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authorlars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-01-11 04:44:45 +0000
committerlars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-01-11 04:44:45 +0000
commit809c03fe4c0f90c640b26e6a2792553b592c68f2 (patch)
tree9f8851bc32dbcd5a39bcb13ecf294dff3902aeab /target/linux/xburst/files-2.6.32/sound/soc/jz4740
parent19682a7752733bc6a45026d69c27575b9b7755fd (diff)
Merge xburst target.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19098 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/xburst/files-2.6.32/sound/soc/jz4740')
-rw-r--r--target/linux/xburst/files-2.6.32/sound/soc/jz4740/Kconfig29
-rw-r--r--target/linux/xburst/files-2.6.32/sound/soc/jz4740/Makefile15
-rw-r--r--target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.c552
-rw-r--r--target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.h18
-rw-r--r--target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.c342
-rw-r--r--target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.h22
-rw-r--r--target/linux/xburst/files-2.6.32/sound/soc/jz4740/n526.c169
-rw-r--r--target/linux/xburst/files-2.6.32/sound/soc/jz4740/qi_lb60.c182
8 files changed, 1329 insertions, 0 deletions
diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Kconfig b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Kconfig
new file mode 100644
index 0000000000..b19fd8fd86
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Kconfig
@@ -0,0 +1,29 @@
+config SND_JZ4740_SOC
+ tristate "SoC Audio for Ingenic JZ4740 SoC"
+ depends on SOC_JZ4740 && SND_SOC
+ help
+ Say Y or M if you want to add support for codecs attached to
+ the Jz4740 AC97, I2S or SSP interface. You will also need
+ to select the audio interfaces to support below.
+
+config SND_JZ4740_SOC_QI_LB60
+ tristate "SoC Audio support for Qi Hardware Ben Nanonote"
+ depends on SND_JZ4740_SOC && JZ4740_QI_LB60
+ select SND_JZ4740_SOC_I2S
+ select SND_SOC_JZCODEC
+ help
+ Say Y if you want to add support for SoC audio of internal codec on Ingenic Jz4740 QI_LB60 board.
+
+config SND_JZ4740_SOC_N526
+ tristate "SoC Audio support for Hanvon N526 eBook reader"
+ depends on SND_JZ4740_SOC && JZ4740_N526
+ select SND_JZ4740_SOC_I2S
+ select SND_SOC_JZCODEC
+ help
+ Say Y if you want to enable support for SoC audio on the Hanvon N526.
+
+config SND_JZ4740_SOC_I2S
+ depends on SND_JZ4740_SOC
+ tristate "SoC Audio (I2S protocol) for Ingenic jz4740 chip"
+ help
+ Say Y if you want to use I2S protocol and I2S codec on Ingenic Jz4740 QI_LB60 board.
diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Makefile b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Makefile
new file mode 100644
index 0000000000..0b429cf01b
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/Makefile
@@ -0,0 +1,15 @@
+#
+# Jz4740 Platform Support
+#
+snd-soc-jz4740-objs := jz4740-pcm.o
+snd-soc-jz4740-i2s-objs := jz4740-i2s.o
+
+obj-$(CONFIG_SND_JZ4740_SOC) += snd-soc-jz4740.o
+obj-$(CONFIG_SND_JZ4740_SOC_I2S) += snd-soc-jz4740-i2s.o
+
+# Jz4740 Machine Support
+snd-soc-qi-lb60-objs := qi_lb60.o
+snd-soc-n526-objs := n526.o
+
+obj-$(CONFIG_SND_JZ4740_SOC_QI_LB60) += snd-soc-qi-lb60.o
+obj-$(CONFIG_SND_JZ4740_SOC_N526) += snd-soc-n526.o
diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.c b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.c
new file mode 100644
index 0000000000..8853a735c9
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.c
@@ -0,0 +1,552 @@
+/*
+ * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * 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.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+
+#include "jz4740-i2s.h"
+#include "jz4740-pcm.h"
+
+#define JZ_REG_AIC_CONF 0x00
+#define JZ_REG_AIC_CTRL 0x04
+#define JZ_REG_AIC_I2S_FMT 0x10
+#define JZ_REG_AIC_FIFO_STATUS 0x14
+#define JZ_REG_AIC_I2S_STATUS 0x1c
+#define JZ_REG_AIC_CLK_DIV 0x30
+#define JZ_REG_AIC_FIFO 0x34
+
+#define JZ_AIC_CONF_FIFO_RX_THRESHOLD_MASK (0xf << 12)
+#define JZ_AIC_CONF_FIFO_TX_THRESHOLD_MASK (0xf << 8)
+#define JZ_AIC_CONF_OVERFLOW_PLAY_LAST BIT(6)
+#define JZ_AIC_CONF_INTERNAL_CODEC BIT(5)
+#define JZ_AIC_CONF_I2S BIT(4)
+#define JZ_AIC_CONF_RESET BIT(3)
+#define JZ_AIC_CONF_BIT_CLK_MASTER BIT(2)
+#define JZ_AIC_CONF_SYNC_CLK_MASTER BIT(1)
+#define JZ_AIC_CONF_ENABLE BIT(0)
+
+#define JZ_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET 12
+#define JZ_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET 8
+
+#define JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_MASK (0x7 << 19)
+#define JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_MASK (0x7 << 16)
+#define JZ_AIC_CTRL_ENABLE_RX_DMA BIT(15)
+#define JZ_AIC_CTRL_ENABLE_TX_DMA BIT(14)
+#define JZ_AIC_CTRL_MONO_TO_STEREO BIT(11)
+#define JZ_AIC_CTRL_SWITCH_ENDIANNESS BIT(10)
+#define JZ_AIC_CTRL_SIGNED_TO_UNSIGNED BIT(9)
+#define JZ_AIC_CTRL_FLUSH BIT(8)
+#define JZ_AIC_CTRL_ENABLE_ROR_INT BIT(6)
+#define JZ_AIC_CTRL_ENABLE_TUR_INT BIT(5)
+#define JZ_AIC_CTRL_ENABLE_RFS_INT BIT(4)
+#define JZ_AIC_CTRL_ENABLE_TFS_INT BIT(3)
+#define JZ_AIC_CTRL_ENABLE_LOOPBACK BIT(2)
+#define JZ_AIC_CTRL_ENABLE_PLAYBACK BIT(1)
+#define JZ_AIC_CTRL_ENABLE_CAPTURE BIT(0)
+
+#define JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_OFFSET 19
+#define JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_OFFSET 16
+
+#define JZ_AIC_I2S_FMT_DISABLE_BIT_CLK BIT(12)
+#define JZ_AIC_I2S_FMT_ENABLE_SYS_CLK BIT(4)
+#define JZ_AIC_I2S_FMT_MSB BIT(0)
+
+#define JZ_AIC_I2S_STATUS_BUSY BIT(2)
+
+#define JZ_AIC_CLK_DIV_MASK 0xf
+
+struct jz4740_i2s {
+ struct resource *mem;
+ void __iomem *base;
+ dma_addr_t phys_base;
+
+ struct clk *clk;
+
+ struct jz4740_pcm_config pcm_config;
+};
+
+static struct jz4740_dma_config jz4740_i2s_dma_playback_config = {
+ .src_width = JZ4740_DMA_WIDTH_16BIT,
+ .dst_width = JZ4740_DMA_WIDTH_32BIT,
+ .transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE,
+ .request_type = JZ4740_DMA_TYPE_AIC_TRANSMIT,
+ .flags = JZ4740_DMA_SRC_AUTOINC,
+ .mode = JZ4740_DMA_MODE_SINGLE,
+};
+
+static struct jz4740_dma_config jz4740_i2s_dma_capture_config = {
+ .src_width = JZ4740_DMA_WIDTH_32BIT,
+ .dst_width = JZ4740_DMA_WIDTH_16BIT,
+ .transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE,
+ .request_type = JZ4740_DMA_TYPE_AIC_RECEIVE,
+ .flags = JZ4740_DMA_DST_AUTOINC,
+ .mode = JZ4740_DMA_MODE_SINGLE,
+};
+
+
+static inline uint32_t jz4740_i2s_read(const struct jz4740_i2s *i2s, unsigned int reg)
+{
+ return readl(i2s->base + reg);
+}
+
+static inline void jz4740_i2s_write(const struct jz4740_i2s *i2s, unsigned
+int reg, uint32_t value)
+{
+ writel(value, i2s->base + reg);
+}
+
+static inline struct jz4740_i2s *jz4740_dai_to_i2s(struct snd_soc_dai *dai)
+{
+ return dai->private_data;
+}
+
+static int jz4740_i2s_startup(struct snd_pcm_substream *substream, struct
+ snd_soc_dai *dai)
+{
+ struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+ uint32_t conf, ctrl;
+
+ if (dai->active)
+ return 0;
+
+ conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);
+ ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL);
+
+ conf |= JZ_AIC_CONF_ENABLE;
+ ctrl |= JZ_AIC_CTRL_FLUSH;
+
+
+ jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl);
+ clk_enable(i2s->clk);
+ jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);
+
+ return 0;
+}
+
+static void jz4740_i2s_shutdown(struct snd_pcm_substream *substream, struct
+ snd_soc_dai *dai)
+{
+ struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+ uint32_t conf;
+
+ if (dai->active)
+ return;
+
+ conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);
+ conf &= ~JZ_AIC_CONF_ENABLE;
+ jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);
+
+ clk_disable(i2s->clk);
+}
+
+
+static int jz4740_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+ bool playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
+
+ uint32_t ctrl;
+ uint32_t mask;
+
+ if (playback) {
+ mask = JZ_AIC_CTRL_ENABLE_PLAYBACK |
+ JZ_AIC_CTRL_ENABLE_TX_DMA;
+ } else {
+ mask = JZ_AIC_CTRL_ENABLE_CAPTURE |
+ JZ_AIC_CTRL_ENABLE_RX_DMA;
+ }
+
+ ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL);
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ ctrl |= mask;
