mirror of
https://github.com/raphnet/gc_n64_usb-v3
synced 2024-12-22 07:18:52 -05:00
360 lines
8.1 KiB
C
360 lines
8.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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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 "main.h"
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#include "util.h"
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#include "usart1.h"
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#include "usb.h"
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#include "gamepads.h"
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#include "bootloader.h"
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#include "gcn64_protocol.h"
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#include "n64.h"
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#include "gamecube.h"
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#include "usbpad.h"
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#include "eeprom.h"
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#include "hiddata.h"
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#include "usbstrings.h"
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#include "intervaltimer.h"
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/* Those .c files are included rather than linked for we
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* want the sizeof() operator to work on the arrays */
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#include "reportdesc.c"
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#include "dataHidReport.c"
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#define MAX_READ_ERRORS 30
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struct cfg0 {
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struct usb_configuration_descriptor configdesc;
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struct usb_interface_descriptor interface;
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struct usb_hid_descriptor hid;
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struct usb_endpoint_descriptor ep1_in;
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struct usb_interface_descriptor interface_admin;
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struct usb_hid_descriptor hid_data;
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struct usb_endpoint_descriptor ep2_in;
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};
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static const struct cfg0 cfg0 PROGMEM = {
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.configdesc = {
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.bLength = sizeof(struct usb_configuration_descriptor),
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.bDescriptorType = CONFIGURATION_DESCRIPTOR,
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.wTotalLength = sizeof(cfg0), // includes all descriptors returned together
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.bNumInterfaces = 2,
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.bConfigurationValue = 1,
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.bmAttributes = CFG_DESC_ATTR_RESERVED, // set Self-powred and remote-wakeup here if needed.
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.bMaxPower = 25, // for 50mA
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},
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// Main interface, HID
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.interface = {
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.bLength = sizeof(struct usb_interface_descriptor),
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.bDescriptorType = INTERFACE_DESCRIPTOR,
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.bInterfaceNumber = 0,
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.bAlternateSetting = 0,
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.bNumEndpoints = 1,
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.bInterfaceClass = USB_DEVICE_CLASS_HID,
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.bInterfaceSubClass = HID_SUBCLASS_NONE,
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.bInterfaceProtocol = HID_PROTOCOL_NONE,
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},
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.hid = {
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.bLength = sizeof(struct usb_hid_descriptor),
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.bDescriptorType = HID_DESCRIPTOR,
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.bcdHid = 0x0101,
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.bCountryCode = HID_COUNTRY_NOT_SUPPORTED,
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.bNumDescriptors = 1, // Only a report descriptor
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.bClassDescriptorType = REPORT_DESCRIPTOR,
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.wClassDescriptorLength = sizeof(gcn64_usbHidReportDescriptor),
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},
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.ep1_in = {
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.bLength = sizeof(struct usb_endpoint_descriptor),
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.bDescriptorType = ENDPOINT_DESCRIPTOR,
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.bEndpointAddress = USB_RQT_DEVICE_TO_HOST | 1, // 0x81
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.bmAttributes = TRANSFER_TYPE_INT,
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.wMaxPacketsize = 64,
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.bInterval = LS_FS_INTERVAL_MS(1),
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},
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// Second HID interface for config and update
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.interface_admin = {
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.bLength = sizeof(struct usb_interface_descriptor),
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.bDescriptorType = INTERFACE_DESCRIPTOR,
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.bInterfaceNumber = 1,
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.bAlternateSetting = 0,
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.bNumEndpoints = 1,
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.bInterfaceClass = USB_DEVICE_CLASS_HID,
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.bInterfaceSubClass = HID_SUBCLASS_NONE,
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.bInterfaceProtocol = HID_PROTOCOL_NONE,
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},
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.hid_data = {
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.bLength = sizeof(struct usb_hid_descriptor),
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.bDescriptorType = HID_DESCRIPTOR,
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.bcdHid = 0x0101,
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.bCountryCode = HID_COUNTRY_NOT_SUPPORTED,
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.bNumDescriptors = 1, // Only a report descriptor
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.bClassDescriptorType = REPORT_DESCRIPTOR,
