| 1 | // SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) |
| 2 | // |
| 3 | // This file is provided under a dual BSD/GPLv2 license. When using or |
| 4 | // redistributing this file, you may do so under either license. |
| 5 | // |
| 6 | // Copyright(c) 2018 Intel Corporation. All rights reserved. |
| 7 | // |
| 8 | // Authors: Keyon Jie <yang.jie@linux.intel.com> |
| 9 | |
| 10 | #include <linux/io.h> |
| 11 | #include <sound/hdaudio.h> |
| 12 | #include "../sof-priv.h" |
| 13 | #include "hda.h" |
| 14 | |
| 15 | #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) |
| 16 | #define sof_hda_ext_ops snd_soc_hdac_hda_get_ops() |
| 17 | #else |
| 18 | #define sof_hda_ext_ops NULL |
| 19 | #endif |
| 20 | |
| 21 | /* |
| 22 | * This can be used for both with/without hda link support. |
| 23 | */ |
| 24 | void sof_hda_bus_init(struct hdac_bus *bus, struct device *dev) |
| 25 | { |
| 26 | #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) |
| 27 | snd_hdac_ext_bus_init(bus, dev, NULL, sof_hda_ext_ops); |
| 28 | #else /* CONFIG_SND_SOC_SOF_HDA */ |
| 29 | memset(bus, 0, sizeof(*bus)); |
| 30 | bus->dev = dev; |
| 31 | |
| 32 | INIT_LIST_HEAD(&bus->stream_list); |
| 33 | |
| 34 | bus->irq = -1; |
| 35 | |
| 36 | /* |
| 37 | * There is only one HDA bus atm. keep the index as 0. |
| 38 | * Need to fix when there are more than one HDA bus. |
| 39 | */ |
| 40 | bus->idx = 0; |
| 41 | |
| 42 | spin_lock_init(&bus->reg_lock); |
| 43 | #endif /* CONFIG_SND_SOC_SOF_HDA */ |
| 44 | } |