| /****************************************************************************** |
| * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved. |
| * |
| * 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> |
| ******************************************************************************/ |
| |
| #include "rtl_core.h" |
| #include "r8192E_hw.h" |
| #include "r8192E_hwimg.h" |
| #include "r8192E_firmware.h" |
| #include <linux/firmware.h> |
| |
| void firmware_init_param(struct net_device *dev) |
| { |
| struct r8192_priv *priv = rtllib_priv(dev); |
| struct rt_firmware *pfirmware = priv->pFirmware; |
| |
| pfirmware->cmdpacket_frag_thresold = GET_COMMAND_PACKET_FRAG_THRESHOLD( |
| MAX_TRANSMIT_BUFFER_SIZE); |
| } |
| |
| static bool fw_download_code(struct net_device *dev, u8 *code_virtual_address, |
| u32 buffer_len) |
| { |
| struct r8192_priv *priv = rtllib_priv(dev); |
| bool rt_status = true; |
| u16 frag_threshold; |
| u16 frag_length, frag_offset = 0; |
| int i; |
| |
| struct rt_firmware *pfirmware = priv->pFirmware; |
| struct sk_buff *skb; |
| unsigned char *seg_ptr; |
| struct cb_desc *tcb_desc; |
| u8 bLastIniPkt; |
| |
| firmware_init_param(dev); |
| frag_threshold = pfirmware->cmdpacket_frag_thresold; |
| do { |
| if ((buffer_len - frag_offset) > frag_threshold) { |
| frag_length = frag_threshold ; |
| bLastIniPkt = 0; |
| |
| } else { |
| frag_length = buffer_len - frag_offset; |
| bLastIniPkt = 1; |
| |
| } |
| |
| skb = dev_alloc_skb(frag_length + 4); |
| memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev)); |
| tcb_desc = (struct cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE); |
| tcb_desc->queue_index = TXCMD_QUEUE; |
| tcb_desc->bCmdOrInit = DESC_PACKET_TYPE_INIT; |
| tcb_desc->bLastIniPkt = bLastIniPkt; |
| |
| seg_ptr = skb->data; |
| for (i = 0; i < frag_length; i += 4) { |
| *seg_ptr++ = ((i+0) < frag_length) ? |
| code_virtual_address[i+3] : 0; |
| *seg_ptr++ = ((i+1) < frag_length) ? |
| code_virtual_address[i+2] : 0; |
| *seg_ptr++ = ((i+2) < frag_length) ? |
| code_virtual_address[i+1] : 0; |
| *seg_ptr++ = ((i+3) < frag_length) ? |
| code_virtual_address[i+0] : 0; |
| } |
| tcb_desc->txbuf_size = (u16)i; |
| skb_put(skb, i); |
| |
| if (!priv->rtllib->check_nic_enough_desc(dev, tcb_desc->queue_index) || |
| (!skb_queue_empty(&priv->rtllib->skb_waitQ[tcb_desc->queue_index])) || |
| (priv->rtllib->queue_stop)) { |
| RT_TRACE(COMP_FIRMWARE, "===================> tx " |
| "full!\n"); |
| skb_queue_tail(&priv->rtllib->skb_waitQ |
| [tcb_desc->queue_index], skb); |
| } else { |
| priv->rtllib->softmac_hard_start_xmit(skb, dev); |
| } |
| |
| code_virtual_address += frag_length; |
| frag_offset += frag_length; |
| |
| } while (frag_offset < buffer_len); |
| |
| write_nic_byte(dev, TPPoll, TPPoll_CQ); |
| |
| return rt_status; |
| } |
| |
| static bool CPUcheck_maincodeok_turnonCPU(struct net_device *dev) |
| { |
| bool rt_status = true; |
| u32 CPU_status = 0; |
| unsigned long timeout; |
| |
| timeout = jiffies + MSECS(200); |
| while (time_before(jiffies, timeout)) { |
| CPU_status = read_nic_dword(dev, CPU_GEN); |
| if (CPU_status & CPU_GEN_PUT_CODE_OK) |
| break; |
| mdelay(2); |
| } |
| |
