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https://github.com/followmsi/android_kernel_google_msm.git
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99f526976d
After upgrading to kernel 3.4, there is 5 second delay at the closing of PCM playback. The delay is due to missing EOS from QDSP6 audio session manager causing pcm close function of PCM platform driver to wait for 5 seconds. The root cause for missing EOS is that ALSA dynmic PCM shutdown sequence has changed. Now, trigger stop is called on the back-end DAI-LINK. Furthermore, back-end trigger stop is called before front-end trigger stop. Since sink stops rendering data, data at source will never get consumed. EOS event will not arrive. As trigger operation has to be atomic, it is very difficult to guarantee sequence on shutting down various modules in QDSP6. The decision is to abandon starting and stopping QDSP6 AFE port in trigger function. This decision is considered acceptable as playback and capture over SLIMBUS is no longer subject to strict sequence which Q6 AFE port must be started after CODEC configuration. Change-Id: I0cc1d8b7d058052d7fae55c84b6be46b5b0678e9 CRs-fixed: 373966 Signed-off-by: Patrick Lai <plai@codeaurora.org>
110 lines
3.5 KiB
C
110 lines
3.5 KiB
C
/* Copyright (c) 2010-2012, Code Aurora Forum. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __Q6AFE_H__
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#define __Q6AFE_H__
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#include <sound/apr_audio.h>
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#define MSM_AFE_MONO 0
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#define MSM_AFE_MONO_RIGHT 1
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#define MSM_AFE_MONO_LEFT 2
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#define MSM_AFE_STEREO 3
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#define MSM_AFE_4CHANNELS 4
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#define MSM_AFE_6CHANNELS 6
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#define MSM_AFE_8CHANNELS 8
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#define MSM_AFE_I2S_FORMAT_LPCM 0
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#define MSM_AFE_I2S_FORMAT_COMPR 1
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#define MSM_AFE_I2S_FORMAT_IEC60958_LPCM 2
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#define MSM_AFE_I2S_FORMAT_IEC60958_COMPR 3
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#define MSM_AFE_PORT_TYPE_RX 0
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#define MSM_AFE_PORT_TYPE_TX 1
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#define RT_PROXY_DAI_001_RX 0xE0
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#define RT_PROXY_DAI_001_TX 0xF0
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#define RT_PROXY_DAI_002_RX 0xF1
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#define RT_PROXY_DAI_002_TX 0xE1
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#define VIRTUAL_ID_TO_PORTID(val) ((val & 0xF) | 0x2000)
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enum {
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IDX_PRIMARY_I2S_RX = 0,
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IDX_PRIMARY_I2S_TX = 1,
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IDX_PCM_RX = 2,
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IDX_PCM_TX = 3,
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IDX_SECONDARY_I2S_RX = 4,
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IDX_SECONDARY_I2S_TX = 5,
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IDX_MI2S_RX = 6,
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IDX_MI2S_TX = 7,
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IDX_HDMI_RX = 8,
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IDX_RSVD_2 = 9,
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IDX_RSVD_3 = 10,
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IDX_DIGI_MIC_TX = 11,
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IDX_VOICE_RECORD_RX = 12,
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IDX_VOICE_RECORD_TX = 13,
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IDX_VOICE_PLAYBACK_TX = 14,
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IDX_SLIMBUS_0_RX = 15,
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IDX_SLIMBUS_0_TX = 16,
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IDX_SLIMBUS_1_RX = 17,
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IDX_SLIMBUS_1_TX = 18,
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IDX_SLIMBUS_2_RX = 19,
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IDX_SLIMBUS_2_TX = 20,
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IDX_SLIMBUS_3_RX = 21,
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IDX_SLIMBUS_3_TX = 22,
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IDX_SLIMBUS_4_RX = 23,
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IDX_SLIMBUS_4_TX = 24,
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IDX_INT_BT_SCO_RX = 25,
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IDX_INT_BT_SCO_TX = 26,
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IDX_INT_BT_A2DP_RX = 27,
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IDX_INT_FM_RX = 28,
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IDX_INT_FM_TX = 29,
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IDX_RT_PROXY_PORT_001_RX = 30,
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IDX_RT_PROXY_PORT_001_TX = 31,
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IDX_SECONDARY_PCM_RX = 32,
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IDX_SECONDARY_PCM_TX = 33,
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AFE_MAX_PORTS
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};
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int afe_open(u16 port_id, union afe_port_config *afe_config, int rate);
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int afe_close(int port_id);
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int afe_loopback(u16 enable, u16 rx_port, u16 tx_port);
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int afe_loopback_cfg(u16 enable, u16 dst_port, u16 src_port, u16 mode);
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int afe_sidetone(u16 tx_port_id, u16 rx_port_id, u16 enable, uint16_t gain);
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int afe_loopback_gain(u16 port_id, u16 volume);
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int afe_validate_port(u16 port_id);
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int afe_get_port_index(u16 port_id);
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int afe_start_pseudo_port(u16 port_id);
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int afe_stop_pseudo_port(u16 port_id);
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int afe_cmd_memory_map(u32 dma_addr_p, u32 dma_buf_sz);
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int afe_cmd_memory_map_nowait(u32 dma_addr_p, u32 dma_buf_sz);
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int afe_cmd_memory_unmap(u32 dma_addr_p);
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int afe_cmd_memory_unmap_nowait(u32 dma_addr_p);
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int afe_register_get_events(u16 port_id,
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void (*cb) (uint32_t opcode,
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uint32_t token, uint32_t *payload, void *priv),
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void *private_data);
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int afe_unregister_get_events(u16 port_id);
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int afe_rt_proxy_port_write(u32 buf_addr_p, int bytes);
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int afe_rt_proxy_port_read(u32 buf_addr_p, int bytes);
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int afe_port_start(u16 port_id, union afe_port_config *afe_config, u32 rate);
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int afe_port_stop_nowait(int port_id);
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int afe_apply_gain(u16 port_id, u16 gain);
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int afe_q6_interface_prepare(void);
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int afe_get_port_type(u16 port_id);
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/* if port_id is virtual, convert to physical..
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* if port_id is already physical, return physical
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*/
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int afe_convert_virtual_to_portid(u16 port_id);
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int afe_pseudo_port_start_nowait(u16 port_id);
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int afe_pseudo_port_stop_nowait(u16 port_id);
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#endif /* __Q6AFE_H__ */
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