1 /*******************************************************************************
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2 * FreeRTOS+Trace v2.3.0 Recorder Library
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3 * Percepio AB, www.percepio.com
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7 * Contains together with trcPort.c all portability issues of the trace recorder
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11 * This software is copyright Percepio AB. The recorder library is free for
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12 * use together with Percepio products. You may distribute the recorder library
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13 * in its original form, including modifications in trcPort.c and trcPort.h
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14 * given that these modification are clearly marked as your own modifications
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15 * and documented in the initial comment section of these source files.
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16 * This software is the intellectual property of Percepio AB and may not be
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17 * sold or in other ways commercially redistributed without explicit written
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18 * permission by Percepio AB.
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21 * The trace tool and recorder library is being delivered to you AS IS and
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22 * Percepio AB makes no warranty as to its use or performance. Percepio AB does
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23 * not and cannot warrant the performance or results you may obtain by using the
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24 * software or documentation. Percepio AB make no warranties, express or
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25 * implied, as to noninfringement of third party rights, merchantability, or
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26 * fitness for any particular purpose. In no event will Percepio AB, its
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27 * technology partners, or distributors be liable to you for any consequential,
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28 * incidental or special damages, including any lost profits or lost savings,
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29 * even if a representative of Percepio AB has been advised of the possibility
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30 * of such damages, or for any claim by any third party. Some jurisdictions do
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31 * not allow the exclusion or limitation of incidental, consequential or special
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32 * damages, or the exclusion of implied warranties or limitations on how long an
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33 * implied warranty may last, so the above limitations may not apply to you.
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35 * FreeRTOS+Trace is available as Free Edition and in two premium editions.
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36 * You may use the premium features during 30 days for evaluation.
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37 * Download FreeRTOS+Trace at http://www.percepio.com/products/downloads/
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39 * Copyright Percepio AB, 2012.
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41 ******************************************************************************/
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46 /* If FreeRTOS Win32 port */
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50 #define _WIN32_WINNT 0x0600
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52 /* Standard includes. */
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54 #include <windows.h>
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57 /*******************************************************************************
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58 * The Win32 port by default saves the trace to file and then kills the
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59 * program when the recorder is stopped, to facilitate quick, simple tests
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61 ******************************************************************************/
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62 #define WIN32_PORT_SAVE_WHEN_STOPPED 1
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63 #define WIN32_PORT_EXIT_WHEN_STOPPED 1
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65 #define WIN32_PORT_SAVE_WHEN_STOPPED 0
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66 #define WIN32_PORT_EXIT_WHEN_STOPPED 0
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69 #define DIRECTION_INCREMENTING 1
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70 #define DIRECTION_DECREMENTING 2
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72 /******************************************************************************
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75 * PORT_HWIndependent
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76 * A hardware independent fallback option for event timestamping. Provides low
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77 * resolution timestamps based on the OS tick.
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78 * This may be used on the Win32 port, but may also be used on embedded hardware
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79 * platforms. Note that this gives suboptimal display in FreeRTOS+Trace. All
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80 * time durations will be truncated to the OS tick frequency, typically 1 KHz.
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81 * This means that a task or ISR that executes in less than 1 ms get an exection
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82 * time of zero. They are however still visible in FreeRTOS+Trace.
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85 * "Accurate" timestamping based on the Windows permance counter. Note that
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86 * this gives the host machine time, not the simulated FreeRTOS time (tick
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87 * count). The timing of the Win32 FreeRTOS build is not real-time, since it
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88 * depends on the scheduling and tick rate of Windows, which is very slow.
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90 * Officially supported hardware timer ports:
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91 * - PORT_Atmel_AT91SAM7
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92 * - PORT_Atmel_UC3A0
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93 * - PORT_ARM_CortexM
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94 * - PORT_Renesas_RX600
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95 * - PORT_Microchip_dsPIC_AND_PIC24
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97 * We also provide several "unofficial" hardware-specific ports. There have
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98 * been developed by external contributors, and have not yet been verified
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99 * by Percepio AB. Let us know if you have problems getting these to work.
