patch-2.1.91 linux/drivers/char/dn_keyb.c
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- Lines: 615
- Date:
Sat Mar 21 11:06:17 1998
- Orig file:
v2.1.90/linux/drivers/char/dn_keyb.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.1.90/linux/drivers/char/dn_keyb.c linux/drivers/char/dn_keyb.c
@@ -0,0 +1,614 @@
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/keyboard.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/kd.h>
+#include <linux/random.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/poll.h>
+#include <linux/miscdevice.h>
+#include <linux/init.h>
+
+#include <asm/setup.h>
+#include <asm/irq.h>
+#include <asm/apollohw.h>
+#include <asm/uaccess.h>
+
+
+extern void handle_scancode(unsigned char);
+
+#define DNKEY_CAPS 0x7e
+#define BREAK_FLAG 0x80
+#define DNKEY_REPEAT_DELAY 50
+#define DNKEY_CTRL 0x43
+#define DNKEY_LSHIFT 0x5e
+#define DNKEY_RSHIFT 0x6a
+#define DNKEY_REPT 0x5d
+#define DNKEY_REPEAT 0x7f
+#define DNKEY_LALT 0x75
+#define DNKEY_RALT 0x77
+
+#define APOLLO_KEYB_CMD_ENTRIES 16
+#define APOLLO_KBD_MODE_KEYB 0x01
+#define APOLLO_KBD_MODE_MOUSE 0x02
+#define APOLLO_KBD_MODE_CHANGE 0xff
+
+#define MSE_UPDATE_ON() mouse_update_allowed=1
+#define MSE_UPDATE_OFF() mouse_update_allowed=0
+
+static u_char keyb_cmds[APOLLO_KEYB_CMD_ENTRIES];
+static short keyb_cmd_read=0, keyb_cmd_write=0;
+static int keyb_cmd_transmit=0;
+
+static unsigned int kbd_mode=APOLLO_KBD_MODE_KEYB;
+static short mouse_dx,mouse_dy,mouse_buttons;
+static int mouse_ready=0,mouse_update_allowed=0,mouse_active=0;
+static struct wait_queue *mouse_wait=NULL;
+static struct fasync_struct *mouse_fasyncptr=NULL;
+
+#if 0
+static void debug_keyb_timer_handler(unsigned long ignored);
+static u_char debug_buf1[4096],debug_buf2[4096],*debug_buf=&debug_buf1[0];
+static u_char *shadow_buf=&debug_buf2[0];
+static short debug_buf_count=0;
+static int debug_buf_overrun=0,debug_timer_running=0,debug_buffer_updated=0;
+static struct timer_list debug_keyb_timer = { NULL, NULL, 0, 0,
+ debug_keyb_timer_handler };
+#endif
+
+static u_short dnplain_map[NR_KEYS] __initdata = {
+/* ins del del F1 F2 F3 F4
+ mark line char */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+/* F5 F6 F7 F8 F9 F0 Again Read */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+/* Edit Exit Hold Copy Paste Grow ESC */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf01b,
+/* 1 2 3 4 5 6 7 8 */
+ 0xf031, 0xf032, 0xf033, 0xf034, 0xf035, 0xf036, 0xf037, 0xf038,
+/* 9 0 - = ` Back |<--
+ Space */
+ 0xf039, 0xf030, 0xf02d, 0xf03d, 0xf060, 0xf07f, 0xf200, 0xf200,
+/* Shell -->| Tab q w e
+ Cmd */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf009, 0xfb71, 0xfb77, 0xfb65,
+/* r t y u i o p [ */
