static void elp_set_mc_list(struct net_device *dev)
{
elp_device *adapter = (elp_device *) dev->priv;
struct dev_mc_list *dmi = dev->mc_list;
int i;
unsigned long flags;
if (elp_debug >= 3)
printk(KERN_DEBUG "%s: request to set multicast list\n", dev->name);
spin_lock_irqsave(&adapter->lock, flags);
if (!(dev->flags & (IFF_PROMISC | IFF_ALLMULTI))) {
/* send a "load multicast list" command to the board, max 10 addrs/cmd */
/* if num_addrs==0 the list will be cleared */
adapter->tx_pcb.command = CMD_LOAD_MULTICAST_LIST;
adapter->tx_pcb.length = 6 * dev->mc_count;
for (i = 0; i < dev->mc_count; i++) {
memcpy(adapter->tx_pcb.data.multicast[i], dmi->dmi_addr, 6);
dmi = dmi->next;
}
adapter->got[CMD_LOAD_MULTICAST_LIST] = 0;
if (!send_pcb(dev, &adapter->tx_pcb))
printk(KERN_ERR "%s: couldn't send set_multicast command\n", dev->name);
else {
unsigned long timeout = jiffies + TIMEOUT;
while (adapter->got[CMD_LOAD_MULTICAST_LIST] == 0 && time_before(jiffies, timeout));
if (time_after_eq(jiffies, timeout)) {
TIMEOUT_MSG(__LINE__);
}
}
if (dev->mc_count)
adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_BROAD | RECV_MULTI;
else /* num_addrs == 0 */
adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_BROAD;
} else
adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_PROMISC;
/*
* configure adapter to receive messages (as specified above)
* and wait for response
*/
if (elp_debug >= 3)
printk(KERN_DEBUG "%s: sending 82586 configure command\n", dev->name);
adapter->tx_pcb.command = CMD_CONFIGURE_82586;
adapter->tx_pcb.length = 2;
adapter->got[CMD_CONFIGURE_82586] = 0;
if (!send_pcb(dev, &adapter->tx_pcb))
{
spin_unlock_irqrestore(&adapter->lock, flags);
printk(KERN_ERR "%s: couldn't send 82586 configure command\n", dev->name);
}
else {
unsigned long timeout = jiffies + TIMEOUT;
spin_unlock_irqrestore(&adapter->lock, flags);
while (adapter->got[CMD_CONFIGURE_82586] == 0 && time_before(jiffies, timeout));
if (time_after_eq(jiffies, timeout))
TIMEOUT_MSG(__LINE__);
}
}
static void elp_set_mc_list(struct net_device *dev)
{
elp_device *adapter = netdev_priv(dev);
struct netdev_hw_addr *ha;
int i;
unsigned long flags;
if (elp_debug >= 3)
pr_debug("%s: request to set multicast list\n", dev->name);
spin_lock_irqsave(&adapter->lock, flags);
if (!(dev->flags & (IFF_PROMISC | IFF_ALLMULTI))) {
/* */
/* */
adapter->tx_pcb.command = CMD_LOAD_MULTICAST_LIST;
adapter->tx_pcb.length = 6 * netdev_mc_count(dev);
i = 0;
netdev_for_each_mc_addr(ha, dev)
memcpy(adapter->tx_pcb.data.multicast[i++],
ha->addr, 6);
adapter->got[CMD_LOAD_MULTICAST_LIST] = 0;
if (!send_pcb(dev, &adapter->tx_pcb))
pr_err("%s: couldn't send set_multicast command\n", dev->name);
else {
unsigned long timeout = jiffies + TIMEOUT;
while (adapter->got[CMD_LOAD_MULTICAST_LIST] == 0 && time_before(jiffies, timeout));
if (time_after_eq(jiffies, timeout)) {
TIMEOUT_MSG(__LINE__);
}
}
if (!netdev_mc_empty(dev))
adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_BROAD | RECV_MULTI;
else /* */
adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_BROAD;
} else
adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_PROMISC;
/*
*/
if (elp_debug >= 3)
pr_debug("%s: sending 82586 configure command\n", dev->name);
adapter->tx_pcb.command = CMD_CONFIGURE_82586;
adapter->tx_pcb.length = 2;
adapter->got[CMD_CONFIGURE_82586] = 0;
if (!send_pcb(dev, &adapter->tx_pcb))
{
spin_unlock_irqrestore(&adapter->lock, flags);
pr_err("%s: couldn't send 82586 configure command\n", dev->name);
}
else {
unsigned long timeout = jiffies + TIMEOUT;
spin_unlock_irqrestore(&adapter->lock, flags);
while (adapter->got[CMD_CONFIGURE_82586] == 0 && time_before(jiffies, timeout));
if (time_after_eq(jiffies, timeout))
TIMEOUT_MSG(__LINE__);
}
}
static void elp_set_mc_list(struct device *dev, int num_addrs, void *addrs)
{
elp_device *adapter = (elp_device *) dev->priv;
int i;
if (elp_debug >= 3)
printk("%s: request to set multicast list\n", dev->name);
if (num_addrs != -1) {
/* send a "load multicast list" command to the board, max 10 addrs/cmd */
/* if num_addrs==0 the list will be cleared */
adapter->tx_pcb.command = CMD_LOAD_MULTICAST_LIST;
adapter->tx_pcb.length = 6*num_addrs;
for (i=0; i<num_addrs; i++)
memcpy(adapter->tx_pcb.data.multicast[i], addrs+6*i,6);
adapter->got[CMD_LOAD_MULTICAST_LIST] = 0;
if (!send_pcb(adapter, &adapter->tx_pcb))
printk("%s: couldn't send set_multicast command\n", dev->name);
else {
int timeout = jiffies + TIMEOUT;
