diff options
Diffstat (limited to 'include/linux/soundwire/sdw.h')
| -rw-r--r-- | include/linux/soundwire/sdw.h | 48 |
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, |