ida_eisa.c revision 70845 
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 70845 2001-01-09 14:49:41Z jlemon $
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/devicestat.h>
37#include <sys/disk.h>
38
39#include <machine/bus_pio.h>
40#include <machine/bus.h>
41#include <machine/resource.h>
42#include <sys/rman.h>
43
44#include <dev/ida/idavar.h>
45#include <dev/ida/idareg.h>
46
47#include <dev/eisa/eisaconf.h>
48
49#define IDA_EISA_IOPORT_START	0x0c88
50#define IDA_EISA_IOPORT_LEN	0x0017
51
52#define IDA_EISA_IRQ_REG	0x0cc0
53#define IDA_EISA_IRQ_MASK	0xf0
54#define IDA_EISA_IRQ_15		0x80
55#define IDA_EISA_IRQ_14		0x40
56#define IDA_EISA_IRQ_11		0x10
57#define IDA_EISA_IRQ_10		0x20
58
59static int
60ida_v1_fifo_full(struct ida_softc *ida)
61{
62	u_int8_t status;
63
64	status = ida_inb(ida, R_EISA_SYSTEM_DOORBELL);
65	return ((status & EISA_CHANNEL_CLEAR) == 0);
66}
67
68static void
69ida_v1_submit(struct ida_softc *ida, struct ida_qcb *qcb)
70{
71	u_int16_t size;
72
73	/*
74	 * On these cards, this location is actually for control flags.
75	 * Set them to zero and pass in structure size via an I/O port.
76	 */
77	size = qcb->hwqcb->hdr.size << 2;
78	qcb->hwqcb->hdr.size = 0;
79
80	ida_outb(ida, R_EISA_SYSTEM_DOORBELL, EISA_CHANNEL_CLEAR);
81	ida_outl(ida, R_EISA_LIST_ADDR, qcb->hwqcb_busaddr);
82	ida_outw(ida, R_EISA_LIST_LEN, size);
83	ida_outb(ida, R_EISA_LOCAL_DOORBELL, EISA_CHANNEL_BUSY);
84}
85
86static bus_addr_t
87ida_v1_done(struct ida_softc *ida)
88{
89	struct ida_hardware_qcb *hwqcb;
90	bus_addr_t completed;
91	u_int8_t status;
92
93	if ((ida_inb(ida, R_EISA_SYSTEM_DOORBELL) & EISA_CHANNEL_BUSY) == 0)
94		return (0);
95
96	ida_outb(ida, R_EISA_SYSTEM_DOORBELL, EISA_CHANNEL_BUSY);
97	completed = ida_inl(ida, R_EISA_COMPLETE_ADDR);
98	status = ida_inb(ida, R_EISA_LIST_STATUS);
99	ida_outb(ida, R_EISA_LOCAL_DOORBELL, EISA_CHANNEL_CLEAR);
100
101	if (completed != 0) {
102        	hwqcb = (struct ida_hardware_qcb *)
103		    ((bus_addr_t)ida->hwqcbs +
104		    ((completed & ~3) - ida->hwqcb_busaddr));
105		hwqcb->req.error = status;
106	}
107
108	return (completed);
109}
110
111static int
112ida_v1_int_pending(struct ida_softc *ida)
113{
114	return (ida_inb(ida, R_EISA_SYSTEM_DOORBELL) & EISA_CHANNEL_BUSY);
115}
116
117static void
118ida_v1_int_enable(struct ida_softc *ida, int enable)
119{
120	if (enable) {
121		ida_outb(ida, R_EISA_SYSTEM_DOORBELL, ~EISA_CHANNEL_CLEAR);
122		ida_outb(ida, R_EISA_LOCAL_DOORBELL, EISA_CHANNEL_BUSY);
123		ida_outb(ida, R_EISA_INT_MASK, INT_ENABLE);
124		ida_outb(ida, R_EISA_SYSTEM_MASK, INT_ENABLE);
125	} else {
126		ida_outb(ida, R_EISA_SYSTEM_MASK, INT_DISABLE);
127	}
128}
129
130static int
131ida_v2_fifo_full(struct ida_softc *ida)
132{
133	return (ida_inl(ida, R_CMD_FIFO) == 0);
134}
135
136static void
137ida_v2_submit(struct ida_softc *ida, struct ida_qcb *qcb)
138{
139	ida_outl(ida, R_CMD_FIFO, qcb->hwqcb_busaddr);
140}
141
142static bus_addr_t
143ida_v2_done(struct ida_softc *ida)
144{
145	return (ida_inl(ida, R_DONE_FIFO));
146}
147
148static int
149ida_v2_int_pending(struct ida_softc *ida)
150{
151	return (ida_inl(ida, R_INT_PENDING));
152}
153
154static void
155ida_v2_int_enable(struct ida_softc *ida, int enable)
156{
157	ida_outl(ida, R_INT_MASK, enable ? INT_ENABLE : INT_DISABLE);
158}
159
160static struct ida_access ida_v1_access = {
161	ida_v1_fifo_full,
162	ida_v1_submit,
163	ida_v1_done,
164	ida_v1_int_pending,
165	ida_v1_int_enable,
166};
167
168static struct ida_access ida_v2_access = {
169	ida_v2_fifo_full,
170	ida_v2_submit,
171	ida_v2_done,
172	ida_v2_int_pending,
173	ida_v2_int_enable,
174};
175
176static struct ida_board board_id[] = {
177	{ 0x0e114001, "Compaq IDA controller",
178	    &ida_v1_access, 0 },
179	{ 0x0e114002, "Compaq IDA-2 controller",
180	    &ida_v1_access, 0 },
