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-rw-r--r--drivers/char/istallion.c206
1 files changed, 36 insertions, 170 deletions
diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
index ec4e8f121173..2f56bc7d147b 100644
--- a/drivers/char/istallion.c
+++ b/drivers/char/istallion.c
@@ -14,14 +14,6 @@
14 * the Free Software Foundation; either version 2 of the License, or 14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version. 15 * (at your option) any later version.
16 * 16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 */ 17 */
26 18
27/*****************************************************************************/ 19/*****************************************************************************/
@@ -41,6 +33,7 @@
41#include <linux/device.h> 33#include <linux/device.h>
42#include <linux/wait.h> 34#include <linux/wait.h>
43#include <linux/eisa.h> 35#include <linux/eisa.h>
36#include <linux/ctype.h>
44 37
45#include <asm/io.h> 38#include <asm/io.h>
46#include <asm/uaccess.h> 39#include <asm/uaccess.h>
@@ -61,21 +54,10 @@
61#define BRD_BRUMBY4 2 54#define BRD_BRUMBY4 2
62#define BRD_ONBOARD2 3 55#define BRD_ONBOARD2 3
63#define BRD_ONBOARD 4 56#define BRD_ONBOARD 4
64#define BRD_BRUMBY8 5
65#define BRD_BRUMBY16 6
66#define BRD_ONBOARDE 7 57#define BRD_ONBOARDE 7
67#define BRD_ONBOARD32 9
68#define BRD_ONBOARD2_32 10
69#define BRD_ONBOARDRS 11
70#define BRD_EASYIO 20
71#define BRD_ECH 21
72#define BRD_ECHMC 22
73#define BRD_ECP 23 58#define BRD_ECP 23
74#define BRD_ECPE 24 59#define BRD_ECPE 24
75#define BRD_ECPMC 25 60#define BRD_ECPMC 25
76#define BRD_ECHPCI 26
77#define BRD_ECH64PCI 27
78#define BRD_EASYIOPCI 28
79#define BRD_ECPPCI 29 61#define BRD_ECPPCI 29
80 62
81#define BRD_BRUMBY BRD_BRUMBY4 63#define BRD_BRUMBY BRD_BRUMBY4
@@ -128,11 +110,7 @@ typedef struct {
128 int irqtype; 110 int irqtype;
129} stlconf_t; 111} stlconf_t;
130 112
131static stlconf_t stli_brdconf[] = { 113static int stli_nrbrds;
132 /*{ BRD_ECP, 0x2a0, 0, 0xcc000, 0, 0 },*/
133};
134
135static int stli_nrbrds = ARRAY_SIZE(stli_brdconf);
136 114
137/* stli_lock must NOT be taken holding brd_lock */ 115/* stli_lock must NOT be taken holding brd_lock */
138static spinlock_t stli_lock; /* TTY logic lock */ 116static spinlock_t stli_lock; /* TTY logic lock */
@@ -257,18 +235,18 @@ static char *stli_brdnames[] = {
257 "Brumby", 235 "Brumby",
258 "Brumby", 236 "Brumby",
259 "ONboard-EI", 237 "ONboard-EI",
260 (char *) NULL, 238 NULL,
261 "ONboard", 239 "ONboard",
262 "ONboard-MC", 240 "ONboard-MC",
263 "ONboard-MC", 241 "ONboard-MC",
264 (char *) NULL, 242 NULL,
265 (char *) NULL, 243 NULL,
266 (char *) NULL, 244 NULL,
267 (char *) NULL, 245 NULL,
268 (char *) NULL, 246 NULL,
269 (char *) NULL, 247 NULL,
270 (char *) NULL, 248 NULL,
271 (char *) NULL, 249 NULL,
272 "EasyIO", 250 "EasyIO",
273 "EC8/32-AT", 251 "EC8/32-AT",
274 "EC8/32-MC", 252 "EC8/32-MC",
@@ -402,9 +380,6 @@ static int stli_eisamempsize = ARRAY_SIZE(stli_eisamemprobeaddrs);
402/* 380/*
403 * Define the Stallion PCI vendor and device IDs. 381 * Define the Stallion PCI vendor and device IDs.
404 */ 382 */
405#ifndef PCI_VENDOR_ID_STALLION
406#define PCI_VENDOR_ID_STALLION 0x124d
407#endif
408#ifndef PCI_DEVICE_ID_ECRA 383#ifndef PCI_DEVICE_ID_ECRA
409#define PCI_DEVICE_ID_ECRA 0x0004 384#define PCI_DEVICE_ID_ECRA 0x0004
410#endif 385#endif
@@ -616,17 +591,6 @@ static struct pci_driver stli_pcidriver;
616/*****************************************************************************/ 591/*****************************************************************************/
617 592
618/* 593/*
619 * Define some handy local macros...
