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Commit 19594f37 authored by Denis Vlasenko's avatar Denis Vlasenko Committed by Linus Torvalds
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[PATCH] fealnx #1: replace magic constants with enums

parent d666b06d
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Showing with 42 additions and 33 deletions
drivers/net/fealnx.c
View file @ 19594f37
......@@ -233,15 +233,29 @@ enum intr_status_bits {
RxErr = 0x00000002, /* receive error */
};
/* Bits in the NetworkConfig register. */
/* Bits in the NetworkConfig register, W for writing, R for reading */
/* FIXME: some names are invented by me. Marked with (name?) */
/* If you have docs and know bit names, please fix 'em */
enum rx_mode_bits {
RxModeMask = 0xe0,
PROM = 0x80, /* promiscuous mode */
AB = 0x40, /* accept broadcast */
AM = 0x20, /* accept mutlicast */
ARP = 0x08, /* receive runt pkt */
ALP = 0x04, /* receive long pkt */
SEP = 0x02, /* receive error pkt */
CR_W_ENH = 0x02000000, /* enhanced mode (name?) */
CR_W_FD = 0x00100000, /* full duplex */
CR_W_PS10 = 0x00080000, /* 10 mbit */
CR_W_TXEN = 0x00040000, /* tx enable (name?) */
CR_W_PS1000 = 0x00010000, /* 1000 mbit */
/* CR_W_RXBURSTMASK= 0x00000e00, Im unsure about this */
CR_W_RXMODEMASK = 0x000000e0,
CR_W_PROM = 0x00000080, /* promiscuous mode */
CR_W_AB = 0x00000040, /* accept broadcast */
CR_W_AM = 0x00000020, /* accept mutlicast */
CR_W_ARP = 0x00000008, /* receive runt pkt */
CR_W_ALP = 0x00000004, /* receive long pkt */
CR_W_SEP = 0x00000002, /* receive error pkt */
CR_W_RXEN = 0x00000001, /* rx enable (unicast?) (name?) */
CR_R_TXSTOP = 0x04000000, /* tx stopped (name?) */
CR_R_FD = 0x00100000, /* full duplex detected */
CR_R_PS10 = 0x00080000, /* 10 mbit detected */
CR_R_RXSTOP = 0x00008000, /* rx stopped (name?) */
};
/* The Tulip Rx and Tx buffer descriptors. */
......@@ -375,10 +389,7 @@ enum tx_desc_control_bits {
#define LXT1000_Full 0x200
// 89/12/29 add, for phy specific status register, levelone phy, (end)
/* for 3-in-1 case */
#define PS10 0x00080000
#define FD 0x00100000
#define PS1000 0x00010000
/* for 3-in-1 case, BMCRSR register */
#define LinkIsUp2 0x00040000
/* for PHY */
......@@ -449,13 +460,13 @@ static void reset_rx_descriptors(struct net_device *dev);
void stop_nic_tx(long ioaddr, long crvalue)
{
writel(crvalue & (~0x40000), ioaddr + TCRRCR);
writel(crvalue & (~CR_W_TXEN), ioaddr + TCRRCR);
/* wait for tx stop */
{
int i = 0, delay = 0x1000;
while ((!(readl(ioaddr + TCRRCR) & 0x04000000)) && (i < delay)) {
while ((!(readl(ioaddr + TCRRCR) & CR_R_TXSTOP)) && (i < delay)) {
++i;
}
}
......@@ -464,13 +475,13 @@ void stop_nic_tx(long ioaddr, long crvalue)
void stop_nic_rx(long ioaddr, long crvalue)
{
writel(crvalue & (~0x1), ioaddr + TCRRCR);
writel(crvalue & (~CR_W_RXEN), ioaddr + TCRRCR);
/* wait for rx stop */
{
int i = 0, delay = 0x1000;
while ((!(readl(ioaddr + TCRRCR) & 0x00008000)) && (i < delay)) {
while ((!(readl(ioaddr + TCRRCR) & CR_R_RXSTOP)) && (i < delay)) {
++i;
}
}
......@@ -949,7 +960,7 @@ static int netdev_open(struct net_device *dev)
np->imrvalue = TUNF | CNTOVF | RBU | TI | RI;
if (np->pci_dev->device == 0x891) {
np->bcrvalue |= 0x200; /* set PROG bit */
