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dev: start implementing framebuffer devices

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This commit is contained in:
max 🍓
2023-06-06 22:01:17 +01:00
parent 81533a1cff
commit cb220452db
7 changed files with 177 additions and 13 deletions
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27
include/socks/device.h
View File

@@ -6,6 +6,7 @@
#include <socks/status.h>
#include <socks/bitmap.h>
#include <socks/object.h>
#include <socks/fb.h>
#include <socks/ringbuffer.h>
struct device;
@@ -19,12 +20,14 @@ struct input_event;
#define INPUT_DEVICE_EVENT_QUEUE_SIZE 128
#define INPUT_DEVICE_MAX 4096
#define FRAMEBUFFER_DEVICE_MAX 4096
#define BLOCK_DEVICE(dev) ((dev)->dev_type == DEV_TYPE_BLOCK ? &(dev)->blk : NULL)
#define CHAR_DEVICE(dev) ((dev)->dev_type == DEV_TYPE_CHAR ? &(dev)->chr : NULL)
#define NET_DEVICE(dev) ((dev)->dev_type == DEV_TYPE_NET ? &(dev)->net : NULL)
#define INPUT_DEVICE(dev) ((dev)->dev_type == DEV_TYPE_INPUT ? &(dev)->input : NULL)
#define BUS_DEVICE(dev) ((dev)->dev_type == DEV_TYPE_BUS ? &(dev)->bus : NULL)
#define FRAMEBUFFER_DEVICE(dev) ((dev)->dev_type == DEV_TYPE_FRAMEBUFFER ? &(dev)->fb : NULL)
enum device_type {
DEV_TYPE_UNKNOWN = 0,
@@ -33,6 +36,11 @@ enum device_type {
DEV_TYPE_NET,
DEV_TYPE_INPUT,
DEV_TYPE_BUS,
DEV_TYPE_FRAMEBUFFER,
};
struct device_type_ops {
kern_status_t(*register_device)(struct device *);
};
struct block_device_ops {
@@ -61,6 +69,10 @@ struct bus_device_ops {
kern_status_t(*scan)(struct device *);
};
struct framebuffer_device_ops {
kern_status_t(*scan)(struct device *);
};
struct block_device {
struct block_device_ops *b_ops;
};
@@ -83,6 +95,13 @@ struct bus_device {
struct bus_device_ops *b_ops;
};
struct framebuffer_device {
unsigned int fb_id;
struct framebuffer_device_ops *fb_ops;
struct framebuffer_varinfo fb_varinfo;
struct framebuffer_fixedinfo fb_fixedinfo;
};
struct device {
struct object dev_base;
unsigned int dev_minor;
@@ -103,6 +122,7 @@ struct device {
struct net_device net;
struct input_device input;
struct bus_device bus;
struct framebuffer_device fb;
};
};
@@ -160,6 +180,7 @@ extern struct block_device *block_device_create(void);
extern struct net_device *net_device_create(void);
extern struct input_device *input_device_create(void);
extern struct bus_device *bus_device_create(void);
extern struct framebuffer_device *framebuffer_device_create(void);
static inline struct device *char_device_base(struct char_device *dev)
{
@@ -186,11 +207,15 @@ static inline struct device *bus_device_base(struct bus_device *dev)
return (struct device *)((char *)dev - offsetof(struct device, bus));
}
static inline struct device *framebuffer_device_base(struct framebuffer_device *dev)
{
return (struct device *)((char *)dev - offsetof(struct device, fb));
}
extern kern_status_t device_register(struct device *dev, struct driver *owner, struct device *parent);
extern kern_status_t input_device_report_event(struct input_device *dev, const struct input_event *ev, bool noblock);
extern kern_status_t input_device_read(struct device *dev, void *buf, size_t size, size_t *bytes_read, socks_flags_t flags);
extern kern_status_t input_device_register(struct input_device *dev);
extern struct driver *driver_create(struct kext *self, const char *name);
extern kern_status_t driver_destroy(struct driver *driver);

33
include/socks/fb.h Normal file
View File

@@ -0,0 +1,33 @@
#ifndef SOCKS_FB_H_
#define SOCKS_FB_H_
#include <stdint.h>
enum framebuffer_flags {
FB_VGATEXT = 0x01u,
};
struct framebuffer_bitfield {
uint32_t b_offset;
uint16_t b_length;
};
struct framebuffer_varinfo {
enum framebuffer_flags fb_flags;
uint32_t fb_xres;
uint32_t fb_yres;
uint32_t fb_bpp;
uint32_t fb_stride;
struct framebuffer_bitfield fb_red;
struct framebuffer_bitfield fb_green;
struct framebuffer_bitfield fb_blue;
struct framebuffer_bitfield fb_alpha;
};
struct framebuffer_fixedinfo {
uint64_t fb_baseptr;
};
#endif