while (adapter->got[CMD_LOAD_MULTICAST_LIST] == 0 && jiffies < timeout)
;
if (jiffies >= timeout) {
TIMEOUT_MSG();
}
}
if (num_addrs)
adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_BROAD | RECV_MULTI;
else /* num_addrs == 0 */
adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_BROAD;
} else /* num_addrs == -1 */
adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_ALL;
/*
* configure adapter to receive messages (as specified above)
* and wait for response
*/
if (elp_debug >= 3)
printk("%s: sending 82586 configure command\n", dev->name);
adapter->tx_pcb.command = CMD_CONFIGURE_82586;
adapter->tx_pcb.length = 2;
adapter->got[CMD_CONFIGURE_82586] = 0;
if (!send_pcb(adapter, &adapter->tx_pcb))
printk("%s: couldn't send 82586 configure command\n", dev->name);
else {
int timeout = jiffies + TIMEOUT;
while (adapter->got[CMD_CONFIGURE_82586] == 0 && jiffies < timeout)
;
if (jiffies >= timeout)
TIMEOUT_MSG();
}
}
static struct enet_statistics * elp_get_stats(struct device *dev)
{
elp_device *adapter = (elp_device *) dev->priv;
if (elp_debug >= 3)
printk("%s: request for stats\n", dev->name);
/* If the device is closed, just return the latest stats we have,
- we cannot ask from the adapter without interrupts */
if (!dev->start)
return &adapter->stats;
/* send a get statistics command to the board */
adapter->tx_pcb.command = CMD_NETWORK_STATISTICS;
adapter->tx_pcb.length = 0;
adapter->got[CMD_NETWORK_STATISTICS] = 0;
if (!send_pcb(adapter, &adapter->tx_pcb))
printk("%s: couldn't send get statistics command\n", dev->name);
else
{
int timeout = jiffies + TIMEOUT;
while (adapter->got[CMD_NETWORK_STATISTICS] == 0 && jiffies < timeout)
;
if (jiffies >= timeout) {
TIMEOUT_MSG();
return &adapter->stats;
}
}
/* statistics are now up to date */
return &adapter->stats;
}
static struct net_device_stats *elp_get_stats(struct net_device *dev)
{
elp_device *adapter = netdev_priv(dev);
if (elp_debug >= 3)
pr_debug("%s: request for stats\n", dev->name);
if (!netif_running(dev))
return &dev->stats;
adapter->tx_pcb.command = CMD_NETWORK_STATISTICS;
adapter->tx_pcb.length = 0;
adapter->got[CMD_NETWORK_STATISTICS] = 0;
if (!send_pcb(dev, &adapter->tx_pcb))
pr_err("%s: couldn't send get statistics command\n", dev->name);
else {
unsigned long timeout = jiffies + TIMEOUT;
while (adapter->got[CMD_NETWORK_STATISTICS] == 0 && time_before(jiffies, timeout));
if (time_after_eq(jiffies, timeout)) {
TIMEOUT_MSG(__LINE__);
return &dev->stats;
}
}
return &dev->stats;
}
static struct net_device_stats *elp_get_stats(struct net_device *dev)
{
elp_device *adapter = (elp_device *) dev->priv;
if (elp_debug >= 3)
printk(KERN_DEBUG "%s: request for stats\n", dev->name);
/* If the device is closed, just return the latest stats we have,
- we cannot ask from the adapter without interrupts */
if (!netif_running(dev))
return &adapter->stats;
/* send a get statistics command to the board */
adapter->tx_pcb.command = CMD_NETWORK_STATISTICS;
adapter->tx_pcb.length = 0;
adapter->got[CMD_NETWORK_STATISTICS] = 0;
if (!send_pcb(dev, &adapter->tx_pcb))
printk(KERN_ERR "%s: couldn't send get statistics command\n", dev->name);
else {
unsigned long timeout = jiffies + TIMEOUT;
while (adapter->got[CMD_NETWORK_STATISTICS] == 0 && time_before(jiffies, timeout));
if (time_after_eq(jiffies, timeout)) {
TIMEOUT_MSG(__LINE__);
return &adapter->stats;
}
}
/* statistics are now up to date */
return &adapter->stats;
}
static netdev_tx_t send_packet(struct net_device *dev, struct sk_buff *skb)
{
elp_device *adapter = netdev_priv(dev);
unsigned long target;
unsigned long flags;
unsigned int nlen = (((skb->len < 60) ? 60 : skb->len) + 1) & (~1);
if (test_and_set_bit(0, (void *) &adapter->busy)) {
if (elp_debug >= 2)
pr_debug("%s: transmit blocked\n", dev->name);
return false;
}
dev->stats.tx_bytes += nlen;
adapter->tx_pcb.command = CMD_TRANSMIT_PACKET;
adapter->tx_pcb.length = sizeof(struct Xmit_pkt);
adapter->tx_pcb.data.xmit_pkt.buf_ofs
= adapter->tx_pcb.data.xmit_pkt.buf_seg = 0;
adapter->tx_pcb.data.xmit_pkt.pkt_len = nlen;
if (!send_pcb(dev, &adapter->tx_pcb)) {
adapter->busy = 0;
return false;
}
if (test_and_set_bit(0, (void *) &adapter->dmaing))
pr_debug("%s: tx: DMA %d in progress\n", dev->name, adapter->current_dma.direction);
adapter->current_dma.direction = 1;
adapter->current_dma.start_time = jiffies;
if ((unsigned long)(skb->data + nlen) >= MAX_DMA_ADDRESS || nlen != skb->len) {
skb_copy_from_linear_data(skb, adapter->dma_buffer, nlen);
