Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-m68k/atarihw.h b/include/asm-m68k/atarihw.h
new file mode 100644
index 0000000..f28acd0
--- /dev/null
+++ b/include/asm-m68k/atarihw.h
@@ -0,0 +1,808 @@
+/*
+** linux/atarihw.h -- This header defines some macros and pointers for
+** the various Atari custom hardware registers.
+**
+** Copyright 1994 by Bjrn Brauel
+**
+** 5/1/94 Roman Hodek:
+** Added definitions for TT specific chips.
+**
+** 1996-09-13 lars brinkhoff <f93labr@dd.chalmers.se>:
+** Finally added definitions for the matrix/codec and the DSP56001 host
+** interface.
+**
+** 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.
+**
+*/
+
+#ifndef _LINUX_ATARIHW_H_
+#define _LINUX_ATARIHW_H_
+
+#include <linux/types.h>
+#include <asm/bootinfo.h>
+#include <asm/raw_io.h>
+
+extern u_long atari_mch_cookie;
+extern u_long atari_mch_type;
+extern u_long atari_switches;
+extern int atari_rtc_year_offset;
+extern int atari_dont_touch_floppy_select;
+
+/* convenience macros for testing machine type */
+#define MACH_IS_ST ((atari_mch_cookie >> 16) == ATARI_MCH_ST)
+#define MACH_IS_STE ((atari_mch_cookie >> 16) == ATARI_MCH_STE && \
+ (atari_mch_cookie & 0xffff) == 0)
+#define MACH_IS_MSTE ((atari_mch_cookie >> 16) == ATARI_MCH_STE && \
+ (atari_mch_cookie & 0xffff) == 0x10)
+#define MACH_IS_TT ((atari_mch_cookie >> 16) == ATARI_MCH_TT)
+#define MACH_IS_FALCON ((atari_mch_cookie >> 16) == ATARI_MCH_FALCON)
+#define MACH_IS_MEDUSA (atari_mch_type == ATARI_MACH_MEDUSA)
+#define MACH_IS_HADES (atari_mch_type == ATARI_MACH_HADES)
+#define MACH_IS_AB40 (atari_mch_type == ATARI_MACH_AB40)
+
+/* values for atari_switches */
+#define ATARI_SWITCH_IKBD 0x01
+#define ATARI_SWITCH_MIDI 0x02
+#define ATARI_SWITCH_SND6 0x04
+#define ATARI_SWITCH_SND7 0x08
+#define ATARI_SWITCH_OVSC_SHIFT 16
+#define ATARI_SWITCH_OVSC_IKBD (ATARI_SWITCH_IKBD << ATARI_SWITCH_OVSC_SHIFT)
+#define ATARI_SWITCH_OVSC_MIDI (ATARI_SWITCH_MIDI << ATARI_SWITCH_OVSC_SHIFT)
+#define ATARI_SWITCH_OVSC_SND6 (ATARI_SWITCH_SND6 << ATARI_SWITCH_OVSC_SHIFT)
+#define ATARI_SWITCH_OVSC_SND7 (ATARI_SWITCH_SND7 << ATARI_SWITCH_OVSC_SHIFT)
+#define ATARI_SWITCH_OVSC_MASK 0xffff0000
+
+/*
+ * Define several Hardware-Chips for indication so that for the ATARI we do
+ * no longer decide whether it is a Falcon or other machine . It's just
+ * important what hardware the machine uses
+ */
+
+/* ++roman 08/08/95: rewritten from ORing constants to a C bitfield */
+
+#define ATARIHW_DECLARE(name) unsigned name : 1
+#define ATARIHW_SET(name) (atari_hw_present.name = 1)
