summaryrefslogtreecommitdiff
path: root/sound/soc/mid-x86
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/mid-x86')
-rw-r--r--sound/soc/mid-x86/Kconfig14
-rw-r--r--sound/soc/mid-x86/Makefile5
-rw-r--r--sound/soc/mid-x86/mfld_machine.c452
-rw-r--r--sound/soc/mid-x86/sst_platform.c474
-rw-r--r--sound/soc/mid-x86/sst_platform.h63
5 files changed, 1008 insertions, 0 deletions
diff --git a/sound/soc/mid-x86/Kconfig b/sound/soc/mid-x86/Kconfig
new file mode 100644
index 000000000000..29350428f1c2
--- /dev/null
+++ b/sound/soc/mid-x86/Kconfig
@@ -0,0 +1,14 @@
+config SND_MFLD_MACHINE
+ tristate "SOC Machine Audio driver for Intel Medfield MID platform"
+ depends on INTEL_SCU_IPC
+ depends on SND_INTEL_SST
+ select SND_SOC_SN95031
+ select SND_SST_PLATFORM
+ help
+ This adds support for ASoC machine driver for Intel(R) MID Medfield platform
+ used as alsa device in audio substem in Intel(R) MID devices
+ Say Y if you have such a device
+ If unsure select "N".
+
+config SND_SST_PLATFORM
+ tristate
diff --git a/sound/soc/mid-x86/Makefile b/sound/soc/mid-x86/Makefile
new file mode 100644
index 000000000000..639883339465
--- /dev/null
+++ b/sound/soc/mid-x86/Makefile
@@ -0,0 +1,5 @@
+snd-soc-sst-platform-objs := sst_platform.o
+snd-soc-mfld-machine-objs := mfld_machine.o
+
+obj-$(CONFIG_SND_SST_PLATFORM) += snd-soc-sst-platform.o
+obj-$(CONFIG_SND_MFLD_MACHINE) += snd-soc-mfld-machine.o
diff --git a/sound/soc/mid-x86/mfld_machine.c b/sound/soc/mid-x86/mfld_machine.c
new file mode 100644
index 000000000000..429aa1be2cff
--- /dev/null
+++ b/sound/soc/mid-x86/mfld_machine.c
@@ -0,0 +1,452 @@
+/*
+ * mfld_machine.c - ASoc Machine driver for Intel Medfield MID platform
+ *
+ * Copyright (C) 2010 Intel Corp
+ * Author: Vinod Koul <vinod.koul@intel.com>
+ * Author: Harsha Priya <priya.harsha@intel.com>
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include "../codecs/sn95031.h"
+
+#define MID_MONO 1
+#define MID_STEREO 2
+#define MID_MAX_CAP 5
+#define MFLD_JACK_INSERT 0x04
+
+enum soc_mic_bias_zones {
+ MFLD_MV_START = 0,
+ /* mic bias volutage range for Headphones*/
+ MFLD_MV_HP = 400,
+ /* mic bias volutage range for American Headset*/
+ MFLD_MV_AM_HS = 650,
+ /* mic bias volutage range for Headset*/
+ MFLD_MV_HS = 2000,
+ MFLD_MV_UNDEFINED,
+};
+
+static unsigned int hs_switch;
+static unsigned int lo_dac;
+
+struct mfld_mc_private {
+ struct platform_device *socdev;
+ void __iomem *int_base;
+ struct snd_soc_codec *codec;
+ u8 interrupt_status;
+};
+
+struct snd_soc_jack mfld_jack;
+
+/*Headset jack detection DAPM pins */
+static struct snd_soc_jack_pin mfld_jack_pins[] = {
+ {
+ .pin = "Headphones",
+ .mask = SND_JACK_HEADPHONE,
+ },
+ {
+ .pin = "AMIC1",
+ .mask = SND_JACK_MICROPHONE,
+ },
+};
+
+/* jack detection voltage zones */
+static struct snd_soc_jack_zone mfld_zones[] = {
+ {MFLD_MV_START, MFLD_MV_AM_HS, SND_JACK_HEADPHONE},
+ {MFLD_MV_AM_HS, MFLD_MV_HS, SND_JACK_HEADSET},
+};
+
+/* sound card controls */
+static const char *headset_switch_text[] = {"Earpiece", "Headset"};
+
+static const char *lo_text[] = {"Vibra", "Headset", "IHF", "None"};
+
+static const struct soc_enum headset_enum =
+ SOC_ENUM_SINGLE_EXT(2, headset_switch_text);
+
+static const struct soc_enum lo_enum =
+ SOC_ENUM_SINGLE_EXT(4, lo_text);
+
+static int headset_get_switch(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = hs_switch;
+ return 0;
+}
+
