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1 | /* | |
2 | * TI TSC2102 (touchscreen/sensors/audio controller) emulator. | |
3 | * TI TSC2301 (touchscreen/sensors/keypad). | |
4 | * | |
5 | * Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org> | |
6 | * Copyright (C) 2008 Nokia Corporation | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License as | |
10 | * published by the Free Software Foundation; either version 2 or | |
11 | * (at your option) version 3 of the License. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; if not, write to the Free Software Foundation, Inc., | |
20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
21 | */ | |
22 | ||
23 | #include "hw.h" | |
24 | #include "audio/audio.h" | |
25 | #include "qemu-timer.h" | |
26 | #include "console.h" | |
27 | #include "omap.h" /* For I2SCodec and uWireSlave */ | |
28 | #include "devices.h" | |
29 | ||
30 | #define TSC_DATA_REGISTERS_PAGE 0x0 | |
31 | #define TSC_CONTROL_REGISTERS_PAGE 0x1 | |
32 | #define TSC_AUDIO_REGISTERS_PAGE 0x2 | |
33 | ||
34 | #define TSC_VERBOSE | |
35 | ||
36 | #define TSC_CUT_RESOLUTION(value, p) ((value) >> (16 - resolution[p])) | |
37 | ||
38 | typedef struct { | |
39 | qemu_irq pint; | |
40 | qemu_irq kbint; | |
41 | qemu_irq davint; | |
42 | QEMUTimer *timer; | |
43 | QEMUSoundCard card; | |
44 | uWireSlave chip; | |
45 | I2SCodec codec; | |
46 | uint8_t in_fifo[16384]; | |
47 | uint8_t out_fifo[16384]; | |
48 | uint16_t model; | |
49 | ||
50 | int x, y; | |
51 | int pressure; | |
52 | ||
53 | int state, page, offset, irq; | |
54 | uint16_t command, dav; | |
55 | ||
56 | int busy; | |
57 | int enabled; | |
58 | int host_mode; | |
59 | int function; | |
60 | int nextfunction; | |
61 | int precision; | |
62 | int nextprecision; | |
63 | int filter; | |
64 | int pin_func; | |
65 | int ref; | |
66 | int timing; | |
67 | int noise; | |
68 | ||
69 | uint16_t audio_ctrl1; | |
70 | uint16_t audio_ctrl2; | |
71 | uint16_t audio_ctrl3; | |
72 | uint16_t pll[3]; | |
73 | uint16_t volume; | |
74 | int64_t volume_change; | |
75 | int softstep; | |
76 | uint16_t dac_power; | |
77 | int64_t powerdown; | |
78 | uint16_t filter_data[0x14]; | |
79 | ||
80 | const char *name; | |
81 | SWVoiceIn *adc_voice[1]; | |
82 | SWVoiceOut *dac_voice[1]; | |
83 | int i2s_rx_rate; | |
84 | int i2s_tx_rate; | |
85 | ||
86 | int tr[8]; | |
87 | ||
88 | struct { | |
89 | uint16_t down; | |
90 | uint16_t mask; | |
91 | int scan; | |
92 | int debounce; | |
93 | int mode; | |
94 | int intr; | |
95 | } kb; | |
96 | } TSC210xState; | |
97 | ||
98 | static const int resolution[4] = { 12, 8, 10, 12 }; | |
99 | ||
100 | #define TSC_MODE_NO_SCAN 0x0 | |
101 | #define TSC_MODE_XY_SCAN 0x1 | |
102 | #define TSC_MODE_XYZ_SCAN 0x2 | |
103 | #define TSC_MODE_X 0x3 | |
104 | #define TSC_MODE_Y 0x4 | |
105 | #define TSC_MODE_Z 0x5 | |
106 | #define TSC_MODE_BAT1 0x6 | |
107 | #define TSC_MODE_BAT2 0x7 | |
108 | #define TSC_MODE_AUX 0x8 | |
109 | #define TSC_MODE_AUX_SCAN 0x9 | |
110 | #define TSC_MODE_TEMP1 0xa | |
111 | #define TSC_MODE_PORT_SCAN 0xb | |
112 | #define TSC_MODE_TEMP2 0xc | |
113 | #define TSC_MODE_XX_DRV 0xd | |
114 | #define TSC_MODE_YY_DRV 0xe | |
115 | #define TSC_MODE_YX_DRV 0xf | |
116 | ||
117 | static const uint16_t mode_regs[16] = { | |
118 | 0x0000, /* No scan */ | |
119 | 0x0600, /* X, Y scan */ | |
120 | 0x0780, /* X, Y, Z scan */ | |
121 | 0x0400, /* X */ | |
122 | 0x0200, /* Y */ | |
123 | 0x0180, /* Z */ | |
124 | 0x0040, /* BAT1 */ | |
125 | 0x0030, /* BAT2 */ | |
126 | 0x0010, /* AUX */ | |
127 | 0x0010, /* AUX scan */ | |
128 | 0x0004, /* TEMP1 */ | |
129 | 0x0070, /* Port scan */ | |
130 | 0x0002, /* TEMP2 */ | |
131 | 0x0000, /* X+, X- drivers */ | |
132 | 0x0000, /* Y+, Y- drivers */ | |
133 | 0x0000, /* Y+, X- drivers */ | |
134 | }; | |
135 | ||
136 | #define X_TRANSFORM(s) \ | |
137 | ((s->y * s->tr[0] - s->x * s->tr[1]) / s->tr[2] + s->tr[3]) | |
138 | #define Y_TRANSFORM(s) \ | |
139 | ((s->y * s->tr[4] - s->x * s->tr[5]) / s->tr[6] + s->tr[7]) | |
140 | #define Z1_TRANSFORM(s) \ | |
141 | ((400 - ((s)->x >> 7) + ((s)->pressure << 10)) << 4) | |
142 | #define Z2_TRANSFORM(s) \ | |
143 | ((4000 + ((s)->y >> 7) - ((s)->pressure << 10)) << 4) | |
144 | ||
145 | #define BAT1_VAL 0x8660 | |
146 | #define BAT2_VAL 0x0000 | |
147 | #define AUX1_VAL 0x35c0 | |
148 | #define AUX2_VAL 0xffff | |
149 | #define TEMP1_VAL 0x8c70 | |
150 | #define TEMP2_VAL 0xa5b0 | |
151 | ||
152 | #define TSC_POWEROFF_DELAY 50 | |
153 | #define TSC_SOFTSTEP_DELAY 50 | |
154 | ||
155 | static void tsc210x_reset(TSC210xState *s) | |
156 | { | |
157 | s->state = 0; | |
158 | s->pin_func = 2; | |
159 | s->enabled = 0; | |
160 | s->busy = 0; | |
161 | s->nextfunction = 0; | |
162 | s->ref = 0; | |
163 | s->timing = 0; | |
164 | s->irq = 0; | |
165 | s->dav = 0; | |
166 | ||
167 | s->audio_ctrl1 = 0x0000; | |
168 | s->audio_ctrl2 = 0x4410; | |
169 | s->audio_ctrl3 = 0x0000; | |
170 | s->pll[0] = 0x1004; | |
171 | s->pll[1] = 0x0000; | |
172 | s->pll[2] = 0x1fff; | |
173 | s->volume = 0xffff; | |
174 | s->dac_power = 0x8540; | |
175 | s->softstep = 1; | |
