/** * \file radeon_drv.c * ATI Radeon driver * * \author Gareth Hughes */ /* * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * All Rights Reserved. * * 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 * VA LINUX SYSTEMS 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. */ #include #include #include "radeon_drv.h" #include #include #include #include #include #include "drm_crtc_helper.h" /* * KMS wrapper. * - 2.0.0 - initial interface * - 2.1.0 - add square tiling interface * - 2.2.0 - add r6xx/r7xx const buffer support * - 2.3.0 - add MSPOS + 3D texture + r500 VAP regs * - 2.4.0 - add crtc id query * - 2.5.0 - add get accel 2 to work around ddx breakage for evergreen * - 2.6.0 - add tiling config query (r6xx+), add initial HiZ support (r300->r500) * 2.7.0 - fixups for r600 2D tiling support. (no external ABI change), add eg dyn gpr regs * 2.8.0 - pageflip support, r500 US_FORMAT regs. r500 ARGB2101010 colorbuf, r300->r500 CMASK, clock crystal query * 2.9.0 - r600 tiling (s3tc,rgtc) working, SET_PREDICATION packet 3 on r600 + eg, backend query * 2.10.0 - fusion 2D tiling * 2.11.0 - backend map, initial compute support for the CS checker * 2.12.0 - RADEON_CS_KEEP_TILING_FLAGS * 2.13.0 - virtual memory support, streamout * 2.14.0 - add evergreen tiling informations * 2.15.0 - add max_pipes query * 2.16.0 - fix evergreen 2D tiled surface calculation * 2.17.0 - add STRMOUT_BASE_UPDATE for r7xx * 2.18.0 - r600-eg: allow "invalid" DB formats * 2.19.0 - r600-eg: MSAA textures * 2.20.0 - r600-si: RADEON_INFO_TIMESTAMP query * 2.21.0 - r600-r700: FMASK and CMASK * 2.22.0 - r600 only: RESOLVE_BOX allowed * 2.23.0 - allow STRMOUT_BASE_UPDATE on RS780 and RS880 * 2.24.0 - eg only: allow MIP_ADDRESS=0 for MSAA textures * 2.25.0 - eg+: new info request for num SE and num SH * 2.26.0 - r600-eg: fix htile size computation * 2.27.0 - r600-SI: Add CS ioctl support for async DMA * 2.28.0 - r600-eg: Add MEM_WRITE packet support * 2.29.0 - R500 FP16 color clear registers * 2.30.0 - fix for FMASK texturing * 2.31.0 - Add fastfb support for rs690 * 2.32.0 - new info request for rings working * 2.33.0 - Add SI tiling mode array query * 2.34.0 - Add CIK tiling mode array query * 2.35.0 - Add CIK macrotile mode array query * 2.36.0 - Fix CIK DCE tiling setup * 2.37.0 - allow GS ring setup on r6xx/r7xx * 2.38.0 - RADEON_GEM_OP (GET_INITIAL_DOMAIN, SET_INITIAL_DOMAIN), * CIK: 1D and linear tiling modes contain valid PIPE_CONFIG */ #define KMS_DRIVER_MAJOR 2 #define KMS_DRIVER_MINOR 38 #define KMS_DRIVER_PATCHLEVEL 0 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags); int radeon_driver_unload_kms(struct drm_device *dev); void radeon_driver_lastclose_kms(struct drm_device *dev); int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv); void radeon_driver_postclose_kms(struct drm_device *dev, struct drm_file *file_priv); void radeon_driver_preclose_kms(struct drm_device *dev, struct drm_file *file_priv); int radeon_suspend_kms(struct drm_device *dev, bool suspend, bool fbcon); int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon); u32 radeon_get_vblank_counter_kms(struct drm_device *dev, int crtc); int radeon_enable_vblank_kms(struct drm_device *dev, int crtc); void radeon_disable_vblank_kms(struct drm_device *dev, int crtc); int radeon_get_vblank_timestamp_kms(struct drm_device *dev, int crtc, int *max_error, struct timeval *vblank_time, unsigned flags); void radeon_driver_irq_preinstall_kms(struct drm_device *dev); int radeon_driver_irq_postinstall_kms(struct drm_device *dev); void radeon_driver_irq_uninstall_kms(struct drm_device *dev); irqreturn_t radeon_driver_irq_handler_kms(int irq, void *arg); void radeon_gem_object_free(struct drm_gem_object *obj); int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv); void radeon_gem_object_close(struct drm_gem_object *obj, struct drm_file *file_priv); extern int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc, unsigned int flags, int *vpos, int *hpos, ktime_t *stime, ktime_t *etime); extern bool radeon_is_px(struct drm_device *dev); extern const struct drm_ioctl_desc radeon_ioctls_kms[]; extern int radeon_max_kms_ioctl; int radeon_mmap(struct file *filp, struct vm_area_struct *vma); int radeon_mode_dumb_mmap(struct drm_file *filp, struct drm_device *dev, uint32_t handle, uint64_t *offset_p); int radeon_mode_dumb_create(struct drm_file *file_priv, struct drm_device *dev, struct drm_mode_create_dumb *args); struct sg_table *radeon_gem_prime_get_sg_table(struct drm_gem_object *obj); struct drm_gem_object *radeon_gem_prime_import_sg_table(struct drm_device *dev, size_t size, struct sg_table *sg); int radeon_gem_prime_pin(struct drm_gem_object *obj); void radeon_gem_prime_unpin(struct drm_gem_object *obj); void *radeon_gem_prime_vmap(struct drm_gem_object *obj); void radeon_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); extern long radeon_kms_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); #if defined(CONFIG_DEBUG_FS) int radeon_debugfs_init(struct drm_minor *minor); void radeon_debugfs_cleanup(struct drm_minor *minor); #endif /* atpx handler */ #if defined(CONFIG_VGA_SWITCHEROO) void radeon_register_atpx_handler(void); void radeon_unregister_atpx_handler(void); #else static inline void radeon_register_atpx_handler(void) {} static inline void radeon_unregister_atpx_handler(void) {} #endif int radeon_no_wb; int radeon_modeset = -1; int radeon_dynclks = -1; int radeon_r4xx_atom = 0; int radeon_agpmode = 0; int radeon_vram_limit = 0; int radeon_gart_size = -1; /* auto */ int radeon_benchmarking = 0; int radeon_testing = 0; int radeon_connector_table = 0; int radeon_tv = 1; int radeon_audio = -1; int radeon_disp_priority = 0; int radeon_hw_i2c = 0; int radeon_pcie_gen2 = -1; int radeon_msi = -1; int radeon_lockup_timeout = 10000; int radeon_fastfb = 0; int radeon_dpm = -1; int radeon_aspm = -1; int radeon_runtime_pm = -1; int radeon_hard_reset = 0; MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers"); module_param_named(no_wb, radeon_no_wb, int, 0444); MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); module_param_named(modeset, radeon_modeset, int, 0400); MODULE_PARM_DESC(dynclks, "Disable/Enable dynamic clocks"); module_param_named(dynclks, radeon_dynclks, int, 0444); MODULE_PARM_DESC(r4xx_atom, "Enable ATOMBIOS modesetting for R4xx"); module_param_named(r4xx_atom, radeon_r4xx_atom, int, 0444); MODULE_PARM_DESC(vramlimit, "Restrict VRAM for testing, in megabytes"); module_param_named(vramlimit, radeon_vram_limit, int, 0600); MODULE_PARM_DESC(agpmode, "AGP Mode (-1 == PCI)"); module_param_named(agpmode, radeon_agpmode, int, 0444); MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc., -1 = auto)"); module_param_named(gartsize, radeon_gart_size, int, 0600); MODULE_PARM_DESC(benchmark, "Run benchmark"); module_param_named(benchmark, radeon_benchmarking, int, 0444); MODULE_PARM_DESC(test, "Run tests"); module_param_named(test, radeon_testing, int, 0444); MODULE_PARM_DESC(connector_table, "Force connector table"); module_param_named(connector_table, radeon_connector_table, int, 0444); MODULE_PARM_DESC(tv, "TV enable (0 = disable)"); module_param_named(tv, radeon_tv, int, 0444); MODULE_PARM_DESC(audio, "Audio enable (-1 = auto, 0 = disable, 1 = enable)"); module_param_named(audio, radeon_audio, int, 0444); MODULE_PARM_DESC(disp_priority, "Display Priority (0 = auto, 1 = normal, 2 = high)"); module_param_named(disp_priority, radeon_disp_priority, int, 0444); MODULE_PARM_DESC(hw_i2c, "hw i2c engine enable (0 = disable)"); module_param_named(hw_i2c, radeon_hw_i2c, int, 0444); MODULE_PARM_DESC(pcie_gen2, "PCIE Gen2 mode (-1 = auto, 0 = disable, 1 = enable)"); module_param_named(pcie_gen2, radeon_pcie_gen2, int, 0444); MODULE_PARM_DESC(msi, "MSI support (1 = enable, 0 = disable, -1 = auto)"); module_param_named(msi, radeon_msi, int, 0444); MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (defaul 10000 = 10 seconds, 0 = disable)"); module_param_named(lockup_timeout, radeon_lockup_timeout, int, 0444); MODULE_PARM_DESC(fastfb, "Direct FB access for IGP chips (0 = disable, 1 = enable)"); module_param_named(fastfb, radeon_fastfb, int, 0444); MODULE_PARM_DESC(dpm, "DPM support (1 = enable, 0 = disable, -1 = auto)"); module_param_named(dpm, radeon_dpm, int, 0444); MODULE_PARM_DESC(aspm, "ASPM support (1 = enable, 0 = disable, -1 = auto)"); module_param_named(aspm, radeon_aspm, int, 0444); MODULE_PARM_DESC(runpm, "PX runtime pm (1 = force enable, 0 = disable, -1 = PX only default)"); module_param_named(runpm, radeon_runtime_pm, int, 0444); MODULE_PARM_DESC(hard_reset, "PCI config reset (1 = force enable, 0 = disable (default))"); module_param_named(hard_reset, radeon_hard_reset, int, 0444); static struct pci_device_id pciidlist[] = { radeon_PCI_IDS }; MODULE_DEVICE_TABLE(pci, pciidlist); #ifdef CONFIG_DRM_RADEON_UMS static int radeon_suspend(struct drm_device *dev, pm_message_t state) { drm_radeon_private_t *dev_priv = dev->dev_private; if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600) return 0; /* Disable *all* interrupts */ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600) RADEON_WRITE(R500_DxMODE_INT_MASK, 0); RADEON_WRITE(RADEON_GEN_INT_CNTL, 0); return 0; } static int radeon_resume(struct drm_device *dev) { drm_radeon_private_t *dev_priv = dev->dev_private; if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_R600) return 0; /* Restore interrupt registers */ if ((dev_priv->flags & RADEON_FAMILY_MASK) >= CHIP_RS600) RADEON_WRITE(R500_DxMODE_INT_MASK, dev_priv->r500_disp_irq_reg); RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg); return 0; } static const struct file_operations radeon_driver_old_fops = { .owner = THIS_MODULE, .open = drm_open, .release = drm_release, .unlocked_ioctl = drm_ioctl, .mmap = drm_mmap, .poll = drm_poll, .read = drm_read, #ifdef CONFIG_COMPAT .compat_ioctl = radeon_compat_ioctl, #endif .llseek = noop_llseek, }; static struct drm_driver driver_old = { .driver_features = DRIVER_USE_AGP | DRIVER_PCI_DMA | DRIVER_SG | DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED, .dev_priv_size = sizeof(drm_radeon_buf_priv_t), .load = radeon_driver_load, .firstopen = radeon_driver_firstopen, .open = radeon_driver_open, .preclose = radeon_driver_preclose, .postclose = radeon_driver_postclose, .lastclose = radeon_driver_lastclose, .unload = radeon_driver_unload, .suspend = radeon_suspend, .resume = radeon_resume, .get_vblank_counter = radeon_get_vblank_counter, .enable_vblank = radeon_enable_vblank, .disable_vblank = radeon_disable_vblank, .master_create = radeon_master_create, .master_destroy = radeon_master_destroy, .irq_preinstall = radeon_driver_irq_preinstall, .irq_postinstall = radeon_driver_irq_postinstall, .irq_uninstall = radeon_driver_irq_uninstall, .irq_handler = radeon_driver_irq_handler, .ioctls = radeon_ioctls, .dma_ioctl = radeon_cp_buffers, .fops = &radeon_driver_old_fops, .name = DRIVER_NAME, .desc = DRIVER_DESC, .date = DRIVER_DATE, .major = DRIVER_MAJOR, .minor = DRIVER_MINOR, .patchlevel = DRIVER_PATCHLEVEL, }; #endif static struct drm_driver kms_driver; static int radeon_kick_out_firmware_fb(struct