+#define ATARIHW_PRESENT(name) (atari_hw_present.name)
+
+struct atari_hw_present {
+ /* video hardware */
+ ATARIHW_DECLARE(STND_SHIFTER); /* ST-Shifter - no base low ! */
+ ATARIHW_DECLARE(EXTD_SHIFTER); /* STe-Shifter - 24 bit address */
+ ATARIHW_DECLARE(TT_SHIFTER); /* TT-Shifter */
+ ATARIHW_DECLARE(VIDEL_SHIFTER); /* Falcon-Shifter */
+ /* sound hardware */
+ ATARIHW_DECLARE(YM_2149); /* Yamaha YM 2149 */
+ ATARIHW_DECLARE(PCM_8BIT); /* PCM-Sound in STe-ATARI */
+ ATARIHW_DECLARE(CODEC); /* CODEC Sound (Falcon) */
+ /* disk storage interfaces */
+ ATARIHW_DECLARE(TT_SCSI); /* Directly mapped NCR5380 */
+ ATARIHW_DECLARE(ST_SCSI); /* NCR5380 via ST-DMA (Falcon) */
+ ATARIHW_DECLARE(ACSI); /* Standard ACSI like in STs */
+ ATARIHW_DECLARE(IDE); /* IDE Interface */
+ ATARIHW_DECLARE(FDCSPEED); /* 8/16 MHz switch for FDC */
+ /* other I/O hardware */
+ ATARIHW_DECLARE(ST_MFP); /* The ST-MFP (there should be no Atari
+ without it... but who knows?) */
+ ATARIHW_DECLARE(TT_MFP); /* 2nd MFP */
+ ATARIHW_DECLARE(SCC); /* Serial Communications Contr. */
+ ATARIHW_DECLARE(ST_ESCC); /* SCC Z83230 in an ST */
+ ATARIHW_DECLARE(ANALOG_JOY); /* Paddle Interface for STe
+ and Falcon */
+ ATARIHW_DECLARE(MICROWIRE); /* Microwire Interface */
+ /* DMA */
+ ATARIHW_DECLARE(STND_DMA); /* 24 Bit limited ST-DMA */
+ ATARIHW_DECLARE(EXTD_DMA); /* 32 Bit ST-DMA */
+ ATARIHW_DECLARE(SCSI_DMA); /* DMA for the NCR5380 */
+ ATARIHW_DECLARE(SCC_DMA); /* DMA for the SCC */
+ /* real time clocks */
+ ATARIHW_DECLARE(TT_CLK); /* TT compatible clock chip */
+ ATARIHW_DECLARE(MSTE_CLK); /* Mega ST(E) clock chip */
+ /* supporting hardware */
+ ATARIHW_DECLARE(SCU); /* System Control Unit */
+ ATARIHW_DECLARE(BLITTER); /* Blitter */
+ ATARIHW_DECLARE(VME); /* VME Bus */
+ ATARIHW_DECLARE(DSP56K); /* DSP56k processor in Falcon */
+};
+
+extern struct atari_hw_present atari_hw_present;
+
+
+/* Reading the MFP port register gives a machine independent delay, since the
+ * MFP always has a 8 MHz clock. This avoids problems with the varying length
+ * of nops on various machines. Somebody claimed that the tstb takes 600 ns.
+ */
+#define MFPDELAY() \
+ __asm__ __volatile__ ( "tstb %0" : : "m" (mfp.par_dt_reg) : "cc" );
+
+/* Do cache push/invalidate for DMA read/write. This function obeys the
+ * snooping on some machines (Medusa) and processors: The Medusa itself can
+ * snoop, but only the '040 can source data from its cache to DMA writes i.e.,
+ * reads from memory). Both '040 and '060 invalidate cache entries on snooped
+ * DMA reads (i.e., writes to memory).
