1/* $NetBSD: if_le_ledma.c,v 1.26 2005/12/11 12:23:44 christos Exp $ */
2
3/*-
4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles M. Hannum; Jason R. Thorpe of the Numerical Aerospace
9 * Simulation Facility, NASA Ames Research Center; Paul Kranenburg.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40#include <sys/cdefs.h>
| 1/* $NetBSD: if_le_ledma.c,v 1.26 2005/12/11 12:23:44 christos Exp $ */
2
3/*-
4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles M. Hannum; Jason R. Thorpe of the Numerical Aerospace
9 * Simulation Facility, NASA Ames Research Center; Paul Kranenburg.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40#include <sys/cdefs.h>
|
41__FBSDID("$FreeBSD: head/sys/dev/le/if_le_ledma.c 155093 2006-01-31 14:48:58Z marius $");
| 41__FBSDID("$FreeBSD: head/sys/dev/le/if_le_ledma.c 158663 2006-05-16 21:04:01Z marius $");
|
42
43#include <sys/param.h>
44#include <sys/systm.h>
45#include <sys/bus.h>
46#include <sys/endian.h>
47#include <sys/kernel.h>
48#include <sys/lock.h>
49#include <sys/module.h>
50#include <sys/mutex.h>
51#include <sys/resource.h>
52#include <sys/rman.h>
53#include <sys/socket.h>
54
55#include <dev/ofw/ofw_bus.h>
56
57#include <machine/bus.h>
58#include <machine/ofw_machdep.h>
59#include <machine/resource.h>
60
61#include <net/ethernet.h>
62#include <net/if.h>
63#include <net/if_media.h>
64
65#include <sparc64/sbus/lsi64854reg.h>
66#include <sparc64/sbus/lsi64854var.h>
67
68#include <dev/le/lancereg.h>
69#include <dev/le/lancevar.h>
70#include <dev/le/am7990var.h>
71
| 42
43#include <sys/param.h>
44#include <sys/systm.h>
45#include <sys/bus.h>
46#include <sys/endian.h>
47#include <sys/kernel.h>
48#include <sys/lock.h>
49#include <sys/module.h>
50#include <sys/mutex.h>
51#include <sys/resource.h>
52#include <sys/rman.h>
53#include <sys/socket.h>
54
55#include <dev/ofw/ofw_bus.h>
56
57#include <machine/bus.h>
58#include <machine/ofw_machdep.h>
59#include <machine/resource.h>
60
61#include <net/ethernet.h>
62#include <net/if.h>
63#include <net/if_media.h>
64
65#include <sparc64/sbus/lsi64854reg.h>
66#include <sparc64/sbus/lsi64854var.h>
67
68#include <dev/le/lancereg.h>
69#include <dev/le/lancevar.h>
70#include <dev/le/am7990var.h>
71
|
| 72#define LEDMA_ALIGNMENT 8 /* ring desc. alignmet for NCR92C990 */
|
72#define LEDMA_BOUNDARY (16*1024*1024) /* must not cross 16MB boundary */
73#define LEDMA_MEMSIZE (16*1024) /* LANCE memory size */
74#define LEREG1_RDP 0 /* Register Data Port */
75#define LEREG1_RAP 2 /* Register Address Port */
76
77struct le_dma_softc {
78 struct am7990_softc sc_am7990; /* glue to MI code */
79
80 int sc_rrid;
81 struct resource *sc_rres;
82 bus_space_tag_t sc_regt;
83 bus_space_handle_t sc_regh;
84
85 int sc_irid;
86 struct resource *sc_ires;
87 void *sc_ih;
88
89 bus_dma_tag_t sc_dmat;
90 bus_dmamap_t sc_dmam;
91 bus_addr_t sc_laddr; /* LANCE DMA address */
92
93 struct lsi64854_softc *sc_dma; /* pointer to DMA engine */
94};
95
96static device_probe_t le_dma_probe;
97static device_attach_t le_dma_attach;
98static device_detach_t le_dma_detach;
99static device_resume_t le_dma_resume;
100static device_suspend_t le_dma_suspend;
101
102static device_method_t le_dma_methods[] = {
103 /* Device interface */
104 DEVMETHOD(device_probe, le_dma_probe),
105 DEVMETHOD(device_attach, le_dma_attach),
106 DEVMETHOD(device_detach, le_dma_detach),
107 /* We can just use the suspend method here. */
