soc/fsl/efika-audio-fabric.c

0001 /*
0002  * Efika driver for the PSC of the Freescale MPC52xx
0003  * configured as AC97 interface
0004  *
0005  * Copyright 2008 Jon Smirl, Digispeaker
0006  * Author: Jon Smirl <jonsmirl@gmail.com>
0007  *
0008  * This file is licensed under the terms of the GNU General Public License
0009  * version 2. This program is licensed "as is" without any warranty of any
0010  * kind, whether express or implied.
0011  */
0012
0013 #include <linux/init.h>
0014 #include <linux/module.h>
0015 #include <linux/interrupt.h>
0016 #include <linux/device.h>
0017 #include <linux/delay.h>
0018 #include <linux/of_device.h>
0019 #include <linux/of_platform.h>
0020 #include <linux/dma-mapping.h>
0021
0022 #include <sound/core.h>
0023 #include <sound/pcm.h>
0024 #include <sound/pcm_params.h>
0025 #include <sound/initval.h>
0026 #include <sound/soc.h>
0027
0028 #include "mpc5200_dma.h"
0029
0030 #define DRV_NAME "efika-audio-fabric"
0031
0032 SND_SOC_DAILINK_DEFS(analog,
0033     DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.0")),
0034     DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec",
0035                       "stac9766-hifi-analog")),
0036     DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio")));
0037
0038 SND_SOC_DAILINK_DEFS(iec958,
0039     DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.1")),
0040     DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec",
0041                       "stac9766-hifi-IEC958")),
0042     DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio")));
0043
0044 static struct snd_soc_dai_link efika_fabric_dai[] = {
0045 {
0046     .name = "AC97",
0047     .stream_name = "AC97 Analog",
0048     SND_SOC_DAILINK_REG(analog),
0049 },
0050 {
0051     .name = "AC97",
0052     .stream_name = "AC97 IEC958",
0053     SND_SOC_DAILINK_REG(iec958),
0054 },
0055 };
0056
0057 static struct snd_soc_card card = {
0058     .name = "Efika",
0059     .owner = THIS_MODULE,
0060     .dai_link = efika_fabric_dai,
0061     .num_links = ARRAY_SIZE(efika_fabric_dai),
0062 };
0063
0064 static __init int efika_fabric_init(void)
0065 {
0066     struct platform_device *pdev;
0067     int rc;
0068
0069     if (!of_machine_is_compatible("bplan,efika"))
0070         return -ENODEV;
0071
0072     pdev = platform_device_alloc("soc-audio", 1);
0073     if (!pdev) {
0074         pr_err("efika_fabric_init: platform_device_alloc() failed\n");
0075         return -ENODEV;
0076     }
0077
0078     platform_set_drvdata(pdev, &card);
0079
0080     rc = platform_device_add(pdev);
0081     if (rc) {
0082         pr_err("efika_fabric_init: platform_device_add() failed\n");
0083         platform_device_put(pdev);
0084         return -ENODEV;
0085     }
0086     return 0;
0087 }
0088
0089 module_init(efika_fabric_init);
0090
0091
0092 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
0093 MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver");
0094 MODULE_LICENSE("GPL");
0095