static void sonic_tx_timeout(struct net_device *dev)
{
struct sonic_local *lp = netdev_priv(dev);
int i;
/*
* put the Sonic into software-reset mode and
* disable all interrupts before releasing DMA buffers
*/
SONIC_WRITE(SONIC_IMR, 0);
SONIC_WRITE(SONIC_ISR, 0x7fff);
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
/* We could resend the original skbs. Easier to re-initialise. */
for (i = 0; i < SONIC_NUM_TDS; i++) {
if(lp->tx_laddr[i]) {
dma_unmap_single(lp->device, lp->tx_laddr[i], lp->tx_len[i], DMA_TO_DEVICE);
lp->tx_laddr[i] = (dma_addr_t)0;
}
if(lp->tx_skb[i]) {
dev_kfree_skb(lp->tx_skb[i]);
lp->tx_skb[i] = NULL;
}
}
/* Try to restart the adaptor. */
sonic_init(dev);
lp->stats.tx_errors++;
dev->trans_start = jiffies; /* prevent tx timeout */
netif_wake_queue(dev);
}
static void __devinit mac_onboard_sonic_ethernet_addr(struct net_device *dev)
{
struct sonic_local *lp = netdev_priv(dev);
const int prom_addr = ONBOARD_SONIC_PROM_BASE;
unsigned short val;
if (hwreg_present((void *)prom_addr)) {
int i;
for (i = 0; i < 6; i++)
dev->dev_addr[i] = SONIC_READ_PROM(i);
if (!INVALID_MAC(dev->dev_addr))
return;
bit_reverse_addr(dev->dev_addr);
if (!INVALID_MAC(dev->dev_addr))
return;
printk(KERN_WARNING "macsonic: MAC address in PROM seems "
"to be invalid, trying CAM\n");
} else {
printk(KERN_WARNING "macsonic: cannot read MAC address from "
"PROM, trying CAM\n");
}
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
SONIC_WRITE(SONIC_CEP, 15);
val = SONIC_READ(SONIC_CAP2);
dev->dev_addr[5] = val >> 8;
dev->dev_addr[4] = val & 0xff;
val = SONIC_READ(SONIC_CAP1);
dev->dev_addr[3] = val >> 8;
dev->dev_addr[2] = val & 0xff;
val = SONIC_READ(SONIC_CAP0);
dev->dev_addr[1] = val >> 8;
dev->dev_addr[0] = val & 0xff;
if (!INVALID_MAC(dev->dev_addr))
return;
printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 "
"seems invalid, will use a random MAC\n");
random_ether_addr(dev->dev_addr);
}
static int __init mac_onboard_sonic_ethernet_addr(struct net_device *dev)
{
struct sonic_local *lp = netdev_priv(dev);
const int prom_addr = ONBOARD_SONIC_PROM_BASE;
int i;
/* On NuBus boards we can sometimes look in the ROM resources.
No such luck for comm-slot/onboard. */
for(i = 0; i < 6; i++)
dev->dev_addr[i] = SONIC_READ_PROM(i);
/* Most of the time, the address is bit-reversed. The NetBSD
source has a rather long and detailed historical account of
why this is so. */
if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
memcmp(dev->dev_addr, "\x00\x05\x02", 3))
bit_reverse_addr(dev->dev_addr);
else
return 0;
/* If we still have what seems to be a bogus address, we'll
look in the CAM. The top entry should be ours. */
/* Danger! This only works if MacOS has already initialized
the card... */
if (memcmp(dev->dev_addr, "\x08\x00\x07", 3) &&
memcmp(dev->dev_addr, "\x00\xA0\x40", 3) &&
memcmp(dev->dev_addr, "\x00\x80\x19", 3) &&
memcmp(dev->dev_addr, "\x00\x05\x02", 3))
{
unsigned short val;
printk(KERN_INFO "macsonic: PROM seems to be wrong, trying CAM entry 15\n");
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
SONIC_WRITE(SONIC_CEP, 15);
val = SONIC_READ(SONIC_CAP2);
dev->dev_addr[5] = val >> 8;
dev->dev_addr[4] = val & 0xff;
val = SONIC_READ(SONIC_CAP1);
dev->dev_addr[3] = val >> 8;
dev->dev_addr[2] = val & 0xff;
val = SONIC_READ(SONIC_CAP0);
dev->dev_addr[1] = val >> 8;
dev->dev_addr[0] = val & 0xff;
printk(KERN_INFO "HW Address from CAM 15: %pM\n",
dev->dev_addr);
} else return 0;
/*
* Get the current statistics.
* This may be called with the device open or closed.
*/
static struct net_device_stats *
sonic_get_stats(struct net_device *dev)
{
struct sonic_local *lp = (struct sonic_local *)dev->priv;
unsigned int base_addr = dev->base_addr;
/* read the tally counter from the SONIC and reset them */
lp->stats.rx_crc_errors += SONIC_READ(SONIC_CRCT);
SONIC_WRITE(SONIC_CRCT,0xffff);
lp->stats.rx_frame_errors += SONIC_READ(SONIC_FAET);
SONIC_WRITE(SONIC_FAET,0xffff);
lp->stats.rx_missed_errors += SONIC_READ(SONIC_MPT);
SONIC_WRITE(SONIC_MPT,0xffff);
return &lp->stats;
}
static int __init macsonic_init(struct net_device *dev)
{
struct sonic_local* lp = netdev_priv(dev);
/* Allocate the entire chunk of memory for the descriptors.
Note that this cannot cross a 64K boundary. */
if ((lp->descriptors = dma_alloc_coherent(lp->device,
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
&lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n", lp->device->bus_id);
return -ENOMEM;
}
/* Now set up the pointers to point to the appropriate places */
lp->cda = lp->descriptors;
lp->tda = lp->cda + (SIZEOF_SONIC_CDA
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->cda_laddr = lp->descriptors_laddr;
lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
dev->open = macsonic_open;
dev->stop = macsonic_close;
dev->hard_start_xmit = sonic_send_packet;
dev->get_stats = sonic_get_stats;
dev->set_multicast_list = &sonic_multicast_list;
dev->tx_timeout = sonic_tx_timeout;
dev->watchdog_timeo = TX_TIMEOUT;
/*
* clear tally counter
*/
SONIC_WRITE(SONIC_CRCT, 0xffff);
SONIC_WRITE(SONIC_FAET, 0xffff);
SONIC_WRITE(SONIC_MPT, 0xffff);
return 0;
}
static int __devinit macsonic_init(struct net_device *dev)
{
struct sonic_local* lp = netdev_priv(dev);
/* Allocate the entire chunk of memory for the descriptors.
