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Initialize USB ports in parallel to speed-up boot.

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2013-03-19 23:06:44 +01:00
parent d745dda77e
commit f6df57d216
4 changed files with 227 additions and 149 deletions
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38
grub-core/bus/usb/usb.c
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@ -26,46 +26,8 @@
GRUB_MOD_LICENSE ("GPLv3+");
static grub_usb_controller_dev_t grub_usb_list;
static struct grub_usb_attach_desc *attach_hooks;
/* Iterate over all controllers found by the driver. */
static int
grub_usb_controller_dev_register_iter (grub_usb_controller_t dev, void *data)
{
grub_usb_controller_dev_t usb = data;
dev->dev = usb;
/* Enable the ports of the USB Root Hub. */
grub_usb_root_hub (dev);
return 0;
}
void
grub_usb_controller_dev_register (grub_usb_controller_dev_t usb)
{
usb->next = grub_usb_list;
grub_usb_list = usb;
if (usb->iterate)
usb->iterate (grub_usb_controller_dev_register_iter, usb);
}
void
grub_usb_controller_dev_unregister (grub_usb_controller_dev_t usb)
{
grub_usb_controller_dev_t *p, q;
for (p = &grub_usb_list, q = *p; q; p = &(q->next), q = q->next)
if (q == usb)
{
*p = q->next;
break;
}
}
#if 0
/* Context for grub_usb_controller_iterate. */
struct grub_usb_controller_iterate_ctx