File: [local] / sys / arch / sparc / dev / dmavar.h (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:03 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: dmavar.h,v 1.7 2006/06/02 20:00:54 miod Exp $ */
/* $NetBSD: dmavar.h,v 1.11 1996/11/27 21:49:53 pk Exp $ */
/*
* Copyright (c) 1994 Peter Galbavy. 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.
*
* 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.
*/
struct dma_softc {
struct device sc_dev; /* us as a device */
struct esp_softc *sc_esp; /* my scsi */
struct le_softc *sc_le; /* my ethernet */
struct dma_regs *sc_regs; /* the registers */
int sc_active; /* DMA active ? */
u_int sc_rev; /* revision */
int sc_burst; /* DVMA burst size in effect */
caddr_t sc_dvmakaddr; /* DVMA cookies */
caddr_t sc_dvmaaddr; /* */
size_t sc_dmasize;
caddr_t *sc_dmaaddr;
size_t *sc_dmalen;
void (*reset)(struct dma_softc *); /* reset routine */
void (*enintr)(struct dma_softc *); /* enable interrupts */
int (*isintr)(struct dma_softc *); /* interrupt ? */
int (*intr)(struct dma_softc *); /* interrupt ! */
int (*setup)(struct dma_softc *, caddr_t *, size_t *, int, size_t *);
void (*go)(struct dma_softc *);
u_int sc_dmactl;
};
#define DMACSR(sc) (sc->sc_regs->csr)
#define DMADDR(sc) (sc->sc_regs->addr)
#define DMACNT(sc) (sc->sc_regs->bcnt)
/* DMA engine functions */
#define DMA_ENINTR(r) (((r)->enintr)(r))
#define DMA_ISINTR(r) (((r)->isintr)(r))
#define DMA_RESET(r) (((r)->reset)(r))
#define DMA_INTR(r) (((r)->intr)(r))
#define DMA_ISACTIVE(r) ((r)->sc_active)
#define DMA_SETUP(a, b, c, d, e) (((a)->setup)(a, b, c, d, e))
#define DMA_GO(r) (((r)->go)(r))
void dma_setuphandlers(struct dma_softc *);