ASoC: imx: move audmux driver into sound/soc/imx
As audmux becomes a platform driver and its callers are all ASoC
machine drivers, there is no reason to keep it in arch folder, so
move it to sound/soc/imx.
One bonus point would be those ASoC machine drivers stop including
mach/audmux.h, since it's been moved to sound/soc/imx/imx-audmux.h.
This should be a move to the right direction in terms of single kernel
image goal.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/imx/Kconfig b/sound/soc/imx/Kconfig
index aa4294b..d3b7166 100644
--- a/sound/soc/imx/Kconfig
+++ b/sound/soc/imx/Kconfig
@@ -16,11 +16,15 @@
select SND_SOC_DMAENGINE_PCM
tristate
+config SND_SOC_IMX_AUDMUX
+ tristate
+
config SND_MXC_SOC_WM1133_EV1
tristate "Audio on the the i.MX31ADS with WM1133-EV1 fitted"
depends on MACH_MX31ADS_WM1133_EV1 && EXPERIMENTAL
select SND_SOC_WM8350
select SND_MXC_SOC_FIQ
+ select SND_SOC_IMX_AUDMUX
help
Enable support for audio on the i.MX31ADS with the WM1133-EV1
PMIC board with WM8835x fitted.
@@ -30,6 +34,7 @@
depends on MACH_IMX27_VISSTRIM_M10 && I2C
select SND_SOC_TLV320AIC32X4
select SND_MXC_SOC_MX2
+ select SND_SOC_IMX_AUDMUX
help
Say Y if you want to add support for SoC audio on Visstrim SM10
board with TLV320AIC32X4 codec.
@@ -40,6 +45,7 @@
select SND_SOC_AC97_BUS
select SND_SOC_WM9712
select SND_MXC_SOC_FIQ
+ select SND_SOC_IMX_AUDMUX
help
Say Y if you want to add support for SoC audio on Phytec phyCORE
and phyCARD boards in AC97 mode
@@ -53,6 +59,7 @@
depends on I2C
select SND_SOC_TLV320AIC23
select SND_MXC_SOC_FIQ
+ select SND_SOC_IMX_AUDMUX
help
Enable I2S based access to the TLV320AIC23B codec attached
to the SSI interface
diff --git a/sound/soc/imx/Makefile b/sound/soc/imx/Makefile
index d6d609b..5c40541 100644
--- a/sound/soc/imx/Makefile
+++ b/sound/soc/imx/Makefile
@@ -2,10 +2,12 @@
snd-soc-imx-objs := imx-ssi.o
snd-soc-imx-fiq-objs := imx-pcm-fiq.o
snd-soc-imx-mx2-objs := imx-pcm-dma-mx2.o
+snd-soc-imx-audmux-objs := imx-audmux.o
obj-$(CONFIG_SND_IMX_SOC) += snd-soc-imx.o
obj-$(CONFIG_SND_MXC_SOC_FIQ) += snd-soc-imx-fiq.o
obj-$(CONFIG_SND_MXC_SOC_MX2) += snd-soc-imx-mx2.o
+obj-$(CONFIG_SND_SOC_IMX_AUDMUX) += snd-soc-imx-audmux.o
# i.MX Machine Support
snd-soc-eukrea-tlv320-objs := eukrea-tlv320.o
diff --git a/sound/soc/imx/eukrea-tlv320.c b/sound/soc/imx/eukrea-tlv320.c
index bfcb6d9..b375ed4 100644
--- a/sound/soc/imx/eukrea-tlv320.c
+++ b/sound/soc/imx/eukrea-tlv320.c
@@ -23,10 +23,10 @@
#include <sound/pcm.h>
#include <sound/soc.h>
#include <asm/mach-types.h>
-#include <mach/audmux.h>
#include "../codecs/tlv320aic23.h"
#include "imx-ssi.h"
+#include "imx-audmux.h"
#define CODEC_CLOCK 12000000
diff --git a/sound/soc/imx/imx-audmux.c b/sound/soc/imx/imx-audmux.c
new file mode 100644
index 0000000..7b16266
--- /dev/null
+++ b/sound/soc/imx/imx-audmux.c
@@ -0,0 +1,300 @@
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2012 Linaro Ltd.
+ * Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * Initial development of this code was funded by
+ * Phytec Messtechnik GmbH, http://www.phytec.de
+ *
+ * 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.
