diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 319df4ab7f1347d861c5add6aa916a59195143f5..2232b1794e766fd0aa1b2281ec39401318567991 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -1606,7 +1606,7 @@ static void iwl_alive_start(struct iwl_priv *priv)
set_bit(STATUS_READY, &priv->status);
wake_up_interruptible(&priv->wait_command_queue);
- iwl_power_update_mode(priv, 1);
+ iwl_power_update_mode(priv, true);
/* reassociate for ADHOC mode */
if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) {
@@ -2075,7 +2075,7 @@ void iwl_post_associate(struct iwl_priv *priv)
* If chain noise has already been run, then we need to enable
* power management here */
if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE)
- iwl_power_update_mode(priv, 0);
+ iwl_power_update_mode(priv, false);
/* Enable Rx differential gain and sensitivity calibrations */
iwl_chain_noise_reset(priv);
@@ -2565,47 +2565,6 @@ static ssize_t store_filter_flags(struct device *d,
static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
store_filter_flags);
-static ssize_t store_power_level(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- int ret;
- unsigned long mode;
-
-
- mutex_lock(&priv->mutex);
-
- ret = strict_strtoul(buf, 10, &mode);
- if (ret)
- goto out;
-
- ret = iwl_power_set_user_mode(priv, mode);
- if (ret) {
- IWL_DEBUG_MAC80211(priv, "failed setting power mode.\n");
- goto out;
- }
- ret = count;
-
- out:
- mutex_unlock(&priv->mutex);
- return ret;
-}
-
-static ssize_t show_power_level(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- int level = priv->power_data.power_mode;
- char *p = buf;
-
- p += sprintf(p, "%d\n", level);
- return p - buf + 1;
-}
-
-static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR, show_power_level,
- store_power_level);
-
static ssize_t show_statistics(struct device *d,
struct device_attribute *attr, char *buf)
@@ -2698,7 +2657,6 @@ static void iwl_cancel_deferred_work(struct iwl_priv *priv)
static struct attribute *iwl_sysfs_entries[] = {
&dev_attr_flags.attr,
&dev_attr_filter_flags.attr,
- &dev_attr_power_level.attr,
&dev_attr_statistics.attr,
&dev_attr_temperature.attr,
&dev_attr_tx_power.attr,
diff --git a/drivers/net/wireless/iwlwifi/iwl-calib.c b/drivers/net/wireless/iwlwifi/iwl-calib.c
index 13180d6ee2f7790e9496b853803ad8615fbfb955..c4b565a2de942e05d5423c8712abca8eb09f89c4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-calib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-calib.c
@@ -852,7 +852,7 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv,
priv->cfg->ops->lib->update_chain_flags(priv);
data->state = IWL_CHAIN_NOISE_DONE;
- iwl_power_update_mode(priv, 0);
+ iwl_power_update_mode(priv, false);
}
EXPORT_SYMBOL(iwl_chain_noise_calibration);
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 6188c54113b08c8c7efccb17abd2a74dd313ebff..68d7719071f7e1c5366e6f9f1c4e30006d06092e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -2313,15 +2313,22 @@ struct iwl_spectrum_notification {
* PM allow:
* bit 0 - '0' Driver not allow power management
* '1' Driver allow PM (use rest of parameters)
+ *
* uCode send sleep notifications:
* bit 1 - '0' Don't send sleep notification
* '1' send sleep notification (SEND_PM_NOTIFICATION)
+ *
* Sleep over DTIM
* bit 2 - '0' PM have to walk up every DTIM
* '1' PM could sleep over DTIM till listen Interval.
