1 | #include <machine/rtems-bsd-kernel-space.h> |
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2 | |
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3 | /* $OpenBSD: if_rtwn.c,v 1.6 2015/08/28 00:03:53 deraadt Exp $ */ |
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4 | |
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5 | /*- |
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6 | * Copyright (c) 2010 Damien Bergamini <damien.bergamini@free.fr> |
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7 | * Copyright (c) 2015 Stefan Sperling <stsp@openbsd.org> |
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8 | * Copyright (c) 2016 Andriy Voskoboinyk <avos@FreeBSD.org> |
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9 | * |
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10 | * Permission to use, copy, modify, and distribute this software for any |
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11 | * purpose with or without fee is hereby granted, provided that the above |
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12 | * copyright notice and this permission notice appear in all copies. |
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13 | * |
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14 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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15 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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16 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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17 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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18 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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19 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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20 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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21 | */ |
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22 | |
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23 | #include <sys/cdefs.h> |
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24 | __FBSDID("$FreeBSD$"); |
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25 | |
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26 | #include <rtems/bsd/local/opt_wlan.h> |
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27 | |
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28 | #include <rtems/bsd/sys/param.h> |
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29 | #include <rtems/bsd/sys/lock.h> |
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30 | #include <sys/mutex.h> |
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31 | #include <sys/mbuf.h> |
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32 | #include <sys/kernel.h> |
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33 | #include <sys/socket.h> |
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34 | #include <sys/systm.h> |
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35 | #include <sys/malloc.h> |
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36 | #include <sys/queue.h> |
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37 | #include <sys/taskqueue.h> |
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38 | #include <sys/bus.h> |
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39 | #include <sys/endian.h> |
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40 | #include <sys/linker.h> |
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41 | |
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42 | #include <machine/bus.h> |
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43 | #include <machine/resource.h> |
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44 | #include <sys/rman.h> |
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45 | |
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46 | #include <net/if.h> |
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47 | #include <net/ethernet.h> |
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48 | #include <net/if_media.h> |
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49 | |
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50 | #include <net80211/ieee80211_var.h> |
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51 | #include <net80211/ieee80211_radiotap.h> |
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52 | |
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53 | #include <dev/rtwn/if_rtwnvar.h> |
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54 | #include <dev/rtwn/if_rtwn_debug.h> |
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55 | |
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56 | #include <dev/rtwn/pci/rtwn_pci_var.h> |
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57 | |
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58 | #include <dev/rtwn/rtl8192c/pci/r92ce.h> |
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59 | #include <dev/rtwn/rtl8192c/pci/r92ce_reg.h> |
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60 | |
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61 | |
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62 | int |
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63 | r92ce_classify_intr(struct rtwn_softc *sc, void *arg, int len __unused) |
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64 | { |
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65 | uint32_t status; |
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66 | int *rings = arg; |
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67 | int ret; |
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68 | |
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69 | *rings = 0; |
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70 | status = rtwn_read_4(sc, R92C_HISR); |
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71 | RTWN_DPRINTF(sc, RTWN_DEBUG_INTR, "%s: HISR %08X, HISRE %04X\n", |
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72 | __func__, status, rtwn_read_2(sc, R92C_HISRE)); |
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73 | if (status == 0 || status == 0xffffffff) |
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74 | return (0); |
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75 | |
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76 | /* Disable interrupts. */ |
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77 | rtwn_write_4(sc, R92C_HIMR, 0); |
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78 | |
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79 | /* Ack interrupts. */ |
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80 | rtwn_write_4(sc, R92C_HISR, status); |
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81 | |
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82 | if (status & R92C_IMR_BDOK) |
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83 | *rings |= (1 << RTWN_PCI_BEACON_QUEUE); |
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84 | if (status & R92C_IMR_HIGHDOK) |
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85 | *rings |= (1 << RTWN_PCI_HIGH_QUEUE); |
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86 | if (status & R92C_IMR_MGNTDOK) |
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87 | *rings |= (1 << RTWN_PCI_MGNT_QUEUE); |
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88 | if (status & R92C_IMR_BKDOK) |
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89 | *rings |= (1 << RTWN_PCI_BK_QUEUE); |
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90 | if (status & R92C_IMR_BEDOK) |
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91 | *rings |= (1 << RTWN_PCI_BE_QUEUE); |
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92 | if (status & R92C_IMR_VIDOK) |
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93 | *rings |= (1 << RTWN_PCI_VI_QUEUE); |
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94 | if (status & R92C_IMR_VODOK) |
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95 | *rings |= (1 << RTWN_PCI_VO_QUEUE); |
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96 | |
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97 | ret = 0; |
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98 | if (status & R92C_IMR_RXFOVW) |
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99 | ret |= RTWN_PCI_INTR_RX_OVERFLOW; |
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100 | if (status & R92C_IMR_RDU) |
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101 | ret |= RTWN_PCI_INTR_RX_DESC_UNAVAIL; |
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102 | if (status & R92C_IMR_ROK) |
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103 | ret |= RTWN_PCI_INTR_RX_DONE; |
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104 | if (status & R92C_IMR_TXFOVW) |
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105 | ret |= RTWN_PCI_INTR_TX_OVERFLOW; |
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106 | if (status & R92C_IMR_PSTIMEOUT) |
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107 | ret |= RTWN_PCI_INTR_PS_TIMEOUT; |
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108 | |
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109 | return (ret); |
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110 | } |
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111 | |
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112 | #define R92C_INT_ENABLE (R92C_IMR_ROK | R92C_IMR_VODOK | R92C_IMR_VIDOK | \ |
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113 | R92C_IMR_BEDOK | R92C_IMR_BKDOK | R92C_IMR_MGNTDOK | \ |
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114 | R92C_IMR_HIGHDOK | R92C_IMR_BDOK | R92C_IMR_RDU | \ |
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115 | R92C_IMR_RXFOVW) |
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116 | void |
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117 | r92ce_enable_intr(struct rtwn_pci_softc *pc) |
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118 | { |
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119 | struct rtwn_softc *sc = &pc->pc_sc; |
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120 | |
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121 | /* Enable interrupts. */ |
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122 | rtwn_write_4(sc, R92C_HIMR, R92C_INT_ENABLE); |
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123 | } |
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124 | |
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125 | void |
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126 | r92ce_start_xfers(struct rtwn_softc *sc) |
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127 | { |
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128 | /* Clear pending interrupts. */ |
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129 | rtwn_write_4(sc, R92C_HISR, 0xffffffff); |
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130 | |
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131 | /* Enable interrupts. */ |
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132 | rtwn_write_4(sc, R92C_HIMR, R92C_INT_ENABLE); |
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133 | } |
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134 | #undef R92C_INT_ENABLE |
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