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-rw-r--r--sound/soc/cirrus/Kconfig42
-rw-r--r--sound/soc/cirrus/Makefile17
-rw-r--r--sound/soc/cirrus/edb93xx.c128
-rw-r--r--sound/soc/cirrus/ep93xx-ac97.c435
-rw-r--r--sound/soc/cirrus/ep93xx-i2s.c451
-rw-r--r--sound/soc/cirrus/ep93xx-pcm.c242
-rw-r--r--sound/soc/cirrus/ep93xx-pcm.h20
-rw-r--r--sound/soc/cirrus/simone.c90
-rw-r--r--sound/soc/cirrus/snappercl15.c146
9 files changed, 1571 insertions, 0 deletions
diff --git a/sound/soc/cirrus/Kconfig b/sound/soc/cirrus/Kconfig
new file mode 100644
index 00000000000..88143db7e75
--- /dev/null
+++ b/sound/soc/cirrus/Kconfig
@@ -0,0 +1,42 @@
+config SND_EP93XX_SOC
+ tristate "SoC Audio support for the Cirrus Logic EP93xx series"
+ depends on ARCH_EP93XX && SND_SOC
+ select SND_SOC_DMAENGINE_PCM
+ help
+ Say Y or M if you want to add support for codecs attached to
+ the EP93xx I2S or AC97 interfaces.
+
+config SND_EP93XX_SOC_I2S
+ tristate
+
+config SND_EP93XX_SOC_AC97
+ tristate
+ select AC97_BUS
+ select SND_SOC_AC97_BUS
+
+config SND_EP93XX_SOC_SNAPPERCL15
+ tristate "SoC Audio support for Bluewater Systems Snapper CL15 module"
+ depends on SND_EP93XX_SOC && MACH_SNAPPER_CL15
+ select SND_EP93XX_SOC_I2S
+ select SND_SOC_TLV320AIC23
+ help
+ Say Y or M here if you want to add support for I2S audio on the
+ Bluewater Systems Snapper CL15 module.
+
+config SND_EP93XX_SOC_SIMONE
+ tristate "SoC Audio support for Simplemachines Sim.One board"
+ depends on SND_EP93XX_SOC && MACH_SIM_ONE
+ select SND_EP93XX_SOC_AC97
+ select SND_SOC_AC97_CODEC
+ help
+ Say Y or M here if you want to add support for AC97 audio on the
+ Simplemachines Sim.One board.
+
+config SND_EP93XX_SOC_EDB93XX
+ tristate "SoC Audio support for Cirrus Logic EDB93xx boards"
+ depends on SND_EP93XX_SOC && (MACH_EDB9301 || MACH_EDB9302 || MACH_EDB9302A || MACH_EDB9307A || MACH_EDB9315A)
+ select SND_EP93XX_SOC_I2S
+ select SND_SOC_CS4271
+ help
+ Say Y or M here if you want to add support for I2S audio on the
+ Cirrus Logic EDB93xx boards.
diff --git a/sound/soc/cirrus/Makefile b/sound/soc/cirrus/Makefile
new file mode 100644
index 00000000000..5514146cbdf
--- /dev/null
+++ b/sound/soc/cirrus/Makefile
@@ -0,0 +1,17 @@
+# EP93xx Platform Support
+snd-soc-ep93xx-objs := ep93xx-pcm.o
+snd-soc-ep93xx-i2s-objs := ep93xx-i2s.o
+snd-soc-ep93xx-ac97-objs := ep93xx-ac97.o
+
+obj-$(CONFIG_SND_EP93XX_SOC) += snd-soc-ep93xx.o
+obj-$(CONFIG_SND_EP93XX_SOC_I2S) += snd-soc-ep93xx-i2s.o
+obj-$(CONFIG_SND_EP93XX_SOC_AC97) += snd-soc-ep93xx-ac97.o
+
+# EP93XX Machine Support
+snd-soc-snappercl15-objs := snappercl15.o
+snd-soc-simone-objs := simone.o
+snd-soc-edb93xx-objs := edb93xx.o
+
+obj-$(CONFIG_SND_EP93XX_SOC_SNAPPERCL15) += snd-soc-snappercl15.o
+obj-$(CONFIG_SND_EP93XX_SOC_SIMONE) += snd-soc-simone.o
+obj-$(CONFIG_SND_EP93XX_SOC_EDB93XX) += snd-soc-edb93xx.o
diff --git a/sound/soc/cirrus/edb93xx.c b/sound/soc/cirrus/edb93xx.c
new file mode 100644
index 00000000000..e01cb02abd3
--- /dev/null
+++ b/sound/soc/cirrus/edb93xx.c
@@ -0,0 +1,128 @@
+/*
+ * SoC audio for EDB93xx
+ *
+ * Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru>
+ *
+ * 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; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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.
+ *
+ * This driver support CS4271 codec being master or slave, working
+ * in control port mode, connected either via SPI or I2C.
+ * The data format accepted is I2S or left-justified.
+ * DAPM support not implemented.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include "ep93xx-pcm.h"
+
+static int edb93xx_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ int err;
+ unsigned int mclk_rate;
+ unsigned int rate = params_rate(params);
+
+ /*
+ * According to CS4271 datasheet we use MCLK/LRCK=256 for
+ * rates below 50kHz and 128 for higher sample rates
+ */
+ if (rate < 50000)
+ mclk_rate = rate * 64 * 4;
+ else
+ mclk_rate = rate * 64 * 2;
+
+ err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk_rate,
+ SND_SOC_CLOCK_IN);
+ if (err)
+ return err;
+
+ return snd_soc_dai_set_sysclk(cpu_dai, 0, mclk_rate,
+ SND_SOC_CLOCK_OUT);
+}
+
+static struct snd_soc_ops edb93xx_ops = {
+ .hw_params = edb93xx_hw_params,
+};
+
+static struct snd_soc_dai_link edb93xx_dai = {
+ .name = "CS4271",
+ .stream_name = "CS4271 HiFi",
+ .platform_name = "ep93xx-pcm-audio",
+ .cpu_dai_name = "ep93xx-i2s",
+ .codec_name = "spi0.0",
+ .codec_dai_name = "cs4271-hifi",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_IF |
+ SND_SOC_DAIFMT_CBS_CFS,
+ .ops = &edb93xx_ops,
+};
+
+static struct snd_soc_card snd_soc_edb93xx = {
+ .name = "EDB93XX",
+ .owner = THIS_MODULE,
+ .dai_link = &edb93xx_dai,
+ .num_links = 1,
+};
+
+static int __devinit edb93xx_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &snd_soc_edb93xx;
+ int ret;
+
+ ret = ep93xx_i2s_acquire();
+ if (ret)
+ return ret;
+
+ card->dev = &pdev->dev;
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+ ret);
+ ep93xx_i2s_release();
+ }
+
+ return ret;
+}
+
+static int __devexit edb93xx_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_card(card);
+ ep93xx_i2s_release();
+
+ return 0;
+}
+
+static struct platform_driver edb93xx_driver = {
+ .driver = {
+ .name = "edb93xx-audio",
+ .owner = THIS_MODULE,
+ },
+ .probe = edb93xx_probe,
+ .remove = __devexit_p(edb93xx_remove),
+};
+
+module_platform_driver(edb93xx_driver);
+
+MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>");
+MODULE_DESCRIPTION("ALSA SoC EDB93xx");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:edb93xx-audio");
diff --git a/sound/soc/cirrus/ep93xx-ac97.c b/sound/soc/cirrus/ep93xx-ac97.c
new file mode 100644
index 00000000000..c3521653cfd
--- /dev/null
+++ b/sound/soc/cirrus/ep93xx-ac97.c
@@ -0,0 +1,435 @@
+/*
+ * ASoC driver for Cirrus Logic EP93xx AC97 controller.
