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path: root/drivers/pcmcia/cistpl.c
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Diffstat (limited to 'drivers/pcmcia/cistpl.c')
-rw-r--r--drivers/pcmcia/cistpl.c181
1 files changed, 107 insertions, 74 deletions
diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c
index 8c1b73cf021..25b1cd219e3 100644
--- a/drivers/pcmcia/cistpl.c
+++ b/drivers/pcmcia/cistpl.c
@@ -23,7 +23,7 @@
#include <linux/mm.h>
#include <linux/pci.h>
#include <linux/ioport.h>
-#include <asm/io.h>
+#include <linux/io.h>
#include <asm/byteorder.h>
#include <asm/unaligned.h>
@@ -125,7 +125,7 @@ set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flag
Low-level functions to read and write CIS memory. I think the
write routine is only useful for writing one-byte registers.
-
+
======================================================================*/
/* Bits in attr field */
@@ -137,7 +137,7 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
{
void __iomem *sys, *end;
unsigned char *buf = ptr;
-
+
dev_dbg(&s->dev, "pcmcia_read_cis_mem(%d, %#x, %u)\n", attr, addr, len);
if (attr & IS_INDIRECT) {
@@ -203,7 +203,7 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
{
void __iomem *sys, *end;
unsigned char *buf = ptr;
-
+
dev_dbg(&s->dev, "pcmcia_write_cis_mem(%d, %#x, %u)\n", attr, addr, len);
if (attr & IS_INDIRECT) {
@@ -262,7 +262,7 @@ EXPORT_SYMBOL(pcmcia_write_cis_mem);
This is a wrapper around read_cis_mem, with the same interface,
but which caches information, for cards whose CIS may not be
readable all the time.
-
+
======================================================================*/
static void read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr,
@@ -342,7 +342,7 @@ EXPORT_SYMBOL(destroy_cis_cache);
This verifies if the CIS of a card matches what is in the CIS
cache.
-
+
======================================================================*/
int verify_cis_cache(struct pcmcia_socket *s)
@@ -381,7 +381,7 @@ int verify_cis_cache(struct pcmcia_socket *s)
For really bad cards, we provide a facility for uploading a
replacement CIS.
-
+
======================================================================*/
int pcmcia_replace_cis(struct pcmcia_socket *s,
@@ -406,7 +406,7 @@ EXPORT_SYMBOL(pcmcia_replace_cis);
/*======================================================================
The high-level CIS tuple services
-
+
======================================================================*/
typedef struct tuple_flags {
@@ -421,8 +421,6 @@ typedef struct tuple_flags {
#define MFC_FN(f) (((tuple_flags *)(&(f)))->mfc_fn)
#define SPACE(f) (((tuple_flags *)(&(f)))->space)
-int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int func, tuple_t *tuple);
-
int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function, tuple_t *tuple)
{
if (!s)
@@ -523,10 +521,11 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_
ofs++; continue;
}
}
-
+
/* End of chain? Follow long link if possible */
if (link[0] == CISTPL_END) {
- if ((ofs = follow_link(s, tuple)) < 0)
+ ofs = follow_link(s, tuple);
+ if (ofs < 0)
return -ENOSPC;
attr = SPACE(tuple->Flags);
read_cis_cache(s, attr, ofs, 2, link);
@@ -578,7 +577,7 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_
} else
if (tuple->DesiredTuple == RETURN_FIRST_TUPLE)
break;
-
+
if (link[0] == tuple->DesiredTuple)
break;
ofs += link[1] + 2;
