drivers/char/dn_keyb.c

   1 #include <linux/sched.h>
   2 #include <linux/interrupt.h>
   3 #include <linux/errno.h>
   4 #include <linux/keyboard.h>
   5 #include <linux/delay.h>
   6 #include <linux/timer.h>
   7 #include <linux/kd.h>
   8 #include <linux/random.h>
   9 #include <linux/kernel.h>
  10 #include <linux/module.h>
  11 #include <linux/poll.h>
  12 #include <linux/miscdevice.h>
  13 #include <linux/init.h>
  14
  15 #include <asm/setup.h>
  16 #include <asm/irq.h>
  17 #include <asm/apollohw.h>
  18 #include <asm/uaccess.h>
  19
  20 #include "busmouse.h"
  21
  22 /* extern void handle_scancode(unsigned char,int ); */
  23
  24 #define DNKEY_CAPS 0x7e
  25 #define BREAK_FLAG 0x80
  26 #define DNKEY_REPEAT_DELAY 50
  27 #define DNKEY_CTRL 0x43
  28 #define DNKEY_LSHIFT 0x5e
  29 #define DNKEY_RSHIFT 0x6a
  30 #define DNKEY_REPT 0x5d
  31 #define DNKEY_REPEAT 0x7f
  32 #define DNKEY_LALT 0x75
  33 #define DNKEY_RALT 0x77
  34
  35 #define APOLLO_KEYB_CMD_ENTRIES 16
  36 #define APOLLO_KBD_MODE_KEYB   0x01
  37 #define APOLLO_KBD_MODE_MOUSE   0x02
  38 #define APOLLO_KBD_MODE_CHANGE 0xff
  39
  40 static u_char keyb_cmds[APOLLO_KEYB_CMD_ENTRIES];
  41 static short keyb_cmd_read=0, keyb_cmd_write=0;
  42 static int keyb_cmd_transmit=0;
  43 static int msedev;
  44
  45 static unsigned int kbd_mode=APOLLO_KBD_MODE_KEYB;
  46
  47 #if 0
  48 static void debug_keyb_timer_handler(unsigned long ignored);
  49 static u_char debug_buf1[4096],debug_buf2[4096],*debug_buf=&debug_buf1[0];
  50 static u_char *shadow_buf=&debug_buf2[0];
  51 static short debug_buf_count=0;
  52 static int debug_buf_overrun=0,debug_timer_running=0;
  53 static unsigned long debug_buffer_updated=0;
  54 static struct timer_list debug_keyb_timer = { NULL, NULL, 0, 0,
  55                                                                                           debug_keyb_timer_handler };
  56 #endif
  57
  58 static u_short dnplain_map[NR_KEYS] __initdata = {
  59 /*         ins     del     del     F1      F2      F3      F4
  60            mark    line    char                                 */
  61    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
  62 /* F5      F6      F7      F8      F9      F0      Again   Read */
  63    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
  64 /* Edit    Exit    Hold    Copy    Paste   Grow            ESC  */
  65    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf01b,
  66 /* 1       2       3       4       5       6       7       8    */
  67    0xf031, 0xf032, 0xf033, 0xf034, 0xf035, 0xf036, 0xf037, 0xf038,
  68 /* 9       0       -       =       `       Back            |<--
  69                                            Space                */
  70    0xf039, 0xf030, 0xf02d, 0xf03d, 0xf060, 0xf07f, 0xf200, 0xf200,
  71 /* Shell   -->|                    Tab     q       w       e
  72    Cmd                                                          */
  73    0xf200, 0xf200, 0xf200, 0xf200, 0xf009, 0xfb71, 0xfb77, 0xfb65,
  74 /* r       t       y       u       i       o       p       [    */
  75    0xfb72, 0xfb74, 0xfb79, 0xfb75, 0xfb69, 0xfb6f, 0xfb70, 0xf05b,
  76 /* ]               Del             7       8       9       +    */
  77    0xf05d, 0xf200, 0xf200, 0xf200, 0xf307, 0xf308, 0xf300, 0xf30a,
  78 /* [<--]   Up      [-->]   Ctrl                    a       s    */
  79    0xf200, 0xf600, 0xf200, 0xf702, 0xf200, 0xf200, 0xfb61, 0xfb73,
  80 /* d       f       g       h       j       k       l       ;    */
  81    0xfb64, 0xfb66, 0xfb67, 0xfb68, 0xfb6a, 0xfb6b, 0xfb6c, 0xf03b,
  82 /* '               Return  \               4       5       6    */
  83    0xf027, 0xf200, 0xf201, 0xf05c, 0xf200, 0xf304, 0xf305, 0xf306,
  84 /* -       <--     Next    -->             Rept    Shift
  85                    Window                                       */
  86    0xf30b, 0xf601, 0xf200, 0xf602, 0xf200, 0xf200, 0xf700, 0xf200,
  87 /* z       x       c       v       b       n       m       ,    */
  88    0xfb7a, 0xfb78, 0xfb63, 0xfb76, 0xfb62, 0xfb6e, 0xfb6d, 0xf02c,
  89 /* .       /       Shift           Pop             1       2    */
