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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup devmap |
29 | /** @addtogroup devmap |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | 32 | ||
33 | #ifndef DEVMAP_DEVMAP_H_ |
33 | #ifndef DEVMAP_DEVMAP_H_ |
34 | #define DEVMAP_DEVMAP_H_ |
34 | #define DEVMAP_DEVMAP_H_ |
35 | 35 | ||
- | 36 | #include <atomic.h> |
|
36 | #include <ipc/ipc.h> |
37 | #include <ipc/ipc.h> |
37 | #include <libadt/list.h> |
38 | #include <adt/list.h> |
- | 39 | ||
- | 40 | #define DEVMAP_NAME_MAXLEN 255 |
|
38 | 41 | ||
39 | #define DEVMAP_NAME_MAXLEN 512 |
42 | typedef ipcarg_t dev_handle_t; |
40 | 43 | ||
41 | typedef enum { |
44 | typedef enum { |
42 | DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD, |
45 | DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD, |
43 | DEVMAP_DRIVER_UNREGISTER, |
46 | DEVMAP_DRIVER_UNREGISTER, |
44 | DEVMAP_DEVICE_REGISTER, |
47 | DEVMAP_DEVICE_REGISTER, |
45 | DEVMAP_DEVICE_UNREGISTER, |
48 | DEVMAP_DEVICE_UNREGISTER, |
46 | DEVMAP_DEVICE_GET_NAME, |
49 | DEVMAP_DEVICE_GET_NAME, |
47 | DEVMAP_DEVICE_GET_HANDLE |
50 | DEVMAP_DEVICE_GET_HANDLE, |
- | 51 | DEVMAP_DEVICE_NULL_CREATE, |
|
- | 52 | DEVMAP_DEVICE_NULL_DESTROY, |
|
- | 53 | DEVMAP_DEVICE_GET_COUNT, |
|
- | 54 | DEVMAP_DEVICE_GET_DEVICES |
|
48 | } devmap_request_t; |
55 | } devmap_request_t; |
49 | 56 | ||
50 | /** Representation of device driver. |
- | |
51 | * Each driver is responsible for a set of devices. |
- | |
52 | */ |
- | |
53 | typedef struct { |
- | |
54 | /** Pointers to previous and next drivers in linked list */ |
- | |
55 | link_t drivers; |
- | |
56 | /** Pointer to the linked list of devices controlled by |
- | |
57 | * this driver */ |
- | |
58 | link_t devices; |
- | |
59 | /** Phone asociated with this driver */ |
- | |
60 | ipcarg_t phone; |
- | |
61 | /** Device driver name */ |
- | |
62 | char *name; |
- | |
63 | /** Futex for list of devices owned by this driver */ |
- | |
64 | atomic_t devices_futex; |
- | |
65 | } devmap_driver_t; |
- | |
66 | - | ||
67 | /** Info about registered device |
57 | /** Interface provided by devmap. |
68 | * |
58 | * |
69 | */ |
- | |
70 | typedef struct { |
- | |
71 | /** Pointer to the previous and next device in the list of all devices */ |
- | |
72 | link_t devices; |
- | |
73 | /** Pointer to the previous and next device in the list of devices |
- | |
74 | owned by one driver */ |
- | |
75 | link_t driver_devices; |
- | |
76 | /** Unique device identifier */ |
- | |
77 | int handle; |
- | |
78 | /** Device name */ |
- | |
79 | char *name; |
- | |
80 | /** Device driver handling this device */ |
- | |
81 | devmap_driver_t *driver; |
- | |
82 | } devmap_device_t; |
- | |
83 | - | ||
84 | /** Interface provided by devmap. |
- | |
85 | * Every process that connects to devmap must ask one of following |
59 | * Every process that connects to devmap must ask one of following |
86 | * interfaces otherwise connection will be refused. |
60 | * interfaces otherwise connection will be refused. |
- | 61 | * |
|
87 | */ |
62 | */ |
88 | typedef enum { |
63 | typedef enum { |
89 | /** Connect as device driver */ |
64 | /** Connect as device driver */ |
90 | DEVMAP_DRIVER = 1, |
65 | DEVMAP_DRIVER = 1, |
91 | /** Connect as client */ |
66 | /** Connect as client */ |
92 | DEVMAP_CLIENT, |
67 | DEVMAP_CLIENT, |
93 | /** Create new connection to instance of device that |
68 | /** Create new connection to instance of device that |
94 | * is specified by second argument of call. */ |
69 | is specified by second argument of call. */ |
95 | DEVMAP_CONNECT_TO_DEVICE |
70 | DEVMAP_CONNECT_TO_DEVICE |
96 | } devmap_interface_t; |
71 | } devmap_interface_t; |
97 | 72 | ||
- | 73 | typedef struct { |
|
- | 74 | dev_handle_t handle; |
|
- | 75 | char name[DEVMAP_NAME_MAXLEN + 1]; |
|
98 | #endif |
76 | } dev_desc_t; |
99 | 77 | ||
- | 78 | #endif |