src/libs/Network/Drivers/LPC17XX_Ethernet.h

   1 #ifndef _LPC17XX_ETHERNET_H
   2 #define _LPC17XX_ETHERNET_H
   3
   4 #include "lpc17xx_emac.h"
   5
   6 #include "Module.h"
   7 #include "net_util.h"
   8
   9 #define EMAC_SMSC_8720A 0x0007C0F0
  10
  11 // SMSC 8720A special control/status register
  12 #define EMAC_PHY_REG_SCSR 0x1F
  13
  14 #define LPC17XX_MAX_PACKET 1536
  15 #define LPC17XX_TXBUFS     5
  16 #define LPC17XX_RXBUFS     5
  17
  18 typedef struct {
  19     void* packet;
  20     uint32_t control;
  21 } packet_desc;
  22
  23 typedef struct {
  24     uint8_t buf[LPC17XX_RXBUFS][LPC17XX_MAX_PACKET];
  25     RX_Stat rxstat[LPC17XX_RXBUFS];
  26     packet_desc rxdesc[LPC17XX_RXBUFS];
  27 } _rxbuf_t;
  28
  29 typedef struct {
  30     uint8_t buf[LPC17XX_TXBUFS][LPC17XX_MAX_PACKET];
  31     TX_Stat txstat[LPC17XX_TXBUFS];
  32     packet_desc txdesc[LPC17XX_TXBUFS];
  33 } _txbuf_t;
  34
  35 class LPC17XX_Ethernet;
  36
  37 class LPC17XX_Ethernet : public Module, public NetworkInterface
  38 {
  39 public:
  40     LPC17XX_Ethernet();
  41
  42     void on_module_loaded();
  43     void on_idle(void*);
  44     void on_second_tick(void*);
  45
  46     void emac_init(void) __attribute__ ((optimize("O0")));
  47
  48     void set_mac(uint8_t*);
  49
  50     void irq(void);
  51
  52     void _receive_frame(void);
  53
  54     // NetworkInterface methods
  55 //     void provide_net(netcore* n);
  56     bool can_read_packet(void);
  57     int read_packet(uint8_t**);
  58     void release_read_packet(uint8_t*);
  59     void periodical(int);
  60
  61     bool can_write_packet(void);
  62     int write_packet(uint8_t *, int);
  63
  64     void* request_packet_buffer(void);
  65
  66     // Encapsulator methods
  67     int receive(NetworkInterface* ni, NET_PACKET, int);
  68     int construct(NetworkInterface* ni, NET_PACKET, int);
  69     NET_PACKET  get_new_packet_buffer(NetworkInterface*);
  70     NET_PAYLOAD get_payload_buffer(NET_PACKET);
  71     void        set_payload_length(NET_PACKET, int);
  72
  73     static LPC17XX_Ethernet* instance;
  74
  75     static _rxbuf_t rxbuf;
  76     static _txbuf_t txbuf;
  77 };
  78
  79 #endif /* _LPC17XX_ETHERNET_H */