puc_pci.c revision 139749 
1/*	$NetBSD: puc.c,v 1.7 2000/07/29 17:43:38 jlam Exp $	*/
2
3/*-
4 * Copyright (c) 2002 JF Hay.  All rights reserved.
5 * Copyright (c) 2000 M. Warner Losh.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice unmodified, this list of conditions, and the following
12 *    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 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD: head/sys/dev/puc/puc_pci.c 139749 2005-01-06 01:43:34Z imp $");
31
32/*-
33 * Copyright (c) 1996, 1998, 1999
34 *	Christopher G. Demetriou.  All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 *    notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 *    notice, this list of conditions and the following disclaimer in the
43 *    documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 *    must display the following acknowledgement:
46 *      This product includes software developed by Christopher G. Demetriou
47 *	for the NetBSD Project.
48 * 4. The name of the author may not be used to endorse or promote products
49 *    derived from this software without specific prior written permission
50 *
51 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
52 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
53 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
54 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
55 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
56 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
60 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 */
62
63#include <sys/cdefs.h>
64__FBSDID("$FreeBSD: head/sys/dev/puc/puc_pci.c 139749 2005-01-06 01:43:34Z imp $");
65
66#include "opt_puc.h"
67
68#include <sys/param.h>
69#include <sys/systm.h>
70#include <sys/kernel.h>
71#include <sys/module.h>
72#include <sys/bus.h>
73#include <sys/conf.h>
74#include <sys/malloc.h>
75
76#include <machine/bus.h>
77#include <machine/resource.h>
78#include <sys/rman.h>
79
80#include <dev/pci/pcireg.h>
81#include <dev/pci/pcivar.h>
82
83#define PUC_ENTRAILS	1
84#include <dev/puc/pucvar.h>
85
86extern const struct puc_device_description puc_devices[];
87
88int puc_config_win877(struct puc_softc *);
89
90static const struct puc_device_description *
91puc_find_description(uint32_t vend, uint32_t prod, uint32_t svend,
92    uint32_t sprod)
93{
94	int i;
95
96#define checkreg(val, index) \
97    (((val) & puc_devices[i].rmask[(index)]) == puc_devices[i].rval[(index)])
98
99	for (i = 0; puc_devices[i].name != NULL; i++) {
100		if (checkreg(vend, PUC_REG_VEND) &&
101		    checkreg(prod, PUC_REG_PROD) &&
102		    checkreg(svend, PUC_REG_SVEND) &&
103		    checkreg(sprod, PUC_REG_SPROD))
104			return (&puc_devices[i]);
105	}
106
107#undef checkreg
108
109	return (NULL);
110}
111
112static int
113puc_pci_probe(device_t dev)
114{
115	uint32_t v1, v2, d1, d2;
116	const struct puc_device_description *desc;
117
118	if ((pci_read_config(dev, PCIR_HDRTYPE, 1) & PCIM_HDRTYPE) != 0)
119		return (ENXIO);
120
121	v1 = pci_read_config(dev, PCIR_VENDOR, 2);
122	d1 = pci_read_config(dev, PCIR_DEVICE, 2);
123	v2 = pci_read_config(dev, PCIR_SUBVEND_0, 2);
124	d2 = pci_read_config(dev, PCIR_SUBDEV_0, 2);
125
126	desc = puc_find_description(v1, d1, v2, d2);
127	if (desc == NULL)
128		return (ENXIO);
129	device_set_desc(dev, desc->name);
130	return (0);
131}
132
133static int
134puc_pci_attach(device_t dev)
135{
136	uint32_t v1, v2, d1, d2;
137
138	v1 = pci_read_config(dev, PCIR_VENDOR, 2);
139	d1 = pci_read_config(dev, PCIR_DEVICE, 2);
140	v2 = pci_read_config(dev, PCIR_SUBVEND_0, 2);
141	d2 = pci_read_config(dev, PCIR_SUBDEV_0, 2);
142	return (puc_attach(dev, puc_find_description(v1, d1, v2, d2)));
143}
144
145static device_method_t puc_pci_methods[] = {
146    /* Device interface */
147    DEVMETHOD(device_probe,		puc_pci_probe),
148    DEVMETHOD(device_attach,		puc_pci_attach),
