/* Upper limit on reasonable # of tuples */
#define MAX_TUPLES 200
-/*====================================================================*/
-
-/* Parameters that can be set with 'insmod' */
-
/* 16-bit CIS? */
static int cis_width;
module_param(cis_width, int, 0444);
void release_cis_mem(struct pcmcia_socket *s)
{
- mutex_lock(&s->ops_mutex);
- if (s->cis_mem.flags & MAP_ACTIVE) {
- s->cis_mem.flags &= ~MAP_ACTIVE;
- s->ops->set_mem_map(s, &s->cis_mem);
- if (s->cis_mem.res) {
- release_resource(s->cis_mem.res);
- kfree(s->cis_mem.res);
- s->cis_mem.res = NULL;
+ mutex_lock(&s->ops_mutex);
+ if (s->cis_mem.flags & MAP_ACTIVE) {
+ s->cis_mem.flags &= ~MAP_ACTIVE;
+ s->ops->set_mem_map(s, &s->cis_mem);
+ if (s->cis_mem.res) {
+ release_resource(s->cis_mem.res);
+ kfree(s->cis_mem.res);
+ s->cis_mem.res = NULL;
+ }
+ iounmap(s->cis_virt);
+ s->cis_virt = NULL;
}
- iounmap(s->cis_virt);
- s->cis_virt = NULL;
- }
- mutex_unlock(&s->ops_mutex);
+ mutex_unlock(&s->ops_mutex);
}
-/*
- * Map the card memory at "card_offset" into virtual space.
+/**
+ * set_cis_map() - map the card memory at "card_offset" into virtual space.
+ *
* If flags & MAP_ATTRIB, map the attribute space, otherwise
* map the memory space.
*
* Must be called with ops_mutex held.
*/
-static void __iomem *
-set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flags)
+static void __iomem *set_cis_map(struct pcmcia_socket *s,
+ unsigned int card_offset, unsigned int flags)
{
pccard_mem_map *mem = &s->cis_mem;
int ret;
if (!(s->features & SS_CAP_STATIC_MAP) && (mem->res == NULL)) {
- mem->res = pcmcia_find_mem_region(0, s->map_size, s->map_size, 0, s);
+ mem->res = pcmcia_find_mem_region(0, s->map_size,
+ s->map_size, 0, s);
if (mem->res == NULL) {
dev_printk(KERN_NOTICE, &s->dev,
"cs: unable to map card memory!\n");
return s->cis_virt;
}
-/*======================================================================
-
- 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 */
#define IS_ATTR 1
#define IS_INDIRECT 8
+/**
+ * pcmcia_read_cis_mem() - low-level function to read CIS memory
+ */
int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
u_int len, void *ptr)
{
- void __iomem *sys, *end;
- unsigned char *buf = ptr;
-
- dev_dbg(&s->dev, "pcmcia_read_cis_mem(%d, %#x, %u)\n", attr, addr, len);
-
- mutex_lock(&s->ops_mutex);
- if (attr & IS_INDIRECT) {
- /* Indirect accesses use a bunch of special registers at fixed
- locations in common memory */
- u_char flags = ICTRL0_COMMON|ICTRL0_AUTOINC|ICTRL0_BYTEGRAN;
- if (attr & IS_ATTR) {
- addr *= 2;
- flags = ICTRL0_AUTOINC;
- }
+ void __iomem *sys, *end;
+ unsigned char *buf = ptr;
- sys = set_cis_map(s, 0, MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0));
- if (!sys) {
- dev_dbg(&s->dev, "could not map memory\n");
- memset(ptr, 0xff, len);
- mutex_unlock(&s->ops_mutex);
- return -1;
- }
+ dev_dbg(&s->dev, "pcmcia_read_cis_mem(%d, %#x, %u)\n", attr, addr, len);
- writeb(flags, sys+CISREG_ICTRL0);
- writeb(addr & 0xff, sys+CISREG_IADDR0);
- writeb((addr>>8) & 0xff, sys+CISREG_IADDR1);
- writeb((addr>>16) & 0xff, sys+CISREG_IADDR2);
- writeb((addr>>24) & 0xff, sys+CISREG_IADDR3);
- for ( ; len > 0; len--, buf++)
- *buf = readb(sys+CISREG_IDATA0);
- } else {
- u_int inc = 1, card_offset, flags;
-
- if (addr > CISTPL_MAX_CIS_SIZE)
- dev_dbg(&s->dev, "attempt to read CIS mem at addr %#x", addr);
-
- flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0);
- if (attr) {
- flags |= MAP_ATTRIB;
- inc++;
- addr *= 2;
- }
+ mutex_lock(&s->ops_mutex);
+ if (attr & IS_INDIRECT) {
+ /* Indirect accesses use a bunch of special registers at fixed
+ locations in common memory */
+ u_char flags = ICTRL0_COMMON|ICTRL0_AUTOINC|ICTRL0_BYTEGRAN;
+ if (attr & IS_ATTR) {
+ addr *= 2;
+ flags = ICTRL0_AUTOINC;
+ }
- card_offset = addr & ~(s->map_size-1);
- while (len) {
- sys = set_cis_map(s, card_offset, flags);
- if (!sys) {
- dev_dbg(&s->dev, "could not map memory\n");
- memset(ptr, 0xff, len);
- mutex_unlock(&s->ops_mutex);
- return -1;
- }
- end = sys + s->map_size;
- sys = sys + (addr & (s->map_size-1));
- for ( ; len > 0; len--, buf++, sys += inc) {
- if (sys == end)
- break;
- *buf = readb(sys);
- }
- card_offset += s->map_size;
- addr = 0;
+ sys = set_cis_map(s, 0, MAP_ACTIVE |
+ ((cis_width) ? MAP_16BIT : 0));
+ if (!sys) {
+ dev_dbg(&s->dev, "could not map memory\n");
+ memset(ptr, 0xff, len);
+ mutex_unlock(&s->ops_mutex);
+ return -1;
+ }
+
+ writeb(flags, sys+CISREG_ICTRL0);
+ writeb(addr & 0xff, sys+CISREG_IADDR0);
+ writeb((addr>>8) & 0xff, sys+CISREG_IADDR1);
+ writeb((addr>>16) & 0xff, sys+CISREG_IADDR2);
+ writeb((addr>>24) & 0xff, sys+CISREG_IADDR3);
+ for ( ; len > 0; len--, buf++)
+ *buf = readb(sys+CISREG_IDATA0);
+ } else {
+ u_int inc = 1, card_offset, flags;
+
+ if (addr > CISTPL_MAX_CIS_SIZE)
+ dev_dbg(&s->dev,
+ "attempt to read CIS mem at addr %#x", addr);
+
+ flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0);
+ if (attr) {
+ flags |= MAP_ATTRIB;
+ inc++;
+ addr *= 2;
+ }
+
+ card_offset = addr & ~(s->map_size-1);
+ while (len) {
+ sys = set_cis_map(s, card_offset, flags);
+ if (!sys) {
+ dev_dbg(&s->dev, "could not map memory\n");
+ memset(ptr, 0xff, len);
+ mutex_unlock(&s->ops_mutex);
+ return -1;
+ }
+ end = sys + s->map_size;
+ sys = sys + (addr & (s->map_size-1));
+ for ( ; len > 0; len--, buf++, sys += inc) {
+ if (sys == end)
+ break;
+ *buf = readb(sys);
+ }
+ card_offset += s->map_size;
+ addr = 0;
+ }
}
- }
- mutex_unlock(&s->ops_mutex);
- dev_dbg(&s->dev, " %#2.2x %#2.2x %#2.2x %#2.2x ...\n",
- *(u_char *)(ptr+0), *(u_char *)(ptr+1),
- *(u_char *)(ptr+2), *(u_char *)(ptr+3));
- return 0;
+ mutex_unlock(&s->ops_mutex);
+ dev_dbg(&s->dev, " %#2.2x %#2.2x %#2.2x %#2.2x ...\n",
+ *(u_char *)(ptr+0), *(u_char *)(ptr+1),
+ *(u_char *)(ptr+2), *(u_char *)(ptr+3));
+ return 0;
}
+/**
+ * pcmcia_write_cis_mem() - low-level function to write CIS memory
+ *
+ * Probably only useful for writing one-byte registers.
