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1 /*
2  * Initio A100 device driver for Linux.
3  *
4  * Copyright (c) 1994-1998 Initio Corporation
5  * Copyright (c) 2003-2004 Christoph Hellwig
6  * All rights reserved.
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2, or (at your option)
11  * any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; see the file COPYING.  If not, write to
20  * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
26  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34
35 /*
36  * Revision History:
37  * 07/02/98 hl  - v.91n Initial drivers.
38  * 09/14/98 hl - v1.01 Support new Kernel.
39  * 09/22/98 hl - v1.01a Support reset.
40  * 09/24/98 hl - v1.01b Fixed reset.
41  * 10/05/98 hl - v1.02 split the source code and release.
42  * 12/19/98 bv - v1.02a Use spinlocks for 2.1.95 and up
43  * 01/31/99 bv - v1.02b Use mdelay instead of waitForPause
44  * 08/08/99 bv - v1.02c Use waitForPause again.
45  * 06/25/02 Doug Ledford <dledford@redhat.com> - v1.02d
46  *          - Remove limit on number of controllers
47  *          - Port to DMA mapping API
48  *          - Clean up interrupt handler registration
49  *          - Fix memory leaks
50  *          - Fix allocation of scsi host structs and private data
51  * 11/18/03 Christoph Hellwig <hch@lst.de>
52  *          - Port to new probing API
53  *          - Fix some more leaks in init failure cases
54  * 9/28/04 Christoph Hellwig <hch@lst.de>
55  *          - merge the two source files
56  *          - remove internal queueing code
57  * 14/06/07 Alan Cox <alan@redhat.com>
58  *       - Grand cleanup and Linuxisation
59  */
60
61 #include <linux/module.h>
62 #include <linux/errno.h>
63 #include <linux/delay.h>
64 #include <linux/interrupt.h>
65 #include <linux/pci.h>
66 #include <linux/init.h>
67 #include <linux/blkdev.h>
68 #include <linux/spinlock.h>
69 #include <linux/kernel.h>
70 #include <linux/string.h>
71 #include <linux/ioport.h>
72 #include <linux/slab.h>
73 #include <linux/dma-mapping.h>
74
75 #include <asm/io.h>
76 #include <asm/irq.h>
77
78 #include <scsi/scsi.h>
79 #include <scsi/scsi_cmnd.h>
80 #include <scsi/scsi_device.h>
81 #include <scsi/scsi_host.h>
82
83 #include "a100u2w.h"
84
85
86 static struct orc_scb *__orc_alloc_scb(struct orc_host * host);
87 static void inia100_scb_handler(struct orc_host *host, struct orc_scb *scb);
88
89 static struct orc_nvram nvram, *nvramp = &nvram;
90
91 static u8 default_nvram[64] =
92 {
93 /*----------header -------------*/
94         0x01,                   /* 0x00: Sub System Vendor ID 0 */
95         0x11,                   /* 0x01: Sub System Vendor ID 1 */
96         0x60,                   /* 0x02: Sub System ID 0        */
97         0x10,                   /* 0x03: Sub System ID 1        */
98         0x00,                   /* 0x04: SubClass               */
99         0x01,                   /* 0x05: Vendor ID 0            */
100         0x11,                   /* 0x06: Vendor ID 1            */
101         0x60,                   /* 0x07: Device ID 0            */
102         0x10,                   /* 0x08: Device ID 1            */
103         0x00,                   /* 0x09: Reserved               */
104         0x00,                   /* 0x0A: Reserved               */
105         0x01,                   /* 0x0B: Revision of Data Structure     */
106                                 /* -- Host Adapter Structure --- */
107         0x01,                   /* 0x0C: Number Of SCSI Channel */
108         0x01,                   /* 0x0D: BIOS Configuration 1   */
109         0x00,                   /* 0x0E: BIOS Configuration 2   */
110         0x00,                   /* 0x0F: BIOS Configuration 3   */
111                                 /* --- SCSI Channel 0 Configuration --- */
112         0x07,                   /* 0x10: H/A ID                 */
113         0x83,                   /* 0x11: Channel Configuration  */
114         0x20,                   /* 0x12: MAX TAG per target     */
115         0x0A,                   /* 0x13: SCSI Reset Recovering time     */
116         0x00,                   /* 0x14: Channel Configuration4 */
117         0x00,                   /* 0x15: Channel Configuration5 */
118                                 /* SCSI Channel 0 Target Configuration  */
119                                 /* 0x16-0x25                    */
120         0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8,
121         0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8,
122                                 /* --- SCSI Channel 1 Configuration --- */
123         0x07,                   /* 0x26: H/A ID                 */
124         0x83,                   /* 0x27: Channel Configuration  */
125         0x20,                   /* 0x28: MAX TAG per target     */
126         0x0A,                   /* 0x29: SCSI Reset Recovering time     */
127         0x00,                   /* 0x2A: Channel Configuration4 */
128         0x00,                   /* 0x2B: Channel Configuration5 */
129                                 /* SCSI Channel 1 Target Configuration  */
130                                 /* 0x2C-0x3B                    */
131         0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8,
132         0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8, 0xC8,
133         0x00,                   /* 0x3C: Reserved               */
134         0x00,                   /* 0x3D: Reserved               */
135         0x00,                   /* 0x3E: Reserved               */
136         0x00                    /* 0x3F: Checksum               */
137 };
138
139
140 static u8 wait_chip_ready(struct orc_host * host)
141 {
142         int i;
143
144         for (i = 0; i < 10; i++) {      /* Wait 1 second for report timeout     */
145                 if (inb(host->base + ORC_HCTRL) & HOSTSTOP)     /* Wait HOSTSTOP set */
146                         return 1;
147                 mdelay(100);
148         }
149         return 0;
150 }
151
152 static u8 wait_firmware_ready(struct orc_host * host)
153 {
154         int i;
155
156         for (i = 0; i < 10; i++) {      /* Wait 1 second for report timeout     */
157                 if (inb(host->base + ORC_HSTUS) & RREADY)               /* Wait READY set */
158                         return 1;
159                 mdelay(100);    /* wait 100ms before try again  */
160         }
161         return 0;
162 }
163
