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ASoC: au1x: convert to platform drivers.
Convert psc-ac97,i2s to platform drivers similar to the davinci ones. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Manuel Lauss
Mark Brown
parent
6c508c62f9
commit
0f83d639d8
4 changed files with 413 additions and 232 deletions
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@ -2,7 +2,7 @@
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* Au12x0/Au1550 PSC ALSA ASoC audio support.
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*
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* (c) 2007-2008 MSC Vertriebsges.m.b.H.,
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* Manuel Lauss <mano@roarinelk.homelinux.net>
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* Manuel Lauss <manuel.lauss@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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@ -332,6 +332,30 @@ static int au1xpsc_pcm_new(struct snd_card *card,
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}
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static int au1xpsc_pcm_probe(struct platform_device *pdev)
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{
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if (!au1xpsc_audio_pcmdma[PCM_TX] || !au1xpsc_audio_pcmdma[PCM_RX])
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return -ENODEV;
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return 0;
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}
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static int au1xpsc_pcm_remove(struct platform_device *pdev)
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{
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return 0;
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}
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/* au1xpsc audio platform */
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struct snd_soc_platform au1xpsc_soc_platform = {
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.name = "au1xpsc-pcm-dbdma",
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.probe = au1xpsc_pcm_probe,
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.remove = au1xpsc_pcm_remove,
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.pcm_ops = &au1xpsc_pcm_ops,
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.pcm_new = au1xpsc_pcm_new,
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.pcm_free = au1xpsc_pcm_free_dma_buffers,
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};
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EXPORT_SYMBOL_GPL(au1xpsc_soc_platform);
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static int __devinit au1xpsc_pcm_drvprobe(struct platform_device *pdev)
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{
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struct resource *r;
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int ret;
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@ -365,7 +389,9 @@ static int au1xpsc_pcm_probe(struct platform_device *pdev)
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}
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(au1xpsc_audio_pcmdma[PCM_RX])->ddma_id = r->start;
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return 0;
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ret = snd_soc_register_platform(&au1xpsc_soc_platform);
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if (!ret)
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return ret;
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out2:
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kfree(au1xpsc_audio_pcmdma[PCM_RX]);
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@ -376,10 +402,12 @@ out1:
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return ret;
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}
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static int au1xpsc_pcm_remove(struct platform_device *pdev)
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static int __devexit au1xpsc_pcm_drvremove(struct platform_device *pdev)
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{
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int i;
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snd_soc_unregister_platform(&au1xpsc_soc_platform);
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for (i = 0; i < 2; i++) {
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if (au1xpsc_audio_pcmdma[i]) {
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au1x_pcm_dbdma_free(au1xpsc_audio_pcmdma[i]);
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@ -391,32 +419,83 @@ static int au1xpsc_pcm_remove(struct platform_device *pdev)
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return 0;
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}
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/* au1xpsc audio platform */
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struct snd_soc_platform au1xpsc_soc_platform = {
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.name = "au1xpsc-pcm-dbdma",
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.probe = au1xpsc_pcm_probe,
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.remove = au1xpsc_pcm_remove,
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.pcm_ops = &au1xpsc_pcm_ops,
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.pcm_new = au1xpsc_pcm_new,
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.pcm_free = au1xpsc_pcm_free_dma_buffers,
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static struct platform_driver au1xpsc_pcm_driver = {
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.driver = {
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.name = "au1xpsc-pcm",
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.owner = THIS_MODULE,
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},
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.probe = au1xpsc_pcm_drvprobe,
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.remove = __devexit_p(au1xpsc_pcm_drvremove),
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};
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EXPORT_SYMBOL_GPL(au1xpsc_soc_platform);
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static int __init au1xpsc_audio_dbdma_init(void)
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static int __init au1xpsc_audio_dbdma_load(void)
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{
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au1xpsc_audio_pcmdma[PCM_TX] = NULL;
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au1xpsc_audio_pcmdma[PCM_RX] = NULL;
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return snd_soc_register_platform(&au1xpsc_soc_platform);
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return platform_driver_register(&au1xpsc_pcm_driver);
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}
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static void __exit au1xpsc_audio_dbdma_exit(void)
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static void __exit au1xpsc_audio_dbdma_unload(void)
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{
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snd_soc_unregister_platform(&au1xpsc_soc_platform);
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platform_driver_unregister(&au1xpsc_pcm_driver);
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}