+ *
* PCI power managed
* bit 3 - '0' (PCI_CFG_LINK_CTRL & 0x1)
* '1' !(PCI_CFG_LINK_CTRL & 0x1)
+ *
+ * Fast PD
+ * bit 4 - '1' Put radio to sleep when receiving frame for others
+ *
* Force sleep Modes
* bit 31/30- '00' use both mac/xtal sleeps
* '01' force Mac sleep
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 36c6e16285de160534b3e88561ee61b1f2d197c7..af735128333a497a8db25b4979304fed31bf4be5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1568,7 +1568,8 @@ int iwl_setup_mac(struct iwl_priv *priv)
IEEE80211_HW_NOISE_DBM |
IEEE80211_HW_AMPDU_AGGREGATION |
IEEE80211_HW_SPECTRUM_MGMT |
- IEEE80211_HW_SUPPORTS_PS;
+ IEEE80211_HW_SUPPORTS_PS |
+ IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
hw->wiphy->interface_modes =
BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC);
@@ -1663,8 +1664,6 @@ int iwl_init_drv(struct iwl_priv *priv)
priv->qos_data.qos_cap.val = 0;
priv->rates_mask = IWL_RATES_MASK;
- /* If power management is turned on, default to CAM mode */
- priv->power_mode = IWL_POWER_MODE_CAM;
priv->tx_power_user_lmt = IWL_TX_POWER_TARGET_POWER_MAX;
ret = iwl_init_channel_map(priv);
@@ -2551,7 +2550,6 @@ void iwl_bss_info_changed(struct ieee80211_hw *hw,
if (bss_conf->assoc) {
priv->assoc_id = bss_conf->aid;
priv->beacon_int = bss_conf->beacon_int;
- priv->power_data.dtim_period = bss_conf->dtim_period;
priv->timestamp = bss_conf->timestamp;
priv->assoc_capability = bss_conf->assoc_capability;
@@ -2801,13 +2799,10 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
iwl_set_rate(priv);
}
- if (changed & IEEE80211_CONF_CHANGE_PS &&
- priv->iw_mode == NL80211_IFTYPE_STATION) {
- priv->power_data.power_disabled =
- !(conf->flags & IEEE80211_CONF_PS);
- ret = iwl_power_update_mode(priv, 0);
+ if (changed & IEEE80211_CONF_CHANGE_PS) {
+ ret = iwl_power_update_mode(priv, false);
if (ret)
- IWL_DEBUG_MAC80211(priv, "Error setting power level\n");
+ IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n");
}
if (changed & IEEE80211_CONF_CHANGE_POWER) {
diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h
index 82befb7ce997a8906d2c1144b73339db0c1ecb48..723f38a023ced119e861d7add8cd7e74c571dc83 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debug.h
+++ b/drivers/net/wireless/iwlwifi/iwl-debug.h
@@ -88,6 +88,8 @@ struct iwl_debugfs {
struct dentry *file_led;
#endif
struct dentry *file_disable_ht40;
+ struct dentry *file_sleep_level_override;
+ struct dentry *file_current_sleep_command;
} dbgfs_data_files;
struct dir_rf_files {
struct dentry *file_disable_sensitivity;
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 7b578d41101f16c3c7ab39f56b0539b6e3a6b30d..f68fb4711da215b8c6af4fa4518b4cc15e8e8782 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -776,6 +776,83 @@ static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
return ret;
}
+static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = file->private_data;
+ char buf[8];
+ int buf_size;
+ int value;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+
+ if (sscanf(buf, "%d", &value) != 1)
+ return -EINVAL;
+
+ /*
+ * Our users expect 0 to be "CAM", but 0 isn't actually
+ * valid here. However, let's not confuse them and present
+ * IWL_POWER_INDEX_1 as "1", not "0".
+ */
+ if (value > 0)
+ value -= 1;
+
+ if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
+ return -EINVAL;
+
+ priv->power_data.debug_sleep_level_override = value;
+
+ iwl_power_update_mode(priv, false);
+
+ return count;
+}
+
+static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+ char buf[10];
+ int pos, value;
+ const size_t bufsz = sizeof(buf);
+
+ /* see the write function */
+ value = priv->power_data.debug_sleep_level_override;
+ if (value >= 0)
+ value += 1;
+
+ pos = scnprintf(buf, bufsz, "%d\n", value);
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+ char buf[200];
+ int pos = 0, i;
+ const size_t bufsz = sizeof(buf);
+ struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
+
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "flags: %#.2x\n", le16_to_cpu(cmd->flags));
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "RX/TX timeout: %d/%d usec\n",
+ le32_to_cpu(cmd->rx_data_timeout),
+ le32_to_cpu(cmd->tx_data_timeout));
+ for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "sleep_interval[%d]: %d\n", i,
+ le32_to_cpu(cmd->sleep_interval[i]));
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
DEBUGFS_READ_WRITE_FILE_OPS(sram);
DEBUGFS_WRITE_FILE_OPS(log_event);
DEBUGFS_READ_FILE_OPS(nvm);
@@ -789,6 +866,8 @@ DEBUGFS_READ_FILE_OPS(led);
#endif
DEBUGFS_READ_FILE_OPS(thermal_throttling);
DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
+DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
+DEBUGFS_READ_FILE_OPS(current_sleep_command);
static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
char __user *user_buf,
@@ -1533,6 +1612,8 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
#ifdef CONFIG_IWLWIFI_LEDS
DEBUGFS_ADD_FILE(led, data);
#endif
+ DEBUGFS_ADD_FILE(sleep_level_override, data);
+ DEBUGFS_ADD_FILE(current_sleep_command, data);
DEBUGFS_ADD_FILE(thermal_throttling, data);
DEBUGFS_ADD_FILE(disable_ht40, data);
DEBUGFS_ADD_FILE(rx_statistics, debug);
@@ -1572,6 +1653,8 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
if (!priv->dbgfs)
return;
+ DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sleep_level_override);
+ DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_current_sleep_command);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_nvm);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 1aa2ae6d075621e75fccfca845ff2732533b7fe8..b96c3c9e92a9ff5b9a5e81cc0c59b49be5f13793 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1119,7 +1119,6 @@ struct iwl_priv {
/* context information */
u16 rates_mask;
- u32 power_mode;
u8 bssid[ETH_ALEN];
u16 rts_threshold;
u8 mac_addr[ETH_ALEN];
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.c b/drivers/net/wireless/iwlwifi/iwl-power.c
index 27ad59d8643e1aa9e602929d3bc2428691a4f4a9..0b16841f45f475ab2f112fd7b3c8df0c51cfbcf1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.c
+++ b/drivers/net/wireless/iwlwifi/iwl-power.c
@@ -42,20 +42,35 @@
#include "iwl-power.h"
/*
- * Setting power level allow the card to go to sleep when not busy.
