static int
bt_pci_attach(device_t dev)
{
struct bt_softc *bt = device_get_softc(dev);
int opri;
int error;
/* Initialize softc */
error = bt_pci_alloc_resources(dev);
if (error) {
device_printf(dev, "can't allocate resources in bt_pci_attach\n");
return error;
}
/* Allocate a dmatag for our CCB DMA maps */
/* XXX Should be a child of the PCI bus dma tag */
if (bus_dma_tag_create( /* parent */ NULL,
/* alignemnt */ 1,
/* boundary */ 0,
/* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
/* nsegments */ ~0,
/* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
/* flags */ 0,
/* lockfunc */ busdma_lock_mutex,
/* lockarg */ &Giant,
&bt->parent_dmat) != 0) {
bt_pci_release_resources(dev);
return (ENOMEM);
}
/*
* Protect ourself from spurrious interrupts during
* intialization and attach. We should really rely
* on interrupts during attach, but we don't have
* access to our interrupts during ISA probes, so until
* that changes, we mask our interrupts during attach
* too.
*/
opri = splcam();
if (bt_probe(dev) || bt_fetch_adapter_info(dev) || bt_init(dev)) {
bt_pci_release_resources(dev);
splx(opri);
return (ENXIO);
}
error = bt_attach(dev);
splx(opri);
if (error) {
bt_pci_release_resources(dev);
return (error);
}
return (0);
}
static int
bt_pci_attach(device_t dev)
{
struct bt_softc *bt = device_get_softc(dev);
int error;
/* Initialize softc */
error = bt_pci_alloc_resources(dev);
if (error) {
device_printf(dev, "can't allocate resources in bt_pci_attach\n");
return error;
}
/* Allocate a dmatag for our CCB DMA maps */
if (bus_dma_tag_create( /* PCI parent */ bus_get_dma_tag(dev),
/* alignemnt */ 1,
/* boundary */ 0,
/* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
/* nsegments */ ~0,
/* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
/* flags */ 0,
/* lockfunc */ NULL,
/* lockarg */ NULL,
&bt->parent_dmat) != 0) {
bt_pci_release_resources(dev);
return (ENOMEM);
}
if (bt_probe(dev) || bt_fetch_adapter_info(dev) || bt_init(dev)) {
bt_pci_release_resources(dev);
return (ENXIO);
}
error = bt_attach(dev);
if (error) {
bt_pci_release_resources(dev);
return (error);
}
return (0);
}
static int
bt_eisa_attach(device_t dev)
{
struct bt_softc *bt = device_get_softc(dev);
/* Allocate resources */
bt_eisa_alloc_resources(dev);
/* Allocate a dmatag for our SCB DMA maps */
/* XXX Should be a child of the PCI bus dma tag */
if (bus_dma_tag_create( /* parent */ NULL,
/* alignment */ 1,
/* boundary */ 0,
/* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
/* nsegments */ ~0,
/* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
/* flags */ 0,
/* lockfunc */ busdma_lock_mutex,
/* lockarg, */ &Giant,
&bt->parent_dmat) != 0) {
bt_eisa_release_resources(dev);
return -1;
}
/*
* Now that we know we own the resources we need, do the full
* card initialization.
*/
if (bt_probe(dev) || bt_fetch_adapter_info(dev) || bt_init(dev)) {
bt_eisa_release_resources(dev);
return -1;
}
/* Attach sub-devices - always succeeds (sets up intr) */
bt_attach(dev);
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);
}
static int
bt_mca_attach (device_t dev)
{
struct bt_softc * bt = device_get_softc(dev);
int error = 0;
/* Allocate resources */
if ((error = bt_mca_alloc_resources(dev, BT_MCA_ATTACH))) {
device_printf(dev, "Unable to allocate resources in bt_mca_attach()\n");
return (error);
}
isa_dmacascade(rman_get_start(bt->drq));
/* Allocate a dmatag for our CCB DMA maps */
if (bus_dma_tag_create( /* parent */ NULL,
/* alignemnt */ 1,
/* boundary */ 0,
/* lowaddr */ BUS_SPACE_MAXADDR_24BIT,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ btvlbouncefilter,
/* filterarg */ bt,
/* maxsize */ BUS_SPACE_MAXSIZE_32BIT,
/* nsegments */ ~0,
/* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT,
/* flags */ 0,
/* lockfunc */ NULL,
/* lockarg */ NULL,
&bt->parent_dmat) != 0) {
bt_mca_release_resources(dev);
return (ENOMEM);
}
if (bt_init(dev)) {
bt_mca_release_resources(dev);
return (ENOMEM);
}
/* 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_mca_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_mca_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++;
if ((error = bt_attach(dev))) {
bt_mca_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);
}