diff options
| author | Vinod Koul <vinod.koul@intel.com> | 2017-12-14 11:19:34 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-19 11:14:56 +0100 |
| commit | 7c3cd189b86d2fcf0579a7b61e8d9c6d5717a72e (patch) | |
| tree | 38d2cb5c787b71c10007d5d65f87f8b290c8afda /include/linux/soundwire | |
| parent | 9251345dca24b62b14e4e53e6ee3387ae7d9c790 (diff) | |
soundwire: Add Master registration
A Master adds a SoundWire bus instance which scans the firmware
provided for device description.
In this patch we scan ACPI namespaces and create SoundWire
Slave devices based on ACPI description
Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/soundwire')
| -rw-r--r-- | include/linux/soundwire/sdw.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index 869d7041d9fc..3bfa7f1e2b47 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -7,6 +7,21 @@ struct sdw_bus; struct sdw_slave; +/* SDW spec defines and enums, as defined by MIPI 1.1. Spec */ + +/* SDW Broadcast Device Number */ +#define SDW_BROADCAST_DEV_NUM 15 + +/* SDW Enumeration Device Number */ +#define SDW_ENUM_DEV_NUM 0 + +/* SDW Group Device Numbers */ +#define SDW_GROUP12_DEV_NUM 12 +#define SDW_GROUP13_DEV_NUM 13 + +/* SDW Master Device Number, not supported yet */ +#define SDW_MASTER_DEV_NUM 14 + #define SDW_MAX_DEVICES 11 /** @@ -105,4 +120,7 @@ struct sdw_bus { struct mutex bus_lock; }; +int sdw_add_bus_master(struct sdw_bus *bus); +void sdw_delete_bus_master(struct sdw_bus *bus); + #endif /* __SOUNDWIRE_H */ |