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Diffstat (limited to 'c/src/lib/libbsp/i386/pc386/console/pc_keyb.c')
-rw-r--r--c/src/lib/libbsp/i386/pc386/console/pc_keyb.c627
1 files changed, 0 insertions, 627 deletions
diff --git a/c/src/lib/libbsp/i386/pc386/console/pc_keyb.c b/c/src/lib/libbsp/i386/pc386/console/pc_keyb.c
deleted file mode 100644
index b6f0eb216a..0000000000
--- a/c/src/lib/libbsp/i386/pc386/console/pc_keyb.c
+++ /dev/null
@@ -1,627 +0,0 @@
-/*
- * linux/drivers/char/pc_keyb.c
- *
- * Separation of the PC low-level part by Geert Uytterhoeven, May 1997
- * See keyboard.c for the whole history.
- *
- * Major cleanup by Martin Mares, May 1997
- *
- * Combined the keyboard and PS/2 mouse handling into one file,
- * because they share the same hardware.
- * Johan Myreen <jem@iki.fi> 1998-10-08.
- *
- * Code fixes to handle mouse ACKs properly.
- * C. Scott Ananian <cananian@alumni.princeton.edu> 1999-01-29.
- *
- * Ported to RTEMS by Rosimildo da Silva
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <errno.h>
-
-#include <bsp.h>
-#include <rtems/keyboard.h>
-#include "i386kbd.h"
-
-static unsigned char handle_kbd_event(void);
-static void kbd_write_command_w(int data);
-static void kbd_write_output_w(int data);
-
-/* Some configuration switches are present in the include file... */
-
-/* Simple translation table for the SysRq keys */
-
-#ifdef CONFIG_MAGIC_SYSRQ
-unsigned char pckbd_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 */
-#endif
-
-/* used only by send_data - set by keyboard_interrupt */
-static volatile unsigned char reply_expected = 0;
-static volatile unsigned char acknowledge = 0;
-static volatile unsigned char resend = 0;
-
-/*
- * 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
-
-#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, 0, 0, 0 /* 0x78-0x7f */
-};
-
-static void mdelay( unsigned long t )
-{
- Wait_X_ms( t );
-}
-
-int pckbd_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;
-}
-
-int pckbd_getkeycode(unsigned int scancode)
-{
- return
- (scancode < SC_LIM || scancode > 255) ? -EINVAL :
- (scancode < 128) ? high_keys[scancode - SC_LIM] :
- e0_keys[scancode - 128];
-}
-
-static int do_acknowledge(unsigned char scancode)
-{
- if (reply_expected) {
- /* Unfortunately, we must recognise these codes only if we know they
- * are known to be valid (i.e., after sending a command), because there
- * are some brain-damaged keyboards (yes, FOCUS 9000 again) which have
- * keys with such codes :(
- */
- if (scancode == KBD_REPLY_ACK) {
- acknowledge = 1;
- reply_expected = 0;
- return 0;
- } else if (scancode == KBD_REPLY_RESEND) {
- resend = 1;
- reply_expected = 0;
- return 0;
- }
- /* Should not happen... */
- printk( "keyboard reply expected - got %02x\n", scancode);
- }
- return 1;
-}
-
-int pckbd_translate(unsigned char scancode, unsigned char *keycode,
- char raw_mode)
-{
- static int prev_scancode = 0;
-
- /* 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("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( "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( "keyboard: unrecognized scancode (%02x)"
- " - ignored\n", scancode);
-#endif
- }
- return 0;
- }
- } else
- *keycode = scancode;
- return 1;
-}
-
-char pckbd_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;
-}
-
-static void kb_wait(void)
-{
- unsigned long timeout = KBC_TIMEOUT;
-
- do {
- /*
- * "handle_kbd_event()" will handle any incoming events
- * while we wait - keypresses or mouse movement.
- */
- unsigned char status = handle_kbd_event();
-
- if (! (status & KBD_STAT_IBF))
- return;
- mdelay(1);
- timeout--;
- } while (timeout);
-#ifdef KBD_REPORT_TIMEOUTS
- printk( "Keyboard timed out[1]\n");
-#endif
-}
-
-/*
- * This reads the keyboard status port, and does the
- * appropriate action.
