ctl.c revision 1.1.2.2
1 1.1.2.2 skrll /* $NetBSD: ctl.c,v 1.1.2.2 2009/03/03 18:29:13 skrll Exp $ */ 2 1.1.2.2 skrll 3 1.1.2.2 skrll /* 4 1.1.2.2 skrll * Copyright (c) 2009 Stephen M. Rumble 5 1.1.2.2 skrll * All rights reserved. 6 1.1.2.2 skrll * 7 1.1.2.2 skrll * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 skrll * modification, are permitted provided that the following conditions 9 1.1.2.2 skrll * are met: 10 1.1.2.2 skrll * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 skrll * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 skrll * documentation and/or other materials provided with the distribution. 15 1.1.2.2 skrll * 3. The name of the author may not be used to endorse or promote products 16 1.1.2.2 skrll * derived from this software without specific prior written permission. 17 1.1.2.2 skrll * 18 1.1.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 1.1.2.2 skrll * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 1.1.2.2 skrll * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 1.1.2.2 skrll * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 1.1.2.2 skrll * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 1.1.2.2 skrll * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 1.1.2.2 skrll * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 1.1.2.2 skrll * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 1.1.2.2 skrll * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 1.1.2.2 skrll * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 1.1.2.2 skrll */ 29 1.1.2.2 skrll 30 1.1.2.2 skrll #include <sys/cdefs.h> 31 1.1.2.2 skrll __KERNEL_RCSID(0, "$NetBSD: ctl.c,v 1.1.2.2 2009/03/03 18:29:13 skrll Exp $"); 32 1.1.2.2 skrll 33 1.1.2.2 skrll #include <sys/param.h> 34 1.1.2.2 skrll #include <sys/kernel.h> 35 1.1.2.2 skrll #include <sys/device.h> 36 1.1.2.2 skrll #include <sys/systm.h> 37 1.1.2.2 skrll #include <sys/callout.h> 38 1.1.2.2 skrll 39 1.1.2.2 skrll #include <machine/cpu.h> 40 1.1.2.2 skrll #include <machine/locore.h> 41 1.1.2.2 skrll #include <machine/autoconf.h> 42 1.1.2.2 skrll #include <machine/bus.h> 43 1.1.2.2 skrll #include <machine/machtype.h> 44 1.1.2.2 skrll #include <machine/sysconf.h> 45 1.1.2.2 skrll 46 1.1.2.2 skrll #include <sgimips/dev/ctlreg.h> 47 1.1.2.2 skrll 48 1.1.2.2 skrll struct ctl_softc { 49 1.1.2.2 skrll struct device sc_dev; 50 1.1.2.2 skrll 51 1.1.2.2 skrll bus_space_tag_t iot; 52 1.1.2.2 skrll bus_space_handle_t ioh; 53 1.1.2.2 skrll 54 1.1.2.2 skrll }; 55 1.1.2.2 skrll 56 1.1.2.2 skrll static int ctl_match(struct device *, struct cfdata *, void *); 57 1.1.2.2 skrll static void ctl_attach(struct device *, struct device *, void *); 58 1.1.2.2 skrll