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1da177e4 LT |
1 | /* |
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 | ||
1da177e4 LT |
29 | #include <linux/module.h> |
30 | ||
31 | #include <linux/blkdev.h> | |
32 | #include <linux/device.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/mca.h> | |
35 | #include <linux/eisa.h> | |
36 | #include <linux/interrupt.h> | |
37 | #include <scsi/scsi_host.h> | |
38 | #include <scsi/scsi_device.h> | |
39 | #include <scsi/scsi_transport.h> | |
40 | #include <scsi/scsi_transport_spi.h> | |
41 | ||
42 | #include "53c700.h" | |
43 | ||
44 | ||
45 | /* Must be enough for both EISA and MCA */ | |
46 | #define MAX_SLOTS 8 | |
47 | static __u8 __initdata id_array[MAX_SLOTS] = { [0 ... MAX_SLOTS-1] = 7 }; | |
48 | ||
49 | static char *sim710; /* command line passed by insmod */ | |
50 | ||
51 | MODULE_AUTHOR("Richard Hirst"); | |
52 | MODULE_DESCRIPTION("Simple NCR53C710 driver"); | |
53 | MODULE_LICENSE("GPL"); | |
54 | ||
55 | module_param(sim710, charp, 0); | |
56 | ||
57 | #ifdef MODULE | |
58 | #define ARG_SEP ' ' | |
59 | #else | |
60 | #define ARG_SEP ',' | |
61 | #endif | |
62 | ||
63 | static __init int | |
64 | param_setup(char *str) | |
65 | { | |
66 | char *pos = str, *next; | |
67 | int slot = -1; | |
68 | ||
69 | while(pos != NULL && (next = strchr(pos, ':')) != NULL) { | |
70 | int val = (int)simple_strtoul(++next, NULL, 0); | |
71 | ||
72 | if(!strncmp(pos, "slot:", 5)) | |
73 | slot = val; | |
74 | else if(!strncmp(pos, "id:", 3)) { | |
75 | if(slot == -1) { | |
76 | printk(KERN_WARNING "sim710: Must specify slot for id parameter\n"); | |
1a34456b | 77 | } else if(slot >= MAX_SLOTS) { |
1da177e4 LT |
78 | printk(KERN_WARNING "sim710: Illegal slot %d for id %d\n", slot, val); |
79 | } else { | |
80 | id_array[slot] = val; | |
81 | } | |
82 | } | |
83 | if((pos = strchr(pos, ARG_SEP)) != NULL) | |
84 | pos++; | |
85 | } | |
86 | return 1; | |
87 | } | |
88 | __setup("sim710=", param_setup); | |
89 | ||
90 | static struct scsi_host_template sim710_driver_template = { | |
91 | .name = "LSI (Symbios) 710 MCA/EISA", | |
92 | .proc_name = "sim710", | |
93 | .this_id = 7, | |
94 | .module = THIS_MODULE, | |
95 | }; | |
96 | ||
97 | static __devinit int | |
98 | sim710_probe_common(struct device *dev, unsigned long base_addr, | |
99 | int irq, int clock, int differential, int scsi_id) | |
100 | { | |
101 | struct Scsi_Host * host = NULL; | |
102 | struct NCR_700_Host_Parameters *hostdata = | |
103 | kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); | |
104 | ||
105 | printk(KERN_NOTICE "sim710: %s\n", dev->bus_id); | |
106 | printk(KERN_NOTICE "sim710: irq = %d, clock = %d, base = 0x%lx, scsi_id = %d\n", | |
107 | irq, clock, base_addr, scsi_id); | |
108 | ||
109 | if(hostdata == NULL) { | |
110 | printk(KERN_ERR "sim710: Failed to allocate host data\n"); | |
