static void rts51x_disconnect(struct usb_interface *intf)
{
struct rts51x_chip *chip = (struct rts51x_chip *)usb_get_intfdata(intf);
RTS51X_DEBUGP("rts51x_disconnect() called\n");
quiesce_and_remove_host(chip);
release_everything(chip);
}
void our_disconnect(struct usb_interface *intf){
struct us_data *us = usb_get_intfdata(intf);
//---------------------------
pr_info("23 disconnect\n");
US_DEBUGP("storage_disconnect() called\n");
quiesce_and_remove_host(us);
release_everything(us);
}
static void rtsx_remove(struct pci_dev *pci)
{
struct rtsx_dev *dev = pci_get_drvdata(pci);
dev_info(&pci->dev, "rtsx_remove() called\n");
quiesce_and_remove_host(dev);
release_everything(dev);
}
static void __devexit rtsx_remove(struct pci_dev *pci)
{
struct rtsx_dev *dev = (struct rtsx_dev *)pci_get_drvdata(pci);
printk(KERN_INFO "rtsx_remove() called\n");
quiesce_and_remove_host(dev);
release_everything(dev);
pci_set_drvdata(pci, NULL);
}
static int rtsx_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
struct Scsi_Host *host;
struct rtsx_dev *dev;
int err = 0;
struct task_struct *th;
dev_dbg(&pci->dev, "Realtek PCI-E card reader detected\n");
err = pcim_enable_device(pci);
if (err < 0) {
dev_err(&pci->dev, "PCI enable device failed!\n");
return err;
}
err = pci_request_regions(pci, CR_DRIVER_NAME);
if (err < 0) {
dev_err(&pci->dev, "PCI request regions for %s failed!\n",
CR_DRIVER_NAME);
return err;
}
/*
* Ask the SCSI layer to allocate a host structure, with extra
* space at the end for our private rtsx_dev structure.
*/
host = scsi_host_alloc(&rtsx_host_template, sizeof(*dev));
if (!host) {
dev_err(&pci->dev, "Unable to allocate the scsi host\n");
return -ENOMEM;
}
dev = host_to_rtsx(host);
memset(dev, 0, sizeof(struct rtsx_dev));
dev->chip = kzalloc(sizeof(struct rtsx_chip), GFP_KERNEL);
if (!dev->chip) {
err = -ENOMEM;
goto errout;
}
spin_lock_init(&dev->reg_lock);
mutex_init(&(dev->dev_mutex));
init_completion(&dev->cmnd_ready);
init_completion(&dev->control_exit);
init_completion(&dev->polling_exit);
init_completion(&(dev->notify));
init_completion(&dev->scanning_done);
init_waitqueue_head(&dev->delay_wait);
dev->pci = pci;
dev->irq = -1;
dev_info(&pci->dev, "Resource length: 0x%x\n",
(unsigned int)pci_resource_len(pci, 0));
dev->addr = pci_resource_start(pci, 0);
dev->remap_addr = ioremap_nocache(dev->addr, pci_resource_len(pci, 0));
if (!dev->remap_addr) {
dev_err(&pci->dev, "ioremap error\n");
err = -ENXIO;
goto errout;
}
/*
* Using "unsigned long" cast here to eliminate gcc warning in
* 64-bit system
*/
dev_info(&pci->dev, "Original address: 0x%lx, remapped address: 0x%lx\n",
(unsigned long)(dev->addr), (unsigned long)(dev->remap_addr));
dev->rtsx_resv_buf = dmam_alloc_coherent(&pci->dev, RTSX_RESV_BUF_LEN,
&dev->rtsx_resv_buf_addr, GFP_KERNEL);
if (!dev->rtsx_resv_buf) {
dev_err(&pci->dev, "alloc dma buffer fail\n");
err = -ENXIO;
goto errout;
}
dev->chip->host_cmds_ptr = dev->rtsx_resv_buf;
