[alsa-devel] [RFC v4 1/9] ASoC: Intel: Boards: Machine driver for Intel platforms
Rakesh Ughreja
rakesh.a.ughreja at intel.com
Fri Dec 22 13:52:44 CET 2017
Add machine driver for Intel platforms (SKL/KBL) with HDA and iDisp codecs.
This patch adds support for only iDisp (HDMI/DP) codec. In the
following patch support for HDA codec will be added.
This should work for other Intel platforms as well e.g. BXT,GLK,CNL
however this series is not tested on all the platforms.
Signed-off-by: Rakesh Ughreja <rakesh.a.ughreja at intel.com>
---
sound/soc/intel/boards/Kconfig | 10 +++
sound/soc/intel/boards/Makefile | 2 +
sound/soc/intel/boards/skl_hda_dsp_common.c | 120 +++++++++++++++++++++++++++
sound/soc/intel/boards/skl_hda_dsp_common.h | 34 ++++++++
sound/soc/intel/boards/skl_hda_dsp_generic.c | 103 +++++++++++++++++++++++
5 files changed, 269 insertions(+)
create mode 100644 sound/soc/intel/boards/skl_hda_dsp_common.c
create mode 100644 sound/soc/intel/boards/skl_hda_dsp_common.h
create mode 100644 sound/soc/intel/boards/skl_hda_dsp_generic.c
diff --git a/sound/soc/intel/boards/Kconfig b/sound/soc/intel/boards/Kconfig
index 6f75470..e01137d 100644
--- a/sound/soc/intel/boards/Kconfig
+++ b/sound/soc/intel/boards/Kconfig
@@ -262,4 +262,14 @@ config SND_SOC_INTEL_KBL_RT5663_RT5514_MAX98927_MACH
Say Y if you have such a device.
If unsure select "N".
+config SND_SOC_INTEL_SKL_HDA_DSP_GENERIC_MACH
+ tristate "ASoC Audio driver for SKL/KBL with HDA Codecs"
+ select SND_SOC_INTEL_SST
+ depends on SND_SOC_INTEL_SKYLAKE
+ select SND_SOC_HDAC_HDMI
+ help
+ This adds support for ASoC Onboard Codec HDA machine driver. This will
+ create an alsa sound card for HDA Codecs.
+ Say Y if you have such a device.
+ If unsure select "N".
endif
diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile
index 69d2dfa..7f6ab8e 100644
--- a/sound/soc/intel/boards/Makefile
+++ b/sound/soc/intel/boards/Makefile
@@ -17,6 +17,7 @@ snd-soc-sst-byt-cht-nocodec-objs := bytcht_nocodec.o
snd-soc-kbl_rt5663_max98927-objs := kbl_rt5663_max98927.o
snd-soc-kbl_rt5663_rt5514_max98927-objs := kbl_rt5663_rt5514_max98927.o
snd-soc-skl_rt286-objs := skl_rt286.o
+snd-soc-skl_hda_dsp-objs := skl_hda_dsp_generic.o skl_hda_dsp_common.o
snd-skl_nau88l25_max98357a-objs := skl_nau88l25_max98357a.o
snd-soc-skl_nau88l25_ssm4567-objs := skl_nau88l25_ssm4567.o
@@ -40,3 +41,4 @@ obj-$(CONFIG_SND_SOC_INTEL_KBL_RT5663_RT5514_MAX98927_MACH) += snd-soc-kbl_rt566
obj-$(CONFIG_SND_SOC_INTEL_SKL_RT286_MACH) += snd-soc-skl_rt286.o
obj-$(CONFIG_SND_SOC_INTEL_SKL_NAU88L25_MAX98357A_MACH) += snd-skl_nau88l25_max98357a.o
obj-$(CONFIG_SND_SOC_INTEL_SKL_NAU88L25_SSM4567_MACH) += snd-soc-skl_nau88l25_ssm4567.o
+obj-$(CONFIG_SND_SOC_INTEL_SKL_HDA_DSP_GENERIC_MACH) += snd-soc-skl_hda_dsp.o
diff --git a/sound/soc/intel/boards/skl_hda_dsp_common.c b/sound/soc/intel/boards/skl_hda_dsp_common.c
new file mode 100644
index 0000000..5933902
--- /dev/null
+++ b/sound/soc/intel/boards/skl_hda_dsp_common.c
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright(c) 2015-17 Intel Corporation.
