2 * TI TSC2102 (touchscreen/sensors/audio controller) emulator.
3 * TI TSC2301 (touchscreen/sensors/keypad).
5 * Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org>
6 * Copyright (C) 2008 Nokia Corporation
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.
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.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include "audio/audio.h"
26 #include "qemu-timer.h"
28 #include "omap.h" /* For struct i2s_codec_s and struct uwire_slave_s */
31 #define TSC_DATA_REGISTERS_PAGE 0x0
32 #define TSC_CONTROL_REGISTERS_PAGE 0x1
33 #define TSC_AUDIO_REGISTERS_PAGE 0x2
37 #define TSC_CUT_RESOLUTION(value, p) ((value) >> (16 - resolution[p]))
39 struct tsc210x_state_s {
45 struct uwire_slave_s chip;
46 struct i2s_codec_s codec;
47 uint8_t in_fifo[16384];
48 uint8_t out_fifo[16384];
54 int state, page, offset, irq;
55 uint16_t command, dav;
75 int64_t volume_change;
79 uint16_t filter_data[0x14];
82 SWVoiceIn *adc_voice[1];
83 SWVoiceOut *dac_voice[1];
100 static const int resolution[4] = { 12, 8, 10, 12 };
102 #define TSC_MODE_NO_SCAN 0x0
103 #define TSC_MODE_XY_SCAN 0x1
104 #define TSC_MODE_XYZ_SCAN 0x2
105 #define TSC_MODE_X 0x3
106 #define TSC_MODE_Y 0x4
107 #define TSC_MODE_Z 0x5
108 #define TSC_MODE_BAT1 0x6
109 #define TSC_MODE_BAT2 0x7
110 #define TSC_MODE_AUX 0x8
111 #define TSC_MODE_AUX_SCAN 0x9
112 #define TSC_MODE_TEMP1 0xa
113 #define TSC_MODE_PORT_SCAN 0xb
114 #define TSC_MODE_TEMP2 0xc
115 #define TSC_MODE_XX_DRV 0xd
116 #define TSC_MODE_YY_DRV 0xe
117 #define TSC_MODE_YX_DRV 0xf
119 static const uint16_t mode_regs[16] = {
120 0x0000, /* No scan */
121 0x0600, /* X, Y scan */
122 0x0780, /* X, Y, Z scan */
129 0x0010, /* AUX scan */
131 0x0070, /* Port scan */
133 0x0000, /* X+, X- drivers */
134 0x0000, /* Y+, Y- drivers */
135 0x0000, /* Y+, X- drivers */
138 #define X_TRANSFORM(s) \
139 ((s->y * s->tr[0] - s->x * s->tr[1]) / s->tr[2] + s->tr[3])
140 #define Y_TRANSFORM(s) \
141 ((s->y * s->tr[4] - s->x * s->tr[5]) / s->tr[6] + s->tr[7])
142 #define Z1_TRANSFORM(s) \
143 ((400 - ((s)->x >> 7) + ((s)->pressure << 10)) << 4)
144 #define Z2_TRANSFORM(s) \
145 ((4000 + ((s)->y >> 7) - ((s)->pressure << 10)) << 4)
147 #define BAT1_VAL 0x8660
148 #define BAT2_VAL 0x0000
149 #define AUX1_VAL 0x35c0
150 #define AUX2_VAL 0xffff
151 #define TEMP1_VAL 0x8c70
152 #define TEMP2_VAL 0xa5b0
154 #define TSC_POWEROFF_DELAY 50
155 #define TSC_SOFTSTEP_DELAY 50
157 static void tsc210x_reset(struct tsc210x_state_s *s)
169 s->audio_ctrl1 = 0x0000;
170 s->audio_ctrl2 = 0x4410;
171 s->audio_ctrl3 = 0x0000;
176 s->dac_power = 0x8540;
178 s->volume_change = 0;
180 s->filter_data[0x00] = 0x6be3;
181 s->filter_data[0x01] = 0x9666;
182 s->filter_data[0x02] = 0x675d;
183 s->filter_data[0x03] = 0x6be3;
184 s->filter_data[0x04] = 0x9666;
185 s->filter_data[0x05] = 0x675d;
186 s->filter_data[0x06] = 0x7d83;
187 s->filter_data[0x07] = 0x84ee;
188 s->filter_data[0x08] = 0x7d83;
189 s->filter_data[0x09] = 0x84ee;
190 s->filter_data[0x0a] = 0x6be3;
191 s->filter_data[0x0b] = 0x9666;
192 s->filter_data[0x0c] = 0x675d;
193 s->filter_data[0x0d] = 0x6be3;
