X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=low-can-binding%2Fbinding%2Flow-can-subscription.hpp;h=5ea1cf172c304ecd9ce44ce969d455ce45087622;hb=88077fb4b383cf7f35093b6cc0d2d9d86c6f1bf3;hp=0807feefbc1bf2562fe387d24fae01e4d5ad0fd8;hpb=1b3655d85cfb9cc143c9e7f0d3506e6b004f835e;p=apps%2Fagl-service-can-low-level.git

diff --git a/low-can-binding/binding/low-can-subscription.hpp b/low-can-binding/binding/low-can-subscription.hpp
index 0807feef..5ea1cf17 100644
--- a/low-can-binding/binding/low-can-subscription.hpp
+++ b/low-can-binding/binding/low-can-subscription.hpp
@@ -15,29 +15,91 @@
  * limitations under the License.
  */
 
-  #pragma once
+#pragma once
 
 #include <string>
 #include <cmath>
 #include <utility>
 
-#include "low-can-socket.hpp"
-#include "../can/can-signals.hpp"
+#include "../can/signals.hpp"
 #include "../diagnostic/diagnostic-message.hpp"
-#include "../utils/socketcan-bcm.hpp"
+#include "../utils/socketcan.hpp"
 
-/// @brief The subscription class has a context that can handle all needed values to describe a subscription
-/// to the low-can binding. It can hold a CAN signal or a diagnostic message. A diagnostic message for OBD2 is
-/// special because there is only 1 listener to retrieve OBD2 requests. It is required that all diagnostic message
-/// subscriptions are in 1 object.
-class low_can_subscription_t : public low_can_socket_t
+
+#define OBDII_MAX_SIMULTANEOUS_RESPONSES 8
+
+/// @brief Filtering values. Theses values have to be tested in
+/// can_bus_t::apply_filter method.
+struct event_filter_t
+{
+	float frequency; ///< frequency - Maximum frequency which will be received and pushed to a subscribed event.
+	float min; ///< min - Minimum value that the signal doesn't have to go below to be pushed.
+	float max; ///< max - Maximum value that the signal doesn't have to go above to be pushed.
+
+	event_filter_t() : frequency{0}, min{-__FLT_MAX__}, max{__FLT_MAX__} {};
+	bool operator==(const event_filter_t& ext) const {
+		return frequency == ext.frequency && min == ext.min && max == ext.max;
+	}
+};
+
+/// @brief The object stores socket to CAN to be used to write on it.
+/// This is a simple access to a CAN bus device without any subscriptions attached
+class low_can_subscription_t
 {
 private:
+	int index_; ///< index_ - index number is the socket (int) casted
+	struct event_filter_t event_filter_;
 	afb_event_t event_; ///< event_ - application framework event used to push on client
 
+	/// Signal part
+	std::shared_ptr<signal_t> signal_; ///< signal_ - the CAN signal subscribed
+	std::vector<std::shared_ptr<diagnostic_message_t> > diagnostic_message_; ///< diagnostic_message_ - diagnostic messages meant to receive OBD2
+										 /// responses. Normal diagnostic request and response are not tested for now.
+	std::shared_ptr<utils::socketcan_t> socket_; ///< socket_ - socket_ that receives CAN messages.
+
+	int set_event();
+
 public:
-	using low_can_socket_t::low_can_socket_t;
+	low_can_subscription_t();
+	low_can_subscription_t(struct event_filter_t event_filter);
+	low_can_subscription_t(const low_can_subscription_t& s) = delete;
+	low_can_subscription_t(low_can_subscription_t&& s);
+	~low_can_subscription_t();
+
+	low_can_subscription_t& operator=(const low_can_subscription_t& s);
+	explicit operator bool() const;
 
 	afb_event_t get_event();
-	void set_event(afb_event_t event);
+	int subscribe(afb_req_t request);
+	int unsubscribe(afb_req_t request);
+
+	int get_index() const;
+	const std::shared_ptr<signal_t> get_signal() const;
+	bool is_signal_subscription_corresponding(const std::shared_ptr<signal_t>, const struct event_filter_t& event_filter) const;
+	const std::shared_ptr<diagnostic_message_t> get_diagnostic_message(uint32_t pid) const;
+	const std::vector<std::shared_ptr<diagnostic_message_t> > get_diagnostic_message() const;
+	const std::shared_ptr<diagnostic_message_t> get_diagnostic_message(const std::string& name) const;
+	const std::string get_name() const;
+	const std::string get_name(uint32_t pid) const;
+	float get_frequency() const;
+	float get_min() const;
+	float get_max() const;
+	std::shared_ptr<utils::socketcan_t> get_socket();
+
+	void set_frequency(float freq);
+	void set_min(float min);
+	void set_max(float max);
+
+	static struct bcm_msg make_bcm_head(uint32_t opcode, uint32_t can_id = 0, uint32_t flags = 0, const struct timeval& timeout = {0,0}, const struct timeval& frequency_thinning = {0,0});
+	static void add_one_bcm_frame(struct canfd_frame& cfd, struct bcm_msg& bcm_msg);
+
+	static int open_socket(low_can_subscription_t &subscription, const std::string& bus_name = "");
+
+	int create_rx_filter(std::shared_ptr<signal_t> sig);
+	int create_rx_filter(std::shared_ptr<diagnostic_message_t> sig);
+	static int create_rx_filter_can(low_can_subscription_t &subscription, std::shared_ptr<signal_t> sig);
+	static int create_rx_filter_j1939(low_can_subscription_t &subscription, std::shared_ptr<signal_t> sig);
+	static int create_rx_filter_bcm(low_can_subscription_t &subscription, bcm_msg& bcm_msg);
+
+	static int tx_send(low_can_subscription_t &subscription, message_t *message, const std::string& bus_name);
 };