| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Pierre-Louis Bossart | 251 | 31.73% | 9 | 39.13% |
| Bard Liao | 190 | 24.02% | 1 | 4.35% |
| Vinod Koul | 171 | 21.62% | 3 | 13.04% |
| Sanyog Kale | 147 | 18.58% | 7 | 30.43% |
| Srinivas Kandagatla | 28 | 3.54% | 2 | 8.70% |
| Shreyas NC | 4 | 0.51% | 1 | 4.35% |
| Total | 791 | 23 |
/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */ /* Copyright(c) 2015-17 Intel Corporation. */ #ifndef __SDW_BUS_H #define __SDW_BUS_H #define DEFAULT_BANK_SWITCH_TIMEOUT 3000 #define DEFAULT_PROBE_TIMEOUT 2000 u64 sdw_dmi_override_adr(struct sdw_bus *bus, u64 addr); #if IS_ENABLED(CONFIG_ACPI) int sdw_acpi_find_slaves(struct sdw_bus *bus); #else static inline int sdw_acpi_find_slaves(struct sdw_bus *bus) { return -ENOTSUPP; } #endif int sdw_of_find_slaves(struct sdw_bus *bus); void sdw_extract_slave_id(struct sdw_bus *bus, u64 addr, struct sdw_slave_id *id); int sdw_slave_add(struct sdw_bus *bus, struct sdw_slave_id *id, struct fwnode_handle *fwnode); int sdw_master_device_add(struct sdw_bus *bus, struct device *parent, struct fwnode_handle *fwnode); int sdw_master_device_del(struct sdw_bus *bus); #ifdef CONFIG_DEBUG_FS void sdw_bus_debugfs_init(struct sdw_bus *bus); void sdw_bus_debugfs_exit(struct sdw_bus *bus); void sdw_slave_debugfs_init(struct sdw_slave *slave); void sdw_slave_debugfs_exit(struct sdw_slave *slave); void sdw_debugfs_init(void); void sdw_debugfs_exit(void); #else static inline void sdw_bus_debugfs_init(struct sdw_bus *bus) {} static inline void sdw_bus_debugfs_exit(struct sdw_bus *bus) {} static inline void sdw_slave_debugfs_init(struct sdw_slave *slave) {} static inline void sdw_slave_debugfs_exit(struct sdw_slave *slave) {} static inline void sdw_debugfs_init(void) {} static inline void sdw_debugfs_exit(void) {} #endif enum { SDW_MSG_FLAG_READ = 0, SDW_MSG_FLAG_WRITE, }; /** * struct sdw_msg - Message structure * @addr: Register address accessed in the Slave * @len: number of messages * @dev_num: Slave device number * @addr_page1: SCP address page 1 Slave register * @addr_page2: SCP address page 2 Slave register * @flags: transfer flags, indicate if xfer is read or write * @buf: message data buffer * @ssp_sync: Send message at SSP (Stream Synchronization Point) * @page: address requires paging */ struct sdw_msg { u16 addr; u16 len; u8 dev_num; u8 addr_page1; u8 addr_page2; u8 flags; u8 *buf; bool ssp_sync; bool page; }; #define SDW_DOUBLE_RATE_FACTOR 2 #define SDW_STRM_RATE_GROUPING 1 extern int sdw_rows[SDW_FRAME_ROWS]; extern int sdw_cols[SDW_FRAME_COLS]; int sdw_find_row_index(int row); int sdw_find_col_index(int col); /** * sdw_port_runtime: Runtime port parameters for Master or Slave * * @num: Port number. For audio streams, valid port number ranges from * [1,14] * @ch_mask: Channel mask * @transport_params: Transport parameters * @port_params: Port parameters * @port_node: List node for Master or Slave port_list * * SoundWire spec has no mention of ports for Master interface but the * concept is logically extended. */ struct sdw_port_runtime { int num; int ch_mask; struct sdw_transport_params transport_params; struct sdw_port_params port_params; struct list_head port_node; }; /** * sdw_slave_runtime: Runtime Stream parameters for Slave * * @slave: Slave handle * @direction: Data direction for Slave * @ch_count: Number of channels handled by the Slave for * this stream * @m_rt_node: sdw_master_runtime list node * @port_list: List of Slave Ports configured for this stream */ struct sdw_slave_runtime { struct sdw_slave *slave; enum sdw_data_direction direction; unsigned int ch_count; struct list_head m_rt_node; struct list_head port_list; }; /** * sdw_master_runtime: Runtime stream parameters for Master * * @bus: Bus handle * @stream: Stream runtime handle * @direction: Data direction for Master * @ch_count: Number of channels handled by the Master for * this stream, can be zero. * @slave_rt_list: Slave runtime list * @port_list: List of Master Ports configured for this stream, can be zero. * @stream_node: sdw_stream_runtime master_list node * @bus_node: sdw_bus m_rt_list node */ struct sdw_master_runtime { struct sdw_bus *bus; struct sdw_stream_runtime *stream; enum sdw_data_direction direction; unsigned int ch_count; struct list_head slave_rt_list; struct list_head port_list; struct list_head stream_node; struct list_head bus_node; }; struct sdw_dpn_prop *sdw_get_slave_dpn_prop(struct sdw_slave *slave, enum sdw_data_direction direction, unsigned int port_num); 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); #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, int grp_ctrl, int sample_int, int off1, int off2, int hstart, int hstop, int pack_mode, int lane_ctrl) { params->port_num = port_num; params->blk_grp_ctrl_valid = grp_ctrl_valid; params->blk_grp_ctrl = grp_ctrl; params->sample_interval = sample_int; params->offset1 = off1; params->offset2 = off2; params->hstart = hstart; params->hstop = hstop; params->blk_pkg_mode = pack_mode; params->lane_ctrl = lane_ctrl; } /* Fill port parameter data structure */ static inline void sdw_fill_port_params(struct sdw_port_params *params, int port_num, int bps, int flow_mode, int data_mode) { params->num = port_num; params->bps = bps; params->flow_mode = flow_mode; params->data_mode = data_mode; } /* broadcast read/write for tests */ int sdw_bread_no_pm_unlocked(struct sdw_bus *bus, u16 dev_num, u32 addr); int sdw_bwrite_no_pm_unlocked(struct sdw_bus *bus, u16 dev_num, u32 addr, u8 value); /* * At the moment we only track Master-initiated hw_reset. * Additional fields can be added as needed */ #define SDW_UNATTACH_REQUEST_MASTER_RESET BIT(0) 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); #endif /* __SDW_BUS_H */
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