mirror of
https://github.com/freebsd/freebsd-src
synced 2024-09-24 02:34:59 +00:00
Converted the ICU-level interrupt tests (3, 5 and 8) in sioprobe() into
a test of the irq number, and made failure of this test non-fatal. Removed related unused complications for the APIC_IO case. Removed the no-test3 flag. Deverbosified the failure messages for the other tests. Removed the per-port verbose flag - just use the general verbose flag.
This commit is contained in:
Bruce Evans
parent
218a1b63d6
commit
cd55b8f46c
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=36492
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@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)isa.c 7.2 (Berkeley) 5/13/91
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* $Id: intr_machdep.c,v 1.9 1998/03/03 22:56:29 tegge Exp $
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* $Id: intr_machdep.c,v 1.10 1998/05/17 21:15:18 tegge Exp $
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*/
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#include "opt_auto_eoi.h"
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@ -268,57 +268,20 @@ isa_strayintr(d)
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}
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/*
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* Return nonzero if a (masked) irq is pending for a given device.
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* Return a bitmap of the current interrupt requests. This is 8259-specific
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* and is only suitable for use at probe time.
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*/
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#if defined(APIC_IO)
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int
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isa_irq_pending(dvp)
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struct isa_device *dvp;
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intrmask_t
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isa_irq_pending()
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{
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#ifdef FAST_HI
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/* XXX not quite right for >1 IO APIC yet */
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if (dvp->id_ri_flags & RI_FAST)
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/* read APIC IRR containing the FAST INTerrupts */
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return ((lapic.irr3 & 0x00ffffff)
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& (u_int32_t)dvp->id_irq) ? 1 : 0;
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else
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#endif /* FAST_HI */
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/* read APIC IRR containing the SLOW INTerrupts */
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return ((lapic.irr1 & 0x00ffffff)
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& (u_int32_t)dvp->id_irq) ? 1 : 0;
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u_char irr1;
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u_char irr2;
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irr1 = inb(IO_ICU1);
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irr2 = inb(IO_ICU2);
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return ((irr2 << 8) | irr1);
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}
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/*
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* an 8259 specific routine,
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* for use by boot probes in certain device drivers.
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*/
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int
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icu_irq_pending(dvp)
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struct isa_device *dvp;
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{
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unsigned id_irq;
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id_irq = dvp->id_irq;
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if (id_irq & 0xff)
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return (inb(IO_ICU1) & id_irq);
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return (inb(IO_ICU2) & (id_irq >> 8));
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}
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#else /* APIC_IO */
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int
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isa_irq_pending(dvp)
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struct isa_device *dvp;
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{
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unsigned id_irq;
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id_irq = dvp->id_irq;
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if (id_irq & 0xff)
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return (inb(IO_ICU1) & id_irq);
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return (inb(IO_ICU2) & (id_irq >> 8));
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}
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#endif /* APIC_IO */
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int
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update_intr_masks(void)
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{
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)isa_device.h 7.1 (Berkeley) 5/9/91
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* $Id: intr_machdep.h,v 1.10 1998/03/03 20:55:24 tegge Exp $
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* $Id: intr_machdep.h,v 1.11 1998/03/03 22:56:30 tegge Exp $
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*/
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#ifndef _I386_ISA_INTR_MACHDEP_H_
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@ -190,10 +190,7 @@ inthand_t
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struct isa_device;
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void isa_defaultirq __P((void));
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int isa_irq_pending __P((struct isa_device *dvp));
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#if defined(SMP) || defined(APIC_IO)
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int icu_irq_pending __P((struct isa_device *dvp));
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#endif
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intrmask_t isa_irq_pending __P((void));
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int isa_nmi __P((int cd));
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void update_intrname __P((int intr, int device_id));
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int icu_setup __P((int intr, inthand2_t *func, void *arg,
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@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)isa.c 7.2 (Berkeley) 5/13/91
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* $Id: intr_machdep.c,v 1.9 1998/03/03 22:56:29 tegge Exp $
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* $Id: intr_machdep.c,v 1.10 1998/05/17 21:15:18 tegge Exp $
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*/
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#include "opt_auto_eoi.h"
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@ -268,57 +268,20 @@ isa_strayintr(d)
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}
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/*
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* Return nonzero if a (masked) irq is pending for a given device.
