1 files changed, 137 insertions, 0 deletions

diff --git a/sound/soc/imx/mx27vis-aic32x4.c b/sound/soc/imx/mx27vis-aic32x4.c
new file mode 100644
index 000000000000..054110b91d42
--- /dev/null
+++ b/sound/soc/imx/mx27vis-aic32x4.c
@@ -0,0 +1,137 @@
+/*
+ * mx27vis-aic32x4.c
+ *
+ * Copyright 2011 Vista Silicon S.L.
+ *
+ * Author: Javier Martin <javier.martin@vista-silicon.com>
+ *
+ * This program 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <asm/mach-types.h>
+#include <mach/audmux.h>
+
+#include "../codecs/tlv320aic32x4.h"
+#include "imx-ssi.h"
+
+static int mx27vis_aic32x4_hw_params(struct snd_pcm_substream *substream,
+                            struct snd_pcm_hw_params *params)
+{
+        struct snd_soc_pcm_runtime *rtd = substream->private_data;
+        struct snd_soc_dai *codec_dai = rtd->codec_dai;
+        struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+        int ret;
+        u32 dai_format;
+
+        dai_format = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
+                SND_SOC_DAIFMT_CBM_CFM;
+
+        /* set codec DAI configuration */
+        snd_soc_dai_set_fmt(codec_dai, dai_format);
+
+        /* set cpu DAI configuration */
+        snd_soc_dai_set_fmt(cpu_dai, dai_format);
+
+        ret = snd_soc_dai_set_sysclk(codec_dai, 0,
+                                     25000000, SND_SOC_CLOCK_OUT);
+        if (ret) {
+                pr_err("%s: failed setting codec sysclk\n", __func__);
+                return ret;
+        }
+
+        ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
+                                SND_SOC_CLOCK_IN);
+        if (ret) {
+                pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
+                return ret;
+        }
+
+        return 0;
+}
+
+static struct snd_soc_ops mx27vis_aic32x4_snd_ops = {
+        .hw_params      = mx27vis_aic32x4_hw_params,
+};
+
+static struct snd_soc_dai_link mx27vis_aic32x4_dai = {
+        .name           = "tlv320aic32x4",
+        .stream_name    = "TLV320AIC32X4",
+        .codec_dai_name = "tlv320aic32x4-hifi",
+        .platform_name  = "imx-pcm-audio.0",
+        .codec_name     = "tlv320aic32x4.0-0018",
+        .cpu_dai_name   = "imx-ssi.0",
+        .ops            = &mx27vis_aic32x4_snd_ops,
+};
+
+static struct snd_soc_card mx27vis_aic32x4 = {
+        .name           = "visstrim_m10-audio",
+        .dai_link       = &mx27vis_aic32x4_dai,
+        .num_links      = 1,
+};
+
+static struct platform_device *mx27vis_aic32x4_snd_device;
+
+static int __init mx27vis_aic32x4_init(void)
+{
+        int ret;
+
+        mx27vis_aic32x4_snd_device = platform_device_alloc("soc-audio", -1);
+        if (!mx27vis_aic32x4_snd_device)
+                return -ENOMEM;
+
+        platform_set_drvdata(mx27vis_aic32x4_snd_device, &mx27vis_aic32x4);
+        ret = platform_device_add(mx27vis_aic32x4_snd_device);
+
+        if (ret) {
+                printk(KERN_ERR "ASoC: Platform device allocation failed\n");
+                platform_device_put(mx27vis_aic32x4_snd_device);
+        }
+
+        /* Connect SSI0 as clock slave to SSI1 external pins */
+        mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
+                        MXC_AUDMUX_V1_PCR_SYN |
+                        MXC_AUDMUX_V1_PCR_TFSDIR |
+                        MXC_AUDMUX_V1_PCR_TCLKDIR |
+                        MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) |
+                        MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1)
+        );
+        mxc_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1,
+                        MXC_AUDMUX_V1_PCR_SYN |
+                        MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
+        );
+
+        return ret;
+}
+
+static void __exit mx27vis_aic32x4_exit(void)
+{
+        platform_device_unregister(mx27vis_aic32x4_snd_device);
+}
+
+module_init(mx27vis_aic32x4_init);
+module_exit(mx27vis_aic32x4_exit);
+
+MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
+MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim");
+MODULE_LICENSE("GPL");