static int
bt_isa_alloc_resources(device_t dev, u_long portstart, u_long portend)
{
int rid;
struct resource *port;
struct resource *irq;
struct resource *drq;
rid = 0;
port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
portstart, portend, BT_NREGS, RF_ACTIVE);
if (!port)
return (ENOMEM);
if (isa_get_irq(dev) != -1) {
rid = 0;
irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
if (!irq) {
if (port)
bus_release_resource(dev, SYS_RES_IOPORT,
0, port);
return (ENOMEM);
}
} else
irq = NULL;
if (isa_get_drq(dev) != -1) {
rid = 0;
drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid, RF_ACTIVE);
if (!drq) {
if (port)
bus_release_resource(dev, SYS_RES_IOPORT,
0, port);
if (irq)
bus_release_resource(dev, SYS_RES_IRQ,
0, irq);
return (ENOMEM);
}
} else
drq = NULL;
bt_init_softc(dev, port, irq, drq);
return (0);
}
static int
aic_isa_probe(device_t dev)
{
struct aic_isa_softc *sc = device_get_softc(dev);
struct aic_softc *aic = &sc->sc_aic;
int numports, i;
u_int port, *ports;
u_int8_t porta;
if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO)
return (ENXIO);
port = isa_get_port(dev);
if (port != -1) {
ports = &port;
numports = 1;
} else {
ports = aic_isa_ports;
numports = AIC_ISA_NUMPORTS;
}
for (i = 0; i < numports; i++) {
if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i],
AIC_ISA_PORTSIZE))
continue;
if (aic_isa_alloc_resources(dev))
continue;
if (!aic_probe(aic)) {
aic_isa_release_resources(dev);
break;
}
aic_isa_release_resources(dev);
}
if (i == numports)
return (ENXIO);
porta = aic_inb(aic, PORTA);
if (isa_get_irq(dev) == -1)
bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1);
if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1)
bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1);
device_set_desc(dev, "Adaptec 6260/6360 SCSI controller");
return (0);
}
static int
aic_isa_alloc_resources(device_t dev)
{
struct aic_isa_softc *sc = device_get_softc(dev);
int rid;
sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
rid = 0;
sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0ul, ~0ul, AIC_ISA_PORTSIZE, RF_ACTIVE);
if (!sc->sc_port) {
device_printf(dev, "I/O port allocation failed\n");
return (ENOMEM);
}
if (isa_get_irq(dev) != -1) {
rid = 0;
sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_ACTIVE);
if (!sc->sc_irq) {
device_printf(dev, "IRQ allocation failed\n");
aic_isa_release_resources(dev);
return (ENOMEM);
}
}
if (isa_get_drq(dev) != -1) {
rid = 0;
sc->sc_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
RF_ACTIVE);
if (!sc->sc_drq) {
device_printf(dev, "DRQ allocation failed\n");
aic_isa_release_resources(dev);
return (ENOMEM);
}
}
sc->sc_aic.dev = dev;
sc->sc_aic.unit = device_get_unit(dev);
sc->sc_aic.tag = rman_get_bustag(sc->sc_port);
sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port);
return (0);
}
static int
aic_isa_alloc_resources(device_t dev)
{
struct aic_isa_softc *sc = device_get_softc(dev);
int rid;
sc->sc_port = sc->sc_irq = sc->sc_drq = NULL;
rid = 0;
sc->sc_port = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &rid,
AIC_ISA_PORTSIZE, RF_ACTIVE);
if (!sc->sc_port) {
device_printf(dev, "I/O port allocation failed\n");
return (ENOMEM);
}
if (isa_get_irq(dev) != -1) {
rid = 0;
sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_ACTIVE);
if (!sc->sc_irq) {
device_printf(dev, "IRQ allocation failed\n");
aic_isa_release_resources(dev);
return (ENOMEM);
}
}
if (isa_get_drq(dev) != -1) {
rid = 0;
sc->sc_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
RF_ACTIVE);
if (!sc->sc_drq) {
device_printf(dev, "DRQ allocation failed\n");
aic_isa_release_resources(dev);
return (ENOMEM);
}
}
sc->sc_aic.dev = dev;
sc->sc_aic.res = sc->sc_port;
mtx_init(&sc->sc_aic.lock, "aic", NULL, MTX_DEF);
return (0);
}
/*
* Attach all the sub-devices we can find
*/
static int
bt_isa_attach(device_t dev)
{
struct bt_softc *bt = device_get_softc(dev);
bus_dma_filter_t *filter;
void *filter_arg;
bus_addr_t lowaddr;
int error, drq;
/* Initialise softc */
error = bt_isa_alloc_resources(dev, 0, ~0);
if (error) {
device_printf(dev, "can't allocate resources in bt_isa_attach\n");
return error;
}
/* Program the DMA channel for external control */
if ((drq = isa_get_drq(dev)) != -1)
isa_dmacascade(drq);
/* Allocate our parent dmatag */
filter = NULL;
filter_arg = NULL;
lowaddr = BUS_SPACE_MAXADDR_24BIT;
/* XXX Should be a child of the ISA bus dma tag */
