Add a file missing from the previous commit.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4375 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
balrog
parent
e927bb0070
commit
069de56277
@ -1031,4 +1031,5 @@ QEMUMachine n810_machine = {
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"n810",
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"Nokia N810 tablet aka. RX-44 (OMAP2420)",
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n810_init,
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(0x08000000 + 0x00010000 + OMAP242X_SRAM_SIZE) | RAMSIZE_FIXED,
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};
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601
hw/tsc2005.c
Normal file
601
hw/tsc2005.c
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@ -0,0 +1,601 @@
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/*
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* TI TSC2005 emulator.
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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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include "hw.h"
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#include "qemu-timer.h"
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#include "console.h"
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#include "omap.h"
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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
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#define TSC_VERBOSE
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#define TSC_CUT_RESOLUTION(value, p) ((value) >> (16 - (p ? 12 : 10)))
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struct tsc2005_state_s {
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qemu_irq pint; /* Combination of the nPENIRQ and DAV signals */
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QEMUTimer *timer;
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uint16_t model;
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int x, y;
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int pressure;
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int state, reg, irq, command;
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uint16_t data, dav;
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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 timing[2];
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int noise;
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int reset;
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int pdst;
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int pnd0;
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uint16_t temp_thr[2];
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uint16_t aux_thr[2];
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int tr[8];
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};
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enum {
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TSC_MODE_XYZ_SCAN = 0x0,
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TSC_MODE_XY_SCAN,
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TSC_MODE_X,
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TSC_MODE_Y,
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TSC_MODE_Z,
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TSC_MODE_AUX,
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TSC_MODE_TEMP1,
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TSC_MODE_TEMP2,
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TSC_MODE_AUX_SCAN,
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TSC_MODE_X_TEST,
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TSC_MODE_Y_TEST,
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TSC_MODE_TS_TEST,
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TSC_MODE_RESERVED,
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TSC_MODE_XX_DRV,
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TSC_MODE_YY_DRV,
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TSC_MODE_YX_DRV,
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};
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static const uint16_t mode_regs[16] = {
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0xf000, /* X, Y, Z scan */
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0xc000, /* X, Y scan */
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0x8000, /* X */
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0x4000, /* Y */
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0x3000, /* Z */
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0x0800, /* AUX */
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0x0400, /* TEMP1 */
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0x0200, /* TEMP2 */
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0x0800, /* AUX scan */
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0x0040, /* X test */
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0x0020, /* Y test */
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0x0080, /* Short-circuit test */
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0x0000, /* Reserved */
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0x0000, /* X+, X- drivers */
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0x0000, /* Y+, Y- drivers */
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0x0000, /* Y+, X- drivers */
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};
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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])
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#define Y_TRANSFORM(s) \
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((s->y * s->tr[4] - s->x * s->tr[5]) / s->tr[6] + s->tr[7])
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#define Z1_TRANSFORM(s) \
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((400 - ((s)->x >> 7) + ((s)->pressure << 10)) << 4)
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#define Z2_TRANSFORM(s) \
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((4000 + ((s)->y >> 7) - ((s)->pressure << 10)) << 4)
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#define AUX_VAL (700 << 4) /* +/- 3 at 12-bit */
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#define TEMP1_VAL (1264 << 4) /* +/- 5 at 12-bit */
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#define TEMP2_VAL (1531 << 4) /* +/- 5 at 12-bit */
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#define TSC_POWEROFF_DELAY 50
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#define TSC_SOFTSTEP_DELAY 50
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static uint16_t tsc2005_read(struct tsc2005_state_s *s, int reg)
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{
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uint16_t ret;
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switch (reg) {
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case 0x0: /* X */
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s->dav &= ~mode_regs[TSC_MODE_X];
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return TSC_CUT_RESOLUTION(X_TRANSFORM(s), s->precision) +
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(s->noise & 3);
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case 0x1: /* Y */
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s->dav &= ~mode_regs[TSC_MODE_Y];
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s->noise ++;
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return TSC_CUT_RESOLUTION(Y_TRANSFORM(s), s->precision) ^
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(s->noise & 3);
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case 0x2: /* Z1 */
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s->dav &= 0xdfff;
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return TSC_CUT_RESOLUTION(Z1_TRANSFORM(s), s->precision) -
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(s->noise & 3);
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case 0x3: /* Z2 */
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s->dav &= 0xefff;
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return TSC_CUT_RESOLUTION(Z2_TRANSFORM(s), s->precision) |
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(s->noise & 3);
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case 0x4: /* AUX */
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s->dav &= ~mode_regs[TSC_MODE_AUX];
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return TSC_CUT_RESOLUTION(AUX_VAL, s->precision);
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case 0x5: /* TEMP1 */
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s->dav &= ~mode_regs[TSC_MODE_TEMP1];
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return TSC_CUT_RESOLUTION(TEMP1_VAL, s->precision) -
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(s->noise & 5);
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case 0x6: /* TEMP2 */