| if (!(CPU_status&CPU_GEN_PUT_CODE_OK)) { |
| RT_TRACE(COMP_ERR, "Download Firmware: Put code fail!\n"); |
| goto CPUCheckMainCodeOKAndTurnOnCPU_Fail; |
| } else { |
| RT_TRACE(COMP_FIRMWARE, "Download Firmware: Put code ok!\n"); |
| } |
| |
| CPU_status = read_nic_dword(dev, CPU_GEN); |
| write_nic_byte(dev, CPU_GEN, |
| (u8)((CPU_status|CPU_GEN_PWR_STB_CPU)&0xff)); |
| mdelay(1); |
| |
| timeout = jiffies + MSECS(200); |
| while (time_before(jiffies, timeout)) { |
| CPU_status = read_nic_dword(dev, CPU_GEN); |
| if (CPU_status&CPU_GEN_BOOT_RDY) |
| break; |
| mdelay(2); |
| } |
| |
| if (!(CPU_status&CPU_GEN_BOOT_RDY)) |
| goto CPUCheckMainCodeOKAndTurnOnCPU_Fail; |
| else |
| RT_TRACE(COMP_FIRMWARE, "Download Firmware: Boot ready!\n"); |
| |
| return rt_status; |
| |
| CPUCheckMainCodeOKAndTurnOnCPU_Fail: |
| RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__); |
| rt_status = false; |
| return rt_status; |
| } |
| |
| static bool CPUcheck_firmware_ready(struct net_device *dev) |
| { |
| |
| bool rt_status = true; |
| u32 CPU_status = 0; |
| unsigned long timeout; |
| |
| timeout = jiffies + MSECS(20); |
| while (time_before(jiffies, timeout)) { |
| CPU_status = read_nic_dword(dev, CPU_GEN); |
| if (CPU_status&CPU_GEN_FIRM_RDY) |
| break; |
| mdelay(2); |
| } |
| |
| if (!(CPU_status&CPU_GEN_FIRM_RDY)) |
| goto CPUCheckFirmwareReady_Fail; |
| else |
| RT_TRACE(COMP_FIRMWARE, "Download Firmware: Firmware ready!\n"); |
| |
| return rt_status; |
| |
| CPUCheckFirmwareReady_Fail: |
| RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__); |
| rt_status = false; |
| return rt_status; |
| |
| } |
| |
| static bool firmware_check_ready(struct net_device *dev, |
| u8 load_fw_status) |
| { |
| struct r8192_priv *priv = rtllib_priv(dev); |
| struct rt_firmware *pfirmware = priv->pFirmware; |
| bool rt_status = true; |
| |
| switch (load_fw_status) { |
| case FW_INIT_STEP0_BOOT: |
| pfirmware->firmware_status = FW_STATUS_1_MOVE_BOOT_CODE; |
| break; |
| |
| case FW_INIT_STEP1_MAIN: |
| pfirmware->firmware_status = FW_STATUS_2_MOVE_MAIN_CODE; |
| |
| rt_status = CPUcheck_maincodeok_turnonCPU(dev); |
| if (rt_status) |
| pfirmware->firmware_status = FW_STATUS_3_TURNON_CPU; |
| else |
| RT_TRACE(COMP_FIRMWARE, "CPUcheck_maincodeok_turnon" |
| "CPU fail!\n"); |
| |
| break; |
| |
| case FW_INIT_STEP2_DATA: |
| pfirmware->firmware_status = FW_STATUS_4_MOVE_DATA_CODE; |
| mdelay(1); |
| |
| rt_status = CPUcheck_firmware_ready(dev); |
| if (rt_status) |
| pfirmware->firmware_status = FW_STATUS_5_READY; |
| else |
| RT_TRACE(COMP_FIRMWARE, "CPUcheck_firmware_ready fail" |
| "(%d)!\n", rt_status); |
| |
| break; |
| default: |
| rt_status = false; |
| RT_TRACE(COMP_FIRMWARE, "Unknown firware status"); |
| break; |
| } |
| |
| return rt_status; |
| } |
| |
| bool init_firmware(struct net_device *dev) |
| { |
| struct r8192_priv *priv = rtllib_priv(dev); |
| bool rt_status = true; |
| |
| u8 *firmware_img_buf[3] = { &Rtl8192PciEFwBootArray[0], |
| &Rtl8192PciEFwMainArray[0], |
| &Rtl8192PciEFwDataArray[0]}; |
| |
| u32 firmware_img_len[3] = { sizeof(Rtl8192PciEFwBootArray), |
| sizeof(Rtl8192PciEFwMainArray), |
| sizeof(Rtl8192PciEFwDataArray)}; |
| u32 file_length = 0; |
