diff options
Diffstat (limited to 'sound/soc')
89 files changed, 3197 insertions, 935 deletions
diff --git a/sound/soc/atmel/Kconfig b/sound/soc/atmel/Kconfig index 22aec9a1e9a4..4a56f3dfba51 100644 --- a/sound/soc/atmel/Kconfig +++ b/sound/soc/atmel/Kconfig @@ -78,4 +78,14 @@ config SND_ATMEL_SOC_PDMIC help Say Y if you want to add support for Atmel ASoC driver for boards using PDMIC. + +config SND_ATMEL_SOC_TSE850_PCM5142 + tristate "ASoC driver for the Axentia TSE-850" + depends on ARCH_AT91 && OF + depends on ATMEL_SSC && I2C + select SND_ATMEL_SOC_SSC_DMA + select SND_SOC_PCM512x_I2C + help + Say Y if you want to add support for the ASoC driver for the + Axentia TSE-850 with a PCM5142 codec. endif diff --git a/sound/soc/atmel/Makefile b/sound/soc/atmel/Makefile index a2b127bd9c87..67e10cbd4ed7 100644 --- a/sound/soc/atmel/Makefile +++ b/sound/soc/atmel/Makefile @@ -13,9 +13,11 @@ snd-atmel-soc-wm8904-objs := atmel_wm8904.o snd-soc-sam9x5-wm8731-objs := sam9x5_wm8731.o snd-atmel-soc-classd-objs := atmel-classd.o snd-atmel-soc-pdmic-objs := atmel-pdmic.o +snd-atmel-soc-tse850-pcm5142-objs := tse850-pcm5142.o obj-$(CONFIG_SND_AT91_SOC_SAM9G20_WM8731) += snd-soc-sam9g20-wm8731.o obj-$(CONFIG_SND_ATMEL_SOC_WM8904) += snd-atmel-soc-wm8904.o obj-$(CONFIG_SND_AT91_SOC_SAM9X5_WM8731) += snd-soc-sam9x5-wm8731.o obj-$(CONFIG_SND_ATMEL_SOC_CLASSD) += snd-atmel-soc-classd.o obj-$(CONFIG_SND_ATMEL_SOC_PDMIC) += snd-atmel-soc-pdmic.o +obj-$(CONFIG_SND_ATMEL_SOC_TSE850_PCM5142) += snd-atmel-soc-tse850-pcm5142.o diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c index 16e459aedffe..a1e2c5682dcd 100644 --- a/sound/soc/atmel/atmel_ssc_dai.c +++ b/sound/soc/atmel/atmel_ssc_dai.c @@ -380,6 +380,7 @@ static void atmel_ssc_shutdown(struct snd_pcm_substream *substream, ssc_writel(ssc_p->ssc->regs, CR, SSC_BIT(CR_SWRST)); /* Clear the SSC dividers */ ssc_p->cmr_div = ssc_p->tcmr_period = ssc_p->rcmr_period = 0; + ssc_p->forced_divider = 0; } spin_unlock_irq(&ssc_p->lock); @@ -426,14 +427,17 @@ static int atmel_ssc_set_dai_clkdiv(struct snd_soc_dai *cpu_dai, else if (div != ssc_p->cmr_div) return -EBUSY; + ssc_p->forced_divider |= BIT(ATMEL_SSC_CMR_DIV); break; case ATMEL_SSC_TCMR_PERIOD: ssc_p->tcmr_period = div; + ssc_p->forced_divider |= BIT(ATMEL_SSC_TCMR_PERIOD); break; case ATMEL_SSC_RCMR_PERIOD: ssc_p->rcmr_period = div; + ssc_p->forced_divider |= BIT(ATMEL_SSC_RCMR_PERIOD); break; default: @@ -443,6 +447,28 @@ static int atmel_ssc_set_dai_clkdiv(struct snd_soc_dai *cpu_dai, return 0; } +/* Is the cpu-dai master of the frame clock? */ +static int atmel_ssc_cfs(struct atmel_ssc_info *ssc_p) +{ + switch (ssc_p->daifmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFS: + case SND_SOC_DAIFMT_CBS_CFS: + return 1; + } + return 0; +} + +/* Is the cpu-dai master of the bit clock? */ +static int atmel_ssc_cbs(struct atmel_ssc_info *ssc_p) +{ + switch (ssc_p->daifmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFM: + case SND_SOC_DAIFMT_CBS_CFS: + return 1; + } + return 0; +} + /* * Configure the SSC. */ @@ -459,6 +485,9 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream, u32 tfmr, rfmr, tcmr, rcmr; int ret; int fslen, fslen_ext; + u32 cmr_div; + u32 tcmr_period; + u32 rcmr_period; /* * Currently, there is only one set of dma params for @@ -470,6 +499,46 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream, else dir = 1; + /* + * If the cpu dai should provide BCLK, but noone has provided the + * divider needed for that to work, fall back to something sensible. + */ + cmr_div = ssc_p->cmr_div; + if (!