[ot] hw/opentitan: ot_spi_device: rename packet handling trace message

Signed-off-by: Emmanuel Blot <eblot@rivosinc.com>

Author: rivos-eblot

hw/opentitan/ot_spi_device.c

@@ -2196,13 +2196,13 @@ static void ot_spi_device_chr_handle_header(OtSPIDeviceState *s)
     uint8_t comm = mode ^ (uint8_t)s->spi_regs[R_CFG];
     bus->mode = (comm & (R_CFG_CPOL_MASK | R_CFG_CPHA_MASK)) ? 0xFF : 0x00;
 
-    trace_ot_spi_device_chr_cs_assert(bus->byte_count, bus->release,
-                                      bus->rev_rx ? 'l' : 'm',
-                                      bus->rev_tx ? 'l' : 'm',
-                                      bus->mode ? "mismatch" : "ok");
+    trace_ot_spi_device_chr_handle_packet(bus->byte_count, bus->release,
+                                          bus->rev_rx ? 'l' : 'm',
+                                          bus->rev_tx ? 'l' : 'm',
+                                          bus->mode ? "mismatch" : "ok");
 
     if (!bus->byte_count) {
-        /* no payload, stay in IDLE */
+        /* no payload, stay in IDLE (handle_header is only called from IDLE) */
         return;
     }
 
@@ -2449,6 +2449,7 @@ static void ot_spi_device_chr_receive(void *opaque, const uint8_t *buf,
             fifo8_push(&bus->chr_fifo, *buf++);
         }
         if (fifo8_is_full(&bus->chr_fifo)) {
+            /* a full header has been received, it can be decoded */
             ot_spi_device_chr_handle_header(s);
         }
         break;

hw/opentitan/trace-events

@@ -433,7 +433,7 @@ ot_socdbg_ctrl_update(const char *id, unsigned policy, bool valid) "%s: debug po
 ot_spi_device_buf_read_out(uint32_t addr, unsigned size, uint32_t val, uint32_t pc) "addr=0x%03x, sz=%u, val=0x%08x, pc=0x%x"
 ot_spi_device_buf_write_in(uint32_t addr, unsigned size, uint32_t val, uint32_t pc) "addr=0x%03x, sz=%u,  val=0x%08x, pc=0x%x"
 ot_spi_device_bus_change_state(int line, const char *state, int stateval) "@%d: %s [%d]"
-ot_spi_device_chr_cs_assert(unsigned count, bool release, char rx, char tx, const char *st) "0x%x bytes, /cs: %u, rx: %csb, tx: %csb, mode:%s"
+ot_spi_device_chr_handle_packet(unsigned count, unsigned eot, char rx, char tx, const char *st) "0x%x bytes, eot: %u, rx: %csb, tx: %csb, mode:%s"
 ot_spi_device_chr_error(const char *err) "%s"
 ot_spi_device_flash_byte_unexpected(uint8_t rx) "unexpected byte 0x%02x after completed command"
 ot_spi_device_flash_change_state(int line, const char *prev, int preval, const char *next, int nextval) "@%d: %s[%d] -> %s[%d]"