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vpo.c (55205) vpo.c (55939)
1/*-
1/*-
2 * Copyright (c) 1997, 1998 Nicolas Souchu
2 * Copyright (c) 1997, 1998, 1999 Nicolas Souchu
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 * 2. Redistributions in binary form must reproduce the above copyright

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18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
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 * 2. Redistributions in binary form must reproduce the above copyright

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18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/dev/ppbus/vpo.c 55205 1999-12-29 04:46:21Z peter $
26 * $FreeBSD: head/sys/dev/ppbus/vpo.c 55939 2000-01-14 00:18:06Z nsouch $
27 *
28 */
29
30#ifdef _KERNEL
31#include <sys/param.h>
32#include <sys/systm.h>
27 *
28 */
29
30#ifdef _KERNEL
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/malloc.h>
34#include <sys/buf.h>
33#include <sys/module.h>
34#include <sys/bus.h>
35
36#include <machine/clock.h>
37
38#endif /* _KERNEL */
39
40#include <cam/cam.h>
41#include <cam/cam_ccb.h>
42#include <cam/cam_sim.h>

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51#include <sys/kernel.h>
52#endif
53
54#include "opt_vpo.h"
55
56#include <dev/ppbus/ppbconf.h>
57#include <dev/ppbus/vpoio.h>
58
35
36#include <machine/clock.h>
37
38#endif /* _KERNEL */
39
40#include <cam/cam.h>
41#include <cam/cam_ccb.h>
42#include <cam/cam_sim.h>

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51#include <sys/kernel.h>
52#endif
53
54#include "opt_vpo.h"
55
56#include <dev/ppbus/ppbconf.h>
57#include <dev/ppbus/vpoio.h>
58
59#include "ppbus_if.h"
60
59struct vpo_sense {
60 struct scsi_sense cmd;
61 unsigned int stat;
62 unsigned int count;
63};
64
65struct vpo_data {
66 unsigned short vpo_unit;

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74 struct cam_sim *sim;
75 struct cam_path *path;
76
77 struct vpo_sense vpo_sense;
78
79 struct vpoio_data vpo_io; /* interface to low level functions */
80};
81
61struct vpo_sense {
62 struct scsi_sense cmd;
63 unsigned int stat;
64 unsigned int count;
65};
66
67struct vpo_data {
68 unsigned short vpo_unit;