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* Return a bitmap of the current interrupt requests. This is 8259-specific
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* and is only suitable for use at probe time.
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*/
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#if defined(APIC_IO)
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int
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isa_irq_pending(dvp)
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struct isa_device *dvp;
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intrmask_t
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isa_irq_pending()
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{
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#ifdef FAST_HI
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/* XXX not quite right for >1 IO APIC yet */
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if (dvp->id_ri_flags & RI_FAST)
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/* read APIC IRR containing the FAST INTerrupts */
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return ((lapic.irr3 & 0x00ffffff)
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& (u_int32_t)dvp->id_irq) ? 1 : 0;
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else
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#endif /* FAST_HI */
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/* read APIC IRR containing the SLOW INTerrupts */
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return ((lapic.irr1 & 0x00ffffff)
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& (u_int32_t)dvp->id_irq) ? 1 : 0;
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u_char irr1;
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u_char irr2;
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irr1 = inb(IO_ICU1);
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irr2 = inb(IO_ICU2);
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return ((irr2 << 8) | irr1);
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}
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/*
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* an 8259 specific routine,
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* for use by boot probes in certain device drivers.
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*/
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int
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icu_irq_pending(dvp)
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struct isa_device *dvp;
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{
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unsigned id_irq;
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id_irq = dvp->id_irq;
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if (id_irq & 0xff)
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return (inb(IO_ICU1) & id_irq);
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return (inb(IO_ICU2) & (id_irq >> 8));
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}
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#else /* APIC_IO */
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int
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isa_irq_pending(dvp)
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struct isa_device *dvp;
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{
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unsigned id_irq;
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id_irq = dvp->id_irq;
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if (id_irq & 0xff)
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return (inb(IO_ICU1) & id_irq);
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return (inb(IO_ICU2) & (id_irq >> 8));
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}
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#endif /* APIC_IO */
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int
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update_intr_masks(void)
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{
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)com.c 7.5 (Berkeley) 5/16/91
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* $Id: sio.c,v 1.201 1998/05/13 07:26:55 phk Exp $
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* $Id: sio.c,v 1.202 1998/05/20 06:46:58 phk Exp $
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*/
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#include "opt_comconsole.h"
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@ -104,16 +104,6 @@
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#define enable_intr() COM_ENABLE_INTR()
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#endif /* SMP */
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#ifdef APIC_IO
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/*
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* INTs are masked in the (global) IO APIC,
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* but the IRR register is in each LOCAL APIC,
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* so we would have to unmask the INT to be able to "see INT pending".
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* So instead we just look in the 8259 ICU.
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*/
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#define isa_irq_pending icu_irq_pending
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#endif /* APIC_IO */
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#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
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#define RB_I_HIGH_WATER (TTYHOG - 2 * RS_IBUFSIZE)
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#define RS_IBUFSIZE 256
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@ -140,8 +130,6 @@
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#define COM_LLCONSOLE(dev) ((dev)->id_flags & 0x40)
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#define COM_LOSESOUTINTS(dev) ((dev)->id_flags & 0x08)
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#define COM_NOFIFO(dev) ((dev)->id_flags & 0x02)
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#define COM_VERBOSE(dev) ((dev)->id_flags & 0x80)
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#define COM_NOTST3(dev) ((dev)->id_flags & 0x10000)
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#define COM_ST16650A(dev) ((dev)->id_flags & 0x20000)
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#define COM_C_NOPROBE (0x40000)
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#define COM_NOPROBE(dev) ((dev)->id_flags & COM_C_NOPROBE)
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@ -587,6 +575,8 @@ sioprobe(dev)
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int fn;
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struct isa_device *idev;
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Port_t iobase;
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intrmask_t irqmap[4];
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intrmask_t irqs;
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u_char mcr_image;
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int result;
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struct isa_device *xdev;
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@ -678,6 +668,8 @@ sioprobe(dev)
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/* EXTRA DELAY? */
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outb(iobase + com_mcr, mcr_image);
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outb(iobase + com_ier, 0);
