Viewing file:  hplance.h (1.42 KB) -rw-r--r--
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/* Random defines and structures for the HP Lance driver.
* Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
* Based on the Sun Lance driver and the NetBSD HP Lance driver
*/
/* Registers */
struct hplance_reg
{
u_char pad0;
volatile u_char id; /* DIO register: ID byte */
u_char pad1;
volatile u_char status; /* DIO register: interrupt enable */
};
/* Control and status bits for the hplance->status register */
#define LE_IE 0x80 /* interrupt enable */
#define LE_IR 0x40 /* interrupt requested */
#define LE_LOCK 0x08 /* lock status register */
#define LE_ACK 0x04 /* ack of lock */
#define LE_JAB 0x02 /* loss of tx clock (???) */
/* We can also extract the IPL from the status register with the standard
* DIO_IPL(hplance) macro, or using dio_scodetoipl()
*/
/* These are the offsets for the DIO regs (hplance_reg), lance_ioreg,
* memory and NVRAM:
*/
#define HPLANCE_IDOFF 0 /* board baseaddr, struct hplance_reg */
#define HPLANCE_REGOFF 0x4000 /* struct lance_regs */
#define HPLANCE_MEMOFF 0x8000 /* struct lance_init_block */
#define HPLANCE_NVRAMOFF 0xC008 /* etheraddress as one *nibble* per byte */
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