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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Puneeth Prabhu <puneethx.prabhu@intel.com>
Date: Mon, 7 May 2018 17:22:32 +0530
Subject: [PATCH] ASoC: Intel: Boards: Add machine driver for HU topology
This patch adds I2S machine driver for IVI HU topology
which uses dummy codec.
Change-Id: Iff3afa704d23bc7a479265bf1139db5af579b258
Signed-off-by: Puneeth Prabhu <puneethx.prabhu@intel.com>
Reviewed-on:
Reviewed-by: Singh, Guneshwor O <guneshwor.o.singh@intel.com>
Reviewed-by: Kesapragada, Pardha Saradhi <pardha.saradhi.kesapragada@intel.com>
Reviewed-by: Kale, Sanyog R <sanyog.r.kale@intel.com>
Tested-by: Madiwalar, MadiwalappaX <madiwalappax.madiwalar@intel.com>
---
sound/soc/intel/boards/Kconfig | 9 +
sound/soc/intel/boards/Makefile | 2 +
sound/soc/intel/boards/bxtp_ivi_hu_rt298.c | 250 +++++++++++++++++++++
3 files changed, 261 insertions(+)
create mode 100644 sound/soc/intel/boards/bxtp_ivi_hu_rt298.c
diff --git a/sound/soc/intel/boards/Kconfig b/sound/soc/intel/boards/Kconfig
index c807cc465c47..d98f82cf4a3c 100644
--- a/sound/soc/intel/boards/Kconfig
+++ b/sound/soc/intel/boards/Kconfig
@@ -392,6 +392,15 @@ config SND_SOC_INTEL_BXTP_IVI_RSE_MACH
Say Y or m if you have such a device. This is a recommended option.
If unsure select "N".
+config SND_SOC_INTEL_BXTP_IVI_HU_MACH
+ tristate "ASoC Audio driver for BXTP IVI HU with Dummy Codecs"
+ depends on MFD_INTEL_LPSS && I2C && ACPI
+ help
+ This adds support for ASoC machine driver for Broxton-P platforms
+ with Dummy I2S audio codec for IVI Head Unit.
+ 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 683737d503dc..949db4b0438d 100644
--- a/sound/soc/intel/boards/Makefile
+++ b/sound/soc/intel/boards/Makefile
@@ -31,6 +31,7 @@ snd-soc-cnl_svfpga-objs := cnl_svfpga.o
snd-soc-bxt_ivi_ull-objs := bxt_ivi_ull.o
snd-soc-kblr_rt298-objs := kblr_rt298.o
snd-soc-bxtp_ivi_rse_rt298-objs := bxtp_ivi_rse_rt298.o
+snd-soc-bxtp_ivi_hu_rt298-objs := bxtp_ivi_hu_rt298.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
@@ -64,3 +65,4 @@ obj-$(CONFIG_SND_SOC_INTEL_CNL_SVFPGA_MACH) += snd-soc-cnl_svfpga.o
obj-$(CONFIG_SND_SOC_INTEL_BXT_ULL_MACH) += snd-soc-bxt_ivi_ull.o
obj-$(CONFIG_SND_SOC_INTEL_KBLR_RT298_MACH) += snd-soc-kblr_rt298.o
obj-$(CONFIG_SND_SOC_INTEL_BXTP_IVI_RSE_MACH) += snd-soc-bxtp_ivi_rse_rt298.o
+obj-$(CONFIG_SND_SOC_INTEL_BXTP_IVI_HU_MACH) += snd-soc-bxtp_ivi_hu_rt298.o
diff --git a/sound/soc/intel/boards/bxtp_ivi_hu_rt298.c b/sound/soc/intel/boards/bxtp_ivi_hu_rt298.c
new file mode 100644
index 000000000000..ce467721305a
--- /dev/null
+++ b/sound/soc/intel/boards/bxtp_ivi_hu_rt298.c
@@ -0,0 +1,250 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright(c) 2018 Intel Corporation
+
+/*
+ * bxtp_ivi_hu_rt298.c -Intel HU I2S Machine Driver
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+
+#define DEF_BT_RATE_INBDEX 0x0
+
+struct bxtp_ivi_hu_prv {
+ int srate;
+};
+
+static unsigned int ivi_hu_bt_rates[] = {
