diff options
Diffstat (limited to 'drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c')
| -rw-r--r-- | drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c | 348 |
1 files changed, 348 insertions, 0 deletions
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c new file mode 100644 index 000000000000..37719859bdae --- /dev/null +++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c @@ -0,0 +1,348 @@ +/****************************************************************************** + * 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; + +} |