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ieee1394: csr1212: coding style

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Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Stefan Richter 2007-03-14 00:26:38 +01:00
parent fd2f3bddae
commit c868ae2a1d
2 changed files with 133 additions and 113 deletions
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215
drivers/ieee1394/csr1212.c
View File

@ -143,10 +143,9 @@ csr1212_find_keyval(struct csr1212_keyval *dir, struct csr1212_keyval *kv)
struct csr1212_dentry *pos;
for (pos = dir->value.directory.dentries_head;
pos != NULL; pos = pos->next) {
pos != NULL; pos = pos->next)
if (pos->kv == kv)
return pos;
}
return NULL;
}
@ -155,10 +154,9 @@ csr1212_find_keyval_offset(struct csr1212_keyval *kv_list, u32 offset)
{
struct csr1212_keyval *kv;
for (kv = kv_list->next; kv && (kv != kv_list); kv = kv->next) {
for (kv = kv_list->next; kv && (kv != kv_list); kv = kv->next)
if (kv->offset == offset)
return kv;
}
return NULL;
}
@ -238,8 +236,9 @@ static struct csr1212_keyval *csr1212_new_keyval(u8 type, u8 key)
struct csr1212_keyval *csr1212_new_immediate(u8 key, u32 value)
{
struct csr1212_keyval *kv = csr1212_new_keyval(CSR1212_KV_TYPE_IMMEDIATE, key);
struct csr1212_keyval *kv;
kv = csr1212_new_keyval(CSR1212_KV_TYPE_IMMEDIATE, key);
if (!kv)
return NULL;
@ -251,8 +250,9 @@ struct csr1212_keyval *csr1212_new_immediate(u8 key, u32 value)
static struct csr1212_keyval *
csr1212_new_leaf(u8 key, const void *data, size_t data_len)
{
struct csr1212_keyval *kv = csr1212_new_keyval(CSR1212_KV_TYPE_LEAF, key);
struct csr1212_keyval *kv;
kv = csr1212_new_keyval(CSR1212_KV_TYPE_LEAF, key);
if (!kv)
return NULL;
@ -279,8 +279,9 @@ csr1212_new_leaf(u8 key, const void *data, size_t data_len)
static struct csr1212_keyval *
csr1212_new_csr_offset(u8 key, u32 csr_offset)
{
struct csr1212_keyval *kv = csr1212_new_keyval(CSR1212_KV_TYPE_CSR_OFFSET, key);
struct csr1212_keyval *kv;
kv = csr1212_new_keyval(CSR1212_KV_TYPE_CSR_OFFSET, key);
if (!kv)
return NULL;
@ -293,8 +294,9 @@ csr1212_new_csr_offset(u8 key, u32 csr_offset)
struct csr1212_keyval *csr1212_new_directory(u8 key)
{
struct csr1212_keyval *kv = csr1212_new_keyval(CSR1212_KV_TYPE_DIRECTORY, key);
struct csr1212_keyval *kv;
kv = csr1212_new_keyval(CSR1212_KV_TYPE_DIRECTORY, key);
if (!kv)
return NULL;
@ -316,7 +318,7 @@ void csr1212_associate_keyval(struct csr1212_keyval *kv,
associate->key.id != CSR1212_KV_ID_EXTENDED_DATA &&
associate->key.id < 0x30) ||
(kv->key.id == CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID &&
associate->key.id != CSR1212_KV_ID_EXTENDED_KEY) ||
associate->key.id != CSR1212_KV_ID_EXTENDED_KEY) ||
(kv->key.id == CSR1212_KV_ID_EXTENDED_KEY &&
associate->key.id != CSR1212_KV_ID_EXTENDED_DATA) ||
(associate->key.id == CSR1212_KV_ID_EXTENDED_KEY &&
@ -543,11 +545,13 @@ static void csr1212_destroy_keyval(struct csr1212_keyval *kv)
a = k->associate;
if (k->key.type == CSR1212_KV_TYPE_DIRECTORY) {
/* If the current entry is a directory, then move all
/* If the current entry is a directory, move all
* the entries to the destruction list. */
if (k->value.directory.dentries_head) {
tail->next = k->value.directory.dentries_head;
k->value.directory.dentries_head->prev = tail;
tail->next =
k->value.directory.dentries_head;
k->value.directory.dentries_head->prev =
