Add a wakeup_protocols sysfs file which controls the new
rc_dev::enabled_protocols[RC_FILTER_WAKEUP], which is the mask of
protocols that are used for the wakeup filter.
A new RC driver callback change_wakeup_protocol() is called to change
the wakeup protocol mask.
Signed-off-by: James Hogan <james.hogan@xxxxxxxxxx>
Cc: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>
Cc: Antti Seppälä <a.seppala@xxxxxxxxx>
Cc: Rob Landley <rob@xxxxxxxxxxx>
Cc: linux-media@xxxxxxxxxxxxxxx
Cc: linux-doc@xxxxxxxxxxxxxxx
---
Documentation/ABI/testing/sysfs-class-rc | 23 +++++-
.../DocBook/media/v4l/remote_controllers.xml | 20 +++++-
drivers/media/rc/rc-main.c | 82 +++++++++++++---------
include/media/rc-core.h | 3 +
4 files changed, 90 insertions(+), 38 deletions(-)
diff --git a/Documentation/ABI/testing/sysfs-class-rc b/Documentation/ABI/testing/sysfs-class-rc
index c0e1d14..b65674d 100644
--- a/Documentation/ABI/testing/sysfs-class-rc
+++ b/Documentation/ABI/testing/sysfs-class-rc
@@ -61,6 +61,25 @@ Description:
an error.
This value may be reset to 0 if the current protocol is altered.
+What: /sys/class/rc/rcN/wakeup_protocols
+Date: Feb 2014
+KernelVersion: 3.15
+Contact: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>
+Description:
+ Reading this file returns a list of available protocols to use
+ for the wakeup filter, something like:
+ "rc5 rc6 nec jvc [sony]"
+ The enabled wakeup protocol is shown in [] brackets.
+ Writing "+proto" will add a protocol to the list of enabled
+ wakeup protocols.
+ Writing "-proto" will remove a protocol from the list of enabled
+ wakeup protocols.
+ Writing "proto" will use "proto" for wakeup events.
+ Writing "none" will disable wakeup.
+ Write fails with EINVAL if an invalid protocol combination or
+ unknown protocol name is used, or if wakeup is not supported by
+ the hardware.
+
What: /sys/class/rc/rcN/wakeup_filter
Date: Jan 2014
KernelVersion: 3.15
@@ -74,7 +93,7 @@ Description:
scancodes which match the filter will wake the system from e.g.
suspend to RAM or power off.
Otherwise the write will fail with an error.
- This value may be reset to 0 if the current protocol is altered.
+ This value may be reset to 0 if the wakeup protocol is altered.
What: /sys/class/rc/rcN/wakeup_filter_mask
Date: Jan 2014
@@ -89,4 +108,4 @@ Description:
scancodes which match the filter will wake the system from e.g.
suspend to RAM or power off.
Otherwise the write will fail with an error.
- This value may be reset to 0 if the current protocol is altered.
+ This value may be reset to 0 if the wakeup protocol is altered.
diff --git a/Documentation/DocBook/media/v4l/remote_controllers.xml b/Documentation/DocBook/media/v4l/remote_controllers.xml
index c440a81..5124a6c 100644
--- a/Documentation/DocBook/media/v4l/remote_controllers.xml
+++ b/Documentation/DocBook/media/v4l/remote_controllers.xml
@@ -102,6 +102,22 @@ an error.</para>
<para>This value may be reset to 0 if the current protocol is altered.</para>
</section>
+<section id="sys_class_rc_rcN_wakeup_protocols">
+<title>/sys/class/rc/rcN/wakeup_protocols</title>
+<para>Reading this file returns a list of available protocols to use for the
+wakeup filter, something like:</para>
+<para><constant>rc5 rc6 nec jvc [sony]</constant></para>
+<para>The enabled wakeup protocol is shown in [] brackets.</para>
+<para>Writing "+proto" will add a protocol to the list of enabled wakeup
+protocols.</para>
+<para>Writing "-proto" will remove a protocol from the list of enabled wakeup
+protocols.</para>
+<para>Writing "proto" will use "proto" for wakeup events.</para>
+<para>Writing "none" will disable wakeup.</para>
+<para>Write fails with EINVAL if an invalid protocol combination or unknown
+protocol name is used, or if wakeup is not supported by the hardware.</para>
+
+</section>
<section id="sys_class_rc_rcN_wakeup_filter">
<title>/sys/class/rc/rcN/wakeup_filter</title>
<para>Sets the scancode wakeup filter expected value.
@@ -112,7 +128,7 @@ to trigger a system wake event.</para>
scancodes which match the filter will wake the system from e.g.
suspend to RAM or power off.