+ */
void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
u_int len, void *ptr)
{
- void __iomem *sys, *end;
- unsigned char *buf = ptr;
-
- dev_dbg(&s->dev, "pcmcia_write_cis_mem(%d, %#x, %u)\n", attr, addr, len);
-
- mutex_lock(&s->ops_mutex);
- if (attr & IS_INDIRECT) {
- /* Indirect accesses use a bunch of special registers at fixed
- locations in common memory */
- u_char flags = ICTRL0_COMMON|ICTRL0_AUTOINC|ICTRL0_BYTEGRAN;
- if (attr & IS_ATTR) {
- addr *= 2;
- flags = ICTRL0_AUTOINC;
- }
+ void __iomem *sys, *end;
+ unsigned char *buf = ptr;
- sys = set_cis_map(s, 0, MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0));
- if (!sys) {
- dev_dbg(&s->dev, "could not map memory\n");
- mutex_unlock(&s->ops_mutex);
- return; /* FIXME: Error */
- }
+ dev_dbg(&s->dev,
+ "pcmcia_write_cis_mem(%d, %#x, %u)\n", attr, addr, len);
- writeb(flags, sys+CISREG_ICTRL0);
- writeb(addr & 0xff, sys+CISREG_IADDR0);
- writeb((addr>>8) & 0xff, sys+CISREG_IADDR1);
- writeb((addr>>16) & 0xff, sys+CISREG_IADDR2);
- writeb((addr>>24) & 0xff, sys+CISREG_IADDR3);
- for ( ; len > 0; len--, buf++)
- writeb(*buf, sys+CISREG_IDATA0);
- } else {
- u_int inc = 1, card_offset, flags;
-
- flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0);
- if (attr & IS_ATTR) {
- flags |= MAP_ATTRIB;
- inc++;
- addr *= 2;
- }
+ mutex_lock(&s->ops_mutex);
+ if (attr & IS_INDIRECT) {
+ /* Indirect accesses use a bunch of special registers at fixed
+ locations in common memory */
+ u_char flags = ICTRL0_COMMON|ICTRL0_AUTOINC|ICTRL0_BYTEGRAN;
+ if (attr & IS_ATTR) {
+ addr *= 2;
+ flags = ICTRL0_AUTOINC;
+ }
- card_offset = addr & ~(s->map_size-1);
- while (len) {
- sys = set_cis_map(s, card_offset, flags);
- if (!sys) {
- dev_dbg(&s->dev, "could not map memory\n");
- mutex_unlock(&s->ops_mutex);
- return; /* FIXME: error */
- }
-
- end = sys + s->map_size;
- sys = sys + (addr & (s->map_size-1));
- for ( ; len > 0; len--, buf++, sys += inc) {
- if (sys == end)
- break;
- writeb(*buf, sys);
- }
- card_offset += s->map_size;
- addr = 0;
- }
- }
- mutex_unlock(&s->ops_mutex);
-}
+ sys = set_cis_map(s, 0, MAP_ACTIVE |
+ ((cis_width) ? MAP_16BIT : 0));
+ if (!sys) {
+ dev_dbg(&s->dev, "could not map memory\n");
+ mutex_unlock(&s->ops_mutex);
+ return; /* FIXME: Error */
+ }
+
+ writeb(flags, sys+CISREG_ICTRL0);
+ writeb(addr & 0xff, sys+CISREG_IADDR0);
+ writeb((addr>>8) & 0xff, sys+CISREG_IADDR1);
+ writeb((addr>>16) & 0xff, sys+CISREG_IADDR2);
+ writeb((addr>>24) & 0xff, sys+CISREG_IADDR3);
+ for ( ; len > 0; len--, buf++)
+ writeb(*buf, sys+CISREG_IDATA0);
+ } else {
+ u_int inc = 1, card_offset, flags;
+ flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0);
+ if (attr & IS_ATTR) {
+ flags |= MAP_ATTRIB;
+ inc++;
+ addr *= 2;
+ }
-/*======================================================================
+ card_offset = addr & ~(s->map_size-1);
+ while (len) {
+ sys = set_cis_map(s, card_offset, flags);
+ if (!sys) {
+ dev_dbg(&s->dev, "could not map memory\n");
+ mutex_unlock(&s->ops_mutex);
+ return; /* FIXME: error */
+ }
- 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.
+ end = sys + s->map_size;
+ sys = sys + (addr & (s->map_size-1));
+ for ( ; len > 0; len--, buf++, sys += inc) {
+ if (sys == end)
+ break;
+ writeb(*buf, sys);
+ }
+ card_offset += s->map_size;
+ addr = 0;
+ }
+ }
+ mutex_unlock(&s->ops_mutex);
+}
-======================================================================*/
+/**
+ * read_cis_cache() - read CIS memory or its associated cache
+ *
+ * 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 int read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr,
size_t len, void *ptr)
{
* This destroys the CIS cache but keeps any fake CIS alive. Must be
* called with ops_mutex held.
*/
-
void destroy_cis_cache(struct pcmcia_socket *s)
{
struct list_head *l, *n;
}
}
-/*======================================================================
-
- This verifies if the CIS of a card matches what is in the CIS
- cache.
-
-======================================================================*/
-
+/**
+ * verify_cis_cache() - does the CIS match what is in the CIS cache?
+ */
int verify_cis_cache(struct pcmcia_socket *s)
{
struct cis_cache_entry *cis;
return 0;
}
-/*======================================================================
-
- For really bad cards, we provide a facility for uploading a
- replacement CIS.
-
-======================================================================*/
-
+/**
+ * pcmcia_replace_cis() - use a replacement CIS instead of the card's CIS
+ *
+ * For really bad cards, we provide a facility for uploading a
+ * replacement CIS.
