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ng_slip: fix some bugs

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This commit is contained in:
Martine Lenders 2015-06-01 16:40:24 +02:00
parent 4d3c55f42b
commit b47c4af50b
2 changed files with 13 additions and 14 deletions
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4
sys/include/net/gnrc/slip.h
View File

@ -49,8 +49,8 @@ extern "C" {
*/
typedef struct {
uart_t uart; /**< the UART interface */
ringbuffer_t *in_buf; /**< RX buffer */
ringbuffer_t *out_buf; /**< TX buffer */
ringbuffer_t in_buf; /**< RX buffer */
ringbuffer_t out_buf; /**< TX buffer */
char rx_mem[GNRC_SLIP_BUFSIZE]; /**< memory used by RX buffer */
char tx_mem[GNRC_SLIP_BUFSIZE]; /**< memory used by TX buffer */
uint32_t in_bytes; /**< the number of bytes received of a

23
sys/net/gnrc/link_layer/slip/gnrc_slip.c
View File

@ -63,20 +63,19 @@ static void _slip_rx_cb(void *arg, char data)
_SLIP_DEV(arg)->in_bytes = 0;
}
if (_SLIP_DEV(arg)->in_esc) {
else if (_SLIP_DEV(arg)->in_esc) {
_SLIP_DEV(arg)->in_esc = 0;
switch (data) {
case (_SLIP_END_ESC):
if (ringbuffer_add_one(_SLIP_DEV(arg)->in_buf, _SLIP_END) < 0) {
if (ringbuffer_add_one(&_SLIP_DEV(arg)->in_buf, _SLIP_END) < 0) {
_SLIP_DEV(arg)->in_bytes++;
}
break;
case (_SLIP_ESC_ESC):
if (ringbuffer_add_one(_SLIP_DEV(arg)->in_buf, _SLIP_ESC) < 0) {
if (ringbuffer_add_one(&_SLIP_DEV(arg)->in_buf, _SLIP_ESC) < 0) {
_SLIP_DEV(arg)->in_bytes++;
}
@ -90,7 +89,7 @@ static void _slip_rx_cb(void *arg, char data)
_SLIP_DEV(arg)->in_esc = 1;
}
else {
if (ringbuffer_add_one(_SLIP_DEV(arg)->in_buf, data) < 0) {
if (ringbuffer_add_one(&_SLIP_DEV(arg)->in_buf, data) < 0) {
_SLIP_DEV(arg)->in_bytes++;
}
}
@ -98,8 +97,8 @@ static void _slip_rx_cb(void *arg, char data)
int _slip_tx_cb(void *arg)
{
if (_SLIP_DEV(arg)->out_buf->avail > 0) {
char c = (char)ringbuffer_get_one(_SLIP_DEV(arg)->out_buf);
if (_SLIP_DEV(arg)->out_buf.avail > 0) {
char c = (char)ringbuffer_get_one(&_SLIP_DEV(arg)->out_buf);
uart_write((uart_t)(_SLIP_DEV(arg)->uart), c);
return 1;
}
@ -134,7 +133,7 @@ static void _slip_receive(gnrc_slip_dev_t *dev, size_t bytes)
gnrc_netif_hdr_init(hdr, 0, 0);
hdr->if_pid = thread_getpid();
if (ringbuffer_get(dev->in_buf, pkt->data, bytes) != bytes) {
if (ringbuffer_get(&dev->in_buf, pkt->data, bytes) != bytes) {
DEBUG("slip: could not read %u bytes from ringbuffer\n", (unsigned)bytes);
gnrc_pktbuf_release(pkt);
return;
@ -171,7 +170,7 @@ static void _slip_receive(gnrc_slip_dev_t *dev, size_t bytes)
static inline void _slip_send_char(gnrc_slip_dev_t *dev, char c)
{
ringbuffer_add_one(dev->out_buf, c);
ringbuffer_add_one(&dev->out_buf, c);
uart_tx_begin(dev->uart);
}
@ -260,17 +259,17 @@ static void *_slip(void *args)
kernel_pid_t gnrc_slip_init(gnrc_slip_dev_t *dev, uart_t uart, uint32_t baudrate,
char *stack, size_t stack_size, char priority)
{
int res;
kernel_pid_t pid;
/* reset device descriptor fields */
dev->uart = uart;
dev->in_bytes = 0;
dev->in_esc = 0;
dev->slip_pid = KERNEL_PID_UNDEF;
/* initialize buffers */
ringbuffer_init(dev->in_buf, dev->rx_mem, sizeof(dev->rx_mem));
ringbuffer_init(dev->out_buf, dev->tx_mem, sizeof(dev->tx_mem));
ringbuffer_init(&dev->in_buf, dev->rx_mem, sizeof(dev->rx_mem));
ringbuffer_init(&dev->out_buf, dev->tx_mem, sizeof(dev->tx_mem));
/* initialize UART */
DEBUG("slip: initialize UART_%d with baudrate %" PRIu32 "\n", uart,