+ *
+ * Copyright (c) 2010 Mika Westerberg
+ *
+ * Based on s3c-ac97 ASoC driver by Jaswinder Singh.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <sound/core.h>
+#include <sound/ac97_codec.h>
+#include <sound/soc.h>
+
+#include <linux/platform_data/dma-ep93xx.h>
+#include "ep93xx-pcm.h"
+
+/*
+ * Per channel (1-4) registers.
+ */
+#define AC97CH(n) (((n) - 1) * 0x20)
+
+#define AC97DR(n) (AC97CH(n) + 0x0000)
+
+#define AC97RXCR(n) (AC97CH(n) + 0x0004)
+#define AC97RXCR_REN BIT(0)
+#define AC97RXCR_RX3 BIT(3)
+#define AC97RXCR_RX4 BIT(4)
+#define AC97RXCR_CM BIT(15)
+
+#define AC97TXCR(n) (AC97CH(n) + 0x0008)
+#define AC97TXCR_TEN BIT(0)
+#define AC97TXCR_TX3 BIT(3)
+#define AC97TXCR_TX4 BIT(4)
+#define AC97TXCR_CM BIT(15)
+
+#define AC97SR(n) (AC97CH(n) + 0x000c)
+#define AC97SR_TXFE BIT(1)
+#define AC97SR_TXUE BIT(6)
+
+#define AC97RISR(n) (AC97CH(n) + 0x0010)
+#define AC97ISR(n) (AC97CH(n) + 0x0014)
+#define AC97IE(n) (AC97CH(n) + 0x0018)
+
+/*
+ * Global AC97 controller registers.
+ */
+#define AC97S1DATA 0x0080
+#define AC97S2DATA 0x0084
+#define AC97S12DATA 0x0088
+
+#define AC97RGIS 0x008c
+#define AC97GIS 0x0090
+#define AC97IM 0x0094
+/*
+ * Common bits for RGIS, GIS and IM registers.
+ */
+#define AC97_SLOT2RXVALID BIT(1)
+#define AC97_CODECREADY BIT(5)
+#define AC97_SLOT2TXCOMPLETE BIT(6)
+
+#define AC97EOI 0x0098
+#define AC97EOI_WINT BIT(0)
+#define AC97EOI_CODECREADY BIT(1)
+
+#define AC97GCR 0x009c
+#define AC97GCR_AC97IFE BIT(0)
+
+#define AC97RESET 0x00a0
+#define AC97RESET_TIMEDRESET BIT(0)
+
+#define AC97SYNC 0x00a4
+#define AC97SYNC_TIMEDSYNC BIT(0)
+
+#define AC97_TIMEOUT msecs_to_jiffies(5)
+
+/**
+ * struct ep93xx_ac97_info - EP93xx AC97 controller info structure
+ * @lock: mutex serializing access to the bus (slot 1 & 2 ops)
+ * @dev: pointer to the platform device dev structure
+ * @regs: mapped AC97 controller registers
+ * @done: bus ops wait here for an interrupt
+ */
+struct ep93xx_ac97_info {
+ struct mutex lock;
+ struct device *dev;
+ void __iomem *regs;
+ struct completion done;
+};
+
+/* currently ALSA only supports a single AC97 device */
+static struct ep93xx_ac97_info *ep93xx_ac97_info;
+
+static struct ep93xx_pcm_dma_params ep93xx_ac97_pcm_out = {
+ .name = "ac97-pcm-out",
+ .dma_port = EP93XX_DMA_AAC1,
+};
+
+static struct ep93xx_pcm_dma_params ep93xx_ac97_pcm_in = {
+ .name = "ac97-pcm-in",
+ .dma_port = EP93XX_DMA_AAC1,
+};
+
+static inline unsigned ep93xx_ac97_read_reg(struct ep93xx_ac97_info *info,
+ unsigned reg)
+{
+ return __raw_readl(info->regs + reg);
+}
+
+static inline void ep93xx_ac97_write_reg(struct ep93xx_ac97_info *info,
+ unsigned reg, unsigned val)
+{
+ __raw_writel(val, info->regs + reg);
+}
+
+static unsigned short ep93xx_ac97_read(struct snd_ac97 *ac97,
+ unsigned short reg)
+{
+ struct ep93xx_ac97_info *info = ep93xx_ac97_info;
+ unsigned short val;
+
+ mutex_lock(&info->lock);
+
+ ep93xx_ac97_write_reg(info, AC97S1DATA, reg);
+ ep93xx_ac97_write_reg(info, AC97IM, AC97_SLOT2RXVALID);
+ if (!wait_for_completion_timeout(&info->done, AC97_TIMEOUT)) {
+ dev_warn(info->dev, "timeout reading register %x\n", reg);
+ mutex_unlock(&info->lock);
+ return -ETIMEDOUT;
+ }
+ val = (unsigned short)ep93xx_ac97_read_reg(info, AC97S2DATA);
+
+ mutex_unlock(&info->lock);
+ return val;
+}
+
+static void ep93xx_ac97_write(struct snd_ac97 *ac97,
+ unsigned short reg,
+ unsigned short val)
+{
+ struct ep93xx_ac97_info *info = ep93xx_ac97_info;
+
+ mutex_lock(&info->lock);
+
+ /*
+ * Writes to the codec need to be done so that slot 2 is filled in
+ * before slot 1.
