xref: /haiku/src/add-ons/kernel/drivers/network/wlan/ralinkwifi/glue.c (revision 204dee708a999d5a71d0cb9497650ee7cef85d0a)
1 /*
2  * Copyright 2009, Colin Günther, coling@gmx.de.
3  * All Rights Reserved. Distributed under the terms of the MIT License.
4  */
5 
6 
7 #include <sys/bus.h>
8 #include <sys/kernel.h>
9 
10 #include <dev/pci/pcivar.h>
11 
12 #include <machine/bus.h>
13 
14 #include <net/if.h>
15 #include <net/if_media.h>
16 
17 #include <net80211/ieee80211_var.h>
18 #include <net80211/ieee80211_amrr.h>
19 
20 #include <dev/ral/rt2560reg.h>
21 #include <dev/ral/rt2560var.h>
22 #include <dev/ral/rt2860reg.h>
23 #include <dev/ral/rt2860var.h>
24 
25 
26 HAIKU_FBSD_WLAN_DRIVER_GLUE(ralinkwifi, ral, pci)
27 HAIKU_DRIVER_REQUIREMENTS(FBSD_TASKQUEUES | FBSD_SWI_TASKQUEUE | FBSD_WLAN);
28 HAIKU_FIRMWARE_VERSION(0);
29 HAIKU_FIRMWARE_NAME_MAP(4) = {{"rt2561fw", "rt2561.bin"},
30 	{"rt2561sfw", "rt2561s.bin"}, {"rt2661fw", "rt2661.bin"},
31 	{"rt2860fw", "rt2860.bin"}};
32 
33 NO_HAIKU_FBSD_MII_DRIVER();
34 NO_HAIKU_REENABLE_INTERRUPTS();
35 
36 
37 #define RT2661_INT_MASK_CSR			0x346c
38 #define RT2661_MCU_INT_MASK_CSR		0x0018
39 
40 
41 int
42 HAIKU_CHECK_DISABLE_INTERRUPTS(device_t dev)
43 {
44 	struct rt2560_softc* sc = (struct rt2560_softc*)device_get_softc(dev);
45 		// sc_ifp is common between context data structures
46 	struct ifnet* ifp = sc->sc_ifp;
47 
48 	switch (pci_get_device(dev)) {
49 		case 0x0201:
50 			// disable interrupts
51 			RAL_WRITE(sc, RT2560_CSR8, 0xffffffff);
52 
53 			if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
54 				// don't re-enable interrupts if we're shutting down
55 				return 0;
56 			}
57 			break;
58 		case 0x0301:
59 		case 0x0302:
60 		case 0x0401:
61 			// disable MAC and MCU interrupts
62 			RAL_WRITE(sc, RT2661_INT_MASK_CSR, 0xffffff7f);
63 			RAL_WRITE(sc, RT2661_MCU_INT_MASK_CSR, 0xffffffff);
64 
65 			if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
66 				// don't re-enable interrupts if we're shutting down
67 				return 0;
68 			}
69 			break;
70 		default:
71 		{
72 			uint32 r;
73 			struct rt2860_softc* sc =
74 				(struct rt2860_softc*)device_get_softc(dev);
75 			r = RAL_READ(sc, RT2860_INT_STATUS);
76 			if (r == 0 || r == 0xffffffff)
77 				return 0;
78 
79 			atomic_set((int32*)&sc->sc_intr_status, r);
80 			break;
81 		}
82 	}
83 
84 	return 1;
85 }
86