1 /* $NetBSD: nca_pcmcia.c,v 1.24 2008/04/28 20:23:56 martin Exp $ */
2
3 /*-
4 * Copyright (c) 2000, 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Charles M. Hannum.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: nca_pcmcia.c,v 1.24 2008/04/28 20:23:56 martin Exp $");
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/device.h>
38 #include <sys/buf.h>
39
40 #include <sys/bus.h>
41 #include <sys/intr.h>
42
43 #include <dev/scsipi/scsi_all.h>
44 #include <dev/scsipi/scsipi_all.h>
45 #include <dev/scsipi/scsiconf.h>
46
47 #include <dev/pcmcia/pcmciareg.h>
48 #include <dev/pcmcia/pcmciavar.h>
49 #include <dev/pcmcia/pcmciadevs.h>
50
51 #include <dev/ic/ncr5380reg.h>
52 #include <dev/ic/ncr5380var.h>
53 #include <dev/ic/ncr53c400reg.h>
54
55 struct nca_pcmcia_softc {
56 struct ncr5380_softc sc_ncr5380; /* glue to MI code */
57
58 /* PCMCIA-specific goo. */
59 struct pcmcia_function *sc_pf; /* our PCMCIA function */
60 void *sc_ih; /* interrupt handler */
61
62 int sc_state;
63 #define NCA_PCMCIA_ATTACHED 3
64 };
65
66 int nca_pcmcia_match(device_t, cfdata_t, void *);
67 int nca_pcmcia_validate_config(struct pcmcia_config_entry *);
68 void nca_pcmcia_attach(device_t, device_t, void *);
69 int nca_pcmcia_detach(device_t, int);
70 int nca_pcmcia_enable(device_t, int);
71
72 CFATTACH_DECL_NEW(nca_pcmcia, sizeof(struct nca_pcmcia_softc),
73 nca_pcmcia_match, nca_pcmcia_attach, nca_pcmcia_detach, NULL);
74
75 #define MIN_DMA_LEN 128
76
77 /* Options for disconnect/reselect, DMA, and interrupts. */
78 #define NCA_NO_DISCONNECT 0x00ff
79 #define NCA_NO_PARITY_CHK 0xff00
80
81 const struct pcmcia_product nca_pcmcia_products[] = {
82 { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
83 PCMCIA_CIS_INVALID },
84 };
85 const size_t nca_pcmcia_nproducts =
86 __arraycount(nca_pcmcia_products);
87
88 int
nca_pcmcia_match(device_t parent,cfdata_t cf,void * aux)89 nca_pcmcia_match(device_t parent, cfdata_t cf, void *aux)
90 {
91 struct pcmcia_attach_args *pa = aux;
92
93 if (pcmcia_product_lookup(pa, nca_pcmcia_products, nca_pcmcia_nproducts,
94 sizeof(nca_pcmcia_products[0]), NULL))
95 return 1;
96 return 0;
97 }
98
99 int
nca_pcmcia_validate_config(struct pcmcia_config_entry * cfe)100 nca_pcmcia_validate_config(struct pcmcia_config_entry *cfe)
101 {
102
103 if (cfe->iftype != PCMCIA_IFTYPE_IO ||
104 cfe->num_memspace != 0 ||
105 cfe->num_iospace != 1)
106 return EINVAL;
107 return 0;
108 }
109
110 void
nca_pcmcia_attach(device_t parent,device_t self,void * aux)111 nca_pcmcia_attach(device_t parent, device_t self, void *aux)
112 {
113 struct nca_pcmcia_softc *esc = device_private(self);
114 struct ncr5380_softc *sc = &esc->sc_ncr5380;
115 struct pcmcia_attach_args *pa = aux;
116 struct pcmcia_config_entry *cfe;
117 struct pcmcia_function *pf = pa->pf;
118 int flags;
119 int error;
120
121 sc->sc_dev = self;
122 esc->sc_pf = pf;
123
124 error = pcmcia_function_configure(pf, nca_pcmcia_validate_config);
125 if (error) {
126 aprint_error_dev(self, "configure failed, error=%d\n", error);
127 return;
128 }
129
130 cfe = pf->cfe;
131 sc->sc_regt = cfe->iospace[0].handle.iot;
132 sc->sc_regh = cfe->iospace[0].handle.ioh;
133
134 /* Initialize 5380 compatible register offsets. */
135 sc->sci_r0 = C400_5380_REG_OFFSET + 0;
136 sc->sci_r1 = C400_5380_REG_OFFSET + 1;
137 sc->sci_r2 = C400_5380_REG_OFFSET + 2;
138 sc->sci_r3 = C400_5380_REG_OFFSET + 3;
139 sc->sci_r4 = C400_5380_REG_OFFSET + 4;
140 sc->sci_r5 = C400_5380_REG_OFFSET + 5;
141 sc->sci_r6 = C400_5380_REG_OFFSET + 6;
142 sc->sci_r7 = C400_5380_REG_OFFSET + 7;
143
144 sc->sc_rev = NCR_VARIANT_NCR53C400;
145
146 /*
147 * MD function pointers used by the MI code.
