MIPS/SOUND: Alchemy: DB1200 AC97+I2S audio support.
Machine driver for DB1200 AC97 and I2S audio systems, intended as a proper reference asoc machine for Alchemy-based systems. AC97/I2S can be selected at boot time by setting switch S6.7. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Cc: alsa-devel@alsa-project.org Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>hifive-unleashed-5.1
Manuel Lauss
Ralf Baechle
parent
63323ec54a
commit
05ae323180
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@ -399,12 +399,43 @@ static struct platform_device db1200_spi_dev = {
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.resource = au1200_psc0_res,
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};
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static struct resource au1200_psc1_res[] = {
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[0] = {
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.start = PSC1_PHYS_ADDR,
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.end = PSC1_PHYS_ADDR + 0x000fffff,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = AU1200_PSC1_INT,
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.end = AU1200_PSC1_INT,
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.flags = IORESOURCE_IRQ,
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},
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[2] = {
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.start = DSCR_CMD0_PSC1_TX,
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.end = DSCR_CMD0_PSC1_TX,
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.flags = IORESOURCE_DMA,
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},
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[3] = {
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.start = DSCR_CMD0_PSC1_RX,
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.end = DSCR_CMD0_PSC1_RX,
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.flags = IORESOURCE_DMA,
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},
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};
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static struct platform_device db1200_audio_dev = {
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/* name assigned later based on switch setting */
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.id = 1, /* PSC ID */
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.num_resources = ARRAY_SIZE(au1200_psc1_res),
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.resource = au1200_psc1_res,
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};
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static struct platform_device *db1200_devs[] __initdata = {
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NULL, /* PSC0, selected by S6.8 */
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&db1200_ide_dev,
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&db1200_eth_dev,
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&db1200_rtc_dev,
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&db1200_nand_dev,
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&db1200_audio_dev,
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};
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static int __init db1200_dev_init(void)
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@ -419,6 +450,7 @@ static int __init db1200_dev_init(void)
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ARRAY_SIZE(db1200_i2c_devs));
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/* SWITCHES: S6.8 I2C/SPI selector (OFF=I2C ON=SPI)
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* S6.7 AC97/I2S selector (OFF=AC97 ON=I2S)
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*/
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/* NOTE: GPIO215 controls OTG VBUS supply. In SPI mode however
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@ -456,6 +488,25 @@ static int __init db1200_dev_init(void)
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__raw_writel(pfc, (void __iomem *)SYS_PINFUNC);
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wmb();
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/* Audio: DIP7 selects I2S(0)/AC97(1), but need I2C for I2S!
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* so: DIP7=1 || DIP8=0 => AC97, DIP7=0 && DIP8=1 => I2S
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*/
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sw &= BCSR_SWITCHES_DIP_8 | BCSR_SWITCHES_DIP_7;
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if (sw == BCSR_SWITCHES_DIP_8) {
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bcsr_mod(BCSR_RESETS, 0, BCSR_RESETS_PSC1MUX);
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db1200_audio_dev.name = "au1xpsc_i2s";
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printk(KERN_INFO " S6.7 ON : PSC1 mode I2S\n");
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} else {
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bcsr_mod(BCSR_RESETS, BCSR_RESETS_PSC1MUX, 0);
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db1200_audio_dev.name = "au1xpsc_ac97";
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printk(KERN_INFO " S6.7 OFF: PSC1 mode AC97\n");
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}
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/* Audio PSC clock is supplied externally. (FIXME: platdata!!) */
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__raw_writel(PSC_SEL_CLK_SERCLK,
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(void __iomem *)KSEG1ADDR(PSC1_PHYS_ADDR) + PSC_SEL_OFFSET);
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wmb();
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db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS,
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PCMCIA_ATTR_PSEUDO_PHYS + 0x00040000 - 1,
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PCMCIA_MEM_PSEUDO_PHYS,
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@ -22,11 +22,13 @@ config SND_SOC_AU1XPSC_AC97
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##
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## Boards
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##
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config SND_SOC_SAMPLE_PSC_AC97
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tristate "Sample Au12x0/Au1550 PSC AC97 sound machine"
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config SND_SOC_DB1200
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tristate "DB1200 AC97+I2S audio support"
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depends on SND_SOC_AU1XPSC
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select SND_SOC_AU1XPSC_AC97
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select SND_SOC_AC97_CODEC
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select SND_SOC_AU1XPSC_I2S
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select SND_SOC_WM8731
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help
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This is a sample AC97 sound machine for use in Au12x0/Au1550
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based systems which have audio on PSC1 (e.g. Db1200 demoboard).
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Select this option to enable audio (AC97 or I2S) on the
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Alchemy/AMD/RMI DB1200 demoboard.
