1*02cb47caStsutsui /* $NetBSD: zs_any.c,v 1.17 2008/03/29 19:15:35 tsutsui Exp $ */ 2ec984a04Sfredette 3ec984a04Sfredette /*- 4ec984a04Sfredette * Copyright (c) 1996 The NetBSD Foundation, Inc. 5ec984a04Sfredette * All rights reserved. 6ec984a04Sfredette * 7ec984a04Sfredette * This code is derived from software contributed to The NetBSD Foundation 8ec984a04Sfredette * by Gordon W. Ross and Matthew Fredette. 9ec984a04Sfredette * 10ec984a04Sfredette * Redistribution and use in source and binary forms, with or without 11ec984a04Sfredette * modification, are permitted provided that the following conditions 12ec984a04Sfredette * are met: 13ec984a04Sfredette * 1. Redistributions of source code must retain the above copyright 14ec984a04Sfredette * notice, this list of conditions and the following disclaimer. 15ec984a04Sfredette * 2. Redistributions in binary form must reproduce the above copyright 16ec984a04Sfredette * notice, this list of conditions and the following disclaimer in the 17ec984a04Sfredette * documentation and/or other materials provided with the distribution. 18ec984a04Sfredette * 3. All advertising materials mentioning features or use of this software 19ec984a04Sfredette * must display the following acknowledgement: 20ec984a04Sfredette * This product includes software developed by the NetBSD 21ec984a04Sfredette * Foundation, Inc. and its contributors. 22ec984a04Sfredette * 4. Neither the name of The NetBSD Foundation nor the names of its 23ec984a04Sfredette * contributors may be used to endorse or promote products derived 24ec984a04Sfredette * from this software without specific prior written permission. 25ec984a04Sfredette * 26ec984a04Sfredette * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27ec984a04Sfredette * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28ec984a04Sfredette * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29ec984a04Sfredette * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30ec984a04Sfredette * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31ec984a04Sfredette * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32ec984a04Sfredette * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33ec984a04Sfredette * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34ec984a04Sfredette * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35ec984a04Sfredette * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36ec984a04Sfredette * POSSIBILITY OF SUCH DAMAGE. 37ec984a04Sfredette */ 38ec984a04Sfredette 39ec984a04Sfredette /* 40ec984a04Sfredette * Zilog Z8530 Dual UART driver (machine-dependent part) 41ec984a04Sfredette * 42ec984a04Sfredette * Runs two serial lines per chip using slave drivers. 43ec984a04Sfredette * Plain tty/async lines use the zs_async slave. 44ec984a04Sfredette * Sun keyboard/mouse uses the zs_kbd/zs_ms slaves. 