diff options
Diffstat (limited to 'drivers/net/cs89x0.c')
| -rw-r--r-- | drivers/net/cs89x0.c | 85 |
1 files changed, 42 insertions, 43 deletions
diff --git a/drivers/net/cs89x0.c b/drivers/net/cs89x0.c index 47eecce35fa..e4d50f0de93 100644 --- a/drivers/net/cs89x0.c +++ b/drivers/net/cs89x0.c @@ -15,13 +15,13 @@ Changelog: Mike Cruse : mcruse@cti-ltd.com - : Changes for Linux 2.0 compatibility. + : Changes for Linux 2.0 compatibility. : Added dev_id parameter in net_interrupt(), : request_irq() and free_irq(). Just NULL for now. Mike Cruse : Added MOD_INC_USE_COUNT and MOD_DEC_USE_COUNT macros : in net_open() and net_close() so kerneld would know - : that the module is in use and wouldn't eject the + : that the module is in use and wouldn't eject the : driver prematurely. Mike Cruse : Rewrote init_module() and cleanup_module using 8390.c @@ -31,7 +31,7 @@ Russ Nelson : Jul 13 1998. Added RxOnly DMA support. - Melody Lee : Aug 10 1999. Changes for Linux 2.2.5 compatibility. + Melody Lee : Aug 10 1999. Changes for Linux 2.2.5 compatibility. : email: ethernet@crystal.cirrus.com Alan Cox : Removed 1.2 support, added 2.1 extra counters. @@ -163,12 +163,12 @@ static char version[] __initdata = /* First, a few definitions that the brave might change. A zero-terminated list of I/O addresses to be probed. Some special flags.. Addr & 1 = Read back the address port, look for signature and reset - the page window before probing - Addr & 3 = Reset the page window and probe + the page window before probing + Addr & 3 = Reset the page window and probe The CLPS eval board has the Cirrus chip at 0x80090300, in ARM IO space, but it is possible that a Cirrus board could be plugged into the ISA slots. */ -/* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps +/* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps them to system IRQ numbers. This mapping is card specific and is set to the configuration of the Cirrus Eval board for this chip. */ #ifdef CONFIG_ARCH_CLPS7500 @@ -299,7 +299,7 @@ static int __init media_fn(char *str) __setup("cs89x0_media=", media_fn); - + /* Check for a network adaptor of this type, and return '0' iff one exists. If dev->base_addr == 0, probe all likely locations. If dev->base_addr == 1, always return failure. @@ -630,7 +630,7 @@ cs89x0_probe1(struct net_device *dev, int ioaddr, int modular) dev->base_addr); reset_chip(dev); - + /* Here we read the current configuration of the chip. If there is no Extended EEPROM then the idea is to not disturb the chip configuration, it should have been correctly setup by automatic @@ -654,7 +654,7 @@ cs89x0_probe1(struct net_device *dev, int ioaddr, int modular) cnt = (*confd++ & 0x00ff) >> 1; while (--cnt > 0) { __u16 j = *confd++; - + switch (j & 0x0fff) { case PP_IA: for (i = 0; i < ETH_ALEN/2; i++) { @@ -670,7 +670,7 @@ cs89x0_probe1(struct net_device *dev, int ioaddr, int modular) } else #endif - if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) == + if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) == (EEPROM_OK|EEPROM_PRESENT)) { /* Load the MAC. */ for (i=0; i < ETH_ALEN/2; i++) { @@ -679,17 +679,17 @@ cs89x0_probe1(struct net_device *dev, int ioaddr, int modular) dev->dev_addr[i*2] = Addr & 0xFF; dev->dev_addr[i*2+1] = Addr >> 8; } - - /* Load the Adapter Configuration. - Note: Barring any more specific information from some - other source (ie EEPROM+Schematics), we would not know - how to operate a 10Base2 interface on the AUI port. - However, since we do read the status of HCB1 and use - settings that always result in calls to control_dc_dc(dev,0) - a BNC interface should work if the enable pin - (dc/dc converter) is on HCB1. It will be called AUI + + /* Load the Adapter Configuration. + Note: Barring any more specific information from some + other source (ie EEPROM+Schematics), we would not know + how to operate a 10Base2 interface on the AUI port. + However, since we do read the status of HCB1 and use + settings that always result in calls to control_dc_dc(dev,0) + a BNC interface should work if the enable pin + (dc/dc converter) is on HCB1. It will be called AUI however. */ - + lp->adapter_cnf = 0; i = readreg(dev, PP_LineCTL); /* Preserve the setting of the HCB1 pin. */ @@ -706,22 +706,22 @@ cs89x0_probe1(struct net_device *dev, int ioaddr, int