/* $ Header: $ */
-#include <string.h>
-#include "kd.h"
+#include <pexpert/pexpert.h>
-#include <mach/i386/vm_param.h>
+extern void cpu_shutdown(void);
-#define at386_io_lock_state()
-#define at386_io_lock(op) (TRUE)
-#define at386_io_unlock()
-
-
-typedef unsigned short i386_ioport_t;
-
-/* read a byte */
-extern unsigned char inb(
- i386_ioport_t port);
-/* write a longword */
-extern void outb(
- i386_ioport_t port,
- unsigned char datum);
-
-extern __inline__ unsigned char inb(
- i386_ioport_t port)
-{
- unsigned char datum;
- __asm__ volatile("inb %1, %0" : "=a" (datum) : "d" (port));
- return(datum);
-}
-
-extern __inline__ void outb(
- i386_ioport_t port,
- unsigned char datum)
-{
- __asm__ volatile("outb %0, %1" : : "a" (datum), "d" (port));
-}
-
-/* Forward */
-
-extern void kd_sendcmd(unsigned char ch);
-extern void kdreboot(void);
-extern int kd_dogetc(int wait);
-extern void kd_handle_ack(void);
-extern void kd_resend(void);
-extern int do_modifier(
- int state,
- Scancode c,
- int up);
-extern int kdcheckmagic(
- Scancode sc,
- int * regs);
-extern int kdstate2idx(
- int state,
- int extended);
-extern void kdinit(void);
-extern void kd_belloff(void);
-extern void kd_bellon(void);
-extern void kd_senddata(unsigned char c);
-extern unsigned char kd_getdata(void);
-extern unsigned char kd_cmdreg_read(void);
-extern void set_kd_state(
- int newstate);
-extern unsigned char state2leds(
- int state);
-extern void kd_setleds1(
- unsigned char val);
-extern void kd_setleds2(void);
-extern void cnsetleds(
- unsigned char val);
-extern int kd_kbd_magic(
- int scancode);
-
-extern int cngetc(void);
-extern int cnmaygetc(void);
-extern void kdreboot(void);
-extern int kd_dogetc(int wait);
-
-/* reboot on CTL-ALT-DEL ? */
-extern int rebootflag;
-/* enter kernel debugger on CTR-ALT-d ? */
-int kbdkdbflag = 1;
-/* allow keyboard mouse ? */
-int kbdmouseflag = 0;
-
-/*
- * kd_state shows the state of the modifier keys (ctrl, caps lock,
- * etc.) It should normally be changed by calling set_kd_state(), so
- * that the keyboard status LEDs are updated correctly.
- */
-int kd_state = KS_NORMAL;
-int kb_mode = KB_ASCII; /* event/ascii */
-
-int kd_kbd_mouse = 0;
-int kd_kbd_magic_scale = 6;
-int kd_kbd_magic_button = 0;
-
-/*
- * Some keyboard commands work by sending a command, waiting for an
- * ack (handled by kdintr), then sending data, which generates a
- * second ack. If we are in the middle of such a sequence, kd_ack
- * shows what the ack is for.
- *
- * When a byte is sent to the keyboard, it is kept around in last_sent
- * in case it needs to be resent.
- *
- * The rest of the variables here hold the data required to complete
- * the sequence.
- *
- * XXX - the System V driver keeps a command queue, I guess in case we
- * want to start a command while another is in progress. Is this
- * something we should worry about?
- */
-enum why_ack {NOT_WAITING, SET_LEDS, DATA_ACK};
-enum why_ack kd_ack = NOT_WAITING;
-
-unsigned char last_sent = 0;
-
-unsigned char kd_nextled = 0;
+int cngetc(void);
+int cnmaygetc(void);
+void kdreboot(void);
/*
- * We don't provide any mutex protection for this flag because we know
- * that this module will have been initialized by the time multiple
- * threads are running.
+ * Common I/O ports.
*/
-int kd_initialized = FALSE; /* driver initialized? */
-int kd_extended = FALSE;
+#define K_RDWR 0x60 /* keyboard data & cmds (read/write) */
+#define K_STATUS 0x64 /* keybd status (read-only) */
+#define K_CMD 0x64 /* keybd ctlr command (write-only) */
/*
- * This array maps scancodes to Ascii characters (or character
- * sequences).
- * Each row corresponds to one key. There are NUMOUTPUT bytes per key
- * state. The states are ordered: Normal, SHIFT, CTRL, ALT,
- * SHIFT/ALT.
+ * Bit definitions for K_STATUS port.
