diff options
Diffstat (limited to 'sound/firewire/fcp.h')
| -rw-r--r-- | sound/firewire/fcp.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/sound/firewire/fcp.h b/sound/firewire/fcp.h new file mode 100644 index 0000000000..512f7c4090 --- /dev/null +++ b/sound/firewire/fcp.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef SOUND_FIREWIRE_FCP_H_INCLUDED +#define SOUND_FIREWIRE_FCP_H_INCLUDED + +#define AVC_PLUG_INFO_BUF_BYTES 4 + +struct fw_unit; + +/* + * AV/C Digital Interface Command Set General Specification 4.2 + * (Sep 2004, 1394TA) + */ +enum avc_general_plug_dir { + AVC_GENERAL_PLUG_DIR_IN = 0, + AVC_GENERAL_PLUG_DIR_OUT = 1, + AVC_GENERAL_PLUG_DIR_COUNT +}; +int avc_general_set_sig_fmt(struct fw_unit *unit, unsigned int rate, + enum avc_general_plug_dir dir, + unsigned short plug); +int avc_general_get_sig_fmt(struct fw_unit *unit, unsigned int *rate, + enum avc_general_plug_dir dir, + unsigned short plug); +int avc_general_get_plug_info(struct fw_unit *unit, unsigned int subunit_type, + unsigned int subunit_id, unsigned int subfunction, + u8 info[AVC_PLUG_INFO_BUF_BYTES]); + +int fcp_avc_transaction(struct fw_unit *unit, + const void *command, unsigned int command_size, + void *response, unsigned int response_size, + unsigned int response_match_bytes); +void fcp_bus_reset(struct fw_unit *unit); + +#endif |