| Rajeshwari Shinde | bd3841f | 2012-10-25 19:49:23 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2012 Samsung Electronics |
| 3 | * R. Chadrasekar <rcsekar@samsung.com> |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #ifndef __WM8994_H__ |
| 25 | #define __WM8994_H__ |
| 26 | |
| 27 | /* Sources for AIF1/2 SYSCLK - use with set_dai_sysclk() */ |
| 28 | #define WM8994_SYSCLK_MCLK1 1 |
| 29 | #define WM8994_SYSCLK_MCLK2 2 |
| 30 | #define WM8994_SYSCLK_FLL1 3 |
| 31 | #define WM8994_SYSCLK_FLL2 4 |
| 32 | |
| 33 | /* Avilable audi interface ports in wm8994 codec */ |
| 34 | enum en_audio_interface { |
| 35 | WM8994_AIF1 = 1, |
| 36 | WM8994_AIF2, |
| 37 | WM8994_AIF3 |
| 38 | }; |
| 39 | |
| 40 | /* OPCLK is also configured with set_dai_sysclk, specify division*10 as rate. */ |
| 41 | #define WM8994_SYSCLK_OPCLK 5 |
| 42 | |
| 43 | #define WM8994_FLL1 1 |
| 44 | #define WM8994_FLL2 2 |
| 45 | |
| 46 | #define WM8994_FLL_SRC_MCLK1 1 |
| 47 | #define WM8994_FLL_SRC_MCLK2 2 |
| 48 | #define WM8994_FLL_SRC_LRCLK 3 |
| 49 | #define WM8994_FLL_SRC_BCLK 4 |
| 50 | |
| 51 | /* maximum available digital interfac in the dac to configure */ |
| 52 | #define WM8994_MAX_AIF 2 |
| 53 | |
| 54 | #define WM8994_MAX_INPUT_CLK_FREQ 13500000 |
| 55 | #define WM8994_ID 0x8994 |
| 56 | |
| 57 | enum wm8994_vmid_mode { |
| 58 | WM8994_VMID_NORMAL, |
| 59 | WM8994_VMID_FORCE, |
| 60 | }; |
| 61 | |
| 62 | /* wm 8994 family devices */ |
| 63 | enum wm8994_type { |
| 64 | WM8994 = 0, |
| 65 | WM8958 = 1, |
| 66 | WM1811 = 2, |
| 67 | }; |
| 68 | |
| 69 | /* |
| 70 | * intialise wm8994 sound codec device for the given configuration |
| 71 | * |
| 72 | * @param pcodec_info pointer value of the sound codec info structure |
| 73 | * parsed from device tree |
| 74 | * @param aif_id enum value of codec interface port in which |
| 75 | * soc i2s is connected |
| 76 | * @param sampling_rate Sampling rate ranges between from 8khz to 96khz |
| 77 | * @param mclk_freq Master clock frequency. |
| 78 | * @param bits_per_sample bits per Sample can be 16 or 24 |
| 79 | * @param channels Number of channnels, maximum 2 |
| 80 | * |
| 81 | * @returns -1 for error and 0 Success. |
| 82 | */ |
| 83 | int wm8994_init(struct sound_codec_info *pcodec_info, |
| 84 | enum en_audio_interface aif_id, |
| 85 | int sampling_rate, int mclk_freq, |
| 86 | int bits_per_sample, unsigned int channels); |
| 87 | #endif /*__WM8994_H__ */ |