2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
91 lines
3.1 KiB
C
91 lines
3.1 KiB
C
#ifndef AUDIO_FW_H
|
|
#define AUDIO_FW_H
|
|
|
|
#include <minix/drivers.h>
|
|
#include <minix/chardriver.h>
|
|
#include <sys/ioc_sound.h>
|
|
|
|
|
|
_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 */
|
|
endpoint_t 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?*/
|
|
endpoint_t SourceProcNr; /* 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 */
|