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f72d1684e5
Previously it was not initialized until "post-VM", but there are a number of ways VM initialization can go wrong that it would be nice to know about without needing a serial port. On arches which map the whole physical memory into the kernel address space (x86_64, at least), we can get the bluescreen facility initialized using KERNEL_PMAP_BASE. On other architectures, we just fail to init then, and do the usual setup later on. A slight bit of extra code cleanup in blue_screen_init_early: we now just call module->info.std_ops() rather than a frame-buffer-console specific method.
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/*
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* Copyright 2005-2009, Axel Dörfler, axeld@pinc-software.de.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef KERNEL_FRAME_BUFFER_CONSOLE_H
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#define KERNEL_FRAME_BUFFER_CONSOLE_H
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#include <console.h>
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struct kernel_args;
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#define FRAME_BUFFER_CONSOLE_MODULE_NAME "console/frame_buffer/v1"
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#define FRAME_BUFFER_BOOT_INFO "frame_buffer/v1"
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struct frame_buffer_boot_info {
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area_id area;
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addr_t physical_frame_buffer;
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addr_t frame_buffer;
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int32 width;
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int32 height;
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int32 depth;
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int32 bytes_per_row;
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uint8 vesa_capabilities;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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bool frame_buffer_console_available(void);
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status_t frame_buffer_update(addr_t baseAddress, int32 width, int32 height,
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int32 depth, int32 bytesPerRow);
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status_t frame_buffer_console_init(struct kernel_args* args);
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status_t frame_buffer_console_init_post_vm(struct kernel_args* args);
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status_t frame_buffer_console_init_post_modules(struct kernel_args* args);
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status_t _user_frame_buffer_update(addr_t baseAddress, int32 width,
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int32 height, int32 depth, int32 bytesPerRow);
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#ifdef __cplusplus
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}
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#endif
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#endif /* KERNEL_FRAME_BUFFER_CONSOLE_H */
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