From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- sound/soc/pxa/pxa2xx-ac97.c | 306 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 306 insertions(+) create mode 100644 sound/soc/pxa/pxa2xx-ac97.c (limited to 'sound/soc/pxa/pxa2xx-ac97.c') diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c new file mode 100644 index 0000000000..e73bd62c03 --- /dev/null +++ b/sound/soc/pxa/pxa2xx-ac97.c @@ -0,0 +1,306 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/sound/pxa2xx-ac97.c -- AC97 support for the Intel PXA2xx chip. + * + * Author: Nicolas Pitre + * Created: Dec 02, 2004 + * Copyright: MontaVista Software Inc. + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#include + +#define PCDR 0x0040 /* PCM FIFO Data Register */ +#define MODR 0x0140 /* Modem FIFO Data Register */ +#define MCDR 0x0060 /* Mic-in FIFO Data Register */ + +static void pxa2xx_ac97_warm_reset(struct ac97_controller *adrv) +{ + pxa2xx_ac97_try_warm_reset(); + + pxa2xx_ac97_finish_reset(); +} + +static void pxa2xx_ac97_cold_reset(struct ac97_controller *adrv) +{ + pxa2xx_ac97_try_cold_reset(); + + pxa2xx_ac97_finish_reset(); +} + +static int pxa2xx_ac97_read_actrl(struct ac97_controller *adrv, int slot, + unsigned short reg) +{ + return pxa2xx_ac97_read(slot, reg); +} + +static int pxa2xx_ac97_write_actrl(struct ac97_controller *adrv, int slot, + unsigned short reg, unsigned short val) +{ + return pxa2xx_ac97_write(slot, reg, val); +} + +static struct ac97_controller_ops pxa2xx_ac97_ops = { + .read = pxa2xx_ac97_read_actrl, + .write = pxa2xx_ac97_write_actrl, + .warm_reset = pxa2xx_ac97_warm_reset, + .reset = pxa2xx_ac97_cold_reset, +}; + +static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_in = { + .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES, + .chan_name = "pcm_pcm_stereo_in", + .maxburst = 32, +}; + +static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_out = { + .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES, + .chan_name = "pcm_pcm_stereo_out", + .maxburst = 32, +}; + +static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_out = { + .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES, + .chan_name = "pcm_aux_mono_out", + .maxburst = 16, +}; + +static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_in = { + .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES, + .chan_name = "pcm_aux_mono_in", + .maxburst = 16, +}; + +static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_mic_mono_in = { + .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES, + .chan_name = "pcm_aux_mic_mono", + .maxburst = 16, +}; + +static int pxa2xx_ac97_hifi_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *cpu_dai) +{ + struct snd_dmaengine_dai_dma_data *dma_data; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + dma_data = &pxa2xx_ac97_pcm_stereo_out; + else + dma_data = &pxa2xx_ac97_pcm_stereo_in; + + snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data); + + return 0; +} + +static int pxa2xx_ac97_aux_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *cpu_dai) +{ + struct snd_dmaengine_dai_dma_data *dma_data; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + dma_data = &pxa2xx_ac97_pcm_aux_mono_out; + else + dma_data = &pxa2xx_ac97_pcm_aux_mono_in; + + snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data); + + return 0; +} + +static int pxa2xx_ac97_mic_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *cpu_dai) +{ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + return -ENODEV; + snd_soc_dai_set_dma_data(cpu_dai, substream, + &pxa2xx_ac97_pcm_mic_mono_in); + + return 0; +} + +#define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \ + SNDRV_PCM_RATE_48000) + +static const struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = { + .startup = pxa2xx_ac97_hifi_startup, +}; + +static const struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = { + .startup = pxa2xx_ac97_aux_startup, +}; + +static const struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = { + .startup = pxa2xx_ac97_mic_startup, +}; + +/* + * There is only 1 physical AC97 interface for pxa2xx, but it + * has extra fifo's