Annotation of sys/arch/mac68k/dev/if_sn_obio.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: if_sn_obio.c,v 1.23 2006/03/23 04:17:23 brad Exp $ */
2: /* $NetBSD: if_sn_obio.c,v 1.9 1997/04/22 20:56:15 scottr Exp $ */
3:
4: /*
5: * Copyright (C) 1997 Allen Briggs
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. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by Allen Briggs
19: * 4. The name of the author may not be used to endorse or promote products
20: * derived from this software without specific prior written permission.
21: *
22: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32: */
33:
34: #include <sys/param.h>
35: #include <sys/device.h>
36: #include <sys/errno.h>
37: #include <sys/ioctl.h>
38: #include <sys/socket.h>
39: #include <sys/syslog.h>
40: #include <sys/systm.h>
41:
42: #include <uvm/uvm_extern.h>
43:
44: #include <net/if.h>
45: #include <netinet/in.h>
46: #include <netinet/if_ether.h>
47:
48: #include <machine/bus.h>
49: #include <machine/cpu.h>
50: #include <machine/viareg.h>
51:
52: #include <mac68k/dev/obiovar.h>
53: #include <mac68k/dev/if_snreg.h>
54: #include <mac68k/dev/if_snvar.h>
55:
56: #define SONIC_REG_BASE 0x50F0A000
57: #define SONIC_PROM_BASE 0x50F08000
58:
59: static int sn_obio_match(struct device *, void *, void *);
60: static void sn_obio_attach(struct device *, struct device *, void *);
61: static int sn_obio_getaddr(struct sn_softc *, u_int8_t *);
62: static int sn_obio_getaddr_kludge(struct sn_softc *, u_int8_t *);
63:
64: struct cfattach sn_obio_ca = {
65: sizeof(struct sn_softc), sn_obio_match, sn_obio_attach
66: };
67:
68: static int
69: sn_obio_match(struct device *parent, void *cf, void *aux)
70: {
71: struct obio_attach_args *oa = (struct obio_attach_args *)aux;
72: bus_space_handle_t bsh;
73: int found = 0;
74:
75: if (!mac68k_machine.sonic)
76: return 0;
77:
78: if (bus_space_map(oa->oa_tag,
79: SONIC_REG_BASE, SN_REGSIZE, 0, &bsh))
80: return 0;
81:
82: if (mac68k_bus_space_probe(oa->oa_tag, bsh, 0, 4))
83: found = 1;
84:
85: bus_space_unmap(oa->oa_tag, bsh, SN_REGSIZE);
86:
87: return found;
88: }
89:
90: /*
91: * Install interface into kernel networking data structures
92: */
93: static void
94: sn_obio_attach(struct device *parent, struct device *self, void *aux)
95: {
96: struct obio_attach_args *oa = (struct obio_attach_args *)aux;
97: struct sn_softc *sc = (void *)self;
98: u_int8_t myaddr[ETHER_ADDR_LEN];
99: int i;
100:
101: sc->snr_dcr = DCR_WAIT0 | DCR_DMABLOCK | DCR_RFT16 | DCR_TFT16;
102: sc->snr_dcr2 = 0;
103:
104: sc->slotno = 9;
105:
106: switch (current_mac_model->machineid) {
107: case MACH_MACC610:
108: case MACH_MACC650:
109: case MACH_MACQ610:
110: case MACH_MACQ650:
111: case MACH_MACQ700:
112: case MACH_MACQ800:
113: case MACH_MACQ900:
114: case MACH_MACQ950:
115: sc->snr_dcr |= DCR_EXBUS;
116: sc->bitmode = 1;
117: break;
118:
119: case MACH_MACLC575:
120: case MACH_MACP580:
121: case MACH_MACQ630:
122: break;
123:
124: case MACH_MACPB500:
125: sc->snr_dcr |= DCR_SYNC | DCR_LBR;
126: sc->bitmode = 0; /* 16 bit interface */
127: break;
128:
129: default:
130: printf(": unsupported machine type\n");
131: return;
132: }
133:
134: sc->sc_regt = oa->oa_tag;
135:
136: if (bus_space_map(sc->sc_regt,
137: SONIC_REG_BASE, SN_REGSIZE, 0, &sc->sc_regh)) {
138: printf(": failed to map space for SONIC regs.\n");
139: return;
140: }
141:
142: /* regs are addressed as words, big-endian. */
143: for (i = 0; i < SN_NREGS; i++) {
144: sc->sc_reg_map[i] = (bus_size_t)((i * 4) + 2);
145: }
146:
147: /*
148: * Kind of kludge this. Comm-slot cards do not really
149: * have a visible type, as far as I can tell at this time,
150: * so assume that MacOS had it properly configured and use
151: * that configuration.
