drivers/bcmdhd/bcmwifi_channels.c

82  *       These fields specify the center channel of the first and the second 80MHz
97  *      Chanspec        BW        Center Ch  Channel Range  Primary Ch
111  *      Chanspec        BW        Center Ch  Channel Range  Primary Ch
212 /* bw in MHz, return the channel count from the center channel to the
243  * given the center channel and BW
251 /* return side band number given center channel and primary20 channel
284 /* return primary20 channel given center channel and side band */
312 	/* The 6GHz center channels start at 7, and have a spacing of 16 */  in channel_6g_80mhz_to_id()
344 	/* The 6GHz center channels start at 15, and have a spacing of 32 */  in channel_6g_160mhz_to_id()
360 	/* The 6GHz center channels start at 23, and have a spacing of 48 */  in channel_6g_240mhz_to_id()
376 	/* The 6GHz center channels start at 31, and have a spacing of 64 */  in channel_6g_320mhz_to_id()
387  * This function returns the the 6GHz 240MHz center channel for the given chanspec 240MHz ID
391  * @return   Return the center channel number, or 0 on error.
400 		/* The 6GHz center channels have a spacing of 48  in wf_chspec_6G_id240_to_ch()
401 		 * starting from the first 240MHz center  in wf_chspec_6G_id240_to_ch()
409 /* Retrive the chan_id and convert it to center channel */
423  * This function returns the the 6GHz 320MHz center channel for the given chanspec 320MHz ID
427  * @return   Return the center channel number, or 0 on error.
436 		/* The 6GHz center channels have a spacing of 64  in wf_chspec_6G_id320_to_ch()
437 		 * starting from the first 320MHz center  in wf_chspec_6G_id320_to_ch()
445 /* Retrive the chan_id and convert it to center channel */
709 	 * a center channel (or two) and sideband.  in wf_chspec_aton()
891 	 *   or the center channel for higher BW,  in wf_chspec_valid()
892 	 *   or both center channels for an 80+80MHz channel,  in wf_chspec_valid()
1135 		/* step through low then high primary sideband, then next 40 center channel */  in wf_chanspec_iter_next_2g()
1141 			/* move to next 40M center and lower primary 20 */  in wf_chanspec_iter_next_2g()
1424  * Verify that the center channel is a valid 40MHz center channel according to 802.11.
1426  * @param  center_channel   40MHz center channel to validate
1449 		/* Use the simple pattern of 6GHz center channels */  in wf_valid_40MHz_center_chan()
1461  * Verify that the center channel is a valid 80MHz center channel according to 802.11.
1463  * @param  center_channel   80MHz center channel to validate
1472 		/* use the 80MHz ID lookup to validate the center channel */  in wf_valid_80MHz_center_chan()
1477 		/* use the 80MHz ID lookup to validate the center channel */  in wf_valid_80MHz_center_chan()
1487  * Verify that the center channel is a valid 160MHz center channel according to 802.11.
1489  * @param  center_channel   160MHz center channel to validate
1507 		/* Use the simple pattern of 6GHz center channels */  in wf_valid_160MHz_center_chan()
1519  * Verify that the center channel is a valid 240MHz center channel according to 802.11.
1521  * @param  center_channel   240MHz center channel to validate
1530 		/* Use the simple pattern of 6GHz center channels */  in wf_valid_240MHz_center_chan()
1542  * Verify that the center channel is a valid 320MHz center channel according to 802.11.
1544  * @param  center_channel   320MHz center channel to validate
1553 		/* Use the simple pattern of 6GHz center channels */  in wf_valid_320MHz_center_chan()
1615  * the center channel number, and the band.
1618  * @param  center_channel   center channel of the 40MHz channel
1632 	/* Calculate the sideband value for the center and primary channel.  in wf_create_40MHz_chspec()
1637 	/* return err if the sideband was bad or the center channel is not  in wf_create_40MHz_chspec()
1668 	/* find the center channel */  in wf_create_40MHz_chspec_primary_sb()
1682  * the center channel number, and the band.
1685  * @param  center_channel   center channel of the 80MHz channel
1699 	/* Calculate the sideband value for the center and primary channel.  in wf_create_80MHz_chspec()
1704 	/* return err if the sideband was bad or the center channel is not  in wf_create_80MHz_chspec()
1718  * the center channel number, and the band.
1721  * @param  center_channel   center channel of the 160MHz channel
1734 	/* Calculate the sideband value for the center and primary channel.  in wf_create_160MHz_chspec()
1739 	/* return err if the sideband was bad or the center channel is not  in wf_create_160MHz_chspec()
1753  * the center channel numbers for each frequency segment, and the band.
1756  * @param  chan0            center channel number of one frequency segment
1757  * @param  chan1            center channel number of the other frequency segment
1760  * Parameters chan0 and chan1 are valid 80 MHz center channel numbers for the given band.
1807 			/* no match for pri_ch to either 80MHz center channel */  in wf_create_8080MHz_chspec()
1826  * the center channel numbers for each frequency segment, and the band.
1829  * @param  chan0            center channel number of one frequency segment
1830  * @param  chan1            center channel number of the other frequency segment
1833  * Parameters chan0 and chan1 are valid 160 MHz center channel numbers for the given band.
1880 			/* no match for pri_ch to either 160MHz center channel */  in wf_create_160160MHz_chspec()
1899  * the center channel number, and the band.
1902  * @param  chan             center channel number
1925 	/* Calculate the sideband value for the center and primary channel.  in wf_create_240MHz_chspec()
1930 	/* return err if the sideband was bad or the center channel is not  in wf_create_240MHz_chspec()
1947  * the center channel number, and the band.
1950  * @param  chan             center channel number
1953  * Parameters chan is valid 320 MHz center channel numbers for the given band.
1976 	/* Calculate the sideband value for the center and primary channel.  in wf_create_320MHz_chspec()
1981 	/* return err if the sideband was bad or the center channel is not  in wf_create_320MHz_chspec()
1998  * the center channel number, channel width, and the band. The channel width
2004  * @param  center_channel   center channel of the channel
2008  * The center_channel can be one of the 802.11 spec valid center channels
2021 	/* 20MHz channels have matching center and primary channels */  in wf_create_chspec()
2101 		/* For 5GHz, use the lookup tables for valid 40/80/160 center channels  in wf_create_chspec_from_primary()
2102 		 * and search for a center channel compatible with the given primary channel.  in wf_create_chspec_from_primary()
2132 		/* For 6GHz, use a formula to calculate the valid 40/80/160 center channel from  in wf_create_chspec_from_primary()
2137 		uint base, center;  in wf_create_chspec_from_primary()  local
2160 			/* calculate the center channel from the base channel */  in wf_create_chspec_from_primary()
2161 			center = base + center_chan_to_edge(bw);  in wf_create_chspec_from_primary()
2163 			chspec = wf_create_chspec(primary_channel, center, bw, band);  in wf_create_chspec_from_primary()
2318 	/* check for no matching sb/center */  in wf_channel2chspec()
2379  * @param   freq            frequency in MHz of the channel center
2476  * Return the center frequency in MHz of the given channel and base frequency.
2534  *	center_channel   - center frequecny of the 80Mhz channel
2568  *    chan0 - center channel number of one frequency segment
2569  *    chan1 - center channel number of the other frequency segment
2606 			/* no match for pri_ch to either 80MHz center channel */  in wf_chspec_get8080_chspec()
2624  * Returns the center channel of the primary 80 MHz sub-band of the provided chanspec
2644  * Returns the center channel of the secondary 80 MHz sub-band of the provided chanspec
2743  * For 20/40/80MHz chanspec, set ch[0] to be the center freq, and chan[1]=-1
2764  * Returns the center channel of the primary 160MHz sub-band of the provided chanspec
2874 	/* center 40MHz EXT */  in wf_get_all_ext()