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35 | 35 | ||
36 | #include <atomic.h> |
36 | #include <atomic.h> |
37 | #include <ipc/ipc.h> |
37 | #include <ipc/ipc.h> |
38 | #include <libadt/list.h> |
38 | #include <libadt/list.h> |
39 | 39 | ||
40 | #define DEVMAP_NAME_MAXLEN 512 |
40 | #define DEVMAP_NAME_MAXLEN 255 |
- | 41 | ||
- | 42 | typedef ipcarg_t dev_handle_t; |
|
41 | 43 | ||
42 | typedef enum { |
44 | typedef enum { |
43 | DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD, |
45 | DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD, |
44 | DEVMAP_DRIVER_UNREGISTER, |
46 | DEVMAP_DRIVER_UNREGISTER, |
45 | DEVMAP_DEVICE_REGISTER, |
47 | DEVMAP_DEVICE_REGISTER, |
46 | DEVMAP_DEVICE_UNREGISTER, |
48 | DEVMAP_DEVICE_UNREGISTER, |
47 | DEVMAP_DEVICE_GET_NAME, |
49 | DEVMAP_DEVICE_GET_NAME, |
48 | DEVMAP_DEVICE_GET_HANDLE |
50 | DEVMAP_DEVICE_GET_HANDLE, |
- | 51 | DEVMAP_DEVICE_GET_COUNT, |
|
- | 52 | DEVMAP_DEVICE_GET_DEVICES |
|
49 | } devmap_request_t; |
53 | } devmap_request_t; |
50 | 54 | ||
51 | /** Representation of device driver. |
- | |
52 | * Each driver is responsible for a set of devices. |
- | |
53 | */ |
- | |
54 | typedef struct { |
- | |
55 | /** Pointers to previous and next drivers in linked list */ |
- | |
56 | link_t drivers; |
- | |
57 | /** Pointer to the linked list of devices controlled by |
- | |
58 | * this driver */ |
- | |
59 | link_t devices; |
- | |
60 | /** Phone asociated with this driver */ |
- | |
61 | ipcarg_t phone; |
- | |
62 | /** Device driver name */ |
- | |
63 | char *name; |
- | |
64 | /** Futex for list of devices owned by this driver */ |
- | |
65 | atomic_t devices_futex; |
- | |
66 | } devmap_driver_t; |
- | |
67 | - | ||
68 | /** Info about registered device |
55 | /** Interface provided by devmap. |
69 | * |
56 | * |
70 | */ |
- | |
71 | typedef struct { |
- | |
72 | /** Pointer to the previous and next device in the list of all devices */ |
- | |
73 | link_t devices; |
- | |
74 | /** Pointer to the previous and next device in the list of devices |
- | |
75 | owned by one driver */ |
- | |
76 | link_t driver_devices; |
- | |
77 | /** Unique device identifier */ |
- | |
78 | int handle; |
- | |
79 | /** Device name */ |
- | |
80 | char *name; |
- | |
81 | /** Device driver handling this device */ |
- | |
82 | devmap_driver_t *driver; |
- | |
83 | } devmap_device_t; |
- | |
84 | - | ||
85 | /** Interface provided by devmap. |
- | |
86 | * Every process that connects to devmap must ask one of following |
57 | * Every process that connects to devmap must ask one of following |
87 | * interfaces otherwise connection will be refused. |
58 | * interfaces otherwise connection will be refused. |
- | 59 | * |
|
88 | */ |
60 | */ |
89 | typedef enum { |
61 | typedef enum { |
90 | /** Connect as device driver */ |
62 | /** Connect as device driver */ |
91 | DEVMAP_DRIVER = 1, |
63 | DEVMAP_DRIVER = 1, |
92 | /** Connect as client */ |
64 | /** Connect as client */ |
93 | DEVMAP_CLIENT, |
65 | DEVMAP_CLIENT, |
94 | /** Create new connection to instance of device that |
66 | /** Create new connection to instance of device that |
95 | * is specified by second argument of call. */ |
67 | is specified by second argument of call. */ |
96 | DEVMAP_CONNECT_TO_DEVICE |
68 | DEVMAP_CONNECT_TO_DEVICE |
97 | } devmap_interface_t; |
69 | } devmap_interface_t; |
98 | 70 | ||
- | 71 | typedef struct { |
|
- | 72 | dev_handle_t handle; |
|
- | 73 | char name[DEVMAP_NAME_MAXLEN + 1]; |
|
99 | #endif |
74 | } dev_desc_t; |
100 | 75 | ||
- | 76 | #endif |