2 * Copyright (c) 2010 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #include <linux/kernel.h>
18 #include <linux/string.h>
19 #include <linux/netdevice.h>
20 #include <linux/module.h>
21 #include <brcmu_wifi.h>
22 #include <brcmu_utils.h>
27 #include "fwil_types.h"
28 #include "tracepoint.h"
32 MODULE_AUTHOR("Broadcom Corporation");
33 MODULE_DESCRIPTION("Broadcom 802.11 wireless LAN fullmac driver.");
34 MODULE_LICENSE("Dual BSD/GPL");
36 const u8 ALLFFMAC[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
38 #define BRCMF_DEFAULT_SCAN_CHANNEL_TIME 40
39 #define BRCMF_DEFAULT_SCAN_UNASSOC_TIME 40
41 /* default boost value for RSSI_DELTA in preferred join selection */
42 #define BRCMF_JOIN_PREF_RSSI_BOOST 8
44 #define BRCMF_DEFAULT_TXGLOM_SIZE 32 /* max tx frames in glom chain */
46 static int brcmf_sdiod_txglomsz = BRCMF_DEFAULT_TXGLOM_SIZE;
47 module_param_named(txglomsz, brcmf_sdiod_txglomsz, int, 0);
48 MODULE_PARM_DESC(txglomsz, "Maximum tx packet chain size [SDIO]");
50 /* Debug level configuration. See debug.h for bits, sysfs modifiable */
52 module_param_named(debug, brcmf_msg_level, int, S_IRUSR | S_IWUSR);
53 MODULE_PARM_DESC(debug, "Level of debug output");
55 static int brcmf_p2p_enable;
56 module_param_named(p2pon, brcmf_p2p_enable, int, 0);
57 MODULE_PARM_DESC(p2pon, "Enable legacy p2p management functionality");
59 static int brcmf_feature_disable;
60 module_param_named(feature_disable, brcmf_feature_disable, int, 0);
61 MODULE_PARM_DESC(feature_disable, "Disable features");
63 static char brcmf_firmware_path[BRCMF_FW_ALTPATH_LEN];
64 module_param_string(alternative_fw_path, brcmf_firmware_path,
65 BRCMF_FW_ALTPATH_LEN, S_IRUSR);
66 MODULE_PARM_DESC(alternative_fw_path, "Alternative firmware path");
68 static int brcmf_fcmode;
69 module_param_named(fcmode, brcmf_fcmode, int, 0);
70 MODULE_PARM_DESC(fcmode, "Mode of firmware signalled flow control");
72 static int brcmf_roamoff;
73 module_param_named(roamoff, brcmf_roamoff, int, S_IRUSR);
74 MODULE_PARM_DESC(roamoff, "Do not use internal roaming engine");
77 /* always succeed brcmf_bus_started() */
78 static int brcmf_ignore_probe_fail;
79 module_param_named(ignore_probe_fail, brcmf_ignore_probe_fail, int, 0);
80 MODULE_PARM_DESC(ignore_probe_fail, "always succeed probe for debugging");
83 static struct brcmfmac_platform_data *brcmfmac_pdata;
84 struct brcmf_mp_global_t brcmf_mp_global;
86 void brcmf_c_set_joinpref_default(struct brcmf_if *ifp)
88 struct brcmf_join_pref_params join_pref_params[2];
91 /* Setup join_pref to select target by RSSI (boost on 5GHz) */
92 join_pref_params[0].type = BRCMF_JOIN_PREF_RSSI_DELTA;
93 join_pref_params[0].len = 2;
94 join_pref_params[0].rssi_gain = BRCMF_JOIN_PREF_RSSI_BOOST;
95 join_pref_params[0].band = WLC_BAND_5G;
97 join_pref_params[1].type = BRCMF_JOIN_PREF_RSSI;
98 join_pref_params[1].len = 2;
99 join_pref_params[1].rssi_gain = 0;
100 join_pref_params[1].band = 0;
101 err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params,
102 sizeof(join_pref_params));
104 brcmf_err("Set join_pref error (%d)\n", err);
107 int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
109 s8 eventmask[BRCMF_EVENTING_MASK_LEN];
110 u8 buf[BRCMF_DCMD_SMLEN];
111 struct brcmf_rev_info_le revinfo;
112 struct brcmf_rev_info *ri;
116 /* retreive mac address */
117 err = brcmf_fil_iovar_data_get(ifp, "cur_etheraddr", ifp->mac_addr,
118 sizeof(ifp->mac_addr));
120 brcmf_err("Retreiving cur_etheraddr failed, %d\n", err);
123 memcpy(ifp->drvr->mac, ifp->mac_addr, sizeof(ifp->drvr->mac));
125 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_REVINFO,
126 &revinfo, sizeof(revinfo));
127 ri = &ifp->drvr->revinfo;
129 brcmf_err("retrieving revision info failed, %d\n", err);
131 ri->vendorid = le32_to_cpu(revinfo.vendorid);
132 ri->deviceid = le32_to_cpu(revinfo.deviceid);
133 ri->radiorev = le32_to_cpu(revinfo.radiorev);
134 ri->chiprev = le32_to_cpu(revinfo.chiprev);
135 ri->corerev = le32_to_cpu(revinfo.corerev);
136 ri->boardid = le32_to_cpu(revinfo.boardid);
137 ri->boardvendor = le32_to_cpu(revinfo.boardvendor);
138 ri->boardrev = le32_to_cpu(revinfo.boardrev);
139 ri->driverrev = le32_to_cpu(revinfo.driverrev);
140 ri->ucoderev = le32_to_cpu(revinfo.ucoderev);
141 ri->bus = le32_to_cpu(revinfo.bus);
142 ri->chipnum = le32_to_cpu(revinfo.chipnum);
143 ri->phytype = le32_to_cpu(revinfo.phytype);
144 ri->phyrev = le32_to_cpu(revinfo.phyrev);
145 ri->anarev = le32_to_cpu(revinfo.anarev);
146 ri->chippkg = le32_to_cpu(revinfo.chippkg);
147 ri->nvramrev = le32_to_cpu(revinfo.nvramrev);
151 /* query for 'ver' to get version info from firmware */
152 memset(buf, 0, sizeof(buf));
154 err = brcmf_fil_iovar_data_get(ifp, "ver", buf, sizeof(buf));
156 brcmf_err("Retreiving version information failed, %d\n",
163 /* Print fw version info */
164 brcmf_info("Firmware version = %s\n", buf);
166 /* locate firmware version number for ethtool */
167 ptr = strrchr(buf, ' ') + 1;
168 strlcpy(ifp->drvr->fwver, ptr, sizeof(ifp->drvr->fwver));
171 err = brcmf_fil_iovar_int_set(ifp, "mpc", 1);
173 brcmf_err("failed setting mpc\n");
177 brcmf_c_set_joinpref_default(ifp);
179 /* Setup event_msgs, enable E_IF */
180 err = brcmf_fil_iovar_data_get(ifp, "event_msgs", eventmask,
181 BRCMF_EVENTING_MASK_LEN);
183 brcmf_err("Get event_msgs error (%d)\n", err);
186 setbit(eventmask, BRCMF_E_IF);
187 err = brcmf_fil_iovar_data_set(ifp, "event_msgs", eventmask,
188 BRCMF_EVENTING_MASK_LEN);
190 brcmf_err("Set event_msgs error (%d)\n", err);
194 /* Setup default scan channel time */
195 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
196 BRCMF_DEFAULT_SCAN_CHANNEL_TIME);
198 brcmf_err("BRCMF_C_SET_SCAN_CHANNEL_TIME error (%d)\n",
203 /* Setup default scan unassoc time */
204 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
205 BRCMF_DEFAULT_SCAN_UNASSOC_TIME);
207 brcmf_err("BRCMF_C_SET_SCAN_UNASSOC_TIME error (%d)\n",
212 /* Enable tx beamforming, errors can be ignored (not supported) */
213 (void)brcmf_fil_iovar_int_set(ifp, "txbf", 1);
215 /* do bus specific preinit here */
216 err = brcmf_bus_preinit(ifp->drvr->bus_if);
221 #ifndef CONFIG_BRCM_TRACING
222 void __brcmf_err(const char *func, const char *fmt, ...)
224 struct va_format vaf;
231 pr_err("%s: %pV", func, &vaf);
237 #if defined(CONFIG_BRCM_TRACING) || defined(CONFIG_BRCMDBG)
238 void __brcmf_dbg(u32 level, const char *func, const char *fmt, ...)