164 /***************************************************************************/
165 static u8 wait_scsi_reset_done(struct orc_host * host)
166 {
167         int i;
168
169         for (i = 0; i < 10; i++) {      /* Wait 1 second for report timeout     */
170                 if (!(inb(host->base + ORC_HCTRL) & SCSIRST))   /* Wait SCSIRST done */
171                         return 1;
172                 mdelay(100);    /* wait 100ms before try again  */
173         }
174         return 0;
175 }
176
177 /***************************************************************************/
178 static u8 wait_HDO_off(struct orc_host * host)
179 {
180         int i;
181
182         for (i = 0; i < 10; i++) {      /* Wait 1 second for report timeout     */
183                 if (!(inb(host->base + ORC_HCTRL) & HDO))               /* Wait HDO off */
184                         return 1;
185                 mdelay(100);    /* wait 100ms before try again  */
186         }
187         return 0;
188 }
189
190 /***************************************************************************/
191 static u8 wait_hdi_set(struct orc_host * host, u8 * data)
192 {
193         int i;
194
195         for (i = 0; i < 10; i++) {      /* Wait 1 second for report timeout     */
196                 if ((*data = inb(host->base + ORC_HSTUS)) & HDI)
197                         return 1;       /* Wait HDI set */
198                 mdelay(100);    /* wait 100ms before try again  */
199         }
200         return 0;
201 }
202
203 /***************************************************************************/
204 static unsigned short orc_read_fwrev(struct orc_host * host)
205 {
206         u16 version;
207         u8 data;
208
209         outb(ORC_CMD_VERSION, host->base + ORC_HDATA);
210         outb(HDO, host->base + ORC_HCTRL);
211         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
212                 return 0;
213
214         if (wait_hdi_set(host, &data) == 0)     /* Wait HDI set   */
215                 return 0;
216         version = inb(host->base + ORC_HDATA);
217         outb(data, host->base + ORC_HSTUS);     /* Clear HDI            */
218
219         if (wait_hdi_set(host, &data) == 0)     /* Wait HDI set   */
220                 return 0;
221         version |= inb(host->base + ORC_HDATA) << 8;
222         outb(data, host->base + ORC_HSTUS);     /* Clear HDI            */
223
224         return version;
225 }
226
227 /***************************************************************************/
228 static u8 orc_nv_write(struct orc_host * host, unsigned char address, unsigned char value)
229 {
230         outb(ORC_CMD_SET_NVM, host->base + ORC_HDATA);  /* Write command */
231         outb(HDO, host->base + ORC_HCTRL);
232         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
233                 return 0;
234
235         outb(address, host->base + ORC_HDATA);  /* Write address */
236         outb(HDO, host->base + ORC_HCTRL);
237         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
238                 return 0;
239
240         outb(value, host->base + ORC_HDATA);    /* Write value  */
241         outb(HDO, host->base + ORC_HCTRL);
242         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
243                 return 0;
244
245         return 1;
246 }
247
248 /***************************************************************************/
249 static u8 orc_nv_read(struct orc_host * host, u8 address, u8 *ptr)
250 {
251         unsigned char data;
252
253         outb(ORC_CMD_GET_NVM, host->base + ORC_HDATA);  /* Write command */
254         outb(HDO, host->base + ORC_HCTRL);
255         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
256                 return 0;
257
258         outb(address, host->base + ORC_HDATA);  /* Write address */
259         outb(HDO, host->base + ORC_HCTRL);
260         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
261                 return 0;
262
263         if (wait_hdi_set(host, &data) == 0)     /* Wait HDI set   */
264                 return 0;
265         *ptr = inb(host->base + ORC_HDATA);
266         outb(data, host->base + ORC_HSTUS);     /* Clear HDI    */
267
268         return 1;
269
270 }
271
272 /**
273  *      orc_exec_sb             -       Queue an SCB with the HA
274  *      @host: host adapter the SCB belongs to
275  *      @scb: SCB to queue for execution
276  */
277
278 static void orc_exec_scb(struct orc_host * host, struct orc_scb * scb)
279 {
280         scb->status = ORCSCB_POST;
281         outb(scb->scbidx, host->base + ORC_PQUEUE);
282 }
283
284
285 /**
286  *      se2_rd_all      -       read SCSI parameters from EEPROM
287  *      @host: Host whose EEPROM is being loaded
288  *
289  *      Read SCSI H/A configuration parameters from serial EEPROM
290  */
291
292 static int se2_rd_all(struct orc_host * host)
293 {
294         int i;
295         u8 *np, chksum = 0;
296
297         np = (u8 *) nvramp;
298         for (i = 0; i < 64; i++, np++) {        /* <01> */
299                 if (orc_nv_read(host, (u8) i, np) == 0)
300                         return -1;
301         }
302
303         /*------ Is ckecksum ok ? ------*/
304         np = (u8 *) nvramp;
305         for (i = 0; i < 63; i++)
306                 chksum += *np++;
307
308         if (nvramp->CheckSum != (u8) chksum)
309                 return -1;
310         return 1;
311 }
312
313 /**
314  *      se2_update_all          -       update the EEPROM
315  *      @host: Host whose EEPROM is being updated
316  *
317  *      Update changed bytes in the EEPROM image.
318  */
319
320 static void se2_update_all(struct orc_host * host)
321 {                               /* setup default pattern  */
322         int i;
323         u8 *np, *np1, chksum = 0;
324
325         /* Calculate checksum first   */
326         np = (u8 *) default_nvram;
327         for (i = 0; i < 63; i++)
328                 chksum += *np++;
329         *np = chksum;
330
331         np = (u8 *) default_nvram;
332         np1 = (u8 *) nvramp;
333         for (i = 0; i < 64; i++, np++, np1++) {
334                 if (*np != *np1)
335                         orc_nv_write(host, (u8) i, *np);
336         }
337 }
338
339 /**
340  *      read_eeprom             -       load EEPROM
341  *      @host: Host EEPROM to read
342  *
343  *      Read the EEPROM for a given host. If it is invalid or fails
344  *      the restore the defaults and use them.
