diff options
| author | Filip Bozuta <Filip.Bozuta@rt-rk.com> | 2020-01-15 20:36:46 +0100 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2020-02-19 11:17:40 +0100 |
| commit | 045823a98c30fbcafa6d6b61a28b284de7038f07 (patch) | |
| tree | 5082b5cd02a6082a72db7195b2ab09803ffe3ae5 /linux-user/syscall_defs.h | |
| parent | fe333025c6bff41eabb7bf420492f22cc5710e1b (diff) | |
linux-user: Add support for selected alsa timer instructions using ioctls
This patch implements functionalities of following ioctls:
SNDRV_TIMER_IOCTL_START - Start selected alsa timer
Starts the timer device that is selected. The third ioctl's argument is
ignored. Before calling this ioctl, the ioctl "SNDRV_TIMER_IOCTL_SELECT"
should be called first to select the timer that is to be started. If no
timer is selected, the error EBADFD ("File descriptor in bad shape")
is returned.
SNDRV_TIMER_IOCTL_STOP - Stop selected alsa timer
Stops the timer device that is selected. The third ioctl's argument is
ignored. Before calling this ioctl, the ioctl "SNDRV_TIMER_IOCTL_SELECT"
should be called first to select the timer that is to be stopped. If no
timer is selected, the error EBADFD ("File descriptor in bad shape")
is returned.
SNDRV_TIMER_IOCTL_CONTINUE - Continue selected alsa timer
Continues the timer device that is selected. The third ioctl's argument is
ignored. Before calling this ioctl, the ioctl "SNDRV_TIMER_IOCTL_SELECT"
should be called first to select the timer that is to be continued. If no
timer is selected, the error EBADFD ("File descriptor in bad shape")
is returned.
SNDRV_TIMER_IOCTL_PAUSE - Pause selected alsa timer
Pauses the timer device that is selected. The third ioctl's argument is
ignored. Before calling this ioctl, the ioctl "SNDRV_TIMER_IOCTL_SELECT"
should be called first to select the timer that is to be paused. If no
timer is selected, the error EBADFD ("File descriptor in bad shape")
is returned.
Implementation notes:
Since all of the implemented ioctls have NULL as their third argument,
their implementation was straightforward.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Message-Id: <1579117007-7565-13-git-send-email-Filip.Bozuta@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'linux-user/syscall_defs.h')
| -rw-r--r-- | linux-user/syscall_defs.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index cf34129fc3..152ec637cb 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -2516,6 +2516,10 @@ struct target_snd_timer_status { struct snd_timer_params) #define TARGET_SNDRV_TIMER_IOCTL_STATUS TARGET_IOR('T', 0x14, \ struct target_snd_timer_status) +#define TARGET_SNDRV_TIMER_IOCTL_START TARGET_IO('T', 0xa0) +#define TARGET_SNDRV_TIMER_IOCTL_STOP TARGET_IO('T', 0xa1) +#define TARGET_SNDRV_TIMER_IOCTL_CONTINUE TARGET_IO('T', 0xa2) +#define TARGET_SNDRV_TIMER_IOCTL_PAUSE TARGET_IO('T', 0xa3) /* vfat ioctls */ #define TARGET_VFAT_IOCTL_READDIR_BOTH TARGET_IORU('r', 1) |