From: asterix <asterix@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Fri, 15 Oct 2010 16:33:49 +0000 (+0000)
Subject: Put the specific random cpu backend to correct dir.
X-Git-Tag: 2.6.0~5^2~89
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=05b576afecd2ac6f391250a9248861c7855eefd2;p=bertos.git

Put the specific random cpu backend to correct dir.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4431 38d2e660-2303-0410-9eaa-f027e97ec537
---

diff --git a/bertos/cpu/cortex-m3/drv/random_lm3s.c b/bertos/cpu/cortex-m3/drv/random_lm3s.c
new file mode 100644
index 00000000..71ce64d5
--- /dev/null
+++ b/bertos/cpu/cortex-m3/drv/random_lm3s.c
@@ -0,0 +1,93 @@
+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \brief LM3 backend implementation entropy pulling.
+ * \author Giovanni Bajo <rasky@develer.com>
+ */
+
+#include "random_p.h"
+
+#include <cpu/power.h>
+
+#include <io/cm3.h>
+
+#include <drv/clock_cm3.h>
+
+/*
+ * Return the cpu core temperature in raw format
+ */
+INLINE uint16_t hw_readRawTemp(void)
+{
+    /* Trig the temperature sampling */
+    HWREG(ADC0_BASE + ADC_O_PSSI) |= ADC_PSSI_SS3;
+
+	while (!(HWREG(ADC0_BASE + ADC_O_SSFSTAT3) & ADC_SSFSTAT3_FULL))
+		cpu_relax();
+
+    return (uint16_t)HWREG(ADC0_BASE + ADC_O_SSFIFO3);
+}
+
+INLINE void hw_initIntTemp(void)
+{
+    SYSCTL_RCGC0_R |= SYSCTL_RCGC0_ADC0;
+
+	lm3s_busyWait(10);
+
+    /* Disable all sequence */
+    HWREG(ADC0_BASE + ADC_O_ACTSS) = 0;
+    /* Set trigger event to programmed (for all sequence) */
+    HWREG(ADC0_BASE + ADC_O_EMUX) = 0;
+    /* Enalbe read of temperature sensor */
+    HWREG(ADC0_BASE + ADC_O_SSCTL3) |= ADC_SSCTL3_TS0;
+    /* Enable sequence S03 (single sample on select channel) */
+    HWREG(ADC0_BASE + ADC_O_ACTSS) |= ADC_ACTSS_ASEN3;
+}
+
+
+void random_pull_entropy(uint8_t *entropy, size_t len)
+{
+	// We use the internal temperature sensor of LM3S as a source of entropy.
+	// The last bit of the acquisition is very variable and with a decent distribution
+	// to consider it "entropic". It does not really matter because it will
+	// go through a randomness extractor anyway.
+	hw_initIntTemp();
+
+	for (size_t j=0; j<len; j++)
+	{
+		uint8_t accum = 0;
+		for (int b=0; b<8; ++b)
+			if (hw_readRawTemp() & 1)
+				accum |= 1<<b;
+
+		*entropy++ = accum;
+	}
+}
diff --git a/bertos/cpu/cortex-m3/drv/random_stm32.c b/bertos/cpu/cortex-m3/drv/random_stm32.c
new file mode 100644
index 00000000..a975abe1
--- /dev/null
+++ b/bertos/cpu/cortex-m3/drv/random_stm32.c
@@ -0,0 +1,109 @@
+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \brief STM32 backend implementation entropy pulling.
