1 /*-
2 * Copyright (c) 1999,2000 Jonathan Lemon
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
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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: src/sys/dev/ida/ida_pci.c,v 1.7.2.7 2001/07/30 20:29:58 jlemon Exp $
27 */
28
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/malloc.h>
32 #include <sys/kernel.h>
33
34 #include <sys/buf.h>
35 #include <sys/bus.h>
36 #include <sys/devicestat.h>
37 #include <sys/disk.h>
38 #include <sys/rman.h>
39
40 #include <bus/pci/pcireg.h>
41 #include <bus/pci/pcivar.h>
42
43 #include "idavar.h"
44 #include "idareg.h"
45
46 #define IDA_PCI_MAX_DMA_ADDR 0xFFFFFFFF
47 #define IDA_PCI_MAX_DMA_COUNT 0xFFFFFFFF
48
49 #define IDA_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */
50
51 #define IDA_DEVICEID_SMART 0xAE100E11
52 #define IDA_DEVICEID_DEC_SMART 0x00461011
53 #define IDA_DEVICEID_NCR_53C1510 0x00101000
54
55 static int
ida_v3_fifo_full(struct ida_softc * ida)56 ida_v3_fifo_full(struct ida_softc *ida)
57 {
58 return (ida_inl(ida, R_CMD_FIFO) == 0);
59 }
60
61 static void
ida_v3_submit(struct ida_softc * ida,struct ida_qcb * qcb)62 ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb)
63 {
64 ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr);
65 }
66
67 static bus_addr_t
ida_v3_done(struct ida_softc * ida)68 ida_v3_done(struct ida_softc *ida)
69 {
70 return (ida_inl(ida, R_DONE_FIFO));
71 }
72
73 static int
ida_v3_int_pending(struct ida_softc * ida)74 ida_v3_int_pending(struct ida_softc *ida)
75 {
76 return (ida_inl(ida, R_INT_PENDING));
77 }
78
79 static void
ida_v3_int_enable(struct ida_softc * ida,int enable)80 ida_v3_int_enable(struct ida_softc *ida, int enable)
81 {
82 if (enable)
83 ida->flags |= IDA_INTERRUPTS;
84 else
85 ida->flags &= ~IDA_INTERRUPTS;
86 ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE);
87 }
88
89 static int
ida_v4_fifo_full(struct ida_softc * ida)90 ida_v4_fifo_full(struct ida_softc *ida)
91 {
92 return (ida_inl(ida, R_42XX_REQUEST) != 0);
93 }
94
95 static void
ida_v4_submit(struct ida_softc * ida,struct ida_qcb * qcb)96 ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb)
97 {
98 ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr);
99 }
100
101 static bus_addr_t
ida_v4_done(struct ida_softc * ida)102 ida_v4_done(struct ida_softc *ida)
103 {
104 bus_addr_t completed;
105
106 completed = ida_inl(ida, R_42XX_REPLY);
107 if (completed == -1)
108 return (0); /* fifo is empty */
109 ida_outl(ida, R_42XX_REPLY, 0); /* confirm read */
110 return (completed);
111 }
112
113 static int
ida_v4_int_pending(struct ida_softc * ida)114 ida_v4_int_pending(struct ida_softc *ida)
115 {
116 return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING);
117 }
118
119 static void
ida_v4_int_enable(struct ida_softc * ida,int enable)120 ida_v4_int_enable(struct ida_softc *ida, int enable)
121 {
122 if (enable)
123 ida->flags |= IDA_INTERRUPTS;
124 else
125 ida->flags &= ~IDA_INTERRUPTS;
126 ida_outl(ida, R_42XX_INT_MASK,
127 enable ? INT_ENABLE_42XX : INT_DISABLE_42XX);
128 }
129
130 static struct ida_access ida_v3_access = {
131 ida_v3_fifo_full,
132 ida_v3_submit,
133 ida_v3_done,
134 ida_v3_int_pending,
135 ida_v3_int_enable,
136 };
137
138 static struct ida_access ida_v4_access = {
139 ida_v4_fifo_full,
140 ida_v4_submit,
141 ida_v4_done,
142 ida_v4_int_pending,
143 ida_v4_int_enable,
144 };
145
146 static struct ida_board board_id[] = {
147 { 0x40300E11, "Compaq SMART-2/P array controller",
148 &ida_v3_access, 0 },
149 { 0x40310E11, "Compaq SMART-2SL array controller",
150 &ida_v3_access, 0 },
151 { 0x40320E11, "Compaq Smart Array 3200 controller",
152 &ida_v3_access, 0 },
153 { 0x40330E11, "Compaq Smart Array 3100ES controller",
154 &ida_v3_access, 0 },
155 { 0x40340E11, "Compaq Smart Array 221 controller",
156 &ida_v3_access, 0 },
157