176 | s->volume_change = 0; | |
177 | s->powerdown = 0; | |
178 | s->filter_data[0x00] = 0x6be3; | |
179 | s->filter_data[0x01] = 0x9666; | |
180 | s->filter_data[0x02] = 0x675d; | |
181 | s->filter_data[0x03] = 0x6be3; | |
182 | s->filter_data[0x04] = 0x9666; | |
183 | s->filter_data[0x05] = 0x675d; | |
184 | s->filter_data[0x06] = 0x7d83; | |
185 | s->filter_data[0x07] = 0x84ee; | |
186 | s->filter_data[0x08] = 0x7d83; | |
187 | s->filter_data[0x09] = 0x84ee; | |
188 | s->filter_data[0x0a] = 0x6be3; | |
189 | s->filter_data[0x0b] = 0x9666; | |
190 | s->filter_data[0x0c] = 0x675d; | |
191 | s->filter_data[0x0d] = 0x6be3; | |
192 | s->filter_data[0x0e] = 0x9666; | |
193 | s->filter_data[0x0f] = 0x675d; | |
194 | s->filter_data[0x10] = 0x7d83; | |
195 | s->filter_data[0x11] = 0x84ee; | |
196 | s->filter_data[0x12] = 0x7d83; | |
197 | s->filter_data[0x13] = 0x84ee; | |
198 | ||
199 | s->i2s_tx_rate = 0; | |
200 | s->i2s_rx_rate = 0; | |
201 | ||
202 | s->kb.scan = 1; | |
203 | s->kb.debounce = 0; | |
204 | s->kb.mask = 0x0000; | |
205 | s->kb.mode = 3; | |
206 | s->kb.intr = 0; | |
207 | ||
208 | qemu_set_irq(s->pint, !s->irq); | |
209 | qemu_set_irq(s->davint, !s->dav); | |
210 | qemu_irq_raise(s->kbint); | |
211 | } | |
212 | ||
213 | typedef struct { | |
214 | int rate; | |
215 | int dsor; | |
216 | int fsref; | |
217 | } TSC210xRateInfo; | |
218 | ||
219 | /* { rate, dsor, fsref } */ | |
220 | static const TSC210xRateInfo tsc2101_rates[] = { | |
221 | /* Fsref / 6.0 */ | |
222 | { 7350, 7, 1 }, | |
223 | { 8000, 7, 0 }, | |
224 | /* Fsref / 5.5 */ | |
225 | { 8018, 6, 1 }, | |
226 | { 8727, 6, 0 }, | |
227 | /* Fsref / 5.0 */ | |
228 | { 8820, 5, 1 }, | |
229 | { 9600, 5, 0 }, | |
230 | /* Fsref / 4.0 */ | |
231 | { 11025, 4, 1 }, | |
232 | { 12000, 4, 0 }, | |
233 | /* Fsref / 3.0 */ | |
234 | { 14700, 3, 1 }, | |
235 | { 16000, 3, 0 }, | |
236 | /* Fsref / 2.0 */ | |
237 | { 22050, 2, 1 }, | |
238 | { 24000, 2, 0 }, | |
239 | /* Fsref / 1.5 */ | |
240 | { 29400, 1, 1 }, | |
241 | { 32000, 1, 0 }, | |
242 | /* Fsref */ | |
243 | { 44100, 0, 1 }, | |
244 | { 48000, 0, 0 }, | |
245 | ||
246 | { 0, 0, 0 }, | |
247 | }; | |
248 | ||
249 | /* { rate, dsor, fsref } */ | |
250 | static const TSC210xRateInfo tsc2102_rates[] = { | |
251 | /* Fsref / 6.0 */ | |
252 | { 7350, 63, 1 }, | |
253 | { 8000, 63, 0 }, | |
254 | /* Fsref / 6.0 */ | |
255 | { 7350, 54, 1 }, | |
256 | { 8000, 54, 0 }, | |
257 | /* Fsref / 5.0 */ | |
258 | { 8820, 45, 1 }, | |
259 | { 9600, 45, 0 }, | |
260 | /* Fsref / 4.0 */ | |
261 | { 11025, 36, 1 }, | |
262 | { 12000, 36, 0 }, | |
263 | /* Fsref / 3.0 */ | |
264 | { 14700, 27, 1 }, | |
265 | { 16000, 27, 0 }, | |
266 | /* Fsref / 2.0 */ | |
267 | { 22050, 18, 1 }, | |
268 | { 24000, 18, 0 }, | |
269 | /* Fsref / 1.5 */ | |
270 | { 29400, 9, 1 }, | |
271 | { 32000, 9, 0 }, | |
272 | /* Fsref */ | |
273 | { 44100, 0, 1 }, | |
274 | { 48000, 0, 0 }, | |
275 | ||
276 | { 0, 0, 0 }, | |
277 | }; | |
278 | ||
279 | static inline void tsc210x_out_flush(TSC210xState *s, int len) | |
280 | { | |
281 | uint8_t *data = s->codec.out.fifo + s->codec.out.start; | |
282 | uint8_t *end = data + len; | |
283 | ||
284 | while (data < end) | |
285 | data += AUD_write(s->dac_voice[0], data, end - data) ?: (end - data); | |
286 | ||
287 | s->codec.out.len -= len; | |
288 | if (s->codec.out.len) | |
289 | memmove(s->codec.out.fifo, end, s->codec.out.len); | |
290 | s->codec.out.start = 0; | |
291 | } | |
292 | ||
293 | static void tsc210x_audio_out_cb(TSC210xState *s, int free_b) | |
294 | { | |
295 | if (s->codec.out.len >= free_b) { | |
296 | tsc210x_out_flush(s, free_b); | |
297 | return; | |
298 | } | |
299 | ||
300 | s->codec.out.size = MIN(free_b, 16384); | |
301 | qemu_irq_raise(s->codec.tx_start); | |
302 | } | |
303 | ||
304 | static void tsc2102_audio_rate_update(TSC210xState *s) | |
305 | { | |
306 | const TSC210xRateInfo *rate; | |
307 | ||
308 | s->codec.tx_rate = 0; | |
309 | s->codec.rx_rate = 0; | |
310 | if (s->dac_power & (1 << 15)) /* PWDNC */ | |
311 | return; | |
312 | ||
313 | for (rate = tsc2102_rates; rate->rate; rate ++) | |
314 | if (rate->dsor == (s->audio_ctrl1 & 0x3f) && /* DACFS */ | |
315 | rate->fsref == ((s->audio_ctrl3 >> 13) & 1))/* REFFS */ | |
316 | break; | |
317 | if (!rate->rate) { | |
318 | printf("%s: unknown sampling rate configured\n", __FUNCTION__); | |
319 | return; | |
320 | } | |
321 | ||
322 | s->codec.tx_rate = rate->rate; | |
323 | } | |
324 | ||
325 | static void tsc2102_audio_output_update(TSC210xState *s) | |
326 | { | |
327 | int enable; | |
328 | struct audsettings fmt; | |
329 | ||
330 | if (s->dac_voice[0]) { | |
331 | tsc210x_out_flush(s, s->codec.out.len); | |
332 | s->codec.out.size = 0; | |
333 | AUD_set_active_out(s->dac_voice[0], 0); | |
334 | AUD_close_out(&s->card, s->dac_voice[0]); | |
335 | s->dac_voice[0] = 0; | |
336 | } | |
337 | s->codec.cts = 0; | |
338 | ||
339 | enable = | |
340 | (~s->dac_power & (1 << 15)) && /* PWDNC */ | |
341 | (~s->dac_power & (1 << 10)); /* DAPWDN */ | |
342 | if (!enable || !s->codec.tx_rate) | |
343 | return; | |
344 | ||
