atheros_2_0_function.patch

openmoko 使用的sdio wifi驱动源码

+     */
+    if (skipflash)
+    {
+        ar6000_reset_device_skipflash(ar->arHifDevice);
+            }
+
+    BMIInit();
+    {
+        struct bmi_target_info targ_info;
+
+        if (BMIGetTargetInfo(ar->arHifDevice, &targ_info) != A_OK) {
+            return;
+        }
+
+        ar->arVersion.target_ver = targ_info.target_ver;
+        ar->arTargetType = targ_info.target_type;
+    }
+
+    if (enableuartprint) {
+        A_UINT32 param;
+        param = 1;
+        if (BMIWriteMemory(ar->arHifDevice,
+                           HOST_INTEREST_ITEM_ADDRESS(ar, hi_serial_enable),
+                           (A_UCHAR *)&param,
+                           4)!= A_OK)
+        {
+             AR_DEBUG_PRINTF("BMIWriteMemory for enableuartprint failed \n");
+             return ;
+        }
+        AR_DEBUG_PRINTF("Serial console prints enabled\n");
+    }
+#ifdef CONFIG_HOST_TCMD_SUPPORT
+    if(testmode) {
+        ar->arTargetMode = AR6000_TCMD_MODE;
+    }else {
+        ar->arTargetMode = AR6000_WLAN_MODE;
+    }
+#endif
+    if (enabletimerwar) {
+        A_UINT32 param;
+
+        if (BMIReadMemory(ar->arHifDevice,
+            HOST_INTEREST_ITEM_ADDRESS(ar, hi_option_flag),
+            (A_UCHAR *)&param,
+            4)!= A_OK)
+        {
+            AR_DEBUG_PRINTF("BMIReadMemory for enabletimerwar failed \n");
+            return;
+        }
+
+        param |= HI_OPTION_TIMER_WAR;
+
+        if (BMIWriteMemory(ar->arHifDevice,
+            HOST_INTEREST_ITEM_ADDRESS(ar, hi_option_flag),
+            (A_UCHAR *)&param,
+            4) != A_OK)
+        {
+            AR_DEBUG_PRINTF("BMIWriteMemory for enabletimerwar failed \n");
+            return;
+        }
+        AR_DEBUG_PRINTF("Timer WAR enabled\n");
+    }
+
+
+        /* since BMIInit is called in the driver layer, we have to set the block
+         * size here for the target */
+
+    if (A_FAILED(ar6000_SetHTCBlockSize(ar))) {
+        return;
+    }
+
+    spin_lock_init(&ar->arLock);
+
+    /* Don't install the init function if BMI is requested */
+    if(!bmienable)
+    {
+        dev->init = ar6000_init;
+    } else {
+        AR_DEBUG_PRINTF(" BMI enabled \n");
+    }
+
+    dev->open = &ar6000_open;
+    dev->stop = &ar6000_close;
+    dev->hard_start_xmit = &ar6000_data_tx;
+    dev->get_stats = &ar6000_get_stats;
+
+    /* dev->tx_timeout = ar6000_tx_timeout; */
+    dev->do_ioctl = &ar6000_ioctl;
+    dev->watchdog_timeo = AR6000_TX_TIMEOUT;
+    ar6000_ioctl_iwsetup(&ath_iw_handler_def);
+    dev->wireless_handlers = &ath_iw_handler_def;
+    ath_iw_handler_def.get_wireless_stats = ar6000_get_iwstats; /*Displayed via proc fs */
+
+    /*
+     * We need the OS to provide us with more headroom in order to
+     * perform dix to 802.3, WMI header encap, and the HTC header
+     */
+    dev->hard_header_len = ETH_HLEN + sizeof(ATH_LLC_SNAP_HDR) +
