imx6DL+TC358743 audio 問題

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imx6DL+TC358743 audio 問題

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frankweng
Contributor II

imx6DL  與 TC358743 ADU 介面只有採用Transmit 0/receive 3 mode,線路RXD/RXFS/RXCLK

RXFS(48KHZ) and RXCLK(3Mhz) 都由TC358743 產生,RXD 也有訊息

有關audio dts 設定如下

sound-hdmi-input {
   compatible = "fsl,imx-audio-tc358743";
   cpu-dai = <&ssi2>;
   model = "imx-audio-tc358743";
   mux-int-port = <2>;
   mux-ext-port = <5>;
   pinctrl-names = "default";
   pinctrl-0 = <&pinctrl_audmux_tc358743>;
   status = "okay";
};

&ssi2 {
   status = "okay";
};

pinctrl_audmux_tc358743: audmux-tc358743grp {
fsl,pins = <
   MX6QDL_PAD_DISP0_DAT13__AUD5_RXFS 0x130b0
   MX6QDL_PAD_DISP0_DAT14__AUD5_RXC 0x130b0
   MX6QDL_PAD_DISP0_DAT19__AUD5_RXD 0x130b0
>;
};

在TC358743 source code Audio  hw_params 相關設定如下

 snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_IF |
SND_SOC_DAIFMT_CBM_CFM);


 snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM);


snd_soc_dai_set_sysclk(codec_dai, 0,CODEC_CLOCK, SND_SOC_CLOCK_OUT);

snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffc, 0xffffffc, 2, 0);

snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,SND_SOC_CLOCK_IN);
ptcr=[0xe739c800]  pdcr=[0x8000]

debug log

root@FA30H_HW100:/proc/asound/card1/pcm0c # dmesg | grep -A15 tc358743-hifi
imx-tc358743 sound-hdmi-input: tc358743-hifi <-> 202c000.ssi mapping ok
rtc-m41t80 2-0068: setting system clock to 2018-05-10 11:29:19 UTC (1525951759)
VGEN1: disabling
SW4: disabling
usb_otg_vbus: disabling
ALSA device list:
   #0: imx-hdmi-soc
   #1: imx-audio-tc358743

tc358743 hdmi input audio 與 202c000.ssi mapp ok

tc358743 Audio 為 pcmC1D0c

使用tinycap 對 pcmC1D0c 進行錄音動作,但並無抓取任何資料

/sdcard/Music/hdmi_test.wav -D 1 -d 0 -r 48000 -c 2 <
Capturing sample: 2 ch, 48000 hz, 16 bit
Captured 0 frames

請問是那裡沒有設定成確,造成無法進行錄音,

是否有相關真對audio只使用Receive mode(RXD/RXFS/RXCLK) 設定文件。

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levisli
Contributor II

HI Frank,

我的audmux和pinmux设置如下:

MX6QDL_PAD_CSI0_DAT7__AUD3_RXD          0x130b0
MX6QDL_PAD_CSI0_DAT10__AUD3_RXC                0x130b0
MX6QDL_PAD_CSI0_DAT11__AUD3_RXFS               0x130b0

sound-tef6638-capture {                                             
                compatible = "fsl,imx-pcm-capture";                         
                model = "imx-tef6638-capture";                              
                ssi-controller = <&ssi1>;                                   
                audio-codec = <&pcm_capture>;                               
                mux-int-port = <1>;                                         
                mux-ext-port = <3>;                                        

};

static int imx_audmux_config(int slave, int master)                         
{                                                                           
    unsigned int ptcr, pdcr;                                                
    /*                                                                      
     * The port numbering in the hardware manual starts at 1, while         
     * the audmux API expects it starts at 0.                               
     */                                                                     
     slave = slave - 1;                                                     
     master = master - 1;                                                   
                                                                            
     ptcr = IMX_AUDMUX_V2_PTCR_SYN |                                        
            IMX_AUDMUX_V2_PTCR_TFSDIR |                                     
            IMX_AUDMUX_V2_PTCR_TFSEL(master) |                              
            IMX_AUDMUX_V2_PTCR_TCLKDIR |                                    
            IMX_AUDMUX_V2_PTCR_TCSEL(master);                               
     pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(master);                              
     imx_audmux_v2_configure_port(slave, ptcr, pdcr);                       
                                                                            
     ptcr = IMX_AUDMUX_V2_PTCR_SYN;                                         
     pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(slave);                               
     imx_audmux_v2_configure_port(master, ptcr, pdcr);                      
                                                                            
     return 0;                                                              
}

采样率44100,格式S16_LE,MCU一侧已经把TEF6638寄存器配置好了,BLCK和WS以及DATA信号都有,BLCK频率2.822M,WS信号44.1K都是对的,因此也不需要SOC这边去设置codec_dai的sys clock:

static int imx_tef6638_capture_hw_params(struct snd_pcm_substream *substream,
                                 struct snd_pcm_hw_params *params)          
{                                                                           
    struct snd_soc_pcm_runtime *rtd = substream->private_data;              
    struct snd_soc_dai *cpu_dai = rtd->cpu_dai;                             
    struct snd_soc_dai *codec_dai = rtd->codec_dai;                         
    unsigned int channels = params_channels(params);                        
    int ret = 0;                                                            
    u32 dai_format;                                                         
                                                                            
    printk("imx_tef6638_capture_hw_params\n");                              
    dai_format = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM;
                                                                            
