X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=bootcensus;a=blobdiff_plain;f=src%2Fkeyb.c;h=0b6187129b305b010e21efe9fc7b77222a908391;hp=a63312e62ece6361af7323b157425cbab84623e6;hb=5e8cc93aaf1173688852acaa0825698c2dc0cb3f;hpb=91253d061647c194cdc8c16c9ae85eccdf942139 diff --git a/src/keyb.c b/src/keyb.c index a63312e..0b61871 100644 --- a/src/keyb.c +++ b/src/keyb.c @@ -15,13 +15,13 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ +#include #include #include "keyb.h" #include "intr.h" #include "asmops.h" +#include "kbregs.h" -#define KB_IRQ 1 -#define KB_PORT 0x60 /* table with rough translations from set 1 scancodes to ASCII-ish */ static int scantbl[] = { @@ -115,12 +115,56 @@ void kb_putback(int key) buffer[buf_ridx] = key; } +int kb_wait_write(void) +{ + int i; + for(i=0; i<32768; i++) { + if(!(inb(KB_STATUS_PORT) & KB_STAT_INBUF_FULL)) { + return 1; + } + iodelay(); + } + /*printf("kb_wait_write timeout\n");*/ + return 0; +} + +int kb_wait_read(void) +{ + int i; + for(i=0; i<32768; i++) { + if((inb(KB_STATUS_PORT) & KB_STAT_OUTBUF_FULL)) { + return 1; + } + iodelay(); + } + /*printf("kb_wait_read timeout\n");*/ + return 0; +} + +void kb_send_cmd(unsigned char cmd) +{ + kb_wait_write(); + outb(cmd, KB_CMD_PORT); +} + +void kb_send_data(unsigned char data) +{ + kb_wait_write(); + outb(data, KB_DATA_PORT); +} + +unsigned char kb_read_data(void) +{ + kb_wait_read(); + return inb(KB_DATA_PORT); +} + static void kbintr() { unsigned char code; int key, press; - code = inb(KB_PORT); + code = inb(KB_DATA_PORT); if(code >= 128) { press = 0;