+ 0xfb72, 0xfb74, 0xfb79, 0xfb75, 0xfb69, 0xfb6f, 0xfb70, 0xf05b,
+/* ] Del 7 8 9 + */
+ 0xf05d, 0xf200, 0xf200, 0xf200, 0xf307, 0xf308, 0xf300, 0xf30a,
+/* [<--] Up [-->] Ctrl a s */
+ 0xf200, 0xf600, 0xf200, 0xf702, 0xf200, 0xf200, 0xfb61, 0xfb73,
+/* d f g h j k l ; */
+ 0xfb64, 0xfb66, 0xfb67, 0xfb68, 0xfb6a, 0xfb6b, 0xfb6c, 0xf03b,
+/* ' Return \ 4 5 6 */
+ 0xf027, 0xf200, 0xf201, 0xf05c, 0xf200, 0xf304, 0xf305, 0xf306,
+/* - <-- Next --> Rept Shift
+ Window */
+ 0xf30b, 0xf601, 0xf200, 0xf602, 0xf200, 0xf200, 0xf700, 0xf200,
+/* z x c v b n m , */
+ 0xfb7a, 0xfb78, 0xfb63, 0xfb76, 0xfb62, 0xfb6e, 0xfb6d, 0xf02c,
+/* . / Shift Pop 1 2 */
+ 0xf02e, 0xf02f, 0xf700, 0xf200, 0xf200, 0xf200, 0xf301, 0xf302,
+/* 3 PgUp Down PgDn Alt Space Alt */
+ 0xf303, 0xf200, 0xf118, 0xf603, 0xf119, 0xf703, 0xf020, 0xf701,
+/* 0 . Enter */
+ 0xf200, 0xf300, 0xf200, 0xf310, 0xf30e, 0xf200, 0xf700, 0xf200,
+};
+
+static u_short dnshift_map[NR_KEYS] __initdata = {
+/* ins del del F1 F2 F3 F4
+ mark line char */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+/* F5 F6 F7 F8 F9 F0 Again Read */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+/* Save Abort Help Cut Undo Grow ESC */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf01b,
+/* ! @ # $ % ^ & * */
+ 0xf021, 0xf040, 0xf023, 0xf024, 0xf025, 0xf05e, 0xf026, 0xf02a,
+/* ( ) _ + ~ Back |<--
+ Space */
+ 0xf028, 0xf029, 0xf05f, 0xf02b, 0xf07e, 0xf07f, 0xf200, 0xf200,
+/* Shell -->| Tab Q W E
+ Cmd */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf009, 0xfb51, 0xfb57, 0xfb45,
+/* R T Y U I O P { */
+ 0xfb52, 0xfb54, 0xfb59, 0xfb55, 0xfb49, 0xfb4f, 0xfb50, 0xf07b,
+/* } Del 7 8 9 + */
+ 0xf07d, 0xf200, 0xf200, 0xf200, 0xf307, 0xf308, 0xf300, 0xf30a,
+/* [<--] Up [-->] Ctrl A S */
+ 0xf200, 0xf600, 0xf200, 0xf702, 0xf200, 0xf200, 0xfb41, 0xfb53,
+/* D F G H J K L : */
+ 0xfb44, 0xfb46, 0xfb47, 0xfb48, 0xfb4a, 0xfb4b, 0xfb4c, 0xf03a,
+/* " Return | 4 5 6 */
+ 0xf022, 0xf200, 0xf201, 0xf07c, 0xf200, 0xf304, 0xf305, 0xf306,
+/* - <-- Next --> Rept Shift
+ Window */
+ 0xf30b, 0xf601, 0xf200, 0xf602, 0xf200, 0xf200, 0xf700, 0xf200,
+/* Z X C V B N M < */
+ 0xfb5a, 0xfb58, 0xfb43, 0xfb56, 0xfb42, 0xfb4e, 0xfb4d, 0xf03c,
+/* > ? Shift Pop 1 2 */
+ 0xf03e, 0xf03f, 0xf700, 0xf200, 0xf200, 0xf200, 0xf301, 0xf302,
+/* 3 PgUp Down PgDn Alt Space Alt */
+ 0xf303, 0xf200, 0xf118, 0xf603, 0xf119, 0xf703, 0xf020, 0xf701,
+/* 0 . Enter */
+ 0xf200, 0xf300, 0xf200, 0xf310, 0xf30e, 0xf200, 0xf708, 0xf200,
+};
+
+static u_short dnctrl_map[NR_KEYS] __initdata = {
+/* ins del del F1 F2 F3 F4
+ mark line char */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+/* F5 F6 F7 F8 F9 F0 Again Read */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+/* Save Abort Help Cut Undo Grow ESC */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf01b,
