ida_pci.c revision 143160 
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 143160 2005-03-05 18:17:35Z imp $");
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_memio.h>
40#include <machine/bus_pio.h>
41#include <machine/bus.h>
42#include <machine/resource.h>
43#include <sys/rman.h>
44
45#include <dev/pci/pcireg.h>
46#include <dev/pci/pcivar.h>
47
48#include <geom/geom_disk.h>
49
50#include <dev/ida/idavar.h>
51#include <dev/ida/idareg.h>
52
53#define	IDA_PCI_MAX_DMA_ADDR	0xFFFFFFFF
54#define	IDA_PCI_MAX_DMA_COUNT	0xFFFFFFFF
55
56#define	IDA_PCI_MEMADDR		PCIR_BAR(1)		/* Mem I/O Address */
57
58#define	IDA_DEVICEID_SMART		0xAE100E11
59#define	IDA_DEVICEID_DEC_SMART		0x00461011
60#define	IDA_DEVICEID_NCR_53C1510	0x00101000
61
62static int
63ida_v3_fifo_full(struct ida_softc *ida)
64{
65	return (ida_inl(ida, R_CMD_FIFO) == 0);
66}
67
68static void
69ida_v3_submit(struct ida_softc *ida, struct ida_qcb *qcb)
70{
71	ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr);
72}
73
74static bus_addr_t
75ida_v3_done(struct ida_softc *ida)
76{
77	bus_addr_t completed;
78
79	completed = ida_inl(ida, R_DONE_FIFO);
80	if (completed == -1) {
81		return (0);			/* fifo is empty */
82	}
83	return (completed);
84}
85
86static int
87ida_v3_int_pending(struct ida_softc *ida)
88{
89	return (ida_inl(ida, R_INT_PENDING));
90}
91
92static void
93ida_v3_int_enable(struct ida_softc *ida, int enable)
94{
95	if (enable)
96		ida->flags |= IDA_INTERRUPTS;
97	else
98		ida->flags &= ~IDA_INTERRUPTS;
99	ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE);
100}
101
102static int
103ida_v4_fifo_full(struct ida_softc *ida)
104{
105	return (ida_inl(ida, R_42XX_REQUEST) != 0);
106}
107
108static void
109ida_v4_submit(struct ida_softc *ida, struct ida_qcb *qcb)
110{
111	ida_outl(ida, R_42XX_REQUEST, qcb->hwqcb_busaddr);
112}
113
114static bus_addr_t
115ida_v4_done(struct ida_softc *ida)
116{
117	bus_addr_t completed;
118
119	completed = ida_inl(ida, R_42XX_REPLY);
120	if (completed == -1)
121		return (0);			/* fifo is empty */
122	ida_outl(ida, R_42XX_REPLY, 0);		/* confirm read */
123	return (completed);
124}
125
126static int
127ida_v4_int_pending(struct ida_softc *ida)
128{
129	return (ida_inl(ida, R_42XX_STATUS) & STATUS_42XX_INT_PENDING);
130}
131
132static void
133ida_v4_int_enable(struct ida_softc *ida, int enable)
134{
135	if (enable)
136		ida->flags |= IDA_INTERRUPTS;
137	else
138		ida->flags &= ~IDA_INTERRUPTS;
139	ida_outl(ida, R_42XX_INT_MASK,
140	    enable ? INT_ENABLE_42XX : INT_DISABLE_42XX);
141}
142
143static struct ida_access ida_v3_access = {
144	ida_v3_fifo_full,
145	ida_v3_submit,
146	ida_v3_done,
147	ida_v3_int_pending,
148	ida_v3_int_enable,
149};
150
151static struct ida_access ida_v4_access = {
152	ida_v4_fifo_full,
153	ida_v4_submit,
154	ida_v4_done,
155	ida_v4_int_pending,
156	ida_v4_int_enable,
157};
158
159static struct ida_board board_id[] = {
160	{ 0x40300E11, "Compaq SMART-2/P array controller",
161	    &ida_v3_access, 0 },
162	{ 0x40310E11, "Compaq SMART-2SL array controller",
163	    &ida_v3_access, 0 },
164	{ 0x40320E11, "Compaq Smart Array 3200 controller",
165	    &ida_v3_access, 0 },
166	{ 0x40330E11, "Compaq Smart Array 3100ES controller",
167	    &ida_v3_access, 0 },
168	{ 0x40340E11, "Compaq Smart Array 221 controller",
169	    &ida_v3_access, 0 },
170
171	{ 0x40400E11, "Compaq Integrated Array controller",
172	    &ida_v4_access, IDA_FIRMWARE },
173	{ 0x40480E11, "Compaq RAID LC2 controller",
174	    &ida_v4_access, IDA_FIRMWARE },
175	{ 0x40500E11, "Compaq Smart Array 4200 controller",
176	    &ida_v4_access, 0 },
177	{ 0x40510E11, "Compaq Smart Array 4250ES controller",
178	    &ida_v4_access, 0 },