- *
- * It requires that we hold the keyboard controller
- * spinlock.
- */
-static unsigned char handle_kbd_event(void)
-{
- unsigned char status = kbd_read_status();
- unsigned int work = 10000;
-
- while (status & KBD_STAT_OBF) {
- unsigned char scancode;
-
- scancode = kbd_read_input();
- if (status & KBD_STAT_MOUSE_OBF) {
-#if 0
- handle_mouse_event(scancode);
-#endif
- } else {
- if (do_acknowledge(scancode))
- handle_scancode(scancode, !(scancode & 0x80));
- mark_bh(KEYBOARD_BH);
- }
-
- status = kbd_read_status();
-
- if(!work--)
- {
- printk( "pc_keyb: controller jammed (0x%02X).\n", status);
- break;
- }
- return status;
- }
-
- /*
- * the commands to set the leds for some reason, returns 0x14, 0x16
- * and I am intepreting as an ACK, because the original code from
- * Linux was timeing out here...
- */
- acknowledge = 1;
- reply_expected = 0;
- resend = 0;
- return status;
-}
-
-void keyboard_interrupt(void *unused)
-{
- handle_kbd_event();
-}
-
-/*
- * send_data sends a character to the keyboard and waits
- * for an acknowledge, possibly retrying if asked to. Returns
- * the success status.
- *
- * Don't use 'jiffies', so that we don't depend on interrupts
- */
-static int send_data(unsigned char data)
-{
- int retries = 3;
-
- do {
- unsigned long timeout = KBD_TIMEOUT;
-
- acknowledge = 0; /* Set by interrupt routine on receipt of ACK. */
- resend = 0;
- reply_expected = 1;
- kbd_write_output_w(data);
- for (;;) {
- if (acknowledge)
- return 1;
- if (resend)
- break;
- mdelay(1);
- if (!--timeout) {
-#ifdef KBD_REPORT_TIMEOUTS
- printk("Keyboard timeout[2]\n");
-#endif
- return 0;
- }
- }
- } while (retries-- > 0);
-#ifdef KBD_REPORT_TIMEOUTS
- printk( "keyboard: Too many NACKs -- noisy kbd cable?\n");
-#endif
- return 0;
-}
-
-void pckbd_leds(unsigned char leds)
-{
- if (!send_data(KBD_CMD_SET_LEDS) || !send_data(leds))
- send_data(KBD_CMD_ENABLE); /* re-enable kbd if any errors */
-}
-
-/*
- * In case we run on a non-x86 hardware we need to initialize both the
- * keyboard controller and the keyboard. On a x86, the BIOS will
- * already have initialized them.
- *
- * Some x86 BIOSes do not correctly initialize the keyboard, so the
- * "kbd-reset" command line options can be given to force a reset.
- * [Ranger]
- */
-#ifdef __i386__
- int kbd_startup_reset = 0;
-#else
- int kbd_startup_reset = 1;
-#endif
-
-/* for "kbd-reset" cmdline param */
-void kbd_reset_setup(char *str, int *ints)
-{
- kbd_startup_reset = 1;
-}
-
-#define KBD_NO_DATA (-1) /* No data */
-#define KBD_BAD_DATA (-2) /* Parity or other error */
-
-static int kbd_read_data(void)
-{
- int retval = KBD_NO_DATA;
- unsigned char status;
-
- status = kbd_read_status();
- if (status & KBD_STAT_OBF) {
- unsigned char data = kbd_read_input();
-
- retval = data;
- if (status & (KBD_STAT_GTO | KBD_STAT_PERR))
- retval = KBD_BAD_DATA;
- }
- return retval;
-}
-
-static void kbd_clear_input(void)
-{
- int maxread = 100; /* Random number */
-
- do {
- if (kbd_read_data() == KBD_NO_DATA)
- break;
- } while (--maxread);
-}
-
-static int kbd_wait_for_input(void)
-{
- long timeout = KBD_INIT_TIMEOUT;
-
- do {
- int retval = kbd_read_data();
- if (retval >= 0)
- return retval;
- mdelay(1);
- } while (--timeout);
- return -1;
-}
-
-static void kbd_write_command_w(int data)
-{
- kb_wait();
- kbd_write_command(data);
-}
-
-static void kbd_write_output_w(int data)
-{
- kb_wait();
- kbd_write_output(data);
-}
-
-static char * initialize_kbd(void)
-{
- int status;
-
- /*
- * Test the keyboard interface.
