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- /******************************************************************************
- *
- * Copyright(c) 2009-2013 Realtek Corporation.
- *
- * 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
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * wlanfae <wlanfae@realtek.com>
- * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
- * Hsinchu 300, Taiwan.
- *
- * Larry Finger <Larry.Finger@lwfinger.net>
- *
- *****************************************************************************/
- #include "fw.h"
- #include "drv_types.h"
- #include "usb_ops_linux.h"
- #include "rtl8188e_spec.h"
- #include "rtl8188e_hal.h"
- #include <linux/firmware.h>
- #include <linux/kmemleak.h>
- static void _rtl88e_enable_fw_download(struct adapter *adapt, bool enable)
- {
- u8 tmp;
- if (enable) {
- tmp = usb_read8(adapt, REG_MCUFWDL);
- usb_write8(adapt, REG_MCUFWDL, tmp | 0x01);
- tmp = usb_read8(adapt, REG_MCUFWDL + 2);
- usb_write8(adapt, REG_MCUFWDL + 2, tmp & 0xf7);
- } else {
- tmp = usb_read8(adapt, REG_MCUFWDL);
- usb_write8(adapt, REG_MCUFWDL, tmp & 0xfe);
- usb_write8(adapt, REG_MCUFWDL + 1, 0x00);
- }
- }
- static void _rtl88e_fw_block_write(struct adapter *adapt,
- const u8 *buffer, u32 size)
- {
- u32 blk_sz = sizeof(u32);
- u8 *buf_ptr = (u8 *)buffer;
- u32 *pu4BytePtr = (u32 *)buffer;
- u32 i, offset, blk_cnt, remain;
- blk_cnt = size / blk_sz;
- remain = size % blk_sz;
- for (i = 0; i < blk_cnt; i++) {
- offset = i * blk_sz;
- usb_write32(adapt, (FW_8192C_START_ADDRESS + offset),
- *(pu4BytePtr + i));
- }
- if (remain) {
- offset = blk_cnt * blk_sz;
- buf_ptr += offset;
- for (i = 0; i < remain; i++) {
- usb_write8(adapt, (FW_8192C_START_ADDRESS +
- offset + i), *(buf_ptr + i));
- }
- }
- }
- static void _rtl88e_fill_dummy(u8 *pfwbuf, u32 *pfwlen)
- {
- u32 fwlen = *pfwlen;
- u8 remain = (u8)(fwlen % 4);
- remain = (remain == 0) ? 0 : (4 - remain);
- while (remain > 0) {
- pfwbuf[fwlen] = 0;
- fwlen++;
- remain--;
- }
- *pfwlen = fwlen;
- }
- static void _rtl88e_fw_page_write(struct adapter *adapt,
- u32 page, const u8 *buffer, u32 size)
- {
- u8 value8;
- u8 u8page = (u8)(page & 0x07);
- value8 = (usb_read8(adapt, REG_MCUFWDL + 2) & 0xF8) | u8page;
- usb_write8(adapt, (REG_MCUFWDL + 2), value8);
- _rtl88e_fw_block_write(adapt, buffer, size);
- }
- static void _rtl88e_write_fw(struct adapter *adapt, u8 *buffer, u32 size)
- {
- u8 *buf_ptr = buffer;
- u32 page_no, remain;
- u32 page, offset;
- _rtl88e_fill_dummy(buf_ptr, &size);
- page_no = size / FW_8192C_PAGE_SIZE;
- remain = size % FW_8192C_PAGE_SIZE;
- for (page = 0; page < page_no; page++) {
- offset = page * FW_8192C_PAGE_SIZE;
- _rtl88e_fw_page_write(adapt, page, (buf_ptr + offset),
- FW_8192C_PAGE_SIZE);
- }
- if (remain) {
- offset = page_no * FW_8192C_PAGE_SIZE;
- page = page_no;
- _rtl88e_fw_page_write(adapt, page, (buf_ptr + offset), remain);
- }
- }
- static void rtl88e_firmware_selfreset(struct adapter *adapt)
- {
- u8 u1b_tmp;
- u1b_tmp = usb_read8(adapt, REG_SYS_FUNC_EN+1);
- usb_write8(adapt, REG_SYS_FUNC_EN+1, (u1b_tmp & (~BIT(2))));
- usb_write8(adapt, REG_SYS_FUNC_EN+1, (u1b_tmp | BIT(2)));
- }
- static int _rtl88e_fw_free_to_go(struct adapter *adapt)
- {
- int err = -EIO;
- u32 counter = 0;
- u32 value32;
- do {
- value32 = usb_read32(adapt, REG_MCUFWDL);
- if (value32 & FWDL_ChkSum_rpt)
- break;
- } while (counter++ < POLLING_READY_TIMEOUT_COUNT);
- if (counter >= POLLING_READY_TIMEOUT_COUNT)
- goto exit;
- value32 = usb_read32(adapt, REG_MCUFWDL);
- value32 |= MCUFWDL_RDY;
- value32 &= ~WINTINI_RDY;
- usb_write32(adapt, REG_MCUFWDL, value32);
- rtl88e_firmware_selfreset(adapt);
- counter = 0;
- do {
- value32 = usb_read32(adapt, REG_MCUFWDL);
- if (value32 & WINTINI_RDY) {
- err = 0;
- goto exit;
- }
- udelay(FW_8192C_POLLING_DELAY);
- } while (counter++ < POLLING_READY_TIMEOUT_COUNT);
- exit:
- return err;
- }
- int rtl88eu_download_fw(struct adapter *adapt)
- {
- struct hal_data_8188e *rtlhal = GET_HAL_DATA(adapt);
- struct dvobj_priv *dvobj = adapter_to_dvobj(adapt);
- struct device *device = dvobj_to_dev(dvobj);
- const struct firmware *fw;
- const char fw_name[] = "rtlwifi/rtl8188eufw.bin";
- struct rtl92c_firmware_header *pfwheader = NULL;
- u8 *pfwdata;
- u32 fwsize;
- if (request_firmware(&fw, fw_name, device)) {
- dev_err(device, "Firmware %s not available\n", fw_name);
- return -ENOENT;
- }
- if (fw->size > FW_8188E_SIZE) {
- dev_err(device, "Firmware size exceed 0x%X. Check it.\n",
- FW_8188E_SIZE);
- return -1;
- }
- pfwdata = kzalloc(FW_8188E_SIZE, GFP_KERNEL);
- if (!pfwdata)
- return -ENOMEM;
- rtlhal->pfirmware = pfwdata;
- memcpy(rtlhal->pfirmware, fw->data, fw->size);
- rtlhal->fwsize = fw->size;
- release_firmware(fw);
- fwsize = rtlhal->fwsize;
- pfwheader = (struct rtl92c_firmware_header *)pfwdata;
- if (IS_FW_HEADER_EXIST(pfwheader)) {
- pfwdata = pfwdata + 32;
- fwsize = fwsize - 32;
- }
- if (usb_read8(adapt, REG_MCUFWDL) & RAM_DL_SEL) {
- usb_write8(adapt, REG_MCUFWDL, 0);
- rtl88e_firmware_selfreset(adapt);
- }
- _rtl88e_enable_fw_download(adapt, true);
- usb_write8(adapt, REG_MCUFWDL, usb_read8(adapt, REG_MCUFWDL) | FWDL_ChkSum_rpt);
- _rtl88e_write_fw(adapt, pfwdata, fwsize);
- _rtl88e_enable_fw_download(adapt, false);
- return _rtl88e_fw_free_to_go(adapt);
- }
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