From 743268f5146e3fd93abb8b6142ef6a259a0656c5 Mon Sep 17 00:00:00 2001 From: "mario.six@gdsys.cc" Date: Wed, 25 May 2016 15:15:23 +0200 Subject: dm: test: Add GPIO open drain tests Add some tests for the new open drain setting feature of the GPIO uclass, and extend the capabilities of the sandbox GPIO driver accordingly. Signed-off-by: Mario Six Reviewed-by: Simon Glass Reviewed-by: York Sun --- arch/sandbox/include/asm/gpio.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'arch') diff --git a/arch/sandbox/include/asm/gpio.h b/arch/sandbox/include/asm/gpio.h index 8317db1ad3..427af2c970 100644 --- a/arch/sandbox/include/asm/gpio.h +++ b/arch/sandbox/include/asm/gpio.h @@ -40,6 +40,26 @@ int sandbox_gpio_get_value(struct udevice *dev, unsigned int offset); */ int sandbox_gpio_set_value(struct udevice *dev, unsigned int offset, int value); +/** + * Set or reset the simulated open drain mode of a GPIO (used only in sandbox + * test code) + * + * @param gp GPIO number + * @param value value to set (0 for enabled open drain mode, non-zero for + * disabled) + * @return -1 on error, 0 if ok + */ +int sandbox_gpio_set_open_drain(struct udevice *dev, unsigned offset, int value); + +/** + * Return the state of the simulated open drain mode of a GPIO (used only in + * sandbox test code) + * + * @param gp GPIO number + * @return -1 on error, 0 if GPIO is input, >0 if output + */ +int sandbox_gpio_get_open_drain(struct udevice *dev, unsigned offset); + /** * Return the simulated direction of a GPIO (used only in sandbox test code) * -- cgit v1.2.1