()
| 1264 | |
| 1265 | #[test] |
| 1266 | fn add_capability() { |
| 1267 | let mut cfg = PciConfiguration::new( |
| 1268 | 0x1234, |
| 1269 | 0x5678, |
| 1270 | 0x1, |
| 1271 | PciClassCode::MultimediaController, |
| 1272 | &PciMultimediaSubclass::AudioController, |
| 1273 | None, |
| 1274 | PciHeaderType::Device, |
| 1275 | 0xABCD, |
| 1276 | 0x2468, |
| 1277 | None, |
| 1278 | None, |
| 1279 | ); |
| 1280 | |
| 1281 | // Add two capabilities with different contents. |
| 1282 | let cap1 = TestCap { len: 4, foo: 0xAA }; |
| 1283 | let cap1_offset = cfg.add_capability(&cap1).unwrap(); |
| 1284 | assert_eq!(cap1_offset % 4, 0); |
| 1285 | |
| 1286 | let cap2 = TestCap { |
| 1287 | len: 0x04, |
| 1288 | foo: 0x55, |
| 1289 | }; |
| 1290 | let cap2_offset = cfg.add_capability(&cap2).unwrap(); |
| 1291 | assert_eq!(cap2_offset % 4, 0); |
| 1292 | |
| 1293 | // The capability list head should be pointing to cap1. |
| 1294 | let cap_ptr = cfg.read_reg(CAPABILITY_LIST_HEAD_OFFSET / 4) & 0xFF; |
| 1295 | assert_eq!(cap1_offset, cap_ptr as usize); |
| 1296 | |
| 1297 | // Verify the contents of the capabilities. |
| 1298 | let cap1_data = cfg.read_reg(cap1_offset / 4); |
| 1299 | assert_eq!(cap1_data & 0xFF, 0x09); // capability ID |
| 1300 | assert_eq!((cap1_data >> 8) & 0xFF, cap2_offset as u32); // next capability pointer |
| 1301 | assert_eq!((cap1_data >> 16) & 0xFF, 0x04); // cap1.len |
| 1302 | assert_eq!((cap1_data >> 24) & 0xFF, 0xAA); // cap1.foo |
| 1303 | |
| 1304 | let cap2_data = cfg.read_reg(cap2_offset / 4); |
| 1305 | assert_eq!(cap2_data & 0xFF, 0x09); // capability ID |
| 1306 | assert_eq!((cap2_data >> 8) & 0xFF, 0x00); // next capability pointer |
| 1307 | assert_eq!((cap2_data >> 16) & 0xFF, 0x04); // cap2.len |
| 1308 | assert_eq!((cap2_data >> 24) & 0xFF, 0x55); // cap2.foo |
| 1309 | } |
| 1310 | |
| 1311 | #[derive(Copy, Clone)] |
| 1312 | enum TestPi { |
nothing calls this directly
no test coverage detected