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 Asb��ck <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 20static 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 70static 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 122static 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 144static 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, input->data.mouse.x); 149 input_report_abs(dev, ABS_Y, input->data.mouse.y); 150 input_report_key(dev, BTN_LEFT, buttons & REMOTE_BUTTON_LEFT); 151 input_report_key(dev, BTN_MIDDLE, buttons & REMOTE_BUTTON_MIDDLE); 152 input_report_key(dev, BTN_RIGHT, buttons & REMOTE_BUTTON_RIGHT); 153 input_sync(dev); 154} 155 156static 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, key, input->data.keyboard.key_down); 167 input_sync(dev); 168} 169 170void 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); 184 if (input.type == INPUT_TYPE_MOUSE) { 185 send_mouse_event(sp->remote.mouse_dev, &input); 186 } else if (input.type == INPUT_TYPE_KEYBOARD) { 187 send_keyboard_event(sp->remote.keybd_dev, &input); 188 } else 189 break; 190 191 reader = advance_queue_reader(sp, reader); 192 writer = get_queue_writer(sp); 193 } 194} 195 196int 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, mouse_dev->keybit); 219 mouse_dev->name = "ibmasm RSA I remote mouse"; 220 input_set_abs_params(mouse_dev, ABS_X, 0, MOUSE_X_MAX, 0, 0); 221 input_set_abs_params(mouse_dev, ABS_Y, 0, MOUSE_Y_MAX, 0, 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(xlate_high[i], keybd_dev->keybit); 234 if (xlate[i]) 235 set_bit(xlate[i], 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(mouse_dev); 257 input_free_device(keybd_dev); 258 259 return error; 260} 261 262void 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