Am 10.12.24 um 03:06 schrieb Kurt Borja:
On Tue, Dec 10, 2024 at 01:16:55AM +0100, Armin Wolf wrote:If a call to ACER_WMID_GET_GAMING_SYS_INFO_METHODID fails, the lower 8 bits will be non-zero. Introduce a helper function to check this and use it when reading gaming system information. Tested-by: Rayan Margham <rayanmargham4@xxxxxxxxx> Signed-off-by: Armin Wolf <W_Armin@xxxxxx> --- drivers/platform/x86/acer-wmi.c | 55 +++++++++++++++++++++------------ 1 file changed, 36 insertions(+), 19 deletions(-) diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index dd57787466b9..ac4500f33b8c 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -70,6 +70,7 @@ MODULE_LICENSE("GPL"); #define ACER_PREDATOR_V4_THERMAL_PROFILE_EC_OFFSET 0x54 +#define ACER_PREDATOR_V4_RETURN_STATUS_BIT_MASK GENMASK_ULL(7, 0) #define ACER_PREDATOR_V4_FAN_SPEED_READ_BIT_MASK GENMASK(20, 8) /* @@ -1513,6 +1514,24 @@ static acpi_status WMID_gaming_get_u64(u64 *value, u32 cap) return status; } +static int WMID_gaming_get_sys_info(u32 command, u64 *out) +{ + acpi_status status; + u64 result; + + status = WMI_gaming_execute_u64(ACER_WMID_GET_GAMING_SYS_INFO_METHODID, command, &result); + if (ACPI_FAILURE(status)) + return -EIO; + + /* The return status must be zero for the operation to have succeeded */ + if (FIELD_GET(ACER_PREDATOR_V4_RETURN_STATUS_BIT_MASK, result)) + return -EIO; + + *out = 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*/ @@ -1762,22 +1781,23 @@ static int acer_gsensor_event(void) static int acer_get_fan_speed(int fan) { - if (quirks->predator_v4) { - acpi_status status; - u64 fanspeed; + u64 fanspeed; + u32 command; + int ret; - status = WMI_gaming_execute_u64( - ACER_WMID_GET_GAMING_SYS_INFO_METHODID, - fan == 0 ? ACER_WMID_CMD_GET_PREDATOR_V4_CPU_FAN_SPEED : - ACER_WMID_CMD_GET_PREDATOR_V4_GPU_FAN_SPEED, - &fanspeed); + if (!quirks->predator_v4) + return -EOPNOTSUPP; - if (ACPI_FAILURE(status)) - return -EIO; + if (fan == 0) + command = ACER_WMID_CMD_GET_PREDATOR_V4_CPU_FAN_SPEED; + else + command = ACER_WMID_CMD_GET_PREDATOR_V4_GPU_FAN_SPEED; - return FIELD_GET(ACER_PREDATOR_V4_FAN_SPEED_READ_BIT_MASK, fanspeed); - } - return -EOPNOTSUPP; + ret = WMID_gaming_get_sys_info(command, &fanspeed); + if (ret < 0) + return ret; + + return FIELD_GET(ACER_PREDATOR_V4_FAN_SPEED_READ_BIT_MASK, fanspeed); }I wonder if it's necessary to refactor this function if you are going to drop it on Patch 4.
I did it so each patch has a single well-defined scope. And refactoring this function was necessary for the patch being complete. Thanks, Armin Wolf
/* @@ -1942,12 +1962,9 @@ static int acer_thermal_profile_change(void) return err; /* Check power source */ - status = WMI_gaming_execute_u64( - ACER_WMID_GET_GAMING_SYS_INFO_METHODID, - ACER_WMID_CMD_GET_PREDATOR_V4_BAT_STATUS, &on_AC); - - if (ACPI_FAILURE(status)) - return -EIO; + err = WMID_gaming_get_sys_info(ACER_WMID_CMD_GET_PREDATOR_V4_BAT_STATUS, &on_AC); + if (err < 0) + return err; switch (current_tp) { case ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO: -- 2.39.5