*/
-unsigned char key_map[NUMKEYS][WIDTH_KMAP] = {
-{NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC},
-{K_ESC,NC,NC, K_ESC,NC,NC, K_ESC,NC,NC, K_ESC,NC,NC, K_ESC,NC,NC},
-{K_ONE,NC,NC, K_BANG,NC,NC, K_ONE,NC,NC, 0x1b,0x4e,0x31, 0x1b,0x4e,0x21},
-{K_TWO,NC,NC, K_ATSN,NC,NC, K_NUL,NC,NC, 0x1b,0x4e,0x32, 0x1b,0x4e,0x40},
-{K_THREE,NC,NC, K_POUND,NC,NC, K_THREE,NC,NC, 0x1b,0x4e,0x33, 0x1b,0x4e,0x23},
-{K_FOUR,NC,NC, K_DOLLAR,NC,NC, K_FOUR,NC,NC, 0x1b,0x4e,0x34, 0x1b,0x4e,0x24},
-{K_FIVE,NC,NC, K_PERC,NC,NC, K_FIVE,NC,NC, 0x1b,0x4e,0x35, 0x1b,0x4e,0x25},
-{K_SIX,NC,NC, K_CARET,NC,NC, K_RS,NC,NC, 0x1b,0x4e,0x36, 0x1b,0x4e,0x5e},
-{K_SEVEN,NC,NC, K_AMPER,NC,NC, K_SEVEN,NC,NC, 0x1b,0x4e,0x37, 0x1b,0x4e,0x26},
-{K_EIGHT,NC,NC, K_ASTER,NC,NC, K_EIGHT,NC,NC, 0x1b,0x4e,0x38, 0x1b,0x4e,0x2a},
-{K_NINE,NC,NC, K_LPAREN,NC,NC, K_NINE,NC,NC, 0x1b,0x4e,0x39,0x1b,0x4e,0x28},
-{K_ZERO,NC,NC, K_RPAREN,NC,NC, K_ZERO,NC,NC, 0x1b,0x4e,0x30,0x1b,0x4e,0x29},
-{K_MINUS,NC,NC, K_UNDSC,NC,NC, K_US,NC,NC, 0x1b,0x4e,0x2d, 0x1b,0x4e,0x5f},
-{K_EQL,NC,NC, K_PLUS,NC,NC, K_EQL,NC,NC, 0x1b,0x4e,0x3d, 0x1b,0x4e,0x2b},
-{K_BS,NC,NC, K_BS,NC,NC, K_BS,NC,NC, K_BS,NC,NC, K_BS,NC,NC},
-{K_HT,NC,NC, K_GS,NC,NC, K_HT,NC,NC, K_HT,NC,NC, K_GS,NC,NC},
-{K_q,NC,NC, K_Q,NC,NC, K_DC1,NC,NC, 0x1b,0x4e,0x71, 0x1b,0x4e,0x51},
-{K_w,NC,NC, K_W,NC,NC, K_ETB,NC,NC, 0x1b,0x4e,0x77, 0x1b,0x4e,0x57},
-{K_e,NC,NC, K_E,NC,NC, K_ENQ,NC,NC, 0x1b,0x4e,0x65, 0x1b,0x4e,0x45},
-{K_r,NC,NC, K_R,NC,NC, K_DC2,NC,NC, 0x1b,0x4e,0x72, 0x1b,0x4e,0x52},
-{K_t,NC,NC, K_T,NC,NC, K_DC4,NC,NC, 0x1b,0x4e,0x74, 0x1b,0x4e,0x54},
-{K_y,NC,NC, K_Y,NC,NC, K_EM,NC,NC, 0x1b,0x4e,0x79, 0x1b,0x4e,0x59},
-{K_u,NC,NC, K_U,NC,NC, K_NAK,NC,NC, 0x1b,0x4e,0x75, 0x1b,0x4e,0x55},
-{K_i,NC,NC, K_I,NC,NC, K_HT,NC,NC, 0x1b,0x4e,0x69, 0x1b,0x4e,0x49},
-{K_o,NC,NC, K_O,NC,NC, K_SI,NC,NC, 0x1b,0x4e,0x6f, 0x1b,0x4e,0x4f},
-{K_p,NC,NC, K_P,NC,NC, K_DLE,NC,NC, 0x1b,0x4e,0x70, 0x1b,0x4e,0x50},
-{K_LBRKT,NC,NC, K_LBRACE,NC,NC, K_ESC,NC,NC, 0x1b,0x4e,0x5b, 0x1b,0x4e,0x7b},
-{K_RBRKT,NC,NC, K_RBRACE,NC,NC, K_GS,NC,NC, 0x1b,0x4e,0x5d, 0x1b,0x4e,0x7d},
-{K_CR,NC,NC, K_CR,NC,NC, K_CR,NC,NC, K_CR,NC,NC, K_CR,NC,NC},
-{K_SCAN,K_CTLSC,NC, K_SCAN,K_CTLSC,NC, K_SCAN,K_CTLSC,NC, K_SCAN,K_CTLSC,NC,
- K_SCAN,K_CTLSC,NC},
