WebSVN – Kolibri OS – Diff – /drivers/video/drm/i915/intel_dvo.c


/*
 * Copyright 2006 Dave Airlie 
 * Copyright © 2006-2007 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 *	Eric Anholt 
 */
#include 
#include 
#include 
#include 
#include "intel_drv.h"
#include 
#include "i915_drv.h"
#include "dvo.h"
 
#define SIL164_ADDR	0x38
#define CH7xxx_ADDR	0x76
#define TFP410_ADDR	0x38
#define NS2501_ADDR     0x38
 
static const struct intel_dvo_device intel_dvo_devices[] = {
	{
		.type = INTEL_DVO_CHIP_TMDS,
		.name = "sil164",
		.dvo_reg = DVOC,
		.slave_addr = SIL164_ADDR,
		.dev_ops = &sil164_ops,
	},
	{
		.type = INTEL_DVO_CHIP_TMDS,
		.name = "ch7xxx",
		.dvo_reg = DVOC,
		.slave_addr = CH7xxx_ADDR,
		.dev_ops = &ch7xxx_ops,
	},
	{
		.type = INTEL_DVO_CHIP_TMDS,
		.name = "ch7xxx",
		.dvo_reg = DVOC,
		.slave_addr = 0x75, /* For some ch7010 */
		.dev_ops = &ch7xxx_ops,
	},
	{
		.type = INTEL_DVO_CHIP_LVDS,
		.name = "ivch",
		.dvo_reg = DVOA,
		.slave_addr = 0x02, /* Might also be 0x44, 0x84, 0xc4 */
		.dev_ops = &ivch_ops,
	},
	{
		.type = INTEL_DVO_CHIP_TMDS,
		.name = "tfp410",
		.dvo_reg = DVOC,
		.slave_addr = TFP410_ADDR,
		.dev_ops = &tfp410_ops,
	},
	{
		.type = INTEL_DVO_CHIP_LVDS,
		.name = "ch7017",
		.dvo_reg = DVOC,
		.slave_addr = 0x75,
		.gpio = GMBUS_PORT_DPB,
		.dev_ops = &ch7017_ops,
	},
	{
	        .type = INTEL_DVO_CHIP_TMDS,
		.name = "ns2501",
		.dvo_reg = DVOC,
		.slave_addr = NS2501_ADDR,
		.dev_ops = &ns2501_ops,
	}
};
 
struct intel_dvo {
	struct intel_encoder base;
 
	struct intel_dvo_device dev;
 
	struct drm_display_mode *panel_fixed_mode;
	bool panel_wants_dither;
};
 
static struct intel_dvo *enc_to_dvo(struct intel_encoder *encoder)
{
	return container_of(encoder, struct intel_dvo, base);
}
 
static struct intel_dvo *intel_attached_dvo(struct drm_connector *connector)
{
	return enc_to_dvo(intel_attached_encoder(connector));
}
 
static bool intel_dvo_connector_get_hw_state(struct intel_connector *connector)
{
	struct drm_device *dev = connector->base.dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct intel_dvo *intel_dvo = intel_attached_dvo(&connector->base);
	u32 tmp;
 
	tmp = I915_READ(intel_dvo->dev.dvo_reg);
 
	if (!(tmp & DVO_ENABLE))
		return false;
 
	return intel_dvo->dev.dev_ops->get_hw_state(&intel_dvo->dev);
}
 
static bool intel_dvo_get_hw_state(struct intel_encoder *encoder,
				   enum pipe *pipe)
{
	struct drm_device *dev = encoder->base.dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);
	u32 tmp;
 
	tmp = I915_READ(intel_dvo->dev.dvo_reg);
 
	if (!(tmp & DVO_ENABLE))
		return false;
 
	*pipe = PORT_TO_PIPE(tmp);
 
	return true;
}
 
static void intel_dvo_get_config(struct intel_encoder *encoder,
				 struct intel_crtc_config *pipe_config)
{
	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);
	u32 tmp, flags = 0;
 
	tmp = I915_READ(intel_dvo->dev.dvo_reg);
	if (tmp & DVO_HSYNC_ACTIVE_HIGH)
		flags |= DRM_MODE_FLAG_PHSYNC;
	else
		flags |= DRM_MODE_FLAG_NHSYNC;
	if (tmp & DVO_VSYNC_ACTIVE_HIGH)
		flags |= DRM_MODE_FLAG_PVSYNC;
	else
		flags |= DRM_MODE_FLAG_NVSYNC;
 
	pipe_config->adjusted_mode.flags |= flags;
 
	pipe_config->adjusted_mode.crtc_clock = pipe_config->port_clock;
}
 
static void intel_disable_dvo(struct intel_encoder *encoder)
{
	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);
	u32 dvo_reg = intel_dvo->dev.dvo_reg;
	u32 temp = I915_READ(dvo_reg);
 
	intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, false);
	I915_WRITE(dvo_reg, temp & ~DVO_ENABLE);
	I915_READ(dvo_reg);
}
 
static void intel_enable_dvo(struct intel_encoder *encoder)
{
	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);
	struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);
	u32 dvo_reg = intel_dvo->dev.dvo_reg;
	u32 temp = I915_READ(dvo_reg);
 
		I915_WRITE(dvo_reg, temp | DVO_ENABLE);
		I915_READ(dvo_reg);
	intel_dvo->dev.dev_ops->mode_set(&intel_dvo->dev,
					 &crtc->config.requested_mode,
					 &crtc->config.adjusted_mode);
 
	intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, true);
}
 
/* Special dpms function to support cloning between dvo/sdvo/crt. */
static void intel_dvo_dpms(struct drm_connector *connector, int mode)
{
	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
	struct drm_crtc *crtc;
	struct intel_crtc_config *config;
 
	/* dvo supports only 2 dpms states. */
	if (mode != DRM_MODE_DPMS_ON)
		mode = DRM_MODE_DPMS_OFF;
 
	if (mode == connector->dpms)
		return;
 
	connector->dpms = mode;
 
	/* Only need to change hw state when actually enabled */
	crtc = intel_dvo->base.base.crtc;
	if (!crtc) {
		intel_dvo->base.connectors_active = false;
		return;
	}
 
	/* We call connector dpms manually below in case pipe dpms doesn't
	 * change due to cloning. */
	if (mode == DRM_MODE_DPMS_ON) {
		config = &to_intel_crtc(crtc)->config;
 
		intel_dvo->base.connectors_active = true;
 
		intel_crtc_update_dpms(crtc);
 
		intel_dvo->dev.dev_ops->mode_set(&intel_dvo->dev,
						 &config->requested_mode,
						 &config->adjusted_mode);
 
		intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, true);
	} else {
		intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, false);
 
		intel_dvo->base.connectors_active = false;
 
		intel_crtc_update_dpms(crtc);
	}
 
	intel_modeset_check_state(connector->dev);
}
 
static enum drm_mode_status
intel_dvo_mode_valid(struct drm_connector *connector,
				struct drm_display_mode *mode)
{
	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
 
