100 lines
3.3 KiB
Diff
100 lines
3.3 KiB
Diff
diff -up libpciaccess-0.10.6/include/pciaccess.h.da libpciaccess-0.10.6/include/pciaccess.h
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--- libpciaccess-0.10.6/include/pciaccess.h.da 2008-05-22 09:35:04.000000000 +1000
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+++ libpciaccess-0.10.6/include/pciaccess.h 2009-07-27 15:10:14.000000000 +1000
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@@ -50,6 +50,8 @@ struct pci_slot_match;
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extern "C" {
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#endif
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+int pci_device_is_boot_vga(struct pci_device *dev);
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+
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int pci_device_read_rom(struct pci_device *dev, void *buffer);
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int __deprecated pci_device_map_region(struct pci_device *dev,
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diff -up libpciaccess-0.10.6/src/common_interface.c.da libpciaccess-0.10.6/src/common_interface.c
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--- libpciaccess-0.10.6/src/common_interface.c.da 2008-11-19 14:11:59.000000000 +1000
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+++ libpciaccess-0.10.6/src/common_interface.c 2009-07-27 15:10:14.000000000 +1000
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@@ -108,6 +108,20 @@ pci_device_read_rom( struct pci_device *
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return (pci_sys->methods->read_rom)( dev, buffer );
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}
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+/**
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+ * Probe a PCI (VGA) device to determine if its the boot VGA device
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+ *
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+ * \param dev Device whose VGA status to query
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+ * \return
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+ * Zero if not the boot VGA, 1 if the boot VGA.
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+ */
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+int
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+pci_device_is_boot_vga( struct pci_device * dev )
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+{
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+ if (!pci_sys->methods->boot_vga)
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+ return 0;
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+ return pci_sys->methods->boot_vga( dev );
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+}
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/**
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* Probe a PCI device to learn information about the device.
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diff -up libpciaccess-0.10.6/src/linux_sysfs.c.da libpciaccess-0.10.6/src/linux_sysfs.c
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--- libpciaccess-0.10.6/src/linux_sysfs.c.da 2009-07-27 15:10:00.000000000 +1000
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+++ libpciaccess-0.10.6/src/linux_sysfs.c 2009-07-27 15:10:14.000000000 +1000
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@@ -77,6 +77,8 @@ static int pci_device_linux_sysfs_write(
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const void * data, pciaddr_t offset, pciaddr_t size,
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pciaddr_t * bytes_written );
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+static int pci_device_linux_sysfs_boot_vga( struct pci_device * dev );
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+
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static const struct pci_system_methods linux_sysfs_methods = {
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.destroy = pci_device_linux_sysfs_destroy,
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.destroy_device = NULL,
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@@ -90,6 +92,7 @@ static const struct pci_system_methods l
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.fill_capabilities = pci_fill_capabilities_generic,
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.enable = pci_device_linux_sysfs_enable,
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+ .boot_vga = pci_device_linux_sysfs_boot_vga,
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};
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#define SYS_BUS_PCI "/sys/bus/pci/devices"
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@@ -730,3 +733,31 @@ static void pci_device_linux_sysfs_enabl
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write( fd, "1", 1 );
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close(fd);
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}
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+
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+static int pci_device_linux_sysfs_boot_vga(struct pci_device *dev)
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+{
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+ char name[256];
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+ char reply[3];
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+ int fd, bytes_read;
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+ int ret = 0;
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+
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+ snprintf( name, 255, "%s/%04x:%02x:%02x.%1u/boot_vga",
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+ SYS_BUS_PCI,
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+ dev->domain,
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+ dev->bus,
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+ dev->dev,
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+ dev->func );
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+
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+ fd = open( name, O_RDONLY );
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+ if (fd == -1)
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+ return 0;
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+
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+ bytes_read = read(fd, reply, 1);
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+ if (bytes_read != 1)
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+ goto out;
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+ if (reply[0] == '1')
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+ ret = 1;
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+out:
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+ close(fd);
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+ return ret;
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+}
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diff -up libpciaccess-0.10.6/src/pciaccess_private.h.da libpciaccess-0.10.6/src/pciaccess_private.h
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--- libpciaccess-0.10.6/src/pciaccess_private.h.da 2008-10-16 08:35:53.000000000 +1000
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+++ libpciaccess-0.10.6/src/pciaccess_private.h 2009-07-27 15:10:14.000000000 +1000
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@@ -60,6 +60,7 @@ struct pci_system_methods {
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int (*fill_capabilities)( struct pci_device * dev );
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void (*enable)( struct pci_device *dev );
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+ int (*boot_vga)( struct pci_device *dev );
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};
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struct pci_device_mapping {
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