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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2014-04-25 15:44:55 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2014-05-26 14:22:14 +0200 |
| commit | c68a1c6584d066d0f2b7aa2117d2eddce2d01def (patch) | |
| tree | 2493f740847f17778ccf1a41430bb5d6291d84ec | |
| parent | ALSA: firewire-lib: Rename macros, variables and functions for CMP (diff) | |
| download | linux-c68a1c6584d066d0f2b7aa2117d2eddce2d01def.tar.xz linux-c68a1c6584d066d0f2b7aa2117d2eddce2d01def.zip | |
ALSA: firewire-lib: Add 'direction' member to 'cmp_connection' structure
This patch adds 'direction' member to 'cmp_connection' structure to indicate
the direction of connection. This patch also adds 'direction' argument to
cmp_connection_init() function to determine the direction.
The cmp_connection_init() function is exported and used in snd-firewire-speakers
so this patch also affect it.
This patch just add them. Actual implementation will be done by followed
patches.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/firewire/cmp.c | 1 | ||||
| -rw-r--r-- | sound/firewire/cmp.h | 7 | ||||
| -rw-r--r-- | sound/firewire/speakers.c | 2 |
3 files changed, 9 insertions, 1 deletions
diff --git a/sound/firewire/cmp.c b/sound/firewire/cmp.c index deb494d6e785..c7f7a3164390 100644 --- a/sound/firewire/cmp.c +++ b/sound/firewire/cmp.c @@ -94,6 +94,7 @@ static int pcr_modify(struct cmp_connection *c, */ int cmp_connection_init(struct cmp_connection *c, struct fw_unit *unit, + enum cmp_direction direction, unsigned int pcr_index) { __be32 mpr_be; diff --git a/sound/firewire/cmp.h b/sound/firewire/cmp.h index 2320cd44d499..9b58448d5791 100644 --- a/sound/firewire/cmp.h +++ b/sound/firewire/cmp.h @@ -7,6 +7,11 @@ struct fw_unit; +enum cmp_direction { + CMP_INPUT = 0, + CMP_OUTPUT, +}; + /** * struct cmp_connection - manages an isochronous connection to a device * @speed: the connection's actual speed @@ -26,10 +31,12 @@ struct cmp_connection { __be32 last_pcr_value; unsigned int pcr_index; unsigned int max_speed; + enum cmp_direction direction; }; int cmp_connection_init(struct cmp_connection *connection, struct fw_unit *unit, + enum cmp_direction direction, unsigned int pcr_index); void cmp_connection_destroy(struct cmp_connection *connection); diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c index 58e7ab010c60..dd9983b98607 100644 --- a/sound/firewire/speakers.c +++ b/sound/firewire/speakers.c @@ -673,7 +673,7 @@ static int fwspk_probe(struct fw_unit *unit, fwspk->unit = fw_unit_get(unit); fwspk->device_info = (const struct device_info *)id->driver_data; - err = cmp_connection_init(&fwspk->connection, unit, 0); + err = cmp_connection_init(&fwspk->connection, unit, CMP_INPUT, 0); if (err < 0) goto err_unit; |