[ot] hw/opentitan: ot_spi_device: add trace event for byte transfer

Signed-off-by: Alice Ziuziakowska <[email protected]>

Author: ziuziakowska

hw/opentitan/ot_spi_device.c

@@ -1356,7 +1356,7 @@ static uint8_t ot_spi_device_flash_transfer(OtSPIDeviceState *s, uint8_t rx)
 {
     SpiDeviceFlash *f = &s->flash;
 
-    (void)rx;
+    trace_ot_spi_device_flash_transfer(s->ot_id, "->", rx);
 
     uint8_t tx = SPI_DEFAULT_TX_VALUE;
 
@@ -1408,6 +1408,8 @@ static uint8_t ot_spi_device_flash_transfer(OtSPIDeviceState *s, uint8_t rx)
         g_assert_not_reached();
     }
 
+    trace_ot_spi_device_flash_transfer(s->ot_id, "<-", tx);
+
     return tx;
 }
 

hw/opentitan/trace-events

@@ -543,6 +543,7 @@ ot_spi_device_buf_write_in(const char *id, uint32_t addr, unsigned size, uint32_
 ot_spi_device_bus_change_state(const char *id, int line, const char *state, int stateval) "%s: @%d: %s [%d]"
 ot_spi_device_chr_handle_packet(const char *id, unsigned count, unsigned eot, char rx, char tx, const char *st) "%s: 0x%x bytes, eot: %u, rx: %csb, tx: %csb, mode:%s"
 ot_spi_device_chr_error(const char *id, const char *err) "%s: %s"
+ot_spi_device_flash_transfer(const char *id, const char *dir, uint8_t rx) "%s: host %s 0x%02x"
 ot_spi_device_flash_byte_unexpected(const char *id, uint8_t rx) "%s: unexpected byte 0x%02x after completed command"
 ot_spi_device_flash_change_state(const char *id, int line, const char *prev, int preval, const char *next, int nextval) "%s: @%d: %s[%d] -> %s[%d]"
 ot_spi_device_flash_cross_buffer(const char *id, const char *msg, uint32_t addr) "%s: %s 0x%08x"