52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
/*
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* arch/sh/boards/cayman/led.c
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*
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* Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
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*
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* May be copied or modified under the terms of the GNU General Public
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* License. See linux/COPYING for more information.
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*
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* Flash the LEDs
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*/
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#include <asm/io.h>
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/*
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** It is supposed these functions to be used for a low level
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** debugging (via Cayman LEDs), hence to be available as soon
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** as possible.
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** Unfortunately Cayman LEDs relies on Cayman EPLD to be mapped
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** (this happen when IRQ are initialized... quite late).
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** These triky dependencies should be removed. Temporary, it
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** may be enough to NOP until EPLD is mapped.
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*/
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extern unsigned long epld_virt;
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#define LED_ADDR (epld_virt + 0x008)
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#define HDSP2534_ADDR (epld_virt + 0x100)
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void mach_led(int position, int value)
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{
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if (!epld_virt)
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return;
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if (value)
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ctrl_outl(0, LED_ADDR);
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else
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ctrl_outl(1, LED_ADDR);
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}
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void mach_alphanum(int position, unsigned char value)
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{
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if (!epld_virt)
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return;
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ctrl_outb(value, HDSP2534_ADDR + 0xe0 + (position << 2));
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}
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void mach_alphanum_brightness(int setting)
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{
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ctrl_outb(setting & 7, HDSP2534_ADDR + 0xc0);
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}
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