WiFi: enable any combination of STA/AP/P2P/NAN interfaces.
The total number of interfaces is still limited to 2,
will be addressed in a separate change.
Bug: 36120314
Test: KitchenSink (see go/aae-dual-ap)
Test: b/120081854
Change-Id: I8962c5167fcbe55805fce320f639d37b4b902c5c
diff --git a/wifi/1.3/default/wifi_feature_flags.cpp b/wifi/1.3/default/wifi_feature_flags.cpp
index 8d48c36..17b3bee 100644
--- a/wifi/1.3/default/wifi_feature_flags.cpp
+++ b/wifi/1.3/default/wifi_feature_flags.cpp
@@ -16,25 +16,6 @@
#include "wifi_feature_flags.h"
-namespace {
-#ifdef WIFI_HIDL_FEATURE_AWARE
-static const bool wifiHidlFeatureAware = true;
-#else
-static const bool wifiHidlFeatureAware = false;
-#endif // WIFI_HIDL_FEATURE_AWARE
-#ifdef WIFI_HIDL_FEATURE_DUAL_INTERFACE
-static const bool wifiHidlFeatureDualInterface = true;
-#else
-static const bool wifiHidlFeatureDualInterface = false;
-#endif // WIFI_HIDL_FEATURE_DUAL_INTERFACE
-#ifdef WIFI_HIDL_FEATURE_DISABLE_AP
-static const bool wifiHidlFeatureDisableAp = true;
-#else
-static const bool wifiHidlFeatureDisableAp = false;
-#endif // WIFI_HIDL_FEATURE_DISABLE_AP
-
-} // namespace
-
namespace android {
namespace hardware {
namespace wifi {
@@ -42,12 +23,132 @@
namespace implementation {
namespace feature_flags {
+using V1_0::ChipModeId;
+using V1_0::IfaceType;
+using V1_0::IWifiChip;
+
+/* The chip may either have a single mode supporting any number of combinations,
+ * or a fixed dual-mode (so it involves firmware loading to switch between
+ * modes) setting. If there is a need to support more modes, it needs to be
+ * implemented manually in WiFi HAL (see changeFirmwareMode in
+ * WifiChip::handleChipConfiguration).
+ *
+ * Supported combinations are defined in device's makefile, for example:
+ * WIFI_HAL_INTERFACE_COMBINATIONS := {{{STA, AP}, 1}, {{P2P, NAN}, 1}},
+ * WIFI_HAL_INTERFACE_COMBINATIONS += {{{STA}, 1}, {{AP}, 2}}
+ * What means:
+ * Interface combination 1: 1 STA or AP and 1 P2P or NAN concurrent iface
+ * operations.
+ * Interface combination 2: 1 STA and 2 AP concurrent iface operations.
+ *
+ * For backward compatibility, the following makefile flags can be used to
+ * generate combinations list:
+ * - WIFI_HIDL_FEATURE_DUAL_INTERFACE
+ * - WIFI_HIDL_FEATURE_DISABLE_AP
+ * - WIFI_HIDL_FEATURE_AWARE
+ * However, they are ignored if WIFI_HAL_INTERFACE_COMBINATIONS was provided.
+ * With WIFI_HIDL_FEATURE_DUAL_INTERFACE flag set, there is a single mode with
+ * two interface combinations:
+ * Interface Combination 1: Will support 1 STA and 1 P2P or NAN (optional)
+ * concurrent iface operations.
+ * Interface Combination 2: Will support 1 STA and 1 AP concurrent
+ * iface operations.
+ *
+ * The only dual-mode configuration supported is for alternating STA and AP
+ * mode, that may involve firmware reloading. In such case, there are 2 separate
+ * modes of operation with 1 interface combination each:
+ * Mode 1 (STA mode): Will support 1 STA and 1 P2P or NAN (optional)
+ * concurrent iface operations.
+ * Mode 2 (AP mode): Will support 1 AP iface operation.
+ *
+ * If Aware is enabled, the iface combination will be modified to support either
+ * P2P or NAN in place of just P2P.
