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/*
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* TI TSC2102 (touchscreen/sensors/audio controller) emulator.
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* TI TSC2301 (touchscreen/sensors/keypad).
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*
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* Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org>
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* Copyright (C) 2008 Nokia Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 or
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* (at your option) version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "hw.h" |
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#include "audio/audio.h" |
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#include "qemu-timer.h" |
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#include "console.h" |
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#include "omap.h" /* For I2SCodec and uWireSlave */ |
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#include "devices.h" |
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|
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#define TSC_DATA_REGISTERS_PAGE 0x0 |
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#define TSC_CONTROL_REGISTERS_PAGE 0x1 |
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#define TSC_AUDIO_REGISTERS_PAGE 0x2 |
32 |
|
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#define TSC_VERBOSE
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|
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#define TSC_CUT_RESOLUTION(value, p) ((value) >> (16 - resolution[p])) |
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|
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typedef struct { |
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qemu_irq pint; |
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qemu_irq kbint; |
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qemu_irq davint; |
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QEMUTimer *timer; |
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QEMUSoundCard card; |
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uWireSlave chip; |
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I2SCodec codec; |
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uint8_t in_fifo[16384];
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uint8_t out_fifo[16384];
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uint16_t model; |
48 |
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int x, y;
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int pressure;
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|
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int state, page, offset, irq;
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uint16_t command, dav; |
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|
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int busy;
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int enabled;
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int host_mode;
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int function;
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int nextfunction;
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int precision;
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int nextprecision;
|
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int filter;
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int pin_func;
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int ref;
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int timing;
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int noise;
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|
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uint16_t audio_ctrl1; |
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uint16_t audio_ctrl2; |
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uint16_t audio_ctrl3; |
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uint16_t pll[3];
|
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uint16_t volume; |
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int64_t volume_change; |
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int softstep;
|
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uint16_t dac_power; |
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int64_t powerdown; |
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uint16_t filter_data[0x14];
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|
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const char *name; |
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SWVoiceIn *adc_voice[1];
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SWVoiceOut *dac_voice[1];
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int i2s_rx_rate;
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int i2s_tx_rate;
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|
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int tr[8]; |
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|
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struct {
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uint16_t down; |
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uint16_t mask; |
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int scan;
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int debounce;
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int mode;
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int intr;
|
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} kb; |
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} TSC210xState; |
96 |
|
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static const int resolution[4] = { 12, 8, 10, 12 }; |
98 |
|
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#define TSC_MODE_NO_SCAN 0x0 |
100 |
#define TSC_MODE_XY_SCAN 0x1 |
101 |
#define TSC_MODE_XYZ_SCAN 0x2 |
102 |
#define TSC_MODE_X 0x3 |
103 |
#define TSC_MODE_Y 0x4 |
104 |
#define TSC_MODE_Z 0x5 |
105 |
#define TSC_MODE_BAT1 0x6 |
106 |
#define TSC_MODE_BAT2 0x7 |
107 |
#define TSC_MODE_AUX 0x8 |
108 |
