From: Samuel Ortiz <samuel@sortiz.org>
To: Helmut Schaa <helmut.schaa@googlemail.com>
Cc: linville@tuxdriver.com, linux-wireless@vger.kernel.org,
tomasw@gmail.com, yi.zhu@intel.com
Subject: Re: [PATCH] iwl3945: remove obsolete irq handling
Date: Fri, 5 Dec 2008 16:20:58 +0100 [thread overview]
Message-ID: <20081205152058.GA4590@sortiz.org> (raw)
In-Reply-To: <200812011653.29150.helmut.schaa@gmail.com>
On Mon, Dec 01, 2008 at 04:53:28PM +0100, Helmut Schaa wrote:
> 3945 hardware does not emit the interrupts CSR_INT_BIT_RF_KILL (rfkill
> toggled) and CSR_INT_BIT_CT_KILL (adapter too hot). Hence this part of code
> can be removed since iwl3945_irq_tasklet does not handle 4965 hw at all.
That's correct.
> Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Samuel Ortiz <samuel.ortiz@intel.com>
> ---
>
> diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
> index 490bc4a..b32b507 100644
> --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
> +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
> @@ -4321,35 +4321,6 @@ static void iwl3945_irq_tasklet(struct iwl3945_priv *priv)
> /* Safely ignore these bits for debug checks below */
> inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
>
> - /* HW RF KILL switch toggled (4965 only) */
> - if (inta & CSR_INT_BIT_RF_KILL) {
> - int hw_rf_kill = 0;
> - if (!(iwl3945_read32(priv, CSR_GP_CNTRL) &
> - CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
> - hw_rf_kill = 1;
> -
> - IWL_DEBUG(IWL_DL_INFO | IWL_DL_RF_KILL | IWL_DL_ISR,
> - "RF_KILL bit toggled to %s.\n",
> - hw_rf_kill ? "disable radio" : "enable radio");
> -
> - /* Queue restart only if RF_KILL switch was set to "kill"
> - * when we loaded driver, and is now set to "enable".
> - * After we're Alive, RF_KILL gets handled by
> - * iwl3945_rx_card_state_notif() */
> - if (!hw_rf_kill && !test_bit(STATUS_ALIVE, &priv->status)) {
> - clear_bit(STATUS_RF_KILL_HW, &priv->status);
> - queue_work(priv->workqueue, &priv->restart);
> - }
> -
> - handled |= CSR_INT_BIT_RF_KILL;
> - }
> -
> - /* Chip got too hot and stopped itself (4965 only) */
> - if (inta & CSR_INT_BIT_CT_KILL) {
> - IWL_ERROR("Microcode CT kill error detected.\n");
> - handled |= CSR_INT_BIT_CT_KILL;
> - }
> -
> /* Error detected by uCode */
> if (inta & CSR_INT_BIT_SW_ERR) {
> IWL_ERROR("Microcode SW error detected. Restarting 0x%X.\n",
> --
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--
Intel Open Source Technology Centre
http://oss.intel.com/
prev parent reply other threads:[~2008-12-05 15:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-01 15:53 [PATCH] iwl3945: remove obsolete irq handling Helmut Schaa
2008-12-05 15:20 ` Samuel Ortiz [this message]
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