Mirrors_Framework/nuttx
1
0
Fork 0
mirror of https://github.com/apache/nuttx.git synced 2026-06-05 15:58:59 +08:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

Add STM3240 alternate pin functions

Browse Source 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4103 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2011-11-19 18:06:02 +00:00
parent d01965fd90
commit 90f114ee4f
4 changed files with 656 additions and 76 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/arm/src/stm32/chip.h
+9 -9
View File
@@ -164,7 +164,7 @@
# define STM32_NCAN 2 /* CAN1-2 */ # define STM32_NCAN 2 /* CAN1-2 */
# define STM32_NSDIO 1 /* SDIO */ # define STM32_NSDIO 1 /* SDIO */
# define STM32_NUSBOTG 1 /* USB OTG FS/HS */ # define STM32_NUSBOTG 1 /* USB OTG FS/HS */
# define STM32_NGPIO 144 /* GPIOA-I */ # define STM32_NGPIO 139 /* GPIOA-I */
# define STM32_NADC 3 /* 12-bit ADC1-3, 16 channels */ # define STM32_NADC 3 /* 12-bit ADC1-3, 16 channels */
# define STM32_NDAC 2 /* 12-bit DAC1-2 */ # define STM32_NDAC 2 /* 12-bit DAC1-2 */
# define STM32_NCRC 1 /* CRC */ # define STM32_NCRC 1 /* CRC */
@@ -194,7 +194,7 @@
# define STM32_NCAN 2 /* CAN1-2 */ # define STM32_NCAN 2 /* CAN1-2 */
# define STM32_NSDIO 1 /* SDIO */ # define STM32_NSDIO 1 /* SDIO */
# define STM32_NUSBOTG 1 /* USB OTG FS/HS */ # define STM32_NUSBOTG 1 /* USB OTG FS/HS */
# define STM32_NGPIO 144 /* GPIOA-I */ # define STM32_NGPIO 139 /* GPIOA-I */
# define STM32_NADC 3 /* 12-bit ADC1-3, 16 channels */ # define STM32_NADC 3 /* 12-bit ADC1-3, 16 channels */
# define STM32_NDAC 2 /* 12-bit DAC1-2 */ # define STM32_NDAC 2 /* 12-bit DAC1-2 */
# define STM32_NCRC 1 /* CRC */ # define STM32_NCRC 1 /* CRC */
@@ -224,7 +224,7 @@
# define STM32_NCAN 2 /* CAN1-2 */ # define STM32_NCAN 2 /* CAN1-2 */
# define STM32_NSDIO 1 /* SDIO */ # define STM32_NSDIO 1 /* SDIO */
# define STM32_NUSBOTG 1 /* USB OTG FS/HS */ # define STM32_NUSBOTG 1 /* USB OTG FS/HS */
# define STM32_NGPIO 144 /* GPIOA-I */ # define STM32_NGPIO 139 /* GPIOA-I */
# define STM32_NADC 3 /* 12-bit ADC1-3, 24 channels */ # define STM32_NADC 3 /* 12-bit ADC1-3, 24 channels */
# define STM32_NDAC 2 /* 12-bit DAC1-2 */ # define STM32_NDAC 2 /* 12-bit DAC1-2 */
# define STM32_NCRC 1 /* CRC */ # define STM32_NCRC 1 /* CRC */
@@ -254,7 +254,7 @@
# define STM32_NCAN 2 /* CAN1-2 */ # define STM32_NCAN 2 /* CAN1-2 */
# define STM32_NSDIO 1 /* SDIO */ # define STM32_NSDIO 1 /* SDIO */
# define STM32_NUSBOTG 1 /* USB OTG FS/HS */ # define STM32_NUSBOTG 1 /* USB OTG FS/HS */
# define STM32_NGPIO 144 /* GPIOA-I */ # define STM32_NGPIO 139 /* GPIOA-I */
# define STM32_NADC 3 /* 12-bit ADC1-3, 16 channels */ # define STM32_NADC 3 /* 12-bit ADC1-3, 16 channels */
# define STM32_NDAC 2 /* 12-bit DAC1-2 */ # define STM32_NDAC 2 /* 12-bit DAC1-2 */
# define STM32_NCRC 1 /* CRC */ # define STM32_NCRC 1 /* CRC */
@@ -284,7 +284,7 @@
