arch/m68k/atari/debug.c - fp2-dev/kernel/msm - Gitiles

 /*
  * linux/arch/m68k/atari/debug.c
  *
  * Atari debugging and serial console stuff
  *
  * Assembled of parts of former atari/config.c 97-12-18 by Roman Hodek
  *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file COPYING in the main directory of this archive
  * for more details.
  */

 #include <linux/types.h>
 #include <linux/tty.h>
 #include <linux/console.h>
 #include <linux/init.h>
 #include <linux/delay.h>

 #include <asm/atarihw.h>
 #include <asm/atariints.h>

 extern char m68k_debug_device[];

 /* Flag that Modem1 port is already initialized and used */
 int atari_MFP_init_done;
 /* Flag that Modem1 port is already initialized and used */
 int atari_SCC_init_done;
 /* Can be set somewhere, if a SCC master reset has already be done and should
  * not be repeated; used by kgdb */
 int atari_SCC_reset_done;

 static struct console atari_console_driver = {
 	.name =		"debug",
 	.flags =	CON_PRINTBUFFER,
 	.index =	-1,
 };


 static inline void ata_mfp_out (char c)
 {
     while (!(mfp.trn_stat & 0x80)) /* wait for tx buf empty */
 	barrier ();
     mfp.usart_dta = c;
 }

 void atari_mfp_console_write (struct console *co, const char *str,
 			      unsigned int count)
 {
     while (count--) {
 	if (*str == '\n')
 	    ata_mfp_out( '\r' );
 	ata_mfp_out( *str++ );
     }
 }

 static inline void ata_scc_out (char c)
 {
     do {
 	MFPDELAY();
     } while (!(scc.cha_b_ctrl & 0x04)); /* wait for tx buf empty */
     MFPDELAY();
     scc.cha_b_data = c;
 }

 void atari_scc_console_write (struct console *co, const char *str,
 			      unsigned int count)
 {
     while (count--) {
 	if (*str == '\n')
 	    ata_scc_out( '\r' );
 	ata_scc_out( *str++ );
     }
 }

 static inline void ata_midi_out (char c)
 {
     while (!(acia.mid_ctrl & ACIA_TDRE)) /* wait for tx buf empty */
 	barrier ();
     acia.mid_data = c;
 }

 void atari_midi_console_write (struct console *co, const char *str,
 			       unsigned int count)
 {
     while (count--) {
 	if (*str == '\n')
 	    ata_midi_out( '\r' );
 	ata_midi_out( *str++ );
     }
 }

 static int ata_par_out (char c)
 {
     unsigned char tmp;
     /* This a some-seconds timeout in case no printer is connected */
     unsigned long i = loops_per_jiffy > 1 ? loops_per_jiffy : 10000000/HZ;

     while( (mfp.par_dt_reg & 1) && --i ) /* wait for BUSY == L */
 	;
     if (!i) return( 0 );

     sound_ym.rd_data_reg_sel = 15;  /* select port B */
     sound_ym.wd_data = c;           /* put char onto port */
     sound_ym.rd_data_reg_sel = 14;  /* select port A */
     tmp = sound_ym.rd_data_reg_sel;
     sound_ym.wd_data = tmp & ~0x20; /* set strobe L */
     MFPDELAY();                     /* wait a bit */
     sound_ym.wd_data = tmp | 0x20;  /* set strobe H */
     return( 1 );
 }

 static void atari_par_console_write (struct console *co, const char *str,
 				     unsigned int count)
 {
     static int printer_present = 1;

     if (!printer_present)
 	return;

     while (count--) {
 	if (*str == '\n')
 	    if (!ata_par_out( '\r' )) {
 		printer_present = 0;
 		return;
 	    }
 	if (!ata_par_out( *str++ )) {
 	    printer_present = 0;
 	    return;
 	}
     }
 }

 #ifdef CONFIG_SERIAL_CONSOLE
 int atari_mfp_console_wait_key(struct console *co)
 {
     while( !(mfp.rcv_stat & 0x80) ) /* wait for rx buf filled */
 	barrier();
     return( mfp.usart_dta );
 }

 int atari_scc_console_wait_key(struct console *co)
 {
     do {
 	MFPDELAY();
     } while( !(scc.cha_b_ctrl & 0x01) ); /* wait for rx buf filled */
     MFPDELAY();
     return( scc.cha_b_data );
 }

 int atari_midi_console_wait_key(struct console *co)
 {
     while( !(acia.mid_ctrl & ACIA_RDRF) ) /* wait for rx buf filled */
 	barrier();
     return( acia.mid_data );
 }
 #endif

