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WAN: Simplify HD64572 status handling.

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Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
This commit is contained in:
Krzysztof Hałasa 2008-07-09 21:24:42 +02:00
parent 0446c3b1e6
commit 0954ed8269
1 changed files with 8 additions and 29 deletions
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37
drivers/net/wan/hd64572.c
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@ -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);