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authorStanislaw Gruszka <sgruszka@redhat.com>2012-03-07 09:52:28 -0800
committerJohn W. Linville <linville@tuxdriver.com>2012-03-08 13:59:52 -0500
commit8722c899a07f45457464803142bd1c2d2a2c3bd8 (patch)
treeb633a2836ef0ad1905ed0836dcd74bceea14b3b5 /drivers/net
parentc2945f390dbc725f3c3ef044a6a3f4e3909a7758 (diff)
downloadlinux-stericsson-8722c899a07f45457464803142bd1c2d2a2c3bd8.tar.gz
iwlwifi: reintroduce iwl_enable_rfkill_int
If device is disabled by rfkill switch, do not enable all interrupts, but only CSR_INT_BIT_RF_KILL to receive rfkill state change. Unblocking other interrupts might cause problems, since driver can not be prepared for receive them. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h6
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c6
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-trans-pcie.c13
3 files changed, 16 insertions, 9 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h
index 4f73a6d06509..93d89a375a1c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h
@@ -376,6 +376,12 @@ static inline void iwl_enable_interrupts(struct iwl_trans *trans)
iwl_write32(trans, CSR_INT_MASK, trans_pcie->inta_mask);
}
+static inline void iwl_enable_rfkill_int(struct iwl_trans *trans)
+{
+ IWL_DEBUG_ISR(trans, "Enabling rfkill interrupt\n");
+ iwl_write32(trans, CSR_INT_MASK, CSR_INT_BIT_RF_KILL);
+}
+
/*
* we have 8 bits used like this:
*
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c
index 787229b352f6..2d6ea42b0d8e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c
@@ -1134,10 +1134,8 @@ void iwl_irq_tasklet(struct iwl_trans *trans)
if (test_bit(STATUS_INT_ENABLED, &trans->shrd->status))
iwl_enable_interrupts(trans);
/* Re-enable RF_KILL if it occurred */
- else if (handled & CSR_INT_BIT_RF_KILL) {
- IWL_DEBUG_ISR(trans, "Enabling rfkill interrupt\n");
- iwl_write32(trans, CSR_INT_MASK, CSR_INT_BIT_RF_KILL);
- }
+ else if (handled & CSR_INT_BIT_RF_KILL)
+ iwl_enable_rfkill_int(trans);
}
/******************************************************************************
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
index aced6f8ae1e9..88e1c427f8f5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
@@ -1044,7 +1044,7 @@ static int iwl_trans_pcie_start_fw(struct iwl_trans *trans,
iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill);
if (hw_rfkill) {
- iwl_enable_interrupts(trans);
+ iwl_enable_rfkill_int(trans);
return -ERFKILL;
}
@@ -1553,8 +1553,7 @@ static void iwl_trans_pcie_stop_hw(struct iwl_trans *trans)
iwl_write32(trans, CSR_INT, 0xFFFFFFFF);
/* Even if we stop the HW, we still want the RF kill interrupt */
- IWL_DEBUG_ISR(trans, "Enabling rfkill interrupt\n");
- iwl_write32(trans, CSR_INT_MASK, CSR_INT_BIT_RF_KILL);
+ iwl_enable_rfkill_int(trans);
}
static int iwl_trans_pcie_reclaim(struct iwl_trans *trans, int sta_id, int tid,
@@ -1647,10 +1646,14 @@ static int iwl_trans_pcie_resume(struct iwl_trans *trans)
{
bool hw_rfkill;
- iwl_enable_interrupts(trans);
-
hw_rfkill = !(iwl_read32(trans, CSR_GP_CNTRL) &
CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW);
+
+ if (hw_rfkill)
+ iwl_enable_rfkill_int(trans);
+ else
+ iwl_enable_interrupts(trans);
+
iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill);
return 0;