100 lines
3.3 KiB
C
100 lines
3.3 KiB
C
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/*
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* This file is part of the libpayload project.
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*
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* Copyright (C) 2008-2010 coresystems GmbH
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef __UHCI_PRIVATE_H
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#define __UHCI_PRIVATE_H
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typedef enum { UHCI_SETUP = 0x2d, UHCI_IN = 0x69, UHCI_OUT = 0xe1 } uhci_pid_t;
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typedef u32 flistp_t;
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#define FLISTP_TERMINATE 1
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#define FLISTP_QH 2
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typedef struct {
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u32 ptr;
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#define TD_TERMINATE 1
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#define TD_QH 2
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#define TD_DEPTH_FIRST 4
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u32 ctrlsts;
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#define TD_STATUS_MASK (0xff << 16)
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#define TD_STATUS_BITSTUFF_ERR (1 << 17)
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#define TD_STATUS_CRC_ERR (1 << 18)
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#define TD_STATUS_NAK_RCVD (1 << 19)
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#define TD_STATUS_BABBLE (1 << 20)
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#define TD_STATUS_DATABUF_ERR (1 << 21)
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#define TD_STATUS_STALLED (1 << 22)
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#define TD_STATUS_ACTIVE (1 << 23)
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#define TD_LOWSPEED (1 << 26)
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#define TD_COUNTER_SHIFT 27
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u32 token;
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#define TD_PID_MASK 0xff
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#define TD_DEVADDR_SHIFT 8
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#define TD_DEVADDR_MASK (((1 << 7)-1) << TD_DEVADDR_SHIFT)
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#define TD_EP_SHIFT 15
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#define TD_EP_MASK (0xf << TD_EP_SHIFT)
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#define TD_TOGGLE_SHIFT 19
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#define TD_MAXLEN_SHIFT 21
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#define TD_TOGGLE_DATA0 0
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#define TD_TOGGLE_DATA1 (1 << TD_TOGGLE_SHIFT)
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u32 bufptr;
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} __packed
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td_t;
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typedef struct {
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flistp_t headlinkptr;
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volatile flistp_t elementlinkptr;
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} __packed
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qh_t;
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typedef enum { USBCMD = 0, USBSTS = 2, USBINTR = 4, FRNUM =
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6, FLBASEADD = 8, SOFMOD = 0xc, PORTSC1 = 0x10, PORTSC2 =
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0x12
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} usbreg;
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void uhci_reg_write32 (hci_t *ctrl, usbreg reg, u32 value);
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u32 uhci_reg_read32 (hci_t *ctrl, usbreg reg);
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void uhci_reg_write16 (hci_t *ctrl, usbreg reg, u16 value);
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u16 uhci_reg_read16 (hci_t *ctrl, usbreg reg);
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void uhci_reg_write8 (hci_t *ctrl, usbreg reg, u8 value);
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u8 uhci_reg_read8 (hci_t *ctrl, usbreg reg);
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typedef struct uhci {
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flistp_t *framelistptr;
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qh_t *qh_prei, *qh_intr, *qh_data, *qh_last;
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usbdev_t *roothub;
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} uhci_t;
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#define UHCI_INST(controller) ((uhci_t*)((controller)->instance))
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#endif
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