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Date: Tue, 05 Jul 2011 18:45:40 +0100
From: Alan Cox <alan@...rguk.ukuu.org.uk>
To: greg@...ah.com, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] gma500: oops.. thou shalt stg add...
From: Alan Cox <alan@...ux.intel.com>
Signed-off-by: Alan Cox <alan@...ux.intel.com>
---
drivers/staging/gma500/cdv_device.h | 36 +++
drivers/staging/gma500/cdv_intel_crt.c | 323 +++++++++++++++++++++++++++
drivers/staging/gma500/cdv_intel_hdmi.c | 373 +++++++++++++++++++++++++++++++
3 files changed, 732 insertions(+), 0 deletions(-)
create mode 100644 drivers/staging/gma500/cdv_device.h
create mode 100644 drivers/staging/gma500/cdv_intel_crt.c
create mode 100644 drivers/staging/gma500/cdv_intel_hdmi.c
diff --git a/drivers/staging/gma500/cdv_device.h b/drivers/staging/gma500/cdv_device.h
new file mode 100644
index 0000000..2a88b7b
--- /dev/null
+++ b/drivers/staging/gma500/cdv_device.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+extern const struct drm_crtc_helper_funcs cdv_intel_helper_funcs;
+extern const struct drm_crtc_funcs cdv_intel_crtc_funcs;
+extern void cdv_intel_crt_init(struct drm_device *dev,
+ struct psb_intel_mode_device *mode_dev);
+extern void cdv_intel_lvds_init(struct drm_device *dev,
+ struct psb_intel_mode_device *mode_dev);
+extern void cdv_hdmi_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev,
+ int reg);
+extern struct drm_display_mode *cdv_intel_crtc_mode_get(struct drm_device *dev,
+ struct drm_crtc *crtc);
+
+extern inline void cdv_intel_wait_for_vblank(struct drm_device *dev)
+{
+ /* Wait for 20ms, i.e. one cycle at 50hz. */
+ /* FIXME: msleep ?? */
+ mdelay(20);
+}
+
+
diff --git a/drivers/staging/gma500/cdv_intel_crt.c b/drivers/staging/gma500/cdv_intel_crt.c
new file mode 100644
index 0000000..e26749c
--- /dev/null
+++ b/drivers/staging/gma500/cdv_intel_crt.c
@@ -0,0 +1,323 @@
+/*
+ * 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 <eric@...olt.net>
+ */
+
+#include <linux/i2c.h>
+#include <drm/drmP.h>
+
+#include "intel_bios.h"
+#include "psb_drv.h"
+#include "psb_intel_drv.h"
+#include "psb_intel_reg.h"
+#include "power.h"
+#include <linux/pm_runtime.h>
+
+
+static void cdv_intel_crt_dpms(struct drm_encoder *encoder, int mode)
+{
+ struct drm_device *dev = encoder->dev;
+ u32 temp, reg;
+ reg = ADPA;
+
+ temp = REG_READ(reg);
+ temp &= ~(ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE);
+ temp &= ~ADPA_DAC_ENABLE;
+
+ switch(mode) {
+ case DRM_MODE_DPMS_ON:
+ temp |= ADPA_DAC_ENABLE;
+ break;
+ case DRM_MODE_DPMS_STANDBY:
+ temp |= ADPA_DAC_ENABLE | ADPA_HSYNC_CNTL_DISABLE;
+ break;
+ case DRM_MODE_DPMS_SUSPEND:
+ temp |= ADPA_DAC_ENABLE | ADPA_VSYNC_CNTL_DISABLE;
+ break;
+ case DRM_MODE_DPMS_OFF:
+ temp |= ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE;
+ break;
+ }
+
+ REG_WRITE(reg, temp);
+}
+
+static int cdv_intel_crt_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ int max_clock = 0;
+ if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+ return MODE_NO_DBLESCAN;
+
+ /* The lowest clock for CDV is 20000KHz */
+ if (mode->clock < 20000)
+ return MODE_CLOCK_LOW;
+
+ /* The max clock for CDV is 355 instead of 400 */
+ max_clock = 355000;
+ if (mode->clock > max_clock)
+ return MODE_CLOCK_HIGH;
+
+ if (mode->hdisplay > 1680 || mode->vdisplay > 1050)
+ return MODE_PANEL;
+
+ return MODE_OK;
+}
+
+static bool cdv_intel_crt_mode_fixup(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ return true;
+}
+
+static void cdv_intel_crt_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+
+ struct drm_device *dev = encoder->dev;
+ struct drm_crtc *crtc = encoder->crtc;
+ struct psb_intel_crtc *psb_intel_crtc =
+ to_psb_intel_crtc(crtc);
+ int dpll_md_reg;
+ u32 adpa, dpll_md;
+ u32 adpa_reg;
+
+ if (psb_intel_crtc->pipe == 0)
+ dpll_md_reg = DPLL_A_MD;
+ else
+ dpll_md_reg = DPLL_B_MD;
+
+ adpa_reg = ADPA;
+
+ /*
+ * Disable separate mode multiplier used when cloning SDVO to CRT
+ * XXX this needs to be adjusted when we really are cloning
+ */
+ {
+ dpll_md = REG_READ(dpll_md_reg);
+ REG_WRITE(dpll_md_reg,
+ dpll_md & ~DPLL_MD_UDI_MULTIPLIER_MASK);
+ }
+
+ adpa = 0;
+ if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
+ adpa |= ADPA_HSYNC_ACTIVE_HIGH;
+ if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
+ adpa |= ADPA_VSYNC_ACTIVE_HIGH;
+
+ if (psb_intel_crtc->pipe == 0) {
+ adpa |= ADPA_PIPE_A_SELECT;
+ } else {
+ adpa |= ADPA_PIPE_B_SELECT;
+ }
+
+ REG_WRITE(adpa_reg, adpa);
+}
+
+
+/**
+ * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect CRT presence.
+ *
+ * \return true if CRT is connected.
+ * \return false if CRT is disconnected.
+ */
+static bool cdv_intel_crt_detect_hotplug(struct drm_connector *connector, bool force)
+{
+ struct drm_device *dev = connector->dev;
+ u32 hotplug_en;
+ int i, tries = 0, ret = false;
+ u32 adpa_orig;
+
+ /* disable the DAC when doing the hotplug detection */
+
+ adpa_orig = REG_READ(ADPA);
+
+ REG_WRITE(ADPA, adpa_orig & ~(ADPA_DAC_ENABLE));
+
+ /*
+ * On a CDV thep, CRT detect sequence need to be done twice
+ * to get a reliable result.
+ */
+ tries = 2;
+
+ hotplug_en = REG_READ(PORT_HOTPLUG_EN);
+ hotplug_en &= ~(CRT_HOTPLUG_DETECT_MASK);
+ hotplug_en |= CRT_HOTPLUG_FORCE_DETECT;
+
+ hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64;
+ hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50;
+
+ for (i = 0; i < tries ; i++) {
+ unsigned long timeout;
+ /* turn on the FORCE_DETECT */
+ REG_WRITE(PORT_HOTPLUG_EN, hotplug_en);
+ timeout = jiffies + msecs_to_jiffies(1000);
+ /* wait for FORCE_DETECT to go off */
+ do {
+ if (!(REG_READ(PORT_HOTPLUG_EN) &
+ CRT_HOTPLUG_FORCE_DETECT))
+ break;
+ msleep(1);
+ } while (time_after(timeout, jiffies));
+ }
+
+ if ((REG_READ(PORT_HOTPLUG_STAT) & CRT_HOTPLUG_MONITOR_MASK) !=
+ CRT_HOTPLUG_MONITOR_NONE)
+ ret = true;
+
+ /* Restore the saved ADPA */
+ REG_WRITE(ADPA, adpa_orig);
+ return ret;
+}
+
+static enum drm_connector_status cdv_intel_crt_detect(struct drm_connector *connector, bool force)
+{
+ if (cdv_intel_crt_detect_hotplug(connector, force))
+ return connector_status_connected;
+ else
+ return connector_status_disconnected;
+}
+
+static void cdv_intel_crt_destroy(struct drm_connector *connector)
+{
+ struct psb_intel_output *intel_output = to_psb_intel_output(connector);
+
+ psb_intel_i2c_destroy(intel_output->ddc_bus);
+ drm_sysfs_connector_remove(connector);
+ drm_connector_cleanup(connector);
+ kfree(connector);
+}
+
+static int cdv_intel_crt_get_modes(struct drm_connector *connector)
+{
+ struct psb_intel_output *intel_output =
+ to_psb_intel_output(connector);
+ return psb_intel_ddc_get_modes(intel_output);
+}
+
+static int cdv_intel_crt_set_property(struct drm_connector *connector,
+ struct drm_property *property,
+ uint64_t value)
+{
+ return 0;
+}
+
+/*
+ * Routines for controlling stuff on the analog port
+ */
+
+static const struct drm_encoder_helper_funcs cdv_intel_crt_helper_funcs = {
+ .dpms = cdv_intel_crt_dpms,
+ .mode_fixup = cdv_intel_crt_mode_fixup,
+ .prepare = psb_intel_encoder_prepare,
+ .commit = psb_intel_encoder_commit,
+ .mode_set = cdv_intel_crt_mode_set,
+};
+
+static const struct drm_connector_funcs cdv_intel_crt_connector_funcs = {
+ .dpms = drm_helper_connector_dpms,
+ .detect = cdv_intel_crt_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .destroy = cdv_intel_crt_destroy,
+ .set_property = cdv_intel_crt_set_property,
+};
+
+static const struct drm_connector_helper_funcs cdv_intel_crt_connector_helper_funcs = {
+ .mode_valid = cdv_intel_crt_mode_valid,
+ .get_modes = cdv_intel_crt_get_modes,
+ .best_encoder = psb_intel_best_encoder,
+};
+
+static void cdv_intel_crt_enc_destroy(struct drm_encoder *encoder)
+{
+ drm_encoder_cleanup(encoder);
+}
+
+static const struct drm_encoder_funcs cdv_intel_crt_enc_funcs = {
+ .destroy = cdv_intel_crt_enc_destroy,
+};
+
+void cdv_intel_crt_init(struct drm_device *dev,
+ struct psb_intel_mode_device *mode_dev)
+{
+
+ struct psb_intel_output *psb_intel_output;
+ struct drm_connector *connector;
+ struct drm_encoder *encoder;
+
+ u32 i2c_reg;
+
+ psb_intel_output = kzalloc(sizeof(struct psb_intel_output), GFP_KERNEL);
+ if (!psb_intel_output)
+ return;
+
+ psb_intel_output->mode_dev = mode_dev;
+ connector = &psb_intel_output->base;
+ drm_connector_init(dev, connector,
+ &cdv_intel_crt_connector_funcs, DRM_MODE_CONNECTOR_VGA);
+
+ encoder = &psb_intel_output->enc;
+ drm_encoder_init(dev, encoder,
+ &cdv_intel_crt_enc_funcs, DRM_MODE_ENCODER_DAC);
+
+ drm_mode_connector_attach_encoder(&psb_intel_output->base,
+ &psb_intel_output->enc);
+
+ /* Set up the DDC bus. */
+ i2c_reg = GPIOA;
+ /* Remove the following code for CDV */
+ /*
+ if (dev_priv->crt_ddc_bus != 0)
+ i2c_reg = dev_priv->crt_ddc_bus;
+ }*/
+ psb_intel_output->ddc_bus = psb_intel_i2c_create(dev,
+ i2c_reg, "CRTDDC_A");
+ if (!psb_intel_output->ddc_bus) {
+ dev_printk(KERN_ERR, &dev->pdev->dev, "DDC bus registration "
+ "failed.\n");
+ goto failed_ddc;
+ }
+
+ psb_intel_output->type = INTEL_OUTPUT_ANALOG;
+ /*
+ psb_intel_output->clone_mask = (1 << INTEL_ANALOG_CLONE_BIT);
+ psb_intel_output->crtc_mask = (1 << 0) | (1 << 1);
+ */
+ connector->interlace_allowed = 0;
+ connector->doublescan_allowed = 0;
+
+ drm_encoder_helper_add(encoder, &cdv_intel_crt_helper_funcs);
+ drm_connector_helper_add(connector, &cdv_intel_crt_connector_helper_funcs);
+
+ drm_sysfs_connector_add(connector);
+
+ return;
+failed_ddc:
+ drm_encoder_cleanup(&psb_intel_output->enc);
+ drm_connector_cleanup(&psb_intel_output->base);
+ kfree(psb_intel_output);
+ return;
+}
diff --git a/drivers/staging/gma500/cdv_intel_hdmi.c b/drivers/staging/gma500/cdv_intel_hdmi.c
new file mode 100644
index 0000000..5acfb37
--- /dev/null
+++ b/drivers/staging/gma500/cdv_intel_hdmi.c
@@ -0,0 +1,373 @@
