summaryrefslogtreecommitdiff
path: root/drivers/firewire/core-card.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/firewire/core-card.c')
-rw-r--r--drivers/firewire/core-card.c62
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