diff options
| author | Krzysztof Hałasa <khc@pm.waw.pl> | 2008-07-09 19:28:45 +0200 |
|---|---|---|
| committer | Krzysztof Hałasa <khc@pm.waw.pl> | 2008-11-22 02:49:47 +0100 |
| commit | 0446c3b1e6208c6563ff9a0b22fb3b5e5e3e775c (patch) | |
| tree | dcfaa55de43edf03a5f3fbf5a8fb080693229eaa /drivers/net/wan | |
| parent | WAN: HD64572 already handles TX underruns with DMAC. (diff) | |
| download | linux-0446c3b1e6208c6563ff9a0b22fb3b5e5e3e775c.tar.xz linux-0446c3b1e6208c6563ff9a0b22fb3b5e5e3e775c.zip | |
WAN: rework HD64572 interrupts a bit.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Diffstat (limited to 'drivers/net/wan')
| -rw-r--r-- | drivers/net/wan/hd64572.c | 36 |
1 files changed, 13 insertions, 23 deletions
diff --git a/drivers/net/wan/hd64572.c b/drivers/net/wan/hd64572.c index bdb625080a16..0952e228c2c3 100644 --- a/drivers/net/wan/hd64572.c +++ b/drivers/net/wan/hd64572.c @@ -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); |