1 #include <linux/kernel.h>
2 #include <linux/init.h>
3 #include <linux/module.h>
5 #include <linux/firmware.h>
7 #include "smskdefs.h" // page, scatterlist, kmutex
8 #include "smscoreapi.h"
11 #define USB_VID_SIANO 0x187f
12 #define USB_PID_0010 0x0010
13 #define USB_PID_0100 0x0100
14 #define USB_PID_0200 0x0200
16 #define USB1_BUFFER_SIZE 0x1000
17 #define USB2_BUFFER_SIZE 0x4000
19 #define MAX_BUFFERS 50
22 typedef struct _smsusb_device smsusb_device_t;
24 typedef struct _smsusb_urb
32 typedef struct _smsusb_device
34 struct usb_device* udev;
35 smscore_device_t *coredev;
37 smsusb_urb_t surbs[MAX_URBS];
39 int response_alignment;
43 static struct usb_device_id smsusb_id_table [] = {
44 { USB_DEVICE(USB_VID_SIANO, USB_PID_0010) },
45 { USB_DEVICE(USB_VID_SIANO, USB_PID_0100) },
46 { USB_DEVICE(USB_VID_SIANO, USB_PID_0200) },
47 { } /* Terminating entry */
49 MODULE_DEVICE_TABLE (usb, smsusb_id_table);
51 int smsusb_submit_urb(smsusb_device_t* dev, smsusb_urb_t* surb);
53 void smsusb_onresponse(struct urb *urb)
55 smsusb_urb_t *surb = (smsusb_urb_t *) urb->context;
56 smsusb_device_t *dev = surb->dev;
60 printk(KERN_INFO "%s error, urb status %d, %d bytes\n", __FUNCTION__, urb->status, urb->actual_length);
64 if (urb->actual_length > 0)
66 SmsMsgHdr_ST *phdr = (SmsMsgHdr_ST *) surb->cb->p;
68 if (urb->actual_length >= phdr->msgLength)
70 surb->cb->size = phdr->msgLength;
72 if (dev->response_alignment && (phdr->msgFlags & MSG_HDR_FLAG_SPLIT_MSG))
74 surb->cb->offset = dev->response_alignment + ((phdr->msgFlags >> 8) & 3);
77 if (((int) phdr->msgLength + surb->cb->offset) > urb->actual_length)
79 printk("%s: invalid response msglen %d offset %d size %d\n", __FUNCTION__, phdr->msgLength, surb->cb->offset, urb->actual_length);
80 goto exit_and_resubmit;
83 // move buffer pointer and copy header to its new location
84 memcpy((char*) phdr + surb->cb->offset, phdr, sizeof(SmsMsgHdr_ST));
89 smscore_onresponse(dev->coredev, surb->cb);
94 printk("%s invalid response msglen %d actual %d\n", __FUNCTION__, phdr->msgLength, urb->actual_length);
99 smsusb_submit_urb(dev, surb);
102 int smsusb_submit_urb(smsusb_device_t* dev, smsusb_urb_t* surb)
106 surb->cb = smscore_getbuffer(dev->coredev);
109 printk(KERN_INFO "%s smscore_getbuffer(...) returned NULL\n", __FUNCTION__);
117 usb_rcvbulkpipe(dev->udev, 0x81),
123 surb->urb.transfer_dma = surb->cb->phys;
124 surb->urb.transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
126 return usb_submit_urb(&surb->urb, GFP_ATOMIC);
129 void smsusb_stop_streaming(smsusb_device_t* dev)
133 for (i = 0; i < MAX_URBS; i ++)
135 usb_kill_urb(&dev->surbs[i].urb);
137 if (dev->surbs[i].cb)
139 smscore_putbuffer(dev->coredev, dev->surbs[i].cb);
140 dev->surbs[i].cb = NULL;
145 int smsusb_start_streaming(smsusb_device_t* dev)
149 for (i = 0; i < MAX_URBS; i ++)
151 rc = smsusb_submit_urb(dev, &dev->surbs[i]);
154 printk(KERN_INFO "%s smsusb_submit_urb(...) failed\n", __FUNCTION__);
