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>
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>
45 /* Must be enough for both EISA and MCA */
47 static __u8 __initdata id_array[MAX_SLOTS] = { [0 ... MAX_SLOTS-1] = 7 };
49 static char *sim710; /* command line passed by insmod */
51 MODULE_AUTHOR("Richard Hirst");
52 MODULE_DESCRIPTION("Simple NCR53C710 driver");
53 MODULE_LICENSE("GPL");
55 module_param(sim710, charp, 0);
64 param_setup(char *str)
66 char *pos = str, *next;
69 while(pos != NULL && (next = strchr(pos, ':')) != NULL) {
70 int val = (int)simple_strtoul(++next, NULL, 0);
72 if(!strncmp(pos, "slot:", 5))
74 else if(!strncmp(pos, "id:", 3)) {
76 printk(KERN_WARNING "sim710: Must specify slot for id parameter\n");
77 } else if(slot >= MAX_SLOTS) {
78 printk(KERN_WARNING "sim710: Illegal slot %d for id %d\n", slot, val);
83 if((pos = strchr(pos, ARG_SEP)) != NULL)
88 __setup("sim710=", param_setup);
90 static struct scsi_host_template sim710_driver_template = {
91 .name = "LSI (Symbios) 710 MCA/EISA",
92 .proc_name = "sim710",
94 .module = THIS_MODULE,
98 sim710_probe_common(struct device *dev, unsigned long base_addr,
99 int irq, int clock, int differential, int scsi_id)
101 struct Scsi_Host * host = NULL;
102 struct NCR_700_Host_Parameters *hostdata =
103 kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
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);
109 if(hostdata == NULL) {
110 printk(KERN_ERR "sim710: Failed to allocate host data\n");
113 memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters));
115 if(request_region(base_addr, 64, "sim710") == NULL) {
116 printk(KERN_ERR "sim710: Failed to reserve IO region 0x%lx\n",
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))
131 printk(KERN_ERR "sim710: No host detected; card configuration problem?\n");
134 host->this_id = scsi_id;
135 host->base = base_addr;
137 if (request_irq(irq, NCR_700_intr, IRQF_SHARED, "sim710", host)) {
138 printk(KERN_ERR "sim710: request_irq failed\n");
142 scsi_scan_host(host);
149 release_region(base_addr, 64);
157 sim710_device_remove(struct device *dev)
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];
163 scsi_remove_host(host);
164 NCR_700_release(host);
166 free_irq(host->irq, host);
167 release_region(host->base, 64);
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 }
179 #define MCA_01BB_IRQS { 3, 5, 11, 14 }
182 #define MCA_004F_IO_PORTS { 0x0000, 0x0200, 0x0300, 0x0400, 0x0500, 0x0600 }
183 #define MCA_004F_IRQS { 5, 9, 14 }
185 static short sim710_mca_id_table[] = { 0x01bb, 0x01ba, 0x004f, 0};
188 sim710_mca_probe(struct device *dev)
190 struct mca_device *mca_dev = to_mca_device(dev);
191 int slot = mca_dev->slot;
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;
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);
208 * 01BB & 01BA port base by bits 7,6,5,4,3,2 in pos[2]
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
222 * 00F4 port base by bits 3,2,1 in pos[0]
224 * 000 <disabled> 001 0x200
225 * 010 0x300 011 0x400
226 * 100 0x500 101 0x600
228 * 01BB & 01BA IRQ is specified in pos[0] bits 7 and 6:
233 * 00F4 IRQ specified by bits 6,5,4 in pos[0]
239 if (id == 0x01bb || id == 0x01ba) {
240 base = io_01bb_by_pos[(pos[2] & 0xFC) >> 2];
242 irq_01bb_by_pos[((pos[0] & 0xC0) >> 6)];
246 name = "NCR 3360/3430 SCSI SubSystem";
248 name = "NCR Dual SIOP SCSI Host Adapter Board";
249 } else if ( id == 0x004f ) {
250 base = io_004f_by_pos[((pos[0] & 0x0E) >> 1)];
252 irq_004f_by_pos[((pos[0] & 0x70) >> 4) - 4];
254 name = "NCR 53c710 SCSI Host Adapter Board";
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);
263 return sim710_probe_common(dev, base, irq_vector, clock,
267 static struct mca_driver sim710_mca_driver = {
268 .id_table = sim710_mca_id_table,
271 .bus = &mca_bus_type,
272 .probe = sim710_mca_probe,
273 .remove = __devexit_p(sim710_device_remove),
277 #endif /* CONFIG_MCA */
280 static struct eisa_device_id sim710_eisa_ids[] = {
286 MODULE_DEVICE_TABLE(eisa, sim710_eisa_ids);
289 sim710_eisa_probe(struct device *dev)
291 struct eisa_device *edev = to_eisa_device(dev);
292 unsigned long io_addr = edev->base_addr;
293 char eisa_cpq_irqs[] = { 11, 14, 15, 10, 9, 0 };
294 char eisa_hwp_irqs[] = { 3, 4, 5, 7, 12, 10, 11, 0};
296 unsigned char irq_index;
297 unsigned char irq, differential = 0, scsi_id = 7;
299 if(strcmp(edev->id.sig, "HWP0C80") == 0) {
301 eisa_irqs = eisa_hwp_irqs;
302 irq_index = (inb(io_addr + 0xc85) & 0x7) - 1;
304 val = inb(io_addr + 0x4);
305 scsi_id = ffs(val) - 1;
307 if(scsi_id > 7 || (val & ~(1<<scsi_id)) != 0) {
308 printk(KERN_ERR "sim710.c, EISA card %s has incorrect scsi_id, setting to 7\n", dev->bus_id);
312 eisa_irqs = eisa_cpq_irqs;
313 irq_index = inb(io_addr + 0xc88) & 0x07;
316 if(irq_index >= strlen(eisa_irqs)) {
317 printk("sim710.c: irq nasty\n");
321 irq = eisa_irqs[irq_index];
323 return sim710_probe_common(dev, io_addr, irq, 50,
324 differential, scsi_id);
327 static struct eisa_driver sim710_eisa_driver = {
328 .id_table = sim710_eisa_ids,
331 .probe = sim710_eisa_probe,
332 .remove = __devexit_p(sim710_device_remove),
335 #endif /* CONFIG_EISA */
337 static int __init sim710_init(void)
347 err = mca_register_driver(&sim710_mca_driver);
351 err = eisa_driver_register(&sim710_eisa_driver);
353 /* FIXME: what we'd really like to return here is -ENODEV if
354 * no devices have actually been found. Instead, the err
355 * above actually only reports problems with kobject_register,
356 * so for the moment return success */
361 static void __exit sim710_exit(void)
365 mca_unregister_driver(&sim710_mca_driver);
369 eisa_driver_unregister(&sim710_eisa_driver);
373 module_init(sim710_init);
374 module_exit(sim710_exit);