	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
		return MODE_NO_DBLESCAN;
 
	/* XXX: Validate clock range */
 
	if (intel_dvo->panel_fixed_mode) {
		if (mode->hdisplay > intel_dvo->panel_fixed_mode->hdisplay)
			return MODE_PANEL;
		if (mode->vdisplay > intel_dvo->panel_fixed_mode->vdisplay)
			return MODE_PANEL;
	}
 
	return intel_dvo->dev.dev_ops->mode_valid(&intel_dvo->dev, mode);
}
 
static bool intel_dvo_compute_config(struct intel_encoder *encoder,
				     struct intel_crtc_config *pipe_config)
{
	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);
	struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
 
	/* If we have timings from the BIOS for the panel, put them in
	 * to the adjusted mode.  The CRTC will be set up for this mode,
	 * with the panel scaling set up to source from the H/VDisplay
	 * of the original mode.
	 */
	if (intel_dvo->panel_fixed_mode != NULL) {
#define C(x) adjusted_mode->x = intel_dvo->panel_fixed_mode->x
		C(hdisplay);
		C(hsync_start);
		C(hsync_end);
		C(htotal);
		C(vdisplay);
		C(vsync_start);
		C(vsync_end);
		C(vtotal);
		C(clock);
#undef C
 
		drm_mode_set_crtcinfo(adjusted_mode, 0);
	}
 
	return true;
}
 
static void intel_dvo_pre_enable(struct intel_encoder *encoder)
{
	struct drm_device *dev = encoder->base.dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);
	struct drm_display_mode *adjusted_mode = &crtc->config.adjusted_mode;
	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);
	int pipe = crtc->pipe;
	u32 dvo_val;
	u32 dvo_reg = intel_dvo->dev.dvo_reg, dvo_srcdim_reg;
 
	switch (dvo_reg) {
	case DVOA:
	default:
		dvo_srcdim_reg = DVOA_SRCDIM;
		break;
	case DVOB:
		dvo_srcdim_reg = DVOB_SRCDIM;
		break;
	case DVOC:
		dvo_srcdim_reg = DVOC_SRCDIM;
		break;
	}
 
	/* Save the data order, since I don't know what it should be set to. */
	dvo_val = I915_READ(dvo_reg) &
		  (DVO_PRESERVE_MASK | DVO_DATA_ORDER_GBRG);
	dvo_val |= DVO_DATA_ORDER_FP | DVO_BORDER_ENABLE |
		   DVO_BLANK_ACTIVE_HIGH;
 
	if (pipe == 1)
		dvo_val |= DVO_PIPE_B_SELECT;
	dvo_val |= DVO_PIPE_STALL;
	if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
		dvo_val |= DVO_HSYNC_ACTIVE_HIGH;
	if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
		dvo_val |= DVO_VSYNC_ACTIVE_HIGH;
 
	/*I915_WRITE(DVOB_SRCDIM,
	  (adjusted_mode->hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) |
	  (adjusted_mode->VDisplay << DVO_SRCDIM_VERTICAL_SHIFT));*/
	I915_WRITE(dvo_srcdim_reg,
		   (adjusted_mode->hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) |
		   (adjusted_mode->vdisplay << DVO_SRCDIM_VERTICAL_SHIFT));
	/*I915_WRITE(DVOB, dvo_val);*/
	I915_WRITE(dvo_reg, dvo_val);
}
 
/**
 * Detect the output connection on our DVO device.
 *
 * Unimplemented.
 */
static enum drm_connector_status
intel_dvo_detect(struct drm_connector *connector, bool force)
{
	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
	DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
		      connector->base.id, connector->name);
	return intel_dvo->dev.dev_ops->detect(&intel_dvo->dev);
}
 
static int intel_dvo_get_modes(struct drm_connector *connector)
{
	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
	struct drm_i915_private *dev_priv = connector->dev->dev_private;
 
	/* We should probably have an i2c driver get_modes function for those
	 * devices which will have a fixed set of modes determined by the chip
	 * (TV-out, for example), but for now with just TMDS and LVDS,
	 * that's not the case.
	 */
	intel_ddc_get_modes(connector,
			    intel_gmbus_get_adapter(dev_priv, GMBUS_PORT_DPC));
	if (!list_empty(&connector->probed_modes))
		return 1;
 
	if (intel_dvo->panel_fixed_mode != NULL) {
		struct drm_display_mode *mode;
		mode = drm_mode_duplicate(connector->dev, intel_dvo->panel_fixed_mode);
		if (mode) {
			drm_mode_probed_add(connector, mode);
			return 1;
		}
	}
 
	return 0;
}
 
static void intel_dvo_destroy(struct drm_connector *connector)
{
	drm_connector_cleanup(connector);
	kfree(connector);
}
 
static const struct drm_connector_funcs intel_dvo_connector_funcs = {
	.dpms = intel_dvo_dpms,
	.detect = intel_dvo_detect,
	.destroy = intel_dvo_destroy,
	.fill_modes = drm_helper_probe_single_connector_modes,
};
 
static const struct drm_connector_helper_funcs intel_dvo_connector_helper_funcs = {
	.mode_valid = intel_dvo_mode_valid,
	.get_modes = intel_dvo_get_modes,
	.best_encoder = intel_best_encoder,
};
 
static void intel_dvo_enc_destroy(struct drm_encoder *encoder)
{
	struct intel_dvo *intel_dvo = enc_to_dvo(to_intel_encoder(encoder));
 
	if (intel_dvo->dev.dev_ops->destroy)
		intel_dvo->dev.dev_ops->destroy(&intel_dvo->dev);
 
	kfree(intel_dvo->panel_fixed_mode);
 
	intel_encoder_destroy(encoder);
}
 
static const struct drm_encoder_funcs intel_dvo_enc_funcs = {
	.destroy = intel_dvo_enc_destroy,
};
 
/**
 * Attempts to get a fixed panel timing for LVDS (currently only the i830).
 *
 * Other chips with DVO LVDS will need to extend this to deal with the LVDS
 * chip being on DVOB/C and having multiple pipes.
 */
static struct drm_display_mode *
intel_dvo_get_current_mode(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
	uint32_t dvo_val = I915_READ(intel_dvo->dev.dvo_reg);
	struct drm_display_mode *mode = NULL;
 
