diff options
Diffstat (limited to 'sound/soc/tegra/tegra_offload.c')
| -rw-r--r-- | sound/soc/tegra/tegra_offload.c | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/sound/soc/tegra/tegra_offload.c b/sound/soc/tegra/tegra_offload.c index 660bb4739554..cae5f44c9794 100644 --- a/sound/soc/tegra/tegra_offload.c +++ b/sound/soc/tegra/tegra_offload.c @@ -98,25 +98,52 @@ static const struct snd_pcm_hardware tegra_offload_pcm_hardware_capture = { int tegra_register_offload_ops(struct tegra_offload_ops *ops) { + int ret = 0; + mutex_lock(&tegra_offload_lock); if (!ops) { pr_err("Invalid ops pointer."); - return -EINVAL; + ret = -EINVAL; + goto errout; } if (tegra_offload_init_done) { pr_err("Offload ops already registered."); - return -EBUSY; + ret = -EBUSY; + goto errout; } + memcpy(&offload_ops, ops, sizeof(offload_ops)); tegra_offload_init_done = 1; - mutex_unlock(&tegra_offload_lock); - pr_info("succefully registered offload ops"); - return 0; + +errout: + mutex_unlock(&tegra_offload_lock); + return ret; } EXPORT_SYMBOL_GPL(tegra_register_offload_ops); +void tegra_deregister_offload_ops(void) +{ + mutex_lock(&tegra_offload_lock); + + if (!tegra_offload_init_done) { + pr_err("Offload ops not registered."); + mutex_unlock(&tegra_offload_lock); + return; + } + + memset(&offload_ops, 0, sizeof(offload_ops)); + tegra_offload_init_done = 0; + + mutex_unlock(&tegra_offload_lock); + + pr_info("succefully deregistered offload ops"); + return; +} +EXPORT_SYMBOL_GPL(tegra_deregister_offload_ops); + + /* Compress playback related APIs */ static void tegra_offload_compr_fragment_elapsed(void *arg, unsigned int is_eos) { |