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eepro100: Add missing SCB register names

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Some system control block registers were addressed
using their offset value. Use symbolic names now
and clean the documentation.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Stefan Weil 2010-03-02 22:37:42 +01:00 committed by Michael S. Tsirkin
parent ce0e58b394
commit 0908bba157
1 changed files with 10 additions and 6 deletions
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16
hw/eepro100.c
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@ -125,16 +125,20 @@
/* Offsets to the various registers.
All accesses need not be longword aligned. */
enum speedo_offsets {
SCBStatus = 0,
SCBStatus = 0, /* Status Word. */
SCBAck = 1,
SCBCmd = 2, /* Rx/Command Unit command and status. */
SCBIntmask = 3,
SCBPointer = 4, /* General purpose pointer. */
SCBPort = 8, /* Misc. commands and operands. */
SCBflash = 12, SCBeeprom = 14, /* EEPROM and flash memory control. */
SCBflash = 12, /* Flash memory control. */
SCBeeprom = 14, /* EEPROM control. */
SCBCtrlMDI = 16, /* MDI interface control. */
SCBEarlyRx = 20, /* Early receive byte count. */
SCBFlow = 24,
SCBFlow = 24, /* Flow Control. */
SCBpmdr = 27, /* Power Management Driver. */
SCBgctrl = 28, /* General Control. */
SCBgstat = 29, /* General Status. */
};
/* A speedo3 transmit buffer descriptor with two buffers... */
@ -1333,11 +1337,11 @@ static uint8_t eepro100_read1(EEPRO100State * s, uint32_t addr)
case SCBeeprom:
val = eepro100_read_eeprom(s);
break;
case 0x1b: /* PMDR (power management driver register) */
case SCBpmdr: /* Power Management Driver Register */
val = 0;
TRACE(OTHER, logout("addr=%s val=0x%02x\n", regname(addr), val));
break;
case 0x1d: /* general status register */
case SCBgstat: /* General Status Register */
/* 100 Mbps full duplex, valid link */
val = 0x07;
TRACE(OTHER, logout("addr=General Status val=%02x\n", val));
@ -1431,7 +1435,7 @@ static void eepro100_write1(EEPRO100State * s, uint32_t addr, uint8_t val)
case SCBFlow: /* does not exist on 82557 */
case SCBFlow + 1:
case SCBFlow + 2:
case SCBFlow + 3:
case SCBpmdr: /* does not exist on 82557 */
TRACE(OTHER, logout("addr=%s val=0x%02x\n", regname(addr), val));
break;
case SCBeeprom: