mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-05 06:04:04 +02:00
1870 lines
51 KiB
Diff
1870 lines
51 KiB
Diff
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From d37d2d880efdc0ce515df4155ddafef3835d1b7f Mon Sep 17 00:00:00 2001
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From: Alison Wang <b18965@freescale.com>
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Date: Thu, 4 Aug 2011 09:59:41 +0800
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Subject: [PATCH 09/52] Add ALSA driver for MCF5445x
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Add ALSA driver for MCF54451 and MCF54455.
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Signed-off-by: Alison Wang <b18965@freescale.com>
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---
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sound/Kconfig | 6 +-
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sound/Makefile | 1 +
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sound/coldfire/Kconfig | 14 +
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sound/coldfire/Makefile | 6 +
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sound/coldfire/coldfire-codec-spi.c | 93 ++
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sound/coldfire/snd-coldfire.c | 1664 +++++++++++++++++++++++++++++++++++
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sound/coldfire/snd-coldfire.h | 15 +
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7 files changed, 1795 insertions(+), 4 deletions(-)
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create mode 100644 sound/coldfire/Kconfig
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create mode 100644 sound/coldfire/Makefile
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create mode 100644 sound/coldfire/coldfire-codec-spi.c
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create mode 100644 sound/coldfire/snd-coldfire.c
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create mode 100644 sound/coldfire/snd-coldfire.h
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--- a/sound/Kconfig
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+++ b/sound/Kconfig
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@@ -59,8 +59,6 @@ config SOUND_OSS_CORE_PRECLAIM
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source "sound/oss/dmasound/Kconfig"
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-if !M68K
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-
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menuconfig SND
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tristate "Advanced Linux Sound Architecture"
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help
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@@ -85,6 +83,8 @@ source "sound/aoa/Kconfig"
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source "sound/arm/Kconfig"
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+source "sound/coldfire/Kconfig"
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+
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source "sound/atmel/Kconfig"
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source "sound/spi/Kconfig"
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@@ -121,8 +121,6 @@ source "sound/oss/Kconfig"
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endif # SOUND_PRIME
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-endif # !M68K
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-
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endif # SOUND
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# AC97_BUS is used from both sound and ucb1400
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--- a/sound/Makefile
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+++ b/sound/Makefile
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@@ -8,6 +8,7 @@ obj-$(CONFIG_DMASOUND) += oss/
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obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/ usb/ \
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sparc/ spi/ parisc/ pcmcia/ mips/ soc/ atmel/
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obj-$(CONFIG_SND_AOA) += aoa/
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+obj-$(CONFIG_SND_COLDFIRE) += coldfire/
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# This one must be compilable even if sound is configured out
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obj-$(CONFIG_AC97_BUS) += ac97_bus.o
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--- /dev/null
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+++ b/sound/coldfire/Kconfig
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@@ -0,0 +1,14 @@
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+
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+menu "ALSA for Coldfire"
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+
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+config SND_COLDFIRE
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+ bool "Coldfire sound devices"
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+ depends on SND
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+ select SND_PCM
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+ select SSIAUDIO_USE_EDMA
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+ default y
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+ help
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+ Support for sound devices specific to Coldfire architectures.
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+
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+endmenu
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+
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--- /dev/null
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+++ b/sound/coldfire/Makefile
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@@ -0,0 +1,6 @@
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+#
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+# Makefile for Coldfire ALSA
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+#
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+
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+obj-y += snd-coldfire.o coldfire-codec-spi.o
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+
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--- /dev/null
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+++ b/sound/coldfire/coldfire-codec-spi.c
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@@ -0,0 +1,93 @@
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+/*
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+ * linux/sound/coldfire/coldfire-codec-spi.c
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+ *
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+ * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All Rights Reserved.
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+ * Author: Kurt Mahan <kmahan@freescale.com>
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+ *
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+ * Simple SPI interface for the CODEC.
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+ *
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+ * This is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ */
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+
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+#include <linux/device.h>
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+#include <linux/init.h>
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+#include <linux/spi/spi.h>
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+#include <linux/kernel.h>
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+#include <asm/mcfsim.h>
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+#include <asm/coldfire.h>
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+#include <linux/delay.h>
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+
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+#define MCF_CODEC_SPI_DRIVER_NAME "mcf_codec_spi"
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+
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+static struct spi_device *mcf_codec_spi;
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+
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+/*
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+ * Write CODEC register via SPI
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+ */
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+int mcf_codec_spi_write(u8 addr, u16 data)
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+{
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+ u16 spi_word;
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+
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+ if (mcf_codec_spi == NULL)
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+ return -ENODEV;
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+
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+ spi_word = ((addr & 0x7F)<<9)|(data & 0x1FF);
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+ return spi_write(mcf_codec_spi, (const u8 *)&spi_word,
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+ sizeof(spi_word));
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+}
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+EXPORT_SYMBOL(mcf_codec_spi_write);
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+
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+static int __devinit mcf_codec_spi_probe(struct spi_device *spi)
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+{
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+ spi->dev.power.power_state = PMSG_ON;
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+ mcf_codec_spi = spi;
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+
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+ return 0;
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+}
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+
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+static int __devexit mcf_codec_spi_remove(struct spi_device *spi)
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+{
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+ return 0;
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+}
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+
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+static int mcf_codec_spi_suspend(struct spi_device *spi, pm_message_t message)
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+{
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+ return 0;
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+}
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+
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+static int mcf_codec_spi_resume(struct spi_device *spi)
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+{
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+ return 0;
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+}
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+
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+static struct spi_driver mcf_codec_spi_driver = {
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+ .driver = {
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+ .name = MCF_CODEC_SPI_DRIVER_NAME,
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+ .bus = &spi_bus_type,
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+ .owner = THIS_MODULE,
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+ },
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+ .probe = mcf_codec_spi_probe,
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+ .remove = __devexit_p(mcf_codec_spi_remove),
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+ .suspend = mcf_codec_spi_suspend,
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+ .resume = mcf_codec_spi_resume,
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+};
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+
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+static int __init mcf_codec_spi_init(void)
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+{
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+ return spi_register_driver(&mcf_codec_spi_driver);
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+}
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+module_init(mcf_codec_spi_init);
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+
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+static void __exit mcf_codec_spi_exit(void)
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+{
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+ spi_unregister_driver(&mcf_codec_spi_driver);
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+}
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+module_exit(mcf_codec_spi_exit);
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+
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+
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+MODULE_DESCRIPTION("Coldfire Codec SPI driver");
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+MODULE_AUTHOR("Kurt Mahan, Freescale Semiconductor, Inc.");
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+MODULE_LICENSE("GPL");
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--- /dev/null
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+++ b/sound/coldfire/snd-coldfire.c
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@@ -0,0 +1,1664 @@
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+/*
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+ * linux/sound/coldfire/snd-coldfire.c
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+ *
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+ * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All Rights Reserved.
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+ * Author: York Sun <r58495@freescale.com>
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+ * Alison Wang <b18965@freescale.com>
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+ *
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+ * Coldfire ALSA driver based on SSI and TLV320A
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+ *
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+ * This is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ ***************************************************************************
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+ *
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+ * NOTE: This driver was tested on MCF5445x, MCF5301x, MCF5227x, MCF532x and
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+ * MCF537x platforms.
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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/platform_device.h>
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+#include <linux/init.h>
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+#include <linux/device.h>
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+#include <linux/slab.h>
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+#include <linux/dma-mapping.h>
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+#include <linux/ioctl.h>
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+#include <linux/soundcard.h>
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+#include <linux/spi/spi.h>
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+
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+#include <sound/core.h>
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+#include <sound/pcm.h>
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+#include <sound/pcm_params.h>
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+#include <sound/control.h>
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+#include <linux/fs.h>
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+#include <linux/delay.h>
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+
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+#include <asm/mcfsim.h>
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+#include <asm/coldfire.h>
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+#include <asm/mcf_edma.h>
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+#include "snd-coldfire.h"
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+
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+#if defined(CONFIG_M5445X)
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+#include <asm/mcf5445x_ssi.h>
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+#endif
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+
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+#define CF_ALSA_DEBUG 0
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+#if CF_ALSA_DEBUG
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+#define DBG(fmt, args...) printk(KERN_INFO "[%s] " fmt , \
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+ __func__, ## args)
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+#else
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+#define DBG(fmt, args...) do {} while (0)
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+#endif
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+
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+#define SOUND_CARD_NAME "Coldfire ALSA"
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+#define MAX_BUFFER_SIZE (32*1024)
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+
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+/* eDMA channel for SSI channel 0,1 TX,RX */
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+#define DMA_TX_TCD0 MCF_EDMA_CHAN_TIMER2
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+#define DMA_TX_TCD1 MCF_EDMA_CHAN_TIMER3
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+#define DMA_RX_TCD0 MCF_EDMA_CHAN_TIMER0
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+#define DMA_RX_TCD1 MCF_EDMA_CHAN_TIMER1
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+
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+#define CODEC_LEFT_IN_REG (0x00)
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+#define CODEC_RIGHT_IN_REG (0x01)
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+#define CODEC_LEFT_HP_VOL_REG (0x02)
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+#define CODEC_RIGHT_HP_VOL_REG (0x03)
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+#define CODEC_ANALOG_APATH_REG (0x04)
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+#define CODEC_DIGITAL_APATH_REG (0x05)
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+#define CODEC_POWER_DOWN_REG (0x06)
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+#define CODEC_DIGITAL_IF_FMT_REG (0x07)
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+#define CODEC_SAMPLE_RATE_REG (0x08)
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+#define CODEC_DIGITAL_IF_ACT_REG (0x09)
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+#define CODEC_RESET_REG (0x0f)
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+
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+#define TLV320AIC23_CODEC_SAMPLE_RATE_REG (0x08)
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+#define TLV320AIC23_CODEC_SAMPLERATE_REG_8KHZ (0x0C)
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+#define TLV320AIC23_CODEC_SAMPLERATE_REG_11KHZ (0x0C)
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+#define TLV320AIC23_CODEC_SAMPLERATE_REG_16KHZ (0x58)
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+#define TLV320AIC23_CODEC_SAMPLERATE_REG_22KHZ (0x62)
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+#define TLV320AIC23_CODEC_SAMPLERATE_REG_44KHZ (0x22)
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+#define TLV320AIC23_CODEC_SAMPLERATE_REG_48KHZ (0x00)
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+
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+#define MCF_SSI_AUDIO_IRQ_LEVEL (5)
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+#define TLV320A_VOL_MAX 0x07F
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+#define TLV320A_VOL_MIN 0x030
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+#define TLV320A_VOL_INIT 0x065
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+#define TLV320A_LINEIN_MAX 0x1F
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+#define TLV320A_LINEIN_INIT 0x17
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+#define TLV320A_ANALOGPATH_INIT 0x11
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+
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+/* Codec settings */
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+#define MCF_SSI_AUDIO_MCLK_1 (12288000U) /*Hz*/
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+#define MCF_SSI_AUDIO_MCLK_2 (16934400U) /*Hz*/
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+#define MCF_SSI_AUDIO_MCLK_3 (14112000U) /*Hz*/
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+#define MCF_SSI_AUDIO_MCLK_4 (18432000U) /*Hz*/
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+
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+#define MCF_SSI_AUDIO_SSDIV_VALUE_1 \
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+ ((((u32)MCF_CLK*2)/MCF_SSI_AUDIO_MCLK_1)+ \
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+ (((((u32)MCF_CLK*2*10)/MCF_SSI_AUDIO_MCLK_1)%10) > 5))
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+
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+#define MCF_SSI_AUDIO_SSDIV_VALUE_2 \
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+ ((((u32)MCF_CLK*2)/MCF_SSI_AUDIO_MCLK_2)+ \
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+ (((((u32)MCF_CLK*2*10)/MCF_SSI_AUDIO_MCLK_2)%10) > 5))
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+
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+#define MCF_SSI_AUDIO_SSDIV_VALUE_3 \
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+ ((((u32)MCF_CLK*2)/MCF_SSI_AUDIO_MCLK_3)+ \
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+ (((((u32)MCF_CLK*2*10)/MCF_SSI_AUDIO_MCLK_3)%10) > 5))
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+
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+#define MCF_SSI_AUDIO_SSDIV_VALUE_4 \
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+ ((((u32)MCF_CLK*2)/MCF_SSI_AUDIO_MCLK_4)+ \
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+ (((((u32)MCF_CLK*2*10)/MCF_SSI_AUDIO_MCLK_4)%10) > 5))
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+
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+#define SNDRV_COLDFIRE_PCM_PLAYBACK_FORMATS SNDRV_PCM_FMTBIT_S16_BE
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+#define SNDRV_COLDFIRE_PCM_CAPTURE_FORMATS SNDRV_PCM_FMTBIT_S16_BE
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+
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+#define RXFWM 2
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+#define TXFWM 2
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+#define HW_PERIODS_BYTES_MIN 4096
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+#define HW_PERIODS_BYTES_STEP 4096
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+
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+#define INPUT_MICROPHONE 0
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+#define INPUT_LINEIN 1
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+#define NUM_TCDS 4
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+
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+static char *id;
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+static struct platform_device *device;
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+static int g_tx_dmaing;
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+static int g_rx_dmaing;
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+static unsigned char g_mastervol, g_lineinvol, g_analogpath;
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+
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+/** Use 4 TCDs for scatter/gather address
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+ * to setup dma chain, one TCD per period
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+ * so that we don't need change them on the fly
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+ */
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+
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+/**
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+ * Link Descriptor
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+ *
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+ * must be aligned on a 32-byte boundary.