#define TSC_MODE_AUX_SCAN 0x9 |
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#define TSC_MODE_TEMP1 0xa |
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#define TSC_MODE_PORT_SCAN 0xb |
111 |
#define TSC_MODE_TEMP2 0xc |
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#define TSC_MODE_XX_DRV 0xd |
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#define TSC_MODE_YY_DRV 0xe |
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#define TSC_MODE_YX_DRV 0xf |
115 |
|
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static const uint16_t mode_regs[16] = { |
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0x0000, /* No scan */ |
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0x0600, /* X, Y scan */ |
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0x0780, /* X, Y, Z scan */ |
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0x0400, /* X */ |
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0x0200, /* Y */ |
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0x0180, /* Z */ |
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0x0040, /* BAT1 */ |
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0x0030, /* BAT2 */ |
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0x0010, /* AUX */ |
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0x0010, /* AUX scan */ |
127 |
0x0004, /* TEMP1 */ |
128 |
0x0070, /* Port scan */ |
129 |
0x0002, /* TEMP2 */ |
130 |
0x0000, /* X+, X- drivers */ |
131 |
0x0000, /* Y+, Y- drivers */ |
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0x0000, /* Y+, X- drivers */ |
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}; |
134 |
|
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#define X_TRANSFORM(s) \
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((s->y * s->tr[0] - s->x * s->tr[1]) / s->tr[2] + s->tr[3]) |
137 |
#define Y_TRANSFORM(s) \
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((s->y * s->tr[4] - s->x * s->tr[5]) / s->tr[6] + s->tr[7]) |
139 |
#define Z1_TRANSFORM(s) \
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((400 - ((s)->x >> 7) + ((s)->pressure << 10)) << 4) |
141 |
#define Z2_TRANSFORM(s) \
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((4000 + ((s)->y >> 7) - ((s)->pressure << 10)) << 4) |
143 |
|
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#define BAT1_VAL 0x8660 |
145 |
#define BAT2_VAL 0x0000 |
146 |
#define AUX1_VAL 0x35c0 |
147 |
#define AUX2_VAL 0xffff |
148 |
#define TEMP1_VAL 0x8c70 |
149 |
#define TEMP2_VAL 0xa5b0 |
150 |
|
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#define TSC_POWEROFF_DELAY 50 |
152 |
#define TSC_SOFTSTEP_DELAY 50 |
153 |
|
154 |
static void tsc210x_reset(TSC210xState *s) |
155 |
{ |
156 |
s->state = 0;
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s->pin_func = 2;
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s->enabled = 0;
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s->busy = 0;
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s->nextfunction = 0;
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s->ref = 0;
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s->timing = 0;
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s->irq = 0;
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s->dav = 0;
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s->audio_ctrl1 = 0x0000;
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s->audio_ctrl2 = 0x4410;
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s->audio_ctrl3 = 0x0000;
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s->pll[0] = 0x1004; |
170 |
s->pll[1] = 0x0000; |
171 |
s->pll[2] = 0x1fff; |
172 |
s->volume = 0xffff;
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s->dac_power = 0x8540;
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s->softstep = 1;
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s->volume_change = 0;
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s->powerdown = 0;
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s->filter_data[0x00] = 0x6be3; |
178 |
s->filter_data[0x01] = 0x9666; |
179 |
s->filter_data[0x02] = 0x675d; |
180 |
s->filter_data[0x03] = 0x6be3; |
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s->filter_data[0x04] = 0x9666; |
182 |
s->filter_data[0x05] = 0x675d; |
183 |
s->filter_data[0x06] = 0x7d83; |
184 |
s->filter_data[0x07] = 0x84ee; |
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s->filter_data[0x08] = 0x7d83; |
186 |
s->filter_data[0x09] = 0x84ee; |
187 |
s->filter_data[0x0a] = 0x6be3; |
188 |
s->filter_data[0x0b] = 0x9666; |
189 |
s->filter_data[0x0c] = 0x675d; |
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s->filter_data[0x0d] = 0x6be3; |
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s->filter_data[0x0e] = 0x9666; |
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s->filter_data[0x0f] = 0x675d; |
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s->filter_data[0x10] = 0x7d83; |
194 |
s->filter_data[0x11] = 0x84ee; |
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s->filter_data[0x12] = 0x7d83; |
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s->filter_data[0x13] = 0x84ee; |
197 |
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s->i2s_tx_rate = 0;
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s->i2s_rx_rate = 0;
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s->kb.scan = 1;
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s->kb.debounce = 0;
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s->kb.mask = 0x0000;
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s->kb.mode = 3;
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s->kb.intr = 0;
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qemu_set_irq(s->pint, !s->irq); |
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qemu_set_irq(s->davint, !s->dav); |
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qemu_irq_raise(s->kbint); |
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} |
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typedef struct { |
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int rate;
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int dsor;
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int fsref;
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} TSC210xRateInfo; |
