diff options
| author | Maddest Chang <maddest.chang@mediatek.com> | 2015-07-10 19:39:05 +0800 |
|---|---|---|
| committer | Iliyan Malchev <malchev@google.com> | 2015-07-15 00:09:01 -0700 |
| commit | da1c7fa2901ad0d6158412d35d3c2b67f4c54518 (patch) | |
| tree | 5d8322a9947d72bb74cb17d1e9c3a31a16aefba1 | |
| parent | c96943046060b3aa1e0cd2fb3974dfa3aeacb7cc (diff) | |
| download | hardware_libhardware_legacy-da1c7fa2901ad0d6158412d35d3c2b67f4c54518.zip hardware_libhardware_legacy-da1c7fa2901ad0d6158412d35d3c2b67f4c54518.tar.gz hardware_libhardware_legacy-da1c7fa2901ad0d6158412d35d3c2b67f4c54518.tar.bz2 | |
make wifi_load_driver blocking
Modify wifi_load_driver behavior synchronize startHal with the initialization
of the wlan driver. This makes sure that on certain solutions, startHal will
does not fail due to no wlan0 net device not being found.
Bug:19888853
Change-Id: Ic6ec2211431c478e52eb516c40ec23c2e8945fbb
Signed-off-by: Maddest Chang <maddest.chang@mediatek.com>
Signed-off-by: Iliyan Malchev <malchev@google.com>
| -rw-r--r-- | wifi/Android.mk | 10 | ||||
| -rw-r--r-- | wifi/wifi.c | 38 |
2 files changed, 48 insertions, 0 deletions
diff --git a/wifi/Android.mk b/wifi/Android.mk index 99a4b0e..ed59b40 100644 --- a/wifi/Android.mk +++ b/wifi/Android.mk @@ -25,6 +25,16 @@ ifdef WIFI_DRIVER_FW_PATH_PARAM LOCAL_CFLAGS += -DWIFI_DRIVER_FW_PATH_PARAM=\"$(WIFI_DRIVER_FW_PATH_PARAM)\" endif +ifdef WIFI_DRIVER_STATE_CTRL_PARAM +LOCAL_CFLAGS += -DWIFI_DRIVER_STATE_CTRL_PARAM=\"$(WIFI_DRIVER_STATE_CTRL_PARAM)\" +endif +ifdef WIFI_DRIVER_STATE_ON +LOCAL_CFLAGS += -DWIFI_DRIVER_STATE_ON=\"$(WIFI_DRIVER_STATE_ON)\" +endif +ifdef WIFI_DRIVER_STATE_OFF +LOCAL_CFLAGS += -DWIFI_DRIVER_STATE_OFF=\"$(WIFI_DRIVER_STATE_OFF)\" +endif + LOCAL_SRC_FILES += wifi/wifi.c ifdef WPA_SUPPLICANT_VERSION diff --git a/wifi/wifi.c b/wifi/wifi.c index 4999f55..880f6fc 100644 --- a/wifi/wifi.c +++ b/wifi/wifi.c @@ -190,6 +190,30 @@ const char *get_dhcp_error_string() { return dhcp_lasterror(); } +#ifdef WIFI_DRIVER_STATE_CTRL_PARAM +int wifi_change_driver_state(const char *state) +{ + int len; + int fd; + int ret = 0; + + if (!state) + return -1; + fd = TEMP_FAILURE_RETRY(open(WIFI_DRIVER_STATE_CTRL_PARAM, O_WRONLY)); + if (fd < 0) { + ALOGE("Failed to open driver state control param (%s)", strerror(errno)); + return -1; + } + len = strlen(state) + 1; + if (TEMP_FAILURE_RETRY(write(fd, state, len)) != len) { + ALOGE("Failed to write driver state control param (%s)", strerror(errno)); + ret = -1; + } + close(fd); + return ret; +} +#endif + int is_wifi_driver_loaded() { char driver_status[PROPERTY_VALUE_MAX]; #ifdef WIFI_DRIVER_MODULE_PATH @@ -263,6 +287,14 @@ int wifi_load_driver() wifi_unload_driver(); return -1; #else +#ifdef WIFI_DRIVER_STATE_CTRL_PARAM + if (is_wifi_driver_loaded()) { + return 0; + } + + if (wifi_change_driver_state(WIFI_DRIVER_STATE_ON) < 0) + return -1; +#endif property_set(DRIVER_PROP_NAME, "ok"); return 0; #endif @@ -287,6 +319,12 @@ int wifi_unload_driver() } else return -1; #else +#ifdef WIFI_DRIVER_STATE_CTRL_PARAM + if (is_wifi_driver_loaded()) { + if (wifi_change_driver_state(WIFI_DRIVER_STATE_OFF) < 0) + return -1; + } +#endif property_set(DRIVER_PROP_NAME, "unloaded"); return 0; #endif |