  90    0xf02e, 0xf02f, 0xf700, 0xf200, 0xf200, 0xf200, 0xf301, 0xf302,
  91 /* 3               PgUp    Down    PgDn    Alt     Space   Alt  */
  92    0xf303, 0xf200, 0xf118, 0xf603, 0xf119, 0xf703, 0xf020, 0xf701,
  93 /*         0               .       Enter                        */
  94    0xf200, 0xf300, 0xf200, 0xf310, 0xf30e, 0xf200, 0xf700, 0xf200,
  95 };
  96
  97 static u_short dnshift_map[NR_KEYS] __initdata = {
  98 /*         ins     del     del     F1      F2      F3      F4
  99            mark    line    char                                 */
 100    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 101 /* F5      F6      F7      F8      F9      F0      Again   Read */
 102    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 103 /* Save    Abort   Help    Cut     Undo    Grow            ESC  */
 104    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf01b,
 105 /* !       @       #       $       %       ^       &       *    */
 106    0xf021, 0xf040, 0xf023, 0xf024, 0xf025, 0xf05e, 0xf026, 0xf02a,
 107 /* (       )       _       +       ~       Back            |<--
 108                                            Space                */
 109    0xf028, 0xf029, 0xf05f, 0xf02b, 0xf07e, 0xf07f, 0xf200, 0xf200,
 110 /* Shell   -->|                    Tab     Q       W       E
 111    Cmd                                                          */
 112    0xf200, 0xf200, 0xf200, 0xf200, 0xf009, 0xfb51, 0xfb57, 0xfb45,
 113 /* R       T       Y       U       I       O       P       {    */
 114    0xfb52, 0xfb54, 0xfb59, 0xfb55, 0xfb49, 0xfb4f, 0xfb50, 0xf07b,
 115 /* }               Del             7       8       9       +    */
 116    0xf07d, 0xf200, 0xf200, 0xf200, 0xf307, 0xf308, 0xf300, 0xf30a,
 117 /* [<--]   Up      [-->]   Ctrl                    A       S    */
 118    0xf200, 0xf600, 0xf200, 0xf702, 0xf200, 0xf200, 0xfb41, 0xfb53,
 119 /* D       F       G       H       J       K       L       :    */
 120    0xfb44, 0xfb46, 0xfb47, 0xfb48, 0xfb4a, 0xfb4b, 0xfb4c, 0xf03a,
 121 /* "               Return  |               4       5       6    */
 122    0xf022, 0xf200, 0xf201, 0xf07c, 0xf200, 0xf304, 0xf305, 0xf306,
 123 /* -       <--     Next    -->             Rept    Shift
 124                    Window                                       */
 125    0xf30b, 0xf601, 0xf200, 0xf602, 0xf200, 0xf200, 0xf700, 0xf200,
 126 /* Z       X       C       V       B       N       M       <    */
 127    0xfb5a, 0xfb58, 0xfb43, 0xfb56, 0xfb42, 0xfb4e, 0xfb4d, 0xf03c,
 128 /* >       ?       Shift           Pop             1       2    */
 129    0xf03e, 0xf03f, 0xf700, 0xf200, 0xf200, 0xf200, 0xf301, 0xf302,
 130 /* 3               PgUp    Down    PgDn    Alt     Space   Alt  */
 131    0xf303, 0xf200, 0xf118, 0xf603, 0xf119, 0xf703, 0xf020, 0xf701,
 132 /*         0               .       Enter                        */
 133    0xf200, 0xf300, 0xf200, 0xf310, 0xf30e, 0xf200, 0xf708, 0xf200,
 134 };
 135
 136 static u_short dnctrl_map[NR_KEYS] __initdata = {
 137 /*         ins     del     del     F1      F2      F3      F4
 138            mark    line    char                                 */
 139    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 140 /* F5      F6      F7      F8      F9      F0      Again   Read */
 141    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 142 /* Save    Abort   Help    Cut     Undo    Grow            ESC  */
 143    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf01b,
 144 /* !       @       #       $       %       ^       &       *    */
 145    0xf200, 0xf000, 0xf01b, 0xf01c, 0xf01d, 0xf01e, 0xf01f, 0xf07f,
 146 /* (       )       _       +       ~       Back            |<--
 147                                            Space                */
 148    0xf200, 0xf200, 0xf01f, 0xf200, 0xf01c, 0xf200, 0xf200, 0xf200,
 149 /* Shell   -->|                    Tab     Q       W       E
 150    Cmd                                                          */
 151    0xf200, 0xf200, 0xf200, 0xf200, 0xf009, 0xf011, 0xf017, 0xf005,