+ */
+
+#include <linux/clk.h>
+#include <linux/debugfs.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include "imx-audmux.h"
+
+#define DRIVER_NAME "imx-audmux"
+
+static struct clk *audmux_clk;
+static void __iomem *audmux_base;
+
+#define MXC_AUDMUX_V2_PTCR(x) ((x) * 8)
+#define MXC_AUDMUX_V2_PDCR(x) ((x) * 8 + 4)
+
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *audmux_debugfs_root;
+
+static int audmux_open_file(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+/* There is an annoying discontinuity in the SSI numbering with regard
+ * to the Linux number of the devices */
+static const char *audmux_port_string(int port)
+{
+ switch (port) {
+ case MX31_AUDMUX_PORT1_SSI0:
+ return "imx-ssi.0";
+ case MX31_AUDMUX_PORT2_SSI1:
+ return "imx-ssi.1";
+ case MX31_AUDMUX_PORT3_SSI_PINS_3:
+ return "SSI3";
+ case MX31_AUDMUX_PORT4_SSI_PINS_4:
+ return "SSI4";
+ case MX31_AUDMUX_PORT5_SSI_PINS_5:
+ return "SSI5";
+ case MX31_AUDMUX_PORT6_SSI_PINS_6:
+ return "SSI6";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+static ssize_t audmux_read_file(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ ssize_t ret;
+ char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ int port = (int)file->private_data;
+ u32 pdcr, ptcr;
+
+ if (!buf)
+ return -ENOMEM;
+
+ if (audmux_clk)
+ clk_enable(audmux_clk);
+
+ ptcr = readl(audmux_base + MXC_AUDMUX_V2_PTCR(port));
+ pdcr = readl(audmux_base + MXC_AUDMUX_V2_PDCR(port));
+
+ if (audmux_clk)
+ clk_disable(audmux_clk);
+
+ ret = snprintf(buf, PAGE_SIZE, "PDCR: %08x\nPTCR: %08x\n",
+ pdcr, ptcr);
+
+ if (ptcr & MXC_AUDMUX_V2_PTCR_TFSDIR)
+ ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ "TxFS output from %s, ",
+ audmux_port_string((ptcr >> 27) & 0x7));
+ else
+ ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ "TxFS input, ");
+
+ if (ptcr & MXC_AUDMUX_V2_PTCR_TCLKDIR)
+ ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ "TxClk output from %s",
+ audmux_port_string((ptcr >> 22) & 0x7));
+ else
+ ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ "TxClk input");
+
+ ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n");
+
+ if (ptcr & MXC_AUDMUX_V2_PTCR_SYN) {
+ ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ "Port is symmetric");
+ } else {
+ if (ptcr & MXC_AUDMUX_V2_PTCR_RFSDIR)
+ ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ "RxFS output from %s, ",
+ audmux_port_string((ptcr >> 17) & 0x7));
+ else
+ ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ "RxFS input, ");
+
+ if (ptcr & MXC_AUDMUX_V2_PTCR_RCLKDIR)
+ ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ "RxClk output from %s",
+ audmux_port_string((ptcr >> 12) & 0x7));
+ else
+ ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ "RxClk input");
+ }
+
+ ret += snprintf(buf + ret, PAGE_SIZE - ret,
+ "\nData received from %s\n",
+ audmux_port_string((pdcr >> 13) & 0x7));
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
+
+ kfree(buf);
+
+ return ret;
+}
+
+static const struct file_operations audmux_debugfs_fops = {
+ .open = audmux_open_file,
+ .read = audmux_read_file,
+ .llseek = default_llseek,
+};
+
+static void __init audmux_debugfs_init(void)
+{
+ int i;
+ char buf[20];
+
+ audmux_debugfs_root = debugfs_create_dir("audmux", NULL);
+ if (!audmux_debugfs_root) {
+ pr_warning("Failed to create AUDMUX debugfs root\n");
+ return;
+ }
+