	/* If the DVO port is active, that'll be the LVDS, so we can pull out
	 * its timings to get how the BIOS set up the panel.
	 */
	if (dvo_val & DVO_ENABLE) {
		struct drm_crtc *crtc;
		int pipe = (dvo_val & DVO_PIPE_B_SELECT) ? 1 : 0;
 
		crtc = intel_get_crtc_for_pipe(dev, pipe);
		if (crtc) {
			mode = intel_crtc_mode_get(dev, crtc);
			if (mode) {
				mode->type |= DRM_MODE_TYPE_PREFERRED;
				if (dvo_val & DVO_HSYNC_ACTIVE_HIGH)
					mode->flags |= DRM_MODE_FLAG_PHSYNC;
				if (dvo_val & DVO_VSYNC_ACTIVE_HIGH)
					mode->flags |= DRM_MODE_FLAG_PVSYNC;
			}
		}
	}
 
	return mode;
}
 
void intel_dvo_init(struct drm_device *dev)
{
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct intel_encoder *intel_encoder;
	struct intel_dvo *intel_dvo;
	struct intel_connector *intel_connector;
	int i;
	int encoder_type = DRM_MODE_ENCODER_NONE;
 
	intel_dvo = kzalloc(sizeof(*intel_dvo), GFP_KERNEL);
	if (!intel_dvo)
		return;
 
	intel_connector = kzalloc(sizeof(*intel_connector), GFP_KERNEL);
	if (!intel_connector) {
		kfree(intel_dvo);
		return;
	}
 
	intel_encoder = &intel_dvo->base;
	drm_encoder_init(dev, &intel_encoder->base,
			 &intel_dvo_enc_funcs, encoder_type);
 
	intel_encoder->disable = intel_disable_dvo;
	intel_encoder->enable = intel_enable_dvo;
	intel_encoder->get_hw_state = intel_dvo_get_hw_state;
	intel_encoder->get_config = intel_dvo_get_config;
	intel_encoder->compute_config = intel_dvo_compute_config;
	intel_encoder->pre_enable = intel_dvo_pre_enable;
	intel_connector->get_hw_state = intel_dvo_connector_get_hw_state;
	intel_connector->unregister = intel_connector_unregister;
 
	/* Now, try to find a controller */
	for (i = 0; i < ARRAY_SIZE(intel_dvo_devices); i++) {
		struct drm_connector *connector = &intel_connector->base;
		const struct intel_dvo_device *dvo = &intel_dvo_devices[i];
		struct i2c_adapter *i2c;
		int gpio;
		bool dvoinit;
 
		/* Allow the I2C driver info to specify the GPIO to be used in
		 * special cases, but otherwise default to what's defined
		 * in the spec.
		 */
		if (intel_gmbus_is_port_valid(dvo->gpio))
			gpio = dvo->gpio;
		else if (dvo->type == INTEL_DVO_CHIP_LVDS)
			gpio = GMBUS_PORT_SSC;
		else
			gpio = GMBUS_PORT_DPB;
 
		/* Set up the I2C bus necessary for the chip we're probing.
		 * It appears that everything is on GPIOE except for panels
		 * on i830 laptops, which are on GPIOB (DVOA).
		 */
		i2c = intel_gmbus_get_adapter(dev_priv, gpio);
 
		intel_dvo->dev = *dvo;
 
		/* GMBUS NAK handling seems to be unstable, hence let the
		 * transmitter detection run in bit banging mode for now.
		 */
		intel_gmbus_force_bit(i2c, true);
 
		dvoinit = dvo->dev_ops->init(&intel_dvo->dev, i2c);
 
		intel_gmbus_force_bit(i2c, false);
 
		if (!dvoinit)
			continue;
 
		intel_encoder->type = INTEL_OUTPUT_DVO;
		intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
		switch (dvo->type) {
		case INTEL_DVO_CHIP_TMDS:
			intel_encoder->cloneable = (1 << INTEL_OUTPUT_ANALOG) |
				(1 << INTEL_OUTPUT_DVO);
			drm_connector_init(dev, connector,
					   &intel_dvo_connector_funcs,
					   DRM_MODE_CONNECTOR_DVII);
			encoder_type = DRM_MODE_ENCODER_TMDS;
			break;
		case INTEL_DVO_CHIP_LVDS:
			intel_encoder->cloneable = 0;
			drm_connector_init(dev, connector,
					   &intel_dvo_connector_funcs,
					   DRM_MODE_CONNECTOR_LVDS);
			encoder_type = DRM_MODE_ENCODER_LVDS;
			break;
		}
 
		drm_connector_helper_add(connector,
					 &intel_dvo_connector_helper_funcs);
		connector->display_info.subpixel_order = SubPixelHorizontalRGB;
		connector->interlace_allowed = false;
		connector->doublescan_allowed = false;
 
		intel_connector_attach_encoder(intel_connector, intel_encoder);
		if (dvo->type == INTEL_DVO_CHIP_LVDS) {
			/* For our LVDS chipsets, we should hopefully be able
			 * to dig the fixed panel mode out of the BIOS data.
			 * However, it's in a different format from the BIOS
			 * data on chipsets with integrated LVDS (stored in AIM
			 * headers, likely), so for now, just get the current
			 * mode being output through DVO.
			 */
			intel_dvo->panel_fixed_mode =
				intel_dvo_get_current_mode(connector);
			intel_dvo->panel_wants_dither = true;
		}
 
		drm_connector_register(connector);
		return;
	}
 
	drm_encoder_cleanup(&intel_encoder->base);
	kfree(intel_dvo);
	kfree(intel_connector);
}

