Thanks Vaibhav for answering, So the files that i should edit are davinci-evm.c (platform driver?) and wm8782.c (codec driver), right?
I have a few questions :) *What snd_soc_dai_link structure should i edit? * (I choosed the da830_dai_link because that was the snd_soc_card struct loaded when the BB Audio cape was inserted, but which one should i edit?) I also tried to write a new davinci-evm.c based on this<https://github.com/koalo/linux/blob/rpi-3.10.y-asoc/sound/soc/bcm/rpi-dac.c> file (from a kernel source for the raspberry pi), here is the code: /* * ASoC Driver. * * 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. * * 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. */ #include <linux/module.h> #include <linux/platform_device.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/jack.h> static int evm_wm8782_init(struct snd_soc_pcm_runtime *rtd) { return 0; } static int evm_wm8782_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 *cpu_dai = rtd->cpu_dai; /*return snd_soc_dai_set_bclk_ratio(cpu_dai, 32*2);*/ return 0; } /* machine stream operations */ static struct snd_soc_ops evm_wm8782_ops = { .hw_params = evm_wm8782_hw_params, }; static struct snd_soc_dai_link evm_wm8782_dai[] = { { .name = "PCM1803 board", .stream_name = "PCM1803 board", .cpu_dai_name = "davinci-mcasp.0", .codec_dai_name = "wm8782-hifi", .platform_name = "davinci-pcm-audio", .codec_name = "wm8782-codec.3-001b", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, .ops = &evm_wm8782_ops, .init = evm_wm8782_init, }, }; /* audio machine driver */ static struct snd_soc_card snd_wm8782_adc = { .name = "snd_wm8782_adc", .dai_link = evm_wm8782_dai, .num_links = ARRAY_SIZE(evm_wm8782_dai), }; static int snd_wm8782_probe(struct platform_device *pdev) { int ret = 0; snd_wm8782_adc.dev = &pdev->dev; ret = snd_soc_register_card(&snd_wm8782_adc); if (ret) dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); return ret; } static int snd_wm8782_remove(struct platform_device *pdev) { return snd_soc_unregister_card(&snd_wm8782_adc); } static struct platform_driver snd_wm8782_driver = { .driver = { .name = "snd-wm8782-adc", .owner = THIS_MODULE, }, .probe = snd_wm8782_probe, .remove = snd_wm8782_remove, }; module_platform_driver(snd_wm8782_driver); MODULE_AUTHOR("E.E.R"); MODULE_DESCRIPTION("ASoC Driver for pcm1803 ADC"); MODULE_LICENSE("GPL v2"); and the codec driver so far is this: * sound/soc/codecs/wm8782.c * simple, strap-pin configured 24bit 2ch ADC * * Copyright: 2011 Raumfeld GmbH * Author: Johannes Stezenbach <[email protected]> * * based on ad73311.c * Copyright: Analog Device Inc. * Author: Cliff Cai <[email protected]> * * 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. */ #include <linux/init.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/device.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/ac97_codec.h> #include <sound/initval.h> #include <sound/soc.h> static struct snd_soc_dai_driver wm8782_dai = { .name = "wm8782-hifi", .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_192000, .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE, }, }; static struct snd_soc_codec_driver soc_codec_dev_wm8782; static int wm8782_probe(struct platform_device *pdev) { return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_wm8782, &wm8782_dai, 1); } static int wm8782_remove(struct platform_device *pdev) { snd_soc_unregister_codec(&pdev->dev); return 0; } static struct platform_driver wm8782_codec_driver = { .driver = { .name = "wm8782", .owner = THIS_MODULE, }, .probe = wm8782_probe, .remove = wm8782_remove, }; module_platform_driver(wm8782_codec_driver); MODULE_DESCRIPTION("ASoC WM8782 driver"); MODULE_AUTHOR("Johannes Stezenbach <[email protected]>"); MODULE_LICENSE("GPL"); When you say "*You should be looking at the device tree files now*" you mean the .dts files? BTW i'm running ubuntu with 3.8.13 kernel version. Thanks again for your support! -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
