diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/mei/bus.c | 42 | ||||
| -rw-r--r-- | drivers/misc/mei/mei_dev.h | 2 | ||||
| -rw-r--r-- | drivers/nfc/mei_phy.h | 3 | ||||
| -rw-r--r-- | drivers/nfc/microread/mei.c | 2 | ||||
| -rw-r--r-- | drivers/nfc/pn544/mei.c | 2 |
5 files changed, 41 insertions, 10 deletions
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index 1101d6efaf27..17b00baa53b1 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -30,23 +30,40 @@ #define to_mei_cl_driver(d) container_of(d, struct mei_cl_driver, driver) #define to_mei_cl_device(d) container_of(d, struct mei_cl_device, dev) +static inline uuid_le uuid_le_cast(const __u8 uuid[16]) +{ + return *(uuid_le *)uuid; +} + static int mei_cl_device_match(struct device *dev, struct device_driver *drv) { struct mei_cl_device *device = to_mei_cl_device(dev); struct mei_cl_driver *driver = to_mei_cl_driver(drv); const struct mei_cl_device_id *id; + const uuid_le *uuid; + const char *name; if (!device) return 0; + uuid = mei_me_cl_uuid(device->me_cl); + name = device->name; + if (!driver || !driver->id_table) return 0; id = driver->id_table; - while (id->name[0]) { - if (!strncmp(dev_name(dev), id->name, sizeof(id->name))) - return 1; + while (uuid_le_cmp(NULL_UUID_LE, uuid_le_cast(id->uuid))) { + + if (!uuid_le_cmp(*uuid, uuid_le_cast(id->uuid))) { + if (id->name[0]) { + if (!strncmp(name, id->name, sizeof(id->name))) + return 1; + } else { + return 1; + } + } id++; } @@ -69,7 +86,7 @@ static int mei_cl_device_probe(struct device *dev) dev_dbg(dev, "Device probe\n"); - strlcpy(id.name, dev_name(dev), sizeof(id.name)); + strlcpy(id.name, device->name, sizeof(id.name)); return driver->probe(device, &id); } @@ -100,9 +117,12 @@ static int mei_cl_device_remove(struct device *dev) static ssize_t modalias_show(struct device *dev, struct device_attribute *a, char *buf) { - int len; + struct mei_cl_device *device = to_mei_cl_device(dev); + const uuid_le *uuid = mei_me_cl_uuid(device->me_cl); + size_t len; - len = snprintf(buf, PAGE_SIZE, "mei:%s\n", dev_name(dev)); + len = snprintf(buf, PAGE_SIZE, "mei:%s:" MEI_CL_UUID_FMT ":", + device->name, MEI_CL_UUID_ARGS(uuid->b)); return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len; } @@ -116,7 +136,11 @@ ATTRIBUTE_GROUPS(mei_cl_dev); static int mei_cl_uevent(struct device *dev, struct kobj_uevent_env *env) { - if (add_uevent_var(env, "MODALIAS=mei:%s", dev_name(dev))) + struct mei_cl_device *device = to_mei_cl_device(dev); + const uuid_le *uuid = mei_me_cl_uuid(device->me_cl); + + if (add_uevent_var(env, "MODALIAS=mei:%s:" MEI_CL_UUID_FMT ":", + device->name, MEI_CL_UUID_ARGS(uuid->b))) return -ENOMEM; return 0; @@ -185,7 +209,9 @@ struct mei_cl_device *mei_cl_add_device(struct mei_device *dev, device->dev.bus = &mei_cl_bus_type; device->dev.type = &mei_cl_device_type; - dev_set_name(&device->dev, "%s", name); + strlcpy(device->name, name, sizeof(device->name)); + + dev_set_name(&device->dev, "mei:%s:%pUl", name, mei_me_cl_uuid(me_cl)); status = device_register(&device->dev); if (status) { diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index 79ab78184523..ab719e674edf 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -376,6 +376,7 @@ struct mei_cl *mei_cl_bus_find_cl_by_uuid(struct mei_device *dev, uuid_le uuid); * @dev: linux driver model device pointer * @me_cl: me client * @cl: mei client + * @name: device name * @ops: ME transport ops * @event_work: async work to execute event callback * @event_cb: Drivers register this callback to get asynchronous ME @@ -389,6 +390,7 @@ struct mei_cl_device { struct mei_me_client *me_cl; struct mei_cl *cl; + char name[MEI_CL_NAME_SIZE]; const struct mei_cl_ops *ops; diff --git a/drivers/nfc/mei_phy.h b/drivers/nfc/mei_phy.h index d669900f8278..06608c28ff14 100644 --- a/drivers/nfc/mei_phy.h +++ b/drivers/nfc/mei_phy.h @@ -3,7 +3,10 @@ #include <linux/mei_cl_bus.h> #include <net/nfc/hci.h> +#include <linux/uuid.h> +#define MEI_NFC_UUID __UUID_LE(0x0bb17a78, 0x2a8e, 0x4c50, \ + 0x94, 0xd4, 0x50, 0x26, 0x67, 0x23, 0x77, 0x5c) #define MEI_NFC_HEADER_SIZE 10 #define MEI_NFC_MAX_HCI_PAYLOAD 300 diff --git a/drivers/nfc/microread/mei.c b/drivers/nfc/microread/mei.c index 2d1395be64ae..f9f5fc97cdd7 100644 --- a/drivers/nfc/microread/mei.c +++ b/drivers/nfc/microread/mei.c @@ -67,7 +67,7 @@ static int microread_mei_remove(struct mei_cl_device *device) } static struct mei_cl_device_id microread_mei_tbl[] = { - { MICROREAD_DRIVER_NAME }, + { MICROREAD_DRIVER_NAME, MEI_NFC_UUID}, /* required last entry */ { } diff --git a/drivers/nfc/pn544/mei.c b/drivers/nfc/pn544/mei.c index 330cd4031009..101a37e12efa 100644 --- a/drivers/nfc/pn544/mei.c +++ b/drivers/nfc/pn544/mei.c @@ -67,7 +67,7 @@ static int pn544_mei_remove(struct mei_cl_device *device) } static struct mei_cl_device_id pn544_mei_tbl[] = { - { PN544_DRIVER_NAME }, + { PN544_DRIVER_NAME, MEI_NFC_UUID}, /* required last entry */ { } |