+++ /dev/null
---- a/sound/soc/Kconfig
-+++ b/sound/soc/Kconfig
-@@ -54,6 +54,7 @@ source "sound/soc/spear/Kconfig"
- source "sound/soc/tegra/Kconfig"
- source "sound/soc/txx9/Kconfig"
- source "sound/soc/ux500/Kconfig"
-+source "sound/soc/gw-avila/Kconfig"
-
- # Supported codecs
- source "sound/soc/codecs/Kconfig"
---- a/sound/soc/Makefile
-+++ b/sound/soc/Makefile
-@@ -31,3 +31,4 @@ obj-$(CONFIG_SND_SOC) += spear/
- obj-$(CONFIG_SND_SOC) += tegra/
- obj-$(CONFIG_SND_SOC) += txx9/
- obj-$(CONFIG_SND_SOC) += ux500/
-+obj-$(CONFIG_SND_SOC) += gw-avila/
---- /dev/null
-+++ b/sound/soc/gw-avila/Kconfig
-@@ -0,0 +1,17 @@
-+config SND_GW_AVILA_SOC_PCM
-+ tristate
-+
-+config SND_GW_AVILA_SOC_HSS
-+ tristate
-+
-+config SND_GW_AVILA_SOC
-+ tristate "SoC Audio for the Gateworks AVILA Family"
-+ depends on ARCH_IXP4XX && SND_SOC
-+ select SND_GW_AVILA_SOC_PCM
-+ select SND_GW_AVILA_SOC_HSS
-+ select SND_SOC_TLV320AIC3X
-+ help
-+ Say Y or M if you want to add support for codecs attached to
-+ the Gateworks HSS interface. You will also need
-+ to select the audio interfaces to support below.
-+
---- /dev/null
-+++ b/sound/soc/gw-avila/Makefile
-@@ -0,0 +1,8 @@
-+# Gateworks Avila HSS Platform Support
-+snd-soc-gw-avila-objs := gw-avila.o ixp4xx_hss.o
-+snd-soc-gw-avila-pcm-objs := gw-avila-pcm.o
-+snd-soc-gw-avila-hss-objs := gw-avila-hss.o
-+
-+obj-$(CONFIG_SND_GW_AVILA_SOC) += snd-soc-gw-avila.o
-+obj-$(CONFIG_SND_GW_AVILA_SOC_PCM) += snd-soc-gw-avila-pcm.o
-+obj-$(CONFIG_SND_GW_AVILA_SOC_HSS) += snd-soc-gw-avila-hss.o
---- /dev/null
-+++ b/sound/soc/gw-avila/gw-avila-hss.c
-@@ -0,0 +1,103 @@
-+/*
-+ * gw-avila-hss.c -- HSS Audio Support for Gateworks Avila
-+ *
-+ * Author: Chris Lang <clang@gateworks.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
-+ * published by the Free Software Foundation.
-+ */
-+
-+#include <linux/init.h>
-+#include <linux/module.h>
-+#include <linux/platform_device.h>
-+#include <linux/interrupt.h>
-+#include <linux/wait.h>
-+#include <linux/delay.h>
-+
-+#include <sound/core.h>
-+#include <sound/pcm.h>
-+#include <sound/ac97_codec.h>
-+#include <sound/initval.h>
-+#include <sound/soc.h>
-+
-+#include <asm/irq.h>
-+#include <linux/mutex.h>
-+#include <linux/gpio.h>
-+
-+#include "ixp4xx_hss.h"
-+#include "gw-avila-hss.h"
-+
-+#define gw_avila_hss_suspend NULL
-+#define gw_avila_hss_resume NULL
-+
-+struct snd_soc_dai_driver gw_avila_hss_dai = {
-+ .playback = {
-+ .channels_min = 2,
-+ .channels_max = 2,
-+ .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |
-+ SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 |
-+ SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
-+ SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
-+ SNDRV_PCM_RATE_KNOT),
-+ .formats = SNDRV_PCM_FMTBIT_S16_LE, },
-+ .capture = {
-+ .channels_min = 2,
-+ .channels_max = 2,
-+ .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |
-+ SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 |
-+ SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
-+ SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
-+ SNDRV_PCM_RATE_KNOT),
-+ .formats = SNDRV_PCM_FMTBIT_S16_LE, },
-+};
-+
-+static const struct snd_soc_component_driver gw_avila_hss_component = {
-+ .name = "gw_avila_hss",
-+};
-+
-+static int gw_avila_hss_probe(struct platform_device *pdev)
-+{
-+ int port = (pdev->id < 2) ? 0 : 1;
-+ int channel = (pdev->id % 2);
-+
-+ hss_handle[pdev->id] = hss_init(port, channel);
-+ if (!hss_handle[pdev->id]) {
-+ return -ENODEV;
-+ }
-+
-+ return snd_soc_register_component(&pdev->dev, &gw_avila_hss_component,
-+ &gw_avila_hss_dai, 1);
-+}
-+
-+static int gw_avila_hss_remove(struct platform_device *pdev)
-+{
-+ snd_soc_unregister_component(&pdev->dev);
-+
-+ return 0;
-+}
-+
-+static struct platform_driver gw_avila_hss_driver = {
-+ .probe = gw_avila_hss_probe,
-+ .remove = gw_avila_hss_remove,
-+ .driver = {
-+ .name = "gw_avila_hss",
-+ .owner = THIS_MODULE,
-+ }
-+};
-+
-+static int __init gw_avila_hss_init(void)
-+{
-+ return platform_driver_register(&gw_avila_hss_driver);
-+}
-+module_init(gw_avila_hss_init);
-+
-+static void __exit gw_avila_hss_exit(void)
-+{
-+ platform_driver_unregister(&gw_avila_hss_driver);
-+}
-+module_exit(gw_avila_hss_exit);
-+
-+MODULE_AUTHOR("Chris Lang");
-+MODULE_DESCRIPTION("HSS Audio Driver for Gateworks Avila");
-+MODULE_LICENSE("GPL");
---- /dev/null
-+++ b/sound/soc/gw-avila/gw-avila-hss.h
-@@ -0,0 +1,12 @@
-+/*
-+ * Author: Chris Lang <clang@gateworks.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
-+ * published by the Free Software Foundation.
-+ */
-+
-+#ifndef _GW_AVILA_HSS_H
-+#define _GW_AVILA_HSS_H
-+
-+#endif
---- /dev/null
-+++ b/sound/soc/gw-avila/gw-avila-pcm.c
-@@ -0,0 +1,327 @@
-+/*
-+ * ALSA PCM interface for the TI DAVINCI processor
-+ *
-+ * Author: Chris Lang, <clang@gateworks.com>
-+ * Copyright: (C) 2009 Gateworks Corporation
-+ *
-+ * Based On: davinci-evm.c, Author: Vladimir Barinov, <vbarinov@ru.mvista.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
-+ * published by the Free Software Foundation.
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/init.h>
-+#include <linux/platform_device.h>
-+#include <linux/slab.h>
-+#include <linux/dma-mapping.h>
-+
-+#include <sound/core.h>
-+#include <sound/pcm.h>
-+#include <sound/pcm_params.h>
-+#include <sound/soc.h>
-+
-+#include <asm/dma.h>
-+
-+#include "gw-avila-pcm.h"
-+#include "gw-avila-hss.h"
-+#include "ixp4xx_hss.h"
-+
-+#define GW_AVILA_PCM_DEBUG 0
-+#if GW_AVILA_PCM_DEBUG
-+#define DPRINTK(x...) printk(KERN_DEBUG x)
-+#else
-+#define DPRINTK(x...)
