1 /******************************************************************************
3 * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
18 * The full GNU General Public License is included in this distribution in the
19 * file called LICENSE.
21 * Contact Information:
22 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24 *****************************************************************************/
26 #include <linux/kernel.h>
27 #include <linux/module.h>
28 #include <linux/init.h>
29 #include <linux/pci.h>
30 #include <linux/dma-mapping.h>
31 #include <linux/delay.h>
32 #include <linux/skbuff.h>
33 #include <linux/netdevice.h>
34 #include <linux/wireless.h>
35 #include <net/mac80211.h>
36 #include <linux/etherdevice.h>
37 #include <asm/unaligned.h>
39 #include "iwl-eeprom.h"
44 #include "iwl-helpers.h"
45 #include "iwl-5000-hw.h"
47 /* Highest firmware API version supported */
48 #define IWL5000_UCODE_API_MAX 1
49 #define IWL5150_UCODE_API_MAX 1
51 /* Lowest firmware API version supported */
52 #define IWL5000_UCODE_API_MIN 1
53 #define IWL5150_UCODE_API_MIN 1
55 #define IWL5000_FW_PRE "iwlwifi-5000-"
56 #define _IWL5000_MODULE_FIRMWARE(api) IWL5000_FW_PRE #api ".ucode"
57 #define IWL5000_MODULE_FIRMWARE(api) _IWL5000_MODULE_FIRMWARE(api)
59 #define IWL5150_FW_PRE "iwlwifi-5150-"
60 #define _IWL5150_MODULE_FIRMWARE(api) IWL5150_FW_PRE #api ".ucode"
61 #define IWL5150_MODULE_FIRMWARE(api) _IWL5150_MODULE_FIRMWARE(api)
63 static const u16 iwl5000_default_queue_to_tx_fifo[] = {
73 /* FIXME: same implementation as 4965 */
74 static int iwl5000_apm_stop_master(struct iwl_priv *priv)
78 spin_lock_irqsave(&priv->lock, flags);
80 /* set stop master bit */
81 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
83 iwl_poll_direct_bit(priv, CSR_RESET,
84 CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
86 spin_unlock_irqrestore(&priv->lock, flags);
87 IWL_DEBUG_INFO("stop master\n");
93 static int iwl5000_apm_init(struct iwl_priv *priv)
97 iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
98 CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
100 /* disable L0s without affecting L1 :don't wait for ICH L0s bug W/A) */
101 iwl_set_bit(priv, CSR_GIO_CHICKEN_BITS,
102 CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
104 /* Set FH wait threshold to maximum (HW error during stress W/A) */
105 iwl_set_bit(priv, CSR_DBG_HPET_MEM_REG, CSR_DBG_HPET_MEM_REG_VAL);
107 /* enable HAP INTA to move device L1a -> L0s */
108 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
109 CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A);
111 iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL);
113 /* set "initialization complete" bit to move adapter
114 * D0U* --> D0A* state */
115 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
117 /* wait for clock stabilization */
118 ret = iwl_poll_direct_bit(priv, CSR_GP_CNTRL,
119 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
121 IWL_DEBUG_INFO("Failed to init the card\n");
125 ret = iwl_grab_nic_access(priv);
130 iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT);
134 /* disable L1-Active */
135 iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
136 APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
138 iwl_release_nic_access(priv);
143 /* FIXME: this is identical to 4965 */
144 static void iwl5000_apm_stop(struct iwl_priv *priv)
148 iwl5000_apm_stop_master(priv);
150 spin_lock_irqsave(&priv->lock, flags);
152 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
156 /* clear "init complete" move adapter D0A* --> D0U state */
157 iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
159 spin_unlock_irqrestore(&priv->lock, flags);
163 static int iwl5000_apm_reset(struct iwl_priv *priv)
168 iwl5000_apm_stop_master(priv);
170 spin_lock_irqsave(&priv->lock, flags);
172 iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
177 /* FIXME: put here L1A -L0S w/a */
179 iwl_set_bit(priv, CSR_ANA_PLL_CFG, CSR50_ANA_PLL_CFG_VAL);
181 /* set "initialization complete" bit to move adapter
182 * D0U* --> D0A* state */
183 iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
185 /* wait for clock stabilization */
186 ret = iwl_poll_direct_bit(priv, CSR_GP_CNTRL,
187 CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
189 IWL_DEBUG_INFO("Failed to init the card\n");
193 ret = iwl_grab_nic_access(priv);
198 iwl_write_prph(priv, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT);
202 /* disable L1-Active */
203 iwl_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
204 APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
206 iwl_release_nic_access(priv);
209 spin_unlock_irqrestore(&priv->lock, flags);
215 static void iwl5000_nic_config(struct iwl_priv *priv)
221 spin_lock_irqsave(&priv->lock, flags);
223 pci_read_config_word(priv->pci_dev, PCI_CFG_LINK_CTRL, &link);
225 /* L1 is enabled by BIOS */
226 if ((link & PCI_CFG_LINK_CTRL_VAL_L1_EN) == PCI_CFG_LINK_CTRL_VAL_L1_EN)
227 /* disable L0S disabled L1A enabled */
228 iwl_set_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
230 /* L0S enabled L1A disabled */
231 iwl_clear_bit(priv, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
233 radio_cfg = iwl_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
235 /* write radio config values to register */
236 if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) < EEPROM_5000_RF_CFG_TYPE_MAX)
237 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
238 EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
239 EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
240 EEPROM_RF_CFG_DASH_MSK(radio_cfg));
242 /* set CSR_HW_CONFIG_REG for uCode use */
243 iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
244 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
245 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
247 /* W/A : NIC is stuck in a reset state after Early PCIe power off
248 * (PCIe power is lost before PERST# is asserted),
249 * causing ME FW to lose ownership and not being able to obtain it back.
