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Diffstat (limited to 'src/mainboard/google/oak/chromeos.c')
-rw-r--r--src/mainboard/google/oak/chromeos.c86
1 files changed, 84 insertions, 2 deletions
diff --git a/src/mainboard/google/oak/chromeos.c b/src/mainboard/google/oak/chromeos.c
index 8d45a13ed2..9f4cbaa313 100644
--- a/src/mainboard/google/oak/chromeos.c
+++ b/src/mainboard/google/oak/chromeos.c
@@ -18,10 +18,88 @@
*/
#include <boot/coreboot_tables.h>
+#include <console/console.h>
+#include <ec/google/chromeec/ec.h>
+#include <ec/google/chromeec/ec_commands.h>
+#include <gpio.h>
+#include <string.h>
#include <vendorcode/google/chromeos/chromeos.h>
+#include "gpio.h"
+
+void setup_chromeos_gpios(void)
+{
+ gpio_input(WRITE_PROTECT);
+ gpio_input_pullup(EC_IN_RW);
+ gpio_input_pullup(EC_IRQ);
+ gpio_input_pullup(LID);
+ gpio_input_pullup(POWER_BUTTON);
+ gpio_output(EC_SUSPEND_L, 1);
+}
+
void fill_lb_gpios(struct lb_gpios *gpios)
{
+ int count = 0;
+
+ /* Write protect : active low */
+ gpios->gpios[count].port = WRITE_PROTECT;
+ gpios->gpios[count].polarity = ACTIVE_LOW;
+ gpios->gpios[count].value = gpio_get(WRITE_PROTECT);
+ strncpy((char *)gpios->gpios[count].name, "write protect",
+ GPIO_MAX_NAME_LENGTH);
+ count++;
+
+ /* Recovery: active high */
+ gpios->gpios[count].port = -1;
+ gpios->gpios[count].polarity = ACTIVE_HIGH;
+ gpios->gpios[count].value = get_recovery_mode_switch();
+ strncpy((char *)gpios->gpios[count].name, "recovery",
+ GPIO_MAX_NAME_LENGTH);
+ count++;
+
+ /* Lid: active high */
+ gpios->gpios[count].port = LID;
+ gpios->gpios[count].polarity = ACTIVE_HIGH;
+ gpios->gpios[count].value = -1;
+ strncpy((char *)gpios->gpios[count].name, "lid", GPIO_MAX_NAME_LENGTH);
+ count++;
+
+ /* Power: active high */
+ gpios->gpios[count].port = POWER_BUTTON;
+ gpios->gpios[count].polarity = ACTIVE_HIGH;
+ gpios->gpios[count].value = -1;
+ strncpy((char *)gpios->gpios[count].name, "power",
+ GPIO_MAX_NAME_LENGTH);
+ count++;
+
+ /* Developer: virtual GPIO active high */
+ gpios->gpios[count].port = -1;
+ gpios->gpios[count].polarity = ACTIVE_HIGH;
+ gpios->gpios[count].value = get_developer_mode_switch();
+ strncpy((char *)gpios->gpios[count].name, "developer",
+ GPIO_MAX_NAME_LENGTH);
+ count++;
+
+ /* EC in RW: active high */
+ gpios->gpios[count].port = EC_IN_RW;
+ gpios->gpios[count].polarity = ACTIVE_HIGH;
+ gpios->gpios[count].value = -1;
+ strncpy((char *)gpios->gpios[count].name, "EC in RW",
+ GPIO_MAX_NAME_LENGTH);
+ count++;
+
+ /* EC interrupt: GPIO active low */
+ gpios->gpios[count].port = EC_IRQ;
+ gpios->gpios[count].polarity = ACTIVE_LOW;
+ gpios->gpios[count].value = -1;
+ strncpy((char *)gpios->gpios[count].name, "EC interrupt",
+ GPIO_MAX_NAME_LENGTH);
+ count++;
+
+ gpios->size = sizeof(*gpios) + (count * sizeof(struct lb_gpio));
+ gpios->count = count;
+
+ printk(BIOS_ERR, "Added %d GPIOS size %d\n", count, gpios->size);
}
int get_developer_mode_switch(void)
@@ -31,10 +109,14 @@ int get_developer_mode_switch(void)
int get_recovery_mode_switch(void)
{
- return 0;
+ uint32_t ec_events;
+
+ ec_events = google_chromeec_get_events_b();
+ return !!(ec_events &
+ EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY));
}
int get_write_protect_state(void)
{
- return 0;
+ return !gpio_get(WRITE_PROTECT);
}