--- /dev/null
+/**
+ * Copyright (C) 2009 Ubixum, Inc.
+ * Copyright (C) 2015 Jochen Hoenicke
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ **/
+
+#include <fx2macros.h>
+#include <fx2ints.h>
+#include <autovector.h>
+#include <delay.h>
+#include <setupdat.h>
+
+#ifdef DEBUG_FIRMWARE
+#include <serial.h>
+#include <stdio.h>
+#else
+#define printf(...)
+#endif
+
+volatile WORD ledcounter = 0;
+
+
+volatile __bit dosud=FALSE;
+volatile __bit dosuspend=FALSE;
+
+// custom functions
+extern void main_loop();
+extern void main_init();
+
+void main() {
+
+ SETCPUFREQ(CLK_12M); // save energy
+
+ main_init();
+
+ // set up interrupts.
+ USE_USB_INTS();
+
+ ENABLE_SUDAV();
+ ENABLE_USBRESET();
+ ENABLE_HISPEED();
+ ENABLE_SUSPEND();
+ ENABLE_RESUME();
+
+ EA=1;
+
+ // init timer2
+ RCAP2L = -500 & 0xff;
+ RCAP2H = (-500 >> 8) & 0xff;
+ T2CON = 0;
+ ET2 = 1;
+ TR2 = 1;
+
+// iic files (c2 load) don't need to renumerate/delay
+// trm 3.6
+#ifndef NORENUM
+ RENUMERATE();
+#else
+ USBCS &= ~bmDISCON;
+#endif
+
+ PORTCCFG = 0;
+ PORTACFG = 0;
+ OEC = 0xff;
+ OEA = 0x80;
+
+ while(TRUE) {
+
+ main_loop();
+
+ if (dosud) {
+ dosud=FALSE;
+ handle_setupdata();
+ }
+
+ if (dosuspend) {
+ dosuspend=FALSE;
+ do {
+ printf ( "I'm going to Suspend.\n" );
+ WAKEUPCS |= bmWU|bmWU2; // make sure ext wakeups are cleared
+ SUSPEND=1;
+ PCON |= 1;
+ __asm
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ __endasm;
+ } while ( !remote_wakeup_allowed && REMOTE_WAKEUP());
+ printf ( "I'm going to wake up.\n");
+
+ // resume
+ // trm 6.4
+ if ( REMOTE_WAKEUP() ) {
+ delay(5);
+ USBCS |= bmSIGRESUME;
+ delay(15);
+ USBCS &= ~bmSIGRESUME;
+ }
+
+ }
+
+ } // end while
+
+} // end main
+
+void resume_isr() __interrupt RESUME_ISR {
+ CLEAR_RESUME();
+}
+
+void sudav_isr() __interrupt SUDAV_ISR {
+ dosud=TRUE;
+ CLEAR_SUDAV();
+}
+void usbreset_isr() __interrupt USBRESET_ISR {
+ handle_hispeed(FALSE);
+ CLEAR_USBRESET();
+}
+void hispeed_isr() __interrupt HISPEED_ISR {
+ handle_hispeed(TRUE);
+ CLEAR_HISPEED();
+}
+
+void suspend_isr() __interrupt SUSPEND_ISR {
+ dosuspend=TRUE;
+ CLEAR_SUSPEND();
+}
+
+void timer2_isr() __interrupt TF2_ISR {
+ PA7 = !PA7;
+ if (ledcounter) {
+ if (--ledcounter == 0) {
+ // clear LED
+ PC0 = 1;
+ PC1 = 1;
+ }
+ }
+ TF2 = 0;
+}
+/**
+ * Copyright (C) 2009 Ubixum, Inc.
+ * Copyright (C) 2015 Jochen Hoenicke
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ **/
+
+#include <fx2macros.h>
+#include <delay.h>
+
+#ifdef DEBUG_FIRMWARE
+#include <stdio.h>
+#else
+#define printf(...)