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+ */
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+struct dma_tcd {
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+ __be32 saddr; /* source address */
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+ __be16 attr; /* transfer attribute */
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+ __be16 soffset; /* source offset */
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+ __be32 nbytes; /* minor byte count */
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+ __be32 slast; /* last source address adjust */
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+ __be32 daddr; /* dest address */
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+ __be16 citer; /* current minor looplink, major count */
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+ __be16 doffset; /* dest offset */
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+ __be32 dlast_sga; /* last dest addr adjust, scatter/gather addr*/
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+ __be16 biter; /* begging minor looklink, major count */
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+ __be16 csr; /* control and status */
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+} __packed;
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+
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+/** dma_private: p-substream DMA data
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+ *
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+ * The tcd[] array is first because it needs to be aligned on a 32-byte
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+ * boundary, so putting it first will ensure alignment without padding the
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+ * structure.
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+ *
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+ * @tcd[]: array of TCDs
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+ */
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+struct dma_private {
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+ struct dma_tcd tcd0[NUM_TCDS];
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+ struct dma_tcd tcd1[NUM_TCDS];
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+ dma_addr_t tcd_buf_phys; /* physical address of dma_private */
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+ dma_addr_t dma_buf_phys;
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+ dma_addr_t dma_buf_next;
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+ dma_addr_t dma_buf_end;
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+ size_t period_size;
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+ unsigned int num_periods;
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+};
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+
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+struct tlv320a_audio_device {
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+ struct spi_device *spi;
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+ u32 speed;
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+ u32 stereo;
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+ u32 bits;
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||
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+ u32 format;
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+ u8 isopen;
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+ u8 dmaing;
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+ u8 ssi_enabled;
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+ u8 channel;
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+ spinlock_t lock;
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||
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+ u8 *audio_buf;
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+};
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||
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+
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||
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+/* chip specific define */
|
||
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+struct chip_spec {
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+ struct snd_card *card;
|
||
|
+ struct snd_pcm *pcm;
|
||
|
+ struct tlv320a_audio_device *audio_device;
|
||
|
+ u32 offset;
|
||
|
+ void *mixer_data;
|
||
|
+};
|
||
|
+
|
||
|
+/* hardware definition */
|
||
|
+static struct snd_pcm_hardware snd_coldfire_playback_hw = {
|
||
|
+ .info = (SNDRV_PCM_INFO_INTERLEAVED |
|
||
|
+#if defined(CONFIG_MMU)
|
||
|
+ SNDRV_PCM_INFO_MMAP |
|
||
|
+ SNDRV_PCM_INFO_MMAP_VALID|
|
||
|
+#endif
|
||
|
+ SNDRV_PCM_INFO_BLOCK_TRANSFER),
|
||
|
+ .formats = SNDRV_COLDFIRE_PCM_PLAYBACK_FORMATS,
|
||
|
+ .rates = SNDRV_PCM_RATE_8000_48000,
|
||
|
+ .rate_min = 8000,
|
||
|
+ .rate_max = 48000,
|
||
|
+ .channels_min = 1,
|
||
|
+ .channels_max = 2,
|
||
|
+ .buffer_bytes_max = MAX_BUFFER_SIZE,
|
||
|
+ .period_bytes_min = HW_PERIODS_BYTES_MIN,
|
||
|
+ .period_bytes_max = MAX_BUFFER_SIZE/NUM_TCDS,
|
||
|
+ .periods_min = NUM_TCDS,
|
||
|
+ .periods_max = NUM_TCDS,
|
||
|
+ .fifo_size = 0,
|
||
|
+};
|
||
|
+
|
||
|
+/* hardware definition */
|
||
|
+static struct snd_pcm_hardware snd_coldfire_capture_hw = {
|
||
|
+ .info = (SNDRV_PCM_INFO_INTERLEAVED |
|
||
|
+#if defined(CONFIG_MMU)
|
||
|
+ SNDRV_PCM_INFO_MMAP |
|
||
|
+ SNDRV_PCM_INFO_MMAP_VALID|
|
||
|
+#endif
|
||
|
+ SNDRV_PCM_INFO_BLOCK_TRANSFER),
|
||
|
+ .formats = SNDRV_COLDFIRE_PCM_CAPTURE_FORMATS,
|
||
|
+ .rates = SNDRV_PCM_RATE_8000_48000,
|
||
|
+ .rate_min = 8000,
|
||
|
+ .rate_max = 48000,
|
||
|
+ .channels_min = 1,
|
||
|
+ .channels_max = 2,
|
||
|
+ .buffer_bytes_max = MAX_BUFFER_SIZE,
|
||
|
+ .period_bytes_min = HW_PERIODS_BYTES_MIN,
|
||
|
+ .period_bytes_max = MAX_BUFFER_SIZE/NUM_TCDS,
|
||
|
+ .periods_min = NUM_TCDS,
|
||
|
+ .periods_max = NUM_TCDS,
|
||
|
+ .fifo_size = 0,
|
||
|
+};
|
||
|
+
|
||
|
+static unsigned int rates[] = {8000, 11025, 16000, 22000,
|
||
|
+ 22050, 44000, 44100, 48000};
|
||
|
+
|
||
|
+/* hw constraints */
|
||
|
+static struct snd_pcm_hw_constraint_list constraints_rates = {
|
||
|
+ .count = ARRAY_SIZE(rates),
|
||
|
+ .list = rates,
|
||
|
+ .mask = 0,
|
||
|
+};
|
||
|
+
|
||
|
+static inline void ssi_audio_dma_playback_start(void)
|
||
|
+{
|
||
|
+ g_tx_dmaing = 1;
|
||
|
+ mcf_edma_start_transfer(DMA_TX_TCD0);
|
||
|
+ mcf_edma_start_transfer(DMA_TX_TCD1);
|
||
|
+}
|
||
|
+
|
||
|
+static inline void ssi_audio_dma_capture_start(void)
|
||
|
+{
|
||
|
+ g_rx_dmaing = 1;
|
||
|
+ mcf_edma_start_transfer(DMA_RX_TCD0);
|
||
|
+ mcf_edma_start_transfer(DMA_RX_TCD1);
|
||
|
+}
|
||
|
+
|
||
|
+static inline void ssi_audio_dma_playback_stop(void)
|
||
|
+{
|
||
|
+ g_tx_dmaing = 0;
|
||
|
+ mcf_edma_stop_transfer(DMA_TX_TCD0);
|
||
|
+ mcf_edma_stop_transfer(DMA_TX_TCD1);
|
||
|
+}
|
||
|
+
|
||
|
+inline void ssi_audio_dma_capture_stop(void)
|
||
|
+{
|
||
|
+ g_rx_dmaing = 0;
|
||
|
+ mcf_edma_stop_transfer(DMA_RX_TCD0);
|
||
|
+ mcf_edma_stop_transfer(DMA_RX_TCD1);
|
||
|
+}
|
||
|
+
|
||
|
+/**
|
||
|
+ * fill_tcd_params - Fill transfer control descriptor (TCD)
|
||
|
+ * @base: base address of TCD
|
||
|
+ * @source: source address
|
||
|
+ * @dest: destination address
|
||
|
+ * @attr: attributes
|
||
|
+ * @soff: source offset
|
||
|
+ * @nbytes: number of bytes to be transfered in minor loop
|
||
|
+ * @slast: last source address adjustment
|
||
|
+ * @citer: major loop count
|
||
|
+ * @biter: beginning minor loop count
|
||
|
+ * @doff: destination offset
|
||
|
+ * @dlast_sga: last destination address adjustment
|
||
|
+ * @major_int: generate interrupt after each major loop
|
||
|
+ * @disable_req: disable DMA request after major loop
|
||
|
+ * @enable_sg: enable scatter/gather address
|
||
|
+ */
|
||
|
+void fill_tcd_params(u32 base, u32 source, u32 dest,
|
||
|
+ u32 attr, u32 soff, u32 nbytes, u32 slast,
|
||
|
