| /* |
| * Copyright (C) 2016 Intel Corporation |
| * Authors: Sailaja Bandarupalli <sailaja.bandarupalli@intel.com> |
| * Ramesh Babu K V <ramesh.babu@intel.com> |
| * Vaibhav Agarwal <vaibhav.agarwal@intel.com> |
| * Jerome Anand <jerome.anand@intel.com> |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files |
| * (the "Software"), to deal in the Software without restriction, |
| * including without limitation the rights to use, copy, modify, merge, |
| * publish, distribute, sublicense, and/or sell copies of the Software, |
| * and to permit persons to whom the Software is furnished to do so, |
| * subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial |
| * portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #ifndef _INTEL_HDMI_AUDIO_H_ |
| #define _INTEL_HDMI_AUDIO_H_ |
| |
| #include "intel_hdmi_lpe_audio.h" |
| |
| #define PCM_INDEX 0 |
| #define MAX_PB_STREAMS 1 |
| #define MAX_CAP_STREAMS 0 |
| |
| #define HDMI_INFO_FRAME_WORD1 0x000a0184 |
| #define DP_INFO_FRAME_WORD1 0x00441b84 |
| #define FIFO_THRESHOLD 0xFE |
| #define DMA_FIFO_THRESHOLD 0x7 |
| #define BYTES_PER_WORD 0x4 |
| |
| /* Sampling rate as per IEC60958 Ver 3 */ |
| #define CH_STATUS_MAP_32KHZ 0x3 |
| #define CH_STATUS_MAP_44KHZ 0x0 |
| #define CH_STATUS_MAP_48KHZ 0x2 |
| #define CH_STATUS_MAP_88KHZ 0x8 |
| #define CH_STATUS_MAP_96KHZ 0xA |
| #define CH_STATUS_MAP_176KHZ 0xC |
| #define CH_STATUS_MAP_192KHZ 0xE |
| |
| #define MAX_SMPL_WIDTH_20 0x0 |
| #define MAX_SMPL_WIDTH_24 0x1 |
| #define SMPL_WIDTH_16BITS 0x1 |
| #define SMPL_WIDTH_24BITS 0x5 |
| #define CHANNEL_ALLOCATION 0x1F |
| #define VALID_DIP_WORDS 3 |
| #define LAYOUT0 0 |
| #define LAYOUT1 1 |
| #define SWAP_LFE_CENTER 0x00fac4c8 |
| #define AUD_CONFIG_CH_MASK 0x70 |
| |
| struct pcm_stream_info { |
| struct snd_pcm_substream *substream; |
| u64 buffer_rendered; |
| u32 ring_buf_size; |
| int substream_refcount; |
| bool running; |
| }; |
| |
| struct ring_buf_info { |
| u32 buf_addr; |
| u32 buf_size; |
| u8 is_valid; |
| }; |
| |
| /* |
| * struct snd_intelhad - intelhad driver structure |
| * |
| * @card: ptr to hold card details |
| * @connected: the monitor connection status |
| * @buf_info: ring buffer info |
| * @stream_info: stream information |
| * @eld: holds ELD info |
| * @curr_buf: pointer to hold current active ring buf |
| * @valid_buf_cnt: ring buffer count for stream |
| * @had_spinlock: driver lock |
| * @aes_bits: IEC958 status bits |
| * @buff_done: id of current buffer done intr |
| * @dev: platoform device handle |
| * @chmap: holds channel map info |
| * @underrun_count: PCM stream underrun counter |
| */ |
| struct snd_intelhad { |
| struct snd_card *card; |
| bool connected; |
| struct ring_buf_info buf_info[HAD_NUM_OF_RING_BUFS]; |
| struct pcm_stream_info stream_info; |
| unsigned char eld[HDMI_MAX_ELD_BYTES]; |
| bool dp_output; |
| enum intel_had_aud_buf_type curr_buf; |
| int valid_buf_cnt; |
| unsigned int aes_bits; |
| spinlock_t had_spinlock; |
| enum intel_had_aud_buf_type buff_done; |
| struct device *dev; |
| struct snd_pcm_chmap *chmap; |
| int underrun_count; |
| int tmds_clock_speed; |
| int link_rate; |
| |
| /* internal stuff */ |
| int irq; |
| void __iomem *mmio_start; |
| unsigned int had_config_offset; |
| struct work_struct hdmi_audio_wq; |
| struct mutex mutex; /* for protecting chmap and eld */ |
| }; |
| |
| #endif /* _INTEL_HDMI_AUDIO_ */ |