-{K_a,NC,NC, K_A,NC,NC, K_SOH,NC,NC, 0x1b,0x4e,0x61, 0x1b,0x4e,0x41},
-{K_s,NC,NC, K_S,NC,NC, K_DC3,NC,NC, 0x1b,0x4e,0x73, 0x1b,0x4e,0x53},
-{K_d,NC,NC, K_D,NC,NC, K_EOT,NC,NC, 0x1b,0x4e,0x65, 0x1b,0x4e,0x45},
-{K_f,NC,NC, K_F,NC,NC, K_ACK,NC,NC, 0x1b,0x4e,0x66, 0x1b,0x4e,0x46},
-{K_g,NC,NC, K_G,NC,NC, K_BEL,NC,NC, 0x1b,0x4e,0x67, 0x1b,0x4e,0x47},
-{K_h,NC,NC, K_H,NC,NC, K_BS,NC,NC, 0x1b,0x4e,0x68, 0x1b,0x4e,0x48},
-{K_j,NC,NC, K_J,NC,NC, K_LF,NC,NC, 0x1b,0x4e,0x6a, 0x1b,0x4e,0x4a},
-{K_k,NC,NC, K_K,NC,NC, K_VT,NC,NC, 0x1b,0x4e,0x6b, 0x1b,0x4e,0x4b},
-{K_l,NC,NC, K_L,NC,NC, K_FF,NC,NC, 0x1b,0x4e,0x6c, 0x1b,0x4e,0x4c},
-{K_SEMI,NC,NC, K_COLON,NC,NC, K_SEMI,NC,NC, 0x1b,0x4e,0x3b, 0x1b,0x4e,0x3a},
-{K_SQUOTE,NC,NC,K_DQUOTE,NC,NC,K_SQUOTE,NC,NC,0x1b,0x4e,0x27,0x1b,0x4e,0x22},
-{K_GRAV,NC,NC, K_TILDE,NC,NC, K_RS,NC,NC, 0x1b,0x4e,0x60, 0x1b,0x4e,0x7e},
-{K_SCAN,K_LSHSC,NC, K_SCAN,K_LSHSC,NC, K_SCAN,K_LSHSC,NC, K_SCAN,K_LSHSC,NC,
- K_SCAN,K_LSHSC,NC},
-{K_BSLSH,NC,NC, K_PIPE,NC,NC, K_FS,NC,NC, 0x1b,0x4e,0x5c, 0x1b,0x4e,0x7c},
-{K_z,NC,NC, K_Z,NC,NC, K_SUB,NC,NC, 0x1b,0x4e,0x7a, 0x1b,0x4e,0x5a},
-{K_x,NC,NC, K_X,NC,NC, K_CAN,NC,NC, 0x1b,0x4e,0x78, 0x1b,0x4e,0x58},
-{K_c,NC,NC, K_C,NC,NC, K_ETX,NC,NC, 0x1b,0x4e,0x63, 0x1b,0x4e,0x43},
-{K_v,NC,NC, K_V,NC,NC, K_SYN,NC,NC, 0x1b,0x4e,0x76, 0x1b,0x4e,0x56},
-{K_b,NC,NC, K_B,NC,NC, K_STX,NC,NC, 0x1b,0x4e,0x62, 0x1b,0x4e,0x42},
-{K_n,NC,NC, K_N,NC,NC, K_SO,NC,NC, 0x1b,0x4e,0x6e, 0x1b,0x4e,0x4e},
-{K_m,NC,NC, K_M,NC,NC, K_CR,NC,NC, 0x1b,0x4e,0x6d, 0x1b,0x4e,0x4d},
-{K_COMMA,NC,NC, K_LTHN,NC,NC, K_COMMA,NC,NC, 0x1b,0x4e,0x2c, 0x1b,0x4e,0x3c},
-{K_PERIOD,NC,NC, K_GTHN,NC,NC, K_PERIOD,NC,NC,0x1b,0x4e,0x2e,0x1b,0x4e,0x3e},
-{K_SLASH,NC,NC, K_QUES,NC,NC, K_SLASH,NC,NC, 0x1b,0x4e,0x2f, 0x1b,0x4e,0x3f},
-{K_SCAN,K_RSHSC,NC, K_SCAN,K_RSHSC,NC, K_SCAN,K_RSHSC,NC, K_SCAN,K_RSHSC,NC,
- K_SCAN,K_RSHSC,NC},
-{K_ASTER,NC,NC, K_ASTER,NC,NC, K_ASTER,NC,NC, 0x1b,0x4e,0x2a,0x1b,0x4e,0x2a},
-{K_SCAN,K_ALTSC,NC, K_SCAN,K_ALTSC,NC, K_SCAN,K_ALTSC,NC, K_SCAN,K_ALTSC,NC,
- K_SCAN,K_ALTSC,NC},
-{K_SPACE,NC,NC, K_SPACE,NC,NC, K_NUL,NC,NC, K_SPACE,NC,NC, K_SPACE,NC,NC},
-{K_SCAN,K_CLCKSC,NC, K_SCAN,K_CLCKSC,NC, K_SCAN,K_CLCKSC,NC,
- K_SCAN,K_CLCKSC,NC, K_SCAN,K_CLCKSC,NC},
-{K_F1, K_F1S, K_F1, K_F1, K_F1S},