+/*
+ * Copyright © 2006-2011 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:
+ * jim liu <jim.liu@...el.com>
+ *
+ * FIXME:
+ * We should probably make this generic and share it with Medfield
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_edid.h>
+#include "psb_intel_drv.h"
+#include "psb_drv.h"
+#include "psb_intel_reg.h"
+#include <linux/pm_runtime.h>
+
+/* hdmi control bits */
+#define HDMI_NULL_PACKETS_DURING_VSYNC (1 << 9)
+#define HDMI_BORDER_ENABLE (1 << 7)
+#define HDMI_AUDIO_ENABLE (1 << 6)
+#define HDMI_VSYNC_ACTIVE_HIGH (1 << 4)
+#define HDMI_HSYNC_ACTIVE_HIGH (1 << 3)
+/* hdmi-b control bits */
+#define HDMIB_PIPE_B_SELECT (1 << 30)
+
+
+struct mid_intel_hdmi_priv {
+ u32 hdmi_reg;
+ u32 save_HDMIB;
+ bool has_hdmi_sink;
+ bool has_hdmi_audio;
+ /* Should set this when detect hotplug */
+ bool hdmi_device_connected;
+ struct mdfld_hdmi_i2c *i2c_bus;
+ struct i2c_adapter *hdmi_i2c_adapter; /* for control functions */
+ struct drm_device *dev;
+};
+
+static void cdv_hdmi_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct drm_device *dev = encoder->dev;
+ struct psb_intel_output *output = enc_to_psb_intel_output(encoder);
+ struct mid_intel_hdmi_priv *hdmi_priv = output->dev_priv;
+ u32 hdmib;
+ struct drm_crtc *crtc = encoder->crtc;
+ struct psb_intel_crtc *intel_crtc = to_psb_intel_crtc(crtc);
+
+ hdmib = (2 << 10);
+
+ if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
+ hdmib |= HDMI_VSYNC_ACTIVE_HIGH;
+ if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
+ hdmib |= HDMI_HSYNC_ACTIVE_HIGH;
+
+ if (intel_crtc->pipe == 1)
+ hdmib |= HDMIB_PIPE_B_SELECT;
+
+ if (hdmi_priv->has_hdmi_audio) {
+ hdmib |= HDMI_AUDIO_ENABLE;
+ hdmib |= HDMI_NULL_PACKETS_DURING_VSYNC;
+ }
+
+ REG_WRITE(hdmi_priv->hdmi_reg, hdmib);
+ REG_READ(hdmi_priv->hdmi_reg);
+}
+
+static bool cdv_hdmi_mode_fixup(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+
+ return true;
+}
+
+static void cdv_hdmi_dpms(struct drm_encoder *encoder, int mode)
+{
+ struct drm_device *dev = encoder->dev;
+ struct psb_intel_output *output = enc_to_psb_intel_output(encoder);
+ struct mid_intel_hdmi_priv *hdmi_priv = output->dev_priv;
+ u32 hdmib;
+
+ hdmib = REG_READ(hdmi_priv->hdmi_reg);
+
+ if (mode != DRM_MODE_DPMS_ON) {
+ REG_WRITE(hdmi_priv->hdmi_reg, hdmib & ~HDMIB_PORT_EN);
+ } else {
+ REG_WRITE(hdmi_priv->hdmi_reg, hdmib | HDMIB_PORT_EN);
+ }
+ REG_READ(hdmi_priv->hdmi_reg);
+}
+
+static void cdv_hdmi_save(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct psb_intel_output *output = to_psb_intel_output(connector);
+ struct mid_intel_hdmi_priv *hdmi_priv = output->dev_priv;
+
+ hdmi_priv->save_HDMIB = REG_READ(hdmi_priv->hdmi_reg);
+}
+
+static void cdv_hdmi_restore(struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct psb_intel_output *output = to_psb_intel_output(connector);
+ struct mid_intel_hdmi_priv *hdmi_priv = output->dev_priv;
+
+ REG_WRITE(hdmi_priv->hdmi_reg, hdmi_priv->save_HDMIB);
+ REG_READ(hdmi_priv->hdmi_reg);
+}
+
+static enum drm_connector_status cdv_hdmi_detect(struct drm_connector *connector, bool force)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_psb_private *dev_priv = dev->dev_private;
+ struct psb_intel_output *psb_intel_output = to_psb_intel_output(connector);
+ struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_output->dev_priv;
+ struct edid *edid = NULL;
+ enum drm_connector_status status = connector_status_disconnected;
+
+ edid = drm_get_edid(&psb_intel_output->base,
+ psb_intel_output->hdmi_i2c_adapter);
+
+ hdmi_priv->has_hdmi_sink = false;
+ hdmi_priv->has_hdmi_audio = false;
+ if (edid) {
+ if (edid->input & DRM_EDID_INPUT_DIGITAL) {
+ status = connector_status_connected;
+ hdmi_priv->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
+ hdmi_priv->has_hdmi_audio = drm_detect_monitor_audio(edid);
+ }
+
+ psb_intel_output->base.display_info.raw_edid = NULL;
+ kfree(edid);
+ }
+ return status;
+}
+
+static int cdv_hdmi_set_property(struct drm_connector *connector,
+ struct drm_property *property,
+ uint64_t value)
+{
+ struct drm_encoder *encoder = connector->encoder;
+
+ if (!strcmp(property->name, "scaling mode") && encoder) {
+ struct psb_intel_crtc *crtc = to_psb_intel_crtc(encoder->crtc);
+ bool centre;
+ uint64_t curValue;
+
+ if (!crtc)
+ return -1;
+
+ switch (value) {
+ case DRM_MODE_SCALE_FULLSCREEN:
+ break;
+ case DRM_MODE_SCALE_NO_SCALE:
+ break;
+ case DRM_MODE_SCALE_ASPECT:
+ break;
+ default:
+ return -1;
+ }
+
+ if (drm_connector_property_get_value(connector, property, &curValue))
+ return -1;
+
+ if (curValue == value)
+ return 0;
+
+ if (drm_connector_property_set_value(connector, property, value))
+ return -1;
+
+ centre = (curValue == DRM_MODE_SCALE_NO_SCALE) ||
+ (value == DRM_MODE_SCALE_NO_SCALE);
+
+ if (crtc->saved_mode.hdisplay != 0 &&
+ crtc->saved_mode.vdisplay != 0) {
+ if (centre) {
+ if (!drm_crtc_helper_set_mode(encoder->crtc, &crtc->saved_mode,
+ encoder->crtc->x, encoder->crtc->y, encoder->crtc->fb))
+ return -1;
+ } else {
+ struct drm_encoder_helper_funcs *helpers = encoder->helper_private;
+ helpers->mode_set(encoder, &crtc->saved_mode,
+ &crtc->saved_adjusted_mode);
+ }
+ }
+ }
+ return 0;
+}
+
+/*
+ * Return the list of HDMI DDC modes if available.
+ */
+static int cdv_hdmi_get_modes(struct drm_connector *connector)
+{
+ struct psb_intel_output *psb_intel_output = to_psb_intel_output(connector);
+ struct edid *edid = NULL;
+ int ret = 0;
+
+ edid = drm_get_edid(&psb_intel_output->base,
+ psb_intel_output->hdmi_i2c_adapter);
+ if (edid) {
+ drm_mode_connector_update_edid_property(&psb_intel_output->
+ base, edid);
+ ret = drm_add_edid_modes(&psb_intel_output->base, edid);
+ kfree(edid);
+ }
+ return ret;
+}
+
+static int cdv_hdmi_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+
+ if (mode->clock > 165000)
+ return MODE_CLOCK_HIGH;
+ if (mode->clock < 20000)
+ return MODE_CLOCK_HIGH;
+
+ /* just in case */
+ if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+ return MODE_NO_DBLESCAN;
+
+ /* just in case */
+ if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+ return MODE_NO_INTERLACE;
+
+ /*
+ * FIXME: fornow we limit the size to 1680x1050 on CDV, otherwise it will
+ * go beyond the stolen memory size allocated to the Framebuffer
+ */
+ if (mode->hdisplay > 1680)
+ return MODE_PANEL;
+ if (mode->vdisplay > 1050)
+ return MODE_PANEL;
+ return MODE_OK;
+}
+
+static void cdv_hdmi_destroy(struct drm_connector *connector)
+{
+ struct psb_intel_output *psb_intel_output =
+ to_psb_intel_output(connector);
