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| author | Dave Chapman <dave@dchapman.com> | 2006-02-02 11:24:32 +0000 |
|---|---|---|
| committer | Dave Chapman <dave@dchapman.com> | 2006-02-02 11:24:32 +0000 |
| commit | 1023cedb79ed737464134e3f6acfaf1ffabadcda (patch) | |
| tree | d273cbbffb304825b21b1d31ed44ff6e92a00489 | |
| parent | fddefdcee2836b75f314a92c73bdef224165ad92 (diff) | |
| download | rockbox-1023cedb79ed737464134e3f6acfaf1ffabadcda.zip rockbox-1023cedb79ed737464134e3f6acfaf1ffabadcda.tar.gz rockbox-1023cedb79ed737464134e3f6acfaf1ffabadcda.tar.bz2 rockbox-1023cedb79ed737464134e3f6acfaf1ffabadcda.tar.xz | |
iPod: Remove/reduce the udelay()s in the button driver. They were in the IPL source, but do not appear to be needed.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8530 a1c6a512-1295-4272-9138-f99709370657
| -rw-r--r-- | firmware/drivers/button.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/firmware/drivers/button.c b/firmware/drivers/button.c index fc9cc7a..79378cd 100644 --- a/firmware/drivers/button.c +++ b/firmware/drivers/button.c @@ -121,7 +121,10 @@ static int ipod_4g_button_read(void) int new_wheel_value; int btn = BUTTON_NONE; - udelay(250); + /* The ipodlinux source had a udelay(250) here, but testing has shown that + it is not needed - tested on Nano, Color/Photo and Video. */ + /* udelay(250);*/ + reg = 0x7000c104; if ((inl(0x7000c104) & 0x4000000) != 0) { reg = reg + 0x3C; /* 0x7000c140 */ @@ -204,7 +207,9 @@ static int ipod_4g_button_read(void) void ipod_4g_button_int(void) { CPU_HI_INT_CLR = I2C_MASK; - udelay(250); + /* The following delay was 250 in the ipodlinux source, but 10 seems to + work fine - tested on Nano, Color/Photo and Video. */ + udelay(10); outl(0x0, 0x7000c140); int_btn = ipod_4g_button_read(); outl(inl(0x7000c104) | 0xC000000, 0x7000c104); |