1 | use std::{ffi::c_uint, io, os::unix::io::BorrowedFd}; |
2 | |
3 | use drm_sys::*; |
4 | use rustix::ioctl::{ |
5 | ioctl, Getter, NoArg, NoneOpcode, ReadOpcode, ReadWriteOpcode, Setter, Updater, WriteOpcode, |
6 | }; |
7 | |
8 | macro_rules! ioctl_readwrite { |
9 | ($name:ident, $ioty:expr, $nr:expr, $ty:ty) => { |
10 | pub unsafe fn $name(fd: BorrowedFd, data: &mut $ty) -> io::Result<()> { |
11 | type Opcode = ReadWriteOpcode<$ioty, $nr, $ty>; |
12 | Ok(ioctl(fd, Updater::<Opcode, $ty>::new(data))?) |
13 | } |
14 | }; |
15 | } |
16 | |
17 | macro_rules! ioctl_read { |
18 | ($name:ident, $ioty:expr, $nr:expr, $ty:ty) => { |
19 | pub unsafe fn $name(fd: BorrowedFd) -> io::Result<$ty> { |
20 | type Opcode = ReadOpcode<$ioty, $nr, $ty>; |
21 | Ok(ioctl(fd, Getter::<Opcode, $ty>::new())?) |
22 | } |
23 | }; |
24 | } |
25 | |
26 | macro_rules! ioctl_write_ptr { |
27 | ($name:ident, $ioty:expr, $nr:expr, $ty:ty) => { |
28 | pub unsafe fn $name(fd: BorrowedFd, data: &$ty) -> io::Result<()> { |
29 | type Opcode = WriteOpcode<$ioty, $nr, $ty>; |
30 | Ok(ioctl(fd, Setter::<Opcode, $ty>::new(*data))?) |
31 | } |
32 | }; |
33 | } |
34 | |
35 | macro_rules! ioctl_none { |
36 | ($name:ident, $ioty:expr, $nr:expr) => { |
37 | pub unsafe fn $name(fd: BorrowedFd) -> io::Result<()> { |
38 | type Opcode = NoneOpcode<$ioty, $nr, ()>; |
39 | Ok(ioctl(fd, NoArg::<Opcode>::new())?) |
40 | } |
41 | }; |
42 | } |
43 | |
44 | /// Gets the bus ID of the device |
45 | /// |
46 | /// # Locks DRM mutex: Yes |
47 | /// # Permissions: None |
48 | /// # Nodes: Primary |
49 | ioctl_readwrite!(get_bus_id, DRM_IOCTL_BASE, 0x01, drm_unique); |
50 | |
51 | /// Get information about the client |
52 | /// |
53 | /// # Locks DRM mutex: No |
54 | /// # Permissions: None |
55 | /// # Nodes: Primary |
56 | ioctl_readwrite!(get_client, DRM_IOCTL_BASE, 0x05, drm_client); |
57 | |
58 | /// Get capabilities of the device. |
59 | /// |
60 | /// # Locks DRM mutex: No |
61 | /// # Permissions: None |
62 | /// # Nodes: Primary, Render |
63 | ioctl_readwrite!(get_cap, DRM_IOCTL_BASE, 0x0c, drm_get_cap); |
64 | |
65 | /// Tells the device we understand a capability |
66 | /// |
67 | /// # Locks DRM mutex: Yes |
68 | /// # Permissions: None |
69 | /// # Nodes: Primary |
70 | ioctl_write_ptr!(set_cap, DRM_IOCTL_BASE, 0x0d, drm_set_client_cap); |
71 | |
72 | /// Sets the requested interface version |
73 | /// |
74 | /// # Locks DRM mutex: Yes |
75 | /// # Permissions: Master |
76 | /// # Nodes: Primary, control |
77 | ioctl_readwrite!(set_version, DRM_IOCTL_BASE, 0x07, drm_set_version); |
78 | |
79 | /// Gets the current interface version |
80 | /// |
81 | /// # Locks DRM mutex: No |
82 | /// # Permissions: None |
83 | /// # Nodes: All |
84 | ioctl_readwrite!(get_version, DRM_IOCTL_BASE, 0x00, drm_version); |
85 | |
86 | /// Generates the client's authentication token |
87 | /// |
88 | /// # Locks DRM mutex: No |
89 | /// # Permissions: None |
90 | /// # Nodes: Primary |
91 | ioctl_read!(get_token, DRM_IOCTL_BASE, 0x02, drm_auth); |
92 | |
93 | /// Authenticates a client via their authentication token |
94 | /// |
95 | /// # Locks DRM mutex: No |
96 | /// # Permissions: Auth, Master |
97 | /// # Nodes: Primary |
98 | ioctl_write_ptr!(auth_token, DRM_IOCTL_BASE, 0x11, drm_auth); |
99 | |
100 | /// Acquires the DRM Master lock |
101 | /// |
102 | /// # Locks DRM mutex: No |
103 | /// # Permissions: Root |
104 | /// # Nodes: Primary |
105 | ioctl_none!(acquire_master, DRM_IOCTL_BASE, 0x1e); |
