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authorAaron Durbin <adurbin@chromium.org>2015-11-24 12:35:06 -0600
committerPatrick Georgi <pgeorgi@google.com>2016-01-15 11:50:25 +0100
commited8a723f4259ddc182b78c2d70930a9cc5266f87 (patch)
tree386320f8993465844b7ef18164eea501fa8c63f0 /src/soc/intel/skylake/include
parent9420a5205c8f9a7a7052c36deb3884a18e632644 (diff)
intel/skylake: add nhlt support
The use of a NHLT table is required to make audio work on the skylake SoCs employing the internal DSP. The table describes the audo endpoints (render vs capture) along with their supported formats. These formats are not only dependent on the audio peripheral but also hardware interfaces. As such each format has an associated blob of DSP settings to make the peripheral work. Lastly, each of these settings are provided by Intel and need to be generated for each device's hardware connection plus mode/format it supports. This patch does not include the dsp setting blobs. The current supported connections: - digital mic array 2 channel - digital mic array 4 channel - Maxim 98357 amplifier - ADI ssm4567 - NAU88L25 headset codec BUG=chrome-os-partner:44481 BRANCH=None TEST=Built glados. Speakers, headphones, and mic on camera decently worked. CQ-DEPEND=CL:*239598 Change-Id: If1a9be97573b9b160893944661790cac7df26fca Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 1f5514e27811c500732de97e1cc7edeced2607e7 Original-Change-Id: Ib42e895f00e7605cb30ce24d9b8dd00bf68a7477 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/313998 Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/12938 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/soc/intel/skylake/include')
-rw-r--r--src/soc/intel/skylake/include/soc/nhlt.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/include/soc/nhlt.h b/src/soc/intel/skylake/include/soc/nhlt.h
new file mode 100644
index 0000000000..3800bb978d
--- /dev/null
+++ b/src/soc/intel/skylake/include/soc/nhlt.h
@@ -0,0 +1,64 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2015 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * 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 _SOC_NHLT_H_
+#define _SOC_NHLT_H_
+
+#include <nhlt.h>
+
+/*
+ * Skylake NHLT device and hardware link types. These values are to be used
+ * with nhlt_soc_add_endpoint().
+ */
+
+enum {
+ AUDIO_LINK_SSP0,
+ AUDIO_LINK_SSP1,
+ AUDIO_LINK_SSP2, /* Only Bluetooth supported on SSP2. */
+ AUDIO_LINK_DMIC,
+};
+
+enum {
+ AUDIO_DEV_I2S,
+ AUDIO_DEV_DMIC,
+ AUDIO_DEV_BT,
+};
+
+/*
+ * Add a dmic array composed of the provided number of channels. The skylake
+ * SoC currently only supports dmic arrays on the dmic signals. Either 2
+ * or 4 channel arrays are supported. Returns 0 on success, < 0 on error.
+ */
+int nhlt_soc_add_dmic_array(struct nhlt *nhlt, int num_channels);
+
+/*
+ * Add nau88l25 headset codec on provided SSP link. Return 0 on succes, < 0
+ * on error.
+ */
+int nhlt_soc_add_nau88l25(struct nhlt *nhlt, int hwlink);
+
+/*
+ * Add ssm4567 smart amplifiers in stereo configuration on provided SSP link.
+ * Return 0 on success, < 0 on error.
+ */
+int nhlt_soc_add_ssm4567(struct nhlt *nhlt, int hwlink);
+
+/*
+ * Add max98357a amplifier in stereo configuration on provide SSP link.
+ * Return 0 on success, < 0 on error.
+ */
+int nhlt_soc_add_max98357(struct nhlt *nhlt, int hwlink);
+
+#endif