 /* The following two functions do a quick'n'dirty initialization of the MFP or
  * SCC serial ports. They're used by the debugging interface, kgdb, and the
  * serial console code. */
 #ifndef CONFIG_SERIAL_CONSOLE
 static void __init atari_init_mfp_port( int cflag )
 #else
 void atari_init_mfp_port( int cflag )
 #endif
 {
     /* timer values for 1200...115200 bps; > 38400 select 110, 134, or 150
      * bps, resp., and work only correct if there's a RSVE or RSSPEED */
     static int baud_table[9] = { 16, 11, 8, 4, 2, 1, 175, 143, 128 };
     int baud = cflag & CBAUD;
     int parity = (cflag & PARENB) ? ((cflag & PARODD) ? 0x04 : 0x06) : 0;
     int csize = ((cflag & CSIZE) == CS7) ? 0x20 : 0x00;

     if (cflag & CBAUDEX)
 	baud += B38400;
     if (baud < B1200 || baud > B38400+2)
 	baud = B9600; /* use default 9600bps for non-implemented rates */
     baud -= B1200; /* baud_table[] starts at 1200bps */

     mfp.trn_stat &= ~0x01; /* disable TX */
     mfp.usart_ctr = parity | csize | 0x88; /* 1:16 clk mode, 1 stop bit */
     mfp.tim_ct_cd &= 0x70;  /* stop timer D */
     mfp.tim_dt_d = baud_table[baud];
     mfp.tim_ct_cd |= 0x01;  /* start timer D, 1:4 */
     mfp.trn_stat |= 0x01;  /* enable TX */

     atari_MFP_init_done = 1;
 }

 #define SCC_WRITE(reg,val)				\
     do {						\
 	scc.cha_b_ctrl = (reg);				\
 	MFPDELAY();					\
 	scc.cha_b_ctrl = (val);				\
 	MFPDELAY();					\
     } while(0)

 /* loops_per_jiffy isn't initialized yet, so we can't use udelay(). This does a
  * delay of ~ 60us. */
 #define LONG_DELAY()				\
     do {					\
 	int i;					\
 	for( i = 100; i > 0; --i )		\
 	    MFPDELAY();				\
     } while(0)

 #ifndef CONFIG_SERIAL_CONSOLE
 static void __init atari_init_scc_port( int cflag )
 #else
 void atari_init_scc_port( int cflag )
 #endif
 {
     extern int atari_SCC_reset_done;
     static int clksrc_table[9] =
 	/* reg 11: 0x50 = BRG, 0x00 = RTxC, 0x28 = TRxC */
 	{ 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x00, 0x00 };
     static int brgsrc_table[9] =
 	/* reg 14: 0 = RTxC, 2 = PCLK */
 	{ 2, 2, 2, 2, 2, 2, 0, 2, 2 };
     static int clkmode_table[9] =
 	/* reg 4: 0x40 = x16, 0x80 = x32, 0xc0 = x64 */
 	{ 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0xc0, 0x80 };
     static int div_table[9] =
 	/* reg12 (BRG low) */
 	{ 208, 138, 103, 50, 24, 11, 1, 0, 0 };

     int baud = cflag & CBAUD;
     int clksrc, clkmode, div, reg3, reg5;

     if (cflag & CBAUDEX)
 	baud += B38400;
     if (baud < B1200 || baud > B38400+2)
 	baud = B9600; /* use default 9600bps for non-implemented rates */
     baud -= B1200; /* tables starts at 1200bps */

     clksrc  = clksrc_table[baud];
     clkmode = clkmode_table[baud];
     div     = div_table[baud];
     if (ATARIHW_PRESENT(TT_MFP) && baud >= 6) {
 	/* special treatment for TT, where rates >= 38400 are done via TRxC */
 	clksrc = 0x28; /* TRxC */
 	clkmode = baud == 6 ? 0xc0 :
 		  baud == 7 ? 0x80 : /* really 76800bps */
 			      0x40;  /* really 153600bps */
 	div = 0;
     }

     reg3 = (cflag & CSIZE) == CS8 ? 0xc0 : 0x40;
     reg5 = (cflag & CSIZE) == CS8 ? 0x60 : 0x20 | 0x82 /* assert DTR/RTS */;