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DELAY(1000); /* XXX */
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irqmap[0] = isa_irq_pending();
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/*
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* Attempt to set loopback mode so that we can send a null byte
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@ -759,12 +751,10 @@ sioprobe(dev)
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failures[1] = inb(iobase + com_ier) - IER_ETXRDY;
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failures[2] = inb(iobase + com_mcr) - mcr_image;
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DELAY(10000); /* Some internal modems need this time */
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if (idev->id_irq != 0 && !COM_NOTST3(idev))
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failures[3] = isa_irq_pending(idev) ? 0 : 1;
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irqmap[1] = isa_irq_pending();
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failures[4] = (inb(iobase + com_iir) & IIR_IMASK) - IIR_TXRDY;
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DELAY(1000); /* XXX */
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if (idev->id_irq != 0)
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failures[5] = isa_irq_pending(idev) ? 1 : 0;
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irqmap[2] = isa_irq_pending();
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failures[6] = (inb(iobase + com_iir) & IIR_IMASK) - IIR_NOPEND;
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/*
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@ -780,20 +770,35 @@ sioprobe(dev)
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outb(iobase + com_cfcr, CFCR_8BITS); /* dummy to avoid bus echo */
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failures[7] = inb(iobase + com_ier);
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DELAY(1000); /* XXX */
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if (idev->id_irq != 0)
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failures[8] = isa_irq_pending(idev) ? 1 : 0;
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irqmap[3] = isa_irq_pending();
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failures[9] = (inb(iobase + com_iir) & IIR_IMASK) - IIR_NOPEND;
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enable_intr();
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/* XXX the magic mask is to discard transient (clock) irqs. */
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irqs = irqmap[1] & ~irqmap[0] & ~0x0105;
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if (irqs != idev->id_irq)
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printf(
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"sio%d: probed irq %d does not match configured irq %d\n",
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ffs(irqs) - 1, ffs(idev->id_irq) - 1);
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if (bootverbose)
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printf("sio%d: irq maps: %04x %04x %04x %04x\n",
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dev->id_unit, irqmap[0], irqmap[1], irqmap[2], irqmap[3]);
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result = IO_COMSIZE;
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for (fn = 0; fn < sizeof failures; ++fn)
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if (failures[fn]) {
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outb(iobase + com_mcr, 0);
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result = 0;
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if (COM_VERBOSE(dev))
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printf("sio%d: probe test %d failed\n",
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dev->id_unit, fn);
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if (bootverbose) {
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printf("sio%d: probe failed test(s):",
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dev->id_unit);
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for (fn = 0; fn < sizeof failures; ++fn)
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if (failures[fn])
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printf(" %d", fn);
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printf("\n");
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}
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break;
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}
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return (result);
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}
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|
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|
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@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)isa.c 7.2 (Berkeley) 5/13/91
|
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* $Id: intr_machdep.c,v 1.9 1998/03/03 22:56:29 tegge Exp $
|
||||
* $Id: intr_machdep.c,v 1.10 1998/05/17 21:15:18 tegge Exp $
|
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*/
|
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|
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#include "opt_auto_eoi.h"
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|
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@ -268,57 +268,20 @@ isa_strayintr(d)
|
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}
|
||||
|
||||
/*
|
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* Return nonzero if a (masked) irq is pending for a given device.
|
||||
* Return a bitmap of the current interrupt requests. This is 8259-specific
|
||||
* and is only suitable for use at probe time.
|
||||
*/
|
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#if defined(APIC_IO)
|
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|
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int
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isa_irq_pending(dvp)
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struct isa_device *dvp;
|
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intrmask_t
|
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isa_irq_pending()
|
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{
|
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#ifdef FAST_HI
|
||||
/* XXX not quite right for >1 IO APIC yet */
|
||||
if (dvp->id_ri_flags & RI_FAST)
|
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/* read APIC IRR containing the FAST INTerrupts */
|
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return ((lapic.irr3 & 0x00ffffff)
|
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& (u_int32_t)dvp->id_irq) ? 1 : 0;
|
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else
|
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#endif /* FAST_HI */
|
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/* read APIC IRR containing the SLOW INTerrupts */
|
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return ((lapic.irr1 & 0x00ffffff)
|
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& (u_int32_t)dvp->id_irq) ? 1 : 0;
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u_char irr1;
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u_char irr2;
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irr1 = inb(IO_ICU1);
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irr2 = inb(IO_ICU2);
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return ((irr2 << 8) | irr1);
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}
|
||||
|
||||
/*
|
||||
* an 8259 specific routine,
|
||||
* for use by boot probes in certain device drivers.
