| /* |
| * RTL8XXXU mac80211 USB driver - 8723a specific subdriver |
| * |
| * Copyright (c) 2014 - 2016 Jes Sorensen <Jes.Sorensen@redhat.com> |
| * |
| * Portions, notably calibration code: |
| * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. |
| * |
| * This driver was written as a replacement for the vendor provided |
| * rtl8723au driver. As the Realtek 8xxx chips are very similar in |
| * their programming interface, I have started adding support for |
| * additional 8xxx chips like the 8192cu, 8188cus, etc. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/kernel.h> |
| #include <linux/sched.h> |
| #include <linux/errno.h> |
| #include <linux/slab.h> |
| #include <linux/module.h> |
| #include <linux/spinlock.h> |
| #include <linux/list.h> |
| #include <linux/usb.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/ethtool.h> |
| #include <linux/wireless.h> |
| #include <linux/firmware.h> |
| #include <linux/moduleparam.h> |
| #include <net/mac80211.h> |
| #include "rtl8xxxu.h" |
| #include "rtl8xxxu_regs.h" |
| |
| static struct rtl8xxxu_power_base rtl8723a_power_base = { |
| .reg_0e00 = 0x0a0c0c0c, |
| .reg_0e04 = 0x02040608, |
| .reg_0e08 = 0x00000000, |
| .reg_086c = 0x00000000, |
| |
| .reg_0e10 = 0x0a0c0d0e, |
| .reg_0e14 = 0x02040608, |
| .reg_0e18 = 0x0a0c0d0e, |
| .reg_0e1c = 0x02040608, |
| |
| .reg_0830 = 0x0a0c0c0c, |
| .reg_0834 = 0x02040608, |
| .reg_0838 = 0x00000000, |
| .reg_086c_2 = 0x00000000, |
| |
| .reg_083c = 0x0a0c0d0e, |
| .reg_0848 = 0x02040608, |
| .reg_084c = 0x0a0c0d0e, |
| .reg_0868 = 0x02040608, |
| }; |
| |
| static struct rtl8xxxu_rfregval rtl8723au_radioa_1t_init_table[] = { |
| {0x00, 0x00030159}, {0x01, 0x00031284}, |
| {0x02, 0x00098000}, {0x03, 0x00039c63}, |
| {0x04, 0x000210e7}, {0x09, 0x0002044f}, |
| {0x0a, 0x0001a3f1}, {0x0b, 0x00014787}, |
| {0x0c, 0x000896fe}, {0x0d, 0x0000e02c}, |
| {0x0e, 0x00039ce7}, {0x0f, 0x00000451}, |
| {0x19, 0x00000000}, {0x1a, 0x00030355}, |
| {0x1b, 0x00060a00}, {0x1c, 0x000fc378}, |
| {0x1d, 0x000a1250}, {0x1e, 0x0000024f}, |
| {0x1f, 0x00000000}, {0x20, 0x0000b614}, |
| {0x21, 0x0006c000}, {0x22, 0x00000000}, |
| {0x23, 0x00001558}, {0x24, 0x00000060}, |
| {0x25, 0x00000483}, {0x26, 0x0004f000}, |
| {0x27, 0x000ec7d9}, {0x28, 0x00057730}, |
| {0x29, 0x00004783}, {0x2a, 0x00000001}, |
| {0x2b, 0x00021334}, {0x2a, 0x00000000}, |
| {0x2b, 0x00000054}, {0x2a, 0x00000001}, |
| {0x2b, 0x00000808}, {0x2b, 0x00053333}, |
| {0x2c, 0x0000000c}, {0x2a, 0x00000002}, |
| {0x2b, 0x00000808}, {0x2b, 0x0005b333}, |
