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- /******************************************************************************
- * hal_init.c
- *
- * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
- * Linux device driver for RTL8192SU
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * 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 49152 /*default = 49152 (48k)*/
- static void rtl871x_load_fw_cb(const struct firmware *firmware, void *context)
- {
- struct _adapter *padapter = context;
- complete(&padapter->rtl8712_fw_ready);
- if (!firmware) {
- struct usb_device *udev = padapter->dvobjpriv.pusbdev;
- struct usb_interface *pusb_intf = padapter->pusb_intf;
- dev_err(&udev->dev, "r8712u: Firmware request failed\n");
- usb_put_dev(udev);
- usb_set_intfdata(pusb_intf, NULL);
- return;
- }
- padapter->fw = firmware;
- /* firmware available - start netdev */
- register_netdev(padapter->pnetdev);
- }
- 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 *padapter, const u8 **ppmappedfw)
- {
- const struct firmware **praw = &padapter->fw;
- if (padapter->fw->size > 200000) {
- dev_err(&padapter->pnetdev->dev, "r8172u: Badfw->size of %d\n",
- (int)padapter->fw->size);
- return 0;
- }
- *ppmappedfw = (*praw)->data;
- return (*praw)->size;
- }
- static void fill_fwpriv(struct _adapter *padapter, struct fw_priv *pfwpriv)
- {
- struct dvobj_priv *pdvobj = &padapter->dvobjpriv;
- struct registry_priv *pregpriv = &padapter->registrypriv;
- memset(pfwpriv, 0, sizeof(struct fw_priv));
- /* todo: check if needs endian conversion */
- pfwpriv->hci_sel = RTL8712_HCI_TYPE_72USB;
- pfwpriv->usb_ep_num = (u8)pdvobj->nr_endpoint;
- pfwpriv->bw_40MHz_en = pregpriv->cbw40_enable;
- switch (pregpriv->rf_config) {
- case RTL8712_RF_1T1R:
- pfwpriv->rf_config = RTL8712_RFC_1T1R;
- break;
- case RTL8712_RF_2T2R:
- pfwpriv->rf_config = RTL8712_RFC_2T2R;
- break;
- case RTL8712_RF_1T2R:
- default:
- pfwpriv->rf_config = RTL8712_RFC_1T2R;
- }
- pfwpriv->mp_mode = (pregpriv->mp_mode == 1) ? 1 : 0;
- pfwpriv->vcsType = pregpriv->vrtl_carrier_sense; /* 0:off 1:on 2:auto */
- pfwpriv->vcsMode = pregpriv->vcs_type; /* 1:RTS/CTS 2:CTS to self */
- /* default enable turboMode */
- pfwpriv->turboMode = ((pregpriv->wifi_test == 1) ? 0 : 1);
- pfwpriv->lowPowerMode = pregpriv->low_power;
- }
- static void update_fwhdr(struct fw_hdr *pfwhdr, const u8 *pmappedfw)
- {
- pfwhdr->signature = le16_to_cpu(*(u16 *)pmappedfw);
- pfwhdr->version = le16_to_cpu(*(u16 *)(pmappedfw + 2));
- /* define the size of boot loader */
- pfwhdr->dmem_size = le32_to_cpu(*(uint *)(pmappedfw + 4));
- /* define the size of FW in IMEM */
- pfwhdr->img_IMEM_size = le32_to_cpu(*(uint *)(pmappedfw + 8));
- /* define the size of FW in SRAM */
- pfwhdr->img_SRAM_size = le32_to_cpu(*(uint *)(pmappedfw + 12));
- /* define the size of DMEM variable */
- pfwhdr->fw_priv_sz = le32_to_cpu(*(uint *)(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 = FIELD_OFFSET(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 *padapter)
- {
- 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 *pmappedfw = NULL;
- u8 *ptmpchar = NULL, *ppayload, *ptr;
- struct tx_desc *ptx_desc;
- u32 txdscp_sz = sizeof(struct tx_desc);
- u8 ret = _FAIL;
- ulfilelength = rtl871x_open_fw(padapter, &pmappedfw);
- if (pmappedfw && (ulfilelength > 0)) {
- update_fwhdr(&fwhdr, pmappedfw);
- if (chk_fwhdr(&fwhdr, ulfilelength) == _FAIL)
- return ret;
- fill_fwpriv(padapter, &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;
- ptmpchar = kmalloc(maxlen + FWBUFF_ALIGN_SZ, GFP_KERNEL);
- if (!ptmpchar)
- return ret;
- ptx_desc = (struct tx_desc *)(ptmpchar + FWBUFF_ALIGN_SZ -
