| /* |
| * TI TSC2102 (touchscreen/sensors/audio controller) emulator. |
| * TI TSC2301 (touchscreen/sensors/keypad). |
| * |
| * Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org> |
| * Copyright (C) 2008 Nokia Corporation |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 or |
| * (at your option) version 3 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "hw/hw.h" |
| #include "audio/audio.h" |
| #include "qemu/timer.h" |
| #include "qemu/log.h" |
| #include "sysemu/reset.h" |
| #include "ui/console.h" |
| #include "hw/arm/omap.h" /* For I2SCodec */ |
| #include "hw/input/tsc2xxx.h" |
| #include "hw/irq.h" |
| #include "migration/vmstate.h" |
| #include "qapi/error.h" |
| |
| #define TSC_DATA_REGISTERS_PAGE 0x0 |
| #define TSC_CONTROL_REGISTERS_PAGE 0x1 |
| #define TSC_AUDIO_REGISTERS_PAGE 0x2 |
| |
| #define TSC_VERBOSE |
| |
| #define TSC_CUT_RESOLUTION(value, p) ((value) >> (16 - resolution[p])) |
| |
| typedef struct { |
| qemu_irq pint; |
| qemu_irq kbint; |
| qemu_irq davint; |
| QEMUTimer *timer; |
| QEMUSoundCard card; |
| uWireSlave chip; |
| I2SCodec codec; |
| uint8_t in_fifo[16384]; |
| uint8_t out_fifo[16384]; |
| uint16_t model; |
| |
| int32_t x, y; |
| bool pressure; |
| |
| uint8_t page, offset; |
| uint16_t dav; |
| |
| bool state; |
| bool irq; |
| bool command; |
| bool busy; |
| bool enabled; |
| bool host_mode; |
| uint8_t function, nextfunction; |
| uint8_t precision, nextprecision; |
| uint8_t filter; |
| uint8_t pin_func; |
| uint8_t ref; |
| uint8_t timing; |
| uint8_t noise; |
| |
| uint16_t audio_ctrl1; |
| uint16_t audio_ctrl2; |
| uint16_t audio_ctrl3; |
| uint16_t pll[3]; |
| uint16_t volume; |
| int64_t volume_change; |
| bool softstep; |
| uint16_t dac_power; |
| int64_t powerdown; |
| uint16_t filter_data[0x14]; |
| |
| const char *name; |
| SWVoiceIn *adc_voice[1]; |
| SWVoiceOut *dac_voice[1]; |
| int i2s_rx_rate; |
| int i2s_tx_rate; |
| |
| int tr[8]; |
| |
| struct { |
| uint16_t down; |
| uint16_t mask; |
| int scan; |
| int debounce; |
| int mode; |
| int intr; |
| } kb; |
| int64_t now; /* Time at migration */ |
| } TSC210xState; |
| |
| static const int resolution[4] = { 12, 8, 10, 12 }; |
| |
| #define TSC_MODE_NO_SCAN 0x0 |
| #define TSC_MODE_XY_SCAN 0x1 |
| #define TSC_MODE_XYZ_SCAN 0x2 |
| #define TSC_MODE_X 0x3 |
| #define TSC_MODE_Y 0x4 |
| #define TSC_MODE_Z 0x5 |
| #define TSC_MODE_BAT1 0x6 |
| #define TSC_MODE_BAT2 0x7 |
| #define TSC_MODE_AUX 0x8 |
| #define TSC_MODE_AUX_SCAN 0x9 |
| #define TSC_MODE_TEMP1 0xa |
| #define TSC_MODE_PORT_SCAN 0xb |
| #define TSC_MODE_TEMP2 0xc |
| #define TSC_MODE_XX_DRV 0xd |
| #define TSC_MODE_YY_DRV 0xe |
| #define TSC_MODE_YX_DRV 0xf |
| |
| static const uint16_t mode_regs[16] = { |
| 0x0000, /* No scan */ |
| 0x0600, /* X, Y scan */ |
| 0x0780, /* X, Y, Z scan */ |
| 0x0400, /* X */ |
| 0x0200, /* Y */ |
| 0x0180, /* Z */ |
| 0x0040, /* BAT1 */ |
| 0x0030, /* BAT2 */ |
| 0x0010, /* AUX */ |
| 0x0010, /* AUX scan */ |
| 0x0004, /* TEMP1 */ |
| 0x0070, /* Port scan */ |
| 0x0002, /* TEMP2 */ |
| 0x0000, /* X+, X- drivers */ |
| 0x0000, /* Y+, Y- drivers */ |
| 0x0000, /* Y+, X- drivers */ |
| }; |
| |
| #define X_TRANSFORM(s) \ |
| ((s->y * s->tr[0] - s->x * s->tr[1]) / s->tr[2] + s->tr[3]) |
| #define Y_TRANSFORM(s) \ |
| ((s->y * s->tr[4] - s->x * s->tr[5]) / s->tr[6] + s->tr[7]) |
| #define Z1_TRANSFORM(s) \ |
| ((400 - ((s)->x >> 7) + ((s)->pressure << 10)) << 4) |
| #define Z2_TRANSFORM(s) \ |
| ((4000 + ((s)->y >> 7) - ((s)->pressure << 10)) << 4) |
| |
| #define BAT1_VAL 0x8660 |
| #define BAT2_VAL 0x0000 |
| #define AUX1_VAL 0x35c0 |
| #define AUX2_VAL 0xffff |
| #define TEMP1_VAL 0x8c70 |
| #define TEMP2_VAL 0xa5b0 |
| |
| #define TSC_POWEROFF_DELAY 50 |
| #define TSC_SOFTSTEP_DELAY 50 |
| |
| static void tsc210x_reset(TSC210xState *s) |
| { |
| s->state = false; |
| s->pin_func = 2; |
| s->enabled = false; |
| s->busy = false; |
| s->nextfunction = 0; |
| s->ref = 0; |
| s->timing = 0; |
| s->irq = false; |
| s->dav = 0; |
| |
