46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
#ifndef SOCKS_CONSOLE_H_
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#define SOCKS_CONSOLE_H_
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/* The console system
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Consoles are like simplified TTYs. Their purpose is to serve as an output
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sink for messages printed using printk.
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a console_t could be used to represent a serial port, UART port, or even
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a text-based framebuffer display. Anything where the job of displaying
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or sending text can be abstracted to a simple write() call.
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A secondary purpose of consoles is to allow input. For example, a console
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representing a serial port may allow both sending AND receiving over the
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port.
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*/
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#include <socks/queue.h>
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#include <socks/locks.h>
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#include <socks/status.h>
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typedef enum console_flags {
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/* console is only used during the boot process. the console
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will be automatically de-registered when the first
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non-boot console is registered */
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CON_BOOT = 0x01u,
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} console_flags_t;
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typedef struct console {
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char c_name[16];
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console_flags_t c_flags;
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spin_lock_t c_lock;
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void (*c_write)(struct console *, const char *, unsigned int);
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int (*c_read)(struct console *, char *, unsigned int);
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queue_entry_t c_list;
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} console_t;
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extern kern_status_t console_register(console_t *con);
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extern kern_status_t console_unregister(console_t *con);
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extern void console_write(console_t *con, const char *s, unsigned int len);
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extern int console_read(console_t *con, char *s, unsigned int len);
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#endif
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