1 /* 2 * Copyright (c) 2009 Samsung Electronics Co. Ltd 3 * Author: Jaswinder Singh <jassi.brar@samsung.com> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 */ 9 10 /* The machine init code calls s3c*_ac97_setup_gpio with 11 * one of these defines in order to select appropriate bank 12 * of GPIO for AC97 pins 13 */ 14 #define S3C64XX_AC97_GPD 0 15 #define S3C64XX_AC97_GPE 1 16 17 #include <linux/dmaengine.h> 18 19 extern void s3c64xx_ac97_setup_gpio(int); 20 21 struct samsung_i2s { 22 /* If the Primary DAI has 5.1 Channels */ 23 #define QUIRK_PRI_6CHAN (1 << 0) 24 /* If the I2S block has a Stereo Overlay Channel */ 25 #define QUIRK_SEC_DAI (1 << 1) 26 /* 27 * If the I2S block has no internal prescalar or MUX (I2SMOD[10] bit) 28 * The Machine driver must provide suitably set clock to the I2S block. 29 */ 30 #define QUIRK_NO_MUXPSR (1 << 2) 31 #define QUIRK_NEED_RSTCLR (1 << 3) 32 #define QUIRK_SUPPORTS_TDM (1 << 4) 33 #define QUIRK_SUPPORTS_IDMA (1 << 5) 34 /* Quirks of the I2S controller */ 35 u32 quirks; 36 dma_addr_t idma_addr; 37 }; 38 39 /** 40 * struct s3c_audio_pdata - common platform data for audio device drivers 41 * @cfg_gpio: Callback function to setup mux'ed pins in I2S/PCM/AC97 mode 42 */ 43 struct s3c_audio_pdata { 44 int (*cfg_gpio)(struct platform_device *); 45 dma_filter_fn dma_filter; 46 void *dma_playback; 47 void *dma_capture; 48 void *dma_play_sec; 49 void *dma_capture_mic; 50 union { 51 struct samsung_i2s i2s; 52 } type; 53 }; 54