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Diffstat (limited to 'sys/arch/hp300/dev/dmareg.h')
| -rw-r--r-- | sys/arch/hp300/dev/dmareg.h | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/sys/arch/hp300/dev/dmareg.h b/sys/arch/hp300/dev/dmareg.h deleted file mode 100644 index 3a5d68b2a77..00000000000 --- a/sys/arch/hp300/dev/dmareg.h +++ /dev/null @@ -1,136 +0,0 @@ -/* $OpenBSD: dmareg.h,v 1.10 2013/02/02 13:34:29 miod Exp $ */ -/* $NetBSD: dmareg.h,v 1.12 1997/05/05 21:02:40 thorpej Exp $ */ - -/* - * Copyright (c) 1982, 1990, 1993 - * The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. - * - * @(#)dmareg.h 8.1 (Berkeley) 6/10/93 - */ - -#include <hp300/dev/iotypes.h> /* XXX */ - -/* - * Hardware layout for the 98620[ABC]: - * 98620A (old 320s?): byte/word DMA in up to 64K chunks - * 98620B (320s only): 98620A with programmable IPL - * 98620C (all others): byte/word/longword DMA in up to 4Gb chunks - */ - -struct dmaBdevice { - v_char *dmaB_addr; - vu_short dmaB_count; - vu_short dmaB_cmd; -#define dmaB_stat dmaB_cmd -} __packed; - -struct dmadevice { - v_char *dma_addr; - vu_int dma_count; - vu_short dma_cmd; - vu_short dma_stat; -} __packed; - -struct dmareg { - struct dmaBdevice dma_Bchan0; - struct dmaBdevice dma_Bchan1; -/* the rest are 98620C specific */ - v_char dma_id[4]; - vu_char dma_cr; - char dma_pad1[0xEB]; - struct dmadevice dma_chan0; - char dma_pad2[0xF4]; - struct dmadevice dma_chan1; -} __packed; - -/* The hp300 has 2 DMA channels. */ -#define NDMACHAN 2 - -/* addresses */ -#define DMA_BASE IIOV(0x500000) - -/* command bits */ -#define DMA_ENAB 0x0001 -#define DMA_WORD 0x0002 -#define DMA_WRT 0x0004 -#define DMA_PRI 0x0008 -#define DMA_IPL(x) (((x) - 3) << 4) -#define DMA_LWORD 0x0100 -#define DMA_START 0x8000 - -/* status bits */ -#define DMA_ARMED 0x01 -#define DMA_INTR 0x02 -#define DMA_ACC 0x04 -#define DMA_HALT 0x08 -#define DMA_BERR 0x10 -#define DMA_ALIGN 0x20 -#define DMA_WRAP 0x40 - -#ifdef _KERNEL -/* - * Macros to attempt to hide the HW differences between the 98620B DMA - * board and the 1TQ4-0401 DMA chip (68020C "board"). The latter - * includes emulation registers for the former but you need to access - * the "native-mode" registers directly in order to do 32-bit DMA. - * - * DMA_CLEAR: Clear interrupt on DMA board. We just use the - * emulation registers on the 98620C as that is easiest. - * DMA_STAT: Read status register. Again, we always read the - * emulation register. Someday we might want to - * look at the 98620C status to get the extended bits. - * DMA_ARM: Load address, count and kick-off DMA. - */ -#define DMA_CLEAR(dc) do { \ - v_int dmaclr; \ - dmaclr = (int)dc->dm_Bhwaddr->dmaB_addr; \ - } while (0); -#define DMA_STAT(dc) dc->dm_Bhwaddr->dmaB_stat - -#if defined(HP320) -#define DMA_ARM(sc, dc) \ - if (sc->sc_type == DMA_B) { \ - struct dmaBdevice *dma = dc->dm_Bhwaddr; \ - dma->dmaB_addr = (v_char *)dc->dm_chain[dc->dm_cur].dc_addr; \ - dma->dmaB_count = dc->dm_chain[dc->dm_cur].dc_count - 1; \ - dma->dmaB_cmd = dc->dm_cmd; \ - } else { \ - struct dmadevice *dma = dc->dm_hwaddr; \ - dma->dma_addr = (v_char *)dc->dm_chain[dc->dm_cur].dc_addr; \ - dma->dma_count = dc->dm_chain[dc->dm_cur].dc_count - 1; \ - dma->dma_cmd = dc->dm_cmd; \ - } -#else -#define DMA_ARM(sc, dc) \ - { \ - struct dmadevice *dma = dc->dm_hwaddr; \ - dma->dma_addr = (v_char *)dc->dm_chain[dc->dm_cur].dc_addr; \ - dma->dma_count = dc->dm_chain[dc->dm_cur].dc_count - 1; \ - dma->dma_cmd = dc->dm_cmd; \ - } -#endif -#endif |