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