1 files changed, 65 insertions, 0 deletions
diff --git a/src/jtag/swim.h b/src/jtag/swim.h
new file mode 100644
index 0000000..d0ae18e
--- /dev/null
+++ b/src/jtag/swim.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+/*
+ * Copyright (C) 2020 by Antonio Borneo <borneo.antonio@gmail.com
+ */
+
+/**
+ * @file
+ * This file implements support for STMicroelectronics debug protocol SWIM
+ * (Single Wire Interface Module).
+ */
+
+#ifndef OPENOCD_JTAG_SWIM_H
+#define OPENOCD_JTAG_SWIM_H
+
+struct swim_driver {
+	/**
+	 * Send SRST (system reset) command to target.
+	 *
+	 * @return ERROR_OK on success, else a fault code.
+	 */
+	int (*srst)(void);
+
+	/**
+	 * Read target memory through ROTF (read on-the-fly) command.
+	 *
+	 * @param addr Start address to read data from target memory.
+	 * @param size Size in bytes of data units, 1, 2 or 4.
+	 * @param count Number of units (size units, not bytes) to read.
+	 * @param buffer Data buffer to receive data.
+	 * @return ERROR_OK on success, else a fault code.
+	 */
+	int (*read_mem)(uint32_t addr, uint32_t size, uint32_t count,
+					uint8_t *buffer);
+
+	/**
+	 * Write target memory through WOTF (write on-the-fly) command.
+	 *
+	 * @param addr Start address to write data to target memory.
+	 * @param size Size in bytes of data units, 1, 2 or 4.
+	 * @param count Number of units (size units, not bytes) to write.
+	 * @param buffer Data buffer to write.
+	 * @return ERROR_OK on success, else a fault code.
+	 */
+	int (*write_mem)(uint32_t addr, uint32_t size, uint32_t count,
+					 const uint8_t *buffer);
+
+	/**
+	 * Reconnect to the target.
+	 * Should be reworked to be more generic and not linked to current
+	 * implementation in stlink driver.
+	 *
+	 * @return ERROR_OK on success, else a fault code.
+	 */
+	int (*reconnect)(void);
+};
+
+int swim_system_reset(void);
+int swim_read_mem(uint32_t addr, uint32_t size, uint32_t count,
+				  uint8_t *buffer);
+int swim_write_mem(uint32_t addr, uint32_t size, uint32_t count,
+				   const uint8_t *buffer);
+int swim_reconnect(void);
+
+#endif /* OPENOCD_JTAG_SWIM_H */