import at91lib from at91lib_20100901_softpack_1_9_v_1_0_svn_v1501120100901_softpack_1_9_v_1_0_svn_v15011

it's sad to see that atmel doesn't publish their svn repo or has
a centralized location or even puts proper version/release info
into the library itself

5 files changed, 412 insertions, 0 deletions

diff --git a/peripherals/irq/aic.c b/peripherals/irq/aic.c
new file mode 100644
index 0000000..d2353f5
--- /dev/null
+++ b/peripherals/irq/aic.c
@@ -0,0 +1,91 @@
+/* ----------------------------------------------------------------------------

+ *         ATMEL Microcontroller Software Support 

+ * ----------------------------------------------------------------------------

+ * Copyright (c) 2008, Atmel Corporation

+ *

+ * All rights reserved.

+ *

+ * Redistribution and use in source and binary forms, with or without

+ * modification, are permitted provided that the following conditions are met:

+ *

+ * - Redistributions of source code must retain the above copyright notice,

+ * this list of conditions and the disclaimer below.

+ *

+ * Atmel's name may not be used to endorse or promote products derived from

+ * this software without specific prior written permission.

+ *

+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR

+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE

+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,

+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,

+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,

+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ * ----------------------------------------------------------------------------

+ */

+

+//------------------------------------------------------------------------------

+//         Headers

+//------------------------------------------------------------------------------

+

+#include <board.h>

+#include "irq.h"

+

+#ifndef AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL

+    /// Interrupt is internal and uses a logical 1 level.

+    #define AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL AT91C_AIC_SRCTYPE_INT_LEVEL_SENSITIVE

+#endif

+

+//------------------------------------------------------------------------------

+//         Global functions

+//------------------------------------------------------------------------------

+

+//------------------------------------------------------------------------------

+/// Configures an interrupt in the AIC. The interrupt is identified by its

+/// source (AT91C_ID_xxx) and is configured to use the specified mode and

+/// interrupt handler function. Mode is the value that will be put in AIC_SMRx

+/// and the function address will be set in AIC_SVRx.

+/// The interrupt is disabled before configuration, so it is useless

+/// to do it before calling this function. When AIC_ConfigureIT returns, the

+/// interrupt will always be disabled and cleared; it must be enabled by a

+/// call to AIC_EnableIT().

+/// \param source  Interrupt source to configure.

+/// \param mode  Triggering mode and priority of the interrupt.

+/// \param handler  Interrupt handler function.

+//------------------------------------------------------------------------------

+void IRQ_ConfigureIT(unsigned int source,

+                     unsigned int mode,

+                     void( *handler )( void ))

+{

+    // Disable the interrupt first

+    AT91C_BASE_AIC->AIC_IDCR = 1 << source;

+

+    // Configure mode and handler

+    AT91C_BASE_AIC->AIC_SMR[source] = mode;

+    AT91C_BASE_AIC->AIC_SVR[source] = (unsigned int) handler;

+

+    // Clear interrupt

+    AT91C_BASE_AIC->AIC_ICCR = 1 << source;

+}

+

+//------------------------------------------------------------------------------

+/// Enables interrupts coming from the given (unique) source (AT91C_ID_xxx).

+/// \param source  Interrupt source to enable.

+//------------------------------------------------------------------------------

+void IRQ_EnableIT(unsigned int source)

+{

+    AT91C_BASE_AIC->AIC_IECR = 1 << source;

+}

+

+//------------------------------------------------------------------------------

+/// Disables interrupts coming from the given (unique) source (AT91C_ID_xxx).

+/// \param source  Interrupt source to enable.

+//------------------------------------------------------------------------------

+void IRQ_DisableIT(unsigned int source)

+{

+    AT91C_BASE_AIC->AIC_IDCR = 1 << source;

+}

+

diff --git a/peripherals/irq/irq.dir b/peripherals/irq/irq.dir
new file mode 100644
index 0000000..06e017a
--- /dev/null
+++ b/peripherals/irq/irq.dir
@@ -0,0 +1,38 @@
+/* ----------------------------------------------------------------------------

+ *         ATMEL Microcontroller Software Support 

+ * ----------------------------------------------------------------------------

+ * Copyright (c) 2008, Atmel Corporation

+ *

+ * All rights reserved.

+ *

+ * Redistribution and use in source and binary forms, with or without

+ * modification, are permitted provided that the following conditions are met:

+ *

+ * - Redistributions of source code must retain the above copyright notice,

+ * this list of conditions and the disclaimer below.

+ *

+ * Atmel's name may not be used to endorse or promote products derived from

+ * this software without specific prior written permission.

+ *

+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR

+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE

+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,

+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,

+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,

+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ * ----------------------------------------------------------------------------

+ */

+

+//------------------------------------------------------------------------------

+/// \dir

+///

+/// !!!Purpose

+///

+/// This directory contains an API for Configure the Interrupt controller.

+/// The interrupt controller for SAM7 and SAM9 is AIC, and the interrupt controller

+/// for SAM3 is NVIC.