+#endif
+
+// change to support as many interfaces as you need
+BYTE altiface = 0; // alt interface
+extern volatile WORD ledcounter;
+
+
+
+/* This sets three bits for each channel, one channel at a time.
+ * For channel 0 we want to set bits 5, 6 & 7
+ * For channel 1 we want to set bits 2, 3 & 4
+ *
+ * We convert the input values that are strange due to original firmware code into the value of the three bits as follows:
+ * val -> bits
+ * 1 -> 010b
+ * 2 -> 001b
+ * 5 -> 000b
+ * 10 -> 011b
+ *
+ * The third bit is always zero since there are only four outputs connected in the serial selector chip.
+ *
+ * The multiplication of the converted value by 0x24 sets the relevant bits in
+ * both channels and then we mask it out to only affect the channel currently
+ * requested.
+ */
+BOOL set_voltage(BYTE channel, BYTE val)
+{
+ BYTE bits, mask;
+ switch (val) {
+ case 1:
+ bits = 0x24 * 2;
+ break;
+ case 2:
+ bits = 0x24 * 1;
+ break;
+ case 5:
+ bits = 0x24 * 0;
+ break;
+ case 10:
+ bits = 0x24 * 3;
+ break;
+ default:
+ return FALSE;
+ }
+
+ mask = channel ? 0xe0 : 0x1c;
+ IOC = (IOC & ~mask) | (bits & mask);
+ return TRUE;
+}
+
+BOOL set_numchannels(BYTE numchannels)
+{
+ if (numchannels == 1 || numchannels == 2) {
+ BYTE fifocfg = 7 + numchannels;
+ EP2FIFOCFG = fifocfg;
+ EP6FIFOCFG = fifocfg;
+ return TRUE;
+ }
+ return FALSE;
+}
+
+void clear_fifo()
+{
+ GPIFABORT = 0xff;
+ SYNCDELAY3;
+ FIFORESET = 0x80;
+ SYNCDELAY3;
+ FIFORESET = 0x82;
+ SYNCDELAY3;
+ FIFORESET = 0x86;
+ SYNCDELAY3;
+ FIFORESET = 0;
+}
+
+void stop_sampling()
+{
+ GPIFABORT = 0xff;
+ SYNCDELAY3;
+ if (altiface == 0) {
+ INPKTEND = 6;
+ } else {
+ INPKTEND = 2;
+ }
+}
+
+void start_sampling()
+{
+ int i;
+ clear_fifo();
+
+ for (i = 0; i < 1000; i++);
+ while (!(GPIFTRIG & 0x80)) {
+ ;
+ }
+ SYNCDELAY3;
+ GPIFTCB1 = 0x28;
+ SYNCDELAY3;
+ GPIFTCB0 = 0;
+ if (altiface == 0)
+ GPIFTRIG = 6;
+ else
+ GPIFTRIG = 4;
+
+ // set green led
+ // don't clear led
+ ledcounter = 0;
+ PC0 = 1;
+ PC1 = 0;
+}
+
+extern __code BYTE highspd_dscr;
+extern __code BYTE fullspd_dscr;
+void select_interface(BYTE alt)
+{
+ const BYTE *pPacketSize = (USBCS & bmHSM ? &highspd_dscr : &fullspd_dscr)
+ + (9 + 16*alt + 9 + 4);
+ altiface = alt;
+ if (alt == 0) {
+ // bulk on port 6
+ EP2CFG = 0x00;
+ EP6CFG = 0xe0;
+ EP6GPIFFLGSEL = 1;
+
+ EP6AUTOINLENL = pPacketSize[0];
+ EP6AUTOINLENH = pPacketSize[1];
+ } else {
+ // iso on port 2
+ EP2CFG = 0xd8;
+ EP6CFG = 0x00;
+ EP2GPIFFLGSEL = 1;
+
+ EP2AUTOINLENL = pPacketSize[0];
+ EP2AUTOINLENH = pPacketSize[1] & 0x7;
+ EP2ISOINPKTS = (pPacketSize[1] >> 3) + 1;
+ }
+}
+
+const struct samplerate_info {
+ BYTE rate;
+ BYTE wait0;
+ BYTE wait1;
+ BYTE opc0;
+ BYTE opc1;
+ BYTE out0;
+ BYTE ifcfg;
+} samplerates[] = {
+ { 48,0x80, 0, 3, 0, 0x00, 0xea },
+ { 30,0x80, 0, 3, 0, 0x00, 0xaa },
+ { 24, 1, 0, 2, 1, 0x40, 0xca },
+ { 16, 1, 1, 2, 0, 0x40, 0xca },
+ { 12, 2, 1, 2, 0, 0x40, 0xca },
+ { 8, 3, 2, 2, 0, 0x40, 0xca },
+ { 4, 6, 5, 2, 0, 0x40, 0xca },
+ { 2, 12, 11, 2, 0, 0x40, 0xca },
+ { 1, 24, 23, 2, 0, 0x40, 0xca },
+ { 50, 48, 47, 2, 0, 0x40, 0xca },
+ { 20, 120, 119, 2, 0, 0x40, 0xca },
+ { 10, 240, 239, 2, 0, 0x40, 0xca }
+};
+
+BOOL set_samplerate(BYTE rate)
+{
+ BYTE i = 0;
+ while (samplerates[i].rate != rate) {
+ i++;
+ if (i == sizeof(samplerates)/sizeof(samplerates[0]))
+ return FALSE;
+ }
+
+ IFCONFIG = samplerates[i].ifcfg;
+
+ AUTOPTRSETUP = 7;
+ AUTOPTRH2 = 0xE4;
+ AUTOPTRL2 = 0x00;
+
+ /* The program for low-speed, e.g. 1 MHz, is
+ * wait 24, CTL2=0, FIFO
+ * wait 23, CTL2=1
+ * jump 0, CTL2=1
+ *
+ * The program for 24 MHz is
+ * wait 1, CTL2=0, FIFO
+ * jump 0, CTL2=1
+ *
+ * The program for 30/48 MHz is:
+ * jump 0, CTL2=Z, FIFO, LOOP
+ */
+
+ EXTAUTODAT2 = samplerates[i].wait0;
+ EXTAUTODAT2 = samplerates[i].wait1;
+ EXTAUTODAT2 = 1;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+
+ EXTAUTODAT2 = samplerates[i].opc0;
+ EXTAUTODAT2 = samplerates[i].opc1;
+ EXTAUTODAT2 = 1;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+
+ EXTAUTODAT2 = samplerates[i].out0;
+ EXTAUTODAT2 = 0x44;
+ EXTAUTODAT2 = 0x44;
+ EXTAUTODAT2 = 0x00;
+ EXTAUTODAT2 = 0x00;
+ EXTAUTODAT2 = 0x00;
+ EXTAUTODAT2 = 0x00;
+ EXTAUTODAT2 = 0x00;
+
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+ EXTAUTODAT2 = 0;
+
+ for (i = 0; i < 96; i++)
+ EXTAUTODAT2 = 0;
+ return TRUE;
+}
+
+BOOL handle_get_descriptor() {
+ return FALSE;
+}
+
+//************************** Configuration Handlers *****************************
+
+// set *alt_ifc to the current alt interface for ifc
+BOOL handle_get_interface(BYTE ifc, BYTE* alt_ifc) {
+ (void) ifc; // ignore unused parameter
+ *alt_ifc=altiface;
+ return TRUE;
+}
+// return TRUE if you set the interface requested
+// NOTE this function should reconfigure and reset the endpoints
+// according to the interface descriptors you provided.
+BOOL handle_set_interface(BYTE ifc,BYTE alt_ifc) {
+ printf ( "Set Interface.\n" );
+ if (ifc == 0) {
+ select_interface(alt_ifc);
+ }
+ return TRUE;
+}
+
+// handle getting and setting the configuration
+// 1 is the default. We don't support multiple configurations.
+BYTE handle_get_configuration() {
+ return 0;
+}
+
+BOOL handle_set_configuration(BYTE cfg) {
+ (void) cfg; // ignore unused parameter
+ return TRUE;
+}
+
+
+//******************* VENDOR COMMAND HANDLERS **************************
+
+BOOL handle_vendorcommand(BYTE cmd) {
+ stop_sampling();
+ // Set Red LED
+ PC0 = 0;
+ PC1 = 1;
+ ledcounter = 1000;
+ switch (cmd) {
+ case 0xe0:
+ case 0xe1:
+ EP0BCH=0;
+ EP0BCL=0;
+ while (EP0CS & bmEPBUSY);
+ set_voltage(cmd - 0xe0, EP0BUF[0]);
+ return TRUE;
+ case 0xe2:
+ EP0BCH=0;
+ EP0BCL=0;
+ while (EP0CS & bmEPBUSY);
+ set_samplerate(EP0BUF[0]);
+ return TRUE;
+ case 0xe3:
+ EP0BCH=0;
+ EP0BCL=0;
+ while (EP0CS & bmEPBUSY);
+ if (EP0BUF[0] == 1)
+ start_sampling();
+ return TRUE;
+ case 0xe4:
+ EP0BCH=0;
+ EP0BCL=0;
+ while (EP0CS & bmEPBUSY);
+ set_numchannels(EP0BUF[0]);
+ return TRUE;
+ }
+ return FALSE; // not handled by handlers
+}
+
+//******************** INIT ***********************
+
+void main_init() {
+ EP4CFG = 0;
+ EP8CFG = 0;
+
+ // in idle mode tristate all outputs
+ GPIFIDLECTL = 0x00;
+ GPIFCTLCFG = 0x80;
+ GPIFWFSELECT = 0x00;
+ GPIFREADYSTAT = 0x00;
+
+ stop_sampling();
+ set_voltage(0, 1);
+ set_voltage(1, 1);
+ set_samplerate(1);
+ set_numchannels(2);
+ select_interface(0);
+
+ printf ( "Initialization Done.\n" );
+}
+
+
+void main_loop() {
+}
+
+
--- /dev/null
+; Copyright (C) 2009 Ubixum, Inc.
+;
+; This library is free software; you can redistribute it and/or
+; modify it under the terms of the GNU Lesser General Public
+; License as published by the Free Software Foundation; either
+; version 2.1 of the License, or (at your option) any later version.
+;
+; This library 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
+; Lesser General Public License for more details.
+;
+; You should have received a copy of the GNU Lesser General Public
+; License along with this library; if not, write to the Free Software
+; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+; this is a the default
+; full speed and high speed
+; descriptors found in the TRM
+; change however you want but leave
+; the descriptor pointers so the setupdat.c file works right
+
+
+.module DEV_DSCR
+
+; descriptor types
+; same as setupdat.h
+DSCR_DEVICE_TYPE=1
+DSCR_CONFIG_TYPE=2
+DSCR_STRING_TYPE=3
+DSCR_INTERFACE_TYPE=4
+DSCR_ENDPOINT_TYPE=5
+DSCR_DEVQUAL_TYPE=6
+
+; for the repeating interfaces
+DSCR_INTERFACE_LEN=9
+DSCR_ENDPOINT_LEN=7
+
+; endpoint types
+ENDPOINT_TYPE_CONTROL=0
+ENDPOINT_TYPE_ISO=1
+ENDPOINT_TYPE_BULK=2
+ENDPOINT_TYPE_INT=3
+
+ .globl _dev_dscr, _dev_qual_dscr, _highspd_dscr, _fullspd_dscr, _dev_strings, _dev_strings_end
+; These need to be in code memory. If
+; they aren't you'll have to manully copy them somewhere
+; in code memory otherwise SUDPTRH:L don't work right
+ .area DSCR_AREA (CODE)
+
+_dev_dscr:
+ .db dev_dscr_end-_dev_dscr ; len
+ .db DSCR_DEVICE_TYPE ; type
+ .dw 0x0002 ; usb 2.0
+ .db 0xff ; class (vendor specific)
+ .db 0xff ; subclass (vendor specific)
+ .db 0xff ; protocol (vendor specific)
+ .db 64 ; packet size (ep0)
+ .dw 0xB504 ; vendor id
+ .dw 0x2260 ; product id
+ .dw 0x0000 ; version id
+ .db 1 ; manufacturure str idx
+ .db 2 ; product str idx
+ .db 0 ; serial str idx
+ .db 1 ; n configurations
+dev_dscr_end:
+
+_dev_qual_dscr:
+ .db dev_qualdscr_end-_dev_qual_dscr
+ .db DSCR_DEVQUAL_TYPE
+ .dw 0x0002 ; usb 2.0
+ .db 0
+ .db 0
+ .db 0
+ .db 64 ; max packet
+ .db 1 ; n configs
+ .db 0 ; extra reserved byte
+dev_qualdscr_end:
+
+_highspd_dscr:
+ .db highspd_dscr_end-_highspd_dscr ; dscr len ;; Descriptor length
+ .db DSCR_CONFIG_TYPE
+ ; can't use .dw because byte order is different
+ .db (highspd_dscr_realend-_highspd_dscr) % 256 ; total length of config lsb
+ .db (highspd_dscr_realend-_highspd_dscr) / 256 ; total length of config msb
+ .db 1 ; n interfaces
+ .db 1 ; config number
+ .db 0 ; config string
+ .db 0x80 ; attrs = bus powered, no wakeup
+ .db 55 ; max power = 110mA
+highspd_dscr_end:
+
+; all the interfaces next
+; BULK interface
+ .db DSCR_INTERFACE_LEN
+ .db DSCR_INTERFACE_TYPE
+ .db 0 ; index
+ .db 0 ; alt setting idx
+ .db 1 ; n endpoints
+ .db 0xff ; class
+ .db 0
+ .db 0
+ .db 0 ; string index
+
+; endpoint 6 in
+ .db DSCR_ENDPOINT_LEN
+ .db DSCR_ENDPOINT_TYPE
+ .db 0x86 ; ep1 dir=in and address
+ .db ENDPOINT_TYPE_BULK ; type
+ .db 0x00 ; max packet LSB
+ .db 0x02 ; max packet size=512 bytes
+ .db 0x00 ; polling interval
+
+; ISOCHRONOUS interface
+ .db DSCR_INTERFACE_LEN
+ .db DSCR_INTERFACE_TYPE
+ .db 0 ; index
+ .db 1 ; alt setting idx
+ .db 1 ; n endpoints
+ .db 0xff ; class
+ .db 0
+ .db 1
+ .db 0 ; string index
+
+; endpoint 2 in
+ .db DSCR_ENDPOINT_LEN
+ .db DSCR_ENDPOINT_TYPE
+ .db 0x82 ; ep1 dir=in and address
+ .db ENDPOINT_TYPE_ISO ; type
+ .db 0x00 ; max packet LSB
+ .db 0x14 ; max packet size=3*1024 bytes
+ .db 0x01 ; polling interval
+
+; ISOCHRONOUS interface 16MB/s
+ .db DSCR_INTERFACE_LEN
+ .db DSCR_INTERFACE_TYPE
+ .db 0 ; index
+ .db 2 ; alt setting idx