+ * Setting power level allows the card to go to sleep when not busy.
*
- * The power level is set to INDEX_1 (the least deep state) by
- * default, and will, in the future, be the deepest state unless
- * otherwise required by pm_qos network latency requirements.
- *
- * Using INDEX_1 without pm_qos is ok because mac80211 will disable
- * PS when even checking every beacon for the TIM bit would exceed
- * the required latency.
+ * We calculate a sleep command based on the required latency, which
+ * we get from mac80211. In order to handle thermal throttling, we can
+ * also use pre-defined power levels.
*/
-#define IWL_POWER_RANGE_0_MAX (2)
-#define IWL_POWER_RANGE_1_MAX (10)
+/*
+ * For now, keep using power level 1 instead of automatically
+ * adjusting ...
+ */
+bool no_sleep_autoadjust = true;
+module_param(no_sleep_autoadjust, bool, S_IRUGO);
+MODULE_PARM_DESC(no_sleep_autoadjust,
+ "don't automatically adjust sleep level "
+ "according to maximum network latency");
+/*
+ * This defines the old power levels. They are still used by default
+ * (level 1) and for thermal throttle (levels 3 through 5)
+ */
+
+struct iwl_power_vec_entry {
+ struct iwl_powertable_cmd cmd;
+ u8 no_dtim;
+};
+
+#define IWL_DTIM_RANGE_0_MAX 2
+#define IWL_DTIM_RANGE_1_MAX 10
#define NOSLP cpu_to_le16(0), 0, 0
#define SLP IWL_POWER_DRIVER_ALLOW_SLEEP_MSK, 0, 0
@@ -67,9 +82,8 @@
cpu_to_le32(X3), \
cpu_to_le32(X4)}
/* default power management (not Tx power) table values */
-/* for DTIM period 0 through IWL_POWER_RANGE_0_MAX */
+/* for DTIM period 0 through IWL_DTIM_RANGE_0_MAX */
static const struct iwl_power_vec_entry range_0[IWL_POWER_NUM] = {
- {{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 2, 2, 0xFF)}, 0},
{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(1, 2, 2, 2, 0xFF)}, 0},
{{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 2, 2, 2, 0xFF)}, 0},
@@ -78,9 +92,8 @@ static const struct iwl_power_vec_entry range_0[IWL_POWER_NUM] = {
};
-/* for DTIM period IWL_POWER_RANGE_0_MAX + 1 through IWL_POWER_RANGE_1_MAX */
+/* for DTIM period IWL_DTIM_RANGE_0_MAX + 1 through IWL_DTIM_RANGE_1_MAX */
static const struct iwl_power_vec_entry range_1[IWL_POWER_NUM] = {
- {{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 4)}, 0},
{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(1, 2, 3, 4, 7)}, 0},
{{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 4, 6, 7, 9)}, 0},
@@ -88,9 +101,8 @@ static const struct iwl_power_vec_entry range_1[IWL_POWER_NUM] = {
{{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(2, 4, 7, 10, 10)}, 2}
};
-/* for DTIM period > IWL_POWER_RANGE_1_MAX */
+/* for DTIM period > IWL_DTIM_RANGE_1_MAX */
static const struct iwl_power_vec_entry range_2[IWL_POWER_NUM] = {
- {{NOSLP, SLP_TOUT(0), SLP_TOUT(0), SLP_VEC(0, 0, 0, 0, 0)}, 0},
{{SLP, SLP_TOUT(200), SLP_TOUT(500), SLP_VEC(1, 2, 3, 4, 0xFF)}, 0},
{{SLP, SLP_TOUT(200), SLP_TOUT(300), SLP_VEC(2, 4, 6, 7, 0xFF)}, 0},
{{SLP, SLP_TOUT(50), SLP_TOUT(100), SLP_VEC(2, 7, 9, 9, 0xFF)}, 0},
@@ -98,6 +110,56 @@ static const struct iwl_power_vec_entry range_2[IWL_POWER_NUM] = {
{{SLP, SLP_TOUT(25), SLP_TOUT(25), SLP_VEC(4, 7, 10, 10, 0xFF)}, 0}
};
+static void iwl_static_sleep_cmd(struct iwl_priv *priv,
+ struct iwl_powertable_cmd *cmd,
+ enum iwl_power_level lvl, int period)
+{