memset(adapter->dma_buffer+skb->len, 0, nlen-skb->len);
target = isa_virt_to_bus(adapter->dma_buffer);
}
else {
target = isa_virt_to_bus(skb->data);
}
adapter->current_dma.skb = skb;
flags=claim_dma_lock();
disable_dma(dev->dma);
clear_dma_ff(dev->dma);
set_dma_mode(dev->dma, 0x48);
set_dma_addr(dev->dma, target);
set_dma_count(dev->dma, nlen);
outb_control(adapter->hcr_val | DMAE | TCEN, dev);
enable_dma(dev->dma);
release_dma_lock(flags);
if (elp_debug >= 3)
pr_debug("%s: DMA transfer started\n", dev->name);
return true;
}
static int send_packet (elp_device * adapter, unsigned char * ptr, int len)
{
int i;
/*
* make sure the length is even and no shorter than 60 bytes
*/
unsigned int nlen = (((len < 60) ? 60 : len) + 1) & (~1);
CHECK_NULL(adapter);
CHECK_NULL(ptr);
if (nlen < len)
printk("Warning, bad length nlen=%d len=%d %s(%d)\n",nlen,len,filename,__LINE__);
/*
* send the adapter a transmit packet command. Ignore segment and offset
* and make sure the length is even
*/
adapter->tx_pcb.command = CMD_TRANSMIT_PACKET;
adapter->tx_pcb.length = sizeof(struct Xmit_pkt);
adapter->tx_pcb.data.xmit_pkt.buf_ofs = adapter->tx_pcb.data.xmit_pkt.buf_seg = 0; /* Unused */
adapter->tx_pcb.data.xmit_pkt.pkt_len = nlen;
if (!send_pcb(adapter, &adapter->tx_pcb))
return FALSE;
/*
* make sure the data register is going the right way
*/
cli();
OUTB(INB(adapter->io_addr+PORT_CONTROL)&(~CONTROL_DIR), adapter->io_addr+PORT_CONTROL);
sti();
/*
* write data to the adapter
*/
for (i = 0; i < (nlen/2); i++) {
int timeout = jiffies + TIMEOUT;
while ((INB(adapter->io_addr+PORT_STATUS)&STATUS_HRDY) == 0 && jiffies < timeout)
;
if (jiffies >= timeout) {
printk("*** timeout at %s(%d) writing word %d of %d ***\n",
filename,__LINE__, i, nlen/2);
return FALSE;
}
outw(*(short *)ptr, adapter->io_addr+PORT_DATA);
ptr +=2;
}
return TRUE;
}
static int start_receive(elp_device * adapter, pcb_struct * tx_pcb)
{
CHECK_NULL(adapter);
CHECK_NULL(tx_pcb);
if (elp_debug >= 3)
printk("%s: restarting receiver\n", adapter->name);
tx_pcb->command = CMD_RECEIVE_PACKET;
tx_pcb->length = sizeof(struct Rcv_pkt);
tx_pcb->data.rcv_pkt.buf_seg = tx_pcb->data.rcv_pkt.buf_ofs = 0; /* Unused */
tx_pcb->data.rcv_pkt.buf_len = 1600;
tx_pcb->data.rcv_pkt.timeout = 0; /* set timeout to zero */
return send_pcb(adapter, tx_pcb);
}
static bool start_receive(struct net_device *dev, pcb_struct * tx_pcb)
{
bool status;
elp_device *adapter = netdev_priv(dev);
if (elp_debug >= 3)
pr_debug("%s: restarting receiver\n", dev->name);
tx_pcb->command = CMD_RECEIVE_PACKET;
tx_pcb->length = sizeof(struct Rcv_pkt);
tx_pcb->data.rcv_pkt.buf_seg
= tx_pcb->data.rcv_pkt.buf_ofs = 0;
tx_pcb->data.rcv_pkt.buf_len = 1600;
tx_pcb->data.rcv_pkt.timeout = 0;
status = send_pcb(dev, tx_pcb);
if (status)
adapter->rx_active++;
return status;
}
static int start_receive(struct net_device *dev, pcb_struct * tx_pcb)
{
int status;
elp_device *adapter = dev->priv;
if (elp_debug >= 3)
printk(KERN_DEBUG "%s: restarting receiver\n", dev->name);
tx_pcb->command = CMD_RECEIVE_PACKET;
tx_pcb->length = sizeof(struct Rcv_pkt);
tx_pcb->data.rcv_pkt.buf_seg
= tx_pcb->data.rcv_pkt.buf_ofs = 0; /* Unused */
tx_pcb->data.rcv_pkt.buf_len = 1600;
tx_pcb->data.rcv_pkt.timeout = 0; /* set timeout to zero */
status = send_pcb(dev, tx_pcb);
if (status)
adapter->rx_active++;
return status;
}
static int send_packet(struct net_device *dev, struct sk_buff *skb)
{
elp_device *adapter = dev->priv;
unsigned long target;
unsigned long flags;
/*
* make sure the length is even and no shorter than 60 bytes
*/
unsigned int nlen = (((skb->len < 60) ? 60 : skb->len) + 1) & (~1);
if (test_and_set_bit(0, (void *) &adapter->busy)) {
if (elp_debug >= 2)
printk(KERN_DEBUG "%s: transmit blocked\n", dev->name);
return FALSE;
}
adapter->stats.tx_bytes += nlen;
/*
* send the adapter a transmit packet command. Ignore segment and offset
* and make sure the length is even
*/
adapter->tx_pcb.command = CMD_TRANSMIT_PACKET;
adapter->tx_pcb.length = sizeof(struct Xmit_pkt);
adapter->tx_pcb.data.xmit_pkt.buf_ofs
= adapter->tx_pcb.data.xmit_pkt.buf_seg = 0; /* Unused */
adapter->tx_pcb.data.xmit_pkt.pkt_len = nlen;
if (!send_pcb(dev, &adapter->tx_pcb)) {
adapter->busy = 0;
return FALSE;
}
/* if this happens, we die */
if (test_and_set_bit(0, (void *) &adapter->dmaing))
printk(KERN_DEBUG "%s: tx: DMA %d in progress\n", dev->name, adapter->current_dma.direction);
adapter->current_dma.direction = 1;
adapter->current_dma.start_time = jiffies;
