Diff: enc28j60_emac.h

Revision:

0:b599e748252c

Child:

1:bce04bfc41fe

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/enc28j60_emac.h	Fri Mar 26 15:58:28 2021 +0000
@@ -0,0 +1,187 @@
+/*
+ * Copyright (c) 2019 Tobias Jaster
+ *
+ * Modified by Zoltan Hudak
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef ENC28J60_EMAC_H_
+#define ENC28J60_EMAC_H_
+
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include "mbed.h"
+#include "EMAC.h"
+#include "rtos.h"
+
+#include "enc28j60_reg.h"
+#include "enc28j60.h"
+#include "enc28j60_emac_config.h"
+
+class W5500_EMAC :
+    public EMAC
+{
+public:
+    W5500_EMAC();
+
+    /** Return the ENC28J60 EMAC
+     *
+     * Returns the default on-board EMAC - this will be target-specific, and
+     * may not be available on all targets.
+     */
+    static W5500_EMAC&   get_instance(void);
+
+    /**
+     * Return maximum transmission unit
+     *
+     * @return     MTU in bytes
+     */
+    virtual uint32_t        get_mtu_size(void) const;
+
+    /**
+     * Gets memory buffer alignment preference
+     *
+     * Gets preferred memory buffer alignment of the Emac device. IP stack may
+     * or may not align link out memory buffer chains using the alignment.
+     *
+     * @return         Memory alignment requirement in bytes
+     */
+    virtual uint32_t        get_align_preference(void) const;
+
+    /**
+     * Return interface name
+     *
+     * @param name Pointer to where the name should be written
+     * @param size Maximum number of character to copy
+     */
+    virtual void            get_ifname(char* name, uint8_t size) const;
+
+    /**
+     * Returns size of the underlying interface HW address size.
+     *
+     * @return     HW address size in bytes
+     */
+    virtual uint8_t         get_hwaddr_size(void) const;
+
+    /**
+     * Return interface-supplied HW address
+     *
+     * Copies HW address to provided memory, @param addr has to be of correct
+     * size see @a get_hwaddr_size
+     *
+     * HW address need not be provided if this interface does not have its own
+     * HW address configuration; stack will choose address from central system
+     * configuration if the function returns false and does not write to addr.
+     *
+     * @param addr HW address for underlying interface
+     * @return     true if HW address is available
+     */
+    virtual bool            get_hwaddr(uint8_t* addr) const;
+
+    /**
+     * Set HW address for interface
+     *
+     * Provided address has to be of correct size, see @a get_hwaddr_size
+     *
+     * Called to set the MAC address to actually use - if @a get_hwaddr is
+     * provided the stack would normally use that, but it could be overridden,
+     * eg for test purposes.
+     *
+     * @param addr Address to be set
+     */
+    virtual void            set_hwaddr(const uint8_t* addr);
+
+    /**
+     * Sends the packet over the link
+     *
+     * That can not be called from an interrupt context.
+     *
+     * @param buf  Packet to be send
+     * @return     True if the packet was send successfully, False otherwise
+     */
+    virtual bool            link_out(emac_mem_buf_t* buf);
+
+    /**
+     * Initializes the HW
+     *
+     * @return True on success, False in case of an error.
+     */
+    virtual bool            power_up(void);
+
+    /**
+     * Deinitializes the HW
+     *
+     */
+    virtual void            power_down(void);
+
+    /**
+     * Sets a callback that needs to be called for packets received for that
+     * interface
+     *
+     * @param input_cb Function to be register as a callback
+     */
+    virtual void            set_link_input_cb(emac_link_input_cb_t input_cb);
+
+    /**
+     * Sets a callback that needs to be called on link status changes for given
+     * interface
+     *
+     * @param state_cb Function to be register as a callback
+     */
+    virtual void            set_link_state_cb(emac_link_state_change_cb_t state_cb);
+
+    /** Add device to a multicast group
+     *
+     * @param address  A multicast group hardware address
+     */
+    virtual void            add_multicast_group(const uint8_t* address);
+
+    /** Remove device from a multicast group
+     *
+     * @param address  A multicast group hardware address
+     */
+    virtual void            remove_multicast_group(const uint8_t* address);
+
+    /** Request reception of all multicast packets
+     *
+     * @param all True to receive all multicasts
+     *            False to receive only multicasts addressed to specified groups
+     */
+    virtual void            set_all_multicast(bool all);
+
+    /** Sets memory manager that is used to handle memory buffers
+     *
+     * @param mem_mngr Pointer to memory manager
+     */
+    virtual void            set_memory_manager(EMACMemoryManager& mem_mngr);
+private:
+    void                        link_status_task();
+    void                        receive_task();
+    bool                        low_level_init_successful();
+    emac_mem_buf_t*             low_level_input();
+
+    ENC28J60*                   _enc28j60;
+    bool                        _prev_link_status_up;
+    int                         _link_status_task_handle;
+    int                         _receive_task_handle;
+    EMACMemoryManager*          _memory_manager;
+    Mutex                       _ethLockMutex;
+    uint8_t                     _hwaddr[ENC28J60_HWADDR_SIZE];
+
+    emac_link_input_cb_t        _emac_link_input_cb;
+    emac_link_state_change_cb_t _emac_link_state_cb;
+};
+#endif /* ENC28J60_EMAC_H_ */