2 * Abilis Systems Single DVB-T Receiver
3 * Copyright (C) 2008 Pierrick Hascoet <pierrick.hascoet@abilis.com>
4 * Copyright (C) 2010 Devin Heitmueller <dheitmueller@kernellabs.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; either version 2, or (at your option)
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <linux/kernel.h>
21 #include <linux/errno.h>
22 #include <linux/init.h>
23 #include <linux/slab.h>
24 #include <linux/module.h>
26 #include <linux/kref.h>
27 #include <asm/uaccess.h>
28 #include <linux/usb.h>
30 /* header file for Usb device driver*/
31 #include "as102_drv.h"
36 module_param_named(debug, debug, int, 0644);
37 MODULE_PARM_DESC(debug, "Turn on/off debugging (default: off)");
40 module_param_named(dual_tuner, dual_tuner, int, 0644);
41 MODULE_PARM_DESC(dual_tuner, "Activate Dual-Tuner config (default: off)");
43 static int fw_upload = 1;
44 module_param_named(fw_upload, fw_upload, int, 0644);
45 MODULE_PARM_DESC(fw_upload, "Turn on/off default FW upload (default: on)");
47 static int pid_filtering;
48 module_param_named(pid_filtering, pid_filtering, int, 0644);
49 MODULE_PARM_DESC(pid_filtering, "Activate HW PID filtering (default: off)");
51 static int ts_auto_disable;
52 module_param_named(ts_auto_disable, ts_auto_disable, int, 0644);
53 MODULE_PARM_DESC(ts_auto_disable, "Stream Auto Enable on FW (default: off)");
56 module_param_named(elna_enable, elna_enable, int, 0644);
57 MODULE_PARM_DESC(elna_enable, "Activate eLNA (default: on)");
59 #ifdef DVB_DEFINE_MOD_OPT_ADAPTER_NR
60 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
63 static void as102_stop_stream(struct as102_dev_t *dev)
65 struct as102_bus_adapter_t *bus_adap;
68 bus_adap = &dev->bus_adap;
72 if (bus_adap->ops->stop_stream != NULL)
73 bus_adap->ops->stop_stream(dev);
75 if (ts_auto_disable) {
76 if (mutex_lock_interruptible(&dev->bus_adap.lock))
79 if (as10x_cmd_stop_streaming(bus_adap) < 0)
80 dprintk(debug, "as10x_cmd_stop_streaming failed\n");
82 mutex_unlock(&dev->bus_adap.lock);
86 static int as102_start_stream(struct as102_dev_t *dev)
88 struct as102_bus_adapter_t *bus_adap;
92 bus_adap = &dev->bus_adap;
96 if (bus_adap->ops->start_stream != NULL)
97 ret = bus_adap->ops->start_stream(dev);
99 if (ts_auto_disable) {
100 if (mutex_lock_interruptible(&dev->bus_adap.lock))
103 ret = as10x_cmd_start_streaming(bus_adap);
105 mutex_unlock(&dev->bus_adap.lock);
111 static int as10x_pid_filter(struct as102_dev_t *dev,
112 int index, u16 pid, int onoff) {
114 struct as102_bus_adapter_t *bus_adap = &dev->bus_adap;
119 if (mutex_lock_interruptible(&dev->bus_adap.lock)) {
120 dprintk(debug, "mutex_lock_interruptible(lock) failed !\n");
126 ret = as10x_cmd_del_PID_filter(bus_adap, (uint16_t) pid);
127 dprintk(debug, "DEL_PID_FILTER([%02d] 0x%04x) ret = %d\n",
132 struct as10x_ts_filter filter;
134 filter.type = TS_PID_TYPE_TS;
138 ret = as10x_cmd_add_PID_filter(bus_adap, &filter);
139 dprintk(debug, "ADD_PID_FILTER([%02d -> %02d], 0x%04x) ret = %d\n",
140 index, filter.idx, filter.pid, ret);
145 mutex_unlock(&dev->bus_adap.lock);
151 static int as102_dvb_dmx_start_feed(struct dvb_demux_feed *dvbdmxfeed)
154 struct dvb_demux *demux = dvbdmxfeed->demux;
155 struct as102_dev_t *as102_dev = demux->priv;
159 if (mutex_lock_interruptible(&as102_dev->sem))
163 as10x_pid_filter(as102_dev,