620 */
621#undef MIN
622#define MIN(a,b) (((a) <= (b)) ? (a) : (b))
623
624#undef TOLOWER
625#define TOLOWER(x) ((((x) >= 'A') && ((x) <= 'Z')) ? ((x) + 0x20) : (x))
626
627/*****************************************************************************/
628
629/*
630 * Prototype all functions in this driver! 594 * Prototype all functions in this driver!
631 */ 595 */
632 596
@@ -844,69 +808,6 @@ module_exit(istallion_module_exit);
844/*****************************************************************************/ 808/*****************************************************************************/
845 809
846/* 810/*
847 * Check for any arguments passed in on the module load command line.
848 */
849
850static void stli_argbrds(void)
851{
852 stlconf_t conf;
853 stlibrd_t *brdp;
854 int i;
855
856 for (i = stli_nrbrds; i < ARRAY_SIZE(stli_brdsp); i++) {
857 memset(&conf, 0, sizeof(conf));
858 if (stli_parsebrd(&conf, stli_brdsp[i]) == 0)
859 continue;
860 if ((brdp = stli_allocbrd()) == NULL)
861 continue;
862 stli_nrbrds = i + 1;
863 brdp->brdnr = i;
864 brdp->brdtype = conf.brdtype;
865 brdp->iobase = conf.ioaddr1;
866 brdp->memaddr = conf.memaddr;
867 stli_brdinit(brdp);
868 }
869}
870
871/*****************************************************************************/
872
873/*
874 * Convert an ascii string number into an unsigned long.
875 */
876
877static unsigned long stli_atol(char *str)
878{
879 unsigned long val;
880 int base, c;
881 char *sp;
882
883 val = 0;
884 sp = str;
885 if ((*sp == '0') && (*(sp+1) == 'x')) {
886 base = 16;
887 sp += 2;
888 } else if (*sp == '0') {
889 base = 8;
890 sp++;
891 } else {
892 base = 10;
893 }
894
895 for (; (*sp != 0); sp++) {
896 c = (*sp > '9') ? (TOLOWER(*sp) - 'a' + 10) : (*sp - '0');
897 if ((c < 0) || (c >= base)) {
898 printk("STALLION: invalid argument %s\n", str);
899 val = 0;
900 break;
901 }
902 val = (val * base) + c;
903 }
904 return(val);
905}
906
907/*****************************************************************************/
908
909/*
910 * Parse the supplied argument string, into the board conf struct. 811 * Parse the supplied argument string, into the board conf struct.
911 */ 812 */
912 813
@@ -919,7 +820,7 @@ static int stli_parsebrd(stlconf_t *confp, char **argp)
919 return 0; 820 return 0;
920 821
921 for (sp = argp[0], i = 0; ((*sp != 0) && (i < 25)); sp++, i++) 822 for (sp = argp[0], i = 0; ((*sp != 0) && (i < 25)); sp++, i++)
922 *sp = TOLOWER(*sp); 823 *sp = tolower(*sp);
923 824
924 for (i = 0; i < ARRAY_SIZE(stli_brdstr); i++) { 825 for (i = 0; i < ARRAY_SIZE(stli_brdstr); i++) {
925 if (strcmp(stli_brdstr[i].name, argp[0]) == 0) 826 if (strcmp(stli_brdstr[i].name, argp[0]) == 0)
@@ -932,9 +833,9 @@ static int stli_parsebrd(stlconf_t *confp, char **argp)
932 833
933 confp->brdtype = stli_brdstr[i].type; 834 confp->brdtype = stli_brdstr[i].type;
934 if (argp[1] != NULL && *argp[1] != 0) 835 if (argp[1] != NULL && *argp[1] != 0)
935 confp->ioaddr1 = stli_atol(argp[1]); 836 confp->ioaddr1 = simple_strtoul(argp[1], NULL, 0);
936 if (argp[2] != NULL && *argp[2] != 0) 837 if (argp[2] != NULL && *argp[2] != 0)