345  */
346
347 static void read_eeprom(struct orc_host * host)
348 {
349         if (se2_rd_all(host) != 1) {
350                 se2_update_all(host);   /* setup default pattern        */
351                 se2_rd_all(host);       /* load again                   */
352         }
353 }
354
355
356 /**
357  *      orc_load_firmware       -       initialise firmware
358  *      @host: Host to set up
359  *
360  *      Load the firmware from the EEPROM into controller SRAM. This
361  *      is basically a 4K block copy and then a 4K block read to check
362  *      correctness. The rest is convulted by the indirect interfaces
363  *      in the hardware
364  */
365
366 static u8 orc_load_firmware(struct orc_host * host)
367 {
368         u32 data32;
369         u16 bios_addr;
370         u16 i;
371         u8 *data32_ptr, data;
372
373
374         /* Set up the EEPROM for access */
375
376         data = inb(host->base + ORC_GCFG);
377         outb(data | EEPRG, host->base + ORC_GCFG);      /* Enable EEPROM programming */
378         outb(0x00, host->base + ORC_EBIOSADR2);
379         outw(0x0000, host->base + ORC_EBIOSADR0);
380         if (inb(host->base + ORC_EBIOSDATA) != 0x55) {
381                 outb(data, host->base + ORC_GCFG);      /* Disable EEPROM programming */
382                 return 0;
383         }
384         outw(0x0001, host->base + ORC_EBIOSADR0);
385         if (inb(host->base + ORC_EBIOSDATA) != 0xAA) {
386                 outb(data, host->base + ORC_GCFG);      /* Disable EEPROM programming */
387                 return 0;
388         }
389
390         outb(PRGMRST | DOWNLOAD, host->base + ORC_RISCCTL);     /* Enable SRAM programming */
391         data32_ptr = (u8 *) & data32;
392         data32 = cpu_to_le32(0);                /* Initial FW address to 0 */
393         outw(0x0010, host->base + ORC_EBIOSADR0);
394         *data32_ptr = inb(host->base + ORC_EBIOSDATA);          /* Read from BIOS */
395         outw(0x0011, host->base + ORC_EBIOSADR0);
396         *(data32_ptr + 1) = inb(host->base + ORC_EBIOSDATA);    /* Read from BIOS */
397         outw(0x0012, host->base + ORC_EBIOSADR0);
398         *(data32_ptr + 2) = inb(host->base + ORC_EBIOSDATA);    /* Read from BIOS */
399         outw(*(data32_ptr + 2), host->base + ORC_EBIOSADR2);
400         outl(le32_to_cpu(data32), host->base + ORC_FWBASEADR);          /* Write FW address */
401
402         /* Copy the code from the BIOS to the SRAM */
403
404         udelay(500);    /* Required on Sun Ultra 5 ... 350 -> failures */
405         bios_addr = (u16) le32_to_cpu(data32);  /* FW code locate at BIOS address + ? */
406         for (i = 0, data32_ptr = (u8 *) & data32;       /* Download the code    */
407              i < 0x1000;        /* Firmware code size = 4K      */
408              i++, bios_addr++) {
409                 outw(bios_addr, host->base + ORC_EBIOSADR0);
410                 *data32_ptr++ = inb(host->base + ORC_EBIOSDATA);        /* Read from BIOS */
411                 if ((i % 4) == 3) {
412                         outl(le32_to_cpu(data32), host->base + ORC_RISCRAM);    /* Write every 4 bytes */
413                         data32_ptr = (u8 *) & data32;
414                 }
415         }
416
417         /* Go back and check they match */
418
419         outb(PRGMRST | DOWNLOAD, host->base + ORC_RISCCTL);     /* Reset program count 0 */
420         bios_addr -= 0x1000;    /* Reset the BIOS adddress      */
421         for (i = 0, data32_ptr = (u8 *) & data32;       /* Check the code       */
422              i < 0x1000;        /* Firmware code size = 4K      */
423              i++, bios_addr++) {
424                 outw(bios_addr, host->base + ORC_EBIOSADR0);
425                 *data32_ptr++ = inb(host->base + ORC_EBIOSDATA);        /* Read from BIOS */
426                 if ((i % 4) == 3) {
427                         if (inl(host->base + ORC_RISCRAM) != le32_to_cpu(data32)) {
428                                 outb(PRGMRST, host->base + ORC_RISCCTL);        /* Reset program to 0 */
429                                 outb(data, host->base + ORC_GCFG);      /*Disable EEPROM programming */
430                                 return 0;
431                         }
432                         data32_ptr = (u8 *) & data32;
433                 }
434         }
435
436         /* Success */
437         outb(PRGMRST, host->base + ORC_RISCCTL);        /* Reset program to 0   */
438         outb(data, host->base + ORC_GCFG);      /* Disable EEPROM programming */
439         return 1;
440 }
441
442 /***************************************************************************/
443 static void setup_SCBs(struct orc_host * host)
444 {
445         struct orc_scb *scb;
446         int i;
447         struct orc_extended_scb *escb;
448         dma_addr_t escb_phys;
449
450         /* Setup SCB base and SCB Size registers */
451         outb(ORC_MAXQUEUE, host->base + ORC_SCBSIZE);   /* Total number of SCBs */
452         /* SCB base address 0      */
453         outl(host->scb_phys, host->base + ORC_SCBBASE0);
454         /* SCB base address 1      */
455         outl(host->scb_phys, host->base + ORC_SCBBASE1);
456
457         /* setup scatter list address with one buffer */
458         scb = host->scb_virt;
459         escb = host->escb_virt;
460
461         for (i = 0; i < ORC_MAXQUEUE; i++) {
462                 escb_phys = (host->escb_phys + (sizeof(struct orc_extended_scb) * i));
463                 scb->sg_addr = cpu_to_le32((u32) escb_phys);
464                 scb->sense_addr = cpu_to_le32((u32) escb_phys);
465                 scb->escb = escb;
466                 scb->scbidx = i;
467                 scb++;
468                 escb++;
469         }
470 }
471
472 /**
473  *      init_alloc_map          -       initialise allocation map
474  *      @host: host map to configure
475  *
476  *      Initialise the allocation maps for this device. If the device
477  *      is not quiescent the caller must hold the allocation lock
478  */
479
480 static void init_alloc_map(struct orc_host * host)
481 {
482         u8 i, j;
483
484         for (i = 0; i < MAX_CHANNELS; i++) {
485                 for (j = 0; j < 8; j++) {
486                         host->allocation_map[i][j] = 0xffffffff;
487                 }
488         }
489 }
490
491 /**
492  *      init_orchid             -       initialise the host adapter
493  *      @host:host adapter to initialise
494  *
495  *      Initialise the controller and if neccessary load the firmware.