# define STM32_NCAN 2 /* CAN1-2 */ # define STM32_NCAN 2 /* CAN1-2 */
# define STM32_NSDIO 1 /* SDIO */ # define STM32_NSDIO 1 /* SDIO */
# define STM32_NUSBOTG 1 /* USB OTG FS/HS */ # define STM32_NUSBOTG 1 /* USB OTG FS/HS */
# define STM32_NGPIO 144 /* GPIOA-I */ # define STM32_NGPIO 139 /* GPIOA-I */
# define STM32_NADC 3 /* 12-bit ADC1-3, 16 channels */ # define STM32_NADC 3 /* 12-bit ADC1-3, 16 channels */
# define STM32_NDAC 2 /* 12-bit DAC1-2 */ # define STM32_NDAC 2 /* 12-bit DAC1-2 */
# define STM32_NCRC 1 /* CRC */ # define STM32_NCRC 1 /* CRC */
@@ -314,7 +314,7 @@
# define STM32_NCAN 2 /* CAN1-2 */ # define STM32_NCAN 2 /* CAN1-2 */
# define STM32_NSDIO 1 /* SDIO */ # define STM32_NSDIO 1 /* SDIO */
# define STM32_NUSBOTG 1 /* USB OTG FS/HS */ # define STM32_NUSBOTG 1 /* USB OTG FS/HS */
# define STM32_NGPIO 144 /* GPIOA-I */ # define STM32_NGPIO 139 /* GPIOA-I */
# define STM32_NADC 3 /* 12-bit ADC1-3, 24 channels */ # define STM32_NADC 3 /* 12-bit ADC1-3, 24 channels */
# define STM32_NDAC 2 /* 12-bit DAC1-2 */ # define STM32_NDAC 2 /* 12-bit DAC1-2 */
# define STM32_NCRC 1 /* CRC */ # define STM32_NCRC 1 /* CRC */
@@ -344,7 +344,7 @@
# define STM32_NCAN 2 /* CAN1-2 */ # define STM32_NCAN 2 /* CAN1-2 */
# define STM32_NSDIO 1 /* SDIO */ # define STM32_NSDIO 1 /* SDIO */
# define STM32_NUSBOTG 1 /* USB OTG FS/HS */ # define STM32_NUSBOTG 1 /* USB OTG FS/HS */
# define STM32_NGPIO 144 /* GPIOA-I */ # define STM32_NGPIO 139 /* GPIOA-I */
# define STM32_NADC 3 /* 12-bit ADC1-3, 24 channels */ # define STM32_NADC 3 /* 12-bit ADC1-3, 24 channels */
# define STM32_NDAC 2 /* 12-bit DAC1-2 */ # define STM32_NDAC 2 /* 12-bit DAC1-2 */
# define STM32_NCRC 1 /* CRC */ # define STM32_NCRC 1 /* CRC */
@@ -374,7 +374,7 @@
# define STM32_NCAN 2 /* CAN1-2 */ # define STM32_NCAN 2 /* CAN1-2 */
# define STM32_NSDIO 1 /* SDIO */ # define STM32_NSDIO 1 /* SDIO */
# define STM32_NUSBOTG 1 /* USB OTG FS/HS */ # define STM32_NUSBOTG 1 /* USB OTG FS/HS */
# define STM32_NGPIO 144 /* GPIOA-I */ # define STM32_NGPIO 139 /* GPIOA-I */
# define STM32_NADC 3 /* 12-bit ADC1-3, 24 channels */ # define STM32_NADC 3 /* 12-bit ADC1-3, 24 channels */
# define STM32_NDAC 2 /* 12-bit DAC1-2 */ # define STM32_NDAC 2 /* 12-bit DAC1-2 */
# define STM32_NCRC 1 /* CRC */ # define STM32_NCRC 1 /* CRC */
@@ -404,7 +404,7 @@
# define STM32_NCAN 2 /* CAN1-2 */ # define STM32_NCAN 2 /* CAN1-2 */
# define STM32_NSDIO 1 /* SDIO */ # define STM32_NSDIO 1 /* SDIO */
# define STM32_NUSBOTG 1 /* USB OTG FS/HS */ # define STM32_NUSBOTG 1 /* USB OTG FS/HS */
# define STM32_NGPIO 144 /* GPIOA-I */ # define STM32_NGPIO 139 /* GPIOA-I */
# define STM32_NADC 3 /* 12-bit ADC1-3, 24 channels */ # define STM32_NADC 3 /* 12-bit ADC1-3, 24 channels */
# define STM32_NDAC 2 /* 12-bit DAC1-2 */ # define STM32_NDAC 2 /* 12-bit DAC1-2 */
# define STM32_NCRC 1 /* CRC */ # define STM32_NCRC 1 /* CRC */
arch/arm/src/stm32/chip/stm32f103ze_pinmap.h
+7 -1
View File
@@ -46,7 +46,13 @@
* Pre-processor Definitions * Pre-processor Definitions
************************************************************************************/ ************************************************************************************/
/* Alternate Pin Functions: */ /* Alternate Pin Functions */
/* Additional effort is required to select specific GPIO options such as frequency,
* open-drain/push-pull, and pull-up/down!
