1 files changed, 112 insertions, 0 deletions
diff --git a/sound/soc/intel/skylake/cnl-sst-dsp.h b/sound/soc/intel/skylake/cnl-sst-dsp.h
new file mode 100644
index 0000000..09bd218
--- /dev/null
+++ b/sound/soc/intel/skylake/cnl-sst-dsp.h
@@ -0,0 +1,112 @@
+/*
+ * Cannonlake SST DSP Support
+ *
+ * Copyright (C) 2016-17, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+#ifndef __CNL_SST_DSP_H__
+#define __CNL_SST_DSP_H__
+
+struct sst_dsp;
+struct skl_sst;
+struct sst_dsp_device;
+struct sst_generic_ipc;
+
+/* Intel HD Audio General DSP Registers */
+#define CNL_ADSP_GEN_BASE		0x0
+#define CNL_ADSP_REG_ADSPCS		(CNL_ADSP_GEN_BASE + 0x04)
+#define CNL_ADSP_REG_ADSPIC		(CNL_ADSP_GEN_BASE + 0x08)
+#define CNL_ADSP_REG_ADSPIS		(CNL_ADSP_GEN_BASE + 0x0c)
+
+/* Intel HD Audio Inter-Processor Communication Registers */
+#define CNL_ADSP_IPC_BASE               0xc0
+#define CNL_ADSP_REG_HIPCTDR            (CNL_ADSP_IPC_BASE + 0x00)
+#define CNL_ADSP_REG_HIPCTDA            (CNL_ADSP_IPC_BASE + 0x04)
+#define CNL_ADSP_REG_HIPCTDD            (CNL_ADSP_IPC_BASE + 0x08)
+#define CNL_ADSP_REG_HIPCIDR            (CNL_ADSP_IPC_BASE + 0x10)
+#define CNL_ADSP_REG_HIPCIDA            (CNL_ADSP_IPC_BASE + 0x14)
+#define CNL_ADSP_REG_HIPCIDD            (CNL_ADSP_IPC_BASE + 0x18)
+#define CNL_ADSP_REG_HIPCCTL            (CNL_ADSP_IPC_BASE + 0x28)
+
+/* HIPCTDR */
+#define CNL_ADSP_REG_HIPCTDR_BUSY	BIT(31)
+
+/* HIPCTDA */
+#define CNL_ADSP_REG_HIPCTDA_DONE	BIT(31)
+
+/* HIPCIDR */
+#define CNL_ADSP_REG_HIPCIDR_BUSY	BIT(31)
+
+/* HIPCIDA */
+#define CNL_ADSP_REG_HIPCIDA_DONE	BIT(31)
+
+/* CNL HIPCCTL */
+#define CNL_ADSP_REG_HIPCCTL_DONE	BIT(1)
+#define CNL_ADSP_REG_HIPCCTL_BUSY	BIT(0)
+
+/* CNL HIPCT */
+#define CNL_ADSP_REG_HIPCT_BUSY		BIT(31)
+
+/* Intel HD Audio SRAM Window 1 */
+#define CNL_ADSP_SRAM1_BASE		0xa0000
+
+#define CNL_ADSP_MMIO_LEN		0x10000
+
+#define CNL_ADSP_W0_STAT_SZ		0x1000
+
+#define CNL_ADSP_W0_UP_SZ		0x1000
+
+#define CNL_ADSP_W1_SZ			0x1000
+
+#define CNL_FW_STS_MASK			0xf
+
+#define CNL_ADSPIC_IPC			0x1
+#define CNL_ADSPIS_IPC			0x1
+
+#define CNL_DSP_CORES		4
+#define CNL_DSP_CORES_MASK	((1 << CNL_DSP_CORES) - 1)
+
+/* core reset - asserted high */
+#define CNL_ADSPCS_CRST_SHIFT	0
+#define CNL_ADSPCS_CRST(x)	(x << CNL_ADSPCS_CRST_SHIFT)
+
+/* core run/stall - when set to 1 core is stalled */
+#define CNL_ADSPCS_CSTALL_SHIFT	8
+#define CNL_ADSPCS_CSTALL(x)	(x << CNL_ADSPCS_CSTALL_SHIFT)
+
+/* set power active - when set to 1 turn core on */
+#define CNL_ADSPCS_SPA_SHIFT	16
+#define CNL_ADSPCS_SPA(x)	(x << CNL_ADSPCS_SPA_SHIFT)
+
+/* current power active - power status of cores, set by hardware */
+#define CNL_ADSPCS_CPA_SHIFT	24
+#define CNL_ADSPCS_CPA(x)	(x << CNL_ADSPCS_CPA_SHIFT)
+
+int cnl_dsp_enable_core(struct sst_dsp *ctx, unsigned int core);
+int cnl_dsp_disable_core(struct sst_dsp *ctx, unsigned int core);
+irqreturn_t cnl_dsp_sst_interrupt(int irq, void *dev_id);
+void cnl_dsp_free(struct sst_dsp *dsp);
+
+void cnl_ipc_int_enable(struct sst_dsp *ctx);
+void cnl_ipc_int_disable(struct sst_dsp *ctx);
+void cnl_ipc_op_int_enable(struct sst_dsp *ctx);
+void cnl_ipc_op_int_disable(struct sst_dsp *ctx);
+bool cnl_ipc_int_status(struct sst_dsp *ctx);
+void cnl_ipc_free(struct sst_generic_ipc *ipc);
+
+int cnl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
+		     const char *fw_name, struct skl_dsp_loader_ops dsp_ops,
+		     struct skl_sst **dsp);
+int cnl_sst_init_fw(struct device *dev, struct skl_sst *ctx);
+void cnl_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx);
+
+#endif /*__CNL_SST_DSP_H__*/