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CDC to be echo service.

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This commit is contained in:
NIIBE Yutaka
2015-11-05 13:54:49 +09:00
parent a30a069ed8
commit fd8aee3cb0
4 changed files with 156 additions and 49 deletions
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58
example-cdc/sample.c
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@@ -3,14 +3,13 @@
#include <string.h>
#include <chopstx.h>
#include "sys.h" /* for set_led */
#include "usb_lld.h" /* for set_led */
#include "usb_lld.h"
#include "stream.h"
static chopstx_mutex_t mtx;
static chopstx_cond_t cnd0;
static chopstx_cond_t cnd1;
chopstx_mutex_t usb_mtx;
chopstx_cond_t cnd_usb;
static uint8_t u, v;
static uint8_t m; /* 0..100 */
@@ -128,6 +127,7 @@ static char hexchar (uint8_t x)
int
main (int argc, const char *argv[])
{
struct stream *st;
uint8_t count;
(void)argc;
@@ -137,8 +137,7 @@ main (int argc, const char *argv[])
chopstx_cond_init (&cnd0);
chopstx_cond_init (&cnd1);
chopstx_mutex_init (&usb_mtx);
chopstx_cond_init (&cnd_usb);
st = stream_open ();
m = 10;
@@ -154,41 +153,38 @@ main (int argc, const char *argv[])
chopstx_cond_signal (&cnd1);
chopstx_mutex_unlock (&mtx);
count= 0;
while (1)
{
extern uint8_t connected;
count= 0;
uint8_t s[64];
u = 1;
/* waiting USB connection */
chopstx_mutex_lock (&usb_mtx);
if (!connected)
chopstx_cond_wait (&cnd_usb, &usb_mtx);
chopstx_mutex_unlock (&usb_mtx);
if (stream_wait_connection (st) < 0)
{
chopstx_usec_wait (1000*1000);
continue;
}
memcpy (s, "xx: Hello, World with Chopstx!\r\n\000", 32);
s[0] = hexchar (count >> 4);
s[1] = hexchar (count & 0x0f);
count++;
if (stream_send (st, s, 32) < 0)
continue;
while (1)
{
char s[32];
int size = stream_recv (st, s);
if (size < 0)
break;
if (stream_send (st, s, size) < 0)
break;
u ^= 1;
chopstx_usec_wait (200*1000*6);
memcpy (s, "xx: Hello, World with Chopstx!\r\n", 32);
s[0] = hexchar (count >> 4);
s[1] = hexchar (count & 0x0f);
count++;
chopstx_mutex_lock (&usb_mtx);
if (connected)
{
usb_lld_write (ENDP1, s, 32);
chopstx_cond_wait (&cnd_usb, &usb_mtx);
}
else
break;
chopstx_mutex_unlock (&usb_mtx);
}
chopstx_mutex_unlock (&usb_mtx);
}
return 0;