27 строки
1.3 KiB
C
27 строки
1.3 KiB
C
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/* Random defines and structures for the HP Lance driver.
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* Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
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* Based on the Sun Lance driver and the NetBSD HP Lance driver
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*/
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/* Registers */
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#define HPLANCE_ID 0x01 /* DIO register: ID byte */
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#define HPLANCE_STATUS 0x03 /* DIO register: interrupt enable/status */
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/* Control and status bits for the status register */
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#define LE_IE 0x80 /* interrupt enable */
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#define LE_IR 0x40 /* interrupt requested */
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#define LE_LOCK 0x08 /* lock status register */
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#define LE_ACK 0x04 /* ack of lock */
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#define LE_JAB 0x02 /* loss of tx clock (???) */
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/* We can also extract the IPL from the status register with the standard
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* DIO_IPL(hplance) macro, or using dio_scodetoipl()
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*/
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/* These are the offsets for the DIO regs (hplance_reg), lance_ioreg,
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* memory and NVRAM:
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*/
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#define HPLANCE_IDOFF 0 /* board baseaddr */
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#define HPLANCE_REGOFF 0x4000 /* lance registers */
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#define HPLANCE_MEMOFF 0x8000 /* struct lance_init_block */
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#define HPLANCE_NVRAMOFF 0xC008 /* etheraddress as one *nibble* per byte */
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