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,
23 #include "audio/audio.h"
24 #include "qemu-timer.h"
28 #define TSC_DATA_REGISTERS_PAGE 0x0
29 #define TSC_CONTROL_REGISTERS_PAGE 0x1
30 #define TSC_AUDIO_REGISTERS_PAGE 0x2
34 #define TSC_CUT_RESOLUTION(value, p) ((value) >> (16 - resolution[p]))
36 struct tsc210x_state_s {
40 struct uwire_slave_s chip;
41 struct i2s_codec_s codec;
42 uint8_t in_fifo[16384];
43 uint8_t out_fifo[16384];
48 int state, page, offset, irq;
49 uint16_t command, dav;
69 int64_t volume_change;
73 uint16_t filter_data[0x14];
76 SWVoiceIn *adc_voice[1];
77 SWVoiceOut *dac_voice[1];
83 static const int resolution[4] = { 12, 8, 10, 12 };
85 #define TSC_MODE_NO_SCAN 0x0
86 #define TSC_MODE_XY_SCAN 0x1
87 #define TSC_MODE_XYZ_SCAN 0x2
88 #define TSC_MODE_X 0x3
89 #define TSC_MODE_Y 0x4
90 #define TSC_MODE_Z 0x5
91 #define TSC_MODE_BAT1 0x6
92 #define TSC_MODE_BAT2 0x7
93 #define TSC_MODE_AUX 0x8
94 #define TSC_MODE_AUX_SCAN 0x9
95 #define TSC_MODE_TEMP1 0xa
96 #define TSC_MODE_PORT_SCAN 0xb
97 #define TSC_MODE_TEMP2 0xc
98 #define TSC_MODE_XX_DRV 0xd
99 #define TSC_MODE_YY_DRV 0xe
100 #define TSC_MODE_YX_DRV 0xf
102 static const uint16_t mode_regs[16] = {
103 0x0000, /* No scan */
104 0x0600, /* X, Y scan */
105 0x0780, /* X, Y, Z scan */
112 0x0010, /* AUX scan */
114 0x0070, /* Port scan */
116 0x0000, /* X+, X- drivers */
117 0x0000, /* Y+, Y- drivers */
118 0x0000, /* Y+, X- drivers */
122 * Convert screen coordinates to arbitrary values that the
123 * touchscreen in my Palm Tungsten E device returns.
124 * This shouldn't really matter (because the guest system
125 * should calibrate the touchscreen anyway), but let's
126 * imitate some real hardware.
128 #define X_TRANSFORM(value) \
129 ((3850 - ((int) (value) * (3850 - 250) / 32768)) << 4)
130 #define Y_TRANSFORM(value) \
131 ((150 + ((int) (value) * (3037 - 150) / 32768)) << 4)
132 #define Z1_TRANSFORM(s) \
133 ((400 - (s)->x + ((s)->pressure << 9)) << 4)
134 #define Z2_TRANSFORM(s) \
135 ((4000 + (s)->y - ((s)->pressure << 10)) << 4)
136 #define BAT1_VAL 0x8660
137 #define BAT2_VAL 0x0000
138 #define AUX1_VAL 0x35c0
139 #define AUX2_VAL 0xffff
140 #define TEMP1_VAL 0x8c70
141 #define TEMP2_VAL 0xa5b0
143 #define TSC_POWEROFF_DELAY 50
144 #define TSC_SOFTSTEP_DELAY 50
146 static void tsc210x_reset(struct tsc210x_state_s *s)
158 s->audio_ctrl1 = 0x0000;
159 s->audio_ctrl2 = 0x4410;
160 s->audio_ctrl3 = 0x0000;
164 s->dac_power = 0x8540;
166 s->volume_change = 0;
168 s->filter_data[0x00] = 0x6be3;
169 s->filter_data[0x01] = 0x9666;
170 s->filter_data[0x02] = 0x675d;
171 s->filter_data[0x03] = 0x6be3;
172 s->filter_data[0x04] = 0x9666;
173 s->filter_data[0x05] = 0x675d;
174 s->filter_data[0x06] = 0x7d83;
175 s->filter_data[0x07] = 0x84ee;