-+#endif
-+
-+static struct snd_pcm_hardware gw_avila_pcm_hardware = {
-+ .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
-+ SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID),
-+/* SNDRV_PCM_INFO_PAUSE),*/
-+ .formats = (SNDRV_PCM_FMTBIT_S16_LE),
-+ .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |
-+ SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 |
-+ SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
-+ SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
-+ SNDRV_PCM_RATE_KNOT),
-+ .rate_min = 8000,
-+ .rate_max = 8000,
-+ .channels_min = 2,
-+ .channels_max = 2,
-+ .buffer_bytes_max = 64 * 1024, // All of the lines below may need to be changed
-+ .period_bytes_min = 128,
-+ .period_bytes_max = 4 * 1024,
-+ .periods_min = 16,
-+ .periods_max = 32,
-+ .fifo_size = 0,
-+};
-+
-+struct gw_avila_runtime_data {
-+ spinlock_t lock;
-+ int period; /* current DMA period */
-+ int master_lch; /* Master DMA channel */
-+ int slave_lch; /* Slave DMA channel */
-+ struct gw_avila_pcm_dma_params *params; /* DMA params */
-+};
-+
-+static void gw_avila_dma_irq(void *data)
-+{
-+ struct snd_pcm_substream *substream = data;
-+ snd_pcm_period_elapsed(substream);
-+}
-+
-+static int gw_avila_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
-+{
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+ struct hss_device *hdev = runtime->private_data;
-+ int ret = 0;
-+
-+ switch (cmd) {
-+ case SNDRV_PCM_TRIGGER_START:
-+ case SNDRV_PCM_TRIGGER_RESUME:
-+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-+ hss_tx_start(hdev);
-+ else
-+ hss_rx_start(hdev);
-+ break;
-+ case SNDRV_PCM_TRIGGER_STOP:
-+ case SNDRV_PCM_TRIGGER_SUSPEND:
-+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-+ hss_tx_stop(hdev);
-+ else
-+ hss_rx_stop(hdev);
-+ break;
-+ default:
-+ ret = -EINVAL;
-+ break;
-+ }
-+ return ret;
-+}
-+
-+static int gw_avila_pcm_prepare(struct snd_pcm_substream *substream)
-+{
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+ struct hss_device *hdev = runtime->private_data;
-+
-+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-+ hss_set_tx_callback(hdev, gw_avila_dma_irq, substream);
-+ hss_config_tx_dma(hdev, runtime->dma_area, runtime->buffer_size, runtime->period_size);
-+ } else {
-+ hss_set_rx_callback(hdev, gw_avila_dma_irq, substream);
-+ hss_config_rx_dma(hdev, runtime->dma_area, runtime->buffer_size, runtime->period_size);
-+ }
-+
-+ return 0;
-+}
-+
-+static snd_pcm_uframes_t
-+gw_avila_pcm_pointer(struct snd_pcm_substream *substream)
-+{
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+ struct hss_device *hdev = runtime->private_data;
-+
-+ unsigned int curr = 0;
-+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-+ curr = hss_curr_offset_tx(hdev);
-+ else
-+ curr = hss_curr_offset_rx(hdev);
-+ return curr;
-+}
-+
-+static int gw_avila_pcm_open(struct snd_pcm_substream *substream)
-+{
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
-+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-+
-+ snd_soc_set_runtime_hwparams(substream, &gw_avila_pcm_hardware);
-+
-+ if (hss_handle[cpu_dai->id] != NULL)
-+ runtime->private_data = hss_handle[cpu_dai->id];
-+ else {
-+ pr_err("hss_handle is NULL\n");
-+ return -1;
-+ }
-+
-+ hss_chan_open(hss_handle[cpu_dai->id]);
-+
-+ return 0;
-+}
-+
-+static int gw_avila_pcm_close(struct snd_pcm_substream *substream)
-+{
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+ struct hss_device *hdev = runtime->private_data;
-+
-+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-+ memset(hdev->tx_buf, 0, runtime->buffer_size);
-+ } else
-+ memset(hdev->rx_buf, 0, runtime->buffer_size);
-+
-+ hss_chan_close(hdev);
-+
-+ return 0;
-+}
-+
-+static int gw_avila_pcm_hw_params(struct snd_pcm_substream *substream,
-+ struct snd_pcm_hw_params *hw_params)
-+{
-+ return snd_pcm_lib_malloc_pages(substream,
-+ params_buffer_bytes(hw_params));
-+}
-+
-+static int gw_avila_pcm_hw_free(struct snd_pcm_substream *substream)
-+{
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+
-+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-+ memset(runtime->dma_area, 0, runtime->buffer_size);
-+
-+ return snd_pcm_lib_free_pages(substream);
-+}
-+
-+static int gw_avila_pcm_mmap(struct snd_pcm_substream *substream,
-+ struct vm_area_struct *vma)
-+{
-+ struct snd_pcm_runtime *runtime = substream->runtime;
-+
-+ return dma_mmap_writecombine(substream->pcm->card->dev, vma,
-+ runtime->dma_area,
-+ runtime->dma_addr,
-+ runtime->dma_bytes);
-+}
-+
-+struct snd_pcm_ops gw_avila_pcm_ops = {
-+ .open = gw_avila_pcm_open,
-+ .close = gw_avila_pcm_close,
-+ .ioctl = snd_pcm_lib_ioctl,
-+ .hw_params = gw_avila_pcm_hw_params,
-+ .hw_free = gw_avila_pcm_hw_free,
-+ .prepare = gw_avila_pcm_prepare,
-+ .trigger = gw_avila_pcm_trigger,
-+ .pointer = gw_avila_pcm_pointer,
-+ .mmap = gw_avila_pcm_mmap,
-+};
-+
-+static int gw_avila_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 = gw_avila_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,
-+ &buf->addr, GFP_KERNEL);
-+
-+ if (!buf->area) {
-+ return -ENOMEM;
-+ }
-+
-+ memset(buf->area, 0xff, size);
-+
-+ DPRINTK("preallocate_dma_buffer: area=%p, addr=%p, size=%d\n",
-+ (void *) buf->area, (void *) buf->addr, size);
-+
-+ buf->bytes = size;
-+
-+ return 0;
-+}
-+
-+static void gw_avila_pcm_free(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 gw_avila_pcm_dmamask = 0xFFFFFFFF;
-+
-+static int gw_avila_pcm_new(struct snd_soc_pcm_runtime *rtd)
-+{
-+ struct snd_card *card = rtd->card->snd_card;
-+ struct snd_pcm *pcm = rtd->pcm;
-+ struct snd_soc_dai *dai = rtd->codec_dai;
-+ int ret;
-+
-+ if (!card->dev->dma_mask)
-+ card->dev->dma_mask = &gw_avila_pcm_dmamask;
-+ if (!card->dev->coherent_dma_mask)
-+ card->dev->coherent_dma_mask = 0xFFFFFFFF;
-+
-+ if (dai->driver->playback.channels_min) {
-+ ret = gw_avila_pcm_preallocate_dma_buffer(pcm,
-+ SNDRV_PCM_STREAM_PLAYBACK);
-+ if (ret)
-+ return ret;
-+ }
-+
-+ if (dai->driver->capture.channels_min) {
-+ ret = gw_avila_pcm_preallocate_dma_buffer(pcm,
-+ SNDRV_PCM_STREAM_CAPTURE);
-+ if (ret)
-+ return ret;
-+ }
-+
-+ return 0;
-+}
-+
-+struct snd_soc_platform_driver gw_avila_soc_platform = {
-+ .ops = &gw_avila_pcm_ops,
-+ .pcm_new = gw_avila_pcm_new,
-+ .pcm_free = gw_avila_pcm_free,
-+};
-+
-+static int gw_avila_pcm_platform_probe(struct platform_device *pdev)
-+{
-+ return snd_soc_register_platform(&pdev->dev, &gw_avila_soc_platform);
-+}
-+
-+static int gw_avila_pcm_platform_remove(struct platform_device *pdev)
-+{
-+ snd_soc_unregister_platform(&pdev->dev);
-+ return 0;
-+}
-+
-+static struct platform_driver gw_avila_pcm_driver = {
-+ .driver = {
-+ .name = "gw_avila-audio",
-+ .owner = THIS_MODULE,
-+ },
-+ .probe = gw_avila_pcm_platform_probe,
-+ .remove = gw_avila_pcm_platform_remove,
-+};
-+
-+static int __init gw_avila_soc_platform_init(void)
-+{
-+ return platform_driver_register(&gw_avila_pcm_driver);
-+}
-+module_init(gw_avila_soc_platform_init);
-+
-+static void __exit gw_avila_soc_platform_exit(void)
-+{
-+ platform_driver_unregister(&gw_avila_pcm_driver);
-+}
-+module_exit(gw_avila_soc_platform_exit);
-+
-+MODULE_AUTHOR("Chris Lang");
-+MODULE_DESCRIPTION("Gateworks Avila PCM DMA module");
-+MODULE_LICENSE("GPL");
---- /dev/null
-+++ b/sound/soc/gw-avila/gw-avila-pcm.h
-@@ -0,0 +1,32 @@
-+/*
-+ * ALSA PCM interface for the Gateworks Avila platform
-+ *
-+ * Author: Chris Lang, <clang@gateworks.com>
-+ * Copyright: (C) 2009 Gateworks Corporation
-+ *
-+ * Based On: davinci-evm.c, Author: Vladimir Barinov, <vbarinov@ru.mvista.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
-+ * published by the Free Software Foundation.
-+ */
-+
-+#ifndef _GW_AVILA_PCM_H
-+#define _GW_AVILA_PCM_H
-+
-+#if 0
-+struct gw_avila_pcm_dma_params {
-+ char *name; /* stream identifier */
-+ int channel; /* sync dma channel ID */
-+ dma_addr_t dma_addr; /* device physical address for DMA */
-+ unsigned int data_type; /* xfer data type */
-+};
-+
-+struct gw_avila_snd_platform_data {
-+ int tx_dma_ch; // XXX Do we need this?
-+ int rx_dma_ch; // XXX Do we need this
-+};
-+extern struct snd_soc_platform gw_avila_soc_platform[];
-+#endif
-+
-+#endif
---- /dev/null
-+++ b/sound/soc/gw-avila/gw-avila.c
-@@ -0,0 +1,244 @@
-+/*
-+ * File: sound/soc/gw-avila/gw_avila.c
-+ * Author: Chris Lang <clang@gateworks.com>
-+ *
-+ * Created: Tue June 06 2008
-+ * Description: Board driver for Gateworks Avila
-+ *
-+ * Modified:
-+ * Copyright 2009 Gateworks Corporation
-+ *
-+ * Bugs: What Bugs?
