[src/sommerfeld_i386mp_1]: src/sys/arch/i386/include Add couple hooks, needed...

[jdolecek <jdolecek%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/6d9a42932c1a
branches:  sommerfeld_i386mp_1
changeset: 482453:6d9a42932c1a
user:      jdolecek <jdolecek%NetBSD.org@localhost>
date:      Sun Dec 02 17:02:34 2001 +0000

description:
Add couple hooks, needed primarily for NCR 53C90 MCA card driver:
* add flag to explicitly specify if the DMA should be done as 16bit or 8bit
* add flag to specify the DMA should happen via I/O port
* add new function mca_dma_set_ioport(), to set I/O port to be used for the
  DMA operation

Also clarify copyright (welcome to 2001 :), and couple other minor nits

diffstat:

 sys/arch/i386/include/mca_machdep.h |  102 ++++++++++++++++++++++++++++++++++++
 1 files changed, 102 insertions(+), 0 deletions(-)

diffs (106 lines):

diff -r 1c252ccf06c8 -r 6d9a42932c1a sys/arch/i386/include/mca_machdep.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/i386/include/mca_machdep.h       Sun Dec 02 17:02:34 2001 +0000
@@ -0,0 +1,102 @@
+/*     $NetBSD: mca_machdep.h,v 1.8.2.2 2001/12/02 17:02:34 jdolecek Exp $     */
+
+/*
+ * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
+ * Copyright (c) 1999 Scott D. Telford.  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. 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.
+ */
+
+#ifndef _I386_MCA_MACHDEP_H_
+#define _I386_MCA_MACHDEP_H_
+
+#include <machine/bus.h>
+
+/*
+ * i386-specific definitions for MCA autoconfiguration.
+ */
+
+extern struct i386_bus_dma_tag mca_bus_dma_tag;
+
+/* set to 1 if MCA bus is detected */
+extern int MCA_system;
+
+int    mca_nmi(void);
+
+/*
+ * Types provided to machine-independent MCA code.
+ */
+struct i386_mca_chipset {
+        void * /*struct mca_dma_state*/ ic_dmastate;
+};
+
+typedef struct i386_mca_chipset *mca_chipset_tag_t;
+typedef int mca_intr_handle_t;
+
+/*
+ * Functions provided to machine-independent MCA code.
+ */
+struct mcabus_attach_args;
+
+void   mca_attach_hook(struct device *, struct device *,
+               struct mcabus_attach_args *);
+int    mca_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_dmamap_t *, int);
+void   mca_dma_set_ioport(int dma, u_int16_t port);
+const struct evcnt *mca_intr_evcnt(mca_chipset_tag_t, mca_intr_handle_t);
+void   *mca_intr_establish(mca_chipset_tag_t, mca_intr_handle_t,
+               int, int (*)(void *), void *);
+void   mca_intr_disestablish(mca_chipset_tag_t, void *);
+int    mca_conf_read(mca_chipset_tag_t, int, int);
+void   mca_conf_write(mca_chipset_tag_t, int, int, int);
+void   mca_busprobe(void);
+
+/*
+ * Flags for DMA. Avoid BUS_DMA_BUS1, we share dmamap routines with ISA and
+ * that flag is used for different purpose within _isa_dmamap_*().
+ */
+#define MCABUS_DMA_IOPORT              BUS_DMA_BUS2    /* io-port based DMA */
+#define        MCABUS_DMA_16BIT                BUS_DMA_BUS3    /* 16bit DMA */
+#define        _MCABUS_DMA_USEDMACTRL          BUS_DMA_BUS4    /* internal flag */
+
+/*
+ * These two are used to light disk busy LED on PS/2 during disk operations.
+ */
+void   mca_disk_busy(void);
+void   mca_disk_unbusy(void);
+
+/* MCA register addresses for IBM PS/2 */
+
+#define PS2_SYS_CTL_A          0x92    /* PS/2 System Control Port A */
+#define MCA_MB_SETUP_REG       0x94    /* Motherboard setup register */
+#define MCA_ADAP_SETUP_REG     0x96    /* Adapter setup register */
+#define MCA_POS_REG_BASE       0x100   /* POS registers base address */
+#define MCA_POS_REG_SIZE       8       /* POS registers window size */
+
+#define MCA_POS_REG(n)         (0x100+(n))     /* POS registers 0-7 */
+
+/* Adapter setup register bits */
+
+#define MCA_ADAP_SET           0x08    /* Adapter setup mode */
+#define MCA_ADAP_CHR           0x80    /* Adapter channel reset */
+
+#endif /* _I386_MCA_MACHDEP_H_ */