diff options
Diffstat (limited to 'drivers/firewire/core-card.c')
| -rw-r--r-- | drivers/firewire/core-card.c | 62 |
1 files changed, 37 insertions, 25 deletions
diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c index 33898b63cdf7..f73e3bdfc84c 100644 --- a/drivers/firewire/core-card.c +++ b/drivers/firewire/core-card.c @@ -38,6 +38,18 @@ #include "core.h" +static int __compute_block_crc(__be32 *block) +{ + int length; + u16 crc; + + length = (be32_to_cpu(block[0]) >> 16) & 0xff; + crc = crc_itu_t(0, (u8 *)&block[1], length * 4); + *block |= cpu_to_be32(crc); + + return length; +} + int fw_compute_block_crc(u32 *block) { __be32 be32_block[256]; @@ -72,11 +84,11 @@ static int descriptor_count; #define BIB_CMC ((1) << 30) #define BIB_IMC ((1) << 31) -static u32 *generate_config_rom(struct fw_card *card, size_t *config_rom_length) +static __be32 *generate_config_rom(struct fw_card *card, size_t *rom_length) { struct fw_descriptor *desc; - static u32 config_rom[256]; - int i, j, length; + static __be32 config_rom[256]; + int i, j, k, length; /* * Initialize contents of config rom buffer. On the OHCI @@ -87,40 +99,39 @@ static u32 *generate_config_rom(struct fw_card *card, size_t *config_rom_length) * the version stored in the OHCI registers. */ - memset(config_rom, 0, sizeof(config_rom)); - config_rom[0] = BIB_CRC_LENGTH(4) | BIB_INFO_LENGTH(4) | BIB_CRC(0); - config_rom[1] = 0x31333934; - - config_rom[2] = + config_rom[0] = cpu_to_be32( + BIB_CRC_LENGTH(4) | BIB_INFO_LENGTH(4) | BIB_CRC(0)); + config_rom[1] = cpu_to_be32(0x31333934); + config_rom[2] = cpu_to_be32( BIB_LINK_SPEED(card->link_speed) | BIB_GENERATION(card->config_rom_generation++ % 14 + 2) | BIB_MAX_ROM(2) | BIB_MAX_RECEIVE(card->max_receive) | - BIB_BMC | BIB_ISC | BIB_CMC | BIB_IMC; - config_rom[3] = card->guid >> 32; - config_rom[4] = card->guid; + BIB_BMC | BIB_ISC | BIB_CMC | BIB_IMC); + config_rom[3] = cpu_to_be32(card->guid >> 32); + config_rom[4] = cpu_to_be32(card->guid); /* Generate root directory. */ - i = 5; - config_rom[i++] = 0; - config_rom[i++] = 0x0c0083c0; /* node capabilities */ - j = i + descriptor_count; + config_rom[6] = cpu_to_be32(0x0c0083c0); /* node capabilities */ + i = 7; + j = 7 + descriptor_count; /* Generate root directory entries for descriptors. */ list_for_each_entry (desc, &descriptor_list, link) { if (desc->immediate > 0) - config_rom[i++] = desc->immediate; - config_rom[i] = desc->key | (j - i); + config_rom[i++] = cpu_to_be32(desc->immediate); + config_rom[i] = cpu_to_be32(desc->key | (j - i)); i++; j += desc->length; } /* Update root directory length. */ - config_rom[5] = (i - 5 - 1) << 16; + config_rom[5] = cpu_to_be32((i - 5 - 1) << 16); /* End of root directory, now copy in descriptors. */ list_for_each_entry (desc, &descriptor_list, link) { - memcpy(&config_rom[i], desc->data, desc->length * 4); + for (k = 0; k < desc->length; k++) + config_rom[i + k] = cpu_to_be32(desc->data[k]); i += desc->length; } @@ -129,9 +140,9 @@ static u32 *generate_config_rom(struct fw_card *card, size_t *config_rom_length) * the bus info block, which is always the case for this * implementation. */ for (i = 0; i < j; i += length + 1) - length = fw_compute_block_crc(config_rom + i); + length = __compute_block_crc(config_rom + i); - *config_rom_length = j; + *rom_length = j; return config_rom; } @@ -139,7 +150,7 @@ static u32 *generate_config_rom(struct fw_card *card, size_t *config_rom_length) static void update_config_roms(void) { struct fw_card *card; - u32 *config_rom; + __be32 *config_rom; size_t length; list_for_each_entry (card, &card_list, link) { @@ -432,7 +443,7 @@ EXPORT_SYMBOL(fw_card_initialize); int fw_card_add(struct fw_card *card, u32 max_receive, u32 link_speed, u64 guid) { - u32 *config_rom; + __be32 *config_rom; size_t length; int ret; @@ -462,7 +473,8 @@ EXPORT_SYMBOL(fw_card_add); * shutdown still need to be provided by the card driver. */ -static int dummy_enable(struct fw_card *card, u32 *config_rom, size_t length) +static int dummy_enable(struct fw_card *card, + const __be32 *config_rom, size_t length) { BUG(); return -1; @@ -475,7 +487,7 @@ static int dummy_update_phy_reg(struct fw_card *card, int address, } static int dummy_set_config_rom(struct fw_card *card, - u32 *config_rom, size_t length) + const __be32 *config_rom, size_t length) { /* * We take the card out of card_list before setting the dummy |