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module_init(au1xpsc_audio_dbdma_init);
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module_exit(au1xpsc_audio_dbdma_exit);
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module_init(au1xpsc_audio_dbdma_load);
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module_exit(au1xpsc_audio_dbdma_unload);
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struct platform_device *au1xpsc_pcm_add(struct platform_device *pdev)
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{
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struct resource *res, *r;
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struct platform_device *pd;
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int id[2];
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int ret;
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r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
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if (!r)
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return NULL;
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id[0] = r->start;
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r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
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if (!r)
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return NULL;
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id[1] = r->start;
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res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
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if (!res)
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return NULL;
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res[0].start = res[0].end = id[0];
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res[1].start = res[1].end = id[1];
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res[0].flags = res[1].flags = IORESOURCE_DMA;
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pd = platform_device_alloc("au1xpsc-pcm", -1);
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if (!pd)
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goto out;
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pd->resource = res;
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pd->num_resources = 2;
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ret = platform_device_add(pd);
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if (!ret)
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return pd;
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out:
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kfree(res);
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return NULL;
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}
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EXPORT_SYMBOL_GPL(au1xpsc_pcm_add);
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void au1xpsc_pcm_destroy(struct platform_device *dmapd)
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{
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if (dmapd) {
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kfree(dmapd->resource);
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dmapd->resource = NULL;
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platform_device_unregister(dmapd);
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}
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}
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EXPORT_SYMBOL_GPL(au1xpsc_pcm_destroy);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("Au12x0/Au1550 PSC Audio DMA driver");
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MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>");
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MODULE_AUTHOR("Manuel Lauss");
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@ -317,109 +317,12 @@ static int au1xpsc_ac97_trigger(struct snd_pcm_substream *substream,
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static int au1xpsc_ac97_probe(struct platform_device *pdev,
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struct snd_soc_dai *dai)
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{
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int ret;
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struct resource *r;
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unsigned long sel;
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if (au1xpsc_ac97_workdata)
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return -EBUSY;
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au1xpsc_ac97_workdata =
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kzalloc(sizeof(struct au1xpsc_audio_data), GFP_KERNEL);
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if (!au1xpsc_ac97_workdata)
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return -ENOMEM;
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mutex_init(&au1xpsc_ac97_workdata->lock);
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r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!r) {
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ret = -ENODEV;
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goto out0;
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}
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ret = -EBUSY;
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au1xpsc_ac97_workdata->ioarea =
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request_mem_region(r->start, r->end - r->start + 1,
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"au1xpsc_ac97");
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if (!au1xpsc_ac97_workdata->ioarea)
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goto out0;
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au1xpsc_ac97_workdata->mmio = ioremap(r->start, 0xffff);
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if (!au1xpsc_ac97_workdata->mmio)
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goto out1;
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/* configuration: max dma trigger threshold, enable ac97 */
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au1xpsc_ac97_workdata->cfg = PSC_AC97CFG_RT_FIFO8 |
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PSC_AC97CFG_TT_FIFO8 |
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PSC_AC97CFG_DE_ENABLE;
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/* preserve PSC clock source set up by platform (dev.platform_data
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* is already occupied by soc layer)
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*/
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sel = au_readl(PSC_SEL(au1xpsc_ac97_workdata)) & PSC_SEL_CLK_MASK;
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au_writel(PSC_CTRL_DISABLE, PSC_CTRL(au1xpsc_ac97_workdata));
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au_sync();
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au_writel(0, PSC_SEL(au1xpsc_ac97_workdata));
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au_sync();
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au_writel(PSC_SEL_PS_AC97MODE | sel, PSC_SEL(au1xpsc_ac97_workdata));
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au_sync();
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/* next up: cold reset. Dont check for PSC-ready now since
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* there may not be any codec clock yet.
