2 * This file contains the initialization for FW and HW
4 #include <linux/module.h>
5 #include <linux/moduleparam.h>
7 #include <linux/vmalloc.h>
8 #include <linux/firmware.h>
9 #include <linux/version.h>
20 char *libertas_fw_name = NULL;
21 module_param_named(fw_name, libertas_fw_name, charp, 0644);
23 unsigned int libertas_debug = 0;
24 module_param(libertas_debug, int, 0);
27 * @brief This function checks the validity of Boot2/FW image.
29 * @param data pointer to image
33 static int check_fwfile_format(u8 *data, u32 totlen)
36 u32 blksize, offset, len;
44 blksize = *(u32*)(data + offsetof(struct fwheader, datalength));
46 case FW_HAS_DATA_TO_RECV:
47 offset = sizeof(struct fwheader) + blksize;
53 case FW_HAS_LAST_BLOCK:
64 lbs_pr_err("bin file format check FAIL...\n");
66 lbs_pr_debug(1, "bin file format check PASS...\n");
72 * @brief This function downloads firmware image, gets
73 * HW spec from firmware and set basic parameters to
76 * @param priv A pointer to wlan_private structure
79 static int wlan_setup_station_hw(wlan_private * priv)
82 wlan_adapter *adapter = priv->adapter;
86 if ((ret = request_firmware(&priv->firmware, libertas_fw_name,
87 priv->hotplug_device)) < 0) {
88 lbs_pr_err("request_firmware() failed, error code = %#x\n",
90 lbs_pr_err("%s not found in /lib/firmware\n", libertas_fw_name);
94 if(check_fwfile_format(priv->firmware->data, priv->firmware->size)) {
95 release_firmware(priv->firmware);
99 ret = libertas_sbi_prog_firmware(priv);
101 release_firmware(priv->firmware);
104 lbs_pr_debug(1, "Bootloader in invalid state!\n");
110 * Read MAC address from HW
112 memset(adapter->current_addr, 0xff, ETH_ALEN);
114 ret = libertas_prepare_and_send_command(priv, cmd_get_hw_spec,
115 0, cmd_option_waitforrsp, 0, NULL);
122 libertas_set_mac_packet_filter(priv);
124 /* Get the supported Data rates */
125 ret = libertas_prepare_and_send_command(priv, cmd_802_11_data_rate,
127 cmd_option_waitforrsp, 0, NULL);
141 static int wlan_allocate_adapter(wlan_private * priv)
144 wlan_adapter *adapter = priv->adapter;
146 struct bss_descriptor *ptempscantable;
148 /* Allocate buffer to store the BSSID list */
149 ulbufsize = sizeof(struct bss_descriptor) * MRVDRV_MAX_BSSID_LIST;
150 if (!(ptempscantable = kmalloc(ulbufsize, GFP_KERNEL))) {
151 libertas_free_adapter(priv);
155 adapter->scantable = ptempscantable;
156 memset(adapter->scantable, 0, ulbufsize);
158 /* Allocate the command buffers */
159 libertas_allocate_cmd_buffer(priv);
161 memset(&adapter->libertas_ps_confirm_sleep, 0, sizeof(struct PS_CMD_ConfirmSleep));
162 adapter->libertas_ps_confirm_sleep.seqnum = cpu_to_le16(++adapter->seqnum);
163 adapter->libertas_ps_confirm_sleep.command =
164 cpu_to_le16(cmd_802_11_ps_mode);
165 adapter->libertas_ps_confirm_sleep.size =
166 cpu_to_le16(sizeof(struct PS_CMD_ConfirmSleep));
167 adapter->libertas_ps_confirm_sleep.result = 0;
168 adapter->libertas_ps_confirm_sleep.action =
169 cpu_to_le16(cmd_subcmd_sleep_confirmed);
174 static void wlan_init_adapter(wlan_private * priv)
176 wlan_adapter *adapter = priv->adapter;
179 adapter->scanprobes = 0;
181 adapter->bcn_avg_factor = DEFAULT_BCN_AVG_FACTOR;
182 adapter->data_avg_factor = DEFAULT_DATA_AVG_FACTOR;
185 adapter->atimwindow = 0;
187 adapter->connect_status = libertas_disconnected;
188 memset(adapter->current_addr, 0xff, ETH_ALEN);
191 adapter->scantype = cmd_scan_type_active;
194 adapter->scanmode = cmd_bss_type_any;
196 /* 802.11 specific */
197 adapter->secinfo.WEPstatus = wlan802_11WEPdisabled;
198 for (i = 0; i < sizeof(adapter->wep_keys) / sizeof(adapter->wep_keys[0]);
200 memset(&adapter->wep_keys[i], 0, sizeof(struct WLAN_802_11_KEY));
201 adapter->wep_tx_keyidx = 0;
202 adapter->secinfo.WEPstatus = wlan802_11WEPdisabled;
203 adapter->secinfo.authmode = wlan802_11authmodeopen;
204 adapter->secinfo.auth1xalg = WLAN_1X_AUTH_ALG_NONE;
205 adapter->secinfo.Encryptionmode = CIPHER_NONE;
206 adapter->inframode = wlan802_11infrastructure;
208 adapter->assoc_req = NULL;
210 adapter->numinscantable = 0;
211 adapter->pattemptedbssdesc = NULL;
212 mutex_init(&adapter->lock);
214 adapter->prescan = 1;
216 memset(&adapter->curbssparams, 0, sizeof(adapter->curbssparams));
218 /* PnP and power profile */
219 adapter->surpriseremoved = 0;
221 adapter->currentpacketfilter =
222 cmd_act_mac_rx_on | cmd_act_mac_tx_on;
224 adapter->radioon = RADIO_ON;
225 adapter->txantenna = RF_ANTENNA_2;
226 adapter->rxantenna = RF_ANTENNA_AUTO;
228 adapter->is_datarate_auto = 1;
229 adapter->beaconperiod = MRVDRV_BEACON_INTERVAL;
231 // set default value of capinfo.
