Rev 1888 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 1888 | Rev 1923 | ||
|---|---|---|---|
| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2006 Ondrej Palkovsky |
2 | * Copyright (C) 2006 Ondrej Palkovsky |
| 3 | * All rights reserved. |
3 | * All rights reserved. |
| 4 | * |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
7 | * are met: |
| 8 | * |
8 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
| 14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
| 16 | * |
16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | /** @addtogroup genericklog |
29 | /** @addtogroup genericklog |
| 30 | * @{ |
30 | * @{ |
| 31 | */ |
31 | */ |
| 32 | /** @file |
32 | /** @file |
| 33 | */ |
33 | */ |
| 34 | 34 | ||
| 35 | #include <mm/frame.h> |
35 | #include <mm/frame.h> |
| 36 | #include <sysinfo/sysinfo.h> |
36 | #include <sysinfo/sysinfo.h> |
| 37 | #include <console/klog.h> |
37 | #include <console/klog.h> |
| 38 | #include <print.h> |
38 | #include <print.h> |
| - | 39 | #include <ddi/device.h> |
|
| - | 40 | #include <ddi/irq.h> |
|
| 39 | #include <ipc/irq.h> |
41 | #include <ipc/irq.h> |
| 40 | 42 | ||
| 41 | /* Order of frame to be allocated for klog communication */ |
43 | /* Order of frame to be allocated for klog communication */ |
| 42 | #define KLOG_ORDER 0 |
44 | #define KLOG_ORDER 0 |
| 43 | 45 | ||
| 44 | static char *klog; |
46 | static char *klog; |
| 45 | static int klogsize; |
47 | static int klogsize; |
| 46 | static int klogpos; |
48 | static int klogpos; |
| 47 | 49 | ||
| 48 | SPINLOCK_INITIALIZE(klog_lock); |
50 | SPINLOCK_INITIALIZE(klog_lock); |
| 49 | 51 | ||
| - | 52 | static irq_t klog_irq; |
|
| - | 53 | ||
| - | 54 | static irq_ownership_t klog_claim(void); |
|
| - | 55 | ||
| 50 | /** Initialize kernel logging facility |
56 | /** Initialize kernel logging facility |
| 51 | * |
57 | * |
| 52 | * Allocate pages that are to be shared with uspace for console data. |
58 | * Allocate pages that are to be shared with uspace for console data. |
| 53 | * The shared area is a circular buffer. Userspace application may |
59 | * The shared area is a circular buffer. Userspace application may |
| 54 | * be notified on new data with indication of position and size |
60 | * be notified on new data with indication of position and size |
| 55 | * of the data within the circular buffer. |
61 | * of the data within the circular buffer. |
| 56 | */ |
62 | */ |
| 57 | void klog_init(void) |
63 | void klog_init(void) |
| 58 | { |
64 | { |
| 59 | void *faddr; |
65 | void *faddr; |
| 60 | 66 | ||
| 61 | faddr = frame_alloc(KLOG_ORDER, FRAME_ATOMIC); |
67 | faddr = frame_alloc(KLOG_ORDER, FRAME_ATOMIC); |
| 62 | if (!faddr) |
68 | if (!faddr) |
| 63 | panic("Cannot allocate page for klog"); |
69 | panic("Cannot allocate page for klog"); |
| 64 | klog = (char *)PA2KA(faddr); |
70 | klog = (char *)PA2KA(faddr); |
| 65 | 71 | ||
| - | 72 | devno_t devno = device_assign_devno(); |
|
| - | 73 | ||
