1/* $NetBSD: ahc_cardbus.c,v 1.36 2016/07/14 04:00:45 msaitoh Exp $ */
2
3/*-
4 * Copyright (c) 2000, 2005 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*
34 * CardBus front-end for the Adaptec AIC-7xxx family of SCSI controllers.
35 *
36 * TODO:
37 * - power management
38 */
39
40#include <sys/cdefs.h>
41__KERNEL_RCSID(0, "$NetBSD: ahc_cardbus.c,v 1.36 2016/07/14 04:00:45 msaitoh Exp $");
42
43#include "opt_ahc_cardbus.h"
44
45#include <sys/param.h>
46#include <sys/systm.h>
47#include <sys/malloc.h>
48#include <sys/kernel.h>
49#include <sys/queue.h>
50#include <sys/device.h>
51
52#include <sys/bus.h>
53#include <sys/intr.h>
54
55#include <dev/scsipi/scsi_all.h>
56#include <dev/scsipi/scsipi_all.h>
57#include <dev/scsipi/scsiconf.h>
58
59#include <dev/pci/pcireg.h>
60
61#include <dev/cardbus/cardbusvar.h>
62#include <dev/pci/pcidevs.h>
63
64#include <dev/ic/aic7xxx_osm.h>
65#include <dev/ic/aic7xxx_inline.h>
66
67
68#ifndef AHC_CARDBUS_DEFAULT_SCSI_ID
69#define AHC_CARDBUS_DEFAULT_SCSI_ID 0x7
70#endif
71
72#define AHC_CARDBUS_IOBA 0x10
73#define AHC_CARDBUS_MMBA 0x14
74
75struct ahc_cardbus_softc {
76 struct ahc_softc sc_ahc; /* real AHC */
77
78 /* CardBus-specific goo. */
79 cardbus_devfunc_t sc_ct; /* our CardBus devfuncs */
80 pcitag_t sc_tag;
81
82 int sc_bar;
83 pcireg_t sc_csr;
84 bus_size_t sc_size;
85};
86
87int ahc_cardbus_match(device_t, cfdata_t, void *);
88void ahc_cardbus_attach(device_t, device_t, void *);
89int ahc_cardbus_detach(device_t, int);
90
91CFATTACH_DECL_NEW(ahc_cardbus, sizeof(struct ahc_cardbus_softc),
92 ahc_cardbus_match, ahc_cardbus_attach, ahc_cardbus_detach, NULL);
93
94int
95ahc_cardbus_match(device_t parent, cfdata_t match, void *aux)
96{
97 struct cardbus_attach_args *ca = aux;
98
99 if (PCI_VENDOR(ca->ca_id) == PCI_VENDOR_ADP &&
100 PCI_PRODUCT(ca->ca_id) == PCI_PRODUCT_ADP_APA1480)
101 return (1);
102
103 return (0);
104}
105
106void
107ahc_cardbus_attach(device_t parent, device_t self, void *aux)
108{
109 struct cardbus_attach_args *ca = aux;
110 struct ahc_cardbus_softc *csc = device_private(self);
111 struct ahc_softc *ahc = &csc->sc_ahc;
112 cardbus_devfunc_t ct = ca->ca_ct;
113 bus_space_tag_t bst;
114 bus_space_handle_t bsh;
115 pcireg_t reg;
116 u_int sxfrctl1 = 0;
117 u_char sblkctl;
118
119
120 ahc->sc_dev = self;
121 csc->sc_ct = ct;
122 csc->sc_tag = ca->ca_tag;
123
124 printf(": Adaptec ADP-1480 SCSI\n");
125
126 /*
127 * Map the device.
128 */
129 csc->sc_csr = PCI_COMMAND_MASTER_ENABLE;
130 if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_MMBA,
131 PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
132 &bst, &bsh, NULL, &csc->sc_size) == 0) {
133 csc->sc_bar = AHC_CARDBUS_MMBA;
134 csc->sc_csr |= PCI_COMMAND_MEM_ENABLE;
135 } else if (Cardbus_mapreg_map(csc->sc_ct, AHC_CARDBUS_IOBA,
136 PCI_MAPREG_TYPE_IO, 0, &bst, &bsh, NULL, &csc->sc_size) == 0) {
137 csc->sc_bar = AHC_CARDBUS_IOBA;
138 csc->sc_csr |= PCI_COMMAND_IO_ENABLE;
139 } else {
140 csc->sc_bar = 0;
141 aprint_error("%s: unable to map device registers\n",
142 ahc_name(ahc));
143 return;
144 }
145
146 /* Enable the appropriate bits in the PCI CSR. */
147 reg = Cardbus_conf_read(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG);
148 reg &= ~(PCI_COMMAND_IO_ENABLE|PCI_COMMAND_MEM_ENABLE);
149 reg |= csc->sc_csr;
150 Cardbus_conf_write(ct, ca->ca_tag, PCI_COMMAND_STATUS_REG, reg);
151
152 /*
153 * Make sure the latency timer is set to some reasonable
154 * value.
