125 lines
4.0 KiB
C
125 lines
4.0 KiB
C
/*
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* This file is part of the libpayload project.
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*
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* Copyright (C) 2008 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_H
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#define __UHCI_H
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#include <pci.h>
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#include <usb/usb.h>
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typedef union {
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struct {
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unsigned long terminate:1;
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unsigned long queue_head:1;
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unsigned long:2;
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unsigned long ptr_part:28;
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};
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u32 ptr;
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} __attribute__ ((packed)) flistp_t;
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typedef struct {
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union {
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struct {
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unsigned long terminate:1;
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unsigned long queue_head:1;
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unsigned long depth_first:1;
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unsigned long:29;
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} __attribute__ ((packed));
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u32 ptr;
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} __attribute__ ((packed));
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volatile unsigned long actlen:11;
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volatile unsigned long:5;
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union {
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struct {
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unsigned long:1; // bit 0
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unsigned long status_bitstuff_err:1;
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unsigned long status_crc_err:1;
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unsigned long status_nakrcvd:1;
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unsigned long status_babble:1;
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unsigned long status_databuf_err:1;
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unsigned long status_stalled:1;
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unsigned long status_active:1; // bit 7
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} __attribute__ ((packed));
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unsigned char status;
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} __attribute__ ((packed));
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volatile unsigned long ioc:1; /* interrupt on complete */
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volatile unsigned long isochronous:1;
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volatile unsigned long lowspeed:1;
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volatile unsigned long counter:2;
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volatile unsigned long shortpck:1;
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volatile unsigned long:2;
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unsigned long pid:8;
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unsigned long dev_addr:7;
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unsigned long endp:4;
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unsigned long data_toggle:1;
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unsigned long:1;
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unsigned long maxlen:11;
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u32 bufptr;
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} __attribute__ ((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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} __attribute__ ((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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void uhci_reg_mask32 (hci_t *ctrl, usbreg reg, u32 andmask, u32 ormask);
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void uhci_reg_mask16 (hci_t *ctrl, usbreg reg, u16 andmask, u16 ormask);
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void uhci_reg_mask8 (hci_t *ctrl, usbreg reg, u8 andmask, u8 ormask);
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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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hci_t *uhci_init (pcidev_t addr);
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void uhci_rh_init (usbdev_t *dev);
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#endif
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