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.wClassDescriptorLength = sizeof(dataHidReport),
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},
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.ep2_in = {
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.bLength = sizeof(struct usb_endpoint_descriptor),
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.bDescriptorType = ENDPOINT_DESCRIPTOR,
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.bEndpointAddress = USB_RQT_DEVICE_TO_HOST | 2, // 0x82
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.bmAttributes = TRANSFER_TYPE_INT,
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.wMaxPacketsize = 64,
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.bInterval = LS_FS_INTERVAL_MS(1),
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},
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};
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const struct usb_device_descriptor device_descriptor PROGMEM = {
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.bLength = sizeof(struct usb_device_descriptor),
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.bDescriptorType = DEVICE_DESCRIPTOR,
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.bcdUSB = 0x0101,
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.bDeviceClass = 0, // set at interface
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.bDeviceSubClass = 0, // set at interface
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.bDeviceProtocol = 0,
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.bMaxPacketSize = 64,
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.idVendor = 0x289B,
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.idProduct = 0x0017,
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.bcdDevice = 0x0300, // 1.0.0
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.bNumConfigurations = 1,
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.iManufacturer = 1,
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.iProduct = 2,
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.iSerialNumber = 3,
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};
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/** **/
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static struct usb_parameters usb_params = {
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.flags = USB_PARAM_FLAG_CONFDESC_PROGMEM |
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USB_PARAM_FLAG_DEVDESC_PROGMEM |
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USB_PARAM_FLAG_REPORTDESC_PROGMEM,
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.devdesc = (PGM_VOID_P)&device_descriptor,
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.configdesc = (PGM_VOID_P)&cfg0,
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.configdesc_ttllen = sizeof(cfg0),
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.num_strings = NUM_USB_STRINGS,
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.strings = g_usb_strings,
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.n_hid_interfaces = 2,
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.hid_params = {
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[0] = {
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.reportdesc = gcn64_usbHidReportDescriptor,
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.reportdesc_len = sizeof(gcn64_usbHidReportDescriptor),
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.getReport = usbpad_hid_get_report,
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.setReport = usbpad_hid_set_report,
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},
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[1] = {
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.reportdesc = dataHidReport,
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.reportdesc_len = sizeof(dataHidReport),
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.getReport = hiddata_get_report,
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.setReport = hiddata_set_report,
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},
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},
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};
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void hwinit(void)
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{
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/* PORTB
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*
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* 7: NC Output low
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* 6: NC Output low
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* 5: NC Output low
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* 4: NC Output low
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* 3: MISO Output low
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* 2: MOSI Output low
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* 1: SCK Output low
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* 0: NC Output low
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*/
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PORTB = 0x00;
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DDRB = 0xFF;
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/* PORTC
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*
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* 7: NC Output low
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* 6: NC Output low
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* 5: NC Output low
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* 4: NC Output low
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* 3: (no such pin)
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* 2: NC Output low
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* 1: RESET (N/A: Reset input per fuses)
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* 0: XTAL2 (N/A: Crystal oscillator)
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*/
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PORTB = 0x00;
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DDRB = 0xff;
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/* PORTD
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*
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* 7: HWB Input (external pull-up)
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* 6: NC Output low
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* 5: NC Output low
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* 4: NC Output low
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* 3: IO3_MCU Input
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* 2: IO2_MCU Input
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* 1: IO1_MCU Input
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* 0: IO0_MCU Input
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*/
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PORTD = 0x00;
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DDRD = 0x70;
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// System clock. External crystal is 16 Mhz and we want
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// to run at max. speed.
