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Diffstat (limited to 'nuttx/arch/arm/src/lm3s/lm3s_gpio.h')
-rw-r--r--nuttx/arch/arm/src/lm3s/lm3s_gpio.h88
1 files changed, 68 insertions, 20 deletions
diff --git a/nuttx/arch/arm/src/lm3s/lm3s_gpio.h b/nuttx/arch/arm/src/lm3s/lm3s_gpio.h
index b4db728f8..16d3545eb 100644
--- a/nuttx/arch/arm/src/lm3s/lm3s_gpio.h
+++ b/nuttx/arch/arm/src/lm3s/lm3s_gpio.h
@@ -354,14 +354,20 @@
/* Bit-encoded input to lm3s_configgpio() *******************************************/
-#define GPIO_FUNC_SHIFT 30 /* Bit 31-30: GPIO function */
-#define GPIO_FUNC_MASK (3 << GPIO_FUNC_SHIFT)
-#define GPIO_FUNC_INPUT (0 << GPIO_FUNC_SHIFT) /* Normal GPIO input */
-#define GPIO_FUNC_OUTPUT (1 << GPIO_FUNC_SHIFT) /* Normal GPIO output */
-#define GPIO_FUNC_PERIPHERAL (2 << GPIO_FUNC_SHIFT) /* Peripheral function */
-#define GPIO_FUNC_INTERRUPT (3 << GPIO_FUNC_SHIFT) /* Interrupt function */
-
-#define GPIO_INT_SHIFT 27 /* Bits 29-27: Interrupt type */
+#define GPIO_FUNC_SHIFT 29 /* Bit 31-29: GPIO function */
+#define GPIO_FUNC_MASK (7 << GPIO_FUNC_SHIFT) /* (See table 9-1 in data sheet) */
+#define GPIO_FUNC_INPUT (0 << GPIO_FUNC_SHIFT) /* Digital GPIO input */
+#define GPIO_FUNC_OUTPUT (1 << GPIO_FUNC_SHIFT) /* Digital GPIO output */
+#define GPIO_FUNC_ODINPUT (2 << GPIO_FUNC_SHIFT) /* Open-drain GPIO input */
+#define GPIO_FUNC_ODOUTPUT (3 << GPIO_FUNC_SHIFT) /* Open-drain GPIO output */
+#define GPIO_FUNC_PFODIO (4 << GPIO_FUNC_SHIFT) /* Open-drain input/output (I2C) */
+#define GPIO_FUNC_PFINPUT (5 << GPIO_FUNC_SHIFT) /* Digital input (Timer, CCP) */
+#define GPIO_FUNC_PFOUTPUT (5 << GPIO_FUNC_SHIFT) /* Digital output (Timer, PWM, Comparator) */
+#define GPIO_FUNC_PFIO (5 << GPIO_FUNC_SHIFT) /* Digital input/output (SSI, UART) */
+#define GPIO_FUNC_ANINPUT (6 << GPIO_FUNC_SHIFT) /* Analog input (Comparator) */
+#define GPIO_FUNC_INTERRUPT (7 << GPIO_FUNC_SHIFT) /* Interrupt function */
+
+#define GPIO_INT_SHIFT 26 /* Bits 28-26: Interrupt type */
#define GPIO_INT_MASK (7 << GPIO_INT_SHIFT)
#define GPIO_INT_FALLINGEDGE (0 << GPIO_INT_SHIFT) /* Interrupt on falling edge */
#define GPIO_INT_RISINGEDGE (1 << GPIO_INT_SHIFT) /* Interrupt on rising edge */
@@ -369,22 +375,22 @@
#define GPIO_INT_LOWLEVEL (3 << GPIO_INT_SHIFT) /* Interrupt on low level */
#define GPIO_INT_HIGHLEVEL (4 << GPIO_INT_SHIFT) /* Interrupt on high level */
-#define GPIO_STRENGTH_SHIFT 25 /* Bits 26-25: Pad drive strength */
+#define GPIO_STRENGTH_SHIFT 24 /* Bits 25-24: Pad drive strength */
#define GPIO_STRENGTH_MASK (3 << GPIO_STRENGTH_SHIFT)
#define GPIO_STRENGTH_2MA (0 << GPIO_STRENGTH_SHIFT) /* 2mA pad drive strength */
#define GPIO_STRENGTH_4MA (1 << GPIO_STRENGTH_SHIFT) /* 4mA pad drive strength */
#define GPIO_STRENGTH_8MA (2 << GPIO_STRENGTH_SHIFT) /* 8mA pad drive strength */