496  *
497  *      Returns -1 if the initialisation fails.
498  */
499
500 static int init_orchid(struct orc_host * host)
501 {
502         u8 *ptr;
503         u16 revision;
504         u8 i;
505
506         init_alloc_map(host);
507         outb(0xFF, host->base + ORC_GIMSK);     /* Disable all interrupts */
508
509         if (inb(host->base + ORC_HSTUS) & RREADY) {     /* Orchid is ready */
510                 revision = orc_read_fwrev(host);
511                 if (revision == 0xFFFF) {
512                         outb(DEVRST, host->base + ORC_HCTRL);   /* Reset Host Adapter   */
513                         if (wait_chip_ready(host) == 0)
514                                 return -1;
515                         orc_load_firmware(host);        /* Download FW                  */
516                         setup_SCBs(host);       /* Setup SCB base and SCB Size registers */
517                         outb(0x00, host->base + ORC_HCTRL);     /* clear HOSTSTOP       */
518                         if (wait_firmware_ready(host) == 0)
519                                 return -1;
520                         /* Wait for firmware ready     */
521                 } else {
522                         setup_SCBs(host);       /* Setup SCB base and SCB Size registers */
523                 }
524         } else {                /* Orchid is not Ready          */
525                 outb(DEVRST, host->base + ORC_HCTRL);   /* Reset Host Adapter   */
526                 if (wait_chip_ready(host) == 0)
527                         return -1;
528                 orc_load_firmware(host);        /* Download FW                  */
529                 setup_SCBs(host);       /* Setup SCB base and SCB Size registers */
530                 outb(HDO, host->base + ORC_HCTRL);      /* Do Hardware Reset &  */
531
532                 /*     clear HOSTSTOP  */
533                 if (wait_firmware_ready(host) == 0)             /* Wait for firmware ready      */
534                         return -1;
535         }
536
537         /* Load an EEProm copy into RAM */
538         /* Assumes single threaded at this point */
539         read_eeprom(host);
540
541         if (nvramp->revision != 1)
542                 return -1;
543
544         host->scsi_id = nvramp->scsi_id;
545         host->BIOScfg = nvramp->BIOSConfig1;
546         host->max_targets = MAX_TARGETS;
547         ptr = (u8 *) & (nvramp->Target00Config);
548         for (i = 0; i < 16; ptr++, i++) {
549                 host->target_flag[i] = *ptr;
550                 host->max_tags[i] = ORC_MAXTAGS;
551         }
552
553         if (nvramp->SCSI0Config & NCC_BUSRESET)
554                 host->flags |= HCF_SCSI_RESET;
555         outb(0xFB, host->base + ORC_GIMSK);     /* enable RP FIFO interrupt     */
556         return 0;
557 }
558
559 /**
560  *      orc_reset_scsi_bus              -       perform bus reset
561  *      @host: host being reset
562  *
563  *      Perform a full bus reset on the adapter.
564  */
565
566 static int orc_reset_scsi_bus(struct orc_host * host)
567 {                               /* I need Host Control Block Information */
568         unsigned long flags;
569
570         spin_lock_irqsave(&host->allocation_lock, flags);
571
572         init_alloc_map(host);
573         /* reset scsi bus */
574         outb(SCSIRST, host->base + ORC_HCTRL);
575         /* FIXME: We can spend up to a second with the lock held and
576            interrupts off here */
577         if (wait_scsi_reset_done(host) == 0) {
578                 spin_unlock_irqrestore(&host->allocation_lock, flags);
579                 return FAILED;
580         } else {
581                 spin_unlock_irqrestore(&host->allocation_lock, flags);
582                 return SUCCESS;
583         }
584 }
585
586 /**
587  *      orc_device_reset        -       device reset handler
588  *      @host: host to reset
589  *      @cmd: command causing the reset
590  *      @target; target device
591  *
592  *      Reset registers, reset a hanging bus and kill active and disconnected
593  *      commands for target w/o soft reset
594  */
595
596 static int orc_device_reset(struct orc_host * host, struct scsi_cmnd *cmd, unsigned int target)
597 {                               /* I need Host Control Block Information */
598         struct orc_scb *scb;
599         struct orc_extended_scb *escb;
600         struct orc_scb *host_scb;
601         u8 i;
602         unsigned long flags;
603
604         spin_lock_irqsave(&(host->allocation_lock), flags);
605         scb = (struct orc_scb *) NULL;
606         escb = (struct orc_extended_scb *) NULL;
607
608         /* setup scatter list address with one buffer */
609         host_scb = host->scb_virt;
610
611         /* FIXME: is this safe if we then fail to issue the reset or race
612            a completion ? */
613         init_alloc_map(host);
614
615         /* Find the scb corresponding to the command */
616         for (i = 0; i < ORC_MAXQUEUE; i++) {
617                 escb = host_scb->escb;
618                 if (host_scb->status && escb->srb == cmd)
619                         break;
620                 host_scb++;
621         }
622
623         if (i == ORC_MAXQUEUE) {
624                 printk(KERN_ERR "Unable to Reset - No SCB Found\n");
625                 spin_unlock_irqrestore(&(host->allocation_lock), flags);
626                 return FAILED;
627         }
628
629         /* Allocate a new SCB for the reset command to the firmware */
630         if ((scb = __orc_alloc_scb(host)) == NULL) {
631                 /* Can't happen.. */
632                 spin_unlock_irqrestore(&(host->allocation_lock), flags);
633                 return FAILED;
634         }
635
636         /* Reset device is handled by the firmare, we fill in an SCB and
637            fire it at the controller, it does the rest */
638         scb->opcode = ORC_BUSDEVRST;
639         scb->target = target;
640         scb->hastat = 0;
641         scb->tastat = 0;
642         scb->status = 0x0;
643         scb->link = 0xFF;
644         scb->reserved0 = 0;
645         scb->reserved1 = 0;
646         scb->xferlen = cpu_to_le32(0);
647         scb->sg_len = cpu_to_le32(0);
648
649         escb->srb = NULL;
650         escb->srb = cmd;
651         orc_exec_scb(host, scb);        /* Start execute SCB            */
652         spin_unlock_irqrestore(&host->allocation_lock, flags);
653         return SUCCESS;
654 }
655
656 /**
657  *      __orc_alloc_scb         -               allocate an SCB
658  *      @host: host to allocate from
659  *
660  *      Allocate an SCB and return a pointer to the SCB object. NULL
661  *      is returned if no SCB is free. The caller must already hold
662  *      the allocator lock at this point.