+        sizeof(WMI_DATA_HDR) + HTC_HEADER_LEN;
+
+    /* This runs the init function */
+    if (register_netdev(dev)) {
+        AR_DEBUG_PRINTF("ar6000_avail: register_netdev failed\n");
+        ar6000_destroy(dev, 0);
+        return;
+    }
+
+    HTCSetInstance(ar->arHtcTarget, ar);
+
+    /* We only register the device in the global list if we succeed. */
+    /* If the device is in the global list, it will be destroyed     */
+    /* when the module is unloaded.                                  */
+    ar6000_devices[device_index] = dev;
+
+    AR_DEBUG_PRINTF("ar6000_avail: name=%s htcTarget=0x%x, dev=0x%x (%d), ar=0x%x\n",
+                    dev->name, (A_UINT32)HTCHandle, (A_UINT32)dev, device_index,
+                    (A_UINT32)ar);
+}
+
+static void ar6000_target_failure(void *Instance, A_STATUS Status)
+{
+    AR_SOFTC_T *ar = (AR_SOFTC_T *)Instance;
+    WMI_TARGET_ERROR_REPORT_EVENT errEvent;
+    static A_BOOL sip = FALSE;
+
+    if (Status != A_OK) {
+        if (timer_pending(&ar->arHBChallengeResp.timer)) {
+            A_UNTIMEOUT(&ar->arHBChallengeResp.timer);
+        }
+
+        /* try dumping target assertion information (if any) */
+        ar6000_dump_target_assert_info(ar->arHifDevice,ar->arTargetType);
+
+        /*
+         * Fetch the logs from the target via the diagnostic
+         * window.
+         */
+        ar6000_dbglog_get_debug_logs(ar);
+
+        /* Report the error only once */
+        if (!sip) {
+            sip = TRUE;
+            errEvent.errorVal = WMI_TARGET_COM_ERR |
+                                WMI_TARGET_FATAL_ERR;
+            ar6000_send_event_to_app(ar, WMI_ERROR_REPORT_EVENTID,
+                                     (A_UINT8 *)&errEvent,
+                                     sizeof(WMI_TARGET_ERROR_REPORT_EVENT));
+        }
+    }
+}
+
+static void
+ar6000_unavail_ev(void *Instance)
+{
+    AR_SOFTC_T *ar = (AR_SOFTC_T *)Instance;
+        /* NULL out it's entry in the global list */
+    ar6000_devices[ar->arDeviceIndex] = NULL;
+    ar6000_destroy(ar->arNetDev, 1);
+}
+
+/*
+ * We need to differentiate between the surprise and planned removal of the
+ * device because of the following consideration:
+ * - In case of surprise removal, the hcd already frees up the pending
+ *   for the device and hence there is no need to unregister the function
+ *   driver inorder to get these requests. For planned removal, the function
+ *   driver has to explictly unregister itself to have the hcd return all the
+ *   pending requests before the data structures for the devices are freed up.
+ *   Note that as per the current implementation, the function driver will
+ *   end up releasing all the devices since there is no API to selectively
+ *   release a particular device.
+ * - Certain commands issued to the target can be skipped for surprise
+ *   removal since they will anyway not go through.
