blob: 1148075f0cd64c5045c6df8bf5a228031f8bfe98 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
*
* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
* Linux device driver for RTL8192SU
*
* Modifications for inclusion into the Linux staging tree are
* Copyright(c) 2010 Larry Finger. All rights reserved.
*
* Contact information:
* WLAN FAE <wlanfae@realtek.com>.
* Larry Finger <Larry.Finger@lwfinger.net>
*
******************************************************************************/
#define _HAL_INIT_C_
#include <linux/usb.h>
#include <linux/device.h>
#include <linux/usb/ch9.h>
#include <linux/firmware.h>
#include <linux/module.h>
#include "osdep_service.h"
#include "drv_types.h"
#include "usb_osintf.h"
#define FWBUFF_ALIGN_SZ 512
#define MAX_DUMP_FWSZ (48 * 1024)
static void rtl871x_load_fw_fail(struct _adapter *adapter)
{
struct usb_device *udev = adapter->dvobjpriv.pusbdev;
struct device *dev = &udev->dev;
struct device *parent = dev->parent;
complete(&adapter->rtl8712_fw_ready);
dev_err(&udev->dev, "r8712u: Firmware request failed\n");
if (parent)
device_lock(parent);
device_release_driver(dev);
if (parent)
device_unlock(parent);
}
static void rtl871x_load_fw_cb(const struct firmware *firmware, void *context)
{
struct _adapter *adapter = context;
if (!firmware) {
rtl871x_load_fw_fail(adapter);
return;
}
adapter->fw = firmware;
/* firmware available - start netdev */
register_netdev(adapter->pnetdev);
complete(&adapter->rtl8712_fw_ready);
}
static const char firmware_file[] = "rtlwifi/rtl8712u.bin";
int rtl871x_load_fw(struct _adapter *padapter)
{
struct device *dev = &padapter->dvobjpriv.pusbdev->dev;
int rc;
init_completion(&padapter->rtl8712_fw_ready);
dev_info(dev, "r8712u: Loading firmware from \"%s\"\n", firmware_file);
rc = request_firmware_nowait(THIS_MODULE, 1, firmware_file, dev,
GFP_KERNEL, padapter, rtl871x_load_fw_cb);
if (rc)
dev_err(dev, "r8712u: Firmware request error %d\n", rc);
return rc;
}
MODULE_FIRMWARE("rtlwifi/rtl8712u.bin");
static u32 rtl871x_open_fw(struct _adapter *adapter, const u8 **mappedfw)
{
if (adapter->fw->size > 200000) {
dev_err(&adapter->pnetdev->dev, "r8712u: Bad fw->size of %zu\n",
adapter->fw->size);
return 0;
}
*mappedfw = adapter->fw->data;
return adapter->fw->size;
}
static void fill_fwpriv(struct _adapter *adapter, struct fw_priv *fwpriv)
{
struct dvobj_priv *dvobj = &adapter->dvobjpriv;
struct registry_priv *regpriv = &adapter->registrypriv;
memset(fwpriv, 0, sizeof(struct fw_priv));
/* todo: check if needs endian conversion */
fwpriv->hci_sel = RTL8712_HCI_TYPE_72USB;
fwpriv->usb_ep_num = (u8)dvobj->nr_endpoint;
fwpriv->bw_40MHz_en = regpriv->cbw40_enable;
switch (regpriv->rf_config) {
case RTL8712_RF_1T1R:
fwpriv->rf_config = RTL8712_RFC_1T1R;
break;
case RTL8712_RF_2T2R:
fwpriv->rf_config = RTL8712_RFC_2T2R;
break;
case RTL8712_RF_1T2R:
default:
fwpriv->rf_config = RTL8712_RFC_1T2R;
}
fwpriv->mp_mode = (regpriv->mp_mode == 1);
/* 0:off 1:on 2:auto */
fwpriv->vcs_type = regpriv->vrtl_carrier_sense;
fwpriv->vcs_mode = regpriv->vcs_type; /* 1:RTS/CTS 2:CTS to self */
/* default enable turbo_mode */
fwpriv->turbo_mode = (regpriv->wifi_test != 1);
fwpriv->low_power_mode = regpriv->low_power;
}
static void update_fwhdr(struct fw_hdr *pfwhdr, const u8 *pmappedfw)
{
pfwhdr->signature = le16_to_cpu(*(__le16 *)pmappedfw);
pfwhdr->version = le16_to_cpu(*(__le16 *)(pmappedfw + 2));
/* define the size of boot loader */
pfwhdr->dmem_size = le32_to_cpu(*(__le32 *)(pmappedfw + 4));
/* define the size of FW in IMEM */
pfwhdr->img_IMEM_size = le32_to_cpu(*(__le32 *)(pmappedfw + 8));
/* define the size of FW in SRAM */
pfwhdr->img_SRAM_size = le32_to_cpu(*(__le32 *)(pmappedfw + 12));
/* define the size of DMEM variable */
pfwhdr->fw_priv_sz = le32_to_cpu(*(__le32 *)(pmappedfw + 16));
}
static u8 chk_fwhdr(struct fw_hdr *pfwhdr, u32 ulfilelength)
{
u32 fwhdrsz, fw_sz;
/* check signature */
if ((pfwhdr->signature != 0x8712) && (pfwhdr->signature != 0x8192))
return _FAIL;
/* check fw_priv_sze & sizeof(struct fw_priv) */
if (pfwhdr->fw_priv_sz != sizeof(struct fw_priv))
return _FAIL;
/* check fw_sz & image_fw_sz */
fwhdrsz = offsetof(struct fw_hdr, fwpriv) + pfwhdr->fw_priv_sz;
fw_sz = fwhdrsz + pfwhdr->img_IMEM_size + pfwhdr->img_SRAM_size +
pfwhdr->dmem_size;
if (fw_sz != ulfilelength)
return _FAIL;
return _SUCCESS;
}
static u8 rtl8712_dl_fw(struct _adapter *adapter)
{
sint i;
u8 tmp8, tmp8_a;
u16 tmp16;
u32 maxlen = 0; /* for compare usage */
uint dump_imem_sz, imem_sz, dump_emem_sz, emem_sz; /* max = 49152; */
struct fw_hdr fwhdr;
u32 ulfilelength; /* FW file size */
const u8 *mappedfw = NULL;
u8 *tmpchar = NULL, *payload, *ptr;
struct tx_desc *txdesc;
u32 txdscp_sz = sizeof(struct tx_desc);
u8 ret = _FAIL;
ulfilelength = rtl871x_open_fw(adapter, &mappedfw);
if (mappedfw && (ulfilelength > 0)) {
update_fwhdr(&fwhdr, mappedfw);
if (chk_fwhdr(&fwhdr, ulfilelength) == _FAIL)
return ret;
fill_fwpriv(adapter, &fwhdr.fwpriv);
/* firmware check ok */
maxlen = (fwhdr.img_IMEM_size > fwhdr.img_SRAM_size) ?
fwhdr.img_IMEM_size : fwhdr.img_SRAM_size;
maxlen += txdscp_sz;
tmpchar = kmalloc(maxlen + FWBUFF_ALIGN_SZ, GFP_KERNEL);
if (!tmpchar)
return ret;
txdesc = (struct tx_desc *)(tmpchar + FWBUFF_ALIGN_SZ -
((addr_t)(tmpchar) & (FWBUFF_ALIGN_SZ - 1)));
payload = (u8 *)(txdesc) + txdscp_sz;
ptr = (u8 *)mappedfw + offsetof(struct fw_hdr, fwpriv) +
fwhdr.fw_priv_sz;
/* Download FirmWare */
/* 1. determine IMEM code size and Load IMEM Code Section */
imem_sz = fwhdr.img_IMEM_size;
do {
memset(txdesc, 0, TXDESC_SIZE);
if (imem_sz > MAX_DUMP_FWSZ/*49152*/) {
dump_imem_sz = MAX_DUMP_FWSZ;
} else {
dump_imem_sz = imem_sz;
txdesc->txdw0 |= cpu_to_le32(BIT(28));
}