np->crvalue |= 0x02000000; /* set enhanced bit */
np->crvalue |= CR_W_ENH; /* set enhanced bit */
np->imrvalue |= ETI;
}
writel(np->bcrvalue, ioaddr + BCR);
......@@ -1026,11 +1037,11 @@ static void getlinktype(struct net_device *dev)
struct netdev_private *np = dev->priv;
if (np->PHYType == MysonPHY) { /* 3-in-1 case */
if (readl(dev->base_addr + TCRRCR) & FD)
if (readl(dev->base_addr + TCRRCR) & CR_R_FD)
np->duplexmode = 2; /* full duplex */
else
np->duplexmode = 1; /* half duplex */
if (readl(dev->base_addr + TCRRCR) & PS10)
if (readl(dev->base_addr + TCRRCR) & CR_R_PS10)
np->line_speed = 1; /* 10M */
else
np->line_speed = 2; /* 100M */
......@@ -1112,15 +1123,13 @@ static void getlinktype(struct net_device *dev)
else
np->line_speed = 1; /* 10M */
}
// chage crvalue
// np->crvalue&=(~PS10)&(~FD);
np->crvalue &= (~PS10) & (~FD) & (~PS1000);
np->crvalue &= (~CR_W_PS10) & (~CR_W_FD) & (~CR_W_PS1000);
if (np->line_speed == 1)
np->crvalue |= PS10;
np->crvalue |= CR_W_PS10;
else if (np->line_speed == 3)
np->crvalue |= PS1000;
np->crvalue |= CR_W_PS1000;
if (np->duplexmode == 2)
np->crvalue |= FD;
np->crvalue |= CR_W_FD;
}
}
......@@ -1168,7 +1177,7 @@ static void netdev_timer(unsigned long data)
getlinktype(dev);
if (np->crvalue != old_crvalue) {
stop_nic_tx(ioaddr, np->crvalue);
stop_nic_rx(ioaddr, np->crvalue & (~0x40000));
stop_nic_rx(ioaddr, np->crvalue & (~CR_W_TXEN));
writel(np->crvalue, ioaddr + TCRRCR);
}
}
......@@ -1488,7 +1497,7 @@ static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *rgs
if (tx_status & TXOWN)
break;
if (!(np->crvalue & 0x02000000)) {
if (!(np->crvalue & CR_W_ENH)) {
if (tx_status & (CSL | LC | EC | UDF | HF)) {
np->stats.tx_errors++;
if (tx_status & EC)
......@@ -1537,7 +1546,7 @@ static irqreturn_t intr_handler(int irq, void *dev_instance, struct pt_regs *rgs
netif_wake_queue(dev);
/* read transmit status for enhanced mode only */
if (np->crvalue & 0x02000000) {
if (np->crvalue & CR_W_ENH) {
long data;
data = readl(ioaddr + TSR);
......@@ -1746,12 +1755,12 @@ static void set_rx_mode(struct net_device *dev)
/* Unconditionally log net taps. */
printk(KERN_NOTICE "%s: Promiscuous mode enabled.\n", dev->name);
memset(mc_filter, 0xff, sizeof(mc_filter));
rx_mode = PROM | AB | AM;
rx_mode = CR_W_PROM | CR_W_AB | CR_W_AM;
} else if ((dev->mc_count > multicast_filter_limit)
|| (dev->flags & IFF_ALLMULTI)) {
/* Too many to match, or accept all multicasts. */
memset(mc_filter, 0xff, sizeof(mc_filter));
rx_mode = AB | AM;
rx_mode = CR_W_AB | CR_W_AM;
} else {
struct dev_mc_list *mclist;
int i;
......@@ -1763,15 +1772,15 @@ static void set_rx_mode(struct net_device *dev)
bit = (ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26) ^ 0x3F;
mc_filter[bit >> 5] |= (1 << bit);
}
rx_mode = AB | AM;
rx_mode = CR_W_AB | CR_W_AM;
}
stop_nic_tx(ioaddr, np->crvalue);
stop_nic_rx(ioaddr, np->crvalue & (~0x40000));
stop_nic_rx(ioaddr, np->crvalue & (~CR_W_TXEN));
writel(mc_filter[0], ioaddr + MAR0);
writel(mc_filter[1], ioaddr + MAR1);
np->crvalue &= ~RxModeMask;
np->crvalue &= ~CR_W_RXMODEMASK;
np->crvalue |= rx_mode;
writel(np->crvalue, ioaddr + TCRRCR);
}
......
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