2 * TI TSC2102 (touchscreen/sensors/audio controller) emulator.
4 * Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org>
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 of
9 * the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 #define TSC_DATA_REGISTERS_PAGE 0x0
25 #define TSC_CONTROL_REGISTERS_PAGE 0x1
26 #define TSC_AUDIO_REGISTERS_PAGE 0x2
30 #define TSC_CUT_RESOLUTION(value, p) ((value) >> (16 - resolution[p]))
32 struct tsc210x_state_s {
36 struct uwire_slave_s chip;
37 struct i2s_codec_s codec;
38 uint8_t in_fifo[16384];
39 uint8_t out_fifo[16384];
44 int state, page, offset, irq;
45 uint16_t command, dav;
65 int64_t volume_change;
69 uint16_t filter_data[0x14];
72 SWVoiceIn *adc_voice[1];
73 SWVoiceOut *dac_voice[1];
79 static const int resolution[4] = { 12, 8, 10, 12 };
81 #define TSC_MODE_NO_SCAN 0x0
82 #define TSC_MODE_XY_SCAN 0x1
83 #define TSC_MODE_XYZ_SCAN 0x2
84 #define TSC_MODE_X 0x3
85 #define TSC_MODE_Y 0x4
86 #define TSC_MODE_Z 0x5
87 #define TSC_MODE_BAT1 0x6
88 #define TSC_MODE_BAT2 0x7
89 #define TSC_MODE_AUX 0x8
90 #define TSC_MODE_AUX_SCAN 0x9
91 #define TSC_MODE_TEMP1 0xa
92 #define TSC_MODE_PORT_SCAN 0xb
93 #define TSC_MODE_TEMP2 0xc
94 #define TSC_MODE_XX_DRV 0xd
95 #define TSC_MODE_YY_DRV 0xe
96 #define TSC_MODE_YX_DRV 0xf
98 static const uint16_t mode_regs[16] = {
100 0x0600, /* X, Y scan */
101 0x0780, /* X, Y, Z scan */
108 0x0010, /* AUX scan */
110 0x0070, /* Port scan */
112 0x0000, /* X+, X- drivers */
113 0x0000, /* Y+, Y- drivers */
114 0x0000, /* Y+, X- drivers */
118 * Convert screen coordinates to arbitrary values that the
119 * touchscreen in my Palm Tungsten E device returns.
120 * This shouldn't really matter (because the guest system
121 * should calibrate the touchscreen anyway), but let's
122 * imitate some real hardware.
124 #define X_TRANSFORM(value) \
125 ((3850 - ((int) (value) * (3850 - 250) / 32768)) << 4)
126 #define Y_TRANSFORM(value) \
127 ((150 + ((int) (value) * (3037 - 150) / 32768)) << 4)
128 #define Z1_TRANSFORM(s) \
129 ((400 - (s)->x + ((s)->pressure << 9)) << 4)
130 #define Z2_TRANSFORM(s) \
131 ((4000 + (s)->y - ((s)->pressure << 10)) << 4)
132 #define BAT1_VAL 0x8660
133 #define BAT2_VAL 0x0000
134 #define AUX1_VAL 0x35c0
135 #define AUX2_VAL 0xffff
136 #define TEMP1_VAL 0x8c70
137 #define TEMP2_VAL 0xa5b0
139 #define TSC_POWEROFF_DELAY 50
140 #define TSC_SOFTSTEP_DELAY 50
142 static void tsc210x_reset(struct tsc210x_state_s *s)
154 s->audio_ctrl1 = 0x0000;
155 s->audio_ctrl2 = 0x4410;
156 s->audio_ctrl3 = 0x0000;
160 s->dac_power = 0x8540;
162 s->volume_change = 0;
164 s->filter_data[0x00] = 0x6be3;
165 s->filter_data[0x01] = 0x9666;
166 s->filter_data[0x02] = 0x675d;
167 s->filter_data[0x03] = 0x6be3;
168 s->filter_data[0x04] = 0x9666;
169 s->filter_data[0x05] = 0x675d;