45ec984a04Sfredette */ 46ec984a04Sfredette 47ed517291Slukem #include <sys/cdefs.h> 48*02cb47caStsutsui __KERNEL_RCSID(0, "$NetBSD: zs_any.c,v 1.17 2008/03/29 19:15:35 tsutsui Exp $"); 49ed517291Slukem 50d84d2c6cSlukem #include "opt_kgdb.h" 51d84d2c6cSlukem 52ec984a04Sfredette #include <sys/param.h> 53ec984a04Sfredette #include <sys/systm.h> 54ec984a04Sfredette #include <sys/conf.h> 55ec984a04Sfredette #include <sys/device.h> 56ec984a04Sfredette #include <sys/file.h> 57ec984a04Sfredette #include <sys/ioctl.h> 58ec984a04Sfredette #include <sys/kernel.h> 59ec984a04Sfredette #include <sys/proc.h> 60ec984a04Sfredette #include <sys/tty.h> 61ec984a04Sfredette #include <sys/time.h> 62ec984a04Sfredette #include <sys/syslog.h> 63ec984a04Sfredette 64ec984a04Sfredette #include <machine/autoconf.h> 65ec984a04Sfredette #include <machine/bus.h> 66ec984a04Sfredette #include <machine/z8530var.h> 67ec984a04Sfredette 68ec984a04Sfredette #ifdef KGDB 69ec984a04Sfredette #include <uvm/uvm_extern.h> 70ec984a04Sfredette 71ec984a04Sfredette #include <machine/idprom.h> 72ec984a04Sfredette #include <machine/pmap.h> 73ee28fd70Sfredette #include <sun2/dev/cons.h> 74ec984a04Sfredette #endif 75ec984a04Sfredette 76ec984a04Sfredette #include <sun2/sun2/machdep.h> 77ec984a04Sfredette #include <dev/ic/z8530reg.h> 78877ea058Sfredette #include <dev/sun/kbd_reg.h> 79ec984a04Sfredette 80ec984a04Sfredette /**************************************************************** 81ec984a04Sfredette * Autoconfig 82ec984a04Sfredette ****************************************************************/ 83ec984a04Sfredette 84ec984a04Sfredette /* Definition of the driver for autoconfig. */ 85*02cb47caStsutsui static int zs_any_match(device_t, cfdata_t, void *); 86*02cb47caStsutsui static void zs_any_attach(device_t, device_t, void *); 87ec984a04Sfredette 88*02cb47caStsutsui CFATTACH_DECL_NEW(zs_obio, sizeof(struct zsc_softc), 894bf871a7Sthorpej zs_any_match, zs_any_attach, NULL, NULL); 90ec984a04Sfredette 91*02cb47caStsutsui CFATTACH_DECL_NEW(zs_obmem, sizeof(struct zsc_softc), 924bf871a7Sthorpej zs_any_match, zs_any_attach, NULL, NULL); 93ec984a04Sfredette 94*02cb47caStsutsui CFATTACH_DECL_NEW(zs_mbmem, sizeof(struct zsc_softc), 954bf871a7Sthorpej zs_any_match, zs_any_attach, NULL, NULL); 96ec984a04Sfredette 97ec984a04Sfredette /* 98ec984a04Sfredette * Is the zs chip present? 99ec984a04Sfredette */ 100ec984a04Sfredette static int 101*02cb47caStsutsui zs_any_match(device_t parent, cfdata_t cf, void *aux) 102ec984a04Sfredette { 103451ebb23Sfredette struct mainbus_attach_args *ma = aux; 10470ba9292Sfredette bus_space_handle_t bh; 10570ba9292Sfredette int matched; 106ec984a04Sfredette 107ec984a04Sfredette /* Make sure there is something there... */ 108451ebb23Sfredette if (bus_space_map(ma->ma_bustag, ma->ma_paddr, sizeof(struct zsdevice), 10970ba9292Sfredette 0, &bh)) 11070ba9292Sfredette return (0); 111451ebb23Sfredette matched = (bus_space_peek_1(ma->ma_bustag, bh, 0, NULL) == 0); 112451ebb23Sfredette bus_space_unmap(ma->ma_bustag, bh, sizeof(struct zsdevice)); 11370ba9292Sfredette if (!matched) 114ec984a04Sfredette return (0); 115ec984a04Sfredette 116ec984a04Sfredette /* Default interrupt priority (always splbio==2) */ 117451ebb23Sfredette if (ma->ma_pri == -1) 118451ebb23Sfredette ma->ma_pri = ZSHARD_PRI; 119ec984a04Sfredette 120ec984a04Sfredette return (1); 121ec984a04Sfredette } 122ec984a04Sfredette 123ec984a04Sfredette /* 124ec984a04Sfredette * Attach a found zs. 125ec984a04Sfredette */ 126ec984a04Sfredette static void 127*02cb47caStsutsui zs_any_attach(device_t parent, device_t self, void *aux) 128ec984a04Sfredette { 129*02cb47caStsutsui struct zsc_softc *zsc = device_private(self); 130451ebb23Sfredette struct mainbus_attach_args *ma = aux; 131ec984a04Sfredette