diff options
| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2010-05-25 00:25:28 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-06-05 00:16:19 +0400 |
| commit | 0238634d02dd10b678ebe9ea5d8803483277ee93 (patch) | |
| tree | 5978fcfdc185e15e407fb16e52daef4225c19882 /drivers/usb/host/xhci.c | |
| parent | ed07453fd356025cc25272629e982f5e4607632c (diff) | |
| download | linux-0238634d02dd10b678ebe9ea5d8803483277ee93.tar.xz | |
USB: xhci: Print NEC firmware version.
The NEC xHCI host controller firmware version can be found by putting a
vendor-specific command on the command ring and extracting the BCD
encoded-version out of the vendor-specific event TRB.
The firmware version debug line in dmesg will look like:
xhci_hcd 0000:05:00.0: NEC firmware version 30.21
(NEC merged with Renesas Technologies and became Renesas Electronics on
April 1, 2010. I have their OK to merge this vendor-specific code.)
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Satoshi Otani <satoshi.otani.xm@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 8a49c6716b69..27345cd04da0 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -486,6 +486,9 @@ int xhci_run(struct usb_hcd *hcd) if (NUM_TEST_NOOPS > 0) doorbell = xhci_setup_one_noop(xhci); + if (xhci->quirks & XHCI_NEC_HOST) + xhci_queue_vendor_command(xhci, 0, 0, 0, + TRB_TYPE(TRB_NEC_GET_FW)); if (xhci_start(xhci)) { xhci_halt(xhci); @@ -495,6 +498,8 @@ int xhci_run(struct usb_hcd *hcd) xhci_dbg(xhci, "// @%p = 0x%x\n", &xhci->op_regs->command, temp); if (doorbell) (*doorbell)(xhci); + if (xhci->quirks & XHCI_NEC_HOST) + xhci_ring_cmd_db(xhci); xhci_dbg(xhci, "Finished xhci_run\n"); return 0; |