[PATCH BlueZ v7 0/9] mcp: support multiple MCP and implement local GMCS

[Pauli Virtanen <pav@iki.fi>]

v7:
- fix -Werror=unused-result

v6:
- use only rewritten bt_uinput to be able to change license
- make all patches buildable, combining commits
- in that, split out mcp: add support for Repeat & Shuffle
- fixup: re-read of values on track change if remote doesn't notify
- fixup: make sure other values are read only after CCID

v5:
- fix -D_FORTIFY_SOURCE false positive vs. strncpy in the old avctp code
  in testbot environment

v4:
- move uinput-util.h to src/shared + adapt accordingly
- improve debug logs in profile

v3:
- add missing #include to fix build in the test environment

v2:
- fix compilation issues
- remove unnecessary code in get_media_cp_op_supported

***

For Media Control Client, add support for multiple GMCS / MCS services
on the server. Revise the API accordingly.

For Media Control Server, make it a non-stub implementation (OTS still
missing), and add an API the profile can use.

Add tests.

This changes the design of the previous MCP code, so it's mostly a
rewrite.

The shared/mcp: commit doesn't fix the API in profiles/audio, that's
done in the later mcp: commit, as it's a rewrite of the API.

TODO (for later): OTP/OTS parts -- requires design for OTP/OTS
implementation first

TODO (for later): MPRIS integration to GMCS server -- this needs some
redesign in media.c as it's hardcoded to AVRCP there.

Tested devices (MCS):
- Creative Zen Hybrid Pro (doesn't even connect without GMCS)
- Samsung Galaxy Buds Pro2
- Creative Aurvana Ace 2

Tested devices (MCP):
- Samsung Galaxy A56

Pauli Virtanen (9):
  shared/mcp, mcp: support multiple MCP, and add non-stub MCS server
  test-mcp: add tests for MCP / MCS
  mcp: add support for Repeat & Shuffle for remote player
  shared/uinput: add uinput utility functions
  avctp: use uinput utilities from src/shared
  mcp: add local GMCS service that emits uinput media keys
  shared/mcp: on track changed, re-read values if notify not available
  test-mcp: check attributes are reread on track change if no notify
  shared/mcp: complete CCID read before considering other attributes

 .gitignore             |    1 +
 Makefile.am            |    9 +-
 lib/bluetooth/uuid.h   |   27 +-
 profiles/audio/avctp.c |  166 +--
 profiles/audio/mcp.c   |  808 +++++++---
 src/shared/mcp.c       | 3216 +++++++++++++++++++++++-----------------
 src/shared/mcp.h       |  186 ++-
 src/shared/mcs.h       |   51 +-
 src/shared/uinput.c    |  204 +++
 src/shared/uinput.h    |   32 +
 unit/test-mcp.c        | 1859 +++++++++++++++++++++++
 11 files changed, 4802 insertions(+), 1757 deletions(-)
 create mode 100644 src/shared/uinput.c
 create mode 100644 src/shared/uinput.h
 create mode 100644 unit/test-mcp.c

-- 
2.51.1