| s->audio_ctrl1 = 0x0000; |
| s->audio_ctrl2 = 0x4410; |
| s->audio_ctrl3 = 0x0000; |
| s->pll[0] = 0x1004; |
| s->pll[1] = 0x0000; |
| s->pll[2] = 0x1fff; |
| s->volume = 0xffff; |
| s->dac_power = 0x8540; |
| s->softstep = true; |
| s->volume_change = 0; |
| s->powerdown = 0; |
| s->filter_data[0x00] = 0x6be3; |
| s->filter_data[0x01] = 0x9666; |
| s->filter_data[0x02] = 0x675d; |
| s->filter_data[0x03] = 0x6be3; |
| s->filter_data[0x04] = 0x9666; |
| s->filter_data[0x05] = 0x675d; |
| s->filter_data[0x06] = 0x7d83; |
| s->filter_data[0x07] = 0x84ee; |
| s->filter_data[0x08] = 0x7d83; |
| s->filter_data[0x09] = 0x84ee; |
| s->filter_data[0x0a] = 0x6be3; |
| s->filter_data[0x0b] = 0x9666; |
| s->filter_data[0x0c] = 0x675d; |
| s->filter_data[0x0d] = 0x6be3; |
| s->filter_data[0x0e] = 0x9666; |
| s->filter_data[0x0f] = 0x675d; |
| s->filter_data[0x10] = 0x7d83; |
| s->filter_data[0x11] = 0x84ee; |
| s->filter_data[0x12] = 0x7d83; |
| s->filter_data[0x13] = 0x84ee; |
| |
| s->i2s_tx_rate = 0; |
| s->i2s_rx_rate = 0; |
| |
| s->kb.scan = 1; |
| s->kb.debounce = 0; |
| s->kb.mask = 0x0000; |
| s->kb.mode = 3; |
| s->kb.intr = 0; |
| |
| qemu_set_irq(s->pint, !s->irq); |
| qemu_set_irq(s->davint, !s->dav); |
| qemu_irq_raise(s->kbint); |
| } |
| |
| typedef struct { |
| int rate; |
| int dsor; |
| int fsref; |
| } TSC210xRateInfo; |
| |
| /* { rate, dsor, fsref } */ |
| static const TSC210xRateInfo tsc2102_rates[] = { |
| /* Fsref / 6.0 */ |
| { 7350, 63, 1 }, |
| { 8000, 63, 0 }, |
| /* Fsref / 6.0 */ |
| { 7350, 54, 1 }, |
| { 8000, 54, 0 }, |
| /* Fsref / 5.0 */ |
| { 8820, 45, 1 }, |
| { 9600, 45, 0 }, |
| /* Fsref / 4.0 */ |
| { 11025, 36, 1 }, |
| { 12000, 36, 0 }, |
| /* Fsref / 3.0 */ |
| { 14700, 27, 1 }, |
| { 16000, 27, 0 }, |
| /* Fsref / 2.0 */ |
| { 22050, 18, 1 }, |
| { 24000, 18, 0 }, |
| /* Fsref / 1.5 */ |
| { 29400, 9, 1 }, |
| { 32000, 9, 0 }, |
| /* Fsref */ |
| { 44100, 0, 1 }, |
| { 48000, 0, 0 }, |
| |
| { 0, 0, 0 }, |
| }; |
| |
| static inline void tsc210x_out_flush(TSC210xState *s, int len) |
| { |
| uint8_t *data = s->codec.out.fifo + s->codec.out.start; |
| uint8_t *end = data + len; |
| |
| while (data < end) |
| data += AUD_write(s->dac_voice[0], data, end - data) ?: (end - data); |
| |
| s->codec.out.len -= len; |
| if (s->codec.out.len) |
| memmove(s->codec.out.fifo, end, s->codec.out.len); |
| s->codec.out.start = 0; |
| } |
| |
| static void tsc210x_audio_out_cb(TSC210xState *s, int free_b) |
| { |
| if (s->codec.out.len >= free_b) { |
| tsc210x_out_flush(s, free_b); |
| return; |
| } |
| |
| s->codec.out.size = MIN(free_b, 16384); |
| qemu_irq_raise(s->codec.tx_start); |
| } |
| |
| static void tsc2102_audio_rate_update(TSC210xState *s) |
| { |
| const TSC210xRateInfo *rate; |
| |
| s->codec.tx_rate = 0; |
| s->codec.rx_rate = 0; |
| if (s->dac_power & (1 << 15)) /* PWDNC */ |
| return; |
| |
| for (rate = tsc2102_rates; rate->rate; rate ++) |
| if (rate->dsor == (s->audio_ctrl1 & 0x3f) && /* DACFS */ |
| rate->fsref == ((s->audio_ctrl3 >> 13) & 1))/* REFFS */ |
| break; |
| if (!rate->rate) { |
| printf("%s: unknown sampling rate configured\n", __func__); |
| return; |
| } |
| |
| s->codec.tx_rate = rate->rate; |
| } |
| |
| static void tsc2102_audio_output_update(TSC210xState *s) |
| { |
| int enable; |
| struct audsettings fmt; |
| |
| if (s->dac_voice[0]) { |
| tsc210x_out_flush(s, s->codec.out.len); |
| s->codec.out.size = 0; |
| AUD_set_active_out(s->dac_voice[0], 0); |
| AUD_close_out(&s->card, s->dac_voice[0]); |
| s->dac_voice[0] = NULL; |
| } |
| s->codec.cts = 0; |
| |
| enable = |
| (~s->dac_power & (1 << 15)) && /* PWDNC */ |
| (~s->dac_power & (1 << 10)); /* DAPWDN */ |
| if (!enable || !s->codec.tx_rate) |
| return; |
| |
| /* Force our own sampling rate even in slave DAC mode */ |
| fmt.endianness = 0; |
| fmt.nchannels = 2; |
| fmt.freq = s->codec.tx_rate; |
| fmt.fmt = AUDIO_FORMAT_S16; |
| |
| s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0], |
| "tsc2102.sink", s, (void *) tsc210x_audio_out_cb, &fmt); |