dev->chip->host_cmds_addr = dev->rtsx_resv_buf_addr;
dev->chip->host_sg_tbl_ptr = dev->rtsx_resv_buf + HOST_CMDS_BUF_LEN;
dev->chip->host_sg_tbl_addr = dev->rtsx_resv_buf_addr +
HOST_CMDS_BUF_LEN;
dev->chip->rtsx = dev;
rtsx_init_options(dev->chip);
dev_info(&pci->dev, "pci->irq = %d\n", pci->irq);
if (dev->chip->msi_en) {
if (pci_enable_msi(pci) < 0)
dev->chip->msi_en = 0;
}
if (rtsx_acquire_irq(dev) < 0) {
err = -EBUSY;
goto errout;
}
pci_set_master(pci);
synchronize_irq(dev->irq);
rtsx_init_chip(dev->chip);
/*
* set the supported max_lun and max_id for the scsi host
* NOTE: the minimal value of max_id is 1
*/
host->max_id = 1;
host->max_lun = dev->chip->max_lun;
/* Start up our control thread */
th = kthread_run(rtsx_control_thread, dev, CR_DRIVER_NAME);
if (IS_ERR(th)) {
dev_err(&pci->dev, "Unable to start control thread\n");
err = PTR_ERR(th);
goto errout;
}
dev->ctl_thread = th;
err = scsi_add_host(host, &pci->dev);
if (err) {
dev_err(&pci->dev, "Unable to add the scsi host\n");
goto errout;
}
/* Start up the thread for delayed SCSI-device scanning */
th = kthread_run(rtsx_scan_thread, dev, "rtsx-scan");
if (IS_ERR(th)) {
dev_err(&pci->dev, "Unable to start the device-scanning thread\n");
complete(&dev->scanning_done);
quiesce_and_remove_host(dev);
err = PTR_ERR(th);
goto errout;
}
/* Start up the thread for polling thread */
th = kthread_run(rtsx_polling_thread, dev, "rtsx-polling");
if (IS_ERR(th)) {
dev_err(&pci->dev, "Unable to start the device-polling thread\n");
quiesce_and_remove_host(dev);
err = PTR_ERR(th);
goto errout;
}
dev->polling_thread = th;
pci_set_drvdata(pci, dev);
return 0;
/* We come here if there are any problems */
errout:
dev_err(&pci->dev, "rtsx_probe() failed\n");
release_everything(dev);
return err;
}
int main(int argc, char **argv)
{
int input_fd;
int output_fd;
int fft_dev_fd;
int result;
IN_SAMPLE_TYPE *in_buf;
OUT_SAMPLE_TYPE *out_buf;
initialize_everything(argc, argv);
/* allocate storage for input, output and config buffers */
in_buf = (IN_SAMPLE_TYPE*) NE10_MALLOC (FFT_POINTS * sizeof(IN_SAMPLE_TYPE));
if(in_buf == NULL)
error(1, errno, "in_buf allocation");
out_buf = (OUT_SAMPLE_TYPE*) NE10_MALLOC (FFT_POINTS * sizeof(OUT_SAMPLE_TYPE));
if(out_buf == NULL)
error(1, errno, "out_buf allocation");
/* open the input and output files and fft dev */
input_fd = open(g_input_filename, O_RDONLY);
if(input_fd < 0)
error(1, errno, "opening input file '%s'", g_input_filename);
output_fd = open(g_output_filename, O_WRONLY | O_CREAT);
if(output_fd < 0)
error(1, errno, "opening output file '%s'", g_output_filename);
fft_dev_fd = open("/dev/fft", O_RDWR);
if(fft_dev_fd < 0)
error(1, errno, "opening fft_dev_fd");
/* capture the start value of the GT */
g_start_time = get_gt_value();
/* read the input data */
result = read(input_fd, in_buf, FFT_POINTS * sizeof(IN_SAMPLE_TYPE));
if(result < 0)
error(1, errno, "read input file");
