/* Open/initialize the board. This is called (in the current kernel)
sometime after booting when the 'ifconfig' program is run.
This routine should set everything up anew at each open, even
registers that "should" only need to be set once at boot, so that
there is non-reboot way to recover if something goes wrong.
*/
static int
net_open(struct device *dev)
{
struct net_local *lp = (struct net_local *)dev->priv;
int result = 0;
// int i;
write_irq(dev, lp->chip_type, 0);
irq2dev_map[/* FIXME */ 0] = dev;
writereg(dev, PP_BusCTL, 0); /* ints off! */
#ifdef CONFIG_UCSIMM
*(volatile unsigned short *)0xfffff302 |= 0x0080; /* +ve pol irq */
if (request_irq(IRQ_MACHSPEC | IRQ5_IRQ_NUM,
cs8900_interrupt,
IRQ_FLG_STD,
"CrystalLAN_cs8900a", NULL))
panic("Unable to attach cs8900 intr\n");
#endif
#ifdef CONFIG_ARCH_ATMEL
/* We use IRQ_IRQ1 for the network interrupt */
if (request_irq(IRQ_MACHSPEC | IRQ_IRQ1,
cs8900_interrupt,
IRQ_FLG_STD,
"CrystalLAN_cs8900a", NULL))
panic("Unable to attach cs8900 intr\n");
#endif
#ifdef CONFIG_ALMA_ANS
/* We use positive polarity IRQ3 as a network interrupt */
ICR |= ICR_POL3;
if (request_irq(IRQ_MACHSPEC | IRQ3_IRQ_NUM,
cs8900_interrupt,
IRQ_FLG_STD,
"CrystalLAN_cs8900a", NULL))
panic("Unable to attach cs8900 intr\n");
#endif
#ifdef CONFIG_MWI
/* We use vector position 28 as network interrupt */
if (request_irq(IRQ_MACHSPEC| 28,
cs8900_interrupt,
IRQ_FLG_STD,
"cs8900a", NULL))
panic("Unable to attach cs8900 intr\n");
/* setup porte */
*(volatile unsigned char *)0xfffa15 &= 0xfb;
*(volatile unsigned char *)0xfffa17 |= 0x04;
/* setup portf */
*(volatile unsigned char *)0xfffa1d &= 0x7f;
*(volatile unsigned char *)0xfffa1f |= 0x10;
#endif
/* set the Ethernet address */
set_mac_address(dev, dev->dev_addr);
/* Set the LineCTL */
lp->linectl = 0;
/* check to make sure that they have the "right" hardware available */
switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
case A_CNF_MEDIA_10B_T:
result = lp->adapter_cnf & A_CNF_10B_T;
break;
case A_CNF_MEDIA_AUI:
result = lp->adapter_cnf & A_CNF_AUI;
break;
case A_CNF_MEDIA_10B_2:
result = lp->adapter_cnf & A_CNF_10B_2;
break;
default:
result = lp->adapter_cnf &
(A_CNF_10B_T | A_CNF_AUI | A_CNF_10B_2);
}
if (!result) {
printk("%s: EEPROM is configured for unavailable media\n", dev->name);
release_irq:
writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) & ~(SERIAL_TX_ON | SERIAL_RX_ON));
irq2dev_map[dev->irq] = 0;
return -EAGAIN;
}
/* set the hardware to the configured choice */
switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
case A_CNF_MEDIA_10B_T:
result = detect_tp(dev);
if (!result) printk("%s: 10Base-T (RJ-45) has no cable\n", dev->name);
if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */
result = A_CNF_MEDIA_10B_T; /* Yes! I don't care if I see a link pulse */
break;
case A_CNF_MEDIA_AUI:
printk("AUI? What stinking AUI?\n");
break;
case A_CNF_MEDIA_10B_2:
printk("10Base2? What stinking 10Base2?\n");
break;
case A_CNF_MEDIA_AUTO:
writereg(dev, PP_LineCTL, lp->linectl | AUTO_AUI_10BASET);
if (lp->adapter_cnf & A_CNF_10B_T)