345 | /* Force our own sampling rate even in slave DAC mode */ | |
346 | fmt.endianness = 0; | |
347 | fmt.nchannels = 2; | |
348 | fmt.freq = s->codec.tx_rate; | |
349 | fmt.fmt = AUD_FMT_S16; | |
350 | ||
351 | s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0], | |
352 | "tsc2102.sink", s, (void *) tsc210x_audio_out_cb, &fmt); | |
353 | if (s->dac_voice[0]) { | |
354 | s->codec.cts = 1; | |
355 | AUD_set_active_out(s->dac_voice[0], 1); | |
356 | } | |
357 | } | |
358 | ||
359 | static uint16_t tsc2102_data_register_read(TSC210xState *s, int reg) | |
360 | { | |
361 | switch (reg) { | |
362 | case 0x00: /* X */ | |
363 | s->dav &= 0xfbff; | |
364 | return TSC_CUT_RESOLUTION(X_TRANSFORM(s), s->precision) + | |
365 | (s->noise & 3); | |
366 | ||
367 | case 0x01: /* Y */ | |
368 | s->noise ++; | |
369 | s->dav &= 0xfdff; | |
370 | return TSC_CUT_RESOLUTION(Y_TRANSFORM(s), s->precision) ^ | |
371 | (s->noise & 3); | |
372 | ||
373 | case 0x02: /* Z1 */ | |
374 | s->dav &= 0xfeff; | |
375 | return TSC_CUT_RESOLUTION(Z1_TRANSFORM(s), s->precision) - | |
376 | (s->noise & 3); | |
377 | ||
378 | case 0x03: /* Z2 */ | |
379 | s->dav &= 0xff7f; | |
380 | return TSC_CUT_RESOLUTION(Z2_TRANSFORM(s), s->precision) | | |
381 | (s->noise & 3); | |
382 | ||
383 | case 0x04: /* KPData */ | |
384 | if ((s->model & 0xff00) == 0x2300) { | |
385 | if (s->kb.intr && (s->kb.mode & 2)) { | |
386 | s->kb.intr = 0; | |
387 | qemu_irq_raise(s->kbint); | |
388 | } | |
389 | return s->kb.down; | |
390 | } | |
391 | ||
392 | return 0xffff; | |
393 | ||
394 | case 0x05: /* BAT1 */ | |
395 | s->dav &= 0xffbf; | |
396 | return TSC_CUT_RESOLUTION(BAT1_VAL, s->precision) + | |
397 | (s->noise & 6); | |
398 | ||
399 | case 0x06: /* BAT2 */ | |
400 | s->dav &= 0xffdf; | |
401 | return TSC_CUT_RESOLUTION(BAT2_VAL, s->precision); | |
402 | ||
403 | case 0x07: /* AUX1 */ | |
404 | s->dav &= 0xffef; | |
405 | return TSC_CUT_RESOLUTION(AUX1_VAL, s->precision); | |
406 | ||
407 | case 0x08: /* AUX2 */ | |
408 | s->dav &= 0xfff7; | |
409 | return 0xffff; | |
410 | ||
411 | case 0x09: /* TEMP1 */ | |
412 | s->dav &= 0xfffb; | |
413 | return TSC_CUT_RESOLUTION(TEMP1_VAL, s->precision) - | |
414 | (s->noise & 5); | |
415 | ||
416 | case 0x0a: /* TEMP2 */ | |
417 | s->dav &= 0xfffd; | |
418 | return TSC_CUT_RESOLUTION(TEMP2_VAL, s->precision) ^ | |
419 | (s->noise & 3); | |
420 | ||
421 | case 0x0b: /* DAC */ | |
422 | s->dav &= 0xfffe; | |
423 | return 0xffff; | |
424 | ||
425 | default: | |
426 | #ifdef TSC_VERBOSE | |
427 | fprintf(stderr, "tsc2102_data_register_read: " | |
428 | "no such register: 0x%02x\n", reg); | |
429 | #endif | |
430 | return 0xffff; | |
431 | } | |
432 | } | |
433 | ||
434 | static uint16_t tsc2102_control_register_read( | |
435 | TSC210xState *s, int reg) | |
436 | { | |
437 | switch (reg) { | |
438 | case 0x00: /* TSC ADC */ | |
439 | return (s->pressure << 15) | ((!s->busy) << 14) | | |
440 | (s->nextfunction << 10) | (s->nextprecision << 8) | s->filter; | |
441 | ||
442 | case 0x01: /* Status / Keypad Control */ | |
443 | if ((s->model & 0xff00) == 0x2100) | |
444 | return (s->pin_func << 14) | ((!s->enabled) << 13) | | |
445 | (s->host_mode << 12) | ((!!s->dav) << 11) | s->dav; | |
446 | else | |
447 | return (s->kb.intr << 15) | ((s->kb.scan || !s->kb.down) << 14) | | |
448 | (s->kb.debounce << 11); | |
449 | ||
450 | case 0x02: /* DAC Control */ | |
451 | if ((s->model & 0xff00) == 0x2300) | |
452 | return s->dac_power & 0x8000; | |
453 | else | |
454 | goto bad_reg; | |
455 | ||
456 | case 0x03: /* Reference */ | |
457 | return s->ref; | |
458 | ||
459 | case 0x04: /* Reset */ | |
460 | return 0xffff; | |
461 | ||
462 | case 0x05: /* Configuration */ | |
463 | return s->timing; | |
464 | ||
465 | case 0x06: /* Secondary configuration */ | |
466 | if ((s->model & 0xff00) == 0x2100) | |
467 | goto bad_reg; | |
468 | return ((!s->dav) << 15) | ((s->kb.mode & 1) << 14) | s->pll[2]; | |
469 | ||
470 | case 0x10: /* Keypad Mask */ | |
471 | if ((s->model & 0xff00) == 0x2100) | |
472 | goto bad_reg; | |
473 | return s->kb.mask; | |
474 | ||
475 | default: | |
476 | bad_reg: | |
477 | #ifdef TSC_VERBOSE | |
478 | fprintf(stderr, "tsc2102_control_register_read: " | |
479 | "no such register: 0x%02x\n", reg); | |
480 | #endif | |
481 | return 0xffff; | |
482 | } | |
483 | } | |
484 | ||
485 | static uint16_t tsc2102_audio_register_read(TSC210xState *s, int reg) | |
486 | { | |
487 | int l_ch, r_ch; | |
488 | uint16_t val; | |
489 | ||
490 | switch (reg) { | |
491 | case 0x00: /* Audio Control 1 */ | |
492 | return s->audio_ctrl1; | |
493 | ||
494 | case 0x01: | |
495 | return 0xff00; | |
496 | ||
497 | case 0x02: /* DAC Volume Control */ | |
498 | return s->volume; | |
499 | ||
500 | case 0x03: | |
501 | return 0x8b00; | |
502 | ||
503 | case 0x04: /* Audio Control 2 */ | |
504 | l_ch = 1; | |
505 | r_ch = 1; | |
506 | if (s->softstep && !(s->dac_power & (1 << 10))) { | |
507 | l_ch = (qemu_get_clock(vm_clock) > | |
508 | s->volume_change + TSC_SOFTSTEP_DELAY); | |
509 | r_ch = (qemu_get_clock(vm_clock) > | |
510 | s->volume_change + TSC_SOFTSTEP_DELAY); | |
