audio: audio info for audio license query

PD#147297: audio: audio license query driver

Change-Id: I9a9db1c33c372bc58130a1c41addfd80303a5625
Signed-off-by: Xing Wang <xing.wang@amlogic.com>
Signed-off-by: Matthew Shyu <matthew.shyu@amlogic.com>

MAINTAINERS

@@ -13536,6 +13536,7 @@ F: drivers/amlogic/pwm/*
 F: include/linux/amlogic/pwm_meson.h
 F: include/dt-bindings/pwm/meosn.h
 F: arch/arm64/boot/dts/amlogic/gxl_p212_2g.dts
+F: arch/arm64/boot/dts/amlogic/gxl_p230_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxm_q200_2g.dts
 
 AMLOGIC multimedia
@@ -13583,6 +13584,7 @@ F:  drivers/amlogic/media/Kconfig
 F:  drivers/amlogic/media/Makefile
 F:  arch/arm64/boot/dts/amlogic/gxl_p212_1g.dts
 F:  arch/arm64/boot/dts/amlogic/gxl_p212_2g.dts
+F:  arch/arm64/boot/dts/amlogic/gxl_p230_2g.dts
 F:  arch/arm64/boot/dts/amlogic/gxm_q200_2g.dts
 F:  drivers/amlogic/clk/clk_media.c
 F:  include/linux/amlogic/media/vout/vout_notify.h
@@ -13637,6 +13639,7 @@ AMLOGIC TVIN
 M: Dezhi Kong <dezhi.kong@amlogic.com>
 F: arch/arm64/boot/dts/amlogic/gxl_p212_1g.dts
 F: arch/arm64/boot/dts/amlogic/gxl_p212_2g.dts
+F: arch/arm64/boot/dts/amlogic/gxl_p230_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxm_q200_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxm_skt.dts
 F: arch/arm64/configs/meson64_defconfig
@@ -13666,6 +13669,7 @@ AMLOGIC key_manage
 M: Nan Li <nan.li@amlogic.com>
 F: arch/arm64/boot/dts/amlogic/gxl_p212_1g.dts
 F: arch/arm64/boot/dts/amlogic/gxl_p212_2g.dts
+F: arch/arm64/boot/dts/amlogic/gxl_p230_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxm_q200_2g.dts
 F: arch/arm64/configs/meson64_defconfig
 F: drivers/amlogic/Kconfig
@@ -13707,6 +13711,7 @@ ANLOGIC AUDIO
 M: Xing Wang <xing.wang@amlogic.com>
 F: arch/arm64/boot/dts/amlogic/gxl_p212_1g.dts
 F: arch/arm64/boot/dts/amlogic/gxl_p212_2g.dts
+F: arch/arm64/boot/dts/amlogic/gxl_p230_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxm_q200_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxm_skt.dts
 F: arch/arm64/boot/dts/amlogic/mesongxl.dtsi
@@ -13732,6 +13737,7 @@ AMLOGIC PPMGR DRIVER
 M: Guosong Zhou <guosong.zhou@amlogic.com>
 F: arch/arm64/boot/dts/amlogic/gxl_p212_1g.dts
 F: arch/arm64/boot/dts/amlogic/gxl_p212_2g.dts
+F: arch/arm64/boot/dts/amlogic/gxl_p230_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxm_q200_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxl_p400_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxm_p401_2g.dts
@@ -13788,6 +13794,7 @@ AMLOGIC IONVIDEO DRIVER
 M: Guosong Zhou <guosong.zhou@amlogic.com>
 F: arch/arm64/boot/dts/amlogic/gxl_p212_1g.dts
 F: arch/arm64/boot/dts/amlogic/gxl_p212_2g.dts
+F: arch/arm64/boot/dts/amlogic/gxl_p230_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxm_q200_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxl_p400_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxm_p401_2g.dts
@@ -13860,6 +13867,7 @@ F: arch/arm/boot/dts/amlogic/meson8b_m200.dts
 F: arch/arm/configs/meson32_defconfig
 F: arch/arm64/boot/dts/amlogic/gxl_p212_1g.dts
 F: arch/arm64/boot/dts/amlogic/gxl_p212_2g.dts
+F: arch/arm64/boot/dts/amlogic/gxl_p230_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxl_p400_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxl_p401_2g.dts
 F: arch/arm64/boot/dts/amlogic/gxm_q200_2g.dts
@@ -13981,3 +13989,7 @@ M:	jiaxing.ye <jiaxing.ye@amlogic.com>
 F:	driver/amlogic/ddr_window/Makefile
 F:	driver/amlogic/ddr_window/ddr_window.c
 F:	driver/amlogic/ddr_window/Kconfig
+
+AMLOGIC AUDIO INFO
+M:	wang xing <xing.wang@amlogic.com>
+F: drivers/amlogic/audioinfo/