- * This seems to be the only way to get it going.
- * If the test is successful a x55 is placed in the input buffer.
- */
- kbd_write_command_w(KBD_CCMD_SELF_TEST);
- if (kbd_wait_for_input() != 0x55)
- return "Keyboard failed self test";
-
- /*
- * Perform a keyboard interface test. This causes the controller
- * to test the keyboard clock and data lines. The results of the
- * test are placed in the input buffer.
- */
- kbd_write_command_w(KBD_CCMD_KBD_TEST);
- if (kbd_wait_for_input() != 0x00)
- return "Keyboard interface failed self test";
-
- /*
- * Enable the keyboard by allowing the keyboard clock to run.
- */
- kbd_write_command_w(KBD_CCMD_KBD_ENABLE);
-
- /*
- * Reset keyboard. If the read times out
- * then the assumption is that no keyboard is
- * plugged into the machine.
- * This defaults the keyboard to scan-code set 2.
- *
- * Set up to try again if the keyboard asks for RESEND.
- */
- do {
- kbd_write_output_w(KBD_CMD_RESET);
- status = kbd_wait_for_input();
- if (status == KBD_REPLY_ACK)
- break;
- if (status != KBD_REPLY_RESEND)
- return "Keyboard reset failed, no ACK";
- } while (1);
-
- if (kbd_wait_for_input() != KBD_REPLY_POR)
- return "Keyboard reset failed, no POR";
-
- /*
- * Set keyboard controller mode. During this, the keyboard should be
- * in the disabled state.
- *
- * Set up to try again if the keyboard asks for RESEND.
- */
- do {
- kbd_write_output_w(KBD_CMD_DISABLE);
- status = kbd_wait_for_input();
- if (status == KBD_REPLY_ACK)
- break;
- if (status != KBD_REPLY_RESEND)
- return "Disable keyboard: no ACK";
- } while (1);
-
- kbd_write_command_w(KBD_CCMD_WRITE_MODE);
- kbd_write_output_w(KBD_MODE_KBD_INT
- | KBD_MODE_SYS
- | KBD_MODE_DISABLE_MOUSE
- | KBD_MODE_KCC);
-
- /* ibm powerpc portables need this to use scan-code set 1 -- Cort */
- kbd_write_command_w(KBD_CCMD_READ_MODE);
- if (!(kbd_wait_for_input() & KBD_MODE_KCC)) {
- /*
- * If the controller does not support conversion,
- * Set the keyboard to scan-code set 1.
- */
- kbd_write_output_w(0xF0);
- kbd_wait_for_input();
- kbd_write_output_w(0x01);
- kbd_wait_for_input();
- }
-
- kbd_write_output_w(KBD_CMD_ENABLE);
- if (kbd_wait_for_input() != KBD_REPLY_ACK)
- return "Enable keyboard: no ACK";
- /*
- * Finally, set the typematic rate to maximum.
- */
- kbd_write_output_w(KBD_CMD_SET_RATE);
- if (kbd_wait_for_input() != KBD_REPLY_ACK)
- return "Set rate: no ACK";
- kbd_write_output_w(0x00);
- if (kbd_wait_for_input() != KBD_REPLY_ACK)
- return "Set rate: no ACK";
- return NULL;
-}
-
-void pckbd_init_hw(void)
-{
- /* kbd_request_region(); */
-
- /* Flush any pending input. */
- kbd_clear_input();
-
- if (kbd_startup_reset) {
- char *msg = initialize_kbd();
- if (msg)
- printk( "initialize_kbd: %s\n", msg);
- }
-
-#if defined CONFIG_PSMOUSE
- psaux_init();
-#endif
-
- /* Ok, finally allocate the IRQ, and off we go.. */
-#if 0
- kbd_request_irq( keyboard_interrupt );
-#endif
-
-}
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