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iwlagn: move iwl_suspend / iwl_resume to the transport layer

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These flows needs to access the APM and a few other registers that can differ
between different transports.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Emmanuel Grumbach 2011-08-25 23:10:52 -07:00 committed by John W. Linville
parent 5a878bf60b
commit 57210f7c9f
8 changed files with 73 additions and 51 deletions
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10
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -1818,7 +1818,7 @@ int iwl_alive_start(struct iwl_priv *priv)
/* Configure Tx antenna selection based on H/W config */
iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant);
if (iwl_is_associated_ctx(ctx) && !priv->wowlan) {
if (iwl_is_associated_ctx(ctx) && !priv->shrd->wowlan) {
struct iwl_rxon_cmd *active_rxon =
(struct iwl_rxon_cmd *)&ctx->active;
/* apply any changes in staging */
@ -1833,7 +1833,7 @@ int iwl_alive_start(struct iwl_priv *priv)
iwlagn_set_rxon_chain(priv, ctx);
}
if (!priv->wowlan) {
if (!priv->shrd->wowlan) {
/* WoWLAN ucode will not reply in the same way, skip it */
iwl_reset_run_time_calib(priv);
}
@ -2593,7 +2593,7 @@ static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
iwl_trans_stop_device(trans(priv));
priv->wowlan = true;
priv->shrd->wowlan = true;
ret = iwlagn_load_ucode_wait_alive(priv, &priv->ucode_wowlan,
IWL_UCODE_WOWLAN);
@ -2693,7 +2693,7 @@ static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
goto out;
error:
priv->wowlan = false;
priv->shrd->wowlan = false;
iwlagn_prepare_restart(priv);
ieee80211_restart_hw(priv->hw);
out:
@ -2745,7 +2745,7 @@ static int iwlagn_mac_resume(struct ieee80211_hw *hw)
/* we'll clear ctx->vif during iwlagn_prepare_restart() */
vif = ctx->vif;
priv->wowlan = false;
priv->shrd->wowlan = false;
device_set_wakeup_enable(priv->bus->dev, false);

41
drivers/net/wireless/iwlwifi/iwl-core.c
View File

@ -1900,44 +1900,3 @@ __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
return cpu_to_le32(res);
}
#ifdef CONFIG_PM
int iwl_suspend(struct iwl_priv *priv)
{
/*
* This function is called when system goes into suspend state
* mac80211 will call iwl_mac_stop() from the mac80211 suspend function
* first but since iwl_mac_stop() has no knowledge of who the caller is,
* it will not call apm_ops.stop() to stop the DMA operation.
* Calling apm_ops.stop here to make sure we stop the DMA.
*
* But of course ... if we have configured WoWLAN then we did other
* things already :-)
*/
if (!priv->wowlan)
iwl_apm_stop(priv);
return 0;
}
int iwl_resume(struct iwl_priv *priv)
{
bool hw_rfkill = false;
iwl_enable_interrupts(priv);
if (!(iwl_read32(priv, CSR_GP_CNTRL) &
CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
hw_rfkill = true;
if (hw_rfkill)
set_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
else
clear_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rfkill);
return 0;
}
#endif /* CONFIG_PM */

2
drivers/net/wireless/iwlwifi/iwl-dev.h
View File

@ -1280,8 +1280,6 @@ struct iwl_priv {
u8 mac80211_registered;
bool wowlan;
/* eeprom -- this is in the card's little endian byte order */
u8 *eeprom;
int nvm_device_type;

4
drivers/net/wireless/iwlwifi/iwl-pci.c
View File

@ -517,7 +517,7 @@ static int iwl_pci_suspend(struct device *device)
* WoWLAN is enabled - don't kill the NIC, someone may need it in Sx.
*/
return iwl_suspend(shrd->priv);
return iwl_trans_suspend(shrd->trans);
}
static int iwl_pci_resume(struct device *device)
@ -536,7 +536,7 @@ static int iwl_pci_resume(struct device *device)
*/
pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
return iwl_resume(shrd->priv);
return iwl_trans_resume(shrd->trans);
}
static SIMPLE_DEV_PM_OPS(iwl_dev_pm_ops, iwl_pci_suspend, iwl_pci_resume);

