diff options
Diffstat (limited to 'drivers/staging/rtl8188eu/os_dep/usb_intf.c')
| -rw-r--r-- | drivers/staging/rtl8188eu/os_dep/usb_intf.c | 513 |
1 files changed, 513 insertions, 0 deletions
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c new file mode 100644 index 0000000..3f4571c --- /dev/null +++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c @@ -0,0 +1,513 @@ +// SPDX-License-Identifier: GPL-2.0 +/****************************************************************************** + * + * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. + * + ******************************************************************************/ + +#define pr_fmt(fmt) "R8188EU: " fmt +#include <osdep_service.h> +#include <drv_types.h> +#include <recv_osdep.h> +#include <xmit_osdep.h> +#include <hal_intf.h> +#include <linux/usb.h> +#include <linux/vmalloc.h> +#include <mon.h> +#include <osdep_intf.h> + +#include <usb_ops_linux.h> +#include <rtw_ioctl.h> + +#include "rtl8188e_hal.h" + +#define USB_VENDER_ID_REALTEK 0x0bda + +/* DID_USB_v916_20130116 */ +static const struct usb_device_id rtw_usb_id_tbl[] = { + /*=== Realtek demoboard ===*/ + {USB_DEVICE(USB_VENDER_ID_REALTEK, 0x8179)}, /* 8188EUS */ + {USB_DEVICE(USB_VENDER_ID_REALTEK, 0x0179)}, /* 8188ETV */ + /*=== Customer ID ===*/ + /****** 8188EUS ********/ + {USB_DEVICE(0x056e, 0x4008)}, /* Elecom WDC-150SU2M */ + {USB_DEVICE(0x07b8, 0x8179)}, /* Abocom - Abocom */ + {USB_DEVICE(0x2001, 0x330F)}, /* DLink DWA-125 REV D1 */ + {USB_DEVICE(0x2001, 0x3310)}, /* Dlink DWA-123 REV D1 */ + {USB_DEVICE(0x2001, 0x3311)}, /* DLink GO-USB-N150 REV B1 */ + {USB_DEVICE(0x2001, 0x331B)}, /* D-Link DWA-121 rev B1 */ + {USB_DEVICE(0x2357, 0x010c)}, /* TP-Link TL-WN722N v2 */ + {USB_DEVICE(0x0df6, 0x0076)}, /* Sitecom N150 v2 */ + {USB_DEVICE(USB_VENDER_ID_REALTEK, 0xffef)}, /* Rosewill RNX-N150NUB */ + {} /* Terminating entry */ +}; + +MODULE_DEVICE_TABLE(usb, rtw_usb_id_tbl); + +static struct dvobj_priv *usb_dvobj_init(struct usb_interface *usb_intf) +{ + int i; + struct dvobj_priv *pdvobjpriv; + struct usb_host_config *phost_conf; + struct usb_config_descriptor *pconf_desc; + struct usb_host_interface *phost_iface; + struct usb_interface_descriptor *piface_desc; + struct usb_endpoint_descriptor *pendp_desc; + struct usb_device *pusbd; + + pdvobjpriv = kzalloc(sizeof(*pdvobjpriv), GFP_KERNEL); + if (!pdvobjpriv) + return NULL; + + pdvobjpriv->pusbintf = usb_intf; + pusbd = interface_to_usbdev(usb_intf); + pdvobjpriv->pusbdev = pusbd; + usb_set_intfdata(usb_intf, pdvobjpriv); + + pdvobjpriv->RtNumInPipes = 0; + pdvobjpriv->RtNumOutPipes = 0; + + phost_conf = pusbd->actconfig; + pconf_desc = &phost_conf->desc; + + phost_iface = &usb_intf->altsetting[0]; + piface_desc = &phost_iface->desc; + + pdvobjpriv->NumInterfaces = pconf_desc->bNumInterfaces; + pdvobjpriv->InterfaceNumber = piface_desc->bInterfaceNumber; + + for (i = 0; i < piface_desc->bNumEndpoints; i++) { + int ep_num; + + pendp_desc = &phost_iface->endpoint[i].desc; + + ep_num = usb_endpoint_num(pendp_desc); + + if (usb_endpoint_is_bulk_in(pendp_desc)) { + pdvobjpriv->RtInPipe[pdvobjpriv->RtNumInPipes] = ep_num; + pdvobjpriv->RtNumInPipes++; + } else if (usb_endpoint_is_int_in(pendp_desc)) { + pdvobjpriv->RtInPipe[pdvobjpriv->RtNumInPipes] = ep_num; + pdvobjpriv->RtNumInPipes++; + } else if (usb_endpoint_is_bulk_out(pendp_desc)) { + pdvobjpriv->RtOutPipe[pdvobjpriv->RtNumOutPipes] = + ep_num; + pdvobjpriv->RtNumOutPipes++; + } + } + + if (pusbd->speed == USB_SPEED_HIGH) + pdvobjpriv->ishighspeed = true; + else + pdvobjpriv->ishighspeed = false; + + mutex_init(&pdvobjpriv->usb_vendor_req_mutex); + usb_get_dev(pusbd); + + return pdvobjpriv; +} + +static void usb_dvobj_deinit(struct usb_interface *usb_intf) +{ + struct dvobj_priv *dvobj = usb_get_intfdata(usb_intf); + + usb_set_intfdata(usb_intf, NULL); + if (dvobj) { + /* Modify condition for 92DU DMDP 2010.11.18, by Thomas */ + if ((dvobj->NumInterfaces != 2 && + dvobj->NumInterfaces != 3) || + (dvobj->InterfaceNumber == 1)) { + if (interface_to_usbdev(usb_intf)->state != + USB_STATE_NOTATTACHED) { + /* If we didn't unplug usb dongle and + * remove/insert module, driver fails + * on sitesurvey for the first time when + * device is up . Reset usb port for sitesurvey + * fail issue. */ + pr_debug("usb attached..., try to reset usb device\n"); + usb_reset_device(interface_to_usbdev(usb_intf)); + } + } + + mutex_destroy(&dvobj->usb_vendor_req_mutex); + kfree(dvobj); + } + + usb_put_dev(interface_to_usbdev(usb_intf)); +} + +void usb_intf_stop(struct adapter *padapter) +{ + RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+usb_intf_stop\n")); + + /* disable_hw_interrupt */ + if (!padapter->bSurpriseRemoved) { + /* device still exists, so driver can do i/o operation */ + /* TODO: */ + RT_TRACE(_module_hci_intfs_c_, _drv_err_, + ("SurpriseRemoved == false\n")); + } + + /* cancel in irp */ + rtw_hal_inirp_deinit(padapter); + + /* cancel out irp */ + usb_write_port_cancel(padapter); + + /* todo:cancel other irps */ + + RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-usb_intf_stop\n")); +} + +static void rtw_dev_unload(struct adapter *padapter) +{ + RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_dev_unload\n")); + + if (padapter->bup) { + pr_debug("===> rtw_dev_unload\n"); + padapter->bDriverStopped = true; + if (padapter->xmitpriv.ack_tx) + rtw_ack_tx_done(&padapter->xmitpriv, RTW_SCTX_DONE_DRV_STOP); + /* s3. */ + usb_intf_stop(padapter); + /* s4. */ + if (!padapter->pwrctrlpriv.bInternalAutoSuspend) + rtw_stop_drv_threads(padapter); + + /* s5. */ + if (!padapter->bSurpriseRemoved) { + rtw_hal_deinit(padapter); + padapter->bSurpriseRemoved = true; + } + + padapter->bup = false; + } else { + RT_TRACE(_module_hci_intfs_c_, _drv_err_, + ("r871x_dev_unload():padapter->bup == false\n")); + } + + pr_debug("<=== rtw_dev_unload\n"); + + RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-rtw_dev_unload\n")); +} + +static int rtw_suspend(struct usb_interface *pusb_intf, pm_message_t message) +{ + struct dvobj_priv *dvobj = usb_get_intfdata(pusb_intf); + struct adapter *padapter = dvobj->if1; + struct net_device *pnetdev = padapter->pnetdev; + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; + unsigned long start_time = jiffies; + + pr_debug("==> %s (%s:%d)\n", __func__, current->comm, current->pid); + + if ((!padapter->bup) || (padapter->bDriverStopped) || + (padapter->bSurpriseRemoved)) { + pr_debug("padapter->bup=%d bDriverStopped=%d bSurpriseRemoved = %d\n", + padapter->bup, padapter->bDriverStopped, + padapter->bSurpriseRemoved); + goto exit; + } + + pwrpriv->bInSuspend = true; + rtw_cancel_all_timer(padapter); + LeaveAllPowerSaveMode(padapter); + + mutex_lock(&pwrpriv->mutex_lock); + /* s1. */ + if (pnetdev) { + netif_carrier_off(pnetdev); + netif_tx_stop_all_queues(pnetdev); + } + + /* s2. */ + rtw_disassoc_cmd(padapter, 0, false); + + if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) && + check_fwstate(pmlmepriv, _FW_LINKED)) { + pr_debug("%s:%d %s(%pM), length:%d assoc_ssid.length:%d\n", + __func__, __LINE__, + pmlmepriv->cur_network.network.Ssid.Ssid, + pmlmepriv->cur_network.network.MacAddress, + pmlmepriv->cur_network.network.Ssid.SsidLength, + pmlmepriv->assoc_ssid.SsidLength); + + pmlmepriv->to_roaming = 1; + } + /* s2-2. indicate disconnect to os */ + rtw_indicate_disconnect(padapter); + /* s2-3. */ + rtw_free_assoc_resources(padapter); + /* s2-4. */ + rtw_free_network_queue(padapter, true); + + rtw_dev_unload(padapter); + mutex_unlock(&pwrpriv->mutex_lock); + + if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) + rtw_indicate_scan_done(padapter, 1); + + if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) + rtw_indicate_disconnect(padapter); + +exit: + pr_debug("<=== %s .............. in %dms\n", __func__, + jiffies_to_msecs(jiffies - start_time)); + + return 0; +} + +static int rtw_resume_process(struct adapter *padapter) +{ + struct net_device *pnetdev; + struct pwrctrl_priv *pwrpriv = NULL; + int ret = -1; + unsigned long start_time = jiffies; + + pr_debug("==> %s (%s:%d)\n", __func__, current->comm, current->pid); + + if (padapter) { + pnetdev = padapter->pnetdev; + pwrpriv = &padapter->pwrctrlpriv; + } else { + goto exit; + } + + mutex_lock(&pwrpriv->mutex_lock); + rtw_reset_drv_sw(padapter); + pwrpriv->bkeepfwalive = false; + + pr_debug("bkeepfwalive(%x)\n", pwrpriv->bkeepfwalive); + if (netdev_open(pnetdev) != 0) { + mutex_unlock(&pwrpriv->mutex_lock); + goto exit; + } + + netif_device_attach(pnetdev); + netif_carrier_on(pnetdev); + + mutex_unlock(&pwrpriv->mutex_lock); + + rtw_roaming(padapter, NULL); + + ret = 0; +exit: + if (pwrpriv) + pwrpriv->bInSuspend = false; + pr_debug("<=== %s return %d.............. in %dms\n", __func__, + ret, jiffies_to_msecs(jiffies - start_time)); + + return ret; +} + +static int rtw_resume(struct usb_interface *pusb_intf) +{ + struct dvobj_priv *dvobj = usb_get_intfdata(pusb_intf); + struct adapter *padapter = dvobj->if1; + + return rtw_resume_process(padapter); +} + +/* + * drv_init() - a device potentially for us + * + * notes: drv_init() is called when the bus driver has located + * a card for us to support. + * We accept the new device by returning 0. + */ + +static struct adapter *rtw_usb_if1_init(struct dvobj_priv *dvobj, + struct usb_interface *pusb_intf, const struct usb_device_id *pdid) +{ + struct adapter *padapter = NULL; + struct net_device *pnetdev = NULL; + struct net_device *pmondev; + int status = _FAIL; + + padapter = vzalloc(sizeof(*padapter)); + if (!padapter) + goto exit; + padapter->dvobj = dvobj; + dvobj->if1 = padapter; + + padapter->bDriverStopped = true; + mutex_init(&padapter->hw_init_mutex); + + pnetdev = rtw_init_netdev(padapter); + if (!pnetdev) + goto free_adapter; + SET_NETDEV_DEV(pnetdev, dvobj_to_dev(dvobj)); + padapter = rtw_netdev_priv(pnetdev); + + if (padapter->registrypriv.monitor_enable) { + pmondev = rtl88eu_mon_init(); + if (!pmondev) + netdev_warn(pnetdev, "Failed to initialize monitor interface"); + padapter->pmondev = pmondev; + } + + padapter->HalData = kzalloc(sizeof(struct hal_data_8188e), GFP_KERNEL); + if (!padapter->HalData) + DBG_88E("cant not alloc memory for HAL DATA\n"); + + /* step read_chip_version */ + rtw_hal_read_chip_version(padapter); + + /* step usb endpoint mapping */ + rtw_hal_chip_configure(padapter); + + /* step read efuse/eeprom data and get mac_addr */ + rtw_hal_read_chip_info(padapter); + + /* step 5. */ + if (rtw_init_drv_sw(padapter) == _FAIL) { + RT_TRACE(_module_hci_intfs_c_, _drv_err_, + ("Initialize driver software resource Failed!