106 | |
107 | /// Drops the DRM Master lock |
108 | /// |
109 | /// # Locks DRM mutex: No |
110 | /// # Permissions: Root |
111 | /// # Nodes: Primary |
112 | ioctl_none!(release_master, DRM_IOCTL_BASE, 0x1f); |
113 | |
114 | /// Gets the IRQ number |
115 | /// |
116 | /// # Locks DRM mutex: No |
117 | /// # Permissions: None |
118 | /// # Nodes: Primary |
119 | ioctl_readwrite!(get_irq_from_bus_id, DRM_IOCTL_BASE, 0x03, drm_irq_busid); |
120 | |
121 | /// Enable the vblank interrupt and sleep until the requested sequence occurs |
122 | /// |
123 | /// # Locks DRM mutex: No |
124 | /// # Permissions: None |
125 | /// # Nodes: Primary |
126 | ioctl_readwrite!(wait_vblank, DRM_IOCTL_BASE, 0x3a, drm_wait_vblank); |
127 | |
128 | pub(crate) mod mode { |
129 | use super::*; |
130 | |
131 | /// Modesetting resources |
132 | ioctl_readwrite!(get_resources, DRM_IOCTL_BASE, 0xA0, drm_mode_card_res); |
133 | |
134 | ioctl_readwrite!( |
135 | get_plane_resources, |
136 | DRM_IOCTL_BASE, |
137 | 0xB5, |
138 | drm_mode_get_plane_res |
139 | ); |
140 | |
141 | /// Connector related functions |
142 | ioctl_readwrite!(get_connector, DRM_IOCTL_BASE, 0xA7, drm_mode_get_connector); |
143 | |
144 | /// Encoder related functions |
145 | ioctl_readwrite!(get_encoder, DRM_IOCTL_BASE, 0xA6, drm_mode_get_encoder); |
146 | |
147 | /// CRTC related functions |
148 | ioctl_readwrite!(get_crtc, DRM_IOCTL_BASE, 0xA1, drm_mode_crtc); |
149 | ioctl_readwrite!(set_crtc, DRM_IOCTL_BASE, 0xA2, drm_mode_crtc); |
150 | |
151 | /// Gamma related functions |
152 | ioctl_readwrite!(get_gamma, DRM_IOCTL_BASE, 0xA4, drm_mode_crtc_lut); |
153 | ioctl_readwrite!(set_gamma, DRM_IOCTL_BASE, 0xA5, drm_mode_crtc_lut); |
154 | |
155 | // TODO: Figure out GAMMA LUT arrays |
156 | |
157 | /// FB related functions |
158 | ioctl_readwrite!(get_fb, DRM_IOCTL_BASE, 0xAD, drm_mode_fb_cmd); |
159 | ioctl_readwrite!(get_fb2, DRM_IOCTL_BASE, 0xCE, drm_mode_fb_cmd2); |
160 | ioctl_readwrite!(add_fb, DRM_IOCTL_BASE, 0xAE, drm_mode_fb_cmd); |
161 | ioctl_readwrite!(add_fb2, DRM_IOCTL_BASE, 0xB8, drm_mode_fb_cmd2); |
162 | ioctl_readwrite!(rm_fb, DRM_IOCTL_BASE, 0xAF, c_uint); |
163 | |
164 | /// Plane related functions |
165 | ioctl_readwrite!(get_plane, DRM_IOCTL_BASE, 0xB6, drm_mode_get_plane); |
166 | |
167 | ioctl_readwrite!(set_plane, DRM_IOCTL_BASE, 0xB7, drm_mode_set_plane); |
168 | |
169 | /// Dumbbuffer related functions |
170 | ioctl_readwrite!(create_dumb, DRM_IOCTL_BASE, 0xB2, drm_mode_create_dumb); |
171 | |
172 | ioctl_readwrite!(map_dumb, DRM_IOCTL_BASE, 0xB3, drm_mode_map_dumb); |
173 | |
174 | ioctl_readwrite!(destroy_dumb, DRM_IOCTL_BASE, 0xB4, drm_mode_destroy_dumb); |
175 | |
176 | /// Cursor related functions |
177 | ioctl_readwrite!(cursor, DRM_IOCTL_BASE, 0xA3, drm_mode_cursor); |
178 | ioctl_readwrite!(cursor2, DRM_IOCTL_BASE, 0xBB, drm_mode_cursor2); |
179 | |
180 | /// Property related functions |
181 | ioctl_readwrite!(get_property, DRM_IOCTL_BASE, 0xAA, drm_mode_get_property); |
182 | |
183 | ioctl_readwrite!( |
184 | connector_set_property, |
185 | DRM_IOCTL_BASE, |
186 | 0xAB, |
187 | drm_mode_connector_set_property |
188 | ); |
189 | |
190 | ioctl_readwrite!( |
191 | obj_get_properties, |
192 | DRM_IOCTL_BASE, |
193 | 0xB9, |
194 | drm_mode_obj_get_properties |
195 | ); |
196 | |
197 | ioctl_readwrite!( |
198 | obj_set_property, |
199 | DRM_IOCTL_BASE, |
200 | 0xBA, |
201 | drm_mode_obj_set_property |
202 | ); |
203 | |
204 | /// Property blobs |