Rev 4560	Rev 5060
1	/*	1	/*
2	* Copyright 2006 Dave Airlie	2	* Copyright 2006 Dave Airlie
3	* Copyright © 2006-2007 Intel Corporation	3	* Copyright © 2006-2007 Intel Corporation
4	*	4	*
5	* Permission is hereby granted, free of charge, to any person obtaining a	5	* Permission is hereby granted, free of charge, to any person obtaining a
6	* copy of this software and associated documentation files (the "Software"),	6	* copy of this software and associated documentation files (the "Software"),
7	* to deal in the Software without restriction, including without limitation	7	* to deal in the Software without restriction, including without limitation
8	* the rights to use, copy, modify, merge, publish, distribute, sublicense,	8	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
9	* and/or sell copies of the Software, and to permit persons to whom the	9	* and/or sell copies of the Software, and to permit persons to whom the
10	* Software is furnished to do so, subject to the following conditions:	10	* Software is furnished to do so, subject to the following conditions:
11	*	11	*
12	* The above copyright notice and this permission notice (including the next	12	* The above copyright notice and this permission notice (including the next
13	* paragraph) shall be included in all copies or substantial portions of the	13	* paragraph) shall be included in all copies or substantial portions of the
14	* Software.	14	* Software.
15	*	15	*
16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER	21	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22	* DEALINGS IN THE SOFTWARE.	22	* DEALINGS IN THE SOFTWARE.
23	*	23	*
24	* Authors:	24	* Authors:
25	* Eric Anholt	25	* Eric Anholt
26	*/	26	*/
27	#include	27	#include
28	#include	28	#include
29	#include	29	#include
30	#include	30	#include
31	#include "intel_drv.h"	31	#include "intel_drv.h"
32	#include	32	#include
33	#include "i915_drv.h"	33	#include "i915_drv.h"
34	#include "dvo.h"	34	#include "dvo.h"
35		35
36	#define SIL164_ADDR 0x38	36	#define SIL164_ADDR 0x38
37	#define CH7xxx_ADDR 0x76	37	#define CH7xxx_ADDR 0x76
38	#define TFP410_ADDR 0x38	38	#define TFP410_ADDR 0x38
39	#define NS2501_ADDR 0x38	39	#define NS2501_ADDR 0x38
40		40
41	static const struct intel_dvo_device intel_dvo_devices[] = {	41	static const struct intel_dvo_device intel_dvo_devices[] = {
42	{	42	{
43	.type = INTEL_DVO_CHIP_TMDS,	43	.type = INTEL_DVO_CHIP_TMDS,
44	.name = "sil164",	44	.name = "sil164",
45	.dvo_reg = DVOC,	45	.dvo_reg = DVOC,
46	.slave_addr = SIL164_ADDR,	46	.slave_addr = SIL164_ADDR,
47	.dev_ops = &sil164_ops,	47	.dev_ops = &sil164_ops,
48	},	48	},
49	{	49	{
50	.type = INTEL_DVO_CHIP_TMDS,	50	.type = INTEL_DVO_CHIP_TMDS,
51	.name = "ch7xxx",	51	.name = "ch7xxx",
52	.dvo_reg = DVOC,	52	.dvo_reg = DVOC,
53	.slave_addr = CH7xxx_ADDR,	53	.slave_addr = CH7xxx_ADDR,
54	.dev_ops = &ch7xxx_ops,	54	.dev_ops = &ch7xxx_ops,
55	},	55	},
56	{	56	{
57	.type = INTEL_DVO_CHIP_TMDS,	57	.type = INTEL_DVO_CHIP_TMDS,
58	.name = "ch7xxx",	58	.name = "ch7xxx",
59	.dvo_reg = DVOC,	59	.dvo_reg = DVOC,
60	.slave_addr = 0x75, /* For some ch7010 */	60	.slave_addr = 0x75, /* For some ch7010 */
61	.dev_ops = &ch7xxx_ops,	61	.dev_ops = &ch7xxx_ops,
62	},	62	},
63	{	63	{
64	.type = INTEL_DVO_CHIP_LVDS,	64	.type = INTEL_DVO_CHIP_LVDS,
65	.name = "ivch",	65	.name = "ivch",
66	.dvo_reg = DVOA,	66	.dvo_reg = DVOA,
67	.slave_addr = 0x02, /* Might also be 0x44, 0x84, 0xc4 */	67	.slave_addr = 0x02, /* Might also be 0x44, 0x84, 0xc4 */
68	.dev_ops = &ivch_ops,	68	.dev_ops = &ivch_ops,
69	},	69	},
70	{	70	{
71	.type = INTEL_DVO_CHIP_TMDS,	71	.type = INTEL_DVO_CHIP_TMDS,
72	.name = "tfp410",	72	.name = "tfp410",
73	.dvo_reg = DVOC,	73	.dvo_reg = DVOC,
74	.slave_addr = TFP410_ADDR,	74	.slave_addr = TFP410_ADDR,
75	.dev_ops = &tfp410_ops,	75	.dev_ops = &tfp410_ops,
76	},	76	},
77	{	77	{
78	.type = INTEL_DVO_CHIP_LVDS,	78	.type = INTEL_DVO_CHIP_LVDS,
79	.name = "ch7017",	79	.name = "ch7017",
80	.dvo_reg = DVOC,	80	.dvo_reg = DVOC,
81	.slave_addr = 0x75,	81	.slave_addr = 0x75,
82	.gpio = GMBUS_PORT_DPB,	82	.gpio = GMBUS_PORT_DPB,
83	.dev_ops = &ch7017_ops,	83	.dev_ops = &ch7017_ops,
84	},	84	},
85	{	85	{
86	.type = INTEL_DVO_CHIP_TMDS,	86	.type = INTEL_DVO_CHIP_TMDS,
87	.name = "ns2501",	87	.name = "ns2501",
88	.dvo_reg = DVOC,	88	.dvo_reg = DVOC,
89	.slave_addr = NS2501_ADDR,	89	.slave_addr = NS2501_ADDR,
90	.dev_ops = &ns2501_ops,	90	.dev_ops = &ns2501_ops,
91	}	91	}
92	};	92	};
93		93
94	struct intel_dvo {	94	struct intel_dvo {
95	struct intel_encoder base;	95	struct intel_encoder base;
96		96
97	struct intel_dvo_device dev;	97	struct intel_dvo_device dev;
98		98
99	struct drm_display_mode *panel_fixed_mode;	99	struct drm_display_mode *panel_fixed_mode;
100	bool panel_wants_dither;	100	bool panel_wants_dither;
101	};	101	};
102		102
103	static struct intel_dvo enc_to_dvo(struct intel_encoder encoder)	103	static struct intel_dvo enc_to_dvo(struct intel_encoder encoder)
104	{	104	{
105	return container_of(encoder, struct intel_dvo, base);	105	return container_of(encoder, struct intel_dvo, base);
106	}	106	}
107		107
108	static struct intel_dvo intel_attached_dvo(struct drm_connector connector)	108	static struct intel_dvo intel_attached_dvo(struct drm_connector connector)
109	{	109	{
110	return enc_to_dvo(intel_attached_encoder(connector));	110	return enc_to_dvo(intel_attached_encoder(connector));
111	}	111	}
112		112
113	static bool intel_dvo_connector_get_hw_state(struct intel_connector *connector)	113	static bool intel_dvo_connector_get_hw_state(struct intel_connector *connector)
114	{	114	{
-		115	struct drm_device *dev = connector->base.dev;
-		116	struct drm_i915_private *dev_priv = dev->dev_private;
115	struct intel_dvo *intel_dvo = intel_attached_dvo(&connector->base);	117	struct intel_dvo *intel_dvo = intel_attached_dvo(&connector->base);
-		118	u32 tmp;
-		119
-		120	tmp = I915_READ(intel_dvo->dev.dvo_reg);
-		121
-		122	if (!(tmp & DVO_ENABLE))
-		123	return false;
116		124