| if (s->dac_voice[0]) { |
| s->codec.cts = 1; |
| AUD_set_active_out(s->dac_voice[0], 1); |
| } |
| } |
| |
| static uint16_t tsc2102_data_register_read(TSC210xState *s, int reg) |
| { |
| switch (reg) { |
| case 0x00: /* X */ |
| s->dav &= 0xfbff; |
| return TSC_CUT_RESOLUTION(X_TRANSFORM(s), s->precision) + |
| (s->noise & 3); |
| |
| case 0x01: /* Y */ |
| s->noise ++; |
| s->dav &= 0xfdff; |
| return TSC_CUT_RESOLUTION(Y_TRANSFORM(s), s->precision) ^ |
| (s->noise & 3); |
| |
| case 0x02: /* Z1 */ |
| s->dav &= 0xfeff; |
| return TSC_CUT_RESOLUTION(Z1_TRANSFORM(s), s->precision) - |
| (s->noise & 3); |
| |
| case 0x03: /* Z2 */ |
| s->dav &= 0xff7f; |
| return TSC_CUT_RESOLUTION(Z2_TRANSFORM(s), s->precision) | |
| (s->noise & 3); |
| |
| case 0x04: /* KPData */ |
| if ((s->model & 0xff00) == 0x2300) { |
| if (s->kb.intr && (s->kb.mode & 2)) { |
| s->kb.intr = 0; |
| qemu_irq_raise(s->kbint); |
| } |
| return s->kb.down; |
| } |
| |
| return 0xffff; |
| |
| case 0x05: /* BAT1 */ |
| s->dav &= 0xffbf; |
| return TSC_CUT_RESOLUTION(BAT1_VAL, s->precision) + |
| (s->noise & 6); |
| |
| case 0x06: /* BAT2 */ |
| s->dav &= 0xffdf; |
| return TSC_CUT_RESOLUTION(BAT2_VAL, s->precision); |
| |
| case 0x07: /* AUX1 */ |
| s->dav &= 0xffef; |
| return TSC_CUT_RESOLUTION(AUX1_VAL, s->precision); |
| |
| case 0x08: /* AUX2 */ |
| s->dav &= 0xfff7; |
| return 0xffff; |
| |
| case 0x09: /* TEMP1 */ |
| s->dav &= 0xfffb; |
| return TSC_CUT_RESOLUTION(TEMP1_VAL, s->precision) - |
| (s->noise & 5); |
| |
| case 0x0a: /* TEMP2 */ |
| s->dav &= 0xfffd; |
| return TSC_CUT_RESOLUTION(TEMP2_VAL, s->precision) ^ |
| (s->noise & 3); |
| |
| case 0x0b: /* DAC */ |
| s->dav &= 0xfffe; |
| return 0xffff; |
| |
| default: |
| #ifdef TSC_VERBOSE |
| fprintf(stderr, "tsc2102_data_register_read: " |
| "no such register: 0x%02x\n", reg); |
| #endif |
| return 0xffff; |
| } |
| } |
| |
| static uint16_t tsc2102_control_register_read( |
| TSC210xState *s, int reg) |
| { |
| switch (reg) { |
| case 0x00: /* TSC ADC */ |
| return (s->pressure << 15) | ((!s->busy) << 14) | |
| (s->nextfunction << 10) | (s->nextprecision << 8) | s->filter; |
| |
| case 0x01: /* Status / Keypad Control */ |
| if ((s->model & 0xff00) == 0x2100) |
| return (s->pin_func << 14) | ((!s->enabled) << 13) | |
| (s->host_mode << 12) | ((!!s->dav) << 11) | s->dav; |
| else |
| return (s->kb.intr << 15) | ((s->kb.scan || !s->kb.down) << 14) | |
| (s->kb.debounce << 11); |
| |
| case 0x02: /* DAC Control */ |
| if ((s->model & 0xff00) == 0x2300) |
| return s->dac_power & 0x8000; |
| else |
| goto bad_reg; |
| |
| case 0x03: /* Reference */ |
| return s->ref; |
| |
| case 0x04: /* Reset */ |
| return 0xffff; |
| |
| case 0x05: /* Configuration */ |
| return s->timing; |
| |
| case 0x06: /* Secondary configuration */ |
| if ((s->model & 0xff00) == 0x2100) |
| goto bad_reg; |
| return ((!s->dav) << 15) | ((s->kb.mode & 1) << 14) | s->pll[2]; |
| |
| case 0x10: /* Keypad Mask */ |
| if ((s->model & 0xff00) == 0x2100) |
| goto bad_reg; |
| return s->kb.mask; |
| |
| default: |
| bad_reg: |
| #ifdef TSC_VERBOSE |
| fprintf(stderr, "tsc2102_control_register_read: " |
| "no such register: 0x%02x\n", reg); |
| #endif |
| return 0xffff; |
| } |
| } |
| |
| static uint16_t tsc2102_audio_register_read(TSC210xState *s, int reg) |
| { |
| int l_ch, r_ch; |
| uint16_t val; |
| |
| switch (reg) { |
| case 0x00: /* Audio Control 1 */ |
| return s->audio_ctrl1; |
| |
| case 0x01: |
| return 0xff00; |
| |
| case 0x02: /* DAC Volume Control */ |
| return s->volume; |
| |
| case 0x03: |
| return 0x8b00; |
| |
| case 0x04: /* Audio Control 2 */ |
| l_ch = 1; |
| r_ch = 1; |
| if (s->softstep && !(s->dac_power & (1 << 10))) { |
| l_ch = (qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) > |
| s->volume_change + TSC_SOFTSTEP_DELAY); |
| r_ch = (qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) > |
| s->volume_change + TSC_SOFTSTEP_DELAY); |
| } |
| |
| return s->audio_ctrl2 | (l_ch << 3) | (r_ch << 2); |
| |