if ((result = detect_tp(dev)) != 0)
break;
printk("%s: no media detected\n", dev->name);
goto release_irq;
}
switch(result) {
case 0: printk("%s: no network cable attached to configured media\n", dev->name);
goto release_irq;
case A_CNF_MEDIA_10B_T: printk("%s: using 10Base-T (RJ-45)\n", dev->name);break;
case A_CNF_MEDIA_AUI: printk("%s: using 10Base-5 (AUI)\n", dev->name);break;
case A_CNF_MEDIA_10B_2: printk("%s: using 10Base-2 (BNC)\n", dev->name);break;
default: printk("%s: unexpected result was %x\n", dev->name, result); goto release_irq;
}
/* Turn on both receive and transmit operations */
writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON);
/* Receive only error free packets addressed to this card */
lp->rx_mode = 0;
writereg(dev, PP_RxCTL, DEF_RX_ACCEPT);
lp->curr_rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL;
if (lp->isa_config & STREAM_TRANSFER)
lp->curr_rx_cfg |= RX_STREAM_ENBL;
writereg(dev, PP_RxCFG, lp->curr_rx_cfg);
writereg(dev, PP_TxCFG, TX_LOST_CRS_ENBL | TX_SQE_ERROR_ENBL | TX_OK_ENBL |
TX_LATE_COL_ENBL | TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL);
writereg(dev, PP_BufCFG, READY_FOR_TX_ENBL | RX_MISS_COUNT_OVRFLOW_ENBL |
TX_COL_COUNT_OVRFLOW_ENBL | TX_UNDERRUN_ENBL);
/* now that we've got our act together, enable everything */
writereg(dev, PP_BusCTL, ENABLE_IRQ
);
dev->tbusy = 0;
dev->interrupt = 0;
dev->start = 1;
return 0;
}
/* Open/initialize the board. This is called (in the current kernel)
sometime after booting when the 'ifconfig' program is run.
This routine should set everything up anew at each open, even
registers that "should" only need to be set once at boot, so that
there is non-reboot way to recover if something goes wrong.
*/
static int
net_open(struct net_device *dev)
{
struct net_local *lp = (struct net_local *)dev->priv;
int result = 0;
write_irq(dev, lp->chip_type, 0);
/* irq2dev_map[0] = dev; */
writereg(dev, PP_BusCTL, 0); /* ints off! */
#ifdef CONFIG_UCSIMM
*(volatile unsigned short *)0xfffff302 |= 0x0080; /* +ve pol irq */
dev->irq = IRQ5_IRQ_NUM;
if (request_irq(dev->irq | IRQ_MACHSPEC,
cs8900_interrupt,
IRQ_FLG_STD,
"CrystalLAN_cs8900a", NULL))
panic("Unable to attach cs8900 intr\n");
#endif
#ifdef CONFIG_ARCH_ATMEL
/* Set IRQ1 with high level sensitive & priority level 6. */
*(volatile unsigned int *) AIC_SMR(IRQ_IRQ1) = 0x46;
/* We use IRQ_IRQ1 for the network interrupt */
dev->irq = IRQ_IRQ1;
if (request_irq(dev->irq,
cs8900_interrupt,
IRQ_FLG_STD,
"CrystalLAN_cs8900a", NULL))
panic("Unable to attach cs8900 intr\n");
#endif
#if defined (CONFIG_BOARD_UCLINKII) || \
defined (CONFIG_BOARD_EVS3C4530LII) || \
defined (CONFIG_BOARD_EVS3C4530HEI)
*(volatile unsigned int *)IOPCON0 |= (xINTREQ0_ENABLE | xINTREQ0_ACT_HI);
dev->irq = _IRQ0;
if (request_irq (dev->irq, cs8900_interrupt, 0,
"Crystal_CS8900", dev))
panic("Unable to attach cs8900 intr\n");
#endif
#ifdef CONFIG_ALMA_ANS
/* We use positive polarity IRQ3 as a network interrupt */
ICR |= ICR_POL3;
dev->irq = IRQ3_IRQ_NUM;
if (request_irq(dev->irq | IRQ_MACHSPEC,