170 s->filter_data[0x06] = 0x7d83;
171 s->filter_data[0x07] = 0x84ee;
172 s->filter_data[0x08] = 0x7d83;
173 s->filter_data[0x09] = 0x84ee;
174 s->filter_data[0x0a] = 0x6be3;
175 s->filter_data[0x0b] = 0x9666;
176 s->filter_data[0x0c] = 0x675d;
177 s->filter_data[0x0d] = 0x6be3;
178 s->filter_data[0x0e] = 0x9666;
179 s->filter_data[0x0f] = 0x675d;
180 s->filter_data[0x10] = 0x7d83;
181 s->filter_data[0x11] = 0x84ee;
182 s->filter_data[0x12] = 0x7d83;
183 s->filter_data[0x13] = 0x84ee;
188 qemu_set_irq(s->pint, !s->irq);
191 struct tsc210x_rate_info_s {
197 /* { rate, dsor, fsref } */
198 static const struct tsc210x_rate_info_s tsc2101_rates[] = {
227 /* { rate, dsor, fsref } */
228 static const struct tsc210x_rate_info_s tsc2102_rates[] = {
257 static inline void tsc210x_out_flush(struct tsc210x_state_s *s, int len)
259 uint8_t *data = s->codec.out.fifo + s->codec.out.start;
260 uint8_t *end = data + len;
263 data += AUD_write(s->dac_voice[0], data, end - data) ?: (end - data);
265 s->codec.out.len -= len;
266 if (s->codec.out.len)
267 memmove(s->codec.out.fifo, end, s->codec.out.len);
268 s->codec.out.start = 0;
271 static void tsc210x_audio_out_cb(struct tsc210x_state_s *s, int free_b)
273 if (s->codec.out.len >= free_b) {
274 tsc210x_out_flush(s, free_b);
278 s->codec.out.size = MIN(free_b, 16384);
279 qemu_irq_raise(s->codec.tx_start);
282 static void tsc2102_audio_set_format(struct tsc210x_state_s *s)
285 const struct tsc210x_rate_info_s *rate;
288 if (s->dac_voice[0]) {
289 tsc210x_out_flush(s, s->codec.out.len);
290 s->codec.out.size = 0;
291 AUD_set_active_out(s->dac_voice[0], 0);
292 AUD_close_out(&s->card, s->dac_voice[0]);
297 (~s->dac_power & (1 << 15)) && /* PWDNC */
298 (~s->dac_power & (1 << 10)); /* DAPWDN */
302 for (rate = tsc2102_rates; rate->rate; rate ++)
303 if (rate->dsor == (s->audio_ctrl1 & 0x3f) && /* DACFS */
304 rate->fsref == ((s->audio_ctrl3 >> 13) & 1))/* REFFS */
307 printf("%s: unknown sampling rate configured\n", __FUNCTION__);
311 /* Force our own sampling rate even in slave DAC mode */
314 fmt.freq = rate->rate;
315 fmt.fmt = AUD_FMT_S16;
317 s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0],
318 "tsc2102.sink", s, (void *) tsc210x_audio_out_cb, &fmt);
320 AUD_set_active_out(s->dac_voice[0], 1);
323 static uint16_t tsc2102_data_register_read(struct tsc210x_state_s *s, int reg)
328 return TSC_CUT_RESOLUTION(X_TRANSFORM(s->x), s->precision) +
334 return TSC_CUT_RESOLUTION(Y_TRANSFORM(s->y), s->precision) ^
339 return TSC_CUT_RESOLUTION(Z1_TRANSFORM(s), s->precision) -
344 return TSC_CUT_RESOLUTION(Z2_TRANSFORM(s), s->precision) |
347 case 0x04: /* KPData */
350 case 0x05: /* BAT1 */
352 return TSC_CUT_RESOLUTION(BAT1_VAL, s->precision);
354 case 0x06: /* BAT2 */
356 return TSC_CUT_RESOLUTION(BAT2_VAL, s->precision);
