+++ /dev/null
-/*
- * ASoC driver for TI DAVINCI EVM platform
- *
- * Author: Vladimir Barinov, <vbarinov@embeddedalley.com>
- * Copyright: (C) 2007 MontaVista Software, Inc., <source@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/moduleparam.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <linux/i2c.h>
-#include <linux/of_platform.h>
-#include <linux/clk.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/soc.h>
-
-#include <asm/dma.h>
-#include <asm/mach-types.h>
-
-struct snd_soc_card_drvdata_davinci {
- struct clk *mclk;
- unsigned sysclk;
-};
-
-static int evm_startup(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_card *soc_card = rtd->card;
- struct snd_soc_card_drvdata_davinci *drvdata =
- snd_soc_card_get_drvdata(soc_card);
-
- if (drvdata->mclk)
- return clk_prepare_enable(drvdata->mclk);
-
- return 0;
-}
-
-static void evm_shutdown(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_card *soc_card = rtd->card;
- struct snd_soc_card_drvdata_davinci *drvdata =
- snd_soc_card_get_drvdata(soc_card);
-
- if (drvdata->mclk)
- clk_disable_unprepare(drvdata->mclk);
-}
-
-static int evm_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;
- struct snd_soc_card *soc_card = rtd->card;
- int ret = 0;
- unsigned sysclk = ((struct snd_soc_card_drvdata_davinci *)
- snd_soc_card_get_drvdata(soc_card))->sysclk;
-
- /* set the codec system clock */
- ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
- if (ret < 0)
- return ret;
-
- /* set the CPU system clock */
- ret = snd_soc_dai_set_sysclk(cpu_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static struct snd_soc_ops evm_ops = {
- .startup = evm_startup,
- .shutdown = evm_shutdown,
- .hw_params = evm_hw_params,
-};
-
-/* davinci-evm machine dapm widgets */
-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_MIC("Mic Jack", NULL),
- SND_SOC_DAPM_LINE("Line In", NULL),
-};
-
-/* davinci-evm machine audio_mapnections to the codec pins */
-static const struct snd_soc_dapm_route audio_map[] = {
- /* Headphone connected to HPLOUT, HPROUT */
- {"Headphone Jack", NULL, "HPLOUT"},
- {"Headphone Jack", NULL, "HPROUT"},
-
- /* Line Out connected to LLOUT, RLOUT */
- {"Line Out", NULL, "LLOUT"},
- {"Line Out", NULL, "RLOUT"},
-
- /* Mic connected to (MIC3L | MIC3R) */
- {"MIC3L", NULL, "Mic Bias"},
- {"MIC3R", NULL, "Mic Bias"},
- {"Mic Bias", NULL, "Mic Jack"},
-
- /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
- {"LINE1L", NULL, "Line In"},
- {"LINE2L", NULL, "Line In"},
- {"LINE1R", NULL, "Line In"},
- {"LINE2R", NULL, "Line In"},
-};
-
-/* Logic for a aic3x as connected on a davinci-evm */
-static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_card *card = rtd->card;
- struct device_node *np = card->dev->of_node;
- int ret;
-
- /* Add davinci-evm specific widgets */
- snd_soc_dapm_new_controls(&card->dapm, aic3x_dapm_widgets,
- ARRAY_SIZE(aic3x_dapm_widgets));
-
- if (np) {
- ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing");
- if (ret)
- return ret;
- } else {
- /* Set up davinci-evm specific audio path audio_map */
- snd_soc_dapm_add_routes(&card->dapm, audio_map,
- ARRAY_SIZE(audio_map));
- }
-
- /* not connected */
- snd_soc_dapm_nc_pin(&card->dapm, "MONO_LOUT");
- snd_soc_dapm_nc_pin(&card->dapm, "HPLCOM");