251 iwl_grab_nic_access(priv);
252 iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
253 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
254 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
255 iwl_release_nic_access(priv);
257 spin_unlock_irqrestore(&priv->lock, flags);
265 static u32 eeprom_indirect_address(const struct iwl_priv *priv, u32 address)
269 if ((address & INDIRECT_ADDRESS) == 0)
272 switch (address & INDIRECT_TYPE_MSK) {
274 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_HOST);
276 case INDIRECT_GENERAL:
277 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_GENERAL);
279 case INDIRECT_REGULATORY:
280 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_REGULATORY);
282 case INDIRECT_CALIBRATION:
283 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_CALIBRATION);
285 case INDIRECT_PROCESS_ADJST:
286 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_PROCESS_ADJST);
288 case INDIRECT_OTHERS:
289 offset = iwl_eeprom_query16(priv, EEPROM_5000_LINK_OTHERS);
292 IWL_ERR(priv, "illegal indirect type: 0x%X\n",
293 address & INDIRECT_TYPE_MSK);
297 /* translate the offset from words to byte */
298 return (address & ADDRESS_MSK) + (offset << 1);
301 static u16 iwl5000_eeprom_calib_version(struct iwl_priv *priv)
303 struct iwl_eeprom_calib_hdr {
309 hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(priv,
310 EEPROM_5000_CALIB_ALL);
315 static void iwl5000_gain_computation(struct iwl_priv *priv,
316 u32 average_noise[NUM_RX_CHAINS],
317 u16 min_average_noise_antenna_i,
318 u32 min_average_noise)
322 struct iwl_chain_noise_data *data = &priv->chain_noise_data;
324 /* Find Gain Code for the antennas B and C */
325 for (i = 1; i < NUM_RX_CHAINS; i++) {
326 if ((data->disconn_array[i])) {
327 data->delta_gain_code[i] = 0;
330 delta_g = (1000 * ((s32)average_noise[0] -
331 (s32)average_noise[i])) / 1500;
332 /* bound gain by 2 bits value max, 3rd bit is sign */
333 data->delta_gain_code[i] =
334 min(abs(delta_g), CHAIN_NOISE_MAX_DELTA_GAIN_CODE);
337 /* set negative sign */
338 data->delta_gain_code[i] |= (1 << 2);
341 IWL_DEBUG_CALIB("Delta gains: ANT_B = %d ANT_C = %d\n",
342 data->delta_gain_code[1], data->delta_gain_code[2]);
344 if (!data->radio_write) {
345 struct iwl_calib_chain_noise_gain_cmd cmd;
347 memset(&cmd, 0, sizeof(cmd));
349 cmd.hdr.op_code = IWL_PHY_CALIBRATE_CHAIN_NOISE_GAIN_CMD;
350 cmd.hdr.first_group = 0;
351 cmd.hdr.groups_num = 1;
352 cmd.hdr.data_valid = 1;
353 cmd.delta_gain_1 = data->delta_gain_code[1];
354 cmd.delta_gain_2 = data->delta_gain_code[2];
355 iwl_send_cmd_pdu_async(priv, REPLY_PHY_CALIBRATION_CMD,
356 sizeof(cmd), &cmd, NULL);
358 data->radio_write = 1;
359 data->state = IWL_CHAIN_NOISE_CALIBRATED;
362 data->chain_noise_a = 0;
363 data->chain_noise_b = 0;
364 data->chain_noise_c = 0;
365 data->chain_signal_a = 0;
366 data->chain_signal_b = 0;
367 data->chain_signal_c = 0;
368 data->beacon_count = 0;
371 static void iwl5000_chain_noise_reset(struct iwl_priv *priv)
373 struct iwl_chain_noise_data *data = &priv->chain_noise_data;
376 if ((data->state == IWL_CHAIN_NOISE_ALIVE) && iwl_is_associated(priv)) {
377 struct iwl_calib_chain_noise_reset_cmd cmd;
378 memset(&cmd, 0, sizeof(cmd));
380 cmd.hdr.op_code = IWL_PHY_CALIBRATE_CHAIN_NOISE_RESET_CMD;
381 cmd.hdr.first_group = 0;
382 cmd.hdr.groups_num = 1;
383 cmd.hdr.data_valid = 1;
384 ret = iwl_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
388 "Could not send REPLY_PHY_CALIBRATION_CMD\n");
389 data->state = IWL_CHAIN_NOISE_ACCUMULATE;
390 IWL_DEBUG_CALIB("Run chain_noise_calibrate\n");
394 static void iwl5000_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
397 if ((info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
398 (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT))
399 *tx_flags |= TX_CMD_FLG_RTS_CTS_MSK;
401 *tx_flags &= ~TX_CMD_FLG_RTS_CTS_MSK;
404 static struct iwl_sensitivity_ranges iwl5000_sensitivity = {
407 .auto_corr_min_ofdm = 90,
408 .auto_corr_min_ofdm_mrc = 170,
409 .auto_corr_min_ofdm_x1 = 120,
410 .auto_corr_min_ofdm_mrc_x1 = 240,
412 .auto_corr_max_ofdm = 120,
413 .auto_corr_max_ofdm_mrc = 210,
414 .auto_corr_max_ofdm_x1 = 155,
415 .auto_corr_max_ofdm_mrc_x1 = 290,
417 .auto_corr_min_cck = 125,
418 .auto_corr_max_cck = 200,
419 .auto_corr_min_cck_mrc = 170,
420 .auto_corr_max_cck_mrc = 400,
425 static const u8 *iwl5000_eeprom_query_addr(const struct iwl_priv *priv,
428 u32 address = eeprom_indirect_address(priv, offset);
429 BUG_ON(address >= priv->cfg->eeprom_size);
430 return &priv->eeprom[address];
433 static s32 iwl5150_get_ct_threshold(struct iwl_priv *priv)
435 const s32 volt2temp_coef = -5;
436 u16 *temp_calib = (u16 *)iwl_eeprom_query_addr(priv,
437 EEPROM_5000_TEMPERATURE);
438 /* offset = temperate - voltage / coef */
439 s32 offset = temp_calib[0] - temp_calib[1] / volt2temp_coef;
440 s32 threshold = (s32)CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD) - offset;
441 return threshold * volt2temp_coef;
447 static int iwl5000_set_Xtal_calib(struct iwl_priv *priv)
449 struct iwl_calib_xtal_freq_cmd cmd;
450 u16 *xtal_calib = (u16 *)iwl_eeprom_query_addr(priv, EEPROM_5000_XTAL);
452 cmd.hdr.op_code = IWL_PHY_CALIBRATE_CRYSTAL_FRQ_CMD;
453 cmd.hdr.first_group = 0;
454 cmd.hdr.groups_num = 1;
455 cmd.hdr.data_valid = 1;
456 cmd.cap_pin1 = (u8)xtal_calib[0];
457 cmd.cap_pin2 = (u8)xtal_calib[1];
458 return iwl_calib_set(&priv->calib_results[IWL_CALIB_XTAL],
459 (u8 *)&cmd, sizeof(cmd));
462 static int iwl5000_send_calib_cfg(struct iwl_priv *priv)
464 struct iwl_calib_cfg_cmd calib_cfg_cmd;
465 struct iwl_host_cmd cmd = {
466 .id = CALIBRATION_CFG_CMD,
467 .len = sizeof(struct iwl_calib_cfg_cmd),
468 .data = &calib_cfg_cmd,
471 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
472 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
473 calib_cfg_cmd.ucd_calib_cfg.once.start = IWL_CALIB_INIT_CFG_ALL;
474 calib_cfg_cmd.ucd_calib_cfg.once.send_res = IWL_CALIB_INIT_CFG_ALL;
475 calib_cfg_cmd.ucd_calib_cfg.flags = IWL_CALIB_INIT_CFG_ALL;
477 return iwl_send_cmd(priv, &cmd);
480 static void iwl5000_rx_calib_result(struct iwl_priv *priv,
481 struct iwl_rx_mem_buffer *rxb)
483 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
484 struct iwl_calib_hdr *hdr = (struct iwl_calib_hdr *)pkt->u.raw;
485 int len = le32_to_cpu(pkt->len) & FH_RSCSR_FRAME_SIZE_MSK;
