diff options
author | Tomas Winkler <tomas.winkler@intel.com> | 2007-10-25 17:15:37 +0800 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-01-28 15:03:17 -0800 |
commit | ac17a947a4f47b642097d6814d6dcc60c297eb17 (patch) | |
tree | ca77e4c90f23631433548fb8a5a9a57611315b04 /drivers/net/wireless/iwlwifi/iwl-io.h | |
parent | af7cca2a441f6e2ebeb2a920ef5af1bec8df96e8 (diff) | |
download | linux-next-ac17a947a4f47b642097d6814d6dcc60c297eb17.tar.gz |
iwlwifi: replacing wording restricted to nic access in iwl-io
This patch replaces wording 'restricted' with more appropriate 'nic access'
NIC access is grabbed to prevent NIC entering power save mode
General cleanup of iwl-io.h
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-io.h')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-io.h | 146 |
1 files changed, 72 insertions, 74 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-io.h b/drivers/net/wireless/iwlwifi/iwl-io.h index 5cdcfc43fa14..43afcda6f73e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-io.h +++ b/drivers/net/wireless/iwlwifi/iwl-io.h @@ -42,15 +42,14 @@ * check or debug information is printed when that function is called. * * A double __ prefix before an access function means that state is checked - * (in the case of *restricted calls) and the current line number is printed - * in addition to any other debug output. + * and the current line number is printed in addition to any other debug output. * * The non-prefixed name is the #define that maps the caller into a * #define that provides the caller's __LINE__ to the double prefix version. * * If you wish to call the function without any debug or state checking, * you should use the single _ prefix version (as is used by dependent IO - * routines, for example _iwl_read_restricted calls the non-check version of + * routines, for example _iwl_read_direct32 calls the non-check version of * _iwl_read32.) * * These declarations are *extremely* useful in quickly isolating code deltas @@ -65,8 +64,7 @@ static inline void __iwl_write32(const char *f, u32 l, struct iwl_priv *iwl, u32 ofs, u32 val) { - IWL_DEBUG_IO("write_direct32(0x%08X, 0x%08X) - %s %d\n", - (u32) (ofs), (u32) (val), f, l); + IWL_DEBUG_IO("write32(0x%08X, 0x%08X) - %s %d\n", ofs, val, f, l); _iwl_write32(iwl, ofs, val); } #define iwl_write32(iwl, ofs, val) \ @@ -106,16 +104,16 @@ static inline int __iwl_poll_bit(const char *f, u32 l, struct iwl_priv *priv, u32 addr, u32 bits, u32 mask, int timeout) { - int rc = _iwl_poll_bit(priv, addr, bits, mask, timeout); - if (unlikely(rc == -ETIMEDOUT)) + int ret = _iwl_poll_bit(priv, addr, bits, mask, timeout); + if (unlikely(ret == -ETIMEDOUT)) IWL_DEBUG_IO ("poll_bit(0x%08X, 0x%08X, 0x%08X) - timedout - %s %d\n", addr, bits, mask, f, l); else IWL_DEBUG_IO ("poll_bit(0x%08X, 0x%08X, 0x%08X) = 0x%08X - %s %d\n", - addr, bits, mask, rc, f, l); - return rc; + addr, bits, mask, ret, f, l); + return ret; } #define iwl_poll_bit(iwl, addr, bits, mask, timeout) \ __iwl_poll_bit(__FILE__, __LINE__, iwl, addr, bits, mask, timeout) @@ -157,9 +155,9 @@ static inline void __iwl_clear_bit(const char *f, u32 l, #define iwl_clear_bit(p, r, m) _iwl_clear_bit(p, r, m) #endif -static inline int _iwl_grab_restricted_access(struct iwl_priv *priv) +static inline int _iwl_grab_nic_access(struct iwl_priv *priv) { - int