08b6a4cbee
* Update drivers to the latest version of the bus interface. The ISA drivers' use of the new resource api is minimal. Garrett has some much cleaner drivers which should be more easily shared between i386 and alpha. This has only been tested on cia based machines. It should work on lca and apecs but I might have broken something.
413 lines
9.1 KiB
C
413 lines
9.1 KiB
C
/*-
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* Copyright (c) 1998 Doug Rabson
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: lca.c,v 1.3 1998/10/06 14:18:40 dfr Exp $
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <alpha/pci/lcareg.h>
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#include <alpha/pci/lcavar.h>
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#include <alpha/pci/pcibus.h>
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#include <machine/swiz.h>
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#include <machine/intr.h>
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#include <machine/cpuconf.h>
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#define KV(pa) ALPHA_PHYS_TO_K0SEG(pa)
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static devclass_t lca_devclass;
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static device_t lca0; /* XXX only one for now */
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static device_t isa0;
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struct lca_softc {
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int junk;
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};
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#define LCA_SOFTC(dev) (struct lca_softc*) device_get_softc(dev)
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static alpha_chipset_inb_t lca_inb;
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static alpha_chipset_inw_t lca_inw;
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static alpha_chipset_inl_t lca_inl;
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static alpha_chipset_outb_t lca_outb;
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static alpha_chipset_outw_t lca_outw;
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static alpha_chipset_outl_t lca_outl;
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static alpha_chipset_readb_t lca_readb;
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static alpha_chipset_readw_t lca_readw;
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static alpha_chipset_readl_t lca_readl;
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static alpha_chipset_writeb_t lca_writeb;
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static alpha_chipset_writew_t lca_writew;
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static alpha_chipset_writel_t lca_writel;
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static alpha_chipset_maxdevs_t lca_maxdevs;
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static alpha_chipset_cfgreadb_t lca_cfgreadb;
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static alpha_chipset_cfgreadw_t lca_cfgreadw;
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static alpha_chipset_cfgreadl_t lca_cfgreadl;
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static alpha_chipset_cfgwriteb_t lca_cfgwriteb;
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static alpha_chipset_cfgwritew_t lca_cfgwritew;
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static alpha_chipset_cfgwritel_t lca_cfgwritel;
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static alpha_chipset_addrcvt_t lca_cvt_dense;
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static alpha_chipset_read_hae_t lca_read_hae;
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static alpha_chipset_write_hae_t lca_write_hae;
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static alpha_chipset_t lca_chipset = {
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lca_inb,
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lca_inw,
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lca_inl,
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lca_outb,
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lca_outw,
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lca_outl,
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lca_readb,
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lca_readw,
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lca_readl,
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lca_writeb,
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lca_writew,
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lca_writel,
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lca_maxdevs,
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lca_cfgreadb,
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lca_cfgreadw,
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lca_cfgreadl,
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lca_cfgwriteb,
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lca_cfgwritew,
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lca_cfgwritel,
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lca_cvt_dense,
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NULL,
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lca_read_hae,
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lca_write_hae,
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};
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static u_int8_t
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lca_inb(u_int32_t port)
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{
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alpha_mb();
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return SPARSE_READ_BYTE(KV(LCA_PCI_SIO), port);
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}
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static u_int16_t
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lca_inw(u_int32_t port)
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{
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alpha_mb();
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return SPARSE_READ_WORD(KV(LCA_PCI_SIO), port);
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}
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static u_int32_t
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lca_inl(u_int32_t port)
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{
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alpha_mb();
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return SPARSE_READ_LONG(KV(LCA_PCI_SIO), port);
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}
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static void
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lca_outb(u_int32_t port, u_int8_t data)
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{
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SPARSE_WRITE_BYTE(KV(LCA_PCI_SIO), port, data);
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alpha_wmb();
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}
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static void
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lca_outw(u_int32_t port, u_int16_t data)
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{
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SPARSE_WRITE_WORD(KV(LCA_PCI_SIO), port, data);
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alpha_wmb();
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}
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static void
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lca_outl(u_int32_t port, u_int32_t data)
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{
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SPARSE_WRITE_LONG(KV(LCA_PCI_SIO), port, data);
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alpha_wmb();
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}
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/*
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* The LCA HAE is write-only. According to NetBSD, this is where it starts.