+ u32 citer, u32 biter, u32 doff, u32 dlast_sga,
|
||
|
+ int major_int, int disable_req, int enable_sg)
|
||
|
+{
|
||
|
+ struct dma_tcd *tcd = (struct dma_tcd *) base;
|
||
|
+
|
||
|
+ tcd->saddr = source;
|
||
|
+ tcd->attr = attr;
|
||
|
+ tcd->soffset = soff;
|
||
|
+ tcd->nbytes = nbytes;
|
||
|
+ tcd->slast = slast;
|
||
|
+ tcd->daddr = dest;
|
||
|
+ tcd->citer = citer & 0x7fff;
|
||
|
+ tcd->doffset = doff;
|
||
|
+ tcd->dlast_sga = dlast_sga;
|
||
|
+ tcd->biter = biter & 0x7fff;
|
||
|
+ tcd->csr = ((major_int) ? 0x2 : 0) |
|
||
|
+ ((disable_req) ? 0x8 : 0) |
|
||
|
+ ((enable_sg) ? 0x10 : 0);
|
||
|
+}
|
||
|
+
|
||
|
+static int
|
||
|
+ssi_audio_dma_playback_config(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ struct snd_pcm_runtime *runtime = substream->runtime;
|
||
|
+ struct dma_private *dma_private = runtime->private_data;
|
||
|
+ u32 size = frames_to_bytes(runtime, runtime->period_size);
|
||
|
+ u32 offset, soffset, daddr0, daddr1, attr, sga0, sga1;
|
||
|
+ u32 i, nbyte, major_loops;
|
||
|
+
|
||
|
+ if ((runtime->channels < 1) || (runtime->channels > 2)) {
|
||
|
+ printk(KERN_ERR "Error on channels = %d\n", runtime->channels);
|
||
|
+ return -EINVAL;
|
||
|
+ }
|
||
|
+
|
||
|
+ dma_private->dma_buf_phys = runtime->dma_addr;
|
||
|
+ dma_private->dma_buf_next = dma_private->dma_buf_phys;
|
||
|
+ dma_private->dma_buf_end = dma_private->dma_buf_phys +
|
||
|
+ runtime->periods * size;
|
||
|
+
|
||
|
+ if (runtime->format == SNDRV_PCM_FORMAT_S16_BE) {
|
||
|
+ nbyte = 2 * TXFWM;
|
||
|
+ soffset = 2 * runtime->channels;
|
||
|
+ daddr0 = (u32)&MCF_SSI_TX0 + 2;
|
||
|
+ daddr1 = (u32)&MCF_SSI_TX1 + 2;
|
||
|
+ attr = MCF_EDMA_TCD_ATTR_SSIZE_16BIT |
|
||
|
+ MCF_EDMA_TCD_ATTR_DSIZE_16BIT;
|
||
|
+ } else {
|
||
|
+ printk(KERN_ERR "Not supported PCM format %x\n",
|
||
|
+ runtime->format);
|
||
|
+ return -EINVAL;
|
||
|
+ }
|
||
|
+
|
||
|
+ major_loops = size/nbyte/runtime->channels;
|
||
|
+ sga0 = (u32)dma_private->tcd_buf_phys;
|
||
|
+ sga1 = (u32)dma_private->tcd_buf_phys +
|
||
|
+ 4 * sizeof(struct dma_tcd);
|
||
|
+
|
||
|
+#if defined(CONFIG_M5301x) || defined(CONFIG_M5445X)
|
||
|
+ MCF_EDMA_TCD10_CSR = 0;
|
||
|
+ MCF_EDMA_TCD11_CSR = 0;
|
||
|
+#else
|
||
|
+ MCF_EDMA_TCD11_CSR = 0;
|
||
|
+ MCF_EDMA_TCD12_CSR = 0;
|
||
|
+#endif
|
||
|
+ offset = (runtime->channels - 1) * 2;
|
||
|
+ mcf_edma_set_tcd_params(DMA_TX_TCD0,
|
||
|
+ (u32)dma_private->dma_buf_next,
|
||
|
+ daddr0,
|
||
|
+ attr,
|
||
|
+ soffset,
|
||
|
+ nbyte,
|
||
|
+ 0, /* slast */
|
||
|
+ major_loops, /* citer */
|
||
|
+ major_loops, /* biter */
|
||
|
+ 0, /* dest offset */
|
||
|
+ sga0,
|
||
|
+ 1, /* major_int */
|
||
|
+ 0); /* enable dma request after */
|
||
|
+
|
||
|
+ mcf_edma_set_tcd_params(DMA_TX_TCD1,
|
||
|
+ (u32)dma_private->dma_buf_next + offset,
|
||
|
+ daddr1,
|
||
|
+ attr,
|
||
|
+ soffset,
|
||
|
+ nbyte,
|
||
|
+ 0, /* slast */
|
||
|
+ major_loops, /* citer */
|
||
|
+ major_loops, /* biter */
|
||
|
+ 0, /* dest offset */
|
||
|
+ sga1,
|
||
|
+ 0, /* major_int */
|
||
|
+ 0); /* enable dma request after */
|
||
|
+
|
||
|
+ while (!(MCF_EDMA_TCD_CSR(DMA_TX_TCD0) & MCF_EDMA_TCD_CSR_E_SG))
|
||
|
+ MCF_EDMA_TCD_CSR(DMA_TX_TCD0) |= MCF_EDMA_TCD_CSR_E_SG;
|
||
|
+ while (!(MCF_EDMA_TCD_CSR(DMA_TX_TCD1) & MCF_EDMA_TCD_CSR_E_SG))
|
||
|
+ MCF_EDMA_TCD_CSR(DMA_TX_TCD1) |= MCF_EDMA_TCD_CSR_E_SG;
|
||
|
+
|
||
|
+ for (i = 0; i < NUM_TCDS; i++) {
|
||
|
+ dma_private->dma_buf_next += size;
|
||
|
+ if (dma_private->dma_buf_next >= dma_private->dma_buf_end)
|
||
|
+ dma_private->dma_buf_next = dma_private->dma_buf_phys;
|
||
|
+ sga0 = (u32)dma_private->tcd_buf_phys +
|
||
|
+ ((i+1)%NUM_TCDS) * sizeof(struct dma_tcd);
|
||
|
+ sga1 = (u32)dma_private->tcd_buf_phys +
|
||
|
+ ((i+1)%NUM_TCDS + 4) * sizeof(struct dma_tcd);
|
||
|
+ DBG("sga0 = 0x%x, sga1 = 0x%x.\n", sga0, sga1);
|
||
|
+ fill_tcd_params((u32)&dma_private->tcd0[i],
|
||
|
+ (u32)dma_private->dma_buf_next,
|
||
|
+ daddr0,
|
||
|
+ attr,
|
||
|
+ soffset,
|
||
|
+ nbyte,
|
||
|
+ 0, /* slast */
|
||
|
+ major_loops, /* citer */
|
||
|
+ major_loops, /* biter */
|
||
|
+ 0, /* dest offset */
|
||
|
+ sga0,
|
||
|
+ 1, /* major_int */
|
||
|
+ 0, /* enable dma request after */
|
||
|
+ 1); /* enable scatter/gather */
|
||
|
+
|
||
|
+ fill_tcd_params((u32)&dma_private->tcd1[i],
|
||
|
+ (u32)dma_private->dma_buf_next + offset,
|
||
|
+ daddr1,
|
||
|
+ attr,
|
||
|
+ soffset,
|
||
|
+ nbyte,
|
||
|
+ 0, /* slast */
|
||
|
+ major_loops, /* citer */
|
||
|
+ major_loops, /* biter */
|
||
|
+ 0, /* dest offset */
|
||
|
+ sga1,
|
||
|
+ 0, /* major_int */
|
||
|
+ 0, /* enable dma request after */
|
||
|
+ 1); /* enable scatter/gather */
|
||
|
+ }
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int
|
||
|
+ssi_audio_dma_capture_config(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ struct snd_pcm_runtime *runtime = substream->runtime;
|
||
|
+ struct dma_private *dma_private = runtime->private_data;
|
||
|
+ u32 size = frames_to_bytes(runtime, runtime->period_size);
|
||
|
+ u32 offset, saddr0, saddr1, doffset, attr, sga0, sga1;
|
||
|
+ int i, nbyte, major_loops;
|
||
|
+
|
||
|
+ if ((runtime->channels < 1) || (runtime->channels > 2)) {
|
||
|
+ printk(KERN_ERR "Error on channels = %d\n", runtime->channels);
|
||
|
+ return -EINVAL;
|
||
|
+ }
|
||
|
+
|
||
|
+ dma_private->dma_buf_phys = runtime->dma_addr;
|
||
|
+ dma_private->dma_buf_next = dma_private->dma_buf_phys;
|
||
|
+ dma_private->dma_buf_end = dma_private->dma_buf_phys +
|
||
|
+ runtime->periods * size;
|
||
|
+
|
||
|
+ switch (runtime->format) {
|
||
|
+ case SNDRV_PCM_FORMAT_S16_BE:
|
||
|
+ saddr0 = (u32)&MCF_SSI_RX0 + 2;
|
||
|
+ saddr1 = (u32)&MCF_SSI_RX1 + 2;
|
||
|
+ nbyte = 2 * RXFWM;
|
||
|
+ doffset = 2 * runtime->channels;
|
||
|
+ attr = MCF_EDMA_TCD_ATTR_SSIZE_16BIT |
|
||
|
+ MCF_EDMA_TCD_ATTR_DSIZE_16BIT;
|
||
|
+ break;
|
||
|
+ default:
|
||
|
+ printk(KERN_ERR "Not supported PCM format %x\n",
|
||
|
+ runtime->format);
|
||
|
+ return -EINVAL;
|
||
|
+ }
|
||
|
+
|
||
|
+ major_loops = size/nbyte/runtime->channels;
|
||
|
+ sga0 = (u32)dma_private->tcd_buf_phys;
|
||
|
+ sga1 = (u32)dma_private->tcd_buf_phys +
|
||
|
+ 4 * sizeof(struct dma_tcd);
|
||
|
+
|
||
|
+#if defined(CONFIG_M5301x) || defined(CONFIG_M5445X)
|
||
|
+ MCF_EDMA_TCD8_CSR = 0;
|
||
|
+ MCF_EDMA_TCD9_CSR = 0;
|
||
|
+#else
|
||
|
+ MCF_EDMA_TCD9_CSR = 0;
|
||
|
+ MCF_EDMA_TCD10_CSR = 0;
|
||
|
+#endif
|
||
|
+ offset = (runtime->channels - 1) * 2;
|
||
|
+ mcf_edma_set_tcd_params(DMA_RX_TCD0,
|
||
|
+ saddr0,
|
||
|
+ (u32)dma_private->dma_buf_next,
|
||
|
+ attr,
|
||
|
+ 0, /* source offset */
|
||
|
+ nbyte,
|
||
|
+ 0, /* slast */
|
||
|
+ major_loops, /* citer */
|
||
|
+ major_loops, /* biter */
|
||
|
+ doffset,
|
||
|
+ sga0,
|
||
|
+ 1, /* major_int */
|
||
|
+ 0); /* enable dma request after */
|
||
|
+
|
||
|
+ mcf_edma_set_tcd_params(DMA_RX_TCD1,
|
||
|
+ saddr1,
|
||
|
+ (u32)dma_private->dma_buf_next + offset,
|
||
|
+ attr,
|
||
|
+ 0, /* source offset */
|
||
|
+ nbyte,
|
||
|
+ 0, /* slast */
|
||
|
+ major_loops, /* citer */
|
||
|
+ major_loops, /* biter */
|
||
|
+ doffset,
|
||
|
+ sga1,
|
||
|
+ 0, /* major_int */
|
||
|
+ 0); /* enable dma request after */
|
||
|
+
|
||
|
+ while (!(MCF_EDMA_TCD_CSR(DMA_RX_TCD0) & MCF_EDMA_TCD_CSR_E_SG))
|
||
|
+ MCF_EDMA_TCD_CSR(DMA_RX_TCD0) |= MCF_EDMA_TCD_CSR_E_SG;
|
||
|
+ while (!(MCF_EDMA_TCD_CSR(DMA_RX_TCD1) & MCF_EDMA_TCD_CSR_E_SG))
|
||
|
+ MCF_EDMA_TCD_CSR(DMA_RX_TCD1) |= MCF_EDMA_TCD_CSR_E_SG;
|
||
|
+
|
||
|
+ for (i = 0; i < NUM_TCDS; i++) {
|
||
|
+ dma_private->dma_buf_next += size;
|
||
|
+ if (dma_private->dma_buf_next >= dma_private->dma_buf_end)
|
||
|
+ dma_private->dma_buf_next = dma_private->dma_buf_phys;
|
||
|
+ sga0 = (u32)dma_private->tcd_buf_phys +
|
||
|
+ ((i+1)%NUM_TCDS) * sizeof(struct dma_tcd);
|
||
|
+ sga1 = (u32)dma_private->tcd_buf_phys +
|
||
|
+ ((i+1)%NUM_TCDS + 4) * sizeof(struct dma_tcd);
