ath5k: Update reset code

 * Update reset and sync with HALs

 * Clean up eeprom settings and tweaking of initvals and
   put them on separate functions

 * Set/Restore 32KHz ref clk operation

 * Add some more documentation

 TODO: Spur mitigation, tpc, half/quarter rate, compression etc

 v2: Address comments from Bob and Felix and fix RSSI threshold bug
 introduced on the first version of the patch
Signed-off-by: NNick Kossifidis <mickflemm@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath5k/ath5k.h

@@ -222,6 +222,7 @@
 #endif
 
 /* Initial values */
+#define	AR5K_INIT_CYCRSSI_THR1			2
 #define AR5K_INIT_TX_LATENCY			502
 #define AR5K_INIT_USEC				39
 #define AR5K_INIT_USEC_TURBO			79
@@ -313,7 +314,7 @@ struct ath5k_srev_name {
 #define AR5K_SREV_AR5424	0x90 /* Condor */
 #define AR5K_SREV_AR5413	0xa4 /* Eagle lite */
 #define AR5K_SREV_AR5414	0xa0 /* Eagle */
-#define AR5K_SREV_AR2415	0xb0 /* Cobra */
+#define AR5K_SREV_AR2415	0xb0 /* Talon */
 #define AR5K_SREV_AR5416	0xc0 /* PCI-E */
 #define AR5K_SREV_AR5418	0xca /* PCI-E */
 #define AR5K_SREV_AR2425	0xe0 /* Swan */
@@ -331,7 +332,7 @@ struct ath5k_srev_name {
 #define	AR5K_SREV_RAD_2112B	0x46
 #define AR5K_SREV_RAD_2413	0x50
 #define AR5K_SREV_RAD_5413	0x60
-#define AR5K_SREV_RAD_2316	0x70
+#define AR5K_SREV_RAD_2316	0x70 /* Cobra SoC */
 #define AR5K_SREV_RAD_2317	0x80
 #define AR5K_SREV_RAD_5424	0xa0 /* Mostly same as 5413 */
 #define AR5K_SREV_RAD_2425	0xa2
@@ -340,7 +341,7 @@ struct ath5k_srev_name {
 #define AR5K_SREV_PHY_5211	0x30
 #define AR5K_SREV_PHY_5212	0x41
 #define	AR5K_SREV_PHY_5212A	0x42
-#define AR5K_SREV_PHY_2112B	0x43
+#define AR5K_SREV_PHY_5212B	0x43
 #define AR5K_SREV_PHY_2413	0x45
 #define AR5K_SREV_PHY_5413	0x61
 #define AR5K_SREV_PHY_2425	0x70
@@ -1030,7 +1031,6 @@ struct ath5k_hw {
 	u16			ah_phy_revision;
 	u16			ah_radio_5ghz_revision;
 	u16			ah_radio_2ghz_revision;
-	u32			ah_phy_spending;
 
 	enum ath5k_version	ah_version;
 	enum ath5k_radio	ah_radio;
@@ -1156,6 +1156,7 @@ extern void ath5k_hw_update_mib_counters(struct ath5k_hw *ah, struct ieee80211_l
 /* EEPROM access functions */
 extern int ath5k_eeprom_init(struct ath5k_hw *ah);
 extern int ath5k_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac);
+extern bool ath5k_eeprom_is_hb63(struct ath5k_hw *ah);
 
 /* Protocol Control Unit Functions */
 extern int ath5k_hw_set_opmode(struct ath5k_hw *ah);
@@ -1258,6 +1259,7 @@ extern int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, unsigned int power);
 
 /*
  * Translate usec to hw clock units
+ * TODO: Half/quarter rate
  */
 static inline unsigned int ath5k_hw_htoclock(unsigned int usec, bool turbo)
 {
@@ -1266,6 +1268,7 @@ static inline unsigned int ath5k_hw_htoclock(unsigned int usec, bool turbo)
 