+
+/*
+ * Common functions used in different Intel machine drivers
+ */
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include "../../codecs/hdac_hdmi.h"
+#include "../skylake/skl.h"
+#include "skl_hda_dsp_common.h"
+
+#define NAME_SIZE 32
+
+static struct snd_soc_dai *skl_hda_get_codec_dai(struct snd_soc_card *card,
+ const char *dai_name)
+{
+ struct snd_soc_pcm_runtime *rtd;
+
+ list_for_each_entry(rtd, &card->rtd_list, list) {
+ if (!strcmp(rtd->codec_dai->name, dai_name))
+ return rtd->codec_dai;
+ }
+
+ return NULL;
+}
+
+int skl_hda_hdmi_add_pcm(struct snd_soc_card *card, int device)
+{
+ char dai_name[NAME_SIZE];
+ struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card);
+ struct skl_hda_hdmi_pcm *pcm;
+ static int i = 1; /* hdmi codec dai name starts from index 1 */
+
+ pcm = devm_kzalloc(card->dev, sizeof(*pcm), GFP_KERNEL);
+ if (!pcm)
+ return -ENOMEM;
+
+ snprintf(dai_name, sizeof(dai_name), "intel-hdmi-hifi%d", i++);
+ pcm->codec_dai = skl_hda_get_codec_dai(card, dai_name);
+ if (!pcm->codec_dai)
+ return -EINVAL;
+
+ pcm->device = device;
+ list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
+
+ return 0;
+}
+
+/* skl_hda_digital audio interface glue - connects codec <--> CPU */
+struct snd_soc_dai_link skl_hda_be_dai_links[HDA_DSP_MAX_BE_DAI_LINKS] = {
+
+ /* Back End DAI links */
+ {
+ .name = "iDisp1",
+ .id = 1,
+ .cpu_dai_name = "iDisp1 Pin",
+ .codec_name = "ehdaudio0D2",
+ .codec_dai_name = "intel-hdmi-hifi1",
+ .platform_name = "0000:00:1f.3",
+ .dpcm_playback = 1,
+ .no_pcm = 1,
+ },
+ {
+ .name = "iDisp2",
+ .id = 2,
+ .cpu_dai_name = "iDisp2 Pin",
+ .codec_name = "ehdaudio0D2",
+ .codec_dai_name = "intel-hdmi-hifi2",
+ .platform_name = "0000:00:1f.3",
+ .dpcm_playback = 1,
+ .no_pcm = 1,
+ },
+ {
+ .name = "iDisp3",
+ .id = 3,
+ .cpu_dai_name = "iDisp3 Pin",
+ .codec_name = "ehdaudio0D2",
+ .codec_dai_name = "intel-hdmi-hifi3",
+ .platform_name = "0000:00:1f.3",
+ .dpcm_playback = 1,
+ .no_pcm = 1,
+ },
+};
+
+int skl_hda_hdmi_jack_init(struct snd_soc_card *card)
+{
+ struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card);
+ struct skl_hda_hdmi_pcm *pcm;
+ struct snd_soc_codec *codec = NULL;
+ int err;
+ char jack_name[NAME_SIZE];
+
+ list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
+ codec = pcm->codec_dai->codec;
+ snprintf(jack_name, sizeof(jack_name),
+ "HDMI/DP, pcm=%d Jack", pcm->device);
+ err = snd_soc_card_jack_new(card, jack_name,
+ SND_JACK_AVOUT, &pcm->hdmi_jack,
+ NULL, 0);
+
+ if (err)
+ return err;
+
+ err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
+ &pcm->hdmi_jack);
+ if (err < 0)
+ return err;
+ }
+
+ if (!codec)
+ return -EINVAL;
+
+ return hdac_hdmi_jack_port_init(codec, &card->dapm);
+}
diff --git a/sound/soc/intel/boards/skl_hda_dsp_common.h b/sound/soc/intel/boards/skl_hda_dsp_common.h
new file mode 100644
index 0000000..203d527
--- /dev/null
+++ b/sound/soc/intel/boards/skl_hda_dsp_common.h
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright(c) 2015-17 Intel Corporation.
+
+/*
+ * This file defines data structures used in Machine Driver for Intel
+ * platforms with HDA Codecs.
