82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
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#include <unistd.h>
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#include "raw1394.h"
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#include "kernel-raw1394.h"
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#include "raw1394_private.h"
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int raw1394_loop_iterate(struct raw1394_handle *handle)
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{
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struct raw1394_request *req = &handle->req;
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int retval = 0;
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if (read(handle->fd, req, sizeof(*req)) < 0) {
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return -1;
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}
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switch (req->type) {
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case RAW1394_REQ_BUS_RESET:
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handle->generation = req->generation;
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handle->num_of_nodes = req->misc & 0xffff;
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handle->local_id = req->misc >> 16;
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if (handle->bus_reset_handler) {
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retval = handle->bus_reset_handler(handle);
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}
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break;
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case RAW1394_REQ_ISO_RECEIVE:
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if (handle->iso_handler) {
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retval = handle->iso_handler(handle,
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(handle->buffer[0] >> 8)
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& 0x3f, req->length,
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handle->buffer);
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}
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break;
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default:
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if (handle->tag_handler) {
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retval = handle->tag_handler(handle, req->tag,
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req->error);
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}
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break;
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}
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return retval;
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}
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bus_reset_handler_t raw1394_set_bus_reset_handler(struct raw1394_handle *handle,
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bus_reset_handler_t new)
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{
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bus_reset_handler_t old;
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old = handle->bus_reset_handler;
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handle->bus_reset_handler = new;
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return old;
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}
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tag_handler_t raw1394_set_tag_handler(struct raw1394_handle *handle,
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tag_handler_t new)
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{
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tag_handler_t old;
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old = handle->tag_handler;
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handle->tag_handler = new;
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return old;
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}
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iso_handler_t raw1394_set_iso_handler(struct raw1394_handle *handle,
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iso_handler_t new)
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{
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iso_handler_t old;
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old = handle->iso_handler;
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handle->iso_handler = new;
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return old;
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}
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