diff options
author | David S. Miller <davem@davemloft.net> | 2010-06-11 11:34:06 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2010-06-11 11:34:06 -0700 |
commit | 14599f1e341ee219abdd15f4eee5872d6f2d29f1 (patch) | |
tree | 3875181429010e58416ab34e6c06ef42de52e756 /drivers/net/wireless/iwlwifi/iwl-helpers.h | |
parent | d8d1f30b95a635dbd610dcc5eb641aca8f4768cf (diff) | |
parent | 832c10fd733893f86c63bde1c65b005d5a2fe346 (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
Conflicts:
drivers/net/wireless/wl12xx/wl1271.h
drivers/net/wireless/wl12xx/wl1271_cmd.h
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-helpers.h')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-helpers.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-helpers.h b/drivers/net/wireless/iwlwifi/iwl-helpers.h index 3ff6b9d25a1..621abe3c5af 100644 --- a/drivers/net/wireless/iwlwifi/iwl-helpers.h +++ b/drivers/net/wireless/iwlwifi/iwl-helpers.h @@ -92,6 +92,11 @@ 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 +175,26 @@ 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__ */ |