+
+ if (psb_intel_output->ddc_bus)
+ psb_intel_i2c_destroy(psb_intel_output->ddc_bus);
+ drm_sysfs_connector_remove(connector);
+ drm_connector_cleanup(connector);
+ kfree(connector);
+}
+
+static const struct drm_encoder_helper_funcs cdv_hdmi_helper_funcs = {
+ .dpms = cdv_hdmi_dpms,
+ .mode_fixup = cdv_hdmi_mode_fixup,
+ .prepare = psb_intel_encoder_prepare,
+ .mode_set = cdv_hdmi_mode_set,
+ .commit = psb_intel_encoder_commit,
+};
+
+static const struct drm_connector_helper_funcs cdv_hdmi_connector_helper_funcs = {
+ .get_modes = cdv_hdmi_get_modes,
+ .mode_valid = cdv_hdmi_mode_valid,
+ .best_encoder = psb_intel_best_encoder,
+};
+
+static const struct drm_connector_funcs cdv_hdmi_connector_funcs = {
+ .dpms = drm_helper_connector_dpms,
+ .save = cdv_hdmi_save,
+ .restore = cdv_hdmi_restore,
+ .detect = cdv_hdmi_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .set_property = cdv_hdmi_set_property,
+ .destroy = cdv_hdmi_destroy,
+};
+
+void cdv_hdmi_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int reg)
+{
+ struct psb_intel_output *psb_intel_output;
+ struct drm_connector *connector;
+ struct drm_encoder *encoder;
+ struct mid_intel_hdmi_priv *hdmi_priv;
+ int ddc_bus;
+
+ psb_intel_output = kzalloc(sizeof(struct psb_intel_output) +
+ sizeof(struct mid_intel_hdmi_priv), GFP_KERNEL);
+ if (!psb_intel_output)
+ return;
+
+ hdmi_priv = (struct mid_intel_hdmi_priv *)(psb_intel_output + 1);
+ psb_intel_output->mode_dev = mode_dev;
+ connector = &psb_intel_output->base;
+ encoder = &psb_intel_output->enc;
+ drm_connector_init(dev, &psb_intel_output->base,
+ &cdv_hdmi_connector_funcs,
+ DRM_MODE_CONNECTOR_DVID);
+
+ drm_encoder_init(dev, &psb_intel_output->enc, &psb_intel_lvds_enc_funcs,
+ DRM_MODE_ENCODER_TMDS);
+
+ drm_mode_connector_attach_encoder(&psb_intel_output->base,
+ &psb_intel_output->enc);
+ psb_intel_output->type = INTEL_OUTPUT_HDMI;
+ hdmi_priv->hdmi_reg = reg;
+ hdmi_priv->has_hdmi_sink = false;
+ psb_intel_output->dev_priv = hdmi_priv;
+
+ drm_encoder_helper_add(encoder, &cdv_hdmi_helper_funcs);
+ drm_connector_helper_add(connector,
+ &cdv_hdmi_connector_helper_funcs);
+ connector->display_info.subpixel_order = SubPixelHorizontalRGB;
+ connector->interlace_allowed = false;
+ connector->doublescan_allowed = false;
+
+ drm_connector_attach_property(connector, dev->mode_config.scaling_mode_property, DRM_MODE_SCALE_FULLSCREEN);
+
+ switch (reg) {
+ case SDVOB:
+ ddc_bus = GPIOE;
+ break;
+ case SDVOC:
+ ddc_bus = GPIOD;
+ break;
+ default:
+ DRM_ERROR("unknown reg 0x%x for HDMI\n", reg);
+ goto failed_ddc;
+ break;
+ }
+
+ psb_intel_output->ddc_bus = psb_intel_i2c_create(dev,
+ ddc_bus, (reg == SDVOB) ? "HDMIB":"HDMIC");
+
+ if (psb_intel_output->ddc_bus) {
+ /* HACKS_JLIU7 */
+ DRM_INFO("Enter cdv_hdmi_init, i2c_adapter is availabe.\n");
+
+ } else {
+ printk(KERN_ALERT "No ddc adapter available!\n");
+ goto failed_ddc;
+ }
+ psb_intel_output->hdmi_i2c_adapter = &(psb_intel_output->ddc_bus->adapter);
+
+ hdmi_priv->dev = dev;
+ drm_sysfs_connector_add(connector);
+ return;
+
+failed_ddc:
+ drm_encoder_cleanup(&psb_intel_output->enc);
+ drm_connector_cleanup(&psb_intel_output->base);
+ kfree(psb_intel_output);
+}
--
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