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freebsd-nq/sys/dev/usb/controller/xhci.h
Hans Petter Selasky 30c6f4bac5 Fix XHCI driver for devices which have more than 15 physical root HUB 
ports. The current bitmap array was too small to hold more than 16
bits and would at some point toggle the context size, which then would
trigger an enumeration fault and cause a fallback to the EHCI
companion controller, if any.

MFC after:	3 days
2014-10-03 15:58:04 +00:00

520 lines
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/* $FreeBSD$ */
/*-
* Copyright (c) 2010 Hans Petter Selasky. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _XHCI_H_
#define _XHCI_H_
#define XHCI_MAX_DEVICES MIN(USB_MAX_DEVICES, 128)
#define XHCI_MAX_ENDPOINTS 32 /* hardcoded - do not change */
#define XHCI_MAX_SCRATCHPADS 32
#define XHCI_MAX_EVENTS (16 * 13)
#define XHCI_MAX_COMMANDS (16 * 1)
#define XHCI_MAX_RSEG 1
#define XHCI_MAX_TRANSFERS 4
#if USB_MAX_EP_STREAMS == 8
#define XHCI_MAX_STREAMS 8
#define XHCI_MAX_STREAMS_LOG 3
#elif USB_MAX_EP_STREAMS == 1
#define XHCI_MAX_STREAMS 1
#define XHCI_MAX_STREAMS_LOG 0
#else
#error "The USB_MAX_EP_STREAMS value is not supported."
#endif
#define XHCI_DEV_CTX_ADDR_ALIGN 64 /* bytes */
#define XHCI_DEV_CTX_ALIGN 64 /* bytes */
#define XHCI_INPUT_CTX_ALIGN 64 /* bytes */
#define XHCI_SLOT_CTX_ALIGN 32 /* bytes */
#define XHCI_ENDP_CTX_ALIGN 32 /* bytes */
#define XHCI_STREAM_CTX_ALIGN 16 /* bytes */
#define XHCI_TRANS_RING_SEG_ALIGN 16 /* bytes */
#define XHCI_CMD_RING_SEG_ALIGN 64 /* bytes */
#define XHCI_EVENT_RING_SEG_ALIGN 64 /* bytes */
#define XHCI_SCRATCH_BUF_ARRAY_ALIGN 64 /* bytes */
#define XHCI_SCRATCH_BUFFER_ALIGN USB_PAGE_SIZE
#define XHCI_TRB_ALIGN 16 /* bytes */
#define XHCI_TD_ALIGN 64 /* bytes */
#define XHCI_PAGE_SIZE 4096 /* bytes */
struct xhci_dev_ctx_addr {
volatile uint64_t qwBaaDevCtxAddr[USB_MAX_DEVICES + 1];
struct {
volatile uint64_t dummy;
} __aligned(64) padding;
volatile uint64_t qwSpBufPtr[XHCI_MAX_SCRATCHPADS];
};
#define XHCI_EPNO2EPID(x) \
((((x) & UE_DIR_IN) ? 1 : 0) | (2 * ((x) & UE_ADDR)))
struct xhci_slot_ctx {
volatile uint32_t dwSctx0;
#define XHCI_SCTX_0_ROUTE_SET(x) ((x) & 0xFFFFF)
#define XHCI_SCTX_0_ROUTE_GET(x) ((x) & 0xFFFFF)
#define XHCI_SCTX_0_SPEED_SET(x) (((x) & 0xF) << 20)
#define XHCI_SCTX_0_SPEED_GET(x) (((x) >> 20) & 0xF)