Note that this cannot cross a 64K boundary. */
if ((lp->descriptors = dma_alloc_coherent(lp->device,
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
&lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n",
dev_name(lp->device));
return -ENOMEM;
}
/* Now set up the pointers to point to the appropriate places */
lp->cda = lp->descriptors;
lp->tda = lp->cda + (SIZEOF_SONIC_CDA
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->cda_laddr = lp->descriptors_laddr;
lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
dev->netdev_ops = &macsonic_netdev_ops;
dev->watchdog_timeo = TX_TIMEOUT;
/*
* clear tally counter
*/
SONIC_WRITE(SONIC_CRCT, 0xffff);
SONIC_WRITE(SONIC_FAET, 0xffff);
SONIC_WRITE(SONIC_MPT, 0xffff);
return 0;
}
/*
* Close the SONIC device
*/
static int sonic_close(struct net_device *dev)
{
struct sonic_local *lp = netdev_priv(dev);
int i;
if (sonic_debug > 2)
printk("sonic_close\n");
netif_stop_queue(dev);
/*
* stop the SONIC, disable interrupts
*/
SONIC_WRITE(SONIC_IMR, 0);
SONIC_WRITE(SONIC_ISR, 0x7fff);
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
/* unmap and free skbs that haven't been transmitted */
for (i = 0; i < SONIC_NUM_TDS; i++) {
if(lp->tx_laddr[i]) {
dma_unmap_single(lp->device, lp->tx_laddr[i], lp->tx_len[i], DMA_TO_DEVICE);
lp->tx_laddr[i] = (dma_addr_t)0;
}
if(lp->tx_skb[i]) {
dev_kfree_skb(lp->tx_skb[i]);
lp->tx_skb[i] = NULL;
}
}
/* unmap and free the receive buffers */
for (i = 0; i < SONIC_NUM_RRS; i++) {
if(lp->rx_laddr[i]) {
dma_unmap_single(lp->device, lp->rx_laddr[i], SONIC_RBSIZE, DMA_FROM_DEVICE);
lp->rx_laddr[i] = (dma_addr_t)0;
}
if(lp->rx_skb[i]) {
dev_kfree_skb(lp->rx_skb[i]);
lp->rx_skb[i] = NULL;
}
}
return 0;
}
/*
* Set or clear the multicast filter for this adaptor.
*/
static void
sonic_multicast_list(struct net_device *dev)
{
struct sonic_local *lp = (struct sonic_local *)dev->priv;
unsigned int base_addr = dev->base_addr;
unsigned int rcr;
struct dev_mc_list *dmi = dev->mc_list;
unsigned char *addr;
int i;
rcr = SONIC_READ(SONIC_RCR) & ~(SONIC_RCR_PRO | SONIC_RCR_AMC);
rcr |= SONIC_RCR_BRD; /* accept broadcast packets */
if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */
rcr |= SONIC_RCR_PRO;
} else {
if ((dev->flags & IFF_ALLMULTI) || (dev->mc_count > 15)) {
rcr |= SONIC_RCR_AMC;
} else {
if (sonic_debug > 2)
printk ("sonic_multicast_list: mc_count %d\n",dev->mc_count);
lp->cda.cam_enable = 1; /* always enable our own address */
for (i = 1; i <= dev->mc_count; i++) {
addr = dmi->dmi_addr;
dmi = dmi->next;
lp->cda.cam_desc[i].cam_cap0 = addr[1] << 8 | addr[0];
lp->cda.cam_desc[i].cam_cap1 = addr[3] << 8 | addr[2];
lp->cda.cam_desc[i].cam_cap2 = addr[5] << 8 | addr[4];
lp->cda.cam_enable |= (1 << i);
}
SONIC_WRITE(SONIC_CDC,16);
/* issue Load CAM command */
SONIC_WRITE(SONIC_CDP, lp->cda_laddr & 0xffff);
SONIC_WRITE(SONIC_CMD,SONIC_CR_LCAM);
}
}
if (sonic_debug > 2)
printk("sonic_multicast_list: setting RCR=%x\n",rcr);
SONIC_WRITE(SONIC_RCR,rcr);
}
static int __devinit macsonic_init(struct net_device *dev)
{
struct sonic_local* lp = netdev_priv(dev);
if ((lp->descriptors = dma_alloc_coherent(lp->device,
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
&lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n",
dev_name(lp->device));
return -ENOMEM;
}
lp->cda = lp->descriptors;
lp->tda = lp->cda + (SIZEOF_SONIC_CDA
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->cda_laddr = lp->descriptors_laddr;
lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
dev->netdev_ops = &macsonic_netdev_ops;
dev->watchdog_timeo = TX_TIMEOUT;
SONIC_WRITE(SONIC_CRCT, 0xffff);
SONIC_WRITE(SONIC_FAET, 0xffff);
SONIC_WRITE(SONIC_MPT, 0xffff);
return 0;
}
/*
* Close the SONIC device
*/
static int
sonic_close(struct net_device *dev)
{
unsigned int base_addr = dev->base_addr;
if (sonic_debug > 2)
printk ("sonic_close\n");
dev->tbusy = 1;
dev->start = 0;
/*
* stop the SONIC, disable interrupts
*/
SONIC_WRITE(SONIC_ISR,0x7fff);
SONIC_WRITE(SONIC_IMR,0);
SONIC_WRITE(SONIC_CMD,SONIC_CR_RST);
sonic_free_irq(dev->irq, dev); /* release the IRQ */
return 0;
}
/*
* We have a good packet(s), get it/them out of the buffers.
*/
static void
sonic_rx(struct net_device *dev)
{
unsigned int base_addr = dev->base_addr;
struct sonic_local *lp = (struct sonic_local *)dev->priv;
sonic_rd_t *rd = &lp->rda[lp->cur_rx & SONIC_RDS_MASK];
int status;
while (rd->in_use == 0) {
struct sk_buff *skb;
int pkt_len;
unsigned char *pkt_ptr;
status = rd->rx_status;
if (sonic_debug > 3)
printk ("status %x, cur_rx %d, cur_rra %x\n",status,lp->cur_rx,lp->cur_rra);
if (status & SONIC_RCR_PRX) {
pkt_len = rd->rx_pktlen;
pkt_ptr = (char *)sonic_chiptomem((rd->rx_pktptr_h << 16) +
rd->rx_pktptr_l);
if (sonic_debug > 3)
printk ("pktptr %p (rba %p) h:%x l:%x, bsize h:%x l:%x\n", pkt_ptr,lp->rba,
rd->rx_pktptr_h,rd->rx_pktptr_l,
SONIC_READ(SONIC_RBWC1),SONIC_READ(SONIC_RBWC0));
/* Malloc up new buffer. */
skb = dev_alloc_skb(pkt_len+2);
if (skb == NULL) {
printk("%s: Memory squeeze, dropping packet.\n", dev->name);
lp->stats.rx_dropped++;
break;
}
skb->dev = dev;
skb_reserve(skb,2); /* 16 byte align */
skb_put(skb,pkt_len); /* Make room */
eth_copy_and_sum(skb, pkt_ptr, pkt_len, 0);
skb->protocol=eth_type_trans(skb,dev);
netif_rx(skb); /* pass the packet to upper layers */
lp->stats.rx_packets++;
lp->stats.rx_bytes += pkt_len;
} else {
/* This should only happen, if we enable accepting broken packets. */
lp->stats.rx_errors++;
if (status & SONIC_RCR_FAER) lp->stats.rx_frame_errors++;
if (status & SONIC_RCR_CRCR) lp->stats.rx_crc_errors++;
}
rd->in_use = 1;
rd = &lp->rda[(++lp->cur_rx) & SONIC_RDS_MASK];
/* now give back the buffer to the receive buffer area */
if (status & SONIC_RCR_LPKT) {
/*
* this was the last packet out of the current receice buffer
* give the buffer back to the SONIC
*/
lp->cur_rra += sizeof(sonic_rr_t);
if (lp->cur_rra > (lp->rra_laddr + (SONIC_NUM_RRS-1) * sizeof(sonic_rr_t)))
lp->cur_rra = lp->rra_laddr;
SONIC_WRITE(SONIC_RWP, lp->cur_rra & 0xffff);
} else
printk ("%s: rx desc without RCR_LPKT. Shouldn't happen !?\n",dev->name);
}
/*
* If any worth-while packets have been received, dev_rint()
* has done a mark_bh(NET_BH) for us and will work on them
* when we get to the bottom-half routine.
