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#include <stdlib.h>
#include <netlink/handlers.h>
#include "wifi_hal.h"
#include "common.h"
interface_info *getIfaceInfo(wifi_interface_handle handle)
{
return (interface_info *)handle;
}
wifi_handle getWifiHandle(wifi_interface_handle handle)
{
return getIfaceInfo(handle)->handle;
}
hal_info *getHalInfo(wifi_handle handle)
{
return (hal_info *)handle;
}
hal_info *getHalInfo(wifi_interface_handle handle)
{
return getHalInfo(getWifiHandle(handle));
}
wifi_handle getWifiHandle(hal_info *info)
{
return (wifi_handle)info;
}
wifi_interface_handle getIfaceHandle(interface_info *info)
{
return (wifi_interface_handle)info;
}
wifi_error wifi_register_handler(wifi_handle handle, int cmd, nl_recvmsg_msg_cb_t func, void *arg)
{
hal_info *info = (hal_info *)handle;
/* TODO: check for multiple handlers? */
if (info->num_event_cb < info->alloc_event_cb) {
info->event_cb[info->num_event_cb].nl_cmd = cmd;
info->event_cb[info->num_event_cb].vendor_id = 0;
info->event_cb[info->num_event_cb].vendor_subcmd = 0;
info->event_cb[info->num_event_cb].cb_func = func;
info->event_cb[info->num_event_cb].cb_arg = arg;
info->num_event_cb++;
ALOGI("Successfully added event handler %p for command %d", func, cmd);
return WIFI_SUCCESS;
} else {
return WIFI_ERROR_OUT_OF_MEMORY;
}
}
wifi_error wifi_register_vendor_handler(wifi_handle handle,
uint32_t id, int subcmd, nl_recvmsg_msg_cb_t func, void *arg)
{
hal_info *info = (hal_info *)handle;
/* TODO: check for multiple handlers? */
if (info->num_event_cb < info->alloc_event_cb) {
info->event_cb[info->num_event_cb].nl_cmd = NL80211_CMD_VENDOR;
info->event_cb[info->num_event_cb].vendor_id = id;
info->event_cb[info->num_event_cb].vendor_subcmd = subcmd;
info->event_cb[info->num_event_cb].cb_func = func;
info->event_cb[info->num_event_cb].cb_arg = arg;
info->num_event_cb++;
ALOGI("Successfully added event handler %p for vendor 0x%0x", func, id);
return WIFI_SUCCESS;
} else {
return WIFI_ERROR_OUT_OF_MEMORY;
}
}
void wifi_unregister_handler(wifi_handle handle, int cmd)
{
hal_info *info = (hal_info *)handle;
if (cmd == NL80211_CMD_VENDOR) {
ALOGE("Must use wifi_unregister_vendor_handler to remove vendor handlers");
}
for (int i = 0; i < info->num_event_cb; i++) {
if (info->event_cb[i].nl_cmd == cmd) {
memmove(&info->event_cb[i], &info->event_cb[i+1],
(info->num_event_cb - i) * sizeof(cb_info));
info->num_event_cb--;
ALOGI("Successfully removed event handler for command %d", cmd);
return;
}
}
}
void wifi_unregister_vendor_handler(wifi_handle handle, uint32_t id, int subcmd)
{
hal_info *info = (hal_info *)handle;
for (int i = 0; i < info->num_event_cb; i++) {
if (info->event_cb[i].nl_cmd == NL80211_CMD_VENDOR
&& info->event_cb[i].vendor_id == id
&& info->event_cb[i].vendor_subcmd == subcmd) {
memmove(&info->event_cb[i], &info->event_cb[i+1],
(info->num_event_cb - i) * sizeof(cb_info));
info->num_event_cb--;
ALOGI("Successfully removed event handler for vendor 0x%0x", id);
return;
}
}
}
wifi_error wifi_register_cmd(wifi_handle handle, int id, WifiCommand *cmd)
{
hal_info *info = (hal_info *)handle;
ALOGD("registering command %d", id);
if (info->num_cmd < info->alloc_cmd) {
info->cmd[info->num_cmd].id = id;
info->cmd[info->num_cmd].cmd = cmd;
info->num_cmd++;
ALOGI("Successfully added command %d: %p", id, cmd);
return WIFI_SUCCESS;
} else {
return WIFI_ERROR_OUT_OF_MEMORY;
}
}
WifiCommand *wifi_unregister_cmd(wifi_handle handle, int id)
{
hal_info *info = (hal_info *)handle;
ALOGD("un-registering command %d", id);
for (int i = 0; i < info->num_cmd; i++) {
if (info->cmd[i].id == id) {
WifiCommand *cmd = info->cmd[i].cmd;
memmove(&info->cmd[i], &info->cmd[i+1], (info->num_cmd - i) * sizeof(cmd_info));
info->num_cmd--;
ALOGI("Successfully removed command %d: %p", id, cmd);
return cmd;
}
}
return NULL;
}
void wifi_unregister_cmd(wifi_handle handle, WifiCommand *cmd)
{
hal_info *info = (hal_info *)handle;
for (int i = 0; i < info->num_cmd; i++) {
if (info->cmd[i].cmd == cmd) {
int id = info->cmd[i].id;
memmove(&info->cmd[i], &info->cmd[i+1], (info->num_cmd - i) * sizeof(cmd_info));
info->num_cmd--;
ALOGI("Successfully removed command %d: %p", id, cmd);
return;
}
}
}
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