exSID_defs.h File Reference

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Macros
#define	XS_BDRATE   2000000
	2Mpbs
#define	XS_BUFFMS   40
	write buffer size in milliseconds of playback.
#define	XS_SIDCLK   1000000
	1MHz (for computation only, currently hardcoded in firmware)
#define	XS_RSBCLK   (XS_BDRATE/10)
	RS232 byte clock. Each RS232 byte is 10 bits long due to start and stop bits.
#define	XS_CYCCHR   (XS_SIDCLK/XS_RSBCLK)
	SID cycles between two consecutive chars.
#define	XS_USBLAT   1
	FTDI latency: 1-255ms in 1ms increments.
#define	XS_BUFFSZ   ((((XS_RSBCLK/1000)*XS_BUFFMS)/62)*62)
	Must be multiple of 62 or USB won't be happy.
#define	XS_LDMULT   501
	long delay SID cycle loop multiplier
#define	XS_MINDEL   (XS_CYCCHR)
	Smallest possible delay (with IOCTD1).
#define	XS_CYCIO   (2*XS_CYCCHR)
	minimum cycles between two consecutive I/Os (addr + data)
#define	XS_MAXADJ   7
	maximum encodable value for post write clock adjustment: must fit on 3 bits
#define	XS_LDOFFS   (3*XS_CYCCHR)
	long delay loop SID cycles offset
#define	XSP_MINDEL   2
	Smallest possible delay (with IOCTD1).
#define	XSP_CYCIO   3
	minimum cycles between two consecutive I/Os (addr + data)
#define	XSP_PRE_RD   2
#define	XSP_POSTRD   2
#define	XSP_MAXADJ   4
	maximum encodable value for post write clock adjustment: must fit on 3 bits
#define	XSP_LDOFFS   3
	long delay loop SID cycles offset
#define	XSP_CYCCS   2
	cycles lost in chipselect()
#define	XSP_AD_IOCTCP   0x3D
	Select PAL clock.
#define	XSP_AD_IOCTCN   0x3E
	Select NTSC clock.
#define	XSP_AD_IOCTC1   0x3F
	Select 1MHz clock.
#define	XSP_AD_IOCTA0   0x5D
	Audio Mix: 6581 L / 8580 R.
#define	XSP_AD_IOCTA1   0x5E
	Audio Mix: 8580 L / 6581 R.
#define	XSP_AD_IOCTA2   0x5F
	Audio Mix: 8580 L / 8580 R.
#define	XSP_AD_IOCTA3   0x7D
	Audio Mix: 6581 L / 6581 R.
#define	XSP_AD_IOCTAM   0x7E
	Audio Mute.
#define	XSP_AD_IOCTAU   0x7F
	Audio Unmute.
#define	XS_AD_IOCTD1   0x9D
	shortest delay (XS_MINDEL SID cycles)
#define	XS_AD_IOCTLD   0x9E
	polled delay, amount of SID cycles to wait must be given in data
#define	XS_AD_IOCTS0   0xBD
	select chip 0
#define	XS_AD_IOCTS1   0xBE
	select chip 1
#define	XS_AD_IOCTSB   0xBF
	select both chips. More...
#define	XS_AD_IOCTFV   0xFD
	Firmware version query.
#define	XS_AD_IOCTHV   0xFE
	Hardware version query.
#define	XS_AD_IOCTRS   0xFF
	SID reset.
#define	XS_USBVID   0x0403
	Default FTDI VID.
#define	XS_USBPID   0x6001
	Default FTDI PID.
#define	XS_USBDSC   "exSID USB"
#define	XSP_USBVID   0x0403
	Default FTDI VID.
#define	XSP_USBPID   0x6015
	Default FTDI PID.
#define	XSP_USBDSC   "exSID+ USB"
#define	XS_MODEL_STD   0
#define	XS_MODEL_PLUS   1
#define	xsdbg(format, ...)   /* nothing */
#define	ERRORBUF   256
#define	xserror(format, ...)   snprintf(xSerrstr, ERRORBUF, "(%s) ERROR " format, __func__, ## __VA_ARGS__)
#define	likely(x)   (x)
#define	unlikely(x)   (x)

Variables
char	xSerrstr [ERRORBUF+1]

Detailed Description

libexsid private definitions header file.

Note

These defines are closely related to the exSID firmware. Any modification that does not correspond to a related change in firmware will cause the device to operate unpredictably or not at all.

Macro Definition Documentation

XS_AD_IOCTSB

#define XS_AD_IOCTSB   0xBF

select both chips.

Warning

Invalid for reads: unknown behaviour!