Otherwise the write will fail with an error.</para>
-<para>This value may be reset to 0 if the current protocol is altered.</para>
+<para>This value may be reset to 0 if the wakeup protocol is altered.</para>
</section>
<section id="sys_class_rc_rcN_wakeup_filter_mask">
@@ -125,7 +141,7 @@ expected value to trigger a system wake event.</para>
scancodes which match the filter will wake the system from e.g.
suspend to RAM or power off.
Otherwise the write will fail with an error.</para>
-<para>This value may be reset to 0 if the current protocol is altered.</para>
+<para>This value may be reset to 0 if the wakeup protocol is altered.</para>
</section>
</section>
diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c
index 309d791..e6e3ec7 100644
--- a/drivers/media/rc/rc-main.c
+++ b/drivers/media/rc/rc-main.c
@@ -803,13 +803,38 @@ static struct {
};
/**
- * show_protocols() - shows the current IR protocol(s)
+ * struct rc_filter_attribute - Device attribute relating to a filter type.
+ * @attr: Device attribute.
+ * @type: Filter type.
+ * @mask: false for filter value, true for filter mask.
+ */
+struct rc_filter_attribute {
+ struct device_attribute attr;
+ enum rc_filter_type type;
+ bool mask;
+};
+#define to_rc_filter_attr(a) container_of(a, struct rc_filter_attribute, attr)
+
+#define RC_PROTO_ATTR(_name, _mode, _show, _store, _type) \
+ struct rc_filter_attribute dev_attr_##_name = { \
+ .attr = __ATTR(_name, _mode, _show, _store), \
+ .type = (_type), \
+ }
+#define RC_FILTER_ATTR(_name, _mode, _show, _store, _type, _mask) \
+ struct rc_filter_attribute dev_attr_##_name = { \
+ .attr = __ATTR(_name, _mode, _show, _store), \
+ .type = (_type), \
+ .mask = (_mask), \
+ }
+
+/**
+ * show_protocols() - shows the current/wakeup IR protocol(s)
* @device: the device descriptor
* @mattr: the device attribute struct (unused)
* @buf: a pointer to the output buffer
*
* This routine is a callback routine for input read the IR protocol type(s).
- * it is trigged by reading /sys/class/rc/rc?/protocols.
+ * it is trigged by reading /sys/class/rc/rc?/[wakeup_]protocols.
* It returns the protocol names of supported protocols.
* Enabled protocols are printed in brackets.
*
@@ -820,6 +845,7 @@ static ssize_t show_protocols(struct device *device,
struct device_attribute *mattr, char *buf)
{
struct rc_dev *dev = to_rc_dev(device);
+ struct rc_filter_attribute *fattr = to_rc_filter_attr(mattr);
u64 allowed, enabled;
char *tmp = buf;
int i;
@@ -830,9 +856,10 @@ static ssize_t show_protocols(struct device *device,
mutex_lock(&dev->lock);
- enabled = dev->enabled_protocols[RC_FILTER_NORMAL];
- if (dev->driver_type == RC_DRIVER_SCANCODE)
- allowed = dev->allowed_protocols[RC_FILTER_NORMAL];
+ enabled = dev->enabled_protocols[fattr->type];
+ if (dev->driver_type == RC_DRIVER_SCANCODE ||
+ fattr->type == RC_FILTER_WAKEUP)
+ allowed = dev->allowed_protocols[fattr->type];
else if (dev->raw)
allowed = ir_raw_get_allowed_protocols();
else {
@@ -864,14 +891,14 @@ static ssize_t show_protocols(struct device *device,
}
/**
- * store_protocols() - changes the current IR protocol(s)
+ * store_protocols() - changes the current/wakeup IR protocol(s)
* @device: the device descriptor
* @mattr: the device attribute struct (unused)
* @buf: a pointer to the input buffer
* @len: length of the input buffer
*
* This routine is for changing the IR protocol type.
- * It is trigged by writing to /sys/class/rc/rc?/protocols.
+ * It is trigged by writing to /sys/class/rc/rc?/[wakeup_]protocols.
* Writing "+proto" will add a protocol to the list of enabled protocols.
* Writing "-proto" will remove a protocol from the list of enabled protocols.
* Writing "proto" will enable only "proto".
