/* * tegra_sgtl5000.c - Tegra machine ASoC driver for boards using SGTL5000 codec * * Author: Marcel Ziswiler * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope 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 . * * Based on code copyright/by: * * Copyright (C) 2010-2012 - NVIDIA, Inc. * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd. * Copyright 2007 Wolfson Microelectronics PLC. */ #include #include #include #include #include #include #include #include #include #include "../codecs/sgtl5000.h" #include "tegra_asoc_utils.h" #define DRV_NAME "tegra-snd-sgtl5000" struct tegra_sgtl5000 { struct tegra_asoc_utils_data util_data; }; static int tegra_sgtl5000_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_card *card = rtd->card; struct tegra_sgtl5000 *machine = snd_soc_card_get_drvdata(card); int srate, mclk; int err; srate = params_rate(params); switch (srate) { case 11025: case 22050: case 44100: case 88200: mclk = 11289600; break; default: mclk = 12288000; break; } err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk); if (err < 0) { dev_err(card->dev, "Can't configure clocks\n"); return err; } err = snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, mclk, SND_SOC_CLOCK_IN); if (err < 0) { dev_err(card->dev, "codec_dai clock not set\n"); return err; } return 0; } static const struct snd_soc_ops tegra_sgtl5000_ops = { .hw_params = tegra_sgtl5000_hw_params, }; static const struct snd_soc_dapm_widget tegra_sgtl5000_dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone Jack", NULL), SND_SOC_DAPM_LINE("Line In Jack", NULL), SND_SOC_DAPM_MIC("Mic Jack", NULL), }; static struct snd_soc_dai_link tegra_sgtl5000_dai = { .name = "sgtl5000", .stream_name = "HiFi", .codec_dai_name = "sgtl5000", .ops = &tegra_sgtl5000_ops, .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, }; static struct snd_soc_card snd_soc_tegra_sgtl5000 = { .name = "tegra-sgtl5000", .owner = THIS_MODULE, .dai_link = &tegra_sgtl5000_dai, .num_links = 1, .dapm_widgets = tegra_sgtl5000_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(tegra_sgtl5000_dapm_widgets), .fully_routed = true, }; static int tegra_sgtl5000_driver_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct snd_soc_card *card = &snd_soc_tegra_sgtl5000; struct tegra_sgtl5000 *machine; int ret; machine = devm_kzalloc(&pdev->dev, sizeof(struct tegra_sgtl5000), GFP_KERNEL); if (!machine) { dev_err(&pdev->dev, "Can't allocate tegra_sgtl5000 struct\n"); return -ENOMEM; } card->dev = &pdev->dev; platform_set_drvdata(pdev, card); snd_soc_card_set_drvdata(card, machine); ret = snd_soc_of_parse_card_name(card, "nvidia,model"); if (ret) goto err; ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing"); if (ret) goto err; tegra_sgtl5000_dai.codec_of_node = of_parse_phandle(np, "nvidia,audio-codec", 0); if (!tegra_sgtl5000_dai.codec_of_node) { dev_err(&pdev->dev, "Property 'nvidia,audio-codec' missing or invalid\n"); ret = -EINVAL; goto err; } tegra_sgtl5000_dai.cpu_of_node = of_parse_phandle(np, "nvidia,i2s-controller", 0); if (!tegra_sgtl5000_dai.cpu_of_node) { dev_err(&pdev->dev, "Property 'nvidia,i2s-controller' missing/invalid\n"); ret = -EINVAL; goto err; } tegra_sgtl5000_dai.platform_of_node = tegra_sgtl5000_dai.cpu_of_node; ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev); if (ret) goto err; ret = snd_soc_register_card(card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); goto err_fini_utils; } return 0; err_fini_utils: tegra_asoc_utils_fini(&machine->util_data); err: return ret; } static int tegra_sgtl5000_driver_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); struct tegra_sgtl5000 *machine = snd_soc_card_get_drvdata(card); int ret; ret = snd_soc_unregister_card(card); tegra_asoc_utils_fini(&machine->util_data); return ret; } static const struct of_device_id tegra_sgtl5000_of_match[] = { { .compatible = "nvidia,tegra-audio-sgtl5000", }, { /* sentinel */ }, }; static struct platform_driver tegra_sgtl5000_driver = { .driver = { .name = DRV_NAME, .pm = &snd_soc_pm_ops, .of_match_table = tegra_sgtl5000_of_match, }, .probe = tegra_sgtl5000_driver_probe, .remove = tegra_sgtl5000_driver_remove, }; module_platform_driver(tegra_sgtl5000_driver); MODULE_AUTHOR("Marcel Ziswiler "); MODULE_DESCRIPTION("Tegra SGTL5000 machine ASoC driver"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:" DRV_NAME); MODULE_DEVICE_TABLE(of, tegra_sgtl5000_of_match); descriptor information among different chips. So far driver does not use those new information for any functionalities, but there is one important information which is available from QCA99X0 onwards to indicate the number of bytes that hw padded at the begining of the rx payload and this information is needed to undecap the rx packet. Add an abstraction for Rx desc to make use of the new desc information available. The callback that this patch defines to retrieve the padding bytes will be used in follow-up patch. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> [Rename operations to hw_ops for other purposes] Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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