* - making it shorter - scr_readw are macros which expand in PRETTY long code
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/errno.h>
#include <linux/tty.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/mm.h>
int size;
int minor = iminor(inode);
int currcons = minor & 127;
+ struct vc_data *vc;
+
if (currcons == 0)
currcons = fg_console;
else
currcons--;
if (!vc_cons_allocated(currcons))
return -ENXIO;
+ vc = vc_cons[currcons].d;
- size = video_num_lines * video_num_columns;
+ size = vc->vc_rows * vc->vc_cols;
if (minor & 128)
size = 2*size + HEADER_SIZE;
{
int size;
- lock_kernel();
- size = vcs_size(file->f_dentry->d_inode);
+ down(&con_buf_sem);
+ size = vcs_size(file->f_path.dentry->d_inode);
switch (orig) {
default:
- unlock_kernel();
+ up(&con_buf_sem);
return -EINVAL;
case 2:
offset += size;
break;
}
if (offset < 0 || offset > size) {
- unlock_kernel();
+ up(&con_buf_sem);
return -EINVAL;
}
file->f_pos = offset;
- unlock_kernel();
+ up(&con_buf_sem);
return file->f_pos;
}
-/* We share this temporary buffer with the console write code
- * so that we can easily avoid touching user space while holding the
- * console spinlock.
- */
-extern char con_buf[PAGE_SIZE];
-#define CON_BUF_SIZE PAGE_SIZE
-extern struct semaphore con_buf_sem;
static ssize_t
vcs_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
{
- struct inode *inode = file->f_dentry->d_inode;
+ struct inode *inode = file->f_path.dentry->d_inode;
unsigned int currcons = iminor(inode);
- long pos = *ppos;
+ struct vc_data *vc;
+ long pos;
long viewed, attr, read;
int col, maxcol;
unsigned short *org = NULL;
down(&con_buf_sem);
+ pos = *ppos;
+
/* Select the proper current console and verify
* sanity of the situation under the console lock.
*/
ret = -ENXIO;
if (!vc_cons_allocated(currcons))
goto unlock_out;
+ vc = vc_cons[currcons].d;
ret = -EINVAL;
if (pos < 0)
con_buf_start = con_buf0 = con_buf;
orig_count = this_round;
- maxcol = video_num_columns;
+ maxcol = vc->vc_cols;
if (!attr) {
- org = screen_pos(currcons, p, viewed);
+ org = screen_pos(vc, p, viewed);
col = p % maxcol;
p += maxcol - col;
while (this_round-- > 0) {
- *con_buf0++ = (vcs_scr_readw(currcons, org++) & 0xff);
+ *con_buf0++ = (vcs_scr_readw(vc, org++) & 0xff);
if (++col == maxcol) {
- org = screen_pos(currcons, p, viewed);
+ org = screen_pos(vc, p, viewed);
col = 0;
p += maxcol;
}
if (p < HEADER_SIZE) {
size_t tmp_count;
- con_buf0[0] = (char) video_num_lines;
- con_buf0[1] = (char) video_num_columns;
- getconsxy(currcons, con_buf0 + 2);
+ con_buf0[0] = (char)vc->vc_rows;
+ con_buf0[1] = (char)vc->vc_cols;
+ getconsxy(vc, con_buf0 + 2);
con_buf_start += p;
this_round += p;
p /= 2;
col = p % maxcol;
- org = screen_pos(currcons, p, viewed);
+ org = screen_pos(vc, p, viewed);
p += maxcol - col;
/* Buffer has even length, so we can always copy
this_round = (this_round + 1) >> 1;
while (this_round) {
- *tmp_buf++ = vcs_scr_readw(currcons, org++);
+ *tmp_buf++ = vcs_scr_readw(vc, org++);
this_round --;
if (++col == maxcol) {
- org = screen_pos(currcons, p, viewed);
+ org = screen_pos(vc, p, viewed);
col = 0;
p += maxcol;
}
static ssize_t
vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
{
- struct inode *inode = file->f_dentry->d_inode;
+ struct inode *inode = file->f_path.dentry->d_inode;
unsigned int currcons = iminor(inode);
- long pos = *ppos;
+ struct vc_data *vc;
+ long pos;
long viewed, attr, size, written;
char *con_buf0;
int col, maxcol;
down(&con_buf_sem);
+ pos = *ppos;
+
/* Select the proper current console and verify
* sanity of the situation under the console lock.