+ */
int pcmcia_replace_cis(struct pcmcia_socket *s,
const u8 *data, const size_t len)
{
return 0;
}
-/*======================================================================
-
- The high-level CIS tuple services
-
-======================================================================*/
+/* The high-level CIS tuple services */
typedef struct tuple_flags {
- u_int link_space:4;
- u_int has_link:1;
- u_int mfc_fn:3;
- u_int space:4;
+ u_int link_space:4;
+ u_int has_link:1;
+ u_int mfc_fn:3;
+ u_int space:4;
} tuple_flags;
#define LINK_SPACE(f) (((tuple_flags *)(&(f)))->link_space)
#define MFC_FN(f) (((tuple_flags *)(&(f)))->mfc_fn)
#define SPACE(f) (((tuple_flags *)(&(f)))->space)
-int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function, tuple_t *tuple)
+int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function,
+ tuple_t *tuple)
{
- if (!s)
- return -EINVAL;
-
- if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS))
- return -ENODEV;
- tuple->TupleLink = tuple->Flags = 0;
-
- /* Assume presence of a LONGLINK_C to address 0 */
- tuple->CISOffset = tuple->LinkOffset = 0;
- SPACE(tuple->Flags) = HAS_LINK(tuple->Flags) = 1;
-
- if ((s->functions > 1) && !(tuple->Attributes & TUPLE_RETURN_COMMON)) {
- cisdata_t req = tuple->DesiredTuple;
- tuple->DesiredTuple = CISTPL_LONGLINK_MFC;
- if (pccard_get_next_tuple(s, function, tuple) == 0) {
- tuple->DesiredTuple = CISTPL_LINKTARGET;
- if (pccard_get_next_tuple(s, function, tuple) != 0)
- return -ENOSPC;
- } else
- tuple->CISOffset = tuple->TupleLink = 0;
- tuple->DesiredTuple = req;
- }
- return pccard_get_next_tuple(s, function, tuple);
+ if (!s)
+ return -EINVAL;
+
+ if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS))
+ return -ENODEV;
+ tuple->TupleLink = tuple->Flags = 0;
+
+ /* Assume presence of a LONGLINK_C to address 0 */
+ tuple->CISOffset = tuple->LinkOffset = 0;
+ SPACE(tuple->Flags) = HAS_LINK(tuple->Flags) = 1;
+
+ if ((s->functions > 1) && !(tuple->Attributes & TUPLE_RETURN_COMMON)) {
+ cisdata_t req = tuple->DesiredTuple;
+ tuple->DesiredTuple = CISTPL_LONGLINK_MFC;
+ if (pccard_get_next_tuple(s, function, tuple) == 0) {
+ tuple->DesiredTuple = CISTPL_LINKTARGET;
+ if (pccard_get_next_tuple(s, function, tuple) != 0)
+ return -ENOSPC;
+ } else
+ tuple->CISOffset = tuple->TupleLink = 0;
+ tuple->DesiredTuple = req;
+ }
+ return pccard_get_next_tuple(s, function, tuple);
}
static int follow_link(struct pcmcia_socket *s, tuple_t *tuple)
{
- u_char link[5];
- u_int ofs;
- int ret;
-
- if (MFC_FN(tuple->Flags)) {
- /* Get indirect link from the MFC tuple */
- ret = read_cis_cache(s, LINK_SPACE(tuple->Flags),
- tuple->LinkOffset, 5, link);
- if (ret)
+ u_char link[5];
+ u_int ofs;
+ int ret;
+
+ if (MFC_FN(tuple->Flags)) {
+ /* Get indirect link from the MFC tuple */
+ ret = read_cis_cache(s, LINK_SPACE(tuple->Flags),
+ tuple->LinkOffset, 5, link);
+ if (ret)
+ return -1;
+ ofs = get_unaligned_le32(link + 1);
+ SPACE(tuple->Flags) = (link[0] == CISTPL_MFC_ATTR);
+ /* Move to the next indirect link */
+ tuple->LinkOffset += 5;
+ MFC_FN(tuple->Flags)--;
+ } else if (HAS_LINK(tuple->Flags)) {
+ ofs = tuple->LinkOffset;
+ SPACE(tuple->Flags) = LINK_SPACE(tuple->Flags);
+ HAS_LINK(tuple->Flags) = 0;
+ } else
return -1;
- ofs = get_unaligned_le32(link + 1);
- SPACE(tuple->Flags) = (link[0] == CISTPL_MFC_ATTR);
- /* Move to the next indirect link */
- tuple->LinkOffset += 5;
- MFC_FN(tuple->Flags)--;
- } else if (HAS_LINK(tuple->Flags)) {
- ofs = tuple->LinkOffset;
- SPACE(tuple->Flags) = LINK_SPACE(tuple->Flags);
- HAS_LINK(tuple->Flags) = 0;
- } else {
- return -1;
- }
- if (SPACE(tuple->Flags)) {
- /* This is ugly, but a common CIS error is to code the long
- link offset incorrectly, so we check the right spot... */
+
+ if (SPACE(tuple->Flags)) {
+ /* This is ugly, but a common CIS error is to code the long
+ link offset incorrectly, so we check the right spot... */
+ ret = read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link);
+ if (ret)
+ return -1;
+ if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) &&
+ (strncmp(link+2, "CIS", 3) == 0))
+ return ofs;
+ remove_cis_cache(s, SPACE(tuple->Flags), ofs, 5);
+ /* Then, we try the wrong spot... */
+ ofs = ofs >> 1;
+ }
ret = read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link);
if (ret)
return -1;
if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) &&
- (strncmp(link+2, "CIS", 3) == 0))
- return ofs;
+ (strncmp(link+2, "CIS", 3) == 0))
+ return ofs;
remove_cis_cache(s, SPACE(tuple->Flags), ofs, 5);
- /* Then, we try the wrong spot... */
- ofs = ofs >> 1;
- }
- ret = read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link);
- if (ret)
- return -1;
- if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) &&
- (strncmp(link+2, "CIS", 3) == 0))
- return ofs;
- remove_cis_cache(s, SPACE(tuple->Flags), ofs, 5);
- return -1;
+ return -1;
}
-int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_t *tuple)
+int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function,
+ tuple_t *tuple)
{
- u_char link[2], tmp;
- int ofs, i, attr;
- int ret;
-
- if (!s)
- return -EINVAL;
- if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS))
- return -ENODEV;
-
- link[1] = tuple->TupleLink;
- ofs = tuple->CISOffset + tuple->TupleLink;
- attr = SPACE(tuple->Flags);
-
- for (i = 0; i < MAX_TUPLES; i++) {
- if (link[1] == 0xff) {
- link[0] = CISTPL_END;
- } else {
- ret = read_cis_cache(s, attr, ofs, 2, link);
- if (ret)
- return -1;
- if (link[0] == CISTPL_NULL) {
- ofs++; continue;
- }
- }
+ u_char link[2], tmp;
+ int ofs, i, attr;
+ int ret;
- /* End of chain? Follow long link if possible */
- if (link[0] == CISTPL_END) {
- ofs = follow_link(s, tuple);
- if (ofs < 0)
- return -ENOSPC;
- attr = SPACE(tuple->Flags);
- ret = read_cis_cache(s, attr, ofs, 2, link);
- if (ret)
- return -1;
- }
+ if (!s)
+ return -EINVAL;
+ if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS))
+ return -ENODEV;
- /* Is this a link tuple? Make a note of it */
- if ((link[0] == CISTPL_LONGLINK_A) ||
- (link[0] == CISTPL_LONGLINK_C) ||
- (link[0] == CISTPL_LONGLINK_MFC) ||
- (link[0] == CISTPL_LINKTARGET) ||
- (link[0] == CISTPL_INDIRECT) ||
- (link[0] == CISTPL_NO_LINK)) {
- switch (link[0]) {
- case CISTPL_LONGLINK_A:
- HAS_LINK(tuple->Flags) = 1;
- LINK_SPACE(tuple->Flags) = attr | IS_ATTR;
- ret = read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset);
- if (ret)
- return -1;
- break;
- case CISTPL_LONGLINK_C:
- HAS_LINK(tuple->Flags) = 1;
- LINK_SPACE(tuple->Flags) = attr & ~IS_ATTR;
- ret = read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset);
- if (ret)
