[intel] Forcibly skip PHY reset on some models
[ipxe.git] / src / core / monojob.c
1 /*
2 * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17 * 02110-1301, USA.
18 *
19 * You can also choose to distribute this program under the terms of
20 * the Unmodified Binary Distribution Licence (as given in the file
21 * COPYING.UBDL), provided that you have satisfied its requirements.
22 */
23
24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
25
26 #include <string.h>
27 #include <stdio.h>
28 #include <errno.h>
29 #include <ipxe/process.h>
30 #include <ipxe/console.h>
31 #include <ipxe/keys.h>
32 #include <ipxe/job.h>
33 #include <ipxe/monojob.h>
34 #include <ipxe/timer.h>
35
36 /** @file
37 *
38 * Single foreground job
39 *
40 */
41
42 static int monojob_rc;
43
44 static void monojob_close ( struct interface *intf, int rc ) {
45 monojob_rc = rc;
46 intf_restart ( intf, rc );
47 }
48
49 static struct interface_operation monojob_intf_op[] = {
50 INTF_OP ( intf_close, struct interface *, monojob_close ),
51 };
52
53 static struct interface_descriptor monojob_intf_desc =
54 INTF_DESC_PURE ( monojob_intf_op );
55
56 struct interface monojob = INTF_INIT ( monojob_intf_desc );
57
58 /**
59 * Wait for single foreground job to complete
60 *
61 * @v string Job description to display, or NULL to be silent
62 * @v timeout Timeout period, in ticks (0=indefinite)
63 * @ret rc Job final status code
64 */
65 int monojob_wait ( const char *string, unsigned long timeout ) {
66 struct job_progress progress;
67 unsigned long last_keycheck;
68 unsigned long last_progress;
69 unsigned long last_display;
70 unsigned long now;
71 unsigned long elapsed;
72 unsigned long completed = 0;
73 unsigned long scaled_completed;
74 unsigned long scaled_total;
75 unsigned int percentage;
76 int shown_percentage = 0;
77 int ongoing_rc;
78 int key;
79 int rc;
80
81 if ( string )
82 printf ( "%s...", string );
83 monojob_rc = -EINPROGRESS;
84 last_keycheck = last_progress = last_display = currticks();
85 while ( monojob_rc == -EINPROGRESS ) {
86
87 /* Allow job to progress */
88 step();
89 now = currticks();
90
91 /* Check for keypresses. This can be time-consuming,
92 * so check only once per clock tick.
93 */
94 elapsed = ( now - last_keycheck );
95 if ( elapsed ) {
96 if ( iskey() ) {
97 key = getchar();
98 if ( key == CTRL_C ) {
99 monojob_rc = -ECANCELED;
100 break;
101 }
102 }
103 last_keycheck = now;
104 }
105
106 /* Monitor progress */
107 ongoing_rc = job_progress ( &monojob, &progress );
108
109 /* Reset timeout if progress has been made */
110 if ( completed != progress.completed )
111 last_progress = now;
112 completed = progress.completed;
113
114 /* Check for timeout, if applicable */
115 elapsed = ( now - last_progress );
116 if ( timeout && ( elapsed >= timeout ) ) {
117 monojob_rc = ( ongoing_rc ? ongoing_rc : -ETIMEDOUT );
118 break;
119 }
120
121 /* Display progress, if applicable */
122 elapsed = ( now - last_display );
123 if ( string && ( elapsed >= TICKS_PER_SEC ) ) {
124 if ( shown_percentage )
125 printf ( "\b\b\b\b \b\b\b\b" );
126 /* Normalise progress figures to avoid overflow */
127 scaled_completed = ( progress.completed / 128 );
128 scaled_total = ( progress.total / 128 );
129 if ( scaled_total ) {
130 percentage = ( ( 100 * scaled_completed ) /
131 scaled_total );
132 printf ( "%3d%%", percentage );
133 shown_percentage = 1;
134 } else {
135 printf ( "." );
136 shown_percentage = 0;
137 }
138 last_display = now;
139 }
140 }
141 rc = monojob_rc;
142 monojob_close ( &monojob, rc );
143
144 if ( shown_percentage )
145 printf ( "\b\b\b\b \b\b\b\b" );
146
147 if ( string ) {
148 if ( rc ) {
149 printf ( " %s\n", strerror ( rc ) );
150 } else {
151 printf ( " ok\n" );
152 }
153 }
154
155 return rc;
156 }