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*/
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static u_int32_t lca_hae_mem = 0x80000000;
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/*
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* The first 16Mb ignores the HAE. The next 112Mb uses the HAE to set
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* the high bits of the PCI address.
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*/
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#define REG1 (1UL << 24)
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static __inline void
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lca_set_hae_mem(u_int32_t *pa)
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{
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int s;
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u_int32_t msb;
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if(*pa >= REG1){
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msb = *pa & 0xf8000000;
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*pa -= msb;
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s = splhigh();
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if (msb != lca_hae_mem) {
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lca_hae_mem = msb;
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REGVAL(LCA_IOC_HAE) = lca_hae_mem;
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alpha_mb();
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alpha_mb();
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}
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splx(s);
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}
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}
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static u_int8_t
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lca_readb(u_int32_t pa)
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{
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alpha_mb();
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lca_set_hae_mem(&pa);
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return SPARSE_READ_BYTE(KV(LCA_PCI_SPARSE), pa);
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}
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static u_int16_t
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lca_readw(u_int32_t pa)
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{
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alpha_mb();
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lca_set_hae_mem(&pa);
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return SPARSE_READ_WORD(KV(LCA_PCI_SPARSE), pa);
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}
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static u_int32_t
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lca_readl(u_int32_t pa)
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{
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alpha_mb();
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lca_set_hae_mem(&pa);
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return SPARSE_READ_LONG(KV(LCA_PCI_SPARSE), pa);
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}
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static void
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lca_writeb(u_int32_t pa, u_int8_t data)
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{
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lca_set_hae_mem(&pa);
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SPARSE_WRITE_BYTE(KV(LCA_PCI_SPARSE), pa, data);
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alpha_wmb();
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}
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static void
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lca_writew(u_int32_t pa, u_int16_t data)
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{
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lca_set_hae_mem(&pa);
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SPARSE_WRITE_WORD(KV(LCA_PCI_SPARSE), pa, data);
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alpha_wmb();
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}
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static void
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lca_writel(u_int32_t pa, u_int32_t data)
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{
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lca_set_hae_mem(&pa);
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SPARSE_WRITE_LONG(KV(LCA_PCI_SPARSE), pa, data);
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alpha_wmb();
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}
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static int
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lca_maxdevs(u_int b)
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{
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return 12; /* XXX */
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}
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#define LCA_CFGOFF(b, s, f, r) \
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((b) ? (((b) << 16) | ((s) << 11) | ((f) << 8) | (r)) \
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: ((1 << ((s) + 11)) | ((f) << 8) | (r)))
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#define LCA_TYPE1_SETUP(b,s) if ((b)) { \
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do { \
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(s) = splhigh(); \
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alpha_mb(); \
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REGVAL(LCA_IOC_CONF) = 1; \
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alpha_mb(); \
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} while(0); \
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}
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#define LCA_TYPE1_TEARDOWN(b,s) if ((b)) { \
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do { \
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alpha_mb(); \
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REGVAL(LCA_IOC_CONF) = 0; \
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alpha_mb(); \
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splx((s)); \
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} while(0); \
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}
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#define CFGREAD(b, s, f, r, width, type) \
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type val = ~0; \
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int ipl = 0; \
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vm_offset_t off = LCA_CFGOFF(b, s, f, r); \
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vm_offset_t kv = SPARSE_##width##_ADDRESS(KV(LCA_PCI_CONF), off); \
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alpha_mb(); \
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LCA_TYPE1_SETUP(b,ipl); \
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if (!badaddr((caddr_t)kv, sizeof(type))) { \
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val = SPARSE_##width##_EXTRACT(off, SPARSE_READ(kv)); \
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} \
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LCA_TYPE1_TEARDOWN(b,ipl); \
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return val
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#define CFGWRITE(b, s, f, r, data, width, type) \
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int ipl = 0; \
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vm_offset_t off = LCA_CFGOFF(b, s, f, r); \
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vm_offset_t kv = SPARSE_##width##_ADDRESS(KV(LCA_PCI_CONF), off); \
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alpha_mb(); \
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LCA_TYPE1_SETUP(b,ipl); \
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if (!badaddr((caddr_t)kv, sizeof(type))) { \
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SPARSE_WRITE(kv, SPARSE_##width##_INSERT(off, data)); \
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alpha_wmb(); \
