diff options
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 074728e1022..5a09b9a26e0 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -89,6 +89,7 @@ struct xhci_cap_regs { #define HCS_ERST_MAX(p) (((p) >> 4) & 0xf) /* bit 26 Scratchpad restore - for save/restore HW state - not used yet */ /* bits 27:31 number of Scratchpad buffers SW must allocate for the HW */ +#define HCS_MAX_SCRATCHPAD(p) (((p) >> 27) & 0x1f) /* HCSPARAMS3 - hcs_params3 - bitmasks */ /* bits 0:7, Max U1 to U0 latency for the roothub ports */ @@ -951,6 +952,13 @@ struct xhci_erst { unsigned int erst_size; }; +struct xhci_scratchpad { + u64 *sp_array; + dma_addr_t sp_dma; + void **sp_buffers; + dma_addr_t *sp_dma_buffers; +}; + /* * Each segment table entry is 4*32bits long. 1K seems like an ok size: * (1K bytes * 8bytes/bit) / (4*32 bits) = 64 segment entries in the table, @@ -1005,6 +1013,9 @@ struct xhci_hcd { struct xhci_ring *cmd_ring; struct xhci_ring *event_ring; struct xhci_erst erst; + /* Scratchpad */ + struct xhci_scratchpad *scratchpad; + /* slot enabling and address device helpers */ struct completion addr_dev; int slot_id; |