ASoC: dwc: Add record capability in PIO mode

[sfrench/cifs-2.6.git] / sound / soc / dwc / local.h

diff --git a/sound/soc/dwc/local.h b/sound/soc/dwc/local.h
index 68afd7577343f4d64a74eb26956edfb00053db3f..91dc70a826f8a28ef6063a9ffec859cfbd385540 100644 (file)
--- a/sound/soc/dwc/local.h
+++ b/sound/soc/dwc/local.h
@@ -105,20 +105,27 @@ struct dw_i2s_dev {
        struct i2s_clk_config_data config;
        int (*i2s_clk_cfg)(struct i2s_clk_config_data *config);
 
-       /* data related to PIO transfers (TX) */
+       /* data related to PIO transfers */
        bool use_pio;
        struct snd_pcm_substream __rcu *tx_substream;
+       struct snd_pcm_substream __rcu *rx_substream;
        unsigned int (*tx_fn)(struct dw_i2s_dev *dev,
                        struct snd_pcm_runtime *runtime, unsigned int tx_ptr,
                        bool *period_elapsed);
+       unsigned int (*rx_fn)(struct dw_i2s_dev *dev,
+                       struct snd_pcm_runtime *runtime, unsigned int rx_ptr,
+                       bool *period_elapsed);
        unsigned int tx_ptr;
+       unsigned int rx_ptr;
 };
 
 #if IS_ENABLED(CONFIG_SND_DESIGNWARE_PCM)
 void dw_pcm_push_tx(struct dw_i2s_dev *dev);
+void dw_pcm_pop_rx(struct dw_i2s_dev *dev);
 int dw_pcm_register(struct platform_device *pdev);
 #else
 void dw_pcm_push_tx(struct dw_i2s_dev *dev) { }
+void dw_pcm_pop_rx(struct dw_i2s_dev *dev) { }
 int dw_pcm_register(struct platform_device *pdev)
 {
        return -EINVAL;