| case 0x05: /* Stereo DAC Power Control */ |
| return 0x2aa0 | s->dac_power | |
| (((s->dac_power & (1 << 10)) && |
| (qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) > |
| s->powerdown + TSC_POWEROFF_DELAY)) << 6); |
| |
| case 0x06: /* Audio Control 3 */ |
| val = s->audio_ctrl3 | 0x0001; |
| s->audio_ctrl3 &= 0xff3f; |
| return val; |
| |
| case 0x07: /* LCH_BASS_BOOST_N0 */ |
| case 0x08: /* LCH_BASS_BOOST_N1 */ |
| case 0x09: /* LCH_BASS_BOOST_N2 */ |
| case 0x0a: /* LCH_BASS_BOOST_N3 */ |
| case 0x0b: /* LCH_BASS_BOOST_N4 */ |
| case 0x0c: /* LCH_BASS_BOOST_N5 */ |
| case 0x0d: /* LCH_BASS_BOOST_D1 */ |
| case 0x0e: /* LCH_BASS_BOOST_D2 */ |
| case 0x0f: /* LCH_BASS_BOOST_D4 */ |
| case 0x10: /* LCH_BASS_BOOST_D5 */ |
| case 0x11: /* RCH_BASS_BOOST_N0 */ |
| case 0x12: /* RCH_BASS_BOOST_N1 */ |
| case 0x13: /* RCH_BASS_BOOST_N2 */ |
| case 0x14: /* RCH_BASS_BOOST_N3 */ |
| case 0x15: /* RCH_BASS_BOOST_N4 */ |
| case 0x16: /* RCH_BASS_BOOST_N5 */ |
| case 0x17: /* RCH_BASS_BOOST_D1 */ |
| case 0x18: /* RCH_BASS_BOOST_D2 */ |
| case 0x19: /* RCH_BASS_BOOST_D4 */ |
| case 0x1a: /* RCH_BASS_BOOST_D5 */ |
| return s->filter_data[reg - 0x07]; |
| |
| case 0x1b: /* PLL Programmability 1 */ |
| return s->pll[0]; |
| |
| case 0x1c: /* PLL Programmability 2 */ |
| return s->pll[1]; |
| |
| case 0x1d: /* Audio Control 4 */ |
| return (!s->softstep) << 14; |
| |
| default: |
| #ifdef TSC_VERBOSE |
| fprintf(stderr, "tsc2102_audio_register_read: " |
| "no such register: 0x%02x\n", reg); |
| #endif |
| return 0xffff; |
| } |
| } |
| |
| static void tsc2102_data_register_write( |
| TSC210xState *s, int reg, uint16_t value) |
| { |
| switch (reg) { |
| case 0x00: /* X */ |
| case 0x01: /* Y */ |
| case 0x02: /* Z1 */ |
| case 0x03: /* Z2 */ |
| case 0x05: /* BAT1 */ |
| case 0x06: /* BAT2 */ |
| case 0x07: /* AUX1 */ |
| case 0x08: /* AUX2 */ |
| case 0x09: /* TEMP1 */ |
| case 0x0a: /* TEMP2 */ |
| return; |
| |
| default: |
| qemu_log_mask(LOG_GUEST_ERROR, "tsc2102_data_register_write: " |
| "no such register: 0x%02x\n", reg); |
| } |
| } |
| |
| static void tsc2102_control_register_write( |
| TSC210xState *s, int reg, uint16_t value) |
| { |
| switch (reg) { |
| case 0x00: /* TSC ADC */ |
| s->host_mode = value >> 15; |
| s->enabled = !(value & 0x4000); |
| if (s->busy && !s->enabled) |
| timer_del(s->timer); |
| s->busy = s->busy && s->enabled; |
| s->nextfunction = (value >> 10) & 0xf; |
| s->nextprecision = (value >> 8) & 3; |
| s->filter = value & 0xff; |
| return; |
| |
| case 0x01: /* Status / Keypad Control */ |
| if ((s->model & 0xff00) == 0x2100) |
| s->pin_func = value >> 14; |
| else { |
| s->kb.scan = (value >> 14) & 1; |
| s->kb.debounce = (value >> 11) & 7; |
| if (s->kb.intr && s->kb.scan) { |
| s->kb.intr = 0; |
| qemu_irq_raise(s->kbint); |
| } |
| } |
| return; |
| |
| case 0x02: /* DAC Control */ |
| if ((s->model & 0xff00) == 0x2300) { |
| s->dac_power &= 0x7fff; |
| s->dac_power |= 0x8000 & value; |
| } else |
| goto bad_reg; |
| break; |
| |
| case 0x03: /* Reference */ |
| s->ref = value & 0x1f; |
| return; |
| |
| case 0x04: /* Reset */ |
| if (value == 0xbb00) { |
| if (s->busy) |
| timer_del(s->timer); |
| tsc210x_reset(s); |
| #ifdef TSC_VERBOSE |
| } else { |
| fprintf(stderr, "tsc2102_control_register_write: " |
| "wrong value written into RESET\n"); |
| #endif |
| } |
| return; |
| |
| case 0x05: /* Configuration */ |
| s->timing = value & 0x3f; |
| #ifdef TSC_VERBOSE |
| if (value & ~0x3f) |
| fprintf(stderr, "tsc2102_control_register_write: " |
| "wrong value written into CONFIG\n"); |
| #endif |
| return; |
| |
| case 0x06: /* Secondary configuration */ |
| if ((s->model & 0xff00) == 0x2100) |
| goto bad_reg; |
| s->kb.mode = value >> 14; |
| s->pll[2] = value & 0x3ffff; |
| return; |
| |
| case 0x10: /* Keypad Mask */ |
| if ((s->model & 0xff00) == 0x2100) |
| goto bad_reg; |
| s->kb.mask = value; |
| return; |
| |
| default: |
| bad_reg: |
| qemu_log_mask(LOG_GUEST_ERROR, "tsc2102_control_register_write: " |
