132 lines
3.3 KiB
C
132 lines
3.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// Copyright (c) 2018 MediaTek Inc.
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/pm_runtime.h>
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#include <sound/soc.h>
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#include "mtk-base-scp-spk.h"
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#include "mtk-scp-spk-common.h"
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#include "mtk-scp-spk-mem-control.h"
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#include "mtk-scp-spk-platform-driver.h"
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#include "audio_ipi_client_spkprotect.h"
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#define MTK_PCM_RATES (SNDRV_PCM_RATE_8000_48000 |\
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SNDRV_PCM_RATE_88200 |\
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SNDRV_PCM_RATE_96000 |\
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SNDRV_PCM_RATE_176400 |\
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SNDRV_PCM_RATE_192000)
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#define MTK_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
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SNDRV_PCM_FMTBIT_S24_LE |\
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SNDRV_PCM_FMTBIT_S32_LE)
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static const struct snd_pcm_hardware scp_spk_hardware = {
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.info = (SNDRV_PCM_INFO_MMAP |
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SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
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SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_RESUME |
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SNDRV_PCM_INFO_MMAP_VALID),
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.formats = (SNDRV_PCM_FMTBIT_S16_LE |
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SNDRV_PCM_FMTBIT_S24_LE |
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SNDRV_PCM_FMTBIT_S32_LE),
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.rates = MTK_PCM_RATES,
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.period_bytes_min = 256,
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.period_bytes_max = SPK_BUF_OFFSET,
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.periods_min = 2,
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.periods_max = 4096,
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.buffer_bytes_max = SPK_BUF_OFFSET,
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.fifo_size = 0,
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};
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static int scp_spk_pcm_dev_probe(struct platform_device *pdev)
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{
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struct device *dev;
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struct mtk_base_scp_spk *scp_spk;
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int ret = 0;
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dev_info(&pdev->dev, "%s()\n", __func__);
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scp_spk = devm_kzalloc(&pdev->dev,
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sizeof(struct mtk_base_scp_spk), GFP_KERNEL);
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if (!scp_spk)
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return -ENOMEM;
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scp_spk->spk_dump.dump_ops =
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devm_kzalloc(&pdev->dev,
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sizeof(struct scp_spk_dump_ops),
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GFP_KERNEL);
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if (!scp_spk->spk_dump.dump_ops)
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return -ENOMEM;
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/* register dsp dai driver*/
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scp_spk->mtk_dsp_hardware = &scp_spk_hardware;
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scp_spk->dev = &pdev->dev;
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reset_audio_dma_buf(&scp_spk->spk_mem.platform_dma_buf);
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reset_audio_dma_buf(&scp_spk->spk_mem.spk_dl_dma_buf);
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reset_audio_dma_buf(&scp_spk->spk_mem.spk_iv_dma_buf);
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reset_audio_dma_buf(&scp_spk->spk_mem.spk_md_ul_dma_buf);
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scp_spk->spk_mem.spk_iv_memif_id = -1;
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scp_spk->spk_mem.spk_dl_memif_id = -1;
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scp_spk->spk_mem.spk_md_ul_memif_id = -1;
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dev = scp_spk->dev;
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platform_set_drvdata(pdev, scp_spk);
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pm_runtime_enable(&pdev->dev);
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if (pdev->dev.of_node) {
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dev_set_name(&pdev->dev, "%s", "snd_scp_spk");
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pdev->name = pdev->dev.kobj.name;
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} else {
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pr_debug("%s(), pdev->dev.of_node = NULL!!!\n", __func__);
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}
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ret = snd_soc_register_platform(&pdev->dev, &mtk_scp_spk_pcm_platform);
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if (ret) {
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dev_warn(&pdev->dev, "err_platform\n");
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goto err_platform;
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}
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set_ipi_recv_private((void *)scp_spk);
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set_scp_spk_base((void *)scp_spk);
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return 0;
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err_platform:
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snd_soc_unregister_platform(&pdev->dev);
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return ret;
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}
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static int scp_spk_pcm_dev_remove(struct platform_device *pdev)
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{
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return 0;
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}
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static const struct of_device_id scp_spk_pcm_dt_match[] = {
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{ .compatible = "mediatek,snd_scp_spk", },
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};
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MODULE_DEVICE_TABLE(of, scp_spk_pcm_dt_match);
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static struct platform_driver scp_spk_pcm_driver = {
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.driver = {
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.name = "snd_scp_spk",
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.owner = THIS_MODULE,
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.of_match_table = scp_spk_pcm_dt_match,
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},
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.probe = scp_spk_pcm_dev_probe,
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.remove = scp_spk_pcm_dev_remove,
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};
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module_platform_driver(scp_spk_pcm_driver);
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MODULE_DESCRIPTION("Mediatek ALSA SoC scp spk platform driver");
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MODULE_AUTHOR("Shane Chien <Shane.Chien@mediatek.com>");
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MODULE_LICENSE("GPL v2");
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