+ */
+ ep93xx_ac97_write_reg(info, AC97S2DATA, val);
+ ep93xx_ac97_write_reg(info, AC97S1DATA, reg);
+
+ ep93xx_ac97_write_reg(info, AC97IM, AC97_SLOT2TXCOMPLETE);
+ if (!wait_for_completion_timeout(&info->done, AC97_TIMEOUT))
+ dev_warn(info->dev, "timeout writing register %x\n", reg);
+
+ mutex_unlock(&info->lock);
+}
+
+static void ep93xx_ac97_warm_reset(struct snd_ac97 *ac97)
+{
+ struct ep93xx_ac97_info *info = ep93xx_ac97_info;
+
+ mutex_lock(&info->lock);
+
+ /*
+ * We are assuming that before this functions gets called, the codec
+ * BIT_CLK is stopped by forcing the codec into powerdown mode. We can
+ * control the SYNC signal directly via AC97SYNC register. Using
+ * TIMEDSYNC the controller will keep the SYNC high > 1us.
+ */
+ ep93xx_ac97_write_reg(info, AC97SYNC, AC97SYNC_TIMEDSYNC);
+ ep93xx_ac97_write_reg(info, AC97IM, AC97_CODECREADY);
+ if (!wait_for_completion_timeout(&info->done, AC97_TIMEOUT))
+ dev_warn(info->dev, "codec warm reset timeout\n");
+
+ mutex_unlock(&info->lock);
+}
+
+static void ep93xx_ac97_cold_reset(struct snd_ac97 *ac97)
+{
+ struct ep93xx_ac97_info *info = ep93xx_ac97_info;
+
+ mutex_lock(&info->lock);
+
+ /*
+ * For doing cold reset, we disable the AC97 controller interface, clear
+ * WINT and CODECREADY bits, and finally enable the interface again.
+ */
+ ep93xx_ac97_write_reg(info, AC97GCR, 0);
+ ep93xx_ac97_write_reg(info, AC97EOI, AC97EOI_CODECREADY | AC97EOI_WINT);
+ ep93xx_ac97_write_reg(info, AC97GCR, AC97GCR_AC97IFE);
+
+ /*
+ * Now, assert the reset and wait for the codec to become ready.
+ */
+ ep93xx_ac97_write_reg(info, AC97RESET, AC97RESET_TIMEDRESET);
+ ep93xx_ac97_write_reg(info, AC97IM, AC97_CODECREADY);
+ if (!wait_for_completion_timeout(&info->done, AC97_TIMEOUT))
+ dev_warn(info->dev, "codec cold reset timeout\n");
+
+ /*
+ * Give the codec some time to come fully out from the reset. This way
+ * we ensure that the subsequent reads/writes will work.
+ */
+ usleep_range(15000, 20000);
+
+ mutex_unlock(&info->lock);
+}
+
+static irqreturn_t ep93xx_ac97_interrupt(int irq, void *dev_id)
+{
+ struct ep93xx_ac97_info *info = dev_id;
+ unsigned status, mask;
+
+ /*
+ * Just mask out the interrupt and wake up the waiting thread.
+ * Interrupts are cleared via reading/writing to slot 1 & 2 registers by
+ * the waiting thread.
+ */
+ status = ep93xx_ac97_read_reg(info, AC97GIS);
+ mask = ep93xx_ac97_read_reg(info, AC97IM);
+ mask &= ~status;
+ ep93xx_ac97_write_reg(info, AC97IM, mask);
+
+ complete(&info->done);
+ return IRQ_HANDLED;
+}
+
+struct snd_ac97_bus_ops soc_ac97_ops = {
+ .read = ep93xx_ac97_read,
+ .write = ep93xx_ac97_write,
+ .reset = ep93xx_ac97_cold_reset,
+ .warm_reset = ep93xx_ac97_warm_reset,
+};
+EXPORT_SYMBOL_GPL(soc_ac97_ops);
+
+static int ep93xx_ac97_trigger(struct snd_pcm_substream *substream,
+ int cmd, struct snd_soc_dai *dai)
+{
+ struct ep93xx_ac97_info *info = snd_soc_dai_get_drvdata(dai);
+ unsigned v = 0;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ /*
+ * Enable compact mode, TX slots 3 & 4, and the TX FIFO
+ * itself.
+ */
+ v |= AC97TXCR_CM;
+ v |= AC97TXCR_TX3 | AC97TXCR_TX4;
+ v |= AC97TXCR_TEN;
+ ep93xx_ac97_write_reg(info, AC97TXCR(1), v);
+ } else {
+ /*
+ * Enable compact mode, RX slots 3 & 4, and the RX FIFO
+ * itself.
+ */
+ v |= AC97RXCR_CM;
+ v |= AC97RXCR_RX3 | AC97RXCR_RX4;
+ v |= AC97RXCR_REN;
+ ep93xx_ac97_write_reg(info, AC97RXCR(1), v);
+ }
+ break;
+
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ /*
+ * As per Cirrus EP93xx errata described below:
+ *
+ * http://www.cirrus.com/en/pubs/errata/ER667E2B.pdf
+ *
+ * we will wait for the TX FIFO to be empty before
+ * clearing the TEN bit.
