#include "core.h"
-static int __compute_block_crc(__be32 *block)
+int fw_compute_block_crc(__be32 *block)
{
int length;
u16 crc;
return length;
}
-int fw_compute_block_crc(u32 *block)
-{
- __be32 be32_block[256];
- int i, length;
-
- length = (*block >> 16) & 0xff;
- for (i = 0; i < length; i++)
- be32_block[i] = cpu_to_be32(block[i + 1]);
- *block |= crc_itu_t(0, (u8 *) be32_block, length * 4);
-
- return length;
-}
-
static DEFINE_MUTEX(card_mutex);
static LIST_HEAD(card_list);
static LIST_HEAD(descriptor_list);
static int descriptor_count;
+static __be32 tmp_config_rom[256];
+
#define BIB_CRC(v) ((v) << 0)
#define BIB_CRC_LENGTH(v) ((v) << 16)
#define BIB_INFO_LENGTH(v) ((v) << 24)
#define BIB_CMC ((1) << 30)
#define BIB_IMC ((1) << 31)
-static __be32 *generate_config_rom(struct fw_card *card, size_t *rom_length)
+static size_t generate_config_rom(struct fw_card *card, __be32 *config_rom)
{
struct fw_descriptor *desc;
- static __be32 config_rom[256];
int i, j, k, length;
/*
* the bus info block, which is always the case for this
* implementation. */
for (i = 0; i < j; i += length + 1)
- length = __compute_block_crc(config_rom + i);
-
- *rom_length = j;
+ length = fw_compute_block_crc(config_rom + i);
- return config_rom;
+ return j;
}
static void update_config_roms(void)
{
struct fw_card *card;
- __be32 *config_rom;
size_t length;
list_for_each_entry (card, &card_list, link) {
- config_rom = generate_config_rom(card, &length);
- card->driver->set_config_rom(card, config_rom, length);
+ length = generate_config_rom(card, tmp_config_rom);
+ card->driver->set_config_rom(card, tmp_config_rom, length);
}
}
int fw_card_add(struct fw_card *card,
u32 max_receive, u32 link_speed, u64 guid)
{
- __be32 *config_rom;
size_t length;
int ret;
mutex_lock(&card_mutex);
- config_rom = generate_config_rom(card, &length);
- ret = card->driver->enable(card, config_rom, length);
+ length = generate_config_rom(card, tmp_config_rom);
+ ret = card->driver->enable(card, tmp_config_rom, length);
if (ret == 0)
list_add_tail(&card->link, &card_list);