 152 /* R       T       Y       U       I       O       P       {    */
 153    0xf012, 0xf014, 0xf019, 0xf015, 0xf009, 0xf00f, 0xf010, 0xf01b,
 154 /* }               Del             7       8       9       +    */
 155    0xf01d, 0xf200, 0xf200, 0xf200, 0xf307, 0xf308, 0xf300, 0xf30a,
 156 /* [<--]   Up      [-->]   Ctrl                    A       S    */
 157    0xf200, 0xf600, 0xf200, 0xf702, 0xf200, 0xf200, 0xfb01, 0xfb53,
 158 /* D       F       G       H       J       K       L       :    */
 159    0xf004, 0xf006, 0xf007, 0xf008, 0xf00a, 0xf00b, 0xf00c, 0xf200,
 160 /* "               Return  |               4       5       6    */
 161    0xf200, 0xf200, 0xf201, 0xf01c, 0xf200, 0xf304, 0xf305, 0xf306,
 162 /* -       <--     Next    -->             Rept    Shift
 163                    Window                                       */
 164    0xf30b, 0xf601, 0xf200, 0xf602, 0xf200, 0xf200, 0xf704, 0xf200,
 165 /* Z       X       C       V       B       N       M       <    */
 166    0xf01a, 0xf018, 0xf003, 0xf016, 0xf002, 0xf00e, 0xf01d, 0xf03c,
 167 /* >       ?       Shift           Pop             1       2    */
 168    0xf03e, 0xf03f, 0xf705, 0xf200, 0xf200, 0xf200, 0xf301, 0xf302,
 169 /* 3               PgUp    Down    PgDn    Alt     Space   Alt  */
 170    0xf303, 0xf200, 0xf118, 0xf603, 0xf119, 0xf703, 0xf020, 0xf701,
 171 /*         0               .       Enter                        */
 172    0xf200, 0xf300, 0xf200, 0xf310, 0xf30e, 0xf200, 0xf200, 0xf200,
 173 };
 174
 175 static u_short dnalt_map[NR_KEYS] __initdata = {
 176 /*         ins     del     del     F1      F2      F3      F4
 177            mark    line    char                                 */
 178    0xf200, 0xf200, 0xf200, 0xf200, 0xf500, 0xf501, 0xf502, 0xf503,
 179 /* F5      F6      F7      F8      F9      F0      Again   Read */
 180    0xf504, 0xf505, 0xf506, 0xf507, 0xf508, 0xf509, 0xf200, 0xf200,
 181 /* Edit    Exit    Hold    Copy    Paste   Grow            ESC  */
 182    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf01b,
 183 /* 1       2       3       4       5       6       7       8    */
 184    0xf831, 0xf832, 0xf833, 0xf834, 0xf835, 0xf836, 0xf837, 0xf838,
 185 /* 9       0       -       =       `       Back            |<--
 186                                            Space                */
 187    0xf839, 0xf830, 0xf82d, 0xf83d, 0xf860, 0xf87f, 0xf200, 0xf200,
 188 /* Shell   -->|                    Tab     q       w       e
 189    Cmd                                                          */
 190    0xf200, 0xf200, 0xf200, 0xf200, 0xf809, 0xf871, 0xf877, 0xf865,
 191 /* r       t       y       u       i       o       p       [    */
 192    0xf872, 0xf874, 0xf879, 0xf875, 0xf869, 0xf86f, 0xf870, 0xf85b,
 193 /* ]               Del             7       8       9       +    */
 194    0xf05d, 0xf200, 0xf200, 0xf200, 0xf307, 0xf308, 0xf300, 0xf30a,
 195 /* [<--]   Up      [-->]   Ctrl                    a       s    */
 196    0xf200, 0xf600, 0xf200, 0xf702, 0xf200, 0xf200, 0xf861, 0xf873,
 197 /* d       f       g       h       j       k       l       ;    */
 198    0xf864, 0xf866, 0xf867, 0xf868, 0xf86a, 0xf86b, 0xf86c, 0xf03b,
 199 /* '               Return  \               4       5       6    */
 200    0xf027, 0xf200, 0xf201, 0xf05c, 0xf200, 0xf304, 0xf305, 0xf306,
 201 /* -       <--     Next    -->             Rept    Shift
 202                    Window                                       */
 203    0xf30b, 0xf601, 0xf200, 0xf602, 0xf200, 0xf200, 0xf704, 0xf200,
 204 /* z       x       c       v       b       n       m       ,    */
 205    0xf87a, 0xf878, 0xf863, 0xf876, 0xf862, 0xf86e, 0xf86d, 0xf82c,
 206 /* .       /       Shift           Pop             1       2    */
 207    0xf82e, 0xf82f, 0xf705, 0xf200, 0xf200, 0xf200, 0xf301, 0xf302,
 208 /* 3               PgUp    Down    PgDn    Alt     Space   Alt  */
 209    0xf303, 0xf200, 0xf118, 0xf603, 0xf119, 0xf703, 0xf820, 0xf701,
 210 /*         0               .       Enter                        */
 211    0xf200, 0xf300, 0xf200, 0xf310, 0xf30e, 0xf200, 0xf200, 0xf200,
 212 };
 213