+ */
+ unsigned long timeout = jiffies + AC97_TIMEOUT;
+
+ do {
+ v = ep93xx_ac97_read_reg(info, AC97SR(1));
+ if (time_after(jiffies, timeout)) {
+ dev_warn(info->dev, "TX timeout\n");
+ break;
+ }
+ } while (!(v & (AC97SR_TXFE | AC97SR_TXUE)));
+
+ /* disable the TX FIFO */
+ ep93xx_ac97_write_reg(info, AC97TXCR(1), 0);
+ } else {
+ /* disable the RX FIFO */
+ ep93xx_ac97_write_reg(info, AC97RXCR(1), 0);
+ }
+ break;
+
+ default:
+ dev_warn(info->dev, "unknown command %d\n", cmd);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int ep93xx_ac97_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct ep93xx_pcm_dma_params *dma_data;
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ dma_data = &ep93xx_ac97_pcm_out;
+ else
+ dma_data = &ep93xx_ac97_pcm_in;
+
+ snd_soc_dai_set_dma_data(dai, substream, dma_data);
+ return 0;
+}
+
+static const struct snd_soc_dai_ops ep93xx_ac97_dai_ops = {
+ .startup = ep93xx_ac97_startup,
+ .trigger = ep93xx_ac97_trigger,
+};
+
+static struct snd_soc_dai_driver ep93xx_ac97_dai = {
+ .name = "ep93xx-ac97",
+ .id = 0,
+ .ac97_control = 1,
+ .playback = {
+ .stream_name = "AC97 Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .stream_name = "AC97 Capture",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .ops = &ep93xx_ac97_dai_ops,
+};
+
+static int __devinit ep93xx_ac97_probe(struct platform_device *pdev)
+{
+ struct ep93xx_ac97_info *info;
+ struct resource *res;
+ unsigned int irq;
+ int ret;
+
+ info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+
+ info->regs = devm_request_and_ioremap(&pdev->dev, res);
+ if (!info->regs)
+ return -ENXIO;
+
+ irq = platform_get_irq(pdev, 0);
+ if (!irq)
+ return -ENODEV;
+
+ ret = devm_request_irq(&pdev->dev, irq, ep93xx_ac97_interrupt,
+ IRQF_TRIGGER_HIGH, pdev->name, info);
+ if (ret)
+ goto fail;
+
+ dev_set_drvdata(&pdev->dev, info);
+
+ mutex_init(&info->lock);
+ init_completion(&info->done);
+ info->dev = &pdev->dev;
+
+ ep93xx_ac97_info = info;
+ platform_set_drvdata(pdev, info);
+
+ ret = snd_soc_register_dai(&pdev->dev, &ep93xx_ac97_dai);
+ if (ret)
+ goto fail;
+
+ return 0;
+
+fail:
+ platform_set_drvdata(pdev, NULL);
+ ep93xx_ac97_info = NULL;
+ dev_set_drvdata(&pdev->dev, NULL);
+ return ret;
+}
+
+static int __devexit ep93xx_ac97_remove(struct platform_device *pdev)
+{
+ struct ep93xx_ac97_info *info = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_dai(&pdev->dev);
+
+ /* disable the AC97 controller */
+ ep93xx_ac97_write_reg(info, AC97GCR, 0);
+
+ platform_set_drvdata(pdev, NULL);
+ ep93xx_ac97_info = NULL;
+ dev_set_drvdata(&pdev->dev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver ep93xx_ac97_driver = {
+ .probe = ep93xx_ac97_probe,
+ .remove = __devexit_p(ep93xx_ac97_remove),
+ .driver = {
+ .name = "ep93xx-ac97",
+ .owner = THIS_MODULE,
+ },
+};
+
+module_platform_driver(ep93xx_ac97_driver);
+
+MODULE_DESCRIPTION("EP93xx AC97 ASoC Driver");
+MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ep93xx-ac97");
diff --git a/sound/soc/cirrus/ep93xx-i2s.c b/sound/soc/cirrus/ep93xx-i2s.c
new file mode 100644
index 00000000000..ac4a7515e7b
--- /dev/null
+++ b/sound/soc/cirrus/ep93xx-i2s.c
@@ -0,0 +1,451 @@
+/*
+ * linux/sound/soc/ep93xx-i2s.c
+ * EP93xx I2S driver
+ *
+ * Copyright (C) 2010 Ryan Mallon
+ *
+ * Based on the original driver by:
+ * Copyright (C) 2007 Chase Douglas <chasedouglas@gmail>
+ * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include <mach/hardware.h>
+#include <mach/ep93xx-regs.h>
+#include <linux/platform_data/dma-ep93xx.h>
+
+#include "ep93xx-pcm.h"
+
+#define EP93XX_I2S_TXCLKCFG 0x00
+#define EP93XX_I2S_RXCLKCFG 0x04
+#define EP93XX_I2S_GLCTRL 0x0C
+
+#define EP93XX_I2S_TXLINCTRLDATA 0x28
+#define EP93XX_I2S_TXCTRL 0x2C
+#define EP93XX_I2S_TXWRDLEN 0x30
+#define EP93XX_I2S_TX0EN 0x34
+
+#define EP93XX_I2S_RXLINCTRLDATA 0x58
+#define EP93XX_I2S_RXCTRL 0x5C
+#define EP93XX_I2S_RXWRDLEN 0x60
+#define EP93XX_I2S_RX0EN 0x64
+
+#define EP93XX_I2S_WRDLEN_16 (0 << 0)
+#define EP93XX_I2S_WRDLEN_24 (1 << 0)
+#define EP93XX_I2S_WRDLEN_32 (2 << 0)
+
+#define EP93XX_I2S_LINCTRLDATA_R_JUST (1 << 2) /* Right justify */
+
+#define EP93XX_I2S_CLKCFG_LRS (1 << 0) /* lrclk polarity */
+#define EP93XX_I2S_CLKCFG_CKP (1 << 1) /* Bit clock polarity */
+#define EP93XX_I2S_CLKCFG_REL (1 << 2) /* First bit transition */
+#define EP93XX_I2S_CLKCFG_MASTER (1 << 3) /* Master mode */
+#define EP93XX_I2S_CLKCFG_NBCG (1 << 4) /* Not bit clock gating */
+
+struct ep93xx_i2s_info {
+ struct clk *mclk;
+ struct clk *sclk;
+ struct clk *lrclk;
+ struct ep93xx_pcm_dma_params *dma_params;
+ void __iomem *regs;
+};
+
+struct ep93xx_pcm_dma_params ep93xx_i2s_dma_params[] = {
+ [SNDRV_PCM_STREAM_PLAYBACK] = {
+ .name = "i2s-pcm-out",
+ .dma_port = EP93XX_DMA_I2S1,
+ },
+ [SNDRV_PCM_STREAM_CAPTURE] = {
+ .name = "i2s-pcm-in",