108 DEVMETHOD(device_shutdown, le_dma_suspend),
109 DEVMETHOD(device_suspend, le_dma_suspend),
110 DEVMETHOD(device_resume, le_dma_resume),
111
112 { 0, 0 }
113};
114
115DEFINE_CLASS_0(le, le_dma_driver, le_dma_methods, sizeof(struct le_dma_softc));
116DRIVER_MODULE(le, dma, le_dma_driver, le_devclass, 0, 0);
117MODULE_DEPEND(le, ether, 1, 1, 1);
118
119/*
120 * Media types supported
121 */
122static const int le_dma_supmedia[] = {
123 IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, 0),
124 IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, 0),
125 IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, 0)
126};
127
128static void le_dma_wrcsr(struct lance_softc *, uint16_t, uint16_t);
129static uint16_t le_dma_rdcsr(struct lance_softc *, uint16_t);
130static void le_dma_setutp(struct lance_softc *);
131static void le_dma_setaui(struct lance_softc *);
132static int le_dma_supmediachange(struct lance_softc *);
133static void le_dma_supmediastatus(struct lance_softc *, struct ifmediareq *);
134static void le_dma_hwreset(struct lance_softc *);
135static int le_dma_hwintr(struct lance_softc *);
136static void le_dma_nocarrier(struct lance_softc *);
137static bus_dmamap_callback_t le_dma_dma_callback;
138
139static void
140le_dma_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
141{
142 struct le_dma_softc *lesc = (struct le_dma_softc *)sc;
143
144 bus_space_write_2(lesc->sc_regt, lesc->sc_regh, LEREG1_RAP, port);
145 bus_space_barrier(lesc->sc_regt, lesc->sc_regh, LEREG1_RAP, 2,
146 BUS_SPACE_BARRIER_WRITE);
147 bus_space_write_2(lesc->sc_regt, lesc->sc_regh, LEREG1_RDP, val);
148}
149
150static uint16_t
151le_dma_rdcsr(struct lance_softc *sc, uint16_t port)
152{
153 struct le_dma_softc *lesc = (struct le_dma_softc *)sc;
154
155 bus_space_write_2(lesc->sc_regt, lesc->sc_regh, LEREG1_RAP, port);
156 bus_space_barrier(lesc->sc_regt, lesc->sc_regh, LEREG1_RAP, 2,
157 BUS_SPACE_BARRIER_WRITE);
158 return (bus_space_read_2(lesc->sc_regt, lesc->sc_regh, LEREG1_RDP));
159}
160
161static void
162le_dma_setutp(struct lance_softc *sc)
163{
164 struct lsi64854_softc *dma = ((struct le_dma_softc *)sc)->sc_dma;
165
166 L64854_SCSR(dma, L64854_GCSR(dma) | E_TP_AUI);
167 DELAY(20000); /* We must not touch the LANCE chip for 20ms. */
168}
169
170static void
171le_dma_setaui(struct lance_softc *sc)
172{
173 struct lsi64854_softc *dma = ((struct le_dma_softc *)sc)->sc_dma;
174
175 L64854_SCSR(dma, L64854_GCSR(dma) & ~E_TP_AUI);
176 DELAY(20000); /* We must not touch the LANCE chip for 20ms. */
177}
178
179static int
180le_dma_supmediachange(struct lance_softc *sc)
181{
182 struct ifmedia *ifm = &sc->sc_media;
183
184 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
185 return (EINVAL);
186
187 /*
188 * Switch to the selected media. If autoselect is set, we don't
189 * really have to do anything. We'll switch to the other media
190 * when we detect loss of carrier.
191 */
192 switch (IFM_SUBTYPE(ifm->ifm_media)) {
193 case IFM_10_T:
194 le_dma_setutp(sc);
195 break;
196
197 case IFM_10_5:
198 le_dma_setaui(sc);
199 break;
200
201 case IFM_AUTO:
202 break;
203
204 default:
205 return (EINVAL);
206 }
207
208 return (0);
209}
210
211static void
212le_dma_supmediastatus(struct lance_softc *sc, struct ifmediareq *ifmr)
213{
214 struct lsi64854_softc *dma = ((struct le_dma_softc *)sc)->sc_dma;
215
216 /*
217 * Notify the world which media we're currently using.
