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path: root/drivers/misc/ibmasm/remote.c
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Diffstat (limited to 'drivers/misc/ibmasm/remote.c')
-rw-r--r--drivers/misc/ibmasm/remote.c304
1 files changed, 212 insertions, 92 deletions
diff --git a/drivers/misc/ibmasm/remote.c b/drivers/misc/ibmasm/remote.c
index 520c3f10c271..d3c48d23ee51 100644
--- a/drivers/misc/ibmasm/remote.c
+++ b/drivers/misc/ibmasm/remote.c
@@ -1,4 +1,3 @@
1
2/* 1/*
3 * IBM ASM Service Processor Device Driver 2 * IBM ASM Service Processor Device Driver
4 * 3 *
@@ -18,135 +17,256 @@
18 * 17 *
19 * Copyright (C) IBM Corporation, 2004 18 * Copyright (C) IBM Corporation, 2004
20 * 19 *
21 * Author: Max Asböck <amax@us.ibm.com> 20 * Authors: Max Asböck <amax@us.ibm.com>
21 * Vernon Mauery <vernux@us.ibm.com>
22 * 22 *
23 */ 23 */
24 24
25/* Remote mouse and keyboard event handling functions */ 25/* Remote mouse and keyboard event handling functions */
26 26
27#include <linux/pci.h>
27#include "ibmasm.h" 28#include "ibmasm.h"
28#include "remote.h" 29#include "remote.h"
29 30
30int ibmasm_init_remote_queue(struct service_processor *sp) 31static int xmax = 1600;
31{ 32static int ymax = 1200;
32 struct remote_queue *q = &sp->remote_queue;
33
34 disable_mouse_interrupts(sp);
35 33
36 q->open = 0;
37 q->size = 0;
38 34
39 q->start = kmalloc(DRIVER_REMOTE_QUEUE_SIZE * sizeof(struct remote_event), GFP_KERNEL); 35static unsigned short xlate_high[XLATE_SIZE] = {
40 if (q->start == 0) 36 [KEY_SYM_ENTER & 0xff] = KEY_ENTER,
41 return -ENOMEM; 37 [KEY_SYM_KPSLASH & 0xff] = KEY_KPSLASH,
38 [KEY_SYM_KPSTAR & 0xff] = KEY_KPASTERISK,
39 [KEY_SYM_KPMINUS & 0xff] = KEY_KPMINUS,
40 [KEY_SYM_KPDOT & 0xff] = KEY_KPDOT,
41 [KEY_SYM_KPPLUS & 0xff] = KEY_KPPLUS,
42 [KEY_SYM_KP0 & 0xff] = KEY_KP0,
43 [KEY_SYM_KP1 & 0xff] = KEY_KP1,
44 [KEY_SYM_KP2 & 0xff] = KEY_KP2, [KEY_SYM_KPDOWN & 0xff] = KEY_KP2,
45 [KEY_SYM_KP3 & 0xff] = KEY_KP3,
46 [KEY_SYM_KP4 & 0xff] = KEY_KP4, [KEY_SYM_KPLEFT & 0xff] = KEY_KP4,
47 [KEY_SYM_KP5 & 0xff] = KEY_KP5,
48 [KEY_SYM_KP6 & 0xff] = KEY_KP6, [KEY_SYM_KPRIGHT & 0xff] = KEY_KP6,
49 [KEY_SYM_KP7 & 0xff] = KEY_KP7,
50 [KEY_SYM_KP8 & 0xff] = KEY_KP8, [KEY_SYM_KPUP & 0xff] = KEY_KP8,
51 [KEY_SYM_KP9 & 0xff] = KEY_KP9,
52 [KEY_SYM_BK_SPC & 0xff] = KEY_BACKSPACE,
53 [KEY_SYM_TAB & 0xff] = KEY_TAB,
54 [KEY_SYM_CTRL & 0xff] = KEY_LEFTCTRL,
55 [KEY_SYM_ALT & 0xff] = KEY_LEFTALT,
56 [KEY_SYM_INSERT & 0xff] = KEY_INSERT,
57 [KEY_SYM_DELETE & 0xff] = KEY_DELETE,
58 [KEY_SYM_SHIFT & 0xff] = KEY_LEFTSHIFT,
59 [KEY_SYM_UARROW & 0xff] = KEY_UP,
60 [KEY_SYM_DARROW & 0xff] = KEY_DOWN,
61 [KEY_SYM_LARROW & 0xff] = KEY_LEFT,
62 [KEY_SYM_RARROW & 0xff] = KEY_RIGHT,
63 [KEY_SYM_ESCAPE & 0xff] = KEY_ESC,
64 [KEY_SYM_PAGEUP & 0xff] = KEY_PAGEUP,
65 [KEY_SYM_PAGEDOWN & 0xff] = KEY_PAGEDOWN,
66 [KEY_SYM_HOME & 0xff] = KEY_HOME,
67 [KEY_SYM_END & 0xff] = KEY_END,
68 [KEY_SYM_F1 & 0xff] = KEY_F1,
69 [KEY_SYM_F2 & 0xff] = KEY_F2,
70 [KEY_SYM_F3 & 0xff] = KEY_F3,
71 [KEY_SYM_F4 & 0xff] = KEY_F4,
72 [KEY_SYM_F5 & 0xff] = KEY_F5,
73 [KEY_SYM_F6 & 0xff] = KEY_F6,
74 [KEY_SYM_F7 & 0xff] = KEY_F7,
75 [KEY_SYM_F8 & 0xff] = KEY_F8,
76 [KEY_SYM_F9 & 0xff] = KEY_F9,
77 [KEY_SYM_F10 & 0xff] = KEY_F10,
78 [KEY_SYM_F11 & 0xff] = KEY_F11,
79 [KEY_SYM_F12 & 0xff] = KEY_F12,
80 [KEY_SYM_CAP_LOCK & 0xff] = KEY_CAPSLOCK,
81 [KEY_SYM_NUM_LOCK & 0xff] = KEY_NUMLOCK,
82 [KEY_SYM_SCR_LOCK & 0xff] = KEY_SCROLLLOCK,
83};
84static 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};
42 135
43 q->end = q->start + DRIVER_REMOTE_QUEUE_SIZE; 136static char remote_mouse_name[] = "ibmasm RSA I remote mouse";