488 /* reduce the size of the length field itself */
491 /* Define the order in which the results will be sent to the runtime
492 * uCode. iwl_send_calib_results sends them in a row according to their
493 * index. We sort them here */
494 switch (hdr->op_code) {
495 case IWL_PHY_CALIBRATE_DC_CMD:
496 index = IWL_CALIB_DC;
498 case IWL_PHY_CALIBRATE_LO_CMD:
499 index = IWL_CALIB_LO;
501 case IWL_PHY_CALIBRATE_TX_IQ_CMD:
502 index = IWL_CALIB_TX_IQ;
504 case IWL_PHY_CALIBRATE_TX_IQ_PERD_CMD:
505 index = IWL_CALIB_TX_IQ_PERD;
507 case IWL_PHY_CALIBRATE_BASE_BAND_CMD:
508 index = IWL_CALIB_BASE_BAND;
511 IWL_ERR(priv, "Unknown calibration notification %d\n",
515 iwl_calib_set(&priv->calib_results[index], pkt->u.raw, len);
518 static void iwl5000_rx_calib_complete(struct iwl_priv *priv,
519 struct iwl_rx_mem_buffer *rxb)
521 IWL_DEBUG_INFO("Init. calibration is completed, restarting fw.\n");
522 queue_work(priv->workqueue, &priv->restart);
528 static int iwl5000_load_section(struct iwl_priv *priv,
529 struct fw_desc *image,
535 dma_addr_t phy_addr = image->p_addr;
536 u32 byte_cnt = image->len;
538 spin_lock_irqsave(&priv->lock, flags);
539 ret = iwl_grab_nic_access(priv);
541 spin_unlock_irqrestore(&priv->lock, flags);
545 iwl_write_direct32(priv,
546 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
547 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE);
549 iwl_write_direct32(priv,
550 FH_SRVC_CHNL_SRAM_ADDR_REG(FH_SRVC_CHNL), dst_addr);
552 iwl_write_direct32(priv,
553 FH_TFDIB_CTRL0_REG(FH_SRVC_CHNL),
554 phy_addr & FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK);
556 iwl_write_direct32(priv,
557 FH_TFDIB_CTRL1_REG(FH_SRVC_CHNL),
558 (iwl_get_dma_hi_addr(phy_addr)
559 << FH_MEM_TFDIB_REG1_ADDR_BITSHIFT) | byte_cnt);
561 iwl_write_direct32(priv,
562 FH_TCSR_CHNL_TX_BUF_STS_REG(FH_SRVC_CHNL),
563 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM |
564 1 << FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX |
565 FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID);
567 iwl_write_direct32(priv,
568 FH_TCSR_CHNL_TX_CONFIG_REG(FH_SRVC_CHNL),
569 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
570 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE |
571 FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD);
573 iwl_release_nic_access(priv);
574 spin_unlock_irqrestore(&priv->lock, flags);
578 static int iwl5000_load_given_ucode(struct iwl_priv *priv,
579 struct fw_desc *inst_image,
580 struct fw_desc *data_image)
584 ret = iwl5000_load_section(priv, inst_image,
585 IWL50_RTC_INST_LOWER_BOUND);
589 IWL_DEBUG_INFO("INST uCode section being loaded...\n");
590 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
591 priv->ucode_write_complete, 5 * HZ);
592 if (ret == -ERESTARTSYS) {
593 IWL_ERR(priv, "Could not load the INST uCode section due "
598 IWL_ERR(priv, "Could not load the INST uCode section\n");
602 priv->ucode_write_complete = 0;
604 ret = iwl5000_load_section(
605 priv, data_image, IWL50_RTC_DATA_LOWER_BOUND);
609 IWL_DEBUG_INFO("DATA uCode section being loaded...\n");
611 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
612 priv->ucode_write_complete, 5 * HZ);
613 if (ret == -ERESTARTSYS) {
614 IWL_ERR(priv, "Could not load the INST uCode section due "
618 IWL_ERR(priv, "Could not load the DATA uCode section\n");
623 priv->ucode_write_complete = 0;
628 static int iwl5000_load_ucode(struct iwl_priv *priv)
632 /* check whether init ucode should be loaded, or rather runtime ucode */
633 if (priv->ucode_init.len && (priv->ucode_type == UCODE_NONE)) {
634 IWL_DEBUG_INFO("Init ucode found. Loading init ucode...\n");
635 ret = iwl5000_load_given_ucode(priv,
636 &priv->ucode_init, &priv->ucode_init_data);
638 IWL_DEBUG_INFO("Init ucode load complete.\n");
639 priv->ucode_type = UCODE_INIT;
642 IWL_DEBUG_INFO("Init ucode not found, or already loaded. "
643 "Loading runtime ucode...\n");
644 ret = iwl5000_load_given_ucode(priv,
645 &priv->ucode_code, &priv->ucode_data);
647 IWL_DEBUG_INFO("Runtime ucode load complete.\n");
648 priv->ucode_type = UCODE_RT;
655 static void iwl5000_init_alive_start(struct iwl_priv *priv)
659 /* Check alive response for "valid" sign from uCode */
660 if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
661 /* We had an error bringing up the hardware, so take it
662 * all the way back down so we can try again */
663 IWL_DEBUG_INFO("Initialize Alive failed.\n");
667 /* initialize uCode was loaded... verify inst image.
668 * This is a paranoid check, because we would not have gotten the
669 * "initialize" alive if code weren't properly loaded. */
670 if (iwl_verify_ucode(priv)) {
671 /* Runtime instruction load was bad;
672 * take it all the way back down so we can try again */
673 IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
677 iwl_clear_stations_table(priv);
678 ret = priv->cfg->ops->lib->alive_notify(priv);
681 "Could not complete ALIVE transition: %d\n", ret);
685 iwl5000_send_calib_cfg(priv);
689 /* real restart (first load init_ucode) */
690 queue_work(priv->workqueue, &priv->restart);
693 static void iwl5000_set_wr_ptrs(struct iwl_priv *priv,
694 int txq_id, u32 index)
696 iwl_write_direct32(priv, HBUS_TARG_WRPTR,
697 (index & 0xff) | (txq_id << 8));
698 iwl_write_prph(priv, IWL50_SCD_QUEUE_RDPTR(txq_id), index);
701 static void iwl5000_tx_queue_set_status(struct iwl_priv *priv,
702 struct iwl_tx_queue *txq,
703 int tx_fifo_id, int scd_retry)
705 int txq_id = txq->q.id;
706 int active = test_bit(txq_id, &priv->txq_ctx_active_msk) ? 1 : 0;
708 iwl_write_prph(priv, IWL50_SCD_QUEUE_STATUS_BITS(txq_id),
709 (active << IWL50_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
710 (tx_fifo_id << IWL50_SCD_QUEUE_STTS_REG_POS_TXF) |
711 (1 << IWL50_SCD_QUEUE_STTS_REG_POS_WSL) |
712 IWL50_SCD_QUEUE_STTS_REG_MSK);
714 txq->sched_retry = scd_retry;
716 IWL_DEBUG_INFO("%s %s Queue %d on AC %d\n",
717 active ? "Activate" : "Deactivate",
718 scd_retry ? "BA" : "AC", txq_id, tx_fifo_id);
721 static int iwl5000_send_wimax_coex(struct iwl_priv *priv)
723 struct iwl_wimax_coex_cmd coex_cmd;
725 memset(&coex_cmd, 0, sizeof(coex_cmd));
727 return iwl_send_cmd_pdu(priv, COEX_PRIORITY_TABLE_CMD,
728 sizeof(coex_cmd), &coex_cmd);
731 static int iwl5000_alive_notify(struct iwl_priv *priv)
739 spin_lock_irqsave(&priv->lock, flags);