 /*
  * Translate hw clock units to usec
+ * TODO: Half/quarter rate
  */
 static inline unsigned int ath5k_hw_clocktoh(unsigned int clock, bool turbo)
 {

drivers/net/wireless/ath5k/attach.c

@@ -169,7 +169,6 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version)
 		ah->ah_single_chip = false;
 		ah->ah_radio_2ghz_revision = ath5k_hw_radio_revision(ah,
 							CHANNEL_2GHZ);
-		ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5111;
 		break;
 	case AR5K_SREV_RAD_5112:
 	case AR5K_SREV_RAD_2112:
@@ -177,38 +176,31 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version)
 		ah->ah_single_chip = false;
 		ah->ah_radio_2ghz_revision = ath5k_hw_radio_revision(ah,
 							CHANNEL_2GHZ);
-		ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5112;
 		break;
 	case AR5K_SREV_RAD_2413:
 		ah->ah_radio = AR5K_RF2413;
 		ah->ah_single_chip = true;
-		ah->ah_phy_spending = AR5K_PHY_SPENDING_RF2413;
 		break;
 	case AR5K_SREV_RAD_5413:
 		ah->ah_radio = AR5K_RF5413;
 		ah->ah_single_chip = true;
-		ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5413;
 		break;
 	case AR5K_SREV_RAD_2316:
 		ah->ah_radio = AR5K_RF2316;
 		ah->ah_single_chip = true;
-		ah->ah_phy_spending = AR5K_PHY_SPENDING_RF2316;
 		break;
 	case AR5K_SREV_RAD_2317:
 		ah->ah_radio = AR5K_RF2317;
 		ah->ah_single_chip = true;
-		ah->ah_phy_spending = AR5K_PHY_SPENDING_RF2317;
 		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;
 			ah->ah_single_chip = true;
-			ah->ah_phy_spending = AR5K_PHY_SPENDING_RF2425;
 		} else {
 			ah->ah_radio = AR5K_RF5413;
 			ah->ah_single_chip = true;
-			ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5413;
 		}
 		break;
 	default:
@@ -227,29 +219,25 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version)
 			ah->ah_radio = AR5K_RF2425;
 			ah->ah_single_chip = true;
 			ah->ah_radio_5ghz_revision = AR5K_SREV_RAD_2425;
-			ah->ah_phy_spending = AR5K_PHY_SPENDING_RF2425;
 		} else if (srev == AR5K_SREV_AR5213A &&
-		ah->ah_phy_revision == AR5K_SREV_PHY_2112B) {
+		ah->ah_phy_revision == AR5K_SREV_PHY_5212B) {
 			ah->ah_radio = AR5K_RF5112;
 			ah->ah_single_chip = false;
-			ah->ah_radio_5ghz_revision = AR5K_SREV_RAD_2112B;
+			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 = true;
 			ah->ah_radio_5ghz_revision = AR5K_SREV_RAD_2316;
-			ah->ah_phy_spending = AR5K_PHY_SPENDING_RF2316;
 		} 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 = true;
 			ah->ah_radio_5ghz_revision = AR5K_SREV_RAD_5413;
-			ah->ah_phy_spending = AR5K_PHY_SPENDING_RF5413;
 		} 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 = true;
 			ah->ah_radio_5ghz_revision = AR5K_SREV_RAD_2413;
-			ah->ah_phy_spending = AR5K_PHY_SPENDING_RF2413;
 		} else {
 			ATH5K_ERR(sc, "Couldn't identify radio revision.\n");
 			ret = -ENODEV;

drivers/net/wireless/ath5k/eeprom.c

@@ -204,7 +204,7 @@ static int ath5k_eeprom_read_ants(struct ath5k_hw *ah, u32 *offset,
 
 	/* Get antenna modes */
 	ah->ah_antenna[mode][0] =
-	    (ee->ee_ant_control[mode][0] << 4) | 0x1;
+	    (ee->ee_ant_control[mode][0] << 4);
 	ah->ah_antenna[mode][AR5K_ANT_FIXED_A] =
 	     ee->ee_ant_control[mode][1] 	|
 	    (ee->ee_ant_control[mode][2] << 6) 	|
@@ -1412,6 +1412,7 @@ ath5k_eeprom_init(struct ath5k_hw *ah)
 
 	return 0;
 }
+
 /*
  * Read the MAC address from eeprom
  */
@@ -1448,3 +1449,14 @@ int ath5k_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac)
 	return 0;
 }
 