if(result != (FFT_POINTS * sizeof(IN_SAMPLE_TYPE)))
error(1, 0, "input data size, expected %d but got %d", FFT_POINTS * sizeof(IN_SAMPLE_TYPE), result);
/* perform FFT with FPGA hardware, 16 bit input 24/32 bit output */
result = write(fft_dev_fd, in_buf, FFT_POINTS * sizeof(IN_SAMPLE_TYPE));
if(result < 0)
error(1, errno, "write to fft_dev_fd");
if (result != (int)(FFT_POINTS * sizeof(IN_SAMPLE_TYPE)))
error(1, 0, "fft_dev_fd input data size, expected %d but got %d", FFT_POINTS * sizeof(IN_SAMPLE_TYPE), result);
result = read(fft_dev_fd, out_buf, FFT_POINTS * sizeof(OUT_SAMPLE_TYPE));
if(result < 0)
error(1, errno, "read from fft_dev_fd");
if (result != (int)(FFT_POINTS * sizeof(OUT_SAMPLE_TYPE)))
error(1, 0, "fft_dev_fd output data size, expected %d but got %d", FFT_POINTS * sizeof(OUT_SAMPLE_TYPE), result);
/* write the output data */
result = write(output_fd, out_buf, FFT_POINTS * sizeof(OUT_SAMPLE_TYPE));
if(result < 0)
error(1, errno, "write output file");
if(result != (FFT_POINTS * sizeof(OUT_SAMPLE_TYPE)))
error(1, 0, "output data size, expected %d but got %d", FFT_POINTS * sizeof(OUT_SAMPLE_TYPE), result);
/* capture the end value of the GT */
g_end_time = get_gt_value();
/* close the input and output files and fft dev */
close(fft_dev_fd);
close(output_fd);
close(input_fd);
/* free storage for input, output and config buffers */
NE10_FREE (out_buf);
NE10_FREE (in_buf);
print_results();
release_everything();
return 0;
}
//probe书中有教
static int our_probe(struct usb_interface *intf,
const struct usb_device_id *id){
struct us_data *us;
int result;
//device
struct device *dev;
//scsihost
struct Scsi_Host *host;
//检测id是否符合 和intf
struct us_unusual_dev *unusual_dev;
unusual_dev=(id - usb_storage_usb_ids) + us_unusual_dev_list;
if(usb_usual_check_type(id,USB_US_TYPE_STOR) || usb_usual_ignore_device(intf))
return -ENXIO;
printk(KERN_ALERT "probe usb usb detected!\n");
//分配个host
host = scsi_host_alloc(&usb_stor_host_template,sizeof(*us));
if(!host){
dev_warn(&intf->dev,"fail to allocate the scsi host\n");
return -ENOMEM;
}
//host中的一些初始化
host->max_cmd_len = 16;
host-> sg_tablesize = usb_stor_sg_tablesize(intf);
us= host_to_us(host);//us 作为host中 的us
//分内存？
memset(us,0,sizeof(struct us_data));
mutex_init(&(us->dev_mutex));
init_completion(&us->cmnd_ready);
init_completion(&(us->notify));
init_waitqueue_head(&us->delay_wait);
INIT_DELAYED_WORK(&us->scan_dwork,usb_stor_scan_dwork);
result = associate_dev(us,intf);
if(result)
goto Bad;
result = get_device_info(us,id,unusual_dev);
if(result)
goto Bad;
//transport protocol
get_transport(us);
get_protocol(us);
if(!us->transport ||!us->proto_handler){
result=-ENXIO;
goto Bad;
}
printk(KERN_ALERT"Transport: %s\n",us->transport_name);
printk(KERN_ALERT"Protocol: %s\n",us->transport_name);
dev = &us->pusb_intf->dev;
//设置max lun
if(us->fflags & US_FL_SINGLE_LUN)
us->max_lun =0;
//endpoint get pipe
result = get_pipes(us);
if(result)
goto Bad;
//如果u盘前十个指令错误，重置