663  */
664
665
666 static struct orc_scb *__orc_alloc_scb(struct orc_host * host)
667 {
668         u8 channel;
669         unsigned long idx;
670         u8 index;
671         u8 i;
672
673         channel = host->index;
674         for (i = 0; i < 8; i++) {
675                 for (index = 0; index < 32; index++) {
676                         if ((host->allocation_map[channel][i] >> index) & 0x01) {
677                                 host->allocation_map[channel][i] &= ~(1 << index);
678                                 idx = index + 32 * i;
679                                 /*
680                                  * Translate the index to a structure instance
681                                  */
682                                 return host->scb_virt + idx;
683                         }
684                 }
685         }
686         return NULL;
687 }
688
689 /**
690  *      orc_alloc_scb           -               allocate an SCB
691  *      @host: host to allocate from
692  *
693  *      Allocate an SCB and return a pointer to the SCB object. NULL
694  *      is returned if no SCB is free.
695  */
696
697 static struct orc_scb *orc_alloc_scb(struct orc_host * host)
698 {
699         struct orc_scb *scb;
700         unsigned long flags;
701
702         spin_lock_irqsave(&host->allocation_lock, flags);
703         scb = __orc_alloc_scb(host);
704         spin_unlock_irqrestore(&host->allocation_lock, flags);
705         return scb;
706 }
707
708 /**
709  *      orc_release_scb                 -       release an SCB
710  *      @host: host owning the SCB
711  *      @scb: SCB that is now free
712  *
713  *      Called to return a completed SCB to the allocation pool. Before
714  *      calling the SCB must be out of use on both the host and the HA.
715  */
716
717 static void orc_release_scb(struct orc_host *host, struct orc_scb *scb)
718 {
719         unsigned long flags;
720         u8 index, i, channel;
721
722         spin_lock_irqsave(&(host->allocation_lock), flags);
723         channel = host->index;  /* Channel */
724         index = scb->scbidx;
725         i = index / 32;
726         index %= 32;
727         host->allocation_map[channel][i] |= (1 << index);
728         spin_unlock_irqrestore(&(host->allocation_lock), flags);
729 }
730
731 /**
732  *      orchid_abort_scb        -       abort a command
733  *
734  *      Abort a queued command that has been passed to the firmware layer
735  *      if possible. This is all handled by the firmware. We aks the firmware
736  *      and it either aborts the command or fails
737  */
738
739 static int orchid_abort_scb(struct orc_host * host, struct orc_scb * scb)
740 {
741         unsigned char data, status;
742
743         outb(ORC_CMD_ABORT_SCB, host->base + ORC_HDATA);        /* Write command */
744         outb(HDO, host->base + ORC_HCTRL);
745         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
746                 return 0;
747
748         outb(scb->scbidx, host->base + ORC_HDATA);      /* Write address */
749         outb(HDO, host->base + ORC_HCTRL);
750         if (wait_HDO_off(host) == 0)    /* Wait HDO off   */
751                 return 0;
752
753         if (wait_hdi_set(host, &data) == 0)     /* Wait HDI set   */
754                 return 0;
755         status = inb(host->base + ORC_HDATA);
756         outb(data, host->base + ORC_HSTUS);     /* Clear HDI    */
757
758         if (status == 1)        /* 0 - Successfully               */
759                 return 0;       /* 1 - Fail                     */
760         return 1;
761 }
762
763 static int inia100_abort_cmd(struct orc_host * host, struct scsi_cmnd *cmd)
764 {
765         struct orc_extended_scb *escb;
766         struct orc_scb *scb;
767         u8 i;
768         unsigned long flags;
769
770         spin_lock_irqsave(&(host->allocation_lock), flags);
771
772         scb = host->scb_virt;
773
774         /* Walk the queue until we find the SCB that belongs to the command
775            block. This isn't a performance critical path so a walk in the park
776            here does no harm */
777
778         for (i = 0; i < ORC_MAXQUEUE; i++, scb++) {
779                 escb = scb->escb;
780                 if (scb->status && escb->srb == cmd) {
781                         if (scb->tag_msg == 0) {
782                                 goto out;
783                         } else {
784                                 /* Issue an ABORT to the firmware */
785                                 if (orchid_abort_scb(host, scb)) {
786                                         escb->srb = NULL;
787                                         spin_unlock_irqrestore(&host->allocation_lock, flags);
788                                         return SUCCESS;
789                                 } else
790                                         goto out;
791                         }
792                 }
793         }
794 out:
795         spin_unlock_irqrestore(&host->allocation_lock, flags);
796         return FAILED;
797 }
798
799 /**
800  *      orc_interrupt           -       IRQ processing
801  *      @host: Host causing the interrupt
802  *
803  *      This function is called from the IRQ handler and protected
804  *      by the host lock. While the controller reports that there are
805  *      scb's for processing we pull them off the controller, turn the
806  *      index into a host address pointer to the scb and call the scb
807  *      handler.