181	{ 0x0e114010, "Compaq IAES controller",
182	    &ida_v1_access, 0 },
183	{ 0x0e114020, "Compaq SMART array controller",
184	    &ida_v1_access, 0 },
185	{ 0x0e114030, "Compaq SMART-2/E array controller",
186	    &ida_v2_access, 0 },
187
188	{ 0, "", 0, 0 }
189};
190
191static struct 	ida_board *ida_eisa_match(eisa_id_t);
192static int	ida_eisa_probe(device_t);
193static int	ida_eisa_attach(device_t);
194
195static device_method_t ida_eisa_methods[] = {
196	DEVMETHOD(device_probe,		ida_eisa_probe),
197	DEVMETHOD(device_attach,	ida_eisa_attach),
198	DEVMETHOD(device_detach,	ida_detach),
199
200	{ 0, 0 }
201};
202
203static driver_t ida_eisa_driver = {
204	"ida",
205	ida_eisa_methods,
206	sizeof(struct ida_softc)
207};
208
209static devclass_t ida_devclass;
210
211static struct ida_board *
212ida_eisa_match(eisa_id_t id)
213{
214	int i;
215
216	for (i = 0; board_id[i].board; i++)
217		if (board_id[i].board == id)
218			return (&board_id[i]);
219	return (NULL);
220}
221
222static int
223ida_eisa_probe(device_t dev)
224{
225	struct ida_board	*board;
226	u_int32_t		io_base;
227	u_int			irq = 0;
228
229	board = ida_eisa_match(eisa_get_id(dev));
230	if (board == NULL)
231		return (ENXIO);
232	device_set_desc(dev, board->desc);
233
234	io_base = (eisa_get_slot(dev) * EISA_SLOT_SIZE);
235
236	switch (IDA_EISA_IRQ_MASK & (inb(IDA_EISA_IRQ_REG + io_base))) {
237	case IDA_EISA_IRQ_15:
238		irq = 15;
239		break;
240	case IDA_EISA_IRQ_14:
241		irq = 14;
242		break;
243	case IDA_EISA_IRQ_11:
244		irq = 11;
245		break;
246	case IDA_EISA_IRQ_10:
247		irq = 10;
248		break;
249	default:
250		device_printf(dev, "slot %d, illegal irq setting.\n",
251		    eisa_get_slot(dev));
252		return (ENXIO);
253	}
254
255	eisa_add_iospace(dev, (io_base + IDA_EISA_IOPORT_START),
256			 IDA_EISA_IOPORT_LEN, RESVADDR_NONE);
257
258        eisa_add_intr(dev, irq, EISA_TRIGGER_LEVEL);		/* XXX ??? */
259
260	return (0);
261}
262
263static int
264ida_eisa_attach(device_t dev)
265{
266	struct ida_softc	*ida;
267	struct ida_board	*board;
268	int			error;
269	int			rid;
270
271	ida = device_get_softc(dev);
272	ida->dev = dev;
273
274	board = ida_eisa_match(eisa_get_id(dev));
275	ida->cmd = *board->accessor;
276	ida->flags = board->flags;
277
278	ida->regs_res_type = SYS_RES_IOPORT;
279	ida->regs_res_id = 0;
280	ida->regs = bus_alloc_resource(dev, ida->regs_res_type,
281	    &ida->regs_res_id, 0, ~0, 1, RF_ACTIVE);
282	if (ida->regs == NULL) {
283		device_printf(dev, "can't allocate register resources\n");
284		return (ENOMEM);
285	}
286
287	error = bus_dma_tag_create(
288		/* parent	*/	NULL,
289		/* alignment	*/	0,
290		/* boundary	*/	0,
291		/* lowaddr	*/	BUS_SPACE_MAXADDR_32BIT,
292		/* highaddr	*/	BUS_SPACE_MAXADDR,
293		/* filter	*/	NULL,
294		/* filterarg	*/	NULL,
295		/* maxsize	*/	MAXBSIZE,
296		/* nsegments	*/	IDA_NSEG,
297		/* maxsegsize	*/	BUS_SPACE_MAXSIZE_32BIT,
298		/* flags	*/	BUS_DMA_ALLOCNOW,
299		&ida->parent_dmat);
300
301	if (error != 0) {
302		device_printf(dev, "can't allocate DMA tag\n");
303		ida_free(ida);
304		return (ENOMEM);
305	}
306
307	rid = 0;
308	ida->irq_res_type = SYS_RES_IRQ;
309	ida->irq = bus_alloc_resource(dev, ida->irq_res_type, &rid,
310	    0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
311	if (ida->irq == NULL) {
312		ida_free(ida);
313		return (ENOMEM);
314	}
315
316	error = bus_setup_intr(dev, ida->irq, INTR_TYPE_BIO,
317	    ida_intr, ida, &ida->ih);
318	if (error) {
319		device_printf(dev, "can't setup interrupt\n");
320		ida_free(ida);
321		return (ENOMEM);
322	}
323
324	error = ida_init(ida);
325	if (error) {
326		ida_free(ida);
327		return (error);
328	}
329
330	ida_attach(ida);
331	ida->flags |= IDA_ATTACHED;
332
333	return (0);
334}
335
336DRIVER_MODULE(ida, eisa, ida_eisa_driver, ida_devclass, 0, 0);
337