-{K_F2, K_F2S, K_F2, K_F2, K_F2S},
-{K_F3, K_F3S, K_F3, K_F3, K_F3S},
-{K_F4, K_F4S, K_F4, K_F4, K_F4S},
-{K_F5, K_F5S, K_F5, K_F5, K_F5S},
-{K_F6, K_F6S, K_F6, K_F6, K_F6S},
-{K_F7, K_F7S, K_F7, K_F7, K_F7S},
-{K_F8, K_F8S, K_F8, K_F8, K_F8S},
-{K_F9, K_F9S, K_F9, K_F9, K_F9S},
-{K_F10, K_F10S, K_F10, K_F10, K_F10S},
-{K_SCAN,K_NLCKSC,NC, K_SCAN,K_NLCKSC,NC, K_SCAN,K_NLCKSC,NC,
- K_SCAN,K_NLCKSC,NC, K_SCAN,K_NLCKSC,NC},
-{K_SCRL, K_NUL,NC,NC, K_SCRL, K_SCRL, K_NUL,NC,NC},
-{K_HOME, K_SEVEN,NC,NC, K_HOME, K_HOME, 0x1b,0x4e,0x37},
-{K_UA, K_EIGHT,NC,NC, K_UA, K_UA, 0x1b,0x4e,0x38},
-{K_PUP, K_NINE,NC,NC, K_PUP, K_PUP, 0x1b,0x4e,0x39},
-{0x1b,0x5b,0x53, K_MINUS,NC,NC, 0x1b,0x5b,0x53,0x1b,0x5b,0x53,0x1b,0x4e,0x2d},
-{K_LA, K_FOUR,NC,NC, K_LA, K_LA, 0x1b,0x4e,0x34},
-{0x1b,0x5b,0x47,K_FIVE,NC,NC,0x1b,0x5b,0x47, 0x1b,0x5b,0x47, 0x1b,0x4e,0x35},
-{K_RA, K_SIX,NC,NC, K_RA, K_RA, 0x1b,0x4e,0x36},
-{0x1b,0x5b,0x54,K_PLUS,NC,NC, 0x1b,0x5b,0x54, 0x1b,0x5b,0x54, 0x1b,0x4e,0x2b},
-{K_END, K_ONE,NC,NC, K_END, K_END, 0x1b,0x4e,0x31},
-{K_DA, K_TWO,NC,NC, K_DA, K_DA, 0x1b,0x4e,0x32},
-{K_PDN, K_THREE,NC,NC, K_PDN, K_PDN, 0x1b,0x4e,0x33},
-{K_INS, K_ZERO,NC,NC, K_INS, K_INS, 0x1b,0x4e,0x30},
-{K_DEL,NC,NC, K_PERIOD,NC,NC, K_DEL,NC,NC, K_DEL,NC,NC, 0x1b,0x4e,0x2e},
-{NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC},
-{NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC},
-{NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC,NC},
-{K_F11, K_F11S, K_F11, K_F11, K_F11S},
-{K_F12, K_F12S, K_F12, K_F12, K_F12S}
-};
+#define K_OBUF_FUL 0x01 /* output (from keybd) buffer full */
+#define K_IBUF_FUL 0x02 /* input (to keybd) buffer full */
+#define K_SYSFLAG 0x04 /* "System Flag" */
+#define K_CMD_DATA 0x08 /* 1 = input buf has cmd, 0 = data */
+#define K_KBD_INHBT 0x10 /* 0 if keyboard inhibited */
+#define K_XMT_TIMEOUT 0x20 /* Transmit time out */
+#define K_RCV_TIMEOUT 0x40 /* Receive time out */
-extern void cnputc(unsigned char ch);
-
-/*
- * Switch for poll vs. interrupt.
- */
-int kd_pollc = 0;
-
-int (*cgetc)(
- int wait) = kd_dogetc;
- /* get a char. from console */
-void (*cputc)(
- char ch) = cnputc;
- /* put a char. to console */
+/*
+ * Keyboard controller commands (sent to K_CMD port).
