1 files changed, 472 insertions, 0 deletions

diff --git a/drivers/staging/r8188eu/os_dep/usb_intf.c b/drivers/staging/r8188eu/os_dep/usb_intf.c
new file mode 100644
index 000000000..5fbfbcd95
--- /dev/null
+++ b/drivers/staging/r8188eu/os_dep/usb_intf.c
@@ -0,0 +1,472 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2007 - 2011 Realtek Corporation. */
+
+#include <linux/usb.h>
+#include "../include/osdep_service.h"
+#include "../include/drv_types.h"
+#include "../include/hal_intf.h"
+#include "../include/osdep_intf.h"
+#include "../include/usb_ops.h"
+#include "../include/usb_osintf.h"
+#include "../include/rtw_ioctl.h"
+#include "../include/rtl8188e_hal.h"
+
+int ui_pid[3] = {0, 0, 0};
+
+static int rtw_suspend(struct usb_interface *intf, pm_message_t message);
+static int rtw_resume(struct usb_interface *intf);
+
+static int rtw_drv_init(struct usb_interface *pusb_intf, const struct usb_device_id *pdid);
+static void rtw_dev_remove(struct usb_interface *pusb_intf);
+
+#define USB_VENDER_ID_REALTEK		0x0bda
+
+/* DID_USB_v916_20130116 */
+static 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 */
+	{USB_DEVICE(USB_VENDER_ID_REALTEK, 0xffef)}, /* Rosewill USB-N150 Nano */
+	/*=== Customer ID ===*/
+	/****** 8188EUS ********/
+	{USB_DEVICE(0x07B8, 0x8179)}, /* Abocom - Abocom */
+	{USB_DEVICE(0x0DF6, 0x0076)}, /* Sitecom N150 v2 */
+	{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(0x056E, 0x4008)}, /* Elecom WDC-150SU2M */
+	{USB_DEVICE(0x2357, 0x010c)}, /* TP-Link TL-WN722N v2 */
+	{USB_DEVICE(0x2357, 0x0111)}, /* TP-Link TL-WN727N v5.21 */
+	{USB_DEVICE(0x2C4E, 0x0102)}, /* MERCUSYS MW150US v2 */
+	{USB_DEVICE(0x0B05, 0x18F0)}, /* ASUS USB-N10 Nano B1 */
+	{USB_DEVICE(0x7392, 0xb811)}, /* Edimax EW-7811Un V2 */
+	{}	/* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE(usb, rtw_usb_id_tbl);
+
+struct rtw_usb_drv {
+	struct usb_driver usbdrv;
+	int drv_registered;
+	struct mutex hw_init_mutex;
+};
+
+static struct rtw_usb_drv rtl8188e_usb_drv = {
+	.usbdrv.name = KBUILD_MODNAME,
+	.usbdrv.probe = rtw_drv_init,
+	.usbdrv.disconnect = rtw_dev_remove,
+	.usbdrv.id_table = rtw_usb_id_tbl,
+	.usbdrv.suspend =  rtw_suspend,
+	.usbdrv.resume = rtw_resume,
+	.usbdrv.reset_resume   = rtw_resume,
+};
+
+static struct rtw_usb_drv *usb_drv = &rtl8188e_usb_drv;
+
+static struct dvobj_priv *usb_dvobj_init(struct usb_interface *usb_intf)
+{
+	int	i;
+	u8	rt_num_in_pipes = 0;
+	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)
+		goto err;
+
+	pdvobjpriv->pusbintf = usb_intf;
+	pusbd = interface_to_usbdev(usb_intf);
+	pdvobjpriv->pusbdev = pusbd;
+	usb_set_intfdata(usb_intf, pdvobjpriv);
+
+	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 = ep_num;
+			rt_num_in_pipes++;
+		} else if (usb_endpoint_is_bulk_out(pendp_desc)) {
+			pdvobjpriv->RtOutPipe[pdvobjpriv->RtNumOutPipes] =
+				ep_num;
+			pdvobjpriv->RtNumOutPipes++;
+		}
+	}
+
+	if (rt_num_in_pipes != 1)
+		goto err;
+
+	/* 3 misc */
+	rtw_reset_continual_urb_error(pdvobjpriv);
+
+	usb_get_dev(pusbd);
+	return pdvobjpriv;
+
+err:
+	kfree(pdvobjpriv);
+	return NULL;
+}
+
+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. */
