include/splat-ctl.h

   1 #ifndef _SPLAT_CTL_H
   2 #define _SPLAT_CTL_H
   3
   4 /* Contains shared definitions which both the userspace
   5  * and kernelspace portions of splat must agree on.
   6  */
   7
   8 #define SPLAT_MAJOR                     229 /* XXX - Arbitrary */
   9 #define SPLAT_MINORS                    1
  10 #define SPLAT_DEV                       "/dev/splatctl"
  11
  12 #define SPLAT_NAME_SIZE                 12
  13 #define SPLAT_DESC_SIZE                 60
  14
  15 typedef struct splat_user {
  16         char name[SPLAT_NAME_SIZE];     /* short name */
  17         char desc[SPLAT_DESC_SIZE];     /* short description */
  18         int id;                         /* unique numeric id */
  19 } splat_user_t;
  20
  21 #define SPLAT_CFG_MAGIC                 0x15263748U
  22 typedef struct splat_cfg {
  23         unsigned int cfg_magic;         /* Unique magic */
  24         int cfg_cmd;                    /* Config command */
  25         int cfg_arg1;                   /* Config command arg 1 */
  26         int cfg_rc1;                    /* Config response 1 */
  27         union {
  28                 struct {
  29                         int size;
  30                         splat_user_t descs[0];
  31                 } splat_subsystems;
  32                 struct {
  33                         int size;
  34                         splat_user_t descs[0];
  35                 } splat_tests;
  36         } cfg_data;
  37 } splat_cfg_t;
  38
  39 #define SPLAT_CMD_MAGIC                 0x9daebfc0U
  40 typedef struct splat_cmd {
  41         unsigned int cmd_magic;         /* Unique magic */
  42         int cmd_subsystem;              /* Target subsystem */
  43         int cmd_test;                   /* Subsystem test */
  44         int cmd_data_size;              /* Extra opaque data */
  45         char cmd_data_str[0];           /* Opaque data region */
  46 } splat_cmd_t;
  47
  48 /* Valid ioctls */
  49 #define SPLAT_CFG                               _IOWR('f', 101, long)
  50 #define SPLAT_CMD                               _IOWR('f', 102, long)
  51
  52 /* Valid configuration commands */
  53 #define SPLAT_CFG_BUFFER_CLEAR          0x001   /* Clear text buffer */
  54 #define SPLAT_CFG_BUFFER_SIZE           0x002   /* Resize text buffer */
  55 #define SPLAT_CFG_SUBSYSTEM_COUNT       0x101   /* Number of subsystem */
  56 #define SPLAT_CFG_SUBSYSTEM_LIST        0x102   /* List of N subsystems */
  57 #define SPLAT_CFG_TEST_COUNT            0x201   /* Number of tests */
  58 #define SPLAT_CFG_TEST_LIST             0x202   /* List of N tests */
  59
  60 /* Valid subsystem and test commands defined in each subsystem, we do
  61  * need to be careful to avoid colisions.  That alone may argue to define
  62  * them all here, for now we just define the global error codes.
  63  */
  64 #define SPLAT_SUBSYSTEM_UNKNOWN         0xF00
  65 #define SPLAT_TEST_UNKNOWN              0xFFF
  66
  67 #endif /* _SPLAT_CTL_H */