if ((unsigned long)(skb->data + nlen) >= MAX_DMA_ADDRESS || nlen != skb->len) {
skb_copy_from_linear_data(skb, adapter->dma_buffer, nlen);
memset(adapter->dma_buffer+skb->len, 0, nlen-skb->len);
target = isa_virt_to_bus(adapter->dma_buffer);
}
else {
target = isa_virt_to_bus(skb->data);
}
adapter->current_dma.skb = skb;
flags=claim_dma_lock();
disable_dma(dev->dma);
clear_dma_ff(dev->dma);
set_dma_mode(dev->dma, 0x48); /* dma memory -> io */
set_dma_addr(dev->dma, target);
set_dma_count(dev->dma, nlen);
outb_control(adapter->hcr_val | DMAE | TCEN, dev);
enable_dma(dev->dma);
release_dma_lock(flags);
if (elp_debug >= 3)
printk(KERN_DEBUG "%s: DMA transfer started\n", dev->name);
return TRUE;
}
static int elp_open(struct net_device *dev)
{
elp_device *adapter;
int retval;
adapter = dev->priv;
if (elp_debug >= 3)
printk(KERN_DEBUG "%s: request to open device\n", dev->name);
/*
* make sure we actually found the device
*/
if (adapter == NULL) {
printk(KERN_ERR "%s: Opening a non-existent physical device\n", dev->name);
return -EAGAIN;
}
/*
* disable interrupts on the board
*/
outb_control(0, dev);
/*
* clear any pending interrupts
*/
inb_command(dev->base_addr);
adapter_reset(dev);
/*
* no receive PCBs active
*/
adapter->rx_active = 0;
adapter->busy = 0;
adapter->send_pcb_semaphore = 0;
adapter->rx_backlog.in = 0;
adapter->rx_backlog.out = 0;
spin_lock_init(&adapter->lock);
/*
* install our interrupt service routine
*/
if ((retval = request_irq(dev->irq, &elp_interrupt, 0, dev->name, dev))) {
printk(KERN_ERR "%s: could not allocate IRQ%d\n", dev->name, dev->irq);
return retval;
}
if ((retval = request_dma(dev->dma, dev->name))) {
free_irq(dev->irq, dev);
printk(KERN_ERR "%s: could not allocate DMA%d channel\n", dev->name, dev->dma);
return retval;
}
adapter->dma_buffer = (void *) dma_mem_alloc(DMA_BUFFER_SIZE);
if (!adapter->dma_buffer) {
printk(KERN_ERR "%s: could not allocate DMA buffer\n", dev->name);
free_dma(dev->dma);
free_irq(dev->irq, dev);
return -ENOMEM;
}
adapter->dmaing = 0;
/*
* enable interrupts on the board
*/
outb_control(CMDE, dev);
/*
* configure adapter memory: we need 10 multicast addresses, default==0
*/
if (elp_debug >= 3)
printk(KERN_DEBUG "%s: sending 3c505 memory configuration command\n", dev->name);
adapter->tx_pcb.command = CMD_CONFIGURE_ADAPTER_MEMORY;
adapter->tx_pcb.data.memconf.cmd_q = 10;
adapter->tx_pcb.data.memconf.rcv_q = 20;
adapter->tx_pcb.data.memconf.mcast = 10;
adapter->tx_pcb.data.memconf.frame = 20;
adapter->tx_pcb.data.memconf.rcv_b = 20;
adapter->tx_pcb.data.memconf.progs = 0;
adapter->tx_pcb.length = sizeof(struct Memconf);
adapter->got[CMD_CONFIGURE_ADAPTER_MEMORY] = 0;
if (!send_pcb(dev, &adapter->tx_pcb))
printk(KERN_ERR "%s: couldn't send memory configuration command\n", dev->name);
else {
unsigned long timeout = jiffies + TIMEOUT;
while (adapter->got[CMD_CONFIGURE_ADAPTER_MEMORY] == 0 && time_before(jiffies, timeout));
if (time_after_eq(jiffies, timeout))
TIMEOUT_MSG(__LINE__);
}
/*
* configure adapter to receive broadcast messages and wait for response
*/
if (elp_debug >= 3)
printk(KERN_DEBUG "%s: sending 82586 configure command\n", dev->name);
adapter->tx_pcb.command = CMD_CONFIGURE_82586;
adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_BROAD;
adapter->tx_pcb.length = 2;
adapter->got[CMD_CONFIGURE_82586] = 0;
if (!send_pcb(dev, &adapter->tx_pcb))
printk(KERN_ERR "%s: couldn't send 82586 configure command\n", dev->name);
else {
unsigned long timeout = jiffies + TIMEOUT;
while (adapter->got[CMD_CONFIGURE_82586] == 0 && time_before(jiffies, timeout));
if (time_after_eq(jiffies, timeout))
TIMEOUT_MSG(__LINE__);
}
/* enable burst-mode DMA */
/* outb(0x1, dev->base_addr + PORT_AUXDMA); */
/*
* queue receive commands to provide buffering
*/
prime_rx(dev);
if (elp_debug >= 3)
printk(KERN_DEBUG "%s: %d receive PCBs active\n", dev->name, adapter->rx_active);
/*
* device is now officially open!
*/
netif_start_queue(dev);
return 0;
}
static int __init elplus_setup(struct net_device *dev)
{
elp_device *adapter = dev->priv;
int i, tries, tries1, okay;
unsigned long timeout;
unsigned long cookie = 0;
int err = -ENODEV;
SET_MODULE_OWNER(dev);
/*
* setup adapter structure
*/
dev->base_addr = elp_autodetect(dev);
if (!dev->base_addr)
return -ENODEV;
adapter->send_pcb_semaphore = 0;
for (tries1 = 0; tries1 < 3; tries1++) {
outb_control((adapter->hcr_val | CMDE) & ~DIR, dev);
/* First try to write just one byte, to see if the card is
* responding at all normally.
