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 29#include <linux/module.h> 30#include <linux/slab.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 kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); 105 106 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); 109 110 if(hostdata == NULL) { 111 printk(KERN_ERR "sim710: Failed to allocate host data\n"); 112 goto out; 113 } 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 */ 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; 127 128 /* 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; 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; 140 } 141 142 dev_set_drvdata(dev, host); 143 scsi_scan_host(host); 144 145 return 0; 146 147 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; 155} 156 157static __devexit int 158sim710_device_remove(struct device *dev) 159{ 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]; 163 164 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; 170} 171 172#ifdef CONFIG_MCA 173 174/* 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 } 179 180#define MCA_01BB_IRQS { 3, 5, 11, 14 } 181 182/* CARD ID 004f */ 183#define MCA_004F_IO_PORTS { 0x0000, 0x0200, 0x0300, 0x0400, 0x0500, 0x0600 } 184#define MCA_004F_IRQS { 5, 9, 14 } 185 186static short sim710_mca_id_table[] = { 0x01bb, 0x01ba, 0x004f, 0}; 187 188static __init int 189sim710_mca_probe(struct device *dev) 190{ 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; 203 204 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); 207 208 /* 209 * 01BB & 01BA port base by bits 7,6,5,4,3,2 in pos[2] 210 * 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 222 * 223 * 00F4 port base by bits 3,2,1 in pos[0] 224 * 225 * 000 <disabled> 001 0x200 226 * 010 0x300 011 0x400 227 * 100 0x500 101 0x600 228 * 229 * 01BB & 01BA IRQ is specified in pos[0] bits 7 and 6: 230 * 231 * 00 3 10 11 232 * 01 5 11 14 233 * 234 * 00F4 IRQ specified by bits 6,5,4 in pos[0] 235 * 236 * 100 5 101 9 237 * 110 14 238 */ 239 240 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)]; 244 245 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; 258 } 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); 263 264 return sim710_probe_common(dev, base, irq_vector, clock, 265 0, id_array[slot]); 266} 267 268static 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), 275 }, 276}; 277 278#endif /* CONFIG_MCA */ 279 280#ifdef CONFIG_EISA 281static struct eisa_device_id sim710_eisa_ids[] = { 282 { "CPQ4410" }, 283 { "CPQ4411" }, 284 { "HWP0C80" }, 285 { "" } 286}; 287MODULE_DEVICE_TABLE(eisa, sim710_eisa_ids); 288 289static __init int 290sim710_eisa_probe(struct device *dev) 291{ 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; 299 300 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; 304 305 val = inb(io_addr + 0x4); 306 scsi_id = ffs(val) - 1; 307 308 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; 311 } 312 } else { 313 eisa_irqs = eisa_cpq_irqs; 314 irq_index = inb(io_addr + 0xc88) & 0x07; 315 } 316 317 if(irq_index >= strlen(eisa_irqs)) { 318 printk("sim710.c: irq nasty\n"); 319 return -ENODEV; 320 } 321 322 irq = eisa_irqs[irq_index]; 323 324 return sim710_probe_common(dev, io_addr, irq, 50, 325 differential, scsi_id); 326} 327 328static 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), 334 }, 335}; 336#endif /* CONFIG_EISA */ 337 338static int __init sim710_init(void) 339{ 340 int err = -ENODEV; 341 342#ifdef MODULE 343 if (sim710) 344 param_setup(sim710); 345#endif 346 347#ifdef CONFIG_MCA 348 err = mca_register_driver(&sim710_mca_driver); 349#endif 350 351#ifdef CONFIG_EISA 352 err = eisa_driver_register(&sim710_eisa_driver); 353#endif 354 355 return 0; 356} 357 358static void __exit sim710_exit(void) 359{ 360#ifdef CONFIG_MCA 361 if (MCA_bus) 362 mca_unregister_driver(&sim710_mca_driver); 363#endif 364 365#ifdef CONFIG_EISA 366 eisa_driver_unregister(&sim710_eisa_driver); 367#endif 368} 369 370module_init(sim710_init); 371module_exit(sim710_exit); 372