808  *
809  *      Returns IRQ_HANDLED if any SCBs were processed, IRQ_NONE otherwise
810  */
811
812 static irqreturn_t orc_interrupt(struct orc_host * host)
813 {
814         u8 scb_index;
815         struct orc_scb *scb;
816
817         /* Check if we have an SCB queued for servicing */
818         if (inb(host->base + ORC_RQUEUECNT) == 0)
819                 return IRQ_NONE;
820
821         do {
822                 /* Get the SCB index of the SCB to service */
823                 scb_index = inb(host->base + ORC_RQUEUE);
824
825                 /* Translate it back to a host pointer */
826                 scb = (struct orc_scb *) ((unsigned long) host->scb_virt + (unsigned long) (sizeof(struct orc_scb) * scb_index));
827                 scb->status = 0x0;
828                 /* Process the SCB */
829                 inia100_scb_handler(host, scb);
830         } while (inb(host->base + ORC_RQUEUECNT));
831         return IRQ_HANDLED;
832 }                               /* End of I1060Interrupt() */
833
834 /**
835  *      inia100_build_scb       -       build SCB
836  *      @host: host owing the control block
837  *      @scb: control block to use
838  *      @cmd: Mid layer command
839  *
840  *      Build a host adapter control block from the SCSI mid layer command
841  */
842
843 static int inia100_build_scb(struct orc_host * host, struct orc_scb * scb, struct scsi_cmnd * cmd)
844 {                               /* Create corresponding SCB     */
845         struct scatterlist *sg;
846         struct orc_sgent *sgent;                /* Pointer to SG list           */
847         int i, count_sg;
848         struct orc_extended_scb *escb;
849
850         /* Links between the escb, scb and Linux scsi midlayer cmd */
851         escb = scb->escb;
852         escb->srb = cmd;
853         sgent = NULL;
854
855         /* Set up the SCB to do a SCSI command block */
856         scb->opcode = ORC_EXECSCSI;
857         scb->flags = SCF_NO_DCHK;       /* Clear done bit               */
858         scb->target = cmd->device->id;
859         scb->lun = cmd->device->lun;
860         scb->reserved0 = 0;
861         scb->reserved1 = 0;
862         scb->sg_len = cpu_to_le32(0);
863
864         scb->xferlen = cpu_to_le32((u32) scsi_bufflen(cmd));
865         sgent = (struct orc_sgent *) & escb->sglist[0];
866
867         count_sg = scsi_dma_map(cmd);
868         if (count_sg < 0)
869                 return count_sg;
870         BUG_ON(count_sg > TOTAL_SG_ENTRY);
871
872         /* Build the scatter gather lists */
873         if (count_sg) {
874                 scb->sg_len = cpu_to_le32((u32) (count_sg * 8));
875                 scsi_for_each_sg(cmd, sg, count_sg, i) {
876                         sgent->base = cpu_to_le32((u32) sg_dma_address(sg));
877                         sgent->length = cpu_to_le32((u32) sg_dma_len(sg));
878                         sgent++;
879                 }
880         } else {
881                 scb->sg_len = cpu_to_le32(0);
882                 sgent->base = cpu_to_le32(0);
883                 sgent->length = cpu_to_le32(0);
884         }
885         scb->sg_addr = (u32) scb->sense_addr;   /* sense_addr is already little endian */
886         scb->hastat = 0;
887         scb->tastat = 0;
888         scb->link = 0xFF;
889         scb->sense_len = SENSE_SIZE;
890         scb->cdb_len = cmd->cmd_len;
891         if (scb->cdb_len >= IMAX_CDB) {
892                 printk("max cdb length= %x\b", cmd->cmd_len);
893                 scb->cdb_len = IMAX_CDB;
894         }
895         scb->ident = cmd->device->lun | DISC_ALLOW;
896         if (cmd->device->tagged_supported) {    /* Tag Support                  */
897                 scb->tag_msg = SIMPLE_QUEUE_TAG;        /* Do simple tag only   */
898         } else {
899                 scb->tag_msg = 0;       /* No tag support               */
900         }
901         memcpy(scb->cdb, cmd->cmnd, scb->cdb_len);
902         return 0;
903 }
904
905 /**
906  *      inia100_queue           -       queue command with host
907  *      @cmd: Command block
908  *      @done: Completion function
909  *
910  *      Called by the mid layer to queue a command. Process the command
911  *      block, build the host specific scb structures and if there is room
912  *      queue the command down to the controller
913  */
914
915 static int inia100_queue(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *))
916 {
917         struct orc_scb *scb;
918         struct orc_host *host;          /* Point to Host adapter control block */
919
920         host = (struct orc_host *) cmd->device->host->hostdata;
921         cmd->scsi_done = done;
922         /* Get free SCSI control block  */
923         if ((scb = orc_alloc_scb(host)) == NULL)
924                 return SCSI_MLQUEUE_HOST_BUSY;
925
926         if (inia100_build_scb(host, scb, cmd)) {
927                 orc_release_scb(host, scb);
928                 return SCSI_MLQUEUE_HOST_BUSY;
929         }
930         orc_exec_scb(host, scb);        /* Start execute SCB            */
931         return 0;
932 }
933
934 /*****************************************************************************
935  Function name  : inia100_abort
936  Description    : Abort a queued command.
937                          (commands that are on the bus can't be aborted easily)
938  Input          : host  -       Pointer to host adapter structure
939  Output         : None.
940  Return         : pSRB  -       Pointer to SCSI request block.
941 *****************************************************************************/
942 static int inia100_abort(struct scsi_cmnd * cmd)
943 {
944         struct orc_host *host;
945
946         host = (struct orc_host *) cmd->device->host->hostdata;
947         return inia100_abort_cmd(host, cmd);
948 }
949
950 /*****************************************************************************
951  Function name  : inia100_reset
952  Description    : Reset registers, reset a hanging bus and
953                   kill active and disconnected commands for target w/o soft reset
