X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fusbtrng-v2.0%2Fao_usbtrng.c;h=e34babec5f4fdd748871b5e21fa6c05196eefad4;hb=863a9d523b26a8a5f8fbd5b516bd7dd914ee079e;hp=26cfbac92953cc0d9da28d3253199891e328662e;hpb=3749426af1e900a1b3354922fdd7e8b3bfa38084;p=fw%2Faltos diff --git a/src/usbtrng-v2.0/ao_usbtrng.c b/src/usbtrng-v2.0/ao_usbtrng.c index 26cfbac9..e34babec 100644 --- a/src/usbtrng-v2.0/ao_usbtrng.c +++ b/src/usbtrng-v2.0/ao_usbtrng.c @@ -3,7 +3,8 @@ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of @@ -18,56 +19,7 @@ #include #include #include - -static void -ao_trng_fetch(void) -{ - static uint16_t *buffer[2]; - static uint32_t adc_in[AO_USB_IN_SIZE/2]; /* twice as many as we need */ - 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--) { - ao_adc_read((uint16_t *) adc_in, AO_USB_IN_SIZE); - rnd = adc_in; - buf = buffer[usb_buf_id]; - for (i = 0; i < 32; i++) - *buf++ = ao_crc_in_32_out_16(*rnd++); - 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); - ao_usb_flush(); -} - -static const struct ao_cmds usbtrng_cmds[] = { - { ao_trng_fetch, "f \0Fetch a block of numbers" }, - { 0, NULL }, -}; +#include void main(void) { @@ -84,7 +36,8 @@ void main(void) ao_usb_init(); - ao_cmd_register(usbtrng_cmds); + ao_trng_init(); + ao_led_off(AO_LED_RED); ao_start_scheduler();