1 files changed, 0 insertions, 345 deletions
diff --git a/sound/soc/blackfin/bf5xx-tdm-pcm.c b/sound/soc/blackfin/bf5xx-tdm-pcm.c
deleted file mode 100644
index 0e6b888bb4c..00000000000
--- a/sound/soc/blackfin/bf5xx-tdm-pcm.c
+++ /dev/null
@@ -1,345 +0,0 @@
-/*
- * File:         sound/soc/blackfin/bf5xx-tdm-pcm.c
- * Author:       Barry Song <Barry.Song@analog.com>
- *
- * Created:      Tue June 06 2009
- * Description:  DMA driver for tdm codec
- *
- * Modified:
- *               Copyright 2009 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/gfp.h>
-
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-#include <asm/dma.h>
-
-#include "bf5xx-tdm-pcm.h"
-#include "bf5xx-tdm.h"
-#include "bf5xx-sport.h"
-
-#define PCM_BUFFER_MAX  0x8000
-#define FRAGMENT_SIZE_MIN  (4*1024)
-#define FRAGMENTS_MIN  2
-#define FRAGMENTS_MAX  32
-
-static void bf5xx_dma_irq(void *data)
-{
-	struct snd_pcm_substream *pcm = data;
-	snd_pcm_period_elapsed(pcm);
-}
-
-static const struct snd_pcm_hardware bf5xx_pcm_hardware = {
-	.info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
-		SNDRV_PCM_INFO_RESUME),
-	.formats =          SNDRV_PCM_FMTBIT_S32_LE,
-	.rates =            SNDRV_PCM_RATE_48000,
-	.channels_min =     2,
-	.channels_max =     8,
-	.buffer_bytes_max = PCM_BUFFER_MAX,
-	.period_bytes_min = FRAGMENT_SIZE_MIN,
-	.period_bytes_max = PCM_BUFFER_MAX/2,
-	.periods_min =      FRAGMENTS_MIN,
-	.periods_max =      FRAGMENTS_MAX,
-};
-
-static int bf5xx_pcm_hw_params(struct snd_pcm_substream *substream,
-	struct snd_pcm_hw_params *params)
-{
-	size_t size = bf5xx_pcm_hardware.buffer_bytes_max;
-	snd_pcm_lib_malloc_pages(substream, size * 4);
-
-	return 0;
-}
-
-static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream)
-{
-	snd_pcm_lib_free_pages(substream);
-
-	return 0;
-}
-
-static int bf5xx_pcm_prepare(struct snd_pcm_substream *substream)
-{
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct sport_device *sport = runtime->private_data;
-	int fragsize_bytes = frames_to_bytes(runtime, runtime->period_size);
-
-	fragsize_bytes /= runtime->channels;
-	/* inflate the fragsize to match the dma width of SPORT */
-	fragsize_bytes *= 8;
-
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		sport_set_tx_callback(sport, bf5xx_dma_irq, substream);
-		sport_config_tx_dma(sport, runtime->dma_area,
-			runtime->periods, fragsize_bytes);
-	} else {
-		sport_set_rx_callback(sport, bf5xx_dma_irq, substream);
-		sport_config_rx_dma(sport, runtime->dma_area,
-			runtime->periods, fragsize_bytes);
-	}
-
-	return 0;
-}
-
-static int bf5xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
-{
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct sport_device *sport = runtime->private_data;
-	int ret = 0;
-
-	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_START:
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-			sport_tx_start(sport);
-		else
-			sport_rx_start(sport);
-		break;
-	case SNDRV_PCM_TRIGGER_STOP:
-	case SNDRV_PCM_TRIGGER_SUSPEND:
-	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-			sport_tx_stop(sport);
-		else
-			sport_rx_stop(sport);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	return ret;
-}
-
-static snd_pcm_uframes_t bf5xx_pcm_pointer(struct snd_pcm_substream *substream)
-{
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct sport_device *sport = runtime->private_data;
-	unsigned int diff;
-	snd_pcm_uframes_t frames;
-
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		diff = sport_curr_offset_tx(sport);
-		frames = diff / (8*4); /* 32 bytes per frame */
-	} else {
-		diff = sport_curr_offset_rx(sport);
-		frames = diff / (8*4);
-	}
-	return frames;
-}
-
-static int bf5xx_pcm_open(struct snd_pcm_substream *substream)
-{
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-	struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai);
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct snd_dma_buffer *buf = &substream->dma_buffer;
-
-	int ret = 0;
-
-	snd_soc_set_runtime_hwparams(substream, &bf5xx_pcm_hardware);
-
-	ret = snd_pcm_hw_constraint_integer(runtime,
