summaryrefslogtreecommitdiffstats
path: root/sys/dev/aic/aic_cbus.c
blob: c6419899d34257a77359a43186fe7fea4708a18f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
/*-
 * Copyright (c) 1999 Luoqi Chen.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>

#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
 
#include <isa/isavar.h>
#include <dev/aic/aic6360reg.h>
#include <dev/aic/aicvar.h>
  
struct aic_isa_softc {
	struct	aic_softc sc_aic;
	struct	resource *sc_port;
	struct	resource *sc_irq;
	struct	resource *sc_drq;
	void	*sc_ih;
};

static int aic_isa_alloc_resources(device_t);
static void aic_isa_release_resources(device_t);
static int aic_isa_probe(device_t);
static int aic_isa_attach(device_t);

static u_int aic_isa_ports[] = { 0x1840 };
#define	AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0]))
#define	AIC_ISA_PORTSIZE 0x20

#define	AIC98_GENERIC		0x00
#define	AIC98_NEC100		0x01
#define	AIC_TYPE98(x)		(((x) >> 16) & 0x01)

static bus_addr_t aicport_generic[AIC_ISA_PORTSIZE] = {
	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
	0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
};
static bus_addr_t aicport_100[AIC_ISA_PORTSIZE] = {
	0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e,
	0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
	0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e,
	0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
};

static struct isa_pnp_id aic_ids[] = {
	{ 0xa180a3b8, "NEC PC9801-100" },
 	{ 0 }
};

static int
aic_isa_alloc_resources(device_t dev)
{
	struct aic_isa_softc *sc = device_get_softc(dev);
	int rid;
	bus_addr_t *bs_iat;

	if ((isa_get_logicalid(dev) == 0xa180a3b8) ||
	    (AIC_TYPE98(device_get_flags(dev)) == AIC98_NEC100))
		bs_iat = aicport_100;
	else
		bs_iat = aicport_generic;

	sc->sc_port = sc->sc_irq = sc->sc_drq = 0;

	rid = 0;
	sc->sc_port = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid,
					  bs_iat, AIC_ISA_PORTSIZE, RF_ACTIVE);
	if (!sc->sc_port) {
		device_printf(dev, "I/O port allocation failed\n");
		return (ENOMEM);
	}
	isa_load_resourcev(sc->sc_port, bs_iat, AIC_ISA_PORTSIZE);

	if (isa_get_irq(dev) != -1) {
		rid = 0;
		sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
						    RF_ACTIVE);
		if (!sc->sc_irq) {
			device_printf(dev, "IRQ allocation failed\n");
			aic_isa_release_resources(dev);
			return (ENOMEM);
		}
	}

	if (isa_get_drq(dev) != -1) {
		rid = 0;
		sc->sc_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
						    RF_ACTIVE);
		if (!sc->sc_drq) {
			device_printf(dev, "DRQ allocation failed\n");
			aic_isa_release_resources(dev);
			return (ENOMEM);
		}
	}

	sc->sc_aic.dev = dev;
	sc->sc_aic.unit = device_get_unit(dev);
	sc->sc_aic.tag = rman_get_bustag(sc->sc_port);
	sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port);
	return (0);
}

static void
aic_isa_release_resources(device_t dev)
{
	struct aic_isa_softc *sc = device_get_softc(dev);

	if (sc->sc_port)
		bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port);
	if (sc->sc_irq)
		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
	if (sc->sc_drq)
		bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq);
	sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
}

static int
aic_isa_probe(device_t dev)
{
	struct aic_isa_softc *sc = device_get_softc(dev);
	struct aic_softc *aic = &sc->sc_aic;
	int numports, i;
	u_int port, *ports;
	u_int8_t porta;

	if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO)
		return (ENXIO);

	port = isa_get_port(dev);
	if (port != -1) {
		ports = &port;
		numports = 1;
	} else {
		ports = aic_isa_ports;
		numports = AIC_ISA_NUMPORTS;
	}

	for (i = 0; i < numports; i++) {
		if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i], 1))
			continue;
		if (aic_isa_alloc_resources(dev))
			continue;
		if (!aic_probe(aic)) {
			aic_isa_release_resources(dev);
			break;
		}
		aic_isa_release_resources(dev);
	}

	if (i == numports)
		return (ENXIO);

	porta = aic_inb(aic, PORTA);
	if (isa_get_irq(dev) == -1)
		bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1);
	if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1)
		bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1);
	device_set_desc(dev, "Adaptec 6260/6360 SCSI controller");
	return (0);
}

static int
aic_isa_attach(device_t dev)
{
	struct aic_isa_softc *sc = device_get_softc(dev);
	struct aic_softc *aic = &sc->sc_aic;
	int error;

	error = aic_isa_alloc_resources(dev);
	if (error) {
		device_printf(dev, "resource allocation failed\n");
		return (error);
	}

	error = aic_attach(aic);
	if (error) {
		device_printf(dev, "attach failed\n");
		aic_isa_release_resources(dev);
		return (error);
	}

	error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM|INTR_ENTROPY,
				NULL, aic_intr, aic, &sc->sc_ih);
	if (error) {
		device_printf(dev, "failed to register interrupt handler\n");
		aic_isa_release_resources(dev);
		return (error);
	}
	return (0);
}

static int
aic_isa_detach(device_t dev)
{
	struct aic_isa_softc *sc = device_get_softc(dev);
	struct aic_softc *aic = &sc->sc_aic;
	int error;

	error = aic_detach(aic);
	if (error) {
		device_printf(dev, "detach failed\n");
		return (error);
	}

	error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
	if (error) {
		device_printf(dev, "failed to unregister interrupt handler\n");
	}

	aic_isa_release_resources(dev);
	return (0);
}

static device_method_t aic_isa_methods[] = {
	/* Device interface */
	DEVMETHOD(device_probe,		aic_isa_probe),
	DEVMETHOD(device_attach,	aic_isa_attach),
	DEVMETHOD(device_detach,	aic_isa_detach),
	{ 0, 0 }
};

static driver_t aic_isa_driver = {
	"aic",
	aic_isa_methods, sizeof(struct aic_isa_softc),
};

extern devclass_t aic_devclass;

MODULE_DEPEND(aic, cam, 1,1,1);
DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0);
OpenPOWER on IntegriCloud