From 91238714affef7603446207ad03a594d95d2eb9d Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Wed, 23 Apr 2008 17:14:53 -0700 Subject: [PATCH] iwlwifi: add apm init handler This patch add apm init handler to iwlcore handler Signed-off-by: Tomas Winkler Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-4965.c | 93 +++++++++++---------- drivers/net/wireless/iwlwifi/iwl-core.h | 2 + drivers/net/wireless/iwlwifi/iwl4965-base.c | 18 ++-- 3 files changed, 56 insertions(+), 57 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 2c5bfa4f04..b8c72159b5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -694,62 +694,71 @@ static int iwl4965_txq_ctx_reset(struct iwl_priv *priv) error_kw: return rc; } - -int iwl4965_hw_nic_init(struct iwl_priv *priv) +static int iwl4965_apm_init(struct iwl_priv *priv) { - int rc; unsigned long flags; - struct iwl4965_rx_queue *rxq = &priv->rxq; - u8 rev_id; - u8 val_link; - u16 sku_cap; - u32 val; + int ret = 0; - /* nic_init */ spin_lock_irqsave(&priv->lock, flags); - iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, - CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); + CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); + /* 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_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); - if (rc < 0) { - spin_unlock_irqrestore(&priv->lock, flags); - IWL_DEBUG_INFO("Failed to init the card\n"); - return rc; - } - rc = iwl_grab_nic_access(priv); - if (rc) { - spin_unlock_irqrestore(&priv->lock, flags); - return rc; + /* wait for clock stabilization */ + ret = iwl_poll_bit(priv, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, + CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); + if (ret < 0) { + IWL_DEBUG_INFO("Failed to init the card\n"); + goto out; } - iwl_read_prph(priv, APMG_CLK_CTRL_REG); + 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); - iwl_read_prph(priv, APMG_CLK_CTRL_REG); udelay(20); 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); +out: + spin_unlock_irqrestore(&priv->lock, flags); + return ret; +} + +int iwl4965_hw_nic_init(struct iwl_priv *priv) +{ + unsigned long flags; + struct iwl4965_rx_queue *rxq = &priv->rxq; + u8 rev_id; + u8 val_link; + u32 val; + int ret; + + /* nic_init */ + priv->cfg->ops->lib->apm_ops.init(priv); + + spin_lock_irqsave(&priv->lock, flags); iwl_write32(priv, CSR_INT_COALESCING, 512 / 32); 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; + ret = pci_read_config_byte(priv->pci_dev, PCI_REVISION_ID, &rev_id); + if (ret) + return ret; IWL_DEBUG_INFO("HW Revision ID = 0x%X\n", rev_id); - rc = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN); + ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN); spin_lock_irqsave(&priv->lock, flags); @@ -782,11 +791,11 @@ int iwl4965_hw_nic_init(struct iwl_priv *priv) CSR49_HW_IF_CONFIG_REG_BIT_RADIO_SI | CSR49_HW_IF_CONFIG_REG_BIT_MAC_SI); - rc = iwl_grab_nic_access(priv); - if (rc < 0) { + ret = iwl_grab_nic_access(priv); + if (ret < 0) { spin_unlock_irqrestore(&priv->lock, flags); IWL_DEBUG_INFO("Failed to init the card\n"); - return rc; + return ret; } iwl_read_prph(priv, APMG_PS_CTRL_REG); @@ -803,8 +812,8 @@ int iwl4965_hw_nic_init(struct iwl_priv *priv) /* Allocate the RX queue, or reset if it is already allocated */ if (!rxq->bd) { - rc = iwl4965_rx_queue_alloc(priv); - if (rc) { + ret = iwl4965_rx_queue_alloc(priv); + if (ret) { IWL_ERROR("Unable to initialize Rx queue\n"); return -ENOMEM; } @@ -827,16 +836,9 @@ int iwl4965_hw_nic_init(struct iwl_priv *priv) spin_unlock_irqrestore(&priv->lock, flags); /* Allocate and init all Tx and Command queues */ - rc = iwl4965_txq_ctx_reset(priv); - if (rc) - return rc; - - sku_cap = iwl_eeprom_query16(priv, EEPROM_SKU_CAP); - if (sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE) - IWL_DEBUG_RF_KILL("SW RF KILL supported in EEPROM.\n"); - - if (sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE) - IWL_DEBUG_RF_KILL("HW RF KILL supported in EEPROM.\n"); + ret = iwl4965_txq_ctx_reset(priv); + if (ret) + return ret; set_bit(STATUS_INIT, &priv->status); @@ -4344,6 +4346,7 @@ static struct iwl_lib_ops iwl4965_lib = { .alive_notify = iwl4965_alive_notify, .load_ucode = iwl4965_load_bsm, .apm_ops = { + .init = iwl4965_apm_init, .set_pwr_src = iwl4965_set_pwr_src, }, .eeprom_ops = { diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index 79e97935bb..edda2ff92f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -115,7 +115,9 @@ struct iwl_lib_ops { int (*load_ucode)(struct iwl_priv *priv); /* rfkill */ void (*radio_kill_sw)(struct iwl_priv *priv, int disable_radio); + /* power management */ struct { + int (*init)(struct iwl_priv *priv); int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src); } apm_ops; /* power */ diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c index 1f5e7e6fa6..c837503c1e 100644 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c @@ -7462,21 +7462,15 @@ static int iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e printk(KERN_INFO DRV_NAME ": Detected Intel Wireless WiFi Link %s\n", priv->cfg->name); - /***************** - * 4. Read EEPROM - *****************/ - /* nic init */ - iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS, - CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); - - iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); - err = iwl_poll_bit(priv, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, - CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000); + /* amp init */ + err = priv->cfg->ops->lib->apm_ops.init(priv); if (err < 0) { - IWL_DEBUG_INFO("Failed to init the card\n"); + IWL_DEBUG_INFO("Failed to init APMG\n"); goto out_iounmap; } + /***************** + * 4. Read EEPROM + *****************/ /* Read the EEPROM */ err = iwl_eeprom_init(priv); if (err) { -- 2.39.5