-+ *
-+ * 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/moduleparam.h>
-+#include <linux/device.h>
-+#include <asm/dma.h>
-+#include <linux/platform_device.h>
-+#include <sound/core.h>
-+#include <sound/pcm.h>
-+#include <sound/soc.h>
-+#include <linux/slab.h>
-+#include <linux/gpio.h>
-+
-+#include "ixp4xx_hss.h"
-+#include "gw-avila-hss.h"
-+#include "gw-avila-pcm.h"
-+
-+#define CODEC_FREQ 33333000
-+
-+static int gw_avila_board_startup(struct snd_pcm_substream *substream)
-+{
-+ pr_debug("%s enter\n", __func__);
-+ return 0;
-+}
-+
-+static int gw_avila_hw_params(struct snd_pcm_substream *substream,
-+ struct snd_pcm_hw_params *params)
-+{
-+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
-+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
-+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-+
-+ int ret = 0;
-+
-+ /* set codec DAI configuration */
-+ if (cpu_dai->id % 2) {
-+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBS_CFS);
-+ snd_soc_dai_set_tdm_slot(codec_dai, 0, 0, 1, 32);
-+ } else {
-+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBM_CFM);
-+ snd_soc_dai_set_tdm_slot(codec_dai, 0, 0, 0, 32);
-+ }
-+
-+ if (ret < 0)
-+ return ret;
-+
-+ /* set the codec system clock */
-+ ret = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_FREQ, SND_SOC_CLOCK_OUT);
-+ if (ret < 0)
-+ return ret;
-+
-+ return 0;
-+}
-+
-+static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
-+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
-+ SND_SOC_DAPM_LINE("Line Out", NULL),
-+ SND_SOC_DAPM_LINE("Line In", NULL),
-+};
-+
-+static const struct snd_soc_dapm_route audio_map[] = {
-+ {"Headphone Jack", NULL, "HPLOUT"},
-+ {"Headphone Jack", NULL, "HPROUT"},
-+
-+ /* Line Out connected to LLOUT, RLOUT */
-+ {"Line Out", NULL, "LLOUT"},
-+ {"Line Out", NULL, "RLOUT"},
-+
-+ /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
-+ {"LINE1L", NULL, "Line In"},
-+ {"LINE1R", NULL, "Line In"},
-+};
-+
-+/* Logic for a aic3x as connected on a davinci-evm */
-+static int avila_aic3x_init(struct snd_soc_pcm_runtime *rtd)
-+{
-+ struct snd_soc_codec *codec = rtd->codec;
-+ struct snd_soc_dapm_context *dapm = &codec->dapm;
-+
-+ /* Add davinci-evm specific widgets */
-+ snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
-+ ARRAY_SIZE(aic3x_dapm_widgets));
-+
-+ /* Set up davinci-evm specific audio path audio_map */
-+ snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
-+
-+ /* not connected */
-+ snd_soc_dapm_disable_pin(dapm, "MONO_LOUT");
-+ //snd_soc_dapm_disable_pin(dapm, "HPLCOM");
-+ //snd_soc_dapm_disable_pin(dapm, "HPRCOM");
-+ snd_soc_dapm_disable_pin(dapm, "MIC3L");
-+ snd_soc_dapm_disable_pin(dapm, "MIC3R");
-+ snd_soc_dapm_disable_pin(dapm, "LINE2L");
-+ snd_soc_dapm_disable_pin(dapm, "LINE2R");
-+
-+ /* always connected */
-+ snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
-+ snd_soc_dapm_enable_pin(dapm, "Line Out");
-+ snd_soc_dapm_enable_pin(dapm, "Line In");
-+
-+ snd_soc_dapm_sync(dapm);
-+
-+ return 0;
-+}
-+
-+static struct snd_soc_ops gw_avila_board_ops = {
-+ .startup = gw_avila_board_startup,
-+ .hw_params = gw_avila_hw_params,
-+};
-+
-+static struct snd_soc_dai_link gw_avila_board_dai[] = {
-+ {
-+ .name = "HSS-0",
-+ .stream_name = "HSS-0",
-+ .cpu_dai_name = "gw_avila_hss.0",
-+ .codec_dai_name = "tlv320aic3x-hifi",
-+ .codec_name = "tlv320aic3x-codec.0-001b",
-+ .platform_name = "gw_avila-audio.0",
-+ .init = avila_aic3x_init,
-+ .ops = &gw_avila_board_ops,
-+ },{
-+ .name = "HSS-1",
-+ .stream_name = "HSS-1",
-+ .cpu_dai_name = "gw_avila_hss.1",
-+ .codec_dai_name = "tlv320aic3x-hifi",
-+ .codec_name = "tlv320aic3x-codec.0-001a",
-+ .platform_name = "gw_avila-audio.1",
-+ .init = avila_aic3x_init,
-+ .ops = &gw_avila_board_ops,
-+ },{
-+ .name = "HSS-2",
-+ .stream_name = "HSS-2",
-+ .cpu_dai_name = "gw_avila_hss.2",
-+ .codec_dai_name = "tlv320aic3x-hifi",
-+ .codec_name = "tlv320aic3x-codec.0-0019",
-+ .platform_name = "gw_avila-audio.2",
-+ .init = avila_aic3x_init,
-+ .ops = &gw_avila_board_ops,
-+ },{
-+ .name = "HSS-3",
-+ .stream_name = "HSS-3",
-+ .cpu_dai_name = "gw_avila_hss.3",
-+ .codec_dai_name = "tlv320aic3x-hifi",
-+ .codec_name = "tlv320aic3x-codec.0-0018",
-+ .platform_name = "gw_avila-audio.3",
-+ .init = avila_aic3x_init,
-+ .ops = &gw_avila_board_ops,
-+ },
-+};
-+
-+static struct snd_soc_card gw_avila_board[] = {
-+ {
-+ .name = "gw_avila-board.0",
-+ .owner = THIS_MODULE,
-+ .dai_link = &gw_avila_board_dai[0],
-+ .num_links = 1,
-+ },{
-+ .name = "gw_avila-board.1",
-+ .owner = THIS_MODULE,
-+ .dai_link = &gw_avila_board_dai[1],
-+ .num_links = 1,
-+ },{
-+ .name = "gw_avila-board.2",
-+ .owner = THIS_MODULE,
-+ .dai_link = &gw_avila_board_dai[2],
-+ .num_links = 1,
-+ },{
-+ .name = "gw_avila-board.3",
-+ .owner = THIS_MODULE,
-+ .dai_link = &gw_avila_board_dai[3],
-+ .num_links = 1,
-+ }
-+};
-+
-+static struct platform_device *gw_avila_board_snd_device[4];
-+
-+static int __init gw_avila_board_init(void)
-+{
-+ int ret;
-+ struct port *port;
-+ int i;
-+
-+ if ((hss_port[0] = kzalloc(sizeof(*port), GFP_KERNEL)) == NULL)
-+ return -ENOMEM;
-+
-+ if ((hss_port[1] = kzalloc(sizeof(*port), GFP_KERNEL)) == NULL)
-+ return -ENOMEM;
-+
-+ for (i = 0; i < 4; i++) {
-+ gw_avila_board_snd_device[i] = platform_device_alloc("soc-audio", i);
-+ if (!gw_avila_board_snd_device[i]) {
-+ return -ENOMEM;
-+ }
-+
-+ platform_set_drvdata(gw_avila_board_snd_device[i], &gw_avila_board[i]);
-+ ret = platform_device_add(gw_avila_board_snd_device[i]);
-+
-+ if (ret) {
-+ platform_device_put(gw_avila_board_snd_device[i]);
-+ }
-+ }
-+ return ret;
-+}
-+
-+static void __exit gw_avila_board_exit(void)
-+{
-+ int i;
-+ for (i = 0; i < 4; i++)
-+ platform_device_unregister(gw_avila_board_snd_device[i]);
-+}
-+
-+module_init(gw_avila_board_init);
-+module_exit(gw_avila_board_exit);
-+
-+/* Module information */
-+MODULE_AUTHOR("Chris Lang");
-+MODULE_DESCRIPTION("ALSA SoC HSS Audio gw_avila board");
-+MODULE_LICENSE("GPL");
---- /dev/null
-+++ b/sound/soc/gw-avila/ixp4xx_hss.c
-@@ -0,0 +1,902 @@
-+/*
-+ * Intel IXP4xx HSS (synchronous serial port) driver for Linux
-+ *
-+ * Copyright (C) 2009 Chris Lang <clang@gateworks.com>
-+ *
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms of version 2 of the GNU General Public License
-+ * as published by the Free Software Foundation.