+				usb_reset_device(interface_to_usbdev(usb_intf));
+		}
+		kfree(dvobj);
+	}
+
+	usb_put_dev(interface_to_usbdev(usb_intf));
+
+}
+
+static void usb_intf_start(struct adapter *padapter)
+{
+	rtl8188eu_inirp_init(padapter);
+}
+
+static void usb_intf_stop(struct adapter *padapter)
+{
+	/* cancel in irp */
+	rtw_read_port_cancel(padapter);
+
+	/* cancel out irp */
+	rtw_write_port_cancel(padapter);
+
+	/* todo:cancel other irps */
+}
+
+static void rtw_dev_unload(struct adapter *padapter)
+{
+	if (padapter->bup) {
+		padapter->bDriverStopped = true;
+		if (padapter->xmitpriv.ack_tx)
+			rtw_ack_tx_done(&padapter->xmitpriv, RTW_SCTX_DONE_DRV_STOP);
+		/* s3. */
+		if (padapter->intf_stop)
+			padapter->intf_stop(padapter);
+		/* s4. */
+		rtw_stop_drv_threads(padapter);
+
+		/* s5. */
+		if (!padapter->bSurpriseRemoved) {
+			rtw_hal_deinit(padapter);
+			padapter->bSurpriseRemoved = true;
+		}
+
+		padapter->bup = false;
+	}
+}
+
+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;
+
+	if ((!padapter->bup) || (padapter->bDriverStopped) ||
+	    (padapter->bSurpriseRemoved))
+		goto exit;
+
+	pwrpriv->bInSuspend = true;
+	rtw_cancel_all_timer(padapter);
+	LeaveAllPowerSaveMode(padapter);
+
+	mutex_lock(&pwrpriv->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))
+		pmlmepriv->to_roaming = 1;
+	/* s2-2.  indicate disconnect to os */
+	rtw_indicate_disconnect(padapter);
+	/* s2-3. */
+	rtw_free_assoc_resources(padapter, 1);
+	/* s2-4. */
+	rtw_free_network_queue(padapter, true);
+
+	rtw_dev_unload(padapter);
+	mutex_unlock(&pwrpriv->lock);
+
+	if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY))
+		rtw_indicate_scan_done(padapter);
+
+	if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING))
+		rtw_indicate_disconnect(padapter);
+
+exit:
+		return 0;
+}
+
+static int rtw_resume(struct usb_interface *pusb_intf)
+{
+	struct dvobj_priv *dvobj = usb_get_intfdata(pusb_intf);
+	struct adapter *padapter = dvobj->if1;
+	struct net_device *pnetdev;
+	struct pwrctrl_priv *pwrpriv = NULL;
+	int ret = -1;
+
+	pnetdev = padapter->pnetdev;
+	pwrpriv = &padapter->pwrctrlpriv;
+
+	mutex_lock(&pwrpriv->lock);
+	rtw_reset_drv_sw(padapter);
+	if (pwrpriv)
+		pwrpriv->bkeepfwalive = false;
+
+	if (netdev_open(pnetdev) != 0) {
+		mutex_unlock(&pwrpriv->lock);
+		goto exit;
+	}
+
+	netif_device_attach(pnetdev);
+	netif_carrier_on(pnetdev);
+
+	mutex_unlock(&pwrpriv->lock);
+
+	if (padapter->pid[1] != 0)
+		rtw_signal_process(padapter->pid[1], SIGUSR2);
+
+	rtw_roaming(padapter, NULL);
+
+	ret = 0;
+exit:
+	if (pwrpriv)
+		pwrpriv->bInSuspend = false;
+
+	return ret;
+}
+
+/*
+ * 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 int rtw_usb_if1_init(struct dvobj_priv *dvobj, struct usb_interface *pusb_intf)
+{
+	struct adapter *padapter = NULL;
+	struct net_device *pnetdev = NULL;
+	struct io_priv *piopriv;
+	struct intf_hdl *pintf;
+	int ret;
+
+	padapter = vzalloc(sizeof(*padapter));
+	if (!padapter)
+		return -ENOMEM;
+
+	padapter->dvobj = dvobj;
+	dvobj->if1 = padapter;
+
+	padapter->bDriverStopped = true;
+
+	padapter->hw_init_mutex = &usb_drv->hw_init_mutex;
+
