1 /* SPDX-License-Identifier: BSD-3-Clause */
2 /*
3 * Copyright (c) 2020, MIPI Alliance, Inc.
4 *
5 * Author: Nicolas Pitre <npitre@baylibre.com>
6 *
7 * Common IBI related stuff
8 */
9
10 #ifndef IBI_H
11 #define IBI_H
12
13 /*
14 * IBI Status Descriptor bits
15 */
16 #define IBI_STS BIT(31)
17 #define IBI_ERROR BIT(30)
18 #define IBI_STATUS_TYPE BIT(29)
19 #define IBI_HW_CONTEXT GENMASK(28, 26)
20 #define IBI_TS BIT(25)
21 #define IBI_LAST_STATUS BIT(24)
22 #define IBI_CHUNKS GENMASK(23, 16)
23 #define IBI_ID GENMASK(15, 8)
24 #define IBI_TARGET_ADDR GENMASK(15, 9)
25 #define IBI_TARGET_RNW BIT(8)
26 #define IBI_DATA_LENGTH GENMASK(7, 0)
27
28 /* handy helpers */
29 static inline struct i3c_dev_desc *
i3c_hci_addr_to_dev(struct i3c_hci * hci,unsigned int addr)30 i3c_hci_addr_to_dev(struct i3c_hci *hci, unsigned int addr)
31 {
32 struct i3c_bus *bus = i3c_master_get_bus(&hci->master);
33 struct i3c_dev_desc *dev;
34
35 i3c_bus_for_each_i3cdev(bus, dev) {
36 if (dev->info.dyn_addr == addr)
37 return dev;
38 }
39 return NULL;
40 }
41
42 #endif
43