int
ppc_isa_attach(device_t dev)
{
struct ppc_data *ppc = device_get_softc(dev);
if ((ppc->ppc_avm & PPB_ECP) && (ppc->ppc_dmachan > 0)) {
/* acquire the DMA channel forever */ /* XXX */
isa_dma_acquire(ppc->ppc_dmachan);
isa_dmainit(ppc->ppc_dmachan, 1024); /* nlpt.BUFSIZE */
ppc->ppc_dmadone = ppc_isa_dmadone;
}
return (ppc_attach(dev));
}
int
ppc_attach(device_t dev)
{
struct ppc_data *ppc = DEVTOSOFTC(dev);
device_t ppbus;
device_t parent = device_get_parent(dev);
device_printf(dev, "%s chipset (%s) in %s mode%s\n",
ppc_models[ppc->ppc_model], ppc_avms[ppc->ppc_avm],
ppc_modes[ppc->ppc_mode], (PPB_IS_EPP(ppc->ppc_mode)) ?
ppc_epp_protocol[ppc->ppc_epp] : "");
if (ppc->ppc_fifo)
device_printf(dev, "FIFO with %d/%d/%d bytes threshold\n",
ppc->ppc_fifo, ppc->ppc_wthr, ppc->ppc_rthr);
if ((ppc->ppc_avm & PPB_ECP) && (ppc->ppc_dmachan > 0)) {
/* acquire the DMA channel forever */ /* XXX */
isa_dma_acquire(ppc->ppc_dmachan);
isa_dmainit(ppc->ppc_dmachan, 1024); /* nlpt.BUFSIZE */
}
/* add ppbus as a child of this isa to parallel bridge */
ppbus = device_add_child(dev, "ppbus", -1);
/*
* Probe the ppbus and attach devices found.
*/
device_probe_and_attach(ppbus);
/* register the ppc interrupt handler as default */
if (ppc->res_irq) {
/* default to the tty mask for registration */ /* XXX */
if (BUS_SETUP_INTR(parent, dev, ppc->res_irq, INTR_TYPE_TTY,
ppcintr, dev, &ppc->intr_cookie) == 0) {
/* remember the ppcintr is registered */
ppc->ppc_registered = 1;
}
}
return (0);
}
/*
* Attach the mainbus.
*/
void
mainbus_attach(device_t parent, device_t self, void *aux)
{
#if NPCI > 0
union mainbus_attach_args mba;
#endif
#if NACPI > 0
int acpi_present = 0;
#endif
#ifdef MPBIOS
int mpbios_present = 0;
#endif
int mpacpi_active = 0;
int numcpus = 0;
#if NACPI > 0 || defined(MPBIOS)
int numioapics = 0;
#endif
#if defined(PCI_BUS_FIXUP)
int pci_maxbus = 0;
#endif
aprint_naive("\n");
aprint_normal("\n");
#ifdef MPBIOS
mpbios_present = mpbios_probe(self);
#endif
#if NPCI > 0
pci_mode = pci_mode_detect();
#if defined(PCI_BUS_FIXUP)
if (pci_mode != 0) {
pci_maxbus = pci_bus_fixup(NULL, 0);
aprint_debug("PCI bus max, after pci_bus_fixup: %i\n",
pci_maxbus);
#if defined(PCI_ADDR_FIXUP)
pciaddr.extent_port = NULL;
pciaddr.extent_mem = NULL;
pci_addr_fixup(NULL, pci_maxbus);
#endif
}
#endif
#endif
#if NACPI > 0
if ((boothowto & RB_MD2) == 0 && acpi_check(self, "acpibus"))
acpi_present = acpi_probe();
/*
* First, see if the MADT contains CPUs, and possibly I/O APICs.
* Building the interrupt routing structures can only
* be done later (via a callback).
*/
if (acpi_present)
mpacpi_active = mpacpi_scan_apics(self, &numcpus, &numioapics);
#endif
if (!mpacpi_active) {
#ifdef MPBIOS
if (mpbios_present)
mpbios_scan(self, &numcpus, &numioapics);
else
#endif
if (numcpus == 0) {
struct cpu_attach_args caa;
memset(&caa, 0, sizeof(caa));
caa.cpu_number = 0;
caa.cpu_role = CPU_ROLE_SP;
caa.cpu_func = 0;
config_found_ia(self, "cpubus", &caa, mainbus_print);
}
}
#if NISADMA > 0 && NACPI > 0
/*
* ACPI needs ISA DMA initialized before they start probing.
*/
isa_dmainit(&x86_isa_chipset, X86_BUS_SPACE_IO, &isa_bus_dma_tag,
self);
#endif
#if NACPI > 0
if (acpi_present) {
mba.mba_acpi.aa_iot = X86_BUS_SPACE_IO;
mba.mba_acpi.aa_memt = X86_BUS_SPACE_MEM;
mba.mba_acpi.aa_pc = NULL;
mba.mba_acpi.aa_pciflags =
PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED |
PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY |
PCI_FLAGS_MWI_OKAY;
mba.mba_acpi.aa_ic = &x86_isa_chipset;
config_found_ia(self, "acpibus", &mba.mba_acpi, 0);
}
#endif
#if NIPMI > 0
memset(&mba.mba_ipmi, 0, sizeof(mba.mba_ipmi));
mba.mba_ipmi.iaa_iot = X86_BUS_SPACE_IO;
mba.mba_ipmi.iaa_memt = X86_BUS_SPACE_MEM;
if (ipmi_probe(&mba.mba_ipmi))
config_found_ia(self, "ipmibus", &mba.mba_ipmi, 0);
#endif
#if NPCI > 0
if (pci_mode != 0) {
mba.mba_pba.pba_iot = X86_BUS_SPACE_IO;
mba.mba_pba.pba_memt = X86_BUS_SPACE_MEM;
mba.mba_pba.pba_dmat = &pci_bus_dma_tag;
mba.mba_pba.pba_dmat64 = &pci_bus_dma64_tag;
mba.mba_pba.pba_pc = NULL;
mba.mba_pba.pba_flags = pci_bus_flags();
mba.mba_pba.pba_bus = 0;
mba.mba_pba.pba_bridgetag = NULL;
#if NACPI > 0 && defined(ACPI_SCANPCI)
if (mpacpi_active)
mpacpi_scan_pci(self, &mba.mba_pba, pcibusprint);
else
#endif
#if defined(MPBIOS) && defined(MPBIOS_SCANPCI)
if (mpbios_scanned != 0)
mpbios_scan_pci(self, &mba.mba_pba, pcibusprint);
else
#endif
config_found_ia(self, "pcibus", &mba.mba_pba, pcibusprint);
#if NACPI > 0
if (mp_verbose)
acpi_pci_link_state();
#endif
}
#endif
#if NISA > 0
if (isa_has_been_seen == 0)
config_found_ia(self, "isabus", &mba_iba, isabusprint);
#endif
if (!pmf_device_register(self, NULL, NULL))
aprint_error_dev(self, "couldn't establish power handler\n");
}
