2 tm6000-dvb.c - dvb-t support for TM5600/TM6000/TM6010 USB video capture devices
4 Copyright (C) 2007 Michel Ludwig <michel.ludwig@gmail.com>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation version 2
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <linux/kernel.h>
21 #include <linux/usb.h>
24 #include "tm6000-regs.h"
28 #include <media/tuner.h>
30 #include "tuner-xc2028.h"
33 static void inline print_err_status (struct tm6000_core *dev,
34 int packet, int status)
36 char *errmsg = "Unknown";
40 errmsg = "unlinked synchronuously";
43 errmsg = "unlinked asynchronuously";
46 errmsg = "Buffer error (overrun)";
49 errmsg = "Stalled (device not responding)";
52 errmsg = "Babble (bad cable?)";
55 errmsg = "Bit-stuff error (bad cable?)";
58 errmsg = "CRC/Timeout (could be anything)";
61 errmsg = "Device does not respond";
65 dprintk(dev, 1, "URB status %d [%s].\n",
68 dprintk(dev, 1, "URB packet %d, status %d [%s].\n",
69 packet, status, errmsg);
73 static void tm6000_urb_received(struct urb *urb)
76 struct tm6000_core* dev = urb->context;
78 if(urb->status != 0) {
79 print_err_status (dev,0,urb->status);
81 else if(urb->actual_length>0){
82 dvb_dmx_swfilter(&dev->dvb->demux, urb->transfer_buffer,
86 if(dev->dvb->streams > 0) {
87 ret = usb_submit_urb(urb, GFP_ATOMIC);
89 printk(KERN_ERR "tm6000: error %s\n", __FUNCTION__);
90 kfree(urb->transfer_buffer);
96 int tm6000_start_stream(struct tm6000_core *dev)
99 unsigned int pipe, size;
100 struct tm6000_dvb *dvb = dev->dvb;
102 printk(KERN_INFO "tm6000: got start stream request %s\n",__FUNCTION__);
104 if (dev->mode != TM6000_MODE_DIGITAL) {
105 tm6000_init_digital_mode(dev);
106 dev->mode = TM6000_MODE_DIGITAL;
109 dvb->bulk_urb = usb_alloc_urb(0, GFP_KERNEL);
110 if(dvb->bulk_urb == NULL) {
111 printk(KERN_ERR "tm6000: couldn't allocate urb\n");
115 pipe = usb_rcvbulkpipe(dev->udev, dev->bulk_in.endp->desc.bEndpointAddress
116 & USB_ENDPOINT_NUMBER_MASK);
118 size = usb_maxpacket(dev->udev, pipe, usb_pipeout(pipe));
119 size = size * 15; /* 512 x 8 or 12 or 15 */
121 dvb->bulk_urb->transfer_buffer = kzalloc(size, GFP_KERNEL);
122 if(dvb->bulk_urb->transfer_buffer == NULL) {
123 usb_free_urb(dvb->bulk_urb);
124 printk(KERN_ERR "tm6000: couldn't allocate transfer buffer!\n");
128 usb_fill_bulk_urb(dvb->bulk_urb, dev->udev, pipe,
129 dvb->bulk_urb->transfer_buffer,
131 tm6000_urb_received, dev);
133 ret = usb_clear_halt(dev->udev, pipe);
135 printk(KERN_ERR "tm6000: error %i in %s during pipe reset\n",ret,__FUNCTION__);
139 printk(KERN_ERR "tm6000: pipe resetted\n");
142 /* mutex_lock(&tm6000_driver.open_close_mutex); */
143 ret = usb_submit_urb(dvb->bulk_urb, GFP_KERNEL);
145 /* mutex_unlock(&tm6000_driver.open_close_mutex); */
147 printk(KERN_ERR "tm6000: submit of urb failed (error=%i)\n",ret);
149 kfree(dvb->bulk_urb->transfer_buffer);
150 usb_free_urb(dvb->bulk_urb);
157 void tm6000_stop_stream(struct tm6000_core *dev)
159 struct tm6000_dvb *dvb = dev->dvb;
162 printk (KERN_INFO "urb killing\n");
163 usb_kill_urb(dvb->bulk_urb);
164 printk (KERN_INFO "urb buffer free\n");
165 kfree(dvb->bulk_urb->transfer_buffer);
166 usb_free_urb(dvb->bulk_urb);
167 dvb->bulk_urb = NULL;
171 int tm6000_start_feed(struct dvb_demux_feed *feed)
173 struct dvb_demux *demux = feed->demux;
174 struct tm6000_core *dev = demux->priv;
175 struct tm6000_dvb *dvb = dev->dvb;
176 printk(KERN_INFO "tm6000: got start feed request %s\n",__FUNCTION__);
178 mutex_lock(&dvb->mutex);
179 if(dvb->streams == 0) {
181 /* mutex_init(&tm6000_dev->streming_mutex); */
182 tm6000_start_stream(dev);
187 mutex_unlock(&dvb->mutex);
192 int tm6000_stop_feed(struct dvb_demux_feed *feed) {
193 struct dvb_demux *demux = feed->demux;
194 struct tm6000_core *dev = demux->priv;
195 struct tm6000_dvb *dvb = dev->dvb;