149
150    DEVMETHOD(bus_alloc_resource,	puc_alloc_resource),
151    DEVMETHOD(bus_release_resource,	puc_release_resource),
152    DEVMETHOD(bus_get_resource,		puc_get_resource),
153    DEVMETHOD(bus_read_ivar,		puc_read_ivar),
154    DEVMETHOD(bus_setup_intr,		puc_setup_intr),
155    DEVMETHOD(bus_teardown_intr,	puc_teardown_intr),
156    DEVMETHOD(bus_print_child,		bus_generic_print_child),
157    DEVMETHOD(bus_driver_added,		bus_generic_driver_added),
158    { 0, 0 }
159};
160
161static driver_t puc_pci_driver = {
162	"puc",
163	puc_pci_methods,
164	sizeof(struct puc_softc),
165};
166
167DRIVER_MODULE(puc, pci, puc_pci_driver, puc_devclass, 0, 0);
168DRIVER_MODULE(puc, cardbus, puc_pci_driver, puc_devclass, 0, 0);
169
170
171#define rdspio(indx)		(bus_space_write_1(bst, bsh, efir, indx), \
172				bus_space_read_1(bst, bsh, efdr))
173#define wrspio(indx,data)	(bus_space_write_1(bst, bsh, efir, indx), \
174				bus_space_write_1(bst, bsh, efdr, data))
175
176#ifdef PUC_DEBUG
177static void
178puc_print_win877(bus_space_tag_t bst, bus_space_handle_t bsh, u_int efir,
179	u_int efdr)
180{
181	u_char cr00, cr01, cr04, cr09, cr0d, cr14, cr15, cr16, cr17;
182	u_char cr18, cr19, cr24, cr25, cr28, cr2c, cr31, cr32;
183
184	cr00 = rdspio(0x00);
185	cr01 = rdspio(0x01);
186	cr04 = rdspio(0x04);
187	cr09 = rdspio(0x09);
188	cr0d = rdspio(0x0d);
189	cr14 = rdspio(0x14);
190	cr15 = rdspio(0x15);
191	cr16 = rdspio(0x16);
192	cr17 = rdspio(0x17);
193	cr18 = rdspio(0x18);
194	cr19 = rdspio(0x19);
195	cr24 = rdspio(0x24);
196	cr25 = rdspio(0x25);
197	cr28 = rdspio(0x28);
198	cr2c = rdspio(0x2c);
199	cr31 = rdspio(0x31);
200	cr32 = rdspio(0x32);
201	printf("877T: cr00 %x, cr01 %x, cr04 %x, cr09 %x, cr0d %x, cr14 %x, "
202	    "cr15 %x, cr16 %x, cr17 %x, cr18 %x, cr19 %x, cr24 %x, cr25 %x, "
203	    "cr28 %x, cr2c %x, cr31 %x, cr32 %x\n", cr00, cr01, cr04, cr09,
204	    cr0d, cr14, cr15, cr16, cr17,
205	    cr18, cr19, cr24, cr25, cr28, cr2c, cr31, cr32);
206}
207#endif
208
209int
210puc_config_win877(struct puc_softc *sc)
211{
212	u_char val;
213	u_int efir, efdr;
214	bus_space_tag_t bst;
215	bus_space_handle_t bsh;
216        struct resource *res;
217
218	res = sc->sc_bar_mappings[0].res;
219
220	bst = rman_get_bustag(res);
221	bsh = rman_get_bushandle(res);
222
223	/* configure the first W83877TF */
224	bus_space_write_1(bst, bsh, 0x250, 0x89);
225	efir = 0x251;
226	efdr = 0x252;
227	val = rdspio(0x09) & 0x0f;
228	if (val != 0x0c) {
229		printf("conf_win877: Oops not a W83877TF\n");
230		return (ENXIO);
231	}
232
233#ifdef PUC_DEBUG
234	printf("before: ");
235	puc_print_win877(bst, bsh, efir, efdr);
236#endif
237
238	val = rdspio(0x16);
239	val |= 0x04;
240	wrspio(0x16, val);
241	val &= ~0x04;
242	wrspio(0x16, val);
243
244	wrspio(0x24, 0x2e8 >> 2);
245	wrspio(0x25, 0x2f8 >> 2);
246	wrspio(0x17, 0x03);
247	wrspio(0x28, 0x43);
248
249#ifdef PUC_DEBUG
250	printf("after: ");
251	puc_print_win877(bst, bsh, efir, efdr);
252#endif
253
254	bus_space_write_1(bst, bsh, 0x250, 0xaa);
255
256	/* configure the second W83877TF */
257	bus_space_write_1(bst, bsh, 0x3f0, 0x87);
258	bus_space_write_1(bst, bsh, 0x3f0, 0x87);
259	efir = 0x3f0;
260	efdr = 0x3f1;
261	val = rdspio(0x09) & 0x0f;
262	if (val != 0x0c) {
263		printf("conf_win877: Oops not a W83877TF\n");
264		return(ENXIO);
265	}
266
267#ifdef PUC_DEBUG
268	printf("before: ");
269	puc_print_win877(bst, bsh, efir, efdr);
270#endif
271
272	val = rdspio(0x16);
273	val |= 0x04;
274	wrspio(0x16, val);
275	val &= ~0x04;
276	wrspio(0x16, val);
277
278	wrspio(0x24, 0x3e8 >> 2);
279	wrspio(0x25, 0x3f8 >> 2);
280	wrspio(0x17, 0x03);
281	wrspio(0x28, 0x43);
282
283#ifdef PUC_DEBUG
284	printf("after: ");
285	puc_print_win877(bst, bsh, efir, efdr);
286#endif
287
288	bus_space_write_1(bst, bsh, 0x3f0, 0xaa);
289	return (0);
290}
291
292#undef rdspio
293#undef wrspio
294
295