[ath5k] Add support for non-802.11n Atheros wireless NICs

Signed-off-by: Michael Brown <mcb30@etherboot.org>

src/Makefile

@@ -62,6 +62,7 @@ SRCDIRS		+= drivers/net
 SRCDIRS		+= drivers/net/e1000
 SRCDIRS		+= drivers/net/phantom
 SRCDIRS		+= drivers/net/rtl818x
+SRCDIRS		+= drivers/net/ath5k
 SRCDIRS		+= drivers/block
 SRCDIRS		+= drivers/nvs
 SRCDIRS		+= drivers/bitbash

src/drivers/net/ath5k/ath5k_attach.c

@@ -0,0 +1,340 @@
+/*
+ * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
+ * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com>
+ *
+ * Modified for gPXE, July 2009, by Joshua Oreman <oremanj@rwcr.net>
+ * Original from Linux kernel 2.6.30.
+ *
+ * Permission to use, copy, modify, and 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.
+ *
+ */
+
+FILE_LICENCE ( MIT );
+
+/*************************************\
+* Attach/Detach Functions and helpers *
+\*************************************/
+
+#include <gpxe/pci.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include "ath5k.h"
+#include "reg.h"
+#include "base.h"
+
+/**
+ * ath5k_hw_post - Power On Self Test helper function
+ *
+ * @ah: The &struct ath5k_hw
+ */
+static int ath5k_hw_post(struct ath5k_hw *ah)
+{
+
+	static const u32 static_pattern[4] = {
+		0x55555555,	0xaaaaaaaa,
+		0x66666666,	0x99999999
+	};
+	static const u16 regs[2] = { AR5K_STA_ID0, AR5K_PHY(8) };
+	int i, c;
+	u16 cur_reg;
+	u32 var_pattern;
+	u32 init_val;
+	u32 cur_val;
+
+	for (c = 0; c < 2; c++) {
+
+		cur_reg = regs[c];
+
+		/* Save previous value */
+		init_val = ath5k_hw_reg_read(ah, cur_reg);
+
+		for (i = 0; i < 256; i++) {
+			var_pattern = i << 16 | i;
+			ath5k_hw_reg_write(ah, var_pattern, cur_reg);
+			cur_val = ath5k_hw_reg_read(ah, cur_reg);
+
+			if (cur_val != var_pattern) {
+				DBG("ath5k: POST failed!\n");
+				return -EAGAIN;
+			}
+
+			/* Found on ndiswrapper dumps */
+			var_pattern = 0x0039080f;
+			ath5k_hw_reg_write(ah, var_pattern, cur_reg);
+		}
+
+		for (i = 0; i < 4; i++) {
+			var_pattern = static_pattern[i];
+			ath5k_hw_reg_write(ah, var_pattern, cur_reg);
+			cur_val = ath5k_hw_reg_read(ah, cur_reg);
+
+			if (cur_val != var_pattern) {
+				DBG("ath5k: POST failed!\n");
+				return -EAGAIN;
+			}
+
+			/* Found on ndiswrapper dumps */
+			var_pattern = 0x003b080f;
+			ath5k_hw_reg_write(ah, var_pattern, cur_reg);
+		}
+
+		/* Restore previous value */
+		ath5k_hw_reg_write(ah, init_val, cur_reg);
+
+	}
+
+	return 0;
+
+}
+
+/**
+ * ath5k_hw_attach - Check if hw is supported and init the needed structs
+ *
+ * @sc: The &struct ath5k_softc we got from the driver's attach function
+ * @mac_version: The mac version id (check out ath5k.h) based on pci id
+ * @hw: Returned newly allocated hardware structure, on success
+ *
+ * Check if the device is supported, perform a POST and initialize the needed
+ * structs. Returns -ENOMEM if we don't have memory for the needed structs,
+ * -ENODEV if the device is not supported or prints an error msg if something
+ * else went wrong.
+ */
+int ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version,
+		    struct ath5k_hw **hw)
+{
+	struct ath5k_hw *ah;
+	struct pci_device *pdev = sc->pdev;
+	int ret;
+	u32 srev;
+
+	ah = zalloc(sizeof(struct ath5k_hw));
+	if (ah == NULL) {
+		ret = -ENOMEM;
+		DBG("ath5k: out of memory\n");
+		goto err;
+	}
+
+	ah->ah_sc = sc;
+	ah->ah_iobase = sc->iobase;
+
+	/*
+	 * HW information
+	 */
+	ah->ah_turbo = 0;
+	ah->ah_txpower.txp_tpc = 0;
+	ah->ah_imr = 0;
+	ah->ah_atim_window = 0;
+	ah->ah_aifs = AR5K_TUNE_AIFS;
+	ah->ah_cw_min = AR5K_TUNE_CWMIN;
+	ah->ah_limit_tx_retries = AR5K_INIT_TX_RETRY;
+	ah->ah_software_retry = 0;
+	ah->ah_ant_diversity = AR5K_TUNE_ANT_DIVERSITY;
+
+	/*
+	 * Set the mac version based on the pci id
+	 */
+	ah->ah_version = mac_version;
+
+	/*Fill the ath5k_hw struct with the needed functions*/
+	ret = ath5k_hw_init_desc_functions(ah);
+	if (ret)
+		goto err_free;
+
+	/* Bring device out of sleep and reset it's units */
+	ret = ath5k_hw_nic_wakeup(ah, CHANNEL_B, 1);
+	if (ret)
+		goto err_free;
+
+	/* Get MAC, PHY and RADIO revisions */
+	srev = ath5k_hw_reg_read(ah, AR5K_SREV);
+	ah->ah_mac_srev = srev;
+	ah->ah_mac_version = AR5K_REG_MS(srev, AR5K_SREV_VER);
+	ah->ah_mac_revision = AR5K_REG_MS(srev, AR5K_SREV_REV);
+	ah->ah_phy_revision = ath5k_hw_reg_read(ah, AR5K_PHY_CHIP_ID);
+	ah->ah_radio_5ghz_revision = ath5k_hw_radio_revision(ah, CHANNEL_5GHZ);
+	ah->ah_phy = AR5K_PHY(0);
+
+	/* Try to identify radio chip based on it's srev */
+	switch (ah->ah_radio_5ghz_revision & 0xf0) {
+	case AR5K_SREV_RAD_5111:
+		ah->ah_radio = AR5K_RF5111;
+		ah->ah_single_chip = 0;
+		ah->ah_radio_2ghz_revision = ath5k_hw_radio_revision(ah,
+							CHANNEL_2GHZ);
+		break;
+	case AR5K_SREV_RAD_5112:
+	case AR5K_SREV_RAD_2112:
+		ah->ah_radio = AR5K_RF5112;
+		ah->ah_single_chip = 0;
+		ah->ah_radio_2ghz_revision = ath5k_hw_radio_revision(ah,
+							CHANNEL_2GHZ);
+		break;
+	case AR5K_SREV_RAD_2413:
+		ah->ah_radio = AR5K_RF2413;
+		ah->ah_single_chip = 1;
+		break;
+	case AR5K_SREV_RAD_5413:
+		ah->ah_radio = AR5K_RF5413;
+		ah->ah_single_chip = 1;
+		break;
+	case AR5K_SREV_RAD_2316:
+		ah->ah_radio = AR5K_RF2316;
+		ah->ah_single_chip = 1;
+		break;
+	case AR5K_SREV_RAD_2317:
+		ah->ah_radio = AR5K_RF2317;
+		ah->ah_single_chip = 1;
+		break;
+	case AR5K_SREV_RAD_5424:
+		if (ah->ah_mac_version == AR5K_SREV_AR2425 ||
+		    ah->ah_mac_version == AR5K_SREV_AR2417) {
+			ah->ah_radio = AR5K_RF2425;
+		} else {
+			ah->ah_radio = AR5K_RF5413;
+		}
+		ah->ah_single_chip = 1;
+		break;
+	default:
+		/* Identify radio based on mac/phy srev */
+		if (ah->ah_version == AR5K_AR5210) {
+			ah->ah_radio = AR5K_RF5110;
+			ah->ah_single_chip = 0;
+		} else if (ah->ah_version == AR5K_AR5211) {
+			ah->ah_radio = AR5K_RF5111;
+			ah->ah_single_chip = 0;
+			ah->ah_radio_2ghz_revision = ath5k_hw_radio_revision(ah,
+								CHANNEL_2GHZ);
+		} else if (ah->ah_mac_version == (AR5K_SREV_AR2425 >> 4) ||
+			   ah->ah_mac_version == (AR5K_SREV_AR2417 >> 4) ||
+			   ah->ah_phy_revision == AR5K_SREV_PHY_2425) {
+			ah->ah_radio = AR5K_RF2425;
+			ah->ah_single_chip = 1;
+			ah->ah_radio_5ghz_revision = AR5K_SREV_RAD_2425;
+		} else if (srev == AR5K_SREV_AR5213A &&
+			   ah->ah_phy_revision == AR5K_SREV_PHY_5212B) {
+			ah->ah_radio = AR5K_RF5112;
+			ah->ah_single_chip = 0;
+			ah->ah_radio_5ghz_revision = AR5K_SREV_RAD_5112B;
+		} else if (ah->ah_mac_version == (AR5K_SREV_AR2415 >> 4)) {
+			ah->ah_radio = AR5K_RF2316;
+			ah->ah_single_chip = 1;
+			ah->ah_radio_5ghz_revision = AR5K_SREV_RAD_2316;
+		} else if (ah->ah_mac_version == (AR5K_SREV_AR5414 >> 4) ||
+			   ah->ah_phy_revision == AR5K_SREV_PHY_5413) {
+			ah->ah_radio = AR5K_RF5413;
+			ah->ah_single_chip = 1;
+			ah->ah_radio_5ghz_revision = AR5K_SREV_RAD_5413;
+		} else if (ah->ah_mac_version == (AR5K_SREV_AR2414 >> 4) ||
+			   ah->ah_phy_revision == AR5K_SREV_PHY_2413) {
+			ah->ah_radio = AR5K_RF2413;
+			ah->ah_single_chip = 1;
+			ah->ah_radio_5ghz_revision = AR5K_SREV_RAD_2413;
+		} else {
+			DBG("ath5k: Couldn't identify radio revision.\n");
+			ret = -ENOTSUP;
+			goto err_free;
+		}
+	}
+
+	/* Return on unsuported chips (unsupported eeprom etc) */
+	if ((srev >= AR5K_SREV_AR5416) &&
+	    (srev < AR5K_SREV_AR2425)) {
+		DBG("ath5k: Device not yet supported.\n");
+		ret = -ENOTSUP;
+		goto err_free;
+	}
+
+	/*
+	 * Write PCI-E power save settings
+	 */
+	if ((ah->ah_version == AR5K_AR5212) &&
+	    pci_find_capability(pdev, PCI_CAP_ID_EXP)) {
+		ath5k_hw_reg_write(ah, 0x9248fc00, AR5K_PCIE_SERDES);
+		ath5k_hw_reg_write(ah, 0x24924924, AR5K_PCIE_SERDES);
+		/* Shut off RX when elecidle is asserted */
+		ath5k_hw_reg_write(ah, 0x28000039, AR5K_PCIE_SERDES);
+		ath5k_hw_reg_write(ah, 0x53160824, AR5K_PCIE_SERDES);
+		/* TODO: EEPROM work */
+		ath5k_hw_reg_write(ah, 0xe5980579, AR5K_PCIE_SERDES);
+		/* Shut off PLL and CLKREQ active in L1 */
+		ath5k_hw_reg_write(ah, 0x001defff, AR5K_PCIE_SERDES);
+		/* Preserce other settings */
+		ath5k_hw_reg_write(ah, 0x1aaabe40, AR5K_PCIE_SERDES);
+		ath5k_hw_reg_write(ah, 0xbe105554, AR5K_PCIE_SERDES);
+		ath5k_hw_reg_write(ah, 0x000e3007, AR5K_PCIE_SERDES);
+		/* Reset SERDES to load new settings */
+		ath5k_hw_reg_write(ah, 0x00000000, AR5K_PCIE_SERDES_RESET);
+		mdelay(1);
+	}
+
+	/*
+	 * POST
+	 */
+	ret = ath5k_hw_post(ah);
+	if (ret)
+		goto err_free;
+
+	/* Enable pci core retry fix on Hainan (5213A) and later chips */
+	if (srev >= AR5K_SREV_AR5213A)
+		ath5k_hw_reg_write(ah, AR5K_PCICFG_RETRY_FIX, AR5K_PCICFG);
+
+	/*
+	 * Get card capabilities, calibration values etc
+	 * TODO: EEPROM work
+	 */
+	ret = ath5k_eeprom_init(ah);
+	if (ret) {
+		DBG("ath5k: unable to init EEPROM\n");
+		goto err_free;
+	}
+
+	/* Get misc capabilities */
+	ret = ath5k_hw_set_capabilities(ah);
+	if (ret) {
+		DBG("ath5k: unable to get device capabilities: 0x%04x\n",
+		    sc->pdev->device);
+		goto err_free;
+	}
+
+	if (srev >= AR5K_SREV_AR2414) {
+		ah->ah_combined_mic = 1;
+		AR5K_REG_ENABLE_BITS(ah, AR5K_MISC_MODE,
+				     AR5K_MISC_MODE_COMBINED_MIC);
+	}
+
+	/* Set BSSID to bcast address: ff:ff:ff:ff:ff:ff for now */
+	memset(ah->ah_bssid, 0xff, ETH_ALEN);
+	ath5k_hw_set_associd(ah, ah->ah_bssid, 0);
+	ath5k_hw_set_opmode(ah);
+
+	ath5k_hw_rfgain_opt_init(ah);
+
+	*hw = ah;
+	return 0;
+err_free:
+	free(ah);
+err:
+	return ret;
+}
+
+/**
+ * ath5k_hw_detach - Free the ath5k_hw struct
+ *
+ * @ah: The &struct ath5k_hw
+ */
+void ath5k_hw_detach(struct ath5k_hw *ah)
+{
+	free(ah->ah_rf_banks);
+	ath5k_eeprom_detach(ah);
+	free(ah);
+}

src/drivers/net/ath5k/ath5k_caps.c

@@ -0,0 +1,154 @@
+/*
+ * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
+ * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com>
+ * Copyright (c) 2007-2008 Jiri Slaby <jirislaby@gmail.com>
+ *
+ * Lightly modified for gPXE, July 2009, by Joshua Oreman <oremanj@rwcr.net>.
+ *
+ * Permission to use, copy, modify, and 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.
+ *
+ */
+
+FILE_LICENCE ( MIT );
+
+/**************\
+* Capabilities *
+\**************/
+
+#include "ath5k.h"
+#include "reg.h"
+#include "base.h"
+
+/*
+ * Fill the capabilities struct
+ * TODO: Merge this with EEPROM code when we are done with it
+ */
+int ath5k_hw_set_capabilities(struct ath5k_hw *ah)
+{
+	u16 ee_header;
+
+	/* Capabilities stored in the EEPROM */
+	ee_header = ah->ah_capabilities.cap_eeprom.ee_header;
+
+	if (ah->ah_version == AR5K_AR5210) {
+		/*
+		 * Set radio capabilities
+		 * (The AR5110 only supports the middle 5GHz band)
+		 */
+		ah->ah_capabilities.cap_range.range_5ghz_min = 5120;
+		ah->ah_capabilities.cap_range.range_5ghz_max = 5430;
+		ah->ah_capabilities.cap_range.range_2ghz_min = 0;
+		ah->ah_capabilities.cap_range.range_2ghz_max = 0;
+
+		/* Set supported modes */
+		ah->ah_capabilities.cap_mode |= AR5K_MODE_BIT_11A;
+		ah->ah_capabilities.cap_mode |= AR5K_MODE_BIT_11A_TURBO;
+	} else {
+		/*
+		 * XXX The tranceiver supports frequencies from 4920 to 6100GHz
+		 * XXX and from 2312 to 2732GHz. There are problems with the
+		 * XXX current ieee80211 implementation because the IEEE
+		 * XXX channel mapping does not support negative channel
+		 * XXX numbers (2312MHz is channel -19). Of course, this
+		 * XXX doesn't matter because these channels are out of range
+		 * XXX but some regulation domains like MKK (Japan) will
+		 * XXX support frequencies somewhere around 4.8GHz.
+		 */
+
+		/*
+		 * Set radio capabilities
+		 */
+
+		if (AR5K_EEPROM_HDR_11A(ee_header)) {
+			/* 4920 */
+			ah->ah_capabilities.cap_range.range_5ghz_min = 5005;
+			ah->ah_capabilities.cap_range.range_5ghz_max = 6100;
+
+			/* Set supported modes */
+			ah->ah_capabilities.cap_mode |= AR5K_MODE_BIT_11A;
+			ah->ah_capabilities.cap_mode |= AR5K_MODE_BIT_11A_TURBO;
+			if (ah->ah_version == AR5K_AR5212)
+				ah->ah_capabilities.cap_mode |=
+					AR5K_MODE_BIT_11G_TURBO;
+		}
+
+		/* Enable  802.11b if a 2GHz capable radio (2111/5112) is
+		 * connected */
+		if (AR5K_EEPROM_HDR_11B(ee_header) ||
+		    (AR5K_EEPROM_HDR_11G(ee_header) &&
+		     ah->ah_version != AR5K_AR5211)) {
+			/* 2312 */
+			ah->ah_capabilities.cap_range.range_2ghz_min = 2412;
+			ah->ah_capabilities.cap_range.range_2ghz_max = 2732;
+
+			if (AR5K_EEPROM_HDR_11B(ee_header))
+				ah->ah_capabilities.cap_mode |=
+					AR5K_MODE_BIT_11B;
+
+			if (AR5K_EEPROM_HDR_11G(ee_header) &&
+			    ah->ah_version != AR5K_AR5211)
+				ah->ah_capabilities.cap_mode |=
+					AR5K_MODE_BIT_11G;
+		}
+	}
+
+	/* GPIO */
+	ah->ah_gpio_npins = AR5K_NUM_GPIO;
+
+	/* Set number of supported TX queues */
+	ah->ah_capabilities.cap_queues.q_tx_num = 1;
+
+	return 0;
+}
+
+/* Main function used by the driver part to check caps */
+int ath5k_hw_get_capability(struct ath5k_hw *ah,
+		enum ath5k_capability_type cap_type,
+		u32 capability __unused, u32 *result)
+{
+	switch (cap_type) {
+	case AR5K_CAP_NUM_TXQUEUES:
+		if (result) {
+			*result = 1;
+			goto yes;
+		}
+	case AR5K_CAP_VEOL:
+		goto yes;
+	case AR5K_CAP_COMPRESSION:
+		if (ah->ah_version == AR5K_AR5212)
+			goto yes;
+		else
+			goto no;
+	case AR5K_CAP_BURST:
+		goto yes;
+	case AR5K_CAP_TPC:
+		goto yes;
+	case AR5K_CAP_BSSIDMASK:
+		if (ah->ah_version == AR5K_AR5212)
+			goto yes;
+		else
+			goto no;
+	case AR5K_CAP_XR:
+		if (ah->ah_version == AR5K_AR5212)
+			goto yes;
+		else
+			goto no;
+	default:
+		goto no;
+	}
+
+no:
+	return -EINVAL;
+yes:
+	return 0;
+}

