diff options
Diffstat (limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c')
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c | 395 |
1 files changed, 395 insertions, 0 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c new file mode 100644 index 0000000..fdabd15 --- /dev/null +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c @@ -0,0 +1,395 @@ +/* + * Copyright (c) 2010 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/netdevice.h> +#include <linux/module.h> +#include <brcmu_wifi.h> +#include <brcmu_utils.h> +#include "core.h" +#include "bus.h" +#include "debug.h" +#include "fwil.h" +#include "fwil_types.h" +#include "tracepoint.h" +#include "common.h" +#include "of.h" + +MODULE_AUTHOR("Broadcom Corporation"); +MODULE_DESCRIPTION("Broadcom 802.11 wireless LAN fullmac driver."); +MODULE_LICENSE("Dual BSD/GPL"); + +const u8 ALLFFMAC[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; + +#define BRCMF_DEFAULT_SCAN_CHANNEL_TIME 40 +#define BRCMF_DEFAULT_SCAN_UNASSOC_TIME 40 + +/* default boost value for RSSI_DELTA in preferred join selection */ +#define BRCMF_JOIN_PREF_RSSI_BOOST 8 + +#define BRCMF_DEFAULT_TXGLOM_SIZE 32 /* max tx frames in glom chain */ + +static int brcmf_sdiod_txglomsz = BRCMF_DEFAULT_TXGLOM_SIZE; +module_param_named(txglomsz, brcmf_sdiod_txglomsz, int, 0); +MODULE_PARM_DESC(txglomsz, "Maximum tx packet chain size [SDIO]"); + +/* Debug level configuration. See debug.h for bits, sysfs modifiable */ +int brcmf_msg_level; +module_param_named(debug, brcmf_msg_level, int, S_IRUSR | S_IWUSR); +MODULE_PARM_DESC(debug, "Level of debug output"); + +static int brcmf_p2p_enable; +module_param_named(p2pon, brcmf_p2p_enable, int, 0); +MODULE_PARM_DESC(p2pon, "Enable legacy p2p management functionality"); + +static int brcmf_feature_disable; +module_param_named(feature_disable, brcmf_feature_disable, int, 0); +MODULE_PARM_DESC(feature_disable, "Disable features"); + +static char brcmf_firmware_path[BRCMF_FW_ALTPATH_LEN]; +module_param_string(alternative_fw_path, brcmf_firmware_path, + BRCMF_FW_ALTPATH_LEN, S_IRUSR); +MODULE_PARM_DESC(alternative_fw_path, "Alternative firmware path"); + +static int brcmf_fcmode; +module_param_named(fcmode, brcmf_fcmode, int, 0); +MODULE_PARM_DESC(fcmode, "Mode of firmware signalled flow control"); + +static int brcmf_roamoff; +module_param_named(roamoff, brcmf_roamoff, int, S_IRUSR); +MODULE_PARM_DESC(roamoff, "Do not use internal roaming engine"); + +#ifdef DEBUG +/* always succeed brcmf_bus_started() */ +static int brcmf_ignore_probe_fail; +module_param_named(ignore_probe_fail, brcmf_ignore_probe_fail, int, 0); +MODULE_PARM_DESC(ignore_probe_fail, "always succeed probe for debugging"); +#endif + +static struct brcmfmac_platform_data *brcmfmac_pdata; +struct brcmf_mp_global_t brcmf_mp_global; + +void brcmf_c_set_joinpref_default(struct brcmf_if *ifp) +{ + struct brcmf_join_pref_params join_pref_params[2]; + int err; + + /* Setup join_pref to select target by RSSI (boost on 5GHz) */ + join_pref_params[0].type = BRCMF_JOIN_PREF_RSSI_DELTA; + join_pref_params[0].len = 2; + join_pref_params[0].rssi_gain = BRCMF_JOIN_PREF_RSSI_BOOST; + join_pref_params[0].band = WLC_BAND_5G; + + join_pref_params[1].type = BRCMF_JOIN_PREF_RSSI; + join_pref_params[1].len = 2; + join_pref_params[1].rssi_gain = 0; + join_pref_params[1].band = 0; + err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params, + sizeof(join_pref_params)); + if (err) + brcmf_err("Set join_pref error (%d)\n", err); +} + +int brcmf_c_preinit_dcmds(struct brcmf_if *ifp) +{ + s8 eventmask[BRCMF_EVENTING_MASK_LEN]; + u8 buf[BRCMF_DCMD_SMLEN]; + struct brcmf_rev_info_le revinfo; + struct brcmf_rev_info *ri; + char *ptr; + s32 