\n")); + goto free_hal_data; + } + +#ifdef CONFIG_PM + if (padapter->pwrctrlpriv.bSupportRemoteWakeup) { + dvobj->pusbdev->do_remote_wakeup = 1; + pusb_intf->needs_remote_wakeup = 1; + device_init_wakeup(&pusb_intf->dev, 1); + pr_debug("\n padapter->pwrctrlpriv.bSupportRemoteWakeup~~~~~~\n"); + pr_debug("\n padapter->pwrctrlpriv.bSupportRemoteWakeup~~~[%d]~~~\n", + device_may_wakeup(&pusb_intf->dev)); + } +#endif + + /* 2012-07-11 Move here to prevent the 8723AS-VAU BT auto + * suspend influence */ + if (usb_autopm_get_interface(pusb_intf) < 0) + pr_debug("can't get autopm:\n"); + + /* alloc dev name after read efuse. */ + rtw_init_netdev_name(pnetdev, padapter->registrypriv.ifname); + rtw_macaddr_cfg(padapter->eeprompriv.mac_addr); + memcpy(pnetdev->dev_addr, padapter->eeprompriv.mac_addr, ETH_ALEN); + pr_debug("MAC Address from pnetdev->dev_addr = %pM\n", + pnetdev->dev_addr); + + /* step 6. Tell the network stack we exist */ + if (register_netdev(pnetdev) != 0) { + RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("register_netdev() failed\n")); + goto free_hal_data; + } + + pr_debug("bDriverStopped:%d, bSurpriseRemoved:%d, bup:%d, hw_init_completed:%d\n" + , padapter->bDriverStopped + , padapter->bSurpriseRemoved + , padapter->bup + , padapter->hw_init_completed + ); + + status = _SUCCESS; + +free_hal_data: + if (status != _SUCCESS) + kfree(padapter->HalData); +free_adapter: + if (status != _SUCCESS) { + if (pnetdev) + rtw_free_netdev(pnetdev); + else + vfree(padapter); + padapter = NULL; + } +exit: + return padapter; +} + +static void rtw_usb_if1_deinit(struct adapter *if1) +{ + struct net_device *pnetdev = if1->pnetdev; + struct mlme_priv *pmlmepriv = &if1->mlmepriv; + + if (check_fwstate(pmlmepriv, _FW_LINKED)) + rtw_disassoc_cmd(if1, 0, false); + +#ifdef CPTCFG_88EU_AP_MODE + free_mlme_ap_info(if1); +#endif + + if (pnetdev) + unregister_netdev(pnetdev); /* will call netdev_close() */ + + rtl88eu_mon_deinit(if1->pmondev); + rtw_cancel_all_timer(if1); + + rtw_dev_unload(if1); + pr_debug("+r871xu_dev_remove, hw_init_completed=%d\n", + if1->hw_init_completed); + rtw_free_drv_sw(if1); + rtw_free_netdev(pnetdev); +} + +static int rtw_drv_init(struct usb_interface *pusb_intf, const struct usb_device_id *pdid) +{ + struct adapter *if1 = NULL; + struct dvobj_priv *dvobj; + + /* Initialize dvobj_priv */ + dvobj = usb_dvobj_init(pusb_intf); + if (!dvobj) { + RT_TRACE(_module_hci_intfs_c_, _drv_err_, + ("initialize device object priv Failed!\n")); + goto exit; + } + + if1 = rtw_usb_if1_init(dvobj, pusb_intf, pdid); + if (!if1) { + pr_debug("rtw_init_primarystruct adapter Failed!\n"); + goto free_dvobj; + } + + return 0; + +free_dvobj: + usb_dvobj_deinit(pusb_intf); +exit: + return -ENODEV; +} + +/* + * dev_remove() - our device is being removed +*/ +/* rmmod module & unplug(SurpriseRemoved) will call r871xu_dev_remove() => how to recognize both */ +static void rtw_dev_remove(struct usb_interface *pusb_intf) +{ + struct dvobj_priv *dvobj = usb_get_intfdata(pusb_intf); + struct adapter *padapter = dvobj->if1; + + pr_debug("+rtw_dev_remove\n"); + RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+dev_remove()\n")); + + if (!pusb_intf->unregistering) + padapter->bSurpriseRemoved = true; + + rtw_pm_set_ips(padapter, IPS_NONE); + rtw_pm_set_lps(padapter, PS_MODE_ACTIVE); + + LeaveAllPowerSaveMode(padapter); + + rtw_usb_if1_deinit(padapter); + + usb_dvobj_deinit(pusb_intf); + + RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-dev_remove()\n")); + pr_debug("-r871xu_dev_remove, done\n"); +} + +static struct usb_driver rtl8188e_usb_drv = { + .name = "r8188eu", + .probe = rtw_drv_init, + .disconnect = rtw_dev_remove, + .id_table = rtw_usb_id_tbl, + .suspend = rtw_suspend, + .resume = rtw_resume, + .reset_resume = rtw_resume, +}; + +module_usb_driver(rtl8188e_usb_drv) |