218 */
219 if (L64854_GCSR(dma) & E_TP_AUI)
220 ifmr->ifm_active = IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, 0);
221 else
222 ifmr->ifm_active = IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, 0);
223}
224
225static void
226le_dma_hwreset(struct lance_softc *sc)
227{
228 struct le_dma_softc *lesc = (struct le_dma_softc *)sc;
229 struct lsi64854_softc *dma = lesc->sc_dma;
230 uint32_t aui_bit, csr;
231
232 /*
233 * Reset DMA channel.
234 */
235 csr = L64854_GCSR(dma);
236 aui_bit = csr & E_TP_AUI;
237 DMA_RESET(dma);
238
239 /* Write bits 24-31 of Lance address. */
240 bus_space_write_4(dma->sc_regt, dma->sc_regh, L64854_REG_ENBAR,
241 lesc->sc_laddr & 0xff000000);
242
243 DMA_ENINTR(dma);
244
245 /*
246 * Disable E-cache invalidates on chip writes.
247 * Retain previous cable selection bit.
248 */
249 csr = L64854_GCSR(dma);
250 csr |= (E_DSBL_WR_INVAL | aui_bit);
251 L64854_SCSR(dma, csr);
252 DELAY(20000); /* We must not touch the LANCE chip for 20ms. */
253}
254
255static int
256le_dma_hwintr(struct lance_softc *sc)
257{
258 struct le_dma_softc *lesc = (struct le_dma_softc *)sc;
259 struct lsi64854_softc *dma = lesc->sc_dma;
260
261 return (DMA_INTR(dma));
262}
263
264static void
265le_dma_nocarrier(struct lance_softc *sc)
266{
267 struct le_dma_softc *lesc = (struct le_dma_softc *)sc;
268
269 /*
270 * Check if the user has requested a certain cable type, and
271 * if so, honor that request.
272 */
273
274 if (L64854_GCSR(lesc->sc_dma) & E_TP_AUI) {
275 switch (IFM_SUBTYPE(sc->sc_media.ifm_media)) {
276 case IFM_10_5:
277 case IFM_AUTO:
278 if_printf(sc->sc_ifp, "lost carrier on UTP port, "
279 "switching to AUI port\n");
280 le_dma_setaui(sc);
281 }
282 } else {
283 switch (IFM_SUBTYPE(sc->sc_media.ifm_media)) {
284 case IFM_10_T:
285 case IFM_AUTO:
286 if_printf(sc->sc_ifp, "lost carrier on AUI port, "
287 "switching to UTP port\n");
288 le_dma_setutp(sc);
289 }
290 }
291}
292
293static void
294le_dma_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
295{
296 struct le_dma_softc *lesc = (struct le_dma_softc *)xsc;
297
298 if (error != 0)
299 return;
300 KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__));
301 lesc->sc_laddr = segs[0].ds_addr;
302}
303
304static int
305le_dma_probe(device_t dev)
306{
307
308 if (strcmp(ofw_bus_get_name(dev), "le") == 0) {
309 device_set_desc(dev, "LANCE Ethernet");
310 return (BUS_PROBE_DEFAULT);
311 }
312 return (ENXIO);
313}
314
315static int
316le_dma_attach(device_t dev)
317{
318 struct le_dma_softc *lesc;
319 struct lsi64854_softc *dma;
320 struct lance_softc *sc;
321 int error;
322
323 lesc = device_get_softc(dev);
324 sc = &lesc->sc_am7990.lsc;
325
326 LE_LOCK_INIT(sc, device_get_nameunit(dev));
327
328 /*
329 * Establish link to `ledma' device.
330 * XXX hackery.
