382 lines
9.0 KiB
C
382 lines
9.0 KiB
C
/* gc_n64_usb : Gamecube or N64 controller to USB adapter firmware
|
|
Copyright (C) 2007-2015 Raphael Assenat <raph@raphnet.net>
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
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 <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <avr/io.h>
|
|
#include <avr/interrupt.h>
|
|
#include <util/delay.h>
|
|
|
|
#include "main.h"
|
|
#include "util.h"
|
|
#include "usart1.h"
|
|
#include "usb.h"
|
|
#include "gamepads.h"
|
|
#include "bootloader.h"
|
|
|
|
#include "gcn64_protocol.h"
|
|
#include "n64.h"
|
|
#include "gamecube.h"
|
|
#include "usbpad.h"
|
|
#include "eeprom.h"
|
|
#include "hiddata.h"
|
|
#include "usbstrings.h"
|
|
#include "intervaltimer.h"
|
|
|
|
/* Those .c files are included rather than linked for we
|
|
* want the sizeof() operator to work on the arrays */
|
|
#include "reportdesc.c"
|
|
#include "dataHidReport.c"
|
|
|
|
#define MAX_READ_ERRORS 30
|
|
|
|
struct cfg0 {
|
|
struct usb_configuration_descriptor configdesc;
|
|
struct usb_interface_descriptor interface;
|
|
struct usb_hid_descriptor hid;
|
|
struct usb_endpoint_descriptor ep1_in;
|
|
|
|
struct usb_interface_descriptor interface_admin;
|
|
struct usb_hid_descriptor hid_data;
|
|
struct usb_endpoint_descriptor ep2_in;
|
|
};
|
|
|
|
static const struct cfg0 cfg0 PROGMEM = {
|
|
.configdesc = {
|
|
.bLength = sizeof(struct usb_configuration_descriptor),
|
|
.bDescriptorType = CONFIGURATION_DESCRIPTOR,
|
|
.wTotalLength = sizeof(cfg0), // includes all descriptors returned together
|
|
.bNumInterfaces = 2,
|
|
.bConfigurationValue = 1,
|
|
.bmAttributes = CFG_DESC_ATTR_RESERVED, // set Self-powred and remote-wakeup here if needed.
|
|
.bMaxPower = 25, // for 50mA
|
|
},
|
|
|
|
// Main interface, HID
|
|
.interface = {
|
|
.bLength = sizeof(struct usb_interface_descriptor),
|
|
.bDescriptorType = INTERFACE_DESCRIPTOR,
|
|
.bInterfaceNumber = 0,
|
|
.bAlternateSetting = 0,
|
|
.bNumEndpoints = 1,
|
|
.bInterfaceClass = USB_DEVICE_CLASS_HID,
|
|
.bInterfaceSubClass = HID_SUBCLASS_NONE,
|
|
.bInterfaceProtocol = HID_PROTOCOL_NONE,
|
|
},
|
|
.hid = {
|
|
.bLength = sizeof(struct usb_hid_descriptor),
|
|
.bDescriptorType = HID_DESCRIPTOR,
|
|
.bcdHid = 0x0101,
|
|
.bCountryCode = HID_COUNTRY_NOT_SUPPORTED,
|
|
.bNumDescriptors = 1, // Only a report descriptor
|
|
.bClassDescriptorType = REPORT_DESCRIPTOR,
|
|
.wClassDescriptorLength = sizeof(gcn64_usbHidReportDescriptor),
|
|
},
|
|
.ep1_in = {
|
|
.bLength = sizeof(struct usb_endpoint_descriptor),
|
|
.bDescriptorType = ENDPOINT_DESCRIPTOR,
|
|
.bEndpointAddress = USB_RQT_DEVICE_TO_HOST | 1, // 0x81
|
|
.bmAttributes = TRANSFER_TYPE_INT,
|
|
.wMaxPacketsize = 64,
|
|
.bInterval = LS_FS_INTERVAL_MS(1),
|
|
},
|
|
|
|
// Second HID interface for config and update
|
|
.interface_admin = {
|
|
.bLength = sizeof(struct usb_interface_descriptor),
|
|
.bDescriptorType = INTERFACE_DESCRIPTOR,
|
|
.bInterfaceNumber = 1,
|
|
.bAlternateSetting = 0,
|
|
.bNumEndpoints = 1,
|
|