511 | } | |
512 | ||
513 | return s->audio_ctrl2 | (l_ch << 3) | (r_ch << 2); | |
514 | ||
515 | case 0x05: /* Stereo DAC Power Control */ | |
516 | return 0x2aa0 | s->dac_power | | |
517 | (((s->dac_power & (1 << 10)) && | |
518 | (qemu_get_clock(vm_clock) > | |
519 | s->powerdown + TSC_POWEROFF_DELAY)) << 6); | |
520 | ||
521 | case 0x06: /* Audio Control 3 */ | |
522 | val = s->audio_ctrl3 | 0x0001; | |
523 | s->audio_ctrl3 &= 0xff3f; | |
524 | return val; | |
525 | ||
526 | case 0x07: /* LCH_BASS_BOOST_N0 */ | |
527 | case 0x08: /* LCH_BASS_BOOST_N1 */ | |
528 | case 0x09: /* LCH_BASS_BOOST_N2 */ | |
529 | case 0x0a: /* LCH_BASS_BOOST_N3 */ | |
530 | case 0x0b: /* LCH_BASS_BOOST_N4 */ | |
531 | case 0x0c: /* LCH_BASS_BOOST_N5 */ | |
532 | case 0x0d: /* LCH_BASS_BOOST_D1 */ | |
533 | case 0x0e: /* LCH_BASS_BOOST_D2 */ | |
534 | case 0x0f: /* LCH_BASS_BOOST_D4 */ | |
535 | case 0x10: /* LCH_BASS_BOOST_D5 */ | |
536 | case 0x11: /* RCH_BASS_BOOST_N0 */ | |
537 | case 0x12: /* RCH_BASS_BOOST_N1 */ | |
538 | case 0x13: /* RCH_BASS_BOOST_N2 */ | |
539 | case 0x14: /* RCH_BASS_BOOST_N3 */ | |
540 | case 0x15: /* RCH_BASS_BOOST_N4 */ | |
541 | case 0x16: /* RCH_BASS_BOOST_N5 */ | |
542 | case 0x17: /* RCH_BASS_BOOST_D1 */ | |
543 | case 0x18: /* RCH_BASS_BOOST_D2 */ | |
544 | case 0x19: /* RCH_BASS_BOOST_D4 */ | |
545 | case 0x1a: /* RCH_BASS_BOOST_D5 */ | |
546 | return s->filter_data[reg - 0x07]; | |
547 | ||
548 | case 0x1b: /* PLL Programmability 1 */ | |
549 | return s->pll[0]; | |
550 | ||
551 | case 0x1c: /* PLL Programmability 2 */ | |
552 | return s->pll[1]; | |
553 | ||
554 | case 0x1d: /* Audio Control 4 */ | |
555 | return (!s->softstep) << 14; | |
556 | ||
557 | default: | |
558 | #ifdef TSC_VERBOSE | |
559 | fprintf(stderr, "tsc2102_audio_register_read: " | |
560 | "no such register: 0x%02x\n", reg); | |
561 | #endif | |
562 | return 0xffff; | |
563 | } | |
564 | } | |
565 | ||
566 | static void tsc2102_data_register_write( | |
567 | TSC210xState *s, int reg, uint16_t value) | |
568 | { | |
569 | switch (reg) { | |
570 | case 0x00: /* X */ | |
571 | case 0x01: /* Y */ | |
572 | case 0x02: /* Z1 */ | |
573 | case 0x03: /* Z2 */ | |
574 | case 0x05: /* BAT1 */ | |
575 | case 0x06: /* BAT2 */ | |
576 | case 0x07: /* AUX1 */ | |
577 | case 0x08: /* AUX2 */ | |
578 | case 0x09: /* TEMP1 */ | |
579 | case 0x0a: /* TEMP2 */ | |
580 | return; | |
581 | ||
582 | default: | |
583 | #ifdef TSC_VERBOSE | |
584 | fprintf(stderr, "tsc2102_data_register_write: " | |
585 | "no such register: 0x%02x\n", reg); | |
586 | #endif | |
587 | } | |
588 | } | |
589 | ||
590 | static void tsc2102_control_register_write( | |
591 | TSC210xState *s, int reg, uint16_t value) | |
592 | { | |
593 | switch (reg) { | |
594 | case 0x00: /* TSC ADC */ | |
595 | s->host_mode = value >> 15; | |
596 | s->enabled = !(value & 0x4000); | |
597 | if (s->busy && !s->enabled) | |
598 | qemu_del_timer(s->timer); | |
599 | s->busy &= s->enabled; | |
600 | s->nextfunction = (value >> 10) & 0xf; | |
601 | s->nextprecision = (value >> 8) & 3; | |
602 | s->filter = value & 0xff; | |
603 | return; | |
604 | ||
605 | case 0x01: /* Status / Keypad Control */ | |
606 | if ((s->model & 0xff00) == 0x2100) | |
607 | s->pin_func = value >> 14; | |
608 | else { | |
609 | s->kb.scan = (value >> 14) & 1; | |
610 | s->kb.debounce = (value >> 11) & 7; | |
611 | if (s->kb.intr && s->kb.scan) { | |
612 | s->kb.intr = 0; | |
613 | qemu_irq_raise(s->kbint); | |
614 | } | |
615 | } | |
616 | return; | |
617 | ||
618 | case 0x02: /* DAC Control */ | |
619 | if ((s->model & 0xff00) == 0x2300) { | |
620 | s->dac_power &= 0x7fff; | |
621 | s->dac_power |= 0x8000 & value; | |
622 | } else | |
623 | goto bad_reg; | |
624 | break; | |
625 | ||
626 | case 0x03: /* Reference */ | |
627 | s->ref = value & 0x1f; | |
628 | return; | |
629 | ||
630 | case 0x04: /* Reset */ | |
631 | if (value == 0xbb00) { | |
632 | if (s->busy) | |
633 | qemu_del_timer(s->timer); | |
634 | tsc210x_reset(s); | |
635 | #ifdef TSC_VERBOSE | |
636 | } else { | |
637 | fprintf(stderr, "tsc2102_control_register_write: " | |
638 | "wrong value written into RESET\n"); | |
639 | #endif | |
640 | } | |
641 | return; | |
642 | ||
643 | case 0x05: /* Configuration */ | |
644 | s->timing = value & 0x3f; | |
645 | #ifdef TSC_VERBOSE | |
646 | if (value & ~0x3f) | |
647 | fprintf(stderr, "tsc2102_control_register_write: " | |
648 | "wrong value written into CONFIG\n"); | |
649 | #endif | |
650 | return; | |
651 | ||
652 | case 0x06: /* Secondary configuration */ | |
653 | if ((s->model & 0xff00) == 0x2100) | |
654 | goto bad_reg; | |
655 | s->kb.mode = value >> 14; | |
656 | s->pll[2] = value & 0x3ffff; | |
657 | return; | |
658 | ||
659 | case 0x10: /* Keypad Mask */ | |
660 | if ((s->model & 0xff00) == 0x2100) | |
661 | goto bad_reg; | |
662 | s->kb.mask = value; | |
663 | return; | |
664 | ||
665 | default: | |
666 | bad_reg: | |
667 | #ifdef TSC_VERBOSE | |
668 | fprintf(stderr, "tsc2102_control_register_write: " | |
669 | "no such register: 0x%02x\n", reg); | |
670 | #endif | |
671 | } | |
672 | } | |
673 | ||
