ida_pci.c revision 166901 
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
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/dev/ida/ida_pci.c 166901 2007-02-23 12:19:07Z piso $");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/kernel.h>
33#include <sys/module.h>
34
35#include <sys/bio.h>
36#include <sys/bus.h>
37#include <sys/conf.h>
38
39#include <machine/bus.h>
40#include <machine/resource.h>
41#include <sys/rman.h>
42
43#include <dev/pci/pcireg.h>
44#include <dev/pci/pcivar.h>
45
46#include <geom/geom_disk.h>
47
48#include <dev/ida/idavar.h>
49#include <dev/ida/idareg.h>
50
51#define	IDA_PCI_MAX_DMA_ADDR	0xFFFFFFFF
52#define	IDA_PCI_MAX_DMA_COUNT	0xFFFFFFFF
53
54#define	IDA_PCI_MEMADDR		PCIR_BAR(1)		/* Mem I/O Address */
55
56#define	IDA_DEVICEID_SMART		0xAE100E11
57#define	IDA_DEVICEID_DEC_SMART		0x00461011
58#define	IDA_DEVICEID_NCR_53C1510	0x00101000
59
60static int
61ida_v3_fifo_full(struct ida_softc *ida)
62{
63	return (ida_inl(ida, R_CMD_FIFO) == 0);
64}
65
66static void
67ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb)
68{
69	ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr);
70}
71
72static bus_addr_t
73ida_v3_done(struct ida_softc *ida)
74{
75	bus_addr_t completed;
76
77	completed = ida_inl(ida, R_DONE_FIFO);
78	if (completed == -1) {
79		return (0);			/* fifo is empty */
80	}
81	return (completed);
82}
83
84static int
85ida_v3_int_pending(struct ida_softc *ida)
86{
87	return (ida_inl(ida, R_INT_PENDING));
88}
89
90static void
91ida_v3_int_enable(struct ida_softc *ida, int enable)
92{
93	if (enable)
94		ida->flags |= IDA_INTERRUPTS;
95	else
96		ida->flags &= ~IDA_INTERRUPTS;
97	ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE);
98}
99
100static int
101ida_v4_fifo_full(struct ida_softc *ida)
102{
103	return (ida_inl(ida, R_42XX_REQUEST) != 0);
104}
105
106static void
107ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb)
108{
109	ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr);
110}
111
112static bus_addr_t
113ida_v4_done(struct ida_softc *ida)
114{
115	bus_addr_t completed;
116
117	completed = ida_inl(ida, R_42XX_REPLY);
118	if (completed == -1)
119		return (0);			/* fifo is empty */
120	ida_outl(ida, R_42XX_REPLY, 0);		/* confirm read */
121	return (completed);
122}
123
124static int
125ida_v4_int_pending(struct ida_softc *ida)
126{
127	return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING);
128}
129
130static void
131ida_v4_int_enable(struct ida_softc *ida, int enable)
132{
133	if (enable)
134		ida->flags |= IDA_INTERRUPTS;
135	else
136		ida->flags &= ~IDA_INTERRUPTS;
137	ida_outl(ida, R_42XX_INT_MASK,
138	    enable ? INT_ENABLE_42XX : INT_DISABLE_42XX);
139}
140
141static struct ida_access ida_v3_access = {
142	ida_v3_fifo_full,
143	ida_v3_submit,
144	ida_v3_done,
145	ida_v3_int_pending,
146	ida_v3_int_enable,
147};
148
149static struct ida_access ida_v4_access = {
150	ida_v4_fifo_full,
151	ida_v4_submit,
152	ida_v4_done,
153	ida_v4_int_pending,
154	ida_v4_int_enable,
155};
156
157static struct ida_board board_id[] = {
158	{ 0x40300E11, "Compaq SMART-2/P array controller",
159	    &ida_v3_access, 0 },
160	{ 0x40310E11, "Compaq SMART-2SL array controller",
161	    &ida_v3_access, 0 },
162	{ 0x40320E11, "Compaq Smart Array 3200 controller",
163	    &ida_v3_access, 0 },
164	{ 0x40330E11, "Compaq Smart Array 3100ES controller",
165	    &ida_v3_access, 0 },
166	{ 0x40340E11, "Compaq Smart Array 221 controller",
167	    &ida_v3_access, 0 },
168
169	{ 0x40400E11, "Compaq Integrated Array controller",
170	    &ida_v4_access, IDA_FIRMWARE },
171	{ 0x40480E11, "Compaq RAID LC2 controller",
172	    &ida_v4_access, IDA_FIRMWARE },
173	{ 0x40500E11, "Compaq Smart Array 4200 controller",
174	    &ida_v4_access, 0 },
