pds의 파일 중

oss.c 파일에서

audio_fd = open("/dev/dsp", O_RDONLY, 0);
if (audio_fd < 0)
{
printf("Cannot open /dev/dsp ==> open /dev/sound/dsp n");
audio_fd = open("/dev/sound/dsp", O_RDONLY, 0); // devfs때문
if (audio_fd < 0)
{
printf("Cannot open /dev/sound/dspn");
return -1;
}
}

이 부분 중 O_RDONLY를 O_WRONLY로 바꾸시고, oss_write함수를 쓰면 그냥 play가 가능합니다.

file에서 읽어서 넣어주면 됩니다.

ps> 물론 sound driver가 잡혀있어야 합니다.

컴파일은 make depend;make 하면 됩니다.

에궁... sound driver 잡는 법 좀 가르켜주세요.
PDS에 있는 aesop2440_audio 파일을 컴파일하려고 했더니 오류 마구 뜹니다.
어디서부터 고치기 시작해야 할 지 막막한데 조언주시면 감사하겠습니다...

=================
aesop2440_sound.c:52: linux/dma-mapping.h: 해당 파일을 찾을 수 없습니다.
aesop2440_sound.c:59: asm/hardware/clock.h: 해당 파일을 찾을 수 없습니다.
aesop2440_sound.c:61: asm/arch/regs-iis.h: 해당 파일을 찾을 수 없습니다.
aesop2440_sound.c:63: aesop2440-audio.h: 해당 파일을 찾을 수 없습니다.
aesop2440_sound.c:115: parse error before `s3c2410_dma_client_t'
aesop2440_sound.c:115: warning: no semicolon at end of struct or union
aesop2440_sound.c:116: warning: type defaults to `int' in declaration of `audio_stream_t'
aesop2440_sound.c:116: warning: data definition has no type or storage class
aesop2440_sound.c:123: parse error before `output_stream'
aesop2440_sound.c:123: warning: type defaults to `int' in declaration of `output_stream'
aesop2440_sound.c:123: warning: data definition has no type or storage class
aesop2440_sound.c:124: parse error before `input_stream'
aesop2440_sound.c:124: warning: type defaults to `int' in declaration of `input_stream'
aesop2440_sound.c:124: warning: data definition has no type or storage class
aesop2440_sound.c:131: parse error before `->'
aesop2440_sound.c:131: stray '' in program
aesop2440_sound.c:132: parse error before `->'
aesop2440_sound.c:132: stray '' in program
aesop2440_sound.c:133: parse error before `->'
aesop2440_sound.c:155: parse error before `*'
aesop2440_sound.c:156: warning: function declaration isn't a prototype
aesop2440_sound.c: In function `audio_clear_buf':
aesop2440_sound.c:159: `s' undeclared (first use in this function)
aesop2440_sound.c:159: (Each undeclared identifier is reported only once
aesop2440_sound.c:159: for each function it appears in.)
aesop2440_sound.c:166: warning: implicit declaration of function `s3c2410_dma_ctrl'
aesop2440_sound.c:166: `S3C2410_DMAOP_FLUSH' undeclared (first use in this function)
aesop2440_sound.c:176: warning: implicit declaration of function `dma_free_coherent'
aesop2440_sound.c: At top level:
aesop2440_sound.c:191: parse error before `*'
aesop2440_sound.c:192: warning: function declaration isn't a prototype
aesop2440_sound.c: In function `audio_setup_buf':
aesop2440_sound.c:198: `s' undeclared (first use in this function)
aesop2440_sound.c:222: warning: implicit declaration of function `dma_alloc_coherent'
aesop2440_sound.c:222: warning: assignment makes pointer from integer without a cast
aesop2440_sound.c: At top level:
aesop2440_sound.c:262: parse error before `*'
aesop2440_sound.c:263: warning: function declaration isn't a prototype
aesop2440_sound.c: In function `audio_reset_buf':
aesop2440_sound.c:266: `s' undeclared (first use in this function)
aesop2440_sound.c:268: `S3C2410_DMAOP_FLUSH' undeclared (first use in this function)
aesop2440_sound.c: At top level:
aesop2440_sound.c:284: parse error before `*'
aesop2440_sound.c:285: warning: function declaration isn't a prototype
aesop2440_sound.c: In function `audio_dmaout_done_callback':
aesop2440_sound.c:286: `buf' undeclared (first use in this function)
aesop2440_sound.c:289: request for member `frag_wq' in something not a structure or union
aesop2440_sound.c:291: `result' undeclared (first use in this function)
aesop2440_sound.c:291: `S3C2410_RES_OK' undeclared (first use in this function)aesop2440_sound.c: At top level:
aesop2440_sound.c:300: parse error before `*'
aesop2440_sound.c:301: warning: function declaration isn't a prototype