+static int headset_set_switch(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ if (ucontrol->value.integer.value[0] == hs_switch)
+ return 0;
+
+ if (ucontrol->value.integer.value[0]) {
+ pr_debug("hs_set HS path\n");
+ snd_soc_dapm_enable_pin(&codec->dapm, "Headphones");
+ snd_soc_dapm_disable_pin(&codec->dapm, "EPOUT");
+ } else {
+ pr_debug("hs_set EP path\n");
+ snd_soc_dapm_disable_pin(&codec->dapm, "Headphones");
+ snd_soc_dapm_enable_pin(&codec->dapm, "EPOUT");
+ }
+ snd_soc_dapm_sync(&codec->dapm);
+ hs_switch = ucontrol->value.integer.value[0];
+
+ return 0;
+}
+
+static void lo_enable_out_pins(struct snd_soc_codec *codec)
+{
+ snd_soc_dapm_enable_pin(&codec->dapm, "IHFOUTL");
+ snd_soc_dapm_enable_pin(&codec->dapm, "IHFOUTR");
+ snd_soc_dapm_enable_pin(&codec->dapm, "LINEOUTL");
+ snd_soc_dapm_enable_pin(&codec->dapm, "LINEOUTR");
+ snd_soc_dapm_enable_pin(&codec->dapm, "VIB1OUT");
+ snd_soc_dapm_enable_pin(&codec->dapm, "VIB2OUT");
+ if (hs_switch) {
+ snd_soc_dapm_enable_pin(&codec->dapm, "Headphones");
+ snd_soc_dapm_disable_pin(&codec->dapm, "EPOUT");
+ } else {
+ snd_soc_dapm_disable_pin(&codec->dapm, "Headphones");
+ snd_soc_dapm_enable_pin(&codec->dapm, "EPOUT");
+ }
+}
+
+static int lo_get_switch(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ ucontrol->value.integer.value[0] = lo_dac;
+ return 0;
+}
+
+static int lo_set_switch(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ if (ucontrol->value.integer.value[0] == lo_dac)
+ return 0;
+
+ /* we dont want to work with last state of lineout so just enable all
+ * pins and then disable pins not required
+ */
+ lo_enable_out_pins(codec);
+ switch (ucontrol->value.integer.value[0]) {
+ case 0:
+ pr_debug("set vibra path\n");
+ snd_soc_dapm_disable_pin(&codec->dapm, "VIB1OUT");
+ snd_soc_dapm_disable_pin(&codec->dapm, "VIB2OUT");
+ snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0);
+ break;
+
+ case 1:
+ pr_debug("set hs path\n");
+ snd_soc_dapm_disable_pin(&codec->dapm, "Headphones");
+ snd_soc_dapm_disable_pin(&codec->dapm, "EPOUT");
+ snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0x22);
+ break;
+
+ case 2:
+ pr_debug("set spkr path\n");
+ snd_soc_dapm_disable_pin(&codec->dapm, "IHFOUTL");
+ snd_soc_dapm_disable_pin(&codec->dapm, "IHFOUTR");
+ snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0x44);
+ break;
+
+ case 3:
+ pr_debug("set null path\n");
+ snd_soc_dapm_disable_pin(&codec->dapm, "LINEOUTL");
+ snd_soc_dapm_disable_pin(&codec->dapm, "LINEOUTR");
+ snd_soc_update_bits(codec, SN95031_LOCTL, 0x66, 0x66);
+ break;
+ }
+ snd_soc_dapm_sync(&codec->dapm);
+ lo_dac = ucontrol->value.integer.value[0];
+ return 0;
+}
+
+static const struct snd_kcontrol_new mfld_snd_controls[] = {
+ SOC_ENUM_EXT("Playback Switch", headset_enum,
+ headset_get_switch, headset_set_switch),
+ SOC_ENUM_EXT("Lineout Mux", lo_enum,
+ lo_get_switch, lo_set_switch),
+};
+
+static const struct snd_soc_dapm_widget mfld_widgets[] = {
+ SND_SOC_DAPM_HP("Headphones", NULL),
+ SND_SOC_DAPM_MIC("Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route mfld_map[] = {
+ {"Headphones", NULL, "HPOUTR"},
+ {"Headphones", NULL, "HPOUTL"},
+ {"Mic", NULL, "AMIC1"},
+};
+
+static void mfld_jack_check(unsigned int intr_status)
+{
+ struct mfld_jack_data jack_data;
+
+ jack_data.mfld_jack = &mfld_jack;
+ jack_data.intr_id = intr_status;
+
+ sn95031_jack_detection(&jack_data);
