RE: Info on dn_keyb.c

From: Geert Uytterhoeven (geert@linux-m68k.org)
Date: Thu Jul 11 2002 - 01:30:40 EST

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On Wed, 10 Jul 2002, James Simmons wrote:
> > >How is in charge of it and where can I get docs on the hardware so I can
> > >port the driver to the input api?
> >
> > It was Peter De Schrijver who made the M68K Apollo DN port.
> > I have the hardware docs on paper. I could try to send you the relevant parts
> > or help you to port it.
>
> Could you send me the docs. Its time to port the keyboard driver over to
> the input api.

FYI, you need the following patch (from Linux/m68k CVS) to make the current
dn_keyb.c compile:

--- linux-2.5.25/drivers/char/dn_keyb.c Fri Jul 14 21:20:22 2000
+++ linux-m68k-2.5.25/drivers/char/dn_keyb.c Mon Jun 17 11:39:09 2002
@@ -5,6 +5,7 @@
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/kd.h>
+#include <linux/kbd_ll.h>
#include <linux/random.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -19,8 +20,6 @@

#include "busmouse.h"

-/* extern void handle_scancode(unsigned char,int ); */
-
#define DNKEY_CAPS 0x7e
#define BREAK_FLAG 0x80
#define DNKEY_REPEAT_DELAY 50
@@ -336,7 +335,8 @@

         static short mouse_byte_count=0;
         static u_char mouse_packet[3];
- short mouse_buttons;
+ short buttons;
+ int dx, dy;

         mouse_packet[mouse_byte_count++]=mouse_data;

@@ -347,24 +347,12 @@
/* 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;
- kill_fasync(&mouse_fasyncptr, SIGIO, POLL_IN);
- }
+ buttons = (mouse_packet[0] >> 4) & 0x7;
+ dx = mouse_packet[1] == 0xff ? 0 : (signed char)mouse_packet[1];
+ dy = mouse_packet[2] == 0xff ? 0 : (signed char)mouse_packet[2];
+ busmouse_add_movementbuttons(msedev, dx, dy, buttons);
                         mouse_byte_count=0;
/* printk("mouse: %d, %d, %x\n",mouse_x,mouse_y,buttons); */
                 }

Gr{oetje,eeting}s,

Geert

-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds

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Next message: Alexander Viro: "Re: Rusty's module talk at the Kernel Summit"
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