Move handle clock macros into a header file

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1120 42af7a65-404d-4744-a932-0658087f49c3

arch/arm/src/str71x/str71x_internal.h

@@ -0,0 +1,95 @@
+/************************************************************************************
+ * arch/arm/src/str71x/str71x_internal.h
+ *
+ *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 NuttX 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 OWNER 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.
+ *
+ ************************************************************************************/
+
+#ifndef __ARCH_ARM_SRC_STR71X_STR71X_INTERNAL_H
+#define __ARCH_ARM_SRC_STR71X_STR71X_INTERNAL_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+#include "str71x_map.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* Calculate the values of PCLK1 and PCLK2 from settings in board.h.
+ *
+ * Example:
+ *  STR71X_RCCU_MAIN_OSC = 4MHz (not divided by 2)
+ *  STR71X_CLK2 = 4MHz
+ *  STR71X_PLL1OUT = 16 * STR71X_CLK2 / 2 = 32MHz
+ *  CLK3 = 32MHz
+ *  RCLK = 32MHz
+ *  PCLK1 = 32MHz / 1 = 32MHz
+ */
+
+/* PLL1OUT derives from Main OSC->CLK2 */
+
+#ifdef STR71X_PLL1IN_DIV2                              /* CLK2 is input to PLL1 */
+#  define STR71X_CLK2  (STR71X_RCCU_MAIN_OSC/2)        /* CLK2 is OSC/2 */
+#else
+#  define STR71X_CLK2  STR71X_RCCU_MAIN_OSC            /* CLK2 is OSC */
+#endif
+
+#define STR71X_PLL1OUT ((STR71X_PLL1OUT_MUL * STR71X_CLK2) / STR71X_PLL1OUT_DIV)
+
+/* PLL2 OUTderives from HCLK */
+
+#define STR71X_PLL2OUT ((STR71X_PLL2OUT_MUL * STR71X_HCLK) / STR71X_PLL2OUT_DIV)
+
+/* Peripheral clocks derive from PLL1OUT->CLK3->RCLK->PCLK1/2 */
+
+#define STR71X_CLK3    STR71X_PLL1OUT                  /* CLK3 hard coded to be PLL1OUT */
+#define STR71X_RCLK    STR71X_CLK3                     /* RCLK hard coded to be CLK3 */
+#define STR71X_PCLK1   (STR71X_RCLK / STR71X_APB1_DIV) /* PCLK1 derives from RCLK */
+#define STR71X_PCLK2   (STR71X_RCLK / STR71X_APB2_DIV) /* PCLK2 derives from RCLK */
+
+/************************************************************************************
+ * Public Types
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+#endif /* __ARCH_ARM_SRC_STR71X_STR71X_INTERNAL_H */

arch/arm/src/str71x/str71x_lowputc.c

@@ -42,7 +42,9 @@
 
 #include "up_internal.h"
 #include "up_arch.h"
+
 #include "chip.h"
+#include "str71x_internal.h"
 
 /**************************************************************************
  * Private Definitions
@@ -200,28 +202,6 @@
 #define STR71X_UARTCR_VALUE (STR71X_UARTCR_MODE|STR71X_UARTCR_PARITY|STR71X_UARTCR_STOP|\
                              STR71X_UARTCR_RUN|STR71X_UARTCR_RXENABLE|STR71X_UARTCR_FIFOENABLE)
 
-/* Calculate the value of PCLK1 from settings in board.h.
- *
- * Example:
- *  STR71X_RCCU_MAIN_OSC = 4MHz (not divided by 2)
- *  CLK2 = 4MHz
- *  PLL1OUT = 16 * CLK2 / 2 = 32MHz
- *  CLK3 = 32MHz
- *  RCLK = 32MHz
- *  PCLK1 = 32MHz / 1 = 32MHz
- */
-
-#ifdef STR71X_PLL1IN_DIV2                    /* Input may be divided by 2 */
-#  define CLK2 (STR71X_RCCU_MAIN_OSC/2)      /* CLK2 is input to PLL1 */
-#else
-#  define CLK2 STR71X_RCCU_MAIN_OSC          /* CLK2 is input to PLL1 */
-#endif
-                                             /* PLL1OUT derives from CLK2 */
-#define PLL1OUT (STR71X_PLL1OUT_MUL * CLK2 / STR71X_PLL1OUT_DIV)
-#define CLK3    PLL1OUT                      /* CLK3 hard coded to be PLL1OUT */
-#define RCLK    CLK3                         /* RCLK hard coded to be CLK3 */
-#define PCLK1   (RCLK / STR71X_APB1_DIV)     /* PCLK1 derives from RCLK */
-
 /* Calculate BAUD rate from PCLK1:
  *
  * Example:
@@ -232,7 +212,7 @@
  */
 
 #define UART_BAUDDIVISOR (16 * STR71X_UART_BAUD)
-#define UART_BAUDRATE    ((PCLK1 + (UART_BAUDDIVISOR/2) / UART_BAUDDIVISOR))
+#define UART_BAUDRATE    ((STR71X_PCLK1 + (UART_BAUDDIVISOR/2) / UART_BAUDDIVISOR))
 