176 s->filter_data[0x08] = 0x7d83;
177 s->filter_data[0x09] = 0x84ee;
178 s->filter_data[0x0a] = 0x6be3;
179 s->filter_data[0x0b] = 0x9666;
180 s->filter_data[0x0c] = 0x675d;
181 s->filter_data[0x0d] = 0x6be3;
182 s->filter_data[0x0e] = 0x9666;
183 s->filter_data[0x0f] = 0x675d;
184 s->filter_data[0x10] = 0x7d83;
185 s->filter_data[0x11] = 0x84ee;
186 s->filter_data[0x12] = 0x7d83;
187 s->filter_data[0x13] = 0x84ee;
192 qemu_set_irq(s->pint, !s->irq);
195 struct tsc210x_rate_info_s {
201 /* { rate, dsor, fsref } */
202 static const struct tsc210x_rate_info_s tsc2101_rates[] = {
231 /* { rate, dsor, fsref } */
232 static const struct tsc210x_rate_info_s tsc2102_rates[] = {
261 static inline void tsc210x_out_flush(struct tsc210x_state_s *s, int len)
263 uint8_t *data = s->codec.out.fifo + s->codec.out.start;
264 uint8_t *end = data + len;
267 data += AUD_write(s->dac_voice[0], data, end - data) ?: (end - data);
269 s->codec.out.len -= len;
270 if (s->codec.out.len)
271 memmove(s->codec.out.fifo, end, s->codec.out.len);
272 s->codec.out.start = 0;
275 static void tsc210x_audio_out_cb(struct tsc210x_state_s *s, int free_b)
277 if (s->codec.out.len >= free_b) {
278 tsc210x_out_flush(s, free_b);
282 s->codec.out.size = MIN(free_b, 16384);
283 qemu_irq_raise(s->codec.tx_start);
286 static void tsc2102_audio_set_format(struct tsc210x_state_s *s)
289 const struct tsc210x_rate_info_s *rate;
292 if (s->dac_voice[0]) {
293 tsc210x_out_flush(s, s->codec.out.len);
294 s->codec.out.size = 0;
295 AUD_set_active_out(s->dac_voice[0], 0);
296 AUD_close_out(&s->card, s->dac_voice[0]);
301 (~s->dac_power & (1 << 15)) && /* PWDNC */
302 (~s->dac_power & (1 << 10)); /* DAPWDN */
306 for (rate = tsc2102_rates; rate->rate; rate ++)
307 if (rate->dsor == (s->audio_ctrl1 & 0x3f) && /* DACFS */
308 rate->fsref == ((s->audio_ctrl3 >> 13) & 1))/* REFFS */
311 printf("%s: unknown sampling rate configured\n", __FUNCTION__);
315 /* Force our own sampling rate even in slave DAC mode */
318 fmt.freq = rate->rate;
319 fmt.fmt = AUD_FMT_S16;
321 s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0],
322 "tsc2102.sink", s, (void *) tsc210x_audio_out_cb, &fmt);
324 AUD_set_active_out(s->dac_voice[0], 1);
327 static uint16_t tsc2102_data_register_read(struct tsc210x_state_s *s, int reg)
332 return TSC_CUT_RESOLUTION(X_TRANSFORM(s->x), s->precision) +
338 return TSC_CUT_RESOLUTION(Y_TRANSFORM(s->y), s->precision) ^
343 return TSC_CUT_RESOLUTION(Z1_TRANSFORM(s), s->precision) -
348 return TSC_CUT_RESOLUTION(Z2_TRANSFORM(s), s->precision) |
351 case 0x04: /* KPData */
354 case 0x05: /* BAT1 */
356 return TSC_CUT_RESOLUTION(BAT1_VAL, s->precision);
358 case 0x06: /* BAT2 */
360 return TSC_CUT_RESOLUTION(BAT2_VAL, s->precision);
362 case 0x07: /* AUX1 */