+ */
+
+#ifndef __SOUND_SOC_HDA_DSP_COMMON_H
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#define __SOUND_SOC_HDA_DSP_COMMON_H
+
+#define HDA_DSP_MAX_BE_DAI_LINKS 3
+
+struct skl_hda_hdmi_pcm {
+ struct list_head head;
+ struct snd_soc_dai *codec_dai;
+ struct snd_soc_jack hdmi_jack;
+ int device;
+};
+
+struct skl_hda_private {
+ struct list_head hdmi_pcm_list;
+ int pcm_count;
+};
+
+extern struct snd_soc_dai_link skl_hda_be_dai_links[HDA_DSP_MAX_BE_DAI_LINKS];
+int skl_hda_hdmi_jack_init(struct snd_soc_card *card);
+int skl_hda_hdmi_add_pcm(struct snd_soc_card *card, int device);
+
+#endif /* __SOUND_SOC_HDA_DSP_COMMON_H */
diff --git a/sound/soc/intel/boards/skl_hda_dsp_generic.c b/sound/soc/intel/boards/skl_hda_dsp_generic.c
new file mode 100644
index 0000000..07f4eed
--- /dev/null
+++ b/sound/soc/intel/boards/skl_hda_dsp_generic.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright(c) 2015-17 Intel Corporation.
+
+/*
+ * Machine Driver for SKL/KBL platforms with HDA Codecs
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include "../../codecs/hdac_hdmi.h"
+#include "../skylake/skl.h"
+#include "skl_hda_dsp_common.h"
+
+static const struct snd_soc_dapm_route skl_hda_map[] = {
+
+ { "hifi3", NULL, "iDisp3 Tx"},
+ { "iDisp3 Tx", NULL, "iDisp3_out"},
+ { "hifi2", NULL, "iDisp2 Tx"},
+ { "iDisp2 Tx", NULL, "iDisp2_out"},
+ { "hifi1", NULL, "iDisp1 Tx"},
+ { "iDisp1 Tx", NULL, "iDisp1_out"},
+
+};
+
+static int skl_hda_card_late_probe(struct snd_soc_card *card)
+{
+ return skl_hda_hdmi_jack_init(card);
+}
+
+static int
+skl_hda_add_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *link)
+{
+ struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card);
+ int ret = 0;
+
+ dev_dbg(card->dev, "%s: dai link name - %s\n", __func__, link->name);
+ link->platform_name = "0000:00:1f.3";
+ link->nonatomic = 1;
+
+ if (strstr(link->name, "HDMI"))
+ ret = skl_hda_hdmi_add_pcm(card, ctx->pcm_count);
+ ctx->pcm_count++;
+
+ return ret;
+}
+
+static struct snd_soc_card hda_soc_card = {
+ .name = "skl_hda_card",
+ .owner = THIS_MODULE,
+ .dai_link = skl_hda_be_dai_links,
+ .num_links = ARRAY_SIZE(skl_hda_be_dai_links),
+ .dapm_routes = skl_hda_map,
+ .num_dapm_routes = ARRAY_SIZE(skl_hda_map),
+ .add_dai_link = skl_hda_add_dai_link,
+ .fully_routed = true,
+ .late_probe = skl_hda_card_late_probe,
+};
+
+static int skl_hda_audio_probe(struct platform_device *pdev)
+{
+ struct skl_hda_private *ctx;
+
+ dev_dbg(&pdev->dev, "%s: machine driver probe got called\n", __func__);
+
+ ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC);
+ if (!ctx)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
+ ctx->pcm_count = ARRAY_SIZE(skl_hda_be_dai_links);
+
+ hda_soc_card.dev = &pdev->dev;
+ snd_soc_card_set_drvdata(&hda_soc_card, ctx);
+
+ return devm_snd_soc_register_card(&pdev->dev, &hda_soc_card);
+}
+
+static const struct platform_device_id skl_hda_board_ids[] = {
+ { .name = "skl_hda_generic" },
+ { }
+};
+
+static struct platform_driver skl_hda_audio = {
+ .probe = skl_hda_audio_probe,
+ .driver = {
+ .name = "skl_hda_generic",
+ .pm = &snd_soc_pm_ops,
+ },
+ .id_table = skl_hda_board_ids,
+};
+
+module_platform_driver(skl_hda_audio)
+
+/* Module information */
+MODULE_DESCRIPTION("SKL/KBL HDA Generic Machine driver");
+MODULE_AUTHOR("Rakesh Ughreja <rakesh.a.ughreja at intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:skl_hda_generic");
--
2.7.4
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