+/* ! @ # $ % ^ & * */
+ 0xf200, 0xf000, 0xf01b, 0xf01c, 0xf01d, 0xf01e, 0xf01f, 0xf07f,
+/* ( ) _ + ~ Back |<--
+ Space */
+ 0xf200, 0xf200, 0xf01f, 0xf200, 0xf01c, 0xf200, 0xf200, 0xf200,
+/* Shell -->| Tab Q W E
+ Cmd */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf009, 0xf011, 0xf017, 0xf005,
+/* R T Y U I O P { */
+ 0xf012, 0xf014, 0xf019, 0xf015, 0xf009, 0xf00f, 0xf010, 0xf01b,
+/* } Del 7 8 9 + */
+ 0xf01d, 0xf200, 0xf200, 0xf200, 0xf307, 0xf308, 0xf300, 0xf30a,
+/* [<--] Up [-->] Ctrl A S */
+ 0xf200, 0xf600, 0xf200, 0xf702, 0xf200, 0xf200, 0xfb01, 0xfb53,
+/* D F G H J K L : */
+ 0xf004, 0xf006, 0xf007, 0xf008, 0xf00a, 0xf00b, 0xf00c, 0xf200,
+/* " Return | 4 5 6 */
+ 0xf200, 0xf200, 0xf201, 0xf01c, 0xf200, 0xf304, 0xf305, 0xf306,
+/* - <-- Next --> Rept Shift
+ Window */
+ 0xf30b, 0xf601, 0xf200, 0xf602, 0xf200, 0xf200, 0xf704, 0xf200,
+/* Z X C V B N M < */
+ 0xf01a, 0xf018, 0xf003, 0xf016, 0xf002, 0xf00e, 0xf01d, 0xf03c,
+/* > ? Shift Pop 1 2 */
+ 0xf03e, 0xf03f, 0xf705, 0xf200, 0xf200, 0xf200, 0xf301, 0xf302,
+/* 3 PgUp Down PgDn Alt Space Alt */
+ 0xf303, 0xf200, 0xf118, 0xf603, 0xf119, 0xf703, 0xf020, 0xf701,
+/* 0 . Enter */
+ 0xf200, 0xf300, 0xf200, 0xf310, 0xf30e, 0xf200, 0xf200, 0xf200,
+};
+
+static u_short dnalt_map[NR_KEYS] __initdata = {
+/* ins del del F1 F2 F3 F4
+ mark line char */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf500, 0xf501, 0xf502, 0xf503,
+/* F5 F6 F7 F8 F9 F0 Again Read */
+ 0xf504, 0xf505, 0xf506, 0xf507, 0xf508, 0xf509, 0xf200, 0xf200,
+/* Edit Exit Hold Copy Paste Grow ESC */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf01b,
+/* 1 2 3 4 5 6 7 8 */
+ 0xf831, 0xf832, 0xf833, 0xf834, 0xf835, 0xf836, 0xf837, 0xf838,
+/* 9 0 - = ` Back |<--
+ Space */
+ 0xf839, 0xf830, 0xf82d, 0xf83d, 0xf860, 0xf87f, 0xf200, 0xf200,
+/* Shell -->| Tab q w e
+ Cmd */
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf809, 0xf871, 0xf877, 0xf865,
+/* r t y u i o p [ */
+ 0xf872, 0xf874, 0xf879, 0xf875, 0xf869, 0xf86f, 0xf870, 0xf85b,
+/* ] Del 7 8 9 + */
+ 0xf05d, 0xf200, 0xf200, 0xf200, 0xf307, 0xf308, 0xf300, 0xf30a,
+/* [<--] Up [-->] Ctrl a s */
+ 0xf200, 0xf600, 0xf200, 0xf702, 0xf200, 0xf200, 0xf861, 0xf873,
+/* d f g h j k l ; */
+ 0xf864, 0xf866, 0xf867, 0xf868, 0xf86a, 0xf86b, 0xf86c, 0xf03b,
+/* ' Return \ 4 5 6 */
+ 0xf027, 0xf200, 0xf201, 0xf05c, 0xf200, 0xf304, 0xf305, 0xf306,
+/* - <-- Next --> Rept Shift
+ Window */
+ 0xf30b, 0xf601, 0xf200, 0xf602, 0xf200, 0xf200, 0xf704, 0xf200,
+/* z x c v b n m , */
+ 0xf87a, 0xf878, 0xf863, 0xf876, 0xf862, 0xf86e, 0xf86d, 0xf82c,
+/* . / Shift Pop 1 2 */
+ 0xf82e, 0xf82f, 0xf705, 0xf200, 0xf200, 0xf200, 0xf301, 0xf302,
