Stephen Warren | 4fb0384 | 2012-04-10 16:32:00 -0600 | [diff] [blame^] | 1 | /* |
| 2 | * tegra30_i2s.h - Definitions for Tegra30 I2S driver |
| 3 | * |
| 4 | * Copyright (c) 2011,2012, NVIDIA CORPORATION. All rights reserved. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms and conditions of the GNU General Public License, |
| 8 | * version 2, as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 13 | * more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 17 | */ |
| 18 | |
| 19 | #ifndef __TEGRA30_I2S_H__ |
| 20 | #define __TEGRA30_I2S_H__ |
| 21 | |
| 22 | #include "tegra_pcm.h" |
| 23 | |
| 24 | /* Register offsets from TEGRA30_I2S*_BASE */ |
| 25 | |
| 26 | #define TEGRA30_I2S_CTRL 0x0 |
| 27 | #define TEGRA30_I2S_TIMING 0x4 |
| 28 | #define TEGRA30_I2S_OFFSET 0x08 |
| 29 | #define TEGRA30_I2S_CH_CTRL 0x0c |
| 30 | #define TEGRA30_I2S_SLOT_CTRL 0x10 |
| 31 | #define TEGRA30_I2S_CIF_RX_CTRL 0x14 |
| 32 | #define TEGRA30_I2S_CIF_TX_CTRL 0x18 |
| 33 | #define TEGRA30_I2S_FLOWCTL 0x1c |
| 34 | #define TEGRA30_I2S_TX_STEP 0x20 |
| 35 | #define TEGRA30_I2S_FLOW_STATUS 0x24 |
| 36 | #define TEGRA30_I2S_FLOW_TOTAL 0x28 |
| 37 | #define TEGRA30_I2S_FLOW_OVER 0x2c |
| 38 | #define TEGRA30_I2S_FLOW_UNDER 0x30 |
| 39 | #define TEGRA30_I2S_LCOEF_1_4_0 0x34 |
| 40 | #define TEGRA30_I2S_LCOEF_1_4_1 0x38 |
| 41 | #define TEGRA30_I2S_LCOEF_1_4_2 0x3c |
| 42 | #define TEGRA30_I2S_LCOEF_1_4_3 0x40 |
| 43 | #define TEGRA30_I2S_LCOEF_1_4_4 0x44 |
| 44 | #define TEGRA30_I2S_LCOEF_1_4_5 0x48 |
| 45 | #define TEGRA30_I2S_LCOEF_2_4_0 0x4c |
| 46 | #define TEGRA30_I2S_LCOEF_2_4_1 0x50 |
| 47 | #define TEGRA30_I2S_LCOEF_2_4_2 0x54 |
| 48 | |
| 49 | /* Fields in TEGRA30_I2S_CTRL */ |
| 50 | |
| 51 | #define TEGRA30_I2S_CTRL_XFER_EN_TX (1 << 31) |
| 52 | #define TEGRA30_I2S_CTRL_XFER_EN_RX (1 << 30) |
| 53 | #define TEGRA30_I2S_CTRL_CG_EN (1 << 29) |
| 54 | #define TEGRA30_I2S_CTRL_SOFT_RESET (1 << 28) |
| 55 | #define TEGRA30_I2S_CTRL_TX_FLOWCTL_EN (1 << 27) |
| 56 | |
| 57 | #define TEGRA30_I2S_CTRL_OBS_SEL_SHIFT 24 |
| 58 | #define TEGRA30_I2S_CTRL_OBS_SEL_MASK (7 << TEGRA30_I2S_CTRL_OBS_SEL_SHIFT) |
| 59 | |
| 60 | #define TEGRA30_I2S_FRAME_FORMAT_LRCK 0 |
| 61 | #define TEGRA30_I2S_FRAME_FORMAT_FSYNC 1 |
| 62 | |
| 63 | #define TEGRA30_I2S_CTRL_FRAME_FORMAT_SHIFT 12 |
| 64 | #define TEGRA30_I2S_CTRL_FRAME_FORMAT_MASK (7 << TEGRA30_I2S_CTRL_FRAME_FORMAT_SHIFT) |
| 65 | #define TEGRA30_I2S_CTRL_FRAME_FORMAT_LRCK (TEGRA30_I2S_FRAME_FORMAT_LRCK << TEGRA30_I2S_CTRL_FRAME_FORMAT_SHIFT) |
| 66 | #define TEGRA30_I2S_CTRL_FRAME_FORMAT_FSYNC (TEGRA30_I2S_FRAME_FORMAT_FSYNC << TEGRA30_I2S_CTRL_FRAME_FORMAT_SHIFT) |
| 67 | |
| 68 | #define TEGRA30_I2S_CTRL_MASTER_ENABLE (1 << 10) |
| 69 | |
| 70 | #define TEGRA30_I2S_LRCK_LEFT_LOW 0 |
