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3582 rimsky 1
/*
2
 * Copyright (c) 2006 Ondrej Palkovsky
3
 * Copyright (c) 2008 Martin Decky
4
 * Copyright (c) 2008 Pavel Rimsky
5
 * All rights reserved.
6
 *
7
 * Redistribution and use in source and binary forms, with or without
8
 * modification, are permitted provided that the following conditions
9
 * are met:
10
 *
11
 * - Redistributions of source code must retain the above copyright
12
 *   notice, this list of conditions and the following disclaimer.
13
 * - Redistributions in binary form must reproduce the above copyright
14
 *   notice, this list of conditions and the following disclaimer in the
15
 *   documentation and/or other materials provided with the distribution.
16
 * - The name of the author may not be used to endorse or promote products
17
 *   derived from this software without specific prior written permission.
18
 *
19
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
 */
30
 
31
/**
32
 * @defgroup serial Serial console
3618 rimsky 33
 * @brief    Serial console services (putc, puts, clear screen, cursor goto,...)
3582 rimsky 34
 * @{
35
 */
36
 
37
/** @file
38
 */
39
 
40
#include <stdio.h>
3716 svoboda 41
#include <ipc/ipc.h>
42
#include <async.h>
43
#include <ipc/fb.h>
44
#include <bool.h>
45
#include <errno.h>
4457 decky 46
#include <io/color.h>
47
#include <io/style.h>
48
#include <string.h>
3582 rimsky 49
 
4141 svoboda 50
#include "../console/screenbuffer.h"
51
#include "main.h"
3582 rimsky 52
#include "serial_console.h"
53
 
54
#define MAX_CONTROL 20
55
 
3769 svoboda 56
static void serial_sgr(const unsigned int mode);
4235 svoboda 57
void serial_putchar(wchar_t ch);
3769 svoboda 58
 
4141 svoboda 59
static int scr_width;
60
static int scr_height;
3769 svoboda 61
static bool color = true;   /** True if producing color output. */
4235 svoboda 62
static bool utf8 = false;   /** True if producing UTF8 output. */
3582 rimsky 63
static putc_function_t putc_function;
64
 
3716 svoboda 65
/* Allow only 1 connection */
66
static int client_connected = 0;
67
 
3769 svoboda 68
enum sgr_color_index {
69
    CI_BLACK    = 0,
70
    CI_RED      = 1,
71
    CI_GREEN    = 2,
72
    CI_BROWN    = 3,
73
    CI_BLUE     = 4,
74
    CI_MAGENTA  = 5,
75
    CI_CYAN     = 6,
76
    CI_WHITE    = 7,
77
};
78
 
79
enum sgr_command {
80
    SGR_RESET   = 0,
81
    SGR_BOLD    = 1,
82
    SGR_BLINK   = 5,
83
    SGR_REVERSE = 7,
84
    SGR_NORMAL_INT  = 22,
85
    SGR_BLINK_OFF   = 25,
86
    SGR_REVERSE_OFF = 27,
87
    SGR_FGCOLOR = 30,
88
    SGR_BGCOLOR = 40
89
};
90
 
91
static int color_map[] = {
92
    [COLOR_BLACK]   = CI_BLACK,
93
    [COLOR_BLUE]    = CI_RED,
94
    [COLOR_GREEN]   = CI_GREEN,
95
    [COLOR_CYAN]    = CI_CYAN,
96
    [COLOR_RED] = CI_RED,
97
    [COLOR_MAGENTA] = CI_MAGENTA,
98
    [COLOR_YELLOW]  = CI_BROWN,
99
    [COLOR_WHITE]   = CI_WHITE
100
};
101
 
3582 rimsky 102
void serial_puts(char *str)
103
{
104
    while (*str)
105
        putc_function(*(str++));
106
}
107
 
4211 svoboda 108
void serial_putchar(wchar_t ch)
109
{
4235 svoboda 110
    uint8_t buf[STR_BOUNDS(1)];
111
    size_t offs;
112
    size_t i;
113
 
114
    if (utf8 != true) {
115
        if (ch >= 0 && ch < 128)
116
            (*putc_function)((uint8_t) ch);
117
        else
118
            (*putc_function)('?');
119
        return;
120
    }
121
 
122
    offs = 0;
123
    if (chr_encode(ch, buf, &offs, STR_BOUNDS(1)) == EOK) {
124
        for (i = 0; i < offs; i++)
125
            (*putc_function)(buf[i]);
126
    } else {
127
        (*putc_function)('?');
128
    }
129
 
