| /****************************************************************************** |
| * Filename: rfc.c |
| * Revised: 2016-05-27 08:27:46 +0200 (Fri, 27 May 2016) |
| * Revision: 46517 |
| * |
| * Description: Driver for the RF Core. |
| * |
| * Copyright (c) 2015 - 2016, Texas Instruments Incorporated |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1) Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * |
| * 2) 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. |
| * |
| * 3) Neither the name of the ORGANIZATION nor the names of its contributors may |
| * be used to endorse or promote products derived from this software without |
| * specific prior written permission. |
| * |
| * 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 <driverlib/rfc.h> |
| #include <string.h> |
| |
| //***************************************************************************** |
| // |
| // Handle support for DriverLib in ROM: |
| // This section will undo prototype renaming made in the header file |
| // |
| //***************************************************************************** |
| #if !defined(DOXYGEN) |
| #undef RFCCpeIntGetAndClear |
| #define RFCCpeIntGetAndClear NOROM_RFCCpeIntGetAndClear |
| #undef RFCDoorbellSendTo |
| #define RFCDoorbellSendTo NOROM_RFCDoorbellSendTo |
| #undef RFCSynthPowerDown |
| #define RFCSynthPowerDown NOROM_RFCSynthPowerDown |
| #undef RFCRfTrimRead |
| #define RFCRfTrimRead NOROM_RFCRfTrimRead |
| #undef RFCRfTrimSet |
| #define RFCRfTrimSet NOROM_RFCRfTrimSet |
| #undef RFCRTrim |
| #define RFCRTrim NOROM_RFCRTrim |
| #undef RFCCPEPatchReset |
| #define RFCCPEPatchReset NOROM_RFCCPEPatchReset |
| #undef RFCAdi3VcoLdoVoltageMode |
| #define RFCAdi3VcoLdoVoltageMode NOROM_RFCAdi3VcoLdoVoltageMode |
| #endif |
| |
| #define RFC_RESERVED0 0x40044108 |
| #define RFC_RESERVED1 0x40044114 |
| #define RFC_RESERVED2 0x4004410C |
| #define RFC_RESERVED3 0x40044100 |
| |
| // Position of divider value |
| #define CONFIG_MISC_ADC_DIVIDER 27 |
| #define CONFIG_MISC_ADC_DIVIDER_BM 0xF8000000U |
| |
| #define _CPERAM_START 0x21000000 |
| #define _PARSER_PATCH_TAB_OFFSET 0x0334 |
| #define _PATCH_TAB_OFFSET 0x033C |
| #define _IRQPATCH_OFFSET 0x03AC |
| #define _PATCH_VEC_OFFSET 0x0404 |
| |
| static const uint16_t rfc_defaultIrqAddr[] = |
| { |
| 0x398b, |
| 0x3805, |
| 0x3825, |
| 0x3839, |
| 0x0acf, |
| 0x3857, |
| 0x38d7, |
| 0x09dd, |
| 0x5819, |
| 0x0ab3, |
| 0x38f7, |
| }; |
| |
| //***************************************************************************** |
| // |
| // Get and clear CPE interrupt flags |
| // |
| //***************************************************************************** |
| uint32_t |
| RFCCpeIntGetAndClear(void) |
| { |
| uint32_t ui32Ifg = HWREG(RFC_DBELL_BASE+RFC_DBELL_O_RFCPEIFG); |
| |
| do { |
| HWREG(RFC_DBELL_BASE+RFC_DBELL_O_RFCPEIFG) = ~ui32Ifg; |
| } while (HWREG(RFC_DBELL_BASE+RFC_DBELL_O_RFCPEIFG) & ui32Ifg); |
| |
| return (ui32Ifg); |
| } |
| |
| |
| //***************************************************************************** |
| // |
| // Send command to doorbell and wait for ack |
| // |
| //***************************************************************************** |
| uint32_t |
| RFCDoorbellSendTo(uint32_t pOp) |
| { |
| while(HWREG(RFC_DBELL_BASE + RFC_DBELL_O_CMDR) != 0); |
| |
| RFCAckIntClear(); |
| |
| HWREG(RFC_DBELL_BASE+RFC_DBELL_O_CMDR) = pOp; |
| |
| while(!HWREG(RFC_DBELL_BASE + RFC_DBELL_O_RFACKIFG)); |
| RFCAckIntClear(); |
| |
| return(HWREG(RFC_DBELL_BASE + RFC_DBELL_O_CMDSTA)); |
| } |
| |
| |
| //***************************************************************************** |
| // |
| // Turn off synth, NOTE: Radio will no longer respond to commands! |
| // |
| //***************************************************************************** |
| void |
| RFCSynthPowerDown() |
| { |
| // Disable CPE clock, enable FSCA clock. NOTE: Radio will no longer respond to commands! |
| HWREG(RFC_PWR_NONBUF_BASE + RFC_PWR_O_PWMCLKEN) = (HWREG(RFC_PWR_NONBUF_BASE + RFC_PWR_O_PWMCLKEN) & ~RFC_PWR_PWMCLKEN_CPE_M) | RFC_PWR_PWMCLKEN_FSCA_M; |
| |