| 71 | #define TEGRA30_I2S_LRCK_RIGHT_LOW 1 |
| 72 | |
| 73 | #define TEGRA30_I2S_CTRL_LRCK_SHIFT 9 |
| 74 | #define TEGRA30_I2S_CTRL_LRCK_MASK (1 << TEGRA30_I2S_CTRL_LRCK_SHIFT) |
| 75 | #define TEGRA30_I2S_CTRL_LRCK_L_LOW (TEGRA30_I2S_LRCK_LEFT_LOW << TEGRA30_I2S_CTRL_LRCK_SHIFT) |
| 76 | #define TEGRA30_I2S_CTRL_LRCK_R_LOW (TEGRA30_I2S_LRCK_RIGHT_LOW << TEGRA30_I2S_CTRL_LRCK_SHIFT) |
| 77 | |
| 78 | #define TEGRA30_I2S_CTRL_LPBK_ENABLE (1 << 8) |
| 79 | |
| 80 | #define TEGRA30_I2S_BIT_CODE_LINEAR 0 |
| 81 | #define TEGRA30_I2S_BIT_CODE_ULAW 1 |
| 82 | #define TEGRA30_I2S_BIT_CODE_ALAW 2 |
| 83 | |
| 84 | #define TEGRA30_I2S_CTRL_BIT_CODE_SHIFT 4 |
| 85 | #define TEGRA30_I2S_CTRL_BIT_CODE_MASK (3 << TEGRA30_I2S_CTRL_BIT_CODE_SHIFT) |
| 86 | #define TEGRA30_I2S_CTRL_BIT_CODE_LINEAR (TEGRA30_I2S_BIT_CODE_LINEAR << TEGRA30_I2S_CTRL_BIT_CODE_SHIFT) |
| 87 | #define TEGRA30_I2S_CTRL_BIT_CODE_ULAW (TEGRA30_I2S_BIT_CODE_ULAW << TEGRA30_I2S_CTRL_BIT_CODE_SHIFT) |
| 88 | #define TEGRA30_I2S_CTRL_BIT_CODE_ALAW (TEGRA30_I2S_BIT_CODE_ALAW << TEGRA30_I2S_CTRL_BIT_CODE_SHIFT) |
| 89 | |
| 90 | #define TEGRA30_I2S_BITS_8 1 |
| 91 | #define TEGRA30_I2S_BITS_12 2 |
| 92 | #define TEGRA30_I2S_BITS_16 3 |
| 93 | #define TEGRA30_I2S_BITS_20 4 |
| 94 | #define TEGRA30_I2S_BITS_24 5 |
| 95 | #define TEGRA30_I2S_BITS_28 6 |
| 96 | #define TEGRA30_I2S_BITS_32 7 |
| 97 | |
| 98 | /* Sample container size; see {RX,TX}_MASK field in CH_CTRL below */ |
| 99 | #define TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT 0 |
| 100 | #define TEGRA30_I2S_CTRL_BIT_SIZE_MASK (7 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) |
| 101 | #define TEGRA30_I2S_CTRL_BIT_SIZE_8 (TEGRA30_I2S_BITS_8 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) |
| 102 | #define TEGRA30_I2S_CTRL_BIT_SIZE_12 (TEGRA30_I2S_BITS_12 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) |
| 103 | #define TEGRA30_I2S_CTRL_BIT_SIZE_16 (TEGRA30_I2S_BITS_16 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) |
| 104 | #define TEGRA30_I2S_CTRL_BIT_SIZE_20 (TEGRA30_I2S_BITS_20 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) |
| 105 | #define TEGRA30_I2S_CTRL_BIT_SIZE_24 (TEGRA30_I2S_BITS_24 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) |
| 106 | #define TEGRA30_I2S_CTRL_BIT_SIZE_28 (TEGRA30_I2S_BITS_28 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) |
| 107 | #define TEGRA30_I2S_CTRL_BIT_SIZE_32 (TEGRA30_I2S_BITS_32 << TEGRA30_I2S_CTRL_BIT_SIZE_SHIFT) |
| 108 | |
| 109 | /* Fields in TEGRA30_I2S_TIMING */ |
| 110 | |
| 111 | #define TEGRA30_I2S_TIMING_NON_SYM_ENABLE (1 << 12) |
| 112 | #define TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT 0 |
| 113 | #define TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US 0x7fff |
