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/*************************************************************************
SMC91C9X ethernet controller implementation
by Aaron Giles
**************************************************************************/
#ifndef __SMC91C9X__
#define __SMC91C9X__
#define ETHER_BUFFER_SIZE (2048)
#define ETHER_RX_BUFFERS (4)
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
typedef void (*smc91c9x_irq_func)(device_t *device, int state);
struct smc91c9x_interface
{
smc91c9x_irq_func m_interrupt;
};
/* ----- device interface ----- */
class smc91c9x_device : public device_t,
public smc91c9x_interface
{
public:
smc91c9x_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source);
~smc91c9x_device() {}
DECLARE_READ16_MEMBER( read );
DECLARE_WRITE16_MEMBER( write );
protected:
// device-level overrides
virtual void device_config_complete();
virtual void device_start();
virtual void device_reset();
private:
// internal state
smc91c9x_irq_func m_irq_handler;
/* raw register data and masks */
UINT16 m_reg[64];
UINT16 m_regmask[64];
/* IRQ information */
UINT8 m_irq_state;
/* allocate information */
UINT8 m_alloc_count;
/* transmit/receive FIFOs */
UINT8 m_fifo_count;
UINT8 m_rx[ETHER_BUFFER_SIZE * ETHER_RX_BUFFERS];
UINT8 m_tx[ETHER_BUFFER_SIZE];
/* counters */
UINT32 m_sent;
UINT32 m_recd;
void update_ethernet_irq();
void update_stats();
void finish_enqueue(int param);
void process_command(UINT16 data);
};
class smc91c94_device : public smc91c9x_device
{
public:
smc91c94_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
};
extern const device_type SMC91C94;
class smc91c96_device : public smc91c9x_device
{
public:
smc91c96_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
};
extern const device_type SMC91C96;
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define MCFG_SMC91C94_ADD(_tag, _config) \
MCFG_DEVICE_ADD(_tag, SMC91C94, 0) \
MCFG_DEVICE_CONFIG(_config)
#define MCFG_SMC91C96_ADD(_tag, _config) \
MCFG_DEVICE_ADD(_tag, SMC91C96, 0) \
MCFG_DEVICE_CONFIG(_config)
#endif
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