+//------------------------------------------------------------------------------
\ No newline at end of file
diff --git a/peripherals/irq/irq.h b/peripherals/irq/irq.h
new file mode 100644
index 0000000..5f0e203
--- /dev/null
+++ b/peripherals/irq/irq.h
@@ -0,0 +1,84 @@
+/* ----------------------------------------------------------------------------

+ *         ATMEL Microcontroller Software Support 

+ * ----------------------------------------------------------------------------

+ * Copyright (c) 2008, Atmel Corporation

+ *

+ * All rights reserved.

+ *

+ * Redistribution and use in source and binary forms, with or without

+ * modification, are permitted provided that the following conditions are met:

+ *

+ * - Redistributions of source code must retain the above copyright notice,

+ * this list of conditions and the disclaimer below.

+ *

+ * Atmel's name may not be used to endorse or promote products derived from

+ * this software without specific prior written permission.

+ *

+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR

+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE

+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,

+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,

+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,

+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ * ----------------------------------------------------------------------------

+ */

+

+//------------------------------------------------------------------------------

+/// \unit

+///

+/// !Purpose

+/// 

+/// Methods and definitions for configuring interrupts.

+/// 

+/// !Usage

+///

+/// -# Configure an interrupt source using IRQ_ConfigureIT

+/// -# Enable or disable interrupt generation of a particular source with

+///    IRQ_EnableIT and IRQ_DisableIT.

+///

+/// \note Most of the time, peripheral interrupts must be also configured

+/// inside the peripheral itself.

+//------------------------------------------------------------------------------

+

+#ifndef IRQ_H

+#define IRQ_H

+

+//------------------------------------------------------------------------------

+//         Headers

+//------------------------------------------------------------------------------

+

+#include <board.h>

+#if defined(cortexm3)

+#include <core_cm3.h>

+#endif

+

+//------------------------------------------------------------------------------

+//         Definitions

+//------------------------------------------------------------------------------

+#if 0

+#if defined(cortexm3)

+#ifdef __NVIC_PRIO_BITS

+#undef __NVIC_PRIO_BITS

+#define __NVIC_PRIO_BITS           ((SCB->AIRCR & 0x700) >> 8) 

+#endif

+#endif

+#endif

+

+//------------------------------------------------------------------------------

+//         Global functions

+//------------------------------------------------------------------------------

+

+extern void IRQ_ConfigureIT(unsigned int source,

+                            unsigned int mode,         // mode for AIC, priority for NVIC

+                            void( *handler )( void )); // ISR

+

+extern void IRQ_EnableIT(unsigned int source);

+

+extern void IRQ_DisableIT(unsigned int source);

+

+#endif //#ifndef IRQ_H

+

diff --git a/peripherals/irq/nvic.c b/peripherals/irq/nvic.c
new file mode 100644
index 0000000..b7d40b2
--- /dev/null
+++ b/peripherals/irq/nvic.c
@@ -0,0 +1,144 @@
+/* ----------------------------------------------------------------------------

+ *         ATMEL Microcontroller Software Support 

+ * ----------------------------------------------------------------------------

+ * Copyright (c) 2008, Atmel Corporation

+ *

+ * All rights reserved.

+ *

+ * Redistribution and use in source and binary forms, with or without

+ * modification, are permitted provided that the following conditions are met:

+ *

+ * - Redistributions of source code must retain the above copyright notice,

+ * this list of conditions and the disclaimer below.

+ *

+ * Atmel's name may not be used to endorse or promote products derived from

+ * this software without specific prior written permission.

+ *

+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR

+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE

+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,

+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,

+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,

+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ * ----------------------------------------------------------------------------

+ */

+

+//------------------------------------------------------------------------------

+//         Headers

+//------------------------------------------------------------------------------

+

+#include "board.h"

+#include "irq.h"

+#include "exceptions.h"

+#include <utility/trace.h>

+

+/// The index of IRQ handler in the exception table

+#define NVIC_IRQ_HANDLER_INDEX     16

+

+//------------------------------------------------------------------------------

+//         Global functions

+//------------------------------------------------------------------------------

+

+//------------------------------------------------------------------------------

+/// Configures an interrupt in the NVIC. The interrupt is identified by its

+/// source (AT91C_ID_xxx) and is configured to a specified priority and

+/// interrupt handler function. priority is the value that will be put in NVIC_IPRx

+/// and the function address will be set in "ExceptionTable". The parameter priority

+/// will include the preemptionPriority and the subPriority, where the subPriority

+/// defined in the B[7:0] of the parameter "priority", and the preemptionPriority defined

+/// in the B[15:8] of the parameter "priority". 

+/// The interrupt is disabled before configuration, so it is useless

+/// to do it before calling this function. When NVIC_ConfigureIT returns, the

+/// interrupt will always be disabled and cleared; it must be enabled by a

+/// call to NVIC_EnableIT().

+/// \param source               Interrupt source to configure.

+/// \param priority              Pre-emption priority (B[15:8] )+ subPriority (B[7:0])

+/// \param handler              Interrupt handler function.