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101 * Unoffical hardware specific ports provided are:
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102 * - PORT_TEXAS_INSTRUMENTS_TMS570
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103 * - PORT_TEXAS_INSTRUMENTS_MSP430
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104 * - PORT_MICROCHIP_PIC32
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105 * - PORT_XILINX_PPC405
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106 * - PORT_XILINX_PPC440
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107 * - PORT_XILINX_MICROBLAZE
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108 * - PORT_NXP_LPC210X
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110 *****************************************************************************/
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112 #define PORT_NOT_SET -1
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114 /*** Officially supported hardware timer ports *******************************/
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115 #define PORT_HWIndependent 0
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116 #define PORT_Win32 1
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117 #define PORT_Atmel_AT91SAM7 2
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118 #define PORT_Atmel_UC3A0 3
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119 #define PORT_ARM_CortexM 4
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120 #define PORT_Renesas_RX600 5
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121 #define PORT_Microchip_dsPIC_AND_PIC24 6
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123 /*** Unofficial ports, provided by external developers, not yet verified *****/
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124 #define PORT_TEXAS_INSTRUMENTS_TMS570 7
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125 #define PORT_TEXAS_INSTRUMENTS_MSP430 8
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126 #define PORT_MICROCHIP_PIC32 9
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127 #define PORT_XILINX_PPC405 10
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128 #define PORT_XILINX_PPC440 11
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129 #define PORT_XILINX_MICROBLAZE 12
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130 #define PORT_NXP_LPC210X 13
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132 /*** Select your port here! **************************************************/
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133 #define SELECTED_PORT PORT_Win32
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134 /*****************************************************************************/
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136 #if (SELECTED_PORT == PORT_NOT_SET)
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137 #error "You need to define SELECTED_PORT here!"
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140 /*******************************************************************************
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141 * IRQ_PRIORITY_ORDER
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143 * Macro which should be defined as an integer of 0 or 1.
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145 * This should be 0 if lower irq priority values implies higher priority
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146 * levels, such as on ARM Cortex M. If the opposite scheme is used, i.e.,
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147 * if higher irq priority values means higher priority, this should be 1.
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149 * This setting is not critical. It is used only to sort and colorize the
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150 * interrupts in priority order, in case you record interrupts using
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151 * the vTraceStoreISRBegin and vTraceStoreISREnd routines.
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153 * We provide this setting for some hardware architectures below:
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154 * - ARM Cortex M: 0 (lower irq priority values are more significant)
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155 * - Atmel AT91SAM7x: 1 (higher irq priority values are more significant)
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156 * - Atmel AVR32: 1 (higher irq priority values are more significant)
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157 * - Renesas RX600: 1 (higher irq priority values are more significant)
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158 * - Microchip PIC24: 0 (lower irq priority values are more significant)
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159 * - Microchip dsPIC: 0 (lower irq priority values are more significant)
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160 * - TI TMS570: 0 (lower irq priority values are more significant)
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161 * - Freescale HCS08: 0 (lower irq priority values are more significant)
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162 * - Freescale HCS12: 0 (lower irq priority values are more significant)
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163 * - PowerPC 405: 0 (lower irq priority values are more significant)
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164 * - PowerPC 440: 0 (lower irq priority values are more significant)
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165 * - Freescale ColdFire: 1 (higher irq priority values are more significant)
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166 * - NXP LPC210x: 0 (lower irq priority values are more significant)
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167 * - MicroBlaze: 0 (lower irq priority values are more significant)
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169 * If your chip is not on the above list, and you perhaps know this detail by
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170 * heart, please inform us by e-mail to support@percepio.com.