+ 8000,
+ 16000,
+};
+
+/* sound card controls */
+static const char * const bt_rate[] = {"8K", "16K"};
+
+static const struct soc_enum btrate_enum =
+ SOC_ENUM_SINGLE_EXT(2, bt_rate);
+
+static int bt_sample_rate_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+ struct bxtp_ivi_hu_prv *drv = snd_soc_card_get_drvdata(card);
+
+ ucontrol->value.integer.value[0] = drv->srate;
+ return 0;
+}
+
+static int bt_sample_rate_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
+ struct bxtp_ivi_hu_prv *drv = snd_soc_card_get_drvdata(card);
+
+ if (ucontrol->value.integer.value[0] == drv->srate)
+ return 0;
+
+ drv->srate = ucontrol->value.integer.value[0];
+ return 0;
+
+}
+
+static const struct snd_kcontrol_new hu_snd_controls[] = {
+
+ SOC_ENUM_EXT("BT Rate", btrate_enum,
+ bt_sample_rate_get, bt_sample_rate_put),
+};
+
+static const struct snd_soc_dapm_widget broxton_widgets[] = {
+ SND_SOC_DAPM_SPK("Speaker", NULL),
+ SND_SOC_DAPM_MIC("DMIC2", NULL),
+};
+
+static const struct snd_soc_dapm_route broxton_rt298_map[] = {
+ {"Speaker", NULL, "Dummy Playback"},
+ {"Dummy Capture", NULL, "DMIC2"},
+
+ { "Dummy Playback", NULL, "ssp0 Tx"},
+ { "ssp0 Tx", NULL, "codec0_out"},
+
+ { "bt_ssp0_in", NULL, "ssp0 Rx" },
+ { "ssp0 Rx", NULL, "Dummy Capture" },
+};
+
+static int bxtp_ssp0_gpio_init(struct snd_soc_pcm_runtime *rtd)
+{
+ char *gpio_addr;
+ u32 gpio_value1 = 0x40900500;
+ u32 gpio_value2 = 0x44000600;
+
+ gpio_addr = (void *)ioremap_nocache(0xd0c40610, 0x30);
+ if (gpio_addr == NULL)
+ return(-EIO);
+
+ memcpy_toio(gpio_addr + 0x8, &gpio_value1, sizeof(gpio_value1));
+ memcpy_toio(gpio_addr + 0x10, &gpio_value2, sizeof(gpio_value2));
+ memcpy_toio(gpio_addr + 0x18, &gpio_value2, sizeof(gpio_value2));
+ memcpy_toio(gpio_addr + 0x20, &gpio_value2, sizeof(gpio_value2));
+
+ iounmap(gpio_addr);
+ return 0;
+}
+
+static int broxton_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_interval *rate = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_RATE);
+
+ struct snd_soc_card *card = rtd->card;
+ struct bxtp_ivi_hu_prv *drv = snd_soc_card_get_drvdata(card);
+
+ /* SSP0 operates with a BT Transceiver */
+ rate->min = rate->max = ivi_hu_bt_rates[drv->srate];
+ return 0;
+}
+
+static const char pname[] = "0000:00:0e.0";
+
+/* broxton digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link broxton_rt298_dais[] = {
+ /* Trace Buffer DAI links */
+ {
+ .name = "Bxt Trace Buffer0",
+ .stream_name = "Core 0 Trace Buffer",
+ .cpu_dai_name = "TraceBuffer0 Pin",
+ .codec_name = "snd-soc-dummy",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .platform_name = pname,
+ .capture_only = true,
+ .ignore_suspend = 1,
+ },
+ {
+ .name = "Bxt Trace Buffer1",
+ .stream_name = "Core 1 Trace Buffer",
+ .cpu_dai_name = "TraceBuffer1 Pin",
+ .codec_name = "snd-soc-dummy",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .platform_name = pname,
+ .capture_only = true,
+ .ignore_suspend = 1,
+ },
+ {
+ .name = "Bxt Compress Probe playback",
