1139825Simp/*- 2124469Sgrehan * Copyright 2003 by Peter Grehan. All rights reserved. 3124469Sgrehan * 4124469Sgrehan * Redistribution and use in source and binary forms, with or without 5124469Sgrehan * modification, are permitted provided that the following conditions 6124469Sgrehan * are met: 7124469Sgrehan * 1. Redistributions of source code must retain the above copyright 8124469Sgrehan * notice, this list of conditions and the following disclaimer. 9124469Sgrehan * 2. Redistributions in binary form must reproduce the above copyright 10124469Sgrehan * notice, this list of conditions and the following disclaimer in the 11124469Sgrehan * documentation and/or other materials provided with the distribution. 12124469Sgrehan * 3. The name of the author may not be used to endorse or promote products 13124469Sgrehan * derived from this software without specific prior written permission. 14124469Sgrehan * 15124469Sgrehan * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16124469Sgrehan * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17124469Sgrehan * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18124469Sgrehan * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19124469Sgrehan * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20124469Sgrehan * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21124469Sgrehan * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22124469Sgrehan * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23124469Sgrehan * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24124469Sgrehan * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25124469Sgrehan * SUCH DAMAGE. 26124469Sgrehan * 27124469Sgrehan */ 28124469Sgrehan 29124469Sgrehan#include <sys/cdefs.h> 30124469Sgrehan__FBSDID("$FreeBSD$"); 31124469Sgrehan 32124469Sgrehan#include <sys/param.h> 33124469Sgrehan#include <sys/systm.h> 34131102Sgrehan#include <sys/module.h> 35124469Sgrehan#include <sys/bus.h> 36124469Sgrehan#include <sys/conf.h> 37124469Sgrehan#include <sys/kernel.h> 38124469Sgrehan 39133589Smarius#include <dev/ofw/ofw_bus.h> 40256898Snwhitehorn#include <dev/ofw/ofw_bus_subr.h> 41124469Sgrehan#include <dev/ofw/openfirm.h> 42124469Sgrehan 43124469Sgrehan#include <machine/bus.h> 44124469Sgrehan#include <machine/intr_machdep.h> 45124469Sgrehan#include <machine/md_var.h> 46124469Sgrehan#include <machine/pio.h> 47124469Sgrehan#include <machine/resource.h> 48124469Sgrehan 49124469Sgrehan#include <vm/vm.h> 50124469Sgrehan#include <vm/pmap.h> 51124469Sgrehan 52124469Sgrehan#include <sys/rman.h> 53124469Sgrehan 54124469Sgrehan#include <machine/openpicvar.h> 55124469Sgrehan 56124469Sgrehan#include "pic_if.h" 57124469Sgrehan 58124469Sgrehan/* 59256898Snwhitehorn * OFW interface 60124469Sgrehan */ 61256898Snwhitehornstatic int openpic_ofw_probe(device_t); 62256898Snwhitehornstatic int openpic_ofw_attach(device_t); 63124469Sgrehan 64265969Sianstatic void openpic_ofw_translate_code(device_t, u_int irq, int code, 65265969Sian enum intr_trigger *trig, enum intr_polarity *pol); 66265969Sian 67256898Snwhitehornstatic device_method_t openpic_ofw_methods[] = { 68124469Sgrehan /* Device interface */ 69256898Snwhitehorn DEVMETHOD(device_probe, openpic_ofw_probe), 70256898Snwhitehorn DEVMETHOD(device_attach, openpic_ofw_attach), 71124469Sgrehan 72124469Sgrehan /* PIC interface */ 73209486Snwhitehorn DEVMETHOD(pic_bind, openpic_bind), 74176918Smarcel DEVMETHOD(pic_config, openpic_config), 75171805Smarcel DEVMETHOD(pic_dispatch, openpic_dispatch), 