/* TODO List:
* - Verify interface consistency: i.e., public functions that take a size
* parameter expect size to be in bytes.
- * - Convenience functions for reading a block of data from a given offset.
*/
-#ifndef __KERNEL__
-#include <string.h>
-#endif
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <asm/bug.h>
+#include <asm/byteorder.h>
#include "csr1212.h"
#define __C (1 << CSR1212_KV_TYPE_CSR_OFFSET)
#define __D (1 << CSR1212_KV_TYPE_DIRECTORY)
#define __L (1 << CSR1212_KV_TYPE_LEAF)
-static const u_int8_t csr1212_key_id_type_map[0x30] = {
- 0, /* Reserved */
+static const u8 csr1212_key_id_type_map[0x30] = {
+ __C, /* used by Apple iSight */
__D | __L, /* Descriptor */
__I | __D | __L, /* Bus_Dependent_Info */
__I | __D | __L, /* Vendor */
__I, /* Hardware_Version */
0, 0, /* Reserved */
- __D | __L, /* Module */
- 0, 0, 0, 0, /* Reserved */
+ __D | __L | __I, /* Module */
+ __I, 0, 0, 0, /* used by Apple iSight, Reserved */
__I, /* Node_Capabilities */
__L, /* EUI_64 */
0, 0, 0, /* Reserved */
#undef __L
-#define quads_to_bytes(_q) ((_q) * sizeof(u_int32_t))
-#define bytes_to_quads(_b) (((_b) + sizeof(u_int32_t) - 1) / sizeof(u_int32_t))
+#define quads_to_bytes(_q) ((_q) * sizeof(u32))
+#define bytes_to_quads(_b) (((_b) + sizeof(u32) - 1) / sizeof(u32))
-static inline void free_keyval(struct csr1212_keyval *kv)
+static void free_keyval(struct csr1212_keyval *kv)
{
if ((kv->key.type == CSR1212_KV_TYPE_LEAF) &&
(kv->key.id != CSR1212_KV_ID_EXTENDED_ROM))
CSR1212_FREE(kv);
}
-static u_int16_t csr1212_crc16(const u_int32_t *buffer, size_t length)
+static u16 csr1212_crc16(const u32 *buffer, size_t length)
{
int shift;
- u_int32_t data;
- u_int16_t sum, crc = 0;
+ u32 data;
+ u16 sum, crc = 0;
for (; length; length--) {
- data = CSR1212_BE32_TO_CPU(*buffer);
+ data = be32_to_cpu(*buffer);
buffer++;
for (shift = 28; shift >= 0; shift -= 4 ) {
sum = ((crc >> 12) ^ (data >> shift)) & 0xf;
crc &= 0xffff;
}
- return CSR1212_CPU_TO_BE16(crc);
+ return cpu_to_be16(crc);
}
#if 0
/* Microsoft computes the CRC with the bytes in reverse order. Therefore we
* have a special version of the CRC algorithm to account for their buggy
* software. */
-static u_int16_t csr1212_msft_crc16(const u_int32_t *buffer, size_t length)
+static u16 csr1212_msft_crc16(const u32 *buffer, size_t length)
{
int shift;
- u_int32_t data;
- u_int16_t sum, crc = 0;
+ u32 data;
+ u16 sum, crc = 0;
for (; length; length--) {
- data = CSR1212_LE32_TO_CPU(*buffer);
+ data = le32_to_cpu(*buffer);
buffer++;
for (shift = 28; shift >= 0; shift -= 4 ) {
sum = ((crc >> 12) ^ (data >> shift)) & 0xf;
crc &= 0xffff;
}
- return CSR1212_CPU_TO_BE16(crc);
+ return cpu_to_be16(crc);
}
#endif
-static inline struct csr1212_dentry *csr1212_find_keyval(struct csr1212_keyval *dir,
- struct csr1212_keyval *kv)
+static struct csr1212_dentry *
+csr1212_find_keyval(struct csr1212_keyval *dir, struct csr1212_keyval *kv)
{
struct csr1212_dentry *pos;
return NULL;
}
-
-static inline struct csr1212_keyval *csr1212_find_keyval_offset(struct csr1212_keyval *kv_list,
- u_int32_t offset)
+static struct csr1212_keyval *
+csr1212_find_keyval_offset(struct csr1212_keyval *kv_list, u32 offset)
{
struct csr1212_keyval *kv;
/* Creation Routines */
+
struct csr1212_csr *csr1212_create_csr(struct csr1212_bus_ops *ops,
size_t bus_info_size, void *private)
{
return csr;
}
-
-
void csr1212_init_local_csr(struct csr1212_csr *csr,
- const u_int32_t *bus_info_data, int max_rom)
