1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * IBM ASM Service Processor Device Driver |
4 | * |
5 | * Copyright (C) IBM Corporation, 2004 |
6 | * |
7 | * Authors: Max Asböck <amax@us.ibm.com> |
8 | * Vernon Mauery <vernux@us.ibm.com> |
9 | */ |
10 | |
11 | /* Remote mouse and keyboard event handling functions */ |
12 | |
13 | #include <linux/pci.h> |
14 | #include "ibmasm.h" |
15 | #include "remote.h" |
16 | |
17 | #define MOUSE_X_MAX 1600 |
18 | #define MOUSE_Y_MAX 1200 |
19 | |
20 | static const unsigned short xlate_high[XLATE_SIZE] = { |
21 | [KEY_SYM_ENTER & 0xff] = KEY_ENTER, |
22 | [KEY_SYM_KPSLASH & 0xff] = KEY_KPSLASH, |
23 | [KEY_SYM_KPSTAR & 0xff] = KEY_KPASTERISK, |
24 | [KEY_SYM_KPMINUS & 0xff] = KEY_KPMINUS, |
25 | [KEY_SYM_KPDOT & 0xff] = KEY_KPDOT, |
26 | [KEY_SYM_KPPLUS & 0xff] = KEY_KPPLUS, |
27 | [KEY_SYM_KP0 & 0xff] = KEY_KP0, |
28 | [KEY_SYM_KP1 & 0xff] = KEY_KP1, |
29 | [KEY_SYM_KP2 & 0xff] = KEY_KP2, [KEY_SYM_KPDOWN & 0xff] = KEY_KP2, |
30 | [KEY_SYM_KP3 & 0xff] = KEY_KP3, |
31 | [KEY_SYM_KP4 & 0xff] = KEY_KP4, [KEY_SYM_KPLEFT & 0xff] = KEY_KP4, |
32 | [KEY_SYM_KP5 & 0xff] = KEY_KP5, |
33 | [KEY_SYM_KP6 & 0xff] = KEY_KP6, [KEY_SYM_KPRIGHT & 0xff] = KEY_KP6, |
34 | [KEY_SYM_KP7 & 0xff] = KEY_KP7, |
35 | [KEY_SYM_KP8 & 0xff] = KEY_KP8, [KEY_SYM_KPUP & 0xff] = KEY_KP8, |
36 | [KEY_SYM_KP9 & 0xff] = KEY_KP9, |
37 | [KEY_SYM_BK_SPC & 0xff] = KEY_BACKSPACE, |
38 | [KEY_SYM_TAB & 0xff] = KEY_TAB, |
39 | [KEY_SYM_CTRL & 0xff] = KEY_LEFTCTRL, |
40 | [KEY_SYM_ALT & 0xff] = KEY_LEFTALT, |
41 | [KEY_SYM_INSERT & 0xff] = KEY_INSERT, |
42 | [KEY_SYM_DELETE & 0xff] = KEY_DELETE, |
43 | [KEY_SYM_SHIFT & 0xff] = KEY_LEFTSHIFT, |
44 | [KEY_SYM_UARROW & 0xff] = KEY_UP, |
45 | [KEY_SYM_DARROW & 0xff] = KEY_DOWN, |
46 | [KEY_SYM_LARROW & 0xff] = KEY_LEFT, |
47 | [KEY_SYM_RARROW & 0xff] = KEY_RIGHT, |
48 | [KEY_SYM_ESCAPE & 0xff] = KEY_ESC, |
49 | [KEY_SYM_PAGEUP & 0xff] = KEY_PAGEUP, |
50 | [KEY_SYM_PAGEDOWN & 0xff] = KEY_PAGEDOWN, |
51 | [KEY_SYM_HOME & 0xff] = KEY_HOME, |
52 | [KEY_SYM_END & 0xff] = KEY_END, |
53 | [KEY_SYM_F1 & 0xff] = KEY_F1, |
54 | [KEY_SYM_F2 & 0xff] = KEY_F2, |
55 | [KEY_SYM_F3 & 0xff] = KEY_F3, |
56 | [KEY_SYM_F4 & 0xff] = KEY_F4, |
57 | [KEY_SYM_F5 & 0xff] = KEY_F5, |
58 | [KEY_SYM_F6 & 0xff] = KEY_F6, |
59 | [KEY_SYM_F7 & 0xff] = KEY_F7, |
60 | [KEY_SYM_F8 & 0xff] = KEY_F8, |
61 | [KEY_SYM_F9 & 0xff] = KEY_F9, |
62 | [KEY_SYM_F10 & 0xff] = KEY_F10, |
63 | [KEY_SYM_F11 & 0xff] = KEY_F11, |
64 | [KEY_SYM_F12 & 0xff] = KEY_F12, |
65 | [KEY_SYM_CAP_LOCK & 0xff] = KEY_CAPSLOCK, |
66 | [KEY_SYM_NUM_LOCK & 0xff] = KEY_NUMLOCK, |
67 | [KEY_SYM_SCR_LOCK & 0xff] = KEY_SCROLLLOCK, |
68 | }; |
69 | |
70 | static const unsigned short xlate[XLATE_SIZE] = { |
