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-rw-r--r--drivers/net/wireless/iwlwifi/iwl-3945-hw.h6
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-3945.c19
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-4965-hw.h7
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-4965.c23
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-5000.c13
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-agn.c6
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-core.h8
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-power.c6
8 files changed, 40 insertions, 48 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-hw.h b/drivers/net/wireless/iwlwifi/iwl-3945-hw.h
index 1327b2ac1c5..205603d082a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-hw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-hw.h
@@ -229,12 +229,6 @@ struct iwl3945_eeprom {
/* End of EEPROM */
-
-#define PCI_LINK_CTRL 0x0F0
-#define PCI_POWER_SOURCE 0x0C8
-#define PCI_REG_WUM8 0x0E8
-#define PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT (0x80000000)
-
#define PCI_CFG_REV_ID_BIT_BASIC_SKU (0x40) /* bit 6 */
#define PCI_CFG_REV_ID_BIT_RTP (0x80) /* bit 7 */
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index cb6db4525dc..d2df4945ca6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -905,22 +905,18 @@ u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id, u16 tx_rate, u8 flags)
static int iwl3945_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
{
- int rc;
+ int ret;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
- rc = iwl_grab_nic_access(priv);
- if (rc) {
+ ret = iwl_grab_nic_access(priv);
+ if (ret) {
spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
+ return ret;
}
if (src == IWL_PWR_SRC_VAUX) {
- u32 val;
-
- rc = pci_read_config_dword(priv->pci_dev,
- PCI_POWER_SOURCE, &val);
- if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT) {
+ if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) {
iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
~APMG_PS_CTRL_MSK_PWR_SRC);
@@ -929,8 +925,9 @@ static int iwl3945_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
iwl_poll_bit(priv, CSR_GPIO_IN,
CSR_GPIO_IN_VAL_VAUX_PWR_SRC,
CSR_GPIO_IN_BIT_AUX_POWER, 5000);
- } else
+ } else {
iwl_release_nic_access(priv);
+ }
} else {
iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
@@ -942,7 +939,7 @@ static int iwl3945_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
}
spin_unlock_irqrestore(&priv->lock, flags);
- return rc;
+ return ret;
}
static int iwl3945_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h
index af4c1bb0de1..a71a489096f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965-hw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-4965-hw.h
@@ -92,19 +92,12 @@
#define IWL49_RSSI_OFFSET 44
-
/* PCI registers */
#define PCI_CFG_RETRY_TIMEOUT 0x041
-#define PCI_CFG_POWER_SOURCE 0x0C8
-#define PCI_REG_WUM8 0x0E8
-#define PCI_CFG_LINK_CTRL 0x0F0
/* PCI register values */
#define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01
#define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02
-#define PCI_CFG_CMD_REG_INT_DIS_MSK 0x04
-#define PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT (0x80000000)
-
#define IWL_NUM_SCAN_RATES (2)
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 0638f3e3760..ead947b4d30 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -381,27 +381,30 @@ out:
static void iwl4965_nic_config(struct iwl_priv *priv)
{
unsigned long flags;
- u32 val;
+ u16 dctl;
u16 radio_cfg;
- u16 link;
+ u16 lctl;
spin_lock_irqsave(&priv->lock, flags);
if ((priv->rev_id & 0x80) == 0x80 && (priv->rev_id & 0x7f) < 8) {
- pci_read_config_dword(priv->pci_dev, PCI_REG_WUM8, &val);
+ int pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
+ pci_read_config_word(priv->pci_dev, pos + PCI_EXP_DEVCTL, &dctl);
+
/* Enable No Snoop field */
- pci_write_config_dword(priv->pci_dev, PCI_REG_WUM8,