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172 ******************************************************************************
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176 * These four HWTC macros provides a hardware isolation layer representing a
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177 * generic hardware timer/counter used for driving the operating system tick,
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178 * such as the SysTick feature of ARM Cortex M3/M4, or the PIT of the Atmel
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181 * HWTC_COUNT: The current value of the counter. This is expected to be reset
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182 * a each tick interrupt. Thus, when the tick handler starts, the counter has
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185 * HWTC_COUNT_DIRECTION: Should be one of:
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186 * - DIRECTION_INCREMENTING - for hardware timer/counters of incrementing type
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187 * such as the PIT on Atmel AT91SAM7X.
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188 * When the counter value reach HWTC_PERIOD, it is reset to zero and the
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189 * interrupt is signaled.
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190 * - DIRECTION_DECREMENTING - for hardware timer/counters of decrementing type
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191 * such as the SysTick on ARM Cortex M3/M4 chips.
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192 * When the counter value reach 0, it is reset to HWTC_PERIOD and the
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193 * interrupt is signaled.
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195 * HWTC_PERIOD: The number of increments or decrements of HWTC_COUNT between
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196 * two tick interrupts. This should preferably be mapped to the reload
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197 * register of the hardware timer, to make it more portable between chips in the
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198 * same family. The macro should in most cases be (reload register + 1).
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200 * HWTC_DIVISOR: If the timer frequency is very high, like on the Cortex M chips
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201 * (where the SysTick runs at the core clock frequency), the "differential
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202 * timestamping" used in the recorder will more frequently insert extra XTS
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203 * events to store the timestamps, which increases the event buffer usage.
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204 * In such cases, to reduce the number of XTS events and thereby get longer
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205 * traces, you use HWTC_DIVISOR to scale down the timestamps and frequency.
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206 * Assuming a OS tick rate of 1 KHz, it is suggested to keep the effective timer
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207 * frequency below 65 MHz to avoid an excessive amount of XTS events. Thus, a
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208 * Cortex M chip running at 72 MHZ should use a HWTC_DIVISOR of 2, while a
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209 * faster chip require a higher HWTC_DIVISOR value.
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211 * The HWTC macros and uiTracePortGetTimeStamp is the main porting issue
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212 * or the trace recorder library. Typically you should not need to change
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213 * the code of uiTracePortGetTimeStamp if using the HWTC macros.
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215 * FREE LICENSE OFFER FROM PERCEPIO
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217 * For silicon companies and non-corporate FreeRTOS users (researchers, students,
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218 * hobbyists or early-phase startups) we have the following offer:
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219 * Provide a hardware port for our FreeRTOS recorder and get a FREE single-user
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220 * license for FreeRTOS+Trace Professional Edition. Read more about this offer
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221 * at www.percepio.com or contact us directly at support@percepio.com.
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223 ******************************************************************************/
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225 #if (SELECTED_PORT == PORT_Win32)
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227 #define HWTC_COUNT_DIRECTION DIRECTION_INCREMENTING
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228 #define HWTC_COUNT (ulGetRunTimeCounterValue())
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229 #define HWTC_PERIOD 0
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230 #define HWTC_DIVISOR 1
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232 #define IRQ_PRIORITY_ORDER 1 // Please update according to your hardware...
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234 #elif (SELECTED_PORT == PORT_HWIndependent)
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236 #define HWTC_COUNT_DIRECTION DIRECTION_INCREMENTING
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237 #define HWTC_COUNT 0
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238 #define HWTC_PERIOD 1
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239 #define HWTC_DIVISOR 1
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241 #define IRQ_PRIORITY_ORDER 1 // Please update according to your hardware...
