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1 | /* |
1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
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 genarch |
29 | /** @addtogroup genarch |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** |
32 | /** |
33 | * @file |
33 | * @file |
34 | * @brief Zilog 8530 serial port / keyboard driver. |
34 | * @brief Zilog 8530 serial port / keyboard driver. |
35 | */ |
35 | */ |
36 | 36 | ||
37 | #include <genarch/kbd/z8530.h> |
37 | #include <genarch/kbd/z8530.h> |
38 | #include <genarch/kbd/key.h> |
38 | #include <genarch/kbd/key.h> |
39 | #include <genarch/kbd/scanc.h> |
39 | #include <genarch/kbd/scanc.h> |
40 | #include <genarch/kbd/scanc_sun.h> |
40 | #include <genarch/kbd/scanc_sun.h> |
- | 41 | #include <arch/drivers/fhc.h> |
|
41 | #include <arch/drivers/z8530.h> |
42 | #include <arch/drivers/z8530.h> |
42 | #include <arch/drivers/kbd.h> |
- | |
43 | #include <arch/interrupt.h> |
43 | #include <arch/interrupt.h> |
44 | #include <cpu.h> |
44 | #include <cpu.h> |
45 | #include <arch/asm.h> |
45 | #include <arch/asm.h> |
46 | #include <arch.h> |
46 | #include <arch.h> |
47 | #include <typedefs.h> |
47 | #include <typedefs.h> |
48 | #include <console/chardev.h> |
48 | #include <console/chardev.h> |
49 | #include <console/console.h> |
49 | #include <console/console.h> |
50 | #include <interrupt.h> |
50 | #include <interrupt.h> |
51 | 51 | ||
52 | /* |
52 | /* |
53 | * These codes read from z8530 data register are silently ignored. |
53 | * These codes read from z8530 data register are silently ignored. |
54 | */ |
54 | */ |
55 | #define IGNORE_CODE 0x7f /* all keys up */ |
55 | #define IGNORE_CODE 0x7f /* all keys up */ |
56 | 56 | ||
57 | static void z8530_suspend(chardev_t *); |
57 | static void z8530_suspend(chardev_t *); |
58 | static void z8530_resume(chardev_t *); |
58 | static void z8530_resume(chardev_t *); |
59 | 59 | ||
60 | chardev_t kbrd; |
60 | chardev_t kbrd; |
61 | static chardev_operations_t ops = { |
61 | static chardev_operations_t ops = { |
62 | .suspend = z8530_suspend, |
62 | .suspend = z8530_suspend, |
63 | .resume = z8530_resume, |
63 | .resume = z8530_resume, |
64 | .read = key_read |
64 | .read = key_read |
65 | }; |
65 | }; |
66 | 66 | ||
67 | void z8530_interrupt(int n, istate_t *istate); |
- | |
68 | void z8530_wait(void); |
67 | void z8530_wait(void); |
69 | 68 | ||
70 | /** Initialize keyboard and service interrupts using kernel routine */ |
69 | /** Initialize keyboard and service interrupts using kernel routine */ |
71 | void z8530_grab(void) |
70 | void z8530_grab(void) |
72 | { |
71 | { |
73 | } |
72 | } |
- | 73 | ||
74 | /** Resume the former interrupt vector */ |
74 | /** Resume the former interrupt vector */ |
75 | void z8530_release(void) |
75 | void z8530_release(void) |
76 | { |
76 | { |
77 | } |
77 | } |
78 | 78 | ||
79 | #include <print.h> |
- | |
80 | - | ||
81 | /** Initialize z8530. */ |
79 | /** Initialize z8530. */ |
82 | void z8530_init(void) |
80 | void z8530_init(void) |
83 | { |
81 | { |
84 | chardev_initialize("z8530_kbd", &kbrd, &ops); |
82 | chardev_initialize("z8530_kbd", &kbrd, &ops); |
85 | stdin = &kbrd; |
83 | stdin = &kbrd; |
86 | 84 | ||
- | 85 | (void) z8530_read_a(RR8); |
|
- | 86 | ||
87 | z8530_write_a(WR1, WR1_IARCSC); /* interrupt on all characters */ |
87 | z8530_write_a(WR1, WR1_IARCSC); /* interrupt on all characters */ |
88 | z8530_write_a(WR2, 12); /* FIXME: IRQ12 ??? */ |
- | |
89 | 88 | ||
90 | /* 8 bits per character and enable receiver */ |
