146 lines
4.2 KiB
C
146 lines
4.2 KiB
C
//---
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// gint:hardware - Platform information and hardware detection
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//
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// This components centralizes detected information about the runtime
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// hardware, including MPU version, peripheral modules, and how drivers
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// configured them.
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//
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// The most common use of this header is for the isSH3() and isSH4()
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// macros that let you run MPU-dependent jobs and are used like this:
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// if(isSH3()) do_sh3();
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// else do_sh4();
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//---
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#ifndef GINT_HARDWARE
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#define GINT_HARDWARE
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* For compatibility with ASM, include the following bits only in C code */
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#ifndef CPP_ASM
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#include <gint/defs/types.h>
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/* Most of the information here is going to be stored in (key, value) pairs for
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predetermined keys and 32-bits values that are often integers or a set of
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flags. The data will be filled by gint or its drivers. */
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#define HW_KEYS 16
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extern uint32_t gint[HW_KEYS];
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/* hw_detect(): Basic hardware detection
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This function probes the hardware and fills in the HWMPU, HWCPUVR and
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HWCPUPR fields. */
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void hw_detect(void);
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#endif /* CPP_ASM */
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/* MPU detection macros, with a faster version on fx-CG 50 and a generic
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dual-platform version for libraries.
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Warning: this macro is also used hardcoded in exch.s. */
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#if defined(FX9860G) || (!defined(FX9860G) && !defined(FXCG50))
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#define isSH3() (gint[HWMPU] & 1)
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#define isSH4() (!isSH3())
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#endif
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#if defined(FX9860G)
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#define isSlim() (gint[HWCALC] == HWCALC_FX9860G_SLIM)
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#else
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#define isSlim() 0
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#endif
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#ifdef FXCG50
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#define isSH3() 0
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#define isSH4() 1
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#endif
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/* This bit should be set in all data longwords except HWMPU, HWCPUVR, HWCPUPR
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and HWCALC which are guaranteed to always be loaded. If not set then the
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information must be treated as invalid. */
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#define HW_LOADED 0x80000000
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/*
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** Key list
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*/
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#define HWMPU 0 /* MPU type */
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#define HWCPUVR 1 /* CPU Version Register */
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#define HWCPUPR 2 /* CPU Product Register */
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#define HWCALC 3 /* Calculator model, hardcoded in kernel/inth.S */
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#define HWRAM 4 /* Amount of RAM */
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#define HWROM 5 /* Amount of ROM */
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#define HWURAM 6 /* Userspace RAM */
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#define HWETMU /* Deprecated: use timer_count() (ETMU always load) */
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#define HWKBD 8 /* Keyboard */
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#define HWKBDSF /* Deprecated: use keysc_scan_frequency() */
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#define HWDD /* Deprecated: use the T6K11/R61524 API */
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#define HWFS 11 /* Filesystem type */
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/*
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** MPU type
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*/
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/* Unknown MPUs are all assumed to be SH-4A-based */
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#define HWMPU_UNKNOWN 0
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/* Used on original fx-9860G, SH-3-based */
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#define HWMPU_SH7337 1
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/* Used on recent fx-9860G derivatives such as the fx-9750G II, and also on the
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fx-CG 10/20/50. SH-4A-based */
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#define HWMPU_SH7305 2
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/* Used on the fx-9860G II, SH-3-based */
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#define HWMPU_SH7355 3
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/* Closest documented match to the SH7305, not used in any known calculator.
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Detected and included for reference only */
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#define HWMPU_SH7724 4
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/*
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** Calculator type
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*/
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/* SH-3-based fx-9860G-family */
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#define HWCALC_FX9860G_SH3 1
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/* Other SH-4A-based fx-9860G-family */
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#define HWCALC_FX9860G_SH4 2
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/* Graph 35+E II, an SH-4A French extension of the fx-9860G family */
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#define HWCALC_G35PE2 3
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/* fx-CG 10/20, also known as the "Prizm" family */
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#define HWCALC_PRIZM 4
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/* fx-CG 50, a late extension to the Prizm family */
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#define HWCALC_FXCG50 5
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/* fx-CG 50 emulator, hardcoded in kernel/inth.S */
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#define HWCALC_FXCG_MANAGER 6
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/* fx-9860G Slim, SH-3-based fx-9860G with hardware differences */
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#define HWCALC_FX9860G_SLIM 7
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/*
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** Keyboard
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*/
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/* The keyboard uses an I/O-port-based scan method. This is possible on both
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SH3 and SH4, but gint will normally do it only on SH3. */
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#define HWKBD_IO 0x01
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/* When using the I/O-port scanning method on SH3, whether the watchdog is used
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to delay I/O operations. */
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#define HWKBD_WDD 0x02
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/* The keyboard uses a KEYSC-based scan method. This is only possible on SH4 */
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#define HWKBD_KSI 0x04
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/*
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** Filesystem type
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*/
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/* Unknown or no filesystem. */
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#define HWFS_NONE 0
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/* CASIO's in-house filesystem, now deprecated. */
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#define HWFS_CASIOWIN 1
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/* Wrapper around Kyoto Software Research's Fugue VFAT implementation. */
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#define HWFS_FUGUE 2
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#ifdef __cplusplus
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}
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#endif
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#endif /* GINT_HARDWARE */
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