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eepro100: Support byte/word writes to pointer register

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pointer is a 32 bit register, but may be written using 8 or 16 bit writes.
Add support for byte/word writes.

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 2011-04-30 22:40:10 +02:00 committed by Michael S. Tsirkin
parent 3fd3d0b463
commit 27a05006e0
1 changed files with 16 additions and 17 deletions
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33
hw/eepro100.c
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@ -240,7 +240,6 @@ typedef struct {
uint16_t mdimem[32];
eeprom_t *eeprom;
uint32_t device; /* device variant */
uint32_t pointer;
/* (cu_base + cu_offset) address the next command block in the command block list. */
uint32_t cu_base; /* CU base address */
uint32_t cu_offset; /* CU address offset */
@ -991,7 +990,7 @@ static void eepro100_cu_command(EEPRO100State * s, uint8_t val)
logout("unexpected CU state is %u\n", cu_state);
}
set_cu_state(s, cu_active);
s->cu_offset = s->pointer;
s->cu_offset = e100_read_reg4(s, SCBPointer);
action_command(s);
break;
case CU_RESUME:
@ -1012,7 +1011,7 @@ static void eepro100_cu_command(EEPRO100State * s, uint8_t val)
break;
case CU_STATSADDR:
/* Load dump counters address. */
s->statsaddr = s->pointer;
s->statsaddr = e100_read_reg4(s, SCBPointer);
TRACE(OTHER, logout("val=0x%02x (status address)\n", val));
break;
case CU_SHOWSTATS:
@ -1024,7 +1023,7 @@ static void eepro100_cu_command(EEPRO100State * s, uint8_t val)
case CU_CMD_BASE:
/* Load CU base. */
TRACE(OTHER, logout("val=0x%02x (CU base address)\n", val));
s->cu_base = s->pointer;
s->cu_base = e100_read_reg4(s, SCBPointer);
break;
case CU_DUMPSTATS:
/* Dump and reset statistical counters. */
@ -1057,7 +1056,7 @@ static void eepro100_ru_command(EEPRO100State * s, uint8_t val)
#endif
}
set_ru_state(s, ru_ready);
s->ru_offset = s->pointer;
s->ru_offset = e100_read_reg4(s, SCBPointer);
TRACE(OTHER, logout("val=0x%02x (rx start)\n", val));
break;
case RX_RESUME:
@ -1081,7 +1080,7 @@ static void eepro100_ru_command(EEPRO100State * s, uint8_t val)
case RX_ADDR_LOAD:
/* Load RU base. */
TRACE(OTHER, logout("val=0x%02x (RU base address)\n", val));
s->ru_base = s->pointer;
s->ru_base = e100_read_reg4(s, SCBPointer);
break;
default:
logout("val=0x%02x (undefined RU command)\n", val);
@ -1138,12 +1137,6 @@ static void eepro100_write_eeprom(eeprom_t * eeprom, uint8_t val)
eeprom93xx_write(eeprom, eecs, eesk, eedi);
}
static void eepro100_write_pointer(EEPRO100State * s, uint32_t val)
{
s->pointer = le32_to_cpu(val);
TRACE(OTHER, logout("val=0x%08x\n", val));
}
/*****************************************************************************
*
* MDI emulation.
@ -1428,9 +1421,6 @@ static uint32_t eepro100_read4(EEPRO100State * s, uint32_t addr)
TRACE(OTHER, logout("addr=%s val=0x%08x\n", regname(addr), val));
break;
case SCBPointer:
#if 0
val = eepro100_read_pointer(s);
#endif
TRACE(OTHER, logout("addr=%s val=0x%08x\n", regname(addr), val));
break;
case SCBPort:
@ -1473,6 +1463,12 @@ static void eepro100_write1(EEPRO100State * s, uint32_t addr, uint8_t val)
}
eepro100_interrupt(s, 0);
break;
case SCBPointer:
case SCBPointer + 1:
case SCBPointer + 2:
case SCBPointer + 3:
TRACE(OTHER, logout("addr=%s val=0x%02x\n", regname(addr), val));
break;
case SCBPort:
case SCBPort + 1:
case SCBPort + 2:
@ -1516,6 +1512,10 @@ static void eepro100_write2(EEPRO100State * s, uint32_t addr, uint16_t val)
eepro100_write_command(s, val);
eepro100_write1(s, SCBIntmask, val >> 8);
break;
case SCBPointer:
case SCBPointer + 2:
TRACE(OTHER, logout("addr=%s val=0x%04x\n", regname(addr), val));
break;
case SCBPort:
TRACE(OTHER, logout("addr=%s val=0x%04x\n", regname(addr), val));
break;
@ -1541,7 +1541,7 @@ static void eepro100_write4(EEPRO100State * s, uint32_t addr, uint32_t val)
switch (addr) {
case SCBPointer:
eepro100_write_pointer(s, val);
TRACE(OTHER, logout("addr=%s val=0x%08x\n", regname(addr), val));
break;
case SCBPort:
TRACE(OTHER, logout("addr=%s val=0x%08x\n", regname(addr), val));
@ -1881,7 +1881,6 @@ static const VMStateDescription vmstate_eepro100 = {
/* The eeprom should be saved and restored by its own routines. */
VMSTATE_UINT32(device, EEPRO100State),
/* TODO check device. */
VMSTATE_UINT32(pointer, EEPRO100State),
VMSTATE_UINT32(cu_base, EEPRO100State),
VMSTATE_UINT32(cu_offset, EEPRO100State),
VMSTATE_UINT32(ru_base, EEPRO100State),