1 /*-
2 * Copyright (c) 2002 - 2008 Søren Schmidt <sos@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/ata.h>
34 #include <sys/bus.h>
35 #include <sys/malloc.h>
36 #include <sys/module.h>
37 #include <sys/conf.h>
38 #include <sys/sema.h>
39 #include <sys/taskqueue.h>
40 #include <vm/uma.h>
41 #include <machine/resource.h>
42 #include <machine/bus.h>
43 #include <sys/rman.h>
44 #include <isa/isavar.h>
45 #include <dev/ata/ata-all.h>
46 #include <ata_if.h>
47
48 /* local vars */
49 struct ata_cbus_controller {
50 struct resource *io;
51 struct resource *ctlio;
52 struct resource *bankio;
53 struct resource *irq;
54 void *ih;
55 int channels;
56 struct {
57 void (*function)(void *);
58 void *argument;
59 } interrupt[2];
60 };
61
62 /* local prototypes */
63 static void ata_cbus_intr(void *);
64
65 static int
ata_cbus_probe(device_t dev)66 ata_cbus_probe(device_t dev)
67 {
68 struct resource *io;
69 int rid;
70 u_long tmp;
71
72 /* dont probe PnP devices */
73 if (isa_get_vendorid(dev))
74 return (ENXIO);
75
76 /* allocate the ioport range */
77 rid = ATA_IOADDR_RID;
78 if (!(io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
79 ATA_PC98_IOSIZE, RF_ACTIVE)))
80 return ENOMEM;
81
82 /* calculate & set the altport range */
83 rid = ATA_PC98_CTLADDR_RID;
84 if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &tmp, &tmp)) {
85 bus_set_resource(dev, SYS_RES_IOPORT, rid,
86 rman_get_start(io)+ATA_PC98_CTLOFFSET, ATA_CTLIOSIZE);
87 }
88
89 /* calculate & set the bank range */
90 rid = ATA_PC98_BANKADDR_RID;
91 if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &tmp, &tmp)) {
92 bus_set_resource(dev, SYS_RES_IOPORT, rid,
93 ATA_PC98_BANK, ATA_PC98_BANKIOSIZE);
94 }
95
96 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io);
97 return 0;
98 }
99
100 static int
ata_cbus_attach(device_t dev)101 ata_cbus_attach(device_t dev)
102 {
103 struct ata_cbus_controller *ctlr = device_get_softc(dev);
104 device_t child;
105 int rid, unit;
106
107 /* allocate resources */
108 rid = ATA_IOADDR_RID;
109 if (!(ctlr->io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
110 ATA_PC98_IOSIZE, RF_ACTIVE)))
111 return ENOMEM;
112
113 rid = ATA_PC98_CTLADDR_RID;
114 if (!(ctlr->ctlio =
115 bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
116 rman_get_start(ctlr->io) + ATA_PC98_CTLOFFSET, ~0,
117 ATA_CTLIOSIZE, RF_ACTIVE))) {
118 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, ctlr->io);
119 return ENOMEM;
120 }
121
122 rid = ATA_PC98_BANKADDR_RID;
123 if (!(ctlr->bankio = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
124 ATA_PC98_BANK, ~0,
125 ATA_PC98_BANKIOSIZE, RF_ACTIVE))) {
126 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, ctlr->io);
127 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, ctlr->ctlio);
128 return ENOMEM;
129 }
130
131 rid = ATA_IRQ_RID;
132 if (!(ctlr->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
133 RF_ACTIVE | RF_SHAREABLE))) {
134 device_printf(dev, "unable to alloc interrupt\n");
135 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, ctlr->io);
136 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, ctlr->ctlio);
137 bus_release_resource(dev, SYS_RES_IOPORT,
138 ATA_PC98_BANKADDR_RID, ctlr->bankio);
139 return ENXIO;
140 }
141
142 if ((bus_setup_intr(dev, ctlr->irq, ATA_INTR_FLAGS,
143 NULL, ata_cbus_intr, ctlr, &ctlr->ih))) {
144 device_printf(dev, "unable to setup interrupt\n");
145 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, ctlr->io);
146 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, ctlr->ctlio);
147 bus_release_resource(dev, SYS_RES_IOPORT,
148 ATA_PC98_BANKADDR_RID, ctlr->bankio);
149 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IRQ_RID, ctlr->irq);
150 return ENXIO;
151 }
152
153 /* Work around the lack of channel serialization in ATA_CAM. */
154 ctlr->channels = 1;
155 device_printf(dev, "second channel ignored\n");
156
157 for (unit = 0; unit < ctlr->channels; unit++) {
158 child = device_add_child(dev, "ata", unit);
159 if (child == NULL)
160 device_printf(dev, "failed to add ata child device\n");
161 else
162 device_set_ivars(child, (void *)(intptr_t)unit);
163 }
164
165 bus_generic_attach(dev);
166 return (0);
167 }
168
169 static struct resource *
ata_cbus_alloc_resource(device_t dev,device_t child,int type,int * rid,u_long start,u_long end,u_long count,u_int flags)170 ata_cbus_alloc_resource(device_t dev, device_t child, int type, int *rid,
171 u_long start, u_long end, u_long count, u_int flags)
172 {
173 struct ata_cbus_controller *ctlr = device_get_softc(dev);
174
175 if (type == SYS_RES_IOPORT) {
176 switch (*rid) {
177 case ATA_IOADDR_RID:
178 return ctlr->io;
179 case ATA_CTLADDR_RID:
180 return ctlr->ctlio;
181 }
182 }
