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-rw-r--r--nuttx/arch/arm/src/str71x/str71x_internal.h39
-rw-r--r--nuttx/arch/arm/src/str71x/str71x_irq.c31
-rwxr-xr-xnuttx/arch/arm/src/str71x/str71x_xti.c105
3 files changed, 154 insertions, 21 deletions
diff --git a/nuttx/arch/arm/src/str71x/str71x_internal.h b/nuttx/arch/arm/src/str71x/str71x_internal.h
index 6c8913376..99012ca9c 100644
--- a/nuttx/arch/arm/src/str71x/str71x_internal.h
+++ b/nuttx/arch/arm/src/str71x/str71x_internal.h
@@ -105,23 +105,52 @@
********************************************************************************/
#ifdef CONFIG_STR71X_XTI
-extern int str7x_xtiinitialize(void);
+extern int str71x_xtiinitialize(void);
#else
-# define str7x_xtiinitialize()
+# define str71x_xtiinitialize()
#endif /* CONFIG_STR71X_XTI */
/********************************************************************************
* Name: str7x_xticonfig
*
* Description:
- * Configure an external line to provide interrupts.
+ * Configure an external line to provide interrupts. Interrupt is configured,
+ * but disabled on return.
*
********************************************************************************/
#ifdef CONFIG_STR71X_XTI
-extern int str7x_xticonfig(int irq, bool rising);
+extern int str71x_xticonfig(int irq, bool rising);
#else
-# define str7x_xticonfig(irq,rising)
+# define str71x_xticonfig(irq,rising)
+#endif /* CONFIG_STR71X_XTI */
+
+/****************************************************************************
+ * Name: str71x_enable_xtiirq
+ *
+ * Description:
+ * Enable an external interrupt.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_STR71X_XTI
+extern void str71x_enable_xtiirq(int irq);
+#else
+# define str71x_enable_xtiirq(irq)
+#endif /* CONFIG_STR71X_XTI */
+
+/****************************************************************************
+ * Name: str71x_disable_xtiirq
+ *
+ * Description:
+ * Disable an external interrupt.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_STR71X_XTI
+extern void str71x_disable_xtiirq(int irq);
+#else
+# define str71x_disable_xtiirq(irq)
#endif /* CONFIG_STR71X_XTI */
#endif /* __ARCH_ARM_SRC_STR71X_STR71X_INTERNAL_H */
diff --git a/nuttx/arch/arm/src/str71x/str71x_irq.c b/nuttx/arch/arm/src/str71x/str71x_irq.c
index ed39a560b..d27412e17 100644
--- a/nuttx/arch/arm/src/str71x/str71x_irq.c
+++ b/nuttx/arch/arm/src/str71x/str71x_irq.c
@@ -48,6 +48,7 @@
#include "chip.h"
#include "up_arch.h"
#include "up_internal.h"
+#include "str71x_internal.h"
/****************************************************************************
* Pre-procesor Definitions
@@ -100,6 +101,10 @@ void up_irqinitialize(void)
putreg32(0xffffffff, STR71X_EIC_IPR); /* And that no interrupts are pending */
#endif
+ /* Initialize external interrupts */
+
+ str71x_xtiinitialize();
+
/* Enable global ARM interrupts */
#ifndef CONFIG_SUPPRESS_INTERRUPTS
@@ -119,7 +124,7 @@ void up_disable_irq(int irq)
{
uint32_t reg32;
- if ((unsigned)irq < NR_IRQS)
+ if ((unsigned)irq < STR71X_NBASEIRQS)
{
/* Mask the IRQ by clearing the associated bit in the IER register */
@@ -127,6 +132,12 @@ void up_disable_irq(int irq)
reg32 &= ~(1 << irq);
putreg32(reg32, STR71X_EIC_IER);
}
+#ifdef CONFIG_STR71X_XTI
+ else if ((unsigned)irq < NR_IRQS)
+ {
+ str71x_disable_xtiirq(irq);
+ }
+#endif /* CONFIG_STR71X_XTI */
}
/****************************************************************************
@@ -141,7 +152,7 @@ void up_enable_irq(int irq)
{
uint32_t reg32;
- if ((unsigned)irq < NR_IRQS)
+ if ((unsigned)irq < STR71X_NBASEIRQS)
{
/* Enable the IRQ by setting the associated bit in the IER register */
@@ -149,13 +160,20 @@ void up_enable_irq(int irq)
reg32 |= (1 << irq);
putreg32(reg32, STR71X_EIC_IER);
}
+#ifdef CONFIG_STR71X_XTI
+ else if ((unsigned)irq < NR_IRQS)
+ {
+ str71x_enable_xtiirq(irq);
+ }
+#endif /* CONFIG_STR71X_XTI */
}
/****************************************************************************
* Name: up_maskack_irq
*
* Description:
- * Mask the IRQ and acknowledge it
+ * Mask the IRQ and acknowledge it. No XTI support.. only used in
+ * interrupt handling logic.
