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new base libaudiodriver out of -lcommon in drivers/audio.

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- this lets the drivers that used that library be compiled easily with
   different compilers.
This commit is contained in:
Ben Gras
2010-08-25 11:03:53 +00:00
parent cb86231930
commit 0f4eda33eb
12 changed files with 11 additions and 17 deletions
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3
include/Makefile
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@@ -25,7 +25,8 @@ INCS+= minix/a.out.h minix/bitmap.h minix/callnr.h minix/cdrom.h \
minix/spin.h minix/sys_config.h minix/sysinfo.h minix/syslib.h \
minix/sysutil.h minix/timers.h minix/tty.h minix/type.h minix/types.h \
minix/u64.h minix/vfsif.h minix/vm.h minix/vtreefs.h \
minix/compiler.h minix/compiler-ack.h minix/sha2.h minix/sha1.h minix/md5.h
minix/compiler.h minix/compiler-ack.h minix/sha2.h minix/sha1.h minix/md5.h \
minix/audio_fw.h
INCS+= net/hton.h net/if.h net/ioctl.h net/netlib.h
INCS+= net/gen/arp_io.h net/gen/dhcp.h net/gen/ether.h \
net/gen/eth_hdr.h net/gen/eth_io.h net/gen/icmp.h \

102
include/minix/audio_fw.h Normal file
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@@ -0,0 +1,102 @@
#ifndef AUDIO_FW_H
#define AUDIO_FW_H
#include <minix/drivers.h>
#include <minix/driver.h>
#include <sys/ioc_sound.h>
/* change to DEBUG to 1 to print debug info and error messages */
#define DEBUG 0
#if DEBUG
#define dprint printf
#else
#define dprint (void)
#endif
#define error printf
_PROTOTYPE( int drv_init, (void) );
_PROTOTYPE( int drv_init_hw, (void) );
_PROTOTYPE( int drv_reset, (void) );
_PROTOTYPE( int drv_start, (int sub_dev, int DmaMode) );
_PROTOTYPE( int drv_stop, (int sub_dev) );
_PROTOTYPE( int drv_set_dma, (u32_t dma, u32_t length, int chan) );
_PROTOTYPE( int drv_reenable_int, (int chan) );
_PROTOTYPE( int drv_int_sum, (void) );
_PROTOTYPE( int drv_int, (int sub_dev) );
_PROTOTYPE( int drv_pause, (int chan) );
_PROTOTYPE( int drv_resume, (int chan) );
_PROTOTYPE( int drv_io_ctl, (int request, void * val, int * len, int sub_dev) );
_PROTOTYPE( int drv_get_irq, (char *irq) );
_PROTOTYPE( int drv_get_frag_size, (u32_t *frag_size, int sub_dev) );
/* runtime status fields */
typedef struct {
int readable;
int writable;
int DmaSize;
int NrOfDmaFragments;
int MinFragmentSize;
int NrOfExtraBuffers;
int Nr; /* sub device number */
int Opened; /* sub device opened */
int DmaBusy; /* is dma busy? */
int DmaMode; /* DEV_WRITE / DEV_READ */
int DmaReadNext; /* current dma buffer */
int DmaFillNext; /* next dma buffer to fill */
int DmaLength;
int BufReadNext; /* start of extra circular buffer */
int BufFillNext; /* end of extra circular buffer */
int BufLength;
int RevivePending; /* process waiting for this dev? */
int ReviveStatus; /* return val when proc unblocked */
int ReviveProcNr; /* the process to unblock */
cp_grant_id_t ReviveGrant; /* grant id associated with io */
void *UserBuf; /* address of user's data buffer */
int ReadyToRevive; /* are we ready to revive process?*/
int NotifyProcNr; /* process to send notify to (FS) */
u32_t FragSize; /* dma fragment size */
char *DmaBuf; /* the dma buffer; extra space for
page alignment */
phys_bytes DmaPhys; /* physical address of dma buffer */
char* DmaPtr; /* pointer to aligned dma buffer */
int OutOfData; /* all buffers empty? */
char *ExtraBuf; /* don't use extra buffer;just
declare a pointer to supress
error messages */
} sub_dev_t;
typedef struct {
int minor_dev_nr;
int read_chan;
int write_chan;
int io_ctl;
} special_file_t;
typedef struct {
char* DriverName;
int NrOfSubDevices;
int NrOfSpecialFiles;
} drv_t;
EXTERN drv_t drv;
EXTERN sub_dev_t sub_dev[];
EXTERN special_file_t special_file[];
/* Number of bytes you can DMA before hitting a 64K boundary: */
#define dma_bytes_left(phys) \
((unsigned) (sizeof(int) == 2 ? 0 : 0x10000) - (unsigned) ((phys) & 0xFFFF))
#define NO_CHANNEL -1
#define TRUE 1
#define FALSE 0
#define NO_DMA 0
#endif /* AUDIO_FW_H */