ALSA: hda - Add new DSP loader callback routines

Pass DMA buffer pointers in calls to setup_bdle().
Add DSP loader callback routines to controller.
Add new DSP loader switch to Kconfig to turn off DSP firmware.

Signed-off-by: Ian Minett <ian_minett@creativelabs.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 45 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 507fe8a917b6..c218bf41261a 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -618,6 +618,17 @@ struct hda_bus_ops {
         /* notify power-up/down from codec to controller */
         void (*pm_notify)(struct hda_bus *bus, bool power_up);
 #endif
+#ifdef CONFIG_SND_HDA_DSP_LOADER
+        /* prepare DSP transfer */
+        int (*load_dsp_prepare)(struct hda_bus *bus, unsigned int format,
+                                unsigned int byte_size,
+                                struct snd_dma_buffer *bufp);
+        /* start/stop DSP transfer */
+        void (*load_dsp_trigger)(struct hda_bus *bus, bool start);
+        /* clean up DSP transfer */
+        void (*load_dsp_cleanup)(struct hda_bus *bus,
+                                 struct snd_dma_buffer *dmab);
+#endif
 };
 
 /* template to pass to the bus constructor */
@@ -1129,6 +1140,40 @@ static inline void snd_hda_power_sync(struct hda_codec *codec)
 int snd_hda_load_patch(struct hda_bus *bus, size_t size, const void *buf);
 #endif
 
+#ifdef CONFIG_SND_HDA_DSP_LOADER
+static inline int
+snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
+                                unsigned int size,
+                                struct snd_dma_buffer *bufp)
+{
+        return codec->bus->ops.load_dsp_prepare(codec->bus, format, size, bufp);
+}
+static inline void
+snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start)
+{
+        return codec->bus->ops.load_dsp_trigger(codec->bus, start);
+}
+static inline void
+snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
+                                struct snd_dma_buffer *dmab)
+{
+        return codec->bus->ops.load_dsp_cleanup(codec->bus, dmab);
+}
+#else
+static inline int
+snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
+                                unsigned int size,
+                                struct snd_dma_buffer *bufp)
+{
+        return 0;
+}
+static inline void
+snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start) {}
+static inline void
+snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
+                                struct snd_dma_buffer *dmab) {}
+#endif
+
 /*
  * Codec modularization
  */