+ */
+
+
+#define atari_readb raw_inb
+#define atari_writeb raw_outb
+
+#define atari_inb_p raw_inb
+#define atari_outb_p raw_outb
+
+
+
+#include <linux/mm.h>
+#include <asm/cacheflush.h>
+
+static inline void dma_cache_maintenance( unsigned long paddr,
+ unsigned long len,
+ int writeflag )
+
+{
+ if (writeflag) {
+ if (!MACH_IS_MEDUSA || CPU_IS_060)
+ cache_push( paddr, len );
+ }
+ else {
+ if (!MACH_IS_MEDUSA)
+ cache_clear( paddr, len );
+ }
+}
+
+
+/*
+** Shifter
+ */
+#define ST_LOW 0
+#define ST_MID 1
+#define ST_HIGH 2
+#define TT_LOW 7
+#define TT_MID 4
+#define TT_HIGH 6
+
+#define SHF_BAS (0xffff8200)
+struct SHIFTER
+ {
+ u_char pad1;
+ u_char bas_hi;
+ u_char pad2;
+ u_char bas_md;
+ u_char pad3;
+ u_char volatile vcounthi;
+ u_char pad4;
+ u_char volatile vcountmid;
+ u_char pad5;
+ u_char volatile vcountlow;
+ u_char volatile syncmode;
+ u_char pad6;
+ u_char pad7;
+ u_char bas_lo;
+ };
+# define shifter ((*(volatile struct SHIFTER *)SHF_BAS))
+
+#define SHF_FBAS (0xffff820e)
+struct SHIFTER_F030
+ {
+ u_short off_next;
+ u_short scn_width;
+ };
+# define shifter_f030 ((*(volatile struct SHIFTER_F030 *)SHF_FBAS))
+
+
+#define SHF_TBAS (0xffff8200)
+struct SHIFTER_TT {
+ u_char char_dummy0;
+ u_char bas_hi; /* video mem base addr, high and mid byte */
+ u_char char_dummy1;
+ u_char bas_md;
+ u_char char_dummy2;
+ u_char vcount_hi; /* pointer to currently displayed byte */
+ u_char char_dummy3;
+ u_char vcount_md;
+ u_char char_dummy4;
+ u_char vcount_lo;
+ u_short st_sync; /* ST compatible sync mode register, unused */
+ u_char char_dummy5;
+ u_char bas_lo; /* video mem addr, low byte */
+ u_char char_dummy6[2+3*16];
+ /* $ffff8240: */
+ u_short color_reg[16]; /* 16 color registers */
+ u_char st_shiftmode; /* ST compatible shift mode register, unused */
+ u_char char_dummy7;
+ u_short tt_shiftmode; /* TT shift mode register */
+
+
+};
+#define shifter_tt ((*(volatile struct SHIFTER_TT *)SHF_TBAS))
+
+/* values for shifter_tt->tt_shiftmode */
+#define TT_SHIFTER_STLOW 0x0000
+#define TT_SHIFTER_STMID 0x0100
+#define TT_SHIFTER_STHIGH 0x0200
+#define TT_SHIFTER_TTLOW 0x0700
+#define TT_SHIFTER_TTMID 0x0400
+#define TT_SHIFTER_TTHIGH 0x0600
+#define TT_SHIFTER_MODEMASK 0x0700
+#define TT_SHIFTER_NUMMODE 0x0008
+#define TT_SHIFTER_PALETTE_MASK 0x000f
+#define TT_SHIFTER_GRAYMODE 0x1000
+
+/* 256 TT palette registers */
+#define TT_PALETTE_BASE (0xffff8400)
+#define tt_palette ((volatile u_short *)TT_PALETTE_BASE)
+
+#define TT_PALETTE_RED_MASK 0x0f00
+#define TT_PALETTE_GREEN_MASK 0x00f0
+#define TT_PALETTE_BLUE_MASK 0x000f
+
+/*
+** Falcon030 VIDEL Video Controller