| {0x2c, 0x0000000d}, {0x2a, 0x00000003}, |
| {0x2b, 0x00000808}, {0x2b, 0x00063333}, |
| {0x2c, 0x0000000d}, {0x2a, 0x00000004}, |
| {0x2b, 0x00000808}, {0x2b, 0x0006b333}, |
| {0x2c, 0x0000000d}, {0x2a, 0x00000005}, |
| {0x2b, 0x00000808}, {0x2b, 0x00073333}, |
| {0x2c, 0x0000000d}, {0x2a, 0x00000006}, |
| {0x2b, 0x00000709}, {0x2b, 0x0005b333}, |
| {0x2c, 0x0000000d}, {0x2a, 0x00000007}, |
| {0x2b, 0x00000709}, {0x2b, 0x00063333}, |
| {0x2c, 0x0000000d}, {0x2a, 0x00000008}, |
| {0x2b, 0x0000060a}, {0x2b, 0x0004b333}, |
| {0x2c, 0x0000000d}, {0x2a, 0x00000009}, |
| {0x2b, 0x0000060a}, {0x2b, 0x00053333}, |
| {0x2c, 0x0000000d}, {0x2a, 0x0000000a}, |
| {0x2b, 0x0000060a}, {0x2b, 0x0005b333}, |
| {0x2c, 0x0000000d}, {0x2a, 0x0000000b}, |
| {0x2b, 0x0000060a}, {0x2b, 0x00063333}, |
| {0x2c, 0x0000000d}, {0x2a, 0x0000000c}, |
| {0x2b, 0x0000060a}, {0x2b, 0x0006b333}, |
| {0x2c, 0x0000000d}, {0x2a, 0x0000000d}, |
| {0x2b, 0x0000060a}, {0x2b, 0x00073333}, |
| {0x2c, 0x0000000d}, {0x2a, 0x0000000e}, |
| {0x2b, 0x0000050b}, {0x2b, 0x00066666}, |
| {0x2c, 0x0000001a}, {0x2a, 0x000e0000}, |
| {0x10, 0x0004000f}, {0x11, 0x000e31fc}, |
| {0x10, 0x0006000f}, {0x11, 0x000ff9f8}, |
| {0x10, 0x0002000f}, {0x11, 0x000203f9}, |
| {0x10, 0x0003000f}, {0x11, 0x000ff500}, |
| {0x10, 0x00000000}, {0x11, 0x00000000}, |
| {0x10, 0x0008000f}, {0x11, 0x0003f100}, |
| {0x10, 0x0009000f}, {0x11, 0x00023100}, |
| {0x12, 0x00032000}, {0x12, 0x00071000}, |
| {0x12, 0x000b0000}, {0x12, 0x000fc000}, |
| {0x13, 0x000287b3}, {0x13, 0x000244b7}, |
| {0x13, 0x000204ab}, {0x13, 0x0001c49f}, |
| {0x13, 0x00018493}, {0x13, 0x0001429b}, |
| {0x13, 0x00010299}, {0x13, 0x0000c29c}, |
| {0x13, 0x000081a0}, {0x13, 0x000040ac}, |
| {0x13, 0x00000020}, {0x14, 0x0001944c}, |
| {0x14, 0x00059444}, {0x14, 0x0009944c}, |
| {0x14, 0x000d9444}, {0x15, 0x0000f474}, |
| {0x15, 0x0004f477}, {0x15, 0x0008f455}, |
| {0x15, 0x000cf455}, {0x16, 0x00000339}, |
| {0x16, 0x00040339}, {0x16, 0x00080339}, |
| {0x16, 0x000c0366}, {0x00, 0x00010159}, |
| {0x18, 0x0000f401}, {0xfe, 0x00000000}, |
| {0xfe, 0x00000000}, {0x1f, 0x00000003}, |
| {0xfe, 0x00000000}, {0xfe, 0x00000000}, |
| {0x1e, 0x00000247}, {0x1f, 0x00000000}, |
| {0x00, 0x00030159}, |
| {0xff, 0xffffffff} |
| }; |
| |
| static int rtl8723au_parse_efuse(struct rtl8xxxu_priv *priv) |
| { |
| struct rtl8723au_efuse *efuse = &priv->efuse_wifi.efuse8723; |
| |
| if (efuse->rtl_id != cpu_to_le16(0x8129)) |
| return -EINVAL; |
| |
| ether_addr_copy(priv->mac_addr, efuse->mac_addr); |
| |
| memcpy(priv->cck_tx_power_index_A, |
