ida_eisa.c revision 112946 
1/*
2 * Copyright (c) 2000 Jonathan Lemon
3 * Copyright (c) 1999 by Matthew N. Dodd <winter@jurai.net>
4 * All Rights Reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions, and the following disclaimer,
11 *    without modification, immediately at the beginning of the file.
12 * 2. The name of the author may not be used to endorse or promote products
13 *    derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: head/sys/dev/ida/ida_eisa.c 112946 2003-04-01 15:06:26Z phk $
28 */
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/kernel.h>
33#include <sys/bus.h>
34
35#include <sys/bio.h>
36#include <sys/conf.h>
37
38#include <machine/bus_pio.h>
39#include <machine/bus.h>
40#include <machine/resource.h>
41#include <sys/rman.h>
42
43#include <geom/geom_disk.h>
44
45#include <dev/ida/idavar.h>
46#include <dev/ida/idareg.h>
47
48#include <dev/eisa/eisaconf.h>
49
50#define IDA_EISA_IOPORT_START	0x0c88
51#define IDA_EISA_IOPORT_LEN	0x0017
52
53#define IDA_EISA_IRQ_REG	0x0cc0
54#define IDA_EISA_IRQ_MASK	0xf0
55#define IDA_EISA_IRQ_15		0x80
56#define IDA_EISA_IRQ_14		0x40
57#define IDA_EISA_IRQ_11		0x10
58#define IDA_EISA_IRQ_10		0x20
59
60static int
61ida_v1_fifo_full(struct ida_softc *ida)
62{
63	u_int8_t status;
64
65	status = ida_inb(ida, R_EISA_SYSTEM_DOORBELL);
66	return ((status & EISA_CHANNEL_CLEAR) == 0);
67}
68
69static void
70ida_v1_submit(struct ida_softc *ida, struct ida_qcb *qcb)
71{
72	u_int16_t size;
73
74	/*
75	 * On these cards, this location is actually for control flags.
76	 * Set them to zero and pass in structure size via an I/O port.
77	 */
78	size = qcb->hwqcb->hdr.size << 2;
79	qcb->hwqcb->hdr.size = 0;
80
81	ida_outb(ida, R_EISA_SYSTEM_DOORBELL, EISA_CHANNEL_CLEAR);
82	ida_outl(ida, R_EISA_LIST_ADDR, qcb->hwqcb_busaddr);
83	ida_outw(ida, R_EISA_LIST_LEN, size);
84	ida_outb(ida, R_EISA_LOCAL_DOORBELL, EISA_CHANNEL_BUSY);
85}
86
87static bus_addr_t
88ida_v1_done(struct ida_softc *ida)
89{
90	struct ida_hardware_qcb *hwqcb;
91	bus_addr_t completed;
92	u_int8_t status;
93
94	if ((ida_inb(ida, R_EISA_SYSTEM_DOORBELL) & EISA_CHANNEL_BUSY) == 0)
95		return (0);
96
97	ida_outb(ida, R_EISA_SYSTEM_DOORBELL, EISA_CHANNEL_BUSY);
98	completed = ida_inl(ida, R_EISA_COMPLETE_ADDR);
99	status = ida_inb(ida, R_EISA_LIST_STATUS);
100	ida_outb(ida, R_EISA_LOCAL_DOORBELL, EISA_CHANNEL_CLEAR);
101
102	if (completed != 0) {
103        	hwqcb = (struct ida_hardware_qcb *)
104		    ((bus_addr_t)ida->hwqcbs +
105		    ((completed & ~3) - ida->hwqcb_busaddr));
106		hwqcb->req.error = status;
107	}
108
109	return (completed);
110}
111
112static int
113ida_v1_int_pending(struct ida_softc *ida)
114{
115	return (ida_inb(ida, R_EISA_SYSTEM_DOORBELL) & EISA_CHANNEL_BUSY);
116}
117
118static void
119ida_v1_int_enable(struct ida_softc *ida, int enable)
120{
121	if (enable) {
122		ida_outb(ida, R_EISA_SYSTEM_DOORBELL, ~EISA_CHANNEL_CLEAR);
123		ida_outb(ida, R_EISA_LOCAL_DOORBELL, EISA_CHANNEL_BUSY);
124		ida_outb(ida, R_EISA_INT_MASK, INT_ENABLE);
125		ida_outb(ida, R_EISA_SYSTEM_MASK, INT_ENABLE);
126		ida->flags |= IDA_INTERRUPTS;
127	} else {
128		ida_outb(ida, R_EISA_SYSTEM_MASK, INT_DISABLE);
129		ida->flags &= ~IDA_INTERRUPTS;
130	}
131}
132
133static int
134ida_v2_fifo_full(struct ida_softc *ida)
135{
136	return (ida_inl(ida, R_CMD_FIFO) == 0);
137}
138
139static void
140ida_v2_submit(struct ida_softc *ida, struct ida_qcb *qcb)
141{
142	ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr);
143}
144
145static bus_addr_t
146ida_v2_done(struct ida_softc *ida)
147{
148	return (ida_inl(ida, R_DONE_FIFO));
149}
150
151static int
152ida_v2_int_pending(struct ida_softc *ida)
153{
154	return (ida_inl(ida, R_INT_PENDING));
155}
156
157static void
158ida_v2_int_enable(struct ida_softc *ida, int enable)
159{
160	if (enable)
161		ida->flags |= IDA_INTERRUPTS;
162	else
163		ida->flags &= ~IDA_INTERRUPTS;
164	ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE);
165}
166
167static struct ida_access ida_v1_access = {
168	ida_v1_fifo_full,
169	ida_v1_submit,
170	ida_v1_done,
171	ida_v1_int_pending,
172	ida_v1_int_enable,
173};
174
