diff options
| -rw-r--r-- | drivers/platform/x86/acer-wmi.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index d80db0899382..ee40d681edd0 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -129,6 +129,20 @@ struct event_return_value { #define ACER_WMID3_GDS_THREEG (1<<6) /* 3G */ #define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */ +struct lm_input_params { + u8 function_num; /* Function Number */ + u16 commun_devices; /* Communication type devices default status */ + u16 devices; /* Other type devices default status */ + u8 lm_status; /* Launch Manager Status */ + u16 reserved; +} __attribute__((packed)); + +struct lm_return_value { + u8 error_code; /* Error Code */ + u8 ec_return_value; /* EC Return Value */ + u16 reserved; +} __attribute__((packed)); + struct wmid3_gds_input_param { /* Get Device Status input parameter */ u8 function_num; /* Function Number */ u8 hotkey_number; /* Hotkey Number */ @@ -179,16 +193,19 @@ static int mailled = -1; static int brightness = -1; static int threeg = -1; static int force_series; +static bool ec_raw_mode; static bool has_type_aa; module_param(mailled, int, 0444); module_param(brightness, int, 0444); module_param(threeg, int, 0444); module_param(force_series, int, 0444); +module_param(ec_raw_mode, bool, 0444); MODULE_PARM_DESC(mailled, "Set initial state of Mail LED"); MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness"); MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware"); MODULE_PARM_DESC(force_series, "Force a different laptop series"); +MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode"); struct acer_data { int mailled; @@ -1330,6 +1347,85 @@ static void acer_wmi_notify(u32 value, void *context) } } +static acpi_status +wmid3_set_lm_mode(struct lm_input_params *params, + struct lm_return_value *return_value) +{ + acpi_status status; + union acpi_object *obj; + + struct acpi_buffer input = { sizeof(struct lm_input_params), params }; + struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; + + status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &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 != 4) { + printk(ACER_WARNING "Unknown buffer length %d\n", + obj->buffer.length); + kfree(obj); + return AE_ERROR; + } + + *return_value = *((struct lm_return_value *)obj->buffer.pointer); + kfree(obj); + + return status; +} + +static int acer_wmi_enable_ec_raw(void) +{ + struct lm_return_value return_value; + acpi_status status; + struct lm_input_params params = { + .function_num = 0x1, + .commun_devices = 0xFFFF, + .devices = 0xFFFF, + .lm_status = 0x00, /* Launch Manager Deactive */ + }; + + status = wmid3_set_lm_mode(¶ms, &return_value); + + if (return_value.error_code || return_value.ec_return_value) + printk(ACER_WARNING "Enabling EC raw mode failed: " + "0x%x - 0x%x\n", return_value.error_code, + return_value.ec_return_value); + else + printk(ACER_INFO "Enabled EC raw mode"); + + return status; +} + +static int acer_wmi_enable_lm(void) +{ + struct lm_return_value return_value; + acpi_status status; + struct lm_input_params params = { + .function_num = 0x1, + .commun_devices = 0xFFFF, + .devices = 0xFFFF, + .lm_status = 0x01, /* Launch Manager Active */ + }; + + status = wmid3_set_lm_mode(¶ms, &return_value); + + if (return_value.error_code || return_value.ec_return_value) + printk(ACER_WARNING "Enabling Launch Manager failed: " + "0x%x - 0x%x\n", return_value.error_code, + return_value.ec_return_value); + + return status; +} + static int __init acer_wmi_input_setup(void) { acpi_status status; @@ -1618,6 +1714,20 @@ static int __init acer_wmi_init(void) "generic video driver\n"); } + if (wmi_has_guid(WMID_GUID3)) { + if (ec_raw_mode) { + if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) { + printk(ACER_ERR "Cannot enable EC raw mode\n"); + return -ENODEV; + } + } else if (ACPI_FAILURE(acer_wmi_enable_lm())) { + printk(ACER_ERR "Cannot enable Launch Manager mode\n"); + return -ENODEV; + } + } else if (ec_raw_mode) { + printk(ACER_INFO "No WMID EC raw mode enable method\n"); + } + if (wmi_has_guid(ACERWMID_EVENT_GUID)) { err = acer_wmi_input_setup(); if (err) |