364 return TSC_CUT_RESOLUTION(AUX1_VAL, s->precision);
366 case 0x08: /* AUX2 */
370 case 0x09: /* TEMP1 */
372 return TSC_CUT_RESOLUTION(TEMP1_VAL, s->precision);
374 case 0x0a: /* TEMP2 */
376 return TSC_CUT_RESOLUTION(TEMP2_VAL, s->precision);
384 fprintf(stderr, "tsc2102_data_register_read: "
385 "no such register: 0x%02x\n", reg);
391 static uint16_t tsc2102_control_register_read(
392 struct tsc210x_state_s *s, int reg)
395 case 0x00: /* TSC ADC */
396 return (s->pressure << 15) | ((!s->busy) << 14) |
397 (s->nextfunction << 10) | (s->nextprecision << 8) | s->filter;
399 case 0x01: /* Status */
400 return (s->pin_func << 14) | ((!s->enabled) << 13) |
401 (s->host_mode << 12) | ((!!s->dav) << 11) | s->dav;
403 case 0x03: /* Reference */
406 case 0x04: /* Reset */
409 case 0x05: /* Configuration */
414 fprintf(stderr, "tsc2102_control_register_read: "
415 "no such register: 0x%02x\n", reg);
421 static uint16_t tsc2102_audio_register_read(struct tsc210x_state_s *s, int reg)
427 case 0x00: /* Audio Control 1 */
428 return s->audio_ctrl1;
433 case 0x02: /* DAC Volume Control */
439 case 0x04: /* Audio Control 2 */
442 if (s->softstep && !(s->dac_power & (1 << 10))) {
443 l_ch = (qemu_get_clock(vm_clock) >
444 s->volume_change + TSC_SOFTSTEP_DELAY);
445 r_ch = (qemu_get_clock(vm_clock) >
446 s->volume_change + TSC_SOFTSTEP_DELAY);
449 return s->audio_ctrl2 | (l_ch << 3) | (r_ch << 2);
451 case 0x05: /* Stereo DAC Power Control */
452 return 0x2aa0 | s->dac_power |
453 (((s->dac_power & (1 << 10)) &&
454 (qemu_get_clock(vm_clock) >
455 s->powerdown + TSC_POWEROFF_DELAY)) << 6);
457 case 0x06: /* Audio Control 3 */
458 val = s->audio_ctrl3 | 0x0001;
459 s->audio_ctrl3 &= 0xff3f;
462 case 0x07: /* LCH_BASS_BOOST_N0 */
463 case 0x08: /* LCH_BASS_BOOST_N1 */
464 case 0x09: /* LCH_BASS_BOOST_N2 */
465 case 0x0a: /* LCH_BASS_BOOST_N3 */
466 case 0x0b: /* LCH_BASS_BOOST_N4 */
467 case 0x0c: /* LCH_BASS_BOOST_N5 */
468 case 0x0d: /* LCH_BASS_BOOST_D1 */
469 case 0x0e: /* LCH_BASS_BOOST_D2 */
470 case 0x0f: /* LCH_BASS_BOOST_D4 */
471 case 0x10: /* LCH_BASS_BOOST_D5 */
472 case 0x11: /* RCH_BASS_BOOST_N0 */
473 case 0x12: /* RCH_BASS_BOOST_N1 */
474 case 0x13: /* RCH_BASS_BOOST_N2 */
475 case 0x14: /* RCH_BASS_BOOST_N3 */
476 case 0x15: /* RCH_BASS_BOOST_N4 */
477 case 0x16: /* RCH_BASS_BOOST_N5 */
478 case 0x17: /* RCH_BASS_BOOST_D1 */
479 case 0x18: /* RCH_BASS_BOOST_D2 */
480 case 0x19: /* RCH_BASS_BOOST_D4 */
481 case 0x1a: /* RCH_BASS_BOOST_D5 */
482 return s->filter_data[reg - 0x07];
484 case 0x1b: /* PLL Programmability 1 */
487 case 0x1c: /* PLL Programmability 2 */
490 case 0x1d: /* Audio Control 4 */
491 return (!s->softstep) << 14;
495 fprintf(stderr, "tsc2102_audio_register_read: "
496 "no such register: 0x%02x\n", reg);
502 static void tsc2102_data_register_write(