-		SNDRV_PCM_HW_PARAM_PERIODS);
-	if (ret < 0)
-		goto out;
-
-	if (sport_handle != NULL) {
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-			sport_handle->tx_buf = buf->area;
-		else
-			sport_handle->rx_buf = buf->area;
-
-		runtime->private_data = sport_handle;
-	} else {
-		pr_err("sport_handle is NULL\n");
-		ret = -ENODEV;
-	}
-out:
-	return ret;
-}
-
-static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel,
-	snd_pcm_uframes_t pos, void *buf, snd_pcm_uframes_t count)
-{
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct sport_device *sport = runtime->private_data;
-	struct bf5xx_tdm_port *tdm_port = sport->private_data;
-	unsigned int *src;
-	unsigned int *dst;
-	int i;
-
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		src = buf;
-		dst = (unsigned int *)substream->runtime->dma_area;
-
-		dst += pos * 8;
-		while (count--) {
-			for (i = 0; i < substream->runtime->channels; i++)
-				*(dst + tdm_port->tx_map[i]) = *src++;
-			dst += 8;
-		}
-	} else {
-		src = (unsigned int *)substream->runtime->dma_area;
-		dst = buf;
-
-		src += pos * 8;
-		while (count--) {
-			for (i = 0; i < substream->runtime->channels; i++)
-				*dst++ = *(src + tdm_port->rx_map[i]);
-			src += 8;
-		}
-	}
-
-	return 0;
-}
-
-static int bf5xx_pcm_silence(struct snd_pcm_substream *substream,
-	int channel, snd_pcm_uframes_t pos, snd_pcm_uframes_t count)
-{
-	unsigned char *buf = substream->runtime->dma_area;
-	buf += pos * 8 * 4;
-	memset(buf, '\0', count * 8 * 4);
-
-	return 0;
-}
-
-
-struct snd_pcm_ops bf5xx_pcm_tdm_ops = {
-	.open           = bf5xx_pcm_open,
-	.ioctl          = snd_pcm_lib_ioctl,
-	.hw_params      = bf5xx_pcm_hw_params,
-	.hw_free        = bf5xx_pcm_hw_free,
-	.prepare        = bf5xx_pcm_prepare,
-	.trigger        = bf5xx_pcm_trigger,
-	.pointer        = bf5xx_pcm_pointer,
-	.copy           = bf5xx_pcm_copy,
-	.silence        = bf5xx_pcm_silence,
-};
-
-static int bf5xx_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 = bf5xx_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_coherent(pcm->card->dev, size * 4,
-		&buf->addr, GFP_KERNEL);
-	if (!buf->area) {
-		pr_err("Failed to allocate dma memory - Please increase uncached DMA memory region\n");
-		return -ENOMEM;
-	}
-	buf->bytes = size;
-
-	return 0;
-}
-
-static void bf5xx_pcm_free_dma_buffers(struct snd_pcm *pcm)
-{
-	struct snd_pcm_substream *substream;
-	struct snd_dma_buffer *buf;
-	int stream;
-
-	for (stream = 0; stream < 2; stream++) {
-		substream = pcm->streams[stream].substream;
-		if (!substream)
-			continue;
-
-		buf = &substream->dma_buffer;
-		if (!buf->area)
-			continue;
-		dma_free_coherent(NULL, buf->bytes, buf->area, 0);
-		buf->area = NULL;
-	}
-}
-
-static u64 bf5xx_pcm_dmamask = DMA_BIT_MASK(32);
-
-static int bf5xx_pcm_tdm_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 = &bf5xx_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 = bf5xx_pcm_preallocate_dma_buffer(pcm,
-			SNDRV_PCM_STREAM_PLAYBACK);
-		if (ret)
-			goto out;
-	}
-
-	if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
-		ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
-			SNDRV_PCM_STREAM_CAPTURE);
-		if (ret)
-			goto out;
-	}
-out:
-	return ret;
-}
-
-static struct snd_soc_platform_driver bf5xx_tdm_soc_platform = {
-	.ops        = &bf5xx_pcm_tdm_ops,
-	.pcm_new        = bf5xx_pcm_tdm_new,
-	.pcm_free       = bf5xx_pcm_free_dma_buffers,
-};
-
-static int bf5xx_soc_platform_probe(struct platform_device *pdev)
-{
-	return snd_soc_register_platform(&pdev->dev, &bf5xx_tdm_soc_platform);
-}
-
-static int bf5xx_soc_platform_remove(struct platform_device *pdev)
-{
-	snd_soc_unregister_platform(&pdev->dev);
-	return 0;
-}
-
-static struct platform_driver bfin_tdm_driver = {
-	.driver = {
-			.name = "bfin-tdm-pcm-audio",
-			.owner = THIS_MODULE,
-	},
-
-	.probe = bf5xx_soc_platform_probe,
-	.remove = bf5xx_soc_platform_remove,
-};
-
-module_platform_driver(bfin_tdm_driver);
-
-MODULE_AUTHOR("Barry Song");
-MODULE_DESCRIPTION("ADI Blackfin TDM PCM DMA module");
-MODULE_LICENSE("GPL");