1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (c) 2009 Samsung Electronics Co. Ltd
4 * Author: Jaswinder Singh <jassi.brar@samsung.com>
5 */
6
7 /* The machine init code calls s3c*_ac97_setup_gpio with
8 * one of these defines in order to select appropriate bank
9 * of GPIO for AC97 pins
10 */
11 #define S3C64XX_AC97_GPD 0
12 #define S3C64XX_AC97_GPE 1
13
14 #include <linux/dmaengine.h>
15
16 extern void s3c64xx_ac97_setup_gpio(int);
17
18 struct samsung_i2s_type {
19 /* If the Primary DAI has 5.1 Channels */
20 #define QUIRK_PRI_6CHAN (1 << 0)
21 /* If the I2S block has a Stereo Overlay Channel */
22 #define QUIRK_SEC_DAI (1 << 1)
23 /*
24 * If the I2S block has no internal prescalar or MUX (I2SMOD[10] bit)
25 * The Machine driver must provide suitably set clock to the I2S block.
26 */
27 #define QUIRK_NO_MUXPSR (1 << 2)
28 #define QUIRK_NEED_RSTCLR (1 << 3)
29 #define QUIRK_SUPPORTS_TDM (1 << 4)
30 #define QUIRK_SUPPORTS_IDMA (1 << 5)
31 /* Quirks of the I2S controller */
32 u32 quirks;
33 dma_addr_t idma_addr;
34 };
35
36 /**
37 * struct s3c_audio_pdata - common platform data for audio device drivers
38 * @cfg_gpio: Callback function to setup mux'ed pins in I2S/PCM/AC97 mode
39 */
40 struct s3c_audio_pdata {
41 int (*cfg_gpio)(struct platform_device *);
42 dma_filter_fn dma_filter;
43 void *dma_playback;
44 void *dma_capture;
45 void *dma_play_sec;
46 void *dma_capture_mic;
47 struct samsung_i2s_type type;
48 };