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authorDavid S. Miller <davem@davemloft.net>2011-05-06 01:09:28 +0400
committerDavid S. Miller <davem@davemloft.net>2011-05-06 01:09:28 +0400
commit90864fbc7639d7a2300c67a18c9fb9fbcf7d51d2 (patch)
tree6951c8d0e529dbfc7c4cec75d4cec63350e39b7c /drivers/net/wireless/iwlwifi/iwl-io.c
parent228e548e602061b08ee8e8966f567c12aa079682 (diff)
parenta70171dce9cd44cb06c7d299eba9fa87a8933045 (diff)
downloadlinux-90864fbc7639d7a2300c67a18c9fb9fbcf7d51d2.tar.xz
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-io.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-io.c36
1 files changed, 28 insertions, 8 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-io.c b/drivers/net/wireless/iwlwifi/iwl-io.c
index 51337416e4ca..aa4a90674452 100644
--- a/drivers/net/wireless/iwlwifi/iwl-io.c
+++ b/drivers/net/wireless/iwlwifi/iwl-io.c
@@ -73,10 +73,9 @@ int iwl_poll_bit(struct iwl_priv *priv, u32 addr,
return -ETIMEDOUT;
}
-int iwl_grab_nic_access(struct iwl_priv *priv)
+int iwl_grab_nic_access_silent(struct iwl_priv *priv)
{
int ret;
- u32 val;
lockdep_assert_held(&priv->reg_lock);
@@ -107,9 +106,6 @@ int iwl_grab_nic_access(struct iwl_priv *priv)
(CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY |
CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 15000);
if (ret < 0) {
- val = iwl_read32(priv, CSR_GP_CNTRL);
- IWL_ERR(priv,
- "MAC is in deep sleep!. CSR_GP_CNTRL = 0x%08X\n", val);
iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_FORCE_NMI);
return -EIO;
}
@@ -117,6 +113,18 @@ int iwl_grab_nic_access(struct iwl_priv *priv)
return 0;
}
+int iwl_grab_nic_access(struct iwl_priv *priv)
+{
+ int ret = iwl_grab_nic_access_silent(priv);
+ if (ret) {
+ u32 val = iwl_read32(priv, CSR_GP_CNTRL);
+ IWL_ERR(priv,
+ "MAC is in deep sleep!. CSR_GP_CNTRL = 0x%08X\n", val);
+ }
+
+ return ret;
+}
+
void iwl_release_nic_access(struct iwl_priv *priv)
{
lockdep_assert_held(&priv->reg_lock);
@@ -242,20 +250,32 @@ void iwl_clear_bits_prph(struct iwl_priv *priv, u32 reg, u32 mask)
spin_unlock_irqrestore(&priv->reg_lock, flags);
}
-u32 iwl_read_targ_mem(struct iwl_priv *priv, u32 addr)
+void _iwl_read_targ_mem_words(struct iwl_priv *priv, u32 addr,
+ void *buf, int words)
{
unsigned long flags;
- u32 value;
+ int offs;
+ u32 *vals = buf;
spin_lock_irqsave(&priv->reg_lock, flags);
iwl_grab_nic_access(priv);
iwl_write32(priv, HBUS_TARG_MEM_RADDR, addr);
rmb();
- value = iwl_read32(priv, HBUS_TARG_MEM_RDAT);
+
+ for (offs = 0; offs < words; offs++)
+ vals[offs] = iwl_read32(priv, HBUS_TARG_MEM_RDAT);
iwl_release_nic_access(priv);
spin_unlock_irqrestore(&priv->reg_lock, flags);
+}
+
+u32 iwl_read_targ_mem(struct iwl_priv *priv, u32 addr)
+{
+ u32 value;
+
+ _iwl_read_targ_mem_words(priv, addr, &value, 1);
+
return value;
}