954  Input          : host  -       Pointer to host adapter structure
955  Output         : None.
956  Return         : pSRB  -       Pointer to SCSI request block.
957 *****************************************************************************/
958 static int inia100_bus_reset(struct scsi_cmnd * cmd)
959 {                               /* I need Host Control Block Information */
960         struct orc_host *host;
961         host = (struct orc_host *) cmd->device->host->hostdata;
962         return orc_reset_scsi_bus(host);
963 }
964
965 /*****************************************************************************
966  Function name  : inia100_device_reset
967  Description    : Reset the device
968  Input          : host  -       Pointer to host adapter structure
969  Output         : None.
970  Return         : pSRB  -       Pointer to SCSI request block.
971 *****************************************************************************/
972 static int inia100_device_reset(struct scsi_cmnd * cmd)
973 {                               /* I need Host Control Block Information */
974         struct orc_host *host;
975         host = (struct orc_host *) cmd->device->host->hostdata;
976         return orc_device_reset(host, cmd, scmd_id(cmd));
977
978 }
979
980 /**
981  *      inia100_scb_handler     -       interrupt callback
982  *      @host: Host causing the interrupt
983  *      @scb: SCB the controller returned as needing processing
984  *
985  *      Perform completion processing on a control block. Do the conversions
986  *      from host to SCSI midlayer error coding, save any sense data and
987  *      the complete with the midlayer and recycle the scb.
988  */
989
990 static void inia100_scb_handler(struct orc_host *host, struct orc_scb *scb)
991 {
992         struct scsi_cmnd *cmd;  /* Pointer to SCSI request block */
993         struct orc_extended_scb *escb;
994
995         escb = scb->escb;
996         if ((cmd = (struct scsi_cmnd *) escb->srb) == NULL) {
997                 printk(KERN_ERR "inia100_scb_handler: SRB pointer is empty\n");
998                 orc_release_scb(host, scb);     /* Release SCB for current channel */
999                 return;
1000         }
1001         escb->srb = NULL;
1002
1003         switch (scb->hastat) {
1004         case 0x0:
1005         case 0xa:               /* Linked command complete without error and linked normally */
1006         case 0xb:               /* Linked command complete without error interrupt generated */
1007                 scb->hastat = 0;
1008                 break;
1009
1010         case 0x11:              /* Selection time out-The initiator selection or target
1011                                    reselection was not complete within the SCSI Time out period */
1012                 scb->hastat = DID_TIME_OUT;
1013                 break;
1014
1015         case 0x14:              /* Target bus phase sequence failure-An invalid bus phase or bus
1016                                    phase sequence was requested by the target. The host adapter
1017                                    will generate a SCSI Reset Condition, notifying the host with
1018                                    a SCRD interrupt */
1019                 scb->hastat = DID_RESET;
1020                 break;
1021
1022         case 0x1a:              /* SCB Aborted. 07/21/98 */
1023                 scb->hastat = DID_ABORT;
1024                 break;
1025
1026         case 0x12:              /* Data overrun/underrun-The target attempted to transfer more data
1027                                    than was allocated by the Data Length field or the sum of the
1028                                    Scatter / Gather Data Length fields. */
1029         case 0x13:              /* Unexpected bus free-The target dropped the SCSI BSY at an unexpected time. */
1030         case 0x16:              /* Invalid CCB Operation Code-The first byte of the CCB was invalid. */
1031
1032         default:
1033                 printk(KERN_DEBUG "inia100: %x %x\n", scb->hastat, scb->tastat);
1034                 scb->hastat = DID_ERROR;        /* Couldn't find any better */
1035                 break;
1036         }
1037
1038         if (scb->tastat == 2) { /* Check condition              */
1039                 memcpy((unsigned char *) &cmd->sense_buffer[0],
1040                    (unsigned char *) &escb->sglist[0], SENSE_SIZE);
1041         }
1042         cmd->result = scb->tastat | (scb->hastat << 16);
1043         scsi_dma_unmap(cmd);
1044         cmd->scsi_done(cmd);    /* Notify system DONE           */
1045         orc_release_scb(host, scb);     /* Release SCB for current channel */
1046 }
1047
1048 /**
1049  *      inia100_intr            -       interrupt handler
1050  *      @irqno: Interrupt value
1051  *      @devid: Host adapter
1052  *
1053  *      Entry point for IRQ handling. All the real work is performed
1054  *      by orc_interrupt.