+/* 3 PgUp Down PgDn Alt Space Alt */
+ 0xf303, 0xf200, 0xf118, 0xf603, 0xf119, 0xf703, 0xf820, 0xf701,
+/* 0 . Enter */
+ 0xf200, 0xf300, 0xf200, 0xf310, 0xf30e, 0xf200, 0xf200, 0xf200,
+};
+
+static u_short dnaltgr_map[NR_KEYS] __initdata = {
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200
+};
+
+static u_short dnshift_ctrl_map[NR_KEYS] __initdata = {
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200
+};
+
+static u_short dnctrl_alt_map[NR_KEYS] __initdata = {
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200,
+ 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200, 0xf200
+};
+
+#if 0
+static void debug_keyb_timer_handler(unsigned long ignored) {
+
+ unsigned long flags;
+ u_char *swap;
+ short length,i;
+
+ if((jiffies-debug_buffer_updated) > 100) {
+ save_flags(flags);
+ cli();
+ length=debug_buf_count;
+ swap=debug_buf;
+ debug_buf=shadow_buf;
+ shadow_buf=swap;
+ debug_buf_count=0;
+ debug_timer_running=0;
+ restore_flags(flags);
+ for(i=1;length;length--,i++)
+ printk("%02x%c",*(swap++), (i % 25) ? ' ' : '\n');
+ printk("\n");
+ }
+ else {
+ debug_keyb_timer.expires=jiffies+10;
+ add_timer(&debug_keyb_timer);
+ }
+}
+#endif
+
+static unsigned int mouse_poll(struct file *file, poll_table * wait)
+{
+ poll_wait(&mouse_wait, wait);
+ if (mouse_ready)
+ return POLLIN | POLLRDNORM;
+ return 0;
+}
+
+static ssize_t write_mouse(struct file * file, const char * buffer,
+ size_t count, loff_t *ppos)
+{
+ return -EINVAL;
+}
+
+static ssize_t read_mouse(struct file * file, char * buffer,
+ size_t count, loff_t *ppos)
+{
+ int dx,dy,r;
+ unsigned char buttons;
+
+ if (count < 3)
+ return -EINVAL;
+ if ((r = verify_area(VERIFY_WRITE, buffer, count)))
+ return r;
+ if (!mouse_ready)
+ return -EAGAIN;
+
+ MSE_UPDATE_OFF();
+ dx=mouse_dx;
+ dy=mouse_dy;
+ if (dx < -127)
+ dx = -127;
+ else
+ if (dx > 127)
+ dx = 127;
+ if (dy < -127)
+ dy = -127;
+ else
+ if (dy > 127)
+ dy = 127;
+ buttons=(mouse_buttons & 1 ? 4 : 0) |
+ (mouse_buttons & 2 ? 1 : 0) |
+ (mouse_buttons & 4 ? 2 : 0);
+
+ mouse_dx-=dx;
+ mouse_dy-=dy;
+ MSE_UPDATE_ON();
+
+ if (put_user(buttons | 0x80, buffer++) ||
+ put_user((char)dx, buffer++) ||
+ put_user((char)dy, buffer++))
+ return -EINVAL;
+
+ if (count > 3)
+ if (clear_user(buffer, count - 3))
+ return -EFAULT;
+ return count;
+}
+
+static int fasync_mouse(struct file *filp, int on)
+{
+ int retval;
+
+ retval = fasync_helper(filp, on, &mouse_fasyncptr);
+ if (retval < 0)
+ return retval;
+ return 0;
+}
+
+
+static int release_mouse(struct inode * inode, struct file * file)
+{
+ fasync_mouse(file, 0);
+ if (--mouse_active)
+ return 0;
+ MSE_UPDATE_OFF();
+ MOD_DEC_USE_COUNT;
+ return 0;
+}
+
+static int open_mouse(struct inode * inode, struct file * file)