217 |
|
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/* { rate, dsor, fsref } */
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static const TSC210xRateInfo tsc2101_rates[] = { |
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/* Fsref / 6.0 */
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{ 7350, 7, 1 }, |
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{ 8000, 7, 0 }, |
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/* Fsref / 5.5 */
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{ 8018, 6, 1 }, |
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{ 8727, 6, 0 }, |
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/* Fsref / 5.0 */
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{ 8820, 5, 1 }, |
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{ 9600, 5, 0 }, |
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/* Fsref / 4.0 */
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{ 11025, 4, 1 }, |
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{ 12000, 4, 0 }, |
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/* Fsref / 3.0 */
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{ 14700, 3, 1 }, |
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{ 16000, 3, 0 }, |
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/* Fsref / 2.0 */
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{ 22050, 2, 1 }, |
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{ 24000, 2, 0 }, |
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/* Fsref / 1.5 */
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{ 29400, 1, 1 }, |
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{ 32000, 1, 0 }, |
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/* Fsref */
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{ 44100, 0, 1 }, |
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{ 48000, 0, 0 }, |
244 |
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{ 0, 0, 0 }, |
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}; |
247 |
|
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/* { rate, dsor, fsref } */
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static const TSC210xRateInfo tsc2102_rates[] = { |
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/* Fsref / 6.0 */
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{ 7350, 63, 1 }, |
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{ 8000, 63, 0 }, |
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/* Fsref / 6.0 */
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{ 7350, 54, 1 }, |
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{ 8000, 54, 0 }, |
256 |
/* Fsref / 5.0 */
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{ 8820, 45, 1 }, |
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{ 9600, 45, 0 }, |
259 |
/* Fsref / 4.0 */
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{ 11025, 36, 1 }, |
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{ 12000, 36, 0 }, |
262 |
/* Fsref / 3.0 */
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{ 14700, 27, 1 }, |
264 |
{ 16000, 27, 0 }, |
265 |
/* Fsref / 2.0 */
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{ 22050, 18, 1 }, |
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{ 24000, 18, 0 }, |
268 |
/* Fsref / 1.5 */
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{ 29400, 9, 1 }, |
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{ 32000, 9, 0 }, |
271 |
/* Fsref */
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{ 44100, 0, 1 }, |
273 |
{ 48000, 0, 0 }, |
274 |
|
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{ 0, 0, 0 }, |
276 |
}; |
277 |
|
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static inline void tsc210x_out_flush(TSC210xState *s, int len) |
279 |
{ |
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uint8_t *data = s->codec.out.fifo + s->codec.out.start; |
281 |
uint8_t *end = data + len; |
282 |
|
283 |
while (data < end)
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data += AUD_write(s->dac_voice[0], data, end - data) ?: (end - data);
|
285 |
|
286 |
s->codec.out.len -= len; |
287 |
if (s->codec.out.len)
|
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memmove(s->codec.out.fifo, end, s->codec.out.len); |
289 |
s->codec.out.start = 0;
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290 |
} |
291 |
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292 |
static void tsc210x_audio_out_cb(TSC210xState *s, int free_b) |
293 |
{ |
294 |
if (s->codec.out.len >= free_b) {
|
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tsc210x_out_flush(s, free_b); |
296 |
return;
|
297 |
} |
298 |
|
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s->codec.out.size = MIN(free_b, 16384);
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qemu_irq_raise(s->codec.tx_start); |
301 |
} |
302 |
|
303 |
static void tsc2102_audio_rate_update(TSC210xState *s) |
304 |
{ |
305 |
const TSC210xRateInfo *rate;
|
306 |
|
307 |
s->codec.tx_rate = 0;
|
308 |
s->codec.rx_rate = 0;
|
309 |
if (s->dac_power & (1 << 15)) /* PWDNC */ |
310 |
return;
|
311 |
|
312 |
for (rate = tsc2102_rates; rate->rate; rate ++)
|
313 |
if (rate->dsor == (s->audio_ctrl1 & 0x3f) && /* DACFS */ |
314 |
rate->fsref == ((s->audio_ctrl3 >> 13) & 1))/* REFFS */ |
315 |
break;
|
316 |
if (!rate->rate) {
|
317 |
printf("%s: unknown sampling rate configured\n", __FUNCTION__);
|
318 |
return;
|
319 |
} |
320 |
|
321 |
s->codec.tx_rate = rate->rate; |
322 |
} |
323 |
|
324 |
static void tsc2102_audio_output_update(TSC210xState *s) |
325 |
{ |
326 |
int enable;
|
327 |
struct audsettings fmt;
|
328 |
|
329 |
if (s->dac_voice[0]) { |
330 |
tsc210x_out_flush(s, s->codec.out.len); |
331 |
s->codec.out.size = 0;
|
332 |
AUD_set_active_out(s->dac_voice[0], 0); |
333 |
AUD_close_out(&s->card, s->dac_voice[0]);
|
334 |
s->dac_voice[0] = NULL; |
335 |
} |
336 |
s->codec.cts = 0;
|
337 |
|
338 |
enable = |
339 |
(~s->dac_power & (1 << 15)) && /* PWDNC */ |
340 |
(~s->dac_power & (1 << 10)); /* DAPWDN */ |
341 |
if (!enable || !s->codec.tx_rate)
|
342 |
return;
|
343 |
|
344 |
/* Force our own sampling rate even in slave DAC mode */
|
345 |
fmt.endianness = 0;
|
346 |
fmt.nchannels = 2;
|
347 |