@@ -888,12 +915,14 @@ static ssize_t store_protocols(struct device *device,
size_t len)
{
struct rc_dev *dev = to_rc_dev(device);
+ struct rc_filter_attribute *fattr = to_rc_filter_attr(mattr);
bool enable, disable;
const char *tmp;
u64 type;
u64 mask;
int rc, i, count = 0;
ssize_t ret;
+ int (*change_protocol)(struct rc_dev *dev, u64 *rc_type);
/* Device is being removed */
if (!dev)
@@ -906,7 +935,7 @@ static ssize_t store_protocols(struct device *device,
ret = -EINVAL;
goto out;
}
- type = dev->enabled_protocols[RC_FILTER_NORMAL];
+ type = dev->enabled_protocols[fattr->type];
while ((tmp = strsep((char **) &data, " \n")) != NULL) {
if (!*tmp)
@@ -954,8 +983,10 @@ static ssize_t store_protocols(struct device *device,
goto out;
}
- if (dev->change_protocol) {
- rc = dev->change_protocol(dev, &type);
+ change_protocol = (fattr->type == RC_FILTER_NORMAL)
+ ? dev->change_protocol : dev->change_wakeup_protocol;
+ if (change_protocol) {
+ rc = change_protocol(dev, &type);
if (rc < 0) {
IR_dprintk(1, "Error setting protocols to 0x%llx\n",
(long long)type);
@@ -964,7 +995,7 @@ static ssize_t store_protocols(struct device *device,
}
}
- dev->enabled_protocols[RC_FILTER_NORMAL] = type;
+ dev->enabled_protocols[fattr->type] = type;
IR_dprintk(1, "Current protocol(s): 0x%llx\n",
(long long)type);
@@ -976,26 +1007,6 @@ out:
}
/**
- * struct rc_filter_attribute - Device attribute relating to a filter type.
- * @attr: Device attribute.
- * @type: Filter type.
- * @mask: false for filter value, true for filter mask.
- */
-struct rc_filter_attribute {
- struct device_attribute attr;
- enum rc_filter_type type;
- bool mask;
-};
-#define to_rc_filter_attr(a) container_of(a, struct rc_filter_attribute, attr)
-
-#define RC_FILTER_ATTR(_name, _mode, _show, _store, _type, _mask) \
- struct rc_filter_attribute dev_attr_##_name = { \
- .attr = __ATTR(_name, _mode, _show, _store), \
- .type = (_type), \
- .mask = (_mask), \
- }
-
-/**
* show_filter() - shows the current scancode filter value or mask
* @device: the device descriptor
* @attr: the device attribute struct
@@ -1128,8 +1139,10 @@ static int rc_dev_uevent(struct device *device, struct kobj_uevent_env *env)
/*
* Static device attribute struct with the sysfs attributes for IR's
*/
-static DEVICE_ATTR(protocols, S_IRUGO | S_IWUSR,
- show_protocols, store_protocols);
+static RC_PROTO_ATTR(protocols, S_IRUGO | S_IWUSR,
+ show_protocols, store_protocols, RC_FILTER_NORMAL);
+static RC_PROTO_ATTR(wakeup_protocols, S_IRUGO | S_IWUSR,
+ show_protocols, store_protocols, RC_FILTER_WAKEUP);
static RC_FILTER_ATTR(filter, S_IRUGO|S_IWUSR,
show_filter, store_filter, RC_FILTER_NORMAL, false);
static RC_FILTER_ATTR(filter_mask, S_IRUGO|S_IWUSR,
@@ -1140,7 +1153,8 @@ static RC_FILTER_ATTR(wakeup_filter_mask, S_IRUGO|S_IWUSR,
show_filter, store_filter, RC_FILTER_WAKEUP, true);
static struct attribute *rc_dev_attrs[] = {
- &dev_attr_protocols.attr,
+ &dev_attr_protocols.attr.attr,
+ &dev_attr_wakeup_protocols.attr.attr,
&dev_attr_filter.attr.attr,
&dev_attr_filter_mask.attr.attr,
&dev_attr_wakeup_filter.attr.attr,
diff --git a/include/media/rc-core.h b/include/media/rc-core.h
index f165115..0b9f890 100644
--- a/include/media/rc-core.h
+++ b/include/media/rc-core.h
@@ -97,6 +97,8 @@ enum rc_filter_type {
* @tx_resolution: resolution (in ns) of output sampler
* @scancode_filters: scancode filters (indexed by enum rc_filter_type)
* @change_protocol: allow changing the protocol used on hardware decoders
+ * @change_wakeup_protocol: allow changing the protocol used for wakeup
+ * filtering
* @open: callback to allow drivers to enable polling/irq when IR input device
* is opened.
* @close: callback to allow drivers to disable polling/irq when IR input device
@@ -145,6 +147,7 @@ struct rc_dev {
u32 tx_resolution;
struct rc_scancode_filter scancode_filters[RC_FILTER_MAX];
int (*change_protocol)(struct rc_dev *dev, u64 *rc_type);
+ int (*change_wakeup_protocol)(struct rc_dev *dev, u64 *rc_type);
int (*open)(struct rc_dev *dev);
void (*close)(struct rc_dev *dev);
int (*s_tx_mask)(struct rc_dev *dev, u32 mask);
--
1.8.3.2
--
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