ASoC: Intel: Skylake: Add support for Loadable modules

A module is loaded when the path consisting the module is opened.
The module binary(ies) is loaded from file system and cached in
kernel memory for future use. This is downloaded to DSP using DMA
and invoking Load module IPCs

This patch adds support for load/unload module IPCs, DMAing
modules and manging the modules

Signed-off-by: Dharageswari R <dharageswari.r@intel.com>
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/sound/soc/intel/skylake/skl-sst-dsp.h b/sound/soc/intel/skylake/skl-sst-dsp.h
index f2a69d9e56b3..5d0947935e2b 100644
--- a/sound/soc/intel/skylake/skl-sst-dsp.h
+++ b/sound/soc/intel/skylake/skl-sst-dsp.h
@@ -114,6 +114,9 @@ struct skl_dsp_fw_ops {
 	int (*set_state_D0)(struct sst_dsp *ctx);
 	int (*set_state_D3)(struct sst_dsp *ctx);
 	unsigned int (*get_fw_errcode)(struct sst_dsp *ctx);
+	int (*load_mod)(struct sst_dsp *ctx, u16 mod_id, char *mod_name);
+	int (*unload_mod)(struct sst_dsp *ctx, u16 mod_id);
+
 };
 
 struct skl_dsp_loader_ops {
@@ -123,6 +126,17 @@ struct skl_dsp_loader_ops {
 		struct snd_dma_buffer *dmab);
 };
 
+struct skl_load_module_info {
+	u16 mod_id;
+	const struct firmware *fw;
+};
+
+struct skl_module_table {
+	struct skl_load_module_info *mod_info;
+	unsigned int usage_cnt;
+	struct list_head list;
+};
+
 void skl_cldma_process_intr(struct sst_dsp *ctx);
 void skl_cldma_int_disable(struct sst_dsp *ctx);
 int skl_cldma_prepare(struct sst_dsp *ctx);