if (us->fflags & US_FL_INITIAL_READ10)
set_bit(US_FLIDX_REDO_READ10, &us->dflags);
//申请子资源，添加进host
result=usb_stor_acquire_sesources(us);
if(result)
goto Bad;
snprintf(us->scsi_name,sizeof(us->scsi_name),"our-usb-storage%s",dev_name(&us->pusb_intf->dev));
result= scsi_add_host(us_to_host(us),dev);
if(result){
printk(KERN_ALERT"UNable to add the host\n");
goto Bad;
}
//scsi设备延时探测
usb_autopm_get_interface_no_resume(us->pusb_intf);
set_bit(US_FLIDX_SCAN_PENDING,&us->dflags);
if(delay_use>0)
dev_dbg(dev,"waiting for device before scanning\n");
queue_delayed_work(system_freezable_wq,&us->scan_dwork,delay_use * HZ);
return 0;
Bad:
printk(KERN_ALERT "probe false!\n");
release_everything(us);
return result;
}
int main(int argc, char **argv)
{
int input_fd;
int output_fd;
int result;
IN_SAMPLE_TYPE *in_buf;
OUT_SAMPLE_TYPE *out_buf;
CFG_TYPE cfg;
int i;
initialize_everything(argc, argv);
/* allocate storage for input, output and config buffers */
in_buf = (IN_SAMPLE_TYPE*) NE10_MALLOC (FFT_POINTS * sizeof(IN_SAMPLE_TYPE));
if(in_buf == NULL)
error(1, errno, "in_buf allocation");
out_buf = (OUT_SAMPLE_TYPE*) NE10_MALLOC (FFT_POINTS * sizeof(OUT_SAMPLE_TYPE));
if(out_buf == NULL)
error(1, errno, "out_buf allocation");
cfg = CFG_ALLOC_FUNC(FFT_CALC_POINTS);
if(cfg == NULL)
error(1, errno, "cfg allocation");
/* open the input and output files */
input_fd = open(g_input_filename, O_RDONLY);
if(input_fd < 0)
error(1, errno, "opening input file '%s'", g_input_filename);
output_fd = open(g_output_filename, O_WRONLY | O_CREAT);
if(output_fd < 0)
error(1, errno, "opening output file '%s'", g_output_filename);
/* capture the start value of the GT */
g_start_time = get_gt_value();
/* read the input data */
result = read(input_fd, in_buf, FFT_POINTS * sizeof(IN_SAMPLE_TYPE));
if(result < 0)
error(1, errno, "read input file");
if(result != (FFT_POINTS * sizeof(IN_SAMPLE_TYPE)))
error(1, 0, "input data size, expected %d but got %d", FFT_POINTS * sizeof(IN_SAMPLE_TYPE), result);
/* compute FFT */
for (i = 0; i < FFT_CALC_ROUNDS ; i++) {
FFT_FUNC(out_buf + (i * FFT_CALC_POINTS), in_buf + (i * FFT_CALC_POINTS), cfg, 0, 1);
}
/* write the output data */
result = write(output_fd, out_buf, FFT_POINTS * sizeof(OUT_SAMPLE_TYPE));
if(result < 0)
error(1, errno, "write output file");
if(result != (FFT_POINTS * sizeof(OUT_SAMPLE_TYPE)))
error(1, 0, "output data size, expected %d but got %d", FFT_POINTS * sizeof(OUT_SAMPLE_TYPE), result);
/* capture the end value of the GT */
g_end_time = get_gt_value();
/* close the input and output files */
close(output_fd);
close(input_fd);
/* free storage for input, output and config buffers */
NE10_FREE (cfg);
NE10_FREE (out_buf);
NE10_FREE (in_buf);
print_results();
release_everything();
return 0;
}
int main(int argc, char **argv)
{
int input_fd;
int output_fd;
int raw256stream_dev_fd;
int result;
IN_SAMPLE_TYPE *in_buf;
int j;
initialize_everything(argc, argv);