194 s->filter_data[0x0e] = 0x9666;
195 s->filter_data[0x0f] = 0x675d;
196 s->filter_data[0x10] = 0x7d83;
197 s->filter_data[0x11] = 0x84ee;
198 s->filter_data[0x12] = 0x7d83;
199 s->filter_data[0x13] = 0x84ee;
210 qemu_set_irq(s->pint, !s->irq);
211 qemu_set_irq(s->davint, !s->dav);
212 qemu_irq_raise(s->kbint);
215 struct tsc210x_rate_info_s {
221 /* { rate, dsor, fsref } */
222 static const struct tsc210x_rate_info_s tsc2101_rates[] = {
251 /* { rate, dsor, fsref } */
252 static const struct tsc210x_rate_info_s tsc2102_rates[] = {
281 static inline void tsc210x_out_flush(struct tsc210x_state_s *s, int len)
283 uint8_t *data = s->codec.out.fifo + s->codec.out.start;
284 uint8_t *end = data + len;
287 data += AUD_write(s->dac_voice[0], data, end - data) ?: (end - data);
289 s->codec.out.len -= len;
290 if (s->codec.out.len)
291 memmove(s->codec.out.fifo, end, s->codec.out.len);
292 s->codec.out.start = 0;
295 static void tsc210x_audio_out_cb(struct tsc210x_state_s *s, int free_b)
297 if (s->codec.out.len >= free_b) {
298 tsc210x_out_flush(s, free_b);
302 s->codec.out.size = MIN(free_b, 16384);
303 qemu_irq_raise(s->codec.tx_start);
306 static void tsc2102_audio_rate_update(struct tsc210x_state_s *s)
308 const struct tsc210x_rate_info_s *rate;
310 s->codec.tx_rate = 0;
311 s->codec.rx_rate = 0;
312 if (s->dac_power & (1 << 15)) /* PWDNC */
315 for (rate = tsc2102_rates; rate->rate; rate ++)
316 if (rate->dsor == (s->audio_ctrl1 & 0x3f) && /* DACFS */
317 rate->fsref == ((s->audio_ctrl3 >> 13) & 1))/* REFFS */
320 printf("%s: unknown sampling rate configured\n", __FUNCTION__);
324 s->codec.tx_rate = rate->rate;
327 static void tsc2102_audio_output_update(struct tsc210x_state_s *s)
330 struct audsettings fmt;
332 if (s->dac_voice[0]) {
333 tsc210x_out_flush(s, s->codec.out.len);
334 s->codec.out.size = 0;
335 AUD_set_active_out(s->dac_voice[0], 0);
336 AUD_close_out(&s->card, s->dac_voice[0]);
342 (~s->dac_power & (1 << 15)) && /* PWDNC */
343 (~s->dac_power & (1 << 10)); /* DAPWDN */
344 if (!enable || !s->codec.tx_rate)
347 /* Force our own sampling rate even in slave DAC mode */
350 fmt.freq = s->codec.tx_rate;
351 fmt.fmt = AUD_FMT_S16;
353 s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0],
354 "tsc2102.sink", s, (void *) tsc210x_audio_out_cb, &fmt);
355 if (s->dac_voice[0]) {
357 AUD_set_active_out(s->dac_voice[0], 1);
361 static uint16_t tsc2102_data_register_read(struct tsc210x_state_s *s, int reg)
366 return TSC_CUT_RESOLUTION(X_TRANSFORM(s), s->precision) +
372 return TSC_CUT_RESOLUTION(Y_TRANSFORM(s), s->precision) ^
377 return TSC_CUT_RESOLUTION(Z1_TRANSFORM(s), s->precision) -
382 return TSC_CUT_RESOLUTION(Z2_TRANSFORM(s), s->precision) |
385 case 0x04: /* KPData */
386 if ((s->model & 0xff00) == 0x2300) {
387 if (s->kb.intr && (s->kb.mode & 2)) {
389 qemu_irq_raise(s->kbint);
396 case 0x05: /* BAT1 */
398 return TSC_CUT_RESOLUTION(BAT1_VAL, s->precision) +
401 case 0x06: /* BAT2 */
403 return TSC_CUT_RESOLUTION(BAT2_VAL, s->precision);
405 case 0x07: /* AUX1 */
407 return TSC_CUT_RESOLUTION(AUX1_VAL, s->precision);
409 case 0x08: /* AUX2 */
413 case 0x09: /* TEMP1 */