#define XHCI_SCTX_0_MTT_SET(x) (((x) & 0x1) << 25)
#define XHCI_SCTX_0_MTT_GET(x) (((x) >> 25) & 0x1)
#define XHCI_SCTX_0_HUB_SET(x) (((x) & 0x1) << 26)
#define XHCI_SCTX_0_HUB_GET(x) (((x) >> 26) & 0x1)
#define XHCI_SCTX_0_CTX_NUM_SET(x) (((x) & 0x1F) << 27)
#define XHCI_SCTX_0_CTX_NUM_GET(x) (((x) >> 27) & 0x1F)
volatile uint32_t dwSctx1;
#define XHCI_SCTX_1_MAX_EL_SET(x) ((x) & 0xFFFF)
#define XHCI_SCTX_1_MAX_EL_GET(x) ((x) & 0xFFFF)
#define XHCI_SCTX_1_RH_PORT_SET(x) (((x) & 0xFF) << 16)
#define XHCI_SCTX_1_RH_PORT_GET(x) (((x) >> 16) & 0xFF)
#define XHCI_SCTX_1_NUM_PORTS_SET(x) (((x) & 0xFF) << 24)
#define XHCI_SCTX_1_NUM_PORTS_GET(x) (((x) >> 24) & 0xFF)
volatile uint32_t dwSctx2;
#define XHCI_SCTX_2_TT_HUB_SID_SET(x) ((x) & 0xFF)
#define XHCI_SCTX_2_TT_HUB_SID_GET(x) ((x) & 0xFF)
#define XHCI_SCTX_2_TT_PORT_NUM_SET(x) (((x) & 0xFF) << 8)
#define XHCI_SCTX_2_TT_PORT_NUM_GET(x) (((x) >> 8) & 0xFF)
#define XHCI_SCTX_2_TT_THINK_TIME_SET(x) (((x) & 0x3) << 16)
#define XHCI_SCTX_2_TT_THINK_TIME_GET(x) (((x) >> 16) & 0x3)
#define XHCI_SCTX_2_IRQ_TARGET_SET(x) (((x) & 0x3FF) << 22)
#define XHCI_SCTX_2_IRQ_TARGET_GET(x) (((x) >> 22) & 0x3FF)
volatile uint32_t dwSctx3;
#define XHCI_SCTX_3_DEV_ADDR_SET(x) ((x) & 0xFF)
#define XHCI_SCTX_3_DEV_ADDR_GET(x) ((x) & 0xFF)
#define XHCI_SCTX_3_SLOT_STATE_SET(x) (((x) & 0x1F) << 27)
#define XHCI_SCTX_3_SLOT_STATE_GET(x) (((x) >> 27) & 0x1F)
volatile uint32_t dwSctx4;
volatile uint32_t dwSctx5;
volatile uint32_t dwSctx6;
volatile uint32_t dwSctx7;
};
struct xhci_endp_ctx {
volatile uint32_t dwEpCtx0;
#define XHCI_EPCTX_0_EPSTATE_SET(x) ((x) & 0x7)
#define XHCI_EPCTX_0_EPSTATE_GET(x) ((x) & 0x7)
#define XHCI_EPCTX_0_MULT_SET(x) (((x) & 0x3) << 8)
#define XHCI_EPCTX_0_MULT_GET(x) (((x) >> 8) & 0x3)
#define XHCI_EPCTX_0_MAXP_STREAMS_SET(x) (((x) & 0x1F) << 10)
#define XHCI_EPCTX_0_MAXP_STREAMS_GET(x) (((x) >> 10) & 0x1F)
#define XHCI_EPCTX_0_LSA_SET(x) (((x) & 0x1) << 15)
#define XHCI_EPCTX_0_LSA_GET(x) (((x) >> 15) & 0x1)
#define XHCI_EPCTX_0_IVAL_SET(x) (((x) & 0xFF) << 16)
#define XHCI_EPCTX_0_IVAL_GET(x) (((x) >> 16) & 0xFF)
volatile uint32_t dwEpCtx1;
#define XHCI_EPCTX_1_CERR_SET(x) (((x) & 0x3) << 1)
#define XHCI_EPCTX_1_CERR_GET(x) (((x) >> 1) & 0x3)
#define XHCI_EPCTX_1_EPTYPE_SET(x) (((x) & 0x7) << 3)
#define XHCI_EPCTX_1_EPTYPE_GET(x) (((x) >> 3) & 0x7)
#define XHCI_EPCTX_1_HID_SET(x) (((x) & 0x1) << 7)
