qemu-e2k/hw/gpio/trace-events
Peter Maydell ef4989b0a8 hw/gpio/pl061: Convert to 3-phase reset and assert GPIO lines correctly on reset
The PL061 comes out of reset with all its lines configured as input,
which means they might need to be pulled to 0 or 1 depending on the
'pullups' and 'pulldowns' properties.  Currently we do not assert
these lines on reset; they will only be set whenever the guest first
touches a register that triggers a call to pl061_update().

Convert the device to three-phase reset so we have a place where we
can safely call qemu_set_irq() to set the floating lines to their
correct values.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-09 16:09:12 +01:00

30 lines
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# See docs/devel/tracing.rst for syntax documentation.
# npcm7xx_gpio.c
npcm7xx_gpio_read(const char *id, uint64_t offset, uint64_t value) " %s offset: 0x%04" PRIx64 " value 0x%08" PRIx64
npcm7xx_gpio_write(const char *id, uint64_t offset, uint64_t value) "%s offset: 0x%04" PRIx64 " value 0x%08" PRIx64
npcm7xx_gpio_set_input(const char *id, int32_t line, int32_t level) "%s line: %" PRIi32 " level: %" PRIi32
npcm7xx_gpio_set_output(const char *id, int32_t line, int32_t level) "%s line: %" PRIi32 " level: %" PRIi32
npcm7xx_gpio_update_events(const char *id, uint32_t evst, uint32_t even) "%s evst: 0x%08" PRIx32 " even: 0x%08" PRIx32
# nrf51_gpio.c
nrf51_gpio_read(uint64_t offset, uint64_t r) "offset 0x%" PRIx64 " value 0x%" PRIx64
nrf51_gpio_write(uint64_t offset, uint64_t value) "offset 0x%" PRIx64 " value 0x%" PRIx64
nrf51_gpio_set(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
nrf51_gpio_update_output_irq(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
# pl061.c
pl061_update(const char *id, uint32_t dir, uint32_t data, uint32_t pullups, uint32_t floating) "%s GPIODIR 0x%x GPIODATA 0x%x pullups 0x%x floating 0x%x"
pl061_set_output(const char *id, int gpio, int level) "%s setting output %d to %d"
pl061_input_change(const char *id, int gpio, int level) "%s input %d changed to %d"
pl061_update_istate(const char *id, uint32_t istate, uint32_t im, int level) "%s GPIORIS 0x%x GPIOIE 0x%x interrupt level %d"
pl061_read(const char *id, uint64_t offset, uint64_t r) "%s offset 0x%" PRIx64 " value 0x%" PRIx64
pl061_write(const char *id, uint64_t offset, uint64_t value) "%s offset 0x%" PRIx64 " value 0x%" PRIx64
pl061_reset(const char *id) "%s reset"
# sifive_gpio.c
sifive_gpio_read(uint64_t offset, uint64_t r) "offset 0x%" PRIx64 " value 0x%" PRIx64
sifive_gpio_write(uint64_t offset, uint64_t value) "offset 0x%" PRIx64 " value 0x%" PRIx64
sifive_gpio_set(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
sifive_gpio_update_output_irq(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64