[PATCH v2 2/6] hw/usb/canokey: Add trace events

["Hongren (Zenithal) Zheng" <i@zenithal.me>]

Signed-off-by: Hongren (Zenithal) Zheng <i@zenithal.me>
---
 hw/usb/canokey.c    | 17 +++++++++++++++++
 hw/usb/trace-events | 17 +++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/hw/usb/canokey.c b/hw/usb/canokey.c
index 6bd4dedfd2..c8cc31ba9e 100644
--- a/hw/usb/canokey.c
+++ b/hw/usb/canokey.c
@@ -16,6 +16,7 @@
 #include "qapi/error.h"
 #include "hw/usb.h"
 #include "hw/qdev-properties.h"
+#include "trace.h"
 #include "desc.h"
 #include "canokey.h"
 
@@ -64,6 +65,7 @@ static const USBDesc desc_canokey = {
 /* Implement canokey-qemu functions */
 int canokey_emu_stall_ep(void *base, uint8_t ep)
 {
+    trace_canokey_emu_stall_ep(ep);
     CanoKeyState *key = base;
     uint8_t ep_in = CANOKEY_EP_IN(ep); /* INTR IN has ep 129 */
     qemu_mutex_lock(&key->ep_in_mutex[ep_in]);
@@ -75,6 +77,7 @@ int canokey_emu_stall_ep(void *base, uint8_t ep)
 
 int canokey_emu_set_address(void *base, uint8_t addr)
 {
+    trace_canokey_emu_set_address(addr);
     CanoKeyState *key = base;
     key->dev.addr = addr;
     return 0;
@@ -83,6 +86,7 @@ int canokey_emu_set_address(void *base, uint8_t addr)
 int canokey_emu_prepare_receive(
         void *base, uint8_t ep, uint8_t *pbuf, uint16_t size)
 {
+    trace_canokey_emu_prepare_receive(ep, size);
     CanoKeyState *key = base;
     /*
      * No mutex here because it is usually called by
@@ -96,6 +100,7 @@ int canokey_emu_prepare_receive(
 int canokey_emu_transmit(
         void *base, uint8_t ep, const uint8_t *pbuf, uint16_t size)
 {
+    trace_canokey_emu_transmit(ep, size);
     CanoKeyState *key = base;
     uint8_t ep_in = CANOKEY_EP_IN(ep); /* INTR IN has ep 129 */
     qemu_mutex_lock(&key->ep_in_mutex[ep_in]);
@@ -114,6 +119,7 @@ uint32_t canokey_emu_get_rx_data_size(void *base, uint8_t ep)
 
 static void *canokey_thread(void *arg)
 {
+    trace_canokey_thread_start();
     CanoKeyState *key = arg;
 
     while (true) {
@@ -124,6 +130,7 @@ static void *canokey_thread(void *arg)
 
         /* Exit thread check */
         if (key->stop_thread) {
+            trace_canokey_thread_stop();
             key->stop_thread = false;
             break;
         }
@@ -135,6 +142,7 @@ static void *canokey_thread(void *arg)
 
 static void canokey_handle_reset(USBDevice *dev)
 {
+    trace_canokey_handle_reset();
     CanoKeyState *key = CANOKEY(dev);
     for (int i = 0; i != CANOKEY_EP_NUM; ++i) {
         key->ep_in_status[i] = CANOKEY_EP_IN_WAIT;
@@ -146,6 +154,7 @@ static void canokey_handle_reset(USBDevice *dev)
 static void canokey_handle_control(USBDevice *dev, USBPacket *p,
                int request, int value, int index, int length, uint8_t *data)
 {
+    trace_canokey_handle_control_setup(request, value, index, length);
     CanoKeyState *key = CANOKEY(dev);
 
     canokey_emu_setup(request, value, index, length);
@@ -155,6 +164,7 @@ static void canokey_handle_control(USBDevice *dev, USBPacket *p,
     uint32_t dir_in = request & DeviceRequest;
     if (!dir_in) {
         /* OUT */
+        trace_canokey_handle_control_out();
         qemu_mutex_lock(&key->key_mutex);
         if (key->ep_out[0] != NULL) {
             memcpy(key->ep_out[0], data, length);
@@ -179,6 +189,8 @@ static void canokey_handle_control(USBDevice *dev, USBPacket *p,
     p->actual_length = key->ep_in_size[ep_in];
 
     qemu_mutex_unlock(&key->ep_in_mutex[ep_in]);
+
+    trace_canokey_handle_control_in(p->actual_length);
 }
 
 static void canokey_handle_data(USBDevice *dev, USBPacket *p)
@@ -190,9 +202,11 @@ static void canokey_handle_data(USBDevice *dev, USBPacket *p)
     uint32_t in_len;
     switch (p->pid) {
     case USB_TOKEN_OUT:
+        trace_canokey_handle_data_out(ep_out);
         qemu_mutex_lock(&key->key_mutex);
         if (p->iov.size > key->ep_out_size[ep_out]) {
             /* unlikely we will reach here, but check still needed */
+            trace_canokey_handle_data_out_err(ep_out, p->iov.size, key->ep_out_size[ep_out]);
             p->status = USB_RET_NAK;
             qemu_mutex_unlock(&key->key_mutex);
             break;
@@ -213,6 +227,7 @@ static void canokey_handle_data(USBDevice *dev, USBPacket *p)
                 qemu_mutex_unlock(&key->ep_in_mutex[ep_in]);
                 break;
             }
+            trace_canokey_handle_data_in(ep_in);
             if (key->ep_in_status[ep_in] == CANOKEY_EP_IN_STALL) {
                 p->status = USB_RET_STALL;
             }
@@ -243,6 +258,7 @@ static void canokey_handle_data(USBDevice *dev, USBPacket *p)
 
 static void canokey_realize(USBDevice *base, Error **errp)
 {
+    trace_canokey_realize();
     CanoKeyState *key = CANOKEY(base);
 
     if (key->file == NULL) {
@@ -274,6 +290,7 @@ static void canokey_realize(USBDevice *base, Error **errp)
 
 static void canokey_unrealize(USBDevice *base)
 {
+    trace_canokey_unrealize();
     CanoKeyState *key = CANOKEY(base);
 
     /* Thread */
diff --git a/hw/usb/trace-events b/hw/usb/trace-events
index b8287b63f1..0236e9615d 100644
--- a/hw/usb/trace-events
+++ b/hw/usb/trace-events
@@ -345,3 +345,20 @@ usb_serial_set_baud(int bus, int addr, int baud) "dev %d:%u baud rate %d"
 usb_serial_set_data(int bus, int addr, int parity, int data, int stop) "dev %d:%u parity %c, data bits %d, stop bits %d"
 usb_serial_set_flow_control(int bus, int addr, int index) "dev %d:%u flow control %d"
 usb_serial_set_xonxoff(int bus, int addr, uint8_t xon, uint8_t xoff) "dev %d:%u xon 0x%x xoff 0x%x"
+
+# canokey.c
+canokey_emu_stall_ep(uint8_t ep) "ep %d"
+canokey_emu_set_address(uint8_t addr) "addr %d"
+canokey_emu_prepare_receive(uint8_t ep, uint16_t size) "ep %d size %d"
+canokey_emu_transmit(uint8_t ep, uint16_t size) "ep %d size %d"
+canokey_thread_start(void)
+canokey_thread_stop(void)
+canokey_handle_reset(void)
+canokey_handle_control_setup(int request, int value, int index, int length) "request %04X value %04X index %04X length %04X"
+canokey_handle_control_out(void)
+canokey_handle_control_in(int actual_len) "actual len %d"
+canokey_handle_data_out(uint8_t ep_out) "ep %d"
+canokey_handle_data_out_err(uint8_t ep_out, uint32_t income, uint32_t buffer_size) "ep %d overflow! income %d, buffer size %d"
+canokey_handle_data_in(uint8_t ep_out) "ep %d"
+canokey_realize(void)
+canokey_unrealize(void)
-- 
2.34.0