aesop2440_sound.c: In function `audio_dmain_done_callback':
aesop2440_sound.c:302: `buf' undeclared (first use in this function)
aesop2440_sound.c:304: `size' undeclared (first use in this function)
aesop2440_sound.c:306: request for member `frag_wq' in something not a structure or union
aesop2440_sound.c:308: `result' undeclared (first use in this function)
aesop2440_sound.c:308: `S3C2410_RES_OK' undeclared (first use in this function)aesop2440_sound.c: In function `audio_sync':
aesop2440_sound.c:318: `s' undeclared (first use in this function)
aesop2440_sound.c:319: parse error before `*'
aesop2440_sound.c:326: `b' undeclared (first use in this function)
aesop2440_sound.c:329: warning: implicit declaration of function `s3c2410_dma_enqueue'
aesop2440_sound.c:331: stray '' in program
aesop2440_sound.c:342: parse error before `static'
aesop2440_sound.c:348: `from' undeclared (first use in this function)
aesop2440_sound.c:348: `count' undeclared (first use in this function)
aesop2440_sound.c:355: warning: type defaults to `int' in declaration of `type
name'
aesop2440_sound.c:357: `dst' undeclared (first use in this function)
aesop2440_sound.c:360: `end' undeclared (first use in this function)
aesop2440_sound.c:366: warning: type defaults to `int' in declaration of `type
name'
aesop2440_sound.c:380: warning: type defaults to `int' in declaration of `type
name'
aesop2440_sound.c: In function `aesop2440_audio_write':
aesop2440_sound.c:391: `s' undeclared (first use in this function)
aesop2440_sound.c:392: parse error before `int'
aesop2440_sound.c:417: `ret' undeclared (first use in this function)
aesop2440_sound.c:430: `chunksize' undeclared (first use in this function)
aesop2440_sound.c:448: warning: implicit declaration of function `copy_from_user_mono_stereo'
aesop2440_sound.c:468: stray '' in program
aesop2440_sound.c:479: parse error before `static'
aesop2440_sound.c:484: parse error before `int'
aesop2440_sound.c:514: stray '' in program
aesop2440_sound.c:544: warning: passing arg 1 of `copy_to_user' discards qualifiers from pointer target type
aesop2440_sound.c:565: stray '' in program
aesop2440_sound.c:576: parse error before `static'
aesop2440_sound.c:586: request for member `active' in something not a structure or union
aesop2440_sound.c:588: request for member `buffers' in something not a structure or union
aesop2440_sound.c:591: request for member `frag_wq' in something not a structure or union
aesop2440_sound.c:591: `wait' undeclared (first use in this function)
aesop2440_sound.c:593: request for member `nbfrags' in something not a structure or union
aesop2440_sound.c:595: request for member `buffers' in something not a structure or union
aesop2440_sound.c:596: `mask' undeclared (first use in this function)
aesop2440_sound.c:603: request for member `active' in something not a structure or union
aesop2440_sound.c:605: request for member `buffers' in something not a structure or union
aesop2440_sound.c:607: request for member `frag_wq' in something not a structure or union
aesop2440_sound.c:611: request for member `nbfrags' in something not a structure or union
aesop2440_sound.c:613: request for member `buffers' in something not a structure or union
aesop2440_sound.c:623: parse error before `static'
aesop2440_sound.c:627: warning: control reaches end of non-void function
aesop2440_sound.c: In function `iispsr_value':
aesop2440_sound.c:646: warning: implicit declaration of function `clk_get_rate'aesop2440_sound.c:646: warning: implicit declaration of function `clk_get'
aesop2440_sound.c:646: `S_CLOCK_FREQ' undeclared (first use in this function)
aesop2440_sound.c: In function `audio_set_dsp_speed':
aesop2440_sound.c:687: `S_CLOCK_FREQ' undeclared (first use in this function)
aesop2440_sound.c:695: request for member `rate' in something not a structure or union
aesop2440_sound.c:695: request for member `rate' in something not a structure or union