fmt.freq = s->codec.tx_rate; |
348 |
fmt.fmt = AUD_FMT_S16; |
349 |
|
350 |
s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0], |
351 |
"tsc2102.sink", s, (void *) tsc210x_audio_out_cb, &fmt); |
352 |
if (s->dac_voice[0]) { |
353 |
s->codec.cts = 1;
|
354 |
AUD_set_active_out(s->dac_voice[0], 1); |
355 |
} |
356 |
} |
357 |
|
358 |
static uint16_t tsc2102_data_register_read(TSC210xState *s, int reg) |
359 |
{ |
360 |
switch (reg) {
|
361 |
case 0x00: /* X */ |
362 |
s->dav &= 0xfbff;
|
363 |
return TSC_CUT_RESOLUTION(X_TRANSFORM(s), s->precision) +
|
364 |
(s->noise & 3);
|
365 |
|
366 |
case 0x01: /* Y */ |
367 |
s->noise ++; |
368 |
s->dav &= 0xfdff;
|
369 |
return TSC_CUT_RESOLUTION(Y_TRANSFORM(s), s->precision) ^
|
370 |
(s->noise & 3);
|
371 |
|
372 |
case 0x02: /* Z1 */ |
373 |
s->dav &= 0xfeff;
|
374 |
return TSC_CUT_RESOLUTION(Z1_TRANSFORM(s), s->precision) -
|
375 |
(s->noise & 3);
|
376 |
|
377 |
case 0x03: /* Z2 */ |
378 |
s->dav &= 0xff7f;
|
379 |
return TSC_CUT_RESOLUTION(Z2_TRANSFORM(s), s->precision) |
|
380 |
(s->noise & 3);
|
381 |
|
382 |
case 0x04: /* KPData */ |
383 |
if ((s->model & 0xff00) == 0x2300) { |
384 |
if (s->kb.intr && (s->kb.mode & 2)) { |
385 |
s->kb.intr = 0;
|
386 |
qemu_irq_raise(s->kbint); |
387 |
} |
388 |
return s->kb.down;
|
389 |
} |
390 |
|
391 |
return 0xffff; |
392 |
|
393 |
case 0x05: /* BAT1 */ |
394 |
s->dav &= 0xffbf;
|
395 |
return TSC_CUT_RESOLUTION(BAT1_VAL, s->precision) +
|
396 |
(s->noise & 6);
|
397 |
|
398 |
case 0x06: /* BAT2 */ |
399 |
s->dav &= 0xffdf;
|
400 |
return TSC_CUT_RESOLUTION(BAT2_VAL, s->precision);
|
401 |
|
402 |
case 0x07: /* AUX1 */ |
403 |
s->dav &= 0xffef;
|
404 |
return TSC_CUT_RESOLUTION(AUX1_VAL, s->precision);
|
405 |
|
406 |
case 0x08: /* AUX2 */ |
407 |
s->dav &= 0xfff7;
|
408 |
return 0xffff; |
409 |
|
410 |
case 0x09: /* TEMP1 */ |
411 |
s->dav &= 0xfffb;
|
412 |
return TSC_CUT_RESOLUTION(TEMP1_VAL, s->precision) -
|
413 |
(s->noise & 5);
|
414 |
|
415 |
case 0x0a: /* TEMP2 */ |
416 |
s->dav &= 0xfffd;
|
417 |
return TSC_CUT_RESOLUTION(TEMP2_VAL, s->precision) ^
|
418 |
(s->noise & 3);
|
419 |
|
420 |
case 0x0b: /* DAC */ |
421 |
s->dav &= 0xfffe;
|
422 |
return 0xffff; |
423 |
|
424 |
default:
|
425 |
#ifdef TSC_VERBOSE
|
426 |
fprintf(stderr, "tsc2102_data_register_read: "
|
427 |
"no such register: 0x%02x\n", reg);
|
428 |
#endif
|
429 |
return 0xffff; |
430 |
} |
431 |
} |
432 |
|
433 |
static uint16_t tsc2102_control_register_read(
|
434 |
TSC210xState *s, int reg)
|
435 |
{ |
436 |
switch (reg) {
|
437 |
case 0x00: /* TSC ADC */ |
438 |
return (s->pressure << 15) | ((!s->busy) << 14) | |
439 |
(s->nextfunction << 10) | (s->nextprecision << 8) | s->filter; |
440 |
|
441 |
case 0x01: /* Status / Keypad Control */ |
442 |
if ((s->model & 0xff00) == 0x2100) |
443 |
return (s->pin_func << 14) | ((!s->enabled) << 13) | |
444 |
(s->host_mode << 12) | ((!!s->dav) << 11) | s->dav; |
445 |
else
|
446 |
return (s->kb.intr << 15) | ((s->kb.scan || !s->kb.down) << 14) | |
447 |
(s->kb.debounce << 11);
|
448 |
|
449 |
case 0x02: /* DAC Control */ |
450 |
if ((s->model & 0xff00) == 0x2300) |
451 |
return s->dac_power & 0x8000; |
452 |
else
|
453 |
goto bad_reg;
|
454 |
|
455 |
case 0x03: /* Reference */ |
456 |
return s->ref;
|
457 |
|
458 |
case 0x04: /* Reset */ |
459 |
return 0xffff; |
460 |
|
461 |
case 0x05: /* Configuration */ |
462 |
return s->timing;
|
463 |
|
464 |
case 0x06: /* Secondary configuration */ |
465 |
if ((s->model & 0xff00) == 0x2100) |
466 |
goto bad_reg;
|
467 |
return ((!s->dav) << 15) | ((s->kb.mode & 1) << 14) | s->pll[2]; |
468 |
|
469 |
case 0x10: /* Keypad Mask */ |
470 |
if ((s->model & 0xff00) == 0x2100) |
471 |
goto bad_reg;
|
472 |
return s->kb.mask;
|
473 |
|
474 |
default:
|
475 |
bad_reg:
|
476 |
#ifdef TSC_VERBOSE
|
477 |
fprintf(stderr, "tsc2102_control_register_read: "
|
478 |
"no such register: 0x%02x\n", reg);
|
479 |
#endif
|
480 |
return 0xffff; |
481 |
} |
482 |
} |
483 |
|
484 |
static uint16_t tsc2102_audio_register_read(TSC210xState *s, int reg) |
485 |
{ |
486 |
int l_ch, r_ch;
|
487 |
uint16_t val; |
488 |
|
489 |
switch (reg) {
|
490 |
case 0x00: /* Audio Control 1 */ |
491 |
return s->audio_ctrl1;
|
492 |
|
493 |
case 0x01: |
494 |
return 0xff00; |
495 |
|
496 |
case 0x02: /* DAC Volume Control */ |
497 |
return s->volume;
|
498 |
|
499 |
case 0x03: |
500 |
return 0x8b00; |
501 |
|
502 |
case 0x04: /* Audio Control 2 */ |
503 |
l_ch = 1;
|
504 |
r_ch = 1;
|
505 |
if (s->softstep && !(s->dac_power & (1 << 10))) { |
506 |
l_ch = (qemu_get_clock_ns(vm_clock) > |
507 |
s->volume_change + TSC_SOFTSTEP_DELAY); |
508 |
r_ch = (qemu_get_clock_ns(vm_clock) > |
509 |
s->volume_change + TSC_SOFTSTEP_DELAY); |
510 |
} |
511 |
|
512 |
return s->audio_ctrl2 | (l_ch << 3) | (r_ch << 2); |
513 |
|
514 |
case 0x05: /* Stereo DAC Power Control */ |
515 |
return 0x2aa0 | s->dac_power | |
516 |
(((s->dac_power & (1 << 10)) && |
517 |
(qemu_get_clock_ns(vm_clock) > |
518 |
s->powerdown + TSC_POWEROFF_DELAY)) << 6);
|
519 |
|
520 |
case 0x06: /* Audio Control 3 */ |
521 |
val = s->audio_ctrl3 | 0x0001;
|
522 |
s->audio_ctrl3 &= 0xff3f;
|
523 |
return val;
|
524 |
|
525 |
case 0x07: /* LCH_BASS_BOOST_N0 */ |
526 |
case 0x08: /* LCH_BASS_BOOST_N1 */ |
527 |
case 0x09: /* LCH_BASS_BOOST_N2 */ |
528 |
case 0x0a: /* LCH_BASS_BOOST_N3 */ |
529 |
case 0x0b: /* LCH_BASS_BOOST_N4 */ |
530 |
case 0x0c: /* LCH_BASS_BOOST_N5 */ |
531 |
case 0x0d: /* LCH_BASS_BOOST_D1 */ |
532 |
case 0x0e: /* LCH_BASS_BOOST_D2 */ |
533 |
case 0x0f: /* LCH_BASS_BOOST_D4 */ |
534 |
case 0x10: /* LCH_BASS_BOOST_D5 */ |
535 |
case 0x11: /* RCH_BASS_BOOST_N0 */ |
536 |
case 0x12: /* RCH_BASS_BOOST_N1 */ |
537 |
case 0x13: /* RCH_BASS_BOOST_N2 */ |
538 |
case 0x14: /* RCH_BASS_BOOST_N3 */ |
539 |
case 0x15: /* RCH_BASS_BOOST_N4 */ |
540 |
case 0x16: /* RCH_BASS_BOOST_N5 */ |
541 |
case 0x17: /* RCH_BASS_BOOST_D1 */ |
542 |
case 0x18: /* RCH_BASS_BOOST_D2 */ |
543 |
case 0x19: /* RCH_BASS_BOOST_D4 */ |
544 |
case 0x1a: /* RCH_BASS_BOOST_D5 */ |
545 |
return s->filter_data[reg - 0x07]; |
546 |
|
547 |
case 0x1b: /* PLL Programmability 1 */ |
548 |
return s->pll[0]; |
549 |
|
550 |
case 0x1c: /* PLL Programmability 2 */ |
551 |
return s->pll[1]; |
552 |
|
553 |
case 0x1d: /* Audio Control 4 */ |
554 |
