mirror of
https://github.com/raphnet/gc_n64_usb-v3
synced 2024-11-13 12:45:02 -05:00
437 lines
10 KiB
C
437 lines
10 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 "usart1.h"
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#include "usb.h"
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#include "gamepad.h"
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#include "gcn64_protocol.h"
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#include "n64.h"
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
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#endif
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#ifndef LPSTR
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#define LPSTR(s) ((const PROGMEM wchar_t*)(s))
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#endif
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uint16_t hid_get_report(struct usb_request *rq, const uint8_t **dat);
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uint8_t hid_set_report(const struct usb_request *rq, const uint8_t *dat, uint16_t len);
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#include "reportdesc.c"
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const wchar_t *const g_usb_strings[] = {
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[0] = L"raphnet technologies", // 1 : Vendor
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[1] = L"GC/N64 to USB v3.0", // 2: Product
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[2] = L"123456", // 3 : Serial
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};
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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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};
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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 = 1,
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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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.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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};
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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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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 = ARRAY_SIZE(g_usb_strings),
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.strings = g_usb_strings,
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.reportdesc = gcn64_usbHidReportDescriptor,
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.reportdesc_len = sizeof(gcn64_usbHidReportDescriptor),
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.getReport = hid_get_report,
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.setReport = hid_set_report,
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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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static unsigned char hid_report_data[32];
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static unsigned char gamepad_report0[32];
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// Output Report IDs for various functions
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#define REPORT_SET_EFFECT 0x01
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#define REPORT_SET_PERIODIC 0x04
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#define REPORT_SET_CONSTANT_FORCE 0x05
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#define REPORT_EFFECT_OPERATION 0x0A
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#define REPORT_DISABLE_ACTUATORS 0x0C
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#define REPORT_PID_POOL 0x0D
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// Feature reports
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#define REPORT_CREATE_EFFECT 0x09
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// For the 'Usage Effect Operation' report
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#define EFFECT_OP_START 1
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#define EFFECT_OP_START_SOLO 2
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#define EFFECT_OP_STOP 3
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// Feature report
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#define PID_SIMULTANEOUS_MAX 3
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#define PID_BLOCK_LOAD_REPORT 2
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static volatile unsigned char gamepad_vibrate = 0; // output
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static unsigned char vibration_on = 0;
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static unsigned char constant_force = 0;
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static unsigned char magnitude = 0;
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static unsigned char _FFB_effect_index;
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#define LOOP_MAX 0xFFFF
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static unsigned int _loop_count;
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static void effect_loop()
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{
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if (_loop_count) {
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if (_loop_count != LOOP_MAX) {
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_loop_count--;
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}
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}
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}
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static void decideVibration(void)
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{
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if (!_loop_count)
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vibration_on = 0;
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if (!vibration_on) {
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gamepad_vibrate = 0;
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} else {
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if (constant_force > 0x7f) {
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gamepad_vibrate = 1;
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}
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if (magnitude > 0x7f) {
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gamepad_vibrate = 1;
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}
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}
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}
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uint16_t hid_get_report(struct usb_request *rq, const uint8_t **dat)
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{
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uint8_t report_id = (rq->wValue & 0xff);
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// USB HID 1.11 section 7.2.1 Get_Report
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// wValue high byte : report type
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// wValue low byte : report id
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switch (rq->wValue >> 8)
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{
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case HID_REPORT_TYPE_INPUT:
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{
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if (report_id == 1) { // Joystick
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// report_id = rq->wValue & 0xff
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// interface = rq->wIndex
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*dat = gamepad_report0;
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printf("Get joy report\r\n");
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return 9;
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} else if (report_id == 2) { // 2 : ES playing
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hid_report_data[0] = report_id;
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hid_report_data[1] = 0;
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hid_report_data[2] = _FFB_effect_index;
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printf("ES playing\r\n");
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*dat = hid_report_data;
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return 3;
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} else {
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printf("Get input report %d ??\r\n", rq->wValue & 0xff);
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}
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}
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break;
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case HID_REPORT_TYPE_FEATURE:
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if (report_id == PID_BLOCK_LOAD_REPORT) {
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hid_report_data[0] = report_id;
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hid_report_data[1] = 0x1;
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hid_report_data[2] = 0x1;
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hid_report_data[3] = 10;
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hid_report_data[4] = 10;
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printf("block load\r\n");
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*dat = hid_report_data;
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return 5;
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}
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else if (report_id == PID_SIMULTANEOUS_MAX) {
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hid_report_data[0] = report_id;
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// ROM Effect Block count
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hid_report_data[1] = 0x1;
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hid_report_data[2] = 0x1;
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// PID pool move report?