pci_dev *pdev) { struct apertures_struct *ap; bool primary = false; ap = alloc_apertures(1); if (!ap) return -ENOMEM; ap->ranges[0].base = pci_resource_start(pdev, 0); ap->ranges[0].size = pci_resource_len(pdev, 0); #ifdef CONFIG_X86 primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; #endif remove_conflicting_framebuffers(ap, "radeondrmfb", primary); kfree(ap); return 0; } static int radeon_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { int ret; /* Get rid of things like offb */ ret = radeon_kick_out_firmware_fb(pdev); if (ret) return ret; return drm_get_pci_dev(pdev, ent, &kms_driver); } static void radeon_pci_remove(struct pci_dev *pdev) { struct drm_device *dev = pci_get_drvdata(pdev); drm_put_dev(dev); } static int radeon_pmops_suspend(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); return radeon_suspend_kms(drm_dev, true, true); } static int radeon_pmops_resume(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); return radeon_resume_kms(drm_dev, true, true); } static int radeon_pmops_freeze(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); return radeon_suspend_kms(drm_dev, false, true); } static int radeon_pmops_thaw(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); return radeon_resume_kms(drm_dev, false, true); } static int radeon_pmops_runtime_suspend(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); int ret; if (!radeon_is_px(drm_dev)) { pm_runtime_forbid(dev); return -EBUSY; } drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; drm_kms_helper_poll_disable(drm_dev); vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF); ret = radeon_suspend_kms(drm_dev, false, false); pci_save_state(pdev); pci_disable_device(pdev); pci_set_power_state(pdev, PCI_D3cold); drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF; return 0; } static int radeon_pmops_runtime_resume(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); int ret; if (!radeon_is_px(drm_dev)) return -EINVAL; drm_dev->switch_power_state = DRM_SWITCH_POWER_CHANGING; pci_set_power_state(pdev, PCI_D0); pci_restore_state(pdev); ret = pci_enable_device(pdev); if (ret) return ret; pci_set_master(pdev); ret = radeon_resume_kms(drm_dev, false, false); drm_kms_helper_poll_enable(drm_dev); vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON); drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; return 0; } static int radeon_pmops_runtime_idle(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); struct drm_device *drm_dev = pci_get_drvdata(pdev); struct drm_crtc *crtc; if (!radeon_is_px(drm_dev)) { pm_runtime_forbid(dev); return -EBUSY; } list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) { if (crtc->enabled) { DRM_DEBUG_DRIVER("failing to power off - crtc active\n"); return -EBUSY; } } pm_runtime_mark_last_busy(dev); pm_runtime_autosuspend(dev); /* we don't want the main rpm_idle to call suspend - we want to autosuspend */ return 1; } long radeon_drm_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { struct drm_file *file_priv = filp->private_data; struct drm_device *dev; long ret; dev = file_priv->minor->dev; ret = pm_runtime_get_sync(dev->dev); if (ret < 0) return ret; ret = drm_ioctl(filp, cmd, arg); pm_runtime_mark_last_busy(dev->dev); pm_runtime_put_autosuspend(dev->dev); return ret; } static const struct dev_pm_ops radeon_pm_ops = { .suspend = radeon_pmops_suspend, .resume = radeon_pmops_resume, .freeze = radeon_pmops_freeze, .thaw = radeon_pmops_thaw, .poweroff = radeon_pmops_freeze, .restore = radeon_pmops_resume, .runtime_suspend = radeon_pmops_runtime_suspend, .runtime_resume = radeon_pmops_runtime_resume, .runtime_idle = radeon_pmops_runtime_idle, }; static const struct file_operations