rc; + int ret; u32 gp_ctl; #ifdef CONFIG_IWLWIFI_DEBUG @@ -184,11 +182,11 @@ static inline int _iwl_grab_restricted_access(struct iwl_priv *priv) /* this bit wakes up the NIC */ _iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); - rc = _iwl_poll_bit(priv, CSR_GP_CNTRL, + ret = _iwl_poll_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN, (CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY | CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 50); - if (rc < 0) { + if (ret < 0) { IWL_ERROR("MAC is in deep sleep!\n"); return -EIO; } @@ -200,25 +198,24 @@ static inline int _iwl_grab_restricted_access(struct iwl_priv *priv) } #ifdef CONFIG_IWLWIFI_DEBUG -static inline int __iwl_grab_restricted_access(const char *f, u32 l, +static inline int __iwl_grab_nic_access(const char *f, u32 l, struct iwl_priv *priv) { if (atomic_read(&priv->restrict_refcnt)) IWL_DEBUG_INFO("Grabbing access while already held at " "line %d.\n", l); - IWL_DEBUG_IO("grabbing restricted access - %s %d\n", f, l); - - return _iwl_grab_restricted_access(priv); + IWL_DEBUG_IO("grabbing nic access - %s %d\n", f, l); + return _iwl_grab_nic_access(priv); } -#define iwl_grab_restricted_access(priv) \ - __iwl_grab_restricted_access(__FILE__, __LINE__, priv) +#define iwl_grab_nic_access(priv) \ + __iwl_grab_nic_access(__FILE__, __LINE__, priv) #else -#define iwl_grab_restricted_access(priv) \ - _iwl_grab_restricted_access(priv) +#define iwl_grab_nic_access(priv) \ + _iwl_grab_nic_access(priv) #endif -static inline void _iwl_release_restricted_access(struct iwl_priv *priv) +static inline void _iwl_release_nic_access(struct iwl_priv *priv) { #ifdef CONFIG_IWLWIFI_DEBUG if (atomic_dec_and_test(&priv->restrict_refcnt)) @@ -227,80 +224,80 @@ static inline void _iwl_release_restricted_access(struct iwl_priv *priv) CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); } #ifdef CONFIG_IWLWIFI_DEBUG -static inline void __iwl_release_restricted_access(const char *f, u32 l, - struct iwl_priv *priv) +static inline void __iwl_release_nic_access(const char *f, u32 l, + struct iwl_priv *priv) { if (atomic_read(&priv->restrict_refcnt) <= 0) - IWL_ERROR("Release unheld restricted access at line %d.\n", l); + IWL_ERROR("Release unheld nic access at line %d.\n", l); - IWL_DEBUG_IO("releasing restricted access - %s %d\n", f, l); - _iwl_release_restricted_access(priv); + IWL_DEBUG_IO("releasing nic access - %s %d\n", f, l); + _iwl_release_nic_access(priv); } -#define iwl_release_restricted_access(priv) \ - __iwl_release_restricted_access(__FILE__, __LINE__, priv) +#define iwl_release_nic_access(priv) \ + __iwl_release_nic_access(__FILE__, __LINE__, priv) #else -#define iwl_release_restricted_access(priv) \ - _iwl_release_restricted_access(priv) +#define iwl_release_nic_access(priv) \ + _iwl_release_nic_access(priv) #endif -static inline u32 _iwl_read_restricted(struct iwl_priv *priv, u32 reg) +static inline u32 _iwl_read_direct32(struct iwl_priv *priv, u32 reg) { return _iwl_read32(priv, reg); } #ifdef CONFIG_IWLWIFI_DEBUG -static inline u32 __iwl_read_restricted(const char *f, u32 l, +static inline u32 __iwl_read_direct32(const char *f, u32 l, struct iwl_priv *priv, u32 reg) { - u32 value = _iwl_read_restricted(priv, reg); + u32 value = _iwl_read_direct32(priv, reg); if (!atomic_read(&priv->restrict_refcnt)) - IWL_ERROR("Unrestricted