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1/*
2 * Copyright (c) 2000-2001 Vojtech Pavlik
3 *
4 * Based on the work of:
5 * Hamish Macdonald
6 */
7
8/*
9 * Amiga keyboard driver for Linux/m68k
10 */
11
12/*
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 *
27 * Should you need to contact me, the author, you can do so either by
28 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
29 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
30 */
31
32#include <linux/module.h>
33#include <linux/init.h>
34#include <linux/input.h>
35#include <linux/delay.h>
36#include <linux/interrupt.h>
37#include <linux/keyboard.h>
38#include <linux/platform_device.h>
39
40#include <asm/amigaints.h>
41#include <asm/amigahw.h>
42#include <asm/irq.h>
43
44MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
45MODULE_DESCRIPTION("Amiga keyboard driver");
46MODULE_LICENSE("GPL");
47
48static unsigned char amikbd_keycode[0x78] __initdata = {
49 [0] = KEY_GRAVE,
50 [1] = KEY_1,
51 [2] = KEY_2,
52 [3] = KEY_3,
53 [4] = KEY_4,
54 [5] = KEY_5,
55 [6] = KEY_6,
56 [7] = KEY_7,
57 [8] = KEY_8,
58 [9] = KEY_9,
59 [10] = KEY_0,
60 [11] = KEY_MINUS,
61 [12] = KEY_EQUAL,
62 [13] = KEY_BACKSLASH,
63 [15] = KEY_KP0,
64 [16] = KEY_Q,
65 [17] = KEY_W,
66 [18] = KEY_E,
67 [19] = KEY_R,
68 [20] = KEY_T,
69 [21] = KEY_Y,
70 [22] = KEY_U,
71 [23] = KEY_I,
72 [24] = KEY_O,
73 [25] = KEY_P,
74 [26] = KEY_LEFTBRACE,
75 [27] = KEY_RIGHTBRACE,
76 [29] = KEY_KP1,
77 [30] = KEY_KP2,
78 [31] = KEY_KP3,
79 [32] = KEY_A,
80 [33] = KEY_S,
81 [34] = KEY_D,
82 [35] = KEY_F,
83 [36] = KEY_G,
84 [37] = KEY_H,
85 [38] = KEY_J,
86 [39] = KEY_K,
87 [40] = KEY_L,
88 [41] = KEY_SEMICOLON,
89 [42] = KEY_APOSTROPHE,
90 [43] = KEY_BACKSLASH,
91 [45] = KEY_KP4,
92 [46] = KEY_KP5,
93 [47] = KEY_KP6,
94 [48] = KEY_102ND,
95 [49] = KEY_Z,
96 [50] = KEY_X,
97 [51] = KEY_C,
98 [52] = KEY_V,
99 [53] = KEY_B,
100 [54] = KEY_N,
101 [55] = KEY_M,
102 [56] = KEY_COMMA,
103 [57] = KEY_DOT,
104 [58] = KEY_SLASH,
105 [60] = KEY_KPDOT,
106 [61] = KEY_KP7,
107 [62] = KEY_KP8,
108 [63] = KEY_KP9,
109 [64] = KEY_SPACE,
110 [65] = KEY_BACKSPACE,
111 [66] = KEY_TAB,
112 [67] = KEY_KPENTER,
113 [68] = KEY_ENTER,
114 [69] = KEY_ESC,
115 [70] = KEY_DELETE,
116 [74] = KEY_KPMINUS,
117 [76] = KEY_UP,
118 [77] = KEY_DOWN,
119 [78] = KEY_RIGHT,
120 [79] = KEY_LEFT,
121 [80] = KEY_F1,
122 [81] = KEY_F2,
123 [82] = KEY_F3,
124 [83] = KEY_F4,
125 [84] = KEY_F5,
126 [85] = KEY_F6,
127 [86] = KEY_F7,
128 [87] = KEY_F8,
129 [88] = KEY_F9,
130 [89] = KEY_F10,
131 [90] = KEY_KPLEFTPAREN,
132 [91] = KEY_KPRIGHTPAREN,
133 [92] = KEY_KPSLASH,
134 [93] = KEY_KPASTERISK,
135 [94] = KEY_KPPLUS,
136 [95] = KEY_HELP,
137 [96] = KEY_LEFTSHIFT,
138 [97] = KEY_RIGHTSHIFT,
139 [98] = KEY_CAPSLOCK,
140 [99] = KEY_LEFTCTRL,
141 [100] = KEY_LEFTALT,
142 [101] = KEY_RIGHTALT,
143 [102] = KEY_LEFTMETA,
144 [103] = KEY_RIGHTMETA
145};
146
147static const char *amikbd_messages[8] = {
148 [0] = KERN_ALERT "amikbd: Ctrl-Amiga-Amiga reset warning!!\n",
149 [1] = KERN_WARNING "amikbd: keyboard lost sync\n",
150 [2] = KERN_WARNING "amikbd: keyboard buffer overflow\n",
151 [3] = KERN_WARNING "amikbd: keyboard controller failure\n",