89 | /* 8 bits per character and enable receiver */ |
91 | z8530_write_a(WR3, WR3_RX8BITSCH | WR3_RX_ENABLE); |
90 | z8530_write_a(WR3, WR3_RX8BITSCH | WR3_RX_ENABLE); |
92 | 91 | ||
93 | z8530_write_a(WR9, WR9_MIE); /* Master Interrupt Enable. */ |
92 | z8530_write_a(WR9, WR9_MIE); /* Master Interrupt Enable. */ |
- | 93 | ||
- | 94 | /* |
|
- | 95 | * We need to initialize the FireHose Controller, |
|
- | 96 | * to which is this z8530 attached. Otherwise |
|
- | 97 | * interrupts generated by the z8530 would not |
|
- | 98 | * be forwarded to the CPU. |
|
- | 99 | */ |
|
- | 100 | fhc_init(); |
|
94 | } |
101 | } |
95 | 102 | ||
96 | /** Process z8530 interrupt. |
103 | /** Process z8530 interrupt. |
97 | * |
104 | * |
98 | * @param n Interrupt vector. |
105 | * @param n Interrupt vector. |
99 | * @param istate Interrupted state. |
106 | * @param istate Interrupted state. |
100 | */ |
107 | */ |
101 | void z8530_interrupt(int n, istate_t *istate) |
108 | void z8530_interrupt(void) |
102 | { |
109 | { |
- | 110 | z8530_poll(); |
|
103 | } |
111 | } |
104 | 112 | ||
105 | /** Wait until the controller reads its data. */ |
113 | /** Wait until the controller reads its data. */ |
106 | void z8530_wait(void) { |
114 | void z8530_wait(void) { |
107 | } |
115 | } |
108 | 116 | ||
109 | /* Called from getc(). */ |
117 | /* Called from getc(). */ |
110 | void z8530_resume(chardev_t *d) |
118 | void z8530_resume(chardev_t *d) |
111 | { |
119 | { |
112 | } |
120 | } |
113 | 121 | ||
114 | /* Called from getc(). */ |
122 | /* Called from getc(). */ |
115 | void z8530_suspend(chardev_t *d) |
123 | void z8530_suspend(chardev_t *d) |
116 | { |
124 | { |
117 | } |
125 | } |
118 | 126 | ||
119 | char key_read(chardev_t *d) |
127 | char key_read(chardev_t *d) |
120 | { |
128 | { |
121 | char ch; |
129 | char ch; |
122 | 130 | ||
123 | while(!(ch = active_read_buff_read())) { |
131 | while(!(ch = active_read_buff_read())) { |
124 | uint8_t x; |
132 | uint8_t x; |
125 | while (!(z8530_read_a(RR0) & RR0_RCA)) |
133 | while (!(z8530_read_a(RR0) & RR0_RCA)) |
126 | ; |
134 | ; |
127 | x = z8530_read_a(RR8); |
135 | x = z8530_read_a(RR8); |
128 | if (x != IGNORE_CODE) { |
136 | if (x != IGNORE_CODE) { |
129 | if (x & KEY_RELEASE) |
137 | if (x & KEY_RELEASE) |
130 | key_released(x ^ KEY_RELEASE); |
138 | key_released(x ^ KEY_RELEASE); |
131 | else |
139 | else |
132 | active_read_key_pressed(x); |
140 | active_read_key_pressed(x); |
133 | } |
141 | } |
134 | } |
142 | } |
135 | return ch; |
143 | return ch; |
136 | } |
144 | } |
137 | 145 | ||
138 | /** Poll for key press and release events. |
146 | /** Poll for key press and release events. |
139 | * |
147 | * |
140 | * This function can be used to implement keyboard polling. |
148 | * This function can be used to implement keyboard polling. |
141 | */ |
149 | */ |
142 | void z8530_poll(void) |
150 | void z8530_poll(void) |
143 | { |
151 | { |
144 | uint8_t x; |
152 | uint8_t x; |
145 | 153 | ||
146 | while (z8530_read_a(RR0) & RR0_RCA) { |
154 | while (z8530_read_a(RR0) & RR0_RCA) { |
147 | x = z8530_read_a(RR8); |
155 | x = z8530_read_a(RR8); |
148 | if (x != IGNORE_CODE) { |
156 | if (x != IGNORE_CODE) { |
149 | if (x & KEY_RELEASE) |
157 | if (x & KEY_RELEASE) |
150 | key_released(x ^ KEY_RELEASE); |
158 | key_released(x ^ KEY_RELEASE); |
151 | else |
159 | else |
152 | key_pressed(x); |
160 | key_pressed(x); |
153 | } |
161 | } |
154 | } |
162 | } |
155 | } |
163 | } |
156 | 164 | ||
157 | /** @} |
165 | /** @} |
158 | */ |
166 | */ |
159 | 167 |