2 * Marvell Wireless LAN device driver: utility functions
4 * Copyright (C) 2011, Marvell International Ltd.
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
29 * Firmware initialization complete callback handler.
31 * This function wakes up the function waiting on the init
32 * wait queue for the firmware initialization to complete.
34 int mwifiex_init_fw_complete(struct mwifiex_adapter
*adapter
)
37 adapter
->init_wait_q_woken
= true;
38 wake_up_interruptible(&adapter
->init_wait_q
);
43 * Firmware shutdown complete callback handler.
45 * This function sets the hardware status to not ready and wakes up
46 * the function waiting on the init wait queue for the firmware
47 * shutdown to complete.
49 int mwifiex_shutdown_fw_complete(struct mwifiex_adapter
*adapter
)
51 adapter
->hw_status
= MWIFIEX_HW_STATUS_NOT_READY
;
52 adapter
->init_wait_q_woken
= true;
53 wake_up_interruptible(&adapter
->init_wait_q
);
58 * This function sends init/shutdown command
61 int mwifiex_init_shutdown_fw(struct mwifiex_private
*priv
,
62 u32 func_init_shutdown
)
67 if (func_init_shutdown
== MWIFIEX_FUNC_INIT
) {
68 cmd
= HostCmd_CMD_FUNC_INIT
;
69 } else if (func_init_shutdown
== MWIFIEX_FUNC_SHUTDOWN
) {
70 cmd
= HostCmd_CMD_FUNC_SHUTDOWN
;
72 dev_err(priv
->adapter
->dev
, "unsupported parameter\n");
76 /* Send command to firmware */
77 ret
= mwifiex_send_cmd_sync(priv
, cmd
, HostCmd_ACT_GEN_SET
, 0, NULL
);
81 EXPORT_SYMBOL_GPL(mwifiex_init_shutdown_fw
);
84 * IOCTL request handler to set/get debug information.
86 * This function collates/sets the information from/to different driver
89 int mwifiex_get_debug_info(struct mwifiex_private
*priv
,
90 struct mwifiex_debug_info
*info
)
92 struct mwifiex_adapter
*adapter
= priv
->adapter
;
95 memcpy(info
->packets_out
,
96 priv
->wmm
.packets_out
,
97 sizeof(priv
->wmm
.packets_out
));
98 info
->max_tx_buf_size
= (u32
) adapter
->max_tx_buf_size
;
99 info
->tx_buf_size
= (u32
) adapter
->tx_buf_size
;
100 info
->rx_tbl_num
= mwifiex_get_rx_reorder_tbl(
102 info
->tx_tbl_num
= mwifiex_get_tx_ba_stream_tbl(
104 info
->ps_mode
= adapter
->ps_mode
;
105 info
->ps_state
= adapter
->ps_state
;
106 info
->is_deep_sleep
= adapter
->is_deep_sleep
;
107 info
->pm_wakeup_card_req
= adapter
->pm_wakeup_card_req
;
108 info
->pm_wakeup_fw_try
= adapter
->pm_wakeup_fw_try
;
109 info
->is_hs_configured
= adapter
->is_hs_configured
;
110 info
->hs_activated
= adapter
->hs_activated
;
111 info
->num_cmd_host_to_card_failure
112 = adapter
->dbg
.num_cmd_host_to_card_failure
;
113 info
->num_cmd_sleep_cfm_host_to_card_failure
114 = adapter
->dbg
.num_cmd_sleep_cfm_host_to_card_failure
;
115 info
->num_tx_host_to_card_failure
116 = adapter
->dbg
.num_tx_host_to_card_failure
;
117 info
->num_event_deauth
= adapter
->dbg
.num_event_deauth
;
118 info
->num_event_disassoc
= adapter
->dbg
.num_event_disassoc
;
119 info
->num_event_link_lost
= adapter
->dbg
.num_event_link_lost
;
120 info
->num_cmd_deauth
= adapter
->dbg
.num_cmd_deauth
;
121 info
->num_cmd_assoc_success
=
122 adapter
->dbg
.num_cmd_assoc_success
;
123 info
->num_cmd_assoc_failure