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243 #elif (SELECTED_PORT == PORT_Atmel_AT91SAM7)
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245 /* HWTC_PERIOD is hardcoded for AT91SAM7X256-EK Board (48 MHz)
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246 A more generic solution is to get the period from pxPIT->PITC_PIMR */
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248 #define HWTC_COUNT_DIRECTION DIRECTION_INCREMENTING
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249 #define HWTC_COUNT (AT91C_BASE_PITC->PITC_PIIR & 0xFFFFF)
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250 #define HWTC_PERIOD 2995
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251 #define HWTC_DIVISOR 1
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253 #define IRQ_PRIORITY_ORDER 1 // higher irq priority values are more significant
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255 #elif (SELECTED_PORT == PORT_Atmel_UC3A0)
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257 /* For Atmel AVR32 (AT32UC3A) */
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259 #define HWTC_COUNT_DIRECTION DIRECTION_INCREMENTING
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260 #define HWTC_COUNT sysreg_read(AVR32_COUNT)
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261 #define HWTC_PERIOD ( configCPU_CLOCK_HZ / configTICK_RATE_HZ )
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262 #define HWTC_DIVISOR 1
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264 #define IRQ_PRIORITY_ORDER 1 // higher irq priority values are more significant
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266 #elif (SELECTED_PORT == PORT_ARM_CortexM)
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268 /* For all chips using ARM Cortex M cores */
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270 #define HWTC_COUNT_DIRECTION DIRECTION_DECREMENTING
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271 #define HWTC_COUNT (*((uint32_t*)0xE000E018))
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272 #define HWTC_PERIOD ((*(uint32_t*)0xE000E014) + 1)
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273 #define HWTC_DIVISOR 2
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275 #define IRQ_PRIORITY_ORDER 0 // lower irq priority values are more significant
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277 #elif (SELECTED_PORT == PORT_Renesas_RX600)
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279 #include "iodefine.h"
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281 #define HWTC_COUNT_DIRECTION DIRECTION_INCREMENTING
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282 #define HWTC_COUNT (CMT0.CMCNT)
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283 #define HWTC_PERIOD ((((configPERIPHERAL_CLOCK_HZ/configTICK_RATE_HZ)-1)/8))
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284 #define HWTC_DIVISOR 1
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286 #define IRQ_PRIORITY_ORDER 1 // higher irq priority values are more significant
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288 #elif (SELECTED_PORT == PORT_Microchip_dsPIC_AND_PIC24)
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290 /* For Microchip PIC24 and dsPIC (16 bit) */
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292 /* Note: The trace library was originally designed for 32-bit MCUs, and is slower
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293 than intended on 16-bit MCUs. Storing an event on a PIC24 takes about 70 µs.
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294 In comparison, 32-bit MCUs are often 10-20 times faster. If recording overhead
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295 becomes a problem on PIC24, use the filters to exclude less interresting tasks
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296 or system calls. */
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298 #define HWTC_COUNT_DIRECTION DIRECTION_INCREMENTING
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299 #define HWTC_COUNT (TMR1)
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300 #define HWTC_PERIOD (PR1+1)
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301 #define HWTC_DIVISOR 1
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303 #define IRQ_PRIORITY_ORDER 0 // lower irq priority values are more significant
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305 #elif (SELECTED_PORT == PORT_NXP_LPC210X)
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306 /* UNOFFICIAL PORT - NOT YET VERIFIED BY PERCEPIO */
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308 /* Tested with LPC2106, but should work with most LPC21XX chips.
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309 Assumption: prescaler is 1:1 (this setting is hardcoded in
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310 FreeRTOS port for LPC21XX) */
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312 #define HWTC_COUNT_DIRECTION DIRECTION_INCREMENTING
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313 #define HWTC_COUNT *((uint32_t *)0xE0004008 )
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314 #define HWTC_PERIOD ( configCPU_CLOCK_HZ / configTICK_RATE_HZ )
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315 #define HWTC_DIVISOR 1
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317 #define IRQ_PRIORITY_ORDER 0 // lower irq priority values are more significant
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319 #elif (SELECTED_PORT == PORT_TEXAS_INSTRUMENTS_TMS570)
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320 /* UNOFFICIAL PORT - NOT YET VERIFIED BY PERCEPIO */
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322 #define RTIFRC0 *((uint32_t *)0xFFFFFC10)
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323 #define RTICOMP0 *((uint32_t *)0xFFFFFC50)
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324 #define RTIUDCP0 *((uint32_t *)0xFFFFFC54)
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325 #define HWTC_COUNT_DIRECTION DIRECTION_INCREMENTING
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326 #define HWTC_COUNT (RTIFRC0 - (RTICOMP0 - RTIUDCP0))
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327 #define HWTC_PERIOD (RTIUDCP0)
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328 #define HWTC_DIVISOR 1
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330 #define IRQ_PRIORITY_ORDER 0 // lower irq priority values are more significant
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332 #elif (SELECTED_PORT == PORT_TEXAS_INSTRUMENTS_MSP430)
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333 /* UNOFFICIAL PORT - NOT YET VERIFIED BY PERCEPIO */
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335 #define HWTC_COUNT_DIRECTION DIRECTION_INCREMENTING
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336 #define HWTC_COUNT (TA0R)
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337 #define HWTC_PERIOD configCPU_CLOCKS_PER_TICK
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338 #define HWTC_DIVISOR 1
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340 #define IRQ_PRIORITY_ORDER 1 // higher irq priority values are more significant
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342 #elif (SELECTED_PORT == PORT_MICROCHIP_PIC32)
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343 /* UNOFFICIAL PORT - NOT YET VERIFIED BY PERCEPIO */
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345 #define HWTC_COUNT_DIRECTION DIRECTION_INCREMENTING
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346 #define HWTC_COUNT (ReadTimer1()) /* Should be available in BSP */
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347 #define HWTC_PERIOD (ReadPeriod1()+1) /* Should be available in BSP */
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348 #define HWTC_DIVISOR 1
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350 #define IRQ_PRIORITY_ORDER 0 // lower irq priority values are more significant
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352 #elif (SELECTED_PORT == PORT_XILINX_PPC405)
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353 /* UNOFFICIAL PORT - NOT YET VERIFIED BY PERCEPIO */
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355 #define HWTC_COUNT_DIRECTION DIRECTION_DECREMENTING
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356 #define HWTC_COUNT mfspr( 0x3db)
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357 #define HWTC_PERIOD ( configCPU_CLOCK_HZ / configTICK_RATE_HZ )
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358 #define HWTC_DIVISOR 1
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360 #define IRQ_PRIORITY_ORDER 0 // lower irq priority values are more significant
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362 #elif (SELECTED_PORT == PORT_XILINX_PPC440)
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363 /* UNOFFICIAL PORT - NOT YET VERIFIED BY PERCEPIO */
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365 /* This should work with most PowerPC chips */
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367 #define HWTC_COUNT_DIRECTION DIRECTION_DECREMENTING
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368 #define HWTC_COUNT mfspr( 0x016 )
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369 #define HWTC_PERIOD ( configCPU_CLOCK_HZ / configTICK_RATE_HZ )
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370 #define HWTC_DIVISOR 1
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372 #define IRQ_PRIORITY_ORDER 0 // lower irq priority values are more significant
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374 #elif (SELECTED_PORT == PORT_XILINX_MICROBLAZE)
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375 /* UNOFFICIAL PORT - NOT YET VERIFIED BY PERCEPIO */
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377 /* This should work with most Microblaze configurations
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378 * This port is based on the official FreeRTOS Microlaze port and example application.
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379 * It uses the AXI Timer 0 - the tick interrupt source.
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380 * If an AXI Timer 0 peripheral is available on your hardware platform, no modifications are required.
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382 #include "xtmrctr_l.h"
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384 #define HWTC_COUNT_DIRECTION DIRECTION_DECREMENTING
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385 #define HWTC_COUNT XTmrCtr_GetTimerCounterReg( XPAR_TMRCTR_0_BASEADDR, 0 )
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386 #define HWTC_PERIOD ( configCPU_CLOCK_HZ / configTICK_RATE_HZ )
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387 #define HWTC_DIVISOR 16
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389 #define IRQ_PRIORITY_ORDER 0 // lower irq priority values are more significant
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391 #elif (SELECTED_PORT != PORT_NOT_SET)
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393 #error "SELECTED_PORT had unsupported value!"
