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-rw-r--r--target/linux/xburst/patches-2.6.35/061-asoc.patch1038
1 files changed, 0 insertions, 1038 deletions
diff --git a/target/linux/xburst/patches-2.6.35/061-asoc.patch b/target/linux/xburst/patches-2.6.35/061-asoc.patch
deleted file mode 100644
index 9144299374..0000000000
--- a/target/linux/xburst/patches-2.6.35/061-asoc.patch
+++ /dev/null
@@ -1,1038 +0,0 @@
-From def17bc36684a36ca60211759c84bcc43f4f385a Mon Sep 17 00:00:00 2001
-From: Lars-Peter Clausen <lars@metafoo.de>
-Date: Sat, 19 Jun 2010 16:50:37 +0200
-Subject: [PATCH] ASoC: Add JZ4740 ASoC support
-
-This patch adds ASoC support for JZ4740 SoCs I2S module.
-
-Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
-Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
-Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
----
- sound/soc/Kconfig | 1 +
- sound/soc/Makefile | 1 +
- sound/soc/jz4740/Kconfig | 14 +
- sound/soc/jz4740/Makefile | 9 +
- sound/soc/jz4740/jz4740-i2s.c | 540 +++++++++++++++++++++++++++++++++++++++++
- sound/soc/jz4740/jz4740-i2s.h | 18 ++
- sound/soc/jz4740/jz4740-pcm.c | 373 ++++++++++++++++++++++++++++
- sound/soc/jz4740/jz4740-pcm.h | 22 ++
- 8 files changed, 978 insertions(+), 0 deletions(-)
- create mode 100644 sound/soc/jz4740/Kconfig
- create mode 100644 sound/soc/jz4740/Makefile
- create mode 100644 sound/soc/jz4740/jz4740-i2s.c
- create mode 100644 sound/soc/jz4740/jz4740-i2s.h
- create mode 100644 sound/soc/jz4740/jz4740-pcm.c
- create mode 100644 sound/soc/jz4740/jz4740-pcm.h
-
---- a/sound/soc/Kconfig
-+++ b/sound/soc/Kconfig
-@@ -36,6 +36,7 @@ source "sound/soc/s3c24xx/Kconfig"
- source "sound/soc/s6000/Kconfig"
- source "sound/soc/sh/Kconfig"
- source "sound/soc/txx9/Kconfig"
-+source "sound/soc/jz4740/Kconfig"
-
- # Supported codecs
- source "sound/soc/codecs/Kconfig"
---- a/sound/soc/Makefile
-+++ b/sound/soc/Makefile
-@@ -14,3 +14,4 @@ obj-$(CONFIG_SND_SOC) += s3c24xx/
- obj-$(CONFIG_SND_SOC) += s6000/
- obj-$(CONFIG_SND_SOC) += sh/
- obj-$(CONFIG_SND_SOC) += txx9/
-+obj-$(CONFIG_SND_SOC) += jz4740/
---- /dev/null
-+++ b/sound/soc/jz4740/Kconfig
-@@ -0,0 +1,14 @@
-+config SND_JZ4740_SOC
-+ tristate "SoC Audio for Ingenic JZ4740 SoC"
-+ depends on MACH_JZ4740 && SND_SOC
-+ help
-+ Say Y or M if you want to add support for codecs attached to
-+ the JZ4740 I2S interface. You will also need to select the audio
-+ interfaces to support below.
-+
-+config SND_JZ4740_SOC_I2S
-+ depends on SND_JZ4740_SOC
-+ tristate "SoC Audio (I2S protocol) for Ingenic JZ4740 SoC"
-+ help
-+ Say Y if you want to use I2S protocol and I2S codec on Ingenic JZ4740
-+ based boards.
