qemu-e2k/hw/i2c/trace-events
Hao Wu 94e7787939 hw/i2c: Implement NPCM7XX SMBus Module Single Mode
This commit implements the single-byte mode of the SMBus.

Each Nuvoton SoC has 16 System Management Bus (SMBus). These buses
compliant with SMBus and I2C protocol.

This patch implements the single-byte mode of the SMBus. In this mode,
the user sends or receives a byte each time. The SMBus device transmits
it to the underlying i2c device and sends an interrupt back to the QEMU
guest.

Reviewed-by: Doug Evans<dje@google.com>
Reviewed-by: Tyrong Ting<kfting@nuvoton.com>
Signed-off-by: Hao Wu <wuhaotsh@google.com>
Reviewed-by: Corey Minyard <cminyard@mvista.com>
Message-id: 20210210220426.3577804-2-wuhaotsh@google.com
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-02-16 13:49:28 +00:00

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# See docs/devel/tracing.txt for syntax documentation.
# core.c
i2c_event(const char *event, uint8_t address) "%s(addr:0x%02x)"
i2c_send(uint8_t address, uint8_t data) "send(addr:0x%02x) data:0x%02x"
i2c_recv(uint8_t address, uint8_t data) "recv(addr:0x%02x) data:0x%02x"
# aspeed_i2c.c
aspeed_i2c_bus_cmd(uint32_t cmd, const char *cmd_flags, uint32_t count, uint32_t intr_status) "handling cmd=0x%x %s count=%d intr=0x%x"
aspeed_i2c_bus_raise_interrupt(uint32_t intr_status, const char *str1, const char *str2, const char *str3, const char *str4, const char *str5) "handled intr=0x%x %s%s%s%s%s"
aspeed_i2c_bus_read(uint32_t busid, uint64_t offset, unsigned size, uint64_t value) "bus[%d]: To 0x%" PRIx64 " of size %u: 0x%" PRIx64
aspeed_i2c_bus_write(uint32_t busid, uint64_t offset, unsigned size, uint64_t value) "bus[%d]: To 0x%" PRIx64 " of size %u: 0x%" PRIx64
aspeed_i2c_bus_send(const char *mode, int i, int count, uint8_t byte) "%s send %d/%d 0x%02x"
aspeed_i2c_bus_recv(const char *mode, int i, int count, uint8_t byte) "%s recv %d/%d 0x%02x"
# npcm7xx_smbus.c
npcm7xx_smbus_read(const char *id, uint64_t offset, uint64_t value, unsigned size) "%s offset: 0x%04" PRIx64 " value: 0x%02" PRIx64 " size: %u"
npcm7xx_smbus_write(const char *id, uint64_t offset, uint64_t value, unsigned size) "%s offset: 0x%04" PRIx64 " value: 0x%02" PRIx64 " size: %u"
npcm7xx_smbus_start(const char *id, int success) "%s starting, success: %d"
npcm7xx_smbus_send_address(const char *id, uint8_t addr, int recv, int success) "%s sending address: 0x%02x, recv: %d, success: %d"
npcm7xx_smbus_send_byte(const char *id, uint8_t value, int success) "%s send byte: 0x%02x, success: %d"
npcm7xx_smbus_recv_byte(const char *id, uint8_t value) "%s recv byte: 0x%02x"
npcm7xx_smbus_stop(const char *id) "%s stopping"
npcm7xx_smbus_nack(const char *id) "%s nacking"