#define XHCI_EPCTX_1_HID_GET(x) (((x) >> 7) & 0x1)
#define XHCI_EPCTX_1_MAXB_SET(x) (((x) & 0xFF) << 8)
#define XHCI_EPCTX_1_MAXB_GET(x) (((x) >> 8) & 0xFF)
#define XHCI_EPCTX_1_MAXP_SIZE_SET(x) (((x) & 0xFFFF) << 16)
#define XHCI_EPCTX_1_MAXP_SIZE_GET(x) (((x) >> 16) & 0xFFFF)
volatile uint64_t qwEpCtx2;
#define XHCI_EPCTX_2_DCS_SET(x) ((x) & 0x1)
#define XHCI_EPCTX_2_DCS_GET(x) ((x) & 0x1)
#define XHCI_EPCTX_2_TR_DQ_PTR_MASK 0xFFFFFFFFFFFFFFF0U
volatile uint32_t dwEpCtx4;
#define XHCI_EPCTX_4_AVG_TRB_LEN_SET(x) ((x) & 0xFFFF)
#define XHCI_EPCTX_4_AVG_TRB_LEN_GET(x) ((x) & 0xFFFF)
#define XHCI_EPCTX_4_MAX_ESIT_PAYLOAD_SET(x) (((x) & 0xFFFF) << 16)
#define XHCI_EPCTX_4_MAX_ESIT_PAYLOAD_GET(x) (((x) >> 16) & 0xFFFF)
volatile uint32_t dwEpCtx5;
volatile uint32_t dwEpCtx6;
volatile uint32_t dwEpCtx7;
};
struct xhci_input_ctx {
#define XHCI_INCTX_NON_CTRL_MASK 0xFFFFFFFCU
volatile uint32_t dwInCtx0;
#define XHCI_INCTX_0_DROP_MASK(n) (1U << (n))
volatile uint32_t dwInCtx1;
#define XHCI_INCTX_1_ADD_MASK(n) (1U << (n))
volatile uint32_t dwInCtx2;
volatile uint32_t dwInCtx3;
volatile uint32_t dwInCtx4;
volatile uint32_t dwInCtx5;
volatile uint32_t dwInCtx6;
volatile uint32_t dwInCtx7;
};
struct xhci_input_dev_ctx {
struct xhci_input_ctx ctx_input;
struct xhci_slot_ctx ctx_slot;
struct xhci_endp_ctx ctx_ep[XHCI_MAX_ENDPOINTS - 1];
};
struct xhci_dev_ctx {
struct xhci_slot_ctx ctx_slot;
struct xhci_endp_ctx ctx_ep[XHCI_MAX_ENDPOINTS - 1];
} __aligned(XHCI_DEV_CTX_ALIGN);
struct xhci_stream_ctx {
volatile uint64_t qwSctx0;
#define XHCI_SCTX_0_DCS_GET(x) ((x) & 0x1)
#define XHCI_SCTX_0_DCS_SET(x) ((x) & 0x1)
#define XHCI_SCTX_0_SCT_SET(x) (((x) & 0x7) << 1)
#define XHCI_SCTX_0_SCT_GET(x) (((x) >> 1) & 0x7)
#define XHCI_SCTX_0_SCT_SEC_TR_RING 0x0
#define XHCI_SCTX_0_SCT_PRIM_TR_RING 0x1
#define XHCI_SCTX_0_SCT_PRIM_SSA_8 0x2
#define XHCI_SCTX_0_SCT_PRIM_SSA_16 0x3
#define XHCI_SCTX_0_SCT_PRIM_SSA_32 0x4
#define XHCI_SCTX_0_SCT_PRIM_SSA_64 0x5
#define XHCI_SCTX_0_SCT_PRIM_SSA_128 0x6
#define XHCI_SCTX_0_SCT_PRIM_SSA_256 0x7
#define XHCI_SCTX_0_TR_DQ_PTR_MASK 0xFFFFFFFFFFFFFFF0U
volatile uint32_t dwSctx2;
volatile uint32_t dwSctx3;
};
struct xhci_trb {
volatile uint64_t qwTrb0;
#define XHCI_TRB_0_DIR_IN_MASK (0x80ULL << 0)
#define XHCI_TRB_0_WLENGTH_MASK (0xFFFFULL << 48)
volatile uint32_t dwTrb2;
