UBIFS: make debugging messages light again
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / sim710.c
blob8ac6ce792b696763e54a4a88c6eb6b3120492a31
1 /*
2 * sim710.c - Copyright (C) 1999 Richard Hirst <richard@sleepie.demon.co.uk>
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.
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.
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 *----------------------------------------------------------------------------
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.
25 * Rewritten to use 53c700.c by James.Bottomley@SteelEye.com
29 #include <linux/module.h>
30 #include <linux/slab.h>
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>
43 #include "53c700.h"
46 /* Must be enough for both EISA and MCA */
47 #define MAX_SLOTS 8
48 static __u8 __initdata id_array[MAX_SLOTS] = { [0 ... MAX_SLOTS-1] = 7 };
50 static char *sim710; /* command line passed by insmod */
52 MODULE_AUTHOR("Richard Hirst");
53 MODULE_DESCRIPTION("Simple NCR53C710 driver");
54 MODULE_LICENSE("GPL");
56 module_param(sim710, charp, 0);
58 #ifdef MODULE
59 #define ARG_SEP ' '
60 #else
61 #define ARG_SEP ','
62 #endif
64 static __init int
65 param_setup(char *str)
67 char *pos = str, *next;
68 int slot = -1;
70 while(pos != NULL && (next = strchr(pos, ':')) != NULL) {
71 int val = (int)simple_strtoul(++next, NULL, 0);
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;
84 if((pos = strchr(pos, ARG_SEP)) != NULL)
85 pos++;
87 return 1;
89 __setup("sim710=", param_setup);
91 static 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,
98 static __devinit int
99 sim710_probe_common(struct device *dev, unsigned long base_addr,
100 int irq, int clock, int differential, int scsi_id)
102 struct Scsi_Host * host = NULL;
103 struct NCR_700_Host_Parameters *hostdata =
104 kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
106 printk(KERN_NOTICE "sim710: %s\n", dev_name(dev));
107 printk(KERN_NOTICE "sim710: irq = %d, clock = %d, base = 0x%lx, scsi_id = %d\n",
108 irq, clock, base_addr, scsi_id);
110 if(hostdata == NULL) {
111 printk(KERN_ERR "sim710: Failed to allocate host data\n");
112 goto out;
115 if(request_region(base_addr, 64, "sim710") == NULL) {
116 printk(KERN_ERR "sim710: Failed to reserve IO region 0x%lx\n",
117 base_addr);
118 goto out_free;
121 /* Fill in the three required pieces of hostdata */
122 hostdata->base = ioport_map(base_addr, 64);
123 hostdata->differential = differential;
124 hostdata->clock = clock;
125 hostdata->chip710 = 1;
126 hostdata->burst_length = 8;
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;
134 host->this_id = scsi_id;
135 host->base = base_addr;
136 host->irq = irq;
137 if (request_irq(irq, NCR_700_intr, IRQF_SHARED, "sim710", host)) {
138 printk(KERN_ERR "sim710: request_irq failed\n");
139 goto out_put_host;
142 dev_set_drvdata(dev, host);
143 scsi_scan_host(host);
145 return 0;
147 out_put_host:
148 scsi_host_put(host);
149 out_release:
150 release_region(base_addr, 64);
151 out_free:
152 kfree(hostdata);
153 out:
154 return -ENODEV;
157 static __devexit int
158 sim710_device_remove(struct device *dev)
160 struct Scsi_Host *host = dev_get_drvdata(dev);
161 struct NCR_700_Host_Parameters *hostdata =
162 (struct NCR_700_Host_Parameters *)host->hostdata[0];
164 scsi_remove_host(host);
165 NCR_700_release(host);
166 kfree(hostdata);
167 free_irq(host->irq, host);
168 release_region(host->base, 64);
169 return 0;
172 #ifdef CONFIG_MCA
174 /* CARD ID 01BB and 01BA use the same pos values */
175 #define MCA_01BB_IO_PORTS { 0x0000, 0x0000, 0x0800, 0x0C00, 0x1000, 0x1400, \
176 0x1800, 0x1C00, 0x2000, 0x2400, 0x2800, \
177 0x2C00, 0x3000, 0x3400, 0x3800, 0x3C00, \
178 0x4000, 0x4400, 0x4800, 0x4C00, 0x5000 }
180 #define MCA_01BB_IRQS { 3, 5, 11, 14 }
182 /* CARD ID 004f */
183 #define MCA_004F_IO_PORTS { 0x0000, 0x0200, 0x0300, 0x0400, 0x0500, 0x0600 }
184 #define MCA_004F_IRQS { 5, 9, 14 }
186 static short sim710_mca_id_table[] = { 0x01bb, 0x01ba, 0x004f, 0};
188 static __init int
189 sim710_mca_probe(struct device *dev)
191 struct mca_device *mca_dev = to_mca_device(dev);
192 int slot = mca_dev->slot;
193 int pos[3];
194 unsigned int base;
195 int irq_vector;
196 short id = sim710_mca_id_table[mca_dev->index];
197 static int io_004f_by_pos[] = MCA_004F_IO_PORTS;
198 static int irq_004f_by_pos[] = MCA_004F_IRQS;
