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| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2015-10-01 17:40:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 11:34:17 +0200 |
| commit | 47189098f8bebe4d937945df70d3ca8e6c0b3e4d (patch) | |
| tree | d2e3d2ae95da94fcbc65fd7beb758ca0e2dffdb3 /drivers/usb/host/xhci.h | |
| parent | usb: store the new usb 3.1 SuperSpeedPlus device capability descriptor (diff) | |
| download | linux-47189098f8bebe4d937945df70d3ca8e6c0b3e4d.tar.xz linux-47189098f8bebe4d937945df70d3ca8e6c0b3e4d.zip | |
xhci: parse xhci protocol speed ID list for usb 3.1 usage
xhci 1.1 controllers that support USB 3.1 must provide a protocol speed ID
(PSI) list to inform the driver of the supported speeds.
The PSI list can be read from the xhci supported protocol extended
capabilities.
The PSI values will be used to create a USB 3.1 SuperSpeedPlus capability
descriptor for the xhci USB 3.1 roothub.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 17d4d4408637..cd4a6e795329 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -540,9 +540,23 @@ struct xhci_protocol_caps { }; #define XHCI_EXT_PORT_MAJOR(x) (((x) >> 24) & 0xff) +#define XHCI_EXT_PORT_MINOR(x) (((x) >> 16) & 0xff) +#define XHCI_EXT_PORT_PSIC(x) (((x) >> 28) & 0x0f) #define XHCI_EXT_PORT_OFF(x) ((x) & 0xff) #define XHCI_EXT_PORT_COUNT(x) (((x) >> 8) & 0xff) +#define XHCI_EXT_PORT_PSIV(x) (((x) >> 0) & 0x0f) +#define XHCI_EXT_PORT_PSIE(x) (((x) >> 4) & 0x03) +#define XHCI_EXT_PORT_PLT(x) (((x) >> 6) & 0x03) +#define XHCI_EXT_PORT_PFD(x) (((x) >> 8) & 0x01) +#define XHCI_EXT_PORT_LP(x) (((x) >> 14) & 0x03) +#define XHCI_EXT_PORT_PSIM(x) (((x) >> 16) & 0xffff) + +#define PLT_MASK (0x03 << 6) +#define PLT_SYM (0x00 << 6) +#define PLT_ASYM_RX (0x02 << 6) +#define PLT_ASYM_TX (0x03 << 6) + /** * struct xhci_container_ctx * @type: Type of context. Used to calculated offsets to contained contexts. @@ -1469,6 +1483,14 @@ static inline unsigned int hcd_index(struct usb_hcd *hcd) return 1; } +struct xhci_hub { + u8 maj_rev; + u8 min_rev; + u32 *psi; /* array of protocol speed ID entries */ + u8 psi_count; + u8 psi_uid_count; +}; + /* There is one xhci_hcd structure per controller */ struct xhci_hcd { struct usb_hcd *main_hcd; @@ -1608,6 +1630,8 @@ struct xhci_hcd { unsigned int num_usb3_ports; /* Array of pointers to USB 2.0 PORTSC registers */ __le32 __iomem **usb2_ports; + struct xhci_hub usb2_rhub; + struct xhci_hub usb3_rhub; unsigned int num_usb2_ports; /* support xHCI 0.96 spec USB2 software LPM */ unsigned sw_lpm_support:1; |