+ */
+#define K_CMD_READ 0x20 /* read controller command byte */
+#define K_CMD_WRITE 0x60 /* write controller command byte */
+#define K_CMD_TEST 0xab /* test interface */
+#define K_CMD_DUMP 0xac /* diagnostic dump */
+#define K_CMD_DISBLE 0xad /* disable keyboard */
+#define K_CMD_ENBLE 0xae /* enable keyboard */
+#define K_CMD_RDKBD 0xc4 /* read keyboard ID */
+#define K_CMD_ECHO 0xee /* used for diagnostic testing */
+#define K_CMD_RESET 0xfe /* issue a system reset */
/*
- * cngetc:
+ * cngetc / cnmaygetc
*
- * Get one character using polling, rather than interrupts. Used
- * by the kernel debugger. Note that Caps Lock is ignored.
- * Normally this routine is called with interrupts already
- * disabled, but there is code in place so that it will be more
- * likely to work even if interrupts are turned on.
+ * Get one character using polling, rather than interrupts.
+ * Used by the kernel debugger.
*/
int
cngetc(void)
{
- int ret;
+ char c;
- ret = (*cgetc)(TRUE);
-
- return ret;
+ if ( 0 == (*PE_poll_input)(0, &c) )
+ return ( c );
+ else
+ return ( 0 );
}
int
cnmaygetc(void)
{
- int ret;
-
- ret = (*cgetc)(FALSE);
-
- return ret;
-}
-
-int
-kd_dogetc(
- int wait)
-{
- unsigned char c;
- unsigned char scancode;
- unsigned int char_idx;
- int up;
-
- kdinit();
- kd_extended = FALSE;
-
- for ( ; ; ) {
- while (!(inb(K_STATUS) & K_OBUF_FUL))
- if (!wait)
- return (-1);
- up = FALSE;
- /*
- * We'd come here for mouse events in debugger, if
- * the mouse were on.
- */
- if ((inb(K_STATUS) & 0x20) == 0x20) {
- printf("M%xP", inb(K_RDWR));
- continue;
- }
- scancode = inb(K_RDWR);
- /*
- * Handle extend modifier and
- * ack/resend, otherwise we may never receive
- * a key.
- */
- if (scancode == K_EXTEND) {
- kd_extended = TRUE;
- continue;
- } else if (scancode == K_RESEND) {
-/* printf("kd_getc: resend"); */
- kd_resend();
- continue;
- } else if (scancode == K_ACKSC) {
-/* printf("kd_getc: handle_ack"); */
- kd_handle_ack();
- continue;
- }
- if (scancode & K_UP) {
- up = TRUE;
- scancode &= ~K_UP;
- }
- if (kd_kbd_mouse)
- kd_kbd_magic(scancode);
- if (scancode < NUMKEYS) {
- /* Lookup in map, then process. */
- char_idx = kdstate2idx(kd_state, kd_extended);
- c = key_map[scancode][char_idx];
- if (c == K_SCAN) {
- c = key_map[scancode][++char_idx];
- kd_state = do_modifier(kd_state, c, up);
-#ifdef notdef
- cnsetleds(state2leds(kd_state));
-#endif
- } else if (!up) {
- /* regular key-down */
- if (c == K_CR)
- c = K_LF;
-#ifdef notdef
- splx(o_pri);
-#endif
- return(c & 0177);
- }
- }
- }
-}
-
-
-int old_kb_mode;
-
-#if MACH_KDB
-#define poll_spl() db_splhigh() /* prevent race w/ kdintr() */
-#define poll_splx(s) db_splx(s)
-#else /* MACH_KDB */
-#define poll_spl() SPLKD()
-#define poll_splx(s) splx(s)
-#endif /* MACH_KDB */
-
-
-void
-cnpollc(
- int on)
-{
- int old_spl; /* spl we're called at... */
-
- if (cpu_number()) {
- return;
- }
- if (on) {
- old_spl = poll_spl();
-
- old_kb_mode = kb_mode;
- kb_mode = KB_ASCII;
- poll_splx(old_spl);
-
- kd_pollc++;
- } else {
- --kd_pollc;
-
- old_spl = poll_spl();
- kb_mode = old_kb_mode;
- poll_splx(old_spl);
-
-
- }
-}
-
-/*
- * kd_handle_ack:
- *
- * For pending commands, complete the command. For data bytes,
- * drop the ack on the floor.
- */
-
-void
-kd_handle_ack(void)
-{
- switch (kd_ack) {
- case SET_LEDS:
- kd_setleds2();
- kd_ack = DATA_ACK;
- break;
- case DATA_ACK:
- kd_ack = NOT_WAITING;
- break;
- case NOT_WAITING:
- printf("unexpected ACK from keyboard\n");
- break;
- default:
- panic("bogus kd_ack\n");
- break;
- }
-}
-
-/*
- * kd_resend:
- *
- * Resend a missed keyboard command or data byte.