cs8900_interrupt,
IRQ_FLG_STD,
"CrystalLAN_cs8900a", NULL))
panic("Unable to attach cs8900 intr\n");
#endif
/* set the Ethernet address */
set_mac_address(dev, dev->dev_addr);
/* Set the LineCTL */
lp->linectl = 0;
/* check to make sure that they have the "right" hardware available */
switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
case A_CNF_MEDIA_10B_T:
result = lp->adapter_cnf & A_CNF_10B_T;
break;
case A_CNF_MEDIA_AUI:
result = lp->adapter_cnf & A_CNF_AUI;
break;
case A_CNF_MEDIA_10B_2:
result = lp->adapter_cnf & A_CNF_10B_2;
break;
default:
result = lp->adapter_cnf &
(A_CNF_10B_T | A_CNF_AUI | A_CNF_10B_2);
}
if (!result) {
printk("%s: EEPROM is configured for unavailable media\n", dev->name);
release_irq:
writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) & ~(SERIAL_TX_ON | SERIAL_RX_ON));
/* so subsequent opens don't fail we release the IRQ ...MaTed--- */
free_irq( dev->irq, dev);
/* irq2dev_map[dev->irq] = 0; */
return -EAGAIN;
}
/* set the hardware to the configured choice */
switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) {
case A_CNF_MEDIA_10B_T:
result = detect_tp(dev);
if (!result) {
printk("%s: 10Base-T (RJ-45) has no cable\n", dev->name);
if (lp->auto_neg_cnf & IMM_BIT) { /* check "ignore missing media" bit */
printk("%s: but ignore the fact.\n", dev->name);
result = A_CNF_MEDIA_10B_T; /* Yes! I don't care if I see a link pulse */
}
}
break;
case A_CNF_MEDIA_AUI:
printk("AUI is not supported by uCcs8900\n");
break;
case A_CNF_MEDIA_10B_2:
printk("10Base2 is not supported by uCcs8900\n");
break;
case A_CNF_MEDIA_AUTO:
writereg(dev, PP_LineCTL, lp->linectl | AUTO_AUI_10BASET);
if (lp->adapter_cnf & A_CNF_10B_T)
if ((result = detect_tp(dev)) != 0)
break;
printk("%s: no media detected\n", dev->name);
goto release_irq;
}
switch(result) {
case 0: printk("%s: no network cable attached to configured media\n", dev->name);
goto release_irq;
case A_CNF_MEDIA_10B_T: printk("%s: using 10Base-T (RJ-45)\n", dev->name);break;
case A_CNF_MEDIA_AUI: printk("%s: using 10Base-5 (AUI)\n", dev->name);break;
case A_CNF_MEDIA_10B_2: printk("%s: using 10Base-2 (BNC)\n", dev->name);break;
default: printk("%s: unexpected result was %x\n", dev->name, result); goto release_irq;
}
/* Turn on both receive and transmit operations */
writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON);
/* Receive only error free packets addressed to this card */
lp->rx_mode = 0;
writereg(dev, PP_RxCTL, DEF_RX_ACCEPT);
lp->curr_rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL;
if (lp->isa_config & STREAM_TRANSFER)
lp->curr_rx_cfg |= RX_STREAM_ENBL;
writereg(dev, PP_RxCFG, lp->curr_rx_cfg);
writereg(dev, PP_TxCFG, TX_LOST_CRS_ENBL | TX_SQE_ERROR_ENBL | TX_OK_ENBL |
TX_LATE_COL_ENBL | TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL);
writereg(dev, PP_BufCFG, READY_FOR_TX_ENBL | RX_MISS_COUNT_OVRFLOW_ENBL |
TX_COL_COUNT_OVRFLOW_ENBL | TX_UNDERRUN_ENBL);
/* now that we've got our act together, enable everything */
writereg(dev, PP_BusCTL, ENABLE_IRQ );
netif_start_queue(dev);
return 0;
}