111 | goto out; | |
112 | } | |
113 | memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters)); | |
114 | ||
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; | |
119 | } | |
120 | ||
121 | /* Fill in the three required pieces of hostdata */ | |
56fece20 | 122 | hostdata->base = ioport_map(base_addr, 64); |
1da177e4 LT |
123 | hostdata->differential = differential; |
124 | hostdata->clock = clock; | |
125 | hostdata->chip710 = 1; | |
1da177e4 LT |
126 | |
127 | /* and register the chip */ | |
128 | if((host = NCR_700_detect(&sim710_driver_template, hostdata, dev)) | |
129 | == NULL) { | |
130 | printk(KERN_ERR "sim710: No host detected; card configuration problem?\n"); | |
131 | goto out_release; | |
132 | } | |
133 | host->this_id = scsi_id; | |
56fece20 | 134 | host->base = base_addr; |
1da177e4 LT |
135 | host->irq = irq; |
136 | if (request_irq(irq, NCR_700_intr, SA_SHIRQ, "sim710", host)) { | |
137 | printk(KERN_ERR "sim710: request_irq failed\n"); | |
138 | goto out_put_host; | |
139 | } | |
140 | ||
141 | scsi_scan_host(host); | |
142 | ||
143 | return 0; | |
144 | ||
145 | out_put_host: | |
146 | scsi_host_put(host); | |
147 | out_release: | |
a1d4f73a | 148 | release_region(base_addr, 64); |
1da177e4 LT |
149 | out_free: |
150 | kfree(hostdata); | |
151 | out: | |
152 | return -ENODEV; | |
153 | } | |
154 | ||
155 | static __devexit int | |
156 | sim710_device_remove(struct device *dev) | |
157 | { | |
158 | struct Scsi_Host *host = dev_to_shost(dev); | |
159 | struct NCR_700_Host_Parameters *hostdata = | |
160 | (struct NCR_700_Host_Parameters *)host->hostdata[0]; | |
161 | ||
162 | scsi_remove_host(host); | |
163 | NCR_700_release(host); | |
164 | kfree(hostdata); | |
165 | free_irq(host->irq, host); | |
56fece20 | 166 | release_region(host->base, 64); |
1da177e4 LT |
167 | return 0; |
168 | } | |
169 | ||
170 | #ifdef CONFIG_MCA | |
171 | ||
172 | /* CARD ID 01BB and 01BA use the same pos values */ | |
173 | #define MCA_01BB_IO_PORTS { 0x0000, 0x0000, 0x0800, 0x0C00, 0x1000, 0x1400, \ | |
174 | 0x1800, 0x1C00, 0x2000, 0x2400, 0x2800, \ | |
175 | 0x2C00, 0x3000, 0x3400, 0x3800, 0x3C00, \ | |
176 | 0x4000, 0x4400, 0x4800, 0x4C00, 0x5000 } | |
177 | ||
178 | #define MCA_01BB_IRQS { 3, 5, 11, 14 } | |
179 | ||
180 | /* CARD ID 004f */ | |
181 | #define MCA_004F_IO_PORTS { 0x0000, 0x0200, 0x0300, 0x0400, 0x0500, 0x0600 } | |
182 | #define MCA_004F_IRQS { 5, 9, 14 } | |
183 | ||
184 | static short sim710_mca_id_table[] = { 0x01bb, 0x01ba, 0x004f, 0}; | |
185 | ||
186 | static __init int | |
187 | sim710_mca_probe(struct device *dev) | |
188 | { | |
189 | struct mca_device *mca_dev = to_mca_device(dev); | |
190 | int slot = mca_dev->slot; | |
191 | int pos[3]; | |
192 | unsigned int base; | |
193 | int irq_vector; | |
194 | short id = sim710_mca_id_table[mca_dev->index]; | |