|
||||
*/
|
||||
int
|
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icu_irq_pending(dvp)
|
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struct isa_device *dvp;
|
||||
{
|
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unsigned id_irq;
|
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id_irq = dvp->id_irq;
|
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if (id_irq & 0xff)
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return (inb(IO_ICU1) & id_irq);
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return (inb(IO_ICU2) & (id_irq >> 8));
|
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}
|
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|
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#else /* APIC_IO */
|
||||
|
||||
int
|
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isa_irq_pending(dvp)
|
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struct isa_device *dvp;
|
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{
|
||||
unsigned id_irq;
|
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id_irq = dvp->id_irq;
|
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if (id_irq & 0xff)
|
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return (inb(IO_ICU1) & id_irq);
|
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return (inb(IO_ICU2) & (id_irq >> 8));
|
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}
|
||||
|
||||
#endif /* APIC_IO */
|
||||
|
||||
int
|
||||
update_intr_masks(void)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -31,7 +31,7 @@
|
|||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)isa_device.h 7.1 (Berkeley) 5/9/91
|
||||
* $Id: intr_machdep.h,v 1.10 1998/03/03 20:55:24 tegge Exp $
|
||||
* $Id: intr_machdep.h,v 1.11 1998/03/03 22:56:30 tegge Exp $
|
||||
*/
|
||||
|
||||
#ifndef _I386_ISA_INTR_MACHDEP_H_
|
||||
|
|
@ -190,10 +190,7 @@ inthand_t
|
|||
struct isa_device;
|
||||
|
||||
void isa_defaultirq __P((void));
|
||||
int isa_irq_pending __P((struct isa_device *dvp));
|
||||
#if defined(SMP) || defined(APIC_IO)
|
||||
int icu_irq_pending __P((struct isa_device *dvp));
|
||||
#endif
|
||||
intrmask_t isa_irq_pending __P((void));
|
||||
int isa_nmi __P((int cd));
|
||||
void update_intrname __P((int intr, int device_id));
|
||||
int icu_setup __P((int intr, inthand2_t *func, void *arg,
|
||||
|
|
|
|||
|
|
@ -34,7 +34,7 @@
|
|||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)isa.c 7.2 (Berkeley) 5/13/91
|
||||
* $Id: intr_machdep.c,v 1.9 1998/03/03 22:56:29 tegge Exp $
|
||||
* $Id: intr_machdep.c,v 1.10 1998/05/17 21:15:18 tegge Exp $
|
||||
*/
|
||||
|
||||
#include "opt_auto_eoi.h"
|
||||
|
|
@ -268,57 +268,20 @@ isa_strayintr(d)
|
|||
}
|
||||
|
||||
/*
|
||||
* Return nonzero if a (masked) irq is pending for a given device.
|
||||
* Return a bitmap of the current interrupt requests. This is 8259-specific
|
||||
* and is only suitable for use at probe time.
|
||||
*/
|
||||
#if defined(APIC_IO)
|
||||
|
||||
int
|
||||
isa_irq_pending(dvp)
|
||||
struct isa_device *dvp;
|
||||
intrmask_t
|
||||
isa_irq_pending()
|
||||
{
|
||||
#ifdef FAST_HI
|
||||
/* XXX not quite right for >1 IO APIC yet */
|
||||
if (dvp->id_ri_flags & RI_FAST)
|
||||
/* read APIC IRR containing the FAST INTerrupts */
|
||||
return ((lapic.irr3 & 0x00ffffff)
|
||||
& (u_int32_t)dvp->id_irq) ? 1 : 0;
|
||||
else
|
||||
#endif /* FAST_HI */
|
||||
/* read APIC IRR containing the SLOW INTerrupts */
|
||||
return ((lapic.irr1 & 0x00ffffff)
|
||||
& (u_int32_t)dvp->id_irq) ? 1 : 0;
|
||||
u_char irr1;
|
||||
u_char irr2;
|
||||
|
||||
irr1 = inb(IO_ICU1);
|
||||
irr2 = inb(IO_ICU2);
|
||||
return ((irr2 << 8) | irr1);
|
||||
}
|
||||
|
||||
/*
|
||||
* an 8259 specific routine,
|
||||
* for use by boot probes in certain device drivers.
