FreeBSD/Linux Kernel Cross Reference
sys/dev/ct/ct_isa.c
1 /* $NecBSD: ct_isa.c,v 1.6 1999/07/26 06:32:01 honda Exp $ */
2
3 #include <sys/cdefs.h>
4 __FBSDID("$FreeBSD: releng/10.0/sys/dev/ct/ct_isa.c 242871 2012-11-10 14:58:06Z nyan $");
5 /* $NetBSD$ */
6
7 /*-
8 * [NetBSD for NEC PC-98 series]
9 * Copyright (c) 1995, 1996, 1997, 1998
10 * NetBSD/pc98 porting staff. All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
32 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33 * POSSIBILITY OF SUCH DAMAGE.
34 */
35
36 #define SCSIBUS_RESCAN
37
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/kernel.h>
41 #include <sys/bio.h>
42 #include <sys/buf.h>
43 #include <sys/queue.h>
44 #include <sys/malloc.h>
45 #include <sys/bus.h>
46 #include <sys/module.h>
47 #include <sys/errno.h>
48
49 #include <vm/vm.h>
50
51 #include <machine/bus.h>
52 #include <machine/resource.h>
53 #include <sys/bus.h>
54 #include <sys/rman.h>
55 #include <machine/md_var.h>
56
57 #include <pc98/cbus/cbus.h>
58 #include <isa/isavar.h>
59
60 #include <compat/netbsd/dvcfg.h>
61
62 #include <cam/scsi/scsi_low.h>
63
64 #include <dev/ic/wd33c93reg.h>
65 #include <dev/ct/ctvar.h>
66 #include <dev/ct/bshwvar.h>
67
68 #define BSHW_IOSZ 0x08
69 #define BSHW_IOBASE 0xcc0
70 #define BSHW_MEMSZ (PAGE_SIZE * 2)
71
72 static int ct_isa_match(device_t);
73 static int ct_isa_attach(device_t);
74 static int ct_space_map(device_t, struct bshw *,
75 struct resource **, struct resource **);
76 static void ct_space_unmap(device_t, struct ct_softc *);
77 static struct bshw *ct_find_hw(device_t);
78 static void ct_dmamap(void *, bus_dma_segment_t *, int, int);
79 static void ct_isa_bus_access_weight(struct ct_bus_access_handle *);
80 static void ct_isa_dmasync_before(struct ct_softc *);
81 static void ct_isa_dmasync_after(struct ct_softc *);
82
83 struct ct_isa_softc {
84 struct ct_softc sc_ct;
85 struct bshw_softc sc_bshw;
86 };
87
88 static struct isa_pnp_id ct_pnp_ids[] = {
89 { 0x0100e7b1, "Logitec LHA-301" },
90 { 0x110154dc, "I-O DATA SC-98III" },
91 { 0x4120acb4, "MELCO IFC-NN" },
92 { 0, NULL }
93 };
94
95 static device_method_t ct_isa_methods[] = {
96 /* Device interface */
97 DEVMETHOD(device_probe, ct_isa_match),
98 DEVMETHOD(device_attach, ct_isa_attach),
99 { 0, 0 }
100 };
101
102 static driver_t ct_isa_driver = {
103 "ct", ct_isa_methods, sizeof(struct ct_isa_softc),
104 };
105
106 static devclass_t ct_devclass;
107
108 DRIVER_MODULE(ct, isa, ct_isa_driver, ct_devclass, 0, 0);
109
110 static int
111 ct_isa_match(device_t dev)
112 {
113 struct bshw *hw;
114 struct resource *port_res, *mem_res;
115 struct ct_bus_access_handle ch;
116 int rv;
117
118 if (ISA_PNP_PROBE(device_get_parent(dev), dev, ct_pnp_ids) == ENXIO)
119 return ENXIO;
120
121 switch (isa_get_logicalid(dev)) {
122 case 0x0100e7b1: /* LHA-301 */
123 case 0x110154dc: /* SC-98III */
124 case 0x4120acb4: /* IFC-NN */
125 /* XXX - force to SMIT mode */
126 device_set_flags(dev, device_get_flags(dev) | 0x40000);
127 break;
128 }
129
130 if (isa_get_port(dev) == -1)
131 bus_set_resource(dev, SYS_RES_IOPORT, 0,
132 BSHW_IOBASE, BSHW_IOSZ);
133
134 if ((hw = ct_find_hw(dev)) == NULL)
135 return ENXIO;
136 if (ct_space_map(dev, hw, &port_res, &mem_res) != 0)
137 return ENXIO;
138
