--- /dev/null
+
+#include "wifi_hal.h"
+#include "common.h"
+#include "sync.h"
+
+class WifiEvent
+{
+ /* TODO: remove this when nl headers are updated */
+ static const unsigned NL80211_ATTR_MAX_INTERNAL = 256;
+private:
+ struct nl_msg *mMsg;
+ struct genlmsghdr *mHeader;
+ struct nlattr *mAttributes[NL80211_ATTR_MAX_INTERNAL + 1];
+
+public:
+ WifiEvent(nl_msg *msg) {
+ mMsg = msg;
+ mHeader = NULL;
+ memset(mAttributes, 0, sizeof(mAttributes));
+ }
+ ~WifiEvent() {
+ /* don't destroy mMsg; it doesn't belong to us */
+ }
+
+ void log();
+
+ int parse();
+
+ genlmsghdr *header() {
+ return mHeader;
+ }
+
+ int get_cmd() {
+ return mHeader->cmd;
+ }
+
+ int get_vendor_id() {
+ return get_u32(NL80211_ATTR_VENDOR_ID);
+ }
+
+ int get_vendor_subcmd() {
+ return get_u32(NL80211_ATTR_VENDOR_SUBCMD);
+ }
+
+ void *get_vendor_data() {
+ return get_data(NL80211_ATTR_VENDOR_DATA);
+ }
+
+ int get_vendor_data_len() {
+ return get_len(NL80211_ATTR_VENDOR_DATA);
+ }
+
+ const char *get_cmdString();
+
+ nlattr ** attributes() {
+ return mAttributes;
+ }
+
+ nlattr *get_attribute(int attribute) {
+ return mAttributes[attribute];
+ }
+
+ uint8_t get_u8(int attribute) {
+ return mAttributes[attribute] ? nla_get_u8(mAttributes[attribute]) : 0;
+ }
+
+ uint16_t get_u16(int attribute) {
+ return mAttributes[attribute] ? nla_get_u16(mAttributes[attribute]) : 0;
+ }
+
+ uint32_t get_u32(int attribute) {
+ return mAttributes[attribute] ? nla_get_u32(mAttributes[attribute]) : 0;
+ }
+
+ uint64_t get_u64(int attribute) {
+ return mAttributes[attribute] ? nla_get_u64(mAttributes[attribute]) : 0;
+ }
+
+ int get_len(int attribute) {
+ return mAttributes[attribute] ? nla_len(mAttributes[attribute]) : 0;
+ }
+
+ void *get_data(int attribute) {
+ return mAttributes[attribute] ? nla_data(mAttributes[attribute]) : NULL;
+ }
+
+private:
+ WifiEvent(const WifiEvent&); // hide copy constructor to prevent copies
+};
+
+class nl_iterator {
+ struct nlattr *pos;
+ int rem;
+public:
+ nl_iterator(struct nlattr *attr) {
+ pos = (struct nlattr *)nla_data(attr);
+ rem = nla_len(attr);
+ }
+ bool has_next() {
+ return nla_ok(pos, rem);
+ }
+ void next() {
+ pos = (struct nlattr *)nla_next(pos, &(rem));
+ }
+ struct nlattr *get() {
+ return pos;
+ }
+ uint16_t get_type() {
+ return pos->nla_type;
+ }
+ uint8_t get_u8() {
+ return nla_get_u8(pos);
+ }
+ uint16_t get_u16() {
+ return nla_get_u16(pos);
+ }
+ uint32_t get_u32() {
+ return nla_get_u32(pos);
+ }
+ uint64_t get_u64() {
+ return nla_get_u64(pos);
+ }
+ void* get_data() {
+ return nla_data(pos);
+ }
+ int get_len() {
+ return nla_len(pos);
+ }
+private:
+ nl_iterator(const nl_iterator&); // hide copy constructor to prevent copies
+};
+
+class WifiRequest
+{
+private:
+ int mFamily;
+ int mIface;
+ struct nl_msg *mMsg;
+
+public:
+ WifiRequest(int family) {
+ mMsg = NULL;
+ mFamily = family;
+ mIface = -1;
+ }
+
+ WifiRequest(int family, int iface) {
+ mMsg = NULL;
+ mFamily = family;
+ mIface = iface;
+ }
+
+ ~WifiRequest() {
+ destroy();
+ }
+
+ void destroy() {
+ if (mMsg) {
+ nlmsg_free(mMsg);
+ mMsg = NULL;
+ }
+ }
+
+ nl_msg *getMessage() {
+ return mMsg;
+ }
+
+ /* Command assembly helpers */
+ int create(int family, uint8_t cmd, int flags, int hdrlen);
+ int create(uint8_t cmd) {
+ return create(mFamily, cmd, 0, 0);
+ }
+
+ int create(uint32_t id, int subcmd);
+
+ int put(int attribute, void *ptr, unsigned len) {
+ return nla_put(mMsg, attribute, len, ptr);
+ }
+ int put_u8(int attribute, uint8_t value) {
+ return nla_put(mMsg, attribute, sizeof(value), &value);
+ }
+ int put_u16(int attribute, uint16_t value) {
+ return nla_put(mMsg, attribute, sizeof(value), &value);
+ }
+ int put_u32(int attribute, uint32_t value) {
+ return nla_put(mMsg, attribute, sizeof(value), &value);
+ }
+ int put_u64(int attribute, uint64_t value) {
+ return nla_put(mMsg, attribute, sizeof(value), &value);
+ }
+ int put_string(int attribute, const char *value) {
+ return nla_put(mMsg, attribute, strlen(value) + 1, value);
+ }
+ int put_addr(int attribute, mac_addr value) {
