scottk/OpenCellular
1
0
Fork 0
mirror of https://github.com/Telecominfraproject/OpenCellular.git synced 2025-12-27 18:25:05 +00:00
Code Issues Packages Projects Releases Wiki Activity

GPIO: Add gpio_reset function

Browse Source 
The gpio_reset function returns a GPIO to its initialy configured state.
Using it removes a few more uses of gpio_list.

Signed-off-by: Anton Staaf <robotboy@chromium.org>

BRANCH=None
BUG=None
TEST=make buildall -j

Change-Id: Ie24e8e8a96d0ff50f521a918e80ed2b379f8c1a9
Reviewed-on: https://chromium-review.googlesource.com/321951
Commit-Ready: Anton Staaf <robotboy@chromium.org>
Tested-by: Anton Staaf <robotboy@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
Anton Staaf
2016-01-13 11:14:23 -08:00
committed by chrome-bot
parent e933d0b7b6
commit 6e4e1ccc82
4 changed files with 21 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
chip/lm4/uart.c
View File

@@ -243,8 +243,7 @@ void uart_enter_dsleep(void)
* Set the UART0 RX pin to be a generic GPIO with the flags defined
* in the board.c file.
*/
gpio_set_flags_by_mask(g.port, g.mask, g.flags);
gpio_set_alternate_function(g.port, g.mask, -1);
gpio_reset(GPIO_UART0_RX);
/* Clear any pending GPIO interrupts on the UART0 RX pin. */
LM4_GPIO_ICR(g.port) = g.mask;

5
chip/mec1322/uart.c
View File

@@ -172,8 +172,6 @@ void uart_init(void)
#ifdef CONFIG_LOW_POWER_IDLE
void uart_enter_dsleep(void)
{
const struct gpio_info g = gpio_list[GPIO_UART0_RX];
/* Disable the UART interrupt. */
task_disable_irq(MEC1322_IRQ_UART); /* NVIC interrupt for UART=13 */
@@ -181,8 +179,7 @@ void uart_enter_dsleep(void)
* Set the UART0 RX pin to be a GPIO-162(fixed pin) interrupt
* with the flags defined in the gpio.inc file.
*/
gpio_set_flags_by_mask(g.port, g.mask, g.flags);
gpio_set_alternate_function(g.port, g.mask, -1);
gpio_reset(GPIO_UART0_RX);
/* power-down/de-activate UART0 */
MEC1322_UART_ACT &= ~(1 << 0);

8
common/gpio.c
View File

@@ -114,6 +114,14 @@ void gpio_set_flags(enum gpio_signal signal, int flags)
gpio_set_flags_by_mask(g->port, g->mask, flags);
}
void gpio_reset(enum gpio_signal signal)
{
const struct gpio_info *g = gpio_list + signal;
gpio_set_flags_by_mask(g->port, g->mask, g->flags);
gpio_set_alternate_function(g->port, g->mask, -1);
}
const char *gpio_get_name(enum gpio_signal signal)
{
return gpio_list[signal].name;

11
include/gpio.h
View File

@@ -191,6 +191,17 @@ void gpio_set_flags(enum gpio_signal signal, int flags);
* @param value New value for signal (0 = low, != high */
void gpio_set_level(enum gpio_signal signal, int value);
/**
* Reset the GPIO flags and alternate function state
*
* This returns the GPIO to it's default state of being a GPIO (not
* configured as an alternate function) with its default flags (those
* specified in gpio.inc when it was defined).
*
* @param signal Signal to reset
*/
void gpio_reset(enum gpio_signal signal);
/**
* Enable interrupts for the signal.
*