diff options
Diffstat (limited to 'src/mainboard/google/oak/chromeos.c')
-rw-r--r-- | src/mainboard/google/oak/chromeos.c | 86 |
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); } |