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| author | Hsin-Yu Chao <hychao@google.com> | 2019-05-15 15:55:22 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-06-03 06:22:55 -0700 |
| commit | 0f2e551efcb072f5578750e8819355fbffd9d698 (patch) | |
| tree | fbb7c9a4a028f05e95ac329ec4fe0a72bfc46829 /cras/src/server/cras_bt_device.h | |
| parent | 149c4ed4c1cc7e4b345f128a01302a5061d7ae8c (diff) | |
| download | adhd-0f2e551efcb072f5578750e8819355fbffd9d698.tar.gz | |
CRAS: hfp - mSBC codec read write
This change implements basic audio input and output of
wideband speech mode of HFP, using mSBC codec.
BUG=chromium:843048
TEST=Apply full patch set, manual test with Bose QC35 II
Change-Id: I7577daa62248c8e2219a33baf019953d6bb0f613
Reviewed-on: https://chromium-review.googlesource.com/1362734
Commit-Ready: Hsinyu Chao <hychao@chromium.org>
Tested-by: Hsinyu Chao <hychao@chromium.org>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Hsinyu Chao <hychao@chromium.org>
Diffstat (limited to 'cras/src/server/cras_bt_device.h')
| -rw-r--r-- | cras/src/server/cras_bt_device.h | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/cras/src/server/cras_bt_device.h b/cras/src/server/cras_bt_device.h index 3325450c..de3a7836 100644 --- a/cras/src/server/cras_bt_device.h +++ b/cras/src/server/cras_bt_device.h @@ -85,11 +85,22 @@ int cras_bt_device_disconnect(DBusConnection *conn, /* Gets the SCO socket for the device. * Args: * device - The device object to get SCO socket for. + * codec - 1 for CVSD, 2 for mSBC */ -int cras_bt_device_sco_connect(struct cras_bt_device *device); +int cras_bt_device_sco_connect(struct cras_bt_device *device, int codec); -/* Queries the preffered mtu value for SCO socket. */ -int cras_bt_device_sco_mtu(struct cras_bt_device *device, int sco_socket); +/* Gets the SCO packet size in bytes, used by HFP iodev for audio I/O. + * The logic is built base on experience: for USB bus, respect BT Core spec + * that has clear recommendation of packet size of codecs (CVSD, mSBC). + * As for other buses, use the MTU value of SCO socket filled by driver. + * Args: + * device - The bt device to query mtu. + * sco_socket - The SCO socket. + * codec - 1 for CVSD, 2 for mSBC per HFP 1.7 specification. + */ +int cras_bt_device_sco_packet_size(struct cras_bt_device *device, + int sco_socket, + int codec); /* Appends an iodev to bt device. * Args: @@ -172,11 +183,12 @@ int cras_bt_device_audio_gateway_initialized(struct cras_bt_device *device); * Establishes SCO connection if it has not been established on the BT device. * Note: this function should be only used for hfp_alsa_io. * Args: - * device - The bluetooth device. + * device - The bluetooth device. + * codec - 1 for CVSD, 2 for mSBC * Returns: * 0 on success, error code otherwise. */ -int cras_bt_device_get_sco(struct cras_bt_device *device); +int cras_bt_device_get_sco(struct cras_bt_device *device, int codec); /* * Closes SCO connection if the caller is the last user for the connection on |