From 85a333db74aa1642db6aaadfececbe29dd82e115 Mon Sep 17 00:00:00 2001
From: Slawomir Blauciak <slawomir.blauciak@linux.intel.com>
Date: Wed, 2 Oct 2019 13:12:21 +0200
Subject: [PATCH] tigerlake: enable alh and supply headers

This change adds ALH support for Tiger Lake platforms
and enables it by default.

Signed-off-by: Slawomir Blauciak <slawomir.blauciak@linux.intel.com>
---
 src/arch/xtensa/configs/tigerlake_defconfig   |  1 +
 .../tigerlake/include/platform/drivers/alh.h  | 92 +++++++++++++++++++
 .../tigerlake/include/platform/lib/dai.h      |  8 ++
 .../tigerlake/include/platform/lib/memory.h   |  6 ++
 4 files changed, 107 insertions(+)
 create mode 100644 src/platform/tigerlake/include/platform/drivers/alh.h

diff --git a/src/arch/xtensa/configs/tigerlake_defconfig b/src/arch/xtensa/configs/tigerlake_defconfig
index 35d820516..18e9e22d9 100644
--- a/src/arch/xtensa/configs/tigerlake_defconfig
+++ b/src/arch/xtensa/configs/tigerlake_defconfig
@@ -1,6 +1,7 @@
 CONFIG_TIGERLAKE=y
 CONFIG_CAVS_DMIC=y
 CONFIG_CAVS_SSP=y
+CONFIG_CAVS_ALH=y
 CONFIG_CORE_COUNT=4
 CONFIG_LP_MEMORY_BANKS=1
 CONFIG_HP_MEMORY_BANKS=46
diff --git a/src/platform/tigerlake/include/platform/drivers/alh.h b/src/platform/tigerlake/include/platform/drivers/alh.h
new file mode 100644
index 000000000..c2380eba4
--- /dev/null
+++ b/src/platform/tigerlake/include/platform/drivers/alh.h
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright(c) 2019 Intel Corporation. All rights reserved.
+//
+// Author: Slawomir Blauciak <slawomir.blauciak@linux.intel.com>
+
+#ifdef __SOF_DRIVERS_ALH__
+
+#ifndef __PLATFORM_DRIVERS_ALH__
+#define __PLATFORM_DRIVERS_ALH__
+
+#include <stdint.h>
+
+/**
+ * \brief ALH Handshakes for audio I/O
+ * Stream ID -> DMA Handshake map
+ * -1 identifies invalid handshakes/streams
+ */
+static const uint8_t alh_handshake_map[64] = {
+	-1,	/* 0  - INVALID */
+	-1,	/* 1  - INVALID */
+	-1,	/* 2  - INVALID */
+	-1,	/* 3  - INVALID */
+	-1,	/* 4  - INVALID */
+	-1,	/* 5  - INVALID */
+	-1,	/* 6  - INVALID */
+	22,	/* 7  - BIDIRECTIONAL */
+	23,	/* 8  - BIDIRECTIONAL */
+	24,	/* 9  - BIDIRECTIONAL */
+	25,	/* 10 - BIDIRECTIONAL */
+	-1,	/* 5  - INVALID */
+	-1,	/* 6  - INVALID */
+	-1,	/* 13 - INVALID */
+	-1,	/* 14 - INVALID */
+	-1,	/* 15 - INVALID */
+	-1,	/* 16 - INVALID */
+	-1,	/* 17 - INVALID */
+	-1,	/* 18 - INVALID */
+	-1,	/* 19 - INVALID */
+	-1,	/* 20 - INVALID */
+	-1,	/* 21 - INVALID */
+	-1,	/* 22 - INVALID */
+	32,	/* 23 - BIDIRECTIONAL */
+	33,	/* 24 - BIDIRECTIONAL */
+	34,	/* 25 - BIDIRECTIONAL */
+	35,	/* 26 - BIDIRECTIONAL */
+	-1,	/* 5  - INVALID */
+	-1,	/* 6  - INVALID */
+	-1,	/* 29 - INVALID */
+	-1,	/* 30 - INVALID */
+	-1,	/* 31 - INVALID */
+	-1,	/* 32 - INVALID */
+	-1,	/* 33 - INVALID */
+	-1,	/* 34 - INVALID */
+	-1,	/* 35 - INVALID */
+	-1,	/* 36 - INVALID */
+	-1,	/* 37 - INVALID */
+	-1,	/* 38 - INVALID */
+	42,	/* 39 - BIDIRECTIONAL */
+	43,	/* 40 - BIDIRECTIONAL */
+	44,	/* 41 - BIDIRECTIONAL */
+	45,	/* 42 - BIDIRECTIONAL */
+	-1,	/* 5  - INVALID */
+	-1,	/* 6  - INVALID */
+	-1,	/* 45 - INVALID */
+	-1,	/* 46 - INVALID */
+	-1,	/* 47 - INVALID */
+	-1,	/* 48 - INVALID */
+	-1,	/* 49 - INVALID */
+	-1,	/* 50 - INVALID */
+	-1,	/* 51 - INVALID */
+	-1,	/* 52 - INVALID */
+	-1,	/* 53 - INVALID */
+	-1,	/* 54 - INVALID */
+	52,	/* 55 - BIDIRECTIONAL */
+	53,	/* 56 - BIDIRECTIONAL */
+	54,	/* 57 - BIDIRECTIONAL */
+	55,	/* 58 - BIDIRECTIONAL */
+	-1,	/* 5  - INVALID */
+	-1,	/* 6  - INVALID */
+	-1,	/* 61 - INVALID */
+	-1,	/* 62 - INVALID */
+	-1,	/* 63 - INVALID */
+};
+
+#endif /* __PLATFORM_DRIVERS_ALH__ */
+
+#else
+
+#error "This file shouldn't be included from outside of sof/drivers/alh.h"
+
+#endif
diff --git a/src/platform/tigerlake/include/platform/lib/dai.h b/src/platform/tigerlake/include/platform/lib/dai.h
index 3601accac..cf6e85086 100644
--- a/src/platform/tigerlake/include/platform/lib/dai.h
+++ b/src/platform/tigerlake/include/platform/lib/dai.h
@@ -34,6 +34,14 @@
 /** \brief Number of HD/A Link Inputs */
 #define DAI_NUM_HDA_IN		7
 