503 struct tsc210x_state_s *s, int reg, uint16_t value)
510 case 0x05: /* BAT1 */
511 case 0x06: /* BAT2 */
512 case 0x07: /* AUX1 */
513 case 0x08: /* AUX2 */
514 case 0x09: /* TEMP1 */
515 case 0x0a: /* TEMP2 */
520 fprintf(stderr, "tsc2102_data_register_write: "
521 "no such register: 0x%02x\n", reg);
526 static void tsc2102_control_register_write(
527 struct tsc210x_state_s *s, int reg, uint16_t value)
530 case 0x00: /* TSC ADC */
531 s->host_mode = value >> 15;
532 s->enabled = !(value & 0x4000);
533 if (s->busy && !s->enabled)
534 qemu_del_timer(s->timer);
535 s->busy &= s->enabled;
536 s->nextfunction = (value >> 10) & 0xf;
537 s->nextprecision = (value >> 8) & 3;
538 s->filter = value & 0xff;
541 case 0x01: /* Status */
542 s->pin_func = value >> 14;
545 case 0x03: /* Reference */
546 s->ref = value & 0x1f;
549 case 0x04: /* Reset */
550 if (value == 0xbb00) {
552 qemu_del_timer(s->timer);
556 fprintf(stderr, "tsc2102_control_register_write: "
557 "wrong value written into RESET\n");
562 case 0x05: /* Configuration */
563 s->timing = value & 0x3f;
566 fprintf(stderr, "tsc2102_control_register_write: "
567 "wrong value written into CONFIG\n");
573 fprintf(stderr, "tsc2102_control_register_write: "
574 "no such register: 0x%02x\n", reg);
579 static void tsc2102_audio_register_write(
580 struct tsc210x_state_s *s, int reg, uint16_t value)
583 case 0x00: /* Audio Control 1 */
584 s->audio_ctrl1 = value & 0x0f3f;
586 if ((value & ~0x0f3f) || ((value & 7) != ((value >> 3) & 7)))
587 fprintf(stderr, "tsc2102_audio_register_write: "
588 "wrong value written into Audio 1\n");
591 tsc2102_audio_set_format(s);
597 fprintf(stderr, "tsc2102_audio_register_write: "
598 "wrong value written into reg 0x01\n");
602 case 0x02: /* DAC Volume Control */
604 s->volume_change = qemu_get_clock(vm_clock);
610 fprintf(stderr, "tsc2102_audio_register_write: "
611 "wrong value written into reg 0x03\n");
615 case 0x04: /* Audio Control 2 */
616 s->audio_ctrl2 = value & 0xf7f2;
619 fprintf(stderr, "tsc2102_audio_register_write: "
620 "wrong value written into Audio 2\n");
624 case 0x05: /* Stereo DAC Power Control */
625 if ((value & ~s->dac_power) & (1 << 10))
626 s->powerdown = qemu_get_clock(vm_clock);
628 s->dac_power = value & 0x9543;
630 if ((value & ~0x9543) != 0x2aa0)
631 fprintf(stderr, "tsc2102_audio_register_write: "
632 "wrong value written into Power\n");
635 tsc2102_audio_set_format(s);
638 case 0x06: /* Audio Control 3 */
639 s->audio_ctrl3 &= 0x00c0;
640 s->audio_ctrl3 |= value & 0xf800;
643 fprintf(stderr, "tsc2102_audio_register_write: "
644 "wrong value written into Audio 3\n");
647 tsc2102_audio_set_format(s);
650 case 0x07: /* LCH_BASS_BOOST_N0 */
651 case 0x08: /* LCH_BASS_BOOST_N1 */
652 case 0x09: /* LCH_BASS_BOOST_N2 */