331 */
332 dma = (struct lsi64854_softc *)device_get_softc(device_get_parent(dev));
333 lesc->sc_dma = dma;
334 lesc->sc_dma->sc_client = lesc;
335
336 lesc->sc_rrid = 0;
337 lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
338 &lesc->sc_rrid, RF_ACTIVE);
339 if (lesc->sc_rres == NULL) {
340 device_printf(dev, "cannot allocate registers\n");
341 error = ENXIO;
342 goto fail_mtx;
343 }
344 lesc->sc_regt = rman_get_bustag(lesc->sc_rres);
345 lesc->sc_regh = rman_get_bushandle(lesc->sc_rres);
346
347 lesc->sc_irid = 0;
348 if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ,
349 &lesc->sc_irid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
350 device_printf(dev, "cannot allocate interrupt\n");
351 error = ENXIO;
352 goto fail_rres;
353 }
354
355 sc->sc_memsize = LEDMA_MEMSIZE;
356 error = bus_dma_tag_create(
357 dma->sc_parent_dmat, /* parent */
| 73#define LEDMA_BOUNDARY (16*1024*1024) /* must not cross 16MB boundary */
74#define LEDMA_MEMSIZE (16*1024) /* LANCE memory size */
75#define LEREG1_RDP 0 /* Register Data Port */
76#define LEREG1_RAP 2 /* Register Address Port */
77
78struct le_dma_softc {
79 struct am7990_softc sc_am7990; /* glue to MI code */
80
81 int sc_rrid;
82 struct resource *sc_rres;
83 bus_space_tag_t sc_regt;
84 bus_space_handle_t sc_regh;
85
86 int sc_irid;
87 struct resource *sc_ires;
88 void *sc_ih;
89
90 bus_dma_tag_t sc_dmat;
91 bus_dmamap_t sc_dmam;
92 bus_addr_t sc_laddr; /* LANCE DMA address */
93
94 struct lsi64854_softc *sc_dma; /* pointer to DMA engine */
95};
96
97static device_probe_t le_dma_probe;
98static device_attach_t le_dma_attach;
99static device_detach_t le_dma_detach;
100static device_resume_t le_dma_resume;
101static device_suspend_t le_dma_suspend;
102
103static device_method_t le_dma_methods[] = {
104 /* Device interface */
105 DEVMETHOD(device_probe, le_dma_probe),
106 DEVMETHOD(device_attach, le_dma_attach),
107 DEVMETHOD(device_detach, le_dma_detach),
108 /* We can just use the suspend method here. */
109 DEVMETHOD(device_shutdown, le_dma_suspend),
110 DEVMETHOD(device_suspend, le_dma_suspend),
111 DEVMETHOD(device_resume, le_dma_resume),
112
113 { 0, 0 }
114};
115
116DEFINE_CLASS_0(le, le_dma_driver, le_dma_methods, sizeof(struct le_dma_softc));
117DRIVER_MODULE(le, dma, le_dma_driver, le_devclass, 0, 0);
118MODULE_DEPEND(le, ether, 1, 1, 1);
119
120/*
121 * Media types supported
122 */
123static const int le_dma_supmedia[] = {
124 IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, 0),
125 IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, 0),
126 IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, 0)
127};
128
129static void le_dma_wrcsr(struct lance_softc *, uint16_t, uint16_t);
130static uint16_t le_dma_rdcsr(struct lance_softc *, uint16_t);
131static void le_dma_setutp(struct lance_softc *);
132static void le_dma_setaui(struct lance_softc *);
133static int le_dma_supmediachange(struct lance_softc *);
134static void le_dma_supmediastatus(struct lance_softc *, struct ifmediareq *);
135static void le_dma_hwreset(struct lance_softc *);
136static int le_dma_hwintr(struct lance_softc *);
137static void le_dma_nocarrier(struct lance_softc *);
138static bus_dmamap_callback_t le_dma_dma_callback;
139
140static void
141le_dma_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
142{
143 struct le_dma_softc *lesc = (struct le_dma_softc *)sc;
144
145 bus_space_write_2(lesc->sc_regt, lesc->sc_regh, LEREG1_RAP, port);
