Linux Audio
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Embedded Linux Audio
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/* SPDX-License-Identifier: GPL-2.0-only */ /* * tegra20_ac97.h - Definitions for the Tegra20 AC97 controller driver * * Copyright (c) 2012 Lucas Stach <dev@lynxeye.de> * * Partly based on code copyright/by: * * Copyright (c) 2011,2012 Toradex Inc. */ #ifndef __TEGRA20_AC97_H__ #define __TEGRA20_AC97_H__ #include "tegra_pcm.h" #define TEGRA20_AC97_CTRL 0x00 #define TEGRA20_AC97_CMD 0x04 #define TEGRA20_AC97_STATUS1 0x08 /* ... */ #define TEGRA20_AC97_FIFO1_SCR 0x1c /* ... */ #define TEGRA20_AC97_FIFO_TX1 0x40 #define TEGRA20_AC97_FIFO_RX1 0x80 /* TEGRA20_AC97_CTRL */ #define TEGRA20_AC97_CTRL_STM2_EN (1 << 16) #define TEGRA20_AC97_CTRL_DOUBLE_SAMPLING_EN (1 << 11) #define TEGRA20_AC97_CTRL_IO_CNTRL_EN (1 << 10) #define TEGRA20_AC97_CTRL_HSET_DAC_EN (1 << 9) #define TEGRA20_AC97_CTRL_LINE2_DAC_EN (1 << 8) #define TEGRA20_AC97_CTRL_PCM_LFE_EN (1 << 7) #define TEGRA20_AC97_CTRL_PCM_SUR_EN (1 << 6) #define TEGRA20_AC97_CTRL_PCM_CEN_DAC_EN (1 << 5) #define TEGRA20_AC97_CTRL_LINE1_DAC_EN (1 << 4) #define TEGRA20_AC97_CTRL_PCM_DAC_EN (1 << 3) #define TEGRA20_AC97_CTRL_COLD_RESET (1 << 2) #define TEGRA20_AC97_CTRL_WARM_RESET (1 << 1) #define TEGRA20_AC97_CTRL_STM_EN (1 << 0) /* TEGRA20_AC97_CMD */ #define TEGRA20_AC97_CMD_CMD_ADDR_SHIFT 24 #define TEGRA20_AC97_CMD_CMD_ADDR_MASK (0xff << TEGRA20_AC97_CMD_CMD_ADDR_SHIFT) #define TEGRA20_AC97_CMD_CMD_DATA_SHIFT 8 #define TEGRA20_AC97_CMD_CMD_DATA_MASK (0xffff << TEGRA20_AC97_CMD_CMD_DATA_SHIFT) #define TEGRA20_AC97_CMD_CMD_ID_SHIFT 2 #define TEGRA20_AC97_CMD_CMD_ID_MASK (0x3 << TEGRA20_AC97_CMD_CMD_ID_SHIFT) #define TEGRA20_AC97_CMD_BUSY (1 << 0) /* TEGRA20_AC97_STATUS1 */ #define TEGRA20_AC97_STATUS1_STA_ADDR1_SHIFT 24 #define TEGRA20_AC97_STATUS1_STA_ADDR1_MASK (0xff << TEGRA20_AC97_STATUS1_STA_ADDR1_SHIFT) #define TEGRA20_AC97_STATUS1_STA_DATA1_SHIFT 8 #define TEGRA20_AC97_STATUS1_STA_DATA1_MASK (0xffff << TEGRA20_AC97_STATUS1_STA_DATA1_SHIFT) #define TEGRA20_AC97_STATUS1_STA_VALID1 (1 << 2) #define TEGRA20_AC97_STATUS1_STANDBY1 (1 << 1) #define TEGRA20_AC97_STATUS1_CODEC1_RDY (1 << 0) /* TEGRA20_AC97_FIFO1_SCR */ #define TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_SHIFT 27 #define TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_MASK (0x1f << TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_SHIFT) #define TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_SHIFT 22 #define TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_MASK (0x1f << TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_SHIFT) #define TEGRA20_AC97_FIFO_SCR_REC_OVERRUN_INT_STA (1 << 19) #define TEGRA20_AC97_FIFO_SCR_PB_UNDERRUN_INT_STA (1 << 18) #define TEGRA20_AC97_FIFO_SCR_REC_FORCE_MT (1 << 17) #define TEGRA20_AC97_FIFO_SCR_PB_FORCE_MT (1 << 16) #define TEGRA20_AC97_FIFO_SCR_REC_FULL_EN (1 << 15) #define TEGRA20_AC97_FIFO_SCR_REC_3QRT_FULL_EN (1 << 14) #define TEGRA20_AC97_FIFO_SCR_REC_QRT_FULL_EN (1 << 13) #define TEGRA20_AC97_FIFO_SCR_REC_EMPTY_EN (1 << 12) #define TEGRA20_AC97_FIFO_SCR_PB_NOT_FULL_EN (1 << 11) #define TEGRA20_AC97_FIFO_SCR_PB_QRT_MT_EN (1 << 10) #define TEGRA20_AC97_FIFO_SCR_PB_3QRT_MT_EN (1 << 9) #define TEGRA20_AC97_FIFO_SCR_PB_EMPTY_MT_EN (1 << 8) struct tegra20_ac97 { struct clk *clk_ac97; struct snd_dmaengine_dai_dma_data capture_dma_data; struct snd_dmaengine_dai_dma_data playback_dma_data; struct reset_control *reset; struct regmap *regmap; int reset_gpio; int sync_gpio; }; #endif /* __TEGRA20_AC97_H__ */