+ const struct iwl_power_vec_entry *table;
+ int max_sleep, i;
+ bool skip;
+
+ table = range_2;
+ if (period < IWL_DTIM_RANGE_1_MAX)
+ table = range_1;
+ if (period < IWL_DTIM_RANGE_0_MAX)
+ table = range_0;
+
+ BUG_ON(lvl < 0 || lvl >= IWL_POWER_NUM);
+
+ *cmd = table[lvl].cmd;
+
+ if (period == 0) {
+ skip = false;
+ period = 1;
+ } else {
+ skip = !!table[lvl].no_dtim;
+ }
+
+ if (skip) {
+ __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
+ max_sleep = le32_to_cpu(slp_itrvl);
+ if (max_sleep == 0xFF)
+ max_sleep = period * (skip + 1);
+ else if (max_sleep > period)
+ max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
+ cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
+ } else {
+ max_sleep = period;
+ cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
+ }
+
+ for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
+ if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
+ cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
+
+ if (priv->power_data.pci_pm)
+ cmd->flags |= IWL_POWER_PCI_PM_MSK;
+ else
+ cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
+
+ IWL_DEBUG_POWER(priv, "Sleep command for index %d\n", lvl + 1);
+}
+
/* default Thermal Throttling transaction table
* Current state | Throttling Down | Throttling Up
*=============================================================================
@@ -138,98 +200,44 @@ static const struct iwl_tt_restriction restriction_range[IWL_TI_STATE_MAX] = {
{IWL_ANT_OK_NONE, IWL_ANT_OK_NONE, false }
};
-/* set card power command */
-static int iwl_set_power(struct iwl_priv *priv, void *cmd)
-{
- return iwl_send_cmd_pdu(priv, POWER_TABLE_CMD,
- sizeof(struct iwl_powertable_cmd), cmd);
-}
-/* initialize to default */
-static void iwl_power_init_handle(struct iwl_priv *priv)
+static void iwl_power_sleep_cam_cmd(struct iwl_priv *priv,
+ struct iwl_powertable_cmd *cmd)
{
- struct iwl_power_mgr *pow_data;
- int size = sizeof(struct iwl_power_vec_entry) * IWL_POWER_NUM;
- struct iwl_powertable_cmd *cmd;
- int i;
- u16 lctl;
-
- IWL_DEBUG_POWER(priv, "Initialize power \n");
-
- pow_data = &priv->power_data;
-
- memset(pow_data, 0, sizeof(*pow_data));
-
- memcpy(&pow_data->pwr_range_0[0], &range_0[0], size);
- memcpy(&pow_data->pwr_range_1[0], &range_1[0], size);
- memcpy(&pow_data->pwr_range_2[0], &range_2[0], size);
-
- lctl = iwl_pcie_link_ctl(priv);
+ memset(cmd, 0, sizeof(*cmd));
- IWL_DEBUG_POWER(priv, "adjust power command flags\n");
+ if (priv->power_data.pci_pm)
+ cmd->flags |= IWL_POWER_PCI_PM_MSK;
- for (i = 0; i < IWL_POWER_NUM; i++) {
- cmd = &pow_data->pwr_range_0[i].cmd;
-
- if (lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN)
- cmd->flags &= ~IWL_POWER_PCI_PM_MSK;
- else
- cmd->flags |= IWL_POWER_PCI_PM_MSK;
- }
+ IWL_DEBUG_POWER(priv, "Sleep command for CAM\n");
}
-/* adjust power command according to DTIM period and power level*/
-static int iwl_update_power_cmd(struct iwl_priv *priv,
- struct iwl_powertable_cmd *cmd, u16 mode)
+static void iwl_power_fill_sleep_cmd(struct iwl_priv *priv,
+ struct iwl_powertable_cmd *cmd,
+ int dynps_ms, int wakeup_period)
{
- struct iwl_power_vec_entry *range;
- struct iwl_power_mgr *pow_data;
int i;
- u32 max_sleep = 0;
- u8 period;
- bool skip;
- if (mode > IWL_POWER_INDEX_5) {
- IWL_DEBUG_POWER(priv, "Error invalid power mode \n");
