xref: /dragonfly/sys/dev/raid/ida/ida_pci.c (revision 030b0c8c)
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