*/
timeout = jiffies + 5*HZ/100;
okay = 0;
while (time_before(jiffies, timeout) && !(inb_status(dev->base_addr) & HCRE));
if ((inb_status(dev->base_addr) & HCRE)) {
outb_command(0, dev->base_addr); /* send a spurious byte */
timeout = jiffies + 5*HZ/100;
while (time_before(jiffies, timeout) && !(inb_status(dev->base_addr) & HCRE));
if (inb_status(dev->base_addr) & HCRE)
okay = 1;
}
if (!okay) {
/* Nope, it's ignoring the command register. This means that
* either it's still booting up, or it's died.
*/
printk(KERN_ERR "%s: command register wouldn't drain, ", dev->name);
if ((inb_status(dev->base_addr) & 7) == 3) {
/* If the adapter status is 3, it *could* still be booting.
* Give it the benefit of the doubt for 10 seconds.
*/
printk("assuming 3c505 still starting\n");
timeout = jiffies + 10*HZ;
while (time_before(jiffies, timeout) && (inb_status(dev->base_addr) & 7));
if (inb_status(dev->base_addr) & 7) {
printk(KERN_ERR "%s: 3c505 failed to start\n", dev->name);
} else {
okay = 1; /* It started */
}
} else {
/* Otherwise, it must just be in a strange
* state. We probably need to kick it.
*/
printk("3c505 is sulking\n");
}
}
for (tries = 0; tries < 5 && okay; tries++) {
/*
* Try to set the Ethernet address, to make sure that the board
* is working.
*/
adapter->tx_pcb.command = CMD_STATION_ADDRESS;
adapter->tx_pcb.length = 0;
cookie = probe_irq_on();
if (!send_pcb(dev, &adapter->tx_pcb)) {
printk(KERN_ERR "%s: could not send first PCB\n", dev->name);
probe_irq_off(cookie);
continue;
}
if (!receive_pcb(dev, &adapter->rx_pcb)) {
printk(KERN_ERR "%s: could not read first PCB\n", dev->name);
probe_irq_off(cookie);
continue;
}
if ((adapter->rx_pcb.command != CMD_ADDRESS_RESPONSE) ||
(adapter->rx_pcb.length != 6)) {
printk(KERN_ERR "%s: first PCB wrong (%d, %d)\n", dev->name, adapter->rx_pcb.command, adapter->rx_pcb.length);
probe_irq_off(cookie);
continue;
}
goto okay;
}
/* It's broken. Do a hard reset to re-initialise the board,
* and try again.
*/
printk(KERN_INFO "%s: resetting adapter\n", dev->name);
outb_control(adapter->hcr_val | FLSH | ATTN, dev);
outb_control(adapter->hcr_val & ~(FLSH | ATTN), dev);
}
printk(KERN_ERR "%s: failed to initialise 3c505\n", dev->name);
goto out;
okay:
if (dev->irq) { /* Is there a preset IRQ? */
int rpt = probe_irq_off(cookie);
if (dev->irq != rpt) {
printk(KERN_WARNING "%s: warning, irq %d configured but %d detected\n", dev->name, dev->irq, rpt);
}
/* if dev->irq == probe_irq_off(cookie), all is well */
} else /* No preset IRQ; just use what we can detect */
dev->irq = probe_irq_off(cookie);
switch (dev->irq) { /* Legal, sane? */
case 0:
printk(KERN_ERR "%s: IRQ probe failed: check 3c505 jumpers.\n",
dev->name);
goto out;
case 1:
case 6:
case 8:
case 13:
printk(KERN_ERR "%s: Impossible IRQ %d reported by probe_irq_off().\n",
dev->name, dev->irq);
goto out;
}
/*
* Now we have the IRQ number so we can disable the interrupts from
* the board until the board is opened.
*/
outb_control(adapter->hcr_val & ~CMDE, dev);
/*
* copy Ethernet address into structure
*/
for (i = 0; i < 6; i++)
dev->dev_addr[i] = adapter->rx_pcb.data.eth_addr[i];
/* find a DMA channel */
if (!dev->dma) {
if (dev->mem_start) {
dev->dma = dev->mem_start & 7;
}
else {
printk(KERN_WARNING "%s: warning, DMA channel not specified, using default\n", dev->name);
dev->dma = ELP_DMA;
}
}
/*
* print remainder of startup message
*/
printk(KERN_INFO "%s: 3c505 at %#lx, irq %d, dma %d, ",
dev->name, dev->base_addr, dev->irq, dev->dma);
printk("addr %02x:%02x:%02x:%02x:%02x:%02x, ",
dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
/*
* read more information from the adapter
*/
adapter->tx_pcb.command = CMD_ADAPTER_INFO;
adapter->tx_pcb.length = 0;
if (!send_pcb(dev, &adapter->tx_pcb) ||
!receive_pcb(dev, &adapter->rx_pcb) ||
(adapter->rx_pcb.command != CMD_ADAPTER_INFO_RESPONSE) ||
(adapter->rx_pcb.length != 10)) {
printk("not responding to second PCB\n");
}
printk("rev %d.%d, %dk\n", adapter->rx_pcb.data.info.major_vers, adapter->rx_pcb.data.info.minor_vers, adapter->rx_pcb.data.info.RAM_sz);
/*
* reconfigure the adapter memory to better suit our purposes
*/