155 smsusb_stop_streaming(dev);
163 int smsusb_sendrequest(void *context, void *buffer, size_t size)
165 smsusb_device_t* dev = (smsusb_device_t*) context;
168 return usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2), buffer, size, &dummy, 1000);
171 char *smsusb1_fw_lkup[] =
173 "dvbt_stellar_usb.inp",
174 "dvbh_stellar_usb.inp",
175 "tdmb_stellar_usb.inp",
177 "dvbt_bda_stellar_usb.inp",
180 int smsusb1_load_firmware(struct usb_device *udev, int id)
182 const struct firmware *fw;
186 if (id < DEVICE_MODE_DVBT || id > DEVICE_MODE_DVBT_BDA)
188 printk(KERN_INFO "%s invalid firmware id specified %d\n", __FUNCTION__, id);
192 rc = request_firmware(&fw, smsusb1_fw_lkup[id], &udev->dev);
195 printk(KERN_INFO "%s failed to open \"%s\" mode %d\n", __FUNCTION__, smsusb1_fw_lkup[id], id);
199 fw_buffer = kmalloc(fw->size, GFP_KERNEL);
202 memcpy(fw_buffer, fw->data, fw->size);
204 rc = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 2), fw_buffer, fw->size, &dummy, 1000);
206 printk(KERN_INFO "%s: sent %d(%d) bytes, rc %d\n", __FUNCTION__, fw->size, dummy, rc);
212 printk(KERN_INFO "failed to allocate firmware buffer\n");
216 release_firmware(fw);
221 void smsusb1_detectmode(void *context, int *mode)
223 char *product_string = ((smsusb_device_t *) context)->udev->product;
225 *mode = DEVICE_MODE_NONE;
229 product_string = "none";
230 printk("%s product string not found\n", __FUNCTION__);
234 if (strstr(product_string, "DVBH"))
236 else if (strstr(product_string, "BDA"))
238 else if (strstr(product_string, "DVBT"))
240 else if (strstr(product_string, "TDMB"))
244 printk("%s: %d \"%s\"\n", __FUNCTION__, *mode, product_string);
247 int smsusb1_setmode(void *context, int mode)
249 SmsMsgHdr_ST Msg = { MSG_SW_RELOAD_REQ, 0, HIF_TASK, sizeof(SmsMsgHdr_ST), 0 };
251 if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA)
253 printk(KERN_INFO "%s invalid firmware id specified %d\n", __FUNCTION__, mode);
257 return smsusb_sendrequest(context, &Msg, sizeof(Msg));
260 void smsusb_term_device(struct usb_interface *intf)
262 smsusb_device_t *dev = (smsusb_device_t*) usb_get_intfdata(intf);
266 smsusb_stop_streaming(dev);
268 // unregister from smscore
270 smscore_unregister_device(dev->coredev);
274 printk(KERN_INFO "%s device %p destroyed\n", __FUNCTION__, dev);
277 usb_set_intfdata(intf, NULL);
280 int smsusb_init_device(struct usb_interface *intf)
282 smsdevice_params_t params;
283 smsusb_device_t* dev;
286 // create device object
287 dev = kzalloc(sizeof(smsusb_device_t), GFP_KERNEL);
290 printk(KERN_INFO "%s kzalloc(sizeof(smsusb_device_t) failed\n", __FUNCTION__);
294 memset(¶ms, 0, sizeof(params));
295 usb_set_intfdata(intf, dev);
296 dev->udev = interface_to_usbdev(intf);
298 switch (dev->udev->descriptor.idProduct)
301 dev->buffer_size = USB1_BUFFER_SIZE;
303 params.setmode_handler = smsusb1_setmode;
304 params.detectmode_handler = smsusb1_detectmode;
308 dev->buffer_size = USB2_BUFFER_SIZE;
