edid.c File Reference

#include <device/mmio.h>
#include <console/console.h>
#include <delay.h>
#include "i915_reg.h"
#include "edid.h"

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Macros
#define	GMBUS0_ADDR   (mmio + 4 * 0)
#define	GMBUS1_ADDR   (mmio + 4 * 1)
#define	GMBUS2_ADDR   (mmio + 4 * 2)
#define	GMBUS3_ADDR   (mmio + 4 * 3)
#define	GMBUS5_ADDR   (mmio + 4 * 8)
#define	AT24_ADDR   0x50 /* EDID EEPROM */

Functions
static void	wait_rdy (u8 *mmio)
static void	intel_gmbus_stop_bus (u8 *mmio, u8 bus)
void	intel_gmbus_stop (u8 *mmio)
void	intel_gmbus_read_edid (u8 *mmio, u8 bus, u8 slave, u8 *edid, u32 edid_size)

Macro Definition Documentation

AT24_ADDR

#define AT24_ADDR   0x50 /* EDID EEPROM */

Definition at line 14 of file edid.c.

GMBUS0_ADDR

#define GMBUS0_ADDR   (mmio + 4 * 0)

Definition at line 9 of file edid.c.

GMBUS1_ADDR

#define GMBUS1_ADDR   (mmio + 4 * 1)

Definition at line 10 of file edid.c.

GMBUS2_ADDR

#define GMBUS2_ADDR   (mmio + 4 * 2)

Definition at line 11 of file edid.c.

GMBUS3_ADDR

#define GMBUS3_ADDR   (mmio + 4 * 3)

Definition at line 12 of file edid.c.

GMBUS5_ADDR

#define GMBUS5_ADDR   (mmio + 4 * 8)

Definition at line 13 of file edid.c.

Function Documentation

intel_gmbus_read_edid()

void intel_gmbus_read_edid	(	u8 *	mmio,
		u8	bus,
		u8	slave,
		u8 *	edid,
		u32	edid_size
	)

Definition at line 54 of file edid.c.

References BIOS_SPEW, GMBUS0_ADDR, GMBUS1_ADDR, GMBUS2_ADDR, GMBUS3_ADDR, GMBUS5_ADDR, GMBUS_BYTE_COUNT_SHIFT, GMBUS_CYCLE_INDEX, GMBUS_CYCLE_STOP, GMBUS_CYCLE_WAIT, GMBUS_INUSE, GMBUS_SLAVE_READ, GMBUS_SLAVE_WRITE, GMBUS_SW_RDY, printk, read32(), slave, wait_rdy(), and write32().

Referenced by gma_func0_init(), intel_gma_init_lvds(), and probe_edid().

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intel_gmbus_stop()

void intel_gmbus_stop

(

u8 *

mmio

)

Definition at line 48 of file edid.c.

References intel_gmbus_stop_bus().

Referenced by gma_func0_init(), and probe_edid().

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intel_gmbus_stop_bus()

static void intel_gmbus_stop_bus ( u8 *  mmio, u8  bus  )

static

Definition at line 27 of file edid.c.

References AT24_ADDR, GMBUS0_ADDR, GMBUS1_ADDR, GMBUS2_ADDR, GMBUS5_ADDR, GMBUS_BYTE_COUNT_SHIFT, GMBUS_CYCLE_INDEX, GMBUS_CYCLE_STOP, GMBUS_CYCLE_WAIT, GMBUS_INUSE, GMBUS_SLAVE_READ, GMBUS_SLAVE_WRITE, GMBUS_SW_CLR_INT, GMBUS_SW_RDY, wait_rdy(), and write32().

Referenced by intel_gmbus_stop().

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wait_rdy()

static void wait_rdy ( u8 *  mmio )

static

Definition at line 16 of file edid.c.

References GMBUS2_ADDR, GMBUS_HW_RDY, read32(), and udelay().

Referenced by intel_gmbus_read_edid(), and intel_gmbus_stop_bus().

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