653 case 0x0a: /* LCH_BASS_BOOST_N3 */
654 case 0x0b: /* LCH_BASS_BOOST_N4 */
655 case 0x0c: /* LCH_BASS_BOOST_N5 */
656 case 0x0d: /* LCH_BASS_BOOST_D1 */
657 case 0x0e: /* LCH_BASS_BOOST_D2 */
658 case 0x0f: /* LCH_BASS_BOOST_D4 */
659 case 0x10: /* LCH_BASS_BOOST_D5 */
660 case 0x11: /* RCH_BASS_BOOST_N0 */
661 case 0x12: /* RCH_BASS_BOOST_N1 */
662 case 0x13: /* RCH_BASS_BOOST_N2 */
663 case 0x14: /* RCH_BASS_BOOST_N3 */
664 case 0x15: /* RCH_BASS_BOOST_N4 */
665 case 0x16: /* RCH_BASS_BOOST_N5 */
666 case 0x17: /* RCH_BASS_BOOST_D1 */
667 case 0x18: /* RCH_BASS_BOOST_D2 */
668 case 0x19: /* RCH_BASS_BOOST_D4 */
669 case 0x1a: /* RCH_BASS_BOOST_D5 */
670 s->filter_data[reg - 0x07] = value;
673 case 0x1b: /* PLL Programmability 1 */
674 s->pll[0] = value & 0xfffc;
677 fprintf(stderr, "tsc2102_audio_register_write: "
678 "wrong value written into PLL 1\n");
682 case 0x1c: /* PLL Programmability 2 */
683 s->pll[1] = value & 0xfffc;
686 fprintf(stderr, "tsc2102_audio_register_write: "
687 "wrong value written into PLL 2\n");
691 case 0x1d: /* Audio Control 4 */
692 s->softstep = !(value & 0x4000);
695 fprintf(stderr, "tsc2102_audio_register_write: "
696 "wrong value written into Audio 4\n");
702 fprintf(stderr, "tsc2102_audio_register_write: "
703 "no such register: 0x%02x\n", reg);
708 /* This handles most of the chip logic. */
709 static void tsc210x_pin_update(struct tsc210x_state_s *s)
714 switch (s->pin_func) {
716 pin_state = s->pressure;
719 pin_state = !!s->dav;
723 pin_state = s->pressure && !s->dav;
729 if (pin_state != s->irq) {
731 qemu_set_irq(s->pint, !s->irq);
734 switch (s->nextfunction) {
735 case TSC_MODE_XY_SCAN:
736 case TSC_MODE_XYZ_SCAN:
756 case TSC_MODE_AUX_SCAN:
757 case TSC_MODE_PORT_SCAN:
760 case TSC_MODE_NO_SCAN:
761 case TSC_MODE_XX_DRV:
762 case TSC_MODE_YY_DRV:
763 case TSC_MODE_YX_DRV:
768 if (!s->enabled || s->busy)
772 s->precision = s->nextprecision;
773 s->function = s->nextfunction;
774 expires = qemu_get_clock(vm_clock) + (ticks_per_sec >> 10);
775 qemu_mod_timer(s->timer, expires);
778 static uint16_t tsc210x_read(struct tsc210x_state_s *s)
780 uint16_t ret = 0x0000;
783 fprintf(stderr, "tsc210x_read: SPI underrun!\n");
786 case TSC_DATA_REGISTERS_PAGE:
787 ret = tsc2102_data_register_read(s, s->offset);
789 case TSC_CONTROL_REGISTERS_PAGE:
790 ret = tsc2102_control_register_read(s, s->offset);
792 case TSC_AUDIO_REGISTERS_PAGE:
793 ret = tsc2102_audio_register_read(s, s->offset);
796 cpu_abort(cpu_single_env, "tsc210x_read: wrong memory page\n");
799 tsc210x_pin_update(s);
801 /* Allow sequential reads. */
807 static void tsc210x_write(struct tsc210x_state_s *s, uint16_t value)
810 * This is a two-state state machine for reading
811 * command and data every second time.
