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Diffstat (limited to 'include/linux/soundwire/sdw.h')
-rw-r--r--include/linux/soundwire/sdw.h48
1 files changed, 40 insertions, 8 deletions
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index 76052f12c9f7..41cc1192f9aa 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -5,6 +5,7 @@
#define __SOUNDWIRE_H
#include <linux/mod_devicetable.h>
+#include <linux/bitfield.h>
struct sdw_bus;
struct sdw_slave;
@@ -38,7 +39,8 @@ struct sdw_slave;
#define SDW_FRAME_CTRL_BITS 48
#define SDW_MAX_DEVICES 11
-#define SDW_VALID_PORT_RANGE(n) ((n) <= 14 && (n) >= 1)
+#define SDW_MAX_PORTS 15
+#define SDW_VALID_PORT_RANGE(n) ((n) < SDW_MAX_PORTS && (n) >= 1)
enum {
SDW_PORT_DIRN_SINK = 0,
@@ -355,6 +357,8 @@ struct sdw_dpn_prop {
* @dp0_prop: Data Port 0 properties
* @src_dpn_prop: Source Data Port N properties
* @sink_dpn_prop: Sink Data Port N properties
+ * @scp_int1_mask: SCP_INT1_MASK desired settings
+ * @quirks: bitmask identifying deltas from the MIPI specification
*/
struct sdw_slave_prop {
u32 mipi_revision;
@@ -376,8 +380,12 @@ struct sdw_slave_prop {
struct sdw_dp0_prop *dp0_prop;
struct sdw_dpn_prop *src_dpn_prop;
struct sdw_dpn_prop *sink_dpn_prop;
+ u8 scp_int1_mask;
+ u32 quirks;
};
+#define SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY BIT(0)
+
/**
* struct sdw_master_prop - Master properties
* @revision: MIPI spec version of the implementation
@@ -455,13 +463,19 @@ struct sdw_slave_id {
*
* The MIPI DisCo for SoundWire defines in addition the link_id as bits 51:48
*/
+#define SDW_DISCO_LINK_ID_MASK GENMASK_ULL(51, 48)
+#define SDW_VERSION_MASK GENMASK_ULL(47, 44)
+#define SDW_UNIQUE_ID_MASK GENMASK_ULL(43, 40)
+#define SDW_MFG_ID_MASK GENMASK_ULL(39, 24)
+#define SDW_PART_ID_MASK GENMASK_ULL(23, 8)
+#define SDW_CLASS_ID_MASK GENMASK_ULL(7, 0)
-#define SDW_DISCO_LINK_ID(adr) (((adr) >> 48) & GENMASK(3, 0))
-#define SDW_VERSION(adr) (((adr) >> 44) & GENMASK(3, 0))
-#define SDW_UNIQUE_ID(adr) (((adr) >> 40) & GENMASK(3, 0))
-#define SDW_MFG_ID(adr) (((adr) >> 24) & GENMASK(15, 0))
-#define SDW_PART_ID(adr) (((adr) >> 8) & GENMASK(15, 0))
-#define SDW_CLASS_ID(adr) ((adr) & GENMASK(7, 0))
+#define SDW_DISCO_LINK_ID(addr) FIELD_GET(SDW_DISCO_LINK_ID_MASK, addr)
+#define SDW_VERSION(addr) FIELD_GET(SDW_VERSION_MASK, addr)
+#define SDW_UNIQUE_ID(addr) FIELD_GET(SDW_UNIQUE_ID_MASK, addr)
+#define SDW_MFG_ID(addr) FIELD_GET(SDW_MFG_ID_MASK, addr)
+#define SDW_PART_ID(addr) FIELD_GET(SDW_PART_ID_MASK, addr)
+#define SDW_CLASS_ID(addr) FIELD_GET(SDW_CLASS_ID_MASK, addr)
/**
* struct sdw_slave_intr_status - Slave interrupt status
@@ -540,6 +554,10 @@ enum sdw_port_prep_ops {
* @bandwidth: Current bandwidth
* @col: Active columns
* @row: Active rows
+ * @s_data_mode: NORMAL, STATIC or PRBS mode for all Slave ports
+ * @m_data_mode: NORMAL, STATIC or PRBS mode for all Master ports. The value
+ * should be the same to detect transmission issues, but can be different to
+ * test the interrupt reports
*/
struct sdw_bus_params {
enum sdw_reg_bank curr_bank;
@@ -549,6 +567,8 @@ struct sdw_bus_params {
unsigned int bandwidth;
unsigned int col;
unsigned int row;
+ int s_data_mode;
+ int m_data_mode;
};
/**
@@ -606,6 +626,8 @@ struct sdw_slave_ops {
* between the Master suspending and the codec resuming, and make sure that
* when the Master triggered a reset the Slave is properly enumerated and
* initialized
+ * @first_interrupt_done: status flag tracking if the interrupt handling
+ * for a Slave happens for the first time after enumeration
*/
struct sdw_slave {
struct sdw_slave_id id;
@@ -618,7 +640,7 @@ struct sdw_slave {
struct dentry *debugfs;
#endif
struct list_head node;
- struct completion *port_ready;
+ struct completion port_ready[SDW_MAX_PORTS];
enum sdw_clk_stop_mode curr_clk_stop_mode;
u16 dev_num;
u16 dev_num_sticky;
@@ -627,6 +649,7 @@ struct sdw_slave {
struct completion enumeration_complete;
struct completion initialization_complete;
u32 unattach_request;
+ bool first_interrupt_done;
};
#define dev_to_sdw_dev(_dev) container_of(_dev, struct sdw_slave, dev)
@@ -827,6 +850,11 @@ struct sdw_master_ops {
* @multi_link: Store bus property that indicates if multi links
* are supported. This flag is populated by drivers after reading
* appropriate firmware (ACPI/DT).
+ * @hw_sync_min_links: Number of links used by a stream above which
+ * hardware-based synchronization is required. This value is only
+ * meaningful if multi_link is set. If set to 1, hardware-based
+ * synchronization will be used even if a stream only uses a single
+ * SoundWire segment.
*/
struct sdw_bus {
struct device *dev;
@@ -850,6 +878,7 @@ struct sdw_bus {
unsigned int clk_stop_timeout;
u32 bank_switch_timeout;
bool multi_link;
+ int hw_sync_min_links;
};
int sdw_bus_master_add(struct sdw_bus *bus, struct device *parent,
@@ -941,6 +970,9 @@ struct sdw_stream_runtime {
struct sdw_stream_runtime *sdw_alloc_stream(const char *stream_name);
void sdw_release_stream(struct sdw_stream_runtime *stream);
+
+int sdw_compute_params(struct sdw_bus *bus);
+
int sdw_stream_add_master(struct sdw_bus *bus,
struct sdw_stream_config *stream_config,
struct sdw_port_config *port_config,