(ssc_p->forced_divider & BIT(ATMEL_SSC_CMR_DIV)) && + atmel_ssc_cbs(ssc_p)) { + int bclk_rate = snd_soc_params_to_bclk(params); + + if (bclk_rate < 0) { + dev_err(dai->dev, "unable to calculate cmr_div: %d\n", + bclk_rate); + return bclk_rate; + } + + cmr_div = DIV_ROUND_CLOSEST(ssc_p->mck_rate, 2 * bclk_rate); + } + + /* + * If the cpu dai should provide LRCLK, but noone has provided the + * dividers needed for that to work, fall back to something sensible. + */ + tcmr_period = ssc_p->tcmr_period; + rcmr_period = ssc_p->rcmr_period; + if (atmel_ssc_cfs(ssc_p)) { + int frame_size = snd_soc_params_to_frame_size(params); + + if (frame_size < 0) { + dev_err(dai->dev, + "unable to calculate tx/rx cmr_period: %d\n", + frame_size); + return frame_size; + } + + if (!(ssc_p->forced_divider & BIT(ATMEL_SSC_TCMR_PERIOD))) + tcmr_period = frame_size / 2 - 1; + if (!(ssc_p->forced_divider & BIT(ATMEL_SSC_RCMR_PERIOD))) + rcmr_period = frame_size / 2 - 1; + } + dma_params = ssc_p->dma_params[dir]; channels = params_channels(params); @@ -524,7 +593,7 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream, fslen_ext = (bits - 1) / 16; fslen = (bits - 1) % 16; - rcmr = SSC_BF(RCMR_PERIOD, ssc_p->rcmr_period) + rcmr = SSC_BF(RCMR_PERIOD, rcmr_period) | SSC_BF(RCMR_STTDLY, START_DELAY) | SSC_BF(RCMR_START, SSC_START_FALLING_RF) | SSC_BF(RCMR_CKI, SSC_CKI_RISING) @@ -540,7 +609,7 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream, | SSC_BF(RFMR_LOOP, 0) | SSC_BF(RFMR_DATLEN, (bits - 1)); - tcmr = SSC_BF(TCMR_PERIOD, ssc_p->tcmr_period) + tcmr = SSC_BF(TCMR_PERIOD, tcmr_period) | SSC_BF(TCMR_STTDLY, START_DELAY) | SSC_BF(TCMR_START, SSC_START_FALLING_RF) | SSC_BF(TCMR_CKI, SSC_CKI_FALLING) @@ -606,7 +675,7 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream, fslen_ext = (bits - 1) / 16; fslen = (bits - 1) % 16; - rcmr = SSC_BF(RCMR_PERIOD, ssc_p->rcmr_period) + rcmr = SSC_BF(RCMR_PERIOD, rcmr_period) | SSC_BF(RCMR_STTDLY, START_DELAY) | SSC_BF(RCMR_START, SSC_START_FALLING_RF) | SSC_BF(RCMR_CKI, SSC_CKI_RISING) @@ -623,7 +692,7 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream, | SSC_BF(RFMR_LOOP, 0) | SSC_BF(RFMR_DATLEN, (bits - 1)); - tcmr = SSC_BF(TCMR_PERIOD, ssc_p->tcmr_period) + tcmr = SSC_BF(TCMR_PERIOD, tcmr_period) | SSC_BF(TCMR_STTDLY, START_DELAY) | SSC_BF(TCMR_START, SSC_START_FALLING_RF) | SSC_BF(TCMR_CKI, SSC_CKI_FALLING) @@ -650,7 +719,7 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream, * MCK divider, and the BCLK signal is output * on the SSC TK line. */ - rcmr = SSC_BF(RCMR_PERIOD, ssc_p->rcmr_period) + rcmr = SSC_BF(RCMR_PERIOD, rcmr_period) | SSC_BF(RCMR_STTDLY, 1) | SSC_BF(RCMR_START, SSC_START_RISING_RF) | SSC_BF(RCMR_CKI, SSC_CKI_RISING) @@ -665,7 +734,7 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream, | SSC_BF(RFMR_LOOP, 0) | SSC_BF(RFMR_DATLEN, (bits - 1)); - tcmr = SSC_BF(TCMR_PERIOD, ssc_p->tcmr_period) + tcmr = SSC_BF(TCMR_PERIOD, tcmr_period) | SSC_BF(TCMR_STTDLY, 1) | SSC_BF(TCMR_START, SSC_START_RISING_RF) | SSC_BF(TCMR_CKI, SSC_CKI_FALLING) @@ -760,7 +829,7 @@ static int atmel_ssc_hw_params(struct snd_pcm_substream *substream, } /* set SSC clock mode register */ - ssc_writel(ssc_p->ssc->regs, CMR, ssc_p->cmr_div); + ssc_writel(ssc_p->ssc->regs, CMR, cmr_div); /* set receive clock mode and format */ ssc_writel(ssc_p->ssc->regs, RCMR, rcmr); diff --git a/sound/soc/atmel/atmel_ssc_dai.h b/sound/soc/atmel/atmel_ssc_dai.h index 80b153857a88..75194f582131 100644 --- a/sound/soc/atmel/atmel_ssc_dai.h +++ b/sound/soc/atmel/atmel_ssc_dai.h @@ -113,6 +113,7 @@ struct atmel_ssc_info { unsigned short cmr_div; unsigned short tcmr_period; unsigned short rcmr_period; + unsigned int forced_divider; struct atmel_pcm_dma_params *dma_params[2]; struct atmel_ssc_state ssc_state; unsigned long mck_rate; diff --git a/sound/soc/atmel/atmel_wm8904.c b/sound/soc/atmel/atmel_wm8904.c index fdd28ed3e0b9..fbc10f61eb55 100644 --- a/sound/soc/atmel/atmel_wm8904.c +++ b/sound/soc/atmel/atmel_wm8904.c @@ -53,7 +53,7 @@ static int atmel_asoc_wm8904_hw_params(struct snd_pcm_substream *substream, return 0; } -static struct snd_soc_ops atmel_asoc_wm8904_ops = { +static const struct snd_soc_ops atmel_asoc_wm8904_ops = { .hw_params = atmel_asoc_wm8904_hw_params, }; diff --git a/sound/soc/atmel/tse850-pcm5142.c b/sound/soc/atmel/tse850-pcm5142.c new file mode 100644 index 000000000000..ac6a814c8ecf --- /dev/null +++ b/sound/soc/atmel/tse850-pcm5142.c @@ -0,0 +1,472 @@ +/* + * TSE-850 audio - ASoC driver for the Axentia TSE-850 with a PCM5142 codec + * + * Copyright (C) 2016 Axentia Technologies AB + * + * Author: Peter Rosin <peda@axentia.se> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* + * loop1 relays + * IN1 +---o +------------+ o---+ OUT1 + * \ / + * + + + * | / | + * +--o +--. | + * | add | | + * | V | + * | .---. | + * DAC +----------->|Sum|---+ + * | '---' | + * | | + * + + + * + * IN2 +---o--+------------+--o---+ OUT2 + * loop2 relays + * + * The 'loop1' gpio pin controlls two relays, which are either in loop + * position, meaning that input and output are directly connected, or + * they are in mixer position, meaning that the signal is passed through + * the 'Sum' mixer. Similarly for 'loop2'. + * + * In the above, the 'loop1' relays are inactive, thus feeding IN1 to the + * mixer (if 'add' is active) and feeding the mixer output to OUT1. The + * 'loop2' relays are active, short-cutting the TSE-850 from channel 2. + * IN1, IN2, OUT1 and OUT2 are TSE-850 connectors and DAC is the PCB name + * of the (filtered) output from the PCM5142 codec. + */ + +#include <linux/clk.h> +#include <linux/gpio.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/of_gpio.h> +#include <linux/regulator/consumer.h> + +#include <sound/soc.h> +#include <sound/pcm_params.h> + +#include "atmel_ssc_dai.h" + +struct tse850_priv { + int ssc_id; + + struct gpio_desc *add; + struct gpio_desc *loop1; + struct gpio_desc *loop2; + + struct regulator *ana; + + int add_cache; + int loop1_cache; + int loop2_cache; +}; + +static int tse850_get_mux1(struct snd_kcontrol *kctrl, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kctrl); + struct snd_soc_card *card = dapm->card; + struct tse850_priv *tse850 = snd_soc_card_get_drvdata(card); + + ucontrol->value.enumerated.item[0] = tse850->loop1_cache; |