- snd_soc_dapm_nc_pin(&card->dapm, "HPRCOM");
-
- return 0;
-}
-
-/* davinci-evm digital audio interface glue - connects codec <--> CPU */
-static struct snd_soc_dai_link dm6446_evm_dai = {
- .name = "TLV320AIC3X",
- .stream_name = "AIC3X",
- .cpu_dai_name = "davinci-mcbsp",
- .codec_dai_name = "tlv320aic3x-hifi",
- .codec_name = "tlv320aic3x-codec.1-001b",
- .platform_name = "davinci-mcbsp",
- .init = evm_aic3x_init,
- .ops = &evm_ops,
- .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
- SND_SOC_DAIFMT_IB_NF,
-};
-
-static struct snd_soc_dai_link dm355_evm_dai = {
- .name = "TLV320AIC3X",
- .stream_name = "AIC3X",
- .cpu_dai_name = "davinci-mcbsp.1",
- .codec_dai_name = "tlv320aic3x-hifi",
- .codec_name = "tlv320aic3x-codec.1-001b",
- .platform_name = "davinci-mcbsp.1",
- .init = evm_aic3x_init,
- .ops = &evm_ops,
- .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
- SND_SOC_DAIFMT_IB_NF,
-};
-
-static struct snd_soc_dai_link dm365_evm_dai = {
-#ifdef CONFIG_SND_DM365_AIC3X_CODEC
- .name = "TLV320AIC3X",
- .stream_name = "AIC3X",
- .cpu_dai_name = "davinci-mcbsp",
- .codec_dai_name = "tlv320aic3x-hifi",
- .codec_name = "tlv320aic3x-codec.1-0018",
- .platform_name = "davinci-mcbsp",
- .init = evm_aic3x_init,
- .ops = &evm_ops,
- .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
- SND_SOC_DAIFMT_IB_NF,
-#elif defined(CONFIG_SND_DM365_VOICE_CODEC)
- .name = "Voice Codec - CQ93VC",
- .stream_name = "CQ93",
- .cpu_dai_name = "davinci-vcif",
- .codec_dai_name = "cq93vc-hifi",
- .codec_name = "cq93vc-codec",
- .platform_name = "davinci-vcif",
-#endif
-};
-
-static struct snd_soc_dai_link dm6467_evm_dai[] = {
- {
- .name = "TLV320AIC3X",
- .stream_name = "AIC3X",
- .cpu_dai_name= "davinci-mcasp.0",
- .codec_dai_name = "tlv320aic3x-hifi",
- .platform_name = "davinci-mcasp.0",
- .codec_name = "tlv320aic3x-codec.0-001a",
- .init = evm_aic3x_init,
- .ops = &evm_ops,
- .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
- SND_SOC_DAIFMT_IB_NF,
- },
- {
- .name = "McASP",
- .stream_name = "spdif",
- .cpu_dai_name= "davinci-mcasp.1",
- .codec_dai_name = "dit-hifi",
- .codec_name = "spdif_dit",
- .platform_name = "davinci-mcasp.1",
- .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
- SND_SOC_DAIFMT_IB_NF,
- },
-};
-
-static struct snd_soc_dai_link da830_evm_dai = {
- .name = "TLV320AIC3X",
- .stream_name = "AIC3X",
- .cpu_dai_name = "davinci-mcasp.1",
- .codec_dai_name = "tlv320aic3x-hifi",
- .codec_name = "tlv320aic3x-codec.1-0018",
- .platform_name = "davinci-mcasp.1",
- .init = evm_aic3x_init,
- .ops = &evm_ops,
- .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
- SND_SOC_DAIFMT_IB_NF,
-};
-
-static struct snd_soc_dai_link da850_evm_dai = {
- .name = "TLV320AIC3X",
- .stream_name = "AIC3X",
- .cpu_dai_name= "davinci-mcasp.0",
- .codec_dai_name = "tlv320aic3x-hifi",
- .codec_name = "tlv320aic3x-codec.1-0018",
- .platform_name = "davinci-mcasp.0",
- .init = evm_aic3x_init,
- .ops = &evm_ops,
- .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
- SND_SOC_DAIFMT_IB_NF,
-};
-
-/* davinci dm6446 evm audio machine driver */
-/*
- * ASP0 in DM6446 EVM is clocked by U55, as configured by
- * board-dm644x-evm.c using GPIOs from U18. There are six
- * options; here we "know" we use a 48 KHz sample rate.
