New port of FreeBSD's ahc driver

1 files changed, 63 insertions, 31 deletions

diff --git a/sys/arch/i386/isa/ahc_isa.c b/sys/arch/i386/isa/ahc_isa.c
index e504eeafa3e..7be50b00ead 100644
--- a/sys/arch/i386/isa/ahc_isa.c
+++ b/sys/arch/i386/isa/ahc_isa.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ahc_isa.c,v 1.5 2000/03/22 02:57:17 smurph Exp $	*/
+/*	$OpenBSD: ahc_isa.c,v 1.6 2002/02/16 04:36:32 smurph Exp $	*/
 /*	$NetBSD: ahc_isa.c,v 1.5 1996/10/21 22:27:39 thorpej Exp $	*/
 
 /*
@@ -83,8 +83,9 @@
 #include <dev/eisa/eisadevs.h>
 
 #include <dev/ic/aic7xxxreg.h>
-#include <dev/ic/aic7xxxvar.h>
-#include <dev/ic/smc93cx6var.h>
+#include <dev/ic/aic7xxx_openbsd.h>
+#include <dev/ic/aic7xxx_inline.h>
+#include <dev/ic/aic7xxx_93cx6.h>
 
 #ifdef DEBUG
 #define bootverbose	1
@@ -102,7 +103,6 @@
 /*
  * I/O port offsets
  */
-#define INTDEF			0x5cul	/* Interrupt Definition Register */
 #define	AHC_ISA_VID		(EISA_SLOTOFF_VID - AHC_ISA_SLOT_OFFSET)
 #define	AHC_ISA_PID		(EISA_SLOTOFF_PID - AHC_ISA_SLOT_OFFSET)
 #define	AHC_ISA_PRIMING		AHC_ISA_VID	/* enable vendor/product ID */
@@ -159,7 +159,7 @@ ahc_isa_irq(iot, ioh)
 	bus_space_write_1(iot, ioh, HCNTRL, hcntrl | PAUSE);
 
 	intdef = bus_space_read_1(iot, ioh, INTDEF);
-	switch (irq = (intdef & 0xf)) {
+	switch (irq = (intdef & VECTOR)) {
 	case 9:
 	case 10:
 	case 11:
@@ -346,7 +346,6 @@ ahc_isa_attach(parent, self, aux)
 	struct device *parent, *self;
 	void *aux;
 {
-	ahc_chip chip;
 	struct ahc_softc *ahc = (void *)self;
 	struct isa_attach_args *ia = aux;
 	bus_space_tag_t iot = ia->ia_iot;
@@ -354,10 +353,24 @@ ahc_isa_attach(parent, self, aux)
 	int irq;
 	char idstring[EISA_IDSTRINGLEN];
 	const char *model;
-	u_char channel = 'A';
-
-	ahc->sc_dmat = ia->ia_dmat;
-	chip = AHC_VL; /* We are a VL Bus Controller */  
+	u_int intdef;
+	/* 
+	 * We really don't allocate our softc, but 
+	 * we need to do the initialization. And this 
+	 * also allocates the platform_data structure.
+	 */
+	ahc_alloc(ahc, ahc->sc_dev.dv_xname);
+	
+	ahc_set_name(ahc, ahc->sc_dev.dv_xname);
+	ahc_set_unit(ahc, ahc->sc_dev.dv_unit);
+	
+	/* set dma tags */
+	ahc->parent_dmat = ia->ia_dmat;
+	ahc->buffer_dmat = ia->ia_dmat;
+        ahc->shared_data_dmat = ia->ia_dmat;
+	
+	ahc->chip = AHC_VL; /* We are a VL Bus Controller */  
+	
 	if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh))
 		panic("ahc_isa_attach: could not map slot I/O addresses");
 	if (!ahc_isa_idstring(iot, ioh, idstring))
@@ -367,16 +380,23 @@ ahc_isa_attach(parent, self, aux)
 
 	if (strcmp(idstring, "ADP7756") == 0) {
 		model = EISA_PRODUCT_ADP7756;
-		chip |= AHC_AIC7770;
 	} else if (strcmp(idstring, "ADP7757") == 0) {
 		model = EISA_PRODUCT_ADP7757;
-		chip |= AHC_AIC7770;
 	} else {
 		panic("ahc_isa_attach: Unknown device type %s", idstring);
 	}
 	printf(": %s\n", model);
-
-	ahc_construct(ahc, iot, ioh, chip, AHC_FNONE, AHC_AIC7770_FE, channel);
+	
+	ahc->channel = 'A';
+	ahc->channel_b = 'B';
+	ahc->chip = AHC_AIC7770;
+	ahc->features = AHC_AIC7770_FE;
+	ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
+	ahc->flags |= AHC_PAGESCBS;
+	
+	/* set tag and handle */
+	ahc->tag = iot;
+	ahc->bsh = ioh;
 