aesop2440_sound.c:684: warning: `tmp' might be used uninitialized in this function
aesop2440_sound.c: At top level:
aesop2440_sound.c:703: parse error before `*'
aesop2440_sound.c:704: warning: function declaration isn't a prototype
aesop2440_sound.c: In function `audio_set_fragments':
aesop2440_sound.c:705: `s' undeclared (first use in this function)
aesop2440_sound.c:709: `val' undeclared (first use in this function)
aesop2440_sound.c: In function `aesop2440_audio_ioctl':
aesop2440_sound.c:770: request for member `fragsize' in something not a structure or union
aesop2440_sound.c:772: request for member `fragsize' in something not a structure or union
aesop2440_sound.c:803: `s' undeclared (first use in this function)
aesop2440_sound.c:804: parse error before `*'
aesop2440_sound.c:806: `flag' undeclared (first use in this function)
aesop2440_sound.c:806: `sum' undeclared (first use in this function)
aesop2440_sound.c:806: `inf' undeclared (first use in this function)
aesop2440_sound.c:807: parse error before `)'
aesop2440_sound.c:817: `err' undeclared (first use in this function)
aesop2440_sound.c:823: `i' undeclared (first use in this function)
aesop2440_sound.c:830: `frags' undeclared (first use in this function)
aesop2440_sound.c:831: `bytes' undeclared (first use in this function)
aesop2440_sound.c:835: warning: type defaults to `int' in declaration of `__r1'aesop2440_sound.c:835: warning: type defaults to `int' in declaration of `__p'
aesop2440_sound.c:836: warning: type defaults to `int' in declaration of `__r1'aesop2440_sound.c:836: warning: type defaults to `int' in declaration of `__p'
aesop2440_sound.c:837: warning: type defaults to `int' in declaration of `__r1'aesop2440_sound.c:837: warning: type defaults to `int' in declaration of `__p'
aesop2440_sound.c:838: warning: type defaults to `int' in declaration of `__r1'aesop2440_sound.c:838: warning: type defaults to `int' in declaration of `__p'
aesop2440_sound.c:842: case label not within a switch statement
aesop2440_sound.c:845: parse error before `*'
aesop2440_sound.c:847: parse error before `)'
aesop2440_sound.c:870: warning: type defaults to `int' in declaration of `__r1'aesop2440_sound.c:870: warning: type defaults to `int' in declaration of `__p'
aesop2440_sound.c:871: warning: type defaults to `int' in declaration of `__r1'aesop2440_sound.c:871: warning: type defaults to `int' in declaration of `__p'
aesop2440_sound.c:872: warning: type defaults to `int' in declaration of `__r1'aesop2440_sound.c:872: warning: type defaults to `int' in declaration of `__p'
aesop2440_sound.c:873: warning: type defaults to `int' in declaration of `__r1'aesop2440_sound.c:873: warning: type defaults to `int' in declaration of `__p'
aesop2440_sound.c:874: break statement not within loop or switch
aesop2440_sound.c: At top level:
aesop2440_sound.c:877: parse error before `case'
aesop2440_sound.c: In function `aesop2440_audio_open':
aesop2440_sound.c:948: request for member `fragsize' in something not a structure or union
aesop2440_sound.c:949: request for member `nbfrags' in something not a structure or union
aesop2440_sound.c:950: request for member `channels' in something not a structure or union
aesop2440_sound.c:954: request for member `frag_wq' in something not a structure or union
aesop2440_sound.c:958: request for member `fragsize' in something not a structure or union
aesop2440_sound.c:959: request for member `nbfrags' in something not a structure or union
aesop2440_sound.c:960: request for member `channels' in something not a structure or union
aesop2440_sound.c:964: request for member `frag_wq' in something not a structure or union
aesop2440_sound.c: At top level:
aesop2440_sound.c:1078: parse error before `*'
aesop2440_sound.c:1082: warning: function declaration isn't a prototype
aesop2440_sound.c: In function `audio_init_dma':
