diff options
Diffstat (limited to 'src/devices/device_util.c')
| -rw-r--r-- | src/devices/device_util.c | 68 |
1 files changed, 57 insertions, 11 deletions
diff --git a/src/devices/device_util.c b/src/devices/device_util.c index a19a878b47..fa2adaef4f 100644 --- a/src/devices/device_util.c +++ b/src/devices/device_util.c @@ -16,7 +16,7 @@ device_t find_dev_path(struct bus *parent, struct device_path *path) { device_t child; - for (child = parent->children; child; child = child->sibling) { + for(child = parent->children; child; child = child->sibling) { if (path_eq(path, &child->path)) { break; } @@ -178,6 +178,14 @@ const char *dev_path(device_t dev) return buffer; } +const char *bus_path(struct bus *bus) +{ + static char buffer[BUS_PATH_MAX]; + sprintf(buffer, "%s,%d", + dev_path(bus->dev), bus->link); + return buffer; +} + int path_eq(struct device_path *path1, struct device_path *path2) { int equal = 0; @@ -390,12 +398,30 @@ resource_t resource_max(struct resource *resource) } /** + * @brief return the resource type of a resource + * @param resource the resource type to decode. + */ +const char *resource_type(struct resource *resource) +{ + static char buffer[RESOURCE_TYPE_MAX]; + sprintf(buffer, "%s%s%s%s", + ((resource->flags & IORESOURCE_READONLY)? "ro": ""), + ((resource->flags & IORESOURCE_PREFETCH)? "pref":""), + ((resource->flags == 0)? "unused": + (resource->flags & IORESOURCE_IO)? "io": + (resource->flags & IORESOURCE_DRQ)? "drq": + (resource->flags & IORESOURCE_IRQ)? "irq": + (resource->flags & IORESOURCE_MEM)? "mem":"??????"), + ((resource->flags & IORESOURCE_PCI64)?"64":"")); + return buffer; +} + +/** * @brief print the resource that was just stored. * @param dev the device the stored resorce lives on * @param resource the resource that was just stored. */ -void report_resource_stored(device_t dev, struct resource *resource, - const char *comment) +void report_resource_stored(device_t dev, struct resource *resource, const char *comment) { if (resource->flags & IORESOURCE_STORED) { unsigned char buf[10]; @@ -407,18 +433,12 @@ void report_resource_stored(device_t dev, struct resource *resource, sprintf(buf, "bus %d ", dev->link[0].secondary); } printk_debug( - "%s %02x <- [0x%010Lx - 0x%010Lx] %s%s%s%s\n", + "%s %02x <- [0x%010Lx - 0x%010Lx] %s%s%s\n", dev_path(dev), resource->index, base, end, buf, - (resource->flags & IORESOURCE_PREFETCH) ? "pref" : "", - (resource->flags & IORESOURCE_IO)? "io": - (resource->flags & IORESOURCE_DRQ)? "drq": - (resource->flags & IORESOURCE_IRQ)? "irq": - (resource->flags & IORESOURCE_READONLY)? "rom": - (resource->flags & IORESOURCE_MEM)? "mem": - "????", + resource_type(resource), comment); } } @@ -473,3 +493,29 @@ void search_global_resources( } } } + +void dev_set_enabled(device_t dev, int enable) +{ + if (dev->enabled == enable) { + return; + } + dev->enabled = enable; + if (dev->ops && dev->ops->enable) { + dev->ops->enable(dev); + } + else if (dev->chip_ops && dev->chip_ops->enable_dev) { + dev->chip_ops->enable_dev(dev); + } +} + +void disable_children(struct bus *bus) +{ + device_t child; + for(child = bus->children; child; child = child->sibling) { + int link; + for(link = 0; link < child->links; link++) { + disable_children(&child->link[link]); + } + dev_set_enabled(child, 0); + } +} |