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SA9200: Adjust touchpad sensitivities so that actual contact with the player is needed to cause button presses and hopefully those settings will work nicely. Add a parameter read function to the MEP driver for debugging and RE purposes; enable compilation of it if you want to use it. Make a note in power-sa9200.c about button inits.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29032 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2011-01-11 23:48:29 +00:00
parent fd240ab240
commit 267ac4b79b
4 changed files with 80 additions and 2 deletions
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46
firmware/target/arm/philips/sa9200/button-sa9200.c
View file

@ -32,10 +32,52 @@ static int int_btn = BUTTON_NONE;
#ifndef BOOTLOADER
static bool hold_button_old = false;
/* Capacitive buttons - lowest setting is still very sensitive */
static const signed char button_sensitivity = -8; /* -8 to 7 */
/* Strip - decent amount of contact needed */
static const signed char strip_sensitivity = 0; /* -8 to 7 */
static const unsigned char strip_pressure = 25; /* 0 to 255 */
void button_init_device(void)
{
/* The touchpad is powered on and initialized in power-sa9200.c
since it needs to be ready for both buttons and button lights. */
/* perform button-specific inits here */
/* Besides $00, only common parameters $20 and $21 are supported */
/* Report modes:
* [15:12] cap btn sens : xxxx,
* [11: 8] pos sen sens : xxxx,
* [ 7: 6] rate: 10 (40 rps),
* [ 5] no filter: 0,
* [ 4] reserved: 0,
* [ 3] en scr: 0,
* [ 2] en btns: 1,
* [ 1] en rel: 0,
* [ 0] en abs: 1 */
touchpad_set_parameter(0, 0x20,
((button_sensitivity & 0xf) << 12) |
((strip_sensitivity & 0xf) << 8) |
(0x2 << 6) |
(0x1 << 2) |
(0x1 << 0));
/* Enhanced operating configuration:
* [15: 9] reserved : 0000000
* [ 8] Min abs reporting : 0
* [ 7] reserved : 0
* [ 6] not all cap btns : 1
* [ 5] single cap btn : 0
* [ 4] en 50ms debounce : 1
* [ 3] motion reporting : 0
* [ 2] clip z if no finger : 0
* [ 1] disable decel : 0
* [ 0] enable dribble : 0 */
touchpad_set_parameter(0, 0x21,
(0x1 << 6) | (0x1 << 4));
}
/*
@ -43,7 +85,7 @@ void button_init_device(void)
*/
void button_int(void)
{
char data[4];
unsigned char data[4];
int val;
int_btn = BUTTON_NONE;
@ -59,7 +101,7 @@ void button_int(void)
if (data[1] & 0x8) int_btn |= BUTTON_LEFT;
if (data[2] & 0x1) int_btn |= BUTTON_MENU;
}
else if (val == MEP_ABSOLUTE_HEADER)
else if (val == MEP_ABSOLUTE_HEADER && data[3] >= strip_pressure)
{
/* Absolute packet - the finger is on the vertical strip.
Position ranges from 1-4095, with 1 at the bottom. */

2
firmware/target/arm/philips/sa9200/power-sa9200.c
View file

@ -66,6 +66,8 @@ void power_init(void)
{
logf("touchpad not ready");
}
/* Setups specifically for buttons are handled in button-sa9200.c */
#endif
}