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- Committer: Bazaar Package Importer
- Author(s): Daniel Jacobowitz
- Date: 2001-07-15 22:15:13 UTC
- Revision ID: james.westby@ubuntu.com-20010715221513-ptyrz3o919viteco
Tags: 1.1.3-5
* Be more aggressive about removing the diversion.
* Be more aggressive about actually documenting the problem.
* Be more aggressive about actually documenting the problem.
- files added:
- backlight.c
- debian
- files modified:
- Makefile
added
removed
mousemode.c
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/* mousemode.c
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*
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* A program for linux-pmac by jonh Tue Feb 18 00:46:10 EST 1997
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* hacked mercilessly by warner@lothar.com: don't blame jonh for my bugs!
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*
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* which feeds the right things to /dev/adb to reconfigure
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* Apple Desktop Bus mice. It sets a mouse's ADB register 3 to the
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#include <unistd.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <linux/adb.h>
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#include <linux/cuda.h>
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int fd; /* put this here where everybody can see it. Hey, it's not so */
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/* much a global as it is an "object variable," where this */
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/* program is the object. Yeah, that's it! Ahem. */
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static void setmouse( int );
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static int showmouse( void );
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static void send( char *, int );
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static void listen( char * );
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int main(int argc, char **argv)
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{
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int mode;
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fd = open("/dev/adb", O_RDWR);
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if (fd <= 0) {
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perror("opening /dev/adb");
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exit(EXIT_FAILURE);
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}
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if (argc >= 2) {
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mode = atoi(argv[1]);
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if ((argc == 2 && (mode <= 0 || mode >= 0x0fd)) || argc >= 3) {
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(void) printf("usage: mousemode [n]\n");
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(void) printf(" Configures mouse at ADB address 3 to use handler ID n.\n");
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(void) printf(" If n is omitted, prints value of current handler ID.\n");
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exit(EXIT_FAILURE);
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}
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if (argc == 2) {
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setmouse(mode);
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}
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}
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(void) printf("%d\n", showmouse());
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(void) close(fd);
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exit(EXIT_SUCCESS);
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}
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static void setmouse(int mode)
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{
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char y[15];
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/* curious parties should read Inside Mac/Devices/ADB Manager, */
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/* looking at page 5-11. Inside Mac is available as pdf files */
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/* from Apple's site. */
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/* CUDA device 0? (the clock seems to be at 1) */
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y[0]=(char) 0x000;
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/* mouse (0x30) listen (0x08) reg 3 (0x03) */
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y[1]=(char) 0x03b;
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/* service request enable (0x20), device addr 3 (0x03) */
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y[2]=(char) 0x023;
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/* device handler ID == mode */
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y[3]=(char) mode;
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send(y, 4);
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listen(y);
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}
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static int showmouse()
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{
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char y[15];
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y[0]=(char) 0x000; /* Cuda device 0 */
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y[1]=(char) 0x03f; /* mouse talk reg 3 */
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send(y, 2);
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listen(y);
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/* make sure reply is from: */
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if (y[0] == (char) 0 /* cuda device 0 */
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&& y[1] == (char) 0 /* no status/error bits (I'm guessing) */
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&& y[2] == (char) 0x03f) { /* mouse talk reg 3 */
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/* skip 1st byte of reg 3, and return handler ID */
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return( (int) y[4] );
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} else {
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return -1;
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}
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}
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static void send(char *y, int len)
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{
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int n;
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n = (int) write(fd, y, (size_t) len);
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if (n < len) {
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perror("writing /dev/adb");
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(void) close(fd);
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exit (EXIT_FAILURE);
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}
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}
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static void listen(char *y)
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{
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int n;
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do {
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n = (int) read(fd, y, (size_t) 80);
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if (n > 0) {
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y += (char) n;
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} else if (n<0) {
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perror("reading /dev/adb");
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(void) close(fd);
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exit(EXIT_FAILURE);
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}
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} while (n > 0);
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void
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send(unsigned char *y, int len)
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{
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int n;
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#if 0
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printf("send: ");
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for (n=0; n < len; n++)
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printf("0x%02x ",y[n]);
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printf("\n");
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#endif
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n = write(fd, y, (size_t) len);
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if (n < len) {
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perror("writing /dev/adb");
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close(fd);
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exit (EXIT_FAILURE);
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}
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}
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void
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listen(unsigned char *y)
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{
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int n;
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n = read(fd, y, 80);
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#if 0
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printf("%d: ",n);
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if (n > 0) {
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int i;
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for (i=0; i < n; i++)
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printf("0x%02x ",y[i]);
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}
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printf("\n");
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#endif
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if (n < 0) {
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perror("reading /dev/adb");
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close(fd);
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exit(EXIT_FAILURE);
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}
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}
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void
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setmouse(int addr, int mode)
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{
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unsigned char y[15];
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/* curious parties should read Inside Mac/Devices/ADB Manager, */
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/* looking at page 5-11. Inside Mac is available as pdf files */
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/* from Apple's site. */
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/* CUDA device 0? (the clock seems to be at 1) */
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y[0] = ADB_PACKET;
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/* mouse (0x30) listen (0x08) reg 3 (0x03) */
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y[1] = ADB_WRITEREG(addr, 3);
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/* service request enable (0x20), device addr 3 (0x03) */
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//y[2]=(char) 0x023;
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y[2] = 0x20 + addr;
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/* device handler ID == mode */
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y[3]= mode;
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send(y, 4);
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listen(y);
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}
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int
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showmouse(int addr)
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{
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unsigned char y[15];
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y[0] = ADB_PACKET;
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y[1] = ADB_READREG(addr, 3);
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send(y, 2);
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listen(y);
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/* make sure reply is from: */
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if (y[0] == ADB_READREG(addr, 3)) {
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return (y[2]);
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} else {
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return -1;
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}
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}
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int
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main(int argc, char **argv)
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{
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int addr, mode;
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// argc==2: 'mousemode <addr>'
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// argc==3: 'mousemode <addr> <handler>'
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if (argc < 2 || argc > 3) {
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printf("usage: mousemode <addr> [<handler>]\n");
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printf(" Configures mouse at ADB address <addr> to use <handler>\n");
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printf(" without <handler>, print value of current handler\n");
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exit(EXIT_FAILURE);
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}
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fd = open("/dev/adb", O_RDWR);
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if (fd <= 0) {
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perror("opening /dev/adb");
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exit(EXIT_FAILURE);
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}
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addr = atoi(argv[1]);
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if (argc == 3) {
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mode = atoi(argv[2]);
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printf("handler for addr %d was %d\n", addr, showmouse(addr));
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printf("trying to set handler to %d...\n", mode);
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setmouse(addr, mode);
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printf("handler is now %d\n", showmouse(addr));
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} else {
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printf("handler for addr %d is %d\n", addr, showmouse(addr));
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}
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close(fd);
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return 0;
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}
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