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Diffstat (limited to 'man4/dsp56k.4')
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diff --git a/man4/dsp56k.4 b/man4/dsp56k.4 deleted file mode 100644 index 36a856d..0000000 --- a/man4/dsp56k.4 +++ /dev/null @@ -1,107 +0,0 @@ -.\" Copyright (c) 2000 lars brinkhoff <lars@nocrew.org> -.\" -.\" SPDX-License-Identifier: GPL-2.0-or-later -.\" -.\" Modified, Thu Jan 27 19:16:19 CET 2000, lars@nocrew.org -.\" -.TH dsp56k 4 2023-10-31 "Linux man-pages 6.7" -.SH NAME -dsp56k \- DSP56001 interface device -.SH SYNOPSIS -.nf -.B #include <asm/dsp56k.h> -.P -.BI "ssize_t read(int " fd ", void *" data ", size_t " length ); -.BI "ssize_t write(int " fd ", void *" data ", size_t " length ); -.P -.BI "int ioctl(int " fd ", DSP56K_UPLOAD, struct dsp56k_upload *" program ); -.BI "int ioctl(int " fd ", DSP56K_SET_TX_WSIZE, int " wsize ); -.BI "int ioctl(int " fd ", DSP56K_SET_RX_WSIZE, int " wsize ); -.BI "int ioctl(int " fd ", DSP56K_HOST_FLAGS, struct dsp56k_host_flags *" flags ); -.BI "int ioctl(int " fd ", DSP56K_HOST_CMD, int " cmd ); -.fi -.SH CONFIGURATION -The -.I dsp56k -device is a character device with major number 55 and minor -number 0. -.SH DESCRIPTION -The Motorola DSP56001 is a fully programmable 24-bit digital signal -processor found in Atari Falcon030-compatible computers. -The \fIdsp56k\fP special file is used to control the DSP56001, and -to send and receive data using the bidirectional handshaked host -port. -.P -To send a data stream to the signal processor, use -.BR write (2) -to the -device, and -.BR read (2) -to receive processed data. -The data can be sent or -received in 8, 16, 24, or 32-bit quantities on the host side, but will -always be seen as 24-bit quantities in the DSP56001. -.P -The following -.BR ioctl (2) -calls are used to control the -\fIdsp56k\fP device: -.TP -.B DSP56K_UPLOAD -resets the DSP56001 and uploads a program. -The third -.BR ioctl (2) -argument must be a pointer to a \fIstruct dsp56k_upload\fP with members -\fIbin\fP pointing to a DSP56001 binary program, and \fIlen\fP set to -the length of the program, counted in 24-bit words. -.TP -.B DSP56K_SET_TX_WSIZE -sets the transmit word size. -Allowed values are in the range 1 to 4, -and is the number of bytes that will be sent at a time to the -DSP56001. -These data quantities will either be padded with bytes containing zero, -or truncated to fit the native 24-bit data format of the -DSP56001. -.TP -.B DSP56K_SET_RX_WSIZE -sets the receive word size. -Allowed values are in the range 1 to 4, -and is the number of bytes that will be received at a time from the DSP56001. -These data quantities will either truncated, -or padded with a null byte (\[aq]\e0\[aq]), -to fit the native 24-bit data format of the DSP56001. -.TP -.B DSP56K_HOST_FLAGS -read and write the host flags. -The host flags are four -general-purpose bits that can be read by both the hosting computer and -the DSP56001. -Bits 0 and 1 can be written by the host, and bits 2 and -3 can be written by the DSP56001. -.IP -To access the host flags, the third -.BR ioctl (2) -argument must be a pointer -to a \fIstruct dsp56k_host_flags\fP. -If bit 0 or 1 is set in the -\fIdir\fP member, the corresponding bit in \fIout\fP will be written -to the host flags. -The state of all host flags will be returned in -the lower four bits of the \fIstatus\fP member. -.TP -.B DSP56K_HOST_CMD -sends a host command. -Allowed values are in the range 0 to 31, and is a -user-defined command handled by the program running in the DSP56001. -.SH FILES -.I /dev/dsp56k -.\" .SH AUTHORS -.\" Fredrik Noring <noring@nocrew.org>, lars brinkhoff <lars@nocrew.org>, -.\" Tomas Berndtsson <tomas@nocrew.org>. -.SH SEE ALSO -.IR linux/include/asm\-m68k/dsp56k.h , -.IR linux/drivers/char/dsp56k.c , -.UR http://dsp56k.nocrew.org/ -.UE , -DSP56000/DSP56001 Digital Signal Processor User's Manual |