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| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2010-05-24 13:25:28 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-06-04 13:16:19 -0700 |
| commit | 0238634d02dd10b678ebe9ea5d8803483277ee93 (patch) | |
| tree | 5978fcfdc185e15e407fb16e52daef4225c19882 /drivers/usb/host/xhci-ring.c | |
| parent | ed07453fd356025cc25272629e982f5e4607632c (diff) | |
| download | kernel_samsung_smdk4412-0238634d02dd10b678ebe9ea5d8803483277ee93.zip kernel_samsung_smdk4412-0238634d02dd10b678ebe9ea5d8803483277ee93.tar.gz kernel_samsung_smdk4412-0238634d02dd10b678ebe9ea5d8803483277ee93.tar.bz2 | |
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-ring.c')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 36c858e..9012098 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1071,6 +1071,15 @@ bandwidth_change: xhci_warn(xhci, "Reset device command completion " "for disabled slot %u\n", slot_id); break; + case TRB_TYPE(TRB_NEC_GET_FW): + if (!(xhci->quirks & XHCI_NEC_HOST)) { + xhci->error_bitmask |= 1 << 6; + break; + } + xhci_dbg(xhci, "NEC firmware version %2x.%02x\n", + NEC_FW_MAJOR(event->status), + NEC_FW_MINOR(event->status)); + break; default: /* Skip over unknown commands on the event ring */ xhci->error_bitmask |= 1 << 6; @@ -1079,6 +1088,17 @@ bandwidth_change: inc_deq(xhci, xhci->cmd_ring, false); } +static void handle_vendor_event(struct xhci_hcd *xhci, + union xhci_trb *event) +{ + u32 trb_type; + + trb_type = TRB_FIELD_TO_TYPE(event->generic.field[3]); + xhci_dbg(xhci, "Vendor specific event TRB type = %u\n", trb_type); + if (trb_type == TRB_NEC_CMD_COMP && (xhci->quirks & XHCI_NEC_HOST)) + handle_cmd_completion(xhci, &event->event_cmd); +} + static void handle_port_status(struct xhci_hcd *xhci, union xhci_trb *event) { @@ -1659,7 +1679,10 @@ void xhci_handle_event(struct xhci_hcd *xhci) update_ptrs = 0; break; default: - xhci->error_bitmask |= 1 << 3; + if ((event->event_cmd.flags & TRB_TYPE_BITMASK) >= TRB_TYPE(48)) + handle_vendor_event(xhci, event); + else + xhci->error_bitmask |= 1 << 3; } /* Any of the above functions may drop and re-acquire the lock, so check * to make sure a watchdog timer didn't mark the host as non-responsive. @@ -2378,6 +2401,12 @@ int xhci_queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr, false); } +int xhci_queue_vendor_command(struct xhci_hcd *xhci, + u32 field1, u32 field2, u32 field3, u32 field4) +{ + return queue_command(xhci, field1, field2, field3, field4, false); +} + /* Queue a reset device command TRB */ int xhci_queue_reset_device(struct xhci_hcd *xhci, u32 slot_id) { |