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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * sim710.c - Copyright (C) 1999 Richard Hirst <richard@sleepie.demon.co.uk>
3 *
4 *----------------------------------------------------------------------------
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *----------------------------------------------------------------------------
19 *
20 * MCA card detection code by Trent McNair.
21 * Fixes to not explicitly nul bss data from Xavier Bestel.
22 * Some multiboard fixes from Rolf Eike Beer.
23 * Auto probing of EISA config space from Trevor Hemsley.
24 *
25 * Rewritten to use 53c700.c by James.Bottomley@SteelEye.com
26 *
27 */
28
29#include <linux/config.h>
30#include <linux/module.h>
31
32#include <linux/blkdev.h>
33#include <linux/device.h>
34#include <linux/init.h>
35#include <linux/mca.h>
36#include <linux/eisa.h>
37#include <linux/interrupt.h>
38#include <scsi/scsi_host.h>
39#include <scsi/scsi_device.h>
40#include <scsi/scsi_transport.h>
41#include <scsi/scsi_transport_spi.h>
42
43#include "53c700.h"
44
45
46/* Must be enough for both EISA and MCA */
47#define MAX_SLOTS 8
48static __u8 __initdata id_array[MAX_SLOTS] = { [0 ... MAX_SLOTS-1] = 7 };
49
50static char *sim710; /* command line passed by insmod */
51
52MODULE_AUTHOR("Richard Hirst");
53MODULE_DESCRIPTION("Simple NCR53C710 driver");
54MODULE_LICENSE("GPL");
55
56module_param(sim710, charp, 0);
57
58#ifdef MODULE
59#define ARG_SEP ' '
60#else
61#define ARG_SEP ','
62#endif
63
64static __init int
65param_setup(char *str)
66{
67 char *pos = str, *next;
68 int slot = -1;
69
70 while(pos != NULL && (next = strchr(pos, ':')) != NULL) {
71 int val = (int)simple_strtoul(++next, NULL, 0);
72
73 if(!strncmp(pos, "slot:", 5))
74 slot = val;
75 else if(!strncmp(pos, "id:", 3)) {
76 if(slot == -1) {
77 printk(KERN_WARNING "sim710: Must specify slot for id parameter\n");
78 } else if(slot > MAX_SLOTS) {
79 printk(KERN_WARNING "sim710: Illegal slot %d for id %d\n", slot, val);
80 } else {
81 id_array[slot] = val;
82 }
83 }
84 if((pos = strchr(pos, ARG_SEP)) != NULL)
85 pos++;
86 }
87 return 1;
88}
89__setup("sim710=", param_setup);
90
91static struct scsi_host_template sim710_driver_template = {
92 .name = "LSI (Symbios) 710 MCA/EISA",
93 .proc_name = "sim710",
94 .this_id = 7,
95 .module = THIS_MODULE,
96};
97
98static __devinit int
99sim710_probe_common(struct device *dev, unsigned long base_addr,
100 int irq, int clock, int differential, int scsi_id)
101{
102 struct Scsi_Host * host = NULL;
103 struct NCR_700_Host_Parameters *hostdata =
104 kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
105
106 printk(KERN_NOTICE "sim710: %s\n", dev->bus_id);
107 printk(KERN_NOTICE "sim710: irq = %d, clock = %d, base = 0x%lx, scsi_id = %d\n",
108 irq, clock, base_addr, scsi_id);
109
110 if(hostdata == NULL) {
111 printk(KERN_ERR "sim710: Failed to allocate host data\n");
112 goto out;
113 }
114 memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters));
115
116 if(request_region(base_addr, 64, "sim710") == NULL) {
117 printk(KERN_ERR "sim710: Failed to reserve IO region 0x%lx\n",
118 base_addr);
119 goto out_free;
120 }
121
122 /* Fill in the three required pieces of hostdata */
56fece22005-04-03 03:57:48 -0600123 hostdata->base = ioport_map(base_addr, 64);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 hostdata->differential = differential;
