Add a machine driver to support the EVAL-ADAU1X81 board connected to a Analog Devices BF5XX evaluation board.
Signed-off-by: Lars-Peter Clausen lars@metafoo.de --- sound/soc/blackfin/Kconfig | 13 +++ sound/soc/blackfin/Makefile | 2 + sound/soc/blackfin/bfin-eval-adau1x81.c | 139 ++++++++++++++++++++++++++++++++ 3 files changed, 154 insertions(+) create mode 100644 sound/soc/blackfin/bfin-eval-adau1x81.c
diff --git a/sound/soc/blackfin/Kconfig b/sound/soc/blackfin/Kconfig index e5035d1..06cb784 100644 --- a/sound/soc/blackfin/Kconfig +++ b/sound/soc/blackfin/Kconfig @@ -56,6 +56,19 @@ config SND_SOC_BFIN_EVAL_ADAU1X61 Note: This driver assumes that the ADAU1X61 is connected to the first SPORT port on the BF5XX board.
+config SND_SOC_BFIN_EVAL_ADAU1X81 + tristate "Support for the EVAL-ADAU1X81 boards on Blackfin eval boards" + depends on SND_BF5XX_I2S && I2C + select SND_BF5XX_SOC_I2S + select SND_SOC_ADAU1781 + help + Say Y if you want to add support for the Analog Devices EVAL-ADAU1X81 + board connected to one of the Blackfin evaluation boards like the + BF5XX-STAMP or BF5XX-EZKIT. + + Note: This driver assumes that the ADAU1X81 is connected to the + first SPORT port on the BF5XX board. + config SND_SOC_BFIN_EVAL_ADAV80X tristate "Support for the EVAL-ADAV80X boards on Blackfin eval boards" depends on SND_BF5XX_I2S && (SPI_MASTER || I2C) diff --git a/sound/soc/blackfin/Makefile b/sound/soc/blackfin/Makefile index e26b7a9..16df746 100644 --- a/sound/soc/blackfin/Makefile +++ b/sound/soc/blackfin/Makefile @@ -27,6 +27,7 @@ snd-ad73311-objs := bf5xx-ad73311.o snd-ad193x-objs := bf5xx-ad193x.o snd-soc-bfin-eval-adau1373-objs := bfin-eval-adau1373.o snd-soc-bfin-eval-adau1x61-objs := bfin-eval-adau1x61.o +snd-soc-bfin-eval-adau1x81-objs := bfin-eval-adau1x81.o snd-soc-bfin-eval-adau1701-objs := bfin-eval-adau1701.o snd-soc-bfin-eval-adav80x-objs := bfin-eval-adav80x.o
@@ -37,5 +38,6 @@ obj-$(CONFIG_SND_BF5XX_SOC_AD73311) += snd-ad73311.o obj-$(CONFIG_SND_BF5XX_SOC_AD193X) += snd-ad193x.o obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAU1373) += snd-soc-bfin-eval-adau1373.o obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAU1X61) += snd-soc-bfin-eval-adau1x61.o +obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAU1X81) += snd-soc-bfin-eval-adau1x81.o obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAU1701) += snd-soc-bfin-eval-adau1701.o obj-$(CONFIG_SND_SOC_BFIN_EVAL_ADAV80X) += snd-soc-bfin-eval-adav80x.o diff --git a/sound/soc/blackfin/bfin-eval-adau1x81.c b/sound/soc/blackfin/bfin-eval-adau1x81.c new file mode 100644 index 0000000..74e3459 --- /dev/null +++ b/sound/soc/blackfin/bfin-eval-adau1x81.c @@ -0,0 +1,139 @@ +/* + * Machine driver for EVAL-ADAU1x81 on Analog Devices bfin + * evaluation boards. + * + * Copyright 2011-2013 Analog Devices Inc. + * Author: Lars-Peter Clausen lars@metafoo.de + * + * Licensed under the GPL-2 or later. + */ + +#include <linux/module.h> +#include <linux/device.h> +#include <linux/slab.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/pcm_params.h> + +#include "../codecs/adau17x1.h" + +static const struct snd_soc_dapm_widget bfin_eval_adau1x81_dapm_widgets[] = { + SND_SOC_DAPM_LINE("Stereo In", NULL), + SND_SOC_DAPM_LINE("Beep", NULL), + + SND_SOC_DAPM_SPK("Speaker", NULL), + SND_SOC_DAPM_HP("Headphone", NULL), +}; + +static const struct snd_soc_dapm_route bfin_eval_adau1x81_dapm_routes[] = { + { "BEEP", NULL, "Beep" }, + { "LMIC", NULL, "Stereo In" }, + { "LMIC", NULL, "Stereo In" }, + + { "Headphone", NULL, "AOUTL" }, + { "Headphone", NULL, "AOUTR" }, + { "Speaker", NULL, "SP" }, +}; + +static int bfin_eval_adau1x81_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; + int pll_rate; + int ret; + + switch (params_rate(params)) { + case 48000: + case 8000: + case 12000: + case 16000: + case 24000: + case 32000: + case 96000: + pll_rate = 48000 * 1024; + break; + case 44100: + case 7350: + case 11025: + case 14700: + case 22050: + case 29400: + case 88200: + pll_rate = 44100 * 1024; + break; + default: + return -EINVAL; + } + + ret = snd_soc_dai_set_pll(codec_dai, ADAU17X1_PLL, + ADAU17X1_PLL_SRC_MCLK, 12288000, pll_rate); + if (ret) + return ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, ADAU17X1_CLK_SRC_PLL, pll_rate, + SND_SOC_CLOCK_IN); + + return ret; +} + +static const struct snd_soc_ops bfin_eval_adau1x81_ops = { + .hw_params = bfin_eval_adau1x81_hw_params, +}; + +static struct snd_soc_dai_link bfin_eval_adau1x81_dai = { + .name = "adau1x81", + .stream_name = "adau1x81", + .cpu_dai_name = "bfin-i2s.0", + .codec_dai_name = "adau-hifi", + .platform_name = "bfin-i2s-pcm-audio", + .codec_name = "adau1781.0-0038", + .ops = &bfin_eval_adau1x81_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBM_CFM, +}; + +static struct snd_soc_card bfin_eval_adau1x81 = { + .name = "bfin-eval-adau1x81", + .driver_name = "eval-adau1x81", + .dai_link = &bfin_eval_adau1x81_dai, + .num_links = 1, + + .dapm_widgets = bfin_eval_adau1x81_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(bfin_eval_adau1x81_dapm_widgets), + .dapm_routes = bfin_eval_adau1x81_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(bfin_eval_adau1x81_dapm_routes), +}; + +static int bfin_eval_adau1x81_probe(struct platform_device *pdev) +{ + bfin_eval_adau1x81.dev = &pdev->dev; + + return snd_soc_register_card(&bfin_eval_adau1x81); +} + +static int bfin_eval_adau1x81_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + + return 0; +} + +static struct platform_driver bfin_eval_adau1x81_driver = { + .driver = { + .name = "bfin-eval-adau1x81", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + }, + .probe = bfin_eval_adau1x81_probe, + .remove = bfin_eval_adau1x81_remove, +}; +module_platform_driver(bfin_eval_adau1x81_driver); + +MODULE_AUTHOR("Lars-Peter Clausen lars@metafoo.de"); +MODULE_DESCRIPTION("ALSA SoC bfin adau1x81 driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:bfin-eval-adau1x81");