static bool check_events(struct dsp_node *node, struct dsp_msg *msg)
{
unsigned int index = 0;
pr_debug("waiting for events");
if (!dsp_wait_for_events(dsp_handle, events, 3, &index, 1000)) {
pr_warning("failed waiting for events");
return false;
}
switch (index) {
case 0:
dsp_node_get_message(dsp_handle, node, msg, 100);
pr_debug("got dsp message: 0x%0x 0x%0x 0x%0x",
msg->cmd, msg->arg_1, msg->arg_2);
return true;
case 1:
pr_err("got DSP MMUFAULT");
return false;
case 2:
pr_err("got DSP SYSERROR");
return false;
default:
pr_err("wrong event index");
return false;
}
}
static GstFlowReturn
pad_chain(GstPad *pad,
GstBuffer *buf)
{
GstDspDummy *self;
GstFlowReturn ret;
GstBuffer *out_buf;
self = GST_DSP_DUMMY(GST_OBJECT_PARENT(pad));
ret = gst_pad_alloc_buffer_and_set_caps(self->srcpad,
GST_BUFFER_OFFSET_NONE,
GST_BUFFER_SIZE(buf),
GST_BUFFER_CAPS(buf),
&out_buf);
if (G_UNLIKELY(ret != GST_FLOW_OK)) {
GST_ERROR_OBJECT(self, "couldn't allocate buffer");
ret = GST_FLOW_ERROR;
goto leave;
}
/* map dsp to gpp address */
map_buffer(self, buf, self->in_buffer);
map_buffer(self, out_buf, self->out_buffer);
configure_dsp_node(self->dsp_handle, self->node, self->in_buffer, self->out_buffer);
if (self->in_buffer->need_copy) {
memcpy(self->in_buffer->data, GST_BUFFER_DATA(buf), GST_BUFFER_SIZE(buf));
self->in_buffer->need_copy = false;
}
{
dsp_msg_t msg;
dmm_buffer_clean(self->in_buffer, self->in_buffer->size);
msg.cmd = 1;
msg.arg_1 = self->in_buffer->size;
dsp_node_put_message(self->dsp_handle, self->node, &msg, -1);
dsp_node_get_message(self->dsp_handle, self->node, &msg, -1);
dmm_buffer_invalidate(self->out_buffer, self->out_buffer->size);
}
if (self->out_buffer->need_copy) {
memcpy(GST_BUFFER_DATA(out_buf), self->out_buffer->data, GST_BUFFER_SIZE(out_buf));
self->out_buffer->need_copy = false;
}
GST_BUFFER_TIMESTAMP(out_buf) = GST_BUFFER_TIMESTAMP(buf);
ret = gst_pad_push(self->srcpad, out_buf);
leave:
gst_buffer_unref(buf);
return ret;
}
static bool run_task(struct dsp_node *node)
{
char text_send[] = "Hello";
char text_receive[31];
unsigned long exit_status;
struct dsp_msg msg;
struct dmm_buffer *input_buffer;
struct dmm_buffer *output_buffer;
if (!dsp_node_run(dsp_handle, node)) {
pr_err("dsp node run failed");
return false;
}
pr_info("dsp node running");
// init memory
input_buffer = dmm_buffer_new(dsp_handle, proc, DMA_TO_DEVICE);
output_buffer = dmm_buffer_new(dsp_handle, proc, DMA_FROM_DEVICE);
dmm_buffer_allocate(input_buffer, input_buffer_size);
dmm_buffer_allocate(output_buffer, output_buffer_size);
dmm_buffer_map(input_buffer);
dmm_buffer_map(output_buffer);
configure_dsp_node(node, input_buffer, output_buffer);
pr_info("now sending string \"%s\" to DSP", text_send);
// copy data into input buffer
memcpy(input_buffer->data, text_send, strlen(text_send) + 1);
dmm_buffer_begin(input_buffer, input_buffer->size);
dmm_buffer_begin(output_buffer, output_buffer->size);
// tell DSP to do some work
msg.cmd = 1;
msg.arg_1 = input_buffer->size;
dsp_node_put_message(dsp_handle, node, &msg, -1);
dsp_node_get_message(dsp_handle, node, &msg, -1);
if(msg.cmd != 2)
pr_err("returned message has wrong command!");
else
{
memcpy(text_receive, output_buffer->data, 31);
pr_info("received string \"%s\" from DSP", text_receive);
printf("%s\n", text_receive);
}
dmm_buffer_end(input_buffer, input_buffer->size);
dmm_buffer_end(output_buffer, output_buffer->size);
dmm_buffer_unmap(output_buffer);
dmm_buffer_unmap(input_buffer);
dmm_buffer_free(output_buffer);
dmm_buffer_free(input_buffer);
if (!dsp_node_terminate(dsp_handle, node, &exit_status)) {
pr_err("dsp node terminate failed: %lx", exit_status);
return false;
}
pr_info("dsp node terminated");
return true;
}
static bool
run_task(struct dsp_node *node,
unsigned long times)
{
unsigned long exit_status;
dmm_buffer_t *input_buffer;
dmm_buffer_t *output_buffer;
if (!dsp_node_run(dsp_handle, node)) {
pr_err("dsp node run failed");
return false;
}
pr_info("dsp node running");
input_buffer = dmm_buffer_new(dsp_handle, proc, DMA_TO_DEVICE);
output_buffer = dmm_buffer_new(dsp_handle, proc, DMA_FROM_DEVICE);
dmm_buffer_allocate(input_buffer, input_buffer_size);
dmm_buffer_allocate(output_buffer, output_buffer_size);
dmm_buffer_map(output_buffer);
dmm_buffer_map(input_buffer);
configure_dsp_node(node, input_buffer, output_buffer);
pr_info("running %lu times", times);
while (!done) {
struct dsp_msg msg;
#ifdef FILL_DATA
{
static unsigned char foo = 1;
unsigned int i;
for (i = 0; i < input_buffer->size; i++)
((char *) input_buffer->data)[i] = foo;
foo++;
}
#endif
dmm_buffer_begin(input_buffer, input_buffer->size);
dmm_buffer_begin(output_buffer, output_buffer->size);
msg.cmd = 1;
msg.arg_1 = input_buffer->size;
dsp_node_put_message(dsp_handle, node, &msg, -1);
dsp_node_get_message(dsp_handle, node, &msg, -1);
dmm_buffer_end(input_buffer, input_buffer->size);
dmm_buffer_end(output_buffer, output_buffer->size);
if (--times == 0)
break;
}
dmm_buffer_unmap(output_buffer);
dmm_buffer_unmap(input_buffer);
dmm_buffer_free(output_buffer);
dmm_buffer_free(input_buffer);
if (!dsp_node_terminate(dsp_handle, node, &exit_status)) {
pr_err("dsp node terminate failed: %lx", exit_status);
return false;
}
pr_info("dsp node terminated");
return true;
}