txdesc->txdw0 |= cpu_to_le32(dump_imem_sz &
0x0000ffff);
memcpy(payload, ptr, dump_imem_sz);
r8712_write_mem(adapter, RTL8712_DMA_VOQ,
dump_imem_sz + TXDESC_SIZE,
(u8 *)txdesc);
ptr += dump_imem_sz;
imem_sz -= dump_imem_sz;
} while (imem_sz > 0);
i = 10;
tmp16 = r8712_read16(adapter, TCR);
while (((tmp16 & _IMEM_CODE_DONE) == 0) && (i > 0)) {
usleep_range(10, 1000);
tmp16 = r8712_read16(adapter, TCR);
i--;
}
if (i == 0 || (tmp16 & _IMEM_CHK_RPT) == 0)
goto exit_fail;
/* 2.Download EMEM code size and Load EMEM Code Section */
emem_sz = fwhdr.img_SRAM_size;
do {
memset(txdesc, 0, TXDESC_SIZE);
if (emem_sz > MAX_DUMP_FWSZ) { /* max=48k */
dump_emem_sz = MAX_DUMP_FWSZ;
} else {
dump_emem_sz = emem_sz;
txdesc->txdw0 |= cpu_to_le32(BIT(28));
}
txdesc->txdw0 |= cpu_to_le32(dump_emem_sz &
0x0000ffff);
memcpy(payload, ptr, dump_emem_sz);
r8712_write_mem(adapter, RTL8712_DMA_VOQ,
dump_emem_sz + TXDESC_SIZE,
(u8 *)txdesc);
ptr += dump_emem_sz;
emem_sz -= dump_emem_sz;
} while (emem_sz > 0);
i = 5;
tmp16 = r8712_read16(adapter, TCR);
while (((tmp16 & _EMEM_CODE_DONE) == 0) && (i > 0)) {
usleep_range(10, 1000);
tmp16 = r8712_read16(adapter, TCR);
i--;
}
if (i == 0 || (tmp16 & _EMEM_CHK_RPT) == 0)
goto exit_fail;
/* 3.Enable CPU */
tmp8 = r8712_read8(adapter, SYS_CLKR);
r8712_write8(adapter, SYS_CLKR, tmp8 | BIT(2));
tmp8_a = r8712_read8(adapter, SYS_CLKR);
if (tmp8_a != (tmp8 | BIT(2)))
goto exit_fail;
tmp8 = r8712_read8(adapter, SYS_FUNC_EN + 1);
r8712_write8(adapter, SYS_FUNC_EN + 1, tmp8 | BIT(2));
tmp8_a = r8712_read8(adapter, SYS_FUNC_EN + 1);
if (tmp8_a != (tmp8 | BIT(2)))
goto exit_fail;
r8712_read32(adapter, TCR);
/* 4.polling IMEM Ready */
i = 100;
tmp16 = r8712_read16(adapter, TCR);
while (((tmp16 & _IMEM_RDY) == 0) && (i > 0)) {
msleep(20);
tmp16 = r8712_read16(adapter, TCR);
i--;
}
if (i == 0) {
r8712_write16(adapter, 0x10250348, 0xc000);
r8712_write16(adapter, 0x10250348, 0xc001);
r8712_write16(adapter, 0x10250348, 0x2000);
r8712_write16(adapter, 0x10250348, 0x2001);
r8712_write16(adapter, 0x10250348, 0x2002);
r8712_write16(adapter, 0x10250348, 0x2003);
goto exit_fail;
}
/* 5.Download DMEM code size and Load EMEM Code Section */
memset(txdesc, 0, TXDESC_SIZE);
txdesc->txdw0 |= cpu_to_le32(fwhdr.fw_priv_sz & 0x0000ffff);
txdesc->txdw0 |= cpu_to_le32(BIT(28));
memcpy(payload, &fwhdr.fwpriv, fwhdr.fw_priv_sz);
r8712_write_mem(adapter, RTL8712_DMA_VOQ,
fwhdr.fw_priv_sz + TXDESC_SIZE, (u8 *)txdesc);
/* polling dmem code done */
i = 100;
tmp16 = r8712_read16(adapter, TCR);
while (((tmp16 & _DMEM_CODE_DONE) == 0) && (i > 0)) {
msleep(20);
tmp16 = r8712_read16(adapter, TCR);
i--;
}
if (i == 0)
goto exit_fail;
tmp8 = r8712_read8(adapter, 0x1025000A);
if (tmp8 & BIT(4)) /* When boot from EEPROM,
* & FW need more time to read EEPROM
*/
i = 60;
else /* boot from EFUSE */
i = 30;
tmp16 = r8712_read16(adapter, TCR);
