Add a debugfs interface which exposes thermal private data.
Reviewed-by: Armin Wolf <W_Armin@xxxxxx>
Signed-off-by: Kurt Borja <kuurtb@xxxxxxxxx>
---
drivers/platform/x86/dell/alienware-wmi-wmax.c | 90 ++++++++++++++++++++++++++
1 file changed, 90 insertions(+)
diff --git a/drivers/platform/x86/dell/alienware-wmi-wmax.c b/drivers/platform/x86/dell/alienware-wmi-wmax.c
index 68ff520f016d2d567cddcefe41f01bf284b4d979..46d11b200820cdbaa841fc97e33b339fca42104e 100644
--- a/drivers/platform/x86/dell/alienware-wmi-wmax.c
+++ b/drivers/platform/x86/dell/alienware-wmi-wmax.c
@@ -11,6 +11,7 @@
#include <linux/bitfield.h>
#include <linux/bitmap.h>
#include <linux/bits.h>
+#include <linux/debugfs.h>
#include <linux/dmi.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
@@ -19,6 +20,7 @@
#include <linux/moduleparam.h>
#include <linux/platform_profile.h>
#include <linux/pm.h>
+#include <linux/seq_file.h>
#include <linux/units.h>
#include <linux/wmi.h>
#include "alienware-wmi.h"
@@ -1252,6 +1254,92 @@ static int awcc_platform_profile_init(struct wmi_device *wdev)
return PTR_ERR_OR_ZERO(priv->ppdev);
}
+/*
+ * DebugFS
+ */
+static int awcc_debugfs_system_description_read(struct seq_file *seq, void *data)
+{
+ struct device *dev = seq->private;
+ struct awcc_priv *priv = dev_get_drvdata(dev);
+
+ seq_printf(seq, "0x%08x\n", priv->system_description);
+
+ return 0;
+}
+
+static int awcc_debugfs_hwmon_data_read(struct seq_file *seq, void *data)
+{
+ struct device *dev = seq->private;
+ struct awcc_priv *priv = dev_get_drvdata(dev);
+ const struct awcc_fan_data *fan;
+ unsigned int bit;
+
+ seq_printf(seq, "Number of fans: %u\n", priv->fan_count);
+ seq_printf(seq, "Number of temperature sensors: %u\n\n", priv->temp_count);
+
+ for (u32 i = 0; i < priv->fan_count; i++) {
+ fan = priv->fan_data[i];
+
+ seq_printf(seq, "Fan %u:\n", i);
+ seq_printf(seq, " ID: 0x%02x\n", fan->id);
+ seq_printf(seq, " Related temperature sensors bitmap: %lu\n",
+ fan->auto_channels_temp);
+ }
+
+ seq_puts(seq, "\nTemperature sensor IDs:\n");
+ for_each_set_bit(bit, priv->temp_sensors, AWCC_ID_BITMAP_SIZE)
+ seq_printf(seq, " 0x%02x\n", bit);
+
+ return 0;
+}
+
+static int awcc_debugfs_pprof_data_read(struct seq_file *seq, void *data)
+{
+ struct device *dev = seq->private;
+ struct awcc_priv *priv = dev_get_drvdata(dev);
+
+ seq_printf(seq, "Number of thermal profiles: %u\n\n", priv->profile_count);
+
+ for (u32 i = 0; i < PLATFORM_PROFILE_LAST; i++) {
+ if (!priv->supported_profiles[i])
+ continue;
+
+ seq_printf(seq, "Platform profile %u:\n", i);
+ seq_printf(seq, " ID: 0x%02x\n", priv->supported_profiles[i]);
+ }
+
+ return 0;
+}
+
+static void awcc_debugfs_remove(void *data)
+{
+ struct dentry *root = data;
+
+ debugfs_remove(root);
+}
+
+static void awcc_debugfs_init(struct wmi_device *wdev)
+{
+ struct dentry *root;
+ char name[64];
+
+ scnprintf(name, ARRAY_SIZE(name), "%s-%s", "alienware-wmi", dev_name(&wdev->dev));
+ root = debugfs_create_dir(name, NULL);
+
+ debugfs_create_devm_seqfile(&wdev->dev, "system_description", root,
+ awcc_debugfs_system_description_read);
+
+ if (awcc->hwmon)
+ debugfs_create_devm_seqfile(&wdev->dev, "hwmon_data", root,
+ awcc_debugfs_hwmon_data_read);
+
+ if (awcc->pprof)
+ debugfs_create_devm_seqfile(&wdev->dev, "pprof_data", root,
+ awcc_debugfs_pprof_data_read);
+
+ devm_add_action_or_reset(&wdev->dev, awcc_debugfs_remove, root);
+}
+
static int alienware_awcc_setup(struct wmi_device *wdev)
{
struct awcc_priv *priv;
@@ -1290,6 +1378,8 @@ static int alienware_awcc_setup(struct wmi_device *wdev)
return ret;
}
+ awcc_debugfs_init(wdev);
+
return 0;
}
--
2.48.1
