include/linux/platform_data/asoc-s3c.h

   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 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 };