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SAM4L GPIO port addressing fixes; SAM4L Xplained LED support; minor documentation updates

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This commit is contained in:
Gregory Nutt
2013-06-05 08:54:37 -06:00
parent 52ce4f84ff
commit efce99ba6f
5 changed files with 407 additions and 102 deletions
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arch/arm/src/sam34/chip/sam4l_gpio.h
+369 -85
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File diff suppressed because it is too large Load Diff
arch/arm/src/sam34/sam4l_gpio.c
+10 -8
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@@ -105,6 +105,8 @@ static inline int sam_gpiopin(gpio_pinset_t cfgset)
*
* Description:
* Configure a GPIO input pin based on bit-encoded description of the pin.
* This function serves the dual role of putting all pins into a known,
* initial state. Hence, it is overkill for what really needs to be done.
*
****************************************************************************/
@@ -200,10 +202,10 @@ static inline int sam_configinterrupt(uintptr_t base, uint32_t pin,
* falling edges.
*/
ret = sam_configinput(base, pin, cfgset)
if (ret = OK)
ret = sam_configinput(base, pin, cfgset);
if (ret == OK)
{
/* Disable rising and falling edge interrupts as requested
/* Disable rising and falling edge interrupts as requested
* {IMR1, IMR0} Interrupt Mode
*
* 00 Pin Change <-- We already have this
@@ -214,13 +216,13 @@ static inline int sam_configinterrupt(uintptr_t base, uint32_t pin,
gpio_pinset_t edges = cfgset & GPIO_INT_MASK;
if (eges = GPIO_INT_RISING)
if (edges == GPIO_INT_RISING)
{
/* Rising only.. disable interrrupts on the falling edge */
putreg32(pin, base + SAM_GPIO_IMR0S_OFFSET);
}
else if (edges = GPIO_INT_FALLING)
else if (edges == GPIO_INT_FALLING)
{
/* Falling only.. disable interrrupts on the rising edge */
@@ -363,7 +365,7 @@ static inline int sam_configperiph(uintptr_t base, uint32_t pin,
case _GPIO_FUNCC: /* Function C 010 */
putreg32(pin, base + SAM_GPIO_PMR1S_OFFSET);
break;
case _GPIO_FUNCE: /* Function E 100 */
putreg32(pin, base + SAM_GPIO_PMR2S_OFFSET);
break;
@@ -397,13 +399,13 @@ static inline int sam_configperiph(uintptr_t base, uint32_t pin,
*/
edges = cfgset & GPIO_INT_MASK;
if (eges = GPIO_INT_RISING)
if (edges == GPIO_INT_RISING)
{
/* Rising only.. disable interrrupts on the falling edge */
putreg32(pin, base + SAM_GPIO_IMR0S_OFFSET);
}
else if (edges = GPIO_INT_FALLING)
else if (edges == GPIO_INT_FALLING)
{
/* Falling only.. disable interrrupts on the rising edge */