--- /dev/null
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+/*
+ * Authors: Dave Airlie <airlied@redhat.com>
+ */
+#include <linux/module.h>
+#include <linux/console.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "ast_drv.h"
+
+int ast_modeset = -1;
+
+MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
+module_param_named(modeset, ast_modeset, int, 0400);
+
+#define PCI_VENDOR_ASPEED 0x1a03
+
+static struct drm_driver driver;
+
+#define AST_VGA_DEVICE(id, info) { \
+ .class = PCI_BASE_CLASS_DISPLAY << 16, \
+ .class_mask = 0xff0000, \
+ .vendor = PCI_VENDOR_ASPEED, \
+ .device = id, \
+ .subvendor = PCI_ANY_ID, \
+ .subdevice = PCI_ANY_ID, \
+ .driver_data = (unsigned long) info }
+
+static const struct pci_device_id pciidlist[] = {
+ AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
+ AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
+ /* AST_VGA_DEVICE(PCI_CHIP_AST1180, NULL), - don't bind to 1180 for now */
+ {0, 0, 0},
+};
+
+MODULE_DEVICE_TABLE(pci, pciidlist);
+
+static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ return drm_get_pci_dev(pdev, ent, &driver);
+}
+
+static void
+ast_pci_remove(struct pci_dev *pdev)
+{
+ struct drm_device *dev = pci_get_drvdata(pdev);
+
+ drm_put_dev(dev);
+}
+
+
+
+static int ast_drm_freeze(struct drm_device *dev)
+{
+ drm_kms_helper_poll_disable(dev);
+
+ pci_save_state(dev->pdev);
+
+ console_lock();
+ ast_fbdev_set_suspend(dev, 1);
+ console_unlock();
+ return 0;
+}
+
+static int ast_drm_thaw(struct drm_device *dev)
+{
+ int error = 0;
+
+ ast_post_gpu(dev);
+
+ drm_mode_config_reset(dev);
+ drm_helper_resume_force_mode(dev);
+
+ console_lock();
+ ast_fbdev_set_suspend(dev, 0);
+ console_unlock();
+ return error;
+}
+
+static int ast_drm_resume(struct drm_device *dev)
+{
+ int ret;
+
+ if (pci_enable_device(dev->pdev))
+ return -EIO;
+
+ ret = ast_drm_thaw(dev);
+ if (ret)
+ return ret;
+
+ drm_kms_helper_poll_enable(dev);
+ return 0;
+}
+
+static int ast_pm_suspend(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct drm_device *ddev = pci_get_drvdata(pdev);
+ int error;
+
+ error = ast_drm_freeze(ddev);
+ if (error)
+ return error;
+
+ pci_disable_device(pdev);
+ pci_set_power_state(pdev, PCI_D3hot);
+ return 0;
+}
+static int ast_pm_resume(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct drm_device *ddev = pci_get_drvdata(pdev);
+ return ast_drm_resume(ddev);
+}
+
+static int ast_pm_freeze(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct drm_device *ddev = pci_get_drvdata(pdev);
+
+ if (!ddev || !ddev->dev_private)
+ return -ENODEV;
+ return ast_drm_freeze(ddev);
+
+}
+
+static int ast_pm_thaw(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct drm_device *ddev = pci_get_drvdata(pdev);
+ return ast_drm_thaw(ddev);
+}
+
+static int ast_pm_poweroff(struct device *dev)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct drm_device *ddev = pci_get_drvdata(pdev);
+
+ return ast_drm_freeze(ddev);
+}
+
+static const struct dev_pm_ops ast_pm_ops = {
+ .suspend = ast_pm_suspend,
+ .resume = ast_pm_resume,
+ .freeze = ast_pm_freeze,
+ .thaw = ast_pm_thaw,
+ .poweroff = ast_pm_poweroff,
+ .restore = ast_pm_resume,
+};
+
+static struct pci_driver ast_pci_driver = {
+ .name = DRIVER_NAME,
+ .id_table = pciidlist,
+ .probe = ast_pci_probe,
+ .remove = ast_pci_remove,
+ .driver.pm = &ast_pm_ops,
+};
+
+static const struct file_operations ast_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = ast_mmap,
+ .poll = drm_poll,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = drm_compat_ioctl,
+#endif
+ .read = drm_read,
+};
+
+static struct drm_driver driver = {
+ .driver_features = DRIVER_MODESET | DRIVER_GEM,
+
+ .load = ast_driver_load,
+ .unload = ast_driver_unload,
+ .set_busid = drm_pci_set_busid,
+
+ .fops = &ast_fops,
+ .name = DRIVER_NAME,
+ .desc = DRIVER_DESC,
+ .date = DRIVER_DATE,
+ .major = DRIVER_MAJOR,
+ .minor = DRIVER_MINOR,
+ .patchlevel = DRIVER_PATCHLEVEL,
+
+ .gem_free_object = ast_gem_free_object,
+ .dumb_create = ast_dumb_create,
+ .dumb_map_offset = ast_dumb_mmap_offset,
+ .dumb_destroy = drm_gem_dumb_destroy,
+
+};
+
+static int __init ast_init(void)
+{
+#ifdef CONFIG_VGA_CONSOLE
+ if (vgacon_text_force() && ast_modeset == -1)
+ return -EINVAL;
+#endif
+
+ if (ast_modeset == 0)
+ return -EINVAL;
+ return drm_pci_init(&driver, &ast_pci_driver);
+}
+static void __exit ast_exit(void)
+{
+ drm_pci_exit(&driver, &ast_pci_driver);
+}
+
+module_init(ast_init);
+module_exit(ast_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL and additional rights");
+
Code Review / kvmfornfv.git / blobdiff