.bInterfaceClass = USB_DEVICE_CLASS_HID,
|
|
.bInterfaceSubClass = HID_SUBCLASS_NONE,
|
|
.bInterfaceProtocol = HID_PROTOCOL_NONE,
|
|
},
|
|
.hid_data = {
|
|
.bLength = sizeof(struct usb_hid_descriptor),
|
|
.bDescriptorType = HID_DESCRIPTOR,
|
|
.bcdHid = 0x0101,
|
|
.bCountryCode = HID_COUNTRY_NOT_SUPPORTED,
|
|
.bNumDescriptors = 1, // Only a report descriptor
|
|
.bClassDescriptorType = REPORT_DESCRIPTOR,
|
|
.wClassDescriptorLength = sizeof(dataHidReport),
|
|
},
|
|
.ep2_in = {
|
|
.bLength = sizeof(struct usb_endpoint_descriptor),
|
|
.bDescriptorType = ENDPOINT_DESCRIPTOR,
|
|
.bEndpointAddress = USB_RQT_DEVICE_TO_HOST | 2, // 0x82
|
|
.bmAttributes = TRANSFER_TYPE_INT,
|
|
.wMaxPacketsize = 64,
|
|
.bInterval = LS_FS_INTERVAL_MS(1),
|
|
},
|
|
|
|
};
|
|
|
|
const struct usb_device_descriptor device_descriptor PROGMEM = {
|
|
.bLength = sizeof(struct usb_device_descriptor),
|
|
.bDescriptorType = DEVICE_DESCRIPTOR,
|
|
.bcdUSB = 0x0101,
|
|
.bDeviceClass = 0, // set at interface
|
|
.bDeviceSubClass = 0, // set at interface
|
|
.bDeviceProtocol = 0,
|
|
.bMaxPacketSize = 64,
|
|
.idVendor = 0x289B,
|
|
.idProduct = 0x0017,
|
|
.bcdDevice = 0x0300, // 1.0.0
|
|
.bNumConfigurations = 1,
|
|
.iManufacturer = 1,
|
|
.iProduct = 2,
|
|
.iSerialNumber = 3,
|
|
};
|
|
|
|
/** **/
|
|
|
|
static struct usb_parameters usb_params = {
|
|
.flags = USB_PARAM_FLAG_CONFDESC_PROGMEM |
|
|
USB_PARAM_FLAG_DEVDESC_PROGMEM |
|
|
USB_PARAM_FLAG_REPORTDESC_PROGMEM,
|
|
.devdesc = (PGM_VOID_P)&device_descriptor,
|
|
.configdesc = (PGM_VOID_P)&cfg0,
|
|
.configdesc_ttllen = sizeof(cfg0),
|
|
.num_strings = NUM_USB_STRINGS,
|
|
.strings = g_usb_strings,
|
|
|
|
.n_hid_interfaces = 2,
|
|
.hid_params = {
|
|
[0] = {
|
|
.reportdesc = gcn64_usbHidReportDescriptor,
|
|
.reportdesc_len = sizeof(gcn64_usbHidReportDescriptor),
|
|
.getReport = usbpad_hid_get_report,
|
|
.setReport = usbpad_hid_set_report,
|
|
},
|
|
[1] = {
|
|
.reportdesc = dataHidReport,
|
|
.reportdesc_len = sizeof(dataHidReport),
|
|
.getReport = hiddata_get_report,
|
|
.setReport = hiddata_set_report,
|
|
},
|
|
},
|
|
};
|
|
|
|
void hwinit(void)
|
|
{
|
|
/* PORTB
|
|
*
|
|
* 7: NC Output low
|
|
* 6: NC Output low
|
|
* 5: NC Output low
|
|
* 4: NC Output low
|
|
* 3: MISO Output low
|
|
* 2: MOSI Output low
|
|
* 1: SCK Output low
|
|
* 0: NC Output low
|
|
*/
|
|
PORTB = 0x00;
|
|
DDRB = 0xFF;
|
|
|
|
/* PORTC
|
|
*
|
|
* 7: NC Output low
|
|
* 6: NC Output low
|
|
* 5: NC Output low
|
|
* 4: NC Output low
|
|
* 3: (no such pin)
|
|
* 2: NC Output low
|
|
* 1: RESET (N/A: Reset input per fuses) (left floating)
|
|
* 0: XTAL2 (N/A: Crystal oscillator) (left floating)
|
|
*/
|
|
DDRC = 0xfc;
|
|
PORTC = 0x00;
|
|
|
|
/* PORTD
|
|
*
|
|
* 7: HWB Input (external pull-up)
|
|
* 6: NC Output low
|
|
* 5: NC Output low
|
|
* 4: NC Output low
|
|
* 3: IO3_MCU Input
|
|
* 2: IO2_MCU Input
|
|
* 1: IO1_MCU Input
|
|
* 0: IO0_MCU Input
|
|
*/
|
|
PORTD = 0x00;
|
|
DDRD = 0x70;
|
|
|
|
// System clock. External crystal is 16 Mhz and we want
|
|
// to run at max. speed.
