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https://github.com/raphnet/dreamcast_usb
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2013-11-09 : Version 1.2
- Dreamcast keyboard support (Tested: HKT-7600 and HKT-4000) - Increased poll rate for better responsiveness - Display an image on the LCD if present. (Static image. Not usable by emulators)
This commit is contained in:
Raphaël Assénat
parent
c4acc4b111
commit
2449b650cf
@ -1,6 +1,8 @@
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2013-11-03 : Version 1.2
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- Dreamcast keyboard support (Tested: HKT-7600)
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2013-11-09 : Version 1.2
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- Dreamcast keyboard support (Tested: HKT-7600 and HKT-4000)
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- Increased poll rate for better responsiveness
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- Display an image on the LCD if present.
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(Static image. Not usable by emulators)
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2013-11-02 : Version 1.1.1
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- Longer timeout waiting for an answer.
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35
checksize
35
checksize
@ -1,35 +0,0 @@
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#!/bin/sh
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# Name: checksize
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# Project: AVR-USB
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# Author: Christian Starkjohann
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# Creation Date: 2004-12-29
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# Tabsize: 4
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# Copyright: (c) 2005 OBJECTIVE DEVELOPMENT Software GmbH.
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# Revision: $Id: checksize,v 1.1 2013-10-13 21:01:08 cvs Exp $
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error=0
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codelimit=8192
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datalimit=960 # leave 64 bytes for stack
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if [ $# -gt 1 ]; then
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codelimit="$2"
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fi
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if [ $# -gt 2 ]; then
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datalimit="$3"
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fi
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set -- `avr-size -d "$1" | awk '/[0-9]/ {print $1 + $2, $2 + $3, $2}'`
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if [ $1 -gt $codelimit ]; then
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echo "*** code size $1 exceeds limit of $codelimit"
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error=1
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else
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echo "ROM: $1 bytes (data=$3)"
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fi
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if [ $2 -gt $datalimit ]; then
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echo "*** data size $2 exceeds limit of $datalimit"
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error=1
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else
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echo "RAM: $2 bytes"
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fi
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exit $error
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85
dc_pad.c
85
dc_pad.c
@ -19,8 +19,9 @@
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*/
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <util/delay.h>
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#include <avr/pgmspace.h>
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#include <util/delay.h>
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#include <string.h>
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#include "usbdrv.h"
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#include "gamepad.h"
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@ -281,18 +282,68 @@ static void dcInit(void)
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#define STATE_READ_PAD 2
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#define STATE_READ_MOUSE 3
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#define STATE_READ_KEYBOARD 4
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#define STATE_LCD_DETECT 5
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#define STATE_NULL 6
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static unsigned char state = STATE_RESET_DEVICE;
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const char lcd_data[200] PROGMEM = {
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0x00, 0x00, 0x00, 0x04,
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0x00, 0x00, 0x00, 0x00,
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#include "raphnet.c"
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};
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static uint8_t lcd_addr = 0;
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static void updateLcd(void)
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{
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unsigned char tmp[30];
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if (lcd_addr) {
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maple_sendFrame_P(MAPLE_CMD_BLOCK_WRITE,
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lcd_addr,
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MAPLE_DC_ADDR | MAPLE_ADDR_PORTB,
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200, lcd_data);
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maple_receiveFrame(tmp, 30);
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}
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}
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static void pollSubs(void)
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{
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int i, v;
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unsigned char tmp[30];
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for (i=0; i<5; i++) {
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maple_sendFrame(MAPLE_CMD_RQ_DEV_INFO,
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MAPLE_ADDR_SUB(i) | MAPLE_ADDR_PORTB,
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MAPLE_DC_ADDR | MAPLE_ADDR_PORTB,
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0, NULL);
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v = maple_receiveFrame(tmp, 30);
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if (v==-2) {
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_delay_ms(2);
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uint16_t func = tmp[4] | tmp[5]<<8;
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if (func & MAPLE_FUNC_LCD) {
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lcd_addr = MAPLE_ADDR_SUB(i) | MAPLE_ADDR_PORTB;
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}
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}
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}
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}
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static void dcReadPad(void)
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{
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static unsigned char state = STATE_RESET_DEVICE;
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static unsigned char err_count = 0;
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unsigned char tmp[30];
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static unsigned char func_data[4];
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static int lcd_detect_count = 0;
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int v;
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switch (state)
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{
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case STATE_NULL:
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{
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}
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break;
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case STATE_RESET_DEVICE:
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{
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maple_sendFrame(MAPLE_CMD_RESET_DEVICE,
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@ -311,7 +362,7 @@ static void dcReadPad(void)
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v = maple_receiveFrame(tmp, 30);
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// Too many data arrives and we stop listening before the controller stop transmitting. The delay
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// Too much data arrives and we stop listening before the controller stop transmitting. The delay
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// here is to wait until the bus is idle again before continuing.
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_delay_ms(2);
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if (v==-2) {
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@ -324,8 +375,9 @@ static void dcReadPad(void)
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func = tmp[4] | tmp[5]<<8;
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if (func & MAPLE_FUNC_CONTROLLER) {
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state = STATE_READ_PAD;
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setConnectedDevice(MAPLE_FUNC_CONTROLLER);
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state = STATE_LCD_DETECT;
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lcd_detect_count = 0;
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} else if (func & MAPLE_FUNC_MOUSE) {
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state = STATE_READ_MOUSE;
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memcpy(func_data, tmp + 5, 4);
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@ -338,6 +390,31 @@ static void dcReadPad(void)
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err_count = 0;
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}
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break;
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// Try for 2 seconds to find the address of the LCD.
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//
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// After 2 seconds of trying, if found, send the
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// image.
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//
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// Sending the image right away after detection does not
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// seem to work. This delay works around this.
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case STATE_LCD_DETECT:
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{
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if (!lcd_addr)
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{
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pollSubs();
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}
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if (lcd_detect_count > 120) {
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if (lcd_addr) {
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updateLcd();
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}
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state = STATE_READ_PAD;
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}
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lcd_detect_count++;
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}
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break;
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case STATE_READ_MOUSE:
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