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Use power-of-two max packet sizes.

This commit is contained in:
Kristian Høgsberg 2007-04-12 14:11:48 -04:00
parent fb1570efbf
commit 7096501f0d
1 changed files with 13 additions and 1 deletions
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14
juju/raw1394-iso.c
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@ -327,6 +327,18 @@ int raw1394_iso_recv_flush(raw1394handle_t handle)
return 0; return 0;
} }
static unsigned int
round_to_power_of_two(unsigned int value)
{
unsigned int pot;
pot = 1;
while (pot < value)
pot <<= 1;
return pot;
}
static int static int
iso_init(raw1394handle_t handle, int type, iso_init(raw1394handle_t handle, int type,
raw1394_iso_xmit_handler_t xmit_handler, raw1394_iso_xmit_handler_t xmit_handler,
@ -366,7 +378,7 @@ iso_init(raw1394handle_t handle, int type,
handle->iso.xmit_handler = xmit_handler; handle->iso.xmit_handler = xmit_handler;
handle->iso.recv_handler = recv_handler; handle->iso.recv_handler = recv_handler;
handle->iso.buf_packets = buf_packets; handle->iso.buf_packets = buf_packets;
handle->iso.max_packet_size = max_packet_size; handle->iso.max_packet_size = round_to_power_of_two(max_packet_size);
handle->iso.packet_phase = 0; handle->iso.packet_phase = 0;
handle->iso.packet_count = 0; handle->iso.packet_count = 0;
handle->iso.packets = handle->iso.packets =