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drivers/wifi: Add generic WiFi driver

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Add generic WiFi driver to support common device operations across
multiple types of WiFi controller.

BUG=None
BRANCH=None
TEST=Boot to ChromeOS. Ensure that the SSDT table contains SAR tables
and wakeup GPE information. Ensure that the SSDT table is same after the
change.

Change-Id: Ica5edf95a37c8ed60f7e159d94fd58af5d41c0ef
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33155
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Karthikeyan Ramasubramanian
2019-05-29 15:09:42 -06:00
committed by Martin Roth
parent 328c8bbd23
commit fd5d788f5e
7 changed files with 367 additions and 252 deletions
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51
src/drivers/wifi/generic_wifi.h Normal file
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/*
* This file is part of the coreboot project.
*
* Copyright 2019 Google LLC
*
* 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.
*/
#ifndef _GENERIC_WIFI_H_
#define _GENERIC_WIFI_H_
/**
* struct generic_wifi_config - Data structure to contain common wifi config
* @wake: Wake pin for ACPI _PRW
* @maxsleep: Maximum sleep state to wake from
*/
struct generic_wifi_config {
unsigned int wake;
unsigned int maxsleep;
};
/**
* wifi_fill_ssdt() - Fill ACPI SSDT table for WiFi controller
* @dev: Device structure corresponding to WiFi controller.
* @config: Common wifi config required to fill ACPI SSDT table.
*
* This function implements common device operation to help fill ACPI SSDT
* table for WiFi controller.
*/
void generic_wifi_fill_ssdt(struct device *dev,
const struct generic_wifi_config *config);
/**
* wifi_acpi_name() - Get ACPI name for WiFi controller
* @dev: Device structure corresponding to WiFi controller.
*
* This function implements common device operation to get the ACPI name for
* WiFi controller.
*
* Return: string representing the ACPI name for WiFi controller.
*/
const char *generic_wifi_acpi_name(const struct device *dev);
#endif /* _GENERIC_WIFI_H_ */