- val & ~(1 << 11));
+ pci_write_config_word(priv->pci_dev, pos + PCI_EXP_DEVCTL,
+ dctl & ~PCI_EXP_DEVCTL_NOSNOOP_EN);
}
- pci_read_config_word(priv->pci_dev, PCI_CFG_LINK_CTRL, &link);
+ lctl = iwl_pcie_link_ctl(priv);
- /* L1 is enabled by BIOS */
- if ((link & PCI_CFG_LINK_CTRL_VAL_L1_EN) == PCI_CFG_LINK_CTRL_VAL_L1_EN)
- /* disable L0S disabled L1A enabled */
+ /* HW bug W/A - negligible power consumption */
+ /* L1-ASPM is enabled by BIOS */
+ if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) == PCI_CFG_LINK_CTRL_VAL_L1_EN)
+ /* L1-ASPM enabled: disable L0S */
iwl_set_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
else
- /* L0S enabled L1A disabled */
+ /* L1-ASPM disabled: enable L0S */
iwl_clear_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index e3cba61d154..ab39f4ae8e3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -219,18 +219,19 @@ static void iwl5000_nic_config(struct iwl_priv *priv)
{
unsigned long flags;
u16 radio_cfg;
- u16 link;
+ u16 lctl;
spin_lock_irqsave(&priv->lock, flags);
- pci_read_config_word(priv->pci_dev, PCI_CFG_LINK_CTRL, &link);
+ lctl = iwl_pcie_link_ctl(priv);
- /* L1 is enabled by BIOS */
- if ((link & PCI_CFG_LINK_CTRL_VAL_L1_EN) == PCI_CFG_LINK_CTRL_VAL_L1_EN)
- /* disable L0S disabled L1A enabled */
+ /* HW bug W/A */
+ /* L1-ASPM is enabled by BIOS */
+ if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) == PCI_CFG_LINK_CTRL_VAL_L1_EN)
+ /* L1-APSM enabled: disable L0S */
iwl_set_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
else
- /* L0S enabled L1A disabled */
+ /* L1-ASPM disabled: enable L0S */
iwl_clear_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 539960da7e1..397577c06c9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -940,11 +940,7 @@ int iwl_set_pwr_src(struct iwl_priv *priv, enum iwl_pwr_src src)
goto err;
if (src == IWL_PWR_SRC_VAUX) {
- u32 val;
- ret = pci_read_config_dword(priv->pci_dev, PCI_CFG_POWER_SOURCE,
- &val);
-
- if (val & PCI_CFG_PMC_PME_FROM_D3COLD_SUPPORT)
+ if (pci_pme_capable(priv->pci_dev, PCI_D3cold))
iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
~APMG_PS_CTRL_MSK_PWR_SRC);
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index d79912ba6a2..9d464ec99dd 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -410,6 +410,14 @@ int iwl_send_card_state(struct iwl_priv *priv, u32 flags,
*****************************************************/
void iwl_disable_interrupts(struct iwl_priv *priv);
void iwl_enable_interrupts(struct iwl_priv *priv);
+static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
+{
+ int pos;
+ u16 pci_lnk_ctl;
+ pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
+ pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
+ return pci_lnk_ctl;
+}
/*****************************************************
* Error Handling Debugging
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 4c5a775f48b..18b7e4195ea 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -141,7 +141,7 @@ static void iwl_power_init_handle(struct iwl_priv *priv)
int size = sizeof(struct iwl_power_vec_entry) * IWL_POWER_MAX;
struct iwl_powertable_cmd *cmd;
int i;
- u16 pci_pm;
+ u16 lctl;
IWL_DEBUG_POWER(priv, "Initialize power \n");
@@ -153,14 +153,14 @@ static void iwl_power_init_handle(struct iwl_priv *priv)
memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
memcpy(&pow_data->pwr_range_2[0], &range_2[0], size);
- pci_read_config_word(priv->pci_dev, PCI_CFG_LINK_CTRL, &pci_pm);
+ lctl = iwl_pcie_link_ctl(priv);
IWL_DEBUG_POWER(priv, "adjust power command flags\n");
for (i = 0; i < IWL_POWER_MAX; i++) {
cmd = &pow_data->pwr_range_0[i].cmd;
- if (pci_pm & PCI_CFG_LINK_CTRL_VAL_L0S_EN)
+ if (lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN)
cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
else
cmd->flags |= IWL_POWER_PCI_PM_MSK;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 01:44:11 +0000