71 | [NO_KEYCODE] = KEY_RESERVED, |
72 | [KEY_SYM_SPACE] = KEY_SPACE, |
73 | [KEY_SYM_TILDE] = KEY_GRAVE, [KEY_SYM_BKTIC] = KEY_GRAVE, |
74 | [KEY_SYM_ONE] = KEY_1, [KEY_SYM_BANG] = KEY_1, |
75 | [KEY_SYM_TWO] = KEY_2, [KEY_SYM_AT] = KEY_2, |
76 | [KEY_SYM_THREE] = KEY_3, [KEY_SYM_POUND] = KEY_3, |
77 | [KEY_SYM_FOUR] = KEY_4, [KEY_SYM_DOLLAR] = KEY_4, |
78 | [KEY_SYM_FIVE] = KEY_5, [KEY_SYM_PERCENT] = KEY_5, |
79 | [KEY_SYM_SIX] = KEY_6, [KEY_SYM_CARAT] = KEY_6, |
80 | [KEY_SYM_SEVEN] = KEY_7, [KEY_SYM_AMPER] = KEY_7, |
81 | [KEY_SYM_EIGHT] = KEY_8, [KEY_SYM_STAR] = KEY_8, |
82 | [KEY_SYM_NINE] = KEY_9, [KEY_SYM_LPAREN] = KEY_9, |
83 | [KEY_SYM_ZERO] = KEY_0, [KEY_SYM_RPAREN] = KEY_0, |
84 | [KEY_SYM_MINUS] = KEY_MINUS, [KEY_SYM_USCORE] = KEY_MINUS, |
85 | [KEY_SYM_EQUAL] = KEY_EQUAL, [KEY_SYM_PLUS] = KEY_EQUAL, |
86 | [KEY_SYM_LBRKT] = KEY_LEFTBRACE, [KEY_SYM_LCURLY] = KEY_LEFTBRACE, |
87 | [KEY_SYM_RBRKT] = KEY_RIGHTBRACE, [KEY_SYM_RCURLY] = KEY_RIGHTBRACE, |
88 | [KEY_SYM_SLASH] = KEY_BACKSLASH, [KEY_SYM_PIPE] = KEY_BACKSLASH, |
89 | [KEY_SYM_TIC] = KEY_APOSTROPHE, [KEY_SYM_QUOTE] = KEY_APOSTROPHE, |
90 | [KEY_SYM_SEMIC] = KEY_SEMICOLON, [KEY_SYM_COLON] = KEY_SEMICOLON, |
91 | [KEY_SYM_COMMA] = KEY_COMMA, [KEY_SYM_LT] = KEY_COMMA, |
92 | [KEY_SYM_PERIOD] = KEY_DOT, [KEY_SYM_GT] = KEY_DOT, |
93 | [KEY_SYM_BSLASH] = KEY_SLASH, [KEY_SYM_QMARK] = KEY_SLASH, |
94 | [KEY_SYM_A] = KEY_A, [KEY_SYM_a] = KEY_A, |
95 | [KEY_SYM_B] = KEY_B, [KEY_SYM_b] = KEY_B, |
96 | [KEY_SYM_C] = KEY_C, [KEY_SYM_c] = KEY_C, |
97 | [KEY_SYM_D] = KEY_D, [KEY_SYM_d] = KEY_D, |
98 | [KEY_SYM_E] = KEY_E, [KEY_SYM_e] = KEY_E, |
99 | [KEY_SYM_F] = KEY_F, [KEY_SYM_f] = KEY_F, |
100 | [KEY_SYM_G] = KEY_G, [KEY_SYM_g] = KEY_G, |
101 | [KEY_SYM_H] = KEY_H, [KEY_SYM_h] = KEY_H, |
102 | [KEY_SYM_I] = KEY_I, [KEY_SYM_i] = KEY_I, |
103 | [KEY_SYM_J] = KEY_J, [KEY_SYM_j] = KEY_J, |
104 | [KEY_SYM_K] = KEY_K, [KEY_SYM_k] = KEY_K, |
105 | [KEY_SYM_L] = KEY_L, [KEY_SYM_l] = KEY_L, |
106 | [KEY_SYM_M] = KEY_M, [KEY_SYM_m] = KEY_M, |
107 | [KEY_SYM_N] = KEY_N, [KEY_SYM_n] = KEY_N, |
108 | [KEY_SYM_O] = KEY_O, [KEY_SYM_o] = KEY_O, |
109 | [KEY_SYM_P] = KEY_P, [KEY_SYM_p] = KEY_P, |
110 | [KEY_SYM_Q] = KEY_Q, [KEY_SYM_q] = KEY_Q, |
111 | [KEY_SYM_R] = KEY_R, [KEY_SYM_r] = KEY_R, |
112 | [KEY_SYM_S] = KEY_S, [KEY_SYM_s] = KEY_S, |
113 | [KEY_SYM_T] = KEY_T, [KEY_SYM_t] = KEY_T, |
114 | [KEY_SYM_U] = KEY_U, [KEY_SYM_u] = KEY_U, |
115 | [KEY_SYM_V] = KEY_V, [KEY_SYM_v] = KEY_V, |
116 | [KEY_SYM_W] = KEY_W, [KEY_SYM_w] = KEY_W, |
117 | [KEY_SYM_X] = KEY_X, [KEY_SYM_x] = KEY_X, |
118 | [KEY_SYM_Y] = KEY_Y, [KEY_SYM_y] = KEY_Y, |
119 | [KEY_SYM_Z] = KEY_Z, [KEY_SYM_z] = KEY_Z, |