return (!s->softstep) << 14; |
555 |
|
556 |
default:
|
557 |
#ifdef TSC_VERBOSE
|
558 |
fprintf(stderr, "tsc2102_audio_register_read: "
|
559 |
"no such register: 0x%02x\n", reg);
|
560 |
#endif
|
561 |
return 0xffff; |
562 |
} |
563 |
} |
564 |
|
565 |
static void tsc2102_data_register_write( |
566 |
TSC210xState *s, int reg, uint16_t value)
|
567 |
{ |
568 |
switch (reg) {
|
569 |
case 0x00: /* X */ |
570 |
case 0x01: /* Y */ |
571 |
case 0x02: /* Z1 */ |
572 |
case 0x03: /* Z2 */ |
573 |
case 0x05: /* BAT1 */ |
574 |
case 0x06: /* BAT2 */ |
575 |
case 0x07: /* AUX1 */ |
576 |
case 0x08: /* AUX2 */ |
577 |
case 0x09: /* TEMP1 */ |
578 |
case 0x0a: /* TEMP2 */ |
579 |
return;
|
580 |
|
581 |
default:
|
582 |
#ifdef TSC_VERBOSE
|
583 |
fprintf(stderr, "tsc2102_data_register_write: "
|
584 |
"no such register: 0x%02x\n", reg);
|
585 |
#endif
|
586 |
} |
587 |
} |
588 |
|
589 |
static void tsc2102_control_register_write( |
590 |
TSC210xState *s, int reg, uint16_t value)
|
591 |
{ |
592 |
switch (reg) {
|
593 |
case 0x00: /* TSC ADC */ |
594 |
s->host_mode = value >> 15;
|
595 |
s->enabled = !(value & 0x4000);
|
596 |
if (s->busy && !s->enabled)
|
597 |
qemu_del_timer(s->timer); |
598 |
s->busy &= s->enabled; |
599 |
s->nextfunction = (value >> 10) & 0xf; |
600 |
s->nextprecision = (value >> 8) & 3; |
601 |
s->filter = value & 0xff;
|
602 |
return;
|
603 |
|
604 |
case 0x01: /* Status / Keypad Control */ |
605 |
if ((s->model & 0xff00) == 0x2100) |
606 |
s->pin_func = value >> 14;
|
607 |
else {
|
608 |
s->kb.scan = (value >> 14) & 1; |
609 |
s->kb.debounce = (value >> 11) & 7; |
610 |
if (s->kb.intr && s->kb.scan) {
|
611 |
s->kb.intr = 0;
|
612 |
qemu_irq_raise(s->kbint); |
613 |
} |
614 |
} |
615 |
return;
|
616 |
|
617 |
case 0x02: /* DAC Control */ |
618 |
if ((s->model & 0xff00) == 0x2300) { |
619 |
s->dac_power &= 0x7fff;
|
620 |
s->dac_power |= 0x8000 & value;
|
621 |
} else
|
622 |
goto bad_reg;
|
623 |
break;
|
624 |
|
625 |
case 0x03: /* Reference */ |
626 |
s->ref = value & 0x1f;
|
627 |
return;
|
628 |
|
629 |
case 0x04: /* Reset */ |
630 |
if (value == 0xbb00) { |
631 |
if (s->busy)
|
632 |
qemu_del_timer(s->timer); |
633 |
tsc210x_reset(s); |
634 |
#ifdef TSC_VERBOSE
|
635 |
} else {
|
636 |
fprintf(stderr, "tsc2102_control_register_write: "
|
637 |
"wrong value written into RESET\n");
|
638 |
#endif
|
639 |
} |
640 |
return;
|
641 |
|
642 |
case 0x05: /* Configuration */ |
643 |
s->timing = value & 0x3f;
|
644 |
#ifdef TSC_VERBOSE
|
645 |
if (value & ~0x3f) |
646 |
fprintf(stderr, "tsc2102_control_register_write: "
|
647 |
"wrong value written into CONFIG\n");
|
648 |
#endif
|
649 |
return;
|
650 |
|
651 |
case 0x06: /* Secondary configuration */ |
652 |
if ((s->model & 0xff00) == 0x2100) |
653 |
goto bad_reg;
|
654 |
s->kb.mode = value >> 14;
|
655 |
s->pll[2] = value & 0x3ffff; |
656 |
return;
|
657 |
|
658 |
case 0x10: /* Keypad Mask */ |
659 |
if ((s->model & 0xff00) == 0x2100) |
660 |
goto bad_reg;
|
661 |
s->kb.mask = value; |
662 |
return;
|
663 |
|
664 |
default:
|
665 |
bad_reg:
|
666 |
#ifdef TSC_VERBOSE
|
667 |
fprintf(stderr, "tsc2102_control_register_write: "
|
668 |
"no such register: 0x%02x\n", reg);
|
669 |
#endif
|
670 |
} |
671 |
} |
672 |
|
673 |
static void tsc2102_audio_register_write( |
674 |
TSC210xState *s, int reg, uint16_t value)
|
675 |
{ |
676 |
switch (reg) {
|
677 |
case 0x00: /* Audio Control 1 */ |
678 |
s->audio_ctrl1 = value & 0x0f3f;
|
679 |
#ifdef TSC_VERBOSE
|
680 |
if ((value & ~0x0f3f) || ((value & 7) != ((value >> 3) & 7))) |
681 |
fprintf(stderr, "tsc2102_audio_register_write: "
|
682 |
"wrong value written into Audio 1\n");
|
683 |
#endif
|
684 |
tsc2102_audio_rate_update(s); |
685 |
tsc2102_audio_output_update(s); |
686 |
return;
|
687 |
|
688 |
case 0x01: |
689 |
#ifdef TSC_VERBOSE
|
690 |
if (value != 0xff00) |
691 |
fprintf(stderr, "tsc2102_audio_register_write: "
|
692 |
"wrong value written into reg 0x01\n");
|
693 |
#endif
|
694 |
return;
|
695 |
|
696 |
case 0x02: /* DAC Volume Control */ |
697 |
s->volume = value; |
698 |
s->volume_change = qemu_get_clock_ns(vm_clock); |
699 |
return;
|
700 |
|
701 |
case 0x03: |
702 |
#ifdef TSC_VERBOSE
|
703 |
if (value != 0x8b00) |
704 |
fprintf(stderr, "tsc2102_audio_register_write: "
|
705 |
"wrong value written into reg 0x03\n");
|
706 |
#endif
|
707 |
return;
|
708 |
|
709 |
case 0x04: /* Audio Control 2 */ |
710 |
s->audio_ctrl2 = value & 0xf7f2;
|
711 |
#ifdef TSC_VERBOSE
|
712 |
if (value & ~0xf7fd) |
713 |
fprintf(stderr, "tsc2102_audio_register_write: "
|
714 |
"wrong value written into Audio 2\n");
|
715 |
#endif
|
716 |
return;
|
717 |
|
718 |
case 0x05: /* Stereo DAC Power Control */ |
719 |
if ((value & ~s->dac_power) & (1 << 10)) |
720 |
s->powerdown = qemu_get_clock_ns(vm_clock); |
721 |
|
722 |
s->dac_power = value & 0x9543;
|
723 |
#ifdef TSC_VERBOSE
|
724 |
if ((value & ~0x9543) != 0x2aa0) |
725 |
fprintf(stderr, "tsc2102_audio_register_write: "
|
726 |
"wrong value written into Power\n");
|
727 |
#endif
|
728 |
tsc2102_audio_rate_update(s); |
729 |
tsc2102_audio_output_update(s); |
730 |
return;
|
731 |
|
732 |
case 0x06: /* Audio Control 3 */ |
733 |
s->audio_ctrl3 &= 0x00c0;
|
734 |
s->audio_ctrl3 |= value & 0xf800;
|
735 |
#ifdef TSC_VERBOSE
|
736 |
if (value & ~0xf8c7) |
737 |
fprintf(stderr, "tsc2102_audio_register_write: "
|
738 |
"wrong value written into Audio 3\n");
|
739 |
#endif
|
740 |
tsc2102_audio_output_update(s); |
741 |
return;
|
742 |
|
743 |
case 0x07: /* LCH_BASS_BOOST_N0 */ |
744 |
case 0x08: /* LCH_BASS_BOOST_N1 */ |
745 |
case 0x09: /* LCH_BASS_BOOST_N2 */ |
746 |
case 0x0a: /* LCH_BASS_BOOST_N3 */ |
747 |
case 0x0b: /* LCH_BASS_BOOST_N4 */ |
748 |
case 0x0c: /* LCH_BASS_BOOST_N5 */ |
749 |
case 0x0d: /* LCH_BASS_BOOST_D1 */ |
750 |
case 0x0e: /* LCH_BASS_BOOST_D2 */ |
751 |
case 0x0f: /* LCH_BASS_BOOST_D4 */ |
752 |
case 0x10: /* LCH_BASS_BOOST_D5 */ |
753 |
case 0x11: /* RCH_BASS_BOOST_N0 */ |
754 |
case 0x12: /* RCH_BASS_BOOST_N1 */ |
755 |
case 0x13: /* RCH_BASS_BOOST_N2 */ |
756 |
case 0x14: /* RCH_BASS_BOOST_N3 */ |
757 |
case 0x15: /* RCH_BASS_BOOST_N4 */ |
758 |
case 0x16: /* RCH_BASS_BOOST_N5 */ |
759 |
case 0x17: /* RCH_BASS_BOOST_D1 */ |
760 |
case 0x18: /* RCH_BASS_BOOST_D2 */ |
761 |
case 0x19: /* RCH_BASS_BOOST_D4 */ |
