diff options
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/acer-wmi.c | 111 |
1 files changed, 110 insertions, 1 deletions
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 48219117823b..5dc843bfc6c2 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -135,6 +135,7 @@ struct event_return_value { */ #define ACER_WMID3_GDS_WIRELESS (1<<0) /* WiFi */ #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */ +#define ACER_WMID3_GDS_WIMAX (1<<7) /* WiMAX */ #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */ struct lm_input_params { @@ -1142,6 +1143,114 @@ static acpi_status get_device_status(u32 *value, u32 cap) } } +static acpi_status wmid3_set_device_status(u32 value, u16 device) +{ + struct wmid3_gds_return_value return_value; + acpi_status status; + union acpi_object *obj; + u16 devices; + struct wmid3_gds_input_param params = { + .function_num = 0x1, + .hotkey_number = 0x01, + .devices = ACER_WMID3_GDS_WIRELESS & + ACER_WMID3_GDS_THREEG & + ACER_WMID3_GDS_WIMAX & + ACER_WMID3_GDS_BLUETOOTH, + }; + struct acpi_buffer input = { + sizeof(struct wmid3_gds_input_param), + ¶ms + }; + struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; + struct acpi_buffer output2 = { ACPI_ALLOCATE_BUFFER, NULL }; + + status = wmi_evaluate_method(WMID_GUID3, 0, 0x2, &input, &output); + if (ACPI_FAILURE(status)) + return status; + + obj = output.pointer; + + if (!obj) + return AE_ERROR; + else if (obj->type != ACPI_TYPE_BUFFER) { + kfree(obj); + return AE_ERROR; + } + if (obj->buffer.length != 8) { + pr_warning("Unknown buffer length %d\n", obj->buffer.length); + kfree(obj); + return AE_ERROR; + } + + return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); + kfree(obj); + + if (return_value.error_code || return_value.ec_return_value) { + pr_warning("Get Current Device Status failed: " + "0x%x - 0x%x\n", return_value.error_code, + return_value.ec_return_value); + return status; + } + + devices = return_value.devices; + params.function_num = 0x2; + params.hotkey_number = 0x01; + params.devices = (value) ? (devices | device) : (devices & ~device); + + status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output2); + if (ACPI_FAILURE(status)) + return status; + + obj = output2.pointer; + + if (!obj) + return AE_ERROR; + else if (obj->type != ACPI_TYPE_BUFFER) { + kfree(obj); + return AE_ERROR; + } + if (obj->buffer.length != 4) { + pr_warning("Unknown buffer length %d\n", obj->buffer.length); + kfree(obj); + return AE_ERROR; + } + + return_value = *((struct wmid3_gds_return_value *)obj->buffer.pointer); + kfree(obj); + + if (return_value.error_code || return_value.ec_return_value) + pr_warning("Set Device Status failed: " + "0x%x - 0x%x\n", return_value.error_code, + return_value.ec_return_value); + + return status; +} + +static acpi_status set_device_status(u32 value, u32 cap) +{ + if (wmi_has_guid(WMID_GUID3)) { + u16 device; + + switch (cap) { + case ACER_CAP_WIRELESS: + device = ACER_WMID3_GDS_WIRELESS; + break; + case ACER_CAP_BLUETOOTH: + device = ACER_WMID3_GDS_BLUETOOTH; + break; + case ACER_CAP_THREEG: + device = ACER_WMID3_GDS_THREEG; + break; + default: + return AE_ERROR; + } + return wmid3_set_device_status(value, device); + + } else { + return set_u32(value, cap); + } +} + /* * Rfkill devices */ @@ -1178,7 +1287,7 @@ static int acer_rfkill_set(void *data, bool blocked) u32 cap = (unsigned long)data; if (rfkill_inited) { - status = set_u32(!blocked, cap); + status = set_device_status(!blocked, cap); if (ACPI_FAILURE(status)) return -ENODEV; } |