tail;
tail = k->value.directory.dentries_tail;
}
}
@ -557,12 +561,12 @@ static void csr1212_destroy_keyval(struct csr1212_keyval *kv)
head = head->next;
if (head) {
if (head->prev && head->prev != &dentry) {
if (head->prev && head->prev != &dentry)
CSR1212_FREE(head->prev);
}
head->prev = NULL;
} else if (tail != &dentry)
} else if (tail != &dentry) {
CSR1212_FREE(tail);
}
}
}
@ -611,30 +615,34 @@ static int csr1212_append_new_cache(struct csr1212_csr *csr, size_t romsize)
/* ROM size must be a multiple of csr->max_rom */
romsize = (romsize + (csr->max_rom - 1)) & ~(csr->max_rom - 1);
csr_addr = csr->ops->allocate_addr_range(romsize, csr->max_rom, csr->private);
if (csr_addr == CSR1212_INVALID_ADDR_SPACE) {
csr_addr = csr->ops->allocate_addr_range(romsize, csr->max_rom,
csr->private);
if (csr_addr == CSR1212_INVALID_ADDR_SPACE)
return -ENOMEM;
}
if (csr_addr < CSR1212_REGISTER_SPACE_BASE) {
/* Invalid address returned from allocate_addr_range(). */
csr->ops->release_addr(csr_addr, csr->private);
return -ENOMEM;
}
cache = csr1212_rom_cache_malloc(csr_addr - CSR1212_REGISTER_SPACE_BASE, romsize);
cache = csr1212_rom_cache_malloc(csr_addr - CSR1212_REGISTER_SPACE_BASE,
romsize);
if (!cache) {
csr->ops->release_addr(csr_addr, csr->private);
return -ENOMEM;
}
cache->ext_rom = csr1212_new_keyval(CSR1212_KV_TYPE_LEAF, CSR1212_KV_ID_EXTENDED_ROM);
cache->ext_rom = csr1212_new_keyval(CSR1212_KV_TYPE_LEAF,
CSR1212_KV_ID_EXTENDED_ROM);
if (!cache->ext_rom) {
csr->ops->release_addr(csr_addr, csr->private);
CSR1212_FREE(cache);
return -ENOMEM;
}
if (csr1212_attach_keyval_to_directory(csr->root_kv, cache->ext_rom) != CSR1212_SUCCESS) {
if (csr1212_attach_keyval_to_directory(csr->root_kv, cache->ext_rom) !=
CSR1212_SUCCESS) {
csr1212_release_keyval(cache->ext_rom);
csr->ops->release_addr(csr_addr, csr->private);
CSR1212_FREE(cache);
@ -665,7 +673,8 @@ static void csr1212_remove_cache(struct csr1212_csr *csr,
cache->next->prev = cache->prev;
if (cache->ext_rom) {
csr1212_detach_keyval_from_directory(csr->root_kv, cache->ext_rom);
csr1212_detach_keyval_from_directory(csr->root_kv,
cache->ext_rom);
csr1212_release_keyval(cache->ext_rom);
}
@ -685,28 +694,29 @@ static int csr1212_generate_layout_subdir(struct csr1212_keyval *dir,
dentry = dentry->next) {
for (dkv = dentry->kv; dkv; dkv = dkv->associate) {
/* Special Case: Extended Key Specifier_ID */
if (dkv->key.id == CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID) {
if (last_extkey_spec == NULL) {
if (dkv->key.id ==
CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID) {
if (last_extkey_spec == NULL)
last_extkey_spec = dkv;
} else if (dkv->value.immediate != last_extkey_spec->value.immediate) {
else if (dkv->value.immediate !=
last_extkey_spec->value.immediate)
last_extkey_spec = dkv;
} else {
else
continue;
}
/* Special Case: Extended Key */
} else if (dkv->key.id == CSR1212_KV_ID_EXTENDED_KEY) {
if (last_extkey == NULL) {
if (last_extkey == NULL)
last_extkey = dkv;
} else if (dkv->value.immediate != last_extkey->value.immediate) {
else if (dkv->value.immediate !=
last_extkey->value.immediate)
last_extkey = dkv;
} else {
else
continue;
}
}
num_entries += 1;
switch(dkv->key.type) {
switch (dkv->key.type) {
default:
case CSR1212_KV_TYPE_IMMEDIATE:
case CSR1212_KV_TYPE_CSR_OFFSET:
@ -724,8 +734,9 @@ static int csr1212_generate_layout_subdir(struct csr1212_keyval *dir,
