349 lines
9.4 KiB
C
349 lines
9.4 KiB
C
/******************************************************************************
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* Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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*
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* Contact Information:
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* wlanfae <wlanfae@realtek.com>
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******************************************************************************/
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#include "rtl_core.h"
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#include "r8192E_hw.h"
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#include "r8192E_hwimg.h"
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#include "r8192E_firmware.h"
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#include <linux/firmware.h>
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void firmware_init_param(struct net_device *dev)
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{
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struct r8192_priv *priv = rtllib_priv(dev);
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struct rt_firmware *pfirmware = priv->pFirmware;
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pfirmware->cmdpacket_frag_thresold = GET_COMMAND_PACKET_FRAG_THRESHOLD(
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MAX_TRANSMIT_BUFFER_SIZE);
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}
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static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address,
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u32 buffer_len)
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{
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struct r8192_priv *priv = rtllib_priv(dev);
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bool rt_status = true;
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u16 frag_threshold;
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u16 frag_length, frag_offset = 0;
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int i;
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struct rt_firmware *pfirmware = priv->pFirmware;
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struct sk_buff *skb;
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unsigned char *seg_ptr;
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struct cb_desc *tcb_desc;
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u8 bLastIniPkt;
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firmware_init_param(dev);
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frag_threshold = pfirmware->cmdpacket_frag_thresold;
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do {
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if ((buffer_len - frag_offset) > frag_threshold) {
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frag_length = frag_threshold ;
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bLastIniPkt = 0;
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} else {
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frag_length = buffer_len - frag_offset;
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bLastIniPkt = 1;
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}
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skb = dev_alloc_skb(frag_length + 4);
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memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
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tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
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tcb_desc->queue_index = TXCMD_QUEUE;
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tcb_desc->bCmdOrInit = DESC_PACKET_TYPE_INIT;
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tcb_desc->bLastIniPkt = bLastIniPkt;
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seg_ptr = skb->data;
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for (i = 0; i < frag_length; i += 4) {
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*seg_ptr++ = ((i+0) < frag_length) ?
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code_virtual_address[i+3] : 0;
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*seg_ptr++ = ((i+1) < frag_length) ?
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code_virtual_address[i+2] : 0;
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*seg_ptr++ = ((i+2) < frag_length) ?
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code_virtual_address[i+1] : 0;
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*seg_ptr++ = ((i+3) < frag_length) ?
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code_virtual_address[i+0] : 0;
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}
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tcb_desc->txbuf_size = (u16)i;
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skb_put(skb, i);
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if (!priv->rtllib->check_nic_enough_desc(dev, tcb_desc->queue_index) ||
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(!skb_queue_empty(&priv->rtllib->skb_waitQ[tcb_desc->queue_index])) ||
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(priv->rtllib->queue_stop)) {
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RT_TRACE(COMP_FIRMWARE, "===================> tx "
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"full!\n");
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skb_queue_tail(&priv->rtllib->skb_waitQ
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[tcb_desc->queue_index], skb);
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} else {
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priv->rtllib->softmac_hard_start_xmit(skb, dev);
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}
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code_virtual_address += frag_length;
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frag_offset += frag_length;
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} while (frag_offset < buffer_len);
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write_nic_byte(dev, TPPoll, TPPoll_CQ);
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return rt_status;
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}
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static bool CPUcheck_maincodeok_turnonCPU(struct net_device *dev)
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{
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bool rt_status = true;
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u32 CPU_status = 0;
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unsigned long timeout;
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timeout = jiffies + MSECS(200);
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while (time_before(jiffies, timeout)) {
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CPU_status = read_nic_dword(dev, CPU_GEN);
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if (CPU_status & CPU_GEN_PUT_CODE_OK)
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break;
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mdelay(2);
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}
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if (!(CPU_status&CPU_GEN_PUT_CODE_OK)) {
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RT_TRACE(COMP_ERR, "Download Firmware: Put code fail!\n");
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goto CPUCheckMainCodeOKAndTurnOnCPU_Fail;