146 bus_space_barrier(lesc->sc_regt, lesc->sc_regh, LEREG1_RAP, 2,
147 BUS_SPACE_BARRIER_WRITE);
148 bus_space_write_2(lesc->sc_regt, lesc->sc_regh, LEREG1_RDP, val);
149}
150
151static uint16_t
152le_dma_rdcsr(struct lance_softc *sc, uint16_t port)
153{
154 struct le_dma_softc *lesc = (struct le_dma_softc *)sc;
155
156 bus_space_write_2(lesc->sc_regt, lesc->sc_regh, LEREG1_RAP, port);
157 bus_space_barrier(lesc->sc_regt, lesc->sc_regh, LEREG1_RAP, 2,
158 BUS_SPACE_BARRIER_WRITE);
159 return (bus_space_read_2(lesc->sc_regt, lesc->sc_regh, LEREG1_RDP));
160}
161
162static void
163le_dma_setutp(struct lance_softc *sc)
164{
165 struct lsi64854_softc *dma = ((struct le_dma_softc *)sc)->sc_dma;
166
167 L64854_SCSR(dma, L64854_GCSR(dma) | E_TP_AUI);
168 DELAY(20000); /* We must not touch the LANCE chip for 20ms. */
169}
170
171static void
172le_dma_setaui(struct lance_softc *sc)
173{
174 struct lsi64854_softc *dma = ((struct le_dma_softc *)sc)->sc_dma;
175
176 L64854_SCSR(dma, L64854_GCSR(dma) & ~E_TP_AUI);
177 DELAY(20000); /* We must not touch the LANCE chip for 20ms. */
178}
179
180static int
181le_dma_supmediachange(struct lance_softc *sc)
182{
183 struct ifmedia *ifm = &sc->sc_media;
184
185 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
186 return (EINVAL);
187
188 /*
189 * Switch to the selected media. If autoselect is set, we don't
190 * really have to do anything. We'll switch to the other media
191 * when we detect loss of carrier.
192 */
193 switch (IFM_SUBTYPE(ifm->ifm_media)) {
194 case IFM_10_T:
195 le_dma_setutp(sc);
196 break;
197
198 case IFM_10_5:
199 le_dma_setaui(sc);
200 break;
201
202 case IFM_AUTO:
203 break;
204
205 default:
206 return (EINVAL);
207 }
208
209 return (0);
210}
211
212static void
213le_dma_supmediastatus(struct lance_softc *sc, struct ifmediareq *ifmr)
214{
215 struct lsi64854_softc *dma = ((struct le_dma_softc *)sc)->sc_dma;
216
217 /*
218 * Notify the world which media we're currently using.
219 */
220 if (L64854_GCSR(dma) & E_TP_AUI)
221 ifmr->ifm_active = IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, 0);
222 else
223 ifmr->ifm_active = IFM_MAKEWORD(IFM_ETHER, IFM_10_5, 0, 0);
224}
225
226static void
227le_dma_hwreset(struct lance_softc *sc)
228{
229 struct le_dma_softc *lesc = (struct le_dma_softc *)sc;
230 struct lsi64854_softc *dma = lesc->sc_dma;
231 uint32_t aui_bit, csr;
232
233 /*
234 * Reset DMA channel.
235 */
236 csr = L64854_GCSR(dma);
237 aui_bit = csr & E_TP_AUI;
238 DMA_RESET(dma);
239
240 /* Write bits 24-31 of Lance address. */
241 bus_space_write_4(dma->sc_regt, dma->sc_regh, L64854_REG_ENBAR,
242 lesc->sc_laddr & 0xff000000);
243
244 DMA_ENINTR(dma);
245
246 /*
247 * Disable E-cache invalidates on chip writes.
248 * Retain previous cable selection bit.
249 */
250 csr = L64854_GCSR(dma);
251 csr |= (E_DSBL_WR_INVAL | aui_bit);
252 L64854_SCSR(dma, csr);
253 DELAY(20000); /* We must not touch the LANCE chip for 20ms. */
254}
255
256static int
257le_dma_hwintr(struct lance_softc *sc)
258{
259 struct le_dma_softc *lesc = (struct le_dma_softc *)sc;
260 struct lsi64854_softc *dma = lesc->sc_dma;
261
262 return (DMA_INTR(dma));
263}
264
265static void
266le_dma_nocarrier(struct lance_softc *sc)
267{
268 struct le_dma_softc *lesc = (struct le_dma_softc *)sc;
269
270 /*
271 * Check if the user has requested a certain cable type, and
272 * if so, honor that request.