741 ret = iwl_grab_nic_access(priv);
743 spin_unlock_irqrestore(&priv->lock, flags);
747 priv->scd_base_addr = iwl_read_prph(priv, IWL50_SCD_SRAM_BASE_ADDR);
748 a = priv->scd_base_addr + IWL50_SCD_CONTEXT_DATA_OFFSET;
749 for (; a < priv->scd_base_addr + IWL50_SCD_TX_STTS_BITMAP_OFFSET;
751 iwl_write_targ_mem(priv, a, 0);
752 for (; a < priv->scd_base_addr + IWL50_SCD_TRANSLATE_TBL_OFFSET;
754 iwl_write_targ_mem(priv, a, 0);
755 for (; a < sizeof(u16) * priv->hw_params.max_txq_num; a += 4)
756 iwl_write_targ_mem(priv, a, 0);
758 iwl_write_prph(priv, IWL50_SCD_DRAM_BASE_ADDR,
759 priv->scd_bc_tbls.dma >> 10);
761 /* Enable DMA channel */
762 for (chan = 0; chan < FH50_TCSR_CHNL_NUM ; chan++)
763 iwl_write_direct32(priv, FH_TCSR_CHNL_TX_CONFIG_REG(chan),
764 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
765 FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE);
767 /* Update FH chicken bits */
768 reg_val = iwl_read_direct32(priv, FH_TX_CHICKEN_BITS_REG);
769 iwl_write_direct32(priv, FH_TX_CHICKEN_BITS_REG,
770 reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN);
772 iwl_write_prph(priv, IWL50_SCD_QUEUECHAIN_SEL,
773 IWL50_SCD_QUEUECHAIN_SEL_ALL(priv->hw_params.max_txq_num));
774 iwl_write_prph(priv, IWL50_SCD_AGGR_SEL, 0);
776 /* initiate the queues */
777 for (i = 0; i < priv->hw_params.max_txq_num; i++) {
778 iwl_write_prph(priv, IWL50_SCD_QUEUE_RDPTR(i), 0);
779 iwl_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
780 iwl_write_targ_mem(priv, priv->scd_base_addr +
781 IWL50_SCD_CONTEXT_QUEUE_OFFSET(i), 0);
782 iwl_write_targ_mem(priv, priv->scd_base_addr +
783 IWL50_SCD_CONTEXT_QUEUE_OFFSET(i) +
786 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
787 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
789 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
790 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
793 iwl_write_prph(priv, IWL50_SCD_INTERRUPT_MASK,
794 IWL_MASK(0, priv->hw_params.max_txq_num));
796 /* Activate all Tx DMA/FIFO channels */
797 priv->cfg->ops->lib->txq_set_sched(priv, IWL_MASK(0, 7));
799 iwl5000_set_wr_ptrs(priv, IWL_CMD_QUEUE_NUM, 0);
801 /* map qos queues to fifos one-to-one */
802 for (i = 0; i < ARRAY_SIZE(iwl5000_default_queue_to_tx_fifo); i++) {
803 int ac = iwl5000_default_queue_to_tx_fifo[i];
804 iwl_txq_ctx_activate(priv, i);
805 iwl5000_tx_queue_set_status(priv, &priv->txq[i], ac, 0);
807 /* TODO - need to initialize those FIFOs inside the loop above,
808 * not only mark them as active */
809 iwl_txq_ctx_activate(priv, 4);
810 iwl_txq_ctx_activate(priv, 7);
811 iwl_txq_ctx_activate(priv, 8);
812 iwl_txq_ctx_activate(priv, 9);
814 iwl_release_nic_access(priv);
815 spin_unlock_irqrestore(&priv->lock, flags);
818 iwl5000_send_wimax_coex(priv);
820 iwl5000_set_Xtal_calib(priv);
821 iwl_send_calib_results(priv);
826 static int iwl5000_hw_set_hw_params(struct iwl_priv *priv)
828 if ((priv->cfg->mod_params->num_of_queues > IWL50_NUM_QUEUES) ||
829 (priv->cfg->mod_params->num_of_queues < IWL_MIN_NUM_QUEUES)) {
831 "invalid queues_num, should be between %d and %d\n",
832 IWL_MIN_NUM_QUEUES, IWL50_NUM_QUEUES);
836 priv->hw_params.max_txq_num = priv->cfg->mod_params->num_of_queues;
837 priv->hw_params.dma_chnl_num = FH50_TCSR_CHNL_NUM;
838 priv->hw_params.scd_bc_tbls_size =
839 IWL50_NUM_QUEUES * sizeof(struct iwl5000_scd_bc_tbl);
840 priv->hw_params.max_stations = IWL5000_STATION_COUNT;
841 priv->hw_params.bcast_sta_id = IWL5000_BROADCAST_ID;
842 priv->hw_params.max_data_size = IWL50_RTC_DATA_SIZE;
843 priv->hw_params.max_inst_size = IWL50_RTC_INST_SIZE;
844 priv->hw_params.max_bsm_size = 0;
845 priv->hw_params.fat_channel = BIT(IEEE80211_BAND_2GHZ) |
846 BIT(IEEE80211_BAND_5GHZ);
847 priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
849 priv->hw_params.sens = &iwl5000_sensitivity;
851 switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
852 case CSR_HW_REV_TYPE_5100:
853 priv->hw_params.tx_chains_num = 1;
854 priv->hw_params.rx_chains_num = 2;
855 priv->hw_params.valid_tx_ant = ANT_B;
856 priv->hw_params.valid_rx_ant = ANT_AB;
858 case CSR_HW_REV_TYPE_5150:
859 priv->hw_params.tx_chains_num = 1;
860 priv->hw_params.rx_chains_num = 2;
861 priv->hw_params.valid_tx_ant = ANT_A;
862 priv->hw_params.valid_rx_ant = ANT_AB;
864 case CSR_HW_REV_TYPE_5300:
865 case CSR_HW_REV_TYPE_5350:
866 priv->hw_params.tx_chains_num = 3;
867 priv->hw_params.rx_chains_num = 3;
868 priv->hw_params.valid_tx_ant = ANT_ABC;
869 priv->hw_params.valid_rx_ant = ANT_ABC;
873 switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
874 case CSR_HW_REV_TYPE_5100:
875 case CSR_HW_REV_TYPE_5300:
876 case CSR_HW_REV_TYPE_5350:
877 /* 5X00 and 5350 wants in Celsius */
878 priv->hw_params.ct_kill_threshold = CT_KILL_THRESHOLD;
880 case CSR_HW_REV_TYPE_5150:
881 /* 5150 wants in Kelvin */
882 priv->hw_params.ct_kill_threshold =
883 iwl5150_get_ct_threshold(priv);
887 /* Set initial calibration set */
888 switch (priv->hw_rev & CSR_HW_REV_TYPE_MSK) {
889 case CSR_HW_REV_TYPE_5100:
890 case CSR_HW_REV_TYPE_5300:
891 case CSR_HW_REV_TYPE_5350:
892 priv->hw_params.calib_init_cfg =
893 BIT(IWL_CALIB_XTAL) |
895 BIT(IWL_CALIB_TX_IQ) |
896 BIT(IWL_CALIB_TX_IQ_PERD) |
897 BIT(IWL_CALIB_BASE_BAND);
899 case CSR_HW_REV_TYPE_5150:
900 priv->hw_params.calib_init_cfg =
903 BIT(IWL_CALIB_TX_IQ) |
904 BIT(IWL_CALIB_BASE_BAND);
914 * iwl5000_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array
916 static void iwl5000_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
917 struct iwl_tx_queue *txq,
920 struct iwl5000_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr;
921 int write_ptr = txq->q.write_ptr;
922 int txq_id = txq->q.id;
925 u16 len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
928 WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX);
930 if (txq_id != IWL_CMD_QUEUE_NUM) {
931 sta_id = txq->cmd[txq->q.write_ptr]->cmd.tx.sta_id;
932 sec_ctl = txq->cmd[txq->q.write_ptr]->cmd.tx.sec_ctl;
934 switch (sec_ctl & TX_CMD_SEC_MSK) {
938 case TX_CMD_SEC_TKIP:
942 len += WEP_IV_LEN + WEP_ICV_LEN;
947 bc_ent = cpu_to_le16((len & 0xFFF) | (sta_id << 12));
949 scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent;
951 if (txq->q.write_ptr < TFD_QUEUE_SIZE_BC_DUP)
953 tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent;
