ida_pci.c revision 111979 
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: head/sys/dev/ida/ida_pci.c 111979 2003-03-08 08:01:31Z phk $
27 */
28
29#include <sys/param.h>
30#include <sys/systm.h>
31#include <sys/kernel.h>
32
33#include <sys/bio.h>
34#include <sys/bus.h>
35#include <sys/conf.h>
36#include <sys/disk.h>
37
38#include <machine/bus_memio.h>
39#include <machine/bus_pio.h>
40#include <machine/bus.h>
41#include <machine/resource.h>
42#include <sys/rman.h>
43
44#include <pci/pcireg.h>
45#include <pci/pcivar.h>
46
47#include <dev/ida/idavar.h>
48#include <dev/ida/idareg.h>
49
50#define IDA_PCI_MAX_DMA_ADDR	0xFFFFFFFF
51#define IDA_PCI_MAX_DMA_COUNT	0xFFFFFFFF
52
53#define IDA_PCI_MEMADDR		(PCIR_MAPS + 4)		/* Mem I/O Address */
54
55#define IDA_DEVICEID_SMART		0xAE100E11
56#define IDA_DEVICEID_DEC_SMART		0x00461011
57#define IDA_DEVICEID_NCR_53C1510	0x00101000
58
59static int
60ida_v3_fifo_full(struct ida_softc *ida)
61{
62	return (ida_inl(ida, R_CMD_FIFO) == 0);
63}
64
65static void
66ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb)
67{
68	ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr);
69}
70
71static bus_addr_t
72ida_v3_done(struct ida_softc *ida)
73{
74	return (ida_inl(ida, R_DONE_FIFO));
75}
76
77static int
78ida_v3_int_pending(struct ida_softc *ida)
79{
80	return (ida_inl(ida, R_INT_PENDING));
81}
82
83static void
84ida_v3_int_enable(struct ida_softc *ida, int enable)
85{
86	if (enable)
87		ida->flags |= IDA_INTERRUPTS;
88	else
89		ida->flags &= ~IDA_INTERRUPTS;
90	ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE);
91}
92
93static int
94ida_v4_fifo_full(struct ida_softc *ida)
95{
96	return (ida_inl(ida, R_42XX_REQUEST) != 0);
97}
98
99static void
100ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb)
101{
102	ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr);
103}
104
105static bus_addr_t
106ida_v4_done(struct ida_softc *ida)
107{
108	bus_addr_t completed;
109
110	completed = ida_inl(ida, R_42XX_REPLY);
111	if (completed == -1)
112		return (0);			/* fifo is empty */
113	ida_outl(ida, R_42XX_REPLY, 0);		/* confirm read */
114	return (completed);
115}
116
117static int
118ida_v4_int_pending(struct ida_softc *ida)
119{
120	return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING);
121}
122
123static void
124ida_v4_int_enable(struct ida_softc *ida, int enable)
125{
126	if (enable)
127		ida->flags |= IDA_INTERRUPTS;
128	else
129		ida->flags &= ~IDA_INTERRUPTS;
130	ida_outl(ida, R_42XX_INT_MASK,
131	    enable ? INT_ENABLE_42XX : INT_DISABLE_42XX);
132}
133
134static struct ida_access ida_v3_access = {
135	ida_v3_fifo_full,
136	ida_v3_submit,
137	ida_v3_done,
138	ida_v3_int_pending,
139	ida_v3_int_enable,
140};
141
142static struct ida_access ida_v4_access = {
143	ida_v4_fifo_full,
144	ida_v4_submit,
145	ida_v4_done,
146	ida_v4_int_pending,
147	ida_v4_int_enable,
148};
149
150static struct ida_board board_id[] = {
151	{ 0x40300E11, "Compaq SMART-2/P array controller",
152	    &ida_v3_access, 0 },
153	{ 0x40310E11, "Compaq SMART-2SL array controller",
154	    &ida_v3_access, 0 },
155	{ 0x40320E11, "Compaq Smart Array 3200 controller",
156	    &ida_v3_access, 0 },
157	{ 0x40330E11, "Compaq Smart Array 3100ES controller",
158	    &ida_v3_access, 0 },
159	{ 0x40340E11, "Compaq Smart Array 221 controller",
160	    &ida_v3_access, 0 },
161
162	{ 0x40400E11, "Compaq Integrated Array controller",
163	    &ida_v4_access, IDA_FIRMWARE },
164	{ 0x40480E11, "Compaq RAID LC2 controller",
165	    &ida_v4_access, IDA_FIRMWARE },
166	{ 0x40500E11, "Compaq Smart Array 4200 controller",
167	    &ida_v4_access, 0 },
168	{ 0x40510E11, "Compaq Smart Array 4250ES controller",
