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ar71xx: ag71xx: add support for getting switch port link status

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SVN-Revision: 29017
This commit is contained in:
Gabor Juhos 2011-11-13 11:27:04 +00:00
parent d0db89133c
commit d2316b2a45
1 changed files with 67 additions and 0 deletions
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67
target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c
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@ -96,6 +96,7 @@
#define AR7240_REG_PORT_BASE(_port) (0x100 + (_port) * 0x100)
#define AR7240_REG_PORT_STATUS(_port) (AR7240_REG_PORT_BASE((_port)) + 0x00)
#define AR7240_PORT_STATUS_SPEED_S 0
#define AR7240_PORT_STATUS_SPEED_M BITM(2)
#define AR7240_PORT_STATUS_SPEED_10 0
#define AR7240_PORT_STATUS_SPEED_100 1
@ -207,6 +208,7 @@ struct ar7240sw {
u8 vlan_table[AR7240_MAX_VLANS];
u8 vlan_tagged;
u16 pvid[AR7240_NUM_PORTS];
char buf[80];
};
struct ar7240sw_hw_stat {
@ -645,6 +647,63 @@ ar7240_get_vlan(struct switch_dev *dev, const struct switch_attr *attr,
return 0;
}
static const char *
ar7240_speed_str(u32 status)
{
u32 speed;
speed = (status >> AR7240_PORT_STATUS_SPEED_S) &
AR7240_PORT_STATUS_SPEED_M;
switch (speed) {
case AR7240_PORT_STATUS_SPEED_10:
return "10baseT";
case AR7240_PORT_STATUS_SPEED_100:
return "100baseT";
case AR7240_PORT_STATUS_SPEED_1000:
return "1000baseT";
}
return "unknown";
}
static int
ar7240_port_get_link(struct switch_dev *dev, const struct switch_attr *attr,
struct switch_val *val)
{
struct ar7240sw *as = sw_to_ar7240(dev);
struct mii_bus *mii = as->mii_bus;
u32 len;
u32 status;
int port;
port = val->port_vlan;
memset(as->buf, '\0', sizeof(as->buf));
status = ar7240sw_reg_read(mii, AR7240_REG_PORT_STATUS(port));
if (status & AR7240_PORT_STATUS_LINK_UP) {
len = snprintf(as->buf, sizeof(as->buf),
"port:%d link:up speed:%s %s-duplex %s%s%s",
port,
ar7240_speed_str(status),
(status & AR7240_PORT_STATUS_DUPLEX) ?
"full" : "half",
(status & AR7240_PORT_STATUS_TXFLOW) ?
"txflow ": "",
(status & AR7240_PORT_STATUS_RXFLOW) ?
"rxflow " : "",
(status & AR7240_PORT_STATUS_LINK_AUTO) ?
"auto ": "");
} else {
len = snprintf(as->buf, sizeof(as->buf),
"port:%d link:down", port);
}
val->value.s = as->buf;
val->len = len;
return 0;
}
static void
ar7240_vtu_op(struct ar7240sw *as, u32 op, u32 val)
@ -733,6 +792,14 @@ static struct switch_attr ar7240_globals[] = {
};
static struct switch_attr ar7240_port[] = {
{
.type = SWITCH_TYPE_STRING,
.name = "link",
.description = "Get port link information",
.max = 1,
.set = NULL,
.get = ar7240_port_get_link,
},
};
static struct switch_attr ar7240_vlan[] = {