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authorVinod Koul <vinod.koul@intel.com>2017-12-14 11:19:40 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-12-19 11:28:13 +0100
commitb0a9c37b0178bf397393952e98789b0d4dc7fd6c (patch)
tree5a758c6214b1127f37dcbd20576d6208e7a72c53 /include
parentd52d7a1be02cc6da287bfaea7eebb0de1a77fbe2 (diff)
downloadlinux-b0a9c37b0178bf397393952e98789b0d4dc7fd6c.tar.bz2
soundwire: Add slave status handling
Add status handling API sdw_handle_slave_status() to handle Slave status changes. Signed-off-by: Hardik T Shah <hardik.t.shah@intel.com> 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> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/soundwire/sdw.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index cbadddce470d..e91fdcf41049 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -331,11 +331,28 @@ struct sdw_slave_id {
};
/**
+ * struct sdw_slave_intr_status - Slave interrupt status
+ * @control_port: control port status
+ * @port: data port status
+ */
+struct sdw_slave_intr_status {
+ u8 control_port;
+ u8 port[15];
+};
+
+/**
* struct sdw_slave_ops - Slave driver callback ops
* @read_prop: Read Slave properties
+ * @interrupt_callback: Device interrupt notification (invoked in thread
+ * context)
+ * @update_status: Update Slave status
*/
struct sdw_slave_ops {
int (*read_prop)(struct sdw_slave *sdw);
+ int (*interrupt_callback)(struct sdw_slave *slave,
+ struct sdw_slave_intr_status *status);
+ int (*update_status)(struct sdw_slave *slave,
+ enum sdw_slave_status status);
};
/**
@@ -382,6 +399,9 @@ struct sdw_driver {
{ .mfg_id = (_mfg_id), .part_id = (_part_id), \
.driver_data = (unsigned long)(_drv_data) }
+int sdw_handle_slave_status(struct sdw_bus *bus,
+ enum sdw_slave_status status[]);
+
/*
* SDW master structures and APIs
*/