| 114 | #define TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_MASK (TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_MASK_US << TEGRA30_I2S_TIMING_CHANNEL_BIT_COUNT_SHIFT) |
| 115 | |
| 116 | /* Fields in TEGRA30_I2S_OFFSET */ |
| 117 | |
| 118 | #define TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_SHIFT 16 |
| 119 | #define TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_MASK_US 0x7ff |
| 120 | #define TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_MASK (TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_MASK_US << TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_SHIFT) |
| 121 | #define TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_SHIFT 0 |
| 122 | #define TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_MASK_US 0x7ff |
| 123 | #define TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_MASK (TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_MASK_US << TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_SHIFT) |
| 124 | |
| 125 | /* Fields in TEGRA30_I2S_CH_CTRL */ |
| 126 | |
| 127 | /* (FSYNC width - 1) in bit clocks */ |
| 128 | #define TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_SHIFT 24 |
| 129 | #define TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_MASK_US 0xff |
| 130 | #define TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_MASK (TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_MASK_US << TEGRA30_I2S_CH_CTRL_FSYNC_WIDTH_SHIFT) |
| 131 | |
| 132 | #define TEGRA30_I2S_HIGHZ_NO 0 |
| 133 | #define TEGRA30_I2S_HIGHZ_YES 1 |
| 134 | #define TEGRA30_I2S_HIGHZ_ON_HALF_BIT_CLK 2 |
| 135 | |
| 136 | #define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT 12 |
| 137 | #define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_MASK (3 << TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT) |
| 138 | #define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_NO (TEGRA30_I2S_HIGHZ_NO << TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT) |
| 139 | #define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_YES (TEGRA30_I2S_HIGHZ_YES << TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT) |
| 140 | #define TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_ON_HALF_BIT_CLK (TEGRA30_I2S_HIGHZ_ON_HALF_BIT_CLK << TEGRA30_I2S_CH_CTRL_HIGHZ_CTRL_SHIFT) |
| 141 | |
| 142 | #define TEGRA30_I2S_MSB_FIRST 0 |
| 143 | #define TEGRA30_I2S_LSB_FIRST 1 |
| 144 | |
| 145 | #define TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_SHIFT 10 |
| 146 | #define TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_MASK (1 << TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_SHIFT) |
| 147 | #define TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_MSB_FIRST (TEGRA30_I2S_MSB_FIRST << TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_SHIFT) |