src/drivers/net/ath5k/ath5k_desc.c

@@ -0,0 +1,554 @@
+/*
+ * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
+ * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com>
+ * Copyright (c) 2007-2008 Pavel Roskin <proski@gnu.org>
+ *
+ * Lightly modified for gPXE, July 2009, by Joshua Oreman <oremanj@rwcr.net>.
+ *
+ * Permission to use, copy, modify, and 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.
+ *
+ */
+
+FILE_LICENCE ( MIT );
+
+/******************************\
+ Hardware Descriptor Functions
+\******************************/
+
+#include "ath5k.h"
+#include "reg.h"
+#include "base.h"
+
+/*
+ * TX Descriptors
+ */
+
+#define FCS_LEN	4
+
+/*
+ * Initialize the 2-word tx control descriptor on 5210/5211
+ */
+static int
+ath5k_hw_setup_2word_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
+	unsigned int pkt_len, unsigned int hdr_len, enum ath5k_pkt_type type,
+	unsigned int tx_power __unused, unsigned int tx_rate0, unsigned int tx_tries0,
+	unsigned int key_index __unused, unsigned int antenna_mode, unsigned int flags,
+	unsigned int rtscts_rate __unused, unsigned int rtscts_duration)
+{
+	u32 frame_type;
+	struct ath5k_hw_2w_tx_ctl *tx_ctl;
+	unsigned int frame_len;
+
+	tx_ctl = &desc->ud.ds_tx5210.tx_ctl;
+
+	/*
+	 * Validate input
+	 * - Zero retries don't make sense.
+	 * - A zero rate will put the HW into a mode where it continously sends
+	 *   noise on the channel, so it is important to avoid this.
+	 */
+	if (tx_tries0 == 0) {
+		DBG("ath5k: zero retries\n");
+		return -EINVAL;
+	}
+	if (tx_rate0 == 0) {
+		DBG("ath5k: zero rate\n");
+		return -EINVAL;
+	}
+
+	/* Clear descriptor */
+	memset(&desc->ud.ds_tx5210, 0, sizeof(struct ath5k_hw_5210_tx_desc));
+
+	/* Setup control descriptor */
+
+	/* Verify and set frame length */
+
+	frame_len = pkt_len + FCS_LEN;
+
+	if (frame_len & ~AR5K_2W_TX_DESC_CTL0_FRAME_LEN)
+		return -EINVAL;
+
+	tx_ctl->tx_control_0 = frame_len & AR5K_2W_TX_DESC_CTL0_FRAME_LEN;
+
+	/* Verify and set buffer length */
+
+	if (pkt_len & ~AR5K_2W_TX_DESC_CTL1_BUF_LEN)
+		return -EINVAL;
+
+	tx_ctl->tx_control_1 = pkt_len & AR5K_2W_TX_DESC_CTL1_BUF_LEN;
+
+	/*
+	 * Verify and set header length
+	 * XXX: I only found that on 5210 code, does it work on 5211 ?
+	 */
+	if (ah->ah_version == AR5K_AR5210) {
+		if (hdr_len & ~AR5K_2W_TX_DESC_CTL0_HEADER_LEN)
+			return -EINVAL;
+		tx_ctl->tx_control_0 |=
+			AR5K_REG_SM(hdr_len, AR5K_2W_TX_DESC_CTL0_HEADER_LEN);
+	}
+
+	/*Diferences between 5210-5211*/
+	if (ah->ah_version == AR5K_AR5210) {
+		switch (type) {
+		case AR5K_PKT_TYPE_BEACON:
+		case AR5K_PKT_TYPE_PROBE_RESP:
+			frame_type = AR5K_AR5210_TX_DESC_FRAME_TYPE_NO_DELAY;
+		case AR5K_PKT_TYPE_PIFS:
+			frame_type = AR5K_AR5210_TX_DESC_FRAME_TYPE_PIFS;
+		default:
+			frame_type = type /*<< 2 ?*/;
+		}
+
+		tx_ctl->tx_control_0 |=
+		AR5K_REG_SM(frame_type, AR5K_2W_TX_DESC_CTL0_FRAME_TYPE) |
+		AR5K_REG_SM(tx_rate0, AR5K_2W_TX_DESC_CTL0_XMIT_RATE);
+
+	} else {
+		tx_ctl->tx_control_0 |=
+			AR5K_REG_SM(tx_rate0, AR5K_2W_TX_DESC_CTL0_XMIT_RATE) |
+			AR5K_REG_SM(antenna_mode,
+				AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT);
+		tx_ctl->tx_control_1 |=
+			AR5K_REG_SM(type, AR5K_2W_TX_DESC_CTL1_FRAME_TYPE);
+	}
+#define _TX_FLAGS(_c, _flag)					\
+	if (flags & AR5K_TXDESC_##_flag) {			\
+		tx_ctl->tx_control_##_c |=			\
+			AR5K_2W_TX_DESC_CTL##_c##_##_flag;	\
+	}
+
+	_TX_FLAGS(0, CLRDMASK);
+	_TX_FLAGS(0, VEOL);
+	_TX_FLAGS(0, INTREQ);
+	_TX_FLAGS(0, RTSENA);
+	_TX_FLAGS(1, NOACK);
+
+#undef _TX_FLAGS
+
+	/*
+	 * RTS/CTS Duration [5210 ?]
+	 */
+	if ((ah->ah_version == AR5K_AR5210) &&
+			(flags & (AR5K_TXDESC_RTSENA | AR5K_TXDESC_CTSENA)))
+		tx_ctl->tx_control_1 |= rtscts_duration &
+				AR5K_2W_TX_DESC_CTL1_RTS_DURATION;
+
+	return 0;
+}
+
+/*
+ * Initialize the 4-word tx control descriptor on 5212
+ */
+static int ath5k_hw_setup_4word_tx_desc(struct ath5k_hw *ah,
+	struct ath5k_desc *desc, unsigned int pkt_len, unsigned int hdr_len __unused,
+	enum ath5k_pkt_type type, unsigned int tx_power, unsigned int tx_rate0,
+	unsigned int tx_tries0, unsigned int key_index __unused,
+	unsigned int antenna_mode, unsigned int flags,
+	unsigned int rtscts_rate,
+	unsigned int rtscts_duration)
+{
+	struct ath5k_hw_4w_tx_ctl *tx_ctl;
+	unsigned int frame_len;
+
+	tx_ctl = &desc->ud.ds_tx5212.tx_ctl;
+
+	/*
+	 * Validate input
+	 * - Zero retries don't make sense.
+	 * - A zero rate will put the HW into a mode where it continously sends
+	 *   noise on the channel, so it is important to avoid this.
+	 */
+	if (tx_tries0 == 0) {
+		DBG("ath5k: zero retries\n");
+		return -EINVAL;
+	}
+	if (tx_rate0 == 0) {
+		DBG("ath5k: zero rate\n");
+		return -EINVAL;
+	}
+
+	tx_power += ah->ah_txpower.txp_offset;
+	if (tx_power > AR5K_TUNE_MAX_TXPOWER)
+		tx_power = AR5K_TUNE_MAX_TXPOWER;
+
+	/* Clear descriptor */
+	memset(&desc->ud.ds_tx5212, 0, sizeof(struct ath5k_hw_5212_tx_desc));
+
+	/* Setup control descriptor */
+
+	/* Verify and set frame length */
+
+	frame_len = pkt_len + FCS_LEN;
+
+	if (frame_len & ~AR5K_4W_TX_DESC_CTL0_FRAME_LEN)
+		return -EINVAL;
+
+	tx_ctl->tx_control_0 = frame_len & AR5K_4W_TX_DESC_CTL0_FRAME_LEN;
+
+	/* Verify and set buffer length */
+
+	if (pkt_len & ~AR5K_4W_TX_DESC_CTL1_BUF_LEN)
+		return -EINVAL;
+
+	tx_ctl->tx_control_1 = pkt_len & AR5K_4W_TX_DESC_CTL1_BUF_LEN;
+
+	tx_ctl->tx_control_0 |=
+		AR5K_REG_SM(tx_power, AR5K_4W_TX_DESC_CTL0_XMIT_POWER) |
+		AR5K_REG_SM(antenna_mode, AR5K_4W_TX_DESC_CTL0_ANT_MODE_XMIT);
+	tx_ctl->tx_control_1 |= AR5K_REG_SM(type,
+					AR5K_4W_TX_DESC_CTL1_FRAME_TYPE);
+	tx_ctl->tx_control_2 = AR5K_REG_SM(tx_tries0 + AR5K_TUNE_HWTXTRIES,
+					AR5K_4W_TX_DESC_CTL2_XMIT_TRIES0);
+	tx_ctl->tx_control_3 = tx_rate0 & AR5K_4W_TX_DESC_CTL3_XMIT_RATE0;
+
+#define _TX_FLAGS(_c, _flag)					\
+	if (flags & AR5K_TXDESC_##_flag) {			\
+		tx_ctl->tx_control_##_c |=			\
+			AR5K_4W_TX_DESC_CTL##_c##_##_flag;	\
+	}
+
+	_TX_FLAGS(0, CLRDMASK);
+	_TX_FLAGS(0, VEOL);
+	_TX_FLAGS(0, INTREQ);
+	_TX_FLAGS(0, RTSENA);
+	_TX_FLAGS(0, CTSENA);
+	_TX_FLAGS(1, NOACK);
+
+#undef _TX_FLAGS
+
+	/*
+	 * RTS/CTS
+	 */
+	if (flags & (AR5K_TXDESC_RTSENA | AR5K_TXDESC_CTSENA)) {
+		if ((flags & AR5K_TXDESC_RTSENA) &&
+				(flags & AR5K_TXDESC_CTSENA))
+			return -EINVAL;
+		tx_ctl->tx_control_2 |= rtscts_duration &
+				AR5K_4W_TX_DESC_CTL2_RTS_DURATION;
+		tx_ctl->tx_control_3 |= AR5K_REG_SM(rtscts_rate,
+				AR5K_4W_TX_DESC_CTL3_RTS_CTS_RATE);
+	}
+
+	return 0;
+}
+
+/*
+ * Proccess the tx status descriptor on 5210/5211
+ */
+static int ath5k_hw_proc_2word_tx_status(struct ath5k_hw *ah __unused,
+		struct ath5k_desc *desc, struct ath5k_tx_status *ts)
+{
+	struct ath5k_hw_2w_tx_ctl *tx_ctl;
+	struct ath5k_hw_tx_status *tx_status;
+
+	tx_ctl = &desc->ud.ds_tx5210.tx_ctl;
+	tx_status = &desc->ud.ds_tx5210.tx_stat;
+
+	/* No frame has been send or error */
+	if ((tx_status->tx_status_1 & AR5K_DESC_TX_STATUS1_DONE) == 0)
+		return -EINPROGRESS;
+
+	/*
+	 * Get descriptor status
+	 */
+	ts->ts_tstamp = AR5K_REG_MS(tx_status->tx_status_0,
+		AR5K_DESC_TX_STATUS0_SEND_TIMESTAMP);
+	ts->ts_shortretry = AR5K_REG_MS(tx_status->tx_status_0,
+		AR5K_DESC_TX_STATUS0_SHORT_RETRY_COUNT);
+	ts->ts_longretry = AR5K_REG_MS(tx_status->tx_status_0,
+		AR5K_DESC_TX_STATUS0_LONG_RETRY_COUNT);
+	/*TODO: ts->ts_virtcol + test*/
+	ts->ts_seqnum = AR5K_REG_MS(tx_status->tx_status_1,
+		AR5K_DESC_TX_STATUS1_SEQ_NUM);
+	ts->ts_rssi = AR5K_REG_MS(tx_status->tx_status_1,
+		AR5K_DESC_TX_STATUS1_ACK_SIG_STRENGTH);
+	ts->ts_antenna = 1;
+	ts->ts_status = 0;
+	ts->ts_rate[0] = AR5K_REG_MS(tx_ctl->tx_control_0,
+		AR5K_2W_TX_DESC_CTL0_XMIT_RATE);
+	ts->ts_retry[0] = ts->ts_longretry;
+	ts->ts_final_idx = 0;
+
+	if (!(tx_status->tx_status_0 & AR5K_DESC_TX_STATUS0_FRAME_XMIT_OK)) {
+		if (tx_status->tx_status_0 &
+				AR5K_DESC_TX_STATUS0_EXCESSIVE_RETRIES)
+			ts->ts_status |= AR5K_TXERR_XRETRY;
+
+		if (tx_status->tx_status_0 & AR5K_DESC_TX_STATUS0_FIFO_UNDERRUN)
+			ts->ts_status |= AR5K_TXERR_FIFO;
+
+		if (tx_status->tx_status_0 & AR5K_DESC_TX_STATUS0_FILTERED)
+			ts->ts_status |= AR5K_TXERR_FILT;
+	}
+
+	return 0;
+}
+
+/*
+ * Proccess a tx status descriptor on 5212
+ */
+static int ath5k_hw_proc_4word_tx_status(struct ath5k_hw *ah __unused,
+		struct ath5k_desc *desc, struct ath5k_tx_status *ts)
+{
+	struct ath5k_hw_4w_tx_ctl *tx_ctl;
+	struct ath5k_hw_tx_status *tx_status;
+
+	tx_ctl = &desc->ud.ds_tx5212.tx_ctl;
+	tx_status = &desc->ud.ds_tx5212.tx_stat;
+
+	/* No frame has been send or error */
+	if (!(tx_status->tx_status_1 & AR5K_DESC_TX_STATUS1_DONE))
+		return -EINPROGRESS;
+
+	/*
+	 * Get descriptor status
+	 */
+	ts->ts_tstamp = AR5K_REG_MS(tx_status->tx_status_0,
+		AR5K_DESC_TX_STATUS0_SEND_TIMESTAMP);
+	ts->ts_shortretry = AR5K_REG_MS(tx_status->tx_status_0,
+		AR5K_DESC_TX_STATUS0_SHORT_RETRY_COUNT);
+	ts->ts_longretry = AR5K_REG_MS(tx_status->tx_status_0,
+		AR5K_DESC_TX_STATUS0_LONG_RETRY_COUNT);
+	ts->ts_seqnum = AR5K_REG_MS(tx_status->tx_status_1,
+		AR5K_DESC_TX_STATUS1_SEQ_NUM);
+	ts->ts_rssi = AR5K_REG_MS(tx_status->tx_status_1,
+		AR5K_DESC_TX_STATUS1_ACK_SIG_STRENGTH);
+	ts->ts_antenna = (tx_status->tx_status_1 &
+		AR5K_DESC_TX_STATUS1_XMIT_ANTENNA) ? 2 : 1;
+	ts->ts_status = 0;
+
+	ts->ts_final_idx = AR5K_REG_MS(tx_status->tx_status_1,
+			AR5K_DESC_TX_STATUS1_FINAL_TS_INDEX);
+
+	ts->ts_retry[0] = ts->ts_longretry;
+	ts->ts_rate[0] = tx_ctl->tx_control_3 &
+		AR5K_4W_TX_DESC_CTL3_XMIT_RATE0;
+
+	/* TX error */
+	if (!(tx_status->tx_status_0 & AR5K_DESC_TX_STATUS0_FRAME_XMIT_OK)) {
+		if (tx_status->tx_status_0 &
+				AR5K_DESC_TX_STATUS0_EXCESSIVE_RETRIES)
+			ts->ts_status |= AR5K_TXERR_XRETRY;
+
+		if (tx_status->tx_status_0 & AR5K_DESC_TX_STATUS0_FIFO_UNDERRUN)
+			ts->ts_status |= AR5K_TXERR_FIFO;
+
+		if (tx_status->tx_status_0 & AR5K_DESC_TX_STATUS0_FILTERED)
+			ts->ts_status |= AR5K_TXERR_FILT;
+	}
+
+	return 0;
+}
+
+/*
+ * RX Descriptors
+ */
+
+/*
+ * Initialize an rx control descriptor
+ */
+static int ath5k_hw_setup_rx_desc(struct ath5k_hw *ah __unused,
+				  struct ath5k_desc *desc,
+				  u32 size, unsigned int flags)
+{
+	struct ath5k_hw_rx_ctl *rx_ctl;
+
+	rx_ctl = &desc->ud.ds_rx.rx_ctl;
+
+	/*
+	 * Clear the descriptor
+	 * If we don't clean the status descriptor,
+	 * while scanning we get too many results,
+	 * most of them virtual, after some secs
+	 * of scanning system hangs. M.F.
+	*/
+	memset(&desc->ud.ds_rx, 0, sizeof(struct ath5k_hw_all_rx_desc));
+
+	/* Setup descriptor */
+	rx_ctl->rx_control_1 = size & AR5K_DESC_RX_CTL1_BUF_LEN;
+	if (rx_ctl->rx_control_1 != size)
+		return -EINVAL;
+
+	if (flags & AR5K_RXDESC_INTREQ)
+		rx_ctl->rx_control_1 |= AR5K_DESC_RX_CTL1_INTREQ;
+
+	if (desc->ds_link < ah->ah_sc->desc_daddr ||
+	    desc->ds_link + sizeof(struct ath5k_desc) > ah->ah_sc->desc_daddr + ah->ah_sc->desc_len ||
+	    size != 2400 ||
+	    *(void **)bus_to_virt(desc->ds_data + 2408) != bus_to_virt(desc->ds_data)) {
+		DBG("ath5k! set rx desc %p for %d bytes at %p (%08x) link to %p (%08x)\n",
+		    desc, size, bus_to_virt(desc->ds_data), desc->ds_data,
+		    bus_to_virt(desc->ds_link), desc->ds_link);
+		asm("cli;hlt");
+	}
+
+	return 0;
+}
+
+/*
+ * Proccess the rx status descriptor on 5210/5211
+ */
+static int ath5k_hw_proc_5210_rx_status(struct ath5k_hw *ah __unused,
+		struct ath5k_desc *desc, struct ath5k_rx_status *rs)
+{
+	struct ath5k_hw_rx_status *rx_status;
+
+	rx_status = &desc->ud.ds_rx.u.rx_stat;
+
+	/* No frame received / not ready */
+	if (!(rx_status->rx_status_1 & AR5K_5210_RX_DESC_STATUS1_DONE))
+		return -EINPROGRESS;
+
+	/*
+	 * Frame receive status
+	 */
+	rs->rs_datalen = rx_status->rx_status_0 &
+		AR5K_5210_RX_DESC_STATUS0_DATA_LEN;
+	rs->rs_rssi = AR5K_REG_MS(rx_status->rx_status_0,
+		AR5K_5210_RX_DESC_STATUS0_RECEIVE_SIGNAL);
+	rs->rs_rate = AR5K_REG_MS(rx_status->rx_status_0,
+		AR5K_5210_RX_DESC_STATUS0_RECEIVE_RATE);
+	rs->rs_antenna = AR5K_REG_MS(rx_status->rx_status_0,
+		AR5K_5210_RX_DESC_STATUS0_RECEIVE_ANTENNA);
+	rs->rs_more = !!(rx_status->rx_status_0 &
+		AR5K_5210_RX_DESC_STATUS0_MORE);
+	/* TODO: this timestamp is 13 bit, later on we assume 15 bit */
+	rs->rs_tstamp = AR5K_REG_MS(rx_status->rx_status_1,
+		AR5K_5210_RX_DESC_STATUS1_RECEIVE_TIMESTAMP);
+	rs->rs_status = 0;
+	rs->rs_phyerr = 0;
+	rs->rs_keyix = AR5K_RXKEYIX_INVALID;
+
+	/*
+	 * Receive/descriptor errors
+	 */
+	if (!(rx_status->rx_status_1 &
+	      AR5K_5210_RX_DESC_STATUS1_FRAME_RECEIVE_OK)) {
+		if (rx_status->rx_status_1 &
+				AR5K_5210_RX_DESC_STATUS1_CRC_ERROR)
+			rs->rs_status |= AR5K_RXERR_CRC;
+
+		if (rx_status->rx_status_1 &
+				AR5K_5210_RX_DESC_STATUS1_FIFO_OVERRUN)
+			rs->rs_status |= AR5K_RXERR_FIFO;
+
+		if (rx_status->rx_status_1 &
+				AR5K_5210_RX_DESC_STATUS1_PHY_ERROR) {
+			rs->rs_status |= AR5K_RXERR_PHY;
+			rs->rs_phyerr |= AR5K_REG_MS(rx_status->rx_status_1,
+				AR5K_5210_RX_DESC_STATUS1_PHY_ERROR);
+		}
+
+		if (rx_status->rx_status_1 &
+				AR5K_5210_RX_DESC_STATUS1_DECRYPT_CRC_ERROR)
+			rs->rs_status |= AR5K_RXERR_DECRYPT;
+	}
+
+	return 0;
+}
+
+/*
+ * Proccess the rx status descriptor on 5212
+ */
+static int ath5k_hw_proc_5212_rx_status(struct ath5k_hw *ah __unused,
+		struct ath5k_desc *desc, struct ath5k_rx_status *rs)
+{
+	struct ath5k_hw_rx_status *rx_status;
+	struct ath5k_hw_rx_error *rx_err;
+
+	rx_status = &desc->ud.ds_rx.u.rx_stat;
+
+	/* Overlay on error */
+	rx_err = &desc->ud.ds_rx.u.rx_err;
+
+	/* No frame received / not ready */
+	if (!(rx_status->rx_status_1 & AR5K_5212_RX_DESC_STATUS1_DONE))
+		return -EINPROGRESS;
+
+	/*
+	 * Frame receive status
+	 */
+	rs->rs_datalen = rx_status->rx_status_0 &
+		AR5K_5212_RX_DESC_STATUS0_DATA_LEN;
+	rs->rs_rssi = AR5K_REG_MS(rx_status->rx_status_0,
+		AR5K_5212_RX_DESC_STATUS0_RECEIVE_SIGNAL);
+	rs->rs_rate = AR5K_REG_MS(rx_status->rx_status_0,
+		AR5K_5212_RX_DESC_STATUS0_RECEIVE_RATE);
+	rs->rs_antenna = AR5K_REG_MS(rx_status->rx_status_0,
+		AR5K_5212_RX_DESC_STATUS0_RECEIVE_ANTENNA);
+	rs->rs_more = !!(rx_status->rx_status_0 &
+		AR5K_5212_RX_DESC_STATUS0_MORE);
+	rs->rs_tstamp = AR5K_REG_MS(rx_status->rx_status_1,
+		AR5K_5212_RX_DESC_STATUS1_RECEIVE_TIMESTAMP);
+	rs->rs_status = 0;
+	rs->rs_phyerr = 0;
+	rs->rs_keyix = AR5K_RXKEYIX_INVALID;
+
+	/*
+	 * Receive/descriptor errors
+	 */
+	if (!(rx_status->rx_status_1 &
+	      AR5K_5212_RX_DESC_STATUS1_FRAME_RECEIVE_OK)) {
+		if (rx_status->rx_status_1 &
+				AR5K_5212_RX_DESC_STATUS1_CRC_ERROR)
+			rs->rs_status |= AR5K_RXERR_CRC;
+
+		if (rx_status->rx_status_1 &
+				AR5K_5212_RX_DESC_STATUS1_PHY_ERROR) {
+			rs->rs_status |= AR5K_RXERR_PHY;
+			rs->rs_phyerr |= AR5K_REG_MS(rx_err->rx_error_1,
+					   AR5K_RX_DESC_ERROR1_PHY_ERROR_CODE);
+		}
+
+		if (rx_status->rx_status_1 &
+				AR5K_5212_RX_DESC_STATUS1_DECRYPT_CRC_ERROR)
+			rs->rs_status |= AR5K_RXERR_DECRYPT;
+
+		if (rx_status->rx_status_1 &
+				AR5K_5212_RX_DESC_STATUS1_MIC_ERROR)
+			rs->rs_status |= AR5K_RXERR_MIC;
+	}
+
+	return 0;
+}
+
+/*
+ * Init function pointers inside ath5k_hw struct
+ */
+int ath5k_hw_init_desc_functions(struct ath5k_hw *ah)
+{
+
+	if (ah->ah_version != AR5K_AR5210 &&
+	    ah->ah_version != AR5K_AR5211 &&
+	    ah->ah_version != AR5K_AR5212)
+		return -ENOTSUP;
+
+	if (ah->ah_version == AR5K_AR5212) {
+		ah->ah_setup_rx_desc = ath5k_hw_setup_rx_desc;
+		ah->ah_setup_tx_desc = ath5k_hw_setup_4word_tx_desc;
+		ah->ah_proc_tx_desc = ath5k_hw_proc_4word_tx_status;
+	} else {
+		ah->ah_setup_rx_desc = ath5k_hw_setup_rx_desc;
+		ah->ah_setup_tx_desc = ath5k_hw_setup_2word_tx_desc;
+		ah->ah_proc_tx_desc = ath5k_hw_proc_2word_tx_status;
+	}
+
+	if (ah->ah_version == AR5K_AR5212)
+		ah->ah_proc_rx_desc = ath5k_hw_proc_5212_rx_status;
+	else if (ah->ah_version <= AR5K_AR5211)
+		ah->ah_proc_rx_desc = ath5k_hw_proc_5210_rx_status;
+
+	return 0;
+}
+

