static void iwl_power_fill_sleep_cmd(struct iwl_priv *priv,
struct iwl_powertable_cmd *cmd,
int dynps_ms, int wakeup_period)
{
/*
* These are the original power level 3 sleep successions. The
* device may behave better with such succession and was also
* only tested with that. Just like the original sleep commands,
* also adjust the succession here to the wakeup_period below.
* The ranges are the same as for the sleep commands, 0-2, 3-9
* and >10, which is selected based on the DTIM interval for
* the sleep index but here we use the wakeup period since that
* is what we need to do for the latency requirements.
*/
static const u8 slp_succ_r0[IWL_POWER_VEC_SIZE] = { 2, 2, 2, 2, 2 };
static const u8 slp_succ_r1[IWL_POWER_VEC_SIZE] = { 2, 4, 6, 7, 9 };
static const u8 slp_succ_r2[IWL_POWER_VEC_SIZE] = { 2, 7, 9, 9, 0xFF };
const u8 *slp_succ = slp_succ_r0;
int i;
if (wakeup_period > IWL_DTIM_RANGE_0_MAX)
slp_succ = slp_succ_r1;
if (wakeup_period > IWL_DTIM_RANGE_1_MAX)
slp_succ = slp_succ_r2;
memset(cmd, 0, sizeof(*cmd));
cmd->flags = IWL_POWER_DRIVER_ALLOW_SLEEP_MSK |
IWL_POWER_FAST_PD; /* no use seeing frames for others */
if (priv->power_data.pci_pm)
cmd->flags |= IWL_POWER_PCI_PM_MSK;
if (priv->cfg->base_params->shadow_reg_enable)
cmd->flags |= IWL_POWER_SHADOW_REG_ENA;
else
cmd->flags &= ~IWL_POWER_SHADOW_REG_ENA;
if (iwl_advanced_bt_coexist(priv)) {
if (!priv->cfg->bt_params->bt_sco_disable)
cmd->flags |= IWL_POWER_BT_SCO_ENA;
else
cmd->flags &= ~IWL_POWER_BT_SCO_ENA;
}
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++)
cmd->sleep_interval[i] =
cpu_to_le32(min_t(int, slp_succ[i], wakeup_period));
IWL_DEBUG_POWER(priv, "Automatic sleep command\n");
}
/* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
static int iwl_rx_scan_complete_notif(struct iwl_priv *priv,
struct iwl_rx_cmd_buffer *rxb,
struct iwl_device_cmd *cmd)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_scancomplete_notification *scan_notif = (void *)pkt->data;
IWL_DEBUG_SCAN(priv, "Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
scan_notif->scanned_channels,
scan_notif->tsf_low,
scan_notif->tsf_high, scan_notif->status);
IWL_DEBUG_SCAN(priv, "Scan on %sGHz took %dms\n",
(priv->scan_band == IEEE80211_BAND_2GHZ) ? "2.4" : "5.2",
jiffies_to_msecs(jiffies - priv->scan_start));
/*
* When aborting, we run the scan completed background work inline
* and the background work must then do nothing. The SCAN_COMPLETE
* bit helps implement that logic and thus needs to be set before
* queueing the work. Also, since the scan abort waits for SCAN_HW
* to clear, we need to set SCAN_COMPLETE before clearing SCAN_HW
* to avoid a race there.
*/
set_bit(STATUS_SCAN_COMPLETE, &priv->status);
clear_bit(STATUS_SCAN_HW, &priv->status);
queue_work(priv->workqueue, &priv->scan_completed);
if (priv->iw_mode != NL80211_IFTYPE_ADHOC &&
iwl_advanced_bt_coexist(priv) &&
priv->bt_status != scan_notif->bt_status) {
if (scan_notif->bt_status) {
/* BT on */
if (!priv->bt_ch_announce)
priv->bt_traffic_load =
IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
/*
* otherwise, no traffic load information provided
* no changes made
*/
} else {
/* BT off */
priv->bt_traffic_load =
IWL_BT_COEX_TRAFFIC_LOAD_NONE;
}
priv->bt_status = scan_notif->bt_status;
queue_work(priv->workqueue,
&priv->bt_traffic_change_work);
}
return 0;
}
/* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
static void iwl_rx_scan_complete_notif(struct iwl_priv *priv,
struct iwl_rx_mem_buffer *rxb)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
IWL_DEBUG_SCAN(priv, "Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
scan_notif->scanned_channels,
scan_notif->tsf_low,
scan_notif->tsf_high, scan_notif->status);
/* The HW is no longer scanning */
clear_bit(STATUS_SCAN_HW, &priv->status);
IWL_DEBUG_SCAN(priv, "Scan on %sGHz took %dms\n",
(priv->scan_band == IEEE80211_BAND_2GHZ) ? "2.4" : "5.2",
jiffies_to_msecs(jiffies - priv->scan_start));
queue_work(priv->workqueue, &priv->scan_completed);
if (priv->iw_mode != NL80211_IFTYPE_ADHOC &&
iwl_advanced_bt_coexist(priv) &&