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*/
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return 0;
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out1:
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release_resource(au1xpsc_ac97_workdata->ioarea);
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kfree(au1xpsc_ac97_workdata->ioarea);
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out0:
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kfree(au1xpsc_ac97_workdata);
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au1xpsc_ac97_workdata = NULL;
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return ret;
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return au1xpsc_ac97_workdata ? 0 : -ENODEV;
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}
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static void au1xpsc_ac97_remove(struct platform_device *pdev,
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struct snd_soc_dai *dai)
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{
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/* disable PSC completely */
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au_writel(0, AC97_CFG(au1xpsc_ac97_workdata));
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au_sync();
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au_writel(PSC_CTRL_DISABLE, PSC_CTRL(au1xpsc_ac97_workdata));
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au_sync();
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iounmap(au1xpsc_ac97_workdata->mmio);
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release_resource(au1xpsc_ac97_workdata->ioarea);
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kfree(au1xpsc_ac97_workdata->ioarea);
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kfree(au1xpsc_ac97_workdata);
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au1xpsc_ac97_workdata = NULL;
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}
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static int au1xpsc_ac97_suspend(struct snd_soc_dai *dai)
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{
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/* save interesting registers and disable PSC */
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au1xpsc_ac97_workdata->pm[0] =
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au_readl(PSC_SEL(au1xpsc_ac97_workdata));
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au_writel(0, AC97_CFG(au1xpsc_ac97_workdata));
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au_sync();
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au_writel(PSC_CTRL_DISABLE, PSC_CTRL(au1xpsc_ac97_workdata));
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au_sync();
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return 0;
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}
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static int au1xpsc_ac97_resume(struct snd_soc_dai *dai)
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{
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/* restore PSC clock config */
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au_writel(au1xpsc_ac97_workdata->pm[0] | PSC_SEL_PS_AC97MODE,
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PSC_SEL(au1xpsc_ac97_workdata));
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au_sync();
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/* after this point the ac97 core will cold-reset the codec.
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* During cold-reset the PSC is reinitialized and the last
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* configuration set up in hw_params() is restored.
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*/
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return 0;
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}
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static struct snd_soc_dai_ops au1xpsc_ac97_dai_ops = {
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@ -432,8 +335,6 @@ struct snd_soc_dai au1xpsc_ac97_dai = {
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.ac97_control = 1,
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.probe = au1xpsc_ac97_probe,
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.remove = au1xpsc_ac97_remove,
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.suspend = au1xpsc_ac97_suspend,
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.resume = au1xpsc_ac97_resume,
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.playback = {
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.rates = AC97_RATES,
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.formats = AC97_FMTS,
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@ -450,20 +351,165 @@ struct snd_soc_dai au1xpsc_ac97_dai = {
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};
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EXPORT_SYMBOL_GPL(au1xpsc_ac97_dai);
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static int __init au1xpsc_ac97_init(void)
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static int __devinit au1xpsc_ac97_drvprobe(struct platform_device *pdev)
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{
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int ret;
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struct resource *r;
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unsigned long sel;
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struct au1xpsc_audio_data *wd;
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if (au1xpsc_ac97_workdata)
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return -EBUSY;
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wd = kzalloc(sizeof(struct au1xpsc_audio_data), GFP_KERNEL);
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if (!wd)
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return -ENOMEM;
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mutex_init(&wd->lock);
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r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!r) {
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ret = -ENODEV;
