};
#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), \
}
/**
- * show_protocols() - shows the current/wakeup IR protocol(s)
+ * show_protocols() - shows the current IR protocol(s)
* @device: the device descriptor
* @mattr: the device attribute struct
* @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?/[wakeup_]protocols.
+ * it is trigged by reading /sys/class/rc/rc?/protocols.
* It returns the protocol names of supported protocols.
* Enabled protocols are printed in brackets.
*
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;
mutex_lock(&dev->lock);
- if (fattr->type == RC_FILTER_NORMAL) {
- enabled = dev->enabled_protocols;
- allowed = dev->allowed_protocols;
- if (dev->raw && !allowed)
- allowed = ir_raw_get_allowed_protocols();
- } else {
- enabled = dev->enabled_wakeup_protocols;
- allowed = dev->allowed_wakeup_protocols;
- }
+ enabled = dev->enabled_protocols;
+ allowed = dev->allowed_protocols;
+ if (dev->raw && !allowed)
+ allowed = ir_raw_get_allowed_protocols();
mutex_unlock(&dev->lock);
const char *buf, size_t len)
{
struct rc_dev *dev = to_rc_dev(device);
- struct rc_filter_attribute *fattr = to_rc_filter_attr(mattr);
u64 *current_protocols;
- int (*change_protocol)(struct rc_dev *dev, u64 *rc_type);
struct rc_scancode_filter *filter;
- int (*set_filter)(struct rc_dev *dev, struct rc_scancode_filter *filter);
u64 old_protocols, new_protocols;
ssize_t rc;
if (!atomic_read(&dev->initialized))
return -ERESTARTSYS;
- if (fattr->type == RC_FILTER_NORMAL) {
- IR_dprintk(1, "Normal protocol change requested\n");
- current_protocols = &dev->enabled_protocols;
- change_protocol = dev->change_protocol;
- filter = &dev->scancode_filter;
- set_filter = dev->s_filter;
- } else {
- IR_dprintk(1, "Wakeup protocol change requested\n");
- current_protocols = &dev->enabled_wakeup_protocols;
- change_protocol = dev->change_wakeup_protocol;
- filter = &dev->scancode_wakeup_filter;
- set_filter = dev->s_wakeup_filter;
- }
+ IR_dprintk(1, "Normal protocol change requested\n");
+ current_protocols = &dev->enabled_protocols;
+ filter = &dev->scancode_filter;
- if (!change_protocol) {
+ if (!dev->change_protocol) {
IR_dprintk(1, "Protocol switching not supported\n");
return -EINVAL;
}
if (rc < 0)
goto out;
- rc = change_protocol(dev, &new_protocols);
+ rc = dev->change_protocol(dev, &new_protocols);
if (rc < 0) {
IR_dprintk(1, "Error setting protocols to 0x%llx\n",
(long long)new_protocols);
* Try setting the same filter with the new protocol (if any).
* Fall back to clearing the filter.
*/
- if (set_filter && filter->mask) {
+ if (dev->s_filter && filter->mask) {
if (new_protocols)
- rc = set_filter(dev, filter);
+ rc = dev->s_filter(dev, filter);
else
rc = -1;
if (rc < 0) {
filter->data = 0;
filter->mask = 0;
- set_filter(dev, filter);
+ dev->s_filter(dev, filter);
}
}
int ret;
unsigned long val;
int (*set_filter)(struct rc_dev *dev, struct rc_scancode_filter *filter);
- u64 *enabled_protocols;
/* Device is being removed */
if (!dev)
if (fattr->type == RC_FILTER_NORMAL) {
set_filter = dev->s_filter;
- enabled_protocols = &dev->enabled_protocols;
filter = &dev->scancode_filter;
} else {
set_filter = dev->s_wakeup_filter;
- enabled_protocols = &dev->enabled_wakeup_protocols;
filter = &dev->scancode_wakeup_filter;
}
else
new_filter.data = val;
- if (!*enabled_protocols && val) {
+ if (fattr->type == RC_FILTER_WAKEUP) {
+ /* refuse to set a filter unless a protocol is enabled */
+ if (dev->wakeup_protocol == RC_TYPE_UNKNOWN) {
+ ret = -EINVAL;
+ goto unlock;
+ }
+ }
+
+ if (fattr->type == RC_FILTER_NORMAL && !dev->enabled_protocols &&
+ val) {
/* refuse to set a filter unless a protocol is enabled */
ret = -EINVAL;
goto unlock;
return (ret < 0) ? ret : len;
}
+/*
+ * This is the list of all variants of all protocols, which is used by
+ * the wakeup_protocols sysfs entry. In the protocols sysfs entry some
+ * some protocols are grouped together (e.g. nec = nec + necx + nec32).