+** for description see File 'linux\tools\atari\hardware.txt
+ */
+#define f030_col ((u_long *) 0xffff9800)
+#define f030_xreg ((u_short*) 0xffff8282)
+#define f030_yreg ((u_short*) 0xffff82a2)
+#define f030_creg ((u_short*) 0xffff82c0)
+#define f030_sreg ((u_short*) 0xffff8260)
+#define f030_mreg ((u_short*) 0xffff820a)
+#define f030_linewidth ((u_short*) 0xffff820e)
+#define f030_hscroll ((u_char*) 0xffff8265)
+
+#define VIDEL_BAS (0xffff8260)
+struct VIDEL {
+ u_short st_shift;
+ u_short pad1;
+ u_char xoffset_s;
+ u_char xoffset;
+ u_short f_shift;
+ u_char pad2[0x1a];
+ u_short hht;
+ u_short hbb;
+ u_short hbe;
+ u_short hdb;
+ u_short hde;
+ u_short hss;
+ u_char pad3[0x14];
+ u_short vft;
+ u_short vbb;
+ u_short vbe;
+ u_short vdb;
+ u_short vde;
+ u_short vss;
+ u_char pad4[0x12];
+ u_short control;
+ u_short mode;
+};
+#define videl ((*(volatile struct VIDEL *)VIDEL_BAS))
+
+/*
+** DMA/WD1772 Disk Controller
+ */
+
+#define FWD_BAS (0xffff8604)
+struct DMA_WD
+ {
+ u_short fdc_acces_seccount;
+ u_short dma_mode_status;
+ u_char dma_vhi; /* Some extended ST-DMAs can handle 32 bit addresses */
+ u_char dma_hi;
+ u_char char_dummy2;
+ u_char dma_md;
+ u_char char_dummy3;
+ u_char dma_lo;
+ u_short fdc_speed;
+ };
+# define dma_wd ((*(volatile struct DMA_WD *)FWD_BAS))
+/* alias */
+#define st_dma dma_wd
+/* The two highest bytes of an extended DMA as a short; this is a must
+ * for the Medusa.
+ */
+#define st_dma_ext_dmahi (*((volatile unsigned short *)0xffff8608))
+
+/*
+** YM2149 Sound Chip
+** access in bytes
+ */
+
+#define YM_BAS (0xffff8800)
+struct SOUND_YM
+ {
+ u_char rd_data_reg_sel;
+ u_char char_dummy1;
+ u_char wd_data;
+ };
+#define sound_ym ((*(volatile struct SOUND_YM *)YM_BAS))
+
+/* TT SCSI DMA */
+
+#define TT_SCSI_DMA_BAS (0xffff8700)
+struct TT_DMA {
+ u_char char_dummy0;
+ u_char dma_addr_hi;
+ u_char char_dummy1;
+ u_char dma_addr_hmd;
+ u_char char_dummy2;
+ u_char dma_addr_lmd;
+ u_char char_dummy3;
+ u_char dma_addr_lo;
+ u_char char_dummy4;
+ u_char dma_cnt_hi;
+ u_char char_dummy5;
+ u_char dma_cnt_hmd;
+ u_char char_dummy6;
+ u_char dma_cnt_lmd;
+ u_char char_dummy7;
+ u_char dma_cnt_lo;
+ u_long dma_restdata;
+ u_short dma_ctrl;
+};
+#define tt_scsi_dma ((*(volatile struct TT_DMA *)TT_SCSI_DMA_BAS))
+
+/* TT SCSI Controller 5380 */
+
+#define TT_5380_BAS (0xffff8781)
+struct TT_5380 {
+ u_char scsi_data;
+ u_char char_dummy1;
+ u_char scsi_icr;
+ u_char char_dummy2;
+ u_char scsi_mode;
+ u_char char_dummy3;
+ u_char scsi_tcr;
+ u_char char_dummy4;
+ u_char scsi_idstat;
+ u_char char_dummy5;
+ u_char scsi_dmastat;
+ u_char char_dummy6;
+ u_char scsi_targrcv;
+ u_char char_dummy7;