+ /* TODO: add american headset detection post gpiolib support */
+}
+
+static int mfld_init(struct snd_soc_pcm_runtime *runtime)
+{
+ struct snd_soc_codec *codec = runtime->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ int ret_val;
+
+ /* Add jack sense widgets */
+ snd_soc_dapm_new_controls(dapm, mfld_widgets, ARRAY_SIZE(mfld_widgets));
+
+ /* Set up the map */
+ snd_soc_dapm_add_routes(dapm, mfld_map, ARRAY_SIZE(mfld_map));
+
+ /* always connected */
+ snd_soc_dapm_enable_pin(dapm, "Headphones");
+ snd_soc_dapm_enable_pin(dapm, "Mic");
+ snd_soc_dapm_sync(dapm);
+
+ ret_val = snd_soc_add_controls(codec, mfld_snd_controls,
+ ARRAY_SIZE(mfld_snd_controls));
+ if (ret_val) {
+ pr_err("soc_add_controls failed %d", ret_val);
+ return ret_val;
+ }
+ /* default is earpiece pin, userspace sets it explcitly */
+ snd_soc_dapm_disable_pin(dapm, "Headphones");
+ /* default is lineout NC, userspace sets it explcitly */
+ snd_soc_dapm_disable_pin(dapm, "LINEOUTL");
+ snd_soc_dapm_disable_pin(dapm, "LINEOUTR");
+ lo_dac = 3;
+ hs_switch = 0;
+ /* we dont use linein in this so set to NC */
+ snd_soc_dapm_disable_pin(dapm, "LINEINL");
+ snd_soc_dapm_disable_pin(dapm, "LINEINR");
+ snd_soc_dapm_sync(dapm);
+
+ /* Headset and button jack detection */
+ ret_val = snd_soc_jack_new(codec, "Intel(R) MID Audio Jack",
+ SND_JACK_HEADSET | SND_JACK_BTN_0 |
+ SND_JACK_BTN_1, &mfld_jack);
+ if (ret_val) {
+ pr_err("jack creation failed\n");
+ return ret_val;
+ }
+
+ ret_val = snd_soc_jack_add_pins(&mfld_jack,
+ ARRAY_SIZE(mfld_jack_pins), mfld_jack_pins);
+ if (ret_val) {
+ pr_err("adding jack pins failed\n");
+ return ret_val;
+ }
+ ret_val = snd_soc_jack_add_zones(&mfld_jack,
+ ARRAY_SIZE(mfld_zones), mfld_zones);
+ if (ret_val) {
+ pr_err("adding jack zones failed\n");
+ return ret_val;
+ }
+
+ /* we want to check if anything is inserted at boot,
+ * so send a fake event to codec and it will read adc
+ * to find if anything is there or not */
+ mfld_jack_check(MFLD_JACK_INSERT);
+ return ret_val;
+}
+
+struct snd_soc_dai_link mfld_msic_dailink[] = {
+ {
+ .name = "Medfield Headset",
+ .stream_name = "Headset",
+ .cpu_dai_name = "Headset-cpu-dai",
+ .codec_dai_name = "SN95031 Headset",
+ .codec_name = "sn95031",
+ .platform_name = "sst-platform",
+ .init = mfld_init,
+ },
+ {
+ .name = "Medfield Speaker",
+ .stream_name = "Speaker",
+ .cpu_dai_name = "Speaker-cpu-dai",
+ .codec_dai_name = "SN95031 Speaker",
+ .codec_name = "sn95031",
+ .platform_name = "sst-platform",
+ .init = NULL,
+ },
+ {
+ .name = "Medfield Vibra",
+ .stream_name = "Vibra1",
+ .cpu_dai_name = "Vibra1-cpu-dai",
+ .codec_dai_name = "SN95031 Vibra1",
+ .codec_name = "sn95031",
+ .platform_name = "sst-platform",
+ .init = NULL,
+ },
+ {
+ .name = "Medfield Haptics",
+ .stream_name = "Vibra2",
+ .cpu_dai_name = "Vibra2-cpu-dai",
+ .codec_dai_name = "SN95031 Vibra2",
+ .codec_name = "sn95031",
+ .platform_name = "sst-platform",
+ .init = NULL,
+ },
+};
+
+/* SoC card */
+static struct snd_soc_card snd_soc_card_mfld = {
+ .name = "medfield_audio",
+ .dai_link = mfld_msic_dailink,
+ .num_links = ARRAY_SIZE(mfld_msic_dailink),
+};
+
+static irqreturn_t snd_mfld_jack_intr_handler(int irq, void *dev)
+{
+ struct mfld_mc_private *mc_private = (struct mfld_mc_private *) dev;
+
+ memcpy_fromio(&mc_private->interrupt_status,
+ ((void *)(mc_private->int_base)),
+ sizeof(u8));
+ return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t snd_mfld_jack_detection(int irq, void *data)
