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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Hardik T Shah <hardik.t.shah@intel.com>
Date: Sat, 23 Apr 2016 18:58:44 +0530
Subject: [PATCH] ASoC:Intel: Add machine driver for SoundWire SV PDM Codec.
This patch is for testing. Not to be upstreamed.
Change-Id: Ia92c5543d94fb3ac045f8c13414b9af3ffa8d7d3
Signed-off-by: Hardik T Shah <hardik.t.shah@intel.com>
Reviewed-on:
---
sound/soc/intel/boards/Kconfig | 11 ++
sound/soc/intel/boards/Makefile | 2 +
sound/soc/intel/boards/cnl_svfpga.c | 273 ++++++++++++++++++++++++++++
3 files changed, 286 insertions(+)
create mode 100644 sound/soc/intel/boards/cnl_svfpga.c
diff --git a/sound/soc/intel/boards/Kconfig b/sound/soc/intel/boards/Kconfig
index 35787e6..ca140a7 100644
--- a/sound/soc/intel/boards/Kconfig
+++ b/sound/soc/intel/boards/Kconfig
@@ -306,6 +306,17 @@ config SND_SOC_INTEL_CNL_CS42L42_MACH
Say Y or m if you have such a device. This is a recommended option.
If unsure select "N".
+config SND_SOC_INTEL_CNL_SVFPGA_MACH
+ tristate "Cannonlake with SVFPGA PDM SDW mode"
+ depends on MFD_INTEL_LPSS && I2C && ACPI
+ select SND_SOC_SVFPGA
+ select SND_SOC_DMIC
+ help
+ This adds support for ASoC SVFPGA PDM codec SDW machine driver. This
+ will create an alsa sound card for SVFPGA.
+ Say Y or m if you have such a device. This is a recommended option.
+ If unsure select "N".
+
endif ## SND_SOC_INTEL_SKYLAKE
endif ## SND_SOC_INTEL_MACH
diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile
index 4298c5a..4f2b9b3 100644
--- a/sound/soc/intel/boards/Makefile
+++ b/sound/soc/intel/boards/Makefile
@@ -23,6 +23,7 @@ snd-soc-skl_rt286-objs := skl_rt286.o
snd-skl_nau88l25_max98357a-objs := skl_nau88l25_max98357a.o
snd-soc-skl_nau88l25_ssm4567-objs := skl_nau88l25_ssm4567.o
snd-soc-cnl_cs42l42-objs := cnl_cs42l42.o
+snd-soc-cnl_svfpga-objs := cnl_svfpga.o
obj-$(CONFIG_SND_SOC_INTEL_HASWELL_MACH) += snd-soc-sst-haswell.o
obj-$(CONFIG_SND_SOC_INTEL_BYT_RT5640_MACH) += snd-soc-sst-byt-rt5640-mach.o
@@ -48,3 +49,4 @@ 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_CNL_CS42L42_MACH) += snd-soc-cnl_cs42l42.o
+obj-$(CONFIG_SND_SOC_INTEL_CNL_SVFPGA_MACH) += snd-soc-cnl_svfpga.o
diff --git a/sound/soc/intel/boards/cnl_svfpga.c b/sound/soc/intel/boards/cnl_svfpga.c
new file mode 100644
index 0000000..312c043
--- /dev/null
+++ b/sound/soc/intel/boards/cnl_svfpga.c
@@ -0,0 +1,273 @@
+/*
+ * cnl_svfpga.c - ASOC Machine driver for Intel cnl_svfpga platform
+ * with SVFPGA PDM soundwire codec.
+ *
+ * Copyright (C) 2016 Intel Corp
+ * Author: Hardik Shah <hardik.t.shah@intel.com>
+ *
+ * Based on
+ * moor_dpcm_florida.c - ASOC Machine driver for Intel Moorefield platform
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * 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.
