[PATCH] Add the power save control framework and debugfs entry
dreamfly281 at gmail.com
dreamfly281 at gmail.com
Wed Jul 3 13:01:44 EDT 2013
From: Yanbo Li <yanbol at qti.qualcomm.com>
The patch add the power save framework which will be extended for
system power control relative function, especialy for power save.
It also add the debugfs entry for manual control the BMPS for debug
Signed-off-by: Yanbo Li <yanbol at qti.qualcomm.com>
---
Makefile | 1 +
debug.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
main.c | 2 ++
pmc.c | 43 +++++++++++++++++++++++++++++++++++++++++++
pmc.h | 35 +++++++++++++++++++++++++++++++++++
wcn36xx.h | 5 +++++
6 files changed, 144 insertions(+)
create mode 100644 pmc.c
create mode 100644 pmc.h
diff --git a/Makefile b/Makefile
index 12c6d23..0cd44f9 100644
--- a/Makefile
+++ b/Makefile
@@ -10,6 +10,7 @@ ifneq ($(KERNELRELEASE),)
dxe.o \
txrx.o \
smd.o \
+ pmc.o \
debug.o
obj-m := wcn36xx.o
diff --git a/debug.c b/debug.c
index 9b606cb..edd5a02 100644
--- a/debug.c
+++ b/debug.c
@@ -23,6 +23,61 @@
#include <linux/uaccess.h>
#include "wcn36xx.h"
#include "debug.h"
+#include "pmc.h"
+
+static int wcn36xx_debugfs_open(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+static ssize_t read_file_bool_bmps(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct wcn36xx *wcn = file->private_data;
+ char buf[3];
+
+ if (wcn->pw_state == WCN36XX_BMPS)
+ buf[0] = '1';
+ else
+ buf[0] = '0';
+ buf[1] = '\n';
+ buf[2] = 0x00;
+ return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
+}
+
+static ssize_t write_file_bool_bmps(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct wcn36xx *wcn = file->private_data;
+ char buf[32];
+ int buf_size;
+
+ buf_size = min(count, (sizeof(buf)-1));
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+
+ switch (buf[0]) {
+ case 'y':
+ case 'Y':
+ case '1':
+ wcn36xx_pmc_enter_bmps_state(wcn, wcn->vif->bss_conf.sync_tsf);
+ break;
+ case 'n':
+ case 'N':
+ case '0':
+ wcn36xx_pmc_exit_bmps_state(wcn);
+ break;
+ }
+
+ return count;
+}
+
+static const struct file_operations fops_wcn36xx_bmps = {
+ .open = wcn36xx_debugfs_open,
+ .read = read_file_bool_bmps,
+ .write = write_file_bool_bmps,
+};
#define ADD_FILE_BOOL(name, mode, fop, priv_data) \
do { \
@@ -47,10 +102,13 @@ void wcn36xx_debugfs_init(struct wcn36xx *wcn)
wcn36xx_warn("Create the debugfs failed");
dfs->rootdir = NULL;
}
+ ADD_FILE_BOOL(bmps_switcher, 0600, &fops_wcn36xx_bmps, wcn);
}
void wcn36xx_debugfs_exit(struct wcn36xx *wcn)
{
struct wcn36xx_dfs_entry *dfs = &wcn->dfs;
+
+ debugfs_remove(dfs->file_bmps_switcher.dentry);
debugfs_remove(dfs->rootdir);
}
diff --git a/main.c b/main.c
index 3798744..a4b0cad 100644
--- a/main.c
+++ b/main.c
@@ -505,6 +505,8 @@ static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
struct sk_buff *skb = NULL;
u16 tim_off, tim_len;
enum wcn36xx_hal_link_state link_state;
+
+ wcn->vif = vif;
wcn->current_vif = (struct wcn36xx_vif *)vif->drv_priv;
wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x",
diff --git a/pmc.c b/pmc.c
new file mode 100644
index 0000000..a2028a3
--- /dev/null
+++ b/pmc.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
+ *
+ * Licensed under the ISC license by Qualcomm Atheros, Inc.
+ *
+ *
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "wcn36xx.h"
+
+int wcn36xx_pmu_init(struct wcn36xx *wcn)
+{
+ wcn->pw_state = WCN36XX_FULL_POWER;
+ return 0;
+}
+
+int wcn36xx_pmc_enter_bmps_state(struct wcn36xx *wcn, u64 tsf)
+{
+ /* TODO:Disable the TX queue */
+ wcn36xx_smd_enter_bmps(wcn, tsf);
+ wcn->pw_state = WCN36XX_BMPS;
+ return 0;
+}
+
+int wcn36xx_pmc_exit_bmps_state(struct wcn36xx *wcn)
+{
+ wcn36xx_smd_exit_bmps(wcn);
+ wcn->pw_state = WCN36XX_FULL_POWER;
+ /* TODO: Enable the TX queue? */
+ return 0;
+}
diff --git a/pmc.h b/pmc.h
new file mode 100644
index 0000000..a7dd0f1
--- /dev/null
+++ b/pmc.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
+ *
+ * Licensed under the ISC license by Qualcomm Atheros, Inc.
+ *
+ *
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+#ifndef _WCN36XX_PMC_H_
+#define _WCN36XX_PMC_H_
+
+struct wcn36xx;
+
+enum wcn36xx_power_state {
+ WCN36XX_FULL_POWER,
+ WCN36XX_BMPS
+};
+
+int wcn36xx_pmu_init(struct wcn36xx *wcn);
+int wcn36xx_pmc_enter_bmps_state(struct wcn36xx *wcn, u64 tbtt);
+int wcn36xx_pmc_exit_bmps_state(struct wcn36xx *wcn);
+int wcn36xx_enable_keep_alive_null_packet(struct wcn36xx *wcn);
+#endif /* _WCN36XX_PMC_H_ */
diff --git a/wcn36xx.h b/wcn36xx.h
index c1ceafb..124ec0a 100644
--- a/wcn36xx.h
+++ b/wcn36xx.h
@@ -28,6 +28,7 @@
#include "hal.h"
#include "smd.h"
#include "dxe.h"
+#include "pmc.h"
#include "debug.h"
#define DRIVER_PREFIX "wcn36xx: "
@@ -111,6 +112,7 @@ struct wcn36xx {
enum nl80211_iftype iftype;
u16 aid;
struct wcn36xx_vif *current_vif;
+ struct ieee80211_vif *vif; /* For debug get the tsf info */
u16 beacon_interval;
u8 dtim_period;
enum ani_ed_type encrypt_type;
@@ -163,6 +165,9 @@ struct wcn36xx {
struct sk_buff *tx_ack_skb;
+ /* Power management */
+ enum wcn36xx_power_state pw_state;
+
/* Debug file system entry */
struct wcn36xx_dfs_entry dfs;
};
--
1.7.9.5
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