linux-kernel - [PATCH v9 2/4] alienware-wmi: alienware_wmax

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Message-ID: <20241025151357.4071-2-kuurtb@gmail.com>
Date: Fri, 25 Oct 2024 12:13:47 -0300
From: Kurt Borja <kuurtb@...il.com>
To: kuurtb@...il.com
Cc: W_Armin@....de,
	hdegoede@...hat.com,
	ilpo.jarvinen@...ux.intel.com,
	linux-kernel@...r.kernel.org,
	platform-driver-x86@...r.kernel.org
Subject: [PATCH v9 2/4] alienware-wmi: alienware_wmax_command() is now input size agnostic

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@...il.com>
Reviewed-by: Armin Wolf <W_Armin@....de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
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