4211 svoboda 130
}
131
 
4457 decky 132
void serial_goto(const unsigned int col, const unsigned int row)
3582 rimsky 133
{
4457 decky 134
    if ((col > scr_width) || (row > scr_height))
3582 rimsky 135
        return;
136
 
3769 svoboda 137
    char control[MAX_CONTROL];
138
    snprintf(control, MAX_CONTROL, "\033[%u;%uf", row + 1, col + 1);
3582 rimsky 139
    serial_puts(control);
140
}
141
 
142
void serial_clrscr(void)
143
{
3769 svoboda 144
    /* Initialize graphic rendition attributes. */
145
    serial_sgr(SGR_RESET);
146
    if (color) {
147
        serial_sgr(SGR_FGCOLOR + CI_BLACK);
148
        serial_sgr(SGR_BGCOLOR + CI_WHITE);
149
    }
150
 
3582 rimsky 151
    serial_puts("\033[2J");
152
}
153
 
154
void serial_scroll(int i)
155
{
156
    if (i > 0) {
4457 decky 157
        serial_goto(0, scr_height - 1);
3582 rimsky 158
        while (i--)
159
            serial_puts("\033D");
160
    } else if (i < 0) {
161
        serial_goto(0, 0);
162
        while (i++)
163
            serial_puts("\033M");
164
    }
165
}
166
 
3767 svoboda 167
/** ECMA-48 Set Graphics Rendition. */
168
static void serial_sgr(const unsigned int mode)
3582 rimsky 169
{
170
    char control[MAX_CONTROL];
171
    snprintf(control, MAX_CONTROL, "\033[%um", mode);
172
    serial_puts(control);
173
}
174
 
3716 svoboda 175
/** Set scrolling region. */
176
void serial_set_scroll_region(unsigned last_row)
177
{
178
    char control[MAX_CONTROL];
179
    snprintf(control, MAX_CONTROL, "\033[0;%ur", last_row);
180
    serial_puts(control);
181
}
182
 
3582 rimsky 183
void serial_cursor_disable(void)
184
{
185
    serial_puts("\033[?25l");
186
}
187
 
188
void serial_cursor_enable(void)
189
{
190
    serial_puts("\033[?25h");
191
}
192
 
193
void serial_console_init(putc_function_t putc_fn, uint32_t w, uint32_t h)
194
{
4141 svoboda 195
    scr_width = w;
196
    scr_height = h;
3582 rimsky 197
    putc_function = putc_fn;
198
}
199
 
4141 svoboda 200
static void serial_set_style(int style)
201
{
202
    if (style == STYLE_EMPHASIS) {
203
        if (color) {
204
            serial_sgr(SGR_RESET);
205
            serial_sgr(SGR_FGCOLOR + CI_RED);
206
            serial_sgr(SGR_BGCOLOR + CI_WHITE);
207
        }
208
        serial_sgr(SGR_BOLD);
209
    } else {
210
        if (color) {
211
            serial_sgr(SGR_RESET);
212
            serial_sgr(SGR_FGCOLOR + CI_BLACK);
213
            serial_sgr(SGR_BGCOLOR + CI_WHITE);
214
        }
215
        serial_sgr(SGR_NORMAL_INT);
216
    }
217
}
218
 
219
static void serial_set_idx(unsigned fgcolor, unsigned bgcolor,
220
    unsigned flags)
221
{
222
    if (color) {
223
        serial_sgr(SGR_RESET);
224
        serial_sgr(SGR_FGCOLOR + color_map[fgcolor]);
225
        serial_sgr(SGR_BGCOLOR + color_map[bgcolor]);
226
    } else {
227
        if (fgcolor < bgcolor)
228
            serial_sgr(SGR_RESET);
229
        else
230
            serial_sgr(SGR_REVERSE);
231
    }  
232
}
233
 
234
static void serial_set_rgb(uint32_t fgcolor, uint32_t bgcolor)
235
{
236
    if (fgcolor < bgcolor)
237
        serial_sgr(SGR_REVERSE_OFF);
238
    else
4457 decky 239
        serial_sgr(SGR_REVERSE);
4141 svoboda 240
}
241
 