arch/arm64/boot/dts/amlogic/gxl_p212_1g.dts

@@ -1180,7 +1180,9 @@
 &efuse {
 	status = "ok";
 };
-
+&audio_data{
+	status = "okay";
+};
 &spicc{
 	status = "disabled";
 	pinctrl-names = "spicc_pulldown","spicc_pullup";

arch/arm64/boot/dts/amlogic/gxl_p212_2g.dts

@@ -1180,3 +1180,6 @@
 &efuse {
 	status = "ok";
 };
+&audio_data{
+	status = "okay";
+};

arch/arm64/boot/dts/amlogic/gxm_q200_2g.dts

@@ -1197,7 +1197,9 @@
 &efuse {
 	status = "ok";
 };
-
+&audio_data{
+	status = "okay";
+};
 &i2c_b {
 	status = "okay";
 };

arch/arm64/boot/dts/amlogic/mesongxl.dtsi

@@ -1010,6 +1010,12 @@ i2c_ao: i2c@c8100500{ /*I2C-AO*/
 		reg = <0x0 0xc883e000 0x0 0x28>;
 	};
 
+	audio_data:audio_data {
+	   compatible = "amlogic, audio_data";
+	   query_licence_cmd = <0x82000050>;
+	   status = "disabled";
+	};
+
 	saradc: saradc {
 		compatible = "amlogic,meson-gxl-saradc";
 		status = "okay";

arch/arm64/boot/dts/amlogic/mesongxm.dtsi

@@ -1138,6 +1138,12 @@
 		reg = <0x0 0xc883e000 0x0 0x28>;
 	};
 
+	audio_data:audio_data {
+	   compatible = "amlogic, audio_data";
+	   query_licence_cmd = <0x82000050>;
+	   status = "disabled";
+	};
+
 	saradc: saradc {
 		compatible = "amlogic,meson-gxl-saradc";
 		status = "okay";

arch/arm64/configs/meson64_defconfig

@@ -258,6 +258,7 @@ CONFIG_AMLOGIC_CPUCORE_THERMAL=y
 CONFIG_AMLOGIC_GPU_THERMAL=y
 CONFIG_AMLOGIC_GPUCORE_THERMAL=y
 CONFIG_AMLOGIC_AUDIO_DSP=y
+CONFIG_AMLOGIC_AUDIO_INFO=y
 CONFIG_AMLOGIC_SUSPEND=y
 CONFIG_AMLOGIC_GX_SUSPEND=y
 CONFIG_AMLOGIC_LEGACY_EARLY_SUSPEND=y

drivers/amlogic/Kconfig

@@ -82,6 +82,8 @@ source "drivers/amlogic/thermal/Kconfig"
 
 source "drivers/amlogic/audiodsp/Kconfig"
 
+source "drivers/amlogic/audioinfo/Kconfig"
+
 source "drivers/amlogic/pm/Kconfig"
 
 source "drivers/amlogic/led/Kconfig"

drivers/amlogic/Makefile

@@ -68,6 +68,8 @@ obj-$(CONFIG_AMLOGIC_TEMP_SENSOR)	+= thermal/
 
 obj-$(CONFIG_AMLOGIC_AUDIO_DSP)	+= audiodsp/
 
+obj-$(CONFIG_AMLOGIC_AUDIO_INFO) += audioinfo/
+
 obj-$(CONFIG_AMLOGIC_SUSPEND)	+= pm/
 
 obj-$(CONFIG_AMLOGIC_LED)		+= led/

drivers/amlogic/audioinfo/Kconfig

@@ -0,0 +1,11 @@
+# audio info  configuration
+#
+menu "AMLOGIC Audio Info"
+
+config AMLOGIC_AUDIO_INFO
+	tristate "audio info"
+	default n
+	help
+		support the amlogic audio info;
+
+endmenu

