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grub2/0214-Fix-USB-devices-not-being-detected-when-requested.patch
Peter Jones f74b50e380 Rebase to upstream, fix a pile of bugs. The usual. 
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-06-12 15:37:08 -04:00

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From 1d79a30acc9b9cf67c9d669a2a57b3ce26683ff6 Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Tue, 19 Mar 2013 20:35:21 +0100
Subject: [PATCH 214/482] Fix USB devices not being detected when
requested due to delayed attach.
---
ChangeLog | 5 +++++
grub-core/bus/usb/usbhub.c | 29 ++++++++++++++++++++++++-----
grub-core/commands/keystatus.c | 2 +-
grub-core/commands/terminal.c | 12 ++++++++++--
grub-core/commands/usbtest.c | 2 +-
grub-core/disk/usbms.c | 5 +++--
grub-core/kern/term.c | 4 ++--
include/grub/term.h | 2 +-
include/grub/usb.h | 2 +-
9 files changed, 48 insertions(+), 15 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 94dd5bb..725fbe2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
2013-03-19 Vladimir Serbinenko <phcoder@gmail.com>
+ Fix USB devices not being detected when requested
+ due to delayed attach.
+
+2013-03-19 Vladimir Serbinenko <phcoder@gmail.com>
+
Implement boot time analysis framework.
2013-03-19 Vladimir Serbinenko <phcoder@gmail.com>
diff --git a/grub-core/bus/usb/usbhub.c b/grub-core/bus/usb/usbhub.c
index f95a567..253e49f 100644
--- a/grub-core/bus/usb/usbhub.c
+++ b/grub-core/bus/usb/usbhub.c
@@ -29,6 +29,7 @@
static struct grub_usb_device *grub_usb_devs[GRUB_USBHUB_MAX_DEVICES];
static int rescan = 0;
+static int npending = 0;
struct grub_usb_hub
{
@@ -227,21 +228,33 @@ attach_root_port (struct grub_usb_hub *hub, int portno,
if (current_speed == GRUB_USB_SPEED_NONE)
i = 0;
}
+
+ grub_boot_time ("After the stable power wait portno=%d", portno);
+
grub_dprintf ("usb", "total=%d\n", total);
if (total >= 2000)
- return;
+ {
+ grub_boot_time ("Root port timeout");
+ return;
+ }
+
+ grub_boot_time ("After detect_dev");
/* Enable the port. */
err = hub->controller->dev->portstatus (hub->controller, portno, 1);
if (err)
return;
hub->controller->dev->pending_reset = grub_get_time_ms () + 5000;
+ npending++;
grub_millisleep (10);
+ grub_boot_time ("Port enabled");
+
/* Enable the port and create a device. */
dev = grub_usb_hub_add_dev (hub->controller, speed, portno, 0);
hub->controller->dev->pending_reset = 0;
+ npending--;
if (! dev)
return;
@@ -475,6 +488,7 @@ poll_nonroot_hub (grub_usb_device_t dev)
* anywhere on the same OHCI controller until
* we will finish addressing of reseted device ! */
dev->controller.dev->pending_reset = grub_get_time_ms () + 5000;
+ npending++;
return;
}
}
@@ -510,7 +524,11 @@ poll_nonroot_hub (grub_usb_device_t dev)
/* Add the device and assign a device address to it. */
next_dev = grub_usb_hub_add_dev (&dev->controller, speed, i, dev->addr);
- dev->controller.dev->pending_reset = 0;
+ if (dev->controller.dev->pending_reset)
+ {
+ dev->controller.dev->pending_reset = 0;
+ npending--;
+ }
if (! next_dev)
continue;
@@ -525,7 +543,7 @@ poll_nonroot_hub (grub_usb_device_t dev)
}
void
-grub_usb_poll_devices (void)
+grub_usb_poll_devices (int wait_for_completion)
{
struct grub_usb_hub *hub;
int i;
@@ -539,7 +557,7 @@ grub_usb_poll_devices (void)
grub_usb_speed_t speed = GRUB_USB_SPEED_NONE;
int changed = 0;
- if (!hub->controller->dev->pending_reset)
+ if (hub->controller->dev->pending_reset)
{
/* Check for possible timeout */
if (grub_get_time_ms () > hub->controller->dev->pending_reset)
@@ -547,6 +565,7 @@ grub_usb_poll_devices (void)
/* Something went wrong, reset device was not
* addressed properly, timeout happened */
hub->controller->dev->pending_reset = 0;
+ npending--;
speed = hub->controller->dev->detect_dev (hub->controller,
i, &changed);
}
@@ -573,7 +592,7 @@ grub_usb_poll_devices (void)
if (dev && dev->descdev.class == 0x09)
poll_nonroot_hub (dev);
}
- if (!rescan)
+ if (!(rescan || (npending && wait_for_completion)))
break;
grub_millisleep (50);
}
diff --git a/grub-core/commands/keystatus.c b/grub-core/commands/keystatus.c
index 0925c6a..460cf4e 100644
--- a/grub-core/commands/keystatus.c
