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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm26/lib/kbd.c
downloadlinux-stericsson-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-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!
Diffstat (limited to 'arch/arm26/lib/kbd.c')
-rw-r--r--arch/arm26/lib/kbd.c279
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diff --git a/arch/arm26/lib/kbd.c b/arch/arm26/lib/kbd.c
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+#include <linux/config.h>
+#include <linux/kd.h>
+//#include <linux/kbd_ll.h>
+#include <linux/kbd_kern.h>
+
+/*
+ * Translation of escaped scancodes to keycodes.
+ * This is now user-settable.
+ * The keycodes 1-88,96-111,119 are fairly standard, and
+ * should probably not be changed - changing might confuse X.
+ * X also interprets scancode 0x5d (KEY_Begin).
+ *
+ * For 1-88 keycode equals scancode.
+ */
+
+#define E0_KPENTER 96
+#define E0_RCTRL 97
+#define E0_KPSLASH 98
+#define E0_PRSCR 99
+#define E0_RALT 100
+#define E0_BREAK 101 /* (control-pause) */
+#define E0_HOME 102
+#define E0_UP 103
+#define E0_PGUP 104
+#define E0_LEFT 105
+#define E0_RIGHT 106
+#define E0_END 107
+#define E0_DOWN 108
+#define E0_PGDN 109
+#define E0_INS 110
+#define E0_DEL 111
+
+/* for USB 106 keyboard */
+#define E0_YEN 124
+#define E0_BACKSLASH 89
+
+
+#define E1_PAUSE 119
+
+/*
+ * The keycodes below are randomly located in 89-95,112-118,120-127.
+ * They could be thrown away (and all occurrences below replaced by 0),
+ * but that would force many users to use the `setkeycodes' utility, where
+ * they needed not before. It does not matter that there are duplicates, as
+ * long as no duplication occurs for any single keyboard.
+ */
+#define SC_LIM 89
+
+#define FOCUS_PF1 85 /* actual code! */
+#define FOCUS_PF2 89
+#define FOCUS_PF3 90
+#define FOCUS_PF4 91
+#define FOCUS_PF5 92
+#define FOCUS_PF6 93
+#define FOCUS_PF7 94
+#define FOCUS_PF8 95
+#define FOCUS_PF9 120
+#define FOCUS_PF10 121
+#define FOCUS_PF11 122
+#define FOCUS_PF12 123
+
+#define JAP_86 124
+/* tfj@olivia.ping.dk:
+ * The four keys are located over the numeric keypad, and are
+ * labelled A1-A4. It's an rc930 keyboard, from
+ * Regnecentralen/RC International, Now ICL.
+ * Scancodes: 59, 5a, 5b, 5c.
+ */
+#define RGN1 124
+#define RGN2 125
+#define RGN3 126
+#define RGN4 127
+
+static unsigned char high_keys[128 - SC_LIM] = {
+ RGN1, RGN2, RGN3, RGN4, 0, 0, 0, /* 0x59-0x5f */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* 0x60-0x67 */
+ 0, 0, 0, 0, 0, FOCUS_PF11, 0, FOCUS_PF12, /* 0x68-0x6f */
+ 0, 0, 0, FOCUS_PF2, FOCUS_PF9, 0, 0, FOCUS_PF3, /* 0x70-0x77 */
+ FOCUS_PF4, FOCUS_PF5, FOCUS_PF6, FOCUS_PF7, /* 0x78-0x7b */
+ FOCUS_PF8, JAP_86, FOCUS_PF10, 0 /* 0x7c-0x7f */
+};
+
+/* BTC */
+#define E0_MACRO 112
+/* LK450 */
+#define E0_F13 113
+#define E0_F14 114
+#define E0_HELP 115
+#define E0_DO 116
+#define E0_F17 117
+#define E0_KPMINPLUS 118
+/*
+ * My OmniKey generates e0 4c for the "OMNI" key and the
+ * right alt key does nada. [kkoller@nyx10.cs.du.edu]
+ */
