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kernel: implement tty driver system

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This commit is contained in:
max 🍓
2023-06-10 21:41:07 +01:00
parent e10f11af88
commit d09ad5838e
9 changed files with 198 additions and 54 deletions
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53
include/socks/tty.h
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@@ -2,10 +2,13 @@
#define SOCKS_TTY_H_
#include <socks/status.h>
#include <socks/device.h>
#include <socks/queue.h>
#include <socks/object.h>
#include <stdint.h>
struct kext;
/* The TTY system.
TTYs are an enhanced version of the console object. Rather than a simple output
@@ -25,9 +28,6 @@
extern "C" {
#endif
/* opaque context pointer for use by the tty driver */
typedef void *tty_driver_ctx_t;
enum tty_driver_type {
/* For TTYs operating on simple IO devices like serial ports.
Allows writing characters, receiving characters, and not much else. */
@@ -58,38 +58,45 @@ enum tty_scroll_dir {
support, depending on what the driver supports. */
typedef uint64_t tty_attrib_t;
struct tty_driver_ops {
void (*tty_init)(struct device *dev);
void (*tty_deinit)(struct device *dev);
void (*tty_clear)(struct device *dev, int x, int y, int width, int height);
void (*tty_putc)(struct device *dev, int c, int xpos, int ypos, tty_attrib_t attrib);
void (*tty_set_cursor)(struct device *dev, enum tty_cursor cur);
void (*tty_move_cursor)(struct device *dev, int x, int y);
void (*tty_scroll)(struct device *dev, enum tty_scroll_dir dir, int lines);
};
struct tty_driver {
struct object tty_base;
struct driver tty_base;
char tty_name[16];
enum tty_driver_type tty_type;
struct queue_entry tty_list;
struct queue_entry tty_head;
void (*tty_init)(tty_driver_ctx_t *ctx);
void (*tty_deinit)(tty_driver_ctx_t ctx);
void (*tty_clear)(tty_driver_ctx_t ctx, int x, int y, int width, int height);
void (*tty_putc)(tty_driver_ctx_t ctx, int c, int xpos, int ypos, tty_attrib_t attrib);
void (*tty_set_cursor)(tty_driver_ctx_t ctx, enum tty_cursor cur);
void (*tty_move_cursor)(tty_driver_ctx_t ctx, int x, int y);
void (*tty_scroll)(tty_driver_ctx_t ctx, enum tty_scroll_dir dir, int lines);
struct tty_driver_ops *tty_ops;
};
struct tty {
int tty_xcur, tty_ycur;
struct tty_device {
unsigned int tty_xcells, tty_ycells;
unsigned int tty_xcur, tty_ycur;
unsigned int tty_iflag, tty_oflag, tty_lflag;
tty_driver_ctx_t tty_dctx;
const struct tty_driver *tty_driver;
};
extern kern_status_t tty_init(void);
extern struct device *tty_device_create(void);
extern kern_status_t tty_device_register(struct device *dev, struct tty_driver *owner, struct device *parent);
extern struct tty_driver *tty_driver_create(struct kext *self, const char *name);
extern kern_status_t tty_driver_destroy(struct tty_driver *drv);
extern kern_status_t tty_driver_register(struct tty_driver *drv);
extern kern_status_t tty_driver_unregister(struct tty_driver *drv);
extern struct tty *tty_create(void);
extern void tty_destroy(struct tty *tty);
extern int tty_read(struct tty *tty, char *s, unsigned long len);
extern int tty_write(struct tty *tty, const char *s, unsigned long len);
static inline struct driver *tty_driver_base(struct tty_driver *drv)
{
return &drv->tty_base;
}
#ifdef __cplusplus
}