diff options
Diffstat (limited to 'drivers/fsl_common.c')
| -rw-r--r-- | drivers/fsl_common.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/drivers/fsl_common.c b/drivers/fsl_common.c new file mode 100644 index 0000000..903faf5 --- /dev/null +++ b/drivers/fsl_common.c @@ -0,0 +1,192 @@ +/* +* The Clear BSD License +* Copyright (c) 2015-2016, Freescale Semiconductor, Inc. + * Copyright 2016 NXP +* All rights reserved. +* +* +* Redistribution and use in source and binary forms, with or without modification, +* are permitted (subject to the limitations in the disclaimer below) provided +* that the following conditions are met: +* +* o Redistributions of source code must retain the above copyright notice, this list +* of conditions and the following disclaimer. +* +* o Redistributions in binary form must reproduce the above copyright notice, this +* list of conditions and the following disclaimer in the documentation and/or +* other materials provided with the distribution. +* +* o Neither the name of the copyright holder nor the names of its +* contributors may be used to endorse or promote products derived from this +* software without specific prior written permission. +* +* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE. +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 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. +*/ + +#include "fsl_common.h" +#define SDK_MEM_MAGIC_NUMBER 12345U + +typedef struct _mem_align_control_block +{ + uint16_t identifier; /*!< Identifier for the memory control block. */ + uint16_t offset; /*!< offset from aligned adress to real address */ +} mem_align_cb_t; + +/* Component ID definition, used by tools. */ +#ifndef FSL_COMPONENT_ID +#define FSL_COMPONENT_ID "platform.drivers.common" +#endif + + +#ifndef __GIC_PRIO_BITS +#if defined(ENABLE_RAM_VECTOR_TABLE) +uint32_t InstallIRQHandler(IRQn_Type irq, uint32_t irqHandler) +{ +/* Addresses for VECTOR_TABLE and VECTOR_RAM come from the linker file */ +#if defined(__CC_ARM) + extern uint32_t Image$$VECTOR_ROM$$Base[]; + extern uint32_t Image$$VECTOR_RAM$$Base[]; + extern uint32_t Image$$RW_m_data$$Base[]; + +#define __VECTOR_TABLE Image$$VECTOR_ROM$$Base +#define __VECTOR_RAM Image$$VECTOR_RAM$$Base +#define __RAM_VECTOR_TABLE_SIZE (((uint32_t)Image$$RW_m_data$$Base - (uint32_t)Image$$VECTOR_RAM$$Base)) +#elif defined(__ICCARM__) + extern uint32_t __RAM_VECTOR_TABLE_SIZE[]; + extern uint32_t __VECTOR_TABLE[]; + extern uint32_t __VECTOR_RAM[]; +#elif defined(__GNUC__) + extern uint32_t __VECTOR_TABLE[]; + extern uint32_t __VECTOR_RAM[]; + extern uint32_t __RAM_VECTOR_TABLE_SIZE_BYTES[]; + uint32_t __RAM_VECTOR_TABLE_SIZE = (uint32_t)(__RAM_VECTOR_TABLE_SIZE_BYTES); +#endif /* defined(__CC_ARM) */ + uint32_t n; + uint32_t ret; + uint32_t irqMaskValue; + + irqMaskValue = DisableGlobalIRQ(); + if (SCB->VTOR != (uint32_t)__VECTOR_RAM) + { + /* Copy the vector table from ROM to RAM */ + for (n = 0; n < ((uint32_t)__RAM_VECTOR_TABLE_SIZE) / sizeof(uint32_t); n++) + { + __VECTOR_RAM[n] = __VECTOR_TABLE[n]; + } + /* Point the VTOR to the position of vector table */ + SCB->VTOR = (uint32_t)__VECTOR_RAM; + } + + ret = __VECTOR_RAM[irq + 16]; + /* make sure the __VECTOR_RAM is noncachable */ + __VECTOR_RAM[irq + 16] = irqHandler; + + EnableGlobalIRQ(irqMaskValue); + +/* Add for ARM errata 838869, affects Cortex-M4, Cortex-M4F Store immediate overlapping + exception return operation might vector to incorrect interrupt */ +#if defined __CORTEX_M && (__CORTEX_M == 4U) + __DSB(); +#endif + + return ret; +} +#endif /* ENABLE_RAM_VECTOR_TABLE. */ +#endif /* __GIC_PRIO_BITS. */ + +#ifndef QN908XC_SERIES +#if (defined(FSL_FEATURE_SOC_SYSCON_COUNT) && (FSL_FEATURE_SOC_SYSCON_COUNT > 0)) + +void EnableDeepSleepIRQ(IRQn_Type interrupt) +{ + uint32_t intNumber = (uint32_t)interrupt; + +#if (defined(FSL_FEATURE_SYSCON_STARTER_DISCONTINUOUS) && (FSL_FEATURE_SYSCON_STARTER_DISCONTINUOUS == 1)) + { + SYSCON->STARTERP1 = 1u << intNumber; + } +#else + { + uint32_t index = 0; + + while (intNumber >= 32u) + { + index++; + intNumber -= 32u; + } + + SYSCON->STARTERSET[index] = 1u << intNumber; + } +#endif /* FSL_FEATURE_STARTER_DISCONTINUOUS */ + EnableIRQ(interrupt); /* also enable interrupt at NVIC */ +} + +void DisableDeepSleepIRQ(IRQn_Type interrupt) +{ + uint32_t intNumber = (uint32_t)interrupt; + + DisableIRQ(interrupt); /* also disable interrupt at NVIC */ +#if (defined(FSL_FEATURE_SYSCON_STARTER_DISCONTINUOUS) && (FSL_FEATURE_SYSCON_STARTER_DISCONTINUOUS == 1)) + { + SYSCON->STARTERP1 &= ~(1u << intNumber); + } +#else + { + uint32_t index = 0; + + while (intNumber >= 32u) + { + index++; + intNumber -= 32u; + } + + SYSCON->STARTERCLR[index] = 1u << intNumber; + } +#endif /* FSL_FEATURE_STARTER_DISCONTINUOUS */ +} +#endif /* FSL_FEATURE_SOC_SYSCON_COUNT */ + +#endif /* QN908XC_SERIES */ + +void *SDK_Malloc(size_t size, size_t alignbytes) +{ + mem_align_cb_t *p_cb = NULL; + uint32_t alignedsize = SDK_SIZEALIGN(size, alignbytes) + alignbytes + sizeof(mem_align_cb_t); + void *p_align_addr, *p_addr = malloc(alignedsize); + + if (!p_addr) + { + return NULL; + } + + p_align_addr = (void *)SDK_SIZEALIGN((uint32_t)p_addr + sizeof(mem_align_cb_t), alignbytes); + + p_cb = (mem_align_cb_t *)((uint32_t)p_align_addr - 4); + p_cb->identifier = SDK_MEM_MAGIC_NUMBER; + p_cb->offset = (uint32_t)p_align_addr - (uint32_t)p_addr; + + return (void *)p_align_addr; +} + +void SDK_Free(void *ptr) +{ + mem_align_cb_t *p_cb = (mem_align_cb_t *)((uint32_t)ptr - 4); + + if (p_cb->identifier != SDK_MEM_MAGIC_NUMBER) + { + return; + } + + free((void *)((uint32_t)ptr - p_cb->offset)); +} + |