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authorShawn Guo <shawn.guo@linaro.org>2012-03-16 12:56:38 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-04-01 14:28:26 +0400
commita23dc694828e3de96bf18e20459ba885ba91cb29 (patch)
tree26863bf2c6bdac975a369a20fcf6f47176c5cd55 /sound/soc/imx/imx-pcm-dma-mx2.c
parentd61e11260016f3589d60f94286c89ef823a26605 (diff)
downloadlinux-a23dc694828e3de96bf18e20459ba885ba91cb29.tar.xz
ASoC: imx: merge sound/soc/imx into sound/soc/fsl
Freescale PowerPC and ARM/IMX families share the same SSI IP block. The patch merges sound/soc/imx into sound/soc/fsl, so that the possible code sharing and consolidation can happen. This is a plain merge, except that menuconfig SND_POWERPC_SOC is added in Kconfig for PowerPC platform as a correspondence to SND_IMX_SOC for IMX platform. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/imx/imx-pcm-dma-mx2.c')
-rw-r--r--sound/soc/imx/imx-pcm-dma-mx2.c175
1 files changed, 0 insertions, 175 deletions
diff --git a/sound/soc/imx/imx-pcm-dma-mx2.c b/sound/soc/imx/imx-pcm-dma-mx2.c
deleted file mode 100644
index 6b818de2fc03..000000000000
--- a/sound/soc/imx/imx-pcm-dma-mx2.c
+++ /dev/null
@@ -1,175 +0,0 @@
-/*
- * imx-pcm-dma-mx2.c -- ALSA Soc Audio Layer
- *
- * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
- *
- * This code is based on code copyrighted by Freescale,
- * Liam Girdwood, Javier Martin and probably others.
- *
- * 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.
- */
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/dma-mapping.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/dmaengine.h>
-#include <linux/types.h>
-
-#include <sound/core.h>
-#include <sound/initval.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-#include <sound/dmaengine_pcm.h>
-
-#include <mach/dma.h>
-
-#include "imx-pcm.h"
-
-static bool filter(struct dma_chan *chan, void *param)
-{
- if (!imx_dma_is_general_purpose(chan))
- return false;
-
- chan->private = param;
-
- return true;
-}
-
-static int snd_imx_pcm_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream);
- struct imx_pcm_dma_params *dma_params;
- struct dma_slave_config slave_config;
- int ret;
-
- dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
-
- ret = snd_hwparams_to_dma_slave_config(substream, params, &slave_config);
- if (ret)
- return ret;
-
- slave_config.device_fc = false;
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- slave_config.dst_addr = dma_params->dma_addr;
- slave_config.dst_maxburst = dma_params->burstsize;
- } else {
- slave_config.src_addr = dma_params->dma_addr;
- slave_config.src_maxburst = dma_params->burstsize;
- }
-
- ret = dmaengine_slave_config(chan, &slave_config);
- if (ret)
- return ret;
-
- snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
-
- return 0;
-}
-
-static struct snd_pcm_hardware snd_imx_hardware = {
- .info = SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_BLOCK_TRANSFER |
- SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID |
- SNDRV_PCM_INFO_PAUSE |
- SNDRV_PCM_INFO_RESUME,
- .formats = SNDRV_PCM_FMTBIT_S16_LE,
- .rate_min = 8000,
- .channels_min = 2,
- .channels_max = 2,
- .buffer_bytes_max = IMX_SSI_DMABUF_SIZE,
- .period_bytes_min = 128,
- .period_bytes_max = 65535, /* Limited by SDMA engine */
- .periods_min = 2,
- .periods_max = 255,
- .fifo_size = 0,
-};
-
-static int snd_imx_open(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct imx_pcm_dma_params *dma_params;
- struct imx_dma_data *dma_data;
- int ret;
-
- snd_soc_set_runtime_hwparams(substream, &snd_imx_hardware);
-
- dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
-
- dma_data = kzalloc(sizeof(*dma_data), GFP_KERNEL);
- dma_data->peripheral_type = IMX_DMATYPE_SSI;
- dma_data->priority = DMA_PRIO_HIGH;
- dma_data->dma_request = dma_params->dma;
-
- ret = snd_dmaengine_pcm_open(substream, filter, dma_data);
- if (ret) {
- kfree(dma_data);
- return 0;
- }
-
- snd_dmaengine_pcm_set_data(substream, dma_data);
-
- return 0;
-}
-
-static int snd_imx_close(struct snd_pcm_substream *substream)
-{
- struct imx_dma_data *dma_data = snd_dmaengine_pcm_get_data(substream);
-
- snd_dmaengine_pcm_close(substream);
- kfree(dma_data);
-
- return 0;
-}
-
-static struct snd_pcm_ops imx_pcm_ops = {
- .open = snd_imx_open,
- .close = snd_imx_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = snd_imx_pcm_hw_params,
- .trigger = snd_dmaengine_pcm_trigger,
- .pointer = snd_dmaengine_pcm_pointer,
- .mmap = snd_imx_pcm_mmap,
-};
-
-static struct snd_soc_platform_driver imx_soc_platform_mx2 = {
- .ops = &imx_pcm_ops,
- .pcm_new = imx_pcm_new,
- .pcm_free = imx_pcm_free,
-};
-
-static int __devinit imx_soc_platform_probe(struct platform_device *pdev)
-{
- return snd_soc_register_platform(&pdev->dev, &imx_soc_platform_mx2);
-}
-
-static int __devexit imx_soc_platform_remove(struct platform_device *pdev)
-{
- snd_soc_unregister_platform(&pdev->dev);
- return 0;
-}
-
-static struct platform_driver imx_pcm_driver = {
- .driver = {
- .name = "imx-pcm-audio",
- .owner = THIS_MODULE,
- },
- .probe = imx_soc_platform_probe,
- .remove = __devexit_p(imx_soc_platform_remove),
-};
-
-module_platform_driver(imx_pcm_driver);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:imx-pcm-audio");