1055  */
1056 static irqreturn_t inia100_intr(int irqno, void *devid)
1057 {
1058         struct Scsi_Host *shost = (struct Scsi_Host *)devid;
1059         struct orc_host *host = (struct orc_host *)shost->hostdata;
1060         unsigned long flags;
1061         irqreturn_t res;
1062
1063         spin_lock_irqsave(shost->host_lock, flags);
1064         res = orc_interrupt(host);
1065         spin_unlock_irqrestore(shost->host_lock, flags);
1066
1067         return res;
1068 }
1069
1070 static struct scsi_host_template inia100_template = {
1071         .proc_name              = "inia100",
1072         .name                   = inia100_REVID,
1073         .queuecommand           = inia100_queue,
1074         .eh_abort_handler       = inia100_abort,
1075         .eh_bus_reset_handler   = inia100_bus_reset,
1076         .eh_device_reset_handler = inia100_device_reset,
1077         .can_queue              = 1,
1078         .this_id                = 1,
1079         .sg_tablesize           = SG_ALL,
1080         .cmd_per_lun            = 1,
1081         .use_clustering         = ENABLE_CLUSTERING,
1082 };
1083
1084 static int __devinit inia100_probe_one(struct pci_dev *pdev,
1085                 const struct pci_device_id *id)
1086 {
1087         struct Scsi_Host *shost;
1088         struct orc_host *host;
1089         unsigned long port, bios;
1090         int error = -ENODEV;
1091         u32 sz;
1092         unsigned long biosaddr;
1093         char *bios_phys;
1094
1095         if (pci_enable_device(pdev))
1096                 goto out;
1097         if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
1098                 printk(KERN_WARNING "Unable to set 32bit DMA "
1099                                     "on inia100 adapter, ignoring.\n");
1100                 goto out_disable_device;
1101         }
1102
1103         pci_set_master(pdev);
1104
1105         port = pci_resource_start(pdev, 0);
1106         if (!request_region(port, 256, "inia100")) {
1107                 printk(KERN_WARNING "inia100: io port 0x%lx, is busy.\n", port);
1108                 goto out_disable_device;
1109         }
1110
1111         /* <02> read from base address + 0x50 offset to get the bios value. */
1112         bios = inw(port + 0x50);
1113
1114
1115         shost = scsi_host_alloc(&inia100_template, sizeof(struct orc_host));
1116         if (!shost)
1117                 goto out_release_region;
1118
1119         host = (struct orc_host *)shost->hostdata;
1120         host->pdev = pdev;
1121         host->base = port;
1122         host->BIOScfg = bios;
1123         spin_lock_init(&host->allocation_lock);
1124
1125         /* Get total memory needed for SCB */
1126         sz = ORC_MAXQUEUE * sizeof(struct orc_scb);
1127         host->scb_virt = pci_alloc_consistent(pdev, sz,
1128                         &host->scb_phys);
1129         if (!host->scb_virt) {
1130                 printk("inia100: SCB memory allocation error\n");
1131                 goto out_host_put;
1132         }
1133         memset(host->scb_virt, 0, sz);
1134
1135         /* Get total memory needed for ESCB */
1136         sz = ORC_MAXQUEUE * sizeof(struct orc_extended_scb);
1137         host->escb_virt = pci_alloc_consistent(pdev, sz,
1138                         &host->escb_phys);
1139         if (!host->escb_virt) {
1140                 printk("inia100: ESCB memory allocation error\n");
1141                 goto out_free_scb_array;
1142         }
1143         memset(host->escb_virt, 0, sz);
1144
1145         biosaddr = host->BIOScfg;
1146         biosaddr = (biosaddr << 4);
1147         bios_phys = phys_to_virt(biosaddr);
1148         if (init_orchid(host)) {        /* Initialize orchid chip */
1149                 printk("inia100: initial orchid fail!!\n");
1150                 goto out_free_escb_array;
1151         }
1152
1153         shost->io_port = host->base;
1154         shost->n_io_port = 0xff;
1155         shost->can_queue = ORC_MAXQUEUE;
1156         shost->unique_id = shost->io_port;
1157         shost->max_id = host->max_targets;
1158         shost->max_lun = 16;
1159         shost->irq = pdev->irq;
1160         shost->this_id = host->scsi_id; /* Assign HCS index */
1161         shost->sg_tablesize = TOTAL_SG_ENTRY;
1162
1163         /* Initial orc chip           */
1164         error = request_irq(pdev->irq, inia100_intr, IRQF_SHARED,
1165                         "inia100", shost);
1166         if (error < 0) {
1167                 printk(KERN_WARNING "inia100: unable to get irq %d\n",
1168                                 pdev->irq);
1169                 goto out_free_escb_array;
1170         }
1171
1172         pci_set_drvdata(pdev, shost);
1173
1174         error = scsi_add_host(shost, &pdev->dev);
1175         if (error)
1176                 goto out_free_irq;
1177
1178         scsi_scan_host(shost);
1179         return 0;
1180
1181 out_free_irq:
1182         free_irq(shost->irq, shost);
1183 out_free_escb_array:
1184         pci_free_consistent(pdev, ORC_MAXQUEUE * sizeof(struct orc_extended_scb),
1185                         host->escb_virt, host->escb_phys);
1186 out_free_scb_array:
1187         pci_free_consistent(pdev, ORC_MAXQUEUE * sizeof(struct orc_scb),
1188                         host->scb_virt, host->scb_phys);
1189 out_host_put:
1190         scsi_host_put(shost);
1191 out_release_region:
1192         release_region(port, 256);
1193 out_disable_device:
1194         pci_disable_device(pdev);
1195 out:
1196         return error;
1197 }
1198
1199 static void __devexit inia100_remove_one(struct pci_dev *pdev)
1200 {
1201         struct Scsi_Host *shost = pci_get_drvdata(pdev);
1202         struct orc_host *host = (struct orc_host *)shost->hostdata;
1203
1204         scsi_remove_host(shost);
1205
1206         free_irq(shost->irq, shost);
1207         pci_free_consistent(pdev, ORC_MAXQUEUE * sizeof(struct orc_extended_scb),
1208                         host->escb_virt, host->escb_phys);
1209         pci_free_consistent(pdev, ORC_MAXQUEUE * sizeof(struct orc_scb),
1210                         host->scb_virt, host->scb_phys);
1211         release_region(shost->io_port, 256);
1212
1213         scsi_host_put(shost);
1214
1215
1216 static struct pci_device_id inia100_pci_tbl[] = {
1217         {PCI_VENDOR_ID_INIT, 0x1060, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1218         {0,}
1219 };
1220 MODULE_DEVICE_TABLE(pci, inia100_pci_tbl);
1221
1222 static struct pci_driver inia100_pci_driver = {
1223         .name           = "inia100",
1224         .id_table       = inia100_pci_tbl,
1225         .probe          = inia100_probe_one,
1226         .remove         = __devexit_p(inia100_remove_one),
1227 };
1228
1229 static int __init inia100_init(void)
1230 {
1231         return pci_register_driver(&inia100_pci_driver);
1232 }
1233
1234 static void __exit inia100_exit(void)
1235 {
1236         pci_unregister_driver(&inia100_pci_driver);
1237 }
1238
1239 MODULE_DESCRIPTION("Initio A100U2W SCSI driver");
1240 MODULE_AUTHOR("Initio Corporation");
1241 MODULE_LICENSE("Dual BSD/GPL");
1242
1243 module_init(inia100_init);
1244 module_exit(inia100_exit);