that can be used for aux DACs and ADCs. + */ +static struct snd_soc_dai_driver pxa_ac97_dai_driver[] = { +{ + .name = "pxa2xx-ac97", + .playback = { + .stream_name = "AC97 Playback", + .channels_min = 2, + .channels_max = 2, + .rates = PXA2XX_AC97_RATES, + .formats = SNDRV_PCM_FMTBIT_S16_LE,}, + .capture = { + .stream_name = "AC97 Capture", + .channels_min = 2, + .channels_max = 2, + .rates = PXA2XX_AC97_RATES, + .formats = SNDRV_PCM_FMTBIT_S16_LE,}, + .ops = &pxa_ac97_hifi_dai_ops, +}, +{ + .name = "pxa2xx-ac97-aux", + .playback = { + .stream_name = "AC97 Aux Playback", + .channels_min = 1, + .channels_max = 1, + .rates = PXA2XX_AC97_RATES, + .formats = SNDRV_PCM_FMTBIT_S16_LE,}, + .capture = { + .stream_name = "AC97 Aux Capture", + .channels_min = 1, + .channels_max = 1, + .rates = PXA2XX_AC97_RATES, + .formats = SNDRV_PCM_FMTBIT_S16_LE,}, + .ops = &pxa_ac97_aux_dai_ops, +}, +{ + .name = "pxa2xx-ac97-mic", + .capture = { + .stream_name = "AC97 Mic Capture", + .channels_min = 1, + .channels_max = 1, + .rates = PXA2XX_AC97_RATES, + .formats = SNDRV_PCM_FMTBIT_S16_LE,}, + .ops = &pxa_ac97_mic_dai_ops, +}, +}; + +static const struct snd_soc_component_driver pxa_ac97_component = { + .name = "pxa-ac97", + .pcm_construct = pxa2xx_soc_pcm_new, + .open = pxa2xx_soc_pcm_open, + .close = pxa2xx_soc_pcm_close, + .hw_params = pxa2xx_soc_pcm_hw_params, + .prepare = pxa2xx_soc_pcm_prepare, + .trigger = pxa2xx_soc_pcm_trigger, + .pointer = pxa2xx_soc_pcm_pointer, +}; + +#ifdef CONFIG_OF +static const struct of_device_id pxa2xx_ac97_dt_ids[] = { + { .compatible = "marvell,pxa250-ac97", }, + { .compatible = "marvell,pxa270-ac97", }, + { .compatible = "marvell,pxa300-ac97", }, + { } +}; +MODULE_DEVICE_TABLE(of, pxa2xx_ac97_dt_ids); + +#endif + +static int pxa2xx_ac97_dev_probe(struct platform_device *pdev) +{ + int ret; + struct ac97_controller *ctrl; + pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data; + struct resource *regs; + void **codecs_pdata; + + if (pdev->id != -1) { + dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n"); + return -ENXIO; + } + + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!regs) + return -ENXIO; + + pxa2xx_ac97_pcm_stereo_in.addr = regs->start + PCDR; + pxa2xx_ac97_pcm_stereo_out.addr = regs->start + PCDR; + pxa2xx_ac97_pcm_aux_mono_out.addr = regs->start + MODR; + pxa2xx_ac97_pcm_aux_mono_in.addr = regs->start + MODR; + pxa2xx_ac97_pcm_mic_mono_in.addr = regs->start + MCDR; + + ret = pxa2xx_ac97_hw_probe(pdev); + if (ret) { + dev_err(&pdev->dev, "PXA2xx AC97 hw probe error (%d)\n", ret); + return ret; + } + + codecs_pdata = pdata ? pdata->codec_pdata : NULL; + ctrl = snd_ac97_controller_register(&pxa2xx_ac97_ops, &pdev->dev, + AC97_SLOTS_AVAILABLE_ALL, + codecs_pdata); + if (IS_ERR(ctrl)) + return PTR_ERR(ctrl); + + platform_set_drvdata(pdev, ctrl); + /* Punt most of the init to the SoC probe; we may need the machine + * driver to do interesting things with the clocking to get us up + * and running. + */ + return devm_snd_soc_register_component(&pdev->dev, &pxa_ac97_component, + pxa_ac97_dai_driver, ARRAY_SIZE(pxa_ac97_dai_driver)); +} + +static void pxa2xx_ac97_dev_remove(struct platform_device *pdev) +{ + struct ac97_controller *ctrl = platform_get_drvdata(pdev); + + snd_ac97_controller_unregister(ctrl); + pxa2xx_ac97_hw_remove(pdev); +} + +#ifdef CONFIG_PM_SLEEP +static int pxa2xx_ac97_dev_suspend(struct device *dev) +{ + return pxa2xx_ac97_hw_suspend(); +} + +static int pxa2xx_ac97_dev_resume(struct device *dev) +{ + return pxa2xx_ac97_hw_resume(); +} + +static SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm_ops, + pxa2xx_ac97_dev_suspend, pxa2xx_ac97_dev_resume); +#endif + +static struct platform_driver pxa2xx_ac97_driver = { + .probe = pxa2xx_ac97_dev_probe, + .remove_new = pxa2xx_ac97_dev_remove, + .driver = { + .name = "pxa2xx-ac97", +#ifdef CONFIG_PM_SLEEP + .pm = &pxa2xx_ac97_pm_ops, +#endif + .of_match_table = of_match_ptr(pxa2xx_ac97_dt_ids), + }, +}; + +module_platform_driver(pxa2xx_ac97_driver); + +MODULE_AUTHOR("Nicolas Pitre"); +MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:pxa2xx-ac97"); -- cgit v1.2.3