956 static void iwl5000_txq_inval_byte_cnt_tbl(struct iwl_priv *priv,
957 struct iwl_tx_queue *txq)
959 struct iwl5000_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr;
960 int txq_id = txq->q.id;
961 int read_ptr = txq->q.read_ptr;
965 WARN_ON(read_ptr >= TFD_QUEUE_SIZE_MAX);
967 if (txq_id != IWL_CMD_QUEUE_NUM)
968 sta_id = txq->cmd[read_ptr]->cmd.tx.sta_id;
970 bc_ent = cpu_to_le16(1 | (sta_id << 12));
971 scd_bc_tbl[txq_id].tfd_offset[read_ptr] = bc_ent;
973 if (txq->q.write_ptr < TFD_QUEUE_SIZE_BC_DUP)
975 tfd_offset[TFD_QUEUE_SIZE_MAX + read_ptr] = bc_ent;
978 static int iwl5000_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid,
985 scd_q2ratid = ra_tid & IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK;
987 tbl_dw_addr = priv->scd_base_addr +
988 IWL50_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id);
990 tbl_dw = iwl_read_targ_mem(priv, tbl_dw_addr);
993 tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF);
995 tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000);
997 iwl_write_targ_mem(priv, tbl_dw_addr, tbl_dw);
1001 static void iwl5000_tx_queue_stop_scheduler(struct iwl_priv *priv, u16 txq_id)
1003 /* Simply stop the queue, but don't change any configuration;
1004 * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */
1005 iwl_write_prph(priv,
1006 IWL50_SCD_QUEUE_STATUS_BITS(txq_id),
1007 (0 << IWL50_SCD_QUEUE_STTS_REG_POS_ACTIVE)|
1008 (1 << IWL50_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
1011 static int iwl5000_txq_agg_enable(struct iwl_priv *priv, int txq_id,
1012 int tx_fifo, int sta_id, int tid, u16 ssn_idx)
1014 unsigned long flags;
1018 if ((IWL50_FIRST_AMPDU_QUEUE > txq_id) ||
1019 (IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES <= txq_id)) {
1021 "queue number out of range: %d, must be %d to %d\n",
1022 txq_id, IWL50_FIRST_AMPDU_QUEUE,
1023 IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES - 1);
1027 ra_tid = BUILD_RAxTID(sta_id, tid);
1029 /* Modify device's station table to Tx this TID */
1030 iwl_sta_tx_modify_enable_tid(priv, sta_id, tid);
1032 spin_lock_irqsave(&priv->lock, flags);
1033 ret = iwl_grab_nic_access(priv);
1035 spin_unlock_irqrestore(&priv->lock, flags);
1039 /* Stop this Tx queue before configuring it */
1040 iwl5000_tx_queue_stop_scheduler(priv, txq_id);
1042 /* Map receiver-address / traffic-ID to this queue */
1043 iwl5000_tx_queue_set_q2ratid(priv, ra_tid, txq_id);
1045 /* Set this queue as a chain-building queue */
1046 iwl_set_bits_prph(priv, IWL50_SCD_QUEUECHAIN_SEL, (1<<txq_id));
1048 /* enable aggregations for the queue */
1049 iwl_set_bits_prph(priv, IWL50_SCD_AGGR_SEL, (1<<txq_id));
1051 /* Place first TFD at index corresponding to start sequence number.
1052 * Assumes that ssn_idx is valid (!= 0xFFF) */
1053 priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
1054 priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
1055 iwl5000_set_wr_ptrs(priv, txq_id, ssn_idx);
1057 /* Set up Tx window size and frame limit for this queue */
1058 iwl_write_targ_mem(priv, priv->scd_base_addr +
1059 IWL50_SCD_CONTEXT_QUEUE_OFFSET(txq_id) +
1062 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_POS) &
1063 IWL50_SCD_QUEUE_CTX_REG2_WIN_SIZE_MSK) |
1064 ((SCD_FRAME_LIMIT <<
1065 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
1066 IWL50_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK));
1068 iwl_set_bits_prph(priv, IWL50_SCD_INTERRUPT_MASK, (1 << txq_id));
1070 /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */
1071 iwl5000_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 1);
1073 iwl_release_nic_access(priv);
1074 spin_unlock_irqrestore(&priv->lock, flags);
1079 static int iwl5000_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
1080 u16 ssn_idx, u8 tx_fifo)
1084 if ((IWL50_FIRST_AMPDU_QUEUE > txq_id) ||
1085 (IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES <= txq_id)) {
1087 "queue number out of range: %d, must be %d to %d\n",
1088 txq_id, IWL50_FIRST_AMPDU_QUEUE,
1089 IWL50_FIRST_AMPDU_QUEUE + IWL50_NUM_AMPDU_QUEUES - 1);
1093 ret = iwl_grab_nic_access(priv);
1097 iwl5000_tx_queue_stop_scheduler(priv, txq_id);
1099 iwl_clear_bits_prph(priv, IWL50_SCD_AGGR_SEL, (1 << txq_id));
1101 priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
1102 priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
1103 /* supposes that ssn_idx is valid (!= 0xFFF) */
1104 iwl5000_set_wr_ptrs(priv, txq_id, ssn_idx);
1106 iwl_clear_bits_prph(priv, IWL50_SCD_INTERRUPT_MASK, (1 << txq_id));
1107 iwl_txq_ctx_deactivate(priv, txq_id);
1108 iwl5000_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0);
1110 iwl_release_nic_access(priv);
1115 static u16 iwl5000_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data)
1117 u16 size = (u16)sizeof(struct iwl_addsta_cmd);
1118 memcpy(data, cmd, size);
1124 * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask
1125 * must be called under priv->lock and mac access
1127 static void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask)
1129 iwl_write_prph(priv, IWL50_SCD_TXFACT, mask);
1133 static inline u32 iwl5000_get_scd_ssn(struct iwl5000_tx_resp *tx_resp)
1135 return le32_to_cpup((__le32 *)&tx_resp->status +
1136 tx_resp->frame_count) & MAX_SN;
1139 static int iwl5000_tx_status_reply_tx(struct iwl_priv *priv,
1140 struct iwl_ht_agg *agg,
1141 struct iwl5000_tx_resp *tx_resp,
1142 int txq_id, u16 start_idx)
1145 struct agg_tx_status *frame_status = &tx_resp->status;
1146 struct ieee80211_tx_info *info = NULL;
1147 struct ieee80211_hdr *hdr = NULL;
1148 u32 rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
1152 if (agg->wait_for_ba)
1153 IWL_DEBUG_TX_REPLY("got tx response w/o block-ack\n");
1155 agg->frame_count = tx_resp->frame_count;
1156 agg->start_idx = start_idx;
1157 agg->rate_n_flags = rate_n_flags;
1160 /* # frames attempted by Tx command */
1161 if (agg->frame_count == 1) {
1162 /* Only one frame was attempted; no block-ack will arrive */
1163 status = le16_to_cpu(frame_status[0].status);
1166 /* FIXME: code repetition */
1167 IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
1168 agg->frame_count, agg->start_idx, idx);
1170 info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb[0]);
1171 info->status.rates[0].count = tx_resp->failure_frame + 1;
1172 info->flags &= ~IEEE80211_TX_CTL_AMPDU;
1173 info->flags |= iwl_is_tx_success(status) ?