static void ctl_bus_reset(void); 59 1.1.2.2 skrll static void ctl_bus_error(uint32_t, uint32_t, uint32_t, uint32_t); 60 1.1.2.2 skrll static void ctl_watchdog_enable(void); 61 1.1.2.2 skrll static void ctl_watchdog_disable(void); 62 1.1.2.2 skrll static void ctl_watchdog_tickle(void); 63 1.1.2.2 skrll 64 1.1.2.2 skrll #if defined(BLINK) 65 1.1.2.2 skrll static callout_t ctl_blink_ch; 66 1.1.2.2 skrll static void ctl_blink(void *); 67 1.1.2.2 skrll #endif 68 1.1.2.2 skrll 69 1.1.2.2 skrll CFATTACH_DECL(ctl, sizeof(struct ctl_softc), 70 1.1.2.2 skrll ctl_match, ctl_attach, NULL, NULL); 71 1.1.2.2 skrll 72 1.1.2.2 skrll static struct ctl_softc csc; 73 1.1.2.2 skrll 74 1.1.2.2 skrll static int 75 1.1.2.2 skrll ctl_match(struct device * parent, struct cfdata * match, void *aux) 76 1.1.2.2 skrll { 77 1.1.2.2 skrll /* 78 1.1.2.2 skrll * CTL exists on IP6/IP10 systems. 79 1.1.2.2 skrll */ 80 1.1.2.2 skrll if (mach_type == MACH_SGI_IP6 || mach_type == MACH_SGI_IP10) 81 1.1.2.2 skrll return 1; 82 1.1.2.2 skrll else 83 1.1.2.2 skrll return 0; 84 1.1.2.2 skrll } 85 1.1.2.2 skrll 86 1.1.2.2 skrll static void 87 1.1.2.2 skrll ctl_attach(struct device * parent, struct device * self, void *aux) 88 1.1.2.2 skrll { 89 1.1.2.2 skrll struct mainbus_attach_args *ma = aux; 90 1.1.2.2 skrll 91 1.1.2.2 skrll #ifdef BLINK 92 1.1.2.2 skrll callout_init(&ctl_blink_ch, 0); 93 1.1.2.2 skrll #endif 94 1.1.2.2 skrll 95 1.1.2.2 skrll csc.iot = SGIMIPS_BUS_SPACE_NORMAL; 96 1.1.2.2 skrll if (bus_space_map(csc.iot, ma->ma_addr, 0, 97 1.1.2.2 skrll BUS_SPACE_MAP_LINEAR, &csc.ioh)) 98 1.1.2.2 skrll panic("ctl_attach: could not allocate memory\n"); 99 1.1.2.2 skrll 100 1.1.2.2 skrll platform.bus_reset = ctl_bus_reset; 101 1.1.2.2 skrll platform.intr5 = ctl_bus_error; 102 1.1.2.2 skrll platform.watchdog_enable = ctl_watchdog_enable; 103 1.1.2.2 skrll platform.watchdog_disable = ctl_watchdog_disable; 104 1.1.2.2 skrll platform.watchdog_reset = ctl_watchdog_tickle; 105 1.1.2.2 skrll 106 1.1.2.2 skrll bus_space_write_2(csc.iot, csc.ioh, CTL_CPUCTRL, 107 1.1.2.2 skrll (CTL_CPUCTRL_PARITY | CTL_CPUCTRL_SLAVE)); 108 1.1.2.2 skrll 109 1.1.2.2 skrll printf("\n"); 110 1.1.2.2 skrll 111 1.1.2.2 skrll ctl_bus_reset(); 112 1.1.2.2 skrll 113 1.1.2.2 skrll #if defined(BLINK) 114 1.1.2.2 skrll ctl_blink(&csc); 115 1.1.2.2 skrll #endif 116 1.1.2.2 skrll } 117 1.1.2.2 skrll 118 1.1.2.2 skrll static void 119 1.1.2.2 skrll ctl_bus_reset(void) 120 1.1.2.2 skrll { 121 1.1.2.2 skrll 122 1.1.2.2 skrll bus_space_read_1(csc.iot, csc.ioh, CTL_LAN_PAR_CLR); 123 1.1.2.2 skrll bus_space_read_1(csc.iot, csc.ioh, CTL_DMA_PAR_CLR); 124 1.1.2.2 skrll bus_space_read_1(csc.iot, csc.ioh, CTL_CPU_PAR_CLR); 