--- /dev/null
+/******************************************************************************
+ *
+ * Copyright(c) 2009-2014 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.
+ *
+ * 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 "../wifi.h"
+#include "../pci.h"
+#include "../base.h"
+#include "fw_common.h"
+#include <linux/module.h>
+
+void rtl8723_enable_fw_download(struct ieee80211_hw *hw, bool enable)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ u8 tmp;
+
+ if (enable) {
+ tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+ rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN + 1,
+ tmp | 0x04);
+
+ tmp = rtl_read_byte(rtlpriv, REG_MCUFWDL);
+ rtl_write_byte(rtlpriv, REG_MCUFWDL, tmp | 0x01);
+
+ tmp = rtl_read_byte(rtlpriv, REG_MCUFWDL + 2);
+ rtl_write_byte(rtlpriv, REG_MCUFWDL + 2, tmp & 0xf7);
+ } else {
+ tmp = rtl_read_byte(rtlpriv, REG_MCUFWDL);
+ rtl_write_byte(rtlpriv, REG_MCUFWDL, tmp & 0xfe);
+
+ rtl_write_byte(rtlpriv, REG_MCUFWDL + 1, 0x00);
+ }
+}
+EXPORT_SYMBOL_GPL(rtl8723_enable_fw_download);
+
+void rtl8723_fw_block_write(struct ieee80211_hw *hw,
+ const u8 *buffer, u32 size)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ u32 blocksize = sizeof(u32);
+ u8 *bufferptr = (u8 *)buffer;
+ u32 *pu4byteptr = (u32 *)buffer;
+ u32 i, offset, blockcount, remainsize;
+
+ blockcount = size / blocksize;
+ remainsize = size % blocksize;
+
+ for (i = 0; i < blockcount; i++) {
+ offset = i * blocksize;
+ rtl_write_dword(rtlpriv, (FW_8192C_START_ADDRESS + offset),
+ *(pu4byteptr + i));
+ }
+ if (remainsize) {
+ offset = blockcount * blocksize;
+ bufferptr += offset;
+ for (i = 0; i < remainsize; i++) {
+ rtl_write_byte(rtlpriv,
+ (FW_8192C_START_ADDRESS + offset + i),
+ *(bufferptr + i));
+ }
+ }
+}
+EXPORT_SYMBOL_GPL(rtl8723_fw_block_write);
+
+void rtl8723_fw_page_write(struct ieee80211_hw *hw,
+ u32 page, const u8 *buffer, u32 size)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ u8 value8;
+ u8 u8page = (u8) (page & 0x07);
+
+ value8 = (rtl_read_byte(rtlpriv, REG_MCUFWDL + 2) & 0xF8) | u8page;
+
+ rtl_write_byte(rtlpriv, (REG_MCUFWDL + 2), value8);
+ rtl8723_fw_block_write(hw, buffer, size);
+}
+EXPORT_SYMBOL_GPL(rtl8723_fw_page_write);
+
+void rtl8723_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;
+}
+EXPORT_SYMBOL(rtl8723_fill_dummy);
+
+void rtl8723_write_fw(struct ieee80211_hw *hw,
+ enum version_8723e version,
+ u8 *buffer, u32 size, u8 max_page)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ u8 *bufferptr = buffer;
+ u32 page_nums, remain_size;
+ u32 page, offset;
+
+ RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE, "FW size is %d bytes,\n", size);
+
+ rtl8723_fill_dummy(bufferptr, &size);
+
+ page_nums = size / FW_8192C_PAGE_SIZE;
+ remain_size = size % FW_8192C_PAGE_SIZE;
+
+ if (page_nums > max_page) {
+ RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+ "Page numbers should not greater than %d\n", max_page);
+ }
+ for (page = 0; page < page_nums; page++) {
+ offset = page * FW_8192C_PAGE_SIZE;
+ rtl8723_fw_page_write(hw, page, (bufferptr + offset),
+ FW_8192C_PAGE_SIZE);
+ }
+
+ if (remain_size) {
+ offset = page_nums * FW_8192C_PAGE_SIZE;
+ page = page_nums;
+ rtl8723_fw_page_write(hw, page, (bufferptr + offset),
+ remain_size);
+ }
+ RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE, "FW write done.\n");
+}
+EXPORT_SYMBOL_GPL(rtl8723_write_fw);
+
+void rtl8723ae_firmware_selfreset(struct ieee80211_hw *hw)
+{
+ u8 u1b_tmp;
+ u8 delay = 100;
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+ rtl_write_byte(rtlpriv, REG_HMETFR + 3, 0x20);
+ u1b_tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+
+ while (u1b_tmp & BIT(2)) {
+ delay--;
+ if (delay == 0)
+ break;
+ udelay(50);
+ u1b_tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+ }
+ if (delay == 0) {
+ u1b_tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+ rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN + 1,
+ u1b_tmp&(~BIT(2)));
+ }
+}
+EXPORT_SYMBOL_GPL(rtl8723ae_firmware_selfreset);
+
+void rtl8723be_firmware_selfreset(struct ieee80211_hw *hw)
+{
+ u8 u1b_tmp;
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+
+ u1b_tmp = rtl_read_byte(rtlpriv, REG_RSV_CTRL + 1);
+ rtl_write_byte(rtlpriv, REG_RSV_CTRL + 1, (u1b_tmp & (~BIT(0))));
+