=
124 adapter
->dbg
.num_cmd_assoc_failure
;
125 info
->num_tx_timeout
= adapter
->dbg
.num_tx_timeout
;
126 info
->num_cmd_timeout
= adapter
->dbg
.num_cmd_timeout
;
127 info
->timeout_cmd_id
= adapter
->dbg
.timeout_cmd_id
;
128 info
->timeout_cmd_act
= adapter
->dbg
.timeout_cmd_act
;
129 memcpy(info
->last_cmd_id
, adapter
->dbg
.last_cmd_id
,
130 sizeof(adapter
->dbg
.last_cmd_id
));
131 memcpy(info
->last_cmd_act
, adapter
->dbg
.last_cmd_act
,
132 sizeof(adapter
->dbg
.last_cmd_act
));
133 info
->last_cmd_index
= adapter
->dbg
.last_cmd_index
;
134 memcpy(info
->last_cmd_resp_id
, adapter
->dbg
.last_cmd_resp_id
,
135 sizeof(adapter
->dbg
.last_cmd_resp_id
));
136 info
->last_cmd_resp_index
= adapter
->dbg
.last_cmd_resp_index
;
137 memcpy(info
->last_event
, adapter
->dbg
.last_event
,
138 sizeof(adapter
->dbg
.last_event
));
139 info
->last_event_index
= adapter
->dbg
.last_event_index
;
140 info
->data_sent
= adapter
->data_sent
;
141 info
->cmd_sent
= adapter
->cmd_sent
;
142 info
->cmd_resp_received
= adapter
->cmd_resp_received
;
149 * This function processes the received packet before sending it to the
152 * It extracts the SKB from the received buffer and sends it to kernel.
153 * In case the received buffer does not contain the data in SKB format,
154 * the function creates a blank SKB, fills it with the data from the
155 * received buffer and then sends this new SKB to the kernel.
157 int mwifiex_recv_packet(struct mwifiex_adapter
*adapter
, struct sk_buff
*skb
)
159 struct mwifiex_rxinfo
*rx_info
= NULL
;
160 struct mwifiex_private
*priv
= NULL
;
165 rx_info
= MWIFIEX_SKB_RXCB(skb
);
166 priv
= mwifiex_bss_index_to_priv(adapter
, rx_info
->bss_index
);
170 skb
->dev
= priv
->netdev
;
171 skb
->protocol
= eth_type_trans(skb
, priv
->netdev
);
172 skb
->ip_summed
= CHECKSUM_NONE
;
173 priv
->stats
.rx_bytes
+= skb
->len
;
174 priv
->stats
.rx_packets
++;
184 * Receive packet completion callback handler.
186 * This function updates the statistics and frees the buffer SKB.
188 int mwifiex_recv_complete(struct mwifiex_adapter
*adapter
,
189 struct sk_buff
*skb
, int status
)
191 struct mwifiex_private
*priv
= NULL
;
192 struct mwifiex_rxinfo
*rx_info
= NULL
;
197 rx_info
= MWIFIEX_SKB_RXCB(skb
);
198 priv
= mwifiex_bss_index_to_priv(adapter
, rx_info
->bss_index
);
200 if (priv
&& (status
== -1))
201 priv
->stats
.rx_dropped
++;
203 dev_kfree_skb_any(skb
);
209 * IOCTL completion callback handler.
211 * This function is called when a pending IOCTL is completed.
213 * If work queue support is enabled, the function wakes up the
214 * corresponding waiting function. Otherwise, it processes the
215 * IOCTL response and frees the response buffer.
217 int mwifiex_complete_cmd(struct mwifiex_adapter
*adapter
)
219 atomic_dec(&adapter
->cmd_pending
);
220 dev_dbg(adapter
->dev
, "cmd completed: status=%d\n",
221 adapter
->cmd_wait_q
.status
);
223 adapter
->cmd_wait_q
.condition
= true;
225 if (adapter
->cmd_wait_q
.status
== -ETIMEDOUT
)
226 dev_err(adapter
->dev
, "cmd timeout\n");
228 wake_up_interruptible(&adapter
->cmd_wait_q
.wait
);