155 */
156 reg = Cardbus_conf_read(ct, ca->ca_tag, PCI_BHLC_REG);
157 if (PCI_LATTIMER(reg) < 0x20) {
158 reg &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT);
159 reg |= (0x20 << PCI_LATTIMER_SHIFT);
160 Cardbus_conf_write(ct, ca->ca_tag, PCI_BHLC_REG, reg);
161 }
162
163 ahc_set_name(ahc, device_xname(ahc->sc_dev));
164
165 ahc->parent_dmat = ca->ca_dmat;
166 ahc->tag = bst;
167 ahc->bsh = bsh;
168
169 /*
170 * ADP-1480 is always an AIC-7860.
171 */
172 ahc->chip = AHC_AIC7860 | AHC_PCI;
173 ahc->features = AHC_AIC7860_FE|AHC_REMOVABLE;
174 ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG;
175 if (PCI_REVISION(ca->ca_class) >= 1)
176 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG;
177
178 if (ahc_softc_init(ahc) != 0)
179 return;
180
181 /*
182 * On all CardBus adapters, we allow SCB paging.
183 */
184 ahc->flags = AHC_PAGESCBS;
185
186 ahc->channel = 'A';
187
188 ahc_intr_enable(ahc, FALSE);
189
190 ahc_reset(ahc);
191
192 /*
193 * Establish the interrupt.
194 */
195 ahc->ih = Cardbus_intr_establish(ct, IPL_BIO, ahc_intr, ahc);
196 if (ahc->ih == NULL) {
197 aprint_error("%s: unable to establish interrupt\n",
198 ahc_name(ahc));
199 return;
200 }
201
202 ahc->seep_config = malloc(sizeof(*ahc->seep_config),
203 M_DEVBUF, M_NOWAIT);
204 if (ahc->seep_config == NULL)
205 return;
206
207 ahc_check_extport(ahc, &sxfrctl1);
208 /*
209 * Take the LED out of diagnostic mode.
210 */
211 sblkctl = ahc_inb(ahc, SBLKCTL);
212 ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON)));
213
214 /*
215 * I don't know where this is set in the SEEPROM or by the
216 * BIOS, so we default to 100%.
217 */
218 ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100);
219
220 if (ahc->flags & AHC_USEDEFAULTS) {
221 int our_id;
222 /*
223 * Assume only one connector and always turn
224 * on termination.
225 */
226 our_id = AHC_CARDBUS_DEFAULT_SCSI_ID;
227 sxfrctl1 = STPWEN;
228 ahc_outb(ahc, SCSICONF, our_id | ENSPCHK | RESET_SCSI);
229 ahc->our_id = our_id;
230 }
231
232 printf("%s: aic7860", ahc_name(ahc));
233
234 /*
235 * Record our termination setting for the
236 * generic initialization routine.
237 */
238 if ((sxfrctl1 & STPWEN) != 0)
239 ahc->flags |= AHC_TERM_ENB_A;
240
241 if (ahc_init(ahc)) {
242 ahc_free(ahc);
243 return;
244 }
245
246 ahc_attach(ahc);
247}
248
249int
250ahc_cardbus_detach(device_t self, int flags)
251{
252 struct ahc_cardbus_softc *csc = device_private(self);
253 struct ahc_softc *ahc = &csc->sc_ahc;
254
255 int rv;
256
257 rv = ahc_detach(ahc, flags);
258 if (rv)
259 return rv;
260
261 if (ahc->ih) {
262 Cardbus_intr_disestablish(csc->sc_ct, ahc->ih);
263 ahc->ih = 0;
264 }
265
266 if (csc->sc_bar != 0) {
267 Cardbus_mapreg_unmap(csc->sc_ct, csc->sc_bar,
268 ahc->tag, ahc->bsh, csc->sc_size);
269 csc->sc_bar = 0;
270 }
271
272 return (0);
273}
274