 /**************************************************************************
  * Private Types

arch/arm/src/str71x/str71x_serial.c

@@ -52,6 +52,7 @@
 #include "chip.h"
 #include "up_arch.h"
 #include "up_internal.h"
+#include "str71x_internal.h"
 
 #ifdef CONFIG_USE_SERIALDRIVER
 
@@ -181,28 +182,6 @@
 #  warning "No CONFIG_UARTn_SERIAL_CONSOLE Setting"
 #endif
 
-/* Calculate the value of PCLK1 from settings in board.h.
- *
- * Example:
- *  STR71X_RCCU_MAIN_OSC = 4MHz (not divided by 2)
- *  CLK2 = 4MHz
- *  PLL1OUT = 16 * CLK2 / 2 = 32MHz
- *  CLK3 = 32MHz
- *  RCLK = 32MHz
- *  PCLK1 = 32MHz / 1 = 32MHz
- */
-
-#ifdef STR71X_PLL1IN_DIV2                    /* Input may be divided by 2 */
-#  define CLK2 (STR71X_RCCU_MAIN_OSC/2)      /* CLK2 is input to PLL1 */
-#else
-#  define CLK2 STR71X_RCCU_MAIN_OSC          /* CLK2 is input to PLL1 */
-#endif
-                                             /* PLL1OUT derives from CLK2 */
-#define PLL1OUT (STR71X_PLL1OUT_MUL * CLK2 / STR71X_PLL1OUT_DIV)
-#define CLK3    PLL1OUT                      /* CLK3 hard coded to be PLL1OUT */
-#define RCLK    CLK3                         /* RCLK hard coded to be CLK3 */
-#define PCLK1   (RCLK / STR71X_APB1_DIV)     /* PCLK1 derives from RCLK */
-
 /****************************************************************************
  * Private Types
  ****************************************************************************/
@@ -486,7 +465,7 @@ static int up_setup(struct uart_dev_s *dev)
   /* Set the BAUD rate */
 
   divisor = 16 * priv->baud;
-  baud    =  (PCLK1 + divisor/2) / divisor;
+  baud    =  (STR71X_PCLK1 + divisor/2) / divisor;
   up_serialout(priv, STR71X_UART_BR_OFFSET, baud);
 
   /* Get mode setting */

arch/arm/src/str71x/str71x_timerisr.c

@@ -49,33 +49,12 @@
 #include "up_arch.h"
 
 #include "chip.h"
+#include "str71x_internal.h"
 
 /****************************************************************************
  * Definitions
  ****************************************************************************/
 
-/* Calculate the value of PCLK2 from settings in board.h.
- *
- * Example:
- *  STR71X_RCCU_MAIN_OSC = 4MHz
- *  CLK2                 = 4MHz (not divided by 2)
- *  PLL1OUT              = 16 * CLK2 / 2 = 32MHz
- *  CLK3                 = 32MHz
- *  RCLK                 = 32MHz
- *  PCLK2                = 32MHz / 1 = 32MHz
- */
-
-#ifdef STR71X_PLL1IN_DIV2                    /* Input may be divided by 2 */
-#  define CLK2 (STR71X_RCCU_MAIN_OSC/2)      /* CLK2 is input to PLL1 */
-#else
-#  define CLK2 STR71X_RCCU_MAIN_OSC          /* CLK2 is input to PLL1 */
-#endif
-                                             /* PLL1OUT derives from CLK2 */
-#define PLL1OUT (STR71X_PLL1OUT_MUL * CLK2 / STR71X_PLL1OUT_DIV)
-#define CLK3    PLL1OUT                      /* CLK3 hard coded to be PLL1OUT */
-#define RCLK    CLK3                         /* RCLK hard coded to be CLK3 */
-#define PCLK2   (RCLK / STR71X_APB2_DIV)     /* PCLK2 derives from RCLK */
-
 /* The desired timer interrupt frequency is provided by the definition
  * CLK_TCK (see include/time.h).  CLK_TCK defines the desired number of
  * system clock ticks per second.  That value is a user configurable setting
@@ -101,8 +80,8 @@
   * than the maximum.
   */
 
-#if PCLK2 > MAX_TIM0CLK
+#if STR71X_PCLK2 > MAX_TIM0CLK
-#  define PCLK2_DIVIDER (((PCLK2) + (MAX_TIM0CLK+1)) / MAX_TIM0CLK)
+#  define PCLK2_DIVIDER (((STR71X_PCLK2) + (MAX_TIM0CLK+1)) / MAX_TIM0CLK)
 #else
 #  define PCLK2_DIVIDER (1)
 #endif
@@ -116,7 +95,7 @@
    * TIM0CLK would 6,4000,000 and the final OCAR_VALUE would be 64,000.
    */
 
-#define ACTUAL_TIM0CLK (PCLK2 / PCLK2_DIVIDER)
+#define ACTUAL_TIM0CLK (STR71X_PCLK2 / PCLK2_DIVIDER)
 #define OCAR_VALUE     (ACTUAL_TIM0CLK / CLK_TCK)
 
 #if OCAR_VALUE > 65535