814 s->command = value >> 15;
815 s->page = (value >> 11) & 0x0f;
816 s->offset = (value >> 5) & 0x3f;
820 fprintf(stderr, "tsc210x_write: SPI overrun!\n");
823 case TSC_DATA_REGISTERS_PAGE:
824 tsc2102_data_register_write(s, s->offset, value);
826 case TSC_CONTROL_REGISTERS_PAGE:
827 tsc2102_control_register_write(s, s->offset, value);
829 case TSC_AUDIO_REGISTERS_PAGE:
830 tsc2102_audio_register_write(s, s->offset, value);
833 cpu_abort(cpu_single_env,
834 "tsc210x_write: wrong memory page\n");
837 tsc210x_pin_update(s);
842 static void tsc210x_timer_tick(void *opaque)
844 struct tsc210x_state_s *s = opaque;
846 /* Timer ticked -- a set of conversions has been finished. */
852 s->dav |= mode_regs[s->function];
853 tsc210x_pin_update(s);
856 static void tsc210x_touchscreen_event(void *opaque,
857 int x, int y, int z, int buttons_state)
859 struct tsc210x_state_s *s = opaque;
866 s->pressure = !!buttons_state;
869 * Note: We would get better responsiveness in the guest by
870 * signaling TS events immediately, but for now we simulate
871 * the first conversion delay for sake of correctness.
873 if (p != s->pressure)
874 tsc210x_pin_update(s);
877 static void tsc210x_i2s_swallow(struct tsc210x_state_s *s)
880 tsc210x_out_flush(s, s->codec.out.len);
882 s->codec.out.len = 0;
885 static void tsc210x_i2s_set_rate(struct tsc210x_state_s *s, int in, int out)
887 s->i2s_tx_rate = out;
891 static void tsc210x_save(QEMUFile *f, void *opaque)
893 struct tsc210x_state_s *s = (struct tsc210x_state_s *) opaque;
894 int64_t now = qemu_get_clock(vm_clock);
897 qemu_put_be16(f, s->x);
898 qemu_put_be16(f, s->y);
899 qemu_put_byte(f, s->pressure);
901 qemu_put_byte(f, s->state);
902 qemu_put_byte(f, s->page);
903 qemu_put_byte(f, s->offset);
904 qemu_put_byte(f, s->command);
906 qemu_put_byte(f, s->irq);
907 qemu_put_be16s(f, &s->dav);
909 qemu_put_timer(f, s->timer);
910 qemu_put_byte(f, s->enabled);
911 qemu_put_byte(f, s->host_mode);
912 qemu_put_byte(f, s->function);
913 qemu_put_byte(f, s->nextfunction);
914 qemu_put_byte(f, s->precision);
915 qemu_put_byte(f, s->nextprecision);
916 qemu_put_byte(f, s->filter);
917 qemu_put_byte(f, s->pin_func);
918 qemu_put_byte(f, s->ref);
919 qemu_put_byte(f, s->timing);
920 qemu_put_be32(f, s->noise);
922 qemu_put_be16s(f, &s->audio_ctrl1);
923 qemu_put_be16s(f, &s->audio_ctrl2);
924 qemu_put_be16s(f, &s->audio_ctrl3);
925 qemu_put_be16s(f, &s->pll[0]);
926 qemu_put_be16s(f, &s->pll[1]);
927 qemu_put_be16s(f, &s->volume);
928 qemu_put_be64(f, (uint64_t) (s->volume_change - now));
929 qemu_put_be64(f, (uint64_t) (s->powerdown - now));
930 qemu_put_byte(f, s->softstep);
931 qemu_put_be16s(f, &s->dac_power);
