/*- * Copyright (c) 2012 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Paul Fleischer <paul@xpg.dk> * * 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. */ /* Derived from sscom_s3c2410.c */ /* * Copyright (c) 2002, 2003 Fujitsu Component Limited * Copyright (c) 2002, 2003 Genetec Corporation * 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 Fujitsu Component Limited nor the name of * Genetec corporation may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY FUJITSU COMPONENT LIMITED AND GENETEC * CORPORATION ``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 FUJITSU COMPONENT LIMITED OR GENETEC * CORPORATION 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 <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: sscom_s3c2440.c,v 1.4 2014/03/14 21:40:48 matt Exp $"); #include "opt_sscom.h" #include "opt_ddb.h" #include "opt_kgdb.h" #include <sys/param.h> #include <sys/systm.h> #include <sys/device.h> #include <sys/bus.h> #include <machine/intr.h> #include <arm/s3c2xx0/s3c2440reg.h> #include <arm/s3c2xx0/s3c2440var.h> #include <arm/s3c2xx0/sscom_var.h> #include "locators.h" static int sscom_match(device_t, cfdata_t, void *); static void sscom_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(sscom, sizeof(struct sscom_softc), sscom_match, sscom_attach, NULL, NULL); const static struct sscom_uart_info s3c2440_uart_config[] = { /* UART 0 */ { 0, S3C2440_INT_TXD0, S3C2440_INT_RXD0, S3C2440_INT_ERR0, S3C2440_UART_BASE(0), }, /* UART 1 */ { 1, S3C2440_INT_TXD1, S3C2440_INT_RXD1, S3C2440_INT_ERR1, S3C2440_UART_BASE(1), }, /* UART 2 */ { 2, S3C2440_INT_TXD2, S3C2440_INT_RXD2, S3C2440_INT_ERR2, S3C2440_UART_BASE(2), }, }; static int found; static int sscom_match(device_t parent, struct cfdata *cf, void *aux) { struct s3c2xx0_attach_args *sa = aux; int unit = sa->sa_index; if (unit == SSIOCF_INDEX_DEFAULT && found == 0) return 1; return (unit == 0 || unit == 1 || unit == 2); } #define _sscom_intbit(irqno) (1<<((irqno)-S3C2440_SUBIRQ_MIN)) static void s3c2440_change_txrx_interrupts(struct sscom_softc *sc, bool unmask_p, u_int flags) { int intrbits = 0; if (flags & SSCOM_HW_RXINT) intrbits |= _sscom_intbit((sc)->sc_rx_irqno); if (flags & SSCOM_HW_TXINT) intrbits |= _sscom_intbit((sc)->sc_tx_irqno); if (unmask_p) { s3c2440_unmask_subinterrupts(intrbits); } else { s3c2440_mask_subinterrupts(intrbits); } } static void sscom_attach(device_t parent, device_t self, void *aux) { struct sscom_softc *sc = device_private(self); struct s3c2xx0_attach_args *sa = aux; int unit; bus_addr_t iobase; found = 1; unit = (sa->sa_index == SSIOCF_INDEX_DEFAULT) ? 0 : sa->sa_index; iobase = s3c2440_uart_config[unit].iobase; sc->sc_dev = self; sc->sc_iot = s3c2xx0_softc->sc_iot; sc->sc_unit = unit; sc->sc_frequency = s3c2xx0_softc->sc_pclk; sc->sc_change_txrx_interrupts = s3c2440_change_txrx_interrupts; sc->sc_rx_irqno = s3c2440_uart_config[unit].rx_int; sc->sc_tx_irqno = s3c2440_uart_config[unit].tx_int; if (bus_space_map(sc->sc_iot, iobase, SSCOM_SIZE, 0, &sc->sc_ioh)) { printf( ": failed to map registers\n" ); return; } printf("\n"); s3c24x0_intr_establish(s3c2440_uart_config[unit].tx_int, IPL_SERIAL, IST_LEVEL, sscomtxintr, sc); s3c24x0_intr_establish(s3c2440_uart_config[unit].rx_int, IPL_SERIAL, IST_LEVEL, sscomrxintr, sc); s3c24x0_intr_establish(s3c2440_uart_config[unit].err_int, IPL_SERIAL, IST_LEVEL, sscomrxintr, sc); sscom_disable_txrxint(sc); sscom_attach_subr(sc); } int s3c2440_sscom_cnattach(bus_space_tag_t iot, int unit, int rate, int frequency, tcflag_t cflag) { #if defined(SSCOM0CONSOLE) || defined(SSCOM1CONSOLE) return sscom_cnattach(iot, s3c2440_uart_config + unit, rate, frequency, cflag); #else return 0; #endif } #ifdef KGDB int s3c2440_sscom_kgdb_attach(bus_space_tag_t iot, int unit, int rate, int frequency, tcflag_t cflag) { return sscom_kgdb_attach(iot, s3c2440_uart_config + unit, rate, frequency, cflag); } #endif /* KGDB */