+ .dma_port = EP93XX_DMA_I2S1,
+ },
+};
+
+static inline void ep93xx_i2s_write_reg(struct ep93xx_i2s_info *info,
+ unsigned reg, unsigned val)
+{
+ __raw_writel(val, info->regs + reg);
+}
+
+static inline unsigned ep93xx_i2s_read_reg(struct ep93xx_i2s_info *info,
+ unsigned reg)
+{
+ return __raw_readl(info->regs + reg);
+}
+
+static void ep93xx_i2s_enable(struct ep93xx_i2s_info *info, int stream)
+{
+ unsigned base_reg;
+ int i;
+
+ if ((ep93xx_i2s_read_reg(info, EP93XX_I2S_TX0EN) & 0x1) == 0 &&
+ (ep93xx_i2s_read_reg(info, EP93XX_I2S_RX0EN) & 0x1) == 0) {
+ /* Enable clocks */
+ clk_enable(info->mclk);
+ clk_enable(info->sclk);
+ clk_enable(info->lrclk);
+
+ /* Enable i2s */
+ ep93xx_i2s_write_reg(info, EP93XX_I2S_GLCTRL, 1);
+ }
+
+ /* Enable fifos */
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+ base_reg = EP93XX_I2S_TX0EN;
+ else
+ base_reg = EP93XX_I2S_RX0EN;
+ for (i = 0; i < 3; i++)
+ ep93xx_i2s_write_reg(info, base_reg + (i * 4), 1);
+}
+
+static void ep93xx_i2s_disable(struct ep93xx_i2s_info *info, int stream)
+{
+ unsigned base_reg;
+ int i;
+
+ /* Disable fifos */
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK)
+ base_reg = EP93XX_I2S_TX0EN;
+ else
+ base_reg = EP93XX_I2S_RX0EN;
+ for (i = 0; i < 3; i++)
+ ep93xx_i2s_write_reg(info, base_reg + (i * 4), 0);
+
+ if ((ep93xx_i2s_read_reg(info, EP93XX_I2S_TX0EN) & 0x1) == 0 &&
+ (ep93xx_i2s_read_reg(info, EP93XX_I2S_RX0EN) & 0x1) == 0) {
+ /* Disable i2s */
+ ep93xx_i2s_write_reg(info, EP93XX_I2S_GLCTRL, 0);
+
+ /* Disable clocks */
+ clk_disable(info->lrclk);
+ clk_disable(info->sclk);
+ clk_disable(info->mclk);
+ }
+}
+
+static int ep93xx_i2s_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct ep93xx_i2s_info *info = snd_soc_dai_get_drvdata(dai);
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+
+ snd_soc_dai_set_dma_data(cpu_dai, substream,
+ &info->dma_params[substream->stream]);
+ return 0;
+}
+
+static void ep93xx_i2s_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct ep93xx_i2s_info *info = snd_soc_dai_get_drvdata(dai);
+
+ ep93xx_i2s_disable(info, substream->stream);
+}
+
+static int ep93xx_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
+ unsigned int fmt)
+{
+ struct ep93xx_i2s_info *info = snd_soc_dai_get_drvdata(cpu_dai);
+ unsigned int clk_cfg, lin_ctrl;
+
+ clk_cfg = ep93xx_i2s_read_reg(info, EP93XX_I2S_RXCLKCFG);
+ lin_ctrl = ep93xx_i2s_read_reg(info, EP93XX_I2S_RXLINCTRLDATA);
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ clk_cfg |= EP93XX_I2S_CLKCFG_REL;
+ lin_ctrl &= ~EP93XX_I2S_LINCTRLDATA_R_JUST;
+ break;
+
+ case SND_SOC_DAIFMT_LEFT_J:
+ clk_cfg &= ~EP93XX_I2S_CLKCFG_REL;
+ lin_ctrl &= ~EP93XX_I2S_LINCTRLDATA_R_JUST;
+ break;
+
+ case SND_SOC_DAIFMT_RIGHT_J:
+ clk_cfg &= ~EP93XX_I2S_CLKCFG_REL;
+ lin_ctrl |= EP93XX_I2S_LINCTRLDATA_R_JUST;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ /* CPU is master */
+ clk_cfg |= EP93XX_I2S_CLKCFG_MASTER;
+ break;
+
+ case SND_SOC_DAIFMT_CBM_CFM:
+ /* Codec is master */
+ clk_cfg &= ~EP93XX_I2S_CLKCFG_MASTER;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ /* Negative bit clock, lrclk low on left word */
+ clk_cfg &= ~(EP93XX_I2S_CLKCFG_CKP | EP93XX_I2S_CLKCFG_REL);
+ break;
+
+ case SND_SOC_DAIFMT_NB_IF:
+ /* Negative bit clock, lrclk low on right word */
+ clk_cfg &= ~EP93XX_I2S_CLKCFG_CKP;
+ clk_cfg |= EP93XX_I2S_CLKCFG_REL;
+ break;
+
+ case SND_SOC_DAIFMT_IB_NF:
+ /* Positive bit clock, lrclk low on left word */
+ clk_cfg |= EP93XX_I2S_CLKCFG_CKP;
+ clk_cfg &= ~EP93XX_I2S_CLKCFG_REL;
+ break;
+
+ case SND_SOC_DAIFMT_IB_IF:
+ /* Positive bit clock, lrclk low on right word */
+ clk_cfg |= EP93XX_I2S_CLKCFG_CKP | EP93XX_I2S_CLKCFG_REL;
+ break;
+ }
+
+ /* Write new register values */
+ ep93xx_i2s_write_reg(info, EP93XX_I2S_RXCLKCFG, clk_cfg);
+ ep93xx_i2s_write_reg(info, EP93XX_I2S_TXCLKCFG, clk_cfg);
+ ep93xx_i2s_write_reg(info, EP93XX_I2S_RXLINCTRLDATA, lin_ctrl);
+ ep93xx_i2s_write_reg(info, EP93XX_I2S_TXLINCTRLDATA, lin_ctrl);
+ return 0;
+}
+
+static int ep93xx_i2s_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct ep93xx_i2s_info *info = snd_soc_dai_get_drvdata(dai);
+ unsigned word_len, div, sdiv, lrdiv;
+ int err;
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ word_len = EP93XX_I2S_WRDLEN_16;
+ break;
+
+ case SNDRV_PCM_FORMAT_S24_LE:
+ word_len = EP93XX_I2S_WRDLEN_24;
+ break;
+
+ case SNDRV_PCM_FORMAT_S32_LE:
+ word_len = EP93XX_I2S_WRDLEN_32;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ ep93xx_i2s_write_reg(info, EP93XX_I2S_TXWRDLEN, word_len);
+ else
+ ep93xx_i2s_write_reg(info, EP93XX_I2S_RXWRDLEN, word_len);
+
+ /*
+ * EP93xx I2S module can be setup so SCLK / LRCLK value can be
+ * 32, 64, 128. MCLK / SCLK value can be 2 and 4.
+ * We set LRCLK equal to `rate' and minimum SCLK / LRCLK
+ * value is 64, because our sample size is 32 bit * 2 channels.