|
||||
*/
|
||||
int
|
||||
icu_irq_pending(dvp)
|
||||
struct isa_device *dvp;
|
||||
{
|
||||
unsigned id_irq;
|
||||
id_irq = dvp->id_irq;
|
||||
if (id_irq & 0xff)
|
||||
return (inb(IO_ICU1) & id_irq);
|
||||
return (inb(IO_ICU2) & (id_irq >> 8));
|
||||
}
|
||||
|
||||
#else /* APIC_IO */
|
||||
|
||||
int
|
||||
isa_irq_pending(dvp)
|
||||
struct isa_device *dvp;
|
||||
{
|
||||
unsigned id_irq;
|
||||
id_irq = dvp->id_irq;
|
||||
if (id_irq & 0xff)
|
||||
return (inb(IO_ICU1) & id_irq);
|
||||
return (inb(IO_ICU2) & (id_irq >> 8));
|
||||
}
|
||||
|
||||
#endif /* APIC_IO */
|
||||
|
||||
int
|
||||
update_intr_masks(void)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -31,7 +31,7 @@
|
|||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
|
||||
* $Id: sio.c,v 1.201 1998/05/13 07:26:55 phk Exp $
|
||||
* $Id: sio.c,v 1.202 1998/05/20 06:46:58 phk Exp $
|
||||
*/
|
||||
|
||||
#include "opt_comconsole.h"
|
||||
|
|
@ -104,16 +104,6 @@
|
|||
#define enable_intr() COM_ENABLE_INTR()
|
||||
#endif /* SMP */
|
||||
|
||||
#ifdef APIC_IO
|
||||
/*
|
||||
* INTs are masked in the (global) IO APIC,
|
||||
* but the IRR register is in each LOCAL APIC,
|
||||
* so we would have to unmask the INT to be able to "see INT pending".
|
||||
* So instead we just look in the 8259 ICU.
|
||||
*/
|
||||
#define isa_irq_pending icu_irq_pending
|
||||
#endif /* APIC_IO */
|
||||
|
||||
#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
|
||||
#define RB_I_HIGH_WATER (TTYHOG - 2 * RS_IBUFSIZE)
|
||||
#define RS_IBUFSIZE 256
|
||||
|
|
@ -140,8 +130,6 @@
|
|||
#define COM_LLCONSOLE(dev) ((dev)->id_flags & 0x40)
|
||||
#define COM_LOSESOUTINTS(dev) ((dev)->id_flags & 0x08)
|
||||
#define COM_NOFIFO(dev) ((dev)->id_flags & 0x02)
|
||||
#define COM_VERBOSE(dev) ((dev)->id_flags & 0x80)
|
||||
#define COM_NOTST3(dev) ((dev)->id_flags & 0x10000)
|
||||
#define COM_ST16650A(dev) ((dev)->id_flags & 0x20000)
|
||||
#define COM_C_NOPROBE (0x40000)
|
||||
#define COM_NOPROBE(dev) ((dev)->id_flags & COM_C_NOPROBE)
|
||||
|
|
@ -587,6 +575,8 @@ sioprobe(dev)
|
|||
int fn;
|
||||
struct isa_device *idev;
|
||||
Port_t iobase;
|
||||
intrmask_t irqmap[4];
|
||||
intrmask_t irqs;
|
||||
u_char mcr_image;
|
||||
int result;
|
||||
struct isa_device *xdev;
|
||||
|
|
@ -678,6 +668,8 @@ sioprobe(dev)
|
|||
/* EXTRA DELAY? */
|
||||
outb(iobase + com_mcr, mcr_image);
|
||||
outb(iobase + com_ier, 0);
|
||||
DELAY(1000); /* XXX */
|
||||
irqmap[0] = isa_irq_pending();
|
||||
|
||||
/*
|
||||
* Attempt to set loopback mode so that we can send a null byte
|
||||
|
|
@ -759,12 +751,10 @@ sioprobe(dev)
|
|||