+bool ath5k_eeprom_is_hb63(struct ath5k_hw *ah)
+{
+	u16 data;
+
+	ath5k_hw_eeprom_read(ah, AR5K_EEPROM_IS_HB63, &data);
+
+	if ((ah->ah_mac_version == (AR5K_SREV_AR2425 >> 4)) && data)
+		return true;
+	else
+		return false;
+}

drivers/net/wireless/ath5k/eeprom.h

@@ -25,6 +25,7 @@
 #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 */

drivers/net/wireless/ath5k/reg.h

@@ -187,6 +187,7 @@
 #define AR5K_TXCFG_FRMPAD_DIS		0x00002000	/* [5211+] */
 #define AR5K_TXCFG_RDY_CBR_DIS		0x00004000	/* Ready time CBR disable [5211+] */
 #define AR5K_TXCFG_JUMBO_FRM_MODE	0x00008000	/* Jumbo frame mode [5211+] */
+#define	AR5K_TXCFG_DCU_DBL_BUF_DIS	0x00008000	/* Disable double buffering on DCU */
 #define AR5K_TXCFG_DCU_CACHING_DIS	0x00010000	/* Disable DCU caching */
 
 /*
@@ -753,7 +754,7 @@
  */
 #define AR5K_DCU_SEQNUM_BASE		0x1140
 #define	AR5K_DCU_SEQNUM_M		0x00000fff
-#define	AR5K_QUEUE_DFS_SEQNUM(_q)	AR5K_QUEUE_REG(AR5K_DCU_SEQNUM_BASE, _q)
+#define	AR5K_QUEUE_DCU_SEQNUM(_q)	AR5K_QUEUE_REG(AR5K_DCU_SEQNUM_BASE, _q)
 
 /*
  * DCU global IFS SIFS register
@@ -1467,7 +1468,7 @@
 #define AR5K_ADDAC_TEST_TRIG_PTY	0x00020000	/* Trigger polarity */
 #define AR5K_ADDAC_TEST_RXCONT		0x00040000	/* Continuous capture */
 #define AR5K_ADDAC_TEST_CAPTURE		0x00080000	/* Begin capture */
-#define AR5K_ADDAC_TEST_TST_ARM		0x00100000	/* Test ARM (Adaptive Radio Mode ?) */
+#define AR5K_ADDAC_TEST_TST_ARM		0x00100000	/* ARM rx buffer for capture */
 
 /*
  * Default antenna register [5211+]
@@ -1679,7 +1680,7 @@
  * TSF parameter register
  */
 #define AR5K_TSF_PARM			0x8104			/* Register Address */
-#define AR5K_TSF_PARM_INC_M		0x000000ff	/* Mask for TSF increment */
+#define AR5K_TSF_PARM_INC		0x000000ff	/* Mask for TSF increment */
 #define AR5K_TSF_PARM_INC_S		0
 
 /*
@@ -1691,7 +1692,7 @@
 #define AR5K_QOS_NOACK_BIT_OFFSET	0x00000070	/* ??? */
 #define AR5K_QOS_NOACK_BIT_OFFSET_S	4
 #define AR5K_QOS_NOACK_BYTE_OFFSET	0x00000180	/* ??? */
-#define AR5K_QOS_NOACK_BYTE_OFFSET_S	8
+#define AR5K_QOS_NOACK_BYTE_OFFSET_S	7
 
