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// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
*
* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
*
******************************************************************************/
#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 == strncasecmp(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;
}
int rtw_android_priv_cmd(struct net_device *net, struct ifreq *ifr, int cmd)
{
int ret = 0;
char *command;
int cmd_num;
int bytes_written = 0;
struct android_wifi_priv_cmd priv_cmd;
if (!ifr->ifr_data)
return -EINVAL;
if (copy_from_user(&priv_cmd, ifr->ifr_data, sizeof(priv_cmd)))
return -EFAULT;
if (priv_cmd.total_len < 1)
return -EINVAL;
command = memdup_user(priv_cmd.buf, priv_cmd.total_len);
if (IS_ERR(command))
return PTR_ERR(command);
command[priv_cmd.total_len - 1] = 0;
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 free;
}
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:
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;
}
free:
kfree(command);
return ret;
}
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