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394 #define SELECTED_PORT PORT_NOT_SET
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398 #if (SELECTED_PORT != PORT_NOT_SET)
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400 #ifndef HWTC_COUNT_DIRECTION
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401 #error "HWTC_COUNT_DIRECTION is not set!"
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405 #error "HWTC_COUNT is not set!"
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408 #ifndef HWTC_PERIOD
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409 #error "HWTC_PERIOD is not set!"
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412 #ifndef HWTC_DIVISOR
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413 #error "HWTC_DIVISOR is not set!"
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416 #ifndef IRQ_PRIORITY_ORDER
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417 #error "IRQ_PRIORITY_ORDER is not set!"
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418 #elif (IRQ_PRIORITY_ORDER != 0) && (IRQ_PRIORITY_ORDER != 1)
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419 #error "IRQ_PRIORITY_ORDER has bad value!"
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422 #if (HWTC_DIVISOR < 1)
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423 #error "HWTC_DIVISOR must be a non-zero positive value!"
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427 /*******************************************************************************
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428 * vTraceConsoleMessage
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430 * A wrapper for your system-specific console "printf" console output function.
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431 * This needs to be correctly defined to see status reports from the trace
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432 * status monitor task (this is defined in trcUser.c).
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433 ******************************************************************************/
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434 #if (SELECTED_PORT == PORT_Atmel_AT91SAM7)
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435 /* Port specific includes */
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436 #include "console.h"
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439 #define vTraceConsoleMessage(x)
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441 /*******************************************************************************
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442 * uiTracePortGetTimeStamp
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444 * Returns the current time based on the HWTC macros which provide a hardware
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445 * isolation layer towards the hardware timer/counter.
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447 * The HWTC macros and uiTracePortGetTimeStamp is the main porting issue
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448 * or the trace recorder library. Typically you should not need to change
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449 * the code of uiTracePortGetTimeStamp if using the HWTC macros.
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451 * OFFER FROM PERCEPIO:
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452 * For silicon companies and non-corporate FreeRTOS users (researchers,
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453 * students, hobbyists or early-phase startups) we have an attractive offer:
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454 * Provide a hardware timer port and get a FREE single-user licence for
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455 * FreeRTOS+Trace Professional Edition. Read more about this offer at
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456 * www.percepio.com or contact us directly at support@percepio.com.
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457 ******************************************************************************/
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458 void uiTracePortGetTimeStamp(uint32_t *puiTimestamp);
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460 /*******************************************************************************
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463 * This function is called when the recorder is stopped due to full buffer.
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464 * Mainly intended to show a message in the console.
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465 * This is used by the Win32 port to store the trace to a file. The file path is
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466 * set using vTracePortSetFileName.
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467 ******************************************************************************/
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468 void vTracePortEnd(void);
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470 #if (INCLUDE_SAVE_TO_FILE == 1)
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472 /*******************************************************************************
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473 * vTracePortSetOutFile
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475 * Sets the filename/path used in vTracePortSave.
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476 * This is set in a separate function, since the Win32 port calls vTracePortSave
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477 * in vTracePortEnd if WIN32_PORT_SAVE_WHEN_STOPPED is set.
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478 ******************************************************************************/
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479 void vTracePortSetOutFile(char* path);
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481 /******************************************************************************
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484 * Saves the trace to a file on a target-side file system. The path is set in a
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485 * separate function, vTracePortSetOutFile, since the Win32 port may call
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486 * vTracePortSave in vTracePortEnd, if using WIN32_PORT_SAVE_WHEN_STOPPED.
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487 ******************************************************************************/
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488 void vTracePortSave(void);
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