diff options
Diffstat (limited to 'nuttx/arch/arm/src/lm3s')
-rw-r--r-- | nuttx/arch/arm/src/lm3s/lm3s_gpio.h | 44 | ||||
-rw-r--r-- | nuttx/arch/arm/src/lm3s/lm3s_vectors.S | 200 |
2 files changed, 240 insertions, 4 deletions
diff --git a/nuttx/arch/arm/src/lm3s/lm3s_gpio.h b/nuttx/arch/arm/src/lm3s/lm3s_gpio.h index 78a66d6af..4c1ac407e 100644 --- a/nuttx/arch/arm/src/lm3s/lm3s_gpio.h +++ b/nuttx/arch/arm/src/lm3s/lm3s_gpio.h @@ -50,7 +50,6 @@ /* GPIO Register Offsets ************************************************************/ #ifdef CONFIG_ARCH_CHIP_LM3S6918 - # define LM3S_GPIO_DATA_OFFSET 0x000 /* GPIO Data */ # define LM3S_GPIO_DIR_OFFSET 0x400 /* GPIO Direction */ # define LM3S_GPIO_IS_OFFSET 0x404 /* GPIO Interrupt Sense */ @@ -355,20 +354,56 @@ /* Bit-encoded input to lm3s_configgpio() *******************************************/ -#define GPIO_DIR_MASK (1 << 31) /* GPIO direction */ +#define GPIO_DIR_MASK (1 << 31) /* Bit 31: GPIO direction */ #define GPIO_DIR_OUTPUT (1 << 31) #define GPIO_DIR_INPUT (0 << 31) -#define GPIO_VALUE_MASK (1 << 6) /* If output, inital value of output */ +#define GPIO_VALUE_MASK (1 << 6) /* Bit 6: If output, inital value of output */ #define GPIO_VALUE_ONE (1 << 6) #define GPIO_VALUE_ZERO (0 << 6) -#define GPIO_NUMBER_MASK (0x3f) /* GPIO number: 0-63 */ +#define GPIO_PORT_SHIFT 3 /* Bit 3-5: Port number */ +#define GPIO_PORT_MASK (0x07 << GPIO_PORT_SHIFT) +#define GPIO_PORTA (0 << GPIO_PORT_SHIFT) +#define GPIO_PORTB (1 << GPIO_PORT_SHIFT) +#define GPIO_PORTC (2 << GPIO_PORT_SHIFT) +#define GPIO_PORTD (3 << GPIO_PORT_SHIFT) +#define GPIO_PORTE (4 << GPIO_PORT_SHIFT) +#define GPIO_PORTF (5 << GPIO_PORT_SHIFT) +#define GPIO_PORTG (6 << GPIO_PORT_SHIFT) +#define GPIO_PORTH (7 << GPIO_PORT_SHIFT) + +#define GPIO_NUMBER_SHIFT 0 /* Bits 0-2: GPIO number: 0-7 */ +#define GPIO_NUMBER_MASK (0x07 << GPIO_NUMBER_SHIFT) /************************************************************************************ * Public Types ************************************************************************************/ +#ifndef __ASSEMBLY__ + +/************************************************************************************ + * Inline Functions + ************************************************************************************/ + +static inline uint32 lm3s_gpiobaseaddress(unsigned int port) +{ +#ifdef CONFIG_ARCH_CHIP_LM3S6918 + unsigned int portno = (port >> GPIO_PORT_SHIFT) & 7; + if (portno < 4) + { + return LM3S_GPIOA_BASE + 0x1000 * portno; + } + else + { + return LM3S_GPIOE_BASE + 0x1000 * portno; + } +#else +# error "GPIO register base addresses not known for this LM3S chip" + return 0; +#endif +} + /************************************************************************************ * Public Data ************************************************************************************/ @@ -394,4 +429,5 @@ EXTERN int lm3s_configgpio(uint32 bitset); } #endif +#endif /* __ASSEMBLY__ */ #endif /* __ARCH_ARM_SRC_LM3S_LM3S_GPIO_H */ diff --git a/nuttx/arch/arm/src/lm3s/lm3s_vectors.S b/nuttx/arch/arm/src/lm3s/lm3s_vectors.S new file mode 100644 index 000000000..3871e2b68 --- /dev/null +++ b/nuttx/arch/arm/src/lm3s/lm3s_vectors.S @@ -0,0 +1,200 @@ +/************************************************************************************
+ * arch/arm/src/lm3s/lm3s_vectors.S
+ *
+ * Copyright (C) 2009 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.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+/************************************************************************************
+ * Preprocessor Definitions
+ ************************************************************************************/
+
+#ifndef CONFIG_DEBUG
+# define lm3s_uncaught 0
+#endif
+
+/************************************************************************************
+ * Global Symbols
+ ************************************************************************************/
+
+ .globl _vectors
+ .globl lm3s_pendsvhandler
+ .globl lm3s_systickhandler
+ .globl lm3s_faulthandler
+ .globl lm3s_portsvchandler
+
+/************************************************************************************
+ * Macros
+ ************************************************************************************/
+
+ .macro HANDLER, label, irqno
+\label:
+#warning "Missing logic"
+ .endm
+
+/************************************************************************************
+ * Vectors
+ ************************************************************************************/
+
+ .section .vectors, "ax"
+ .code 16
+ .align 0
+
+_vectors:
+/* Processor Exceptions */
+ .word __stack_end__ /* Vector 0: Reset stack pointer */
+ .word _start /* Vector 1: Reset vector */
+ .word lm3s_nmihandler /* Vector 2: Non-Maskable Interrupt (NMI) */
+ .word lm3s_faulthandler /* Vector 3: Hard fault */
+ .word lm3s_uncaught /* Vector 4: Memory management (MPU) */
+ .word lm3s_uncaught /* Vector 5: Bus fault */
+ .word lm3s_uncaught /* Vector 6: Usage fault */
+ .word lm3s_uncaught /* Vector 7: Reserved */
+ .word lm3s_uncaught /* Vector 8: Reserved */
+ .word lm3s_uncaught /* Vector 9: Reserved */
+ .word lm3s_uncaught /* Vector 10: Reserved */
+ .word lm3s_svchandler /* Vector 11: SVC call */
+ .word lm3s_uncaught /* Vector 12: Debug monitor */
+ .word lm3s_uncaught /* Vector 13: Reserved */
+ .word lm3s_pendsvhandler /* Vector 14: Pendable system service request */
+ .word lm3s_systickhandler /* Vector 15: System tick */
+
+/* External Interrupts */
+
+#ifdef CONFIG_ARCH_CHIP_LM3S6918
+ .word lm3s_gpioahandler /* Vector 16: GPIO Port A */
