C++ (Cpp) iwl_tfd_tb_get_addrの例

コード例 #1

ファイル: iwl-trans-tx-pcie.c プロジェクト: Lutin83/linux

static void iwlagn_unmap_tfd(struct iwl_priv *priv, struct iwl_cmd_meta *meta,
		     struct iwl_tfd *tfd, enum dma_data_direction dma_dir)
{
	int i;
	int num_tbs;

	/* Sanity check on number of chunks */
	num_tbs = iwl_tfd_get_num_tbs(tfd);

	if (num_tbs >= IWL_NUM_OF_TBS) {
		IWL_ERR(priv, "Too many chunks: %i\n", num_tbs);
		/* @todo issue fatal error, it is quite serious situation */
		return;
	}

	/* Unmap tx_cmd */
	if (num_tbs)
		dma_unmap_single(priv->bus->dev,
				dma_unmap_addr(meta, mapping),
				dma_unmap_len(meta, len),
				DMA_BIDIRECTIONAL);

	/* Unmap chunks, if any. */
	for (i = 1; i < num_tbs; i++)
		dma_unmap_single(priv->bus->dev, iwl_tfd_tb_get_addr(tfd, i),
				iwl_tfd_tb_get_len(tfd, i), dma_dir);
}

コード例 #2

ファイル: iwl-trans-pcie-tx.c プロジェクト: mjduddin/B14CKB1RD_kernel_m8

static void iwlagn_unmap_tfd(struct iwl_trans *trans, struct iwl_cmd_meta *meta,
		     struct iwl_tfd *tfd, enum dma_data_direction dma_dir)
{
	int i;
	int num_tbs;

	
	num_tbs = iwl_tfd_get_num_tbs(tfd);

	if (num_tbs >= IWL_NUM_OF_TBS) {
		IWL_ERR(trans, "Too many chunks: %i\n", num_tbs);
		
		return;
	}

	
	if (num_tbs)
		dma_unmap_single(trans->dev,
				dma_unmap_addr(meta, mapping),
				dma_unmap_len(meta, len),
				DMA_BIDIRECTIONAL);

	
	for (i = 1; i < num_tbs; i++)
		dma_unmap_single(trans->dev, iwl_tfd_tb_get_addr(tfd, i),
				iwl_tfd_tb_get_len(tfd, i), dma_dir);
}