/* allocate storage for input */
in_buf = (IN_SAMPLE_TYPE*) NE10_MALLOC (FFT_POINTS * sizeof(IN_SAMPLE_TYPE));
if(in_buf == NULL)
error(1, errno, "in_buf allocation");
/* open the input and output files and raw256stream device */
input_fd = open(g_input_filename, O_RDONLY);
if(input_fd < 0)
error(1, errno, "opening input file '%s'", g_input_filename);
output_fd = open(g_output_filename, O_WRONLY | O_CREAT);
if(output_fd < 0)
error(1, errno, "opening output file '%s'", g_output_filename);
raw256stream_dev_fd = open("/dev/raw256stream", O_RDWR);
if(raw256stream_dev_fd < 0)
error(1, errno, "opening raw256stream_dev_fd");
/* read the input data */
result = read(input_fd, in_buf, FFT_CALC_POINTS * sizeof(IN_SAMPLE_TYPE));
if(result < 0)
error(1, errno, "read input file");
if(result != (FFT_CALC_POINTS * sizeof(IN_SAMPLE_TYPE)))
error(1, 0, "input data size, expected %d but got %d", FFT_CALC_POINTS * sizeof(IN_SAMPLE_TYPE), result);
/* write the waveform buffer */
result = write(raw256stream_dev_fd, in_buf, FFT_CALC_POINTS * sizeof(IN_SAMPLE_TYPE));
if(result < 0)
error(1, errno, "write waveform buffer");
if(result != (FFT_CALC_POINTS * sizeof(IN_SAMPLE_TYPE)))
error(1, 0, "output data size, expected %d but got %d", FFT_CALC_POINTS * sizeof(IN_SAMPLE_TYPE), result);
/* capture the start value of the GT */
g_start_time = get_gt_value();
for(j = 0 ; j < FFT_IN_ROUNDS ; j++) {
/* read the input stream */
result = read(raw256stream_dev_fd, in_buf, FFT_POINTS * sizeof(IN_SAMPLE_TYPE));
if(result < 0)
error(1, errno, "read input stream");
if(result != (FFT_POINTS * sizeof(IN_SAMPLE_TYPE)))
error(1, 0, "input data size, expected %d but got %d", FFT_POINTS * sizeof(IN_SAMPLE_TYPE), result);
/* write the output data */
result = write(output_fd, in_buf, FFT_POINTS * sizeof(IN_SAMPLE_TYPE));
if(result < 0)
error(1, errno, "write output file");
if(result != (FFT_POINTS * sizeof(IN_SAMPLE_TYPE)))
error(1, 0, "output data size, expected %d but got %d", FFT_POINTS * sizeof(IN_SAMPLE_TYPE), result);
}
/* capture the end value of the GT */
g_end_time = get_gt_value();
/* close the input and output files and stream device */
close(raw256stream_dev_fd);
close(output_fd);
close(input_fd);
/* free storage for input, output and config buffers */
NE10_FREE (in_buf);
print_results();
release_everything();
return 0;
}
static int rtsx_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
{
struct Scsi_Host *host;
struct rtsx_dev *dev;
int err = 0;
struct task_struct *th;
printk(KERN_INFO "--- %s ---\n", DRIVER_MAKE_TIME);
err = pci_enable_device(pci);
if (err < 0) {
printk(KERN_ERR "PCI enable device failed!\n");
return err;
}
err = pci_request_regions(pci, CR_DRIVER_NAME);
if (err < 0) {
printk(KERN_ERR "PCI request regions for %s failed!\n", CR_DRIVER_NAME);
pci_disable_device(pci);
return err;
}
/*
* Ask the SCSI layer to allocate a host structure, with extra
* space at the end for our private rtsx_dev structure.