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hid_report_data[3] = 0xff;
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hid_report_data[4] = 1;
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printf("simultaneous max\r\n");
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*dat = hid_report_data;
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return 5;
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}
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else if (report_id == REPORT_CREATE_EFFECT) {
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hid_report_data[0] = report_id;
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hid_report_data[1] = 1;
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printf("create effect\r\n");
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*dat = hid_report_data;
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return 2;
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} else {
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printf("Unknown feature %d\r\n", rq->wValue & 0xff);
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}
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break;
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}
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printf("Unhandled hid get report type=0x%02x, rq=0x%02x, wVal=0x%04x, wLen=0x%04x\r\n", rq->bmRequestType, rq->bRequest, rq->wValue, rq->wLength);
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return 0;
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}
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uint8_t hid_set_report(const struct usb_request *rq, const uint8_t *data, uint16_t len)
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{
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if (len < 1) {
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printf("shrt\n");
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return -1;
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}
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if ((rq->wValue >> 8) == HID_REPORT_TYPE_OUTPUT) {
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switch(data[0])
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{
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case REPORT_DISABLE_ACTUATORS:
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printf("disable actuators\r\n");
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break;
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case REPORT_PID_POOL:
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printf("pid pool\r\n");
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break;
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case REPORT_SET_EFFECT:
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_FFB_effect_index = data[1];
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printf("set effect %d\n", data[1]);
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break;
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case REPORT_SET_PERIODIC:
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magnitude = data[2];
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decideVibration();
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printf("periodic mag: %d", data[2]);
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break;
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case REPORT_SET_CONSTANT_FORCE:
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if (data[1] == 1) {
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constant_force = data[2];
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decideVibration();
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printf("Constant force");
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}
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break;
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case REPORT_EFFECT_OPERATION:
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if (len != 4)
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return -1;
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printf("EFFECT OP\n");
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/* Byte 0 : report ID
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* Byte 1 : bit 7=rom flag, bits 6-0=effect block index
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* Byte 2 : Effect operation
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* Byte 3 : Loop count */
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_loop_count = data[3]<<3;
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switch(data[1] & 0x7F) // Effect block index
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{
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case 1: // constant force
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case 3: // square
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case 4: // sine
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switch (data[2]) // effect operation
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{
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case EFFECT_OP_START:
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vibration_on = 1;
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decideVibration();
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break;
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case EFFECT_OP_START_SOLO:
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vibration_on = 1;
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decideVibration();
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break;
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case EFFECT_OP_STOP:
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vibration_on = 0;
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decideVibration();
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break;
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}
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break;
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// TODO : should probably drop these from the descriptor since they are
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case 2: // ramp
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case 5: // triangle
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case 6: // sawtooth up
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case 7: // sawtooth down
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case 8: // spring
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case 9: // damper
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case 10: // inertia
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case 11: // friction
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case 12: // custom force data
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printf("Ununsed effect %d\n", data[1] & 0x7F);
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break;
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}
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break;
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default:
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printf("Set output report 0x%02x\r\n", data[0]);
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}
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}
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else if ((rq->wValue >> 8) == HID_REPORT_TYPE_FEATURE) {
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switch(data[0])
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{
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case REPORT_CREATE_EFFECT:
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_FFB_effect_index = data[1];
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printf("create effect %d\n", data[1]);
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break;
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default:
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printf("What?\n");
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}
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}
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else {
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printf("impossible\n");
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}
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return 0;
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}
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int main(void)
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{
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Gamepad *pad = NULL;
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hwinit();
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usart1_init();
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gcn64protocol_hwinit();
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pad = n64GetGamepad();
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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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_delay_ms(5);
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effect_loop();
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decideVibration();
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if (last_v != gamepad_vibrate) {
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if (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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pad->update();
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if (pad->changed(1)) {
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int report_size;
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report_size = pad->buildReport(gamepad_report0, 1);
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usb_interruptSend(gamepad_report0, report_size);
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}
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}
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return 0;
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}
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