*/
ret = -ENXIO;
if (!vc_cons_allocated(currcons))
goto unlock_out;
+ vc = vc_cons[currcons].d;
size = vcs_size(inode);
ret = -EINVAL;
con_buf0 = con_buf;
orig_count = this_round;
- maxcol = video_num_columns;
+ maxcol = vc->vc_cols;
p = pos;
if (!attr) {
- org0 = org = screen_pos(currcons, p, viewed);
+ org0 = org = screen_pos(vc, p, viewed);
col = p % maxcol;
p += maxcol - col;
unsigned char c = *con_buf0++;
this_round--;
- vcs_scr_writew(currcons,
- (vcs_scr_readw(currcons, org) & 0xff00) | c, org);
+ vcs_scr_writew(vc,
+ (vcs_scr_readw(vc, org) & 0xff00) | c, org);
org++;
if (++col == maxcol) {
- org = screen_pos(currcons, p, viewed);
+ org = screen_pos(vc, p, viewed);
col = 0;
p += maxcol;
}
if (p < HEADER_SIZE) {
char header[HEADER_SIZE];
- getconsxy(currcons, header + 2);
+ getconsxy(vc, header + 2);
while (p < HEADER_SIZE && this_round > 0) {
this_round--;
header[p++] = *con_buf0++;
}
if (!viewed)
- putconsxy(currcons, header + 2);
+ putconsxy(vc, header + 2);
}
p -= HEADER_SIZE;
col = (p/2) % maxcol;
if (this_round > 0) {
- org0 = org = screen_pos(currcons, p/2, viewed);
+ org0 = org = screen_pos(vc, p/2, viewed);
if ((p & 1) && this_round > 0) {
char c;
this_round--;
c = *con_buf0++;
#ifdef __BIG_ENDIAN
- vcs_scr_writew(currcons, c |
- (vcs_scr_readw(currcons, org) & 0xff00), org);
+ vcs_scr_writew(vc, c |
+ (vcs_scr_readw(vc, org) & 0xff00), org);
#else
- vcs_scr_writew(currcons, (c << 8) |
- (vcs_scr_readw(currcons, org) & 0xff), org);
+ vcs_scr_writew(vc, (c << 8) |
+ (vcs_scr_readw(vc, org) & 0xff), org);
#endif
org++;
p++;
if (++col == maxcol) {
- org = screen_pos(currcons, p/2, viewed);
+ org = screen_pos(vc, p/2, viewed);
col = 0;
}
}
while (this_round > 1) {
unsigned short w;
- w = get_unaligned(((const unsigned short *)con_buf0));
- vcs_scr_writew(currcons, w, org++);
+ w = get_unaligned(((unsigned short *)con_buf0));
+ vcs_scr_writew(vc, w, org++);
con_buf0 += 2;
this_round -= 2;
if (++col == maxcol) {
- org = screen_pos(currcons, p, viewed);
+ org = screen_pos(vc, p, viewed);
col = 0;
p += maxcol;
}
c = *con_buf0++;
#ifdef __BIG_ENDIAN
- vcs_scr_writew(currcons, (vcs_scr_readw(currcons, org) & 0xff) | (c << 8), org);
+ vcs_scr_writew(vc, (vcs_scr_readw(vc, org) & 0xff) | (c << 8), org);
#else
- vcs_scr_writew(currcons, (vcs_scr_readw(currcons, org) & 0xff00) | c, org);
+ vcs_scr_writew(vc, (vcs_scr_readw(vc, org) & 0xff00) | c, org);
#endif
}
}
buf += orig_count;
pos += orig_count;
if (org0)
- update_region(currcons, (unsigned long)(org0), org-org0);
+ update_region(vc, (unsigned long)(org0), org - org0);
}
*ppos += written;
ret = written;
return 0;
}
-static struct file_operations vcs_fops = {
+static const struct file_operations vcs_fops = {
.llseek = vcs_lseek,
.read = vcs_read,
.write = vcs_write,
.open = vcs_open,
};
-static struct class_simple *vc_class;
+static struct class *vc_class;
-void vcs_make_devfs(struct tty_struct *tty)
+void vcs_make_sysfs(struct tty_struct *tty)
{
- devfs_mk_cdev(MKDEV(VCS_MAJOR, tty->index + 1),
- S_IFCHR|S_IRUSR|S_IWUSR,
- "vcc/%u", tty->index + 1);
- devfs_mk_cdev(MKDEV(VCS_MAJOR, tty->index + 129),
- S_IFCHR|S_IRUSR|S_IWUSR,
- "vcc/a%u", tty->index + 1);
- class_simple_device_add(vc_class, MKDEV(VCS_MAJOR, tty->index + 1), NULL, "vcs%u", tty->index + 1);
- class_simple_device_add(vc_class, MKDEV(VCS_MAJOR, tty->index + 129), NULL, "vcsa%u", tty->index + 1);
+ device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1),
+ "vcs%u", tty->index + 1);
+ device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129),
+ "vcsa%u", tty->index + 1);
}
-void vcs_remove_devfs(struct tty_struct *tty)
+
+void vcs_remove_sysfs(struct tty_struct *tty)
{
- devfs_remove("vcc/%u", tty->index + 1);
- devfs_remove("vcc/a%u", tty->index + 1);
- class_simple_device_remove(MKDEV(VCS_MAJOR, tty->index + 1));
- class_simple_device_remove(MKDEV(VCS_MAJOR, tty->index + 129));
+ device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 1));
+ device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 129));
}
int __init vcs_init(void)
{
if (register_chrdev(VCS_MAJOR, "vcs", &vcs_fops))
panic("unable to get major %d for vcs device", VCS_MAJOR);
- vc_class = class_simple_create(THIS_MODULE, "vc");
+ vc_class = class_create(THIS_MODULE, "vc");
- devfs_mk_cdev(MKDEV(VCS_MAJOR, 0), S_IFCHR|S_IRUSR|S_IWUSR, "vcc/0");
- devfs_mk_cdev(MKDEV(VCS_MAJOR, 128), S_IFCHR|S_IRUSR|S_IWUSR, "vcc/a0");
- class_simple_device_add(vc_class, MKDEV(VCS_MAJOR, 0), NULL, "vcs");
- class_simple_device_add(vc_class, MKDEV(VCS_MAJOR, 128), NULL, "vcsa");
+ device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 0), "vcs");
+ device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 128), "vcsa");
return 0;
}
git://git.onelab.eu / linux-2.6.git / blobdiff