modular) lp->adapter_cnf |= A_CNF_AUI | A_CNF_MEDIA_AUI; /* Check if the card is in Auto mode. */ if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUTO_AUI_10BASET) - lp->adapter_cnf |= A_CNF_AUI | A_CNF_10B_T | + lp->adapter_cnf |= A_CNF_AUI | A_CNF_10B_T | A_CNF_MEDIA_AUI | A_CNF_MEDIA_10B_T | A_CNF_MEDIA_AUTO; - + if (net_debug > 1) printk(KERN_INFO "%s: PP_LineCTL=0x%x, adapter_cnf=0x%x\n", dev->name, i, lp->adapter_cnf); /* IRQ. Other chips already probe, see below. */ - if (lp->chip_type == CS8900) + if (lp->chip_type == CS8900) lp->isa_config = readreg(dev, PP_CS8900_ISAINT) & INT_NO_MASK; - + printk( "[Cirrus EEPROM] "); } printk("\n"); - + /* First check to see if an EEPROM is attached. */ #ifdef CONFIG_SH_HICOSH4 /* no EEPROM on HiCO, don't hazzle with it here */ if (1) { @@ -736,13 +736,13 @@ cs89x0_probe1(struct net_device *dev, int ioaddr, int modular) /* Check if the chip was able to read its own configuration starting at 0 in the EEPROM*/ if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) != - (EEPROM_OK|EEPROM_PRESENT)) + (EEPROM_OK|EEPROM_PRESENT)) printk(KERN_WARNING "cs89x0: Extended EEPROM checksum bad and no Cirrus EEPROM, relying on command line\n"); - + } else { /* This reads an extended EEPROM that is not documented in the CS8900 datasheet. */ - + /* get transmission control word but keep the autonegotiation bits */ if (!lp->auto_neg_cnf) lp->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET/2]; /* Store adapter configuration */ @@ -810,7 +810,7 @@ cs89x0_probe1(struct net_device *dev, int ioaddr, int modular) printk("\ncs89x0: invalid ISA interrupt number %d\n", i); else i = cs8900_irq_map[i]; - + lp->irq_map = CS8900_IRQ_MAP; /* fixed IRQ map for CS8900 */ } else { int irq_map_buff[IRQ_MAP_LEN/2]; @@ -875,7 +875,7 @@ out1: return retval; } - + /********************************* * This page contains DMA routines **********************************/ @@ -1064,14 +1064,14 @@ void __init reset_chip(struct net_device *dev) ; } - + static void control_dc_dc(struct net_device *dev, int on_not_off) { struct net_local *lp = netdev_priv(dev); unsigned int selfcontrol; int timenow = jiffies; - /* control the DC to DC convertor in the SelfControl register. + /* control the DC to DC convertor in the SelfControl register. Note: This is hooked up to a general purpose pin, might not always be a DC to DC convertor. */ @@ -1240,7 +1240,7 @@ detect_bnc(struct net_device *dev) return DETECTED_NONE; } - + static void write_irq(struct net_device *dev, int chip_type, int irq) { @@ -1544,7 +1544,7 @@ static int net_send_packet(struct sk_buff *skb, struct net_device *dev) * Gasp! It hasn't. But that shouldn't happen since * we're waiting for TxOk, so return 1 and requeue this packet. */ - + spin_unlock_irq(&lp->lock); if (net_debug) printk("cs89x0: Tx buffer not free!\n"); return 1; @@ -1569,10 +1569,10 @@ static int net_send_packet(struct sk_buff *skb, struct net_device *dev) return 0; } - + /* The typical workload of the driver: Handle the network interface interrupts. */ - + static irqreturn_t net_interrupt(int irq, void *dev_id, struct pt_regs * regs) { struct net_device *dev = dev_id; @@ -1740,7 +1740,7 @@ net_close(struct net_device *dev) #endif netif_stop_queue(dev); - + writereg(dev, PP_RxCFG, 0); writereg(dev, PP_TxCFG, 0); writereg(dev, PP_BufCFG, 0); @@ -1791,7 +1791,7 @@ static void set_multicast_list(struct net_device *dev) /* The multicast-accept list is initialized to accept-all, and we rely on higher-level filtering for now. */ lp->rx_mode = RX_MULTCAST_ACCEPT; - } + } else lp->rx_mode = 0; @@ -1833,8 +1833,8 @@ static int set_mac_address(struct net_device *dev, void *p) static struct net_device *dev_cs89x0; /* - * Support the 'debug' module parm even if we're compiled for non-debug to - * avoid breaking someone's startup scripts + * Support the 'debug' module parm even if we're compiled for non-debug to + * avoid breaking someone's startup scripts */ static int io; @@ -1905,8 +1905,7 @@ MODULE_LICENSE("GPL"); */ -int -init_module(void) +int __init init_module(void) { struct net_device *dev = alloc_etherdev(sizeof(struct net_local)); struct net_local *lp; @@ -1984,7 +1983,7 @@ cleanup_module(void) free_netdev(dev_cs89x0); } #endif /* MODULE */ - + /* * Local variables: * version-control: t |