+ u_char scsi_inircv;
+};
+#define tt_scsi ((*(volatile struct TT_5380 *)TT_5380_BAS))
+#define tt_scsi_regp ((volatile char *)TT_5380_BAS)
+
+
+/*
+** Falcon DMA Sound Subsystem
+ */
+
+#define MATRIX_BASE (0xffff8930)
+struct MATRIX
+{
+ u_short source;
+ u_short destination;
+ u_char external_frequency_divider;
+ u_char internal_frequency_divider;
+};
+#define falcon_matrix (*(volatile struct MATRIX *)MATRIX_BASE)
+
+#define CODEC_BASE (0xffff8936)
+struct CODEC
+{
+ u_char tracks;
+ u_char input_source;
+#define CODEC_SOURCE_ADC 1
+#define CODEC_SOURCE_MATRIX 2
+ u_char adc_source;
+#define ADC_SOURCE_RIGHT_PSG 1
+#define ADC_SOURCE_LEFT_PSG 2
+ u_char gain;
+#define CODEC_GAIN_RIGHT 0x0f
+#define CODEC_GAIN_LEFT 0xf0
+ u_char attenuation;
+#define CODEC_ATTENUATION_RIGHT 0x0f
+#define CODEC_ATTENUATION_LEFT 0xf0
+ u_char unused1;
+ u_char status;
+#define CODEC_OVERFLOW_RIGHT 1
+#define CODEC_OVERFLOW_LEFT 2
+ u_char unused2, unused3, unused4, unused5;
+ u_char gpio_directions;
+#define GPIO_IN 0
+#define GPIO_OUT 1
+ u_char unused6;
+ u_char gpio_data;
+};
+#define falcon_codec (*(volatile struct CODEC *)CODEC_BASE)
+
+/*
+** Falcon Blitter
+*/
+
+#define BLT_BAS (0xffff8a00)
+
+struct BLITTER
+ {
+ u_short halftone[16];
+ u_short src_x_inc;
+ u_short src_y_inc;
+ u_long src_address;
+ u_short endmask1;
+ u_short endmask2;
+ u_short endmask3;
+ u_short dst_x_inc;
+ u_short dst_y_inc;
+ u_long dst_address;
+ u_short wd_per_line;
+ u_short ln_per_bb;
+ u_short hlf_op_reg;
+ u_short log_op_reg;
+ u_short lin_nm_reg;
+ u_short skew_reg;
+ };
+# define blitter ((*(volatile struct BLITTER *)BLT_BAS))
+
+
+/*
+** SCC Z8530
+ */
+
+#define SCC_BAS (0xffff8c81)
+struct SCC
+ {
+ u_char cha_a_ctrl;
+ u_char char_dummy1;
+ u_char cha_a_data;
+ u_char char_dummy2;
+ u_char cha_b_ctrl;
+ u_char char_dummy3;
+ u_char cha_b_data;
+ };
+# define scc ((*(volatile struct SCC*)SCC_BAS))
+
+/* The ESCC (Z85230) in an Atari ST. The channels are reversed! */
+# define st_escc ((*(volatile struct SCC*)0xfffffa31))
+# define st_escc_dsr ((*(volatile char *)0xfffffa39))
+
+/* TT SCC DMA Controller (same chip as SCSI DMA) */
+
+#define TT_SCC_DMA_BAS (0xffff8c00)
+#define tt_scc_dma ((*(volatile struct TT_DMA *)TT_SCC_DMA_BAS))
+
+/*
+** VIDEL Palette Register
+ */
+
+#define FPL_BAS (0xffff9800)
+struct VIDEL_PALETTE
+ {
+ u_long reg[256];
+ };
+# define videl_palette ((*(volatile struct VIDEL_PALETTE*)FPL_BAS))
+
+
+/*
+** Falcon DSP Host Interface
+ */
+
+#define DSP56K_HOST_INTERFACE_BASE (0xffffa200)
+struct DSP56K_HOST_INTERFACE {
+ u_char icr;
+#define DSP56K_ICR_RREQ 0x01
+#define DSP56K_ICR_TREQ 0x02
+#define DSP56K_ICR_HF0 0x08
