2440+2.6.33 UDA声卡移植（九）

参考：
     alsa声卡
  飞凌



移植 UDA1341 声卡驱动 ，使用的是platform 总线

1.gedit arch/arm/plat-s3c24xx/devs.c    //定义，添加如下内容
 
  #include
  #include

  添加 UDA1341 ,注意这里  S3C2410_GPB(4),这里有括号
/* UDA1341 */
static struct s3c24xx_uda134x_platform_data s3c24xx_uda134x_data = {
    .l3_clk = S3C2410_GPB(4),
    .l3_data = S3C2410_GPB(3),
    .l3_mode = S3C2410_GPB(2),
    .model = UDA134X_UDA1341,
};

struct platform_device s3c_device_uda134x = {
    .name = "s3c24xx_uda134x",
    .dev = {
        .platform_data    = &s3c24xx_uda134x_data,
    }
};
EXPORT_SYMBOL(s3c_device_uda134x);


2.gedit arch/arm/plat-s3c/include/plat/devs.h    //声明，添加如下内容

 extern struct platform_device s3c_device_uda134x;


3.#gedit arch/arm/mach-s3c2440/mach-smdk2440.c    //添加到设备列表

static struct platform_device *smdk2440_devices[] __initdata = {
    &s3c_device_usb,
    &s3c_device_lcd,
    &s3c_device_wdt,
    &s3c_device_i2c0,
    &s3c_device_iis,
    &dm9000_device,
    &s3c_device_uda134x,  # 添加
};



Device Drivers --->
    <*> Sound card support --->
        --- Sound card support
        <*> Advanced Linux Sound Architecture --->
            --- Advanced Linux Sound Architecture
            < > Sequencer support
            <*> OSS Mixer API
            <*> OSS PCM (digital audio) API
            [*] OSS PCM (digital audio) API - Include plugin system
            [ ] Dynamic device file minor numbers
            [*] Support old ALSA API
            [*] Verbose procfs contents
            [*] Verbose printk
            [ ] Debug
            [ ] Generic sound devices --->
            [ ] ARM sound devices --->
            [ ] SPI sound devices --->
            [*] USB sound devices --->
            <*> ALSA for SoC audio support --->
                --- ALSA for SoC audio support
                <*> SoC Audio for the Samsung S3C24XX chips
                < > SoC AC97 Audio support for LN2440SBC - ALC650
                <*> SoC I2S Audio support UDA134X wired to a S3C24XX
                < > Build all ASoC CODEC drivers
        < > Open Sound System (DEPRECATED) --->


启动：
s3c-sdi s3c2440-sdi: failed to get writeprotect
s3c-sdi: probe of s3c2440-sdi failed with error -16
No device for DAI UDA134X
No device for DAI s3c24xx-i2s
S3C24XX_UDA134X SoC Audio driver
UDA134X SoC Audio Codec
asoc: UDA134X <-> s3c24xx-i2s mapping ok
ALSA device list:
  #0: S3C24XX_UDA134X (UDA134X)
TCP cubic registered
NET: Registered protocol family 17

在开发板中测试文件：
[root@yuweixian yu]# cat /home/yu/xx.wav > /dev/dsp
  xx.wav 是我下载 的铃声
我们就可以听到音乐了  

错误集：

s3c-sdi: probe of s3c2440-sdi failed with error -16
ALSA device list:
  No soundcards found.
TCP cubic registered
NET: Registered protocol family 17
yaffs: dev is 32505858 name is "mtdblock2"

s3c-sdi: probe of s3c2440-sdi failed with error -16
No device for DAI UDA134X
No device for DAI s3c24xx-i2s
ALSA device list:
  No soundcards found.
TCP cubic registered