@@ -587,7 +586,7 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_
dev_dbg(&s->dev, "cs: overrun in pcmcia_get_next_tuple\n");
return -ENOSPC;
}
-
+
tuple->TupleCode = link[0];
tuple->TupleLink = link[1];
tuple->CISOffset = ofs + 2;
@@ -623,7 +622,7 @@ EXPORT_SYMBOL(pccard_get_tuple_data);
/*======================================================================
Parsing routines for individual tuples
-
+
======================================================================*/
static int parse_device(tuple_t *tuple, cistpl_device_t *device)
@@ -637,26 +636,37 @@ static int parse_device(tuple_t *tuple, cistpl_device_t *device)
device->ndev = 0;
for (i = 0; i < CISTPL_MAX_DEVICES; i++) {
-
- if (*p == 0xff) break;
+
+ if (*p == 0xff)
+ break;
device->dev[i].type = (*p >> 4);
device->dev[i].wp = (*p & 0x08) ? 1 : 0;
switch (*p & 0x07) {
- case 0: device->dev[i].speed = 0; break;
- case 1: device->dev[i].speed = 250; break;
- case 2: device->dev[i].speed = 200; break;
- case 3: device->dev[i].speed = 150; break;
- case 4: device->dev[i].speed = 100; break;
+ case 0:
+ device->dev[i].speed = 0;
+ break;
+ case 1:
+ device->dev[i].speed = 250;
+ break;
+ case 2:
+ device->dev[i].speed = 200;
+ break;
+ case 3:
+ device->dev[i].speed = 150;
+ break;
+ case 4:
+ device->dev[i].speed = 100;
+ break;
case 7:
- if (++p == q)
- return -EINVAL;
- device->dev[i].speed = SPEED_CVT(*p);
- while (*p & 0x80)
if (++p == q)
return -EINVAL;
- break;
+ device->dev[i].speed = SPEED_CVT(*p);
+ while (*p & 0x80)
+ if (++p == q)
+ return -EINVAL;
+ break;
default:
- return -EINVAL;
+ return -EINVAL;
}
if (++p == q)
@@ -671,7 +681,7 @@ static int parse_device(tuple_t *tuple, cistpl_device_t *device)
if (++p == q)
break;
}
-
+
return 0;
}
@@ -706,9 +716,9 @@ static int parse_longlink_mfc(tuple_t *tuple,
{
u_char *p;
int i;
-
+
p = (u_char *)tuple->TupleData;
-
+
link->nfn = *p; p++;
if (tuple->TupleDataLen <= link->nfn*5)
return -EINVAL;
@@ -737,11 +747,13 @@ static int parse_strings(u_char *p, u_char *q, int max,
ns++;
for (;;) {
s[j++] = (*p == 0xff) ? '\0' : *p;
- if ((*p == '\0') || (*p == 0xff)) break;
+ if ((*p == '\0') || (*p == 0xff))
+ break;
if (++p == q)
return -EINVAL;
}
- if ((*p == 0xff) || (++p == q)) break;
+ if ((*p == 0xff) || (++p == q))
+ break;
}
if (found) {
*found = ns;
@@ -756,10 +768,10 @@ static int parse_strings(u_char *p, u_char *q, int max,
static int parse_vers_1(tuple_t *tuple, cistpl_vers_1_t *vers_1)
{
u_char *p, *q;
-
+
p = (u_char *)tuple->TupleData;
q = p + tuple->TupleDataLen;
-
+
vers_1->major = *p; p++;
vers_1->minor = *p; p++;
if (p >= q)
@@ -774,10 +786,10 @@ static int parse_vers_1(tuple_t *tuple, cistpl_vers_1_t *vers_1)
static int parse_altstr(tuple_t *tuple, cistpl_altstr_t *altstr)
{
u_char *p, *q;
-
+
p = (u_char *)tuple->TupleData;
q = p + tuple->TupleDataLen;
-
+
return parse_strings(p, q, CISTPL_MAX_ALTSTR_STRINGS,
altstr->str, altstr->ofs, &altstr->ns);
}
@@ -793,7 +805,8 @@ static int parse_jedec(tuple_t *tuple, cistpl_jedec_t *jedec)
q = p + tuple->TupleDataLen;
for (nid = 0; nid < CISTPL_MAX_DEVICES; nid++) {
- if (p > q-2) break;
+ if (p > q-2)
+ break;
jedec->id[nid].mfr = p[0];
jedec->id[nid].info = p[1];
p += 2;
@@ -871,7 +884,7 @@ static int parse_config(tuple_t *tuple, cistpl_config_t *config)
The following routines are all used to parse the nightmarish
config table entries.