|
||
|
+ fill_tcd_params((u32)&dma_private->tcd0[i],
|
||
|
+ saddr0,
|
||
|
+ (u32)dma_private->dma_buf_next,
|
||
|
+ attr,
|
||
|
+ 0, /* source offset */
|
||
|
+ nbyte,
|
||
|
+ 0, /* slast */
|
||
|
+ major_loops, /* citer */
|
||
|
+ major_loops, /* biter */
|
||
|
+ doffset,
|
||
|
+ sga0,
|
||
|
+ 1, /* major_int */
|
||
|
+ 0, /* enable dma request after */
|
||
|
+ 1); /* enable scatter/gather */
|
||
|
+ fill_tcd_params((u32)&dma_private->tcd1[i],
|
||
|
+ saddr1,
|
||
|
+ (u32)dma_private->dma_buf_next + offset,
|
||
|
+ attr,
|
||
|
+ 0, /* source offset */
|
||
|
+ nbyte,
|
||
|
+ 0, /* slast */
|
||
|
+ major_loops, /* citer */
|
||
|
+ major_loops, /* biter */
|
||
|
+ doffset,
|
||
|
+ sga1,
|
||
|
+ 0, /* major_int */
|
||
|
+ 0, /* enable dma request after */
|
||
|
+ 1); /* enable scatter/gather */
|
||
|
+ }
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static inline void ssi_audio_enable_ssi_playback(void)
|
||
|
+{
|
||
|
+ MCF_SSI_CR |= MCF_SSI_CR_SSI_EN | MCF_SSI_CR_TE;
|
||
|
+}
|
||
|
+
|
||
|
+static inline void ssi_audio_enable_ssi_capture(void)
|
||
|
+{
|
||
|
+ MCF_SSI_CR |= MCF_SSI_CR_SSI_EN | MCF_SSI_CR_RE;
|
||
|
+}
|
||
|
+
|
||
|
+static inline void ssi_audio_disable_ssi(void)
|
||
|
+{
|
||
|
+ MCF_SSI_CR &= ~(MCF_SSI_CR_TE | MCF_SSI_CR_RE | MCF_SSI_CR_SSI_EN);
|
||
|
+}
|
||
|
+
|
||
|
+static inline void ssi_audio_disable_ssi_playback(void)
|
||
|
+{
|
||
|
+ MCF_SSI_CR &= ~MCF_SSI_CR_TE;
|
||
|
+}
|
||
|
+
|
||
|
+static inline void ssi_audio_disable_ssi_capture(void)
|
||
|
+{
|
||
|
+ MCF_SSI_CR &= ~MCF_SSI_CR_RE;
|
||
|
+}
|
||
|
+
|
||
|
+static irqreturn_t ssi_audio_dma_playback_handler(int channel, void *dev_id)
|
||
|
+{
|
||
|
+ struct snd_pcm_substream *substream;
|
||
|
+ struct snd_pcm_runtime *runtime;
|
||
|
+
|
||
|
+ substream = (struct snd_pcm_substream *)dev_id;
|
||
|
+ runtime = substream->runtime;
|
||
|
+
|
||
|
+ /* inform ALSA middle layer about transfer status */
|
||
|
+ snd_pcm_period_elapsed(substream);
|
||
|
+ mcf_edma_confirm_interrupt_handled(DMA_TX_TCD0);
|
||
|
+ mcf_edma_confirm_interrupt_handled(DMA_TX_TCD1);
|
||
|
+
|
||
|
+ return IRQ_HANDLED;
|
||
|
+}
|
||
|
+
|
||
|
+static irqreturn_t ssi_audio_dma_capture_handler(int channel, void *dev_id)
|
||
|
+{
|
||
|
+ struct snd_pcm_substream *substream;
|
||
|
+ struct snd_pcm_runtime *runtime;
|
||
|
+
|
||
|
+ substream = (struct snd_pcm_substream *)dev_id;
|
||
|
+ runtime = substream->runtime;
|
||
|
+
|
||
|
+ /* inform ALSA middle layer about transfer status */
|
||
|
+ snd_pcm_period_elapsed(substream);
|
||
|
+ mcf_edma_confirm_interrupt_handled(DMA_RX_TCD0);
|
||
|
+ mcf_edma_confirm_interrupt_handled(DMA_RX_TCD1);
|
||
|
+
|
||
|
+ return IRQ_HANDLED;
|
||
|
+}
|
||
|
+
|
||
|
+int ssi_audio_dma_request_playback_channel(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ int err;
|
||
|
+ struct chip_spec *chip = snd_pcm_substream_chip(substream);
|
||
|
+
|
||
|
+ /* request eDMA channel */
|
||
|
+ err = mcf_edma_request_channel(DMA_TX_TCD0,
|
||
|
+ ssi_audio_dma_playback_handler,
|
||
|
+ NULL,
|
||
|
+ MCF_SSI_AUDIO_IRQ_LEVEL,
|
||
|
+ substream,
|
||
|
+ &(chip->audio_device->lock),
|
||
|
+ id);
|
||
|
+ if (err < 0)
|
||
|
+ return err;
|
||
|
+ err = mcf_edma_request_channel(DMA_TX_TCD1,
|
||
|
+ ssi_audio_dma_playback_handler,
|
||
|
+ NULL,
|
||
|
+ MCF_SSI_AUDIO_IRQ_LEVEL,
|
||
|
+ substream,
|
||
|
+ &(chip->audio_device->lock),
|
||
|
+ id);
|
||
|
+ return err;
|
||
|
+}
|
||
|
+
|
||
|
+int ssi_audio_dma_request_capture_channel(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ int err;
|
||
|
+ struct chip_spec *chip = snd_pcm_substream_chip(substream);
|
||
|
+
|
||
|
+ /* request 2 eDMA channels for two fifo */
|
||
|
+ err = mcf_edma_request_channel(DMA_RX_TCD0,
|
||
|
+ ssi_audio_dma_capture_handler,
|
||
|
+ NULL,
|
||
|
+ MCF_SSI_AUDIO_IRQ_LEVEL,
|
||
|
+ substream,
|
||
|
+ &(chip->audio_device->lock),
|
||
|
+ id);
|
||
|
+ if (err < 0)
|
||
|
+ return err;
|
||
|
+ err = mcf_edma_request_channel(DMA_RX_TCD1,
|
||
|
+ ssi_audio_dma_capture_handler,
|
||
|
+ NULL,
|
||
|
+ MCF_SSI_AUDIO_IRQ_LEVEL,
|
||
|
+ substream,
|
||
|
+ &(chip->audio_device->lock),
|
||
|
+ id);
|
||
|
+ return err;
|
||
|
+}
|
||
|
+
|
||
|
+static inline void ssi_audio_init_dma(void)
|
||
|
+{
|
||
|
+ /* SSI DMA Signals mapped to DMA request */
|
||
|
+ MCF_CCM_MISCCR &= ~MCF_CCM_MISCCR_TIM_DMA;
|
||
|
+}
|
||
|
+
|
||
|
+static void ssi_audio_adjust_codec_speed(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ ssi_audio_disable_ssi();
|
||
|
+
|
||
|
+ if (substream->runtime->format == SNDRV_PCM_FORMAT_S16_BE) {
|
||
|
+ MCF_SSI_CCR = MCF_SSI_CCR_WL(7) | /* 16 bit word length */
|
||
|
+ MCF_SSI_CCR_DC(1); /* Frame rate divider */
|
||
|
+ }
|
||
|
+
|
||
|
+ switch (substream->runtime->rate) {
|
||
|
+ case 8000:
|
||
|
+#if defined(CONFIG_M532x) || defined(CONFIG_M537x)
|
||
|
+ MCF_CCM_CDR = (MCF_CCM_CDR | MCF_CCM_CDR_SSIDIV(0x20))
|
||
|
+ | MCF_CCM_CDR_SSIDIV(MCF_SSI_AUDIO_SSDIV_VALUE_1);
|
||
|
+#else
|
||
|
+ MCF_CCM_CDR = (MCF_CCM_CDR & ~MCF_CCM_CDR_SSIDIV(0xFF)) |
|
||
|
+ MCF_CCM_CDR_SSIDIV(MCF_SSI_AUDIO_SSDIV_VALUE_1);
|
||
|
+#endif
|
||
|
+ MCF_SSI_CCR |= MCF_SSI_CCR_PM(11);
|
||
|
+ mcf_codec_spi_write(TLV320AIC23_CODEC_SAMPLE_RATE_REG,
|
||
|
+ TLV320AIC23_CODEC_SAMPLERATE_REG_8KHZ);
|
||
|
+ break;
|
||
|
+ case 11000:
|
||
|
+ case 11025:
|
||
|
+#if defined(CONFIG_M532x) || defined(CONFIG_M537x)
|
||
|
+ MCF_CCM_CDR = (MCF_CCM_CDR & ~MCF_CCM_CDR_SSIDIV(0x3F)) |
|
||
|
+ MCF_CCM_CDR_SSIDIV(0x2B);
|
||
|
+ MCF_SSI_CCR |= MCF_SSI_CCR_PM(11);
|
||
|
+#else
|
||
|
+ MCF_CCM_CDR = (MCF_CCM_CDR & ~MCF_CCM_CDR_SSIDIV(0xFF)) |
|
||
|
+ MCF_CCM_CDR_SSIDIV(MCF_SSI_AUDIO_SSDIV_VALUE_3);
|
||
|
+ MCF_SSI_CCR |= MCF_SSI_CCR_PM(9);
|
||
|
+#endif
|
||
|
+ mcf_codec_spi_write(TLV320AIC23_CODEC_SAMPLE_RATE_REG,
|
||
|
+ TLV320AIC23_CODEC_SAMPLERATE_REG_11KHZ);
|
||
|
+ break;
|
||
|
+ case 16000:
|
||
|
+#if defined(CONFIG_M532x) || defined(CONFIG_M537x)
|
||
|
+ MCF_CCM_CDR = (MCF_CCM_CDR | MCF_CCM_CDR_SSIDIV(0x20))
|
||
|
+ | MCF_CCM_CDR_SSIDIV(MCF_SSI_AUDIO_SSDIV_VALUE_1);
|
||
|
+#else
|
||
|
+ MCF_CCM_CDR = (MCF_CCM_CDR & ~MCF_CCM_CDR_SSIDIV(0xFF)) |
|
||
|
+ MCF_CCM_CDR_SSIDIV(MCF_SSI_AUDIO_SSDIV_VALUE_1);
|
||
|
+#endif
|
||
|
+ MCF_SSI_CCR |= MCF_SSI_CCR_PM(5);
|
||
|
+ mcf_codec_spi_write(TLV320AIC23_CODEC_SAMPLE_RATE_REG,
|
||
|
+ TLV320AIC23_CODEC_SAMPLERATE_REG_16KHZ);
|
||
|
+ break;
|
||
|
+ case 22000:
|
||
|
+ case 22050:
|
||
|
+#if defined(CONFIG_M532x) || defined(CONFIG_M537x)
|
||
|
+ MCF_CCM_CDR = (MCF_CCM_CDR & ~MCF_CCM_CDR_SSIDIV(0x3F)) |
|
||
|
+ MCF_CCM_CDR_SSIDIV(0x2B);
|
||
|
+ MCF_SSI_CCR |= MCF_SSI_CCR_PM(5);
|
||
|
+#else
|
||
|
+ MCF_CCM_CDR = (MCF_CCM_CDR & ~MCF_CCM_CDR_SSIDIV(0xFF)) |
|
||
|
+ MCF_CCM_CDR_SSIDIV(MCF_SSI_AUDIO_SSDIV_VALUE_3);
|
||
|
+ MCF_SSI_CCR |= MCF_SSI_CCR_PM(4);
|
||
|
+#endif
|
||
|
+ mcf_codec_spi_write(TLV320AIC23_CODEC_SAMPLE_RATE_REG,
|
||
|
+ TLV320AIC23_CODEC_SAMPLERATE_REG_22KHZ);
|
||
|
+ break;
|
||
|
+ case 48000:
|
||
|
+#if defined(CONFIG_M532x) || defined(CONFIG_M537x)
|
||
|
+ MCF_CCM_CDR = (MCF_CCM_CDR & ~MCF_CCM_CDR_SSIDIV(0x3F)) |
|
||
|
+ MCF_CCM_CDR_SSIDIV(MCF_SSI_AUDIO_SSDIV_VALUE_4);
|
||
|
+ MCF_SSI_CCR |= MCF_SSI_CCR_PM(3);
|
||
|
+#else
|
||
|
+ MCF_CCM_CDR = (MCF_CCM_CDR & ~MCF_CCM_CDR_SSIDIV(0xFF)) |
|
||
|
+ MCF_CCM_CDR_SSIDIV(MCF_SSI_AUDIO_SSDIV_VALUE_1);
|
||
|
+ MCF_SSI_CCR |= MCF_SSI_CCR_PM(1);
|
||
|
+#endif
|
||
|
+ mcf_codec_spi_write(TLV320AIC23_CODEC_SAMPLE_RATE_REG,
|
||
|
+ TLV320AIC23_CODEC_SAMPLERATE_REG_48KHZ);
|
||
|
+ break;
|
||
|
+ case 44000:
|
||
|
+ case 44100:
|
||
|
+ default:
|
||
|
+#if defined(CONFIG_M532x) || defined(CONFIG_M537x)
|
||
|
+ MCF_CCM_CDR = (MCF_CCM_CDR & ~MCF_CCM_CDR_SSIDIV(0x3F)) |
|
||
|
+ MCF_CCM_CDR_SSIDIV(0x2B);
|
||
|
+#else
|
||
|
+ MCF_CCM_CDR = (MCF_CCM_CDR & ~MCF_CCM_CDR_SSIDIV(0xFF)) |
|
||
|
+ MCF_CCM_CDR_SSIDIV(MCF_SSI_AUDIO_SSDIV_VALUE_2);
|
||
|
+#endif