- */
-static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = {
- .sysclk = 12288000,
-};
-
-static struct snd_soc_card dm6446_snd_soc_card_evm = {
- .name = "DaVinci DM6446 EVM",
- .owner = THIS_MODULE,
- .dai_link = &dm6446_evm_dai,
- .num_links = 1,
- .drvdata = &dm6446_snd_soc_card_drvdata,
-};
-
-/* davinci dm355 evm audio machine driver */
-/* ASP1 on DM355 EVM is clocked by an external oscillator */
-static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = {
- .sysclk = 27000000,
-};
-
-static struct snd_soc_card dm355_snd_soc_card_evm = {
- .name = "DaVinci DM355 EVM",
- .owner = THIS_MODULE,
- .dai_link = &dm355_evm_dai,
- .num_links = 1,
- .drvdata = &dm355_snd_soc_card_drvdata,
-};
-
-/* davinci dm365 evm audio machine driver */
-static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = {
- .sysclk = 27000000,
-};
-
-static struct snd_soc_card dm365_snd_soc_card_evm = {
- .name = "DaVinci DM365 EVM",
- .owner = THIS_MODULE,
- .dai_link = &dm365_evm_dai,
- .num_links = 1,
- .drvdata = &dm365_snd_soc_card_drvdata,
-};
-
-/* davinci dm6467 evm audio machine driver */
-static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = {
- .sysclk = 27000000,
-};
-
-static struct snd_soc_card dm6467_snd_soc_card_evm = {
- .name = "DaVinci DM6467 EVM",
- .owner = THIS_MODULE,
- .dai_link = dm6467_evm_dai,
- .num_links = ARRAY_SIZE(dm6467_evm_dai),
- .drvdata = &dm6467_snd_soc_card_drvdata,
-};
-
-static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = {
- .sysclk = 24576000,
-};
-
-static struct snd_soc_card da830_snd_soc_card = {
- .name = "DA830/OMAP-L137 EVM",
- .owner = THIS_MODULE,
- .dai_link = &da830_evm_dai,
- .num_links = 1,
- .drvdata = &da830_snd_soc_card_drvdata,
-};
-
-static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = {
- .sysclk = 24576000,
-};
-
-static struct snd_soc_card da850_snd_soc_card = {
- .name = "DA850/OMAP-L138 EVM",
- .owner = THIS_MODULE,
- .dai_link = &da850_evm_dai,
- .num_links = 1,
- .drvdata = &da850_snd_soc_card_drvdata,
-};
-
-#if defined(CONFIG_OF)
-
-/*
- * The struct is used as place holder. It will be completely
- * filled with data from dt node.
- */
-static struct snd_soc_dai_link evm_dai_tlv320aic3x = {
- .name = "TLV320AIC3X",
- .stream_name = "AIC3X",
- .codec_dai_name = "tlv320aic3x-hifi",
- .ops = &evm_ops,
- .init = evm_aic3x_init,
- .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
- SND_SOC_DAIFMT_IB_NF,
-};
-
-static const struct of_device_id davinci_evm_dt_ids[] = {
- {
- .compatible = "ti,da830-evm-audio",
- .data = (void *) &evm_dai_tlv320aic3x,
- },
- { /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, davinci_evm_dt_ids);
-
-/* davinci evm audio machine driver */
-static struct snd_soc_card evm_soc_card = {
- .owner = THIS_MODULE,
- .num_links = 1,
-};
-
-static int davinci_evm_probe(struct platform_device *pdev)
-{
- struct device_node *np = pdev->dev.of_node;
- const struct of_device_id *match;
- struct snd_soc_dai_link *dai;
- struct snd_soc_card_drvdata_davinci *drvdata = NULL;
- struct clk *mclk;
- int ret = 0;
-
- match = of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
- if (!match) {
- dev_err(&pdev->dev, "Error: No device match found\n");
- return -ENODEV;
- }
-
- dai = (struct snd_soc_dai_link *) match->data;
-
- evm_soc_card.dai_link = dai;
-
- dai->codec_of_node = of_parse_phandle(np, "ti,audio-codec", 0);
- if (!dai->codec_of_node)
- return -EINVAL;
-
- dai->cpu_of_node = of_parse_phandle(np, "ti,mcasp-controller", 0);
- if (!dai->cpu_of_node)
- return -EINVAL;
-
- dai->platform_of_node = dai->cpu_of_node;
-
- evm_soc_card.dev = &pdev->dev;
- ret = snd_soc_of_parse_card_name(&evm_soc_card, "ti,model");
- if (ret)
- return ret;
-
- mclk = devm_clk_get(&pdev->dev, "mclk");
- if (PTR_ERR(mclk) == -EPROBE_DEFER) {
- return -EPROBE_DEFER;
- } else if (IS_ERR(mclk)) {
- dev_dbg(&pdev->dev, "mclk not found.\n");
- mclk = NULL;
- }
-
- drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
- if (!drvdata)
- return -ENOMEM;
-
- drvdata->mclk = mclk;
-
- ret = of_property_read_u32(np, "ti,codec-clock-rate", &drvdata->sysclk);
-
- if (ret < 0) {
- if (!drvdata->mclk) {
- dev_err(&pdev->dev,
- "No clock or clock rate defined.\n");
- return -EINVAL;
- }
- drvdata->sysclk = clk_get_rate(drvdata->mclk);
- } else if (drvdata->mclk) {
- unsigned int requestd_rate = drvdata->sysclk;
- clk_set_rate(drvdata->mclk, drvdata->sysclk);
- drvdata->sysclk = clk_get_rate(drvdata->mclk);
- if (drvdata->sysclk != requestd_rate)
- dev_warn(&pdev->dev,
- "Could not get requested rate %u using %u.\n",
- requestd_rate, drvdata->sysclk);
- }
-
- snd_soc_card_set_drvdata(&evm_soc_card, drvdata);
- ret = devm_snd_soc_register_card(&pdev->dev, &evm_soc_card);
-
- if (ret)
- dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
-
- return ret;
-}
-
-static struct platform_driver davinci_evm_driver = {
- .probe = davinci_evm_probe,
- .driver = {
- .name = "davinci_evm",
- .pm = &snd_soc_pm_ops,
- .of_match_table = of_match_ptr(davinci_evm_dt_ids),
- },
-};
-#endif
-
-static struct platform_device *evm_snd_device;
-
-static int __init evm_init(void)
-{
- struct snd_soc_card *evm_snd_dev_data;
- int index;
- int ret;
-
- /*
- * If dtb is there, the devices will be created dynamically.
- * Only register platfrom driver structure.
- */
-#if defined(CONFIG_OF)
- if (of_have_populated_dt())
- return platform_driver_register(&davinci_evm_driver);
-#endif
-
- if (machine_is_davinci_evm()) {
- evm_snd_dev_data = &dm6446_snd_soc_card_evm;
- index = 0;
- } else if (machine_is_davinci_dm355_evm()) {
- evm_snd_dev_data = &dm355_snd_soc_card_evm;
- index = 1;
- } else if (machine_is_davinci_dm365_evm()) {
- evm_snd_dev_data = &dm365_snd_soc_card_evm;
- index = 0;
- } else if (machine_is_davinci_dm6467_evm()) {
- evm_snd_dev_data = &dm6467_snd_soc_card_evm;
- index = 0;
- } else if (machine_is_davinci_da830_evm()) {
- evm_snd_dev_data = &da830_snd_soc_card;
- index = 1;
- } else if (machine_is_davinci_da850_evm()) {
- evm_snd_dev_data = &da850_snd_soc_card;
- index = 0;
- } else
- return -EINVAL;
-
- evm_snd_device = platform_device_alloc("soc-audio", index);
- if (!evm_snd_device)
- return -ENOMEM;
-
- platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
- ret = platform_device_add(evm_snd_device);
- if (ret)
- platform_device_put(evm_snd_device);
-
- return ret;
-}
-
-static void __exit evm_exit(void)
-{
-#if defined(CONFIG_OF)
- if (of_have_populated_dt()) {
- platform_driver_unregister(&davinci_evm_driver);
- return;
- }
-#endif
-
- platform_device_unregister(evm_snd_device);
-}
-
-module_init(evm_init);
-module_exit(evm_exit);
-
-MODULE_AUTHOR("Vladimir Barinov");
-MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
-MODULE_LICENSE("GPL");
git.samba.org / sfrench / cifs-2.6.git / blobdiff