674 | static void tsc2102_audio_register_write( | |
675 | TSC210xState *s, int reg, uint16_t value) | |
676 | { | |
677 | switch (reg) { | |
678 | case 0x00: /* Audio Control 1 */ | |
679 | s->audio_ctrl1 = value & 0x0f3f; | |
680 | #ifdef TSC_VERBOSE | |
681 | if ((value & ~0x0f3f) || ((value & 7) != ((value >> 3) & 7))) | |
682 | fprintf(stderr, "tsc2102_audio_register_write: " | |
683 | "wrong value written into Audio 1\n"); | |
684 | #endif | |
685 | tsc2102_audio_rate_update(s); | |
686 | tsc2102_audio_output_update(s); | |
687 | return; | |
688 | ||
689 | case 0x01: | |
690 | #ifdef TSC_VERBOSE | |
691 | if (value != 0xff00) | |
692 | fprintf(stderr, "tsc2102_audio_register_write: " | |
693 | "wrong value written into reg 0x01\n"); | |
694 | #endif | |
695 | return; | |
696 | ||
697 | case 0x02: /* DAC Volume Control */ | |
698 | s->volume = value; | |
699 | s->volume_change = qemu_get_clock(vm_clock); | |
700 | return; | |
701 | ||
702 | case 0x03: | |
703 | #ifdef TSC_VERBOSE | |
704 | if (value != 0x8b00) | |
705 | fprintf(stderr, "tsc2102_audio_register_write: " | |
706 | "wrong value written into reg 0x03\n"); | |
707 | #endif | |
708 | return; | |
709 | ||
710 | case 0x04: /* Audio Control 2 */ | |
711 | s->audio_ctrl2 = value & 0xf7f2; | |
712 | #ifdef TSC_VERBOSE | |
713 | if (value & ~0xf7fd) | |
714 | fprintf(stderr, "tsc2102_audio_register_write: " | |
715 | "wrong value written into Audio 2\n"); | |
716 | #endif | |
717 | return; | |
718 | ||
719 | case 0x05: /* Stereo DAC Power Control */ | |
720 | if ((value & ~s->dac_power) & (1 << 10)) | |
721 | s->powerdown = qemu_get_clock(vm_clock); | |
722 | ||
723 | s->dac_power = value & 0x9543; | |
724 | #ifdef TSC_VERBOSE | |
725 | if ((value & ~0x9543) != 0x2aa0) | |
726 | fprintf(stderr, "tsc2102_audio_register_write: " | |
727 | "wrong value written into Power\n"); | |
728 | #endif | |
729 | tsc2102_audio_rate_update(s); | |
730 | tsc2102_audio_output_update(s); | |
731 | return; | |
732 | ||
733 | case 0x06: /* Audio Control 3 */ | |
734 | s->audio_ctrl3 &= 0x00c0; | |
735 | s->audio_ctrl3 |= value & 0xf800; | |
736 | #ifdef TSC_VERBOSE | |
737 | if (value & ~0xf8c7) | |
738 | fprintf(stderr, "tsc2102_audio_register_write: " | |
739 | "wrong value written into Audio 3\n"); | |
740 | #endif | |
741 | tsc2102_audio_output_update(s); | |
742 | return; | |
743 | ||
744 | case 0x07: /* LCH_BASS_BOOST_N0 */ | |
745 | case 0x08: /* LCH_BASS_BOOST_N1 */ | |
746 | case 0x09: /* LCH_BASS_BOOST_N2 */ | |
747 | case 0x0a: /* LCH_BASS_BOOST_N3 */ | |
748 | case 0x0b: /* LCH_BASS_BOOST_N4 */ | |
749 | case 0x0c: /* LCH_BASS_BOOST_N5 */ | |
750 | case 0x0d: /* LCH_BASS_BOOST_D1 */ | |
751 | case 0x0e: /* LCH_BASS_BOOST_D2 */ | |
752 | case 0x0f: /* LCH_BASS_BOOST_D4 */ | |
753 | case 0x10: /* LCH_BASS_BOOST_D5 */ | |
754 | case 0x11: /* RCH_BASS_BOOST_N0 */ | |
755 | case 0x12: /* RCH_BASS_BOOST_N1 */ | |
756 | case 0x13: /* RCH_BASS_BOOST_N2 */ | |
757 | case 0x14: /* RCH_BASS_BOOST_N3 */ | |
758 | case 0x15: /* RCH_BASS_BOOST_N4 */ | |
759 | case 0x16: /* RCH_BASS_BOOST_N5 */ | |
760 | case 0x17: /* RCH_BASS_BOOST_D1 */ | |
761 | case 0x18: /* RCH_BASS_BOOST_D2 */ | |
762 | case 0x19: /* RCH_BASS_BOOST_D4 */ | |
763 | case 0x1a: /* RCH_BASS_BOOST_D5 */ | |
764 | s->filter_data[reg - 0x07] = value; | |
765 | return; | |
766 | ||
767 | case 0x1b: /* PLL Programmability 1 */ | |
768 | s->pll[0] = value & 0xfffc; | |
769 | #ifdef TSC_VERBOSE | |
770 | if (value & ~0xfffc) | |
771 | fprintf(stderr, "tsc2102_audio_register_write: " | |
772 | "wrong value written into PLL 1\n"); | |
773 | #endif | |
774 | return; | |
775 | ||
776 | case 0x1c: /* PLL Programmability 2 */ | |
777 | s->pll[1] = value & 0xfffc; | |
778 | #ifdef TSC_VERBOSE | |
779 | if (value & ~0xfffc) | |
780 | fprintf(stderr, "tsc2102_audio_register_write: " | |
781 | "wrong value written into PLL 2\n"); | |
782 | #endif | |
783 | return; | |
784 | ||
785 | case 0x1d: /* Audio Control 4 */ | |
786 | s->softstep = !(value & 0x4000); | |
787 | #ifdef TSC_VERBOSE | |
788 | if (value & ~0x4000) | |
789 | fprintf(stderr, "tsc2102_audio_register_write: " | |
790 | "wrong value written into Audio 4\n"); | |
791 | #endif | |
792 | return; | |
793 | ||
794 | default: | |
795 | #ifdef TSC_VERBOSE | |
796 | fprintf(stderr, "tsc2102_audio_register_write: " | |
797 | "no such register: 0x%02x\n", reg); | |
798 | #endif | |
799 | } | |
800 | } | |
801 | ||
802 | /* This handles most of the chip logic. */ | |
803 | static void tsc210x_pin_update(TSC210xState *s) | |
804 | { | |
805 | int64_t expires; | |
806 | int pin_state; | |
807 | ||
808 | switch (s->pin_func) { | |
809 | case 0: | |
810 | pin_state = s->pressure; | |
811 | break; | |
812 | case 1: | |
813 | pin_state = !!s->dav; | |
814 | break; | |
815 | case 2: | |
816 | default: | |
817 | pin_state = s->pressure && !s->dav; | |
818 | } | |
819 | ||
820 | if (!s->enabled) | |
821 | pin_state = 0; | |
822 | ||
823 | if (pin_state != s->irq) { | |
824 | s->irq = pin_state; | |
825 | qemu_set_irq(s->pint, !s->irq); | |
826 | } | |
827 | ||
828 | switch (s->nextfunction) { | |