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} else {
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RT_TRACE(COMP_FIRMWARE, "Download Firmware: Put code ok!\n");
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}
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CPU_status = read_nic_dword(dev, CPU_GEN);
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write_nic_byte(dev, CPU_GEN,
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(u8)((CPU_status|CPU_GEN_PWR_STB_CPU)&0xff));
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mdelay(1);
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timeout = jiffies + MSECS(200);
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while (time_before(jiffies, timeout)) {
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CPU_status = read_nic_dword(dev, CPU_GEN);
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if (CPU_status&CPU_GEN_BOOT_RDY)
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break;
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mdelay(2);
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}
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if (!(CPU_status&CPU_GEN_BOOT_RDY))
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goto CPUCheckMainCodeOKAndTurnOnCPU_Fail;
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else
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RT_TRACE(COMP_FIRMWARE, "Download Firmware: Boot ready!\n");
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return rt_status;
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CPUCheckMainCodeOKAndTurnOnCPU_Fail:
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RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__);
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rt_status = false;
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return rt_status;
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}
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static bool CPUcheck_firmware_ready(struct net_device *dev)
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{
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bool rt_status = true;
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u32 CPU_status = 0;
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unsigned long timeout;
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timeout = jiffies + MSECS(20);
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while (time_before(jiffies, timeout)) {
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CPU_status = read_nic_dword(dev, CPU_GEN);
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if (CPU_status&CPU_GEN_FIRM_RDY)
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break;
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mdelay(2);
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}
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if (!(CPU_status&CPU_GEN_FIRM_RDY))
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goto CPUCheckFirmwareReady_Fail;
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else
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RT_TRACE(COMP_FIRMWARE, "Download Firmware: Firmware ready!\n");
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return rt_status;
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CPUCheckFirmwareReady_Fail:
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RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__);
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rt_status = false;
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return rt_status;
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}
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static bool firmware_check_ready(struct net_device *dev,
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u8 load_fw_status)
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{
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struct r8192_priv *priv = rtllib_priv(dev);
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struct rt_firmware *pfirmware = priv->pFirmware;
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bool rt_status = true;
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switch (load_fw_status) {
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case FW_INIT_STEP0_BOOT:
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pfirmware->firmware_status = FW_STATUS_1_MOVE_BOOT_CODE;
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break;
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case FW_INIT_STEP1_MAIN:
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pfirmware->firmware_status = FW_STATUS_2_MOVE_MAIN_CODE;
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rt_status = CPUcheck_maincodeok_turnonCPU(dev);
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if (rt_status)
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pfirmware->firmware_status = FW_STATUS_3_TURNON_CPU;
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else
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RT_TRACE(COMP_FIRMWARE, "CPUcheck_maincodeok_turnon"
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"CPU fail!\n");
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break;
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case FW_INIT_STEP2_DATA:
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pfirmware->firmware_status = FW_STATUS_4_MOVE_DATA_CODE;
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mdelay(1);
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rt_status = CPUcheck_firmware_ready(dev);
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if (rt_status)
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pfirmware->firmware_status = FW_STATUS_5_READY;
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else
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RT_TRACE(COMP_FIRMWARE, "CPUcheck_firmware_ready fail"
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"(%d)!\n", rt_status);
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break;
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default:
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rt_status = false;
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RT_TRACE(COMP_FIRMWARE, "Unknown firware status");
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break;
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}
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return rt_status;
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}
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bool init_firmware(struct net_device *dev)
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{
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struct r8192_priv *priv = rtllib_priv(dev);
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bool rt_status = true;
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u8 *firmware_img_buf[3] = { &Rtl8192PciEFwBootArray[0],
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&Rtl8192PciEFwMainArray[0],
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&Rtl8192PciEFwDataArray[0]};
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u32 firmware_img_len[3] = { sizeof(Rtl8192PciEFwBootArray),
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sizeof(Rtl8192PciEFwMainArray),
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sizeof(Rtl8192PciEFwDataArray)};
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u32 file_length = 0;
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u8 *mapped_file = NULL;
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u8 init_step = 0;
