| /****************************************************************************** |
| * |
| * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| * |
| * |
| ******************************************************************************/ |
| |
| #include <linux/module.h> |
| #include <linux/netdevice.h> |
| |
| #include <rtw_android.h> |
| #include <osdep_service.h> |
| #include <rtw_debug.h> |
| #include <rtw_ioctl_set.h> |
| |
| static const char *android_wifi_cmd_str[ANDROID_WIFI_CMD_MAX] = { |
| "START", |
| "STOP", |
| "SCAN-ACTIVE", |
| "SCAN-PASSIVE", |
| "RSSI", |
| "LINKSPEED", |
| "RXFILTER-START", |
| "RXFILTER-STOP", |
| "RXFILTER-ADD", |
| "RXFILTER-REMOVE", |
| "BTCOEXSCAN-START", |
| "BTCOEXSCAN-STOP", |
| "BTCOEXMODE", |
| "SETSUSPENDOPT", |
| "P2P_DEV_ADDR", |
| "SETFWPATH", |
| "SETBAND", |
| "GETBAND", |
| "COUNTRY", |
| "P2P_SET_NOA", |
| "P2P_GET_NOA", |
| "P2P_SET_PS", |
| "SET_AP_WPS_P2P_IE", |
| "MACADDR", |
| "BLOCK", |
| "WFD-ENABLE", |
| "WFD-DISABLE", |
| "WFD-SET-TCPPORT", |
| "WFD-SET-MAXTPUT", |
| "WFD-SET-DEVTYPE", |
| }; |
| |
| struct android_wifi_priv_cmd { |
| const char __user *buf; |
| int used_len; |
| int total_len; |
| }; |
| |
| /** |
| * Local (static) functions and variables |
| */ |
| |
| /* Initialize g_wifi_on to 1 so dhd_bus_start will be called for the first |
| * time (only) in dhd_open, subsequential wifi on will be handled by |
| * wl_android_wifi_on |
| */ |
| static int g_wifi_on = true; |
| |
| int rtw_android_cmdstr_to_num(char *cmdstr) |
| { |
| int cmd_num; |
| for (cmd_num = 0; cmd_num < ANDROID_WIFI_CMD_MAX; cmd_num++) |
| if (0 == strnicmp(cmdstr , android_wifi_cmd_str[cmd_num], |
| strlen(android_wifi_cmd_str[cmd_num]))) |
| break; |
| return cmd_num; |
| } |
| |
| static int rtw_android_get_rssi(struct net_device *net, char *command, |
| int total_len) |
| { |
| struct adapter *padapter = (struct adapter *)rtw_netdev_priv(net); |
| struct mlme_priv *pmlmepriv = &(padapter->mlmepriv); |
| struct wlan_network *pcur_network = &pmlmepriv->cur_network; |
| int bytes_written = 0; |
| |
| if (check_fwstate(pmlmepriv, _FW_LINKED)) { |
| bytes_written += snprintf(&command[bytes_written], total_len, |
| "%s rssi %d", |
| pcur_network->network.Ssid.Ssid, |
| padapter->recvpriv.rssi); |
| } |
| return bytes_written; |
| } |
| |
| static int rtw_android_get_link_speed(struct net_device *net, char *command, |
| int total_len) |
| { |
| struct adapter *padapter = (struct adapter *)rtw_netdev_priv(net); |
| u16 link_speed; |
| |
| link_speed = rtw_get_cur_max_rate(padapter) / 10; |
| return snprintf(command, total_len, "LinkSpeed %d", |
| link_speed); |
| } |
| |
| static int rtw_android_get_macaddr(struct net_device *net, char *command, |
| int total_len) |
| { |
| return snprintf(command, total_len, "Macaddr = %pM", |
| net->dev_addr); |
| } |
| |
| static int android_set_cntry(struct net_device *net, char *command, |
| int total_len) |
| { |
| struct adapter *adapter = (struct adapter *)rtw_netdev_priv(net); |
| char *country_code = command + strlen(android_wifi_cmd_str[ANDROID_WIFI_CMD_COUNTRY]) + 1; |
| int ret; |
| |
| ret = rtw_set_country(adapter, country_code); |
| return (ret == _SUCCESS) ? 0 : -1; |
| } |
| |
| static int android_get_p2p_addr(struct net_device *net, char *command, |
| int total_len) |
| { |
| /* We use the same address as our HW MAC address */ |
| memcpy(command, net->dev_addr, ETH_ALEN); |
| return ETH_ALEN; |
| } |
| |
| static int rtw_android_set_block(struct net_device *net, char *command, |
| int total_len) |
| { |
| return 0; |
| } |
| |
| int rtw_android_priv_cmd(struct net_device *net, struct ifreq *ifr, int cmd) |
| { |
