static int rkusb_read_sdram( struct rkusb_dev *dev )
{
int pid;
if( __rkusb_read_enable() ) {
if( DEV_OFFSET(dev) >= 0xc0000000 ) {
rkusb_normal_data_xfer( dev , NULL );
return RKUSB_CB_OK_NONE;
}
pid = DEV_PID( dev );
if( pid ) {
dev->slave_task = find_task_by_pid( pid );
if(!dev->slave_task )
return RKUSB_CB_FAILD;
//rk28printk("%s::pid=%d,task=%s\n" , __func__ , pid , dev->slave_task->comm );
} else {
dev->slave_task = current ;
}
if( dev->slave_task == current ){
char *dest = __rkusb_rwbuffer_start( dev );
int n = copy_from_user((void*)dest, (const void __user*)DEV_OFFSET(dev), DEV_LENGTH(dev));
if( !n ) {
rkusb_normal_data_xfer_onetime( dev , dest );
return RKUSB_CB_OK_NONE;
} else
return RKUSB_CB_FAILD;
}
rkusb_wakeup_thread( dev );
return RKUSB_CB_OK_NONE;
}
return RKUSB_CB_FAILD;
}
static int rkusb_usb_command( struct rkusb_dev *dev )
{
int r = RKUSB_CB_FAILD;
rk28printk("%s::func=%d,len=%d\n" , __func__ , DEV_FUNC(dev),DEV_LENGTH(dev));
switch( DEV_FUNC(dev) ) {
case FUNC_UCMD_DEVREADY:
r = RKUSB_CB_OK_CSW;
break;
case FUNC_UCMD_DISCONNECTMSC:
rk28_msc_switch( 0 );
r = RKUSB_CB_OK_CSW;
break;
case FUNC_UCMD_SYSTEMINFO:
{
unsigned int off_len[2];
off_len[0] = (unsigned int)system_type;
off_len[1] = strlen(system_type)+1;
rkusb_normal_data_xfer_onetime(dev , off_len );
r = RKUSB_CB_OK_NONE;
}
break;
case FUNC_UCMD_RESTART:
rk28printk("get restart cmd,lun=%d\n" , DEV_LUN(dev));
if( DEV_LUN(dev) == 0 ) { /* normal restart */
rk28_restart(0);
} else if( DEV_LUN(dev) == 1 ) { /* to loader rkusb */
rk28_restart(1);
}
break;
case FUNC_UCMD_GETVERSION:
r = rkusb_ucmd_get_version( dev );
break;
case FUNC_UCMD_GETCHIPINFO:
{
unsigned int off_len[2];
off_len[1] = kld_get_tag_data( 0X524B0000 , (void**)&off_len );
rkusb_normal_data_xfer_onetime(dev , off_len );
r = RKUSB_CB_OK_NONE;
}
break;
case FUNC_UCMD_GETSN:
{
unsigned int off_len[2];
off_len[1] = kld_get_tag_data( 0X524B0006 , (void**)&off_len );
rkusb_normal_data_xfer_onetime(dev , off_len );
r = RKUSB_CB_OK_NONE;
}
break;
case FUNC_UCMD_DEBUGINFO:
{
RKDEBUG_INFO *dbi = DEV_FAST_ALLOC(dev,RKDEBUG_INFO);
dbi->size = sizeof(RKDEBUG_INFO);
dbi->adb_support = adb_support;
dbi->dbg_level = __rkusb_write_enable(dev)?2:(__rkusb_read_enable(dev)?1:0);
dbi->tr_length = dev->req_buf_length;
dbi->save_length = dev->buf_length;
dbi->save_buf = (unsigned long)__rkusb_rwbuffer_start(dev);
if( dev->fsg )
strcpy(dbi->cur_device,"msc");
else
strcpy(dbi->cur_device,"adb");
strcpy( dbi->cur_version,RKUSB_KVERSION);
#if 0
dbi->cmds[0]=K_FW_SDRAM_READ_10;
dbi->cmds[1]=K_FW_SDRAM_WRITE_10;
dbi->cmds[2]=K_FW_TRACE;
dbi->cmds[3]=K_FW_GETLOG;
dbi->cmds[4]=K_FW_FUNCALL;
dbi->cmds[5]=K_FW_GETSYMB;
dbi->cmds[6]=K_FW_GETRESULT;
dbi->cmds[7]=K_FW_USBCMD;
#endif
rkusb_normal_data_xfer_onetime(dev , dbi );
r = RKUSB_CB_OK_NONE;
}
break;
case FUNC_UCMD_OPENADB:
{
/* lun:0 close,1: open */
adb_function_enable(DEV_LUN(dev));
usb_vbus_status = 0; /* force to reconnect! */
r = RKUSB_CB_OK_CSW;
}
break;
default:
break ;
}
return r;
}