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goto out0;
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}
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ret = -EBUSY;
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wd->ioarea = request_mem_region(r->start, r->end - r->start + 1,
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"au1xpsc_ac97");
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if (!wd->ioarea)
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goto out0;
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wd->mmio = ioremap(r->start, 0xffff);
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if (!wd->mmio)
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goto out1;
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/* configuration: max dma trigger threshold, enable ac97 */
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wd->cfg = PSC_AC97CFG_RT_FIFO8 | PSC_AC97CFG_TT_FIFO8 |
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PSC_AC97CFG_DE_ENABLE;
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/* preserve PSC clock source set up by platform */
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sel = au_readl(PSC_SEL(wd)) & PSC_SEL_CLK_MASK;
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au_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
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au_sync();
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au_writel(0, PSC_SEL(wd));
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au_sync();
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au_writel(PSC_SEL_PS_AC97MODE | sel, PSC_SEL(wd));
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au_sync();
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ret = snd_soc_register_dai(&au1xpsc_ac97_dai);
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if (ret)
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goto out1;
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wd->dmapd = au1xpsc_pcm_add(pdev);
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if (wd->dmapd) {
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platform_set_drvdata(pdev, wd);
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au1xpsc_ac97_workdata = wd; /* MDEV */
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return 0;
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}
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snd_soc_unregister_dai(&au1xpsc_ac97_dai);
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out1:
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release_resource(wd->ioarea);
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kfree(wd->ioarea);
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out0:
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kfree(wd);
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return ret;
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}
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static int __devexit au1xpsc_ac97_drvremove(struct platform_device *pdev)
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{
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struct au1xpsc_audio_data *wd = platform_get_drvdata(pdev);
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if (wd->dmapd)
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au1xpsc_pcm_destroy(wd->dmapd);
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snd_soc_unregister_dai(&au1xpsc_ac97_dai);
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/* disable PSC completely */
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au_writel(0, AC97_CFG(wd));
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au_sync();
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au_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
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au_sync();
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iounmap(wd->mmio);
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release_resource(wd->ioarea);
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kfree(wd->ioarea);
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kfree(wd);
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au1xpsc_ac97_workdata = NULL; /* MDEV */
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return 0;
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}
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#ifdef CONFIG_PM
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static int au1xpsc_ac97_drvsuspend(struct device *dev)
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{
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struct au1xpsc_audio_data *wd = dev_get_drvdata(dev);
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/* save interesting registers and disable PSC */
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wd->pm[0] = au_readl(PSC_SEL(wd));
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au_writel(0, AC97_CFG(wd));
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au_sync();
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au_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
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au_sync();
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return 0;
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}
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static int au1xpsc_ac97_drvresume(struct device *dev)
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{
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struct au1xpsc_audio_data *wd = dev_get_drvdata(dev);
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/* restore PSC clock config */
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au_writel(wd->pm[0] | PSC_SEL_PS_AC97MODE, PSC_SEL(wd));
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au_sync();
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/* after this point the ac97 core will cold-reset the codec.
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* During cold-reset the PSC is reinitialized and the last
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* configuration set up in hw_params() is restored.