adapter->tx_pcb.command = CMD_CONFIGURE_ADAPTER_MEMORY;
adapter->tx_pcb.length = 12;
adapter->tx_pcb.data.memconf.cmd_q = 8;
adapter->tx_pcb.data.memconf.rcv_q = 8;
adapter->tx_pcb.data.memconf.mcast = 10;
adapter->tx_pcb.data.memconf.frame = 10;
adapter->tx_pcb.data.memconf.rcv_b = 10;
adapter->tx_pcb.data.memconf.progs = 0;
if (!send_pcb(dev, &adapter->tx_pcb) ||
!receive_pcb(dev, &adapter->rx_pcb) ||
(adapter->rx_pcb.command != CMD_CONFIGURE_ADAPTER_RESPONSE) ||
(adapter->rx_pcb.length != 2)) {
printk(KERN_ERR "%s: could not configure adapter memory\n", dev->name);
}
if (adapter->rx_pcb.data.configure) {
printk(KERN_ERR "%s: adapter configuration failed\n", dev->name);
}
dev->open = elp_open; /* local */
dev->stop = elp_close; /* local */
dev->get_stats = elp_get_stats; /* local */
dev->hard_start_xmit = elp_start_xmit; /* local */
dev->tx_timeout = elp_timeout; /* local */
dev->watchdog_timeo = 10*HZ;
dev->set_multicast_list = elp_set_mc_list; /* local */
dev->ethtool_ops = &netdev_ethtool_ops; /* local */
memset(&(adapter->stats), 0, sizeof(struct net_device_stats));
dev->mem_start = dev->mem_end = 0;
err = register_netdev(dev);
if (err)
goto out;
return 0;
out:
release_region(dev->base_addr, ELP_IO_EXTENT);
return err;
}
static int elp_open(struct net_device *dev)
{
elp_device *adapter = netdev_priv(dev);
int retval;
if (elp_debug >= 3)
pr_debug("%s: request to open device\n", dev->name);
if (adapter == NULL) {
pr_err("%s: Opening a non-existent physical device\n", dev->name);
return -EAGAIN;
}
outb_control(0, dev);
inb_command(dev->base_addr);
adapter_reset(dev);
adapter->rx_active = 0;
adapter->busy = 0;
adapter->send_pcb_semaphore = 0;
adapter->rx_backlog.in = 0;
adapter->rx_backlog.out = 0;
spin_lock_init(&adapter->lock);
if ((retval = request_irq(dev->irq, elp_interrupt, 0, dev->name, dev))) {
pr_err("%s: could not allocate IRQ%d\n", dev->name, dev->irq);
return retval;
}
if ((retval = request_dma(dev->dma, dev->name))) {
free_irq(dev->irq, dev);
pr_err("%s: could not allocate DMA%d channel\n", dev->name, dev->dma);
return retval;
}
adapter->dma_buffer = (void *) dma_mem_alloc(DMA_BUFFER_SIZE);
if (!adapter->dma_buffer) {
pr_err("%s: could not allocate DMA buffer\n", dev->name);
free_dma(dev->dma);
free_irq(dev->irq, dev);
return -ENOMEM;
}
adapter->dmaing = 0;
outb_control(CMDE, dev);
if (elp_debug >= 3)
pr_debug("%s: sending 3c505 memory configuration command\n", dev->name);
adapter->tx_pcb.command = CMD_CONFIGURE_ADAPTER_MEMORY;
adapter->tx_pcb.data.memconf.cmd_q = 10;
adapter->tx_pcb.data.memconf.rcv_q = 20;
adapter->tx_pcb.data.memconf.mcast = 10;
adapter->tx_pcb.data.memconf.frame = 20;
adapter->tx_pcb.data.memconf.rcv_b = 20;
adapter->tx_pcb.data.memconf.progs = 0;
adapter->tx_pcb.length = sizeof(struct Memconf);
adapter->got[CMD_CONFIGURE_ADAPTER_MEMORY] = 0;
if (!send_pcb(dev, &adapter->tx_pcb))
pr_err("%s: couldn't send memory configuration command\n", dev->name);
else {
unsigned long timeout = jiffies + TIMEOUT;
while (adapter->got[CMD_CONFIGURE_ADAPTER_MEMORY] == 0 && time_before(jiffies, timeout));
if (time_after_eq(jiffies, timeout))
TIMEOUT_MSG(__LINE__);
}
if (elp_debug >= 3)
pr_debug("%s: sending 82586 configure command\n", dev->name);
adapter->tx_pcb.command = CMD_CONFIGURE_82586;
adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_BROAD;
adapter->tx_pcb.length = 2;
adapter->got[CMD_CONFIGURE_82586] = 0;
if (!send_pcb(dev, &adapter->tx_pcb))
pr_err("%s: couldn't send 82586 configure command\n", dev->name);
else {
unsigned long timeout = jiffies + TIMEOUT;
while (adapter->got[CMD_CONFIGURE_82586] == 0 && time_before(jiffies, timeout));
if (time_after_eq(jiffies, timeout))
TIMEOUT_MSG(__LINE__);
}
prime_rx(dev);
if (elp_debug >= 3)
pr_debug("%s: %d receive PCBs active\n", dev->name, adapter->rx_active);
netif_start_queue(dev);
return 0;
}
int elplus_probe(struct device *dev)
{
elp_device adapter;
int i;
CHECK_NULL(dev);
/*
* setup adapter structure
*/
adapter.io_addr = dev->base_addr = elp_autodetect(dev);
if ( !adapter.io_addr )
return -ENODEV;
/*
* As we enter here from bootup, the adapter should have IRQs enabled,
* but we can as well enable them anyway.
