src/ec/lenovo/h8/bluetooth.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <southbridge/intel/common/gpio.h>
   4 #include <console/console.h>
   5 #include <device/device.h>
   6 #include <ec/acpi/ec.h>
   7 #include <option.h>
   8 #include <types.h>
   9
  10 #include "h8.h"
  11 #include "chip.h"
  12
  13 /*
  14  * Controls BDC (Bluetooth daughter card) power.
  15  */
  16 void h8_bluetooth_enable(int on)
  17 {
  18         if (on)
  19                 ec_set_bit(0x3a, 4);
  20         else
  21                 ec_clr_bit(0x3a, 4);
  22 }
  23
  24 /*
  25  * Detect BDC on supported MBs.
  26  */
  27 bool h8_has_bdc(const struct device *dev)
  28 {
  29         struct ec_lenovo_h8_config *conf = dev->chip_info;
  30
  31         if (!conf->has_bdc_detection) {
  32                 printk(BIOS_INFO, "H8: BDC detection not implemented. "
  33                                   "Assuming BDC installed\n");
  34                 return true;
  35         }
  36
  37         if (get_gpio(conf->bdc_gpio_num) == conf->bdc_gpio_lvl) {
  38                 printk(BIOS_INFO, "H8: BDC installed\n");
  39                 return true;
  40         }
  41
  42         printk(BIOS_INFO, "H8: BDC not installed\n");
  43         return false;
  44 }
  45
  46 /*
  47  * Return BDC NVRAM setting.
  48  */
  49 bool h8_bluetooth_nv_enable(void)
  50 {
  51         return get_uint_option("bluetooth", true);
  52 }