#include "pcm_local.h"
#include "pcm_plugin.h"
+#define SURR_FLG_CAPTURE (1<<0)
+#define SURR_FLG_NO_4CH (1<<1)
+#define SURR_FLG_NO_6CH (1<<2)
+#define SURR_FLG_NO_CTL_CLOSE (1<<3)
+
+typedef struct _snd_pcm_surround snd_pcm_surround_t;
+
typedef struct {
+ snd_card_type_t type;
+ unsigned int flags;
+ int (*scount)(snd_ctl_t *ctl, snd_ctl_card_info_t *info, snd_pcm_surround_type_t type);
+ int (*sopen)(snd_pcm_surround_t *surr,
+ snd_ctl_card_info_t *info,
+ snd_pcm_surround_type_t type,
+ snd_pcm_stream_t stream,
+ int mode);
+ void (*sclose)(snd_pcm_surround_t *surr);
+} surround_open_t;
+
+struct _snd_pcm_surround {
int card; /* card number */
int device; /* device number */
unsigned int channels; /* count of channels (4 or 6) */
int pcms; /* count of PCM channels */
snd_pcm_t *pcm[3]; /* up to three PCM stereo streams */
int linked[3]; /* streams are linked */
-} snd_pcm_surround_t;
+ snd_ctl_t *ctl; /* CTL handle */
+ surround_open_t *po;
+ union {
+ struct {
+ snd_ctl_elem_value_t *sw4ch;
+ snd_ctl_elem_value_t *sw_pcm;
+ } ens1370;
+ } s;
+};
static int snd_pcm_surround_free(snd_pcm_surround_t *surr);
snd_pcm_close(surr->pcm[i]);
surr->pcm[i] = NULL;
}
+ if (surr->po->sclose)
+ surr->po->sclose(surr);
+ if (surr->ctl)
+ snd_ctl_close(surr->ctl);
free(surr);
return 0;
}
}
static int open_si7018(snd_pcm_surround_t *surr,
- snd_ctl_t *ctl ATTRIBUTE_UNUSED,
snd_ctl_card_info_t *info,
snd_pcm_surround_type_t type,
snd_pcm_stream_t stream, int mode)
}
static int open_fm801(snd_pcm_surround_t *surr,
- snd_ctl_t *ctl ATTRIBUTE_UNUSED,
snd_ctl_card_info_t *info,
snd_pcm_surround_type_t type,
snd_pcm_stream_t stream, int mode)
return 0;
}
-#define SND_CARD_TYPE_NONE SNDRV_CARD_TYPE_SB_10 /* this card definitely doesn't support surround */
+static int open_ens1370(snd_pcm_surround_t *surr,
+ snd_ctl_card_info_t *info,
+ snd_pcm_surround_type_t type,
+ snd_pcm_stream_t stream, int mode)
+{
+ int err;
+ snd_ctl_elem_id_t *id;
+ snd_ctl_elem_value_t *val, *value;
-#define SURR_FLG_CAPTURE (1<<0)
-#define SURR_FLG_NO_4CH (1<<1)
-#define SURR_FLG_NO_6CH (1<<2)
+ if ((err = snd_pcm_surround_three_streams(surr, type,
+ snd_ctl_card_info_get_card(info),
+ 1, 0, 0, 0, -1, -1,
+ stream, mode)) < 0)
+ return err;
+ snd_ctl_elem_id_alloca(&id);
+ snd_ctl_elem_value_alloca(&val);
+
+ /* OK, reroute PCM0 (rear) to Line-In Jack */
+ snd_ctl_elem_id_set_interface(id, SNDRV_CTL_ELEM_IFACE_CARD);
+ snd_ctl_elem_id_set_name(id, "PCM 0 Output also on Line-In Jack");
+ snd_ctl_elem_id_set_index(id, 0);
+ if ((err = snd_ctl_elem_lock(surr->ctl, id)) < 0)
+ return err;
+ snd_ctl_elem_value_malloc(&value);
+ snd_ctl_elem_value_set_id(value, id);
+ if ((err = snd_ctl_elem_read(surr->ctl, value)) < 0) {
+ free(value);
+ return err;
+ }
+ surr->s.ens1370.sw4ch = value;
+ snd_ctl_elem_value_copy(val, value);
+ snd_ctl_elem_value_set_boolean(val, 0, 1);
+ if ((err = snd_ctl_elem_write(surr->ctl, val)) < 0)
+ return err;
-typedef struct {
- snd_card_type_t type;
- unsigned int flags;