src/drivers/net/ath5k/ath5k_dma.c

@@ -0,0 +1,631 @@
+/*
+ * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
+ * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com>
+ *
+ * Lightly modified for gPXE, July 2009, by Joshua Oreman <oremanj@rwcr.net>.
+ *
+ * Permission to use, copy, modify, and 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.
+ *
+ */
+
+FILE_LICENCE ( MIT );
+
+/*************************************\
+* DMA and interrupt masking functions *
+\*************************************/
+
+/*
+ * dma.c - DMA and interrupt masking functions
+ *
+ * Here we setup descriptor pointers (rxdp/txdp) start/stop dma engine and
+ * handle queue setup for 5210 chipset (rest are handled on qcu.c).
+ * Also we setup interrupt mask register (IMR) and read the various iterrupt
+ * status registers (ISR).
+ *
+ * TODO: Handle SISR on 5211+ and introduce a function to return the queue
+ * number that resulted the interrupt.
+ */
+
+#include <unistd.h>
+
+#include "ath5k.h"
+#include "reg.h"
+#include "base.h"
+
+/*********\
+* Receive *
+\*********/
+
+/**
+ * ath5k_hw_start_rx_dma - Start DMA receive
+ *
+ * @ah:	The &struct ath5k_hw
+ */
+void ath5k_hw_start_rx_dma(struct ath5k_hw *ah)
+{
+	ath5k_hw_reg_write(ah, AR5K_CR_RXE, AR5K_CR);
+	ath5k_hw_reg_read(ah, AR5K_CR);
+}
+
+/**
+ * ath5k_hw_stop_rx_dma - Stop DMA receive
+ *
+ * @ah:	The &struct ath5k_hw
+ */
+int ath5k_hw_stop_rx_dma(struct ath5k_hw *ah)
+{
+	unsigned int i;
+
+	ath5k_hw_reg_write(ah, AR5K_CR_RXD, AR5K_CR);
+
+	/*
+	 * It may take some time to disable the DMA receive unit
+	 */
+	for (i = 1000; i > 0 &&
+			(ath5k_hw_reg_read(ah, AR5K_CR) & AR5K_CR_RXE) != 0;
+			i--)
+		udelay(10);
+
+	return i ? 0 : -EBUSY;
+}
+
+/**
+ * ath5k_hw_get_rxdp - Get RX Descriptor's address
+ *
+ * @ah: The &struct ath5k_hw
+ *
+ * XXX: Is RXDP read and clear ?
+ */
+u32 ath5k_hw_get_rxdp(struct ath5k_hw *ah)
+{
+	return ath5k_hw_reg_read(ah, AR5K_RXDP);
+}
+
+/**
+ * ath5k_hw_set_rxdp - Set RX Descriptor's address
+ *
+ * @ah: The &struct ath5k_hw
+ * @phys_addr: RX descriptor address
+ *
+ * XXX: Should we check if rx is enabled before setting rxdp ?
+ */
+void ath5k_hw_set_rxdp(struct ath5k_hw *ah, u32 phys_addr)
+{
+	ath5k_hw_reg_write(ah, phys_addr, AR5K_RXDP);
+}
+
+
+/**********\
+* Transmit *
+\**********/
+
+/**
+ * ath5k_hw_start_tx_dma - Start DMA transmit for a specific queue
+ *
+ * @ah: The &struct ath5k_hw
+ * @queue: The hw queue number
+ *
+ * Start DMA transmit for a specific queue and since 5210 doesn't have
+ * QCU/DCU, set up queue parameters for 5210 here based on queue type (one
+ * queue for normal data and one queue for beacons). For queue setup
+ * on newer chips check out qcu.c. Returns -EINVAL if queue number is out
+ * of range or if queue is already disabled.
+ *
+ * NOTE: Must be called after setting up tx control descriptor for that
+ * queue (see below).
+ */
+int ath5k_hw_start_tx_dma(struct ath5k_hw *ah, unsigned int queue)
+{
+	u32 tx_queue;
+
+	/* Return if queue is declared inactive */
+	if (ah->ah_txq.tqi_type == AR5K_TX_QUEUE_INACTIVE)
+		return -EIO;
+
+	if (ah->ah_version == AR5K_AR5210) {
+		tx_queue = ath5k_hw_reg_read(ah, AR5K_CR);
+
+		/* Assume always a data queue */
+		tx_queue |= AR5K_CR_TXE0 & ~AR5K_CR_TXD0;
+
+		/* Start queue */
+		ath5k_hw_reg_write(ah, tx_queue, AR5K_CR);
+		ath5k_hw_reg_read(ah, AR5K_CR);
+	} else {
+		/* Return if queue is disabled */
+		if (AR5K_REG_READ_Q(ah, AR5K_QCU_TXD, queue))
+			return -EIO;
+
+		/* Start queue */
+		AR5K_REG_WRITE_Q(ah, AR5K_QCU_TXE, queue);
+	}
+
+	return 0;
+}
+
+/**
+ * ath5k_hw_stop_tx_dma - Stop DMA transmit on a specific queue
+ *
+ * @ah: The &struct ath5k_hw
+ * @queue: The hw queue number
+ *
+ * Stop DMA transmit on a specific hw queue and drain queue so we don't
+ * have any pending frames. Returns -EBUSY if we still have pending frames,
+ * -EINVAL if queue number is out of range.
+ *
+ */
+int ath5k_hw_stop_tx_dma(struct ath5k_hw *ah, unsigned int queue)
+{
+	unsigned int i = 40;
+	u32 tx_queue, pending;
+
+	/* Return if queue is declared inactive */
+	if (ah->ah_txq.tqi_type == AR5K_TX_QUEUE_INACTIVE)
+		return -EIO;
+
+	if (ah->ah_version == AR5K_AR5210) {
+		tx_queue = ath5k_hw_reg_read(ah, AR5K_CR);
+
+		/* Assume a data queue */
+		tx_queue |= AR5K_CR_TXD0 & ~AR5K_CR_TXE0;
+
+		/* Stop queue */
+		ath5k_hw_reg_write(ah, tx_queue, AR5K_CR);
+		ath5k_hw_reg_read(ah, AR5K_CR);
+	} else {
+		/*
+		 * Schedule TX disable and wait until queue is empty
+		 */
+		AR5K_REG_WRITE_Q(ah, AR5K_QCU_TXD, queue);
+
+		/*Check for pending frames*/
+		do {
+			pending = ath5k_hw_reg_read(ah,
+				AR5K_QUEUE_STATUS(queue)) &
+				AR5K_QCU_STS_FRMPENDCNT;
+			udelay(100);
+		} while (--i && pending);
+
+		/* For 2413+ order PCU to drop packets using
+		 * QUIET mechanism */
+		if (ah->ah_mac_version >= (AR5K_SREV_AR2414 >> 4) && pending) {
+			/* Set periodicity and duration */
+			ath5k_hw_reg_write(ah,
+				AR5K_REG_SM(100, AR5K_QUIET_CTL2_QT_PER)|
+				AR5K_REG_SM(10, AR5K_QUIET_CTL2_QT_DUR),
+				AR5K_QUIET_CTL2);
+
+			/* Enable quiet period for current TSF */
+			ath5k_hw_reg_write(ah,
+				AR5K_QUIET_CTL1_QT_EN |
+				AR5K_REG_SM(ath5k_hw_reg_read(ah,
+						AR5K_TSF_L32_5211) >> 10,
+						AR5K_QUIET_CTL1_NEXT_QT_TSF),
+				AR5K_QUIET_CTL1);
+
+			/* Force channel idle high */
+			AR5K_REG_ENABLE_BITS(ah, AR5K_DIAG_SW_5211,
+					AR5K_DIAG_SW_CHANEL_IDLE_HIGH);
+
+			/* Wait a while and disable mechanism */
+			udelay(200);
+			AR5K_REG_DISABLE_BITS(ah, AR5K_QUIET_CTL1,
+						AR5K_QUIET_CTL1_QT_EN);
+
+			/* Re-check for pending frames */
+			i = 40;
+			do {
+				pending = ath5k_hw_reg_read(ah,
+					AR5K_QUEUE_STATUS(queue)) &
+					AR5K_QCU_STS_FRMPENDCNT;
+				udelay(100);
+			} while (--i && pending);
+
+			AR5K_REG_DISABLE_BITS(ah, AR5K_DIAG_SW_5211,
+					AR5K_DIAG_SW_CHANEL_IDLE_HIGH);
+		}
+
+		/* Clear register */
+		ath5k_hw_reg_write(ah, 0, AR5K_QCU_TXD);
+		if (pending)
+			return -EBUSY;
+	}
+
+	/* TODO: Check for success on 5210 else return error */
+	return 0;
+}
+
+/**
+ * ath5k_hw_get_txdp - Get TX Descriptor's address for a specific queue
+ *
+ * @ah: The &struct ath5k_hw
+ * @queue: The hw queue number
+ *
+ * Get TX descriptor's address for a specific queue. For 5210 we ignore
+ * the queue number and use tx queue type since we only have 2 queues.
+ * We use TXDP0 for normal data queue and TXDP1 for beacon queue.
+ * For newer chips with QCU/DCU we just read the corresponding TXDP register.
+ *
+ * XXX: Is TXDP read and clear ?
+ */
+u32 ath5k_hw_get_txdp(struct ath5k_hw *ah, unsigned int queue)
+{
+	u16 tx_reg;
+
+	/*
+	 * Get the transmit queue descriptor pointer from the selected queue
+	 */
+	/*5210 doesn't have QCU*/
+	if (ah->ah_version == AR5K_AR5210) {
+		/* Assume a data queue */
+		tx_reg = AR5K_NOQCU_TXDP0;
+	} else {
+		tx_reg = AR5K_QUEUE_TXDP(queue);
+	}
+
+	return ath5k_hw_reg_read(ah, tx_reg);
+}
+
+/**
+ * ath5k_hw_set_txdp - Set TX Descriptor's address for a specific queue
+ *
+ * @ah: The &struct ath5k_hw
+ * @queue: The hw queue number
+ *
+ * Set TX descriptor's address for a specific queue. For 5210 we ignore
+ * the queue number and we use tx queue type since we only have 2 queues
+ * so as above we use TXDP0 for normal data queue and TXDP1 for beacon queue.
+ * For newer chips with QCU/DCU we just set the corresponding TXDP register.
+ * Returns -EINVAL if queue type is invalid for 5210 and -EIO if queue is still
+ * active.
+ */
+int ath5k_hw_set_txdp(struct ath5k_hw *ah, unsigned int queue, u32 phys_addr)
+{
+	u16 tx_reg;
+
+	/*
+	 * Set the transmit queue descriptor pointer register by type
+	 * on 5210
+	 */
+	if (ah->ah_version == AR5K_AR5210) {
+		/* Assume a data queue */
+		tx_reg = AR5K_NOQCU_TXDP0;
+	} else {
+		/*
+		 * Set the transmit queue descriptor pointer for
+		 * the selected queue on QCU for 5211+
+		 * (this won't work if the queue is still active)
+		 */
+		if (AR5K_REG_READ_Q(ah, AR5K_QCU_TXE, queue))
+			return -EIO;
+
+		tx_reg = AR5K_QUEUE_TXDP(queue);
+	}
+
+	/* Set descriptor pointer */
+	ath5k_hw_reg_write(ah, phys_addr, tx_reg);
+
+	return 0;
+}
+
+/**
+ * ath5k_hw_update_tx_triglevel - Update tx trigger level
+ *
+ * @ah: The &struct ath5k_hw
+ * @increase: Flag to force increase of trigger level
+ *
+ * This function increases/decreases the tx trigger level for the tx fifo
+ * buffer (aka FIFO threshold) that is used to indicate when PCU flushes
+ * the buffer and transmits it's data. Lowering this results sending small
+ * frames more quickly but can lead to tx underruns, raising it a lot can
+ * result other problems (i think bmiss is related). Right now we start with
+ * the lowest possible (64Bytes) and if we get tx underrun we increase it using
+ * the increase flag. Returns -EIO if we have have reached maximum/minimum.
+ *
+ * XXX: Link this with tx DMA size ?
+ * XXX: Use it to save interrupts ?
+ * TODO: Needs testing, i think it's related to bmiss...
+ */
+int ath5k_hw_update_tx_triglevel(struct ath5k_hw *ah, int increase)
+{
+	u32 trigger_level, imr;
+	int ret = -EIO;
+
+	/*
+	 * Disable interrupts by setting the mask
+	 */
+	imr = ath5k_hw_set_imr(ah, ah->ah_imr & ~AR5K_INT_GLOBAL);
+
+	trigger_level = AR5K_REG_MS(ath5k_hw_reg_read(ah, AR5K_TXCFG),
+			AR5K_TXCFG_TXFULL);
+
+	if (!increase) {
+		if (--trigger_level < AR5K_TUNE_MIN_TX_FIFO_THRES)
+			goto done;
+	} else
+		trigger_level +=
+			((AR5K_TUNE_MAX_TX_FIFO_THRES - trigger_level) / 2);
+
+	/*
+	 * Update trigger level on success
+	 */
+	if (ah->ah_version == AR5K_AR5210)
+		ath5k_hw_reg_write(ah, trigger_level, AR5K_TRIG_LVL);
+	else
+		AR5K_REG_WRITE_BITS(ah, AR5K_TXCFG,
+				AR5K_TXCFG_TXFULL, trigger_level);
+
+	ret = 0;
+
+done:
+	/*
+	 * Restore interrupt mask
+	 */
+	ath5k_hw_set_imr(ah, imr);
+
+	return ret;
+}
+
+/*******************\
+* Interrupt masking *
+\*******************/
+
+/**
+ * ath5k_hw_is_intr_pending - Check if we have pending interrupts
+ *
+ * @ah: The &struct ath5k_hw
+ *
+ * Check if we have pending interrupts to process. Returns 1 if we
+ * have pending interrupts and 0 if we haven't.
+ */
+int ath5k_hw_is_intr_pending(struct ath5k_hw *ah)
+{
+	return ath5k_hw_reg_read(ah, AR5K_INTPEND) == 1 ? 1 : 0;
+}
+
+/**
+ * ath5k_hw_get_isr - Get interrupt status
+ *
+ * @ah: The @struct ath5k_hw
+ * @interrupt_mask: Driver's interrupt mask used to filter out
+ * interrupts in sw.
+ *
+ * This function is used inside our interrupt handler to determine the reason
+ * for the interrupt by reading Primary Interrupt Status Register. Returns an
+ * abstract interrupt status mask which is mostly ISR with some uncommon bits
+ * being mapped on some standard non hw-specific positions
+ * (check out &ath5k_int).
+ *
+ * NOTE: We use read-and-clear register, so after this function is called ISR
+ * is zeroed.
+ */
+int ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask)
+{
+	u32 data;
+
+	/*
+	 * Read interrupt status from the Interrupt Status register
+	 * on 5210
+	 */
+	if (ah->ah_version == AR5K_AR5210) {
+		data = ath5k_hw_reg_read(ah, AR5K_ISR);
+		if (data == AR5K_INT_NOCARD) {
+			*interrupt_mask = data;
+			return -ENODEV;
+		}
+	} else {
+		/*
+		 * Read interrupt status from Interrupt
+		 * Status Register shadow copy (Read And Clear)
+		 *
+		 * Note: PISR/SISR Not available on 5210
+		 */
+		data = ath5k_hw_reg_read(ah, AR5K_RAC_PISR);
+		if (data == AR5K_INT_NOCARD) {
+			*interrupt_mask = data;
+			return -ENODEV;
+		}
+	}
+
+	/*
+	 * Get abstract interrupt mask (driver-compatible)
+	 */
+	*interrupt_mask = (data & AR5K_INT_COMMON) & ah->ah_imr;
+
+	if (ah->ah_version != AR5K_AR5210) {
+		u32 sisr2 = ath5k_hw_reg_read(ah, AR5K_RAC_SISR2);
+
+		/*HIU = Host Interface Unit (PCI etc)*/
+		if (data & (AR5K_ISR_HIUERR))
+			*interrupt_mask |= AR5K_INT_FATAL;
+
+		/*Beacon Not Ready*/
+		if (data & (AR5K_ISR_BNR))
+			*interrupt_mask |= AR5K_INT_BNR;
+
+		if (sisr2 & (AR5K_SISR2_SSERR | AR5K_SISR2_DPERR |
+			     AR5K_SISR2_MCABT))
+			*interrupt_mask |= AR5K_INT_FATAL;
+
+		if (data & AR5K_ISR_TIM)
+			*interrupt_mask |= AR5K_INT_TIM;
+
+		if (data & AR5K_ISR_BCNMISC) {
+			if (sisr2 & AR5K_SISR2_TIM)
+				*interrupt_mask |= AR5K_INT_TIM;
+			if (sisr2 & AR5K_SISR2_DTIM)
+				*interrupt_mask |= AR5K_INT_DTIM;
+			if (sisr2 & AR5K_SISR2_DTIM_SYNC)
+				*interrupt_mask |= AR5K_INT_DTIM_SYNC;
+			if (sisr2 & AR5K_SISR2_BCN_TIMEOUT)
+				*interrupt_mask |= AR5K_INT_BCN_TIMEOUT;
+			if (sisr2 & AR5K_SISR2_CAB_TIMEOUT)
+				*interrupt_mask |= AR5K_INT_CAB_TIMEOUT;
+		}
+
+		if (data & AR5K_ISR_RXDOPPLER)
+			*interrupt_mask |= AR5K_INT_RX_DOPPLER;
+		if (data & AR5K_ISR_QCBRORN) {
+			*interrupt_mask |= AR5K_INT_QCBRORN;
+			ah->ah_txq_isr |= AR5K_REG_MS(
+					ath5k_hw_reg_read(ah, AR5K_RAC_SISR3),
+					AR5K_SISR3_QCBRORN);
+		}
+		if (data & AR5K_ISR_QCBRURN) {
+			*interrupt_mask |= AR5K_INT_QCBRURN;
+			ah->ah_txq_isr |= AR5K_REG_MS(
+					ath5k_hw_reg_read(ah, AR5K_RAC_SISR3),
+					AR5K_SISR3_QCBRURN);
+		}
+		if (data & AR5K_ISR_QTRIG) {
+			*interrupt_mask |= AR5K_INT_QTRIG;
+			ah->ah_txq_isr |= AR5K_REG_MS(
+					ath5k_hw_reg_read(ah, AR5K_RAC_SISR4),
+					AR5K_SISR4_QTRIG);
+		}
+
+		if (data & AR5K_ISR_TXOK)
+			ah->ah_txq_isr |= AR5K_REG_MS(
+					ath5k_hw_reg_read(ah, AR5K_RAC_SISR0),
+					AR5K_SISR0_QCU_TXOK);
+
+		if (data & AR5K_ISR_TXDESC)
+			ah->ah_txq_isr |= AR5K_REG_MS(
+					ath5k_hw_reg_read(ah, AR5K_RAC_SISR0),
+					AR5K_SISR0_QCU_TXDESC);
+
+		if (data & AR5K_ISR_TXERR)
+			ah->ah_txq_isr |= AR5K_REG_MS(
+					ath5k_hw_reg_read(ah, AR5K_RAC_SISR1),
+					AR5K_SISR1_QCU_TXERR);
+
+		if (data & AR5K_ISR_TXEOL)
+			ah->ah_txq_isr |= AR5K_REG_MS(
+					ath5k_hw_reg_read(ah, AR5K_RAC_SISR1),
+					AR5K_SISR1_QCU_TXEOL);
+
+		if (data & AR5K_ISR_TXURN)
+			ah->ah_txq_isr |= AR5K_REG_MS(
+					ath5k_hw_reg_read(ah, AR5K_RAC_SISR2),
+					AR5K_SISR2_QCU_TXURN);
+	} else {
+		if (data & (AR5K_ISR_SSERR | AR5K_ISR_MCABT |
+			    AR5K_ISR_HIUERR | AR5K_ISR_DPERR))
+			*interrupt_mask |= AR5K_INT_FATAL;
+
+		/*
+		 * XXX: BMISS interrupts may occur after association.
+		 * I found this on 5210 code but it needs testing. If this is
+		 * true we should disable them before assoc and re-enable them
+		 * after a successful assoc + some jiffies.
+			interrupt_mask &= ~AR5K_INT_BMISS;
+		 */
+	}
+
+	return 0;
+}
+
+/**
+ * ath5k_hw_set_imr - Set interrupt mask
+ *
+ * @ah: The &struct ath5k_hw
+ * @new_mask: The new interrupt mask to be set
+ *
+ * Set the interrupt mask in hw to save interrupts. We do that by mapping
+ * ath5k_int bits to hw-specific bits to remove abstraction and writing
+ * Interrupt Mask Register.
+ */
+enum ath5k_int ath5k_hw_set_imr(struct ath5k_hw *ah, enum ath5k_int new_mask)
+{
+	enum ath5k_int old_mask, int_mask;
+
+	old_mask = ah->ah_imr;
+
+	/*
+	 * Disable card interrupts to prevent any race conditions
+	 * (they will be re-enabled afterwards if AR5K_INT GLOBAL
+	 * is set again on the new mask).
+	 */
+	if (old_mask & AR5K_INT_GLOBAL) {
+		ath5k_hw_reg_write(ah, AR5K_IER_DISABLE, AR5K_IER);
+		ath5k_hw_reg_read(ah, AR5K_IER);
+	}
+
+	/*
+	 * Add additional, chipset-dependent interrupt mask flags
+	 * and write them to the IMR (interrupt mask register).
+	 */
+	int_mask = new_mask & AR5K_INT_COMMON;
+
+	if (ah->ah_version != AR5K_AR5210) {
+		/* Preserve per queue TXURN interrupt mask */
+		u32 simr2 = ath5k_hw_reg_read(ah, AR5K_SIMR2)
+				& AR5K_SIMR2_QCU_TXURN;
+
+		if (new_mask & AR5K_INT_FATAL) {
+			int_mask |= AR5K_IMR_HIUERR;
+			simr2 |= (AR5K_SIMR2_MCABT | AR5K_SIMR2_SSERR
+				| AR5K_SIMR2_DPERR);
+		}
+
+		/*Beacon Not Ready*/
+		if (new_mask & AR5K_INT_BNR)
+			int_mask |= AR5K_INT_BNR;
+
+		if (new_mask & AR5K_INT_TIM)
+			int_mask |= AR5K_IMR_TIM;
+
+		if (new_mask & AR5K_INT_TIM)
+			simr2 |= AR5K_SISR2_TIM;
+		if (new_mask & AR5K_INT_DTIM)
+			simr2 |= AR5K_SISR2_DTIM;
+		if (new_mask & AR5K_INT_DTIM_SYNC)
+			simr2 |= AR5K_SISR2_DTIM_SYNC;
+		if (new_mask & AR5K_INT_BCN_TIMEOUT)
+			simr2 |= AR5K_SISR2_BCN_TIMEOUT;
+		if (new_mask & AR5K_INT_CAB_TIMEOUT)
+			simr2 |= AR5K_SISR2_CAB_TIMEOUT;
+
+		if (new_mask & AR5K_INT_RX_DOPPLER)
+			int_mask |= AR5K_IMR_RXDOPPLER;
+
+		/* Note: Per queue interrupt masks
+		 * are set via reset_tx_queue (qcu.c) */
+		ath5k_hw_reg_write(ah, int_mask, AR5K_PIMR);
+		ath5k_hw_reg_write(ah, simr2, AR5K_SIMR2);
+
+	} else {
+		if (new_mask & AR5K_INT_FATAL)
+			int_mask |= (AR5K_IMR_SSERR | AR5K_IMR_MCABT
+				| AR5K_IMR_HIUERR | AR5K_IMR_DPERR);
+
+		ath5k_hw_reg_write(ah, int_mask, AR5K_IMR);
+	}
+
+	/* If RXNOFRM interrupt is masked disable it
+	 * by setting AR5K_RXNOFRM to zero */
+	if (!(new_mask & AR5K_INT_RXNOFRM))
+		ath5k_hw_reg_write(ah, 0, AR5K_RXNOFRM);
+
+	/* Store new interrupt mask */
+	ah->ah_imr = new_mask;
+
+	/* ..re-enable interrupts if AR5K_INT_GLOBAL is set */
+	if (new_mask & AR5K_INT_GLOBAL) {
+		ath5k_hw_reg_write(ah, ah->ah_ier, AR5K_IER);
+		ath5k_hw_reg_read(ah, AR5K_IER);
+	}
+
+	return old_mask;
+}
+

src/drivers/net/ath5k/ath5k_gpio.c

@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
+ * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com>
+ *
+ * Lightly modified for gPXE, July 2009, by Joshua Oreman <oremanj@rwcr.net>.
+ *
+ * Permission to use, copy, modify, and 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.
+ *
+ */
+
+FILE_LICENCE ( MIT );
+
+/****************\
+  GPIO Functions
+\****************/
+
+#include "ath5k.h"
+#include "reg.h"
+#include "base.h"
+
+/*
+ * Set GPIO inputs
+ */
+int ath5k_hw_set_gpio_input(struct ath5k_hw *ah, u32 gpio)
+{
+	if (gpio >= AR5K_NUM_GPIO)
+		return -EINVAL;
+
+	ath5k_hw_reg_write(ah,
+		(ath5k_hw_reg_read(ah, AR5K_GPIOCR) & ~AR5K_GPIOCR_OUT(gpio))
+		| AR5K_GPIOCR_IN(gpio), AR5K_GPIOCR);
+
+	return 0;
+}
+
+/*
+ * Set GPIO outputs
+ */
+int ath5k_hw_set_gpio_output(struct ath5k_hw *ah, u32 gpio)
+{
+	if (gpio >= AR5K_NUM_GPIO)
+		return -EINVAL;
+
+	ath5k_hw_reg_write(ah,
+		(ath5k_hw_reg_read(ah, AR5K_GPIOCR) & ~AR5K_GPIOCR_OUT(gpio))
+		| AR5K_GPIOCR_OUT(gpio), AR5K_GPIOCR);
+
+	return 0;
+}
+
+/*
+ * Get GPIO state
+ */
+u32 ath5k_hw_get_gpio(struct ath5k_hw *ah, u32 gpio)
+{
+	if (gpio >= AR5K_NUM_GPIO)
+		return 0xffffffff;
+
+	/* GPIO input magic */
+	return ((ath5k_hw_reg_read(ah, AR5K_GPIODI) & AR5K_GPIODI_M) >> gpio) &
+		0x1;
+}
+
+/*
+ * Set GPIO state
+ */
+int ath5k_hw_set_gpio(struct ath5k_hw *ah, u32 gpio, u32 val)
+{
+	u32 data;
+
+	if (gpio >= AR5K_NUM_GPIO)
+		return -EINVAL;
+
+	/* GPIO output magic */
+	data = ath5k_hw_reg_read(ah, AR5K_GPIODO);
+
+	data &= ~(1 << gpio);
+	data |= (val & 1) << gpio;
+
+	ath5k_hw_reg_write(ah, data, AR5K_GPIODO);
+
+	return 0;
+}
+
+/*
+ * Initialize the GPIO interrupt (RFKill switch)
+ */
+void ath5k_hw_set_gpio_intr(struct ath5k_hw *ah, unsigned int gpio,
+		u32 interrupt_level)
+{
+	u32 data;
+
+	if (gpio >= AR5K_NUM_GPIO)
+		return;
+
+	/*
+	 * Set the GPIO interrupt
+	 */
+	data = (ath5k_hw_reg_read(ah, AR5K_GPIOCR) &
+		~(AR5K_GPIOCR_INT_SEL(gpio) | AR5K_GPIOCR_INT_SELH |
+		AR5K_GPIOCR_INT_ENA | AR5K_GPIOCR_OUT(gpio))) |
+		(AR5K_GPIOCR_INT_SEL(gpio) | AR5K_GPIOCR_INT_ENA);
+
+	ath5k_hw_reg_write(ah, interrupt_level ? data :
+		(data | AR5K_GPIOCR_INT_SELH), AR5K_GPIOCR);
+
+	ah->ah_imr |= AR5K_IMR_GPIO;
+
+	/* Enable GPIO interrupts */
+	AR5K_REG_ENABLE_BITS(ah, AR5K_PIMR, AR5K_IMR_GPIO);
+}
+

