diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-trans.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans.h | 89 |
1 files changed, 74 insertions, 15 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h index 87a230a7f4b6..2f79e54823c4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -122,6 +122,40 @@ #define INDEX_TO_SEQ(i) ((i) & 0xff) #define SEQ_RX_FRAME cpu_to_le16(0x8000) +/* + * those functions retrieve specific information from + * the id field in the iwl_host_cmd struct which contains + * the command id, the group id and the version of the command + * and vice versa +*/ +static inline u8 iwl_cmd_opcode(u32 cmdid) +{ + return cmdid & 0xFF; +} + +static inline u8 iwl_cmd_groupid(u32 cmdid) +{ + return ((cmdid & 0xFF00) >> 8); +} + +static inline u8 iwl_cmd_version(u32 cmdid) +{ + return ((cmdid & 0xFF0000) >> 16); +} + +static inline u32 iwl_cmd_id(u8 opcode, u8 groupid, u8 version) +{ + return opcode + (groupid << 8) + (version << 16); +} + +/* make u16 wide id out of u8 group and opcode */ +#define WIDE_ID(grp, opcode) ((grp << 8) | opcode) + +/* due to the conversion, this group is special; new groups + * should be defined in the appropriate fw-api header files + */ +#define IWL_ALWAYS_LONG_GROUP 1 + /** * struct iwl_cmd_header * @@ -130,7 +164,7 @@ */ struct iwl_cmd_header { u8 cmd; /* Command ID: REPLY_RXON, etc. */ - u8 flags; /* 0:5 reserved, 6 abort, 7 internal */ + u8 group_id; /* * The driver sets up the sequence number to values of its choosing. * uCode does not use this value, but passes it back to the driver @@ -154,9 +188,22 @@ struct iwl_cmd_header { __le16 sequence; } __packed; -/* iwl_cmd_header flags value */ -#define IWL_CMD_FAILED_MSK 0x40 - +/** + * struct iwl_cmd_header_wide + * + * This header format appears in the beginning of each command sent from the + * driver, and each response/notification received from uCode. + * this is the wide version that contains more information about the command + * like length, version and command type + */ +struct iwl_cmd_header_wide { + u8 cmd; + u8 group_id; + __le16 sequence; + __le16 length; + u8 reserved; + u8 version; +} __packed; #define FH_RSCSR_FRAME_SIZE_MSK 0x00003FFF /* bits 0-13 */ #define FH_RSCSR_FRAME_INVALID 0x55550000 @@ -222,8 +269,18 @@ enum CMD_MODE { * aren't fully copied and use other TFD space. */ struct iwl_device_cmd { - struct iwl_cmd_header hdr; /* uCode API */ - u8 payload[DEF_CMD_PAYLOAD_SIZE]; + union { + struct { + struct iwl_cmd_header hdr; /* uCode API */ + u8 payload[DEF_CMD_PAYLOAD_SIZE]; + }; + struct { + struct iwl_cmd_header_wide hdr_wide; + u8 payload_wide[DEF_CMD_PAYLOAD_SIZE - + sizeof(struct iwl_cmd_header_wide) + + sizeof(struct iwl_cmd_header)]; + }; + }; } __packed; #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd)) @@ -261,24 +318,22 @@ enum iwl_hcmd_dataflag { * @resp_pkt: response packet, if %CMD_WANT_SKB was set * @_rx_page_order: (internally used to free response packet) * @_rx_page_addr: (internally used to free response packet) - * @handler_status: return value of the handler of the command - * (put in setup_rx_handlers) - valid for SYNC mode only * @flags: can be CMD_* * @len: array of the lengths of the chunks in data * @dataflags: IWL_HCMD_DFL_* - * @id: id of the host command + * @id: command id of the host command, for wide commands encoding the + * version and group as well */ struct iwl_host_cmd { const void *data[IWL_MAX_CMD_TBS_PER_TFD]; struct iwl_rx_packet *resp_pkt; unsigned long _rx_page_addr; u32 _rx_page_order; - int handler_status; u32 flags; + u32 id; u16 len[IWL_MAX_CMD_TBS_PER_TFD]; u8 dataflags[IWL_MAX_CMD_TBS_PER_TFD]; - u8 id; }; static inline void iwl_free_resp(struct iwl_host_cmd *cmd) @@ -379,6 +434,7 @@ enum iwl_trans_status { * @bc_table_dword: set to true if the BC table expects the byte count to be * in DWORD (as opposed to bytes) * @scd_set_active: should the transport configure the SCD for HCMD queue + * @wide_cmd_header: firmware supports wide host command header * @command_names: array of command names, must be 256 entries * (one for each command); for debugging only * @sdio_adma_addr: the default address to set for the ADMA in SDIO mode until @@ -396,6 +452,7 @@ struct iwl_trans_config { bool rx_buf_size_8k; bool bc_table_dword; bool scd_set_active; + bool wide_cmd_header; const char *const *command_names; u32 sdio_adma_addr; @@ -544,7 +601,7 @@ struct iwl_trans_ops { u32 value); void (*ref)(struct iwl_trans *trans); void (*unref)(struct iwl_trans *trans); - void (*suspend)(struct iwl_trans *trans); + int (*suspend)(struct iwl_trans *trans); void (*resume)(struct iwl_trans *trans); struct iwl_trans_dump_data *(*dump_data)(struct iwl_trans *trans); @@ -753,10 +810,12 @@ static inline void iwl_trans_unref(struct iwl_trans *trans) trans->ops->unref(trans); } -static inline void iwl_trans_suspend(struct iwl_trans *trans) +static inline int iwl_trans_suspend(struct iwl_trans *trans) { - if (trans->ops->suspend) - trans->ops->suspend(trans); + if (!trans->ops->suspend) + return 0; + + return trans->ops->suspend(trans); } static inline void iwl_trans_resume(struct iwl_trans *trans) |