/* Special case: Extended ROM leafs */
if (dkv->key.id == CSR1212_KV_ID_EXTENDED_ROM) {
dkv->value.leaf.len = -1;
/* Don't add Extended ROM leafs in the layout list,
* they are handled differently. */
/* Don't add Extended ROM leafs in the
* layout list, they are handled
* differently. */
break;
}
@ -746,15 +757,16 @@ static size_t csr1212_generate_layout_order(struct csr1212_keyval *kv)
struct csr1212_keyval *ltail = kv;
size_t agg_size = 0;
while(kv) {
switch(kv->key.type) {
while (kv) {
switch (kv->key.type) {
case CSR1212_KV_TYPE_LEAF:
/* Add 1 quadlet for crc/len field */
agg_size += kv->value.leaf.len + 1;
break;
case CSR1212_KV_TYPE_DIRECTORY:
kv->value.directory.len = csr1212_generate_layout_subdir(kv, &ltail);
kv->value.directory.len =
csr1212_generate_layout_subdir(kv, &ltail);
/* Add 1 quadlet for crc/len field */
agg_size += kv->value.directory.len + 1;
break;
@ -775,13 +787,12 @@ csr1212_generate_positions(struct csr1212_csr_rom_cache *cache,
cache->layout_head = kv;
while(kv && pos < cache->size) {
while (kv && pos < cache->size) {
/* Special case: Extended ROM leafs */
if (kv->key.id != CSR1212_KV_ID_EXTENDED_ROM) {
if (kv->key.id != CSR1212_KV_ID_EXTENDED_ROM)
kv->offset = cache->offset + pos;
}
switch(kv->key.type) {
switch (kv->key.type) {
case CSR1212_KV_TYPE_LEAF:
kv_len = kv->value.leaf.len;
break;
@ -805,7 +816,7 @@ csr1212_generate_positions(struct csr1212_csr_rom_cache *cache,
}
cache->layout_tail = okv;
cache->len = (okv->offset - cache->offset) + quads_to_bytes(okv_len + 1);
cache->len = okv->offset - cache->offset + quads_to_bytes(okv_len + 1);
return kv;
}
@ -823,33 +834,37 @@ csr1212_generate_tree_subdir(struct csr1212_keyval *dir, u32 *data_buffer)
struct csr1212_keyval *last_extkey = NULL;
int index = 0;
for (dentry = dir->value.directory.dentries_head; dentry; dentry = dentry->next) {
for (dentry = dir->value.directory.dentries_head;
dentry;
dentry = dentry->next) {
struct csr1212_keyval *a;
for (a = dentry->kv; a; a = a->associate) {
u32 value = 0;
/* Special Case: Extended Key Specifier_ID */
if (a->key.id == CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID) {
if (last_extkey_spec == NULL) {
if (a->key.id ==
CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID) {
if (last_extkey_spec == NULL)
last_extkey_spec = a;
} else if (a->value.immediate != last_extkey_spec->value.immediate) {
else if (a->value.immediate !=
last_extkey_spec->value.immediate)
last_extkey_spec = a;
} else {
else
continue;
}
/* Special Case: Extended Key */
} else if (a->key.id == CSR1212_KV_ID_EXTENDED_KEY) {
if (last_extkey == NULL) {
if (last_extkey == NULL)
last_extkey = a;
} else if (a->value.immediate != last_extkey->value.immediate) {
else if (a->value.immediate !=
last_extkey->value.immediate)
last_extkey = a;
} else {
else
continue;
}
}
switch(a->key.type) {
switch (a->key.type) {
case CSR1212_KV_TYPE_IMMEDIATE:
value = a->value.immediate;
break;
@ -871,9 +886,11 @@ csr1212_generate_tree_subdir(struct csr1212_keyval *dir, u32 *data_buffer)
break; /* GDB breakpoint */
}
value |= (a->key.id & CSR1212_KV_KEY_ID_MASK) << CSR1212_KV_KEY_SHIFT;
value |= (a->key.id & CSR1212_KV_KEY_ID_MASK) <<
CSR1212_KV_KEY_SHIFT;
value |= (a->key.type & CSR1212_KV_KEY_TYPE_MASK) <<
(CSR1212_KV_KEY_SHIFT + CSR1212_KV_KEY_TYPE_SHIFT);
(CSR1212_KV_KEY_SHIFT +