*
****************************************************************************/
@@ -163,7 +181,7 @@ void up_maskack_irq(int irq)
{
uint32_t reg32;
- if ((unsigned)irq < NR_IRQS)
+ if ((unsigned)irq < STR71X_NBASEIRQS)
{
/* Mask the IRQ by clearing the associated bit in the IER register */
@@ -185,7 +203,8 @@ void up_maskack_irq(int irq)
* Name: up_prioritize_irq
*
* Description:
- * set interrupt priority
+ * Set interrupt priority. Note, there is no way to prioritize
+ * individual XTI interrrupts.
*
****************************************************************************/
@@ -198,7 +217,7 @@ int up_prioritize_irq(int irq, int priority)
* of one is enforced to prevent disabling the interrupt.
*/
- if ((unsigned)irq < NR_IRQS && priority > 0 && priority < 16)
+ if ((unsigned)irq < STR71X_NBASEIRQS && priority > 0 && priority < 16)
{
addr = STR71X_EIC_SIR(irq);
reg32 = getreg32(addr);
diff --git a/nuttx/arch/arm/src/str71x/str71x_xti.c b/nuttx/arch/arm/src/str71x/str71x_xti.c
index 63e084577..f89f0715f 100755
--- a/nuttx/arch/arm/src/str71x/str71x_xti.c
+++ b/nuttx/arch/arm/src/str71x/str71x_xti.c
@@ -52,6 +52,7 @@
#include "up_arch.h"
#include "os_internal.h"
#include "up_internal.h"
+#include "str71x_internal.h"
#ifdef CONFIG_STR71X_XTI
@@ -87,7 +88,15 @@ static const struct xtiregs_s g_xtiregs[2] =
* Private Functions
********************************************************************************/
-static int str7x_xtiinterrupt(int irq, FAR void *context)
+/********************************************************************************
+ * Name: str71x_xtiinterrupt
+ *
+ * Description:
+ * Dispatch an XTI interrupt.
+ *
+ ********************************************************************************/
+
+static int str71x_xtiinterrupt(int irq, FAR void *context)
{
uint16_t enabled = (uint16_t)getreg8(STR71X_XTI_MRH) << 8 |
(uint16_t)getreg8(STR71X_XTI_MRL);
@@ -135,7 +144,7 @@ static int str7x_xtiinterrupt(int irq, FAR void *context)
********************************************************************************/
/********************************************************************************
- * Name: str7x_xtiinitialize
+ * Name: str71x_xtiinitialize
*
* Description:
* Configure XTI for operation. Note that the lines are not used as wake-up
@@ -144,7 +153,7 @@ static int str7x_xtiinterrupt(int irq, FAR void *context)
*
********************************************************************************/
-int str7x_xtiinitialize(void)
+int str71x_xtiinitialize(void)
{
int ret;
@@ -160,7 +169,7 @@ int str7x_xtiinitialize(void)
/* Attach the XTI interrupt */
- ret = irq_attach(STR71X_IRQ_XTI, str7x_xtiinterrupt);
+ ret = irq_attach(STR71X_IRQ_XTI, str71x_xtiinterrupt);
if (ret == OK)
{
/* Enable the XTI interrupt at the XTI */
@@ -175,16 +184,16 @@ int str7x_xtiinitialize(void)
}
/********************************************************************************
- * Name: str7x_xticonfig
+ * Name: str71x_xticonfig
*
* Description:
* Configure an external line to provide interrupts.