+ u1b_tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+ rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN + 1, (u1b_tmp & (~BIT(2))));
+ udelay(50);
+
+ u1b_tmp = rtl_read_byte(rtlpriv, REG_RSV_CTRL + 1);
+ rtl_write_byte(rtlpriv, REG_RSV_CTRL + 1, (u1b_tmp | BIT(0)));
+
+ u1b_tmp = rtl_read_byte(rtlpriv, REG_SYS_FUNC_EN + 1);
+ rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN + 1, (u1b_tmp | BIT(2)));
+
+ RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
+ " _8051Reset8723be(): 8051 reset success .\n");
+}
+EXPORT_SYMBOL_GPL(rtl8723be_firmware_selfreset);
+
+int rtl8723_fw_free_to_go(struct ieee80211_hw *hw, bool is_8723be,
+ int max_count)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ int err = -EIO;
+ u32 counter = 0;
+ u32 value32;
+
+ do {
+ value32 = rtl_read_dword(rtlpriv, REG_MCUFWDL);
+ } while ((counter++ < max_count) &&
+ (!(value32 & FWDL_CHKSUM_RPT)));
+
+ if (counter >= max_count) {
+ RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+ "chksum report fail ! REG_MCUFWDL:0x%08x .\n",
+ value32);
+ goto exit;
+ }
+ RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE,
+ "Checksum report OK ! REG_MCUFWDL:0x%08x .\n", value32);
+
+ value32 = rtl_read_dword(rtlpriv, REG_MCUFWDL) | MCUFWDL_RDY;
+ value32 &= ~WINTINI_RDY;
+ rtl_write_dword(rtlpriv, REG_MCUFWDL, value32);
+
+ if (is_8723be)
+ rtl8723be_firmware_selfreset(hw);
+ counter = 0;
+
+ do {
+ value32 = rtl_read_dword(rtlpriv, REG_MCUFWDL);
+ if (value32 & WINTINI_RDY) {
+ RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE,
+ "Polling FW ready success!! REG_MCUFWDL:0x%08x .\n",
+ value32);
+ err = 0;
+ goto exit;
+ }
+
+ mdelay(FW_8192C_POLLING_DELAY);
+
+ } while (counter++ < max_count);
+
+ RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+ "Polling FW ready fail!! REG_MCUFWDL:0x%08x .\n",
+ value32);
+
+exit:
+ return err;
+}
+EXPORT_SYMBOL_GPL(rtl8723_fw_free_to_go);
+
+int rtl8723_download_fw(struct ieee80211_hw *hw,
+ bool is_8723be, int max_count)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+ struct rtl8723e_firmware_header *pfwheader;
+ u8 *pfwdata;
+ u32 fwsize;
+ int err;
+ enum version_8723e version = rtlhal->version;
+ int max_page;
+
+ if (!rtlhal->pfirmware)
+ return 1;
+
+ pfwheader = (struct rtl8723e_firmware_header *)rtlhal->pfirmware;
+ pfwdata = rtlhal->pfirmware;
+ fwsize = rtlhal->fwsize;
+
+ if (!is_8723be)
+ max_page = 6;
+ else
+ max_page = 8;
+ if (rtlpriv->cfg->ops->is_fw_header(pfwheader)) {
+ RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
+ "Firmware Version(%d), Signature(%#x), Size(%d)\n",
+ pfwheader->version, pfwheader->signature,
+ (int)sizeof(struct rtl8723e_firmware_header));
+
+ pfwdata = pfwdata + sizeof(struct rtl8723e_firmware_header);
+ fwsize = fwsize - sizeof(struct rtl8723e_firmware_header);
+ }
+
+ if (rtl_read_byte(rtlpriv, REG_MCUFWDL)&BIT(7)) {
+ if (is_8723be)
+ rtl8723be_firmware_selfreset(hw);
+ else
+ rtl8723ae_firmware_selfreset(hw);
+ rtl_write_byte(rtlpriv, REG_MCUFWDL, 0x00);
+ }
+ rtl8723_enable_fw_download(hw, true);
+ rtl8723_write_fw(hw, version, pfwdata, fwsize, max_page);
+ rtl8723_enable_fw_download(hw, false);
+
+ err = rtl8723_fw_free_to_go(hw, is_8723be, max_count);
+ if (err) {
+ RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+ "Firmware is not ready to run!\n");
+ } else {
+ RT_TRACE(rtlpriv, COMP_FW, DBG_TRACE,
+ "Firmware is ready to run!\n");
+ }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rtl8723_download_fw);
+
+bool rtl8723_cmd_send_packet(struct ieee80211_hw *hw,
+ struct sk_buff *skb)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
+ struct rtl8192_tx_ring *ring;
+ struct rtl_tx_desc *pdesc;
+ struct sk_buff *pskb = NULL;
+ u8 own;
+ unsigned long flags;
+
+ ring = &rtlpci->tx_ring[BEACON_QUEUE];
+
+ pskb = __skb_dequeue(&ring->queue);
+ if (pskb)
+ kfree_skb(pskb);
+
+ spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
+
+ pdesc = &ring->desc[0];
+ own = (u8) rtlpriv->cfg->ops->get_desc((u8 *)pdesc, true, HW_DESC_OWN);
+
+ rtlpriv->cfg->ops->fill_tx_cmddesc(hw, (u8 *)pdesc, 1, 1, skb);
+
+ __skb_queue_tail(&ring->queue, skb);
+
+ spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags);
+
+ rtlpriv->cfg->ops->tx_polling(hw, BEACON_QUEUE);
+
+ return true;
+}
+EXPORT_SYMBOL_GPL(rtl8723_cmd_send_packet);
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