/* No private data for IPC */
void ipc_platform_do_cmd(struct ipc *ipc)
{
struct sof_ipc_reply reply;
int32_t err;
/* perform command and return any error */
err = ipc_cmd();
if (err > 0) {
mailbox_hostbox_read(&reply, SOF_IPC_MSG_MAX_SIZE,
0, sizeof(reply));
goto done; /* reply created and copied by cmd() */
} else if (err < 0) {
/* send std error reply */
reply.error = err;
} else if (err == 0) {
/* send std reply */
reply.error = 0;
}
/* send std error/ok reply */
reply.hdr.cmd = SOF_IPC_GLB_REPLY;
reply.hdr.size = sizeof(reply);
done:
spi_push(spi_get(SOF_SPI_INTEL_SLAVE), &reply, sizeof(reply));
ipc->host_pending = 0;
// TODO: signal audio work to enter D3 in normal context
/* are we about to enter D3 ? */
if (ipc->pm_prepare_D3) {
while (1)
wait_for_interrupt(0);
}
}
/*
* IPC main loop.
* Just wait for data on the fds provided, then trigger ipc_cmd().
*/
static void *
ipc_loop(void *data)
{
struct ipc_t *ipc = (struct ipc_t *)data;
struct pollfd fds[MAX_LISTENERS+1];
int i;
int ret;
for (i=0; i < ipc->nlisteners; i ++) {
fds[i].fd = ipc->listeners[i];
fds[i].events = POLLIN;
}
while (1) {
ret = poll(fds, ipc->nlisteners, -1);
if (ret == -1 && errno == EINTR)
continue;
assert(ret > 0);
for (i=0; i < ipc->nlisteners; i++) {
if (fds[i].revents & POLLIN) {
ipc_cmd(fds[i].fd, ipc);
}
}
}
return NULL;
}
