diff options
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-mei | 21 | ||||
| -rw-r--r-- | drivers/misc/mei/bus.c | 33 | ||||
| -rw-r--r-- | drivers/misc/mei/client.h | 36 |
3 files changed, 90 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-mei b/Documentation/ABI/testing/sysfs-bus-mei index 3f8701e8fa24..3d37e2796d5a 100644 --- a/Documentation/ABI/testing/sysfs-bus-mei +++ b/Documentation/ABI/testing/sysfs-bus-mei @@ -26,3 +26,24 @@ KernelVersion: 4.3 Contact: Tomas Winkler <tomas.winkler@intel.com> Description: Stores mei client protocol version Format: %d + +What: /sys/bus/mei/devices/.../max_conn +Date: Nov 2019 +KernelVersion: 5.5 +Contact: Tomas Winkler <tomas.winkler@intel.com> +Description: Stores mei client maximum number of connections + Format: %d + +What: /sys/bus/mei/devices/.../fixed +Date: Nov 2019 +KernelVersion: 5.5 +Contact: Tomas Winkler <tomas.winkler@intel.com> +Description: Stores mei client fixed address, if any + Format: %d + +What: /sys/bus/mei/devices/.../max_len +Date: Nov 2019 +KernelVersion: 5.5 +Contact: Tomas Winkler <tomas.winkler@intel.com> +Description: Stores mei client maximum message length + Format: %d diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index 53bb394ccba6..a0a495c95e3c 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -791,11 +791,44 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *a, } static DEVICE_ATTR_RO(modalias); +static ssize_t max_conn_show(struct device *dev, struct device_attribute *a, + char *buf) +{ + struct mei_cl_device *cldev = to_mei_cl_device(dev); + u8 maxconn = mei_me_cl_max_conn(cldev->me_cl); + + return scnprintf(buf, PAGE_SIZE, "%d", maxconn); +} +static DEVICE_ATTR_RO(max_conn); + +static ssize_t fixed_show(struct device *dev, struct device_attribute *a, + char *buf) +{ + struct mei_cl_device *cldev = to_mei_cl_device(dev); + u8 fixed = mei_me_cl_fixed(cldev->me_cl); + + return scnprintf(buf, PAGE_SIZE, "%d", fixed); +} +static DEVICE_ATTR_RO(fixed); + +static ssize_t max_len_show(struct device *dev, struct device_attribute *a, + char *buf) +{ + struct mei_cl_device *cldev = to_mei_cl_device(dev); + u32 maxlen = mei_me_cl_max_len(cldev->me_cl); + + return scnprintf(buf, PAGE_SIZE, "%u", maxlen); +} +static DEVICE_ATTR_RO(max_len); + static struct attribute *mei_cldev_attrs[] = { &dev_attr_name.attr, &dev_attr_uuid.attr, &dev_attr_version.attr, &dev_attr_modalias.attr, + &dev_attr_max_conn.attr, + &dev_attr_fixed.attr, + &dev_attr_max_len.attr, NULL, }; ATTRIBUTE_GROUPS(mei_cldev); diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h index c1f9e810cf81..2f8954def591 100644 --- a/drivers/misc/mei/client.h +++ b/drivers/misc/mei/client.h @@ -69,6 +69,42 @@ static inline u8 mei_me_cl_ver(const struct mei_me_client *me_cl) return me_cl->props.protocol_version; } +/** + * mei_me_cl_max_conn - return me client max number of connections + * + * @me_cl: me client + * + * Return: me client max number of connections + */ +static inline u8 mei_me_cl_max_conn(const struct mei_me_client *me_cl) +{ + return me_cl->props.max_number_of_connections; +} + +/** + * mei_me_cl_fixed - return me client fixed address, if any + * + * @me_cl: me client + * + * Return: me client fixed address + */ +static inline u8 mei_me_cl_fixed(const struct mei_me_client *me_cl) +{ + return me_cl->props.fixed_address; +} + +/** + * mei_me_cl_max_len - return me client max msg length + * + * @me_cl: me client + * + * Return: me client max msg length + */ +static inline u32 mei_me_cl_max_len(const struct mei_me_client *me_cl) +{ + return me_cl->props.max_msg_length; +} + /* * MEI IO Functions */ |