- return -1;
- break;
- case CISTPL_INDIRECT:
- HAS_LINK(tuple->Flags) = 1;
- LINK_SPACE(tuple->Flags) = IS_ATTR | IS_INDIRECT;
- tuple->LinkOffset = 0;
- break;
- case CISTPL_LONGLINK_MFC:
- tuple->LinkOffset = ofs + 3;
- LINK_SPACE(tuple->Flags) = attr;
- if (function == BIND_FN_ALL) {
- /* Follow all the MFC links */
- ret = read_cis_cache(s, attr, ofs+2, 1, &tmp);
- if (ret)
- return -1;
- MFC_FN(tuple->Flags) = tmp;
- } else {
- /* Follow exactly one of the links */
- MFC_FN(tuple->Flags) = 1;
- tuple->LinkOffset += function * 5;
+ link[1] = tuple->TupleLink;
+ ofs = tuple->CISOffset + tuple->TupleLink;
+ attr = SPACE(tuple->Flags);
+
+ for (i = 0; i < MAX_TUPLES; i++) {
+ if (link[1] == 0xff)
+ link[0] = CISTPL_END;
+ else {
+ ret = read_cis_cache(s, attr, ofs, 2, link);
+ if (ret)
+ return -1;
+ if (link[0] == CISTPL_NULL) {
+ ofs++;
+ continue;
+ }
}
- break;
- case CISTPL_NO_LINK:
- HAS_LINK(tuple->Flags) = 0;
- break;
- }
- if ((tuple->Attributes & TUPLE_RETURN_LINK) &&
- (tuple->DesiredTuple == RETURN_FIRST_TUPLE))
- break;
- } else
- if (tuple->DesiredTuple == RETURN_FIRST_TUPLE)
- break;
- if (link[0] == tuple->DesiredTuple)
- break;
- ofs += link[1] + 2;
- }
- if (i == MAX_TUPLES) {
- 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;
- return 0;
-}
+ /* End of chain? Follow long link if possible */
+ if (link[0] == CISTPL_END) {
+ ofs = follow_link(s, tuple);
+ if (ofs < 0)
+ return -ENOSPC;
+ attr = SPACE(tuple->Flags);
+ ret = read_cis_cache(s, attr, ofs, 2, link);
+ if (ret)
+ return -1;
+ }
-/*====================================================================*/
+ /* Is this a link tuple? Make a note of it */
+ if ((link[0] == CISTPL_LONGLINK_A) ||
+ (link[0] == CISTPL_LONGLINK_C) ||
+ (link[0] == CISTPL_LONGLINK_MFC) ||
+ (link[0] == CISTPL_LINKTARGET) ||
+ (link[0] == CISTPL_INDIRECT) ||
+ (link[0] == CISTPL_NO_LINK)) {
+ switch (link[0]) {
+ case CISTPL_LONGLINK_A:
+ HAS_LINK(tuple->Flags) = 1;
+ LINK_SPACE(tuple->Flags) = attr | IS_ATTR;
+ ret = read_cis_cache(s, attr, ofs+2, 4,
+ &tuple->LinkOffset);
+ if (ret)
+ return -1;
+ break;
+ case CISTPL_LONGLINK_C:
+ HAS_LINK(tuple->Flags) = 1;
+ LINK_SPACE(tuple->Flags) = attr & ~IS_ATTR;
+ ret = read_cis_cache(s, attr, ofs+2, 4,
+ &tuple->LinkOffset);
+ if (ret)
+ return -1;
+ break;
+ case CISTPL_INDIRECT:
+ HAS_LINK(tuple->Flags) = 1;
+ LINK_SPACE(tuple->Flags) = IS_ATTR |
+ IS_INDIRECT;
+ tuple->LinkOffset = 0;
+ break;
+ case CISTPL_LONGLINK_MFC:
+ tuple->LinkOffset = ofs + 3;
+ LINK_SPACE(tuple->Flags) = attr;
+ if (function == BIND_FN_ALL) {
+ /* Follow all the MFC links */
+ ret = read_cis_cache(s, attr, ofs+2,
+ 1, &tmp);
+ if (ret)
+ return -1;
+ MFC_FN(tuple->Flags) = tmp;
+ } else {
+ /* Follow exactly one of the links */
+ MFC_FN(tuple->Flags) = 1;
+ tuple->LinkOffset += function * 5;
+ }
+ break;
+ case CISTPL_NO_LINK:
+ HAS_LINK(tuple->Flags) = 0;
+ break;
+ }
+ if ((tuple->Attributes & TUPLE_RETURN_LINK) &&
+ (tuple->DesiredTuple == RETURN_FIRST_TUPLE))
+ break;
+ } else
+ if (tuple->DesiredTuple == RETURN_FIRST_TUPLE)
+ break;
+
+ if (link[0] == tuple->DesiredTuple)
+ break;
+ ofs += link[1] + 2;
+ }
+ if (i == MAX_TUPLES) {
+ dev_dbg(&s->dev, "cs: overrun in pcmcia_get_next_tuple\n");
+ return -ENOSPC;
+ }
-#define _MIN(a, b) (((a) < (b)) ? (a) : (b))
+ tuple->TupleCode = link[0];
+ tuple->TupleLink = link[1];
+ tuple->CISOffset = ofs + 2;
+ return 0;
+}
int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple)
{
- u_int len;
- int ret;
+ u_int len;
+ int ret;
- if (!s)
- return -EINVAL;
+ if (!s)
+ return -EINVAL;
- if (tuple->TupleLink < tuple->TupleOffset)
- return -ENOSPC;
- len = tuple->TupleLink - tuple->TupleOffset;
- tuple->TupleDataLen = tuple->TupleLink;
- if (len == 0)
+ if (tuple->TupleLink < tuple->TupleOffset)
+ return -ENOSPC;
+ len = tuple->TupleLink - tuple->TupleOffset;
+ tuple->TupleDataLen = tuple->TupleLink;
+ if (len == 0)
+ return 0;
+ ret = read_cis_cache(s, SPACE(tuple->Flags),
+ tuple->CISOffset + tuple->TupleOffset,
+ min(len, (u_int) tuple->TupleDataMax),
+ tuple->TupleData);
+ if (ret)
+ return -1;
return 0;
- ret = read_cis_cache(s, SPACE(tuple->Flags),
- tuple->CISOffset + tuple->TupleOffset,
- _MIN(len, tuple->TupleDataMax), tuple->TupleData);
- if (ret)
- return -1;
- return 0;
}
-/*======================================================================
-
- Parsing routines for individual tuples
-
-======================================================================*/
+/* Parsing routines for individual tuples */
static int parse_device(tuple_t *tuple, cistpl_device_t *device)
{
- int i;
- u_char scale;
- u_char *p, *q;
+ int i;
+ u_char scale;
+ u_char *p, *q;
- p = (u_char *)tuple->TupleData;
- q = p + tuple->TupleDataLen;
+ p = (u_char *)tuple->TupleData;
+ q = p + tuple->TupleDataLen;
- device->ndev = 0;
- for (i = 0; i < CISTPL_MAX_DEVICES; i++) {
+ device->ndev = 0;
+ for (i = 0; i < CISTPL_MAX_DEVICES; i++) {
- 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 7:
- if (++p == q)
- return -EINVAL;
- device->dev[i].speed = SPEED_CVT(*p);
- while (*p & 0x80)
+ 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 7:
if (++p == q)
return -EINVAL;
- break;
- default:
- return -EINVAL;
- }
+ device->dev[i].speed = SPEED_CVT(*p);
+ while (*p & 0x80)
+ if (++p == q)
+ return -EINVAL;
+ break;
+ default:
+ return -EINVAL;
+ }
- if (++p == q)
- return -EINVAL;
- if (*p == 0xff)
- break;
- scale = *p & 7;
- if (scale == 7)
- return -EINVAL;
- device->dev[i].size = ((*p >> 3) + 1) * (512 << (scale*2));
- device->ndev++;
- if (++p == q)
- break;
- }
+ if (++p == q)
+ return -EINVAL;
+ if (*p == 0xff)
+ break;
+ scale = *p & 7;
+ if (scale == 7)
+ return -EINVAL;
+ device->dev[i].size = ((*p >> 3) + 1) * (512 << (scale*2));
+ device->ndev++;
+ if (++p == q)
+ break;
+ }
- return 0;
+ return 0;
}
-/*====================================================================*/
static int parse_checksum(tuple_t *tuple, cistpl_checksum_t *csum)
{
- u_char *p;
- if (tuple->TupleDataLen < 5)
- return -EINVAL;
- p = (u_char *) tuple->TupleData;
- csum->addr = tuple->CISOffset + get_unaligned_le16(p) - 2;
- csum->len = get_unaligned_le16(p + 2);
- csum->sum = *(p + 4);
- return 0;
+ u_char *p;
+ if (tuple->TupleDataLen < 5)
+ return -EINVAL;
+ p = (u_char *) tuple->TupleData;
+ csum->addr = tuple->CISOffset + get_unaligned_le16(p) - 2;
+ csum->len = get_unaligned_le16(p + 2);
+ csum->sum = *(p + 4);
+ return 0;
}
-/*====================================================================*/
static int parse_longlink(tuple_t *tuple, cistpl_longlink_t *link)
{
- if (tuple->TupleDataLen < 4)
