TTakashi IwaiALSA: xen: Fix -Wformat-truncation warning
| 文件 | 最后提交记录 | 最后更新时间 |
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treewide: Add SPDX license identifier - Makefile/Kconfig Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 7 年前 | |
ALSA: xen-front: Use Xen common shared buffer implementation Use page directory based shared buffer implementation now available as common code for Xen frontend drivers. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> | 7 年前 | |
xen: make remove callback of xen driver void returned Since commit fc7a6209d571 ("bus: Make remove callback return void") forces bus_type::remove be void-returned, it doesn't make much sense for any bus based driver implementing remove callbalk to return non-void to its caller. This change is for xen bus based drivers. Acked-by: Juergen Gross <jgross@suse.com> Signed-off-by: Dawei Li <set_pte_at@outlook.com> Link: https://lore.kernel.org/r/TYCP286MB23238119AB4DF190997075C9CAE39@TYCP286MB2323.JPNP286.PROD.OUTLOOK.COM Signed-off-by: Juergen Gross <jgross@suse.com> | 3 年前 | |
ALSA: xen-front: Use Xen common shared buffer implementation Use page directory based shared buffer implementation now available as common code for Xen frontend drivers. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> | 7 年前 | |
ALSA: xen: Convert to generic PCM copy ops This patch converts the xen frontend driver code to use the new unified PCM copy callback. It's a straightforward conversion from *_user() to *_iter() variants. Note that copy_from/to_iter() returns the copied bytes, hence the error condition is adjusted accordingly. Cc: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Cc: xen-devel@lists.xenproject.org Link: https://lore.kernel.org/r/20230815190136.8987-16-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> | 2 年前 | |
ALSA: xen-front: Implement ALSA virtual sound driver Implement essential initialization of the sound driver: - introduce required data structures - handle driver registration - handle sound card registration - register sound driver on backend connection - remove sound driver on backend disconnect Initialize virtual sound card with streams according to the Xen store configuration. Implement ALSA driver operations including: - manage frontend/backend shared buffers - manage Xen bus event channel states Implement requests from front to back for ALSA PCM operations. - report ALSA period elapsed event: handle XENSND_EVT_CUR_POS notifications from the backend when stream position advances during playback/capture. The event carries a value of how many octets were played/captured at the time of the event. - implement explicit stream parameter negotiation between backend and frontend: handle XENSND_OP_HW_PARAM_QUERY request to read/update configuration space for the parameter given: request passes desired parameter interval and the response to this request returns min/max interval for the parameter to be used. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> | 8 年前 | |
ALSA: xen: Fix -Wformat-truncation warning The compile warning with -Wformat-truncation at xen_snd_front_cfg_card() is false-positive; the loop can be only for SNDRV_PCM_DEVICES which is at most 32. For suppressing the warning, replace snprintf() with scnprintf(). As stated in the above, truncation doesn't matter. Link: https://lore.kernel.org/r/20230915082802.28684-10-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> | 2 年前 | |
ALSA: xen-front: Read sound driver configuration from Xen store Read configuration values from Xen store according to xen/interface/io/sndif.h protocol: - introduce configuration structures for different components, e.g. sound card, device, stream - read PCM HW parameters, e.g rate, format etc. - detect stream type (capture/playback) - read device and card parameters Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> | 8 年前 | |
xen/sndfront: use xenbus_setup_ring() and xenbus_teardown_ring() Simplify sndfront's ring creation and removal via xenbus_setup_ring() and xenbus_teardown_ring(). Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Tested-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> # Arm64 only Signed-off-by: Juergen Gross <jgross@suse.com> | 4 年前 | |
xen/sound: switch xen_snd_front to use INVALID_GRANT_REF Instead of using a private macro for an invalid grant reference use the common one. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Tested-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> # Arm64 only Signed-off-by: Juergen Gross <jgross@suse.com> | 4 年前 |