*/
return;
}
/*
* The typical workload of the driver:
* Handle the network interface interrupts.
*/
static void
sonic_interrupt(int irq, void *dev_id, struct pt_regs * regs)
{
struct net_device *dev = (struct net_device *)dev_id;
unsigned int base_addr = dev->base_addr;
struct sonic_local *lp;
int status;
if (dev == NULL) {
printk ("sonic_interrupt: irq %d for unknown device.\n", irq);
return;
}
dev->interrupt = 1;
lp = (struct sonic_local *)dev->priv;
status = SONIC_READ(SONIC_ISR);
SONIC_WRITE(SONIC_ISR,0x7fff); /* clear all bits */
if (sonic_debug > 2)
printk("sonic_interrupt: ISR=%x\n",status);
if (status & SONIC_INT_PKTRX) {
sonic_rx(dev); /* got packet(s) */
}
if (status & SONIC_INT_TXDN) {
int dirty_tx = lp->dirty_tx;
while (dirty_tx < lp->cur_tx) {
int entry = dirty_tx & SONIC_TDS_MASK;
int status = lp->tda[entry].tx_status;
if (sonic_debug > 3)
printk ("sonic_interrupt: status %d, cur_tx %d, dirty_tx %d\n",
status,lp->cur_tx,lp->dirty_tx);
if (status == 0) {
/* It still hasn't been Txed, kick the sonic again */
SONIC_WRITE(SONIC_CMD,SONIC_CR_TXP);
break;
}
/* put back EOL and free descriptor */
lp->tda[entry].tx_frag_count = 0;
lp->tda[entry].tx_status = 0;
if (status & 0x0001)
lp->stats.tx_packets++;
else {
lp->stats.tx_errors++;
if (status & 0x0642) lp->stats.tx_aborted_errors++;
if (status & 0x0180) lp->stats.tx_carrier_errors++;
if (status & 0x0020) lp->stats.tx_window_errors++;
if (status & 0x0004) lp->stats.tx_fifo_errors++;
}
/* We must free the original skb */
if (lp->tx_skb[entry]) {
dev_kfree_skb(lp->tx_skb[entry]);
lp->tx_skb[entry] = 0;
}
/* and the VDMA address */
vdma_free(lp->tx_laddr[entry]);
dirty_tx++;
}
if (lp->tx_full && dev->tbusy
&& dirty_tx + SONIC_NUM_TDS > lp->cur_tx + 2) {
/* The ring is no longer full, clear tbusy. */
lp->tx_full = 0;
dev->tbusy = 0;
mark_bh(NET_BH);
}
lp->dirty_tx = dirty_tx;
}
/*
* check error conditions
*/
if (status & SONIC_INT_RFO) {
printk ("%s: receive fifo underrun\n",dev->name);
lp->stats.rx_fifo_errors++;
}
if (status & SONIC_INT_RDE) {
printk ("%s: receive descriptors exhausted\n",dev->name);
lp->stats.rx_dropped++;
}
if (status & SONIC_INT_RBE) {
printk ("%s: receive buffer exhausted\n",dev->name);
lp->stats.rx_dropped++;
}
if (status & SONIC_INT_RBAE) {
printk ("%s: receive buffer area exhausted\n",dev->name);
lp->stats.rx_dropped++;
}
/* counter overruns; all counters are 16bit wide */
if (status & SONIC_INT_FAE)
lp->stats.rx_frame_errors += 65536;
if (status & SONIC_INT_CRC)
lp->stats.rx_crc_errors += 65536;
if (status & SONIC_INT_MP)
lp->stats.rx_missed_errors += 65536;
/* transmit error */
if (status & SONIC_INT_TXER)
lp->stats.tx_errors++;
/*
* clear interrupt bits and return
*/
SONIC_WRITE(SONIC_ISR,status);
dev->interrupt = 0;
return;
}
static int __devinit mac_nubus_sonic_probe(struct net_device *dev)
{
static int slots;
struct nubus_dev* ndev = NULL;
struct sonic_local* lp = netdev_priv(dev);
unsigned long base_addr, prom_addr;
u16 sonic_dcr;
int id = -1;
int reg_offset, dma_bitmode;
/* Find the first SONIC that hasn't been initialized already */
while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
NUBUS_TYPE_ETHERNET, ndev)) != NULL)
{
/* Have we seen it already? */
if (slots & (1<<ndev->board->slot))
continue;
slots |= 1<<ndev->board->slot;
/* Is it one of ours? */
if ((id = macsonic_ident(ndev)) != -1)
break;
}
if (ndev == NULL)
return -ENODEV;
switch (id) {
case MACSONIC_DUODOCK:
base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
SONIC_DCR_TFT0;
reg_offset = 2;
dma_bitmode = SONIC_BITMODE32;
break;
case MACSONIC_APPLE:
base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE32;
break;
case MACSONIC_APPLE16:
base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
SONIC_DCR_PO1 | SONIC_DCR_BMS;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE16;
break;
case MACSONIC_DAYNALINK:
base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
SONIC_DCR_PO1 | SONIC_DCR_BMS;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE16;
break;
case MACSONIC_DAYNA:
base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
sonic_dcr = SONIC_DCR_BMS |
SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE16;
break;
default:
printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
return -ENODEV;
}
/* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
* and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
dev->base_addr = base_addr;
lp->reg_offset = reg_offset;
lp->dma_bitmode = dma_bitmode;
dev->irq = SLOT2IRQ(ndev->board->slot);
if (!sonic_version_printed) {
printk(KERN_INFO "%s", version);
sonic_version_printed = 1;
}
printk(KERN_INFO "%s: %s in slot %X\n",
dev_name(lp->device), ndev->board->name, ndev->board->slot);
printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
dev_name(lp->device), SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);
#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device),
SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
#endif
/* Software reset, then initialize control registers. */
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
/* This *must* be written back to in order to restore the
* extended programmable output bits, since it may not have been
* initialised since the hardware reset. */
SONIC_WRITE(SONIC_DCR2, 0);
/* Clear *and* disable interrupts to be on the safe side */
SONIC_WRITE(SONIC_IMR, 0);
SONIC_WRITE(SONIC_ISR, 0x7fff);
/* Now look for the MAC address. */
if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
return -ENODEV;
/* Shared init code */
return macsonic_init(dev);
}
static int __devinit mac_onboard_sonic_probe(struct net_device *dev)
{
struct sonic_local* lp = netdev_priv(dev);
int sr;
int commslot = 0;
if (!MACH_IS_MAC)
return -ENODEV;
printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
/* Bogus probing, on the models which may or may not have
Ethernet (BTW, the Ethernet *is* always at the same
address, and nothing else lives there, at least if Apple's
documentation is to be believed) */
if (macintosh_config->ident == MAC_MODEL_Q630 ||
macintosh_config->ident == MAC_MODEL_P588 ||
macintosh_config->ident == MAC_MODEL_P575 ||
macintosh_config->ident == MAC_MODEL_C610) {
unsigned long flags;
int card_present;
local_irq_save(flags);
card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
local_irq_restore(flags);
if (!card_present) {
