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path: root/bsp/dm365/drivers/gpio.c
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Diffstat (limited to 'bsp/dm365/drivers/gpio.c')
-rw-r--r--bsp/dm365/drivers/gpio.c194
1 files changed, 97 insertions, 97 deletions
diff --git a/bsp/dm365/drivers/gpio.c b/bsp/dm365/drivers/gpio.c
index 47c40b2e19..b226c736c8 100644
--- a/bsp/dm365/drivers/gpio.c
+++ b/bsp/dm365/drivers/gpio.c
@@ -4,159 +4,159 @@
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
- * Date Author Notes
- * 2011-01-13 weety first version
+ * Date Author Notes
+ * 2011-01-13 weety first version
*/
#include <rtthread.h>
#include "gpio.h"
-#define GPIO0_BASE (DAVINCI_GPIO_BASE + 0x10)
-#define GPIO1_BASE (DAVINCI_GPIO_BASE + 0x38)
-#define GPIO2_BASE (DAVINCI_GPIO_BASE + 0x60)
-#define GPIO3_BASE (DAVINCI_GPIO_BASE + 0x88)
+#define GPIO0_BASE (DAVINCI_GPIO_BASE + 0x10)
+#define GPIO1_BASE (DAVINCI_GPIO_BASE + 0x38)
+#define GPIO2_BASE (DAVINCI_GPIO_BASE + 0x60)
+#define GPIO3_BASE (DAVINCI_GPIO_BASE + 0x88)
static unsigned int dm365_gpio_base = (unsigned int)GPIO0_BASE;
-#define GPIO_OE (dm365_gpio_base + 0x00)
-#define GPIO_DATAIN (dm365_gpio_base + 0x10)
-#define GPIO_DATAOUT (dm365_gpio_base + 0x04)
-#define GPIO_CLROUT (dm365_gpio_base + 0x0C)
-#define GPIO_SETOUT (dm365_gpio_base + 0x08)
+#define GPIO_OE (dm365_gpio_base + 0x00)
+#define GPIO_DATAIN (dm365_gpio_base + 0x10)
+#define GPIO_DATAOUT (dm365_gpio_base + 0x04)
+#define GPIO_CLROUT (dm365_gpio_base + 0x0C)
+#define GPIO_SETOUT (dm365_gpio_base + 0x08)
-#define gpio_dirin(n) *(volatile unsigned int *)((GPIO_OE)) |= 1<<(n)
-#define gpio_dirout(n) *(volatile unsigned int *)((GPIO_OE)) &= ~(1u<<(n))
-#define gpio_set(n) *(volatile unsigned int *)((GPIO_SETOUT)) = 1<<(n)
-#define gpio_clr(n) *(volatile unsigned int *)((GPIO_CLROUT)) = 1<<(n)
-#define gpio_get(n) ( ( *(volatile unsigned int *)((GPIO_DATAIN)) & (1<<(n)) ) ? 1 : 0 )
+#define gpio_dirin(n) *(volatile unsigned int *)((GPIO_OE)) |= 1<<(n)
+#define gpio_dirout(n) *(volatile unsigned int *)((GPIO_OE)) &= ~(1u<<(n))
+#define gpio_set(n) *(volatile unsigned int *)((GPIO_SETOUT)) = 1<<(n)
+#define gpio_clr(n) *(volatile unsigned int *)((GPIO_CLROUT)) = 1<<(n)
+#define gpio_get(n) ( ( *(volatile unsigned int *)((GPIO_DATAIN)) & (1<<(n)) ) ? 1 : 0 )
#define GPIO_GRP_MASK (5)
-
+
static int gpio_to_base(unsigned int gpio)
{
- unsigned int grp_idx;
- int ret;
+ unsigned int grp_idx;
+ int ret;
- grp_idx = gpio >> GPIO_GRP_MASK;
+ grp_idx = gpio >> GPIO_GRP_MASK;
- switch (grp_idx) {
- case 0:
- dm365_gpio_base = (unsigned int)GPIO0_BASE;
- ret = 0;
- break;
- case 1:
- dm365_gpio_base = (unsigned int)GPIO1_BASE;
- ret = 0;
- break;
- case 2:
- dm365_gpio_base = (unsigned int)GPIO2_BASE;
- ret = 0;
- break;
- case 3:
- dm365_gpio_base = (unsigned int)GPIO3_BASE;
- ret = 0;
- break;
- default:
- ret =-RT_EIO;
- break;
- }
- return ret;
+ switch (grp_idx) {
+ case 0:
+ dm365_gpio_base = (unsigned int)GPIO0_BASE;
