/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright 2012-2019 Red Hat * * This file is subject to the terms and conditions of the GNU General * Public License version 2. See the file COPYING in the main * directory of this archive for more details. * * Authors: Matthew Garrett * Dave Airlie * Gerd Hoffmann * * Portions of this code derived from cirrusfb.c: * drivers/video/cirrusfb.c - driver for Cirrus Logic chipsets * * Copyright 1999-2001 Jeff Garzik <[email protected]> */ #include <linux/iosys-map.h> #include <linux/module.h> #include <linux/pci.h> #include <video/cirrus.h> #include <video/vga.h> #include <drm/drm_aperture.h> #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_atomic_state_helper.h> #include <drm/drm_connector.h> #include <drm/drm_damage_helper.h> #include <drm/drm_drv.h> #include <drm/drm_edid.h> #include <drm/drm_fbdev_shmem.h> #include <drm/drm_file.h> #include <drm/drm_format_helper.h> #include <drm/drm_fourcc.h> #include <drm/drm_framebuffer.h> #include <drm/drm_gem_atomic_helper.h> #include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_gem_shmem_helper.h> #include <drm/drm_ioctl.h> #include <drm/drm_managed.h> #include <drm/drm_modeset_helper_vtables.h> #include <drm/drm_module.h> #include <drm/drm_probe_helper.h> #define DRIVER_NAME … #define DRIVER_DESC … #define DRIVER_DATE … #define DRIVER_MAJOR … #define DRIVER_MINOR … #define CIRRUS_MAX_PITCH … #define CIRRUS_VRAM_SIZE … struct cirrus_device { … }; #define to_cirrus(_dev) … struct cirrus_primary_plane_state { … }; static inline struct cirrus_primary_plane_state * to_cirrus_primary_plane_state(struct drm_plane_state *plane_state) { return container_of(plane_state, struct cirrus_primary_plane_state, base.base); }; /* ------------------------------------------------------------------ */ /* * The meat of this driver. The core passes us a mode and we have to program * it. The modesetting here is the bare minimum required to satisfy the qemu * emulation of this hardware, and running this against a real device is * likely to result in an inadequately programmed mode. We've already had * the opportunity to modify the mode, so whatever we receive here should * be something that can be correctly programmed and displayed */ #define SEQ_INDEX … #define SEQ_DATA … static u8 rreg_seq(struct cirrus_device *cirrus, u8 reg) { … } static void wreg_seq(struct cirrus_device *cirrus, u8 reg, u8 val) { … } #define CRT_INDEX … #define CRT_DATA … static u8 rreg_crt(struct cirrus_device *cirrus, u8 reg) { … } static void wreg_crt(struct cirrus_device *cirrus, u8 reg, u8 val) { … } #define GFX_INDEX … #define GFX_DATA … static void wreg_gfx(struct cirrus_device *cirrus, u8 reg, u8 val) { … } #define VGA_DAC_MASK … static void wreg_hdr(struct cirrus_device *cirrus, u8 val) { … } static const struct drm_format_info *cirrus_convert_to(struct drm_framebuffer *fb) { … } static const struct drm_format_info *cirrus_format(struct drm_framebuffer *fb) { … } static int cirrus_pitch(struct drm_framebuffer *fb) { … } static void cirrus_set_start_address(struct cirrus_device *cirrus, u32 offset) { … } static void cirrus_mode_set(struct cirrus_device *cirrus, struct drm_display_mode *mode) { … } static void cirrus_format_set(struct cirrus_device *cirrus, const struct drm_format_info *format) { … } static void cirrus_pitch_set(struct cirrus_device *cirrus, unsigned int pitch) { … } /* ------------------------------------------------------------------ */ /* cirrus display pipe */ static const uint32_t cirrus_primary_plane_formats[] = …; static const uint64_t cirrus_primary_plane_format_modifiers[] = …; static int cirrus_primary_plane_helper_atomic_check(struct drm_plane *plane, struct drm_atomic_state *state) { … } static void cirrus_primary_plane_helper_atomic_update(struct drm_plane *plane, struct drm_atomic_state *state) { … } static const struct drm_plane_helper_funcs cirrus_primary_plane_helper_funcs = …; static struct drm_plane_state * cirrus_primary_plane_atomic_duplicate_state(struct drm_plane *plane) { … } static void cirrus_primary_plane_atomic_destroy_state(struct drm_plane *plane, struct drm_plane_state *plane_state) { … } static void cirrus_reset_primary_plane(struct drm_plane *plane) { … } static const struct drm_plane_funcs cirrus_primary_plane_funcs = …; static int cirrus_crtc_helper_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *state) { … } static void cirrus_crtc_helper_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_state *state) { … } static const struct drm_crtc_helper_funcs cirrus_crtc_helper_funcs = …; static const struct drm_crtc_funcs cirrus_crtc_funcs = …; static const struct drm_encoder_funcs cirrus_encoder_funcs = …; static int cirrus_connector_helper_get_modes(struct drm_connector *connector) { … } static const struct drm_connector_helper_funcs cirrus_connector_helper_funcs = …; static const struct drm_connector_funcs cirrus_connector_funcs = …; static int cirrus_pipe_init(struct cirrus_device *cirrus) { … } /* ------------------------------------------------------------------ */ /* cirrus framebuffers & mode config */ static enum drm_mode_status cirrus_mode_config_mode_valid(struct drm_device *dev, const struct drm_display_mode *mode) { … } static const struct drm_mode_config_funcs cirrus_mode_config_funcs = …; static int cirrus_mode_config_init(struct cirrus_device *cirrus) { … } /* ------------------------------------------------------------------ */ DEFINE_DRM_GEM_FOPS(cirrus_fops); static const struct drm_driver cirrus_driver = …; static int cirrus_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { … } static void cirrus_pci_remove(struct pci_dev *pdev) { … } static void cirrus_pci_shutdown(struct pci_dev *pdev) { … } static const struct pci_device_id pciidlist[] = …; static struct pci_driver cirrus_pci_driver = …; drm_module_pci_driver(…) MODULE_DEVICE_TABLE(pci, pciidlist); MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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