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usb_multi_x360.c
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usb_multi_x360.c
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/*****************************f*************************************************
* The MIT License
*
* Copyright (c) 2011 LeafLabs LLC.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*****************************************************************************/
/**
* FIXME: this works on the STM32F1 USB peripherals, and probably no
* place else. Nonportable bits really need to be factored out, and
* the result made cleaner.
*/
#include "usb_generic.h"
#include "usb_x360_generic.h"
#include "usb_multi_x360.h"
#include <string.h>
#include <libmaple/usb.h>
#include <libmaple/delay.h>
/* Private headers */
#include "usb_lib_globals.h"
#include "usb_reg_map.h"
/* usb_lib headers */
#include "usb_type.h"
#include "usb_core.h"
#include "usb_def.h"
#define NUM_INTERFACES 1
#define NUM_ENDPOINTS 2
#define USB_ENDPOINT_IN(addr) ((addr) | 0x80)
#define HID_ENDPOINT_INT 1
#define HID_DESCRIPTOR_TYPE 0x21
#define REPORT_DESCRIPTOR 0x22
typedef struct
{
uint8_t len; // 9
uint8_t dtype; // 0x21
uint8_t versionL; // 0x101
uint8_t versionH; // 0x101
uint8_t country;
uint8_t numDesc;
uint8_t desctype; // 0x22 report
uint8_t descLenL;
uint8_t descLenH;
} HIDDescriptor;
/*
* Descriptors
*/
#if 0
const uint8_t hid_report_descriptor[] = {
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x05, // USAGE (Game Pad)
0xa1, 0x01, // COLLECTION (Application)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x3a, // USAGE (Counted Buffer)
0xa1, 0x02, // COLLECTION (Logical)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x02, // REPORT_COUNT (2)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x3f, // USAGE (Reserved)
0x09, 0x3b, // USAGE (Byte Count)
0x81, 0x01, // INPUT (Cnst,Ary,Abs)
0x75, 0x01, // REPORT_SIZE (1)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x35, 0x00, // PHYSICAL_MINIMUM (0)
0x45, 0x01, // PHYSICAL_MAXIMUM (1)
0x95, 0x04, // REPORT_COUNT (4)
0x05, 0x09, // USAGE_PAGE (Button)
0x19, 0x0c, // USAGE_MINIMUM (Button 12)
0x29, 0x0f, // USAGE_MAXIMUM (Button 15)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x75, 0x01, // REPORT_SIZE (1)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x35, 0x00, // PHYSICAL_MINIMUM (0)
0x45, 0x01, // PHYSICAL_MAXIMUM (1)
0x95, 0x04, // REPORT_COUNT (4)
0x05, 0x09, // USAGE_PAGE (Button)
0x09, 0x09, // USAGE (Button 9)
0x09, 0x0a, // USAGE (Button 10)
0x09, 0x07, // USAGE (Button 7)
0x09, 0x08, // USAGE (Button 8)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x75, 0x01, // REPORT_SIZE (1)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x35, 0x00, // PHYSICAL_MINIMUM (0)
0x45, 0x01, // PHYSICAL_MAXIMUM (1)
0x95, 0x03, // REPORT_COUNT (3)
0x05, 0x09, // USAGE_PAGE (Button)
0x09, 0x05, // USAGE (Button 5)
0x09, 0x06, // USAGE (Button 6)
0x09, 0x0b, // USAGE (Button 11)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x75, 0x01, // REPORT_SIZE (1)
0x95, 0x01, // REPORT_COUNT (1)
0x81, 0x01, // INPUT (Cnst,Ary,Abs)
0x75, 0x01, // REPORT_SIZE (1)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x35, 0x00, // PHYSICAL_MINIMUM (0)
0x45, 0x01, // PHYSICAL_MAXIMUM (1)
0x95, 0x04, // REPORT_COUNT (4)
0x05, 0x09, // USAGE_PAGE (Button)
0x19, 0x01, // USAGE_MINIMUM (Button 1)
0x29, 0x04, // USAGE_MAXIMUM (Button 4)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x75, 0x08, // REPORT_SIZE (8)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x26, 0xff, 0x00, // LOGICAL_MAXIMUM (255)
0x35, 0x00, // PHYSICAL_MINIMUM (0)
0x46, 0xff, 0x00, // PHYSICAL_MAXIMUM (255)
0x95, 0x02, // REPORT_COUNT (2)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x32, // USAGE (Z)