+ const u32 *bus_info_data, int max_rom)
{
static const int mr_map[] = { 4, 64, 1024, 0 };
-#ifdef __KERNEL__
BUG_ON(max_rom & ~0x3);
csr->max_rom = mr_map[max_rom];
-#else
- if (max_rom & ~0x3) /* caller supplied invalid argument */
- csr->max_rom = 0;
- else
- csr->max_rom = mr_map[max_rom];
-#endif
memcpy(csr->bus_info_data, bus_info_data, csr->bus_info_len);
}
-
-static struct csr1212_keyval *csr1212_new_keyval(u_int8_t type, u_int8_t key)
+static struct csr1212_keyval *csr1212_new_keyval(u8 type, u8 key)
{
struct csr1212_keyval *kv;
return kv;
}
-struct csr1212_keyval *csr1212_new_immediate(u_int8_t key, u_int32_t value)
+struct csr1212_keyval *csr1212_new_immediate(u8 key, u32 value)
{
struct csr1212_keyval *kv = csr1212_new_keyval(CSR1212_KV_TYPE_IMMEDIATE, key);
return kv;
}
-struct csr1212_keyval *csr1212_new_leaf(u_int8_t key, const void *data, size_t data_len)
+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);
return kv;
}
-struct csr1212_keyval *csr1212_new_csr_offset(u_int8_t key, u_int32_t csr_offset)
+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);
return kv;
}
-struct csr1212_keyval *csr1212_new_directory(u_int8_t key)
+struct csr1212_keyval *csr1212_new_directory(u8 key)
{
struct csr1212_keyval *kv = csr1212_new_keyval(CSR1212_KV_TYPE_DIRECTORY, key);
return kv;
}
-int csr1212_associate_keyval(struct csr1212_keyval *kv,
- struct csr1212_keyval *associate)
+void csr1212_associate_keyval(struct csr1212_keyval *kv,
+ struct csr1212_keyval *associate)
{
- if (!kv || !associate)
- return CSR1212_EINVAL;
-
- if (kv->key.id == CSR1212_KV_ID_DESCRIPTOR ||
- (associate->key.id != CSR1212_KV_ID_DESCRIPTOR &&
- associate->key.id != CSR1212_KV_ID_DEPENDENT_INFO &&
- associate->key.id != CSR1212_KV_ID_EXTENDED_KEY &&
- associate->key.id != CSR1212_KV_ID_EXTENDED_DATA &&
- associate->key.id < 0x30))
- return CSR1212_EINVAL;
-
- if (kv->key.id == CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID &&
- associate->key.id != CSR1212_KV_ID_EXTENDED_KEY)
- return CSR1212_EINVAL;
-
- if (kv->key.id == CSR1212_KV_ID_EXTENDED_KEY &&
- associate->key.id != CSR1212_KV_ID_EXTENDED_DATA)
- return CSR1212_EINVAL;
-
- if (associate->key.id == CSR1212_KV_ID_EXTENDED_KEY &&
- kv->key.id != CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID)
- return CSR1212_EINVAL;
-
- if (associate->key.id == CSR1212_KV_ID_EXTENDED_DATA &&
- kv->key.id != CSR1212_KV_ID_EXTENDED_KEY)
- return CSR1212_EINVAL;
+ BUG_ON(!kv || !associate || kv->key.id == CSR1212_KV_ID_DESCRIPTOR ||
+ (associate->key.id != CSR1212_KV_ID_DESCRIPTOR &&
+ associate->key.id != CSR1212_KV_ID_DEPENDENT_INFO &&
+ associate->key.id != CSR1212_KV_ID_EXTENDED_KEY &&
+ 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) ||
+ (kv->key.id == CSR1212_KV_ID_EXTENDED_KEY &&
+ associate->key.id != CSR1212_KV_ID_EXTENDED_DATA) ||
+ (associate->key.id == CSR1212_KV_ID_EXTENDED_KEY &&
+ kv->key.id != CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID) ||
+ (associate->key.id == CSR1212_KV_ID_EXTENDED_DATA &&
+ kv->key.id != CSR1212_KV_ID_EXTENDED_KEY));
if (kv->associate)
csr1212_release_keyval(kv->associate);
associate->refcnt++;
kv->associate = associate;
-
- return CSR1212_SUCCESS;
}
int csr1212_attach_keyval_to_directory(struct csr1212_keyval *dir,
{
struct csr1212_dentry *dentry;
- if (!kv || !dir || dir->key.type != CSR1212_KV_TYPE_DIRECTORY)
- return CSR1212_EINVAL;