if (bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/1, /*boundary*/0,
lowaddr, /*highaddr*/BUS_SPACE_MAXADDR,
filter, filter_arg,
/*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
/*nsegments*/BUS_SPACE_UNRESTRICTED,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &bt->parent_dmat) != 0) {
bt_isa_release_resources(dev);
return (ENOMEM);
}
error = bt_init(dev);
if (error) {
bt_isa_release_resources(dev);
return (ENOMEM);
}
if (lowaddr != BUS_SPACE_MAXADDR_32BIT) {
/* DMA tag for our sense buffers */
if (bus_dma_tag_create(bt->parent_dmat, /*alignment*/1,
/*boundary*/0,
/*lowaddr*/BUS_SPACE_MAXADDR,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
bt->max_ccbs
* sizeof(struct scsi_sense_data),
/*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, &bt->sense_dmat) != 0) {
bt_isa_release_resources(dev);
return (ENOMEM);
}
bt->init_level++;
/* Allocation of sense buffers */
if (bus_dmamem_alloc(bt->sense_dmat,
(void *)&bt->sense_buffers,
BUS_DMA_NOWAIT, &bt->sense_dmamap) != 0) {
bt_isa_release_resources(dev);
return (ENOMEM);
}
bt->init_level++;
/* And permanently map them */
bus_dmamap_load(bt->sense_dmat, bt->sense_dmamap,
bt->sense_buffers,
bt->max_ccbs * sizeof(*bt->sense_buffers),
btmapsensebuffers, bt, /*flags*/0);
bt->init_level++;
}
error = bt_attach(dev);
if (error) {
bt_isa_release_resources(dev);
return (error);
}
return (0);
}
/*
* Attach all the sub-devices we can find
*/
static int
bt_isa_attach(device_t dev)
{
struct bt_softc *bt = device_get_softc(dev);
bus_dma_filter_t *filter;
void *filter_arg;
bus_addr_t lowaddr;
int error, drq;
/* Initialise softc */
error = bt_isa_alloc_resources(dev, 0, ~0);
if (error) {
device_printf(dev, "can't allocate resources in bt_isa_attach\n");
return error;
}
/* Program the DMA channel for external control */
if ((drq = isa_get_drq(dev)) != -1)
isa_dmacascade(drq);
/* Allocate our parent dmatag */
filter = NULL;
filter_arg = NULL;
lowaddr = BUS_SPACE_MAXADDR_24BIT;
if (bt->model[0] == '4') {
/*
* This is a VL adapter. Typically, VL devices have access
* to the full 32bit address space. On BT-445S adapters
* prior to revision E, there is a hardware bug that causes
* corruption of transfers to/from addresses in the range of
* the BIOS modulo 16MB. The only properly functioning
* BT-445S Host Adapters have firmware version 3.37.
* If we encounter one of these adapters and the BIOS is
* installed, install a filter function for our bus_dma_map
* that will catch these accesses and bounce them to a safe
* region of memory.
*/
if (bt->bios_addr != 0
&& strcmp(bt->model, "445S") == 0
&& strcmp(bt->firmware_ver, "3.37") < 0) {
filter = btvlbouncefilter;
filter_arg = bt;
} else {
lowaddr = BUS_SPACE_MAXADDR_32BIT;
}
}
/* XXX Should be a child of the ISA or VL bus dma tag */
if (bus_dma_tag_create( /* parent */ bus_get_dma_tag(dev),
/* alignemnt */ 1,
/* boundary */ 0,
/* lowaddr */ lowaddr,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ filter,
/* filterarg */ filter_arg,
/* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
/* nsegments */ ~0,
/* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
/* flags */ 0,
/* lockfunc */ NULL,
/* lockarg */ NULL,
&bt->parent_dmat) != 0) {
bt_isa_release_resources(dev);
return (ENOMEM);
}
error = bt_init(dev);
if (error) {
bt_isa_release_resources(dev);
return (ENOMEM);
}
if (lowaddr != BUS_SPACE_MAXADDR_32BIT) {
/* DMA tag for our sense buffers */
if (bus_dma_tag_create(
/* parent */ bt->parent_dmat,
/* alignment */ 1,
/* boundary */ 0,
/* lowaddr */ BUS_SPACE_MAXADDR,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ bt->max_ccbs *
sizeof(struct scsi_sense_data),
/* nsegments */ 1,
/* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
/* flags */ 0,
/* lockfunc */ NULL,
/* lockarg */ NULL,
&bt->sense_dmat) != 0) {
bt_isa_release_resources(dev);
return (ENOMEM);
}
bt->init_level++;
/* Allocation of sense buffers */
if (bus_dmamem_alloc(bt->sense_dmat,
(void **)&bt->sense_buffers,
BUS_DMA_NOWAIT, &bt->sense_dmamap) != 0) {
bt_isa_release_resources(dev);
return (ENOMEM);
}
bt->init_level++;
/* And permanently map them */
bus_dmamap_load(bt->sense_dmat, bt->sense_dmamap,
bt->sense_buffers,
bt->max_ccbs * sizeof(*bt->sense_buffers),
btmapsensebuffers, bt, /*flags*/0);
bt->init_level++;
}
error = bt_attach(dev);
if (error) {
bt_isa_release_resources(dev);
return (error);
}
return (0);
}
