ahc_cardbus.c revision 1.12 1 /* $NetBSD: ahc_cardbus.c,v 1.12 2003/04/20 16:52:40 fvdl Exp $ */
2
3 /*-
4 * Copyright (c) 2000 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
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 /*
41 * CardBus front-end for the Adaptec AIC-7xxx family of SCSI controllers.
42 *
43 * TODO:
44 * - power management
45 */
46
47 #include <sys/cdefs.h>
48 __KERNEL_RCSID(0, "$NetBSD: ahc_cardbus.c,v 1.12 2003/04/20 16:52:40 fvdl Exp $");
49
50 #include <sys/param.h>
51 #include <sys/systm.h>
52 #include <sys/malloc.h>
53 #include <sys/kernel.h>
54 #include <sys/queue.h>
55 #include <sys/device.h>
56
57 #include <machine/bus.h>
58 #include <machine/intr.h>
59
60 #include <dev/scsipi/scsi_all.h>
61 #include <dev/scsipi/scsipi_all.h>
62 #include <dev/scsipi/scsiconf.h>
63
64 #include <dev/pci/pcireg.h>
65
66 #include <dev/cardbus/cardbusvar.h>
67 #include <dev/cardbus/cardbusdevs.h>
68
69 #include <dev/ic/aic7xxx_osm.h>
70 #include <dev/ic/aic7xxx_inline.h>
71
72
73 #define AHC_CARDBUS_IOBA 0x10
74 #define AHC_CARDBUS_MMBA 0x14
75
76 struct ahc_cardbus_softc {
77 struct ahc_softc sc_ahc; /* real AHC */
78
79 /* CardBus-specific goo. */
80 cardbus_devfunc_t sc_ct; /* our CardBus devfuncs */
81 int sc_intrline; /* our interrupt line */
82 cardbustag_t sc_tag;
83
84 int sc_cbenable; /* what CardBus access type to enable */
85 int sc_csr; /* CSR bits */
86 bus_size_t sc_size;
87 };
88
89 int ahc_cardbus_match __P((struct device *, struct cfdata *, void *));
90 void ahc_cardbus_attach __P((struct device *, struct device *, void *));
91 int ahc_cardbus_detach __P((struct device *, int));
92 int ahc_activate(struct device *self, enum devact act);
93
94 CFATTACH_DECL(ahc_cardbus, sizeof(struct ahc_cardbus_softc),
95 ahc_cardbus_match, ahc_cardbus_attach, ahc_cardbus_detach, ahc_activate);
96
97 int
98 ahc_cardbus_match(parent, match, aux)
99 struct device *parent;
100 struct cfdata *match;
101 void *aux;
102 {
103 struct cardbus_attach_args *ca = aux;
104
105 if (CARDBUS_VENDOR(ca->ca_id) == CARDBUS_VENDOR_ADP &&
106 CARDBUS_PRODUCT(ca->ca_id) == CARDBUS_PRODUCT_ADP_1480)
107 return (1);
108
109 return (0);
110 }
111
112 void
113 ahc_cardbus_attach(parent, self, aux)
114 struct device *parent, *self;
115 void *aux;
116 {
117 struct cardbus_attach_args *ca = aux;
118 struct ahc_cardbus_softc *csc = (void *) self;
119 struct ahc_softc *ahc = &csc->sc_ahc;
120 cardbus_devfunc_t ct = ca->ca_ct;
121 cardbus_chipset_tag_t cc = ct->ct_cc;
122 cardbus_function_tag_t cf = ct->ct_cf;
123 bus_space_tag_t bst;
124 bus_space_handle_t bsh;
125 pcireg_t reg;
126 u_int sxfrctl1 = 0;
127 u_char sblkctl;
128
129
130 csc->sc_ct = ct;
131 csc->sc_tag = ca->ca_tag;
132 csc->sc_intrline = ca->ca_intrline;
133
134 printf(": Adaptec ADP-1480 SCSI\n");
135
136 /*
137 * Map the device.
138 */
139 csc->sc_csr = PCI_COMMAND_MASTER_ENABLE;
140 if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_MMBA,
141 PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
142 &bst, &bsh, NULL, &csc->sc_size) == 0) {
143 csc->sc_cbenable = CARDBUS_MEM_ENABLE;
144 csc->sc_csr |= PCI_COMMAND_MEM_ENABLE;
145 } else if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_IOBA,
146 PCI_MAPREG_TYPE_IO, 0, &bst, &bsh, NULL, &csc->sc_size) == 0) {
147 csc->sc_cbenable = CARDBUS_IO_ENABLE;
148 csc->sc_csr |= PCI_COMMAND_IO_ENABLE;
149 } else {
150 printf("%s: unable to map device registers\n",
151 ahc_name(ahc));
152 return;
153 }
154
155 /* Make sure the right access type is on the CardBus bridge. */
156 (*ct->ct_cf->cardbus_ctrl)(cc, csc->sc_cbenable);
157 (*ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
158
159 /* Enable the appropriate bits in the PCI CSR. */
160 reg = cardbus_conf_read(cc, cf, ca->ca_tag, PCI_COMMAND_STATUS_REG);
161 reg &= ~(PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE);
162 reg |= csc->sc_csr;
163 cardbus_conf_write(cc, cf, ca->ca_tag, PCI_COMMAND_STATUS_REG, reg);
164
165 /*
166 * Make sure the latency timer is set to some reasonable
167 * value.