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*/
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return 0;
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}
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static struct dev_pm_ops au1xpscac97_pmops = {
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.suspend = au1xpsc_ac97_drvsuspend,
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.resume = au1xpsc_ac97_drvresume,
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};
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#define AU1XPSCAC97_PMOPS &au1xpscac97_pmops
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#else
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#define AU1XPSCAC97_PMOPS NULL
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#endif
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static struct platform_driver au1xpsc_ac97_driver = {
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.driver = {
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.name = "au1xpsc_ac97",
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.owner = THIS_MODULE,
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.pm = AU1XPSCAC97_PMOPS,
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},
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.probe = au1xpsc_ac97_drvprobe,
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.remove = __devexit_p(au1xpsc_ac97_drvremove),
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};
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static int __init au1xpsc_ac97_load(void)
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{
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au1xpsc_ac97_workdata = NULL;
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return snd_soc_register_dai(&au1xpsc_ac97_dai);
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return platform_driver_register(&au1xpsc_ac97_driver);
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}
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|
||||
static void __exit au1xpsc_ac97_exit(void)
|
||||
static void __exit au1xpsc_ac97_unload(void)
|
||||
{
|
||||
snd_soc_unregister_dai(&au1xpsc_ac97_dai);
|
||||
platform_driver_unregister(&au1xpsc_ac97_driver);
|
||||
}
|
||||
|
||||
module_init(au1xpsc_ac97_init);
|
||||
module_exit(au1xpsc_ac97_exit);
|
||||
module_init(au1xpsc_ac97_load);
|
||||
module_exit(au1xpsc_ac97_unload);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DESCRIPTION("Au12x0/Au1550 PSC AC97 ALSA ASoC audio driver");
|
||||
MODULE_AUTHOR("Manuel Lauss <manuel.lauss@gmail.com>");
|
||||
MODULE_AUTHOR("Manuel Lauss");
|
||||
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@
|
|||
* Au12x0/Au1550 PSC ALSA ASoC audio support.
|
||||
*
|
||||
* (c) 2007-2008 MSC Vertriebsges.m.b.H.,
|
||||
* Manuel Lauss <mano@roarinelk.homelinux.net>
|
||||
* Manuel Lauss <manuel.lauss@gmail.com>
|
||||
*
|
||||
* 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
|
||||
|
|
@ -265,106 +265,12 @@ static int au1xpsc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
|
|||
static int au1xpsc_i2s_probe(struct platform_device *pdev,
|
||||
struct snd_soc_dai *dai)
|
||||
{
|
||||
struct resource *r;
|
||||
unsigned long sel;
|
||||
int ret;
|
||||
|
||||
if (au1xpsc_i2s_workdata)
|
||||
return -EBUSY;
|
||||
|
||||
au1xpsc_i2s_workdata =
|
||||
kzalloc(sizeof(struct au1xpsc_audio_data), GFP_KERNEL);
|
||||
if (!au1xpsc_i2s_workdata)
|
||||
return -ENOMEM;
|
||||
|
||||
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
if (!r) {
|
||||
ret = -ENODEV;
|
||||
goto out0;
|
||||
}
|
||||
|
||||
ret = -EBUSY;
|
||||
au1xpsc_i2s_workdata->ioarea =
|
||||
request_mem_region(r->start, r->end - r->start + 1,
|
||||
"au1xpsc_i2s");
|
||||
if (!au1xpsc_i2s_workdata->ioarea)
|
||||
goto out0;
|
||||
|
||||
au1xpsc_i2s_workdata->mmio = ioremap(r->start, 0xffff);
|
||||
if (!au1xpsc_i2s_workdata->mmio)
|
||||
goto out1;
|
||||
|
||||
/* preserve PSC clock source set up by platform (dev.platform_data
|
||||
* is already occupied by soc layer)
|
||||
*/
|
||||
sel = au_readl(PSC_SEL(au1xpsc_i2s_workdata)) & PSC_SEL_CLK_MASK;
|
||||
au_writel(PSC_CTRL_DISABLE, PSC_CTRL(au1xpsc_i2s_workdata));
|
||||
au_sync();
|
||||
au_writel(PSC_SEL_PS_I2SMODE | sel, PSC_SEL(au1xpsc_i2s_workdata));
|
||||
au_writel(0, I2S_CFG(au1xpsc_i2s_workdata));
|
||||
au_sync();
|
||||
|
||||
/* preconfigure: set max rx/tx fifo depths */
|
||||
au1xpsc_i2s_workdata->cfg |=
|
||||
PSC_I2SCFG_RT_FIFO8 | PSC_I2SCFG_TT_FIFO8;
|
||||
|
||||
/* don't wait for I2S core to become ready now; clocks may not
|
||||
* be running yet; depending on clock input for PSC a wait might
|
||||
* time out.