+ BUG_ON(!kv || !dir || dir->key.type != CSR1212_KV_TYPE_DIRECTORY);
dentry = CSR1212_MALLOC(sizeof(*dentry));
if (!dentry)
- return CSR1212_ENOMEM;
+ return -ENOMEM;
dentry->kv = kv;
return CSR1212_SUCCESS;
}
-struct csr1212_keyval *csr1212_new_extended_immediate(u_int32_t spec, u_int32_t key,
- u_int32_t value)
-{
- struct csr1212_keyval *kvs, *kvk, *kvv;
-
- kvs = csr1212_new_immediate(CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID, spec);
- kvk = csr1212_new_immediate(CSR1212_KV_ID_EXTENDED_KEY, key);
- kvv = csr1212_new_immediate(CSR1212_KV_ID_EXTENDED_DATA, value);
-
- if (!kvs || !kvk || !kvv) {
- if (kvs)
- free_keyval(kvs);
- if (kvk)
- free_keyval(kvk);
- if (kvv)
- free_keyval(kvv);
- return NULL;
- }
-
- /* Don't keep a local reference to the extended key or value. */
- kvk->refcnt = 0;
- kvv->refcnt = 0;
-
- csr1212_associate_keyval(kvk, kvv);
- csr1212_associate_keyval(kvs, kvk);
-
- return kvs;
-}
-
-struct csr1212_keyval *csr1212_new_extended_leaf(u_int32_t spec, u_int32_t key,
- const void *data, size_t data_len)
-{
- struct csr1212_keyval *kvs, *kvk, *kvv;
-
- kvs = csr1212_new_immediate(CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID, spec);
- kvk = csr1212_new_immediate(CSR1212_KV_ID_EXTENDED_KEY, key);
- kvv = csr1212_new_leaf(CSR1212_KV_ID_EXTENDED_DATA, data, data_len);
-
- if (!kvs || !kvk || !kvv) {
- if (kvs)
- free_keyval(kvs);
- if (kvk)
- free_keyval(kvk);
- if (kvv)
- free_keyval(kvv);
- return NULL;
- }
-
- /* Don't keep a local reference to the extended key or value. */
- kvk->refcnt = 0;
- kvv->refcnt = 0;
-
- csr1212_associate_keyval(kvk, kvv);
- csr1212_associate_keyval(kvs, kvk);
-
- return kvs;
-}
-
-struct csr1212_keyval *csr1212_new_descriptor_leaf(u_int8_t dtype, u_int32_t specifier_id,
- const void *data, size_t data_len)
+#define CSR1212_DESCRIPTOR_LEAF_DATA(kv) \
+ (&((kv)->value.leaf.data[1]))
+
+#define CSR1212_DESCRIPTOR_LEAF_SET_TYPE(kv, type) \
+ ((kv)->value.leaf.data[0] = \
+ cpu_to_be32(CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID(kv) | \
+ ((type) << CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT)))
+#define CSR1212_DESCRIPTOR_LEAF_SET_SPECIFIER_ID(kv, spec_id) \
+ ((kv)->value.leaf.data[0] = \
+ cpu_to_be32((CSR1212_DESCRIPTOR_LEAF_TYPE(kv) << \
+ CSR1212_DESCRIPTOR_LEAF_TYPE_SHIFT) | \
+ ((spec_id) & CSR1212_DESCRIPTOR_LEAF_SPECIFIER_ID_MASK)))
+
+static struct csr1212_keyval *
+csr1212_new_descriptor_leaf(u8 dtype, u32 specifier_id,
+ const void *data, size_t data_len)
{
struct csr1212_keyval *kv;
return kv;
}
-
-struct csr1212_keyval *csr1212_new_textual_descriptor_leaf(u_int8_t cwidth,
- u_int16_t cset,
- u_int16_t language,
- const void *data,
- size_t data_len)
+#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_SET_WIDTH(kv, width) \
+ ((kv)->value.leaf.data[1] = \
+ ((kv)->value.leaf.data[1] & \
+ cpu_to_be32(~(CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_MASK << \
+ CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_SHIFT))) | \
+ cpu_to_be32(((width) & CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_MASK) << \
+ CSR1212_TEXTUAL_DESCRIPTOR_LEAF_WIDTH_SHIFT))
+
+#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_SET_CHAR_SET(kv, char_set) \
+ ((kv)->value.leaf.data[1] = \
+ ((kv)->value.leaf.data[1] & \
+ cpu_to_be32(~(CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_MASK << \
+ CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_SHIFT))) | \
+ cpu_to_be32(((char_set) & \
+ CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_MASK) << \
+ CSR1212_TEXTUAL_DESCRIPTOR_LEAF_CHAR_SET_SHIFT))
+
+#define CSR1212_TEXTUAL_DESCRIPTOR_LEAF_SET_LANGUAGE(kv, language) \
+ ((kv)->value.leaf.data[1] = \
+ ((kv)->value.leaf.data[1] & \
+ cpu_to_be32(~(CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE_MASK))) | \
+ cpu_to_be32(((language) & \
+ CSR1212_TEXTUAL_DESCRIPTOR_LEAF_LANGUAGE_MASK)))
+
+static struct csr1212_keyval *
+csr1212_new_textual_descriptor_leaf(u8 cwidth, u16 cset, u16 language,
+ const void *data, size_t data_len)
{
struct csr1212_keyval *kv;
char *lstr;
lstr = (char*)CSR1212_TEXTUAL_DESCRIPTOR_LEAF_DATA(kv);
/* make sure last quadlet is zeroed out */
- *((u_int32_t*)&(lstr[(data_len - 1) & ~0x3])) = 0;
+ *((u32*)&(lstr[(data_len - 1) & ~0x3])) = 0;
/* don't copy the NUL terminator */
memcpy(lstr, data, data_len);
return csr1212_new_textual_descriptor_leaf(0, 0, 0, s, strlen(s));
}
-struct csr1212_keyval *csr1212_new_icon_descriptor_leaf(u_int32_t version,
- u_int8_t palette_depth,
- u_int8_t color_space,
- u_int16_t language,
- u_int16_t hscan,
- u_int16_t vscan,
- u_int32_t *palette,
- u_int32_t *pixels)
-{
- static const int pd[4] = { 0, 4, 16, 256 };
- static const int cs[16] = { 4, 2 };
- struct csr1212_keyval *kv;
- int palette_size;
- int pixel_size = (hscan * vscan + 3) & ~0x3;
-
- if (!pixels || (!palette && palette_depth) ||
- (palette_depth & ~0x3) || (color_space & ~0xf))
- return NULL;
-
- palette_size = pd[palette_depth] * cs[color_space];
-
- kv = csr1212_new_descriptor_leaf(1, 0, NULL,
- palette_size + pixel_size +
- CSR1212_ICON_DESCRIPTOR_LEAF_OVERHEAD);
- if (!kv)
- return NULL;
-
- CSR1212_ICON_DESCRIPTOR_LEAF_SET_VERSION(kv, version);
- CSR1212_ICON_DESCRIPTOR_LEAF_SET_PALETTE_DEPTH(kv, palette_depth);
- CSR1212_ICON_DESCRIPTOR_LEAF_SET_COLOR_SPACE(kv, color_space);
- CSR1212_ICON_DESCRIPTOR_LEAF_SET_LANGUAGE(kv, language);
- CSR1212_ICON_DESCRIPTOR_LEAF_SET_HSCAN(kv, hscan);
- CSR1212_ICON_DESCRIPTOR_LEAF_SET_VSCAN(kv, vscan);
-
- if (palette_size)
- memcpy(CSR1212_ICON_DESCRIPTOR_LEAF_PALETTE(kv), palette,
- palette_size);
-
- memcpy(CSR1212_ICON_DESCRIPTOR_LEAF_PIXELS(kv), pixels, pixel_size);
-
- return kv;
-}
-
-struct csr1212_keyval *csr1212_new_modifiable_descriptor_leaf(u_int16_t max_size,
- u_int64_t address)
-{
- struct csr1212_keyval *kv;
-
- /* IEEE 1212, par. 7.5.4.3 Modifiable descriptors */
- kv = csr1212_new_leaf(CSR1212_KV_ID_MODIFIABLE_DESCRIPTOR, NULL, sizeof(u_int64_t));
- if(!kv)
- return NULL;
-
- CSR1212_MODIFIABLE_DESCRIPTOR_SET_MAX_SIZE(kv, max_size);
- CSR1212_MODIFIABLE_DESCRIPTOR_SET_ADDRESS_HI(kv, address);
- CSR1212_MODIFIABLE_DESCRIPTOR_SET_ADDRESS_LO(kv, address);
-
- return kv;
-}
-
-static int csr1212_check_keyword(const char *s)
-{
- for (; *s; s++) {
-
- if (('A' <= *s) && (*s <= 'Z'))
- continue;
- if (('0' <= *s) && (*s <= '9'))
- continue;
- if (*s == '-')
- continue;
-
- return -1; /* failed */
- }
- /* String conforms to keyword, as specified by IEEE 1212,
- * par. 7.6.5 */
- return CSR1212_SUCCESS;
-}
-
-struct csr1212_keyval *csr1212_new_keyword_leaf(int strc, const char *strv[])
-{
- struct csr1212_keyval *kv;
- char *buffer;
- int i, data_len = 0;
-
- /* Check all keywords to see if they conform to restrictions:
- * Only the following characters is allowed ['A'..'Z','0'..'9','-']
- * Each word is zero-terminated.
- * Also calculate the total length of the keywords.