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ ctrl &= ~mask;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL,ctrl);
+
+ return 0;
+}
+
+
+static int jz4740_i2s_set_fmt(struct snd_soc_dai *dai,
+ unsigned int fmt)
+{
+ struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+
+ uint32_t format = 0;
+ uint32_t conf;
+
+ conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);
+
+ conf &= ~(JZ_AIC_CONF_BIT_CLK_MASTER | JZ_AIC_CONF_SYNC_CLK_MASTER);
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ conf |= JZ_AIC_CONF_BIT_CLK_MASTER |
+ JZ_AIC_CONF_SYNC_CLK_MASTER;
+ format |= JZ_AIC_I2S_FMT_ENABLE_SYS_CLK;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFS:
+ conf |= JZ_AIC_CONF_SYNC_CLK_MASTER;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFM:
+ conf |= JZ_AIC_CONF_BIT_CLK_MASTER;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFM:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_MSB:
+ format |= JZ_AIC_I2S_FMT_MSB;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);
+ jz4740_i2s_write(i2s, JZ_REG_AIC_I2S_FMT, format);
+
+ return 0;
+}
+
+static int jz4740_i2s_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+ bool playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
+ int sample_size;
+ enum jz4740_dma_width dma_width;
+ uint32_t ctrl;
+
+ ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL);
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S8:
+ sample_size = 0;
+ dma_width = JZ4740_DMA_WIDTH_8BIT;
+ break;
+ case SNDRV_PCM_FORMAT_S16:
+ sample_size = 1;
+ dma_width = JZ4740_DMA_WIDTH_16BIT;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (playback) {
+ ctrl &= ~JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_MASK;
+ ctrl |= sample_size << JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_OFFSET;
+ } else {
+ ctrl &= ~JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_MASK;
+ ctrl |= sample_size << JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_OFFSET;
+ }
+
+ switch (params_channels(params)) {
+ case 2:
+ break;
+ case 1:
+ if (playback) {
+ ctrl |= JZ_AIC_CTRL_MONO_TO_STEREO;
+ break;
+ }
+ default:
+ return -EINVAL;
+ }
+
+ jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl);
+
+ /* This is quite ugly, but apperently it's offical method for passing dma
+ * config to the pcm module */
+ if (playback) {
+ jz4740_i2s_dma_playback_config.src_width = dma_width;
+ i2s->pcm_config.dma_config = &jz4740_i2s_dma_playback_config;
+ } else {
+ jz4740_i2s_dma_capture_config.dst_width = dma_width;
+ i2s->pcm_config.dma_config = &jz4740_i2s_dma_capture_config;
+ }
+ i2s->pcm_config.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO;
+
+ dai->dma_data = &i2s->pcm_config;
+
+ return 0;
+}
+
+static int jz4740_i2s_set_clkdiv(struct snd_soc_dai *dai,
+ int div_id, int div)
+{
+ struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+
+ switch (div_id) {
+ case JZ4740_I2S_BIT_CLK:
+ if (div & 1 || div > 16)
+ return -EINVAL;
+ jz4740_i2s_write(i2s, JZ_REG_AIC_CLK_DIV, div - 1);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int jz4740_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id,
+ unsigned int freq, int dir)
+{
+ struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+ int ret = 0;
+ struct clk *parent;
+
+ switch (clk_id) {
+ case JZ4740_I2S_CLKSRC_EXT:
+ parent = clk_get(NULL, "ext");
+ clk_set_parent(i2s->clk, parent);
+ break;
+ case JZ4740_I2S_CLKSRC_PLL:
+ parent = clk_get(NULL, "pll half");
+ clk_set_parent(i2s->clk, parent);
+ ret = clk_set_rate(i2s->clk, freq);
+ break;
+ default:
+ return -EINVAL;
+ }
+ clk_put(parent);
+
+ return ret;
+}
+
+static int jz4740_i2s_suspend(struct snd_soc_dai *dai)
+{
+ struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+ uint32_t conf;
+
+ if (!dai->active)
+ return 0;
+
+ conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);
+ conf &= ~JZ_AIC_CONF_ENABLE;
+ jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);
+
+ clk_disable(i2s->clk);
+ return 0;
+}
+
+static int jz4740_i2s_resume(struct snd_soc_dai *dai)
+{
+ struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+ uint32_t conf;
+
+ if (!dai->active)
+ return 0;
+
+ clk_enable(i2s->clk);
+
+ conf = jz4740_i2s_read(i2s, JZ_REG_AIC_CONF);
+ conf |= JZ_AIC_CONF_ENABLE;
+ jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);
+
+ return 0;
+}
+
+
+static int jz4740_i2s_probe(struct platform_device *pdev, struct snd_soc_dai *dai)
+{
+ struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
+ uint32_t conf;
+
+ conf = (7 << JZ_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET) |
+ (8 << JZ_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET) |
+ JZ_AIC_CONF_OVERFLOW_PLAY_LAST |
+ JZ_AIC_CONF_I2S |
+ JZ_AIC_CONF_INTERNAL_CODEC;
+
+ jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, JZ_AIC_CONF_RESET);
+ jz4740_i2s_write(i2s, JZ_REG_AIC_CONF, conf);
+
+ return 0;
+}
+
+
+static struct snd_soc_dai_ops jz4740_i2s_dai_ops = {
+ .startup = jz4740_i2s_startup,
+ .shutdown = jz4740_i2s_shutdown,
+ .trigger = jz4740_i2s_trigger,
+ .hw_params = jz4740_i2s_hw_params,
+ .set_fmt = jz4740_i2s_set_fmt,
+ .set_clkdiv = jz4740_i2s_set_clkdiv,
+ .set_sysclk = jz4740_i2s_set_sysclk,
+};
+
+#define JZ4740_I2S_FMTS (SNDRV_PCM_FMTBIT_S8 | \
+ SNDRV_PCM_FMTBIT_S16_LE)
+
+struct snd_soc_dai jz4740_i2s_dai = {
+ .name = "jz4740-i2s",
+ .probe = jz4740_i2s_probe,
+ .playback = {
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_44100,
+ .formats = JZ4740_I2S_FMTS,
+ },
+ .capture = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_44100,
+ .formats = JZ4740_I2S_FMTS,
+ },
+ .symmetric_rates = 1,
+ .ops = &jz4740_i2s_dai_ops,
+ .suspend = jz4740_i2s_suspend,
+ .resume = jz4740_i2s_resume,
+};
+
+static int __devinit jz4740_i2s_dev_probe(struct platform_device *pdev)
+{
+ struct jz4740_i2s *i2s;
+ int ret;
+
+ i2s = kzalloc(sizeof(*i2s), GFP_KERNEL);
+
+ if (!i2s)
+ return -ENOMEM;
+
+ i2s->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+ if (!i2s->mem) {
+ ret = -ENOENT;
+ goto err_free;
+ }
+
+ i2s->mem = request_mem_region(i2s->mem->start, resource_size(i2s->mem),
+ pdev->name);
+
+ if (!i2s->mem) {
+ ret = -EBUSY;
+ goto err_free;
+ }
+
+ i2s->base = ioremap_nocache(i2s->mem->start, resource_size(i2s->mem));
+
+ if (!i2s->base) {
+ ret = -EBUSY;
+ goto err_release_mem_region;
+ }
+
+ i2s->phys_base = i2s->mem->start;
+
+ jz4740_i2s_dai.private_data = i2s;
+
+ ret = snd_soc_register_dai(&jz4740_i2s_dai);
+
+ i2s->clk = clk_get(&pdev->dev, "i2s");
+
+ if (IS_ERR(i2s->clk)) {
+ ret = PTR_ERR(i2s->clk);
+ goto err_iounmap;
+ }
+
+ platform_set_drvdata(pdev, i2s);
+
+ return 0;
+
+err_iounmap:
+ iounmap(i2s->base);
+err_release_mem_region:
+ release_mem_region(i2s->mem->start, resource_size(i2s->mem));
+err_free:
+ kfree(i2s);
+
+ return ret;
+}
+
+static int __devexit jz4740_i2s_dev_remove(struct platform_device *pdev)
+{
+ struct jz4740_i2s *i2s = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_dai(&jz4740_i2s_dai);
+
+ clk_put(i2s->clk);
+
+ iounmap(i2s->base);
+ release_mem_region(i2s->mem->start, resource_size(i2s->mem));
+
+ platform_set_drvdata(pdev, NULL);
+ kfree(i2s);
+
+ return 0;
+}
+
+static struct platform_driver jz4740_i2s_driver = {
+ .probe = jz4740_i2s_dev_probe,
+ .remove = __devexit_p(jz4740_i2s_dev_remove),
+ .driver = {
+ .name = "jz4740-i2s",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init jz4740_i2s_init(void)
+{
+ return platform_driver_register(&jz4740_i2s_driver);
+}
+module_init(jz4740_i2s_init);
+
+static void __exit jz4740_i2s_exit(void)
+{
+ platform_driver_unregister(&jz4740_i2s_driver);
+}
+module_exit(jz4740_i2s_exit);
+
+MODULE_AUTHOR("Lars-Peter Clausen, <lars@metafoo.de>");
+MODULE_DESCRIPTION("Ingenic JZ4740 SoC I2S driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:jz4740-i2s");
diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.h b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.h
new file mode 100644
index 0000000000..da22ed88a5
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-i2s.h
@@ -0,0 +1,18 @@
+/*
+ * 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 _JZ4740_I2S_H
+#define _JZ4740_I2S_H
+
+/* I2S clock source */