937 confp->memaddr = stli_atol(argp[2]); 838 confp->memaddr = simple_strtoul(argp[2], NULL, 0);
938 return(1); 839 return(1);
939} 840}
940 841
@@ -1451,12 +1352,12 @@ static int stli_write(struct tty_struct *tty, const unsigned char *buf, int coun
1451 stlen = len; 1352 stlen = len;
1452 } 1353 }
1453 1354
1454 len = MIN(len, count); 1355 len = min(len, (unsigned int)count);
1455 count = 0; 1356 count = 0;
1456 shbuf = (char __iomem *) EBRDGETMEMPTR(brdp, portp->txoffset); 1357 shbuf = (char __iomem *) EBRDGETMEMPTR(brdp, portp->txoffset);
1457 1358
1458 while (len > 0) { 1359 while (len > 0) {
1459 stlen = MIN(len, stlen); 1360 stlen = min(len, stlen);
1460 memcpy_toio(shbuf + head, chbuf, stlen); 1361 memcpy_toio(shbuf + head, chbuf, stlen);
1461 chbuf += stlen; 1362 chbuf += stlen;
1462 len -= stlen; 1363 len -= stlen;
@@ -1570,13 +1471,13 @@ static void stli_flushchars(struct tty_struct *tty)
1570 stlen = len; 1471 stlen = len;
1571 } 1472 }
1572 1473
1573 len = MIN(len, cooksize); 1474 len = min(len, cooksize);
1574 count = 0; 1475 count = 0;
1575 shbuf = EBRDGETMEMPTR(brdp, portp->txoffset); 1476 shbuf = EBRDGETMEMPTR(brdp, portp->txoffset);
1576 buf = stli_txcookbuf; 1477 buf = stli_txcookbuf;
1577 1478
1578 while (len > 0) { 1479 while (len > 0) {
1579 stlen = MIN(len, stlen); 1480 stlen = min(len, stlen);
1580 memcpy_toio(shbuf + head, buf, stlen); 1481 memcpy_toio(shbuf + head, buf, stlen);
1581 buf += stlen; 1482 buf += stlen;
1582 len -= stlen; 1483 len -= stlen;
@@ -2412,7 +2313,7 @@ static void stli_read(stlibrd_t *brdp, stliport_t *portp)
2412 while (len > 0) { 2313 while (len > 0) {
2413 unsigned char *cptr; 2314 unsigned char *cptr;
2414 2315
2415 stlen = MIN(len, stlen); 2316 stlen = min(len, stlen);
2416 tty_prepare_flip_string(tty, &cptr, stlen); 2317 tty_prepare_flip_string(tty, &cptr, stlen);
2417 memcpy_fromio(cptr, shbuf + tail, stlen); 2318 memcpy_fromio(cptr, shbuf + tail, stlen);
2418 len -= stlen; 2319 len -= stlen;
@@ -3394,7 +3295,6 @@ static int stli_initecp(stlibrd_t *brdp)
3394 */ 3295 */
3395 switch (brdp->brdtype) { 3296 switch (brdp->brdtype) {
3396 case BRD_ECP: 3297 case BRD_ECP:
3397 brdp->membase = (void *) brdp->memaddr;
3398 brdp->memsize = ECP_MEMSIZE; 3298 brdp->memsize = ECP_MEMSIZE;
3399 brdp->pagesize = ECP_ATPAGESIZE; 3299 brdp->pagesize = ECP_ATPAGESIZE;
3400 brdp->init = stli_ecpinit; 3300 brdp->init = stli_ecpinit;
@@ -3408,7 +3308,6 @@ static int stli_initecp(stlibrd_t *brdp)
3408 break; 3308 break;
3409 3309
3410 case BRD_ECPE: 3310 case BRD_ECPE:
3411 brdp->membase = (void *) brdp->memaddr;
3412 brdp->memsize = ECP_MEMSIZE; 3311 brdp->memsize = ECP_MEMSIZE;
3413 brdp->pagesize = ECP_EIPAGESIZE; 3312 brdp->pagesize = ECP_EIPAGESIZE;
3414 brdp->init = stli_ecpeiinit; 3313 brdp->init = stli_ecpeiinit;
@@ -3422,7 +3321,6 @@ static int stli_initecp(stlibrd_t *brdp)
3422 break; 3321 break;
3423 3322
3424 case BRD_ECPMC: 3323 case BRD_ECPMC:
3425 brdp->membase = (void *) brdp->memaddr;
3426 brdp->memsize = ECP_MEMSIZE; 3324 brdp->memsize = ECP_MEMSIZE;
3427 brdp->pagesize = ECP_MCPAGESIZE; 3325 brdp->pagesize = ECP_MCPAGESIZE;
3428 brdp->init = NULL; 3326 brdp->init = NULL;
@@ -3436,7 +3334,6 @@ static int stli_initecp(stlibrd_t *brdp)