- */
- for (i = 0; i < strc; i++) {
- if (!strv[i] || csr1212_check_keyword(strv[i])) {
- return NULL;
- }
- data_len += strlen(strv[i]) + 1; /* Add zero-termination char. */
- }
-
- /* IEEE 1212, par. 7.6.5 Keyword leaves */
- kv = csr1212_new_leaf(CSR1212_KV_ID_KEYWORD, NULL, data_len);
- if (!kv)
- return NULL;
-
- buffer = (char *)kv->value.leaf.data;
-
- /* make sure last quadlet is zeroed out */
- *((u_int32_t*)&(buffer[(data_len - 1) & ~0x3])) = 0;
-
- /* Copy keyword(s) into leaf data buffer */
- for (i = 0; i < strc; i++) {
- int len = strlen(strv[i]) + 1;
- memcpy(buffer, strv[i], len);
- buffer += len;
- }
- return kv;
-}
-
/* Destruction Routines */
csr1212_release_keyval(kv);
}
-
-void csr1212_disassociate_keyval(struct csr1212_keyval *kv)
-{
- if (kv->associate) {
- csr1212_release_keyval(kv->associate);
- }
-
- kv->associate = NULL;
-}
-
-
/* This function is used to free the memory taken by a keyval. If the given
* keyval is a directory type, then any keyvals contained in that directory
* will be destroyed as well if their respective refcnts are 0. By means of
}
}
-
void csr1212_destroy_csr(struct csr1212_csr *csr)
{
struct csr1212_csr_rom_cache *c, *oc;
}
-
/* CSR Image Creation */
static int csr1212_append_new_cache(struct csr1212_csr *csr, size_t romsize)
{
struct csr1212_csr_rom_cache *cache;
- u_int64_t csr_addr;
+ u64 csr_addr;
- if (!csr || !csr->ops || !csr->ops->allocate_addr_range ||
- !csr->ops->release_addr || csr->max_rom < 1)
- return CSR1212_EINVAL;
+ BUG_ON(!csr || !csr->ops || !csr->ops->allocate_addr_range ||
+ !csr->ops->release_addr || csr->max_rom < 1);
/* 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 == ~0ULL) {
- return CSR1212_ENOMEM;
+ 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 CSR1212_ENOMEM;
+ return -ENOMEM;
}
cache = csr1212_rom_cache_malloc(csr_addr - CSR1212_REGISTER_SPACE_BASE, romsize);
if (!cache) {
csr->ops->release_addr(csr_addr, csr->private);
- return CSR1212_ENOMEM;
+ return -ENOMEM;
}
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 CSR1212_ENOMEM;
+ return -ENOMEM;
}
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);
- return CSR1212_ENOMEM;
+ return -ENOMEM;
}
cache->ext_rom->offset = csr_addr - CSR1212_REGISTER_SPACE_BASE;
cache->ext_rom->value.leaf.len = -1;
return CSR1212_SUCCESS;
}
-static inline void csr1212_remove_cache(struct csr1212_csr *csr,
- struct csr1212_csr_rom_cache *cache)
+static void csr1212_remove_cache(struct csr1212_csr *csr,
+ struct csr1212_csr_rom_cache *cache)
{
if (csr->cache_head == cache)
csr->cache_head = cache->next;
return num_entries;
}
-size_t csr1212_generate_layout_order(struct csr1212_keyval *kv)
+static size_t csr1212_generate_layout_order(struct csr1212_keyval *kv)
{
struct csr1212_keyval *ltail = kv;
size_t agg_size = 0;
return quads_to_bytes(agg_size);
}
-struct csr1212_keyval *csr1212_generate_positions(struct csr1212_csr_rom_cache *cache,
- struct csr1212_keyval *start_kv,
- int start_pos)
+static struct csr1212_keyval *
+csr1212_generate_positions(struct csr1212_csr_rom_cache *cache,
+ struct csr1212_keyval *start_kv, int start_pos)
{
struct csr1212_keyval *kv = start_kv;
struct csr1212_keyval *okv = start_kv;
return kv;
}
-static void csr1212_generate_tree_subdir(struct csr1212_keyval *dir,
- u_int32_t *data_buffer)
+#define CSR1212_KV_KEY_SHIFT 24
+#define CSR1212_KV_KEY_TYPE_SHIFT 6
+#define CSR1212_KV_KEY_ID_MASK 0x3f
+#define CSR1212_KV_KEY_TYPE_MASK 0x3 /* after shift */
+
+static void
+csr1212_generate_tree_subdir(struct csr1212_keyval *dir, u32 *data_buffer)
{
struct csr1212_dentry *dentry;
struct csr1212_keyval *last_extkey_spec = NULL;
struct csr1212_keyval *a;
for (a = dentry->kv; a; a = a->associate) {
- u_int32_t value = 0;
+ u32 value = 0;
/* Special Case: Extended Key Specifier_ID */
if (a->key.id == CSR1212_KV_ID_EXTENDED_KEY_SPECIFIER_ID) {
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);