*/
OUTB(INB(dev->base_addr+PORT_CONTROL) | CONTROL_CMDE,
dev->base_addr+PORT_CONTROL);
autoirq_setup(0);
/*
* use ethernet address command to probe for board in polled mode
* (this also makes us the IRQ that we need for automatic detection)
*/
adapter.tx_pcb.command = CMD_STATION_ADDRESS;
adapter.tx_pcb.length = 0;
if (!send_pcb (&adapter, &adapter.tx_pcb) ||
!receive_pcb(&adapter, &adapter.rx_pcb) ||
(adapter.rx_pcb.command != CMD_ADDRESS_RESPONSE) ||
(adapter.rx_pcb.length != 6)) {
printk("%s: not responding to first PCB\n", dev->name);
return -ENODEV;
}
if (dev->irq) { /* Is there a preset IRQ? */
if (dev->irq != autoirq_report(0)) {
printk("%s: Detected IRQ doesn't match user-defined one.\n",dev->name);
return -ENODEV;
}
/* if dev->irq == autoirq_report(0), all is well */
} else /* No preset IRQ; just use what we can detect */
dev->irq=autoirq_report(0);
switch (dev->irq) { /* Legal, sane? */
case 0:
printk("%s: No IRQ reported by autoirq_report().\n",dev->name);
printk("%s: Check the jumpers of your 3c505 board.\n",dev->name);
return -ENODEV;
case 1:
case 6:
case 8:
case 13:
printk("%s: Impossible IRQ %d reported by autoirq_report().\n",
dev->name,
dev->irq);
return -ENODEV;
}
/*
* Now we have the IRQ number so we can disable the interrupts from
* the board until the board is opened.
*/
OUTB(INB(dev->base_addr+PORT_CONTROL) & ~CONTROL_CMDE,
dev->base_addr+PORT_CONTROL);
/*
* copy ethernet address into structure
*/
for (i = 0; i < 6; i++)
dev->dev_addr[i] = adapter.rx_pcb.data.eth_addr[i];
/*
* print remainder of startup message
*/
#if (ELP_KERNEL_TYPE < 2)
printk("%s: 3c505 card found at I/O 0x%x using IRQ%d has address %s\n",
dev->name, dev->base_addr, dev->irq, eth_print(dev->dev_addr));
#else
printk("%s: 3c505 card found at I/O 0x%x using IRQ%d has address %02x:%02x:%02x:%02x:%02x:%02x\n",
dev->name, dev->base_addr, dev->irq,
dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5]);
#endif
/*
* initialise the device
*/
elp_init(dev);
return 0;
}
static int elp_open (struct device *dev)
{
elp_device * adapter = (elp_device *) dev->priv;
CHECK_NULL(dev);
if (elp_debug >= 3)
printk("%s: request to open device\n", dev->name);
/*
* make sure we actually found the device
*/
if (adapter == NULL) {
printk("%s: Opening a non-existent physical device\n", dev->name);
return -EAGAIN;
}
/*
* disable interrupts on the board
*/
OUTB(0x00, adapter->io_addr+PORT_CONTROL);
/*
* clear any pending interrupts
*/
INB(adapter->io_addr+PORT_COMMAND);
/*
* interrupt routine not entered
*/
dev->interrupt = 0;
/*
* transmitter not busy
*/
dev->tbusy = 0;
/*
* install our interrupt service routine
*/
if (request_irq(dev->irq, &elp_interrupt, 0, "3c505"))
return -EAGAIN;
/*
* make sure we can find the device header given the interrupt number
*/
irq2dev_map[dev->irq] = dev;
/*
* enable interrupts on the board
*/
OUTB(CONTROL_CMDE, adapter->io_addr+PORT_CONTROL);
/*
* device is now officially open!
*/
dev->start = 1;
/*
* configure adapter memory: we need 10 multicast addresses, default==0
*/
if (elp_debug >= 3)
printk("%s: sending 3c505 memory configuration command\n", dev->name);
adapter->tx_pcb.command = CMD_CONFIGURE_ADAPTER_MEMORY;
adapter->tx_pcb.data.memconf.cmd_q = 10;
adapter->tx_pcb.data.memconf.rcv_q = 20;
adapter->tx_pcb.data.memconf.mcast = 10;
adapter->tx_pcb.data.memconf.frame = 20;
adapter->tx_pcb.data.memconf.rcv_b = 20;
adapter->tx_pcb.data.memconf.progs = 0;
adapter->tx_pcb.length = sizeof(struct Memconf);
adapter->got[CMD_CONFIGURE_ADAPTER_MEMORY] = 0;
if (!send_pcb(adapter, &adapter->tx_pcb))
printk("%s: couldn't send memory configuration command\n", dev->name);
else {
int timeout = jiffies + TIMEOUT;
while (adapter->got[CMD_CONFIGURE_ADAPTER_MEMORY] == 0 && jiffies < timeout)
;
if (jiffies >= timeout)
TIMEOUT_MSG();
}
/*
* configure adapter to receive broadcast messages and wait for response
*/
if (elp_debug >= 3)
printk("%s: sending 82586 configure command\n", dev->name);
adapter->tx_pcb.command = CMD_CONFIGURE_82586;
adapter->tx_pcb.data.configure = NO_LOOPBACK | RECV_BROAD;
adapter->tx_pcb.length = 2;
adapter->got[CMD_CONFIGURE_82586] = 0;
if (!send_pcb(adapter, &adapter->tx_pcb))
printk("%s: couldn't send 82586 configure command\n", dev->name);
else {
int timeout = jiffies + TIMEOUT;
while (adapter->got[CMD_CONFIGURE_82586] == 0 && jiffies < timeout)
;
if (jiffies >= timeout)
TIMEOUT_MSG();
}
/*
* queue receive commands to provide buffering
*/
