summaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
Diffstat (limited to 'include')
-rw-r--r--include/linux/soundwire/sdw.h47
1 files changed, 46 insertions, 1 deletions
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index 5e06a0de508c..03b55804d830 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -367,7 +367,30 @@ struct sdw_slave_intr_status {
};
/**
- * struct sdw_slave_ops - Slave driver callback ops
+ * sdw_reg_bank - SoundWire register banks
+ * @SDW_BANK0: Soundwire register bank 0
+ * @SDW_BANK1: Soundwire register bank 1
+ */
+enum sdw_reg_bank {
+ SDW_BANK0,
+ SDW_BANK1,
+};
+
+/**
+ * struct sdw_bus_params: Structure holding bus configuration
+ *
+ * @curr_bank: Current bank in use (BANK0/BANK1)
+ * @next_bank: Next bank to use (BANK0/BANK1). next_bank will always be
+ * set to !curr_bank
+ */
+struct sdw_bus_params {
+ enum sdw_reg_bank curr_bank;
+ enum sdw_reg_bank next_bank;
+};
+
+/**
+ * struct sdw_slave_ops: Slave driver callback ops
+ *
* @read_prop: Read Slave properties
* @interrupt_callback: Device interrupt notification (invoked in thread
* context)
@@ -482,6 +505,24 @@ struct sdw_transport_params {
unsigned int lane_ctrl;
};
+/**
+ * struct sdw_master_port_ops: Callback functions from bus to Master
+ * driver to set Master Data ports.
+ *
+ * @dpn_set_port_params: Set the Port parameters for the Master Port.
+ * Mandatory callback
+ * @dpn_set_port_transport_params: Set transport parameters for the Master
+ * Port. Mandatory callback
+ */
+struct sdw_master_port_ops {
+ int (*dpn_set_port_params)(struct sdw_bus *bus,
+ struct sdw_port_params *port_params,
+ unsigned int bank);
+ int (*dpn_set_port_transport_params)(struct sdw_bus *bus,
+ struct sdw_transport_params *transport_params,
+ enum sdw_reg_bank bank);
+};
+
struct sdw_msg;
/**
@@ -525,6 +566,8 @@ struct sdw_master_ops {
* @bus_lock: bus lock
* @msg_lock: message lock
* @ops: Master callback ops
+ * @port_ops: Master port callback ops
+ * @params: Current bus parameters
* @prop: Master properties
* @m_rt_list: List of Master instance of all stream(s) running on Bus. This
* is used to compute and program bus bandwidth, clock, frame shape,
@@ -540,6 +583,8 @@ struct sdw_bus {
struct mutex bus_lock;
struct mutex msg_lock;
const struct sdw_master_ops *ops;
+ const struct sdw_master_port_ops *port_ops;
+ struct sdw_bus_params params;
struct sdw_master_prop prop;
struct list_head m_rt_list;
struct sdw_defer defer_msg;