829 | case TSC_MODE_XY_SCAN: | |
830 | case TSC_MODE_XYZ_SCAN: | |
831 | if (!s->pressure) | |
832 | return; | |
833 | break; | |
834 | ||
835 | case TSC_MODE_X: | |
836 | case TSC_MODE_Y: | |
837 | case TSC_MODE_Z: | |
838 | if (!s->pressure) | |
839 | return; | |
840 | /* Fall through */ | |
841 | case TSC_MODE_BAT1: | |
842 | case TSC_MODE_BAT2: | |
843 | case TSC_MODE_AUX: | |
844 | case TSC_MODE_TEMP1: | |
845 | case TSC_MODE_TEMP2: | |
846 | if (s->dav) | |
847 | s->enabled = 0; | |
848 | break; | |
849 | ||
850 | case TSC_MODE_AUX_SCAN: | |
851 | case TSC_MODE_PORT_SCAN: | |
852 | break; | |
853 | ||
854 | case TSC_MODE_NO_SCAN: | |
855 | case TSC_MODE_XX_DRV: | |
856 | case TSC_MODE_YY_DRV: | |
857 | case TSC_MODE_YX_DRV: | |
858 | default: | |
859 | return; | |
860 | } | |
861 | ||
862 | if (!s->enabled || s->busy || s->dav) | |
863 | return; | |
864 | ||
865 | s->busy = 1; | |
866 | s->precision = s->nextprecision; | |
867 | s->function = s->nextfunction; | |
868 | expires = qemu_get_clock(vm_clock) + (ticks_per_sec >> 10); | |
869 | qemu_mod_timer(s->timer, expires); | |
870 | } | |
871 | ||
872 | static uint16_t tsc210x_read(TSC210xState *s) | |
873 | { | |
874 | uint16_t ret = 0x0000; | |
875 | ||
876 | if (!s->command) | |
877 | fprintf(stderr, "tsc210x_read: SPI underrun!\n"); | |
878 | ||
879 | switch (s->page) { | |
880 | case TSC_DATA_REGISTERS_PAGE: | |
881 | ret = tsc2102_data_register_read(s, s->offset); | |
882 | if (!s->dav) | |
883 | qemu_irq_raise(s->davint); | |
884 | break; | |
885 | case TSC_CONTROL_REGISTERS_PAGE: | |
886 | ret = tsc2102_control_register_read(s, s->offset); | |
887 | break; | |
888 | case TSC_AUDIO_REGISTERS_PAGE: | |
889 | ret = tsc2102_audio_register_read(s, s->offset); | |
890 | break; | |
891 | default: | |
892 | hw_error("tsc210x_read: wrong memory page\n"); | |
893 | } | |
894 | ||
895 | tsc210x_pin_update(s); | |
896 | ||
897 | /* Allow sequential reads. */ | |
898 | s->offset ++; | |
899 | s->state = 0; | |
900 | return ret; | |
901 | } | |
902 | ||
903 | static void tsc210x_write(TSC210xState *s, uint16_t value) | |
904 | { | |
905 | /* | |
906 | * This is a two-state state machine for reading | |
907 | * command and data every second time. | |
908 | */ | |
909 | if (!s->state) { | |
910 | s->command = value >> 15; | |
911 | s->page = (value >> 11) & 0x0f; | |
912 | s->offset = (value >> 5) & 0x3f; | |
913 | s->state = 1; | |
914 | } else { | |
915 | if (s->command) | |
916 | fprintf(stderr, "tsc210x_write: SPI overrun!\n"); | |
917 | else | |
918 | switch (s->page) { | |
919 | case TSC_DATA_REGISTERS_PAGE: | |
920 | tsc2102_data_register_write(s, s->offset, value); | |
921 | break; | |
922 | case TSC_CONTROL_REGISTERS_PAGE: | |
923 | tsc2102_control_register_write(s, s->offset, value); | |
924 | break; | |
925 | case TSC_AUDIO_REGISTERS_PAGE: | |
926 | tsc2102_audio_register_write(s, s->offset, value); | |
927 | break; | |
928 | default: | |
929 | hw_error("tsc210x_write: wrong memory page\n"); | |
930 | } | |
931 | ||
932 | tsc210x_pin_update(s); | |
933 | s->state = 0; | |
934 | } | |
935 | } | |
936 | ||
937 | uint32_t tsc210x_txrx(void *opaque, uint32_t value, int len) | |
938 | { | |
939 | TSC210xState *s = opaque; | |
940 | uint32_t ret = 0; | |
941 | ||
942 | if (len != 16) | |
943 | hw_error("%s: FIXME: bad SPI word width %i\n", __FUNCTION__, len); | |
944 | ||
945 | /* TODO: sequential reads etc - how do we make sure the host doesn't | |
946 | * unintentionally read out a conversion result from a register while | |
947 | * transmitting the command word of the next command? */ | |
948 | if (!value || (s->state && s->command)) | |
949 | ret = tsc210x_read(s); | |
950 | if (value || (s->state && !s->command)) | |
951 | tsc210x_write(s, value); | |
952 | ||
953 | return ret; | |
954 | } | |
955 | ||
956 | static void tsc210x_timer_tick(void *opaque) | |
957 | { | |
958 | TSC210xState *s = opaque; | |
959 | ||
960 | /* Timer ticked -- a set of conversions has been finished. */ | |
961 | ||
962 | if (!s->busy) | |
963 | return; | |
964 | ||
965 | s->busy = 0; | |
966 | s->dav |= mode_regs[s->function]; | |
967 | tsc210x_pin_update(s); | |
968 | qemu_irq_lower(s->davint); | |
969 | } | |
970 | ||
971 | static void tsc210x_touchscreen_event(void *opaque, | |
972 | int x, int y, int z, int buttons_state) | |
973 | { | |
974 | TSC210xState *s = opaque; | |
975 | int p = s->pressure; | |
976 | ||
977 | if (buttons_state) { | |
978 | s->x = x; | |
979 | s->y = y; | |
980 | } | |
981 | s->pressure = !!buttons_state; | |
982 | ||
983 | /* | |
984 | * Note: We would get better responsiveness in the guest by | |
985 | * signaling TS events immediately, but for now we simulate | |
986 | * the first conversion delay for sake of correctness. | |
987 | */ | |
988 | if (p != s->pressure) | |
989 | tsc210x_pin_update(s); | |
990 | } | |
991 | ||
992 | static void tsc210x_i2s_swallow(TSC210xState *s) | |
993 | { | |
994 | if (s->dac_voice[0]) | |
995 | tsc210x_out_flush(s, s->codec.out.len); | |
996 | else | |
997 | s->codec.out.len = 0; | |
998 | } | |
999 | ||
