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[ALSA] cmipci - Allow to disable integrated FM port

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The driver didn't allow to disable the integrated FM port (if available),
and this annoyed people who don't want FM port.  Now fm_port=0 disables
the FM port unconditionally.  fm_port=1 is used for enabling the integrated
FM port (as default).
Also fixed the documentation about this option.
Fix ALSA bug#2491.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Takashi Iwai 2007-02-15 18:56:43 +01:00 committed by Jaroslav Kysela
parent dd87da1c5d
commit 2f24d159d5
2 changed files with 14 additions and 8 deletions
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4
Documentation/sound/alsa/ALSA-Configuration.txt
View File

@ -370,7 +370,9 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
mpu_port - 0x300,0x310,0x320,0x330 = legacy port,
1 = integrated PCI port,
0 = disable (default)
fm_port - 0x388 (default), 0 = disable (default)
fm_port - 0x388 = legacy port,
1 = integrated PCI port (default),
0 = disable
soft_ac3 - Software-conversion of raw SPDIF packets (model 033 only)
(default = 1)
joystick_port - Joystick port address (0 = disable, 1 = auto-detect)

18
sound/pci/cmipci.c
View File

@ -57,7 +57,7 @@ static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable switches */
static long mpu_port[SNDRV_CARDS];
static long fm_port[SNDRV_CARDS];
static long fm_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)]=1};
static int soft_ac3[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)]=1};
#ifdef SUPPORT_JOYSTICK
static int joystick_port[SNDRV_CARDS];
@ -2779,6 +2779,9 @@ static int __devinit snd_cmipci_create_fm(struct cmipci *cm, long fm_port)
struct snd_opl3 *opl3;
int err;
if (!fm_port)
goto disable_fm;
/* first try FM regs in PCI port range */
iosynth = cm->iobase + CM_REG_FM_PCI;
err = snd_opl3_create(cm->card, iosynth, iosynth + 2,
@ -2793,7 +2796,7 @@ static int __devinit snd_cmipci_create_fm(struct cmipci *cm, long fm_port)
case 0x3C8: val |= CM_FMSEL_3C8; break;
case 0x388: val |= CM_FMSEL_388; break;
default:
return 0;
goto disable_fm;
}
snd_cmipci_write(cm, CM_REG_LEGACY_CTRL, val);
/* enable FM */
@ -2803,11 +2806,7 @@ static int __devinit snd_cmipci_create_fm(struct cmipci *cm, long fm_port)
OPL3_HW_OPL3, 0, &opl3) < 0) {
printk(KERN_ERR "cmipci: no OPL device at %#lx, "
"skipping...\n", iosynth);
/* disable FM */
snd_cmipci_write(cm, CM_REG_LEGACY_CTRL,
val & ~CM_FMSEL_MASK);
snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
return 0;
goto disable_fm;
}
}
if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
@ -2815,6 +2814,11 @@ static int __devinit snd_cmipci_create_fm(struct cmipci *cm, long fm_port)
return err;
}
return 0;
disable_fm:
snd_cmipci_clear_bit(cm, CM_REG_LEGACY_CTRL, CM_FMSEL_MASK);
snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_FM_EN);
return 0;
}
static int __devinit snd_cmipci_create(struct snd_card *card, struct pci_dev *pci,