762 |
case 0x1a: /* RCH_BASS_BOOST_D5 */ |
763 |
s->filter_data[reg - 0x07] = value;
|
764 |
return;
|
765 |
|
766 |
case 0x1b: /* PLL Programmability 1 */ |
767 |
s->pll[0] = value & 0xfffc; |
768 |
#ifdef TSC_VERBOSE
|
769 |
if (value & ~0xfffc) |
770 |
fprintf(stderr, "tsc2102_audio_register_write: "
|
771 |
"wrong value written into PLL 1\n");
|
772 |
#endif
|
773 |
return;
|
774 |
|
775 |
case 0x1c: /* PLL Programmability 2 */ |
776 |
s->pll[1] = value & 0xfffc; |
777 |
#ifdef TSC_VERBOSE
|
778 |
if (value & ~0xfffc) |
779 |
fprintf(stderr, "tsc2102_audio_register_write: "
|
780 |
"wrong value written into PLL 2\n");
|
781 |
#endif
|
782 |
return;
|
783 |
|
784 |
case 0x1d: /* Audio Control 4 */ |
785 |
s->softstep = !(value & 0x4000);
|
786 |
#ifdef TSC_VERBOSE
|
787 |
if (value & ~0x4000) |
788 |
fprintf(stderr, "tsc2102_audio_register_write: "
|
789 |
"wrong value written into Audio 4\n");
|
790 |
#endif
|
791 |
return;
|
792 |
|
793 |
default:
|
794 |
#ifdef TSC_VERBOSE
|
795 |
fprintf(stderr, "tsc2102_audio_register_write: "
|
796 |
"no such register: 0x%02x\n", reg);
|
797 |
#endif
|
798 |
} |
799 |
} |
800 |
|
801 |
/* This handles most of the chip logic. */
|
802 |
static void tsc210x_pin_update(TSC210xState *s) |
803 |
{ |
804 |
int64_t expires; |
805 |
int pin_state;
|
806 |
|
807 |
switch (s->pin_func) {
|
808 |
case 0: |
809 |
pin_state = s->pressure; |
810 |
break;
|
811 |
case 1: |
812 |
pin_state = !!s->dav; |
813 |
break;
|
814 |
case 2: |
815 |
default:
|
816 |
pin_state = s->pressure && !s->dav; |
817 |
} |
818 |
|
819 |
if (!s->enabled)
|
820 |
pin_state = 0;
|
821 |
|
822 |
if (pin_state != s->irq) {
|
823 |
s->irq = pin_state; |
824 |
qemu_set_irq(s->pint, !s->irq); |
825 |
} |
826 |
|
827 |
switch (s->nextfunction) {
|
828 |
case TSC_MODE_XY_SCAN:
|
829 |
case TSC_MODE_XYZ_SCAN:
|
830 |
if (!s->pressure)
|
831 |
return;
|
832 |
break;
|
833 |
|
834 |
case TSC_MODE_X:
|
835 |
case TSC_MODE_Y:
|
836 |
case TSC_MODE_Z:
|
837 |
if (!s->pressure)
|
838 |
return;
|
839 |
/* Fall through */
|
840 |
case TSC_MODE_BAT1:
|
841 |
case TSC_MODE_BAT2:
|
842 |
case TSC_MODE_AUX:
|
843 |
case TSC_MODE_TEMP1:
|
844 |
case TSC_MODE_TEMP2:
|
845 |
if (s->dav)
|
846 |
s->enabled = 0;
|
847 |
break;
|
848 |
|
849 |
case TSC_MODE_AUX_SCAN:
|
850 |
case TSC_MODE_PORT_SCAN:
|
851 |
break;
|
852 |
|
853 |
case TSC_MODE_NO_SCAN:
|
854 |
case TSC_MODE_XX_DRV:
|
855 |
case TSC_MODE_YY_DRV:
|
856 |
case TSC_MODE_YX_DRV:
|
857 |
default:
|
858 |
return;
|
859 |
} |
860 |
|
861 |
if (!s->enabled || s->busy || s->dav)
|
862 |
return;
|
863 |
|
864 |
s->busy = 1;
|
865 |
s->precision = s->nextprecision; |
866 |
s->function = s->nextfunction; |
867 |
expires = qemu_get_clock_ns(vm_clock) + (get_ticks_per_sec() >> 10);
|
868 |
qemu_mod_timer(s->timer, expires); |
869 |
} |
870 |
|
871 |
static uint16_t tsc210x_read(TSC210xState *s)
|
872 |
{ |
873 |
uint16_t ret = 0x0000;
|
874 |
|
875 |
if (!s->command)
|
876 |
fprintf(stderr, "tsc210x_read: SPI underrun!\n");
|
877 |
|
878 |
switch (s->page) {
|
879 |
case TSC_DATA_REGISTERS_PAGE:
|
880 |
ret = tsc2102_data_register_read(s, s->offset); |
881 |
if (!s->dav)
|
882 |
qemu_irq_raise(s->davint); |
883 |
break;
|
884 |
case TSC_CONTROL_REGISTERS_PAGE:
|
885 |
ret = tsc2102_control_register_read(s, s->offset); |
886 |
break;
|
887 |
case TSC_AUDIO_REGISTERS_PAGE:
|
888 |
ret = tsc2102_audio_register_read(s, s->offset); |
889 |
break;
|
890 |
default:
|
891 |
hw_error("tsc210x_read: wrong memory page\n");
|
892 |
} |
893 |
|
894 |
tsc210x_pin_update(s); |
895 |
|
896 |
/* Allow sequential reads. */
|
897 |
s->offset ++; |
898 |
s->state = 0;
|
899 |
return ret;
|
900 |
} |
901 |
|
902 |
static void tsc210x_write(TSC210xState *s, uint16_t value) |
903 |
{ |
904 |
/*
|
905 |
* This is a two-state state machine for reading
|
906 |
* command and data every second time.
|
907 |
*/
|
908 |
if (!s->state) {
|
909 |
s->command = value >> 15;
|
910 |
s->page = (value >> 11) & 0x0f; |
911 |
s->offset = (value >> 5) & 0x3f; |
912 |
s->state = 1;
|
913 |
} else {
|
914 |
if (s->command)
|
915 |
fprintf(stderr, "tsc210x_write: SPI overrun!\n");
|
916 |
else
|
917 |
switch (s->page) {
|
918 |
case TSC_DATA_REGISTERS_PAGE:
|
919 |
tsc2102_data_register_write(s, s->offset, value); |
920 |
break;
|
921 |
case TSC_CONTROL_REGISTERS_PAGE:
|
922 |
tsc2102_control_register_write(s, s->offset, value); |
923 |
break;
|
924 |
case TSC_AUDIO_REGISTERS_PAGE:
|
925 |
tsc2102_audio_register_write(s, s->offset, value); |
926 |
break;
|
927 |
default:
|
928 |
hw_error("tsc210x_write: wrong memory page\n");
|
929 |
} |
930 |
|
931 |
tsc210x_pin_update(s); |
932 |
s->state = 0;
|
933 |
} |
934 |
} |
935 |
|
936 |
uint32_t tsc210x_txrx(void *opaque, uint32_t value, int len) |
937 |
{ |
938 |
TSC210xState *s = opaque; |
939 |
uint32_t ret = 0;
|
940 |
|
941 |
if (len != 16) |
942 |
hw_error("%s: FIXME: bad SPI word width %i\n", __FUNCTION__, len);
|
943 |
|
944 |
/* TODO: sequential reads etc - how do we make sure the host doesn't
|
945 |
* unintentionally read out a conversion result from a register while
|
946 |
* transmitting the command word of the next command? */
|
947 |
if (!value || (s->state && s->command))
|
948 |
ret = tsc210x_read(s); |
949 |
if (value || (s->state && !s->command))
|
950 |
tsc210x_write(s, value); |
951 |
|
952 |
return ret;
|
953 |
} |
954 |
|
955 |
static void tsc210x_timer_tick(void *opaque) |
956 |
{ |
957 |
TSC210xState *s = opaque; |
958 |
|
959 |
/* Timer ticked -- a set of conversions has been finished. */
|
960 |
|
961 |
if (!s->busy)
|
962 |
return;
|
963 |
|
964 |
s->busy = 0;
|
965 |
s->dav |= mode_regs[s->function]; |
966 |
tsc210x_pin_update(s); |
967 |
qemu_irq_lower(s->davint); |
968 |
} |
969 |
|
970 |
static void tsc210x_touchscreen_event(void *opaque, |
971 |
int x, int y, int z, int buttons_state) |
972 |
{ |
973 |
TSC210xState *s = opaque; |
974 |
int p = s->pressure;
|
975 |
|
976 |
if (buttons_state) {
|
977 |
s->x = x; |
978 |
s->y = y; |
979 |
} |
980 |
s->pressure = !!buttons_state; |
981 |
|
982 |
/*
|
983 |
* Note: We would get better responsiveness in the guest by
|
984 |
* signaling TS events immediately, but for now we simulate
|
985 |
* the first conversion delay for sake of correctness.