+ .db 1 ; n endpoints
+ .db 0xff ; class
+ .db 0
+ .db 1
+ .db 0 ; string index
+
+; endpoint 2 in
+ .db DSCR_ENDPOINT_LEN
+ .db DSCR_ENDPOINT_TYPE
+ .db 0x82 ; ep1 dir=in and address
+ .db ENDPOINT_TYPE_ISO ; type
+ .db 0x00 ; max packet LSB
+ .db 0x0c ; max packet size=2*1024 bytes
+ .db 0x01 ; polling interval
+
+; ISOCHRONOUS interface 8MB/s
+ .db DSCR_INTERFACE_LEN
+ .db DSCR_INTERFACE_TYPE
+ .db 0 ; index
+ .db 3 ; alt setting idx
+ .db 1 ; n endpoints
+ .db 0xff ; class
+ .db 0
+ .db 1
+ .db 0 ; string index
+
+; endpoint 2 in
+ .db DSCR_ENDPOINT_LEN
+ .db DSCR_ENDPOINT_TYPE
+ .db 0x82 ; ep1 dir=in and address
+ .db ENDPOINT_TYPE_ISO ; type
+ .db 0x00 ; max packet LSB
+ .db 0x04 ; max packet size=1024 bytes
+ .db 0x01 ; polling interval
+
+; ISOCHRONOUS interface 4MB/s
+ .db DSCR_INTERFACE_LEN
+ .db DSCR_INTERFACE_TYPE
+ .db 0 ; index
+ .db 4 ; alt setting idx
+ .db 1 ; n endpoints
+ .db 0xff ; class
+ .db 0
+ .db 1
+ .db 0 ; string index
+
+; endpoint 2 in
+ .db DSCR_ENDPOINT_LEN
+ .db DSCR_ENDPOINT_TYPE
+ .db 0x82 ; ep1 dir=in and address
+ .db ENDPOINT_TYPE_ISO ; type
+ .db 0x00 ; max packet LSB
+ .db 0x04 ; max packet size=1024 bytes
+ .db 0x02 ; polling interval
+
+
+; ISOCHRONOUS interface 2MB/s
+ .db DSCR_INTERFACE_LEN
+ .db DSCR_INTERFACE_TYPE
+ .db 0 ; index
+ .db 5 ; alt setting idx
+ .db 1 ; n endpoints
+ .db 0xff ; class
+ .db 0
+ .db 1
+ .db 0 ; string index
+
+; endpoint 2 in
+ .db DSCR_ENDPOINT_LEN
+ .db DSCR_ENDPOINT_TYPE
+ .db 0x82 ; ep1 dir=in and address
+ .db ENDPOINT_TYPE_ISO ; type
+ .db 0x00 ; max packet LSB
+ .db 0x04 ; max packet size=1024 bytes
+ .db 0x03 ; polling interval
+
+; ISOCHRONOUS interface 1MB/s
+ .db DSCR_INTERFACE_LEN
+ .db DSCR_INTERFACE_TYPE
+ .db 0 ; index
+ .db 6 ; alt setting idx
+ .db 1 ; n endpoints
+ .db 0xff ; class
+ .db 0
+ .db 1
+ .db 0 ; string index
+
+; endpoint 2 in
+ .db DSCR_ENDPOINT_LEN
+ .db DSCR_ENDPOINT_TYPE
+ .db 0x82 ; ep1 dir=in and address
+ .db ENDPOINT_TYPE_ISO ; type
+ .db 0x00 ; max packet LSB
+ .db 0x04 ; max packet size=1024 bytes
+ .db 0x04 ; polling interval
+
+; ISOCHRONOUS interface 500 kB/s
+ .db DSCR_INTERFACE_LEN
+ .db DSCR_INTERFACE_TYPE
+ .db 0 ; index
+ .db 7 ; alt setting idx
+ .db 1 ; n endpoints
+ .db 0xff ; class
+ .db 0
+ .db 1
+ .db 0 ; string index
+
+; endpoint 2 in
+ .db DSCR_ENDPOINT_LEN
+ .db DSCR_ENDPOINT_TYPE
+ .db 0x82 ; ep1 dir=in and address
+ .db ENDPOINT_TYPE_ISO ; type
+ .db 0x00 ; max packet LSB
+ .db 0x02 ; max packet size=512 bytes