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} \
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LCA_TYPE1_TEARDOWN(b,ipl); \
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return
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static u_int8_t
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lca_cfgreadb(u_int b, u_int s, u_int f, u_int r)
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{
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CFGREAD(b, s, f, r, BYTE, u_int8_t);
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}
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static u_int16_t
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lca_cfgreadw(u_int b, u_int s, u_int f, u_int r)
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{
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CFGREAD(b, s, f, r, WORD, u_int16_t);
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}
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static u_int32_t
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lca_cfgreadl(u_int b, u_int s, u_int f, u_int r)
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{
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CFGREAD(b, s, f, r, LONG, u_int32_t);
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}
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static void
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lca_cfgwriteb(u_int b, u_int s, u_int f, u_int r, u_int8_t data)
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{
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CFGWRITE(b, s, f, r, data, BYTE, u_int8_t);
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}
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static void
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lca_cfgwritew(u_int b, u_int s, u_int f, u_int r, u_int16_t data)
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{
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CFGWRITE(b, s, f, r, data, WORD, u_int16_t);
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}
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static void
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lca_cfgwritel(u_int b, u_int s, u_int f, u_int r, u_int32_t data)
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{
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CFGWRITE(b, s, f, r, data, LONG, u_int16_t);
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}
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static vm_offset_t
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lca_cvt_dense(vm_offset_t addr)
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{
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addr &= 0xffffffffUL;
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return (addr | LCA_PCI_DENSE);
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}
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static u_int64_t
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lca_read_hae(void)
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{
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return lca_hae_mem & 0xf8000000;
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}
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static void
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lca_write_hae(u_int64_t hae)
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{
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u_int32_t pa = hae;
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lca_set_hae_mem(&pa);
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}
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static int lca_probe(device_t dev);
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static int lca_attach(device_t dev);
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static void *lca_create_intr(device_t dev, device_t child, int irq, driver_intr_t *intr, void *arg);
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static int lca_connect_intr(device_t dev, void* ih);
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static device_method_t lca_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, lca_probe),
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DEVMETHOD(device_attach, lca_attach),
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/* Bus interface */
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DEVMETHOD(bus_alloc_resource, pci_alloc_resource),
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DEVMETHOD(bus_release_resource, pci_release_resource),
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DEVMETHOD(bus_activate_resource, pci_activate_resource),
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DEVMETHOD(bus_deactivate_resource, pci_deactivate_resource),
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{ 0, 0 }
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};
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static driver_t lca_driver = {
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"lca",
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lca_methods,
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DRIVER_TYPE_MISC,
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sizeof(struct lca_softc),
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};
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void
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lca_init()
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{
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static int initted = 0;
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if (initted) return;
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initted = 1;
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/* Type 0 PCI conf access. */
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REGVAL64(LCA_IOC_CONF) = 0;
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if (platform.pci_intr_init)
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platform.pci_intr_init();
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chipset = lca_chipset;
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}
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static int
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lca_probe(device_t dev)
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{
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if (lca0)
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return ENXIO;
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lca0 = dev;
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device_set_desc(dev, "21066 PCI adapter"); /* XXX */
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isa0 = device_add_child(dev, "isa", 0, 0);
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return 0;
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}
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static int
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lca_attach(device_t dev)
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{
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struct lca_softc* sc = LCA_SOFTC(dev);
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lca_init();
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chipset.intrdev = isa0;
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set_iointr(alpha_dispatch_intr);
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strcpy(chipset_type, "lca");
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chipset_bwx = 0;
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chipset_ports = LCA_PCI_SIO;
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chipset_memory = LCA_PCI_SPARSE;
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chipset_dense = LCA_PCI_DENSE;
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chipset_hae_mask = IOC_HAE_ADDREXT;
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bus_generic_attach(dev);
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return 0;
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}
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DRIVER_MODULE(lca, root, lca_driver, lca_devclass, 0, 0);
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