From dab38e7d251d26917935352bee605974cc46eaec Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Mon, 16 Jan 2017 04:14:57 +0100 Subject: [PATCH] rt2x00: rt2800lib: support for for RT3352 with external PA This is needed for WiFi to work e.g. on DIR-615 rev.H1 which got external RF power amplifiers connected to the WiSoC. Signed-off-by: Daniel Golle Signed-off-by: Gabor Juhos Acked-by: Stanislaw Gruszka Signed-off-by: Kalle Valo --- drivers/net/wireless/ralink/rt2x00/rt2800.h | 24 ++++++ .../net/wireless/ralink/rt2x00/rt2800lib.c | 76 +++++++++++++++---- drivers/net/wireless/ralink/rt2x00/rt2x00.h | 2 + 3 files changed, 89 insertions(+), 13 deletions(-) diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800.h b/drivers/net/wireless/ralink/rt2x00/rt2800.h index 52743d451e72..18096903e20f 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2800.h +++ b/drivers/net/wireless/ralink/rt2x00/rt2800.h @@ -2302,6 +2302,12 @@ struct mac_iveiv_entry { /* RFCSR 36 bits for RF3053 */ #define RFCSR36_RF_BS FIELD8(0x80) +/* + * RFCSR 34: + */ +#define RFCSR34_TX0_EXT_PA FIELD8(0x04) +#define RFCSR34_TX1_EXT_PA FIELD8(0x08) + /* * RFCSR 38: */ @@ -2313,6 +2319,18 @@ struct mac_iveiv_entry { #define RFCSR39_RX_DIV FIELD8(0x40) #define RFCSR39_RX_LO2_EN FIELD8(0x80) +/* + * RFCSR 41: + */ +#define RFCSR41_BIT1 FIELD8(0x01) +#define RFCSR41_BIT4 FIELD8(0x08) + +/* + * RFCSR 42: + */ +#define RFCSR42_BIT1 FIELD8(0x01) +#define RFCSR42_BIT4 FIELD8(0x08) + /* * RFCSR 49: */ @@ -2326,6 +2344,8 @@ struct mac_iveiv_entry { * RFCSR 50: */ #define RFCSR50_TX FIELD8(0x3f) +#define RFCSR50_TX0_EXT_PA FIELD8(0x02) +#define RFCSR50_TX1_EXT_PA FIELD8(0x10) #define RFCSR50_EP FIELD8(0xc0) /* bits for RT3593 */ #define RFCSR50_TX_LO1_EN FIELD8(0x20) @@ -2473,6 +2493,8 @@ enum rt2800_eeprom_word { * INTERNAL_TX_ALC: 0: disable, 1: enable * BT_COEXIST: 0: disable, 1: enable * DAC_TEST: 0: disable, 1: enable + * EXTERNAL_TX0_PA: 0: disable, 1: enable (only on RT3352) + * EXTERNAL_TX1_PA: 0: disable, 1: enable (only on RT3352) */ #define EEPROM_NIC_CONF1_HW_RADIO FIELD16(0x0001) #define EEPROM_NIC_CONF1_EXTERNAL_TX_ALC FIELD16(0x0002) @@ -2489,6 +2511,8 @@ enum rt2800_eeprom_word { #define EEPROM_NIC_CONF1_INTERNAL_TX_ALC FIELD16(0x2000) #define EEPROM_NIC_CONF1_BT_COEXIST FIELD16(0x4000) #define EEPROM_NIC_CONF1_DAC_TEST FIELD16(0x8000) +#define EEPROM_NIC_CONF1_EXTERNAL_TX0_PA_3352 FIELD16(0x4000) +#define EEPROM_NIC_CONF1_EXTERNAL_TX1_PA_3352 FIELD16(0x8000) /* * EEPROM frequency diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c index 41fbfd6c4eec..8ea844d35ecb 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c @@ -3241,11 +3241,18 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev, /* * Change BBP settings */ + if (rt2x00_rt(rt2x00dev, RT3352)) { + rt2800_bbp_write(rt2x00dev, 62, 0x37 - rt2x00dev->lna_gain); + rt2800_bbp_write(rt2x00dev, 63, 0x37 - rt2x00dev->lna_gain); + rt2800_bbp_write(rt2x00dev, 64, 0x37 - rt2x00dev->lna_gain); + rt2800_bbp_write(rt2x00dev, 27, 0x0); rt2800_bbp_write(rt2x00dev, 66, 0x26 + rt2x00dev->lna_gain); rt2800_bbp_write(rt2x00dev, 27, 0x20); rt2800_bbp_write(rt2x00dev, 66, 0x26 + rt2x00dev->lna_gain); + rt2800_bbp_write(rt2x00dev, 86, 0x38); + rt2800_bbp_write(rt2x00dev, 83, 0x6a); } else if (rt2x00_rt(rt2x00dev, RT3593)) { if (rf->channel > 14) { /* Disable CCK Packet detection on 5GHz */ @@ -6187,6 +6194,12 @@ static void rt2800_init_rfcsr_3290(struct rt2x00_dev *rt2x00dev) static void rt2800_init_rfcsr_3352(struct rt2x00_dev *rt2x00dev) { + int tx0_int_pa = test_bit(CAPABILITY_INTERNAL_PA_TX0, + &rt2x00dev->cap_flags); + int tx1_int_pa = test_bit(CAPABILITY_INTERNAL_PA_TX1, + &rt2x00dev->cap_flags); + u8 rfcsr; + rt2800_rf_init_calibration(rt2x00dev, 30); rt2800_rfcsr_write(rt2x00dev, 0, 0xf0); @@ -6222,15 +6235,30 @@ static void rt2800_init_rfcsr_3352(struct rt2x00_dev *rt2x00dev) rt2800_rfcsr_write(rt2x00dev, 31, 0x80); rt2800_rfcsr_write(rt2x00dev, 32, 0x80); rt2800_rfcsr_write(rt2x00dev, 33, 0x00); - rt2800_rfcsr_write(rt2x00dev, 34, 0x01); + rfcsr = 0x01; + if (!tx0_int_pa) + rt2x00_set_field8(&rfcsr, RFCSR34_TX0_EXT_PA, 1); + if (!tx1_int_pa) + rt2x00_set_field8(&rfcsr, RFCSR34_TX1_EXT_PA, 1); + rt2800_rfcsr_write(rt2x00dev, 34, rfcsr); rt2800_rfcsr_write(rt2x00dev, 35, 0x03); rt2800_rfcsr_write(rt2x00dev, 36, 0xbd); rt2800_rfcsr_write(rt2x00dev, 37, 0x3c); rt2800_rfcsr_write(rt2x00dev, 38, 0x5f); rt2800_rfcsr_write(rt2x00dev, 39, 0xc5); rt2800_rfcsr_write(rt2x00dev, 40, 0x33); - rt2800_rfcsr_write(rt2x00dev, 41, 0x5b); - rt2800_rfcsr_write(rt2x00dev, 42, 0x5b); + rfcsr = 0x52; + if (tx0_int_pa) { + rt2x00_set_field8(&rfcsr, RFCSR41_BIT1, 1); + rt2x00_set_field8(&rfcsr, RFCSR41_BIT4, 1); + } + rt2800_rfcsr_write(rt2x00dev, 41, rfcsr); + rfcsr = 0x52; + if (tx1_int_pa) { + rt2x00_set_field8(&rfcsr, RFCSR42_BIT1, 1); + rt2x00_set_field8(&rfcsr, RFCSR42_BIT4, 1); + } + rt2800_rfcsr_write(rt2x00dev, 42, rfcsr); rt2800_rfcsr_write(rt2x00dev, 43, 0xdb); rt2800_rfcsr_write(rt2x00dev, 44, 0xdb); rt2800_rfcsr_write(rt2x00dev, 45, 0xdb); @@ -6238,15 +6266,20 @@ static void rt2800_init_rfcsr_3352(struct rt2x00_dev *rt2x00dev) rt2800_rfcsr_write(rt2x00dev, 47, 0x0d); rt2800_rfcsr_write(rt2x00dev, 48, 0x14); rt2800_rfcsr_write(rt2x00dev, 49, 0x00); - rt2800_rfcsr_write(rt2x00dev, 