bus_space_handle_t bh; 132ec984a04Sfredette 133*02cb47caStsutsui zsc->zsc_dev = self; 134451ebb23Sfredette zsc->zsc_bustag = ma->ma_bustag; 135451ebb23Sfredette zsc->zsc_dmatag = ma->ma_dmatag; 13639cd836eSthorpej /* XXX device_unit() abuse */ 13739cd836eSthorpej zsc->zsc_promunit = device_unit(self); 138ec984a04Sfredette zsc->zsc_node = 0; 139ec984a04Sfredette 140ec984a04Sfredette /* Map in the device. */ 141451ebb23Sfredette if (bus_space_map(ma->ma_bustag, ma->ma_paddr, sizeof(struct zsdevice), 142*02cb47caStsutsui BUS_SPACE_MAP_LINEAR, &bh)) { 143*02cb47caStsutsui aprint_normal("\n"); 144*02cb47caStsutsui panic("%s: can't map", __func__); 145*02cb47caStsutsui } 146ec984a04Sfredette 147ec984a04Sfredette /* This is where we break the bus_space(9) abstraction: */ 148451ebb23Sfredette zs_attach(zsc, (void *)bh, ma->ma_pri); 149451ebb23Sfredette } 150451ebb23Sfredette 151451ebb23Sfredette int 15210b1a7beSchs zs_console_flags(int promunit, int node, int channel) 153451ebb23Sfredette { 154451ebb23Sfredette int cookie, flags = 0; 155451ebb23Sfredette 156451ebb23Sfredette /* 157451ebb23Sfredette * Use `promunit' and `channel' to derive the PROM 158451ebb23Sfredette * stdio handles that correspond to this device. 159451ebb23Sfredette */ 160451ebb23Sfredette if (promunit == 0) 161451ebb23Sfredette cookie = PROMDEV_TTYA + channel; 162451ebb23Sfredette else if (promunit == 1 && channel == 0) 163451ebb23Sfredette cookie = PROMDEV_KBD; 164451ebb23Sfredette else 165451ebb23Sfredette cookie = -1; 166451ebb23Sfredette 167877ea058Sfredette /* 168877ea058Sfredette * We have the console keyboard only if it's a Sun-2 169877ea058Sfredette * keyboard or better. (i.e., not a Sun-1 parallel kbd). 170877ea058Sfredette */ 171877ea058Sfredette if (cookie == prom_stdin() && 172877ea058Sfredette (cookie != PROMDEV_KBD || prom_kbdid() >= KB_SUN2)) 173451ebb23Sfredette flags |= ZS_HWFLAG_CONSOLE_INPUT; 174451ebb23Sfredette 175451ebb23Sfredette /* 176451ebb23Sfredette * Prevent the keyboard from matching the output device 177451ebb23Sfredette * (note that PROMDEV_KBD == PROMDEV_SCREEN == 0!). 178451ebb23Sfredette */ 179451ebb23Sfredette if (cookie != PROMDEV_KBD && cookie == prom_stdout()) 180451ebb23Sfredette flags |= ZS_HWFLAG_CONSOLE_OUTPUT; 181451ebb23Sfredette 182451ebb23Sfredette return (flags); 183ec984a04Sfredette } 184ec984a04Sfredette 185ec984a04Sfredette #ifdef KGDB 186ec984a04Sfredette /* 187ec984a04Sfredette * Find a zs mapped by the PROM. Currently this only works to find 188ec984a04Sfredette * zs0 on obio. 189ec984a04Sfredette */ 190ec984a04Sfredette void * 19110b1a7beSchs zs_find_prom(int unit) 192ec984a04Sfredette { 193ec984a04Sfredette bus_addr_t zs0_phys; 194c207dcd8Stsutsui vaddr_t va; 195ec984a04Sfredette 196ec984a04Sfredette if (unit != 0) 197ec984a04Sfredette return (NULL); 198ec984a04Sfredette 199ec984a04Sfredette /* 200ec984a04Sfredette * The physical address of zs0 is model-dependent. 201ec984a04Sfredette */ 20215adcb96Sthorpej zs0_phys = (cpu_machine_id == ID_SUN2_120 ? 0x002000 : 0x7f2000); 203c207dcd8Stsutsui if (find_prom_map(zs0_phys, PMAP_OBIO, sizeof(struct zsdevice), &va)) 204ec984a04Sfredette return (NULL); 205ec984a04Sfredette 206c207dcd8Stsutsui return (void *)va; 207ec984a04Sfredette } 208ec984a04Sfredette #endif /* KGDB */ 209