Annotation of sys/arch/arm/s3c2xx0/sscom_s3c2800.c, Revision 1.1.1.1
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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