*/
#warning "Missing logic"
/* TIMERS */ /* TIMERS */
arch/arm/src/stm32/chip/stm32f40xxx_pinmap.h
+504 -1
View File
File diff suppressed because it is too large Load Diff
arch/arm/src/stm32/stm32_gpio.h
+136 -65
View File
@@ -74,11 +74,18 @@ extern "C" {
#if defined(CONFIG_STM32_STM32F10XX) #if defined(CONFIG_STM32_STM32F10XX)
/* 16-bit Encoding: /* 16-bit Encoding:
*
* 1111 1100 0000 0000
* 5432 1098 7654 3210
* ---- ---- ---- ----
* OFFS SX.. VPPP BBBB * OFFS SX.. VPPP BBBB
*/ */
/* Output mode: /* Output mode:
* *
* 1111 1100 0000 0000
* 5432 1098 7654 3210
* ---- ---- ---- ----
* O... .... .... .... * O... .... .... ....
*/ */
@@ -90,6 +97,9 @@ extern "C" {
* If the pin is an input, this bit is overloaded to provide the qualifier to\ * If the pin is an input, this bit is overloaded to provide the qualifier to\
* distinquish input pull-up and -down: * distinquish input pull-up and -down:
* *
* 1111 1100 0000 0000
* 5432 1098 7654 3210
* ---- ---- ---- ----
* .... .... V... .... * .... .... V... ....
*/ */
@@ -97,6 +107,10 @@ extern "C" {
#define GPIO_OUTPUT_CLEAR (0) #define GPIO_OUTPUT_CLEAR (0)
/* These bits set the primary function of the pin: /* These bits set the primary function of the pin:
*
* 1111 1100 0000 0000
* 5432 1098 7654 3210
* ---- ---- ---- ----
* .FF. .... .... .... * .FF. .... .... ....
*/ */
@@ -115,6 +129,10 @@ extern "C" {
# define GPIO_CNF_AFOD (3 << GPIO_CNF_SHIFT) /* Alternate function open-drain */ # define GPIO_CNF_AFOD (3 << GPIO_CNF_SHIFT) /* Alternate function open-drain */
/* Maximum frequency selection: /* Maximum frequency selection:
*
* 1111 1100 0000 0000
* 5432 1098 7654 3210
* ---- ---- ---- ----
* ...S S... .... .... * ...S S... .... ....
*/ */
@@ -126,12 +144,20 @@ extern "C" {
# define GPIO_MODE_50MHz (3 << GPIO_MODE_SHIFT) /* Output mode, max speed 50 MHz */ # define GPIO_MODE_50MHz (3 << GPIO_MODE_SHIFT) /* Output mode, max speed 50 MHz */
/* External interrupt selection (GPIO inputs only): /* External interrupt selection (GPIO inputs only):
*
* 1111 1100 0000 0000
* 5432 1098 7654 3210
* ---- ---- ---- ----
* .... .X.. .... .... * .... .X.. .... ....
*/ */
#define GPIO_EXTI (1 << 10) /* Bit 10: Configure as EXTI interrupt */ #define GPIO_EXTI (1 << 10) /* Bit 10: Configure as EXTI interrupt */
/* This identifies the GPIO port: /* This identifies the GPIO port:
*
* 1111 1100 0000 0000
* 5432 1098 7654 3210
* ---- ---- ---- ----
* .... .... .PPP .... * .... .... .PPP ....