0x09, 0x35, // USAGE (Rz)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x75, 0x10, // REPORT_SIZE (16)
0x16, 0x00, 0x80, // LOGICAL_MINIMUM (-32768)
0x26, 0xff, 0x7f, // LOGICAL_MAXIMUM (32767)
0x36, 0x00, 0x80, // PHYSICAL_MINIMUM (-32768)
0x46, 0xff, 0x7f, // PHYSICAL_MAXIMUM (32767)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x01, // USAGE (Pointer)
0xa1, 0x00, // COLLECTION (Physical)
0x95, 0x02, // REPORT_COUNT (2)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x30, // USAGE (X)
0x09, 0x31, // USAGE (Y)
0x81, 0x02, // INPUT (Data,Var,Abs)
0xc0, // END_COLLECTION
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x01, // USAGE (Pointer)
0xa1, 0x00, // COLLECTION (Physical)
0x95, 0x02, // REPORT_COUNT (2)
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x33, // USAGE (Rx)
0x09, 0x34, // USAGE (Ry)
0x81, 0x02, // INPUT (Data,Var,Abs)
0xc0, // END_COLLECTION
0xc0, // END_COLLECTION
0xc0 // END_COLLECTION
};
#endif
typedef struct {
// usb_descriptor_config_header Config_Header;
usb_descriptor_interface HID_Interface;
uint8 unknown_descriptor1[17];
usb_descriptor_endpoint DataInEndpoint;
usb_descriptor_endpoint DataOutEndpoint;
} __packed usb_descriptor_config;
#define MAX_POWER (100 >> 1)
static const usb_descriptor_config X360Descriptor_Config =
{
#if 0
.Config_Header = {
.bLength = sizeof(usb_descriptor_config_header),
.bDescriptorType = USB_DESCRIPTOR_TYPE_CONFIGURATION,
.wTotalLength = sizeof(usb_descriptor_config),//0,
.bNumInterfaces = 0x01,
.bConfigurationValue = 0x01,
.iConfiguration = 0x00,
.bmAttributes = (USB_CONFIG_ATTR_BUSPOWERED |
USB_CONFIG_ATTR_SELF_POWERED),
.bMaxPower = MAX_POWER,
},
#endif
.HID_Interface = {
.bLength = sizeof(usb_descriptor_interface),
.bDescriptorType = USB_DESCRIPTOR_TYPE_INTERFACE,
.bInterfaceNumber = X360_INTERFACE_OFFSET, // PATCH
.bAlternateSetting = 0x00,
.bNumEndpoints = 0x02,
.bInterfaceClass = 0xFF,
.bInterfaceSubClass = 0x5D,
.bInterfaceProtocol = 0x01,
.iInterface = 0x00,
},
.unknown_descriptor1 = {
17,33,0,1,1,37,129/* PATCH 0x80 | USB_X360_TX_ENDP */,20,0,0,0,0,19,2/* was 2, now PATCH: USB_X360_RX_ENDP */,8,0,0,
},
.DataInEndpoint = {
.bLength = sizeof(usb_descriptor_endpoint),
.bDescriptorType = USB_DESCRIPTOR_TYPE_ENDPOINT,
.bEndpointAddress = (USB_DESCRIPTOR_ENDPOINT_IN | 0),//PATCH: USB_X360_TX_ENDP
.bmAttributes = USB_EP_TYPE_INTERRUPT,
.wMaxPacketSize = 0x20,
.bInterval = 4,
},
.DataOutEndpoint = {
.bLength = sizeof(usb_descriptor_endpoint),
.bDescriptorType = USB_DESCRIPTOR_TYPE_ENDPOINT,
.bEndpointAddress = (USB_DESCRIPTOR_ENDPOINT_OUT | 0),//PATCH: USB_X360_RX_ENDP
.bmAttributes = USB_EP_TYPE_INTERRUPT,
.wMaxPacketSize = 0x20,
.bInterval = 8,
},
};
#define OUT_BYTE(s,v) out[(uint8*)&(s.v)-(uint8*)&s]
#define OUT_16(s,v) *(uint16_t*)&OUT_BYTE(s,v) // OK on Cortex which can handle unaligned writes
static void getMultiX360PartDescriptor(uint8* out) {
for(uint32 i=0; i<x360_num_controllers; i++) {
memcpy(out, &X360Descriptor_Config, sizeof(X360Descriptor_Config));
// patch to reflect where the part goes in the descriptor
OUT_BYTE(X360Descriptor_Config, HID_Interface.bInterfaceNumber) += usbX360Part.startInterface+NUM_INTERFACES*i;
uint8 rx_endp = USB_X360_RX_ENDP(i);
uint8 tx_endp = USB_X360_TX_ENDP(i);
OUT_BYTE(X360Descriptor_Config, DataOutEndpoint.bEndpointAddress) += rx_endp;
OUT_BYTE(X360Descriptor_Config, DataInEndpoint.bEndpointAddress) += tx_endp;
OUT_BYTE(X360Descriptor_Config, unknown_descriptor1[6]) = 0x80 | tx_endp;
OUT_BYTE(X360Descriptor_Config, unknown_descriptor1[13]) = rx_endp;
out += sizeof(X360Descriptor_Config);
}
}
void usb_multi_x360_initialize_controller_data(uint32 _numControllers, uint8* buffers) {
x360_generic_initialize_controller_data(_numControllers, buffers);
usbX360Part.getPartDescriptor = getMultiX360PartDescriptor;
usbX360Part.descriptorSize = sizeof(X360Descriptor_Config) * x360_num_controllers;
}