415 return TSC_CUT_RESOLUTION(TEMP1_VAL, s->precision) -
418 case 0x0a: /* TEMP2 */
420 return TSC_CUT_RESOLUTION(TEMP2_VAL, s->precision) ^
429 fprintf(stderr, "tsc2102_data_register_read: "
430 "no such register: 0x%02x\n", reg);
436 static uint16_t tsc2102_control_register_read(
437 struct tsc210x_state_s *s, int reg)
440 case 0x00: /* TSC ADC */
441 return (s->pressure << 15) | ((!s->busy) << 14) |
442 (s->nextfunction << 10) | (s->nextprecision << 8) | s->filter;
444 case 0x01: /* Status / Keypad Control */
445 if ((s->model & 0xff00) == 0x2100)
446 return (s->pin_func << 14) | ((!s->enabled) << 13) |
447 (s->host_mode << 12) | ((!!s->dav) << 11) | s->dav;
449 return (s->kb.intr << 15) | ((s->kb.scan || !s->kb.down) << 14) |
450 (s->kb.debounce << 11);
452 case 0x02: /* DAC Control */
453 if ((s->model & 0xff00) == 0x2300)
454 return s->dac_power & 0x8000;
458 case 0x03: /* Reference */
461 case 0x04: /* Reset */
464 case 0x05: /* Configuration */
467 case 0x06: /* Secondary configuration */
468 if ((s->model & 0xff00) == 0x2100)
470 return ((!s->dav) << 15) | ((s->kb.mode & 1) << 14) | s->pll[2];
472 case 0x10: /* Keypad Mask */
473 if ((s->model & 0xff00) == 0x2100)
480 fprintf(stderr, "tsc2102_control_register_read: "
481 "no such register: 0x%02x\n", reg);
487 static uint16_t tsc2102_audio_register_read(struct tsc210x_state_s *s, int reg)
493 case 0x00: /* Audio Control 1 */
494 return s->audio_ctrl1;
499 case 0x02: /* DAC Volume Control */
505 case 0x04: /* Audio Control 2 */
508 if (s->softstep && !(s->dac_power & (1 << 10))) {
509 l_ch = (qemu_get_clock(vm_clock) >
510 s->volume_change + TSC_SOFTSTEP_DELAY);
511 r_ch = (qemu_get_clock(vm_clock) >
512 s->volume_change + TSC_SOFTSTEP_DELAY);
515 return s->audio_ctrl2 | (l_ch << 3) | (r_ch << 2);
517 case 0x05: /* Stereo DAC Power Control */
518 return 0x2aa0 | s->dac_power |
519 (((s->dac_power & (1 << 10)) &&
520 (qemu_get_clock(vm_clock) >
521 s->powerdown + TSC_POWEROFF_DELAY)) << 6);
523 case 0x06: /* Audio Control 3 */
524 val = s->audio_ctrl3 | 0x0001;
525 s->audio_ctrl3 &= 0xff3f;
528 case 0x07: /* LCH_BASS_BOOST_N0 */
529 case 0x08: /* LCH_BASS_BOOST_N1 */
530 case 0x09: /* LCH_BASS_BOOST_N2 */
531 case 0x0a: /* LCH_BASS_BOOST_N3 */
532 case 0x0b: /* LCH_BASS_BOOST_N4 */
533 case 0x0c: /* LCH_BASS_BOOST_N5 */
534 case 0x0d: /* LCH_BASS_BOOST_D1 */
535 case 0x0e: /* LCH_BASS_BOOST_D2 */
536 case 0x0f: /* LCH_BASS_BOOST_D4 */
537 case 0x10: /* LCH_BASS_BOOST_D5 */
538 case 0x11: /* RCH_BASS_BOOST_N0 */
539 case 0x12: /* RCH_BASS_BOOST_N1 */
540 case 0x13: /* RCH_BASS_BOOST_N2 */
541 case 0x14: /* RCH_BASS_BOOST_N3 */
542 case 0x15: /* RCH_BASS_BOOST_N4 */
543 case 0x16: /* RCH_BASS_BOOST_N5 */
544 case 0x17: /* RCH_BASS_BOOST_D1 */
545 case 0x18: /* RCH_BASS_BOOST_D2 */
546 case 0x19: /* RCH_BASS_BOOST_D4 */
547 case 0x1a: /* RCH_BASS_BOOST_D5 */
548 return s->filter_data[reg - 0x07];
550 case 0x1b: /* PLL Programmability 1 */
553 case 0x1c: /* PLL Programmability 2 */
556 case 0x1d: /* Audio Control 4 */
557 return (!s->softstep) << 14;
561 fprintf(stderr, "tsc2102_audio_register_read: "
562 "no such register: 0x%02x\n", reg);
