diff options
Diffstat (limited to 'drivers/net/wireless/libertas/11d.c')
| -rw-r--r-- | drivers/net/wireless/libertas/11d.c | 696 |
1 files changed, 0 insertions, 696 deletions
diff --git a/drivers/net/wireless/libertas/11d.c b/drivers/net/wireless/libertas/11d.c deleted file mode 100644 index 5c6968101f0d..000000000000 --- a/drivers/net/wireless/libertas/11d.c +++ /dev/null @@ -1,696 +0,0 @@ -/** - * This file contains functions for 802.11D. - */ -#include <linux/ctype.h> -#include <linux/kernel.h> -#include <linux/wireless.h> - -#include "host.h" -#include "decl.h" -#include "11d.h" -#include "dev.h" -#include "wext.h" - -#define TX_PWR_DEFAULT 10 - -static struct region_code_mapping region_code_mapping[] = { - {"US ", 0x10}, /* US FCC */ - {"CA ", 0x10}, /* IC Canada */ - {"SG ", 0x10}, /* Singapore */ - {"EU ", 0x30}, /* ETSI */ - {"AU ", 0x30}, /* Australia */ - {"KR ", 0x30}, /* Republic Of Korea */ - {"ES ", 0x31}, /* Spain */ - {"FR ", 0x32}, /* France */ - {"JP ", 0x40}, /* Japan */ -}; - -/* Following 2 structure defines the supported channels */ -static struct chan_freq_power channel_freq_power_UN_BG[] = { - {1, 2412, TX_PWR_DEFAULT}, - {2, 2417, TX_PWR_DEFAULT}, - {3, 2422, TX_PWR_DEFAULT}, - {4, 2427, TX_PWR_DEFAULT}, - {5, 2432, TX_PWR_DEFAULT}, - {6, 2437, TX_PWR_DEFAULT}, - {7, 2442, TX_PWR_DEFAULT}, - {8, 2447, TX_PWR_DEFAULT}, - {9, 2452, TX_PWR_DEFAULT}, - {10, 2457, TX_PWR_DEFAULT}, - {11, 2462, TX_PWR_DEFAULT}, - {12, 2467, TX_PWR_DEFAULT}, - {13, 2472, TX_PWR_DEFAULT}, - {14, 2484, TX_PWR_DEFAULT} -}; - -static u8 lbs_region_2_code(u8 *region) -{ - u8 i; - - for (i = 0; i < COUNTRY_CODE_LEN && region[i]; i++) - region[i] = toupper(region[i]); - - for (i = 0; i < ARRAY_SIZE(region_code_mapping); i++) { - if (!memcmp(region, region_code_mapping[i].region, - COUNTRY_CODE_LEN)) - return (region_code_mapping[i].code); - } - - /* default is US */ - return (region_code_mapping[0].code); -} - -static u8 *lbs_code_2_region(u8 code) -{ - u8 i; - - for (i = 0; i < ARRAY_SIZE(region_code_mapping); i++) { - if (region_code_mapping[i].code == code) - return (region_code_mapping[i].region); - } - /* default is US */ - return (region_code_mapping[0].region); -} - -/** - * @brief This function finds the nrchan-th chan after the firstchan - * @param band band - * @param firstchan first channel number - * @param nrchan number of channels - * @return the nrchan-th chan number -*/ -static u8 lbs_get_chan_11d(u8 firstchan, u8 nrchan, u8 *chan) -/*find the nrchan-th chan after the firstchan*/ -{ - u8 i; - struct chan_freq_power *cfp; - u8 cfp_no; - - cfp = channel_freq_power_UN_BG; - cfp_no = ARRAY_SIZE(channel_freq_power_UN_BG); - - for (i = 0; i < cfp_no; i++) { - if ((cfp + i)->channel == firstchan) { - lbs_deb_11d("firstchan found\n"); - break; - } - } - - if (i < cfp_no) { - /*if beyond the boundary */ - if (i + nrchan < cfp_no) { - *chan = (cfp + i + nrchan)->channel; - return 1; - } - } - - return 0; -} - -/** - * @brief This