- return -EINVAL;
- }
+ memset(cmd, 0, sizeof(*cmd));
- pow_data = &priv->power_data;
+ cmd->flags = IWL_POWER_DRIVER_ALLOW_SLEEP_MSK |
+ IWL_POWER_FAST_PD; /* no use seeing frames for others */
- if (pow_data->dtim_period <= IWL_POWER_RANGE_0_MAX)
- range = &pow_data->pwr_range_0[0];
- else if (pow_data->dtim_period <= IWL_POWER_RANGE_1_MAX)
- range = &pow_data->pwr_range_1[0];
- else
- range = &pow_data->pwr_range_2[0];
+ if (priv->power_data.pci_pm)
+ cmd->flags |= IWL_POWER_PCI_PM_MSK;
- period = pow_data->dtim_period;
- memcpy(cmd, &range[mode].cmd, sizeof(struct iwl_powertable_cmd));
-
- if (period == 0) {
- period = 1;
- skip = false;
- } else {
- skip = !!range[mode].no_dtim;
- }
-
- if (skip) {
- __le32 slp_itrvl = cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1];
- max_sleep = le32_to_cpu(slp_itrvl);
- if (max_sleep == 0xFF)
- max_sleep = period * (skip + 1);
- else if (max_sleep > period)
- max_sleep = (le32_to_cpu(slp_itrvl) / period) * period;
- cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
- } else {
- max_sleep = period;
- cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
- }
+ cmd->rx_data_timeout = cpu_to_le32(1000 * dynps_ms);
+ cmd->tx_data_timeout = cpu_to_le32(1000 * dynps_ms);
for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
- if (le32_to_cpu(cmd->sleep_interval[i]) > max_sleep)
- cmd->sleep_interval[i] = cpu_to_le32(max_sleep);
+ cmd->sleep_interval[i] = cpu_to_le32(wakeup_period);
+
+ IWL_DEBUG_POWER(priv, "Automatic sleep command\n");
+}
+static int iwl_set_power(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd)
+{
+ IWL_DEBUG_POWER(priv, "Sending power/sleep command\n");
IWL_DEBUG_POWER(priv, "Flags value = 0x%08X\n", cmd->flags);
IWL_DEBUG_POWER(priv, "Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
IWL_DEBUG_POWER(priv, "Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
@@ -240,50 +248,54 @@ static int iwl_update_power_cmd(struct iwl_priv *priv,
le32_to_cpu(cmd->sleep_interval[3]),
le32_to_cpu(cmd->sleep_interval[4]));
- return 0;
+ return iwl_send_cmd_pdu(priv, POWER_TABLE_CMD,
+ sizeof(struct iwl_powertable_cmd), cmd);
}
-/*
- * compute the final power mode index
- */
int iwl_power_update_mode(struct iwl_priv *priv, bool force)
{
- struct iwl_power_mgr *setting = &(priv->power_data);
int ret = 0;
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
- u16 uninitialized_var(final_mode);
+ bool enabled = (priv->iw_mode == NL80211_IFTYPE_STATION) &&
+ (priv->hw->conf.flags & IEEE80211_CONF_PS);
bool update_chains;
+ struct iwl_powertable_cmd cmd;
+ int dtimper;
/* Don't update the RX chain when chain noise calibration is running */
update_chains = priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE ||
priv->chain_noise_data.state == IWL_CHAIN_NOISE_ALIVE;
- final_mode = priv->power_data.user_power_setting;
-
- if (setting->power_disabled)
- final_mode = IWL_POWER_MODE_CAM;
+ if (priv->vif)
+ dtimper = priv->vif->bss_conf.dtim_period;
+ else
+ dtimper = 1;
+
+ /* TT power setting overwrites everything */
+ if (tt->state >= IWL_TI_1)
+ iwl_static_sleep_cmd(priv, &cmd, tt->tt_power_mode, dtimper);
+ else if (!enabled)
+ iwl_power_sleep_cam_cmd(priv, &cmd);
+ else if (priv->power_data.debug_sleep_level_override >= 0)
+ iwl_static_sleep_cmd(priv, &cmd,