183 if (type == SYS_RES_IRQ)
184 return ctlr->irq;
185 return 0;
186 }
187
188 static int
ata_cbus_setup_intr(device_t dev,device_t child,struct resource * irq,int flags,driver_filter_t * filter,driver_intr_t * intr,void * arg,void ** cookiep)189 ata_cbus_setup_intr(device_t dev, device_t child, struct resource *irq,
190 int flags, driver_filter_t *filter, driver_intr_t *intr,
191 void *arg, void **cookiep)
192 {
193 struct ata_cbus_controller *controller = device_get_softc(dev);
194 int unit = ((struct ata_channel *)device_get_softc(child))->unit;
195
196 if (filter != NULL) {
197 printf("ata-cbus.c: we cannot use a filter here\n");
198 return (EINVAL);
199 }
200 controller->interrupt[unit].function = intr;
201 controller->interrupt[unit].argument = arg;
202 *cookiep = controller;
203
204 return 0;
205 }
206
207 static int
ata_cbus_print_child(device_t dev,device_t child)208 ata_cbus_print_child(device_t dev, device_t child)
209 {
210 struct ata_channel *ch = device_get_softc(child);
211 int retval = 0;
212
213 retval += bus_print_child_header(dev, child);
214 retval += printf(" at bank %d", ch->unit);
215 retval += bus_print_child_footer(dev, child);
216 return retval;
217 }
218
219 static void
ata_cbus_intr(void * data)220 ata_cbus_intr(void *data)
221 {
222 struct ata_cbus_controller *ctlr = data;
223 struct ata_channel *ch;
224 int unit;
225
226 for (unit = 0; unit < ctlr->channels; unit++) {
227 if (!(ch = ctlr->interrupt[unit].argument))
228 continue;
229 ctlr->interrupt[unit].function(ch);
230 }
231 }
232
233 static device_method_t ata_cbus_methods[] = {
234 /* device interface */
235 DEVMETHOD(device_probe, ata_cbus_probe),
236 DEVMETHOD(device_attach, ata_cbus_attach),
237 // DEVMETHOD(device_detach, ata_cbus_detach),
238
239 /* bus methods */
240 DEVMETHOD(bus_alloc_resource, ata_cbus_alloc_resource),
241 DEVMETHOD(bus_setup_intr, ata_cbus_setup_intr),
242 DEVMETHOD(bus_print_child, ata_cbus_print_child),
243
244 DEVMETHOD_END
245 };
246
247 static driver_t ata_cbus_driver = {
248 "atacbus",
249 ata_cbus_methods,
250 sizeof(struct ata_cbus_controller),
251 };
252
253 static devclass_t ata_cbus_devclass;
254
255 DRIVER_MODULE(atacbus, isa, ata_cbus_driver, ata_cbus_devclass, NULL, NULL);
256
257 static int
ata_cbuschannel_probe(device_t dev)258 ata_cbuschannel_probe(device_t dev)
259 {
260 char buffer[32];
261
262 sprintf(buffer, "ATA channel %d", (int)(intptr_t)device_get_ivars(dev));
263 device_set_desc_copy(dev, buffer);
264
265 return ata_probe(dev);
266 }
267
268 static int
ata_cbuschannel_attach(device_t dev)269 ata_cbuschannel_attach(device_t dev)
270 {
271 struct ata_cbus_controller *ctlr = device_get_softc(device_get_parent(dev));
272 struct ata_channel *ch = device_get_softc(dev);
273 int i;
274
275 if (ch->attached)
276 return (0);
277 ch->attached = 1;
278
279 ch->unit = (intptr_t)device_get_ivars(dev);
280 /* setup the resource vectors */
281 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) {
282 ch->r_io[i].res = ctlr->io;
283 ch->r_io[i].offset = i << 1;
284 }
285 ch->r_io[ATA_CONTROL].res = ctlr->ctlio;
286 ch->r_io[ATA_CONTROL].offset = 0;
287 ch->r_io[ATA_IDX_ADDR].res = ctlr->io;
288 ata_default_registers(dev);
289
290 /* initialize softc for this channel */
291 ch->flags |= ATA_USE_16BIT;
292 ata_generic_hw(dev);
293
294 return ata_attach(dev);
295 }
296
297 static int
ata_cbuschannel_detach(device_t dev)298 ata_cbuschannel_detach(device_t dev)
299 {
300 struct ata_channel *ch = device_get_softc(dev);
301
302 if (!ch->attached)
303 return (0);
304 ch->attached = 0;
305
306 return ata_detach(dev);
307 }
308
309 static int
ata_cbuschannel_suspend(device_t dev)310 ata_cbuschannel_suspend(device_t dev)
311 {
312 struct ata_channel *ch = device_get_softc(dev);
313
314 if (!ch->attached)
315 return (0);
316
317 return ata_suspend(dev);
318 }
319
320 static int
ata_cbuschannel_resume(device_t dev)321 ata_cbuschannel_resume(device_t dev)
322 {
323 struct ata_channel *ch = device_get_softc(dev);
324
325 if (!ch->attached)
326 return (0);
327
328 return ata_resume(dev);
329 }
330
331 static device_method_t ata_cbuschannel_methods[] = {
332 /* device interface */
333 DEVMETHOD(device_probe, ata_cbuschannel_probe),
334 DEVMETHOD(device_attach, ata_cbuschannel_attach),
335 DEVMETHOD(device_detach, ata_cbuschannel_detach),
336 DEVMETHOD(device_suspend, ata_cbuschannel_suspend),
337 DEVMETHOD(device_resume, ata_cbuschannel_resume),
338 DEVMETHOD_END
339 };
340
341 static driver_t ata_cbuschannel_driver = {
342 "ata",
343 ata_cbuschannel_methods,
344 sizeof(struct ata_channel),
345 };
346
347 DRIVER_MODULE(ata, atacbus, ata_cbuschannel_driver, ata_devclass, NULL, NULL);
348 MODULE_DEPEND(ata, ata, 1, 1, 1);
349