+ * \author Daniele Basile <asterix@develer.com>
+ *
+ */
+
+#include <sec/random_p.h>
+
+#include <cpu/power.h>
+
+#include <drv/clock_cm3.h>
+
+#include <io/cm3.h>
+
+struct stm32_adc *adc = (struct stm32_adc *)ADC1_BASE;
+
+/*
+ * Return the cpu core temperature in raw format
+ */
+INLINE uint16_t hw_readRawTemp(void)
+{
+	/* We sample only from one channel */
+	adc->SQR1 |= BV(SQR1_SQ_LEN_SHIFT);
+	adc->SQR3 = (ADC_TEMP_CH & SQR3_SQ_MASK);
+
+	/* Start convertion */
+	adc->CR2 |= CR2_EXTTRIG_SWSTRT_SET;
+
+	/* Wait in polling until conversion is done */
+	while (!(adc->SR & BV(SR_EOC)))
+		cpu_relax();
+
+	/* Return the last converted data */
+    return (uint16_t)adc->DR;
+}
+
+INLINE void hw_initIntTemp(void)
+{
+	RCC->APB2ENR |= RCC_APB2_ADC1;
+
+	/* Reset registry */
+	adc->CR1 = 0;
+	adc->CR2 = 0;
+	adc->SQR1 = 0;
+	adc->SQR2 = 0;
+	adc->SQR3 = 0;
+
+	/*
+	 * Configure ADC
+	 *  - Regular mode
+	 *  - Wake up adc
+	 *  - Wake up temperature and Vrefint
+	 */
+	adc->CR2 |= BV(CR2_ADON) | ADC_EXTERNALTRIGCONV_NONE | BV(CR2_TSVREFE);
+
+	/* Set 17.1usec sampling time*/
+	adc->SMPR1 |= ((ADC_SAMPLETIME_239CYCLES5 << SMPR1_CH17) | (ADC_SAMPLETIME_239CYCLES5 << SMPR1_CH16));
+}
+
+
+void random_pull_entropy(uint8_t *entropy, size_t len)
+{
+	// We use the internal temperature sensor of LM3S as a source of entropy.
+	// The last bit of the acquisition is very variable and with a decent distribution
+	// to consider it "entropic". It does not really matter because it will
+	// go through a randomness extractor anyway.
+	hw_initIntTemp();
+
+	for (size_t j=0; j<len; j++)
+	{
+		uint8_t accum = 0;
+		for (int b=0; b<8; ++b)
+			if (hw_readRawTemp() & 1)
+				accum |= 1<<b;
+
+		*entropy++ = accum;
+	}
+}
diff --git a/bertos/sec/random_lm3s.c b/bertos/sec/random_lm3s.c
deleted file mode 100644
index 71ce64d5..00000000
--- a/bertos/sec/random_lm3s.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/**
- * \file
- * <!--
- * This file is part of BeRTOS.
- *
- * Bertos is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
- * As a special exception, you may use this file as part of a free software
- * library without restriction.  Specifically, if other files instantiate
- * templates or use macros or inline functions from this file, or you compile
- * this file and link it with other files to produce an executable, this
- * file does not by itself cause the resulting executable to be covered by
- * the GNU General Public License.  This exception does not however
- * invalidate any other reasons why the executable file might be covered by
- * the GNU General Public License.
- *
- * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
- *
- * -->
- *
- * \brief LM3 backend implementation entropy pulling.
- * \author Giovanni Bajo <rasky@develer.com>
- */
-
-#include "random_p.h"
-
-#include <cpu/power.h>
-
-#include <io/cm3.h>
-
-#include <drv/clock_cm3.h>
-
-/*
- * Return the cpu core temperature in raw format
- */
-INLINE uint16_t hw_readRawTemp(void)
-{
-    /* Trig the temperature sampling */
-    HWREG(ADC0_BASE + ADC_O_PSSI) |= ADC_PSSI_SS3;
-
-	while (!(HWREG(ADC0_BASE + ADC_O_SSFSTAT3) & ADC_SSFSTAT3_FULL))
-		cpu_relax();
-
-    return (uint16_t)HWREG(ADC0_BASE + ADC_O_SSFIFO3);
-}
-
-INLINE void hw_initIntTemp(void)
-{
-    SYSCTL_RCGC0_R |= SYSCTL_RCGC0_ADC0;
-
-	lm3s_busyWait(10);
-
-    /* Disable all sequence */
-    HWREG(ADC0_BASE + ADC_O_ACTSS) = 0;
-    /* Set trigger event to programmed (for all sequence) */
-    HWREG(ADC0_BASE + ADC_O_EMUX) = 0;
-    /* Enalbe read of temperature sensor */
-    HWREG(ADC0_BASE + ADC_O_SSCTL3) |= ADC_SSCTL3_TS0;
-    /* Enable sequence S03 (single sample on select channel) */
-    HWREG(ADC0_BASE + ADC_O_ACTSS) |= ADC_ACTSS_ASEN3;
-}
-
-
-void random_pull_entropy(uint8_t *entropy, size_t len)
-{
-	// We use the internal temperature sensor of LM3S as a source of entropy.