| efuse->cck_tx_power_index_A, |
| sizeof(efuse->cck_tx_power_index_A)); |
| memcpy(priv->cck_tx_power_index_B, |
| efuse->cck_tx_power_index_B, |
| sizeof(efuse->cck_tx_power_index_B)); |
| |
| memcpy(priv->ht40_1s_tx_power_index_A, |
| efuse->ht40_1s_tx_power_index_A, |
| sizeof(efuse->ht40_1s_tx_power_index_A)); |
| memcpy(priv->ht40_1s_tx_power_index_B, |
| efuse->ht40_1s_tx_power_index_B, |
| sizeof(efuse->ht40_1s_tx_power_index_B)); |
| |
| memcpy(priv->ht20_tx_power_index_diff, |
| efuse->ht20_tx_power_index_diff, |
| sizeof(efuse->ht20_tx_power_index_diff)); |
| memcpy(priv->ofdm_tx_power_index_diff, |
| efuse->ofdm_tx_power_index_diff, |
| sizeof(efuse->ofdm_tx_power_index_diff)); |
| |
| memcpy(priv->ht40_max_power_offset, |
| efuse->ht40_max_power_offset, |
| sizeof(efuse->ht40_max_power_offset)); |
| memcpy(priv->ht20_max_power_offset, |
| efuse->ht20_max_power_offset, |
| sizeof(efuse->ht20_max_power_offset)); |
| |
| if (priv->efuse_wifi.efuse8723.version >= 0x01) { |
| priv->has_xtalk = 1; |
| priv->xtalk = priv->efuse_wifi.efuse8723.xtal_k & 0x3f; |
| } |
| |
| priv->power_base = &rtl8723a_power_base; |
| |
| dev_info(&priv->udev->dev, "Vendor: %.7s\n", |
| efuse->vendor_name); |
| dev_info(&priv->udev->dev, "Product: %.41s\n", |
| efuse->device_name); |
| return 0; |
| } |
| |
| static int rtl8723au_load_firmware(struct rtl8xxxu_priv *priv) |
| { |
| char *fw_name; |
| int ret; |
| |
| switch (priv->chip_cut) { |
| case 0: |
| fw_name = "rtlwifi/rtl8723aufw_A.bin"; |
| break; |
| case 1: |
| if (priv->enable_bluetooth) |
| fw_name = "rtlwifi/rtl8723aufw_B.bin"; |
| else |
| fw_name = "rtlwifi/rtl8723aufw_B_NoBT.bin"; |
| |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| ret = rtl8xxxu_load_firmware(priv, fw_name); |
| return ret; |
| } |
| |
| static int rtl8723au_init_phy_rf(struct rtl8xxxu_priv *priv) |
| { |
| int ret; |
| |
| ret = rtl8xxxu_init_phy_rf(priv, rtl8723au_radioa_1t_init_table, RF_A); |
| |
| /* Reduce 80M spur */ |
| rtl8xxxu_write32(priv, REG_AFE_XTAL_CTRL, 0x0381808d); |
| rtl8xxxu_write32(priv, REG_AFE_PLL_CTRL, 0xf0ffff83); |
| rtl8xxxu_write32(priv, REG_AFE_PLL_CTRL, 0xf0ffff82); |
| rtl8xxxu_write32(priv, REG_AFE_PLL_CTRL, 0xf0ffff83); |
| |
| return ret; |
| } |
| |
| static int rtl8723a_emu_to_active(struct rtl8xxxu_priv *priv) |
| { |
| u8 val8; |
| u32 val32; |
| int count, ret = 0; |
| |
| /* 0x20[0] = 1 enable LDOA12 MACRO block for all interface*/ |
| val8 = rtl8xxxu_read8(priv, REG_LDOA15_CTRL); |
| val8 |= LDOA15_ENABLE; |
