diff options
| author | Wey-Yi Guy <wey-yi.w.guy@intel.com> | 2009-08-14 00:30:54 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-08-20 19:33:11 +0400 |
| commit | 415e49936b4b29b34c2fb561eeab867d41fc43a6 (patch) | |
| tree | 2cf697d948c5eb0256b29d3c60a45f7c00ab1337 /drivers/net/wireless/iwlwifi/iwl-eeprom.h | |
| parent | 3b24716fc978db9c27c4a069e5201460479340a4 (diff) | |
| download | linux-415e49936b4b29b34c2fb561eeab867d41fc43a6.tar.xz | |
iwlwifi: traverse linklist to find the valid OTP block
For devices using OTP memory, EEPROM image can start from
any one of the OTP blocks. If shadow RAM is disabled, we need to
traverse link list to find the last valid block, then start the EEPROM
image reading.
If OTP is not full, the valid block is the block _before_ the last block
on the link list; the last block on the link list is the empty block
ready for next OTP refresh/update.
If OTP is full, then the last block is the valid block to be used for
configure the device.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-eeprom.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-eeprom.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.h b/drivers/net/wireless/iwlwifi/iwl-eeprom.h index 05d4fc4451dc..ca7920a8f52f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom.h +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.h @@ -180,8 +180,14 @@ struct iwl_eeprom_channel { #define EEPROM_5050_EEPROM_VERSION (0x21E) /* OTP */ -#define OTP_LOWER_BLOCKS_TOTAL (3) -#define OTP_BLOCK_SIZE (0x400) +/* lower blocks contain EEPROM image and calibration data */ +#define OTP_LOW_IMAGE_SIZE (2 * 512 * sizeof(u16)) /* 2 KB */ +/* high blocks contain PAPD data */ +#define OTP_HIGH_IMAGE_SIZE_6x00 (6 * 512 * sizeof(u16)) /* 6 KB */ +#define OTP_HIGH_IMAGE_SIZE_1000 (0x200 * sizeof(u16)) /* 1024 bytes */ +#define OTP_MAX_LL_ITEMS_1000 (3) /* OTP blocks for 1000 */ +#define OTP_MAX_LL_ITEMS_6x00 (4) /* OTP blocks for 6x00 */ +#define OTP_MAX_LL_ITEMS_6x50 (7) /* OTP blocks for 6x50 */ /* 2.4 GHz */ extern const u8 iwl_eeprom_band_1[14]; |