6b3f4dc157
This commit separates the low-level keyboard driver from TTY, putting it in a separate driver (PCKBD). The commit also separates management of raw input devices from TTY, and puts it in a separate server (INPUT). All keyboard and mouse input from hardware is sent by drivers to the INPUT server, which either sends it to a process that has opened a raw input device, or otherwise forwards it to TTY for standard processing. Design by Dirk Vogt. Prototype by Uli Kastlunger. Additional changes made to the prototype: - the event communication is now based on USB HID codes; all input drivers have to use USB codes to describe events; - all TTY keymaps have been converted to USB format, with the effect that a single keymap covers all keys; there is no (static) escaped keymap anymore; - further keymap tweaks now allow remapping of literally all keys; - input device renumbering and protocol rewrite; - INPUT server rewrite, with added support for cancel and select; - PCKBD reimplementation, including PC/AT-to-USB translation; - support for manipulating keyboard LEDs has been added; - keyboard and mouse multiplexer devices have been added to INPUT, primarily so that an X server need only open two devices; - a new "libinputdriver" library abstracts away protocol details from input drivers, and should be used by all future input drivers; - both INPUT and PCKBD can be restarted; - TTY is now scheduled by KERNEL, so that it won't be punished for running a lot; without this, simply running "yes" on the console kills the system; - the KIOCBELL IOCTL has been moved to /dev/console; - support for the SCANCODES termios setting has been removed; - obsolete keymap compression has been removed; - the obsolete Olivetti M24 keymap has been removed. Change-Id: I3a672fb8c4fd566734e4b46d3994b4b7fc96d578
85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
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#ifndef _REGION_H
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#define _REGION_H 1
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#include <minix/callnr.h>
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#include <minix/com.h>
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#include <minix/config.h>
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#include <minix/const.h>
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#include <minix/ds.h>
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#include <minix/endpoint.h>
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#include <minix/minlib.h>
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#include <minix/type.h>
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#include <minix/ipc.h>
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#include <minix/sysutil.h>
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#include <minix/syslib.h>
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#include <minix/const.h>
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#include "phys_region.h"
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#include "memtype.h"
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#include "vm.h"
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#include "fdref.h"
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struct phys_block {
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#if SANITYCHECKS
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u32_t seencount;
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#endif
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phys_bytes phys; /* physical memory */
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/* first in list of phys_regions that reference this block */
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struct phys_region *firstregion;
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u8_t refcount; /* Refcount of these pages */
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u8_t flags;
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};
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#define PBF_INCACHE 0x01
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typedef struct vir_region {
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vir_bytes vaddr; /* virtual address, offset from pagetable */
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vir_bytes length; /* length in bytes */
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struct phys_region **physblocks;
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u16_t flags;
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struct vmproc *parent; /* Process that owns this vir_region. */
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mem_type_t *def_memtype; /* Default instantiated memory type. */
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int remaps;
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int id; /* unique id */
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union {
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phys_bytes phys; /* VR_DIRECT */
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struct {
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endpoint_t ep;
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vir_bytes vaddr;
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int id;
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} shared;
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struct phys_block *pb_cache;
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struct {
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int inited;
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struct fdref *fdref;
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u64_t offset;
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u16_t clearend;
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} file;
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} param;
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/* AVL fields */
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struct vir_region *lower, *higher;
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int factor;
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} region_t;
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/* Mapping flags: */
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#define VR_WRITABLE 0x001 /* Process may write here. */
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#define VR_PHYS64K 0x004 /* Physical memory must be 64k aligned. */
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#define VR_LOWER16MB 0x008
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#define VR_LOWER1MB 0x010
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#define VR_SHARED 0x040
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#define VR_UNINITIALIZED 0x080 /* Do not clear after allocation */
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/* Mapping type: */
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#define VR_ANON 0x100 /* Memory to be cleared and allocated */
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#define VR_DIRECT 0x200 /* Mapped, but not managed by VM */
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/* map_page_region flags */
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#define MF_PREALLOC 0x01
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#endif
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