|
||
|
+ MCF_SSI_CCR |= MCF_SSI_CCR_PM(2);
|
||
|
+ mcf_codec_spi_write(TLV320AIC23_CODEC_SAMPLE_RATE_REG,
|
||
|
+ TLV320AIC23_CODEC_SAMPLERATE_REG_44KHZ);
|
||
|
+ break;
|
||
|
+ }
|
||
|
+ DBG("MCF_CCM_CDR = 0x%x, MCF_SSI_CCR = 0x%x.\n",
|
||
|
+ MCF_CCM_CDR, MCF_SSI_CCR);
|
||
|
+}
|
||
|
+
|
||
|
+static void ssi_audio_codec_reset(void)
|
||
|
+{
|
||
|
+ mcf_codec_spi_write(CODEC_RESET_REG, 0); /* reset the audio chip */
|
||
|
+ udelay(2500); /* wait for reset */
|
||
|
+}
|
||
|
+
|
||
|
+static void
|
||
|
+ssi_audio_init_codec_for_playback(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ mcf_codec_spi_write(CODEC_LEFT_IN_REG, g_lineinvol);
|
||
|
+ mcf_codec_spi_write(CODEC_RIGHT_IN_REG, g_lineinvol);
|
||
|
+ mcf_codec_spi_write(CODEC_POWER_DOWN_REG, 0x060);
|
||
|
+ mcf_codec_spi_write(CODEC_DIGITAL_IF_FMT_REG, 0x02);
|
||
|
+ mcf_codec_spi_write(CODEC_DIGITAL_APATH_REG, 0x006);
|
||
|
+ mcf_codec_spi_write(CODEC_DIGITAL_IF_ACT_REG, 0x001);
|
||
|
+ mcf_codec_spi_write(CODEC_ANALOG_APATH_REG, g_analogpath);
|
||
|
+ mcf_codec_spi_write(CODEC_LEFT_HP_VOL_REG, g_mastervol);
|
||
|
+ mcf_codec_spi_write(CODEC_RIGHT_HP_VOL_REG, g_mastervol);
|
||
|
+}
|
||
|
+
|
||
|
+static void
|
||
|
+ssi_audio_init_codec_for_capture(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ mcf_codec_spi_write(CODEC_LEFT_IN_REG, g_lineinvol);
|
||
|
+ mcf_codec_spi_write(CODEC_RIGHT_IN_REG, g_lineinvol);
|
||
|
+ mcf_codec_spi_write(CODEC_POWER_DOWN_REG, 0x060);
|
||
|
+ mcf_codec_spi_write(CODEC_DIGITAL_IF_FMT_REG, 0x02);
|
||
|
+ mcf_codec_spi_write(CODEC_DIGITAL_APATH_REG, 0x006);
|
||
|
+ mcf_codec_spi_write(CODEC_DIGITAL_IF_ACT_REG, 0x001);
|
||
|
+ mcf_codec_spi_write(CODEC_ANALOG_APATH_REG, g_analogpath);
|
||
|
+ mcf_codec_spi_write(CODEC_LEFT_HP_VOL_REG, g_mastervol);
|
||
|
+ mcf_codec_spi_write(CODEC_RIGHT_HP_VOL_REG, g_mastervol);
|
||
|
+}
|
||
|
+
|
||
|
+static void ssi_audio_chip_init(void)
|
||
|
+{
|
||
|
+ int chip_initialized = 0;
|
||
|
+ if (chip_initialized == 1)
|
||
|
+ return;
|
||
|
+
|
||
|
+ ssi_audio_init_dma();
|
||
|
+ /* Enable the SSI pins */
|
||
|
+#if defined(CONFIG_M5227x)
|
||
|
+ MCF_GPIO_PAR_UART = (MCF_GPIO_PAR_UART
|
||
|
+ &~MCF_GPIO_PAR_UART_PAR_U1TXD(0xF)
|
||
|
+ &~MCF_GPIO_PAR_UART_PAR_U1RXD(0xF)
|
||
|
+ &~MCF_GPIO_PAR_UART_PAR_U1RTS(0xF)
|
||
|
+ &~MCF_GPIO_PAR_UART_PAR_U1CTS(0xF))
|
||
|
+ | MCF_GPIO_PAR_UART_PAR_U1CTS_SSI_BCLK
|
||
|
+ | MCF_GPIO_PAR_UART_PAR_U1RTS_SSI_FS
|
||
|
+ | MCF_GPIO_PAR_UART_PAR_U1RXD_SSI_RXD
|
||
|
+ | MCF_GPIO_PAR_UART_PAR_U1TXD_SSI_TXD;
|
||
|
+
|
||
|
+ MCF_GPIO_PAR_TIMER = (MCF_GPIO_PAR_TIMER
|
||
|
+ &~MCF_GPIO_PAR_TIMER_PAR_T3IN(0xF))
|
||
|
+ | MCF_GPIO_PAR_TIMER_PAR_T3IN_SSI_MCLK;
|
||
|
+#endif
|
||
|
+#if defined(CONFIG_M532x)
|
||
|
+ MCF_GPIO_PAR_SSI = (0
|
||
|
+ | MCF_GPIO_PAR_SSI_PAR_MCLK
|
||
|
+ | MCF_GPIO_PAR_SSI_PAR_TXD(3)
|
||
|
+ | MCF_GPIO_PAR_SSI_PAR_RXD(3)
|
||
|
+ | MCF_GPIO_PAR_SSI_PAR_FS(3)
|
||
|
+ | MCF_GPIO_PAR_SSI_PAR_BCLK(3));
|
||
|
+#endif
|
||
|
+#if defined(CONFIG_M537x)
|
||
|
+ MCF_GPIO_PAR_UART = (MCF_GPIO_PAR_UART
|
||
|
+ &~MCF_GPIO_PAR_UART_PAR_UTXD1(0xF)
|
||
|
+ &~MCF_GPIO_PAR_UART_PAR_URXD1(0xF)
|
||
|
+ &~MCF_GPIO_PAR_UART_PAR_URTS1(0xF)
|
||
|
+ &~MCF_GPIO_PAR_UART_PAR_UCTS1(0xF))
|
||
|
+ | MCF_GPIO_PAR_UART_PAR_UCTS1_SSI_BCLK
|
||
|
+ | MCF_GPIO_PAR_UART_PAR_URTS1_SSI_FS
|
||
|
+ | MCF_GPIO_PAR_UART_PAR_URXD1_SSI_RXD
|
||
|
+ | MCF_GPIO_PAR_UART_PAR_UTXD1_SSI_TXD;
|
||
|
+
|
||
|
+ MCF_GPIO_PAR_IRQ = MCF_GPIO_PAR_IRQ_PAR_IRQ4(1);
|
||
|
+#endif
|
||
|
+#if defined(CONFIG_M5301x)
|
||
|
+ MCF_GPIO_PAR_SSIH = (MCF_GPIO_PAR_SSIH_PAR_RXD_SSI_RXD |
|
||
|
+ MCF_GPIO_PAR_SSIH_PAR_TXD_SSI_TXD |
|
||
|
+ MCF_GPIO_PAR_SSIH_PAR_FS_SSI_FS |
|
||
|
+ MCF_GPIO_PAR_SSIH_PAR_MCLK_SSI_MCLK);
|
||
|
+ MCF_GPIO_PAR_SSIL = MCF_GPIO_PAR_SSIL_PAR_BCLK_SSI_BCLK;
|
||
|
+#endif
|
||
|
+#if defined(CONFIG_M5445X)
|
||
|
+ MCF_GPIO_PAR_SSI = (MCF_GPIO_PAR_SSI_MCLK |
|
||
|
+ MCF_GPIO_PAR_SSI_STXD_STXD |
|
||
|
+ MCF_GPIO_PAR_SSI_SRXD_SRXD |
|
||
|
+ MCF_GPIO_PAR_SSI_FS_FS |
|
||
|
+ MCF_GPIO_PAR_SSI_BCLK_BCLK);
|
||
|
+#endif
|
||
|
+ chip_initialized = 1;
|
||
|
+}
|
||
|
+
|
||
|
+static void ssi_audio_init_ssi_playback(void)
|
||
|
+{
|
||
|
+ /* Issue a SSI reset */
|
||
|
+ MCF_SSI_CR &= ~MCF_SSI_CR_SSI_EN;
|
||
|
+
|
||
|
+ /* SSI module uses internal CPU clock */
|
||
|
+ MCF_CCM_MISCCR |= MCF_CCM_MISCCR_SSI_SRC;
|
||
|
+#if defined(CONFIG_M5445X) || defined(CONFIG_M532x) || defined(CONFIG_M537x) \
|
||
|
+ || defined(CONFIG_M5227x)
|
||
|
+ MCF_CCM_MISCCR |= MCF_CCM_MISCCR_SSI_PUE | MCF_CCM_MISCCR_SSI_PUS;
|
||
|
+#endif
|
||
|
+#if defined(CONFIG_M5301x)
|
||
|
+ MCF_GPIO_PCRH |= MCF_GPIO_PCRH_SSI_PUS | MCF_GPIO_PCRH_SSI_PUE;
|
||
|
+#endif
|
||
|
+ MCF_SSI_CR = MCF_SSI_CR_CIS |
|
||
|
+ MCF_SSI_CR_TCH | /* Enable two channel mode */
|
||
|
+ MCF_SSI_CR_MCE | /* clock out on SSI_MCLK pin */
|
||
|
+ MCF_SSI_CR_I2S_MASTER | /* I2S master mode */
|
||
|
+ MCF_SSI_CR_SYN | /* Enable synchronous mode */
|
||
|
+ MCF_SSI_CR_NET; /* Auto set by I2S Master */
|
||
|
+
|
||
|
+ MCF_SSI_TCR = 0 |
|
||
|
+ /* internally generated bit clock */
|
||
|
+ MCF_SSI_TCR_TXDIR |
|
||
|
+ /* internally generated frame sync */
|
||
|
+ MCF_SSI_TCR_TFDIR |
|
||
|
+ /* Clock data on falling edge of bit clock */
|
||
|
+ MCF_SSI_TCR_TSCKP |
|
||
|
+ /* Frame sync active low */
|
||
|
+ MCF_SSI_TCR_TFSI |
|
||
|
+ /* TX frame sync 1 bit before data */
|
||
|
+ MCF_SSI_TCR_TEFS |
|
||
|
+ /* TX FIFO 0 enabled */
|
||
|
+ MCF_SSI_TCR_TFEN0 |
|
||
|
+ /* TX FIFO 1 enabled */
|
||
|
+ MCF_SSI_TCR_TFEN1 |
|
||
|
+ MCF_SSI_TCR_TXBIT0;
|
||
|
+
|
||
|
+ MCF_SSI_FCSR = MCF_SSI_FCSR_TFWM0(TXFWM) | MCF_SSI_FCSR_TFWM1(TXFWM);
|
||
|
+
|
||
|
+ MCF_SSI_IER = MCF_SSI_IER_TDMAE | /* DMA request enabled */
|
||
|
+ MCF_SSI_IER_TFE0 |
|
||
|
+ MCF_SSI_IER_TFE1; /* set by reset actually*/
|
||
|
+}
|
||
|
+
|
||
|
+static void ssi_audio_init_ssi_capture(void)
|
||
|
+{
|
||
|
+ /* Issue a SSI reset */
|
||
|
+ MCF_SSI_CR &= ~MCF_SSI_CR_SSI_EN;
|
||
|
+
|
||
|
+ /* SSI module uses internal CPU clock */
|
||
|
+ MCF_CCM_MISCCR |= MCF_CCM_MISCCR_SSI_SRC;
|
||
|
+#if defined(CONFIG_M5445X) || defined(CONFIG_M532x) || defined(CONFIG_M537x) \
|
||
|
+ || defined(CONFIG_M5227x)
|
||
|
+ MCF_CCM_MISCCR |= MCF_CCM_MISCCR_SSI_PUE | MCF_CCM_MISCCR_SSI_PUS;
|
||
|
+#endif
|
||
|
+#if defined(CONFIG_M5301x)
|
||
|
+ MCF_GPIO_PCRH |= MCF_GPIO_PCRH_SSI_PUS | MCF_GPIO_PCRH_SSI_PUE;
|
||
|
+#endif
|
||
|
+ MCF_SSI_CR = MCF_SSI_CR_CIS |
|
||
|
+ MCF_SSI_CR_TCH | /* Enable two channel mode */
|
||
|
+ MCF_SSI_CR_MCE | /* clock out on SSI_MCLK pin */
|
||
|
+ MCF_SSI_CR_I2S_MASTER | /* I2S master mode */
|
||
|
+ MCF_SSI_CR_SYN | /* Enable synchronous mode */
|
||
|
+ MCF_SSI_CR_NET; /* Auto set by I2S Master */
|
||
|
+
|
||
|
+ MCF_SSI_TCR = 0 |
|
||
|
+ /* internally generated bit clock */
|
||
|
+ MCF_SSI_TCR_TXDIR |
|
||
|
+ /* internally generated frame sync */
|
||
|
+ MCF_SSI_TCR_TFDIR |
|
||
|
+ /* Clock data on falling edge of bit clock */
|
||
|
+ MCF_SSI_TCR_TSCKP |
|
||
|
+ /* Frame sync active low */
|
||
|
+ MCF_SSI_TCR_TFSI |
|
||
|
+ /* TX frame sync 1 bit before data */
|
||
|
+ MCF_SSI_TCR_TEFS |
|
||
|
+ /* TX FIFO 0 enabled */
|
||
|
+ MCF_SSI_TCR_TFEN0 |
|
||
|
+ /* TX FIFO 1 enabled */
|
||
|
+ MCF_SSI_TCR_TFEN1 |
|
||
|
+ MCF_SSI_TCR_TXBIT0;
|
||
|
+
|
||
|
+ MCF_SSI_RCR = 0 |
|
||
|
+ /* Clock data on rising edge of bit clock */
|
||
|
+ MCF_SSI_RCR_RSCKP |
|
||
|
+ /* Frame sync active low */
|
||
|
+ MCF_SSI_RCR_RFSI |
|
||
|
+ /* RX frame sync 1 bit before data */
|
||
|
+ MCF_SSI_RCR_REFS |
|
||
|
+ /* RX FIFO 0 enabled */
|
||
|
+ MCF_SSI_RCR_RFEN0 |
|
||
|
+ /* RX FIFO 1 enabled */
|
||
|
+ MCF_SSI_RCR_RFEN1 |
|
||
|
+ MCF_SSI_RCR_RXBIT0; /* Auto set by I2S Master */
|
||
|
+
|
||
|
+ MCF_SSI_FCSR = MCF_SSI_FCSR_RFWM0(RXFWM) | MCF_SSI_FCSR_RFWM1(RXFWM);
|
||
|
+
|
||
|
+ /* interrupts */
|
||
|
+ MCF_SSI_IER = MCF_SSI_IER_RDMAE | /* DMA request enabled */
|
||
|
+ MCF_SSI_IER_RFF0 | /* rx FIFO 0 full */
|
||
|
+ MCF_SSI_IER_RFF1; /* rx FIFO 1 full */
|
||
|
+}
|
||
|
+
|
||
|
+static int snd_coldfire_playback_open(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ int err;
|
||
|
+ struct chip_spec *chip = snd_pcm_substream_chip(substream);
|
||
|
+ struct snd_pcm_runtime *runtime = substream->runtime;
|
||
|
+ struct dma_private *dma_private;
|
||
|
+ dma_addr_t tcd_buf_phys;
|
||
|
+
|
||
|
+ runtime->hw = snd_coldfire_playback_hw;
|
||
|
+ err = snd_pcm_hw_constraint_integer(runtime,
|
||
|
+ SNDRV_PCM_HW_PARAM_PERIODS);
|
||
|
+ if (err < 0) {
|
||
|
+ printk(KERN_ERR "invalid buffer size\n");
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+ /* to make sure period_bytes is the multiple of size of minor loops */
|
||
|
+ err = snd_pcm_hw_constraint_step(runtime, 0,
|
||
|
+ SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
|
||
|
+ HW_PERIODS_BYTES_STEP);
|
||
|
+ if (err < 0) {
|
||
|
+ printk(KERN_ERR "Error setting period_bytes step, "
|
||
|
+ "err=%d\n", err);
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+ err = snd_pcm_hw_constraint_list(substream->runtime, 0,
|
||
|
+ SNDRV_PCM_HW_PARAM_RATE,
|
||
|
+ &constraints_rates);
|
||
|
+ if (err < 0) {
|
||
|
+ printk(KERN_ERR "Error setting rate constraints, "
|
||
|
+ "err=%d\n", err);
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+ ssi_audio_chip_init();
|
||
|
+ ssi_audio_init_ssi_playback();
|
||
|
+ ssi_audio_init_codec_for_playback(substream);
|
||
|
+ err = ssi_audio_dma_request_playback_channel(substream);
|
||
|
+ if (err < 0) {
|
||
|
+ printk(KERN_ERR "Error requesting dma channel, err=%d\n", err);
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+
|
||
|
+ dma_private = dma_alloc_coherent(substream->pcm->dev,
|
||
|
+ sizeof(struct dma_private), &tcd_buf_phys, GFP_KERNEL);
|
||
|
+
|
||
|
+ if (!dma_private) {
|
||
|
+ dev_err(substream->pcm->card->dev,
|
||
|
+ "can't allocate DMA private data\n");
|
||
|
+ return -ENOMEM;
|
||
|
+ }
|
||
|
+
|
||
|
+ dma_private->tcd_buf_phys = tcd_buf_phys;
|
||
|
+ runtime->private_data = dma_private;
|
||
|
+
|
||
|
+ chip->offset = 0;
|
||
|
+ g_tx_dmaing = 0;
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int snd_coldfire_capture_open(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ int err;
|
||
|
+ struct chip_spec *chip = snd_pcm_substream_chip(substream);
|
||
|
+ struct snd_pcm_runtime *runtime = substream->runtime;
|
||
|
+ struct dma_private *dma_private;
|
||
|
+ dma_addr_t tcd_buf_phys;
|
||
|
+
|
||
|
+ runtime->hw = snd_coldfire_capture_hw;
|
||
|
+
|
||
|
+ err = snd_pcm_hw_constraint_integer(runtime,
|
||
|
+ SNDRV_PCM_HW_PARAM_PERIODS);
|
||
|
+ if (err < 0) {
|
||
|
+ printk(KERN_ERR "invalid buffer size\n");
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+ /* to make sure period_bytes is the multiple of size of minor loops */
|
||
|
+ err = snd_pcm_hw_constraint_step(runtime, 0,
|
||
|
+ SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
|
||
|
+ HW_PERIODS_BYTES_STEP);
|
||
|
+ if (err < 0) {
|
||
|
+ printk(KERN_ERR "Error setting period_bytes step, "
|
||
|
+ "err=%d\n", err);
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+ err = snd_pcm_hw_constraint_list(substream->runtime, 0,
|
||
|
+ SNDRV_PCM_HW_PARAM_RATE,
|
||
|
+ &constraints_rates);
|
||
|
+ if (err < 0) {
|
||
|
+ printk(KERN_ERR "Error setting pcm_hw_constraint_list, "
|
||
|
+ "err=%d\n", err);
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+
|
||
|
+ ssi_audio_chip_init();
|
||
|
+ ssi_audio_init_ssi_capture();
|
||
|
+ ssi_audio_init_codec_for_capture(substream);
|
||
|
+ err = ssi_audio_dma_request_capture_channel(substream);
|
||
|
+ if (err < 0) {
|
||
|
+ printk(KERN_ERR "Error requesting dma channel, err=%d\n", err);
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+
|
||
|
+ dma_private = dma_alloc_coherent(substream->pcm->dev,
|
||
|
+ sizeof(struct dma_private), &tcd_buf_phys, GFP_KERNEL);
|
||
|
+
|
||
|
+ if (!dma_private) {
|
||
|
+ dev_err(substream->pcm->card->dev,
|
||
|
+ "can't allocate DMA private data\n");
|
||
|
+ return -ENOMEM;
|
||
|
+ }
|
||
|
+ dma_private->tcd_buf_phys = tcd_buf_phys;
|
||
|
+ dma_private->dma_buf_phys = substream->dma_buffer.addr;
|
||
|
+
|
||
|
+ runtime->private_data = dma_private;
|
||
|
+
|
||
|
+ chip->offset = 0;
|
||
|
+ g_rx_dmaing = 0;
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int snd_coldfire_playback_close(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ struct dma_private *dma_private = substream->runtime->private_data;
|
||
|
+
|
||
|
+ ssi_audio_dma_playback_stop();
|
||
|
+ mcf_edma_free_channel(DMA_TX_TCD0, substream);
|
||
|
+ mcf_edma_free_channel(DMA_TX_TCD1, substream);
|
||
|
+ if (dma_private) {
|
||
|
+ dma_free_coherent(substream->pcm->dev,
|
||
|
+ sizeof(struct dma_private),
|
||
|
+ dma_private, dma_private->tcd_buf_phys);
|
||
|
+ substream->runtime->private_data = NULL;
|
||
|
+ }
|
||
|
+ ssi_audio_disable_ssi();
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int snd_coldfire_capture_close(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ struct dma_private *dma_private = substream->runtime->private_data;
|
||
|
+
|
||
|
+ ssi_audio_dma_capture_stop();
|
||
|
+ mcf_edma_free_channel(DMA_RX_TCD0, substream);
|
||
|
+ mcf_edma_free_channel(DMA_RX_TCD1, substream);
|
||
|
+ /* Deallocate the fsl_dma_private structure */
|
||
|
+ if (dma_private) {
|
||
|
+ dma_free_coherent(substream->pcm->dev,
|
||
|
+ sizeof(struct dma_private),
|
||
|
+ dma_private, dma_private->tcd_buf_phys);
|
||
|
+ substream->runtime->private_data = NULL;
|
||
|
+ }
|
||
|
+ ssi_audio_disable_ssi();
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int snd_coldfire_pcm_hw_params(struct snd_pcm_substream *substream,
|
||
|
+ struct snd_pcm_hw_params *hw_params)
|
||
|
+{
|
||
|
+ int err;
|
||
|
+
|
||
|
+ /* set runtime buffer */
|
||
|
+ err = snd_pcm_lib_malloc_pages(
|
||
|
+ substream, params_buffer_bytes(hw_params));
|
||
|
+ if (err < 0)
|
||
|
+ printk(KERN_ERR "Error allocating pages, err=%d\n", err);
|
||
|
+ return err;
|
||
|
+}
|
||
|
+
|
||
|
+static int snd_coldfire_pcm_hw_free(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ /* free the memory if was newly allocated */
|
||
|
+ return snd_pcm_lib_free_pages(substream);
|
||
|
+}
|
||
|
+
|
||
|
+static int
|
||
|
+snd_coldfire_pcm_playback_prepare(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ int err;
|
||
|
+
|
||
|
+ if (g_tx_dmaing == 1)
|
||
|
+ return 0;
|
||
|
+
|
||
|
+ ssi_audio_adjust_codec_speed(substream);
|
||
|
+ err = ssi_audio_dma_playback_config(substream);
|
||
|
+ if (err < 0) {
|
||
|
+ printk(KERN_ERR "Error configuring playback, "
|
||
|
+ "err=%d\n", err);
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+
|
||
|
+ ssi_audio_dma_playback_start();
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int snd_coldfire_pcm_capture_prepare(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ int err;
|
||
|
+
|
||
|
+ if (g_rx_dmaing == 1)
|
||
|
+ return 0;
|
||
|
+
|
||
|
+ ssi_audio_adjust_codec_speed(substream);
|
||
|
+ err = ssi_audio_dma_capture_config(substream);
|
||
|
+ if (err < 0) {
|
||
|
+ printk(KERN_ERR "Error configuring capture, "
|
||
|
+ "err=%d\n", err);
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+ ssi_audio_dma_capture_start();
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int
|
||
|
+snd_coldfire_pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd)
|
||
|
+{
|
||
|
+ switch (cmd) {
|
||
|
+ case SNDRV_PCM_TRIGGER_START:
|
||
|
+ ssi_audio_enable_ssi_playback();
|
||
|
+ break;
|
||
|
+ case SNDRV_PCM_TRIGGER_STOP:
|
||
|
+ ssi_audio_disable_ssi_playback();
|
||
|
+ break;
|
||
|
+ default:
|
||
|
+ printk(KERN_ERR "Unsupported trigger command, cmd=%d\n", cmd);
|
||
|
+ return -EINVAL;
|
||
|
+ }
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int
|
||
|
+snd_coldfire_pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd)
|