*/ */
@@ -146,6 +172,10 @@ extern "C" {
# define GPIO_PORTG (6 << GPIO_PORT_SHIFT) /* GPIOG */ # define GPIO_PORTG (6 << GPIO_PORT_SHIFT) /* GPIOG */
/* This identifies the bit in the port: /* This identifies the bit in the port:
*
* 1111 1100 0000 0000
* 5432 1098 7654 3210
* ---- ---- ---- ----
* .... .... .... BBBB * .... .... .... BBBB
*/ */
@@ -170,106 +200,143 @@ extern "C" {
#elif defined(CONFIG_STM32_STM32F40XX) #elif defined(CONFIG_STM32_STM32F40XX)
/* 16-bit Encoding: /* Each port bit of the general-purpose I/O (GPIO) ports can be individually configured
* Inputs: MMUU X... PPPP BBBB * by software in several modes:
* Outputs: MMUU FFOV PPPP BBBB *
* Alternate Functions: MMUU AAAA PPPP BBBB * - Input floating
* Analog: MMUU .... PPPP BBBB * - Input pull-up
* - Input-pull-down
* - Output open-drain with pull-up or pull-down capability
* - Output push-pull with pull-up or pull-down capability
* - Alternate function push-pull with pull-up or pull-down capability
* - Alternate function open-drain with pull-up or pull-down capability
* - Analog
*
* 20-bit Encoding: 1111 1111 1100 0000 0000
* 9876 5432 1098 7654 3210
* ---- ---- ---- ---- ----
* Inputs: MMUU .... ...X PPPP BBBB
* Outputs: MMUU .... FFOV PPPP BBBB
* Alternate Functions: MMUU AAAA FFO. PPPP BBBB
* Analog: MM.. .... .... PPPP BBBB
*/ */
/* Common mode encodings ***********************************************************/
/* Mode: /* Mode:
* *
* MM.. .... .... .... * 1111 1111 1100 0000 0000
* 9876 5432 1098 7654 3210
* ---- ---- ---- ---- ----
* MM.. .... .... .... ....
*/ */
#define GPIO_MODE_SHIFT (14) /* Bits 14-15: GPIO port mode */ #define GPIO_MODE_SHIFT (18) /* Bits 18-19: GPIO port mode */
#define GPIO_MODE_MASK (3 << GPIO_MODE_SHIFT) #define GPIO_MODE_MASK (3 << GPIO_MODE_SHIFT)
#define GPIO_INPUT (0 << GPIO_MODE_SHIFT) /* Input mode */ #define GPIO_INPUT (0 << GPIO_MODE_SHIFT) /* Input mode */
#define GPIO_OUTPUT (1 << GPIO_MODE_SHIFT) /* General purpose output mode */ #define GPIO_OUTPUT (1 << GPIO_MODE_SHIFT) /* General purpose output mode */
#define GPIO_ALT (2 << GPIO_MODE_SHIFT) /* Alternate function mode */ #define GPIO_ALT (2 << GPIO_MODE_SHIFT) /* Alternate function mode */
#define GPIO_ANALOG (3 << GPIO_MODE_SHIFT) /* Analog mode */ #define GPIO_ANALOG (3 << GPIO_MODE_SHIFT) /* Analog mode */
/* Output pull-ups/downs: /* Input/output pull-ups/downs (not used with analog):
* ..UU .... .... .... *
* 1111 1111 1100 0000 0000
* 9876 5432 1098 7654 3210
* ---- ---- ---- ---- ----
* ..UU .... .... .... ....
*/ */
#define GPIO_PUPD_SHIFT (12) /* Bits 12-13: Pull-up/pull down */ #define GPIO_PUPD_SHIFT (16) /* Bits 16-17: Pull-up/pull down */
#define GPIO_PUPD_MASK (3 << GPIO_PUPD_SHIFT) #define GPIO_PUPD_MASK (3 << GPIO_PUPD_SHIFT)
# define GPIO_FLLOAT (0 << GPIO_PUPD_SHIFT) /* No pull-up, pull-down */ # define GPIO_FLOAT (0 << GPIO_PUPD_SHIFT) /* No pull-up, pull-down */
# define GPIO_PULLUP (1 << GPIO_PUPD_SHIFT) /* Pull-up */ # define GPIO_PULLUP (1 << GPIO_PUPD_SHIFT) /* Pull-up */
# define GPIO_PULLUP (2 << GPIO_PUPD_SHIFT) /* Pull-down */ # define GPIO_PULLDOWN (2 << GPIO_PUPD_SHIFT) /* Pull-down */
/* Input (only) mode encodings *****************************************************/ /* Alternate Functions:
/* Outputs: MMUU X... PPPP BBBB */ *
* 1111 1111 1100 0000 0000
/* External interrupt selection (GPIO inputs only): * 9876 5432 1098 7654 3210
* .... X... .... .... * ---- ---- ---- ---- ----
* .... AAAA .... .... ....
