ACPI: thinkpad-acpi: driver sysfs conversion
Add the sysfs attributes for the platform driver.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index e47eaf7..a31d00d 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -22,6 +22,7 @@
*/
#define IBM_VERSION "0.14"
+#define TPACPI_SYSFS_VERSION 0x000100
/*
* Changelog:
@@ -493,6 +494,87 @@
};
+/*************************************************************************
+ * thinkpad-acpi driver attributes
+ */
+
+/* interface_version --------------------------------------------------- */
+static ssize_t tpacpi_driver_interface_version_show(
+ struct device_driver *drv,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION);
+}
+
+static DRIVER_ATTR(interface_version, S_IRUGO,
+ tpacpi_driver_interface_version_show, NULL);
+
+/* debug_level --------------------------------------------------------- */
+static ssize_t tpacpi_driver_debug_show(struct device_driver *drv,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level);
+}
+
+static ssize_t tpacpi_driver_debug_store(struct device_driver *drv,
+ const char *buf, size_t count)
+{
+ unsigned long t;
+ char *endp;
+
+ t = simple_strtoul(buf, &endp, 0);
+ while (*endp && isspace(*endp))
+ endp++;
+ if (*endp)
+ return -EINVAL;
+
+ dbg_level = t;
+
+ return count;
+}
+
+static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO,
+ tpacpi_driver_debug_show, tpacpi_driver_debug_store);
+
+/* version ------------------------------------------------------------- */
+static ssize_t tpacpi_driver_version_show(struct device_driver *drv,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%s v%s\n", IBM_DESC, IBM_VERSION);
+}
+
+static DRIVER_ATTR(version, S_IRUGO,
+ tpacpi_driver_version_show, NULL);
+
+/* --------------------------------------------------------------------- */
+
+static struct driver_attribute* tpacpi_driver_attributes[] = {
+ &driver_attr_debug_level, &driver_attr_version,
+ &driver_attr_interface_version,
+};
+
+static int __init tpacpi_create_driver_attributes(struct device_driver *drv)
+{
+ int i, res;
+
+ i = 0;
+ res = 0;
+ while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) {
+ res = driver_create_file(drv, tpacpi_driver_attributes[i]);
+ i++;
+ }
+
+ return res;
+}
+
+static void tpacpi_remove_driver_attributes(struct device_driver *drv)
+{
+ int i;
+
+ for(i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++)
+ driver_remove_file(drv, tpacpi_driver_attributes[i]);
+}
+
/****************************************************************************
****************************************************************************
*
@@ -3268,6 +3350,13 @@
thinkpad_acpi_module_exit();
return ret;
}
+ ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver);
+ if (ret) {
+ printk(IBM_ERR "unable to create sysfs driver attributes\n");
+ thinkpad_acpi_module_exit();
+ return ret;
+ }
+
/* Device initialization */
tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1,
@@ -3318,6 +3407,7 @@
if (tpacpi_pdev)
platform_device_unregister(tpacpi_pdev);
+ tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver);
platform_driver_unregister(&tpacpi_pdriver);
if (proc_dir)