+ */
+static void
+ar6000_destroy(struct net_device *dev, unsigned int unregister)
+{
+    AR_SOFTC_T *ar;
+
+    AR_DEBUG_PRINTF("+ar6000_destroy \n");
+
+    if((dev == NULL) || ((ar = netdev_priv(dev)) == NULL))
+    {
+        AR_DEBUG_PRINTF("%s(): Failed to get device structure.\n", __func__);
+        return;
+    }
+
+    /* Stop the transmit queues */
+    netif_stop_queue(dev);
+
+    /* Disable the target and the interrupts associated with it */
+    if (ar->arWmiReady == TRUE)
+    {
+        if (!bypasswmi)
+        {
+            if (ar->arConnected == TRUE || ar->arConnectPending == TRUE)
+            {
+                AR_DEBUG_PRINTF("%s(): Disconnect\n", __func__);
+                AR6000_SPIN_LOCK(&ar->arLock, 0);
+                ar6000_init_profile_info(ar);
+                AR6000_SPIN_UNLOCK(&ar->arLock, 0);
+                wmi_disconnect_cmd(ar->arWmi);
+            }
+
+            ar6000_dbglog_get_debug_logs(ar);
+            ar->arWmiReady  = FALSE;
+            ar->arConnected = FALSE;
+            ar->arConnectPending = FALSE;
+            wmi_shutdown(ar->arWmi);
+            ar->arWmiEnabled = FALSE;
+            ar->arWmi = NULL;
+            ar->arWlanState = WLAN_ENABLED;
+#ifdef USER_KEYS
+            ar->user_savedkeys_stat = USER_SAVEDKEYS_STAT_INIT;
+            ar->user_key_ctrl      = 0;
+#endif
+        }
+
+         AR_DEBUG_PRINTF("%s(): WMI stopped\n", __func__);
+    }
+    else
+    {
+        AR_DEBUG_PRINTF("%s(): WMI not ready 0x%08x 0x%08x\n",
+            __func__, (unsigned int) ar, (unsigned int) ar->arWmi);
+
+        /* Shut down WMI if we have started it */
+        if(ar->arWmiEnabled == TRUE)
+        {
+            AR_DEBUG_PRINTF("%s(): Shut down WMI\n", __func__);
+            wmi_shutdown(ar->arWmi);
+            ar->arWmiEnabled = FALSE;
+            ar->arWmi = NULL;
+        }
+    }
+
+    /* stop HTC */
+    HTCStop(ar->arHtcTarget);
+
+    /* set the instance to NULL so we do not get called back on remove incase we
+     * we're explicity destroyed by module unload */
+    HTCSetInstance(ar->arHtcTarget, NULL);
+
+    if (resetok) {
+        /* try to reset the device if we can
+         * The driver may have been configure NOT to reset the target during
+         * a debug session */
+        AR_DEBUG_PRINTF(" Attempting to reset target on instance destroy.... \n");
+        ar6000_reset_device(ar->arHifDevice, ar->arTargetType);
+    } else {
+        AR_DEBUG_PRINTF(" Host does not want target reset. \n");
+    }
+
+       /* Done with cookies */
+    ar6000_cookie_cleanup(ar);
+
+    /* Cleanup BMI */
+    BMIInit();
+
+    /* Clear the tx counters */
+    memset(tx_attempt, 0, sizeof(tx_attempt));
+    memset(tx_post, 0, sizeof(tx_post));
+    memset(tx_complete, 0, sizeof(tx_complete));
+
+
+    /* Free up the device data structure */
+    if (unregister)
+	    unregister_netdev(dev);
+#ifndef free_netdev
+    kfree(dev);
+#else
+    free_netdev(dev);
+#endif
+
+    AR_DEBUG_PRINTF("-ar6000_destroy \n");
+}
+
+static void ar6000_detect_error(unsigned long ptr)
+{
+    struct net_device *dev = (struct net_device *)ptr;
+    AR_SOFTC_T *ar = (AR_SOFTC_T *)dev->priv;
+    WMI_TARGET_ERROR_REPORT_EVENT errEvent;
+
+    AR6000_SPIN_LOCK(&ar->arLock, 0);
+
+    if (ar->arHBChallengeResp.outstanding) {
+        ar->arHBChallengeResp.missCnt++;
+    } else {
+        ar->arHBChallengeResp.missCnt = 0;
+    }
+
+    if (ar->arHBChallengeResp.missCnt > ar->arHBChallengeResp.missThres) {
+        /* Send Error Detect event to the application layer and do not reschedule the error detection module timer */