+{
+ struct mfld_mc_private *mc_drv_ctx = (struct mfld_mc_private *) data;
+
+ if (mfld_jack.codec == NULL)
+ return IRQ_HANDLED;
+ mfld_jack_check(mc_drv_ctx->interrupt_status);
+
+ return IRQ_HANDLED;
+}
+
+static int __devinit snd_mfld_mc_probe(struct platform_device *pdev)
+{
+ int ret_val = 0, irq;
+ struct mfld_mc_private *mc_drv_ctx;
+ struct resource *irq_mem;
+
+ pr_debug("snd_mfld_mc_probe called\n");
+
+ /* retrive the irq number */
+ irq = platform_get_irq(pdev, 0);
+
+ /* audio interrupt base of SRAM location where
+ * interrupts are stored by System FW */
+ mc_drv_ctx = kzalloc(sizeof(*mc_drv_ctx), GFP_ATOMIC);
+ if (!mc_drv_ctx) {
+ pr_err("allocation failed\n");
+ return -ENOMEM;
+ }
+
+ irq_mem = platform_get_resource_byname(
+ pdev, IORESOURCE_MEM, "IRQ_BASE");
+ if (!irq_mem) {
+ pr_err("no mem resource given\n");
+ ret_val = -ENODEV;
+ goto unalloc;
+ }
+ mc_drv_ctx->int_base = ioremap_nocache(irq_mem->start,
+ resource_size(irq_mem));
+ if (!mc_drv_ctx->int_base) {
+ pr_err("Mapping of cache failed\n");
+ ret_val = -ENOMEM;
+ goto unalloc;
+ }
+ /* register for interrupt */
+ ret_val = request_threaded_irq(irq, snd_mfld_jack_intr_handler,
+ snd_mfld_jack_detection,
+ IRQF_SHARED, pdev->dev.driver->name, mc_drv_ctx);
+ if (ret_val) {
+ pr_err("cannot register IRQ\n");
+ goto unalloc;
+ }
+ /* register the soc card */
+ snd_soc_card_mfld.dev = &pdev->dev;
+ ret_val = snd_soc_register_card(&snd_soc_card_mfld);
+ if (ret_val) {
+ pr_debug("snd_soc_register_card failed %d\n", ret_val);
+ goto freeirq;
+ }
+ platform_set_drvdata(pdev, mc_drv_ctx);
+ pr_debug("successfully exited probe\n");
+ return ret_val;
+
+freeirq:
+ free_irq(irq, mc_drv_ctx);
+unalloc:
+ kfree(mc_drv_ctx);
+ return ret_val;
+}
+
+static int __devexit snd_mfld_mc_remove(struct platform_device *pdev)
+{
+ struct mfld_mc_private *mc_drv_ctx = platform_get_drvdata(pdev);
+
+ pr_debug("snd_mfld_mc_remove called\n");
+ free_irq(platform_get_irq(pdev, 0), mc_drv_ctx);
+ snd_soc_unregister_card(&snd_soc_card_mfld);
+ kfree(mc_drv_ctx);
+ platform_set_drvdata(pdev, NULL);
+ return 0;
+}
+
+static struct platform_driver snd_mfld_mc_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "msic_audio",
+ },
+ .probe = snd_mfld_mc_probe,
+ .remove = __devexit_p(snd_mfld_mc_remove),
+};
+
+static int __init snd_mfld_driver_init(void)
+{
+ pr_debug("snd_mfld_driver_init called\n");
+ return platform_driver_register(&snd_mfld_mc_driver);
+}
+module_init(snd_mfld_driver_init);
+
+static void __exit snd_mfld_driver_exit(void)
+{
+ pr_debug("snd_mfld_driver_exit called\n");
+ platform_driver_unregister(&snd_mfld_mc_driver);
+}
+module_exit(snd_mfld_driver_exit);
+
+MODULE_DESCRIPTION("ASoC Intel(R) MID Machine driver");
+MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
+MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:msic-audio");
diff --git a/sound/soc/mid-x86/sst_platform.c b/sound/soc/mid-x86/sst_platform.c
new file mode 100644
index 000000000000..ee2c22475a76
--- /dev/null
+++ b/sound/soc/mid-x86/sst_platform.c
@@ -0,0 +1,474 @@
+/*
+ * sst_platform.c - Intel MID Platform driver
+ *
+ * Copyright (C) 2010 Intel Corp
+ * Author: Vinod Koul <vinod.koul@intel.com>
+ * Author: Harsha Priya <priya.harsha@intel.com>
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include "../../../drivers/staging/intel_sst/intel_sst_ioctl.h"
