index : renesas/drm.git	android live master
	libdrm, cloned from git://anongit.freedesktop.org/mesa/drm	Laurent Pinchart

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path: root/linux-core/radeon_ms_combios.h

Age	Commit message (Collapse)	Author
2008-01-15	radeon_ms: add rom parsing & adapt code	Jerome Glisse
	Add rom (only combios for now) parsing and use informations retrieve instead of hardcoded table. Shuffle code around a bit.

generated by cgit v1.2.3 (git 2.25.1) at 2024-09-12 23:02:01 +0000

/*
 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
 * Copyright (c) 2007 Intel Corporation
 *   Jesse Barnes <jesse.barnes@intel.com>
 */

#include <linux/i2c.h>
#include <linux/fb.h>
#include "drmP.h"
#include "intel_drv.h"

/**
 * intel_ddc_probe
 *
 */
bool intel_ddc_probe(struct drm_output *output)
{
	struct intel_output *intel_output = output->driver_private;
	u8 out_buf[] = { 0x0, 0x0};
	u8 buf[2];
	int ret;
	struct i2c_msg msgs[] = {
		{
			.addr = 0x50,
			.flags = 0,
			.len = 1,
			.buf = out_buf,
		},
		{
			.addr = 0x50,
			.flags = I2C_M_RD,
			.len = 1,
			.buf = buf,
		}
	};

	ret = i2c_transfer(&intel_output->ddc_bus->adapter, msgs, 2);
	if (ret == 2)
		return true;

	return false;
}

/**
 * intel_ddc_get_modes - get modelist from monitor
 * @output: DRM output device to use
 *
 * Fetch the EDID information from @output using the DDC bus.
 */
int intel_ddc_get_modes(struct drm_output *output)
{
	struct intel_output *intel_output = output->driver_private;

	return drm_add_edid_modes(output, &intel_output->ddc_bus->adapter);
}