+ *
+ * For wakeup we need to know the exact protocol variant so the hardware
+ * can be programmed exactly what to expect.
+ */
+static const char * const proto_variant_names[] = {
+ [RC_TYPE_UNKNOWN] = "unknown",
+ [RC_TYPE_OTHER] = "other",
+ [RC_TYPE_RC5] = "rc-5",
+ [RC_TYPE_RC5X_20] = "rc-5x-20",
+ [RC_TYPE_RC5_SZ] = "rc-5-sz",
+ [RC_TYPE_JVC] = "jvc",
+ [RC_TYPE_SONY12] = "sony-12",
+ [RC_TYPE_SONY15] = "sony-15",
+ [RC_TYPE_SONY20] = "sony-20",
+ [RC_TYPE_NEC] = "nec",
+ [RC_TYPE_NECX] = "nec-x",
+ [RC_TYPE_NEC32] = "nec-32",
+ [RC_TYPE_SANYO] = "sanyo",
+ [RC_TYPE_MCE_KBD] = "mce_kbd",
+ [RC_TYPE_RC6_0] = "rc-6-0",
+ [RC_TYPE_RC6_6A_20] = "rc-6-6a-20",
+ [RC_TYPE_RC6_6A_24] = "rc-6-6a-24",
+ [RC_TYPE_RC6_6A_32] = "rc-6-6a-32",
+ [RC_TYPE_RC6_MCE] = "rc-6-mce",
+ [RC_TYPE_SHARP] = "sharp",
+ [RC_TYPE_XMP] = "xmp",
+ [RC_TYPE_CEC] = "cec",
+};
+
+/**
+ * show_wakeup_protocols() - shows the wakeup IR protocol
+ * @device: the device descriptor
+ * @mattr: the device attribute struct
+ * @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?/wakeup_protocols.
+ * It returns the protocol names of supported protocols.
+ * The enabled protocols are printed in brackets.
+ *
+ * dev->lock is taken to guard against races between device
+ * registration, store_protocols and show_protocols.
+ */
+static ssize_t show_wakeup_protocols(struct device *device,
+ struct device_attribute *mattr,
+ char *buf)
+{
+ struct rc_dev *dev = to_rc_dev(device);
+ u64 allowed;
+ enum rc_type enabled;
+ char *tmp = buf;
+ int i;
+
+ /* Device is being removed */
+ if (!dev)
+ return -EINVAL;
+
+ if (!atomic_read(&dev->initialized))
+ return -ERESTARTSYS;
+
+ mutex_lock(&dev->lock);
+
+ allowed = dev->allowed_wakeup_protocols;
+ enabled = dev->wakeup_protocol;
+
+ mutex_unlock(&dev->lock);
+
+ IR_dprintk(1, "%s: allowed - 0x%llx, enabled - %d\n",
+ __func__, (long long)allowed, enabled);
+
+ for (i = 0; i < ARRAY_SIZE(proto_variant_names); i++) {
+ if (allowed & (1ULL << i)) {
+ if (i == enabled)
+ tmp += sprintf(tmp, "[%s] ",
+ proto_variant_names[i]);
+ else
+ tmp += sprintf(tmp, "%s ",
+ proto_variant_names[i]);
+ }
+ }
+
+ if (tmp != buf)
+ tmp--;
+ *tmp = '\n';
+
+ return tmp + 1 - buf;
+}
+
+/**
+ * store_wakeup_protocols() - changes the wakeup IR protocol(s)
+ * @device: the device descriptor
+ * @mattr: the device attribute struct
+ * @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?/wakeup_protocols.
