[linux-2.6-block.git] / arch / sh64 / mach-cayman / led.c

/*
 * arch/sh64/mach-cayman/led.c
 *
 * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
 *
 * May be copied or modified under the terms of the GNU General Public
 * License.  See linux/COPYING for more information.
 *
 * Flash the LEDs
 */
#include <asm/io.h>

/*
** It is supposed these functions to be used for a low level
** debugging (via Cayman LEDs), hence to be available as soon
** as possible.
** Unfortunately Cayman LEDs relies on Cayman EPLD to be mapped
** (this happen when IRQ are initialized... quite late).
** These triky dependencies should be removed. Temporary, it
** may be enough to NOP until EPLD is mapped.
*/

extern unsigned long epld_virt;

#define LED_ADDR      (epld_virt + 0x008)
#define HDSP2534_ADDR (epld_virt + 0x100)

void mach_led(int position, int value)
{
	if (!epld_virt)
		return;

	if (value)
		ctrl_outl(0, LED_ADDR);
	else
		ctrl_outl(1, LED_ADDR);

}

void mach_alphanum(int position, unsigned char value)
{
	if (!epld_virt)
		return;

	ctrl_outb(value, HDSP2534_ADDR + 0xe0 + (position << 2));
}

void mach_alphanum_brightness(int setting)
{
	ctrl_outb(setting & 7, HDSP2534_ADDR + 0xc0);
}
Commit	Line	Data
1da177e4	1	/*
f30c2269	2	* arch/sh64/mach-cayman/led.c
1da177e4 LT	3	*
	4	* Copyright (C) 2002 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	* Flash the LEDs
	10	*/
	11	#include <asm/io.h>
	12
	13	/*
	14	** It is supposed these functions to be used for a low level
	15	** debugging (via Cayman LEDs), hence to be available as soon
	16	** as possible.
	17	** Unfortunately Cayman LEDs relies on Cayman EPLD to be mapped
	18	** (this happen when IRQ are initialized... quite late).
	19	** These triky dependencies should be removed. Temporary, it
	20	** may be enough to NOP until EPLD is mapped.
	21	*/
	22
	23	extern unsigned long epld_virt;
	24
	25	#define LED_ADDR (epld_virt + 0x008)
	26	#define HDSP2534_ADDR (epld_virt + 0x100)
	27
	28	void mach_led(int position, int value)
	29	{
	30	if (!epld_virt)
	31	return;
	32
	33	if (value)
	34	ctrl_outl(0, LED_ADDR);
	35	else
	36	ctrl_outl(1, LED_ADDR);
	37
	38	}
	39
	40	void mach_alphanum(int position, unsigned char value)
	41	{
	42	if (!epld_virt)
	43	return;
	44
	45	ctrl_outb(value, HDSP2534_ADDR + 0xe0 + (position << 2));
	46	}
	47
	48	void mach_alphanum_brightness(int setting)
	49	{
	50	ctrl_outb(setting & 7, HDSP2534_ADDR + 0xc0);
	51	}