+ .stream_name = "Probe Playback",
+ .cpu_dai_name = "Compress Probe0 Pin",
+ .codec_name = "snd-soc-dummy",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .platform_name = pname,
+ .init = NULL,
+ .nonatomic = 1,
+ },
+ {
+ .name = "Bxt Compress Probe capture",
+ .stream_name = "Probe Capture",
+ .cpu_dai_name = "Compress Probe1 Pin",
+ .codec_name = "snd-soc-dummy",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .platform_name = pname,
+ .init = NULL,
+ .nonatomic = 1,
+ },
+
+ /* Back End DAI links */
+ {
+ /* SSP0 - Codec - for HDMI MCH */
+ .name = "SSP0-Codec",
+ .id = 0,
+ .cpu_dai_name = "SSP0 Pin",
+ .platform_name = pname,
+ .no_pcm = 1,
+ .codec_name = "snd-soc-dummy",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .init = bxtp_ssp0_gpio_init,
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS,
+ .ignore_suspend = 1,
+ .ignore_pmdown_time = 1,
+ .be_hw_params_fixup = broxton_ssp0_fixup,
+ .dpcm_capture = 1,
+ .dpcm_playback = 1,
+ },
+};
+
+static int
+bxt_add_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *link)
+{
+ link->platform_name = pname;
+ link->nonatomic = 1;
+
+ return 0;
+}
+
+/* broxton audio machine driver for SPT + RT298S */
+static struct snd_soc_card broxton_rt298 = {
+ .name = "broxton-ivi-hu",
+ .dai_link = broxton_rt298_dais,
+ .num_links = ARRAY_SIZE(broxton_rt298_dais),
+ .controls = hu_snd_controls,
+ .num_controls = ARRAY_SIZE(hu_snd_controls),
+ .dapm_widgets = broxton_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(broxton_widgets),
+ .dapm_routes = broxton_rt298_map,
+ .num_dapm_routes = ARRAY_SIZE(broxton_rt298_map),
+ .fully_routed = true,
+ .add_dai_link = bxt_add_dai_link,
+};
+
+static int broxton_audio_probe(struct platform_device *pdev)
+{
+ int ret_val;
+ struct bxtp_ivi_hu_prv *drv;
+
+ broxton_rt298.dev = &pdev->dev;
+
+ drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
+ if (!drv)
+ return -ENOMEM;
+
+ drv->srate = DEF_BT_RATE_INBDEX;
+ snd_soc_card_set_drvdata(&broxton_rt298, drv);
+
+ ret_val = snd_soc_register_card(&broxton_rt298);
+ if (ret_val) {
+ dev_dbg(&pdev->dev, "snd_soc_register_card failed %d\n",
+ ret_val);
+ return ret_val;
+ }
+
+ platform_set_drvdata(pdev, &broxton_rt298);
+
+ return ret_val;
+}
+
+static int broxton_audio_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_card(&broxton_rt298);
+ return 0;
+}
+
+static struct platform_driver broxton_audio = {
+ .probe = broxton_audio_probe,
+ .remove = broxton_audio_remove,
+ .driver = {
+ .name = "bxt_ivi_hu_i2s",
+ },
+};
+
+module_platform_driver(broxton_audio);
+
+/* Module information */
+MODULE_AUTHOR("Pardha Saradhi K <pardha.saradhi.kesapragada@intel.com>");
+MODULE_AUTHOR("Ramesh Babu <Ramesh.Babu@intel.com>");
+MODULE_AUTHOR("Senthilnathan Veppur <senthilnathanx.veppur@intel.com>");
+MODULE_DESCRIPTION("Intel SST Audio for Broxton-P IVI HU");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:bxt_ivi_hu_i2s");
--
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