#define XHCI_TRB_2_ERROR_GET(x) (((x) >> 24) & 0xFF)
#define XHCI_TRB_2_ERROR_SET(x) (((x) & 0xFF) << 24)
#define XHCI_TRB_2_TDSZ_GET(x) (((x) >> 17) & 0x1F)
#define XHCI_TRB_2_TDSZ_SET(x) (((x) & 0x1F) << 17)
#define XHCI_TRB_2_REM_GET(x) ((x) & 0xFFFFFF)
#define XHCI_TRB_2_REM_SET(x) ((x) & 0xFFFFFF)
#define XHCI_TRB_2_BYTES_GET(x) ((x) & 0x1FFFF)
#define XHCI_TRB_2_BYTES_SET(x) ((x) & 0x1FFFF)
#define XHCI_TRB_2_IRQ_GET(x) (((x) >> 22) & 0x3FF)
#define XHCI_TRB_2_IRQ_SET(x) (((x) & 0x3FF) << 22)
#define XHCI_TRB_2_STREAM_GET(x) (((x) >> 16) & 0xFFFF)
#define XHCI_TRB_2_STREAM_SET(x) (((x) & 0xFFFF) << 16)
volatile uint32_t dwTrb3;
#define XHCI_TRB_3_TYPE_GET(x) (((x) >> 10) & 0x3F)
#define XHCI_TRB_3_TYPE_SET(x) (((x) & 0x3F) << 10)
#define XHCI_TRB_3_CYCLE_BIT (1U << 0)
#define XHCI_TRB_3_TC_BIT (1U << 1) /* command ring only */
#define XHCI_TRB_3_ENT_BIT (1U << 1) /* transfer ring only */
#define XHCI_TRB_3_ISP_BIT (1U << 2)
#define XHCI_TRB_3_NSNOOP_BIT (1U << 3)
#define XHCI_TRB_3_CHAIN_BIT (1U << 4)
#define XHCI_TRB_3_IOC_BIT (1U << 5)
#define XHCI_TRB_3_IDT_BIT (1U << 6)
#define XHCI_TRB_3_TBC_GET(x) (((x) >> 7) & 3)
#define XHCI_TRB_3_TBC_SET(x) (((x) & 3) << 7)
#define XHCI_TRB_3_BEI_BIT (1U << 9)
#define XHCI_TRB_3_DCEP_BIT (1U << 9)
#define XHCI_TRB_3_PRSV_BIT (1U << 9)
#define XHCI_TRB_3_BSR_BIT (1U << 9)
#define XHCI_TRB_3_TRT_MASK (3U << 16)
#define XHCI_TRB_3_TRT_NONE (0U << 16)
#define XHCI_TRB_3_TRT_OUT (2U << 16)
#define XHCI_TRB_3_TRT_IN (3U << 16)
#define XHCI_TRB_3_DIR_IN (1U << 16)
#define XHCI_TRB_3_TLBPC_GET(x) (((x) >> 16) & 0xF)
#define XHCI_TRB_3_TLBPC_SET(x) (((x) & 0xF) << 16)
#define XHCI_TRB_3_EP_GET(x) (((x) >> 16) & 0x1F)
#define XHCI_TRB_3_EP_SET(x) (((x) & 0x1F) << 16)
#define XHCI_TRB_3_FRID_GET(x) (((x) >> 20) & 0x7FF)
#define XHCI_TRB_3_FRID_SET(x) (((x) & 0x7FF) << 20)
#define XHCI_TRB_3_ISO_SIA_BIT (1U << 31)
#define XHCI_TRB_3_SUSP_EP_BIT (1U << 23)
#define XHCI_TRB_3_SLOT_GET(x) (((x) >> 24) & 0xFF)
#define XHCI_TRB_3_SLOT_SET(x) (((x) & 0xFF) << 24)
/* Commands */
#define XHCI_TRB_TYPE_RESERVED 0x00
#define XHCI_TRB_TYPE_NORMAL 0x01
#define XHCI_TRB_TYPE_SETUP_STAGE 0x02
#define XHCI_TRB_TYPE_DATA_STAGE 0x03
#define XHCI_TRB_TYPE_STATUS_STAGE 0x04
#define XHCI_TRB_TYPE_ISOCH 0x05
#define XHCI_TRB_TYPE_LINK 0x06
#define XHCI_TRB_TYPE_EVENT_DATA 0x07
#define XHCI_TRB_TYPE_NOOP 0x08
#define XHCI_TRB_TYPE_ENABLE_SLOT 0x09
#define XHCI_TRB_TYPE_DISABLE_SLOT 0x0A
#define XHCI_TRB_TYPE_ADDRESS_DEVICE 0x0B
#define XHCI_TRB_TYPE_CONFIGURE_EP 0x0C
#define XHCI_TRB_TYPE_EVALUATE_CTX 0x0D
#define XHCI_TRB_TYPE_RESET_EP 0x0E
#define XHCI_TRB_TYPE_STOP_EP 0x0F
#define XHCI_TRB_TYPE_SET_TR_DEQUEUE 0x10
#define XHCI_TRB_TYPE_RESET_DEVICE 0x11
#define XHCI_TRB_TYPE_FORCE_EVENT 0x12
#define XHCI_TRB_TYPE_NEGOTIATE_BW 0x13
#define XHCI_TRB_TYPE_SET_LATENCY_TOL 0x14
#define XHCI_TRB_TYPE_GET_PORT_BW 0x15
#define XHCI_TRB_TYPE_FORCE_HEADER 0x16
#define XHCI_TRB_TYPE_NOOP_CMD 0x17
/* Events */
#define XHCI_TRB_EVENT_TRANSFER 0x20
#define XHCI_TRB_EVENT_CMD_COMPLETE 0x21
#define XHCI_TRB_EVENT_PORT_STS_CHANGE 0x22
#define XHCI_TRB_EVENT_BW_REQUEST 0x23
#define XHCI_TRB_EVENT_DOORBELL 0x24
#define XHCI_TRB_EVENT_HOST_CTRL 0x25
#define XHCI_TRB_EVENT_DEVICE_NOTIFY 0x26
#define XHCI_TRB_EVENT_MFINDEX_WRAP 0x27
/* Error codes */
#define XHCI_TRB_ERROR_INVALID 0x00
#define XHCI_TRB_ERROR_SUCCESS 0x01
#define XHCI_TRB_ERROR_DATA_BUF 0x02
#define XHCI_TRB_ERROR_BABBLE 0x03
#define XHCI_TRB_ERROR_XACT 0x04
#define XHCI_TRB_ERROR_TRB 0x05
#define XHCI_TRB_ERROR_STALL 0x06
#define XHCI_TRB_ERROR_RESOURCE 0x07
#define XHCI_TRB_ERROR_BANDWIDTH 0x08
#define XHCI_TRB_ERROR_NO_SLOTS 0x09
#define XHCI_TRB_ERROR_STREAM_TYPE 0x0A
#define XHCI_TRB_ERROR_SLOT_NOT_ON 0x0B
#define XHCI_TRB_ERROR_ENDP_NOT_ON 0x0C
#define XHCI_TRB_ERROR_SHORT_PKT 0x0D
#define XHCI_TRB_ERROR_RING_UNDERRUN 0x0E
#define XHCI_TRB_ERROR_RING_OVERRUN 0x0F
#define XHCI_TRB_ERROR_VF_RING_FULL 0x10
#define XHCI_TRB_ERROR_PARAMETER 0x11
#define XHCI_TRB_ERROR_BW_OVERRUN 0x12
#define XHCI_TRB_ERROR_CONTEXT_STATE 0x13
#define XHCI_TRB_ERROR_NO_PING_RESP 0x14
#define XHCI_TRB_ERROR_EV_RING_FULL 0x15
#define XHCI_TRB_ERROR_INCOMPAT_DEV 0x16
#define XHCI_TRB_ERROR_MISSED_SERVICE 0x17
#define XHCI_TRB_ERROR_CMD_RING_STOP 0x18
#define XHCI_TRB_ERROR_CMD_ABORTED 0x19
#define XHCI_TRB_ERROR_STOPPED 0x1A
#define XHCI_TRB_ERROR_LENGTH 0x1B
#define XHCI_TRB_ERROR_BAD_MELAT 0x1D
#define XHCI_TRB_ERROR_ISOC_OVERRUN 0x1F
#define XHCI_TRB_ERROR_EVENT_LOST 0x20
#define XHCI_TRB_ERROR_UNDEFINED 0x21
#define XHCI_TRB_ERROR_INVALID_SID 0x22
#define XHCI_TRB_ERROR_SEC_BW 0x23
#define XHCI_TRB_ERROR_SPLIT_XACT 0x24
} __aligned(4);
struct xhci_dev_endpoint_trbs {
struct xhci_trb trb[(XHCI_MAX_STREAMS *
XHCI_MAX_TRANSFERS) + XHCI_MAX_STREAMS];
};
#define XHCI_TD_PAGE_NBUF 17 /* units, room enough for 64Kbytes */
#define XHCI_TD_PAGE_SIZE 4096 /* bytes */
#define XHCI_TD_PAYLOAD_MAX (XHCI_TD_PAGE_SIZE * (XHCI_TD_PAGE_NBUF - 1))
struct xhci_td {
struct xhci_trb td_trb[XHCI_TD_PAGE_NBUF + 1];
/*
* Extra information needed:
*/
uint64_t td_self;
struct xhci_td *next;
struct xhci_td *alt_next;
struct xhci_td *obj_next;
struct usb_page_cache *page_cache;
uint32_t len;
uint32_t remainder;
uint8_t ntrb;
uint8_t status;
} __aligned(XHCI_TRB_ALIGN);
struct xhci_command {
struct xhci_trb trb;
TAILQ_ENTRY(xhci_command) entry;
};
struct xhci_event_ring_seg {
volatile uint64_t qwEvrsTablePtr;
volatile uint32_t dwEvrsTableSize;
volatile uint32_t dwEvrsReserved;
};
struct xhci_hw_root {
struct xhci_event_ring_seg hwr_ring_seg[XHCI_MAX_RSEG];
struct {
volatile uint64_t dummy;
} __aligned(64) padding;
struct xhci_trb hwr_events[XHCI_MAX_EVENTS];
struct xhci_trb hwr_commands[XHCI_MAX_COMMANDS];
};
struct xhci_endpoint_ext {
struct xhci_trb *trb;
struct usb_xfer *xfer[XHCI_MAX_TRANSFERS * XHCI_MAX_STREAMS];
struct usb_page_cache *page_cache;
uint64_t physaddr;
uint8_t trb_used[XHCI_MAX_STREAMS];
uint8_t trb_index[XHCI_MAX_STREAMS];
uint8_t trb_halted;
uint8_t trb_running;
uint8_t trb_ep_mode;
};
enum {
XHCI_ST_DISABLED,
XHCI_ST_ENABLED,
XHCI_ST_DEFAULT,
XHCI_ST_ADDRESSED,
XHCI_ST_CONFIGURED,
XHCI_ST_MAX
};
struct xhci_hw_dev {
struct usb_page_cache device_pc;
struct usb_page_cache input_pc;
struct usb_page_cache endpoint_pc[XHCI_MAX_ENDPOINTS];
struct usb_page device_pg;
struct usb_page input_pg;
struct usb_page endpoint_pg[XHCI_MAX_ENDPOINTS];
struct xhci_endpoint_ext endp[XHCI_MAX_ENDPOINTS];
uint8_t state;
uint8_t nports;
uint8_t tt;
uint8_t context_num;
};
struct xhci_hw_softc {
struct usb_page_cache root_pc;
struct usb_page_cache ctx_pc;
struct usb_page_cache scratch_pc[XHCI_MAX_SCRATCHPADS];
struct usb_page root_pg;
struct usb_page ctx_pg;
struct usb_page scratch_pg[XHCI_MAX_SCRATCHPADS];
struct xhci_hw_dev devs[XHCI_MAX_DEVICES + 1];
};
struct xhci_config_desc {
struct usb_config_descriptor confd;
struct usb_interface_descriptor ifcd;
struct usb_endpoint_descriptor endpd;
struct usb_endpoint_ss_comp_descriptor endpcd;
} __packed;
struct xhci_bos_desc {
struct usb_bos_descriptor bosd;
struct usb_devcap_usb2ext_descriptor usb2extd;