#define GPIO_STRENGTH_8MASC (3 << GPIO_STRENGTH_SHIFT) /* 8mA Pad drive with slew rate control */
-#define GPIO_PADTYPE_SHIFT 22 /* Bits 22-24: Pad type */
-#define GPIO_PADTYPE_MASK (0 << GPIO_PADTYPE_SHIFT)
-#define GPIO_PADTYPE_STD (1 << GPIO_PADTYPE_SHIFT) /* Push-pull */
-#define GPIO_PADTYPE_STDWPU (2 << GPIO_PADTYPE_SHIFT) /* Push-pull with weak pull-up */
-#define GPIO_PADTYPE_STDWPD (3 << GPIO_PADTYPE_SHIFT) /* Push-pull with weak pull-down */
-#define GPIO_PADTYPE_OD (4 << GPIO_PADTYPE_SHIFT) /* Open-drain */
-#define GPIO_PADTYPE_ODWPU (5 << GPIO_PADTYPE_SHIFT) /* Open-drain with weak pull-up */
-#define GPIO_PADTYPE_ODWPD (6 << GPIO_PADTYPE_SHIFT) /* Open-drain with weak pull-down */
-#define GPIO_PADTYPE_ANALOG (7 << GPIO_PADTYPE_SHIFT) /* Analog comparator */
+#define GPIO_PADTYPE_SHIFT 21 /* Bits 21-23: Pad type */
+#define GPIO_PADTYPE_MASK (7 << GPIO_PADTYPE_SHIFT)
+#define GPIO_PADTYPE_STD (0 << GPIO_PADTYPE_SHIFT) /* Push-pull */
+#define GPIO_PADTYPE_STDWPU (1 << GPIO_PADTYPE_SHIFT) /* Push-pull with weak pull-up */
+#define GPIO_PADTYPE_STDWPD (2 << GPIO_PADTYPE_SHIFT) /* Push-pull with weak pull-down */
+#define GPIO_PADTYPE_OD (3 << GPIO_PADTYPE_SHIFT) /* Open-drain */
+#define GPIO_PADTYPE_ODWPU (4 << GPIO_PADTYPE_SHIFT) /* Open-drain with weak pull-up */
+#define GPIO_PADTYPE_ODWPD (5 << GPIO_PADTYPE_SHIFT) /* Open-drain with weak pull-down */
+#define GPIO_PADTYPE_ANALOG (6 << GPIO_PADTYPE_SHIFT) /* Analog comparator */
#define GPIO_VALUE_SHIFT 6 /* Bit 6: If output, inital value of output */
#define GPIO_VALUE_MASK (1 << GPIO_VALUE_SHIFT)
@@ -402,8 +408,50 @@
#define GPIO_PORTG (6 << GPIO_PORT_SHIFT) /* GPIOG */
#define GPIO_PORTH (7 << GPIO_PORT_SHIFT) /* GPIOH */
-#define GPIO_NUMBER_SHIFT 0 /* Bits 0-2: GPIO number: 0-7 */
-#define GPIO_NUMBER_MASK (0x07 << GPIO_NUMBER_SHIFT)
+#define GPIO_NUMBER_SHIFT 0 /* Bits 0-2: GPIO number: 0-7 */
+#define GPIO_NUMBER_MASK (7 << GPIO_NUMBER_SHIFT)
+
+/* The following lists the input value to lm3s_configgpio to setup the alternate,
+ * hardware function for each pin.
+ */
+
+#define GPIO_UART0_RX (GPIO_FUNC_PFINPUT | GPIO_PORTA | 0) /* PA0: UART 0 receive (U0Rx) */
+#define GPIO_UART0_TX (GPIO_FUNC_PFOUTPUT | GPIO_PORTA | 1) /* PA1: UART 0 transmit (U0Tx) */
+#define GPIO_SSI0_CLK (GPIO_FUNC_PFIO | GPIO_PORTA | 2) /* PA2: SSI0 clock (SSI0Clk) */
+#define GPIO_SSI0_FSS (GPIO_FUNC_PFIO | GPIO_PORTA | 3) /* PA3: SSI0 frame (SSI0Fss) */
+#define GPIO_SSI0_RX (GPIO_FUNC_PFINPUT | GPIO_PORTA | 4) /* PA4: SSI0 receive (SSI0Rx) */
+#define GPIO_SSI0_TX (GPIO_FUNC_PFOUTPUT | GPIO_PORTA | 5) /* PA5: SSI0 transmit (SSI0Tx) */
+#define GPIO_PWM1_CCP (GPIO_FUNC_PFIO | GPIO_PORTA | 6) /* PA6: Capture/Compare/PWM1 (CCP1) */
+#define GPIO_I2C1_SDA (GPIO_FUNC_PFODIO | GPIO_PORTA | 7) /* PA7: I2C1 data (I2C1SDA) */