*/ */
#define GPIO_EXTI (1 << 11) /* Bit 11: Configure as EXTI interrupt */ #define GPIO_AF_SHIFT (12) /* Bits 12-15: Alternate function */
#define GPIO_AF_MASK (15 << GPIO_AF_SHIFT)
# define GPIO_AF(n) ((n) << GPIO_AF_SHIFT)
# define GPIO_AF0 (0 << GPIO_AF_SHIFT)
# define GPIO_AF1 (1 << GPIO_AF_SHIFT)
# define GPIO_AF2 (2 << GPIO_AF_SHIFT)
# define GPIO_AF3 (3 << GPIO_AF_SHIFT)
# define GPIO_AF4 (4 << GPIO_AF_SHIFT)
# define GPIO_AF5 (5 << GPIO_AF_SHIFT)
# define GPIO_AF6 (6 << GPIO_AF_SHIFT)
# define GPIO_AF7 (7 << GPIO_AF_SHIFT)
# define GPIO_AF8 (8 << GPIO_AF_SHIFT)
# define GPIO_AF9 (9 << GPIO_AF_SHIFT)
# define GPIO_AF10 (10 << GPIO_AF_SHIFT)
# define GPIO_AF11 (11 << GPIO_AF_SHIFT)
# define GPIO_AF12 (12 << GPIO_AF_SHIFT)
# define GPIO_AF13 (13 << GPIO_AF_SHIFT)
# define GPIO_AF14 (14 << GPIO_AF_SHIFT)
# define GPIO_AF15 (15 << GPIO_AF_SHIFT)
/* Output (only) mode encodings ****************************************************/ /* Output/Alt function frequency selection:
/* Outputs: MMUU FFOV PPPP BBBB */ *
* 1111 1111 1100 0000 0000
/* Output frequency selection: * 9876 5432 1098 7654 3210
* .... FF.. .... .... * ---- ---- ---- ---- ----
* .... .... FF.. .... ....
*/ */
#define GPIO_OUTPUT_MODE_SHIFT (10) /* Bits 10-11: GPIO frequency selection */ #define GPIO_MODE_SHIFT (10) /* Bits 10-11: GPIO frequency selection */
#define GPIO_OUTPUT_MODE_MASK (3 << GPIO_MODE_SHIFT) #define GPIO_MODE_MASK (3 << GPIO_MODE_SHIFT)
# define GPIO_OUTPUT_MODE_2MHz (0 << GPIO_MODE_SHIFT) /* 2 MHz Low speed output */ # define GPIO_MODE_2MHz (0 << GPIO_MODE_SHIFT) /* 2 MHz Low speed output */
# define GPIO_OUTPUT_MODE_25MHz (1 << GPIO_MODE_SHIFT) /* 25 MHz Medium speed output */ # define GPIO_MODE_25MHz (1 << GPIO_MODE_SHIFT) /* 25 MHz Medium speed output */
# define GPIO_OUTPUT_MODE_20MHz (2 << GPIO_MODE_SHIFT) /* 50 MHz Fast speed output */ # define GPIO_MODE_20MHz (2 << GPIO_MODE_SHIFT) /* 50 MHz Fast speed output */
# define GPIO_OUTPUT_MODE_100MHz (3 << GPIO_MODE_SHIFT) /* 100 MHz High speed output */ # define GPIO_MODE_100MHz (3 << GPIO_MODE_SHIFT) /* 100 MHz High speed output */
/* Output type selection: /* Output/Alt function type selection:
* .... ..O. .... .... *
* 1111 1111 1100 0000 0000
* 9876 5432 1098 7654 3210
* ---- ---- ---- ---- ----
* .... .... ..O. .... ....
*/ */
#define GPIO_OUTPUT_OPENDRAM (1 << 9) /* Open-drain output */ #define GPIO_OPENDRAM (1 << 9) /* Bit9: 1=Open-drain output */
#define GPIO_OUTPUT_PUSHPULL (0) /* Push-pull output */ #define GPIO_PUSHPULL (0) /* Bit9: 0=Push-pull output */
/* If the pin is a GPIO digital output, then this identifies the initial output value. /* If the pin is a GPIO digital output, then this identifies the initial output value.