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/bitops.h>
-+#include <linux/cdev.h>
-+#include <linux/dma-mapping.h>
-+#include <linux/dmapool.h>
-+#include <linux/fs.h>
-+#include <linux/io.h>
-+#include <linux/kernel.h>
-+#include <linux/platform_device.h>
-+#include <linux/poll.h>
-+#include <linux/slab.h>
-+#include <linux/delay.h>
-+
-+#include <mach/npe.h>
-+#include <mach/qmgr.h>
-+
-+#include "ixp4xx_hss.h"
-+
-+/*****************************************************************************
-+ * global variables
-+ ****************************************************************************/
-+
-+void hss_chan_read(unsigned long data);
-+static char lock_init = 0;
-+static spinlock_t npe_lock;
-+static struct npe *npe;
-+
-+static const struct {
-+ int tx, txdone, rx, rxfree, chan;
-+}queue_ids[2] = {{HSS0_PKT_TX0_QUEUE, HSS0_PKT_TXDONE_QUEUE, HSS0_PKT_RX_QUEUE,
-+ HSS0_PKT_RXFREE0_QUEUE, HSS0_CHL_RXTRIG_QUEUE},
-+ {HSS1_PKT_TX0_QUEUE, HSS1_PKT_TXDONE_QUEUE, HSS1_PKT_RX_QUEUE,
-+ HSS1_PKT_RXFREE0_QUEUE, HSS1_CHL_RXTRIG_QUEUE},
-+};
-+
-+struct port *hss_port[2];
-+struct hss_device *hss_handle[32];
-+EXPORT_SYMBOL(hss_handle);
-+
-+/*****************************************************************************
-+ * utility functions
-+ ****************************************************************************/
-+
-+#ifndef __ARMEB__
-+static inline void memcpy_swab32(u32 *dest, u32 *src, int cnt)
-+{
-+ int i;
-+ for (i = 0; i < cnt; i++)
-+ dest[i] = swab32(src[i]);
-+}
-+#endif
-+
-+static inline unsigned int sub_offset(unsigned int a, unsigned int b,
-+ unsigned int modulo)
-+{
-+ return (modulo /* make sure the result >= 0 */ + a - b) % modulo;
-+}
-+
-+/*****************************************************************************
-+ * HSS access
-+ ****************************************************************************/
-+
-+static void hss_config_load(struct port *port)
-+{
-+ struct msg msg;
-+
-+ do {
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = PORT_CONFIG_LOAD;
-+ msg.hss_port = port->id;
-+ if (npe_send_message(npe, &msg, "HSS_LOAD_CONFIG"))
-+ break;
-+ if (npe_recv_message(npe, &msg, "HSS_LOAD_CONFIG"))
-+ break;
-+
-+ /* HSS_LOAD_CONFIG for port #1 returns port_id = #4 */
-+ if (msg.cmd != PORT_CONFIG_LOAD || msg.data32)
-+ break;
-+
-+ /* HDLC may stop working without this */
-+ npe_recv_message(npe, &msg, "FLUSH_IT");
-+ return;
-+ } while (0);
-+
-+ printk(KERN_CRIT "HSS-%i: unable to reload HSS configuration\n",
-+ port->id);
-+ BUG();
-+}
-+
-+static void hss_config_set_pcr(struct port *port)
-+{
-+ struct msg msg;
-+
-+ do {
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = PORT_CONFIG_WRITE;
-+ msg.hss_port = port->id;
-+ msg.index = HSS_CONFIG_TX_PCR;
-+#if 0
-+ msg.data32 = PCR_FRM_SYNC_RISINGEDGE | PCR_MSB_ENDIAN |
-+ PCR_TX_DATA_ENABLE | PCR_TX_UNASS_HIGH_IMP | PCR_TX_V56K_HIGH_IMP | PCR_TX_FB_HIGH_IMP;
-+#else
-+ msg.data32 = PCR_FRM_SYNC_RISINGEDGE | PCR_MSB_ENDIAN |
-+ PCR_TX_DATA_ENABLE | PCR_TX_FB_HIGH_IMP | PCR_DCLK_EDGE_RISING;
-+#endif
-+ if (port->frame_size % 8 == 0)
-+ msg.data32 |= PCR_SOF_NO_FBIT;
-+
-+ if (npe_send_message(npe, &msg, "HSS_SET_TX_PCR"))
-+ break;
-+
-+ msg.index = HSS_CONFIG_RX_PCR;
-+ msg.data32 &= ~ (PCR_DCLK_EDGE_RISING | PCR_FCLK_EDGE_RISING | PCR_TX_DATA_ENABLE);
-+
-+ if (npe_send_message(npe, &msg, "HSS_SET_RX_PCR"))
-+ break;
-+ return;
-+ } while (0);
-+
-+ printk(KERN_CRIT "HSS-%i: unable to set HSS PCR registers\n", port->id);
-+ BUG();
-+}
-+
-+static void hss_config_set_core(struct port *port)
-+{
-+ struct msg msg;
-+
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = PORT_CONFIG_WRITE;
-+ msg.hss_port = port->id;
-+ msg.index = HSS_CONFIG_CORE_CR;
-+#if 0
-+ msg.data32 = 0 | CCR_LOOPBACK |
-+ (port->id ? CCR_SECOND_HSS : 0);
-+#else
-+ msg.data32 = 0 |
-+ (port->id ? CCR_SECOND_HSS : 0);
-+#endif
-+ if (npe_send_message(npe, &msg, "HSS_SET_CORE_CR")) {
-+ printk(KERN_CRIT "HSS-%i: unable to set HSS core control"
-+ " register\n", port->id);
-+ BUG();
-+ }
-+}
-+
-+static void hss_config_set_line(struct port *port)
-+{
-+ struct msg msg;
-+
-+ hss_config_set_pcr(port);
-+ hss_config_set_core(port);
-+
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = PORT_CONFIG_WRITE;
-+ msg.hss_port = port->id;
-+ msg.index = HSS_CONFIG_CLOCK_CR;
-+ msg.data32 = CLK42X_SPEED_8192KHZ /* FIXME */;
-+ if (npe_send_message(npe, &msg, "HSS_SET_CLOCK_CR")) {
-+ printk(KERN_CRIT "HSS-%i: unable to set HSS clock control"
-+ " register\n", port->id);
-+ BUG();
-+ }
-+}
-+
-+static void hss_config_set_rx_frame(struct port *port)
-+{
-+ struct msg msg;
-+
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = PORT_CONFIG_WRITE;
-+ msg.hss_port = port->id;
-+ msg.index = HSS_CONFIG_RX_FCR;
-+ msg.data16a = port->frame_sync_offset;
-+ msg.data16b = port->frame_size - 1;
-+ if (npe_send_message(npe, &msg, "HSS_SET_RX_FCR")) {
-+ printk(KERN_CRIT "HSS-%i: unable to set HSS RX frame size"
-+ " and offset\n", port->id);
-+ BUG();
-+ }
-+}
-+
-+static void hss_config_set_frame(struct port *port)
-+{
-+ struct msg msg;
-+
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = PORT_CONFIG_WRITE;
-+ msg.hss_port = port->id;
-+ msg.index = HSS_CONFIG_TX_FCR;
-+ msg.data16a = TX_FRAME_SYNC_OFFSET;
-+ msg.data16b = port->frame_size - 1;
-+ if (npe_send_message(npe, &msg, "HSS_SET_TX_FCR")) {
-+ printk(KERN_CRIT "HSS-%i: unable to set HSS TX frame size"
-+ " and offset\n", port->id);
-+ BUG();
-+ }
-+ hss_config_set_rx_frame(port);
-+}
-+
-+static void hss_config_set_lut(struct port *port)
-+{
-+ struct msg msg;
-+ int chan_count = 32;
-+
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = PORT_CONFIG_WRITE;
-+ msg.hss_port = port->id;
-+
-+ msg.index = HSS_CONFIG_TX_LUT;
-+ msg.data32 = 0xffffffff;
-+ npe_send_message(npe, &msg, "HSS_SET_TX_LUT");
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_TX_LUT");
-+ msg.data32 = 0x0;
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_TX_LUT");
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_TX_LUT");
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_TX_LUT");
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_TX_LUT");
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_TX_LUT");
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_TX_LUT");
-+
-+ msg.index = HSS_CONFIG_RX_LUT;
-+ msg.data32 = 0xffffffff;
-+ npe_send_message(npe, &msg, "HSS_SET_RX_LUT");
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_RX_LUT");
-+ msg.data32 = 0x0;
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_RX_LUT");
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_RX_LUT");
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_RX_LUT");
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_RX_LUT");
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_RX_LUT");
-+ msg.index += 4;
-+ npe_send_message(npe, &msg, "HSS_SET_RX_LUT");
-+
-+ hss_config_set_frame(port);
-+
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = CHAN_NUM_CHANS_WRITE;
-+ msg.hss_port = port->id;
-+ msg.data8a = chan_count;
-+ if (npe_send_message(npe, &msg, "CHAN_NUM_CHANS_WRITE")) {
-+ printk(KERN_CRIT "HSS-%i: unable to set HSS channel count\n",
-+ port->id);
-+ BUG();
-+ }
-+}
-+
-+static u32 hss_config_get_status(struct port *port)
-+{
-+ struct msg msg;
-+
-+ do {
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = PORT_ERROR_READ;
-+ msg.hss_port = port->id;
-+ if (npe_send_message(npe, &msg, "PORT_ERROR_READ"))
-+ break;
-+ if (npe_recv_message(npe, &msg, "PORT_ERROR_READ"))
-+ break;
-+
-+ return msg.data32;
-+ } while (0);
-+
-+ printk(KERN_CRIT "HSS-%i: unable to read HSS status\n", port->id);