+#define DSP56K_ICR_HF1 0x10
+#define DSP56K_ICR_HM0 0x20
+#define DSP56K_ICR_HM1 0x40
+#define DSP56K_ICR_INIT 0x80
+
+ u_char cvr;
+#define DSP56K_CVR_HV_MASK 0x1f
+#define DSP56K_CVR_HC 0x80
+
+ u_char isr;
+#define DSP56K_ISR_RXDF 0x01
+#define DSP56K_ISR_TXDE 0x02
+#define DSP56K_ISR_TRDY 0x04
+#define DSP56K_ISR_HF2 0x08
+#define DSP56K_ISR_HF3 0x10
+#define DSP56K_ISR_DMA 0x40
+#define DSP56K_ISR_HREQ 0x80
+
+ u_char ivr;
+
+ union {
+ u_char b[4];
+ u_short w[2];
+ u_long l;
+ } data;
+};
+#define dsp56k_host_interface ((*(volatile struct DSP56K_HOST_INTERFACE *)DSP56K_HOST_INTERFACE_BASE))
+
+/*
+** MFP 68901
+ */
+
+#define MFP_BAS (0xfffffa01)
+struct MFP
+ {
+ u_char par_dt_reg;
+ u_char char_dummy1;
+ u_char active_edge;
+ u_char char_dummy2;
+ u_char data_dir;
+ u_char char_dummy3;
+ u_char int_en_a;
+ u_char char_dummy4;
+ u_char int_en_b;
+ u_char char_dummy5;
+ u_char int_pn_a;
+ u_char char_dummy6;
+ u_char int_pn_b;
+ u_char char_dummy7;
+ u_char int_sv_a;
+ u_char char_dummy8;
+ u_char int_sv_b;
+ u_char char_dummy9;
+ u_char int_mk_a;
+ u_char char_dummy10;
+ u_char int_mk_b;
+ u_char char_dummy11;
+ u_char vec_adr;
+ u_char char_dummy12;
+ u_char tim_ct_a;
+ u_char char_dummy13;
+ u_char tim_ct_b;
+ u_char char_dummy14;
+ u_char tim_ct_cd;
+ u_char char_dummy15;
+ u_char tim_dt_a;
+ u_char char_dummy16;
+ u_char tim_dt_b;
+ u_char char_dummy17;
+ u_char tim_dt_c;
+ u_char char_dummy18;
+ u_char tim_dt_d;
+ u_char char_dummy19;
+ u_char sync_char;
+ u_char char_dummy20;
+ u_char usart_ctr;
+ u_char char_dummy21;
+ u_char rcv_stat;
+ u_char char_dummy22;
+ u_char trn_stat;
+ u_char char_dummy23;
+ u_char usart_dta;
+ };
+# define mfp ((*(volatile struct MFP*)MFP_BAS))
+
+/* TT's second MFP */
+
+#define TT_MFP_BAS (0xfffffa81)
+# define tt_mfp ((*(volatile struct MFP*)TT_MFP_BAS))
+
+
+/* TT System Control Unit */
+
+#define TT_SCU_BAS (0xffff8e01)
+struct TT_SCU {
+ u_char sys_mask;
+ u_char char_dummy1;
+ u_char sys_stat;
+ u_char char_dummy2;
+ u_char softint;
+ u_char char_dummy3;
+ u_char vmeint;
+ u_char char_dummy4;
+ u_char gp_reg1;
+ u_char char_dummy5;
+ u_char gp_reg2;
+ u_char char_dummy6;
+ u_char vme_mask;
+ u_char char_dummy7;
+ u_char vme_stat;
+};
+#define tt_scu ((*(volatile struct TT_SCU *)TT_SCU_BAS))
+
+/* TT real time clock */
+
+#define TT_RTC_BAS (0xffff8961)
+struct TT_RTC {
+ u_char regsel;
+ u_char dummy;
+ u_char data;
+};
+#define tt_rtc ((*(volatile struct TT_RTC *)TT_RTC_BAS))
+
+
+/*
+** ACIA 6850
+ */
+/* constants for the ACIA registers */
+
+/* baudrate selection and reset (Baudrate = clock/factor) */
+#define ACIA_DIV1 0
+#define ACIA_DIV16 1
