freebsd-skq/sys/boot/i386/libfirewire/fwohci.h
eadler 44c01df173 Fix undefined behavior: (1 << 31) is not defined as 1 is an int and this
shifts into the sign bit.  Instead use (1U << 31) which gets the
expected result.

This fix is not ideal as it assumes a 32 bit int, but does fix the issue
for most cases.

A similar change was made in OpenBSD.

Discussed with:	-arch, rdivacky
Reviewed by:	cperciva
2013-11-30 22:17:27 +00:00

163 lines
5.0 KiB
C

/*
* Copyright (c) 2007 Hidetoshi Shimokawa
* 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. All advertising materials mentioning features or use of this software
* must display the acknowledgement as bellow:
*
* This product includes software developed by K. Kobayashi and H. Shimokawa
*
* 4. 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 ``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 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.
*
* $FreeBSD$
*
*/
#define MAX_OHCI 5
#define CROMSIZE 0x400
struct fw_eui64 {
uint32_t hi, lo;
};
struct fwohci_softc {
uint32_t locator;
uint32_t devid;
uint32_t base_addr;
uint32_t bus_id;
uint32_t handle;
int32_t state;
struct crom_src_buf *crom_src_buf;
struct crom_src *crom_src;
struct crom_chunk *crom_root;
struct fw_eui64 eui;
int speed;
int maxrec;
uint32_t *config_rom;
char config_rom_buf[CROMSIZE*2]; /* double size for alignment */
};
int fwohci_init(struct fwohci_softc *, int);
void fwohci_ibr(struct fwohci_softc *);
void fwohci_poll(struct fwohci_softc *);
#define FWOHCI_STATE_DEAD (-1)
#define FWOHCI_STATE_INIT 0
#define FWOHCI_STATE_ENABLED 1
#define FWOHCI_STATE_BUSRESET 2
#define FWOHCI_STATE_NORMAL 3
#define OREAD(f, o) (*(volatile uint32_t *)((f)->handle + (o)))
#define OWRITE(f, o, v) (*(volatile uint32_t *)((f)->handle + (o)) = (v))
#define OHCI_VERSION 0x00
#define OHCI_ATRETRY 0x08
#define OHCI_CROMHDR 0x18
#define OHCI_BUS_ID 0x1c
#define OHCI_BUS_OPT 0x20
#define OHCI_BUSIRMC (1U << 31)
#define OHCI_BUSCMC (1 << 30)
#define OHCI_BUSISC (1 << 29)
#define OHCI_BUSBMC (1 << 28)
#define OHCI_BUSPMC (1 << 27)
#define OHCI_BUSFNC OHCI_BUSIRMC | OHCI_BUSCMC | OHCI_BUSISC |\
OHCI_BUSBMC | OHCI_BUSPMC
#define OHCI_EUID_HI 0x24
#define OHCI_EUID_LO 0x28
#define OHCI_CROMPTR 0x34
#define OHCI_HCCCTL 0x50
#define OHCI_HCCCTLCLR 0x54
#define OHCI_AREQHI 0x100
#define OHCI_AREQHICLR 0x104
#define OHCI_AREQLO 0x108
#define OHCI_AREQLOCLR 0x10c
#define OHCI_PREQHI 0x110
#define OHCI_PREQHICLR 0x114
#define OHCI_PREQLO 0x118
#define OHCI_PREQLOCLR 0x11c
#define OHCI_PREQUPPER 0x120
#define OHCI_SID_BUF 0x64
#define OHCI_SID_CNT 0x68
#define OHCI_SID_ERR (1U << 31)
#define OHCI_SID_CNT_MASK 0xffc
#define OHCI_IT_STAT 0x90
#define OHCI_IT_STATCLR 0x94
#define OHCI_IT_MASK 0x98
#define OHCI_IT_MASKCLR 0x9c
#define OHCI_IR_STAT 0xa0
#define OHCI_IR_STATCLR 0xa4
#define OHCI_IR_MASK 0xa8
#define OHCI_IR_MASKCLR 0xac
#define OHCI_LNKCTL 0xe0
#define OHCI_LNKCTLCLR 0xe4
#define OHCI_PHYACCESS 0xec
#define OHCI_CYCLETIMER 0xf0
#define OHCI_DMACTL(off) (off)
#define OHCI_DMACTLCLR(off) (off + 4)
#define OHCI_DMACMD(off) (off + 0xc)
#define OHCI_DMAMATCH(off) (off + 0x10)
#define OHCI_ATQOFF 0x180
#define OHCI_ATQCTL OHCI_ATQOFF
#define OHCI_ATQCTLCLR (OHCI_ATQOFF + 4)
#define OHCI_ATQCMD (OHCI_ATQOFF + 0xc)
#define OHCI_ATQMATCH (OHCI_ATQOFF + 0x10)
#define OHCI_ATSOFF 0x1a0
#define OHCI_ATSCTL OHCI_ATSOFF
#define OHCI_ATSCTLCLR (OHCI_ATSOFF + 4)
#define OHCI_ATSCMD (OHCI_ATSOFF + 0xc)
#define OHCI_ATSMATCH (OHCI_ATSOFF + 0x10)
#define OHCI_ARQOFF 0x1c0
#define OHCI_ARQCTL OHCI_ARQOFF
#define OHCI_ARQCTLCLR (OHCI_ARQOFF + 4)
#define OHCI_ARQCMD (OHCI_ARQOFF + 0xc)
#define OHCI_ARQMATCH (OHCI_ARQOFF + 0x10)
#define OHCI_ARSOFF 0x1e0
#define OHCI_ARSCTL OHCI_ARSOFF
#define OHCI_ARSCTLCLR (OHCI_ARSOFF + 4)
#define OHCI_ARSCMD (OHCI_ARSOFF + 0xc)
#define OHCI_ARSMATCH (OHCI_ARSOFF + 0x10)
#define OHCI_ITOFF(CH) (0x200 + 0x10 * (CH))
#define OHCI_ITCTL(CH) (OHCI_ITOFF(CH))
#define OHCI_ITCTLCLR(CH) (OHCI_ITOFF(CH) + 4)
#define OHCI_ITCMD(CH) (OHCI_ITOFF(CH) + 0xc)
#define OHCI_IROFF(CH) (0x400 + 0x20 * (CH))
#define OHCI_IRCTL(CH) (OHCI_IROFF(CH))
#define OHCI_IRCTLCLR(CH) (OHCI_IROFF(CH) + 4)
#define OHCI_IRCMD(CH) (OHCI_IROFF(CH) + 0xc)
#define OHCI_IRMATCH(CH) (OHCI_IROFF(CH) + 0x10)