||
|
+{
|
||
|
+ switch (cmd) {
|
||
|
+ case SNDRV_PCM_TRIGGER_START:
|
||
|
+ ssi_audio_enable_ssi_capture();
|
||
|
+ break;
|
||
|
+ case SNDRV_PCM_TRIGGER_STOP:
|
||
|
+ ssi_audio_disable_ssi_capture();
|
||
|
+ break;
|
||
|
+ default:
|
||
|
+ printk(KERN_ERR "Unsupported trigger command, cmd=%d\n", cmd);
|
||
|
+ return -EINVAL;
|
||
|
+ }
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static snd_pcm_uframes_t
|
||
|
+snd_coldfire_pcm_playback_pointer(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ struct snd_pcm_runtime *runtime = substream->runtime;
|
||
|
+ struct dma_private *dma_private = runtime->private_data;
|
||
|
+ snd_pcm_uframes_t pointer;
|
||
|
+ u32 offset;
|
||
|
+
|
||
|
+ offset = (u32)(MCF_EDMA_TCD_SADDR(DMA_TX_TCD0) -
|
||
|
+ dma_private->dma_buf_phys);
|
||
|
+ if (runtime->format == SNDRV_PCM_FORMAT_S16_BE)
|
||
|
+ pointer = offset / (runtime->channels == 1 ? 2 : 4);
|
||
|
+ else
|
||
|
+ pointer = 0;
|
||
|
+
|
||
|
+ return pointer;
|
||
|
+}
|
||
|
+
|
||
|
+static snd_pcm_uframes_t
|
||
|
+snd_coldfire_pcm_capture_pointer(struct snd_pcm_substream *substream)
|
||
|
+{
|
||
|
+ struct snd_pcm_runtime *runtime = substream->runtime;
|
||
|
+ struct dma_private *dma_private = runtime->private_data;
|
||
|
+ snd_pcm_uframes_t pointer;
|
||
|
+ u32 offset;
|
||
|
+
|
||
|
+ offset = (u32)(MCF_EDMA_TCD_DADDR(DMA_RX_TCD0) -
|
||
|
+ dma_private->dma_buf_phys);
|
||
|
+ if (runtime->format == SNDRV_PCM_FORMAT_S16_BE)
|
||
|
+ pointer = offset / (runtime->channels == 1 ? 2 : 4);
|
||
|
+ else
|
||
|
+ pointer = 0;
|
||
|
+
|
||
|
+ return pointer;
|
||
|
+}
|
||
|
+
|
||
|
+static struct snd_pcm_ops snd_coldfire_playback_ops = {
|
||
|
+ .open = snd_coldfire_playback_open,
|
||
|
+ .close = snd_coldfire_playback_close,
|
||
|
+ .ioctl = snd_pcm_lib_ioctl,
|
||
|
+ .hw_params = snd_coldfire_pcm_hw_params,
|
||
|
+ .hw_free = snd_coldfire_pcm_hw_free,
|
||
|
+ .prepare = snd_coldfire_pcm_playback_prepare,
|
||
|
+ .trigger = snd_coldfire_pcm_playback_trigger,
|
||
|
+ .pointer = snd_coldfire_pcm_playback_pointer,
|
||
|
+};
|
||
|
+
|
||
|
+static struct snd_pcm_ops snd_coldfire_capture_ops = {
|
||
|
+ .open = snd_coldfire_capture_open,
|
||
|
+ .close = snd_coldfire_capture_close,
|
||
|
+ .ioctl = snd_pcm_lib_ioctl,
|
||
|
+ .hw_params = snd_coldfire_pcm_hw_params,
|
||
|
+ .hw_free = snd_coldfire_pcm_hw_free,
|
||
|
+ .prepare = snd_coldfire_pcm_capture_prepare,
|
||
|
+ .trigger = snd_coldfire_pcm_capture_trigger,
|
||
|
+ .pointer = snd_coldfire_pcm_capture_pointer,
|
||
|
+};
|
||
|
+
|
||
|
+static int snd_coldfire_new_pcm(struct chip_spec *chip)
|
||
|
+{
|
||
|
+ struct snd_pcm *pcm;
|
||
|
+ int err;
|
||
|
+
|
||
|
+ err = snd_pcm_new(chip->card, "coldfire", 0, 1, 1,
|
||
|
+ &pcm);
|
||
|
+ if (err < 0) {
|
||
|
+ printk(KERN_ERR "Error creating new pcm, err=%d\n", err);
|
||
|
+ return err;
|
||
|
+ }
|
||
|
+ pcm->private_data = chip;
|
||
|
+ strncpy(pcm->name, SOUND_CARD_NAME, sizeof(pcm->name));
|
||
|
+ chip->pcm = pcm;
|
||
|
+ pcm->info_flags = 0;
|
||
|
+
|
||
|
+ /* set operators */
|
||
|
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
|
||
|
+ &snd_coldfire_playback_ops);
|
||
|
+ snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
|
||
|
+ &snd_coldfire_capture_ops);
|
||
|
+ /* pre-allocation of buffers */
|
||
|
+ err = snd_pcm_lib_preallocate_pages_for_all(
|
||
|
+ pcm,
|
||
|
+ SNDRV_DMA_TYPE_CONTINUOUS,
|
||
|
+ snd_dma_continuous_data(GFP_KERNEL),
|
||
|
+ MAX_BUFFER_SIZE,
|
||
|
+ MAX_BUFFER_SIZE);
|
||
|
+
|
||
|
+ if (!pcm->streams[0].substream->dma_buffer.addr)
|
||
|
+ pcm->streams[0].substream->dma_buffer.addr =
|
||
|
+ virt_to_phys(pcm->streams[0].substream->dma_buffer.area);
|
||
|
+ if (!pcm->streams[1].substream->dma_buffer.addr)
|
||
|
+ pcm->streams[1].substream->dma_buffer.addr =
|
||
|
+ virt_to_phys(pcm->streams[1].substream->dma_buffer.area);
|
||
|
+
|
||
|
+ if (err) {
|
||
|
+ printk(KERN_ERR
|
||
|
+ "Can't pre-allocate DMA buffer (size=%u)\n",
|
||
|
+ MAX_BUFFER_SIZE);
|
||
|
+ return -ENOMEM;
|
||
|
+ }
|
||
|
+
|
||
|
+ chip->audio_device =
|
||
|
+ kmalloc(sizeof(struct tlv320a_audio_device), GFP_DMA);
|
||
|
+
|
||
|
+ if (!chip->audio_device) {
|
||
|
+ snd_pcm_lib_preallocate_free_for_all(pcm);
|
||
|
+ printk(KERN_ERR
|
||
|
+ "Can't allocate buffer for audio device\n");
|
||
|
+ return -ENOMEM;
|
||
|
+ }
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int tlv320a_set_out_volume(unsigned char value)
|
||
|
+{
|
||
|
+ unsigned char data;
|
||
|
+
|
||
|
+ if (value > TLV320A_VOL_MAX)
|
||
|
+ data = TLV320A_VOL_MAX;
|
||
|
+ else
|
||
|
+ data = value;
|
||
|
+
|
||
|
+ if (mcf_codec_spi_write(CODEC_LEFT_HP_VOL_REG, data) < 0)
|
||
|
+ return -EINVAL;
|
||
|
+
|
||
|
+ if (mcf_codec_spi_write(CODEC_RIGHT_HP_VOL_REG, data) < 0)
|
||
|
+ return -EINVAL;
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int tlv320a_info_out_volume(struct snd_kcontrol *kcontrol,
|
||
|
+ struct snd_ctl_elem_info *uinfo)
|
||
|
+{
|
||
|
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
||
|
+ uinfo->count = 1;
|
||
|
+ uinfo->value.integer.min = TLV320A_VOL_MIN;
|
||
|
+ uinfo->value.integer.max = TLV320A_VOL_MAX;
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int tlv320a_get_out_volume(struct snd_kcontrol *kcontrol,
|
||
|
+ struct snd_ctl_elem_value *ucontrol)
|
||
|
+{
|
||
|
+ ucontrol->value.integer.value[0] = g_mastervol;
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int tlv320a_put_out_volume(struct snd_kcontrol *kcontrol,
|
||
|
+ struct snd_ctl_elem_value *ucontrol)
|
||
|
+{
|
||
|
+ unsigned char vol;
|
||
|
+ int change;
|
||
|
+
|
||
|
+ vol = ucontrol->value.integer.value[0];
|
||
|
+
|
||
|
+ if (vol > TLV320A_VOL_MAX)
|
||
|
+ return -EINVAL;
|
||
|
+
|
||
|
+ change = (g_mastervol != vol);
|
||
|
+ if (change) {
|
||
|
+ g_mastervol = vol;
|
||
|
+ tlv320a_set_out_volume(vol);
|
||
|
+ }
|
||
|
+ return change;
|
||
|
+}
|
||
|
+
|
||
|
+static int tlv320a_set_linein_volume(unsigned char value)
|
||
|
+{
|
||
|
+ unsigned char data;
|
||
|
+
|
||
|
+ if (value > TLV320A_LINEIN_MAX)
|
||
|
+ data = TLV320A_LINEIN_MAX;
|
||
|
+ else
|
||
|
+ data = value;
|
||
|
+
|
||
|
+ if (mcf_codec_spi_write(CODEC_LEFT_IN_REG, data) < 0)
|
||
|
+ return -EINVAL;
|
||
|
+
|
||
|
+ if (mcf_codec_spi_write(CODEC_RIGHT_IN_REG, data) < 0)
|
||
|
+ return -EINVAL;
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int tlv320a_info_linein_volume(struct snd_kcontrol *kcontrol,
|
||
|
+ struct snd_ctl_elem_info *uinfo)
|
||
|
+{
|
||
|
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
||
|
+ uinfo->count = 1;
|
||
|
+ uinfo->value.integer.min = 0;
|
||
|
+ uinfo->value.integer.max = TLV320A_LINEIN_MAX;
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int tlv320a_get_linein_volume(struct snd_kcontrol *kcontrol,
|
||
|
+ struct snd_ctl_elem_value *ucontrol)
|
||
|
+{
|
||
|
+ ucontrol->value.integer.value[0] = g_lineinvol;
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int tlv320a_put_linein_volume(struct snd_kcontrol *kcontrol,
|
||
|
+ struct snd_ctl_elem_value *ucontrol)
|
||
|
+{
|
||
|
+ unsigned char vol;
|
||
|
+ int change;
|
||
|
+
|
||
|
+ vol = ucontrol->value.integer.value[0];
|
||
|
+
|
||
|
+ if (vol > TLV320A_LINEIN_MAX)
|
||
|
+ return -EINVAL;
|
||
|
+
|
||
|
+ change = (g_lineinvol != vol);
|
||
|
+ if (change) {
|
||
|
+ g_lineinvol = vol;
|
||
|
+ tlv320a_set_linein_volume(vol);
|
||
|
+ }
|
||
|
+ return change;
|
||
|
+}
|
||
|
+
|
||
|
+#define tlv320a_info_mic_boost snd_ctl_boolean_mono_info
|
||
|
+static int tlv320a_get_mic_boost(struct snd_kcontrol *kcontrol,
|
||
|
+ struct snd_ctl_elem_value *ucontrol)
|
||
|
+{
|
||
|
+ ucontrol->value.integer.value[0] = ((g_analogpath & 0x1) == 1);
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int tlv320a_put_mic_boost(struct snd_kcontrol *kcontrol,
|
||
|
+ struct snd_ctl_elem_value *ucontrol)
|
||
|
+{
|
||
|
+ int oldboost, newboost;
|
||
|
+ u8 data;
