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Scale TSC2102 touchscreen pressure value more realistically (still could be better).

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PalmOS 5.2.1 now fully boots.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3741 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
balrog 2007-11-25 18:46:17 +00:00
parent 1f58732916
commit 8ef6367ea9
4 changed files with 11 additions and 8 deletions
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14
hw/tsc210x.c
View file

@ -130,9 +130,10 @@ static const uint16_t mode_regs[16] = {
#define Y_TRANSFORM(value) \
((150 + ((int) (value) * (3037 - 150) / 32768)) << 4)
#define Z1_TRANSFORM(s) \
((400 - (s)->x + ((s)->pressure << 9)) << 4)
((400 - ((s)->x >> 7) + ((s)->pressure << 10)) << 4)
#define Z2_TRANSFORM(s) \
((4000 + (s)->y - ((s)->pressure << 10)) << 4)
((4000 + ((s)->y >> 7) - ((s)->pressure << 10)) << 4)
#define BAT1_VAL 0x8660
#define BAT2_VAL 0x0000
#define AUX1_VAL 0x35c0
@ -367,7 +368,8 @@ static uint16_t tsc2102_data_register_read(struct tsc210x_state_s *s, int reg)
case 0x05: /* BAT1 */
s->dav &= 0xffbf;
return TSC_CUT_RESOLUTION(BAT1_VAL, s->precision);
return TSC_CUT_RESOLUTION(BAT1_VAL, s->precision) +
(s->noise & 6);
case 0x06: /* BAT2 */
s->dav &= 0xffdf;
@ -383,11 +385,13 @@ static uint16_t tsc2102_data_register_read(struct tsc210x_state_s *s, int reg)
case 0x09: /* TEMP1 */
s->dav &= 0xfffb;
return TSC_CUT_RESOLUTION(TEMP1_VAL, s->precision);
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);
return TSC_CUT_RESOLUTION(TEMP2_VAL, s->precision) ^
(s->noise & 3);
case 0x0b: /* DAC */
s->dav &= 0xfffe;