2 * This file contains the initialization for FW and HW
4 #include <linux/firmware.h>
14 * @brief This function checks the validity of Boot2/FW image.
16 * @param data pointer to image
20 static int check_fwfile_format(u8 *data, u32 totlen)
23 u32 blksize, offset, len;
31 blksize = *(u32*)(data + offsetof(struct fwheader, datalength));
33 case FW_HAS_DATA_TO_RECV:
34 offset = sizeof(struct fwheader) + blksize;
40 case FW_HAS_LAST_BLOCK:
51 lbs_pr_err("firmware file format check FAIL\n");
53 lbs_deb_fw("firmware file format check PASS\n");
59 * @brief This function downloads firmware image, gets
60 * HW spec from firmware and set basic parameters to
63 * @param priv A pointer to wlan_private structure
66 static int wlan_setup_station_hw(wlan_private * priv, char *fw_name)
69 wlan_adapter *adapter = priv->adapter;
71 lbs_deb_enter(LBS_DEB_FW);
73 if ((ret = request_firmware(&priv->firmware, fw_name,
74 priv->hotplug_device)) < 0) {
75 lbs_pr_err("request_firmware() failed with %#x\n",
77 lbs_pr_err("firmware %s not found\n", fw_name);
81 if(check_fwfile_format(priv->firmware->data, priv->firmware->size)) {
82 release_firmware(priv->firmware);
86 ret = priv->hw_prog_firmware(priv);
88 release_firmware(priv->firmware);
91 lbs_deb_fw("bootloader in invalid state\n");
97 * Read MAC address from HW
99 memset(adapter->current_addr, 0xff, ETH_ALEN);
101 ret = libertas_prepare_and_send_command(priv, cmd_get_hw_spec,
102 0, cmd_option_waitforrsp, 0, NULL);
109 libertas_set_mac_packet_filter(priv);
111 /* Get the supported Data rates */
112 ret = libertas_prepare_and_send_command(priv, cmd_802_11_data_rate,
114 cmd_option_waitforrsp, 0, NULL);
123 lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
127 static int wlan_allocate_adapter(wlan_private * priv)
130 wlan_adapter *adapter = priv->adapter;
132 /* Allocate buffer to store the BSSID list */
133 bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
134 adapter->networks = kzalloc(bufsize, GFP_KERNEL);
135 if (!adapter->networks) {
136 lbs_pr_err("Out of memory allocating beacons\n");
137 libertas_free_adapter(priv);
141 /* Allocate the command buffers */
142 libertas_allocate_cmd_buffer(priv);
144 memset(&adapter->libertas_ps_confirm_sleep, 0, sizeof(struct PS_CMD_ConfirmSleep));
145 adapter->libertas_ps_confirm_sleep.seqnum = cpu_to_le16(++adapter->seqnum);
146 adapter->libertas_ps_confirm_sleep.command =
147 cpu_to_le16(cmd_802_11_ps_mode);
148 adapter->libertas_ps_confirm_sleep.size =
149 cpu_to_le16(sizeof(struct PS_CMD_ConfirmSleep));
150 adapter->libertas_ps_confirm_sleep.result = 0;
151 adapter->libertas_ps_confirm_sleep.action =
152 cpu_to_le16(cmd_subcmd_sleep_confirmed);
157 static void wlan_init_adapter(wlan_private * priv)
159 wlan_adapter *adapter = priv->adapter;
162 adapter->scanprobes = 0;
164 adapter->bcn_avg_factor = DEFAULT_BCN_AVG_FACTOR;
165 adapter->data_avg_factor = DEFAULT_DATA_AVG_FACTOR;
168 adapter->atimwindow = 0;
170 adapter->connect_status = libertas_disconnected;
171 memset(adapter->current_addr, 0xff, ETH_ALEN);
174 adapter->scantype = cmd_scan_type_active;
177 adapter->scanmode = cmd_bss_type_any;
179 /* 802.11 specific */
180 adapter->secinfo.wep_enabled = 0;
181 for (i = 0; i < sizeof(adapter->wep_keys) / sizeof(adapter->wep_keys[0]);
183 memset(&adapter->wep_keys[i], 0, sizeof(struct WLAN_802_11_KEY));
184 adapter->wep_tx_keyidx = 0;
185 adapter->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
186 adapter->mode = IW_MODE_INFRA;
188 adapter->pending_assoc_req = NULL;
189 adapter->in_progress_assoc_req = NULL;
191 /* Initialize scan result lists */
192 INIT_LIST_HEAD(&adapter->network_free_list);
193 INIT_LIST_HEAD(&adapter->network_list);
194 for (i = 0; i < MAX_NETWORK_COUNT; i++) {
195 list_add_tail(&adapter->networks[i].list,
196 &adapter->network_free_list);
199 mutex_init(&adapter->lock);
201 adapter->prescan = 1;
203 memset(&adapter->curbssparams, 0, sizeof(adapter->curbssparams));
204 adapter->curbssparams.channel = DEFAULT_AD_HOC_CHANNEL;
206 /* PnP and power profile */
207 adapter->surpriseremoved = 0;
209 adapter->currentpacketfilter =
210 cmd_act_mac_rx_on | cmd_act_mac_tx_on;
212 adapter->radioon = RADIO_ON;
213 adapter->txantenna = RF_ANTENNA_2;
214 adapter->rxantenna = RF_ANTENNA_AUTO;
216 adapter->is_datarate_auto = 1;
217 adapter->beaconperiod = MRVDRV_BEACON_INTERVAL;
219 // set default value of capinfo.