358 case 0x07: /* AUX1 */
360 return TSC_CUT_RESOLUTION(AUX1_VAL, s->precision);
362 case 0x08: /* AUX2 */
366 case 0x09: /* TEMP1 */
368 return TSC_CUT_RESOLUTION(TEMP1_VAL, s->precision);
370 case 0x0a: /* TEMP2 */
372 return TSC_CUT_RESOLUTION(TEMP2_VAL, s->precision);
380 fprintf(stderr, "tsc2102_data_register_read: "
381 "no such register: 0x%02x\n", reg);
387 static uint16_t tsc2102_control_register_read(
388 struct tsc210x_state_s *s, int reg)
391 case 0x00: /* TSC ADC */
392 return (s->pressure << 15) | ((!s->busy) << 14) |
393 (s->nextfunction << 10) | (s->nextprecision << 8) | s->filter;
395 case 0x01: /* Status */
396 return (s->pin_func << 14) | ((!s->enabled) << 13) |
397 (s->host_mode << 12) | ((!!s->dav) << 11) | s->dav;
399 case 0x03: /* Reference */
402 case 0x04: /* Reset */
405 case 0x05: /* Configuration */
410 fprintf(stderr, "tsc2102_control_register_read: "
411 "no such register: 0x%02x\n", reg);
417 static uint16_t tsc2102_audio_register_read(struct tsc210x_state_s *s, int reg)
423 case 0x00: /* Audio Control 1 */
424 return s->audio_ctrl1;
429 case 0x02: /* DAC Volume Control */
435 case 0x04: /* Audio Control 2 */
438 if (s->softstep && !(s->dac_power & (1 << 10))) {
439 l_ch = (qemu_get_clock(vm_clock) >
440 s->volume_change + TSC_SOFTSTEP_DELAY);
441 r_ch = (qemu_get_clock(vm_clock) >
442 s->volume_change + TSC_SOFTSTEP_DELAY);
445 return s->audio_ctrl2 | (l_ch << 3) | (r_ch << 2);
447 case 0x05: /* Stereo DAC Power Control */
448 return 0x2aa0 | s->dac_power |
449 (((s->dac_power & (1 << 10)) &&
450 (qemu_get_clock(vm_clock) >
451 s->powerdown + TSC_POWEROFF_DELAY)) << 6);
453 case 0x06: /* Audio Control 3 */
454 val = s->audio_ctrl3 | 0x0001;
455 s->audio_ctrl3 &= 0xff3f;
458 case 0x07: /* LCH_BASS_BOOST_N0 */
459 case 0x08: /* LCH_BASS_BOOST_N1 */
460 case 0x09: /* LCH_BASS_BOOST_N2 */
461 case 0x0a: /* LCH_BASS_BOOST_N3 */
462 case 0x0b: /* LCH_BASS_BOOST_N4 */
463 case 0x0c: /* LCH_BASS_BOOST_N5 */
464 case 0x0d: /* LCH_BASS_BOOST_D1 */
465 case 0x0e: /* LCH_BASS_BOOST_D2 */
466 case 0x0f: /* LCH_BASS_BOOST_D4 */
467 case 0x10: /* LCH_BASS_BOOST_D5 */
468 case 0x11: /* RCH_BASS_BOOST_N0 */
469 case 0x12: /* RCH_BASS_BOOST_N1 */
470 case 0x13: /* RCH_BASS_BOOST_N2 */
471 case 0x14: /* RCH_BASS_BOOST_N3 */
472 case 0x15: /* RCH_BASS_BOOST_N4 */
473 case 0x16: /* RCH_BASS_BOOST_N5 */
474 case 0x17: /* RCH_BASS_BOOST_D1 */
475 case 0x18: /* RCH_BASS_BOOST_D2 */
476 case 0x19: /* RCH_BASS_BOOST_D4 */
477 case 0x1a: /* RCH_BASS_BOOST_D5 */
478 return s->filter_data[reg - 0x07];
480 case 0x1b: /* PLL Programmability 1 */
483 case 0x1c: /* PLL Programmability 2 */
486 case 0x1d: /* Audio Control 4 */
487 return (!s->softstep) << 14;
491 fprintf(stderr, "tsc2102_audio_register_read: "
492 "no such register: 0x%02x\n", reg);
