diff options
| -rw-r--r-- | src/soc/intel/jasperlake/acpi.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/soc/intel/jasperlake/acpi.c b/src/soc/intel/jasperlake/acpi.c index 4acd8a6131..b390968708 100644 --- a/src/soc/intel/jasperlake/acpi.c +++ b/src/soc/intel/jasperlake/acpi.c @@ -330,3 +330,40 @@ int soc_madt_sci_irq_polarity(int sci) { return MP_IRQ_POLARITY_HIGH; } + +static int acpigen_soc_gpio_op(const char *op, unsigned int gpio_num) +{ + /* op (gpio_num) */ + acpigen_emit_namestring(op); + acpigen_write_integer(gpio_num); + return 0; +} + +static int acpigen_soc_get_gpio_state(const char *op, unsigned int gpio_num) +{ + /* Store (op (gpio_num), Local0) */ + acpigen_write_store(); + acpigen_soc_gpio_op(op, gpio_num); + acpigen_emit_byte(LOCAL0_OP); + return 0; +} + +int acpigen_soc_read_rx_gpio(unsigned int gpio_num) +{ + return acpigen_soc_get_gpio_state("\\_SB.PCI0.GRXS", gpio_num); +} + +int acpigen_soc_get_tx_gpio(unsigned int gpio_num) +{ + return acpigen_soc_get_gpio_state("\\_SB.PCI0.GTXS", gpio_num); +} + +int acpigen_soc_set_tx_gpio(unsigned int gpio_num) +{ + return acpigen_soc_gpio_op("\\_SB.PCI0.STXS", gpio_num); +} + +int acpigen_soc_clear_tx_gpio(unsigned int gpio_num) +{ + return acpigen_soc_gpio_op("\\_SB.PCI0.CTXS", gpio_num); +} |