-
+
======================================================================*/
static u_char *parse_power(u_char *p, u_char *q,
@@ -880,17 +893,20 @@ static u_char *parse_power(u_char *p, u_char *q,
int i;
u_int scale;
- if (p == q) return NULL;
+ if (p == q)
+ return NULL;
pwr->present = *p;
pwr->flags = 0;
p++;
for (i = 0; i < 7; i++)
if (pwr->present & (1<<i)) {
- if (p == q) return NULL;
+ if (p == q)
+ return NULL;
pwr->param[i] = POWER_CVT(*p);
scale = POWER_SCALE(*p);
while (*p & 0x80) {
- if (++p == q) return NULL;
+ if (++p == q)
+ return NULL;
if ((*p & 0x7f) < 100)
pwr->param[i] += (*p & 0x7f) * scale / 100;
else if (*p == 0x7d)
@@ -914,24 +930,28 @@ static u_char *parse_timing(u_char *p, u_char *q,
{
u_char scale;
- if (p == q) return NULL;
+ if (p == q)
+ return NULL;
scale = *p;
if ((scale & 3) != 3) {
- if (++p == q) return NULL;
+ if (++p == q)
+ return NULL;
timing->wait = SPEED_CVT(*p);
timing->waitscale = exponent[scale & 3];
} else
timing->wait = 0;
scale >>= 2;
if ((scale & 7) != 7) {
- if (++p == q) return NULL;
+ if (++p == q)
+ return NULL;
timing->ready = SPEED_CVT(*p);
timing->rdyscale = exponent[scale & 7];
} else
timing->ready = 0;
scale >>= 3;
if (scale != 7) {
- if (++p == q) return NULL;
+ if (++p == q)
+ return NULL;
timing->reserved = SPEED_CVT(*p);
timing->rsvscale = exponent[scale];
} else
@@ -946,7 +966,8 @@ static u_char *parse_io(u_char *p, u_char *q, cistpl_io_t *io)
{
int i, j, bsz, lsz;
- if (p == q) return NULL;
+ if (p == q)
+ return NULL;
io->flags = *p;
if (!(*p & 0x80)) {
@@ -955,24 +976,29 @@ static u_char *parse_io(u_char *p, u_char *q, cistpl_io_t *io)
io->win[0].len = (1 << (io->flags & CISTPL_IO_LINES_MASK));
return p+1;
}
-
- if (++p == q) return NULL;
+
+ if (++p == q)
+ return NULL;
io->nwin = (*p & 0x0f) + 1;
bsz = (*p & 0x30) >> 4;
- if (bsz == 3) bsz++;
+ if (bsz == 3)
+ bsz++;
lsz = (*p & 0xc0) >> 6;
- if (lsz == 3) lsz++;
+ if (lsz == 3)
+ lsz++;
p++;
-
+
for (i = 0; i < io->nwin; i++) {
io->win[i].base = 0;
io->win[i].len = 1;
for (j = 0; j < bsz; j++, p++) {
- if (p == q) return NULL;
+ if (p == q)
+ return NULL;
io->win[i].base += *p << (j*8);
}
for (j = 0; j < lsz; j++, p++) {
- if (p == q) return NULL;
+ if (p == q)
+ return NULL;
io->win[i].len += *p << (j*8);
}
}
@@ -986,27 +1012,32 @@ static u_char *parse_mem(u_char *p, u_char *q, cistpl_mem_t *mem)
int i, j, asz, lsz, has_ha;
u_int len, ca, ha;
- if (p == q) return NULL;
+ if (p == q)
+ return NULL;
mem->nwin = (*p & 0x07) + 1;
lsz = (*p & 0x18) >> 3;
asz = (*p & 0x60) >> 5;
has_ha = (*p & 0x80);
- if (++p == q) return NULL;
-
+ if (++p == q)
+ return NULL;
+
for (i = 0; i < mem->nwin; i++) {
len = ca = ha = 0;
for (j = 0; j < lsz; j++, p++) {
- if (p == q) return NULL;
+ if (p == q)
+ return NULL;
len += *p << (j*8);
}
for (j = 0; j < asz; j++, p++) {
- if (p == q) return NULL;
+ if (p == q)
+ return NULL;
ca += *p << (j*8);
}
if (has_ha)
for (j = 0; j < asz; j++, p++) {
- if (p == q) return NULL;
+ if (p == q)
+ return NULL;
ha += *p << (j*8);
}
mem->win[i].len = len << 8;
@@ -1095,7 +1126,7 @@ static int parse_cftable_entry(tuple_t *tuple,