309 dev->response_alignment = dev->udev->ep_in[1]->desc.wMaxPacketSize - sizeof(SmsMsgHdr_ST);
311 params.flags |= SMS_DEVICE_FAMILY2;
315 params.device = &dev->udev->dev;
316 params.buffer_size = dev->buffer_size;
317 params.num_buffers = MAX_BUFFERS;
318 params.sendrequest_handler = smsusb_sendrequest;
319 params.context = dev;
320 snprintf(params.devpath, sizeof(params.devpath), "usb\\%d-%s", dev->udev->bus->busnum, dev->udev->devpath);
322 // register in smscore
323 rc = smscore_register_device(¶ms, &dev->coredev);
326 printk(KERN_INFO "%s smscore_register_device(...) failed, rc %d\n", __FUNCTION__, rc);
327 smsusb_term_device(intf);
332 for (i = 0; i < MAX_URBS; i ++)
334 dev->surbs[i].dev = dev;
335 usb_init_urb(&dev->surbs[i].urb);
338 rc = smsusb_start_streaming(dev);
341 printk(KERN_INFO "%s smsusb_start_streaming(...) failed\n", __FUNCTION__);
342 smsusb_term_device(intf);
346 rc = smscore_start_device(dev->coredev);
349 printk(KERN_INFO "%s smscore_start_device(...) failed\n", __FUNCTION__);
350 smsusb_term_device(intf);
354 printk(KERN_INFO "%s device %p created\n", __FUNCTION__, dev);
359 int smsusb_probe(struct usb_interface *intf, const struct usb_device_id *id)
361 struct usb_device *udev = interface_to_usbdev(intf);
365 if (intf->num_altsetting > 0)
367 rc = usb_set_interface(udev, intf->cur_altsetting->desc.bInterfaceNumber, 0);
370 printk(KERN_INFO "%s usb_set_interface failed, rc %d\n", __FUNCTION__, rc);
375 printk(KERN_INFO "smsusb_probe %d\n", intf->cur_altsetting->desc.bInterfaceNumber);
376 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i ++)
377 printk(KERN_INFO "endpoint %d %02x %02x %d\n", i, intf->cur_altsetting->endpoint[i].desc.bEndpointAddress, intf->cur_altsetting->endpoint[i].desc.bmAttributes, intf->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
379 if (udev->actconfig->desc.bNumInterfaces == 2 && intf->cur_altsetting->desc.bInterfaceNumber == 0)
381 printk(KERN_INFO "rom interface 0 is not used\n");
385 if (intf->cur_altsetting->desc.bInterfaceNumber == 1)
387 snprintf(devpath, 32, "%d:%s", udev->bus->busnum, udev->devpath);
388 return smsusb1_load_firmware(udev, smscore_registry_getmode(devpath));
391 return smsusb_init_device(intf);
394 void smsusb_disconnect(struct usb_interface *intf)
396 smsusb_term_device(intf);
399 static struct usb_driver smsusb_driver = {
401 .probe = smsusb_probe,
402 .disconnect = smsusb_disconnect,
403 .id_table = smsusb_id_table,
406 int smsusb_module_init(void)
408 int rc = usb_register(&smsusb_driver);
410 printk(KERN_INFO "usb_register failed. Error number %d\n", rc);
412 printk(KERN_INFO "%s\n", __FUNCTION__);
417 void smsusb_module_exit(void)
419 usb_deregister(&smsusb_driver);
420 printk(KERN_INFO "%s\n", __FUNCTION__);
423 module_init(smsusb_module_init);
424 module_exit(smsusb_module_exit);
426 MODULE_DESCRIPTION("smsusb");
427 MODULE_AUTHOR("Anatoly Greenblatt,,, (anatolyg@siano-ms.com)");
428 MODULE_LICENSE("GPL");