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Diffstat (limited to 'drivers/usb/host/xhci.h')
-rw-r--r--drivers/usb/host/xhci.h16
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 170c367112d2..7f236fd22015 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -436,22 +436,18 @@ struct xhci_run_regs {
436/** 436/**
437 * struct doorbell_array 437 * struct doorbell_array
438 * 438 *
439 * Bits 0 - 7: Endpoint target
440 * Bits 8 - 15: RsvdZ
441 * Bits 16 - 31: Stream ID
442 *
439 * Section 5.6 443 * Section 5.6
440 */ 444 */
441struct xhci_doorbell_array { 445struct xhci_doorbell_array {
442 u32 doorbell[256]; 446 u32 doorbell[256];
443}; 447};
444 448
445#define DB_TARGET_MASK 0xFFFFFF00 449#define DB_VALUE(ep, stream) ((((ep) + 1) & 0xff) | ((stream) << 16))
446#define DB_STREAM_ID_MASK 0x0000FFFF 450#define DB_VALUE_HOST 0x00000000
447#define DB_TARGET_HOST 0x0
448#define DB_STREAM_ID_HOST 0x0
449#define DB_MASK (0xff << 8)
450
451/* Endpoint Target - bits 0:7 */
452#define EPI_TO_DB(p) (((p) + 1) & 0xff)
453#define STREAM_ID_TO_DB(p) (((p) & 0xffff) << 16)
454
455 451
456/** 452/**
457 * struct xhci_protocol_caps 453 * struct xhci_protocol_caps