| 66 | sysinfo_set_item_val("klog.faddr", NULL, (unative_t)faddr); |
74 | sysinfo_set_item_val("klog.faddr", NULL, (unative_t)faddr); |
| 67 | sysinfo_set_item_val("klog.pages", NULL, 1 << KLOG_ORDER); |
75 | sysinfo_set_item_val("klog.pages", NULL, 1 << KLOG_ORDER); |
| - | 76 | sysinfo_set_item_val("klog.devno", NULL, devno); |
|
| - | 77 | sysinfo_set_item_val("klog.inr", NULL, VIRT_INR_KLOG); |
|
| - | 78 | ||
| - | 79 | irq_initialize(&klog_irq); |
|
| - | 80 | klog_irq.devno = devno; |
|
| - | 81 | klog_irq.inr = VIRT_INR_KLOG; |
|
| - | 82 | klog_irq.claim = klog_claim; |
|
| - | 83 | irq_register(&klog_irq); |
|
| 68 | 84 | ||
| 69 | klogsize = PAGE_SIZE << KLOG_ORDER; |
85 | klogsize = PAGE_SIZE << KLOG_ORDER; |
| 70 | klogpos = 0; |
86 | klogpos = 0; |
| 71 | } |
87 | } |
| 72 | 88 | ||
| - | 89 | /** Allways refuse IRQ ownership. |
|
| - | 90 | * |
|
| - | 91 | * This is not a real IRQ, so we always decline. |
|
| - | 92 | * |
|
| - | 93 | * @return Always returns IRQ_DECLINE. |
|
| - | 94 | */ |
|
| - | 95 | irq_ownership_t klog_claim(void) |
|
| - | 96 | { |
|
| - | 97 | return IRQ_DECLINE; |
|
| - | 98 | } |
|
| - | 99 | ||
| 73 | static void klog_vprintf(const char *fmt, va_list args) |
100 | static void klog_vprintf(const char *fmt, va_list args) |
| 74 | { |
101 | { |
| 75 | int ret; |
102 | int ret; |
| 76 | va_list atst; |
103 | va_list atst; |
| 77 | 104 | ||
| 78 | va_copy(atst, args); |
105 | va_copy(atst, args); |
| 79 | spinlock_lock(&klog_lock); |
106 | spinlock_lock(&klog_lock); |
| 80 | 107 | ||
| 81 | ret = vsnprintf(klog+klogpos, klogsize-klogpos, fmt, atst); |
108 | ret = vsnprintf(klog+klogpos, klogsize-klogpos, fmt, atst); |
| 82 | if (ret >= klogsize-klogpos) { |
109 | if (ret >= klogsize-klogpos) { |
| 83 | klogpos = 0; |
110 | klogpos = 0; |
| 84 | if (ret >= klogsize) |
111 | if (ret >= klogsize) |
| 85 | goto out; |
112 | goto out; |
| 86 | } |
113 | } |
| 87 | ipc_irq_send_msg(IPC_IRQ_KLOG, klogpos, ret, 0); |
114 | ipc_irq_send_msg(&klog_irq, klogpos, ret, 0); |
| 88 | klogpos += ret; |
115 | klogpos += ret; |
| 89 | if (klogpos >= klogsize) |
116 | if (klogpos >= klogsize) |
| 90 | klogpos = 0; |
117 | klogpos = 0; |
| 91 | out: |
118 | out: |
| 92 | spinlock_unlock(&klog_lock); |
119 | spinlock_unlock(&klog_lock); |
| 93 | va_end(atst); |
120 | va_end(atst); |
| 94 | } |
121 | } |
| 95 | 122 | ||
| 96 | /** Printf a message to kernel-uspace log */ |
123 | /** Printf a message to kernel-uspace log */ |
| 97 | void klog_printf(const char *fmt, ...) |
124 | void klog_printf(const char *fmt, ...) |
| 98 | { |
125 | { |
| 99 | va_list args; |
126 | va_list args; |
| 100 | 127 | ||
| 101 | va_start(args, fmt); |
128 | va_start(args, fmt); |
| 102 | 129 | ||
| 103 | klog_vprintf(fmt, args); |
130 | klog_vprintf(fmt, args); |
| 104 | 131 | ||
| 105 | va_end(args); |
132 | va_end(args); |
| 106 | } |
133 | } |
| 107 | 134 | ||
| 108 | /** @} |
135 | /** @} |
| 109 | */ |
136 | */ |
| 110 | 137 | ||