err; + + /* retreive mac address */ + err = brcmf_fil_iovar_data_get(ifp, "cur_etheraddr", ifp->mac_addr, + sizeof(ifp->mac_addr)); + if (err < 0) { + brcmf_err("Retreiving cur_etheraddr failed, %d\n", err); + goto done; + } + memcpy(ifp->drvr->mac, ifp->mac_addr, sizeof(ifp->drvr->mac)); + + err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_REVINFO, + &revinfo, sizeof(revinfo)); + ri = &ifp->drvr->revinfo; + if (err < 0) { + brcmf_err("retrieving revision info failed, %d\n", err); + } else { + ri->vendorid = le32_to_cpu(revinfo.vendorid); + ri->deviceid = le32_to_cpu(revinfo.deviceid); + ri->radiorev = le32_to_cpu(revinfo.radiorev); + ri->chiprev = le32_to_cpu(revinfo.chiprev); + ri->corerev = le32_to_cpu(revinfo.corerev); + ri->boardid = le32_to_cpu(revinfo.boardid); + ri->boardvendor = le32_to_cpu(revinfo.boardvendor); + ri->boardrev = le32_to_cpu(revinfo.boardrev); + ri->driverrev = le32_to_cpu(revinfo.driverrev); + ri->ucoderev = le32_to_cpu(revinfo.ucoderev); + ri->bus = le32_to_cpu(revinfo.bus); + ri->chipnum = le32_to_cpu(revinfo.chipnum); + ri->phytype = le32_to_cpu(revinfo.phytype); + ri->phyrev = le32_to_cpu(revinfo.phyrev); + ri->anarev = le32_to_cpu(revinfo.anarev); + ri->chippkg = le32_to_cpu(revinfo.chippkg); + ri->nvramrev = le32_to_cpu(revinfo.nvramrev); + } + ri->result = err; + + /* query for 'ver' to get version info from firmware */ + memset(buf, 0, sizeof(buf)); + strcpy(buf, "ver"); + err = brcmf_fil_iovar_data_get(ifp, "ver", buf, sizeof(buf)); + if (err < 0) { + brcmf_err("Retreiving version information failed, %d\n", + err); + goto done; + } + ptr = (char *)buf; + strsep(&ptr, "\n"); + + /* Print fw version info */ + brcmf_err("Firmware version = %s\n", buf); + + /* locate firmware version number for ethtool */ + ptr = strrchr(buf, ' ') + 1; + strlcpy(ifp->drvr->fwver, ptr, sizeof(ifp->drvr->fwver)); + + /* set mpc */ + err = brcmf_fil_iovar_int_set(ifp, "mpc", 1); + if (err) { + brcmf_err("failed setting mpc\n"); + goto done; + } + + brcmf_c_set_joinpref_default(ifp); + + /* Setup event_msgs, enable E_IF */ + err = brcmf_fil_iovar_data_get(ifp, "event_msgs", eventmask, + BRCMF_EVENTING_MASK_LEN); + if (err) { + brcmf_err("Get event_msgs error (%d)\n", err); + goto done; + } + setbit(eventmask, BRCMF_E_IF); + err = brcmf_fil_iovar_data_set(ifp, "event_msgs", eventmask, + BRCMF_EVENTING_MASK_LEN); + if (err) { + brcmf_err("Set event_msgs error (%d)\n", err); + goto done; + } + + /* Setup default scan channel time */ + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME, + BRCMF_DEFAULT_SCAN_CHANNEL_TIME); + if (err) { + brcmf_err("BRCMF_C_SET_SCAN_CHANNEL_TIME error (%d)\n", + err); + goto done; + } + + /* Setup default scan unassoc time */ + err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME, + BRCMF_DEFAULT_SCAN_UNASSOC_TIME); + if (err) { + brcmf_err("BRCMF_C_SET_SCAN_UNASSOC_TIME error (%d)\n", + err); + goto done; + } + + /* Enable tx beamforming, errors can be ignored (not supported) */ + (void)brcmf_fil_iovar_int_set(ifp, "txbf", 1); + + /* do bus specific preinit here */ + err = brcmf_bus_preinit(ifp->drvr->bus_if); +done: + return err; +} + +#ifndef CPTCFG_BRCM_TRACING +void __brcmf_err(const char *func, const char *fmt, ...) +{ + struct va_format vaf; + va_list args; + + va_start(args, fmt); + + vaf.fmt = fmt; + vaf.va = &args; + pr_err("%s: %pV", func, &vaf); + + va_end(args); +} +#endif + +#if defined(CPTCFG_BRCM_TRACING) || defined(CPTCFG_BRCMDBG) +void __brcmf_dbg(u32 level, const char *func, const char *fmt, ...) +{ + struct va_format vaf = { + .fmt = fmt, + }; + va_list args; + + va_start(args, fmt); + vaf.va = &args; + if (brcmf_msg_level & level) + pr_debug("%s %pV", func, &vaf); + trace_brcmf_dbg(level, func, &vaf); + va_end(args); +} +#endif + +static void brcmf_mp_attach(void) +{ + /* If module param firmware path is set then this will always be used, + * if not set then if available use the platform data version. To make + * sure it gets initialized at all, always copy the module param version + */ + strlcpy(brcmf_mp_global.firmware_path, brcmf_firmware_path, + BRCMF_FW_ALTPATH_LEN); + if ((brcmfmac_pdata) && (brcmfmac_pdata->fw_alternative_path) && + (brcmf_mp_global.firmware_path[0] == '\0')) { + strlcpy(brcmf_mp_global.firmware_path, + brcmfmac_pdata->fw_alternative_path, + BRCMF_FW_ALTPATH_LEN); + } +} + +struct brcmf_mp_device *brcmf_get_module_param(struct device *dev, + enum brcmf_bus_type bus_type, + u32 chip, u32 chiprev) +{ + struct brcmf_mp_device *settings; + struct brcmfmac_pd_device *device_pd; + bool found; + int i; + + brcmf_dbg(INFO, "Enter, bus=%d, chip=%d, rev=%d\n", bus_type, chip, + chiprev); + settings = kzalloc(sizeof(*settings), GFP_ATOMIC); + if (!settings) + return NULL; + + /* start by using the module paramaters */ + settings->p2p_enable = !!brcmf_p2p_enable; + settings->feature_disable = brcmf_feature_disable; + settings->fcmode = brcmf_fcmode; + settings->roamoff = !!brcmf_roamoff; +#ifdef DEBUG + settings->ignore_probe_fail = !!brcmf_ignore_probe_fail; +#endif + + if (bus_type == BRCMF_BUSTYPE_SDIO) + settings->bus.sdio.txglomsz = brcmf_sdiod_txglomsz; + + /* See if there is any device specific platform data configured */ + found = false; + if (brcmfmac_pdata) { + for (i = 0; i < brcmfmac_pdata->device_count; i++) { + device_pd = &brcmfmac_pdata->devices[i]; + if ((device_pd->bus_type == bus_type) && + (device_pd->id == chip) && + ((device_pd->rev == chiprev) || + (device_pd->rev == -1))) { + brcmf_dbg(INFO, "Platform data for device found\n"); + settings->country_codes = + device_pd->country_codes; + if (device_pd->bus_type == BRCMF_BUSTYPE_SDIO) + memcpy(&settings->bus.sdio, + &device_pd->bus.sdio, + sizeof(settings->bus.sdio)); + found = true; + break; + } + } + } + if (!found) { + /* No platform data for this device, try OF (Open Firwmare) */ + brcmf_of_probe(dev, bus_type, settings); + } + return settings; +} + +void brcmf_release_module_param(struct brcmf_mp_device *module_param) +{ + kfree(module_param); +} + +static int __init brcmf_common_pd_probe(struct platform_device *pdev) +{ + brcmf_dbg(INFO, "Enter\n"); + + brcmfmac_pdata = dev_get_platdata(&pdev->dev); + + if (brcmfmac_pdata->power_on) + brcmfmac_pdata->power_on(); + + return 0; +} + +static int brcmf_common_pd_remove(struct platform_device *pdev) +{ + brcmf_dbg(INFO, "Enter\n"); + + if (brcmfmac_pdata->power_off) + brcmfmac_pdata->power_off(); + + return 0; +} + +static struct platform_driver brcmf_pd = { + .remove = brcmf_common_pd_remove, + .driver = { + .name = BRCMFMAC_PDATA_NAME, + } +}; + +static int __init brcmfmac_module_init(void) +{ + int err; + + /* Initialize debug system first */ + brcmf_debugfs_init(); + + /* Get the platform data (if available) for our devices */ + err = platform_driver_probe(&brcmf_pd, brcmf_common_pd_probe); + if (err == -ENODEV) + brcmf_dbg(INFO, "No platform data available.\n"); + + /* Initialize global module paramaters */ + brcmf_mp_attach(); + + /* Continue the initialization by registering the different busses */ + err = brcmf_core_init(); + if (err) { + brcmf_debugfs_exit(); + if (brcmfmac_pdata) + platform_driver_unregister(&brcmf_pd); + } + + return err; +} + +static void __exit brcmfmac_module_exit(void) +{ + brcmf_core_exit(); + if (brcmfmac_pdata) + platform_driver_unregister(&brcmf_pd); + brcmf_debugfs_exit(); +} + +module_init(brcmfmac_module_init); +module_exit(brcmfmac_module_exit); + |