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authorKrzysztof Hałasa <khc@pm.waw.pl>2008-07-09 23:24:42 +0400
committerKrzysztof Hałasa <khc@pm.waw.pl>2008-11-22 04:49:47 +0300
commit0954ed826921bcf11352e05a58d598c493e6bdfb (patch)
tree85674f9901e07b1e0152bb09cff29f94adf3b3a0 /drivers/net/wan/hd64572.c
parent0446c3b1e6208c6563ff9a0b22fb3b5e5e3e775c (diff)
downloadlinux-0954ed826921bcf11352e05a58d598c493e6bdfb.tar.xz
WAN: Simplify HD64572 status handling.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Diffstat (limited to 'drivers/net/wan/hd64572.c')
-rw-r--r--drivers/net/wan/hd64572.c37
1 files changed, 8 insertions, 29 deletions
diff --git a/drivers/net/wan/hd64572.c b/drivers/net/wan/hd64572.c
index 0952e228c2c3..46a99a668e41 100644
--- a/drivers/net/wan/hd64572.c
+++ b/drivers/net/wan/hd64572.c
@@ -51,10 +51,6 @@
#define get_dmac_rx(port) (phy_node(port) ? DMAC1RX_OFFSET : DMAC0RX_OFFSET)
#define get_dmac_tx(port) (phy_node(port) ? DMAC1TX_OFFSET : DMAC0TX_OFFSET)
-#define SCA_INTR_MSCI(node) (node ? 0x10 : 0x01)
-#define SCA_INTR_DMAC_RX(node) (node ? 0x20 : 0x02)
-#define SCA_INTR_DMAC_TX(node) (node ? 0x40 : 0x04)
-
static int sca_poll(struct napi_struct *napi, int budget);
static inline struct net_device *port_to_dev(port_t *port)
@@ -62,21 +58,6 @@ static inline struct net_device *port_to_dev(port_t *port)
return port->dev;
}
-static inline int sca_intr_status(card_t *card)
-{
- u8 result = 0;
- u32 isr0 = sca_inl(ISR0, card);
-
- if (isr0 & 0x00000002) result |= SCA_INTR_DMAC_RX(0);
- if (isr0 & 0x00000020) result |= SCA_INTR_DMAC_TX(0);
- if (isr0 & 0x00000200) result |= SCA_INTR_DMAC_RX(1);
- if (isr0 & 0x00002000) result |= SCA_INTR_DMAC_TX(1);
- if (isr0 & 0x00080000) result |= SCA_INTR_MSCI(0);
- if (isr0 & 0x08000000) result |= SCA_INTR_MSCI(1);
-
- return result;
-}
-
static inline port_t* dev_to_port(struct net_device *dev)
{
return dev_to_hdlc(dev)->priv;
@@ -358,16 +339,16 @@ static inline void sca_tx_done(port_t *port)
static int sca_poll(struct napi_struct *napi, int budget)
{
port_t *port = container_of(napi, port_t, napi);
- u8 stat = sca_intr_status(port->card);
+ u32 isr0 = sca_inl(ISR0, port->card);
int received = 0;
- if (stat & SCA_INTR_MSCI(port->phy_node))
+ if (isr0 & (port->phy_node ? 0x08000000 : 0x00080000))
sca_msci_intr(port);
- if (stat & SCA_INTR_DMAC_TX(port->phy_node))
+ if (isr0 & (port->phy_node ? 0x00002000 : 0x00000020))
sca_tx_done(port);
- if (stat & SCA_INTR_DMAC_RX(port->phy_node))
+ if (isr0 & (port->phy_node ? 0x00000200 : 0x00000002))
received = sca_rx_done(port, budget);
if (received < budget) {
@@ -378,17 +359,15 @@ static int sca_poll(struct napi_struct *napi, int budget)
return received;
}
-static irqreturn_t sca_intr(int irq, void* dev_id)
+static irqreturn_t sca_intr(int irq, void *dev_id)
{
card_t *card = dev_id;
- int i;
- u8 stat = sca_intr_status(card);
- int handled = 0;
+ u32 isr0 = sca_inl(ISR0, card);
+ int i, handled = 0;
for (i = 0; i < 2; i++) {
port_t *port = get_port(card, i);
- if (port && (stat & (SCA_INTR_MSCI(i) | SCA_INTR_DMAC_RX(i) |
- SCA_INTR_DMAC_TX(i)))) {
+ if (port && (isr0 & (i ? 0x08002200 : 0x00080022))) {
handled = 1;
disable_intr(port);
netif_rx_schedule(port->dev, &port->napi);