diff options
Diffstat (limited to 'drivers/gpu/drm/ast/ast_drv.c')
| -rw-r--r-- | drivers/gpu/drm/ast/ast_drv.c | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c new file mode 100644 index 000000000000..d0c4574ef49c --- /dev/null +++ b/drivers/gpu/drm/ast/ast_drv.c @@ -0,0 +1,244 @@ +/* + * 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 "drmP.h" +#include "drm.h" +#include "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 DEFINE_PCI_DEVICE_TABLE(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 __devinit +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); + mutex_lock(&dev->mode_config.mutex); + drm_helper_resume_force_mode(dev); + mutex_unlock(&dev->mode_config.mutex); + + 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, + .fasync = drm_fasync, + .read = drm_read, +}; + +static struct drm_driver driver = { + .driver_features = DRIVER_USE_MTRR | DRIVER_MODESET | DRIVER_GEM, + .dev_priv_size = 0, + + .load = ast_driver_load, + .unload = ast_driver_unload, + + .fops = &ast_fops, + .name = DRIVER_NAME, + .desc = DRIVER_DESC, + .date = DRIVER_DATE, + .major = DRIVER_MAJOR, + .minor = DRIVER_MINOR, + .patchlevel = DRIVER_PATCHLEVEL, + + .gem_init_object = ast_gem_init_object, + .gem_free_object = ast_gem_free_object, + .dumb_create = ast_dumb_create, + .dumb_map_offset = ast_dumb_mmap_offset, + .dumb_destroy = ast_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"); + |