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Diffstat (limited to 'sound/soc/txx9/txx9aclc.c')
-rw-r--r--sound/soc/txx9/txx9aclc.c141
1 files changed, 80 insertions, 61 deletions
diff --git a/sound/soc/txx9/txx9aclc.c b/sound/soc/txx9/txx9aclc.c
index 0e3452303ea6..f4aa4e03c888 100644
--- a/sound/soc/txx9/txx9aclc.c
+++ b/sound/soc/txx9/txx9aclc.c
@@ -22,6 +22,16 @@
#include <sound/soc.h>
#include "txx9aclc.h"
+static struct txx9aclc_soc_device {
+ struct txx9aclc_dmadata dmadata[2];
+} txx9aclc_soc_device;
+
+/* REVISIT: How to find txx9aclc_drvdata from snd_ac97? */
+static struct txx9aclc_plat_drvdata *txx9aclc_drvdata;
+
+static int txx9aclc_dma_init(struct txx9aclc_soc_device *dev,
+ struct txx9aclc_dmadata *dmadata);
+
static const struct snd_pcm_hardware txx9aclc_pcm_hardware = {
/*
* REVISIT: SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID
@@ -46,7 +56,6 @@ static int txx9aclc_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
- struct snd_soc_device *socdev = rtd->socdev;
struct snd_pcm_runtime *runtime = substream->runtime;
struct txx9aclc_dmadata *dmadata = runtime->private_data;
int ret;
@@ -55,13 +64,13 @@ static int txx9aclc_pcm_hw_params(struct snd_pcm_substream *substream,
if (ret < 0)
return ret;
- dev_dbg(socdev->dev,
+ dev_dbg(rtd->platform->dev,
"runtime->dma_area = %#lx dma_addr = %#lx dma_bytes = %zd "
"runtime->min_align %ld\n",
(unsigned long)runtime->dma_area,
(unsigned long)runtime->dma_addr, runtime->dma_bytes,
runtime->min_align);
- dev_dbg(socdev->dev,
+ dev_dbg(rtd->platform->dev,
"periods %d period_bytes %d stream %d\n",
params_periods(params), params_period_bytes(params),
substream->stream);
@@ -152,11 +161,7 @@ static void txx9aclc_dma_tasklet(unsigned long data)
spin_lock_irqsave(&dmadata->dma_lock, flags);
if (dmadata->frag_count < 0) {
- struct txx9aclc_soc_device *dev =
- container_of(dmadata, struct txx9aclc_soc_device,
- dmadata[substream->stream]);
- struct txx9aclc_plat_drvdata *drvdata =
- txx9aclc_get_plat_drvdata(dev);
+ struct txx9aclc_plat_drvdata *drvdata = txx9aclc_drvdata;
void __iomem *base = drvdata->base;
spin_unlock_irqrestore(&dmadata->dma_lock, flags);
@@ -202,10 +207,7 @@ static void txx9aclc_dma_tasklet(unsigned long data)
static int txx9aclc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct txx9aclc_dmadata *dmadata = substream->runtime->private_data;
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct txx9aclc_soc_device *dev =
- container_of(rtd->socdev, struct txx9aclc_soc_device, soc_dev);
- struct txx9aclc_plat_drvdata *drvdata = txx9aclc_get_plat_drvdata(dev);
+ struct txx9aclc_plat_drvdata *drvdata =txx9aclc_drvdata;
void __iomem *base = drvdata->base;
unsigned long flags;
int ret = 0;
@@ -244,9 +246,7 @@ txx9aclc_pcm_pointer(struct snd_pcm_substream *substream)
static int txx9aclc_pcm_open(struct snd_pcm_substream *substream)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct txx9aclc_soc_device *dev =
- container_of(rtd->socdev, struct txx9aclc_soc_device, soc_dev);
+ struct txx9aclc_soc_device *dev = &txx9aclc_soc_device;
struct txx9aclc_dmadata *dmadata = &dev->dmadata[substream->stream];
int ret;
@@ -291,8 +291,38 @@ static void txx9aclc_pcm_free_dma_buffers(struct snd_pcm *pcm)
static int txx9aclc_pcm_new(struct snd_card *card, struct snd_soc_dai *dai,
struct snd_pcm *pcm)
{
+ struct platform_device *pdev = to_platform_device(dai->platform->dev);
+ struct txx9aclc_soc_device *dev;
+ struct resource *r;
+ int i;
+ int ret;
+
+ /* at this point onwards the AC97 component has probed and this will be valid */
+ dev = snd_soc_dai_get_drvdata(dai);
+
+ dev->dmadata[0].stream = SNDRV_PCM_STREAM_PLAYBACK;
+ dev->dmadata[1].stream = SNDRV_PCM_STREAM_CAPTURE;
+ for (i = 0; i < 2; i++) {
+ r = platform_get_resource(pdev, IORESOURCE_DMA, i);
+ if (!r) {
+ ret = -EBUSY;
+ goto exit;
+ }
+ dev->dmadata[i].dma_res = r;
+ ret = txx9aclc_dma_init(dev, &dev->dmadata[i]);
+ if (ret)
+ goto exit;
+ }
return snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
card->dev, 64 * 1024, 4 * 1024 * 1024);
+
+exit:
+ for (i = 0; i < 2; i++) {
+ if (dev->dmadata[i].dma_chan)
+ dma_release_channel(dev->dmadata[i].dma_chan);
+ dev->dmadata[i].dma_chan = NULL;
+ }
+ return ret;
}
static bool filter(struct dma_chan *chan, void *param)
@@ -314,7 +344,7 @@ static bool filter(struct dma_chan *chan, void *param)
static int txx9aclc_dma_init(struct txx9aclc_soc_device *dev,
struct txx9aclc_dmadata *dmadata)
{
- struct txx9aclc_plat_drvdata *drvdata = txx9aclc_get_plat_drvdata(dev);
+ struct txx9aclc_plat_drvdata *drvdata =txx9aclc_drvdata;
struct txx9dmac_slave *ds = &dmadata->dma_slave;
dma_cap_mask_t mask;
@@ -334,7 +364,7 @@ static int txx9aclc_dma_init(struct txx9aclc_soc_device *dev,
dma_cap_set(DMA_SLAVE, mask);
dmadata->dma_chan = dma_request_channel(mask, filter, dmadata);
if (!dmadata->dma_chan) {
- dev_err(dev->soc_dev.dev,
+ printk(KERN_ERR
"DMA channel for %s is not available\n",
dmadata->stream == SNDRV_PCM_STREAM_PLAYBACK ?
