2 * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
3 * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com>
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19 /*************************************\
20 * Attach/Detach Functions and helpers *
21 \*************************************/
23 #include <linux/pci.h>
30 * ath5k_hw_post - Power On Self Test helper function
32 * @ah: The &struct ath5k_hw
34 static int ath5k_hw_post(struct ath5k_hw
*ah
)
39 u16 regs
[2] = {AR5K_STA_ID0
, AR5K_PHY(8)};
41 u32 static_pattern
[4] = {
42 0x55555555, 0xaaaaaaaa,
43 0x66666666, 0x99999999
48 for (c
= 0; c
< 2; c
++) {
52 /* Save previous value */
53 init_val
= ath5k_hw_reg_read(ah
, cur_reg
);
55 for (i
= 0; i
< 256; i
++) {
56 var_pattern
= i
<< 16 | i
;
57 ath5k_hw_reg_write(ah
, var_pattern
, cur_reg
);
58 cur_val
= ath5k_hw_reg_read(ah
, cur_reg
);
60 if (cur_val
!= var_pattern
) {
61 ATH5K_ERR(ah
->ah_sc
, "POST Failed !!!\n");
65 /* Found on ndiswrapper dumps */
66 var_pattern
= 0x0039080f;
67 ath5k_hw_reg_write(ah
, var_pattern
, cur_reg
);
70 for (i
= 0; i
< 4; i
++) {
71 var_pattern
= static_pattern
[i
];
72 ath5k_hw_reg_write(ah
, var_pattern
, cur_reg
);
73 cur_val
= ath5k_hw_reg_read(ah
, cur_reg
);
75 if (cur_val
!= var_pattern
) {
76 ATH5K_ERR(ah
->ah_sc
, "POST Failed !!!\n");
80 /* Found on ndiswrapper dumps */
81 var_pattern
= 0x003b080f;
82 ath5k_hw_reg_write(ah
, var_pattern
, cur_reg
);
85 /* Restore previous value */
86 ath5k_hw_reg_write(ah
, init_val
, cur_reg
);
95 * ath5k_hw_attach - Check if hw is supported and init the needed structs
97 * @sc: The &struct ath5k_softc we got from the driver's attach function
98 * @mac_version: The mac version id (check out ath5k.h) based on pci id
100 * Check if the device is supported, perform a POST and initialize the needed
101 * structs. Returns -ENOMEM if we don't have memory for the needed structs,
102 * -ENODEV if the device is not supported or prints an error msg if something
105 struct ath5k_hw
*ath5k_hw_attach(struct ath5k_softc
*sc
, u8 mac_version
)
108 struct pci_dev
*pdev
= sc
->pdev
;
109 u8 mac
[ETH_ALEN
] = {};
113 /*If we passed the test malloc a ath5k_hw struct*/
114 ah
= kzalloc(sizeof(struct ath5k_hw
), GFP_KERNEL
);
117 ATH5K_ERR(sc
, "out of memory\n");
122 ah
->ah_iobase
= sc
->iobase
;
127 ah
->ah_op_mode
= NL80211_IFTYPE_STATION
;
128 ah
->ah_radar
.r_enabled
= AR5K_TUNE_RADAR_ALERT
;
129 ah
->ah_turbo
= false;
130 ah
->ah_txpower
.txp_tpc
= AR5K_TUNE_TPC_TXPOWER
;
132 ah
->ah_atim_window
= 0;
133 ah
->ah_aifs
= AR5K_TUNE_AIFS
;
134 ah
->ah_cw_min
= AR5K_TUNE_CWMIN
;
135 ah
->ah_limit_tx_retries
= AR5K_INIT_TX_RETRY
;
136 ah
->ah_software_retry
= false;
137 ah
->ah_ant_diversity
= AR5K_TUNE_ANT_DIVERSITY
;
140 * Set the mac version based on the pci id
142 ah
->ah_version
= mac_version
;
144 /*Fill the ath5k_hw struct with the needed functions*/
145 ret
= ath5k_hw_init_desc_functions(ah
);
149 /* Bring device out of sleep and reset it's units */
150 ret
= ath5k_hw_nic_wakeup(ah
, CHANNEL_B
, true);