- int (*scount)(snd_ctl_t *ctl, snd_ctl_card_info_t *info, snd_pcm_surround_type_t type);
- int (*sopen)(snd_pcm_surround_t *surr,
- snd_ctl_t *ctl, snd_ctl_card_info_t *info,
- snd_pcm_surround_type_t type,
- snd_pcm_stream_t stream,
- int mode);
-} surround_open_t;
+
+ /* Turn off the PCM volume, the second PCM (front speakers) uses the FM control */
+ snd_ctl_elem_id_set_interface(id, SNDRV_CTL_ELEM_IFACE_MIXER);
+ snd_ctl_elem_id_set_name(id, "FM");
+ snd_ctl_elem_id_set_index(id, 0);
+ if ((err = snd_ctl_elem_lock(surr->ctl, id)) < 0)
+ return err;
+ snd_ctl_elem_value_malloc(&value);
+ snd_ctl_elem_value_set_id(value, id);
+ if ((err = snd_ctl_elem_read(surr->ctl, value)) < 0) {
+ free(value);
+ return err;
+ }
+ surr->s.ens1370.sw_pcm = value;
+ snd_ctl_elem_value_copy(val, value);
+ snd_ctl_elem_value_set_boolean(val, 0, 0);
+ snd_ctl_elem_value_set_boolean(val, 1, 0);
+ if ((err = snd_ctl_elem_write(surr->ctl, val)) < 0)
+ return err;
+
+ return 0;
+}
+
+static void close_ens1370(snd_pcm_surround_t *surr)
+{
+ if (surr->s.ens1370.sw4ch) {
+ snd_ctl_elem_write(surr->ctl, surr->s.ens1370.sw4ch);
+ free(surr->s.ens1370.sw4ch);
+ }
+ if (surr->s.ens1370.sw_pcm) {
+ snd_ctl_elem_write(surr->ctl, surr->s.ens1370.sw_pcm);
+ free(surr->s.ens1370.sw_pcm);
+ }
+}
+
+#define SND_CARD_TYPE_NONE SNDRV_CARD_TYPE_SB_10 /* this card definitely doesn't support surround */
static surround_open_t open_table[] = {
- { type: SND_CARD_TYPE_SI_7018, flags: 0, scount: count_si7018, sopen: open_si7018 },
- { type: SND_CARD_TYPE_FM801, flags: 0, scount: count_generic, sopen: open_fm801 },
- { type: SND_CARD_TYPE_NONE, flags: 0, scount: NULL, sopen: NULL }
+ { type: SND_CARD_TYPE_SI_7018, flags: 0, scount: count_si7018, sopen: open_si7018, sclose: NULL },
+ { type: SND_CARD_TYPE_FM801, flags: 0, scount: count_generic, sopen: open_fm801, sclose: NULL },
+ { type: SND_CARD_TYPE_ENS1370, flags: SURR_FLG_NO_6CH|SURR_FLG_NO_CTL_CLOSE, scount: count_generic, sopen: open_ens1370, sclose: close_ens1370 },
+ { type: SND_CARD_TYPE_NONE, flags: 0, scount: NULL, sopen: NULL, sclose: NULL }
};
int snd_pcm_surround_open(snd_pcm_t **pcmp, const char *name, int card, int dev,
snd_pcm_surround_free(surr);
return err;
}
+ surr->ctl = ctl;
snd_ctl_card_info_alloca(&info);
if ((err = snd_ctl_card_info(ctl, info)) < 0)
goto __error;
ctype = snd_ctl_card_info_get_type(info);
for (po = open_table; po->type != SND_CARD_TYPE_NONE; po++) {
if (po->type == ctype) {
+ surr->po = po;
if (stream == SND_PCM_STREAM_CAPTURE && !(po->flags & SURR_FLG_CAPTURE)) {
err = -ENODEV;
goto __error;
}
break;
}
- if ((err = po->sopen(surr, ctl, info, type, stream, mode)) < 0)
+ if ((err = po->sopen(surr, info, type, stream, mode)) < 0)
goto __error;
break;
}
err = -ENODEV;
goto __error;
}
- snd_ctl_close(ctl);
+ if (!(po->flags & SURR_FLG_NO_CTL_CLOSE)) {
+ snd_ctl_close(ctl);
+ surr->ctl = NULL;
+ }
ctl = NULL;
pcm = calloc(1, sizeof(snd_pcm_t));
if (!pcm) {
git://git.alsa-project.org / alsa-lib.git / commitdiff