- return -EINVAL;
- link->addr = get_unaligned_le32(tuple->TupleData);
- return 0;
+ if (tuple->TupleDataLen < 4)
+ return -EINVAL;
+ link->addr = get_unaligned_le32(tuple->TupleData);
+ return 0;
}
-/*====================================================================*/
-static int parse_longlink_mfc(tuple_t *tuple,
- cistpl_longlink_mfc_t *link)
+static int parse_longlink_mfc(tuple_t *tuple, cistpl_longlink_mfc_t *link)
{
- u_char *p;
- int i;
-
- p = (u_char *)tuple->TupleData;
-
- link->nfn = *p; p++;
- if (tuple->TupleDataLen <= link->nfn*5)
- return -EINVAL;
- for (i = 0; i < link->nfn; i++) {
- link->fn[i].space = *p; p++;
- link->fn[i].addr = get_unaligned_le32(p);
- p += 4;
- }
- return 0;
+ u_char *p;
+ int i;
+
+ p = (u_char *)tuple->TupleData;
+
+ link->nfn = *p; p++;
+ if (tuple->TupleDataLen <= link->nfn*5)
+ return -EINVAL;
+ for (i = 0; i < link->nfn; i++) {
+ link->fn[i].space = *p; p++;
+ link->fn[i].addr = get_unaligned_le32(p);
+ p += 4;
+ }
+ return 0;
}
-/*====================================================================*/
static int parse_strings(u_char *p, u_char *q, int max,
char *s, u_char *ofs, u_char *found)
{
- int i, j, ns;
+ int i, j, ns;
- if (p == q)
- return -EINVAL;
- ns = 0; j = 0;
- for (i = 0; i < max; i++) {
- if (*p == 0xff)
- break;
- ofs[i] = j;
- ns++;
- for (;;) {
- s[j++] = (*p == 0xff) ? '\0' : *p;
- if ((*p == '\0') || (*p == 0xff))
- break;
- if (++p == q)
- return -EINVAL;
+ if (p == q)
+ return -EINVAL;
+ ns = 0; j = 0;
+ for (i = 0; i < max; i++) {
+ if (*p == 0xff)
+ break;
+ ofs[i] = j;
+ ns++;
+ for (;;) {
+ s[j++] = (*p == 0xff) ? '\0' : *p;
+ 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;
- return 0;
- } else {
+ if (found) {
+ *found = ns;
+ return 0;
+ }
+
return (ns == max) ? 0 : -EINVAL;
- }
}
-/*====================================================================*/
static int parse_vers_1(tuple_t *tuple, cistpl_vers_1_t *vers_1)
{
- u_char *p, *q;
+ u_char *p, *q;
- p = (u_char *)tuple->TupleData;
- q = p + tuple->TupleDataLen;
+ p = (u_char *)tuple->TupleData;
+ q = p + tuple->TupleDataLen;
- vers_1->major = *p; p++;
- vers_1->minor = *p; p++;
- if (p >= q)
- return -EINVAL;
+ vers_1->major = *p; p++;
+ vers_1->minor = *p; p++;
+ if (p >= q)
+ return -EINVAL;
- return parse_strings(p, q, CISTPL_VERS_1_MAX_PROD_STRINGS,
- vers_1->str, vers_1->ofs, &vers_1->ns);
+ return parse_strings(p, q, CISTPL_VERS_1_MAX_PROD_STRINGS,
+ vers_1->str, vers_1->ofs, &vers_1->ns);
}
-/*====================================================================*/
static int parse_altstr(tuple_t *tuple, cistpl_altstr_t *altstr)
{
- u_char *p, *q;
+ u_char *p, *q;
- p = (u_char *)tuple->TupleData;
- q = p + tuple->TupleDataLen;
+ p = (u_char *)tuple->TupleData;
+ q = p + tuple->TupleDataLen;
- return parse_strings(p, q, CISTPL_MAX_ALTSTR_STRINGS,
- altstr->str, altstr->ofs, &altstr->ns);
+ return parse_strings(p, q, CISTPL_MAX_ALTSTR_STRINGS,
+ altstr->str, altstr->ofs, &altstr->ns);
}
-/*====================================================================*/
static int parse_jedec(tuple_t *tuple, cistpl_jedec_t *jedec)
{
- u_char *p, *q;
- int nid;
+ u_char *p, *q;
+ int nid;
- p = (u_char *)tuple->TupleData;
- q = p + tuple->TupleDataLen;
+ p = (u_char *)tuple->TupleData;
+ q = p + tuple->TupleDataLen;
- for (nid = 0; nid < CISTPL_MAX_DEVICES; nid++) {
- if (p > q-2)
- break;
- jedec->id[nid].mfr = p[0];
- jedec->id[nid].info = p[1];
- p += 2;
- }
- jedec->nid = nid;
- return 0;
+ for (nid = 0; nid < CISTPL_MAX_DEVICES; nid++) {
+ if (p > q-2)
+ break;
+ jedec->id[nid].mfr = p[0];
+ jedec->id[nid].info = p[1];
+ p += 2;
+ }
+ jedec->nid = nid;
+ return 0;
}
-/*====================================================================*/
static int parse_manfid(tuple_t *tuple, cistpl_manfid_t *m)
{
- if (tuple->TupleDataLen < 4)
- return -EINVAL;
- m->manf = get_unaligned_le16(tuple->TupleData);
- m->card = get_unaligned_le16(tuple->TupleData + 2);
- return 0;
+ if (tuple->TupleDataLen < 4)
+ return -EINVAL;
+ m->manf = get_unaligned_le16(tuple->TupleData);
+ m->card = get_unaligned_le16(tuple->TupleData + 2);
+ return 0;
}
-/*====================================================================*/
static int parse_funcid(tuple_t *tuple, cistpl_funcid_t *f)
{
- u_char *p;
- if (tuple->TupleDataLen < 2)
- return -EINVAL;
- p = (u_char *)tuple->TupleData;
- f->func = p[0];
- f->sysinit = p[1];
- return 0;
+ u_char *p;
+ if (tuple->TupleDataLen < 2)
+ return -EINVAL;
+ p = (u_char *)tuple->TupleData;
+ f->func = p[0];
+ f->sysinit = p[1];
+ return 0;
}
-/*====================================================================*/
static int parse_funce(tuple_t *tuple, cistpl_funce_t *f)
{
- u_char *p;
- int i;
- if (tuple->TupleDataLen < 1)
- return -EINVAL;
- p = (u_char *)tuple->TupleData;
- f->type = p[0];
- for (i = 1; i < tuple->TupleDataLen; i++)
- f->data[i-1] = p[i];
- return 0;
+ u_char *p;
+ int i;
+ if (tuple->TupleDataLen < 1)
+ return -EINVAL;
+ p = (u_char *)tuple->TupleData;
+ f->type = p[0];
+ for (i = 1; i < tuple->TupleDataLen; i++)
+ f->data[i-1] = p[i];
+ return 0;
}
-/*====================================================================*/
static int parse_config(tuple_t *tuple, cistpl_config_t *config)
{
- int rasz, rmsz, i;
- u_char *p;
-
- p = (u_char *)tuple->TupleData;
- rasz = *p & 0x03;
- rmsz = (*p & 0x3c) >> 2;
- if (tuple->TupleDataLen < rasz+rmsz+4)
- return -EINVAL;
- config->last_idx = *(++p);
- p++;
- config->base = 0;
- for (i = 0; i <= rasz; i++)
- config->base += p[i] << (8*i);
- p += rasz+1;
- for (i = 0; i < 4; i++)
- config->rmask[i] = 0;
- for (i = 0; i <= rmsz; i++)
- config->rmask[i>>2] += p[i] << (8*(i%4));
- config->subtuples = tuple->TupleDataLen - (rasz+rmsz+4);
- return 0;
+ int rasz, rmsz, i;
+ u_char *p;
+
+ p = (u_char *)tuple->TupleData;
+ rasz = *p & 0x03;
+ rmsz = (*p & 0x3c) >> 2;
+ if (tuple->TupleDataLen < rasz+rmsz+4)
+ return -EINVAL;
+ config->last_idx = *(++p);
+ p++;
+ config->base = 0;
+ for (i = 0; i <= rasz; i++)
+ config->base += p[i] << (8*i);
+ p += rasz+1;
+ for (i = 0; i < 4; i++)
+ config->rmask[i] = 0;
+ for (i = 0; i <= rmsz; i++)
+ config->rmask[i>>2] += p[i] << (8*(i%4));
+ config->subtuples = tuple->TupleDataLen - (rasz+rmsz+4);
+ return 0;
}
-/*======================================================================
+/* The following routines are all used to parse the nightmarish
+ * config table entries.
+ */
+
+static u_char *parse_power(u_char *p, u_char *q, cistpl_power_t *pwr)
+{
+ int i;
+ u_int scale;
- The following routines are all used to parse the nightmarish
- config table entries.