498 static void tsc2102_data_register_write(
499 struct tsc210x_state_s *s, int reg, uint16_t value)
506 case 0x05: /* BAT1 */
507 case 0x06: /* BAT2 */
508 case 0x07: /* AUX1 */
509 case 0x08: /* AUX2 */
510 case 0x09: /* TEMP1 */
511 case 0x0a: /* TEMP2 */
516 fprintf(stderr, "tsc2102_data_register_write: "
517 "no such register: 0x%02x\n", reg);
522 static void tsc2102_control_register_write(
523 struct tsc210x_state_s *s, int reg, uint16_t value)
526 case 0x00: /* TSC ADC */
527 s->host_mode = value >> 15;
528 s->enabled = !(value & 0x4000);
529 if (s->busy && !s->enabled)
530 qemu_del_timer(s->timer);
531 s->busy &= s->enabled;
532 s->nextfunction = (value >> 10) & 0xf;
533 s->nextprecision = (value >> 8) & 3;
534 s->filter = value & 0xff;
537 case 0x01: /* Status */
538 s->pin_func = value >> 14;
541 case 0x03: /* Reference */
542 s->ref = value & 0x1f;
545 case 0x04: /* Reset */
546 if (value == 0xbb00) {
548 qemu_del_timer(s->timer);
552 fprintf(stderr, "tsc2102_control_register_write: "
553 "wrong value written into RESET\n");
558 case 0x05: /* Configuration */
559 s->timing = value & 0x3f;
562 fprintf(stderr, "tsc2102_control_register_write: "
563 "wrong value written into CONFIG\n");
569 fprintf(stderr, "tsc2102_control_register_write: "
570 "no such register: 0x%02x\n", reg);
575 static void tsc2102_audio_register_write(
576 struct tsc210x_state_s *s, int reg, uint16_t value)
579 case 0x00: /* Audio Control 1 */
580 s->audio_ctrl1 = value & 0x0f3f;
582 if ((value & ~0x0f3f) || ((value & 7) != ((value >> 3) & 7)))
583 fprintf(stderr, "tsc2102_audio_register_write: "
584 "wrong value written into Audio 1\n");
587 tsc2102_audio_set_format(s);
593 fprintf(stderr, "tsc2102_audio_register_write: "
594 "wrong value written into reg 0x01\n");
598 case 0x02: /* DAC Volume Control */
600 s->volume_change = qemu_get_clock(vm_clock);
606 fprintf(stderr, "tsc2102_audio_register_write: "
607 "wrong value written into reg 0x03\n");
611 case 0x04: /* Audio Control 2 */
612 s->audio_ctrl2 = value & 0xf7f2;
615 fprintf(stderr, "tsc2102_audio_register_write: "
616 "wrong value written into Audio 2\n");
620 case 0x05: /* Stereo DAC Power Control */
621 if ((value & ~s->dac_power) & (1 << 10))
622 s->powerdown = qemu_get_clock(vm_clock);
624 s->dac_power = value & 0x9543;
626 if ((value & ~0x9543) != 0x2aa0)
627 fprintf(stderr, "tsc2102_audio_register_write: "
628 "wrong value written into Power\n");
631 tsc2102_audio_set_format(s);
634 case 0x06: /* Audio Control 3 */
635 s->audio_ctrl3 &= 0x00c0;
636 s->audio_ctrl3 |= value & 0xf800;
639 fprintf(stderr, "tsc2102_audio_register_write: "
640 "wrong value written into Audio 3\n");
643 tsc2102_audio_set_format(s);
646 case 0x07: /* LCH_BASS_BOOST_N0 */
647 case 0x08: /* LCH_BASS_BOOST_N1 */