+#define E0_OK 124
+/*
+ * New microsoft keyboard is rumoured to have
+ * e0 5b (left window button), e0 5c (right window button),
+ * e0 5d (menu button). [or: LBANNER, RBANNER, RMENU]
+ * [or: Windows_L, Windows_R, TaskMan]
+ */
+#define E0_MSLW 125
+#define E0_MSRW 126
+#define E0_MSTM 127
+
+static unsigned char e0_keys[128] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, /* 0x00-0x07 */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* 0x08-0x0f */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* 0x10-0x17 */
+ 0, 0, 0, 0, E0_KPENTER, E0_RCTRL, 0, 0, /* 0x18-0x1f */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* 0x20-0x27 */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* 0x28-0x2f */
+ 0, 0, 0, 0, 0, E0_KPSLASH, 0, E0_PRSCR, /* 0x30-0x37 */
+ E0_RALT, 0, 0, 0, 0, E0_F13, E0_F14, E0_HELP, /* 0x38-0x3f */
+ E0_DO, E0_F17, 0, 0, 0, 0, E0_BREAK, E0_HOME, /* 0x40-0x47 */
+ E0_UP, E0_PGUP, 0, E0_LEFT, E0_OK, E0_RIGHT, E0_KPMINPLUS, E0_END, /* 0x48-0x4f */
+ E0_DOWN, E0_PGDN, E0_INS, E0_DEL, 0, 0, 0, 0, /* 0x50-0x57 */
+ 0, 0, 0, E0_MSLW, E0_MSRW, E0_MSTM, 0, 0, /* 0x58-0x5f */
+ 0, 0, 0, 0, 0, 0, 0, 0, /* 0x60-0x67 */
+ 0, 0, 0, 0, 0, 0, 0, E0_MACRO, /* 0x68-0x6f */
+ //0, 0, 0, 0, 0, 0, 0, 0, /* 0x70-0x77 */
+ 0, 0, 0, 0, 0, E0_BACKSLASH, 0, 0, /* 0x70-0x77 */
+ 0, 0, 0, E0_YEN, 0, 0, 0, 0 /* 0x78-0x7f */
+};
+
+static int gen_setkeycode(unsigned int scancode, unsigned int keycode)
+{
+ if (scancode < SC_LIM || scancode > 255 || keycode > 127)
+ return -EINVAL;
+ if (scancode < 128)
+ high_keys[scancode - SC_LIM] = keycode;
+ else
+ e0_keys[scancode - 128] = keycode;
+ return 0;
+}
+
+static int gen_getkeycode(unsigned int scancode)
+{
+ return
+ (scancode < SC_LIM || scancode > 255) ? -EINVAL :
+ (scancode <
+ 128) ? high_keys[scancode - SC_LIM] : e0_keys[scancode - 128];
+}
+
+static int
+gen_translate(unsigned char scancode, unsigned char *keycode, char raw_mode)
+{
+ static int prev_scancode;
+
+ /* special prefix scancodes.. */
+ if (scancode == 0xe0 || scancode == 0xe1) {
+ prev_scancode = scancode;
+ return 0;
+ }
+
+ /* 0xFF is sent by a few keyboards, ignore it. 0x00 is error */
+ if (scancode == 0x00 || scancode == 0xff) {
+ prev_scancode = 0;
+ return 0;
+ }
+
+ scancode &= 0x7f;
+
+ if (prev_scancode) {
+ /*
+ * usually it will be 0xe0, but a Pause key generates
+ * e1 1d 45 e1 9d c5 when pressed, and nothing when released
+ */
+ if (prev_scancode != 0xe0) {
+ if (prev_scancode == 0xe1 && scancode == 0x1d) {
+ prev_scancode = 0x100;
+ return 0;
+ }
+ else if (prev_scancode == 0x100
+ && scancode == 0x45) {
+ *keycode = E1_PAUSE;
+ prev_scancode = 0;
+ } else {
+#ifdef KBD_REPORT_UNKN
+ if (!raw_mode)
+ printk(KERN_INFO
+ "keyboard: unknown e1 escape sequence\n");
+#endif
+ prev_scancode = 0;
+ return 0;
+ }
+ } else {
+ prev_scancode = 0;
+ /*
+ * The keyboard maintains its own internal caps lock and
+ * num lock statuses. In caps lock mode E0 AA precedes make
+ * code and E0 2A follows break code. In num lock mode,
+ * E0 2A precedes make code and E0 AA follows break code.