+ 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;
+ pwr->param[i] = POWER_CVT(*p);
+ scale = POWER_SCALE(*p);
+ while (*p & 0x80) {
+ if (++p == q)
+ return NULL;
+ if ((*p & 0x7f) < 100)
+ pwr->param[i] +=
+ (*p & 0x7f) * scale / 100;
+ else if (*p == 0x7d)
+ pwr->flags |= CISTPL_POWER_HIGHZ_OK;
+ else if (*p == 0x7e)
+ pwr->param[i] = 0;
+ else if (*p == 0x7f)
+ pwr->flags |= CISTPL_POWER_HIGHZ_REQ;
+ else
+ return NULL;
+ }
+ p++;
+ }
+ return p;
+}
-======================================================================*/
-static u_char *parse_power(u_char *p, u_char *q,
- cistpl_power_t *pwr)
+static u_char *parse_timing(u_char *p, u_char *q, cistpl_timing_t *timing)
{
- int i;
- u_int scale;
-
- 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;
- pwr->param[i] = POWER_CVT(*p);
- scale = POWER_SCALE(*p);
- while (*p & 0x80) {
+ u_char scale;
+
+ if (p == q)
+ return NULL;
+ scale = *p;
+ if ((scale & 3) != 3) {
if (++p == q)
return NULL;
- if ((*p & 0x7f) < 100)
- pwr->param[i] += (*p & 0x7f) * scale / 100;
- else if (*p == 0x7d)
- pwr->flags |= CISTPL_POWER_HIGHZ_OK;
- else if (*p == 0x7e)
- pwr->param[i] = 0;
- else if (*p == 0x7f)
- pwr->flags |= CISTPL_POWER_HIGHZ_REQ;
- else
- return NULL;
- }
- p++;
- }
- return p;
+ 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;
+ timing->ready = SPEED_CVT(*p);
+ timing->rdyscale = exponent[scale & 7];
+ } else
+ timing->ready = 0;
+ scale >>= 3;
+ if (scale != 7) {
+ if (++p == q)
+ return NULL;
+ timing->reserved = SPEED_CVT(*p);
+ timing->rsvscale = exponent[scale];
+ } else
+ timing->reserved = 0;
+ p++;
+ return p;
}
-/*====================================================================*/
-static u_char *parse_timing(u_char *p, u_char *q,
- cistpl_timing_t *timing)
+static u_char *parse_io(u_char *p, u_char *q, cistpl_io_t *io)
{
- u_char scale;
+ int i, j, bsz, lsz;
- if (p == q)
- return NULL;
- scale = *p;
- if ((scale & 3) != 3) {
- 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)
+ if (p == q)
return NULL;
- timing->ready = SPEED_CVT(*p);
- timing->rdyscale = exponent[scale & 7];
- } else
- timing->ready = 0;
- scale >>= 3;
- if (scale != 7) {
+ io->flags = *p;
+
+ if (!(*p & 0x80)) {
+ io->nwin = 1;
+ io->win[0].base = 0;
+ io->win[0].len = (1 << (io->flags & CISTPL_IO_LINES_MASK));
+ return p+1;
+ }
+
if (++p == q)
return NULL;
- timing->reserved = SPEED_CVT(*p);
- timing->rsvscale = exponent[scale];
- } else
- timing->reserved = 0;
- p++;
- return p;
-}
-
-/*====================================================================*/
+ io->nwin = (*p & 0x0f) + 1;
+ bsz = (*p & 0x30) >> 4;
+ if (bsz == 3)
+ bsz++;
+ lsz = (*p & 0xc0) >> 6;
+ if (lsz == 3)
+ lsz++;
+ p++;
-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;
- io->flags = *p;
-
- if (!(*p & 0x80)) {
- io->nwin = 1;
- io->win[0].base = 0;
- io->win[0].len = (1 << (io->flags & CISTPL_IO_LINES_MASK));
- return p+1;
- }
-
- if (++p == q)
- return NULL;
- io->nwin = (*p & 0x0f) + 1;
- bsz = (*p & 0x30) >> 4;
- if (bsz == 3)
- bsz++;
- lsz = (*p & 0xc0) >> 6;
- 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;
- io->win[i].base += *p << (j*8);
- }
- for (j = 0; j < lsz; j++, p++) {
- if (p == q)
- return NULL;
- io->win[i].len += *p << (j*8);
+ 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;
+ io->win[i].base += *p << (j*8);
+ }
+ for (j = 0; j < lsz; j++, p++) {
+ if (p == q)
+ return NULL;
+ io->win[i].len += *p << (j*8);
+ }
}
- }
- return p;
+ return p;
}
-/*====================================================================*/
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;
-
- mem->nwin = (*p & 0x07) + 1;
- lsz = (*p & 0x18) >> 3;
- asz = (*p & 0x60) >> 5;
- has_ha = (*p & 0x80);
- 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;
- len += *p << (j*8);
- }
- for (j = 0; j < asz; j++, p++) {
- if (p == q)
- return NULL;
- ca += *p << (j*8);
+ int i, j, asz, lsz, has_ha;
+ u_int len, ca, ha;
+
+ 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;
+
+ for (i = 0; i < mem->nwin; i++) {
+ len = ca = ha = 0;
+ for (j = 0; j < lsz; j++, p++) {
+ if (p == q)
+ return NULL;
+ len += *p << (j*8);
+ }
+ for (j = 0; j < asz; j++, p++) {
+ if (p == q)
+ return NULL;
+ ca += *p << (j*8);
+ }
+ if (has_ha)
+ for (j = 0; j < asz; j++, p++) {
+ if (p == q)
+ return NULL;
+ ha += *p << (j*8);
+ }
+ mem->win[i].len = len << 8;
+ mem->win[i].card_addr = ca << 8;
+ mem->win[i].host_addr = ha << 8;
}
- if (has_ha)
- for (j = 0; j < asz; j++, p++) {
- if (p == q)
- return NULL;
- ha += *p << (j*8);
- }
- mem->win[i].len = len << 8;
- mem->win[i].card_addr = ca << 8;
- mem->win[i].host_addr = ha << 8;
- }
- return p;
+ return p;
}
-/*====================================================================*/
static u_char *parse_irq(u_char *p, u_char *q, cistpl_irq_t *irq)
{
- if (p == q)
- return NULL;
- irq->IRQInfo1 = *p; p++;
- if (irq->IRQInfo1 & IRQ_INFO2_VALID) {
- if (p+2 > q)
+ if (p == q)
return NULL;
- irq->IRQInfo2 = (p[1]<<8) + p[0];
- p += 2;
- }
- return p;
+ irq->IRQInfo1 = *p; p++;
+ if (irq->IRQInfo1 & IRQ_INFO2_VALID) {
+ if (p+2 > q)
+ return NULL;
+ irq->IRQInfo2 = (p[1]<<8) + p[0];
+ p += 2;
+ }
+ return p;
}
-/*====================================================================*/
static int parse_cftable_entry(tuple_t *tuple,
cistpl_cftable_entry_t *entry)
{
- u_char *p, *q, features;
-
- p = tuple->TupleData;
- q = p + tuple->TupleDataLen;
- entry->index = *p & 0x3f;
- entry->flags = 0;
- if (*p & 0x40)
- entry->flags |= CISTPL_CFTABLE_DEFAULT;
- if (*p & 0x80) {
- if (++p == q)
- return -EINVAL;
- if (*p & 0x10)
- entry->flags |= CISTPL_CFTABLE_BVDS;
- if (*p & 0x20)
- entry->flags |= CISTPL_CFTABLE_WP;
+ u_char *p, *q, features;
+
+ p = tuple->TupleData;
+ q = p + tuple->TupleDataLen;
+ entry->index = *p & 0x3f;
+ entry->flags = 0;
if (*p & 0x40)
- entry->flags |= CISTPL_CFTABLE_RDYBSY;
- if (*p & 0x80)
- entry->flags |= CISTPL_CFTABLE_MWAIT;
- entry->interface = *p & 0x0f;
- } else
- entry->interface = 0;
-
- /* Process optional features */