152 [4] = KERN_ERR "amikbd: keyboard selftest failure\n",
153 [5] = KERN_INFO "amikbd: initiate power-up key stream\n",
154 [6] = KERN_INFO "amikbd: terminate power-up key stream\n",
155 [7] = KERN_WARNING "amikbd: keyboard interrupt\n"
156};
157
158static irqreturn_t amikbd_interrupt(int irq, void *data)
159{
160 struct input_dev *dev = data;
161 unsigned char scancode, down;
162
163 scancode = ~ciaa.sdr; /* get and invert scancode (keyboard is active low) */
164 ciaa.cra |= 0x40; /* switch SP pin to output for handshake */
165 udelay(85); /* wait until 85 us have expired */
166 ciaa.cra &= ~0x40; /* switch CIA serial port to input mode */
167
168 down = !(scancode & 1); /* lowest bit is release bit */
169 scancode >>= 1;
170
171 if (scancode < 0x78) { /* scancodes < 0x78 are keys */
172 if (scancode == 98) { /* CapsLock is a toggle switch key on Amiga */
173 input_report_key(dev, scancode, 1);
174 input_report_key(dev, scancode, 0);
175 } else {
176 input_report_key(dev, scancode, down);
177 }
178
179 input_sync(dev);
180 } else /* scancodes >= 0x78 are error codes */
181 printk(amikbd_messages[scancode - 0x78]);
182
183 return IRQ_HANDLED;
184}
185
186static int __init amikbd_probe(struct platform_device *pdev)
187{
188 struct input_dev *dev;
189 int i, j, err;
190
191 dev = input_allocate_device();
192 if (!dev) {
193 dev_err(&pdev->dev, "Not enough memory for input device\n");
194 return -ENOMEM;
195 }
196
197 dev->name = pdev->name;
198 dev->phys = "amikbd/input0";
199 dev->id.bustype = BUS_AMIGA;
200 dev->id.vendor = 0x0001;
201 dev->id.product = 0x0001;
202 dev->id.version = 0x0100;
203 dev->dev.parent = &pdev->dev;
204
205 dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
206
207 for (i = 0; i < 0x78; i++)
208 set_bit(i, dev->keybit);
209
210 for (i = 0; i < MAX_NR_KEYMAPS; i++) {
211 static u_short temp_map[NR_KEYS] __initdata;
212 if (!key_maps[i])
213 continue;
214 memset(temp_map, 0, sizeof(temp_map));
215 for (j = 0; j < 0x78; j++) {
216 if (!amikbd_keycode[j])
217 continue;
218 temp_map[j] = key_maps[i][amikbd_keycode[j]];
219 }
220 for (j = 0; j < NR_KEYS; j++) {
221 if (!temp_map[j])
222 temp_map[j] = 0xf200;
223 }
224 memcpy(key_maps[i], temp_map, sizeof(temp_map));
225 }
226 ciaa.cra &= ~0x41; /* serial data in, turn off TA */
227 err = request_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt, 0, "amikbd",
228 dev);
229 if (err)
230 goto fail2;
231
232 err = input_register_device(dev);
233 if (err)
234 goto fail3;
235
236 platform_set_drvdata(pdev, dev);
237
238 return 0;
239
240 fail3: free_irq(IRQ_AMIGA_CIAA_SP, dev);
241 fail2: input_free_device(dev);
242 return err;
243}
244
245static int __exit amikbd_remove(struct platform_device *pdev)
246{
247 struct input_dev *dev = platform_get_drvdata(pdev);
248
249 free_irq(IRQ_AMIGA_CIAA_SP, dev);
250 input_unregister_device(dev);
251 return 0;
252}
253
254static struct platform_driver amikbd_driver = {
255 .remove = __exit_p(amikbd_remove),
256 .driver = {
257 .name = "amiga-keyboard",
258 .owner = THIS_MODULE,
259 },
260};
261
262module_platform_driver_probe(amikbd_driver, amikbd_probe);
263
