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https://github.com/alsa-project/alsa-lib.git
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Code reorganization; support for ENS1370 (untested)
This commit is contained in:
Jaroslav Kysela
parent
51f5d9d461
commit
d4253b7e53
1 changed files with 113 additions and 23 deletions
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@ -35,14 +35,41 @@
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#include "pcm_local.h"
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#include "pcm_plugin.h"
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#define SURR_FLG_CAPTURE (1<<0)
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#define SURR_FLG_NO_4CH (1<<1)
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#define SURR_FLG_NO_6CH (1<<2)
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#define SURR_FLG_NO_CTL_CLOSE (1<<3)
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typedef struct _snd_pcm_surround snd_pcm_surround_t;
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typedef struct {
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snd_card_type_t type;
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unsigned int flags;
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int (*scount)(snd_ctl_t *ctl, snd_ctl_card_info_t *info, snd_pcm_surround_type_t type);
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int (*sopen)(snd_pcm_surround_t *surr,
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snd_ctl_card_info_t *info,
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snd_pcm_surround_type_t type,
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snd_pcm_stream_t stream,
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int mode);
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void (*sclose)(snd_pcm_surround_t *surr);
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} surround_open_t;
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struct _snd_pcm_surround {
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int card; /* card number */
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int device; /* device number */
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unsigned int channels; /* count of channels (4 or 6) */
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int pcms; /* count of PCM channels */
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snd_pcm_t *pcm[3]; /* up to three PCM stereo streams */
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int linked[3]; /* streams are linked */
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} snd_pcm_surround_t;
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snd_ctl_t *ctl; /* CTL handle */
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surround_open_t *po;
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union {
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struct {
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snd_ctl_elem_value_t *sw4ch;
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snd_ctl_elem_value_t *sw_pcm;
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} ens1370;
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} s;
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};
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static int snd_pcm_surround_free(snd_pcm_surround_t *surr);
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@ -443,6 +470,10 @@ static int snd_pcm_surround_free(snd_pcm_surround_t *surr)
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snd_pcm_close(surr->pcm[i]);
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surr->pcm[i] = NULL;
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}
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if (surr->po->sclose)
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surr->po->sclose(surr);
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if (surr->ctl)
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snd_ctl_close(surr->ctl);
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free(surr);
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return 0;
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}
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@ -505,7 +536,6 @@ static int count_si7018(snd_ctl_t *ctl ATTRIBUTE_UNUSED,
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}
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static int open_si7018(snd_pcm_surround_t *surr,
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snd_ctl_t *ctl ATTRIBUTE_UNUSED,
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snd_ctl_card_info_t *info,
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snd_pcm_surround_type_t type,
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snd_pcm_stream_t stream, int mode)
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@ -521,7 +551,6 @@ static int open_si7018(snd_pcm_surround_t *surr,
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}
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static int open_fm801(snd_pcm_surround_t *surr,
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snd_ctl_t *ctl ATTRIBUTE_UNUSED,
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snd_ctl_card_info_t *info,
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snd_pcm_surround_type_t type,
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snd_pcm_stream_t stream, int mode)
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@ -535,27 +564,83 @@ static int open_fm801(snd_pcm_surround_t *surr,
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return 0;
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}
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static int open_ens1370(snd_pcm_surround_t *surr,
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snd_ctl_card_info_t *info,
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snd_pcm_surround_type_t type,
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snd_pcm_stream_t stream, int mode)
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{
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int err;
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snd_ctl_elem_id_t *id;
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snd_ctl_elem_value_t *val, *value;
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if ((err = snd_pcm_surround_three_streams(surr, type,
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snd_ctl_card_info_get_card(info),
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1, 0, 0, 0, -1, -1,
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stream, mode)) < 0)
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return err;
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snd_ctl_elem_id_alloca(&id);
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snd_ctl_elem_value_alloca(&val);
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/* OK, reroute PCM0 (rear) to Line-In Jack */
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snd_ctl_elem_id_set_interface(id, SNDRV_CTL_ELEM_IFACE_CARD);
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snd_ctl_elem_id_set_name(id, "PCM 0 Output also on Line-In Jack");
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snd_ctl_elem_id_set_index(id, 0);
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if ((err = snd_ctl_elem_lock(surr->ctl, id)) < 0)
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return err;
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snd_ctl_elem_value_malloc(&value);
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snd_ctl_elem_value_set_id(value, id);
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if ((err = snd_ctl_elem_read(surr->ctl, value)) < 0) {
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free(value);
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return err;
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}
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surr->s.ens1370.sw4ch = value;
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snd_ctl_elem_value_copy(val, value);
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snd_ctl_elem_value_set_boolean(val, 0, 1);
