diff options
Diffstat (limited to 'nuttx/configs/stm3240g-eval/src/up_stmpe11.c')
| -rw-r--r-- | nuttx/configs/stm3240g-eval/src/up_stmpe11.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/nuttx/configs/stm3240g-eval/src/up_stmpe11.c b/nuttx/configs/stm3240g-eval/src/up_stmpe11.c index e06e203e7..72482c92c 100644 --- a/nuttx/configs/stm3240g-eval/src/up_stmpe11.c +++ b/nuttx/configs/stm3240g-eval/src/up_stmpe11.c @@ -49,6 +49,8 @@ #include <nuttx/input/touchscreen.h> #include <nuttx/input/stmpe11.h> +#include <arch/irq.h> + #include "stm32_internal.h" #include "stm3240g-internal.h" @@ -221,10 +223,14 @@ static int stmpe11_attach(FAR struct stmpe11_config_s *state, xcpt_t isr) static void stmpe11_enable(FAR struct stmpe11_config_s *state, bool enable) { FAR struct stm32_stmpe11config_s *priv = (FAR struct stm32_stmpe11config_s *)state; + irqstate_t flags; - /* Attach and enable, or detach and disable */ + /* Attach and enable, or detach and disable. Enabling and disabling GPIO + * interrupts is a multi-step process so the safest thing is to keep + * interrupts disabled during the reconfiguratino. + */ - ivdbg("IRQ:%d enable:%d\n", STM32_IRQ_EXTI2, enable); + flags = irqsave(); if (enable) { /* Configure the EXTI interrupt using the SAVED handler */ @@ -237,6 +243,7 @@ static void stmpe11_enable(FAR struct stmpe11_config_s *state, bool enable) (void)stm32_gpiosetevent(GPIO_IO_EXPANDER, false, false, false, NULL); } + irqrestore(flags); } static void stmpe11_clear(FAR struct stmpe11_config_s *state) |