src/drivers/net/ath5k/ath5k_pcu.c

@@ -0,0 +1,534 @@
+/*
+ * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
+ * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com>
+ * Copyright (c) 2007-2008 Matthew W. S. Bell  <mentor@madwifi.org>
+ * Copyright (c) 2007-2008 Luis Rodriguez <mcgrof@winlab.rutgers.edu>
+ * Copyright (c) 2007-2008 Pavel Roskin <proski@gnu.org>
+ * Copyright (c) 2007-2008 Jiri Slaby <jirislaby@gmail.com>
+ *
+ * Lightly modified for gPXE, July 2009, by Joshua Oreman <oremanj@rwcr.net>.
+ *
+ * Permission to use, copy, modify, and 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.
+ *
+ */
+
+FILE_LICENCE ( MIT );
+
+/*********************************\
+* Protocol Control Unit Functions *
+\*********************************/
+
+#include "ath5k.h"
+#include "reg.h"
+#include "base.h"
+
+/*******************\
+* Generic functions *
+\*******************/
+
+/**
+ * ath5k_hw_set_opmode - Set PCU operating mode
+ *
+ * @ah: The &struct ath5k_hw
+ *
+ * Initialize PCU for the various operating modes (AP/STA etc)
+ *
+ * For gPXE we always assume STA mode.
+ */
+int ath5k_hw_set_opmode(struct ath5k_hw *ah)
+{
+	u32 pcu_reg, beacon_reg, low_id, high_id;
+
+
+	/* Preserve rest settings */
+	pcu_reg = ath5k_hw_reg_read(ah, AR5K_STA_ID1) & 0xffff0000;
+	pcu_reg &= ~(AR5K_STA_ID1_ADHOC | AR5K_STA_ID1_AP
+			| AR5K_STA_ID1_KEYSRCH_MODE
+			| (ah->ah_version == AR5K_AR5210 ?
+			(AR5K_STA_ID1_PWR_SV | AR5K_STA_ID1_NO_PSPOLL) : 0));
+
+	beacon_reg = 0;
+
+	pcu_reg |= AR5K_STA_ID1_KEYSRCH_MODE
+		| (ah->ah_version == AR5K_AR5210 ?
+		   AR5K_STA_ID1_PWR_SV : 0);
+
+	/*
+	 * Set PCU registers
+	 */
+	low_id = AR5K_LOW_ID(ah->ah_sta_id);
+	high_id = AR5K_HIGH_ID(ah->ah_sta_id);
+	ath5k_hw_reg_write(ah, low_id, AR5K_STA_ID0);
+	ath5k_hw_reg_write(ah, pcu_reg | high_id, AR5K_STA_ID1);
+
+	/*
+	 * Set Beacon Control Register on 5210
+	 */
+	if (ah->ah_version == AR5K_AR5210)
+		ath5k_hw_reg_write(ah, beacon_reg, AR5K_BCR);
+
+	return 0;
+}
+
+/**
+ * ath5k_hw_set_ack_bitrate - set bitrate for ACKs
+ *
+ * @ah: The &struct ath5k_hw
+ * @high: Flag to determine if we want to use high transmition rate
+ * for ACKs or not
+ *
+ * If high flag is set, we tell hw to use a set of control rates based on
+ * the current transmition rate (check out control_rates array inside reset.c).
+ * If not hw just uses the lowest rate available for the current modulation
+ * scheme being used (1Mbit for CCK and 6Mbits for OFDM).
+ */
+void ath5k_hw_set_ack_bitrate_high(struct ath5k_hw *ah, int high)
+{
+	if (ah->ah_version != AR5K_AR5212)
+		return;
+	else {
+		u32 val = AR5K_STA_ID1_BASE_RATE_11B | AR5K_STA_ID1_ACKCTS_6MB;
+		if (high)
+			AR5K_REG_ENABLE_BITS(ah, AR5K_STA_ID1, val);
+		else
+			AR5K_REG_DISABLE_BITS(ah, AR5K_STA_ID1, val);
+	}
+}
+
+
+/******************\
+* ACK/CTS Timeouts *
+\******************/
+
+/**
+ * ath5k_hw_het_ack_timeout - Get ACK timeout from PCU in usec
+ *
+ * @ah: The &struct ath5k_hw
+ */
+unsigned int ath5k_hw_get_ack_timeout(struct ath5k_hw *ah)
+{
+	return ath5k_hw_clocktoh(AR5K_REG_MS(ath5k_hw_reg_read(ah,
+			AR5K_TIME_OUT), AR5K_TIME_OUT_ACK), ah->ah_turbo);
+}
+
+/**
+ * ath5k_hw_set_ack_timeout - Set ACK timeout on PCU
+ *
+ * @ah: The &struct ath5k_hw
+ * @timeout: Timeout in usec
+ */
+int ath5k_hw_set_ack_timeout(struct ath5k_hw *ah, unsigned int timeout)
+{
+	if (ath5k_hw_clocktoh(AR5K_REG_MS(0xffffffff, AR5K_TIME_OUT_ACK),
+			ah->ah_turbo) <= timeout)
+		return -EINVAL;
+
+	AR5K_REG_WRITE_BITS(ah, AR5K_TIME_OUT, AR5K_TIME_OUT_ACK,
+		ath5k_hw_htoclock(timeout, ah->ah_turbo));
+
+	return 0;
+}
+
+/**
+ * ath5k_hw_get_cts_timeout - Get CTS timeout from PCU in usec
+ *
+ * @ah: The &struct ath5k_hw
+ */
+unsigned int ath5k_hw_get_cts_timeout(struct ath5k_hw *ah)
+{
+	return ath5k_hw_clocktoh(AR5K_REG_MS(ath5k_hw_reg_read(ah,
+			AR5K_TIME_OUT), AR5K_TIME_OUT_CTS), ah->ah_turbo);
+}
+
+/**
+ * ath5k_hw_set_cts_timeout - Set CTS timeout on PCU
+ *
+ * @ah: The &struct ath5k_hw
+ * @timeout: Timeout in usec
+ */
+int ath5k_hw_set_cts_timeout(struct ath5k_hw *ah, unsigned int timeout)
+{
+	if (ath5k_hw_clocktoh(AR5K_REG_MS(0xffffffff, AR5K_TIME_OUT_CTS),
+			ah->ah_turbo) <= timeout)
+		return -EINVAL;
+
+	AR5K_REG_WRITE_BITS(ah, AR5K_TIME_OUT, AR5K_TIME_OUT_CTS,
+			ath5k_hw_htoclock(timeout, ah->ah_turbo));
+
+	return 0;
+}
+
+
+/****************\
+* BSSID handling *
+\****************/
+
+/**
+ * ath5k_hw_get_lladdr - Get station id
+ *
+ * @ah: The &struct ath5k_hw
+ * @mac: The card's mac address
+ *
+ * Initialize ah->ah_sta_id using the mac address provided
+ * (just a memcpy).
+ *
+ * TODO: Remove it once we merge ath5k_softc and ath5k_hw
+ */
+void ath5k_hw_get_lladdr(struct ath5k_hw *ah, u8 *mac)
+{
+	memcpy(mac, ah->ah_sta_id, ETH_ALEN);
+}
+
+/**
+ * ath5k_hw_set_lladdr - Set station id
+ *
+ * @ah: The &struct ath5k_hw
+ * @mac: The card's mac address
+ *
+ * Set station id on hw using the provided mac address
+ */
+int ath5k_hw_set_lladdr(struct ath5k_hw *ah, const u8 *mac)
+{
+	u32 low_id, high_id;
+	u32 pcu_reg;
+
+	/* Set new station ID */
+	memcpy(ah->ah_sta_id, mac, ETH_ALEN);
+
+	pcu_reg = ath5k_hw_reg_read(ah, AR5K_STA_ID1) & 0xffff0000;
+
+	low_id = AR5K_LOW_ID(mac);
+	high_id = AR5K_HIGH_ID(mac);
+
+	ath5k_hw_reg_write(ah, low_id, AR5K_STA_ID0);
+	ath5k_hw_reg_write(ah, pcu_reg | high_id, AR5K_STA_ID1);
+
+	return 0;
+}
+
+/**
+ * ath5k_hw_set_associd - Set BSSID for association
+ *
+ * @ah: The &struct ath5k_hw
+ * @bssid: BSSID
+ * @assoc_id: Assoc id
+ *
+ * Sets the BSSID which trigers the "SME Join" operation
+ */
+void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id)
+{
+	u32 low_id, high_id;
+
+	/*
+	 * Set simple BSSID mask on 5212
+	 */
+	if (ah->ah_version == AR5K_AR5212) {
+		ath5k_hw_reg_write(ah, AR5K_LOW_ID(ah->ah_bssid_mask),
+							AR5K_BSS_IDM0);
+		ath5k_hw_reg_write(ah, AR5K_HIGH_ID(ah->ah_bssid_mask),
+							AR5K_BSS_IDM1);
+	}
+
+	/*
+	 * Set BSSID which triggers the "SME Join" operation
+	 */
+	low_id = AR5K_LOW_ID(bssid);
+	high_id = AR5K_HIGH_ID(bssid);
+	ath5k_hw_reg_write(ah, low_id, AR5K_BSS_ID0);
+	ath5k_hw_reg_write(ah, high_id | ((assoc_id & 0x3fff) <<
+				AR5K_BSS_ID1_AID_S), AR5K_BSS_ID1);
+}
+
+/**
+ * ath5k_hw_set_bssid_mask - filter out bssids we listen
+ *
+ * @ah: the &struct ath5k_hw
+ * @mask: the bssid_mask, a u8 array of size ETH_ALEN
+ *
+ * BSSID masking is a method used by AR5212 and newer hardware to inform PCU
+ * which bits of the interface's MAC address should be looked at when trying
+ * to decide which packets to ACK. In station mode and AP mode with a single
+ * BSS every bit matters since we lock to only one BSS. In AP mode with
+ * multiple BSSes (virtual interfaces) not every bit matters because hw must
+ * accept frames for all BSSes and so we tweak some bits of our mac address
+ * in order to have multiple BSSes.
+ *
+ * NOTE: This is a simple filter and does *not* filter out all
+ * relevant frames. Some frames that are not for us might get ACKed from us
+ * by PCU because they just match the mask.
+ *
+ * When handling multiple BSSes you can get the BSSID mask by computing the
+ * set of  ~ ( MAC XOR BSSID ) for all bssids we handle.
+ *
+ * When you do this you are essentially computing the common bits of all your
+ * BSSes. Later it is assumed the harware will "and" (&) the BSSID mask with
+ * the MAC address to obtain the relevant bits and compare the result with
+ * (frame's BSSID & mask) to see if they match.
+ */
+/*
+ * Simple example: on your card you have have two BSSes you have created with
+ * BSSID-01 and BSSID-02. Lets assume BSSID-01 will not use the MAC address.
+ * There is another BSSID-03 but you are not part of it. For simplicity's sake,
+ * assuming only 4 bits for a mac address and for BSSIDs you can then have:
+ *
+ *                  \
+ * MAC:                0001 |
+ * BSSID-01:   0100 | --> Belongs to us
+ * BSSID-02:   1001 |
+ *                  /
+ * -------------------
+ * BSSID-03:   0110  | --> External
+ * -------------------
+ *
+ * Our bssid_mask would then be:
+ *
+ *             On loop iteration for BSSID-01:
+ *             ~(0001 ^ 0100)  -> ~(0101)
+ *                             ->   1010
+ *             bssid_mask      =    1010
+ *
+ *             On loop iteration for BSSID-02:
+ *             bssid_mask &= ~(0001   ^   1001)
+ *             bssid_mask =   (1010)  & ~(0001 ^ 1001)
+ *             bssid_mask =   (1010)  & ~(1001)
+ *             bssid_mask =   (1010)  &  (0110)
+ *             bssid_mask =   0010
+ *
+ * A bssid_mask of 0010 means "only pay attention to the second least
+ * significant bit". This is because its the only bit common
+ * amongst the MAC and all BSSIDs we support. To findout what the real
+ * common bit is we can simply "&" the bssid_mask now with any BSSID we have
+ * or our MAC address (we assume the hardware uses the MAC address).
+ *
+ * Now, suppose there's an incoming frame for BSSID-03:
+ *
+ * IFRAME-01:  0110
+ *
+ * An easy eye-inspeciton of this already should tell you that this frame
+ * will not pass our check. This is beacuse the bssid_mask tells the
+ * hardware to only look at the second least significant bit and the
+ * common bit amongst the MAC and BSSIDs is 0, this frame has the 2nd LSB
+ * as 1, which does not match 0.
+ *
+ * So with IFRAME-01 we *assume* the hardware will do:
+ *
+ *     allow = (IFRAME-01 & bssid_mask) == (bssid_mask & MAC) ? 1 : 0;
+ *  --> allow = (0110 & 0010) == (0010 & 0001) ? 1 : 0;
+ *  --> allow = (0010) == 0000 ? 1 : 0;
+ *  --> allow = 0
+ *
+ *  Lets now test a frame that should work:
+ *
+ * IFRAME-02:  0001 (we should allow)
+ *
+ *     allow = (0001 & 1010) == 1010
+ *
+ *     allow = (IFRAME-02 & bssid_mask) == (bssid_mask & MAC) ? 1 : 0;
+ *  --> allow = (0001 & 0010) ==  (0010 & 0001) ? 1 :0;
+ *  --> allow = (0010) == (0010)
+ *  --> allow = 1
+ *
+ * Other examples:
+ *
+ * IFRAME-03:  0100 --> allowed
+ * IFRAME-04:  1001 --> allowed
+ * IFRAME-05:  1101 --> allowed but its not for us!!!
+ *
+ */
+int ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask)
+{
+	u32 low_id, high_id;
+
+	/* Cache bssid mask so that we can restore it
+	 * on reset */
+	memcpy(ah->ah_bssid_mask, mask, ETH_ALEN);
+	if (ah->ah_version == AR5K_AR5212) {
+		low_id = AR5K_LOW_ID(mask);
+		high_id = AR5K_HIGH_ID(mask);
+
+		ath5k_hw_reg_write(ah, low_id, AR5K_BSS_IDM0);
+		ath5k_hw_reg_write(ah, high_id, AR5K_BSS_IDM1);
+
+		return 0;
+	}
+
+	return -EIO;
+}
+
+
+/************\
+* RX Control *
+\************/
+
+/**
+ * ath5k_hw_start_rx_pcu - Start RX engine
+ *
+ * @ah: The &struct ath5k_hw
+ *
+ * Starts RX engine on PCU so that hw can process RXed frames
+ * (ACK etc).
+ *
+ * NOTE: RX DMA should be already enabled using ath5k_hw_start_rx_dma
+ * TODO: Init ANI here
+ */
+void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah)
+{
+	AR5K_REG_DISABLE_BITS(ah, AR5K_DIAG_SW, AR5K_DIAG_SW_DIS_RX);
+}
+
+/**
+ * at5k_hw_stop_rx_pcu - Stop RX engine
+ *
+ * @ah: The &struct ath5k_hw
+ *
+ * Stops RX engine on PCU
+ *
+ * TODO: Detach ANI here
+ */
+void ath5k_hw_stop_rx_pcu(struct ath5k_hw *ah)
+{
+	AR5K_REG_ENABLE_BITS(ah, AR5K_DIAG_SW, AR5K_DIAG_SW_DIS_RX);
+}
+
+/*
+ * Set multicast filter
+ */
+void ath5k_hw_set_mcast_filter(struct ath5k_hw *ah, u32 filter0, u32 filter1)
+{
+	/* Set the multicat filter */
+	ath5k_hw_reg_write(ah, filter0, AR5K_MCAST_FILTER0);
+	ath5k_hw_reg_write(ah, filter1, AR5K_MCAST_FILTER1);
+}
+
+/**
+ * ath5k_hw_get_rx_filter - Get current rx filter
+ *
+ * @ah: The &struct ath5k_hw
+ *
+ * Returns the RX filter by reading rx filter and
+ * phy error filter registers. RX filter is used
+ * to set the allowed frame types that PCU will accept
+ * and pass to the driver. For a list of frame types
+ * check out reg.h.
+ */
+u32 ath5k_hw_get_rx_filter(struct ath5k_hw *ah)
+{
+	u32 data, filter = 0;
+
+	filter = ath5k_hw_reg_read(ah, AR5K_RX_FILTER);
+
+	/*Radar detection for 5212*/
+	if (ah->ah_version == AR5K_AR5212) {
+		data = ath5k_hw_reg_read(ah, AR5K_PHY_ERR_FIL);
+
+		if (data & AR5K_PHY_ERR_FIL_RADAR)
+			filter |= AR5K_RX_FILTER_RADARERR;
+		if (data & (AR5K_PHY_ERR_FIL_OFDM | AR5K_PHY_ERR_FIL_CCK))
+			filter |= AR5K_RX_FILTER_PHYERR;
+	}
+
+	return filter;
+}
+
+/**
+ * ath5k_hw_set_rx_filter - Set rx filter
+ *
+ * @ah: The &struct ath5k_hw
+ * @filter: RX filter mask (see reg.h)
+ *
+ * Sets RX filter register and also handles PHY error filter
+ * register on 5212 and newer chips so that we have proper PHY
+ * error reporting.
+ */
+void ath5k_hw_set_rx_filter(struct ath5k_hw *ah, u32 filter)
+{
+	u32 data = 0;
+
+	/* Set PHY error filter register on 5212*/
+	if (ah->ah_version == AR5K_AR5212) {
+		if (filter & AR5K_RX_FILTER_RADARERR)
+			data |= AR5K_PHY_ERR_FIL_RADAR;
+		if (filter & AR5K_RX_FILTER_PHYERR)
+			data |= AR5K_PHY_ERR_FIL_OFDM | AR5K_PHY_ERR_FIL_CCK;
+	}
+
+	/*
+	 * The AR5210 uses promiscous mode to detect radar activity
+	 */
+	if (ah->ah_version == AR5K_AR5210 &&
+			(filter & AR5K_RX_FILTER_RADARERR)) {
+		filter &= ~AR5K_RX_FILTER_RADARERR;
+		filter |= AR5K_RX_FILTER_PROM;
+	}
+
+	/*Zero length DMA (phy error reporting) */
+	if (data)
+		AR5K_REG_ENABLE_BITS(ah, AR5K_RXCFG, AR5K_RXCFG_ZLFDMA);
+	else
+		AR5K_REG_DISABLE_BITS(ah, AR5K_RXCFG, AR5K_RXCFG_ZLFDMA);
+
+	/*Write RX Filter register*/
+	ath5k_hw_reg_write(ah, filter & 0xff, AR5K_RX_FILTER);
+
+	/*Write PHY error filter register on 5212*/
+	if (ah->ah_version == AR5K_AR5212)
+		ath5k_hw_reg_write(ah, data, AR5K_PHY_ERR_FIL);
+
+}
+
+/*********************\
+* Key table functions *
+\*********************/
+
+/*
+ * Reset a key entry on the table
+ */
+int ath5k_hw_reset_key(struct ath5k_hw *ah, u16 entry)
+{
+	unsigned int i, type;
+	u16 micentry = entry + AR5K_KEYTABLE_MIC_OFFSET;
+
+	type = ath5k_hw_reg_read(ah, AR5K_KEYTABLE_TYPE(entry));
+
+	for (i = 0; i < AR5K_KEYCACHE_SIZE; i++)
+		ath5k_hw_reg_write(ah, 0, AR5K_KEYTABLE_OFF(entry, i));
+
+	/* Reset associated MIC entry if TKIP
+	 * is enabled located at offset (entry + 64) */
+	if (type == AR5K_KEYTABLE_TYPE_TKIP) {
+		for (i = 0; i < AR5K_KEYCACHE_SIZE / 2 ; i++)
+			ath5k_hw_reg_write(ah, 0,
+				AR5K_KEYTABLE_OFF(micentry, i));
+	}
+
+	/*
+	 * Set NULL encryption on AR5212+
+	 *
+	 * Note: AR5K_KEYTABLE_TYPE -> AR5K_KEYTABLE_OFF(entry, 5)
+	 *       AR5K_KEYTABLE_TYPE_NULL -> 0x00000007
+	 *
+	 * Note2: Windows driver (ndiswrapper) sets this to
+	 *        0x00000714 instead of 0x00000007
+	 */
+	if (ah->ah_version > AR5K_AR5211) {
+		ath5k_hw_reg_write(ah, AR5K_KEYTABLE_TYPE_NULL,
+				AR5K_KEYTABLE_TYPE(entry));
+
+		if (type == AR5K_KEYTABLE_TYPE_TKIP) {
+			ath5k_hw_reg_write(ah, AR5K_KEYTABLE_TYPE_NULL,
+				AR5K_KEYTABLE_TYPE(micentry));
+		}
+	}
+
+	return 0;
+}