drivers/amlogic/audioinfo/Makefile

@@ -0,0 +1 @@
+obj-$(CONFIG_AMLOGIC_AUDIO_INFO) += audio_data.o

drivers/amlogic/audioinfo/audio_data.c

@@ -0,0 +1,295 @@
+/*
+ * drivers/amlogic/audioinfo/audio_data.c
+ *
+ * Copyright (C) 2017 Amlogic, Inc. All rights reserved.
+ *
+ * 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/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/proc_fs.h>
+#include <linux/device.h>
+#include <linux/uaccess.h>
+#include "../efuse/efuse.h"
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include "audio_data.h"
+
+#ifdef CONFIG_MESON_TRUSTZONE
+#include <mach/meson-secure.h>
+#endif
+#include <linux/amlogic/secmon.h>
+/*#define MYPRT pr_info*/
+#define MYPRT(...)
+/* major device number and minor device number */
+static int major_audio_data;
+/* device class and device var */
+static struct class *class_audio_data;
+static struct device  *dev_audio_data;
+void __iomem *sharemem_input;/*used as input and output memory, may not ok*/
+unsigned int efuse_query_licence_cmd;
+
+static int audio_data_open(struct inode *inode, struct file *filp);
+static int audio_data_release(struct inode *inode, struct file *filp);
+static ssize_t audio_data_read(struct file *filp, char __user *buf,
+						size_t count, loff_t *f_pos);
+static ssize_t audio_data_write(struct file *filp, const char __user *buf,
+						size_t count, loff_t *f_pos);
+
+/* device operation methods chart */
+static struct file_operations const audio_data_fops = {
+	.owner = THIS_MODULE,
+	.open = audio_data_open,
+	.release = audio_data_release,
+	.read = audio_data_read,
+	.write = audio_data_write,
+	/* .unlocked_ioctl = audio_data_ioctl, */
+};
+
+
+int meson_efuse_fn_smc_query_audioinfo(struct efuse_hal_api_arg *arg)
+{
+	int ret;
+	unsigned int cmd, offset, size;
+	unsigned long *retcnt;
+
+	register unsigned x0 asm("x0");
+	register unsigned x1 asm("x1");
+	register unsigned x2 asm("x2");
+	register unsigned x3 asm("x3");
+
+	if (!arg)
+		return -1;
+	if (!sharemem_input)
+		return -1;
+
+	retcnt = (unsigned long *)(arg->retcnt);
+	cmd = arg->cmd;
+	offset = arg->offset;
+	size = arg->size;
+
+	/*write data*/
+	memcpy((void *)sharemem_input, (const void *)arg->buffer, size);
+
+	asm __volatile__("" : : : "memory");
+	x0 = cmd;
+	x1 = offset;
+	x2 = size;
+	x3 = 0;
+
+	do {
+		asm volatile(
+		__asmeq("%0", "x0")
+		__asmeq("%1", "x0")
+		__asmeq("%2", "x1")
+		__asmeq("%3", "x2")
+		__asmeq("%4", "x3")
+		"smc #0\n"
+		: "=r"(x0)
+		: "r"(x0), "r"(x1), "r"(x2), "r"(x3));
+	} while (0);
+	ret = x0;
+	*retcnt = x0;
+	MYPRT("[%s %d]ret/%d\n", __func__, __LINE__, ret);
+
+	if (ret == 0) {
+		memset((void *)arg->buffer, 0, arg->size);
+		memcpy((void *)arg->buffer,
+				(const void *)sharemem_input, arg->size);
+	}
+	return ret;
+}
+
+int meson_trustzone_audio_info_get(struct efuse_hal_api_arg *arg)
+{
+	int ret;
+
+	if (!arg)
+		return -1;
+	set_cpus_allowed_ptr(current, cpumask_of(0));
+	ret = meson_efuse_fn_smc_query_audioinfo(arg);
+	set_cpus_allowed_ptr(current, cpu_all_mask);
+	return ret;
+}
+
+unsigned long audio_info_get(char *buf, unsigned long count,
+							unsigned long pos)
+{
+	struct efuse_hal_api_arg arg;
+	unsigned int retcnt;
+	int ret;
+
+	arg.cmd =  efuse_query_licence_cmd;
+	arg.offset = pos;
+	arg.size = count;
+	arg.buffer = (unsigned long)buf;
+	arg.retcnt = (unsigned long)&retcnt;
+
+	sharemem_input = get_secmon_sharemem_input_base();
+	ret = meson_trustzone_audio_info_get(&arg);
+
+	if (ret == 0)
+		MYPRT("[%s %d]: get licence!!!\n", __func__, __LINE__);
+	else
+		MYPRT("[%s:%d]: read error!!!\n", __func__, __LINE__);
+	return ret;
+}
+
+
+#define EFUSE_BUF_SIZE 1024
+/* open device methods */
+static int audio_data_open(struct inode *inode, struct file *filp)
+{
+	MYPRT("[%s]\n", __func__);
+	return 0;
+}
+
+/* device file release */
+static int audio_data_release(struct inode *inode, struct file *filp)
+{
+	MYPRT("[%s]\n", __func__);
+	return 0;