152: */
153: switch (current_mac_model->machineid) {
154: case MACH_MACLC575:
155: case MACH_MACP580:
156: case MACH_MACQ630:
157: NIC_PUT(sc, SNR_CR, CR_RST); wbflush();
158: i = NIC_GET(sc, SNR_DCR);
159: sc->snr_dcr |= (i & 0xfff0);
160: sc->bitmode = (i & DCR_DW) ? 1 : 0;
161: break;
162: default:
163: break;
164: }
165:
166: if (sn_obio_getaddr(sc, myaddr) &&
167: sn_obio_getaddr_kludge(sc, myaddr)) { /* XXX kludge for PB */
168: printf(": failed to get MAC address.\n");
169: bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE);
170: return;
171: }
172:
173: printf(": integrated ethernet adapter, ");
174:
175: /* snsetup returns 1 if something fails */
176: if (snsetup(sc, myaddr)) {
177: bus_space_unmap(sc->sc_regt, sc->sc_regh, SN_REGSIZE);
178: return;
179: }
180:
181: if (mac68k_machine.aux_interrupts)
182: intr_establish(snintr, sc, 3, sc->sc_dev.dv_xname);
183: else
184: add_nubus_intr(sc->slotno, snintr, sc, sc->sc_dev.dv_xname);
185: }
186:
187: static int
188: sn_obio_getaddr(struct sn_softc *sc, u_int8_t *lladdr)
189: {
190: bus_space_handle_t bsh;
191:
192: if (bus_space_map(sc->sc_regt, SONIC_PROM_BASE, PAGE_SIZE, 0, &bsh)) {
193: printf(": failed to map space to read SONIC address.\n%s",
194: sc->sc_dev.dv_xname);
195: return (-1);
196: }
197:
198: if (!mac68k_bus_space_probe(sc->sc_regt, bsh, 0, 1)) {
199: bus_space_unmap(sc->sc_regt, bsh, PAGE_SIZE);
200: return (-1);
201: }
202:
203: sn_get_enaddr(sc->sc_regt, bsh, 0, lladdr);
204:
205: bus_space_unmap(sc->sc_regt, bsh, PAGE_SIZE);
206:
207: return (0);
208: }
209:
210: /*
211: * Assume that the SONIC was initialized in MacOS. This should go away
212: * when we can properly get the MAC address on the PBs.
213: */
214: static int
215: sn_obio_getaddr_kludge(struct sn_softc *sc, u_int8_t *lladdr)
216: {
217: int i, ors = 0;
218:
219: /* Shut down NIC */
220: NIC_PUT(sc, SNR_CR, CR_RST);
221: wbflush();
222:
223: NIC_PUT(sc, SNR_CEP, 15); /* For some reason, Apple fills top first. */
224: wbflush();
225: i = NIC_GET(sc, SNR_CAP2);
226: wbflush();
227:
228: ors |= i;
229: lladdr[5] = i >> 8;
230: lladdr[4] = i;
231:
232: i = NIC_GET(sc, SNR_CAP1);
233: wbflush();
234:
235: ors |= i;
236: lladdr[3] = i >> 8;
237: lladdr[2] = i;
238:
239: i = NIC_GET(sc, SNR_CAP0);
240: wbflush();
241:
242: ors |= i;
243: lladdr[1] = i >> 8;
244: lladdr[0] = i;
245:
246: NIC_PUT(sc, SNR_CR, 0);
247: wbflush();
248:
249: if (ors == 0)
250: return (-1);
251:
252: return (0);
253: }
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