diff options
| -rw-r--r-- | include/pciaccess.h | 2 | ||||
| -rw-r--r-- | src/common_interface.c | 11 | ||||
| -rw-r--r-- | src/linux_sysfs.c | 25 | ||||
| -rw-r--r-- | src/pciaccess_private.h | 1 |
4 files changed, 38 insertions, 1 deletions
diff --git a/include/pciaccess.h b/include/pciaccess.h index de8b4b3..cf32876 100644 --- a/include/pciaccess.h +++ b/include/pciaccess.h @@ -110,6 +110,8 @@ const char *pci_device_get_subdevice_name(const struct pci_device *dev); const char *pci_device_get_vendor_name(const struct pci_device *dev); const char *pci_device_get_subvendor_name(const struct pci_device *dev); +void pci_device_enable(struct pci_device *dev); + int pci_device_cfg_read (struct pci_device *dev, void *data, pciaddr_t offset, pciaddr_t size, pciaddr_t *bytes_read); int pci_device_cfg_read_u8 (struct pci_device *dev, uint8_t *data, diff --git a/src/common_interface.c b/src/common_interface.c index aee2754..663ab44 100644 --- a/src/common_interface.c +++ b/src/common_interface.c @@ -604,3 +604,14 @@ pci_device_cfg_write_bits( struct pci_device * dev, uint32_t mask, return err; } + +void +pci_device_enable(struct pci_device *dev) +{ + if (dev == NULL) { + return; + } + + if (pci_sys->methods->enable) + pci_sys->methods->enable(dev); +} diff --git a/src/linux_sysfs.c b/src/linux_sysfs.c index 78584d6..5fa0ea1 100644 --- a/src/linux_sysfs.c +++ b/src/linux_sysfs.c @@ -55,6 +55,8 @@ #include "pciaccess_private.h" #include "linux_devmem.h" +static void pci_device_linux_sysfs_enable(struct pci_device *dev); + static int pci_device_linux_sysfs_read_rom( struct pci_device * dev, void * buffer ); @@ -84,7 +86,8 @@ static const struct pci_system_methods linux_sysfs_methods = { .read = pci_device_linux_sysfs_read, .write = pci_device_linux_sysfs_write, - .fill_capabilities = pci_fill_capabilities_generic + .fill_capabilities = pci_fill_capabilities_generic, + .enable = pci_device_linux_sysfs_enable, }; #define SYS_BUS_PCI "/sys/bus/pci/devices" @@ -622,3 +625,23 @@ pci_device_linux_sysfs_unmap_range(struct pci_device *dev, return err; } + +static void pci_device_linux_sysfs_enable(struct pci_device *dev) +{ + char name[256]; + int fd; + + snprintf( name, 255, "%s/%04x:%02x:%02x.%1u/enable", + SYS_BUS_PCI, + dev->domain, + dev->bus, + dev->dev, + dev->func ); + + fd = open( name, O_RDWR ); + if (fd == -1) + return; + + write( fd, "1", 1 ); + close(fd); +} diff --git a/src/pciaccess_private.h b/src/pciaccess_private.h index 494f577..6048af1 100644 --- a/src/pciaccess_private.h +++ b/src/pciaccess_private.h @@ -59,6 +59,7 @@ struct pci_system_methods { pciaddr_t size, pciaddr_t * bytes_written ); int (*fill_capabilities)( struct pci_device * dev ); + void (*enable)( struct pci_device *dev ); }; struct pci_device_mapping { |