+ * I2S standard permits us to transmit more bits than
+ * the codec uses.
+ */
+ div = clk_get_rate(info->mclk) / params_rate(params);
+ sdiv = 4;
+ if (div > (256 + 512) / 2) {
+ lrdiv = 128;
+ } else {
+ lrdiv = 64;
+ if (div < (128 + 256) / 2)
+ sdiv = 2;
+ }
+
+ err = clk_set_rate(info->sclk, clk_get_rate(info->mclk) / sdiv);
+ if (err)
+ return err;
+
+ err = clk_set_rate(info->lrclk, clk_get_rate(info->sclk) / lrdiv);
+ if (err)
+ return err;
+
+ ep93xx_i2s_enable(info, substream->stream);
+ return 0;
+}
+
+static int ep93xx_i2s_set_sysclk(struct snd_soc_dai *cpu_dai, int clk_id,
+ unsigned int freq, int dir)
+{
+ struct ep93xx_i2s_info *info = snd_soc_dai_get_drvdata(cpu_dai);
+
+ if (dir == SND_SOC_CLOCK_IN || clk_id != 0)
+ return -EINVAL;
+
+ return clk_set_rate(info->mclk, freq);
+}
+
+#ifdef CONFIG_PM
+static int ep93xx_i2s_suspend(struct snd_soc_dai *dai)
+{
+ struct ep93xx_i2s_info *info = snd_soc_dai_get_drvdata(dai);
+
+ if (!dai->active)
+ return 0;
+
+ ep93xx_i2s_disable(info, SNDRV_PCM_STREAM_PLAYBACK);
+ ep93xx_i2s_disable(info, SNDRV_PCM_STREAM_CAPTURE);
+
+ return 0;
+}
+
+static int ep93xx_i2s_resume(struct snd_soc_dai *dai)
+{
+ struct ep93xx_i2s_info *info = snd_soc_dai_get_drvdata(dai);
+
+ if (!dai->active)
+ return 0;
+
+ ep93xx_i2s_enable(info, SNDRV_PCM_STREAM_PLAYBACK);
+ ep93xx_i2s_enable(info, SNDRV_PCM_STREAM_CAPTURE);
+
+ return 0;
+}
+#else
+#define ep93xx_i2s_suspend NULL
+#define ep93xx_i2s_resume NULL
+#endif
+
+static const struct snd_soc_dai_ops ep93xx_i2s_dai_ops = {
+ .startup = ep93xx_i2s_startup,
+ .shutdown = ep93xx_i2s_shutdown,
+ .hw_params = ep93xx_i2s_hw_params,
+ .set_sysclk = ep93xx_i2s_set_sysclk,
+ .set_fmt = ep93xx_i2s_set_dai_fmt,
+};
+
+#define EP93XX_I2S_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_driver ep93xx_i2s_dai = {
+ .symmetric_rates= 1,
+ .suspend = ep93xx_i2s_suspend,
+ .resume = ep93xx_i2s_resume,
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = EP93XX_I2S_FORMATS,
+ },
+ .capture = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = EP93XX_I2S_FORMATS,
+ },
+ .ops = &ep93xx_i2s_dai_ops,
+};
+
+static int ep93xx_i2s_probe(struct platform_device *pdev)
+{
+ struct ep93xx_i2s_info *info;
+ struct resource *res;
+ int err;
+
+ info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+
+ info->regs = devm_request_and_ioremap(&pdev->dev, res);
+ if (!info->regs)
+ return -ENXIO;
+
+ info->mclk = clk_get(&pdev->dev, "mclk");
+ if (IS_ERR(info->mclk)) {
+ err = PTR_ERR(info->mclk);
+ goto fail;
+ }
+
+ info->sclk = clk_get(&pdev->dev, "sclk");
+ if (IS_ERR(info->sclk)) {
+ err = PTR_ERR(info->sclk);
+ goto fail_put_mclk;
+ }
+
+ info->lrclk = clk_get(&pdev->dev, "lrclk");
+ if (IS_ERR(info->lrclk)) {
+ err = PTR_ERR(info->lrclk);
+ goto fail_put_sclk;
+ }
+
+ dev_set_drvdata(&pdev->dev, info);
+ info->dma_params = ep93xx_i2s_dma_params;
+
+ err = snd_soc_register_dai(&pdev->dev, &ep93xx_i2s_dai);
+ if (err)
+ goto fail_put_lrclk;
+
+ return 0;
+
+fail_put_lrclk:
+ dev_set_drvdata(&pdev->dev, NULL);
+ clk_put(info->lrclk);
+fail_put_sclk:
+ clk_put(info->sclk);
+fail_put_mclk:
+ clk_put(info->mclk);
+fail:
+ return err;
+}
+
+static int __devexit ep93xx_i2s_remove(struct platform_device *pdev)
+{
+ struct ep93xx_i2s_info *info = dev_get_drvdata(&pdev->dev);
+
+ snd_soc_unregister_dai(&pdev->dev);
+ dev_set_drvdata(&pdev->dev, NULL);
+ clk_put(info->lrclk);
+ clk_put(info->sclk);
+ clk_put(info->mclk);
+ return 0;
+}
+
+static struct platform_driver ep93xx_i2s_driver = {
+ .probe = ep93xx_i2s_probe,
+ .remove = __devexit_p(ep93xx_i2s_remove),
+ .driver = {
+ .name = "ep93xx-i2s",
+ .owner = THIS_MODULE,
+ },
+};
+
+module_platform_driver(ep93xx_i2s_driver);
+
+MODULE_ALIAS("platform:ep93xx-i2s");
+MODULE_AUTHOR("Ryan Mallon");
+MODULE_DESCRIPTION("EP93XX I2S driver");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/cirrus/ep93xx-pcm.c b/sound/soc/cirrus/ep93xx-pcm.c
new file mode 100644
index 00000000000..665d9c94cc1
--- /dev/null
+++ b/sound/soc/cirrus/ep93xx-pcm.c
@@ -0,0 +1,242 @@
+/*
+ * linux/sound/arm/ep93xx-pcm.c - EP93xx ALSA PCM interface
+ *
+ * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
+ * Copyright (C) 2006 Applied Data Systems
+ *
+ * Rewritten for the SoC audio subsystem (Based on PXA2xx code):
+ * Copyright (c) 2008 Ryan Mallon
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/dmaengine.h>
+#include <linux/dma-mapping.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/dmaengine_pcm.h>
+
+#include <linux/platform_data/dma-ep93xx.h>
+#include <mach/hardware.h>
+#include <mach/ep93xx-regs.h>
+
+#include "ep93xx-pcm.h"
+
+static const struct snd_pcm_hardware ep93xx_pcm_hardware = {
+ .info = (SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER),
+
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .rate_min = SNDRV_PCM_RATE_8000,
+ .rate_max = SNDRV_PCM_RATE_192000,
+
+ .formats = (SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S24_LE |
+ SNDRV_PCM_FMTBIT_S32_LE),
+
+ .buffer_bytes_max = 131072,
+ .period_bytes_min = 32,
+ .period_bytes_max = 32768,
+ .periods_min = 1,
+ .periods_max = 32,