568 static void tsc2102_data_register_write(
569 struct tsc210x_state_s *s, int reg, uint16_t value)
576 case 0x05: /* BAT1 */
577 case 0x06: /* BAT2 */
578 case 0x07: /* AUX1 */
579 case 0x08: /* AUX2 */
580 case 0x09: /* TEMP1 */
581 case 0x0a: /* TEMP2 */
586 fprintf(stderr, "tsc2102_data_register_write: "
587 "no such register: 0x%02x\n", reg);
592 static void tsc2102_control_register_write(
593 struct tsc210x_state_s *s, int reg, uint16_t value)
596 case 0x00: /* TSC ADC */
597 s->host_mode = value >> 15;
598 s->enabled = !(value & 0x4000);
599 if (s->busy && !s->enabled)
600 qemu_del_timer(s->timer);
601 s->busy &= s->enabled;
602 s->nextfunction = (value >> 10) & 0xf;
603 s->nextprecision = (value >> 8) & 3;
604 s->filter = value & 0xff;
607 case 0x01: /* Status / Keypad Control */
608 if ((s->model & 0xff00) == 0x2100)
609 s->pin_func = value >> 14;
611 s->kb.scan = (value >> 14) & 1;
612 s->kb.debounce = (value >> 11) & 7;
613 if (s->kb.intr && s->kb.scan) {
615 qemu_irq_raise(s->kbint);
620 case 0x02: /* DAC Control */
621 if ((s->model & 0xff00) == 0x2300) {
622 s->dac_power &= 0x7fff;
623 s->dac_power |= 0x8000 & value;
628 case 0x03: /* Reference */
629 s->ref = value & 0x1f;
632 case 0x04: /* Reset */
633 if (value == 0xbb00) {
635 qemu_del_timer(s->timer);
639 fprintf(stderr, "tsc2102_control_register_write: "
640 "wrong value written into RESET\n");
645 case 0x05: /* Configuration */
646 s->timing = value & 0x3f;
649 fprintf(stderr, "tsc2102_control_register_write: "
650 "wrong value written into CONFIG\n");
654 case 0x06: /* Secondary configuration */
655 if ((s->model & 0xff00) == 0x2100)
657 s->kb.mode = value >> 14;
658 s->pll[2] = value & 0x3ffff;
661 case 0x10: /* Keypad Mask */
662 if ((s->model & 0xff00) == 0x2100)
670 fprintf(stderr, "tsc2102_control_register_write: "
671 "no such register: 0x%02x\n", reg);
676 static void tsc2102_audio_register_write(
677 struct tsc210x_state_s *s, int reg, uint16_t value)
680 case 0x00: /* Audio Control 1 */
681 s->audio_ctrl1 = value & 0x0f3f;
683 if ((value & ~0x0f3f) || ((value & 7) != ((value >> 3) & 7)))
684 fprintf(stderr, "tsc2102_audio_register_write: "
685 "wrong value written into Audio 1\n");
687 tsc2102_audio_rate_update(s);
689 tsc2102_audio_output_update(s);
695 fprintf(stderr, "tsc2102_audio_register_write: "
696 "wrong value written into reg 0x01\n");
700 case 0x02: /* DAC Volume Control */
702 s->volume_change = qemu_get_clock(vm_clock);
708 fprintf(stderr, "tsc2102_audio_register_write: "
709 "wrong value written into reg 0x03\n");
713 case 0x04: /* Audio Control 2 */
714 s->audio_ctrl2 = value & 0xf7f2;
717 fprintf(stderr, "tsc2102_audio_register_write: "
718 "wrong value written into Audio 2\n");
722 case 0x05: /* Stereo DAC Power Control */
723 if ((value & ~s->dac_power) & (1 << 10))
724 s->powerdown = qemu_get_clock(vm_clock);
726 s->dac_power = value & 0x9543;
728 if ((value & ~0x9543) != 0x2aa0)
729 fprintf(stderr, "tsc2102_audio_register_write: "
730 "wrong value written into Power\n");
732 tsc2102_audio_rate_update(s);
734 tsc2102_audio_output_update(s);
737 case 0x06: /* Audio Control 3 */