117	return intel_dvo->dev.dev_ops->get_hw_state(&intel_dvo->dev);	125	return intel_dvo->dev.dev_ops->get_hw_state(&intel_dvo->dev);
118	}	126	}
119		127
120	static bool intel_dvo_get_hw_state(struct intel_encoder *encoder,	128	static bool intel_dvo_get_hw_state(struct intel_encoder *encoder,
121	enum pipe *pipe)	129	enum pipe *pipe)
122	{	130	{
123	struct drm_device *dev = encoder->base.dev;	131	struct drm_device *dev = encoder->base.dev;
124	struct drm_i915_private *dev_priv = dev->dev_private;	132	struct drm_i915_private *dev_priv = dev->dev_private;
125	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);	133	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);
126	u32 tmp;	134	u32 tmp;
127		135
128	tmp = I915_READ(intel_dvo->dev.dvo_reg);	136	tmp = I915_READ(intel_dvo->dev.dvo_reg);
129		137
130	if (!(tmp & DVO_ENABLE))	138	if (!(tmp & DVO_ENABLE))
131	return false;	139	return false;
132		140
133	*pipe = PORT_TO_PIPE(tmp);	141	*pipe = PORT_TO_PIPE(tmp);
134		142
135	return true;	143	return true;
136	}	144	}
137		145
138	static void intel_dvo_get_config(struct intel_encoder *encoder,	146	static void intel_dvo_get_config(struct intel_encoder *encoder,
139	struct intel_crtc_config *pipe_config)	147	struct intel_crtc_config *pipe_config)
140	{	148	{
141	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;	149	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
142	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);	150	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);
143	u32 tmp, flags = 0;	151	u32 tmp, flags = 0;
144		152
145	tmp = I915_READ(intel_dvo->dev.dvo_reg);	153	tmp = I915_READ(intel_dvo->dev.dvo_reg);
146	if (tmp & DVO_HSYNC_ACTIVE_HIGH)	154	if (tmp & DVO_HSYNC_ACTIVE_HIGH)
147	flags \|= DRM_MODE_FLAG_PHSYNC;	155	flags \|= DRM_MODE_FLAG_PHSYNC;
148	else	156	else
149	flags \|= DRM_MODE_FLAG_NHSYNC;	157	flags \|= DRM_MODE_FLAG_NHSYNC;
150	if (tmp & DVO_VSYNC_ACTIVE_HIGH)	158	if (tmp & DVO_VSYNC_ACTIVE_HIGH)
151	flags \|= DRM_MODE_FLAG_PVSYNC;	159	flags \|= DRM_MODE_FLAG_PVSYNC;
152	else	160	else
153	flags \|= DRM_MODE_FLAG_NVSYNC;	161	flags \|= DRM_MODE_FLAG_NVSYNC;
154		162
155	pipe_config->adjusted_mode.flags \|= flags;	163	pipe_config->adjusted_mode.flags \|= flags;
156		164
157	pipe_config->adjusted_mode.crtc_clock = pipe_config->port_clock;	165	pipe_config->adjusted_mode.crtc_clock = pipe_config->port_clock;
158	}	166	}
159		167
160	static void intel_disable_dvo(struct intel_encoder *encoder)	168	static void intel_disable_dvo(struct intel_encoder *encoder)
161	{	169	{
162	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;	170	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
163	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);	171	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);
164	u32 dvo_reg = intel_dvo->dev.dvo_reg;	172	u32 dvo_reg = intel_dvo->dev.dvo_reg;
165	u32 temp = I915_READ(dvo_reg);	173	u32 temp = I915_READ(dvo_reg);
166		174
167	intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, false);	175	intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, false);
168	I915_WRITE(dvo_reg, temp & ~DVO_ENABLE);	176	I915_WRITE(dvo_reg, temp & ~DVO_ENABLE);
169	I915_READ(dvo_reg);	177	I915_READ(dvo_reg);
170	}	178	}
171		179
172	static void intel_enable_dvo(struct intel_encoder *encoder)	180	static void intel_enable_dvo(struct intel_encoder *encoder)
173	{	181	{
174	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;	182	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
175	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);	183	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);
176	struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);	184	struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);
177	u32 dvo_reg = intel_dvo->dev.dvo_reg;	185	u32 dvo_reg = intel_dvo->dev.dvo_reg;
178	u32 temp = I915_READ(dvo_reg);	186	u32 temp = I915_READ(dvo_reg);
179		187
180	I915_WRITE(dvo_reg, temp \| DVO_ENABLE);	188	I915_WRITE(dvo_reg, temp \| DVO_ENABLE);
181	I915_READ(dvo_reg);	189	I915_READ(dvo_reg);
182	intel_dvo->dev.dev_ops->mode_set(&intel_dvo->dev,	190	intel_dvo->dev.dev_ops->mode_set(&intel_dvo->dev,
183	&crtc->config.requested_mode,	191	&crtc->config.requested_mode,
184	&crtc->config.adjusted_mode);	192	&crtc->config.adjusted_mode);
185		193
186	intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, true);	194	intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, true);
187	}	195	}
188		196
189	/* Special dpms function to support cloning between dvo/sdvo/crt. */	197	/* Special dpms function to support cloning between dvo/sdvo/crt. */
190	static void intel_dvo_dpms(struct drm_connector *connector, int mode)	198	static void intel_dvo_dpms(struct drm_connector *connector, int mode)
191	{	199	{
192	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);	200	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
193	struct drm_crtc *crtc;	201	struct drm_crtc *crtc;
194	struct intel_crtc_config *config;	202	struct intel_crtc_config *config;
195		203
196	/* dvo supports only 2 dpms states. */	204	/* dvo supports only 2 dpms states. */
197	if (mode != DRM_MODE_DPMS_ON)	205	if (mode != DRM_MODE_DPMS_ON)
198	mode = DRM_MODE_DPMS_OFF;	206	mode = DRM_MODE_DPMS_OFF;
199		207
200	if (mode == connector->dpms)	208	if (mode == connector->dpms)
201	return;	209	return;
202		210
203	connector->dpms = mode;	211	connector->dpms = mode;
204		212
205	/* Only need to change hw state when actually enabled */	213	/* Only need to change hw state when actually enabled */
206	crtc = intel_dvo->base.base.crtc;	214	crtc = intel_dvo->base.base.crtc;
207	if (!crtc) {	215	if (!crtc) {
208	intel_dvo->base.connectors_active = false;	216	intel_dvo->base.connectors_active = false;
209	return;	217	return;
210	}	218	}
211		219
212	/* We call connector dpms manually below in case pipe dpms doesn't	220	/* We call connector dpms manually below in case pipe dpms doesn't
213	* change due to cloning. */	221	* change due to cloning. */