function Checks if chan txpwr is learned from AP/IBSS - * @param chan chan number - * @param parsed_region_chan pointer to parsed_region_chan_11d - * @return TRUE; FALSE -*/ -static u8 lbs_channel_known_11d(u8 chan, - struct parsed_region_chan_11d * parsed_region_chan) -{ - struct chan_power_11d *chanpwr = parsed_region_chan->chanpwr; - u8 nr_chan = parsed_region_chan->nr_chan; - u8 i = 0; - - lbs_deb_hex(LBS_DEB_11D, "parsed_region_chan", (char *)chanpwr, - sizeof(struct chan_power_11d) * nr_chan); - - for (i = 0; i < nr_chan; i++) { - if (chan == chanpwr[i].chan) { - lbs_deb_11d("found chan %d\n", chan); - return 1; - } - } - - lbs_deb_11d("chan %d not found\n", chan); - return 0; -} - -u32 lbs_chan_2_freq(u8 chan) -{ - struct chan_freq_power *cf; - u16 i; - u32 freq = 0; - - cf = channel_freq_power_UN_BG; - - for (i = 0; i < ARRAY_SIZE(channel_freq_power_UN_BG); i++) { - if (chan == cf[i].channel) - freq = cf[i].freq; - } - - return freq; -} - -static int generate_domain_info_11d(struct parsed_region_chan_11d - *parsed_region_chan, - struct lbs_802_11d_domain_reg *domaininfo) -{ - u8 nr_subband = 0; - - u8 nr_chan = parsed_region_chan->nr_chan; - u8 nr_parsedchan = 0; - - u8 firstchan = 0, nextchan = 0, maxpwr = 0; - - u8 i, flag = 0; - - memcpy(domaininfo->countrycode, parsed_region_chan->countrycode, - COUNTRY_CODE_LEN); - - lbs_deb_11d("nrchan %d\n", nr_chan); - lbs_deb_hex(LBS_DEB_11D, "parsed_region_chan", (char *)parsed_region_chan, - sizeof(struct parsed_region_chan_11d)); - - for (i = 0; i < nr_chan; i++) { - if (!flag) { - flag = 1; - nextchan = firstchan = - parsed_region_chan->chanpwr[i].chan; - maxpwr = parsed_region_chan->chanpwr[i].pwr; - nr_parsedchan = 1; - continue; - } - - if (parsed_region_chan->chanpwr[i].chan == nextchan + 1 && - parsed_region_chan->chanpwr[i].pwr == maxpwr) { - nextchan++; - nr_parsedchan++; - } else { - domaininfo->subband[nr_subband].firstchan = firstchan; - domaininfo->subband[nr_subband].nrchan = - nr_parsedchan; - domaininfo->subband[nr_subband].maxtxpwr = maxpwr; - nr_subband++; - nextchan = firstchan = - parsed_region_chan->chanpwr[i].chan; - maxpwr = parsed_region_chan->chanpwr[i].pwr; - } - } - - if (flag) { - domaininfo->subband[nr_subband].firstchan = firstchan; - domaininfo->subband[nr_subband].nrchan = nr_parsedchan; - domaininfo->subband[nr_subband].maxtxpwr = maxpwr; - nr_subband++; - } - domaininfo->nr_subband = nr_subband; - - lbs_deb_11d("nr_subband=%x\n", domaininfo->nr_subband); - lbs_deb_hex(LBS_DEB_11D, "domaininfo", (char *)domaininfo, - COUNTRY_CODE_LEN + 1 + - sizeof(struct ieee_subbandset) * nr_subband); - return 0; -} - -/** - * @brief This function generates parsed_region_chan from Domain Info learned from AP/IBSS - * @param region_chan pointer to struct region_channel - * @param *parsed_region_chan pointer to parsed_region_chan_11d - * @return N/A -*/ -static void lbs_generate_parsed_region_chan_11d(struct region_channel *region_chan, - struct parsed_region_chan_11d * - parsed_region_chan) -{ - u8 i; - struct chan_freq_power *cfp; - - if (region_chan == NULL) { - lbs_deb_11d("region_chan is NULL\n"); - return; - } - - cfp = region_chan->CFP; - if (cfp == NULL) { - lbs_deb_11d("cfp is NULL \n"); - return; - } - - parsed_region_chan->band = region_chan->band; - parsed_region_chan->region = region_chan->region; - memcpy(parsed_region_chan->countrycode, - lbs_code_2_region(region_chan->region), COUNTRY_CODE_LEN); - - lbs_deb_11d("region 0x%x, band %d\n", parsed_region_chan->region, - parsed_region_chan->band); - - for (i = 0; i < region_chan->nrcfp; i++, cfp++) { - parsed_region_chan->chanpwr[i].chan = cfp->channel; - parsed_region_chan->chanpwr[i].pwr = cfp->maxtxpower; - lbs_deb_11d("chan %d, pwr %d\n", - parsed_region_chan->chanpwr[i].chan, - parsed_region_chan->chanpwr[i].pwr); - } - parsed_region_chan->nr_chan = region_chan->nrcfp; - - lbs_deb_11d("nrchan %d\n", parsed_region_chan->nr_chan); - - return; -} - -/** - * @brief generate parsed_region_chan from Domain Info learned from AP/IBSS - * @param region region ID - * @param band band - * @param chan chan - * @return TRUE;FALSE -*/ -static u8 lbs_region_chan_supported_11d(u8 region, u8 chan) -{ - struct chan_freq_power *cfp; - int cfp_no; - u8 idx; - int ret = 0; - - lbs_deb_enter(LBS_DEB_11D); - - cfp = lbs_get_region_cfp_table(region, &cfp_no); - if (cfp == NULL) - return 0; - - for (idx = 0; idx < cfp_no; idx++) { - if (chan == (cfp + idx)->channel) { - /* If Mrvl Chip Supported? */ - if ((cfp + idx)->unsupported) { - ret = 0; - } else { - ret = 1; - } - goto done; - } - } - - /*chan is not in the region table */ - -done: - lbs_deb_leave_args(LBS_DEB_11D, "ret %d", ret); - return ret; -} - -/** - * @brief This function checks if chan txpwr is learned from AP/IBSS - * @param chan chan number - * @param parsed_region_chan pointer to parsed_region_chan_11d - * @return 0 -*/ -static int parse_domain_info_11d(struct ieee_ie_country_info_full_set *countryinfo, - u8 band, - struct parsed_region_chan_11d *parsed_region_chan) -{ - u8 nr_subband, nrchan; - u8 lastchan, firstchan; - u8 region; - u8 curchan = 0; - - u8 idx = 0; /*chan index in parsed_region_chan */ - - u8 j, i; - - lbs_deb_enter(LBS_DEB_11D); - - /*validation Rules: - 1. valid region Code - 2. First Chan increment - 3. channel range no overlap - 4. channel is valid? - 5. channel is supported by region? - 6. Others - */ - - lbs_deb_hex(LBS_DEB_11D, "countryinfo", (u8 *) countryinfo, 30); - - if ((*(countryinfo->countrycode)) == 0 - || (countryinfo->header.len <= COUNTRY_CODE_LEN)) { - /* No region Info or Wrong region info: treat as No 11D info */ - goto done; - } - - /*Step1: check region_code */ - parsed_region_chan->region = region = - lbs_region_2_code(countryinfo->countrycode); - - lbs_deb_11d("regioncode=%x\n", (u8) parsed_region_chan->region); - lbs_deb_hex(LBS_DEB_11D, "countrycode", (char *)countryinfo->countrycode, - COUNTRY_CODE_LEN); - - parsed_region_chan->band = band; - - memcpy(parsed_region_chan->countrycode, countryinfo->countrycode, - COUNTRY_CODE_LEN); - - nr_subband = (countryinfo->header.len - COUNTRY_CODE_LEN) / - sizeof(struct ieee_subbandset); - - for (j = 0, lastchan = 0; j < nr_subband; j++) { - - if (countryinfo->subband[j].firstchan <= lastchan) { - /*Step2&3. Check First Chan Num increment and no overlap */ - lbs_deb_11d("chan %d>%d, overlap\n", - countryinfo->subband[j].firstchan, lastchan); - continue; - } - - firstchan = countryinfo->subband[j].firstchan; - nrchan = countryinfo->subband[j].nrchan; - - for (i = 0; idx < MAX_NO_OF_CHAN && i < nrchan; i++) { - /*step4: channel is supported? */ - - if (!lbs_get_chan_11d(firstchan, i, &curchan)) { - /* Chan is not found in UN table */ - lbs_deb_11d("chan is not supported: %d \n", i); - break; - } - - lastchan = curchan; - - if (lbs_region_chan_supported_11d(region, curchan)) { - /*step5: Check if curchan is supported by mrvl in region */ - parsed_region_chan->chanpwr[idx].chan = curchan; - parsed_region_chan->chanpwr[idx].pwr = - countryinfo->subband[j].maxtxpwr; - idx++; - } else { - /*not supported and ignore the chan */ - lbs_deb_11d( - "i %d, chan %d unsupported in region %x, band %d\n", - i, curchan, region, band); - } - } - - /*Step6: Add other checking if any */ - - } - - parsed_region_chan->nr_chan = idx; - - lbs_deb_11d("nrchan=%x\n", parsed_region_chan->nr_chan); - lbs_deb_hex(LBS_DEB_11D, "parsed_region_chan", (u8 *) parsed_region_chan, - 2 + COUNTRY_CODE_LEN + sizeof(struct parsed_region_chan_11d) * idx); - -done: - lbs_deb_enter(LBS_DEB_11D); - return 0; -} - -/** - * @brief This function calculates the scan type for channels - * @param chan chan number - * @param parsed_region_chan pointer to parsed_region_chan_11d - * @return PASSIVE if chan is unknown; ACTIVE if chan is known -*/ -u8 lbs_get_scan_type_11d(u8 chan, - struct parsed_region_chan_11d * parsed_region_chan) -{ - u8 scan_type = CMD_SCAN_TYPE_PASSIVE; - - lbs_deb_enter(LBS_DEB_11D); - - if (lbs_channel_known_11d(chan, parsed_region_chan)) { - lbs_deb_11d("found, do active scan\n"); - scan_type = CMD_SCAN_TYPE_ACTIVE; - } else { - lbs_deb_11d("not found, do passive scan\n"); - } - - lbs_deb_leave_args(LBS_DEB_11D, "ret scan_type %d", scan_type); - return scan_type; - -} - -void lbs_init_11d(struct lbs_private *priv) -{ - priv->enable11d = 0; - memset(&(priv->parsed_region_chan), 0, - sizeof(struct parsed_region_chan_11d)); - return; -} - -/** - * @brief This function sets DOMAIN INFO to FW - * @param priv pointer to struct lbs_private - * @return 0; -1 -*/ -static int set_domain_info_11d(struct lbs_private *priv) -{ - int ret; - - if (!priv->enable11d) { - lbs_deb_11d("dnld domain Info with 11d disabled\n"); - return 0; - } - - ret = lbs_prepare_and_send_command(priv, CMD_802_11D_DOMAIN_INFO, - CMD_ACT_SET, - CMD_OPTION_WAITFORRSP, 0, NULL); - if (ret) - lbs_deb_11d("fail to dnld domain info\n"); - - return ret; -} - -/** - * @brief This function setups