---- /dev/null
-+++ b/sound/soc/jz4740/Makefile
-@@ -0,0 +1,9 @@
-+#
-+# Jz4740 Platform Support
-+#
-+snd-soc-jz4740-objs := jz4740-pcm.o
-+snd-soc-jz4740-i2s-objs := jz4740-i2s.o
-+
-+obj-$(CONFIG_SND_JZ4740_SOC) += snd-soc-jz4740.o
-+obj-$(CONFIG_SND_JZ4740_SOC_I2S) += snd-soc-jz4740-i2s.o
-+
---- /dev/null
-+++ b/sound/soc/jz4740/jz4740-i2s.c
-@@ -0,0 +1,540 @@
-+/*
-+ * 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/init.h>
-+#include <linux/io.h>
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/platform_device.h>
-+#include <linux/slab.h>
-+
-+#include <linux/clk.h>
-+#include <linux/delay.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/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_aic;
-+ struct clk *clk_i2s;
-+
-+ struct jz4740_pcm_config pcm_config_playback;
-+ struct jz4740_pcm_config pcm_config_capture;
-+};
-+
-+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;
-+
-+ ctrl = jz4740_i2s_read(i2s, JZ_REG_AIC_CTRL);
-+ ctrl |= JZ_AIC_CTRL_FLUSH;
-+ jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl);
-+
-+ clk_enable(i2s->clk_i2s);
-+
-+ 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 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_i2s);
-+}
-+
-+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);
-+
-+ uint32_t ctrl;
-+ uint32_t mask;
-+
-+ if (substream->stream == SNDRV_PCM_STREAM_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);
-+ enum jz4740_dma_width dma_width;
-+ struct jz4740_pcm_config *pcm_config;
-+ unsigned int sample_size;
-+ 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 (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-+ ctrl &= ~JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_MASK;
-+ ctrl |= sample_size << JZ_AIC_CTRL_OUTPUT_SAMPLE_SIZE_OFFSET;
-+ if (params_channels(params) == 1)
-+ ctrl |= JZ_AIC_CTRL_MONO_TO_STEREO;
-+ else
-+ ctrl &= ~JZ_AIC_CTRL_MONO_TO_STEREO;
-+
-+ pcm_config = &i2s->pcm_config_playback;
-+ pcm_config->dma_config.dst_width = dma_width;
-+
-+ } else {
-+ ctrl &= ~JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_MASK;
-+ ctrl |= sample_size << JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_OFFSET;
-+
-+ pcm_config = &i2s->pcm_config_capture;
-+ pcm_config->dma_config.src_width = dma_width;
-+ }
-+
-+ jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl);
-+
-+ snd_soc_dai_set_dma_data(dai, substream, pcm_config);
-+
-+ 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);
-+ struct clk *parent;
-+ int ret = 0;
-+
-+ switch (clk_id) {
-+ case JZ4740_I2S_CLKSRC_EXT:
-+ parent = clk_get(NULL, "ext");
-+ clk_set_parent(i2s->clk_i2s, parent);
-+ break;
-+ case JZ4740_I2S_CLKSRC_PLL:
-+ parent = clk_get(NULL, "pll half");
-+ clk_set_parent(i2s->clk_i2s, parent);
-+ ret = clk_set_rate(i2s->clk_i2s, 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) {
-+ 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_i2s);
-+ }
-+
-+ clk_disable(i2s->clk_aic);
-+
-+ return 0;
-+}
-+
-+static int jz4740_i2s_resume(struct snd_soc_dai *dai)
-+{
-+ struct jz4740_i2s *i2s = jz4740_dai_to_i2s(dai);
-+ uint32_t conf;
-+
-+ clk_enable(i2s->clk_aic);
-+
-+ if (dai->active) {
-+ clk_enable(i2s->clk_i2s);
-+
-+ 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_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_48000,
-+ .formats = JZ4740_I2S_FMTS,
-+ },
-+ .capture = {
-+ .channels_min = 2,
-+ .channels_max = 2,
-+ .rates = SNDRV_PCM_RATE_8000_48000,
-+ .formats = JZ4740_I2S_FMTS,
-+ },
-+ .symmetric_rates = 1,
-+ .ops = &jz4740_i2s_dai_ops,
-+ .suspend = jz4740_i2s_suspend,
-+ .resume = jz4740_i2s_resume,
-+};
-+EXPORT_SYMBOL_GPL(jz4740_i2s_dai);
-+
-+static void __devinit jz4740_i2c_init_pcm_config(struct jz4740_i2s *i2s)
-+{
-+ struct jz4740_dma_config *dma_config;
-+
-+ /* Playback */
-+ dma_config = &i2s->pcm_config_playback.dma_config;
-+ dma_config->src_width = JZ4740_DMA_WIDTH_32BIT,
-+ dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE;
-+ dma_config->request_type = JZ4740_DMA_TYPE_AIC_TRANSMIT;
-+ dma_config->flags = JZ4740_DMA_SRC_AUTOINC;
-+ dma_config->mode = JZ4740_DMA_MODE_SINGLE;
-+ i2s->pcm_config_playback.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO;
-+
-+ /* Capture */
-+ dma_config = &i2s->pcm_config_capture.dma_config;
-+ dma_config->dst_width = JZ4740_DMA_WIDTH_32BIT,
-+ dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE;
-+ dma_config->request_type = JZ4740_DMA_TYPE_AIC_RECEIVE;
-+ dma_config->flags = JZ4740_DMA_DST_AUTOINC;
-+ dma_config->mode = JZ4740_DMA_MODE_SINGLE;
-+ i2s->pcm_config_capture.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO;
-+}
-+
-+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;
-+
-+ i2s->clk_aic = clk_get(&pdev->dev, "aic");
-+ if (IS_ERR(i2s->clk_aic)) {
-+ ret = PTR_ERR(i2s->clk_aic);
-+ goto err_iounmap;
-+ }
-+
-+ i2s->clk_i2s = clk_get(&pdev->dev, "i2s");