273 */
274
275 if (L64854_GCSR(lesc->sc_dma) & E_TP_AUI) {
276 switch (IFM_SUBTYPE(sc->sc_media.ifm_media)) {
277 case IFM_10_5:
278 case IFM_AUTO:
279 if_printf(sc->sc_ifp, "lost carrier on UTP port, "
280 "switching to AUI port\n");
281 le_dma_setaui(sc);
282 }
283 } else {
284 switch (IFM_SUBTYPE(sc->sc_media.ifm_media)) {
285 case IFM_10_T:
286 case IFM_AUTO:
287 if_printf(sc->sc_ifp, "lost carrier on AUI port, "
288 "switching to UTP port\n");
289 le_dma_setutp(sc);
290 }
291 }
292}
293
294static void
295le_dma_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
296{
297 struct le_dma_softc *lesc = (struct le_dma_softc *)xsc;
298
299 if (error != 0)
300 return;
301 KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__));
302 lesc->sc_laddr = segs[0].ds_addr;
303}
304
305static int
306le_dma_probe(device_t dev)
307{
308
309 if (strcmp(ofw_bus_get_name(dev), "le") == 0) {
310 device_set_desc(dev, "LANCE Ethernet");
311 return (BUS_PROBE_DEFAULT);
312 }
313 return (ENXIO);
314}
315
316static int
317le_dma_attach(device_t dev)
318{
319 struct le_dma_softc *lesc;
320 struct lsi64854_softc *dma;
321 struct lance_softc *sc;
322 int error;
323
324 lesc = device_get_softc(dev);
325 sc = &lesc->sc_am7990.lsc;
326
327 LE_LOCK_INIT(sc, device_get_nameunit(dev));
328
329 /*
330 * Establish link to `ledma' device.
331 * XXX hackery.
332 */
333 dma = (struct lsi64854_softc *)device_get_softc(device_get_parent(dev));
334 lesc->sc_dma = dma;
335 lesc->sc_dma->sc_client = lesc;
336
337 lesc->sc_rrid = 0;
338 lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
339 &lesc->sc_rrid, RF_ACTIVE);
340 if (lesc->sc_rres == NULL) {
341 device_printf(dev, "cannot allocate registers\n");
342 error = ENXIO;
343 goto fail_mtx;
344 }
345 lesc->sc_regt = rman_get_bustag(lesc->sc_rres);
346 lesc->sc_regh = rman_get_bushandle(lesc->sc_rres);
347
348 lesc->sc_irid = 0;
349 if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ,
350 &lesc->sc_irid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
351 device_printf(dev, "cannot allocate interrupt\n");
352 error = ENXIO;
353 goto fail_rres;
354 }
355
356 sc->sc_memsize = LEDMA_MEMSIZE;
357 error = bus_dma_tag_create(
358 dma->sc_parent_dmat, /* parent */
|
358 1, LEDMA_BOUNDARY, /* alignment, boundary */
| 359 LEDMA_ALIGNMENT, /* alignment */
360 LEDMA_BOUNDARY, /* boundary */
|
359 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
360 BUS_SPACE_MAXADDR, /* highaddr */
361 NULL, NULL, /* filter, filterarg */
362 sc->sc_memsize, /* maxsize */
363 1, /* nsegments */
364 sc->sc_memsize, /* maxsegsize */
365 BUS_DMA_WAITOK, /* flags */
366 NULL, NULL, /* lockfunc, lockarg */
367 &lesc->sc_dmat);
368 if (error != 0) {
369 device_printf(dev, "cannot allocate buffer DMA tag\n");
370 goto fail_ires;
371 }
372
373 error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem,
374 BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam);
375 if (error != 0) {
376 device_printf(dev, "cannot allocate DMA buffer memory\n");
377 goto fail_dtag;
378 }
379
380 lesc->sc_laddr = 0;
381 error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem,
382 sc->sc_memsize, le_dma_dma_callback, lesc, 0);
383 if (error != 0 || lesc->sc_laddr == 0) {
384 device_printf(dev, "cannot load DMA buffer map\n");
385 goto fail_dmem;
386 }
387