738 s->audio_ctrl3 &= 0x00c0;
739 s->audio_ctrl3 |= value & 0xf800;
742 fprintf(stderr, "tsc2102_audio_register_write: "
743 "wrong value written into Audio 3\n");
746 tsc2102_audio_output_update(s);
749 case 0x07: /* LCH_BASS_BOOST_N0 */
750 case 0x08: /* LCH_BASS_BOOST_N1 */
751 case 0x09: /* LCH_BASS_BOOST_N2 */
752 case 0x0a: /* LCH_BASS_BOOST_N3 */
753 case 0x0b: /* LCH_BASS_BOOST_N4 */
754 case 0x0c: /* LCH_BASS_BOOST_N5 */
755 case 0x0d: /* LCH_BASS_BOOST_D1 */
756 case 0x0e: /* LCH_BASS_BOOST_D2 */
757 case 0x0f: /* LCH_BASS_BOOST_D4 */
758 case 0x10: /* LCH_BASS_BOOST_D5 */
759 case 0x11: /* RCH_BASS_BOOST_N0 */
760 case 0x12: /* RCH_BASS_BOOST_N1 */
761 case 0x13: /* RCH_BASS_BOOST_N2 */
762 case 0x14: /* RCH_BASS_BOOST_N3 */
763 case 0x15: /* RCH_BASS_BOOST_N4 */
764 case 0x16: /* RCH_BASS_BOOST_N5 */
765 case 0x17: /* RCH_BASS_BOOST_D1 */
766 case 0x18: /* RCH_BASS_BOOST_D2 */
767 case 0x19: /* RCH_BASS_BOOST_D4 */
768 case 0x1a: /* RCH_BASS_BOOST_D5 */
769 s->filter_data[reg - 0x07] = value;
772 case 0x1b: /* PLL Programmability 1 */
773 s->pll[0] = value & 0xfffc;
776 fprintf(stderr, "tsc2102_audio_register_write: "
777 "wrong value written into PLL 1\n");
781 case 0x1c: /* PLL Programmability 2 */
782 s->pll[1] = value & 0xfffc;
785 fprintf(stderr, "tsc2102_audio_register_write: "
786 "wrong value written into PLL 2\n");
790 case 0x1d: /* Audio Control 4 */
791 s->softstep = !(value & 0x4000);
794 fprintf(stderr, "tsc2102_audio_register_write: "
795 "wrong value written into Audio 4\n");
801 fprintf(stderr, "tsc2102_audio_register_write: "
802 "no such register: 0x%02x\n", reg);
807 /* This handles most of the chip logic. */
808 static void tsc210x_pin_update(struct tsc210x_state_s *s)
813 switch (s->pin_func) {
815 pin_state = s->pressure;
818 pin_state = !!s->dav;
822 pin_state = s->pressure && !s->dav;
828 if (pin_state != s->irq) {
830 qemu_set_irq(s->pint, !s->irq);
833 switch (s->nextfunction) {
834 case TSC_MODE_XY_SCAN:
835 case TSC_MODE_XYZ_SCAN:
855 case TSC_MODE_AUX_SCAN:
856 case TSC_MODE_PORT_SCAN:
859 case TSC_MODE_NO_SCAN:
860 case TSC_MODE_XX_DRV:
861 case TSC_MODE_YY_DRV:
862 case TSC_MODE_YX_DRV:
867 if (!s->enabled || s->busy || s->dav)
871 s->precision = s->nextprecision;
872 s->function = s->nextfunction;
873 expires = qemu_get_clock(vm_clock) + (ticks_per_sec >> 10);
874 qemu_mod_timer(s->timer, expires);
877 static uint16_t tsc210x_read(struct tsc210x_state_s *s)
879 uint16_t ret = 0x0000;
882 fprintf(stderr, "tsc210x_read: SPI underrun!\n");
885 case TSC_DATA_REGISTERS_PAGE:
886 ret = tsc2102_data_register_read(s, s->offset);
888 qemu_irq_raise(s->davint);
890 case TSC_CONTROL_REGISTERS_PAGE:
891 ret = tsc2102_control_register_read(s, s->offset);
893 case TSC_AUDIO_REGISTERS_PAGE:
894 ret = tsc2102_audio_register_read(s, s->offset);
897 cpu_abort(cpu_single_env, "tsc210x_read: wrong memory page\n");
900 tsc210x_pin_update(s);
902 /* Allow sequential reads. */
908 static void tsc210x_write(struct tsc210x_state_s *s, uint16_t value)
911 * This is a two-state state machine for reading
912 * command and data every second time.
