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-rw-r--r--drivers/net/wireless/iwlegacy/iwl-power.c165
1 files changed, 0 insertions, 165 deletions
diff --git a/drivers/net/wireless/iwlegacy/iwl-power.c b/drivers/net/wireless/iwlegacy/iwl-power.c
deleted file mode 100644
index 903ef0d6d6c..00000000000
--- a/drivers/net/wireless/iwlegacy/iwl-power.c
+++ /dev/null
@@ -1,165 +0,0 @@
1/******************************************************************************
2 *
3 * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
4 *
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * more details.
16 *
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
20 *
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
23 *
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *****************************************************************************/
28
29
30#include <linux/kernel.h>
31#include <linux/module.h>
32#include <linux/slab.h>
33#include <linux/init.h>
34
35#include <net/mac80211.h>
36
37#include "iwl-eeprom.h"
38#include "iwl-dev.h"
39#include "iwl-core.h"
40#include "iwl-io.h"
41#include "iwl-commands.h"
42#include "iwl-debug.h"
43#include "iwl-power.h"
44
45/*
46 * Setting power level allows the card to go to sleep when not busy.
47 *
48 * We calculate a sleep command based on the required latency, which
49 * we get from mac80211. In order to handle thermal throttling, we can
50 * also use pre-defined power levels.
51 */
52
53/*
54 * This defines the old power levels. They are still used by default
55 * (level 1) and for thermal throttle (levels 3 through 5)
56 */
57
58struct iwl_power_vec_entry {
59 struct iwl_powertable_cmd cmd;
60 u8 no_dtim; /* number of skip dtim */
61};
62
63static void iwl_legacy_power_sleep_cam_cmd(struct iwl_priv *priv,
64 struct iwl_powertable_cmd *cmd)
65{
66 memset(cmd, 0, sizeof(*cmd));
67
68 if (priv->power_data.pci_pm)
69 cmd->flags |= IWL_POWER_PCI_PM_MSK;
70
71 IWL_DEBUG_POWER(priv, "Sleep command for CAM\n");
72}
73
74static int
75iwl_legacy_set_power(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd)
76{
77 IWL_DEBUG_POWER(priv, "Sending power/sleep command\n");
78 IWL_DEBUG_POWER(priv, "Flags value = 0x%08X\n", cmd->flags);
79 IWL_DEBUG_POWER(priv, "Tx timeout = %u\n",
80 le32_to_cpu(cmd->tx_data_timeout));
81 IWL_DEBUG_POWER(priv, "Rx timeout = %u\n",
82 le32_to_cpu(cmd->rx_data_timeout));
83 IWL_DEBUG_POWER(priv,
84 "Sleep interval vector = { %d , %d , %d , %d , %d }\n",
85 le32_to_cpu(cmd->sleep_interval[0]),
86 le32_to_cpu(cmd->sleep_interval[1]),
87 le32_to_cpu(cmd->sleep_interval[2]),
88 le32_to_cpu(cmd->sleep_interval[3]),
89 le32_to_cpu(cmd->sleep_interval[4]));
90
91 return iwl_legacy_send_cmd_pdu(priv, POWER_TABLE_CMD,
92 sizeof(struct iwl_powertable_cmd), cmd);
93}
94
95int
96iwl_legacy_power_set_mode(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd,
97 bool force)
98{
99 int ret;
100 bool update_chains;
101
102 lockdep_assert_held(&priv->mutex);
103
104 /* Don't update the RX chain when chain noise calibration is running */
105 update_chains = priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE ||
106 priv->chain_noise_data.state == IWL_CHAIN_NOISE_ALIVE;
107
108 if (!memcmp(&priv->power_data.sleep_cmd, cmd, sizeof(*cmd)) && !force)
109 return 0;
110
111 if (!iwl_legacy_is_ready_rf(priv))
112 return -EIO;
113
114 /* scan complete use sleep_power_next, need to be updated */
115 memcpy(&priv->power_data.sleep_cmd_next, cmd, sizeof(*cmd));
116 if (test_bit(STATUS_SCANNING, &priv->status) && !force) {
117 IWL_DEBUG_INFO(priv, "Defer power set mode while scanning\n");
118 return 0;
119 }
120
121 if (cmd->flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK)
122 set_bit(STATUS_POWER_PMI, &priv->status);
123
124 ret = iwl_legacy_set_power(priv, cmd);
125 if (!ret) {
126 if (!(cmd->flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK))
127 clear_bit(STATUS_POWER_PMI, &priv->status);
128
129 if (priv->cfg->ops->lib->update_chain_flags && update_chains)
130 priv->cfg->ops->lib->update_chain_flags(priv);
131 else if (priv->cfg->ops->lib->update_chain_flags)
132 IWL_DEBUG_POWER(priv,
133 "Cannot update the power, chain noise "
134 "calibration running: %d\n",
135 priv->chain_noise_data.state);
136
137 memcpy(&priv->power_data.sleep_cmd, cmd, sizeof(*cmd));
138 } else
139 IWL_ERR(priv, "set power fail, ret = %d", ret);
140
141 return ret;
142}
143
144int iwl_legacy_power_update_mode(struct iwl_priv *priv, bool force)
145{
146 struct iwl_powertable_cmd cmd;
147
148 iwl_legacy_power_sleep_cam_cmd(priv, &cmd);
149 return iwl_legacy_power_set_mode(priv, &cmd, force);
150}
151EXPORT_SYMBOL(iwl_legacy_power_update_mode);
152
153/* initialize to default */
154void iwl_legacy_power_initialize(struct iwl_priv *priv)
155{
156 u16 lctl = iwl_legacy_pcie_link_ctl(priv);
157
158 priv->power_data.pci_pm = !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN);
159
160 priv->power_data.debug_sleep_level_override = -1;
161
162 memset(&priv->power_data.sleep_cmd, 0,
163 sizeof(priv->power_data.sleep_cmd));
164}
165EXPORT_SYMBOL(iwl_legacy_power_initialize);
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-14 23:44:41 -0500