|
||
|
+ if (ucontrol->value.integer.value[0] == 1)
|
||
|
+ newboost = 1;
|
||
|
+ else
|
||
|
+ newboost = 0;
|
||
|
+ oldboost = g_analogpath & 0x1;
|
||
|
+
|
||
|
+ if (oldboost == newboost)
|
||
|
+ return 0;
|
||
|
+ data = (g_analogpath & 0xfe) | (newboost & 0x1);
|
||
|
+ if (mcf_codec_spi_write(CODEC_ANALOG_APATH_REG, data) < 0)
|
||
|
+ return -EINVAL;
|
||
|
+ g_analogpath = data;
|
||
|
+ return 1;
|
||
|
+}
|
||
|
+
|
||
|
+static int tlv320a_info_capture_source(struct snd_kcontrol *kcontrol,
|
||
|
+ struct snd_ctl_elem_info *uinfo)
|
||
|
+{
|
||
|
+ static char *texts[] = { "Line-In", "Microphone" };
|
||
|
+
|
||
|
+ uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
|
||
|
+ uinfo->count = 1;
|
||
|
+ uinfo->value.enumerated.items = 2;
|
||
|
+ if (uinfo->value.enumerated.item > 1)
|
||
|
+ uinfo->value.enumerated.item = 1;
|
||
|
+ strcpy(uinfo->value.enumerated.name,
|
||
|
+ texts[uinfo->value.enumerated.item]);
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int tlv320a_get_capture_source(struct snd_kcontrol *kcontrol,
|
||
|
+ struct snd_ctl_elem_value *ucontrol)
|
||
|
+{
|
||
|
+
|
||
|
+ ucontrol->value.enumerated.item[0] = ((g_analogpath & 0x4) == 0x4);
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static int tlv320a_put_capture_source(struct snd_kcontrol *kcontrol,
|
||
|
+ struct snd_ctl_elem_value *ucontrol)
|
||
|
+{
|
||
|
+ int oldinput, newinput;
|
||
|
+ u8 data;
|
||
|
+
|
||
|
+ if (ucontrol->value.enumerated.item[0] > 1)
|
||
|
+ return -EINVAL;
|
||
|
+
|
||
|
+ oldinput = (g_analogpath & 0x4) ? INPUT_MICROPHONE : INPUT_LINEIN;
|
||
|
+
|
||
|
+ if (ucontrol->value.enumerated.item[0])
|
||
|
+ newinput = INPUT_MICROPHONE;
|
||
|
+ else
|
||
|
+ newinput = INPUT_LINEIN;
|
||
|
+ if (oldinput == newinput)
|
||
|
+ return 0;
|
||
|
+ data = (g_analogpath & 0xfb) |
|
||
|
+ (newinput == INPUT_MICROPHONE ? 0x4 : 0);
|
||
|
+ if (mcf_codec_spi_write(CODEC_ANALOG_APATH_REG, data) < 0)
|
||
|
+ return -EINVAL;
|
||
|
+ g_analogpath = data;
|
||
|
+ return 1;
|
||
|
+}
|
||
|
+
|
||
|
+static struct snd_kcontrol_new tlv320_mixer_out __devinitdata = {
|
||
|
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
||
|
+ .name = "play volume",
|
||
|
+ .index = 0,
|
||
|
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
|
||
|
+ .info = tlv320a_info_out_volume,
|
||
|
+ .get = tlv320a_get_out_volume,
|
||
|
+ .put = tlv320a_put_out_volume,
|
||
|
+};
|
||
|
+
|
||
|
+static struct snd_kcontrol_new tlv320_mixer_linein __devinitdata = {
|
||
|
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
||
|
+ .name = "record volume",
|
||
|
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
|
||
|
+ .info = tlv320a_info_linein_volume,
|
||
|
+ .get = tlv320a_get_linein_volume,
|
||
|
+ .put = tlv320a_put_linein_volume,
|
||
|
+};
|
||
|
+
|
||
|
+static struct snd_kcontrol_new tlv320_mixer_capture_source __devinitdata = {
|
||
|
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
||
|
+ .name = "record source",
|
||
|
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
|
||
|
+ .info = tlv320a_info_capture_source,
|
||
|
+ .get = tlv320a_get_capture_source,
|
||
|
+ .put = tlv320a_put_capture_source,
|
||
|
+};
|
||
|
+
|
||
|
+static struct snd_kcontrol_new tlv320_mixer_mic_boost __devinitdata = {
|
||
|
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
||
|
+ .name = "mic Boost",
|
||
|
+ .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
|
||
|
+ .info = tlv320a_info_mic_boost,
|
||
|
+ .get = tlv320a_get_mic_boost,
|
||
|
+ .put = tlv320a_put_mic_boost,
|
||
|
+};
|
||
|
+
|
||
|
+static int __devinit coldfire_alsa_audio_probe(struct platform_device *dev)
|
||
|
+{
|
||
|
+ struct snd_card *card;
|
||
|
+ struct chip_spec *chip;
|
||
|
+ int err;
|
||
|
+
|
||
|
+ err = snd_card_create(-1, id, THIS_MODULE,
|
||
|
+ sizeof(struct chip_spec), &card);
|
||
|
+ if (err < 0)
|
||
|
+ return -ENOMEM;
|
||
|
+
|
||
|
+ chip = card->private_data;
|
||
|
+
|
||
|
+ chip->card = card;
|
||
|
+ card->dev = &dev->dev;
|
||
|
+
|
||
|
+ err = snd_coldfire_new_pcm(chip);
|
||
|
+ if (err < 0)
|
||
|
+ return -ENOMEM;
|
||
|
+
|
||
|
+ strcpy(card->driver, "coldfire");
|
||
|
+ strcpy(card->shortname, "Coldfire-TLV320A");
|
||
|
+ sprintf(card->longname, "Freescale Coldfire with TLV320A");
|
||
|
+
|
||
|
+ err = snd_card_register(card);
|
||
|
+ if (err == 0) {
|
||
|
+ pr_debug(KERN_INFO "Coldfire audio support initialized\n");
|
||
|
+ platform_set_drvdata(dev, card);
|
||
|
+ }
|
||
|
+
|
||
|
+ strcpy(chip->card->mixername, "TLV320A Volume");
|
||
|
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&tlv320_mixer_out, chip));
|
||
|
+ if (err)
|
||
|
+ goto error;
|
||
|
+ err = snd_ctl_add(chip->card, snd_ctl_new1(&tlv320_mixer_linein, chip));
|
||
|
+ if (err)
|
||
|
+ goto error;
|
||
|
+ err = snd_ctl_add(chip->card,
|
||
|
+ snd_ctl_new1(&tlv320_mixer_capture_source,
|
||
|
+ chip));
|
||
|
+ if (err)
|
||
|
+ goto error;
|
||
|
+ err = snd_ctl_add(chip->card,
|
||
|
+ snd_ctl_new1(&tlv320_mixer_mic_boost,
|
||
|
+ chip));
|
||
|
+ if (err)
|
||
|
+ goto error;
|
||
|
+ g_mastervol = TLV320A_VOL_INIT;
|
||
|
+ g_lineinvol = TLV320A_LINEIN_INIT;
|
||
|
+ g_analogpath = TLV320A_ANALOGPATH_INIT;
|
||
|
+ ssi_audio_codec_reset();
|
||
|
+ return 0;
|
||
|
+error:
|
||
|
+ kfree(card->private_data);
|
||
|
+ snd_card_free(card);
|
||
|
+ platform_set_drvdata(dev, NULL);
|
||
|
+ return err;
|
||
|
+}
|
||
|
+
|
||
|
+static int coldfire_alsa_audio_remove(struct platform_device *dev)
|
||
|
+{
|
||
|
+ struct snd_card *card;
|
||
|
+
|
||
|
+ card = platform_get_drvdata(dev);
|
||
|
+ kfree(card->private_data);
|
||
|
+ snd_card_free(card);
|
||
|
+ platform_set_drvdata(dev, NULL);
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static struct platform_driver coldfire_alsa_audio_driver = {
|
||
|
+ .probe = coldfire_alsa_audio_probe,
|
||
|
+ .remove = coldfire_alsa_audio_remove,
|
||
|
+ .driver = {
|
||
|
+ .name = SOUND_CARD_NAME,
|
||
|
+ },
|
||
|
+};
|
||
|
+
|
||
|
+static int __init coldfire_alsa_audio_init(void)
|
||
|
+{
|
||
|
+ int err;
|
||
|
+ err = platform_driver_register(&coldfire_alsa_audio_driver);
|
||
|
+ if (err < 0)
|
||
|
+ return err;
|
||
|
+
|
||
|
+ device = platform_device_register_simple(SOUND_CARD_NAME, -1, NULL, 0);
|
||
|
+ if (!IS_ERR(device)) {
|
||
|
+ if (platform_get_drvdata(device))
|
||
|
+ return 0;
|
||
|
+ platform_device_unregister(device);
|
||
|
+ platform_driver_unregister(&coldfire_alsa_audio_driver);
|
||
|
+ err = -ENODEV;
|
||
|
+ } else
|
||
|
+ err = PTR_ERR(device);
|
||
|
+
|
||
|
+ platform_driver_unregister(&coldfire_alsa_audio_driver);
|
||
|
+ return err;
|
||
|
+}
|
||
|
+
|
||
|
+static void __exit coldfire_alsa_audio_exit(void)
|
||
|
+{
|
||
|
+ platform_device_unregister(device);
|
||
|
+ platform_driver_unregister(&coldfire_alsa_audio_driver);
|
||
|
+}
|
||
|
+
|
||
|
+module_init(coldfire_alsa_audio_init);
|
||
|
+module_exit(coldfire_alsa_audio_exit);
|
||
|
+
|
||
|
+MODULE_DESCRIPTION("Coldfire driver for ALSA");
|
||
|
+MODULE_LICENSE("GPL");
|
||
|
+MODULE_SUPPORTED_DEVICE("{{TLV320A}}");
|
||
|
+
|
||
|
+module_param(id, charp, 0444);
|
||
|
+MODULE_PARM_DESC(id, "ID string for Coldfire + TLV320A soundcard.");
|
||
|
--- /dev/null
|
||
|
+++ b/sound/coldfire/snd-coldfire.h
|
||
|
@@ -0,0 +1,15 @@
|
||
|
+/*
|
||
|
+ * linux/sound/coldfire/snd-coldfire.h
|
||
|
+ *
|
||
|
+ * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All Rights Reserved.
|
||
|
+ *
|
||
|
+ * ALSA driver for Coldfire SSI
|
||
|
+ *
|
||
|
+ * This is free software; you can redistribute it and/or modify
|
||
|
+ * it under the terms of the GNU General Public License as published by
|
||
|
+ * the Free Software Foundation; either version 2 of the License, or
|
||
|
+ * (at your option) any later version.
|
||
|
+ */
|
||
|
+
|
||
|
+extern int mcf_codec_spi_write(u8 addr, u16 data);
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||
|
+
|