+#define JZ4740_I2S_CLKSRC_EXT 0
+#define JZ4740_I2S_CLKSRC_PLL 1
+
+#define JZ4740_I2S_BIT_CLK 0
+
+extern struct snd_soc_dai jz4740_i2s_dai;
+
+#endif
diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.c b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.c
new file mode 100644
index 0000000000..c71c5b48b5
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.c
@@ -0,0 +1,342 @@
+/*
+ * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * 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.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <asm/mach-jz4740/dma.h>
+#include "jz4740-pcm.h"
+
+struct jz4740_runtime_data {
+ unsigned int dma_period;
+ dma_addr_t dma_start;
+ dma_addr_t dma_pos;
+ dma_addr_t dma_end;
+
+ struct jz4740_dma_chan *dma;
+
+ dma_addr_t fifo_addr;
+};
+
+/* identify hardware playback capabilities */
+static const struct snd_pcm_hardware jz4740_pcm_hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S8,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .channels_min = 1,
+ .channels_max = 2,
+ .period_bytes_min = 32,
+ .period_bytes_max = 2 * PAGE_SIZE,
+ .periods_min = 2,
+ .periods_max = 128,
+ .buffer_bytes_max = 128 * 2 * PAGE_SIZE,
+ .fifo_size = 32,
+};
+
+static void jz4740_pcm_start_transfer(struct jz4740_runtime_data *prtd, int stream)
+{
+ unsigned int count;
+
+ if (prtd->dma_pos + prtd->dma_period > prtd->dma_end)
+ count = prtd->dma_end - prtd->dma_pos;
+ else
+ count = prtd->dma_period;
+
+ jz4740_dma_disable(prtd->dma);
+
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ jz4740_dma_set_src_addr(prtd->dma, prtd->dma_pos);
+ jz4740_dma_set_dst_addr(prtd->dma, prtd->fifo_addr);
+ } else {
+ jz4740_dma_set_src_addr(prtd->dma, prtd->fifo_addr);
+ jz4740_dma_set_dst_addr(prtd->dma, prtd->dma_pos);
+ }
+
+ jz4740_dma_set_transfer_count(prtd->dma, count);
+
+ jz4740_dma_enable(prtd->dma);
+
+ prtd->dma_pos += prtd->dma_period;
+ if (prtd->dma_pos >= prtd->dma_end)
+ prtd->dma_pos = prtd->dma_start;
+}
+
+static void jz4740_pcm_dma_transfer_done(struct jz4740_dma_chan *dma, int err,
+ void *dev_id)
+{
+ struct snd_pcm_substream *substream = dev_id;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct jz4740_runtime_data *prtd = runtime->private_data;
+
+ snd_pcm_period_elapsed(substream);
+
+ jz4740_pcm_start_transfer(prtd, substream->stream);
+}
+
+static int jz4740_pcm_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct jz4740_runtime_data *prtd = runtime->private_data;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct jz4740_pcm_config *config;
+
+ config = rtd->dai->cpu_dai->dma_data;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ prtd->dma = jz4740_dma_request(substream, "PCM Playback");
+ } else {
+ prtd->dma = jz4740_dma_request(substream, "PCM Capture");
+ }
+
+ if (!prtd->dma)
+ return -EBUSY;
+
+ jz4740_dma_configure(prtd->dma, config->dma_config);
+ prtd->fifo_addr = config->fifo_addr;
+
+ jz4740_dma_set_complete_cb(prtd->dma, jz4740_pcm_dma_transfer_done);
+
+ snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
+ runtime->dma_bytes = params_buffer_bytes(params);
+
+ prtd->dma_period = params_period_bytes(params);
+ prtd->dma_start = runtime->dma_addr;
+ prtd->dma_pos = prtd->dma_start;
+ prtd->dma_end = prtd->dma_start + runtime->dma_bytes;
+
+ return 0;
+}
+
+static int jz4740_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+ struct jz4740_runtime_data *prtd = substream->runtime->private_data;
+
+ snd_pcm_set_runtime_buffer(substream, NULL);
+ if (prtd->dma)
+ jz4740_dma_free(prtd->dma);
+
+ return 0;
+}
+
+static int jz4740_pcm_prepare(struct snd_pcm_substream *substream)
+{
+ struct jz4740_runtime_data *prtd = substream->runtime->private_data;
+ int ret = 0;
+
+ if (!prtd->dma)
+ return 0;
+
+ prtd->dma_pos = prtd->dma_start;
+
+ return ret;
+}
+
+static int jz4740_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct jz4740_runtime_data *prtd = runtime->private_data;
+