printk("none.\n");
return -ENODEV;
}
commslot = 1;
}
printk("yes\n");
/* Danger! My arms are flailing wildly! You *must* set lp->reg_offset
* and dev->base_addr before using SONIC_READ() or SONIC_WRITE() */
dev->base_addr = ONBOARD_SONIC_REGISTERS;
if (via_alt_mapping)
dev->irq = IRQ_AUTO_3;
else
dev->irq = IRQ_NUBUS_9;
if (!sonic_version_printed) {
printk(KERN_INFO "%s", version);
sonic_version_printed = 1;
}
printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n",
dev_name(lp->device), dev->base_addr);
/* The PowerBook's SONIC is 16 bit always. */
if (macintosh_config->ident == MAC_MODEL_PB520) {
lp->reg_offset = 0;
lp->dma_bitmode = SONIC_BITMODE16;
sr = SONIC_READ(SONIC_SR);
} else if (commslot) {
/* Some of the comm-slot cards are 16 bit. But some
of them are not. The 32-bit cards use offset 2 and
have known revisions, we try reading the revision
register at offset 2, if we don't get a known revision
we assume 16 bit at offset 0. */
lp->reg_offset = 2;
lp->dma_bitmode = SONIC_BITMODE16;
sr = SONIC_READ(SONIC_SR);
if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
/* 83932 is 0x0004 or 0x0006, 83934 is 0x0100 or 0x0101 */
lp->dma_bitmode = SONIC_BITMODE32;
else {
lp->dma_bitmode = SONIC_BITMODE16;
lp->reg_offset = 0;
sr = SONIC_READ(SONIC_SR);
}
} else {
/* All onboard cards are at offset 2 with 32 bit DMA. */
lp->reg_offset = 2;
lp->dma_bitmode = SONIC_BITMODE32;
sr = SONIC_READ(SONIC_SR);
}
printk(KERN_INFO
"%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
dev_name(lp->device), sr, lp->dma_bitmode?32:16, lp->reg_offset);
#if 0 /* This is sometimes useful to find out how MacOS configured the card. */
printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device),
SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
#endif
/* Software reset, then initialize control registers. */
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
(lp->dma_bitmode ? SONIC_DCR_DW : 0));
/* This *must* be written back to in order to restore the
* extended programmable output bits, as it may not have been
* initialised since the hardware reset. */
SONIC_WRITE(SONIC_DCR2, 0);
/* Clear *and* disable interrupts to be on the safe side */
SONIC_WRITE(SONIC_IMR, 0);
SONIC_WRITE(SONIC_ISR, 0x7fff);
/* Now look for the MAC address. */
mac_onboard_sonic_ethernet_addr(dev);
/* Shared init code */
return macsonic_init(dev);
}
static void __devinit mac_onboard_sonic_ethernet_addr(struct net_device *dev)
{
struct sonic_local *lp = netdev_priv(dev);
const int prom_addr = ONBOARD_SONIC_PROM_BASE;
unsigned short val;
/*
* On NuBus boards we can sometimes look in the ROM resources.
* No such luck for comm-slot/onboard.
* On the PowerBook 520, the PROM base address is a mystery.
*/
if (hwreg_present((void *)prom_addr)) {
int i;
for (i = 0; i < 6; i++)
dev->dev_addr[i] = SONIC_READ_PROM(i);
if (!INVALID_MAC(dev->dev_addr))
return;
/*
* Most of the time, the address is bit-reversed. The NetBSD
* source has a rather long and detailed historical account of
* why this is so.
*/
bit_reverse_addr(dev->dev_addr);
if (!INVALID_MAC(dev->dev_addr))
return;
/*
* If we still have what seems to be a bogus address, we'll
* look in the CAM. The top entry should be ours.
*/
printk(KERN_WARNING "macsonic: MAC address in PROM seems "
"to be invalid, trying CAM\n");
} else {
printk(KERN_WARNING "macsonic: cannot read MAC address from "
"PROM, trying CAM\n");
}
/* This only works if MacOS has already initialized the card. */
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
SONIC_WRITE(SONIC_CEP, 15);
val = SONIC_READ(SONIC_CAP2);
dev->dev_addr[5] = val >> 8;
dev->dev_addr[4] = val & 0xff;
val = SONIC_READ(SONIC_CAP1);
dev->dev_addr[3] = val >> 8;
dev->dev_addr[2] = val & 0xff;
val = SONIC_READ(SONIC_CAP0);
dev->dev_addr[1] = val >> 8;
dev->dev_addr[0] = val & 0xff;
if (!INVALID_MAC(dev->dev_addr))
return;
/* Still nonsense ... messed up someplace! */
printk(KERN_WARNING "macsonic: MAC address in CAM entry 15 "
"seems invalid, will use a random MAC\n");
eth_hw_addr_random(dev);
}
static int __init sonic_probe1(struct net_device *dev)
{
static unsigned version_printed = 0;
unsigned int silicon_revision;
struct sonic_local *lp = netdev_priv(dev);
unsigned int base_addr = dev->base_addr;
int i;
int err = 0;
if (!request_mem_region(base_addr, 0x100, xtsonic_string))
return -EBUSY;
silicon_revision = SONIC_READ(SONIC_SR);
if (sonic_debug > 1)
printk("SONIC Silicon Revision = 0x%04x\n",silicon_revision);
i = 0;
while ((known_revisions[i] != 0xffff) &&
(known_revisions[i] != silicon_revision))
i++;
if (known_revisions[i] == 0xffff) {
printk("SONIC ethernet controller not found (0x%4x)\n",
silicon_revision);
return -ENODEV;
}
if (sonic_debug && version_printed++ == 0)
printk(version);
SONIC_WRITE(SONIC_CMD,SONIC_CR_RST);
SONIC_WRITE(SONIC_DCR,
SONIC_DCR_WC0|SONIC_DCR_DW|SONIC_DCR_LBR|SONIC_DCR_SBUS);
SONIC_WRITE(SONIC_CEP,0);
SONIC_WRITE(SONIC_IMR,0);
SONIC_WRITE(SONIC_CMD,SONIC_CR_RST);
SONIC_WRITE(SONIC_CEP,0);
for (i=0; i<3; i++) {
unsigned int val = SONIC_READ(SONIC_CAP0-i);
dev->dev_addr[i*2] = val;
dev->dev_addr[i*2+1] = val >> 8;
}
lp->dma_bitmode = SONIC_BITMODE32;
lp->descriptors =
dma_alloc_coherent(lp->device,
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
&lp->descriptors_laddr, GFP_KERNEL);
if (lp->descriptors == NULL) {
printk(KERN_ERR "%s: couldn't alloc DMA memory for "
" descriptors.\n", dev_name(lp->device));
goto out;
}
lp->cda = lp->descriptors;
lp->tda = lp->cda + (SIZEOF_SONIC_CDA
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->cda_laddr = lp->descriptors_laddr;
lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
dev->netdev_ops = &xtsonic_netdev_ops;
dev->watchdog_timeo = TX_TIMEOUT;
SONIC_WRITE(SONIC_CRCT,0xffff);
SONIC_WRITE(SONIC_FAET,0xffff);
SONIC_WRITE(SONIC_MPT,0xffff);
return 0;
out:
release_region(dev->base_addr, SONIC_MEM_SIZE);
return err;
}
static int __init sonic_probe1(struct net_device *dev)
{
static unsigned version_printed = 0;
unsigned int silicon_revision;
struct sonic_local *lp = netdev_priv(dev);
unsigned int base_addr = dev->base_addr;
int i;
int err = 0;
if (!request_mem_region(base_addr, 0x100, xtsonic_string))
return -EBUSY;
/*
* get the Silicon Revision ID. If this is one of the known
* one assume that we found a SONIC ethernet controller at
* the expected location.
