;
}

static int __devinit snd_card_miro_detect(struct snd_card *card,
                                          struct snd_miro *chip)
{
        int i, err;
        unsigned char value;

        for (i = OPTi9XX_HW_82C929; i <= OPTi9XX_HW_82C924; i++) {

                if ((err = snd_miro_init(chip, i)) < 0)
                        return err;

                if ((chip->res_mc_base = request_region(chip->mc_base, chip->mc_base_size, "OPTi9xx MC")) == NULL)
                        continue;

                value = snd_miro_read(chip, OPTi9XX_MC_REG(1));
                if ((value != 0xff) && (value != inb(chip->mc_base + 1)))
                        if (value == snd_miro_read(chip, OPTi9XX_MC_REG(1)))
                                return 1;

                release_and_free_resource(chip->res_mc_base);
                chip->res_mc_base = NULL;

        }

        return -ENODEV;
}

static int __devinit snd_card_miro_aci_detect(struct snd_card *card,
                                              struct snd_miro * miro)
{
        unsigned char regval;
        int i;

        mutex_init(&miro->aci_mutex);

        /* get ACI port from OPTi9xx MC 4 */

        miro->mc_base = 0xf8c;
        regval=inb(miro->mc_base + 4);
        miro->aci_port = (regval & 0x10) ? 0x344: 0x354;

        if ((miro->res_aci_port = request_region(miro->aci_port, 3, "miro aci")) == NULL) {
                snd_printk(KERN_ERR "aci i/o area 0x%lx-0x%lx already used.\n", 
                           miro->aci_port, miro->aci_port+2);
                return -ENOMEM;
        }

        /* force ACI into a known state */
        for (i = 0; i < 3; i++)
                if (aci_cmd(miro, ACI_ERROR_OP, -1, -1) < 0) {
                        snd_printk(KERN_ERR "can't force aci into known state.\n");
                        return -ENXIO;
                }

        if ((miro->aci_vendor=aci_cmd(miro, ACI_READ_IDCODE, -1, -1)) < 0 ||
            (miro->aci_product=aci_cmd(miro, ACI_READ_IDCODE, -1, -1)) < 0) {
                snd_printk(KERN_ERR "can't read aci id on 0x%lx.\n", miro->aci_port);
                return -ENXIO;
        }

        if ((miro->aci_version=aci_cmd(miro, ACI_READ_VERSION, -1, -1)) < 0) {
                snd_printk(KERN_ERR "can't read aci version on 0x%lx.\n", 
                           miro->aci_port);
                return -ENXIO;
        }

        if (aci_cmd(miro, ACI_INIT, -1, -1) < 0 ||
            aci_cmd(miro, ACI_ERROR_OP, ACI_ERROR_OP, ACI_ERROR_OP) < 0 ||
            aci_cmd(miro, ACI_ERROR_OP, ACI_ERROR_OP, ACI_ERROR_OP) < 0) {
                snd_printk(KERN_ERR "can't initialize aci.\n"); 
                return -ENXIO;
        }

        return 0;
}

static void snd_card_miro_free(struct snd_card *card)
{
        struct snd_miro *miro = card->private_data;
        
        release_and_free_resource(miro->res_aci_port);
        release_and_free_resource(miro->res_mc_base);
}

static int __devinit snd_miro_match(struct device *devptr, unsigned int n)
{
        return 1;
}

static int __devinit snd_miro_probe(struct device *devptr, unsigned int n)
{
        static long possible_ports[] = {0x530, 0xe80, 0xf40, 0x604, -1};
        static long possible_mpu_ports[] = {0x330, 0x300, 0x310, 0x320, -1};
        static int possible_irqs[] = {11, 9, 10, 7, -1};
        static int possible_mpu_irqs[] = {10, 5, 9, 7, -1};
        static int possible_dma1s[] = {3, 1, 0, -1};
        static int possible_dma2s[][2] = {{1,-1}, {0,-1}, {-1,-1}, {0,-1}};

        int error;
        struct snd_miro *miro;
        struct snd_wss *codec;
        struct snd_timer *timer;
        struct snd_card *card;
        struct snd_pcm *pcm;
        struct snd_rawmidi *rmidi;

        if (!(card = snd_card_new(index, id, THIS_MODULE,
                                  sizeof(struct snd_miro))))
                return -ENOMEM;

        card->private_free = snd_card_miro_free;
        miro = card->private_data;
        miro->card = card;

        if ((error = snd_card_miro_aci_detect(card, miro)) < 0) {
                snd_card_free(card);
                snd_printk(KERN_ERR "unable to detect aci chip\n");
                return -ENODEV;
        }

        /* init proc interface */
        snd_miro_proc_init(miro);

        if ((error = snd_card_miro_detect(card, miro)) < 0) {
                snd_card_free(card);
                snd_printk(KERN_ERR "unable to detect OPTi9xx chip\n");
                return -ENODEV;
        }

        if (! miro->res_mc_base &&
            (miro->res_mc_base = request_region(miro->mc_base, miro->mc_base_size,
                                                "miro (OPTi9xx MC)")) == NULL) {
                snd_card_free(card);
                snd_printk(KERN_ERR "request for OPTI9xx MC failed\n");
                return -ENOMEM;
        }

        miro->wss_base = port;
        miro->fm_port = fm_port;
        miro->mpu_port = mpu_port;
        miro->irq = irq;
        miro->mpu_irq = mpu_irq;
        miro->dma1 = dma1;
        miro->dma2 = dma2;

        if (miro->wss_base == SNDRV_AUTO_PORT) {
                if ((miro->wss_base = snd_legacy_find_free_ioport(possible_ports, 4)) < 0) {
                        snd_card_free(card);
                        snd_printk(KERN_ERR "unable to find a free WSS port\n");
                        return -EBUSY;
                }
        }

