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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 coresystems GmbH
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 __UHCI_H
#define __UHCI_H
#include <pci.h>
#include <usb/usb.h>
typedef union {
struct {
unsigned long terminate:1;
unsigned long queue_head:1;
unsigned long:2;
unsigned long ptr_part:28;
};
u32 ptr;
} __attribute__ ((packed)) flistp_t;
typedef struct {
union {
struct {
unsigned long terminate:1;
unsigned long queue_head:1;
unsigned long depth_first:1;
unsigned long:29;
} __attribute__ ((packed));
u32 ptr;
} __attribute__ ((packed));
volatile unsigned long actlen:11;
volatile unsigned long:5;
union {
struct {
unsigned long:1; // bit 0
unsigned long status_bitstuff_err:1;
unsigned long status_crc_err:1;
unsigned long status_nakrcvd:1;
unsigned long status_babble:1;
unsigned long status_databuf_err:1;
unsigned long status_stalled:1;
unsigned long status_active:1; // bit 7
} __attribute__ ((packed));
unsigned char status;
} __attribute__ ((packed));
volatile unsigned long ioc:1; /* interrupt on complete */
volatile unsigned long isochronous:1;
volatile unsigned long lowspeed:1;
volatile unsigned long counter:2;
volatile unsigned long shortpck:1;
volatile unsigned long:2;
unsigned long pid:8;
unsigned long dev_addr:7;
unsigned long endp:4;
unsigned long data_toggle:1;
unsigned long:1;
unsigned long maxlen:11;
u32 bufptr;
} __attribute__ ((packed))
td_t;
typedef struct {
flistp_t headlinkptr;
volatile flistp_t elementlinkptr;
} __attribute__ ((packed))
qh_t;
typedef enum { USBCMD = 0, USBSTS = 2, USBINTR = 4, FRNUM =
6, FLBASEADD = 8, SOFMOD = 0xc, PORTSC1 = 0x10, PORTSC2 =
0x12
} usbreg;
void uhci_reg_write32 (hci_t *ctrl, usbreg reg, u32 value);
u32 uhci_reg_read32 (hci_t *ctrl, usbreg reg);
void uhci_reg_write16 (hci_t *ctrl, usbreg reg, u16 value);
u16 uhci_reg_read16 (hci_t *ctrl, usbreg reg);
void uhci_reg_write8 (hci_t *ctrl, usbreg reg, u8 value);
u8 uhci_reg_read8 (hci_t *ctrl, usbreg reg);
void uhci_reg_mask32 (hci_t *ctrl, usbreg reg, u32 andmask, u32 ormask);
void uhci_reg_mask16 (hci_t *ctrl, usbreg reg, u16 andmask, u16 ormask);
void uhci_reg_mask8 (hci_t *ctrl, usbreg reg, u8 andmask, u8 ormask);
typedef struct uhci {
flistp_t *framelistptr;
qh_t *qh_prei, *qh_intr, *qh_data, *qh_last;
usbdev_t *roothub;
} uhci_t;
#define UHCI_INST(controller) ((uhci_t*)((controller)->instance))
hci_t *uhci_init (pcidev_t addr);
void uhci_rh_init (usbdev_t *dev);
#endif
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