- ((addr_t)(ptmpchar) & (FWBUFF_ALIGN_SZ - 1)));
- ppayload = (u8 *)(ptx_desc) + txdscp_sz;
- ptr = (u8 *)pmappedfw + FIELD_OFFSET(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(ptx_desc, 0, TXDESC_SIZE);
- if (imem_sz > MAX_DUMP_FWSZ/*49152*/) {
- dump_imem_sz = MAX_DUMP_FWSZ;
- } else {
- dump_imem_sz = imem_sz;
- ptx_desc->txdw0 |= cpu_to_le32(BIT(28));
- }
- ptx_desc->txdw0 |= cpu_to_le32(dump_imem_sz &
- 0x0000ffff);
- memcpy(ppayload, ptr, dump_imem_sz);
- r8712_write_mem(padapter, RTL8712_DMA_VOQ,
- dump_imem_sz + TXDESC_SIZE,
- (u8 *)ptx_desc);
- ptr += dump_imem_sz;
- imem_sz -= dump_imem_sz;
- } while (imem_sz > 0);
- i = 10;
- tmp16 = r8712_read16(padapter, TCR);
- while (((tmp16 & _IMEM_CODE_DONE) == 0) && (i > 0)) {
- usleep_range(10, 1000);
- tmp16 = r8712_read16(padapter, 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(ptx_desc, 0, TXDESC_SIZE);
- if (emem_sz > MAX_DUMP_FWSZ) /* max=48k */
- dump_emem_sz = MAX_DUMP_FWSZ;
- else {
- dump_emem_sz = emem_sz;
- ptx_desc->txdw0 |= cpu_to_le32(BIT(28));
- }
- ptx_desc->txdw0 |= cpu_to_le32(dump_emem_sz &
- 0x0000ffff);
- memcpy(ppayload, ptr, dump_emem_sz);
- r8712_write_mem(padapter, RTL8712_DMA_VOQ,
- dump_emem_sz + TXDESC_SIZE, (u8 *)ptx_desc);
- ptr += dump_emem_sz;
- emem_sz -= dump_emem_sz;
- } while (emem_sz > 0);
- i = 5;
- tmp16 = r8712_read16(padapter, TCR);
- while (((tmp16 & _EMEM_CODE_DONE) == 0) && (i > 0)) {
- usleep_range(10, 1000);
- tmp16 = r8712_read16(padapter, TCR);
- i--;
- }
- if (i == 0 || (tmp16 & _EMEM_CHK_RPT) == 0)
- goto exit_fail;
- /* 3.Enable CPU */
- tmp8 = r8712_read8(padapter, SYS_CLKR);
- r8712_write8(padapter, SYS_CLKR, tmp8 | BIT(2));
- tmp8_a = r8712_read8(padapter, SYS_CLKR);
- if (tmp8_a != (tmp8 | BIT(2)))
- goto exit_fail;
- tmp8 = r8712_read8(padapter, SYS_FUNC_EN + 1);
- r8712_write8(padapter, SYS_FUNC_EN + 1, tmp8 | BIT(2));
- tmp8_a = r8712_read8(padapter, SYS_FUNC_EN + 1);
- if (tmp8_a != (tmp8 | BIT(2)))
- goto exit_fail;
- r8712_read32(padapter, TCR);
- /* 4.polling IMEM Ready */
- i = 100;
- tmp16 = r8712_read16(padapter, TCR);
- while (((tmp16 & _IMEM_RDY) == 0) && (i > 0)) {
- msleep(20);
- tmp16 = r8712_read16(padapter, TCR);
- i--;
- }
- if (i == 0) {
- r8712_write16(padapter, 0x10250348, 0xc000);
- r8712_write16(padapter, 0x10250348, 0xc001);
- r8712_write16(padapter, 0x10250348, 0x2000);
- r8712_write16(padapter, 0x10250348, 0x2001);
- r8712_write16(padapter, 0x10250348, 0x2002);
- r8712_write16(padapter, 0x10250348, 0x2003);
- goto exit_fail;
- }
- /* 5.Download DMEM code size and Load EMEM Code Section */
- memset(ptx_desc, 0, TXDESC_SIZE);
- ptx_desc->txdw0 |= cpu_to_le32(fwhdr.fw_priv_sz & 0x0000ffff);
- ptx_desc->txdw0 |= cpu_to_le32(BIT(28));
- memcpy(ppayload, &fwhdr.fwpriv, fwhdr.fw_priv_sz);
- r8712_write_mem(padapter, RTL8712_DMA_VOQ,
- fwhdr.fw_priv_sz + TXDESC_SIZE, (u8 *)ptx_desc);
- /* polling dmem code done */
- i = 100;
- tmp16 = r8712_read16(padapter, TCR);
- while (((tmp16 & _DMEM_CODE_DONE) == 0) && (i > 0)) {
- msleep(20);
- tmp16 = r8712_read16(padapter, TCR);
- i--;
- }
- if (i == 0)
- goto exit_fail;
- tmp8 = r8712_read8(padapter, 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(padapter, TCR);
- while (((tmp16 & _FWRDY) == 0) && (i > 0)) {
- msleep(100);
- tmp16 = r8712_read16(padapter, TCR);
- i--;
- }
- if (i == 0)
- goto exit_fail;
- } else {
- goto exit_fail;
- }
- ret = _SUCCESS;
- exit_fail:
- kfree(ptmpchar);
- 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 = 0;
- 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 < 6; 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;
- }
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