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1 | /* |
1 | /* |
2 | * Copyright (c) 2005 Ondrej Palkovsky |
2 | * Copyright (c) 2005 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 mips32 |
29 | /** @addtogroup mips32 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | */ |
33 | */ |
34 | 34 | ||
35 | #include <interrupt.h> |
35 | #include <interrupt.h> |
- | 36 | #include <ipc/irq.h> |
|
36 | #include <console/chardev.h> |
37 | #include <console/chardev.h> |
37 | #include <arch/drivers/msim.h> |
38 | #include <arch/drivers/msim.h> |
38 | #include <arch/cp0.h> |
39 | #include <arch/cp0.h> |
39 | #include <console/console.h> |
40 | #include <console/console.h> |
40 | #include <ddi/irq.h> |
- | |
41 | #include <sysinfo/sysinfo.h> |
41 | #include <sysinfo/sysinfo.h> |
42 | 42 | ||
43 | /** Address of devices. */ |
43 | /** Address of devices. */ |
44 | #define MSIM_VIDEORAM 0xB0000000 |
44 | #define MSIM_VIDEORAM 0xB0000000 |
45 | #define MSIM_KBD_ADDRESS 0xB0000000 |
45 | #define MSIM_KBD_ADDRESS 0xB0000000 |
46 | #define MSIM_KBD_IRQ 2 |
46 | #define MSIM_KBD_IRQ 2 |
47 | 47 | ||
48 | static chardev_t console; |
48 | static chardev_t console; |
49 | static irq_t msim_irq; |
49 | static irq_t msim_irq; |
50 | 50 | ||
51 | static void msim_write(chardev_t *dev, const char ch); |
51 | static void msim_write(chardev_t *dev, const char ch); |
52 | static void msim_enable(chardev_t *dev); |
52 | static void msim_enable(chardev_t *dev); |
53 | static void msim_disable(chardev_t *dev); |
53 | static void msim_disable(chardev_t *dev); |
54 | static char msim_do_read(chardev_t *dev); |
54 | static char msim_do_read(chardev_t *dev); |
55 | 55 | ||
56 | static chardev_operations_t msim_ops = { |
56 | static chardev_operations_t msim_ops = { |
57 | .resume = msim_enable, |
57 | .resume = msim_enable, |
58 | .suspend = msim_disable, |
58 | .suspend = msim_disable, |
59 | .write = msim_write, |
59 | .write = msim_write, |
60 | .read = msim_do_read, |
60 | .read = msim_do_read, |
61 | }; |
61 | }; |
62 | 62 | ||
63 | /** Putchar that works with MSIM & gxemul */ |
63 | /** Putchar that works with MSIM & gxemul */ |
64 | void msim_write(chardev_t *dev, const char ch) |
64 | void msim_write(chardev_t *dev, const char ch) |
65 | { |
65 | { |
66 | *((char *) MSIM_VIDEORAM) = ch; |
66 | *((char *) MSIM_VIDEORAM) = ch; |
67 | } |
67 | } |
68 | 68 | ||
69 | /* Called from getc(). */ |
69 | /* Called from getc(). */ |
70 | void msim_enable(chardev_t *dev) |
70 | void msim_enable(chardev_t *dev) |
71 | { |
71 | { |
72 | cp0_unmask_int(MSIM_KBD_IRQ); |
72 | cp0_unmask_int(MSIM_KBD_IRQ); |
73 | } |
73 | } |
74 | 74 | ||
75 | /* Called from getc(). */ |
75 | /* Called from getc(). */ |
76 | void msim_disable(chardev_t *dev) |
76 | void msim_disable(chardev_t *dev) |
77 | { |
77 | { |
78 | cp0_mask_int(MSIM_KBD_IRQ); |
78 | cp0_mask_int(MSIM_KBD_IRQ); |
79 | } |
79 | } |
80 | 80 | ||
81 | #include <print.h> |
81 | #include <print.h> |
82 | /** Read character using polling, assume interrupts disabled */ |
82 | /** Read character using polling, assume interrupts disabled */ |
83 | static char msim_do_read(chardev_t *dev) |
83 | static char msim_do_read(chardev_t *dev) |
84 | { |
84 | { |
85 | char ch; |
85 | char ch; |
86 | 86 | ||
87 | while (1) { |
87 | while (1) { |
88 | ch = *((volatile char *) MSIM_KBD_ADDRESS); |
88 | ch = *((volatile char *) MSIM_KBD_ADDRESS); |
89 | if (ch) { |
89 | if (ch) { |
90 | if (ch == '\r') |
90 | if (ch == '\r') |
91 | return '\n'; |
91 | return '\n'; |
92 | if (ch == 0x7f) |
92 | if (ch == 0x7f) |
93 | return '\b'; |
93 | return '\b'; |
94 | return ch; |
94 | return ch; |
95 | } |
95 | } |
96 | } |
96 | } |
97 | } |
97 | } |
98 | 98 | ||
99 | /** Process keyboard interrupt. */ |
99 | /** Process keyboard interrupt. */ |