| 148 | #define TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_LSB_FIRST (TEGRA30_I2S_LSB_FIRST << TEGRA30_I2S_CH_CTRL_RX_BIT_ORDER_SHIFT) |
| 149 | #define TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_SHIFT 9 |
| 150 | #define TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_MASK (1 << TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_SHIFT) |
| 151 | #define TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_MSB_FIRST (TEGRA30_I2S_MSB_FIRST << TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_SHIFT) |
| 152 | #define TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_LSB_FIRST (TEGRA30_I2S_LSB_FIRST << TEGRA30_I2S_CH_CTRL_TX_BIT_ORDER_SHIFT) |
| 153 | |
| 154 | #define TEGRA30_I2S_POS_EDGE 0 |
| 155 | #define TEGRA30_I2S_NEG_EDGE 1 |
| 156 | |
| 157 | #define TEGRA30_I2S_CH_CTRL_EGDE_CTRL_SHIFT 8 |
| 158 | #define TEGRA30_I2S_CH_CTRL_EGDE_CTRL_MASK (1 << TEGRA30_I2S_CH_CTRL_EGDE_CTRL_SHIFT) |
| 159 | #define TEGRA30_I2S_CH_CTRL_EGDE_CTRL_POS_EDGE (TEGRA30_I2S_POS_EDGE << TEGRA30_I2S_CH_CTRL_EGDE_CTRL_SHIFT) |
| 160 | #define TEGRA30_I2S_CH_CTRL_EGDE_CTRL_NEG_EDGE (TEGRA30_I2S_NEG_EDGE << TEGRA30_I2S_CH_CTRL_EGDE_CTRL_SHIFT) |
| 161 | |
| 162 | /* Sample size is # bits from BIT_SIZE minus this field */ |
| 163 | #define TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_SHIFT 4 |
| 164 | #define TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_MASK_US 7 |
| 165 | #define TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_MASK (TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_MASK_US << TEGRA30_I2S_CH_CTRL_RX_MASK_BITS_SHIFT) |
| 166 | |
| 167 | #define TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_SHIFT 0 |
| 168 | #define TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_MASK_US 7 |
| 169 | #define TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_MASK (TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_MASK_US << TEGRA30_I2S_CH_CTRL_TX_MASK_BITS_SHIFT) |
| 170 | |
| 171 | /* Fields in TEGRA30_I2S_SLOT_CTRL */ |
| 172 | |
| 173 | /* Number of slots in frame, minus 1 */ |
| 174 | #define TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOTS_SHIFT 16 |
| 175 | #define TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOTS_MASK_US 7 |
| 176 | #define TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOTS_MASK (TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOT_MASK_US << TEGRA30_I2S_SLOT_CTRL_TOTAL_SLOT_SHIFT) |
| 177 | |
| 178 | /* TDM mode slot enable bitmask */ |
| 179 | #define TEGRA30_I2S_SLOT_CTRL_RX_SLOT_ENABLES_SHIFT 8 |
| 180 | #define TEGRA30_I2S_SLOT_CTRL_RX_SLOT_ENABLES_MASK (0xff << TEGRA30_I2S_SLOT_CTRL_RX_SLOT_ENABLES_SHIFT) |
| 181 | |
