fsl_spdif.c (6f23fc47c1b2ac226704fb7294f43ed3b0965e51) fsl_spdif.c (14ec63f678e8beaaa1005ccae6c112bf672ba2b3)
1// SPDX-License-Identifier: GPL-2.0
2//
3// Freescale S/PDIF ALSA SoC Digital Audio Interface (DAI) driver
4//
5// Copyright (C) 2013 Freescale Semiconductor, Inc.
6//
7// Based on stmp3xxx_spdif_dai.c
8// Vladimir Barinov <vbarinov@embeddedalley.com>

--- 488 unchanged lines hidden (view full) ---

497 return 0;
498}
499
500static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv, enum spdif_txrate index);
501
502static int spdif_set_sample_rate(struct snd_pcm_substream *substream,
503 int sample_rate)
504{
1// SPDX-License-Identifier: GPL-2.0
2//
3// Freescale S/PDIF ALSA SoC Digital Audio Interface (DAI) driver
4//
5// Copyright (C) 2013 Freescale Semiconductor, Inc.
6//
7// Based on stmp3xxx_spdif_dai.c
8// Vladimir Barinov <vbarinov@embeddedalley.com>

--- 488 unchanged lines hidden (view full) ---

497 return 0;
498}
499
500static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv, enum spdif_txrate index);
501
502static int spdif_set_sample_rate(struct snd_pcm_substream *substream,
503 int sample_rate)
504{
505 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
506 struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
505 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
506 struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0));
507 struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
508 struct regmap *regmap = spdif_priv->regmap;
509 struct platform_device *pdev = spdif_priv->pdev;
510 unsigned long csfs = 0;
511 u32 stc, mask, rate;
512 u16 sysclk_df;
513 u8 clk, txclk_df;
514 int ret;

--- 85 unchanged lines hidden (view full) ---

600 spdif_priv->txrate[rate], sample_rate);
601
602 return 0;
603}
604
605static int fsl_spdif_startup(struct snd_pcm_substream *substream,
606 struct snd_soc_dai *cpu_dai)
607{
507 struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
508 struct regmap *regmap = spdif_priv->regmap;
509 struct platform_device *pdev = spdif_priv->pdev;
510 unsigned long csfs = 0;
511 u32 stc, mask, rate;
512 u16 sysclk_df;
513 u8 clk, txclk_df;
514 int ret;

--- 85 unchanged lines hidden (view full) ---

600 spdif_priv->txrate[rate], sample_rate);
601
602 return 0;
603}
604
605static int fsl_spdif_startup(struct snd_pcm_substream *substream,
606 struct snd_soc_dai *cpu_dai)
607{
608 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
609 struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
608 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
609 struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0));
610 struct platform_device *pdev = spdif_priv->pdev;
611 struct regmap *regmap = spdif_priv->regmap;
612 u32 scr, mask;
613 int ret;
614
615 /* Reset module and interrupts only for first initialization */
616 if (!snd_soc_dai_active(cpu_dai)) {
617 ret = spdif_softreset(spdif_priv);

--- 24 unchanged lines hidden (view full) ---

642 regmap_update_bits(regmap, REG_SPDIF_SCR, SCR_LOW_POWER, 0);
643
644 return 0;
645}
646
647static void fsl_spdif_shutdown(struct snd_pcm_substream *substream,
648 struct snd_soc_dai *cpu_dai)
649{
610 struct platform_device *pdev = spdif_priv->pdev;
611 struct regmap *regmap = spdif_priv->regmap;
612 u32 scr, mask;
613 int ret;
614
615 /* Reset module and interrupts only for first initialization */
616 if (!snd_soc_dai_active(cpu_dai)) {
617 ret = spdif_softreset(spdif_priv);

--- 24 unchanged lines hidden (view full) ---

642 regmap_update_bits(regmap, REG_SPDIF_SCR, SCR_LOW_POWER, 0);
643
644 return 0;
645}
646
647static void fsl_spdif_shutdown(struct snd_pcm_substream *substream,
648 struct snd_soc_dai *cpu_dai)
649{
650 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
651 struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
650 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
651 struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0));
652 struct regmap *regmap = spdif_priv->regmap;
653 u32 scr, mask;
654
655 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
656 scr = 0;
657 mask = SCR_TXFIFO_AUTOSYNC_MASK | SCR_TXFIFO_CTRL_MASK |
658 SCR_TXSEL_MASK | SCR_USRC_SEL_MASK |
659 SCR_TXFIFO_FSEL_MASK;

--- 36 unchanged lines hidden (view full) ---

696 return ret;
697
698 return 0;
699}
700static int fsl_spdif_hw_params(struct snd_pcm_substream *substream,
701 struct snd_pcm_hw_params *params,
702 struct snd_soc_dai *dai)
703{
652 struct regmap *regmap = spdif_priv->regmap;
653 u32 scr, mask;
654
655 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
656 scr = 0;
657 mask = SCR_TXFIFO_AUTOSYNC_MASK | SCR_TXFIFO_CTRL_MASK |
658 SCR_TXSEL_MASK | SCR_USRC_SEL_MASK |
659 SCR_TXFIFO_FSEL_MASK;

--- 36 unchanged lines hidden (view full) ---

696 return ret;
697
698 return 0;
699}
700static int fsl_spdif_hw_params(struct snd_pcm_substream *substream,
701 struct snd_pcm_hw_params *params,
702 struct snd_soc_dai *dai)
703{
704 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
705 struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
704 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
705 struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0));
706 struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
707 struct platform_device *pdev = spdif_priv->pdev;
708 u32 sample_rate = params_rate(params);
709 int ret = 0;
710
711 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
712 ret = spdif_reparent_rootclk(spdif_priv, sample_rate);
713 if (ret) {

--- 17 unchanged lines hidden (view full) ---

731 }
732
733 return ret;
734}
735
736static int fsl_spdif_trigger(struct snd_pcm_substream *substream,
737 int cmd, struct snd_soc_dai *dai)
738{
706 struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
707 struct platform_device *pdev = spdif_priv->pdev;
708 u32 sample_rate = params_rate(params);
709 int ret = 0;
710
711 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
712 ret = spdif_reparent_rootclk(spdif_priv, sample_rate);
713 if (ret) {

--- 17 unchanged lines hidden (view full) ---

731 }
732
733 return ret;
734}
735
736static int fsl_spdif_trigger(struct snd_pcm_substream *substream,
737 int cmd, struct snd_soc_dai *dai)
738{
739 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
740 struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
739 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
740 struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0));
741 struct regmap *regmap = spdif_priv->regmap;
742 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
743 u32 intr = SIE_INTR_FOR(tx);
744 u32 dmaen = SCR_DMA_xX_EN(tx);
745
746 switch (cmd) {
747 case SNDRV_PCM_TRIGGER_START:
748 case SNDRV_PCM_TRIGGER_RESUME:

--- 1031 unchanged lines hidden --- 		741 struct regmap *regmap = spdif_priv->regmap;
742 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
743 u32 intr = SIE_INTR_FOR(tx);
744 u32 dmaen = SCR_DMA_xX_EN(tx);
745
746 switch (cmd) {
747 case SNDRV_PCM_TRIGGER_START:
748 case SNDRV_PCM_TRIGGER_RESUME:

--- 1031 unchanged lines hidden ---