388 sc->sc_addr = lesc->sc_laddr & 0xffffff;
389 sc->sc_flags = 0;
390 sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON;
391
392 sc->sc_mediachange = le_dma_supmediachange;
393 sc->sc_mediastatus = le_dma_supmediastatus;
394 sc->sc_supmedia = le_dma_supmedia;
395 sc->sc_nsupmedia = sizeof(le_dma_supmedia) / sizeof(le_dma_supmedia[0]);
396 sc->sc_defaultmedia = le_dma_supmedia[0];
397
398 OF_getetheraddr(dev, sc->sc_enaddr);
399
400 sc->sc_copytodesc = lance_copytobuf_contig;
401 sc->sc_copyfromdesc = lance_copyfrombuf_contig;
402 sc->sc_copytobuf = lance_copytobuf_contig;
403 sc->sc_copyfrombuf = lance_copyfrombuf_contig;
404 sc->sc_zerobuf = lance_zerobuf_contig;
405
406 sc->sc_rdcsr = le_dma_rdcsr;
407 sc->sc_wrcsr = le_dma_wrcsr;
| 361 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
362 BUS_SPACE_MAXADDR, /* highaddr */
363 NULL, NULL, /* filter, filterarg */
364 sc->sc_memsize, /* maxsize */
365 1, /* nsegments */
366 sc->sc_memsize, /* maxsegsize */
367 BUS_DMA_WAITOK, /* flags */
368 NULL, NULL, /* lockfunc, lockarg */
369 &lesc->sc_dmat);
370 if (error != 0) {
371 device_printf(dev, "cannot allocate buffer DMA tag\n");
372 goto fail_ires;
373 }
374
375 error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem,
376 BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam);
377 if (error != 0) {
378 device_printf(dev, "cannot allocate DMA buffer memory\n");
379 goto fail_dtag;
380 }
381
382 lesc->sc_laddr = 0;
383 error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem,
384 sc->sc_memsize, le_dma_dma_callback, lesc, 0);
385 if (error != 0 || lesc->sc_laddr == 0) {
386 device_printf(dev, "cannot load DMA buffer map\n");
387 goto fail_dmem;
388 }
389
390 sc->sc_addr = lesc->sc_laddr & 0xffffff;
391 sc->sc_flags = 0;
392 sc->sc_conf3 = LE_C3_BSWP | LE_C3_ACON | LE_C3_BCON;
393
394 sc->sc_mediachange = le_dma_supmediachange;
395 sc->sc_mediastatus = le_dma_supmediastatus;
396 sc->sc_supmedia = le_dma_supmedia;
397 sc->sc_nsupmedia = sizeof(le_dma_supmedia) / sizeof(le_dma_supmedia[0]);
398 sc->sc_defaultmedia = le_dma_supmedia[0];
399
400 OF_getetheraddr(dev, sc->sc_enaddr);
401
402 sc->sc_copytodesc = lance_copytobuf_contig;
403 sc->sc_copyfromdesc = lance_copyfrombuf_contig;
404 sc->sc_copytobuf = lance_copytobuf_contig;
405 sc->sc_copyfrombuf = lance_copyfrombuf_contig;
406 sc->sc_zerobuf = lance_zerobuf_contig;
407
408 sc->sc_rdcsr = le_dma_rdcsr;
409 sc->sc_wrcsr = le_dma_wrcsr;
|
408 sc->sc_nocarrier = le_dma_nocarrier;
| |
409 sc->sc_hwreset = le_dma_hwreset;
410 sc->sc_hwintr = le_dma_hwintr;
| 410 sc->sc_hwreset = le_dma_hwreset;
411 sc->sc_hwintr = le_dma_hwintr;
|
| 412 sc->sc_nocarrier = le_dma_nocarrier;
|
411
412 error = am7990_config(&lesc->sc_am7990, device_get_name(dev),
413 device_get_unit(dev));
414 if (error != 0) {
| 413
414 error = am7990_config(&lesc->sc_am7990, device_get_name(dev),
415 device_get_unit(dev));
416 if (error != 0) {
|
415 device_printf(dev, "cannot attach AM7990\n");
| 417 device_printf(dev, "cannot attach Am7990\n");
|
416 goto fail_dmap;
417 }
418
419 error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE,
420 am7990_intr, sc, &lesc->sc_ih);
421 if (error != 0) {
422 device_printf(dev, "cannot set up interrupt\n");
423 goto fail_am7990;
424 }
425
426 return (0);
427
428 fail_am7990:
429 am7990_detach(&lesc->sc_am7990);