- data_buffer[index] = CSR1212_CPU_TO_BE32(value);
+ data_buffer[index] = cpu_to_be32(value);
index++;
}
}
}
-void csr1212_fill_cache(struct csr1212_csr_rom_cache *cache)
+struct csr1212_keyval_img {
+ u16 length;
+ u16 crc;
+
+ /* Must be last */
+ u32 data[0]; /* older gcc can't handle [] which is standard */
+};
+
+static void csr1212_fill_cache(struct csr1212_csr_rom_cache *cache)
{
struct csr1212_keyval *kv, *nkv;
struct csr1212_keyval_img *kvi;
memcpy(kvi->data, kv->value.leaf.data,
quads_to_bytes(kv->value.leaf.len));
- kvi->length = CSR1212_CPU_TO_BE16(kv->value.leaf.len);
+ kvi->length = cpu_to_be16(kv->value.leaf.len);
kvi->crc = csr1212_crc16(kvi->data, kv->value.leaf.len);
break;
case CSR1212_KV_TYPE_DIRECTORY:
csr1212_generate_tree_subdir(kv, kvi->data);
- kvi->length = CSR1212_CPU_TO_BE16(kv->value.directory.len);
+ kvi->length = cpu_to_be16(kv->value.directory.len);
kvi->crc = csr1212_crc16(kvi->data, kv->value.directory.len);
break;
}
}
}
+#define CSR1212_EXTENDED_ROM_SIZE (0x10000 * sizeof(u32))
+
int csr1212_generate_csr_image(struct csr1212_csr *csr)
{
struct csr1212_bus_info_block_img *bi;
int ret;
int init_offset;
- if (!csr)
- return CSR1212_EINVAL;
+ BUG_ON(!csr);
cache = csr->cache_head;
* regions needed (it assumes that the cache holding
* the first 1K Config ROM space always exists). */
int est_c = agg_size / (CSR1212_EXTENDED_ROM_SIZE -
- (2 * sizeof(u_int32_t))) + 1;
+ (2 * sizeof(u32))) + 1;
/* Add additional cache regions, extras will be
* removed later */
}
kv = csr1212_generate_positions(cache, kv, init_offset);
agg_size -= cache->len;
- init_offset = sizeof(u_int32_t);
+ init_offset = sizeof(u32);
}
/* Remove unused, excess cache regions */
/* Make sure the Extended ROM leaf is a multiple of
* max_rom in size. */
- if (csr->max_rom < 1)
- return CSR1212_EINVAL;
+ BUG_ON(csr->max_rom < 1);
leaf_size = (cache->len + (csr->max_rom - 1)) &
~(csr->max_rom - 1);
leaf_size - cache->len);
/* Subtract leaf header */
- leaf_size -= sizeof(u_int32_t);
+ leaf_size -= sizeof(u32);
/* Update the Extended ROM leaf length */
cache->ext_rom->value.leaf.len =
/* Set the length and CRC of the extended ROM. */
struct csr1212_keyval_img *kvi =
(struct csr1212_keyval_img*)cache->data;
+ u16 len = bytes_to_quads(cache->len) - 1;
- kvi->length = CSR1212_CPU_TO_BE16(bytes_to_quads(cache->len) - 1);
- kvi->crc = csr1212_crc16(kvi->data,
- bytes_to_quads(cache->len) - 1);
-
+ kvi->length = cpu_to_be16(len);
+ kvi->crc = csr1212_crc16(kvi->data, len);
}
}
return CSR1212_SUCCESS;
}
-int csr1212_read(struct csr1212_csr *csr, u_int32_t offset, void *buffer, u_int32_t len)
+int csr1212_read(struct csr1212_csr *csr, u32 offset, void *buffer, u32 len)
{
struct csr1212_csr_rom_cache *cache;
return CSR1212_SUCCESS;
}
}
- return CSR1212_ENOENT;
+ return -ENOENT;
}
-
/* Parse a chunk of data as a Config ROM */
static int csr1212_parse_bus_info_block(struct csr1212_csr *csr)
* Unfortunately, many IEEE 1394 devices do not abide by that, so the
* bus info block will be read 1 quadlet at a time. The rest of the
* ConfigROM will be read according to the max_rom field. */
- for (i = 0; i < csr->bus_info_len; i += sizeof(csr1212_quad_t)) {
+ for (i = 0; i < csr->bus_info_len; i += sizeof(u32)) {
ret = csr->ops->bus_read(csr, CSR1212_CONFIG_ROM_SPACE_BASE + i,
- sizeof(csr1212_quad_t),
+ sizeof(u32),
&csr->cache_head->data[bytes_to_quads(i)],
csr->private);
if (ret != CSR1212_SUCCESS)
return ret;
+
+ /* check ROM header's info_length */
+ if (i == 0 &&
+ be32_to_cpu(csr->cache_head->data[0]) >> 24 !=
+ bytes_to_quads(csr->bus_info_len) - 1)
+ return -EINVAL;
}
bi = (struct csr1212_bus_info_block_img*)csr->cache_head->data;
/* 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(csr1212_quad_t)) {
+ 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(csr1212_quad_t),
+ sizeof(u32),
&csr->cache_head->data[bytes_to_quads(i)],
csr->private);
