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[/] [or1k_old/] [trunk/] [rc203soc/] [sw/] [uClinux/] [arch/] [armnommu/] [drivers/] [char/] [console-dummy.c] - Blame information for rev 1622

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Line No. Rev Author Line
1 1622 jcastillo 
/*
2 
 * linux/arch/arm/drivers/char/console-dummy.c
3 
 *
4 
 * Modifications (C) 1996 Russell King
5 
 */
6 
 
7 
/*
8 
 * This module exports the console io functions:
9 
 *
10 
 *  'int           vcd_init (struct vt *vt, int kmallocok, unsigned long *kmem)'
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 *  'unsigned long vcd_pre_init (unsigned long kmem, struct vt *vt)'
12 
 *  'void          vcd_disallocate (struct vt *vt)'
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 *  'int           vcd_resize (unsigned long lines, unsigned long cols)'
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 *  'void          vcd_blankscreen (int nopowersave)'
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 *  'void          vcd_unblankscreen (void)'
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 *  'void          vcd_savestate (const struct vt *vt, int blanked)'
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 *  'void          vcd_restorestate (const struct vt *vt)'
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 *  'void          vcd_setup_graphics (const struct vt *vt)'
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 *  'int           vcd_write (const struct vt *vt, int from_user, const unsigned char *buf, int count)'
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 *  'int           vcd_ioctl (const struct vt *vt, int cmd, unsigned long arg)'
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 *
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 *
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 *      'int vc_allocate(unsigned int console)'
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 *      'int vc_cons_allocated (unsigned int console)'
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 *      'int vc_resize(unsigned long lines,unsigned long cols)'
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 *      'void vc_disallocate(unsigned int currcons)'
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 *
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 *      'unsigned long con_init(unsigned long)'
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 * S    'int con_open(struct tty_struct *tty,struct file *filp)'
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 * S    'void con_write(struct tty_struct *tty)'
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 * S    'void console_print(const char *b)'
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 *      'void update_screen(int new_console)'
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 *
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 *      'void blank_screen(void)'
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 *      'void unblank_screen(void)'
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 *      'void scrollback(int lines)'                    *
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 *      'void scrollfront(int lines)'                   *
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 *      'int do_screendump(int arg)'
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 *
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 *      'int con_get_font(char *)'
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 *      'int con_set_font(char *)'
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 *      'int con_get_trans(char *)'
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 *      'int con_set_trans(char *)'
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 *
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 *      'int mouse_reporting(void)'
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 */
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#include <linux/sched.h>
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#include <linux/timer.h>
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#include <linux/interrupt.h>
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#include <linux/tty.h>
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#include <linux/tty_flip.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/kd.h>
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#include <linux/major.h>
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#include <linux/mm.h>
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#include <linux/malloc.h>
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#include <asm/segment.h>
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#include <asm/irq.h>
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#include "kbd_kern.h"
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#include "consolemap.h"
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#include "vt_kern.h"
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#include "selection.h"
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extern void register_console(void (*proc)(const char *));
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static int printable;                           /* Is console ready for printing? */
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#define SERIAL_ECHO_PORT        0x2f8
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#define SERIAL_ECHO_DIVISOR     3
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#include "serialecho.c"
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/*
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 * functions to handle /dev/fb
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 */
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int con_fb_read(char *buf, unsigned long pos, int count)
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{
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        return -EIO;
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}
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int con_fb_write(const char *buf, unsigned long pos, int count)
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{
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        return -EIO;
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}
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int con_fb_mmap(unsigned long vma_start, unsigned long vma_offset,
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                        unsigned long vma_end, pgprot_t prot)
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{
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        return -EINVAL;
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}
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void no_scroll (char *str, int *ints)
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{
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}
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void mouse_report (struct tty_struct *tty, int butt, int mrx, int mry)
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{
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}
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int mouse_reporting (void)
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{
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    return 0;
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}
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static inline unsigned long *bufferpos (const struct vt * const vt, int offset)
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{
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    return NULL;
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}
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void invert_screen (const struct vt * const vt, unsigned int offset, unsigned int count)
114 
{
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}
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void complement_pos (const struct vt * const vt, unsigned int offset)
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{
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}
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unsigned long screen_word (const struct vt * const vt, unsigned int offset)
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{
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    return 0;
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}
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int scrw2glyph (unsigned long scr_word)
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{
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    return 0;
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}
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unsigned long *screen_pos (const struct vt * const vt, unsigned int offset)
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{
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    return NULL;
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}
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void getconsxy (const struct vt * const vt, char *p)
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{
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    p[0] = p[1] = 0;
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}
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141 
void putconsxy (const struct vt * const vt, char *p)
142 
{
143 
}
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145 
void console_print(const char *b)
146 
{
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    static int printing = 0;
148 
 