failures[1] = inb(iobase + com_ier) - IER_ETXRDY;
|
||||
failures[2] = inb(iobase + com_mcr) - mcr_image;
|
||||
DELAY(10000); /* Some internal modems need this time */
|
||||
if (idev->id_irq != 0 && !COM_NOTST3(idev))
|
||||
failures[3] = isa_irq_pending(idev) ? 0 : 1;
|
||||
irqmap[1] = isa_irq_pending();
|
||||
failures[4] = (inb(iobase + com_iir) & IIR_IMASK) - IIR_TXRDY;
|
||||
DELAY(1000); /* XXX */
|
||||
if (idev->id_irq != 0)
|
||||
failures[5] = isa_irq_pending(idev) ? 1 : 0;
|
||||
irqmap[2] = isa_irq_pending();
|
||||
failures[6] = (inb(iobase + com_iir) & IIR_IMASK) - IIR_NOPEND;
|
||||
|
||||
/*
|
||||
|
|
@ -780,20 +770,35 @@ sioprobe(dev)
|
|||
outb(iobase + com_cfcr, CFCR_8BITS); /* dummy to avoid bus echo */
|
||||
failures[7] = inb(iobase + com_ier);
|
||||
DELAY(1000); /* XXX */
|
||||
if (idev->id_irq != 0)
|
||||
failures[8] = isa_irq_pending(idev) ? 1 : 0;
|
||||
irqmap[3] = isa_irq_pending();
|
||||
failures[9] = (inb(iobase + com_iir) & IIR_IMASK) - IIR_NOPEND;
|
||||
|
||||
enable_intr();
|
||||
|
||||
/* XXX the magic mask is to discard transient (clock) irqs. */
|
||||
irqs = irqmap[1] & ~irqmap[0] & ~0x0105;
|
||||
if (irqs != idev->id_irq)
|
||||
printf(
|
||||
"sio%d: probed irq %d does not match configured irq %d\n",
|
||||
ffs(irqs) - 1, ffs(idev->id_irq) - 1);
|
||||
if (bootverbose)
|
||||
printf("sio%d: irq maps: %04x %04x %04x %04x\n",
|
||||
dev->id_unit, irqmap[0], irqmap[1], irqmap[2], irqmap[3]);
|
||||
|
||||
result = IO_COMSIZE;
|
||||
for (fn = 0; fn < sizeof failures; ++fn)
|
||||
if (failures[fn]) {
|
||||
outb(iobase + com_mcr, 0);
|
||||
result = 0;
|
||||
if (COM_VERBOSE(dev))
|
||||
printf("sio%d: probe test %d failed\n",
|
||||
dev->id_unit, fn);
|
||||
if (bootverbose) {
|
||||
printf("sio%d: probe failed test(s):",
|
||||
dev->id_unit);
|
||||
for (fn = 0; fn < sizeof failures; ++fn)
|
||||
if (failures[fn])
|
||||
printf(" %d", fn);
|
||||
printf("\n");
|
||||
}
|
||||
break;
|
||||
}
|
||||
return (result);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -31,7 +31,7 @@
|
|||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
|
||||
* $Id: sio.c,v 1.201 1998/05/13 07:26:55 phk Exp $
|
||||
* $Id: sio.c,v 1.202 1998/05/20 06:46:58 phk Exp $
|
||||
*/
|
||||
|
||||
#include "opt_comconsole.h"
|
||||
|
|
@ -104,16 +104,6 @@
|
|||
#define enable_intr() COM_ENABLE_INTR()
|
||||
#endif /* SMP */
|
||||
|
||||
#ifdef APIC_IO
|
||||
/*
|
||||
* INTs are masked in the (global) IO APIC,
|
||||
* but the IRR register is in each LOCAL APIC,
|
||||
* so we would have to unmask the INT to be able to "see INT pending".
|
||||
* So instead we just look in the 8259 ICU.