1174 IEEE80211_TX_STAT_ACK : 0;
1175 iwl_hwrate_to_tx_control(priv, rate_n_flags, info);
1177 /* FIXME: code repetition end */
1179 IWL_DEBUG_TX_REPLY("1 Frame 0x%x failure :%d\n",
1180 status & 0xff, tx_resp->failure_frame);
1181 IWL_DEBUG_TX_REPLY("Rate Info rate_n_flags=%x\n", rate_n_flags);
1183 agg->wait_for_ba = 0;
1185 /* Two or more frames were attempted; expect block-ack */
1187 int start = agg->start_idx;
1189 /* Construct bit-map of pending frames within Tx window */
1190 for (i = 0; i < agg->frame_count; i++) {
1192 status = le16_to_cpu(frame_status[i].status);
1193 seq = le16_to_cpu(frame_status[i].sequence);
1194 idx = SEQ_TO_INDEX(seq);
1195 txq_id = SEQ_TO_QUEUE(seq);
1197 if (status & (AGG_TX_STATE_FEW_BYTES_MSK |
1198 AGG_TX_STATE_ABORT_MSK))
1201 IWL_DEBUG_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
1202 agg->frame_count, txq_id, idx);
1204 hdr = iwl_tx_queue_get_hdr(priv, txq_id, idx);
1206 sc = le16_to_cpu(hdr->seq_ctrl);
1207 if (idx != (SEQ_TO_SN(sc) & 0xff)) {
1209 "BUG_ON idx doesn't match seq control"
1210 " idx=%d, seq_idx=%d, seq=%d\n",
1216 IWL_DEBUG_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n",
1217 i, idx, SEQ_TO_SN(sc));
1221 sh = (start - idx) + 0xff;
1222 bitmap = bitmap << sh;
1225 } else if (sh < -64)
1226 sh = 0xff - (start - idx);
1230 bitmap = bitmap << sh;
1233 bitmap |= 1ULL << sh;
1234 IWL_DEBUG_TX_REPLY("start=%d bitmap=0x%llx\n",
1235 start, (unsigned long long)bitmap);
1238 agg->bitmap = bitmap;
1239 agg->start_idx = start;
1240 IWL_DEBUG_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
1241 agg->frame_count, agg->start_idx,
1242 (unsigned long long)agg->bitmap);
1245 agg->wait_for_ba = 1;
1250 static void iwl5000_rx_reply_tx(struct iwl_priv *priv,
1251 struct iwl_rx_mem_buffer *rxb)
1253 struct iwl_rx_packet *pkt = (struct iwl_rx_packet *)rxb->skb->data;
1254 u16 sequence = le16_to_cpu(pkt->hdr.sequence);
1255 int txq_id = SEQ_TO_QUEUE(sequence);
1256 int index = SEQ_TO_INDEX(sequence);
1257 struct iwl_tx_queue *txq = &priv->txq[txq_id];
1258 struct ieee80211_tx_info *info;
1259 struct iwl5000_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
1260 u32 status = le16_to_cpu(tx_resp->status.status);
1265 if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
1266 IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d "
1267 "is out of range [0-%d] %d %d\n", txq_id,
1268 index, txq->q.n_bd, txq->q.write_ptr,
1273 info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb[0]);
1274 memset(&info->status, 0, sizeof(info->status));
1276 tid = (tx_resp->ra_tid & IWL50_TX_RES_TID_MSK) >> IWL50_TX_RES_TID_POS;
1277 sta_id = (tx_resp->ra_tid & IWL50_TX_RES_RA_MSK) >> IWL50_TX_RES_RA_POS;
1279 if (txq->sched_retry) {
1280 const u32 scd_ssn = iwl5000_get_scd_ssn(tx_resp);
1281 struct iwl_ht_agg *agg = NULL;
1283 agg = &priv->stations[sta_id].tid[tid].agg;
1285 iwl5000_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index);
1287 /* check if BAR is needed */
1288 if ((tx_resp->frame_count == 1) && !iwl_is_tx_success(status))
1289 info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
1291 if (txq->q.read_ptr != (scd_ssn & 0xff)) {
1292 index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd);
1293 IWL_DEBUG_TX_REPLY("Retry scheduler reclaim "
1294 "scd_ssn=%d idx=%d txq=%d swq=%d\n",
1295 scd_ssn , index, txq_id, txq->swq_id);
1297 freed = iwl_tx_queue_reclaim(priv, txq_id, index);
1298 priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
1300 if (priv->mac80211_registered &&
1301 (iwl_queue_space(&txq->q) > txq->q.low_mark) &&
1302 (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)) {
1303 if (agg->state == IWL_AGG_OFF)
1304 ieee80211_wake_queue(priv->hw, txq_id);
1306 ieee80211_wake_queue(priv->hw,
1311 BUG_ON(txq_id != txq->swq_id);
1313 info->status.rates[0].count = tx_resp->failure_frame + 1;
1314 info->flags |= iwl_is_tx_success(status) ?
