1 files changed, 0 insertions, 480 deletions

diff --git a/sound/soc/blackfin/bf5xx-ac97-pcm.c b/sound/soc/blackfin/bf5xx-ac97-pcm.c
deleted file mode 100644
index 8c1d1983b8f9..000000000000
--- a/sound/soc/blackfin/bf5xx-ac97-pcm.c
+++ /dev/null
@@ -1,480 +0,0 @@
-/*
- * File:         sound/soc/blackfin/bf5xx-ac97-pcm.c
- * Author:       Cliff Cai <Cliff.Cai@analog.com>
- *
- * Created:      Tue June 06 2008
- * Description:  DMA Driver for AC97 sound chip
- *
- * Modified:
- *               Copyright 2008 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-ac97.h"
-#include "bf5xx-sport.h"
-
-static unsigned int ac97_chan_mask[] = {
-	SP_FL, /* Mono */
-	SP_STEREO, /* Stereo */
-	SP_2DOT1, /* 2.1*/
-	SP_QUAD,/*Quadraquic*/
-	SP_FL | SP_FR | SP_FC | SP_SL | SP_SR,/*5 channels */
-	SP_5DOT1, /* 5.1 */
-};
-
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-static void bf5xx_mmap_copy(struct snd_pcm_substream *substream,
-	 snd_pcm_uframes_t count)
-{
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct sport_device *sport = runtime->private_data;
-	unsigned int chan_mask = ac97_chan_mask[runtime->channels - 1];
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		bf5xx_pcm_to_ac97((struct ac97_frame *)sport->tx_dma_buf +
-		sport->tx_pos, (__u16 *)runtime->dma_area + sport->tx_pos *
-		runtime->channels, count, chan_mask);
-		sport->tx_pos += runtime->period_size;
-		if (sport->tx_pos >= runtime->buffer_size)
-			sport->tx_pos %= runtime->buffer_size;
-		sport->tx_delay_pos = sport->tx_pos;
-	} else {
-		bf5xx_ac97_to_pcm((struct ac97_frame *)sport->rx_dma_buf +
-		sport->rx_pos, (__u16 *)runtime->dma_area + sport->rx_pos *
-		runtime->channels, count);
-		sport->rx_pos += runtime->period_size;
-		if (sport->rx_pos >= runtime->buffer_size)
-			sport->rx_pos %= runtime->buffer_size;
-	}
-}
-#endif
-
-static void bf5xx_dma_irq(void *data)
-{
-	struct snd_pcm_substream *pcm = data;
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-	struct snd_pcm_runtime *runtime = pcm->runtime;
-	struct sport_device *sport = runtime->private_data;
-	bf5xx_mmap_copy(pcm, runtime->period_size);
-	if (pcm->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		if (sport->once == 0) {
-			snd_pcm_period_elapsed(pcm);
-			bf5xx_mmap_copy(pcm, runtime->period_size);
-			sport->once = 1;
-		}
-	}
-#endif
-	snd_pcm_period_elapsed(pcm);
-}
-
-/* The memory size for pure pcm data is 128*1024 = 0x20000 bytes.
- * The total rx/tx buffer is for ac97 frame to hold all pcm data
- * is  0x20000 * sizeof(struct ac97_frame) / 4.
- */
-static const struct snd_pcm_hardware bf5xx_pcm_hardware = {
-	.info			= SNDRV_PCM_INFO_INTERLEAVED |
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-				   SNDRV_PCM_INFO_MMAP |
-				   SNDRV_PCM_INFO_MMAP_VALID |
-#endif
-				   SNDRV_PCM_INFO_BLOCK_TRANSFER,
-
-	.period_bytes_min	= 32,
-	.period_bytes_max	= 0x10000,
-	.periods_min		= 1,
-	.periods_max		= PAGE_SIZE/32,
-	.buffer_bytes_max	= 0x20000, /* 128 kbytes */
-	.fifo_size		= 16,
-};
-
-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
-			* sizeof(struct ac97_frame) / 4;
-
-	snd_pcm_lib_malloc_pages(substream, size);
-
-	return 0;
-}
-
-static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream)
-{
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct sport_device *sport = runtime->private_data;
-
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		sport->once = 0;
-		if (runtime->dma_area)
-			memset(runtime->dma_area, 0, runtime->buffer_size);
-		memset(sport->tx_dma_buf, 0, runtime->buffer_size *
-			sizeof(struct ac97_frame));
-	} else
-		memset(sport->rx_dma_buf, 0, runtime->buffer_size *
-			sizeof(struct ac97_frame));
-#endif
-	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;
-
-	/* An intermediate buffer is introduced for implementing mmap for
-	 * SPORT working in TMD mode(include AC97).