139 bzero(&ch, sizeof(ch));
140 ch.ch_iot = rman_get_bustag(port_res);
141 ch.ch_ioh = rman_get_bushandle(port_res),
142 ch.ch_bus_weight = ct_isa_bus_access_weight;
143
144 rv = ctprobesubr(&ch, 0, BSHW_DEFAULT_HOSTID,
145 BSHW_DEFAULT_CHIPCLK, NULL);
146 if (rv != 0)
147 {
148 struct bshw_softc bshw_tab;
149 struct bshw_softc *bs = &bshw_tab;
150
151 memset(bs, 0, sizeof(*bs));
152 bshw_read_settings(&ch, bs);
153 bus_set_resource(dev, SYS_RES_IRQ, 0, bs->sc_irq, 1);
154 bus_set_resource(dev, SYS_RES_DRQ, 0, bs->sc_drq, 1);
155 }
156
157 bus_release_resource(dev, SYS_RES_IOPORT, 0, port_res);
158 if (mem_res != NULL)
159 bus_release_resource(dev, SYS_RES_MEMORY, 0, mem_res);
160
161 if (rv != 0)
162 return 0;
163 return ENXIO;
164 }
165
166 static int
167 ct_isa_attach(device_t dev)
168 {
169 struct ct_isa_softc *pct = device_get_softc(dev);
170 struct ct_softc *ct = &pct->sc_ct;
171 struct ct_bus_access_handle *chp = &ct->sc_ch;
172 struct scsi_low_softc *slp = &ct->sc_sclow;
173 struct bshw_softc *bs = &pct->sc_bshw;
174 struct bshw *hw;
175 int irq_rid, drq_rid, chiprev;
176 u_int8_t *vaddr;
177 bus_addr_t addr;
178 intrmask_t s;
179
180 hw = ct_find_hw(dev);
181 if (ct_space_map(dev, hw, &ct->port_res, &ct->mem_res) != 0) {
182 device_printf(dev, "bus io mem map failed\n");
183 return ENXIO;
184 }
185
186 bzero(chp, sizeof(*chp));
187 chp->ch_iot = rman_get_bustag(ct->port_res);
188 chp->ch_ioh = rman_get_bushandle(ct->port_res);
189 if (ct->mem_res) {
190 chp->ch_memt = rman_get_bustag(ct->mem_res);
191 chp->ch_memh = rman_get_bushandle(ct->mem_res);
192 }
193 chp->ch_bus_weight = ct_isa_bus_access_weight;
194
195 irq_rid = 0;
196 ct->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &irq_rid,
197 RF_ACTIVE);
198 drq_rid = 0;
199 ct->drq_res = bus_alloc_resource_any(dev, SYS_RES_DRQ, &drq_rid,
200 RF_ACTIVE);
201 if (ct->irq_res == NULL || ct->drq_res == NULL) {
202 ct_space_unmap(dev, ct);
203 return ENXIO;
204 }
205
206 if (ctprobesubr(chp, 0, BSHW_DEFAULT_HOSTID,
207 BSHW_DEFAULT_CHIPCLK, &chiprev) == 0)
208 {
209 device_printf(dev, "hardware missing\n");
210 ct_space_unmap(dev, ct);
211 return ENXIO;
212 }
213
214 /* setup DMA map */
215 if (bus_dma_tag_create(NULL, 1, 0,
216 BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR,
217 NULL, NULL, MAXBSIZE, 1,
218 BUS_SPACE_MAXSIZE_32BIT,
219 BUS_DMA_ALLOCNOW, NULL, NULL,
220 &ct->sc_dmat) != 0) {
221 device_printf(dev, "can't set up ISA DMA map\n");
222 ct_space_unmap(dev, ct);
223 return ENXIO;
224 }
225
226 if (bus_dmamem_alloc(ct->sc_dmat, (void **)&vaddr, BUS_DMA_NOWAIT,
227 &ct->sc_dmamapt) != 0) {
228 device_printf(dev, "can't set up ISA DMA map\n");
229 ct_space_unmap(dev, ct);
230 return ENXIO;
231 }
232
233 bus_dmamap_load(ct->sc_dmat, ct->sc_dmamapt, vaddr, MAXBSIZE,
234 ct_dmamap, &addr, BUS_DMA_NOWAIT);
235
236 /* setup machdep softc */
237 bs->sc_hw = hw;
238 bs->sc_io_control = 0;
239 bs->sc_bounce_phys = (u_int8_t *)addr;
240 bs->sc_bounce_addr = vaddr;
241 bs->sc_bounce_size = MAXBSIZE;
242 bs->sc_minphys = (1 << 24);
243 bs->sc_dmasync_before = ct_isa_dmasync_before;
244 bs->sc_dmasync_after = ct_isa_dmasync_after;
245 bshw_read_settings(chp, bs);
246
247 /* setup ct driver softc */
248 ct->ct_hw = bs;
249 ct->ct_dma_xfer_start = bshw_dma_xfer_start;
