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implement tag matching for rawiso reception 

git-svn-id: svn://svn.linux1394.org/libraw1394/trunk@101 53a565d1-3bb7-0310-b661-cf11e63c67ab
This commit is contained in:
dmaas 2003-01-15 06:36:19 +00:00
parent ce3cc1bd34
commit e6e6375cee
3 changed files with 12 additions and 4 deletions
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12
src/iso.c
View File

@ -290,15 +290,23 @@ int raw1394_iso_recv_set_channel_mask(raw1394handle_t handle, u_int64_t mask)
/** /**
* raw1394_iso_recv_start - begin isochronous reception * raw1394_iso_recv_start - begin isochronous reception
* @start_on_cycle: isochronous cycle number on which to start (-1 if you don't care) * @start_on_cycle: isochronous cycle number on which to start (-1 if you don't care)
* @tag_mask: mask of tag fields to match (-1 to receive all packets)
* @sync: not used, reserved for future implementation
**/ **/
int raw1394_iso_recv_start(raw1394handle_t handle, int start_on_cycle) int raw1394_iso_recv_start(raw1394handle_t handle, int start_on_cycle, int tag_mask, int sync)
{ {
int args[3];
if(!handle->iso_buffer) if(!handle->iso_buffer)
return -1; return -1;
if(!handle->iso_recv_handler) if(!handle->iso_recv_handler)
return -1; return -1;
if(ioctl(handle->fd, RAW1394_ISO_RECV_START, start_on_cycle)) args[0] = start_on_cycle;
args[1] = tag_mask;
args[2] = sync;
if(ioctl(handle->fd, RAW1394_ISO_RECV_START, &args[0]))
return -1; return -1;
return 0; return 0;

2
src/kernel-raw1394.h
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@ -120,7 +120,7 @@ typedef struct arm_request_response {
/* ioctls */ /* ioctls */
#define RAW1394_ISO_XMIT_INIT 1 /* arg: raw1394_iso_status* */ #define RAW1394_ISO_XMIT_INIT 1 /* arg: raw1394_iso_status* */
#define RAW1394_ISO_RECV_INIT 2 /* arg: raw1394_iso_status* */ #define RAW1394_ISO_RECV_INIT 2 /* arg: raw1394_iso_status* */
#define RAW1394_ISO_RECV_START 3 /* arg: int, starting cycle */ #define RAW1394_ISO_RECV_START 3 /* arg: int[3], { starting cycle, tag, sync } */
#define RAW1394_ISO_XMIT_START 8 /* arg: int[2], { starting cycle, prebuffer } */ #define RAW1394_ISO_XMIT_START 8 /* arg: int[2], { starting cycle, prebuffer } */
#define RAW1394_ISO_STOP 4 #define RAW1394_ISO_STOP 4
#define RAW1394_ISO_GET_STATUS 5 /* arg: raw1394_iso_status* */ #define RAW1394_ISO_GET_STATUS 5 /* arg: raw1394_iso_status* */

2
src/raw1394.h
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@ -118,7 +118,7 @@ int raw1394_iso_recv_unlisten_channel(raw1394handle_t handle, unsigned char chan
int raw1394_iso_recv_set_channel_mask(raw1394handle_t handle, u_int64_t mask); int raw1394_iso_recv_set_channel_mask(raw1394handle_t handle, u_int64_t mask);
int raw1394_iso_xmit_start(raw1394handle_t handle, int start_on_cycle, int prebuffer_packets); int raw1394_iso_xmit_start(raw1394handle_t handle, int start_on_cycle, int prebuffer_packets);
int raw1394_iso_recv_start(raw1394handle_t handle, int start_on_cycle); int raw1394_iso_recv_start(raw1394handle_t handle, int start_on_cycle, int tag_mask, int sync);
void raw1394_iso_stop(raw1394handle_t handle); void raw1394_iso_stop(raw1394handle_t handle);
void raw1394_iso_shutdown(raw1394handle_t handle); void raw1394_iso_shutdown(raw1394handle_t handle);