*/
host = scsi_host_alloc(&rtsx_host_template, sizeof(*dev));
if (!host) {
printk(KERN_ERR "Unable to allocate the scsi host\n");
pci_release_regions(pci);
pci_disable_device(pci);
return -ENOMEM;
}
dev = host_to_rtsx(host);
memset(dev, 0, sizeof(struct rtsx_dev));
dev->chip = (struct rtsx_chip *)kmalloc(sizeof(struct rtsx_chip), GFP_KERNEL);
if (dev->chip == NULL) {
goto errout;
}
memset(dev->chip, 0, sizeof(struct rtsx_chip));
spin_lock_init(&dev->reg_lock);
mutex_init(&(dev->dev_mutex));
sema_init(&(dev->sema), 0);
init_completion(&(dev->notify));
init_waitqueue_head(&dev->delay_wait);
dev->pci = pci;
dev->irq = -1;
printk(KERN_INFO "Resource length: 0x%x\n", (unsigned int)pci_resource_len(pci,0));
dev->addr = pci_resource_start(pci, 0);
dev->remap_addr = ioremap_nocache(dev->addr, pci_resource_len(pci,0));
if (dev->remap_addr == NULL) {
printk(KERN_ERR "ioremap error\n");
err = -ENXIO;
goto errout;
}
printk(KERN_INFO "Original address: 0x%lx, remapped address: 0x%lx\n",
(unsigned long)(dev->addr), (unsigned long)(dev->remap_addr));
dev->rtsx_resv_buf = dma_alloc_coherent(&(pci->dev), RTSX_RESV_BUF_LEN,
&(dev->rtsx_resv_buf_addr), GFP_KERNEL);
if (dev->rtsx_resv_buf == NULL) {
printk(KERN_ERR "alloc dma buffer fail\n");
err = -ENXIO;
goto errout;
}
dev->chip->host_cmds_ptr = dev->rtsx_resv_buf;
dev->chip->host_cmds_addr = dev->rtsx_resv_buf_addr;
dev->chip->host_sg_tbl_ptr = dev->rtsx_resv_buf + HOST_CMDS_BUF_LEN;
dev->chip->host_sg_tbl_addr = dev->rtsx_resv_buf_addr + HOST_CMDS_BUF_LEN;
dev->chip->rtsx = dev;
rtsx_init_options(dev->chip);
printk(KERN_INFO "pci->irq = %d\n", pci->irq);
if (dev->chip->msi_en) {
if (pci_enable_msi(pci) < 0) {
dev->chip->msi_en = 0;
}
}
if (rtsx_acquire_irq(dev) < 0) {
err = -EBUSY;
goto errout;
}
pci_set_master(pci);
synchronize_irq(dev->irq);
err = scsi_add_host(host, &pci->dev);
if (err) {
printk(KERN_ERR "Unable to add the scsi host\n");
goto errout;
}
rtsx_init_chip(dev->chip);
th = kthread_create(rtsx_control_thread, dev, CR_DRIVER_NAME);
if (IS_ERR(th)) {
printk(KERN_ERR "Unable to start control thread\n");
err = PTR_ERR(th);
goto errout;
}
/* Take a reference to the host for the control thread and
* count it among all the threads we have launched. Then
* start it up. */
scsi_host_get(rtsx_to_host(dev));
atomic_inc(&total_threads);
wake_up_process(th);
th = kthread_create(rtsx_scan_thread, dev, "rtsx-scan");
if (IS_ERR(th)) {
printk(KERN_ERR "Unable to start the device-scanning thread\n");
quiesce_and_remove_host(dev);
err = PTR_ERR(th);
goto errout;
}
/* Take a reference to the host for the scanning thread and
* count it among all the threads we have launched. Then
* start it up. */
scsi_host_get(rtsx_to_host(dev));
atomic_inc(&total_threads);
wake_up_process(th);
th = kthread_create(rtsx_polling_thread, dev, "rtsx-polling");
if (IS_ERR(th)) {
printk(KERN_ERR "Unable to start the device-polling thread\n");