-	 */
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		sport_set_tx_callback(sport, bf5xx_dma_irq, substream);
-		sport_config_tx_dma(sport, sport->tx_dma_buf, runtime->periods,
-			runtime->period_size * sizeof(struct ac97_frame));
-	} else {
-		sport_set_rx_callback(sport, bf5xx_dma_irq, substream);
-		sport_config_rx_dma(sport, sport->rx_dma_buf, runtime->periods,
-			runtime->period_size * sizeof(struct ac97_frame));
-	}
-#else
-	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,
-			runtime->period_size * sizeof(struct ac97_frame));
-	} else {
-		sport_set_rx_callback(sport, bf5xx_dma_irq, substream);
-		sport_config_rx_dma(sport, runtime->dma_area, runtime->periods,
-			runtime->period_size * sizeof(struct ac97_frame));
-	}
-#endif
-	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;
-
-	pr_debug("%s enter\n", __func__);
-	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_START:
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-			bf5xx_mmap_copy(substream, runtime->period_size);
-			sport->tx_delay_pos = 0;
-#endif
-			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) {
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-			sport->tx_pos = 0;
-#endif
-			sport_tx_stop(sport);
-		} else {
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-			sport->rx_pos = 0;
-#endif
-			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 curr;
-
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		curr = sport->tx_delay_pos;
-	else
-		curr = sport->rx_pos;
-#else
-
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		curr = sport_curr_offset_tx(sport) / sizeof(struct ac97_frame);
-	else
-		curr = sport_curr_offset_rx(sport) / sizeof(struct ac97_frame);
-
-#endif
-	return curr;
-}
-
-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;
-	int ret;
-
-	pr_debug("%s enter\n", __func__);
-	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)
-		runtime->private_data = sport_handle;
-	else {
-		pr_err("sport_handle is NULL\n");
-		return -1;
-	}
-	return 0;
-
- out:
-	return ret;
-}
-
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-static int bf5xx_pcm_mmap(struct snd_pcm_substream *substream,
-	struct vm_area_struct *vma)
-{
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	size_t size = vma->vm_end - vma->vm_start;
-	vma->vm_start = (unsigned long)runtime->dma_area;
-	vma->vm_end = vma->vm_start + size;
-	vma->vm_flags |=  VM_SHARED;
-	return 0 ;
-}
-#else
-static	int bf5xx_pcm_copy(struct snd_pcm_substream *substream,
-			   int channel, unsigned long pos,
-			   void *buf, unsigned long count)
-{
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	unsigned int chan_mask = ac97_chan_mask[runtime->channels - 1];
-	struct ac97_frame *dst;
-
-	pr_debug("%s copy pos:0x%lx count:0x%lx\n",
-			substream->stream ? "Capture" : "Playback", pos, count);
-	dst = (struct ac97_frame *)runtime->dma_area +
-		bytes_to_frames(runtime, pos);
-	count = bytes_to_frames(runtime, count);
-
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		bf5xx_pcm_to_ac97(dst, buf, count, chan_mask);
-	else
-		bf5xx_ac97_to_pcm(dst, buf, count);
-	return 0;
-}
-
-static	int bf5xx_pcm_copy_user(struct snd_pcm_substream *substream,
-				int channel, unsigned long pos,
-				void __user *buf, unsigned long count)
-{
-	return bf5xx_pcm_copy(substream, channel, pos, (void *)buf, count);
-}
-#endif
-
-static const struct snd_pcm_ops bf5xx_pcm_ac97_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,
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-	.mmap		= bf5xx_pcm_mmap,
-#else
-	.copy_user	= bf5xx_pcm_copy_user,
-	.copy_kernel	= bf5xx_pcm_copy,
-#endif
-};
-
-static int bf5xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
-{
-	struct snd_soc_pcm_runtime *rtd = pcm->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_substream *substream = pcm->streams[stream].substream;
-	struct snd_dma_buffer *buf = &substream->dma_buffer;
-	size_t size = bf5xx_pcm_hardware.buffer_bytes_max
-			* sizeof(struct ac97_frame) / 4;
-
-	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,
-			&buf->addr, GFP_KERNEL);
-	if (!buf->area) {
-		pr_err("Failed to allocate dma memory\n");
-		pr_err("Please increase uncached DMA memory region\n");
-		return -ENOMEM;
-	}
-	buf->bytes = size;
-
-	pr_debug("%s, area:%p, size:0x%08lx\n", __func__,
-			buf->area, buf->bytes);
-
-	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
-		sport_handle->tx_buf = buf->area;
-	else
-		sport_handle->rx_buf = buf->area;
-
-/*
- * Need to allocate local buffer when enable
- * MMAP for SPORT working in TMD mode (include AC97).
