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| author | Tomas Winkler <tomas.winkler@intel.com> | 2008-04-23 17:14:55 -0700 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-05-07 15:02:17 -0400 |
| commit | 8614f360bdc7db8d35609a9c771601f1d45539e5 (patch) | |
| tree | 9309ba2f774ea22552bafc9f68585ddb3ebce67d /drivers/net/wireless/iwlwifi/iwl-4965.c | |
| parent | b661c8190e91c0baeebf813fec7ff8e99e155a54 (diff) | |
| download | lwn-8614f360bdc7db8d35609a9c771601f1d45539e5.tar.gz lwn-8614f360bdc7db8d35609a9c771601f1d45539e5.zip | |
iwlwifi: check eeprom version in pci probe time
This patch move eeprom version checking into pci probe stage
Signed-off-by: Tomas Winkler <tomas.winkler@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-4965.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965.c | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index d1ddbf34b7fe..a41a83a5f816 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -494,6 +494,31 @@ int iwl4965_hw_rxq_stop(struct iwl_priv *priv) return 0; } +/* + * EEPROM handlers + */ + +static int iwl4965_eeprom_check_version(struct iwl_priv *priv) +{ + u16 eeprom_ver; + u16 calib_ver; + + eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION); + + calib_ver = iwl_eeprom_query16(priv, EEPROM_4965_CALIB_VERSION_OFFSET); + + if (eeprom_ver < EEPROM_4965_EEPROM_VERSION || + calib_ver < EEPROM_4965_TX_POWER_VERSION) + goto err; + + return 0; +err: + IWL_ERROR("Unsuported EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n", + eeprom_ver, EEPROM_4965_EEPROM_VERSION, + calib_ver, EEPROM_4965_TX_POWER_VERSION); + return -EINVAL; + +} int iwl4965_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src) { int ret; @@ -763,12 +788,6 @@ int iwl4965_hw_nic_init(struct iwl_priv *priv) spin_unlock_irqrestore(&priv->lock, flags); - if (iwl_eeprom_query16(priv, EEPROM_4965_CALIB_VERSION_OFFSET) < - EEPROM_4965_TX_POWER_VERSION) { - IWL_ERROR("Older EEPROM detected! Aborting.\n"); - return -EINVAL; - } - pci_read_config_byte(priv->pci_dev, PCI_LINK_CTRL, &val_link); /* disable L1 entry -- workaround for pre-B1 */ @@ -4354,6 +4373,7 @@ static struct iwl_lib_ops iwl4965_lib = { .verify_signature = iwlcore_eeprom_verify_signature, .acquire_semaphore = iwlcore_eeprom_acquire_semaphore, .release_semaphore = iwlcore_eeprom_release_semaphore, + .check_version = iwl4965_eeprom_check_version, .query_addr = iwlcore_eeprom_query_addr, }, .radio_kill_sw = iwl4965_radio_kill_sw, |