sound/firewire/fcp.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef SOUND_FIREWIRE_FCP_H_INCLUDED
   3 #define SOUND_FIREWIRE_FCP_H_INCLUDED
   4
   5 #define AVC_PLUG_INFO_BUF_BYTES 4
   6
   7 struct fw_unit;
   8
   9 /*
  10  * AV/C Digital Interface Command Set General Specification 4.2
  11  * (Sep 2004, 1394TA)
  12  */
  13 enum avc_general_plug_dir {
  14         AVC_GENERAL_PLUG_DIR_IN         = 0,
  15         AVC_GENERAL_PLUG_DIR_OUT        = 1,
  16         AVC_GENERAL_PLUG_DIR_COUNT
  17 };
  18 int avc_general_set_sig_fmt(struct fw_unit *unit, unsigned int rate,
  19                             enum avc_general_plug_dir dir,
  20                             unsigned short plug);
  21 int avc_general_get_sig_fmt(struct fw_unit *unit, unsigned int *rate,
  22                             enum avc_general_plug_dir dir,
  23                             unsigned short plug);
  24 int avc_general_get_plug_info(struct fw_unit *unit, unsigned int subunit_type,
  25                               unsigned int subunit_id, unsigned int subfunction,
  26                               u8 info[AVC_PLUG_INFO_BUF_BYTES]);
  27
  28 int fcp_avc_transaction(struct fw_unit *unit,
  29                         const void *command, unsigned int command_size,
  30                         void *response, unsigned int response_size,
  31                         unsigned int response_match_bytes);
  32 void fcp_bus_reset(struct fw_unit *unit);
  33
  34 #endif