3c574, 3c515 bitfields abuse
wn3_config is shared by these cards; the way we deal with it is both bad C (union abuse) and broken on big-endian. For 3c515 it's less serious (ISA cards are quite rare outside of little-endian boxen), but 3c574 is a pcmcia one and that'd better be endian-independent... Fix is the same in both cases. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Al Viro
Jeff Garzik
parent
c15561f0e5
commit
b665982409
|
|
@ -243,14 +243,16 @@ enum eeprom_offset {
|
|||
enum Window3 { /* Window 3: MAC/config bits. */
|
||||
Wn3_Config = 0, Wn3_MAC_Ctrl = 6, Wn3_Options = 8,
|
||||
};
|
||||
union wn3_config {
|
||||
int i;
|
||||
struct w3_config_fields {
|
||||
unsigned int ram_size:3, ram_width:1, ram_speed:2, rom_size:2;
|
||||
int pad8:8;
|
||||
unsigned int ram_split:2, pad18:2, xcvr:3, pad21:1, autoselect:1;
|
||||
int pad24:7;
|
||||
} u;
|
||||
enum wn3_config {
|
||||
Ram_size = 7,
|
||||
Ram_width = 8,
|
||||
Ram_speed = 0x30,
|
||||
Rom_size = 0xc0,
|
||||
Ram_split_shift = 16,
|
||||
Ram_split = 3 << Ram_split_shift,
|
||||
Xcvr_shift = 20,
|
||||
Xcvr = 7 << Xcvr_shift,
|
||||
Autoselect = 0x1000000,
|
||||
};
|
||||
|
||||
enum Window4 {
|
||||
|
|
@ -614,7 +616,7 @@ static int corkscrew_setup(struct net_device *dev, int ioaddr,
|
|||
/* Read the station address from the EEPROM. */
|
||||
EL3WINDOW(0);
|
||||
for (i = 0; i < 0x18; i++) {
|
||||
short *phys_addr = (short *) dev->dev_addr;
|
||||
__be16 *phys_addr = (__be16 *) dev->dev_addr;
|
||||
int timer;
|
||||
outw(EEPROM_Read + i, ioaddr + Wn0EepromCmd);
|
||||
/* Pause for at least 162 us. for the read to take place. */
|
||||
|
|
@ -646,22 +648,22 @@ static int corkscrew_setup(struct net_device *dev, int ioaddr,
|
|||
|
||||
{
|
||||
char *ram_split[] = { "5:3", "3:1", "1:1", "3:5" };
|
||||
union wn3_config config;
|
||||
__u32 config;
|
||||
EL3WINDOW(3);
|
||||
vp->available_media = inw(ioaddr + Wn3_Options);
|
||||
config.i = inl(ioaddr + Wn3_Config);
|
||||
config = inl(ioaddr + Wn3_Config);
|
||||
if (corkscrew_debug > 1)
|
||||
printk(KERN_INFO " Internal config register is %4.4x, transceivers %#x.\n",
|
||||
config.i, inw(ioaddr + Wn3_Options));
|
||||
config, inw(ioaddr + Wn3_Options));
|
||||
printk(KERN_INFO " %dK %s-wide RAM %s Rx:Tx split, %s%s interface.\n",
|
||||
8 << config.u.ram_size,
|
||||
config.u.ram_width ? "word" : "byte",
|
||||
ram_split[config.u.ram_split],
|
||||
config.u.autoselect ? "autoselect/" : "",
|
||||
media_tbl[config.u.xcvr].name);
|
||||
dev->if_port = config.u.xcvr;
|
||||
vp->default_media = config.u.xcvr;
|
||||
vp->autoselect = config.u.autoselect;
|
||||
8 << config & Ram_size,
|
||||
config & Ram_width ? "word" : "byte",
|
||||
ram_split[(config & Ram_split) >> Ram_split_shift],
|
||||
config & Autoselect ? "autoselect/" : "",
|
||||
media_tbl[(config & Xcvr) >> Xcvr_shift].name);
|
||||
vp->default_media = (config & Xcvr) >> Xcvr_shift;
|
||||
vp->autoselect = config & Autoselect ? 1 : 0;
|
||||
dev->if_port = vp->default_media;
|
||||
}
|
||||
if (vp->media_override != 7) {
|
||||
printk(KERN_INFO " Media override to transceiver type %d (%s).\n",
|
||||
|
|
@ -694,14 +696,14 @@ static int corkscrew_open(struct net_device *dev)
|
|||
{
|
||||
int ioaddr = dev->base_addr;
|
||||
struct corkscrew_private *vp = netdev_priv(dev);
|
||||
union wn3_config config;
|
||||
__u32 config;
|
||||
int i;
|
||||
|
||||
/* Before initializing select the active media port. */
|
||||
EL3WINDOW(3);
|
||||
if (vp->full_duplex)
|
||||
outb(0x20, ioaddr + Wn3_MAC_Ctrl); /* Set the full-duplex bit. */
|
