C++ (Cpp) sst_load_fw Examples

Example #1

/*
 * sst_download_fw - download the audio firmware to DSP
 *
 * This function is called when the FW needs to be downloaded to SST DSP engine
 */
int sst_download_fw(void)
{
	int retval;
	const struct firmware *fw_sst;
	char name[20];

	if (sst_drv_ctx->sst_state != SST_UN_INIT)
		return -EPERM;

	snprintf(name, sizeof(name), "%s%04x%s", "fw_sst_",
					sst_drv_ctx->pci_id, ".bin");

	pr_debug("Downloading %s FW now...\n", name);
	retval = request_firmware(&fw_sst, name, &sst_drv_ctx->pci->dev);
	if (retval) {
		pr_err("request fw failed %d\n", retval);
		return retval;
	}
	sst_drv_ctx->alloc_block[0].sst_id = FW_DWNL_ID;
	sst_drv_ctx->alloc_block[0].ops_block.condition = false;
	retval = sst_load_fw(fw_sst, NULL);
	if (retval)
		goto end_restore;

	retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[0]);
	if (retval)
		pr_err("fw download failed %d\n" , retval);
end_restore:
	release_firmware(fw_sst);
	sst_drv_ctx->alloc_block[0].sst_id = BLOCK_UNINIT;
	return retval;
}

Example #2

File: intel_sst_drv_interface.c Project: CSCLOG/beaglebone

/*
 * sst_download_fw - download the audio firmware to DSP
 *
 * This function is called when the FW needs to be downloaded to SST DSP engine
 */
int sst_download_fw(void)
{
	int retval;
	const struct firmware *fw_sst;
	char name[20];

	if (sst_drv_ctx->sst_state != SST_UN_INIT)
		return -EPERM;

	/* Reload firmware is not needed for MRST */
	if ( (sst_drv_ctx->pci_id == SST_MRST_PCI_ID) && sst_drv_ctx->fw_downloaded) {
		pr_debug("FW already downloaded, skip for MRST platform\n");
		sst_drv_ctx->sst_state = SST_FW_RUNNING;
		return 0;
	}

	snprintf(name, sizeof(name), "%s%04x%s", "fw_sst_",
					sst_drv_ctx->pci_id, ".bin");

	pr_debug("Downloading %s FW now...\n", name);
	retval = request_firmware(&fw_sst, name, &sst_drv_ctx->pci->dev);
	if (retval) {
		pr_err("request fw failed %d\n", retval);
		return retval;
	}
	sst_drv_ctx->alloc_block[0].sst_id = FW_DWNL_ID;
	sst_drv_ctx->alloc_block[0].ops_block.condition = false;
	retval = sst_load_fw(fw_sst, NULL);
	if (retval)
		goto end_restore;

	retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[0]);
	if (retval)
		pr_err("fw download failed %d\n" , retval);
	else
		sst_drv_ctx->fw_downloaded = 1;

end_restore:
	release_firmware(fw_sst);
	sst_drv_ctx->alloc_block[0].sst_id = BLOCK_UNINIT;
	return retval;
}