+ int ret = 0;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ jz4740_pcm_start_transfer(prtd, substream->stream);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ jz4740_dma_disable(prtd->dma);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static snd_pcm_uframes_t jz4740_pcm_pointer(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct jz4740_runtime_data *prtd = runtime->private_data;
+ unsigned long count, pos;
+ snd_pcm_uframes_t offset;
+ struct jz4740_dma_chan *dma = prtd->dma;
+
+ count = jz4740_dma_get_residue(dma);
+ if (prtd->dma_pos == prtd->dma_start)
+ pos = prtd->dma_end - prtd->dma_start - count;
+ else
+ pos = prtd->dma_pos - prtd->dma_start - count;
+
+ offset = bytes_to_frames(runtime, pos);
+ if (offset >= runtime->buffer_size)
+ offset = 0;
+
+ return offset;
+}
+
+static int jz4740_pcm_open(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct jz4740_runtime_data *prtd;
+
+ snd_soc_set_runtime_hwparams(substream, &jz4740_pcm_hardware);
+ prtd = kzalloc(sizeof(struct jz4740_runtime_data), GFP_KERNEL);
+
+ if (prtd == NULL)
+ return -ENOMEM;
+
+ runtime->private_data = prtd;
+ return 0;
+}
+
+static int jz4740_pcm_close(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct jz4740_runtime_data *prtd = runtime->private_data;
+
+ kfree(prtd);
+
+ return 0;
+}
+
+static int jz4740_pcm_mmap(struct snd_pcm_substream *substream,
+ struct vm_area_struct *vma)
+{
+ return remap_pfn_range(vma, vma->vm_start,
+ substream->dma_buffer.addr >> PAGE_SHIFT,
+ vma->vm_end - vma->vm_start, vma->vm_page_prot);
+}
+
+static struct snd_pcm_ops jz4740_pcm_ops = {
+ .open = jz4740_pcm_open,
+ .close = jz4740_pcm_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = jz4740_pcm_hw_params,
+ .hw_free = jz4740_pcm_hw_free,
+ .prepare = jz4740_pcm_prepare,
+ .trigger = jz4740_pcm_trigger,
+ .pointer = jz4740_pcm_pointer,
+ .mmap = jz4740_pcm_mmap,
+};
+
+static int jz4740_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 = jz4740_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_noncoherent(pcm->card->dev, size,
+ &buf->addr, GFP_KERNEL);
+ if (!buf->area)
+ return -ENOMEM;
+
+ buf->bytes = size;
+
+ return 0;
+}
+
+static void jz4740_pcm_free(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_noncoherent(pcm->card->dev, buf->bytes,
+ buf->area, buf->addr);
+ buf->area = NULL;
+ }
+}
+
+static u64 jz4740_pcm_dmamask = DMA_BIT_MASK(32);
+
+int jz4740_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
+ struct snd_pcm *pcm)
+{
+ int ret = 0;
+
+ if (!card->dev->dma_mask)
+ card->dev->dma_mask = &jz4740_pcm_dmamask;
+
+ if (!card->dev->coherent_dma_mask)
+ card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+
+ if (dai->playback.channels_min) {
+ ret = jz4740_pcm_preallocate_dma_buffer(pcm,
+ SNDRV_PCM_STREAM_PLAYBACK);
+ if (ret)
+ goto err;
+ }
+
+ if (dai->capture.channels_min) {
+ ret = jz4740_pcm_preallocate_dma_buffer(pcm,
+ SNDRV_PCM_STREAM_CAPTURE);
+ if (ret)
+ goto err;
+ }
+
+err:
+ return ret;
+}
+
+struct snd_soc_platform jz4740_soc_platform = {
+ .name = "jz4740-pcm",
+ .pcm_ops = &jz4740_pcm_ops,
+ .pcm_new = jz4740_pcm_new,
+ .pcm_free = jz4740_pcm_free,
+};
+EXPORT_SYMBOL_GPL(jz4740_soc_platform);
+
+static int __init jz4740_soc_platform_init(void)
+{
+ return snd_soc_register_platform(&jz4740_soc_platform);
+}
+module_init(jz4740_soc_platform_init);
+
+static void __exit jz4740_soc_platform_exit(void)
+{
+ snd_soc_unregister_platform(&jz4740_soc_platform);
+}
+module_exit(jz4740_soc_platform_exit);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("Ingenic SoC JZ4740 PCM driver");
+MODULE_LICENSE("GPL");
diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.h b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.h
new file mode 100644
index 0000000000..2a1180081a
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/jz4740-pcm.h
@@ -0,0 +1,22 @@
+/*
+ *
+ * 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 _JZ4740_PCM_H
+#define _JZ4740_PCM_H
+
+#include <linux/dma-mapping.h>
+#include <asm/mach-jz4740/dma.h>
+
+/* platform data */
+extern struct snd_soc_platform jz4740_soc_platform;
+
+struct jz4740_pcm_config {
+ struct jz4740_dma_config *dma_config;
+ phys_addr_t fifo_addr;
+};
+
+#endif
diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/n526.c b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/n526.c
new file mode 100644
index 0000000000..2283904e36
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/n526.c
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * 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.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <linux/gpio.h>
+
+#include "../codecs/jzcodec.h"
+#include "jz4740-pcm.h"
+#include "jz4740-i2s.h"
+
+#define N526_AMP_EN_GPIO JZ_GPIO_PORTD(4)
+
+static int n526_spk_event(struct snd_soc_dapm_widget *widget,
+ struct snd_kcontrol *ctrl, int event)
+{
+ gpio_set_value(N526_AMP_EN_GPIO, !SND_SOC_DAPM_EVENT_OFF(event));
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget n526_widgets[] = {
+ SND_SOC_DAPM_SPK("Speaker", n526_spk_event),
+ SND_SOC_DAPM_HP("Headphone", NULL),
+ SND_SOC_DAPM_MIC("Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route n526_routes[] = {
+ {"Mic", NULL, "MIC"},
+ {"Speaker", NULL, "LOUT"},
+ {"Speaker", NULL, "ROUT"},
+ {"Headphone", NULL, "LOUT"},
+ {"Headphone", NULL, "ROUT"},
+};
+
+static const struct snd_kcontrol_new n526_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Speaker"),
+};
+
+#define N526_DAIFMT (SND_SOC_DAIFMT_I2S | \
+ SND_SOC_DAIFMT_NB_NF | \
+ SND_SOC_DAIFMT_CBM_CFM)
+
+static int n526_codec_init(struct snd_soc_codec *codec)
+{
+ int ret;
+ struct snd_soc_dai *cpu_dai = codec->socdev->card->dai_link->cpu_dai;
+ struct snd_soc_dai *codec_dai = codec->socdev->card->dai_link->codec_dai;
+
+ snd_soc_dapm_nc_pin(codec, "LIN");
+ snd_soc_dapm_nc_pin(codec, "RIN");
+
+ ret = snd_soc_dai_set_fmt(codec_dai, N526_DAIFMT);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to set codec dai format: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_fmt(cpu_dai, N526_DAIFMT);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, JZCODEC_SYSCLK, 111,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to set codec dai sysclk: %d\n", ret);
+ return ret;
+ }
+
+ snd_soc_dapm_new_controls(codec, n526_widgets, ARRAY_SIZE(n526_widgets));
+
+ snd_soc_add_controls(codec, n526_controls,
+ ARRAY_SIZE(n526_controls));
+
+ snd_soc_dapm_add_routes(codec, n526_routes, ARRAY_SIZE(n526_routes));
+
+ snd_soc_dapm_sync(codec);
+
+ return 0;
+}
+
+static struct snd_soc_dai_link n526_dai = {
+ .name = "jz-codec",
+ .stream_name = "JZCODEC",
+ .cpu_dai = &jz4740_i2s_dai,
+ .codec_dai = &jz_codec_dai,
+ .init = n526_codec_init,
+};
+
+static struct snd_soc_card n526 = {
+ .name = "N526",
+ .dai_link = &n526_dai,
+ .num_links = 1,
+ .platform = &jz4740_soc_platform,
+};
+
+static struct snd_soc_device n526_snd_devdata = {
+ .card = &n526,
+ .codec_dev = &soc_codec_dev_jzcodec,
+};
+
+static struct platform_device *n526_snd_device;
+
+static int __init n526_init(void)
+{
+ int ret;
+
+ n526_snd_device = platform_device_alloc("soc-audio", -1);
+
+ if (!n526_snd_device)
+ return -ENOMEM;
+
+ ret = gpio_request(N526_AMP_EN_GPIO, "AMP");
+ if (ret) {
+ pr_err("n526 snd: Failed to request AMP GPIO(%d): %d\n",
+ N526_AMP_EN_GPIO, ret);
+ goto err_device_put;
+ }
+
+ gpio_direction_output(JZ_GPIO_PORTD(4), 0);
+
+ platform_set_drvdata(n526_snd_device, &n526_snd_devdata);
+ n526_snd_devdata.dev = &n526_snd_device->dev;
+ ret = platform_device_add(n526_snd_device);
+ if (ret) {
+ pr_err("n526 snd: Failed to add snd soc device: %d\n", ret);
+ goto err_unset_pdata;
+ }
+
+ return 0;
+
+err_unset_pdata:
+ platform_set_drvdata(n526_snd_device, NULL);
+ gpio_free(N526_AMP_EN_GPIO);
+err_device_put:
+ platform_device_put(n526_snd_device);
+
+ return ret;
+}
+module_init(n526_init);
+
+static void __exit n526_exit(void)
+{
+ gpio_free(N526_AMP_EN_GPIO);
+ platform_device_unregister(n526_snd_device);
+}
+module_exit(n526_exit);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("ALSA SoC N526 audio support");
+MODULE_LICENSE("GPL v2");
diff --git a/target/linux/xburst/files-2.6.32/sound/soc/jz4740/qi_lb60.c b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/qi_lb60.c
new file mode 100644
index 0000000000..a2ce3cf7ea