priv->bt_status != scan_notif->bt_status) {
if (scan_notif->bt_status) {
/* BT on */
if (!priv->bt_ch_announce)
priv->bt_traffic_load =
IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
/*
* otherwise, no traffic load information provided
* no changes made
*/
} else {
/* BT off */
priv->bt_traffic_load =
IWL_BT_COEX_TRAFFIC_LOAD_NONE;
}
priv->bt_status = scan_notif->bt_status;
queue_work(priv->workqueue, &priv->bt_traffic_change_work);
}
}
static int iwl_rx_scan_complete_notif(struct iwl_priv *priv,
struct iwl_rx_cmd_buffer *rxb,
struct iwl_device_cmd *cmd)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_scancomplete_notification *scan_notif = (void *)pkt->data;
IWL_DEBUG_SCAN(priv, "Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
scan_notif->scanned_channels,
scan_notif->tsf_low,
scan_notif->tsf_high, scan_notif->status);
IWL_DEBUG_SCAN(priv, "Scan on %sGHz took %dms\n",
(priv->scan_band == IEEE80211_BAND_2GHZ) ? "2.4" : "5.2",
jiffies_to_msecs(jiffies - priv->scan_start));
set_bit(STATUS_SCAN_COMPLETE, &priv->status);
clear_bit(STATUS_SCAN_HW, &priv->status);
queue_work(priv->workqueue, &priv->scan_completed);
if (priv->iw_mode != NL80211_IFTYPE_ADHOC &&
iwl_advanced_bt_coexist(priv) &&
priv->bt_status != scan_notif->bt_status) {
if (scan_notif->bt_status) {
if (!priv->bt_ch_announce)
priv->bt_traffic_load =
IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
} else {
priv->bt_traffic_load =
IWL_BT_COEX_TRAFFIC_LOAD_NONE;
}
priv->bt_status = scan_notif->bt_status;
queue_work(priv->workqueue,
&priv->bt_traffic_change_work);
}
return 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[IWL_POWER_VEC_SIZE] = { 0 };
int i;
u8 skip;
u32 slp_itrvl;
if (priv->cfg->adv_pm) {
table = apm_range_2;
if (period <= IWL_DTIM_RANGE_1_MAX)
table = apm_range_1;
if (period <= IWL_DTIM_RANGE_0_MAX)
table = apm_range_0;
} else {
table = range_2;
if (period <= IWL_DTIM_RANGE_1_MAX)
table = range_1;
if (period <= IWL_DTIM_RANGE_0_MAX)
table = range_0;
}
if (WARN_ON(lvl < 0 || lvl >= IWL_POWER_NUM))
memset(cmd, 0, sizeof(*cmd));
else
*cmd = table[lvl].cmd;
if (period == 0) {
skip = 0;
period = 1;
for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
max_sleep[i] = 1;
} else {
skip = table[lvl].no_dtim;
for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
max_sleep[i] = le32_to_cpu(cmd->sleep_interval[i]);
max_sleep[IWL_POWER_VEC_SIZE - 1] = skip + 1;
}
slp_itrvl = le32_to_cpu(cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1]);
/* figure out the listen interval based on dtim period and skip */
if (slp_itrvl == 0xFF)
cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1] =
cpu_to_le32(period * (skip + 1));
slp_itrvl = le32_to_cpu(cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1]);
if (slp_itrvl > period)
cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1] =
cpu_to_le32((slp_itrvl / period) * period);
if (skip)
cmd->flags |= IWL_POWER_SLEEP_OVER_DTIM_MSK;
else
cmd->flags &= ~IWL_POWER_SLEEP_OVER_DTIM_MSK;
if (priv->cfg->base_params->shadow_reg_enable)
cmd->flags |= IWL_POWER_SHADOW_REG_ENA;
else
cmd->flags &= ~IWL_POWER_SHADOW_REG_ENA;
if (iwl_advanced_bt_coexist(priv)) {
if (!priv->cfg->bt_params->bt_sco_disable)
cmd->flags |= IWL_POWER_BT_SCO_ENA;
else
cmd->flags &= ~IWL_POWER_BT_SCO_ENA;
}
slp_itrvl = le32_to_cpu(cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1]);
if (slp_itrvl > IWL_CONN_MAX_LISTEN_INTERVAL)
cmd->sleep_interval[IWL_POWER_VEC_SIZE - 1] =
cpu_to_le32(IWL_CONN_MAX_LISTEN_INTERVAL);
/* enforce max sleep interval */
for (i = IWL_POWER_VEC_SIZE - 1; i >= 0 ; i--) {
if (le32_to_cpu(cmd->sleep_interval[i]) >
(max_sleep[i] * period))
cmd->sleep_interval[i] =
cpu_to_le32(max_sleep[i] * period);
if (i != (IWL_POWER_VEC_SIZE - 1)) {
if (le32_to_cpu(cmd->sleep_interval[i]) >
le32_to_cpu(cmd->sleep_interval[i+1]))
cmd->sleep_interval[i] =
cmd->sleep_interval[i+1];
}
}
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, "numSkipDtim = %u, dtimPeriod = %d\n",
skip, period);
IWL_DEBUG_POWER(priv, "Sleep command for index %d\n", lvl + 1);
}
