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eepro100: Support byte/word writes to port address

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port 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 22:40:09 +02:00 committed by Michael S. Tsirkin
parent e5e23ab83b
commit 3fd3d0b463
1 changed files with 18 additions and 2 deletions
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20
hw/eepro100.c
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@ -1317,8 +1317,9 @@ static uint32_t eepro100_read_port(EEPRO100State * s)
return 0;
}
static void eepro100_write_port(EEPRO100State * s, uint32_t val)
static void eepro100_write_port(EEPRO100State *s)
{
uint32_t val = e100_read_reg4(s, SCBPort);
uint32_t address = (val & ~PORT_SELECTION_MASK);
uint8_t selection = (val & PORT_SELECTION_MASK);
switch (selection) {
@ -1472,7 +1473,15 @@ static void eepro100_write1(EEPRO100State * s, uint32_t addr, uint8_t val)
}
eepro100_interrupt(s, 0);
break;
case SCBPort:
case SCBPort + 1:
case SCBPort + 2:
TRACE(OTHER, logout("addr=%s val=0x%02x\n", regname(addr), val));
break;
case SCBPort + 3:
TRACE(OTHER, logout("addr=%s val=0x%02x\n", regname(addr), val));
eepro100_write_port(s);
break;
case SCBFlow: /* does not exist on 82557 */
case SCBFlow + 1:
case SCBFlow + 2:
@ -1507,6 +1516,13 @@ 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 SCBPort:
TRACE(OTHER, logout("addr=%s val=0x%04x\n", regname(addr), val));
break;
case SCBPort + 2:
TRACE(OTHER, logout("addr=%s val=0x%04x\n", regname(addr), val));
eepro100_write_port(s);
break;
case SCBeeprom:
TRACE(OTHER, logout("addr=%s val=0x%04x\n", regname(addr), val));
eepro100_write_eeprom(s->eeprom, val);
@ -1529,7 +1545,7 @@ static void eepro100_write4(EEPRO100State * s, uint32_t addr, uint32_t val)
break;
case SCBPort:
TRACE(OTHER, logout("addr=%s val=0x%08x\n", regname(addr), val));
eepro100_write_port(s, val);
eepro100_write_port(s);
break;
case SCBCtrlMDI:
eepro100_write_mdi(s, val);