src/drivers/net/ath5k/ath5k_qcu.c

@@ -0,0 +1,394 @@
+/*
+ * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
+ * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com>
+ *
+ * Lightly modified for gPXE, July 2009, by Joshua Oreman <oremanj@rwcr.net>.
+ *
+ * Permission to use, copy, modify, and 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.
+ *
+ */
+
+FILE_LICENCE ( MIT );
+
+/********************************************\
+Queue Control Unit, DFS Control Unit Functions
+\********************************************/
+
+#include "ath5k.h"
+#include "reg.h"
+#include "base.h"
+
+/*
+ * Set properties for a transmit queue
+ */
+int ath5k_hw_set_tx_queueprops(struct ath5k_hw *ah,
+				const struct ath5k_txq_info *queue_info)
+{
+	if (ah->ah_txq.tqi_type == AR5K_TX_QUEUE_INACTIVE)
+		return -EIO;
+
+	memcpy(&ah->ah_txq, queue_info, sizeof(struct ath5k_txq_info));
+
+	/*XXX: Is this supported on 5210 ?*/
+	if ((queue_info->tqi_type == AR5K_TX_QUEUE_DATA &&
+			((queue_info->tqi_subtype == AR5K_WME_AC_VI) ||
+			(queue_info->tqi_subtype == AR5K_WME_AC_VO))) ||
+			queue_info->tqi_type == AR5K_TX_QUEUE_UAPSD)
+		ah->ah_txq.tqi_flags |= AR5K_TXQ_FLAG_POST_FR_BKOFF_DIS;
+
+	return 0;
+}
+
+/*
+ * Initialize a transmit queue
+ */
+int ath5k_hw_setup_tx_queue(struct ath5k_hw *ah, enum ath5k_tx_queue queue_type,
+		struct ath5k_txq_info *queue_info)
+{
+	unsigned int queue;
+	int ret;
+
+	/* We only use one queue */
+	queue = 0;
+
+	/*
+	 * Setup internal queue structure
+	 */
+	memset(&ah->ah_txq, 0, sizeof(struct ath5k_txq_info));
+	ah->ah_txq.tqi_type = queue_type;
+
+	if (queue_info != NULL) {
+		queue_info->tqi_type = queue_type;
+		ret = ath5k_hw_set_tx_queueprops(ah, queue_info);
+		if (ret)
+			return ret;
+	}
+
+	/*
+	 * We use ah_txq_status to hold a temp value for
+	 * the Secondary interrupt mask registers on 5211+
+	 * check out ath5k_hw_reset_tx_queue
+	 */
+	AR5K_Q_ENABLE_BITS(ah->ah_txq_status, 0);
+
+	return 0;
+}
+
+/*
+ * Set a transmit queue inactive
+ */
+void ath5k_hw_release_tx_queue(struct ath5k_hw *ah)
+{
+	/* This queue will be skipped in further operations */
+	ah->ah_txq.tqi_type = AR5K_TX_QUEUE_INACTIVE;
+	/*For SIMR setup*/
+	AR5K_Q_DISABLE_BITS(ah->ah_txq_status, 0);
+}
+
+/*
+ * Set DFS properties for a transmit queue on DCU
+ */
+int ath5k_hw_reset_tx_queue(struct ath5k_hw *ah)
+{
+	u32 cw_min, cw_max, retry_lg, retry_sh;
+	struct ath5k_txq_info *tq = &ah->ah_txq;
+	const int queue = 0;
+
+	tq = &ah->ah_txq;
+
+	if (tq->tqi_type == AR5K_TX_QUEUE_INACTIVE)
+		return 0;
+
+	if (ah->ah_version == AR5K_AR5210) {
+		/* Only handle data queues, others will be ignored */
+		if (tq->tqi_type != AR5K_TX_QUEUE_DATA)
+			return 0;
+
+		/* Set Slot time */
+		ath5k_hw_reg_write(ah, ah->ah_turbo ?
+			AR5K_INIT_SLOT_TIME_TURBO : AR5K_INIT_SLOT_TIME,
+			AR5K_SLOT_TIME);
+		/* Set ACK_CTS timeout */
+		ath5k_hw_reg_write(ah, ah->ah_turbo ?
+			AR5K_INIT_ACK_CTS_TIMEOUT_TURBO :
+			AR5K_INIT_ACK_CTS_TIMEOUT, AR5K_SLOT_TIME);
+		/* Set Transmit Latency */
+		ath5k_hw_reg_write(ah, ah->ah_turbo ?
+			AR5K_INIT_TRANSMIT_LATENCY_TURBO :
+			AR5K_INIT_TRANSMIT_LATENCY, AR5K_USEC_5210);
+
+		/* Set IFS0 */
+		if (ah->ah_turbo) {
+			 ath5k_hw_reg_write(ah, ((AR5K_INIT_SIFS_TURBO +
+				(ah->ah_aifs + tq->tqi_aifs) *
+				AR5K_INIT_SLOT_TIME_TURBO) <<
+				AR5K_IFS0_DIFS_S) | AR5K_INIT_SIFS_TURBO,
+				AR5K_IFS0);
+		} else {
+			ath5k_hw_reg_write(ah, ((AR5K_INIT_SIFS +
+				(ah->ah_aifs + tq->tqi_aifs) *
+				AR5K_INIT_SLOT_TIME) << AR5K_IFS0_DIFS_S) |
+				AR5K_INIT_SIFS, AR5K_IFS0);
+		}
+
+		/* Set IFS1 */
+		ath5k_hw_reg_write(ah, ah->ah_turbo ?
+			AR5K_INIT_PROTO_TIME_CNTRL_TURBO :
+			AR5K_INIT_PROTO_TIME_CNTRL, AR5K_IFS1);
+		/* Set AR5K_PHY_SETTLING */
+		ath5k_hw_reg_write(ah, ah->ah_turbo ?
+			(ath5k_hw_reg_read(ah, AR5K_PHY_SETTLING) & ~0x7F)
+			| 0x38 :
+			(ath5k_hw_reg_read(ah, AR5K_PHY_SETTLING) & ~0x7F)
+			| 0x1C,
+			AR5K_PHY_SETTLING);
+		/* Set Frame Control Register */
+		ath5k_hw_reg_write(ah, ah->ah_turbo ?
+			(AR5K_PHY_FRAME_CTL_INI | AR5K_PHY_TURBO_MODE |
+			AR5K_PHY_TURBO_SHORT | 0x2020) :
+			(AR5K_PHY_FRAME_CTL_INI | 0x1020),
+			AR5K_PHY_FRAME_CTL_5210);
+	}
+
+	/*
+	 * Calculate cwmin/max by channel mode
+	 */
+	cw_min = ah->ah_cw_min = AR5K_TUNE_CWMIN;
+	cw_max = ah->ah_cw_max = AR5K_TUNE_CWMAX;
+	ah->ah_aifs = AR5K_TUNE_AIFS;
+	/*XR is only supported on 5212*/
+	if (IS_CHAN_XR(ah->ah_current_channel) &&
+			ah->ah_version == AR5K_AR5212) {
+		cw_min = ah->ah_cw_min = AR5K_TUNE_CWMIN_XR;
+		cw_max = ah->ah_cw_max = AR5K_TUNE_CWMAX_XR;
+		ah->ah_aifs = AR5K_TUNE_AIFS_XR;
+	/*B mode is not supported on 5210*/
+	} else if (IS_CHAN_B(ah->ah_current_channel) &&
+			ah->ah_version != AR5K_AR5210) {
+		cw_min = ah->ah_cw_min = AR5K_TUNE_CWMIN_11B;
+		cw_max = ah->ah_cw_max = AR5K_TUNE_CWMAX_11B;
+		ah->ah_aifs = AR5K_TUNE_AIFS_11B;
+	}
+
+	cw_min = 1;
+	while (cw_min < ah->ah_cw_min)
+		cw_min = (cw_min << 1) | 1;
+
+	cw_min = tq->tqi_cw_min < 0 ? (cw_min >> (-tq->tqi_cw_min)) :
+		((cw_min << tq->tqi_cw_min) + (1 << tq->tqi_cw_min) - 1);
+	cw_max = tq->tqi_cw_max < 0 ? (cw_max >> (-tq->tqi_cw_max)) :
+		((cw_max << tq->tqi_cw_max) + (1 << tq->tqi_cw_max) - 1);
+
+	/*
+	 * Calculate and set retry limits
+	 */
+	if (ah->ah_software_retry) {
+		/* XXX Need to test this */
+		retry_lg = ah->ah_limit_tx_retries;
+		retry_sh = retry_lg = retry_lg > AR5K_DCU_RETRY_LMT_SH_RETRY ?
+			AR5K_DCU_RETRY_LMT_SH_RETRY : retry_lg;
+	} else {
+		retry_lg = AR5K_INIT_LG_RETRY;
+		retry_sh = AR5K_INIT_SH_RETRY;
+	}
+
+	/*No QCU/DCU [5210]*/
+	if (ah->ah_version == AR5K_AR5210) {
+		ath5k_hw_reg_write(ah,
+			(cw_min << AR5K_NODCU_RETRY_LMT_CW_MIN_S)
+			| AR5K_REG_SM(AR5K_INIT_SLG_RETRY,
+				AR5K_NODCU_RETRY_LMT_SLG_RETRY)
+			| AR5K_REG_SM(AR5K_INIT_SSH_RETRY,
+				AR5K_NODCU_RETRY_LMT_SSH_RETRY)
+			| AR5K_REG_SM(retry_lg, AR5K_NODCU_RETRY_LMT_LG_RETRY)
+			| AR5K_REG_SM(retry_sh, AR5K_NODCU_RETRY_LMT_SH_RETRY),
+			AR5K_NODCU_RETRY_LMT);
+	} else {
+		/*QCU/DCU [5211+]*/
+		ath5k_hw_reg_write(ah,
+			AR5K_REG_SM(AR5K_INIT_SLG_RETRY,
+				AR5K_DCU_RETRY_LMT_SLG_RETRY) |
+			AR5K_REG_SM(AR5K_INIT_SSH_RETRY,
+				AR5K_DCU_RETRY_LMT_SSH_RETRY) |
+			AR5K_REG_SM(retry_lg, AR5K_DCU_RETRY_LMT_LG_RETRY) |
+			AR5K_REG_SM(retry_sh, AR5K_DCU_RETRY_LMT_SH_RETRY),
+			AR5K_QUEUE_DFS_RETRY_LIMIT(queue));
+
+	/*===Rest is also for QCU/DCU only [5211+]===*/
+
+		/*
+		 * Set initial content window (cw_min/cw_max)
+		 * and arbitrated interframe space (aifs)...
+		 */
+		ath5k_hw_reg_write(ah,
+			AR5K_REG_SM(cw_min, AR5K_DCU_LCL_IFS_CW_MIN) |
+			AR5K_REG_SM(cw_max, AR5K_DCU_LCL_IFS_CW_MAX) |
+			AR5K_REG_SM(ah->ah_aifs + tq->tqi_aifs,
+				AR5K_DCU_LCL_IFS_AIFS),
+			AR5K_QUEUE_DFS_LOCAL_IFS(queue));
+
+		/*
+		 * Set misc registers
+		 */
+		/* Enable DCU early termination for this queue */
+		AR5K_REG_ENABLE_BITS(ah, AR5K_QUEUE_MISC(queue),
+					AR5K_QCU_MISC_DCU_EARLY);
+
+		/* Enable DCU to wait for next fragment from QCU */
+		AR5K_REG_ENABLE_BITS(ah, AR5K_QUEUE_DFS_MISC(queue),
+					AR5K_DCU_MISC_FRAG_WAIT);
+
+		/* On Maui and Spirit use the global seqnum on DCU */
+		if (ah->ah_mac_version < AR5K_SREV_AR5211)
+			AR5K_REG_ENABLE_BITS(ah, AR5K_QUEUE_DFS_MISC(queue),
+						AR5K_DCU_MISC_SEQNUM_CTL);
+
+		if (tq->tqi_cbr_period) {
+			ath5k_hw_reg_write(ah, AR5K_REG_SM(tq->tqi_cbr_period,
+				AR5K_QCU_CBRCFG_INTVAL) |
+				AR5K_REG_SM(tq->tqi_cbr_overflow_limit,
+				AR5K_QCU_CBRCFG_ORN_THRES),
+				AR5K_QUEUE_CBRCFG(queue));
+			AR5K_REG_ENABLE_BITS(ah, AR5K_QUEUE_MISC(queue),
+				AR5K_QCU_MISC_FRSHED_CBR);
+			if (tq->tqi_cbr_overflow_limit)
+				AR5K_REG_ENABLE_BITS(ah,
+					AR5K_QUEUE_MISC(queue),
+					AR5K_QCU_MISC_CBR_THRES_ENABLE);
+		}
+
+		if (tq->tqi_ready_time &&
+		(tq->tqi_type != AR5K_TX_QUEUE_ID_CAB))
+			ath5k_hw_reg_write(ah, AR5K_REG_SM(tq->tqi_ready_time,
+				AR5K_QCU_RDYTIMECFG_INTVAL) |
+				AR5K_QCU_RDYTIMECFG_ENABLE,
+				AR5K_QUEUE_RDYTIMECFG(queue));
+
+		if (tq->tqi_burst_time) {
+			ath5k_hw_reg_write(ah, AR5K_REG_SM(tq->tqi_burst_time,
+				AR5K_DCU_CHAN_TIME_DUR) |
+				AR5K_DCU_CHAN_TIME_ENABLE,
+				AR5K_QUEUE_DFS_CHANNEL_TIME(queue));
+
+			if (tq->tqi_flags
+			& AR5K_TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE)
+				AR5K_REG_ENABLE_BITS(ah,
+					AR5K_QUEUE_MISC(queue),
+					AR5K_QCU_MISC_RDY_VEOL_POLICY);
+		}
+
+		if (tq->tqi_flags & AR5K_TXQ_FLAG_BACKOFF_DISABLE)
+			ath5k_hw_reg_write(ah, AR5K_DCU_MISC_POST_FR_BKOFF_DIS,
+				AR5K_QUEUE_DFS_MISC(queue));
+
+		if (tq->tqi_flags & AR5K_TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE)
+			ath5k_hw_reg_write(ah, AR5K_DCU_MISC_BACKOFF_FRAG,
+				AR5K_QUEUE_DFS_MISC(queue));
+
+		/* TODO: Handle frame compression */
+
+		/*
+		 * Enable interrupts for this tx queue
+		 * in the secondary interrupt mask registers
+		 */
+		if (tq->tqi_flags & AR5K_TXQ_FLAG_TXOKINT_ENABLE)
+			AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_txok, queue);
+
+		if (tq->tqi_flags & AR5K_TXQ_FLAG_TXERRINT_ENABLE)
+			AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_txerr, queue);
+
+		if (tq->tqi_flags & AR5K_TXQ_FLAG_TXURNINT_ENABLE)
+			AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_txurn, queue);
+
+		if (tq->tqi_flags & AR5K_TXQ_FLAG_TXDESCINT_ENABLE)
+			AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_txdesc, queue);
+
+		if (tq->tqi_flags & AR5K_TXQ_FLAG_TXEOLINT_ENABLE)
+			AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_txeol, queue);
+
+		if (tq->tqi_flags & AR5K_TXQ_FLAG_CBRORNINT_ENABLE)
+			AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_cbrorn, queue);
+
+		if (tq->tqi_flags & AR5K_TXQ_FLAG_CBRURNINT_ENABLE)
+			AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_cbrurn, queue);
+
+		if (tq->tqi_flags & AR5K_TXQ_FLAG_QTRIGINT_ENABLE)
+			AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_qtrig, queue);
+
+		if (tq->tqi_flags & AR5K_TXQ_FLAG_TXNOFRMINT_ENABLE)
+			AR5K_Q_ENABLE_BITS(ah->ah_txq_imr_nofrm, queue);
+
+		/* Update secondary interrupt mask registers */
+
+		/* Filter out inactive queues */
+		ah->ah_txq_imr_txok &= ah->ah_txq_status;
+		ah->ah_txq_imr_txerr &= ah->ah_txq_status;
+		ah->ah_txq_imr_txurn &= ah->ah_txq_status;
+		ah->ah_txq_imr_txdesc &= ah->ah_txq_status;
+		ah->ah_txq_imr_txeol &= ah->ah_txq_status;
+		ah->ah_txq_imr_cbrorn &= ah->ah_txq_status;
+		ah->ah_txq_imr_cbrurn &= ah->ah_txq_status;
+		ah->ah_txq_imr_qtrig &= ah->ah_txq_status;
+		ah->ah_txq_imr_nofrm &= ah->ah_txq_status;
+
+		ath5k_hw_reg_write(ah, AR5K_REG_SM(ah->ah_txq_imr_txok,
+			AR5K_SIMR0_QCU_TXOK) |
+			AR5K_REG_SM(ah->ah_txq_imr_txdesc,
+			AR5K_SIMR0_QCU_TXDESC), AR5K_SIMR0);
+		ath5k_hw_reg_write(ah, AR5K_REG_SM(ah->ah_txq_imr_txerr,
+			AR5K_SIMR1_QCU_TXERR) |
+			AR5K_REG_SM(ah->ah_txq_imr_txeol,
+			AR5K_SIMR1_QCU_TXEOL), AR5K_SIMR1);
+		/* Update simr2 but don't overwrite rest simr2 settings */
+		AR5K_REG_DISABLE_BITS(ah, AR5K_SIMR2, AR5K_SIMR2_QCU_TXURN);
+		AR5K_REG_ENABLE_BITS(ah, AR5K_SIMR2,
+			AR5K_REG_SM(ah->ah_txq_imr_txurn,
+			AR5K_SIMR2_QCU_TXURN));
+		ath5k_hw_reg_write(ah, AR5K_REG_SM(ah->ah_txq_imr_cbrorn,
+			AR5K_SIMR3_QCBRORN) |
+			AR5K_REG_SM(ah->ah_txq_imr_cbrurn,
+			AR5K_SIMR3_QCBRURN), AR5K_SIMR3);
+		ath5k_hw_reg_write(ah, AR5K_REG_SM(ah->ah_txq_imr_qtrig,
+			AR5K_SIMR4_QTRIG), AR5K_SIMR4);
+		/* Set TXNOFRM_QCU for the queues with TXNOFRM enabled */
+		ath5k_hw_reg_write(ah, AR5K_REG_SM(ah->ah_txq_imr_nofrm,
+			AR5K_TXNOFRM_QCU), AR5K_TXNOFRM);
+		/* No queue has TXNOFRM enabled, disable the interrupt
+		 * by setting AR5K_TXNOFRM to zero */
+		if (ah->ah_txq_imr_nofrm == 0)
+			ath5k_hw_reg_write(ah, 0, AR5K_TXNOFRM);
+
+		/* Set QCU mask for this DCU to save power */
+		AR5K_REG_WRITE_Q(ah, AR5K_QUEUE_QCUMASK(queue), queue);
+	}
+
+	return 0;
+}
+
+/*
+ * Set slot time on DCU
+ */
+int ath5k_hw_set_slot_time(struct ath5k_hw *ah, unsigned int slot_time)
+{
+	if (slot_time < AR5K_SLOT_TIME_9 || slot_time > AR5K_SLOT_TIME_MAX)
+		return -EINVAL;
+
+	if (ah->ah_version == AR5K_AR5210)
+		ath5k_hw_reg_write(ah, ath5k_hw_htoclock(slot_time,
+				ah->ah_turbo), AR5K_SLOT_TIME);
+	else
+		ath5k_hw_reg_write(ah, slot_time, AR5K_DCU_GBL_IFS_SLOT);
+
+	return 0;
+}
+

src/drivers/net/ath5k/base.h

@@ -0,0 +1,140 @@
+/*-
+ * Copyright (c) 2002-2007 Sam Leffler, Errno Consulting
+ * All rights reserved.
+ *
+ * Modified for gPXE, July 2009, by Joshua Oreman <oremanj@rwcr.net>
+ * Original from Linux kernel 2.6.30.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
+ *    redistribution must be conditioned upon including a substantially
+ *    similar Disclaimer requirement for further binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ */
+
+/*
+ * Defintions for the Atheros Wireless LAN controller driver.
+ */
+#ifndef _DEV_ATH_ATHVAR_H
+#define _DEV_ATH_ATHVAR_H
+
+FILE_LICENCE ( BSD3 );
+
+#include "ath5k.h"
+#include <gpxe/iobuf.h>
+
+#define	ATH_RXBUF	16		/* number of RX buffers */
+#define	ATH_TXBUF	16		/* number of TX buffers */
+
+struct ath5k_buf {
+	struct list_head	list;
+	unsigned int		flags;	/* rx descriptor flags */
+	struct ath5k_desc	*desc;	/* virtual addr of desc */
+	u32			daddr;	/* physical addr of desc */
+	struct io_buffer	*iob;	/* I/O buffer for buf */
+	u32			iobaddr;/* physical addr of iob data */
+};
+
+/*
+ * Data transmit queue state.  One of these exists for each
+ * hardware transmit queue.  Packets sent to us from above
+ * are assigned to queues based on their priority.  Not all
+ * devices support a complete set of hardware transmit queues.
+ * For those devices the array sc_ac2q will map multiple
+ * priorities to fewer hardware queues (typically all to one
+ * hardware queue).
+ */
+struct ath5k_txq {
+	unsigned int		qnum;	/* hardware q number */
+	u32			*link;	/* link ptr in last TX desc */
+	struct list_head	q;	/* transmit queue */
+	int			setup;
+};
+
+#if CHAN_DEBUG
+#define ATH_CHAN_MAX	(26+26+26+200+200)
+#else
+#define ATH_CHAN_MAX	(14+14+14+252+20)
+#endif
+
+/* Software Carrier, keeps track of the driver state
+ * associated with an instance of a device */
+struct ath5k_softc {
+	struct pci_device	*pdev;		/* for dma mapping */
+	void			*iobase;	/* address of the device */
+	struct net80211_device	*dev;		/* IEEE 802.11 common */
+	struct ath5k_hw		*ah;		/* Atheros HW */
+	struct net80211_hw_info	*hwinfo;
+	int			curband;
+	int			irq_ena; 	/* interrupts enabled */
+
+	struct ath5k_buf	*bufptr;	/* allocated buffer ptr */
+	struct ath5k_desc	*desc;		/* TX/RX descriptors */
+	u32			desc_daddr;	/* DMA (physical) address */
+	size_t			desc_len;	/* size of TX/RX descriptors */
+	u16			cachelsz;	/* cache line size */
+
+	int			status;
+#define ATH_STAT_INVALID	0x01		/* disable hardware accesses */
+#define ATH_STAT_MRRETRY	0x02		/* multi-rate retry support */
+#define ATH_STAT_PROMISC	0x04
+#define ATH_STAT_LEDSOFT	0x08		/* enable LED gpio status */
+#define ATH_STAT_STARTED	0x10		/* opened & irqs enabled */
+
+	unsigned int		filter_flags;	/* HW flags, AR5K_RX_FILTER_* */
+	unsigned int		curmode;	/* current phy mode */
+	struct net80211_channel	*curchan;	/* current h/w channel */
+
+	enum ath5k_int		imask;		/* interrupt mask copy */
+
+	u8			bssidmask[ETH_ALEN];
+
+	unsigned int		rxbufsize;	/* rx size based on mtu */
+	struct list_head	rxbuf;		/* receive buffer */
+	u32			*rxlink;	/* link ptr in last RX desc */
+
+	struct list_head	txbuf;		/* transmit buffer */
+	unsigned int		txbuf_len;	/* buf count in txbuf list */
+	struct ath5k_txq	txq;		/* tx queue */
+
+	int			last_calib_ticks;
+
+	int 			power_level;	/* Requested tx power in dbm */
+	int			assoc;		/* assocate state */
+
+	int			hw_rate;	/* Hardware tx rate code */
+	int			hw_rtscts_rate;	/* Hardware rts/cts rate code */
+};
+
+#define ath5k_hw_hasbssidmask(_ah) \
+	(ath5k_hw_get_capability(_ah, AR5K_CAP_BSSIDMASK, 0, NULL) == 0)
+#define ath5k_hw_hasveol(_ah) \
+	(ath5k_hw_get_capability(_ah, AR5K_CAP_VEOL, 0, NULL) == 0)
+
+#endif

src/drivers/net/ath5k/desc.h

@@ -0,0 +1,332 @@
+/*
+ * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
+ * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com>
+ *
+ * Permission to use, copy, modify, and 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.
+ *
+ */
+
+/*
+ * Internal RX/TX descriptor structures
+ * (rX: reserved fields possibily used by future versions of the ar5k chipset)
+ */
+
+/*
+ * common hardware RX control descriptor
+ */
+struct ath5k_hw_rx_ctl {
+	u32	rx_control_0; /* RX control word 0 */
+	u32	rx_control_1; /* RX control word 1 */
+} __attribute__ ((packed));
+
+/* RX control word 0 field/sflags */
+#define AR5K_DESC_RX_CTL0			0x00000000
+
+/* RX control word 1 fields/flags */
+#define AR5K_DESC_RX_CTL1_BUF_LEN		0x00000fff
+#define AR5K_DESC_RX_CTL1_INTREQ		0x00002000
+
+/*
+ * common hardware RX status descriptor
+ * 5210/11 and 5212 differ only in the flags defined below
+ */
+struct ath5k_hw_rx_status {
+	u32	rx_status_0; /* RX status word 0 */
+	u32	rx_status_1; /* RX status word 1 */
+} __attribute__ ((packed));
+
+/* 5210/5211 */
+/* RX status word 0 fields/flags */
+#define AR5K_5210_RX_DESC_STATUS0_DATA_LEN		0x00000fff
+#define AR5K_5210_RX_DESC_STATUS0_MORE			0x00001000
+#define AR5K_5210_RX_DESC_STATUS0_RECEIVE_RATE		0x00078000
+#define AR5K_5210_RX_DESC_STATUS0_RECEIVE_RATE_S	15
+#define AR5K_5210_RX_DESC_STATUS0_RECEIVE_SIGNAL	0x07f80000
+#define AR5K_5210_RX_DESC_STATUS0_RECEIVE_SIGNAL_S	19
+#define AR5K_5210_RX_DESC_STATUS0_RECEIVE_ANTENNA	0x38000000
+#define AR5K_5210_RX_DESC_STATUS0_RECEIVE_ANTENNA_S	27
+
+/* RX status word 1 fields/flags */
+#define AR5K_5210_RX_DESC_STATUS1_DONE			0x00000001
+#define AR5K_5210_RX_DESC_STATUS1_FRAME_RECEIVE_OK	0x00000002
+#define AR5K_5210_RX_DESC_STATUS1_CRC_ERROR		0x00000004
+#define AR5K_5210_RX_DESC_STATUS1_FIFO_OVERRUN		0x00000008
+#define AR5K_5210_RX_DESC_STATUS1_DECRYPT_CRC_ERROR	0x00000010
+#define AR5K_5210_RX_DESC_STATUS1_PHY_ERROR		0x000000e0
+#define AR5K_5210_RX_DESC_STATUS1_PHY_ERROR_S		5
+#define AR5K_5210_RX_DESC_STATUS1_KEY_INDEX_VALID	0x00000100
+#define AR5K_5210_RX_DESC_STATUS1_KEY_INDEX		0x00007e00
+#define AR5K_5210_RX_DESC_STATUS1_KEY_INDEX_S		9
+#define AR5K_5210_RX_DESC_STATUS1_RECEIVE_TIMESTAMP	0x0fff8000
+#define AR5K_5210_RX_DESC_STATUS1_RECEIVE_TIMESTAMP_S	15
+#define AR5K_5210_RX_DESC_STATUS1_KEY_CACHE_MISS	0x10000000
+
+/* 5212 */
+/* RX status word 0 fields/flags */
+#define AR5K_5212_RX_DESC_STATUS0_DATA_LEN		0x00000fff
+#define AR5K_5212_RX_DESC_STATUS0_MORE			0x00001000
+#define AR5K_5212_RX_DESC_STATUS0_DECOMP_CRC_ERROR	0x00002000
+#define AR5K_5212_RX_DESC_STATUS0_RECEIVE_RATE		0x000f8000
+#define AR5K_5212_RX_DESC_STATUS0_RECEIVE_RATE_S	15
+#define AR5K_5212_RX_DESC_STATUS0_RECEIVE_SIGNAL	0x0ff00000
+#define AR5K_5212_RX_DESC_STATUS0_RECEIVE_SIGNAL_S	20
+#define AR5K_5212_RX_DESC_STATUS0_RECEIVE_ANTENNA	0xf0000000
+#define AR5K_5212_RX_DESC_STATUS0_RECEIVE_ANTENNA_S	28
+
+/* RX status word 1 fields/flags */
+#define AR5K_5212_RX_DESC_STATUS1_DONE			0x00000001
+#define AR5K_5212_RX_DESC_STATUS1_FRAME_RECEIVE_OK	0x00000002
+#define AR5K_5212_RX_DESC_STATUS1_CRC_ERROR		0x00000004
+#define AR5K_5212_RX_DESC_STATUS1_DECRYPT_CRC_ERROR	0x00000008
+#define AR5K_5212_RX_DESC_STATUS1_PHY_ERROR		0x00000010
+#define AR5K_5212_RX_DESC_STATUS1_MIC_ERROR		0x00000020
+#define AR5K_5212_RX_DESC_STATUS1_KEY_INDEX_VALID	0x00000100
+#define AR5K_5212_RX_DESC_STATUS1_KEY_INDEX		0x0000fe00
+#define AR5K_5212_RX_DESC_STATUS1_KEY_INDEX_S		9
+#define AR5K_5212_RX_DESC_STATUS1_RECEIVE_TIMESTAMP	0x7fff0000
+#define AR5K_5212_RX_DESC_STATUS1_RECEIVE_TIMESTAMP_S	16
+#define AR5K_5212_RX_DESC_STATUS1_KEY_CACHE_MISS	0x80000000
+
+/*
+ * common hardware RX error descriptor
+ */
+struct ath5k_hw_rx_error {
+	u32	rx_error_0; /* RX status word 0 */
+	u32	rx_error_1; /* RX status word 1 */
+} __attribute__ ((packed));
+
+/* RX error word 0 fields/flags */
+#define AR5K_RX_DESC_ERROR0			0x00000000
+
+/* RX error word 1 fields/flags */
+#define AR5K_RX_DESC_ERROR1_PHY_ERROR_CODE	0x0000ff00
+#define AR5K_RX_DESC_ERROR1_PHY_ERROR_CODE_S	8
+
+/* PHY Error codes */
+#define AR5K_DESC_RX_PHY_ERROR_NONE		0x00
+#define AR5K_DESC_RX_PHY_ERROR_TIMING		0x20
+#define AR5K_DESC_RX_PHY_ERROR_PARITY		0x40
+#define AR5K_DESC_RX_PHY_ERROR_RATE		0x60
+#define AR5K_DESC_RX_PHY_ERROR_LENGTH		0x80
+#define AR5K_DESC_RX_PHY_ERROR_64QAM		0xa0
+#define AR5K_DESC_RX_PHY_ERROR_SERVICE		0xc0
+#define AR5K_DESC_RX_PHY_ERROR_TRANSMITOVR	0xe0
+
+/*
+ * 5210/5211 hardware 2-word TX control descriptor
+ */
+struct ath5k_hw_2w_tx_ctl {
+	u32	tx_control_0; /* TX control word 0 */
+	u32	tx_control_1; /* TX control word 1 */
+} __attribute__ ((packed));
+
+/* TX control word 0 fields/flags */
+#define AR5K_2W_TX_DESC_CTL0_FRAME_LEN		0x00000fff
+#define AR5K_2W_TX_DESC_CTL0_HEADER_LEN		0x0003f000 /*[5210 ?]*/
+#define AR5K_2W_TX_DESC_CTL0_HEADER_LEN_S	12
+#define AR5K_2W_TX_DESC_CTL0_XMIT_RATE		0x003c0000
+#define AR5K_2W_TX_DESC_CTL0_XMIT_RATE_S	18
+#define AR5K_2W_TX_DESC_CTL0_RTSENA		0x00400000
+#define AR5K_2W_TX_DESC_CTL0_CLRDMASK		0x01000000
+#define AR5K_2W_TX_DESC_CTL0_LONG_PACKET	0x00800000 /*[5210]*/
+#define AR5K_2W_TX_DESC_CTL0_VEOL		0x00800000 /*[5211]*/
+#define AR5K_2W_TX_DESC_CTL0_FRAME_TYPE		0x1c000000 /*[5210]*/
+#define AR5K_2W_TX_DESC_CTL0_FRAME_TYPE_S	26
+#define AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT_5210	0x02000000
+#define AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT_5211	0x1e000000
+
+#define AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT			\
+		(ah->ah_version == AR5K_AR5210 ?		\
+		AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT_5210 :	\
+		AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT_5211)
+
+#define AR5K_2W_TX_DESC_CTL0_ANT_MODE_XMIT_S	25
+#define AR5K_2W_TX_DESC_CTL0_INTREQ		0x20000000
+#define AR5K_2W_TX_DESC_CTL0_ENCRYPT_KEY_VALID	0x40000000
+
+/* TX control word 1 fields/flags */
+#define AR5K_2W_TX_DESC_CTL1_BUF_LEN		0x00000fff
+#define AR5K_2W_TX_DESC_CTL1_MORE		0x00001000
+#define AR5K_2W_TX_DESC_CTL1_ENCRYPT_KEY_INDEX_5210	0x0007e000
+#define AR5K_2W_TX_DESC_CTL1_ENCRYPT_KEY_INDEX_5211	0x000fe000
+
+#define AR5K_2W_TX_DESC_CTL1_ENCRYPT_KEY_INDEX				\
+			(ah->ah_version == AR5K_AR5210 ?		\
+			AR5K_2W_TX_DESC_CTL1_ENCRYPT_KEY_INDEX_5210 :	\
+			AR5K_2W_TX_DESC_CTL1_ENCRYPT_KEY_INDEX_5211)
+
+#define AR5K_2W_TX_DESC_CTL1_ENCRYPT_KEY_INDEX_S	13
+#define AR5K_2W_TX_DESC_CTL1_FRAME_TYPE		0x00700000 /*[5211]*/
+#define AR5K_2W_TX_DESC_CTL1_FRAME_TYPE_S	20
+#define AR5K_2W_TX_DESC_CTL1_NOACK		0x00800000 /*[5211]*/
+#define AR5K_2W_TX_DESC_CTL1_RTS_DURATION	0xfff80000 /*[5210 ?]*/
+
+/* Frame types */
+#define AR5K_AR5210_TX_DESC_FRAME_TYPE_NORMAL   0x00
+#define AR5K_AR5210_TX_DESC_FRAME_TYPE_ATIM     0x04
+#define AR5K_AR5210_TX_DESC_FRAME_TYPE_PSPOLL   0x08
+#define AR5K_AR5210_TX_DESC_FRAME_TYPE_NO_DELAY 0x0c
+#define AR5K_AR5210_TX_DESC_FRAME_TYPE_PIFS     0x10
+
+/*
+ * 5212 hardware 4-word TX control descriptor
+ */
+struct ath5k_hw_4w_tx_ctl {
+	u32	tx_control_0; /* TX control word 0 */
+
+#define AR5K_4W_TX_DESC_CTL0_FRAME_LEN		0x00000fff
+#define AR5K_4W_TX_DESC_CTL0_XMIT_POWER		0x003f0000
+#define AR5K_4W_TX_DESC_CTL0_XMIT_POWER_S	16
+#define AR5K_4W_TX_DESC_CTL0_RTSENA		0x00400000
+#define AR5K_4W_TX_DESC_CTL0_VEOL		0x00800000
+#define AR5K_4W_TX_DESC_CTL0_CLRDMASK		0x01000000
+#define AR5K_4W_TX_DESC_CTL0_ANT_MODE_XMIT	0x1e000000
+#define AR5K_4W_TX_DESC_CTL0_ANT_MODE_XMIT_S	25
+#define AR5K_4W_TX_DESC_CTL0_INTREQ		0x20000000
+#define AR5K_4W_TX_DESC_CTL0_ENCRYPT_KEY_VALID	0x40000000
+#define AR5K_4W_TX_DESC_CTL0_CTSENA		0x80000000
+
+	u32	tx_control_1; /* TX control word 1 */
+
+#define AR5K_4W_TX_DESC_CTL1_BUF_LEN		0x00000fff
+#define AR5K_4W_TX_DESC_CTL1_MORE		0x00001000
+#define AR5K_4W_TX_DESC_CTL1_ENCRYPT_KEY_INDEX	0x000fe000
+#define AR5K_4W_TX_DESC_CTL1_ENCRYPT_KEY_INDEX_S	13
+#define AR5K_4W_TX_DESC_CTL1_FRAME_TYPE		0x00f00000
+#define AR5K_4W_TX_DESC_CTL1_FRAME_TYPE_S	20
+#define AR5K_4W_TX_DESC_CTL1_NOACK		0x01000000
+#define AR5K_4W_TX_DESC_CTL1_COMP_PROC		0x06000000
+#define AR5K_4W_TX_DESC_CTL1_COMP_PROC_S	25
+#define AR5K_4W_TX_DESC_CTL1_COMP_IV_LEN	0x18000000
+#define AR5K_4W_TX_DESC_CTL1_COMP_IV_LEN_S	27
+#define AR5K_4W_TX_DESC_CTL1_COMP_ICV_LEN	0x60000000
+#define AR5K_4W_TX_DESC_CTL1_COMP_ICV_LEN_S	29
+
+	u32	tx_control_2; /* TX control word 2 */
+
+#define AR5K_4W_TX_DESC_CTL2_RTS_DURATION		0x00007fff
+#define AR5K_4W_TX_DESC_CTL2_DURATION_UPDATE_ENABLE	0x00008000
+#define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES0		0x000f0000
+#define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES0_S		16
+#define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES1		0x00f00000
+#define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES1_S		20
+#define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES2		0x0f000000
+#define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES2_S		24
+#define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES3		0xf0000000
+#define AR5K_4W_TX_DESC_CTL2_XMIT_TRIES3_S		28
+
+	u32	tx_control_3; /* TX control word 3 */
+
+#define AR5K_4W_TX_DESC_CTL3_XMIT_RATE0		0x0000001f
+#define AR5K_4W_TX_DESC_CTL3_XMIT_RATE1		0x000003e0
+#define AR5K_4W_TX_DESC_CTL3_XMIT_RATE1_S	5
+#define AR5K_4W_TX_DESC_CTL3_XMIT_RATE2		0x00007c00
+#define AR5K_4W_TX_DESC_CTL3_XMIT_RATE2_S	10
+#define AR5K_4W_TX_DESC_CTL3_XMIT_RATE3		0x000f8000
+#define AR5K_4W_TX_DESC_CTL3_XMIT_RATE3_S	15
+#define AR5K_4W_TX_DESC_CTL3_RTS_CTS_RATE	0x01f00000
+#define AR5K_4W_TX_DESC_CTL3_RTS_CTS_RATE_S	20
+} __attribute__ ((packed));
+
+/*
+ * Common TX status descriptor
+ */
+struct ath5k_hw_tx_status {
+	u32	tx_status_0; /* TX status word 0 */
+	u32	tx_status_1; /* TX status word 1 */
+} __attribute__ ((packed));
+
+/* TX status word 0 fields/flags */
+#define AR5K_DESC_TX_STATUS0_FRAME_XMIT_OK	0x00000001
+#define AR5K_DESC_TX_STATUS0_EXCESSIVE_RETRIES	0x00000002
+#define AR5K_DESC_TX_STATUS0_FIFO_UNDERRUN	0x00000004
+#define AR5K_DESC_TX_STATUS0_FILTERED		0x00000008
+/*???
+#define AR5K_DESC_TX_STATUS0_RTS_FAIL_COUNT	0x000000f0
+#define AR5K_DESC_TX_STATUS0_RTS_FAIL_COUNT_S	4
+*/
+#define AR5K_DESC_TX_STATUS0_SHORT_RETRY_COUNT	0x000000f0
+#define AR5K_DESC_TX_STATUS0_SHORT_RETRY_COUNT_S	4
+/*???
+#define AR5K_DESC_TX_STATUS0_DATA_FAIL_COUNT	0x00000f00
+#define AR5K_DESC_TX_STATUS0_DATA_FAIL_COUNT_S	8
+*/
+#define AR5K_DESC_TX_STATUS0_LONG_RETRY_COUNT	0x00000f00
+#define AR5K_DESC_TX_STATUS0_LONG_RETRY_COUNT_S	8
+#define AR5K_DESC_TX_STATUS0_VIRT_COLL_COUNT	0x0000f000
+#define AR5K_DESC_TX_STATUS0_VIRT_COLL_COUNT_S	12
+#define AR5K_DESC_TX_STATUS0_SEND_TIMESTAMP	0xffff0000
+#define AR5K_DESC_TX_STATUS0_SEND_TIMESTAMP_S	16
+
+/* TX status word 1 fields/flags */
+#define AR5K_DESC_TX_STATUS1_DONE		0x00000001
+#define AR5K_DESC_TX_STATUS1_SEQ_NUM		0x00001ffe
+#define AR5K_DESC_TX_STATUS1_SEQ_NUM_S		1
+#define AR5K_DESC_TX_STATUS1_ACK_SIG_STRENGTH	0x001fe000
+#define AR5K_DESC_TX_STATUS1_ACK_SIG_STRENGTH_S	13
+#define AR5K_DESC_TX_STATUS1_FINAL_TS_INDEX	0x00600000
+#define AR5K_DESC_TX_STATUS1_FINAL_TS_INDEX_S	21
+#define AR5K_DESC_TX_STATUS1_COMP_SUCCESS	0x00800000
+#define AR5K_DESC_TX_STATUS1_XMIT_ANTENNA	0x01000000
+
+/*
+ * 5210/5211 hardware TX descriptor
+ */
+struct ath5k_hw_5210_tx_desc {
+	struct ath5k_hw_2w_tx_ctl	tx_ctl;
+	struct ath5k_hw_tx_status	tx_stat;
+} __attribute__ ((packed));
+
+/*
+ * 5212 hardware TX descriptor
+ */
+struct ath5k_hw_5212_tx_desc {
+	struct ath5k_hw_4w_tx_ctl	tx_ctl;
+	struct ath5k_hw_tx_status	tx_stat;
+} __attribute__ ((packed));
+
+/*
+ * common hardware RX descriptor
+ */
+struct ath5k_hw_all_rx_desc {
+	struct ath5k_hw_rx_ctl			rx_ctl;
+	union {
+		struct ath5k_hw_rx_status	rx_stat;
+		struct ath5k_hw_rx_error	rx_err;
+	} u;
+} __attribute__ ((packed));
+
+/*
+ * Atheros hardware descriptor
+ * This is read and written to by the hardware
+ */
+struct ath5k_desc {
+	u32	ds_link;	/* physical address of the next descriptor */
+	u32	ds_data;	/* physical address of data buffer (skb) */
+
+	union {
+		struct ath5k_hw_5210_tx_desc	ds_tx5210;
+		struct ath5k_hw_5212_tx_desc	ds_tx5212;
+		struct ath5k_hw_all_rx_desc	ds_rx;
+	} ud;
+} __attribute__ ((packed));
+
+#define AR5K_RXDESC_INTREQ	0x0020
+
+#define AR5K_TXDESC_CLRDMASK	0x0001
+#define AR5K_TXDESC_NOACK	0x0002	/*[5211+]*/
+#define AR5K_TXDESC_RTSENA	0x0004
+#define AR5K_TXDESC_CTSENA	0x0008
+#define AR5K_TXDESC_INTREQ	0x0010
+#define AR5K_TXDESC_VEOL	0x0020	/*[5211+]*/
+