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if ((err = snd_ctl_elem_write(surr->ctl, val)) < 0)
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return err;
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/* Turn off the PCM volume, the second PCM (front speakers) uses the FM control */
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snd_ctl_elem_id_set_interface(id, SNDRV_CTL_ELEM_IFACE_MIXER);
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snd_ctl_elem_id_set_name(id, "FM");
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snd_ctl_elem_id_set_index(id, 0);
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if ((err = snd_ctl_elem_lock(surr->ctl, id)) < 0)
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return err;
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snd_ctl_elem_value_malloc(&value);
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snd_ctl_elem_value_set_id(value, id);
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if ((err = snd_ctl_elem_read(surr->ctl, value)) < 0) {
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free(value);
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return err;
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}
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surr->s.ens1370.sw_pcm = value;
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snd_ctl_elem_value_copy(val, value);
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snd_ctl_elem_value_set_boolean(val, 0, 0);
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snd_ctl_elem_value_set_boolean(val, 1, 0);
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if ((err = snd_ctl_elem_write(surr->ctl, val)) < 0)
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return err;
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return 0;
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}
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static void close_ens1370(snd_pcm_surround_t *surr)
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{
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if (surr->s.ens1370.sw4ch) {
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snd_ctl_elem_write(surr->ctl, surr->s.ens1370.sw4ch);
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free(surr->s.ens1370.sw4ch);
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}
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if (surr->s.ens1370.sw_pcm) {
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snd_ctl_elem_write(surr->ctl, surr->s.ens1370.sw_pcm);
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free(surr->s.ens1370.sw_pcm);
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}
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}
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#define SND_CARD_TYPE_NONE SNDRV_CARD_TYPE_SB_10 /* this card definitely doesn't support surround */
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#define SURR_FLG_CAPTURE (1<<0)
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#define SURR_FLG_NO_4CH (1<<1)
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#define SURR_FLG_NO_6CH (1<<2)
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typedef struct {
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snd_card_type_t type;
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unsigned int flags;
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int (*scount)(snd_ctl_t *ctl, snd_ctl_card_info_t *info, snd_pcm_surround_type_t type);
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int (*sopen)(snd_pcm_surround_t *surr,
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snd_ctl_t *ctl, snd_ctl_card_info_t *info,
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snd_pcm_surround_type_t type,
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snd_pcm_stream_t stream,
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int mode);
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} surround_open_t;
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static surround_open_t open_table[] = {
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{ type: SND_CARD_TYPE_SI_7018, flags: 0, scount: count_si7018, sopen: open_si7018 },
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{ type: SND_CARD_TYPE_FM801, flags: 0, scount: count_generic, sopen: open_fm801 },
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{ type: SND_CARD_TYPE_NONE, flags: 0, scount: NULL, sopen: NULL }
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{ type: SND_CARD_TYPE_SI_7018, flags: 0, scount: count_si7018, sopen: open_si7018, sclose: NULL },
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{ type: SND_CARD_TYPE_FM801, flags: 0, scount: count_generic, sopen: open_fm801, sclose: NULL },
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{ type: SND_CARD_TYPE_ENS1370, flags: SURR_FLG_NO_6CH|SURR_FLG_NO_CTL_CLOSE, scount: count_generic, sopen: open_ens1370, sclose: close_ens1370 },
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{ type: SND_CARD_TYPE_NONE, flags: 0, scount: NULL, sopen: NULL, sclose: NULL }
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};
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int snd_pcm_surround_open(snd_pcm_t **pcmp, const char *name, int card, int dev,
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@ -591,12 +676,14 @@ int snd_pcm_surround_open(snd_pcm_t **pcmp, const char *name, int card, int dev,
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snd_pcm_surround_free(surr);
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return err;
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}
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surr->ctl = ctl;
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snd_ctl_card_info_alloca(&info);
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if ((err = snd_ctl_card_info(ctl, info)) < 0)
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goto __error;
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ctype = snd_ctl_card_info_get_type(info);
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for (po = open_table; po->type != SND_CARD_TYPE_NONE; po++) {
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if (po->type == ctype) {
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surr->po = po;
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if (stream == SND_PCM_STREAM_CAPTURE && !(po->flags & SURR_FLG_CAPTURE)) {
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err = -ENODEV;
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goto __error;
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@ -615,7 +702,7 @@ int snd_pcm_surround_open(snd_pcm_t **pcmp, const char *name, int card, int dev,
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}
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break;
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}
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if ((err = po->sopen(surr, ctl, info, type, stream, mode)) < 0)
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if ((err = po->sopen(surr, info, type, stream, mode)) < 0)
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goto __error;
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break;
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}
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@ -624,7 +711,10 @@ int snd_pcm_surround_open(snd_pcm_t **pcmp, const char *name, int card, int dev,
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err = -ENODEV;
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goto __error;
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}
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snd_ctl_close(ctl);
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if (!(po->flags & SURR_FLG_NO_CTL_CLOSE)) {
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snd_ctl_close(ctl);
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surr->ctl = NULL;
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}
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ctl = NULL;
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pcm = calloc(1, sizeof(snd_pcm_t));
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if (!pcm) {
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