文件列表:

工作汇报4.21\record.txt (1397, 2008-04-22)
工作汇报4.21\WM8782_driver_master\mx27-wm8782-pcm.c (24412, 2008-04-23)
工作汇报4.21\WM8782_driver_master\mx27-wm8782-pcm.c.bak (27948, 2008-04-18)
工作汇报4.21\WM8782_driver_master\mxc-pcm.h (742, 2008-04-01)
工作汇报4.21\WM8782_driver_master\mxc-ssi-i2s.ko (7975, 2008-04-17)
工作汇报4.21\WM8782_driver_master\mxc_i2s.c (7092, 2008-04-23)
工作汇报4.21\WM8782_driver_master\mxc_i2s.c.bak (15897, 2008-04-18)
工作汇报4.21\WM8782_driver_master\snd-mx27-wm8782-mixer.ko (7736, 2008-04-18)
工作汇报4.21\WM8782_driver_master\snd-mx27-wm8782-pcm.ko (11041, 2008-04-17)
工作汇报4.21\WM8782_driver_master\snd-mx27-wm8782.ko (7398, 2008-04-18)
工作汇报4.21\WM8782_driver_master\wm8782-mixer.c (10370, 2008-04-02)
工作汇报4.21\WM8782_driver_master\wm8782-mixer.h (3944, 2008-04-02)
工作汇报4.21\WM8782_driver_master\wm8782.c (5817, 2008-04-23)
工作汇报4.21\WM8782_driver_master\wm8782.h (1429, 2008-04-02)
工作汇报4.21\WM8782_driver_slave\mx27-wm8782-pcm.c (23512, 2008-04-23)
工作汇报4.21\WM8782_driver_slave\mxc-pcm.h (742, 2008-04-01)
工作汇报4.21\WM8782_driver_slave\mxc-ssi-i2s.ko (7900, 2008-04-21)
工作汇报4.21\WM8782_driver_slave\mxc_i2s.c (7077, 2008-04-23)
工作汇报4.21\WM8782_driver_slave\snd-mx27-wm8782-mixer.ko (7736, 2008-04-02)
工作汇报4.21\WM8782_driver_slave\snd-mx27-wm8782-pcm.ko (11050, 2008-04-21)
工作汇报4.21\WM8782_driver_slave\snd-mx27-wm8782.ko (7398, 2008-04-17)
工作汇报4.21\WM8782_driver_slave\wm8782-mixer.c (10370, 2008-04-02)
工作汇报4.21\WM8782_driver_slave\wm8782-mixer.h (3944, 2008-04-02)
工作汇报4.21\WM8782_driver_slave\wm8782.c (5817, 2008-04-23)
工作汇报4.21\WM8782_driver_slave\wm8782.h (1429, 2008-04-02)
工作汇报4.21\WM8782_driver_master (0, 2008-04-23)
工作汇报4.21\WM8782_driver_slave (0, 2008-04-21)
工作汇报4.21 (0, 2008-04-22)

WM8782子板使用说明 1、硬件说明： ①WM8782子板。在该子板上j1(Line-in),j2(Mic-in),j3(Headerphone out) 2、软件说明： ①所需文件： mxc_i2s.c/mx27-wm8782-pcm.c mxc-pcm.h/wm8782.c wm8782.h/wm8782-mixer.c wm8782-mixer.h 把文件mxc_i2s.c放到目录drivers\mxc\ssi 把文件mx27-wm8782-pcm.c mxc-pcm.h/wm8782.c wm8782.h/wm8782-mixer.c wm8782-mixer.h 放到目录sound\arm\ ②修改Makefile,Kconfig drivers\mxc\ssi\Makefile添加如下代码： obj-$(CONFIG_MX27_SSI_I2S)+= mxc-ssi-i2s.o mxc-ssi-i2s-objs := mxc_i2s.o drivers\mxc\ssi\Kconfig添加如下代码： config MX27_SSI_I2S tristate "mxc i2s slave mode" depends on MXC_SSI ---help--- Say Y to support mx27 ssi for i2s slave mode. sound\arm\Makefile添加如下代码： CFLAGS_mx27-wm8782-pcm.o = -I$(TOPDIR)/drivers/mxc obj-$(CONFIG_SND_MX27_WM8782_PCM) += snd-mx27-wm8782-pcm.o snd-mx27-wm8782-pcm-objs := mx27-wm8782-pcm.o obj-$(CONFIG_SND_WM8782_MIXER) += snd-mx27-wm8782-mixer.o snd-mx27-wm8782-mixer-objs := wm8782-mixer.o obj-$(CONFIG_SND_WM8782) += snd-mx27-wm8782.o snd-mx27-wm8782-objs := wm8782.o sound\arm\Kconfig添加如下代码： config SND_WM8782 tristate "WM8782 codec support" depends on SND && ARCH_MXC help Say Y here to include support for wm8782 codec. config SND_WM8782_MIXER tristate "WM8782 mixer support" depends on SND && ARCH_MXC help Say Y here to include support for wm8782 codec alsa mixer. config SND_MX27_WM8782_PCM tristate "WM8782 pcm support" depends on SND && ARCH_MXC && MXC_DAM && MXC_SSI select SND_PCM help Say Y here to include support for wm8782 codec pcm ③内核配置选项： device drivers-->mxc support drivers-->mxc ssi support-->mxc i2s slave mode,Y\M device drivers-->sound-->advanced linux sound architecture-->alsa arm devices-- >wm8782 codec support,Y\M device drivers-->sound-->advanced linux sound architecture-->alsa arm devices-- >wm8782 mixer support ,Y\M device drivers-->sound-->advanced linux sound architecture-->alsa arm devices-- >wm8782 pcm support,Y\M ④配置mixer: 执行alsamixer进行相应的配置。默认情况下可以播放，和mic录音。 ⑤加载模块： insmod mxc-ssi-i2s.ko insmod snd-mx27-wm8782-mixer.ko insmod snd-mx27-wm8782-pcm.ko insmod snd-mx27-wm8782.ko ⑥测试： 录音： 8k,stereo录音:arecord -f S16_LE -r 8000 -c 2 -t wav -d 10 /tmp/rec 注：支持8k录音

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