Annotation of sys/arch/arm/s3c2xx0/sscom_s3c2800.c, Revision 1.1
1.1 ! nbrk 1: /* $NetBSD: sscom_s3c2800.c,v 1.6 2005/12/11 12:16:51 christos Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 2002, 2003 Fujitsu Component Limited
! 5: * Copyright (c) 2002, 2003 Genetec Corporation
! 6: * All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. Neither the name of The Fujitsu Component Limited nor the name of
! 17: * Genetec corporation may not be used to endorse or promote products
! 18: * derived from this software without specific prior written permission.
! 19: *
! 20: * THIS SOFTWARE IS PROVIDED BY FUJITSU COMPONENT LIMITED AND GENETEC
! 21: * CORPORATION ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
! 22: * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
! 23: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
! 24: * DISCLAIMED. IN NO EVENT SHALL FUJITSU COMPONENT LIMITED OR GENETEC
! 25: * CORPORATION BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
! 26: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
! 27: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
! 28: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
! 29: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
! 30: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
! 31: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 32: * SUCH DAMAGE.
! 33: */
! 34:
! 35: #include <sys/cdefs.h>
! 36: __KERNEL_RCSID(0, "$NetBSD: sscom_s3c2800.c,v 1.6 2005/12/11 12:16:51 christos Exp $");
! 37:
! 38: #include "opt_sscom.h"
! 39: #include "opt_ddb.h"
! 40: #include "opt_kgdb.h"
! 41:
! 42: #include <sys/param.h>
! 43: #include <sys/systm.h>
! 44: #include <sys/ioctl.h>
! 45: #include <sys/select.h>
! 46: #include <sys/tty.h>
! 47: #include <sys/proc.h>
! 48: #include <sys/user.h>
! 49: #include <sys/conf.h>
! 50: #include <sys/file.h>
! 51: #include <sys/uio.h>
! 52: #include <sys/kernel.h>
! 53: #include <sys/syslog.h>
! 54: #include <sys/types.h>
! 55: #include <sys/device.h>
! 56: #include <sys/malloc.h>
! 57: #include <sys/timepps.h>
! 58: #include <sys/vnode.h>
! 59:
! 60: #include <machine/intr.h>
! 61: #include <machine/bus.h>
! 62:
! 63: #include <arm/s3c2xx0/s3c2800reg.h>
! 64: #include <arm/s3c2xx0/s3c2800var.h>
! 65: #include <arm/s3c2xx0/sscom_var.h>
! 66: #include <sys/termios.h>
! 67:
! 68: static int sscom_match(struct device *, struct cfdata *, void *);
! 69: static void sscom_attach(struct device *, struct device *, void *);
! 70:
! 71: CFATTACH_DECL(sscom, sizeof(struct sscom_softc), sscom_match,
! 72: sscom_attach, NULL, NULL);
! 73:
! 74: const struct sscom_uart_info s3c2800_uart_config[] = {
! 75: /* UART 0 */
! 76: {
! 77: 0,
! 78: S3C2800_INT_TXD0,
! 79: S3C2800_INT_RXD0,
! 80: S3C2800_INT_UERR0,
! 81: S3C2800_UART0_BASE,
! 82: },
! 83: /* UART 1 */
! 84: {
! 85: 1,
! 86: S3C2800_INT_TXD1,
! 87: S3C2800_INT_RXD1,
! 88: S3C2800_INT_UERR1,
! 89: S3C2800_UART1_BASE,
! 90: },
! 91: };
! 92:
! 93: static int
! 94: sscom_match(struct device *parent, struct cfdata *cf, void *aux)
! 95: {
! 96: struct s3c2xx0_attach_args *sa = aux;
! 97: int unit = sa->sa_index;
! 98:
! 99: return unit == 0 || unit == 1;
! 100: }
! 101:
! 102: static void
! 103: sscom_attach(struct device *parent, struct device *self, void *aux)
! 104: {
! 105: struct sscom_softc *sc = (struct sscom_softc *)self;
! 106: struct s3c2xx0_attach_args *sa = aux;
! 107: int unit = sa->sa_index;
! 108: bus_addr_t iobase = s3c2800_uart_config[unit].iobase;
! 109:
! 110: printf( ": UART%d addr=%lx", sa->sa_index, iobase );
! 111:
! 112: sc->sc_iot = s3c2xx0_softc->sc_iot;
! 113: sc->sc_unit = unit;
! 114: sc->sc_frequency = s3c2xx0_softc->sc_pclk;
! 115:
! 116: sc->sc_rx_irqno = S3C2800_INT_RXD0 + sa->sa_index;
! 117: sc->sc_tx_irqno = S3C2800_INT_TXD0 + sa->sa_index;
! 118:
! 119: if (bus_space_map(sc->sc_iot, iobase, SSCOM_SIZE, 0, &sc->sc_ioh)) {
! 120: printf( ": failed to map registers\n" );
! 121: return;
! 122: }
! 123:
! 124: printf("\n");
! 125:
! 126: s3c2800_intr_establish(s3c2800_uart_config[unit].tx_int,
! 127: IPL_SERIAL, IST_LEVEL, sscomtxintr, sc);
! 128: s3c2800_intr_establish(s3c2800_uart_config[unit].rx_int,
! 129: IPL_SERIAL, IST_LEVEL, sscomrxintr, sc);
! 130: s3c2800_intr_establish(s3c2800_uart_config[unit].err_int,
! 131: IPL_SERIAL, IST_LEVEL, sscomrxintr, sc);
! 132: sscom_disable_txrxint(sc);
! 133:
! 134: sscom_attach_subr(sc);
! 135: }
! 136:
! 137:
! 138:
! 139: int
! 140: s3c2800_sscom_cnattach(bus_space_tag_t iot, int unit, int rate,
! 141: int frequency, tcflag_t cflag)
! 142: {
! 143: return sscom_cnattach(iot, s3c2800_uart_config + unit,
! 144: rate, frequency, cflag);
! 145: }
! 146:
! 147: #ifdef KGDB
! 148: int
! 149: s3c2800_sscom_kgdb_attach(bus_space_tag_t iot, int unit, int rate,
! 150: int frequency, tcflag_t cflag)
! 151: {
! 152: return sscom_kgdb_attach(iot, s3c2800_uart_config + unit,
! 153: rate, frequency, cflag);
! 154: }
! 155: #endif /* KGDB */
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