|
|
CLKPR = 0x80;
|
|
CLKPR = 0x0; // Division factor of 1
|
|
PRR0 = 0;
|
|
PRR1 = 0;
|
|
}
|
|
|
|
|
|
#define NUM_PAD_TYPES 2
|
|
|
|
unsigned char current_pad_type = CONTROLLER_IS_ABSENT;
|
|
|
|
Gamepad *detectPad(void)
|
|
{
|
|
current_pad_type = gcn64_detectController();
|
|
|
|
switch (current_pad_type)
|
|
{
|
|
case CONTROLLER_IS_ABSENT:
|
|
case CONTROLLER_IS_UNKNOWN:
|
|
return NULL;
|
|
|
|
case CONTROLLER_IS_N64:
|
|
printf("Detected N64 controller\n");
|
|
return n64GetGamepad();
|
|
break;
|
|
|
|
case CONTROLLER_IS_GC:
|
|
printf("Detected GC controller\n");
|
|
return gamecubeGetGamepad();
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* Called after eeprom content is loaded. */
|
|
void eeprom_app_ready(void)
|
|
{
|
|
static wchar_t serial_from_eeprom[SERIAL_NUM_LEN+1];
|
|
int i;
|
|
|
|
for (i=0; i<SERIAL_NUM_LEN; i++) {
|
|
serial_from_eeprom[i] = g_eeprom_data.cfg.serial[i];
|
|
}
|
|
serial_from_eeprom[i] = 0;
|
|
g_usb_strings[USB_STRING_SERIAL_IDX] = serial_from_eeprom;
|
|
}
|
|
|
|
char g_polling_suspended = 0;
|
|
|
|
void pollDelay(void)
|
|
{
|
|
int i;
|
|
for (i=0; i<g_eeprom_data.cfg.poll_interval[0]; i++) {
|
|
_delay_ms(1);
|
|
}
|
|
}
|
|
|
|
#define STATE_WAIT_POLLTIME 0
|
|
#define STATE_POLL_PAD 1
|
|
#define STATE_WAIT_INTERRUPT_READY 2
|
|
#define STATE_TRANSMIT 3
|
|
|
|
int main(void)
|
|
{
|
|
Gamepad *pad = NULL;
|
|
gamepad_data pad_data;
|
|
unsigned char gamepad_vibrate = 0;
|
|
unsigned char state = STATE_WAIT_POLLTIME;
|
|
int error_count=0;
|
|
|
|
hwinit();
|
|
usart1_init();
|
|
eeprom_init();
|
|
intervaltimer_init();
|
|
|
|
/* Init the buffer with idle data */
|
|
usbpad_update(NULL);
|
|
|
|
sei();
|
|
usb_init(&usb_params);
|
|
|
|
while (1)
|
|
{
|
|
static char last_v = 0;
|
|
|
|
usb_doTasks();
|
|
hiddata_doTask();
|
|
|
|
switch(state)
|
|
{
|
|
case STATE_WAIT_POLLTIME:
|
|
if (!g_polling_suspended) {
|
|
intervaltimer_set(g_eeprom_data.cfg.poll_interval[0]);
|
|
if (intervaltimer_get()) {
|
|
state = STATE_POLL_PAD;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case STATE_POLL_PAD:
|
|
/* Try to auto-detect controller if none*/
|
|
if (!pad) {
|
|
pad = detectPad();
|
|
if (pad && (pad->hotplug)) {
|
|
// For gamecube, this make sure the next
|
|
// analog values we read become the center
|
|
// reference.
|
|
pad->hotplug();
|
|
}
|
|
}
|
|
if (pad) {
|
|
if (pad->update()) {
|
|
error_count++;
|
|
if (error_count > MAX_READ_ERRORS) {
|
|
pad = NULL;
|
|
state = STATE_WAIT_POLLTIME;
|
|
error_count = 0;
|
|
break;
|
|
}
|
|
} else {
|
|
error_count=0;
|
|
}
|
|
|
|
if (pad->changed()) {
|
|
|
|
pad->getReport(&pad_data);
|
|
usbpad_update(&pad_data);
|
|
state = STATE_WAIT_INTERRUPT_READY;
|
|
break;
|
|
}
|
|
} else {
|
|
/* Just make sure the gamepad state holds valid data
|
|
* to appear inactive (no buttons and axes in neutral) */
|
|
usbpad_update(NULL);
|
|
}
|
|
state = STATE_WAIT_POLLTIME;
|
|
break;
|
|
|
|
case STATE_WAIT_INTERRUPT_READY:
|
|
if (usb_interruptReady()) {
|
|
state = STATE_TRANSMIT;
|
|
}
|
|
break;
|
|
|
|
case STATE_TRANSMIT:
|
|
usb_interruptSend(usbpad_getReportBuffer(), usbpad_getReportSize());
|
|
state = STATE_WAIT_POLLTIME;
|
|
break;
|
|
}
|
|
|
|
gamepad_vibrate = usbpad_mustVibrate();
|
|
if (last_v != gamepad_vibrate) {
|
|
if (pad && pad->setVibration) {
|
|
pad->setVibration(gamepad_vibrate);
|
|
}
|
|
last_v = gamepad_vibrate;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|