915 s->command = value >> 15;
916 s->page = (value >> 11) & 0x0f;
917 s->offset = (value >> 5) & 0x3f;
921 fprintf(stderr, "tsc210x_write: SPI overrun!\n");
924 case TSC_DATA_REGISTERS_PAGE:
925 tsc2102_data_register_write(s, s->offset, value);
927 case TSC_CONTROL_REGISTERS_PAGE:
928 tsc2102_control_register_write(s, s->offset, value);
930 case TSC_AUDIO_REGISTERS_PAGE:
931 tsc2102_audio_register_write(s, s->offset, value);
934 cpu_abort(cpu_single_env,
935 "tsc210x_write: wrong memory page\n");
938 tsc210x_pin_update(s);
943 uint32_t tsc210x_txrx(void *opaque, uint32_t value, int len)
945 struct tsc210x_state_s *s = opaque;
949 cpu_abort(cpu_single_env, "%s: FIXME: bad SPI word width %i\n",
952 /* TODO: sequential reads etc - how do we make sure the host doesn't
953 * unintentionally read out a conversion result from a register while
954 * transmitting the command word of the next command? */
955 if (!value || (s->state && s->command))
956 ret = tsc210x_read(s);
957 if (value || (s->state && !s->command))
958 tsc210x_write(s, value);
963 static void tsc210x_timer_tick(void *opaque)
965 struct tsc210x_state_s *s = opaque;
967 /* Timer ticked -- a set of conversions has been finished. */
973 s->dav |= mode_regs[s->function];
974 tsc210x_pin_update(s);
975 qemu_irq_lower(s->davint);
978 static void tsc210x_touchscreen_event(void *opaque,
979 int x, int y, int z, int buttons_state)
981 struct tsc210x_state_s *s = opaque;
988 s->pressure = !!buttons_state;
991 * Note: We would get better responsiveness in the guest by
992 * signaling TS events immediately, but for now we simulate
993 * the first conversion delay for sake of correctness.
995 if (p != s->pressure)
996 tsc210x_pin_update(s);
999 static void tsc210x_i2s_swallow(struct tsc210x_state_s *s)
1001 if (s->dac_voice[0])
1002 tsc210x_out_flush(s, s->codec.out.len);
1004 s->codec.out.len = 0;
1007 static void tsc210x_i2s_set_rate(struct tsc210x_state_s *s, int in, int out)
1009 s->i2s_tx_rate = out;
1010 s->i2s_rx_rate = in;
1013 static void tsc210x_save(QEMUFile *f, void *opaque)
1015 struct tsc210x_state_s *s = (struct tsc210x_state_s *) opaque;
1016 int64_t now = qemu_get_clock(vm_clock);
1019 qemu_put_be16(f, s->x);
1020 qemu_put_be16(f, s->y);
1021 qemu_put_byte(f, s->pressure);
1023 qemu_put_byte(f, s->state);
1024 qemu_put_byte(f, s->page);
1025 qemu_put_byte(f, s->offset);
1026 qemu_put_byte(f, s->command);
1028 qemu_put_byte(f, s->irq);
1029 qemu_put_be16s(f, &s->dav);
1031 qemu_put_timer(f, s->timer);
1032 qemu_put_byte(f, s->enabled);
1033 qemu_put_byte(f, s->host_mode);
1034 qemu_put_byte(f, s->function);
1035 qemu_put_byte(f, s->nextfunction);
1036 qemu_put_byte(f, s->precision);
1037 qemu_put_byte(f, s->nextprecision);
1038 qemu_put_byte(f, s->filter);
1039 qemu_put_byte(f, s->pin_func);
1040 qemu_put_byte(f, s->ref);
1041 qemu_put_byte(f, s->timing);
1042 qemu_put_be32(f, s->noise);
1044 qemu_put_be16s(f, &s->audio_ctrl1);
1045 qemu_put_be16s(f, &s->audio_ctrl2);
1046 qemu_put_be16s(f, &s->audio_ctrl3);
1047 qemu_put_be16s(f, &s->pll[0]);
1048 qemu_put_be16s(f, &s->pll[1]);
1049 qemu_put_be16s(f, &s->volume);
1050 qemu_put_sbe64(f, (s->volume_change - now));
1051 qemu_put_sbe64(f, (s->powerdown - now));
1052 qemu_put_byte(f, s->softstep);
1053 qemu_put_be16s(f, &s->dac_power);
1055 for (i = 0; i < 0x14; i ++)
1056 qemu_put_be16s(f, &s->filter_data[i]);
1059 static int tsc210x_load(QEMUFile *f, void *opaque, int version_id)
1061 struct tsc210x_state_s *s = (struct tsc210x_state_s *) opaque;
1062 int64_t now = qemu_get_clock(vm_clock);
1065 s->x = qemu_get_be16(f);