+ .fifo_size = 32,
+};
+
+static bool ep93xx_pcm_dma_filter(struct dma_chan *chan, void *filter_param)
+{
+ struct ep93xx_dma_data *data = filter_param;
+
+ if (data->direction == ep93xx_dma_chan_direction(chan)) {
+ chan->private = data;
+ return true;
+ }
+
+ return false;
+}
+
+static int ep93xx_pcm_open(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ struct ep93xx_pcm_dma_params *dma_params;
+ struct ep93xx_dma_data *dma_data;
+ int ret;
+
+ snd_soc_set_runtime_hwparams(substream, &ep93xx_pcm_hardware);
+
+ dma_data = kmalloc(sizeof(*dma_data), GFP_KERNEL);
+ if (!dma_data)
+ return -ENOMEM;
+
+ dma_params = snd_soc_dai_get_dma_data(cpu_dai, substream);
+ dma_data->port = dma_params->dma_port;
+ dma_data->name = dma_params->name;
+ dma_data->direction = snd_pcm_substream_to_dma_direction(substream);
+
+ ret = snd_dmaengine_pcm_open(substream, ep93xx_pcm_dma_filter, dma_data);
+ if (ret) {
+ kfree(dma_data);
+ return ret;
+ }
+
+ snd_dmaengine_pcm_set_data(substream, dma_data);
+
+ return 0;
+}
+
+static int ep93xx_pcm_close(struct snd_pcm_substream *substream)
+{
+ struct dma_data *dma_data = snd_dmaengine_pcm_get_data(substream);
+
+ snd_dmaengine_pcm_close(substream);
+ kfree(dma_data);
+ return 0;
+}
+
+static int ep93xx_pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
+
+ return 0;
+}
+
+static int ep93xx_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+ snd_pcm_set_runtime_buffer(substream, NULL);
+ return 0;
+}
+
+static int ep93xx_pcm_mmap(struct snd_pcm_substream *substream,
+ struct vm_area_struct *vma)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ return dma_mmap_writecombine(substream->pcm->card->dev, vma,
+ runtime->dma_area,
+ runtime->dma_addr,
+ runtime->dma_bytes);
+}
+
+static struct snd_pcm_ops ep93xx_pcm_ops = {
+ .open = ep93xx_pcm_open,
+ .close = ep93xx_pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = ep93xx_pcm_hw_params,
+ .hw_free = ep93xx_pcm_hw_free,
+ .trigger = snd_dmaengine_pcm_trigger,
+ .pointer = snd_dmaengine_pcm_pointer_no_residue,
+ .mmap = ep93xx_pcm_mmap,
+};
+
+static int ep93xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
+{
+ struct snd_pcm_substream *substream = pcm->streams[stream].substream;
+ struct snd_dma_buffer *buf = &substream->dma_buffer;
+ size_t size = ep93xx_pcm_hardware.buffer_bytes_max;
+
+ buf->dev.type = SNDRV_DMA_TYPE_DEV;
+ buf->dev.dev = pcm->card->dev;
+ buf->private_data = NULL;
+ buf->area = dma_alloc_writecombine(pcm->card->dev, size,
+ &buf->addr, GFP_KERNEL);
+ buf->bytes = size;
+
+ return (buf->area == NULL) ? -ENOMEM : 0;
+}
+
+static void ep93xx_pcm_free_dma_buffers(struct snd_pcm *pcm)
+{
+ struct snd_pcm_substream *substream;
+ struct snd_dma_buffer *buf;
+ int stream;
+
+ for (stream = 0; stream < 2; stream++) {
+ substream = pcm->streams[stream].substream;
+ if (!substream)
+ continue;
+
+ buf = &substream->dma_buffer;
+ if (!buf->area)
+ continue;
+
+ dma_free_writecombine(pcm->card->dev, buf->bytes, buf->area,
+ buf->addr);
+ buf->area = NULL;
+ }
+}
+
+static u64 ep93xx_pcm_dmamask = DMA_BIT_MASK(32);
+
+static int ep93xx_pcm_new(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_card *card = rtd->card->snd_card;
+ struct snd_pcm *pcm = rtd->pcm;
+ int ret = 0;
+
+ if (!card->dev->dma_mask)
+ card->dev->dma_mask = &ep93xx_pcm_dmamask;
+ if (!card->dev->coherent_dma_mask)
+ card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+
+ if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
+ ret = ep93xx_pcm_preallocate_dma_buffer(pcm,
+ SNDRV_PCM_STREAM_PLAYBACK);
+ if (ret)
+ return ret;
+ }
+
+ if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
+ ret = ep93xx_pcm_preallocate_dma_buffer(pcm,
+ SNDRV_PCM_STREAM_CAPTURE);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static struct snd_soc_platform_driver ep93xx_soc_platform = {
+ .ops = &ep93xx_pcm_ops,
+ .pcm_new = &ep93xx_pcm_new,
+ .pcm_free = &ep93xx_pcm_free_dma_buffers,
+};
+
+static int __devinit ep93xx_soc_platform_probe(struct platform_device *pdev)
+{
+ return snd_soc_register_platform(&pdev->dev, &ep93xx_soc_platform);
+}
+
+static int __devexit ep93xx_soc_platform_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_platform(&pdev->dev);
+ return 0;
+}
+
+static struct platform_driver ep93xx_pcm_driver = {
+ .driver = {
+ .name = "ep93xx-pcm-audio",
+ .owner = THIS_MODULE,
+ },
+
+ .probe = ep93xx_soc_platform_probe,
+ .remove = __devexit_p(ep93xx_soc_platform_remove),
+};
+
+module_platform_driver(ep93xx_pcm_driver);
+
+MODULE_AUTHOR("Ryan Mallon");
+MODULE_DESCRIPTION("EP93xx ALSA PCM interface");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ep93xx-pcm-audio");
diff --git a/sound/soc/cirrus/ep93xx-pcm.h b/sound/soc/cirrus/ep93xx-pcm.h
new file mode 100644
index 00000000000..111e1121ecb
--- /dev/null
+++ b/sound/soc/cirrus/ep93xx-pcm.h
@@ -0,0 +1,20 @@
+/*
+ * sound/soc/ep93xx/ep93xx-pcm.h - EP93xx ALSA PCM interface
+ *
+ * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
+ * Copyright (C) 2006 Applied Data Systems
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _EP93XX_SND_SOC_PCM_H