+ return nla_put(mMsg, attribute, sizeof(mac_addr), value);
+ }
+
+ struct nlattr * attr_start(int attribute) {
+ return nla_nest_start(mMsg, attribute);
+ }
+ void attr_end(struct nlattr *attr) {
+ nla_nest_end(mMsg, attr);
+ }
+
+ int set_iface_id(int ifindex) {
+ return put_u32(NL80211_ATTR_IFINDEX, ifindex);
+ }
+private:
+ WifiRequest(const WifiRequest&); // hide copy constructor to prevent copies
+
+};
+
+class WifiCommand
+{
+protected:
+ hal_info *mInfo;
+ WifiRequest mMsg;
+ Condition mCondition;
+ wifi_request_id mId;
+ interface_info *mIfaceInfo;
+ int mRefs;
+public:
+ WifiCommand(wifi_handle handle, wifi_request_id id)
+ : mMsg(getHalInfo(handle)->nl80211_family_id), mId(id), mRefs(1)
+ {
+ mIfaceInfo = NULL;
+ mInfo = getHalInfo(handle);
+ // ALOGD("WifiCommand %p created, mInfo = %p, mIfaceInfo = %p", this, mInfo, mIfaceInfo);
+ }
+
+ WifiCommand(wifi_interface_handle iface, wifi_request_id id)
+ : mMsg(getHalInfo(iface)->nl80211_family_id, getIfaceInfo(iface)->id), mId(id), mRefs(1)
+ {
+ mIfaceInfo = getIfaceInfo(iface);
+ mInfo = getHalInfo(iface);
+ // ALOGD("WifiCommand %p created, mInfo = %p, mIfaceInfo = %p", this, mInfo, mIfaceInfo);
+ }
+
+ virtual ~WifiCommand() {
+ // ALOGD("WifiCommand %p destroyed", this);
+ }
+
+ wifi_request_id id() {
+ return mId;
+ }
+
+ virtual void addRef() {
+ __sync_add_and_fetch(&mRefs, 1);
+ //int refs = __sync_add_and_fetch(&mRefs, 1);
+ // ALOGD("addRef: WifiCommand %p has %d references", this, refs);
+ }
+
+ virtual void releaseRef() {
+ int refs = __sync_sub_and_fetch(&mRefs, 1);
+ if (refs == 0) {
+ delete this;
+ } else {
+ // ALOGD("releaseRef: WifiCommand %p has %d references", this, refs);
+ }
+ }
+
+ virtual int create() {
+ /* by default there is no way to cancel */
+ //ALOGD("WifiCommand %p can't be created", this);
+ return WIFI_ERROR_NOT_SUPPORTED;
+ }
+
+ virtual int cancel() {
+ /* by default there is no way to cancel */
+ return WIFI_ERROR_NOT_SUPPORTED;
+ }
+
+ int requestResponse();
+ int requestEvent(int cmd);
+ int requestVendorEvent(uint32_t id, int subcmd);
+ int requestResponse(WifiRequest& request);
+
+protected:
+ wifi_handle wifiHandle() {
+ return getWifiHandle(mInfo);
+ }
+
+ wifi_interface_handle ifaceHandle() {
+ return getIfaceHandle(mIfaceInfo);
+ }
+
+ int familyId() {
+ return mInfo->nl80211_family_id;
+ }
+
+ int ifaceId() {
+ return mIfaceInfo->id;
+ }
+
+ /* Override this method to parse reply and dig out data; save it in the object */
+ virtual int handleResponse(WifiEvent& reply) {
+ ALOGI("skipping a response");
+ return NL_SKIP;
+ }
+
+ /* Override this method to parse event and dig out data; save it in the object */
+ virtual int handleEvent(WifiEvent& event) {
+ ALOGI("skipping an event");
+ return NL_SKIP;
+ }
+
+ int registerHandler(int cmd) {
+ return wifi_register_handler(wifiHandle(), cmd, &event_handler, this);
+ }
+
+ void unregisterHandler(int cmd) {
+ wifi_unregister_handler(wifiHandle(), cmd);
+ }
+
+ int registerVendorHandler(uint32_t id, int subcmd) {
+ return wifi_register_vendor_handler(wifiHandle(), id, subcmd, &event_handler, this);
+ }
+
+ void unregisterVendorHandler(uint32_t id, int subcmd) {
+ wifi_unregister_vendor_handler(wifiHandle(), id, subcmd);
+ }
+
+private:
+ WifiCommand(const WifiCommand& ); // hide copy constructor to prevent copies
+
+ /* Event handling */
+ static int response_handler(struct nl_msg *msg, void *arg);
+
+ static int event_handler(struct nl_msg *msg, void *arg);
+
+ /* Other event handlers */
+ static int valid_handler(struct nl_msg *msg, void *arg);
+
+ static int ack_handler(struct nl_msg *msg, void *arg);
+
+ static int finish_handler(struct nl_msg *msg, void *arg);
+
+ static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err, void *arg);
+};
+
+/* nl message processing macros (required to pass C++ type checks) */
+
+#define for_each_attr(pos, nla, rem) \
+ for (pos = (nlattr *)nla_data(nla), rem = nla_len(nla); \
+ nla_ok(pos, rem); \
+ pos = (nlattr *)nla_next(pos, &(rem)))
+
projects / GitHub / MotorolaMobilityLLC / hardware-samsung_slsi-scsc_wifibt-wifi_hal.git / blobdiff