radeon_driver_kms_fops = { .owner = THIS_MODULE, .open = drm_open, .release = drm_release, .unlocked_ioctl = radeon_drm_ioctl, .mmap = radeon_mmap, .poll = drm_poll, .read = drm_read, #ifdef CONFIG_COMPAT .compat_ioctl = radeon_kms_compat_ioctl, #endif }; static struct drm_driver kms_driver = { .driver_features = DRIVER_USE_AGP | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER, .load = radeon_driver_load_kms, .open = radeon_driver_open_kms, .preclose = radeon_driver_preclose_kms, .postclose = radeon_driver_postclose_kms, .lastclose = radeon_driver_lastclose_kms, .unload = radeon_driver_unload_kms, .get_vblank_counter = radeon_get_vblank_counter_kms, .enable_vblank = radeon_enable_vblank_kms, .disable_vblank = radeon_disable_vblank_kms, .get_vblank_timestamp = radeon_get_vblank_timestamp_kms, .get_scanout_position = radeon_get_crtc_scanoutpos, #if defined(CONFIG_DEBUG_FS) .debugfs_init = radeon_debugfs_init, .debugfs_cleanup = radeon_debugfs_cleanup, #endif .irq_preinstall = radeon_driver_irq_preinstall_kms, .irq_postinstall = radeon_driver_irq_postinstall_kms, .irq_uninstall = radeon_driver_irq_uninstall_kms, .irq_handler = radeon_driver_irq_handler_kms, .ioctls = radeon_ioctls_kms, .gem_free_object = radeon_gem_object_free, .gem_open_object = radeon_gem_object_open, .gem_close_object = radeon_gem_object_close, .dumb_create = radeon_mode_dumb_create, .dumb_map_offset = radeon_mode_dumb_mmap, .dumb_destroy = drm_gem_dumb_destroy, .fops = &radeon_driver_kms_fops, .prime_handle_to_fd = drm_gem_prime_handle_to_fd, .prime_fd_to_handle = drm_gem_prime_fd_to_handle, .gem_prime_export = drm_gem_prime_export, .gem_prime_import = drm_gem_prime_import, .gem_prime_pin = radeon_gem_prime_pin, .gem_prime_unpin = radeon_gem_prime_unpin, .gem_prime_get_sg_table = radeon_gem_prime_get_sg_table, .gem_prime_import_sg_table = radeon_gem_prime_import_sg_table, .gem_prime_vmap = radeon_gem_prime_vmap, .gem_prime_vunmap = radeon_gem_prime_vunmap, .name = DRIVER_NAME, .desc = DRIVER_DESC, .date = DRIVER_DATE, .major = KMS_DRIVER_MAJOR, .minor = KMS_DRIVER_MINOR, .patchlevel = KMS_DRIVER_PATCHLEVEL, }; static struct drm_driver *driver; static struct pci_driver *pdriver; #ifdef CONFIG_DRM_RADEON_UMS static struct pci_driver radeon_pci_driver = { .name = DRIVER_NAME, .id_table = pciidlist, }; #endif static struct pci_driver radeon_kms_pci_driver = { .name = DRIVER_NAME, .id_table = pciidlist, .probe = radeon_pci_probe, .remove = radeon_pci_remove, .driver.pm = &radeon_pm_ops, }; static int __init radeon_init(void) { #ifdef CONFIG_VGA_CONSOLE if (vgacon_text_force() && radeon_modeset == -1) { DRM_INFO("VGACON disable radeon kernel modesetting.\n"); radeon_modeset = 0; } #endif /* set to modesetting by default if not nomodeset */ if (radeon_modeset == -1) radeon_modeset = 1; if (radeon_modeset == 1) { DRM_INFO("radeon kernel modesetting enabled.\n"); driver = &kms_driver; pdriver = &radeon_kms_pci_driver; driver->driver_features |= DRIVER_MODESET; driver->num_ioctls = radeon_max_kms_ioctl; radeon_register_atpx_handler(); } else { #ifdef CONFIG_DRM_RADEON_UMS DRM_INFO("radeon userspace modesetting enabled.\n"); driver = &driver_old; pdriver = &radeon_pci_driver; driver->driver_features &= ~DRIVER_MODESET; driver->num_ioctls = radeon_max_ioctl; #else DRM_ERROR("No UMS support in radeon module!\n"); return -EINVAL; #endif } /* let modprobe override vga console setting */ return drm_pci_init(driver, pdriver); } static void __exit radeon_exit(void) { drm_pci_exit(driver, pdriver); radeon_unregister_atpx_handler(); } module_init(radeon_init); module_exit(radeon_exit); MODULE_AUTHOR(DRIVER_AUTHOR); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL and additional rights");