     (void)scc.cha_b_ctrl;	/* reset reg pointer */
     SCC_WRITE( 9, 0xc0 );	/* reset */
     LONG_DELAY();		/* extra delay after WR9 access */
     SCC_WRITE( 4, (cflag & PARENB) ? ((cflag & PARODD) ? 0x01 : 0x03) : 0 |
 		  0x04 /* 1 stopbit */ |
 		  clkmode );
     SCC_WRITE( 3, reg3 );
     SCC_WRITE( 5, reg5 );
     SCC_WRITE( 9, 0 );		/* no interrupts */
     LONG_DELAY();		/* extra delay after WR9 access */
     SCC_WRITE( 10, 0 );		/* NRZ mode */
     SCC_WRITE( 11, clksrc );	/* main clock source */
     SCC_WRITE( 12, div );	/* BRG value */
     SCC_WRITE( 13, 0 );		/* BRG high byte */
     SCC_WRITE( 14, brgsrc_table[baud] );
     SCC_WRITE( 14, brgsrc_table[baud] | (div ? 1 : 0) );
     SCC_WRITE( 3, reg3 | 1 );
     SCC_WRITE( 5, reg5 | 8 );

     atari_SCC_reset_done = 1;
     atari_SCC_init_done = 1;
 }

 #ifndef CONFIG_SERIAL_CONSOLE
 static void __init atari_init_midi_port( int cflag )
 #else
 void atari_init_midi_port( int cflag )
 #endif
 {
     int baud = cflag & CBAUD;
     int csize = ((cflag & CSIZE) == CS8) ? 0x10 : 0x00;
     /* warning 7N1 isn't possible! (instead 7O2 is used...) */
     int parity = (cflag & PARENB) ? ((cflag & PARODD) ? 0x0c : 0x08) : 0x04;
     int div;

     /* 4800 selects 7812.5, 115200 selects 500000, all other (incl. 9600 as
      * default) the standard MIDI speed 31250. */
     if (cflag & CBAUDEX)
 	baud += B38400;
     if (baud == B4800)
 	div = ACIA_DIV64; /* really 7812.5 bps */
     else if (baud == B38400+2 /* 115200 */)
 	div = ACIA_DIV1; /* really 500 kbps (does that work??) */
     else
 	div = ACIA_DIV16; /* 31250 bps, standard for MIDI */

     /* RTS low, ints disabled */
     acia.mid_ctrl = div | csize | parity |
 		    ((atari_switches & ATARI_SWITCH_MIDI) ?
 		     ACIA_RHTID : ACIA_RLTID);
 }

 void __init atari_debug_init(void)
 {
     if (!strcmp( m68k_debug_device, "ser" )) {
 	/* defaults to ser2 for a Falcon and ser1 otherwise */
 	strcpy( m68k_debug_device, MACH_IS_FALCON ? "ser2" : "ser1" );

     }

     if (!strcmp( m68k_debug_device, "ser1" )) {
 	/* ST-MFP Modem1 serial port */
 	atari_init_mfp_port( B9600|CS8 );
 	atari_console_driver.write = atari_mfp_console_write;
     }
     else if (!strcmp( m68k_debug_device, "ser2" )) {
 	/* SCC Modem2 serial port */
 	atari_init_scc_port( B9600|CS8 );
 	atari_console_driver.write = atari_scc_console_write;
     }
     else if (!strcmp( m68k_debug_device, "midi" )) {
 	/* MIDI port */
 	atari_init_midi_port( B9600|CS8 );
 	atari_console_driver.write = atari_midi_console_write;
     }
     else if (!strcmp( m68k_debug_device, "par" )) {
 	/* parallel printer */
 	atari_turnoff_irq( IRQ_MFP_BUSY ); /* avoid ints */
 	sound_ym.rd_data_reg_sel = 7;  /* select mixer control */
 	sound_ym.wd_data = 0xff;       /* sound off, ports are output */
 	sound_ym.rd_data_reg_sel = 15; /* select port B */
 	sound_ym.wd_data = 0;          /* no char */
 	sound_ym.rd_data_reg_sel = 14; /* select port A */
 	sound_ym.wd_data = sound_ym.rd_data_reg_sel | 0x20; /* strobe H */
 	atari_console_driver.write = atari_par_console_write;
     }
     if (atari_console_driver.write)
 	register_console(&atari_console_driver);
 }