2
drivers/net/wireless/iwlwifi/iwl-power.c
View File

@ -348,7 +348,7 @@ static void iwl_power_build_cmd(struct iwl_priv *priv,
dtimper = priv->hw->conf.ps_dtim_period ?: 1;
if (priv->wowlan)
if (priv->shrd->wowlan)
iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_5, dtimper);
else if (!priv->cfg->base_params->no_idle_support &&
priv->hw->conf.flags & IEEE80211_CONF_IDLE)

1
drivers/net/wireless/iwlwifi/iwl-shared.h
View File

@ -165,6 +165,7 @@ struct iwl_shared {
u8 cmd_queue;
unsigned long status;
bool wowlan;
struct iwl_bus *bus;
struct iwl_priv *priv;

50
drivers/net/wireless/iwlwifi/iwl-trans.c
View File

@ -1167,6 +1167,54 @@ static void iwl_trans_pcie_free(struct iwl_priv *priv)
trans(priv) = NULL;
}
#ifdef CONFIG_PM
static int iwl_trans_pcie_suspend(struct iwl_trans *trans)
{
/*
* This function is called when system goes into suspend state
* mac80211 will call iwl_mac_stop() from the mac80211 suspend function
* first but since iwl_mac_stop() has no knowledge of who the caller is,
* it will not call apm_ops.stop() to stop the DMA operation.
* Calling apm_ops.stop here to make sure we stop the DMA.
*
* But of course ... if we have configured WoWLAN then we did other
* things already :-)
*/
if (!trans->shrd->wowlan)
iwl_apm_stop(priv(trans));
return 0;
}
static int iwl_trans_pcie_resume(struct iwl_trans *trans)
{
bool hw_rfkill = false;
iwl_enable_interrupts(priv(trans));
if (!(iwl_read32(priv(trans), CSR_GP_CNTRL) &
CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
hw_rfkill = true;
if (hw_rfkill)
set_bit(STATUS_RF_KILL_HW, &trans->shrd->status);
else
clear_bit(STATUS_RF_KILL_HW, &trans->shrd->status);
wiphy_rfkill_set_hw_state(priv(trans)->hw->wiphy, hw_rfkill);
return 0;
}
#else /* CONFIG_PM */
static int iwl_trans_pcie_suspend(struct iwl_trans *trans)
{ return 0; }
static int iwl_trans_pcie_resume(struct iwl_trans *trans)
{ return 0; }
#endif /* CONFIG_PM */
const struct iwl_trans_ops trans_ops_pcie;
static struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd)
@ -1456,5 +1504,7 @@ const struct iwl_trans_ops trans_ops_pcie = {
.free = iwl_trans_pcie_free,
.dbgfs_register = iwl_trans_pcie_dbgfs_register,
.suspend = iwl_trans_pcie_suspend,
.resume = iwl_trans_pcie_resume,
};

14
drivers/net/wireless/iwlwifi/iwl-trans.h
View File

@ -102,6 +102,8 @@ struct iwl_shared;
* irq, tasklet etc...
* @dbgfs_register: add the dbgfs files under this directory. Files will be
* automatically deleted.
* @suspend: stop the device unless WoWLAN is configured
* @resume: resume activity of the device
*/
struct iwl_trans_ops {
@ -134,6 +136,8 @@ struct iwl_trans_ops {
void (*free)(struct iwl_priv *priv);
int (*dbgfs_register)(struct iwl_trans *trans, struct dentry* dir);
int (*suspend)(struct iwl_trans *trans);
int (*resume)(struct iwl_trans *trans);
};
/**
@ -244,6 +248,16 @@ static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans,
return trans->ops->dbgfs_register(trans, dir);
}
static inline int iwl_trans_suspend(struct iwl_trans *trans)
{
return trans->ops->suspend(trans);
}
static inline int iwl_trans_resume(struct iwl_trans *trans)
{
return trans->ops->resume(trans);
}
/*****************************************************
* Transport layers implementations
******************************************************/