    /* set cpu DAI configuration */                                         
    ret = snd_soc_dai_set_fmt(cpu_dai, dai_format);                         
    if (ret < 0) {                                                          
        printk("imx_tef6638_capture_hw_params: snd_soc_dai_set_fmt(cpi_dai) error!\n");
        return ret;                                                         
    }                                                                                                                        
    /* set i.MX active slot mask */                                         
    ret= snd_soc_dai_set_tdm_slot(cpu_dai,                                  
                             channels == 1 ? 1 : 3, //0xfffffffe : 0xfffffffc,
                             channels == 1 ? 1 : 3, //0xfffffffe : 0xfffffffc,
                             2, 32);                                        
    if (ret < 0) {                                                          
        printk("imx_tef6638_capture_hw_params: snd_soc_dai_set_tdm_slot error!\n");
        return ret;                                                         
    }                                                                       
                                                                            
    /* set the SSI system clock as input */                                 
    ret = snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_IN);          
    if (ret < 0) {                                                          
        printk("imx_tef6638_capture_hw_params: snd_soc_dai_set_sysclk error!\n");
        return ret;                                                         
    }                                                                       
                                                                            
//    snd_soc_dai_set_sysclk(codec_dai, 0, 44100 * 64, SND_SOC_CLOCK_OUT);  
    return 0;                                                               
}

声卡已经有了:

[    3.501166] tef6638-capture pcm_capture: TEF6638 Audio capture
[    3.513278] fsl-asrc 2034000.asrc: driver registered
[    3.515650] imx-tef6638-capture sound-tef6638-capture: imx_tef6638_capture_probe
[    3.517768] imx-tef6638-capture sound-tef6638-capture: tef6638-capture <-> 2028000.ssi mapping ok
[    3.518563] imx-tef6638-capture sound-tef6638-capture: snd_soc_register_card ok for tef6638 capture

只是在录音的时候会有"arecord: pcm_read:1828: read error: Input/output error."这个错误

实在是想不通还有什么地方不对。

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levisli
Contributor II

HI Frank,

还有什么建议吗?

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frankweng
Contributor II

問題已解~~

原因AUD2 to SSI2 routing 有誤,加上TC358743 Audio 也需修改

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levisli
Contributor II

HI Frank Weng

我现在跟你一样ssi作为slave,tef6638作为master提供BCLK和WS信号。

但是在录音的时候arecord -Dplughw:0,0 -c 2 -r 44100 -f S16_LE -d 5 /tmp/record.wav,

出现错误告警:

arecord: pcm_read:1828: read error: Input/output error.

你之前说“AUD2 to SSI2 routing 有誤”,请问这部分是修改哪里,如何修改呢?

谢谢!

LevisLi

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frankweng
Contributor II

我只有使用RXC and RXFS 的訊號,AUD2 到 SSI2 routing ,請你去看Data Sheet 第16章Digital Audio Multiplexer (AUDMUX) 及第61章Synchronous Serial Interface (SSI),AUDMUX 與 SSI 都他必須設定的方向

238 Views
frankweng
Contributor II

是否有人可以協助,imx6dl + TC358743 audio 依然無法動作

imx6dl I2S 設為slave,TC358743 I2S 設定master

  1. mux-int-port:AUD2,mux-ext-port :AUD5, cpu-dai = <&ssi2>
  2. 採用6線的設計,但HW只有使用RXD/RXC/RXFSTransmitpin都沒有接。因此code就設為Asynchronous mode(PTCRn[SYN] = 0)
  3. d/audmux的目錄也確認AUD5AUD2

      root@:/d/audmux # cat ssi1

      PDCR: 00008000

      PTCR: 6318c000

      TxFS input, TxClk input

      RxFS input, RxClk input

      Data received from SSI5

      root@:/d/audmux # cat ssi4

      PDCR: 00008000

      PTCR: 6318c000

      TxFS input, TxClk input

      RxFS input, RxClk input

      Data received from SSI5

    1. SSI 設定,SSIx_SCR[4]_SNY=0,SSIx_SCR[3]_NET=0,SSI_SCR=0x1145,SSI_STCR=0x30d,SSI_SRCR=0x38d

     SSI.png

    5. 開機也有出現 imx-tc358743 sound-hdmi-input: tc358743-hifi <-> 202c000.ssi mapping ok” 的訊息,使用tinycap 來抓去audio ,結果是抓不到資訊。

    是否有那裡設定錯誤,造成無法抓取聲音

    謝謝!!協助幫忙~~~

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