"playback" : "capture");
@@ -345,45 +375,16 @@ static int txx9aclc_dma_init(struct txx9aclc_soc_device *dev,
return 0;
}
-static int txx9aclc_pcm_probe(struct platform_device *pdev)
+static int txx9aclc_pcm_probe(struct snd_soc_platform *platform)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct txx9aclc_soc_device *dev =
- container_of(socdev, struct txx9aclc_soc_device, soc_dev);
- struct resource *r;
- int i;
- int ret;
-
- dev->dmadata[0].stream = SNDRV_PCM_STREAM_PLAYBACK;
- dev->dmadata[1].stream = SNDRV_PCM_STREAM_CAPTURE;
- for (i = 0; i < 2; i++) {
- r = platform_get_resource(dev->aclc_pdev, IORESOURCE_DMA, i);
- if (!r) {
- ret = -EBUSY;
- goto exit;
- }
- dev->dmadata[i].dma_res = r;
- ret = txx9aclc_dma_init(dev, &dev->dmadata[i]);
- if (ret)
- goto exit;
- }
+ snd_soc_platform_set_drvdata(platform, &txx9aclc_soc_device);
return 0;
-
-exit:
- for (i = 0; i < 2; i++) {
- if (dev->dmadata[i].dma_chan)
- dma_release_channel(dev->dmadata[i].dma_chan);
- dev->dmadata[i].dma_chan = NULL;
- }
- return ret;
}
-static int txx9aclc_pcm_remove(struct platform_device *pdev)
+static int txx9aclc_pcm_remove(struct snd_soc_platform *platform)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct txx9aclc_soc_device *dev =
- container_of(socdev, struct txx9aclc_soc_device, soc_dev);
- struct txx9aclc_plat_drvdata *drvdata = txx9aclc_get_plat_drvdata(dev);
+ struct txx9aclc_soc_device *dev = snd_soc_platform_get_drvdata(platform);
+ struct txx9aclc_plat_drvdata *drvdata = txx9aclc_drvdata;
void __iomem *base = drvdata->base;
int i;
@@ -406,28 +407,46 @@ static int txx9aclc_pcm_remove(struct platform_device *pdev)
return 0;
}
-struct snd_soc_platform txx9aclc_soc_platform = {
- .name = "txx9aclc-audio",
+static struct snd_soc_platform_driver txx9aclc_soc_platform = {
.probe = txx9aclc_pcm_probe,
.remove = txx9aclc_pcm_remove,
- .pcm_ops = &txx9aclc_pcm_ops,
+ .ops = &txx9aclc_pcm_ops,
.pcm_new = txx9aclc_pcm_new,
.pcm_free = txx9aclc_pcm_free_dma_buffers,
};
-EXPORT_SYMBOL_GPL(txx9aclc_soc_platform);
-static int __init txx9aclc_soc_platform_init(void)
+static int __devinit txx9aclc_soc_platform_probe(struct platform_device *pdev)
{
- return snd_soc_register_platform(&txx9aclc_soc_platform);
+ return snd_soc_register_platform(&pdev->dev, &txx9aclc_soc_platform);
}
-static void __exit txx9aclc_soc_platform_exit(void)
+static int __devexit txx9aclc_soc_platform_remove(struct platform_device *pdev)
{
- snd_soc_unregister_platform(&txx9aclc_soc_platform);
+ snd_soc_unregister_platform(&pdev->dev);
+ return 0;
}
-module_init(txx9aclc_soc_platform_init);
-module_exit(txx9aclc_soc_platform_exit);
+static struct platform_driver txx9aclc_pcm_driver = {
+ .driver = {
+ .name = "txx9aclc-pcm-audio",
+ .owner = THIS_MODULE,
+ },
+
+ .probe = txx9aclc_soc_platform_probe,
+ .remove = __devexit_p(txx9aclc_soc_platform_remove),
+};
+
+static int __init snd_txx9aclc_pcm_init(void)
+{
+ return platform_driver_register(&txx9aclc_pcm_driver);
+}
+module_init(snd_txx9aclc_pcm_init);
+
+static void __exit snd_txx9aclc_pcm_exit(void)
+{
+ platform_driver_unregister(&txx9aclc_pcm_driver);
+}
+module_exit(snd_txx9aclc_pcm_exit);
MODULE_AUTHOR("Atsushi Nemoto <anemo@mba.ocn.ne.jp>");
MODULE_DESCRIPTION("TXx9 ACLC Audio DMA driver");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 01:44:22 +0100