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device: Add helper function is_devfn_enabled() 

is_devfn_enabled() function helps to check if a device
is enabled based on given device function number. This
function internally called is_dev_enabled() to check
device state.

Change-Id: I6aeba0da05b13b70155a991f69a6abf7eb48a78c
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55278
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Subrata Banik 2021-06-08 00:55:04 +05:30
parent aced1f02cf
commit eca3e6278a
2 changed files with 7 additions and 0 deletions
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6
src/device/device_const.c
View File

@ -397,3 +397,9 @@ bool is_dev_enabled(const struct device *dev)
return false; return false;
return dev->enabled; return dev->enabled;
} }
bool is_devfn_enabled(unsigned int devfn)
{
const struct device *dev = pcidev_path_on_root(devfn);
return is_dev_enabled(dev);
}

1
src/include/device/device.h
View File

@ -192,6 +192,7 @@ void disable_children(struct bus *bus);
bool dev_is_active_bridge(struct device *dev); bool dev_is_active_bridge(struct device *dev);
void add_more_links(struct device *dev, unsigned int total_links); void add_more_links(struct device *dev, unsigned int total_links);
bool is_dev_enabled(const struct device *const dev); bool is_dev_enabled(const struct device *const dev);
bool is_devfn_enabled(unsigned int devfn);
/* Option ROM helper functions */ /* Option ROM helper functions */
void run_bios(struct device *dev, unsigned long addr); void run_bios(struct device *dev, unsigned long addr);