-	// The last bit of the acquisition is very variable and with a decent distribution
-	// to consider it "entropic". It does not really matter because it will
-	// go through a randomness extractor anyway.
-	hw_initIntTemp();
-
-	for (size_t j=0; j<len; j++)
-	{
-		uint8_t accum = 0;
-		for (int b=0; b<8; ++b)
-			if (hw_readRawTemp() & 1)
-				accum |= 1<<b;
-
-		*entropy++ = accum;
-	}
-}
diff --git a/bertos/sec/random_stm32.c b/bertos/sec/random_stm32.c
deleted file mode 100644
index d321ef0b..00000000
--- a/bertos/sec/random_stm32.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/**
- * \file
- * <!--
- * This file is part of BeRTOS.
- *
- * Bertos is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
- * As a special exception, you may use this file as part of a free software
- * library without restriction.  Specifically, if other files instantiate
- * templates or use macros or inline functions from this file, or you compile
- * this file and link it with other files to produce an executable, this
- * file does not by itself cause the resulting executable to be covered by
- * the GNU General Public License.  This exception does not however
- * invalidate any other reasons why the executable file might be covered by
- * the GNU General Public License.
- *
- * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
- *
- * -->
- *
- * \brief STM32 backend implementation entropy pulling.
- * \author Daniele Basile <asterix@develer.com>
- *
- */
-
-#include "random_p.h"
-
-#include <cpu/power.h>
-
-#include <drv/clock_cm3.h>
-
-#include <io/cm3.h>
-
-struct stm32_adc *adc = (struct stm32_adc *)ADC1_BASE;
-
-/*
- * Return the cpu core temperature in raw format
- */
-INLINE uint16_t hw_readRawTemp(void)
-{
-	/* We sample only from one channel */
-	adc->SQR1 |= BV(SQR1_SQ_LEN_SHIFT);
-	adc->SQR3 = (ADC_TEMP_CH & SQR3_SQ_MASK);
-
-	/* Start convertion */
-	adc->CR2 |= CR2_EXTTRIG_SWSTRT_SET;
-
-	/* Wait in polling until conversion is done */
-	while (!(adc->SR & BV(SR_EOC)))
-		cpu_relax();
-
-	/* Return the last converted data */
-    return (uint16_t)adc->DR;
-}
-
-INLINE void hw_initIntTemp(void)
-{
-	RCC->APB2ENR |= RCC_APB2_ADC1;
-
-	/* Reset registry */
-	adc->CR1 = 0;
-	adc->CR2 = 0;
-	adc->SQR1 = 0;
-	adc->SQR2 = 0;
-	adc->SQR3 = 0;
-
-	/*
-	 * Configure ADC
-	 *  - Regular mode
-	 *  - Wake up adc
-	 *  - Wake up temperature and Vrefint
-	 */
-	adc->CR2 |= BV(CR2_ADON) | ADC_EXTERNALTRIGCONV_NONE | BV(CR2_TSVREFE);
-
-	/* Set 17.1usec sampling time*/
-	adc->SMPR1 |= ((ADC_SAMPLETIME_239CYCLES5 << SMPR1_CH17) | (ADC_SAMPLETIME_239CYCLES5 << SMPR1_CH16));
-}
-
-
-void random_pull_entropy(uint8_t *entropy, size_t len)
-{
-	// We use the internal temperature sensor of LM3S as a source of entropy.
-	// The last bit of the acquisition is very variable and with a decent distribution
-	// to consider it "entropic". It does not really matter because it will
-	// go through a randomness extractor anyway.
-	hw_initIntTemp();
-
-	for (size_t j=0; j<len; j++)
-	{
-		uint8_t accum = 0;
-		for (int b=0; b<8; ++b)
-			if (hw_readRawTemp() & 1)
-				accum |= 1<<b;
-
-		*entropy++ = accum;
-	}
-}