- */
-
-void
-kd_resend(void)
-{
- if (kd_ack == NOT_WAITING)
- printf("unexpected RESEND from keyboard\n");
- else
- kd_senddata(last_sent);
-}
-
-
-/*
- * do_modifier:
- *
- * Change keyboard state according to which modifier key and
- * whether it went down or up.
- *
- * input: the current state, the key, and the key's direction.
- * The key can be any key, not just a modifier key.
- *
- * output: the new state
- */
-
-int
-do_modifier(
- int state,
- Scancode c,
- int up)
-{
- switch (c) {
- case (K_ALTSC):
- if (up)
- state &= ~KS_ALTED;
- else
- state |= KS_ALTED;
- kd_extended = FALSE;
- break;
-#ifndef ORC
- case (K_CLCKSC):
-#endif /* ORC */
- case (K_CTLSC):
- if (up)
- state &= ~KS_CTLED;
- else
- state |= KS_CTLED;
- kd_extended = FALSE;
- break;
-#ifdef ORC
- case (K_CLCKSC):
- if (!up)
- state ^= KS_CLKED;
- break;
-#endif /* ORC */
- case (K_NLCKSC):
- if (!up)
- state ^= KS_NLKED;
- break;
- case (K_LSHSC):
- case (K_RSHSC):
- if (up)
- state &= ~KS_SHIFTED;
- else
- state |= KS_SHIFTED;
- kd_extended = FALSE;
- break;
- }
-
- return(state);
-}
-
-
-/*
- * kdcheckmagic:
- *
- * Check for magic keystrokes for invoking the debugger or
- * rebooting or ...
- *
- * input: an unprocessed scancode
- *
- * output: TRUE if a magic key combination was recognized and
- * processed. FALSE otherwise.
- *
- * side effects:
- * various actions possible, depending on which keys are
- * pressed. If the debugger is called, steps are taken
- * to ensure that the system doesn't think the magic keys
- * are still held down.
- */
-
-int
-kdcheckmagic(
- Scancode scancode,
- int *regs)
-{
- static int magic_state = KS_NORMAL; /* like kd_state */
- int up = FALSE;
- extern int rebootflag;
-
- if (scancode == 0x46 && kbdmouseflag) /* scroll lock */
- {
- kd_kbd_mouse = !kd_kbd_mouse;
- kd_kbd_magic_button = 0;
- return(TRUE);
- }
- if (scancode & K_UP) {
- up = TRUE;
- scancode &= ~K_UP;
- }
- magic_state = do_modifier(magic_state, scancode, up);
-
- if ((magic_state&(KS_CTLED|KS_ALTED)) == (KS_CTLED|KS_ALTED)) {
- switch (scancode) {
-#if MACH_KDB
- case K_dSC: /* ctl-alt-d */
- if (!kbdkdbflag)
- return(FALSE);
-
- kdb_kintr(); /* invoke debugger */
-
- /* Returned from debugger, so reset kbd state. */
- (void)SPLKD();
- magic_state = KS_NORMAL;
- if (kb_mode == KB_ASCII)
- kd_state = KS_NORMAL;
- /* setting leds kills kbd */
-
- return(TRUE);
- break;
-#endif /* MACH_KDB */
- case K_DELSC: /* ctl-alt-del */
- /* if rebootflag is on, reboot the system */
- if (rebootflag)
- kdreboot();
- break;
- }
- }
- return(FALSE);
-}
-
-
-/*
- * kdstate2idx:
- *
- * Return the value for the 2nd index into key_map that
- * corresponds to the given state.
- */
-
-int
-kdstate2idx(
- int state, /* bit vector, not a state index */
- int extended)
-{
- int state_idx = NORM_STATE;
-
- if ((!extended) && state != KS_NORMAL) {
- if ((state&(KS_SHIFTED|KS_ALTED)) == (KS_SHIFTED|KS_ALTED))
- state_idx = SHIFT_ALT;
- else if (state&KS_SHIFTED)
- state_idx = SHIFT_STATE;
- else if (state&KS_ALTED)
- state_idx = ALT_STATE;
- else if (state&KS_CTLED)
- state_idx = CTRL_STATE;
- }
-
- return (CHARIDX(state_idx));
-}
-
-/*
- * kdinit:
- *
- * This code initializes the structures and sets up the port registers
- * for the console driver.
- *
- * Each bitmap-based graphics card is likely to require a unique
- * way to determine the card's presence. The driver runs through
- * each "special" card that it knows about and uses the first one
- * that it finds. If it doesn't find any, it assumes that an
- * EGA-like card is installed.