197 printk(KERN_INFO "tm6000: got stop feed request %s\n",__FUNCTION__);
199 mutex_lock(&dvb->mutex);
201 printk (KERN_INFO "stream %#x\n", dvb->streams);
203 if(dvb->streams == 0) {
204 printk (KERN_INFO "stop stream\n");
205 tm6000_stop_stream(dev);
206 /* mutex_destroy(&tm6000_dev->streaming_mutex); */
208 mutex_unlock(&dvb->mutex);
209 /* mutex_destroy(&tm6000_dev->streaming_mutex); */
214 int tm6000_dvb_attach_frontend(struct tm6000_core *dev)
216 struct tm6000_dvb *dvb = dev->dvb;
218 if(dev->caps.has_zl10353) {
219 struct zl10353_config config =
220 {.demod_address = dev->demod_addr,
224 .disable_i2c_gate_ctrl = 1,
227 dvb->frontend = dvb_attach(zl10353_attach, &config,
231 printk(KERN_ERR "tm6000: no frontend defined for the device!\n");
235 return (!dvb->frontend) ? -1 : 0;
238 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
240 int tm6000_dvb_register(struct tm6000_core *dev)
243 struct tm6000_dvb *dvb = dev->dvb;
245 mutex_init(&dvb->mutex);
249 /* attach the frontend */
250 ret = tm6000_dvb_attach_frontend(dev);
252 printk(KERN_ERR "tm6000: couldn't attach the frontend!\n");
256 ret = dvb_register_adapter(&dvb->adapter, "Trident TVMaster 6000 DVB-T",
257 THIS_MODULE, &dev->udev->dev, adapter_nr);
258 dvb->adapter.priv = dev;
261 switch (dev->tuner_type) {
263 struct xc2028_config cfg = {
264 .i2c_adap = &dev->i2c_adap,
265 .i2c_addr = dev->tuner_addr,
268 dvb->frontend->callback = tm6000_tuner_callback;
269 ret = dvb_register_frontend(&dvb->adapter, dvb->frontend);
272 "tm6000: couldn't register frontend\n");
276 if (!dvb_attach(xc2028_attach, dvb->frontend, &cfg)) {
277 printk(KERN_ERR "tm6000: couldn't register "
278 "frontend (xc3028)\n");
282 printk(KERN_INFO "tm6000: XC2028/3028 asked to be "
283 "attached to frontend!\n");
287 struct xc5000_config cfg = {
288 .i2c_address = dev->tuner_addr,
291 dvb->frontend->callback = tm6000_xc5000_callback;
292 ret = dvb_register_frontend(&dvb->adapter, dvb->frontend);
295 "tm6000: couldn't register frontend\n");
299 if (!dvb_attach(xc5000_attach, dvb->frontend, &dev->i2c_adap, &cfg)) {
300 printk(KERN_ERR "tm6000: couldn't register "
301 "frontend (xc5000)\n");
305 printk(KERN_INFO "tm6000: XC5000 asked to be "
306 "attached to frontend!\n");
311 printk(KERN_ERR "tm6000: no frontend found\n");
314 dvb->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING
315 | DMX_MEMORY_BASED_FILTERING;
316 dvb->demux.priv = dev;
317 dvb->demux.filternum = 8;
318 dvb->demux.feednum = 8;
319 dvb->demux.start_feed = tm6000_start_feed;
320 dvb->demux.stop_feed = tm6000_stop_feed;
321 dvb->demux.write_to_decoder = NULL;
322 ret = dvb_dmx_init(&dvb->demux);
324 printk("tm6000: dvb_dmx_init failed (errno = %d)\n", ret);
328 dvb->dmxdev.filternum = dev->dvb->demux.filternum;
329 dvb->dmxdev.demux = &dev->dvb->demux.dmx;
330 dvb->dmxdev.capabilities = 0;
332 ret = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
334 printk("tm6000: dvb_dmxdev_init failed (errno = %d)\n", ret);
341 dvb_dmx_release(&dvb->demux);
344 dvb_frontend_detach(dvb->frontend);
345 dvb_unregister_frontend(dvb->frontend);
348 dvb_unregister_adapter(&dvb->adapter);
353 void tm6000_dvb_unregister(struct tm6000_core *dev)
355 struct tm6000_dvb *dvb = dev->dvb;
357 if(dvb->bulk_urb != NULL) {
358 struct urb *bulk_urb = dvb->bulk_urb;
360 kfree(bulk_urb->transfer_buffer);
361 bulk_urb->transfer_buffer = NULL;
362 usb_unlink_urb(bulk_urb);
363 usb_free_urb(bulk_urb);
366 /* mutex_lock(&tm6000_driver.open_close_mutex); */
368 dvb_frontend_detach(dvb->frontend);
369 dvb_unregister_frontend(dvb->frontend);
372 dvb_dmxdev_release(&dvb->dmxdev);
373 dvb_dmx_release(&dvb->demux);
374 dvb_unregister_adapter(&dvb->adapter);
375 mutex_destroy(&dvb->mutex);
376 /* mutex_unlock(&tm6000_driver.open_close_mutex); */