149 
    if (!printable || printing)
150 
        return;  /* console not yet initialized */
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152 
    printing = 1;
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    serial_echo_print (b);
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    printing = 0;
155 
}
156 
 
157 
void update_scrmem (const struct vt * const vt, int start, int length)
158 
{
159 
}
160 
 
161 
void set_scrmem (const struct vt * const vt, long offset)
162 
{
163 
}
164 
 
165 
int con_set_font (char *arg)
166 
{
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    return -EINVAL;
168 
}
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170 
int con_get_font (char *arg)
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{
172 
    return -EINVAL;
173 
}
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175 
void con_reset_palette (const struct vt * const vt)
176 
{
177 
}
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179 
void con_set_palette (const struct vt * const vt)
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{
181 
}
182 
 
183 
/* == arm specific console code ============================================================== */
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185 
int do_screendump(int arg)
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{
187 
    return -EINVAL;
188 
}
189 
 
190 
/*===============================================================================================*/
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192 
int vcd_init (struct vt *vt, int kmallocok, unsigned long *kmem)
193 
{
194 
    return 0;
195 
}
196 
 
197 
unsigned long vcd_pre_init (unsigned long kmem, struct vt *vt)
198 
{
199 
    serial_echo_init (SERIAL_ECHO_PORT);
200 
    printable = 1;
201 
 
202 
    printk ("Console: dummy console driver\n");
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    register_console (console_print);
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    return kmem;
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}
206 
 
207 
void vcd_disallocate (struct vt *vt)
208 
{
209 
}
210 
 
211 
int vcd_resize(unsigned long lines, unsigned long cols)
212 
{/* TODO */
213 
        return -ENOMEM;
214 
}
215 
 
216 
void vcd_blankscreen(int nopowersave)
217 
{
218 
}
219 
 
220 
void vcd_unblankscreen (void)
221 
{
222 
}
223 
 
224 
void vcd_savestate (const struct vt *vt, int blanked)
225 
{
226 
}
227 
 
228 
void vcd_restorestate (const struct vt *vt)
229 
{
230 
}
231 
 
232 
void vcd_setup_graphics (const struct vt *vt)
233 
{
234 
}
235 
 
236 
static char vcd_buffer[128];
237 
int vcd_write (const struct vt *vt, int from_user, const unsigned char *buf, int count)
238 
{
239 
    int tmp = count;
240 
    while (tmp) {
241 
        int i;
242 
 
243 
        i = tmp < 127 ? tmp : 127;
244 
 
245 
        tmp -= i;
246 
        memcpy (vcd_buffer, buf, i);
247 
        buf += i;
248 
 
249 
        vcd_buffer[i] = 0;
250 
        serial_echo_print(vcd_buffer);
251 
    }
252 
    return count;
253 
}
254 
 
255 
int vcd_ioctl (const struct vt *vt, int cmd, unsigned long arg)
256 
{
257 
    switch (cmd) {
258 
    case PIO_FONT:
259 
    case GIO_FONT:
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    case PIO_SCRNMAP:
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    case GIO_SCRNMAP:
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    case PIO_UNISCRNMAP:
263 
    case GIO_UNISCRNMAP:
264 
    case PIO_UNIMAPCLR:
265 
    case PIO_UNIMAP:
266 
    case GIO_UNIMAP:
267 
        return -EINVAL;
268 
 
269 
    default:
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        return -ENOIOCTLCMD;
271 
    }
272 
}
273 
 
274 
void console_map_init (void)
275 
{
276 
}
277 
 
278 
/*
279 
 * Report the current status of the vc. This is exported to modules (ARub)
280 
 */
281 
int con_get_info(int *mode, int *shift, int *col, int *row,
282 
                        struct tty_struct **tty)
283 
{
284 
    if (mode) *mode = 0;
285 
    if (shift) *shift = 0;
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    if (col) *col = 0;
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    if (row) *row = 0;
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    if (tty) *tty = NULL;
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    return 0;
290 
}

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