if (ret != CSR1212_SUCCESS)
return ret;
}
- if (bytes_to_quads(csr->bus_info_len - sizeof(csr1212_quad_t)) != bi->length)
- return CSR1212_EINVAL;
-
#if 0
/* Apparently there are too many differnt wrong implementations of the
* CRC algorithm that verifying them is moot. */
if ((csr1212_crc16(bi->data, bi->crc_length) != bi->crc) &&
(csr1212_msft_crc16(bi->data, bi->crc_length) != bi->crc))
- return CSR1212_EINVAL;
+ return -EINVAL;
#endif
- cr = CSR1212_MALLOC(sizeof(struct csr1212_cache_region));
+ cr = CSR1212_MALLOC(sizeof(*cr));
if (!cr)
- return CSR1212_ENOMEM;
+ return -ENOMEM;
cr->next = NULL;
cr->prev = NULL;
return CSR1212_SUCCESS;
}
+#define CSR1212_KV_KEY(q) (be32_to_cpu(q) >> CSR1212_KV_KEY_SHIFT)
+#define CSR1212_KV_KEY_TYPE(q) (CSR1212_KV_KEY(q) >> CSR1212_KV_KEY_TYPE_SHIFT)
+#define CSR1212_KV_KEY_ID(q) (CSR1212_KV_KEY(q) & CSR1212_KV_KEY_ID_MASK)
+#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,
- csr1212_quad_t ki,
- u_int32_t kv_pos)
+ u32 ki, u32 kv_pos)
{
int ret = CSR1212_SUCCESS;
struct csr1212_keyval *k = NULL;
- u_int32_t offset;
+ u32 offset;
switch(CSR1212_KV_KEY_TYPE(ki)) {
case CSR1212_KV_TYPE_IMMEDIATE:
k = csr1212_new_immediate(CSR1212_KV_KEY_ID(ki),
CSR1212_KV_VAL(ki));
if (!k) {
- ret = CSR1212_ENOMEM;
+ ret = -ENOMEM;
goto fail;
}
k = csr1212_new_csr_offset(CSR1212_KV_KEY_ID(ki),
CSR1212_KV_VAL(ki));
if (!k) {
- ret = CSR1212_ENOMEM;
+ ret = -ENOMEM;
goto fail;
}
k->refcnt = 0; /* Don't keep local reference when parsing. */
/* Uh-oh. Can't have a relative offset of 0 for Leaves
* or Directories. The Config ROM image is most likely
* messed up, so we'll just abort here. */
- ret = CSR1212_EIO;
+ ret = -EIO;
goto fail;
}
k = csr1212_new_leaf(CSR1212_KV_KEY_ID(ki), NULL, 0);
}
if (!k) {
- ret = CSR1212_ENOMEM;
+ ret = -ENOMEM;
goto fail;
}
k->refcnt = 0; /* Don't keep local reference when parsing. */
ret = csr1212_attach_keyval_to_directory(dir, k);
fail:
- if (ret != CSR1212_SUCCESS) {
- if (k)
- free_keyval(k);
- }
+ if (ret != CSR1212_SUCCESS && k != NULL)
+ free_keyval(k);
return ret;
}
-
int csr1212_parse_keyval(struct csr1212_keyval *kv,
struct csr1212_csr_rom_cache *cache)
{
kvi = (struct csr1212_keyval_img*)&cache->data[bytes_to_quads(kv->offset -
cache->offset)];
- kvi_len = CSR1212_BE16_TO_CPU(kvi->length);
+ kvi_len = be16_to_cpu(kvi->length);
#if 0
/* Apparently there are too many differnt wrong implementations of the
* CRC algorithm that verifying them is moot. */
if ((csr1212_crc16(kvi->data, kvi_len) != kvi->crc) &&
(csr1212_msft_crc16(kvi->data, kvi_len) != kvi->crc)) {
- ret = CSR1212_EINVAL;
+ ret = -EINVAL;
goto fail;
}
#endif
switch(kv->key.type) {
case CSR1212_KV_TYPE_DIRECTORY:
for (i = 0; i < kvi_len; i++) {
- csr1212_quad_t ki = kvi->data[i];
+ u32 ki = kvi->data[i];
/* Some devices put null entries in their unit
* directories. If we come across such an entry,
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));
- if (!kv->value.leaf.data)
- {
- ret = CSR1212_ENOMEM;
+ if (!kv->value.leaf.data) {
+ ret = -ENOMEM;
goto fail;
}
return ret;
}
-
int _csr1212_read_keyval(struct csr1212_csr *csr, struct csr1212_keyval *kv)
{
struct csr1212_cache_region *cr, *ncr, *newcr = NULL;
struct csr1212_keyval_img *kvi = NULL;
struct csr1212_csr_rom_cache *cache;
int cache_index;
- u_int64_t addr;
- u_int32_t *cache_ptr;
- u_int16_t kv_len = 0;
+ u64 addr;
+ u32 *cache_ptr;
+ u16 kv_len = 0;
- if (!csr || !kv || csr->max_rom < 1)
- return CSR1212_EINVAL;
+ BUG_ON(!csr || !kv || csr->max_rom < 1);
/* First find which cache the data should be in (or go in if not read
* yet). */
}
if (!cache) {
- csr1212_quad_t q;
- u_int32_t cache_size;
+ u32 q, cache_size;
/* Only create a new cache for Extended ROM leaves. */
if (kv->key.id != CSR1212_KV_ID_EXTENDED_ROM)
- return CSR1212_EINVAL;
+ return -EINVAL;
if (csr->ops->bus_read(csr,
CSR1212_REGISTER_SPACE_BASE + kv->offset,
- sizeof(csr1212_quad_t), &q, csr->private)) {