- if (++p == q)
- return -EINVAL;
- features = *p; p++;
-
- /* Power options */
- if ((features & 3) > 0) {
- p = parse_power(p, q, &entry->vcc);
- if (p == NULL)
- return -EINVAL;
- } else
- entry->vcc.present = 0;
- if ((features & 3) > 1) {
- p = parse_power(p, q, &entry->vpp1);
- if (p == NULL)
- return -EINVAL;
- } else
- entry->vpp1.present = 0;
- if ((features & 3) > 2) {
- p = parse_power(p, q, &entry->vpp2);
- if (p == NULL)
- return -EINVAL;
- } else
- entry->vpp2.present = 0;
+ entry->flags |= CISTPL_CFTABLE_DEFAULT;
+ if (*p & 0x80) {
+ if (++p == q)
+ return -EINVAL;
+ if (*p & 0x10)
+ entry->flags |= CISTPL_CFTABLE_BVDS;
+ if (*p & 0x20)
+ entry->flags |= CISTPL_CFTABLE_WP;
+ if (*p & 0x40)
+ entry->flags |= CISTPL_CFTABLE_RDYBSY;
+ if (*p & 0x80)
+ entry->flags |= CISTPL_CFTABLE_MWAIT;
+ entry->interface = *p & 0x0f;
+ } else
+ entry->interface = 0;
- /* Timing options */
- if (features & 0x04) {
- p = parse_timing(p, q, &entry->timing);
- if (p == NULL)
- return -EINVAL;
- } else {
- entry->timing.wait = 0;
- entry->timing.ready = 0;
- entry->timing.reserved = 0;
- }
-
- /* I/O window options */
- if (features & 0x08) {
- p = parse_io(p, q, &entry->io);
- if (p == NULL)
+ /* Process optional features */
+ if (++p == q)
return -EINVAL;
- } else
- entry->io.nwin = 0;
+ features = *p; p++;
- /* Interrupt options */
- if (features & 0x10) {
- p = parse_irq(p, q, &entry->irq);
- if (p == NULL)
- return -EINVAL;
- } else
- entry->irq.IRQInfo1 = 0;
-
- switch (features & 0x60) {
- case 0x00:
- entry->mem.nwin = 0;
- break;
- case 0x20:
- entry->mem.nwin = 1;
- entry->mem.win[0].len = get_unaligned_le16(p) << 8;
- entry->mem.win[0].card_addr = 0;
- entry->mem.win[0].host_addr = 0;
- p += 2;
- if (p > q)
- return -EINVAL;
- break;
- case 0x40:
- entry->mem.nwin = 1;
- entry->mem.win[0].len = get_unaligned_le16(p) << 8;
- entry->mem.win[0].card_addr = get_unaligned_le16(p + 2) << 8;
- entry->mem.win[0].host_addr = 0;
- p += 4;
- if (p > q)
- return -EINVAL;
- break;
- case 0x60:
- p = parse_mem(p, q, &entry->mem);
- if (p == NULL)
- return -EINVAL;
- break;
- }
+ /* Power options */
+ if ((features & 3) > 0) {
+ p = parse_power(p, q, &entry->vcc);
+ if (p == NULL)
+ return -EINVAL;
+ } else
+ entry->vcc.present = 0;
+ if ((features & 3) > 1) {
+ p = parse_power(p, q, &entry->vpp1);
+ if (p == NULL)
+ return -EINVAL;
+ } else
+ entry->vpp1.present = 0;
+ if ((features & 3) > 2) {
+ p = parse_power(p, q, &entry->vpp2);
+ if (p == NULL)
+ return -EINVAL;
+ } else
+ entry->vpp2.present = 0;
- /* Misc features */
- if (features & 0x80) {
- if (p == q)
- return -EINVAL;
- entry->flags |= (*p << 8);
- while (*p & 0x80)
- if (++p == q)
- return -EINVAL;
- p++;
- }
+ /* Timing options */
+ if (features & 0x04) {
+ p = parse_timing(p, q, &entry->timing);
+ if (p == NULL)
+ return -EINVAL;
+ } else {
+ entry->timing.wait = 0;
+ entry->timing.ready = 0;
+ entry->timing.reserved = 0;
+ }
- entry->subtuples = q-p;
+ /* I/O window options */
+ if (features & 0x08) {
+ p = parse_io(p, q, &entry->io);
+ if (p == NULL)
+ return -EINVAL;
+ } else
+ entry->io.nwin = 0;
+
+ /* Interrupt options */
+ if (features & 0x10) {
+ p = parse_irq(p, q, &entry->irq);
+ if (p == NULL)
+ return -EINVAL;
+ } else
+ entry->irq.IRQInfo1 = 0;
+
+ switch (features & 0x60) {
+ case 0x00:
+ entry->mem.nwin = 0;
+ break;
+ case 0x20:
+ entry->mem.nwin = 1;
+ entry->mem.win[0].len = get_unaligned_le16(p) << 8;
+ entry->mem.win[0].card_addr = 0;
+ entry->mem.win[0].host_addr = 0;
+ p += 2;
+ if (p > q)
+ return -EINVAL;
+ break;
+ case 0x40:
+ entry->mem.nwin = 1;
+ entry->mem.win[0].len = get_unaligned_le16(p) << 8;
+ entry->mem.win[0].card_addr = get_unaligned_le16(p + 2) << 8;
+ entry->mem.win[0].host_addr = 0;
+ p += 4;
+ if (p > q)
+ return -EINVAL;
+ break;
+ case 0x60:
+ p = parse_mem(p, q, &entry->mem);
+ if (p == NULL)
+ return -EINVAL;
+ break;
+ }
+
+ /* Misc features */
+ if (features & 0x80) {
+ if (p == q)
+ return -EINVAL;
+ entry->flags |= (*p << 8);
+ while (*p & 0x80)
+ if (++p == q)
+ return -EINVAL;
+ p++;
+ }
+
+ entry->subtuples = q-p;
- return 0;
+ return 0;
}
-/*====================================================================*/
static int parse_device_geo(tuple_t *tuple, cistpl_device_geo_t *geo)
{
- u_char *p, *q;
- int n;
+ u_char *p, *q;
+ int n;
- p = (u_char *)tuple->TupleData;
- q = p + tuple->TupleDataLen;
+ p = (u_char *)tuple->TupleData;
+ q = p + tuple->TupleDataLen;
- for (n = 0; n < CISTPL_MAX_DEVICES; n++) {
- 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);
- geo->geo[n].write_block = 1 << (p[3]-1);
- geo->geo[n].partition = 1 << (p[4]-1);
- geo->geo[n].interleave = 1 << (p[5]-1);
- p += 6;
- }
- geo->ngeo = n;
- return 0;
+ for (n = 0; n < CISTPL_MAX_DEVICES; n++) {
+ 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);
+ geo->geo[n].write_block = 1 << (p[3]-1);
+ geo->geo[n].partition = 1 << (p[4]-1);
+ geo->geo[n].interleave = 1 << (p[5]-1);
+ p += 6;
+ }
+ geo->ngeo = n;
+ return 0;
}
-/*====================================================================*/
static int parse_vers_2(tuple_t *tuple, cistpl_vers_2_t *v2)
{
- u_char *p, *q;
-
- 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->vspec8 = p[6];
- v2->vspec9 = p[7];
- v2->nhdr = p[8];
- p += 9;
- return parse_strings(p, q, 2, v2->str, &v2->vendor, NULL);
+ u_char *p, *q;
+
+ 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->vspec8 = p[6];
+ v2->vspec9 = p[7];
+ v2->nhdr = p[8];
+ p += 9;
+ return parse_strings(p, q, 2, v2->str, &v2->vendor, NULL);
}
-/*====================================================================*/
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)
- return -EINVAL;
- org->data_org = *p;
- if (++p == q)
- return -EINVAL;
- for (i = 0; i < 30; i++) {
- org->desc[i] = *p;
- if (*p == '\0')
- break;
+ u_char *p, *q;
+ int i;
+
+ p = tuple->TupleData;
+ q = p + tuple->TupleDataLen;
+ if (p == q)
+ return -EINVAL;
+ org->data_org = *p;
if (++p == q)
return -EINVAL;
- }
- return 0;
+ for (i = 0; i < 30; i++) {