158 { 0x40400E11, "Compaq Integrated Array controller",
159 &ida_v4_access, IDA_FIRMWARE },
160 { 0x40480E11, "Compaq RAID LC2 controller",
161 &ida_v4_access, IDA_FIRMWARE },
162 { 0x40500E11, "Compaq Smart Array 4200 controller",
163 &ida_v4_access, 0 },
164 { 0x40510E11, "Compaq Smart Array 4250ES controller",
165 &ida_v4_access, 0 },
166 { 0x40580E11, "Compaq Smart Array 431 controller",
167 &ida_v4_access, 0 },
168
169 { 0, "", 0, 0 },
170 };
171
172 static int ida_pci_probe(device_t dev);
173 static int ida_pci_attach(device_t dev);
174
175 static device_method_t ida_pci_methods[] = {
176 DEVMETHOD(device_probe, ida_pci_probe),
177 DEVMETHOD(device_attach, ida_pci_attach),
178 DEVMETHOD(device_detach, ida_detach),
179
180 DEVMETHOD(bus_print_child, bus_generic_print_child),
181
182 DEVMETHOD_END
183 };
184
185 static driver_t ida_pci_driver = {
186 "ida",
187 ida_pci_methods,
188 sizeof(struct ida_softc)
189 };
190
191 static devclass_t ida_devclass;
192
193 static struct ida_board *
ida_pci_match(device_t dev)194 ida_pci_match(device_t dev)
195 {
196 int i;
197 u_int32_t id, sub_id;
198
199 id = pci_get_devid(dev);
200 sub_id = pci_get_subdevice(dev) << 16 | pci_get_subvendor(dev);
201
202 if (id == IDA_DEVICEID_SMART ||
203 id == IDA_DEVICEID_DEC_SMART ||
204 id == IDA_DEVICEID_NCR_53C1510) {
205 for (i = 0; board_id[i].board; i++)
206 if (board_id[i].board == sub_id)
207 return (&board_id[i]);
208 }
209 return (NULL);
210 }
211
212 static int
ida_pci_probe(device_t dev)213 ida_pci_probe(device_t dev)
214 {
215 struct ida_board *board = ida_pci_match(dev);
216
217 if (board != NULL) {
218 device_set_desc(dev, board->desc);
219 return (0);
220 }
221 return (ENXIO);
222 }
223
224 static int
ida_pci_attach(device_t dev)225 ida_pci_attach(device_t dev)
226 {
227 struct ida_board *board = ida_pci_match(dev);
228 u_int32_t id = pci_get_devid(dev);
229 struct ida_softc *ida;
230 u_int command;
231 int error, rid;
232
233 command = pci_read_config(dev, PCIR_COMMAND, 1);
234
235 /*
236 * it appears that this board only does MEMIO access.
237 */
238 if ((command & PCIM_CMD_MEMEN) == 0) {
239 device_printf(dev, "Only memory mapped I/O is supported\n");
240 return (ENXIO);
241 }
242
243 ida = (struct ida_softc *)device_get_softc(dev);
244 ida->dev = dev;
245 ida->cmd = *board->accessor;
246 ida->flags = board->flags;
247
248 ida->regs_res_type = SYS_RES_MEMORY;
249 ida->regs_res_id = IDA_PCI_MEMADDR;
250 if (id == IDA_DEVICEID_DEC_SMART)
251 ida->regs_res_id = PCIR_MAPS;
252
253 ida->regs = bus_alloc_resource(dev, ida->regs_res_type,
254 &ida->regs_res_id, 0, ~0, 1, RF_ACTIVE);
255 if (ida->regs == NULL) {
256 device_printf(dev, "can't allocate memory resources\n");
257 return (ENOMEM);
258 }
259
260 error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1,
261 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
262 /*highaddr*/BUS_SPACE_MAXADDR,
263 /*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG,
264 /*maxsegsize*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/BUS_DMA_ALLOCNOW,
265 &ida->parent_dmat);
266 if (error != 0) {
267 device_printf(dev, "can't allocate DMA tag\n");
268 ida_free(ida);
269 return (ENOMEM);
270 }
271
272 rid = 0;
273 ida->irq_res_type = SYS_RES_IRQ;
274 ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid,
275 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
276 if (ida->irq == NULL) {
277 ida_free(ida);
278 return (ENOMEM);
279 }
280 error = bus_setup_intr(dev, ida->irq, 0,
281 ida_intr, ida, &ida->ih, NULL);
282 if (error) {
283 device_printf(dev, "can't setup interrupt\n");
284 ida_free(ida);
285 return (ENOMEM);
286 }
287
288 error = ida_init(ida);
289 if (error) {
290 ida_free(ida);
291 return (error);
292 }
293 ida_attach(ida);
294 ida->flags |= IDA_ATTACHED;
295
296 return (0);
297 }
298
299 DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, NULL, NULL);
300