220 #define SHORT_PREAMBLE_ALLOWED 1
221 memset(&adapter->capinfo, 0, sizeof(adapter->capinfo));
222 adapter->capinfo.shortpreamble = SHORT_PREAMBLE_ALLOWED;
224 adapter->psmode = wlan802_11powermodecam;
225 adapter->multipledtim = MRVDRV_DEFAULT_MULTIPLE_DTIM;
227 adapter->listeninterval = MRVDRV_DEFAULT_LISTEN_INTERVAL;
229 adapter->psstate = PS_STATE_FULL_POWER;
230 adapter->needtowakeup = 0;
231 adapter->locallisteninterval = 0; /* default value in firmware will be used */
233 adapter->datarate = 0; // Initially indicate the rate as auto
235 adapter->adhoc_grate_enabled = 0;
237 adapter->intcounter = 0;
239 adapter->currenttxskb = NULL;
240 adapter->pkttxctrl = 0;
242 memset(&adapter->tx_queue_ps, 0, NR_TX_QUEUE*sizeof(struct sk_buff*));
243 adapter->tx_queue_idx = 0;
244 spin_lock_init(&adapter->txqueue_lock);
249 static void command_timer_fn(unsigned long data);
251 int libertas_init_fw(wlan_private * priv, char *fw_name)
254 wlan_adapter *adapter = priv->adapter;
256 lbs_deb_enter(LBS_DEB_FW);
258 /* Allocate adapter structure */
259 if ((ret = wlan_allocate_adapter(priv)) != 0)
262 /* init adapter structure */
263 wlan_init_adapter(priv);
265 /* init timer etc. */
266 setup_timer(&adapter->command_timer, command_timer_fn,
267 (unsigned long)priv);
269 /* download fimrware etc. */
270 if ((ret = wlan_setup_station_hw(priv, fw_name)) != 0) {
271 del_timer_sync(&adapter->command_timer);
276 libertas_init_11d(priv);
280 lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
284 void libertas_free_adapter(wlan_private * priv)
286 wlan_adapter *adapter = priv->adapter;
289 lbs_deb_fw("why double free adapter?\n");
293 lbs_deb_fw("free command buffer\n");
294 libertas_free_cmd_buffer(priv);
296 lbs_deb_fw("free command_timer\n");
297 del_timer(&adapter->command_timer);
299 lbs_deb_fw("free scan results table\n");
300 kfree(adapter->networks);
301 adapter->networks = NULL;
303 /* Free the adapter object itself */
304 lbs_deb_fw("free adapter\n");
306 priv->adapter = NULL;
310 * This function handles the timeout of command sending.
311 * It will re-send the same command again.
313 static void command_timer_fn(unsigned long data)
315 wlan_private *priv = (wlan_private *)data;
316 wlan_adapter *adapter = priv->adapter;
317 struct cmd_ctrl_node *ptempnode;
318 struct cmd_ds_command *cmd;
321 ptempnode = adapter->cur_cmd;
322 if (ptempnode == NULL) {
323 lbs_deb_fw("ptempnode empty\n");
327 cmd = (struct cmd_ds_command *)ptempnode->bufvirtualaddr;
329 lbs_deb_fw("cmd is NULL\n");
333 lbs_deb_fw("command_timer_fn fired, cmd %x\n", cmd->command);
335 if (!adapter->fw_ready)
338 spin_lock_irqsave(&adapter->driver_lock, flags);
339 adapter->cur_cmd = NULL;
340 spin_unlock_irqrestore(&adapter->driver_lock, flags);
342 lbs_deb_fw("re-sending same command because of timeout\n");
343 libertas_queue_cmd(adapter, ptempnode, 0);
345 wake_up_interruptible(&priv->mainthread.waitq);