*
********************************************************************************/
-int str7x_xticonfig(int irq, bool rising)
+int str71x_xticonfig(int irq, bool rising)
{
- uint8_t regval;
+ uint8_t regval;
int bit;
int ndx;
int ret = -EINVAL;
@@ -193,6 +202,10 @@ int str7x_xticonfig(int irq, bool rising)
if (irq > STR71X_IRQ_FIRSTXTI && irq <= NR_IRQS)
{
+ /* Make sure that the interrupt is disabled */
+
+ str71x_disable_xtiirq(irq);
+
/* Decide if we use the lower or upper regiser */
bit = irq - STR71X_IRQ_FIRSTXTI;
@@ -218,6 +231,43 @@ int str7x_xticonfig(int irq, bool rising)
}
putreg8(regval, g_xtiregs[ndx].tr);
+ /* Return success */
+
+ ret = OK;
+ }
+ return ret;
+}
+
+/****************************************************************************
+ * Name: str71x_enable_xtiirq
+ *
+ * Description:
+ * Enable an external interrupt.
+ *
+ ****************************************************************************/
+
+void str71x_enable_xtiirq(int irq)
+{
+ uint8_t regval;
+ int bit;
+ int ndx;
+
+ /* Enable the external interrupt */
+
+ if (irq > STR71X_IRQ_FIRSTXTI && irq <= NR_IRQS)
+ {
+ /* Decide if we use the lower or upper regiser */
+
+ bit = irq - STR71X_IRQ_FIRSTXTI;
+ ndx = 0;
+ if (bit > 7)
+ {
+ /* Select the high register */
+
+ bit -= 8;
+ ndx = 1;
+ }
+
/* Enable the interrupt be setting the corresponding mask bit
* the XTI_MRL/H register.
*/
@@ -225,12 +275,47 @@ int str7x_xticonfig(int irq, bool rising)
regval = getreg8(g_xtiregs[ndx].mr);
regval |= (1 << bit);
putreg8(regval, g_xtiregs[ndx].mr);
+ }
+}
- /* Return success */
+/****************************************************************************
+ * Name: str71x_disable_xtiirq
+ *
+ * Description:
+ * Disable an external interrupt.
+ *
+ ****************************************************************************/
- ret = OK;
+void str71x_disable_xtiirq(int irq)
+{
+ uint8_t regval;
+ int bit;
+ int ndx;
+
+ /* Disable the external interrupt */
+
+ if (irq > STR71X_IRQ_FIRSTXTI && irq <= NR_IRQS)
+ {
+ /* Decide if we use the lower or upper regiser */
+
+ bit = irq - STR71X_IRQ_FIRSTXTI;
+ ndx = 0;
+ if (bit > 7)
+ {
+ /* Select the high register */
+
+ bit -= 8;
+ ndx = 1;
+ }
+
+ /* Disable the interrupt be clearing the corresponding mask bit
+ * the XTI_MRL/H register.
+ */
+
+ regval = getreg8(g_xtiregs[ndx].mr);
+ regval &= ~(1 << bit);
+ putreg8(regval, g_xtiregs[ndx].mr);
}
- return ret;
}
#endif /* CONFIG_STR71X_XTI */
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-09 17:11:39 +0000