diff options
Diffstat (limited to 'firmware/target/hosted/ibasso/lcd-ibasso.c')
-rw-r--r-- | firmware/target/hosted/ibasso/lcd-ibasso.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/firmware/target/hosted/ibasso/lcd-ibasso.c b/firmware/target/hosted/ibasso/lcd-ibasso.c new file mode 100644 index 0000000000..4e03ba7e50 --- /dev/null +++ b/firmware/target/hosted/ibasso/lcd-ibasso.c | |||
@@ -0,0 +1,195 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___ | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * | ||
9 | * Copyright (C) 2014 by Ilia Sergachev: Initial Rockbox port to iBasso DX50 | ||
10 | * Copyright (C) 2014 by Mario Basister: iBasso DX90 port | ||
11 | * Copyright (C) 2014 by Simon Rothen: Initial Rockbox repository submission, additional features | ||
12 | * Copyright (C) 2014 by Udo Schläpfer: Code clean up, additional features | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or | ||
15 | * modify it under the terms of the GNU General Public License | ||
16 | * as published by the Free Software Foundation; either version 2 | ||
17 | * of the License, or (at your option) any later version. | ||
18 | * | ||
19 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
20 | * KIND, either express or implied. | ||
21 | * | ||
22 | ****************************************************************************/ | ||
23 | |||
24 | |||
25 | #include <errno.h> | ||
26 | #include <fcntl.h> | ||
27 | #include <stdbool.h> | ||
28 | #include <stdlib.h> | ||
29 | #include <linux/fb.h> | ||
30 | #include <sys/ioctl.h> | ||
31 | #include <sys/mman.h> | ||
32 | #include <sys/stat.h> | ||
33 | #include <sys/types.h> | ||
34 | |||
35 | #include "config.h" | ||
36 | #include "debug.h" | ||
37 | #include "events.h" | ||
38 | #include "panic.h" | ||
39 | |||
40 | #include "debug-ibasso.h" | ||
41 | #include "lcd-target.h" | ||
42 | #include "sysfs-ibasso.h" | ||
43 | |||
44 | |||
45 | fb_data *dev_fb = 0; | ||
46 | |||
47 | |||
48 | /* Framebuffer device handle. */ | ||
49 | static int dev_fd = 0; | ||
50 | |||
51 | |||
52 | void lcd_init_device(void) | ||
53 | { | ||
54 | TRACE; | ||
55 | |||
56 | dev_fd = open("/dev/graphics/fb0", O_RDWR); | ||
57 | if(dev_fd == -1) | ||
58 | { | ||
59 | DEBUGF("ERROR %s: open failed on /dev/graphics/fb0, errno: %d.", __func__, errno); | ||
60 | exit(errno); | ||
61 | } | ||
62 | |||
63 | /* Get the changeable information. */ | ||
64 | struct fb_var_screeninfo vinfo; | ||
65 | if(ioctl(dev_fd, FBIOGET_VSCREENINFO, &vinfo) < 0) | ||
66 | { | ||
67 | DEBUGF("ERROR %s: ioctl FBIOGET_VSCREENINFO failed on /dev/graphics/fb0, errno: %d.", __func__, errno); | ||
68 | exit(errno); | ||
69 | } | ||
70 | |||
71 | DEBUGF("DEBUG %s: bits_per_pixel: %u, width: %u, height: %u.", __func__, vinfo.bits_per_pixel, vinfo.width, vinfo.height); | ||
72 | |||
73 | /* | ||
74 | Framebuffer does not fit the screen, a bug of iBassos Firmware, not Rockbox. | ||
75 | Cannot be solved with parameters. | ||
76 | */ | ||
77 | /*vinfo.bits_per_pixel = LCD_DEPTH; | ||
78 | vinfo.xres = LCD_WIDTH; | ||
79 | vinfo.xres_virtual = LCD_WIDTH; | ||
80 | vinfo.width = LCD_WIDTH; | ||
81 | vinfo.yres = LCD_HEIGHT; | ||
82 | vinfo.yres_virtual = LCD_HEIGHT; | ||
83 | vinfo.height = LCD_HEIGHT; | ||
84 | vinfo.activate = FB_ACTIVATE_NOW; | ||
85 | if(ioctl(dev_fd, FBIOPUT_VSCREENINFO, &vinfo) == -1) | ||
86 | { | ||
87 | DEBUGF("ERROR %s: ioctl FBIOPUT_VSCREENINFO failed on /dev/graphics/fb0, errno: %d.", __func__, errno); | ||
88 | exit(EXIT_FAILURE); | ||
89 | }*/ | ||
90 | |||
91 | |||
92 | /* Sanity check: Does framebuffer config match Rockbox config? */ | ||
93 | size_t screensize = vinfo.xres * vinfo.yres * vinfo.bits_per_pixel / 8; | ||
94 | if(screensize != FRAMEBUFFER_SIZE) | ||
95 | { | ||
96 | DEBUGF("ERROR %s: Screen size does not match config: %d != %d.", __func__, screensize, FRAMEBUFFER_SIZE); | ||
97 | exit(EXIT_FAILURE); | ||
98 | } | ||
99 | |||
100 | /* Map the device to memory. */ | ||
101 | dev_fb = mmap(0, FRAMEBUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, dev_fd, 0); | ||
102 | if(dev_fb == MAP_FAILED) | ||
103 | { | ||
104 | DEBUGF("ERROR %s: mmap failed on /dev/graphics/fb0, errno: %d.", __func__, errno); | ||
105 | exit(errno); | ||
106 | } | ||
107 | |||
108 | /* Activate Rockbox LCD. */ | ||
109 | lcd_enable(true); | ||
110 | } | ||
111 | |||
112 | |||
113 | void lcd_shutdown(void) | ||
114 | { | ||
115 | TRACE; | ||
116 | |||
117 | lcd_set_active(false); | ||
118 | munmap(dev_fb, FRAMEBUFFER_SIZE); | ||
119 | close(dev_fd) ; | ||
120 | } | ||
121 | |||
122 | |||
123 | /* | ||
124 | Left as reference. Unblanking does not work as expected, will not enable LCD after a few | ||
125 | seconds of power down. | ||
126 | Instead the backlight power is toggled. | ||
127 | */ | ||
128 | /*void lcd_power_on(void) | ||
129 | { | ||
130 | TRACE; | ||
131 | |||
132 | if(ioctl(dev_fd, FBIOBLANK, VESA_NO_BLANKING) == -1) | ||
133 | { | ||
134 | DEBUGF("ERROR %s: ioctl FBIOBLANK failed on /dev/graphics/fb0, errno: %d.", __func__, errno); | ||
135 | panicf("ERROR %s: ioctl FBIOBLANK failed on /dev/graphics/fb0, errno: %d.", __func__, errno); | ||
136 | return; | ||
137 | } | ||
138 | |||
139 | lcd_set_active(true); | ||
140 | send_event(LCD_EVENT_ACTIVATION, NULL); | ||
141 | } | ||
142 | |||
143 | |||
144 | void lcd_power_off(void) | ||
145 | { | ||
146 | TRACE; | ||
147 | |||
148 | lcd_set_active(false); | ||
149 | |||
150 | if(ioctl(dev_fd, FBIOBLANK, VESA_POWERDOWN) == -1) | ||
151 | { | ||
152 | DEBUGF("ERROR %s: ioctl FBIOBLANK failed on /dev/graphics/fb0, errno: %d.", __func__, errno); | ||
153 | panicf("ERROR %s: ioctl FBIOBLANK failed on /dev/graphics/fb0, errno: %d.", __func__, errno); | ||
154 | return; | ||
155 | } | ||
156 | }*/ | ||
157 | |||
158 | |||
159 | void lcd_enable(bool on) | ||
160 | { | ||
161 | TRACE; | ||
162 | |||
163 | lcd_set_active(on); | ||
164 | |||
165 | if(on) | ||
166 | { | ||
167 | /* | ||
168 | /sys/power/state | ||
169 | on: Cancel suspend. | ||
170 | */ | ||
171 | if(! sysfs_set_string(SYSFS_POWER_STATE, "on")) | ||
172 | { | ||
173 | DEBUGF("ERROR %s: Can not set power state.", __func__); | ||
174 | } | ||
175 | |||
176 | send_event(LCD_EVENT_ACTIVATION, NULL); | ||
177 | } | ||
178 | } | ||
179 | |||
180 | |||
181 | void lcd_sleep(void) | ||
182 | { | ||
183 | TRACE; | ||
184 | |||
185 | /* | ||
186 | See system_init(). Without suspend blocker und mute prevention this will interrupt playback. | ||
187 | Essentially, we are turning off the touch screen. | ||
188 | /sys/power/state | ||
189 | mem: Suspend to RAM. | ||
190 | */ | ||
191 | if(! sysfs_set_string(SYSFS_POWER_STATE, "mem")) | ||
192 | { | ||
193 | DEBUGF("ERROR %s: Can not set power state.", __func__); | ||
194 | } | ||
195 | } | ||