+ *
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/async.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/acpi.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <linux/input.h>
+
+struct cnl_svfpga_mc_private {
+ u8 pmic_id;
+ void __iomem *osc_clk0_reg;
+ int bt_mode;
+};
+
+static const struct snd_soc_dapm_widget cnl_svfpga_widgets[] = {
+ SND_SOC_DAPM_HP("Headphones", NULL),
+ SND_SOC_DAPM_MIC("AMIC", NULL),
+ SND_SOC_DAPM_MIC("SoC DMIC", NULL),
+};
+
+static const struct snd_soc_dapm_route cnl_svfpga_map[] = {
+ /*Headphones*/
+ { "Headphones", NULL, "HP" },
+ { "I2NP", NULL, "AMIC" },
+
+ /* SWM map link the SWM outs to codec AIF */
+ { "Playback", NULL, "SDW Tx"},
+ { "SDW Tx", NULL, "sdw_codec0_out"},
+
+
+ { "sdw_codec1_in", NULL, "SDW Rx1" },
+ { "SDW Rx1", NULL, "Capture" },
+
+ {"DMic", NULL, "SoC DMIC"},
+ {"DMIC01 Rx", NULL, "Capture"},
+ {"dmic01_hifi", NULL, "DMIC01 Rx"},
+
+};
+
+static const struct snd_kcontrol_new cnl_svfpga_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Headphones"),
+};
+
+static int cnl_svfpga_init(struct snd_soc_pcm_runtime *runtime)
+{
+ int ret;
+ struct snd_soc_card *card = runtime->card;
+
+ pr_info("Entry %s\n", __func__);
+ card->dapm.idle_bias_off = true;
+
+ ret = snd_soc_add_card_controls(card, cnl_svfpga_controls,
+ ARRAY_SIZE(cnl_svfpga_controls));
+ if (ret) {
+ pr_err("unable to add card controls\n");
+ return ret;
+ }
+ return 0;
+}
+
+static unsigned int rates_48000[] = {
+ 48000,
+ 16000,
+ 8000,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_48000 = {
+ .count = ARRAY_SIZE(rates_48000),
+ .list = rates_48000,
+};
+
+static int cnl_svfpga_startup(struct snd_pcm_substream *substream)
+{
+ return snd_pcm_hw_constraint_list(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE,
+ &constraints_48000);
+}
+
+static struct snd_soc_ops cnl_svfpga_ops = {
+ .startup = cnl_svfpga_startup,
+};
+
+static int cnl_svfpga_codec_fixup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_dai *be_cpu_dai;
+ int slot_width = 24;
+ struct snd_interval *rate = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_RATE);
+ struct snd_interval *channels = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_CHANNELS);
+
+ pr_debug("Invoked %s for dailink %s\n", __func__, rtd->dai_link->name);
+ slot_width = 24;
+ rate->min = rate->max = 48000;
+ channels->min = channels->max = 1;
+ snd_mask_none(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT));
+ snd_mask_set(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
+ SNDRV_PCM_FORMAT_S16_LE);
+
+ pr_info("param width set to:0x%x\n",
+ snd_pcm_format_width(params_format(params)));
+ pr_info("Slot width = %d\n", slot_width);
+
+ be_cpu_dai = rtd->cpu_dai;
+ return 0;
+}
+
+static int cnl_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_interval *channels = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_CHANNELS);
+ channels->min = channels->max = 2;
+
+ return 0;
+}
+
+struct snd_soc_dai_link cnl_svfpga_msic_dailink[] = {
+ {
+ .name = "Bxtn Audio Port",
+ .stream_name = "Audio",
+ .cpu_dai_name = "System Pin",