src/drivers/net/ath5k/eeprom.h

@@ -0,0 +1,441 @@
+/*
+ * Copyright (c) 2004-2008 Reyk Floeter <reyk@openbsd.org>
+ * Copyright (c) 2006-2008 Nick Kossifidis <mickflemm@gmail.com>
+ *
+ * Permission to use, copy, modify, and 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.
+ *
+ */
+
+/*
+ * Common ar5xxx EEPROM data offsets (set these on AR5K_EEPROM_BASE)
+ */
+#define AR5K_EEPROM_MAGIC		0x003d	/* EEPROM Magic number */
+#define AR5K_EEPROM_MAGIC_VALUE		0x5aa5	/* Default - found on EEPROM */
+#define AR5K_EEPROM_MAGIC_5212		0x0000145c /* 5212 */
+#define AR5K_EEPROM_MAGIC_5211		0x0000145b /* 5211 */
+#define AR5K_EEPROM_MAGIC_5210		0x0000145a /* 5210 */
+
+#define	AR5K_EEPROM_IS_HB63		0x000b	/* Talon detect */
+#define AR5K_EEPROM_REG_DOMAIN		0x00bf	/* EEPROM regdom */
+#define AR5K_EEPROM_CHECKSUM		0x00c0	/* EEPROM checksum */
+#define AR5K_EEPROM_INFO_BASE		0x00c0	/* EEPROM header */
+#define AR5K_EEPROM_INFO_MAX		(0x400 - AR5K_EEPROM_INFO_BASE)
+#define AR5K_EEPROM_INFO_CKSUM		0xffff
+#define AR5K_EEPROM_INFO(_n)		(AR5K_EEPROM_INFO_BASE + (_n))
+
+#define AR5K_EEPROM_VERSION		AR5K_EEPROM_INFO(1)	/* EEPROM Version */
+#define AR5K_EEPROM_VERSION_3_0		0x3000	/* No idea what's going on before this version */
+#define AR5K_EEPROM_VERSION_3_1		0x3001	/* ob/db values for 2Ghz (ar5211_rfregs) */
+#define AR5K_EEPROM_VERSION_3_2		0x3002	/* different frequency representation (eeprom_bin2freq) */
+#define AR5K_EEPROM_VERSION_3_3		0x3003	/* offsets changed, has 32 CTLs (see below) and ee_false_detect (eeprom_read_modes) */
+#define AR5K_EEPROM_VERSION_3_4		0x3004	/* has ee_i_gain, ee_cck_ofdm_power_delta (eeprom_read_modes) */
+#define AR5K_EEPROM_VERSION_4_0		0x4000	/* has ee_misc, ee_cal_pier, ee_turbo_max_power and ee_xr_power (eeprom_init) */
+#define AR5K_EEPROM_VERSION_4_1		0x4001	/* has ee_margin_tx_rx (eeprom_init) */
+#define AR5K_EEPROM_VERSION_4_2		0x4002	/* has ee_cck_ofdm_gain_delta (eeprom_init) */
+#define AR5K_EEPROM_VERSION_4_3		0x4003	/* power calibration changes */
+#define AR5K_EEPROM_VERSION_4_4		0x4004
+#define AR5K_EEPROM_VERSION_4_5		0x4005
+#define AR5K_EEPROM_VERSION_4_6		0x4006	/* has ee_scaled_cck_delta */
+#define AR5K_EEPROM_VERSION_4_7		0x3007	/* 4007 ? */
+#define AR5K_EEPROM_VERSION_4_9		0x4009	/* EAR futureproofing */
+#define AR5K_EEPROM_VERSION_5_0		0x5000	/* Has 2413 PDADC calibration etc */
+#define AR5K_EEPROM_VERSION_5_1		0x5001	/* Has capability values */
+#define AR5K_EEPROM_VERSION_5_3		0x5003	/* Has spur mitigation tables */
+
+#define AR5K_EEPROM_MODE_11A		0
+#define AR5K_EEPROM_MODE_11B		1
+#define AR5K_EEPROM_MODE_11G		2
+
+#define AR5K_EEPROM_HDR			AR5K_EEPROM_INFO(2)	/* Header that contains the device caps */
+#define AR5K_EEPROM_HDR_11A(_v)		(((_v) >> AR5K_EEPROM_MODE_11A) & 0x1)
+#define AR5K_EEPROM_HDR_11B(_v)		(((_v) >> AR5K_EEPROM_MODE_11B) & 0x1)
+#define AR5K_EEPROM_HDR_11G(_v)		(((_v) >> AR5K_EEPROM_MODE_11G) & 0x1)
+#define AR5K_EEPROM_HDR_T_2GHZ_DIS(_v)	(((_v) >> 3) & 0x1)	/* Disable turbo for 2Ghz (?) */
+#define AR5K_EEPROM_HDR_T_5GHZ_DBM(_v)	(((_v) >> 4) & 0x7f)	/* Max turbo power for a/XR mode (eeprom_init) */
+#define AR5K_EEPROM_HDR_DEVICE(_v)	(((_v) >> 11) & 0x7)
+#define AR5K_EEPROM_HDR_RFKILL(_v)	(((_v) >> 14) & 0x1)	/* Device has RFKill support */
+#define AR5K_EEPROM_HDR_T_5GHZ_DIS(_v)	(((_v) >> 15) & 0x1)	/* Disable turbo for 5Ghz */
+
+#define AR5K_EEPROM_RFKILL_GPIO_SEL	0x0000001c
+#define AR5K_EEPROM_RFKILL_GPIO_SEL_S	2
+#define AR5K_EEPROM_RFKILL_POLARITY	0x00000002
+#define AR5K_EEPROM_RFKILL_POLARITY_S	1
+
+/* Newer EEPROMs are using a different offset */
+#define AR5K_EEPROM_OFF(_v, _v3_0, _v3_3) \
+	(((_v) >= AR5K_EEPROM_VERSION_3_3) ? _v3_3 : _v3_0)
+
+#define AR5K_EEPROM_ANT_GAIN(_v)	AR5K_EEPROM_OFF(_v, 0x00c4, 0x00c3)
+#define AR5K_EEPROM_ANT_GAIN_5GHZ(_v)	((s8)(((_v) >> 8) & 0xff))
+#define AR5K_EEPROM_ANT_GAIN_2GHZ(_v)	((s8)((_v) & 0xff))
+
+/* Misc values available since EEPROM 4.0 */
+#define AR5K_EEPROM_MISC0		AR5K_EEPROM_INFO(4)
+#define AR5K_EEPROM_EARSTART(_v)	((_v) & 0xfff)
+#define AR5K_EEPROM_HDR_XR2_DIS(_v)	(((_v) >> 12) & 0x1)
+#define AR5K_EEPROM_HDR_XR5_DIS(_v)	(((_v) >> 13) & 0x1)
+#define AR5K_EEPROM_EEMAP(_v)		(((_v) >> 14) & 0x3)
+
+#define AR5K_EEPROM_MISC1			AR5K_EEPROM_INFO(5)
+#define AR5K_EEPROM_TARGET_PWRSTART(_v)		((_v) & 0xfff)
+#define AR5K_EEPROM_HAS32KHZCRYSTAL(_v)		(((_v) >> 14) & 0x1)
+#define AR5K_EEPROM_HAS32KHZCRYSTAL_OLD(_v)	(((_v) >> 15) & 0x1)
+
+#define AR5K_EEPROM_MISC2			AR5K_EEPROM_INFO(6)
+#define AR5K_EEPROM_EEP_FILE_VERSION(_v)	(((_v) >> 8) & 0xff)
+#define AR5K_EEPROM_EAR_FILE_VERSION(_v)	((_v) & 0xff)
+
+#define AR5K_EEPROM_MISC3		AR5K_EEPROM_INFO(7)
+#define AR5K_EEPROM_ART_BUILD_NUM(_v)	(((_v) >> 10) & 0x3f)
+#define AR5K_EEPROM_EAR_FILE_ID(_v)	((_v) & 0xff)
+
+#define AR5K_EEPROM_MISC4		AR5K_EEPROM_INFO(8)
+#define AR5K_EEPROM_CAL_DATA_START(_v)	(((_v) >> 4) & 0xfff)
+#define AR5K_EEPROM_MASK_R0(_v)		(((_v) >> 2) & 0x3)
+#define AR5K_EEPROM_MASK_R1(_v)		((_v) & 0x3)
+
+#define AR5K_EEPROM_MISC5		AR5K_EEPROM_INFO(9)
+#define AR5K_EEPROM_COMP_DIS(_v)	((_v) & 0x1)
+#define AR5K_EEPROM_AES_DIS(_v)		(((_v) >> 1) & 0x1)
+#define AR5K_EEPROM_FF_DIS(_v)		(((_v) >> 2) & 0x1)
+#define AR5K_EEPROM_BURST_DIS(_v)	(((_v) >> 3) & 0x1)
+#define AR5K_EEPROM_MAX_QCU(_v)		(((_v) >> 4) & 0xf)
+#define AR5K_EEPROM_HEAVY_CLIP_EN(_v)	(((_v) >> 8) & 0x1)
+#define AR5K_EEPROM_KEY_CACHE_SIZE(_v)	(((_v) >> 12) & 0xf)
+
+#define AR5K_EEPROM_MISC6		AR5K_EEPROM_INFO(10)
+#define AR5K_EEPROM_TX_CHAIN_DIS	((_v) & 0x8)
+#define AR5K_EEPROM_RX_CHAIN_DIS	(((_v) >> 3) & 0x8)
+#define AR5K_EEPROM_FCC_MID_EN		(((_v) >> 6) & 0x1)
+#define AR5K_EEPROM_JAP_U1EVEN_EN	(((_v) >> 7) & 0x1)
+#define AR5K_EEPROM_JAP_U2_EN		(((_v) >> 8) & 0x1)
+#define AR5K_EEPROM_JAP_U1ODD_EN	(((_v) >> 9) & 0x1)
+#define AR5K_EEPROM_JAP_11A_NEW_EN	(((_v) >> 10) & 0x1)
+
+/* calibration settings */
+#define AR5K_EEPROM_MODES_11A(_v)	AR5K_EEPROM_OFF(_v, 0x00c5, 0x00d4)
+#define AR5K_EEPROM_MODES_11B(_v)	AR5K_EEPROM_OFF(_v, 0x00d0, 0x00f2)
+#define AR5K_EEPROM_MODES_11G(_v)	AR5K_EEPROM_OFF(_v, 0x00da, 0x010d)
+#define AR5K_EEPROM_CTL(_v)		AR5K_EEPROM_OFF(_v, 0x00e4, 0x0128)	/* Conformance test limits */
+#define AR5K_EEPROM_GROUPS_START(_v)	AR5K_EEPROM_OFF(_v, 0x0100, 0x0150)	/* Start of Groups */
+#define AR5K_EEPROM_GROUP1_OFFSET	0x0
+#define AR5K_EEPROM_GROUP2_OFFSET	0x5
+#define AR5K_EEPROM_GROUP3_OFFSET	0x37
+#define AR5K_EEPROM_GROUP4_OFFSET	0x46
+#define AR5K_EEPROM_GROUP5_OFFSET	0x55
+#define AR5K_EEPROM_GROUP6_OFFSET	0x65
+#define AR5K_EEPROM_GROUP7_OFFSET	0x69
+#define AR5K_EEPROM_GROUP8_OFFSET	0x6f
+
+#define AR5K_EEPROM_TARGET_PWR_OFF_11A(_v)	AR5K_EEPROM_OFF(_v, AR5K_EEPROM_GROUPS_START(_v) + \
+								AR5K_EEPROM_GROUP5_OFFSET, 0x0000)
+#define AR5K_EEPROM_TARGET_PWR_OFF_11B(_v)	AR5K_EEPROM_OFF(_v, AR5K_EEPROM_GROUPS_START(_v) + \
+								AR5K_EEPROM_GROUP6_OFFSET, 0x0010)
+#define AR5K_EEPROM_TARGET_PWR_OFF_11G(_v)	AR5K_EEPROM_OFF(_v, AR5K_EEPROM_GROUPS_START(_v) + \
+								AR5K_EEPROM_GROUP7_OFFSET, 0x0014)
+
+/* [3.1 - 3.3] */
+#define AR5K_EEPROM_OBDB0_2GHZ		0x00ec
+#define AR5K_EEPROM_OBDB1_2GHZ		0x00ed
+
+#define AR5K_EEPROM_PROTECT		0x003f	/* EEPROM protect status */
+#define AR5K_EEPROM_PROTECT_RD_0_31	0x0001	/* Read protection bit for offsets 0x0 - 0x1f */
+#define AR5K_EEPROM_PROTECT_WR_0_31	0x0002	/* Write protection bit for offsets 0x0 - 0x1f */
+#define AR5K_EEPROM_PROTECT_RD_32_63	0x0004	/* 0x20 - 0x3f */
+#define AR5K_EEPROM_PROTECT_WR_32_63	0x0008
+#define AR5K_EEPROM_PROTECT_RD_64_127	0x0010	/* 0x40 - 0x7f */
+#define AR5K_EEPROM_PROTECT_WR_64_127	0x0020
+#define AR5K_EEPROM_PROTECT_RD_128_191	0x0040	/* 0x80 - 0xbf (regdom) */
+#define AR5K_EEPROM_PROTECT_WR_128_191	0x0080
+#define AR5K_EEPROM_PROTECT_RD_192_207	0x0100	/* 0xc0 - 0xcf */
+#define AR5K_EEPROM_PROTECT_WR_192_207	0x0200
+#define AR5K_EEPROM_PROTECT_RD_208_223	0x0400	/* 0xd0 - 0xdf */
+#define AR5K_EEPROM_PROTECT_WR_208_223	0x0800
+#define AR5K_EEPROM_PROTECT_RD_224_239	0x1000	/* 0xe0 - 0xef */
+#define AR5K_EEPROM_PROTECT_WR_224_239	0x2000
+#define AR5K_EEPROM_PROTECT_RD_240_255	0x4000	/* 0xf0 - 0xff */
+#define AR5K_EEPROM_PROTECT_WR_240_255	0x8000
+
+/* Some EEPROM defines */
+#define AR5K_EEPROM_EEP_SCALE		100
+#define AR5K_EEPROM_EEP_DELTA		10
+#define AR5K_EEPROM_N_MODES		3
+#define AR5K_EEPROM_N_5GHZ_CHAN		10
+#define AR5K_EEPROM_N_2GHZ_CHAN		3
+#define AR5K_EEPROM_N_2GHZ_CHAN_2413	4
+#define	AR5K_EEPROM_N_2GHZ_CHAN_MAX	4
+#define AR5K_EEPROM_MAX_CHAN		10
+#define AR5K_EEPROM_N_PWR_POINTS_5111	11
+#define AR5K_EEPROM_N_PCDAC		11
+#define AR5K_EEPROM_N_PHASE_CAL		5
+#define AR5K_EEPROM_N_TEST_FREQ		8
+#define AR5K_EEPROM_N_EDGES		8
+#define AR5K_EEPROM_N_INTERCEPTS	11
+#define AR5K_EEPROM_FREQ_M(_v)		AR5K_EEPROM_OFF(_v, 0x7f, 0xff)
+#define AR5K_EEPROM_PCDAC_M		0x3f
+#define AR5K_EEPROM_PCDAC_START		1
+#define AR5K_EEPROM_PCDAC_STOP		63
+#define AR5K_EEPROM_PCDAC_STEP		1
+#define AR5K_EEPROM_NON_EDGE_M		0x40
+#define AR5K_EEPROM_CHANNEL_POWER	8
+#define AR5K_EEPROM_N_OBDB		4
+#define AR5K_EEPROM_OBDB_DIS		0xffff
+#define AR5K_EEPROM_CHANNEL_DIS		0xff
+#define AR5K_EEPROM_SCALE_OC_DELTA(_x)	(((_x) * 2) / 10)
+#define AR5K_EEPROM_N_CTLS(_v)		AR5K_EEPROM_OFF(_v, 16, 32)
+#define AR5K_EEPROM_MAX_CTLS		32
+#define AR5K_EEPROM_N_PD_CURVES		4
+#define AR5K_EEPROM_N_XPD0_POINTS	4
+#define AR5K_EEPROM_N_XPD3_POINTS	3
+#define AR5K_EEPROM_N_PD_GAINS		4
+#define AR5K_EEPROM_N_PD_POINTS		5
+#define AR5K_EEPROM_N_INTERCEPT_10_2GHZ	35
+#define AR5K_EEPROM_N_INTERCEPT_10_5GHZ	55
+#define AR5K_EEPROM_POWER_M		0x3f
+#define AR5K_EEPROM_POWER_MIN		0
+#define AR5K_EEPROM_POWER_MAX		3150
+#define AR5K_EEPROM_POWER_STEP		50
+#define AR5K_EEPROM_POWER_TABLE_SIZE	64
+#define AR5K_EEPROM_N_POWER_LOC_11B	4
+#define AR5K_EEPROM_N_POWER_LOC_11G	6
+#define AR5K_EEPROM_I_GAIN		10
+#define AR5K_EEPROM_CCK_OFDM_DELTA	15
+#define AR5K_EEPROM_N_IQ_CAL		2
+
+#define AR5K_EEPROM_READ(_o, _v) do {			\
+	ret = ath5k_hw_eeprom_read(ah, (_o), &(_v));	\
+	if (ret)					\
+		return ret;				\
+} while (0)
+
+#define AR5K_EEPROM_READ_HDR(_o, _v)					\
+	AR5K_EEPROM_READ(_o, ah->ah_capabilities.cap_eeprom._v);	\
+
+enum ath5k_ant_setting {
+	AR5K_ANT_VARIABLE	= 0,	/* variable by programming */
+	AR5K_ANT_FIXED_A	= 1,	/* fixed to 11a frequencies */
+	AR5K_ANT_FIXED_B	= 2,	/* fixed to 11b frequencies */
+	AR5K_ANT_MAX		= 3,
+};
+
+enum ath5k_ctl_mode {
+	AR5K_CTL_11A = 0,
+	AR5K_CTL_11B = 1,
+	AR5K_CTL_11G = 2,
+	AR5K_CTL_TURBO = 3,
+	AR5K_CTL_TURBOG = 4,
+	AR5K_CTL_2GHT20 = 5,
+	AR5K_CTL_5GHT20 = 6,
+	AR5K_CTL_2GHT40 = 7,
+	AR5K_CTL_5GHT40 = 8,
+	AR5K_CTL_MODE_M = 15,
+};
+
+/* Default CTL ids for the 3 main reg domains.
+ * Atheros only uses these by default but vendors
+ * can have up to 32 different CTLs for different
+ * scenarios. Note that theese values are ORed with
+ * the mode id (above) so we can have up to 24 CTL
+ * datasets out of these 3 main regdomains. That leaves
+ * 8 ids that can be used by vendors and since 0x20 is
+ * missing from HAL sources i guess this is the set of
+ * custom CTLs vendors can use. */
+#define	AR5K_CTL_FCC	0x10
+#define	AR5K_CTL_CUSTOM	0x20
+#define	AR5K_CTL_ETSI	0x30
+#define	AR5K_CTL_MKK	0x40
+
+/* Indicates a CTL with only mode set and
+ * no reg domain mapping, such CTLs are used
+ * for world roaming domains or simply when
+ * a reg domain is not set */
+#define	AR5K_CTL_NO_REGDOMAIN	0xf0
+
+/* Indicates an empty (invalid) CTL */
+#define AR5K_CTL_NO_CTL		0xff
+
+/* Per channel calibration data, used for power table setup */
+struct ath5k_chan_pcal_info_rf5111 {
+	/* Power levels in half dbm units
+	 * for one power curve. */
+	u8 pwr[AR5K_EEPROM_N_PWR_POINTS_5111];
+	/* PCDAC table steps
+	 * for the above values */
+	u8 pcdac[AR5K_EEPROM_N_PWR_POINTS_5111];
+	/* Starting PCDAC step */
+	u8 pcdac_min;
+	/* Final PCDAC step */
+	u8 pcdac_max;
+};
+
+struct ath5k_chan_pcal_info_rf5112 {
+	/* Power levels in quarter dBm units
+	 * for lower (0) and higher (3)
+	 * level curves in 0.25dB units */
+	s8 pwr_x0[AR5K_EEPROM_N_XPD0_POINTS];
+	s8 pwr_x3[AR5K_EEPROM_N_XPD3_POINTS];
+	/* PCDAC table steps
+	 * for the above values */
+	u8 pcdac_x0[AR5K_EEPROM_N_XPD0_POINTS];
+	u8 pcdac_x3[AR5K_EEPROM_N_XPD3_POINTS];
+};
+
+struct ath5k_chan_pcal_info_rf2413 {
+	/* Starting pwr/pddac values */
+	s8 pwr_i[AR5K_EEPROM_N_PD_GAINS];
+	u8 pddac_i[AR5K_EEPROM_N_PD_GAINS];
+	/* (pwr,pddac) points
+	 * power levels in 0.5dB units */
+	s8 pwr[AR5K_EEPROM_N_PD_GAINS]
+		[AR5K_EEPROM_N_PD_POINTS];
+	u8 pddac[AR5K_EEPROM_N_PD_GAINS]
+		[AR5K_EEPROM_N_PD_POINTS];
+};
+
+enum ath5k_powertable_type {
+	AR5K_PWRTABLE_PWR_TO_PCDAC = 0,
+	AR5K_PWRTABLE_LINEAR_PCDAC = 1,
+	AR5K_PWRTABLE_PWR_TO_PDADC = 2,
+};
+
+struct ath5k_pdgain_info {
+	u8 pd_points;
+	u8 *pd_step;
+	/* Power values are in
+	 * 0.25dB units */
+	s16 *pd_pwr;
+};
+
+struct ath5k_chan_pcal_info {
+	/* Frequency */
+	u16	freq;
+	/* Tx power boundaries */
+	s16	max_pwr;
+	s16	min_pwr;
+	union {
+		struct ath5k_chan_pcal_info_rf5111 rf5111_info;
+		struct ath5k_chan_pcal_info_rf5112 rf5112_info;
+		struct ath5k_chan_pcal_info_rf2413 rf2413_info;
+	};
+	/* Raw values used by phy code
+	 * Curves are stored in order from lower
+	 * gain to higher gain (max txpower -> min txpower) */
+	struct ath5k_pdgain_info *pd_curves;
+};
+
+/* Per rate calibration data for each mode,
+ * used for rate power table setup.
+ * Note: Values in 0.5dB units */
+struct ath5k_rate_pcal_info {
+	u16	freq; /* Frequency */
+	/* Power level for 6-24Mbit/s rates or
+	 * 1Mb rate */
+	u16	target_power_6to24;
+	/* Power level for 36Mbit rate or
+	 * 2Mb rate */
+	u16	target_power_36;
+	/* Power level for 48Mbit rate or
+	 * 5.5Mbit rate */
+	u16	target_power_48;
+	/* Power level for 54Mbit rate or
+	 * 11Mbit rate */
+	u16	target_power_54;
+};
+
+/* Power edges for conformance test limits */
+struct ath5k_edge_power {
+	u16 freq;
+	u16 edge; /* in half dBm */
+	int flag;
+};
+
+/* EEPROM calibration data */
+struct ath5k_eeprom_info {
+
+	/* Header information */
+	u16	ee_magic;
+	u16	ee_protect;
+	u16	ee_regdomain;
+	u16	ee_version;
+	u16	ee_header;
+	u16	ee_ant_gain;
+	u16	ee_misc0;
+	u16	ee_misc1;
+	u16	ee_misc2;
+	u16	ee_misc3;
+	u16	ee_misc4;
+	u16	ee_misc5;
+	u16	ee_misc6;
+	u16	ee_cck_ofdm_gain_delta;
+	u16	ee_cck_ofdm_power_delta;
+	u16	ee_scaled_cck_delta;
+
+	/* RF Calibration settings (reset, rfregs) */
+	u16	ee_i_cal[AR5K_EEPROM_N_MODES];
+	u16	ee_q_cal[AR5K_EEPROM_N_MODES];
+	u16	ee_fixed_bias[AR5K_EEPROM_N_MODES];
+	u16	ee_turbo_max_power[AR5K_EEPROM_N_MODES];
+	u16	ee_xr_power[AR5K_EEPROM_N_MODES];
+	u16	ee_switch_settling[AR5K_EEPROM_N_MODES];
+	u16	ee_atn_tx_rx[AR5K_EEPROM_N_MODES];
+	u16	ee_ant_control[AR5K_EEPROM_N_MODES][AR5K_EEPROM_N_PCDAC];
+	u16	ee_ob[AR5K_EEPROM_N_MODES][AR5K_EEPROM_N_OBDB];
+	u16	ee_db[AR5K_EEPROM_N_MODES][AR5K_EEPROM_N_OBDB];
+	u16	ee_tx_end2xlna_enable[AR5K_EEPROM_N_MODES];
+	u16	ee_tx_end2xpa_disable[AR5K_EEPROM_N_MODES];
+	u16	ee_tx_frm2xpa_enable[AR5K_EEPROM_N_MODES];
+	u16	ee_thr_62[AR5K_EEPROM_N_MODES];
+	u16	ee_xlna_gain[AR5K_EEPROM_N_MODES];
+	u16	ee_xpd[AR5K_EEPROM_N_MODES];
+	u16	ee_x_gain[AR5K_EEPROM_N_MODES];
+	u16	ee_i_gain[AR5K_EEPROM_N_MODES];
+	u16	ee_margin_tx_rx[AR5K_EEPROM_N_MODES];
+	u16	ee_switch_settling_turbo[AR5K_EEPROM_N_MODES];
+	u16	ee_margin_tx_rx_turbo[AR5K_EEPROM_N_MODES];
+	u16	ee_atn_tx_rx_turbo[AR5K_EEPROM_N_MODES];
+
+	/* Power calibration data */
+	u16	ee_false_detect[AR5K_EEPROM_N_MODES];
+
+	/* Number of pd gain curves per mode */
+	u8	ee_pd_gains[AR5K_EEPROM_N_MODES];
+	/* Back mapping pdcurve number -> pdcurve index in pd->pd_curves */
+	u8	ee_pdc_to_idx[AR5K_EEPROM_N_MODES][AR5K_EEPROM_N_PD_GAINS];
+
+	u8	ee_n_piers[AR5K_EEPROM_N_MODES];
+	struct ath5k_chan_pcal_info	ee_pwr_cal_a[AR5K_EEPROM_N_5GHZ_CHAN];
+	struct ath5k_chan_pcal_info	ee_pwr_cal_b[AR5K_EEPROM_N_2GHZ_CHAN_MAX];
+	struct ath5k_chan_pcal_info	ee_pwr_cal_g[AR5K_EEPROM_N_2GHZ_CHAN_MAX];
+
+	/* Per rate target power levels */
+	u8	ee_rate_target_pwr_num[AR5K_EEPROM_N_MODES];
+	struct ath5k_rate_pcal_info	ee_rate_tpwr_a[AR5K_EEPROM_N_5GHZ_CHAN];
+	struct ath5k_rate_pcal_info	ee_rate_tpwr_b[AR5K_EEPROM_N_2GHZ_CHAN_MAX];
+	struct ath5k_rate_pcal_info	ee_rate_tpwr_g[AR5K_EEPROM_N_2GHZ_CHAN_MAX];
+
+	/* Conformance test limits (Unused) */
+	u8	ee_ctls;
+	u8	ee_ctl[AR5K_EEPROM_MAX_CTLS];
+	struct ath5k_edge_power ee_ctl_pwr[AR5K_EEPROM_N_EDGES * AR5K_EEPROM_MAX_CTLS];
+
+	/* Noise Floor Calibration settings */
+	s16	ee_noise_floor_thr[AR5K_EEPROM_N_MODES];
+	s8	ee_adc_desired_size[AR5K_EEPROM_N_MODES];
+	s8	ee_pga_desired_size[AR5K_EEPROM_N_MODES];
+	s8	ee_adc_desired_size_turbo[AR5K_EEPROM_N_MODES];
+	s8	ee_pga_desired_size_turbo[AR5K_EEPROM_N_MODES];
+	s8	ee_pd_gain_overlap;
+
+	u32	ee_antenna[AR5K_EEPROM_N_MODES][AR5K_ANT_MAX];
+};
+

