/*- * Copyright (c) 1998 Doug Rabson * 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 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 AUTHOR 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. * * $Id: lca.c,v 1.2 1998/09/23 21:23:51 msmith Exp $ */ #include #include #include #include #include #include #include #include #include #include #define KV(pa) ALPHA_PHYS_TO_K0SEG(pa) static devclass_t lca_devclass; static device_t lca0; /* XXX only one for now */ static device_t isa0; struct lca_softc { int junk; }; #define LCA_SOFTC(dev) (struct lca_softc*) device_get_softc(dev) static alpha_chipset_inb_t lca_inb; static alpha_chipset_inw_t lca_inw; static alpha_chipset_inl_t lca_inl; static alpha_chipset_outb_t lca_outb; static alpha_chipset_outw_t lca_outw; static alpha_chipset_outl_t lca_outl; static alpha_chipset_readb_t lca_readb; static alpha_chipset_readw_t lca_readw; static alpha_chipset_readl_t lca_readl; static alpha_chipset_writeb_t lca_writeb; static alpha_chipset_writew_t lca_writew; static alpha_chipset_writel_t lca_writel; static alpha_chipset_maxdevs_t lca_maxdevs; static alpha_chipset_cfgreadb_t lca_cfgreadb; static alpha_chipset_cfgreadw_t lca_cfgreadw; static alpha_chipset_cfgreadl_t lca_cfgreadl; static alpha_chipset_cfgwriteb_t lca_cfgwriteb; static alpha_chipset_cfgwritew_t lca_cfgwritew; static alpha_chipset_cfgwritel_t lca_cfgwritel; static alpha_chipset_addrcvt_t lca_cvt_dense; static alpha_chipset_t lca_chipset = { lca_inb, lca_inw, lca_inl, lca_outb, lca_outw, lca_outl, lca_readb, lca_readw, lca_readl, lca_writeb, lca_writew, lca_writel, lca_maxdevs, lca_cfgreadb, lca_cfgreadw, lca_cfgreadl, lca_cfgwriteb, lca_cfgwritew, lca_cfgwritel, lca_cvt_dense, }; static u_int8_t lca_inb(u_int32_t port) { alpha_mb(); return SPARSE_READ_BYTE(KV(LCA_PCI_SIO), port); } static u_int16_t lca_inw(u_int32_t port) { alpha_mb(); return SPARSE_READ_WORD(KV(LCA_PCI_SIO), port); } static u_int32_t lca_inl(u_int32_t port) { alpha_mb(); return SPARSE_READ_LONG(KV(LCA_PCI_SIO), port); } static void lca_outb(u_int32_t port, u_int8_t data) { SPARSE_WRITE_BYTE(KV(LCA_PCI_SIO), port, data); alpha_wmb(); } static void lca_outw(u_int32_t port, u_int16_t data) { SPARSE_WRITE_WORD(KV(LCA_PCI_SIO), port, data); alpha_wmb(); } static void lca_outl(u_int32_t port, u_int32_t data) { SPARSE_WRITE_LONG(KV(LCA_PCI_SIO), port, data); alpha_wmb(); } /* * The LCA HAE is write-only. According to NetBSD, this is where it starts. */ static u_int32_t lca_hae_mem = 0x80000000; /* * The first 16Mb ignores the HAE. The next 112Mb uses the HAE to set * the high bits of the PCI address. */ #define REG1 (1UL << 24) static __inline void lca_set_hae_mem(u_int32_t *pa) { int s; u_int32_t msb; if(*pa >= REG1){ msb = *pa & 0xf8000000; *pa -= msb; s = splhigh(); if (msb != lca_hae_mem) { lca_hae_mem = msb; REGVAL(LCA_IOC_HAE) = lca_hae_mem; alpha_mb(); alpha_mb(); } splx(s); } } static u_int8_t lca_readb(u_int32_t pa) { alpha_mb(); lca_set_hae_mem(&pa); return SPARSE_READ_BYTE(KV(LCA_PCI_SPARSE), pa); } static u_int16_t lca_readw(u_int32_t pa) { alpha_mb(); lca_set_hae_mem(&pa); return SPARSE_READ_WORD(KV(LCA_PCI_SPARSE), pa); } static u_int32_t lca_readl(u_int32_t pa) { alpha_mb(); lca_set_hae_mem(&pa); return SPARSE_READ_LONG(KV(LCA_PCI_SPARSE), pa); } static void lca_writeb(u_int32_t pa, u_int8_t data) { lca_set_hae_mem(&pa); SPARSE_WRITE_BYTE(KV(LCA_PCI_SPARSE), pa, data); alpha_wmb(); } static