+// SPDX-License-Identifier: GPL-2.0+
/*
* Most of this source has been derived from the Linux USB
* project:
*
* Adapted for U-Boot:
* (C) Copyright 2001 Denis Peter, MPL AG Switzerland
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
/****************************************************************************
#endif
#include <asm/unaligned.h>
-DECLARE_GLOBAL_DATA_PTR;
-
#include <usb.h>
#define USB_BUFSIZ 512
static LIST_HEAD(usb_scan_list);
-__weak void usb_hub_reset_devices(int port)
+__weak void usb_hub_reset_devices(struct usb_hub_device *hub, int port)
{
return;
}
return hdev->descriptor.bDeviceProtocol == 3;
}
-#ifdef CONFIG_DM_USB
+#if CONFIG_IS_ENABLED(DM_USB)
bool usb_hub_is_root_hub(struct udevice *hub)
{
if (device_get_uclass_id(hub->parent) != UCLASS_USB_HUB)
USB_REQ_GET_STATUS, USB_DIR_IN | USB_RT_PORT, 0, port,
data, sizeof(struct usb_port_status), USB_CNTL_TIMEOUT);
-#ifdef CONFIG_DM_USB
+#if CONFIG_IS_ENABLED(DM_USB)
if (ret < 0)
return ret;
* but allow this time to be increased via env variable as some
* devices break the spec and require longer warm-up times
*/
- env = getenv("usb_pgood_delay");
+ env = env_get("usb_pgood_delay");
if (env)
pgood_delay = max(pgood_delay,
(unsigned)simple_strtol(env, NULL, 0));
max(100, (int)pgood_delay) + 1000);
}
-#ifndef CONFIG_DM_USB
+#if !CONFIG_IS_ENABLED(DM_USB)
static struct usb_hub_device hub_dev[USB_MAX_HUB];
static int usb_hub_index;
#define MAX_TRIES 5
-static inline char *portspeed(int portstatus)
+static inline const char *portspeed(int portstatus)
{
- char *speed_str;
-
switch (portstatus & USB_PORT_STAT_SPEED_MASK) {
case USB_PORT_STAT_SUPER_SPEED:
- speed_str = "5 Gb/s";
- break;
+ return "5 Gb/s";
case USB_PORT_STAT_HIGH_SPEED:
- speed_str = "480 Mb/s";
- break;
+ return "480 Mb/s";
case USB_PORT_STAT_LOW_SPEED:
- speed_str = "1.5 Mb/s";
- break;
+ return "1.5 Mb/s";
default:
- speed_str = "12 Mb/s";
- break;
+ return "12 Mb/s";
}
-
- return speed_str;
}
/**
unsigned short portstatus, portchange;
int delay = HUB_SHORT_RESET_TIME; /* start with short reset delay */
-#ifdef CONFIG_DM_USB
+#if CONFIG_IS_ENABLED(DM_USB)
debug("%s: resetting '%s' port %d...\n", __func__, dev->dev->name,
port + 1);
#else
break;
}
-#ifdef CONFIG_DM_USB
+#if CONFIG_IS_ENABLED(DM_USB)
struct udevice *child;
ret = usb_scan_device(dev->dev, port + 1, speed, &child);
return 0;
}
+ if (portchange & USB_PORT_STAT_C_RESET) {
+ debug("port %d reset change\n", i + 1);
+ usb_clear_port_feature(dev, i + 1, USB_PORT_FEAT_C_RESET);
+ }
+
+ if ((portchange & USB_SS_PORT_STAT_C_BH_RESET) &&
+ usb_hub_is_superspeed(dev)) {
+ debug("port %d BH reset change\n", i + 1);
+ usb_clear_port_feature(dev, i + 1, USB_SS_PORT_FEAT_C_BH_RESET);
+ }
+
/* A new USB device is ready at this point */
debug("devnum=%d port=%d: USB dev found\n", dev->devnum, i + 1);
hub->overcurrent_count[i]);
}
- if (portchange & USB_PORT_STAT_C_RESET) {
- debug("port %d reset change\n", i + 1);
- usb_clear_port_feature(dev, i + 1, USB_PORT_FEAT_C_RESET);
- }
-
