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ypr0/ypr1: GPIO handling API refactoring

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The GPIO APIs for ypr0 and ypr1 targets was messy, requiring a
direct communication via several ioctls calls.
Since it is planned to add support to other devices, more GPIO are
going to be used. For that reason the functions shall be clear and
easy to use.

Change-Id: Ia2304335e1fed1305cc2c4320bd4c097e13079be
This commit is contained in:
Lorenzo Miori 2015-01-04 15:13:41 +01:00 • committed by Gerrit Rockbox
parent 6879dec6ec
commit f35d63bc21
5 changed files with 139 additions and 29 deletions
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27
firmware/target/hosted/samsungypr/ypr0/button-ypr0.c
View file

@ -31,31 +31,31 @@ int button_read_device(void)
int key = BUTTON_NONE;
/* Check for all the keys */
if (!gpio_control(DEV_CTRL_GPIO_IS_HIGH, GPIO_USER_KEY, 0, 0)) {
if (!gpio_get(GPIO_USER_KEY)) {
key |= BUTTON_USER;
}
if (!gpio_control(DEV_CTRL_GPIO_IS_HIGH, GPIO_CENTRAL_KEY, 0, 0)) {
if (!gpio_get(GPIO_CENTRAL_KEY)) {
key |= BUTTON_SELECT;
}
if (!gpio_control(DEV_CTRL_GPIO_IS_HIGH, GPIO_UP_KEY, 0, 0)) {
if (!gpio_get(GPIO_UP_KEY)) {
key |= BUTTON_UP;
}
if (!gpio_control(DEV_CTRL_GPIO_IS_HIGH, GPIO_DOWN_KEY, 0, 0)) {
if (!gpio_get(GPIO_DOWN_KEY)) {
key |= BUTTON_DOWN;
}
if (!gpio_control(DEV_CTRL_GPIO_IS_HIGH, GPIO_LEFT_KEY, 0, 0)) {
if (!gpio_get(GPIO_LEFT_KEY)) {
key |= BUTTON_LEFT;
}
if (!gpio_control(DEV_CTRL_GPIO_IS_HIGH, GPIO_RIGHT_KEY, 0, 0)) {
if (!gpio_get(GPIO_RIGHT_KEY)) {
key |= BUTTON_RIGHT;
}
if (!gpio_control(DEV_CTRL_GPIO_IS_HIGH, GPIO_MENU_KEY, 0, 0)) {
if (!gpio_get(GPIO_MENU_KEY)) {
key |= BUTTON_MENU;
}
if (!gpio_control(DEV_CTRL_GPIO_IS_HIGH, GPIO_BACK_KEY, 0, 0)) {
if (!gpio_get(GPIO_BACK_KEY)) {
key |= BUTTON_BACK;
}
if (gpio_control(DEV_CTRL_GPIO_IS_HIGH, GPIO_POWER_KEY, 0, 0)) {
if (gpio_get(GPIO_POWER_KEY)) {
key |= BUTTON_POWER;
}
@ -65,14 +65,15 @@ int button_read_device(void)
bool headphones_inserted(void)
{
/* GPIO low - 0 - means headphones inserted */
return !gpio_control(DEV_CTRL_GPIO_IS_HIGH, GPIO_HEADPHONE_SENSE, 0, 0);
return !gpio_get(GPIO_HEADPHONE_SENSE);
}
void button_init_device(void)
{
/* Setup GPIO pin for headphone sense, copied from OF */
gpio_control(DEV_CTRL_GPIO_SET_MUX, GPIO_HEADPHONE_SENSE, CONFIG_SION, PAD_CTL_47K_PU);
gpio_control(DEV_CTRL_GPIO_SET_INPUT, GPIO_HEADPHONE_SENSE, CONFIG_SION, PAD_CTL_47K_PU);
gpio_set_iomux(GPIO_HEADPHONE_SENSE, CONFIG_GPIO);
gpio_set_pad(GPIO_HEADPHONE_SENSE, PAD_CTL_47K_PU);
gpio_direction_input(GPIO_HEADPHONE_SENSE);
/* No need to initialize any GPIO pin, since this is done loading the r0Btn module */
}
@ -82,6 +83,6 @@ void button_init_device(void)
void button_close_device(void)
{
/* Don't know the precise meaning, but it's done as in the OF, so copied there */
gpio_control(DEV_CTRL_GPIO_UNSET_MUX, GPIO_HEADPHONE_SENSE, CONFIG_SION, 0);
gpio_free_iomux(GPIO_HEADPHONE_SENSE, CONFIG_GPIO);
}
#endif /* BUTTON_DRIVER_CLOSE */