76171805Smarcel DEVMETHOD(pic_enable, openpic_enable), 77171805Smarcel DEVMETHOD(pic_eoi, openpic_eoi), 78176208Smarcel DEVMETHOD(pic_ipi, openpic_ipi), 79171805Smarcel DEVMETHOD(pic_mask, openpic_mask), 80171805Smarcel DEVMETHOD(pic_unmask, openpic_unmask), 81124469Sgrehan 82265969Sian DEVMETHOD(pic_translate_code, openpic_ofw_translate_code), 83265969Sian 84256898Snwhitehorn DEVMETHOD_END 85124469Sgrehan}; 86124469Sgrehan 87256898Snwhitehornstatic driver_t openpic_ofw_driver = { 88171805Smarcel "openpic", 89256898Snwhitehorn openpic_ofw_methods, 90171805Smarcel sizeof(struct openpic_softc), 91124469Sgrehan}; 92124469Sgrehan 93266160SianDRIVER_MODULE(openpic, ofwbus, openpic_ofw_driver, openpic_devclass, 0, 0); 94256898SnwhitehornDRIVER_MODULE(openpic, simplebus, openpic_ofw_driver, openpic_devclass, 0, 0); 95256898SnwhitehornDRIVER_MODULE(openpic, macio, openpic_ofw_driver, openpic_devclass, 0, 0); 96124469Sgrehan 97124469Sgrehanstatic int 98256898Snwhitehornopenpic_ofw_probe(device_t dev) 99124469Sgrehan{ 100133589Smarius const char *type = ofw_bus_get_type(dev); 101124469Sgrehan 102256898Snwhitehorn if (type == NULL) 103124469Sgrehan return (ENXIO); 104124469Sgrehan 105256898Snwhitehorn if (!ofw_bus_is_compatible(dev, "chrp,open-pic") && 106256898Snwhitehorn strcmp(type, "open-pic") != 0) 107256898Snwhitehorn return (ENXIO); 108256898Snwhitehorn 109256898Snwhitehorn /* 110256898Snwhitehorn * On some U4 systems, there is a phantom MPIC in the mac-io cell. 111256898Snwhitehorn * The uninorth driver will pick up the real PIC, so ignore it here. 112256898Snwhitehorn */ 113242315Snwhitehorn if (OF_finddevice("/u4") != (phandle_t)-1) 114242315Snwhitehorn return (ENXIO); 115242315Snwhitehorn 116171805Smarcel device_set_desc(dev, OPENPIC_DEVSTR); 117124469Sgrehan return (0); 118124469Sgrehan} 119209298Snwhitehorn 120218075Smarcelstatic int 121256898Snwhitehornopenpic_ofw_attach(device_t dev) 122209298Snwhitehorn{ 123256898Snwhitehorn phandle_t xref, node; 124256898Snwhitehorn 125256898Snwhitehorn node = ofw_bus_get_node(dev); 126256898Snwhitehorn 127256898Snwhitehorn if (OF_getprop(node, "phandle", &xref, sizeof(xref)) == -1 && 128256898Snwhitehorn OF_getprop(node, "ibm,phandle", &xref, sizeof(xref)) == -1 && 129256898Snwhitehorn OF_getprop(node, "linux,phandle", &xref, sizeof(xref)) == -1) 130256898Snwhitehorn xref = node; 131256898Snwhitehorn 132256898Snwhitehorn return (openpic_common_attach(dev, xref)); 133209298Snwhitehorn} 134256898Snwhitehorn 135265969Sianstatic void 136265969Sianopenpic_ofw_translate_code(device_t dev, u_int irq, int code, 137265969Sian enum intr_trigger *trig, enum intr_polarity *pol) 138265969Sian{ 139265969Sian switch (code) { 140265969Sian case 0: 141265969Sian /* L to H edge */ 142265969Sian *trig = INTR_TRIGGER_EDGE; 143265969Sian *pol = INTR_POLARITY_HIGH; 144265969Sian break; 145265969Sian case 1: 146265969Sian /* Active L level */ 147265969Sian *trig = INTR_TRIGGER_LEVEL; 148265969Sian *pol = INTR_POLARITY_LOW; 149265969Sian break; 150265969Sian case 2: 151265969Sian /* Active H level */ 152265969Sian *trig = INTR_TRIGGER_LEVEL; 153265969Sian *pol = INTR_POLARITY_HIGH; 154265969Sian break; 155265969Sian case 3: 156265969Sian /* H to L edge */ 157265969Sian *trig = INTR_TRIGGER_EDGE; 158265969Sian *pol = INTR_POLARITY_LOW; 159265969Sian break; 160265969Sian default: 161265969Sian *trig = INTR_TRIGGER_CONFORM; 162265969Sian *pol = INTR_POLARITY_CONFORM; 163265969Sian } 164265969Sian} 165265969Sian 166