scan channels - * @param priv pointer to struct lbs_private - * @param band band - * @return 0 -*/ -int lbs_set_universaltable(struct lbs_private *priv, u8 band) -{ - u16 size = sizeof(struct chan_freq_power); - u16 i = 0; - - memset(priv->universal_channel, 0, - sizeof(priv->universal_channel)); - - priv->universal_channel[i].nrcfp = - sizeof(channel_freq_power_UN_BG) / size; - lbs_deb_11d("BG-band nrcfp %d\n", - priv->universal_channel[i].nrcfp); - - priv->universal_channel[i].CFP = channel_freq_power_UN_BG; - priv->universal_channel[i].valid = 1; - priv->universal_channel[i].region = UNIVERSAL_REGION_CODE; - priv->universal_channel[i].band = band; - i++; - - return 0; -} - -/** - * @brief This function implements command CMD_802_11D_DOMAIN_INFO - * @param priv pointer to struct lbs_private - * @param cmd pointer to cmd buffer - * @param cmdno cmd ID - * @param cmdOption cmd action - * @return 0 -*/ -int lbs_cmd_802_11d_domain_info(struct lbs_private *priv, - struct cmd_ds_command *cmd, u16 cmdno, - u16 cmdoption) -{ - struct cmd_ds_802_11d_domain_info *pdomaininfo = - &cmd->params.domaininfo; - struct mrvl_ie_domain_param_set *domain = &pdomaininfo->domain; - u8 nr_subband = priv->domainreg.nr_subband; - - lbs_deb_enter(LBS_DEB_11D); - - lbs_deb_11d("nr_subband=%x\n", nr_subband); - - cmd->command = cpu_to_le16(cmdno); - pdomaininfo->action = cpu_to_le16(cmdoption); - if (cmdoption == CMD_ACT_GET) { - cmd->size = - cpu_to_le16(sizeof(pdomaininfo->action) + S_DS_GEN); - lbs_deb_hex(LBS_DEB_11D, "802_11D_DOMAIN_INFO", (u8 *) cmd, - le16_to_cpu(cmd->size)); - goto done; - } - - domain->header.type = cpu_to_le16(TLV_TYPE_DOMAIN); - memcpy(domain->countrycode, priv->domainreg.countrycode, - sizeof(domain->countrycode)); - - domain->header.len = - cpu_to_le16(nr_subband * sizeof(struct ieee_subbandset) + - sizeof(domain->countrycode)); - - if (nr_subband) { - memcpy(domain->subband, priv->domainreg.subband, - nr_subband * sizeof(struct ieee_subbandset)); - - cmd->size = cpu_to_le16(sizeof(pdomaininfo->action) + - le16_to_cpu(domain->header.len) + - sizeof(struct mrvl_ie_header) + - S_DS_GEN); - } else { - cmd->size = - cpu_to_le16(sizeof(pdomaininfo->action) + S_DS_GEN); - } - - lbs_deb_hex(LBS_DEB_11D, "802_11D_DOMAIN_INFO", (u8 *) cmd, le16_to_cpu(cmd->size)); - -done: - lbs_deb_enter(LBS_DEB_11D); - return 0; -} - -/** - * @brief This function parses countryinfo from AP and download country info to FW - * @param priv pointer to struct lbs_private - * @param resp pointer to command response buffer - * @return 0; -1 - */ -int lbs_ret_802_11d_domain_info(struct cmd_ds_command *resp) -{ - struct cmd_ds_802_11d_domain_info *domaininfo = &resp->params.domaininforesp; - struct mrvl_ie_domain_param_set *domain = &domaininfo->domain; - u16 action = le16_to_cpu(domaininfo->action); - s16 ret = 0; - u8 nr_subband = 0; - - lbs_deb_enter(LBS_DEB_11D); - - lbs_deb_hex(LBS_DEB_11D, "domain info resp", (u8 *) resp, - (int)le16_to_cpu(resp->size)); - - nr_subband = (le16_to_cpu(domain->header.len) - COUNTRY_CODE_LEN) / - sizeof(struct ieee_subbandset); - - lbs_deb_11d("domain info resp: nr_subband %d\n", nr_subband); - - if (nr_subband > MRVDRV_MAX_SUBBAND_802_11D) { - lbs_deb_11d("Invalid Numrer of Subband returned!!