||||
config.i = inl(ioaddr + Wn3_Config);
|
||||
config = inl(ioaddr + Wn3_Config);
|
||||
|
||||
if (vp->media_override != 7) {
|
||||
if (corkscrew_debug > 1)
|
||||
|
|
@ -727,12 +729,12 @@ static int corkscrew_open(struct net_device *dev)
|
|||
} else
|
||||
dev->if_port = vp->default_media;
|
||||
|
||||
config.u.xcvr = dev->if_port;
|
||||
outl(config.i, ioaddr + Wn3_Config);
|
||||
config = (config & ~Xcvr) | (dev->if_port << Xcvr_shift);
|
||||
outl(config, ioaddr + Wn3_Config);
|
||||
|
||||
if (corkscrew_debug > 1) {
|
||||
printk("%s: corkscrew_open() InternalConfig %8.8x.\n",
|
||||
dev->name, config.i);
|
||||
dev->name, config);
|
||||
}
|
||||
|
||||
outw(TxReset, ioaddr + EL3_CMD);
|
||||
|
|
@ -901,7 +903,7 @@ static void corkscrew_timer(unsigned long data)
|
|||
ok = 1;
|
||||
}
|
||||
if (!ok) {
|
||||
union wn3_config config;
|
||||
__u32 config;
|
||||
|
||||
do {
|
||||
dev->if_port =
|
||||
|
|
@ -928,9 +930,9 @@ static void corkscrew_timer(unsigned long data)
|
|||
ioaddr + Wn4_Media);
|
||||
|
||||
EL3WINDOW(3);
|
||||
config.i = inl(ioaddr + Wn3_Config);
|
||||
config.u.xcvr = dev->if_port;
|
||||
outl(config.i, ioaddr + Wn3_Config);
|
||||
config = inl(ioaddr + Wn3_Config);
|
||||
config = (config & ~Xcvr) | (dev->if_port << Xcvr_shift);
|
||||
outl(config, ioaddr + Wn3_Config);
|
||||
|
||||
outw(dev->if_port == 3 ? StartCoax : StopCoax,
|
||||
ioaddr + EL3_CMD);
|
||||
|
|
|
|||
|
|
@ -187,14 +187,16 @@ enum Window1 {
|
|||
enum Window3 { /* Window 3: MAC/config bits. */
|
||||
Wn3_Config=0, Wn3_MAC_Ctrl=6, Wn3_Options=8,
|
||||
};
|
||||
union wn3_config {
|
||||
int i;
|
||||
struct w3_config_fields {
|
||||
unsigned int ram_size:3, ram_width:1, ram_speed:2, rom_size:2;
|
||||
int pad8:8;
|
||||
unsigned int ram_split:2, pad18:2, xcvr:3, pad21:1, autoselect:1;
|
||||
int pad24:7;
|
||||
} u;
|
||||
enum wn3_config {
|
||||
Ram_size = 7,
|
||||
Ram_width = 8,
|
||||
Ram_speed = 0x30,
|
||||
Rom_size = 0xc0,
|
||||
Ram_split_shift = 16,
|
||||
Ram_split = 3 << Ram_split_shift,
|
||||
Xcvr_shift = 20,
|
||||
Xcvr = 7 << Xcvr_shift,
|
||||
Autoselect = 0x1000000,
|
||||
};
|
||||
|
||||
enum Window4 { /* Window 4: Xcvr/media bits. */
|
||||
|
|
@ -342,7 +344,7 @@ static int tc574_config(struct pcmcia_device *link)
|
|||
kio_addr_t ioaddr;
|
||||
__be16 *phys_addr;
|
||||
char *cardname;
|
||||
union wn3_config config;
|
||||
__u32 config;
|
||||
DECLARE_MAC_BUF(mac);
|
||||
|
||||
phys_addr = (__be16 *)dev->dev_addr;
|
||||
|
|
@ -401,9 +403,9 @@ static int tc574_config(struct pcmcia_device *link)
|
|||
outw(0<<11, ioaddr + RunnerRdCtrl);
|
||||
printk(KERN_INFO " ASIC rev %d,", mcr>>3);
|
||||
EL3WINDOW(3);
|
||||
config.i = inl(ioaddr + Wn3_Config);
|
||||
lp->default_media = config.u.xcvr;
|
||||
lp->autoselect = config.u.autoselect;
|
||||
config = inl(ioaddr + Wn3_Config);
|
||||
lp->default_media = (config & Xcvr) >> Xcvr_shift;
|
||||
lp->autoselect = config & Autoselect ? 1 : 0;
|
||||
}
|
||||
|
||||
init_timer(&lp->media);
|
||||
|
|
@ -464,8 +466,9 @@ static int tc574_config(struct pcmcia_device *link)
|
|||
dev->name, cardname, dev->base_addr, dev->irq,
|
||||
print_mac(mac, dev->dev_addr));
|
||||
printk(" %dK FIFO split %s Rx:Tx, %sMII interface.\n",
|
||||
8 << config.u.ram_size, ram_split[config.u.ram_split],
|
||||
config.u.autoselect ? "autoselect " : "");
|
||||
8 << config & Ram_size,
|
||||
ram_split[(config & Ram_split) >> Ram_split_shift],
|
||||
config & Autoselect ? "autoselect " : "");
|
||||
|
||||
return 0;
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue