mirror of
https://github.com/felis/USB_Host_Shield_2.0.git
synced 2024-03-22 11:31:26 +01:00
266 lines
8.4 KiB
Text
266 lines
8.4 KiB
Text
#include <avrpins.h>
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#include <max3421e.h>
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#include <usbhost.h>
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#include <usb_ch9.h>
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#include <Usb.h>
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#include <usbhub.h>
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#include <avr/pgmspace.h>
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#include <address.h>
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#include <printhex.h>
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#include <message.h>
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#include <hexdump.h>
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#include <parsetools.h>
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/* variables */
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uint8_t rcode;
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uint8_t usbstate;
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//uint8_t buf[sizeof(USB_DEVICE_DESCRIPTOR)];
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USB_DEVICE_DESCRIPTOR buf;
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/* objects */
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USB Usb;
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//USBHub hub(&Usb);
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void setup()
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{
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Serial.begin( 115200 );
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Notify(PSTR("\r\nCircuits At Home 2011"));
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Notify(PSTR("\r\nUSB Host Shield Quality Control Routine"));
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/* check init */
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// if (Usb.Init() == -1) {
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// Notify(PSTR("\r\nOSCOKIRQ failed to assert"));
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// halt55();
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// }
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/* SPI quick test - check revision register */
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Notify(PSTR("\r\nReading REVISION register... Die revision "));
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{
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uint8_t tmpbyte = Usb.regRd( rREVISION );
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switch( tmpbyte ) {
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case( 0x01): //rev.01
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Notify(PSTR("01"));
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break;
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case( 0x12): //rev.02
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Notify(PSTR("02"));
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break;
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case( 0x13): //rev.03
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Notify(PSTR("03"));
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break;
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default:
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Notify(PSTR("invalid. Value returned: "));
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print_hex( tmpbyte, 8 );
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halt55();
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break;
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}//switch( tmpbyte...
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}//check revision register
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/* SPI long test */
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{
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Notify(PSTR("\r\nSPI long test. Transfers 1MB of data. Each dot is 64K"));
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uint8_t sample_wr = 0;
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uint8_t sample_rd = 0;
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uint8_t gpinpol_copy = Usb.regRd( rGPINPOL );
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for( uint8_t i = 0; i < 16; i++ ) {
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for( uint16_t j = 0; j < 65535; j++ ) {
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Usb.regWr( rGPINPOL, sample_wr );
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sample_rd = Usb.regRd( rGPINPOL );
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if( sample_rd != sample_wr ) {
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Notify(PSTR("\r\nTest failed. "));
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Notify(PSTR("Value written: "));
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print_hex( sample_wr, 8 );
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Notify(PSTR(" read: "));
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print_hex( sample_rd, 8 );
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halt55();
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}//if( sample_rd != sample_wr..
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sample_wr++;
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}//for( uint16_t j...
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Notify(PSTR("."));
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}//for( uint8_t i...
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Usb.regWr( rGPINPOL, gpinpol_copy );
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Notify(PSTR(" SPI long test passed"));
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}//SPI long test
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/* GPIO test */
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/* in order to simplify board layout, GPIN pins on text fixture are connected to GPOUT */
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/* in reverse order, i.e, GPIN0 is connected to GPOUT7, GPIN1 to GPOUT6, etc. */
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{
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uint8_t tmpbyte;
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Notify(PSTR("\r\nGPIO test. Connect GPIN0 to GPOUT7, GPIN1 to GPOUT6, and so on"));
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for( uint8_t sample_gpio = 0; sample_gpio < 255; sample_gpio++ ) {
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Usb.gpioWr( sample_gpio );
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tmpbyte = Usb.gpioRd();
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/* bit reversing code copied vetbatim from http://graphics.stanford.edu/~seander/bithacks.html#BitReverseObvious */
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tmpbyte = ((tmpbyte * 0x0802LU & 0x22110LU) | (tmpbyte * 0x8020LU & 0x88440LU)) * 0x10101LU >> 16;
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if( sample_gpio != tmpbyte ) {
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Notify(PSTR("\r\nTest failed. Value written: "));
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print_hex( sample_gpio, 8 );
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Notify(PSTR(" Value read: "));
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print_hex( tmpbyte , 8 );
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Notify(PSTR(" "));
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press_any_key();
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break;
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}//if( sample_gpio != tmpbyte...
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}//for( uint8_t sample_gpio...