1000 | static void tsc210x_i2s_set_rate(TSC210xState *s, int in, int out) | |
1001 | { | |
1002 | s->i2s_tx_rate = out; | |
1003 | s->i2s_rx_rate = in; | |
1004 | } | |
1005 | ||
1006 | static void tsc210x_save(QEMUFile *f, void *opaque) | |
1007 | { | |
1008 | TSC210xState *s = (TSC210xState *) opaque; | |
1009 | int64_t now = qemu_get_clock(vm_clock); | |
1010 | int i; | |
1011 | ||
1012 | qemu_put_be16(f, s->x); | |
1013 | qemu_put_be16(f, s->y); | |
1014 | qemu_put_byte(f, s->pressure); | |
1015 | ||
1016 | qemu_put_byte(f, s->state); | |
1017 | qemu_put_byte(f, s->page); | |
1018 | qemu_put_byte(f, s->offset); | |
1019 | qemu_put_byte(f, s->command); | |
1020 | ||
1021 | qemu_put_byte(f, s->irq); | |
1022 | qemu_put_be16s(f, &s->dav); | |
1023 | ||
1024 | qemu_put_timer(f, s->timer); | |
1025 | qemu_put_byte(f, s->enabled); | |
1026 | qemu_put_byte(f, s->host_mode); | |
1027 | qemu_put_byte(f, s->function); | |
1028 | qemu_put_byte(f, s->nextfunction); | |
1029 | qemu_put_byte(f, s->precision); | |
1030 | qemu_put_byte(f, s->nextprecision); | |
1031 | qemu_put_byte(f, s->filter); | |
1032 | qemu_put_byte(f, s->pin_func); | |
1033 | qemu_put_byte(f, s->ref); | |
1034 | qemu_put_byte(f, s->timing); | |
1035 | qemu_put_be32(f, s->noise); | |
1036 | ||
1037 | qemu_put_be16s(f, &s->audio_ctrl1); | |
1038 | qemu_put_be16s(f, &s->audio_ctrl2); | |
1039 | qemu_put_be16s(f, &s->audio_ctrl3); | |
1040 | qemu_put_be16s(f, &s->pll[0]); | |
1041 | qemu_put_be16s(f, &s->pll[1]); | |
1042 | qemu_put_be16s(f, &s->volume); | |
1043 | qemu_put_sbe64(f, (s->volume_change - now)); | |
1044 | qemu_put_sbe64(f, (s->powerdown - now)); | |
1045 | qemu_put_byte(f, s->softstep); | |
1046 | qemu_put_be16s(f, &s->dac_power); | |
1047 | ||
1048 | for (i = 0; i < 0x14; i ++) | |
1049 | qemu_put_be16s(f, &s->filter_data[i]); | |
1050 | } | |
1051 | ||
1052 | static int tsc210x_load(QEMUFile *f, void *opaque, int version_id) | |
1053 | { | |
1054 | TSC210xState *s = (TSC210xState *) opaque; | |
1055 | int64_t now = qemu_get_clock(vm_clock); | |
1056 | int i; | |
1057 | ||
1058 | s->x = qemu_get_be16(f); | |
1059 | s->y = qemu_get_be16(f); | |
1060 | s->pressure = qemu_get_byte(f); | |
1061 | ||
1062 | s->state = qemu_get_byte(f); | |
1063 | s->page = qemu_get_byte(f); | |
1064 | s->offset = qemu_get_byte(f); | |
1065 | s->command = qemu_get_byte(f); | |
1066 | ||
1067 | s->irq = qemu_get_byte(f); | |
1068 | qemu_get_be16s(f, &s->dav); | |
1069 | ||
1070 | qemu_get_timer(f, s->timer); | |
1071 | s->enabled = qemu_get_byte(f); | |
1072 | s->host_mode = qemu_get_byte(f); | |
1073 | s->function = qemu_get_byte(f); | |
1074 | s->nextfunction = qemu_get_byte(f); | |
1075 | s->precision = qemu_get_byte(f); | |
1076 | s->nextprecision = qemu_get_byte(f); | |
1077 | s->filter = qemu_get_byte(f); | |
1078 | s->pin_func = qemu_get_byte(f); | |
1079 | s->ref = qemu_get_byte(f); | |
1080 | s->timing = qemu_get_byte(f); | |
1081 | s->noise = qemu_get_be32(f); | |
1082 | ||
1083 | qemu_get_be16s(f, &s->audio_ctrl1); | |
1084 | qemu_get_be16s(f, &s->audio_ctrl2); | |
1085 | qemu_get_be16s(f, &s->audio_ctrl3); | |
1086 | qemu_get_be16s(f, &s->pll[0]); | |
1087 | qemu_get_be16s(f, &s->pll[1]); | |
1088 | qemu_get_be16s(f, &s->volume); | |
1089 | s->volume_change = qemu_get_sbe64(f) + now; | |
1090 | s->powerdown = qemu_get_sbe64(f) + now; | |
1091 | s->softstep = qemu_get_byte(f); | |
1092 | qemu_get_be16s(f, &s->dac_power); | |
1093 | ||
1094 | for (i = 0; i < 0x14; i ++) | |
1095 | qemu_get_be16s(f, &s->filter_data[i]); | |
1096 | ||
1097 | s->busy = qemu_timer_pending(s->timer); | |
1098 | qemu_set_irq(s->pint, !s->irq); | |
1099 | qemu_set_irq(s->davint, !s->dav); | |
1100 | ||
1101 | return 0; | |
1102 | } | |
1103 | ||
1104 | uWireSlave *tsc2102_init(qemu_irq pint) | |
1105 | { | |
1106 | TSC210xState *s; | |
1107 | ||
1108 | s = (TSC210xState *) | |
1109 | qemu_mallocz(sizeof(TSC210xState)); | |
1110 | memset(s, 0, sizeof(TSC210xState)); | |
1111 | s->x = 160; | |
1112 | s->y = 160; | |
1113 | s->pressure = 0; | |
1114 | s->precision = s->nextprecision = 0; | |
1115 | s->timer = qemu_new_timer(vm_clock, tsc210x_timer_tick, s); | |
1116 | s->pint = pint; | |
1117 | s->model = 0x2102; | |
1118 | s->name = "tsc2102"; | |
1119 | ||
1120 | s->tr[0] = 0; | |
1121 | s->tr[1] = 1; | |
1122 | s->tr[2] = 1; | |
1123 | s->tr[3] = 0; | |
1124 | s->tr[4] = 1; | |
1125 | s->tr[5] = 0; | |
1126 | s->tr[6] = 1; | |
1127 | s->tr[7] = 0; | |
1128 | ||
1129 | s->chip.opaque = s; | |
1130 | s->chip.send = (void *) tsc210x_write; | |
1131 | s->chip.receive = (void *) tsc210x_read; | |
1132 | ||
1133 | s->codec.opaque = s; | |
1134 | s->codec.tx_swallow = (void *) tsc210x_i2s_swallow; | |
1135 | s->codec.set_rate = (void *) tsc210x_i2s_set_rate; | |
1136 | s->codec.in.fifo = s->in_fifo; | |
1137 | s->codec.out.fifo = s->out_fifo; | |
1138 | ||
1139 | tsc210x_reset(s); | |
1140 | ||
1141 | qemu_add_mouse_event_handler(tsc210x_touchscreen_event, s, 1, | |
1142 | "QEMU TSC2102-driven Touchscreen"); | |
1143 | ||
1144 | AUD_register_card(s->name, &s->card); | |
1145 | ||
1146 | qemu_register_reset((void *) tsc210x_reset, 0, s); | |