175static struct ida_access ida_v2_access = {
176	ida_v2_fifo_full,
177	ida_v2_submit,
178	ida_v2_done,
179	ida_v2_int_pending,
180	ida_v2_int_enable,
181};
182
183static struct ida_board board_id[] = {
184	{ 0x0e114001, "Compaq IDA controller",
185	    &ida_v1_access, 0 },
186	{ 0x0e114002, "Compaq IDA-2 controller",
187	    &ida_v1_access, 0 },
188	{ 0x0e114010, "Compaq IAES controller",
189	    &ida_v1_access, 0 },
190	{ 0x0e114020, "Compaq SMART array controller",
191	    &ida_v1_access, 0 },
192	{ 0x0e114030, "Compaq SMART-2/E array controller",
193	    &ida_v2_access, 0 },
194
195	{ 0, "", 0, 0 }
196};
197
198static struct 	ida_board *ida_eisa_match(eisa_id_t);
199static int	ida_eisa_probe(device_t);
200static int	ida_eisa_attach(device_t);
201
202static device_method_t ida_eisa_methods[] = {
203	DEVMETHOD(device_probe,		ida_eisa_probe),
204	DEVMETHOD(device_attach,	ida_eisa_attach),
205	DEVMETHOD(device_detach,	ida_detach),
206
207	{ 0, 0 }
208};
209
210static driver_t ida_eisa_driver = {
211	"ida",
212	ida_eisa_methods,
213	sizeof(struct ida_softc)
214};
215
216static devclass_t ida_devclass;
217
218static struct ida_board *
219ida_eisa_match(eisa_id_t id)
220{
221	int i;
222
223	for (i = 0; board_id[i].board; i++)
224		if (board_id[i].board == id)
225			return (&board_id[i]);
226	return (NULL);
227}
228
229static int
230ida_eisa_probe(device_t dev)
231{
232	struct ida_board	*board;
233	u_int32_t		io_base;
234	u_int			irq = 0;
235
236	board = ida_eisa_match(eisa_get_id(dev));
237	if (board == NULL)
238		return (ENXIO);
239	device_set_desc(dev, board->desc);
240
241	io_base = (eisa_get_slot(dev) * EISA_SLOT_SIZE);
242
243	switch (IDA_EISA_IRQ_MASK & (inb(IDA_EISA_IRQ_REG + io_base))) {
244	case IDA_EISA_IRQ_15:
245		irq = 15;
246		break;
247	case IDA_EISA_IRQ_14:
248		irq = 14;
249		break;
250	case IDA_EISA_IRQ_11:
251		irq = 11;
252		break;
253	case IDA_EISA_IRQ_10:
254		irq = 10;
255		break;
256	default:
257		device_printf(dev, "slot %d, illegal irq setting.\n",
258		    eisa_get_slot(dev));
259		return (ENXIO);
260	}
261
262	eisa_add_iospace(dev, (io_base + IDA_EISA_IOPORT_START),
263			 IDA_EISA_IOPORT_LEN, RESVADDR_NONE);
264
265        eisa_add_intr(dev, irq, EISA_TRIGGER_LEVEL);		/* XXX ??? */
266
267	return (0);
268}
269
270static int
271ida_eisa_attach(device_t dev)
272{
273	struct ida_softc	*ida;
274	struct ida_board	*board;
275	int			error;
276	int			rid;
277
278	ida = device_get_softc(dev);
279	ida->dev = dev;
280
281	board = ida_eisa_match(eisa_get_id(dev));
282	ida->cmd = *board->accessor;
283	ida->flags = board->flags;
284
285	ida->regs_res_type = SYS_RES_IOPORT;
286	ida->regs_res_id = 0;
287	ida->regs = bus_alloc_resource(dev, ida->regs_res_type,
288	    &ida->regs_res_id, 0, ~0, 1, RF_ACTIVE);
289	if (ida->regs == NULL) {
290		device_printf(dev, "can't allocate register resources\n");
291		return (ENOMEM);
292	}
293
294	error = bus_dma_tag_create(
295		/* parent	*/	NULL,
296		/* alignment	*/	0,
297		/* boundary	*/	0,
298		/* lowaddr	*/	BUS_SPACE_MAXADDR_32BIT,
299		/* highaddr	*/	BUS_SPACE_MAXADDR,
300		/* filter	*/	NULL,
301		/* filterarg	*/	NULL,
302		/* maxsize	*/	MAXBSIZE,
303		/* nsegments	*/	IDA_NSEG,
304		/* maxsegsize	*/	BUS_SPACE_MAXSIZE_32BIT,
305		/* flags	*/	BUS_DMA_ALLOCNOW,
306		&ida->parent_dmat);
307
308	if (error != 0) {
309		device_printf(dev, "can't allocate DMA tag\n");
310		ida_free(ida);
311		return (ENOMEM);
312	}
313
314	rid = 0;
315	ida->irq_res_type = SYS_RES_IRQ;
316	ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid,
317	    0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
318	if (ida->irq == NULL) {
319		ida_free(ida);
320		return (ENOMEM);
321	}
322
323	error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO | INTR_ENTROPY,
324	    ida_intr, ida, &ida->ih);
325	if (error) {
326		device_printf(dev, "can't setup interrupt\n");
327		ida_free(ida);
328		return (ENOMEM);
329	}
330
331	error = ida_init(ida);
332	if (error) {
333		ida_free(ida);
334		return (error);
335	}
336
337	ida_attach(ida);
338	ida->flags |= IDA_ATTACHED;
339
340	return (0);
341}
342
343DRIVER_MODULE(ida, eisa, ida_eisa_driver, ida_devclass, 0, 0);
344