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qcacmn: Add an API wlan_reg_chan_opclass_to_freq

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Add an API wlan_reg_chan_opclass_to_freq, that takes IEEE Channel
number and opclass as input and gives the channel center frequency
as output.

Change-Id: I09733d9dc27beb8f16037aa8653acededf32b715
CRs-Fixed: 2555042
This commit is contained in:
Hariharan Basuthkar 2019-10-23 16:38:54 +05:30 • committed by nshrivas
commit 853a2cda71
4 changed files with 84 additions and 0 deletions
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44
umac/regulatory/core/src/reg_opclass.c
View file

@ -504,4 +504,48 @@ uint16_t reg_get_op_class_width(struct wlan_objmgr_pdev *pdev,
return 0;
}
uint16_t reg_chan_opclass_to_freq(uint8_t chan,
uint8_t op_class,
bool global_tbl_lookup)
{
const struct reg_dmn_op_class_map_t *op_class_tbl = NULL;
uint8_t i = 0;
if (global_tbl_lookup) {
op_class_tbl = global_op_class;
} else {
if (channel_map == channel_map_global) {
op_class_tbl = global_op_class;
} else if (channel_map == channel_map_us) {
op_class_tbl = us_op_class;
} else if (channel_map == channel_map_eu) {
op_class_tbl = euro_op_class;
} else if (channel_map == channel_map_china) {
op_class_tbl = us_op_class;
} else if (channel_map == channel_map_jp) {
op_class_tbl = japan_op_class;
} else {
reg_err_rl("Invalid channel map");
return 0;
}
}
while (op_class_tbl->op_class) {
if (op_class_tbl->op_class == op_class) {
for (i = 0; (i < REG_MAX_CHANNELS_PER_OPERATING_CLASS &&
op_class_tbl->channels[i]); i++) {
if (op_class_tbl->channels[i] == chan) {
chan = op_class_tbl->channels[i];
return (op_class_tbl->start_freq +
(chan * FREQ_TO_CHAN_SCALE));
}
}
reg_err_rl("Channel not found");
return 0;
}
op_class_tbl++;
}
reg_err_rl("Invalid opclass given as input");
return 0;
}
#endif

19
umac/regulatory/core/src/reg_opclass.h
View file

@ -129,6 +129,17 @@ uint16_t reg_get_op_class_width(struct wlan_objmgr_pdev *pdev,
uint8_t op_class,
bool global_tbl_lookup);
/**
* reg_chan_opclass_to_freq() - Convert channel number and opclass to frequency
* @chan: IEEE Channel Number.
* @op_class: Opclass.
* @global_tbl_lookup: Global table lookup.
*
* Return: Channel center frequency else return 0.
*/
uint16_t reg_chan_opclass_to_freq(uint8_t chan,
uint8_t op_class,
bool global_tbl_lookup);
#else
static inline uint16_t reg_dmn_get_chanwidth_from_opclass(
@ -192,5 +203,13 @@ uint16_t reg_get_op_class_width(struct wlan_objmgr_pdev *pdev,
return 0;
}
static inline uint16_t
reg_chan_opclass_to_freq(uint8_t chan,
uint8_t op_class,
bool global_tbl_lookup)
{
return 0;
}
#endif
#endif

11
umac/regulatory/dispatcher/inc/wlan_reg_services_api.h
View file

@ -1174,4 +1174,15 @@ bool wlan_reg_is_6ghz_op_class(struct wlan_objmgr_pdev *pdev,
*/
bool wlan_reg_is_6ghz_supported(struct wlan_objmgr_pdev *pdev);
/**
* reg_chan_opclass_to_freq() - Convert channel number and opclass to frequency
* @chan: IEEE Channel Number.
* @op_class: Opclass.
* @global_tbl_lookup: Global table lookup.
*
* Return: Channel center frequency else return 0.
*/
uint16_t wlan_reg_chan_opclass_to_freq(uint8_t chan,
uint8_t op_class,
bool global_tbl_lookup);
#endif

10
umac/regulatory/dispatcher/src/wlan_reg_services_api.c
View file

@ -1023,3 +1023,13 @@ bool wlan_reg_is_6ghz_supported(struct wlan_objmgr_pdev *pdev)
{
return reg_is_6ghz_supported(pdev);
}
uint16_t wlan_reg_chan_opclass_to_freq(uint8_t chan,
uint8_t op_class,
bool global_tbl_lookup)
{
if (!chan || !op_class)
return 0;
return reg_chan_opclass_to_freq(chan, op_class, global_tbl_lookup);
}