|
986 |
*/
|
987 |
if (p != s->pressure)
|
988 |
tsc210x_pin_update(s); |
989 |
} |
990 |
|
991 |
static void tsc210x_i2s_swallow(TSC210xState *s) |
992 |
{ |
993 |
if (s->dac_voice[0]) |
994 |
tsc210x_out_flush(s, s->codec.out.len); |
995 |
else
|
996 |
s->codec.out.len = 0;
|
997 |
} |
998 |
|
999 |
static void tsc210x_i2s_set_rate(TSC210xState *s, int in, int out) |
1000 |
{ |
1001 |
s->i2s_tx_rate = out; |
1002 |
s->i2s_rx_rate = in; |
1003 |
} |
1004 |
|
1005 |
static void tsc210x_save(QEMUFile *f, void *opaque) |
1006 |
{ |
1007 |
TSC210xState *s = (TSC210xState *) opaque; |
1008 |
int64_t now = qemu_get_clock_ns(vm_clock); |
1009 |
int i;
|
1010 |
|
1011 |
qemu_put_be16(f, s->x); |
1012 |
qemu_put_be16(f, s->y); |
1013 |
qemu_put_byte(f, s->pressure); |
1014 |
|
1015 |
qemu_put_byte(f, s->state); |
1016 |
qemu_put_byte(f, s->page); |
1017 |
qemu_put_byte(f, s->offset); |
1018 |
qemu_put_byte(f, s->command); |
1019 |
|
1020 |
qemu_put_byte(f, s->irq); |
1021 |
qemu_put_be16s(f, &s->dav); |
1022 |
|
1023 |
qemu_put_timer(f, s->timer); |
1024 |
qemu_put_byte(f, s->enabled); |
1025 |
qemu_put_byte(f, s->host_mode); |
1026 |
qemu_put_byte(f, s->function); |
1027 |
qemu_put_byte(f, s->nextfunction); |
1028 |
qemu_put_byte(f, s->precision); |
1029 |
qemu_put_byte(f, s->nextprecision); |
1030 |
qemu_put_byte(f, s->filter); |
1031 |
qemu_put_byte(f, s->pin_func); |
1032 |
qemu_put_byte(f, s->ref); |
1033 |
qemu_put_byte(f, s->timing); |
1034 |
qemu_put_be32(f, s->noise); |
1035 |
|
1036 |
qemu_put_be16s(f, &s->audio_ctrl1); |
1037 |
qemu_put_be16s(f, &s->audio_ctrl2); |
1038 |
qemu_put_be16s(f, &s->audio_ctrl3); |
1039 |
qemu_put_be16s(f, &s->pll[0]);
|
1040 |
qemu_put_be16s(f, &s->pll[1]);
|
1041 |
qemu_put_be16s(f, &s->volume); |
1042 |
qemu_put_sbe64(f, (s->volume_change - now)); |
1043 |
qemu_put_sbe64(f, (s->powerdown - now)); |
1044 |
qemu_put_byte(f, s->softstep); |
1045 |
qemu_put_be16s(f, &s->dac_power); |
1046 |
|
1047 |
for (i = 0; i < 0x14; i ++) |
1048 |
qemu_put_be16s(f, &s->filter_data[i]); |
1049 |
} |
1050 |
|
1051 |
static int tsc210x_load(QEMUFile *f, void *opaque, int version_id) |
1052 |
{ |
1053 |
TSC210xState *s = (TSC210xState *) opaque; |
1054 |
int64_t now = qemu_get_clock_ns(vm_clock); |
1055 |
int i;
|
1056 |
|
1057 |
s->x = qemu_get_be16(f); |
1058 |
s->y = qemu_get_be16(f); |
1059 |
s->pressure = qemu_get_byte(f); |
1060 |
|
1061 |
s->state = qemu_get_byte(f); |
1062 |
s->page = qemu_get_byte(f); |
1063 |
s->offset = qemu_get_byte(f); |
1064 |
s->command = qemu_get_byte(f); |
1065 |
|
1066 |
s->irq = qemu_get_byte(f); |
1067 |
qemu_get_be16s(f, &s->dav); |
1068 |
|
1069 |
qemu_get_timer(f, s->timer); |
1070 |
s->enabled = qemu_get_byte(f); |
1071 |
s->host_mode = qemu_get_byte(f); |
1072 |
s->function = qemu_get_byte(f); |
1073 |
s->nextfunction = qemu_get_byte(f); |
1074 |
s->precision = qemu_get_byte(f); |
1075 |
s->nextprecision = qemu_get_byte(f); |
1076 |
s->filter = qemu_get_byte(f); |
1077 |
s->pin_func = qemu_get_byte(f); |
1078 |
s->ref = qemu_get_byte(f); |
1079 |
s->timing = qemu_get_byte(f); |
1080 |
s->noise = qemu_get_be32(f); |
1081 |
|
1082 |
qemu_get_be16s(f, &s->audio_ctrl1); |
1083 |
qemu_get_be16s(f, &s->audio_ctrl2); |
1084 |
qemu_get_be16s(f, &s->audio_ctrl3); |
1085 |
qemu_get_be16s(f, &s->pll[0]);
|
1086 |
qemu_get_be16s(f, &s->pll[1]);
|
1087 |
qemu_get_be16s(f, &s->volume); |
1088 |
s->volume_change = qemu_get_sbe64(f) + now; |
1089 |
s->powerdown = qemu_get_sbe64(f) + now; |
1090 |
s->softstep = qemu_get_byte(f); |
1091 |
qemu_get_be16s(f, &s->dac_power); |
1092 |
|
1093 |
for (i = 0; i < 0x14; i ++) |
1094 |
qemu_get_be16s(f, &s->filter_data[i]); |
1095 |
|
1096 |
s->busy = qemu_timer_pending(s->timer); |
1097 |
qemu_set_irq(s->pint, !s->irq); |
1098 |
qemu_set_irq(s->davint, !s->dav); |
1099 |
|
1100 |
return 0; |
1101 |
} |
1102 |
|
1103 |
uWireSlave *tsc2102_init(qemu_irq pint) |
1104 |
{ |
1105 |
TSC210xState *s; |
1106 |
|
1107 |
s = (TSC210xState *) |
1108 |
g_malloc0(sizeof(TSC210xState));
|
1109 |
memset(s, 0, sizeof(TSC210xState)); |
1110 |
s->x = 160;
|
1111 |
s->y = 160;
|
1112 |
s->pressure = 0;
|
1113 |
s->precision = s->nextprecision = 0;
|
1114 |
s->timer = qemu_new_timer_ns(vm_clock, tsc210x_timer_tick, s); |
1115 |
s->pint = pint; |
1116 |
s->model = 0x2102;
|
1117 |
s->name = "tsc2102";
|
1118 |
|
1119 |
s->tr[0] = 0; |
1120 |
s->tr[1] = 1; |
1121 |
s->tr[2] = 1; |
1122 |
s->tr[3] = 0; |
1123 |
s->tr[4] = 1; |
1124 |
s->tr[5] = 0; |
1125 |
s->tr[6] = 1; |
1126 |
s->tr[7] = 0; |
1127 |
|
1128 |
s->chip.opaque = s; |
1129 |
s->chip.send = (void *) tsc210x_write;
|
1130 |
s->chip.receive = (void *) tsc210x_read;
|
1131 |
|
1132 |
s->codec.opaque = s; |
1133 |
s->codec.tx_swallow = (void *) tsc210x_i2s_swallow;
|
1134 |
s->codec.set_rate = (void *) tsc210x_i2s_set_rate;
|
1135 |
s->codec.in.fifo = s->in_fifo; |
1136 |
s->codec.out.fifo = s->out_fifo; |
1137 |
|
1138 |
tsc210x_reset(s); |
1139 |
|
1140 |
qemu_add_mouse_event_handler(tsc210x_touchscreen_event, s, 1,