125 hostdata->clock = clock;
126 hostdata->chip710 = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127
128 /* and register the chip */
129 if((host = NCR_700_detect(&sim710_driver_template, hostdata, dev))
130 == NULL) {
131 printk(KERN_ERR "sim710: No host detected; card configuration problem?\n");
132 goto out_release;
133 }
134 host->this_id = scsi_id;
56fece22005-04-03 03:57:48 -0600135 host->base = base_addr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136 host->irq = irq;
137 if (request_irq(irq, NCR_700_intr, SA_SHIRQ, "sim710", host)) {
138 printk(KERN_ERR "sim710: request_irq failed\n");
139 goto out_put_host;
140 }
141
142 scsi_scan_host(host);
143
144 return 0;
145
146 out_put_host:
147 scsi_host_put(host);
148 out_release:
149 release_region(host->base, 64);
150 out_free:
151 kfree(hostdata);
152 out:
153 return -ENODEV;
154}
155
156static __devexit int
157sim710_device_remove(struct device *dev)
158{
159 struct Scsi_Host *host = dev_to_shost(dev);
160 struct NCR_700_Host_Parameters *hostdata =
161 (struct NCR_700_Host_Parameters *)host->hostdata[0];
162
163 scsi_remove_host(host);
164 NCR_700_release(host);
165 kfree(hostdata);
166 free_irq(host->irq, host);
56fece22005-04-03 03:57:48 -0600167 release_region(host->base, 64);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168 return 0;
169}
170
171#ifdef CONFIG_MCA
172
173/* CARD ID 01BB and 01BA use the same pos values */
174#define MCA_01BB_IO_PORTS { 0x0000, 0x0000, 0x0800, 0x0C00, 0x1000, 0x1400, \
175 0x1800, 0x1C00, 0x2000, 0x2400, 0x2800, \
176 0x2C00, 0x3000, 0x3400, 0x3800, 0x3C00, \
177 0x4000, 0x4400, 0x4800, 0x4C00, 0x5000 }
178
179#define MCA_01BB_IRQS { 3, 5, 11, 14 }
180
181/* CARD ID 004f */
182#define MCA_004F_IO_PORTS { 0x0000, 0x0200, 0x0300, 0x0400, 0x0500, 0x0600 }
183#define MCA_004F_IRQS { 5, 9, 14 }
184
185static short sim710_mca_id_table[] = { 0x01bb, 0x01ba, 0x004f, 0};
186
187static __init int
188sim710_mca_probe(struct device *dev)
189{
190 struct mca_device *mca_dev = to_mca_device(dev);
191 int slot = mca_dev->slot;
192 int pos[3];
193 unsigned int base;
194 int irq_vector;
195 short id = sim710_mca_id_table[mca_dev->index];
196 static int io_004f_by_pos[] = MCA_004F_IO_PORTS;
197 static int irq_004f_by_pos[] = MCA_004F_IRQS;
198 static int io_01bb_by_pos[] = MCA_01BB_IO_PORTS;
199 static int irq_01bb_by_pos[] = MCA_01BB_IRQS;
200 char *name;
201 int clock;
202
203 pos[0] = mca_device_read_stored_pos(mca_dev, 2);
204 pos[1] = mca_device_read_stored_pos(mca_dev, 3);
205 pos[2] = mca_device_read_stored_pos(mca_dev, 4);
206
207 /*
208 * 01BB & 01BA port base by bits 7,6,5,4,3,2 in pos[2]
209 *
210 * 000000 <disabled> 001010 0x2800
211 * 000001 <invalid> 001011 0x2C00
212 * 000010 0x0800 001100 0x3000
213 * 000011 0x0C00 001101 0x3400
214 * 000100 0x1000 001110 0x3800
215 * 000101 0x1400 001111 0x3C00
216 * 000110 0x1800 010000 0x4000
217 * 000111 0x1C00 010001 0x4400
218 * 001000 0x2000 010010 0x4800
219 * 001001 0x2400 010011 0x4C00
220 * 010100 0x5000
221 *
222 * 00F4 port base by bits 3,2,1 in pos[0]
223 *
224 * 000 <disabled> 001 0x200
225 * 010 0x300 011 0x400
226 * 100 0x500 101 0x600
227 *
228 * 01BB & 01BA IRQ is specified in pos[0] bits 7 and 6:
229 *
230 * 00 3 10 11
231 * 01 5 11 14
232 *
233 * 00F4 IRQ specified by bits 6,5,4 in pos[0]
234 *
235 * 100 5 101 9
236 * 110 14
237 */
238
239 if (id == 0x01bb || id == 0x01ba) {
240 base = io_01bb_by_pos[(pos[2] & 0xFC) >> 2];