264MODULE_ALIAS("platform:amiga-keyboard");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) 2000-2001 Vojtech Pavlik
4 *
5 * Based on the work of:
6 * Hamish Macdonald
7 */
8
9/*
10 * Amiga keyboard driver for Linux/m68k
11 */
12
13/*
14 */
15
16#include <linux/module.h>
17#include <linux/init.h>
18#include <linux/input.h>
19#include <linux/delay.h>
20#include <linux/interrupt.h>
21#include <linux/keyboard.h>
22#include <linux/platform_device.h>
23
24#include <asm/amigaints.h>
25#include <asm/amigahw.h>
26#include <asm/irq.h>
27
28MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
29MODULE_DESCRIPTION("Amiga keyboard driver");
30MODULE_LICENSE("GPL");
31
32#ifdef CONFIG_HW_CONSOLE
33static unsigned char amikbd_keycode[0x78] __initdata = {
34 [0] = KEY_GRAVE,
35 [1] = KEY_1,
36 [2] = KEY_2,
37 [3] = KEY_3,
38 [4] = KEY_4,
39 [5] = KEY_5,
40 [6] = KEY_6,
41 [7] = KEY_7,
42 [8] = KEY_8,
43 [9] = KEY_9,
44 [10] = KEY_0,
45 [11] = KEY_MINUS,
46 [12] = KEY_EQUAL,
47 [13] = KEY_BACKSLASH,
48 [15] = KEY_KP0,
49 [16] = KEY_Q,
50 [17] = KEY_W,
51 [18] = KEY_E,
52 [19] = KEY_R,
53 [20] = KEY_T,
54 [21] = KEY_Y,
55 [22] = KEY_U,
56 [23] = KEY_I,
57 [24] = KEY_O,
58 [25] = KEY_P,
59 [26] = KEY_LEFTBRACE,
60 [27] = KEY_RIGHTBRACE,
61 [29] = KEY_KP1,
62 [30] = KEY_KP2,
63 [31] = KEY_KP3,
64 [32] = KEY_A,
65 [33] = KEY_S,
66 [34] = KEY_D,
67 [35] = KEY_F,
68 [36] = KEY_G,
69 [37] = KEY_H,
70 [38] = KEY_J,
71 [39] = KEY_K,
72 [40] = KEY_L,
73 [41] = KEY_SEMICOLON,
74 [42] = KEY_APOSTROPHE,
75 [43] = KEY_BACKSLASH,
76 [45] = KEY_KP4,
77 [46] = KEY_KP5,
78 [47] = KEY_KP6,
79 [48] = KEY_102ND,
80 [49] = KEY_Z,
81 [50] = KEY_X,
82 [51] = KEY_C,
83 [52] = KEY_V,
84 [53] = KEY_B,
85 [54] = KEY_N,
86 [55] = KEY_M,
87 [56] = KEY_COMMA,
88 [57] = KEY_DOT,
89 [58] = KEY_SLASH,
90 [60] = KEY_KPDOT,
91 [61] = KEY_KP7,
92 [62] = KEY_KP8,
93 [63] = KEY_KP9,
94 [64] = KEY_SPACE,
95 [65] = KEY_BACKSPACE,
96 [66] = KEY_TAB,
97 [67] = KEY_KPENTER,
98 [68] = KEY_ENTER,
99 [69] = KEY_ESC,
100 [70] = KEY_DELETE,
101 [74] = KEY_KPMINUS,
102 [76] = KEY_UP,
103 [77] = KEY_DOWN,
104 [78] = KEY_RIGHT,
105 [79] = KEY_LEFT,
106 [80] = KEY_F1,
107 [81] = KEY_F2,
108 [82] = KEY_F3,
109 [83] = KEY_F4,
110 [84] = KEY_F5,
111 [85] = KEY_F6,
112 [86] = KEY_F7,
113 [87] = KEY_F8,
114 [88] = KEY_F9,
115 [89] = KEY_F10,
116 [90] = KEY_KPLEFTPAREN,
117 [91] = KEY_KPRIGHTPAREN,
118 [92] = KEY_KPSLASH,
119 [93] = KEY_KPASTERISK,
120 [94] = KEY_KPPLUS,
121 [95] = KEY_HELP,
122 [96] = KEY_LEFTSHIFT,
123 [97] = KEY_RIGHTSHIFT,
124 [98] = KEY_CAPSLOCK,
125 [99] = KEY_LEFTCTRL,
126 [100] = KEY_LEFTALT,
127 [101] = KEY_RIGHTALT,
128 [102] = KEY_LEFTMETA,
129 [103] = KEY_RIGHTMETA
130};
131
132static void __init amikbd_init_console_keymaps(void)
133{
134 /* We can spare 512 bytes on stack for temp_map in init path. */
135 unsigned short temp_map[NR_KEYS];
136 int i, j;
137
138 for (i = 0; i < MAX_NR_KEYMAPS; i++) {
139 if (!key_maps[i])
140 continue;
141 memset(temp_map, 0, sizeof(temp_map));
142 for (j = 0; j < 0x78; j++) {
143 if (!amikbd_keycode[j])
144 continue;
145 temp_map[j] = key_maps[i][amikbd_keycode[j]];
146 }
147 for (j = 0; j < NR_KEYS; j++) {
148 if (!temp_map[j])
149 temp_map[j] = 0xf200;
150 }
