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authorStefan Weil <weil@mail.berlios.de>2010-03-02 22:37:42 +0100
committerMichael S. Tsirkin <mst@redhat.com>2010-03-03 13:33:48 +0200
commit0908bba1577d39bef09dd617b650d6dbd04ccf9e (patch)
treeee8d1ecc1626325a90078c85ae3acd5fa00c2661 /hw/eepro100.c
parentce0e58b3948ac75caca5bbb33b1ab52171fd95d7 (diff)
downloadfocaccia-qemu-0908bba1577d39bef09dd617b650d6dbd04ccf9e.tar.gz
focaccia-qemu-0908bba1577d39bef09dd617b650d6dbd04ccf9e.zip
eepro100: Add missing SCB register names
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>
Diffstat (limited to 'hw/eepro100.c')
-rw-r--r--hw/eepro100.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/hw/eepro100.c b/hw/eepro100.c
index 6580ca8bff..124bc49528 100644
--- a/hw/eepro100.c
+++ b/hw/eepro100.c
@@ -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: