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bsp/lpc24xx: Add lpc24xx_module_is_enabled()

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This commit is contained in:
Sebastian Huber
2012-06-15 09:51:14 +02:00
parent 696c4510d7
commit 4e0755c81b
2 changed files with 26 additions and 0 deletions
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2
c/src/lib/libbsp/arm/lpc24xx/include/io.h
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@@ -147,6 +147,8 @@ rtems_status_code lpc24xx_module_disable(
lpc24xx_module module
);
bool lpc24xx_module_is_enabled(lpc24xx_module module);
rtems_status_code lpc24xx_gpio_config(
unsigned index,
lpc24xx_gpio_settings settings

24
c/src/lib/libbsp/arm/lpc24xx/misc/io.c
View File

@@ -327,6 +327,30 @@ rtems_status_code lpc24xx_module_disable(
);
}
bool lpc24xx_module_is_enabled(lpc24xx_module module)
{
bool enabled = false;
if ((unsigned) module < LPC24XX_MODULE_COUNT) {
bool has_power = lpc24xx_module_table [module].power;
if (has_power) {
unsigned index = lpc24xx_module_table [module].index;
#ifdef ARM_MULTILIB_ARCH_V4
uint32_t pconp = PCONP;
#else
uint32_t pconp = LPC17XX_SCB.pconp;
#endif
enabled = (pconp & (1U << index)) != 0;
} else {
enabled = true;
}
}
return enabled;
}
typedef rtems_status_code (*lpc24xx_pin_visitor)(
#ifdef ARM_MULTILIB_ARCH_V4
volatile uint32_t *pinsel,