+#include "../../../drivers/staging/intel_sst/intel_sst.h"
+#include "sst_platform.h"
+
+static struct snd_pcm_hardware sst_platform_pcm_hw = {
+ .info = (SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_DOUBLE |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_RESUME |
+ SNDRV_PCM_INFO_MMAP|
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER |
+ SNDRV_PCM_INFO_SYNC_START),
+ .formats = (SNDRV_PCM_FMTBIT_S16 | SNDRV_PCM_FMTBIT_U16 |
+ SNDRV_PCM_FMTBIT_S24 | SNDRV_PCM_FMTBIT_U24 |
+ SNDRV_PCM_FMTBIT_S32 | SNDRV_PCM_FMTBIT_U32),
+ .rates = (SNDRV_PCM_RATE_8000|
+ SNDRV_PCM_RATE_44100 |
+ SNDRV_PCM_RATE_48000),
+ .rate_min = SST_MIN_RATE,
+ .rate_max = SST_MAX_RATE,
+ .channels_min = SST_MIN_CHANNEL,
+ .channels_max = SST_MAX_CHANNEL,
+ .buffer_bytes_max = SST_MAX_BUFFER,
+ .period_bytes_min = SST_MIN_PERIOD_BYTES,
+ .period_bytes_max = SST_MAX_PERIOD_BYTES,
+ .periods_min = SST_MIN_PERIODS,
+ .periods_max = SST_MAX_PERIODS,
+ .fifo_size = SST_FIFO_SIZE,
+};
+
+/* MFLD - MSIC */
+struct snd_soc_dai_driver sst_platform_dai[] = {
+{
+ .name = "Headset-cpu-dai",
+ .id = 0,
+ .playback = {
+ .channels_min = SST_STEREO,
+ .channels_max = SST_STEREO,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ },
+ .capture = {
+ .channels_min = 1,
+ .channels_max = 5,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ },
+},
+{
+ .name = "Speaker-cpu-dai",
+ .id = 1,
+ .playback = {
+ .channels_min = SST_MONO,
+ .channels_max = SST_STEREO,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ },
+},
+{
+ .name = "Vibra1-cpu-dai",
+ .id = 2,
+ .playback = {
+ .channels_min = SST_MONO,
+ .channels_max = SST_MONO,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ },
+},
+{
+ .name = "Vibra2-cpu-dai",
+ .id = 3,
+ .playback = {
+ .channels_min = SST_MONO,
+ .channels_max = SST_STEREO,
+ .rates = SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ },
+},
+};
+
+/* helper functions */
+static inline void sst_set_stream_status(struct sst_runtime_stream *stream,
+ int state)
+{
+ spin_lock(&stream->status_lock);
+ stream->stream_status = state;
+ spin_unlock(&stream->status_lock);
+}
+
+static inline int sst_get_stream_status(struct sst_runtime_stream *stream)
+{
+ int state;
+
+ spin_lock(&stream->status_lock);
+ state = stream->stream_status;
+ spin_unlock(&stream->status_lock);
+ return state;
+}
+
+static void sst_fill_pcm_params(struct snd_pcm_substream *substream,
+ struct snd_sst_stream_params *param)
+{
+
+ param->uc.pcm_params.codec = SST_CODEC_TYPE_PCM;
+ param->uc.pcm_params.num_chan = (u8) substream->runtime->channels;
+ param->uc.pcm_params.pcm_wd_sz = substream->runtime->sample_bits;
+ param->uc.pcm_params.reserved = 0;
+ param->uc.pcm_params.sfreq = substream->runtime->rate;
+ param->uc.pcm_params.ring_buffer_size =
+ snd_pcm_lib_buffer_bytes(substream);
+ param->uc.pcm_params.period_count = substream->runtime->period_size;
+ param->uc.pcm_params.ring_buffer_addr =
+ virt_to_phys(substream->dma_buffer.area);
+ pr_debug("period_cnt = %d\n", param->uc.pcm_params.period_count);
+ pr_debug("sfreq= %d, wd_sz = %d\n",
+ param->uc.pcm_params.sfreq, param->uc.pcm_params.pcm_wd_sz);
+}
+
+static int sst_platform_alloc_stream(struct snd_pcm_substream *substream)
+{
+ struct sst_runtime_stream *stream =
+ substream->runtime->private_data;
+ struct snd_sst_stream_params param = {{{0,},},};
+ struct snd_sst_params str_params = {0};
+ int ret_val;