if (!start_receive(adapter, &adapter->tx_pcb))
printk("%s: start receive command failed \n", dev->name);
if (elp_debug >= 3)
printk("%s: start receive command sent\n", dev->name);
return 0; /* Always succeed */
}
static int __init elplus_setup(struct net_device *dev)
{
elp_device *adapter = netdev_priv(dev);
int i, tries, tries1, okay;
unsigned long timeout;
unsigned long cookie = 0;
int err = -ENODEV;
dev->base_addr = elp_autodetect(dev);
if (!dev->base_addr)
return -ENODEV;
adapter->send_pcb_semaphore = 0;
for (tries1 = 0; tries1 < 3; tries1++) {
outb_control((adapter->hcr_val | CMDE) & ~DIR, dev);
timeout = jiffies + 5*HZ/100;
okay = 0;
while (time_before(jiffies, timeout) && !(inb_status(dev->base_addr) & HCRE));
if ((inb_status(dev->base_addr) & HCRE)) {
outb_command(0, dev->base_addr);
timeout = jiffies + 5*HZ/100;
while (time_before(jiffies, timeout) && !(inb_status(dev->base_addr) & HCRE));
if (inb_status(dev->base_addr) & HCRE)
okay = 1;
}
if (!okay) {
pr_err("%s: command register wouldn't drain, ", dev->name);
if ((inb_status(dev->base_addr) & 7) == 3) {
pr_cont("assuming 3c505 still starting\n");
timeout = jiffies + 10*HZ;
while (time_before(jiffies, timeout) && (inb_status(dev->base_addr) & 7));
if (inb_status(dev->base_addr) & 7) {
pr_err("%s: 3c505 failed to start\n", dev->name);
} else {
okay = 1;
}
} else {
pr_cont("3c505 is sulking\n");
}
}
for (tries = 0; tries < 5 && okay; tries++) {
adapter->tx_pcb.command = CMD_STATION_ADDRESS;
adapter->tx_pcb.length = 0;
cookie = probe_irq_on();
if (!send_pcb(dev, &adapter->tx_pcb)) {
pr_err("%s: could not send first PCB\n", dev->name);
probe_irq_off(cookie);
continue;
}
if (!receive_pcb(dev, &adapter->rx_pcb)) {
pr_err("%s: could not read first PCB\n", dev->name);
probe_irq_off(cookie);
continue;
}
if ((adapter->rx_pcb.command != CMD_ADDRESS_RESPONSE) ||
(adapter->rx_pcb.length != 6)) {
pr_err("%s: first PCB wrong (%d, %d)\n", dev->name,
adapter->rx_pcb.command, adapter->rx_pcb.length);
probe_irq_off(cookie);
continue;
}
goto okay;
}
pr_info("%s: resetting adapter\n", dev->name);
outb_control(adapter->hcr_val | FLSH | ATTN, dev);
outb_control(adapter->hcr_val & ~(FLSH | ATTN), dev);
}
pr_err("%s: failed to initialise 3c505\n", dev->name);
goto out;
okay:
if (dev->irq) {
int rpt = probe_irq_off(cookie);
if (dev->irq != rpt) {
pr_warning("%s: warning, irq %d configured but %d detected\n", dev->name, dev->irq, rpt);
}
} else
dev->irq = probe_irq_off(cookie);
switch (dev->irq) {
case 0:
pr_err("%s: IRQ probe failed: check 3c505 jumpers.\n",
dev->name);
goto out;
case 1:
case 6:
case 8:
case 13:
pr_err("%s: Impossible IRQ %d reported by probe_irq_off().\n",
dev->name, dev->irq);
goto out;
}
outb_control(adapter->hcr_val & ~CMDE, dev);
for (i = 0; i < 6; i++)
dev->dev_addr[i] = adapter->rx_pcb.data.eth_addr[i];
if (!dev->dma) {
if (dev->mem_start) {
dev->dma = dev->mem_start & 7;
}
else {
pr_warning("%s: warning, DMA channel not specified, using default\n", dev->name);
dev->dma = ELP_DMA;
}
}
pr_info("%s: 3c505 at %#lx, irq %d, dma %d, addr %pM, ",
dev->name, dev->base_addr, dev->irq, dev->dma, dev->dev_addr);
adapter->tx_pcb.command = CMD_ADAPTER_INFO;
adapter->tx_pcb.length = 0;
if (!send_pcb(dev, &adapter->tx_pcb) ||
!receive_pcb(dev, &adapter->rx_pcb) ||
(adapter->rx_pcb.command != CMD_ADAPTER_INFO_RESPONSE) ||
(adapter->rx_pcb.length != 10)) {
pr_cont("not responding to second PCB\n");
}
pr_cont("rev %d.%d, %dk\n", adapter->rx_pcb.data.info.major_vers,
adapter->rx_pcb.data.info.minor_vers, adapter->rx_pcb.data.info.RAM_sz);
adapter->tx_pcb.command = CMD_CONFIGURE_ADAPTER_MEMORY;
adapter->tx_pcb.length = 12;
adapter->tx_pcb.data.memconf.cmd_q = 8;
adapter->tx_pcb.data.memconf.rcv_q = 8;
adapter->tx_pcb.data.memconf.mcast = 10;
adapter->tx_pcb.data.memconf.frame = 10;
adapter->tx_pcb.data.memconf.rcv_b = 10;
adapter->tx_pcb.data.memconf.progs = 0;
if (!send_pcb(dev, &adapter->tx_pcb) ||
!receive_pcb(dev, &adapter->rx_pcb) ||
(adapter->rx_pcb.command != CMD_CONFIGURE_ADAPTER_RESPONSE) ||
(adapter->rx_pcb.length != 2)) {
pr_err("%s: could not configure adapter memory\n", dev->name);
}
if (adapter->rx_pcb.data.configure) {
pr_err("%s: adapter configuration failed\n", dev->name);
}
dev->netdev_ops = &elp_netdev_ops;
dev->watchdog_timeo = 10*HZ;
dev->ethtool_ops = &netdev_ethtool_ops;
dev->mem_start = dev->mem_end = 0;
err = register_netdev(dev);
if (err)
goto out;
return 0;
out:
release_region(dev->base_addr, ELP_IO_EXTENT);
return err;
}
