25 static __u8 mac_asc_wave_tab[ 0x800 ];
30 static volatile __u8* mac_asc_regs = ( void* )0x50F14000;
37 static unsigned long mac_bell_phase; /* 0..2*Pi -> 0..0x800 (wavetable size) */
67 	 *	mac_asc_regs[ 0x800 ] & 0xF0 != 0  in mac_init_asc()
77 			mac_asc_regs = ( void* )0x50010000;  in mac_init_asc()
140 	for ( i = 0; i < 0x400; i++ )  in mac_init_asc()
143 		mac_asc_wave_tab[ i + 0x400 ] = 0xFF - i / 4;  in mac_init_asc()
178 	if ( freq < 20 || freq > 20000 || length == 0 )  in mac_mksound()
180 		mac_nosound( 0 );  in mac_mksound()
188 	for ( i = 0; i < 0x800; i++ )  in mac_mksound()
189 		mac_asc_regs[ i ] = 0;  in mac_mksound()
190 	for ( i = 0; i < 0x800; i++ )  in mac_mksound()
193 	for ( i = 0; i < 8; i++ )  in mac_mksound()
194 		*( __u32* )( ( __u32 )mac_asc_regs + ASC_CONTROL + 0x814 + 8 * i ) = cfreq;  in mac_mksound()
196 	mac_asc_regs[ 0x807 ] = 0;  in mac_mksound()
198 	mac_asc_regs[ 0x805 ] = 0;  in mac_mksound()
199 	mac_asc_regs[ 0x80F ] = 0;  in mac_mksound()
214 	mac_asc_regs[ ASC_ENABLE ] = 0;  in mac_nosound()
225 	if ( mac_bell_duration > 0 )  in mac_quadra_start_bell()
232 	mac_bell_phase = 0;  in mac_quadra_start_bell()
239 	mac_asc_regs[ 0x806 ] = volume;  in mac_quadra_start_bell()
242 	if ( mac_asc_regs[ 0x801 ] != 1 )  in mac_quadra_start_bell()
245 		mac_asc_regs[ 0x807 ] = 0;  in mac_quadra_start_bell()
247 		mac_asc_regs[ 0x802 ] = 0;  in mac_quadra_start_bell()
249 		mac_asc_regs[ 0x801 ] = 1;  in mac_quadra_start_bell()
250 		mac_asc_regs[ 0x803 ] |= 0x80;  in mac_quadra_start_bell()
251 		mac_asc_regs[ 0x803 ] &= 0x7F;  in mac_quadra_start_bell()
282 	if ( mac_bell_duration-- > 0 )  in mac_quadra_ring_bell()
284 		for ( i = 0; i < count; i++ )  in mac_quadra_ring_bell()
287 			mac_asc_regs[ 0 ] = mac_asc_wave_tab[ mac_bell_phase & ( sizeof( mac_asc_wave_tab ) - 1 ) ];  in mac_quadra_ring_bell()
293 		mac_asc_regs[ 0x801 ] = 0;  in mac_quadra_ring_bell()