 214 static u_short dnaltgr_map[NR_KEYS] __initdata = {
 215    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 216    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 217    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 218    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 219    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 220    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 221    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 222    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 223    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 224    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 225    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 226    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 227    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 228    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 229    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 230    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200
 231 };
 232
 233 static u_short dnshift_ctrl_map[NR_KEYS] __initdata = {
 234    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 235    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 236    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 237    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 238    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 239    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 240    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 241    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 242    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 243    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 244    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 245    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 246    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 247    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 248    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 249    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200
 250 };
 251
 252 static u_short dnctrl_alt_map[NR_KEYS] __initdata = {
 253    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 254    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 255    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 256    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 257    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 258    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 259    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 260    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 261    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 262    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 263    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 264    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 265    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 266    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 267    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
 268    0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200
 269 };
 270
 271 #if 0
 272 static void debug_keyb_timer_handler(unsigned long ignored) {
 273
 274         unsigned long flags;
 275         u_char *swap;
 276         short length,i;
 277
 278         if (time_after(jiffies, debug_buffer_updated + 100)) {
 279                 save_flags(flags);
 280                 cli();
 281                 length=debug_buf_count;
 282                 swap=debug_buf;
 283                 debug_buf=shadow_buf;
 284                 shadow_buf=swap;
 285                 debug_buf_count=0;
 286                 debug_timer_running=0;
 287                 restore_flags(flags);
 288                 for(i=1;length;length--,i++)
 289                         printk("%02x%c",*(swap++), (i % 25) ? ' ' : '\n');
 290                 printk("\n");
 291         }
 292         else {
 293                 debug_keyb_timer.expires=jiffies+10;
 294                 add_timer(&debug_keyb_timer);
 295         }
 296 }
 297 #endif
 298
 299 static void dn_keyb_process_key_event(unsigned char scancode) {