/*
* We're done with this device, so let's remove this device from
* scanning list
{
struct usb_hub_device *hub;
-#ifndef CONFIG_DM_USB
+#if !CONFIG_IS_ENABLED(DM_USB)
/* "allocate" Hub device */
hub = usb_hub_allocate();
#else
short hubCharacteristics;
struct usb_hub_descriptor *descriptor;
struct usb_hub_device *hub;
- __maybe_unused struct usb_hub_status *hubsts;
+ struct usb_hub_status *hubsts;
int ret;
hub = usb_get_hub_device(dev);
break;
}
+ switch (dev->descriptor.bDeviceProtocol) {
+ case USB_HUB_PR_FS:
+ break;
+ case USB_HUB_PR_HS_SINGLE_TT:
+ debug("Single TT\n");
+ break;
+ case USB_HUB_PR_HS_MULTI_TT:
+ ret = usb_set_interface(dev, 0, 1);
+ if (ret == 0) {
+ debug("TT per port\n");
+ hub->tt.multi = true;
+ } else {
+ debug("Using single TT (err %d)\n", ret);
+ }
+ break;
+ case USB_HUB_PR_SS:
+ /* USB 3.0 hubs don't have a TT */
+ break;
+ default:
+ debug("Unrecognized hub protocol %d\n",
+ dev->descriptor.bDeviceProtocol);
+ break;
+ }
+
+ /* Note 8 FS bit times == (8 bits / 12000000 bps) ~= 666ns */
+ switch (hubCharacteristics & HUB_CHAR_TTTT) {
+ case HUB_TTTT_8_BITS:
+ if (dev->descriptor.bDeviceProtocol != 0) {
+ hub->tt.think_time = 666;
+ debug("TT requires at most %d FS bit times (%d ns)\n",
+ 8, hub->tt.think_time);
+ }
+ break;
+ case HUB_TTTT_16_BITS:
+ hub->tt.think_time = 666 * 2;
+ debug("TT requires at most %d FS bit times (%d ns)\n",
+ 16, hub->tt.think_time);
+ break;
+ case HUB_TTTT_24_BITS:
+ hub->tt.think_time = 666 * 3;
+ debug("TT requires at most %d FS bit times (%d ns)\n",
+ 24, hub->tt.think_time);
+ break;
+ case HUB_TTTT_32_BITS:
+ hub->tt.think_time = 666 * 4;
+ debug("TT requires at most %d FS bit times (%d ns)\n",
+ 32, hub->tt.think_time);
+ break;
+ }
+
debug("power on to power good time: %dms\n",
descriptor->bPwrOn2PwrGood * 2);
debug("hub controller current requirement: %dmA\n",
return ret;
}
-#ifdef DEBUG
hubsts = (struct usb_hub_status *)buffer;
-#endif
debug("get_hub_status returned status %X, change %X\n",
le16_to_cpu(hubsts->wHubStatus),
(le16_to_cpu(hubsts->wHubStatus) & HUB_STATUS_OVERCURRENT) ? \
"" : "no ");
-#ifdef CONFIG_DM_USB
+#if CONFIG_IS_ENABLED(DM_USB)
+ /*
+ * Update USB host controller's internal representation of this hub
+ * after the hub descriptor is fetched.
+ */
+ ret = usb_update_hub_device(dev);
+ if (ret < 0 && ret != -ENOSYS) {
+ debug("%s: failed to update hub device for HCD (%x)\n",
+ __func__, ret);
+ return ret;
+ }
+
/*
* A maximum of seven tiers are allowed in a USB topology, and the
* root hub occupies the first tier. The last tier ends with a normal
* should occur in the board file of the device.
*/
for (i = 0; i < dev->maxchild; i++)
- usb_hub_reset_devices(i + 1);
+ usb_hub_reset_devices(hub, i + 1);
/*
* Only add the connected USB devices, including potential hubs,
return ret;
}
-#ifdef CONFIG_DM_USB
+#if CONFIG_IS_ENABLED(DM_USB)
int usb_hub_scan(struct udevice *hub)
{
struct usb_device *udev = dev_get_parent_priv(hub);
projects / project / bcm63xx / u-boot.git / blobdiff