175	{ 0x40510E11, "Compaq Smart Array 4250ES controller",
176	    &ida_v4_access, 0 },
177	{ 0x40580E11, "Compaq Smart Array 431 controller",
178	    &ida_v4_access, 0 },
179
180	{ 0, "", 0, 0 },
181};
182
183static int ida_pci_probe(device_t dev);
184static int ida_pci_attach(device_t dev);
185
186static device_method_t ida_pci_methods[] = {
187	DEVMETHOD(device_probe,		ida_pci_probe),
188	DEVMETHOD(device_attach,	ida_pci_attach),
189	DEVMETHOD(device_detach,	ida_detach),
190
191	DEVMETHOD(bus_print_child,	bus_generic_print_child),
192
193	{ 0, 0 }
194};
195
196static driver_t ida_pci_driver = {
197	"ida",
198	ida_pci_methods,
199	sizeof(struct ida_softc)
200};
201
202static devclass_t ida_devclass;
203
204static struct ida_board *
205ida_pci_match(device_t dev)
206{
207	int i;
208	u_int32_t id, sub_id;
209
210	id = pci_get_devid(dev);
211	sub_id = pci_get_subdevice(dev) << 16 | pci_get_subvendor(dev);
212
213	if (id == IDA_DEVICEID_SMART ||
214	    id == IDA_DEVICEID_DEC_SMART ||
215	    id == IDA_DEVICEID_NCR_53C1510) {
216		for (i = 0; board_id[i].board; i++)
217			if (board_id[i].board == sub_id)
218				return (&board_id[i]);
219	}
220	return (NULL);
221}
222
223static int
224ida_pci_probe(device_t dev)
225{
226	struct ida_board *board = ida_pci_match(dev);
227
228	if (board != NULL) {
229		device_set_desc(dev, board->desc);
230		return (BUS_PROBE_DEFAULT);
231	}
232	return (ENXIO);
233}
234
235static int
236ida_pci_attach(device_t dev)
237{
238	struct ida_board *board = ida_pci_match(dev);
239	u_int32_t id = pci_get_devid(dev);
240	struct ida_softc *ida;
241	u_int command;
242	int error, rid;
243
244	command = pci_read_config(dev, PCIR_COMMAND, 1);
245
246	/*
247	 * it appears that this board only does MEMIO access.
248	 */
249	if ((command & PCIM_CMD_MEMEN) == 0) {
250	        device_printf(dev, "Only memory mapped I/O is supported\n");
251		return (ENXIO);
252	}
253
254	ida = (struct ida_softc *)device_get_softc(dev);
255	ida->dev = dev;
256	ida->cmd = *board->accessor;
257	ida->flags = board->flags;
258
259	ida->regs_res_type = SYS_RES_MEMORY;
260	ida->regs_res_id = IDA_PCI_MEMADDR;
261	if (id == IDA_DEVICEID_DEC_SMART)
262		ida->regs_res_id = PCIR_BAR(0);
263
264	ida->regs = bus_alloc_resource_any(dev, ida->regs_res_type,
265	    &ida->regs_res_id, RF_ACTIVE);
266	if (ida->regs == NULL) {
267		device_printf(dev, "can't allocate memory resources\n");
268		return (ENOMEM);
269	}
270
271	error = bus_dma_tag_create(
272		/* parent	*/ NULL,
273		/* alignment	*/ 1,
274		/* boundary	*/ 0,
275		/* lowaddr	*/ BUS_SPACE_MAXADDR_32BIT,
276		/* highaddr	*/ BUS_SPACE_MAXADDR,
277		/* filter	*/ NULL,
278		/* filterarg	*/ NULL,
279		/* maxsize	*/ MAXBSIZE,
280		/* nsegments	*/ IDA_NSEG,
281		/* maxsegsize	*/ BUS_SPACE_MAXSIZE_32BIT,
282		/* flags	*/ BUS_DMA_ALLOCNOW,
283		/* lockfunc	*/ NULL,
284		/* lockarg	*/ NULL,
285		&ida->parent_dmat);
286	if (error != 0) {
287		device_printf(dev, "can't allocate DMA tag\n");
288		ida_free(ida);
289		return (ENOMEM);
290	}
291
292	rid = 0;
293	ida->irq_res_type = SYS_RES_IRQ;
294	ida->irq = bus_alloc_resource_any(dev, ida->irq_res_type, &rid,
295	    RF_ACTIVE | RF_SHAREABLE);
296	if (ida->irq == NULL) {
297	        ida_free(ida);
298	        return (ENOMEM);
299	}
300	error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO | INTR_ENTROPY,
301	    NULL, ida_intr, ida, &ida->ih);
302	if (error) {
303		device_printf(dev, "can't setup interrupt\n");
304		ida_free(ida);
305		return (ENOMEM);
306	}
307
308	error = ida_init(ida);
309	if (error) {
310	        ida_free(ida);
311	        return (error);
312	}
313	ida_attach(ida);
314	ida->flags |= IDA_ATTACHED;
315
316	return (0);
317}
318
319DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0);
320