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libraw1394
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Use new async stream ioctl 

This implements asynchronous streams on juju, i.e. enables
raw1394_async_stream() and raw1394_start_async_stream() to work
with the new firewire kernel stack.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Stefan Richter 2009-05-30 13:18:59 +02:00
parent 49dda1ef90
commit efb814334e
3 changed files with 52 additions and 16 deletions
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2
src/dispatch.c
View File

@ -459,7 +459,7 @@ int raw1394_async_stream(raw1394handle_t handle, unsigned int channel,
return -1;
}
if (handle->is_fw)
return fw_async_stream(handle->mode.fw, channel, tag, sy, speed, length, data);
return fw_async_stream(handle, channel, tag, sy, speed, length, data);
else
return ieee1394_async_stream(handle, channel, tag, sy, speed, length, data);
}

54
src/fw.c
View File

@ -946,6 +946,18 @@ send_request(fw_handle_t handle, int tcode,
int ioctl_nr = FW_CDEV_IOC_SEND_REQUEST;
int fd, i;
#ifdef FW_CDEV_IOC_SEND_STREAM_PACKET /* added in kernel 2.6.30 */
if (tcode == TCODE_STREAM_DATA) {
ioctl_nr = FW_CDEV_IOC_SEND_STREAM_PACKET;
fd = handle->ioctl_fd;
}
#else
if (tcode == TCODE_STREAM_DATA) {
errno = ENOSYS;
return -1;
}
#endif
#ifdef FW_CDEV_IOC_SEND_BROADCAST_REQUEST /* added in kernel 2.6.30 */
if (node == 0xffff) {
ioctl_nr = FW_CDEV_IOC_SEND_BROADCAST_REQUEST;
@ -990,11 +1002,27 @@ node_id_ok:
request = (struct fw_cdev_send_request *) handle->buffer;
request->tcode = tcode;
request->generation = handle->generation;
request->offset = addr;
request->length = in_length > out_length ? in_length : out_length;
request->offset = addr;
request->closure = ptr_to_u64(closure);
request->data = ptr_to_u64(in);
request->generation = handle->generation;
#ifdef FW_CDEV_IOC_SEND_STREAM_PACKET
if (tcode == TCODE_STREAM_DATA) {
struct fw_cdev_send_stream_packet *p
= (struct fw_cdev_send_stream_packet *) request;
p->length = in_length;
p->tag = (addr >> 14) & 0x3;
p->channel = (addr >> 8) & 0x3f;
p->sy = addr & 0xf;
p->closure = ptr_to_u64(closure);
p->data = ptr_to_u64(in);
p->generation = handle->generation;
p->speed = (addr >> 4) & 0x7;
}
#endif
return ioctl(fd, ioctl_nr, request);
}
@ -1115,9 +1143,13 @@ fw_start_async_stream(fw_handle_t handle, unsigned int channel,
unsigned int speed, size_t length, quadlet_t *data,
unsigned long rawtag)
{
/* FIXME: implement this? */
errno = ENOSYS;
return -1;
nodeaddr_t addr = (tag & 0x3) << 14 |
(channel & 0x3f) << 8 |
(speed & 0x7) << 4 |
(sy & 0xf);
return send_request(handle, TCODE_STREAM_DATA,
0, addr, length, data, 0, NULL, rawtag);
}
@ -1242,13 +1274,17 @@ fw_lock64(raw1394handle_t handle, nodeid_t node, nodeaddr_t addr,
}
int
fw_async_stream(fw_handle_t handle, unsigned int channel,
fw_async_stream(raw1394handle_t handle, unsigned int channel,
unsigned int tag, unsigned int sy, unsigned int speed,
size_t length, quadlet_t *data)
{
/* FIXME: implement this? */
errno = ENOSYS;
return -1;
nodeaddr_t addr = (tag & 0x3) << 14 |
(channel & 0x3f) << 8 |
(speed & 0x7) << 4 |
(sy & 0xf);
return send_request_sync(handle, TCODE_STREAM_DATA,
0, addr, length, data, 0, NULL);
}
int

2
src/fw.h
View File

@ -189,7 +189,7 @@ int fw_lock(raw1394handle_t handle, nodeid_t node, nodeaddr_t addr,
int fw_lock64(raw1394handle_t handle, nodeid_t node, nodeaddr_t addr,
unsigned int extcode, octlet_t data, octlet_t arg,
octlet_t *result);
int fw_async_stream(fw_handle_t handle, unsigned int channel,
int fw_async_stream(raw1394handle_t handle, unsigned int channel,
unsigned int tag, unsigned int sy, unsigned int speed,
size_t length, quadlet_t *data);
int fw_async_send(fw_handle_t handle,