|
||||
*/
|
||||
|
||||
return 0;
|
||||
|
||||
out1:
|
||||
release_resource(au1xpsc_i2s_workdata->ioarea);
|
||||
kfree(au1xpsc_i2s_workdata->ioarea);
|
||||
out0:
|
||||
kfree(au1xpsc_i2s_workdata);
|
||||
au1xpsc_i2s_workdata = NULL;
|
||||
return ret;
|
||||
return au1xpsc_i2s_workdata ? 0 : -ENODEV;
|
||||
}
|
||||
|
||||
static void au1xpsc_i2s_remove(struct platform_device *pdev,
|
||||
struct snd_soc_dai *dai)
|
||||
{
|
||||
au_writel(0, I2S_CFG(au1xpsc_i2s_workdata));
|
||||
au_sync();
|
||||
au_writel(PSC_CTRL_DISABLE, PSC_CTRL(au1xpsc_i2s_workdata));
|
||||
au_sync();
|
||||
|
||||
iounmap(au1xpsc_i2s_workdata->mmio);
|
||||
release_resource(au1xpsc_i2s_workdata->ioarea);
|
||||
kfree(au1xpsc_i2s_workdata->ioarea);
|
||||
kfree(au1xpsc_i2s_workdata);
|
||||
au1xpsc_i2s_workdata = NULL;
|
||||
}
|
||||
|
||||
static int au1xpsc_i2s_suspend(struct snd_soc_dai *cpu_dai)
|
||||
{
|
||||
/* save interesting register and disable PSC */
|
||||
au1xpsc_i2s_workdata->pm[0] =
|
||||
au_readl(PSC_SEL(au1xpsc_i2s_workdata));
|
||||
|
||||
au_writel(0, I2S_CFG(au1xpsc_i2s_workdata));
|
||||
au_sync();
|
||||
au_writel(PSC_CTRL_DISABLE, PSC_CTRL(au1xpsc_i2s_workdata));
|
||||
au_sync();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int au1xpsc_i2s_resume(struct snd_soc_dai *cpu_dai)
|
||||
{
|
||||
/* select I2S mode and PSC clock */
|
||||
au_writel(PSC_CTRL_DISABLE, PSC_CTRL(au1xpsc_i2s_workdata));
|
||||
au_sync();
|
||||
au_writel(0, PSC_SEL(au1xpsc_i2s_workdata));
|
||||
au_sync();
|
||||
au_writel(au1xpsc_i2s_workdata->pm[0],
|
||||
PSC_SEL(au1xpsc_i2s_workdata));
|
||||
au_sync();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct snd_soc_dai_ops au1xpsc_i2s_dai_ops = {
|
||||
|
|
@ -377,8 +283,6 @@ struct snd_soc_dai au1xpsc_i2s_dai = {
|
|||
.name = "au1xpsc_i2s",
|
||||
.probe = au1xpsc_i2s_probe,
|
||||
.remove = au1xpsc_i2s_remove,
|
||||
.suspend = au1xpsc_i2s_suspend,
|
||||
.resume = au1xpsc_i2s_resume,
|
||||
.playback = {
|
||||
.rates = AU1XPSC_I2S_RATES,
|
||||
.formats = AU1XPSC_I2S_FMTS,
|
||||
|
|
@ -395,20 +299,167 @@ struct snd_soc_dai au1xpsc_i2s_dai = {
|
|||
};
|
||||
EXPORT_SYMBOL(au1xpsc_i2s_dai);
|
||||
|
||||
static int __init au1xpsc_i2s_init(void)
|
||||
static int __init au1xpsc_i2s_drvprobe(struct platform_device *pdev)
|
||||
{
|
||||
struct resource *r;
|
||||
unsigned long sel;
|
||||
int ret;
|
||||
struct au1xpsc_audio_data *wd;
|
||||
|
||||
if (au1xpsc_i2s_workdata)
|
||||
return -EBUSY;
|
||||
|
||||
wd = kzalloc(sizeof(struct au1xpsc_audio_data), GFP_KERNEL);
|
||||
if (!wd)
|
||||
return -ENOMEM;
|
||||
|
||||
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
if (!r) {
|
||||
