diff options
Diffstat (limited to 'drivers/soundwire/bus.h')
| -rw-r--r-- | drivers/soundwire/bus.h | 44 |
1 files changed, 31 insertions, 13 deletions
diff --git a/drivers/soundwire/bus.h b/drivers/soundwire/bus.h index 7631ef5e71fb..02651fbb683a 100644 --- a/drivers/soundwire/bus.h +++ b/drivers/soundwire/bus.h @@ -72,6 +72,24 @@ struct sdw_msg { bool page; }; +/** + * struct sdw_btp_msg - Message structure + * @addr: Start Register address accessed in the Slave + * @len: number of bytes to transfer. More than 64Kb can be transferred + * but a practical limit of SDW_BPT_MSG_MAX_BYTES is enforced. + * @dev_num: Slave device number + * @flags: transfer flags, indicate if xfer is read or write + * @buf: message data buffer (filled by host for write, filled + * by Peripheral hardware for reads) + */ +struct sdw_bpt_msg { + u32 addr; + u32 len; + u8 dev_num; + u8 flags; + u8 *buf; +}; + #define SDW_DOUBLE_RATE_FACTOR 2 #define SDW_STRM_RATE_GROUPING 1 @@ -90,6 +108,7 @@ int sdw_find_col_index(int col); * @transport_params: Transport parameters * @port_params: Port parameters * @port_node: List node for Master or Slave port_list + * @lane: Which lane is used * * SoundWire spec has no mention of ports for Master interface but the * concept is logically extended. @@ -100,6 +119,7 @@ struct sdw_port_runtime { struct sdw_transport_params transport_params; struct sdw_port_params port_params; struct list_head port_node; + unsigned int lane; }; /** @@ -144,6 +164,14 @@ struct sdw_master_runtime { struct list_head bus_node; }; +struct sdw_transport_data { + int hstart; + int hstop; + int block_offset; + int sub_block_offset; + unsigned int lane; +}; + struct sdw_dpn_prop *sdw_get_slave_dpn_prop(struct sdw_slave *slave, enum sdw_data_direction direction, unsigned int port_num); @@ -151,25 +179,13 @@ int sdw_configure_dpn_intr(struct sdw_slave *slave, int port, bool enable, int mask); int sdw_transfer(struct sdw_bus *bus, struct sdw_msg *msg); -int sdw_transfer_defer(struct sdw_bus *bus, struct sdw_msg *msg, - struct sdw_defer *defer); +int sdw_transfer_defer(struct sdw_bus *bus, struct sdw_msg *msg); #define SDW_READ_INTR_CLEAR_RETRY 10 int sdw_fill_msg(struct sdw_msg *msg, struct sdw_slave *slave, u32 addr, size_t count, u16 dev_num, u8 flags, u8 *buf); -/* Retrieve and return channel count from channel mask */ -static inline int sdw_ch_mask_to_ch(int ch_mask) -{ - int c = 0; - - for (c = 0; ch_mask; ch_mask >>= 1) - c += ch_mask & 1; - - return c; -} - /* Fill transport parameter data structure */ static inline void sdw_fill_xport_params(struct sdw_transport_params *params, int port_num, bool grp_ctrl_valid, @@ -213,5 +229,7 @@ int sdw_bwrite_no_pm_unlocked(struct sdw_bus *bus, u16 dev_num, u32 addr, u8 val void sdw_clear_slave_status(struct sdw_bus *bus, u32 request); int sdw_slave_modalias(const struct sdw_slave *slave, char *buf, size_t size); +void sdw_compute_slave_ports(struct sdw_master_runtime *m_rt, + struct sdw_transport_data *t_data); #endif /* __SDW_BUS_H */ |