1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (c) 2009 Samsung Electronics Co. Ltd 4 * Author: Jaswinder Singh <[email protected]> 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 struct samsung_i2s_type { 17 /* If the Primary DAI has 5.1 Channels */ 18 #define QUIRK_PRI_6CHAN (1 << 0) 19 /* If the I2S block has a Stereo Overlay Channel */ 20 #define QUIRK_SEC_DAI (1 << 1) 21 /* 22 * If the I2S block has no internal prescalar or MUX (I2SMOD[10] bit) 23 * The Machine driver must provide suitably set clock to the I2S block. 24 */ 25 #define QUIRK_NO_MUXPSR (1 << 2) 26 #define QUIRK_NEED_RSTCLR (1 << 3) 27 #define QUIRK_SUPPORTS_TDM (1 << 4) 28 #define QUIRK_SUPPORTS_IDMA (1 << 5) 29 /* Quirks of the I2S controller */ 30 u32 quirks; 31 dma_addr_t idma_addr; 32 }; 33 34 /** 35 * struct s3c_audio_pdata - common platform data for audio device drivers 36 * @cfg_gpio: Callback function to setup mux'ed pins in I2S/PCM/AC97 mode 37 */ 38 struct s3c_audio_pdata { 39 int (*cfg_gpio)(struct platform_device *); 40 dma_filter_fn dma_filter; 41 void *dma_playback; 42 void *dma_capture; 43 void *dma_play_sec; 44 void *dma_capture_mic; 45 struct samsung_i2s_type type; 46 }; 47