| (*((volatile unsigned long *)(RFC_RESERVED0))) = 3; |
| (*((volatile unsigned long *)(RFC_RESERVED1))) = 0x1030; |
| (*((volatile unsigned long *)(RFC_RESERVED2))) = 1; |
| (*((volatile unsigned long *)(RFC_RESERVED1))) = 0x50; |
| (*((volatile unsigned long *)(RFC_RESERVED2))) = 1; |
| (*((volatile unsigned long *)(RFC_RESERVED1))) = 0x650; |
| (*((volatile unsigned long *)(RFC_RESERVED2))) = 1; |
| (*((volatile unsigned long *)(RFC_RESERVED3))) = 1; |
| } |
| |
| |
| //***************************************************************************** |
| // |
| // Read RF Trim from flash using the CM3 |
| // |
| //***************************************************************************** |
| void RFCRfTrimRead(rfc_radioOp_t *pOpSetup, rfTrim_t* pRfTrim) |
| { |
| (void)pOpSetup; |
| // Read trim from FCFG1 |
| pRfTrim->configIfAdc = HWREG(FCFG1_BASE + FCFG1_O_CONFIG_IF_ADC); |
| pRfTrim->configRfFrontend = HWREG(FCFG1_BASE + FCFG1_O_CONFIG_RF_FRONTEND); |
| pRfTrim->configSynth = HWREG(FCFG1_BASE + FCFG1_O_CONFIG_SYNTH); |
| // Make sure configMiscAdc is not 0 by setting an unused bit to 1 |
| pRfTrim->configMiscAdc = (HWREG(FCFG1_BASE + FCFG1_O_CONFIG_MISC_ADC) |
| & ~CONFIG_MISC_ADC_DIVIDER_BM) | (2U << CONFIG_MISC_ADC_DIVIDER); |
| } |
| |
| |
| //***************************************************************************** |
| // |
| // Check Override RTrim vs FCFG RTrim |
| // |
| //***************************************************************************** |
| void RFCRTrim(rfc_radioOp_t *pOpSetup) |
| { |
| (void)pOpSetup; |
| // Function is left blank for compatibility with CC13xx. |
| } |
| |
| |
| //***************************************************************************** |
| // |
| // Write preloaded RF trim values to CM0 |
| // |
| //***************************************************************************** |
| void RFCRfTrimSet(rfTrim_t* pRfTrim) |
| { |
| memcpy((void*)&HWREG(0x21000018), (void*)pRfTrim, sizeof(rfTrim_t)); |
| } |
| |
| |
| //***************************************************************************** |
| // |
| // Reset previously patched CPE RAM to a state where it can be patched again |
| // |
| //***************************************************************************** |
| void RFCCPEPatchReset(void) |
| { |
| uint8_t *pPatchTab = (uint8_t *) (_CPERAM_START + _PARSER_PATCH_TAB_OFFSET); |
| uint32_t *pIrqPatch = (uint32_t *) (_CPERAM_START + _IRQPATCH_OFFSET); |
| |
| memset(pPatchTab, 0xFF, _IRQPATCH_OFFSET - _PARSER_PATCH_TAB_OFFSET); |
| |
| unsigned int i; |
| for (i = 0; i < sizeof(rfc_defaultIrqAddr)/sizeof(rfc_defaultIrqAddr[0]); i++) |
| { |
| pIrqPatch[i * 2 + 1] = rfc_defaultIrqAddr[i]; |
| } |
| } |
| |
| |
| //***************************************************************************** |
| // |
| // Function to set VCOLDO reference to voltage mode |
| // |
| //***************************************************************************** |
| void RFCAdi3VcoLdoVoltageMode(bool bEnable) |
| { |
| (void)bEnable; |
| // Function is left blank for compatibility with CC13xx. |
| } |
| |
| |
| |
| //***************************************************************************** |
| // |
| // Handle support for DriverLib in ROM: |
| // This section will undo prototype renaming made in the header file |
| // |
| //***************************************************************************** |
| #if !defined(DOXYGEN) |
| #undef RFCCpeIntGetAndClear |
| #define RFCCpeIntGetAndClear NOROM_RFCCpeIntGetAndClear |
| #undef RFCDoorbellSendTo |
| #define RFCDoorbellSendTo NOROM_RFCDoorbellSendTo |
| #undef RFCSynthPowerDown |
| #define RFCSynthPowerDown NOROM_RFCSynthPowerDown |
| #undef RFCRfTrimRead |
| #define RFCRfTrimRead NOROM_RFCRfTrimRead |
| #undef RFCRfTrimSet |
| #define RFCRfTrimSet NOROM_RFCRfTrimSet |
| #undef RFCRTrim |
| #define RFCRTrim NOROM_RFCRTrim |
| #undef RFCCPEPatchReset |
| #define RFCCPEPatchReset NOROM_RFCCPEPatchReset |
| #undef RFCAdi3VcoLdoVoltageMode |
| #define RFCAdi3VcoLdoVoltageMode NOROM_RFCAdi3VcoLdoVoltageMode |
| #endif |
| |
| // See rfc.h for implementation |
