When getting and setting misc gaming settings, a special protocol
needs to be observed according to the ACPI AML code.
Add helper functions for this.
Signed-off-by: Armin Wolf <W_Armin@xxxxxx>
---
This patch is intended to be used by Hridesh to improve the platform
profile handling of the acer-wmi driver. Since he requested to work
on the final patch himself i decided to mark this patch as an RFC
since it is incomplete.
---
drivers/platform/x86/acer-wmi.c | 93 +++++++++++++++++++++++++++++++++
1 file changed, 93 insertions(+)
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index b3043d78a7b3..a71fab88e8c6 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -30,6 +30,7 @@
#include <linux/input/sparse-keymap.h>
#include <acpi/video.h>
#include <linux/hwmon.h>
+#include <linux/unaligned.h>
#include <linux/units.h>
#include <linux/bitfield.h>
@@ -68,6 +69,7 @@ MODULE_LICENSE("GPL");
#define ACER_WMID_GET_GAMING_SYS_INFO_METHODID 5
#define ACER_WMID_SET_GAMING_FAN_BEHAVIOR 14
#define ACER_WMID_SET_GAMING_MISC_SETTING_METHODID 22
+#define ACER_WMID_GET_GAMING_MISC_SETTING_METHODID 23
#define ACER_PREDATOR_V4_THERMAL_PROFILE_EC_OFFSET 0x54
@@ -76,6 +78,10 @@ MODULE_LICENSE("GPL");
#define ACER_PREDATOR_V4_SENSOR_READING_BIT_MASK GENMASK_ULL(23, 8)
#define ACER_PREDATOR_V4_SUPPORTED_SENSORS_BIT_MASK GENMASK_ULL(39, 24)
+#define ACER_GAMING_MISC_SETTING_STATUS_MASK GENMASK_ULL(7, 0)
+#define ACER_GAMING_MISC_SETTING_INDEX_MASK GENMASK_ULL(7, 0)
+#define ACER_GAMING_MISC_SETTING_VALUE_MASK GENMASK_ULL(15, 8)
+
/*
* Acer ACPI method GUIDs
*/
@@ -115,6 +121,12 @@ enum acer_wmi_predator_v4_sensor_id {
ACER_WMID_SENSOR_GPU_TEMPERATURE = 0x0A,
};
+enum acer_wmi_gaming_misc_setting {
+ ACER_WMID_MISC_SETTING_OC_1 = 0x0005,
+ ACER_WMID_MISC_SETTING_OC_2 = 0x0007,
+ ACER_WMID_MISC_SETTING_PLATFORM_PROFILE = 0x000B,
+};
+
static const struct key_entry acer_wmi_keymap[] __initconst = {
{KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
{KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
@@ -1477,6 +1489,45 @@ WMI_gaming_execute_u64(u32 method_id, u64 in, u64 *out)
return status;
}
+static int WMI_gaming_execute_u32_u64(u32 method_id, u32 in, u64 *out)
+{
+ struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_buffer input = {
+ .length = sizeof(in),
+ .pointer = &in,
+ };
+ union acpi_object *obj;
+ acpi_status status;
+ int ret = 0;
+
+ status = wmi_evaluate_method(WMID_GUID4, 0, method_id, &input, &result);
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ obj = result.pointer;
+ if (obj && out) {
+ switch (obj->type) {
+ case ACPI_TYPE_INTEGER:
+ *out = obj->integer.value;
+ break;
+ case ACPI_TYPE_BUFFER:
+ if (obj->buffer.length < sizeof(*out))
+ ret = -ENOMSG;
+ else
+ *out = get_unaligned_le64(obj->buffer.pointer);
+
+ break;
+ default:
+ ret = -ENOMSG;
+ break;
+ }
+ }
+
+ kfree(obj);
+
+ return ret;
+}
+
static acpi_status WMID_gaming_set_u64(u64 value, u32 cap)
{
u32 method_id = 0;
@@ -1544,6 +1595,48 @@ static int WMID_gaming_get_sys_info(u32 command, u64 *out)
return 0;
}
+static int WMID_gaming_set_misc_setting(enum acer_wmi_gaming_misc_setting setting, u8 value)
+{
+ acpi_status status;
+ u64 input = 0;
+ u64 result;
+
+ input |= FIELD_PREP(ACER_GAMING_MISC_SETTING_INDEX_MASK, setting);
+ input |= FIELD_PREP(ACER_GAMING_MISC_SETTING_VALUE_MASK, value);
+
+ status = WMI_gaming_execute_u64(ACER_WMID_SET_GAMING_MISC_SETTING_METHODID, input, &result);
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ /* The return status must be zero for the operation to have succeeded */
+ if (FIELD_GET(ACER_GAMING_MISC_SETTING_STATUS_MASK, result))
+ return -EIO;
+
+ return 0;
+}
+
+static int WMID_gaming_get_misc_setting(enum acer_wmi_gaming_misc_setting setting, u8 *value)
+{
+ u64 input = 0;
+ u64 result;
+ int ret;
+
+ input |= FIELD_PREP(ACER_GAMING_MISC_SETTING_INDEX_MASK, setting);
+
+ ret = WMI_gaming_execute_u32_u64(ACER_WMID_GET_GAMING_MISC_SETTING_METHODID, input,
+ &result);
+ if (ret < 0)
+ return ret;
+
+ /* The return status must be zero for the operation to have succeeded */
+ if (FIELD_GET(ACER_GAMING_MISC_SETTING_STATUS_MASK, result))
+ return -EIO;
+
+ *value = FIELD_GET(ACER_GAMING_MISC_SETTING_VALUE_MASK, result);
+
+ return 0;
+}
+
static void WMID_gaming_set_fan_mode(u8 fan_mode)
{
/* fan_mode = 1 is used for auto, fan_mode = 2 used for turbo*/
--
2.39.5
