/* $NetBSD: dz_ibus.c,v 1.12 2017/05/18 16:37:06 christos Exp $ */ /*- * Copyright (c) 2002, 2003 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Andrew Doran. * * 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) 1998 Ludd, University of Lule}, Sweden. * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed at Ludd, University of * Lule}, Sweden and its contributors. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. */ #include __KERNEL_RCSID(0, "$NetBSD: dz_ibus.c,v 1.12 2017/05/18 16:37:06 christos Exp $"); #include "dzkbd.h" #include "dzms.h" #include #include #include #include #include #include #include #include #include #include #include #include /* tc_addr_t */ #include #include #include #include #include #include #define DZ_LINE_KBD 0 #define DZ_LINE_MOUSE 1 #define DZ_LINE_CONSOLE 2 #define DZ_LINE_AUX 3 int dz_ibus_match(device_t, cfdata_t, void *); void dz_ibus_attach(device_t, device_t, void *); int dz_ibus_intr(void *); void dz_ibus_cnsetup(paddr_t); int dz_ibus_cngetc(dev_t); void dz_ibus_cnputc(dev_t, int); void dz_ibus_cnpollc(dev_t, int); int dz_ibus_getmajor(void); int dz_ibus_print(void *, const char *); int dzgetc(struct dz_linestate *); void dzputc(struct dz_linestate *, int); CFATTACH_DECL_NEW(dz_ibus, sizeof(struct dz_softc), dz_ibus_match, dz_ibus_attach, NULL, NULL); struct consdev dz_ibus_consdev = { NULL, NULL, dz_ibus_cngetc, dz_ibus_cnputc, dz_ibus_cnpollc, NULL, NULL, NULL, NODEV, CN_NORMAL, }; struct dzregs { uint16_t csr; /* 00 Csr: control/status */ uint16_t p0[3]; uint16_t rbuf; /* 08 Rbuf/Lpr: receive buffer/line param */ uint16_t p1[3]; uint16_t tcr; /* 10 Tcr: transmit console */ uint16_t p2[3]; uint16_t tdr; /* 18 Msr/Tdr: modem status reg/xmit data */ uint16_t p3[3]; } volatile *dzcn; int dz_ibus_iscn; int dz_ibus_consln = -1; int dz_ibus_match(device_t parent, cfdata_t cf, void *aux) { struct ibus_attach_args *iba = aux; if (strcmp(iba->ia_name, "dc") != 0 && strcmp(iba->ia_name, "mdc") != 0 && strcmp(iba->ia_name, "dc7085") != 0) return (0); if (badaddr((void *)iba->ia_addr, 2)) return (0); return (1); } void dz_ibus_attach(device_t parent, device_t self, void *aux) { struct ibus_attach_args *iba = aux; struct dz_softc *sc = device_private(self); volatile struct dzregs *dz; #if NDZMS > 0 || NDZKBD > 0 struct dzkm_attach_args daa; #endif int i; DELAY(100000); sc->sc_dev = self; /* * XXX - This is evil and ugly, but... due to the nature of how * bus_space_* works on pmax it will do for the time being. */ sc->sc_iot = normal_memt; sc->sc_ioh = (bus_space_handle_t)MIPS_PHYS_TO_KSEG1(iba->ia_addr); sc->sc_dr.dr_csr = 0; sc->sc_dr.dr_rbuf = 8; sc->sc_dr.dr_dtr = 17; sc->sc_dr.dr_break = 25; sc->sc_dr.dr_tbuf = 24; sc->sc_dr.dr_tcr = 16; sc->sc_dr.dr_dcd = 25; sc->sc_dr.dr_ring = 24; sc->sc_dr.dr_firstreg = 0; sc->sc_dr.dr_winsize = sizeof(struct dzregs); sc->sc_type = DZ_DZV; dz = (volatile struct dzregs *)sc->sc_ioh; i = dz->tcr; dz->csr = DZ_CSR_MSE | DZ_CSR_TXIE; dz->tcr = 0; wbflush(); DELAY(1000); dz->tcr = 1; wbflush(); DELAY(100000); dz->tcr = i; wbflush(); sc->sc_dsr = 0x0f; /* XXX check if VS has modem ctrl bits */ aprint_normal(": DC-7085, 4 lines"); ibus_intr_establish(parent, (void *)iba->ia_cookie, IPL_TTY, dz_ibus_intr, sc); dzattach(sc, NULL, dz_ibus_consln); DELAY(10000); if (systype == DS_PMAX || systype == DS_3MAX) { #if NDZKBD > 0 if (!dz_ibus_iscn) dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) | DZ_LPR_8_BIT_CHAR | DZ_LINE_KBD; daa.daa_line = DZ_LINE_KBD; daa.daa_flags = (dz_ibus_iscn ? 