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Add iPod Nano 2G µsec timer, and use it in the clickwheel driver.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23309 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sparmann 2009-10-21 18:53:41 +00:00
parent 7bff585d83
commit 4a63ac7c00
2 changed files with 2 additions and 13 deletions
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2
firmware/export/s5l8700.h
View file

@ -304,6 +304,8 @@
#define TDDATA1 (*(REG32_PTR_T)(0x3C70006C)) /* Data1 Register */
#define TDPRE (*(REG32_PTR_T)(0x3C700070)) /* Pre-scale register */
#define TDCNT (*(REG32_PTR_T)(0x3C700074)) /* Counter register */
#define USEC_TIMER (((*(REG32_PTR_T)(0x3C700080) << 32) \
| *(REG32_PTR_T)(0x3C700084)) * 5) /* 64bit 5usec timer */
/* 12. NAND FLASH CONTROLER */
#if CONFIG_CPU==S5L8701

13
firmware/target/arm/ipod/button-clickwheel.c
View file

@ -40,18 +40,9 @@
#include "power.h"
#include "powermgmt.h"
#ifdef CPU_PP
/* PortalPlayer uses the USEC timer */
#define WHEEL_FAST_OFF_TIMEOUT 250000 /* timeout for acceleration = 250ms */
#define WHEEL_REPEAT_TIMEOUT 250000 /* timeout for button repeat = 250ms */
#define WHEEL_UNTOUCH_TIMEOUT 150000 /* timeout for untouching wheel = 150ms */
#else
/* Other targets use current_tick */
#define WHEEL_FAST_OFF_TIMEOUT (HZ/4) /* timeout for acceleration = 250ms */
#define WHEEL_REPEAT_TIMEOUT (HZ/4) /* timeout for button repeat = 250ms */
#define WHEEL_UNTOUCH_TIMEOUT ((HZ*15)/100) /* timeout for untouching wheel = 150ms */
#endif
#ifdef CPU_PP
#define CLICKWHEEL_DATA (*(volatile unsigned long*)(0x7000c140))
@ -131,11 +122,7 @@ static inline int ipod_4g_button_read(void)
btn |= BUTTON_MENU;
if (status & 0x40000000)
{
#ifdef CPU_PP
unsigned long usec = USEC_TIMER;
#else
unsigned long usec = current_tick;
#endif
/* Highest wheel = 0x5F, clockwise increases */
new_wheel_value = (status >> 16) & 0x7f;