Initial file dump from open source releaseHEADmaster

1 files changed, 115 insertions, 0 deletions

diff --git a/drivers/media/sprd_dcam/common/flash_test.c b/drivers/media/sprd_dcam/common/flash_test.c
new file mode 100644
index 00000000..dc8be3ef
--- /dev/null
+++ b/drivers/media/sprd_dcam/common/flash_test.c
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2014 Spreadtrum Communications Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ */
+/* notes : note location /sys/class/flash_test/flash_test/
+ *            echo 0x11>flash_value
+ * 		  cat flash_value
+ */
+#include "flash_test.h"
+#include "parse_hwinfo.h"
+#include <../flash/flash.h>
+
+#define SENSOR_K_SUCCESS                  0
+#define SENSOR_K_FAIL                     (-1)
+#define SENSOR_K_FALSE                    0
+#define SENSOR_K_TRUE                     1
+
+
+static struct class* flash_test_class = NULL;
+static int g_flash_mode=0;
+
+int setflash(uint32_t flash_mode)
+{
+	switch (flash_mode) {
+	case FLASH_OPEN:        /*flash on */
+	case FLASH_TORCH:        /*for torch low light */
+		sprd_flash_on();
+		break;
+	case FLASH_HIGH_LIGHT: /*high light */
+		sprd_flash_on();
+		break;
+	case FLASH_CLOSE_AFTER_OPEN:     /*close flash */
+	case FLASH_CLOSE_AFTER_AUTOFOCUS:
+	case FLASH_CLOSE:
+		sprd_flash_close();
+		break;
+	default:
+		printk("sprd_v4l2_setflash unknow mode:flash_mode 0x%x \n", flash_mode);
+		break;
+	}
+	return 0;
+}
+
+static ssize_t flash_test_show(struct device* dev,
+			   struct device_attribute* attr,  char* buf)
+{
+    return snprintf(buf, PAGE_SIZE, "flash_mode is :0x%x\n", g_flash_mode);
+}
+
+static ssize_t flash_test_store(struct device *dev,
+				struct device_attribute *attr, const char *buf,size_t c)
+{
+	int ret;
+	unsigned long flash_mode;
+	printk(KERN_ALERT"flash_test_store  buf=%s  line %d .\n",buf,__LINE__);
+	ret = kstrtoul(buf, 16, &flash_mode);
+	if (ret)
+		return ret;
+	g_flash_mode=flash_mode;
+	setflash(flash_mode);
+	return c;
+}
+static DEVICE_ATTR(flash_value, 0644, flash_test_show, flash_test_store);
+
+static int __init flash_test_init(void){
+	int err = -1;
+	dev_t dev_num = 0;
+	int flash_test_major = 0;
+	int flash_test_minor = 0;
+	struct device* flash_test_dev = NULL;
+	err = alloc_chrdev_region(&dev_num, 0, 1, FLASH_TEST_DEVICE_NODE_NAME);
+	if (err < 0) {
+	    printk(KERN_ALERT"Failed to alloc char dev region.\n");
+	    goto fail;
+	}
+	flash_test_major = MAJOR(dev_num);
+	flash_test_minor = MINOR(dev_num);
+	flash_test_class = class_create(THIS_MODULE, FLASH_TEST_DEVICE_CLASS_NAME);
+	if (IS_ERR(flash_test_class)) {
+	    err = PTR_ERR(flash_test_class);
+	    printk(KERN_ALERT"Failed to create flash_test class.\n");
+	    goto destroy_class;
+	}
+	flash_test_dev = device_create(flash_test_class, NULL, dev_num, "%s", FLASH_TEST_DEVICE_FILE_NAME);
+	if (IS_ERR(flash_test_dev)) {
+	    err = PTR_ERR(flash_test_dev);
+	    printk(KERN_ALERT"Failed to create flash_test device.");
+	    goto destroy_class;
+	}
+	err = device_create_file(flash_test_dev, &dev_attr_flash_value);
+	if (err < 0) {
+	    printk(KERN_ALERT"Failed to create attribute val.");
+	    goto destroy_device;
+	}
+	return 0;
+destroy_device:
+    device_destroy(flash_test_class, dev_num);
+destroy_class:
+    class_destroy(flash_test_class);
+    unregister_chrdev_region(MKDEV(flash_test_major, flash_test_minor), 1);
+fail:
+    return err;
+}
+module_init(flash_test_init);
+MODULE_AUTHOR("freed wang, spreadtrum");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Flash test Interface");