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// SPDX-License-Identifier: GPL-2.0+
/*
* Provides code common for host and device side USB.
*
* (C) Copyright 2016
* Texas Instruments Incorporated, <www.ti.com>
*/
#include <common.h>
#include <linux/libfdt.h>
#include <linux/usb/otg.h>
#include <linux/usb/ch9.h>
DECLARE_GLOBAL_DATA_PTR;
static const char *const usb_dr_modes[] = {
[USB_DR_MODE_UNKNOWN] = "",
[USB_DR_MODE_HOST] = "host",
[USB_DR_MODE_PERIPHERAL] = "peripheral",
[USB_DR_MODE_OTG] = "otg",
};
enum usb_dr_mode usb_get_dr_mode(int node)
{
const void *fdt = gd->fdt_blob;
const char *dr_mode;
int i;
dr_mode = fdt_getprop(fdt, node, "dr_mode", NULL);
if (!dr_mode) {
pr_err("usb dr_mode not found\n");
return USB_DR_MODE_UNKNOWN;
}
for (i = 0; i < ARRAY_SIZE(usb_dr_modes); i++)
if (!strcmp(dr_mode, usb_dr_modes[i]))
return i;
return USB_DR_MODE_UNKNOWN;
}
static const char *const speed_names[] = {
[USB_SPEED_UNKNOWN] = "UNKNOWN",
[USB_SPEED_LOW] = "low-speed",
[USB_SPEED_FULL] = "full-speed",
[USB_SPEED_HIGH] = "high-speed",
[USB_SPEED_WIRELESS] = "wireless",
[USB_SPEED_SUPER] = "super-speed",
};
enum usb_device_speed usb_get_maximum_speed(int node)
{
const void *fdt = gd->fdt_blob;
const char *max_speed;
int i;
max_speed = fdt_getprop(fdt, node, "maximum-speed", NULL);
if (!max_speed) {
pr_err("usb maximum-speed not found\n");
return USB_SPEED_UNKNOWN;
}
for (i = 0; i < ARRAY_SIZE(speed_names); i++)
if (!strcmp(max_speed, speed_names[i]))
return i;
return USB_SPEED_UNKNOWN;
}
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