+ * Returns @len on success or a negative error code.
+ *
+ * dev->lock is taken to guard against races between device
+ * registration, store_protocols and show_protocols.
+ */
+static ssize_t store_wakeup_protocols(struct device *device,
+ struct device_attribute *mattr,
+ const char *buf, size_t len)
+{
+ struct rc_dev *dev = to_rc_dev(device);
+ enum rc_type protocol;
+ ssize_t rc;
+ u64 allowed;
+ int i;
+
+ /* Device is being removed */
+ if (!dev)
+ return -EINVAL;
+
+ if (!atomic_read(&dev->initialized))
+ return -ERESTARTSYS;
+
+ mutex_lock(&dev->lock);
+
+ allowed = dev->allowed_wakeup_protocols;
+
+ if (sysfs_streq(buf, "none")) {
+ protocol = RC_TYPE_UNKNOWN;
+ } else {
+ for (i = 0; i < ARRAY_SIZE(proto_variant_names); i++) {
+ if ((allowed & (1ULL << i)) &&
+ sysfs_streq(buf, proto_variant_names[i])) {
+ protocol = i;
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(proto_variant_names)) {
+ rc = -EINVAL;
+ goto out;
+ }
+ }
+
+ if (dev->wakeup_protocol != protocol) {
+ dev->wakeup_protocol = protocol;
+ IR_dprintk(1, "Wakeup protocol changed to %d\n", protocol);
+
+ if (protocol == RC_TYPE_RC6_MCE)
+ dev->scancode_wakeup_filter.data = 0x800f0000;
+ else
+ dev->scancode_wakeup_filter.data = 0;
+ dev->scancode_wakeup_filter.mask = 0;
+
+ rc = dev->s_wakeup_filter(dev, &dev->scancode_wakeup_filter);
+ if (rc == 0)
+ rc = len;
+ } else {
+ rc = len;
+ }
+
+out:
+ mutex_unlock(&dev->lock);
+ return rc;
+}
+
static void rc_dev_release(struct device *device)
{
struct rc_dev *dev = to_rc_dev(device);
/*
* Static device attribute struct with the sysfs attributes for IR's
*/
-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 DEVICE_ATTR(protocols, 0644, show_protocols, store_protocols);
+static DEVICE_ATTR(wakeup_protocols, 0644, show_wakeup_protocols,
+ store_wakeup_protocols);
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,
show_filter, store_filter, RC_FILTER_WAKEUP, true);
static struct attribute *rc_dev_protocol_attrs[] = {
- &dev_attr_protocols.attr.attr,
+ &dev_attr_protocols.attr,
NULL,
};
.attrs = rc_dev_protocol_attrs,
};
-static struct attribute *rc_dev_wakeup_protocol_attrs[] = {
- &dev_attr_wakeup_protocols.attr.attr,
- NULL,
-};
-
-static struct attribute_group rc_dev_wakeup_protocol_attr_grp = {
- .attrs = rc_dev_wakeup_protocol_attrs,
-};
-
static struct attribute *rc_dev_filter_attrs[] = {
&dev_attr_filter.attr.attr,
&dev_attr_filter_mask.attr.attr,
static struct attribute *rc_dev_wakeup_filter_attrs[] = {
&dev_attr_wakeup_filter.attr.attr,
&dev_attr_wakeup_filter_mask.attr.attr,
+ &dev_attr_wakeup_protocols.attr,
NULL,
};
dev->sysfs_groups[attr++] = &rc_dev_filter_attr_grp;
if (dev->s_wakeup_filter)
dev->sysfs_groups[attr++] = &rc_dev_wakeup_filter_attr_grp;
- if (dev->change_wakeup_protocol)
- dev->sysfs_groups[attr++] = &rc_dev_wakeup_protocol_attr_grp;
dev->sysfs_groups[attr++] = NULL;
rc = device_add(&dev->dev);
projects / platform / kernel / linux-rpi3.git / commitdiff