44 q->reader = q->start; 137static char remote_keybd_name[] = "ibmasm RSA I remote keyboard";
45 q->writer = q->start;
46 q->size = DRIVER_REMOTE_QUEUE_SIZE;
47 init_waitqueue_head(&q->wait);
48 138
49 return 0; 139static void print_input(struct remote_input *input)
50}
51
52void ibmasm_free_remote_queue(struct service_processor *sp)
53{ 140{
54 kfree(sp->remote_queue.start); 141 if (input->type == INPUT_TYPE_MOUSE) {
142 unsigned char buttons = input->mouse_buttons;
143 dbg("remote mouse movement: (x,y)=(%d,%d)%s%s%s%s\n",
144 input->data.mouse.x, input->data.mouse.y,
145 (buttons)?" -- buttons:":"",
146 (buttons & REMOTE_BUTTON_LEFT)?"left ":"",
147 (buttons & REMOTE_BUTTON_MIDDLE)?"middle ":"",
148 (buttons & REMOTE_BUTTON_RIGHT)?"right":""
149 );
150 } else {
151 dbg("remote keypress (code, flag, down):"
152 "%d (0x%x) [0x%x] [0x%x]\n",
153 input->data.keyboard.key_code,
154 input->data.keyboard.key_code,
155 input->data.keyboard.key_flag,
156 input->data.keyboard.key_down
157 );
158 }
55} 159}
56 160
57void ibmasm_advance_reader(struct remote_queue *q, unsigned int n) 161static void send_mouse_event(struct input_dev *dev, struct pt_regs *regs,
162 struct remote_input *input)
58{ 163{
59 q->reader += n; 164 unsigned char buttons = input->mouse_buttons;
60 if (q->reader >= q->end)
61 q->reader -= q->size;
62}
63 165
64size_t ibmasm_events_available(struct remote_queue *q) 166 input_regs(dev, regs);
65{ 167 input_report_abs(dev, ABS_X, input->data.mouse.x);
66 ssize_t diff = q->writer - q->reader; 168 input_report_abs(dev, ABS_Y, input->data.mouse.y);
67 169 input_report_key(dev, BTN_LEFT, buttons & REMOTE_BUTTON_LEFT);
68 return (diff >= 0) ? diff : q->end - q->reader; 170 input_report_key(dev, BTN_MIDDLE, buttons & REMOTE_BUTTON_MIDDLE);
171 input_report_key(dev, BTN_RIGHT, buttons & REMOTE_BUTTON_RIGHT);
172 input_sync(dev);
69} 173}
70
71 174
72static int space_free(struct remote_queue *q) 175static void send_keyboard_event(struct input_dev *dev, struct pt_regs *regs,
176 struct remote_input *input)
73{ 177{
74 if (q->reader == q->writer) 178 unsigned int key;
75 return q->size - 1; 179 unsigned short code = input->data.keyboard.key_code;
76 180
77 return ( (q->reader + q->size - q->writer) % q->size ) - 1; 181 if (code & 0xff00)
182 key = xlate_high[code & 0xff];
183 else
184 key = xlate[code];
185 input_regs(dev, regs);
186 input_report_key(dev, key, (input->data.keyboard.key_down) ? 1 : 0);
187 input_sync(dev);
78} 188}
79 189
80static void set_mouse_event(struct remote_input *input, struct mouse_event *mouse) 190void ibmasm_handle_mouse_interrupt(struct service_processor *sp,
191 struct pt_regs *regs)
81{ 192{
82 static char last_buttons = 0; 193 unsigned long reader;
194 unsigned long writer;
195 struct remote_input input;
83 196
84 mouse->x = input->data.mouse.x; 197 reader = get_queue_reader(sp);
85 mouse->y = input->data.mouse.y; 198 writer = get_queue_writer(sp);
86 199
87 if (input->mouse_buttons == REMOTE_MOUSE_DOUBLE_CLICK) { 200 while (reader != writer) {
88 mouse->buttons = REMOTE_MOUSE_DOUBLE_CLICK; 201 memcpy_fromio(&input, get_queue_entry(sp, reader),
89 last_buttons = 0; 202 sizeof(struct remote_input));
90 return;
91 }
92 mouse->transitions = last_buttons ^ input->mouse_buttons;
93 mouse->buttons = input->mouse_buttons;
94 203
95 last_buttons = input->mouse_buttons; 204 print_input(&input);
96} 205 if (input.type == INPUT_TYPE_MOUSE) {
206 send_mouse_event(&sp->remote->mouse_dev, regs, &input);
207 } else if (input.type == INPUT_TYPE_KEYBOARD) {
208 send_keyboard_event(&sp->remote->keybd_dev, regs, &input);
209 } else
210 break;
97 211
98static void set_keyboard_event(struct remote_input *input, struct keyboard_event *keyboard) 212 reader = advance_queue_reader(sp, reader);
99{ 213 writer = get_queue_writer(sp);
100 keyboard->key_code = input->data.keyboard.key_code; 214 }
101 keyboard->key_down = input->data.keyboard.key_down;
102} 215}
103 216
104static int add_to_driver_queue(struct remote_queue *q, struct remote_input *input) 217int ibmasm_init_remote_input_dev(struct service_processor *sp)
105{ 218{
106 struct remote_event *event = q->writer; 219 /* set up the mouse input device */
220 struct ibmasm_remote *remote;
221 struct pci_dev *pdev = to_pci_dev(sp->dev);
222 int i;
107 223
108 if (space_free(q) < 1) { 224 sp->remote = remote = kmalloc(sizeof(*remote), GFP_KERNEL);
109 return 1; 225 if (!remote)
110 } 226 return -ENOMEM;
111 227
112 switch(input->type) { 228 memset(remote, 0, sizeof(*remote));
113 case (INPUT_TYPE_MOUSE):
114 event->type = INPUT_TYPE_MOUSE;
115 set_mouse_event(input, &event->data.mouse);
116 break;
117 case (INPUT_TYPE_KEYBOARD):
118 event->type = INPUT_TYPE_KEYBOARD;
119 set_keyboard_event(input, &event->data.keyboard);
120 break;
121 default:
122 return 0;
123 }
124 event->type = input->type;
125 229
126 q->writer++; 230 remote->mouse_dev.private = remote;
127 if (q->writer == q->end) 231 init_input_dev(&remote->mouse_dev);
128 q->writer = q->start; 232 remote->mouse_dev.id.vendor = pdev->vendor;
233 remote->mouse_dev.id.product = pdev->device;
234 remote->mouse_dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
235 remote->mouse_dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) |
236 BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
237 set_bit(BTN_TOUCH, remote->mouse_dev.keybit);
238 remote->mouse_dev.name = remote_mouse_name;
239 input_set_abs_params(&remote->mouse_dev, ABS_X, 0, xmax, 0, 0);
240 input_set_abs_params(&remote->mouse_dev, ABS_Y, 0, ymax, 0, 0);
129 241
130 return 0; 242 remote->keybd_dev.private = remote;
131} 243 init_input_dev(&remote->keybd_dev);
132 244 remote->keybd_dev.id.vendor = pdev->vendor;
245 remote->keybd_dev.id.product = pdev->device;
246 remote->keybd_dev.evbit[0] = BIT(EV_KEY);
247 remote->keybd_dev.name = remote_keybd_name;
133 248
134void ibmasm_handle_mouse_interrupt(struct service_processor *sp) 249 for (i=0; i<XLATE_SIZE; i++) {
135{ 250 if (xlate_high[i])
136 unsigned long reader; 251 set_bit(xlate_high[i], remote->keybd_dev.keybit);
137 unsigned long writer; 252 if (xlate[i])
138 struct remote_input input; 253 set_bit(xlate[i], remote->keybd_dev.keybit);
254 }
139 255
140 reader = get_queue_reader(sp); 256 input_register_device(&remote->mouse_dev);
141 writer = get_queue_writer(sp); 257 input_register_device(&remote->keybd_dev);
258 enable_mouse_interrupts(sp);
142 259
143 while (reader != writer) { 260 printk(KERN_INFO "ibmasm remote responding to events on RSA card %d\n", sp->number);
144 memcpy(&input, (void *)get_queue_entry(sp, reader), sizeof(struct remote_input));
145 261
146 if (add_to_driver_queue(&sp->remote_queue, &input)) 262 return 0;
147 break; 263}
148 264
149 reader = advance_queue_reader(sp, reader); 265void ibmasm_free_remote_input_dev(struct service_processor *sp)
150 } 266{
151 wake_up_interruptible(&sp->remote_queue.wait); 267 disable_mouse_interrupts(sp);
268 input_unregister_device(&sp->remote->keybd_dev);
269 input_unregister_device(&sp->remote->mouse_dev);
270 kfree(sp->remote);
152} 271}
272
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