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_turnonCPU 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 = ieee80211_priv(dev);
bool rt_status = TRUE;
u32 file_length = 0;
u8 *mapped_file = NULL;
u32 init_step = 0;
opt_rst_type_e rst_opt = OPT_SYSTEM_RESET;
firmware_init_step_e starting_state = FW_INIT_STEP0_BOOT;
rt_firmware *pfirmware = priv->pFirmware;
const struct firmware *fw_entry;
const char *fw_name[3] = { "RTL8192U/boot.img",
"RTL8192U/main.img",
"RTL8192U/data.img"};
int rc;
RT_TRACE(COMP_FIRMWARE, " PlatformInitFirmware()==>\n");
if (pfirmware->firmware_status == FW_STATUS_0_INIT ) {
/* it is called by reset */
rst_opt = OPT_SYSTEM_RESET;
starting_state = FW_INIT_STEP0_BOOT;
// TODO: system reset
}else if (pfirmware->firmware_status == FW_STATUS_5_READY) {
/* it is called by Initialize */
rst_opt = OPT_FIRMWARE_RESET;
starting_state = FW_INIT_STEP2_DATA;
}else {
RT_TRACE(COMP_FIRMWARE, "PlatformInitFirmware: undefined firmware state\n");
}
/*
* Download boot, main, and data image for System reset.
* Download data image for firmware reset
*/
for(init_step = starting_state; init_step <= FW_INIT_STEP2_DATA; init_step++) {
/*
* Open image file, and map file to continuous memory if open file success.
* or read image file from array. Default load from IMG file
*/
if (rst_opt == OPT_SYSTEM_RESET) {
rc = request_firmware(&fw_entry, fw_name[init_step],&priv->udev->dev);
if (rc < 0 ) {
RT_TRACE(COMP_ERR, "request firmware fail!\n");
goto download_firmware_fail;
}
if (fw_entry->size > sizeof(pfirmware->firmware_buf)) {
RT_TRACE(COMP_ERR, "img file size exceed the container buffer fail!\n");
goto download_firmware_fail;
}
if (init_step != FW_INIT_STEP1_MAIN) {
memcpy(pfirmware->firmware_buf,fw_entry->data,fw_entry->size);
mapped_file = pfirmware->firmware_buf;
file_length = fw_entry->size;
} else {
memset(pfirmware->firmware_buf,0,128);
memcpy(&pfirmware->firmware_buf[128],fw_entry->data,fw_entry->size);
mapped_file = pfirmware->firmware_buf;
file_length = fw_entry->size + 128;
}
pfirmware->firmware_buf_size = file_length;
}else if (rst_opt == OPT_FIRMWARE_RESET ) {
/* we only need to download data.img here */
mapped_file = pfirmware->firmware_buf;
file_length = pfirmware->firmware_buf_size;
}
/* Download image file */
/* The firmware download process is just as following,
* 1. that is each packet will be segmented and inserted to the wait queue.
* 2. each packet segment will be put in the skb_buff packet.
* 3. each skb_buff packet data content will already include the firmware info
* and Tx descriptor info
* */
rt_status = fw_download_code(dev,mapped_file,file_length);
if (rst_opt == OPT_SYSTEM_RESET)
release_firmware(fw_entry);
if (rt_status != TRUE)
goto download_firmware_fail;
switch (init_step) {
case FW_INIT_STEP0_BOOT:
/* Download boot
* initialize command descriptor.
* will set polling bit when firmware code is also configured
*/
pfirmware->firmware_status = FW_STATUS_1_MOVE_BOOT_CODE;
//mdelay(1000);
/*
* To initialize IMEM, CPU move code from 0x80000080,
* hence, we send 0x80 byte packet
*/
break;
case FW_INIT_STEP1_MAIN:
/* Download firmware code. Wait until Boot Ready and Turn on CPU */
pfirmware->firmware_status = FW_STATUS_2_MOVE_MAIN_CODE;
/* Check Put Code OK and Turn On CPU */
rt_status = CPUcheck_maincodeok_turnonCPU(dev);
if (rt_status != TRUE) {
RT_TRACE(COMP_ERR, "CPUcheck_maincodeok_turnonCPU fail!\n");
goto download_firmware_fail;
}
pfirmware->firmware_status = FW_STATUS_3_TURNON_CPU;
break;
case FW_INIT_STEP2_DATA:
/* download initial data code */
pfirmware->firmware_status = FW_STATUS_4_MOVE_DATA_CODE;
mdelay(1);
rt_status = CPUcheck_firmware_ready(dev);
if (rt_status != TRUE) {
RT_TRACE(COMP_ERR, "CPUcheck_firmware_ready fail(%d)!\n",rt_status);
goto download_firmware_fail;
}
/* wait until data code is initialized ready.*/
pfirmware->firmware_status = FW_STATUS_5_READY;
break;
}
}
RT_TRACE(COMP_FIRMWARE, "Firmware Download Success\n");
//assert(pfirmware->firmware_status == FW_STATUS_5_READY, ("Firmware Download Fail\n"));
return rt_status;
download_firmware_fail:
RT_TRACE(COMP_ERR, "ERR in %s()\n", __func__);
rt_status = FALSE;
return rt_status;
}