 /*
  * PHY error filter register
@@ -1850,15 +1851,14 @@
  * TST_2 (Misc config parameters)
  */
 #define	AR5K_PHY_TST2			0x9800			/* Register Address */
-#define AR5K_PHY_TST2_TRIG_SEL		0x00000001	/* Trigger select (?) (field ?) */
-#define AR5K_PHY_TST2_TRIG		0x00000010	/* Trigger (?) (field ?) */
-#define AR5K_PHY_TST2_CBUS_MODE		0x00000100	/* Cardbus mode (?) */
-/* bit reserved */
+#define AR5K_PHY_TST2_TRIG_SEL		0x00000007	/* Trigger select (?)*/
+#define AR5K_PHY_TST2_TRIG		0x00000010	/* Trigger (?) */
+#define AR5K_PHY_TST2_CBUS_MODE		0x00000060	/* Cardbus mode (?) */
 #define AR5K_PHY_TST2_CLK32		0x00000400	/* CLK_OUT is CLK32 (32Khz external) */
 #define AR5K_PHY_TST2_CHANCOR_DUMP_EN	0x00000800	/* Enable Chancor dump (?) */
 #define AR5K_PHY_TST2_EVEN_CHANCOR_DUMP	0x00001000	/* Even Chancor dump (?) */
 #define AR5K_PHY_TST2_RFSILENT_EN	0x00002000	/* Enable RFSILENT */
-#define AR5K_PHY_TST2_ALT_RFDATA	0x00004000	/* Alternate RFDATA (5-2GHz switch) */
+#define AR5K_PHY_TST2_ALT_RFDATA	0x00004000	/* Alternate RFDATA (5-2GHz switch ?) */
 #define AR5K_PHY_TST2_MINI_OBS_EN	0x00008000	/* Enable mini OBS (?) */
 #define AR5K_PHY_TST2_RX2_IS_RX5_INV	0x00010000	/* 2GHz rx path is the 5GHz path inverted (?) */
 #define AR5K_PHY_TST2_SLOW_CLK160	0x00020000	/* Slow CLK160 (?) */
@@ -1928,8 +1928,8 @@
 #define	AR5K_PHY_RF_CTL2_TXF2TXD_START_S	0
 
 #define AR5K_PHY_RF_CTL3		0x9828			/* Register Address */
-#define AR5K_PHY_RF_CTL3_TXE2XLNA_ON	0x0000000f	/* TX end to XLNA on */
-#define	AR5K_PHY_RF_CTL3_TXE2XLNA_ON_S	0
+#define AR5K_PHY_RF_CTL3_TXE2XLNA_ON	0x0000ff00	/* TX end to XLNA on */
+#define	AR5K_PHY_RF_CTL3_TXE2XLNA_ON_S	8
 
 #define	AR5K_PHY_ADC_CTL			0x982c
 #define	AR5K_PHY_ADC_CTL_INBUFGAIN_OFF		0x00000003
@@ -1963,7 +1963,7 @@
 #define	AR5K_PHY_SETTLING_AGC		0x0000007f	/* AGC settling time */
 #define	AR5K_PHY_SETTLING_AGC_S		0
 #define	AR5K_PHY_SETTLING_SWITCH	0x00003f80	/* Switch settlig time */
-#define	AR5K_PHY_SETTLINK_SWITCH_S	7
+#define	AR5K_PHY_SETTLING_SWITCH_S	7
 
 /*
  * PHY Gain registers
@@ -2069,14 +2069,14 @@
  * PHY sleep registers [5112+]
  */
 #define AR5K_PHY_SCR			0x9870
-#define AR5K_PHY_SCR_32MHZ		0x0000001f
 
 #define AR5K_PHY_SLMT			0x9874
 #define AR5K_PHY_SLMT_32MHZ		0x0000007f
 
 #define AR5K_PHY_SCAL			0x9878
 #define AR5K_PHY_SCAL_32MHZ		0x0000000e
-
+#define	AR5K_PHY_SCAL_32MHZ_2417	0x0000000a
+#define	AR5K_PHY_SCAL_32MHZ_HB63	0x00000032
 
 /*
  * PHY PLL (Phase Locked Loop) control register
@@ -2156,7 +2156,8 @@
 #define	AR5K_PHY_ANT_CTL_TXRX_EN	0x00000001	/* Enable TX/RX (?) */
 #define	AR5K_PHY_ANT_CTL_SECTORED_ANT	0x00000004	/* Sectored Antenna */
 #define	AR5K_PHY_ANT_CTL_HITUNE5	0x00000008	/* Hitune5 (?) */
-#define	AR5K_PHY_ANT_CTL_SWTABLE_IDLE	0x00000010	/* Switch table idle (?) */
+#define	AR5K_PHY_ANT_CTL_SWTABLE_IDLE	0x000003f0	/* Switch table idle (?) */
+#define	AR5K_PHY_ANT_CTL_SWTABLE_IDLE_S	4
 