+#define GPIO_PWM0_CCP (GPIO_FUNC_PFIO | GPIO_PORTB | 0) /* PB0: Capture/Compare/PWM0 (CCP0) */
+#define GPIO_PWM2_CCP (GPIO_FUNC_PFIO | GPIO_PORTB | 1) /* PB1: Capture/Compare/PWM2 (CCP2) */
+#define GPIO_I2C0_SCL (GPIO_FUNC_PFOUTPUT | GPIO_PORTB | 2) /* PB2: I2C0 clock (I2C0SCL) */
+#define GPIO_I2C0_SDA (GPIO_FUNC_PFODIO | GPIO_PORTB | 3) /* PB3: I2C0 data (I2C0SDA) */
+#define GPIO_CMP0_NIN (GPIO_FUNC_PFINPUT | GPIO_PORTB | 4) /* PB4: Analog comparator 0 negative input (C0-) */
+#define GPIO_CMP1_NIN (GPIO_FUNC_PFINPUT | GPIO_PORTB | 5) /* PB5: Analog comparator 1 negative input (C1-) */
+#define GPIO_CMP0_PIN (GPIO_FUNC_PFINPUT | GPIO_PORTB | 6) /* PB6: Analog comparator 0 positive input (C0+) */
+#define GPIO_JTAG_TRST (GPIO_FUNC_PFINPUT | GPIO_PORTB | 7) /* PB7: JTAG ~TRST */
+#define GPIO_JTAG_TCK (GPIO_FUNC_PFINPUT | GPIO_PORTC | 0) /* PC0: JTAG/SWD CLK */
+#define GPIO_JTAG_SWCLK (GPIO_FUNC_PFINPUT | GPIO_PORTC | 0) /* PC0: JTAG/SWD CLK */
+#define GPIO_JTAG_TMS (GPIO_FUNC_PFIO | GPIO_PORTC | 1) /* PC1: JTAG TMS */
+#define GPIO_JTAG_SWDIO (GPIO_FUNC_PFIO | GPIO_PORTC | 1) /* PC1: JTAG SWDIO */
+#define GPIO_JTAG_TDI (GPIO_FUNC_PFINPUT | GPIO_PORTC | 2) /* PC2: JTAG TDI */
+#define GPIO_JTAG_TDO (GPIO_FUNC_PFOUTPUT | GPIO_PORTC | 3) /* PC3: JTAG TDO */
+#define GPIO_JTAG_SWO (GPIO_FUNC_PFOUTPUT | GPIO_PORTC | 3) /* PC3: JTAG SWO */
+#define GPIO_PWM5_CCP (GPIO_FUNC_PFIO | GPIO_PORTC | 4) /* PC4: Capture/Compare/PWM5 (CCP5) */
+#define GPIO_CMP1_PIN (GPIO_FUNC_PFINPUT | GPIO_PORTC | 5) /* PC5: Analog comparator 1 positive input (C1+) */
+#define GPIO_CMP0_OUT (GPIO_FUNC_PFOUTPUT | GPIO_PORTC | 5) /* PC5: Analog comparator 0 output (C0o) */
+#define GPIO_PWM3_CCP (GPIO_FUNC_PFIO | GPIO_PORTC | 6) /* PC6: Capture/Compare/PWM3 (CCP3) */
+#define GPIO_PWM4_CCP (GPIO_FUNC_PFIO | GPIO_PORTC | 7) /* PC7: Capture/Compare/PWM4 (CCP4) */
+#define GPIO_UART1_RX (GPIO_FUNC_PFINPUT | GPIO_PORTD | 2) /* PD2: UART 1 receive (U1Rx) */
+#define GPIO_UART1_TX (GPIO_FUNC_PFOUTPUT | GPIO_PORTD | 3) /* PD3: UART 1 transmit (U1Tx) */
+#define GPIO_SSI1_CLK (GPIO_FUNC_PFIO1 | GPIO_PORTE | 0) /* PE0: SSI1 clock (SSI1Clk) */
+#define GPIO_SSI1_FSS (GPIO_FUNC_PFIO | GPIO_PORTE | 1) /* PE1: SSI1 frame (SSI1Fss) */
+#define GPIO_SSI1_RX (GPIO_FUNC_PFINPUT | GPIO_PORTE | 2) /* PE2: SSI1 receive (SSI1Rx) */
+#define GPIO_SSI1_TX (GPIO_FUNC_PFOUTPUT | GPIO_PORTE | 3) /* PE3: SSI1 transmit (SSI1Tx) */
+#define GPIO_ETHPHY_LED1 (GPIO_FUNC_PFOUTPUT | GPIO_PORTF | 2) /* PF2: LED1 */
+#define GPIO_ETHPHY_LED0 (GPIO_FUNC_PFOUTPUT | GPIO_PORTF | 3) /* PF3: LED0 */
+#define GPIO_I2C1_SCL (GPIO_FUNC_PFOUTPUT | GPIO_PORTG | 0) /* PG0: I2C1 clock (I2C1SCL) */
/************************************************************************************
* Public Types