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platform/x86: acer-wmi: Inform firmware that RF Button Driver is active

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The same method to activate LM(Launch Manager) can also be used to
activate the RF Button driver with different bit toggled in the same
lm_status. To express that many functions this byte field can achieve,
rename the lm_status to app_status. And also the app_mask is the bit
mask which specifically indicate which bits are going to be changed.

This solves a problem where the AR9565 wifi included in the
Acer Aspire ES1-421 is permanently hard blocked according to the rfkill
GPIO read by ath9k.

Signed-off-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Daniel Drake <drake@endlessm.com>
Reviewed-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Chris Chiu 2017-02-08 07:51:40 -06:00 committed by Darren Hart
parent 4ac20e62ef
commit 280642c3c8
1 changed files with 58 additions and 16 deletions
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74
drivers/platform/x86/acer-wmi.c
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@ -150,15 +150,30 @@ struct event_return_value {
#define ACER_WMID3_GDS_BLUETOOTH (1<<11) /* BT */
#define ACER_WMID3_GDS_TOUCHPAD (1<<1) /* Touchpad */
struct lm_input_params {
/* Hotkey Customized Setting and Acer Application Status.
* Set Device Default Value and Report Acer Application Status.
* When Acer Application starts, it will run this method to inform
* BIOS/EC that Acer Application is on.
* App Status
* Bit[0]: Launch Manager Status
* Bit[1]: ePM Status
* Bit[2]: Device Control Status
* Bit[3]: Acer Power Button Utility Status
* Bit[4]: RF Button Status
* Bit[5]: ODD PM Status
* Bit[6]: Device Default Value Control
* Bit[7]: Hall Sensor Application Status
*/
struct func_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;
u8 app_status; /* Acer Device Status. LM, ePM, RF Button... */
u8 app_mask; /* Bit mask to app_status */
u8 reserved;
} __attribute__((packed));
struct lm_return_value {
struct func_return_value {
u8 error_code; /* Error Code */
u8 ec_return_value; /* EC Return Value */
u16 reserved;
@ -1769,13 +1784,13 @@ static void acer_wmi_notify(u32 value, void *context)
}
static acpi_status __init
wmid3_set_lm_mode(struct lm_input_params *params,
struct lm_return_value *return_value)
wmid3_set_function_mode(struct func_input_params *params,
struct func_return_value *return_value)
{
acpi_status status;
union acpi_object *obj;
struct acpi_buffer input = { sizeof(struct lm_input_params), params };
struct acpi_buffer input = { sizeof(struct func_input_params), params };
struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
status = wmi_evaluate_method(WMID_GUID3, 0, 0x1, &input, &output);
@ -1796,7 +1811,7 @@ wmid3_set_lm_mode(struct lm_input_params *params,
return AE_ERROR;
}
*return_value = *((struct lm_return_value *)obj->buffer.pointer);
*return_value = *((struct func_return_value *)obj->buffer.pointer);
kfree(obj);
return status;
@ -1804,16 +1819,17 @@ wmid3_set_lm_mode(struct lm_input_params *params,
static int __init acer_wmi_enable_ec_raw(void)
{
struct lm_return_value return_value;
struct func_return_value return_value;
acpi_status status;
struct lm_input_params params = {
struct func_input_params params = {
.function_num = 0x1,
.commun_devices = 0xFFFF,
.devices = 0xFFFF,
.lm_status = 0x00, /* Launch Manager Deactive */
.app_status = 0x00, /* Launch Manager Deactive */
.app_mask = 0x01,
};
status = wmid3_set_lm_mode(&params, &return_value);
status = wmid3_set_function_mode(&params, &return_value);
if (return_value.error_code || return_value.ec_return_value)
pr_warn("Enabling EC raw mode failed: 0x%x - 0x%x\n",
@ -1827,16 +1843,17 @@ static int __init acer_wmi_enable_ec_raw(void)
static int __init acer_wmi_enable_lm(void)
{
struct lm_return_value return_value;
struct func_return_value return_value;
acpi_status status;
struct lm_input_params params = {
struct func_input_params params = {
.function_num = 0x1,
.commun_devices = 0xFFFF,
.devices = 0xFFFF,
.lm_status = 0x01, /* Launch Manager Active */
.app_status = 0x01, /* Launch Manager Active */
.app_mask = 0x01,
};
status = wmid3_set_lm_mode(&params, &return_value);
status = wmid3_set_function_mode(&params, &return_value);
if (return_value.error_code || return_value.ec_return_value)
pr_warn("Enabling Launch Manager failed: 0x%x - 0x%x\n",
@ -1846,6 +1863,28 @@ static int __init acer_wmi_enable_lm(void)
return status;
}
static int __init acer_wmi_enable_rf_button(void)
{
struct func_return_value return_value;
acpi_status status;
struct func_input_params params = {
.function_num = 0x1,
.commun_devices = 0xFFFF,
.devices = 0xFFFF,
.app_status = 0x10, /* RF Button Active */
.app_mask = 0x10,
};
status = wmid3_set_function_mode(&params, &return_value);
if (return_value.error_code || return_value.ec_return_value)
pr_warn("Enabling RF Button failed: 0x%x - 0x%x\n",
return_value.error_code,
return_value.ec_return_value);
return status;
}
#define ACER_WMID_ACCEL_HID "BST0001"
static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
@ -2229,6 +2268,9 @@ static int __init acer_wmi_init(void)
interface->capability &= ~ACER_CAP_BRIGHTNESS;
if (wmi_has_guid(WMID_GUID3)) {
if (ACPI_FAILURE(acer_wmi_enable_rf_button()))
pr_warn("Cannot enable RF Button Driver\n");
if (ec_raw_mode) {
if (ACPI_FAILURE(acer_wmi_enable_ec_raw())) {
pr_err("Cannot enable EC raw mode\n");