+ priv->power_data.debug_sleep_level_override,
+ dtimper);
+ else if (no_sleep_autoadjust)
+ iwl_static_sleep_cmd(priv, &cmd, IWL_POWER_INDEX_1, dtimper);
+ else
+ iwl_power_fill_sleep_cmd(priv, &cmd,
+ priv->hw->conf.dynamic_ps_timeout,
+ priv->hw->conf.max_sleep_period);
- if (tt->state >= IWL_TI_1) {
- /* TT power setting overwrite user & system power setting */
- final_mode = tt->tt_power_mode;
- }
if (iwl_is_ready_rf(priv) &&
- ((setting->power_mode != final_mode) || force)) {
- struct iwl_powertable_cmd cmd;
-
- if (final_mode != IWL_POWER_MODE_CAM)
+ (memcmp(&priv->power_data.sleep_cmd, &cmd, sizeof(cmd)) || force)) {
+ if (cmd.flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK)
set_bit(STATUS_POWER_PMI, &priv->status);
- iwl_update_power_cmd(priv, &cmd, final_mode);
- cmd.keep_alive_beacons = 0;
-
- if (final_mode == IWL_POWER_INDEX_5)
- cmd.flags |= IWL_POWER_FAST_PD;
-
ret = iwl_set_power(priv, &cmd);
if (!ret) {
- if (final_mode == IWL_POWER_MODE_CAM)
+ if (!(cmd.flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK))
clear_bit(STATUS_POWER_PMI, &priv->status);
if (priv->cfg->ops->lib->update_chain_flags &&
@@ -294,7 +306,7 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force)
"Cannot update the power, chain noise "
"calibration running: %d\n",
priv->chain_noise_data.state);
- setting->power_mode = final_mode;
+ memcpy(&priv->power_data.sleep_cmd, &cmd, sizeof(cmd));
} else
IWL_ERR(priv, "set power fail, ret = %d", ret);
}
@@ -303,18 +315,6 @@ int iwl_power_update_mode(struct iwl_priv *priv, bool force)
}
EXPORT_SYMBOL(iwl_power_update_mode);
-/* set user_power_setting */
-int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode)
-{
- if (mode >= IWL_POWER_NUM)
- return -EINVAL;
-
- priv->power_data.user_power_setting = mode;
-
- return iwl_power_update_mode(priv, 0);
-}
-EXPORT_SYMBOL(iwl_power_set_user_mode);
-
bool iwl_ht_enabled(struct iwl_priv *priv)
{
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
@@ -349,7 +349,6 @@ enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv)
restriction = tt->restriction + tt->state;
return restriction->rx_stream;
}
-EXPORT_SYMBOL(iwl_rx_ant_restriction);
#define CT_KILL_EXIT_DURATION (5) /* 5 seconds duration */
@@ -429,7 +428,6 @@ static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
{
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
enum iwl_tt_state old_state;
- struct iwl_power_mgr *setting = &priv->power_data;
#ifdef CONFIG_IWLWIFI_DEBUG
if ((tt->tt_previous_temp) &&
@@ -456,24 +454,13 @@ static void iwl_legacy_tt_handler(struct iwl_priv *priv, s32 temp)
tt->tt_previous_temp = temp;
#endif
if (tt->state != old_state) {
- if (old_state == IWL_TI_0) {
- tt->sys_power_mode = setting->power_mode;
- IWL_DEBUG_POWER(priv, "current power mode: %u\n",
- setting->power_mode);
- }
switch (tt->state) {
case IWL_TI_0:
- /* when system ready to go back to IWL_TI_0 state
- * using system power mode instead of TT power mode
- * revert back to the orginal power mode which was saved
- * before enter Thermal Throttling state
- * update priv->power_data.user_power_setting to the
- * required power mode to make sure
- * iwl_power_update_mode() will update power correctly.
+ /*
+ * When the system is ready to go back to IWL_TI_0
+ * we only have to call iwl_power_update_mode() to
+ * do so.