-+ BUG();
-+}
-+
-+static void hss_config_start_chan(struct port *port)
-+{
-+ struct msg msg;
-+
-+ port->chan_last_tx = 0;
-+ port->chan_last_rx = 0;
-+
-+ do {
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = CHAN_RX_BUF_ADDR_WRITE;
-+ msg.hss_port = port->id;
-+ msg.data32 = port->chan_rx_buf_phys;
-+ if (npe_send_message(npe, &msg, "CHAN_RX_BUF_ADDR_WRITE"))
-+ break;
-+
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = CHAN_TX_BUF_ADDR_WRITE;
-+ msg.hss_port = port->id;
-+ msg.data32 = port->chan_tx_pointers_phys;
-+ if (npe_send_message(npe, &msg, "CHAN_TX_BUF_ADDR_WRITE"))
-+ break;
-+
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = CHAN_FLOW_ENABLE;
-+ msg.hss_port = port->id;
-+ if (npe_send_message(npe, &msg, "CHAN_FLOW_ENABLE"))
-+ break;
-+ port->chan_started = 1;
-+ return;
-+ } while (0);
-+
-+ printk(KERN_CRIT "HSS-%i: unable to start channelized flow\n",
-+ port->id);
-+ BUG();
-+}
-+
-+static void hss_config_stop_chan(struct port *port)
-+{
-+ struct msg msg;
-+
-+ if (!port->chan_started)
-+ return;
-+
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = CHAN_FLOW_DISABLE;
-+ msg.hss_port = port->id;
-+ if (npe_send_message(npe, &msg, "CHAN_FLOW_DISABLE")) {
-+ printk(KERN_CRIT "HSS-%i: unable to stop channelized flow\n",
-+ port->id);
-+ BUG();
-+ }
-+ hss_config_get_status(port); /* make sure it's halted */
-+ port->chan_started = 0;
-+}
-+
-+static int hss_config_load_firmware(struct port *port)
-+{
-+ struct msg msg;
-+
-+ if (port->initialized)
-+ return 0;
-+
-+ if (!npe_running(npe)) {
-+ int err;
-+ if ((err = npe_load_firmware(npe, "NPE-A-HSS",
-+ port->dev)))
-+ return err;
-+ }
-+
-+ do {
-+ /* HSS main configuration */
-+ hss_config_set_line(port);
-+
-+ hss_config_set_frame(port);
-+
-+ /* Channelized operation settings */
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = CHAN_TX_BLK_CFG_WRITE;
-+ msg.hss_port = port->id;
-+ msg.data8b = (CHAN_TX_LIST_FRAMES & ~7) / 2;
-+ msg.data8a = msg.data8b / 4;
-+ msg.data8d = CHAN_TX_LIST_FRAMES - msg.data8b;
-+ msg.data8c = msg.data8d / 4;
-+ if (npe_send_message(npe, &msg, "CHAN_TX_BLK_CFG_WRITE"))
-+ break;
-+
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = CHAN_RX_BUF_CFG_WRITE;
-+ msg.hss_port = port->id;
-+ msg.data8a = CHAN_RX_TRIGGER / 8;
-+ msg.data8b = CHAN_RX_FRAMES;
-+ if (npe_send_message(npe, &msg, "CHAN_RX_BUF_CFG_WRITE"))
-+ break;
-+
-+ memset(&msg, 0, sizeof(msg));
-+ msg.cmd = CHAN_TX_BUF_SIZE_WRITE;
-+ msg.hss_port = port->id;
-+ msg.data8a = CHAN_TX_LISTS;
-+ if (npe_send_message(npe, &msg, "CHAN_TX_BUF_SIZE_WRITE"))
-+ break;
-+
-+ port->initialized = 1;
-+ return 0;
-+ } while (0);
-+
-+ printk(KERN_CRIT "HSS-%i: unable to start HSS operation\n", port->id);
-+ BUG();
-+}
-+
-+void hss_chan_irq(void *pdev)
-+{
-+ struct port *port = pdev;
-+
-+ qmgr_disable_irq(queue_ids[port->id].chan);
-+
-+ tasklet_hi_schedule(&port->task);
-+}
-+
-+
-+int hss_prepare_chan(struct port *port)
-+{
-+ int err, i, j;
-+ u32 *temp;
-+ u32 temp2;
-+ u8 *temp3;
-+
-+ if (port->initialized)
-+ return 0;
-+
-+ if ((err = hss_config_load_firmware(port)))
-+ return err;
-+
-+ if ((err = qmgr_request_queue(queue_ids[port->id].chan,
-+ CHAN_QUEUE_LEN, 0, 0, "%s:hss", "hss")))
-+ return err;
-+
-+ port->chan_tx_buf = dma_alloc_coherent(port->dev, chan_tx_buf_len(port), &port->chan_tx_buf_phys, GFP_DMA);
-+ memset(port->chan_tx_buf, 0, chan_tx_buf_len(port));
-+
-+ port->chan_tx_pointers = dma_alloc_coherent(port->dev, chan_tx_buf_len(port) / CHAN_TX_LIST_FRAMES * 4, &port->chan_tx_pointers_phys, GFP_DMA);
-+
-+ temp3 = port->chan_tx_buf;
-+ for (i = 0; i < CHAN_TX_LISTS; i++) {
-+ for (j = 0; j < 8; j++) {
-+ port->tx_lists[i][j] = temp3;
-+ temp3 += CHAN_TX_LIST_FRAMES * 4;
-+ }
-+ }
-+
-+ temp = port->chan_tx_pointers;
-+ temp2 = port->chan_tx_buf_phys;
-+ for (i = 0; i < CHAN_TX_LISTS; i++)
-+ {
-+ for (j = 0; j < 32; j++)
-+ {
-+ *temp = temp2;
-+ temp2 += CHAN_TX_LIST_FRAMES;
-+ temp++;
-+ }
-+ }
-+
-+ port->chan_rx_buf = dma_alloc_coherent(port->dev, chan_rx_buf_len(port), &port->chan_rx_buf_phys, GFP_DMA);
-+
-+ for (i = 0; i < 8; i++) {
-+ temp3 = port->chan_rx_buf + (i * 4 * 128);
-+ for (j = 0; j < 8; j++) {
-+ port->rx_frames[i][j] = temp3;
-+ temp3 += CHAN_RX_TRIGGER;
-+ }
-+ }
-+
-+ qmgr_set_irq(queue_ids[port->id].chan, QUEUE_IRQ_SRC_NOT_EMPTY,
-+ hss_chan_irq, port);
-+
-+ return 0;
-+
-+}
-+
-+int hss_tx_start(struct hss_device *hdev)
-+{
-+ unsigned long flags;
-+ struct port *port = hdev->port;
-+
-+ hdev->tx_loc = 0;
-+ hdev->tx_frame = 0;
-+
-+ set_bit((1 << hdev->id), &port->chan_tx_bitmap);
-+
-+ if (!port->chan_started)
-+ {
-+ qmgr_enable_irq(queue_ids[port->id].chan);
-+ spin_lock_irqsave(&npe_lock, flags);
-+ hss_config_start_chan(port);
-+ spin_unlock_irqrestore(&npe_lock, flags);
-+ hss_chan_irq(port);
-+ }
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(hss_tx_start);
-+
-+int hss_rx_start(struct hss_device *hdev)
-+{
-+ unsigned long flags;
-+ struct port *port = hdev->port;
-+
-+ hdev->rx_loc = 0;
-+ hdev->rx_frame = 0;
-+
-+ set_bit((1 << hdev->id), &port->chan_rx_bitmap);
-+
-+ if (!port->chan_started)
-+ {
-+ qmgr_enable_irq(queue_ids[port->id].chan);
-+ spin_lock_irqsave(&npe_lock, flags);
-+ hss_config_start_chan(port);
-+ spin_unlock_irqrestore(&npe_lock, flags);
-+ hss_chan_irq(port);
-+ }
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(hss_rx_start);
-+
-+int hss_tx_stop(struct hss_device *hdev)
-+{
-+ struct port *port = hdev->port;
-+
-+ clear_bit((1 << hdev->id), &port->chan_tx_bitmap);
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(hss_tx_stop);
-+
-+int hss_rx_stop(struct hss_device *hdev)
-+{
-+ struct port *port = hdev->port;
-+
-+ clear_bit((1 << hdev->id), &port->chan_rx_bitmap);
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(hss_rx_stop);
-+
-+int hss_chan_open(struct hss_device *hdev)
-+{
-+ struct port *port = hdev->port;
-+ int i, err = 0;
-+
-+ if (port->chan_open)
-+ return 0;
-+
-+ if (port->mode == MODE_HDLC) {
-+ err = -ENOSYS;
-+ goto out;
-+ }
-+
-+ if (port->mode == MODE_G704 && port->channels[0] == hdev->id) {
-+ err = -EBUSY; /* channel #0 is used for G.704 signaling */
-+ goto out;
-+ }
-+
-+ for (i = MAX_CHANNELS; i > port->frame_size / 8; i--)
-+ if (port->channels[i - 1] == hdev->id) {
-+ err = -ECHRNG; /* frame too short */
-+ goto out;
-+ }
-+
-+ hdev->rx_loc = hdev->tx_loc = 0;
-+ hdev->rx_frame = hdev->tx_frame = 0;
-+
-+ //clear_bit((1 << hdev->id), &port->chan_rx_bitmap);
-+ //clear_bit((1 << hdev->id), &port->chan_tx_bitmap);
-+
-+ if (!port->initialized) {
-+ hss_prepare_chan(port);
-+
-+ hss_config_stop_chan(port);
-+ hdev->open_count++;
-+ port->chan_open_count++;
-+
-+ hss_config_set_lut(port);
-+ hss_config_load(port);
-+
-+ }
-+ port->chan_open = 1;
-+
-+out:
-+ return err;
-+}
-+EXPORT_SYMBOL(hss_chan_open);
-+
-+int hss_chan_close(struct hss_device *hdev)
-+{
-+ return 0;
-+}
-+EXPORT_SYMBOL(hss_chan_close);
-+
-+void hss_chan_read(unsigned long data)
-+{
-+ struct port *port = (void *)data;
-+ struct hss_device *hdev;
-+ u8 *hw_buf, *save_buf;
-+ u8 *buf;
-+ u32 v;
-+ unsigned int tx_list, rx_frame;
-+ int i, j, channel;
-+ u8 more_work = 0;
-+
-+/*
-+ My Data in the hardware buffer is scattered by channels into 4 trunks
-+ as follows for rx
-+
-+ channel 0 channel 1 channel 2 channel 3
-+Trunk 1 = 0 -> 127 128 -> 255 256 -> 383 384 -> 512
-+Trunk 2 = 513 -> 639 640 -> 768 769 -> 895 896 -> 1023
-+Trunk 3 = 1024 -> 1151 1152 -> 1207 1208 -> 1407 1408 -> 1535
-+Trunk 4 = 1535 -> 1663 1664 -> 1791 1792 -> 1920 1921 -> 2047
-+
-+ I will get CHAN_RX_TRIGGER worth of bytes out of each channel on each trunk
