From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Sakamoto Subject: [PATCH 11/44] firewire-lib: Add 'direction' member to 'cmp_connection' structure Date: Fri, 21 Mar 2014 20:09:56 +0900 Message-ID: <1395400229-22957-12-git-send-email-o-takashi@sakamocchi.jp> References: <1395400229-22957-1-git-send-email-o-takashi@sakamocchi.jp> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1395400229-22957-1-git-send-email-o-takashi@sakamocchi.jp> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux1394-devel-bounces@lists.sourceforge.net To: clemens@ladisch.de, tiwai@suse.de, perex@perex.cz Cc: alsa-devel@alsa-project.org, linux1394-devel@lists.sourceforge.net, ffado-devel@lists.sf.net List-Id: alsa-devel@alsa-project.org 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 --- sound/firewire/cmp.c | 3 ++- sound/firewire/cmp.h | 7 +++++++ sound/firewire/speakers.c | 2 +- 3 files changed, 10 insertions(+), 2 deletions(-) diff --git a/sound/firewire/cmp.c b/sound/firewire/cmp.c index 17ad4f2..c7f7a31 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; @@ -153,7 +154,7 @@ static __be32 ipcr_set_modify(struct cmp_connection *c, __be32 ipcr) static int pcr_set_check(struct cmp_connection *c, __be32 pcr) { if (pcr & cpu_to_be32(PCR_BCAST_CONN | - PCR_P2P_CONN_MASK)) { + PCR_P2P_CONN_MASK)) { cmp_error(c, "plug is already in use\n"); return -EBUSY; } diff --git a/sound/firewire/cmp.h b/sound/firewire/cmp.h index 2320cd4..9b58448 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 c07e7cd..4a9b48b 100644 --- a/sound/firewire/speakers.c +++ b/sound/firewire/speakers.c @@ -679,7 +679,7 @@ 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; -- 1.8.3.2 ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech