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author | Jens Arnold <amiconn@rockbox.org> | 2007-03-05 00:04:00 +0000 |
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committer | Jens Arnold <amiconn@rockbox.org> | 2007-03-05 00:04:00 +0000 |
commit | 8876018d25c6a56cce118482c1372bbff344cb23 (patch) | |
tree | a66dca10bf92674c655b9862fd366ecc77bba76a /firmware/target/coldfire/iaudio/m5/lcd-m5.c | |
parent | ee07215d506def8d3483f4adf6e1d4ae51c10c52 (diff) | |
download | rockbox-8876018d25c6a56cce118482c1372bbff344cb23.tar.gz rockbox-8876018d25c6a56cce118482c1372bbff344cb23.zip |
Bring up the M5 port to a working stage: Extended numerous explicit checks for IAUDIO_X5 to also check for IAUDIO_M5, moved code around the target tree, added preliminary background for the sim.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12610 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/coldfire/iaudio/m5/lcd-m5.c')
-rw-r--r-- | firmware/target/coldfire/iaudio/m5/lcd-m5.c | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/firmware/target/coldfire/iaudio/m5/lcd-m5.c b/firmware/target/coldfire/iaudio/m5/lcd-m5.c new file mode 100644 index 0000000000..2af46b3145 --- /dev/null +++ b/firmware/target/coldfire/iaudio/m5/lcd-m5.c | |||
@@ -0,0 +1,219 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2007 by Jens Arnold | ||
11 | * | ||
12 | * All files in this archive are subject to the GNU General Public License. | ||
13 | * See the file COPYING in the source tree root for full license agreement. | ||
14 | * | ||
15 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
16 | * KIND, either express or implied. | ||
17 | * | ||
18 | ****************************************************************************/ | ||
19 | #include "config.h" | ||
20 | |||
21 | #include "system.h" | ||
22 | #include "kernel.h" | ||
23 | #include "lcd.h" | ||
24 | |||
25 | /*** definitions ***/ | ||
26 | |||
27 | /* LCD command codes */ | ||
28 | #define LCD_CNTL_POWER_CONTROL 0x25 | ||
29 | #define LCD_CNTL_VOLTAGE_SELECT 0x2b | ||
30 | #define LCD_CNTL_LINE_INVERT_DRIVE 0x36 | ||
31 | #define LCD_CNTL_GRAY_SCALE_PATTERN 0x39 | ||
32 | #define LCD_CNTL_TEMP_GRADIENT_SELECT 0x4e | ||
33 | #define LCD_CNTL_OSC_FREQUENCY 0x5f | ||
34 | #define LCD_CNTL_ON_OFF 0xae | ||
35 | #define LCD_CNTL_OSC_ON_OFF 0xaa | ||
36 | #define LCD_CNTL_OFF_MODE 0xbe | ||
37 | #define LCD_CNTL_POWER_SAVE 0xa8 | ||
38 | #define LCD_CNTL_REVERSE 0xa6 | ||
39 | #define LCD_CNTL_ALL_LIGHTING 0xa4 | ||
40 | #define LCD_CNTL_COMMON_OUTPUT_STATUS 0xc4 | ||
41 | #define LCD_CNTL_COLUMN_ADDRESS_DIR 0xa0 | ||
42 | #define LCD_CNTL_NLINE_ON_OFF 0xe4 | ||
43 | #define LCD_CNTL_DISPLAY_MODE 0x66 | ||
44 | #define LCD_CNTL_DUTY_SET 0x6d | ||
45 | #define LCD_CNTL_ELECTRONIC_VOLUME 0x81 | ||
46 | #define LCD_CNTL_DATA_INPUT_DIR 0x84 | ||
47 | #define LCD_CNTL_DISPLAY_START_LINE 0x8a | ||
48 | #define LCD_CNTL_AREA_SCROLL 0x10 | ||
49 | |||
50 | #define LCD_CNTL_PAGE 0xb1 | ||
51 | #define LCD_CNTL_COLUMN 0x13 | ||
52 | #define LCD_CNTL_DATA_WRITE 0x1d | ||
53 | |||
54 | /*** shared semi-private declarations ***/ | ||
55 | extern const unsigned char lcd_dibits[16] ICONST_ATTR; | ||
56 | |||
57 | /*** hardware configuration ***/ | ||
58 | int lcd_default_contrast(void) | ||
59 | { | ||
60 | return DEFAULT_CONTRAST_SETTING; | ||
61 | } | ||
62 | |||
63 | void lcd_set_contrast(int val) | ||
64 | { | ||
65 | /* Keep val in acceptable hw range */ | ||
66 | if (val < 0) | ||
67 | val = 0; | ||
68 | else if (val > 127) | ||
69 | val = 127; | ||
70 | |||
71 | lcd_write_command_ex(LCD_CNTL_ELECTRONIC_VOLUME, val, -1); | ||
72 | } | ||
73 | |||
74 | void lcd_set_invert_display(bool yesno) | ||
75 | { | ||
76 | lcd_write_command(LCD_CNTL_REVERSE | (yesno?1:0)); | ||
77 | } | ||
78 | |||
79 | /* turn the display upside down (call lcd_update() afterwards) */ | ||
80 | void lcd_set_flip(bool yesno) | ||
81 | { | ||
82 | if (yesno) | ||
83 | { | ||
84 | lcd_write_command(LCD_CNTL_COLUMN_ADDRESS_DIR | 0); | ||
85 | lcd_write_command(LCD_CNTL_COMMON_OUTPUT_STATUS | 1); | ||
86 | lcd_write_command_ex(LCD_CNTL_DUTY_SET, 0x20, 2); | ||
87 | } | ||
88 | else | ||
89 | { | ||
90 | lcd_write_command(LCD_CNTL_COLUMN_ADDRESS_DIR | 1); | ||
91 | lcd_write_command(LCD_CNTL_COMMON_OUTPUT_STATUS | 0); | ||
92 | lcd_write_command_ex(LCD_CNTL_DUTY_SET, 0x20, 1); | ||
93 | } | ||
94 | } | ||
95 | |||
96 | void lcd_init_device(void) | ||
97 | { | ||
98 | /* LCD Reset */ | ||
99 | and_l(~0x00000010, &GPIO1_OUT); | ||
100 | or_l(0x00000010, &GPIO1_ENABLE); | ||
101 | or_l(0x00000010, &GPIO1_FUNCTION); | ||
102 | sleep(1); | ||
103 | or_l(0x00000010, &GPIO1_OUT); | ||
104 | sleep(1); | ||
105 | |||
106 | lcd_write_command(LCD_CNTL_ON_OFF | 1); /* LCD ON */ | ||
107 | lcd_write_command(LCD_CNTL_OFF_MODE | 1); /* OFF -> VCC on drivers */ | ||
108 | lcd_write_command(LCD_CNTL_REVERSE | 0); /* Reverse OFF */ | ||
109 | lcd_write_command(LCD_CNTL_ALL_LIGHTING | 0); /* Normal */ | ||
110 | lcd_write_command(LCD_CNTL_COMMON_OUTPUT_STATUS | 0); /* Normal dir */ | ||
111 | lcd_write_command_ex(LCD_CNTL_DISPLAY_START_LINE, 4, -1); | ||
112 | lcd_write_command(LCD_CNTL_COLUMN_ADDRESS_DIR | 1); /* Reverse */ | ||
113 | lcd_write_command_ex(LCD_CNTL_DISPLAY_MODE, 0, -1); /* Greyscale mode */ | ||
114 | lcd_write_command_ex(LCD_CNTL_GRAY_SCALE_PATTERN, 0x53, -1); | ||
115 | lcd_write_command_ex(LCD_CNTL_DUTY_SET, 0x20, 1); | ||
116 | lcd_write_command_ex(LCD_CNTL_ELECTRONIC_VOLUME, 40, -1); | ||
117 | |||
118 | lcd_write_command(LCD_CNTL_OSC_ON_OFF | 1); /* Oscillator ON */ | ||
119 | lcd_write_command(LCD_CNTL_POWER_SAVE | 0); | ||
120 | lcd_write_command_ex(LCD_CNTL_VOLTAGE_SELECT, 3, -1); | ||
121 | lcd_write_command_ex(LCD_CNTL_POWER_CONTROL, 0x17, -1); | ||
122 | lcd_write_command_ex(LCD_CNTL_OSC_FREQUENCY, 3, -1); | ||
123 | lcd_write_command(LCD_CNTL_NLINE_ON_OFF | 1); /* N-line ON */ | ||
124 | lcd_write_command_ex(LCD_CNTL_LINE_INVERT_DRIVE, 0x10, -1); | ||
125 | lcd_write_command_ex(LCD_CNTL_TEMP_GRADIENT_SELECT, 0, -1); | ||
126 | |||
127 | lcd_update(); | ||
128 | } | ||
129 | |||
130 | /*** update functions ***/ | ||
131 | |||
132 | /* Performance function that works with an external buffer | ||
133 | note that by and bheight are in 8-pixel units! */ | ||
134 | void lcd_blit(const unsigned char* data, int x, int by, int width, | ||
135 | int bheight, int stride) | ||
136 | { | ||
137 | const unsigned char *src, *src_end; | ||
138 | unsigned char *dst_u, *dst_l; | ||
139 | static unsigned char upper[LCD_WIDTH] IBSS_ATTR; | ||
140 | static unsigned char lower[LCD_WIDTH] IBSS_ATTR; | ||
141 | unsigned int byte; | ||
142 | |||
143 | by *= 2; | ||
144 | |||
145 | while (bheight--) | ||
146 | { | ||
147 | src = data; | ||
148 | src_end = data + width; | ||
149 | dst_u = upper; | ||
150 | dst_l = lower; | ||
151 | do | ||
152 | { | ||
153 | byte = *src++; | ||
154 | *dst_u++ = lcd_dibits[byte & 0x0F]; | ||
155 | byte >>= 4; | ||
156 | *dst_l++ = lcd_dibits[byte & 0x0F]; | ||
157 | } | ||
158 | while (src < src_end); | ||
159 | |||
160 | lcd_write_command_ex(LCD_CNTL_PAGE, by++, -1); | ||
161 | lcd_write_command_ex(LCD_CNTL_COLUMN, x, -1); | ||
162 | lcd_write_command(LCD_CNTL_DATA_WRITE); | ||
163 | lcd_write_data(upper, width); | ||
164 | |||
165 | lcd_write_command_ex(LCD_CNTL_PAGE, by++, -1); | ||
166 | lcd_write_command_ex(LCD_CNTL_COLUMN, x, -1); | ||
167 | lcd_write_command(LCD_CNTL_DATA_WRITE); | ||
168 | lcd_write_data(lower, width); | ||
169 | |||
170 | data += stride; | ||
171 | } | ||
172 | } | ||
173 | |||
174 | |||
175 | /* Update the display. | ||
176 | This must be called after all other LCD functions that change the display. */ | ||
177 | void lcd_update(void) ICODE_ATTR; | ||
178 | void lcd_update(void) | ||
179 | { | ||
180 | int y; | ||
181 | |||
182 | /* Copy display bitmap to hardware */ | ||
183 | for (y = 0; y < LCD_FBHEIGHT; y++) | ||
184 | { | ||
185 | lcd_write_command_ex(LCD_CNTL_PAGE, y, -1); | ||
186 | lcd_write_command_ex(LCD_CNTL_COLUMN, 0, -1); | ||
187 | |||
188 | lcd_write_command(LCD_CNTL_DATA_WRITE); | ||
189 | lcd_write_data (lcd_framebuffer[y], LCD_WIDTH); | ||
190 | } | ||
191 | } | ||
192 | |||
193 | /* Update a fraction of the display. */ | ||
194 | void lcd_update_rect(int, int, int, int) ICODE_ATTR; | ||
195 | void lcd_update_rect(int x, int y, int width, int height) | ||
196 | { | ||
197 | int ymax; | ||
198 | |||
199 | /* The Y coordinates have to work on even 8 pixel rows */ | ||
200 | ymax = (y + height-1) >> 2; | ||
201 | y >>= 2; | ||
202 | |||
203 | if(x + width > LCD_WIDTH) | ||
204 | width = LCD_WIDTH - x; | ||
205 | if (width <= 0) | ||
206 | return; /* nothing left to do, 0 is harmful to lcd_write_data() */ | ||
207 | if(ymax >= LCD_FBHEIGHT) | ||
208 | ymax = LCD_FBHEIGHT-1; | ||
209 | |||
210 | /* Copy specified rectange bitmap to hardware */ | ||
211 | for (; y <= ymax; y++) | ||
212 | { | ||
213 | lcd_write_command_ex(LCD_CNTL_PAGE, y, -1); | ||
214 | lcd_write_command_ex(LCD_CNTL_COLUMN, x, -1); | ||
215 | |||
216 | lcd_write_command(LCD_CNTL_DATA_WRITE); | ||
217 | lcd_write_data (&lcd_framebuffer[y][x], width); | ||
218 | } | ||
219 | } | ||