access from %s %d\n", f, l); - IWL_DEBUG_IO("read_restricted(0x%4X) = 0x%08x - %s %d \n", reg, value, + IWL_ERROR("Nic access not held from %s %d\n", f, l); + IWL_DEBUG_IO("read_direct32(0x%4X) = 0x%08x - %s %d \n", reg, value, f, l); return value; } -#define iwl_read_restricted(priv, reg) \ - __iwl_read_restricted(__FILE__, __LINE__, priv, reg) +#define iwl_read_direct32(priv, reg) \ + __iwl_read_direct32(__FILE__, __LINE__, priv, reg) #else -#define iwl_read_restricted _iwl_read_restricted +#define iwl_read_direct32 _iwl_read_direct32 #endif -static inline void _iwl_write_restricted(struct iwl_priv *priv, +static inline void _iwl_write_direct32(struct iwl_priv *priv, u32 reg, u32 value) { _iwl_write32(priv, reg, value); } #ifdef CONFIG_IWLWIFI_DEBUG -static void __iwl_write_restricted(u32 line, +static void __iwl_write_direct32(u32 line, struct iwl_priv *priv, u32 reg, u32 value) { if (!atomic_read(&priv->restrict_refcnt)) - IWL_ERROR("Unrestricted access from line %d\n", line); - _iwl_write_restricted(priv, reg, value); + IWL_ERROR("Nic access not held from line %d\n", line); + _iwl_write_direct32(priv, reg, value); } -#define iwl_write_restricted(priv, reg, value) \ - __iwl_write_restricted(__LINE__, priv, reg, value) +#define iwl_write_direct32(priv, reg, value) \ + __iwl_write_direct32(__LINE__, priv, reg, value) #else -#define iwl_write_restricted _iwl_write_restricted +#define iwl_write_direct32 _iwl_write_direct32 #endif -static inline void iwl_write_buffer_restricted(struct iwl_priv *priv, +static inline void iwl_write_reg_buf(struct iwl_priv *priv, u32 reg, u32 len, u32 *values) { u32 count = sizeof(u32); if ((priv != NULL) && (values != NULL)) { for (; 0 < len; len -= count, reg += count, values++) - _iwl_write_restricted(priv, reg, *values); + _iwl_write_direct32(priv, reg, *values); } } -static inline int _iwl_poll_restricted_bit(struct iwl_priv *priv, +static inline int _iwl_poll_direct_bit(struct iwl_priv *priv, u32 addr, u32 mask, int timeout) { int i = 0; do { - if ((_iwl_read_restricted(priv, addr) & mask) == mask) + if ((_iwl_read_direct32(priv, addr) & mask) == mask) return i; mdelay(10); i += 10; @@ -310,36 +307,36 @@ static inline int _iwl_poll_restricted_bit(struct iwl_priv *priv, } #ifdef CONFIG_IWLWIFI_DEBUG -static inline int __iwl_poll_restricted_bit(const char *f, u32 l, +static inline int __iwl_poll_direct_bit(const char *f, u32 l, struct iwl_priv *priv, u32 addr, u32 mask, int timeout) { - int rc = _iwl_poll_restricted_bit(priv, addr, mask, timeout); + int ret = _iwl_poll_direct_bit(priv, addr, mask, timeout); - if (unlikely(rc == -ETIMEDOUT)) - IWL_DEBUG_IO("poll_restricted_bit(0x%08X, 0x%08X) - " + if (unlikely(ret == -ETIMEDOUT)) + IWL_DEBUG_IO("poll_direct_bit(0x%08X, 0x%08X) - " "timedout - %s %d\n", addr, mask, f, l); else - IWL_DEBUG_IO("poll_restricted_bit(0x%08X, 0x%08X) = 0x%08X " - "- %s %d\n", addr, mask, rc, f, l); - return rc; + IWL_DEBUG_IO("poll_direct_bit(0x%08X, 0x%08X) = 0x%08X " + "- %s %d\n", addr, mask, ret, f, l); + return ret; } -#define iwl_poll_restricted_bit(iwl, addr, mask, timeout) \ - __iwl_poll_restricted_bit(__FILE__, __LINE__, iwl, addr, mask, timeout) +#define iwl_poll_direct_bit(iwl, addr, mask, timeout) \ + __iwl_poll_direct_bit(__FILE__, __LINE__, iwl, addr, mask, timeout) #else -#define iwl_poll_restricted_bit _iwl_poll_restricted_bit +#define iwl_poll_direct_bit _iwl_poll_direct_bit #endif static inline u32 _iwl_read_prph(struct iwl_priv *priv, u32 reg) { - _iwl_write_restricted(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24)); - return _iwl_read_restricted(priv, HBUS_TARG_PRPH_RDAT); + _iwl_write_direct32(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24)); + return _iwl_read_direct32(priv, HBUS_TARG_PRPH_RDAT); } #ifdef CONFIG_IWLWIFI_DEBUG static inline u32 __iwl_read_prph(u32 line, struct iwl_priv *priv, u32 reg) { if (!atomic_read(&priv->restrict_refcnt)) - IWL_ERROR("Unrestricted access from line %d\n", line); + IWL_ERROR("Nic access not held from line %d\n", line); return _iwl_read_prph(priv, reg); } @@ -352,16 +349,16 @@ static inline u32 __iwl_read_prph(u32 line, struct iwl_priv *priv, u32 reg) static inline void _iwl_write_prph(struct iwl_priv *priv, u32 addr, u32 val) { - _iwl_write_restricted(priv, HBUS_TARG_PRPH_WADDR, + _iwl_write_direct32(priv, HBUS_TARG_PRPH_WADDR, ((addr & 0x0000FFFF) | (3 << 24))); - _iwl_write_restricted(priv, HBUS_TARG_PRPH_WDAT, val); + _iwl_write_direct32(priv, HBUS_TARG_PRPH_WDAT, val); } #ifdef CONFIG_IWLWIFI_DEBUG static inline void __iwl_write_prph(u32 line, struct iwl_priv *priv, u32 addr, u32 val) { if (!atomic_read(&priv->restrict_refcnt)) - IWL_ERROR("Unrestricted access from line %d\n", line); + IWL_ERROR("Nic access from line %d\n", line); _iwl_write_prph(priv, addr, val); } @@ -378,7 +375,8 @@ static inline void __iwl_set_bits_prph(u32 line, struct iwl_priv *priv, u32 reg, u32 mask) { if (!atomic_read(&priv->restrict_refcnt)) - IWL_ERROR("Unrestricted access from line %d\n", line); + IWL_ERROR("Nic access not held from line %d\n", line); + _iwl_set_bits_prph(priv, reg, mask); } #define iwl_set_bits_prph(priv, reg, mask) \ @@ -395,7 +393,7 @@ static inline void __iwl_set_bits_mask_prph(u32 line, struct iwl_priv *priv, u32 reg, u32 bits, u32 mask) { if (!atomic_read(&priv->restrict_refcnt)) - IWL_ERROR("Unrestricted access from line %d\n", line); + IWL_ERROR("Nic access not held from line %d\n", line); _iwl_set_bits_mask_prph(priv, reg, bits, mask); } #define iwl_set_bits_mask_prph(priv, reg, bits, mask) \ @@ -413,21 +411,21 @@ static inline void iwl_clear_bits_prph(struct iwl_priv static inline u32 iwl_read_targ_mem(struct iwl_priv *priv, u32 addr) { - iwl_write_restricted(priv, HBUS_TARG_MEM_RADDR, addr); - return iwl_read_restricted(priv, HBUS_TARG_MEM_RDAT); + iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR, addr); + return iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT); } static inline void iwl_write_targ_mem(struct iwl_priv *priv, u32 addr, u32 val) { - iwl_write_restricted(priv, HBUS_TARG_MEM_WADDR, addr); - iwl_write_restricted(priv, HBUS_TARG_MEM_WDAT, val); + iwl_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr); + iwl_write_direct32(priv, HBUS_TARG_MEM_WDAT, val); } static inline void iwl_write_targ_mem_buf(struct iwl_priv *priv, u32 addr, u32 len, u32 *values) { - iwl_write_restricted(priv, HBUS_TARG_MEM_WADDR, addr); + iwl_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr); for (; 0 < len; len -= sizeof(u32), values++) - iwl_write_restricted(priv, HBUS_TARG_MEM_WDAT, *values); + iwl_write_direct32(priv, HBUS_TARG_MEM_WDAT, *values); } #endif |