195 | static int io_004f_by_pos[] = MCA_004F_IO_PORTS; | |
196 | static int irq_004f_by_pos[] = MCA_004F_IRQS; | |
197 | static int io_01bb_by_pos[] = MCA_01BB_IO_PORTS; | |
198 | static int irq_01bb_by_pos[] = MCA_01BB_IRQS; | |
199 | char *name; | |
200 | int clock; | |
201 | ||
202 | pos[0] = mca_device_read_stored_pos(mca_dev, 2); | |
203 | pos[1] = mca_device_read_stored_pos(mca_dev, 3); | |
204 | pos[2] = mca_device_read_stored_pos(mca_dev, 4); | |
205 | ||
206 | /* | |
207 | * 01BB & 01BA port base by bits 7,6,5,4,3,2 in pos[2] | |
208 | * | |
209 | * 000000 <disabled> 001010 0x2800 | |
210 | * 000001 <invalid> 001011 0x2C00 | |
211 | * 000010 0x0800 001100 0x3000 | |
212 | * 000011 0x0C00 001101 0x3400 | |
213 | * 000100 0x1000 001110 0x3800 | |
214 | * 000101 0x1400 001111 0x3C00 | |
215 | * 000110 0x1800 010000 0x4000 | |
216 | * 000111 0x1C00 010001 0x4400 | |
217 | * 001000 0x2000 010010 0x4800 | |
218 | * 001001 0x2400 010011 0x4C00 | |
219 | * 010100 0x5000 | |
220 | * | |
221 | * 00F4 port base by bits 3,2,1 in pos[0] | |
222 | * | |
223 | * 000 <disabled> 001 0x200 | |
224 | * 010 0x300 011 0x400 | |
225 | * 100 0x500 101 0x600 | |
226 | * | |
227 | * 01BB & 01BA IRQ is specified in pos[0] bits 7 and 6: | |
228 | * | |
229 | * 00 3 10 11 | |
230 | * 01 5 11 14 | |
231 | * | |
232 | * 00F4 IRQ specified by bits 6,5,4 in pos[0] | |
233 | * | |
234 | * 100 5 101 9 | |
235 | * 110 14 | |
236 | */ | |
237 | ||
238 | if (id == 0x01bb || id == 0x01ba) { | |
239 | base = io_01bb_by_pos[(pos[2] & 0xFC) >> 2]; | |
240 | irq_vector = | |
241 | irq_01bb_by_pos[((pos[0] & 0xC0) >> 6)]; | |
242 | ||
243 | clock = 50; | |
244 | if (id == 0x01bb) | |
245 | name = "NCR 3360/3430 SCSI SubSystem"; | |
246 | else | |
247 | name = "NCR Dual SIOP SCSI Host Adapter Board"; | |
248 | } else if ( id == 0x004f ) { | |
249 | base = io_004f_by_pos[((pos[0] & 0x0E) >> 1)]; | |
250 | irq_vector = | |
251 | irq_004f_by_pos[((pos[0] & 0x70) >> 4) - 4]; | |
252 | clock = 50; | |
253 | name = "NCR 53c710 SCSI Host Adapter Board"; | |
254 | } else { | |
255 | return -ENODEV; | |
256 | } | |
257 | mca_device_set_name(mca_dev, name); | |
258 | mca_device_set_claim(mca_dev, 1); | |
259 | base = mca_device_transform_ioport(mca_dev, base); | |
260 | irq_vector = mca_device_transform_irq(mca_dev, irq_vector); | |
261 | ||
262 | return sim710_probe_common(dev, base, irq_vector, clock, | |
263 | 0, id_array[slot]); | |
264 | } | |
265 | ||
266 | static struct mca_driver sim710_mca_driver = { | |
267 | .id_table = sim710_mca_id_table, | |
268 | .driver = { | |
269 | .name = "sim710", | |
270 | .bus = &mca_bus_type, | |
271 | .probe = sim710_mca_probe, | |
272 | .remove = __devexit_p(sim710_device_remove), | |
273 | }, | |
274 | }; | |
275 | ||
276 | #endif /* CONFIG_MCA */ | |
277 | ||
278 | #ifdef CONFIG_EISA | |
279 | static struct eisa_device_id sim710_eisa_ids[] = { | |
