[coreboot-gerrit] New patch to review for coreboot: 5b0c84f device_romstage: Add a way to find tdev struct from port/dev no.
Edward O'Callaghan (eocallaghan@alterapraxis.com)
gerrit at coreboot.org
Tue Jul 8 16:29:53 CEST 2014
Edward O'Callaghan (eocallaghan at alterapraxis.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/6221
-gerrit
commit 5b0c84fb7da2dcb7e617548082af0b0a811d9920
Author: Edward O'Callaghan <eocallaghan at alterapraxis.com>
Date: Wed Jul 9 00:25:10 2014 +1000
device_romstage: Add a way to find tdev struct from port/dev no.
NOTFORMERGE
When trying to loop through all the devices in romstage, there was
no function to translate a PnP port and device number to the
corresponding device structure.
Change-Id: I73bd396a5247077aa09e01c0f22510a8b2777ab8
Signed-off-by: Edward O'Callaghan <eocallaghan at alterapraxis.com>
---
src/device/device_romstage.c | 21 +++++++++++++++++++++
src/include/device/device.h | 1 +
2 files changed, 22 insertions(+)
diff --git a/src/device/device_romstage.c b/src/device/device_romstage.c
index 987fdad..df0df6a 100644
--- a/src/device/device_romstage.c
+++ b/src/device/device_romstage.c
@@ -101,3 +101,24 @@ ROMSTAGE_CONST struct device *dev_find_slot_on_smbus(unsigned int bus,
}
return result;
}
+
+/**
+ * Given a PnP port and a device number, find the device structure.
+ *
+ * @param port The I/O port.
+ * @param device Logical device number.
+ * @return Pointer to the device structure (if found), 0 otherwise.
+ */
+ROMSTAGE_CONST struct device *dev_find_slot_pnp(u16 port, u16 device)
+{
+ ROMSTAGE_CONST struct device *dev;
+
+ for (dev = all_devices; dev; dev = dev->next) {
+ if ((dev->path.type == DEVICE_PATH_PNP) &&
+ (dev->path.pnp.port == port) &&
+ (dev->path.pnp.device == device)) {
+ return dev;
+ }
+ }
+ return 0;
+}
diff --git a/src/include/device/device.h b/src/include/device/device.h
index ec17adf..77778db 100644
--- a/src/include/device/device.h
+++ b/src/include/device/device.h
@@ -248,6 +248,7 @@ ROMSTAGE_CONST struct device *dev_find_next_pci_device(
ROMSTAGE_CONST struct device *previous_dev);
ROMSTAGE_CONST struct device * dev_find_slot_on_smbus (unsigned int bus,
unsigned int addr);
+ROMSTAGE_CONST struct device * dev_find_slot_pnp(u16 port, u16 device);
#endif
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