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s->dav &= 0xdfff;
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s->dav &= ~mode_regs[TSC_MODE_TEMP2];
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return TSC_CUT_RESOLUTION(TEMP2_VAL, s->precision) ^
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(s->noise & 3);
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case 0x7: /* Status */
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ret = s->dav | (s->reset << 7) | (s->pdst << 2) | 0x0;
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s->dav &= ~(mode_regs[TSC_MODE_X_TEST] | mode_regs[TSC_MODE_Y_TEST] |
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mode_regs[TSC_MODE_TS_TEST]);
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s->reset = 1;
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return ret;
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case 0x8: /* AUX high treshold */
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return s->aux_thr[1];
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case 0x9: /* AUX low treshold */
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return s->aux_thr[0];
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case 0xa: /* TEMP high treshold */
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return s->temp_thr[1];
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case 0xb: /* TEMP low treshold */
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return s->temp_thr[0];
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case 0xc: /* CFR0 */
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return (s->pressure << 15) | ((!s->busy) << 14) |
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(s->nextprecision << 13) | s->timing[0];
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case 0xd: /* CFR1 */
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return s->timing[1];
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case 0xe: /* CFR2 */
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return (s->pin_func << 14) | s->filter;
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case 0xf: /* Function select status */
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return s->function >= 0 ? 1 << s->function : 0;
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}
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/* Never gets here */
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return 0xffff;
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}
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static void tsc2005_write(struct tsc2005_state_s *s, int reg, uint16_t data)
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{
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switch (reg) {
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case 0x8: /* AUX high treshold */
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s->aux_thr[1] = data;
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break;
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case 0x9: /* AUX low treshold */
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s->aux_thr[0] = data;
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break;
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case 0xa: /* TEMP high treshold */
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s->temp_thr[1] = data;
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break;
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case 0xb: /* TEMP low treshold */
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s->temp_thr[0] = data;
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break;
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case 0xc: /* CFR0 */
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s->host_mode = data >> 15;
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s->enabled = !(data & 0x4000);
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if (s->busy && !s->enabled)
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qemu_del_timer(s->timer);
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s->busy &= s->enabled;
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s->nextprecision = (data >> 13) & 1;
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s->timing[0] = data & 0x1fff;
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if ((s->timing[0] >> 11) == 3)
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fprintf(stderr, "%s: illegal conversion clock setting\n",
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__FUNCTION__);
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break;
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case 0xd: /* CFR1 */
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s->timing[1] = data & 0xf07;
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break;
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case 0xe: /* CFR2 */
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s->pin_func = (data >> 14) & 3;
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s->filter = data & 0x3fff;
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break;
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default:
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fprintf(stderr, "%s: write into read-only register %x\n",
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__FUNCTION__, reg);
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}
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}
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/* This handles most of the chip's logic. */
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static void tsc2005_pin_update(struct tsc2005_state_s *s)
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{
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int64_t expires;
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int pin_state;
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switch (s->pin_func) {
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case 0:
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pin_state = !s->pressure && !!s->dav;
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break;
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case 1:
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case 3:
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default:
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pin_state = !s->dav;
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break;
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case 2:
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pin_state = !s->pressure;
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}
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if (!s->enabled)
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pin_state = 0;
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if (pin_state != s->irq) {
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s->irq = pin_state;
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qemu_set_irq(s->pint, s->irq);
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}
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switch (s->nextfunction) {
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case TSC_MODE_XYZ_SCAN:
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case TSC_MODE_XY_SCAN:
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if (!s->pressure)
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return;
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/* Fall through */
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case TSC_MODE_AUX_SCAN:
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break;
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case TSC_MODE_X:
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case TSC_MODE_Y:
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case TSC_MODE_Z:
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if (!s->pressure)
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return;
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/* Fall through */
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case TSC_MODE_AUX:
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case TSC_MODE_TEMP1:
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case TSC_MODE_TEMP2:
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case TSC_MODE_X_TEST:
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case TSC_MODE_Y_TEST:
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case TSC_MODE_TS_TEST:
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if (s->dav)
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s->enabled = 0;
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break;
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case TSC_MODE_RESERVED:
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case TSC_MODE_XX_DRV:
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case TSC_MODE_YY_DRV:
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case TSC_MODE_YX_DRV:
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default:
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return;
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}
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if (!s->enabled || s->busy)
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return;
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s->busy = 1;
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s->precision = s->nextprecision;
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s->function = s->nextfunction;
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s->pdst = !s->pnd0; /* Synchronised on internal clock */
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expires = qemu_get_clock(vm_clock) + (ticks_per_sec >> 7);
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qemu_mod_timer(s->timer, expires);
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}
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static void tsc2005_reset(struct tsc2005_state_s *s)
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{
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s->state = 0;
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s->pin_func = 0;
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s->enabled = 0;
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s->busy = 0;
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s->nextprecision = 0;
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s->nextfunction = 0;
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s->timing[0] = 0;
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s->timing[1] = 0;
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s->irq = 0;
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s->dav = 0;
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s->reset = 0;
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s->pdst = 1;
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s->pnd0 = 0;
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s->function = -1;
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s->temp_thr[0] = 0x000;
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s->temp_thr[1] = 0xfff;
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s->aux_thr[0] = 0x000;
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s->aux_thr[1] = 0xfff;
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tsc2005_pin_update(s);
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}
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uint8_t tsc2005_txrx_word(void *opaque, uint8_t value)
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{
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struct tsc2005_state_s *s = opaque;
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uint32_t ret = 0;
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switch (s->state ++) {
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case 0:
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if (value & 0x80) {
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/* Command */
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if (value & (1 << 1))
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tsc2005_reset(s);
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else {
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s->nextfunction = (value >> 3) & 0xf;
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s->nextprecision = (value >> 2) & 1;
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if (s->enabled != !(value & 1)) {
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s->enabled = !(value & 1);
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fprintf(stderr, "%s: touchscreen sense %sabled\n",
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__FUNCTION__, s->enabled ? "en" : "dis");
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}
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tsc2005_pin_update(s);
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}
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s->state = 0;
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} else if (value) {
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/* Data transfer */
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s->reg = (value >> 3) & 0xf;
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s->pnd0 = (value >> 1) & 1;
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s->command = value & 1;
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if (s->command) {
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/* Read */
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s->data = tsc2005_read(s, s->reg);
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tsc2005_pin_update(s);
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} else
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s->data = 0;
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} else
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s->state = 0;
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break;
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case 1:
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if (s->command)
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ret = (s->data >> 8) & 0xff;
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else
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s->data |= value << 8;
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break;
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case 2:
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if (s->command)
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ret = s->data & 0xff;
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else {
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s->data |= value;
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tsc2005_write(s, s->reg, s->data);
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tsc2005_pin_update(s);
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}
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s->state = 0;
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break;
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}
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return ret;
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}
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uint32_t tsc2005_txrx(void *opaque, uint32_t value, int len)
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{
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uint32_t ret = 0;
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len &= ~7;
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while (len > 0) {
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len -= 8;
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ret |= tsc2005_txrx_word(opaque, (value >> len) & 0xff) << len;
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}
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return ret;
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}
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static void tsc2005_timer_tick(void *opaque)
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{
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struct tsc2005_state_s *s = opaque;
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/* Timer ticked -- a set of conversions has been finished. */
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if (!s->busy)
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return;
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s->busy = 0;
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s->dav |= mode_regs[s->function];
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s->function = -1;
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tsc2005_pin_update(s);
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}
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static void tsc2005_touchscreen_event(void *opaque,
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int x, int y, int z, int buttons_state)
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{
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struct tsc2005_state_s *s = opaque;
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int p = s->pressure;
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if (buttons_state) {
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s->x = x;
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s->y = y;
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}
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s->pressure = !!buttons_state;
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/*
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* Note: We would get better responsiveness in the guest by
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* signaling TS events immediately, but for now we simulate
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* the first conversion delay for sake of correctness.