+++ b/grub-core/commands/keystatus.c
@@ -42,7 +42,7 @@ grub_getkeystatus (void)
grub_term_input_t term;
if (grub_term_poll_usb)
- grub_term_poll_usb ();
+ grub_term_poll_usb (0);
FOR_ACTIVE_TERM_INPUTS(term)
{
diff --git a/grub-core/commands/terminal.c b/grub-core/commands/terminal.c
index 425a411..3002186 100644
--- a/grub-core/commands/terminal.c
+++ b/grub-core/commands/terminal.c
@@ -108,9 +108,9 @@ handle_command (int argc, char **args, struct abstract_terminal **enabled,
if (term)
break;
if (again)
- return grub_error (GRUB_ERR_BAD_ARGUMENT,
+ return grub_error (GRUB_ERR_BAD_ARGUMENT,
N_("terminal `%s' isn't found"),
- args[i]);
+ args[i]);
for (aut = autoloads; aut; aut = aut->next)
if (grub_strcmp (args[i], aut->name) == 0
|| (grub_strcmp (args[i], "ofconsole") == 0
@@ -126,6 +126,14 @@ handle_command (int argc, char **args, struct abstract_terminal **enabled,
grub_errno = GRUB_ERR_NONE;
break;
}
+ if (grub_memcmp (args[i], "serial_usb",
+ sizeof ("serial_usb") - 1) == 0
+ && grub_term_poll_usb)
+ {
+ grub_term_poll_usb (1);
+ again = 1;
+ continue;
+ }
if (!aut)
return grub_error (GRUB_ERR_BAD_ARGUMENT,
N_("terminal `%s' isn't found"),
diff --git a/grub-core/commands/usbtest.c b/grub-core/commands/usbtest.c
index af35b8c..01cdca9 100644
--- a/grub-core/commands/usbtest.c
+++ b/grub-core/commands/usbtest.c
@@ -196,7 +196,7 @@ grub_cmd_usbtest (grub_command_t cmd __attribute__ ((unused)),
int argc __attribute__ ((unused)),
char **args __attribute__ ((unused)))
{
- grub_usb_poll_devices ();
+ grub_usb_poll_devices (1);
grub_printf ("USB devices:\n\n");
grub_usb_iterate (usb_iterate, NULL);
diff --git a/grub-core/disk/usbms.c b/grub-core/disk/usbms.c
index 2cfc537..da01be3 100644
--- a/grub-core/disk/usbms.c
+++ b/grub-core/disk/usbms.c
@@ -277,7 +277,7 @@ grub_usbms_iterate (grub_scsi_dev_iterate_hook_t hook, void *hook_data,
if (pull != GRUB_DISK_PULL_NONE)
return 0;
- grub_usb_poll_devices ();
+ grub_usb_poll_devices (1);
for (i = 0; i < ARRAY_SIZE (grub_usbms_devices); i++)
if (grub_usbms_devices[i])
@@ -611,7 +611,8 @@ grub_usbms_open (int id, int devnum, struct grub_scsi *scsi)
return grub_error (GRUB_ERR_UNKNOWN_DEVICE,
"not USB Mass Storage device");
- grub_usb_poll_devices ();
+ if (!grub_usbms_devices[devnum])
+ grub_usb_poll_devices (1);
if (!grub_usbms_devices[devnum])
return grub_error (GRUB_ERR_UNKNOWN_DEVICE,
diff --git a/grub-core/kern/term.c b/grub-core/kern/term.c
index 44ada25..66c5971 100644
--- a/grub-core/kern/term.c
+++ b/grub-core/kern/term.c
@@ -32,7 +32,7 @@ struct grub_term_input *grub_term_inputs;
grub_uint8_t grub_term_normal_color = GRUB_TERM_DEFAULT_NORMAL_COLOR;
grub_uint8_t grub_term_highlight_color = GRUB_TERM_DEFAULT_HIGHLIGHT_COLOR;
-void (*grub_term_poll_usb) (void) = NULL;
+void (*grub_term_poll_usb) (int wait_for_completion) = NULL;
void (*grub_net_poll_cards_idle) (void) = NULL;
/* Put a Unicode character. */
@@ -90,7 +90,7 @@ grub_getkey_noblock (void)
grub_term_input_t term;
if (grub_term_poll_usb)
- grub_term_poll_usb ();
+ grub_term_poll_usb (0);
if (grub_net_poll_cards_idle)
grub_net_poll_cards_idle ();
diff --git a/include/grub/term.h b/include/grub/term.h
index 84f5766..655a5e3 100644
--- a/include/grub/term.h
+++ b/include/grub/term.h
@@ -467,7 +467,7 @@ grub_print_spaces (struct grub_term_output *term, int number_spaces)
grub_putcode (' ', term);
}
-extern void (*EXPORT_VAR (grub_term_poll_usb)) (void);
+extern void (*EXPORT_VAR (grub_term_poll_usb)) (int wait_for_completion);
#define GRUB_TERM_REPEAT_PRE_INTERVAL 400
#define GRUB_TERM_REPEAT_INTERVAL 50
diff --git a/include/grub/usb.h b/include/grub/usb.h
index 32f0ecd..7164dd5 100644
--- a/include/grub/usb.h
+++ b/include/grub/usb.h
@@ -291,7 +291,7 @@ struct grub_usb_attach_desc
void grub_usb_register_attach_hook_class (struct grub_usb_attach_desc *desc);
void grub_usb_unregister_attach_hook_class (struct grub_usb_attach_desc *desc);
-void grub_usb_poll_devices (void);
+void grub_usb_poll_devices (int wait_for_completion);
void grub_usb_device_attach (grub_usb_device_t dev);
grub_usb_err_t
--
1.8.2.1
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