241 irq_vector =
242 irq_01bb_by_pos[((pos[0] & 0xC0) >> 6)];
243
244 clock = 50;
245 if (id == 0x01bb)
246 name = "NCR 3360/3430 SCSI SubSystem";
247 else
248 name = "NCR Dual SIOP SCSI Host Adapter Board";
249 } else if ( id == 0x004f ) {
250 base = io_004f_by_pos[((pos[0] & 0x0E) >> 1)];
251 irq_vector =
252 irq_004f_by_pos[((pos[0] & 0x70) >> 4) - 4];
253 clock = 50;
254 name = "NCR 53c710 SCSI Host Adapter Board";
255 } else {
256 return -ENODEV;
257 }
258 mca_device_set_name(mca_dev, name);
259 mca_device_set_claim(mca_dev, 1);
260 base = mca_device_transform_ioport(mca_dev, base);
261 irq_vector = mca_device_transform_irq(mca_dev, irq_vector);
262
263 return sim710_probe_common(dev, base, irq_vector, clock,
264 0, id_array[slot]);
265}
266
267static struct mca_driver sim710_mca_driver = {
268 .id_table = sim710_mca_id_table,
269 .driver = {
270 .name = "sim710",
271 .bus = &mca_bus_type,
272 .probe = sim710_mca_probe,
273 .remove = __devexit_p(sim710_device_remove),
274 },
275};
276
277#endif /* CONFIG_MCA */
278
279#ifdef CONFIG_EISA
280static struct eisa_device_id sim710_eisa_ids[] = {
281 { "CPQ4410" },
282 { "CPQ4411" },
283 { "HWP0C80" },
284 { "" }
285};
286
287static __init int
288sim710_eisa_probe(struct device *dev)
289{
290 struct eisa_device *edev = to_eisa_device(dev);
291 unsigned long io_addr = edev->base_addr;
292 char eisa_cpq_irqs[] = { 11, 14, 15, 10, 9, 0 };
293 char eisa_hwp_irqs[] = { 3, 4, 5, 7, 12, 10, 11, 0};
294 char *eisa_irqs;
295 unsigned char irq_index;
296 unsigned char irq, differential = 0, scsi_id = 7;
297
298 if(strcmp(edev->id.sig, "HWP0C80") == 0) {
299 __u8 val;
300 eisa_irqs = eisa_hwp_irqs;
301 irq_index = (inb(io_addr + 0xc85) & 0x7) - 1;
302
303 val = inb(io_addr + 0x4);
304 scsi_id = ffs(val) - 1;
305
306 if(scsi_id > 7 || (val & ~(1<<scsi_id)) != 0) {
307 printk(KERN_ERR "sim710.c, EISA card %s has incorrect scsi_id, setting to 7\n", dev->bus_id);
308 scsi_id = 7;
309 }
310 } else {
311 eisa_irqs = eisa_cpq_irqs;
312 irq_index = inb(io_addr + 0xc88) & 0x07;
313 }
314
315 if(irq_index >= strlen(eisa_irqs)) {
316 printk("sim710.c: irq nasty\n");
317 return -ENODEV;
318 }
319
320 irq = eisa_irqs[irq_index];
321
322 return sim710_probe_common(dev, io_addr, irq, 50,
323 differential, scsi_id);
324}
325
326static struct eisa_driver sim710_eisa_driver = {
327 .id_table = sim710_eisa_ids,
328 .driver = {
329 .name = "sim710",
330 .probe = sim710_eisa_probe,
331 .remove = __devexit_p(sim710_device_remove),
332 },
333};
334#endif /* CONFIG_EISA */
335
336static int __init sim710_init(void)
337{
338 int err = -ENODEV;
339
340#ifdef MODULE
341 if (sim710)
342 param_setup(sim710);
343#endif
344
345#ifdef CONFIG_MCA
346 err = mca_register_driver(&sim710_mca_driver);
347#endif
348
349#ifdef CONFIG_EISA
350 err = eisa_driver_register(&sim710_eisa_driver);
351#endif
352 /* FIXME: what we'd really like to return here is -ENODEV if
353 * no devices have actually been found. Instead, the err
354 * above actually only reports problems with kobject_register,
355 * so for the moment return success */
356
357 return 0;
358}
359
360static void __exit sim710_exit(void)
361{
362#ifdef CONFIG_MCA
363 if (MCA_bus)
364 mca_unregister_driver(&sim710_mca_driver);
365#endif
366
367#ifdef CONFIG_EISA
368 eisa_driver_unregister(&sim710_eisa_driver);
369#endif
370}
371
372module_init(sim710_init);
373module_exit(sim710_exit);