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/sound/soc/jz4740/qi_lb60.c
@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
+ *
+ * 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.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <linux/gpio.h>
+
+#include "../codecs/jzcodec.h"
+#include "jz4740-pcm.h"
+#include "jz4740-i2s.h"
+
+
+#define QI_LB60_SND_GPIO JZ_GPIO_PORTB(29)
+#define QI_LB60_AMP_GPIO JZ_GPIO_PORTD(4)
+
+static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget,
+ struct snd_kcontrol *ctrl, int event)
+{
+ int on = 0;
+ if (event & SND_SOC_DAPM_POST_PMU)
+ on = 1;
+ else if (event & SND_SOC_DAPM_PRE_PMD)
+ on = 0;
+
+ gpio_set_value(QI_LB60_SND_GPIO, on);
+ gpio_set_value(QI_LB60_AMP_GPIO, on);
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget qi_lb60_widgets[] = {
+ SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event),
+ SND_SOC_DAPM_MIC("Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route qi_lb60_routes[] = {
+ {"Mic", NULL, "MIC"},
+ {"Speaker", NULL, "LOUT"},
+ {"Speaker", NULL, "ROUT"},
+};
+
+#define QI_LB60_DAIFMT (SND_SOC_DAIFMT_I2S | \
+ SND_SOC_DAIFMT_NB_NF | \
+ SND_SOC_DAIFMT_CBM_CFM)
+
+static int qi_lb60_codec_init(struct snd_soc_codec *codec)
+{
+ int ret;
+ struct snd_soc_dai *cpu_dai = codec->socdev->card->dai_link->cpu_dai;
+ struct snd_soc_dai *codec_dai = codec->socdev->card->dai_link->codec_dai;
+
+ snd_soc_dapm_nc_pin(codec, "LIN");
+ snd_soc_dapm_nc_pin(codec, "RIN");
+
+ ret = snd_soc_dai_set_fmt(codec_dai, QI_LB60_DAIFMT);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to set codec dai format: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_fmt(cpu_dai, QI_LB60_DAIFMT);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, JZCODEC_SYSCLK, 111,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to set codec dai sysclk: %d\n", ret);
+ return ret;
+ }
+
+ snd_soc_dapm_new_controls(codec, qi_lb60_widgets, ARRAY_SIZE(qi_lb60_widgets));
+
+ snd_soc_dapm_add_routes(codec, qi_lb60_routes, ARRAY_SIZE(qi_lb60_routes));
+
+ snd_soc_dapm_sync(codec);
+
+ return 0;
+}
+
+static struct snd_soc_dai_link qi_lb60_dai = {
+ .name = "jz-codec",
+ .stream_name = "JZCODEC",
+ .cpu_dai = &jz4740_i2s_dai,
+ .codec_dai = &jz_codec_dai,
+ .init = qi_lb60_codec_init,
+};
+
+static struct snd_soc_card qi_lb60 = {
+ .name = "QI LB60",
+ .dai_link = &qi_lb60_dai,
+ .num_links = 1,
+ .platform = &jz4740_soc_platform,
+};
+
+static struct snd_soc_device qi_lb60_snd_devdata = {
+ .card = &qi_lb60,
+ .codec_dev = &soc_codec_dev_jzcodec,
+};
+
+static struct platform_device *qi_lb60_snd_device;
+
+static int __init qi_lb60_init(void)
+{
+ int ret;
+
+ qi_lb60_snd_device = platform_device_alloc("soc-audio", -1);
+
+ if (!qi_lb60_snd_device)
+ return -ENOMEM;
+
+
+ ret = gpio_request(QI_LB60_SND_GPIO, "SND");
+ if (ret) {
+ pr_err("qi_lb60 snd: Failed to request SND GPIO(%d): %d\n",
+ QI_LB60_SND_GPIO, ret);
+ goto err_device_put;
+ }
+
+ ret = gpio_request(QI_LB60_AMP_GPIO, "AMP");
+ if (ret) {
+ pr_err("qi_lb60 snd: Failed to request AMP GPIO(%d): %d\n",
+ QI_LB60_AMP_GPIO, ret);
+ goto err_gpio_free_snd;
+ }
+
+ gpio_direction_output(JZ_GPIO_PORTB(29), 0);
+ gpio_direction_output(JZ_GPIO_PORTD(4), 0);
+
+ platform_set_drvdata(qi_lb60_snd_device, &qi_lb60_snd_devdata);
+ qi_lb60_snd_devdata.dev = &qi_lb60_snd_device->dev;
+ ret = platform_device_add(qi_lb60_snd_device);
+ if (ret) {
+ pr_err("qi_lb60 snd: Failed to add snd soc device: %d\n", ret);
+ goto err_unset_pdata;
+ }
+
+ return 0;
+
+err_unset_pdata:
+ platform_set_drvdata(qi_lb60_snd_device, NULL);
+/*err_gpio_free_amp:*/
+ gpio_free(QI_LB60_AMP_GPIO);
+err_gpio_free_snd:
+ gpio_free(QI_LB60_SND_GPIO);
+err_device_put:
+ platform_device_put(qi_lb60_snd_device);
+
+ return ret;
+}
+module_init(qi_lb60_init);
+
+static void __exit qi_lb60_exit(void)
+{
+ gpio_free(QI_LB60_AMP_GPIO);
+ gpio_free(QI_LB60_SND_GPIO);
+ platform_device_unregister(qi_lb60_snd_device);
+}
+module_exit(qi_lb60_exit);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support");
+MODULE_LICENSE("GPL v2");