| int ret = 0; |
| char *command = NULL; |
| int cmd_num; |
| int bytes_written = 0; |
| struct android_wifi_priv_cmd priv_cmd; |
| |
| if (!ifr->ifr_data) { |
| ret = -EINVAL; |
| goto exit; |
| } |
| if (copy_from_user(&priv_cmd, ifr->ifr_data, |
| sizeof(struct android_wifi_priv_cmd))) { |
| ret = -EFAULT; |
| goto exit; |
| } |
| command = kmalloc(priv_cmd.total_len, GFP_KERNEL); |
| if (!command) { |
| DBG_88E("%s: failed to allocate memory\n", __func__); |
| ret = -ENOMEM; |
| goto exit; |
| } |
| if (!access_ok(VERIFY_READ, priv_cmd.buf, priv_cmd.total_len)) { |
| DBG_88E("%s: failed to access memory\n", __func__); |
| ret = -EFAULT; |
| goto exit; |
| } |
| if (copy_from_user(command, (char __user *)priv_cmd.buf, |
| priv_cmd.total_len)) { |
| ret = -EFAULT; |
| goto exit; |
| } |
| DBG_88E("%s: Android private cmd \"%s\" on %s\n", |
| __func__, command, ifr->ifr_name); |
| cmd_num = rtw_android_cmdstr_to_num(command); |
| switch (cmd_num) { |
| case ANDROID_WIFI_CMD_START: |
| goto response; |
| case ANDROID_WIFI_CMD_SETFWPATH: |
| goto response; |
| } |
| if (!g_wifi_on) { |
| DBG_88E("%s: Ignore private cmd \"%s\" - iface %s is down\n", |
| __func__, command, ifr->ifr_name); |
| ret = 0; |
| goto exit; |
| } |
| switch (cmd_num) { |
| case ANDROID_WIFI_CMD_STOP: |
| break; |
| case ANDROID_WIFI_CMD_SCAN_ACTIVE: |
| break; |
| case ANDROID_WIFI_CMD_SCAN_PASSIVE: |
| break; |
| case ANDROID_WIFI_CMD_RSSI: |
| bytes_written = rtw_android_get_rssi(net, command, |
| priv_cmd.total_len); |
| break; |
| case ANDROID_WIFI_CMD_LINKSPEED: |
| bytes_written = rtw_android_get_link_speed(net, command, |
| priv_cmd.total_len); |
| break; |
| case ANDROID_WIFI_CMD_MACADDR: |
| bytes_written = rtw_android_get_macaddr(net, command, |
| priv_cmd.total_len); |
| break; |
| case ANDROID_WIFI_CMD_BLOCK: |
| bytes_written = rtw_android_set_block(net, command, |
| priv_cmd.total_len); |
| break; |
| case ANDROID_WIFI_CMD_RXFILTER_START: |
| break; |
| case ANDROID_WIFI_CMD_RXFILTER_STOP: |
| break; |
| case ANDROID_WIFI_CMD_RXFILTER_ADD: |
| break; |
| case ANDROID_WIFI_CMD_RXFILTER_REMOVE: |
| break; |
| case ANDROID_WIFI_CMD_BTCOEXSCAN_START: |
| /* TBD: BTCOEXSCAN-START */ |
| break; |
| case ANDROID_WIFI_CMD_BTCOEXSCAN_STOP: |
| /* TBD: BTCOEXSCAN-STOP */ |
| break; |
| case ANDROID_WIFI_CMD_BTCOEXMODE: |
| break; |
| case ANDROID_WIFI_CMD_SETSUSPENDOPT: |
| break; |
| case ANDROID_WIFI_CMD_SETBAND: |
| break; |
| case ANDROID_WIFI_CMD_GETBAND: |
| break; |
| case ANDROID_WIFI_CMD_COUNTRY: |
| bytes_written = android_set_cntry(net, command, |
| priv_cmd.total_len); |
| break; |
| case ANDROID_WIFI_CMD_P2P_DEV_ADDR: |
| bytes_written = android_get_p2p_addr(net, command, |
| priv_cmd.total_len); |
| break; |
| case ANDROID_WIFI_CMD_P2P_SET_NOA: |
| break; |
| case ANDROID_WIFI_CMD_P2P_GET_NOA: |
| break; |
| case ANDROID_WIFI_CMD_P2P_SET_PS: |
| break; |
| default: |
| DBG_88E("Unknown PRIVATE command %s - ignored\n", command); |
| snprintf(command, 3, "OK"); |
| bytes_written = strlen("OK"); |
| } |
| |
| response: |
| if (bytes_written >= 0) { |
| if ((bytes_written == 0) && (priv_cmd.total_len > 0)) |
| command[0] = '\0'; |
| if (bytes_written >= priv_cmd.total_len) { |
| DBG_88E("%s: bytes_written = %d\n", __func__, |
| bytes_written); |
| bytes_written = priv_cmd.total_len; |
| } else { |
| bytes_written++; |
| } |
| priv_cmd.used_len = bytes_written; |
| if (copy_to_user((char __user *)priv_cmd.buf, command, |
| bytes_written)) { |
| DBG_88E("%s: failed to copy data to user buffer\n", |
| __func__); |
| ret = -EFAULT; |
| } |
| } else { |
| ret = bytes_written; |
| } |
| exit: |
| kfree(command); |
| return ret; |
| } |