sscom_s3c2800.c revision 1.1
1 /* $NetBSD: sscom_s3c2800.c,v 1.1 2002/11/20 17:52:52 bsh Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Fujitsu Component Limited 5 * Copyright (c) 2002 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 36 #include "opt_sscom.h" 37 #include "opt_ddb.h" 38 #include "opt_kgdb.h" 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/ioctl.h> 43 #include <sys/select.h> 44 #include <sys/tty.h> 45 #include <sys/proc.h> 46 #include <sys/user.h> 47 #include <sys/conf.h> 48 #include <sys/file.h> 49 #include <sys/uio.h> 50 #include <sys/kernel.h> 51 #include <sys/syslog.h> 52 #include <sys/types.h> 53 #include <sys/device.h> 54 #include <sys/malloc.h> 55 #include <sys/timepps.h> 56 #include <sys/vnode.h> 57 58 #include <machine/intr.h> 59 #include <machine/bus.h> 60 61 #include <arm/s3c2xx0/s3c2800reg.h> 62 #include <arm/s3c2xx0/s3c2800var.h> 63 #include <arm/s3c2xx0/sscom_var.h> 64 #include <sys/termios.h> 65 66 #ifndef SSCOM_FREQ 67 #define SSCOM_FREQ 50000000 68 #endif 69 70 static int sscom_match(struct device *, struct cfdata *, void *); 71 static void sscom_attach(struct device *, struct device *, void *); 72 73 CFATTACH_DECL(sscom, sizeof(struct sscom_softc), sscom_match, 74 sscom_attach, NULL, NULL); 75 76 const struct sscom_uart_info s3c2800_uart_config[] = { 77 /* UART 0 */ 78 { 79 0, 80 S3C2800_INT_TXD0, 81 S3C2800_INT_RXD0, 82 S3C2800_INT_UERR0, 83 S3C2800_UART0_BASE, 84 }, 85 /* UART 1 */ 86 { 87 1, 88 S3C2800_INT_TXD1, 89 S3C2800_INT_RXD1, 90 S3C2800_INT_UERR1, 91 S3C2800_UART1_BASE, 92 }, 93 }; 94 95 static int 96 sscom_match(struct device * parent, struct cfdata * cf, void *aux) 97 { 98 struct s3c2xx0_attach_args *sa = aux; 99 int unit = sa->sa_index; 100 101 return unit == 0 || unit == 1; 102 } 103 104 int tx_int(void *); 105 int rx_int(void *); 106 int err_int(void *); 107 108 int 109 tx_int(void *arg) 110 { 111 return sscomintr(arg); 112 } 113 114 int 115 rx_int(void *arg) 116 { 117 return sscomintr(arg); 118 } 119 120 int 121 err_int(void *arg) 122 { 123 return sscomintr(arg); 124 } 125 126 127 static void 128 sscom_attach(struct device * parent, struct device * self, void *aux) 129 { 130 struct sscom_softc *sc = (struct sscom_softc *) self; 131 struct s3c2xx0_attach_args *sa = aux; 132 int unit = sa->sa_index; 133 bus_addr_t iobase = s3c2800_uart_config[unit].iobase; 134 135 136 printf(": UART%d addr=%lx", sa->sa_index, iobase); 137 138 sc->sc_iot = s3c2xx0_softc->sc_iot; 139 sc->sc_unit = unit; 140 sc->sc_frequency = SSCOM_FREQ; 141 142 sc->sc_rx_irqno = S3C2800_INT_RXD0 + sa->sa_index; 143 sc->sc_tx_irqno = S3C2800_INT_TXD0 + sa->sa_index; 144 145 if (bus_space_map(sc->sc_iot, iobase, SSCOM_SIZE, 0, &sc->sc_ioh)) { 146 printf(": failed to map registers\n"); 147 return; 148 } 149 printf("\n"); 150 151 #if 0 152 s3c2800_intr_establish(s3c2800_uart_config[unit].tx_int, 153 IPL_SERIAL, sscomintr, sc); 154 s3c2800_intr_establish(s3c2800_uart_config[unit].rx_int, 155 IPL_SERIAL, sscomintr, sc); 156 s3c2800_intr_establish(s3c2800_uart_config[unit].err_int, 157 IPL_SERIAL, sscomintr, sc); 158 #else 159 s3c2800_intr_establish(s3c2800_uart_config[unit].tx_int, 160 IPL_SERIAL, tx_int, sc); 161 s3c2800_intr_establish(s3c2800_uart_config[unit].rx_int, 162 IPL_SERIAL, rx_int, sc); 163 s3c2800_intr_establish(s3c2800_uart_config[unit].err_int, 164 IPL_SERIAL, err_int, sc); 165 #endif 166 sscom_disable_txrxint(sc); 167 168 sscom_attach_subr(sc); 169 } 170 171 172 173 int 174 s3c2800_sscom_cnattach(bus_space_tag_t iot, int unit, int rate, 175 int frequency, tcflag_t cflag) 176 { 177 return sscom_cnattach(iot, s3c2800_uart_config + unit, 178 rate, frequency, cflag); 179 } 180 #ifdef KGDB 181 int 182 s3c2800_sscom_kgdb_attach(bus_space_tag_t iot, int unit, int rate, 183 int frequency, tcflag_t cflag) 184 { 185 return sscom_kgdb_attach(iot, s3c2800_uart_config + unit, 186 rate, frequency, cflag); 187 } 188 #endif /* KGDB */ 189
Indexes created Wed Oct 22 13:09:56 GMT 2025