41 lines
1.0 KiB
C
41 lines
1.0 KiB
C
// devices.h
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// Author: Josh Holtrop
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// Date: 08/02/04
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// Modified: 08/22/04
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#ifndef __HOS_DEVICES_H__
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#define __HOS_DEVICES_H__ __HOS_DEVICES_H__
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#include "hos_defines.h"
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#define MAJORC_VCONSOLE 4
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#define MAJORC_PARALLEL 6
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#define MAJORC_KEYBOARD 11
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#define MAJORB_RAMDISK 1
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#define BLOCK_SIZE 512
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#define BLOCK_SIZE_LOG 9
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typedef short major_t;
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typedef short minor_t;
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typedef struct {
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int (*block_read)(minor_t minor, u32_t blockStart, u32_t blocks, void *buffer);
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int (*block_write)(minor_t minor, u32_t blockStart, u32_t blocks, void *buffer);
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int (*char_read)(minor_t minor);
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int (*char_write)(minor_t minor, int c);
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} dev_driver_t;
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void devices_init();
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int devices_register_major(char type, major_t major, dev_driver_t *dev);
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int block_read(major_t major, minor_t minor, u32_t blockStart, u32_t blocks, void *buffer);
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int block_write(major_t major, minor_t minor, u32_t blockStart, u32_t blocks, void *buffer);
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int char_read(major_t major, minor_t minor);
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int char_write(major_t major, minor_t minor, int c);
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#endif
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