-+ with each IRQ
-+
-+ For TX Data, it is split into 8 lists with each list containing 16 bytes per
-+ channel
-+
-+Trunk 1 = 0 -> 16 17 -> 32 33 -> 48 49 -> 64
-+Trunk 2 = 65 -> 80 81 -> 96 97 -> 112 113 -> 128
-+Trunk 3 = 129 -> 144 145 -> 160 161 -> 176 177 -> 192
-+Trunk 4 = 193 -> 208 209 -> 224 225 -> 240 241 -> 256
-+
-+*/
-+
-+
-+ while ((v = qmgr_get_entry(queue_ids[port->id].chan)))
-+ {
-+ tx_list = (v >> 8) & 0xFF;
-+ rx_frame = v & 0xFF;
-+
-+ if (tx_list == 7)
-+ tx_list = 0;
-+ else
-+ tx_list++;
-+ for (channel = 0; channel < 8; channel++) {
-+
-+ hdev = port->chan_devices[channel];
-+ if (!hdev)
-+ continue;
-+
-+ if (test_bit(1 << channel, &port->chan_tx_bitmap)) {
-+ buf = (u8 *)hdev->tx_buf + hdev->tx_loc;
-+#if 0
-+ hw_buf = (u8 *)port->chan_tx_buf;
-+ hw_buf += (tx_list * CHAN_TX_LIST_FRAMES * 32);
-+ hw_buf += (4 * CHAN_TX_LIST_FRAMES * channel);
-+ save_buf = hw_buf;
-+#else
-+ save_buf = port->tx_lists[tx_list][channel];
-+#endif
-+ for (i = 0; i < CHAN_TX_LIST_FRAMES; i++) {
-+ hw_buf = save_buf + i;
-+ for (j = 0; j < 4; j++) {
-+ *hw_buf = *(buf++);
-+ hw_buf += CHAN_TX_LIST_FRAMES;
-+ }
-+
-+ hdev->tx_loc += 4;
-+ hdev->tx_frame++;
-+ if (hdev->tx_loc >= hdev->tx_buffer_size) {
-+ hdev->tx_loc = 0;
-+ buf = (u8 *)hdev->tx_buf;
-+ }
-+ }
-+ } else {
-+#if 0
-+ hw_buf = (u8 *)port->chan_tx_buf;
-+ hw_buf += (tx_list * CHAN_TX_LIST_FRAMES * 32);
-+ hw_buf += (4 * CHAN_TX_LIST_FRAMES * channel);
-+#else
-+ hw_buf = port->tx_lists[tx_list][channel];
-+#endif
-+ memset(hw_buf, 0, 64);
-+ }
-+
-+ if (hdev->tx_frame >= hdev->tx_period_size && test_bit(1 << channel, &port->chan_tx_bitmap))
-+ {
-+ hdev->tx_frame %= hdev->tx_period_size;
-+ if (hdev->tx_callback)
-+ hdev->tx_callback(hdev->tx_data);
-+ more_work = 1;
-+ }
-+
-+ if (test_bit(1 << channel, &port->chan_rx_bitmap)) {
-+ buf = (u8 *)hdev->rx_buf + hdev->rx_loc;
-+#if 0
-+ hw_buf = (u8 *)port->chan_rx_buf;
-+ hw_buf += (4 * CHAN_RX_FRAMES * channel);
-+ hw_buf += rx_frame;
-+ save_buf = hw_buf;
-+#else
-+ save_buf = port->rx_frames[channel][rx_frame >> 4];
-+#endif
-+ for (i = 0; i < CHAN_RX_TRIGGER; i++) {
-+ hw_buf = save_buf + i;
-+ for (j = 0; j < 4; j++) {
-+ *(buf++) = *hw_buf;
-+ hw_buf += CHAN_RX_FRAMES;
-+ }
-+ hdev->rx_loc += 4;
-+ hdev->rx_frame++;
-+ if (hdev->rx_loc >= hdev->rx_buffer_size) {
-+ hdev->rx_loc = 0;
-+ buf = (u8 *)hdev->rx_buf;
-+ }
-+ }
-+ }
-+
-+ if (hdev->rx_frame >= hdev->rx_period_size && test_bit(1 << channel, &port->chan_rx_bitmap))
-+ {
-+ hdev->rx_frame %= hdev->rx_period_size;
-+ if (hdev->rx_callback)
-+ hdev->rx_callback(hdev->rx_data);
-+ more_work = 1;
-+ }
-+ }
-+#if 0
-+ if (more_work)
-+ {
-+ tasklet_hi_schedule(&port->task);
-+ return;
-+ }
-+#endif
-+ }
-+
-+ qmgr_enable_irq(queue_ids[port->id].chan);
-+
-+ return;
-+
-+}
-+
-+struct hss_device *hss_chan_create(struct port *port, unsigned int channel)
-+{
-+ struct hss_device *chan_dev;
-+ unsigned long flags;
-+
-+ chan_dev = kzalloc(sizeof(struct hss_device), GFP_KERNEL);
-+
-+ spin_lock_irqsave(&npe_lock, flags);
-+
-+ chan_dev->id = channel;
-+ chan_dev->port = port;
-+
-+ port->channels[channel] = channel;
-+
-+ port->chan_devices[channel] = chan_dev;
-+
-+ spin_unlock_irqrestore(&npe_lock, flags);
-+
-+ return chan_dev;
-+}
-+
-+/*****************************************************************************
-+ * initialization
-+ ****************************************************************************/
-+
-+static struct platform_device gw_avila_hss_device_0 = {
-+ .name = "ixp4xx_hss",
-+ .id = 0,
-+};
-+
-+static struct platform_device gw_avila_hss_device_1 = {
-+ .name = "ixp4xx_hss",
-+ .id = 1,
-+};
-+
-+static struct platform_device *gw_avila_hss_port_0;
-+static struct platform_device *gw_avila_hss_port_1;
-+static u64 hss_dmamask = 0xFFFFFFFF;
-+
-+struct hss_device *hss_init(int id, int channel)
-+{
-+ struct port *port = hss_port[id];
-+ struct hss_device *hdev;
-+ int ret;
-+
-+ if (!lock_init)
-+ {
-+ spin_lock_init(&npe_lock);
-+ lock_init = 1;
-+ npe = npe_request(0);
-+ }
-+
-+ if (!port->init) {
-+ if (id == 0) {
-+ gw_avila_hss_port_0 = platform_device_alloc("hss-port", 0);
-+
-+ platform_set_drvdata(gw_avila_hss_port_0, &gw_avila_hss_device_0);
-+ port->dev = &gw_avila_hss_port_0->dev;
-+
-+ if (!port->dev->dma_mask)
-+ port->dev->dma_mask = &hss_dmamask;
-+ if (!port->dev->coherent_dma_mask)
-+ port->dev->coherent_dma_mask = 0xFFFFFFFF;
-+
-+ ret = platform_device_add(gw_avila_hss_port_0);
-+
-+ if (ret)
-+ platform_device_put(gw_avila_hss_port_0);
-+
-+ tasklet_init(&port->task, hss_chan_read, (unsigned long) port);
-+ }
-+ else
-+ {
-+ gw_avila_hss_port_1 = platform_device_alloc("hss-port", 1);
-+
-+ platform_set_drvdata(gw_avila_hss_port_1, &gw_avila_hss_device_1);
-+ port->dev = &gw_avila_hss_port_1->dev;
-+
-+ if (!port->dev->dma_mask)
-+ port->dev->dma_mask = &hss_dmamask;
-+ if (!port->dev->coherent_dma_mask)
-+ port->dev->coherent_dma_mask = 0xFFFFFFFF;
-+
-+ ret = platform_device_add(gw_avila_hss_port_1);
-+
-+ if (ret)
-+ platform_device_put(gw_avila_hss_port_1);
-+
-+ tasklet_init(&port->task, hss_chan_read, (unsigned long) port);
-+ }
-+
-+ port->init = 1;
-+ port->id = id;
-+ port->clock_type = CLOCK_EXT;
-+ port->clock_rate = 8192000;
-+ port->frame_size = 256; /* E1 */
-+ port->mode = MODE_RAW;
-+ port->next_rx_frame = 0;
-+ memset(port->channels, CHANNEL_UNUSED, sizeof(port->channels));
-+ }
-+
-+ hdev = hss_chan_create(port, channel);
-+
-+ return hdev;
-+}
-+EXPORT_SYMBOL(hss_init);
-+
-+int hss_set_tx_callback(struct hss_device *hdev, void (*tx_callback)(void *), void *tx_data)
-+{
-+ BUG_ON(tx_callback == NULL);
-+ hdev->tx_callback = tx_callback;
-+ hdev->tx_data = tx_data;
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(hss_set_tx_callback);
-+
-+int hss_set_rx_callback(struct hss_device *hdev, void (*rx_callback)(void *), void *rx_data)
-+{
-+ BUG_ON(rx_callback == NULL);
-+ hdev->rx_callback = rx_callback;
-+ hdev->rx_data = rx_data;
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(hss_set_rx_callback);
-+
-+int hss_config_rx_dma(struct hss_device *hdev, void *buf, size_t buffer_size, size_t period_size)
-+{
-+ /*
-+ * Period Size and Buffer Size are in Frames which are u32
-+ * We convert the u32 *buf to u8 in order to make channel reads
-+ * and rx_loc easier
-+ */
-+
-+ hdev->rx_buf = (u8 *)buf;
-+ hdev->rx_buffer_size = buffer_size << 2;
-+ hdev->rx_period_size = period_size;
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(hss_config_rx_dma);
-+
-+int hss_config_tx_dma(struct hss_device *hdev, void *buf, size_t buffer_size, size_t period_size)
-+{
-+ /*
-+ * Period Size and Buffer Size are in Frames which are u32
-+ * We convert the u32 *buf to u8 in order to make channel reads
-+ * and rx_loc easier
-+ */
-+
-+ hdev->tx_buf = (u8 *)buf;
-+ hdev->tx_buffer_size = buffer_size << 2;
-+ hdev->tx_period_size = period_size;
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL(hss_config_tx_dma);
-+
-+unsigned long hss_curr_offset_rx(struct hss_device *hdev)
-+{
-+ return hdev->rx_loc >> 2;
-+}
-+EXPORT_SYMBOL(hss_curr_offset_rx);
-+
-+unsigned long hss_curr_offset_tx(struct hss_device *hdev)
-+{
-+ return hdev->tx_loc >> 2;
-+}
-+EXPORT_SYMBOL(hss_curr_offset_tx);
-+
-+MODULE_AUTHOR("Chris Lang");
-+MODULE_DESCRIPTION("Intel IXP4xx HSS Audio driver");
-+MODULE_LICENSE("GPL v2");
---- /dev/null
-+++ b/sound/soc/gw-avila/ixp4xx_hss.h
-@@ -0,0 +1,401 @@
-+/*
-+ *
-+ *
-+ * Copyright (C) 2009 Gateworks Corporation
-+ *
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms of version 2 of the GNU General Public License
-+ * as published by the Free Software Foundation.