648 case 0x09: /* LCH_BASS_BOOST_N2 */
649 case 0x0a: /* LCH_BASS_BOOST_N3 */
650 case 0x0b: /* LCH_BASS_BOOST_N4 */
651 case 0x0c: /* LCH_BASS_BOOST_N5 */
652 case 0x0d: /* LCH_BASS_BOOST_D1 */
653 case 0x0e: /* LCH_BASS_BOOST_D2 */
654 case 0x0f: /* LCH_BASS_BOOST_D4 */
655 case 0x10: /* LCH_BASS_BOOST_D5 */
656 case 0x11: /* RCH_BASS_BOOST_N0 */
657 case 0x12: /* RCH_BASS_BOOST_N1 */
658 case 0x13: /* RCH_BASS_BOOST_N2 */
659 case 0x14: /* RCH_BASS_BOOST_N3 */
660 case 0x15: /* RCH_BASS_BOOST_N4 */
661 case 0x16: /* RCH_BASS_BOOST_N5 */
662 case 0x17: /* RCH_BASS_BOOST_D1 */
663 case 0x18: /* RCH_BASS_BOOST_D2 */
664 case 0x19: /* RCH_BASS_BOOST_D4 */
665 case 0x1a: /* RCH_BASS_BOOST_D5 */
666 s->filter_data[reg - 0x07] = value;
669 case 0x1b: /* PLL Programmability 1 */
670 s->pll[0] = value & 0xfffc;
673 fprintf(stderr, "tsc2102_audio_register_write: "
674 "wrong value written into PLL 1\n");
678 case 0x1c: /* PLL Programmability 2 */
679 s->pll[1] = value & 0xfffc;
682 fprintf(stderr, "tsc2102_audio_register_write: "
683 "wrong value written into PLL 2\n");
687 case 0x1d: /* Audio Control 4 */
688 s->softstep = !(value & 0x4000);
691 fprintf(stderr, "tsc2102_audio_register_write: "
692 "wrong value written into Audio 4\n");
698 fprintf(stderr, "tsc2102_audio_register_write: "
699 "no such register: 0x%02x\n", reg);
704 /* This handles most of the chip logic. */
705 static void tsc210x_pin_update(struct tsc210x_state_s *s)
710 switch (s->pin_func) {
712 pin_state = s->pressure;
715 pin_state = !!s->dav;
719 pin_state = s->pressure && !s->dav;
725 if (pin_state != s->irq) {
727 qemu_set_irq(s->pint, !s->irq);
730 switch (s->nextfunction) {
731 case TSC_MODE_XY_SCAN:
732 case TSC_MODE_XYZ_SCAN:
752 case TSC_MODE_AUX_SCAN:
753 case TSC_MODE_PORT_SCAN:
756 case TSC_MODE_NO_SCAN:
757 case TSC_MODE_XX_DRV:
758 case TSC_MODE_YY_DRV:
759 case TSC_MODE_YX_DRV:
764 if (!s->enabled || s->busy)
768 s->precision = s->nextprecision;
769 s->function = s->nextfunction;
770 expires = qemu_get_clock(vm_clock) + (ticks_per_sec >> 10);
771 qemu_mod_timer(s->timer, expires);
774 static uint16_t tsc210x_read(struct tsc210x_state_s *s)
776 uint16_t ret = 0x0000;
779 fprintf(stderr, "tsc210x_read: SPI underrun!\n");
782 case TSC_DATA_REGISTERS_PAGE:
783 ret = tsc2102_data_register_read(s, s->offset);
785 case TSC_CONTROL_REGISTERS_PAGE:
786 ret = tsc2102_control_register_read(s, s->offset);
788 case TSC_AUDIO_REGISTERS_PAGE:
789 ret = tsc2102_audio_register_read(s, s->offset);
792 cpu_abort(cpu_single_env, "tsc210x_read: wrong memory page\n");
795 tsc210x_pin_update(s);
797 /* Allow sequential reads. */
803 static void tsc210x_write(struct tsc210x_state_s *s, uint16_t value)
806 * This is a two-state state machine for reading
807 * command and data every second time.
