From 7eeb4e6f7f10c17c889abe4b905a909bb9f58af0 Mon Sep 17 00:00:00 2001 From: Jens Muecke Date: Sat, 15 Dec 2007 19:59:21 +0000 Subject: * adding network config for olpc * adding libertas * config issue * quiet mode for bootloader SVN-Revision: 9768 --- package/libertas/src/11d.c | 700 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 700 insertions(+) create mode 100644 package/libertas/src/11d.c (limited to 'package/libertas/src/11d.c') diff --git a/package/libertas/src/11d.c b/package/libertas/src/11d.c new file mode 100644 index 0000000..5e10ce0 --- /dev/null +++ b/package/libertas/src/11d.c @@ -0,0 +1,700 @@ +/** + * This file contains functions for 802.11D. + */ +#include +#include +#include + +#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; region[i] && i < COUNTRY_CODE_LEN; 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 band, 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, u8 band) +{ + 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 ieeetypes_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 band, 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, band, &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 ieeetypes_countryinfofullset* + 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->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->len - COUNTRY_CODE_LEN) / + sizeof(struct ieeetypes_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(band, 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, band, 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 mrvlietypes_domainparamset *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 ieeetypes_subbandset) + + sizeof(domain->countrycode)); + + if (nr_subband) { + memcpy(domain->subband, priv->domainreg.subband, + nr_subband * sizeof(struct ieeetypes_subbandset)); + + cmd->size = cpu_to_le16(sizeof(pdomaininfo->action) + + le16_to_cpu(domain->header.len) + + sizeof(struct mrvlietypesheader) + + 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 lbs_private *priv, + struct cmd_ds_command *resp) +{ + struct cmd_ds_802_11d_domain_info *domaininfo = &resp->params.domaininforesp; + struct mrvlietypes_domainparamset *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 ieeetypes_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; +} -- cgit v1.1