|
1141 |
"QEMU TSC2102-driven Touchscreen");
|
1142 |
|
1143 |
AUD_register_card(s->name, &s->card); |
1144 |
|
1145 |
qemu_register_reset((void *) tsc210x_reset, s);
|
1146 |
register_savevm(NULL, s->name, -1, 0, |
1147 |
tsc210x_save, tsc210x_load, s); |
1148 |
|
1149 |
return &s->chip;
|
1150 |
} |
1151 |
|
1152 |
uWireSlave *tsc2301_init(qemu_irq penirq, qemu_irq kbirq, qemu_irq dav) |
1153 |
{ |
1154 |
TSC210xState *s; |
1155 |
|
1156 |
s = (TSC210xState *) |
1157 |
g_malloc0(sizeof(TSC210xState));
|
1158 |
memset(s, 0, sizeof(TSC210xState)); |
1159 |
s->x = 400;
|
1160 |
s->y = 240;
|
1161 |
s->pressure = 0;
|
1162 |
s->precision = s->nextprecision = 0;
|
1163 |
s->timer = qemu_new_timer_ns(vm_clock, tsc210x_timer_tick, s); |
1164 |
s->pint = penirq; |
1165 |
s->kbint = kbirq; |
1166 |
s->davint = dav; |
1167 |
s->model = 0x2301;
|
1168 |
s->name = "tsc2301";
|
1169 |
|
1170 |
s->tr[0] = 0; |
1171 |
s->tr[1] = 1; |
1172 |
s->tr[2] = 1; |
1173 |
s->tr[3] = 0; |
1174 |
s->tr[4] = 1; |
1175 |
s->tr[5] = 0; |
1176 |
s->tr[6] = 1; |
1177 |
s->tr[7] = 0; |
1178 |
|
1179 |
s->chip.opaque = s; |
1180 |
s->chip.send = (void *) tsc210x_write;
|
1181 |
s->chip.receive = (void *) tsc210x_read;
|
1182 |
|
1183 |
s->codec.opaque = s; |
1184 |
s->codec.tx_swallow = (void *) tsc210x_i2s_swallow;
|
1185 |
s->codec.set_rate = (void *) tsc210x_i2s_set_rate;
|
1186 |
s->codec.in.fifo = s->in_fifo; |
1187 |
s->codec.out.fifo = s->out_fifo; |
1188 |
|
1189 |
tsc210x_reset(s); |
1190 |
|
1191 |
qemu_add_mouse_event_handler(tsc210x_touchscreen_event, s, 1,
|
1192 |
"QEMU TSC2301-driven Touchscreen");
|
1193 |
|
1194 |
AUD_register_card(s->name, &s->card); |
1195 |
|
1196 |
qemu_register_reset((void *) tsc210x_reset, s);
|
1197 |
register_savevm(NULL, s->name, -1, 0, tsc210x_save, tsc210x_load, s); |
1198 |
|
1199 |
return &s->chip;
|
1200 |
} |
1201 |
|
1202 |
I2SCodec *tsc210x_codec(uWireSlave *chip) |
1203 |
{ |
1204 |
TSC210xState *s = (TSC210xState *) chip->opaque; |
1205 |
|
1206 |
return &s->codec;
|
1207 |
} |
1208 |
|
1209 |
/*
|
1210 |
* Use tslib generated calibration data to generate ADC input values
|
1211 |
* from the touchscreen. Assuming 12-bit precision was used during
|
1212 |
* tslib calibration.
|
1213 |
*/
|
1214 |
void tsc210x_set_transform(uWireSlave *chip,
|
1215 |
MouseTransformInfo *info) |
1216 |
{ |
1217 |
TSC210xState *s = (TSC210xState *) chip->opaque; |
1218 |
#if 0
|
1219 |
int64_t ltr[8];
|
1220 |
|
1221 |
ltr[0] = (int64_t) info->a[1] * info->y;
|
1222 |
ltr[1] = (int64_t) info->a[4] * info->x;
|
1223 |
ltr[2] = (int64_t) info->a[1] * info->a[3] -
|
1224 |
(int64_t) info->a[4] * info->a[0];
|
1225 |
ltr[3] = (int64_t) info->a[2] * info->a[4] -
|
1226 |
(int64_t) info->a[5] * info->a[1];
|
1227 |
ltr[4] = (int64_t) info->a[0] * info->y;
|
1228 |
ltr[5] = (int64_t) info->a[3] * info->x;
|
1229 |
ltr[6] = (int64_t) info->a[4] * info->a[0] -
|
1230 |
(int64_t) info->a[1] * info->a[3];
|
1231 |
ltr[7] = (int64_t) info->a[2] * info->a[3] -
|
1232 |
(int64_t) info->a[5] * info->a[0];
|
1233 |
|
1234 |
/* Avoid integer overflow */
|
1235 |
s->tr[0] = ltr[0] >> 11;
|
1236 |
s->tr[1] = ltr[1] >> 11;
|
1237 |
s->tr[2] = muldiv64(ltr[2], 1, info->a[6]);
|
1238 |
s->tr[3] = muldiv64(ltr[3], 1 << 4, ltr[2]);
|
1239 |
s->tr[4] = ltr[4] >> 11;
|
1240 |
s->tr[5] = ltr[5] >> 11;
|
1241 |
s->tr[6] = muldiv64(ltr[6], 1, info->a[6]);
|
1242 |
s->tr[7] = muldiv64(ltr[7], 1 << 4, ltr[6]);
|
1243 |
#else
|
1244 |
|
1245 |
/* This version assumes touchscreen X & Y axis are parallel or
|
1246 |
* perpendicular to LCD's X & Y axis in some way. */
|
1247 |
if (abs(info->a[0]) > abs(info->a[1])) { |
1248 |
s->tr[0] = 0; |
1249 |
s->tr[1] = -info->a[6] * info->x; |
1250 |
s->tr[2] = info->a[0]; |
1251 |
s->tr[3] = -info->a[2] / info->a[0]; |
1252 |
s->tr[4] = info->a[6] * info->y; |
1253 |
s->tr[5] = 0; |
1254 |
s->tr[6] = info->a[4]; |
1255 |
s->tr[7] = -info->a[5] / info->a[4]; |
1256 |
} else {
|
1257 |
s->tr[0] = info->a[6] * info->y; |
1258 |
s->tr[1] = 0; |
1259 |
s->tr[2] = info->a[1]; |
1260 |
s->tr[3] = -info->a[2] / info->a[1]; |
1261 |
s->tr[4] = 0; |
1262 |
s->tr[5] = -info->a[6] * info->x; |
1263 |
s->tr[6] = info->a[3]; |
1264 |
s->tr[7] = -info->a[5] / info->a[3]; |
1265 |
} |
1266 |
|
1267 |
s->tr[0] >>= 11; |
1268 |
s->tr[1] >>= 11; |
1269 |
s->tr[3] <<= 4; |
1270 |
s->tr[4] >>= 11; |
1271 |
s->tr[5] >>= 11; |
1272 |
s->tr[7] <<= 4; |
1273 |
#endif
|
1274 |
} |
1275 |
|
1276 |
void tsc210x_key_event(uWireSlave *chip, int key, int down) |
1277 |
{ |
1278 |
TSC210xState *s = (TSC210xState *) chip->opaque; |
1279 |
|
1280 |
if (down)
|
1281 |
s->kb.down |= 1 << key;
|
1282 |
else
|
1283 |
s->kb.down &= ~(1 << key);
|
1284 |
|
1285 |
if (down && (s->kb.down & ~s->kb.mask) && !s->kb.intr) {
|
1286 |
s->kb.intr = 1;
|
1287 |
qemu_irq_lower(s->kbint); |
1288 |
} else if (s->kb.intr && !(s->kb.down & ~s->kb.mask) && |
1289 |
!(s->kb.mode & 1)) {
|
1290 |
s->kb.intr = 0;
|
1291 |
qemu_irq_raise(s->kbint); |
1292 |
} |
1293 |
} |