+{
+ if (mouse_active++)
+ return 0;
+ /*
+ * use VBL to poll mouse deltas
+ */
+
+ mouse_dx = 0;
+ mouse_dy = 0;
+ mouse_buttons = 0;
+ mouse_active = 1;
+ MOD_INC_USE_COUNT;
+ MSE_UPDATE_ON();
+ return 0;
+}
+
+static void dn_keyb_process_key_event(unsigned char scancode) {
+
+ static unsigned char lastscancode;
+ unsigned char prev_scancode=lastscancode;
+ static unsigned int lastkeypress;
+
+ lastscancode=scancode;
+
+ /* printk("scan: %02x, lastscan: %02X, prev_scancode: %02X\n",scancode,lastscancode,prev_scancode); */
+
+ if(prev_scancode==APOLLO_KBD_MODE_CHANGE) {
+ kbd_mode=scancode;
+/* printk("modechange: %d\n",scancode);*/
+ }
+ else if((scancode & (~BREAK_FLAG)) == DNKEY_CAPS) {
+ /* printk("handle_scancode: %02x\n",DNKEY_CAPS); */
+ handle_scancode(DNKEY_CAPS);
+ /* printk("handle_scancode: %02x\n",BREAK_FLAG | DNKEY_CAPS); */
+ handle_scancode(BREAK_FLAG | DNKEY_CAPS);
+ }
+ else if( (scancode == DNKEY_REPEAT) && (prev_scancode < 0x7e) &&
+ !(prev_scancode==DNKEY_CTRL || prev_scancode==DNKEY_LSHIFT ||
+ prev_scancode==DNKEY_RSHIFT || prev_scancode==DNKEY_REPT ||
+ prev_scancode==DNKEY_LALT || prev_scancode==DNKEY_RALT)) {
+ if(jiffies-lastkeypress > DNKEY_REPEAT_DELAY) {
+ /* printk("handle_scancode: %02x\n",prev_scancode); */
+ handle_scancode(prev_scancode);
+ }
+ lastscancode=prev_scancode;
+ }
+ else {
+ /* printk("handle_scancode: %02x\n",scancode); */
+ handle_scancode(scancode);
+ lastkeypress=jiffies;
+ }
+}
+
+static void dn_keyb_process_mouse_event(unsigned char mouse_data) {
+
+ static short mouse_byte_count=0;
+ static u_char mouse_packet[3];
+
+ mouse_packet[mouse_byte_count++]=mouse_data;
+
+ if(mouse_byte_count==3) {
+ if(mouse_packet[0]==APOLLO_KBD_MODE_CHANGE) {
+ kbd_mode=mouse_packet[1];
+ mouse_byte_count=0;
+/* printk("modechange: %d\n",mouse_packet[1]); */
+ if(kbd_mode==APOLLO_KBD_MODE_KEYB)
+ dn_keyb_process_key_event(mouse_packet[2]);
+ }
+ if((mouse_packet[0] & 0x8f) == 0x80) {
+ if(mouse_update_allowed) {
+ mouse_ready=1;
+ mouse_buttons=(mouse_packet[0] >> 4) & 0x7;
+ mouse_dx+=mouse_packet[1] == 0xff ? 0 : (signed char)mouse_packet[1];
+ mouse_dy+=mouse_packet[2] == 0xff ? 0 : (signed char)mouse_packet[2];
+ wake_up_interruptible(&mouse_wait);
+ if (mouse_dx < -2048)
+ mouse_dx = -2048;
+ else
+ if (mouse_dx > 2048)
+ mouse_dx = 2048;
+ if (mouse_dy < -2048)
+ mouse_dy = -2048;
+ else
+ if (mouse_dy > 2048)
+ mouse_dy = 2048;
+ if (mouse_fasyncptr)
+ kill_fasync(mouse_fasyncptr, SIGIO);
+ }
+ mouse_byte_count=0;
+/* printk("mouse: %d, %d, %x\n",mouse_x,mouse_y,buttons); */
+ }
+ }
+}
+
+static void dn_keyb_int(int irq, void *dummy, struct pt_regs *fp) {
+
+ unsigned char data;
+ unsigned long flags;
+ int scn2681_ints;
