94 lines
1.9 KiB
C
94 lines
1.9 KiB
C
#include <stdio.h>
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#include <irq.h>
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#include <printf.h>
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#include <uart.h>
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#include <usb.h>
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#include <time.h>
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#include <generated/csr.h>
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void isr(void)
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{
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unsigned int irqs;
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irqs = irq_pending() & irq_getmask();
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if (irqs & (1 << USB_INTERRUPT))
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usb_isr();
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if (irqs & (1 << UART_INTERRUPT))
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uart_isr();
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}
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static void rv_putchar(void *ignored, char c)
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{
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(void)ignored;
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if (c == '\n')
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uart_write('\r');
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if (c == '\r')
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return;
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uart_write(c);
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}
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static void init(void)
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{
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init_printf(NULL, rv_putchar);
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irq_setmask(0);
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irq_setie(1);
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uart_init();
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usb_init();
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time_init();
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}
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static const char *usb_hw_api(void) {
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#ifdef CSR_USB_EP_0_OUT_EV_PENDING_ADDR
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return "epfifo";
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#else
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#ifdef CSR_USB_OBUF_EMPTY_ADDR
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return "rawfifo";
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#else
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#ifdef CSR_USB_WHATEVER
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return "whatever";
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#else
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return "unrecognized hw api";
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#endif /* CSR_USB_WHATEVER */
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#endif /* CSR_USB_OBUF_EMPTY_ADDR */
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#endif /* CSR_USB_EP_0_OUT_EV_PENDING_ADDR */
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}
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int main(int argc, char **argv)
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{
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(void)argc;
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(void)argv;
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init();
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printf("\n\nUSB API: %s\n", usb_hw_api());
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// printf("Press any key to enable USB...\n");
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// usb_print_status();
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// uart_read();
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printf("Enabling USB\n");
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usb_connect();
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printf("USB enabled, waiting for packet...\n");
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// usb_print_status();
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int last = 0;
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static uint8_t bfr[12];
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while (1)
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{
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if (usb_irq_happened() != last) {
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last = usb_irq_happened();
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printf("USB %d IRQ happened\n", last);
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}
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usb_poll();
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printf("Press any key to send... ");
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uart_read();
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printf("Sending... ");
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bfr[0] = ~0;
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bfr[1] = 0;
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bfr[2] = 0;
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usb_send(NULL, 0, bfr, 3);
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printf("Sent\n");
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}
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return 0;
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} |