50, 0x2d); - rt2800_rfcsr_write(rt2x00dev, 51, 0x7f); - rt2800_rfcsr_write(rt2x00dev, 52, 0x00); - rt2800_rfcsr_write(rt2x00dev, 53, 0x52); - rt2800_rfcsr_write(rt2x00dev, 54, 0x1b); - rt2800_rfcsr_write(rt2x00dev, 55, 0x7f); - rt2800_rfcsr_write(rt2x00dev, 56, 0x00); - rt2800_rfcsr_write(rt2x00dev, 57, 0x52); - rt2800_rfcsr_write(rt2x00dev, 58, 0x1b); + rfcsr = 0x2d; + if (!tx0_int_pa) + rt2x00_set_field8(&rfcsr, RFCSR50_TX0_EXT_PA, 1); + if (!tx1_int_pa) + rt2x00_set_field8(&rfcsr, RFCSR50_TX1_EXT_PA, 1); + rt2800_rfcsr_write(rt2x00dev, 50, rfcsr); + rt2800_rfcsr_write(rt2x00dev, 51, (tx0_int_pa ? 0x7f : 0x52)); + rt2800_rfcsr_write(rt2x00dev, 52, (tx0_int_pa ? 0x00 : 0xc0)); + rt2800_rfcsr_write(rt2x00dev, 53, (tx0_int_pa ? 0x52 : 0xd2)); + rt2800_rfcsr_write(rt2x00dev, 54, (tx0_int_pa ? 0x1b : 0xc0)); + rt2800_rfcsr_write(rt2x00dev, 55, (tx1_int_pa ? 0x7f : 0x52)); + rt2800_rfcsr_write(rt2x00dev, 56, (tx1_int_pa ? 0x00 : 0xc0)); + rt2800_rfcsr_write(rt2x00dev, 57, (tx0_int_pa ? 0x52 : 0x49)); + rt2800_rfcsr_write(rt2x00dev, 58, (tx1_int_pa ? 0x1b : 0xc0)); rt2800_rfcsr_write(rt2x00dev, 59, 0x00); rt2800_rfcsr_write(rt2x00dev, 60, 0x00); rt2800_rfcsr_write(rt2x00dev, 61, 0x00); @@ -7203,7 +7236,8 @@ static int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev) /* * Detect if this device has Bluetooth co-existence. */ - if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_BT_COEXIST)) + if (!rt2x00_rt(rt2x00dev, RT3352) && + rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_BT_COEXIST)) __set_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags); /* @@ -7232,6 +7266,22 @@ static int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev) EIRP_MAX_TX_POWER_LIMIT) __set_bit(CAPABILITY_POWER_LIMIT, &rt2x00dev->cap_flags); + /* + * Detect if device uses internal or external PA + */ + rt2800_eeprom_read(rt2x00dev, EEPROM_NIC_CONF1, &eeprom); + + if (rt2x00_rt(rt2x00dev, RT3352)) { + if (!rt2x00_get_field16(eeprom, + EEPROM_NIC_CONF1_EXTERNAL_TX0_PA_3352)) + __set_bit(CAPABILITY_INTERNAL_PA_TX0, + &rt2x00dev->cap_flags); + if (!rt2x00_get_field16(eeprom, + EEPROM_NIC_CONF1_EXTERNAL_TX1_PA_3352)) + __set_bit(CAPABILITY_INTERNAL_PA_TX1, + &rt2x00dev->cap_flags); + } + return 0; } diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00.h b/drivers/net/wireless/ralink/rt2x00/rt2x00.h index 034a07273038..bea7ac30522f 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h @@ -716,6 +716,8 @@ enum rt2x00_capability_flags { CAPABILITY_DOUBLE_ANTENNA, CAPABILITY_BT_COEXIST, CAPABILITY_VCO_RECALIBRATION, + CAPABILITY_INTERNAL_PA_TX0, + CAPABILITY_INTERNAL_PA_TX1, }; /* -- 2.39.5