1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * tegra20_ac97.h - Definitions for the Tegra20 AC97 controller driver 4 * 5 * Copyright (c) 2012 Lucas Stach <dev@lynxeye.de> 6 * 7 * Partly based on code copyright/by: 8 * 9 * Copyright (c) 2011,2012 Toradex Inc. 10 */ 11 12 #ifndef __TEGRA20_AC97_H__ 13 #define __TEGRA20_AC97_H__ 14 15 #include "tegra_pcm.h" 16 17 #define TEGRA20_AC97_CTRL 0x00 18 #define TEGRA20_AC97_CMD 0x04 19 #define TEGRA20_AC97_STATUS1 0x08 20 /* ... */ 21 #define TEGRA20_AC97_FIFO1_SCR 0x1c 22 /* ... */ 23 #define TEGRA20_AC97_FIFO_TX1 0x40 24 #define TEGRA20_AC97_FIFO_RX1 0x80 25 26 /* TEGRA20_AC97_CTRL */ 27 #define TEGRA20_AC97_CTRL_STM2_EN (1 << 16) 28 #define TEGRA20_AC97_CTRL_DOUBLE_SAMPLING_EN (1 << 11) 29 #define TEGRA20_AC97_CTRL_IO_CNTRL_EN (1 << 10) 30 #define TEGRA20_AC97_CTRL_HSET_DAC_EN (1 << 9) 31 #define TEGRA20_AC97_CTRL_LINE2_DAC_EN (1 << 8) 32 #define TEGRA20_AC97_CTRL_PCM_LFE_EN (1 << 7) 33 #define TEGRA20_AC97_CTRL_PCM_SUR_EN (1 << 6) 34 #define TEGRA20_AC97_CTRL_PCM_CEN_DAC_EN (1 << 5) 35 #define TEGRA20_AC97_CTRL_LINE1_DAC_EN (1 << 4) 36 #define TEGRA20_AC97_CTRL_PCM_DAC_EN (1 << 3) 37 #define TEGRA20_AC97_CTRL_COLD_RESET (1 << 2) 38 #define TEGRA20_AC97_CTRL_WARM_RESET (1 << 1) 39 #define TEGRA20_AC97_CTRL_STM_EN (1 << 0) 40 41 /* TEGRA20_AC97_CMD */ 42 #define TEGRA20_AC97_CMD_CMD_ADDR_SHIFT 24 43 #define TEGRA20_AC97_CMD_CMD_ADDR_MASK (0xff << TEGRA20_AC97_CMD_CMD_ADDR_SHIFT) 44 #define TEGRA20_AC97_CMD_CMD_DATA_SHIFT 8 45 #define TEGRA20_AC97_CMD_CMD_DATA_MASK (0xffff << TEGRA20_AC97_CMD_CMD_DATA_SHIFT) 46 #define TEGRA20_AC97_CMD_CMD_ID_SHIFT 2 47 #define TEGRA20_AC97_CMD_CMD_ID_MASK (0x3 << TEGRA20_AC97_CMD_CMD_ID_SHIFT) 48 #define TEGRA20_AC97_CMD_BUSY (1 << 0) 49 50 /* TEGRA20_AC97_STATUS1 */ 51 #define TEGRA20_AC97_STATUS1_STA_ADDR1_SHIFT 24 52 #define TEGRA20_AC97_STATUS1_STA_ADDR1_MASK (0xff << TEGRA20_AC97_STATUS1_STA_ADDR1_SHIFT) 53 #define TEGRA20_AC97_STATUS1_STA_DATA1_SHIFT 8 54 #define TEGRA20_AC97_STATUS1_STA_DATA1_MASK (0xffff << TEGRA20_AC97_STATUS1_STA_DATA1_SHIFT) 55 #define TEGRA20_AC97_STATUS1_STA_VALID1 (1 << 2) 56 #define TEGRA20_AC97_STATUS1_STANDBY1 (1 << 1) 57 #define TEGRA20_AC97_STATUS1_CODEC1_RDY (1 << 0) 58 59 /* TEGRA20_AC97_FIFO1_SCR */ 60 #define TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_SHIFT 27 61 #define TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_MASK (0x1f << TEGRA20_AC97_FIFO_SCR_REC_MT_CNT_SHIFT) 62 #define TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_SHIFT 22 63 #define TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_MASK (0x1f << TEGRA20_AC97_FIFO_SCR_PB_MT_CNT_SHIFT) 64 #define TEGRA20_AC97_FIFO_SCR_REC_OVERRUN_INT_STA (1 << 19) 65 #define TEGRA20_AC97_FIFO_SCR_PB_UNDERRUN_INT_STA (1 << 18) 66 #define TEGRA20_AC97_FIFO_SCR_REC_FORCE_MT (1 << 17) 67 #define TEGRA20_AC97_FIFO_SCR_PB_FORCE_MT (1 << 16) 68 #define TEGRA20_AC97_FIFO_SCR_REC_FULL_EN (1 << 15) 69 #define TEGRA20_AC97_FIFO_SCR_REC_3QRT_FULL_EN (1 << 14) 70 #define TEGRA20_AC97_FIFO_SCR_REC_QRT_FULL_EN (1 << 13) 71 #define TEGRA20_AC97_FIFO_SCR_REC_EMPTY_EN (1 << 12) 72 #define TEGRA20_AC97_FIFO_SCR_PB_NOT_FULL_EN (1 << 11) 73 #define TEGRA20_AC97_FIFO_SCR_PB_QRT_MT_EN (1 << 10) 74 #define TEGRA20_AC97_FIFO_SCR_PB_3QRT_MT_EN (1 << 9) 75 #define TEGRA20_AC97_FIFO_SCR_PB_EMPTY_MT_EN (1 << 8) 76 77 struct tegra20_ac97 { 78 struct clk *clk_ac97; 79 struct snd_dmaengine_dai_dma_data capture_dma_data; 80 struct snd_dmaengine_dai_dma_data playback_dma_data; 81 struct reset_control *reset; 82 struct regmap *regmap; 83 int reset_gpio; 84 int sync_gpio; 85 }; 86 #endif /* __TEGRA20_AC97_H__ */ 87