CSR1212_KV_KEY_TYPE_SHIFT);
data_buffer[index] = cpu_to_be32(value);
index++;
}
@ -893,10 +910,12 @@ static void csr1212_fill_cache(struct csr1212_csr_rom_cache *cache)
struct csr1212_keyval *kv, *nkv;
struct csr1212_keyval_img *kvi;
for (kv = cache->layout_head; kv != cache->layout_tail->next; kv = nkv) {
kvi = (struct csr1212_keyval_img *)
(cache->data + bytes_to_quads(kv->offset - cache->offset));
switch(kv->key.type) {
for (kv = cache->layout_head;
kv != cache->layout_tail->next;
kv = nkv) {
kvi = (struct csr1212_keyval_img *)(cache->data +
bytes_to_quads(kv->offset - cache->offset));
switch (kv->key.type) {
default:
case CSR1212_KV_TYPE_IMMEDIATE:
case CSR1212_KV_TYPE_CSR_OFFSET:
@ -918,7 +937,8 @@ static void csr1212_fill_cache(struct csr1212_csr_rom_cache *cache)
csr1212_generate_tree_subdir(kv, kvi->data);
kvi->length = cpu_to_be16(kv->value.directory.len);
kvi->crc = csr1212_crc16(kvi->data, kv->value.directory.len);
kvi->crc = csr1212_crc16(kvi->data,
kv->value.directory.len);
break;
}
@ -962,7 +982,9 @@ int csr1212_generate_csr_image(struct csr1212_csr *csr)
init_offset = csr->bus_info_len;
for (kv = csr->root_kv, cache = csr->cache_head; kv; cache = cache->next) {
for (kv = csr->root_kv, cache = csr->cache_head;
kv;
cache = cache->next) {
if (!cache) {
/* Estimate approximate number of additional cache
* regions needed (it assumes that the cache holding
@ -973,7 +995,8 @@ int csr1212_generate_csr_image(struct csr1212_csr *csr)
/* Add additional cache regions, extras will be
* removed later */
for (; est_c; est_c--) {
ret = csr1212_append_new_cache(csr, CSR1212_EXTENDED_ROM_SIZE);
ret = csr1212_append_new_cache(csr,
CSR1212_EXTENDED_ROM_SIZE);
if (ret != CSR1212_SUCCESS)
return ret;
}
@ -998,7 +1021,7 @@ int csr1212_generate_csr_image(struct csr1212_csr *csr)
/* Go through the list backward so that when done, the correct CRC
* will be calculated for the Extended ROM areas. */
for(cache = csr->cache_tail; cache; cache = cache->prev) {
for (cache = csr->cache_tail; cache; cache = cache->prev) {
/* Only Extended ROM caches should have this set. */
if (cache->ext_rom) {
int leaf_size;
@ -1046,15 +1069,15 @@ int csr1212_read(struct csr1212_csr *csr, u32 offset, void *buffer, u32 len)
{
struct csr1212_csr_rom_cache *cache;
for (cache = csr->cache_head; cache; cache = cache->next) {
for (cache = csr->cache_head; cache; cache = cache->next)
if (offset >= cache->offset &&
(offset + len) <= (cache->offset + cache->size)) {
memcpy(buffer,
&cache->data[bytes_to_quads(offset - cache->offset)],
memcpy(buffer, &cache->data[
bytes_to_quads(offset - cache->offset)],
len);
return CSR1212_SUCCESS;
}
}
return -ENOENT;
}
@ -1075,9 +1098,8 @@ static int csr1212_parse_bus_info_block(struct csr1212_csr *csr)
* ConfigROM will be read according to the max_rom field. */
for (i = 0; i < csr->bus_info_len; i += sizeof(u32)) {
ret = csr->ops->bus_read(csr, CSR1212_CONFIG_ROM_SPACE_BASE + i,
sizeof(u32),
&csr->cache_head->data[bytes_to_quads(i)],
csr->private);
sizeof(u32), &csr->cache_head->data[bytes_to_quads(i)],
csr->private);
if (ret != CSR1212_SUCCESS)
return ret;
@ -1091,13 +1113,13 @@ static int csr1212_parse_bus_info_block(struct csr1212_csr *csr)
bi = (struct csr1212_bus_info_block_img*)csr->cache_head->data;
csr->crc_len = quads_to_bytes(bi->crc_length);