| "no such register: 0x%02x\n", reg); |
| } |
| } |
| |
| static void tsc2102_audio_register_write( |
| TSC210xState *s, int reg, uint16_t value) |
| { |
| switch (reg) { |
| case 0x00: /* Audio Control 1 */ |
| s->audio_ctrl1 = value & 0x0f3f; |
| #ifdef TSC_VERBOSE |
| if ((value & ~0x0f3f) || ((value & 7) != ((value >> 3) & 7))) |
| fprintf(stderr, "tsc2102_audio_register_write: " |
| "wrong value written into Audio 1\n"); |
| #endif |
| tsc2102_audio_rate_update(s); |
| tsc2102_audio_output_update(s); |
| return; |
| |
| case 0x01: |
| #ifdef TSC_VERBOSE |
| if (value != 0xff00) |
| fprintf(stderr, "tsc2102_audio_register_write: " |
| "wrong value written into reg 0x01\n"); |
| #endif |
| return; |
| |
| case 0x02: /* DAC Volume Control */ |
| s->volume = value; |
| s->volume_change = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); |
| return; |
| |
| case 0x03: |
| #ifdef TSC_VERBOSE |
| if (value != 0x8b00) |
| fprintf(stderr, "tsc2102_audio_register_write: " |
| "wrong value written into reg 0x03\n"); |
| #endif |
| return; |
| |
| case 0x04: /* Audio Control 2 */ |
| s->audio_ctrl2 = value & 0xf7f2; |
| #ifdef TSC_VERBOSE |
| if (value & ~0xf7fd) |
| fprintf(stderr, "tsc2102_audio_register_write: " |
| "wrong value written into Audio 2\n"); |
| #endif |
| return; |
| |
| case 0x05: /* Stereo DAC Power Control */ |
| if ((value & ~s->dac_power) & (1 << 10)) |
| s->powerdown = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); |
| |
| s->dac_power = value & 0x9543; |
| #ifdef TSC_VERBOSE |
| if ((value & ~0x9543) != 0x2aa0) |
| fprintf(stderr, "tsc2102_audio_register_write: " |
| "wrong value written into Power\n"); |
| #endif |
| tsc2102_audio_rate_update(s); |
| tsc2102_audio_output_update(s); |
| return; |
| |
| case 0x06: /* Audio Control 3 */ |
| s->audio_ctrl3 &= 0x00c0; |
| s->audio_ctrl3 |= value & 0xf800; |
| #ifdef TSC_VERBOSE |
| if (value & ~0xf8c7) |
| fprintf(stderr, "tsc2102_audio_register_write: " |
| "wrong value written into Audio 3\n"); |
| #endif |
| tsc2102_audio_output_update(s); |
| return; |
| |
| case 0x07: /* LCH_BASS_BOOST_N0 */ |
| case 0x08: /* LCH_BASS_BOOST_N1 */ |
| case 0x09: /* LCH_BASS_BOOST_N2 */ |
| case 0x0a: /* LCH_BASS_BOOST_N3 */ |
| case 0x0b: /* LCH_BASS_BOOST_N4 */ |
| case 0x0c: /* LCH_BASS_BOOST_N5 */ |
| case 0x0d: /* LCH_BASS_BOOST_D1 */ |
| case 0x0e: /* LCH_BASS_BOOST_D2 */ |
| case 0x0f: /* LCH_BASS_BOOST_D4 */ |
| case 0x10: /* LCH_BASS_BOOST_D5 */ |
| case 0x11: /* RCH_BASS_BOOST_N0 */ |
| case 0x12: /* RCH_BASS_BOOST_N1 */ |
| case 0x13: /* RCH_BASS_BOOST_N2 */ |
| case 0x14: /* RCH_BASS_BOOST_N3 */ |
| case 0x15: /* RCH_BASS_BOOST_N4 */ |
| case 0x16: /* RCH_BASS_BOOST_N5 */ |
| case 0x17: /* RCH_BASS_BOOST_D1 */ |
| case 0x18: /* RCH_BASS_BOOST_D2 */ |
| case 0x19: /* RCH_BASS_BOOST_D4 */ |
| case 0x1a: /* RCH_BASS_BOOST_D5 */ |
| s->filter_data[reg - 0x07] = value; |
| return; |
| |
| case 0x1b: /* PLL Programmability 1 */ |
| s->pll[0] = value & 0xfffc; |
| #ifdef TSC_VERBOSE |
| if (value & ~0xfffc) |
| fprintf(stderr, "tsc2102_audio_register_write: " |
| "wrong value written into PLL 1\n"); |
| #endif |
| return; |
| |
| case 0x1c: /* PLL Programmability 2 */ |
| s->pll[1] = value & 0xfffc; |
| #ifdef TSC_VERBOSE |
| if (value & ~0xfffc) |
| fprintf(stderr, "tsc2102_audio_register_write: " |
| "wrong value written into PLL 2\n"); |
| #endif |
| return; |
| |
| case 0x1d: /* Audio Control 4 */ |
| s->softstep = !(value & 0x4000); |
| #ifdef TSC_VERBOSE |
| if (value & ~0x4000) |
| fprintf(stderr, "tsc2102_audio_register_write: " |
| "wrong value written into Audio 4\n"); |
| #endif |
| return; |
| |
| default: |
| qemu_log_mask(LOG_GUEST_ERROR, "tsc2102_audio_register_write: " |
| "no such register: 0x%02x\n", reg); |
| } |
| } |
| |
| /* This handles most of the chip logic. */ |
| static void tsc210x_pin_update(TSC210xState *s) |
| { |
| int64_t expires; |
| bool pin_state; |
| |
| switch (s->pin_func) { |
| case 0: |
| pin_state = s->pressure; |
| break; |
| case 1: |
| pin_state = !!s->dav; |
