static void adapter_hard_reset(elp_device * adapter)
{
int timeout;
CHECK_NULL(adapter);
/*
* take FLSH and ATTN high
*/
OUTB(CONTROL_ATTN|CONTROL_FLSH, adapter->io_addr+PORT_CONTROL);
/*
* wait for a little bit
*/
for (timeout = jiffies + 20; jiffies <= timeout; )
;
/*
* now take them low
*/
OUTB(0, adapter->io_addr+PORT_CONTROL);
/*
* wait for a little bit
*/
for (timeout = jiffies + 20; jiffies <= timeout; )
;
/*
* now hang around until the board gets it's act together
*/
for (timeout = jiffies + (100 * 15); jiffies <= timeout; )
if (GET_ASF() != ASF_PCB_END)
break;
}
static int send_pcb(struct net_device *dev, pcb_struct * pcb)
{
int i;
unsigned long timeout;
elp_device *adapter = dev->priv;
unsigned long flags;
check_3c505_dma(dev);
if (adapter->dmaing && adapter->current_dma.direction == 0)
return FALSE;
/* Avoid contention */
if (test_and_set_bit(1, &adapter->send_pcb_semaphore)) {
if (elp_debug >= 3) {
printk(KERN_DEBUG "%s: send_pcb entered while threaded\n", dev->name);
}
return FALSE;
}
/*
* load each byte into the command register and
* wait for the HCRE bit to indicate the adapter
* had read the byte
*/
set_hsf(dev, 0);
if (send_pcb_slow(dev->base_addr, pcb->command))
goto abort;
spin_lock_irqsave(&adapter->lock, flags);
if (send_pcb_fast(dev->base_addr, pcb->length))
goto sti_abort;
for (i = 0; i < pcb->length; i++) {
if (send_pcb_fast(dev->base_addr, pcb->data.raw[i]))
goto sti_abort;
}
outb_control(adapter->hcr_val | 3, dev); /* signal end of PCB */
outb_command(2 + pcb->length, dev->base_addr);
/* now wait for the acknowledgement */
spin_unlock_irqrestore(&adapter->lock, flags);
for (timeout = jiffies + 5*HZ/100; time_before(jiffies, timeout);) {
switch (GET_ASF(dev->base_addr)) {
case ASF_PCB_ACK:
adapter->send_pcb_semaphore = 0;
return TRUE;
case ASF_PCB_NAK:
#ifdef ELP_DEBUG
printk(KERN_DEBUG "%s: send_pcb got NAK\n", dev->name);
#endif
goto abort;
}
}
if (elp_debug >= 1)
printk(KERN_DEBUG "%s: timeout waiting for PCB acknowledge (status %02x)\n", dev->name, inb_status(dev->base_addr));
goto abort;
sti_abort:
spin_unlock_irqrestore(&adapter->lock, flags);
abort:
adapter->send_pcb_semaphore = 0;
return FALSE;
}
static int send_pcb(elp_device * adapter, pcb_struct * pcb)
{
int i;
int cont;
int retry = 0;
int timeout;
CHECK_NULL(pcb);
CHECK_NULL(adapter);
if (pcb->length > MAX_PCB_DATA)
printk(invalid_pcb_msg, pcb->length, filename, __LINE__);
while (1) {
cont = 1;
/*
* load each byte into the command register and
* wait for the HCRE bit to indicate the adapter
* had read the byte
*/
SET_HSF(0);
OUTB(pcb->command, (adapter->io_addr)+PORT_COMMAND);
cont = WAIT_HCRE(5);
if (cont) {
OUTB(pcb->length, (adapter->io_addr)+PORT_COMMAND);
cont = WAIT_HCRE(2);
}
for (i = 0; cont && (i < pcb->length); i++) {
OUTB(pcb->data.raw[i], (adapter->io_addr)+PORT_COMMAND);
cont = WAIT_HCRE(2);
}
/* set the host status bits to indicate end of PCB */
/* send the total packet length as well */
/* wait for the adapter to indicate that it has read the PCB */
if (cont) {
SET_HSF(HSF_PCB_END);
OUTB(2+pcb->length, adapter->io_addr+PORT_COMMAND);
timeout = jiffies + 6;
while (jiffies < timeout) {
i = GET_ASF();
if ((i == ASF_PCB_ACK) ||
(i == ASF_PCB_NAK))
break;
}
if (jiffies >= timeout)
TIMEOUT_MSG();
if (i == ASF_PCB_ACK) {
SET_HSF(0);
return TRUE;
} else if (i == ASF_PCB_NAK) {
SET_HSF(0);
printk("%s: PCB send was NAKed\n", adapter->name);
{
int to = jiffies + 5;
while (jiffies < to)
;
}
}
}
if (elp_debug >= 2)
printk("%s: NAK/timeout on send PCB\n", adapter->name);
if ((retry++ & 7) == 0)
printk("%s: retry #%i on send PCB\n", adapter->name, retry);
}
return FALSE;
}
static bool send_pcb(struct net_device *dev, pcb_struct * pcb)
{
int i;
unsigned long timeout;
elp_device *adapter = netdev_priv(dev);
unsigned long flags;
check_3c505_dma(dev);
if (adapter->dmaing && adapter->current_dma.direction == 0)
return false;
if (test_and_set_bit(1, &adapter->send_pcb_semaphore)) {
if (elp_debug >= 3) {
pr_debug("%s: send_pcb entered while threaded\n", dev->name);
}
return false;
}
set_hsf(dev, 0);
if (send_pcb_slow(dev->base_addr, pcb->command))
goto abort;
spin_lock_irqsave(&adapter->lock, flags);
if (send_pcb_fast(dev->base_addr, pcb->length))
goto sti_abort;
for (i = 0; i < pcb->length; i++) {
if (send_pcb_fast(dev->base_addr, pcb->data.raw[i]))
goto sti_abort;
}
outb_control(adapter->hcr_val | 3, dev);
outb_command(2 + pcb->length, dev->base_addr);
spin_unlock_irqrestore(&adapter->lock, flags);
for (timeout = jiffies + 5*HZ/100; time_before(jiffies, timeout);) {
switch (GET_ASF(dev->base_addr)) {
case ASF_PCB_ACK:
adapter->send_pcb_semaphore = 0;
return true;
case ASF_PCB_NAK:
#ifdef ELP_DEBUG
pr_debug("%s: send_pcb got NAK\n", dev->name);
#endif
goto abort;
}
}
if (elp_debug >= 1)
pr_debug("%s: timeout waiting for PCB acknowledge (status %02x)\n",
dev->name, inb_status(dev->base_addr));
goto abort;
sti_abort:
spin_unlock_irqrestore(&adapter->lock, flags);
abort:
adapter->send_pcb_semaphore = 0;
return false;
}