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76 struct cam_sim *sim;
77 struct cam_path *path;
78
79 struct vpo_sense vpo_sense;
80
81 struct vpoio_data vpo_io; /* interface to low level functions */
82};
83
82/* cam related functions */
83static void vpo_action(struct cam_sim *sim, union ccb *ccb);
84static void vpo_poll(struct cam_sim *sim);
84static int vpo_probe(device_t);
85static int vpo_attach(device_t);
85
86
86static int nvpo = 0;
87#define MAXVP0 8 /* XXX not much better! */
88static struct vpo_data *vpodata[MAXVP0];
87#define DEVTOSOFTC(dev) \
88 ((struct vpo_data *)device_get_softc(dev))
89
89
90#ifdef _KERNEL
90static devclass_t vpo_devclass;
91
91
92/*
93 * Make ourselves visible as a ppbus driver
94 */
95static struct ppb_device *vpoprobe(struct ppb_data *ppb);
96static int vpoattach(struct ppb_device *dev);
92static device_method_t vpo_methods[] = {
93 /* device interface */
94 DEVMETHOD(device_probe, vpo_probe),
95 DEVMETHOD(device_attach, vpo_attach),
97
96
98static struct ppb_driver vpodriver = {
99 vpoprobe, vpoattach, "vpo"
97 { 0, 0 }
100};
98};
101DATA_SET(ppbdriver_set, vpodriver);
102
99
103#endif
100static driver_t vpo_driver = {
101 "vpo",
102 vpo_methods,
103 sizeof(struct vpo_data),
104};
104
105
106/* cam related functions */
107static void vpo_action(struct cam_sim *sim, union ccb *ccb);
108static void vpo_poll(struct cam_sim *sim);
109
105/*
110/*
106 * vpoprobe()
107 *
108 * Called by ppb_attachdevs().
111 * vpo_probe()
109 */
112 */
110static struct ppb_device *
111vpoprobe(struct ppb_data *ppb)
113static int
114vpo_probe(device_t dev)
112{
113 struct vpo_data *vpo;
115{
116 struct vpo_data *vpo;
114 struct ppb_device *dev;
117 int error;
115
118
116 if (nvpo >= MAXVP0) {
117 printf("vpo: Too many devices (max %d)\n", MAXVP0);
118 return(NULL);
119 }
120
121 vpo = (struct vpo_data *)malloc(sizeof(struct vpo_data),
122 M_DEVBUF, M_NOWAIT);
123 if (!vpo) {
124 printf("vpo: cannot malloc!\n");
125 return(NULL);
126 }
119 vpo = DEVTOSOFTC(dev);
127 bzero(vpo, sizeof(struct vpo_data));
128
120 bzero(vpo, sizeof(struct vpo_data));
121
129 vpodata[nvpo] = vpo;
130
131 /* vpo dependent initialisation */
122 /* vpo dependent initialisation */
132 vpo->vpo_unit = nvpo;
123 vpo->vpo_unit = device_get_unit(dev);
133
124
134 /* ok, go to next device on next probe */
135 nvpo ++;
136
137 /* low level probe */
138 vpoio_set_unit(&vpo->vpo_io, vpo->vpo_unit);
139
140 /* check ZIP before ZIP+ or imm_probe() will send controls to
141 * the printer or whatelse connected to the port */
125 /* low level probe */
126 vpoio_set_unit(&vpo->vpo_io, vpo->vpo_unit);
127
128 /* check ZIP before ZIP+ or imm_probe() will send controls to
129 * the printer or whatelse connected to the port */
142 if ((dev = vpoio_probe(ppb, &vpo->vpo_io))) {
130 if ((error = vpoio_probe(dev, &vpo->vpo_io)) == 0) {
143 vpo->vpo_isplus = 0;
131 vpo->vpo_isplus = 0;
144 } else if ((dev = imm_probe(ppb, &vpo->vpo_io))) {
132 device_set_desc(dev,
133 "Iomega VPI0 Parallel to SCSI interface");
134 } else if ((error = imm_probe(dev, &vpo->vpo_io)) == 0) {
145 vpo->vpo_isplus = 1;
135 vpo->vpo_isplus = 1;
136 device_set_desc(dev,
137 "Iomega Matchmaker Parallel to SCSI interface");
146 } else {
138 } else {
147 free(vpo, M_DEVBUF);
148 return (NULL);
139 return (error);
149 }
150
140 }
141
151 return (dev);
142 return (0);
152}
153
154/*
143}
144
145/*
155 * vpoattach()
156 *
157 * Called by ppb_attachdevs().
146 * vpo_attach()
158 */
159static int
147 */
148static int
160vpoattach(struct ppb_device *dev)
149vpo_attach(device_t dev)
161{
150{
162 struct vpo_data *vpo = vpodata[dev->id_unit];
151 struct vpo_data *vpo = DEVTOSOFTC(dev);
163 struct cam_devq *devq;
152 struct cam_devq *devq;
153 int error;
164
165 /* low level attachment */
166 if (vpo->vpo_isplus) {
154
155 /* low level attachment */
156 if (vpo->vpo_isplus) {
167 if (!imm_attach(&vpo->vpo_io))
168 return (0);
157 if ((error = imm_attach(&vpo->vpo_io)))
158 return (error);
169 } else {
159 } else {
170 if (!vpoio_attach(&vpo->vpo_io))
171 return (0);
160 if ((error = vpoio_attach(&vpo->vpo_io)))
161 return (error);
172 }
173
174 /*
175 ** Now tell the generic SCSI layer
176 ** about our bus.
177 */
178 devq = cam_simq_alloc(/*maxopenings*/1);
179 /* XXX What about low-level detach on error? */
180 if (devq == NULL)
162 }
163
164 /*
165 ** Now tell the generic SCSI layer
166 ** about our bus.
167 */
168 devq = cam_simq_alloc(/*maxopenings*/1);
169 /* XXX What about low-level detach on error? */
170 if (devq == NULL)
181 return (0);
171 return (ENXIO);
182
172
183 vpo->sim = cam_sim_alloc(vpo_action, vpo_poll, "vpo", vpo, dev->id_unit,
173 vpo->sim = cam_sim_alloc(vpo_action, vpo_poll, "vpo", vpo,
174 device_get_unit(dev),
184 /*untagged*/1, /*tagged*/0, devq);
185 if (vpo->sim == NULL) {
186 cam_simq_free(devq);
175 /*untagged*/1, /*tagged*/0, devq);
176 if (vpo->sim == NULL) {
177 cam_simq_free(devq);
187 return (0);
178 return (ENXIO);
188 }
189
190 if (xpt_bus_register(vpo->sim, /*bus*/0) != CAM_SUCCESS) {
191 cam_sim_free(vpo->sim, /*free_devq*/TRUE);
179 }
180
181 if (xpt_bus_register(vpo->sim, /*bus*/0) != CAM_SUCCESS) {
182 cam_sim_free(vpo->sim, /*free_devq*/TRUE);
192 return (0);
183 return (ENXIO);
193 }
194
195 if (xpt_create_path(&vpo->path, /*periph*/NULL,
196 cam_sim_path(vpo->sim), CAM_TARGET_WILDCARD,
197 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
198 xpt_bus_deregister(cam_sim_path(vpo->sim));
199 cam_sim_free(vpo->sim, /*free_devq*/TRUE);
184 }
185
186 if (xpt_create_path(&vpo->path, /*periph*/NULL,
187 cam_sim_path(vpo->sim), CAM_TARGET_WILDCARD,
188 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
189 xpt_bus_deregister(cam_sim_path(vpo->sim));
190 cam_sim_free(vpo->sim, /*free_devq*/TRUE);
200 return (0);
191 return (ENXIO);
201 }
202
203 /* all went ok */
204
192 }
193
194 /* all went ok */
195
205 return (1);
196 return (0);
206}
207
208/*
209 * vpo_intr()
210 */
211static void
212vpo_intr(struct vpo_data *vpo, struct ccb_scsiio *csio)
213{

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440}
441
442static void
443vpo_poll(struct cam_sim *sim)
444{
445 /* The ZIP is actually always polled throw vpo_action() */
446 return;
447}
197}
198
199/*
200 * vpo_intr()
201 */
202static void
203vpo_intr(struct vpo_data *vpo, struct ccb_scsiio *csio)
204{

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431}
432
433static void
434vpo_poll(struct cam_sim *sim)
435{
436 /* The ZIP is actually always polled throw vpo_action() */
437 return;
438}
439
440DRIVER_MODULE(vpo, ppbus, vpo_driver, vpo_devclass, 0, 0);