 /*
  * PHY receiver delay register [5111+]
@@ -2196,7 +2197,7 @@
 #define	AR5K_PHY_OFDM_SELFCORR			0x9924			/* Register Address */
 #define	AR5K_PHY_OFDM_SELFCORR_CYPWR_THR1_EN	0x00000001	/* Enable cyclic RSSI thr 1 */
 #define	AR5K_PHY_OFDM_SELFCORR_CYPWR_THR1	0x000000fe	/* Mask for Cyclic RSSI threshold 1 */
-#define	AR5K_PHY_OFDM_SELFCORR_CYPWR_THR1_S	0
+#define	AR5K_PHY_OFDM_SELFCORR_CYPWR_THR1_S	1
 #define	AR5K_PHY_OFDM_SELFCORR_CYPWR_THR3	0x00000100	/* Cyclic RSSI threshold 3 (field) (?) */
 #define	AR5K_PHY_OFDM_SELFCORR_RSSI_1ATHR_EN	0x00008000	/* Enable 1A RSSI threshold (?) */
 #define	AR5K_PHY_OFDM_SELFCORR_RSSI_1ATHR	0x00010000	/* 1A RSSI threshold (field) (?) */
@@ -2278,6 +2279,15 @@
 			AR5K_PHY_FRAME_CTL_PARITY_ERR | \
 			AR5K_PHY_FRAME_CTL_TIMING_ERR
 
+/*
+ * PHY Tx Power adjustment register [5212A+]
+ */
+#define	AR5K_PHY_TX_PWR_ADJ			0x994c
+#define	AR5K_PHY_TX_PWR_ADJ_CCK_GAIN_DELTA	0x00000fc0
+#define	AR5K_PHY_TX_PWR_ADJ_CCK_GAIN_DELTA_S	6
+#define	AR5K_PHY_TX_PWR_ADJ_CCK_PCDAC_INDEX	0x00fc0000
+#define	AR5K_PHY_TX_PWR_ADJ_CCK_PCDAC_INDEX_S	18
+
 /*
  * PHY radar detection register [5111+]
  */
@@ -2331,7 +2341,7 @@
 #define AR5K_PHY_SIGMA_DELTA_FILT2_S	3
 #define AR5K_PHY_SIGMA_DELTA_FILT1	0x00001f00
 #define AR5K_PHY_SIGMA_DELTA_FILT1_S	8
-#define AR5K_PHY_SIGMA_DELTA_ADC_CLIP	0x01ff3000
+#define AR5K_PHY_SIGMA_DELTA_ADC_CLIP	0x01ffe000
 #define AR5K_PHY_SIGMA_DELTA_ADC_CLIP_S	13
 
 /*
@@ -2459,17 +2469,7 @@
 #define AR5K_PHY_SDELAY			0x99f4
 #define AR5K_PHY_SDELAY_32MHZ		0x000000ff
 #define AR5K_PHY_SPENDING		0x99f8
-#define AR5K_PHY_SPENDING_14		0x00000014
-#define AR5K_PHY_SPENDING_18		0x00000018
-#define AR5K_PHY_SPENDING_RF5111	0x00000018
-#define AR5K_PHY_SPENDING_RF5112	0x00000014
-/* #define AR5K_PHY_SPENDING_RF5112A	0x0000000e */
-/* #define AR5K_PHY_SPENDING_RF5424	0x00000012 */
-#define AR5K_PHY_SPENDING_RF5413	0x00000018
-#define AR5K_PHY_SPENDING_RF2413	0x00000018
-#define AR5K_PHY_SPENDING_RF2316	0x00000018
-#define AR5K_PHY_SPENDING_RF2317	0x00000018
-#define AR5K_PHY_SPENDING_RF2425	0x00000014
+
 
 /*
  * PHY PAPD I (power?) table (?)