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*/
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if (p != s->pressure)
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tsc2005_pin_update(s);
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}
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static void tsc2005_save(QEMUFile *f, void *opaque)
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{
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struct tsc2005_state_s *s = (struct tsc2005_state_s *) opaque;
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int i;
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qemu_put_be16(f, s->x);
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qemu_put_be16(f, s->y);
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qemu_put_byte(f, s->pressure);
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qemu_put_byte(f, s->state);
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qemu_put_byte(f, s->reg);
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qemu_put_byte(f, s->command);
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qemu_put_byte(f, s->irq);
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qemu_put_be16s(f, &s->dav);
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qemu_put_be16s(f, &s->data);
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qemu_put_timer(f, s->timer);
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qemu_put_byte(f, s->enabled);
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qemu_put_byte(f, s->host_mode);
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qemu_put_byte(f, s->function);
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qemu_put_byte(f, s->nextfunction);
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qemu_put_byte(f, s->precision);
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qemu_put_byte(f, s->nextprecision);
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qemu_put_be16(f, s->filter);
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qemu_put_byte(f, s->pin_func);
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qemu_put_be16(f, s->timing[0]);
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qemu_put_be16(f, s->timing[1]);
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qemu_put_be16s(f, &s->temp_thr[0]);
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qemu_put_be16s(f, &s->temp_thr[1]);
|
||||
qemu_put_be16s(f, &s->aux_thr[0]);
|
||||
qemu_put_be16s(f, &s->aux_thr[1]);
|
||||
qemu_put_be32(f, s->noise);
|
||||
qemu_put_byte(f, s->reset);
|
||||
qemu_put_byte(f, s->pdst);
|
||||
qemu_put_byte(f, s->pnd0);
|
||||
|
||||
for (i = 0; i < 8; i ++)
|
||||
qemu_put_be32(f, s->tr[i]);
|
||||
}
|
||||
|
||||
static int tsc2005_load(QEMUFile *f, void *opaque, int version_id)
|
||||
{
|
||||
struct tsc2005_state_s *s = (struct tsc2005_state_s *) opaque;
|
||||
int i;
|
||||
|
||||
s->x = qemu_get_be16(f);
|
||||
s->y = qemu_get_be16(f);
|
||||
s->pressure = qemu_get_byte(f);
|
||||
|
||||
s->state = qemu_get_byte(f);
|
||||
s->reg = qemu_get_byte(f);
|
||||
s->command = qemu_get_byte(f);
|
||||
|
||||
s->irq = qemu_get_byte(f);
|
||||
qemu_get_be16s(f, &s->dav);
|
||||
qemu_get_be16s(f, &s->data);
|
||||
|
||||
qemu_get_timer(f, s->timer);
|
||||
s->enabled = qemu_get_byte(f);
|
||||
s->host_mode = qemu_get_byte(f);
|
||||
s->function = qemu_get_byte(f);
|
||||
s->nextfunction = qemu_get_byte(f);
|
||||
s->precision = qemu_get_byte(f);
|
||||
s->nextprecision = qemu_get_byte(f);
|
||||
s->filter = qemu_get_be16(f);
|
||||
s->pin_func = qemu_get_byte(f);
|
||||
s->timing[0] = qemu_get_be16(f);
|
||||
s->timing[1] = qemu_get_be16(f);
|
||||
qemu_get_be16s(f, &s->temp_thr[0]);
|
||||
qemu_get_be16s(f, &s->temp_thr[1]);
|
||||
qemu_get_be16s(f, &s->aux_thr[0]);
|
||||
qemu_get_be16s(f, &s->aux_thr[1]);
|
||||
s->noise = qemu_get_be32(f);
|
||||
s->reset = qemu_get_byte(f);
|
||||
s->pdst = qemu_get_byte(f);
|
||||
s->pnd0 = qemu_get_byte(f);
|
||||
|
||||
for (i = 0; i < 8; i ++)
|
||||
s->tr[i] = qemu_get_be32(f);
|
||||
|
||||
s->busy = qemu_timer_pending(s->timer);
|
||||
tsc2005_pin_update(s);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tsc2005_iid = 0;
|
||||
|
||||
void *tsc2005_init(qemu_irq pintdav)
|
||||
{
|
||||
struct tsc2005_state_s *s;
|
||||
|
||||
s = (struct tsc2005_state_s *)
|
||||
qemu_mallocz(sizeof(struct tsc2005_state_s));
|
||||
s->x = 400;
|
||||
s->y = 240;
|
||||
s->pressure = 0;
|
||||
s->precision = s->nextprecision = 0;
|
||||
s->timer = qemu_new_timer(vm_clock, tsc2005_timer_tick, s);
|
||||
s->pint = pintdav;
|
||||
s->model = 0x2005;
|
||||
|
||||
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;
|
||||
|
||||
tsc2005_reset(s);
|
||||
|
||||
qemu_add_mouse_event_handler(tsc2005_touchscreen_event, s, 1,
|
||||
"QEMU TSC2005-driven Touchscreen");
|
||||
|
||||
qemu_register_reset((void *) tsc2005_reset, s);
|
||||
register_savevm("tsc2005", tsc2005_iid ++, 0,
|
||||
tsc2005_save, tsc2005_load, s);
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
/*
|
||||
* Use tslib generated calibration data to generate ADC input values
|
||||
* from the touchscreen. Assuming 12-bit precision was used during
|
||||
* tslib calibration.
|
||||
*/
|
||||
void tsc2005_set_transform(void *opaque, struct mouse_transform_info_s *info)
|
||||
{
|
||||
struct tsc2005_state_s *s = (struct tsc2005_state_s *) opaque;
|
||||
|
||||
/* 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;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user