Add conditional support for RTEMS PCI to the waf build.

Check for the "rtems/pci.h" header and provide conditional build support
with waf to build for BSPs that do not have PCI support. The Makefile build
always defines HAVE_RTEMS_PCI_H which is the same state with this change.

The PCI calls still exist however they do nothing and return a constant.
Any PCI based driver that makes these calls on a BSP that does not have
PCI support will not work which is understandable. Either change the
driver or add PCI support the BSP.
This commit is contained in:
Chris Johns
2015-05-27 10:42:28 +10:00
parent e35a65e995
commit 1383c80c5a
6 changed files with 24 additions and 7 deletions

View File

@@ -52,21 +52,27 @@ __FBSDID("$FreeBSD$");
#include <rtems/bsd/local/pcib_if.h>
#define pci_find_device rtems_pci_find_device
#if HAVE_RTEMS_PCI_H
#include <rtems/pci.h>
#endif
#include <machine/bus.h>
int
pcibios_pcib_route_interrupt(device_t pcib, device_t dev, int pin)
{
#if HAVE_RTEMS_PCI_H
int bus;
int slot;
int func;
uint8_t irq;
bus = pci_get_bus(dev);
slot = pci_get_slot(dev);
func = pci_get_function(dev);
pci_read_config_byte(bus, slot, func, PCI_INTERRUPT_LINE, &irq);
return irq;
#else
return 0;
#endif
}

View File

@@ -49,11 +49,12 @@ __FBSDID("$FreeBSD$");
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#define pci_find_device rtems_pci_find_device
#if HAVE_RTEMS_PCI_H
#include <rtems/pci.h>
#endif
/*
* Initialise access to PCI configuration space
/*
* Initialise access to PCI configuration space
*/
int
pci_cfgregopen(void)
@@ -61,12 +62,13 @@ pci_cfgregopen(void)
return(1);
}
/*
/*
* Read configuration space register
*/
u_int32_t
pci_cfgregread(int bus, int slot, int func, int reg, int bytes)
{
#if HAVE_RTEMS_PCI_H
u_int32_t value;
uint8_t v8;
uint16_t v16;
@@ -89,14 +91,18 @@ pci_cfgregread(int bus, int slot, int func, int reg, int bytes)
}
return value;
#else
return 0;
#endif
}
/*
* Write configuration space register
/*
* Write configuration space register
*/
void
pci_cfgregwrite(int bus, int slot, int func, int reg, u_int32_t data, int bytes)
{
#if HAVE_RTEMS_PCI_H
uint8_t v8 = data & 0xff;
uint16_t v16 = data & 0xffff;
uint32_t v32 = data;
@@ -112,4 +118,5 @@ pci_cfgregwrite(int bus, int slot, int func, int reg, u_int32_t data, int bytes)
pci_write_config_dword( bus, slot, func, reg, v32 );
break;
}
#endif
}