diff options
Diffstat (limited to 'sys/arch/alpha/pci/tsp_pci.c')
| -rw-r--r-- | sys/arch/alpha/pci/tsp_pci.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/sys/arch/alpha/pci/tsp_pci.c b/sys/arch/alpha/pci/tsp_pci.c new file mode 100644 index 00000000000..7daca3130fe --- /dev/null +++ b/sys/arch/alpha/pci/tsp_pci.c @@ -0,0 +1,148 @@ +/* $OpenBSD: tsp_pci.c,v 1.1 2000/11/16 04:50:18 ericj Exp $ */ +/* $NetBSD: tsp_pci.c,v 1.1 1999/06/29 06:46:47 ross Exp $ */ + +/*- + * Copyright (c) 1999 by Ross Harvey. 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 Ross Harvey. + * 4. The name of Ross Harvey may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY ROSS HARVEY ``AS IS'' AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURP0SE + * ARE DISCLAIMED. IN NO EVENT SHALL ROSS HARVEY 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. + * + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/device.h> + +#include <vm/vm.h> +#include <uvm/uvm_extern.h> + +#include <dev/pci/pcireg.h> +#include <dev/pci/pcivar.h> + +#include <machine/autoconf.h> +#include <machine/rpb.h> + +#include <alpha/pci/tsreg.h> +#include <alpha/pci/tsvar.h> + +#define tsp_pci() { Generate ctags(1) key. } + +void tsp_attach_hook __P((struct device *, struct device *, + struct pcibus_attach_args *)); +int tsp_bus_maxdevs __P((void *, int)); +pcitag_t tsp_make_tag __P((void *, int, int, int)); +void tsp_decompose_tag __P((void *, pcitag_t, int *, int *, + int *)); +pcireg_t tsp_conf_read __P((void *, pcitag_t, int)); +void tsp_conf_write __P((void *, pcitag_t, int, pcireg_t)); + +void +tsp_pci_init(pc, v) + pci_chipset_tag_t pc; + void *v; +{ + pc->pc_conf_v = v; + pc->pc_attach_hook = tsp_attach_hook; + pc->pc_bus_maxdevs = tsp_bus_maxdevs; + pc->pc_make_tag = tsp_make_tag; + pc->pc_decompose_tag = tsp_decompose_tag; + pc->pc_conf_read = tsp_conf_read; + pc->pc_conf_write = tsp_conf_write; +} + +void +tsp_attach_hook(parent, self, pba) + struct device *parent, *self; + struct pcibus_attach_args *pba; +{ +} + +int +tsp_bus_maxdevs(cpv, busno) + void *cpv; + int busno; +{ + return 32; +} + +pcitag_t +tsp_make_tag(cpv, b, d, f) + void *cpv; + int b, d, f; +{ + return b << 16 | d << 11 | f << 8; +} + +void +tsp_decompose_tag(cpv, tag, bp, dp, fp) + void *cpv; + pcitag_t tag; + int *bp, *dp, *fp; +{ + if (bp != NULL) + *bp = (tag >> 16) & 0xff; + if (dp != NULL) + *dp = (tag >> 11) & 0x1f; + if (fp != NULL) + *fp = (tag >> 8) & 0x7; +} +/* + * Tsunami makes this a lot easier than it used to be, automatically + * generating type 0 or type 1 cycles, and quietly returning -1 with + * no errors on unanswered probes. + */ +pcireg_t +tsp_conf_read(cpv, tag, offset) + void *cpv; + pcitag_t tag; + int offset; +{ + pcireg_t *datap, data; + struct tsp_config *pcp = cpv; + + datap = S_PAGE(pcp->pc_iobase | P_PCI_CONFIG | tag | (offset & ~3)); + alpha_mb(); + data = *datap; + alpha_mb(); + return data; +} + +void +tsp_conf_write(cpv, tag, offset, data) + void *cpv; + pcitag_t tag; + int offset; + pcireg_t data; +{ + pcireg_t *datap; + struct tsp_config *pcp = cpv; + + datap = S_PAGE(pcp->pc_iobase | P_PCI_CONFIG | tag | (offset & ~3)); + alpha_mb(); + *datap = data; + alpha_mb(); +} |