+ * We do our own book-keeping, so we will just ignore these.
+ */
+ /*
+ * For my keyboard there is no caps lock mode, but there are
+ * both Shift-L and Shift-R modes. The former mode generates
+ * E0 2A / E0 AA pairs, the latter E0 B6 / E0 36 pairs.
+ * So, we should also ignore the latter. - aeb@cwi.nl
+ */
+ if (scancode == 0x2a || scancode == 0x36)
+ return 0;
+
+ if (e0_keys[scancode])
+ *keycode = e0_keys[scancode];
+ else {
+#ifdef KBD_REPORT_UNKN
+ if (!raw_mode)
+ printk(KERN_INFO
+ "keyboard: unknown scancode e0 %02x\n",
+ scancode);
+#endif
+ return 0;
+ }
+ }
+ } else if (scancode >= SC_LIM) {
+ /* This happens with the FOCUS 9000 keyboard
+ Its keys PF1..PF12 are reported to generate
+ 55 73 77 78 79 7a 7b 7c 74 7e 6d 6f
+ Moreover, unless repeated, they do not generate
+ key-down events, so we have to zero up_flag below */
+ /* Also, Japanese 86/106 keyboards are reported to
+ generate 0x73 and 0x7d for \ - and \ | respectively. */
+ /* Also, some Brazilian keyboard is reported to produce
+ 0x73 and 0x7e for \ ? and KP-dot, respectively. */
+
+ *keycode = high_keys[scancode - SC_LIM];
+
+ if (!*keycode) {
+ if (!raw_mode) {
+#ifdef KBD_REPORT_UNKN
+ printk(KERN_INFO
+ "keyboard: unrecognized scancode (%02x)"
+ " - ignored\n", scancode);
+#endif
+ }
+ return 0;
+ }
+ } else
+ *keycode = scancode;
+ return 1;
+}
+
+static char gen_unexpected_up(unsigned char keycode)
+{
+ /* unexpected, but this can happen: maybe this was a key release for a
+ FOCUS 9000 PF key; if we want to see it, we have to clear up_flag */
+ if (keycode >= SC_LIM || keycode == 85)
+ return 0;
+ else
+ return 0200;
+}
+
+/*
+ * These are the default mappings
+ */
+int (*k_setkeycode)(unsigned int, unsigned int) = gen_setkeycode;
+int (*k_getkeycode)(unsigned int) = gen_getkeycode;
+int (*k_translate)(unsigned char, unsigned char *, char) = gen_translate;
+char (*k_unexpected_up)(unsigned char) = gen_unexpected_up;
+void (*k_leds)(unsigned char);
+
+/* Simple translation table for the SysRq keys */
+
+#ifdef CONFIG_MAGIC_SYSRQ
+static unsigned char gen_sysrq_xlate[128] =
+ "\000\0331234567890-=\177\t" /* 0x00 - 0x0f */
+ "qwertyuiop[]\r\000as" /* 0x10 - 0x1f */
+ "dfghjkl;'`\000\\zxcv" /* 0x20 - 0x2f */
+ "bnm,./\000*\000 \000\201\202\203\204\205" /* 0x30 - 0x3f */
+ "\206\207\210\211\212\000\000789-456+1" /* 0x40 - 0x4f */
+ "230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */
+ "\r\000/"; /* 0x60 - 0x6f */
+
+unsigned char *k_sysrq_xlate = gen_sysrq_xlate;
+int k_sysrq_key = 0x54;
+#endif