ret = -ENODEV;
|
||||
goto out0;
|
||||
}
|
||||
|
||||
ret = -EBUSY;
|
||||
wd->ioarea = request_mem_region(r->start, r->end - r->start + 1,
|
||||
"au1xpsc_i2s");
|
||||
if (!wd->ioarea)
|
||||
goto out0;
|
||||
|
||||
wd->mmio = ioremap(r->start, 0xffff);
|
||||
if (!wd->mmio)
|
||||
goto out1;
|
||||
|
||||
/* preserve PSC clock source set up by platform (dev.platform_data
|
||||
* is already occupied by soc layer)
|
||||
*/
|
||||
sel = au_readl(PSC_SEL(wd)) & PSC_SEL_CLK_MASK;
|
||||
au_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
|
||||
au_sync();
|
||||
au_writel(PSC_SEL_PS_I2SMODE | sel, PSC_SEL(wd));
|
||||
au_writel(0, I2S_CFG(wd));
|
||||
au_sync();
|
||||
|
||||
/* preconfigure: set max rx/tx fifo depths */
|
||||
wd->cfg |= PSC_I2SCFG_RT_FIFO8 | PSC_I2SCFG_TT_FIFO8;
|
||||
|
||||
/* don't wait for I2S core to become ready now; clocks may not
|
||||
* be running yet; depending on clock input for PSC a wait might
|
||||
* time out.
|
||||
*/
|
||||
|
||||
ret = snd_soc_register_dai(&au1xpsc_i2s_dai);
|
||||
if (ret)
|
||||
goto out1;
|
||||
|
||||
/* finally add the DMA device for this PSC */
|
||||
wd->dmapd = au1xpsc_pcm_add(pdev);
|
||||
if (wd->dmapd) {
|
||||
platform_set_drvdata(pdev, wd);
|
||||
au1xpsc_i2s_workdata = wd;
|
||||
return 0;
|
||||
}
|
||||
|
||||
snd_soc_unregister_dai(&au1xpsc_i2s_dai);
|
||||
out1:
|
||||
release_resource(wd->ioarea);
|
||||
kfree(wd->ioarea);
|
||||
out0:
|
||||
kfree(wd);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int __devexit au1xpsc_i2s_drvremove(struct platform_device *pdev)
|
||||
{
|
||||
struct au1xpsc_audio_data *wd = platform_get_drvdata(pdev);
|
||||
|
||||
if (wd->dmapd)
|
||||
au1xpsc_pcm_destroy(wd->dmapd);
|
||||
|
||||
snd_soc_unregister_dai(&au1xpsc_i2s_dai);
|
||||
|
||||
au_writel(0, I2S_CFG(wd));
|
||||
au_sync();
|
||||
au_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
|
||||
au_sync();
|
||||
|
||||
iounmap(wd->mmio);
|
||||
release_resource(wd->ioarea);
|
||||
kfree(wd->ioarea);
|
||||
kfree(wd);
|
||||
|
||||
au1xpsc_i2s_workdata = NULL; /* MDEV */
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
static int au1xpsc_i2s_drvsuspend(struct device *dev)
|
||||
{
|
||||
struct au1xpsc_audio_data *wd = dev_get_drvdata(dev);
|
||||
|
||||
/* save interesting register and disable PSC */
|
||||
wd->pm[0] = au_readl(PSC_SEL(wd));
|
||||
|
||||
au_writel(0, I2S_CFG(wd));
|
||||
au_sync();
|
||||
au_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
|
||||
au_sync();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int au1xpsc_i2s_drvresume(struct device *dev)
|
||||
{
|
||||
struct au1xpsc_audio_data *wd = dev_get_drvdata(dev);
|
||||
|
||||