+ ret = 0;
+ break;
+ case 1:
+ dm365_gpio_base = (unsigned int)GPIO1_BASE;
+ ret = 0;
+ break;
+ case 2:
+ dm365_gpio_base = (unsigned int)GPIO2_BASE;
+ ret = 0;
+ break;
+ case 3:
+ dm365_gpio_base = (unsigned int)GPIO3_BASE;
+ ret = 0;
+ break;
+ default:
+ ret =-RT_EIO;
+ break;
+ }
+ return ret;
}
int gpio_direction_input(unsigned int gpio)
{
- unsigned int offset;
- int ret=0;
+ unsigned int offset;
+ int ret=0;
- rt_ubase_t temp = rt_hw_interrupt_disable();
- ret = gpio_to_base(gpio);
- if (ret < 0) {
- goto gpio_free;
- }
- offset = gpio & ((1 << GPIO_GRP_MASK) -1);
+ rt_ubase_t temp = rt_hw_interrupt_disable();
+ ret = gpio_to_base(gpio);
+ if (ret < 0) {
+ goto gpio_free;
+ }
+ offset = gpio & ((1 << GPIO_GRP_MASK) -1);
- gpio_dirin(offset);
+ gpio_dirin(offset);
gpio_free:
- rt_hw_interrupt_enable(temp);
+ rt_hw_interrupt_enable(temp);
- return ret;
+ return ret;
}
int gpio_direction_output(unsigned int gpio, int value)
{
- unsigned int offset;
- int ret=0;
+ unsigned int offset;
+ int ret=0;
- rt_ubase_t temp = rt_hw_interrupt_disable();
- ret = gpio_to_base(gpio);
- if (ret < 0) {
- goto gpio_free;
- }
+ rt_ubase_t temp = rt_hw_interrupt_disable();
+ ret = gpio_to_base(gpio);
+ if (ret < 0) {
+ goto gpio_free;
+ }
- offset = gpio & ((1 << GPIO_GRP_MASK) -1);
+ offset = gpio & ((1 << GPIO_GRP_MASK) -1);
- if (value) {
- gpio_set(offset);
- }
- else {
- gpio_clr(offset);
- }
+ if (value) {
+ gpio_set(offset);
+ }
+ else {
+ gpio_clr(offset);
+ }
- gpio_dirout(offset);
+ gpio_dirout(offset);
gpio_free:
- rt_hw_interrupt_enable(temp);
+ rt_hw_interrupt_enable(temp);
- return ret;
+ return ret;
}
int gpio_set_value(unsigned int gpio, int value)
{
- unsigned int offset;
- int ret=0;
+ unsigned int offset;
+ int ret=0;
- rt_ubase_t temp = rt_hw_interrupt_disable();
- ret = gpio_to_base(gpio);
- if (ret < 0) {
- goto gpio_free;
- }
+ rt_ubase_t temp = rt_hw_interrupt_disable();
+ ret = gpio_to_base(gpio);
+ if (ret < 0) {
+ goto gpio_free;
+ }
- offset = gpio & ((1 << GPIO_GRP_MASK) -1);
+ offset = gpio & ((1 << GPIO_GRP_MASK) -1);
- if (value) {
- gpio_set(offset);
- }
- else {
- gpio_clr(offset);
- }
+ if (value) {
+ gpio_set(offset);
+ }
+ else {
+ gpio_clr(offset);
+ }
gpio_free:
- rt_hw_interrupt_enable(temp);
+ rt_hw_interrupt_enable(temp);
- return ret;
+ return ret;
}
int gpio_get_value(unsigned int gpio)
{
- unsigned int offset;
- int ret=0;
+ unsigned int offset;
+ int ret=0;
- rt_ubase_t temp = rt_hw_interrupt_disable();
- ret = gpio_to_base(gpio);
- if (ret < 0) {
- goto gpio_free;
- }
+ rt_ubase_t temp = rt_hw_interrupt_disable();
+ ret = gpio_to_base(gpio);
+ if (ret < 0) {
+ goto gpio_free;
+ }
- offset = gpio & ((1 << GPIO_GRP_MASK) -1);
- ret = gpio_get(offset);
+ offset = gpio & ((1 << GPIO_GRP_MASK) -1);
+ ret = gpio_get(offset);
gpio_free:
- rt_hw_interrupt_enable(temp);
+ rt_hw_interrupt_enable(temp);
- return ret;
+ return ret;
}
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