 /*
  * Local variables:
  *  c-indent-level: 4
  *  tab-width: 8
  * End:
  */
	/*
	* linux/arch/m68k/atari/debug.c
	*
	* Atari debugging and serial console stuff
	*
	* Assembled of parts of former atari/config.c 97-12-18 by Roman Hodek
	*
	* This file is subject to the terms and conditions of the GNU General Public
	* License. See the file COPYING in the main directory of this archive
	* for more details.
	*/

	#include <linux/types.h>
	#include <linux/tty.h>
	#include <linux/console.h>
	#include <linux/init.h>
	#include <linux/delay.h>

	#include <asm/atarihw.h>
	#include <asm/atariints.h>

	extern char m68k_debug_device[];

	/* Flag that Modem1 port is already initialized and used */
	int atari_MFP_init_done;
	/* Flag that Modem1 port is already initialized and used */
	int atari_SCC_init_done;
	/* Can be set somewhere, if a SCC master reset has already be done and should
	* not be repeated; used by kgdb */
	int atari_SCC_reset_done;

	static struct console atari_console_driver = {
	.name = "debug",
	.flags = CON_PRINTBUFFER,
	.index = -1,
	};


	static inline void ata_mfp_out (char c)
	{
	while (!(mfp.trn_stat & 0x80)) /* wait for tx buf empty */
	barrier ();
	mfp.usart_dta = c;
	}

	void atari_mfp_console_write (struct console co, const char str,
	unsigned int count)
	{
	while (count--) {
	if (*str == '\n')
	ata_mfp_out( '\r' );
	ata_mfp_out( *str++ );
	}
	}

	static inline void ata_scc_out (char c)
	{
	do {
	MFPDELAY();
	} while (!(scc.cha_b_ctrl & 0x04)); /* wait for tx buf empty */
	MFPDELAY();
	scc.cha_b_data = c;
	}

	void atari_scc_console_write (struct console co, const char str,
	unsigned int count)
	{
	while (count--) {
	if (*str == '\n')
	ata_scc_out( '\r' );
	ata_scc_out( *str++ );
	}
	}

	static inline void ata_midi_out (char c)
	{
	while (!(acia.mid_ctrl & ACIA_TDRE)) /* wait for tx buf empty */
	barrier ();
	acia.mid_data = c;
	}

	void atari_midi_console_write (struct console co, const char str,
	unsigned int count)
	{
	while (count--) {
	if (*str == '\n')
	ata_midi_out( '\r' );
	ata_midi_out( *str++ );
	}
	}

	static int ata_par_out (char c)
	{
	unsigned char tmp;
	/* This a some-seconds timeout in case no printer is connected */
	unsigned long i = loops_per_jiffy > 1 ? loops_per_jiffy : 10000000/HZ;

	while( (mfp.par_dt_reg & 1) && --i ) /* wait for BUSY == L */
	;
	if (!i) return( 0 );

	sound_ym.rd_data_reg_sel = 15; /* select port B */
	sound_ym.wd_data = c; /* put char onto port */
	sound_ym.rd_data_reg_sel = 14; /* select port A */
	tmp = sound_ym.rd_data_reg_sel;
	sound_ym.wd_data = tmp & ~0x20; /* set strobe L */
	MFPDELAY(); /* wait a bit */
	sound_ym.wd_data = tmp \| 0x20; /* set strobe H */
	return( 1 );
	}

	static void atari_par_console_write (struct console co, const char str,
	unsigned int count)
	{
	static int printer_present = 1;

	if (!printer_present)
	return;

	while (count--) {
	if (*str == '\n')
	if (!ata_par_out( '\r' )) {
	printer_present = 0;
	return;
	}
	if (!ata_par_out( *str++ )) {
	printer_present = 0;
	return;
	}
	}
	}

	#ifdef CONFIG_SERIAL_CONSOLE
	int atari_mfp_console_wait_key(struct console *co)
	{
	while( !(mfp.rcv_stat & 0x80) ) /* wait for rx buf filled */
	barrier();
	return( mfp.usart_dta );
	}

	int atari_scc_console_wait_key(struct console *co)
	{
	do {
	MFPDELAY();
	} while( !(scc.cha_b_ctrl & 0x01) ); /* wait for rx buf filled */
	MFPDELAY();
	return( scc.cha_b_data );
	}

	int atari_midi_console_wait_key(struct console *co)
	{
	while( !(acia.mid_ctrl & ACIA_RDRF) ) /* wait for rx buf filled */
	barrier();
	return( acia.mid_data );
	}
	#endif

