#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
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},
};
-/* 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},
{{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},
{{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
*=============================================================================
{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));
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 &&
"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);
}
}
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;
restriction = tt->restriction + tt->state;
return restriction->rx_stream;
}
-EXPORT_SYMBOL(iwl_rx_ant_restriction);
#define CT_KILL_EXIT_DURATION (5) /* 5 seconds duration */
{
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) &&
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;
}
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))
}
} 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 */
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;
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;
/* 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);
git.openpandora.org / pandora-kernel.git / blobdiff