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authorVinod Koul <vinod.koul@intel.com>2017-12-14 08:49:34 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-12-19 13:14:56 +0300
commit7c3cd189b86d2fcf0579a7b61e8d9c6d5717a72e (patch)
tree38d2cb5c787b71c10007d5d65f87f8b290c8afda /include/linux/soundwire
parent9251345dca24b62b14e4e53e6ee3387ae7d9c790 (diff)
downloadlinux-7c3cd189b86d2fcf0579a7b61e8d9c6d5717a72e.tar.xz
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.h18
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 */