Subrata Banik (subrata.banik@intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17731
-gerrit
commit cd556271df994523a3b494ee2b465cc556a4c9ed Author: Subrata Banik subrata.banik@intel.com Date: Tue Dec 6 18:06:30 2016 +0530
src/device: Get device structure by path type
Add helper function to find a device by path type in the device tree.
Change-Id: I8846f63bd2488788ea3c7ab5154e7cf431a252bc Credits-to: Aaron Durbin adurbin@chromium.org Signed-off-by: Subrata Banik subrata.banik@intel.com Signed-off-by: Dhaval V Sharma dhaval.v.sharma@intel.com --- src/device/device_util.c | 23 +++++++++++++++++++++++ src/include/device/device.h | 1 + 2 files changed, 24 insertions(+)
diff --git a/src/device/device_util.c b/src/device/device_util.c index 56afefd..837012c 100644 --- a/src/device/device_util.c +++ b/src/device/device_util.c @@ -131,6 +131,29 @@ device_t dev_find_lapic(unsigned apic_id) }
/** + * Given a Device Path Type, find the device structure. + * + * @param dev The starting device instance. + * @param path_type The Device Path Type. + * @return Pointer to the device structure (if found), 0 otherwise. + */ +device_t dev_find_path(device_t start_dev, unsigned int path_type) +{ + device_t dev, result = NULL; + + if (start_dev == NULL) + start_dev = all_devices; + + for (dev = start_dev; dev; dev = dev->next) { + if (dev->path.type == path_type) { + result = dev; + break; + } + } + return result; +} + +/** * Find a device of a given vendor and type. * * @param vendor A PCI vendor ID (e.g. 0x8086 for Intel). diff --git a/src/include/device/device.h b/src/include/device/device.h index 95fabf4..ea71c4d 100644 --- a/src/include/device/device.h +++ b/src/include/device/device.h @@ -195,6 +195,7 @@ device_t find_dev_path(struct bus *parent, struct device_path *path); device_t alloc_find_dev(struct bus *parent, struct device_path *path); device_t dev_find_device (u16 vendor, u16 device, device_t from); device_t dev_find_class (unsigned int class, device_t from); +device_t dev_find_path(device_t start_dev, unsigned int path_type); device_t dev_find_slot (unsigned int bus, unsigned int devfn); device_t dev_find_slot_on_smbus (unsigned int bus, unsigned int addr); device_t dev_find_slot_pnp(u16 port, u16 device);