- *
- * input : None. Interrupts are assumed to be disabled
- * output : Driver is initialized
- *
- */
-
-void
-kdinit(void)
-{
- unsigned char k_comm; /* keyboard command byte */
- unsigned char kd_stat;
-
- if (kd_initialized)
- return;
- kd_initialized = TRUE;
-
- /* get rid of any garbage in output buffer */
- if (inb(K_STATUS) & K_OBUF_FUL)
- (void)inb(K_RDWR);
-
- cnsetleds(kd_state = KS_NORMAL);
-
- kd_sendcmd(KC_CMD_READ); /* ask for the ctlr command byte */
- k_comm = kd_getdata();
- k_comm &= ~K_CB_DISBLE; /* clear keyboard disable bit */
- k_comm |= K_CB_ENBLIRQ; /* enable interrupt */
- kd_sendcmd(KC_CMD_WRITE); /* write new ctlr command byte */
- kd_senddata(k_comm);
-
-/* set_kd_state(KS_NORMAL); does only HALF of set-leds sequence -
- leaves kbd dead */
-
- /* get rid of any garbage in output buffer */
- (void)inb(K_RDWR);
-}
-
-/*
- * kd_belloff:
- *
- * This routine shuts the bell off, by sending the appropriate code
- * to the speaker port.
- *
- * input : None
- * output : bell is turned off
- *
- */
-
-void
-kd_belloff(void)
-{
- unsigned char status;
+ char c;
- status = (inb(K_PORTB) & ~(K_SPKRDATA | K_ENABLETMR2));
- outb(K_PORTB, status);
+ if ( 0 == (*PE_poll_input)(0, &c) )
+ return ( c );
+ else
+ return ( 0 );
}
-
/*
- * kd_bellon:
+ * kd_sendcmd
*
- * This routine turns the bell on.
- *
- * input : None
- * output : bell is turned on
+ * This function sends a command byte to the keyboard command
+ * port, but first waits until the input/output data buffer is
+ * clear before sending the data.
*
*/
-void
-kd_bellon(void)
+static void
+kd_sendcmd(unsigned char ch)
{
- unsigned char status;
-
- /* program timer 2 */
- outb(K_TMRCTL, K_SELTMR2 | K_RDLDTWORD | K_TSQRWAVE | K_TBINARY);
- outb(K_TMR2, 1500 & 0xff); /* LSB */
- outb(K_TMR2, (int)1500 >> 8); /* MSB */
-
- /* start speaker - why must we turn on K_SPKRDATA? */
- status = (inb(K_PORTB)| K_ENABLETMR2 | K_SPKRDATA);
- outb(K_PORTB, status);
- return;
+ while (inb(K_STATUS) & K_IBUF_FUL);
+ outb(K_CMD, ch);
}
/*
- * kd_senddata:
+ * kdreboot
*
- * This function sends a byte to the keyboard RDWR port, but
- * first waits until the input/output data buffer is clear before
- * sending the data. Note that this byte can be either data or a
- * keyboard command.
- *
- */
-
-void
-kd_senddata(
- unsigned char ch)
-{
- while (inb(K_STATUS) & K_IBUF_FUL);
- outb(K_RDWR, ch);
- last_sent = ch;
-}
-
-/*
- * kd_sendcmd:
- *
- * This function sends a command byte to the keyboard command
- * port, but first waits until the input/output data buffer is
- * clear before sending the data.
- *
- */
-
-void
-kd_sendcmd(
- unsigned char ch)
-{
- while (inb(K_STATUS) & K_IBUF_FUL);
- outb(K_CMD, ch);
-}
-
-
-/*
- * kd_getdata:
- *
- * This function returns a data byte from the keyboard RDWR port,
- * after waiting until the port is flagged as having something to
- * read.
- */
-
-unsigned char
-kd_getdata(void)
-{
- while ((inb(K_STATUS) & K_OBUF_FUL) == 0);
- return(inb(K_RDWR));
-}
-
-unsigned char
-kd_cmdreg_read(void)
-{
- int ch=KC_CMD_READ;
-
- while (inb(K_STATUS) & (K_IBUF_FUL | K_OBUF_FUL));
- outb(K_CMD, ch);
-
- while ((inb(K_STATUS) & K_OBUF_FUL) == 0);
- return(inb(K_RDWR));
-}
-
-void
-kd_cmdreg_write(
- unsigned char val)
-{
- int ch=KC_CMD_WRITE;
-
- while (inb(K_STATUS) & K_IBUF_FUL);
- outb(K_CMD, ch);
-
- while (inb(K_STATUS) & K_IBUF_FUL);
- outb(K_RDWR, val);
-}
-
-int kd_mouse_write_no_ack = 0;
-
-int
-kd_mouse_write(
- unsigned char val)
-{
- int ch=0xd4; /* output byte to aux device (i.e. mouse) */
- int ret = 0;
-
- while (inb(K_STATUS) & K_IBUF_FUL);
- outb(K_CMD, ch);
-
- while (inb(K_STATUS) & K_IBUF_FUL);
- outb(K_RDWR, val);
-
- if (kd_mouse_write_no_ack) goto done;
-
- while ((inb(K_STATUS) & K_OBUF_FUL) == 0);
- if ((inb(K_STATUS) & 0x20) == 0x20) {
- switch (ret = inb(K_RDWR)) {
- case 0xfa:
- break;
- case 0xfe:
- case 0xfc:
- default:
- printf("kd_mouse_write: saw %x for %x\n",
- ret, val);
- }
- } else { /* abort */
- printf("kd_mouse_write: sync error ??? on %x\n", val);
- }
-
-done:
- return ret;
-}
-
-void
-kd_mouse_read(
- int no,
- char *buf)
-{
-
- while (no-- > 0) {
- while ((inb(K_STATUS) & K_OBUF_FUL) == 0);
- /*
- * We may have seen a mouse event.
