AcoSail/kernel_optimize_test
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WAN: rework HD64572 interrupts a bit.

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Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
This commit is contained in:
Krzysztof Hałasa 2008-07-09 19:28:45 +02:00
parent b0942f78dd
commit 0446c3b1e6
1 changed files with 13 additions and 23 deletions
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36
drivers/net/wan/hd64572.c
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@ -67,19 +67,12 @@ static inline int sca_intr_status(card_t *card)
u8 result = 0;
u32 isr0 = sca_inl(ISR0, card);
if (isr0 & 0x0000000F) result |= SCA_INTR_DMAC_RX(0);
if (isr0 & 0x000000F0) result |= SCA_INTR_DMAC_TX(0);
if (isr0 & 0x00000F00) result |= SCA_INTR_DMAC_RX(1);
if (isr0 & 0x0000F000) result |= SCA_INTR_DMAC_TX(1);
if (isr0 & 0x003E0000) result |= SCA_INTR_MSCI(0);
if (isr0 & 0x3E000000) result |= SCA_INTR_MSCI(1);
if (!(result & SCA_INTR_DMAC_TX(0)))
if (sca_in(DSR_TX(0), card) & DSR_EOM)
result |= SCA_INTR_DMAC_TX(0);
if (!(result & SCA_INTR_DMAC_TX(1)))
if (sca_in(DSR_TX(1), card) & DSR_EOM)
result |= SCA_INTR_DMAC_TX(1);
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;
}
@ -91,10 +84,9 @@ static inline port_t* dev_to_port(struct net_device *dev)
static inline void enable_intr(port_t *port)
{
/* DMA & MSCI IRQ enable */
/* IR0_TXINT | IR0_RXINTA | IR0_DMIB* | IR0_DMIA* */
/* enable DMIB and MSCI RXINTA interrupts */
sca_outl(sca_inl(IER0, port->card) |
(phy_node(port) ? 0x0A006600 : 0x000A0066), IER0, port->card);
(phy_node(port) ? 0x08002200 : 0x00080022), IER0, port->card);
}
static inline void disable_intr(port_t *port)
@ -211,15 +203,14 @@ static void sca_init_port(port_t *port)
sca_outw(HDLC_MAX_MRU, dmac + BFLL, card);
/* Chain mode, Multi-frame */
sca_out(0x14, DMR_RX(phy_node(port)), card);
sca_out(DIR_EOME | DIR_BOFE, DIR_RX(phy_node(port)),
card);
sca_out(DIR_EOME, DIR_RX(phy_node(port)), card);
/* DMA enable */
sca_out(DSR_DE, DSR_RX(phy_node(port)), card);
} else { /* Transmit */
/* Chain mode, Multi-frame */
sca_out(0x14, DMR_TX(phy_node(port)), card);
/* enable underflow interrupts */
sca_out(DIR_BOFE, DIR_TX(phy_node(port)), card);
sca_out(DIR_EOME, DIR_TX(phy_node(port)), card);
}
}
sca_set_carrier(port);
@ -502,11 +493,10 @@ static void sca_open(struct net_device *dev)
sca_out(0x3F, msci + TNR1, card); /* +1=TX DMA deactivation condition*/
/* We're using the following interrupts:
- TXINT (DMAC completed all transmissions and DCD changes)
- all DMA interrupts
- RXINTA (DCD changes only)
- DMIB (EOM - single frame transfer complete)
*/
/* MSCI TXINT and RXINTA interrupt enable */
sca_outl(IE0_TXINT | IE0_RXINTA | IE0_CDCD, msci + IE0, card);
sca_outl(IE0_RXINTA | IE0_CDCD, msci + IE0, card);
sca_out(port->tmc, msci + TMCR, card);
sca_out(port->tmc, msci + TMCT, card);