entry->timing.ready = 0;
entry->timing.reserved = 0;
}
-
+
/* I/O window options */
if (features & 0x08) {
p = parse_io(p, q, &entry->io);
@@ -1103,7 +1134,7 @@ static int parse_cftable_entry(tuple_t *tuple,
return -EINVAL;
} else
entry->io.nwin = 0;
-
+
/* Interrupt options */
if (features & 0x10) {
p = parse_irq(p, q, &entry->irq);
@@ -1153,7 +1184,7 @@ static int parse_cftable_entry(tuple_t *tuple,
}
entry->subtuples = q-p;
-
+
return 0;
}
@@ -1176,7 +1207,7 @@ static int parse_bar(tuple_t *tuple, cistpl_bar_t *bar)
static int parse_config_cb(tuple_t *tuple, cistpl_config_t *config)
{
u_char *p;
-
+
p = (u_char *)tuple->TupleData;
if ((*p != 3) || (tuple->TupleDataLen < 6))
return -EINVAL;
@@ -1231,7 +1262,7 @@ static int parse_cftable_entry_cb(tuple_t *tuple,
entry->io = *p; p++;
} else
entry->io = 0;
-
+
/* Interrupt options */
if (features & 0x10) {
p = parse_irq(p, q, &entry->irq);
@@ -1264,7 +1295,7 @@ static int parse_cftable_entry_cb(tuple_t *tuple,
}
entry->subtuples = q-p;
-
+
return 0;
}
@@ -1281,7 +1312,8 @@ static int parse_device_geo(tuple_t *tuple, cistpl_device_geo_t *geo)
q = p + tuple->TupleDataLen;
for (n = 0; n < CISTPL_MAX_DEVICES; n++) {
- if (p > q-6) break;
+ if (p > q-6)
+ break;
geo->geo[n].buswidth = p[0];
geo->geo[n].erase_block = 1 << (p[1]-1);
geo->geo[n].read_block = 1 << (p[2]-1);
@@ -1302,13 +1334,13 @@ static int parse_vers_2(tuple_t *tuple, cistpl_vers_2_t *v2)
if (tuple->TupleDataLen < 10)
return -EINVAL;
-
+
p = tuple->TupleData;
q = p + tuple->TupleDataLen;
v2->vers = p[0];
v2->comply = p[1];
- v2->dindex = get_unaligned_le16(p +2 );
+ v2->dindex = get_unaligned_le16(p + 2);
v2->vspec8 = p[6];
v2->vspec9 = p[7];
v2->nhdr = p[8];
@@ -1322,7 +1354,7 @@ static int parse_org(tuple_t *tuple, cistpl_org_t *org)
{
u_char *p, *q;
int i;
-
+
p = tuple->TupleData;
q = p + tuple->TupleDataLen;
if (p == q)
@@ -1332,7 +1364,8 @@ static int parse_org(tuple_t *tuple, cistpl_org_t *org)
return -EINVAL;
for (i = 0; i < 30; i++) {
org->desc[i] = *p;
- if (*p == '\0') break;
+ if (*p == '\0')
+ break;
if (++p == q)
return -EINVAL;
}
@@ -1363,7 +1396,7 @@ static int parse_format(tuple_t *tuple, cistpl_format_t *fmt)
int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse)
{
int ret = 0;
-
+
if (tuple->TupleDataLen > tuple->TupleDataMax)
return -EINVAL;
switch (tuple->TupleCode) {
@@ -1448,7 +1481,7 @@ EXPORT_SYMBOL(pcmcia_parse_tuple);
/*======================================================================
This is used internally by Card Services to look up CIS stuff.
-
+
======================================================================*/
int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, cisdata_t code, void *parse)
@@ -1550,7 +1583,7 @@ EXPORT_SYMBOL(pccard_loop_tuple);
checks include making sure several critical tuples are present and
valid; seeing if the total number of tuples is reasonable; and
looking for tuples that use reserved codes.
-
+
======================================================================*/
int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info)
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 19:36:48 +0000