Annotation of sys/arch/arm/s3c2xx0/sscom_s3c2410.c, Revision 1.1
1.1 ! nbrk 1: /* $NetBSD: sscom_s3c2410.c,v 1.2 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_s3c2410.c,v 1.2 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/s3c2410reg.h>
! 64: #include <arm/s3c2xx0/s3c2410var.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 s3c2410_uart_config[] = {
! 75: /* UART 0 */
! 76: {
! 77: 0,
! 78: S3C2410_INT_TXD0,
! 79: S3C2410_INT_RXD0,
! 80: S3C2410_INT_ERR0,
! 81: S3C2410_UART_BASE(0),
! 82: },
! 83: /* UART 1 */
! 84: {
! 85: 1,
! 86: S3C2410_INT_TXD1,
! 87: S3C2410_INT_RXD1,
! 88: S3C2410_INT_ERR1,
! 89: S3C2410_UART_BASE(1),
! 90: },
! 91: /* UART 2 */
! 92: {
! 93: 2,
! 94: S3C2410_INT_TXD2,
! 95: S3C2410_INT_RXD2,
! 96: S3C2410_INT_ERR2,
! 97: S3C2410_UART_BASE(2),
! 98: },
! 99: };
! 100:
! 101: static int
! 102: sscom_match(struct device *parent, struct cfdata *cf, void *aux)
! 103: {
! 104: struct s3c2xx0_attach_args *sa = aux;
! 105: int unit = sa->sa_index;
! 106:
! 107: return unit == 0 || unit == 1;
! 108: }
! 109:
! 110: static void
! 111: sscom_attach(struct device *parent, struct device *self, void *aux)
! 112: {
! 113: struct sscom_softc *sc = (struct sscom_softc *)self;
! 114: struct s3c2xx0_attach_args *sa = aux;
! 115: int unit = sa->sa_index;
! 116: bus_addr_t iobase = s3c2410_uart_config[unit].iobase;
! 117:
! 118: printf( ": UART%d addr=%lx", sa->sa_index, iobase );
! 119:
! 120: sc->sc_iot = s3c2xx0_softc->sc_iot;
! 121: sc->sc_unit = unit;
! 122: sc->sc_frequency = s3c2xx0_softc->sc_pclk;
! 123:
! 124: sc->sc_rx_irqno = s3c2410_uart_config[sa->sa_index].rx_int;
! 125: sc->sc_tx_irqno = s3c2410_uart_config[sa->sa_index].tx_int;
! 126:
! 127: if (bus_space_map(sc->sc_iot, iobase, SSCOM_SIZE, 0, &sc->sc_ioh)) {
! 128: printf( ": failed to map registers\n" );
! 129: return;
! 130: }
! 131:
! 132: printf("\n");
! 133:
! 134: s3c24x0_intr_establish(s3c2410_uart_config[unit].tx_int,
! 135: IPL_SERIAL, IST_LEVEL, sscomtxintr, sc);
! 136: s3c24x0_intr_establish(s3c2410_uart_config[unit].rx_int,
! 137: IPL_SERIAL, IST_LEVEL, sscomrxintr, sc);
! 138: s3c24x0_intr_establish(s3c2410_uart_config[unit].err_int,
! 139: IPL_SERIAL, IST_LEVEL, sscomrxintr, sc);
! 140: sscom_disable_txrxint(sc);
! 141:
! 142: sscom_attach_subr(sc);
! 143: }
! 144:
! 145:
! 146:
! 147: int
! 148: s3c2410_sscom_cnattach(bus_space_tag_t iot, int unit, int rate,
! 149: int frequency, tcflag_t cflag)
! 150: {
! 151: return sscom_cnattach(iot, s3c2410_uart_config + unit,
! 152: rate, frequency, cflag);
! 153: }
! 154:
! 155: #ifdef KGDB
! 156: int
! 157: s3c2410_sscom_kgdb_attach(bus_space_tag_t iot, int unit, int rate,
! 158: int frequency, tcflag_t cflag)
! 159: {
! 160: return sscom_kgdb_attach(iot, s3c2410_uart_config + unit,
! 161: rate, frequency, cflag);
! 162: }
! 163: #endif /* KGDB */
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