drivers/misc/ibmasm/remote.h

   1
   2 /*
   3  * IBM ASM Service Processor Device Driver
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  *
  19  * Copyright (C) IBM Corporation, 2004
  20  *
  21  * Author: Max Asböck <amax@us.ibm.com>
  22  *
  23  * Orignally written by Pete Reynolds
  24  */
  25
  26 #ifndef _IBMASM_REMOTE_H_
  27 #define _IBMASM_REMOTE_H_
  28
  29 #include <asm/io.h>
  30
  31 /* pci offsets */
  32 #define CONDOR_MOUSE_DATA               0x000AC000
  33 #define CONDOR_MOUSE_ISR_CONTROL        0x00
  34 #define CONDOR_MOUSE_ISR_STATUS         0x04
  35 #define CONDOR_MOUSE_Q_READER           0x08
  36 #define CONDOR_MOUSE_Q_WRITER           0x0C
  37 #define CONDOR_MOUSE_Q_BEGIN            0x10
  38 #define CONDOR_MOUSE_MAX_X              0x14
  39 #define CONDOR_MOUSE_MAX_Y              0x18
  40
  41 #define CONDOR_INPUT_DESKTOP_INFO       0x1F0
  42 #define CONDOR_INPUT_DISPLAY_RESX       0x1F4
  43 #define CONDOR_INPUT_DISPLAY_RESY       0x1F8
  44 #define CONDOR_INPUT_DISPLAY_BITS       0x1FC
  45 #define CONDOR_OUTPUT_VNC_STATUS        0x200
  46
  47 #define CONDOR_MOUSE_INTR_STATUS_MASK   0x00000001
  48
  49 #define INPUT_TYPE_MOUSE        0x1
  50 #define INPUT_TYPE_KEYBOARD     0x2
  51
  52
  53 /* mouse button states received from SP */
  54 #define REMOTE_MOUSE_DOUBLE_CLICK       0xF0
  55 #define REMOTE_MOUSE_BUTTON_LEFT        0x01
  56 #define REMOTE_MOUSE_BUTTON_MIDDLE      0x02
  57 #define REMOTE_MOUSE_BUTTON_RIGHT       0x04
  58
  59
  60 struct mouse_input {
  61         unsigned short  y;
  62         unsigned short  x;
  63 };
  64
  65
  66 struct keyboard_input {
  67         unsigned short  key_code;
  68         unsigned char   key_flag;
  69         unsigned char   key_down;
  70 };
  71
  72
  73
  74 struct remote_input {
  75         union {
  76                 struct mouse_input      mouse;
  77                 struct keyboard_input   keyboard;
  78         } data;
  79
  80         unsigned char   type;
  81         unsigned char   pad1;
  82         unsigned char   mouse_buttons;
  83         unsigned char   pad3;
  84 };
  85
  86 #define mouse_addr(sp)          sp->base_address + CONDOR_MOUSE_DATA
  87 #define display_width(sp)       mouse_addr(sp) + CONDOR_INPUT_DISPLAY_RESX
  88 #define display_height(sp)      mouse_addr(sp) + CONDOR_INPUT_DISPLAY_RESY
  89 #define display_depth(sp)       mouse_addr(sp) + CONDOR_INPUT_DISPLAY_BITS
  90 #define vnc_status(sp)          mouse_addr(sp) + CONDOR_OUTPUT_VNC_STATUS
  91
  92 #define mouse_interrupt_pending(sp)     readl(mouse_addr(sp) + CONDOR_MOUSE_ISR_STATUS)
  93 #define clear_mouse_interrupt(sp)       writel(0, mouse_addr(sp) + CONDOR_MOUSE_ISR_STATUS)
  94 #define enable_mouse_interrupts(sp)     writel(1, mouse_addr(sp) + CONDOR_MOUSE_ISR_CONTROL)
  95 #define disable_mouse_interrupts(sp)    writel(0, mouse_addr(sp) + CONDOR_MOUSE_ISR_CONTROL)
  96
  97 /* remote input queue operations */
  98 #define REMOTE_QUEUE_SIZE       60
  99
 100 #define get_queue_writer(sp)    readl(mouse_addr(sp) + CONDOR_MOUSE_Q_WRITER)
 101 #define get_queue_reader(sp)    readl(mouse_addr(sp) + CONDOR_MOUSE_Q_READER)
 102 #define set_queue_reader(sp, reader)    writel(reader, mouse_addr(sp) + CONDOR_MOUSE_Q_READER)
 103
 104 #define queue_begin     mouse_addr(sp) + CONDOR_MOUSE_Q_BEGIN
 105
 106 #define get_queue_entry(sp, read_index) \
 107         queue_begin + read_index * sizeof(struct remote_input)
 108
 109 static inline int advance_queue_reader(struct service_processor *sp, unsigned long reader)
 110 {
 111         reader++;
 112         if (reader == REMOTE_QUEUE_SIZE)
 113                 reader = 0;
 114
 115         set_queue_reader(sp, reader);
 116         return reader;
 117 }
 118
 119 #endif /* _IBMASM_REMOTE_H_ */