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 }; 49