/* IEEE 1212 recommends that crc_len be equal to bus_info_len, but that is not
* always the case, so read the rest of the crc area 1 quadlet at a time. */
/* IEEE 1212 recommends that crc_len be equal to bus_info_len, but that
* is not always the case, so read the rest of the crc area 1 quadlet at
* a time. */
for (i = csr->bus_info_len; i <= csr->crc_len; i += sizeof(u32)) {
ret = csr->ops->bus_read(csr, CSR1212_CONFIG_ROM_SPACE_BASE + i,
sizeof(u32),
&csr->cache_head->data[bytes_to_quads(i)],
csr->private);
sizeof(u32), &csr->cache_head->data[bytes_to_quads(i)],
csr->private);
if (ret != CSR1212_SUCCESS)
return ret;
}
@ -1131,14 +1153,14 @@ static int csr1212_parse_bus_info_block(struct csr1212_csr *csr)
#define CSR1212_KV_VAL_MASK 0xffffff
#define CSR1212_KV_VAL(q) (be32_to_cpu(q) & CSR1212_KV_VAL_MASK)
static int csr1212_parse_dir_entry(struct csr1212_keyval *dir,
u32 ki, u32 kv_pos)
static int
csr1212_parse_dir_entry(struct csr1212_keyval *dir, u32 ki, u32 kv_pos)
{
int ret = CSR1212_SUCCESS;
struct csr1212_keyval *k = NULL;
u32 offset;
switch(CSR1212_KV_KEY_TYPE(ki)) {
switch (CSR1212_KV_KEY_TYPE(ki)) {
case CSR1212_KV_TYPE_IMMEDIATE:
k = csr1212_new_immediate(CSR1212_KV_KEY_ID(ki),
CSR1212_KV_VAL(ki));
@ -1176,11 +1198,11 @@ static int csr1212_parse_dir_entry(struct csr1212_keyval *dir,
if (k)
break; /* Found it. */
if (CSR1212_KV_KEY_TYPE(ki) == CSR1212_KV_TYPE_DIRECTORY) {
if (CSR1212_KV_KEY_TYPE(ki) == CSR1212_KV_TYPE_DIRECTORY)
k = csr1212_new_directory(CSR1212_KV_KEY_ID(ki));
} else {
else
k = csr1212_new_leaf(CSR1212_KV_KEY_ID(ki), NULL, 0);
}
if (!k) {
ret = -ENOMEM;
goto fail;
@ -1210,8 +1232,8 @@ int csr1212_parse_keyval(struct csr1212_keyval *kv,
int ret = CSR1212_SUCCESS;
int kvi_len;
kvi = (struct csr1212_keyval_img*)&cache->data[bytes_to_quads(kv->offset -
cache->offset)];
kvi = (struct csr1212_keyval_img*)
&cache->data[bytes_to_quads(kv->offset - cache->offset)];
kvi_len = be16_to_cpu(kvi->length);
#if 0
@ -1224,7 +1246,7 @@ int csr1212_parse_keyval(struct csr1212_keyval *kv,
}
#endif
switch(kv->key.type) {
switch (kv->key.type) {
case CSR1212_KV_TYPE_DIRECTORY:
for (i = 0; i < kvi_len; i++) {
u32 ki = kvi->data[i];
@ -1235,22 +1257,23 @@ int csr1212_parse_keyval(struct csr1212_keyval *kv,
if (ki == 0x0)
continue;
ret = csr1212_parse_dir_entry(kv, ki,
(kv->offset +
quads_to_bytes(i + 1)));
kv->offset + quads_to_bytes(i + 1));
}
kv->value.directory.len = kvi_len;
break;
case CSR1212_KV_TYPE_LEAF:
if (kv->key.id != CSR1212_KV_ID_EXTENDED_ROM) {
kv->value.leaf.data = CSR1212_MALLOC(quads_to_bytes(kvi_len));
size_t size = quads_to_bytes(kvi_len);
kv->value.leaf.data = CSR1212_MALLOC(size);
if (!kv->value.leaf.data) {
ret = -ENOMEM;
goto fail;
}
kv->value.leaf.len = kvi_len;
memcpy(kv->value.leaf.data, kvi->data, quads_to_bytes(kvi_len));
memcpy(kv->value.leaf.data, kvi->data, size);
}
break;
}
@ -1276,11 +1299,10 @@ csr1212_read_keyval(struct csr1212_csr *csr, struct csr1212_keyval *kv)
/* First find which cache the data should be in (or go in if not read
* yet). */
for (cache = csr->cache_head; cache; cache = cache->next) {
for (cache = csr->cache_head; cache; cache = cache->next)
if (kv->offset >= cache->offset &&
kv->offset < (cache->offset + cache->size))
break;
}
if (!cache) {
u32 q, cache_size;
@ -1291,9 +1313,8 @@ csr1212_read_keyval(struct csr1212_csr *csr, struct csr1212_keyval *kv)