+//------------------------------------------------------------------------------

+void IRQ_ConfigureIT(

+    unsigned int source,

+    //unsigned int preemptionPriority,

+    //unsigned int subPriority,

+    unsigned int priority,

+    IntFunc handler)

+{

+    unsigned int priGroup = __NVIC_PRIO_BITS;

+    unsigned int nPre = 8 - priGroup;

+    unsigned int nSub = priGroup;

+    unsigned int preemptionPriority;

+    unsigned int subPriority;

+    unsigned int IRQpriority;

+

+    preemptionPriority = (priority & 0xff00) >> 8;

+    subPriority = (priority & 0xff);

+

+    // Disable the interrupt first

+    NVIC_DisableIRQ((IRQn_Type)source);

+

+    // Clear any pending status

+    NVIC_ClearPendingIRQ((IRQn_Type)source);

+

+    // Configure interrupt handler

+    //if (handler == 0) handler = IrqHandlerNotUsed;

+      //  GetExceptionTable()[NVIC_IRQ_HANDLER_INDEX + source] = handler;

+

+    if (subPriority >= (0x01 << nSub))

+      subPriority = (0x01 << nSub) - 1;

+    if (preemptionPriority >= (0x01 << nPre))

+      preemptionPriority = (0x01 << nPre) - 1;

+

+    IRQpriority = (subPriority | (preemptionPriority << nSub));

+    NVIC_SetPriority((IRQn_Type)source, IRQpriority);

+}

+

+//------------------------------------------------------------------------------

+/// Enables interrupt coming from the given (unique) source (AT91C_ID_xxx).

+/// \param source  Interrupt source to enable.

+//------------------------------------------------------------------------------

+void IRQ_EnableIT(unsigned int source)

+{

+    NVIC_EnableIRQ((IRQn_Type)source);

+}

+

+//------------------------------------------------------------------------------

+/// Disables interrupt coming from the given (unique) source (AT91C_ID_xxx).

+/// \param source  Interrupt source to disable.

+//------------------------------------------------------------------------------

+void IRQ_DisableIT(unsigned int source)

+{

+    NVIC_DisableIRQ((IRQn_Type)source);

+}

+

+//------------------------------------------------------------------------------

+/// Set interrupt pending bit from the given (unique) source (AT91C_ID_xxx).

+/// \param source  Interrupt source to set.

+//------------------------------------------------------------------------------

+void NVIC_SetPending(unsigned int source)

+{

+    NVIC_SetPendingIRQ((IRQn_Type)source);

+}

+

+//------------------------------------------------------------------------------

+/// Clear interrupt pending bit from the given (unique) source (AT91C_ID_xxx).

+/// \param source  Interrupt source to clear.

+//------------------------------------------------------------------------------

+void NVIC_ClrPending(unsigned int source)

+{

+    NVIC_ClearPendingIRQ((IRQn_Type)source);

+}

+

+#if !defined(USE_CMSIS_on)

+//------------------------------------------------------------------------------

+/// Use the Software Trigger Interrupt Register to pend an interrupt.

+/// \param source Interrupt source to trigger.

+//------------------------------------------------------------------------------

+void NVIC_Swi(unsigned int source)

+{

+    AT91C_BASE_NVIC->NVIC_STIR = source;

+}

+#endif

+

diff --git a/peripherals/irq/nvic.h b/peripherals/irq/nvic.h
new file mode 100644
index 0000000..ff33ab0
--- /dev/null
+++ b/peripherals/irq/nvic.h
@@ -0,0 +1,55 @@
+/* ----------------------------------------------------------------------------

+ *         ATMEL Microcontroller Software Support 

+ * ----------------------------------------------------------------------------

+ * Copyright (c) 2008, Atmel Corporation

+ *

+ * All rights reserved.

+ *

+ * Redistribution and use in source and binary forms, with or without

+ * modification, are permitted provided that the following conditions are met:

+ *

+ * - Redistributions of source code must retain the above copyright notice,

+ * this list of conditions and the disclaimer below.

+ *

+ * Atmel's name may not be used to endorse or promote products derived from

+ * this software without specific prior written permission.

+ *

+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR

+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE

+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,

+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,

+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,

+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ * ----------------------------------------------------------------------------

+ */

+

+//------------------------------------------------------------------------------

+/// \unit

+///

+/// !Purpose

+/// 

+/// Methods and definitions for configuring interrupts using the Nested

+/// Vectored Interrupt Controller (NVIC).

+/// 

+/// !Usage

+///

+/// -# Configure interrupt source by implementing specific functions and define

+///    ...

+/// -# Configure the interrupt settings using NVIC_ConfigureIT

+/// -# Enable or disable interrupt generation of a particular source with

+///    NVIC_EnableIT and NVIC_DisableIT.

+///

+/// \note Most of the time, peripheral interrupts must be also configured

+/// inside the peripheral itself.

+//------------------------------------------------------------------------------

+

+#ifndef NVIC_H

+#define NVIC_H

+

+

+#endif //#ifndef NVIC_H

+