+#define ACIA_DIV64 2
+#define ACIA_RESET 3
+
+/* character format */
+#define ACIA_D7E2S (0<<2) /* 7 data, even parity, 2 stop */
+#define ACIA_D7O2S (1<<2) /* 7 data, odd parity, 2 stop */
+#define ACIA_D7E1S (2<<2) /* 7 data, even parity, 1 stop */
+#define ACIA_D7O1S (3<<2) /* 7 data, odd parity, 1 stop */
+#define ACIA_D8N2S (4<<2) /* 8 data, no parity, 2 stop */
+#define ACIA_D8N1S (5<<2) /* 8 data, no parity, 1 stop */
+#define ACIA_D8E1S (6<<2) /* 8 data, even parity, 1 stop */
+#define ACIA_D8O1S (7<<2) /* 8 data, odd parity, 1 stop */
+
+/* transmit control */
+#define ACIA_RLTID (0<<5) /* RTS low, TxINT disabled */
+#define ACIA_RLTIE (1<<5) /* RTS low, TxINT enabled */
+#define ACIA_RHTID (2<<5) /* RTS high, TxINT disabled */
+#define ACIA_RLTIDSB (3<<5) /* RTS low, TxINT disabled, send break */
+
+/* receive control */
+#define ACIA_RID (0<<7) /* RxINT disabled */
+#define ACIA_RIE (1<<7) /* RxINT enabled */
+
+/* status fields of the ACIA */
+#define ACIA_RDRF 1 /* Receive Data Register Full */
+#define ACIA_TDRE (1<<1) /* Transmit Data Register Empty */
+#define ACIA_DCD (1<<2) /* Data Carrier Detect */
+#define ACIA_CTS (1<<3) /* Clear To Send */
+#define ACIA_FE (1<<4) /* Framing Error */
+#define ACIA_OVRN (1<<5) /* Receiver Overrun */
+#define ACIA_PE (1<<6) /* Parity Error */
+#define ACIA_IRQ (1<<7) /* Interrupt Request */
+
+#define ACIA_BAS (0xfffffc00)
+struct ACIA
+ {
+ u_char key_ctrl;
+ u_char char_dummy1;
+ u_char key_data;
+ u_char char_dummy2;
+ u_char mid_ctrl;
+ u_char char_dummy3;
+ u_char mid_data;
+ };
+# define acia ((*(volatile struct ACIA*)ACIA_BAS))
+
+#define TT_DMASND_BAS (0xffff8900)
+struct TT_DMASND {
+ u_char int_ctrl; /* Falcon: Interrupt control */
+ u_char ctrl;
+ u_char pad2;
+ u_char bas_hi;
+ u_char pad3;
+ u_char bas_mid;
+ u_char pad4;
+ u_char bas_low;
+ u_char pad5;
+ u_char addr_hi;
+ u_char pad6;
+ u_char addr_mid;
+ u_char pad7;
+ u_char addr_low;
+ u_char pad8;
+ u_char end_hi;
+ u_char pad9;
+ u_char end_mid;
+ u_char pad10;
+ u_char end_low;
+ u_char pad11[12];
+ u_char track_select; /* Falcon */
+ u_char mode;
+ u_char pad12[14];
+ /* Falcon only: */
+ u_short cbar_src;
+ u_short cbar_dst;
+ u_char ext_div;
+ u_char int_div;
+ u_char rec_track_select;
+ u_char dac_src;
+ u_char adc_src;
+ u_char input_gain;
+ u_short output_atten;
+};
+# define tt_dmasnd ((*(volatile struct TT_DMASND *)TT_DMASND_BAS))
+
+#define DMASND_MFP_INT_REPLAY 0x01
+#define DMASND_MFP_INT_RECORD 0x02
+#define DMASND_TIMERA_INT_REPLAY 0x04
+#define DMASND_TIMERA_INT_RECORD 0x08
+
+#define DMASND_CTRL_OFF 0x00
+#define DMASND_CTRL_ON 0x01
+#define DMASND_CTRL_REPEAT 0x02