169	    &ida_v4_access, 0 },
170	{ 0x40580E11, "Compaq Smart Array 431 controller",
171	    &ida_v4_access, 0 },
172
173	{ 0, "", 0, 0 },
174};
175
176static int ida_pci_probe(device_t dev);
177static int ida_pci_attach(device_t dev);
178
179static device_method_t ida_pci_methods[] = {
180	DEVMETHOD(device_probe,		ida_pci_probe),
181	DEVMETHOD(device_attach,	ida_pci_attach),
182	DEVMETHOD(device_detach,	ida_detach),
183
184	DEVMETHOD(bus_print_child,	bus_generic_print_child),
185
186	{ 0, 0 }
187};
188
189static driver_t ida_pci_driver = {
190	"ida",
191	ida_pci_methods,
192	sizeof(struct ida_softc)
193};
194
195static devclass_t ida_devclass;
196
197static struct ida_board *
198ida_pci_match(device_t dev)
199{
200	int i;
201	u_int32_t id, sub_id;
202
203	id = pci_get_devid(dev);
204	sub_id = pci_get_subdevice(dev) << 16 | pci_get_subvendor(dev);
205
206	if (id == IDA_DEVICEID_SMART ||
207	    id == IDA_DEVICEID_DEC_SMART ||
208	    id == IDA_DEVICEID_NCR_53C1510) {
209		for (i = 0; board_id[i].board; i++)
210			if (board_id[i].board == sub_id)
211				return (&board_id[i]);
212	}
213	return (NULL);
214}
215
216static int
217ida_pci_probe(device_t dev)
218{
219	struct ida_board *board = ida_pci_match(dev);
220
221	if (board != NULL) {
222		device_set_desc(dev, board->desc);
223		return (0);
224	}
225	return (ENXIO);
226}
227
228static int
229ida_pci_attach(device_t dev)
230{
231	struct ida_board *board = ida_pci_match(dev);
232	u_int32_t id = pci_get_devid(dev);
233	struct ida_softc *ida;
234	u_int command;
235	int error, rid;
236
237	command = pci_read_config(dev, PCIR_COMMAND, 1);
238
239	/*
240	 * it appears that this board only does MEMIO access.
241	 */
242	if ((command & PCIM_CMD_MEMEN) == 0) {
243                device_printf(dev, "Only memory mapped I/O is supported\n");
244		return (ENXIO);
245	}
246
247	ida = (struct ida_softc *)device_get_softc(dev);
248	ida->dev = dev;
249	ida->cmd = *board->accessor;
250	ida->flags = board->flags;
251
252	ida->regs_res_type = SYS_RES_MEMORY;
253	ida->regs_res_id = IDA_PCI_MEMADDR;
254	if (id == IDA_DEVICEID_DEC_SMART)
255		ida->regs_res_id = PCIR_MAPS;
256
257	ida->regs = bus_alloc_resource(dev, ida->regs_res_type,
258	    &ida->regs_res_id, 0, ~0, 1, RF_ACTIVE);
259	if (ida->regs == NULL) {
260		device_printf(dev, "can't allocate memory resources\n");
261		return (ENOMEM);
262	}
263
264	error = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1,
265	    /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
266	    /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
267	    /*maxsize*/MAXBSIZE, /*nsegments*/IDA_NSEG,
268	    /*maxsegsize*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/BUS_DMA_ALLOCNOW,
269	    &ida->parent_dmat);
270	if (error != 0) {
271		device_printf(dev, "can't allocate DMA tag\n");
272		ida_free(ida);
273		return (ENOMEM);
274	}
275
276	rid = 0;
277        ida->irq_res_type = SYS_RES_IRQ;
278	ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid,
279	    0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
280        if (ida->irq == NULL) {
281                ida_free(ida);
282                return (ENOMEM);
283        }
284	error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO | INTR_ENTROPY,
285	    ida_intr, ida, &ida->ih);
286	if (error) {
287		device_printf(dev, "can't setup interrupt\n");
288		ida_free(ida);
289		return (ENOMEM);
290	}
291
292	error = ida_init(ida);
293	if (error) {
294                ida_free(ida);
295                return (error);
296        }
297	ida_attach(ida);
298	ida->flags |= IDA_ATTACHED;
299
300	return (0);
301}
302
303DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0);
304