+ org->desc[i] = *p;
+ if (*p == '\0')
+ break;
+ if (++p == q)
+ return -EINVAL;
+ }
+ return 0;
}
-/*====================================================================*/
static int parse_format(tuple_t *tuple, cistpl_format_t *fmt)
{
- u_char *p;
+ u_char *p;
- if (tuple->TupleDataLen < 10)
- return -EINVAL;
+ if (tuple->TupleDataLen < 10)
+ return -EINVAL;
- p = tuple->TupleData;
+ p = tuple->TupleData;
- fmt->type = p[0];
- fmt->edc = p[1];
- fmt->offset = get_unaligned_le32(p + 2);
- fmt->length = get_unaligned_le32(p + 6);
+ fmt->type = p[0];
+ fmt->edc = p[1];
+ fmt->offset = get_unaligned_le32(p + 2);
+ fmt->length = get_unaligned_le32(p + 6);
- return 0;
+ return 0;
}
-/*====================================================================*/
int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse)
{
- int ret = 0;
-
- if (tuple->TupleDataLen > tuple->TupleDataMax)
- return -EINVAL;
- switch (tuple->TupleCode) {
- case CISTPL_DEVICE:
- case CISTPL_DEVICE_A:
- ret = parse_device(tuple, &parse->device);
- break;
- case CISTPL_CHECKSUM:
- ret = parse_checksum(tuple, &parse->checksum);
- break;
- case CISTPL_LONGLINK_A:
- case CISTPL_LONGLINK_C:
- ret = parse_longlink(tuple, &parse->longlink);
- break;
- case CISTPL_LONGLINK_MFC:
- ret = parse_longlink_mfc(tuple, &parse->longlink_mfc);
- break;
- case CISTPL_VERS_1:
- ret = parse_vers_1(tuple, &parse->version_1);
- break;
- case CISTPL_ALTSTR:
- ret = parse_altstr(tuple, &parse->altstr);
- break;
- case CISTPL_JEDEC_A:
- case CISTPL_JEDEC_C:
- ret = parse_jedec(tuple, &parse->jedec);
- break;
- case CISTPL_MANFID:
- ret = parse_manfid(tuple, &parse->manfid);
- break;
- case CISTPL_FUNCID:
- ret = parse_funcid(tuple, &parse->funcid);
- break;
- case CISTPL_FUNCE:
- ret = parse_funce(tuple, &parse->funce);
- break;
- case CISTPL_CONFIG:
- ret = parse_config(tuple, &parse->config);
- break;
- case CISTPL_CFTABLE_ENTRY:
- ret = parse_cftable_entry(tuple, &parse->cftable_entry);
- break;
- case CISTPL_DEVICE_GEO:
- case CISTPL_DEVICE_GEO_A:
- ret = parse_device_geo(tuple, &parse->device_geo);
- break;
- case CISTPL_VERS_2:
- ret = parse_vers_2(tuple, &parse->vers_2);
- break;
- case CISTPL_ORG:
- ret = parse_org(tuple, &parse->org);
- break;
- case CISTPL_FORMAT:
- case CISTPL_FORMAT_A:
- ret = parse_format(tuple, &parse->format);
- break;
- case CISTPL_NO_LINK:
- case CISTPL_LINKTARGET:
- ret = 0;
- break;
- default:
- ret = -EINVAL;
- break;
- }
- if (ret)
- pr_debug("parse_tuple failed %d\n", ret);
- return ret;
+ int ret = 0;
+
+ if (tuple->TupleDataLen > tuple->TupleDataMax)
+ return -EINVAL;
+ switch (tuple->TupleCode) {
+ case CISTPL_DEVICE:
+ case CISTPL_DEVICE_A:
+ ret = parse_device(tuple, &parse->device);
+ break;
+ case CISTPL_CHECKSUM:
+ ret = parse_checksum(tuple, &parse->checksum);
+ break;
+ case CISTPL_LONGLINK_A:
+ case CISTPL_LONGLINK_C:
+ ret = parse_longlink(tuple, &parse->longlink);
+ break;
+ case CISTPL_LONGLINK_MFC:
+ ret = parse_longlink_mfc(tuple, &parse->longlink_mfc);
+ break;
+ case CISTPL_VERS_1:
+ ret = parse_vers_1(tuple, &parse->version_1);
+ break;
+ case CISTPL_ALTSTR:
+ ret = parse_altstr(tuple, &parse->altstr);
+ break;
+ case CISTPL_JEDEC_A:
+ case CISTPL_JEDEC_C:
+ ret = parse_jedec(tuple, &parse->jedec);
+ break;
+ case CISTPL_MANFID:
+ ret = parse_manfid(tuple, &parse->manfid);
+ break;
+ case CISTPL_FUNCID:
+ ret = parse_funcid(tuple, &parse->funcid);
+ break;
+ case CISTPL_FUNCE:
+ ret = parse_funce(tuple, &parse->funce);
+ break;
+ case CISTPL_CONFIG:
+ ret = parse_config(tuple, &parse->config);
+ break;
+ case CISTPL_CFTABLE_ENTRY:
+ ret = parse_cftable_entry(tuple, &parse->cftable_entry);
+ break;
+ case CISTPL_DEVICE_GEO:
+ case CISTPL_DEVICE_GEO_A:
+ ret = parse_device_geo(tuple, &parse->device_geo);
+ break;
+ case CISTPL_VERS_2:
+ ret = parse_vers_2(tuple, &parse->vers_2);
+ break;
+ case CISTPL_ORG:
+ ret = parse_org(tuple, &parse->org);
+ break;
+ case CISTPL_FORMAT:
+ case CISTPL_FORMAT_A:
+ ret = parse_format(tuple, &parse->format);
+ break;
+ case CISTPL_NO_LINK:
+ case CISTPL_LINKTARGET:
+ ret = 0;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ if (ret)
+ pr_debug("parse_tuple failed %d\n", ret);
+ return ret;
}
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)
+/**
+ * pccard_read_tuple() - internal CIS tuple access
+ * @s: the struct pcmcia_socket where the card is inserted
+ * @function: the device function we loop for
+ * @code: which CIS code shall we look for?
+ * @parse: buffer where the tuple shall be parsed (or NULL, if no parse)
+ *
+ * pccard_read_tuple() reads out one tuple and attempts to parse it
+ */
+int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function,
+ cisdata_t code, void *parse)
{
- tuple_t tuple;
- cisdata_t *buf;
- int ret;
-
- buf = kmalloc(256, GFP_KERNEL);
- if (buf == NULL) {
- dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n");
- return -ENOMEM;
- }
- tuple.DesiredTuple = code;
- tuple.Attributes = 0;
- if (function == BIND_FN_ALL)
- tuple.Attributes = TUPLE_RETURN_COMMON;
- ret = pccard_get_first_tuple(s, function, &tuple);
- if (ret != 0)
- goto done;
- tuple.TupleData = buf;
- tuple.TupleOffset = 0;
- tuple.TupleDataMax = 255;
- ret = pccard_get_tuple_data(s, &tuple);
- if (ret != 0)
- goto done;
- ret = pcmcia_parse_tuple(&tuple, parse);
+ tuple_t tuple;
+ cisdata_t *buf;
+ int ret;
+
+ buf = kmalloc(256, GFP_KERNEL);
+ if (buf == NULL) {
+ dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n");
+ return -ENOMEM;
+ }
+ tuple.DesiredTuple = code;
+ tuple.Attributes = 0;
+ if (function == BIND_FN_ALL)
+ tuple.Attributes = TUPLE_RETURN_COMMON;
+ ret = pccard_get_first_tuple(s, function, &tuple);
+ if (ret != 0)
+ goto done;
+ tuple.TupleData = buf;
+ tuple.TupleOffset = 0;
+ tuple.TupleDataMax = 255;
+ ret = pccard_get_tuple_data(s, &tuple);
+ if (ret != 0)
+ goto done;
+ ret = pcmcia_parse_tuple(&tuple, parse);
done:
- kfree(buf);
- return ret;
+ kfree(buf);
+ return ret;
}
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff