xref: /openbmc/linux/drivers/misc/ibmasm/remote.h (revision 1da177e4)
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 Asb�ck <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_ */
120