*/
silicon_revision = SONIC_READ(SONIC_SR);
if (sonic_debug > 1)
printk("SONIC Silicon Revision = 0x%04x\n",silicon_revision);
i = 0;
while ((known_revisions[i] != 0xffff) &&
(known_revisions[i] != silicon_revision))
i++;
if (known_revisions[i] == 0xffff) {
printk("SONIC ethernet controller not found (0x%4x)\n",
silicon_revision);
return -ENODEV;
}
if (sonic_debug && version_printed++ == 0)
printk(version);
/*
* Put the sonic into software reset, then retrieve ethernet address.
* Note: we are assuming that the boot-loader has initialized the cam.
*/
SONIC_WRITE(SONIC_CMD,SONIC_CR_RST);
SONIC_WRITE(SONIC_DCR,
SONIC_DCR_WC0|SONIC_DCR_DW|SONIC_DCR_LBR|SONIC_DCR_SBUS);
SONIC_WRITE(SONIC_CEP,0);
SONIC_WRITE(SONIC_IMR,0);
SONIC_WRITE(SONIC_CMD,SONIC_CR_RST);
SONIC_WRITE(SONIC_CEP,0);
for (i=0; i<3; i++) {
unsigned int val = SONIC_READ(SONIC_CAP0-i);
dev->dev_addr[i*2] = val;
dev->dev_addr[i*2+1] = val >> 8;
}
/* Initialize the device structure. */
lp->dma_bitmode = SONIC_BITMODE32;
/*
* Allocate local private descriptor areas in uncached space.
* The entire structure must be located within the same 64kb segment.
* A simple way to ensure this is to allocate twice the
* size of the structure -- given that the structure is
* much less than 64 kB, at least one of the halves of
* the allocated area will be contained entirely in 64 kB.
* We also allocate extra space for a pointer to allow freeing
* this structure later on (in xtsonic_cleanup_module()).
*/
lp->descriptors =
dma_alloc_coherent(lp->device,
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
&lp->descriptors_laddr, GFP_KERNEL);
if (lp->descriptors == NULL) {
printk(KERN_ERR "%s: couldn't alloc DMA memory for "
" descriptors.\n", lp->device->bus_id);
goto out;
}
lp->cda = lp->descriptors;
lp->tda = lp->cda + (SIZEOF_SONIC_CDA
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
/* get the virtual dma address */
lp->cda_laddr = lp->descriptors_laddr;
lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
dev->open = xtsonic_open;
dev->stop = xtsonic_close;
dev->hard_start_xmit = sonic_send_packet;
dev->get_stats = sonic_get_stats;
dev->set_multicast_list = &sonic_multicast_list;
dev->tx_timeout = sonic_tx_timeout;
dev->watchdog_timeo = TX_TIMEOUT;
/*
* clear tally counter
*/
SONIC_WRITE(SONIC_CRCT,0xffff);
SONIC_WRITE(SONIC_FAET,0xffff);
SONIC_WRITE(SONIC_MPT,0xffff);
return 0;
out:
release_region(dev->base_addr, SONIC_MEM_SIZE);
return err;
}
static int __init sonic_probe1(struct net_device *dev)
{
static unsigned version_printed;
unsigned int silicon_revision;
unsigned int val;
struct sonic_local *lp = netdev_priv(dev);
int err = -ENODEV;
int i;
if (!request_mem_region(dev->base_addr, SONIC_MEM_SIZE, jazz_sonic_string))
return -EBUSY;
/*
* get the Silicon Revision ID. If this is one of the known
* one assume that we found a SONIC ethernet controller at
* the expected location.
*/
silicon_revision = SONIC_READ(SONIC_SR);
if (sonic_debug > 1)
printk("SONIC Silicon Revision = 0x%04x\n",silicon_revision);
i = 0;
while (known_revisions[i] != 0xffff
&& known_revisions[i] != silicon_revision)
i++;
if (known_revisions[i] == 0xffff) {
printk("SONIC ethernet controller not found (0x%4x)\n",
silicon_revision);
goto out;
}
if (sonic_debug && version_printed++ == 0)
printk(version);
printk(KERN_INFO "%s: Sonic ethernet found at 0x%08lx, ",
dev_name(lp->device), dev->base_addr);
/*
* Put the sonic into software reset, then
* retrieve and print the ethernet address.
*/
SONIC_WRITE(SONIC_CMD,SONIC_CR_RST);
SONIC_WRITE(SONIC_CEP,0);
for (i=0; i<3; i++) {
val = SONIC_READ(SONIC_CAP0-i);
dev->dev_addr[i*2] = val;
dev->dev_addr[i*2+1] = val >> 8;
}
err = -ENOMEM;
/* Initialize the device structure. */
lp->dma_bitmode = SONIC_BITMODE32;
/* Allocate the entire chunk of memory for the descriptors.
Note that this cannot cross a 64K boundary. */
if ((lp->descriptors = dma_alloc_coherent(lp->device,
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
&lp->descriptors_laddr, GFP_KERNEL)) == NULL) {
printk(KERN_ERR "%s: couldn't alloc DMA memory for descriptors.\n",
dev_name(lp->device));
goto out;
}
/* Now set up the pointers to point to the appropriate places */
lp->cda = lp->descriptors;
lp->tda = lp->cda + (SIZEOF_SONIC_CDA
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rda = lp->tda + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rra = lp->rda + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->cda_laddr = lp->descriptors_laddr;
lp->tda_laddr = lp->cda_laddr + (SIZEOF_SONIC_CDA
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rda_laddr = lp->tda_laddr + (SIZEOF_SONIC_TD * SONIC_NUM_TDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
lp->rra_laddr = lp->rda_laddr + (SIZEOF_SONIC_RD * SONIC_NUM_RDS
* SONIC_BUS_SCALE(lp->dma_bitmode));
dev->netdev_ops = &sonic_netdev_ops;
dev->watchdog_timeo = TX_TIMEOUT;
/*
* clear tally counter
*/
SONIC_WRITE(SONIC_CRCT,0xffff);
SONIC_WRITE(SONIC_FAET,0xffff);
SONIC_WRITE(SONIC_MPT,0xffff);
return 0;
out:
release_region(dev->base_addr, SONIC_MEM_SIZE);
return err;
}
static int __devinit mac_nubus_sonic_probe(struct net_device *dev)
{
static int slots;
struct nubus_dev* ndev = NULL;
struct sonic_local* lp = netdev_priv(dev);
unsigned long base_addr, prom_addr;
u16 sonic_dcr;
int id = -1;
int reg_offset, dma_bitmode;
while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK,
NUBUS_TYPE_ETHERNET, ndev)) != NULL)
{
if (slots & (1<<ndev->board->slot))
continue;
slots |= 1<<ndev->board->slot;
if ((id = macsonic_ident(ndev)) != -1)
break;
}
if (ndev == NULL)
return -ENODEV;
switch (id) {
case MACSONIC_DUODOCK:
base_addr = ndev->board->slot_addr + DUODOCK_SONIC_REGISTERS;
prom_addr = ndev->board->slot_addr + DUODOCK_SONIC_PROM_BASE;
sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT0 | SONIC_DCR_RFT1 |
SONIC_DCR_TFT0;
reg_offset = 2;
dma_bitmode = SONIC_BITMODE32;
break;
case MACSONIC_APPLE:
base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
sonic_dcr = SONIC_DCR_BMS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE32;
break;
case MACSONIC_APPLE16:
