diff options
Diffstat (limited to 'src/mainboard/google/veyron/chromeos.c')
-rw-r--r-- | src/mainboard/google/veyron/chromeos.c | 70 |
1 files changed, 68 insertions, 2 deletions
diff --git a/src/mainboard/google/veyron/chromeos.c b/src/mainboard/google/veyron/chromeos.c index f396b4b016..4e1e50cc47 100644 --- a/src/mainboard/google/veyron/chromeos.c +++ b/src/mainboard/google/veyron/chromeos.c @@ -23,11 +23,68 @@ #include <ec/google/chromeec/ec_commands.h> #include <string.h> #include <vendorcode/google/chromeos/chromeos.h> +#include <soc/rockchip/rk3288/gpio.h> +#define GPIO_WP (gpio_t){.port = 7, .bank = GPIO_A, .idx = 6} +#define GPIO_LID (gpio_t){.port = 7, .bank = GPIO_B, .idx = 5} +#define GPIO_POWER (gpio_t){.port = 0, .bank = GPIO_A, .idx = 5} +#define GPIO_RECOVERY (gpio_t){.port = 0, .bank = GPIO_B, .idx = 1} + +void setup_chromeos_gpios(void) +{ + gpio_input(GPIO_WP); + gpio_input_pullup(GPIO_LID); + gpio_input_pullup(GPIO_POWER); + gpio_input_pullup(GPIO_RECOVERY); +} void fill_lb_gpios(struct lb_gpios *gpios) { + int count = 0; + + /* Write Protect: active low */ + gpios->gpios[count].port = GPIO_WP.raw; + gpios->gpios[count].polarity = ACTIVE_LOW; + gpios->gpios[count].value = gpio_get_in_value(GPIO_WP); + strncpy((char *)gpios->gpios[count].name, "write protect", + GPIO_MAX_NAME_LENGTH); + count++; + + /* Recovery: active low */ + gpios->gpios[count].port = GPIO_RECOVERY.raw; + 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 = GPIO_LID.raw; + gpios->gpios[count].polarity = ACTIVE_HIGH; + gpios->gpios[count].value = gpio_get_in_value(GPIO_LID); + strncpy((char *)gpios->gpios[count].name, "lid", GPIO_MAX_NAME_LENGTH); + count++; + + /* Power:GPIO active high */ + gpios->gpios[count].port = GPIO_POWER.raw; + gpios->gpios[count].polarity = ACTIVE_HIGH; + gpios->gpios[count].value = gpio_get_in_value(GPIO_POWER); + strncpy((char *)gpios->gpios[count].name, "power", + GPIO_MAX_NAME_LENGTH); + count++; + /* Developer: 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++; + + 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) @@ -37,10 +94,19 @@ int get_developer_mode_switch(void) int get_recovery_mode_switch(void) { - return 0; + uint32_t ec_events; + + /* The GPIO is active low. */ + if (!gpio_get_in_value(GPIO_RECOVERY)) + return 1; + + 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_in_value(GPIO_WP); } + |