X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fusbtrng-v2.0%2Fao_usbtrng.c;fp=src%2Fusbtrng-v2.0%2Fao_usbtrng.c;h=42713b6ec842fb2023e9e4441527cdbdf6e5ed08;hp=e1f43cdd17fd2a4062717ec70220aaa3f773f960;hb=643c2fb03833d658320f476ef731bbb06fe3cc31;hpb=e41786fb384892961a6547e17812a24314ce9623 diff --git a/src/usbtrng-v2.0/ao_usbtrng.c b/src/usbtrng-v2.0/ao_usbtrng.c index e1f43cdd..42713b6e 100644 --- a/src/usbtrng-v2.0/ao_usbtrng.c +++ b/src/usbtrng-v2.0/ao_usbtrng.c @@ -18,58 +18,7 @@ #include #include #include - -static void -ao_trng_fetch(void) -{ - static uint16_t *buffer[2]; - uint32_t kbytes = 1; - uint32_t count; - int usb_buf_id; - int i; - uint16_t *buf; - uint32_t *rnd; - - if (!buffer[0]) { - buffer[0] = ao_usb_alloc(); - buffer[1] = ao_usb_alloc(); - if (!buffer[0]) - return; - } - - ao_cmd_decimal(); - if (ao_cmd_status == ao_cmd_success) - kbytes = ao_cmd_lex_u32; - else - ao_cmd_status = ao_cmd_success; - usb_buf_id = 0; - count = kbytes * (1024/AO_USB_IN_SIZE); - - ao_crc_reset(); - - ao_led_on(AO_LED_GREEN); - while (count--) { - buf = buffer[usb_buf_id]; -// printf ("before get: head %3d tail %3d running %d\n", ao_adc_ring_head, ao_adc_ring_tail, ao_adc_running); flush(); - rnd = (uint32_t *) ao_adc_get(AO_USB_IN_SIZE); /* one 16-bit value per output byte */ -// printf ("after get: head %3d tail %3d running %d\n", ao_adc_ring_head, ao_adc_ring_tail, ao_adc_running); flush(); - for (i = 0; i < 32; i++) - *buf++ = ao_crc_in_32_out_16(*rnd++); - ao_adc_ack(AO_USB_IN_SIZE); -// printf ("after ack: head %3d tail %3d running %d\n", ao_adc_ring_head, ao_adc_ring_tail, ao_adc_running); flush(); - ao_led_toggle(AO_LED_GREEN|AO_LED_RED); - ao_usb_write(buffer[usb_buf_id], AO_USB_IN_SIZE); - ao_led_toggle(AO_LED_GREEN|AO_LED_RED); - usb_buf_id = 1-usb_buf_id; - } - ao_led_off(AO_LED_GREEN|AO_LED_RED); - flush(); -} - -static const struct ao_cmds usbtrng_cmds[] = { - { ao_trng_fetch, "f \0Fetch a block of numbers" }, - { 0, NULL }, -}; +#include void main(void) { @@ -86,7 +35,8 @@ void main(void) ao_usb_init(); - ao_cmd_register(usbtrng_cmds); + ao_trng_init(); + ao_led_off(AO_LED_RED); ao_start_scheduler();