3436 break; 3334 break;
3437 3335
3438 case BRD_ECPPCI: 3336 case BRD_ECPPCI:
3439 brdp->membase = (void *) brdp->memaddr;
3440 brdp->memsize = ECP_PCIMEMSIZE; 3337 brdp->memsize = ECP_PCIMEMSIZE;
3441 brdp->pagesize = ECP_PCIPAGESIZE; 3338 brdp->pagesize = ECP_PCIPAGESIZE;
3442 brdp->init = stli_ecppciinit; 3339 brdp->init = stli_ecppciinit;
@@ -3543,10 +3440,7 @@ static int stli_initonb(stlibrd_t *brdp)
3543 */ 3440 */
3544 switch (brdp->brdtype) { 3441 switch (brdp->brdtype) {
3545 case BRD_ONBOARD: 3442 case BRD_ONBOARD:
3546 case BRD_ONBOARD32:
3547 case BRD_ONBOARD2: 3443 case BRD_ONBOARD2:
3548 case BRD_ONBOARD2_32:
3549 case BRD_ONBOARDRS:
3550 brdp->memsize = ONB_MEMSIZE; 3444 brdp->memsize = ONB_MEMSIZE;
3551 brdp->pagesize = ONB_ATPAGESIZE; 3445 brdp->pagesize = ONB_ATPAGESIZE;
3552 brdp->init = stli_onbinit; 3446 brdp->init = stli_onbinit;
@@ -3577,8 +3471,6 @@ static int stli_initonb(stlibrd_t *brdp)
3577 break; 3471 break;
3578 3472
3579 case BRD_BRUMBY4: 3473 case BRD_BRUMBY4:
3580 case BRD_BRUMBY8:
3581 case BRD_BRUMBY16:
3582 brdp->memsize = BBY_MEMSIZE; 3474 brdp->memsize = BBY_MEMSIZE;
3583 brdp->pagesize = BBY_PAGESIZE; 3475 brdp->pagesize = BBY_PAGESIZE;
3584 brdp->init = stli_bbyinit; 3476 brdp->init = stli_bbyinit;
@@ -3795,22 +3687,10 @@ static int __devinit stli_brdinit(stlibrd_t *brdp)
3795 case BRD_ONBOARD: 3687 case BRD_ONBOARD:
3796 case BRD_ONBOARDE: 3688 case BRD_ONBOARDE:
3797 case BRD_ONBOARD2: 3689 case BRD_ONBOARD2:
3798 case BRD_ONBOARD32:
3799 case BRD_ONBOARD2_32:
3800 case BRD_ONBOARDRS:
3801 case BRD_BRUMBY4: 3690 case BRD_BRUMBY4:
3802 case BRD_BRUMBY8:
3803 case BRD_BRUMBY16:
3804 case BRD_STALLION: 3691 case BRD_STALLION:
3805 stli_initonb(brdp); 3692 stli_initonb(brdp);
3806 break; 3693 break;
3807 case BRD_EASYIO:
3808 case BRD_ECH:
3809 case BRD_ECHMC:
3810 case BRD_ECHPCI:
3811 printk(KERN_ERR "STALLION: %s board type not supported in "
3812 "this driver\n", stli_brdnames[brdp->brdtype]);
3813 return -ENODEV;
3814 default: 3694 default:
3815 printk(KERN_ERR "STALLION: board=%d is unknown board " 3695 printk(KERN_ERR "STALLION: board=%d is unknown board "
3816 "type=%d\n", brdp->brdnr, brdp->brdtype); 3696 "type=%d\n", brdp->brdnr, brdp->brdtype);
@@ -4119,37 +3999,23 @@ static stlibrd_t *stli_allocbrd(void)
4119static int stli_initbrds(void) 3999static int stli_initbrds(void)
4120{ 4000{
4121 stlibrd_t *brdp, *nxtbrdp; 4001 stlibrd_t *brdp, *nxtbrdp;
4122 stlconf_t *confp; 4002 stlconf_t conf;
4123 int i, j, retval; 4003 int i, j, retval;
4124 4004
4125 if (stli_nrbrds > STL_MAXBRDS) { 4005 for (stli_nrbrds = 0; stli_nrbrds < ARRAY_SIZE(stli_brdsp);
4126 printk(KERN_INFO "STALLION: too many boards in configuration " 4006 stli_nrbrds++) {
4127 "table, truncating to %d\n", STL_MAXBRDS); 4007 memset(&conf, 0, sizeof(conf));
4128 stli_nrbrds = STL_MAXBRDS; 4008 if (stli_parsebrd(&conf, stli_brdsp[stli_nrbrds]) == 0)
4129 } 4009 continue;
4130
4131/*
4132 * Firstly scan the list of static boards configured. Allocate
4133 * resources and initialize the boards as found. If this is a
4134 * module then let the module args override static configuration.
