From bdbf3af5b918c8a2a930927f8d146db1645aa785 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Fri, 20 Dec 2024 01:10:29 -0500 Subject: kernel: xhci: Add initial xhci/usb3 driver impl Signed-off-by: Ian Moffett --- sys/include/dev/usb/xhcivar.h | 80 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 sys/include/dev/usb/xhcivar.h (limited to 'sys/include/dev/usb/xhcivar.h') diff --git a/sys/include/dev/usb/xhcivar.h b/sys/include/dev/usb/xhcivar.h new file mode 100644 index 0000000..cd445c8 --- /dev/null +++ b/sys/include/dev/usb/xhcivar.h @@ -0,0 +1,80 @@ +/* + * 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 +#include +#include + +#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_MAX_PROTOS 4 + +/* + * 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 { + uint64_t base; + uint32_t size; + uint32_t reserved; +}; + +/* + * Host controller. + */ +struct xhci_hc { + void *base; + uintptr_t *dcbaap; + uint32_t *cmdring; + uint32_t *evring; + uint8_t maxslots; + uint8_t cr_cycle : 1; + size_t maxports; + size_t protocnt; + struct xhci_caps *caps; + struct xhci_opregs *opregs; + struct xhci_proto protos[XHCI_MAX_PROTOS]; +}; + +#endif /* !_USB_XHCIVAR_H_ */ -- cgit v1.2.3