Add CC. Thomas
æ æï2010-10-31 æ 00:36 +0800ïLee, Chun-Yi æåï
> Enabled Acer Launch Manager mode to disable the EC raw behavior for
> communication devices when WMID3 method available. And, we also add a
> ec_raw_mode kernel module option for enable The EC raw behavior mode
> when anyone what reset it back.
> When Acer Launch Manager mode enabled, EC will stop to touch any
> communication devices' RF state or power state that causes conflict
> with rfkill_input or any userland daemon to charge the rfkill rules.
>
> Signed-off-by: Lee, Chun-Yi <jlee@xxxxxxxxxx>
> ---
> drivers/platform/x86/acer-wmi.c | 113 +++++++++++++++++++++++++++++++++++++++
> 1 files changed, 113 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
> index 930df56..0b870d3 100644
> --- a/drivers/platform/x86/acer-wmi.c
> +++ b/drivers/platform/x86/acer-wmi.c
> @@ -85,6 +85,7 @@ MODULE_LICENSE("GPL");
> #define AMW0_GUID2 "431F16ED-0C2B-444C-B267-27DEB140CF9C"
> #define WMID_GUID1 "6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3"
> #define WMID_GUID2 "95764E09-FB56-4e83-B31A-37761F60994A"
> +#define WMID_GUID3 "61EF69EA-865C-4BC3-A502-A0DEBA0CB531"
>
> /*
> * Acer ACPI event GUIDs
> @@ -120,6 +121,20 @@ struct event_return_value {
> u32 reserved;
> } __attribute__((packed));
>
> +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));
> +
> /*
> * Interface capability flags
> */
> @@ -150,15 +165,18 @@ static int mailled = -1;
> static int brightness = -1;
> static int threeg = -1;
> static int force_series;
> +static bool ec_raw_mode;
>
> 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;
> @@ -1393,6 +1411,87 @@ error_debugfs:
> return -ENOMEM;
> }
>
> +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 -EINVAL;
> + else if (obj->type != ACPI_TYPE_BUFFER) {
> + kfree(obj);
> + return -EINVAL;
> + }
> + if (obj->buffer.length != 4) {
> + printk(ACER_WARNING "Unknown buffer length %d\n",
> + obj->buffer.length);
> + kfree(obj);
> + return -EINVAL;
> + }
> +
> + *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 = 0x0041, /* WiFi on, 3G on, BT off */
> + .devices = 0xFFFF,
> + .lm_status = 0x41, /* 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);
> + else
> + printk(ACER_INFO "Enabled Launch Manager");
> +
> + return status;
> +}
> +
> static int __init acer_wmi_init(void)
> {
> int err;
> @@ -1454,6 +1553,20 @@ 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 (!wmi_has_guid(WMID_GUID3) && 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)
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