[PATCH v11 2/5] alienware-wmi: alienware_wmax_command() is now input size agnostic

Kurt Borja
2024-10-30T00:11:10Z

alienware_wmax_command() now takes void * and size_t instead of struct
wmax_basic_args to extend support to new WMAX methods. Also int *out_data
was changed to u32 *out_data, because new interface specifies u32 as output
parameter and all previous callers would pass u32 * regardless.

Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
v11:
- Unchanged
v10:
- Unchanged
v9:
- Unchanged
v8:
- Unchanged
v7:
- Unchanged
v6:
- Unchanged
---
drivers/platform/x86/dell/alienware-wmi.c | 29 ++++++++++++-----------
1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c
index 16a3fe9ac..b27f3b64c 100644
--- a/drivers/platform/x86/dell/alienware-wmi.c
+++ b/drivers/platform/x86/dell/alienware-wmi.c
@@ -500,15 +500,15 @@ static void alienware_zone_exit(struct platform_device *dev)
kfree(zone_attrs);
}

-static acpi_status alienware_wmax_command(struct wmax_basic_args *in_args,
- u32 command, int *out_data)
+static acpi_status alienware_wmax_command(void *in_args, size_t in_size,
+ u32 command, u32 *out_data)
{
acpi_status status;
union acpi_object *obj;
struct acpi_buffer input;
struct acpi_buffer output;

- input.length = sizeof(*in_args);
+ input.length = in_size;
input.pointer = in_args;
if (out_data) {
output.length = ACPI_ALLOCATE_BUFFER;
@@ -541,8 +541,8 @@ static ssize_t show_hdmi_cable(struct device *dev,
.arg = 0,
};
status =
- alienware_wmax_command(&in_args, WMAX_METHOD_HDMI_CABLE,
- &out_data);
+ alienware_wmax_command(&in_args, sizeof(in_args),
+ WMAX_METHOD_HDMI_CABLE, &out_data);
if (ACPI_SUCCESS(status)) {
if (out_data == 0)
return sysfs_emit(buf, "[unconnected] connected unknown\n");
@@ -562,8 +562,8 @@ static ssize_t show_hdmi_source(struct device *dev,
.arg = 0,
};
status =
- alienware_wmax_command(&in_args, WMAX_METHOD_HDMI_STATUS,
- &out_data);
+ alienware_wmax_command(&in_args, sizeof(in_args),
+ WMAX_METHOD_HDMI_STATUS, &out_data);

if (ACPI_SUCCESS(status)) {
if (out_data == 1)
@@ -589,7 +589,8 @@ static ssize_t toggle_hdmi_source(struct device *dev,
args.arg = 3;
pr_debug("alienware-wmi: setting hdmi to %d : %s", args.arg, buf);

- status = alienware_wmax_command(&args, WMAX_METHOD_HDMI_SOURCE, NULL);
+ status = alienware_wmax_command(&args, sizeof(args),
+ WMAX_METHOD_HDMI_SOURCE, NULL);

if (ACPI_FAILURE(status))
pr_err("alienware-wmi: HDMI toggle failed: results: %u\n",
@@ -642,8 +643,8 @@ static ssize_t show_amplifier_status(struct device *dev,
.arg = 0,
};
status =
- alienware_wmax_command(&in_args, WMAX_METHOD_AMPLIFIER_CABLE,
- &out_data);
+ alienware_wmax_command(&in_args, sizeof(in_args),
+ WMAX_METHOD_AMPLIFIER_CABLE, &out_data);
if (ACPI_SUCCESS(status)) {
if (out_data == 0)
return sysfs_emit(buf, "[unconnected] connected unknown\n");
@@ -694,8 +695,8 @@ static ssize_t show_deepsleep_status(struct device *dev,
struct wmax_basic_args in_args = {
.arg = 0,
};
- status = alienware_wmax_command(&in_args, WMAX_METHOD_DEEP_SLEEP_STATUS,
- &out_data);
+ status = alienware_wmax_command(&in_args, sizeof(in_args),
+ WMAX_METHOD_DEEP_SLEEP_STATUS, &out_data);
if (ACPI_SUCCESS(status)) {
if (out_data == 0)
return sysfs_emit(buf, "[disabled] s5 s5_s4\n");
@@ -723,8 +724,8 @@ static ssize_t toggle_deepsleep(struct device *dev,
args.arg = 2;
pr_debug("alienware-wmi: setting deep sleep to %d : %s", args.arg, buf);

- status = alienware_wmax_command(&args, WMAX_METHOD_DEEP_SLEEP_CONTROL,
- NULL);
+ status = alienware_wmax_command(&args, sizeof(args),
+ WMAX_METHOD_DEEP_SLEEP_CONTROL, NULL);

if (ACPI_FAILURE(status))
pr_err("alienware-wmi: deep sleep control failed: results: %u\n",
--
2.47.0