810 s->command = value >> 15;
811 s->page = (value >> 11) & 0x0f;
812 s->offset = (value >> 5) & 0x3f;
816 fprintf(stderr, "tsc210x_write: SPI overrun!\n");
819 case TSC_DATA_REGISTERS_PAGE:
820 tsc2102_data_register_write(s, s->offset, value);
822 case TSC_CONTROL_REGISTERS_PAGE:
823 tsc2102_control_register_write(s, s->offset, value);
825 case TSC_AUDIO_REGISTERS_PAGE:
826 tsc2102_audio_register_write(s, s->offset, value);
829 cpu_abort(cpu_single_env,
830 "tsc210x_write: wrong memory page\n");
833 tsc210x_pin_update(s);
838 static void tsc210x_timer_tick(void *opaque)
840 struct tsc210x_state_s *s = opaque;
842 /* Timer ticked -- a set of conversions has been finished. */
848 s->dav |= mode_regs[s->function];
849 tsc210x_pin_update(s);
852 static void tsc210x_touchscreen_event(void *opaque,
853 int x, int y, int z, int buttons_state)
855 struct tsc210x_state_s *s = opaque;
862 s->pressure = !!buttons_state;
865 * Note: We would get better responsiveness in the guest by
866 * signaling TS events immediately, but for now we simulate
867 * the first conversion delay for sake of correctness.
869 if (p != s->pressure)
870 tsc210x_pin_update(s);
873 static void tsc210x_i2s_swallow(struct tsc210x_state_s *s)
876 tsc210x_out_flush(s, s->codec.out.len);
878 s->codec.out.len = 0;
881 static void tsc210x_i2s_set_rate(struct tsc210x_state_s *s, int in, int out)
883 s->i2s_tx_rate = out;
887 static void tsc210x_save(QEMUFile *f, void *opaque)
889 struct tsc210x_state_s *s = (struct tsc210x_state_s *) opaque;
890 int64_t now = qemu_get_clock(vm_clock);
893 qemu_put_be16(f, s->x);
894 qemu_put_be16(f, s->y);
895 qemu_put_byte(f, s->pressure);
897 qemu_put_byte(f, s->state);
898 qemu_put_byte(f, s->page);
899 qemu_put_byte(f, s->offset);
900 qemu_put_byte(f, s->command);
902 qemu_put_byte(f, s->irq);
903 qemu_put_be16s(f, &s->dav);
905 qemu_put_timer(f, s->timer);
906 qemu_put_byte(f, s->enabled);
907 qemu_put_byte(f, s->host_mode);
908 qemu_put_byte(f, s->function);
909 qemu_put_byte(f, s->nextfunction);
910 qemu_put_byte(f, s->precision);
911 qemu_put_byte(f, s->nextprecision);
912 qemu_put_byte(f, s->filter);
913 qemu_put_byte(f, s->pin_func);
914 qemu_put_byte(f, s->ref);
915 qemu_put_byte(f, s->timing);
916 qemu_put_be32(f, s->noise);
918 qemu_put_be16s(f, &s->audio_ctrl1);
919 qemu_put_be16s(f, &s->audio_ctrl2);
920 qemu_put_be16s(f, &s->audio_ctrl3);
921 qemu_put_be16s(f, &s->pll[0]);
922 qemu_put_be16s(f, &s->pll[1]);
923 qemu_put_be16s(f, &s->volume);
924 qemu_put_be64(f, (uint64_t) (s->volume_change - now));
925 qemu_put_be64(f, (uint64_t) (s->powerdown - now));
926 qemu_put_byte(f, s->softstep);
927 qemu_put_be16s(f, &s->dac_power);