232 #define SHORT_PREAMBLE_ALLOWED 1
233 memset(&adapter->capinfo, 0, sizeof(adapter->capinfo));
234 adapter->capinfo.shortpreamble = SHORT_PREAMBLE_ALLOWED;
236 adapter->adhocchannel = DEFAULT_AD_HOC_CHANNEL;
238 adapter->psmode = wlan802_11powermodecam;
239 adapter->multipledtim = MRVDRV_DEFAULT_MULTIPLE_DTIM;
241 adapter->listeninterval = MRVDRV_DEFAULT_LISTEN_INTERVAL;
243 adapter->psstate = PS_STATE_FULL_POWER;
244 adapter->needtowakeup = 0;
245 adapter->locallisteninterval = 0; /* default value in firmware will be used */
247 adapter->datarate = 0; // Initially indicate the rate as auto
249 adapter->adhoc_grate_enabled = 0;
251 adapter->intcounter = 0;
253 adapter->currenttxskb = NULL;
254 adapter->pkttxctrl = 0;
256 memset(&adapter->tx_queue_ps, 0, NR_TX_QUEUE*sizeof(struct sk_buff*));
257 adapter->tx_queue_idx = 0;
258 spin_lock_init(&adapter->txqueue_lock);
263 static void command_timer_fn(unsigned long data);
265 int libertas_init_fw(wlan_private * priv)
268 wlan_adapter *adapter = priv->adapter;
272 /* Allocate adapter structure */
273 if ((ret = wlan_allocate_adapter(priv)) != 0)
276 /* init adapter structure */
277 wlan_init_adapter(priv);
279 /* init timer etc. */
280 setup_timer(&adapter->command_timer, command_timer_fn,
281 (unsigned long)priv);
283 /* download fimrware etc. */
284 if ((ret = wlan_setup_station_hw(priv)) != 0) {
285 del_timer_sync(&adapter->command_timer);
290 libertas_init_11d(priv);
298 void libertas_free_adapter(wlan_private * priv)
300 wlan_adapter *adapter = priv->adapter;
303 lbs_pr_debug(1, "Why double free adapter?:)\n");
307 lbs_pr_debug(1, "Free command buffer\n");
308 libertas_free_cmd_buffer(priv);
310 lbs_pr_debug(1, "Free commandTimer\n");
311 del_timer(&adapter->command_timer);
313 lbs_pr_debug(1, "Free scantable\n");
314 if (adapter->scantable) {
315 kfree(adapter->scantable);
316 adapter->scantable = NULL;
319 lbs_pr_debug(1, "Free adapter\n");
321 /* Free the adapter object itself */
323 priv->adapter = NULL;
327 * This function handles the timeout of command sending.
328 * It will re-send the same command again.
330 static void command_timer_fn(unsigned long data)
332 wlan_private *priv = (wlan_private *)data;
333 wlan_adapter *adapter = priv->adapter;
334 struct cmd_ctrl_node *ptempnode;
335 struct cmd_ds_command *cmd;
338 ptempnode = adapter->cur_cmd;
339 cmd = (struct cmd_ds_command *)ptempnode->bufvirtualaddr;
341 lbs_pr_info("command_timer_fn fired (%x)\n", cmd->command);
343 if (!adapter->fw_ready)
346 if (ptempnode == NULL) {
347 lbs_pr_debug(1, "PTempnode Empty\n");
351 spin_lock_irqsave(&adapter->driver_lock, flags);
352 adapter->cur_cmd = NULL;
353 spin_unlock_irqrestore(&adapter->driver_lock, flags);
355 lbs_pr_debug(1, "Re-sending same command as it timeout...!\n");
356 libertas_queue_cmd(adapter, ptempnode, 0);
358 wake_up_interruptible(&priv->mainthread.waitq);