+        ar->arHBChallengeResp.missCnt = 0;
+        ar->arHBChallengeResp.seqNum = 0;
+        errEvent.errorVal = WMI_TARGET_COM_ERR | WMI_TARGET_FATAL_ERR;
+        AR6000_SPIN_UNLOCK(&ar->arLock, 0);
+        ar6000_send_event_to_app(ar, WMI_ERROR_REPORT_EVENTID,
+                                 (A_UINT8 *)&errEvent,
+                                 sizeof(WMI_TARGET_ERROR_REPORT_EVENT));
+        return;
+    }
+
+    /* Generate the sequence number for the next challenge */
+    ar->arHBChallengeResp.seqNum++;
+    ar->arHBChallengeResp.outstanding = TRUE;
+
+    AR6000_SPIN_UNLOCK(&ar->arLock, 0);
+
+    /* Send the challenge on the control channel */
+    if (wmi_get_challenge_resp_cmd(ar->arWmi, ar->arHBChallengeResp.seqNum, DRV_HB_CHALLENGE) != A_OK) {
+        AR_DEBUG_PRINTF("Unable to send heart beat challenge\n");
+    }
+
+
+    /* Reschedule the timer for the next challenge */
+    A_TIMEOUT_MS(&ar->arHBChallengeResp.timer, ar->arHBChallengeResp.frequency * 1000, 0);
+}
+
+void ar6000_init_profile_info(AR_SOFTC_T *ar)
+{
+    ar->arSsidLen            = 0;
+    A_MEMZERO(ar->arSsid, sizeof(ar->arSsid));
+    ar->arNetworkType        = INFRA_NETWORK;
+    ar->arDot11AuthMode      = OPEN_AUTH;
+    ar->arAuthMode           = NONE_AUTH;
+    ar->arPairwiseCrypto     = NONE_CRYPT;
+    ar->arPairwiseCryptoLen  = 0;
+    ar->arGroupCrypto        = NONE_CRYPT;
+    ar->arGroupCryptoLen     = 0;
+    A_MEMZERO(ar->arWepKeyList, sizeof(ar->arWepKeyList));
+    A_MEMZERO(ar->arReqBssid, sizeof(ar->arReqBssid));
+    A_MEMZERO(ar->arBssid, sizeof(ar->arBssid));
+    ar->arBssChannel = 0;
+}
+
+static void
+ar6000_init_control_info(AR_SOFTC_T *ar)
+{
+    ar->arWmiEnabled         = FALSE;
+    ar6000_init_profile_info(ar);
+    ar->arDefTxKeyIndex      = 0;
+    A_MEMZERO(ar->arWepKeyList, sizeof(ar->arWepKeyList));
+    ar->arChannelHint        = 0;
+    ar->arListenInterval     = MAX_LISTEN_INTERVAL;
+    ar->arVersion.host_ver   = AR6K_SW_VERSION;
+    ar->arRssi               = 0;
+    ar->arTxPwr              = 0;
+    ar->arTxPwrSet           = FALSE;
+    ar->arSkipScan           = 0;
+    ar->arBeaconInterval     = 0;
+    ar->arBitRate            = 0;
+    ar->arMaxRetries         = 0;
+    ar->arWmmEnabled         = TRUE;
+}
+
+static int
+ar6000_open(struct net_device *dev)
+{
+    /* Wake up the queues */
+    netif_wake_queue(dev);
+
+    return 0;
+}
+
+static int
+ar6000_close(struct net_device *dev)
+{
+    netif_stop_queue(dev);
+
+    return 0;
+}
+
+/* connect to a service */
+static A_STATUS ar6000_connectservice(AR_SOFTC_T               *ar,
+                                      HTC_SERVICE_CONNECT_REQ  *pConnect,
+                                      WMI_PRI_STREAM_ID        WmiStreamID,
+                                      char                     *pDesc)
+{
+    A_STATUS                 status;
+    HTC_SERVICE_CONNECT_RESP response;
+
+    do {
+
+        A_MEMZERO(&response,sizeof(response));
+
+        status = HTCConnectService(ar->arHtcTarget,
+                                   pConnect,
+                                   &response);
+
+        if (A_FAILED(status)) {
+            AR_DEBUG_PRINTF(" Failed to connect to %s service status:%d \n", pDesc, status);
+            break;
+        }
+
+        if (WmiStreamID == WMI_NOT_MAPPED) {
+                /* done */
+            break;
+        }
+
+            /* set endpoint mapping for the WMI stream in the driver layer */
+        arSetWMIStream2EndpointIDMap(ar,WmiStreamID,response.Endpoint);
+
+    } while (FALSE);
+
+    return status;
+}