430 fail_dmap:
431 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam);
432 fail_dmem:
433 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam);
434 fail_dtag:
435 bus_dma_tag_destroy(lesc->sc_dmat);
436 fail_ires:
437 bus_release_resource(dev, SYS_RES_IRQ, lesc->sc_irid, lesc->sc_ires);
438 fail_rres:
439 bus_release_resource(dev, SYS_RES_MEMORY, lesc->sc_rrid, lesc->sc_rres);
440 fail_mtx:
441 LE_LOCK_DESTROY(sc);
442 return (error);
443}
444
445static int
446le_dma_detach(device_t dev)
447{
448 struct le_dma_softc *lesc;
449 struct lance_softc *sc;
450
451 lesc = device_get_softc(dev);
452 sc = &lesc->sc_am7990.lsc;
453
454 bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih);
455 am7990_detach(&lesc->sc_am7990);
456 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam);
457 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam);
458 bus_dma_tag_destroy(lesc->sc_dmat);
459 bus_release_resource(dev, SYS_RES_IRQ, lesc->sc_irid, lesc->sc_ires);
460 bus_release_resource(dev, SYS_RES_MEMORY, lesc->sc_rrid, lesc->sc_rres);
461 LE_LOCK_DESTROY(sc);
462
463 return (0);
464}
465
466static int
467le_dma_suspend(device_t dev)
468{
469 struct le_dma_softc *lesc;
470
471 lesc = device_get_softc(dev);
472
473 lance_suspend(&lesc->sc_am7990.lsc);
474
475 return (0);
476}
477
478static int
479le_dma_resume(device_t dev)
480{
481 struct le_dma_softc *lesc;
482
483 lesc = device_get_softc(dev);
484
485 lance_resume(&lesc->sc_am7990.lsc);
486
487 return (0);
488}
| 418 goto fail_dmap;
419 }
420
421 error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE,
422 am7990_intr, sc, &lesc->sc_ih);
423 if (error != 0) {
424 device_printf(dev, "cannot set up interrupt\n");
425 goto fail_am7990;
426 }
427
428 return (0);
429
430 fail_am7990:
431 am7990_detach(&lesc->sc_am7990);
432 fail_dmap:
433 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam);
434 fail_dmem:
435 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam);
436 fail_dtag:
437 bus_dma_tag_destroy(lesc->sc_dmat);
438 fail_ires:
439 bus_release_resource(dev, SYS_RES_IRQ, lesc->sc_irid, lesc->sc_ires);
440 fail_rres:
441 bus_release_resource(dev, SYS_RES_MEMORY, lesc->sc_rrid, lesc->sc_rres);
442 fail_mtx:
443 LE_LOCK_DESTROY(sc);
444 return (error);
445}
446
447static int
448le_dma_detach(device_t dev)
449{
450 struct le_dma_softc *lesc;
451 struct lance_softc *sc;
452
453 lesc = device_get_softc(dev);
454 sc = &lesc->sc_am7990.lsc;
455
456 bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih);
457 am7990_detach(&lesc->sc_am7990);
458 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam);
459 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam);
460 bus_dma_tag_destroy(lesc->sc_dmat);
461 bus_release_resource(dev, SYS_RES_IRQ, lesc->sc_irid, lesc->sc_ires);
462 bus_release_resource(dev, SYS_RES_MEMORY, lesc->sc_rrid, lesc->sc_rres);
463 LE_LOCK_DESTROY(sc);
464
465 return (0);
466}
467
468static int
469le_dma_suspend(device_t dev)
470{
471 struct le_dma_softc *lesc;
472
473 lesc = device_get_softc(dev);
474
475 lance_suspend(&lesc->sc_am7990.lsc);
476
477 return (0);
478}
479
480static int
481le_dma_resume(device_t dev)
482{
483 struct le_dma_softc *lesc;
484
485 lesc = device_get_softc(dev);
486
487 lance_resume(&lesc->sc_am7990.lsc);
488
489 return (0);
490}
|