+ for (i = 1; i < 8; i++) {
+ snprintf(buf, sizeof(buf), "ssi%d", i);
+ if (!debugfs_create_file(buf, 0444, audmux_debugfs_root,
+ (void *)i, &audmux_debugfs_fops))
+ pr_warning("Failed to create AUDMUX port %d debugfs file\n",
+ i);
+ }
+}
+
+static void __exit audmux_debugfs_remove(void)
+{
+ debugfs_remove_recursive(audmux_debugfs_root);
+}
+#else
+static inline void audmux_debugfs_init(void)
+{
+}
+
+static inline void audmux_debugfs_remove(void)
+{
+}
+#endif
+
+enum imx_audmux_type {
+ IMX21_AUDMUX,
+ IMX31_AUDMUX,
+} audmux_type;
+
+static struct platform_device_id imx_audmux_ids[] = {
+ {
+ .name = "imx21-audmux",
+ .driver_data = IMX21_AUDMUX,
+ }, {
+ .name = "imx31-audmux",
+ .driver_data = IMX31_AUDMUX,
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(platform, imx_audmux_ids);
+
+static const uint8_t port_mapping[] = {
+ 0x0, 0x4, 0x8, 0x10, 0x14, 0x1c,
+};
+
+int mxc_audmux_v1_configure_port(unsigned int port, unsigned int pcr)
+{
+ if (audmux_type != IMX21_AUDMUX)
+ return -EINVAL;
+
+ if (!audmux_base)
+ return -ENOSYS;
+
+ if (port >= ARRAY_SIZE(port_mapping))
+ return -EINVAL;
+
+ writel(pcr, audmux_base + port_mapping[port]);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mxc_audmux_v1_configure_port);
+
+int mxc_audmux_v2_configure_port(unsigned int port, unsigned int ptcr,
+ unsigned int pdcr)
+{
+ if (audmux_type != IMX31_AUDMUX)
+ return -EINVAL;
+
+ if (!audmux_base)
+ return -ENOSYS;
+
+ if (audmux_clk)
+ clk_enable(audmux_clk);
+
+ writel(ptcr, audmux_base + MXC_AUDMUX_V2_PTCR(port));
+ writel(pdcr, audmux_base + MXC_AUDMUX_V2_PDCR(port));
+
+ if (audmux_clk)
+ clk_disable(audmux_clk);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mxc_audmux_v2_configure_port);
+
+static int __init imx_audmux_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ audmux_base = devm_request_and_ioremap(&pdev->dev, res);
+ if (!audmux_base)
+ return -EADDRNOTAVAIL;
+
+ audmux_clk = clk_get(&pdev->dev, "audmux");
+ if (IS_ERR(audmux_clk)) {
+ dev_dbg(&pdev->dev, "cannot get clock: %ld\n",
+ PTR_ERR(audmux_clk));
+ audmux_clk = NULL;
+ }
+
+ audmux_type = pdev->id_entry->driver_data;
+ if (audmux_type == IMX31_AUDMUX)
+ audmux_debugfs_init();
+
+ return 0;
+}
+
+static int __exit imx_audmux_remove(struct platform_device *pdev)
+{
+ if (audmux_type == IMX31_AUDMUX)
+ audmux_debugfs_remove();
+ clk_put(audmux_clk);
+
+ return 0;
+}
+
+static struct platform_driver imx_audmux_driver = {
+ .probe = imx_audmux_probe,
+ .remove = __exit_p(imx_audmux_remove),
+ .id_table = imx_audmux_ids,
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ }
+};
+
+static int __init imx_audmux_init(void)
+{
+ return platform_driver_register(&imx_audmux_driver);
+}
+subsys_initcall(imx_audmux_init);
+
+static void __exit imx_audmux_exit(void)
+{
+ platform_driver_unregister(&imx_audmux_driver);
+}
+module_exit(imx_audmux_exit);
+
+MODULE_DESCRIPTION("Freescale i.MX AUDMUX driver");
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/sound/soc/imx/imx-audmux.h b/sound/soc/imx/imx-audmux.h
new file mode 100644
index 0000000..5136d948
--- /dev/null
+++ b/sound/soc/imx/imx-audmux.h
@@ -0,0 +1,60 @@
+#ifndef __IMX_AUDMUX_H
+#define __IMX_AUDMUX_H
+
+#define MX27_AUDMUX_HPCR1_SSI0 0
+#define MX27_AUDMUX_HPCR2_SSI1 1
+#define MX27_AUDMUX_HPCR3_SSI_PINS_4 2
+#define MX27_AUDMUX_PPCR1_SSI_PINS_1 3