while (((tmp16 & _FWRDY) == 0) && (i > 0)) {
msleep(100);
tmp16 = r8712_read16(adapter, TCR);
i--;
}
if (i == 0)
goto exit_fail;
} else {
goto exit_fail;
}
ret = _SUCCESS;
exit_fail:
kfree(tmpchar);
return ret;
}
uint rtl8712_hal_init(struct _adapter *padapter)
{
u32 val32;
int i;
/* r8712 firmware download */
if (rtl8712_dl_fw(padapter) != _SUCCESS)
return _FAIL;
netdev_info(padapter->pnetdev, "1 RCR=0x%x\n",
r8712_read32(padapter, RCR));
val32 = r8712_read32(padapter, RCR);
r8712_write32(padapter, RCR, (val32 | BIT(26))); /* Enable RX TCP
* Checksum offload
*/
netdev_info(padapter->pnetdev, "2 RCR=0x%x\n",
r8712_read32(padapter, RCR));
val32 = r8712_read32(padapter, RCR);
r8712_write32(padapter, RCR, (val32 | BIT(25))); /* Append PHY status */
val32 = r8712_read32(padapter, 0x10250040);
r8712_write32(padapter, 0x10250040, (val32 & 0x00FFFFFF));
/* for usb rx aggregation */
r8712_write8(padapter, 0x102500B5, r8712_read8(padapter, 0x102500B5) |
BIT(0)); /* page = 128bytes */
r8712_write8(padapter, 0x102500BD, r8712_read8(padapter, 0x102500BD) |
BIT(7)); /* enable usb rx aggregation */
r8712_write8(padapter, 0x102500D9, 1); /* TH=1 => means that invalidate
* usb rx aggregation
*/
r8712_write8(padapter, 0x1025FE5B, 0x04); /* 1.7ms/4 */
/* Fix the RX FIFO issue(USB error) */
r8712_write8(padapter, 0x1025fe5C, r8712_read8(padapter, 0x1025fe5C)
| BIT(7));
for (i = 0; i < ETH_ALEN; i++)
padapter->eeprompriv.mac_addr[i] = r8712_read8(padapter,
MACID + i);
return _SUCCESS;
}
uint rtl8712_hal_deinit(struct _adapter *padapter)
{
r8712_write8(padapter, RF_CTRL, 0x00);
/* Turn off BB */
msleep(20);
/* Turn off MAC */
r8712_write8(padapter, SYS_CLKR + 1, 0x38); /* Switch Control Path */
r8712_write8(padapter, SYS_FUNC_EN + 1, 0x70);
r8712_write8(padapter, PMC_FSM, 0x06); /* Enable Loader Data Keep */
r8712_write8(padapter, SYS_ISO_CTRL, 0xF9); /* Isolation signals from
* CORE, PLL
*/
r8712_write8(padapter, SYS_ISO_CTRL + 1, 0xe8); /* Enable EFUSE 1.2V */
r8712_write8(padapter, AFE_PLL_CTRL, 0x00); /* Disable AFE PLL. */
r8712_write8(padapter, LDOA15_CTRL, 0x54); /* Disable A15V */
r8712_write8(padapter, SYS_FUNC_EN + 1, 0x50); /* Disable E-Fuse 1.2V */
r8712_write8(padapter, LDOV12D_CTRL, 0x24); /* Disable LDO12(for CE) */
r8712_write8(padapter, AFE_MISC, 0x30); /* Disable AFE BG&MB */
/* Option for Disable 1.6V LDO. */
r8712_write8(padapter, SPS0_CTRL, 0x56); /* Disable 1.6V LDO */
r8712_write8(padapter, SPS0_CTRL + 1, 0x43); /* Set SW PFM */
return _SUCCESS;
}
uint rtl871x_hal_init(struct _adapter *padapter)
{
padapter->hw_init_completed = false;
if (!padapter->halpriv.hal_bus_init)
return _FAIL;
if (padapter->halpriv.hal_bus_init(padapter) != _SUCCESS)
return _FAIL;
if (rtl8712_hal_init(padapter) == _SUCCESS) {
padapter->hw_init_completed = true;
} else {
padapter->hw_init_completed = false;
return _FAIL;
}
return _SUCCESS;
}