|
||||
*/
|
||||
#define isa_irq_pending icu_irq_pending
|
||||
#endif /* APIC_IO */
|
||||
|
||||
#define LOTS_OF_EVENTS 64 /* helps separate urgent events from input */
|
||||
#define RB_I_HIGH_WATER (TTYHOG - 2 * RS_IBUFSIZE)
|
||||
#define RS_IBUFSIZE 256
|
||||
|
|
@ -140,8 +130,6 @@
|
|||
#define COM_LLCONSOLE(dev) ((dev)->id_flags & 0x40)
|
||||
#define COM_LOSESOUTINTS(dev) ((dev)->id_flags & 0x08)
|
||||
#define COM_NOFIFO(dev) ((dev)->id_flags & 0x02)
|
||||
#define COM_VERBOSE(dev) ((dev)->id_flags & 0x80)
|
||||
#define COM_NOTST3(dev) ((dev)->id_flags & 0x10000)
|
||||
#define COM_ST16650A(dev) ((dev)->id_flags & 0x20000)
|
||||
#define COM_C_NOPROBE (0x40000)
|
||||
#define COM_NOPROBE(dev) ((dev)->id_flags & COM_C_NOPROBE)
|
||||
|
|
@ -587,6 +575,8 @@ sioprobe(dev)
|
|||
int fn;
|
||||
struct isa_device *idev;
|
||||
Port_t iobase;
|
||||
intrmask_t irqmap[4];
|
||||
intrmask_t irqs;
|
||||
u_char mcr_image;
|
||||
int result;
|
||||
struct isa_device *xdev;
|
||||
|
|
@ -678,6 +668,8 @@ sioprobe(dev)
|
|||
/* EXTRA DELAY? */
|
||||
outb(iobase + com_mcr, mcr_image);
|
||||
outb(iobase + com_ier, 0);
|
||||
DELAY(1000); /* XXX */
|
||||
irqmap[0] = isa_irq_pending();
|
||||
|
||||
/*
|
||||
* Attempt to set loopback mode so that we can send a null byte
|
||||
|
|
@ -759,12 +751,10 @@ sioprobe(dev)
|
|||
failures[1] = inb(iobase + com_ier) - IER_ETXRDY;
|
||||
failures[2] = inb(iobase + com_mcr) - mcr_image;
|
||||
DELAY(10000); /* Some internal modems need this time */
|
||||
if (idev->id_irq != 0 && !COM_NOTST3(idev))
|
||||
failures[3] = isa_irq_pending(idev) ? 0 : 1;
|
||||
irqmap[1] = isa_irq_pending();
|
||||
failures[4] = (inb(iobase + com_iir) & IIR_IMASK) - IIR_TXRDY;
|
||||
DELAY(1000); /* XXX */
|
||||
if (idev->id_irq != 0)
|
||||
failures[5] = isa_irq_pending(idev) ? 1 : 0;
|
||||
irqmap[2] = isa_irq_pending();
|
||||
failures[6] = (inb(iobase + com_iir) & IIR_IMASK) - IIR_NOPEND;
|
||||
|
||||
/*
|
||||
|
|
@ -780,20 +770,35 @@ sioprobe(dev)
|
|||
outb(iobase + com_cfcr, CFCR_8BITS); /* dummy to avoid bus echo */
|
||||
failures[7] = inb(iobase + com_ier);
|
||||
DELAY(1000); /* XXX */
|
||||
if (idev->id_irq != 0)
|
||||
failures[8] = isa_irq_pending(idev) ? 1 : 0;
|
||||
irqmap[3] = isa_irq_pending();
|
||||
failures[9] = (inb(iobase + com_iir) & IIR_IMASK) - IIR_NOPEND;
|
||||
|
||||
enable_intr();
|
||||
|
||||
/* XXX the magic mask is to discard transient (clock) irqs. */
|
||||
irqs = irqmap[1] & ~irqmap[0] & ~0x0105;
|
||||
if (irqs != idev->id_irq)
|
||||
printf(
|
||||
"sio%d: probed irq %d does not match configured irq %d\n",
|
||||
ffs(irqs) - 1, ffs(idev->id_irq) - 1);
|
||||
if (bootverbose)
|
||||
printf("sio%d: irq maps: %04x %04x %04x %04x\n",
|
||||
dev->id_unit, irqmap[0], irqmap[1], irqmap[2], irqmap[3]);
|
||||
|
||||
result = IO_COMSIZE;
|
||||
for (fn = 0; fn < sizeof failures; ++fn)
|
||||
if (failures[fn]) {
|
||||
outb(iobase + com_mcr, 0);
|
||||
result = 0;
|
||||
if (COM_VERBOSE(dev))
|
||||
printf("sio%d: probe test %d failed\n",
|
||||
dev->id_unit, fn);
|
||||
if (bootverbose) {
|
||||
printf("sio%d: probe failed test(s):",
|
||||
dev->id_unit);
|
||||
for (fn = 0; fn < sizeof failures; ++fn)
|
||||
if (failures[fn])
|
||||
printf(" %d", fn);
|
||||
printf("\n");
|
||||
}
|
||||
break;
|
||||
}
|
||||
return (result);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue