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/*
* Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
* 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.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 _USB_XHCIVAR_H_
#define _USB_XHCIVAR_H_
#include <sys/types.h>
#include <sys/cdefs.h>
#include <dev/usb/xhciregs.h>
#define XHCI_TIMEOUT 500 /* In ms */
#define XHCI_CMDRING_LEN 16
#define XHCI_EVRING_LEN 16
#define XHCI_TRB_SIZE 16 /* In bytes */
#define XHCI_EVENTRING_LEN XHCI_CMDRING_LEN
#define XHCI_MAX_PROTOS 4
struct xhci_nop_trb {
uint32_t reserved;
uint32_t reserved1;
uint32_t reserved2;
uint8_t cycle : 1;
uint16_t reserved3 : 9;
uint8_t type : 6;
uint16_t reserved4;
};
/*
* xHCI Transfer Request Block
*/
struct xhci_trb {
union {
struct xhci_nop_trb nop;
struct {
uint32_t dword0;
uint32_t dword1;
uint32_t dword2;
uint32_t dword3;
};
};
};
/*
* USB proto (USB 2.0 or 3.0)
*/
struct xhci_proto {
uint8_t major; /* Revision major */
uint8_t port_start; /* Port offset start */
uint8_t port_count; /* Number of ports */
};
/*
* xHCI event ring segment
*
* See xHCI spec, section 6.5, table 6-40
*/
struct __packed xhci_evring_segment {
uint8_t reserved : 5;
uint64_t base : 58;
uint16_t size;
uint32_t reserved1 : 17;
};
/*
* Host controller.
*/
struct xhci_hc {
void *base;
uint8_t caplen;
uint8_t maxslots;
size_t maxports;
size_t protocnt;
uintptr_t *dcbaap;
uint8_t cycle : 1;
uint16_t cmd_ptr; /* Command ring index */
uint16_t cmd_count; /* Command ring entry count */
uint32_t *cmd_ring;
struct xhci_opregs *opregs;
struct xhci_proto protos[XHCI_MAX_PROTOS];
struct xhci_evring_segment *evring_seg;
};
/* TRB types */
#define XHCI_ENABLE_SLOT 9
#define XHCI_LINK 6
#endif /* !_USB_XHCIVAR_H_ */
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