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Message-Id: <1464514855-108050-6-git-send-email-zourongrong@gmail.com>
Date: Sun, 29 May 2016 17:40:53 +0800
From: Rongrong Zou <zourongrong@...il.com>
To: zourongrong@...wei.com, airlied@...ux.ie, emil.l.velikov@...il.com,
lijianhua@...wei.com, xinliang.liu@...aro.org
Cc: dri-devel@...ts.freedesktop.org, guohanjun@...wei.com,
majun258@...wei.com, linuxarm@...wei.com,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-fbdev@...r.kernel.org
Subject: [path v2 5/7] drm/hisilicon/hibmc: Add connector for VDAC
Add connector funcs and helper funcs for VDAC.
Signed-off-by: Rongrong Zou <zourongrong@...il.com>
Signed-off-by: Jianhua Li <lijianhua@...wei.com>
---
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 21 ++++++
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 3 +-
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 89 ++++++++++++++++++++++++
3 files changed, 112 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
index 962072f..70d79d2 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c
@@ -135,6 +135,14 @@ static int hibmc_kms_init(struct hibmc_drm_device *hidev)
return ret;
}
+ ret = hibmc_connector_init(hidev);
+ if (ret) {
+ DRM_ERROR("failed to init connector\n");
+ return ret;
+ }
+
+ drm_mode_connector_attach_encoder(&hidev->connector,
+ &hidev->encoder);
return 0;
}
@@ -278,6 +286,12 @@ err:
return ret;
}
+static void hibmc_connector_unplug_all(struct drm_device *dev)
+{
+ mutex_lock(&dev->mode_config.mutex);
+ drm_connector_unregister_all(dev);
+ mutex_unlock(&dev->mode_config.mutex);
+}
static int hibmc_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
@@ -304,8 +318,14 @@ static int hibmc_pci_probe(struct pci_dev *pdev,
if (ret)
goto err_unload;
+ ret = drm_connector_register_all(dev);
+ if (ret)
+ goto err_unregister;
+
return 0;
+err_unregister:
+ drm_dev_unregister(dev);
err_unload:
hibmc_unload(dev);
err_disable:
@@ -320,6 +340,7 @@ static void hibmc_pci_remove(struct pci_dev *pdev)
{
struct drm_device *dev = pci_get_drvdata(pdev);
+ hibmc_connector_unplug_all(dev);
drm_dev_unregister(dev);
hibmc_unload(dev);
drm_dev_unref(dev);
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
index d0c5982..eb5a892 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
@@ -35,12 +35,13 @@ struct hibmc_drm_device {
struct drm_plane plane;
struct drm_crtc crtc;
struct drm_encoder encoder;
+ struct drm_connector connector;
bool mode_config_initialized;
};
int hibmc_plane_init(struct hibmc_drm_device *hidev);
int hibmc_crtc_init(struct hibmc_drm_device *hidev);
int hibmc_encoder_init(struct hibmc_drm_device *hidev);
-
+int hibmc_connector_init(struct hibmc_drm_device *hidev);
#endif
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
index cb9a130..b39ec65 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
@@ -24,6 +24,13 @@
#include "hibmc_drm_drv.h"
#include "hibmc_drm_regs.h"
+static int defx = 800;
+static int defy = 600;
+
+module_param(defx, int, 0444);
+module_param(defy, int, 0444);
+MODULE_PARM_DESC(defx, "default x resolution");
+MODULE_PARM_DESC(defy, "default y resolution");
static void hibmc_encoder_disable(struct drm_encoder *encoder)
{
@@ -83,3 +90,85 @@ int hibmc_encoder_init(struct hibmc_drm_device *hidev)
return 0;
}
+static int hibmc_connector_get_modes(struct drm_connector *connector)
+{
+ int count;
+
+ count = drm_add_modes_noedid(connector, 800, 600);
+ drm_set_preferred_mode(connector, defx, defy);
+ return count;
+}
+
+static int hibmc_connector_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ struct hibmc_drm_device *hiprivate =
+ container_of(connector, struct hibmc_drm_device, connector);
+ unsigned long size = mode->hdisplay * mode->vdisplay * 4;
+
+ /*
+ * Make sure we can fit two framebuffers into video memory.
+ * This allows up to 1600x1200 with 16 MB (default size).
+ * If you want more try this:
+ * 'qemu -vga std -global VGA.vgamem_mb=32 $otherargs'
+ */
+ if (size * 2 > hiprivate->fb_size)
+ return MODE_BAD;
+
+ return MODE_OK;
+}
+
+static struct drm_encoder *
+hibmc_connector_best_encoder(struct drm_connector *connector)
+{
+ int enc_id = connector->encoder_ids[0];
+
+ /* pick the encoder ids */
+ if (enc_id)
+ return drm_encoder_find(connector->dev, enc_id);
+
+ return NULL;
+}
+
+static enum drm_connector_status hibmc_connector_detect(struct drm_connector
+ *connector, bool force)
+{
+ return connector_status_connected;
+}
+
+static const struct drm_connector_helper_funcs
+ hibmc_connector_connector_helper_funcs = {
+ .get_modes = hibmc_connector_get_modes,
+ .mode_valid = hibmc_connector_mode_valid,
+ .best_encoder = hibmc_connector_best_encoder,
+};
+
+static const struct drm_connector_funcs hibmc_connector_connector_funcs = {
+ .dpms = drm_atomic_helper_connector_dpms,
+ .detect = hibmc_connector_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .destroy = drm_connector_cleanup,
+ .reset = drm_atomic_helper_connector_reset,
+ .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+};
+
+int hibmc_connector_init(struct hibmc_drm_device *hidev)
+{
+ struct drm_device *dev = hidev->dev;
+ struct drm_connector *connector = &hidev->connector;
+ int ret;
+
+ ret = drm_connector_init(dev, connector,
+ &hibmc_connector_connector_funcs,
+ DRM_MODE_CONNECTOR_VIRTUAL);
+ if (ret) {
+ DRM_ERROR("failed to init connector\n");
+ return ret;
+ }
+ drm_connector_helper_add(connector,
+ &hibmc_connector_connector_helper_funcs);
+
+ return 0;
+}
+
--
1.9.1
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