179	{ 0x40580E11, "Compaq Smart Array 431 controller",
180	    &ida_v4_access, 0 },
181
182	{ 0, "", 0, 0 },
183};
184
185static int ida_pci_probe(device_t dev);
186static int ida_pci_attach(device_t dev);
187
188static device_method_t ida_pci_methods[] = {
189	DEVMETHOD(device_probe,		ida_pci_probe),
190	DEVMETHOD(device_attach,	ida_pci_attach),
191	DEVMETHOD(device_detach,	ida_detach),
192
193	DEVMETHOD(bus_print_child,	bus_generic_print_child),
194
195	{ 0, 0 }
196};
197
198static driver_t ida_pci_driver = {
199	"ida",
200	ida_pci_methods,
201	sizeof(struct ida_softc)
202};
203
204static devclass_t ida_devclass;
205
206static struct ida_board *
207ida_pci_match(device_t dev)
208{
209	int i;
210	u_int32_t id, sub_id;
211
212	id = pci_get_devid(dev);
213	sub_id = pci_get_subdevice(dev) << 16 | pci_get_subvendor(dev);
214
215	if (id == IDA_DEVICEID_SMART ||
216	    id == IDA_DEVICEID_DEC_SMART ||
217	    id == IDA_DEVICEID_NCR_53C1510) {
218		for (i = 0; board_id[i].board; i++)
219			if (board_id[i].board == sub_id)
220				return (&board_id[i]);
221	}
222	return (NULL);
223}
224
225static int
226ida_pci_probe(device_t dev)
227{
228	struct ida_board *board = ida_pci_match(dev);
229
230	if (board != NULL) {
231		device_set_desc(dev, board->desc);
232		return (BUS_PROBE_DEFAULT);
233	}
234	return (ENXIO);
235}
236
237static int
238ida_pci_attach(device_t dev)
239{
240	struct ida_board *board = ida_pci_match(dev);
241	u_int32_t id = pci_get_devid(dev);
242	struct ida_softc *ida;
243	u_int command;
244	int error, rid;
245
246	command = pci_read_config(dev, PCIR_COMMAND, 1);
247
248	/*
249	 * it appears that this board only does MEMIO access.
250	 */
251	if ((command & PCIM_CMD_MEMEN) == 0) {
252                device_printf(dev, "Only memory mapped I/O is supported\n");
253		return (ENXIO);
254	}
255
256	ida = (struct ida_softc *)device_get_softc(dev);
257	ida->dev = dev;
258	ida->cmd = *board->accessor;
259	ida->flags = board->flags;
260
261	ida->regs_res_type = SYS_RES_MEMORY;
262	ida->regs_res_id = IDA_PCI_MEMADDR;
263	if (id == IDA_DEVICEID_DEC_SMART)
264		ida->regs_res_id = PCIR_BAR(0);
265
266	ida->regs = bus_alloc_resource_any(dev, ida->regs_res_type,
267	    &ida->regs_res_id, RF_ACTIVE);
268	if (ida->regs == NULL) {
269		device_printf(dev, "can't allocate memory resources\n");
270		return (ENOMEM);
271	}
272
273	error = bus_dma_tag_create(
274		/* parent	*/ NULL,
275		/* alignment	*/ 1,
276		/* boundary	*/ 0,
277		/* lowaddr	*/ BUS_SPACE_MAXADDR_32BIT,
278		/* highaddr	*/ BUS_SPACE_MAXADDR,
279		/* filter	*/ NULL,
280		/* filterarg	*/ NULL,
281		/* maxsize	*/ MAXBSIZE,
282		/* nsegments	*/ IDA_NSEG,
283		/* maxsegsize	*/ BUS_SPACE_MAXSIZE_32BIT,
284		/* flags	*/ BUS_DMA_ALLOCNOW,
285		/* lockfunc	*/ NULL,
286		/* lockarg	*/ NULL,
287		&ida->parent_dmat);
288	if (error != 0) {
289		device_printf(dev, "can't allocate DMA tag\n");
290		ida_free(ida);
291		return (ENOMEM);
292	}
293
294	rid = 0;
295        ida->irq_res_type = SYS_RES_IRQ;
296	ida->irq = bus_alloc_resource_any(dev, ida->irq_res_type, &rid,
297	    RF_ACTIVE | RF_SHAREABLE);
298        if (ida->irq == NULL) {
299                ida_free(ida);
300                return (ENOMEM);
301        }
302	error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO | INTR_ENTROPY,
303	    ida_intr, ida, &ida->ih);
304	if (error) {
305		device_printf(dev, "can't setup interrupt\n");
306		ida_free(ida);
307		return (ENOMEM);
308	}
309
310	error = ida_init(ida);
311	if (error) {
312                ida_free(ida);
313                return (error);
314        }
315	ida_attach(ida);
316	ida->flags |= IDA_ATTACHED;
317
318	return (0);
319}
320
321DRIVER_MODULE(ida, pci, ida_pci_driver, ida_devclass, 0, 0);
322