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Diffstat (limited to 'target/linux/xburst/patches-3.10/016-ASoC-jz4740-Use-the-generic-dmaengine-PCM-driver.patch')
-rw-r--r--target/linux/xburst/patches-3.10/016-ASoC-jz4740-Use-the-generic-dmaengine-PCM-driver.patch507
1 files changed, 0 insertions, 507 deletions
diff --git a/target/linux/xburst/patches-3.10/016-ASoC-jz4740-Use-the-generic-dmaengine-PCM-driver.patch b/target/linux/xburst/patches-3.10/016-ASoC-jz4740-Use-the-generic-dmaengine-PCM-driver.patch
deleted file mode 100644
index 1fb3731..0000000
--- a/target/linux/xburst/patches-3.10/016-ASoC-jz4740-Use-the-generic-dmaengine-PCM-driver.patch
+++ /dev/null
@@ -1,507 +0,0 @@
-From a20f54fdd500e5bccc9bd1ca4ac9f150addf2e64 Mon Sep 17 00:00:00 2001
-From: Lars-Peter Clausen <lars@metafoo.de>
-Date: Sat, 27 Apr 2013 21:26:30 +0200
-Subject: [PATCH 16/16] ASoC: jz4740: Use the generic dmaengine PCM driver
-
-Since there is a dmaengine driver for the jz4740 DMA controller now we can use
-the generic dmaengine PCM driver instead of a custom one.
-
-Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
-Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
----
- sound/soc/jz4740/Kconfig | 1 +
- sound/soc/jz4740/jz4740-i2s.c | 48 +++----
- sound/soc/jz4740/jz4740-pcm.c | 310 ++---------------------------------------
- sound/soc/jz4740/jz4740-pcm.h | 20 ---
- 4 files changed, 27 insertions(+), 352 deletions(-)
- delete mode 100644 sound/soc/jz4740/jz4740-pcm.h
-
---- a/sound/soc/jz4740/Kconfig
-+++ b/sound/soc/jz4740/Kconfig
-@@ -1,6 +1,7 @@
- config SND_JZ4740_SOC
- tristate "SoC Audio for Ingenic JZ4740 SoC"
- depends on MACH_JZ4740 && SND_SOC
-+ select SND_SOC_GENERIC_DMAENGINE_PCM
- 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
---- a/sound/soc/jz4740/jz4740-i2s.c
-+++ b/sound/soc/jz4740/jz4740-i2s.c
-@@ -29,9 +29,12 @@
- #include <sound/pcm_params.h>
- #include <sound/soc.h>
- #include <sound/initval.h>
-+#include <sound/dmaengine_pcm.h>
-+
-+#include <asm/mach-jz4740/dma.h>
-
- #include "jz4740-i2s.h"
--#include "jz4740-pcm.h"
-+
-
- #define JZ_REG_AIC_CONF 0x00
- #define JZ_REG_AIC_CTRL 0x04
-@@ -89,8 +92,8 @@ struct jz4740_i2s {
- struct clk *clk_aic;
- struct clk *clk_i2s;
-
-- struct jz4740_pcm_config pcm_config_playback;
-- struct jz4740_pcm_config pcm_config_capture;
-+ struct snd_dmaengine_dai_dma_data playback_dma_data;
-+ struct snd_dmaengine_dai_dma_data capture_dma_data;
- };
-
- static inline uint32_t jz4740_i2s_read(const struct jz4740_i2s *i2s,
-@@ -233,8 +236,6 @@ static int jz4740_i2s_hw_params(struct s
- struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
- {
- struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
-- enum jz4740_dma_width dma_width;
-- struct jz4740_pcm_config *pcm_config;
- unsigned int sample_size;
- uint32_t ctrl;
-
-@@ -243,11 +244,9 @@ static int jz4740_i2s_hw_params(struct s
- 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;
-@@ -260,22 +259,13 @@ static int jz4740_i2s_hw_params(struct s
- 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;
- }
-
-@@ -342,25 +332,19 @@ static int jz4740_i2s_resume(struct snd_
-
- static void jz4740_i2c_init_pcm_config(struct jz4740_i2s *i2s)
- {
-- struct jz4740_dma_config *dma_config;
-+ struct snd_dmaengine_dai_dma_data *dma_data;
-
- /* 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;
-+ dma_data = &i2s->playback_dma_data;
-+ dma_data->maxburst = 16;
-+ dma_data->slave_id = JZ4740_DMA_TYPE_AIC_TRANSMIT;
-+ dma_data->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;
-+ dma_data = &i2s->capture_dma_data;
-+ dma_data->maxburst = 16;
-+ dma_data->slave_id = JZ4740_DMA_TYPE_AIC_RECEIVE;
-+ dma_data->addr = i2s->phys_base + JZ_REG_AIC_FIFO;
- }
-
- static int jz4740_i2s_dai_probe(struct snd_soc_dai *dai)
-@@ -371,6 +355,8 @@ static int jz4740_i2s_dai_probe(struct s
- clk_enable(i2s->clk_aic);
-
- jz4740_i2c_init_pcm_config(i2s);
-+ dai->playback_dma_data = &i2s->playback_dma_data;
-+ dai->capture_dma_data = &i2s->capture_dma_data;
-
- conf = (7 << JZ_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET) |
- (8 << JZ_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET) |
---- a/sound/soc/jz4740/jz4740-pcm.c
-+++ b/sound/soc/jz4740/jz4740-pcm.c
-@@ -19,38 +19,14 @@
- #include <linux/platform_device.h>
- #include <linux/slab.h>
-
--#include <linux/dma-mapping.h>
-+#include <sound/dmaengine_pcm.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,
-@@ -59,290 +35,22 @@ static const struct snd_pcm_hardware jz4
- .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->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);
--
--static int jz4740_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 = &jz4740_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 = jz4740_pcm_preallocate_dma_buffer(pcm,
-- SNDRV_PCM_STREAM_PLAYBACK);
-- if (ret)
-- goto err;
-- }
--
-- if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
-- ret = jz4740_pcm_preallocate_dma_buffer(pcm,
-- SNDRV_PCM_STREAM_CAPTURE);
-- if (ret)
-- goto err;
-- }
--
--err:
-- return ret;
--}
--
--static struct snd_soc_platform_driver jz4740_soc_platform = {
-- .ops = &jz4740_pcm_ops,
-- .pcm_new = jz4740_pcm_new,
-- .pcm_free = jz4740_pcm_free,
-+static const struct snd_dmaengine_pcm_config jz4740_dmaengine_pcm_config = {
-+ .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config,
-+ .pcm_hardware = &jz4740_pcm_hardware,
-+ .prealloc_buffer_size = 256 * PAGE_SIZE,
- };
-
- static int jz4740_pcm_probe(struct platform_device *pdev)
- {
-- return snd_soc_register_platform(&pdev->dev, &jz4740_soc_platform);
-+ return snd_dmaengine_pcm_register(&pdev->dev,
-+ &jz4740_dmaengine_pcm_config,
-+ SND_DMAENGINE_PCM_FLAG_COMPAT);
- }
-
- static int jz4740_pcm_remove(struct platform_device *pdev)
- {
-- snd_soc_unregister_platform(&pdev->dev);
-+ snd_dmaengine_pcm_unregister(&pdev->dev);
- return 0;
- }
-
---- a/sound/soc/jz4740/jz4740-pcm.h
-+++ /dev/null
-@@ -1,20 +0,0 @@
--/*
-- *
-- * 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>
--
--
--struct jz4740_pcm_config {
-- struct jz4740_dma_config dma_config;
-- phys_addr_t fifo_addr;
--};
--
--#endif
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