1 /*
2 * IBM ASM Service Processor Device Driver
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 *
18 * Copyright (C) IBM Corporation, 2004
19 *
20 * Authors: Max Asböck <amax@us.ibm.com>
21 * Vernon Mauery <vernux@us.ibm.com>
22 *
23 */
24
25 /* Remote mouse and keyboard event handling functions */
26
27 #include <linux/pci.h>
28 #include "ibmasm.h"
29 #include "remote.h"
30
31 #define MOUSE_X_MAX 1600
32 #define MOUSE_Y_MAX 1200
33
34 static const unsigned short xlate_high[XLATE_SIZE] = {
35 [KEY_SYM_ENTER & 0xff] = KEY_ENTER,
36 [KEY_SYM_KPSLASH & 0xff] = KEY_KPSLASH,
37 [KEY_SYM_KPSTAR & 0xff] = KEY_KPASTERISK,
38 [KEY_SYM_KPMINUS & 0xff] = KEY_KPMINUS,
39 [KEY_SYM_KPDOT & 0xff] = KEY_KPDOT,
40 [KEY_SYM_KPPLUS & 0xff] = KEY_KPPLUS,
41 [KEY_SYM_KP0 & 0xff] = KEY_KP0,
42 [KEY_SYM_KP1 & 0xff] = KEY_KP1,
43 [KEY_SYM_KP2 & 0xff] = KEY_KP2, [KEY_SYM_KPDOWN & 0xff] = KEY_KP2,
44 [KEY_SYM_KP3 & 0xff] = KEY_KP3,
45 [KEY_SYM_KP4 & 0xff] = KEY_KP4, [KEY_SYM_KPLEFT & 0xff] = KEY_KP4,
46 [KEY_SYM_KP5 & 0xff] = KEY_KP5,
47 [KEY_SYM_KP6 & 0xff] = KEY_KP6, [KEY_SYM_KPRIGHT & 0xff] = KEY_KP6,
48 [KEY_SYM_KP7 & 0xff] = KEY_KP7,
49 [KEY_SYM_KP8 & 0xff] = KEY_KP8, [KEY_SYM_KPUP & 0xff] = KEY_KP8,
50 [KEY_SYM_KP9 & 0xff] = KEY_KP9,
51 [KEY_SYM_BK_SPC & 0xff] = KEY_BACKSPACE,
52 [KEY_SYM_TAB & 0xff] = KEY_TAB,
53 [KEY_SYM_CTRL & 0xff] = KEY_LEFTCTRL,
54 [KEY_SYM_ALT & 0xff] = KEY_LEFTALT,
55 [KEY_SYM_INSERT & 0xff] = KEY_INSERT,
56 [KEY_SYM_DELETE & 0xff] = KEY_DELETE,
57 [KEY_SYM_SHIFT & 0xff] = KEY_LEFTSHIFT,
58 [KEY_SYM_UARROW & 0xff] = KEY_UP,
59 [KEY_SYM_DARROW & 0xff] = KEY_DOWN,
60 [KEY_SYM_LARROW & 0xff] = KEY_LEFT,
61 [KEY_SYM_RARROW & 0xff] = KEY_RIGHT,
62 [KEY_SYM_ESCAPE & 0xff] = KEY_ESC,
63 [KEY_SYM_PAGEUP & 0xff] = KEY_PAGEUP,
64 [KEY_SYM_PAGEDOWN & 0xff] = KEY_PAGEDOWN,
65 [KEY_SYM_HOME & 0xff] = KEY_HOME,
66 [KEY_SYM_END & 0xff] = KEY_END,
67 [KEY_SYM_F1 & 0xff] = KEY_F1,
68 [KEY_SYM_F2 & 0xff] = KEY_F2,
69 [KEY_SYM_F3 & 0xff] = KEY_F3,
70 [KEY_SYM_F4 & 0xff] = KEY_F4,
71 [KEY_SYM_F5 & 0xff] = KEY_F5,
72 [KEY_SYM_F6 & 0xff] = KEY_F6,
73 [KEY_SYM_F7 & 0xff] = KEY_F7,
74 [KEY_SYM_F8 & 0xff] = KEY_F8,
75 [KEY_SYM_F9 & 0xff] = KEY_F9,
76 [KEY_SYM_F10 & 0xff] = KEY_F10,
77 [KEY_SYM_F11 & 0xff] = KEY_F11,
78 [KEY_SYM_F12 & 0xff] = KEY_F12,
79 [KEY_SYM_CAP_LOCK & 0xff] = KEY_CAPSLOCK,
80 [KEY_SYM_NUM_LOCK & 0xff] = KEY_NUMLOCK,
81 [KEY_SYM_SCR_LOCK & 0xff] = KEY_SCROLLLOCK,
82 };
83
84 static const unsigned short xlate[XLATE_SIZE] = {
85 [NO_KEYCODE] = KEY_RESERVED,
86 [KEY_SYM_SPACE] = KEY_SPACE,
87 [KEY_SYM_TILDE] = KEY_GRAVE, [KEY_SYM_BKTIC] = KEY_GRAVE,
88 [KEY_SYM_ONE] = KEY_1, [KEY_SYM_BANG] = KEY_1,
89 [KEY_SYM_TWO] = KEY_2, [KEY_SYM_AT] = KEY_2,
90 [KEY_SYM_THREE] = KEY_3, [KEY_SYM_POUND] = KEY_3,
91 [KEY_SYM_FOUR] = KEY_4, [KEY_SYM_DOLLAR] = KEY_4,
92 [KEY_SYM_FIVE] = KEY_5, [KEY_SYM_PERCENT] = KEY_5,
93 [KEY_SYM_SIX] = KEY_6, [KEY_SYM_CARAT] = KEY_6,
94 [KEY_SYM_SEVEN] = KEY_7, [KEY_SYM_AMPER] = KEY_7,
95 [KEY_SYM_EIGHT] = KEY_8, [KEY_SYM_STAR] = KEY_8,
96 [KEY_SYM_NINE] = KEY_9, [KEY_SYM_LPAREN] = KEY_9,
97 [KEY_SYM_ZERO] = KEY_0, [KEY_SYM_RPAREN] = KEY_0,
98 [KEY_SYM_MINUS] = KEY_MINUS, [KEY_SYM_USCORE] = KEY_MINUS,
99 [KEY_SYM_EQUAL] = KEY_EQUAL, [KEY_SYM_PLUS] = KEY_EQUAL,
100 [KEY_SYM_LBRKT] = KEY_LEFTBRACE, [KEY_SYM_LCURLY] = KEY_LEFTBRACE,
101 [KEY_SYM_RBRKT] = KEY_RIGHTBRACE, [KEY_SYM_RCURLY] = KEY_RIGHTBRACE,
102 [KEY_SYM_SLASH] = KEY_BACKSLASH, [KEY_SYM_PIPE] = KEY_BACKSLASH,
103 [KEY_SYM_TIC] = KEY_APOSTROPHE, [KEY_SYM_QUOTE] = KEY_APOSTROPHE,
104 [KEY_SYM_SEMIC] = KEY_SEMICOLON, [KEY_SYM_COLON] = KEY_SEMICOLON,
105 [KEY_SYM_COMMA] = KEY_COMMA, [KEY_SYM_LT] = KEY_COMMA,
106 [KEY_SYM_PERIOD] = KEY_DOT, [KEY_SYM_GT] = KEY_DOT,
107 [KEY_SYM_BSLASH] = KEY_SLASH, [KEY_SYM_QMARK] = KEY_SLASH,
108 [KEY_SYM_A] = KEY_A, [KEY_SYM_a] = KEY_A,
109 [KEY_SYM_B] = KEY_B, [KEY_SYM_b] = KEY_B,
110 [KEY_SYM_C] = KEY_C, [KEY_SYM_c] = KEY_C,
111 [KEY_SYM_D] = KEY_D, [KEY_SYM_d] = KEY_D,
112 [KEY_SYM_E] = KEY_E, [KEY_SYM_e] = KEY_E,
113 [KEY_SYM_F] = KEY_F, [KEY_SYM_f] = KEY_F,
114 [KEY_SYM_G] = KEY_G, [KEY_SYM_g] = KEY_G,
115 [KEY_SYM_H] = KEY_H, [KEY_SYM_h] = KEY_H,
116 [KEY_SYM_I] = KEY_I, [KEY_SYM_i] = KEY_I,
117 [KEY_SYM_J] = KEY_J, [KEY_SYM_j] = KEY_J,
118 [KEY_SYM_K] = KEY_K, [KEY_SYM_k] = KEY_K,
119 [KEY_SYM_L] = KEY_L, [KEY_SYM_l] = KEY_L,
120 [KEY_SYM_M] = KEY_M, [KEY_SYM_m] = KEY_M,
121 [KEY_SYM_N] = KEY_N, [KEY_SYM_n] = KEY_N,
122 [KEY_SYM_O] = KEY_O, [KEY_SYM_o] = KEY_O,
123 [KEY_SYM_P] = KEY_P, [KEY_SYM_p] = KEY_P,
124 [KEY_SYM_Q] = KEY_Q, [KEY_SYM_q] = KEY_Q,
125 [KEY_SYM_R] = KEY_R, [KEY_SYM_r] = KEY_R,
126 [KEY_SYM_S] = KEY_S, [KEY_SYM_s] = KEY_S,
127 [KEY_SYM_T] = KEY_T, [KEY_SYM_t] = KEY_T,
128 [KEY_SYM_U] = KEY_U, [KEY_SYM_u] = KEY_U,
129 [KEY_SYM_V] = KEY_V, [KEY_SYM_v] = KEY_V,
130 [KEY_SYM_W] = KEY_W, [KEY_SYM_w] = KEY_W,
131 [KEY_SYM_X] = KEY_X, [KEY_SYM_x] = KEY_X,
132 [KEY_SYM_Y] = KEY_Y, [KEY_SYM_y] = KEY_Y,
133 [KEY_SYM_Z] = KEY_Z, [KEY_SYM_z] = KEY_Z,
134 };
135
print_input(struct remote_input * input)136 static void print_input(struct remote_input *input)
137 {
138 if (input->type == INPUT_TYPE_MOUSE) {
139 unsigned char buttons = input->mouse_buttons;
140 dbg("remote mouse movement: (x,y)=(%d,%d)%s%s%s%s\n",
141 input->data.mouse.x, input->data.mouse.y,
142 (buttons) ? " -- buttons:" : "",
143 (buttons & REMOTE_BUTTON_LEFT) ? "left " : "",
144 (buttons & REMOTE_BUTTON_MIDDLE) ? "middle " : "",
145 (buttons & REMOTE_BUTTON_RIGHT) ? "right" : ""
146 );
147 } else {
148 dbg("remote keypress (code, flag, down):"
149 "%d (0x%x) [0x%x] [0x%x]\n",
150 input->data.keyboard.key_code,
151 input->data.keyboard.key_code,
152 input->data.keyboard.key_flag,
153 input->data.keyboard.key_down
154 );
155 }
156 }
157
send_mouse_event(struct input_dev * dev,struct remote_input * input)158 static void send_mouse_event(struct input_dev *dev, struct remote_input *input)
159 {
160 unsigned char buttons = input->mouse_buttons;
161
162 input_report_abs(dev, ABS_X, input->data.mouse.x);
163 input_report_abs(dev, ABS_Y, input->data.mouse.y);
164 input_report_key(dev, BTN_LEFT, buttons & REMOTE_BUTTON_LEFT);
165 input_report_key(dev, BTN_MIDDLE, buttons & REMOTE_BUTTON_MIDDLE);
166 input_report_key(dev, BTN_RIGHT, buttons & REMOTE_BUTTON_RIGHT);
167 input_sync(dev);
168 }
169
send_keyboard_event(struct input_dev * dev,struct remote_input * input)170 static void send_keyboard_event(struct input_dev *dev,
171 struct remote_input *input)
172 {
173 unsigned int key;
174 unsigned short code = input->data.keyboard.key_code;
175
176 if (code & 0xff00)
177 key = xlate_high[code & 0xff];
178 else
179 key = xlate[code];
180 input_report_key(dev, key, input->data.keyboard.key_down);
181 input_sync(dev);
182 }
183
ibmasm_handle_mouse_interrupt(struct service_processor * sp)184 void ibmasm_handle_mouse_interrupt(struct service_processor *sp)
185 {
186 unsigned long reader;
187 unsigned long writer;
188 struct remote_input input;
189
190 reader = get_queue_reader(sp);
191 writer = get_queue_writer(sp);
192
193 while (reader != writer) {
194 memcpy_fromio(&input, get_queue_entry(sp, reader),
195 sizeof(struct remote_input));
196
197 print_input(&input);
198 if (input.type == INPUT_TYPE_MOUSE) {
199 send_mouse_event(sp->remote.mouse_dev, &input);
200 } else if (input.type == INPUT_TYPE_KEYBOARD) {
201 send_keyboard_event(sp->remote.keybd_dev, &input);
202 } else
203 break;
204
205 reader = advance_queue_reader(sp, reader);
206 writer = get_queue_writer(sp);
207 }
208 }
209
ibmasm_init_remote_input_dev(struct service_processor * sp)210 int ibmasm_init_remote_input_dev(struct service_processor *sp)
211 {
212 /* set up the mouse input device */
213 struct input_dev *mouse_dev, *keybd_dev;
214 struct pci_dev *pdev = to_pci_dev(sp->dev);
215 int error = -ENOMEM;
216 int i;
217
218 sp->remote.mouse_dev = mouse_dev = input_allocate_device();
219 sp->remote.keybd_dev = keybd_dev = input_allocate_device();
220
221 if (!mouse_dev || !keybd_dev)
222 goto err_free_devices;
223
224 mouse_dev->id.bustype = BUS_PCI;
225 mouse_dev->id.vendor = pdev->vendor;
226 mouse_dev->id.product = pdev->device;
227 mouse_dev->id.version = 1;
228 mouse_dev->dev.parent = sp->dev;
229 mouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
230 mouse_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
231 BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
232 set_bit(BTN_TOUCH, mouse_dev->keybit);
233 mouse_dev->name = "ibmasm RSA I remote mouse";
234 input_set_abs_params(mouse_dev, ABS_X, 0, MOUSE_X_MAX, 0, 0);
235 input_set_abs_params(mouse_dev, ABS_Y, 0, MOUSE_Y_MAX, 0, 0);
236
237 keybd_dev->id.bustype = BUS_PCI;
238 keybd_dev->id.vendor = pdev->vendor;
239 keybd_dev->id.product = pdev->device;
240 keybd_dev->id.version = 2;
241 keybd_dev->dev.parent = sp->dev;
242 keybd_dev->evbit[0] = BIT_MASK(EV_KEY);
243 keybd_dev->name = "ibmasm RSA I remote keyboard";
244
245 for (i = 0; i < XLATE_SIZE; i++) {
246 if (xlate_high[i])
247 set_bit(xlate_high[i], keybd_dev->keybit);
248 if (xlate[i])
249 set_bit(xlate[i], keybd_dev->keybit);
250 }
251
252 error = input_register_device(mouse_dev);
253 if (error)
254 goto err_free_devices;
255
256 error = input_register_device(keybd_dev);
257 if (error)
258 goto err_unregister_mouse_dev;
259
260 enable_mouse_interrupts(sp);
261
262 printk(KERN_INFO "ibmasm remote responding to events on RSA card %d\n", sp->number);
263
264 return 0;
265
266 err_unregister_mouse_dev:
267 input_unregister_device(mouse_dev);
268 mouse_dev = NULL; /* so we don't try to free it again below */
269 err_free_devices:
270 input_free_device(mouse_dev);
271 input_free_device(keybd_dev);
272
273 return error;
274 }
275
ibmasm_free_remote_input_dev(struct service_processor * sp)276 void ibmasm_free_remote_input_dev(struct service_processor *sp)
277 {
278 disable_mouse_interrupts(sp);
279 input_unregister_device(sp->remote.mouse_dev);
280 input_unregister_device(sp->remote.keybd_dev);
281 }
282
283