File: [local] / sys / arch / i386 / pci / pci_machdep.h (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:06:05 2008 UTC (16 years, 4 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
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/* $OpenBSD: pci_machdep.h,v 1.11 2002/03/14 03:15:54 millert Exp $ */
/* $NetBSD: pci_machdep.h,v 1.7 1997/06/06 23:29:18 thorpej Exp $ */
/*
* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
* Copyright (c) 1994 Charles Hannum. 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 following acknowledgement:
* This product includes software developed by Charles Hannum.
* 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.
*/
/*
* Machine-specific definitions for PCI autoconfiguration.
*/
/*
* i386-specific PCI structure and type definitions.
* NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
*
* Configuration tag; created from a {bus,device,function} triplet by
* pci_make_tag(), and passed to pci_conf_read() and pci_conf_write().
* We could instead always pass the {bus,device,function} triplet to
* the read and write routines, but this would cause extra overhead.
*
* Mode 2 is historical and deprecated by the Revision 2.0 specification.
*/
union i386_pci_tag_u {
u_int32_t mode1;
struct {
u_int16_t port;
u_int8_t enable;
u_int8_t forward;
} mode2;
};
extern struct i386_bus_dma_tag pci_bus_dma_tag;
/*
* Types provided to machine-independent PCI code
*/
typedef void *pci_chipset_tag_t;
typedef union i386_pci_tag_u pcitag_t;
typedef
struct {
pcitag_t tag;
int line, pin;
void *link;
} pci_intr_handle_t;
/*
* i386-specific PCI variables and functions.
* NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
*/
extern int pci_mode;
int pci_mode_detect(void);
/*
* Functions provided to machine-independent PCI code.
*/
void pci_attach_hook(struct device *, struct device *,
struct pcibus_attach_args *);
int pci_bus_maxdevs(pci_chipset_tag_t, int);
pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int);
pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
void pci_conf_write(pci_chipset_tag_t, pcitag_t, int,
pcireg_t);
struct pci_attach_args;
int pci_intr_map(struct pci_attach_args *,
pci_intr_handle_t *);
#define pci_intr_line(ih) ((ih).line)
const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
int, int (*)(void *), void *, char *);
void pci_intr_disestablish(pci_chipset_tag_t, void *);
void pci_decompose_tag(pci_chipset_tag_t, pcitag_t,
int *, int *, int *);
/*
* Section 6.2.4, `Miscellaneous Functions' of the PIC Specification,
* says that 255 means `unknown' or `no connection' to the interrupt
* controller on a PC.
*/
#define I386_PCI_INTERRUPT_LINE_NO_CONNECTION 0xff