-+ */
-+
-+#include <linux/types.h>
-+#include <linux/bitops.h>
-+#include <linux/dma-mapping.h>
-+#include <linux/dmapool.h>
-+#include <linux/fs.h>
-+#include <linux/io.h>
-+#include <linux/kernel.h>
-+#include <linux/platform_device.h>
-+#include <linux/poll.h>
-+#include <mach/npe.h>
-+#include <mach/qmgr.h>
-+#include <linux/interrupt.h>
-+
-+//#include <linux/hdlc.h> XXX We aren't HDLC
-+
-+#define DEBUG_QUEUES 0
-+#define DEBUG_DESC 0
-+#define DEBUG_RX 0
-+#define DEBUG_TX 0
-+#define DEBUG_PKT_BYTES 0
-+#define DEBUG_CLOSE 0
-+#define DEBUG_FRAMER 0
-+
-+#define DRV_NAME "ixp4xx_hss"
-+
-+#define PKT_EXTRA_FLAGS 0 /* orig 1 */
-+#define TX_FRAME_SYNC_OFFSET 0 /* channelized */
-+#define PKT_NUM_PIPES 1 /* 1, 2 or 4 */
-+#define PKT_PIPE_FIFO_SIZEW 4 /* total 4 dwords per HSS */
-+
-+#define RX_DESCS 512 /* also length of all RX queues */
-+#define TX_DESCS 512 /* also length of all TX queues */
-+
-+//#define POOL_ALLOC_SIZE (sizeof(struct desc) * (RX_DESCS + TX_DESCS))
-+#define RX_SIZE (HDLC_MAX_MRU + 4) /* NPE needs more space */
-+#define MAX_CLOSE_WAIT 1000 /* microseconds */
-+#define HSS_COUNT 2
-+#define MIN_FRAME_SIZE 16 /* bits */
-+#define MAX_FRAME_SIZE 257 /* 256 bits + framing bit */
-+#define MAX_CHANNELS (MAX_FRAME_SIZE / 8)
-+#define MAX_CHAN_DEVICES 32
-+#define CHANNEL_HDLC 0xFE
-+#define CHANNEL_UNUSED 0xFF
-+
-+#define NAPI_WEIGHT 16
-+#define CHAN_RX_TRIGGER 16 /* 8 RX frames = 1 ms @ E1 */
-+#define CHAN_RX_FRAMES 128
-+#define CHAN_RX_TRUNKS 1
-+#define MAX_CHAN_RX_BAD_SYNC (CHAN_RX_TRIGGER / 2 /* pairs */ - 3)
-+
-+#define CHAN_TX_LIST_FRAMES CHAN_RX_TRIGGER /* bytes/channel per list, 16 - 48 */
-+#define CHAN_TX_LISTS 8
-+#define CHAN_TX_TRUNKS CHAN_RX_TRUNKS
-+#define CHAN_TX_FRAMES (CHAN_TX_LIST_FRAMES * CHAN_TX_LISTS)
-+
-+#define CHAN_QUEUE_LEN 32 /* minimum possible */
-+
-+#define chan_rx_buf_len(port) (port->frame_size / 8 * CHAN_RX_FRAMES * CHAN_RX_TRUNKS)
-+#define chan_tx_buf_len(port) (port->frame_size / 8 * CHAN_TX_FRAMES * CHAN_TX_TRUNKS)
-+
-+/* Queue IDs */
-+#define HSS0_CHL_RXTRIG_QUEUE 12 /* orig size = 32 dwords */
-+#define HSS0_PKT_RX_QUEUE 13 /* orig size = 32 dwords */
-+#define HSS0_PKT_TX0_QUEUE 14 /* orig size = 16 dwords */
-+#define HSS0_PKT_TX1_QUEUE 15
-+#define HSS0_PKT_TX2_QUEUE 16
-+#define HSS0_PKT_TX3_QUEUE 17
-+#define HSS0_PKT_RXFREE0_QUEUE 18 /* orig size = 16 dwords */
-+#define HSS0_PKT_RXFREE1_QUEUE 19
-+#define HSS0_PKT_RXFREE2_QUEUE 20
-+#define HSS0_PKT_RXFREE3_QUEUE 21
-+#define HSS0_PKT_TXDONE_QUEUE 22 /* orig size = 64 dwords */
-+
-+#define HSS1_CHL_RXTRIG_QUEUE 10
-+#define HSS1_PKT_RX_QUEUE 0
-+#define HSS1_PKT_TX0_QUEUE 5
-+#define HSS1_PKT_TX1_QUEUE 6
-+#define HSS1_PKT_TX2_QUEUE 7
-+#define HSS1_PKT_TX3_QUEUE 8
-+#define HSS1_PKT_RXFREE0_QUEUE 1
-+#define HSS1_PKT_RXFREE1_QUEUE 2
-+#define HSS1_PKT_RXFREE2_QUEUE 3
-+#define HSS1_PKT_RXFREE3_QUEUE 4
-+#define HSS1_PKT_TXDONE_QUEUE 9
-+
-+#define NPE_PKT_MODE_HDLC 0
-+#define NPE_PKT_MODE_RAW 1
-+#define NPE_PKT_MODE_56KMODE 2
-+#define NPE_PKT_MODE_56KENDIAN_MSB 4
-+
-+/* PKT_PIPE_HDLC_CFG_WRITE flags */
-+#define PKT_HDLC_IDLE_ONES 0x1 /* default = flags */
-+#define PKT_HDLC_CRC_32 0x2 /* default = CRC-16 */
-+#define PKT_HDLC_MSB_ENDIAN 0x4 /* default = LE */
-+
-+
-+/* hss_config, PCRs */
-+/* Frame sync sampling, default = active low */
-+#define PCR_FRM_SYNC_ACTIVE_HIGH 0x40000000
-+#define PCR_FRM_SYNC_FALLINGEDGE 0x80000000
-+#define PCR_FRM_SYNC_RISINGEDGE 0xC0000000
-+
-+/* Frame sync pin: input (default) or output generated off a given clk edge */
-+#define PCR_FRM_SYNC_OUTPUT_FALLING 0x20000000
-+#define PCR_FRM_SYNC_OUTPUT_RISING 0x30000000
-+
-+/* Frame and data clock sampling on edge, default = falling */
-+#define PCR_FCLK_EDGE_RISING 0x08000000
-+#define PCR_DCLK_EDGE_RISING 0x04000000
-+
-+/* Clock direction, default = input */
-+#define PCR_SYNC_CLK_DIR_OUTPUT 0x02000000
-+
-+/* Generate/Receive frame pulses, default = enabled */
-+#define PCR_FRM_PULSE_DISABLED 0x01000000
-+
-+ /* Data rate is full (default) or half the configured clk speed */
-+#define PCR_HALF_CLK_RATE 0x00200000
-+
-+/* Invert data between NPE and HSS FIFOs? (default = no) */
-+#define PCR_DATA_POLARITY_INVERT 0x00100000
-+
-+/* TX/RX endianness, default = LSB */
-+#define PCR_MSB_ENDIAN 0x00080000
-+
-+/* Normal (default) / open drain mode (TX only) */
-+#define PCR_TX_PINS_OPEN_DRAIN 0x00040000
-+
-+/* No framing bit transmitted and expected on RX? (default = framing bit) */
-+#define PCR_SOF_NO_FBIT 0x00020000
-+
-+/* Drive data pins? */
-+#define PCR_TX_DATA_ENABLE 0x00010000
-+
-+/* Voice 56k type: drive the data pins low (default), high, high Z */
-+#define PCR_TX_V56K_HIGH 0x00002000
-+#define PCR_TX_V56K_HIGH_IMP 0x00004000
-+
-+/* Unassigned type: drive the data pins low (default), high, high Z */
-+#define PCR_TX_UNASS_HIGH 0x00000800
-+#define PCR_TX_UNASS_HIGH_IMP 0x00001000
-+
-+/* T1 @ 1.544MHz only: Fbit dictated in FIFO (default) or high Z */
-+#define PCR_TX_FB_HIGH_IMP 0x00000400
-+
-+/* 56k data endiannes - which bit unused: high (default) or low */
-+#define PCR_TX_56KE_BIT_0_UNUSED 0x00000200
-+
-+/* 56k data transmission type: 32/8 bit data (default) or 56K data */
-+#define PCR_TX_56KS_56K_DATA 0x00000100
-+
-+/* hss_config, cCR */
-+/* Number of packetized clients, default = 1 */
-+#define CCR_NPE_HFIFO_2_HDLC 0x04000000
-+#define CCR_NPE_HFIFO_3_OR_4HDLC 0x08000000
-+
-+/* default = no loopback */
-+#define CCR_LOOPBACK 0x02000000
-+
-+/* HSS number, default = 0 (first) */
-+#define CCR_SECOND_HSS 0x01000000
-+
-+
-+/* hss_config, clkCR: main:10, num:10, denom:12 */
-+#define CLK42X_SPEED_EXP ((0x3FF << 22) | ( 2 << 12) | 15) /*65 KHz*/
-+
-+#define CLK42X_SPEED_512KHZ (( 130 << 22) | ( 2 << 12) | 15)
-+#define CLK42X_SPEED_1536KHZ (( 43 << 22) | ( 18 << 12) | 47)
-+#define CLK42X_SPEED_1544KHZ (( 43 << 22) | ( 33 << 12) | 192)
-+#define CLK42X_SPEED_2048KHZ (( 32 << 22) | ( 34 << 12) | 63)
-+#define CLK42X_SPEED_4096KHZ (( 16 << 22) | ( 34 << 12) | 127)
-+#define CLK42X_SPEED_8192KHZ (( 8 << 22) | ( 34 << 12) | 255)
-+
-+#define CLK46X_SPEED_512KHZ (( 130 << 22) | ( 24 << 12) | 127)
-+#define CLK46X_SPEED_1536KHZ (( 43 << 22) | (152 << 12) | 383)
-+#define CLK46X_SPEED_1544KHZ (( 43 << 22) | ( 66 << 12) | 385)
-+#define CLK46X_SPEED_2048KHZ (( 32 << 22) | (280 << 12) | 511)
-+#define CLK46X_SPEED_4096KHZ (( 16 << 22) | (280 << 12) | 1023)
-+#define CLK46X_SPEED_8192KHZ (( 8 << 22) | (280 << 12) | 2047)
-+
-+
-+/* hss_config, LUT entries */
-+#define TDMMAP_UNASSIGNED 0
-+#define TDMMAP_HDLC 1 /* HDLC - packetized */
-+#define TDMMAP_VOICE56K 2 /* Voice56K - 7-bit channelized */