| rtl8xxxu_write8(priv, REG_LDOA15_CTRL, val8); |
| |
| /* 0x67[0] = 0 to disable BT_GPS_SEL pins*/ |
| val8 = rtl8xxxu_read8(priv, 0x0067); |
| val8 &= ~BIT(4); |
| rtl8xxxu_write8(priv, 0x0067, val8); |
| |
| mdelay(1); |
| |
| /* 0x00[5] = 0 release analog Ips to digital, 1:isolation */ |
| val8 = rtl8xxxu_read8(priv, REG_SYS_ISO_CTRL); |
| val8 &= ~SYS_ISO_ANALOG_IPS; |
| rtl8xxxu_write8(priv, REG_SYS_ISO_CTRL, val8); |
| |
| /* disable SW LPS 0x04[10]= 0 */ |
| val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1); |
| val8 &= ~BIT(2); |
| rtl8xxxu_write8(priv, REG_APS_FSMCO + 1, val8); |
| |
| /* wait till 0x04[17] = 1 power ready*/ |
| for (count = RTL8XXXU_MAX_REG_POLL; count; count--) { |
| val32 = rtl8xxxu_read32(priv, REG_APS_FSMCO); |
| if (val32 & BIT(17)) |
| break; |
| |
| udelay(10); |
| } |
| |
| if (!count) { |
| ret = -EBUSY; |
| goto exit; |
| } |
| |
| /* We should be able to optimize the following three entries into one */ |
| |
| /* release WLON reset 0x04[16]= 1*/ |
| val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 2); |
| val8 |= BIT(0); |
| rtl8xxxu_write8(priv, REG_APS_FSMCO + 2, val8); |
| |
| /* disable HWPDN 0x04[15]= 0*/ |
| val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1); |
| val8 &= ~BIT(7); |
| rtl8xxxu_write8(priv, REG_APS_FSMCO + 1, val8); |
| |
| /* disable WL suspend*/ |
| val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1); |
| val8 &= ~(BIT(3) | BIT(4)); |
| rtl8xxxu_write8(priv, REG_APS_FSMCO + 1, val8); |
| |
| /* set, then poll until 0 */ |
| val32 = rtl8xxxu_read32(priv, REG_APS_FSMCO); |
| val32 |= APS_FSMCO_MAC_ENABLE; |
| rtl8xxxu_write32(priv, REG_APS_FSMCO, val32); |
| |
| for (count = RTL8XXXU_MAX_REG_POLL; count; count--) { |
| val32 = rtl8xxxu_read32(priv, REG_APS_FSMCO); |
| if ((val32 & APS_FSMCO_MAC_ENABLE) == 0) { |
| ret = 0; |
| break; |
| } |
| udelay(10); |
| } |
| |
| if (!count) { |
| ret = -EBUSY; |
| goto exit; |
| } |
| |
| /* 0x4C[23] = 0x4E[7] = 1, switch DPDT_SEL_P output from WL BB */ |
| /* |
| * Note: Vendor driver actually clears this bit, despite the |
| * documentation claims it's being set! |
| */ |
| val8 = rtl8xxxu_read8(priv, REG_LEDCFG2); |
| val8 |= LEDCFG2_DPDT_SELECT; |
| val8 &= ~LEDCFG2_DPDT_SELECT; |
| rtl8xxxu_write8(priv, REG_LEDCFG2, val8); |
| |
| exit: |
| return ret; |
| } |
| |
| static int rtl8723au_power_on(struct rtl8xxxu_priv *priv) |
| { |
| u8 val8; |
| u16 val16; |
| u32 val32; |
| int ret; |
| |
| /* |
| * RSV_CTRL 0x001C[7:0] = 0x00, unlock ISO/CLK/Power control register |
