Add methods to driving the LEDs
This enables creating custom groups and participating LEDs so that
it can later be generated from MRW. For each of the group, a dbus object
is created which will announce LED actions. Corresponding groups are
asserted / de-asserted based on user input.
Change-Id: I7e64bea13767b8d083dd946f4cf3aeb37e62ff17
Signed-off-by: Vishwanatha Subbanna <vishwa@linux.vnet.ibm.com>
diff --git a/led-manager.hpp b/led-manager.hpp
index 1ff869b..32306bd 100644
--- a/led-manager.hpp
+++ b/led-manager.hpp
@@ -6,92 +6,112 @@
#include <sdbusplus/bus.hpp>
#include <sdbusplus/server/interface.hpp>
#include <sdbusplus/server/manager.hpp>
-
namespace phosphor
{
-
namespace led
{
-/** @class Manager
+/** @class Group
* @brief Manages group of LEDs and applies action on the elements of group
*/
-class Manager
+class Group
{
-private:
-
- /** @brief Define possible actions on a given LED.
- * For the BLINK operation, follow 50-50 duty cycle
- */
- enum Action
- {
- OFF,
- ON,
- BLINK,
- };
-
- /** @brief Dbus constructs used by LED manager */
- sdbusplus::bus::bus iv_bus;
-
-public:
- Manager() = delete;
- ~Manager() = default;
- Manager(const Manager&) = delete;
- Manager& operator=(const Manager&) = delete;
- Manager(Manager&&) = default;
- Manager& operator=(Manager&&) = default;
-
- /** @brief Constructs LED manager
- *
- * @param[in] busName - The Dbus name to own
- * @param[in] objPath - The Dbus path that hosts LED manager
- * @param[in] intfName - The Dbus interface
- */
- Manager(const char* busName, const char* objPath, const char* intfName);
-
- /** @brief Name of the LED and it's proposed action.
- * This structure is supplied as configuration at build time
- */
- struct LedAction
- {
- std::string name;
- Action action;
-
- // Needed for inserting elements into sets
- bool operator<(const LedAction& right) const
+ public:
+ /** @brief Define possible actions on a given LED.
+ * For the BLINK operation, follow 50-50 duty cycle
+ */
+ enum Action
{
- if (name == right.name)
+ OFF,
+ ON,
+ BLINK,
+ };
+
+ Group() = delete;
+ ~Group() = default;
+ Group(const Group&) = delete;
+ Group& operator=(const Group&) = delete;
+ Group(Group&&) = delete;
+ Group& operator=(Group&&) = delete;
+
+ /** @brief Constructs LED manager
+ *
+ * @param[in] busName - The Dbus name to own
+ * @param[in] objPath - The Dbus path that hosts LED manager
+ * @param[in] intfName - The Dbus interface
+ */
+ Group(const char* busName, const char* objPath, const char* intfName);
+
+ /** @brief Name of the LED and it's proposed action.
+ * This structure is supplied as configuration at build time
+ */
+ struct LedAction
+ {
+ std::string name;
+ Action action;
+
+ // Needed for inserting elements into sets
+ bool operator<(const LedAction& right) const
{
- return action < right.action;
+ if (name == right.name)
+ {
+ return action < right.action;
+ }
+ return name < right.name;
}
- return name < right.name;
+ };
+
+ /** @brief For finding intersection */
+ static bool ledComp(const LedAction& left, const LedAction& right)
+ {
+ return left.name < right.name;
}
- // Needed for set union / intersect
- bool operator==(const LedAction& right) const
- {
- // Only if name and action are same, consider equal
- if (name == right.name &&
- action == right.action)
- {
- return true;
- }
- return false;
- }
- };
+ using group = std::set<LedAction>;
- /** @brief static global map constructed at compile time */
- static const std::map<std::string,
- std::set<LedAction>> cv_LedMap;
+ /** @brief static global map constructed at compile time */
+ static const std::map<std::string, group> ledMap;
- /** @brief sd_bus object manager */
- sdbusplus::server::manager::manager objManager;
+ /** @brief Dbus constructs used by LED manager */
+ sdbusplus::bus::bus bus;
- /** @brief Individual objects */
- std::vector<sdbusplus::server::interface::interface> intfContainer;
+ /** @brief sd_bus object manager */
+ sdbusplus::server::manager::manager objManager;
- void run();
+ /** @brief Individual objects */
+ std::vector<sdbusplus::server::interface::interface> intfContainer;
+
+ /** @brief Pointers to groups that are in asserted state */
+ static std::set<const group*> assertedGroups;
+
+ /** @brief Contains the LEDs that are in asserted state */
+ static group currentState;
+
+ /** @brief Waits on the client request and processes them */
+ void run();
+
+ /** @brief Given a group name, tells if its in asserted state or not.
+ *
+ * @param[in] name - Group name
+ * @return - Whether in asserted state or not
+ */
+ bool getGroupState(const std::string& name);
+
+ /** @brief Given a group name, applies the action on the group
+ *
+ * @param[in] name - Group name
+ * @param[in] assert - Could be 0 or 1
+ * @return - Success or exception thrown
+ */
+ int setGroupState(const std::string& name, bool assert);
+
+ private:
+ /** @brief Finds the set of LEDs to operate on and executes action
+ *
+ * @return: Returns '0' for now.
+ */
+ int driveLEDs();
};
} // namespace led