1066 s->y = qemu_get_be16(f);
1067 s->pressure = qemu_get_byte(f);
1069 s->state = qemu_get_byte(f);
1070 s->page = qemu_get_byte(f);
1071 s->offset = qemu_get_byte(f);
1072 s->command = qemu_get_byte(f);
1074 s->irq = qemu_get_byte(f);
1075 qemu_get_be16s(f, &s->dav);
1077 qemu_get_timer(f, s->timer);
1078 s->enabled = qemu_get_byte(f);
1079 s->host_mode = qemu_get_byte(f);
1080 s->function = qemu_get_byte(f);
1081 s->nextfunction = qemu_get_byte(f);
1082 s->precision = qemu_get_byte(f);
1083 s->nextprecision = qemu_get_byte(f);
1084 s->filter = qemu_get_byte(f);
1085 s->pin_func = qemu_get_byte(f);
1086 s->ref = qemu_get_byte(f);
1087 s->timing = qemu_get_byte(f);
1088 s->noise = qemu_get_be32(f);
1090 qemu_get_be16s(f, &s->audio_ctrl1);
1091 qemu_get_be16s(f, &s->audio_ctrl2);
1092 qemu_get_be16s(f, &s->audio_ctrl3);
1093 qemu_get_be16s(f, &s->pll[0]);
1094 qemu_get_be16s(f, &s->pll[1]);
1095 qemu_get_be16s(f, &s->volume);
1096 s->volume_change = qemu_get_sbe64(f) + now;
1097 s->powerdown = qemu_get_sbe64(f) + now;
1098 s->softstep = qemu_get_byte(f);
1099 qemu_get_be16s(f, &s->dac_power);
1101 for (i = 0; i < 0x14; i ++)
1102 qemu_get_be16s(f, &s->filter_data[i]);
1104 s->busy = qemu_timer_pending(s->timer);
1105 qemu_set_irq(s->pint, !s->irq);
1106 qemu_set_irq(s->davint, !s->dav);
1111 struct uwire_slave_s *tsc2102_init(qemu_irq pint, AudioState *audio)
1113 struct tsc210x_state_s *s;
1115 s = (struct tsc210x_state_s *)
1116 qemu_mallocz(sizeof(struct tsc210x_state_s));
1117 memset(s, 0, sizeof(struct tsc210x_state_s));
1121 s->precision = s->nextprecision = 0;
1122 s->timer = qemu_new_timer(vm_clock, tsc210x_timer_tick, s);
1125 s->name = "tsc2102";
1138 s->chip.send = (void *) tsc210x_write;
1139 s->chip.receive = (void *) tsc210x_read;
1141 s->codec.opaque = s;
1142 s->codec.tx_swallow = (void *) tsc210x_i2s_swallow;
1143 s->codec.set_rate = (void *) tsc210x_i2s_set_rate;
1144 s->codec.in.fifo = s->in_fifo;
1145 s->codec.out.fifo = s->out_fifo;
1149 qemu_add_mouse_event_handler(tsc210x_touchscreen_event, s, 1,
1150 "QEMU TSC2102-driven Touchscreen");
1153 AUD_register_card(s->audio, s->name, &s->card);
1155 qemu_register_reset((void *) tsc210x_reset, s);
1156 register_savevm(s->name, -1, 0,
1157 tsc210x_save, tsc210x_load, s);
1162 struct uwire_slave_s *tsc2301_init(qemu_irq penirq, qemu_irq kbirq,
1163 qemu_irq dav, AudioState *audio)
1165 struct tsc210x_state_s *s;
1167 s = (struct tsc210x_state_s *)
1168 qemu_mallocz(sizeof(struct tsc210x_state_s));
1169 memset(s, 0, sizeof(struct tsc210x_state_s));
1173 s->precision = s->nextprecision = 0;
1174 s->timer = qemu_new_timer(vm_clock, tsc210x_timer_tick, s);
1179 s->name = "tsc2301";
1192 s->chip.send = (void *) tsc210x_write;
1193 s->chip.receive = (void *) tsc210x_read;
1195 s->codec.opaque = s;
1196 s->codec.tx_swallow = (void *) tsc210x_i2s_swallow;
1197 s->codec.set_rate = (void *) tsc210x_i2s_set_rate;
1198 s->codec.in.fifo = s->in_fifo;
1199 s->codec.out.fifo = s->out_fifo;
1203 qemu_add_mouse_event_handler(tsc210x_touchscreen_event, s, 1,
1204 "QEMU TSC2301-driven Touchscreen");
1207 AUD_register_card(s->audio, s->name, &s->card);
1209 qemu_register_reset((void *) tsc210x_reset, s);
1210 register_savevm(s->name, -1, 0, tsc210x_save, tsc210x_load, s);
1215 struct i2s_codec_s *tsc210x_codec(struct uwire_slave_s *chip)
1217 struct tsc210x_state_s *s = (struct tsc210x_state_s *) chip->opaque;
1223 * Use tslib generated calibration data to generate ADC input values
1224 * from the touchscreen. Assuming 12-bit precision was used during
1225 * tslib calibration.