+ .codec_name = "snd-soc-dummy",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .platform_name = "0000:02:18.0",
+ .init = cnl_svfpga_init,
+ .ignore_suspend = 1,
+ .nonatomic = 1,
+ .dynamic = 1,
+ .dpcm_playback = 1,
+ .dpcm_capture = 1,
+ .ops = &cnl_svfpga_ops,
+ },
+ {
+ .name = "SDW0-Codec",
+ .id = 3,
+ .cpu_dai_name = "SDW PDM Pin",
+ .platform_name = "0000:02:18.0",
+ .codec_name = "sdw-slave0-14:13:20:05:86:80",
+ .codec_dai_name = "svfpga",
+ .be_hw_params_fixup = cnl_svfpga_codec_fixup,
+ .ignore_suspend = 1,
+ .no_pcm = 1,
+ .dpcm_playback = 1,
+ .dpcm_capture = 1,
+ },
+ {
+ .name = "dmic01",
+ .id = 4,
+ .cpu_dai_name = "DMIC01 Pin",
+ .codec_name = "dmic-codec",
+ .codec_dai_name = "dmic-hifi",
+ .platform_name = "0000:02:18.0",
+ .ignore_suspend = 1,
+ .no_pcm = 1,
+ .dpcm_capture = 1,
+ .be_hw_params_fixup = cnl_dmic_fixup,
+ },
+
+};
+
+/* SoC card */
+static struct snd_soc_card snd_soc_card_cnl_svfpga = {
+ .name = "cnl_svfpga-audio",
+ .dai_link = cnl_svfpga_msic_dailink,
+ .num_links = ARRAY_SIZE(cnl_svfpga_msic_dailink),
+ .dapm_widgets = cnl_svfpga_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(cnl_svfpga_widgets),
+ .dapm_routes = cnl_svfpga_map,
+ .num_dapm_routes = ARRAY_SIZE(cnl_svfpga_map),
+};
+
+
+static int snd_cnl_svfpga_mc_probe(struct platform_device *pdev)
+{
+ int ret_val = 0;
+ struct cnl_svfpga_mc_private *drv;
+
+ pr_debug("Entry %s\n", __func__);
+
+ drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
+ if (!drv)
+ return -ENOMEM;
+
+ snd_soc_card_cnl_svfpga.dev = &pdev->dev;
+ snd_soc_card_set_drvdata(&snd_soc_card_cnl_svfpga, drv);
+ /* Register the card */
+ ret_val = snd_soc_register_card(&snd_soc_card_cnl_svfpga);
+ if (ret_val && (ret_val != -EPROBE_DEFER)) {
+ pr_err("snd_soc_register_card failed %d\n", ret_val);
+ goto unalloc;
+ }
+ platform_set_drvdata(pdev, &snd_soc_card_cnl_svfpga);
+ pr_info("%s successful\n", __func__);
+ return ret_val;
+
+unalloc:
+ return ret_val;
+}
+
+static int snd_cnl_svfpga_mc_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *soc_card = platform_get_drvdata(pdev);
+ struct cnl_svfpga_mc_private *drv = snd_soc_card_get_drvdata(soc_card);
+
+ pr_debug("In %s\n", __func__);
+
+ devm_kfree(&pdev->dev, drv);
+ snd_soc_card_set_drvdata(soc_card, NULL);
+ snd_soc_unregister_card(soc_card);
+ platform_set_drvdata(pdev, NULL);
+ return 0;
+}
+
+static struct platform_driver snd_cnl_svfpga_mc_driver = {
+ .driver = {
+ .name = "cnl_svfpga",
+ },
+ .probe = snd_cnl_svfpga_mc_probe,
+ .remove = snd_cnl_svfpga_mc_remove,
+};
+
+static int snd_cnl_svfpga_driver_init(void)
+{
+ pr_info("Canonlake Machine Driver cnl_svfpga: svfpga registered\n");
+ return platform_driver_register(&snd_cnl_svfpga_mc_driver);
+}
+module_init(snd_cnl_svfpga_driver_init);
+
+static void snd_cnl_svfpga_driver_exit(void)
+{
+ pr_debug("In %s\n", __func__);
+ platform_driver_unregister(&snd_cnl_svfpga_mc_driver);
+}
+module_exit(snd_cnl_svfpga_driver_exit)
+
+MODULE_DESCRIPTION("ASoC CNL Machine driver");
+MODULE_AUTHOR("Hardik Shah <hardik.t.shah>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:cnl_svfpga");
--
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