Helper for finding the type based on name. Useful if the
type needs to be determined based on device property.
Signed-off-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
---
include/linux/rfkill.h | 15 +++++++++++++
net/rfkill/core.c | 57 +++++++++++++++++++++++++-------------------------
2 files changed, 44 insertions(+), 28 deletions(-)
diff --git a/include/linux/rfkill.h b/include/linux/rfkill.h
index d901078..02f563c 100644
--- a/include/linux/rfkill.h
+++ b/include/linux/rfkill.h
@@ -212,6 +212,15 @@ void rfkill_set_states(struct rfkill *rfkill, bool sw,
bool hw);
* @rfkill: rfkill struct to query
*/
bool rfkill_blocked(struct rfkill *rfkill);
+
+/**
+ * rfkill_find_type - Helpper for finding rfkill type by name
+ * @name: the name of the type
+ *
+ * Returns enum rfkill_type that conrresponds the name.
+ */
+enum rfkill_type rfkill_find_type(const char *name);
+
#else /* !RFKILL */
static inline struct rfkill * __must_check
rfkill_alloc(const char *name,
@@ -268,6 +277,12 @@ static inline bool rfkill_blocked(struct rfkill *rfkill)
{
return false;
}
+
+static inline enum rfkill_type rfkill_find_type(const char *name)
+{
+ return 0;
+}
+
#endif /* RFKILL || RFKILL_MODULE */
diff --git a/net/rfkill/core.c b/net/rfkill/core.c
index f12149a..53d7a97e 100644
--- a/net/rfkill/core.c
+++ b/net/rfkill/core.c
@@ -574,6 +574,33 @@ void rfkill_set_states(struct rfkill *rfkill, bool sw,
bool hw)
}
EXPORT_SYMBOL(rfkill_set_states);
+static const char *rfkill_types[NUM_RFKILL_TYPES] = {
+ [RFKILL_TYPE_WLAN] = "wlan",
+ [RFKILL_TYPE_BLUETOOTH] = "bluetooth",
+ [RFKILL_TYPE_UWB] = "ultrawideband",
+ [RFKILL_TYPE_WIMAX] = "wimax",
+ [RFKILL_TYPE_WWAN] = "wwan",
+ [RFKILL_TYPE_GPS] = "gps",
+ [RFKILL_TYPE_FM] = "fm",
+ [RFKILL_TYPE_NFC] = "nfc",
+};
+
+enum rfkill_type rfkill_find_type(const char *name)
+{
+ int i;
+
+ BUILD_BUG_ON(NUM_RFKILL_TYPES != RFKILL_TYPE_NFC + 1);
+
+ if (!name)
+ return RFKILL_TYPE_ALL;
+
+ for (i = 1; i < NUM_RFKILL_TYPES; i++)
+ if (!strcmp(name, rfkill_types[i]))
+ return i;
+ return RFKILL_TYPE_ALL;
+}
+EXPORT_SYMBOL(rfkill_find_type);
+
static ssize_t name_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
@@ -583,38 +610,12 @@ static ssize_t name_show(struct device *dev, struct
device_attribute *attr,
}
static DEVICE_ATTR_RO(name);
-static const char *rfkill_get_type_str(enum rfkill_type type)
-{
- BUILD_BUG_ON(NUM_RFKILL_TYPES != RFKILL_TYPE_NFC + 1);
-
- switch (type) {
- case RFKILL_TYPE_WLAN:
- return "wlan";
- case RFKILL_TYPE_BLUETOOTH:
- return "bluetooth";
- case RFKILL_TYPE_UWB:
- return "ultrawideband";
- case RFKILL_TYPE_WIMAX:
- return "wimax";
- case RFKILL_TYPE_WWAN:
- return "wwan";
- case RFKILL_TYPE_GPS:
- return "gps";
- case RFKILL_TYPE_FM:
- return "fm";
- case RFKILL_TYPE_NFC:
- return "nfc";
- default:
- BUG();
- }
-}
-
static ssize_t type_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct rfkill *rfkill = to_rfkill(dev);
- return sprintf(buf, "%s\n", rfkill_get_type_str(rfkill->type));
+ return sprintf(buf, "%s\n", rfkill_types[rfkill->type]);
}
static DEVICE_ATTR_RO(type);
@@ -760,7 +761,7 @@ static int rfkill_dev_uevent(struct device *dev, struct
kobj_uevent_env *env)
if (error)
return error;
error = add_uevent_var(env, "RFKILL_TYPE=%s",
- rfkill_get_type_str(rfkill->type));
+ rfkill_types[rfkill->type]);
if (error)
return error;
spin_lock_irqsave(&rfkill->lock, flags);
--
2.4.6
--
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