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Check for OSS driver presence and return error accordingly.

This commit is contained in:
Eric Pouech 1999-09-27 13:36:17 +00:00 committed by Alexandre Julliard
parent 322f45cfca
commit c1e3bbff51
2 changed files with 57 additions and 20 deletions
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32
multimedia/mixer.c
View File

@ -328,9 +328,20 @@ static DWORD MIX_GetLineInfo(WORD wDevID, LPMIXERLINEA lpMl, DWORD fdwInfo)
*/
static DWORD MIX_Open(WORD wDevID, LPMIXEROPENDESC lpMod, DWORD flags)
{
int mixer;
TRACE("(%04X, %p, %lu);\n", wDevID, lpMod, flags);
if (lpMod == NULL) return MMSYSERR_INVALPARAM;
/* hmm. We don't keep the mixer device open. So just pretend it works */
/* hmm. We don't keep the mixer device open. only check if it's present */
if ((mixer = open(MIXER_DEV, O_RDWR)) < 0) {
if (errno == ENODEV || errno == ENXIO) {
/* no driver present */
return MMSYSERR_NODRIVER;
}
} else {
close(mixer);
}
return MMSYSERR_NOERROR;
}
@ -502,6 +513,22 @@ static DWORD MIX_SetControlDetails(WORD wDevID, LPMIXERCONTROLDETAILS lpmcd, DWO
return MMSYSERR_NOTSUPPORTED;
}
static DWORD MIX_GetNumDevs(UINT wDevID)
{
int mixer;
int ret;
if ((mixer = open(MIXER_DEV, O_RDWR)) < 0) {
/* FIXME: ENXIO => no mixer installed */
WARN("mixer device not available !\n");
ret = 0;
} else {
close(mixer);
ret = 1;
}
TRACE("return %d;\n", ret);
return ret;
}
#endif /* HAVE_OSS */
/**************************************************************************
@ -526,8 +553,7 @@ DWORD WINAPI OSS_mixMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
case MXDM_GETLINEINFO:
return MIX_GetLineInfo(wDevID, (LPMIXERLINEA)dwParam1, dwParam2);
case MXDM_GETNUMDEVS:
TRACE("return 1;\n");
return 1;
return MIX_GetNumDevs(wDevID);
case MXDM_OPEN:
return MIX_Open(wDevID, (LPMIXEROPENDESC)dwParam1, dwParam2);
case MXDM_CLOSE:

43
multimedia/mmaux.c
View File

@ -20,19 +20,33 @@
DEFAULT_DEBUG_CHANNEL(mmaux)
#ifdef HAVE_OSS
#define MIXER_DEV "/dev/mixer"
static int NumDev = 6;
/*-----------------------------------------------------------------------*/
static int AUXDRV_Init(void)
{
int mixer;
if ((mixer = open(MIXER_DEV, O_RDWR)) < 0) {
WARN("mixer device not available !\n");
NumDev = 0;
} else {
close(mixer);
NumDev = 6;
}
return NumDev;
}
/**************************************************************************
* AUX_GetDevCaps [internal]
*/
static DWORD AUX_GetDevCaps(WORD wDevID, LPAUXCAPSA lpCaps, DWORD dwSize)
{
#ifdef HAVE_OSS
int mixer,volume;
TRACE("(%04X, %p, %lu);\n", wDevID, lpCaps, dwSize);
@ -43,7 +57,7 @@ static DWORD AUX_GetDevCaps(WORD wDevID, LPAUXCAPSA lpCaps, DWORD dwSize)
}
if (ioctl(mixer, SOUND_MIXER_READ_LINE, &volume) == -1) {
close(mixer);
WARN("unable read mixer !\n");
WARN("unable to read mixer !\n");
return MMSYSERR_NOTENABLED;
}
close(mixer);
@ -92,9 +106,6 @@ static DWORD AUX_GetDevCaps(WORD wDevID, LPAUXCAPSA lpCaps, DWORD dwSize)
lpCaps->dwSupport = AUXCAPS_VOLUME | AUXCAPS_LRVOLUME;
#endif
return MMSYSERR_NOERROR;
#else
return MMSYSERR_NOTENABLED;
#endif
}
@ -103,7 +114,6 @@ static DWORD AUX_GetDevCaps(WORD wDevID, LPAUXCAPSA lpCaps, DWORD dwSize)
*/
static DWORD AUX_GetVolume(WORD wDevID, LPDWORD lpdwVol)
{
#ifdef HAVE_OSS
int mixer, volume, left, right, cmd;
TRACE("(%04X, %p);\n", wDevID, lpdwVol);
@ -142,7 +152,7 @@ static DWORD AUX_GetVolume(WORD wDevID, LPDWORD lpdwVol)
return MMSYSERR_NOTENABLED;
}
if (ioctl(mixer, cmd, &volume) == -1) {
WARN("unable read mixer !\n");
WARN("unable to read mixer !\n");
return MMSYSERR_NOTENABLED;
}
close(mixer);
@ -151,9 +161,6 @@ static DWORD AUX_GetVolume(WORD wDevID, LPDWORD lpdwVol)
TRACE("left=%d right=%d !\n", left, right);
*lpdwVol = MAKELONG((left * 0xFFFFL) / 100, (right * 0xFFFFL) / 100);
return MMSYSERR_NOERROR;
#else
return MMSYSERR_NOTENABLED;
#endif
}
/**************************************************************************
@ -161,7 +168,6 @@ static DWORD AUX_GetVolume(WORD wDevID, LPDWORD lpdwVol)
*/
static DWORD AUX_SetVolume(WORD wDevID, DWORD dwParam)
{
#ifdef HAVE_OSS
int mixer;
int volume, left, right;
int cmd;
@ -207,16 +213,14 @@ static DWORD AUX_SetVolume(WORD wDevID, DWORD dwParam)
return MMSYSERR_NOTENABLED;
}
if (ioctl(mixer, cmd, &volume) == -1) {
WARN("unable set mixer !\n");
WARN("unable to set mixer !\n");
return MMSYSERR_NOTENABLED;
}
close(mixer);
return MMSYSERR_NOERROR;
#else
return MMSYSERR_NOTENABLED;
#endif
}
#endif
/**************************************************************************
* OSS_auxMessage [sample driver]
@ -226,8 +230,12 @@ DWORD WINAPI OSS_auxMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
{
TRACE("(%04X, %04X, %08lX, %08lX, %08lX);\n",
wDevID, wMsg, dwUser, dwParam1, dwParam2);
switch(wMsg) {
#ifdef HAVE_OSS
switch (wMsg) {
case DRVM_INIT:
AUXDRV_Init();
/* fall thru */
case DRVM_EXIT:
case DRVM_ENABLE:
case DRVM_DISABLE:
@ -246,4 +254,7 @@ DWORD WINAPI OSS_auxMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
WARN("unknown message !\n");
}
return MMSYSERR_NOTSUPPORTED;
#else
return MMSYSERR_NOTENABLED;
#endif
}