199 static int io_01bb_by_pos[] = MCA_01BB_IO_PORTS;
200 static int irq_01bb_by_pos[] = MCA_01BB_IRQS;
201 char *name;
202 int clock;
204 pos[0] = mca_device_read_stored_pos(mca_dev, 2);
205 pos[1] = mca_device_read_stored_pos(mca_dev, 3);
206 pos[2] = mca_device_read_stored_pos(mca_dev, 4);
209 * 01BB & 01BA port base by bits 7,6,5,4,3,2 in pos[2]
211 * 000000 <disabled> 001010 0x2800
212 * 000001 <invalid> 001011 0x2C00
213 * 000010 0x0800 001100 0x3000
214 * 000011 0x0C00 001101 0x3400
215 * 000100 0x1000 001110 0x3800
216 * 000101 0x1400 001111 0x3C00
217 * 000110 0x1800 010000 0x4000
218 * 000111 0x1C00 010001 0x4400
219 * 001000 0x2000 010010 0x4800
220 * 001001 0x2400 010011 0x4C00
221 * 010100 0x5000
223 * 00F4 port base by bits 3,2,1 in pos[0]
225 * 000 <disabled> 001 0x200
226 * 010 0x300 011 0x400
227 * 100 0x500 101 0x600
229 * 01BB & 01BA IRQ is specified in pos[0] bits 7 and 6:
231 * 00 3 10 11
232 * 01 5 11 14
234 * 00F4 IRQ specified by bits 6,5,4 in pos[0]
236 * 100 5 101 9
237 * 110 14
240 if (id == 0x01bb || id == 0x01ba) {
241 base = io_01bb_by_pos[(pos[2] & 0xFC) >> 2];
242 irq_vector =
243 irq_01bb_by_pos[((pos[0] & 0xC0) >> 6)];
245 clock = 50;
246 if (id == 0x01bb)
247 name = "NCR 3360/3430 SCSI SubSystem";
248 else
249 name = "NCR Dual SIOP SCSI Host Adapter Board";
250 } else if ( id == 0x004f ) {
251 base = io_004f_by_pos[((pos[0] & 0x0E) >> 1)];
252 irq_vector =
253 irq_004f_by_pos[((pos[0] & 0x70) >> 4) - 4];
254 clock = 50;
255 name = "NCR 53c710 SCSI Host Adapter Board";
256 } else {
257 return -ENODEV;
259 mca_device_set_name(mca_dev, name);
260 mca_device_set_claim(mca_dev, 1);
261 base = mca_device_transform_ioport(mca_dev, base);
262 irq_vector = mca_device_transform_irq(mca_dev, irq_vector);
264 return sim710_probe_common(dev, base, irq_vector, clock,
265 0, id_array[slot]);
268 static struct mca_driver sim710_mca_driver = {
269 .id_table = sim710_mca_id_table,
270 .driver = {
271 .name = "sim710",
272 .bus = &mca_bus_type,
273 .probe = sim710_mca_probe,
274 .remove = __devexit_p(sim710_device_remove),
278 #endif /* CONFIG_MCA */
280 #ifdef CONFIG_EISA
281 static struct eisa_device_id sim710_eisa_ids[] = {
282 { "CPQ4410" },
283 { "CPQ4411" },
284 { "HWP0C80" },
285 { "" }
287 MODULE_DEVICE_TABLE(eisa, sim710_eisa_ids);
289 static __init int
290 sim710_eisa_probe(struct device *dev)
292 struct eisa_device *edev = to_eisa_device(dev);
293 unsigned long io_addr = edev->base_addr;
294 char eisa_cpq_irqs[] = { 11, 14, 15, 10, 9, 0 };
295 char eisa_hwp_irqs[] = { 3, 4, 5, 7, 12, 10, 11, 0};
296 char *eisa_irqs;
297 unsigned char irq_index;
298 unsigned char irq, differential = 0, scsi_id = 7;
300 if(strcmp(edev->id.sig, "HWP0C80") == 0) {
301 __u8 val;
302 eisa_irqs = eisa_hwp_irqs;
303 irq_index = (inb(io_addr + 0xc85) & 0x7) - 1;
305 val = inb(io_addr + 0x4);
306 scsi_id = ffs(val) - 1;
308 if(scsi_id > 7 || (val & ~(1<<scsi_id)) != 0) {
309 printk(KERN_ERR "sim710.c, EISA card %s has incorrect scsi_id, setting to 7\n", dev_name(dev));
310 scsi_id = 7;
312 } else {
313 eisa_irqs = eisa_cpq_irqs;
314 irq_index = inb(io_addr + 0xc88) & 0x07;
317 if(irq_index >= strlen(eisa_irqs)) {
318 printk("sim710.c: irq nasty\n");
319 return -ENODEV;
322 irq = eisa_irqs[irq_index];
324 return sim710_probe_common(dev, io_addr, irq, 50,
325 differential, scsi_id);
328 static struct eisa_driver sim710_eisa_driver = {
329 .id_table = sim710_eisa_ids,
330 .driver = {
331 .name = "sim710",
332 .probe = sim710_eisa_probe,
333 .remove = __devexit_p(sim710_device_remove),
336 #endif /* CONFIG_EISA */
338 static int __init sim710_init(void)
340 int err = -ENODEV;
342 #ifdef MODULE
343 if (sim710)
344 param_setup(sim710);
345 #endif
347 #ifdef CONFIG_MCA
348 err = mca_register_driver(&sim710_mca_driver);
349 #endif
351 #ifdef CONFIG_EISA
352 err = eisa_driver_register(&sim710_eisa_driver);
353 #endif
354 /* FIXME: what we'd really like to return here is -ENODEV if
355 * no devices have actually been found. Instead, the err
356 * above actually only reports problems with kobject_register,
357 * so for the moment return success */
359 return 0;
362 static void __exit sim710_exit(void)
364 #ifdef CONFIG_MCA
365 if (MCA_bus)
366 mca_unregister_driver(&sim710_mca_driver);
367 #endif
369 #ifdef CONFIG_EISA
370 eisa_driver_unregister(&sim710_eisa_driver);
371 #endif
374 module_init(sim710_init);
375 module_exit(sim710_exit);