/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * atmel_ssc_dai.h - ALSA SSC interface for the Atmel SoC * * Copyright (C) 2005 SAN People * Copyright (C) 2008 Atmel * * Author: Sedji Gaouaou <[email protected]> * ATMEL CORP. * * Based on at91-ssc.c by * Frank Mandarino <[email protected]> * Based on pxa2xx Platform drivers by * Liam Girdwood <[email protected]> */ #ifndef _ATMEL_SSC_DAI_H #define _ATMEL_SSC_DAI_H #include <linux/types.h> #include <linux/atmel-ssc.h> #include "atmel-pcm.h" /* SSC system clock ids */ #define ATMEL_SYSCLK_MCK … /* SSC divider ids */ #define ATMEL_SSC_CMR_DIV … #define ATMEL_SSC_TCMR_PERIOD … #define ATMEL_SSC_RCMR_PERIOD … /* * SSC direction masks */ #define SSC_DIR_MASK_UNUSED … #define SSC_DIR_MASK_PLAYBACK … #define SSC_DIR_MASK_CAPTURE … /* * SSC register values that Atmel left out of <linux/atmel-ssc.h>. These * are expected to be used with SSC_BF */ /* START bit field values */ #define SSC_START_CONTINUOUS … #define SSC_START_TX_RX … #define SSC_START_LOW_RF … #define SSC_START_HIGH_RF … #define SSC_START_FALLING_RF … #define SSC_START_RISING_RF … #define SSC_START_LEVEL_RF … #define SSC_START_EDGE_RF … #define SSS_START_COMPARE_0 … /* CKI bit field values */ #define SSC_CKI_FALLING … #define SSC_CKI_RISING … /* CKO bit field values */ #define SSC_CKO_NONE … #define SSC_CKO_CONTINUOUS … #define SSC_CKO_TRANSFER … /* CKS bit field values */ #define SSC_CKS_DIV … #define SSC_CKS_CLOCK … #define SSC_CKS_PIN … /* FSEDGE bit field values */ #define SSC_FSEDGE_POSITIVE … #define SSC_FSEDGE_NEGATIVE … /* FSOS bit field values */ #define SSC_FSOS_NONE … #define SSC_FSOS_NEGATIVE … #define SSC_FSOS_POSITIVE … #define SSC_FSOS_LOW … #define SSC_FSOS_HIGH … #define SSC_FSOS_TOGGLE … #define START_DELAY … struct atmel_ssc_state { … }; struct atmel_ssc_info { … }; int atmel_ssc_set_audio(int ssc_id); void atmel_ssc_put_audio(int ssc_id); #endif /* _AT91_SSC_DAI_H */
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