first commit for chrg

2025-08-16 22:58:22 +08:00
commit 52a3ed5862
2306 changed files with 1021208 additions and 0 deletions
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+/*
+ * Copyright (c) 2006-2023, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author        Notes
+ * 2012-04-25     weety         first version
+ */
+
+#ifndef __DEV_I2C_BIT_OPS_H__
+#define __DEV_I2C_BIT_OPS_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct rt_i2c_bit_ops
+{
+    void *data;            /* private data for lowlevel routines */
+    void (*set_sda)(void *data, rt_int32_t state);
+    void (*set_scl)(void *data, rt_int32_t state);
+    rt_int32_t (*get_sda)(void *data);
+    rt_int32_t (*get_scl)(void *data);
+
+    void (*udelay)(rt_uint32_t us);
+
+    rt_uint32_t delay_us;  /* scl and sda line delay */
+    rt_uint32_t timeout;   /* in tick */
+
+    void (*pin_init)(void);
+    rt_bool_t i2c_pin_init_flag;
+};
+
+rt_err_t rt_i2c_bit_add_bus(struct rt_i2c_bus_device *bus,
+                            const char               *bus_name);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif