diff options
Diffstat (limited to 'presence/gpio_presence.hpp')
| -rw-r--r-- | presence/gpio_presence.hpp | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/presence/gpio_presence.hpp b/presence/gpio_presence.hpp index 986dbe6..b5feddd 100644 --- a/presence/gpio_presence.hpp +++ b/presence/gpio_presence.hpp @@ -1,4 +1,5 @@ #pragma once +#include <experimental/filesystem> #include <string> #include <systemd/sd-event.h> #include "evdev.hpp" @@ -10,6 +11,12 @@ namespace gpio namespace presence { +static constexpr auto deviceField = 0; +static constexpr auto pathField = 1; +using Device = std::string; +using Path = std::experimental::filesystem::path; +using Driver = std::tuple<Device, Path>; + /** @class Presence * @brief Responsible for determining and monitoring presence, * by monitoring GPIO state changes, of inventory items and @@ -47,6 +54,7 @@ class Presence : public Evdev * @param[in] key - GPIO key to monitor * @param[in] name - Pretty name of the inventory item * @param[in] event - sd_event handler + * @param[in] drivers - list of device drivers to bind and unbind * @param[in] handler - IO callback handler. Defaults to one in this * class */ @@ -56,11 +64,13 @@ class Presence : public Evdev const unsigned int key, const std::string& name, EventPtr& event, + const std::vector<Driver>& drivers, sd_event_io_handler_t handler = Presence::processEvents) : Evdev(path, key, event, handler, true), bus(bus), inventory(inventory), - name(name) + name(name), + drivers(drivers) { determinePresence(); } @@ -101,7 +111,7 @@ class Presence : public Evdev /** * @brief Read the GPIO device to determine initial presence and set * present property at D-Bus path. - **/ + */ void determinePresence(); /** @brief Object path under inventory to display this inventory item */ @@ -112,6 +122,23 @@ class Presence : public Evdev /** @brief Analyzes the GPIO event and update present property*/ void analyzeEvent(); + + /** @brief Vector of path and device tuples to bind/unbind*/ + const std::vector<Driver> drivers; + + /** + * @brief Binds or unbinds drivers + * + * Called when a presence change is detected to either + * bind the drivers for the new card or unbind them for + * the just removed card. Operates on the drivers vector. + * + * Writes <device> to <path>/bind (or unbind) + * + * @param present - when true, will bind the drivers + * when false, will unbind them + */ + void bindOrUnbindDrivers(bool present); }; /** |
