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author | Len Brown <len.brown@intel.com> | 2011-03-23 09:34:54 +0300 |
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committer | Len Brown <len.brown@intel.com> | 2011-03-23 09:34:54 +0300 |
commit | 02e2407858fd62053bf60349c0e72cd1c7a4a60e (patch) | |
tree | 0ebdbddc97d3abbc675916010e7771065b70c137 /sound/firewire/cmp.h | |
parent | 96e1c408ea8a556c5b51e0e7d56bd2afbfbf5fe9 (diff) | |
parent | 6447f55da90b77faec1697d499ed7986bb4f6de6 (diff) | |
download | linux-02e2407858fd62053bf60349c0e72cd1c7a4a60e.tar.xz |
Merge branch 'linus' into release
Conflicts:
arch/x86/kernel/acpi/sleep.c
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'sound/firewire/cmp.h')
-rw-r--r-- | sound/firewire/cmp.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/sound/firewire/cmp.h b/sound/firewire/cmp.h new file mode 100644 index 000000000000..f47de08feb12 --- /dev/null +++ b/sound/firewire/cmp.h @@ -0,0 +1,41 @@ +#ifndef SOUND_FIREWIRE_CMP_H_INCLUDED +#define SOUND_FIREWIRE_CMP_H_INCLUDED + +#include <linux/mutex.h> +#include <linux/types.h> +#include "iso-resources.h" + +struct fw_unit; + +/** + * struct cmp_connection - manages an isochronous connection to a device + * @speed: the connection's actual speed + * + * This structure manages (using CMP) an isochronous stream from the local + * computer to a device's input plug (iPCR). + * + * There is no corresponding oPCR created on the local computer, so it is not + * possible to overlay connections on top of this one. + */ +struct cmp_connection { + int speed; + /* private: */ + bool connected; + struct mutex mutex; + struct fw_iso_resources resources; + __be32 last_pcr_value; + unsigned int pcr_index; + unsigned int max_speed; +}; + +int cmp_connection_init(struct cmp_connection *connection, + struct fw_unit *unit, + unsigned int ipcr_index); +void cmp_connection_destroy(struct cmp_connection *connection); + +int cmp_connection_establish(struct cmp_connection *connection, + unsigned int max_payload); +int cmp_connection_update(struct cmp_connection *connection); +void cmp_connection_break(struct cmp_connection *connection); + +#endif |