	/* The following two functions do a quick'n'dirty initialization of the MFP or
	* SCC serial ports. They're used by the debugging interface, kgdb, and the
	* serial console code. */
	#ifndef CONFIG_SERIAL_CONSOLE
	static void __init atari_init_mfp_port( int cflag )
	#else
	void atari_init_mfp_port( int cflag )
	#endif
	{
	/* timer values for 1200...115200 bps; > 38400 select 110, 134, or 150
	* bps, resp., and work only correct if there's a RSVE or RSSPEED */
	static int baud_table[9] = { 16, 11, 8, 4, 2, 1, 175, 143, 128 };
	int baud = cflag & CBAUD;
	int parity = (cflag & PARENB) ? ((cflag & PARODD) ? 0x04 : 0x06) : 0;
	int csize = ((cflag & CSIZE) == CS7) ? 0x20 : 0x00;

	if (cflag & CBAUDEX)
	baud += B38400;
	if (baud < B1200 \|\| baud > B38400+2)
	baud = B9600; /* use default 9600bps for non-implemented rates */
	baud -= B1200; /* baud_table[] starts at 1200bps */

	mfp.trn_stat &= ~0x01; /* disable TX */
	mfp.usart_ctr = parity \| csize \| 0x88; /* 1:16 clk mode, 1 stop bit */
	mfp.tim_ct_cd &= 0x70; /* stop timer D */
	mfp.tim_dt_d = baud_table[baud];
	mfp.tim_ct_cd \|= 0x01; /* start timer D, 1:4 */
	mfp.trn_stat \|= 0x01; /* enable TX */

	atari_MFP_init_done = 1;
	}

	#define SCC_WRITE(reg,val) \
	do { \
	scc.cha_b_ctrl = (reg); \
	MFPDELAY(); \
	scc.cha_b_ctrl = (val); \
	MFPDELAY(); \
	} while(0)

	/* loops_per_jiffy isn't initialized yet, so we can't use udelay(). This does a
	* delay of ~ 60us. */
	#define LONG_DELAY() \
	do { \
	int i; \
	for( i = 100; i > 0; --i ) \
	MFPDELAY(); \
	} while(0)

	#ifndef CONFIG_SERIAL_CONSOLE
	static void __init atari_init_scc_port( int cflag )
	#else
	void atari_init_scc_port( int cflag )
	#endif
	{
	extern int atari_SCC_reset_done;
	static int clksrc_table[9] =
	/* reg 11: 0x50 = BRG, 0x00 = RTxC, 0x28 = TRxC */
	{ 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x00, 0x00 };
	static int brgsrc_table[9] =
	/* reg 14: 0 = RTxC, 2 = PCLK */
	{ 2, 2, 2, 2, 2, 2, 0, 2, 2 };
	static int clkmode_table[9] =
	/* reg 4: 0x40 = x16, 0x80 = x32, 0xc0 = x64 */
	{ 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0xc0, 0x80 };
	static int div_table[9] =
	/* reg12 (BRG low) */
	{ 208, 138, 103, 50, 24, 11, 1, 0, 0 };

	int baud = cflag & CBAUD;
	int clksrc, clkmode, div, reg3, reg5;

	if (cflag & CBAUDEX)
	baud += B38400;
	if (baud < B1200 \|\| baud > B38400+2)
	baud = B9600; /* use default 9600bps for non-implemented rates */
	baud -= B1200; /* tables starts at 1200bps */

	clksrc = clksrc_table[baud];
	clkmode = clkmode_table[baud];
	div = div_table[baud];
	if (ATARIHW_PRESENT(TT_MFP) && baud >= 6) {
	/* special treatment for TT, where rates >= 38400 are done via TRxC */
	clksrc = 0x28; /* TRxC */
	clkmode = baud == 6 ? 0xc0 :
	baud == 7 ? 0x80 : /* really 76800bps */
	0x40; /* really 153600bps */
	div = 0;
	}

	reg3 = (cflag & CSIZE) == CS8 ? 0xc0 : 0x40;
	reg5 = (cflag & CSIZE) == CS8 ? 0x60 : 0x20 \| 0x82 /* assert DTR/RTS */;

