GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
21813 changed files with 4413081 additions and 0 deletions
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ * Copyright (C) 2018 Icenowy Zheng <icenowy@aosc.io>
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+/* This driver provides support for Mentor Graphics MI2CV IP core */
+
+#ifndef MI2CV_H
+#define MI2CV_H
+
+#include <stdint.h>
+
+/*
+ * Initialization, must be called once on start up, may be called
+ * repeatedly to change the speed and slave addresses.
+ */
+void i2c_init(void *i2c_base);
+
+/*
+ * Read/Write interface:
+ *   chip:    I2C chip address, range 0..127
+ *   addr:    Memory (register) address within the chip
+ *   alen:    Number of bytes to use for addr (typically 1, 2 for larger
+ *              memories, 0 for register type devices with only one
+ *              register)
+ *   buffer:  Where to read/write the data
+ *   len:     How many bytes to read/write
+ *
+ *   Returns: 0 on success, not 0 on failure
+ */
+int i2c_read(uint8_t chip,
+	     unsigned int addr, int alen, uint8_t *buffer, int len);
+
+int i2c_write(uint8_t chip,
+	      unsigned int addr, int alen, uint8_t *buffer, int len);
+
+#endif /* MI2CV_H */