120 | }; |
121 | |
122 | static void print_input(struct remote_input *input) |
123 | { |
124 | if (input->type == INPUT_TYPE_MOUSE) { |
125 | unsigned char buttons = input->mouse_buttons; |
126 | dbg("remote mouse movement: (x,y)=(%d,%d)%s%s%s%s\n" , |
127 | input->data.mouse.x, input->data.mouse.y, |
128 | (buttons) ? " -- buttons:" : "" , |
129 | (buttons & REMOTE_BUTTON_LEFT) ? "left " : "" , |
130 | (buttons & REMOTE_BUTTON_MIDDLE) ? "middle " : "" , |
131 | (buttons & REMOTE_BUTTON_RIGHT) ? "right" : "" |
132 | ); |
133 | } else { |
134 | dbg("remote keypress (code, flag, down):" |
135 | "%d (0x%x) [0x%x] [0x%x]\n" , |
136 | input->data.keyboard.key_code, |
137 | input->data.keyboard.key_code, |
138 | input->data.keyboard.key_flag, |
139 | input->data.keyboard.key_down |
140 | ); |
141 | } |
142 | } |
143 | |
144 | static void send_mouse_event(struct input_dev *dev, struct remote_input *input) |
145 | { |
146 | unsigned char buttons = input->mouse_buttons; |
147 | |
148 | input_report_abs(dev, ABS_X, value: input->data.mouse.x); |
149 | input_report_abs(dev, ABS_Y, value: input->data.mouse.y); |
150 | input_report_key(dev, BTN_LEFT, value: buttons & REMOTE_BUTTON_LEFT); |
151 | input_report_key(dev, BTN_MIDDLE, value: buttons & REMOTE_BUTTON_MIDDLE); |
152 | input_report_key(dev, BTN_RIGHT, value: buttons & REMOTE_BUTTON_RIGHT); |
153 | input_sync(dev); |
154 | } |
155 | |
156 | static void send_keyboard_event(struct input_dev *dev, |
157 | struct remote_input *input) |
158 | { |
159 | unsigned int key; |
160 | unsigned short code = input->data.keyboard.key_code; |
161 | |
162 | if (code & 0xff00) |
163 | key = xlate_high[code & 0xff]; |
164 | else |
165 | key = xlate[code]; |
166 | input_report_key(dev, code: key, value: input->data.keyboard.key_down); |
167 | input_sync(dev); |
168 | } |
169 | |
170 | void ibmasm_handle_mouse_interrupt(struct service_processor *sp) |
171 | { |
172 | unsigned long reader; |
173 | unsigned long writer; |
174 | struct remote_input input; |
175 | |
176 | reader = get_queue_reader(sp); |
177 | writer = get_queue_writer(sp); |
178 | |
179 | while (reader != writer) { |
180 | memcpy_fromio(&input, get_queue_entry(sp, reader), |
181 | sizeof(struct remote_input)); |
182 | |
183 | print_input(input: &input); |
184 | if (input.type == INPUT_TYPE_MOUSE) { |
185 | send_mouse_event(dev: sp->remote.mouse_dev, input: &input); |
186 | } else if (input.type == INPUT_TYPE_KEYBOARD) { |
187 | send_keyboard_event(dev: sp->remote.keybd_dev, input: &input); |
188 | } else |
189 | break; |
190 | |
191 | reader = advance_queue_reader(sp, reader); |
192 | writer = get_queue_writer(sp); |
193 | } |
194 | } |
195 | |
196 | int ibmasm_init_remote_input_dev(struct service_processor *sp) |
197 | { |
198 | /* set up the mouse input device */ |
199 | struct input_dev *mouse_dev, *keybd_dev; |
200 | struct pci_dev *pdev = to_pci_dev(sp->dev); |
201 | int error = -ENOMEM; |
202 | int i; |
203 | |
204 | sp->remote.mouse_dev = mouse_dev = input_allocate_device(); |
205 | sp->remote.keybd_dev = keybd_dev = input_allocate_device(); |
206 | |
207 | if (!mouse_dev || !keybd_dev) |
208 | goto err_free_devices; |
209 | |
210 | mouse_dev->id.bustype = BUS_PCI; |
211 | mouse_dev->id.vendor = pdev->vendor; |
212 | mouse_dev->id.product = pdev->device; |
213 | mouse_dev->id.version = 1; |
214 | mouse_dev->dev.parent = sp->dev; |
215 | mouse_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); |
216 | mouse_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) | |
217 | BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE); |
218 | set_bit(BTN_TOUCH, addr: mouse_dev->keybit); |
219 | mouse_dev->name = "ibmasm RSA I remote mouse" ; |
220 | input_set_abs_params(dev: mouse_dev, ABS_X, min: 0, MOUSE_X_MAX, fuzz: 0, flat: 0); |
221 | input_set_abs_params(dev: mouse_dev, ABS_Y, min: 0, MOUSE_Y_MAX, fuzz: 0, flat: 0); |
222 | |
223 | keybd_dev->id.bustype = BUS_PCI; |
224 | keybd_dev->id.vendor = pdev->vendor; |
225 | keybd_dev->id.product = pdev->device; |
226 | keybd_dev->id.version = 2; |
227 | keybd_dev->dev.parent = sp->dev; |
228 | keybd_dev->evbit[0] = BIT_MASK(EV_KEY); |
229 | keybd_dev->name = "ibmasm RSA I remote keyboard" ; |
230 | |
231 | for (i = 0; i < XLATE_SIZE; i++) { |
232 | if (xlate_high[i]) |
233 | set_bit(nr: xlate_high[i], addr: keybd_dev->keybit); |
234 | if (xlate[i]) |
235 | set_bit(nr: xlate[i], addr: keybd_dev->keybit); |
236 | } |
237 | |
238 | error = input_register_device(mouse_dev); |
239 | if (error) |
240 | goto err_free_devices; |
241 | |
242 | error = input_register_device(keybd_dev); |
243 | if (error) |
244 | goto err_unregister_mouse_dev; |
245 | |
246 | enable_mouse_interrupts(sp); |
247 | |
248 | printk(KERN_INFO "ibmasm remote responding to events on RSA card %d\n" , sp->number); |
249 | |
250 | return 0; |
251 | |
252 | err_unregister_mouse_dev: |
253 | input_unregister_device(mouse_dev); |
254 | mouse_dev = NULL; /* so we don't try to free it again below */ |
255 | err_free_devices: |
256 | input_free_device(dev: mouse_dev); |
257 | input_free_device(dev: keybd_dev); |
258 | |
259 | return error; |
260 | } |
261 | |
262 | void ibmasm_free_remote_input_dev(struct service_processor *sp) |
263 | { |
264 | disable_mouse_interrupts(sp); |
265 | input_unregister_device(sp->remote.mouse_dev); |
266 | input_unregister_device(sp->remote.keybd_dev); |
267 | } |
268 | |
269 | |