154 /* Get MAC, PHY and RADIO revisions */
155 srev
= ath5k_hw_reg_read(ah
, AR5K_SREV
);
156 ah
->ah_mac_srev
= srev
;
157 ah
->ah_mac_version
= AR5K_REG_MS(srev
, AR5K_SREV_VER
);
158 ah
->ah_mac_revision
= AR5K_REG_MS(srev
, AR5K_SREV_REV
);
159 ah
->ah_phy_revision
= ath5k_hw_reg_read(ah
, AR5K_PHY_CHIP_ID
) &
161 ah
->ah_radio_5ghz_revision
= ath5k_hw_radio_revision(ah
,
163 ah
->ah_phy
= AR5K_PHY(0);
165 /* Try to identify radio chip based on it's srev */
166 switch (ah
->ah_radio_5ghz_revision
& 0xf0) {
167 case AR5K_SREV_RAD_5111
:
168 ah
->ah_radio
= AR5K_RF5111
;
169 ah
->ah_single_chip
= false;
170 ah
->ah_radio_2ghz_revision
= ath5k_hw_radio_revision(ah
,
172 ah
->ah_phy_spending
= AR5K_PHY_SPENDING_RF5111
;
174 case AR5K_SREV_RAD_5112
:
175 case AR5K_SREV_RAD_2112
:
176 ah
->ah_radio
= AR5K_RF5112
;
177 ah
->ah_single_chip
= false;
178 ah
->ah_radio_2ghz_revision
= ath5k_hw_radio_revision(ah
,
180 ah
->ah_phy_spending
= AR5K_PHY_SPENDING_RF5112
;
182 case AR5K_SREV_RAD_2413
:
183 ah
->ah_radio
= AR5K_RF2413
;
184 ah
->ah_single_chip
= true;
185 ah
->ah_phy_spending
= AR5K_PHY_SPENDING_RF2413
;
187 case AR5K_SREV_RAD_5413
:
188 ah
->ah_radio
= AR5K_RF5413
;
189 ah
->ah_single_chip
= true;
190 ah
->ah_phy_spending
= AR5K_PHY_SPENDING_RF5413
;
192 case AR5K_SREV_RAD_2316
:
193 ah
->ah_radio
= AR5K_RF2316
;
194 ah
->ah_single_chip
= true;
195 ah
->ah_phy_spending
= AR5K_PHY_SPENDING_RF2316
;
197 case AR5K_SREV_RAD_2317
:
198 ah
->ah_radio
= AR5K_RF2317
;
199 ah
->ah_single_chip
= true;
200 ah
->ah_phy_spending
= AR5K_PHY_SPENDING_RF2317
;
202 case AR5K_SREV_RAD_5424
:
203 if (ah
->ah_mac_version
== AR5K_SREV_AR2425
||
204 ah
->ah_mac_version
== AR5K_SREV_AR2417
){
205 ah
->ah_radio
= AR5K_RF2425
;
206 ah
->ah_single_chip
= true;
207 ah
->ah_phy_spending
= AR5K_PHY_SPENDING_RF2425
;
209 ah
->ah_radio
= AR5K_RF5413
;
210 ah
->ah_single_chip
= true;
211 ah
->ah_phy_spending
= AR5K_PHY_SPENDING_RF5413
;
215 /* Identify radio based on mac/phy srev */
216 if (ah
->ah_version
== AR5K_AR5210
) {
217 ah
->ah_radio
= AR5K_RF5110
;
218 ah
->ah_single_chip
= false;
219 } else if (ah
->ah_version
== AR5K_AR5211
) {
220 ah
->ah_radio
= AR5K_RF5111
;
221 ah
->ah_single_chip
= false;
222 ah
->ah_radio_2ghz_revision
= ath5k_hw_radio_revision(ah
,
224 } else if (ah
->ah_mac_version
== (AR5K_SREV_AR2425
>> 4) ||
225 ah
->ah_mac_version
== (AR5K_SREV_AR2417
>> 4) ||
226 ah
->ah_phy_revision
== AR5K_SREV_PHY_2425
) {
227 ah
->ah_radio
= AR5K_RF2425
;
228 ah
->ah_single_chip
= true;
229 ah
->ah_radio_5ghz_revision
= AR5K_SREV_RAD_2425
;
230 ah
->ah_phy_spending
= AR5K_PHY_SPENDING_RF2425
;
231 } else if (srev
== AR5K_SREV_AR5213A
&&
232 ah
->ah_phy_revision
== AR5K_SREV_PHY_2112B
) {
233 ah
->ah_radio
= AR5K_RF5112
;
234 ah
->ah_single_chip
= false;
235 ah
->ah_radio_5ghz_revision
= AR5K_SREV_RAD_2112B
;
236 } else if (ah
->ah_mac_version
== (AR5K_SREV_AR2415
>> 4)) {
237 ah
->ah_radio
= AR5K_RF2316
;
238 ah
->ah_single_chip
= true;
239 ah
->ah_radio_5ghz_revision
= AR5K_SREV_RAD_2316
;
240 ah