100 | static void msim_irq_handler(irq_t *irq, void *arg, ...) |
100 | static void msim_irq_handler(irq_t *irq, void *arg, ...) |
101 | { |
101 | { |
102 | if ((irq->notif_cfg.notify) && (irq->notif_cfg.answerbox)) |
102 | if ((irq->notif_cfg.notify) && (irq->notif_cfg.answerbox)) |
103 | ipc_irq_send_notif(irq); |
103 | ipc_irq_send_notif(irq); |
104 | else { |
104 | else { |
105 | char ch = 0; |
105 | char ch = 0; |
106 | 106 | ||
107 | ch = *((char *) MSIM_KBD_ADDRESS); |
107 | ch = *((char *) MSIM_KBD_ADDRESS); |
108 | if (ch =='\r') |
108 | if (ch =='\r') |
109 | ch = '\n'; |
109 | ch = '\n'; |
110 | if (ch == 0x7f) |
110 | if (ch == 0x7f) |
111 | ch = '\b'; |
111 | ch = '\b'; |
112 | chardev_push_character(&console, ch); |
112 | chardev_push_character(&console, ch); |
113 | } |
113 | } |
114 | } |
114 | } |
115 | 115 | ||
116 | static irq_ownership_t msim_claim(void) |
116 | static irq_ownership_t msim_claim(void) |
117 | { |
117 | { |
118 | return IRQ_ACCEPT; |
118 | return IRQ_ACCEPT; |
119 | } |
119 | } |
120 | 120 | ||
121 | void msim_kbd_grab(void) |
121 | void msim_kbd_grab(void) |
122 | { |
122 | { |
123 | ipl_t ipl = interrupts_disable(); |
123 | ipl_t ipl = interrupts_disable(); |
124 | spinlock_lock(&msim_irq.lock); |
124 | spinlock_lock(&msim_irq.lock); |
125 | msim_irq.notif_cfg.notify = false; |
125 | msim_irq.notif_cfg.notify = false; |
126 | spinlock_unlock(&msim_irq.lock); |
126 | spinlock_unlock(&msim_irq.lock); |
127 | interrupts_restore(ipl); |
127 | interrupts_restore(ipl); |
128 | } |
128 | } |
129 | 129 | ||
130 | void msim_kbd_release(void) |
130 | void msim_kbd_release(void) |
131 | { |
131 | { |
132 | ipl_t ipl = interrupts_disable(); |
132 | ipl_t ipl = interrupts_disable(); |
133 | spinlock_lock(&msim_irq.lock); |
133 | spinlock_lock(&msim_irq.lock); |
134 | if (msim_irq.notif_cfg.answerbox) |
134 | if (msim_irq.notif_cfg.answerbox) |
135 | msim_irq.notif_cfg.notify = true; |
135 | msim_irq.notif_cfg.notify = true; |
136 | spinlock_unlock(&msim_irq.lock); |
136 | spinlock_unlock(&msim_irq.lock); |
137 | interrupts_restore(ipl); |
137 | interrupts_restore(ipl); |
138 | } |
138 | } |
139 | 139 | ||
140 | 140 | ||
141 | /* Return console object representing msim console */ |
141 | /* Return console object representing msim console */ |
142 | void msim_console(devno_t devno) |
142 | void msim_console(devno_t devno) |
143 | { |
143 | { |
144 | chardev_initialize("msim_console", &console, &msim_ops); |
144 | chardev_initialize("msim_console", &console, &msim_ops); |
145 | stdin = &console; |
145 | stdin = &console; |
146 | stdout = &console; |
146 | stdout = &console; |
147 | 147 | ||
148 | irq_initialize(&msim_irq); |
148 | irq_initialize(&msim_irq); |
149 | msim_irq.devno = devno; |
149 | msim_irq.devno = devno; |
150 | msim_irq.inr = MSIM_KBD_IRQ; |
150 | msim_irq.inr = MSIM_KBD_IRQ; |
151 | msim_irq.claim = msim_claim; |
151 | msim_irq.claim = msim_claim; |
152 | msim_irq.handler = msim_irq_handler; |
152 | msim_irq.handler = msim_irq_handler; |
153 | irq_register(&msim_irq); |
153 | irq_register(&msim_irq); |
154 | 154 | ||
155 | cp0_unmask_int(MSIM_KBD_IRQ); |
155 | cp0_unmask_int(MSIM_KBD_IRQ); |
156 | 156 | ||
157 | sysinfo_set_item_val("kbd", NULL, true); |
157 | sysinfo_set_item_val("kbd", NULL, true); |
158 | sysinfo_set_item_val("kbd.devno", NULL, devno); |
158 | sysinfo_set_item_val("kbd.devno", NULL, devno); |
159 | sysinfo_set_item_val("kbd.inr", NULL, MSIM_KBD_IRQ); |
159 | sysinfo_set_item_val("kbd.inr", NULL, MSIM_KBD_IRQ); |
160 | sysinfo_set_item_val("kbd.address.virtual", NULL, MSIM_KBD_ADDRESS); |
160 | sysinfo_set_item_val("kbd.address.virtual", NULL, MSIM_KBD_ADDRESS); |
161 | } |
161 | } |
162 | 162 | ||
163 | /** @} |
163 | /** @} |
164 | */ |
164 | */ |
165 | 165 |