Adding FB OLED Support #6
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Marking as draft until I test it all once more tomorrow |
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Tested |
modolaty
requested review from
ojayanth,
rajaganeshr,
ashok2ku,
mahkurap,
abinayaddhandapani and
aasboddu
src/lcdlib/lcdlib_common_oled.c
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| print_err("1 Writing string to display at (%d, %d): %s\n", x, y, buffer); | ||
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| // Maximum allowable string length | ||
| int max_length = (OLED_WIDTH_PX - 7) / CHARACTER_WIDTH_PX; // 128 pixels, 6x8 glyphs |
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We should take this opportunity to move away from CMakeLists and use Meson as upstream modules are using meson to speed up compilation.
| BMC_VER, | ||
| BIOS_VER | ||
| } LCD_msgType_t; | ||
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int lcdlib_enable_dev(int lcdDeviceNum);
int lcdlib_disable_dev(int lcdDeviceNum);
would be required to extend beyond a single display/oled.
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| } | ||
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| int lcdlib_open_dev(void) |
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This API signature needs change to extend beyond single buffer.
something like int lcdlib_open_dev(char *deviceName) or int lcdlib_open_dev(int deviceId)
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| return 0; | ||
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| int lcdlib_close_dev(void) |
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This API signature needs change to extend beyond single buffer.
something like int lcdlib_close_dev(char *deviceName) or int lcdlib_close_dev(int deviceId)
src/lcdlib/lcdlib_common_oled.c
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| #define print_err(fmt, args...) | ||
| #endif | ||
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| static int fb_fd = -1; |
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Global file pointer will cause extensibility issues.
| #endif | ||
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| static int fb_fd = -1; | ||
| static unsigned char *fb_buffer = NULL; |
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Need to find a way to avoid global variables in general. This will come in the way of supporting more than one display.
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| int lcdlib_open_dev(void); | ||
| int lcdlib_close_dev(void); | ||
| int lcdlib_write_string(LCD_msgType_t msgType, unsigned char *buffer, int str_len); |
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This needs a re-look to see if it needs to include deviceNumber as a parameter to write to the right display.
| int lcdlib_open_dev(void); | ||
| int lcdlib_close_dev(void); | ||
| int lcdlib_write_string(LCD_msgType_t msgType, unsigned char *buffer, int str_len); | ||
| int lcdlib_clearScreen(void); |
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This needs a re-look to see if it needs to include deviceNumber as a parameter to clear the right display.
JacobLevinson
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This commit just adds the files to support the FB OLED device, 128x64px with each pixel being 1 nibble (4 bits), so FB is 64x64. Updated CMakeLists.txt to add option for OLED version Use -DUSE_OLED_VERSION=ON to build new OLED version (off by default)
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Added files to support FB OLED for future platform, and modified the CMakeLists.txt to add OLED build option.
To enable, use the cmake -DUSE_OLED_VERSION=ON flag (off by default). This will build the new version.
In bb recipie for amd-lcd-lib, will likely need to add EXTRA_OECMAKE += "-DUSE_OLED_VERSION=ON", and also remove DEPENDS += "i2c-tools" (this doesn't use i2c).