aesop2440_sound.c:1085: `s' undeclared (first use in this function)
aesop2440_sound.c:1085: `S3C2410_DMA_CH2' undeclared (first use in this function)
aesop2440_sound.c:1087: warning: implicit declaration of function `s3c2410_dma_request'
aesop2440_sound.c:1093: warning: implicit declaration of function `s3c2410_dma_config'
aesop2440_sound.c:1093: `S3C2410_DCON_CH2_I2SSDO' undeclared (first use in this function)
aesop2440_sound.c:1093: `S3C2410_DCON_SYNC_PCLK' undeclared (first use in this
function)
aesop2440_sound.c:1093: `S3C2410_DCON_HANDSHAKE' undeclared (first use in this
function)
aesop2440_sound.c:1096: warning: implicit declaration of function `s3c2410_dma_setflags'
aesop2440_sound.c:1096: `S3C2410_DMAF_AUTOSTART' undeclared (first use in this
function)
aesop2440_sound.c:1098: warning: implicit declaration of function `s3c2410_dma_set_buffdone_fn'
aesop2440_sound.c:1099: warning: implicit declaration of function `s3c2410_dma_devconfig'
aesop2440_sound.c:1099: `S3C2410_DMASRC_MEM' undeclared (first use in this function)
aesop2440_sound.c:1099: `BUF_ON_APB' undeclared (first use in this function)
aesop2440_sound.c:1107: `S3C2410_DMA_CH1' undeclared (first use in this function)
aesop2440_sound.c:1115: `S3C2410_DCON_SRCSHIFT' undeclared (first use in this function)
aesop2440_sound.c:1121: `S3C2410_DMASRC_HW' undeclared (first use in this function)
aesop2440_sound.c: At top level:
aesop2440_sound.c:1131: parse error before `*'
aesop2440_sound.c:1132: warning: function declaration isn't a prototype
aesop2440_sound.c: In function `audio_clear_dma':
aesop2440_sound.c:1133: warning: implicit declaration of function `s3c2410_dma_free'
aesop2440_sound.c:1133: `s' undeclared (first use in this function)
aesop2440_sound.c: At top level:
aesop2440_sound.c:1146: `aesop2440_audio_llseek' undeclared here (not in a function)
aesop2440_sound.c:1146: initializer element is not constant
aesop2440_sound.c:1146: (near initialization for `aesop2440_audio_fops.llseek')aesop2440_sound.c:1148: `aesop2440_audio_read' undeclared here (not in a function)
aesop2440_sound.c:1148: initializer element is not constant
aesop2440_sound.c:1148: (near initialization for `aesop2440_audio_fops.read')
aesop2440_sound.c:1149: `aesop2440_audio_poll' undeclared here (not in a function)
aesop2440_sound.c:1149: initializer element is not constant
aesop2440_sound.c:1149: (near initialization for `aesop2440_audio_fops.poll')
aesop2440_sound.c:1154: initializer element is not constant
aesop2440_sound.c:1154: (near initialization for `aesop2440_audio_fops.owner')
aesop2440_sound.c:1154: initializer element is not constant
aesop2440_sound.c:1154: (near initialization for `aesop2440_audio_fops.owner')
aesop2440_sound.c:1154: initializer element is not constant
aesop2440_sound.c:1154: (near initialization for `aesop2440_audio_fops')
aesop2440_sound.c: In function `aesop2440_audio_probe':
aesop2440_sound.c:1236: request for member `dma_ch' in something not a structure or union
aesop2440_sound.c:1236: `S3C2410_DMA_CH2' undeclared (first use in this function)
aesop2440_sound.c:1237: request for member `dmaclient' in something not a structure or union
aesop2440_sound.c:1245: request for member `dma_ch' in something not a structure or union
aesop2440_sound.c:1245: `S3C2410_DMA_CH1' undeclared (first use in this function)
aesop2440_sound.c:1246: request for member `dmaclient' in something not a structure or union
aesop2440_sound.c: At top level:
aesop2440_sound.c:126: warning: `ao_dcon' defined but not used
aesop2440_sound.c:126: warning: `ai_dcon' defined but not used
aesop2440_sound.c:150: warning: `set_iis_bus_to_duplex_mode' declared `static'
but never defined
aesop2440_sound.c:263: warning: `audio_reset_buf' defined but not used
make: *** [aesop2440_sound.o] 오류 1

커널을 재 포팅하셔야 할 듯 하네요....

aesop sound driver를 커널에 맞게 맞춰야 할 듯 합니다.
쉽게 말로 설명할 수 없는 문제인 듯....