148 */
149 sc->sc_pio_out = ncr5380_pio_out;
150 sc->sc_pio_in = ncr5380_pio_in;
151 sc->sc_dma_alloc = NULL;
152 sc->sc_dma_free = NULL;
153 sc->sc_dma_setup = NULL;
154 sc->sc_dma_start = NULL;
155 sc->sc_dma_poll = NULL;
156 sc->sc_dma_eop = NULL;
157 sc->sc_dma_stop = NULL;
158 sc->sc_intr_on = NULL;
159 sc->sc_intr_off = NULL;
160
161 /*
162 * Support the "options" (config file flags).
163 * Disconnect/reselect is a per-target mask.
164 * Interrupts and DMA are per-controller.
165 */
166 #if 0
167 flags = 0x0000; /* no options */
168 #else
169 flags = 0xffff; /* all options except force poll */
170 #endif
171
172 sc->sc_no_disconnect = (flags & NCA_NO_DISCONNECT);
173 sc->sc_parity_disable = (flags & NCA_NO_PARITY_CHK) >> 8;
174 sc->sc_min_dma_len = MIN_DMA_LEN;
175
176 error = nca_pcmcia_enable(self, 1);
177 if (error)
178 goto fail;
179
180 sc->sc_adapter.adapt_enable = nca_pcmcia_enable;
181 sc->sc_adapter.adapt_refcnt = 1;
182
183 ncr5380_attach(sc);
184 scsipi_adapter_delref(&sc->sc_adapter);
185 esc->sc_state = NCA_PCMCIA_ATTACHED;
186 return;
187
188 fail:
189 pcmcia_function_unconfigure(pf);
190 }
191
192 int
nca_pcmcia_detach(device_t self,int flags)193 nca_pcmcia_detach(device_t self, int flags)
194 {
195 struct nca_pcmcia_softc *sc = device_private(self);
196 int error;
197
198 if (sc->sc_state != NCA_PCMCIA_ATTACHED)
199 return 0;
200
201 error = ncr5380_detach(&sc->sc_ncr5380, flags);
202 if (error)
203 return error;
204
205 pcmcia_function_unconfigure(sc->sc_pf);
206
207 return 0;
208 }
209
210 int
nca_pcmcia_enable(device_t self,int onoff)211 nca_pcmcia_enable(device_t self, int onoff)
212 {
213 struct nca_pcmcia_softc *sc = device_private(self);
214 int error;
215
216 if (onoff) {
217 /* Establish the interrupt handler. */
218 sc->sc_ih = pcmcia_intr_establish(sc->sc_pf, IPL_BIO,
219 ncr5380_intr, &sc->sc_ncr5380);
220 if (sc->sc_ih == NULL)
221 return EIO;
222
223 error = pcmcia_function_enable(sc->sc_pf);
224 if (error) {
225 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
226 sc->sc_ih = 0;
227 return error;
228 }
229
230 /* Initialize only chip. */
231 ncr5380_init(&sc->sc_ncr5380);
232 } else {
233 pcmcia_function_disable(sc->sc_pf);
234 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_ih);
235 sc->sc_ih = 0;
236 }
237
238 return 0;
239 }
240