214	if (mode == DRM_MODE_DPMS_ON) {	222	if (mode == DRM_MODE_DPMS_ON) {
215	config = &to_intel_crtc(crtc)->config;	223	config = &to_intel_crtc(crtc)->config;
216		224
217	intel_dvo->base.connectors_active = true;	225	intel_dvo->base.connectors_active = true;
218		226
219	intel_crtc_update_dpms(crtc);	227	intel_crtc_update_dpms(crtc);
220		228
221	intel_dvo->dev.dev_ops->mode_set(&intel_dvo->dev,	229	intel_dvo->dev.dev_ops->mode_set(&intel_dvo->dev,
222	&config->requested_mode,	230	&config->requested_mode,
223	&config->adjusted_mode);	231	&config->adjusted_mode);
224		232
225	intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, true);	233	intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, true);
226	} else {	234	} else {
227	intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, false);	235	intel_dvo->dev.dev_ops->dpms(&intel_dvo->dev, false);
228		236
229	intel_dvo->base.connectors_active = false;	237	intel_dvo->base.connectors_active = false;
230		238
231	intel_crtc_update_dpms(crtc);	239	intel_crtc_update_dpms(crtc);
232	}	240	}
233		241
234	intel_modeset_check_state(connector->dev);	242	intel_modeset_check_state(connector->dev);
235	}	243	}
236		244
237	static enum drm_mode_status	245	static enum drm_mode_status
238	intel_dvo_mode_valid(struct drm_connector *connector,	246	intel_dvo_mode_valid(struct drm_connector *connector,
239	struct drm_display_mode *mode)	247	struct drm_display_mode *mode)
240	{	248	{
241	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);	249	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
242		250
243	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)	251	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
244	return MODE_NO_DBLESCAN;	252	return MODE_NO_DBLESCAN;
245		253
246	/* XXX: Validate clock range */	254	/* XXX: Validate clock range */
247		255
248	if (intel_dvo->panel_fixed_mode) {	256	if (intel_dvo->panel_fixed_mode) {
249	if (mode->hdisplay > intel_dvo->panel_fixed_mode->hdisplay)	257	if (mode->hdisplay > intel_dvo->panel_fixed_mode->hdisplay)
250	return MODE_PANEL;	258	return MODE_PANEL;
251	if (mode->vdisplay > intel_dvo->panel_fixed_mode->vdisplay)	259	if (mode->vdisplay > intel_dvo->panel_fixed_mode->vdisplay)
252	return MODE_PANEL;	260	return MODE_PANEL;
253	}	261	}
254		262
255	return intel_dvo->dev.dev_ops->mode_valid(&intel_dvo->dev, mode);	263	return intel_dvo->dev.dev_ops->mode_valid(&intel_dvo->dev, mode);
256	}	264	}
257		265
258	static bool intel_dvo_compute_config(struct intel_encoder *encoder,	266	static bool intel_dvo_compute_config(struct intel_encoder *encoder,
259	struct intel_crtc_config *pipe_config)	267	struct intel_crtc_config *pipe_config)
260	{	268	{
261	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);	269	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);
262	struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;	270	struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode;
263		271
264	/* If we have timings from the BIOS for the panel, put them in	272	/* If we have timings from the BIOS for the panel, put them in
265	* to the adjusted mode. The CRTC will be set up for this mode,	273	* to the adjusted mode. The CRTC will be set up for this mode,
266	* with the panel scaling set up to source from the H/VDisplay	274	* with the panel scaling set up to source from the H/VDisplay
267	* of the original mode.	275	* of the original mode.
268	*/	276	*/
269	if (intel_dvo->panel_fixed_mode != NULL) {	277	if (intel_dvo->panel_fixed_mode != NULL) {
270	#define C(x) adjusted_mode->x = intel_dvo->panel_fixed_mode->x	278	#define C(x) adjusted_mode->x = intel_dvo->panel_fixed_mode->x
271	C(hdisplay);	279	C(hdisplay);
272	C(hsync_start);	280	C(hsync_start);
273	C(hsync_end);	281	C(hsync_end);
274	C(htotal);	282	C(htotal);
275	C(vdisplay);	283	C(vdisplay);
276	C(vsync_start);	284	C(vsync_start);
277	C(vsync_end);	285	C(vsync_end);
278	C(vtotal);	286	C(vtotal);
279	C(clock);	287	C(clock);
280	#undef C	288	#undef C
281		289
282	drm_mode_set_crtcinfo(adjusted_mode, 0);	290	drm_mode_set_crtcinfo(adjusted_mode, 0);
283	}	291	}
284		292
285	return true;	293	return true;
286	}	294	}
287		295
288	static void intel_dvo_mode_set(struct intel_encoder *encoder)	296	static void intel_dvo_pre_enable(struct intel_encoder *encoder)
289	{	297	{
290	struct drm_device *dev = encoder->base.dev;	298	struct drm_device *dev = encoder->base.dev;
291	struct drm_i915_private *dev_priv = dev->dev_private;	299	struct drm_i915_private *dev_priv = dev->dev_private;
292	struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);	300	struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);
293	struct drm_display_mode *adjusted_mode = &crtc->config.adjusted_mode;	301	struct drm_display_mode *adjusted_mode = &crtc->config.adjusted_mode;
294	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);	302	struct intel_dvo *intel_dvo = enc_to_dvo(encoder);
295	int pipe = crtc->pipe;	303	int pipe = crtc->pipe;
296	u32 dvo_val;	304	u32 dvo_val;
297	u32 dvo_reg = intel_dvo->dev.dvo_reg, dvo_srcdim_reg;	305	u32 dvo_reg = intel_dvo->dev.dvo_reg, dvo_srcdim_reg;
298		306
299	switch (dvo_reg) {	307	switch (dvo_reg) {
300	case DVOA:	308	case DVOA:
301	default:	309	default:
302	dvo_srcdim_reg = DVOA_SRCDIM;	310	dvo_srcdim_reg = DVOA_SRCDIM;
303	break;	311	break;
304	case DVOB:	312	case DVOB:
305	dvo_srcdim_reg = DVOB_SRCDIM;	313	dvo_srcdim_reg = DVOB_SRCDIM;
306	break;	314	break;
307	case DVOC:	315	case DVOC:
308	dvo_srcdim_reg = DVOC_SRCDIM;	316	dvo_srcdim_reg = DVOC_SRCDIM;
309	break;	317	break;
310	}	318	}
311		319
312	/* Save the data order, since I don't know what it should be set to. */	320	/* Save the data order, since I don't know what it should be set to. */
313	dvo_val = I915_READ(dvo_reg) &	321	dvo_val = I915_READ(dvo_reg) &
314	(DVO_PRESERVE_MASK \| DVO_DATA_ORDER_GBRG);	322	(DVO_PRESERVE_MASK \| DVO_DATA_ORDER_GBRG);
