diff options
author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2011-09-06 09:31:19 -0700 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2011-09-14 13:56:37 -0400 |
commit | 522376d206da66cecc90929134ad70c0446e874b (patch) | |
tree | dd475fa28731670f5810ca723c085fb2ba495344 /drivers/net/wireless/iwlwifi/iwl-trans.h | |
parent | 3e10caeb55b2693b38f1f80c67c79d918fc42e42 (diff) |
iwlagn: clean up of transport layer
Move a few declarations needed by the transport layer to iwl-shared.h
Move iwl_cmd_meta, iwl_tx_queue and friends to the internal transport
header file.
Move iwl_device_cmd iwl_host_cmd and friends to iwl-trans.h since
these structs are used in the API to the transport layer.
Move get_cmd_string to the upper layer with a declaration in
iwl-shared.h.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-trans.h')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans.h | 66 |
1 files changed, 63 insertions, 3 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h index 7a2daa886df..71a6fb05356 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -73,10 +73,70 @@ * layer */ struct iwl_priv; -struct iwl_rxon_context; -struct iwl_host_cmd; struct iwl_shared; -struct iwl_device_cmd; + +#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) +#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ) +#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4) + +enum { + CMD_SYNC = 0, + CMD_ASYNC = BIT(0), + CMD_WANT_SKB = BIT(1), + CMD_ON_DEMAND = BIT(2), +}; + +#define DEF_CMD_PAYLOAD_SIZE 320 + +/** + * struct iwl_device_cmd + * + * For allocation of the command and tx queues, this establishes the overall + * size of the largest command we send to uCode, except for commands that + * aren't fully copied and use other TFD space. + */ +struct iwl_device_cmd { + struct iwl_cmd_header hdr; /* uCode API */ + union { + u32 flags; + u8 val8; + u16 val16; + u32 val32; + struct iwl_tx_cmd tx; + struct iwl6000_channel_switch_cmd chswitch; + u8 payload[DEF_CMD_PAYLOAD_SIZE]; + } __packed cmd; +} __packed; + +#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd)) + +#define IWL_MAX_CMD_TFDS 2 + +enum iwl_hcmd_dataflag { + IWL_HCMD_DFL_NOCOPY = BIT(0), +}; + +/** + * struct iwl_host_cmd - Host command to the uCode + * @data: array of chunks that composes the data of the host command + * @reply_page: pointer to the page that holds the response to the host command + * @callback: + * @flags: can be CMD_* note CMD_WANT_SKB is incompatible withe CMD_ASYNC + * @len: array of the lenths of the chunks in data + * @dataflags: + * @id: id of the host command + */ +struct iwl_host_cmd { + const void *data[IWL_MAX_CMD_TFDS]; + unsigned long reply_page; + void (*callback)(struct iwl_shared *shrd, + struct iwl_device_cmd *cmd, + struct iwl_rx_packet *pkt); + u32 flags; + u16 len[IWL_MAX_CMD_TFDS]; + u8 dataflags[IWL_MAX_CMD_TFDS]; + u8 id; +}; /** * struct iwl_trans_ops - transport specific operations |