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* 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 firmware 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_FW,
RTL8192E_MAIN_IMG_FW,
RTL8192E_DATA_IMG_FW
};
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;
}
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