1 files changed, 82 insertions, 0 deletions
diff --git a/tests/qtest/libqos/i2c.h b/tests/qtest/libqos/i2c.h
new file mode 100644
index 0000000000..945b65b34c
--- /dev/null
+++ b/tests/qtest/libqos/i2c.h
@@ -0,0 +1,82 @@
+/*
+ * I2C libqos
+ *
+ * Copyright (c) 2012 Andreas Färber
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+#ifndef LIBQOS_I2C_H
+#define LIBQOS_I2C_H
+
+#include "libqtest.h"
+#include "libqos/qgraph.h"
+
+typedef struct I2CAdapter I2CAdapter;
+struct I2CAdapter {
+    void (*send)(I2CAdapter *adapter, uint8_t addr,
+                 const uint8_t *buf, uint16_t len);
+    void (*recv)(I2CAdapter *adapter, uint8_t addr,
+                 uint8_t *buf, uint16_t len);
+
+    QTestState *qts;
+};
+
+typedef struct QI2CAddress QI2CAddress;
+struct QI2CAddress {
+    uint8_t addr;
+};
+
+typedef struct QI2CDevice QI2CDevice;
+struct QI2CDevice {
+    /*
+     * For now, all devices are simple enough that there is no need for
+     * them to define their own constructor and get_driver functions.
+     * Therefore, QOSGraphObject is included directly in QI2CDevice;
+     * the tests expect to get a QI2CDevice rather than doing something
+     * like obj->get_driver("i2c-device").
+     *
+     * In fact there is no i2c-device interface even, because there are
+     * no generic I2C tests).
+     */
+    QOSGraphObject obj;
+    I2CAdapter *bus;
+    uint8_t addr;
+};
+
+void *i2c_device_create(void *i2c_bus, QGuestAllocator *alloc, void *addr);
+void add_qi2c_address(QOSGraphEdgeOptions *opts, QI2CAddress *addr);
+
+void i2c_send(QI2CDevice *dev, const uint8_t *buf, uint16_t len);
+void i2c_recv(QI2CDevice *dev, uint8_t *buf, uint16_t len);
+
+void i2c_read_block(QI2CDevice *dev, uint8_t reg,
+                    uint8_t *buf, uint16_t len);
+void i2c_write_block(QI2CDevice *dev, uint8_t reg,
+                     const uint8_t *buf, uint16_t len);
+uint8_t i2c_get8(QI2CDevice *dev, uint8_t reg);
+uint16_t i2c_get16(QI2CDevice *dev, uint8_t reg);
+void i2c_set8(QI2CDevice *dev, uint8_t reg, uint8_t value);
+void i2c_set16(QI2CDevice *dev, uint8_t reg, uint16_t value);
+
+/* i2c-omap.c */
+typedef struct OMAPI2C {
+    QOSGraphObject obj;
+    I2CAdapter parent;
+
+    uint64_t addr;
+} OMAPI2C;
+
+void omap_i2c_init(OMAPI2C *s, QTestState *qts, uint64_t addr);
+
+/* i2c-imx.c */
+typedef struct IMXI2C {
+    QOSGraphObject obj;
+    I2CAdapter parent;
+
+    uint64_t addr;
+} IMXI2C;
+
+void imx_i2c_init(IMXI2C *s, QTestState *qts, uint64_t addr);
+
+#endif