+ .word lm3s_gpiobhandler /* Vector 17: GPIO Port B */
+ .word lm3s_gpiodhandler /* Vector 18: GPIO Port C */
+ .word lm3s_gpioehandler /* Vector 19: GPIO Port D */
+ .word lm3s_gpioehandler /* Vector 20: GPIO Port E */
+ .word lm3s_uart0handler /* Vector 21: UART 0 */
+ .word lm3s_uart1handler /* Vector 22: UART 1 */
+ .word lm3s_ssi0handler /* Vector 23: SSI 0 */
+ .word lm3s_i2c0handler /* Vector 24: I2C 0 */
+ .word lm3s_uncaught /* Vector 25: Reserved */
+ .word lm3s_uncaught /* Vector 26: Reserved */
+ .word lm3s_uncaught /* Vector 27: Reserved */
+ .word lm3s_uncaught /* Vector 28: Reserved */
+ .word lm3s_uncaught /* Vector 29: Reserved */
+ .word lm3s_adc0handler /* Vector 30: ADC Sequence 0 */
+ .word lm3s_adc1handler /* Vector 31: ADC Sequence 1 */
+ .word lm3s_adc2handler /* Vector 32: ADC Sequence 2 */
+ .word lm3s_adc3handler /* Vector 33: ADC Sequence 3 */
+ .word lm3s_wdoghandler /* Vector 34: Watchdog Timer */
+ .word lm3s_tmr0ahandler /* Vector 35: Timer 0 A */
+ .word lm3s_tmr0bhandler /* Vector 36: Timer 0 B */
+ .word lm3s_tmr1ahandler /* Vector 37: Timer 1 A */
+ .word lm3s_tmr1bhandler /* Vector 38: Timer 1 B */
+ .word lm3s_tmr2ahandler /* Vector 39: Timer 2 A */
+ .word lm3s_tmr2bhandler /* Vector 40: Timer 3 B */
+ .word lm3s_cmp0handler /* Vector 41: Analog Comparator 0 */
+ .word lm3s_dmp1handler /* Vector 42: Analog Comparator 1 */
+ .word lm3s_uncaught /* Vector 43: Reserved */
+ .word lm3s_sysconhandler /* Vector 44: System Control */
+ .word lm3s_flashconhandler /* Vector 45: FLASH Control */
+ .word lm3s_gpiofhandler /* Vector 46: GPIO Port F */
+ .word lm3s_gpioghandler /* Vector 47: GPIO Port G */
+ .word lm3s_gpiohhandler /* Vector 48: GPIO Port H */
+ .word lm3s_uncaught /* Vector 49: Reserved */
+ .word lm3s_ssi1handler /* Vector 50: SSI 1 */
+ .word lm3s_tmr3ahandler /* Vector 51: Timer 3 A */
+ .word lm3s_tmr3bhandler /* Vector 52: Timer 3 B */
+ .word lm3s_i2c1handler /* Vector 53: I2C 1 */
+ .word lm3s_uncaught /* Vector 54: Reserved */
+ .word lm3s_uncaught /* Vector 55: Reserved */
+ .word lm3s_uncaught /* Vector 56: Reserved */
+ .word lm3s_uncaught /* Vector 57: Reserved */
+ .word lm3s_ethhandler /* Vector 58: Ethernet Controller */
+ .word lm3s_hibhandler /* Vector 59: Hibernation Module */
+ .word lm3s_uncaught /* Vector 60: Reserved */
+ .word lm3s_uncaught /* Vector 61: Reserved */
+ .word lm3s_uncaught /* Vector 62: Reserved */
+ .word lm3s_uncaught /* Vector 63: Reserved */
+ .word lm3s_uncaught /* Vector 64: Reserved */
+ .word lm3s_uncaught /* Vector 65: Reserved */
+ .word lm3s_uncaught /* Vector 66: Reserved */
+ .word lm3s_uncaught /* Vector 67: Reserved */
+ .word lm3s_uncaught /* Vector 68: Reserved */
+ .word lm3s_uncaught /* Vector 69: Reserved */
+ .word lm3s_uncaught /* Vector 70: Reserved */