	(void)scc.cha_b_ctrl; /* reset reg pointer */
	SCC_WRITE( 9, 0xc0 ); /* reset */
	LONG_DELAY(); /* extra delay after WR9 access */
	SCC_WRITE( 4, (cflag & PARENB) ? ((cflag & PARODD) ? 0x01 : 0x03) : 0 \|
	0x04 /* 1 stopbit */ \|
	clkmode );
	SCC_WRITE( 3, reg3 );
	SCC_WRITE( 5, reg5 );
	SCC_WRITE( 9, 0 ); /* no interrupts */
	LONG_DELAY(); /* extra delay after WR9 access */
	SCC_WRITE( 10, 0 ); /* NRZ mode */
	SCC_WRITE( 11, clksrc ); /* main clock source */
	SCC_WRITE( 12, div ); /* BRG value */
	SCC_WRITE( 13, 0 ); /* BRG high byte */
	SCC_WRITE( 14, brgsrc_table[baud] );
	SCC_WRITE( 14, brgsrc_table[baud] \| (div ? 1 : 0) );
	SCC_WRITE( 3, reg3 \| 1 );
	SCC_WRITE( 5, reg5 \| 8 );

	atari_SCC_reset_done = 1;
	atari_SCC_init_done = 1;
	}

	#ifndef CONFIG_SERIAL_CONSOLE
	static void __init atari_init_midi_port( int cflag )
	#else
	void atari_init_midi_port( int cflag )
	#endif
	{
	int baud = cflag & CBAUD;
	int csize = ((cflag & CSIZE) == CS8) ? 0x10 : 0x00;
	/* warning 7N1 isn't possible! (instead 7O2 is used...) */
	int parity = (cflag & PARENB) ? ((cflag & PARODD) ? 0x0c : 0x08) : 0x04;
	int div;

	/* 4800 selects 7812.5, 115200 selects 500000, all other (incl. 9600 as
	* default) the standard MIDI speed 31250. */
	if (cflag & CBAUDEX)
	baud += B38400;
	if (baud == B4800)
	div = ACIA_DIV64; /* really 7812.5 bps */
	else if (baud == B38400+2 /* 115200 */)
	div = ACIA_DIV1; /* really 500 kbps (does that work??) */
	else
	div = ACIA_DIV16; /* 31250 bps, standard for MIDI */

	/* RTS low, ints disabled */
	acia.mid_ctrl = div \| csize \| parity \|
	((atari_switches & ATARI_SWITCH_MIDI) ?
	ACIA_RHTID : ACIA_RLTID);
	}

	void __init atari_debug_init(void)
	{
	if (!strcmp( m68k_debug_device, "ser" )) {
	/* defaults to ser2 for a Falcon and ser1 otherwise */
	strcpy( m68k_debug_device, MACH_IS_FALCON ? "ser2" : "ser1" );

	}

	if (!strcmp( m68k_debug_device, "ser1" )) {
	/* ST-MFP Modem1 serial port */
	atari_init_mfp_port( B9600\|CS8 );
	atari_console_driver.write = atari_mfp_console_write;
	}
	else if (!strcmp( m68k_debug_device, "ser2" )) {
	/* SCC Modem2 serial port */
	atari_init_scc_port( B9600\|CS8 );
	atari_console_driver.write = atari_scc_console_write;
	}
	else if (!strcmp( m68k_debug_device, "midi" )) {
	/* MIDI port */
	atari_init_midi_port( B9600\|CS8 );
	atari_console_driver.write = atari_midi_console_write;
	}
	else if (!strcmp( m68k_debug_device, "par" )) {
	/* parallel printer */
	atari_turnoff_irq( IRQ_MFP_BUSY ); /* avoid ints */
	sound_ym.rd_data_reg_sel = 7; /* select mixer control */
	sound_ym.wd_data = 0xff; /* sound off, ports are output */
	sound_ym.rd_data_reg_sel = 15; /* select port B */
	sound_ym.wd_data = 0; /* no char */
	sound_ym.rd_data_reg_sel = 14; /* select port A */
	sound_ym.wd_data = sound_ym.rd_data_reg_sel \| 0x20; /* strobe H */
	atari_console_driver.write = atari_par_console_write;
	}
	if (atari_console_driver.write)
	register_console(&atari_console_driver);
	}

	/*
	* Local variables:
	* c-indent-level: 4
	* tab-width: 8
	* End:
	*/