 #ifdef DEBUG
 	/*
@@ -387,10 +407,14 @@ ahc_isa_attach(parent, self, aux)
 	    ahc->pause & IRQMS ?  "Level Sensitive" : "Edge Triggered");
 #endif
 
-	ahc->channel = 'A';
-	ahc->channel_b = 'B';
 	if (ahc_reset(ahc) != 0)
 		return;
+	
+	/* See if we are edge triggered */
+	intdef = ahc_inb(ahc, INTDEF);
+	if ((intdef & EDGE_TRIG) != 0)
+		ahc->flags |= AHC_EDGE_INTERRUPT;
+
 	/*
 	 * Now that we know we own the resources we need, do the 
 	 * card initialization.
@@ -410,10 +434,10 @@ ahc_isa_attach(parent, self, aux)
 		u_char sblkctl;
 		u_char sblkctl_orig;
 
-		sblkctl_orig = AHC_INB(ahc, SBLKCTL);
+		sblkctl_orig = ahc_inb(ahc, SBLKCTL);
 		sblkctl = sblkctl_orig ^ AUTOFLUSHDIS;
-		AHC_OUTB(ahc, SBLKCTL, sblkctl);
-		sblkctl = AHC_INB(ahc, SBLKCTL);
+		ahc_outb(ahc, SBLKCTL, sblkctl);
+		sblkctl = ahc_inb(ahc, SBLKCTL);
 		if(sblkctl != sblkctl_orig)
 		{
 			id_string = "aic7770 >= Rev E, ";
@@ -421,7 +445,7 @@ ahc_isa_attach(parent, self, aux)
 			 * Ensure autoflush is enabled
 			 */
 			sblkctl &= ~AUTOFLUSHDIS;
-			AHC_OUTB(ahc, SBLKCTL, sblkctl);
+			ahc_outb(ahc, SBLKCTL, sblkctl);
 
 			/* Allow paging on this adapter */
 			ahc->flags |= AHC_PAGESCBS;
@@ -434,9 +458,9 @@ ahc_isa_attach(parent, self, aux)
 
 	/* Setup the FIFO threshold and the bus off time */
 	{
-		u_char hostconf = AHC_INB(ahc, HOSTCONF);
-		AHC_OUTB(ahc, BUSSPD, hostconf & DFTHRSH);
-		AHC_OUTB(ahc, BUSTIME, (hostconf << 2) & BOFF);
+		u_char hostconf = ahc_inb(ahc, HOSTCONF);
+		ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH);
+		ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF);
 	}
 
 	/*
@@ -446,26 +470,36 @@ ahc_isa_attach(parent, self, aux)
 		ahc_free(ahc);
 		return;
 	}
+	
+	/* Special func to force negotiation */
+	ahc_force_neg(ahc);
+	
+	/*
+	 * Link this softc in with all other ahc instances.
+	 */
+	ahc_softc_insert(ahc);
 
 	/*
 	 * Enable the board's BUS drivers
 	 */
-	AHC_OUTB(ahc, BCTL, ENABLE);
+	ahc_outb(ahc, BCTL, ENABLE);
 
 	/*
 	 * The IRQMS bit enables level sensitive interrupts only allow
 	 * IRQ sharing if its set.
 	 */
-	ahc->sc_ih = isa_intr_establish(ia->ia_ic, irq,
-	    ahc->pause & IRQMS ? IST_LEVEL : IST_EDGE, IPL_BIO, ahc_intr,
+	ahc->platform_data->ih = isa_intr_establish(ia->ia_ic, irq,
+	    ahc->pause & IRQMS ? IST_LEVEL : IST_EDGE, IPL_BIO, ahc_platform_intr,
 	    ahc, ahc->sc_dev.dv_xname);
-	if (ahc->sc_ih == NULL) {
+	if (ahc->platform_data->ih == NULL) {
 		printf("%s: couldn't establish interrupt\n",
 		       ahc->sc_dev.dv_xname);
 		ahc_free(ahc);
 		return;
 	}
 
+	ahc_intr_enable(ahc, TRUE);
+	
 	/* Attach sub-devices - always succeeds */
 	ahc_attach(ahc);
 }
@@ -482,8 +516,6 @@ aha2840_load_seeprom(struct ahc_softc *ahc)
 	u_int8_t  scsi_conf;
 	int	  have_seeprom;
 
-	sd.sd_tag = ahc->sc_iot;
-	sd.sd_bsh = ahc->sc_ioh;
 	sd.sd_control_offset = SEECTL_2840;
 	sd.sd_status_offset = STATUS_2840;
 	sd.sd_dataout_offset = STATUS_2840;		
@@ -497,8 +529,8 @@ aha2840_load_seeprom(struct ahc_softc *ahc)
 
 	if (bootverbose)
 		printf("%s: Reading SEEPROM...", ahc_name(ahc));
-	have_seeprom = read_seeprom(&sd,
-				    (u_int16_t *)&sc,
+	have_seeprom = read_seeprom(&sd, 
+				    (u_int16_t *)&sc, 
 				    /*start_addr*/0,
 				    sizeof(sc)/2);