242
static void serial_set_attrs(const attrs_t *a)
243
{
244
    switch (a->t) {
4457 decky 245
    case at_style:
246
        serial_set_style(a->a.s.style);
247
        break;
248
    case at_rgb:
249
        serial_set_rgb(a->a.r.fg_color, a->a.r.bg_color);
250
        break;
251
    case at_idx:
252
        serial_set_idx(a->a.i.fg_color,
253
            a->a.i.bg_color, a->a.i.flags);
254
        break;
255
    default:
256
        break;
4141 svoboda 257
    }
258
}
259
 
4167 svoboda 260
/** Draw text data to viewport.
261
 *
262
 * @param vport Viewport id
263
 * @param data  Text data.
264
 * @param x Leftmost column of the area.
265
 * @param y Topmost row of the area.
266
 * @param w Number of rows.
267
 * @param h Number of columns.
268
 */
269
static void draw_text_data(keyfield_t *data, unsigned int x,
270
    unsigned int y, unsigned int w, unsigned int h)
4141 svoboda 271
{
4167 svoboda 272
    unsigned int i, j;
273
    keyfield_t *field;
4141 svoboda 274
    attrs_t *a0, *a1;
275
 
4457 decky 276
    serial_goto(x, y);
4141 svoboda 277
    a0 = &data[0].attrs;
278
    serial_set_attrs(a0);
279
 
4167 svoboda 280
    for (j = 0; j < h; j++) {
281
        if (j > 0 && w != scr_width)
4457 decky 282
            serial_goto(x, j);
4167 svoboda 283
 
284
        for (i = 0; i < w; i++) {
285
            field = &data[j * w + i];
286
 
287
            a1 = &field->attrs;
4141 svoboda 288
            if (!attrs_same(*a0, *a1))
289
                serial_set_attrs(a1);
4211 svoboda 290
            serial_putchar(field->character);
4141 svoboda 291
            a0 = a1;
292
        }
293
    }
294
}
295
 
4164 svoboda 296
int lastcol = 0;
297
int lastrow = 0;
298
 
3716 svoboda 299
/**
300
 * Main function of the thread serving client connections.
301
 */
302
void serial_client_connection(ipc_callid_t iid, ipc_call_t *icall)
303
{
304
    int retval;
305
    ipc_callid_t callid;
306
    ipc_call_t call;
4141 svoboda 307
    keyfield_t *interbuf = NULL;
308
    size_t intersize = 0;
309
 
4211 svoboda 310
    wchar_t c;
4167 svoboda 311
    int col, row, w, h;
3716 svoboda 312
    int i;
4141 svoboda 313
 
4325 svoboda 314
    attrs_t cur_attr;
3716 svoboda 315
 
316
    if (client_connected) {
317
        ipc_answer_0(iid, ELIMIT);
318
        return;
319
    }
320
 
321
    client_connected = 1;
322
    ipc_answer_0(iid, EOK);
4325 svoboda 323
 
324
    cur_attr.t = at_style;
325
    cur_attr.a.s.style = STYLE_NORMAL;
3716 svoboda 326
 
327
    /* Clear the terminal, set scrolling region
328
       to 0 - height rows. */
329
    serial_clrscr();
330
    serial_goto(0, 0);
4141 svoboda 331
    serial_set_scroll_region(scr_height);
3716 svoboda 332
 