1315 IEEE80211_TX_STAT_ACK : 0;
1316 iwl_hwrate_to_tx_control(priv,
1317 le32_to_cpu(tx_resp->rate_n_flags),
1320 IWL_DEBUG_TX_REPLY("TXQ %d status %s (0x%08x) rate_n_flags "
1321 "0x%x retries %d\n",
1323 iwl_get_tx_fail_reason(status), status,
1324 le32_to_cpu(tx_resp->rate_n_flags),
1325 tx_resp->failure_frame);
1327 freed = iwl_tx_queue_reclaim(priv, txq_id, index);
1328 if (ieee80211_is_data_qos(tx_resp->frame_ctrl))
1329 priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
1331 if (priv->mac80211_registered &&
1332 (iwl_queue_space(&txq->q) > txq->q.low_mark))
1333 ieee80211_wake_queue(priv->hw, txq_id);
1336 if (ieee80211_is_data_qos(tx_resp->frame_ctrl))
1337 iwl_txq_check_empty(priv, sta_id, tid, txq_id);
1339 if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
1340 IWL_ERR(priv, "TODO: Implement Tx ABORT REQUIRED!!!\n");
1343 /* Currently 5000 is the superset of everything */
1344 static u16 iwl5000_get_hcmd_size(u8 cmd_id, u16 len)
1349 static void iwl5000_setup_deferred_work(struct iwl_priv *priv)
1351 /* in 5000 the tx power calibration is done in uCode */
1352 priv->disable_tx_power_cal = 1;
1355 static void iwl5000_rx_handler_setup(struct iwl_priv *priv)
1357 /* init calibration handlers */
1358 priv->rx_handlers[CALIBRATION_RES_NOTIFICATION] =
1359 iwl5000_rx_calib_result;
1360 priv->rx_handlers[CALIBRATION_COMPLETE_NOTIFICATION] =
1361 iwl5000_rx_calib_complete;
1362 priv->rx_handlers[REPLY_TX] = iwl5000_rx_reply_tx;
1366 static int iwl5000_hw_valid_rtc_data_addr(u32 addr)
1368 return (addr >= IWL50_RTC_DATA_LOWER_BOUND) &&
1369 (addr < IWL50_RTC_DATA_UPPER_BOUND);
1372 static int iwl5000_send_rxon_assoc(struct iwl_priv *priv)
1375 struct iwl5000_rxon_assoc_cmd rxon_assoc;
1376 const struct iwl_rxon_cmd *rxon1 = &priv->staging_rxon;
1377 const struct iwl_rxon_cmd *rxon2 = &priv->active_rxon;
1379 if ((rxon1->flags == rxon2->flags) &&
1380 (rxon1->filter_flags == rxon2->filter_flags) &&
1381 (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
1382 (rxon1->ofdm_ht_single_stream_basic_rates ==
1383 rxon2->ofdm_ht_single_stream_basic_rates) &&
1384 (rxon1->ofdm_ht_dual_stream_basic_rates ==
1385 rxon2->ofdm_ht_dual_stream_basic_rates) &&
1386 (rxon1->ofdm_ht_triple_stream_basic_rates ==
1387 rxon2->ofdm_ht_triple_stream_basic_rates) &&
1388 (rxon1->acquisition_data == rxon2->acquisition_data) &&
1389 (rxon1->rx_chain == rxon2->rx_chain) &&
1390 (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
1391 IWL_DEBUG_INFO("Using current RXON_ASSOC. Not resending.\n");
1395 rxon_assoc.flags = priv->staging_rxon.flags;
1396 rxon_assoc.filter_flags = priv->staging_rxon.filter_flags;
1397 rxon_assoc.ofdm_basic_rates = priv->staging_rxon.ofdm_basic_rates;
1398 rxon_assoc.cck_basic_rates = priv->staging_rxon.cck_basic_rates;
1399 rxon_assoc.reserved1 = 0;
1400 rxon_assoc.reserved2 = 0;
1401 rxon_assoc.reserved3 = 0;
1402 rxon_assoc.ofdm_ht_single_stream_basic_rates =
1403 priv->staging_rxon.ofdm_ht_single_stream_basic_rates;
1404 rxon_assoc.ofdm_ht_dual_stream_basic_rates =
1405 priv->staging_rxon.ofdm_ht_dual_stream_basic_rates;
1406 rxon_assoc.rx_chain_select_flags = priv->staging_rxon.rx_chain;
1407 rxon_assoc.ofdm_ht_triple_stream_basic_rates =
1408 priv->staging_rxon.ofdm_ht_triple_stream_basic_rates;
1409 rxon_assoc.acquisition_data = priv->staging_rxon.acquisition_data;
1411 ret = iwl_send_cmd_pdu_async(priv, REPLY_RXON_ASSOC,
1412 sizeof(rxon_assoc), &rxon_assoc, NULL);
1418 static int iwl5000_send_tx_power(struct iwl_priv *priv)
1420 struct iwl5000_tx_power_dbm_cmd tx_power_cmd;
1422 /* half dBm need to multiply */
1423 tx_power_cmd.global_lmt = (s8)(2 * priv->tx_power_user_lmt);
1424 tx_power_cmd.flags = IWL50_TX_POWER_NO_CLOSED;
1425 tx_power_cmd.srv_chan_lmt = IWL50_TX_POWER_AUTO;
1426 return iwl_send_cmd_pdu_async(priv, REPLY_TX_POWER_DBM_CMD,
1427 sizeof(tx_power_cmd), &tx_power_cmd,
1431 static void iwl5000_temperature(struct iwl_priv *priv)
1433 /* store temperature from statistics (in Celsius) */
1434 priv->temperature = le32_to_cpu(priv->statistics.general.temperature);
1437 /* Calc max signal level (dBm) among 3 possible receivers */
1438 static int iwl5000_calc_rssi(struct iwl_priv *priv,
1439 struct iwl_rx_phy_res *rx_resp)
1441 /* data from PHY/DSP regarding signal strength, etc.,
1442 * contents are always there, not configurable by host
1444 struct iwl5000_non_cfg_phy *ncphy =
1445 (struct iwl5000_non_cfg_phy *)rx_resp->non_cfg_phy_buf;
1446 u32 val, rssi_a, rssi_b, rssi_c, max_rssi;
1449 val = le32_to_cpu(ncphy->non_cfg_phy[IWL50_RX_RES_AGC_IDX]);
1450 agc = (val & IWL50_OFDM_AGC_MSK) >> IWL50_OFDM_AGC_BIT_POS;
1452 /* Find max rssi among 3 possible receivers.
1453 * These values are measured by the digital signal processor (DSP).
1454 * They should stay fairly constant even as the signal strength varies,
1455 * if the radio's automatic gain control (AGC) is working right.
1456 * AGC value (see below) will provide the "interesting" info.
1458 val = le32_to_cpu(ncphy->non_cfg_phy[IWL50_RX_RES_RSSI_AB_IDX]);
1459 rssi_a = (val & IWL50_OFDM_RSSI_A_MSK) >> IWL50_OFDM_RSSI_A_BIT_POS;
1460 rssi_b = (val & IWL50_OFDM_RSSI_B_MSK) >> IWL50_OFDM_RSSI_B_BIT_POS;
1461 val = le32_to_cpu(ncphy->non_cfg_phy[IWL50_RX_RES_RSSI_C_IDX]);
1462 rssi_c = (val & IWL50_OFDM_RSSI_C_MSK) >> IWL50_OFDM_RSSI_C_BIT_POS;
1464 max_rssi = max_t(u32, rssi_a, rssi_b);
1465 max_rssi = max_t(u32, max_rssi, rssi_c);
1467 IWL_DEBUG_STATS("Rssi In A %d B %d C %d Max %d AGC dB %d\n",
1468 rssi_a, rssi_b, rssi_c, max_rssi, agc);
1470 /* dBm = max_rssi dB - agc dB - constant.