+
+ /* set codec params and inform SST driver the same */
+ sst_fill_pcm_params(substream, &param);
+ substream->runtime->dma_area = substream->dma_buffer.area;
+ str_params.sparams = param;
+ str_params.codec = param.uc.pcm_params.codec;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ str_params.ops = STREAM_OPS_PLAYBACK;
+ str_params.device_type = substream->pcm->device + 1;
+ pr_debug("Playbck stream,Device %d\n",
+ substream->pcm->device);
+ } else {
+ str_params.ops = STREAM_OPS_CAPTURE;
+ str_params.device_type = SND_SST_DEVICE_CAPTURE;
+ pr_debug("Capture stream,Device %d\n",
+ substream->pcm->device);
+ }
+ ret_val = stream->sstdrv_ops->pcm_control->open(&str_params);
+ pr_debug("SST_SND_PLAY/CAPTURE ret_val = %x\n", ret_val);
+ if (ret_val < 0)
+ return ret_val;
+
+ stream->stream_info.str_id = ret_val;
+ pr_debug("str id : %d\n", stream->stream_info.str_id);
+ return ret_val;
+}
+
+static void sst_period_elapsed(void *mad_substream)
+{
+ struct snd_pcm_substream *substream = mad_substream;
+ struct sst_runtime_stream *stream;
+ int status;
+
+ if (!substream || !substream->runtime)
+ return;
+ stream = substream->runtime->private_data;
+ if (!stream)
+ return;
+ status = sst_get_stream_status(stream);
+ if (status != SST_PLATFORM_RUNNING)
+ return;
+ snd_pcm_period_elapsed(substream);
+}
+
+static int sst_platform_init_stream(struct snd_pcm_substream *substream)
+{
+ struct sst_runtime_stream *stream =
+ substream->runtime->private_data;
+ int ret_val;
+
+ pr_debug("setting buffer ptr param\n");
+ sst_set_stream_status(stream, SST_PLATFORM_INIT);
+ stream->stream_info.period_elapsed = sst_period_elapsed;
+ stream->stream_info.mad_substream = substream;
+ stream->stream_info.buffer_ptr = 0;
+ stream->stream_info.sfreq = substream->runtime->rate;
+ ret_val = stream->sstdrv_ops->pcm_control->device_control(
+ SST_SND_STREAM_INIT, &stream->stream_info);
+ if (ret_val)
+ pr_err("control_set ret error %d\n", ret_val);
+ return ret_val;
+
+}
+/* end -- helper functions */
+
+static int sst_platform_open(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime;
+ struct sst_runtime_stream *stream;
+ int ret_val = 0;
+
+ pr_debug("sst_platform_open called\n");
+ runtime = substream->runtime;
+ runtime->hw = sst_platform_pcm_hw;
+ stream = kzalloc(sizeof(*stream), GFP_KERNEL);
+ if (!stream)
+ return -ENOMEM;
+ spin_lock_init(&stream->status_lock);
+ stream->stream_info.str_id = 0;
+ sst_set_stream_status(stream, SST_PLATFORM_INIT);
+ stream->stream_info.mad_substream = substream;
+ /* allocate memory for SST API set */
+ stream->sstdrv_ops = kzalloc(sizeof(*stream->sstdrv_ops),
+ GFP_KERNEL);
+ if (!stream->sstdrv_ops) {
+ pr_err("sst: mem allocation for ops fail\n");
+ kfree(stream);
+ return -ENOMEM;
+ }
+ stream->sstdrv_ops->vendor_id = MSIC_VENDOR_ID;
+ /* registering with SST driver to get access to SST APIs to use */
+ ret_val = register_sst_card(stream->sstdrv_ops);
+ if (ret_val) {
+ pr_err("sst: sst card registration failed\n");
+ return ret_val;
+ }
+ runtime->private_data = stream;
+ return snd_pcm_hw_constraint_integer(runtime,
+ SNDRV_PCM_HW_PARAM_PERIODS);
+}
+
+static int sst_platform_close(struct snd_pcm_substream *substream)
+{
+ struct sst_runtime_stream *stream;
+ int ret_val = 0, str_id;
+
+ pr_debug("sst_platform_close called\n");
+ stream = substream->runtime->private_data;
+ str_id = stream->stream_info.str_id;