        if (miro->mpu_port == SNDRV_AUTO_PORT) {
                if ((miro->mpu_port = snd_legacy_find_free_ioport(possible_mpu_ports, 2)) < 0) {
                        snd_card_free(card);
                        snd_printk(KERN_ERR "unable to find a free MPU401 port\n");
                        return -EBUSY;
                }
        }
        if (miro->irq == SNDRV_AUTO_IRQ) {
                if ((miro->irq = snd_legacy_find_free_irq(possible_irqs)) < 0) {
                        snd_card_free(card);
                        snd_printk(KERN_ERR "unable to find a free IRQ\n");
                        return -EBUSY;
                }
        }
        if (miro->mpu_irq == SNDRV_AUTO_IRQ) {
                if ((miro->mpu_irq = snd_legacy_find_free_irq(possible_mpu_irqs)) < 0) {
                        snd_card_free(card);
                        snd_printk(KERN_ERR "unable to find a free MPU401 IRQ\n");
                        return -EBUSY;
                }
        }
        if (miro->dma1 == SNDRV_AUTO_DMA) {
                if ((miro->dma1 = snd_legacy_find_free_dma(possible_dma1s)) < 0) {
                        snd_card_free(card);
                        snd_printk(KERN_ERR "unable to find a free DMA1\n");
                        return -EBUSY;
                }
        }
        if (miro->dma2 == SNDRV_AUTO_DMA) {
                if ((miro->dma2 = snd_legacy_find_free_dma(possible_dma2s[miro->dma1 % 4])) < 0) {
                        snd_card_free(card);
                        snd_printk(KERN_ERR "unable to find a free DMA2\n");
                        return -EBUSY;
                }
        }

        error = snd_miro_configure(miro);
        if (error) {
                snd_card_free(card);
                return error;
        }

        error = snd_wss_create(card, miro->wss_base + 4, -1,
                                miro->irq, miro->dma1, miro->dma2,
                                WSS_HW_AD1845, 0, &codec);
        if (error < 0) {
                snd_card_free(card);
                return error;
        }

        error = snd_wss_pcm(codec, 0, &pcm);
        if (error < 0)  {
                snd_card_free(card);
                return error;
        }
        error = snd_wss_mixer(codec);
        if (error < 0) {
                snd_card_free(card);
                return error;
        }
        error = snd_wss_timer(codec, 0, &timer);
        if (error < 0) {
                snd_card_free(card);
                return error;
        }

        miro->pcm = pcm;

        if ((error = snd_miro_mixer(miro)) < 0) {
                snd_card_free(card);
                return error;
        }

        if (miro->aci_vendor == 'm') {
                /* It looks like a miro sound card. */
                switch (miro->aci_product) {
                case 'A':
                        sprintf(card->shortname, 
                                "miroSOUND PCM1 pro / PCM12");
                        break;
                case 'B':
                        sprintf(card->shortname, 
                                "miroSOUND PCM12");
                        break;
                case 'C':
                        sprintf(card->shortname, 
                                "miroSOUND PCM20 radio");
                        break;
                default:
                        sprintf(card->shortname, 
                                "unknown miro");
                        snd_printk(KERN_INFO "unknown miro aci id\n");
                        break;
                }
        } else {
                snd_printk(KERN_INFO "found unsupported aci card\n");
                sprintf(card->shortname, "unknown Cardinal Technologies");
        }

        strcpy(card->driver, "miro");
        sprintf(card->longname, "%s: OPTi%s, %s at 0x%lx, irq %d, dma %d&%d",
                card->shortname, miro->name, pcm->name, miro->wss_base + 4,
                miro->irq, miro->dma1, miro->dma2);

        if (miro->mpu_port <= 0 || miro->mpu_port == SNDRV_AUTO_PORT)
                rmidi = NULL;
        else
                if ((error = snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
                                miro->mpu_port, 0, miro->mpu_irq, IRQF_DISABLED,
                                &rmidi)))
                        snd_printk(KERN_WARNING "no MPU-401 device at 0x%lx?\n", miro->mpu_port);

        if (miro->fm_port > 0 && miro->fm_port != SNDRV_AUTO_PORT) {
                struct snd_opl3 *opl3 = NULL;
                struct snd_opl4 *opl4;
                if (snd_opl4_create(card, miro->fm_port, miro->fm_port - 8, 
                                    2, &opl3, &opl4) < 0)
                        snd_printk(KERN_WARNING "no OPL4 device at 0x%lx\n", miro->fm_port);
        }

        if ((error = snd_set_aci_init_values(miro)) < 0) {
                snd_card_free(card);
                return error;
        }

        snd_card_set_dev(card, devptr);

        if ((error = snd_card_register(card))) {
                snd_card_free(card);
                return error;
        }

        dev_set_drvdata(devptr, card);
        return 0;
}

static int __devexit snd_miro_remove(struct device *devptr, unsigned int dev)
{
        snd_card_free(dev_get_drvdata(devptr));
        dev_set_drvdata(devptr, NULL);
        return 0;
}

#define DEV_NAME "miro"

static struct isa_driver snd_miro_driver = {
        .match          = snd_miro_match,
        .probe          = snd_miro_probe,
        .remove         = __devexit_p(snd_miro_remove),
        /* FIXME: suspend/resume */
        .driver         = {
                .name   = DEV_NAME
        },
};

static int __init alsa_card_miro_init(void)
{
        return isa_register_driver(&snd_miro_driver, 1);
}

static void __exit alsa_card_miro_exit(void)
{
        isa_unregister_driver(&snd_miro_driver);
}

module_init(alsa_card_miro_init)
module_exit(alsa_card_miro_exit)

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