if (csr->ops->bus_read(csr,
CSR1212_REGISTER_SPACE_BASE + kv->offset,
sizeof(u32), &q, csr->private)) {
sizeof(u32), &q, csr->private))
return -EIO;
}
kv->value.leaf.len = be32_to_cpu(q) >> 16;
@ -1311,9 +1332,8 @@ csr1212_read_keyval(struct csr1212_csr *csr, struct csr1212_keyval *kv)
csr->cache_tail = cache;
cache->filled_head =
CSR1212_MALLOC(sizeof(*cache->filled_head));
if (!cache->filled_head) {
if (!cache->filled_head)
return -ENOMEM;
}
cache->filled_head->offset_start = 0;
cache->filled_head->offset_end = sizeof(u32);
@ -1349,8 +1369,9 @@ csr1212_read_keyval(struct csr1212_csr *csr, struct csr1212_keyval *kv)
(&cache->data[bytes_to_quads(cache_index)]);
kv_len = quads_to_bytes(be16_to_cpu(kvi->length) + 1);
break;
} else if (cache_index == cr->offset_end)
} else if (cache_index == cr->offset_end) {
break;
}
}
if (!cr) {
@ -1446,9 +1467,9 @@ int csr1212_parse_csr(struct csr1212_csr *csr)
if (ret != CSR1212_SUCCESS)
return ret;
if (!csr->ops->get_max_rom)
if (!csr->ops->get_max_rom) {
csr->max_rom = mr_map[0]; /* default value */
else {
} else {
int i = csr->ops->get_max_rom(csr->bus_info_data,
csr->private);
if (i & ~0x3)

31
drivers/ieee1394/csr1212.h
View File

@ -224,7 +224,8 @@ struct csr1212_bus_ops {
#define CSR1212_DESCRIPTOR_LEAF_OVERHEAD (1 * sizeof(u32))
#define CSR1212_DESCRIPTOR_LEAF_TYPE(kv) \
(be32_to_cpu((kv)->value.leaf.data[0]) >> CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT)
(be32_to_cpu((kv)->value.leaf.data[0]) >> \
CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT)
#define CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID(kv) \
(be32_to_cpu((kv)->value.leaf.data[0]) & \
CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID_MASK)
@ -364,24 +365,22 @@ extern void csr1212_release_keyval(struct csr1212_keyval *kv);
* This macro allows for looping over the keyval entries in a directory and it
* ensures that keyvals from remote ConfigROMs are parsed properly.
*
* _csr is a struct csr1212_csr * that points to CSR associated with dir.
* _kv is a struct csr1212_keyval * that'll point to the current keyval (loop index).
* _dir is a struct csr1212_keyval * that points to the directory to be looped.
* _pos is a struct csr1212_dentry * that is used internally for indexing.
* struct csr1212_csr *_csr points to the CSR associated with dir.
* struct csr1212_keyval *_kv points to the current keyval (loop index).
* struct csr1212_keyval *_dir points to the directory to be looped.
* struct csr1212_dentry *_pos is used internally for indexing.
*
* kv will be NULL upon exit of the loop.
*/
#define csr1212_for_each_dir_entry(_csr, _kv, _dir, _pos) \
for (csr1212_get_keyval((_csr), (_dir)), \
_pos = (_dir)->value.directory.dentries_head, \
_kv = (_pos) ? csr1212_get_keyval((_csr), _pos->kv) : NULL; \
(_kv) && (_pos); \
(_kv->associate == NULL) ? \
((_pos = _pos->next), \
(_kv = (_pos) ? csr1212_get_keyval((_csr), _pos->kv) : \
NULL)) : \
#define csr1212_for_each_dir_entry(_csr, _kv, _dir, _pos) \
for (csr1212_get_keyval((_csr), (_dir)), \
_pos = (_dir)->value.directory.dentries_head, \
_kv = (_pos) ? csr1212_get_keyval((_csr), _pos->kv) : NULL;\
(_kv) && (_pos); \
(_kv->associate == NULL) ? \
((_pos = _pos->next), (_kv = (_pos) ? \
csr1212_get_keyval((_csr), _pos->kv) : \
NULL)) : \
(_kv = csr1212_get_keyval((_csr), _kv->associate)))
#endif /* __CSR1212_H__ */