+#define _EP93XX_SND_SOC_PCM_H
+
+struct ep93xx_pcm_dma_params {
+ char *name;
+ int dma_port;
+};
+
+#endif /* _EP93XX_SND_SOC_PCM_H */
diff --git a/sound/soc/cirrus/simone.c b/sound/soc/cirrus/simone.c
new file mode 100644
index 00000000000..dd997094eb3
--- /dev/null
+++ b/sound/soc/cirrus/simone.c
@@ -0,0 +1,90 @@
+/*
+ * simone.c -- ASoC audio for Simplemachines Sim.One board
+ *
+ * Copyright (c) 2010 Mika Westerberg
+ *
+ * Based on snappercl15 machine driver by Ryan Mallon.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+
+#include "ep93xx-pcm.h"
+
+static struct snd_soc_dai_link simone_dai = {
+ .name = "AC97",
+ .stream_name = "AC97 HiFi",
+ .cpu_dai_name = "ep93xx-ac97",
+ .codec_dai_name = "ac97-hifi",
+ .codec_name = "ac97-codec",
+ .platform_name = "ep93xx-pcm-audio",
+};
+
+static struct snd_soc_card snd_soc_simone = {
+ .name = "Sim.One",
+ .owner = THIS_MODULE,
+ .dai_link = &simone_dai,
+ .num_links = 1,
+};
+
+static struct platform_device *simone_snd_ac97_device;
+
+static int __devinit simone_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &snd_soc_simone;
+ int ret;
+
+ simone_snd_ac97_device = platform_device_register_simple("ac97-codec",
+ -1, NULL, 0);
+ if (IS_ERR(simone_snd_ac97_device))
+ return PTR_ERR(simone_snd_ac97_device);
+
+ card->dev = &pdev->dev;
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+ ret);
+ platform_device_unregister(simone_snd_ac97_device);
+ }
+
+ return ret;
+}
+
+static int __devexit simone_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_card(card);
+ platform_device_unregister(simone_snd_ac97_device);
+
+ return 0;
+}
+
+static struct platform_driver simone_driver = {
+ .driver = {
+ .name = "simone-audio",
+ .owner = THIS_MODULE,
+ },
+ .probe = simone_probe,
+ .remove = __devexit_p(simone_remove),
+};
+
+module_platform_driver(simone_driver);
+
+MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One");
+MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:simone-audio");
diff --git a/sound/soc/cirrus/snappercl15.c b/sound/soc/cirrus/snappercl15.c
new file mode 100644
index 00000000000..a193cea3cf3
--- /dev/null
+++ b/sound/soc/cirrus/snappercl15.c
@@ -0,0 +1,146 @@
+/*
+ * snappercl15.c -- SoC audio for Bluewater Systems Snapper CL15 module
+ *
+ * Copyright (C) 2008 Bluewater Systems Ltd
+ * Author: Ryan Mallon
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+
+#include "../codecs/tlv320aic23.h"
+#include "ep93xx-pcm.h"
+
+#define CODEC_CLOCK 5644800
+
+static int snappercl15_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+ int err;
+
+ err = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK,
+ SND_SOC_CLOCK_IN);
+ if (err)
+ return err;
+
+ err = snd_soc_dai_set_sysclk(cpu_dai, 0, CODEC_CLOCK,
+ SND_SOC_CLOCK_OUT);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+static struct snd_soc_ops snappercl15_ops = {
+ .hw_params = snappercl15_hw_params,
+};
+
+static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_LINE("Line In", NULL),
+ SND_SOC_DAPM_MIC("Mic Jack", NULL),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+ {"Headphone Jack", NULL, "LHPOUT"},
+ {"Headphone Jack", NULL, "RHPOUT"},
+
+ {"LLINEIN", NULL, "Line In"},
+ {"RLINEIN", NULL, "Line In"},
+
+ {"MICIN", NULL, "Mic Jack"},
+};
+
+static int snappercl15_tlv320aic23_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_codec *codec = rtd->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+
+ snd_soc_dapm_new_controls(dapm, tlv320aic23_dapm_widgets,
+ ARRAY_SIZE(tlv320aic23_dapm_widgets));
+
+ snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
+ return 0;
+}
+
+static struct snd_soc_dai_link snappercl15_dai = {
+ .name = "tlv320aic23",
+ .stream_name = "AIC23",
+ .cpu_dai_name = "ep93xx-i2s",
+ .codec_dai_name = "tlv320aic23-hifi",
+ .codec_name = "tlv320aic23-codec.0-001a",
+ .platform_name = "ep93xx-pcm-audio",
+ .init = snappercl15_tlv320aic23_init,
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_IF |
+ SND_SOC_DAIFMT_CBS_CFS,
+ .ops = &snappercl15_ops,
+};
+
+static struct snd_soc_card snd_soc_snappercl15 = {
+ .name = "Snapper CL15",
+ .owner = THIS_MODULE,
+ .dai_link = &snappercl15_dai,
+ .num_links = 1,
+};
+
+static int __devinit snappercl15_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &snd_soc_snappercl15;
+ int ret;
+
+ ret = ep93xx_i2s_acquire();
+ if (ret)
+ return ret;
+
+ card->dev = &pdev->dev;
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+ ret);
+ ep93xx_i2s_release();
+ }
+
+ return ret;
+}
+
+static int __devexit snappercl15_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_card(card);
+ ep93xx_i2s_release();
+
+ return 0;
+}
+
+static struct platform_driver snappercl15_driver = {
+ .driver = {
+ .name = "snappercl15-audio",
+ .owner = THIS_MODULE,
+ },
+ .probe = snappercl15_probe,
+ .remove = __devexit_p(snappercl15_remove),
+};
+
+module_platform_driver(snappercl15_driver);
+
+MODULE_AUTHOR("Ryan Mallon");
+MODULE_DESCRIPTION("ALSA SoC Snapper CL15");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:snappercl15-audio");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-20 03:09:55 +0000