| u8 *mapped_file = NULL; |
| u8 init_step = 0; |
| enum opt_rst_type rst_opt = OPT_SYSTEM_RESET; |
| enum firmware_init_step starting_state = FW_INIT_STEP0_BOOT; |
| |
| struct rt_firmware *pfirmware = priv->pFirmware; |
| |
| RT_TRACE(COMP_FIRMWARE, " PlatformInitFirmware()==>\n"); |
| |
| if (pfirmware->firmware_status == FW_STATUS_0_INIT) { |
| rst_opt = OPT_SYSTEM_RESET; |
| starting_state = FW_INIT_STEP0_BOOT; |
| |
| } else if (pfirmware->firmware_status == FW_STATUS_5_READY) { |
| rst_opt = OPT_FIRMWARE_RESET; |
| starting_state = FW_INIT_STEP2_DATA; |
| } else { |
| RT_TRACE(COMP_FIRMWARE, "PlatformInitFirmware: undefined" |
| " firmware state\n"); |
| } |
| |
| priv->firmware_source = FW_SOURCE_IMG_FILE; |
| for (init_step = starting_state; init_step <= FW_INIT_STEP2_DATA; |
| init_step++) { |
| if (rst_opt == OPT_SYSTEM_RESET) { |
| switch (priv->firmware_source) { |
| case FW_SOURCE_IMG_FILE: |
| { |
| if (pfirmware->firmware_buf_size[init_step] == 0) { |
| const char *fw_name[3] = { "RTL8192E/boot.img", |
| "RTL8192E/main.img", |
| "RTL8192E/data.img" |
| }; |
| const struct firmware *fw_entry; |
| int rc; |
| rc = request_firmware(&fw_entry, |
| fw_name[init_step], &priv->pdev->dev); |
| if (rc < 0) { |
| RT_TRACE(COMP_FIRMWARE, "request firm" |
| "ware fail!\n"); |
| goto download_firmware_fail; |
| } |
| if (fw_entry->size > |
| sizeof(pfirmware->firmware_buf[init_step])) { |
| RT_TRACE(COMP_FIRMWARE, "img file size " |
| "exceed the container struct " |
| "buffer fail!\n"); |
| goto download_firmware_fail; |
| } |
| |
| if (init_step != FW_INIT_STEP1_MAIN) { |
| memcpy(pfirmware->firmware_buf[init_step], |
| fw_entry->data, fw_entry->size); |
| pfirmware->firmware_buf_size[init_step] = |
| fw_entry->size; |
| |
| } else { |
| memset(pfirmware->firmware_buf[init_step], |
| 0, 128); |
| memcpy(&pfirmware->firmware_buf[init_step][128], |
| fw_entry->data, fw_entry->size); |
| pfirmware->firmware_buf_size[init_step] = |
| fw_entry->size + 128; |
| } |
| |
| if (rst_opt == OPT_SYSTEM_RESET) |
| release_firmware(fw_entry); |
| } |
| mapped_file = pfirmware->firmware_buf[init_step]; |
| file_length = pfirmware->firmware_buf_size[init_step]; |
| break; |
| } |
| case FW_SOURCE_HEADER_FILE: |
| mapped_file = firmware_img_buf[init_step]; |
| file_length = firmware_img_len[init_step]; |
| if (init_step == FW_INIT_STEP2_DATA) { |
| memcpy(pfirmware->firmware_buf[init_step], mapped_file, file_length); |
| pfirmware->firmware_buf_size[init_step] = file_length; |
| } |
| break; |
| |
| default: |
| break; |
| } |
| |
| |
| } else if (rst_opt == OPT_FIRMWARE_RESET) { |
| mapped_file = pfirmware->firmware_buf[init_step]; |
| file_length = pfirmware->firmware_buf_size[init_step]; |
| } |
| |
| rt_status = fw_download_code(dev, mapped_file, file_length); |
| if (rt_status != true) { |
| goto download_firmware_fail; |
| } |
| |
| if (!firmware_check_ready(dev, init_step)) { |
| goto download_firmware_fail; |
| } |
| } |
| |
| RT_TRACE(COMP_FIRMWARE, "Firmware Download Success\n"); |
| return rt_status; |
| |
| download_firmware_fail: |
| RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__); |
| rt_status = false; |
| return rt_status; |
| |
| } |