diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-helpers.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-helpers.h | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-helpers.h b/drivers/net/wireless/iwlwifi/iwl-helpers.h index e2a8d95ad9c..cb009f4c401 100644 --- a/drivers/net/wireless/iwlwifi/iwl-helpers.h +++ b/drivers/net/wireless/iwlwifi/iwl-helpers.h @@ -246,10 +246,33 @@ static inline int iwl_check_bits(unsigned long field, unsigned long mask) static inline unsigned long elapsed_jiffies(unsigned long start, unsigned long end) { - if (end > start) + if (end >= start) return end - start; - return end + (MAX_JIFFY_OFFSET - start); + return end + (MAX_JIFFY_OFFSET - start) + 1; +} + +static inline u8 iwl_get_dma_hi_address(dma_addr_t addr) +{ + return sizeof(addr) > sizeof(u32) ? (addr >> 16) >> 16 : 0; +} + +/* TODO: Move fw_desc functions to iwl-pci.ko */ +static inline void iwl_free_fw_desc(struct pci_dev *pci_dev, + struct fw_desc *desc) +{ + if (desc->v_addr) + pci_free_consistent(pci_dev, desc->len, + desc->v_addr, desc->p_addr); + desc->v_addr = NULL; + desc->len = 0; +} + +static inline int iwl_alloc_fw_desc(struct pci_dev *pci_dev, + struct fw_desc *desc) +{ + desc->v_addr = pci_alloc_consistent(pci_dev, desc->len, &desc->p_addr); + return (desc->v_addr != NULL) ? 0 : -ENOMEM; } #endif /* __iwl_helpers_h__ */ |