diff options
Diffstat (limited to 'src/ec/lenovo/h8/wwan.c')
-rw-r--r-- | src/ec/lenovo/h8/wwan.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/ec/lenovo/h8/wwan.c b/src/ec/lenovo/h8/wwan.c new file mode 100644 index 0000000000..cf3c8f7cf0 --- /dev/null +++ b/src/ec/lenovo/h8/wwan.c @@ -0,0 +1,67 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2017 Patrick Rudolph <siro@das-labor.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <southbridge/intel/common/gpio.h> +#include <console/console.h> +#include <device/device.h> +#include <ec/acpi/ec.h> +#include <option.h> + +#include "h8.h" +#include "chip.h" + +/* Controls radio-off pin in WWAN MiniPCIe slot. */ +void h8_wwan_enable(int on) +{ + if (on) + ec_set_bit(0x3a, 6); + else + ec_clr_bit(0x3a, 6); +} + +/* + * Detect WWAN on supported MBs. + */ +bool h8_has_wwan(struct device *dev) +{ + struct ec_lenovo_h8_config *conf = dev->chip_info; + + if (!conf->has_wwan_detection) { + printk(BIOS_INFO, "H8: WWAN detection not implemented. " + "Assuming WWAN installed\n"); + return true; + } + + if (get_gpio(conf->wwan_gpio_num) == conf->wwan_gpio_lvl) { + printk(BIOS_INFO, "H8: WWAN installed\n"); + return true; + } + + printk(BIOS_INFO, "H8: WWAN not installed\n"); + return false; +} + +/* + * Return WWAN NVRAM setting. + */ +bool h8_wwan_nv_enable(void) +{ + u8 val; + + if (get_option(&val, "wwan") != CB_SUCCESS) + return true; + + return val; +} |