315	dvo_val \|= DVO_DATA_ORDER_FP \| DVO_BORDER_ENABLE \|	323	dvo_val \|= DVO_DATA_ORDER_FP \| DVO_BORDER_ENABLE \|
316	DVO_BLANK_ACTIVE_HIGH;	324	DVO_BLANK_ACTIVE_HIGH;
317		325
318	if (pipe == 1)	326	if (pipe == 1)
319	dvo_val \|= DVO_PIPE_B_SELECT;	327	dvo_val \|= DVO_PIPE_B_SELECT;
320	dvo_val \|= DVO_PIPE_STALL;	328	dvo_val \|= DVO_PIPE_STALL;
321	if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)	329	if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
322	dvo_val \|= DVO_HSYNC_ACTIVE_HIGH;	330	dvo_val \|= DVO_HSYNC_ACTIVE_HIGH;
323	if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)	331	if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
324	dvo_val \|= DVO_VSYNC_ACTIVE_HIGH;	332	dvo_val \|= DVO_VSYNC_ACTIVE_HIGH;
325		333
326	/*I915_WRITE(DVOB_SRCDIM,	334	/*I915_WRITE(DVOB_SRCDIM,
327	(adjusted_mode->hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) \|	335	(adjusted_mode->hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) \|
328	(adjusted_mode->VDisplay << DVO_SRCDIM_VERTICAL_SHIFT));*/	336	(adjusted_mode->VDisplay << DVO_SRCDIM_VERTICAL_SHIFT));*/
329	I915_WRITE(dvo_srcdim_reg,	337	I915_WRITE(dvo_srcdim_reg,
330	(adjusted_mode->hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) \|	338	(adjusted_mode->hdisplay << DVO_SRCDIM_HORIZONTAL_SHIFT) \|
331	(adjusted_mode->vdisplay << DVO_SRCDIM_VERTICAL_SHIFT));	339	(adjusted_mode->vdisplay << DVO_SRCDIM_VERTICAL_SHIFT));
332	/I915_WRITE(DVOB, dvo_val);/	340	/I915_WRITE(DVOB, dvo_val);/
333	I915_WRITE(dvo_reg, dvo_val);	341	I915_WRITE(dvo_reg, dvo_val);
334	}	342	}
335		343
336	/**	344	/**
337	* Detect the output connection on our DVO device.	345	* Detect the output connection on our DVO device.
338	*	346	*
339	* Unimplemented.	347	* Unimplemented.
340	*/	348	*/
341	static enum drm_connector_status	349	static enum drm_connector_status
342	intel_dvo_detect(struct drm_connector *connector, bool force)	350	intel_dvo_detect(struct drm_connector *connector, bool force)
343	{	351	{
344	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);	352	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
345	DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",	353	DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
346	connector->base.id, drm_get_connector_name(connector));	354	connector->base.id, connector->name);
347	return intel_dvo->dev.dev_ops->detect(&intel_dvo->dev);	355	return intel_dvo->dev.dev_ops->detect(&intel_dvo->dev);
348	}	356	}
349		357
350	static int intel_dvo_get_modes(struct drm_connector *connector)	358	static int intel_dvo_get_modes(struct drm_connector *connector)
351	{	359	{
352	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);	360	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
353	struct drm_i915_private *dev_priv = connector->dev->dev_private;	361	struct drm_i915_private *dev_priv = connector->dev->dev_private;
354		362
355	/* We should probably have an i2c driver get_modes function for those	363	/* We should probably have an i2c driver get_modes function for those
356	* devices which will have a fixed set of modes determined by the chip	364	* devices which will have a fixed set of modes determined by the chip
357	* (TV-out, for example), but for now with just TMDS and LVDS,	365	* (TV-out, for example), but for now with just TMDS and LVDS,
358	* that's not the case.	366	* that's not the case.
359	*/	367	*/
360	intel_ddc_get_modes(connector,	368	intel_ddc_get_modes(connector,
361	intel_gmbus_get_adapter(dev_priv, GMBUS_PORT_DPC));	369	intel_gmbus_get_adapter(dev_priv, GMBUS_PORT_DPC));
362	if (!list_empty(&connector->probed_modes))	370	if (!list_empty(&connector->probed_modes))
363	return 1;	371	return 1;
364		372
365	if (intel_dvo->panel_fixed_mode != NULL) {	373	if (intel_dvo->panel_fixed_mode != NULL) {
366	struct drm_display_mode *mode;	374	struct drm_display_mode *mode;
367	mode = drm_mode_duplicate(connector->dev, intel_dvo->panel_fixed_mode);	375	mode = drm_mode_duplicate(connector->dev, intel_dvo->panel_fixed_mode);
368	if (mode) {	376	if (mode) {
369	drm_mode_probed_add(connector, mode);	377	drm_mode_probed_add(connector, mode);
370	return 1;	378	return 1;
371	}	379	}
372	}	380	}
373		381
374	return 0;	382	return 0;
375	}	383	}
376		384
377	static void intel_dvo_destroy(struct drm_connector *connector)	385	static void intel_dvo_destroy(struct drm_connector *connector)
378	{	386	{
379	drm_connector_cleanup(connector);	387	drm_connector_cleanup(connector);
380	kfree(connector);	388	kfree(connector);
381	}	389	}
382		390
383	static const struct drm_connector_funcs intel_dvo_connector_funcs = {	391	static const struct drm_connector_funcs intel_dvo_connector_funcs = {
384	.dpms = intel_dvo_dpms,	392	.dpms = intel_dvo_dpms,
385	.detect = intel_dvo_detect,	393	.detect = intel_dvo_detect,
386	.destroy = intel_dvo_destroy,	394	.destroy = intel_dvo_destroy,
387	.fill_modes = drm_helper_probe_single_connector_modes,	395	.fill_modes = drm_helper_probe_single_connector_modes,
388	};	396	};
389		397
390	static const struct drm_connector_helper_funcs intel_dvo_connector_helper_funcs = {	398	static const struct drm_connector_helper_funcs intel_dvo_connector_helper_funcs = {
391	.mode_valid = intel_dvo_mode_valid,	399	.mode_valid = intel_dvo_mode_valid,
392	.get_modes = intel_dvo_get_modes,	400	.get_modes = intel_dvo_get_modes,
393	.best_encoder = intel_best_encoder,	401	.best_encoder = intel_best_encoder,
394	};	402	};
395		403
396	static void intel_dvo_enc_destroy(struct drm_encoder *encoder)	404	static void intel_dvo_enc_destroy(struct drm_encoder *encoder)
397	{	405	{
398	struct intel_dvo *intel_dvo = enc_to_dvo(to_intel_encoder(encoder));	406	struct intel_dvo *intel_dvo = enc_to_dvo(to_intel_encoder(encoder));
399		407
400	if (intel_dvo->dev.dev_ops->destroy)	408	if (intel_dvo->dev.dev_ops->destroy)
401	intel_dvo->dev.dev_ops->destroy(&intel_dvo->dev);	409	intel_dvo->dev.dev_ops->destroy(&intel_dvo->dev);
402		410
403	kfree(intel_dvo->panel_fixed_mode);	411	kfree(intel_dvo->panel_fixed_mode);
404		412
