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Diffstat (limited to 'drivers/i3c/master/mipi-i3c-hci/ibi.h')
-rw-r--r--drivers/i3c/master/mipi-i3c-hci/ibi.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/i3c/master/mipi-i3c-hci/ibi.h b/drivers/i3c/master/mipi-i3c-hci/ibi.h
new file mode 100644
index 000000000..e1f98e264
--- /dev/null
+++ b/drivers/i3c/master/mipi-i3c-hci/ibi.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/*
+ * Copyright (c) 2020, MIPI Alliance, Inc.
+ *
+ * Author: Nicolas Pitre <npitre@baylibre.com>
+ *
+ * Common IBI related stuff
+ */
+
+#ifndef IBI_H
+#define IBI_H
+
+/*
+ * IBI Status Descriptor bits
+ */
+#define IBI_STS BIT(31)
+#define IBI_ERROR BIT(30)
+#define IBI_STATUS_TYPE BIT(29)
+#define IBI_HW_CONTEXT GENMASK(28, 26)
+#define IBI_TS BIT(25)
+#define IBI_LAST_STATUS BIT(24)
+#define IBI_CHUNKS GENMASK(23, 16)
+#define IBI_ID GENMASK(15, 8)
+#define IBI_TARGET_ADDR GENMASK(15, 9)
+#define IBI_TARGET_RNW BIT(8)
+#define IBI_DATA_LENGTH GENMASK(7, 0)
+
+/* handy helpers */
+static inline struct i3c_dev_desc *
+i3c_hci_addr_to_dev(struct i3c_hci *hci, unsigned int addr)
+{
+ struct i3c_bus *bus = i3c_master_get_bus(&hci->master);
+ struct i3c_dev_desc *dev;
+
+ i3c_bus_for_each_i3cdev(bus, dev) {
+ if (dev->info.dyn_addr == addr)
+ return dev;
+ }
+ return NULL;
+}
+
+#endif