280 | { "CPQ4410" }, | |
281 | { "CPQ4411" }, | |
282 | { "HWP0C80" }, | |
283 | { "" } | |
284 | }; | |
285 | ||
286 | static __init int | |
287 | sim710_eisa_probe(struct device *dev) | |
288 | { | |
289 | struct eisa_device *edev = to_eisa_device(dev); | |
290 | unsigned long io_addr = edev->base_addr; | |
291 | char eisa_cpq_irqs[] = { 11, 14, 15, 10, 9, 0 }; | |
292 | char eisa_hwp_irqs[] = { 3, 4, 5, 7, 12, 10, 11, 0}; | |
293 | char *eisa_irqs; | |
294 | unsigned char irq_index; | |
295 | unsigned char irq, differential = 0, scsi_id = 7; | |
296 | ||
297 | if(strcmp(edev->id.sig, "HWP0C80") == 0) { | |
298 | __u8 val; | |
299 | eisa_irqs = eisa_hwp_irqs; | |
300 | irq_index = (inb(io_addr + 0xc85) & 0x7) - 1; | |
301 | ||
302 | val = inb(io_addr + 0x4); | |
303 | scsi_id = ffs(val) - 1; | |
304 | ||
305 | if(scsi_id > 7 || (val & ~(1<<scsi_id)) != 0) { | |
306 | printk(KERN_ERR "sim710.c, EISA card %s has incorrect scsi_id, setting to 7\n", dev->bus_id); | |
307 | scsi_id = 7; | |
308 | } | |
309 | } else { | |
310 | eisa_irqs = eisa_cpq_irqs; | |
311 | irq_index = inb(io_addr + 0xc88) & 0x07; | |
312 | } | |
313 | ||
314 | if(irq_index >= strlen(eisa_irqs)) { | |
315 | printk("sim710.c: irq nasty\n"); | |
316 | return -ENODEV; | |
317 | } | |
318 | ||
319 | irq = eisa_irqs[irq_index]; | |
320 | ||
321 | return sim710_probe_common(dev, io_addr, irq, 50, | |
322 | differential, scsi_id); | |
323 | } | |
324 | ||
325 | static struct eisa_driver sim710_eisa_driver = { | |
326 | .id_table = sim710_eisa_ids, | |
327 | .driver = { | |
328 | .name = "sim710", | |
329 | .probe = sim710_eisa_probe, | |
330 | .remove = __devexit_p(sim710_device_remove), | |
331 | }, | |
332 | }; | |
333 | #endif /* CONFIG_EISA */ | |
334 | ||
335 | static int __init sim710_init(void) | |
336 | { | |
337 | int err = -ENODEV; | |
338 | ||
339 | #ifdef MODULE | |
340 | if (sim710) | |
341 | param_setup(sim710); | |
342 | #endif | |
343 | ||
344 | #ifdef CONFIG_MCA | |
345 | err = mca_register_driver(&sim710_mca_driver); | |
346 | #endif | |
347 | ||
348 | #ifdef CONFIG_EISA | |
349 | err = eisa_driver_register(&sim710_eisa_driver); | |
350 | #endif | |
351 | /* FIXME: what we'd really like to return here is -ENODEV if | |
352 | * no devices have actually been found. Instead, the err | |
353 | * above actually only reports problems with kobject_register, | |
354 | * so for the moment return success */ | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
359 | static void __exit sim710_exit(void) | |
360 | { | |
361 | #ifdef CONFIG_MCA | |
362 | if (MCA_bus) | |
363 | mca_unregister_driver(&sim710_mca_driver); | |
364 | #endif | |
365 | ||
366 | #ifdef CONFIG_EISA | |
367 | eisa_driver_unregister(&sim710_eisa_driver); | |
368 | #endif | |
369 | } | |
370 | ||
371 | module_init(sim710_init); | |
372 | module_exit(sim710_exit); |