diff options
| author | Stanislaw Gruszka <sgruszka@redhat.com> | 2012-03-07 09:52:28 -0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-03-08 13:59:52 -0500 |
| commit | 8722c899a07f45457464803142bd1c2d2a2c3bd8 (patch) | |
| tree | b633a2836ef0ad1905ed0836dcd74bceea14b3b5 /drivers | |
| parent | c2945f390dbc725f3c3ef044a6a3f4e3909a7758 (diff) | |
| download | linux-8722c899a07f45457464803142bd1c2d2a2c3bd8.tar.bz2 | |
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')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans-pcie-rx.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans-pcie.c | 13 |
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; |