929 for (i = 0; i < 0x14; i ++)
930 qemu_put_be16s(f, &s->filter_data[i]);
933 static int tsc210x_load(QEMUFile *f, void *opaque, int version_id)
935 struct tsc210x_state_s *s = (struct tsc210x_state_s *) opaque;
936 int64_t now = qemu_get_clock(vm_clock);
939 s->x = qemu_get_be16(f);
940 s->y = qemu_get_be16(f);
941 s->pressure = qemu_get_byte(f);
943 s->state = qemu_get_byte(f);
944 s->page = qemu_get_byte(f);
945 s->offset = qemu_get_byte(f);
946 s->command = qemu_get_byte(f);
948 s->irq = qemu_get_byte(f);
949 qemu_get_be16s(f, &s->dav);
951 qemu_get_timer(f, s->timer);
952 s->enabled = qemu_get_byte(f);
953 s->host_mode = qemu_get_byte(f);
954 s->function = qemu_get_byte(f);
955 s->nextfunction = qemu_get_byte(f);
956 s->precision = qemu_get_byte(f);
957 s->nextprecision = qemu_get_byte(f);
958 s->filter = qemu_get_byte(f);
959 s->pin_func = qemu_get_byte(f);
960 s->ref = qemu_get_byte(f);
961 s->timing = qemu_get_byte(f);
962 s->noise = qemu_get_be32(f);
964 qemu_get_be16s(f, &s->audio_ctrl1);
965 qemu_get_be16s(f, &s->audio_ctrl2);
966 qemu_get_be16s(f, &s->audio_ctrl3);
967 qemu_get_be16s(f, &s->pll[0]);
968 qemu_get_be16s(f, &s->pll[1]);
969 qemu_get_be16s(f, &s->volume);
970 s->volume_change = (int64_t) qemu_get_be64(f) + now;
971 s->powerdown = (int64_t) qemu_get_be64(f) + now;
972 s->softstep = qemu_get_byte(f);
973 qemu_get_be16s(f, &s->dac_power);
975 for (i = 0; i < 0x14; i ++)
976 qemu_get_be16s(f, &s->filter_data[i]);
978 s->busy = qemu_timer_pending(s->timer);
979 qemu_set_irq(s->pint, !s->irq);
984 static int tsc2102_iid = 0;
986 struct uwire_slave_s *tsc2102_init(qemu_irq pint, AudioState *audio)
988 struct tsc210x_state_s *s;
990 s = (struct tsc210x_state_s *)
991 qemu_mallocz(sizeof(struct tsc210x_state_s));
992 memset(s, 0, sizeof(struct tsc210x_state_s));
996 s->precision = s->nextprecision = 0;
997 s->timer = qemu_new_timer(vm_clock, tsc210x_timer_tick, s);
1003 s->chip.send = (void *) tsc210x_write;
1004 s->chip.receive = (void *) tsc210x_read;
1006 s->codec.opaque = s;
1007 s->codec.tx_swallow = (void *) tsc210x_i2s_swallow;
1008 s->codec.set_rate = (void *) tsc210x_i2s_set_rate;
1009 s->codec.in.fifo = s->in_fifo;
1010 s->codec.out.fifo = s->out_fifo;
1014 qemu_add_mouse_event_handler(tsc210x_touchscreen_event, s, 1,
1015 "QEMU TSC2102-driven Touchscreen");
1018 AUD_register_card(s->audio, s->name, &s->card);
1020 qemu_register_reset((void *) tsc210x_reset, s);
1021 register_savevm(s->name, tsc2102_iid ++, 0,
1022 tsc210x_save, tsc210x_load, s);
1027 struct i2s_codec_s *tsc210x_codec(struct uwire_slave_s *chip)
1029 struct tsc210x_state_s *s = (struct tsc210x_state_s *) chip->opaque;