+/* ALH */
+
+/** \brief Number of ALH bi-directional links */
+#define DAI_NUM_ALH_BI_DIR_LINKS	16
+
+/** \brief Number of contiguous ALH bi-dir links */
+#define DAI_NUM_ALH_BI_DIR_LINKS_GROUP	4
+
 int dai_init(void);
 
 #endif /* __PLATFORM_LIB_DAI_H__ */
diff --git a/src/platform/tigerlake/include/platform/lib/memory.h b/src/platform/tigerlake/include/platform/lib/memory.h
index 07f9a2f90..75fb4f42d 100644
--- a/src/platform/tigerlake/include/platform/lib/memory.h
+++ b/src/platform/tigerlake/include/platform/lib/memory.h
@@ -101,6 +101,12 @@
 #define SSP_BASE(x)		(0x00077000 + x * SSP_SIZE)
 #define SSP_SIZE		0x0000200
 
+/* ALH */
+#define ALH_BASE		0x000071000
+#define ALH_TXDA_OFFSET		0x000000400
+#define ALH_RXDA_OFFSET		0x000000500
+#define ALH_STREAM_OFFSET	0x000000004
+
 /* low power DMACs */
 #define LP_GP_DMA_SIZE		0x00001000
 #define LP_GP_DMA_BASE(x)	(0x0007C000 + x * LP_GP_DMA_SIZE)