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enum opt_rst_type rst_opt = OPT_SYSTEM_RESET;
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enum firmware_init_step starting_state = FW_INIT_STEP0_BOOT;
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struct rt_firmware *pfirmware = priv->pFirmware;
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RT_TRACE(COMP_FIRMWARE, " PlatformInitFirmware()==>\n");
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if (pfirmware->firmware_status == FW_STATUS_0_INIT) {
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rst_opt = OPT_SYSTEM_RESET;
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starting_state = FW_INIT_STEP0_BOOT;
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} else if (pfirmware->firmware_status == FW_STATUS_5_READY) {
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rst_opt = OPT_FIRMWARE_RESET;
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starting_state = FW_INIT_STEP2_DATA;
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} else {
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RT_TRACE(COMP_FIRMWARE, "PlatformInitFirmware: undefined"
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" firmware state\n");
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}
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priv->firmware_source = FW_SOURCE_IMG_FILE;
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for (init_step = starting_state; init_step <= FW_INIT_STEP2_DATA;
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init_step++) {
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if (rst_opt == OPT_SYSTEM_RESET) {
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switch (priv->firmware_source) {
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case FW_SOURCE_IMG_FILE:
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{
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if (pfirmware->firmware_buf_size[init_step] == 0) {
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const char *fw_name[3] = { "RTL8192E/boot.img",
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"RTL8192E/main.img",
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"RTL8192E/data.img"
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};
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const struct firmware *fw_entry;
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int rc;
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rc = request_firmware(&fw_entry,
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fw_name[init_step], &priv->pdev->dev);
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if (rc < 0) {
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RT_TRACE(COMP_FIRMWARE, "request firm"
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"ware fail!\n");
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goto download_firmware_fail;
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}
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if (fw_entry->size >
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sizeof(pfirmware->firmware_buf[init_step])) {
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RT_TRACE(COMP_FIRMWARE, "img file size "
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"exceed the container struct "
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"buffer fail!\n");
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goto download_firmware_fail;
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}
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if (init_step != FW_INIT_STEP1_MAIN) {
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memcpy(pfirmware->firmware_buf[init_step],
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fw_entry->data, fw_entry->size);
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pfirmware->firmware_buf_size[init_step] =
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fw_entry->size;
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} else {
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memset(pfirmware->firmware_buf[init_step],
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0, 128);
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memcpy(&pfirmware->firmware_buf[init_step][128],
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fw_entry->data, fw_entry->size);
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pfirmware->firmware_buf_size[init_step] =
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fw_entry->size + 128;
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}
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if (rst_opt == OPT_SYSTEM_RESET)
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release_firmware(fw_entry);
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}
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mapped_file = pfirmware->firmware_buf[init_step];
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file_length = pfirmware->firmware_buf_size[init_step];
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break;
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}
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case FW_SOURCE_HEADER_FILE:
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mapped_file = firmware_img_buf[init_step];
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file_length = firmware_img_len[init_step];
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if (init_step == FW_INIT_STEP2_DATA) {
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memcpy(pfirmware->firmware_buf[init_step], mapped_file, file_length);
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pfirmware->firmware_buf_size[init_step] = file_length;
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}
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break;
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default:
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break;
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}
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} else if (rst_opt == OPT_FIRMWARE_RESET) {
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mapped_file = pfirmware->firmware_buf[init_step];
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file_length = pfirmware->firmware_buf_size[init_step];
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}
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rt_status = fw_download_code(dev, mapped_file, file_length);
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if (rt_status != true) {
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goto download_firmware_fail;
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}
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if (!firmware_check_ready(dev, init_step)) {
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goto download_firmware_fail;
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}
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}
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RT_TRACE(COMP_FIRMWARE, "Firmware Download Success\n");
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return rt_status;
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download_firmware_fail:
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RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__);
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rt_status = false;
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return rt_status;
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}
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