| break; |
| case 2: |
| default: |
| pin_state = s->pressure && !s->dav; |
| } |
| |
| if (!s->enabled) |
| pin_state = false; |
| |
| if (pin_state != s->irq) { |
| s->irq = pin_state; |
| qemu_set_irq(s->pint, !s->irq); |
| } |
| |
| switch (s->nextfunction) { |
| case TSC_MODE_XY_SCAN: |
| case TSC_MODE_XYZ_SCAN: |
| if (!s->pressure) |
| return; |
| break; |
| |
| case TSC_MODE_X: |
| case TSC_MODE_Y: |
| case TSC_MODE_Z: |
| if (!s->pressure) |
| return; |
| /* Fall through */ |
| case TSC_MODE_BAT1: |
| case TSC_MODE_BAT2: |
| case TSC_MODE_AUX: |
| case TSC_MODE_TEMP1: |
| case TSC_MODE_TEMP2: |
| if (s->dav) |
| s->enabled = false; |
| break; |
| |
| case TSC_MODE_AUX_SCAN: |
| case TSC_MODE_PORT_SCAN: |
| break; |
| |
| case TSC_MODE_NO_SCAN: |
| case TSC_MODE_XX_DRV: |
| case TSC_MODE_YY_DRV: |
| case TSC_MODE_YX_DRV: |
| default: |
| return; |
| } |
| |
| if (!s->enabled || s->busy || s->dav) |
| return; |
| |
| s->busy = true; |
| s->precision = s->nextprecision; |
| s->function = s->nextfunction; |
| expires = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + |
| (NANOSECONDS_PER_SECOND >> 10); |
| timer_mod(s->timer, expires); |
| } |
| |
| static uint16_t tsc210x_read(TSC210xState *s) |
| { |
| uint16_t ret = 0x0000; |
| |
| if (!s->command) |
| fprintf(stderr, "tsc210x_read: SPI underrun!\n"); |
| |
| switch (s->page) { |
| case TSC_DATA_REGISTERS_PAGE: |
| ret = tsc2102_data_register_read(s, s->offset); |
| if (!s->dav) |
| qemu_irq_raise(s->davint); |
| break; |
| case TSC_CONTROL_REGISTERS_PAGE: |
| ret = tsc2102_control_register_read(s, s->offset); |
| break; |
| case TSC_AUDIO_REGISTERS_PAGE: |
| ret = tsc2102_audio_register_read(s, s->offset); |
| break; |
| default: |
| hw_error("tsc210x_read: wrong memory page\n"); |
| } |
| |
| tsc210x_pin_update(s); |
| |
| /* Allow sequential reads. */ |
| s->offset ++; |
| s->state = false; |
| return ret; |
| } |
| |
| static void tsc210x_write(TSC210xState *s, uint16_t value) |
| { |
| /* |
| * This is a two-state state machine for reading |
| * command and data every second time. |
| */ |
| if (!s->state) { |
| s->command = (value >> 15) != 0; |
| s->page = (value >> 11) & 0x0f; |
| s->offset = (value >> 5) & 0x3f; |
| s->state = true; |
| } else { |
| if (s->command) |
| fprintf(stderr, "tsc210x_write: SPI overrun!\n"); |
| else |
| switch (s->page) { |
| case TSC_DATA_REGISTERS_PAGE: |
| tsc2102_data_register_write(s, s->offset, value); |
| break; |
| case TSC_CONTROL_REGISTERS_PAGE: |
| tsc2102_control_register_write(s, s->offset, value); |
| break; |
| case TSC_AUDIO_REGISTERS_PAGE: |
| tsc2102_audio_register_write(s, s->offset, value); |
| break; |
| default: |
| hw_error("tsc210x_write: wrong memory page\n"); |
| } |
| |
| tsc210x_pin_update(s); |
| s->state = false; |
| } |
| } |
| |
| uint32_t tsc210x_txrx(void *opaque, uint32_t value, int len) |
| { |
| TSC210xState *s = opaque; |
| uint32_t ret = 0; |
| |
| if (len != 16) { |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "%s: bad SPI word width %i\n", __func__, len); |
| return 0; |
| } |
| |
| /* TODO: sequential reads etc - how do we make sure the host doesn't |
| * unintentionally read out a conversion result from a register while |
| * transmitting the command word of the next command? */ |
| if (!value || (s->state && s->command)) |
| ret = tsc210x_read(s); |
| if (value || (s->state && !s->command)) |
| tsc210x_write(s, value); |
| |
| return ret; |
| } |
| |
| static void tsc210x_timer_tick(void *opaque) |
| { |
| TSC210xState *s = opaque; |
| |
| /* Timer ticked -- a set of conversions has been finished. */ |
| |
| if (!s->busy) |
| return; |
| |
| s->busy = false; |
| s->dav |= mode_regs[s->function]; |
| tsc210x_pin_update(s); |
| qemu_irq_lower(s->davint); |
| } |
| |
| static void tsc210x_touchscreen_event(void *opaque, |
| int x, int y, int z, int buttons_state) |
| { |
| TSC210xState *s = opaque; |
| int p = s->pressure; |
| |
| if (buttons_state) { |
| s->x = x; |
| s->y = y; |
| } |