+}
+
+
+/* read device reg val */
+static ssize_t audio_data_read(struct file *filp, char __user *buf,
+						size_t count, loff_t *f_pos)
+{
+	int err = 0;
+	loff_t pos = 0;
+	char buftmp[EFUSE_BUF_SIZE] = {0};
+
+	MYPRT("[%s]\n", __func__);
+	if (count > EFUSE_BUF_SIZE) {
+		MYPRT("[%s %d]buffer is too small\n", __func__, __LINE__);
+		err =  -1;
+	} else{
+		err = copy_from_user(buftmp, buf, count);
+		if (!err) {
+			err = audio_info_get(buftmp, count, pos);
+			if (!err) {
+				MYPRT("[%s %d]copy data to user (count/%d)\n",
+					__func__, __LINE__, (int)count);
+				err = copy_to_user(buf, buftmp, count);
+			} else{
+				err =  -1;
+			}
+		}
+	}
+	if (!err)
+		return count;
+	else
+		return -1;
+}
+
+/* write device reg val */
+static ssize_t audio_data_write(struct file *filp, const char __user *buf,
+						size_t count, loff_t *f_pos)
+{
+	return 0;
+}
+
+static int audio_data_probe(struct platform_device *pdev)
+{
+	void *ptr_err;
+
+	major_audio_data = register_chrdev(0,
+						AUDIO_DATA_DEVICE_NODE_NAME,
+						&audio_data_fops);
+	if (major_audio_data < 0) {
+		MYPRT("Registering audio_data char device %s failed with %d\n",
+				AUDIO_DATA_DEVICE_NODE_NAME, major_audio_data);
+		return major_audio_data;
+	}
+	class_audio_data = class_create(THIS_MODULE,
+						AUDIO_DATA_DEVICE_NODE_NAME);
+	ptr_err = class_audio_data;
+	if (IS_ERR(ptr_err))
+		goto err0;
+
+	dev_audio_data = device_create(class_audio_data, NULL,
+					MKDEV(major_audio_data, 0),
+					NULL, AUDIO_DATA_DEVICE_NODE_NAME);
+	ptr_err = dev_audio_data;
+	if (IS_ERR(ptr_err))
+		goto err1;
+	if (pdev->dev.of_node) {
+		int ret;
+		struct device_node *np = pdev->dev.of_node;
+
+		of_node_get(np);
+		ret = of_property_read_u32(np, "query_licence_cmd",
+				&efuse_query_licence_cmd);
+		if (ret) {
+			MYPRT("%s:please config query_cmd item\n", __func__);
+			return -1;
+		}
+	}
+	return 0;
+err1:
+	class_destroy(class_audio_data);
+err0:
+	unregister_chrdev(major_audio_data, AUDIO_DATA_DEVICE_NODE_NAME);
+	return PTR_ERR(ptr_err);
+
+}
+
+static int audio_data_remove(struct platform_device *pdev)
+{
+	unregister_chrdev_region(major_audio_data, 1);
+	device_destroy(class_audio_data, MKDEV(major_audio_data, 0));
+	class_destroy(class_audio_data);
+	return 0;
+}
+static const struct of_device_id amlogic_audio_data_dt_match[] = {
+	{	.compatible = "amlogic, audio_data",
+	},
+	{},
+};
+static struct platform_driver audio_data_driver = {
+	.probe = audio_data_probe,
+	.remove = audio_data_remove,
+	.driver = {
+		.name = AUDIO_DATA_DEVICE_NODE_NAME,
+		.of_match_table = amlogic_audio_data_dt_match,
+	.owner = THIS_MODULE,
+	},
+};
+static int __init audio_data_init(void)
+{
+	int ret = -1;
+
+	ret = platform_driver_register(&audio_data_driver);
+	if (ret != 0) {
+		MYPRT("failed to register audio data driver, error %d\n", ret);
+		return -ENODEV;
+	}
+	return ret;
+}
+/* module unload */
+static  void __exit audio_data_exit(void)
+{
+	platform_driver_unregister(&audio_data_driver);
+}
+
+MODULE_LICENSE("GPL");
+/* MODULE_LICENSE("Proprietary"); */
+MODULE_DESCRIPTION("Amlogic audio debug Interface driver");
+
+module_init(audio_data_init);
+module_exit(audio_data_exit);

drivers/amlogic/audioinfo/audio_data.h

@@ -0,0 +1,36 @@
+/*
+ * drivers/amlogic/audioinfo/audio_data.h
+ *
+ * Copyright (C) 2017 Amlogic, Inc. All rights reserved.
+ *
+ * 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.
+ *
+ */
+
+#ifndef _AUDIO_DATA_ANDROID_H_
+#define _AUDIO_DATA_ANDROID_H_
+
+#include <linux/cdev.h>
+#include <linux/semaphore.h>
+
+#define AUDIO_DATA_DEVICE_NODE_NAME "audio_data_debug"
+#define AUDIO_DATA_DEVICE_FILE_NAME "audio_data_debug"
+#define AUDIO_DATA_DEVICE_PROC_NAME "audio_data_debug"
+#define AUDIO_DATA_DEVICE_CLASS_NAME "audio_data_debug"
+
+#define EFUSE_DOLBY_AUDIO_EFFECT 1
+
+struct audio_data_android_dev {
+	unsigned int val;
+	struct semaphore sem;
+	struct cdev dev;
+};
+#endif