+
+ do {
+ scn2681_ints=sio01.isr_imr & 3;
+ if(scn2681_ints & 2) {
+ data=sio01.rhra_thra;
+#if 0
+ if(debug_buf_count<4096) {
+ debug_buf[debug_buf_count++]=data;
+ debug_buffer_updated=jiffies;
+ if(!debug_timer_running) {
+ add_timer(&debug_keyb_timer);
+ debug_keyb_timer.expires=jiffies+10;
+ debug_timer_running=1;
+ }
+ }
+ else
+ debug_buf_overrun=1;
+#endif
+ if(sio01.sra_csra & 0x10) {
+ printk("whaa overrun !\n");
+ continue;
+ }
+
+ if(kbd_mode==APOLLO_KBD_MODE_KEYB)
+ dn_keyb_process_key_event(data);
+ else
+ dn_keyb_process_mouse_event(data);
+ }
+
+ if(scn2681_ints & 1) {
+ save_flags(flags);
+ cli();
+ if(keyb_cmd_write!=keyb_cmd_read) {
+ sio01.rhra_thra=keyb_cmds[keyb_cmd_read++];
+ if(keyb_cmd_read==APOLLO_KEYB_CMD_ENTRIES)
+ keyb_cmd_read=0;
+ keyb_cmd_transmit=1;
+ }
+ else {
+ keyb_cmd_transmit=0;
+ sio01.BRGtest_cra=9;
+ }
+ restore_flags(flags);
+ }
+ } while(scn2681_ints) ;
+}
+
+void write_keyb_cmd(u_short length, u_char *cmd) {
+
+ unsigned long flags;
+
+ if((keyb_cmd_write==keyb_cmd_read) && keyb_cmd_transmit)
+ return;
+
+ save_flags(flags);
+ cli();
+ for(;length;length--) {
+ keyb_cmds[keyb_cmd_write++]=*(cmd++);
+ if(keyb_cmd_write==keyb_cmd_read)
+ return;
+ if(keyb_cmd_write==APOLLO_KEYB_CMD_ENTRIES)
+ keyb_cmd_write=0;
+ }
+ if(!keyb_cmd_transmit) {
+ sio01.BRGtest_cra=5;
+ }
+ restore_flags(flags);
+
+}
+
+struct file_operations apollo_mouse_fops = {
+ NULL, /* mouse_seek */
+ read_mouse,
+ write_mouse,
+ NULL, /* mouse_readdir */
+ mouse_poll, /* mouse_poll */
+ NULL, /* mouse_ioctl */
+ NULL, /* mouse_mmap */
+ open_mouse,
+ release_mouse,
+ NULL,
+ fasync_mouse,
+};
+
+static struct miscdevice apollo_mouse = {
+ APOLLO_MOUSE_MINOR, "apollomouse", &apollo_mouse_fops
+};
+
+__initfunc(int dn_keyb_init(void)) {
+
+/* printk("dn_keyb_init\n"); */
+
+ memcpy(plain_map, dnplain_map, sizeof(plain_map));
+ memcpy(shift_map, dnshift_map, sizeof(shift_map));
+ memcpy(altgr_map, dnaltgr_map, sizeof(altgr_map));
+ memcpy(ctrl_map, dnctrl_map, sizeof(ctrl_map));
+ memcpy(shift_ctrl_map, dnshift_ctrl_map, sizeof(shift_ctrl_map));
+ memcpy(alt_map, dnalt_map, sizeof(alt_map));
+ memcpy(ctrl_alt_map, dnctrl_alt_map, sizeof(ctrl_alt_map));
+
+ mouse_dx=0;
+ mouse_dy=0;
+ mouse_buttons=0;
+ mouse_wait=NULL;
+
+ misc_register(&apollo_mouse);
+
+ /* program UpDownMode */
+
+ while(!(sio01.sra_csra & 0x4));
+ sio01.rhra_thra=0xff;
+
+ while(!(sio01.sra_csra & 0x4));
+ sio01.rhra_thra=0x1;
+
+ request_irq(1, dn_keyb_int,0,NULL,NULL);
+
+ /* enable receive int on DUART */
+ sio01.isr_imr=3;
+
+ return 0;
+
+}
+
+int dn_dummy_kbdrate(struct kbd_repeat *k) {
+
+ printk("dn_dummy_kbdrate\n");
+
+ return 0;
+
+}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov