intel/ipw2x00/libipw_geo.c

31 int libipw_is_valid_channel(struct libipw_device *ieee, u8 channel)
37 	if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
40 	if (ieee->freq_band & LIBIPW_24GHZ_BAND)
41 		for (i = 0; i < ieee->geo.bg_channels; i++)
45 			if ((ieee->geo.bg[i].channel == channel) &&
46 			    !(ieee->geo.bg[i].flags & LIBIPW_CH_INVALID) &&
47 			    (!(ieee->mode & IEEE_G) ||
48 			     !(ieee->geo.bg[i].flags & LIBIPW_CH_B_ONLY)))
51 	if (ieee->freq_band & LIBIPW_52GHZ_BAND)
52 		for (i = 0; i < ieee->geo.a_channels; i++)
53 			if ((ieee->geo.a[i].channel == channel) &&
54 			    !(ieee->geo.a[i].flags & LIBIPW_CH_INVALID))
60 int libipw_channel_to_index(struct libipw_device *ieee, u8 channel)
66 	if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
69 	if (ieee->freq_band & LIBIPW_24GHZ_BAND)
70 		for (i = 0; i < ieee->geo.bg_channels; i++)
71 			if (ieee->geo.bg[i].channel == channel)
74 	if (ieee->freq_band & LIBIPW_52GHZ_BAND)
75 		for (i = 0; i < ieee->geo.a_channels; i++)
76 			if (ieee->geo.a[i].channel == channel)
82 u32 libipw_channel_to_freq(struct libipw_device * ieee, u8 channel)
88 	if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
91 	ch = libipw_get_channel(ieee, channel);
97 u8 libipw_freq_to_channel(struct libipw_device * ieee, u32 freq)
103 	if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
108 	if (ieee->freq_band & LIBIPW_24GHZ_BAND)
109 		for (i = 0; i < ieee->geo.bg_channels; i++)
110 			if (ieee->geo.bg[i].freq == freq)
111 				return ieee->geo.bg[i].channel;
113 	if (ieee->freq_band & LIBIPW_52GHZ_BAND)
114 		for (i = 0; i < ieee->geo.a_channels; i++)
115 			if (ieee->geo.a[i].freq == freq)
116 				return ieee->geo.a[i].channel;
121 void libipw_set_geo(struct libipw_device *ieee,
124 	memcpy(ieee->geo.name, geo->name, 3);
125 	ieee->geo.name[3] = '\0';
126 	ieee->geo.bg_channels = geo->bg_channels;
127 	ieee->geo.a_channels = geo->a_channels;
128 	memcpy(ieee->geo.bg, geo->bg, geo->bg_channels *
130 	memcpy(ieee->geo.a, geo->a, ieee->geo.a_channels *
134 const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee)
136 	return &ieee->geo;
139 u8 libipw_get_channel_flags(struct libipw_device * ieee, u8 channel)
141 	int index = libipw_channel_to_index(ieee, channel);
147 		return ieee->geo.bg[index].flags;
149 	return ieee->geo.a[index].flags;
159 						      *ieee, u8 channel)
161 	int index = libipw_channel_to_index(ieee, channel);
167 		return &ieee->geo.bg[index];
169 	return &ieee->geo.a[index];