-+#define TDMMAP_VOICE64K 3 /* Voice64K - 8-bit channelized */
-+
-+/* offsets into HSS config */
-+#define HSS_CONFIG_TX_PCR 0x00 /* port configuration registers */
-+#define HSS_CONFIG_RX_PCR 0x04
-+#define HSS_CONFIG_CORE_CR 0x08 /* loopback control, HSS# */
-+#define HSS_CONFIG_CLOCK_CR 0x0C /* clock generator control */
-+#define HSS_CONFIG_TX_FCR 0x10 /* frame configuration registers */
-+#define HSS_CONFIG_RX_FCR 0x14
-+#define HSS_CONFIG_TX_LUT 0x18 /* channel look-up tables */
-+#define HSS_CONFIG_RX_LUT 0x38
-+
-+
-+/* NPE command codes */
-+/* writes the ConfigWord value to the location specified by offset */
-+#define PORT_CONFIG_WRITE 0x40
-+
-+/* triggers the NPE to load the contents of the configuration table */
-+#define PORT_CONFIG_LOAD 0x41
-+
-+/* triggers the NPE to return an HssErrorReadResponse message */
-+#define PORT_ERROR_READ 0x42
-+
-+/* reset NPE internal status and enable the HssChannelized operation */
-+#define CHAN_FLOW_ENABLE 0x43
-+#define CHAN_FLOW_DISABLE 0x44
-+#define CHAN_IDLE_PATTERN_WRITE 0x45
-+#define CHAN_NUM_CHANS_WRITE 0x46
-+#define CHAN_RX_BUF_ADDR_WRITE 0x47
-+#define CHAN_RX_BUF_CFG_WRITE 0x48
-+#define CHAN_TX_BLK_CFG_WRITE 0x49
-+#define CHAN_TX_BUF_ADDR_WRITE 0x4A
-+#define CHAN_TX_BUF_SIZE_WRITE 0x4B
-+#define CHAN_TSLOTSWITCH_ENABLE 0x4C
-+#define CHAN_TSLOTSWITCH_DISABLE 0x4D
-+
-+/* downloads the gainWord value for a timeslot switching channel associated
-+ with bypassNum */
-+#define CHAN_TSLOTSWITCH_GCT_DOWNLOAD 0x4E
-+
-+/* triggers the NPE to reset internal status and enable the HssPacketized
-+ operation for the flow specified by pPipe */
-+#define PKT_PIPE_FLOW_ENABLE 0x50
-+#define PKT_PIPE_FLOW_DISABLE 0x51
-+#define PKT_NUM_PIPES_WRITE 0x52
-+#define PKT_PIPE_FIFO_SIZEW_WRITE 0x53
-+#define PKT_PIPE_HDLC_CFG_WRITE 0x54
-+#define PKT_PIPE_IDLE_PATTERN_WRITE 0x55
-+#define PKT_PIPE_RX_SIZE_WRITE 0x56
-+#define PKT_PIPE_MODE_WRITE 0x57
-+
-+/* HDLC packet status values - desc->status */
-+#define ERR_SHUTDOWN 1 /* stop or shutdown occurrance */
-+#define ERR_HDLC_ALIGN 2 /* HDLC alignment error */
-+#define ERR_HDLC_FCS 3 /* HDLC Frame Check Sum error */
-+#define ERR_RXFREE_Q_EMPTY 4 /* RX-free queue became empty while receiving
-+ this packet (if buf_len < pkt_len) */
-+#define ERR_HDLC_TOO_LONG 5 /* HDLC frame size too long */
-+#define ERR_HDLC_ABORT 6 /* abort sequence received */
-+#define ERR_DISCONNECTING 7 /* disconnect is in progress */
-+
-+#define CLOCK_EXT 0
-+#define CLOCK_INT 1
-+
-+enum mode {MODE_HDLC = 0, MODE_RAW, MODE_G704};
-+enum rx_tx_bit {
-+ TX_BIT = 0,
-+ RX_BIT = 1
-+};
-+enum chan_bit {
-+ CHAN_0 = (1 << 0),
-+ CHAN_1 = (1 << 1),
-+ CHAN_2 = (1 << 2),
-+ CHAN_3 = (1 << 3),
-+ CHAN_4 = (1 << 4),
-+ CHAN_5 = (1 << 5),
-+ CHAN_6 = (1 << 6),
-+ CHAN_7 = (1 << 7),
-+ CHAN_8 = (1 << 8),
-+ CHAN_9 = (1 << 9),
-+ CHAN_10 = (1 << 10),
-+ CHAN_11 = (1 << 11),
-+ CHAN_12 = (1 << 12),
-+ CHAN_13 = (1 << 13),
-+ CHAN_14 = (1 << 14),
-+ CHAN_15 = (1 << 15)
-+};
-+
-+enum alignment { NOT_ALIGNED = 0, EVEN_FIRST, ODD_FIRST };
-+
-+#ifdef __ARMEB__
-+typedef struct sk_buff buffer_t;
-+#define free_buffer dev_kfree_skb
-+#define free_buffer_irq dev_kfree_skb_irq
-+#else
-+typedef void buffer_t;
-+#define free_buffer kfree
-+#define free_buffer_irq kfree
-+#endif
-+
-+struct hss_device {
-+ struct port *port;
-+ unsigned int open_count, excl_open;
-+ unsigned long tx_loc, rx_loc; /* bytes */
-+ unsigned long tx_frame, rx_frame; /* Frames */
-+ u8 id, chan_count;
-+ u8 log_channels[MAX_CHANNELS];
-+
-+ u8 *rx_buf;
-+ u8 *tx_buf;
-+
-+ size_t rx_buffer_size;
-+ size_t rx_period_size;
-+ size_t tx_buffer_size;
-+ size_t tx_period_size;
-+
-+ void (*rx_callback)(void *data);
-+ void *rx_data;
-+ void (*tx_callback)(void *data);
-+ void *tx_data;
-+ void *private_data;
-+};
-+
-+extern struct hss_device *hss_handle[32];
-+extern struct port *hss_port[2];
-+
-+struct port {
-+ unsigned char init;
-+
-+ struct device *dev;
-+
-+ struct tasklet_struct task;
-+ unsigned int id;
-+ unsigned long chan_rx_bitmap;
-+ unsigned long chan_tx_bitmap;
-+ unsigned char chan_open;
-+
-+ /* the following fields must be protected by npe_lock */
-+ enum mode mode;
-+ unsigned int clock_type, clock_rate, loopback;
-+ unsigned int frame_size, frame_sync_offset;
-+ unsigned int next_rx_frame;
-+
-+ struct hss_device *chan_devices[MAX_CHAN_DEVICES];
-+ u32 chan_tx_buf_phys, chan_rx_buf_phys;
-+ u32 chan_tx_pointers_phys;
-+ u32 *chan_tx_pointers;
-+ u8 *chan_rx_buf;
-+ u8 *chan_tx_buf;
-+ u8 *tx_lists[CHAN_TX_LISTS][8];
-+ u8 *rx_frames[8][CHAN_TX_LISTS];
-+ unsigned int chan_open_count, hdlc_open;
-+ unsigned int chan_started, initialized, just_set_offset;
-+ unsigned int chan_last_rx, chan_last_tx;
-+
-+ /* assigned channels, may be invalid with given frame length or mode */
-+ u8 channels[MAX_CHANNELS];
-+ int msg_count;
-+};
-+
-+/* NPE message structure */
-+struct msg {
-+#ifdef __ARMEB__
-+ u8 cmd, unused, hss_port, index;
-+ union {
-+ struct { u8 data8a, data8b, data8c, data8d; };
-+ struct { u16 data16a, data16b; };
-+ struct { u32 data32; };
-+ };
-+#else
-+ u8 index, hss_port, unused, cmd;
-+ union {
-+ struct { u8 data8d, data8c, data8b, data8a; };
-+ struct { u16 data16b, data16a; };
-+ struct { u32 data32; };
-+ };
-+#endif
-+};
-+
-+#define rx_desc_phys(port, n) ((port)->desc_tab_phys + \
-+ (n) * sizeof(struct desc))
-+#define rx_desc_ptr(port, n) (&(port)->desc_tab[n])
-+
-+#define tx_desc_phys(port, n) ((port)->desc_tab_phys + \
-+ ((n) + RX_DESCS) * sizeof(struct desc))
-+#define tx_desc_ptr(port, n) (&(port)->desc_tab[(n) + RX_DESCS])
-+
-+int hss_prepare_chan(struct port *port);
-+void hss_chan_stop(struct port *port);
-+
-+struct hss_device *hss_init(int id, int channel);
-+int hss_chan_open(struct hss_device *hdev);
-+int hss_chan_close(struct hss_device *hdev);
-+
-+int hss_set_tx_callback(struct hss_device *hdev, void (*tx_callback)(void *), void *tx_data);
-+int hss_set_rx_callback(struct hss_device *hdev, void (*rx_callback)(void *), void *rx_data);
-+int hss_tx_start(struct hss_device *hdev);
-+int hss_tx_stop(struct hss_device *hdev);
-+int hss_rx_start(struct hss_device *hdev);
-+int hss_rx_stop(struct hss_device *hdev);
-+
-+int hss_config_rx_dma(struct hss_device *hdev, void *buf, size_t buffer_size, size_t period_size);
-+int hss_config_tx_dma(struct hss_device *hdev, void *buf, size_t buffer_size, size_t period_size);
-+unsigned long hss_curr_offset_rx(struct hss_device *hdev);
-+unsigned long hss_curr_offset_tx(struct hss_device *hdev);
-+
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