205 | ioctl_readwrite!(get_blob, DRM_IOCTL_BASE, 0xAC, drm_mode_get_blob); |
206 | |
207 | // TODO: Property blobs probably require a large buffer |
208 | |
209 | ioctl_readwrite!(create_blob, DRM_IOCTL_BASE, 0xBD, drm_mode_create_blob); |
210 | |
211 | ioctl_readwrite!(destroy_blob, DRM_IOCTL_BASE, 0xBE, drm_mode_destroy_blob); |
212 | |
213 | /// Atomic modesetting related functions |
214 | ioctl_readwrite!( |
215 | crtc_page_flip, |
216 | DRM_IOCTL_BASE, |
217 | 0xB0, |
218 | drm_mode_crtc_page_flip |
219 | ); |
220 | |
221 | ioctl_readwrite!(dirty_fb, DRM_IOCTL_BASE, 0xB1, drm_mode_fb_dirty_cmd); |
222 | |
223 | ioctl_readwrite!(atomic, DRM_IOCTL_BASE, 0xBC, drm_mode_atomic); |
224 | |
225 | ioctl_readwrite!(create_lease, DRM_IOCTL_BASE, 0xC6, drm_mode_create_lease); |
226 | ioctl_readwrite!(list_lessees, DRM_IOCTL_BASE, 0xC7, drm_mode_list_lessees); |
227 | ioctl_readwrite!(get_lease, DRM_IOCTL_BASE, 0xC8, drm_mode_get_lease); |
228 | ioctl_readwrite!(revoke_lease, DRM_IOCTL_BASE, 0xC9, drm_mode_revoke_lease); |
229 | } |
230 | |
231 | pub(crate) mod gem { |
232 | use super::*; |
233 | |
234 | /// GEM related functions |
235 | ioctl_readwrite!(open, DRM_IOCTL_BASE, 0x0b, drm_gem_open); |
236 | ioctl_write_ptr!(close, DRM_IOCTL_BASE, 0x09, drm_gem_close); |
237 | |
238 | /// Converts a buffer handle into a dma-buf file descriptor. |
239 | ioctl_readwrite!(prime_handle_to_fd, DRM_IOCTL_BASE, 0x2d, drm_prime_handle); |
240 | |
241 | /// Converts a dma-buf file descriptor into a buffer handle. |
242 | ioctl_readwrite!(prime_fd_to_handle, DRM_IOCTL_BASE, 0x2e, drm_prime_handle); |
243 | } |
244 | |
245 | pub(crate) mod syncobj { |
246 | use super::*; |
247 | |
248 | /// Creates a syncobj. |
249 | ioctl_readwrite!(create, DRM_IOCTL_BASE, 0xBF, drm_syncobj_create); |
250 | /// Destroys a syncobj. |
251 | ioctl_readwrite!(destroy, DRM_IOCTL_BASE, 0xC0, drm_syncobj_destroy); |
252 | /// Exports a syncobj as an inter-process file descriptor or as a poll()-able sync file. |
253 | ioctl_readwrite!(handle_to_fd, DRM_IOCTL_BASE, 0xC1, drm_syncobj_handle); |
254 | /// Imports a file descriptor exported by [`handle_to_fd`] back into a process-local handle. |
255 | ioctl_readwrite!(fd_to_handle, DRM_IOCTL_BASE, 0xC2, drm_syncobj_handle); |
256 | /// Waits for one or more syncobjs to become signalled. |
257 | ioctl_readwrite!(wait, DRM_IOCTL_BASE, 0xC3, drm_syncobj_wait); |
258 | /// Resets (un-signals) one or more syncobjs. |
259 | ioctl_readwrite!(reset, DRM_IOCTL_BASE, 0xC4, drm_syncobj_array); |
260 | /// Signals one or more syncobjs. |
261 | ioctl_readwrite!(signal, DRM_IOCTL_BASE, 0xC5, drm_syncobj_array); |
262 | |
263 | /// Waits for one or more specific timeline syncobj points. |
264 | ioctl_readwrite!( |
265 | timeline_wait, |
266 | DRM_IOCTL_BASE, |
267 | 0xCA, |
268 | drm_syncobj_timeline_wait |
269 | ); |
270 | /// Queries for state of one or more timeline syncobjs. |
271 | ioctl_readwrite!(query, DRM_IOCTL_BASE, 0xCB, drm_syncobj_timeline_array); |
272 | /// Transfers one timeline syncobj point to another. |
273 | ioctl_readwrite!(transfer, DRM_IOCTL_BASE, 0xCC, drm_syncobj_transfer); |
274 | /// Signals one or more specific timeline syncobj points. |
275 | ioctl_readwrite!( |
276 | timeline_signal, |
277 | DRM_IOCTL_BASE, |
278 | 0xCD, |
279 | drm_syncobj_timeline_array |
280 | ); |
281 | /// Register an eventfd to be signalled by a syncobj. |
282 | ioctl_readwrite!(eventfd, DRM_IOCTL_BASE, 0xCF, drm_syncobj_eventfd); |
283 | } |
284 | |