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moved PCI module specific code into pci_module.c

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moved PCI bus scanning into pci.cpp


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4854 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
beveloper 2003-09-29 18:56:18 +00:00
parent eae4df8320
commit 870d99e3fc
1 changed files with 0 additions and 168 deletions
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168
src/add-ons/kernel/bus_managers/pci/pci.c
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@ -1,168 +0,0 @@
#include <KernelExport.h>
#include <bus_manager.h>
#include <PCI.h>
#include "pci_priv.h"
bool gIrqRouterAvailable = false;
spinlock gConfigLock = 0;
void pci_scan_device(uint8 bus, uint8 dev, uint8 func);
void pci_scan_bus(uint8 bus);
long get_nth_pci_info(long index, pci_info *outInfo);
status_t pci_module_init(void);
status_t pci_module_uninit(void);
int32 std_ops(int32 op, ...);
status_t pci_module_rescan(void);
void
pci_scan_device(uint8 bus, uint8 dev, uint8 func)
{
uint16 vendorID;
uint16 deviceID;
uint8 type, base_class, sub_class;
deviceID = pci_read_config(bus, dev, func, PCI_device_id, 2);
if (deviceID == 0xffff)
return;
vendorID = pci_read_config(bus, dev, func, PCI_vendor_id, 2);
base_class = pci_read_config(bus, dev, func, PCI_class_base, 1);
sub_class = pci_read_config(bus, dev, func, PCI_class_sub, 1);
type = pci_read_config(bus, dev, func, PCI_header_type, 1);
dprintf("PCI: bus %2u, device %2u, function %u: vendor 0x%04x, device 0x%04x, base_class 0x%02x, sub_class 0x%02x\n",
bus, dev, func, vendorID, deviceID, base_class, sub_class);
switch (type & PCI_header_type_mask) {
case 0:
// dprintf("PCI: Header type 0:\n");
break;
case 1:
// dprintf("PCI: Header type 1:\n");
break;
default:
dprintf("PCI: Header type unknown (%d)\n", type & PCI_header_type_mask);
break;
}
if (base_class == PCI_bridge && sub_class == PCI_pci) {
uint8 secondary_bus = pci_read_config(bus, dev, func, PCI_secondary_bus, 1);
pci_scan_bus(secondary_bus);
}
}
void
pci_scan_bus(uint8 bus)
{
uint8 dev;
dprintf("PCI: pci_scan_bus, bus %u\n", bus);
for (dev = 0; dev < gMaxBusDevices; dev++) {
uint16 vendorID = pci_read_config(bus, dev, 0, PCI_vendor_id, 2);
uint16 deviceID;
uint8 type, func, nfunc;
if (vendorID == 0xffff)
continue;
deviceID = pci_read_config(bus, dev, 0, PCI_device_id, 2);
type = pci_read_config(bus, dev, 0, PCI_header_type, 1);
nfunc = (type & PCI_multifunction) ? 8 : 1;
for (func = 0; func < nfunc; func++)
pci_scan_device(bus, dev, func);
}
}
long
get_nth_pci_info(long index, pci_info *outInfo)
{
return 0;
}
status_t
pci_module_init(void)
{
dprintf("PCI: pci_module_init\n");
if (B_OK != pci_io_init()) {
dprintf("PCI: pci_io_init failed\n");
return B_ERROR;
}
if (B_OK != pci_config_init()) {
dprintf("PCI: pci_config_init failed\n");
return B_ERROR;
}
if (B_OK != pci_irq_init()) {
dprintf("PCI: IRQ router not available\n");
} else {
gIrqRouterAvailable = true;
}
pci_scan_bus(0);
return B_OK;
}
status_t
pci_module_uninit(void)
{
dprintf("PCI: pci_module_uninit\n");
return B_OK;
}
status_t
pci_module_rescan(void)
{
return B_OK;
}
int32
std_ops(int32 op, ...)
{
switch (op) {
case B_MODULE_INIT:
return pci_module_init();
case B_MODULE_UNINIT:
return pci_module_uninit();
}
return EINVAL;
}
struct pci_module_info pci_module = {
{
{
B_PCI_MODULE_NAME,
B_KEEP_LOADED,
std_ops
},
pci_module_rescan
},
&pci_read_io_8,
&pci_write_io_8,
&pci_read_io_16,
&pci_write_io_16,
&pci_read_io_32,
&pci_write_io_32,
&get_nth_pci_info,
&pci_read_config,
&pci_write_config,
&pci_ram_address
};
module_info *modules[] = {
(module_info *)&pci_module,
NULL
};