| */ |
| rtl8xxxu_write8(priv, REG_RSV_CTRL, 0x0); |
| |
| rtl8xxxu_disabled_to_emu(priv); |
| |
| ret = rtl8723a_emu_to_active(priv); |
| if (ret) |
| goto exit; |
| |
| /* |
| * 0x0004[19] = 1, reset 8051 |
| */ |
| val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 2); |
| val8 |= BIT(3); |
| rtl8xxxu_write8(priv, REG_APS_FSMCO + 2, val8); |
| |
| /* |
| * Enable MAC DMA/WMAC/SCHEDULE/SEC block |
| * Set CR bit10 to enable 32k calibration. |
| */ |
| val16 = rtl8xxxu_read16(priv, REG_CR); |
| val16 |= (CR_HCI_TXDMA_ENABLE | CR_HCI_RXDMA_ENABLE | |
| CR_TXDMA_ENABLE | CR_RXDMA_ENABLE | |
| CR_PROTOCOL_ENABLE | CR_SCHEDULE_ENABLE | |
| CR_MAC_TX_ENABLE | CR_MAC_RX_ENABLE | |
| CR_SECURITY_ENABLE | CR_CALTIMER_ENABLE); |
| rtl8xxxu_write16(priv, REG_CR, val16); |
| |
| /* For EFuse PG */ |
| val32 = rtl8xxxu_read32(priv, REG_EFUSE_CTRL); |
| val32 &= ~(BIT(28) | BIT(29) | BIT(30)); |
| val32 |= (0x06 << 28); |
| rtl8xxxu_write32(priv, REG_EFUSE_CTRL, val32); |
| exit: |
| return ret; |
| } |
| |
| struct rtl8xxxu_fileops rtl8723au_fops = { |
| .parse_efuse = rtl8723au_parse_efuse, |
| .load_firmware = rtl8723au_load_firmware, |
| .power_on = rtl8723au_power_on, |
| .power_off = rtl8xxxu_power_off, |
| .reset_8051 = rtl8xxxu_reset_8051, |
| .llt_init = rtl8xxxu_init_llt_table, |
| .init_phy_bb = rtl8xxxu_gen1_init_phy_bb, |
| .init_phy_rf = rtl8723au_init_phy_rf, |
| .phy_iq_calibrate = rtl8xxxu_gen1_phy_iq_calibrate, |
| .config_channel = rtl8xxxu_gen1_config_channel, |
| .parse_rx_desc = rtl8xxxu_parse_rxdesc16, |
| .init_aggregation = rtl8xxxu_gen1_init_aggregation, |
| .enable_rf = rtl8xxxu_gen1_enable_rf, |
| .disable_rf = rtl8xxxu_gen1_disable_rf, |
| .usb_quirks = rtl8xxxu_gen1_usb_quirks, |
| .set_tx_power = rtl8xxxu_gen1_set_tx_power, |
| .update_rate_mask = rtl8xxxu_update_rate_mask, |
| .report_connect = rtl8xxxu_gen1_report_connect, |
| .fill_txdesc = rtl8xxxu_fill_txdesc_v1, |
| .writeN_block_size = 1024, |
| .rx_agg_buf_size = 16000, |
| .tx_desc_size = sizeof(struct rtl8xxxu_txdesc32), |
| .rx_desc_size = sizeof(struct rtl8xxxu_rxdesc16), |
| .adda_1t_init = 0x0b1b25a0, |
| .adda_1t_path_on = 0x0bdb25a0, |
| .adda_2t_path_on_a = 0x04db25a4, |
| .adda_2t_path_on_b = 0x0b1b25a4, |
| .trxff_boundary = 0x27ff, |
| .pbp_rx = PBP_PAGE_SIZE_128, |
| .pbp_tx = PBP_PAGE_SIZE_128, |
| .mactable = rtl8xxxu_gen1_mac_init_table, |
| .total_page_num = TX_TOTAL_PAGE_NUM, |
| .page_num_hi = TX_PAGE_NUM_HI_PQ, |
| .page_num_lo = TX_PAGE_NUM_LO_PQ, |
| .page_num_norm = TX_PAGE_NUM_NORM_PQ, |
| }; |