+ if (str_id)
+ ret_val = stream->sstdrv_ops->pcm_control->close(str_id);
+ kfree(stream->sstdrv_ops);
+ kfree(stream);
+ return ret_val;
+}
+
+static int sst_platform_pcm_prepare(struct snd_pcm_substream *substream)
+{
+ struct sst_runtime_stream *stream;
+ int ret_val = 0, str_id;
+
+ pr_debug("sst_platform_pcm_prepare called\n");
+ stream = substream->runtime->private_data;
+ str_id = stream->stream_info.str_id;
+ if (stream->stream_info.str_id) {
+ ret_val = stream->sstdrv_ops->pcm_control->device_control(
+ SST_SND_DROP, &str_id);
+ return ret_val;
+ }
+
+ ret_val = sst_platform_alloc_stream(substream);
+ if (ret_val < 0)
+ return ret_val;
+ snprintf(substream->pcm->id, sizeof(substream->pcm->id),
+ "%d", stream->stream_info.str_id);
+
+ ret_val = sst_platform_init_stream(substream);
+ if (ret_val)
+ return ret_val;
+ substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER;
+ return ret_val;
+}
+
+static int sst_platform_pcm_trigger(struct snd_pcm_substream *substream,
+ int cmd)
+{
+ int ret_val = 0, str_id;
+ struct sst_runtime_stream *stream;
+ int str_cmd, status;
+
+ pr_debug("sst_platform_pcm_trigger called\n");
+ stream = substream->runtime->private_data;
+ str_id = stream->stream_info.str_id;
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ pr_debug("sst: Trigger Start\n");
+ str_cmd = SST_SND_START;
+ status = SST_PLATFORM_RUNNING;
+ stream->stream_info.mad_substream = substream;
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ pr_debug("sst: in stop\n");
+ str_cmd = SST_SND_DROP;
+ status = SST_PLATFORM_DROPPED;
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ pr_debug("sst: in pause\n");
+ str_cmd = SST_SND_PAUSE;
+ status = SST_PLATFORM_PAUSED;
+ break;
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ pr_debug("sst: in pause release\n");
+ str_cmd = SST_SND_RESUME;
+ status = SST_PLATFORM_RUNNING;
+ break;
+ default:
+ return -EINVAL;
+ }
+ ret_val = stream->sstdrv_ops->pcm_control->device_control(str_cmd,
+ &str_id);
+ if (!ret_val)
+ sst_set_stream_status(stream, status);
+
+ return ret_val;
+}
+
+
+static snd_pcm_uframes_t sst_platform_pcm_pointer
+ (struct snd_pcm_substream *substream)
+{
+ struct sst_runtime_stream *stream;
+ int ret_val, status;
+ struct pcm_stream_info *str_info;
+
+ stream = substream->runtime->private_data;
+ status = sst_get_stream_status(stream);
+ if (status == SST_PLATFORM_INIT)
+ return 0;
+ str_info = &stream->stream_info;
+ ret_val = stream->sstdrv_ops->pcm_control->device_control(
+ SST_SND_BUFFER_POINTER, str_info);
+ if (ret_val) {
+ pr_err("sst: error code = %d\n", ret_val);
+ return ret_val;
+ }
+ return stream->stream_info.buffer_ptr;
+}
+
+static int sst_platform_pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
+ memset(substream->runtime->dma_area, 0, params_buffer_bytes(params));
+
+ return 0;
+}
+
+static struct snd_pcm_ops sst_platform_ops = {
+ .open = sst_platform_open,
+ .close = sst_platform_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .prepare = sst_platform_pcm_prepare,
+ .trigger = sst_platform_pcm_trigger,
+ .pointer = sst_platform_pcm_pointer,
+ .hw_params = sst_platform_pcm_hw_params,
+};
+
+static void sst_pcm_free(struct snd_pcm *pcm)
+{
+ pr_debug("sst_pcm_free called\n");
+ snd_pcm_lib_preallocate_free_for_all(pcm);
+}
+
+int sst_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
+ struct snd_pcm *pcm)
+{
+ int retval = 0;
+
+ pr_debug("sst_pcm_new called\n");
+ if (dai->driver->playback.channels_min ||
+ dai->driver->capture.channels_min) {
+ retval = snd_pcm_lib_preallocate_pages_for_all(pcm,
+ SNDRV_DMA_TYPE_CONTINUOUS,
+ snd_dma_continuous_data(GFP_KERNEL),
+ SST_MIN_BUFFER, SST_MAX_BUFFER);
+ if (retval) {
+ pr_err("dma buffer allocationf fail\n");
+ return retval;
+ }
+ }
+ return retval;
+}
+struct snd_soc_platform_driver sst_soc_platform_drv = {
+ .ops = &sst_platform_ops,
+ .pcm_new = sst_pcm_new,
+ .pcm_free = sst_pcm_free,
+};
+
+static int sst_platform_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ pr_debug("sst_platform_probe called\n");
+ ret = snd_soc_register_platform(&pdev->dev, &sst_soc_platform_drv);
+ if (ret) {
+ pr_err("registering soc platform failed\n");
+ return ret;
+ }
+
+ ret = snd_soc_register_dais(&pdev->dev,
+ sst_platform_dai, ARRAY_SIZE(sst_platform_dai));
+ if (ret) {
+ pr_err("registering cpu dais failed\n");
+ snd_soc_unregister_platform(&pdev->dev);
+ }
+ return ret;
+}
+
+static int sst_platform_remove(struct platform_device *pdev)
+{
+
+ snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(sst_platform_dai));
+ snd_soc_unregister_platform(&pdev->dev);
+ pr_debug("sst_platform_remove sucess\n");
+ return 0;
+}
+
+static struct platform_driver sst_platform_driver = {
+ .driver = {
+ .name = "sst-platform",
+ .owner = THIS_MODULE,
+ },
+ .probe = sst_platform_probe,
+ .remove = sst_platform_remove,
+};
+
+static int __init sst_soc_platform_init(void)
+{
+ pr_debug("sst_soc_platform_init called\n");
+ return platform_driver_register(&sst_platform_driver);
+}
+module_init(sst_soc_platform_init);
+
+static void __exit sst_soc_platform_exit(void)
+{
+ platform_driver_unregister(&sst_platform_driver);
+ pr_debug("sst_soc_platform_exit sucess\n");
+}
+module_exit(sst_soc_platform_exit);
+
+MODULE_DESCRIPTION("ASoC Intel(R) MID Platform driver");
+MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
+MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:sst-platform");
diff --git a/sound/soc/mid-x86/sst_platform.h b/sound/soc/mid-x86/sst_platform.h
new file mode 100644
index 000000000000..df370286694f
--- /dev/null
+++ b/sound/soc/mid-x86/sst_platform.h
@@ -0,0 +1,63 @@
+/*
+ * sst_platform.h - Intel MID Platform driver header file
+ *
+ * Copyright (C) 2010 Intel Corp
+ * Author: Vinod Koul <vinod.koul@intel.com>
+ * Author: Harsha Priya <priya.harsha@intel.com>
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *
+ */
+
+#ifndef __SST_PLATFORMDRV_H__
+#define __SST_PLATFORMDRV_H__
+
+#define SST_MONO 1
+#define SST_STEREO 2
+#define SST_MAX_CAP 5
+
+#define SST_MIN_RATE 8000
+#define SST_MAX_RATE 48000
+#define SST_MIN_CHANNEL 1
+#define SST_MAX_CHANNEL 5
+#define SST_MAX_BUFFER (800*1024)
+#define SST_MIN_BUFFER (800*1024)
+#define SST_MIN_PERIOD_BYTES 32
+#define SST_MAX_PERIOD_BYTES SST_MAX_BUFFER
+#define SST_MIN_PERIODS 2
+#define SST_MAX_PERIODS (1024*2)
+#define SST_FIFO_SIZE 0
+#define SST_CARD_NAMES "intel_mid_card"
+#define MSIC_VENDOR_ID 3
+
+struct sst_runtime_stream {
+ int stream_status;
+ struct pcm_stream_info stream_info;
+ struct intel_sst_card_ops *sstdrv_ops;
+ spinlock_t status_lock;
+};
+
+enum sst_drv_status {
+ SST_PLATFORM_INIT = 1,
+ SST_PLATFORM_STARTED,
+ SST_PLATFORM_RUNNING,
+ SST_PLATFORM_PAUSED,
+ SST_PLATFORM_DROPPED,
+};
+
+#endif
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-09 08:33:16 +0300