| s->pressure = !!buttons_state; |
| |
| /* |
| * Note: We would get better responsiveness in the guest by |
| * signaling TS events immediately, but for now we simulate |
| * the first conversion delay for sake of correctness. |
| */ |
| if (p != s->pressure) |
| tsc210x_pin_update(s); |
| } |
| |
| static void tsc210x_i2s_swallow(TSC210xState *s) |
| { |
| if (s->dac_voice[0]) |
| tsc210x_out_flush(s, s->codec.out.len); |
| else |
| s->codec.out.len = 0; |
| } |
| |
| static void tsc210x_i2s_set_rate(TSC210xState *s, int in, int out) |
| { |
| s->i2s_tx_rate = out; |
| s->i2s_rx_rate = in; |
| } |
| |
| static int tsc210x_pre_save(void *opaque) |
| { |
| TSC210xState *s = (TSC210xState *) opaque; |
| s->now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); |
| |
| return 0; |
| } |
| |
| static int tsc210x_post_load(void *opaque, int version_id) |
| { |
| TSC210xState *s = (TSC210xState *) opaque; |
| int64_t now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); |
| |
| if (s->function >= ARRAY_SIZE(mode_regs)) { |
| return -EINVAL; |
| } |
| if (s->nextfunction >= ARRAY_SIZE(mode_regs)) { |
| return -EINVAL; |
| } |
| if (s->precision >= ARRAY_SIZE(resolution)) { |
| return -EINVAL; |
| } |
| if (s->nextprecision >= ARRAY_SIZE(resolution)) { |
| return -EINVAL; |
| } |
| |
| s->volume_change -= s->now; |
| s->volume_change += now; |
| s->powerdown -= s->now; |
| s->powerdown += now; |
| |
| s->busy = timer_pending(s->timer); |
| qemu_set_irq(s->pint, !s->irq); |
| qemu_set_irq(s->davint, !s->dav); |
| |
| return 0; |
| } |
| |
| static VMStateField vmstatefields_tsc210x[] = { |
| VMSTATE_BOOL(enabled, TSC210xState), |
| VMSTATE_BOOL(host_mode, TSC210xState), |
| VMSTATE_BOOL(irq, TSC210xState), |
| VMSTATE_BOOL(command, TSC210xState), |
| VMSTATE_BOOL(pressure, TSC210xState), |
| VMSTATE_BOOL(softstep, TSC210xState), |
| VMSTATE_BOOL(state, TSC210xState), |
| VMSTATE_UINT16(dav, TSC210xState), |
| VMSTATE_INT32(x, TSC210xState), |
| VMSTATE_INT32(y, TSC210xState), |
| VMSTATE_UINT8(offset, TSC210xState), |
| VMSTATE_UINT8(page, TSC210xState), |
| VMSTATE_UINT8(filter, TSC210xState), |
| VMSTATE_UINT8(pin_func, TSC210xState), |
| VMSTATE_UINT8(ref, TSC210xState), |
| VMSTATE_UINT8(timing, TSC210xState), |
| VMSTATE_UINT8(noise, TSC210xState), |
| VMSTATE_UINT8(function, TSC210xState), |
| VMSTATE_UINT8(nextfunction, TSC210xState), |
| VMSTATE_UINT8(precision, TSC210xState), |
| VMSTATE_UINT8(nextprecision, TSC210xState), |
| VMSTATE_UINT16(audio_ctrl1, TSC210xState), |
| VMSTATE_UINT16(audio_ctrl2, TSC210xState), |
| VMSTATE_UINT16(audio_ctrl3, TSC210xState), |
| VMSTATE_UINT16_ARRAY(pll, TSC210xState, 3), |
| VMSTATE_UINT16(volume, TSC210xState), |
| VMSTATE_UINT16(dac_power, TSC210xState), |
| VMSTATE_INT64(volume_change, TSC210xState), |
| VMSTATE_INT64(powerdown, TSC210xState), |
| VMSTATE_INT64(now, TSC210xState), |
| VMSTATE_UINT16_ARRAY(filter_data, TSC210xState, 0x14), |
| VMSTATE_TIMER_PTR(timer, TSC210xState), |
| VMSTATE_END_OF_LIST() |
| }; |
| |
| static const VMStateDescription vmstate_tsc2102 = { |
| .name = "tsc2102", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .pre_save = tsc210x_pre_save, |
| .post_load = tsc210x_post_load, |
| .fields = vmstatefields_tsc210x, |
| }; |
| |
| static const VMStateDescription vmstate_tsc2301 = { |
| .name = "tsc2301", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .pre_save = tsc210x_pre_save, |
| .post_load = tsc210x_post_load, |
| .fields = vmstatefields_tsc210x, |
| }; |
| |
| static void tsc210x_init(TSC210xState *s, |
| const char *name, |
| const VMStateDescription *vmsd) |
| { |
| s->tr[0] = 0; |
| s->tr[1] = 1; |
| s->tr[2] = 1; |
| s->tr[3] = 0; |
| s->tr[4] = 1; |
| s->tr[5] = 0; |
| s->tr[6] = 1; |
| s->tr[7] = 0; |
| |
| s->chip.opaque = s; |
| s->chip.send = (void *) tsc210x_write; |
| s->chip.receive = (void *) tsc210x_read; |
| |
| s->codec.opaque = s; |
| s->codec.tx_swallow = (void *) tsc210x_i2s_swallow; |
| s->codec.set_rate = (void *) tsc210x_i2s_set_rate; |
