diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-helpers.h')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-helpers.h | 32 |
1 files changed, 27 insertions, 5 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-helpers.h b/drivers/net/wireless/iwlwifi/iwl-helpers.h index 3ff6b9d25a10..1aaef70deaec 100644 --- a/drivers/net/wireless/iwlwifi/iwl-helpers.h +++ b/drivers/net/wireless/iwlwifi/iwl-helpers.h @@ -44,11 +44,6 @@ static inline struct ieee80211_conf *ieee80211_get_hw_conf( return &hw->conf; } -static inline int iwl_check_bits(unsigned long field, unsigned long mask) -{ - return ((field & mask) == mask) ? 1 : 0; -} - static inline unsigned long elapsed_jiffies(unsigned long start, unsigned long end) { @@ -92,6 +87,11 @@ static inline void iwl_free_fw_desc(struct pci_dev *pci_dev, static inline int iwl_alloc_fw_desc(struct pci_dev *pci_dev, struct fw_desc *desc) { + if (!desc->len) { + desc->v_addr = NULL; + return -EINVAL; + } + desc->v_addr = dma_alloc_coherent(&pci_dev->dev, desc->len, &desc->p_addr, GFP_KERNEL); return (desc->v_addr != NULL) ? 0 : -ENOMEM; @@ -170,4 +170,26 @@ static inline void iwl_enable_interrupts(struct iwl_priv *priv) iwl_write32(priv, CSR_INT_MASK, priv->inta_mask); } +/** + * iwl_beacon_time_mask_low - mask of lower 32 bit of beacon time + * @priv -- pointer to iwl_priv data structure + * @tsf_bits -- number of bits need to shift for masking) + */ +static inline u32 iwl_beacon_time_mask_low(struct iwl_priv *priv, + u16 tsf_bits) +{ + return (1 << tsf_bits) - 1; +} + +/** + * iwl_beacon_time_mask_high - mask of higher 32 bit of beacon time + * @priv -- pointer to iwl_priv data structure + * @tsf_bits -- number of bits need to shift for masking) + */ +static inline u32 iwl_beacon_time_mask_high(struct iwl_priv *priv, + u16 tsf_bits) +{ + return ((1 << (32 - tsf_bits)) - 1) << tsf_bits; +} + #endif /* __iwl_helpers_h__ */ |