aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/char/lcd.h
blob: 878a95280e877abbcbc333b999f04383dd095b2a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
/*
 * LED, LCD and Button panel driver for Cobalt
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1996, 1997 by Andrew Bose
 *
 * Linux kernel version history:
 *       March 2001: Ported from 2.0.34  by Liam Davies
 *
 */

// function headers

static int dqpoll(volatile unsigned long, volatile unsigned char );
static int timeout(volatile unsigned long);

#define LCD_CHARS_PER_LINE 40
#define FLASH_SIZE 524288
#define MAX_IDLE_TIME 120

struct lcd_display {
        unsigned long buttons;
        int size1;
        int size2;
        unsigned char line1[LCD_CHARS_PER_LINE];
        unsigned char line2[LCD_CHARS_PER_LINE];
        unsigned char cursor_address;
        unsigned char character;
        unsigned char leds;
        unsigned char *RomImage;
};



#define LCD_DRIVER	"Cobalt LCD Driver v2.10"

#define LCD		"lcd: "

#define kLCD_IR		0x0F000000
#define kLCD_DR		0x0F000010
#define kGPI		0x0D000000
#define kLED		0x0C000000

#define kDD_R00         0x00
#define kDD_R01         0x27
#define kDD_R10         0x40
#define kDD_R11         0x67

#define kLCD_Addr       0x00000080

#define LCDTimeoutValue	0xfff


// Flash definitions AMD 29F040
#define kFlashBase	0x0FC00000

#define kFlash_Addr1    0x5555
#define kFlash_Addr2    0x2AAA
#define kFlash_Data1    0xAA
#define kFlash_Data2    0x55
#define kFlash_Prog     0xA0
#define kFlash_Erase3   0x80
#define kFlash_Erase6   0x10
#define kFlash_Read     0xF0

#define kFlash_ID       0x90
#define kFlash_VenAddr  0x00
#define kFlash_DevAddr  0x01
#define kFlash_VenID    0x01
#define kFlash_DevID    0xA4    // 29F040
//#define kFlash_DevID  0xAD    // 29F016


// Macros

#define LCDWriteData(x)	outl((x << 24), kLCD_DR)
#define LCDWriteInst(x)	outl((x << 24), kLCD_IR)

#define LCDReadData	(inl(kLCD_DR) >> 24)
#define LCDReadInst	(inl(kLCD_IR) >> 24)

#define GPIRead		(inl(kGPI) >> 24)

#define LEDSet(x)	outb((char)x, kLED)

#define WRITE_GAL(x,y)	outl(y, 0x04000000 | (x))
#define BusyCheck()	while ((LCDReadInst & 0x80) == 0x80)

#define WRITE_FLASH(x,y) outb((char)y, kFlashBase | (x))
#define READ_FLASH(x)	(inb(kFlashBase | (x)))



/*
 * Function command codes for io_ctl.
 */
#define LCD_On			1
#define LCD_Off			2
#define LCD_Clear		3
#define LCD_Reset		4
#define LCD_Cursor_Left		5
#define LCD_Cursor_Right	6
#define LCD_Disp_Left		7
#define LCD_Disp_Right		8
#define LCD_Get_Cursor		9
#define LCD_Set_Cursor		10
#define LCD_Home		11
#define LCD_Read		12
#define LCD_Write		13
#define LCD_Cursor_Off		14
#define LCD_Cursor_On		15
#define LCD_Get_Cursor_Pos	16
#define LCD_Set_Cursor_Pos	17
#define LCD_Blink_Off           18

#define LED_Set			40
#define LED_Bit_Set		41
#define LED_Bit_Clear		42


//  Button defs
#define BUTTON_Read             50

//  Flash command codes
#define FLASH_Erase		60
#define FLASH_Burn		61
#define FLASH_Read		62


// Ethernet LINK check hackaroo
#define LINK_Check              90
#define LINK_Check_2		91

//  Button patterns  _B - single layer lcd boards

#define BUTTON_NONE               0x3F
#define BUTTON_NONE_B             0xFE

#define BUTTON_Left               0x3B
#define BUTTON_Left_B             0xFA

#define BUTTON_Right              0x37
#define BUTTON_Right_B            0xDE

#define BUTTON_Up                 0x2F
#define BUTTON_Up_B               0xF6

#define BUTTON_Down               0x1F
#define BUTTON_Down_B             0xEE

#define BUTTON_Next               0x3D
#define BUTTON_Next_B             0x7E

#define BUTTON_Enter              0x3E
#define BUTTON_Enter_B            0xBE

#define BUTTON_Reset_B            0xFC


// debounce constants

#define BUTTON_SENSE            160000
#define BUTTON_DEBOUNCE		5000


//  Galileo register stuff

#define kGal_DevBank2Cfg        0x1466DB33
#define kGal_DevBank2PReg       0x464
#define kGal_DevBank3Cfg        0x146FDFFB
#define kGal_DevBank3PReg       0x468

// Network

#define kIPADDR			1
#define kNETMASK		2
#define kGATEWAY		3
#define kDNS			4

#define kClassA			5
#define kClassB			6
#define kClassC			7