struct usb_devcap_ss_descriptor usbdcd;
struct usb_devcap_container_id_descriptor cidd;
} __packed;
union xhci_hub_desc {
struct usb_status stat;
struct usb_port_status ps;
struct usb_hub_ss_descriptor hubd;
uint8_t temp[128];
};
typedef int (xhci_port_route_t)(device_t, uint32_t, uint32_t);
struct xhci_softc {
struct xhci_hw_softc sc_hw;
/* base device */
struct usb_bus sc_bus;
/* configure message */
struct usb_bus_msg sc_config_msg[2];
struct usb_callout sc_callout;
xhci_port_route_t *sc_port_route;
union xhci_hub_desc sc_hub_desc;
struct cv sc_cmd_cv;
struct sx sc_cmd_sx;
struct usb_device *sc_devices[XHCI_MAX_DEVICES];
struct resource *sc_io_res;
int sc_irq_rid;
struct resource *sc_irq_res;
void *sc_intr_hdl;
bus_size_t sc_io_size;
bus_space_tag_t sc_io_tag;
bus_space_handle_t sc_io_hdl;
/* last pending command address */
uint64_t sc_cmd_addr;
/* result of command */
uint32_t sc_cmd_result[2];
/* copy of cmd register */
uint32_t sc_cmd;
/* worst case exit latency */
uint32_t sc_exit_lat_max;
/* offset to operational registers */
uint32_t sc_oper_off;
/* offset to capability registers */
uint32_t sc_capa_off;
/* offset to runtime registers */
uint32_t sc_runt_off;
/* offset to doorbell registers */
uint32_t sc_door_off;
/* chip specific */
uint16_t sc_erst_max;
uint16_t sc_event_idx;
uint16_t sc_command_idx;
uint16_t sc_imod_default;
uint8_t sc_event_ccs;
uint8_t sc_command_ccs;
/* number of XHCI device slots */
uint8_t sc_noslot;
/* number of ports on root HUB */
uint8_t sc_noport;
/* number of scratch pages */
uint8_t sc_noscratch;
/* root HUB device configuration */
uint8_t sc_conf;
/* root HUB port event bitmap, max 256 ports */
uint8_t sc_hub_idata[32];
/* size of context */
uint8_t sc_ctx_is_64_byte;
/* vendor string for root HUB */
char sc_vendor[16];
};
#define XHCI_CMD_LOCK(sc) sx_xlock(&(sc)->sc_cmd_sx)
#define XHCI_CMD_UNLOCK(sc) sx_xunlock(&(sc)->sc_cmd_sx)
#define XHCI_CMD_ASSERT_LOCKED(sc) sx_assert(&(sc)->sc_cmd_sx, SA_LOCKED)
/* prototypes */
uint8_t xhci_use_polling(void);
usb_error_t xhci_halt_controller(struct xhci_softc *);
usb_error_t xhci_init(struct xhci_softc *, device_t);
usb_error_t xhci_start_controller(struct xhci_softc *);
void xhci_interrupt(struct xhci_softc *);
void xhci_uninit(struct xhci_softc *);
#endif /* _XHCI_H_ */
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