\n"); - return -1; - } - - switch (action) { - case CMD_ACT_SET: /*Proc Set action */ - break; - - case CMD_ACT_GET: - break; - default: - lbs_deb_11d("Invalid action:%d\n", domaininfo->action); - ret = -1; - break; - } - - lbs_deb_leave_args(LBS_DEB_11D, "ret %d", ret); - return ret; -} - -/** - * @brief This function parses countryinfo from AP and download country info to FW - * @param priv pointer to struct lbs_private - * @return 0; -1 - */ -int lbs_parse_dnld_countryinfo_11d(struct lbs_private *priv, - struct bss_descriptor * bss) -{ - int ret; - - lbs_deb_enter(LBS_DEB_11D); - if (priv->enable11d) { - memset(&priv->parsed_region_chan, 0, - sizeof(struct parsed_region_chan_11d)); - ret = parse_domain_info_11d(&bss->countryinfo, 0, - &priv->parsed_region_chan); - - if (ret == -1) { - lbs_deb_11d("error parsing domain_info from AP\n"); - goto done; - } - - memset(&priv->domainreg, 0, - sizeof(struct lbs_802_11d_domain_reg)); - generate_domain_info_11d(&priv->parsed_region_chan, - &priv->domainreg); - - ret = set_domain_info_11d(priv); - - if (ret) { - lbs_deb_11d("error setting domain info\n"); - goto done; - } - } - ret = 0; - -done: - lbs_deb_leave_args(LBS_DEB_11D, "ret %d", ret); - return ret; -} - -/** - * @brief This function generates 11D info from user specified regioncode and download to FW - * @param priv pointer to struct lbs_private - * @return 0; -1 - */ -int lbs_create_dnld_countryinfo_11d(struct lbs_private *priv) -{ - int ret; - struct region_channel *region_chan; - u8 j; - - lbs_deb_enter(LBS_DEB_11D); - lbs_deb_11d("curbssparams.band %d\n", priv->curbssparams.band); - - if (priv->enable11d) { - /* update parsed_region_chan_11; dnld domaininf to FW */ - - for (j = 0; j < ARRAY_SIZE(priv->region_channel); j++) { - region_chan = &priv->region_channel[j]; - - lbs_deb_11d("%d region_chan->band %d\n", j, - region_chan->band); - - if (!region_chan || !region_chan->valid - || !region_chan->CFP) - continue; - if (region_chan->band != priv->curbssparams.band) - continue; - break; - } - - if (j >= ARRAY_SIZE(priv->region_channel)) { - lbs_deb_11d("region_chan not found, band %d\n", - priv->curbssparams.band); - ret = -1; - goto done; - } - - memset(&priv->parsed_region_chan, 0, - sizeof(struct parsed_region_chan_11d)); - lbs_generate_parsed_region_chan_11d(region_chan, - &priv-> - parsed_region_chan); - - memset(&priv->domainreg, 0, - sizeof(struct lbs_802_11d_domain_reg)); - generate_domain_info_11d(&priv->parsed_region_chan, - &priv->domainreg); - - ret = set_domain_info_11d(priv); - - if (ret) { - lbs_deb_11d("error setting domain info\n"); - goto done; - } - - } - ret = 0; - -done: - lbs_deb_leave_args(LBS_DEB_11D, "ret %d", ret); - return ret; -} |