quiesce_and_remove_host(dev);
err = PTR_ERR(th);
goto errout;
}
/* Take a reference to the host for the polling thread and
* count it among all the threads we have launched. Then
* start it up. */
scsi_host_get(rtsx_to_host(dev));
atomic_inc(&total_threads);
wake_up_process(th);
pci_set_drvdata(pci, dev);
return 0;
errout:
printk(KERN_ERR "rtsx_probe() failed\n");
release_everything(dev);
return err;
}
static int rts51x_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct Scsi_Host *host;
struct rts51x_chip *chip;
struct rts51x_usb *rts51x;
int result;
struct task_struct *th;
RTS51X_DEBUGP("%s detected\n", RTS51X_NAME);
rts51x = kzalloc(sizeof(struct rts51x_usb), GFP_KERNEL);
if (!rts51x) {
printk(KERN_WARNING RTS51X_TIP
"Unable to allocate rts51x_usb\n");
return -ENOMEM;
}
host = scsi_host_alloc(&rts51x_host_template, sizeof(*chip));
if (!host) {
printk(KERN_WARNING RTS51X_TIP
"Unable to allocate the scsi host\n");
kfree(rts51x);
return -ENOMEM;
}
host->max_cmd_len = 16;
chip = host_to_rts51x(host);
memset(chip, 0, sizeof(struct rts51x_chip));
chip->vendor_id = id->idVendor;
chip->product_id = id->idProduct;
mutex_init(&(rts51x->dev_mutex));
init_completion(&rts51x->cmnd_ready);
init_completion(&rts51x->control_exit);
init_completion(&rts51x->polling_exit);
init_completion(&(rts51x->notify));
#ifdef SCSI_SCAN_DELAY
init_waitqueue_head(&rts51x->delay_wait);
init_completion(&rts51x->scanning_done);
#endif
chip->usb = rts51x;
result = associate_dev(chip, intf);
if (result)
goto BadDevice;
result = get_pipes(chip);
if (result)
goto BadDevice;
result = rts51x_acquire_resources(chip);
if (result)
goto BadDevice;
th = kthread_run(rts51x_control_thread, chip, RTS51X_CTL_THREAD);
if (IS_ERR(th)) {
printk(KERN_WARNING RTS51X_TIP
"Unable to start control thread\n");
result = PTR_ERR(th);
goto BadDevice;
}
rts51x->ctl_thread = th;
result = scsi_add_host(rts51x_to_host(chip), &rts51x->pusb_intf->dev);
if (result) {
printk(KERN_WARNING RTS51X_TIP "Unable to add the scsi host\n");
goto BadDevice;
}
#ifdef SCSI_SCAN_DELAY
th = kthread_create(rts51x_scan_thread, chip, RTS51X_SCAN_THREAD);
if (IS_ERR(th)) {
printk(KERN_WARNING RTS51X_TIP
"Unable to start the device-scanning thread\n");
complete(&rts51x->scanning_done);
quiesce_and_remove_host(chip);
result = PTR_ERR(th);
goto BadDevice;
}
wake_up_process(th);
#else
scsi_scan_host(rts51x_to_host(chip));
#endif
th = kthread_run(rts51x_polling_thread, chip, RTS51X_POLLING_THREAD);
if (IS_ERR(th)) {
printk(KERN_WARNING RTS51X_TIP
"Unable to start polling thread\n");
result = PTR_ERR(th);
goto BadDevice;
}
rts51x->polling_thread = th;
#ifdef CONFIG_PM
if (ss_en) {
rts51x->pusb_intf->needs_remote_wakeup = needs_remote_wakeup;
SET_PM_USAGE_CNT(chip, 1);
RTS51X_DEBUGP("pm_usage_cnt = %d\n", GET_PM_USAGE_CNT(chip));
}
#endif
return 0;
BadDevice:
RTS51X_DEBUGP("rts51x_probe() failed\n");
release_everything(chip);
return result;
}