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drivers/rpmsg_port_uart: add debug buffer for rpmsg_port_uart

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Record the history receive data for debug

Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
This commit is contained in:
Bowen Wang
2025-05-06 20:40:16 +08:00
committed by GUIDINGLI
parent df366b591f
commit f833f0ed79
1 changed files with 21 additions and 6 deletions
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drivers/rpmsg/rpmsg_port_uart.c
+21 -6
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@@ -60,6 +60,7 @@
#define RPMSG_PORT_UART_ESCAPE_MASK 0x20
#define RPMSG_PORT_UART_BUFLEN 256
#define RPMSG_PORT_UART_DBG_BUFLEN 4096
#define RPMSG_PORT_UART_RX_WAIT_START 1
#define RPMSG_PORT_UART_RX_RECV_NORMAL 2
@@ -100,6 +101,8 @@ struct rpmsg_port_uart_s
struct file file; /* Indicate uart device */
char localcpu[RPMSG_NAME_SIZE];
rpmsg_port_rx_cb_t rx_cb;
uint8_t rx_dbg_buf[RPMSG_PORT_UART_DBG_BUFLEN];
int rx_dbg_idx;
nxevent_t event;
struct notifier_block nb; /* Reboot notifier block */
#ifdef CONFIG_PM
@@ -458,6 +461,12 @@ static int rpmsg_port_uart_rx_thread(int argc, FAR char *argv[])
for (i = 0; i < ret; i++)
{
rpuart->rx_dbg_buf[rpuart->rx_dbg_idx++] = buf[i];
if (rpuart->rx_dbg_idx >= RPMSG_PORT_UART_DBG_BUFLEN)
{
rpuart->rx_dbg_idx = 0;
}
if (buf[i] == RPMSG_PORT_UART_CONNREQ ||
buf[i] == RPMSG_PORT_UART_CONNACK)
{
@@ -574,9 +583,12 @@ static int rpmsg_port_uart_rx_thread(int argc, FAR char *argv[])
case RPMSG_PORT_UART_RX_RECV_NORMAL:
if (buf[i] == RPMSG_PORT_UART_START)
{
rpmsgerr("Recv dup start char, len=%u next=%u i=%zd\n",
hdr->len, next, i);
rpmsgerrdump("Recv error data:", buf, ret);
rpmsgerr("Recv dup start char, len=%u next=%u i=%zd "
"dbg_i=%d\n", hdr->len, next, i,
rpuart->rx_dbg_idx);
rpmsgerrdump("Recv dbg:", rpuart->rx_dbg_buf,
sizeof(rpuart->rx_dbg_buf));
rpmsgerrdump("Recv error:", buf, ret);
rpmsgerrdump("Recv hdr:", hdr, hdr->len);
state = RPMSG_PORT_UART_RX_WAIT_START;
next = 0;
@@ -586,9 +598,12 @@ static int rpmsg_port_uart_rx_thread(int argc, FAR char *argv[])
if (hdr->len != next || (hdr->crc != 0 &&
hdr->crc != rpmsg_port_uart_crc16(hdr)))
{
rpmsgerr("Recv error crc=%u len=%u next=%u i=%zd\n",
hdr->crc, hdr->len, next, i);
rpmsgerrdump("Recv error data:", buf, ret);
rpmsgerr("Recv error crc=%u len=%u next=%u i=%zd "
"dbg_i=%d\n", hdr->crc, hdr->len, next, i,
rpuart->rx_dbg_idx);
rpmsgerrdump("Recv dbg:", rpuart->rx_dbg_buf,
sizeof(rpuart->rx_dbg_buf));
rpmsgerrdump("Recv error:", buf, ret);
rpmsgerrdump("Recv hdr:", hdr, hdr->len);
}