base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
prom_addr = ndev->board->slot_addr + APPLE_SONIC_PROM_BASE;
sonic_dcr = SONIC_DCR_EXBUS | SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
SONIC_DCR_PO1 | SONIC_DCR_BMS;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE16;
break;
case MACSONIC_DAYNALINK:
base_addr = ndev->board->slot_addr + APPLE_SONIC_REGISTERS;
prom_addr = ndev->board->slot_addr + DAYNALINK_PROM_BASE;
sonic_dcr = SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
SONIC_DCR_PO1 | SONIC_DCR_BMS;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE16;
break;
case MACSONIC_DAYNA:
base_addr = ndev->board->slot_addr + DAYNA_SONIC_REGISTERS;
prom_addr = ndev->board->slot_addr + DAYNA_SONIC_MAC_ADDR;
sonic_dcr = SONIC_DCR_BMS |
SONIC_DCR_RFT1 | SONIC_DCR_TFT0 | SONIC_DCR_PO1;
reg_offset = 0;
dma_bitmode = SONIC_BITMODE16;
break;
default:
printk(KERN_ERR "macsonic: WTF, id is %d\n", id);
return -ENODEV;
}
dev->base_addr = base_addr;
lp->reg_offset = reg_offset;
lp->dma_bitmode = dma_bitmode;
dev->irq = SLOT2IRQ(ndev->board->slot);
if (!sonic_version_printed) {
printk(KERN_INFO "%s", version);
sonic_version_printed = 1;
}
printk(KERN_INFO "%s: %s in slot %X\n",
dev_name(lp->device), ndev->board->name, ndev->board->slot);
printk(KERN_INFO "%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
dev_name(lp->device), SONIC_READ(SONIC_SR), dma_bitmode?32:16, reg_offset);
#if 0
printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device),
SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
#endif
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
SONIC_WRITE(SONIC_DCR, sonic_dcr | (dma_bitmode ? SONIC_DCR_DW : 0));
SONIC_WRITE(SONIC_DCR2, 0);
SONIC_WRITE(SONIC_IMR, 0);
SONIC_WRITE(SONIC_ISR, 0x7fff);
if (mac_nubus_sonic_ethernet_addr(dev, prom_addr, id) != 0)
return -ENODEV;
return macsonic_init(dev);
}
static int __devinit mac_onboard_sonic_probe(struct net_device *dev)
{
static int once_is_more_than_enough;
struct sonic_local* lp = netdev_priv(dev);
int sr;
int commslot = 0;
if (once_is_more_than_enough)
return -ENODEV;
once_is_more_than_enough = 1;
if (!MACH_IS_MAC)
return -ENODEV;
if (macintosh_config->ether_type != MAC_ETHER_SONIC)
return -ENODEV;
printk(KERN_INFO "Checking for internal Macintosh ethernet (SONIC).. ");
if (macintosh_config->ident == MAC_MODEL_Q630 ||
macintosh_config->ident == MAC_MODEL_P588 ||
macintosh_config->ident == MAC_MODEL_P575 ||
macintosh_config->ident == MAC_MODEL_C610) {
unsigned long flags;
int card_present;
local_irq_save(flags);
card_present = hwreg_present((void*)ONBOARD_SONIC_REGISTERS);
local_irq_restore(flags);
if (!card_present) {
printk("none.\n");
return -ENODEV;
}
commslot = 1;
}
printk("yes\n");
dev->base_addr = ONBOARD_SONIC_REGISTERS;
if (via_alt_mapping)
dev->irq = IRQ_AUTO_3;
else
dev->irq = IRQ_NUBUS_9;
if (!sonic_version_printed) {
printk(KERN_INFO "%s", version);
sonic_version_printed = 1;
}
printk(KERN_INFO "%s: onboard / comm-slot SONIC at 0x%08lx\n",
dev_name(lp->device), dev->base_addr);
if (macintosh_config->ident == MAC_MODEL_PB520) {
lp->reg_offset = 0;
lp->dma_bitmode = SONIC_BITMODE16;
sr = SONIC_READ(SONIC_SR);
} else if (commslot) {
lp->reg_offset = 2;
lp->dma_bitmode = SONIC_BITMODE16;
sr = SONIC_READ(SONIC_SR);
if (sr == 0x0004 || sr == 0x0006 || sr == 0x0100 || sr == 0x0101)
lp->dma_bitmode = SONIC_BITMODE32;
else {
lp->dma_bitmode = SONIC_BITMODE16;
lp->reg_offset = 0;
sr = SONIC_READ(SONIC_SR);
}
} else {
lp->reg_offset = 2;
lp->dma_bitmode = SONIC_BITMODE32;
sr = SONIC_READ(SONIC_SR);
}
printk(KERN_INFO
"%s: revision 0x%04x, using %d bit DMA and register offset %d\n",
dev_name(lp->device), sr, lp->dma_bitmode?32:16, lp->reg_offset);
#if 0
printk(KERN_INFO "%s: DCR: 0x%04x, DCR2: 0x%04x\n", dev_name(lp->device),
SONIC_READ(SONIC_DCR) & 0xffff, SONIC_READ(SONIC_DCR2) & 0xffff);
#endif
SONIC_WRITE(SONIC_CMD, SONIC_CR_RST);
SONIC_WRITE(SONIC_DCR, SONIC_DCR_EXBUS | SONIC_DCR_BMS |
SONIC_DCR_RFT1 | SONIC_DCR_TFT0 |
(lp->dma_bitmode ? SONIC_DCR_DW : 0));
SONIC_WRITE(SONIC_DCR2, 0);
SONIC_WRITE(SONIC_IMR, 0);
SONIC_WRITE(SONIC_ISR, 0x7fff);
mac_onboard_sonic_ethernet_addr(dev);
return macsonic_init(dev);
}
/*
* Initialize the SONIC ethernet controller.
*/
static int sonic_init(struct net_device *dev)
{
unsigned int base_addr = dev->base_addr;
unsigned int cmd;
struct sonic_local *lp = (struct sonic_local *)dev->priv;
unsigned int rra_start;
unsigned int rra_end;
int i;
/*
* put the Sonic into software-reset mode and
* disable all interrupts
*/
SONIC_WRITE(SONIC_ISR,0x7fff);
SONIC_WRITE(SONIC_IMR,0);
SONIC_WRITE(SONIC_CMD,SONIC_CR_RST);
/*
* clear software reset flag, disable receiver, clear and
* enable interrupts, then completely initialize the SONIC
*/
SONIC_WRITE(SONIC_CMD,0);
SONIC_WRITE(SONIC_CMD,SONIC_CR_RXDIS);
/*
* initialize the receive resource area
*/
if (sonic_debug > 2)
printk ("sonic_init: initialize receive resource area\n");
rra_start = lp->rra_laddr & 0xffff;
rra_end = (rra_start + (SONIC_NUM_RRS * sizeof(sonic_rr_t))) & 0xffff;
for (i = 0; i < SONIC_NUM_RRS; i++) {
lp->rra[i].rx_bufadr_l = (lp->rba_laddr + i * SONIC_RBSIZE) & 0xffff;
lp->rra[i].rx_bufadr_h = (lp->rba_laddr + i * SONIC_RBSIZE) >> 16;
lp->rra[i].rx_bufsize_l = SONIC_RBSIZE >> 1;
lp->rra[i].rx_bufsize_h = 0;
}
/* initialize all RRA registers */
SONIC_WRITE(SONIC_RSA,rra_start);
SONIC_WRITE(SONIC_REA,rra_end);
SONIC_WRITE(SONIC_RRP,rra_start);
SONIC_WRITE(SONIC_RWP,rra_end);
SONIC_WRITE(SONIC_URRA,lp->rra_laddr >> 16);
SONIC_WRITE(SONIC_EOBC,(SONIC_RBSIZE-2) >> 1);
lp->cur_rra = lp->rra_laddr + (SONIC_NUM_RRS-1) * sizeof(sonic_rr_t);
/* load the resource pointers */
if (sonic_debug > 3)
printk("sonic_init: issueing RRRA command\n");
SONIC_WRITE(SONIC_CMD,SONIC_CR_RRRA);
i = 0;
while (i++ < 100) {
if (SONIC_READ(SONIC_CMD) & SONIC_CR_RRRA)
break;
}
if (sonic_debug > 2)
printk("sonic_init: status=%x\n",SONIC_READ(SONIC_CMD));
/*
* Initialize the receive descriptors so that they
* become a circular linked list, ie. let the last
* descriptor point to the first again.