1147 | register_savevm(s->name, -1, 0, | |
1148 | tsc210x_save, tsc210x_load, s); | |
1149 | ||
1150 | return &s->chip; | |
1151 | } | |
1152 | ||
1153 | uWireSlave *tsc2301_init(qemu_irq penirq, qemu_irq kbirq, qemu_irq dav) | |
1154 | { | |
1155 | TSC210xState *s; | |
1156 | ||
1157 | s = (TSC210xState *) | |
1158 | qemu_mallocz(sizeof(TSC210xState)); | |
1159 | memset(s, 0, sizeof(TSC210xState)); | |
1160 | s->x = 400; | |
1161 | s->y = 240; | |
1162 | s->pressure = 0; | |
1163 | s->precision = s->nextprecision = 0; | |
1164 | s->timer = qemu_new_timer(vm_clock, tsc210x_timer_tick, s); | |
1165 | s->pint = penirq; | |
1166 | s->kbint = kbirq; | |
1167 | s->davint = dav; | |
1168 | s->model = 0x2301; | |
1169 | s->name = "tsc2301"; | |
1170 | ||
1171 | s->tr[0] = 0; | |
1172 | s->tr[1] = 1; | |
1173 | s->tr[2] = 1; | |
1174 | s->tr[3] = 0; | |
1175 | s->tr[4] = 1; | |
1176 | s->tr[5] = 0; | |
1177 | s->tr[6] = 1; | |
1178 | s->tr[7] = 0; | |
1179 | ||
1180 | s->chip.opaque = s; | |
1181 | s->chip.send = (void *) tsc210x_write; | |
1182 | s->chip.receive = (void *) tsc210x_read; | |
1183 | ||
1184 | s->codec.opaque = s; | |
1185 | s->codec.tx_swallow = (void *) tsc210x_i2s_swallow; | |
1186 | s->codec.set_rate = (void *) tsc210x_i2s_set_rate; | |
1187 | s->codec.in.fifo = s->in_fifo; | |
1188 | s->codec.out.fifo = s->out_fifo; | |
1189 | ||
1190 | tsc210x_reset(s); | |
1191 | ||
1192 | qemu_add_mouse_event_handler(tsc210x_touchscreen_event, s, 1, | |
1193 | "QEMU TSC2301-driven Touchscreen"); | |
1194 | ||
1195 | AUD_register_card(s->name, &s->card); | |
1196 | ||
1197 | qemu_register_reset((void *) tsc210x_reset, 0, s); | |
1198 | register_savevm(s->name, -1, 0, tsc210x_save, tsc210x_load, s); | |
1199 | ||
1200 | return &s->chip; | |
1201 | } | |
1202 | ||
1203 | I2SCodec *tsc210x_codec(uWireSlave *chip) | |
1204 | { | |
1205 | TSC210xState *s = (TSC210xState *) chip->opaque; | |
1206 | ||
1207 | return &s->codec; | |
1208 | } | |
1209 | ||
1210 | /* | |
1211 | * Use tslib generated calibration data to generate ADC input values | |
1212 | * from the touchscreen. Assuming 12-bit precision was used during | |
1213 | * tslib calibration. | |
1214 | */ | |
1215 | void tsc210x_set_transform(uWireSlave *chip, | |
1216 | MouseTransformInfo *info) | |
1217 | { | |
1218 | TSC210xState *s = (TSC210xState *) chip->opaque; | |
1219 | #if 0 | |
1220 | int64_t ltr[8]; | |
1221 | ||
1222 | ltr[0] = (int64_t) info->a[1] * info->y; | |
1223 | ltr[1] = (int64_t) info->a[4] * info->x; | |
1224 | ltr[2] = (int64_t) info->a[1] * info->a[3] - | |
1225 | (int64_t) info->a[4] * info->a[0]; | |
1226 | ltr[3] = (int64_t) info->a[2] * info->a[4] - | |
1227 | (int64_t) info->a[5] * info->a[1]; | |
1228 | ltr[4] = (int64_t) info->a[0] * info->y; | |
1229 | ltr[5] = (int64_t) info->a[3] * info->x; | |
1230 | ltr[6] = (int64_t) info->a[4] * info->a[0] - | |
1231 | (int64_t) info->a[1] * info->a[3]; | |
1232 | ltr[7] = (int64_t) info->a[2] * info->a[3] - | |
1233 | (int64_t) info->a[5] * info->a[0]; | |
1234 | ||
1235 | /* Avoid integer overflow */ | |
1236 | s->tr[0] = ltr[0] >> 11; | |
1237 | s->tr[1] = ltr[1] >> 11; | |
1238 | s->tr[2] = muldiv64(ltr[2], 1, info->a[6]); | |
1239 | s->tr[3] = muldiv64(ltr[3], 1 << 4, ltr[2]); | |
1240 | s->tr[4] = ltr[4] >> 11; | |
1241 | s->tr[5] = ltr[5] >> 11; | |
1242 | s->tr[6] = muldiv64(ltr[6], 1, info->a[6]); | |
1243 | s->tr[7] = muldiv64(ltr[7], 1 << 4, ltr[6]); | |
1244 | #else | |
1245 | ||
1246 | /* This version assumes touchscreen X & Y axis are parallel or | |
1247 | * perpendicular to LCD's X & Y axis in some way. */ | |
1248 | if (abs(info->a[0]) > abs(info->a[1])) { | |
1249 | s->tr[0] = 0; | |
1250 | s->tr[1] = -info->a[6] * info->x; | |
1251 | s->tr[2] = info->a[0]; | |
1252 | s->tr[3] = -info->a[2] / info->a[0]; | |
1253 | s->tr[4] = info->a[6] * info->y; | |
1254 | s->tr[5] = 0; | |
1255 | s->tr[6] = info->a[4]; | |
1256 | s->tr[7] = -info->a[5] / info->a[4]; | |
1257 | } else { | |
1258 | s->tr[0] = info->a[6] * info->y; | |
1259 | s->tr[1] = 0; | |
1260 | s->tr[2] = info->a[1]; | |
1261 | s->tr[3] = -info->a[2] / info->a[1]; | |
1262 | s->tr[4] = 0; | |
1263 | s->tr[5] = -info->a[6] * info->x; | |
1264 | s->tr[6] = info->a[3]; | |
1265 | s->tr[7] = -info->a[5] / info->a[3]; | |
1266 | } | |
1267 | ||
1268 | s->tr[0] >>= 11; | |
1269 | s->tr[1] >>= 11; | |
1270 | s->tr[3] <<= 4; | |
1271 | s->tr[4] >>= 11; | |
1272 | s->tr[5] >>= 11; | |
1273 | s->tr[7] <<= 4; | |
1274 | #endif | |
1275 | } | |
1276 | ||
1277 | void tsc210x_key_event(uWireSlave *chip, int key, int down) | |
1278 | { | |
1279 | TSC210xState *s = (TSC210xState *) chip->opaque; | |
1280 | ||
1281 | if (down) | |
1282 | s->kb.down |= 1 << key; | |
1283 | else | |
1284 | s->kb.down &= ~(1 << key); | |
1285 | ||
1286 | if (down && (s->kb.down & ~s->kb.mask) && !s->kb.intr) { | |
1287 | s->kb.intr = 1; | |
1288 | qemu_irq_lower(s->kbint); | |
1289 | } else if (s->kb.intr && !(s->kb.down & ~s->kb.mask) && | |
1290 | !(s->kb.mode & 1)) { | |
1291 | s->kb.intr = 0; | |
1292 | qemu_irq_raise(s->kbint); | |
1293 | } | |
1294 | } |