333
    while (true) {
334
        callid = async_get_call(&call);
335
        switch (IPC_GET_METHOD(call)) {
336
        case IPC_M_PHONE_HUNGUP:
337
            client_connected = 0;
338
            ipc_answer_0(callid, EOK);
339
            return;
4141 svoboda 340
        case IPC_M_SHARE_OUT:
341
            /* We accept one area for data interchange */
342
            intersize = IPC_GET_ARG2(call);
343
            if (intersize >= scr_width * scr_height *
344
                sizeof(*interbuf)) {
345
                receive_comm_area(callid, &call,
346
                    (void *) &interbuf);
347
                continue;
348
            }
349
            retval = EINVAL;
350
            break;
351
        case FB_DRAW_TEXT_DATA:
4167 svoboda 352
            col = IPC_GET_ARG1(call);
353
            row = IPC_GET_ARG2(call);
354
            w = IPC_GET_ARG3(call);
355
            h = IPC_GET_ARG4(call);
4141 svoboda 356
            if (!interbuf) {
357
                retval = EINVAL;
358
                break;
359
            }
4167 svoboda 360
            if (col + w > scr_width || row + h > scr_height) {
361
                retval = EINVAL;
362
                break;
363
            }
364
            draw_text_data(interbuf, col, row, w, h);
4457 decky 365
            lastcol = col + w;
4167 svoboda 366
            lastrow = row + h - 1;
4141 svoboda 367
            retval = 0;
368
            break;
3716 svoboda 369
        case FB_PUTCHAR:
370
            c = IPC_GET_ARG1(call);
4457 decky 371
            col = IPC_GET_ARG2(call);
372
            row = IPC_GET_ARG3(call);
4167 svoboda 373
            if ((lastcol != col) || (lastrow != row))
4457 decky 374
                serial_goto(col, row);
4167 svoboda 375
            lastcol = col + 1;
376
            lastrow = row;
4211 svoboda 377
            serial_putchar(c);
3716 svoboda 378
            retval = 0;
379
            break;
380
        case FB_CURSOR_GOTO:
4457 decky 381
            col = IPC_GET_ARG1(call);
382
            row = IPC_GET_ARG2(call);
383
            serial_goto(col, row);
384
            lastcol = col;
4167 svoboda 385
            lastrow = row;
3716 svoboda 386
            retval = 0;
387
            break;
388
        case FB_GET_CSIZE:
4457 decky 389
            ipc_answer_2(callid, EOK, scr_width, scr_height);
3716 svoboda 390
            continue;
4644 svoboda 391
        case FB_GET_COLOR_CAP:
392
            ipc_answer_1(callid, EOK, color ? FB_CCAP_INDEXED :
393
                FB_CCAP_STYLE);
394
            continue;
3716 svoboda 395
        case FB_CLEAR:
396
            serial_clrscr();
397
            retval = 0;
398
            break;
399
        case FB_SET_STYLE:
4325 svoboda 400
            cur_attr.t = at_style;
401
            cur_attr.a.s.style = IPC_GET_ARG1(call);
402
            cur_attr.a.i.bg_color = IPC_GET_ARG2(call);
403
            serial_set_attrs(&cur_attr);
404
 
3767 svoboda 405
            retval = 0;
406
            break;
407
        case FB_SET_COLOR:
4325 svoboda 408
            cur_attr.t = at_idx;
409
            cur_attr.a.i.fg_color = IPC_GET_ARG1(call);
410
            cur_attr.a.i.bg_color = IPC_GET_ARG2(call);
411
            cur_attr.a.i.flags = IPC_GET_ARG3(call);
412
            serial_set_attrs(&cur_attr);
3769 svoboda 413
 
3716 svoboda 414
            retval = 0;
415
            break;
3767 svoboda 416
        case FB_SET_RGB_COLOR:
4325 svoboda 417
            cur_attr.t = at_rgb;
418
            cur_attr.a.i.fg_color = IPC_GET_ARG1(call);
419
            cur_attr.a.i.bg_color = IPC_GET_ARG2(call);
420
            serial_set_attrs(&cur_attr);
4141 svoboda 421
 
3767 svoboda 422
            retval = 0;
423
            break;
3716 svoboda 424
        case FB_SCROLL:
425
            i = IPC_GET_ARG1(call);
4141 svoboda 426
            if ((i > scr_height) || (i < -scr_height)) {
3716 svoboda 427
                retval = EINVAL;
428
                break;
429
            }
430
            serial_scroll(i);
4457 decky 431
            serial_goto(lastcol, lastrow);
3716 svoboda 432
            retval = 0;
433
            break;
434
        case FB_CURSOR_VISIBILITY:
435
            if(IPC_GET_ARG1(call))
436
                serial_cursor_enable();
437
            else
438
                serial_cursor_disable();
439
            retval = 0;
440
            break;
4326 svoboda 441
        case FB_SCREEN_YIELD:
4325 svoboda 442
            serial_sgr(SGR_RESET);
443
            serial_puts("\033[2J");
444
            serial_goto(0, 0);
445
            serial_cursor_enable();
446
            retval = 0;
447
            break;
4326 svoboda 448
        case FB_SCREEN_RECLAIM:
449
            serial_clrscr();
450
            serial_set_attrs(&cur_attr);
451
            retval = 0;
452
            break;
3716 svoboda 453
        default:
454
            retval = ENOENT;
455
        }
456
        ipc_answer_0(callid, retval);
457
    }
458
}
459
 
4457 decky 460
/**
3582 rimsky 461
 * @}
3618 rimsky 462
 */