- */
- if ((inb(K_STATUS) & 0x20) == 0x20) {
- *buf++ = (unsigned char)inb(K_RDWR);
- } else { /* abort */
- int junk = inb(K_RDWR);
- printf("kd_mouse_read: sync error, received: 0x%x\n",
- junk);
- break;
- }
- }
-}
-
-void
-kd_mouse_drain(void)
-{
- int i;
- while(inb(K_STATUS) & K_IBUF_FUL);
- while((i = inb(K_STATUS)) & K_OBUF_FUL)
- printf("kbd: S = %x D = %x\n", i, inb(K_RDWR));
-}
-
-/*
- * set_kd_state:
- *
- * Set kd_state and update the keyboard status LEDs.
+ * Send a command to the motherboard keyboard controller to
+ * issue a hardware reset.
*/
-void
-set_kd_state(
- int newstate)
-{
- kd_state = newstate;
- kd_setleds1(state2leds(newstate));
-}
-
-/*
- * state2leds:
- *
- * Return a byte containing LED settings for the keyboard, given
- * a state vector.
- */
-
-unsigned char
-state2leds(
- int state)
-{
- unsigned char result = 0;
-
- if (state & KS_NLKED)
- result |= K_LED_NUMLK;
- if (state & KS_CLKED)
- result |= K_LED_CAPSLK;
- return(result);
-}
-
-/*
- * kd_setleds[12]:
- *
- * Set the keyboard LEDs according to the given byte.
- */
-
-void
-kd_setleds1(
- unsigned char val)
-{
- if (kd_ack != NOT_WAITING) {
- printf("kd_setleds1: unexpected state (%d)\n", kd_ack);
- return;
- }
-
- kd_ack = SET_LEDS;
- kd_nextled = val;
- kd_senddata(K_CMD_LEDS);
-}
-
-void
-kd_setleds2(void)
-{
- kd_senddata(kd_nextled);
-}
-
-
-/*
- * cnsetleds:
- *
- * like kd_setleds[12], but not interrupt-based.
- * Currently disabled because cngetc ignores caps lock and num
- * lock anyway.
- */
-
-void
-cnsetleds(
- unsigned char val)
-{
- kd_senddata(K_CMD_LEDS);
- (void)kd_getdata(); /* XXX - assume is ACK */
- kd_senddata(val);
- (void)kd_getdata(); /* XXX - assume is ACK */
-}
-
void
kdreboot(void)
{
- kd_sendcmd(0xFE); /* XXX - magic # */
- /*
- * DRAT. We're still here. Let's try a "CPU shutdown", which consists
- * of clearing the IDTR and causing an exception. It's in locore.s
- */
- cpu_shutdown();
- /*NOTREACHED*/
-}
-
-int
-kd_kbd_magic(
- int scancode)
-{
-int new_button = 0;
-
- if (kd_kbd_mouse == 2)
- printf("sc = %x\n", scancode);
+ kd_sendcmd( K_CMD_RESET );
- switch (scancode) {
-/* f1 f2 f3 */
- case 0x3d:
- new_button++;
- case 0x3c:
- new_button++;
- case 0x3b:
- new_button++;
- if (kd_kbd_magic_button && (new_button != kd_kbd_magic_button)) {
- /* down w/o up */
- }
- /* normal */
- if (kd_kbd_magic_button == new_button) {
- kd_kbd_magic_button = 0;
- } else {
- kd_kbd_magic_button = new_button;
- }
- break;
- default:
- return 0;
- }
- return 1;
+ /*
+ * DRAT. We're still here. Let's try a "CPU shutdown", which consists
+ * of clearing the IDTR and causing an exception. It's in locore.s
+ */
+ cpu_shutdown();
+ /*NOTREACHED*/
}
projects / apple / xnu.git / blobdiff