- return CSR1212_EIO;
+ sizeof(u32), &q, csr->private)) {
+ return -EIO;
}
- kv->value.leaf.len = CSR1212_BE32_TO_CPU(q) >> 16;
+ kv->value.leaf.len = be32_to_cpu(q) >> 16;
cache_size = (quads_to_bytes(kv->value.leaf.len + 1) +
(csr->max_rom - 1)) & ~(csr->max_rom - 1);
cache = csr1212_rom_cache_malloc(kv->offset, cache_size);
if (!cache)
- return CSR1212_ENOMEM;
+ return -ENOMEM;
kv->value.leaf.data = &cache->data[1];
csr->cache_tail->next = cache;
cache->next = NULL;
csr->cache_tail = cache;
cache->filled_head =
- CSR1212_MALLOC(sizeof(struct csr1212_cache_region));
+ CSR1212_MALLOC(sizeof(*cache->filled_head));
if (!cache->filled_head) {
- return CSR1212_ENOMEM;
+ return -ENOMEM;
}
cache->filled_head->offset_start = 0;
- cache->filled_head->offset_end = sizeof(csr1212_quad_t);
+ cache->filled_head->offset_end = sizeof(u32);
cache->filled_tail = cache->filled_head;
cache->filled_head->next = NULL;
cache->filled_head->prev = NULL;
/* Now seach read portions of the cache to see if it is there. */
for (cr = cache->filled_head; cr; cr = cr->next) {
if (cache_index < cr->offset_start) {
- newcr = CSR1212_MALLOC(sizeof(struct csr1212_cache_region));
+ newcr = CSR1212_MALLOC(sizeof(*newcr));
if (!newcr)
- return CSR1212_ENOMEM;
+ return -ENOMEM;
newcr->offset_start = cache_index & ~(csr->max_rom - 1);
newcr->offset_end = newcr->offset_start;
(cache_index < cr->offset_end)) {
kvi = (struct csr1212_keyval_img*)
(&cache->data[bytes_to_quads(cache_index)]);
- kv_len = quads_to_bytes(CSR1212_BE16_TO_CPU(kvi->length) +
- 1);
+ kv_len = quads_to_bytes(be16_to_cpu(kvi->length) + 1);
break;
} else if (cache_index == cr->offset_end)
break;
if (!cr) {
cr = cache->filled_tail;
- newcr = CSR1212_MALLOC(sizeof(struct csr1212_cache_region));
+ newcr = CSR1212_MALLOC(sizeof(*newcr));
if (!newcr)
- return CSR1212_ENOMEM;
+ return -ENOMEM;
newcr->offset_start = cache_index & ~(csr->max_rom - 1);
newcr->offset_end = newcr->offset_start;
csr->private)) {
if (csr->max_rom == 4)
/* We've got problems! */
- return CSR1212_EIO;
+ return -EIO;
/* Apperently the max_rom value was a lie, set it to
* do quadlet reads and try again. */
if (!kvi && (cr->offset_end > cache_index)) {
kvi = (struct csr1212_keyval_img*)
(&cache->data[bytes_to_quads(cache_index)]);
- kv_len = quads_to_bytes(CSR1212_BE16_TO_CPU(kvi->length) +
- 1);
+ kv_len = quads_to_bytes(be16_to_cpu(kvi->length) + 1);
}
if ((kv_len + (kv->offset - cache->offset)) > cache->size) {
* beyond the ConfigROM image region and thus beyond the
* end of our cache region. Therefore, we abort now
* rather than seg faulting later. */
- return CSR1212_EIO;
+ return -EIO;
}
ncr = cr->next;
return csr1212_parse_keyval(kv, cache);
}
-
-
int csr1212_parse_csr(struct csr1212_csr *csr)
{
static const int mr_map[] = { 4, 64, 1024, 0 };
struct csr1212_dentry *dentry;
int ret;
- if (!csr || !csr->ops || !csr->ops->bus_read)
- return CSR1212_EINVAL;
+ BUG_ON(!csr || !csr->ops || !csr->ops->bus_read);
ret = csr1212_parse_bus_info_block(csr);
if (ret != CSR1212_SUCCESS)
int i = csr->ops->get_max_rom(csr->bus_info_data,
csr->private);
if (i & ~0x3)
- return CSR1212_EINVAL;
+ return -EINVAL;
csr->max_rom = mr_map[i];
}
csr->root_kv->valid = 0;
csr->root_kv->next = csr->root_kv;
csr->root_kv->prev = csr->root_kv;
- csr1212_get_keyval(csr, csr->root_kv);
+ ret = _csr1212_read_keyval(csr, csr->root_kv);
+ if (ret != CSR1212_SUCCESS)
+ return ret;
/* Scan through the Root directory finding all extended ROM regions
* and make cache regions for them */
for (dentry = csr->root_kv->value.directory.dentries_head;
dentry; dentry = dentry->next) {
- if (dentry->kv->key.id == CSR1212_KV_ID_EXTENDED_ROM) {
- csr1212_get_keyval(csr, dentry->kv);
-
+ if (dentry->kv->key.id == CSR1212_KV_ID_EXTENDED_ROM &&
+ !dentry->kv->valid) {
+ ret = _csr1212_read_keyval(csr, dentry->kv);
if (ret != CSR1212_SUCCESS)
return ret;
}
projects / linux-2.6 / blobdiff