*/
if (sonic_debug > 2)
printk ("sonic_init: initialize receive descriptors\n");
for (i=0; i<SONIC_NUM_RDS; i++) {
lp->rda[i].rx_status = 0;
lp->rda[i].rx_pktlen = 0;
lp->rda[i].rx_pktptr_l = 0;
lp->rda[i].rx_pktptr_h = 0;
lp->rda[i].rx_seqno = 0;
lp->rda[i].in_use = 1;
lp->rda[i].link = lp->rda_laddr + (i+1) * sizeof (sonic_rd_t);
}
/* fix last descriptor */
lp->rda[SONIC_NUM_RDS-1].link = lp->rda_laddr;
lp->cur_rx = 0;
SONIC_WRITE(SONIC_URDA,lp->rda_laddr >> 16);
SONIC_WRITE(SONIC_CRDA,lp->rda_laddr & 0xffff);
/*
* initialize transmit descriptors
*/
if (sonic_debug > 2)
printk ("sonic_init: initialize transmit descriptors\n");
for (i = 0; i < SONIC_NUM_TDS; i++) {
lp->tda[i].tx_status = 0;
lp->tda[i].tx_config = 0;
lp->tda[i].tx_pktsize = 0;
lp->tda[i].tx_frag_count = 0;
lp->tda[i].link = (lp->tda_laddr + (i+1) * sizeof (sonic_td_t)) | SONIC_END_OF_LINKS;
}
lp->tda[SONIC_NUM_TDS-1].link = (lp->tda_laddr & 0xffff) | SONIC_END_OF_LINKS;
SONIC_WRITE(SONIC_UTDA,lp->tda_laddr >> 16);
SONIC_WRITE(SONIC_CTDA,lp->tda_laddr & 0xffff);
lp->cur_tx = lp->dirty_tx = 0;
/*
* put our own address to CAM desc[0]
*/
lp->cda.cam_desc[0].cam_cap0 = dev->dev_addr[1] << 8 | dev->dev_addr[0];
lp->cda.cam_desc[0].cam_cap1 = dev->dev_addr[3] << 8 | dev->dev_addr[2];
lp->cda.cam_desc[0].cam_cap2 = dev->dev_addr[5] << 8 | dev->dev_addr[4];
lp->cda.cam_enable = 1;
for (i=0; i < 16; i++)
lp->cda.cam_desc[i].cam_entry_pointer = i;
/*
* initialize CAM registers
*/
SONIC_WRITE(SONIC_CDP, lp->cda_laddr & 0xffff);
SONIC_WRITE(SONIC_CDC,16);
/*
* load the CAM
*/
SONIC_WRITE(SONIC_CMD,SONIC_CR_LCAM);
i = 0;
while (i++ < 100) {
if (SONIC_READ(SONIC_ISR) & SONIC_INT_LCD)
break;
}
if (sonic_debug > 2) {
printk("sonic_init: CMD=%x, ISR=%x\n",
SONIC_READ(SONIC_CMD),
SONIC_READ(SONIC_ISR));
}
/*
* enable receiver, disable loopback
* and enable all interrupts
*/
SONIC_WRITE(SONIC_CMD,SONIC_CR_RXEN | SONIC_CR_STP);
SONIC_WRITE(SONIC_RCR,SONIC_RCR_DEFAULT);
SONIC_WRITE(SONIC_TCR,SONIC_TCR_DEFAULT);
SONIC_WRITE(SONIC_ISR,0x7fff);
SONIC_WRITE(SONIC_IMR,SONIC_IMR_DEFAULT);
cmd = SONIC_READ(SONIC_CMD);
if ((cmd & SONIC_CR_RXEN) == 0 ||
(cmd & SONIC_CR_STP) == 0)
printk("sonic_init: failed, status=%x\n",cmd);
if (sonic_debug > 2)
printk("sonic_init: new status=%x\n",SONIC_READ(SONIC_CMD));
return(0);
}
static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
{
struct sonic_local *lp = netdev_priv(dev);
dma_addr_t laddr;
int length;
int entry = lp->next_tx;
if (sonic_debug > 2)
printk("sonic_send_packet: skb=%p, dev=%p\n", skb, dev);
length = skb->len;
if (length < ETH_ZLEN) {
if (skb_padto(skb, ETH_ZLEN))
return NETDEV_TX_OK;
length = ETH_ZLEN;
}
/*
* Map the packet data into the logical DMA address space
*/
laddr = dma_map_single(lp->device, skb->data, length, DMA_TO_DEVICE);
if (!laddr) {
printk(KERN_ERR "%s: failed to map tx DMA buffer.\n", dev->name);
dev_kfree_skb(skb);
return NETDEV_TX_BUSY;
}
sonic_tda_put(dev, entry, SONIC_TD_STATUS, 0); /* clear status */
sonic_tda_put(dev, entry, SONIC_TD_FRAG_COUNT, 1); /* single fragment */
sonic_tda_put(dev, entry, SONIC_TD_PKTSIZE, length); /* length of packet */
sonic_tda_put(dev, entry, SONIC_TD_FRAG_PTR_L, laddr & 0xffff);
sonic_tda_put(dev, entry, SONIC_TD_FRAG_PTR_H, laddr >> 16);
sonic_tda_put(dev, entry, SONIC_TD_FRAG_SIZE, length);
sonic_tda_put(dev, entry, SONIC_TD_LINK,
sonic_tda_get(dev, entry, SONIC_TD_LINK) | SONIC_EOL);
/*
* Must set tx_skb[entry] only after clearing status, and
* before clearing EOL and before stopping queue
*/
wmb();
lp->tx_len[entry] = length;
lp->tx_laddr[entry] = laddr;
lp->tx_skb[entry] = skb;
wmb();
sonic_tda_put(dev, lp->eol_tx, SONIC_TD_LINK,
sonic_tda_get(dev, lp->eol_tx, SONIC_TD_LINK) & ~SONIC_EOL);
lp->eol_tx = entry;
lp->next_tx = (entry + 1) & SONIC_TDS_MASK;
if (lp->tx_skb[lp->next_tx] != NULL) {
/* The ring is full, the ISR has yet to process the next TD. */
if (sonic_debug > 3)
printk("%s: stopping queue\n", dev->name);
netif_stop_queue(dev);
/* after this packet, wait for ISR to free up some TDAs */
} else netif_start_queue(dev);
if (sonic_debug > 2)
printk("sonic_send_packet: issuing Tx command\n");
SONIC_WRITE(SONIC_CMD, SONIC_CR_TXP);
return NETDEV_TX_OK;
}
/*
* transmit packet
*/
static int sonic_send_packet(struct sk_buff *skb, struct net_device *dev)
{
struct sonic_local *lp = (struct sonic_local *)dev->priv;
unsigned int base_addr = dev->base_addr;
unsigned int laddr;
int entry,length;
if (sonic_debug > 2)
printk("sonic_send_packet: skb=%p, dev=%p\n",skb,dev);
if (dev->tbusy) {
int tickssofar = jiffies - dev->trans_start;
/* If we get here, some higher level has decided we are broken.
