Add a machine driver suitable for the AC97 part on the DB1000/DB1500/DB1100 boards.
Run-tested on DB1500.
Signed-off-by: Manuel Lauss manuel.lauss@googlemail.com --- V4/V5: no changes. V3: split off from patch 1, implemented new machine code.
arch/mips/alchemy/devboards/db1x00/platform.c | 48 ++++++++++++++++ sound/soc/au1x/Kconfig | 9 +++ sound/soc/au1x/Makefile | 2 + sound/soc/au1x/db1000.c | 75 +++++++++++++++++++++++++ 4 files changed, 134 insertions(+), 0 deletions(-) create mode 100644 sound/soc/au1x/db1000.c
diff --git a/arch/mips/alchemy/devboards/db1x00/platform.c b/arch/mips/alchemy/devboards/db1x00/platform.c index 978d5ab..7057d28 100644 --- a/arch/mips/alchemy/devboards/db1x00/platform.c +++ b/arch/mips/alchemy/devboards/db1x00/platform.c @@ -19,8 +19,11 @@ */
#include <linux/init.h> +#include <linux/interrupt.h> #include <linux/platform_device.h>
+#include <asm/mach-au1x00/au1000.h> +#include <asm/mach-au1x00/au1000_dma.h> #include <asm/mach-au1x00/au1xxx.h> #include <asm/mach-db1x00/bcsr.h> #include "../platform.h" @@ -85,6 +88,45 @@ #endif #endif
+static struct resource alchemy_ac97c_res[] = { + [0] = { + .start = AU1000_AC97_PHYS_ADDR, + .end = AU1000_AC97_PHYS_ADDR + 0xfff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = DMA_ID_AC97C_TX, + .end = DMA_ID_AC97C_TX, + .flags = IORESOURCE_DMA, + }, + [2] = { + .start = DMA_ID_AC97C_RX, + .end = DMA_ID_AC97C_RX, + .flags = IORESOURCE_DMA, + }, +}; + +static struct platform_device alchemy_ac97c_dev = { + .name = "alchemy-ac97c", + .id = -1, + .resource = alchemy_ac97c_res, + .num_resources = ARRAY_SIZE(alchemy_ac97c_res), +}; + +static struct platform_device alchemy_ac97c_dma_dev = { + .name = "alchemy-pcm-dma", + .id = 0, +}; + +static struct platform_device db1x00_codec_dev = { + .name = "ac97-codec", + .id = -1, +}; + +static struct platform_device db1x00_audio_dev = { + .name = "db1000-audio", +}; + static int __init db1xxx_dev_init(void) { #ifdef DB1XXX_HAS_PCMCIA @@ -113,6 +155,12 @@ static int __init db1xxx_dev_init(void) 1); #endif db1x_register_norflash(BOARD_FLASH_SIZE, BOARD_FLASH_WIDTH, F_SWAPPED); + + platform_device_register(&db1x00_codec_dev); + platform_device_register(&alchemy_ac97c_dma_dev); + platform_device_register(&alchemy_ac97c_dev); + platform_device_register(&db1x00_audio_dev); + return 0; } device_initcall(db1xxx_dev_init); diff --git a/sound/soc/au1x/Kconfig b/sound/soc/au1x/Kconfig index 0460b42..6d59254 100644 --- a/sound/soc/au1x/Kconfig +++ b/sound/soc/au1x/Kconfig @@ -41,6 +41,15 @@ config SND_SOC_AU1XI2SC ## ## Boards ## +config SND_SOC_DB1000 + tristate "DB1000 Audio support" + depends on SND_SOC_AU1XAUDIO + select SND_SOC_AU1XAC97C + select SND_SOC_AC97_CODEC + help + Select this option to enable AC97 audio on the early DB1x00 series + of boards (DB1000/DB1500/DB1100). + config SND_SOC_DB1200 tristate "DB1200 AC97+I2S audio support" depends on SND_SOC_AU1XPSC diff --git a/sound/soc/au1x/Makefile b/sound/soc/au1x/Makefile index ff5531e..9207105 100644 --- a/sound/soc/au1x/Makefile +++ b/sound/soc/au1x/Makefile @@ -16,6 +16,8 @@ obj-$(CONFIG_SND_SOC_AU1XAC97C) += snd-soc-au1x-ac97c.o obj-$(CONFIG_SND_SOC_AU1XI2SC) += snd-soc-au1x-i2sc.o
# Boards +snd-soc-db1000-objs := db1000.o snd-soc-db1200-objs := db1200.o
+obj-$(CONFIG_SND_SOC_DB1000) += snd-soc-db1000.o obj-$(CONFIG_SND_SOC_DB1200) += snd-soc-db1200.o diff --git a/sound/soc/au1x/db1000.c b/sound/soc/au1x/db1000.c new file mode 100644 index 0000000..127477a --- /dev/null +++ b/sound/soc/au1x/db1000.c @@ -0,0 +1,75 @@ +/* + * DB1000/DB1500/DB1100 ASoC audio fabric support code. + * + * (c) 2011 Manuel Lauss manuel.lauss@googlemail.com + * + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/timer.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <asm/mach-au1x00/au1000.h> +#include <asm/mach-db1x00/bcsr.h> + +#include "psc.h" + +static struct snd_soc_dai_link db1000_ac97_dai = { + .name = "AC97", + .stream_name = "AC97 HiFi", + .codec_dai_name = "ac97-hifi", + .cpu_dai_name = "alchemy-ac97c", + .platform_name = "alchemy-pcm-dma.0", + .codec_name = "ac97-codec", +}; + +static struct snd_soc_card db1000_ac97 = { + .name = "DB1000_AC97", + .dai_link = &db1000_ac97_dai, + .num_links = 1, +}; + +static int __devinit db1000_audio_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &db1000_ac97; + card->dev = &pdev->dev; + return snd_soc_register_card(card); +} + +static int __devexit db1000_audio_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 db1000_audio_driver = { + .driver = { + .name = "db1000-audio", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + }, + .probe = db1000_audio_probe, + .remove = __devexit_p(db1000_audio_remove), +}; + +static int __init db1000_audio_load(void) +{ + return platform_driver_register(&db1000_audio_driver); +} + +static void __exit db1000_audio_unload(void) +{ + platform_driver_unregister(&db1000_audio_driver); +} + +module_init(db1000_audio_load); +module_exit(db1000_audio_unload); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("DB1000/DB1500/DB1100 ASoC audio"); +MODULE_AUTHOR("Manuel Lauss");