+ .db 0x04 ; polling interval
+
+
+highspd_dscr_realend:
+
+.even
+_fullspd_dscr:
+ .db fullspd_dscr_end-_fullspd_dscr ; dscr len
+ .db DSCR_CONFIG_TYPE
+ ; can't use .dw because byte order is different
+ .db (fullspd_dscr_realend-_fullspd_dscr) % 256 ; total length of config lsb
+ .db (fullspd_dscr_realend-_fullspd_dscr) / 256 ; total length of config msb
+ .db 2 ; n interfaces
+ .db 1 ; config number
+ .db 0 ; config string
+ .db 0x80 ; attrs = bus powered, no wakeup
+ .db 55 ; max power = 110mA
+fullspd_dscr_end:
+
+
+; all the interfaces next
+; BULK interface
+ .db DSCR_INTERFACE_LEN
+ .db DSCR_INTERFACE_TYPE
+ .db 0 ; index
+ .db 0 ; alt setting idx
+ .db 1 ; n endpoints
+ .db 0xff ; class
+ .db 0
+ .db 0
+ .db 0 ; string index
+
+; endpoint 6 in
+ .db DSCR_ENDPOINT_LEN
+ .db DSCR_ENDPOINT_TYPE
+ .db 0x86 ; ep1 dir=in and address
+ .db ENDPOINT_TYPE_BULK ; type
+ .db 0x40 ; max packet LSB
+ .db 0x00 ; max packet size=512 bytes
+ .db 0x00 ; polling interval
+
+; ISOCHRONOUS interface 1 MB/s
+ .db DSCR_INTERFACE_LEN
+ .db DSCR_INTERFACE_TYPE
+ .db 0 ; index
+ .db 1 ; alt setting idx
+ .db 1 ; n endpoints
+ .db 0xff ; class
+ .db 0
+ .db 1
+ .db 0 ; string index
+
+; endpoint 2 in
+ .db DSCR_ENDPOINT_LEN
+ .db DSCR_ENDPOINT_TYPE
+ .db 0x82 ; ep1 dir=in and address
+ .db ENDPOINT_TYPE_ISO ; type
+ .db 0xff ; max packet LSB
+ .db 0x03 ; max packet size=1023 bytes
+ .db 0x01 ; polling interval
+
+; ISOCHRONOUS interface 500 kB/s
+ .db DSCR_INTERFACE_LEN
+ .db DSCR_INTERFACE_TYPE
+ .db 0 ; index
+ .db 2 ; alt setting idx
+ .db 1 ; n endpoints
+ .db 0xff ; class
+ .db 0
+ .db 1
+ .db 0 ; string index
+
+; endpoint 2 in
+ .db DSCR_ENDPOINT_LEN
+ .db DSCR_ENDPOINT_TYPE
+ .db 0x82 ; ep1 dir=in and address
+ .db ENDPOINT_TYPE_ISO ; type
+ .db 0x00 ; max packet LSB
+ .db 0x02 ; max packet size=512 bytes
+ .db 0x01 ; polling interval
+
+fullspd_dscr_realend:
+
+.even
+_dev_strings:
+; sample string
+_string0:
+ .db string0end-_string0 ; len
+ .db DSCR_STRING_TYPE
+ .db 0x09, 0x04 ; 0x0409 is the language code for English. Possible to add more codes after this.
+string0end:
+; add more strings here
+_string1:
+ .db string1end-_string1 ; len
+ .db DSCR_STRING_TYPE
+ .ascii 'O\0D\0M\0'
+string1end:
+_string2:
+ .db string2end-_string2 ; len
+ .db DSCR_STRING_TYPE
+ .ascii 'H\0a\0n\0t\0e\0k\0D\0S\0O\0006\0000\0002\0002\0B\0E\0'
+string2end:
+
+
+_dev_strings_end:
+ .dw 0x0000 ; in case you wanted to look at memory between _dev_strings and _dev_strings_end