diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-3945.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-3945.c | 134 |
1 files changed, 86 insertions, 48 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index 1071dac99c5..2d6daa88e8c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -1077,50 +1077,54 @@ static int iwl3945_txq_ctx_reset(struct iwl_priv *priv) return rc; } -int iwl3945_hw_nic_init(struct iwl_priv *priv) +static int iwl3945_apm_init(struct iwl_priv *priv) { - u8 rev_id; - int rc; - unsigned long flags; - struct iwl_rx_queue *rxq = &priv->rxq; + int ret = 0; iwl3945_power_init_handle(priv); - spin_lock_irqsave(&priv->lock, flags); - iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR39_ANA_PLL_CFG_VAL); iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, - CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX); + CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); + + /* disable L0s without affecting L1 :don't wait for ICH L0s bug W/A) */ + iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, + CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX); + /* set "initialization complete" bit to move adapter + * D0U* --> D0A* state */ iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); - rc = iwl_poll_direct_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); - if (rc < 0) { - spin_unlock_irqrestore(&priv->lock, flags); + + iwl_poll_direct_bit(priv, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); + if (ret < 0) { IWL_DEBUG_INFO("Failed to init the card\n"); - return rc; + goto out; } - rc = iwl_grab_nic_access(priv); - if (rc) { - spin_unlock_irqrestore(&priv->lock, flags); - return rc; - } - iwl_write_prph(priv, APMG_CLK_EN_REG, - APMG_CLK_VAL_DMA_CLK_RQT | - APMG_CLK_VAL_BSM_CLK_RQT); + ret = iwl_grab_nic_access(priv); + if (ret) + goto out; + + /* enable DMA */ + iwl_write_prph(priv, APMG_CLK_CTRL_REG, APMG_CLK_VAL_DMA_CLK_RQT | + APMG_CLK_VAL_BSM_CLK_RQT); + udelay(20); + + /* disable L1-Active */ iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG, - APMG_PCIDEV_STT_VAL_L1_ACT_DIS); + APMG_PCIDEV_STT_VAL_L1_ACT_DIS); + iwl_release_nic_access(priv); - spin_unlock_irqrestore(&priv->lock, flags); +out: + return ret; +} - /* Determine HW type */ - rc = pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &rev_id); - if (rc) - return rc; - IWL_DEBUG_INFO("HW Revision ID = 0x%X\n", rev_id); +static void iwl3945_nic_config(struct iwl_priv *priv) +{ + unsigned long flags; + u8 rev_id = 0; - iwl3945_nic_set_pwr_src(priv, 1); spin_lock_irqsave(&priv->lock, flags); if (rev_id & PCI_CFG_REV_ID_BIT_RTP) @@ -1172,6 +1176,27 @@ int iwl3945_hw_nic_init(struct iwl_priv *priv) if (priv->eeprom39.sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE) IWL_DEBUG_RF_KILL("HW RF KILL supported in EEPROM.\n"); +} + +int iwl3945_hw_nic_init(struct iwl_priv *priv) +{ + u8 rev_id; + int rc; + unsigned long flags; + struct iwl_rx_queue *rxq = &priv->rxq; + + spin_lock_irqsave(&priv->lock, flags); + priv->cfg->ops->lib->apm_ops.init(priv); + spin_unlock_irqrestore(&priv->lock, flags); + + /* Determine HW type */ + rc = pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &rev_id); + if (rc) + return rc; + IWL_DEBUG_INFO("HW Revision ID = 0x%X\n", rev_id); + + iwl3945_nic_set_pwr_src(priv, 1); + priv->cfg->ops->lib->apm_ops.config(priv); /* Allocate the RX queue, or reset if it is already allocated */ if (!rxq->bd) { @@ -1256,10 +1281,9 @@ void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv) iwl3945_hw_txq_ctx_free(priv); } -int iwl3945_hw_nic_stop_master(struct iwl_priv *priv) +static int iwl3945_apm_stop_master(struct iwl_priv *priv) { - int rc = 0; - u32 reg_val; + int ret = 0; unsigned long flags; spin_lock_irqsave(&priv->lock, flags); @@ -1267,33 +1291,41 @@ int iwl3945_hw_nic_stop_master(struct iwl_priv *priv) /* set stop master bit */ iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER); - reg_val = iwl_read32(priv, CSR_GP_CNTRL); + iwl_poll_direct_bit(priv, CSR_RESET, + CSR_RESET_REG_FLAG_MASTER_DISABLED, 100); - if (CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE == - (reg_val & CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE)) - IWL_DEBUG_INFO("Card in power save, master is already " - "stopped\n"); - else { - rc = iwl_poll_direct_bit(priv, CSR_RESET, - CSR_RESET_REG_FLAG_MASTER_DISABLED, 100); - if (rc < 0) { - spin_unlock_irqrestore(&priv->lock, flags); - return rc; - } - } + if (ret < 0) + goto out; +out: spin_unlock_irqrestore(&priv->lock, flags); IWL_DEBUG_INFO("stop master\n"); - return rc; + return ret; +} + +static void iwl3945_apm_stop(struct iwl_priv *priv) +{ + unsigned long flags; + + iwl3945_apm_stop_master(priv); + + spin_lock_irqsave(&priv->lock, flags); + + iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); + + udelay(10); + /* clear "init complete" move adapter D0A* --> D0U state */ + iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + spin_unlock_irqrestore(&priv->lock, flags); } -int iwl3945_hw_nic_reset(struct iwl_priv *priv) +int iwl3945_apm_reset(struct iwl_priv *priv) { int rc; unsigned long flags; - iwl3945_hw_nic_stop_master(priv); + iwl3945_apm_stop_master(priv); spin_lock_irqsave(&priv->lock, flags); @@ -2657,6 +2689,12 @@ static int iwl3945_load_bsm(struct iwl_priv *priv) static struct iwl_lib_ops iwl3945_lib = { .load_ucode = iwl3945_load_bsm, + .apm_ops = { + .init = iwl3945_apm_init, + .reset = iwl3945_apm_reset, + .stop = iwl3945_apm_stop, + .config = iwl3945_nic_config, + }, }; static struct iwl_ops iwl3945_ops = { |