933 for (i = 0; i < 0x14; i ++)
934 qemu_put_be16s(f, &s->filter_data[i]);
937 static int tsc210x_load(QEMUFile *f, void *opaque, int version_id)
939 struct tsc210x_state_s *s = (struct tsc210x_state_s *) opaque;
940 int64_t now = qemu_get_clock(vm_clock);
943 s->x = qemu_get_be16(f);
944 s->y = qemu_get_be16(f);
945 s->pressure = qemu_get_byte(f);
947 s->state = qemu_get_byte(f);
948 s->page = qemu_get_byte(f);
949 s->offset = qemu_get_byte(f);
950 s->command = qemu_get_byte(f);
952 s->irq = qemu_get_byte(f);
953 qemu_get_be16s(f, &s->dav);
955 qemu_get_timer(f, s->timer);
956 s->enabled = qemu_get_byte(f);
957 s->host_mode = qemu_get_byte(f);
958 s->function = qemu_get_byte(f);
959 s->nextfunction = qemu_get_byte(f);
960 s->precision = qemu_get_byte(f);
961 s->nextprecision = qemu_get_byte(f);
962 s->filter = qemu_get_byte(f);
963 s->pin_func = qemu_get_byte(f);
964 s->ref = qemu_get_byte(f);
965 s->timing = qemu_get_byte(f);
966 s->noise = qemu_get_be32(f);
968 qemu_get_be16s(f, &s->audio_ctrl1);
969 qemu_get_be16s(f, &s->audio_ctrl2);
970 qemu_get_be16s(f, &s->audio_ctrl3);
971 qemu_get_be16s(f, &s->pll[0]);
972 qemu_get_be16s(f, &s->pll[1]);
973 qemu_get_be16s(f, &s->volume);
974 s->volume_change = (int64_t) qemu_get_be64(f) + now;
975 s->powerdown = (int64_t) qemu_get_be64(f) + now;
976 s->softstep = qemu_get_byte(f);
977 qemu_get_be16s(f, &s->dac_power);
979 for (i = 0; i < 0x14; i ++)
980 qemu_get_be16s(f, &s->filter_data[i]);
982 s->busy = qemu_timer_pending(s->timer);
983 qemu_set_irq(s->pint, !s->irq);
988 static int tsc2102_iid = 0;
990 struct uwire_slave_s *tsc2102_init(qemu_irq pint, AudioState *audio)
992 struct tsc210x_state_s *s;
994 s = (struct tsc210x_state_s *)
995 qemu_mallocz(sizeof(struct tsc210x_state_s));
996 memset(s, 0, sizeof(struct tsc210x_state_s));
1000 s->precision = s->nextprecision = 0;
1001 s->timer = qemu_new_timer(vm_clock, tsc210x_timer_tick, s);
1003 s->name = "tsc2102";
1007 s->chip.send = (void *) tsc210x_write;
1008 s->chip.receive = (void *) tsc210x_read;
1010 s->codec.opaque = s;
1011 s->codec.tx_swallow = (void *) tsc210x_i2s_swallow;
1012 s->codec.set_rate = (void *) tsc210x_i2s_set_rate;
1013 s->codec.in.fifo = s->in_fifo;
1014 s->codec.out.fifo = s->out_fifo;
1018 qemu_add_mouse_event_handler(tsc210x_touchscreen_event, s, 1,
1019 "QEMU TSC2102-driven Touchscreen");
1022 AUD_register_card(s->audio, s->name, &s->card);
1024 qemu_register_reset((void *) tsc210x_reset, s);
1025 register_savevm(s->name, tsc2102_iid ++, 0,
1026 tsc210x_save, tsc210x_load, s);
1031 struct i2s_codec_s *tsc210x_codec(struct uwire_slave_s *chip)
1033 struct tsc210x_state_s *s = (struct tsc210x_state_s *) chip->opaque;