0 : DZKBD_CONSOLE); config_found(self, &daa, dz_ibus_print); #endif #if NDZMS > 0 dz->rbuf = DZ_LPR_RX_ENABLE | (DZ_LPR_B4800 << 8) | DZ_LPR_8_BIT_CHAR | DZ_LPR_PARENB | DZ_LPR_OPAR | DZ_LINE_MOUSE; daa.daa_line = DZ_LINE_MOUSE; daa.daa_flags = 0; config_found(self, &daa, dz_ibus_print); #endif } } int dz_ibus_getmajor(void) { extern const struct cdevsw dz_cdevsw; static int cache = -1; if (cache != -1) return (cache); return (cache = cdevsw_lookup_major(&dz_cdevsw)); } int dz_ibus_intr(void *cookie) { struct dz_softc *sc; volatile struct dzregs *dzr; unsigned csr; sc = cookie; dzr = (volatile struct dzregs *)sc->sc_ioh; while (((csr = dzr->csr) & (DZ_CSR_RX_DONE | DZ_CSR_TX_READY)) != 0) { if ((csr & DZ_CSR_RX_DONE) != 0) dzrint(sc); if ((csr & DZ_CSR_TX_READY) != 0) dzxint(sc); } return (0); } void dz_ibus_cnsetup(paddr_t addr) { dzcn = (void *)MIPS_PHYS_TO_KSEG1(addr); } void dz_ibus_cnattach(int line) { switch (line) { case 0: line = DZ_LINE_KBD; break; case 4: line = DZ_LINE_CONSOLE; break; default: line = DZ_LINE_AUX; break; } dz_ibus_iscn = 1; dz_ibus_consln = line; /* Disable scanning until init is done. */ dzcn->csr = 0; wbflush(); DELAY(1000); /* Turn on transmitter for the console. */ dzcn->tcr = (1 << line); wbflush(); DELAY(1000); /* Turn scanning back on. */ dzcn->csr = 0x20; wbflush(); DELAY(1000); /* * Point the console at the DZ-11. */ cn_tab = &dz_ibus_consdev; cn_tab->cn_pri = CN_REMOTE; cn_tab->cn_dev = makedev(dz_ibus_getmajor(), line); } int dz_ibus_cngetc(dev_t dev) { int c, line, s; uint16_t rbuf; c = 0; line = minor(dev); s = spltty(); do { while ((dzcn->csr & DZ_CSR_RX_DONE) == 0) DELAY(10); DELAY(10); rbuf = dzcn->rbuf; if (((rbuf >> 8) & 3) != line) continue; c = rbuf & 0x7f; } while (c == 17 || c == 19); /* ignore XON/XOFF */ splx(s); if (c == 13) c = 10; return (c); } void dz_ibus_cnputc(dev_t dev, int ch) { int timeout, s; uint16_t tcr; s = spltty(); /* Don't hang the machine! */ timeout = 1 << 15; /* Remember which lines to scan */ tcr = dzcn->tcr; dzcn->tcr = (1 << minor(dev)); wbflush(); DELAY(10); /* Wait until ready */ while ((dzcn->csr & 0x8000) == 0) if (--timeout < 0) break; DELAY(10); /* Put the character */ dzcn->tdr = ch; timeout = 1 << 15; wbflush(); DELAY(10); /* Wait until ready */ while ((dzcn->csr & 0x8000) == 0) if (--timeout < 0) break; DELAY(10); dzcn->tcr = tcr; wbflush(); DELAY(10); splx(s); } void dz_ibus_cnpollc(dev_t dev, int pollflag) { } #if NDZKBD > 0 || NDZMS > 0 int dz_ibus_print(void *aux, const char *pnp) { struct dzkm_attach_args *daa; daa = aux; if (pnp != NULL) aprint_normal("lkkbd/vsms at %s", pnp); aprint_normal(" line %d", daa->daa_line); return (UNCONF); } int dzgetc(struct dz_linestate *ls) { volatile struct dzregs *dzr; int line, s; uint16_t rbuf; if (ls == NULL) { /* * dzkbd is the only thing that should put us here. */ line = DZ_LINE_KBD; dzr = dzcn; } else { line = ls->dz_line; dzr = (volatile struct dzregs *)ls->dz_sc->sc_ioh; } s = spltty(); for (;;) { while ((dzr->csr & DZ_CSR_RX_DONE) == 0) DELAY(10); DELAY(10); rbuf = dzr->rbuf; DELAY(10); if (((rbuf >> 8) & 3) == line) return (rbuf & 0xff); } splx(s); } void dzputc(struct dz_linestate *ls, int ch) { volatile struct dzregs *dzr; int line; uint16_t tcr; int s; /* * If the dz has already been attached, the MI driver will do the * transmitting: */ if (ls != NULL && ls->dz_sc != NULL) { line = ls->dz_line; dzr = (volatile struct dzregs *)ls->dz_sc->sc_ioh; s = spltty(); putc(ch, &ls->dz_tty->t_outq); tcr = dzr->tcr; if ((tcr & (1 << line)) == 0) { dzr->tcr = tcr | (1 << line); wbflush(); DELAY(10); } dzxint(ls->dz_sc); splx(s); return; } /* Use dzcnputc to do the transmitting. */ dz_ibus_cnputc(makedev(dz_ibus_getmajor(), DZ_LINE_KBD), ch); } #endif /* NDZKBD > 0 || NDZMS > 0 */