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| author | Simon Wilson <simonrules@users.noreply.github.com> | 2020-09-03 08:05:11 -0600 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-09-03 08:05:11 -0600 |
| commit | 563ee74ad551d08ea2b5e8dee2ac542c883b9f4b (patch) | |
| tree | 2e1e7600db362b9642d035f11b986bda78dc7e71 /include | |
| parent | fd59e16f1893d8b49b0fae421d09df7161b52616 (diff) | |
| parent | 9c7a358e0e4dbb447129b91d3633fb8d0cec2a85 (diff) | |
Merge pull request #174 from rohkkumar/mmap_plugin_support
Mmap plugin support
Diffstat (limited to 'include')
| -rw-r--r-- | include/tinyalsa/pcm.h | 10 | ||||
| -rw-r--r-- | include/tinyalsa/plugin.h | 6 |
2 files changed, 16 insertions, 0 deletions
diff --git a/include/tinyalsa/pcm.h b/include/tinyalsa/pcm.h index f4b7d73..1184d81 100644 --- a/include/tinyalsa/pcm.h +++ b/include/tinyalsa/pcm.h @@ -95,6 +95,16 @@ * */ #define PCM_NONBLOCK 0x00000010 +/** Means a PCM is opened + * @ingroup libtinyalsa-pcm + */ +#define PCM_STATE_OPEN 0x00 + +/** Means a PCM HW_PARAMS is set + * @ingroup libtinyalsa-pcm + */ +#define PCM_STATE_SETUP 0x01 + /** Means a PCM is prepared * @ingroup libtinyalsa-pcm */ diff --git a/include/tinyalsa/plugin.h b/include/tinyalsa/plugin.h index a140754..b2f97b9 100644 --- a/include/tinyalsa/plugin.h +++ b/include/tinyalsa/plugin.h @@ -30,6 +30,7 @@ #ifndef TINYALSA_PLUGIN_H #define TINYALSA_PLUGIN_H +#include <poll.h> #include <stdint.h> #include <stdlib.h> #include <sys/types.h> @@ -128,6 +129,11 @@ struct pcm_plugin_ops { /** Any custom or alsa specific ioctl implementation */ int (*ioctl) (struct pcm_plugin *plugin, int cmd, void *arg); + void *(*mmap) (struct pcm_plugin *plugin, void *addr, size_t length, + int prot, int flags, off_t offset); + int (*munmap) (struct pcm_plugin *plugin, void *addr, size_t length); + int (*poll) (struct pcm_plugin *plugin, struct pollfd *pfd, nfds_t nfds, + int timeout); }; /** Minimum and maximum values for hardware parameter constraints. |