151 memcpy(key_maps[i], temp_map, sizeof(temp_map));
152 }
153}
154#else /* !CONFIG_HW_CONSOLE */
155static inline void amikbd_init_console_keymaps(void) {}
156#endif /* !CONFIG_HW_CONSOLE */
157
158static const char *amikbd_messages[8] = {
159 [0] = KERN_ALERT "amikbd: Ctrl-Amiga-Amiga reset warning!!\n",
160 [1] = KERN_WARNING "amikbd: keyboard lost sync\n",
161 [2] = KERN_WARNING "amikbd: keyboard buffer overflow\n",
162 [3] = KERN_WARNING "amikbd: keyboard controller failure\n",
163 [4] = KERN_ERR "amikbd: keyboard selftest failure\n",
164 [5] = KERN_INFO "amikbd: initiate power-up key stream\n",
165 [6] = KERN_INFO "amikbd: terminate power-up key stream\n",
166 [7] = KERN_WARNING "amikbd: keyboard interrupt\n"
167};
168
169static irqreturn_t amikbd_interrupt(int irq, void *data)
170{
171 struct input_dev *dev = data;
172 unsigned char scancode, down;
173
174 scancode = ~ciaa.sdr; /* get and invert scancode (keyboard is active low) */
175 ciaa.cra |= 0x40; /* switch SP pin to output for handshake */
176 udelay(85); /* wait until 85 us have expired */
177 ciaa.cra &= ~0x40; /* switch CIA serial port to input mode */
178
179 down = !(scancode & 1); /* lowest bit is release bit */
180 scancode >>= 1;
181
182 if (scancode < 0x78) { /* scancodes < 0x78 are keys */
183 if (scancode == 98) { /* CapsLock is a toggle switch key on Amiga */
184 input_report_key(dev, scancode, 1);
185 input_report_key(dev, scancode, 0);
186 } else {
187 input_report_key(dev, scancode, down);
188 }
189
190 input_sync(dev);
191 } else /* scancodes >= 0x78 are error codes */
192 printk(amikbd_messages[scancode - 0x78]);
193
194 return IRQ_HANDLED;
195}
196
197static int __init amikbd_probe(struct platform_device *pdev)
198{
199 struct input_dev *dev;
200 int i, err;
201
202 dev = input_allocate_device();
203 if (!dev) {
204 dev_err(&pdev->dev, "Not enough memory for input device\n");
205 return -ENOMEM;
206 }
207
208 dev->name = pdev->name;
209 dev->phys = "amikbd/input0";
210 dev->id.bustype = BUS_AMIGA;
211 dev->id.vendor = 0x0001;
212 dev->id.product = 0x0001;
213 dev->id.version = 0x0100;
214 dev->dev.parent = &pdev->dev;
215
216 dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
217
218 for (i = 0; i < 0x78; i++)
219 set_bit(i, dev->keybit);
220
221 amikbd_init_console_keymaps();
222
223 ciaa.cra &= ~0x41; /* serial data in, turn off TA */
224 err = request_irq(IRQ_AMIGA_CIAA_SP, amikbd_interrupt, 0, "amikbd",
225 dev);
226 if (err)
227 goto fail2;
228
229 err = input_register_device(dev);
230 if (err)
231 goto fail3;
232
233 platform_set_drvdata(pdev, dev);
234
235 return 0;
236
237 fail3: free_irq(IRQ_AMIGA_CIAA_SP, dev);
238 fail2: input_free_device(dev);
239 return err;
240}
241
242static int __exit amikbd_remove(struct platform_device *pdev)
243{
244 struct input_dev *dev = platform_get_drvdata(pdev);
245
246 free_irq(IRQ_AMIGA_CIAA_SP, dev);
247 input_unregister_device(dev);
248 return 0;
249}
250
251static struct platform_driver amikbd_driver = {
252 .remove = __exit_p(amikbd_remove),
253 .driver = {
254 .name = "amiga-keyboard",
255 },
256};
257
258module_platform_driver_probe(amikbd_driver, amikbd_probe);
259
260MODULE_ALIAS("platform:amiga-keyboard");