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@ -8,6 +8,6 @@ obj-$(CONFIG_SND_SOC_AU1XPSC_I2S) += snd-soc-au1xpsc-i2s.o
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obj-$(CONFIG_SND_SOC_AU1XPSC_AC97) += snd-soc-au1xpsc-ac97.o
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# Boards
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snd-soc-sample-ac97-objs := sample-ac97.o
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snd-soc-db1200-objs := db1200.o
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obj-$(CONFIG_SND_SOC_SAMPLE_PSC_AC97) += snd-soc-sample-ac97.o
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obj-$(CONFIG_SND_SOC_DB1200) += snd-soc-db1200.o
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@ -0,0 +1,141 @@
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/*
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* DB1200 ASoC audio fabric support code.
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*
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* (c) 2008-9 Manuel Lauss <manuel.lauss@gmail.com>
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*
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/timer.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <asm/mach-au1x00/au1000.h>
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#include <asm/mach-au1x00/au1xxx_psc.h>
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#include <asm/mach-au1x00/au1xxx_dbdma.h>
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#include <asm/mach-db1x00/bcsr.h>
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#include "../codecs/ac97.h"
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#include "../codecs/wm8731.h"
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#include "psc.h"
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/*------------------------- AC97 PART ---------------------------*/
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static struct snd_soc_dai_link db1200_ac97_dai = {
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.name = "AC97",
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.stream_name = "AC97 HiFi",
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.cpu_dai = &au1xpsc_ac97_dai,
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.codec_dai = &ac97_dai,
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};
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static struct snd_soc_card db1200_ac97_machine = {
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.name = "DB1200_AC97",
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.dai_link = &db1200_ac97_dai,
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.num_links = 1,
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.platform = &au1xpsc_soc_platform,
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};
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static struct snd_soc_device db1200_ac97_devdata = {
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.card = &db1200_ac97_machine,
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.codec_dev = &soc_codec_dev_ac97,
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};
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/*------------------------- I2S PART ---------------------------*/
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static int db1200_i2s_startup(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
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struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
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int ret;
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/* WM8731 has its own 12MHz crystal */
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snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK,
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12000000, SND_SOC_CLOCK_IN);
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/* codec is bitclock and lrclk master */
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ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_LEFT_J |
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SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
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if (ret < 0)
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goto out;
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ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_LEFT_J |
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SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
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if (ret < 0)
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goto out;
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ret = 0;
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out:
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return ret;
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}
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static struct snd_soc_ops db1200_i2s_wm8731_ops = {
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.startup = db1200_i2s_startup,
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};
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static struct snd_soc_dai_link db1200_i2s_dai = {
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.name = "WM8731",
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.stream_name = "WM8731 PCM",
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.cpu_dai = &au1xpsc_i2s_dai,
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.codec_dai = &wm8731_dai,
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.ops = &db1200_i2s_wm8731_ops,
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};
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static struct snd_soc_card db1200_i2s_machine = {
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.name = "DB1200_I2S",
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.dai_link = &db1200_i2s_dai,
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.num_links = 1,
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.platform = &au1xpsc_soc_platform,
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};
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static struct snd_soc_device db1200_i2s_devdata = {
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.card = &db1200_i2s_machine,
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.codec_dev = &soc_codec_dev_wm8731,
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};
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/*------------------------- COMMON PART ---------------------------*/
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static struct platform_device *db1200_asoc_dev;
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static int __init db1200_audio_load(void)
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{
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int ret;
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ret = -ENOMEM;
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db1200_asoc_dev = platform_device_alloc("soc-audio", -1);
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if (!db1200_asoc_dev)
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goto out;
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/* DB1200 board setup set PSC1MUX to preferred audio device */
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if (bcsr_read(BCSR_RESETS) & BCSR_RESETS_PSC1MUX)
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platform_set_drvdata(db1200_asoc_dev, &db1200_i2s_devdata);
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else
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platform_set_drvdata(db1200_asoc_dev, &db1200_ac97_devdata);
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db1200_ac97_devdata.dev = &db1200_asoc_dev->dev;
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db1200_i2s_devdata.dev = &db1200_asoc_dev->dev;
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ret = platform_device_add(db1200_asoc_dev);
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if (ret) {
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platform_device_put(db1200_asoc_dev);
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db1200_asoc_dev = NULL;
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}
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out:
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return ret;
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}
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static void __exit db1200_audio_unload(void)
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{
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platform_device_unregister(db1200_asoc_dev);
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}
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module_init(db1200_audio_load);
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module_exit(db1200_audio_unload);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("DB1200 ASoC audio support");
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MODULE_AUTHOR("Manuel Lauss");
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@ -1,144 +0,0 @@
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/*
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* Sample Au12x0/Au1550 PSC AC97 sound machine.
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*
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* Copyright (c) 2007-2008 Manuel Lauss <mano@roarinelk.homelinux.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms outlined in the file COPYING at the root of this
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* source archive.
