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eepro100: New function for reading command block

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Move code which reads the command block to the
new function read_cb. The patch also fixes some
endianess issues related to the command block
and moves declarations of local variables to
the beginning of the block.

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 22:37:57 +01:00 committed by Michael S. Tsirkin
parent ec1d02d8de
commit 3d0f4b9bb5
1 changed files with 28 additions and 14 deletions
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42
hw/eepro100.c
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@ -798,6 +798,16 @@ static void dump_statistics(EEPRO100State * s)
//~ missing("CU dump statistical counters"); //~ missing("CU dump statistical counters");
} }
static void read_cb(EEPRO100State *s)
{
cpu_physical_memory_read(s->cb_address, (uint8_t *) &s->tx, sizeof(s->tx));
s->tx.status = le16_to_cpu(s->tx.status);
s->tx.command = le16_to_cpu(s->tx.command);
s->tx.link = le32_to_cpu(s->tx.link);
s->tx.tbd_array_addr = le32_to_cpu(s->tx.tbd_array_addr);
s->tx.tcb_bytes = le16_to_cpu(s->tx.tcb_bytes);
}
static void tx_command(EEPRO100State *s) static void tx_command(EEPRO100State *s)
{ {
uint32_t tbd_array = le32_to_cpu(s->tx.tbd_array_addr); uint32_t tbd_array = le32_to_cpu(s->tx.tbd_array_addr);
@ -901,21 +911,25 @@ static void set_multicast_list(EEPRO100State *s)
static void action_command(EEPRO100State *s) static void action_command(EEPRO100State *s)
{ {
for (;;) { for (;;) {
s->cb_address = s->cu_base + s->cu_offset; bool bit_el;
cpu_physical_memory_read(s->cb_address, (uint8_t *)&s->tx, sizeof(s->tx)); bool bit_s;
uint16_t command = le16_to_cpu(s->tx.command); bool bit_i;
s->tx.status = le16_to_cpu(s->tx.status); bool bit_nc;
logout("val=(cu start), status=0x%04x, command=0x%04x, link=0x%08x\n",
s->tx.status, command, s->tx.link);
bool bit_el = ((command & COMMAND_EL) != 0);
bool bit_s = ((command & COMMAND_S) != 0);
bool bit_i = ((command & COMMAND_I) != 0);
bool bit_nc = ((command & COMMAND_NC) != 0);
bool success = true; bool success = true;
//~ bool bit_sf = ((command & COMMAND_SF) != 0); s->cb_address = s->cu_base + s->cu_offset;
uint16_t cmd = command & COMMAND_CMD; read_cb(s);
s->cu_offset = le32_to_cpu(s->tx.link); bit_el = ((s->tx.command & COMMAND_EL) != 0);
switch (cmd) { bit_s = ((s->tx.command & COMMAND_S) != 0);
bit_i = ((s->tx.command & COMMAND_I) != 0);
bit_nc = ((s->tx.command & COMMAND_NC) != 0);
#if 0
bool bit_sf = ((s->tx.command & COMMAND_SF) != 0);
#endif
s->cu_offset = s->tx.link;
TRACE(OTHER,
logout("val=(cu start), status=0x%04x, command=0x%04x, link=0x%08x\n",
s->tx.status, s->tx.command, s->tx.link));
switch (s->tx.command & COMMAND_CMD) {
case CmdNOp: case CmdNOp:
/* Do nothing. */ /* Do nothing. */
break; break;