+#define MX27_AUDMUX_PPCR2_SSI_PINS_2 4
+#define MX27_AUDMUX_PPCR3_SSI_PINS_3 5
+
+#define MX31_AUDMUX_PORT1_SSI0 0
+#define MX31_AUDMUX_PORT2_SSI1 1
+#define MX31_AUDMUX_PORT3_SSI_PINS_3 2
+#define MX31_AUDMUX_PORT4_SSI_PINS_4 3
+#define MX31_AUDMUX_PORT5_SSI_PINS_5 4
+#define MX31_AUDMUX_PORT6_SSI_PINS_6 5
+
+#define MX51_AUDMUX_PORT1_SSI0 0
+#define MX51_AUDMUX_PORT2_SSI1 1
+#define MX51_AUDMUX_PORT3 2
+#define MX51_AUDMUX_PORT4 3
+#define MX51_AUDMUX_PORT5 4
+#define MX51_AUDMUX_PORT6 5
+#define MX51_AUDMUX_PORT7 6
+
+/* Register definitions for the i.MX21/27 Digital Audio Multiplexer */
+#define MXC_AUDMUX_V1_PCR_INMMASK(x) ((x) & 0xff)
+#define MXC_AUDMUX_V1_PCR_INMEN (1 << 8)
+#define MXC_AUDMUX_V1_PCR_TXRXEN (1 << 10)
+#define MXC_AUDMUX_V1_PCR_SYN (1 << 12)
+#define MXC_AUDMUX_V1_PCR_RXDSEL(x) (((x) & 0x7) << 13)
+#define MXC_AUDMUX_V1_PCR_RFCSEL(x) (((x) & 0xf) << 20)
+#define MXC_AUDMUX_V1_PCR_RCLKDIR (1 << 24)
+#define MXC_AUDMUX_V1_PCR_RFSDIR (1 << 25)
+#define MXC_AUDMUX_V1_PCR_TFCSEL(x) (((x) & 0xf) << 26)
+#define MXC_AUDMUX_V1_PCR_TCLKDIR (1 << 30)
+#define MXC_AUDMUX_V1_PCR_TFSDIR (1 << 31)
+
+/* Register definitions for the i.MX25/31/35/51 Digital Audio Multiplexer */
+#define MXC_AUDMUX_V2_PTCR_TFSDIR (1 << 31)
+#define MXC_AUDMUX_V2_PTCR_TFSEL(x) (((x) & 0xf) << 27)
+#define MXC_AUDMUX_V2_PTCR_TCLKDIR (1 << 26)
+#define MXC_AUDMUX_V2_PTCR_TCSEL(x) (((x) & 0xf) << 22)
+#define MXC_AUDMUX_V2_PTCR_RFSDIR (1 << 21)
+#define MXC_AUDMUX_V2_PTCR_RFSEL(x) (((x) & 0xf) << 17)
+#define MXC_AUDMUX_V2_PTCR_RCLKDIR (1 << 16)
+#define MXC_AUDMUX_V2_PTCR_RCSEL(x) (((x) & 0xf) << 12)
+#define MXC_AUDMUX_V2_PTCR_SYN (1 << 11)
+
+#define MXC_AUDMUX_V2_PDCR_RXDSEL(x) (((x) & 0x7) << 13)
+#define MXC_AUDMUX_V2_PDCR_TXRXEN (1 << 12)
+#define MXC_AUDMUX_V2_PDCR_MODE(x) (((x) & 0x3) << 8)
+#define MXC_AUDMUX_V2_PDCR_INMMASK(x) ((x) & 0xff)
+
+int mxc_audmux_v1_configure_port(unsigned int port, unsigned int pcr);
+
+int mxc_audmux_v2_configure_port(unsigned int port, unsigned int ptcr,
+ unsigned int pdcr);
+
+#endif /* __IMX_AUDMUX_H */
diff --git a/sound/soc/imx/mx27vis-aic32x4.c b/sound/soc/imx/mx27vis-aic32x4.c
index 155899c..dbfad0f 100644
--- a/sound/soc/imx/mx27vis-aic32x4.c
+++ b/sound/soc/imx/mx27vis-aic32x4.c
@@ -32,11 +32,11 @@
#include <sound/soc-dapm.h>
#include <sound/tlv.h>
#include <asm/mach-types.h>
-#include <mach/audmux.h>
#include <mach/iomux-mx27.h>
#include "../codecs/tlv320aic32x4.h"
#include "imx-ssi.h"
+#include "imx-audmux.h"
#define MX27VIS_AMP_GAIN 0
#define MX27VIS_AMP_MUTE 1
diff --git a/sound/soc/imx/phycore-ac97.c b/sound/soc/imx/phycore-ac97.c
index a59692e..7dab077 100644
--- a/sound/soc/imx/phycore-ac97.c
+++ b/sound/soc/imx/phycore-ac97.c
@@ -18,7 +18,8 @@
#include <sound/pcm.h>
#include <sound/soc.h>
#include <asm/mach-types.h>
-#include <mach/audmux.h>
+
+#include "imx-audmux.h"
static struct snd_soc_card imx_phycore;
diff --git a/sound/soc/imx/wm1133-ev1.c b/sound/soc/imx/wm1133-ev1.c
index 37480c9..15056d6 100644
--- a/sound/soc/imx/wm1133-ev1.c
+++ b/sound/soc/imx/wm1133-ev1.c
@@ -21,10 +21,9 @@
#include <sound/pcm_params.h>
#include <sound/soc.h>
-#include <mach/audmux.h>
-
#include "imx-ssi.h"
#include "../codecs/wm8350.h"
+#include "imx-audmux.h"
/* There is a silicon mic on the board optionally connected via a solder pad
* SP1. Define this to enable it.