405	intel_encoder_destroy(encoder);	413	intel_encoder_destroy(encoder);
406	}	414	}
407		415
408	static const struct drm_encoder_funcs intel_dvo_enc_funcs = {	416	static const struct drm_encoder_funcs intel_dvo_enc_funcs = {
409	.destroy = intel_dvo_enc_destroy,	417	.destroy = intel_dvo_enc_destroy,
410	};	418	};
411		419
412	/**	420	/**
413	* Attempts to get a fixed panel timing for LVDS (currently only the i830).	421	* Attempts to get a fixed panel timing for LVDS (currently only the i830).
414	*	422	*
415	* Other chips with DVO LVDS will need to extend this to deal with the LVDS	423	* Other chips with DVO LVDS will need to extend this to deal with the LVDS
416	* chip being on DVOB/C and having multiple pipes.	424	* chip being on DVOB/C and having multiple pipes.
417	*/	425	*/
418	static struct drm_display_mode *	426	static struct drm_display_mode *
419	intel_dvo_get_current_mode(struct drm_connector *connector)	427	intel_dvo_get_current_mode(struct drm_connector *connector)
420	{	428	{
421	struct drm_device *dev = connector->dev;	429	struct drm_device *dev = connector->dev;
422	struct drm_i915_private *dev_priv = dev->dev_private;	430	struct drm_i915_private *dev_priv = dev->dev_private;
423	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);	431	struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
424	uint32_t dvo_val = I915_READ(intel_dvo->dev.dvo_reg);	432	uint32_t dvo_val = I915_READ(intel_dvo->dev.dvo_reg);
425	struct drm_display_mode *mode = NULL;	433	struct drm_display_mode *mode = NULL;
426		434
427	/* If the DVO port is active, that'll be the LVDS, so we can pull out	435	/* If the DVO port is active, that'll be the LVDS, so we can pull out
428	* its timings to get how the BIOS set up the panel.	436	* its timings to get how the BIOS set up the panel.
429	*/	437	*/
430	if (dvo_val & DVO_ENABLE) {	438	if (dvo_val & DVO_ENABLE) {
431	struct drm_crtc *crtc;	439	struct drm_crtc *crtc;
432	int pipe = (dvo_val & DVO_PIPE_B_SELECT) ? 1 : 0;	440	int pipe = (dvo_val & DVO_PIPE_B_SELECT) ? 1 : 0;
433		441
434	crtc = intel_get_crtc_for_pipe(dev, pipe);	442	crtc = intel_get_crtc_for_pipe(dev, pipe);
435	if (crtc) {	443	if (crtc) {
436	mode = intel_crtc_mode_get(dev, crtc);	444	mode = intel_crtc_mode_get(dev, crtc);
437	if (mode) {	445	if (mode) {
438	mode->type \|= DRM_MODE_TYPE_PREFERRED;	446	mode->type \|= DRM_MODE_TYPE_PREFERRED;
439	if (dvo_val & DVO_HSYNC_ACTIVE_HIGH)	447	if (dvo_val & DVO_HSYNC_ACTIVE_HIGH)
440	mode->flags \|= DRM_MODE_FLAG_PHSYNC;	448	mode->flags \|= DRM_MODE_FLAG_PHSYNC;
441	if (dvo_val & DVO_VSYNC_ACTIVE_HIGH)	449	if (dvo_val & DVO_VSYNC_ACTIVE_HIGH)
442	mode->flags \|= DRM_MODE_FLAG_PVSYNC;	450	mode->flags \|= DRM_MODE_FLAG_PVSYNC;
443	}	451	}
444	}	452	}
445	}	453	}
446		454
447	return mode;	455	return mode;
448	}	456	}
449		457
450	void intel_dvo_init(struct drm_device *dev)	458	void intel_dvo_init(struct drm_device *dev)
451	{	459	{
452	struct drm_i915_private *dev_priv = dev->dev_private;	460	struct drm_i915_private *dev_priv = dev->dev_private;
453	struct intel_encoder *intel_encoder;	461	struct intel_encoder *intel_encoder;
454	struct intel_dvo *intel_dvo;	462	struct intel_dvo *intel_dvo;
455	struct intel_connector *intel_connector;	463	struct intel_connector *intel_connector;
456	int i;	464	int i;
457	int encoder_type = DRM_MODE_ENCODER_NONE;	465	int encoder_type = DRM_MODE_ENCODER_NONE;
458		466
459	intel_dvo = kzalloc(sizeof(*intel_dvo), GFP_KERNEL);	467	intel_dvo = kzalloc(sizeof(*intel_dvo), GFP_KERNEL);
460	if (!intel_dvo)	468	if (!intel_dvo)
461	return;	469	return;
462		470
463	intel_connector = kzalloc(sizeof(*intel_connector), GFP_KERNEL);	471	intel_connector = kzalloc(sizeof(*intel_connector), GFP_KERNEL);
464	if (!intel_connector) {	472	if (!intel_connector) {
465	kfree(intel_dvo);	473	kfree(intel_dvo);
466	return;	474	return;
467	}	475	}
468		476
469	intel_encoder = &intel_dvo->base;	477	intel_encoder = &intel_dvo->base;
470	drm_encoder_init(dev, &intel_encoder->base,	478	drm_encoder_init(dev, &intel_encoder->base,
471	&intel_dvo_enc_funcs, encoder_type);	479	&intel_dvo_enc_funcs, encoder_type);
472		480
473	intel_encoder->disable = intel_disable_dvo;	481	intel_encoder->disable = intel_disable_dvo;
474	intel_encoder->enable = intel_enable_dvo;	482	intel_encoder->enable = intel_enable_dvo;
475	intel_encoder->get_hw_state = intel_dvo_get_hw_state;	483	intel_encoder->get_hw_state = intel_dvo_get_hw_state;
476	intel_encoder->get_config = intel_dvo_get_config;	484	intel_encoder->get_config = intel_dvo_get_config;
477	intel_encoder->compute_config = intel_dvo_compute_config;	485	intel_encoder->compute_config = intel_dvo_compute_config;
478	intel_encoder->mode_set = intel_dvo_mode_set;	486	intel_encoder->pre_enable = intel_dvo_pre_enable;
479	intel_connector->get_hw_state = intel_dvo_connector_get_hw_state;	487	intel_connector->get_hw_state = intel_dvo_connector_get_hw_state;
-		488	intel_connector->unregister = intel_connector_unregister;
480		489
481	/* Now, try to find a controller */	490	/* Now, try to find a controller */
482	for (i = 0; i < ARRAY_SIZE(intel_dvo_devices); i++) {	491	for (i = 0; i < ARRAY_SIZE(intel_dvo_devices); i++) {
483	struct drm_connector *connector = &intel_connector->base;	492	struct drm_connector *connector = &intel_connector->base;
484	const struct intel_dvo_device *dvo = &intel_dvo_devices[i];	493	const struct intel_dvo_device *dvo = &intel_dvo_devices[i];
485	struct i2c_adapter *i2c;	494	struct i2c_adapter *i2c;
486	int gpio;	495	int gpio;
487	bool dvoinit;	496	bool dvoinit;
488		497
489	/* Allow the I2C driver info to specify the GPIO to be used in	498	/* Allow the I2C driver info to specify the GPIO to be used in
490	* special cases, but otherwise default to what's defined	499	* special cases, but otherwise default to what's defined
491	* in the spec.	500	* in the spec.

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(root)/drivers/video/drm/i915/intel_dvo.c – Rev 4560 → 5060