diff options
Diffstat (limited to 'sys/include/dev/usb')
| -rw-r--r-- | sys/include/dev/usb/xhciregs.h | 110 | ||||
| -rw-r--r-- | sys/include/dev/usb/xhcivar.h | 102 |
2 files changed, 212 insertions, 0 deletions
diff --git a/sys/include/dev/usb/xhciregs.h b/sys/include/dev/usb/xhciregs.h new file mode 100644 index 0000000..0b07524 --- /dev/null +++ b/sys/include/dev/usb/xhciregs.h @@ -0,0 +1,110 @@ +/* + * 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_XHCIREGS_H_ +#define _USB_XHCIREGS_H_ + +#include <sys/types.h> +#include <sys/cdefs.h> + +/* + * Host Controller Capability Registers + * + * See xHCI spec, section 5.3, table 5-9 + */ +struct __packed xhci_caps { + volatile uint8_t caplength; + volatile uint8_t reserved; + volatile uint16_t hciversion; + volatile uint32_t hcsparams1; + volatile uint32_t hcsparams2; + volatile uint32_t hcsparams3; + volatile uint32_t hccparams1; + volatile uint32_t dboff; + volatile uint32_t rtsoff; + volatile uint32_t hccparams2; +}; + +/* + * Host Controller Operational Registers + * + * See xHCI spec, section 5.4, table 5-18 + */ +struct __packed xhci_opregs { + volatile uint32_t usbcmd; + volatile uint32_t usbsts; + volatile uint32_t pagesize; + volatile uint32_t reserved; + volatile uint32_t reserved1; + volatile uint32_t dnctrl; + volatile uint64_t cmd_ring; + volatile uint32_t reserved2[4]; + volatile uint64_t dcbaa_ptr; + volatile uint32_t config; +}; + +/* USBCMD bits */ +#define USBCMD_RUN __BIT(0) /* Run/stop */ +#define USBCMD_HCRST __BIT(1) /* xHC reset */ + +/* USBSTS bits */ +#define USBSTS_HCH __BIT(0) /* HC halted */ + +/* CAPS.HCSPARAMS1 fields */ +#define XHCI_MAXSLOTS(HCSPARAMS1) (HCSPARAMS1 & 0xFF) +#define XHCI_MAXPORTS(HCSPARAMS1) ((HCSPARAMS1 >> 24) & 0xFF) +#define XHCI_ECP(HCCPARAMS1) ((HCCPARAMS1 >> 16) & 0xFFFF) + +/* CAPS.HCSPARAMS2 fields */ +#define XHCI_MAX_SP_HI(HCSPARAMS2) ((HCSPARAMS2 >> 25) & 0x1F) +#define XHCI_MAX_SP_LO(HCSPARAMS2) ((HCSPARAMS2 >> 31) & 0x1F) + +/* PORTSC bits */ +#define XHCI_PORTSC_CCS __BIT(0) /* Current connect status */ +#define XHCI_PORTSC_PR __BIT(4) /* Port reset */ + +/* Registers */ +#define XHCI_BASE_OFF(BASE, OFF) (void *)((uintptr_t)BASE + OFF) +#define XHCI_CAPS(BASE) XHCI_BASE_OFF(BASE, 0) +#define XHCI_OPBASE(BASE, CAP_LEN) XHCI_BASE_OFF(BASE, CAP_LEN) +#define XHCI_RTS(BASE, RTSOFF) XHCI_BASE_OFF(BASE, RTSOFF) +#define XHCI_CMD_DB(BASE, DBOFF) XHCI_BASE_OFF(BASE, DBOFF) + +/* Support protocol cap fields */ +#define XHCI_PROTO_ID(PROTO) (PROTO & 0xFF) +#define XHCI_PROTO_MINOR(PROTO) ((PROTO >> 16) & 0xFF) +#define XHCI_PROTO_MAJOR(PROTO) ((PROTO >> 24) & 0xFF) +#define XHCI_PROTO_NEXT(PROTO) ((PROTO >> 8) & 0xFF) +#define XHCI_PROTO_PORTOFF(PROTO2) (PROTO2 & 0xFF) +#define XHCI_PROTO_PORTCNT(PROTO2) ((PROTO2 >> 8) & 0xFF) + +/* Extended cap IDs */ +#define XHCI_ECAP_PROTO 2 + +#endif /* !_USB_XHCIREGS_H_ */ diff --git a/sys/include/dev/usb/xhcivar.h b/sys/include/dev/usb/xhcivar.h new file mode 100644 index 0000000..2667e2c --- /dev/null +++ b/sys/include/dev/usb/xhcivar.h @@ -0,0 +1,102 @@ +/* + * 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 128 /* 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; + }; +}; + +/* + * 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 enqueue ptr */ + struct xhci_opregs *opregs; + struct xhci_proto protos[XHCI_MAX_PROTOS]; + struct xhci_trb *cmd_ring; + struct xhci_evring_segment *evring_seg; +}; + +#endif /* !_USB_XHCIVAR_H_ */ |