cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

efika-audio-fabric.c (2292B)

      1/*
      2 * Efika driver for the PSC of the Freescale MPC52xx
      3 * configured as AC97 interface
      4 *
      5 * Copyright 2008 Jon Smirl, Digispeaker
      6 * Author: Jon Smirl <jonsmirl@gmail.com>
      7 *
      8 * This file is licensed under the terms of the GNU General Public License
      9 * version 2. This program is licensed "as is" without any warranty of any
     10 * kind, whether express or implied.
     11 */
     12
     13#include <linux/init.h>
     14#include <linux/module.h>
     15#include <linux/interrupt.h>
     16#include <linux/device.h>
     17#include <linux/delay.h>
     18#include <linux/of_device.h>
     19#include <linux/of_platform.h>
     20#include <linux/dma-mapping.h>
     21
     22#include <sound/core.h>
     23#include <sound/pcm.h>
     24#include <sound/pcm_params.h>
     25#include <sound/initval.h>
     26#include <sound/soc.h>
     27
     28#include "mpc5200_dma.h"
     29
     30#define DRV_NAME "efika-audio-fabric"
     31
     32SND_SOC_DAILINK_DEFS(analog,
     33	DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.0")),
     34	DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec",
     35				      "stac9766-hifi-analog")),
     36	DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio")));
     37
     38SND_SOC_DAILINK_DEFS(iec958,
     39	DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.1")),
     40	DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec",
     41				      "stac9766-hifi-IEC958")),
     42	DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio")));
     43
     44static struct snd_soc_dai_link efika_fabric_dai[] = {
     45{
     46	.name = "AC97",
     47	.stream_name = "AC97 Analog",
     48	SND_SOC_DAILINK_REG(analog),
     49},
     50{
     51	.name = "AC97",
     52	.stream_name = "AC97 IEC958",
     53	SND_SOC_DAILINK_REG(iec958),
     54},
     55};
     56
     57static struct snd_soc_card card = {
     58	.name = "Efika",
     59	.owner = THIS_MODULE,
     60	.dai_link = efika_fabric_dai,
     61	.num_links = ARRAY_SIZE(efika_fabric_dai),
     62};
     63
     64static __init int efika_fabric_init(void)
     65{
     66	struct platform_device *pdev;
     67	int rc;
     68
     69	if (!of_machine_is_compatible("bplan,efika"))
     70		return -ENODEV;
     71
     72	pdev = platform_device_alloc("soc-audio", 1);
     73	if (!pdev) {
     74		pr_err("efika_fabric_init: platform_device_alloc() failed\n");
     75		return -ENODEV;
     76	}
     77
     78	platform_set_drvdata(pdev, &card);
     79
     80	rc = platform_device_add(pdev);
     81	if (rc) {
     82		pr_err("efika_fabric_init: platform_device_add() failed\n");
     83		platform_device_put(pdev);
     84		return -ENODEV;
     85	}
     86	return 0;
     87}
     88
     89module_init(efika_fabric_init);
     90
     91
     92MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
     93MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver");
     94MODULE_LICENSE("GPL");
     95