->ah_phy_spending
= AR5K_PHY_SPENDING_RF2316
;
241 } else if (ah
->ah_mac_version
== (AR5K_SREV_AR5414
>> 4) ||
242 ah
->ah_phy_revision
== AR5K_SREV_PHY_5413
) {
243 ah
->ah_radio
= AR5K_RF5413
;
244 ah
->ah_single_chip
= true;
245 ah
->ah_radio_5ghz_revision
= AR5K_SREV_RAD_5413
;
246 ah
->ah_phy_spending
= AR5K_PHY_SPENDING_RF5413
;
247 } else if (ah
->ah_mac_version
== (AR5K_SREV_AR2414
>> 4) ||
248 ah
->ah_phy_revision
== AR5K_SREV_PHY_2413
) {
249 ah
->ah_radio
= AR5K_RF2413
;
250 ah
->ah_single_chip
= true;
251 ah
->ah_radio_5ghz_revision
= AR5K_SREV_RAD_2413
;
252 ah
->ah_phy_spending
= AR5K_PHY_SPENDING_RF2413
;
254 ATH5K_ERR(sc
, "Couldn't identify radio revision.\n");
261 /* Return on unsuported chips (unsupported eeprom etc) */
262 if ((srev
>= AR5K_SREV_AR5416
) &&
263 (srev
< AR5K_SREV_AR2425
)) {
264 ATH5K_ERR(sc
, "Device not yet supported.\n");
270 * Write PCI-E power save settings
272 if ((ah
->ah_version
== AR5K_AR5212
) && (pdev
->is_pcie
)) {
273 ath5k_hw_reg_write(ah
, 0x9248fc00, AR5K_PCIE_SERDES
);
274 ath5k_hw_reg_write(ah
, 0x24924924, AR5K_PCIE_SERDES
);
275 /* Shut off RX when elecidle is asserted */
276 ath5k_hw_reg_write(ah
, 0x28000039, AR5K_PCIE_SERDES
);
277 ath5k_hw_reg_write(ah
, 0x53160824, AR5K_PCIE_SERDES
);
278 /* TODO: EEPROM work */
279 ath5k_hw_reg_write(ah
, 0xe5980579, AR5K_PCIE_SERDES
);
280 /* Shut off PLL and CLKREQ active in L1 */
281 ath5k_hw_reg_write(ah
, 0x001defff, AR5K_PCIE_SERDES
);
282 /* Preserce other settings */
283 ath5k_hw_reg_write(ah
, 0x1aaabe40, AR5K_PCIE_SERDES
);
284 ath5k_hw_reg_write(ah
, 0xbe105554, AR5K_PCIE_SERDES
);
285 ath5k_hw_reg_write(ah
, 0x000e3007, AR5K_PCIE_SERDES
);
286 /* Reset SERDES to load new settings */
287 ath5k_hw_reg_write(ah
, 0x00000000, AR5K_PCIE_SERDES_RESET
);
294 ret
= ath5k_hw_post(ah
);
298 /* Enable pci core retry fix on Hainan (5213A) and later chips */
299 if (srev
>= AR5K_SREV_AR5213A
)
300 ath5k_hw_reg_write(ah
, AR5K_PCICFG_RETRY_FIX
, AR5K_PCICFG
);
303 * Get card capabilities, calibration values etc
306 ret
= ath5k_eeprom_init(ah
);
308 ATH5K_ERR(sc
, "unable to init EEPROM\n");
312 /* Get misc capabilities */
313 ret
= ath5k_hw_set_capabilities(ah
);
315 ATH5K_ERR(sc
, "unable to get device capabilities: 0x%04x\n",
320 if (srev
>= AR5K_SREV_AR2414
) {
321 ah
->ah_combined_mic
= true;
322 AR5K_REG_ENABLE_BITS(ah
, AR5K_MISC_MODE
,
323 AR5K_MISC_MODE_COMBINED_MIC
);
326 /* MAC address is cleared until add_interface */
327 ath5k_hw_set_lladdr(ah
, mac
);
329 /* Set BSSID to bcast address: ff:ff:ff:ff:ff:ff for now */
330 memset(ah
->ah_bssid
, 0xff, ETH_ALEN
);
331 ath5k_hw_set_associd(ah
, ah
->ah_bssid
, 0);
332 ath5k_hw_set_opmode(ah
);
334 ath5k_hw_set_rfgain_opt(ah
);
344 * ath5k_hw_detach - Free the ath5k_hw struct
346 * @ah: The &struct ath5k_hw
348 void ath5k_hw_detach(struct ath5k_hw
*ah
)
350 ATH5K_TRACE(ah
->ah_sc
);
352 __set_bit(ATH_STAT_INVALID
, ah
->ah_sc
->status
);
354 if (ah
->ah_rf_banks
!= NULL
)
355 kfree(ah
->ah_rf_banks
);
357 /* assume interrupts are down */