250 ct->ct_pio_xfer_start = bshw_smit_xfer_start;
251 ct->ct_dma_xfer_stop = bshw_dma_xfer_stop;
252 ct->ct_pio_xfer_stop = bshw_smit_xfer_stop;
253 ct->ct_bus_reset = bshw_bus_reset;
254 ct->ct_synch_setup = bshw_synch_setup;
255
256 ct->sc_xmode = CT_XMODE_DMA;
257 if (chp->ch_memh != NULL)
258 ct->sc_xmode |= CT_XMODE_PIO;
259
260 ct->sc_chiprev = chiprev;
261 switch (chiprev)
262 {
263 case CT_WD33C93:
264 /* s = "WD33C93"; */
265 ct->sc_chipclk = 8;
266 break;
267 case CT_WD33C93_A:
268 if (DVCFG_MAJOR(device_get_flags(dev)) > 0)
269 {
270 /* s = "AM33C93_A"; */
271 ct->sc_chipclk = 20;
272 ct->sc_chiprev = CT_AM33C93_A;
273 }
274 else
275 {
276 /* s = "WD33C93_A"; */
277 ct->sc_chipclk = 10;
278 }
279 break;
280
281 case CT_AM33C93_A:
282 /* s = "AM33C93_A"; */
283 ct->sc_chipclk = 20;
284 break;
285
286 default:
287 case CT_WD33C93_B:
288 /* s = "WD33C93_B"; */
289 ct->sc_chipclk = 20;
290 break;
291 }
292 #if 0
293 printf("%s: chiprev %s chipclk %d MHz\n",
294 slp->sl_dev.dv_xname, s, ct->sc_chipclk);
295 #endif
296
297 slp->sl_dev = dev;
298 slp->sl_hostid = bs->sc_hostid;
299 slp->sl_cfgflags = device_get_flags(dev);
300
301 s = splcam();
302 ctattachsubr(ct);
303 splx(s);
304
305 if (bus_setup_intr(dev, ct->irq_res, INTR_TYPE_CAM,
306 NULL, (driver_intr_t *)ctintr, ct, &ct->sc_ih)) {
307 ct_space_unmap(dev, ct);
308 return ENXIO;
309 }
310
311 return 0;
312 }
313
314 static struct bshw *
315 ct_find_hw(device_t dev)
316 {
317 return DVCFG_HW(&bshw_hwsel, DVCFG_MAJOR(device_get_flags(dev)));
318 }
319
320 static int
321 ct_space_map(device_t dev, struct bshw *hw,
322 struct resource **iohp, struct resource **memhp)
323 {
324 int port_rid, mem_rid;
325
326 *memhp = NULL;
327
328 port_rid = 0;
329 *iohp = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid, 0, ~0,
330 BSHW_IOSZ, RF_ACTIVE);
331 if (*iohp == NULL)
332 return ENXIO;
333
334 if ((hw->hw_flags & BSHW_SMFIFO) == 0 || isa_get_maddr(dev) == -1)
335 return 0;
336
337 mem_rid = 0;
338 *memhp = bus_alloc_resource(dev, SYS_RES_MEMORY, &mem_rid, 0, ~0,
339 BSHW_MEMSZ, RF_ACTIVE);
340 if (*memhp == NULL) {
341 bus_release_resource(dev, SYS_RES_IOPORT, port_rid, *iohp);
342 return ENXIO;
343 }
344
345 return 0;
346 }
347
348 static void
349 ct_space_unmap(device_t dev, struct ct_softc *ct)
350 {
351 if (ct->port_res != NULL)
352 bus_release_resource(dev, SYS_RES_IOPORT, 0, ct->port_res);
353 if (ct->mem_res != NULL)
354 bus_release_resource(dev, SYS_RES_MEMORY, 0, ct->mem_res);
355 if (ct->irq_res != NULL)
356 bus_release_resource(dev, SYS_RES_IRQ, 0, ct->irq_res);
357 if (ct->drq_res != NULL)
358 bus_release_resource(dev, SYS_RES_DRQ, 0, ct->drq_res);
359 }
360
361 static void
362 ct_dmamap(void *arg, bus_dma_segment_t *seg, int nseg, int error)
363 {
364 bus_addr_t *addr = (bus_addr_t *)arg;
365
366 *addr = seg->ds_addr;
367 }
368
369 static void
370 ct_isa_bus_access_weight(struct ct_bus_access_handle *chp)
371 {
372
373 outb(0x5f, 0);
374 }
375
376 static void
377 ct_isa_dmasync_before(struct ct_softc *ct)
378 {
379
380 if (need_pre_dma_flush)
381 wbinvd();
382 }
383
384 static void
385 ct_isa_dmasync_after(struct ct_softc *ct)
386 {
387
388 if (need_post_dma_flush)
389 invd();
390 }
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