1 files changed, 61 insertions, 0 deletions
diff --git a/sound/soc/intel/common/sst-dsp.h b/sound/soc/intel/common/sst-dsp.h
new file mode 100644
index 000000000..f111fd3f3
--- /dev/null
+++ b/sound/soc/intel/common/sst-dsp.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Intel Smart Sound Technology (SST) Core
+ *
+ * Copyright (C) 2013, Intel Corporation. All rights reserved.
+ */
+
+#ifndef __SOUND_SOC_SST_DSP_H
+#define __SOUND_SOC_SST_DSP_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+
+struct sst_dsp;
+
+/*
+ * SST Device.
+ *
+ * This structure is populated by the SST core driver.
+ */
+struct sst_dsp_device {
+	/* Mandatory fields */
+	struct sst_ops *ops;
+	irqreturn_t (*thread)(int irq, void *context);
+	void *thread_context;
+};
+
+/* SHIM Read / Write */
+void sst_dsp_shim_write(struct sst_dsp *sst, u32 offset, u32 value);
+u32 sst_dsp_shim_read(struct sst_dsp *sst, u32 offset);
+int sst_dsp_shim_update_bits(struct sst_dsp *sst, u32 offset,
+				u32 mask, u32 value);
+void sst_dsp_shim_update_bits_forced(struct sst_dsp *sst, u32 offset,
+				u32 mask, u32 value);
+
+/* SHIM Read / Write Unlocked for callers already holding sst lock */
+void sst_dsp_shim_write_unlocked(struct sst_dsp *sst, u32 offset, u32 value);
+u32 sst_dsp_shim_read_unlocked(struct sst_dsp *sst, u32 offset);
+int sst_dsp_shim_update_bits_unlocked(struct sst_dsp *sst, u32 offset,
+				u32 mask, u32 value);
+void sst_dsp_shim_update_bits_forced_unlocked(struct sst_dsp *sst, u32 offset,
+				u32 mask, u32 value);
+
+/* Internal generic low-level SST IO functions - can be overidden */
+void sst_shim32_write(void __iomem *addr, u32 offset, u32 value);
+u32 sst_shim32_read(void __iomem *addr, u32 offset);
+void sst_shim32_write64(void __iomem *addr, u32 offset, u64 value);
+u64 sst_shim32_read64(void __iomem *addr, u32 offset);
+
+/* Mailbox management */
+int sst_dsp_mailbox_init(struct sst_dsp *sst, u32 inbox_offset,
+	size_t inbox_size, u32 outbox_offset, size_t outbox_size);
+void sst_dsp_inbox_write(struct sst_dsp *sst, void *message, size_t bytes);
+void sst_dsp_inbox_read(struct sst_dsp *sst, void *message, size_t bytes);
+void sst_dsp_outbox_write(struct sst_dsp *sst, void *message, size_t bytes);
+void sst_dsp_outbox_read(struct sst_dsp *sst, void *message, size_t bytes);
+int sst_dsp_register_poll(struct sst_dsp  *ctx, u32 offset, u32 mask,
+		 u32 target, u32 time, char *operation);
+
+#endif