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Diffstat (limited to 'arch/sh/boards/harp/led.c')
-rw-r--r-- | arch/sh/boards/harp/led.c | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/arch/sh/boards/harp/led.c b/arch/sh/boards/harp/led.c deleted file mode 100644 index aeb7b392b190..000000000000 --- a/arch/sh/boards/harp/led.c +++ /dev/null | |||
@@ -1,51 +0,0 @@ | |||
1 | /* | ||
2 | * linux/arch/sh/stboards/led.c | ||
3 | * | ||
4 | * Copyright (C) 2000 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 ST40STB1 HARP and compatible code. | ||
10 | */ | ||
11 | |||
12 | #include <asm/io.h> | ||
13 | #include <asm/harp/harp.h> | ||
14 | |||
15 | /* Harp: Flash LD10 (front pannel) connected to EPLD (IC8) */ | ||
16 | /* Overdrive: Flash LD1 (front panel) connected to EPLD (IC4) */ | ||
17 | /* Works for HARP and overdrive */ | ||
18 | static void mach_led(int position, int value) | ||
19 | { | ||
20 | if (value) { | ||
21 | ctrl_outl(EPLD_LED_ON, EPLD_LED); | ||
22 | } else { | ||
23 | ctrl_outl(EPLD_LED_OFF, EPLD_LED); | ||
24 | } | ||
25 | } | ||
26 | |||
27 | #ifdef CONFIG_HEARTBEAT | ||
28 | |||
29 | #include <linux/sched.h> | ||
30 | |||
31 | /* acts like an actual heart beat -- ie thump-thump-pause... */ | ||
32 | void heartbeat_harp(void) | ||
33 | { | ||
34 | static unsigned cnt = 0, period = 0, dist = 0; | ||
35 | |||
36 | if (cnt == 0 || cnt == dist) | ||
37 | mach_led( -1, 1); | ||
38 | else if (cnt == 7 || cnt == dist+7) | ||
39 | mach_led( -1, 0); | ||
40 | |||
41 | if (++cnt > period) { | ||
42 | cnt = 0; | ||
43 | /* The hyperbolic function below modifies the heartbeat period | ||
44 | * length in dependency of the current (5min) load. It goes | ||
45 | * through the points f(0)=126, f(1)=86, f(5)=51, | ||
46 | * f(inf)->30. */ | ||
47 | period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; | ||
48 | dist = period / 4; | ||
49 | } | ||
50 | } | ||
51 | #endif | ||