src/drivers/net/ath5k/rfgain.h

@@ -0,0 +1,516 @@
+/*
+ * RF Gain optimization
+ *
+ * Copyright (c) 2004-2009 Reyk Floeter <reyk@openbsd.org>
+ * Copyright (c) 2006-2009 Nick Kossifidis <mickflemm@gmail.com>
+ *
+ * Permission to use, copy, modify, and 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.
+ *
+ */
+
+/*
+ * Mode-specific RF Gain table (64bytes) for RF5111/5112
+ * (RF5110 only comes with AR5210 and only supports a/turbo a mode so initial
+ * RF Gain values are included in AR5K_AR5210_INI)
+ */
+struct ath5k_ini_rfgain {
+	u16	rfg_register;	/* RF Gain register address */
+	u32	rfg_value[2];	/* [freq (see below)] */
+};
+
+/* Initial RF Gain settings for RF5111 */
+static const struct ath5k_ini_rfgain rfgain_5111[] = {
+	/*			      5Ghz	2Ghz	*/
+	{ AR5K_RF_GAIN(0),	{ 0x000001a9, 0x00000000 } },
+	{ AR5K_RF_GAIN(1),	{ 0x000001e9, 0x00000040 } },
+	{ AR5K_RF_GAIN(2),	{ 0x00000029, 0x00000080 } },
+	{ AR5K_RF_GAIN(3),	{ 0x00000069, 0x00000150 } },
+	{ AR5K_RF_GAIN(4),	{ 0x00000199, 0x00000190 } },
+	{ AR5K_RF_GAIN(5),	{ 0x000001d9, 0x000001d0 } },
+	{ AR5K_RF_GAIN(6),	{ 0x00000019, 0x00000010 } },
+	{ AR5K_RF_GAIN(7),	{ 0x00000059, 0x00000044 } },
+	{ AR5K_RF_GAIN(8),	{ 0x00000099, 0x00000084 } },
+	{ AR5K_RF_GAIN(9),	{ 0x000001a5, 0x00000148 } },
+	{ AR5K_RF_GAIN(10),	{ 0x000001e5, 0x00000188 } },
+	{ AR5K_RF_GAIN(11),	{ 0x00000025, 0x000001c8 } },
+	{ AR5K_RF_GAIN(12),	{ 0x000001c8, 0x00000014 } },
+	{ AR5K_RF_GAIN(13),	{ 0x00000008, 0x00000042 } },
+	{ AR5K_RF_GAIN(14),	{ 0x00000048, 0x00000082 } },
+	{ AR5K_RF_GAIN(15),	{ 0x00000088, 0x00000178 } },
+	{ AR5K_RF_GAIN(16),	{ 0x00000198, 0x000001b8 } },
+	{ AR5K_RF_GAIN(17),	{ 0x000001d8, 0x000001f8 } },
+	{ AR5K_RF_GAIN(18),	{ 0x00000018, 0x00000012 } },
+	{ AR5K_RF_GAIN(19),	{ 0x00000058, 0x00000052 } },
+	{ AR5K_RF_GAIN(20),	{ 0x00000098, 0x00000092 } },
+	{ AR5K_RF_GAIN(21),	{ 0x000001a4, 0x0000017c } },
+	{ AR5K_RF_GAIN(22),	{ 0x000001e4, 0x000001bc } },
+	{ AR5K_RF_GAIN(23),	{ 0x00000024, 0x000001fc } },
+	{ AR5K_RF_GAIN(24),	{ 0x00000064, 0x0000000a } },
+	{ AR5K_RF_GAIN(25),	{ 0x000000a4, 0x0000004a } },
+	{ AR5K_RF_GAIN(26),	{ 0x000000e4, 0x0000008a } },
+	{ AR5K_RF_GAIN(27),	{ 0x0000010a, 0x0000015a } },
+	{ AR5K_RF_GAIN(28),	{ 0x0000014a, 0x0000019a } },
+	{ AR5K_RF_GAIN(29),	{ 0x0000018a, 0x000001da } },
+	{ AR5K_RF_GAIN(30),	{ 0x000001ca, 0x0000000e } },
+	{ AR5K_RF_GAIN(31),	{ 0x0000000a, 0x0000004e } },
+	{ AR5K_RF_GAIN(32),	{ 0x0000004a, 0x0000008e } },
+	{ AR5K_RF_GAIN(33),	{ 0x0000008a, 0x0000015e } },
+	{ AR5K_RF_GAIN(34),	{ 0x000001ba, 0x0000019e } },
+	{ AR5K_RF_GAIN(35),	{ 0x000001fa, 0x000001de } },
+	{ AR5K_RF_GAIN(36),	{ 0x0000003a, 0x00000009 } },
+	{ AR5K_RF_GAIN(37),	{ 0x0000007a, 0x00000049 } },
+	{ AR5K_RF_GAIN(38),	{ 0x00000186, 0x00000089 } },
+	{ AR5K_RF_GAIN(39),	{ 0x000001c6, 0x00000179 } },
+	{ AR5K_RF_GAIN(40),	{ 0x00000006, 0x000001b9 } },
+	{ AR5K_RF_GAIN(41),	{ 0x00000046, 0x000001f9 } },
+	{ AR5K_RF_GAIN(42),	{ 0x00000086, 0x00000039 } },
+	{ AR5K_RF_GAIN(43),	{ 0x000000c6, 0x00000079 } },
+	{ AR5K_RF_GAIN(44),	{ 0x000000c6, 0x000000b9 } },
+	{ AR5K_RF_GAIN(45),	{ 0x000000c6, 0x000001bd } },
+	{ AR5K_RF_GAIN(46),	{ 0x000000c6, 0x000001fd } },
+	{ AR5K_RF_GAIN(47),	{ 0x000000c6, 0x0000003d } },
+	{ AR5K_RF_GAIN(48),	{ 0x000000c6, 0x0000007d } },
+	{ AR5K_RF_GAIN(49),	{ 0x000000c6, 0x000000bd } },
+	{ AR5K_RF_GAIN(50),	{ 0x000000c6, 0x000000fd } },
+	{ AR5K_RF_GAIN(51),	{ 0x000000c6, 0x000000fd } },
+	{ AR5K_RF_GAIN(52),	{ 0x000000c6, 0x000000fd } },
+	{ AR5K_RF_GAIN(53),	{ 0x000000c6, 0x000000fd } },
+	{ AR5K_RF_GAIN(54),	{ 0x000000c6, 0x000000fd } },
+	{ AR5K_RF_GAIN(55),	{ 0x000000c6, 0x000000fd } },
+	{ AR5K_RF_GAIN(56),	{ 0x000000c6, 0x000000fd } },
+	{ AR5K_RF_GAIN(57),	{ 0x000000c6, 0x000000fd } },
+	{ AR5K_RF_GAIN(58),	{ 0x000000c6, 0x000000fd } },
+	{ AR5K_RF_GAIN(59),	{ 0x000000c6, 0x000000fd } },
+	{ AR5K_RF_GAIN(60),	{ 0x000000c6, 0x000000fd } },
+	{ AR5K_RF_GAIN(61),	{ 0x000000c6, 0x000000fd } },
+	{ AR5K_RF_GAIN(62),	{ 0x000000c6, 0x000000fd } },
+	{ AR5K_RF_GAIN(63),	{ 0x000000c6, 0x000000fd } },
+};
+
+/* Initial RF Gain settings for RF5112 */
+static const struct ath5k_ini_rfgain rfgain_5112[] = {
+	/*			      5Ghz	2Ghz	*/
+	{ AR5K_RF_GAIN(0),	{ 0x00000007, 0x00000007 } },
+	{ AR5K_RF_GAIN(1),	{ 0x00000047, 0x00000047 } },
+	{ AR5K_RF_GAIN(2),	{ 0x00000087, 0x00000087 } },
+	{ AR5K_RF_GAIN(3),	{ 0x000001a0, 0x000001a0 } },
+	{ AR5K_RF_GAIN(4),	{ 0x000001e0, 0x000001e0 } },
+	{ AR5K_RF_GAIN(5),	{ 0x00000020, 0x00000020 } },
+	{ AR5K_RF_GAIN(6),	{ 0x00000060, 0x00000060 } },
+	{ AR5K_RF_GAIN(7),	{ 0x000001a1, 0x000001a1 } },
+	{ AR5K_RF_GAIN(8),	{ 0x000001e1, 0x000001e1 } },
+	{ AR5K_RF_GAIN(9),	{ 0x00000021, 0x00000021 } },
+	{ AR5K_RF_GAIN(10),	{ 0x00000061, 0x00000061 } },
+	{ AR5K_RF_GAIN(11),	{ 0x00000162, 0x00000162 } },
+	{ AR5K_RF_GAIN(12),	{ 0x000001a2, 0x000001a2 } },
+	{ AR5K_RF_GAIN(13),	{ 0x000001e2, 0x000001e2 } },
+	{ AR5K_RF_GAIN(14),	{ 0x00000022, 0x00000022 } },
+	{ AR5K_RF_GAIN(15),	{ 0x00000062, 0x00000062 } },
+	{ AR5K_RF_GAIN(16),	{ 0x00000163, 0x00000163 } },
+	{ AR5K_RF_GAIN(17),	{ 0x000001a3, 0x000001a3 } },
+	{ AR5K_RF_GAIN(18),	{ 0x000001e3, 0x000001e3 } },
+	{ AR5K_RF_GAIN(19),	{ 0x00000023, 0x00000023 } },
+	{ AR5K_RF_GAIN(20),	{ 0x00000063, 0x00000063 } },
+	{ AR5K_RF_GAIN(21),	{ 0x00000184, 0x00000184 } },
+	{ AR5K_RF_GAIN(22),	{ 0x000001c4, 0x000001c4 } },
+	{ AR5K_RF_GAIN(23),	{ 0x00000004, 0x00000004 } },
+	{ AR5K_RF_GAIN(24),	{ 0x000001ea, 0x0000000b } },
+	{ AR5K_RF_GAIN(25),	{ 0x0000002a, 0x0000004b } },
+	{ AR5K_RF_GAIN(26),	{ 0x0000006a, 0x0000008b } },
+	{ AR5K_RF_GAIN(27),	{ 0x000000aa, 0x000001ac } },
+	{ AR5K_RF_GAIN(28),	{ 0x000001ab, 0x000001ec } },
+	{ AR5K_RF_GAIN(29),	{ 0x000001eb, 0x0000002c } },
+	{ AR5K_RF_GAIN(30),	{ 0x0000002b, 0x00000012 } },
+	{ AR5K_RF_GAIN(31),	{ 0x0000006b, 0x00000052 } },
+	{ AR5K_RF_GAIN(32),	{ 0x000000ab, 0x00000092 } },
+	{ AR5K_RF_GAIN(33),	{ 0x000001ac, 0x00000193 } },
+	{ AR5K_RF_GAIN(34),	{ 0x000001ec, 0x000001d3 } },
+	{ AR5K_RF_GAIN(35),	{ 0x0000002c, 0x00000013 } },
+	{ AR5K_RF_GAIN(36),	{ 0x0000003a, 0x00000053 } },
+	{ AR5K_RF_GAIN(37),	{ 0x0000007a, 0x00000093 } },
+	{ AR5K_RF_GAIN(38),	{ 0x000000ba, 0x00000194 } },
+	{ AR5K_RF_GAIN(39),	{ 0x000001bb, 0x000001d4 } },
+	{ AR5K_RF_GAIN(40),	{ 0x000001fb, 0x00000014 } },
+	{ AR5K_RF_GAIN(41),	{ 0x0000003b, 0x0000003a } },
+	{ AR5K_RF_GAIN(42),	{ 0x0000007b, 0x0000007a } },
+	{ AR5K_RF_GAIN(43),	{ 0x000000bb, 0x000000ba } },
+	{ AR5K_RF_GAIN(44),	{ 0x000001bc, 0x000001bb } },
+	{ AR5K_RF_GAIN(45),	{ 0x000001fc, 0x000001fb } },
+	{ AR5K_RF_GAIN(46),	{ 0x0000003c, 0x0000003b } },
+	{ AR5K_RF_GAIN(47),	{ 0x0000007c, 0x0000007b } },
+	{ AR5K_RF_GAIN(48),	{ 0x000000bc, 0x000000bb } },
+	{ AR5K_RF_GAIN(49),	{ 0x000000fc, 0x000001bc } },
+	{ AR5K_RF_GAIN(50),	{ 0x000000fc, 0x000001fc } },
+	{ AR5K_RF_GAIN(51),	{ 0x000000fc, 0x0000003c } },
+	{ AR5K_RF_GAIN(52),	{ 0x000000fc, 0x0000007c } },
+	{ AR5K_RF_GAIN(53),	{ 0x000000fc, 0x000000bc } },
+	{ AR5K_RF_GAIN(54),	{ 0x000000fc, 0x000000fc } },
+	{ AR5K_RF_GAIN(55),	{ 0x000000fc, 0x000000fc } },
+	{ AR5K_RF_GAIN(56),	{ 0x000000fc, 0x000000fc } },
+	{ AR5K_RF_GAIN(57),	{ 0x000000fc, 0x000000fc } },
+	{ AR5K_RF_GAIN(58),	{ 0x000000fc, 0x000000fc } },
+	{ AR5K_RF_GAIN(59),	{ 0x000000fc, 0x000000fc } },
+	{ AR5K_RF_GAIN(60),	{ 0x000000fc, 0x000000fc } },
+	{ AR5K_RF_GAIN(61),	{ 0x000000fc, 0x000000fc } },
+	{ AR5K_RF_GAIN(62),	{ 0x000000fc, 0x000000fc } },
+	{ AR5K_RF_GAIN(63),	{ 0x000000fc, 0x000000fc } },
+};
+
+/* Initial RF Gain settings for RF2413 */
+static const struct ath5k_ini_rfgain rfgain_2413[] = {
+	{ AR5K_RF_GAIN(0),	{ 0x00000000, 0x00000000 } },
+	{ AR5K_RF_GAIN(1),	{ 0x00000000, 0x00000040 } },
+	{ AR5K_RF_GAIN(2),	{ 0x00000000, 0x00000080 } },
+	{ AR5K_RF_GAIN(3),	{ 0x00000000, 0x00000181 } },
+	{ AR5K_RF_GAIN(4),	{ 0x00000000, 0x000001c1 } },
+	{ AR5K_RF_GAIN(5),	{ 0x00000000, 0x00000001 } },
+	{ AR5K_RF_GAIN(6),	{ 0x00000000, 0x00000041 } },
+	{ AR5K_RF_GAIN(7),	{ 0x00000000, 0x00000081 } },
+	{ AR5K_RF_GAIN(8),	{ 0x00000000, 0x00000168 } },
+	{ AR5K_RF_GAIN(9),	{ 0x00000000, 0x000001a8 } },
+	{ AR5K_RF_GAIN(10),	{ 0x00000000, 0x000001e8 } },
+	{ AR5K_RF_GAIN(11),	{ 0x00000000, 0x00000028 } },
+	{ AR5K_RF_GAIN(12),	{ 0x00000000, 0x00000068 } },
+	{ AR5K_RF_GAIN(13),	{ 0x00000000, 0x00000189 } },
+	{ AR5K_RF_GAIN(14),	{ 0x00000000, 0x000001c9 } },
+	{ AR5K_RF_GAIN(15),	{ 0x00000000, 0x00000009 } },
+	{ AR5K_RF_GAIN(16),	{ 0x00000000, 0x00000049 } },
+	{ AR5K_RF_GAIN(17),	{ 0x00000000, 0x00000089 } },
+	{ AR5K_RF_GAIN(18),	{ 0x00000000, 0x00000190 } },
+	{ AR5K_RF_GAIN(19),	{ 0x00000000, 0x000001d0 } },
+	{ AR5K_RF_GAIN(20),	{ 0x00000000, 0x00000010 } },
+	{ AR5K_RF_GAIN(21),	{ 0x00000000, 0x00000050 } },
+	{ AR5K_RF_GAIN(22),	{ 0x00000000, 0x00000090 } },
+	{ AR5K_RF_GAIN(23),	{ 0x00000000, 0x00000191 } },
+	{ AR5K_RF_GAIN(24),	{ 0x00000000, 0x000001d1 } },
+	{ AR5K_RF_GAIN(25),	{ 0x00000000, 0x00000011 } },
+	{ AR5K_RF_GAIN(26),	{ 0x00000000, 0x00000051 } },
+	{ AR5K_RF_GAIN(27),	{ 0x00000000, 0x00000091 } },
+	{ AR5K_RF_GAIN(28),	{ 0x00000000, 0x00000178 } },
+	{ AR5K_RF_GAIN(29),	{ 0x00000000, 0x000001b8 } },
+	{ AR5K_RF_GAIN(30),	{ 0x00000000, 0x000001f8 } },
+	{ AR5K_RF_GAIN(31),	{ 0x00000000, 0x00000038 } },
+	{ AR5K_RF_GAIN(32),	{ 0x00000000, 0x00000078 } },
+	{ AR5K_RF_GAIN(33),	{ 0x00000000, 0x00000199 } },
+	{ AR5K_RF_GAIN(34),	{ 0x00000000, 0x000001d9 } },
+	{ AR5K_RF_GAIN(35),	{ 0x00000000, 0x00000019 } },
+	{ AR5K_RF_GAIN(36),	{ 0x00000000, 0x00000059 } },
+	{ AR5K_RF_GAIN(37),	{ 0x00000000, 0x00000099 } },
+	{ AR5K_RF_GAIN(38),	{ 0x00000000, 0x000000d9 } },
+	{ AR5K_RF_GAIN(39),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(40),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(41),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(42),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(43),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(44),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(45),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(46),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(47),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(48),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(49),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(50),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(51),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(52),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(53),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(54),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(55),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(56),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(57),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(58),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(59),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(60),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(61),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(62),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(63),	{ 0x00000000, 0x000000f9 } },
+};
+
+/* Initial RF Gain settings for AR2316 */
+static const struct ath5k_ini_rfgain rfgain_2316[] = {
+	{ AR5K_RF_GAIN(0),	{ 0x00000000, 0x00000000 } },
+	{ AR5K_RF_GAIN(1),	{ 0x00000000, 0x00000040 } },
+	{ AR5K_RF_GAIN(2),	{ 0x00000000, 0x00000080 } },
+	{ AR5K_RF_GAIN(3),	{ 0x00000000, 0x000000c0 } },
+	{ AR5K_RF_GAIN(4),	{ 0x00000000, 0x000000e0 } },
+	{ AR5K_RF_GAIN(5),	{ 0x00000000, 0x000000e0 } },
+	{ AR5K_RF_GAIN(6),	{ 0x00000000, 0x00000128 } },
+	{ AR5K_RF_GAIN(7),	{ 0x00000000, 0x00000128 } },
+	{ AR5K_RF_GAIN(8),	{ 0x00000000, 0x00000128 } },
+	{ AR5K_RF_GAIN(9),	{ 0x00000000, 0x00000168 } },
+	{ AR5K_RF_GAIN(10),	{ 0x00000000, 0x000001a8 } },
+	{ AR5K_RF_GAIN(11),	{ 0x00000000, 0x000001e8 } },
+	{ AR5K_RF_GAIN(12),	{ 0x00000000, 0x00000028 } },
+	{ AR5K_RF_GAIN(13),	{ 0x00000000, 0x00000068 } },
+	{ AR5K_RF_GAIN(14),	{ 0x00000000, 0x000000a8 } },
+	{ AR5K_RF_GAIN(15),	{ 0x00000000, 0x000000e8 } },
+	{ AR5K_RF_GAIN(16),	{ 0x00000000, 0x000000e8 } },
+	{ AR5K_RF_GAIN(17),	{ 0x00000000, 0x00000130 } },
+	{ AR5K_RF_GAIN(18),	{ 0x00000000, 0x00000130 } },
+	{ AR5K_RF_GAIN(19),	{ 0x00000000, 0x00000170 } },
+	{ AR5K_RF_GAIN(20),	{ 0x00000000, 0x000001b0 } },
+	{ AR5K_RF_GAIN(21),	{ 0x00000000, 0x000001f0 } },
+	{ AR5K_RF_GAIN(22),	{ 0x00000000, 0x00000030 } },
+	{ AR5K_RF_GAIN(23),	{ 0x00000000, 0x00000070 } },
+	{ AR5K_RF_GAIN(24),	{ 0x00000000, 0x000000b0 } },
+	{ AR5K_RF_GAIN(25),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(26),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(27),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(28),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(29),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(30),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(31),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(32),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(33),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(34),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(35),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(36),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(37),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(38),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(39),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(40),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(41),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(42),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(43),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(44),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(45),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(46),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(47),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(48),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(49),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(50),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(51),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(52),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(53),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(54),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(55),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(56),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(57),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(58),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(59),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(60),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(61),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(62),	{ 0x00000000, 0x000000f0 } },
+	{ AR5K_RF_GAIN(63),	{ 0x00000000, 0x000000f0 } },
+};
+
+
+/* Initial RF Gain settings for RF5413 */
+static const struct ath5k_ini_rfgain rfgain_5413[] = {
+	/*			      5Ghz	2Ghz	*/
+	{ AR5K_RF_GAIN(0),	{ 0x00000000, 0x00000000 } },
+	{ AR5K_RF_GAIN(1),	{ 0x00000040, 0x00000040 } },
+	{ AR5K_RF_GAIN(2),	{ 0x00000080, 0x00000080 } },
+	{ AR5K_RF_GAIN(3),	{ 0x000001a1, 0x00000161 } },
+	{ AR5K_RF_GAIN(4),	{ 0x000001e1, 0x000001a1 } },
+	{ AR5K_RF_GAIN(5),	{ 0x00000021, 0x000001e1 } },
+	{ AR5K_RF_GAIN(6),	{ 0x00000061, 0x00000021 } },
+	{ AR5K_RF_GAIN(7),	{ 0x00000188, 0x00000061 } },
+	{ AR5K_RF_GAIN(8),	{ 0x000001c8, 0x00000188 } },
+	{ AR5K_RF_GAIN(9),	{ 0x00000008, 0x000001c8 } },
+	{ AR5K_RF_GAIN(10),	{ 0x00000048, 0x00000008 } },
+	{ AR5K_RF_GAIN(11),	{ 0x00000088, 0x00000048 } },
+	{ AR5K_RF_GAIN(12),	{ 0x000001a9, 0x00000088 } },
+	{ AR5K_RF_GAIN(13),	{ 0x000001e9, 0x00000169 } },
+	{ AR5K_RF_GAIN(14),	{ 0x00000029, 0x000001a9 } },
+	{ AR5K_RF_GAIN(15),	{ 0x00000069, 0x000001e9 } },
+	{ AR5K_RF_GAIN(16),	{ 0x000001d0, 0x00000029 } },
+	{ AR5K_RF_GAIN(17),	{ 0x00000010, 0x00000069 } },
+	{ AR5K_RF_GAIN(18),	{ 0x00000050, 0x00000190 } },
+	{ AR5K_RF_GAIN(19),	{ 0x00000090, 0x000001d0 } },
+	{ AR5K_RF_GAIN(20),	{ 0x000001b1, 0x00000010 } },
+	{ AR5K_RF_GAIN(21),	{ 0x000001f1, 0x00000050 } },
+	{ AR5K_RF_GAIN(22),	{ 0x00000031, 0x00000090 } },
+	{ AR5K_RF_GAIN(23),	{ 0x00000071, 0x00000171 } },
+	{ AR5K_RF_GAIN(24),	{ 0x000001b8, 0x000001b1 } },
+	{ AR5K_RF_GAIN(25),	{ 0x000001f8, 0x000001f1 } },
+	{ AR5K_RF_GAIN(26),	{ 0x00000038, 0x00000031 } },
+	{ AR5K_RF_GAIN(27),	{ 0x00000078, 0x00000071 } },
+	{ AR5K_RF_GAIN(28),	{ 0x00000199, 0x00000198 } },
+	{ AR5K_RF_GAIN(29),	{ 0x000001d9, 0x000001d8 } },
+	{ AR5K_RF_GAIN(30),	{ 0x00000019, 0x00000018 } },
+	{ AR5K_RF_GAIN(31),	{ 0x00000059, 0x00000058 } },
+	{ AR5K_RF_GAIN(32),	{ 0x00000099, 0x00000098 } },
+	{ AR5K_RF_GAIN(33),	{ 0x000000d9, 0x00000179 } },
+	{ AR5K_RF_GAIN(34),	{ 0x000000f9, 0x000001b9 } },
+	{ AR5K_RF_GAIN(35),	{ 0x000000f9, 0x000001f9 } },
+	{ AR5K_RF_GAIN(36),	{ 0x000000f9, 0x00000039 } },
+	{ AR5K_RF_GAIN(37),	{ 0x000000f9, 0x00000079 } },
+	{ AR5K_RF_GAIN(38),	{ 0x000000f9, 0x000000b9 } },
+	{ AR5K_RF_GAIN(39),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(40),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(41),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(42),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(43),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(44),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(45),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(46),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(47),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(48),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(49),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(50),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(51),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(52),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(53),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(54),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(55),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(56),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(57),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(58),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(59),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(60),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(61),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(62),	{ 0x000000f9, 0x000000f9 } },
+	{ AR5K_RF_GAIN(63),	{ 0x000000f9, 0x000000f9 } },
+};
+
+
+/* Initial RF Gain settings for RF2425 */
+static const struct ath5k_ini_rfgain rfgain_2425[] = {
+	{ AR5K_RF_GAIN(0),	{ 0x00000000, 0x00000000 } },
+	{ AR5K_RF_GAIN(1),	{ 0x00000000, 0x00000040 } },
+	{ AR5K_RF_GAIN(2),	{ 0x00000000, 0x00000080 } },
+	{ AR5K_RF_GAIN(3),	{ 0x00000000, 0x00000181 } },
+	{ AR5K_RF_GAIN(4),	{ 0x00000000, 0x000001c1 } },
+	{ AR5K_RF_GAIN(5),	{ 0x00000000, 0x00000001 } },
+	{ AR5K_RF_GAIN(6),	{ 0x00000000, 0x00000041 } },
+	{ AR5K_RF_GAIN(7),	{ 0x00000000, 0x00000081 } },
+	{ AR5K_RF_GAIN(8),	{ 0x00000000, 0x00000188 } },
+	{ AR5K_RF_GAIN(9),	{ 0x00000000, 0x000001c8 } },
+	{ AR5K_RF_GAIN(10),	{ 0x00000000, 0x00000008 } },
+	{ AR5K_RF_GAIN(11),	{ 0x00000000, 0x00000048 } },
+	{ AR5K_RF_GAIN(12),	{ 0x00000000, 0x00000088 } },
+	{ AR5K_RF_GAIN(13),	{ 0x00000000, 0x00000189 } },
+	{ AR5K_RF_GAIN(14),	{ 0x00000000, 0x000001c9 } },
+	{ AR5K_RF_GAIN(15),	{ 0x00000000, 0x00000009 } },
+	{ AR5K_RF_GAIN(16),	{ 0x00000000, 0x00000049 } },
+	{ AR5K_RF_GAIN(17),	{ 0x00000000, 0x00000089 } },
+	{ AR5K_RF_GAIN(18),	{ 0x00000000, 0x000001b0 } },
+	{ AR5K_RF_GAIN(19),	{ 0x00000000, 0x000001f0 } },
+	{ AR5K_RF_GAIN(20),	{ 0x00000000, 0x00000030 } },
+	{ AR5K_RF_GAIN(21),	{ 0x00000000, 0x00000070 } },
+	{ AR5K_RF_GAIN(22),	{ 0x00000000, 0x00000171 } },
+	{ AR5K_RF_GAIN(23),	{ 0x00000000, 0x000001b1 } },
+	{ AR5K_RF_GAIN(24),	{ 0x00000000, 0x000001f1 } },
+	{ AR5K_RF_GAIN(25),	{ 0x00000000, 0x00000031 } },
+	{ AR5K_RF_GAIN(26),	{ 0x00000000, 0x00000071 } },
+	{ AR5K_RF_GAIN(27),	{ 0x00000000, 0x000001b8 } },
+	{ AR5K_RF_GAIN(28),	{ 0x00000000, 0x000001f8 } },
+	{ AR5K_RF_GAIN(29),	{ 0x00000000, 0x00000038 } },
+	{ AR5K_RF_GAIN(30),	{ 0x00000000, 0x00000078 } },
+	{ AR5K_RF_GAIN(31),	{ 0x00000000, 0x000000b8 } },
+	{ AR5K_RF_GAIN(32),	{ 0x00000000, 0x000001b9 } },
+	{ AR5K_RF_GAIN(33),	{ 0x00000000, 0x000001f9 } },
+	{ AR5K_RF_GAIN(34),	{ 0x00000000, 0x00000039 } },
+	{ AR5K_RF_GAIN(35),	{ 0x00000000, 0x00000079 } },
+	{ AR5K_RF_GAIN(36),	{ 0x00000000, 0x000000b9 } },
+	{ AR5K_RF_GAIN(37),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(38),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(39),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(40),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(41),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(42),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(43),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(44),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(45),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(46),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(47),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(48),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(49),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(50),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(51),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(52),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(53),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(54),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(55),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(56),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(57),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(58),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(59),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(60),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(61),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(62),	{ 0x00000000, 0x000000f9 } },
+	{ AR5K_RF_GAIN(63),	{ 0x00000000, 0x000000f9 } },
+};
+
+#define AR5K_GAIN_CRN_FIX_BITS_5111		4
+#define AR5K_GAIN_CRN_FIX_BITS_5112		7
+#define AR5K_GAIN_CRN_MAX_FIX_BITS		AR5K_GAIN_CRN_FIX_BITS_5112
+#define AR5K_GAIN_DYN_ADJUST_HI_MARGIN		15
+#define AR5K_GAIN_DYN_ADJUST_LO_MARGIN		20
+#define AR5K_GAIN_CCK_PROBE_CORR		5
+#define AR5K_GAIN_CCK_OFDM_GAIN_DELTA		15
+#define AR5K_GAIN_STEP_COUNT			10
+
+/* Check if our current measurement is inside our
+ * current variable attenuation window */
+#define AR5K_GAIN_CHECK_ADJUST(_g) 		\
+	((_g)->g_current <= (_g)->g_low || (_g)->g_current >= (_g)->g_high)
+
+struct ath5k_gain_opt_step {
+	s8				gos_param[AR5K_GAIN_CRN_MAX_FIX_BITS];
+	s8				gos_gain;
+};
+
+struct ath5k_gain_opt {
+	u8				go_default;
+	u8				go_steps_count;
+	const struct ath5k_gain_opt_step	go_step[AR5K_GAIN_STEP_COUNT];
+};
+
+/*
+ * Parameters on gos_param:
+ * 1) Tx clip PHY register
+ * 2) PWD 90 RF register
+ * 3) PWD 84 RF register
+ * 4) RFGainSel RF register
+ */
+static const struct ath5k_gain_opt rfgain_opt_5111 = {
+	4,
+	9,
+	{
+		{ { 4, 1, 1, 1 }, 6 },
+		{ { 4, 0, 1, 1 }, 4 },
+		{ { 3, 1, 1, 1 }, 3 },
+		{ { 4, 0, 0, 1 }, 1 },
+		{ { 4, 1, 1, 0 }, 0 },
+		{ { 4, 0, 1, 0 }, -2 },
+		{ { 3, 1, 1, 0 }, -3 },
+		{ { 4, 0, 0, 0 }, -4 },
+		{ { 2, 1, 1, 0 }, -6 }
+	}
+};
+
+/*
+ * Parameters on gos_param:
+ * 1) Mixgain ovr RF register
+ * 2) PWD 138 RF register
+ * 3) PWD 137 RF register
+ * 4) PWD 136 RF register
+ * 5) PWD 132 RF register
+ * 6) PWD 131 RF register
+ * 7) PWD 130 RF register
+ */
+static const struct ath5k_gain_opt rfgain_opt_5112 = {
+	1,
+	8,
+	{
+		{ { 3, 0, 0, 0, 0, 0, 0 }, 6 },
+		{ { 2, 0, 0, 0, 0, 0, 0 }, 0 },
+		{ { 1, 0, 0, 0, 0, 0, 0 }, -3 },
+		{ { 0, 0, 0, 0, 0, 0, 0 }, -6 },
+		{ { 0, 1, 1, 0, 0, 0, 0 }, -8 },
+		{ { 0, 1, 1, 0, 1, 1, 0 }, -10 },
+		{ { 0, 1, 0, 1, 1, 1, 0 }, -13 },
+		{ { 0, 1, 0, 1, 1, 0, 1 }, -16 },
+	}
+};
+

src/include/gpxe/errfile.h

@@ -112,6 +112,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 #define ERRFILE_b44		     ( ERRFILE_DRIVER | 0x004d0000 )
 #define ERRFILE_rtl818x		     ( ERRFILE_DRIVER | 0x004e0000 )
 #define ERRFILE_sky2                 ( ERRFILE_DRIVER | 0x004f0000 )
+#define ERRFILE_ath5k		     ( ERRFILE_DRIVER | 0x00500000 )
 
 #define ERRFILE_scsi		     ( ERRFILE_DRIVER | 0x00700000 )
 #define ERRFILE_arbel		     ( ERRFILE_DRIVER | 0x00710000 )