arch/powerpc/include/asm/hvsi.h

   1 #ifndef _HVSI_H
   2 #define _HVSI_H
   3
   4 #define VS_DATA_PACKET_HEADER           0xff
   5 #define VS_CONTROL_PACKET_HEADER        0xfe
   6 #define VS_QUERY_PACKET_HEADER          0xfd
   7 #define VS_QUERY_RESPONSE_PACKET_HEADER 0xfc
   8
   9 /* control verbs */
  10 #define VSV_SET_MODEM_CTL    1 /* to service processor only */
  11 #define VSV_MODEM_CTL_UPDATE 2 /* from service processor only */
  12 #define VSV_CLOSE_PROTOCOL   3
  13
  14 /* query verbs */
  15 #define VSV_SEND_VERSION_NUMBER 1
  16 #define VSV_SEND_MODEM_CTL_STATUS 2
  17
  18 /* yes, these masks are not consecutive. */
  19 #define HVSI_TSDTR 0x01
  20 #define HVSI_TSCD  0x20
  21
  22 #define HVSI_MAX_OUTGOING_DATA 12
  23 #define HVSI_VERSION 1
  24
  25 struct hvsi_header {
  26         uint8_t  type;
  27         uint8_t  len;
  28         uint16_t seqno;
  29 } __attribute__((packed));
  30
  31 struct hvsi_data {
  32         struct hvsi_header hdr;
  33         uint8_t  data[HVSI_MAX_OUTGOING_DATA];
  34 } __attribute__((packed));
  35
  36 struct hvsi_control {
  37         struct hvsi_header hdr;
  38         uint16_t verb;
  39         /* optional depending on verb: */
  40         uint32_t word;
  41         uint32_t mask;
  42 } __attribute__((packed));
  43
  44 struct hvsi_query {
  45         struct hvsi_header hdr;
  46         uint16_t verb;
  47 } __attribute__((packed));
  48
  49 struct hvsi_query_response {
  50         struct hvsi_header hdr;
  51         uint16_t verb;
  52         uint16_t query_seqno;
  53         union {
  54                 uint8_t  version;
  55                 uint32_t mctrl_word;
  56         } u;
  57 } __attribute__((packed));
  58
  59
  60 #endif /* _HVSI_H */