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authorJohannes Berg <johannes.berg@intel.com>2013-01-22 20:41:58 +0100
committerJohannes Berg <johannes.berg@intel.com>2013-03-06 16:47:51 +0100
commitf0c2646af4f7432f7414e1162377cada06c3c747 (patch)
treee3fa41b5a8e61d795072e89b040b099117ce38ea /drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
parentba5295f8b2c789275cc6ffb0a45e50a8aa3a5c84 (diff)
iwlwifi: mvm: implement remote wake
With remote wake, the firmware creates a TCP connection and sends some configurable data on it, until a special TCP data packet from the server is received that triggers a wakeup. The configuration is a bit tricky because it is based on packet pattern matching but this is hidden in the driver and the exposed API in cfg80211 is just based on the required TCP connection parameters. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h51
1 files changed, 50 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
index a442ee11a062..51e015d1dfb2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
@@ -258,7 +258,7 @@ enum iwl_wowlan_wakeup_reason {
IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE = BIT(8),
IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS = BIT(9),
IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE = BIT(10),
- IWL_WOWLAN_WAKEUP_BY_REM_WAKE_TCP_EXTERNAL = BIT(11),
+ /* BIT(11) reserved */
IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET = BIT(12),
}; /* WOWLAN_WAKE_UP_REASON_API_E_VER_2 */
@@ -277,6 +277,55 @@ struct iwl_wowlan_status {
u8 wake_packet[]; /* can be truncated from _length to _bufsize */
} __packed; /* WOWLAN_STATUSES_API_S_VER_4 */
+#define IWL_WOWLAN_TCP_MAX_PACKET_LEN 64
+#define IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN 128
+#define IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS 2048
+
+struct iwl_tcp_packet_info {
+ __le16 tcp_pseudo_header_checksum;
+ __le16 tcp_payload_length;
+} __packed; /* TCP_PACKET_INFO_API_S_VER_2 */
+
+struct iwl_tcp_packet {
+ struct iwl_tcp_packet_info info;
+ u8 rx_mask[IWL_WOWLAN_MAX_PATTERN_LEN / 8];
+ u8 data[IWL_WOWLAN_TCP_MAX_PACKET_LEN];
+} __packed; /* TCP_PROTOCOL_PACKET_API_S_VER_1 */
+
+struct iwl_remote_wake_packet {
+ struct iwl_tcp_packet_info info;
+ u8 rx_mask[IWL_WOWLAN_MAX_PATTERN_LEN / 8];
+ u8 data[IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN];
+} __packed; /* TCP_PROTOCOL_PACKET_API_S_VER_1 */
+
+struct iwl_wowlan_remote_wake_config {
+ __le32 connection_max_time; /* unused */
+ /* TCP_PROTOCOL_CONFIG_API_S_VER_1 */
+ u8 max_syn_retries;
+ u8 max_data_retries;
+ u8 tcp_syn_ack_timeout;
+ u8 tcp_ack_timeout;
+
+ struct iwl_tcp_packet syn_tx;
+ struct iwl_tcp_packet synack_rx;
+ struct iwl_tcp_packet keepalive_ack_rx;
+ struct iwl_tcp_packet fin_tx;
+
+ struct iwl_remote_wake_packet keepalive_tx;
+ struct iwl_remote_wake_packet wake_rx;
+
+ /* REMOTE_WAKE_OFFSET_INFO_API_S_VER_1 */
+ u8 sequence_number_offset;
+ u8 sequence_number_length;
+ u8 token_offset;
+ u8 token_length;
+ /* REMOTE_WAKE_PROTOCOL_PARAMS_API_S_VER_1 */
+ __le32 initial_sequence_number;
+ __le16 keepalive_interval;
+ __le16 num_tokens;
+ u8 tokens[IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS];
+} __packed; /* REMOTE_WAKE_CONFIG_API_S_VER_2 */
+
/* TODO: NetDetect API */
#endif /* __fw_api_d3_h__ */