/* $NetBSD: com_mca.c,v 1.23 2018/12/08 17:46:14 thorpej Exp $ */ /*- * Copyright (c) 2001 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Charles M. Hannum. * * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ /*- * Copyright (c) 1991 The Regents of the University of California. * 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. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * @(#)com.c 7.5 (Berkeley) 5/16/91 */ /* * This driver attaches serial port boards and internal modems. */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: com_mca.c,v 1.23 2018/12/08 17:46:14 thorpej Exp $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/ioctl.h> #include <sys/select.h> #include <sys/tty.h> #include <sys/proc.h> #include <sys/file.h> #include <sys/uio.h> #include <sys/kernel.h> #include <sys/syslog.h> #include <sys/device.h> #include <sys/intr.h> #include <sys/bus.h> #include <dev/ic/comreg.h> #include <dev/ic/comvar.h> #include <dev/mca/mcavar.h> #include <dev/mca/mcadevs.h> struct com_mca_softc { struct com_softc sc_com; /* real "com" softc */ /* MCA-specific goo. */ void *sc_ih; /* interrupt handler */ }; int com_mca_probe(device_t, cfdata_t , void *); void com_mca_attach(device_t, device_t, void *); static int ibm_modem_getcfg(struct mca_attach_args *, int *, int *); static int neocom1_getcfg(struct mca_attach_args *, int *, int *); static int ibm_mpcom_getcfg(struct mca_attach_args *, int *, int *); CFATTACH_DECL_NEW(com_mca, sizeof(struct com_mca_softc), com_mca_probe, com_mca_attach, NULL, NULL); static const struct com_mca_product { u_int32_t cp_prodid; /* MCA product ID */ const char *cp_name; /* device name */ int (*cp_getcfg)(struct mca_attach_args *, int *iobase, int *irq); /* get device i/o base and irq */ } com_mca_products[] = { { MCA_PRODUCT_IBM_MOD, "IBM Internal Modem", ibm_modem_getcfg }, { MCA_PRODUCT_NEOCOM1, "NeoTecH Single RS-232 Async. Adapter, SM110", neocom1_getcfg }, { MCA_PRODUCT_IBM_MPCOM,"IBM Multi-Protocol Communications Adapter", ibm_mpcom_getcfg }, { 0, NULL, NULL }, }; static const struct com_mca_product *com_mca_lookup(int); static const struct com_mca_product * com_mca_lookup(int ma_id) { const struct com_mca_product *cpp; for (cpp = com_mca_products; cpp->cp_name != NULL; cpp++) if (cpp->cp_prodid == ma_id) return (cpp); return (NULL); } int com_mca_probe(device_t parent, cfdata_t match, void *aux) { struct mca_attach_args *ma = aux; if (com_mca_lookup(ma->ma_id)) return (1); return (0); } void com_mca_attach(device_t parent, device_t self, void *aux) { struct com_mca_softc *isc = device_private(self); struct com_softc *sc = &isc->sc_com; int iobase, irq; struct mca_attach_args *ma = aux; const struct com_mca_product *cpp; bus_space_handle_t ioh; sc->sc_dev = self; cpp = com_mca_lookup(ma->ma_id); /* get iobase and irq */ if ((*cpp->cp_getcfg)(ma, &iobase, &irq)) return; if (bus_space_map(ma->ma_iot, iobase, COM_NPORTS, 0, &ioh)) { aprint_error(": can't map i/o space\n"); return; } com_init_regs(&sc->sc_regs, ma->ma_iot, ioh, iobase); sc->sc_frequency = COM_FREQ; aprint_normal(" slot %d i/o %#x-%#x irq %d", ma->ma_slot + 1, iobase, iobase + COM_NPORTS - 1, irq); com_attach_subr(sc); aprint_normal_dev(self, "%s\n", cpp->cp_name); isc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_SERIAL, comintr, sc); if (isc->sc_ih == NULL) { aprint_error_dev(self, "couldn't establish interrupt handler\n"); return; } /* * com_cleanup: shutdown hook for buggy BIOSs that don't * recognize the UART without a disabled FIFO. * XXX is this necessary on MCA ? --- jdolecek */ if (!pmf_device_register1(self, com_suspend, com_resume, com_cleanup)) aprint_error_dev(self, "could not establish shutdown hook\n"); } /* map serial_X to iobase and irq */ static const struct { int iobase; int irq; } MCA_SERIAL[] = { { 0x03f8, 4 }, /* SERIAL_1 */ { 0x02f8, 3 }, /* SERIAL_2 */ { 0x3220, 3 }, /* SERIAL_3 */ { 0x3228, 3 }, /* SERIAL_4 */ { 0x4220, 3 }, /* SERIAL_5 */ { 0x4228, 3 }, /* SERIAL_6 */ { 0x5220, 3 }, /* SERIAL_7 */ { 0x5228, 3 }, /* SERIAL_8 */ }; /* * Get config for IBM Internal Modem (ID 0xEDFF). This beast doesn't * seem to support even AT commands, it's good as example for adding * other stuff though. */ static int ibm_modem_getcfg(struct mca_attach_args *ma, int *iobasep, int *irqp) { int pos2; int snum; pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2); /* * POS register 2: (adf pos0) * 7 6 5 4 3 2 1 0 * \__/ \__ enable: 0=adapter disabled, 1=adapter enabled * \_____ Serial Configuration: XX=SERIAL_XX */ snum = (pos2 & 0x0e) >> 1; *iobasep = MCA_SERIAL[snum].iobase; *irqp = MCA_SERIAL[snum].irq; return (0); } /* * Get configuration for NeoTecH Single RS-232 Async. Adapter, SM110. */ static int neocom1_getcfg(struct mca_attach_args *ma, int *iobasep, int *irqp) { int pos2, pos3, pos4; static const int neotech_irq[] = { 12, 9, 4, 3 }; pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2); pos3 = mca_conf_read(ma->ma_mc, ma->ma_slot, 3); pos4 = mca_conf_read(ma->ma_mc, ma->ma_slot, 4); /* * POS register 2: (adf pos0) * 7 6 5 4 3 2 1 0 * 1 \_/ \__ enable: 0=adapter disabled, 1=adapter enabled * \____ IRQ: 11=3 10=4 01=9 00=12 * * POS register 3: (adf pos1) * 7 6 5 4 3 2 1 0 * \______/ * \_________ I/O Address: bits 7-3 * * POS register 4: (adf pos2) * 7 6 5 4 3 2 1 0 * \_____________/ * \__ I/O Address: bits 15-8 */ *iobasep = (pos4 << 8) | (pos3 & 0xf8); *irqp = neotech_irq[(pos2 & 0x06) >> 1]; return (0); } /* * Get configuration for IBM Multi-Protocol Communications Adapter. * We only support SERIAL mode, bail out if set to SDLC or BISYNC. */ static int ibm_mpcom_getcfg(struct mca_attach_args *ma, int *iobasep, int *irqp) { int snum, pos2; pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2); /* * For SERIAL mode, bit 4 has to be 0. * * POS register 2: (adf pos0) * 7 6 5 4 3 2 1 0 * 0 \__/ \__ enable: 0=adapter disabled, 1=adapter enabled * \_____ Serial Configuration: XX=SERIAL_XX */ if (pos2 & 0x10) { aprint_error(": not set to SERIAL mode, ignored\n"); return (1); } snum = (pos2 & 0x0e) >> 1; *iobasep = MCA_SERIAL[snum].iobase; *irqp = MCA_SERIAL[snum].irq; return (0); }
