1/*	$NetBSD: nca_pcmcia.c,v 1.23 2008/04/04 16:19:51 tsutsui 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 1.23 2008/04/04 16:19:51 tsutsui 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
55struct 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
66int	nca_pcmcia_match(device_t, cfdata_t, void *);
67int	nca_pcmcia_validate_config(struct pcmcia_config_entry *);
68void	nca_pcmcia_attach(device_t, device_t, void *);
69int	nca_pcmcia_detach(device_t, int);
70int	nca_pcmcia_enable(device_t, int);
71
72CFATTACH_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
81const struct pcmcia_product nca_pcmcia_products[] = {
82	{ PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID,
83	  PCMCIA_CIS_INVALID },
84};
85const size_t nca_pcmcia_nproducts =
86    __arraycount(nca_pcmcia_products);
87
88int
89nca_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
99int
100nca_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
110void
111nca_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
188fail:
189	pcmcia_function_unconfigure(pf);
190}
191
192int
193nca_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
210int
211nca_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