1227 void tsc210x_set_transform(struct uwire_slave_s *chip,
1228 struct mouse_transform_info_s *info)
1230 struct tsc210x_state_s *s = (struct tsc210x_state_s *) chip->opaque;
1234 ltr[0] = (int64_t) info->a[1] * info->y;
1235 ltr[1] = (int64_t) info->a[4] * info->x;
1236 ltr[2] = (int64_t) info->a[1] * info->a[3] -
1237 (int64_t) info->a[4] * info->a[0];
1238 ltr[3] = (int64_t) info->a[2] * info->a[4] -
1239 (int64_t) info->a[5] * info->a[1];
1240 ltr[4] = (int64_t) info->a[0] * info->y;
1241 ltr[5] = (int64_t) info->a[3] * info->x;
1242 ltr[6] = (int64_t) info->a[4] * info->a[0] -
1243 (int64_t) info->a[1] * info->a[3];
1244 ltr[7] = (int64_t) info->a[2] * info->a[3] -
1245 (int64_t) info->a[5] * info->a[0];
1247 /* Avoid integer overflow */
1248 s->tr[0] = ltr[0] >> 11;
1249 s->tr[1] = ltr[1] >> 11;
1250 s->tr[2] = muldiv64(ltr[2], 1, info->a[6]);
1251 s->tr[3] = muldiv64(ltr[3], 1 << 4, ltr[2]);
1252 s->tr[4] = ltr[4] >> 11;
1253 s->tr[5] = ltr[5] >> 11;
1254 s->tr[6] = muldiv64(ltr[6], 1, info->a[6]);
1255 s->tr[7] = muldiv64(ltr[7], 1 << 4, ltr[6]);
1258 /* This version assumes touchscreen X & Y axis are parallel or
1259 * perpendicular to LCD's X & Y axis in some way. */
1260 if (abs(info->a[0]) > abs(info->a[1])) {
1262 s->tr[1] = -info->a[6] * info->x;
1263 s->tr[2] = info->a[0];
1264 s->tr[3] = -info->a[2] / info->a[0];
1265 s->tr[4] = info->a[6] * info->y;
1267 s->tr[6] = info->a[4];
1268 s->tr[7] = -info->a[5] / info->a[4];
1270 s->tr[0] = info->a[6] * info->y;
1272 s->tr[2] = info->a[1];
1273 s->tr[3] = -info->a[2] / info->a[1];
1275 s->tr[5] = -info->a[6] * info->x;
1276 s->tr[6] = info->a[3];
1277 s->tr[7] = -info->a[5] / info->a[3];
1289 void tsc210x_key_event(struct uwire_slave_s *chip, int key, int down)
1291 struct tsc210x_state_s *s = (struct tsc210x_state_s *) chip->opaque;
1294 s->kb.down |= 1 << key;
1296 s->kb.down &= ~(1 << key);
1298 if (down && (s->kb.down & ~s->kb.mask) && !s->kb.intr) {
1300 qemu_irq_lower(s->kbint);
1301 } else if (s->kb.intr && !(s->kb.down & ~s->kb.mask) &&
1302 !(s->kb.mode & 1)) {
1304 qemu_irq_raise(s->kbint);