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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /sound/firewire/fcp.h | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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 000000000..512f7c409 --- /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 |