void usb_initialization(){
printf("USB Initialization\n");
alt_up_usb_dev * usb_dev;
usb_dev = alt_up_usb_open_dev(USB_0_NAME);
assert(usb_dev);
usb_device_init(usb_dev, USB_0_IRQ);
printf("Polling USB device. Run middleman now!\n");
alt_timestamp_start();
int clocks = 0;
while (clocks < 50000000 * 10) {
clocks = alt_timestamp();
usb_device_poll();
}
printf("Done polling USB\n");
}
/********************************************************************************
* This program demonstrates use of the media ports in the DE2 Media Computer
*
* It performs the following:
* 1. records audio for about 10 seconds when KEY[1] is pressed. LEDG[0] is
* lit while recording
* 2. plays the recorded audio when KEY[2] is pressed. LEDG[1] is lit while
* playing
* 3. Draws a blue box on the VGA display, and places a text string inside
* the box
* 4. Shows a text message on the LCD display
* 5. Displays the last three bytes of data received from the PS/2 port
* on the HEX displays on the DE2 board
********************************************************************************/
int main(void)
{
alt_up_usb_dev *usb_dev;
int errors = 0, count = 0;
unsigned long rhp1, rhp2;
unsigned int status;
unsigned int ccode=0;
unsigned int rbuf[128];
unsigned int iManufacturer,iProduct;
unsigned int mouse01=0,mouse02=0;
unsigned int mycode;
// alt_up_parallel_port_dev *KEY_dev;
// alt_up_ps2_dev *PS2_dev;
// alt_up_audio_dev *audio_dev;
// alt_up_character_lcd_dev *lcd_dev;
// alt_up_char_buffer_dev *char_buffer_dev;
// alt_up_pixel_buffer_dma_dev *pixel_buffer_dev;
// /* used for audio record/playback */
// int record = 0, play = 0, buffer_index = 0;
// unsigned int l_buf[BUF_SIZE];
// unsigned int r_buf[BUF_SIZE];
// int num_read; int num_written;
// /* used for PS/2 port data */
// unsigned char PS2_data;
// unsigned char byte1 = 0, byte2 = 0, byte3 = 0;
/* create a message to be displayed on the VGA and LCD displays */
// char text_top_row[40] = "Altera DE2\0";
// char text_bottom_row[40] = "Media Computer\0";
/* open the usb controller */
usb_dev = alt_up_usb_open_dev ("/dev/USB_avalon_usb_slave");
if (usb_dev == NULL)
{
alt_printf ("Error: could not open USB controller device\n");
return -1;
}
else
alt_printf ("Opened USB controller device\n");
printf ("USB Base Address: %4X\n", usb_dev->base);
printf ("Read Chip ID: %4X\n", alt_up_usb_hc_reg_read_16(usb_dev, 0x27));
// Test HC scratch reg
do {
alt_up_usb_hc_reg_write_16(usb_dev, 0x28, count);
if (count != alt_up_usb_hc_reg_read_16(usb_dev, 0x28)) {
printf("Error Encountered at %d\n", count);
errors++;
}
} while (++count <= 0xFFFF);
if (errors == 0) {
printf("No errors writing and reading from HC scratch reg.\n");
} else {
printf("There were %d errors writing and reading from HC scratch reg.\n", errors);
}
// End test HC scratch reg
printf("Initialize defaults for HC controller\n");
alt_up_usb_hc_initialize_defaults(usb_dev);
printf("Setup USB Operational mode\n");
alt_up_usb_hc_set_operational(usb_dev);
// printf("Disable all USB interrupts\n");
// alt_up_usb_hc_disable_all_interrupts(usb_dev);
printf("Enable Ports\n");
alt_up_usb_enable_ports(usb_dev);
printf("Length of ATL: %4d\n", alt_up_usb_hc_reg_read_16(usb_dev, ALT_UP_USB_HcATLBufferSize));
printf("Length of PTL: %4d\n", alt_up_usb_hc_reg_read_16(usb_dev, ALT_UP_USB_HcISTLBufferSize));
printf("Length of INT: %4d\n", alt_up_usb_hc_reg_read_16(usb_dev, ALT_UP_USB_HcINTLBufferSize));
// Start checking if something is connected
rhp1 = alt_up_usb_hc_reg_read_32( usb_dev, ALT_UP_USB_HcRhPortStatus1 );
rhp2 = alt_up_usb_hc_reg_read_32( usb_dev, ALT_UP_USB_HcRhPortStatus2 );
printf("RhP1 = %8lX RhP2 = %8lX\n", rhp1, rhp2);
printf("Port1Speed = %2d\n", alt_up_usb_get_port_speed(ALT_UP_USB_PORT_1));
printf("Port2Speed = %2d\n", alt_up_usb_get_port_speed(ALT_UP_USB_PORT_2));
if ((rhp2 & 0x01) == 1) {
printf("Port 2 has USB device connected, assigning address 2...\n");
ccode = alt_up_usb_set_address( usb_dev, ALT_UP_USB_PORT_2, 0, 2);
status=0x0001|(ccode<<4);
printf ("MyStatus = %X\n", status);
}
// alt_up_usb_hc_reg_write_16(usb_dev, ALT_UP_USB_HcuPInterruptEnable, 0x120);
if( (status&0x0001)!=0) //port 2 active
{
// Check port 2 for mouse
mycode=alt_up_usb_get_control(usb_dev, rbuf,2,'D',0,2);
printf("MyCode = %X\n", mycode);
if(mycode==0x0300)
{
iManufacturer = rbuf[7]&0xFF;
iProduct = (rbuf[7]&0xFF00)>>8;
alt_up_usb_addr_info(2,'W','O',iManufacturer);
alt_up_usb_addr_info(2,'W','P',iProduct);
mycode=alt_up_usb_get_control(usb_dev,rbuf,2,'H',alt_up_usb_addr_info(2,'R','P',0),2);
printf("Device found? %4X\n", *(rbuf + 1));
if( *(rbuf+1)==0x0209 )
{
printf("Mouse Detected\n");
mouse02=1;
mycode = alt_up_usb_set_config( usb_dev, 2, 2, 1 );
printf("Set Config MyCode = %X\n", mycode);
if(mycode==0) alt_up_usb_play_mouse( usb_dev, 2, 2 );
} else if( *(rbuf+1)==0x0609 ){
printf("Keyboard Detected\n");
mouse02=1;
mycode = alt_up_usb_set_config( usb_dev, 2, 2, 1 );
printf("Set Config MyCode = %X\n", mycode);
if(mycode==0) alt_up_usb_play_keyboard( usb_dev, 2, 2 );
}
}