240 struct va_format vaf = {
247 if (brcmf_msg_level & level)
248 pr_debug("%s %pV", func, &vaf);
249 trace_brcmf_dbg(level, func, &vaf);
254 static void brcmf_mp_attach(void)
256 /* If module param firmware path is set then this will always be used,
257 * if not set then if available use the platform data version. To make
258 * sure it gets initialized at all, always copy the module param version
260 strlcpy(brcmf_mp_global.firmware_path, brcmf_firmware_path,
261 BRCMF_FW_ALTPATH_LEN);
262 if ((brcmfmac_pdata) && (brcmfmac_pdata->fw_alternative_path) &&
263 (brcmf_mp_global.firmware_path[0] == '\0')) {
264 strlcpy(brcmf_mp_global.firmware_path,
265 brcmfmac_pdata->fw_alternative_path,
266 BRCMF_FW_ALTPATH_LEN);
270 struct brcmf_mp_device *brcmf_get_module_param(struct device *dev,
271 enum brcmf_bus_type bus_type,
272 u32 chip, u32 chiprev)
274 struct brcmf_mp_device *settings;
275 struct brcmfmac_pd_device *device_pd;
279 brcmf_dbg(INFO, "Enter, bus=%d, chip=%d, rev=%d\n", bus_type, chip,
281 settings = kzalloc(sizeof(*settings), GFP_ATOMIC);
285 /* start by using the module paramaters */
286 settings->p2p_enable = !!brcmf_p2p_enable;
287 settings->feature_disable = brcmf_feature_disable;
288 settings->fcmode = brcmf_fcmode;
289 settings->roamoff = !!brcmf_roamoff;
291 settings->ignore_probe_fail = !!brcmf_ignore_probe_fail;
294 if (bus_type == BRCMF_BUSTYPE_SDIO)
295 settings->bus.sdio.txglomsz = brcmf_sdiod_txglomsz;
297 /* See if there is any device specific platform data configured */
299 if (brcmfmac_pdata) {
300 for (i = 0; i < brcmfmac_pdata->device_count; i++) {
301 device_pd = &brcmfmac_pdata->devices[i];
302 if ((device_pd->bus_type == bus_type) &&
303 (device_pd->id == chip) &&
304 ((device_pd->rev == chiprev) ||
305 (device_pd->rev == -1))) {
306 brcmf_dbg(INFO, "Platform data for device found\n");
307 settings->country_codes =
308 device_pd->country_codes;
309 if (device_pd->bus_type == BRCMF_BUSTYPE_SDIO)
310 memcpy(&settings->bus.sdio,
311 &device_pd->bus.sdio,
312 sizeof(settings->bus.sdio));
319 /* No platform data for this device, try OF (Open Firwmare) */
320 brcmf_of_probe(dev, bus_type, settings);
325 void brcmf_release_module_param(struct brcmf_mp_device *module_param)
330 static int __init brcmf_common_pd_probe(struct platform_device *pdev)
332 brcmf_dbg(INFO, "Enter\n");
334 brcmfmac_pdata = dev_get_platdata(&pdev->dev);
336 if (brcmfmac_pdata->power_on)
337 brcmfmac_pdata->power_on();
342 static int brcmf_common_pd_remove(struct platform_device *pdev)
344 brcmf_dbg(INFO, "Enter\n");
346 if (brcmfmac_pdata->power_off)
347 brcmfmac_pdata->power_off();
352 static struct platform_driver brcmf_pd = {
353 .remove = brcmf_common_pd_remove,
355 .name = BRCMFMAC_PDATA_NAME,
359 static int __init brcmfmac_module_init(void)
363 /* Initialize debug system first */
364 brcmf_debugfs_init();
366 /* Get the platform data (if available) for our devices */
367 err = platform_driver_probe(&brcmf_pd, brcmf_common_pd_probe);
369 brcmf_dbg(INFO, "No platform data available.\n");
371 /* Initialize global module paramaters */
374 /* Continue the initialization by registering the different busses */
375 err = brcmf_core_init();
377 brcmf_debugfs_exit();
379 platform_driver_unregister(&brcmf_pd);
385 static void __exit brcmfmac_module_exit(void)
389 platform_driver_unregister(&brcmf_pd);
390 brcmf_debugfs_exit();
393 module_init(brcmfmac_module_init);
394 module_exit(brcmfmac_module_exit);