1 /* $OpenBSD: if_rtwn.c,v 1.6 2015/08/28 00:03:53 deraadt Exp $ */
4 * Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr>
5 * Copyright (c) 2015 Stefan Sperling <stsp@openbsd.org>
6 * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org>
8 * Permission to use, copy, modify, and distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 #include <sys/cdefs.h>
22 __FBSDID("$FreeBSD$");
26 #include <sys/param.h>
28 #include <sys/mutex.h>
30 #include <sys/kernel.h>
31 #include <sys/socket.h>
32 #include <sys/systm.h>
33 #include <sys/malloc.h>
34 #include <sys/queue.h>
35 #include <sys/taskqueue.h>
37 #include <sys/endian.h>
38 #include <sys/linker.h>
40 #include <machine/bus.h>
41 #include <machine/resource.h>
45 #include <net/ethernet.h>
46 #include <net/if_media.h>
48 #include <net80211/ieee80211_var.h>
49 #include <net80211/ieee80211_radiotap.h>
51 #include <dev/rtwn/if_rtwnvar.h>
52 #include <dev/rtwn/if_rtwn_debug.h>
54 #include <dev/rtwn/pci/rtwn_pci_var.h>
56 #include <dev/rtwn/rtl8192c/pci/r92ce.h>
57 #include <dev/rtwn/rtl8192c/pci/r92ce_reg.h>
61 r92ce_get_intr_status(struct rtwn_pci_softc *pc, int *rings)
63 struct rtwn_softc *sc = &pc->pc_sc;
68 status = rtwn_read_4(sc, R92C_HISR);
69 RTWN_DPRINTF(sc, RTWN_DEBUG_INTR, "%s: HISR %08X, HISRE %04X\n",
70 __func__, status, rtwn_read_2(sc, R92C_HISRE));
71 if (status == 0 || status == 0xffffffff)
74 /* Disable interrupts. */
75 rtwn_write_4(sc, R92C_HIMR, 0);
78 rtwn_write_4(sc, R92C_HISR, status);
80 if (status & R92C_IMR_BDOK)
81 *rings |= (1 << RTWN_PCI_BEACON_QUEUE);
82 if (status & R92C_IMR_HIGHDOK)
83 *rings |= (1 << RTWN_PCI_HIGH_QUEUE);
84 if (status & R92C_IMR_MGNTDOK)
85 *rings |= (1 << RTWN_PCI_MGNT_QUEUE);
86 if (status & R92C_IMR_BKDOK)
87 *rings |= (1 << RTWN_PCI_BK_QUEUE);
88 if (status & R92C_IMR_BEDOK)
89 *rings |= (1 << RTWN_PCI_BE_QUEUE);
90 if (status & R92C_IMR_VIDOK)
91 *rings |= (1 << RTWN_PCI_VI_QUEUE);
92 if (status & R92C_IMR_VODOK)
93 *rings |= (1 << RTWN_PCI_VO_QUEUE);
96 if (status & R92C_IMR_RXFOVW)
97 ret |= RTWN_PCI_INTR_RX_OVERFLOW;
98 if (status & R92C_IMR_RDU)
99 ret |= RTWN_PCI_INTR_RX_DESC_UNAVAIL;
100 if (status & R92C_IMR_ROK)
101 ret |= RTWN_PCI_INTR_RX_DONE;
102 if (status & R92C_IMR_TXFOVW)
103 ret |= RTWN_PCI_INTR_TX_OVERFLOW;
104 if (status & R92C_IMR_PSTIMEOUT)
105 ret |= RTWN_PCI_INTR_PS_TIMEOUT;
110 #define R92C_INT_ENABLE (R92C_IMR_ROK | R92C_IMR_VODOK | R92C_IMR_VIDOK | \
111 R92C_IMR_BEDOK | R92C_IMR_BKDOK | R92C_IMR_MGNTDOK | \
112 R92C_IMR_HIGHDOK | R92C_IMR_BDOK | R92C_IMR_RDU | \
115 r92ce_enable_intr(struct rtwn_pci_softc *pc)
117 struct rtwn_softc *sc = &pc->pc_sc;
119 /* Enable interrupts. */
120 rtwn_write_4(sc, R92C_HIMR, R92C_INT_ENABLE);
124 r92ce_start_xfers(struct rtwn_softc *sc)
126 /* Clear pending interrupts. */
127 rtwn_write_4(sc, R92C_HISR, 0xffffffff);
129 /* Enable interrupts. */
130 rtwn_write_4(sc, R92C_HIMR, R92C_INT_ENABLE);
132 #undef R92C_INT_ENABLE