+#else
+# error "Vectors not specified for this LM3S chip"
+#endif
+ .text
+ .thumb_func
+#ifdef CONFIG_ARCH_CHIP_LM3S6918
+ HANDLER lm3s_gpioahandler, LM3S_IRQ_GPIOA /* Vector 16: GPIO Port A */
+ HANDLER lm3s_gpiobhandler, LM3S_IRQ_GPIOB /* Vector 17: GPIO Port B */
+ HANDLER lm3s_gpiodhandler, LM3S_IRQ_GPIOC /* Vector 18: GPIO Port C */
+ HANDLER lm3s_gpioehandler, LM3S_IRQ_GPIOD /* Vector 19: GPIO Port D */
+ HANDLER lm3s_gpioehandler, LM3S_IRQ_GPIOE /* Vector 20: GPIO Port E */
+ HANDLER lm3s_uart0handler, LM3S_IRQ_UART0 /* Vector 21: UART 0 */
+ HANDLER lm3s_uart1handler, LM3S_IRQ_UART1 /* Vector 22: UART 1 */
+ HANDLER lm3s_ssi0handler, LM3S_IRQ_SSI0 /* Vector 23: SSI 0 */
+ HANDLER lm3s_i2c0handler, LM3S_IRQ_I2C0 /* Vector 24: I2C 0 */
+ HANDLER lm3s_adc0handler, LM3S_IRQ_ADC0 /* Vector 30: ADC Sequence 0 */
+ HANDLER lm3s_adc1handler, LM3S_IRQ_ADC1 /* Vector 31: ADC Sequence 1 */
+ HANDLER lm3s_adc2handler, LM3S_IRQ_ADC2 /* Vector 32: ADC Sequence 2 */
+ HANDLER lm3s_adc3handler, LM3S_IRQ_ADC3 /* Vector 33: ADC Sequence 3 */
+ HANDLER lm3s_wdoghandler, LM3S_IRQ_WDOG /* Vector 34: Watchdog Timer */
+ HANDLER lm3s_tmr0ahandler, LM3S_IRQ_TIMER0A /* Vector 35: Timer 0 A */
+ HANDLER lm3s_tmr0bhandler, LM3S_IRQ_TIMER0B /* Vector 36: Timer 0 B */
+ HANDLER lm3s_tmr1ahandler, LM3S_IRQ_TIMER1A /* Vector 37: Timer 1 A */
+ HANDLER lm3s_tmr1bhandler, LM3S_IRQ_TIMER1B /* Vector 38: Timer 1 B */
+ HANDLER lm3s_tmr2ahandler, LM3S_IRQ_TIMER2A /* Vector 39: Timer 2 A */
+ HANDLER lm3s_tmr2bhandler, LM3S_IRQ_TIMER2B /* Vector 40: Timer 3 B */
+ HANDLER lm3s_cmp0handler, LM3S_IRQ_COMPARE0 /* Vector 41: Analog Comparator 0 */
+ HANDLER lm3s_dmp1handler, LM3S_IRQ_COMPARE1 /* Vector 42: Analog Comparator 1 */
+ HANDLER lm3s_sysconhandler, LM3S_IRQ_SYSCON /* Vector 44: System Control */
+ HANDLER lm3s_flashconhandler, LM3S_IRQ_FLASHCON /* Vector 45: FLASH Control */
+ HANDLER lm3s_gpiofhandler, LM3S_IRQ_GPIOF /* Vector 46: GPIO Port F */
+ HANDLER lm3s_gpioghandler, LM3S_IRQ_GPIOG /* Vector 47: GPIO Port G */
+ HANDLER lm3s_gpiohhandler, LM3S_IRQ_GPIOH /* Vector 48: GPIO Port H */
+ HANDLER lm3s_ssi1handler, LM3S_IRQ_SSI1 /* Vector 50: SSI 1 */
+ HANDLER lm3s_tmr3ahandler, LM3S_IRQ_TIMER3A /* Vector 51: Timer 3 A */
+ HANDLER lm3s_tmr3bhandler, LM3S_IRQ_TIMER3B /* Vector 52: Timer 3 B */
+ HANDLER lm3s_i2c1handler, LM3S_IRQ_I2C1 /* Vector 53: I2C 1 */
+ HANDLER lm3s_ethhandler , LM3S_IRQ_ETHCON /* Vector 58: Ethernet Controller */
+ HANDLER lm3s_hibhandler , LM3S_IRQ_HIBERNATE /* Vector 59: Hibernation Module */
+#else
+# error "Vectors not specified for this LM3S chip"
+#endif
+
+#ifdef CONFIG_DEBUG
+ HANDLER lm3s_uncaught, NR_IRQS /* Unexpected vector (default is to reset) */
+#endif
+ .end
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