+#define DMASND_CTRL_RECORD_ON 0x10
+#define DMASND_CTRL_RECORD_OFF 0x00
+#define DMASND_CTRL_RECORD_REPEAT 0x20
+#define DMASND_CTRL_SELECT_REPLAY 0x00
+#define DMASND_CTRL_SELECT_RECORD 0x80
+#define DMASND_MODE_MONO 0x80
+#define DMASND_MODE_STEREO 0x00
+#define DMASND_MODE_8BIT 0x00
+#define DMASND_MODE_16BIT 0x40 /* Falcon only */
+#define DMASND_MODE_6KHZ 0x00 /* Falcon: mute */
+#define DMASND_MODE_12KHZ 0x01
+#define DMASND_MODE_25KHZ 0x02
+#define DMASND_MODE_50KHZ 0x03
+
+
+#define DMASNDSetBase(bufstart) \
+ do { \
+ tt_dmasnd.bas_hi = (unsigned char)(((bufstart) & 0xff0000) >> 16); \
+ tt_dmasnd.bas_mid = (unsigned char)(((bufstart) & 0x00ff00) >> 8); \
+ tt_dmasnd.bas_low = (unsigned char) ((bufstart) & 0x0000ff); \
+ } while( 0 )
+
+#define DMASNDGetAdr() ((tt_dmasnd.addr_hi << 16) + \
+ (tt_dmasnd.addr_mid << 8) + \
+ (tt_dmasnd.addr_low))
+
+#define DMASNDSetEnd(bufend) \
+ do { \
+ tt_dmasnd.end_hi = (unsigned char)(((bufend) & 0xff0000) >> 16); \
+ tt_dmasnd.end_mid = (unsigned char)(((bufend) & 0x00ff00) >> 8); \
+ tt_dmasnd.end_low = (unsigned char) ((bufend) & 0x0000ff); \
+ } while( 0 )
+
+
+#define TT_MICROWIRE_BAS (0xffff8922)
+struct TT_MICROWIRE {
+ u_short data;
+ u_short mask;
+};
+# define tt_microwire ((*(volatile struct TT_MICROWIRE *)TT_MICROWIRE_BAS))
+
+#define MW_LM1992_ADDR 0x0400
+
+#define MW_LM1992_VOLUME(dB) \
+ (0x0c0 | ((dB) < -80 ? 0 : (dB) > 0 ? 40 : (((dB) + 80) / 2)))
+#define MW_LM1992_BALLEFT(dB) \
+ (0x140 | ((dB) < -40 ? 0 : (dB) > 0 ? 20 : (((dB) + 40) / 2)))
+#define MW_LM1992_BALRIGHT(dB) \
+ (0x100 | ((dB) < -40 ? 0 : (dB) > 0 ? 20 : (((dB) + 40) / 2)))
+#define MW_LM1992_TREBLE(dB) \
+ (0x080 | ((dB) < -12 ? 0 : (dB) > 12 ? 12 : (((dB) / 2) + 6)))
+#define MW_LM1992_BASS(dB) \
+ (0x040 | ((dB) < -12 ? 0 : (dB) > 12 ? 12 : (((dB) / 2) + 6)))
+
+#define MW_LM1992_PSG_LOW 0x000
+#define MW_LM1992_PSG_HIGH 0x001
+#define MW_LM1992_PSG_OFF 0x002
+
+#define MSTE_RTC_BAS (0xfffffc21)
+
+struct MSTE_RTC {
+ u_char sec_ones;
+ u_char dummy1;
+ u_char sec_tens;
+ u_char dummy2;
+ u_char min_ones;
+ u_char dummy3;
+ u_char min_tens;
+ u_char dummy4;
+ u_char hr_ones;
+ u_char dummy5;
+ u_char hr_tens;
+ u_char dummy6;
+ u_char weekday;
+ u_char dummy7;
+ u_char day_ones;
+ u_char dummy8;
+ u_char day_tens;
+ u_char dummy9;
+ u_char mon_ones;
+ u_char dummy10;
+ u_char mon_tens;
+ u_char dummy11;
+ u_char year_ones;
+ u_char dummy12;
+ u_char year_tens;
+ u_char dummy13;
+ u_char mode;
+ u_char dummy14;
+ u_char test;
+ u_char dummy15;
+ u_char reset;
+};
+
+#define mste_rtc ((*(volatile struct MSTE_RTC *)MSTE_RTC_BAS))
+
+#endif /* linux/atarihw.h */
+