/* select I2S mode and PSC clock */
|
||||
au_writel(PSC_CTRL_DISABLE, PSC_CTRL(wd));
|
||||
au_sync();
|
||||
au_writel(0, PSC_SEL(wd));
|
||||
au_sync();
|
||||
au_writel(wd->pm[0], PSC_SEL(wd));
|
||||
au_sync();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct dev_pm_ops au1xpsci2s_pmops = {
|
||||
.suspend = au1xpsc_i2s_drvsuspend,
|
||||
.resume = au1xpsc_i2s_drvresume,
|
||||
};
|
||||
|
||||
#define AU1XPSCI2S_PMOPS &au1xpsci2s_pmops
|
||||
|
||||
#else
|
||||
|
||||
#define AU1XPSCI2S_PMOPS NULL
|
||||
|
||||
#endif
|
||||
|
||||
static struct platform_driver au1xpsc_i2s_driver = {
|
||||
.driver = {
|
||||
.name = "au1xpsc_i2s",
|
||||
.owner = THIS_MODULE,
|
||||
.pm = AU1XPSCI2S_PMOPS,
|
||||
},
|
||||
.probe = au1xpsc_i2s_drvprobe,
|
||||
.remove = __devexit_p(au1xpsc_i2s_drvremove),
|
||||
};
|
||||
|
||||
static int __init au1xpsc_i2s_load(void)
|
||||
{
|
||||
au1xpsc_i2s_workdata = NULL;
|
||||
return snd_soc_register_dai(&au1xpsc_i2s_dai);
|
||||
return platform_driver_register(&au1xpsc_i2s_driver);
|
||||
}
|
||||
|
||||
static void __exit au1xpsc_i2s_exit(void)
|
||||
static void __exit au1xpsc_i2s_unload(void)
|
||||
{
|
||||
snd_soc_unregister_dai(&au1xpsc_i2s_dai);
|
||||
platform_driver_unregister(&au1xpsc_i2s_driver);
|
||||
}
|
||||
|
||||
module_init(au1xpsc_i2s_init);
|
||||
module_exit(au1xpsc_i2s_exit);
|
||||
module_init(au1xpsc_i2s_load);
|
||||
module_exit(au1xpsc_i2s_unload);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DESCRIPTION("Au12x0/Au1550 PSC I2S ALSA ASoC audio driver");
|
||||
MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>");
|
||||
MODULE_AUTHOR("Manuel Lauss");
|
||||
|
|
|
|||
|
|
@ -2,7 +2,7 @@
|
|||
* Au12x0/Au1550 PSC ALSA ASoC audio support.
|
||||
*
|
||||
* (c) 2007-2008 MSC Vertriebsges.m.b.H.,
|
||||
* Manuel Lauss <mano@roarinelk.homelinux.net>
|
||||
* Manuel Lauss <manuel.lauss@gmail.com>
|
||||
*
|
||||
* 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
|
||||
|
|
@ -21,6 +21,10 @@ extern struct snd_soc_dai au1xpsc_i2s_dai;
|
|||
extern struct snd_soc_platform au1xpsc_soc_platform;
|
||||
extern struct snd_ac97_bus_ops soc_ac97_ops;
|
||||
|
||||
/* DBDMA helpers */
|
||||
extern struct platform_device *au1xpsc_pcm_add(struct platform_device *pdev);
|
||||
extern void au1xpsc_pcm_destroy(struct platform_device *dmapd);
|
||||
|
||||
struct au1xpsc_audio_data {
|
||||
void __iomem *mmio;
|
||||
|
||||
|
|
@ -30,6 +34,7 @@ struct au1xpsc_audio_data {
|
|||
unsigned long pm[2];
|
||||
struct resource *ioarea;
|
||||
struct mutex lock;
|
||||
struct platform_device *dmapd;
|
||||
};
|
||||
|
||||
#define PCM_TX 0
|
||||
|
|
|
|||
Loading…
Reference in a new issue