168 */
169 reg = cardbus_conf_read(cc, cf, ca->ca_tag, PCI_BHLC_REG);
170 if (PCI_LATTIMER(reg) < 0x20) {
171 reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT);
172 reg |= (0x20 << PCI_LATTIMER_SHIFT);
173 cardbus_conf_write(cc, cf, ca->ca_tag, PCI_BHLC_REG, reg);
174 }
175
176 ahc_set_name(ahc, ahc->sc_dev.dv_xname);
177
178 ahc->parent_dmat = ca->ca_dmat;
179 ahc->tag = bst;
180 ahc->bsh = bsh;
181
182 /*
183 * ADP-1480 is always an AIC-7860.
184 */
185 ahc->chip = AHC_AIC7860 | AHC_PCI;
186 ahc->features = AHC_AIC7860_FE|AHC_REMOVABLE;
187 ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
188 if (PCI_REVISION(ca->ca_class) >= 1)
189 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
190
191 if (ahc_softc_init(ahc) != 0)
192 return;
193
194 /*
195 * On all CardBus adapters, we allow SCB paging.
196 */
197 ahc->flags = AHC_PAGESCBS;
198
199 ahc->channel = 'A';
200
201 ahc_intr_enable(ahc, FALSE);
202
203 ahc_reset(ahc);
204
205 /*
206 * Establish the interrupt.
207 */
208 ahc->ih = cardbus_intr_establish(cc, cf, ca->ca_intrline, IPL_BIO,
209 ahc_intr, ahc);
210 if (ahc->ih == NULL) {
211 printf("%s: unable to establish interrupt at %d\n",
212 ahc_name(ahc), ca->ca_intrline);
213 return;
214 }
215 printf("%s: interrupting at %d\n", ahc_name(ahc), ca->ca_intrline);
216
217 ahc_check_extport(ahc, &sxfrctl1);
218 /*
219 * Take the LED out of diagnostic mode.
220 */
221 sblkctl = ahc_inb(ahc, SBLKCTL);
222 ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
223
224 /*
225 * I don't know where this is set in the SEEPROM or by the
226 * BIOS, so we default to 100%.
227 */
228 ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
229
230 if (ahc->flags & AHC_USEDEFAULTS) {
231 /*
232 * We can't "use defaults", as we have no way
233 * of knowing what default settings hould be.
234 */
235 printf("%s: CardBus device requires an SEEPROM\n",
236 ahc_name(ahc));
237 return;
238 }
239
240 printf("%s: aic7860", ahc_name(ahc));
241
242 /*
243 * Record our termination setting for the
244 * generic initialization routine.
245 */
246 if ((sxfrctl1 & STPWEN) != 0)
247 ahc->flags |= AHC_TERM_ENB_A;
248
249 if (ahc_init(ahc)) {
250 ahc_free(ahc);
251 return;
252 }
253
254 ahc_attach(ahc);
255 }
256
257 int
258 ahc_cardbus_detach(self, flags)
259 struct device *self;
260 int flags;
261 {
262 struct ahc_cardbus_softc *csc = (void*)self;
263 struct ahc_softc *ahc = &csc->sc_ahc;
264
265 int rv;
266
267 rv = ahc_detach((void *)ahc, flags);
268 if (rv)
269 return rv;
270
271 if (ahc->ih) {
272 cardbus_intr_disestablish(csc->sc_ct->ct_cc,
273 csc->sc_ct->ct_cf, ahc->ih);
274 ahc->ih = 0;
275 }
276
277 if (csc->sc_cbenable) {
278 if (csc->sc_cbenable == CARDBUS_MEM_ENABLE)
279 Cardbus_mapreg_unmap(csc->sc_ct, AHC_CARDBUS_MMBA,
280 ahc->tag, ahc->bsh, csc->sc_size);
281 else if (csc->sc_cbenable == CARDBUS_IO_ENABLE)
282 Cardbus_mapreg_unmap(csc->sc_ct, AHC_CARDBUS_IOBA,
283 ahc->tag, ahc->bsh, csc->sc_size);
284 csc->sc_cbenable = 0;
285 }
286
287 return (0);
288 }
289
290
291 int
292 ahc_activate(struct device *self, enum devact act)
293 {
294 struct ahc_cardbus_softc *csc = (void*)self;
295 struct ahc_softc *ahc = &csc->sc_ahc;
296 int s, rv = 0;
297
298 s = splhigh();
299 switch (act) {
300 case DVACT_ACTIVATE:
301 rv = EOPNOTSUPP;
302 break;
303
304 case DVACT_DEACTIVATE:
305 if (ahc->sc_child != NULL)
306 rv = config_deactivate(ahc->sc_child);
307 break;
308 }
309 splx(s);
310
311 return (rv);
312 }
313