4135 */
4136 for (i = 0; (i < stli_nrbrds); i++) {
4137 confp = &stli_brdconf[i];
4138 stli_parsebrd(confp, stli_brdsp[i]);
4139 if ((brdp = stli_allocbrd()) == NULL) 4010 if ((brdp = stli_allocbrd()) == NULL)
4140 return -ENOMEM; 4011 continue;
4141 brdp->brdnr = i; 4012 brdp->brdnr = stli_nrbrds;
4142 brdp->brdtype = confp->brdtype; 4013 brdp->brdtype = conf.brdtype;
4143 brdp->iobase = confp->ioaddr1; 4014 brdp->iobase = conf.ioaddr1;
4144 brdp->memaddr = confp->memaddr; 4015 brdp->memaddr = conf.memaddr;
4145 stli_brdinit(brdp); 4016 stli_brdinit(brdp);
4146 } 4017 }
4147 4018
4148/*
4149 * Static configuration table done, so now use dynamic methods to
4150 * see if any more boards should be configured.
4151 */
4152 stli_argbrds();
4153 if (STLI_EISAPROBE) 4019 if (STLI_EISAPROBE)
4154 stli_findeisabrds(); 4020 stli_findeisabrds();
4155 4021
@@ -4225,7 +4091,7 @@ static ssize_t stli_memread(struct file *fp, char __user *buf, size_t count, lof
4225 if (off >= brdp->memsize || off + count < off) 4091 if (off >= brdp->memsize || off + count < off)
4226 return 0; 4092 return 0;
4227 4093
4228 size = MIN(count, (brdp->memsize - off)); 4094 size = min(count, (size_t)(brdp->memsize - off));
4229 4095
4230 /* 4096 /*
4231 * Copy the data a page at a time 4097 * Copy the data a page at a time
@@ -4239,8 +4105,8 @@ static ssize_t stli_memread(struct file *fp, char __user *buf, size_t count, lof
4239 spin_lock_irqsave(&brd_lock, flags); 4105 spin_lock_irqsave(&brd_lock, flags);
4240 EBRDENABLE(brdp); 4106 EBRDENABLE(brdp);
4241 memptr = EBRDGETMEMPTR(brdp, off); 4107 memptr = EBRDGETMEMPTR(brdp, off);
4242 n = MIN(size, (brdp->pagesize - (((unsigned long) off) % brdp->pagesize))); 4108 n = min(size, (int)(brdp->pagesize - (((unsigned long) off) % brdp->pagesize)));
4243 n = MIN(n, PAGE_SIZE); 4109 n = min(n, (int)PAGE_SIZE);
4244 memcpy_fromio(p, memptr, n); 4110 memcpy_fromio(p, memptr, n);
4245 EBRDDISABLE(brdp); 4111 EBRDDISABLE(brdp);
4246 spin_unlock_irqrestore(&brd_lock, flags); 4112 spin_unlock_irqrestore(&brd_lock, flags);
@@ -4291,7 +4157,7 @@ static ssize_t stli_memwrite(struct file *fp, const char __user *buf, size_t cou
4291 return 0; 4157 return 0;
4292 4158
4293 chbuf = (char __user *) buf; 4159 chbuf = (char __user *) buf;
4294 size = MIN(count, (brdp->memsize - off)); 4160 size = min(count, (size_t)(brdp->memsize - off));
4295 4161
4296 /* 4162 /*
4297 * Copy the data a page at a time 4163 * Copy the data a page at a time
@@ -4302,8 +4168,8 @@ static ssize_t stli_memwrite(struct file *fp, const char __user *buf, size_t cou
4302 return -ENOMEM; 4168 return -ENOMEM;
4303 4169
4304 while (size > 0) { 4170 while (size > 0) {
4305 n = MIN(size, (brdp->pagesize - (((unsigned long) off) % brdp->pagesize))); 4171 n = min(size, (int)(brdp->pagesize - (((unsigned long) off) % brdp->pagesize)));
4306 n = MIN(n, PAGE_SIZE); 4172 n = min(n, (int)PAGE_SIZE);
4307 if (copy_from_user(p, chbuf, n)) { 4173 if (copy_from_user(p, chbuf, n)) {
4308 if (count == 0) 4174 if (count == 0)
4309 count = -EFAULT; 4175 count = -EFAULT;