* If the pin is an input, this bit is overloaded to provide the qualifier to * If the pin is an input, this bit is overloaded to provide the qualifier to
* distinquish input pull-up and -down: * distinquish input pull-up and -down:
* *
* .... ...V .... .... * 1111 1111 1100 0000 0000
* 9876 5432 1098 7654 3210
* ---- ---- ---- ---- ----
* .... .... ...V .... ....
*/ */
#define GPIO_OUTPUT_SET (1 << 8) /* Bit 8: If output, inital value of output */ #define GPIO_OUTPUT_SET (1 << 8) /* Bit 8: If output, inital value of output */
#define GPIO_OUTPUT_CLEAR (0) #define GPIO_OUTPUT_CLEAR (0)
/* Alternate function (only) mode encodings ****************************************/ /* External interrupt selection (GPIO inputs only):
/* Alternate Functions: MMUU AAAA PPPP BBBB */ *
* 1111 1111 1100 0000 0000
#define GPIO_ALTFUNC_SHIFT (8) /* Bits 8-11: Alternate function */ * 9876 5432 1098 7654 3210
#define GPIO_ALTFUNC_MASK (15 << GPIO_ALTFUNC_SHIFT) * ---- ---- ---- ---- ----
# define GPIO_ALTFUNC(n) ((n) << GPIO_ALTFUNC_SHIFT) * .... .... ...X .... ....
# define GPIO_ALTFUNC_0 (0 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_1 (1 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_2 (2 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_3 (3 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_4 (4 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_5 (5 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_6 (6 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_7 (7 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_8 (8 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_9 (9 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_10 (10 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_11 (11 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_12 (12 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_13 (13 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_14 (14 << GPIO_ALTFUNC_SHIFT)
# define GPIO_ALTFUNC_15 (15 << GPIO_ALTFUNC_SHIFT)
/* Common port encodings ***********************************************************/
/* This identifies the GPIO port:
* .... .... PPPP ....
*/ */
#define GPIO_PORT_SHIFT 4 /* Bit 4-6: Port number */ #define GPIO_EXTI (1 << 8) /* Bit 8: Configure as EXTI interrupt */
#define GPIO_PORT_MASK (7 << GPIO_PORT_SHIFT)
/* This identifies the GPIO port:
*
* 1111 1111 1100 0000 0000
* 9876 5432 1098 7654 3210
* ---- ---- ---- ---- ----
* .... .... .... PPPP ....
*/
#define GPIO_PORT_SHIFT (4) /* Bit 4-7: Port number */
#define GPIO_PORT_MASK (15 << GPIO_PORT_SHIFT)
# define GPIO_PORTA (0 << GPIO_PORT_SHIFT) /* GPIOA */ # define GPIO_PORTA (0 << GPIO_PORT_SHIFT) /* GPIOA */
# define GPIO_PORTB (1 << GPIO_PORT_SHIFT) /* GPIOB */ # define GPIO_PORTB (1 << GPIO_PORT_SHIFT) /* GPIOB */
# define GPIO_PORTC (2 << GPIO_PORT_SHIFT) /* GPIOC */ # define GPIO_PORTC (2 << GPIO_PORT_SHIFT) /* GPIOC */
@@ -281,10 +348,14 @@ extern "C" {
# define GPIO_PORTI (8 << GPIO_PORT_SHIFT) /* GPIOI */ # define GPIO_PORTI (8 << GPIO_PORT_SHIFT) /* GPIOI */
/* This identifies the bit in the port: /* This identifies the bit in the port:
* .... .... .... BBBB *
* 1111 1111 1100 0000 0000
* 9876 5432 1098 7654 3210
* ---- ---- ---- ---- ----
* .... .... .... .... BBBB
*/ */
#define GPIO_PIN_SHIFT 0 /* Bits 0-3: GPIO number: 0-15 */ #define GPIO_PIN_SHIFT (0) /* Bits 0-3: GPIO number: 0-15 */
#define GPIO_PIN_MASK (15 << GPIO_PIN_SHIFT) #define GPIO_PIN_MASK (15 << GPIO_PIN_SHIFT)
# define GPIO_PIN0 (0 << GPIO_PIN_SHIFT) # define GPIO_PIN0 (0 << GPIO_PIN_SHIFT)
# define GPIO_PIN1 (1 << GPIO_PIN_SHIFT) # define GPIO_PIN1 (1 << GPIO_PIN_SHIFT)