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DM USB: xHCI: add write function for extended capability registers. 

Some xHCI extended capabilities are writable. This patch adds the
writing function for excap.

Change-Id: Ie8b144b47ffa261f97d0461bf97b0c4d312a9333
Signed-off-by: Liang Yang <liang3.yang@intel.com>
Reviewed-by: Xiaoguang Wu <xiaoguang.wu@intel.com>
Reviewed-by: Yu Wang <yu1.wang@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
This commit is contained in:
YanLiang 2018-05-22 19:57:31 +08:00 committed by lijinxia
parent c91590ccfd
commit 1687765371
1 changed files with 13 additions and 0 deletions
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13
devicemodel/hw/pci/xhci.c
View File

@ -958,6 +958,17 @@ pci_xhci_portregs_write(struct pci_xhci_vdev *xdev,
}
}
static void
pci_xhci_excap_write(struct pci_xhci_vdev *xdev, uint64_t offset,
uint64_t value)
{
/* TODO: The default extended capabilities are readonly. Need implement
* related write operations once writable capabilities get supported in
* future.
*/
UPRINTF(LWRN, "write invalid offset 0x%lx\r\n", offset);
}
struct xhci_dev_ctx *
pci_xhci_get_dev_ctx(struct pci_xhci_vdev *xdev, uint32_t slot)
{
@ -2732,6 +2743,8 @@ pci_xhci_write(struct vmctx *ctx,
pci_xhci_dbregs_write(xdev, offset, value);
else if (offset < xdev->excapoff)
pci_xhci_rtsregs_write(xdev, offset, value);
else if (offset < xdev->regsend)
pci_xhci_excap_write(xdev, offset, value);
else
UPRINTF(LWRN, "write invalid offset %ld\r\n", offset);