*/
- priv->power_data.user_power_setting =
- tt->sys_power_mode;
- tt->tt_power_mode = tt->sys_power_mode;
break;
case IWL_TI_1:
tt->tt_power_mode = IWL_POWER_INDEX_3;
@@ -576,13 +563,8 @@ static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp)
}
if (changed) {
struct iwl_rxon_cmd *rxon = &priv->staging_rxon;
- struct iwl_power_mgr *setting = &priv->power_data;
if (tt->state >= IWL_TI_1) {
- /* if switching from IWL_TI_0 to other TT state
- * save previous power setting in tt->sys_power_mode */
- if (old_state == IWL_TI_0)
- tt->sys_power_mode = setting->power_mode;
/* force PI = IWL_POWER_INDEX_5 in the case of TI > 0 */
tt->tt_power_mode = IWL_POWER_INDEX_5;
if (!iwl_ht_enabled(priv))
@@ -599,17 +581,11 @@ static void iwl_advance_tt_handler(struct iwl_priv *priv, s32 temp)
}
} else {
- /* restore system power setting */
- /* the previous power mode was saved in
- * tt->sys_power_mode when system move into
- * Thermal Throttling state
- * set power_data.user_power_setting to the previous
- * system power mode to make sure power will get
- * updated correctly
+ /*
+ * restore system power setting -- it will be
+ * recalculated automatically.
*/
- priv->power_data.user_power_setting =
- tt->sys_power_mode;
- tt->tt_power_mode = tt->sys_power_mode;
+
/* check HT capability and set
* according to the system HT capability
* in case get disabled before */
@@ -761,7 +737,6 @@ EXPORT_SYMBOL(iwl_tt_handler);
void iwl_tt_initialize(struct iwl_priv *priv)
{
struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
- struct iwl_power_mgr *setting = &priv->power_data;
int size = sizeof(struct iwl_tt_trans) * (IWL_TI_STATE_MAX - 1);
struct iwl_tt_trans *transaction;
@@ -770,8 +745,6 @@ void iwl_tt_initialize(struct iwl_priv *priv)
memset(tt, 0, sizeof(struct iwl_tt_mgmt));
tt->state = IWL_TI_0;
- tt->sys_power_mode = setting->power_mode;
- tt->tt_power_mode = tt->sys_power_mode;
init_timer(&priv->thermal_throttle.ct_kill_exit_tm);
priv->thermal_throttle.ct_kill_exit_tm.data = (unsigned long)priv;
priv->thermal_throttle.ct_kill_exit_tm.function = iwl_tt_check_exit_ct_kill;
@@ -849,9 +822,13 @@ EXPORT_SYMBOL(iwl_tt_exit);
/* initialize to default */
void iwl_power_initialize(struct iwl_priv *priv)
{
- iwl_power_init_handle(priv);
- priv->power_data.user_power_setting = IWL_POWER_INDEX_1;
- /* default to disabled until mac80211 says otherwise */
- priv->power_data.power_disabled = 1;
+ u16 lctl = iwl_pcie_link_ctl(priv);
+
+ priv->power_data.pci_pm = !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN);
+
+ priv->power_data.debug_sleep_level_override = -1;
+
+ memset(&priv->power_data.sleep_cmd, 0,
+ sizeof(priv->power_data.sleep_cmd));
}
EXPORT_SYMBOL(iwl_power_initialize);
diff --git a/drivers/net/wireless/iwlwifi/iwl-power.h b/drivers/net/wireless/iwlwifi/iwl-power.h
index 15e3eabd2e849d55a4d17f8e4c534e9776372376..df6f6a49712b4fd11d2313ad7f8977af6d9e571c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-power.h
+++ b/drivers/net/wireless/iwlwifi/iwl-power.h
@@ -28,11 +28,8 @@
#ifndef __iwl_power_setting_h__
#define __iwl_power_setting_h__
-#include <net/mac80211.h>
#include "iwl-commands.h"
-struct iwl_priv;
-
#define IWL_ABSOLUTE_ZERO 0
#define IWL_ABSOLUTE_MAX 0xFFFFFFFF
#define IWL_TT_INCREASE_MARGIN 5
@@ -93,8 +90,6 @@ struct iwl_tt_trans {
* when thermal throttling state != IWL_TI_0
* the tt_power_mode should set to different
* power mode based on the current tt state
- * @sys_power_mode: previous system power mode
- * before transition into TT state
* @tt_previous_temperature: last measured temperature
* @iwl_tt_restriction: ptr to restriction tbl, used by advance
* thermal throttling to determine how many tx/rx streams
@@ -108,7 +103,6 @@ struct iwl_tt_mgmt {
enum iwl_tt_state state;
bool advanced_tt;
u8 tt_power_mode;
- u8 sys_power_mode;
bool ct_kill_toggle;
#ifdef CONFIG_IWLWIFI_DEBUG