1471 * Higher AGC (higher radio gain) means lower signal. */
1472 return max_rssi - agc - IWL49_RSSI_OFFSET;
1475 static struct iwl_hcmd_ops iwl5000_hcmd = {
1476 .rxon_assoc = iwl5000_send_rxon_assoc,
1479 static struct iwl_hcmd_utils_ops iwl5000_hcmd_utils = {
1480 .get_hcmd_size = iwl5000_get_hcmd_size,
1481 .build_addsta_hcmd = iwl5000_build_addsta_hcmd,
1482 .gain_computation = iwl5000_gain_computation,
1483 .chain_noise_reset = iwl5000_chain_noise_reset,
1484 .rts_tx_cmd_flag = iwl5000_rts_tx_cmd_flag,
1485 .calc_rssi = iwl5000_calc_rssi,
1488 static struct iwl_lib_ops iwl5000_lib = {
1489 .set_hw_params = iwl5000_hw_set_hw_params,
1490 .txq_update_byte_cnt_tbl = iwl5000_txq_update_byte_cnt_tbl,
1491 .txq_inval_byte_cnt_tbl = iwl5000_txq_inval_byte_cnt_tbl,
1492 .txq_set_sched = iwl5000_txq_set_sched,
1493 .txq_agg_enable = iwl5000_txq_agg_enable,
1494 .txq_agg_disable = iwl5000_txq_agg_disable,
1495 .rx_handler_setup = iwl5000_rx_handler_setup,
1496 .setup_deferred_work = iwl5000_setup_deferred_work,
1497 .is_valid_rtc_data_addr = iwl5000_hw_valid_rtc_data_addr,
1498 .load_ucode = iwl5000_load_ucode,
1499 .init_alive_start = iwl5000_init_alive_start,
1500 .alive_notify = iwl5000_alive_notify,
1501 .send_tx_power = iwl5000_send_tx_power,
1502 .temperature = iwl5000_temperature,
1503 .update_chain_flags = iwl_update_chain_flags,
1505 .init = iwl5000_apm_init,
1506 .reset = iwl5000_apm_reset,
1507 .stop = iwl5000_apm_stop,
1508 .config = iwl5000_nic_config,
1509 .set_pwr_src = iwl_set_pwr_src,
1512 .regulatory_bands = {
1513 EEPROM_5000_REG_BAND_1_CHANNELS,
1514 EEPROM_5000_REG_BAND_2_CHANNELS,
1515 EEPROM_5000_REG_BAND_3_CHANNELS,
1516 EEPROM_5000_REG_BAND_4_CHANNELS,
1517 EEPROM_5000_REG_BAND_5_CHANNELS,
1518 EEPROM_5000_REG_BAND_24_FAT_CHANNELS,
1519 EEPROM_5000_REG_BAND_52_FAT_CHANNELS
1521 .verify_signature = iwlcore_eeprom_verify_signature,
1522 .acquire_semaphore = iwlcore_eeprom_acquire_semaphore,
1523 .release_semaphore = iwlcore_eeprom_release_semaphore,
1524 .calib_version = iwl5000_eeprom_calib_version,
1525 .query_addr = iwl5000_eeprom_query_addr,
1529 static struct iwl_ops iwl5000_ops = {
1530 .lib = &iwl5000_lib,
1531 .hcmd = &iwl5000_hcmd,
1532 .utils = &iwl5000_hcmd_utils,
1535 static struct iwl_mod_params iwl50_mod_params = {
1536 .num_of_queues = IWL50_NUM_QUEUES,
1537 .num_of_ampdu_queues = IWL50_NUM_AMPDU_QUEUES,
1540 /* the rest are 0 by default */
1544 struct iwl_cfg iwl5300_agn_cfg = {
1546 .fw_name_pre = IWL5000_FW_PRE,
1547 .ucode_api_max = IWL5000_UCODE_API_MAX,
1548 .ucode_api_min = IWL5000_UCODE_API_MIN,
1549 .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
1550 .ops = &iwl5000_ops,
1551 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1552 .eeprom_ver = EEPROM_5000_EEPROM_VERSION,
1553 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
1554 .mod_params = &iwl50_mod_params,
1557 struct iwl_cfg iwl5100_bg_cfg = {
1559 .fw_name_pre = IWL5000_FW_PRE,
1560 .ucode_api_max = IWL5000_UCODE_API_MAX,
1561 .ucode_api_min = IWL5000_UCODE_API_MIN,
1563 .ops = &iwl5000_ops,
1564 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1565 .eeprom_ver = EEPROM_5000_EEPROM_VERSION,
1566 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
1567 .mod_params = &iwl50_mod_params,
1570 struct iwl_cfg iwl5100_abg_cfg = {
1572 .fw_name_pre = IWL5000_FW_PRE,
1573 .ucode_api_max = IWL5000_UCODE_API_MAX,
1574 .ucode_api_min = IWL5000_UCODE_API_MIN,
1575 .sku = IWL_SKU_A|IWL_SKU_G,
1576 .ops = &iwl5000_ops,
1577 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1578 .eeprom_ver = EEPROM_5000_EEPROM_VERSION,
1579 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
1580 .mod_params = &iwl50_mod_params,
1583 struct iwl_cfg iwl5100_agn_cfg = {
1585 .fw_name_pre = IWL5000_FW_PRE,
1586 .ucode_api_max = IWL5000_UCODE_API_MAX,
1587 .ucode_api_min = IWL5000_UCODE_API_MIN,
1588 .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
1589 .ops = &iwl5000_ops,
1590 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1591 .eeprom_ver = EEPROM_5000_EEPROM_VERSION,
1592 .eeprom_calib_ver = EEPROM_5000_TX_POWER_VERSION,
1593 .mod_params = &iwl50_mod_params,
1596 struct iwl_cfg iwl5350_agn_cfg = {
1598 .fw_name_pre = IWL5000_FW_PRE,
1599 .ucode_api_max = IWL5000_UCODE_API_MAX,
1600 .ucode_api_min = IWL5000_UCODE_API_MIN,
1601 .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
1602 .ops = &iwl5000_ops,
1603 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1604 .eeprom_ver = EEPROM_5050_EEPROM_VERSION,
1605 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION,
1606 .mod_params = &iwl50_mod_params,
1609 struct iwl_cfg iwl5150_agn_cfg = {
1611 .fw_name_pre = IWL5150_FW_PRE,
1612 .ucode_api_max = IWL5150_UCODE_API_MAX,
1613 .ucode_api_min = IWL5150_UCODE_API_MIN,
1614 .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
1615 .ops = &iwl5000_ops,
1616 .eeprom_size = IWL_5000_EEPROM_IMG_SIZE,
1617 .eeprom_ver = EEPROM_5050_EEPROM_VERSION,
1618 .eeprom_calib_ver = EEPROM_5050_TX_POWER_VERSION,
1619 .mod_params = &iwl50_mod_params,
1622 MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX));
1623 MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX));
1625 module_param_named(disable50, iwl50_mod_params.disable, int, 0444);
1626 MODULE_PARM_DESC(disable50,
1627 "manually disable the 50XX radio (default 0 [radio on])");
1628 module_param_named(swcrypto50, iwl50_mod_params.sw_crypto, bool, 0444);
1629 MODULE_PARM_DESC(swcrypto50,
1630 "using software crypto engine (default 0 [hardware])\n");
1631 module_param_named(debug50, iwl50_mod_params.debug, uint, 0444);
1632 MODULE_PARM_DESC(debug50, "50XX debug output mask");
1633 module_param_named(queues_num50, iwl50_mod_params.num_of_queues, int, 0444);
1634 MODULE_PARM_DESC(queues_num50, "number of hw queues in 50xx series");
1635 module_param_named(11n_disable50, iwl50_mod_params.disable_11n, int, 0444);
1636 MODULE_PARM_DESC(11n_disable50, "disable 50XX 11n functionality");
1637 module_param_named(amsdu_size_8K50, iwl50_mod_params.amsdu_size_8K, int, 0444);
1638 MODULE_PARM_DESC(amsdu_size_8K50, "enable 8K amsdu size in 50XX series");
1639 module_param_named(fw_restart50, iwl50_mod_params.restart_fw, int, 0444);
1640 MODULE_PARM_DESC(fw_restart50, "restart firmware in case of error");