diff options
Diffstat (limited to 'sys/arch/i386')
| -rw-r--r-- | sys/arch/i386/pci/piix.c | 38 | ||||
| -rw-r--r-- | sys/arch/i386/pci/piixreg.h | 7 |
2 files changed, 35 insertions, 10 deletions
diff --git a/sys/arch/i386/pci/piix.c b/sys/arch/i386/pci/piix.c index 6aec21e7e38..7e06b6499b0 100644 --- a/sys/arch/i386/pci/piix.c +++ b/sys/arch/i386/pci/piix.c @@ -1,4 +1,4 @@ -/* $OpenBSD: piix.c,v 1.6 2002/03/14 01:26:33 millert Exp $ */ +/* $OpenBSD: piix.c,v 1.7 2003/03/28 23:12:33 mickey Exp $ */ /* $NetBSD: piix.c,v 1.1 1999/11/17 01:21:20 thorpej Exp $ */ /*- @@ -157,6 +157,13 @@ piix_getclink(v, link, clinkp) return (0); } + /* Pattern 3: configuration register offset, PIRQE# - PIRQH# */ + if (link >= 0x68 && link <= 0x6b) { + *clinkp = link - 0x64; + DPRINTF(("PIRQ %d (high register offset)\n", *clinkp)); + return (0); + } + DPRINTF(("bogus IRQ selection source\n")); return (1); } @@ -167,13 +174,19 @@ piix_get_intr(v, clink, irqp) int clink, *irqp; { struct piix_handle *ph = v; - int shift; + int shift, off; pcireg_t reg; if (PIIX_LEGAL_LINK(clink) == 0) return (1); - reg = pci_conf_read(ph->ph_pc, ph->ph_tag, PIIX_CFG_PIRQ); + off = PIIX_CFG_PIRQ; + if (clink > 3) { + off += 8; + clink -= 4; + } + + reg = pci_conf_read(ph->ph_pc, ph->ph_tag, off); shift = clink << 3; if ((reg >> shift) & PIIX_CFG_PIRQ_NONE) *irqp = I386_PCI_INTERRUPT_LINE_NO_CONNECTION; @@ -189,17 +202,23 @@ piix_set_intr(v, clink, irq) int clink, irq; { struct piix_handle *ph = v; - int shift; + int shift, off; pcireg_t reg; if (PIIX_LEGAL_LINK(clink) == 0 || PIIX_LEGAL_IRQ(irq) == 0) return (1); - reg = pci_conf_read(ph->ph_pc, ph->ph_tag, PIIX_CFG_PIRQ); + off = PIIX_CFG_PIRQ; + if (clink > 3) { + off += 8; + clink -= 4; + } + + reg = pci_conf_read(ph->ph_pc, ph->ph_tag, off); shift = clink << 3; reg &= ~((PIIX_CFG_PIRQ_NONE | PIIX_CFG_PIRQ_MASK) << shift); reg |= irq << shift; - pci_conf_write(ph->ph_pc, ph->ph_tag, PIIX_CFG_PIRQ, reg); + pci_conf_write(ph->ph_pc, ph->ph_tag, off, reg); return (0); } @@ -265,13 +284,18 @@ piix_pir_dump(ph) elcr[0] = bus_space_read_1(ph->ph_iot, ph->ph_elcr_ioh, 0); elcr[1] = bus_space_read_1(ph->ph_iot, ph->ph_elcr_ioh, 1); - for (i = 0; i < 4; i++) { + for (i = 0; i < 8; i++) { + if (i == 4) + irqs = pci_conf_read(ph->ph_pc, ph->ph_tag, + PIIX_CFG_PIRQH); + irq = PIIX_PIRQ(irqs, i); if (irq & PIIX_CFG_PIRQ_NONE) printf("PIIX PIRQ %d: irq none (0x%x)\n", i, irq); else printf("PIIX PIRQ %d: irq %d\n", i, irq); } + printf("PIIX irq:"); for (i = 0; i < 16; i++) printf(" %2d", i); diff --git a/sys/arch/i386/pci/piixreg.h b/sys/arch/i386/pci/piixreg.h index 25ec3a22c8b..8e60d3d8fb0 100644 --- a/sys/arch/i386/pci/piixreg.h +++ b/sys/arch/i386/pci/piixreg.h @@ -1,4 +1,4 @@ -/* $OpenBSD: piixreg.h,v 1.3 2000/03/28 03:37:59 mickey Exp $ */ +/* $OpenBSD: piixreg.h,v 1.4 2003/03/28 23:12:33 mickey Exp $ */ /* $NetBSD: piixreg.h,v 1.1 1999/11/17 01:21:21 thorpej Exp $ */ /* @@ -33,16 +33,17 @@ /* * PIRQ[3:0]# - PIRQ ROUTE CONTROL REGISTERS * - * PCI Configuration registers 0x60, 0x61, 0x62, 0x63 + * PCI Configuration registers 0x60-0x63, 0x68-0x6b */ -#define PIIX_LEGAL_LINK(link) ((link) >= 0 && (link) <= 3) +#define PIIX_LEGAL_LINK(link) ((link) >= 0 && (link) <= 7) #define PIIX_PIRQ_MASK 0xdef8 #define PIIX_LEGAL_IRQ(irq) ((irq) >= 0 && (irq) <= 15 && \ ((1 << (irq)) & PIIX_PIRQ_MASK) != 0) #define PIIX_CFG_PIRQ 0x60 /* PCI configuration space */ +#define PIIX_CFG_PIRQH 0x68 #define PIIX_CFG_PIRQ_NONE 0x80 #define PIIX_CFG_PIRQ_MASK 0x0f #define PIIX_PIRQ(reg, x) (((reg) >> ((x) << 3)) & 0xff) |