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Add some more GPIO related #defines.

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This includes GPIO port base addresses, MODE[1:0] values, and CNF[1:0]
values.
This commit is contained in:
Uwe Hermann 2009-07-16 14:22:46 +02:00
parent e7567c835c
commit 0fa4cbbdad
1 changed files with 35 additions and 8 deletions
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43
include/libopenstm32/gpio.h
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@ -21,15 +21,42 @@
#ifndef LIBOPENSTM32_GPIO_H
#define LIBOPENSTM32_GPIO_H
#define GPIO_CTRL_LO 0x00
#define GPIO_CTRL_HI 0x04
#define GPIO_INPUT_DATA 0x08
#define GPIO_OUTPUT_DATA 0x0c
#define GPIO_BIT_SET_RESET 0x10
#define GPIO_BIT_RESET 0x14
#define GPIO_LOCK 0x18
#include "libopenstm32.h"
/* TODO */
/* GPIO port base addresses */
#define GPIO_BASE_A (PERIPH_BASE_APB2 + 0x0800)
#define GPIO_BASE_B (PERIPH_BASE_APB2 + 0x0c00)
#define GPIO_BASE_C (PERIPH_BASE_APB2 + 0x1000)
#define GPIO_BASE_D (PERIPH_BASE_APB2 + 0x1400)
#define GPIO_BASE_E (PERIPH_BASE_APB2 + 0x1800)
#define GPIO_BASE_F (PERIPH_BASE_APB2 + 0x1c00)
#define GPIO_BASE_G (PERIPH_BASE_APB2 + 0x2000)
/* Register offsets */
#define GPIO_CTRL_LO 0x00 /* 32 bit */
#define GPIO_CTRL_HI 0x04 /* 32 bit */
#define GPIO_INPUT_DATA 0x08 /* 32 bit, only 15:0 used */
#define GPIO_OUTPUT_DATA 0x0c /* 32 bit, only 15:0 used */
#define GPIO_BIT_SET_RESET 0x10 /* 32 bit */
#define GPIO_BIT_RESET 0x14 /* 16 bit */
#define GPIO_LOCK 0x18 /* 32 bit */
/* Output mode (MODE[1:0]) values */
#define GPIO_MODE_INPUT 0x00 /* Default */
#define GPIO_MODE_OUTPUT_10_MHZ 0x01
#define GPIO_MODE_OUTPUT_2_MHZ 0x02
#define GPIO_MODE_OUTPUT_50_MHZ 0x03
/* CNF[1:0] values when MODE[1:0] is 00 (input mode). */
#define GPIO_CNF_INPUT_ANALOG 0x00
#define GPIO_CNF_INPUT_FLOAT 0x01 /* Default */
#define GPIO_CNF_INPUT_PULL_UPDOWN 0x02
/* CNF[1:0] values when MODE[1:0] is != 00 (one of the output modes). */
#define GPIO_CNF_OUTPUT_PUSHPULL 0x00
#define GPIO_CNF_OUTPUT_OPENDRAIN 0x01
#define GPIO_CNF_OUTPUT_ALTFN_PUSHPULL 0x02
#define GPIO_CNF_OUTPUT_ALTFN_OPENDRAIN 0x03
void gpio_set(int gpio);
void gpio_clear(int gpio);