void lca_writew(u_int32_t pa, u_int16_t data) { lca_set_hae_mem(&pa); SPARSE_WRITE_WORD(KV(LCA_PCI_SPARSE), pa, data); alpha_wmb(); } static void lca_writel(u_int32_t pa, u_int32_t data) { lca_set_hae_mem(&pa); SPARSE_WRITE_LONG(KV(LCA_PCI_SPARSE), pa, data); alpha_wmb(); } static int lca_maxdevs(u_int b) { return 12; /* XXX */ } #define LCA_CFGOFF(b, s, f, r) \ ((b) ? (((b) << 16) | ((s) << 11) | ((f) << 8) | (r)) \ : ((1 << ((s) + 11)) | ((f) << 8) | (r))) #define LCA_TYPE1_SETUP(b,s) if ((b)) { \ do { \ (s) = splhigh(); \ alpha_mb(); \ REGVAL(LCA_IOC_CONF) = 1; \ alpha_mb(); \ } while(0); \ } #define LCA_TYPE1_TEARDOWN(b,s) if ((b)) { \ do { \ alpha_mb(); \ REGVAL(LCA_IOC_CONF) = 0; \ alpha_mb(); \ splx((s)); \ } while(0); \ } #define CFGREAD(b, s, f, r, width, type) \ type val = ~0; \ int ipl = 0; \ vm_offset_t off = LCA_CFGOFF(b, s, f, r); \ vm_offset_t kv = SPARSE_##width##_ADDRESS(KV(LCA_PCI_CONF), off); \ alpha_mb(); \ LCA_TYPE1_SETUP(b,ipl); \ if (!badaddr((caddr_t)kv, sizeof(type))) { \ val = SPARSE_##width##_EXTRACT(off, SPARSE_READ(kv)); \ } \ LCA_TYPE1_TEARDOWN(b,ipl); \ return val #define CFGWRITE(b, s, f, r, data, width, type) \ int ipl = 0; \ vm_offset_t off = LCA_CFGOFF(b, s, f, r); \ vm_offset_t kv = SPARSE_##width##_ADDRESS(KV(LCA_PCI_CONF), off); \ alpha_mb(); \ LCA_TYPE1_SETUP(b,ipl); \ if (!badaddr((caddr_t)kv, sizeof(type))) { \ SPARSE_WRITE(kv, SPARSE_##width##_INSERT(off, data)); \ alpha_wmb(); \ } \ LCA_TYPE1_TEARDOWN(b,ipl); \ return static u_int8_t lca_cfgreadb(u_int b, u_int s, u_int f, u_int r) { CFGREAD(b, s, f, r, BYTE, u_int8_t); } static u_int16_t lca_cfgreadw(u_int b, u_int s, u_int f, u_int r) { CFGREAD(b, s, f, r, WORD, u_int16_t); } static u_int32_t lca_cfgreadl(u_int b, u_int s, u_int f, u_int r) { CFGREAD(b, s, f, r, LONG, u_int32_t); } static void lca_cfgwriteb(u_int b, u_int s, u_int f, u_int r, u_int8_t data) { CFGWRITE(b, s, f, r, data, BYTE, u_int8_t); } static void lca_cfgwritew(u_int b, u_int s, u_int f, u_int r, u_int16_t data) { CFGWRITE(b, s, f, r, data, WORD, u_int16_t); } static void lca_cfgwritel(u_int b, u_int s, u_int f, u_int r, u_int32_t data) { CFGWRITE(b, s, f, r, data, LONG, u_int16_t); } static vm_offset_t lca_cvt_dense(vm_offset_t addr) { addr &= 0xffffffffUL; return (addr | LCA_PCI_DENSE); } static int lca_probe(device_t dev); static int lca_attach(device_t dev); static void *lca_create_intr(device_t dev, device_t child, int irq, driver_intr_t *intr, void *arg); static int lca_connect_intr(device_t dev, void* ih); static device_method_t lca_methods[] = { /* Device interface */ DEVMETHOD(device_probe, lca_probe), DEVMETHOD(device_attach, lca_attach), /* Bus interface */ { 0, 0 } }; static driver_t lca_driver = { "lca", lca_methods, DRIVER_TYPE_MISC, sizeof(struct lca_softc), }; void lca_init() { static int initted = 0; if (initted) return; initted = 1; /* Type 0 PCI conf access. */ REGVAL64(LCA_IOC_CONF) = 0; if (platform.pci_intr_init) platform.pci_intr_init(); chipset = lca_chipset; } static int lca_probe(device_t dev) { if (lca0) return ENXIO; lca0 = dev; device_set_desc(dev, "21066 PCI adapter"); /* XXX */ isa0 = device_add_child(dev, "isa", 0, 0); return 0; } static int lca_attach(device_t dev) { struct lca_softc* sc = LCA_SOFTC(dev); lca_init(); chipset.intrdev = isa0; set_iointr(alpha_dispatch_intr); bus_generic_attach(dev); return 0; } DRIVER_MODULE(lca, root, lca_driver, lca_devclass, 0, 0);