 300
 301         static unsigned char lastscancode;
 302         unsigned char prev_scancode=lastscancode;
 303         static unsigned int lastkeypress;
 304
 305         lastscancode=scancode;
 306
 307         /*  printk("scan: %02x, lastscan: %02X, prev_scancode: %02X\n",scancode,lastscancode,prev_scancode); */
 308
 309         if(prev_scancode==APOLLO_KBD_MODE_CHANGE) {
 310                 kbd_mode=scancode;
 311 /*              printk("modechange: %d\n",scancode); */
 312         }
 313         else if((scancode & (~BREAK_FLAG)) == DNKEY_CAPS) {
 314         /* printk("handle_scancode: %02x\n",DNKEY_CAPS); */
 315                 handle_scancode(DNKEY_CAPS, 1);
 316                 /*    printk("handle_scancode: %02x\n",BREAK_FLAG | DNKEY_CAPS); */
 317                 handle_scancode(DNKEY_CAPS, 0);
 318         }
 319         else if( (scancode == DNKEY_REPEAT) && (prev_scancode < 0x7e) &&
 320                         !(prev_scancode==DNKEY_CTRL || prev_scancode==DNKEY_LSHIFT ||
 321                 prev_scancode==DNKEY_RSHIFT || prev_scancode==DNKEY_REPT ||
 322                 prev_scancode==DNKEY_LALT || prev_scancode==DNKEY_RALT)) {
 323                         if (time_after(jiffies, lastkeypress + DNKEY_REPEAT_DELAY)) {
 324                         /*      printk("handle_scancode: %02x\n",prev_scancode); */
 325                                 handle_scancode(prev_scancode, 1);
 326                                 }
 327                                 lastscancode=prev_scancode;
 328                         }
 329         else {
 330         /*      printk("handle_scancode: %02x\n",scancode);  */
 331                         handle_scancode(scancode & ~BREAK_FLAG, !(scancode & BREAK_FLAG));
 332                         lastkeypress=jiffies;
 333         }
 334 }
 335
 336 static void dn_keyb_process_mouse_event(unsigned char mouse_data) {
 337
 338         static short mouse_byte_count=0;
 339         static u_char mouse_packet[3];
 340         short mouse_buttons;
 341
 342         mouse_packet[mouse_byte_count++]=mouse_data;
 343
 344         if(mouse_byte_count==3) {
 345                 if(mouse_packet[0]==APOLLO_KBD_MODE_CHANGE) {
 346                         kbd_mode=mouse_packet[1];
 347                         mouse_byte_count=0;
 348 /*                      printk("modechange: %d\n",mouse_packet[1]); */
 349                         if(kbd_mode==APOLLO_KBD_MODE_KEYB)
 350                                 dn_keyb_process_key_event(mouse_packet[2]);
 351                 }
 352                 if((mouse_packet[0] & 0x8f) == 0x80) {
 353                         if(mouse_update_allowed) {
 354                                 mouse_ready=1;
 355                                 mouse_buttons=(mouse_packet[0] >> 4) & 0x7;
 356                                 mouse_dx+=mouse_packet[1] == 0xff ? 0 : (signed char)mouse_packet[1];
 357                                 mouse_dy+=mouse_packet[2] == 0xff ? 0 : (signed char)mouse_packet[2];
 358                                 wake_up_interruptible(&mouse_wait);
 359                                 if (mouse_dx < -2048)
 360                                         mouse_dx = -2048;
 361                                 else if (mouse_dx >  2048)
 362                                         mouse_dx =  2048;
 363                                 if (mouse_dy < -2048)
 364                                         mouse_dy = -2048;
 365                                 else if (mouse_dy >  2048)
 366                                         mouse_dy =  2048;
 367                                 kill_fasync(&mouse_fasyncptr, SIGIO, POLL_IN);
 368                         }
 369                         mouse_byte_count=0;
 370 /*                      printk("mouse: %d, %d, %x\n",mouse_x,mouse_y,buttons); */
 371                 }
 372         }
 373 }
 374
 375 static void dn_keyb_int(int irq, void *dummy, struct pt_regs *fp) {
 376
 377         unsigned char data;
 378         unsigned long flags;
 379         int scn2681_ints;
 380
 381         do {
