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Diffstat (limited to 'arch/sh/boards/overdrive/led.c')
-rw-r--r-- | arch/sh/boards/overdrive/led.c | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/arch/sh/boards/overdrive/led.c b/arch/sh/boards/overdrive/led.c deleted file mode 100644 index 860d7f204a4e..000000000000 --- a/arch/sh/boards/overdrive/led.c +++ /dev/null | |||
@@ -1,58 +0,0 @@ | |||
1 | /* | ||
2 | * linux/arch/sh/overdrive/led.c | ||
3 | * | ||
4 | * Copyright (C) 1999 Stuart Menefy <stuart.menefy@st.com> | ||
5 | * | ||
6 | * May be copied or modified under the terms of the GNU General Public | ||
7 | * License. See linux/COPYING for more information. | ||
8 | * | ||
9 | * This file contains an Overdrive specific LED feature. | ||
10 | */ | ||
11 | |||
12 | #include <asm/system.h> | ||
13 | #include <asm/io.h> | ||
14 | #include <asm/overdrive/overdrive.h> | ||
15 | |||
16 | static void mach_led(int position, int value) | ||
17 | { | ||
18 | unsigned long flags; | ||
19 | unsigned long reg; | ||
20 | |||
21 | local_irq_save(flags); | ||
22 | |||
23 | reg = readl(OVERDRIVE_CTRL); | ||
24 | if (value) { | ||
25 | reg |= (1<<3); | ||
26 | } else { | ||
27 | reg &= ~(1<<3); | ||
28 | } | ||
29 | writel(reg, OVERDRIVE_CTRL); | ||
30 | |||
31 | local_irq_restore(flags); | ||
32 | } | ||
33 | |||
34 | #ifdef CONFIG_HEARTBEAT | ||
35 | |||
36 | #include <linux/sched.h> | ||
37 | |||
38 | /* acts like an actual heart beat -- ie thump-thump-pause... */ | ||
39 | void heartbeat_od(void) | ||
40 | { | ||
41 | static unsigned cnt = 0, period = 0, dist = 0; | ||
42 | |||
43 | if (cnt == 0 || cnt == dist) | ||
44 | mach_led( -1, 1); | ||
45 | else if (cnt == 7 || cnt == dist+7) | ||
46 | mach_led( -1, 0); | ||
47 | |||
48 | if (++cnt > period) { | ||
49 | cnt = 0; | ||
50 | /* The hyperbolic function below modifies the heartbeat period | ||
51 | * length in dependency of the current (5min) load. It goes | ||
52 | * through the points f(0)=126, f(1)=86, f(5)=51, | ||
53 | * f(inf)->30. */ | ||
54 | period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; | ||
55 | dist = period / 4; | ||
56 | } | ||
57 | } | ||
58 | #endif /* CONFIG_HEARTBEAT */ | ||