| 182 | #define TEGRA30_I2S_SLOT_CTRL_TX_SLOT_ENABLES_SHIFT 0 |
| 183 | #define TEGRA30_I2S_SLOT_CTRL_TX_SLOT_ENABLES_MASK (0xff << TEGRA30_I2S_SLOT_CTRL_TX_SLOT_ENABLES_SHIFT) |
| 184 | |
| 185 | /* Fields in TEGRA30_I2S_CIF_RX_CTRL */ |
| 186 | /* Uses field from TEGRA30_AUDIOCIF_CTRL_* in tegra30_ahub.h */ |
| 187 | |
| 188 | /* Fields in TEGRA30_I2S_CIF_TX_CTRL */ |
| 189 | /* Uses field from TEGRA30_AUDIOCIF_CTRL_* in tegra30_ahub.h */ |
| 190 | |
| 191 | /* Fields in TEGRA30_I2S_FLOWCTL */ |
| 192 | |
| 193 | #define TEGRA30_I2S_FILTER_LINEAR 0 |
| 194 | #define TEGRA30_I2S_FILTER_QUAD 1 |
| 195 | |
| 196 | #define TEGRA30_I2S_FLOWCTL_FILTER_SHIFT 31 |
| 197 | #define TEGRA30_I2S_FLOWCTL_FILTER_MASK (1 << TEGRA30_I2S_FLOWCTL_FILTER_SHIFT) |
| 198 | #define TEGRA30_I2S_FLOWCTL_FILTER_LINEAR (TEGRA30_I2S_FILTER_LINEAR << TEGRA30_I2S_FLOWCTL_FILTER_SHIFT) |
| 199 | #define TEGRA30_I2S_FLOWCTL_FILTER_QUAD (TEGRA30_I2S_FILTER_QUAD << TEGRA30_I2S_FLOWCTL_FILTER_SHIFT) |
| 200 | |
| 201 | /* Fields in TEGRA30_I2S_TX_STEP */ |
| 202 | |
| 203 | #define TEGRA30_I2S_TX_STEP_SHIFT 0 |
| 204 | #define TEGRA30_I2S_TX_STEP_MASK_US 0xffff |
| 205 | #define TEGRA30_I2S_TX_STEP_MASK (TEGRA30_I2S_TX_STEP_MASK_US << TEGRA30_I2S_TX_STEP_SHIFT) |
| 206 | |
| 207 | /* Fields in TEGRA30_I2S_FLOW_STATUS */ |
| 208 | |
| 209 | #define TEGRA30_I2S_FLOW_STATUS_UNDERFLOW (1 << 31) |
| 210 | #define TEGRA30_I2S_FLOW_STATUS_OVERFLOW (1 << 30) |
| 211 | #define TEGRA30_I2S_FLOW_STATUS_MONITOR_INT_EN (1 << 4) |
| 212 | #define TEGRA30_I2S_FLOW_STATUS_COUNTER_CLR (1 << 3) |
| 213 | #define TEGRA30_I2S_FLOW_STATUS_MONITOR_CLR (1 << 2) |
| 214 | #define TEGRA30_I2S_FLOW_STATUS_COUNTER_EN (1 << 1) |
| 215 | #define TEGRA30_I2S_FLOW_STATUS_MONITOR_EN (1 << 0) |
| 216 | |
| 217 | /* |
| 218 | * There are no fields in TEGRA30_I2S_FLOW_TOTAL, TEGRA30_I2S_FLOW_OVER, |
| 219 | * TEGRA30_I2S_FLOW_UNDER; they are counters taking the whole register. |
| 220 | */ |
| 221 | |
| 222 | /* Fields in TEGRA30_I2S_LCOEF_* */ |
| 223 | |
| 224 | #define TEGRA30_I2S_LCOEF_COEF_SHIFT 0 |
| 225 | #define TEGRA30_I2S_LCOEF_COEF_MASK_US 0xffff |
| 226 | #define TEGRA30_I2S_LCOEF_COEF_MASK (TEGRA30_I2S_LCOEF_COEF_MASK_US << TEGRA30_I2S_LCOEF_COEF_SHIFT) |
| 227 | |
| 228 | struct tegra30_i2s { |
| 229 | struct snd_soc_dai_driver dai; |
| 230 | int cif_id; |
| 231 | struct clk *clk_i2s; |
| 232 | enum tegra30_ahub_txcif capture_i2s_cif; |
| 233 | enum tegra30_ahub_rxcif capture_fifo_cif; |
| 234 | struct tegra_pcm_dma_params capture_dma_data; |
| 235 | enum tegra30_ahub_rxcif playback_i2s_cif; |
| 236 | enum tegra30_ahub_txcif playback_fifo_cif; |
| 237 | struct tegra_pcm_dma_params playback_dma_data; |
| 238 | struct regmap *regmap; |
| 239 | u32 reg_ctrl; |
| 240 | }; |
| 241 | |
| 242 | #endif |