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CLKPR = 0x80;
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CLKPR = 0x0; // Division factor of 1
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PRR0 = 0;
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PRR1 = 0;
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}
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#define NUM_PAD_TYPES 2
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unsigned char current_pad_type = CONTROLLER_IS_ABSENT;
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Gamepad *detectPad(void)
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{
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current_pad_type = gcn64_detectController();
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switch (current_pad_type)
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{
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case CONTROLLER_IS_ABSENT:
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case CONTROLLER_IS_UNKNOWN:
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return NULL;
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case CONTROLLER_IS_N64:
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printf("Detected N64 controller\n");
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return n64GetGamepad();
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break;
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case CONTROLLER_IS_GC:
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printf("Detected GC controller\n");
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return gamecubeGetGamepad();
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}
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return NULL;
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}
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/* Called after eeprom content is loaded. */
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void eeprom_app_ready(void)
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{
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static wchar_t serial_from_eeprom[SERIAL_NUM_LEN+1];
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int i;
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for (i=0; i<SERIAL_NUM_LEN; i++) {
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serial_from_eeprom[i] = g_eeprom_data.cfg.serial[i];
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}
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serial_from_eeprom[i] = 0;
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g_usb_strings[USB_STRING_SERIAL_IDX] = serial_from_eeprom;
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}
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char g_polling_suspended = 0;
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void pollDelay(void)
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{
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int i;
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for (i=0; i<g_eeprom_data.cfg.poll_interval[0]; i++) {
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_delay_ms(1);
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}
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}
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#define STATE_WAIT_POLLTIME 0
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#define STATE_POLL_PAD 1
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#define STATE_WAIT_INTERRUPT_READY 2
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#define STATE_TRANSMIT 3
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int main(void)
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{
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Gamepad *pad = NULL;
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gamepad_data pad_data;
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unsigned char gamepad_vibrate = 0;
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unsigned char state = STATE_WAIT_POLLTIME;
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int error_count=0;
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hwinit();
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usart1_init();
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eeprom_init();
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intervaltimer_init();
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/* Init the buffer with idle data */
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usbpad_update(NULL);
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sei();
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usb_init(&usb_params);
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while (1)
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{
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static char last_v = 0;
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usb_doTasks();
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hiddata_doTask();
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switch(state)
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{
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case STATE_WAIT_POLLTIME:
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if (!g_polling_suspended) {
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intervaltimer_set(g_eeprom_data.cfg.poll_interval[0]);
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if (intervaltimer_get()) {
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state = STATE_POLL_PAD;
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}
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}
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break;
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case STATE_POLL_PAD:
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/* Try to auto-detect controller if none*/
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if (!pad) {
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pad = detectPad();
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}
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if (pad) {
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if (pad->update()) {
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error_count++;
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if (error_count > MAX_READ_ERRORS) {
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pad = NULL;
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state = STATE_WAIT_POLLTIME;
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error_count = 0;
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break;
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}
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} else {
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error_count=0;
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}
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if (pad->changed()) {
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pad->getReport(&pad_data);
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usbpad_update(&pad_data);
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state = STATE_WAIT_INTERRUPT_READY;
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break;
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}
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} else {
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/* Just make sure the gamepad state holds valid data
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* to appear inactive (no buttons and axes in neutral) */
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usbpad_update(NULL);
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}
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state = STATE_WAIT_POLLTIME;
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break;
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case STATE_WAIT_INTERRUPT_READY:
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if (usb_interruptReady()) {
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state = STATE_TRANSMIT;
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}
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break;
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case STATE_TRANSMIT:
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usb_interruptSend(usbpad_getReportBuffer(), usbpad_getReportSize());
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state = STATE_WAIT_POLLTIME;
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break;
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}
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gamepad_vibrate = usbpad_mustVibrate();
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if (last_v != gamepad_vibrate) {
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if (pad && pad->setVibration) {
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pad->setVibration(gamepad_vibrate);
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}
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last_v = gamepad_vibrate;
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}
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}
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return 0;
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}
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