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*
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* This is a very generic AC97 sound machine driver for boards which
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* have (AC97) audio at PSC1 (e.g. DB1200 demoboards).
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/timer.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <asm/mach-au1x00/au1000.h>
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#include <asm/mach-au1x00/au1xxx_psc.h>
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#include <asm/mach-au1x00/au1xxx_dbdma.h>
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#include "../codecs/ac97.h"
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#include "psc.h"
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static int au1xpsc_sample_ac97_init(struct snd_soc_codec *codec)
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{
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snd_soc_dapm_sync(codec);
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return 0;
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}
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static struct snd_soc_dai_link au1xpsc_sample_ac97_dai = {
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.name = "AC97",
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.stream_name = "AC97 HiFi",
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.cpu_dai = &au1xpsc_ac97_dai, /* see psc-ac97.c */
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.codec_dai = &ac97_dai, /* see codecs/ac97.c */
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.init = au1xpsc_sample_ac97_init,
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.ops = NULL,
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};
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static struct snd_soc_card au1xpsc_sample_ac97_machine = {
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.name = "Au1xxx PSC AC97 Audio",
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.dai_link = &au1xpsc_sample_ac97_dai,
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.num_links = 1,
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};
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static struct snd_soc_device au1xpsc_sample_ac97_devdata = {
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.card = &au1xpsc_sample_ac97_machine,
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.platform = &au1xpsc_soc_platform, /* see dbdma2.c */
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.codec_dev = &soc_codec_dev_ac97,
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};
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static struct resource au1xpsc_psc1_res[] = {
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[0] = {
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.start = CPHYSADDR(PSC1_BASE_ADDR),
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.end = CPHYSADDR(PSC1_BASE_ADDR) + 0x000fffff,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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#ifdef CONFIG_SOC_AU1200
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.start = AU1200_PSC1_INT,
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.end = AU1200_PSC1_INT,
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#elif defined(CONFIG_SOC_AU1550)
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.start = AU1550_PSC1_INT,
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.end = AU1550_PSC1_INT,
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#endif
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.flags = IORESOURCE_IRQ,
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},
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[2] = {
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.start = DSCR_CMD0_PSC1_TX,
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.end = DSCR_CMD0_PSC1_TX,
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.flags = IORESOURCE_DMA,
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},
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[3] = {
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.start = DSCR_CMD0_PSC1_RX,
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.end = DSCR_CMD0_PSC1_RX,
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.flags = IORESOURCE_DMA,
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},
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};
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static struct platform_device *au1xpsc_sample_ac97_dev;
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static int __init au1xpsc_sample_ac97_load(void)
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{
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int ret;
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#ifdef CONFIG_SOC_AU1200
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unsigned long io;
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/* modify sys_pinfunc for AC97 on PSC1 */
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io = au_readl(SYS_PINFUNC);
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io |= SYS_PINFUNC_P1C;
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io &= ~(SYS_PINFUNC_P1A | SYS_PINFUNC_P1B);
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au_writel(io, SYS_PINFUNC);
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au_sync();
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#endif
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ret = -ENOMEM;
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/* setup PSC clock source for AC97 part: external clock provided
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* by codec. The psc-ac97.c driver depends on this setting!
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*/
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au_writel(PSC_SEL_CLK_SERCLK, PSC1_BASE_ADDR + PSC_SEL_OFFSET);
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au_sync();
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au1xpsc_sample_ac97_dev = platform_device_alloc("soc-audio", -1);
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if (!au1xpsc_sample_ac97_dev)
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goto out;
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au1xpsc_sample_ac97_dev->resource =
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kmemdup(au1xpsc_psc1_res, sizeof(struct resource) *
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ARRAY_SIZE(au1xpsc_psc1_res), GFP_KERNEL);
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au1xpsc_sample_ac97_dev->num_resources = ARRAY_SIZE(au1xpsc_psc1_res);
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au1xpsc_sample_ac97_dev->id = 1;
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platform_set_drvdata(au1xpsc_sample_ac97_dev,
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&au1xpsc_sample_ac97_devdata);
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au1xpsc_sample_ac97_devdata.dev = &au1xpsc_sample_ac97_dev->dev;
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ret = platform_device_add(au1xpsc_sample_ac97_dev);
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if (ret) {
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platform_device_put(au1xpsc_sample_ac97_dev);
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au1xpsc_sample_ac97_dev = NULL;
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}
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out:
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return ret;
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}
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static void __exit au1xpsc_sample_ac97_exit(void)
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{
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platform_device_unregister(au1xpsc_sample_ac97_dev);
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}
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module_init(au1xpsc_sample_ac97_load);
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module_exit(au1xpsc_sample_ac97_exit);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("Au1xxx PSC sample AC97 machine");
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MODULE_AUTHOR("Manuel Lauss <mano@roarinelk.homelinux.net>");
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