| s->codec.in.fifo = s->in_fifo; |
| s->codec.out.fifo = s->out_fifo; |
| |
| tsc210x_reset(s); |
| |
| qemu_add_mouse_event_handler(tsc210x_touchscreen_event, s, 1, name); |
| |
| AUD_register_card(s->name, &s->card); |
| |
| qemu_register_reset((void *) tsc210x_reset, s); |
| vmstate_register(NULL, 0, vmsd, s); |
| } |
| |
| uWireSlave *tsc2102_init(qemu_irq pint) |
| { |
| TSC210xState *s; |
| |
| s = g_new0(TSC210xState, 1); |
| s->x = 160; |
| s->y = 160; |
| s->pressure = 0; |
| s->precision = s->nextprecision = 0; |
| s->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, tsc210x_timer_tick, s); |
| s->pint = pint; |
| s->model = 0x2102; |
| s->name = "tsc2102"; |
| |
| tsc210x_init(s, "QEMU TSC2102-driven Touchscreen", &vmstate_tsc2102); |
| |
| return &s->chip; |
| } |
| |
| uWireSlave *tsc2301_init(qemu_irq penirq, qemu_irq kbirq, qemu_irq dav) |
| { |
| TSC210xState *s; |
| |
| s = g_new0(TSC210xState, 1); |
| s->x = 400; |
| s->y = 240; |
| s->pressure = 0; |
| s->precision = s->nextprecision = 0; |
| s->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, tsc210x_timer_tick, s); |
| s->pint = penirq; |
| s->kbint = kbirq; |
| s->davint = dav; |
| s->model = 0x2301; |
| s->name = "tsc2301"; |
| |
| tsc210x_init(s, "QEMU TSC2301-driven Touchscreen", &vmstate_tsc2301); |
| |
| return &s->chip; |
| } |
| |
| I2SCodec *tsc210x_codec(uWireSlave *chip) |
| { |
| TSC210xState *s = (TSC210xState *) chip->opaque; |
| |
| return &s->codec; |
| } |
| |
| /* |
| * Use tslib generated calibration data to generate ADC input values |
| * from the touchscreen. Assuming 12-bit precision was used during |
| * tslib calibration. |
| */ |
| void tsc210x_set_transform(uWireSlave *chip, const MouseTransformInfo *info) |
| { |
| TSC210xState *s = (TSC210xState *) chip->opaque; |
| #if 0 |
| int64_t ltr[8]; |
| |
| ltr[0] = (int64_t) info->a[1] * info->y; |
| ltr[1] = (int64_t) info->a[4] * info->x; |
| ltr[2] = (int64_t) info->a[1] * info->a[3] - |
| (int64_t) info->a[4] * info->a[0]; |
| ltr[3] = (int64_t) info->a[2] * info->a[4] - |
| (int64_t) info->a[5] * info->a[1]; |
| ltr[4] = (int64_t) info->a[0] * info->y; |
| ltr[5] = (int64_t) info->a[3] * info->x; |
| ltr[6] = (int64_t) info->a[4] * info->a[0] - |
| (int64_t) info->a[1] * info->a[3]; |
| ltr[7] = (int64_t) info->a[2] * info->a[3] - |
| (int64_t) info->a[5] * info->a[0]; |
| |
| /* Avoid integer overflow */ |
| s->tr[0] = ltr[0] >> 11; |
| s->tr[1] = ltr[1] >> 11; |
| s->tr[2] = muldiv64(ltr[2], 1, info->a[6]); |
| s->tr[3] = muldiv64(ltr[3], 1 << 4, ltr[2]); |
| s->tr[4] = ltr[4] >> 11; |
| s->tr[5] = ltr[5] >> 11; |
| s->tr[6] = muldiv64(ltr[6], 1, info->a[6]); |
| s->tr[7] = muldiv64(ltr[7], 1 << 4, ltr[6]); |
| #else |
| |
| /* This version assumes touchscreen X & Y axis are parallel or |
| * perpendicular to LCD's X & Y axis in some way. */ |
| if (abs(info->a[0]) > abs(info->a[1])) { |
| s->tr[0] = 0; |
| s->tr[1] = -info->a[6] * info->x; |
| s->tr[2] = info->a[0]; |
| s->tr[3] = -info->a[2] / info->a[0]; |
| s->tr[4] = info->a[6] * info->y; |
| s->tr[5] = 0; |
| s->tr[6] = info->a[4]; |
| s->tr[7] = -info->a[5] / info->a[4]; |
| } else { |
| s->tr[0] = info->a[6] * info->y; |
| s->tr[1] = 0; |
| s->tr[2] = info->a[1]; |
| s->tr[3] = -info->a[2] / info->a[1]; |
| s->tr[4] = 0; |
| s->tr[5] = -info->a[6] * info->x; |
| s->tr[6] = info->a[3]; |
| s->tr[7] = -info->a[5] / info->a[3]; |
| } |
| |
| s->tr[0] >>= 11; |
| s->tr[1] >>= 11; |
| s->tr[3] <<= 4; |
| s->tr[4] >>= 11; |
| s->tr[5] >>= 11; |
| s->tr[7] <<= 4; |
| #endif |
| } |
| |
| void tsc210x_key_event(uWireSlave *chip, int key, int down) |
| { |
| TSC210xState *s = (TSC210xState *) chip->opaque; |
| |
| if (down) |
| s->kb.down |= 1 << key; |
| else |
| s->kb.down &= ~(1 << key); |
| |
| if (down && (s->kb.down & ~s->kb.mask) && !s->kb.intr) { |
| s->kb.intr = 1; |
| qemu_irq_lower(s->kbint); |
| } else if (s->kb.intr && !(s->kb.down & ~s->kb.mask) && |
| !(s->kb.mode & 1)) { |
| s->kb.intr = 0; |
| qemu_irq_raise(s->kbint); |
| } |
| } |
