1 /* 2 * Copyright 2012 Red Hat 3 * 4 * This file is subject to the terms and conditions of the GNU General 5 * Public License version 2. See the file COPYING in the main 6 * directory of this archive for more details. 7 * 8 * Authors: Matthew Garrett 9 * Dave Airlie 10 */ 11 #include <linux/module.h> 12 #include <linux/console.h> 13 #include <drm/drmP.h> 14 15 #include "mgag200_drv.h" 16 17 #include <drm/drm_pciids.h> 18 19 /* 20 * This is the generic driver code. This binds the driver to the drm core, 21 * which then performs further device association and calls our graphics init 22 * functions 23 */ 24 int mgag200_modeset = -1; 25 26 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); 27 module_param_named(modeset, mgag200_modeset, int, 0400); 28 29 static struct drm_driver driver; 30 31 static const struct pci_device_id pciidlist[] = { 32 { PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_A }, 33 { PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B }, 34 { PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV }, 35 { PCI_VENDOR_ID_MATROX, 0x532, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_WB }, 36 { PCI_VENDOR_ID_MATROX, 0x533, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH }, 37 { PCI_VENDOR_ID_MATROX, 0x534, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_ER }, 38 { PCI_VENDOR_ID_MATROX, 0x536, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EW3 }, 39 { PCI_VENDOR_ID_MATROX, 0x538, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH3 }, 40 {0,} 41 }; 42 43 MODULE_DEVICE_TABLE(pci, pciidlist); 44 45 static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev) 46 { 47 struct apertures_struct *ap; 48 bool primary = false; 49 50 ap = alloc_apertures(1); 51 if (!ap) 52 return; 53 54 ap->ranges[0].base = pci_resource_start(pdev, 0); 55 ap->ranges[0].size = pci_resource_len(pdev, 0); 56 57 #ifdef CONFIG_X86 58 primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; 59 #endif 60 drm_fb_helper_remove_conflicting_framebuffers(ap, "mgag200drmfb", primary); 61 kfree(ap); 62 } 63 64 65 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 66 { 67 mgag200_kick_out_firmware_fb(pdev); 68 69 return drm_get_pci_dev(pdev, ent, &driver); 70 } 71 72 static void mga_pci_remove(struct pci_dev *pdev) 73 { 74 struct drm_device *dev = pci_get_drvdata(pdev); 75 76 drm_put_dev(dev); 77 } 78 79 static const struct file_operations mgag200_driver_fops = { 80 .owner = THIS_MODULE, 81 .open = drm_open, 82 .release = drm_release, 83 .unlocked_ioctl = drm_ioctl, 84 .mmap = mgag200_mmap, 85 .poll = drm_poll, 86 .compat_ioctl = drm_compat_ioctl, 87 .read = drm_read, 88 }; 89 90 static struct drm_driver driver = { 91 .driver_features = DRIVER_GEM | DRIVER_MODESET, 92 .load = mgag200_driver_load, 93 .unload = mgag200_driver_unload, 94 .fops = &mgag200_driver_fops, 95 .name = DRIVER_NAME, 96 .desc = DRIVER_DESC, 97 .date = DRIVER_DATE, 98 .major = DRIVER_MAJOR, 99 .minor = DRIVER_MINOR, 100 .patchlevel = DRIVER_PATCHLEVEL, 101 102 .gem_free_object_unlocked = mgag200_gem_free_object, 103 .dumb_create = mgag200_dumb_create, 104 .dumb_map_offset = mgag200_dumb_mmap_offset, 105 }; 106 107 static struct pci_driver mgag200_pci_driver = { 108 .name = DRIVER_NAME, 109 .id_table = pciidlist, 110 .probe = mga_pci_probe, 111 .remove = mga_pci_remove, 112 }; 113 114 static int __init mgag200_init(void) 115 { 116 if (vgacon_text_force() && mgag200_modeset == -1) 117 return -EINVAL; 118 119 if (mgag200_modeset == 0) 120 return -EINVAL; 121 122 return pci_register_driver(&mgag200_pci_driver); 123 } 124 125 static void __exit mgag200_exit(void) 126 { 127 pci_unregister_driver(&mgag200_pci_driver); 128 } 129 130 module_init(mgag200_init); 131 module_exit(mgag200_exit); 132 133 MODULE_AUTHOR(DRIVER_AUTHOR); 134 MODULE_DESCRIPTION(DRIVER_DESC); 135 MODULE_LICENSE("GPL"); 136