Subversion Repositories HelenOS

Rev

Rev 3150 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 3150 Rev 4691
Line 26... Line 26...
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