+	rtw_handle_dualmac(padapter, 1);
+
+	pnetdev = rtw_init_netdev(padapter);
+	if (!pnetdev) {
+		ret = -ENODEV;
+		goto handle_dualmac;
+	}
+	SET_NETDEV_DEV(pnetdev, dvobj_to_dev(dvobj));
+	padapter = rtw_netdev_priv(pnetdev);
+
+	padapter->intf_start = &usb_intf_start;
+	padapter->intf_stop = &usb_intf_stop;
+
+	/* step init_io_priv */
+	piopriv = &padapter->iopriv;
+	pintf = &piopriv->intf;
+	piopriv->padapter = padapter;
+	pintf->padapter = padapter;
+	pintf->pintf_dev = adapter_to_dvobj(padapter);
+
+	/* step read_chip_version */
+	rtl8188e_read_chip_version(padapter);
+
+	/* step usb endpoint mapping */
+	ret = rtl8188eu_interface_configure(padapter);
+	if (ret)
+		goto handle_dualmac;
+
+	/* step read efuse/eeprom data and get mac_addr */
+	ret = ReadAdapterInfo8188EU(padapter);
+	if (ret)
+		goto handle_dualmac;
+
+	/* step 5. */
+	if (rtw_init_drv_sw(padapter) == _FAIL) {
+		ret = -ENODEV;
+		goto handle_dualmac;
+	}
+
+#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);
+	}
+#endif
+
+	/* 2012-07-11 Move here to prevent the 8723AS-VAU BT auto
+	 * suspend influence */
+	usb_autopm_get_interface(pusb_intf);
+
+	/*  alloc dev name after read efuse. */
+	ret = rtw_init_netdev_name(pnetdev, padapter->registrypriv.ifname);
+	if (ret)
+		goto free_drv_sw;
+	rtw_macaddr_cfg(padapter->eeprompriv.mac_addr);
+	rtw_init_wifidirect_addrs(padapter, padapter->eeprompriv.mac_addr,
+				  padapter->eeprompriv.mac_addr);
+	eth_hw_addr_set(pnetdev, padapter->eeprompriv.mac_addr);
+
+	/* step 6. Tell the network stack we exist */
+	ret = register_netdev(pnetdev);
+	if (ret)
+		goto free_drv_sw;
+
+	return 0;
+
+free_drv_sw:
+	rtw_cancel_all_timer(padapter);
+	rtw_free_drv_sw(padapter);
+handle_dualmac:
+	rtw_handle_dualmac(padapter, 0);
+	if (pnetdev)
+		rtw_free_netdev(pnetdev);
+	else
+		vfree(padapter);
+
+	return ret;
+}
+
+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);
+
+	free_mlme_ap_info(if1);
+
+	if (pnetdev) {
+		/* will call netdev_close() */
+		unregister_netdev(pnetdev);
+	}
+	rtw_cancel_all_timer(if1);
+
+	rtw_dev_unload(if1);
+	rtw_handle_dualmac(if1, 0);
+	rtw_free_drv_sw(if1);
+	if (pnetdev)
+		rtw_free_netdev(pnetdev);
+}
+
+static int rtw_drv_init(struct usb_interface *pusb_intf, const struct usb_device_id *pdid)
+{
+	struct dvobj_priv *dvobj;
+	int ret;
+
+	/* Initialize dvobj_priv */
+	dvobj = usb_dvobj_init(pusb_intf);
+	if (!dvobj)
+		return -ENODEV;
+
+	ret = rtw_usb_if1_init(dvobj, pusb_intf);
+	if (ret) {
+		usb_dvobj_deinit(pusb_intf);
+		return ret;
+	}
+
+	if (ui_pid[1] != 0)
+		rtw_signal_process(ui_pid[1], SIGUSR2);
+
+	return 0;
+}
+
+/*
+ * 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;
+
+	if (usb_drv->drv_registered)
+		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);
+}
+
+static int __init rtw_drv_entry(void)
+{
+	mutex_init(&usb_drv->hw_init_mutex);
+
+	usb_drv->drv_registered = true;
+	return usb_register(&usb_drv->usbdrv);
+}
+
+static void __exit rtw_drv_halt(void)
+{
+	usb_drv->drv_registered = false;
+	usb_deregister(&usb_drv->usbdrv);
+
+	mutex_destroy(&usb_drv->hw_init_mutex);
+}
+
+module_init(rtw_drv_entry);
+module_exit(rtw_drv_halt);