+ */
+// clang-format off
+#ifdef WIFI_HAL_INTERFACE_COMBINATIONS
+constexpr ChipModeId kMainModeId = chip_mode_ids::kV3;
+#elif defined(WIFI_HIDL_FEATURE_DUAL_INTERFACE)
+// former V2 (fixed dual interface) setup expressed as V3
+constexpr ChipModeId kMainModeId = chip_mode_ids::kV3;
+# ifdef WIFI_HIDL_FEATURE_DISABLE_AP
+# ifdef WIFI_HIDL_FEATURE_AWARE
+// 1 STA + 1 of (P2P or NAN)
+# define WIFI_HAL_INTERFACE_COMBINATIONS {{{STA}, 1}, {{P2P, NAN}, 1}}
+# else
+// 1 STA + 1 P2P
+# define WIFI_HAL_INTERFACE_COMBINATIONS {{{STA}, 1}, {{P2P}, 1}}
+# endif
+# else
+# ifdef WIFI_HIDL_FEATURE_AWARE
+// (1 STA + 1 AP) or (1 STA + 1 of (P2P or NAN))
+# define WIFI_HAL_INTERFACE_COMBINATIONS {{{STA}, 1}, {{AP}, 1}},\
+ {{{STA}, 1}, {{P2P, NAN}, 1}}
+# else
+// (1 STA + 1 AP) or (1 STA + 1 P2P)
+# define WIFI_HAL_INTERFACE_COMBINATIONS {{{STA}, 1}, {{AP}, 1}},\
+ {{{STA}, 1}, {{P2P}, 1}}
+# endif
+# endif
+#else
+// V1 (fixed single interface, dual-mode chip)
+constexpr ChipModeId kMainModeId = chip_mode_ids::kV1Sta;
+# ifdef WIFI_HIDL_FEATURE_AWARE
+// 1 STA + 1 of (P2P or NAN)
+# define WIFI_HAL_INTERFACE_COMBINATIONS {{{STA}, 1}, {{P2P, NAN}, 1}}
+# else
+// 1 STA + 1 P2P
+# define WIFI_HAL_INTERFACE_COMBINATIONS {{{STA}, 1}, {{P2P}, 1}}
+# endif
+
+# ifndef WIFI_HIDL_FEATURE_DISABLE_AP
+# define WIFI_HAL_INTERFACE_COMBINATIONS_AP {{{AP}, 1}}
+# endif
+#endif
+// clang-format on
+
+/**
+ * Helper class to convert a collection of combination limits to a combination.
+ *
+ * The main point here is to simplify the syntax required by
+ * WIFI_HAL_INTERFACE_COMBINATIONS.
+ */
+struct ChipIfaceCombination
+ : public hidl_vec<IWifiChip::ChipIfaceCombinationLimit> {
+ ChipIfaceCombination(
+ const std::initializer_list<IWifiChip::ChipIfaceCombinationLimit> list)
+ : hidl_vec(list) {}
+
+ operator IWifiChip::ChipIfaceCombination() const { return {*this}; }
+
+ static hidl_vec<IWifiChip::ChipIfaceCombination> make_vec(
+ const std::initializer_list<ChipIfaceCombination> list) {
+ return hidl_vec<IWifiChip::ChipIfaceCombination>( //
+ std::begin(list), std::end(list));
+ }
+};
+
+#define STA IfaceType::STA
+#define AP IfaceType::AP
+#define P2P IfaceType::P2P
+#define NAN IfaceType::NAN
+static const std::vector<IWifiChip::ChipMode> kChipModes{
+ {kMainModeId,
+ ChipIfaceCombination::make_vec({WIFI_HAL_INTERFACE_COMBINATIONS})},
+#ifdef WIFI_HAL_INTERFACE_COMBINATIONS_AP
+ {chip_mode_ids::kV1Ap,
+ ChipIfaceCombination::make_vec({WIFI_HAL_INTERFACE_COMBINATIONS_AP})},
+#endif
+};
+#undef STA
+#undef AP
+#undef P2P
+#undef NAN
+
WifiFeatureFlags::WifiFeatureFlags() {}
-bool WifiFeatureFlags::isAwareSupported() { return wifiHidlFeatureAware; }
-bool WifiFeatureFlags::isDualInterfaceSupported() {
- return wifiHidlFeatureDualInterface;
+
+std::vector<IWifiChip::ChipMode> WifiFeatureFlags::getChipModes() {
+ return kChipModes;
}
-bool WifiFeatureFlags::isApDisabled() { return wifiHidlFeatureDisableAp; }
} // namespace feature_flags
} // namespace implementation