- */
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		if (!sport_handle->tx_dma_buf) {
-			sport_handle->tx_dma_buf = dma_alloc_coherent(NULL, \
-				size, &sport_handle->tx_dma_phy, GFP_KERNEL);
-			if (!sport_handle->tx_dma_buf) {
-				pr_err("Failed to allocate memory for tx dma buf - Please increase uncached DMA memory region\n");
-				return -ENOMEM;
-			} else
-				memset(sport_handle->tx_dma_buf, 0, size);
-		} else
-			memset(sport_handle->tx_dma_buf, 0, size);
-	} else {
-		if (!sport_handle->rx_dma_buf) {
-			sport_handle->rx_dma_buf = dma_alloc_coherent(NULL, \
-				size, &sport_handle->rx_dma_phy, GFP_KERNEL);
-			if (!sport_handle->rx_dma_buf) {
-				pr_err("Failed to allocate memory for rx dma buf - Please increase uncached DMA memory region\n");
-				return -ENOMEM;
-			} else
-				memset(sport_handle->rx_dma_buf, 0, size);
-		} else
-			memset(sport_handle->rx_dma_buf, 0, size);
-	}
-#endif
-	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;
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-	struct snd_soc_pcm_runtime *rtd = pcm->private_data;
-	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-	struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai);
-	size_t size = bf5xx_pcm_hardware.buffer_bytes_max *
-		sizeof(struct ac97_frame) / 4;
-#endif
-	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;
-#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		if (sport_handle->tx_dma_buf)
-			dma_free_coherent(NULL, size, \
-				sport_handle->tx_dma_buf, 0);
-		sport_handle->tx_dma_buf = NULL;
-	} else {
-
-		if (sport_handle->rx_dma_buf)
-			dma_free_coherent(NULL, size, \
-				sport_handle->rx_dma_buf, 0);
-		sport_handle->rx_dma_buf = NULL;
-	}
-#endif
-	}
-}
-
-static int bf5xx_pcm_ac97_new(struct snd_soc_pcm_runtime *rtd)
-{
-	struct snd_card *card = rtd->card->snd_card;
-	struct snd_pcm *pcm = rtd->pcm;
-	int ret;
-
-	pr_debug("%s enter\n", __func__);
-	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
-	if (ret)
-		return ret;
-
-	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_ac97_soc_platform = {
-	.ops			= &bf5xx_pcm_ac97_ops,
-	.pcm_new	= bf5xx_pcm_ac97_new,
-	.pcm_free	= bf5xx_pcm_free_dma_buffers,
-};
-
-static int bf5xx_soc_platform_probe(struct platform_device *pdev)
-{
-	return devm_snd_soc_register_platform(&pdev->dev,
-					      &bf5xx_ac97_soc_platform);
-}
-
-static struct platform_driver bf5xx_pcm_driver = {
-	.driver = {
-			.name = "bfin-ac97-pcm-audio",
-	},
-
-	.probe = bf5xx_soc_platform_probe,
-};
-
-module_platform_driver(bf5xx_pcm_driver);
-
-MODULE_AUTHOR("Cliff Cai");
-MODULE_DESCRIPTION("ADI Blackfin AC97 PCM DMA module");
-MODULE_LICENSE("GPL");