There should really be a "kick me" function call instead. */
if (sonic_debug > 1)
printk("sonic_send_packet: called with dev->tbusy = 1 !\n");
if (tickssofar < 5)
return 1;
printk("%s: transmit timed out.\n", dev->name);
/* Try to restart the adaptor. */
sonic_init(dev);
dev->tbusy=0;
dev->trans_start = jiffies;
}
/*
* Block a timer-based transmit from overlapping. This could better be
* done with atomic_swap(1, dev->tbusy), but set_bit() works as well.
*/
if (test_and_set_bit(0, (void*)&dev->tbusy) != 0) {
printk("%s: Transmitter access conflict.\n", dev->name);
return 1;
}
/*
* Map the packet data into the logical DMA address space
*/
if ((laddr = vdma_alloc(PHYSADDR(skb->data),skb->len)) == ~0UL) {
printk("%s: no VDMA entry for transmit available.\n",dev->name);
dev_kfree_skb(skb);
dev->tbusy = 0;
return 1;
}
entry = lp->cur_tx & SONIC_TDS_MASK;
lp->tx_laddr[entry] = laddr;
lp->tx_skb[entry] = skb;
length = (skb->len < ETH_ZLEN) ? ETH_ZLEN : skb->len;
flush_cache_all();
/*
* Setup the transmit descriptor and issue the transmit command.
*/
lp->tda[entry].tx_status = 0; /* clear status */
lp->tda[entry].tx_frag_count = 1; /* single fragment */
lp->tda[entry].tx_pktsize = length; /* length of packet */
lp->tda[entry].tx_frag_ptr_l = laddr & 0xffff;
lp->tda[entry].tx_frag_ptr_h = laddr >> 16;
lp->tda[entry].tx_frag_size = length;
lp->cur_tx++;
lp->stats.tx_bytes += length;
if (sonic_debug > 2)
printk("sonic_send_packet: issueing Tx command\n");
SONIC_WRITE(SONIC_CMD,SONIC_CR_TXP);
dev->trans_start = jiffies;
if (lp->cur_tx < lp->dirty_tx + SONIC_NUM_TDS)
dev->tbusy = 0;
else
lp->tx_full = 1;
return 0;
}
/*
* The typical workload of the driver:
* Handle the network interface interrupts.
*/
static irqreturn_t sonic_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct sonic_local *lp = netdev_priv(dev);
int status;
if (!(status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT))
return IRQ_NONE;
do {
if (status & SONIC_INT_PKTRX) {
if (sonic_debug > 2)
printk("%s: packet rx\n", dev->name);
sonic_rx(dev); /* got packet(s) */
SONIC_WRITE(SONIC_ISR, SONIC_INT_PKTRX); /* clear the interrupt */
}
if (status & SONIC_INT_TXDN) {
int entry = lp->cur_tx;
int td_status;
int freed_some = 0;
/* At this point, cur_tx is the index of a TD that is one of:
* unallocated/freed (status set & tx_skb[entry] clear)
* allocated and sent (status set & tx_skb[entry] set )
* allocated and not yet sent (status clear & tx_skb[entry] set )
* still being allocated by sonic_send_packet (status clear & tx_skb[entry] clear)
*/
if (sonic_debug > 2)
printk("%s: tx done\n", dev->name);
while (lp->tx_skb[entry] != NULL) {
if ((td_status = sonic_tda_get(dev, entry, SONIC_TD_STATUS)) == 0)
break;
if (td_status & 0x0001) {
lp->stats.tx_packets++;
lp->stats.tx_bytes += sonic_tda_get(dev, entry, SONIC_TD_PKTSIZE);
} else {
lp->stats.tx_errors++;
if (td_status & 0x0642)
lp->stats.tx_aborted_errors++;
if (td_status & 0x0180)
lp->stats.tx_carrier_errors++;
if (td_status & 0x0020)
lp->stats.tx_window_errors++;
if (td_status & 0x0004)
lp->stats.tx_fifo_errors++;
}
/* We must free the original skb */
dev_kfree_skb_irq(lp->tx_skb[entry]);
lp->tx_skb[entry] = NULL;
/* and unmap DMA buffer */
dma_unmap_single(lp->device, lp->tx_laddr[entry], lp->tx_len[entry], DMA_TO_DEVICE);
lp->tx_laddr[entry] = (dma_addr_t)0;
freed_some = 1;
if (sonic_tda_get(dev, entry, SONIC_TD_LINK) & SONIC_EOL) {
entry = (entry + 1) & SONIC_TDS_MASK;
break;
}
entry = (entry + 1) & SONIC_TDS_MASK;
}
if (freed_some || lp->tx_skb[entry] == NULL)
netif_wake_queue(dev); /* The ring is no longer full */
lp->cur_tx = entry;
SONIC_WRITE(SONIC_ISR, SONIC_INT_TXDN); /* clear the interrupt */
}
/*
* check error conditions
*/
if (status & SONIC_INT_RFO) {
if (sonic_debug > 1)
printk("%s: rx fifo overrun\n", dev->name);
lp->stats.rx_fifo_errors++;
SONIC_WRITE(SONIC_ISR, SONIC_INT_RFO); /* clear the interrupt */
}
if (status & SONIC_INT_RDE) {
if (sonic_debug > 1)
printk("%s: rx descriptors exhausted\n", dev->name);
lp->stats.rx_dropped++;
SONIC_WRITE(SONIC_ISR, SONIC_INT_RDE); /* clear the interrupt */
}
if (status & SONIC_INT_RBAE) {
if (sonic_debug > 1)
printk("%s: rx buffer area exceeded\n", dev->name);
lp->stats.rx_dropped++;
SONIC_WRITE(SONIC_ISR, SONIC_INT_RBAE); /* clear the interrupt */
}
/* counter overruns; all counters are 16bit wide */
if (status & SONIC_INT_FAE) {
lp->stats.rx_frame_errors += 65536;
SONIC_WRITE(SONIC_ISR, SONIC_INT_FAE); /* clear the interrupt */
}
if (status & SONIC_INT_CRC) {
lp->stats.rx_crc_errors += 65536;
SONIC_WRITE(SONIC_ISR, SONIC_INT_CRC); /* clear the interrupt */
}
if (status & SONIC_INT_MP) {
lp->stats.rx_missed_errors += 65536;
SONIC_WRITE(SONIC_ISR, SONIC_INT_MP); /* clear the interrupt */
}
/* transmit error */
if (status & SONIC_INT_TXER) {
if ((SONIC_READ(SONIC_TCR) & SONIC_TCR_FU) && (sonic_debug > 2))
printk(KERN_ERR "%s: tx fifo underrun\n", dev->name);
SONIC_WRITE(SONIC_ISR, SONIC_INT_TXER); /* clear the interrupt */
}
/* bus retry */
if (status & SONIC_INT_BR) {
printk(KERN_ERR "%s: Bus retry occurred! Device interrupt disabled.\n",
dev->name);
/* ... to help debug DMA problems causing endless interrupts. */
/* Bounce the eth interface to turn on the interrupt again. */
SONIC_WRITE(SONIC_IMR, 0);
SONIC_WRITE(SONIC_ISR, SONIC_INT_BR); /* clear the interrupt */
}
/* load CAM done */
if (status & SONIC_INT_LCD)
SONIC_WRITE(SONIC_ISR, SONIC_INT_LCD); /* clear the interrupt */
} while((status = SONIC_READ(SONIC_ISR) & SONIC_IMR_DEFAULT));
return IRQ_HANDLED;
}