 382                 scn2681_ints=sio01.isr_imr & 3;
 383                 if(scn2681_ints & 2) {
 384                         data=sio01.rhra_thra;
 385 #if 0
 386                         if(debug_buf_count<4096) {
 387                                 debug_buf[debug_buf_count++]=data;
 388                                 debug_buffer_updated=jiffies;
 389                                 if(!debug_timer_running) {
 390                                         debug_keyb_timer.expires=jiffies+10;
 391                                         add_timer(&debug_keyb_timer);
 392                                         debug_timer_running=1;
 393                                 }
 394                         }
 395                         else
 396                                 debug_buf_overrun=1;
 397 #endif
 398                         if(sio01.sra_csra & 0x10) {
 399                                 printk("whaa overrun !\n");
 400                                 continue;
 401                         }
 402
 403                         if(kbd_mode==APOLLO_KBD_MODE_KEYB)
 404                                 dn_keyb_process_key_event(data);
 405                         else
 406                                 dn_keyb_process_mouse_event(data);
 407                 }
 408
 409                 if(scn2681_ints & 1) {
 410                         save_flags(flags);
 411                         cli();
 412                         if(keyb_cmd_write!=keyb_cmd_read) {
 413                                 sio01.rhra_thra=keyb_cmds[keyb_cmd_read++];
 414                                 if(keyb_cmd_read==APOLLO_KEYB_CMD_ENTRIES)
 415                                         keyb_cmd_read=0;
 416                                 keyb_cmd_transmit=1;
 417                         }
 418                         else {
 419                                 keyb_cmd_transmit=0;
 420                                 sio01.BRGtest_cra=9;
 421                         }
 422                         restore_flags(flags);
 423                 }
 424         } while(scn2681_ints) ;
 425 }
 426
 427 void write_keyb_cmd(u_short length, u_char *cmd) {
 428
 429         unsigned long flags;
 430
 431         if((keyb_cmd_write==keyb_cmd_read) && keyb_cmd_transmit)
 432                 return;
 433
 434         save_flags(flags);
 435         cli();
 436         for(;length;length--) {
 437                 keyb_cmds[keyb_cmd_write++]=*(cmd++);
 438                 if(keyb_cmd_write==keyb_cmd_read)
 439                         return;
 440                 if(keyb_cmd_write==APOLLO_KEYB_CMD_ENTRIES)
 441                         keyb_cmd_write=0;
 442         }
 443         if(!keyb_cmd_transmit)  {
 444            sio01.BRGtest_cra=5;
 445         }
 446         restore_flags(flags);
 447
 448 }
 449
 450 static struct busmouse apollo_mouse = {
 451         APOLLO_MOUSE_MINOR, "apollomouse", THIS_MODULE, NULL, NULL, 7
 452 };
 453
 454 int __init dn_keyb_init(void){
 455
 456 /*  printk("dn_keyb_init\n"); */
 457
 458   memcpy(key_maps[0], dnplain_map, sizeof(plain_map));
 459   memcpy(key_maps[1], dnshift_map, sizeof(plain_map));
 460   memcpy(key_maps[2], dnaltgr_map, sizeof(plain_map));
 461   memcpy(key_maps[4], dnctrl_map, sizeof(plain_map));
 462   memcpy(key_maps[5], dnshift_ctrl_map, sizeof(plain_map));
 463   memcpy(key_maps[8], dnalt_map, sizeof(plain_map));
 464   memcpy(key_maps[12], dnctrl_alt_map, sizeof(plain_map));
 465
 466
 467   msedev=register_busmouse(&apollo_mouse);
 468   if (msedev < 0)
 469       printk(KERN_WARNING "Unable to install Apollo mouse driver.\n");
 470    else
 471       printk(KERN_INFO "Apollo mouse installed.\n");
 472
 473   /* program UpDownMode */
 474
 475   while(!(sio01.sra_csra & 0x4));
 476   sio01.rhra_thra=0xff;
 477
 478   while(!(sio01.sra_csra & 0x4));
 479   sio01.rhra_thra=0x1;
 480
 481   request_irq(1, dn_keyb_int,0,NULL,NULL);
 482
 483   /* enable receive int on DUART */
 484   sio01.isr_imr=3;
 485
 486   return 0;
 487
 488 }
 489
 490 int dn_dummy_kbdrate(struct kbd_repeat *k) {
 491
 492   printk("dn_dummy_kbdrate\n");
 493
 494   return 0;
 495
 496 }