s32 tt_previous_temp;
@@ -118,8 +112,7 @@ struct iwl_tt_mgmt {
struct timer_list ct_kill_exit_tm;
};
-enum {
- IWL_POWER_MODE_CAM, /* Continuously Aware Mode, always on */
+enum iwl_power_level {
IWL_POWER_INDEX_1,
IWL_POWER_INDEX_2,
IWL_POWER_INDEX_3,
@@ -128,26 +121,13 @@ enum {
IWL_POWER_NUM
};
-/* Power management (not Tx power) structures */
-
-struct iwl_power_vec_entry {
- struct iwl_powertable_cmd cmd;
- u8 no_dtim;
-};
-
struct iwl_power_mgr {
- struct iwl_power_vec_entry pwr_range_0[IWL_POWER_NUM];
- struct iwl_power_vec_entry pwr_range_1[IWL_POWER_NUM];
- struct iwl_power_vec_entry pwr_range_2[IWL_POWER_NUM];
- u32 dtim_period;
- /* final power level that used to calculate final power command */
- u8 power_mode;
- u8 user_power_setting; /* set by user through sysfs */
- u8 power_disabled; /* set by mac80211's CONF_PS */
+ struct iwl_powertable_cmd sleep_cmd;
+ int debug_sleep_level_override;
+ bool pci_pm;
};
int iwl_power_update_mode(struct iwl_priv *priv, bool force);
-int iwl_power_set_user_mode(struct iwl_priv *priv, u16 mode);
bool iwl_ht_enabled(struct iwl_priv *priv);
enum iwl_antenna_ok iwl_tx_ant_restriction(struct iwl_priv *priv);
enum iwl_antenna_ok iwl_rx_ant_restriction(struct iwl_priv *priv);
@@ -158,4 +138,6 @@ void iwl_tt_initialize(struct iwl_priv *priv);
void iwl_tt_exit(struct iwl_priv *priv);
void iwl_power_initialize(struct iwl_priv *priv);
+extern bool no_sleep_autoadjust;
+
#endif /* __iwl_power_setting_h__ */
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index e5fa672e8390a97c8c8e780f4806e759e6c01e5e..e617411d0c5e4a7b439b426d73a6470cbf7c073c 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -3554,65 +3554,6 @@ static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
store_retry_rate);
-static ssize_t store_power_level(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- int ret;
- unsigned long mode;
-
-
- mutex_lock(&priv->mutex);
-
- ret = strict_strtoul(buf, 10, &mode);
- if (ret)
- goto out;
-
- ret = iwl_power_set_user_mode(priv, mode);
- if (ret) {
- IWL_DEBUG_MAC80211(priv, "failed setting power mode.\n");
- goto out;
- }
- ret = count;
-
- out:
- mutex_unlock(&priv->mutex);
- return ret;
-}
-
-static ssize_t show_power_level(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- int level = priv->power_data.power_mode;
- char *p = buf;
-
- p += sprintf(p, "%d\n", level);
- return p - buf + 1;
-}
-
-static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR,
- show_power_level, store_power_level);
-
-#define MAX_WX_STRING 80
-
-/* Values are in microsecond */
-static const s32 timeout_duration[] = {
- 350000,
- 250000,
- 75000,
- 37000,
- 25000,
-};
-static const s32 period_duration[] = {
- 400000,
- 700000,
- 1000000,
- 1000000,
- 1000000
-};
-
static ssize_t show_channels(struct device *d,
struct device_attribute *attr, char *buf)
{
@@ -3789,7 +3730,6 @@ static struct attribute *iwl3945_sysfs_entries[] = {
#ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
&dev_attr_measurement.attr,
#endif
- &dev_attr_power_level.attr,
&dev_attr_retry_rate.attr,
&dev_attr_statistics.attr,
&dev_attr_status.attr,
@@ -3854,8 +3794,6 @@ static int iwl3945_init_drv(struct iwl_priv *priv)
priv->qos_data.qos_cap.val = 0;
priv->rates_mask = IWL_RATES_MASK;
- /* If power management is turned on, default to CAM mode */
- priv->power_mode = IWL_POWER_MODE_CAM;
priv->tx_power_user_lmt = IWL_DEFAULT_TX_POWER;
if (eeprom->version < EEPROM_3945_EEPROM_VERSION) {
@@ -3902,7 +3840,9 @@ static int iwl3945_setup_mac(struct iwl_priv *priv)
/* Tell mac80211 our characteristics */
hw->flags = IEEE80211_HW_SIGNAL_DBM |
IEEE80211_HW_NOISE_DBM |
- IEEE80211_HW_SPECTRUM_MGMT;
+ IEEE80211_HW_SPECTRUM_MGMT |
+ IEEE80211_HW_SUPPORTS_PS |
+ IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
hw->wiphy->interface_modes =
BIT(NL80211_IFTYPE_STATION) |