125 1.1.2.2 skrll bus_space_read_1(csc.iot, csc.ioh, CTL_VME_PAR_CLR); 126 1.1.2.2 skrll } 127 1.1.2.2 skrll 128 1.1.2.2 skrll static void 129 1.1.2.2 skrll ctl_bus_error(uint32_t status, uint32_t cause, uint32_t pc, uint32_t ipending) 130 1.1.2.2 skrll { 131 1.1.2.2 skrll 132 1.1.2.2 skrll printf("ctl0: bus error\n"); 133 1.1.2.2 skrll ctl_bus_reset(); 134 1.1.2.2 skrll } 135 1.1.2.2 skrll 136 1.1.2.2 skrll static void 137 1.1.2.2 skrll ctl_watchdog_enable(void) 138 1.1.2.2 skrll { 139 1.1.2.2 skrll uint32_t reg; 140 1.1.2.2 skrll 141 1.1.2.2 skrll /* XXX- doesn't seem to work properly */ 142 1.1.2.2 skrll return; 143 1.1.2.2 skrll 144 1.1.2.2 skrll reg = bus_space_read_2(csc.iot, csc.ioh, CTL_CPUCTRL); 145 1.1.2.2 skrll reg |= CTL_CPUCTRL_WDOG; 146 1.1.2.2 skrll bus_space_write_2(csc.iot, csc.ioh, CTL_CPUCTRL, reg); 147 1.1.2.2 skrll } 148 1.1.2.2 skrll 149 1.1.2.2 skrll static void 150 1.1.2.2 skrll ctl_watchdog_disable(void) 151 1.1.2.2 skrll { 152 1.1.2.2 skrll uint16_t reg; 153 1.1.2.2 skrll 154 1.1.2.2 skrll /* XXX- doesn't seem to work properly */ 155 1.1.2.2 skrll return; 156 1.1.2.2 skrll 157 1.1.2.2 skrll reg = bus_space_read_2(csc.iot, csc.ioh, CTL_CPUCTRL_WDOG); 158 1.1.2.2 skrll reg &= ~(CTL_CPUCTRL_WDOG); 159 1.1.2.2 skrll bus_space_write_2(csc.iot, csc.ioh, CTL_CPUCTRL, reg); 160 1.1.2.2 skrll } 161 1.1.2.2 skrll 162 1.1.2.2 skrll static void 163 1.1.2.2 skrll ctl_watchdog_tickle(void) 164 1.1.2.2 skrll { 165 1.1.2.2 skrll 166 1.1.2.2 skrll ctl_watchdog_disable(); 167 1.1.2.2 skrll ctl_watchdog_enable(); 168 1.1.2.2 skrll } 169 1.1.2.2 skrll 170 1.1.2.2 skrll #if defined(BLINK) 171 1.1.2.2 skrll static void 172 1.1.2.2 skrll ctl_blink(void *self) 173 1.1.2.2 skrll { 174 1.1.2.2 skrll struct ctl_softc *sc = (struct ctl_softc *) self; 175 1.1.2.2 skrll int s, value; 176 1.1.2.2 skrll 177 1.1.2.2 skrll s = splhigh(); 178 1.1.2.2 skrll 179 1.1.2.2 skrll value = bus_space_read_1(sc->iot, sc->ioh, CTL_AUX_CPUCTRL); 180 1.1.2.2 skrll value ^= CTL_AUX_CPUCTRL_CONSLED; 181 1.1.2.2 skrll bus_space_write_1(sc->iot, sc->ioh, CTL_AUX_CPUCTRL, value); 182 1.1.2.2 skrll splx(s); 183 1.1.2.2 skrll 184 1.1.2.2 skrll /* 185 1.1.2.2 skrll * Blink rate is: 186 1.1.2.2 skrll * full cycle every second if completely idle (loadav = 0) 187 1.1.2.2 skrll * full cycle every 2 seconds if loadav = 1 188 1.1.2.2 skrll * full cycle every 3 seconds if loadav = 2 189 1.1.2.2 skrll * etc. 190 1.1.2.2 skrll */ 191 1.1.2.2 skrll s = (((averunnable.ldavg[0] + FSCALE) * hz) >> (FSHIFT + 1)); 192 1.1.2.2 skrll callout_reset(&ctl_blink_ch, s, ctl_blink, sc); 193 1.1.2.2 skrll } 194 1.1.2.2 skrll #endif 195
Indexes created Fri Oct 03 02:09:57 GMT 2025