-+ if (IS_ERR(i2s->clk_i2s)) {
-+ ret = PTR_ERR(i2s->clk_i2s);
-+ goto err_clk_put_aic;
-+ }
-+
-+ clk_enable(i2s->clk_aic);
-+
-+ jz4740_i2c_init_pcm_config(i2s);
-+
-+ jz4740_i2s_dai.private_data = i2s;
-+ ret = snd_soc_register_dai(&jz4740_i2s_dai);
-+
-+ if (ret) {
-+ dev_err(&pdev->dev, "Failed to register DAI\n");
-+ goto err_clk_put_i2s;
-+ }
-+
-+ platform_set_drvdata(pdev, i2s);
-+
-+ return 0;
-+
-+err_clk_put_i2s:
-+ clk_disable(i2s->clk_aic);
-+ clk_put(i2s->clk_i2s);
-+err_clk_put_aic:
-+ clk_put(i2s->clk_aic);
-+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_disable(i2s->clk_aic);
-+ clk_put(i2s->clk_i2s);
-+ clk_put(i2s->clk_aic);
-+
-+ 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");
---- /dev/null
-+++ b/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
---- /dev/null
-+++ b/sound/soc/jz4740/jz4740-pcm.c
-@@ -0,0 +1,373 @@
-+/*
-+ * 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/init.h>
-+#include <linux/interrupt.h>
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/platform_device.h>
-+#include <linux/slab.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 long 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 = 16,
-+ .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,
-+ struct snd_pcm_substream *substream)
-+{
-+ unsigned long count;
-+
-+ if (prtd->dma_pos == prtd->dma_end)
-+ prtd->dma_pos = prtd->dma_start;
-+
-+ 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 (substream->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);
-+
-+ prtd->dma_pos += count;
-+
-+ jz4740_dma_enable(prtd->dma);
-+}
-+
-+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);
-+}
-+
-+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 = snd_soc_dai_get_dma_data(rtd->dai->cpu_dai, substream);
-+
-+ if (!config)
-+ return 0;
-+
-+ if (!prtd->dma) {
-+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
-+ prtd->dma = jz4740_dma_request(substream, "PCM Capture");
-+ else
-+ prtd->dma = jz4740_dma_request(substream, "PCM Playback");
-+ }
-+
-+ 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);
-+ prtd->dma = NULL;
-+ }
-+
-+ return 0;
-+}
-+
-+static int jz4740_pcm_prepare(struct snd_pcm_substream *substream)
-+{
-+ struct jz4740_runtime_data *prtd = substream->runtime->private_data;
-+
-+ if (!prtd->dma)
-+ return -EBUSY;
-+
-+ prtd->dma_pos = prtd->dma_start;
-+
-+ return 0;
-+}
-+
-+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;
-+
-+ switch (cmd) {
-+ case SNDRV_PCM_TRIGGER_START:
-+ case SNDRV_PCM_TRIGGER_RESUME:
-+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-+ jz4740_pcm_start_transfer(prtd, substream);
-+ break;
-+ case SNDRV_PCM_TRIGGER_STOP:
-+ case SNDRV_PCM_TRIGGER_SUSPEND:
-+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-+ jz4740_dma_disable(prtd->dma);
-+ break;
-+ default:
-+ break;
-+ }
-+
-+ return 0;
-+}
-+
-+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 byte_offset;
-+ snd_pcm_uframes_t offset;
-+ struct jz4740_dma_chan *dma = prtd->dma;
-+
-+ /* prtd->dma_pos points to the end of the current transfer. So by
-+ * subtracting prdt->dma_start we get the offset to the end of the
-+ * current period in bytes. By subtracting the residue of the transfer
-+ * we get the current offset in bytes. */
-+ byte_offset = prtd->dma_pos - prtd->dma_start;
-+ byte_offset -= jz4740_dma_get_residue(dma);
-+
-+ offset = bytes_to_frames(runtime, byte_offset);
-+ 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;
-+
-+ prtd = kzalloc(sizeof(*prtd), GFP_KERNEL);
-+ if (prtd == NULL)
-+ return -ENOMEM;
-+
-+ snd_soc_set_runtime_hwparams(substream, &jz4740_pcm_hardware);
-+
-+ 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 < SNDRV_PCM_STREAM_LAST; ++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 __devinit jz4740_pcm_probe(struct platform_device *pdev)
-+{
-+ return snd_soc_register_platform(&jz4740_soc_platform);
-+}
-+
-+static int __devexit jz4740_pcm_remove(struct platform_device *pdev)
-+{
-+ snd_soc_unregister_platform(&jz4740_soc_platform);
-+ return 0;
-+}
-+
-+static struct platform_driver jz4740_pcm_driver = {
-+ .probe = jz4740_pcm_probe,
-+ .remove = __devexit_p(jz4740_pcm_remove),
-+ .driver = {
-+ .name = "jz4740-pcm",
-+ .owner = THIS_MODULE,
-+ },
-+};
-+
-+static int __init jz4740_soc_platform_init(void)
-+{
-+ return platform_driver_register(&jz4740_pcm_driver);
-+}
-+module_init(jz4740_soc_platform_init);
-+
-+static void __exit jz4740_soc_platform_exit(void)
-+{
-+ return platform_driver_unregister(&jz4740_pcm_driver);
-+}
-+module_exit(jz4740_soc_platform_exit);
-+
-+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
-+MODULE_DESCRIPTION("Ingenic SoC JZ4740 PCM driver");
-+MODULE_LICENSE("GPL");
---- /dev/null
-+++ b/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
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 10:23:07 +0000