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Notify(PSTR("\r\nGPIO test passed."));
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}//GPIO test
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/* PLL test. Stops/starts MAX3421E oscillator several times */
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{
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Notify(PSTR("\r\nPLL test. 100 chip resets will be performed"));
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/* check current state of the oscillator */
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if(!( Usb.regRd( rUSBIRQ ) & bmOSCOKIRQ )) { //wrong state - should be on
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Notify(PSTR("\r\nCurrent oscillator state unexpected."));
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press_any_key();
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}
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/* Restart oscillator */
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Notify(PSTR("\r\nResetting oscillator"));
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for( uint16_t i = 0; i < 101; i++ ) {
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Notify(PSTR("\rReset number "));
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Serial.print( i, DEC );
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Usb.regWr( rUSBCTL, bmCHIPRES ); //reset
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if( Usb.regRd( rUSBIRQ ) & bmOSCOKIRQ ) { //wrong state - should be off
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Notify(PSTR("\r\nCurrent oscillator state unexpected."));
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halt55();
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}
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Usb.regWr( rUSBCTL, 0x00 ); //release from reset
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uint16_t j = 0;
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for( j = 0; j < 65535; j++ ) { //tracking off to on time
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if( Usb.regRd( rUSBIRQ ) & bmOSCOKIRQ ) {
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Notify(PSTR(" Time to stabilize - "));
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Serial.print( j, DEC );
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Notify(PSTR(" cycles"));
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break;
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}
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}//for( uint16_t j = 0; j < 65535; j++
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if( j == 0 ) {
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Notify(PSTR("PLL failed to stabilize"));
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press_any_key();
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}
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}//for( uint8_t i = 0; i < 255; i++
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}//PLL test
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/* initializing USB stack */
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if (Usb.Init() == -1) {
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Notify(PSTR("\r\nOSCOKIRQ failed to assert"));
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halt55();
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}
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Notify(PSTR("\r\nChecking USB device communication.\r\n"));
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}
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void loop()
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{
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delay( 200 );
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Usb.Task();
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usbstate = Usb.getUsbTaskState();
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//usbstate = Usb.getVbusState();
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//Notify(PSTR("\r\nUSB Task State: "));
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//print_hex( usbstate, 8 );
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/**/
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switch( usbstate ) {
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case( USB_DETACHED_SUBSTATE_WAIT_FOR_DEVICE ):
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Notify(PSTR("\rWaiting for device ..."));
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break;
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case( USB_ATTACHED_SUBSTATE_RESET_DEVICE ):
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Notify(PSTR("\r\nDevice connected. Resetting"));
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break;
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case( USB_ATTACHED_SUBSTATE_WAIT_SOF ):
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Notify(PSTR("\rReset complete. Waiting for the first SOF..."));
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break;
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case( USB_ATTACHED_SUBSTATE_GET_DEVICE_DESCRIPTOR_SIZE ):
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Notify(PSTR("\r\nSOF generation started. Enumerating device."));
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break;
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case( USB_STATE_ADDRESSING ):
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Notify(PSTR("\r\nSetting device address"));
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break;
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case( USB_STATE_RUNNING ):
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Notify(PSTR("\r\nGetting device descriptor"));
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rcode = Usb.getDevDescr( 1, 0, sizeof(USB_DEVICE_DESCRIPTOR), (uint8_t*)&buf );
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if( rcode ) {
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Notify(PSTR("\rError reading device descriptor. Error code "));
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print_hex( rcode, 8 );
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}
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else {
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/**/
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Notify(PSTR("\r\nDescriptor Length:\t"));
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print_hex( buf.bLength, 8 );
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Notify(PSTR("\r\nDescriptor type:\t"));
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print_hex( buf.bDescriptorType, 8 );
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Notify(PSTR("\r\nUSB version:\t\t"));
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print_hex( buf.bcdUSB, 16 );
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Notify(PSTR("\r\nDevice class:\t\t"));
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print_hex( buf.bDeviceClass, 8 );
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Notify(PSTR("\r\nDevice Subclass:\t"));
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print_hex( buf.bDeviceSubClass, 8 );
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Notify(PSTR("\r\nDevice Protocol:\t"));
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print_hex( buf.bDeviceProtocol, 8 );
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Notify(PSTR("\r\nMax.packet size:\t"));
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print_hex( buf.bMaxPacketSize0, 8 );
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Notify(PSTR("\r\nVendor ID:\t\t"));
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print_hex( buf.idVendor, 16 );
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Notify(PSTR("\r\nProduct ID:\t\t"));
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print_hex( buf.idProduct, 16 );
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Notify(PSTR("\r\nRevision ID:\t\t"));
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print_hex( buf.bcdDevice, 16 );
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Notify(PSTR("\r\nMfg.string index:\t"));
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print_hex( buf.iManufacturer, 8 );
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Notify(PSTR("\r\nProd.string index:\t"));
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print_hex( buf.iProduct, 8 );
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Notify(PSTR("\r\nSerial number index:\t"));
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print_hex( buf.iSerialNumber, 8 );
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Notify(PSTR("\r\nNumber of conf.:\t"));
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print_hex( buf.bNumConfigurations, 8 );
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/**/
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Notify(PSTR("\r\n\nAll tests passed. Press RESET to restart test"));
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while(1);
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}
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break;
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case( USB_STATE_ERROR ):
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Notify(PSTR("\rUSB state machine reached error state"));
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break;
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default:
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//Notify(PSTR("\rUndefined State"));
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break;
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}//switch( usbstate...
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}//loop()...
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/* constantly transmits 0x55 via SPI to aid probing */
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void halt55()
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{
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Notify(PSTR("\r\nUnrecoverable error - test halted!!!"));
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Notify(PSTR("\r\n0x55 pattern is transmitted via SPI"));
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Notify(PSTR("\r\nPress RESET to restart test"));
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while( 1 ) {
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Usb.regWr( 0x55, 0x55 );
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}
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}
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/* prints hex numbers with leading zeroes */
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void print_hex(int v, int num_places)
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{
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int mask=0, n, num_nibbles, digit;
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for (n=1; n<=num_places; n++) {
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mask = (mask << 1) | 0x0001;
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}
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v = v & mask; // truncate v to specified number of places
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num_nibbles = num_places / 4;
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if ((num_places % 4) != 0) {
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++num_nibbles;
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}
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do {
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digit = ((v >> (num_nibbles-1) * 4)) & 0x0f;
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Serial.print(digit, HEX);
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} while(--num_nibbles);
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}
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/* prints "Press any key" and returns when key is pressed */
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void press_any_key()
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{
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Notify(PSTR("\r\nPress any key to continue..."));
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while( Serial.available() == 0 ); //wait for input
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Serial.read(); //empty input buffer
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return;
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}
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