164 dvbdmxfeed->index, dvbdmxfeed->pid, 1);
167 if (as102_dev->streaming++ == 0)
168 ret = as102_start_stream(as102_dev);
170 mutex_unlock(&as102_dev->sem);
175 static int as102_dvb_dmx_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
177 struct dvb_demux *demux = dvbdmxfeed->demux;
178 struct as102_dev_t *as102_dev = demux->priv;
182 if (mutex_lock_interruptible(&as102_dev->sem))
185 if (--as102_dev->streaming == 0)
186 as102_stop_stream(as102_dev);
189 as10x_pid_filter(as102_dev,
190 dvbdmxfeed->index, dvbdmxfeed->pid, 0);
193 mutex_unlock(&as102_dev->sem);
198 int as102_dvb_register(struct as102_dev_t *as102_dev)
203 ret = dvb_register_adapter(&as102_dev->dvb_adap,
206 #if defined(CONFIG_AS102_USB)
207 &as102_dev->bus_adap.usb_dev->dev
208 #elif defined(CONFIG_AS102_SPI)
209 &as102_dev->bus_adap.spi_dev->dev
211 #error >>> dvb_register_adapter <<<
213 #ifdef DVB_DEFINE_MOD_OPT_ADAPTER_NR
218 err("%s: dvb_register_adapter() failed (errno = %d)",
223 as102_dev->dvb_dmx.priv = as102_dev;
224 as102_dev->dvb_dmx.filternum = pid_filtering ? 16 : 256;
225 as102_dev->dvb_dmx.feednum = 256;
226 as102_dev->dvb_dmx.start_feed = as102_dvb_dmx_start_feed;
227 as102_dev->dvb_dmx.stop_feed = as102_dvb_dmx_stop_feed;
229 as102_dev->dvb_dmx.dmx.capabilities = DMX_TS_FILTERING |
230 DMX_SECTION_FILTERING;
232 as102_dev->dvb_dmxdev.filternum = as102_dev->dvb_dmx.filternum;
233 as102_dev->dvb_dmxdev.demux = &as102_dev->dvb_dmx.dmx;
234 as102_dev->dvb_dmxdev.capabilities = 0;
236 ret = dvb_dmx_init(&as102_dev->dvb_dmx);
238 err("%s: dvb_dmx_init() failed (errno = %d)", __func__, ret);
242 ret = dvb_dmxdev_init(&as102_dev->dvb_dmxdev, &as102_dev->dvb_adap);
244 err("%s: dvb_dmxdev_init() failed (errno = %d)", __func__,
249 ret = as102_dvb_register_fe(as102_dev, &as102_dev->dvb_fe);
251 err("%s: as102_dvb_register_frontend() failed (errno = %d)",
256 /* init bus mutex for token locking */
257 mutex_init(&as102_dev->bus_adap.lock);
259 /* init start / stop stream mutex */
260 mutex_init(&as102_dev->sem);
262 #if defined(CONFIG_FW_LOADER) || defined(CONFIG_FW_LOADER_MODULE)
264 * try to load as102 firmware. If firmware upload failed, we'll be
265 * able to upload it later.
268 try_then_request_module(as102_fw_upload(&as102_dev->bus_adap),
274 /* FIXME: free dvb_XXX */
278 void as102_dvb_unregister(struct as102_dev_t *as102_dev)
282 /* unregister as102 frontend */
283 as102_dvb_unregister_fe(&as102_dev->dvb_fe);
285 /* unregister demux device */
286 dvb_dmxdev_release(&as102_dev->dvb_dmxdev);
287 dvb_dmx_release(&as102_dev->dvb_dmx);
289 /* unregister dvb adapter */
290 dvb_unregister_adapter(&as102_dev->dvb_adap);
295 static int __init as102_driver_init(void)
301 /* register this driver with the low level subsystem */
302 #if defined(CONFIG_AS102_USB)
303 ret = usb_register(&as102_usb_driver);
305 err("usb_register failed (ret = %d)", ret);
307 #if defined(CONFIG_AS102_SPI)
308 ret = spi_register_driver(&as102_spi_driver);
310 printk(KERN_ERR "spi_register failed (ret = %d)", ret);
318 * Mandatory function : Adds a special section to the module indicating
319 * where initialisation function is defined
321 module_init(as102_driver_init);
324 * as102_driver_exit - as102 driver exit point
326 * This function is called when device has to be removed.
328 static void __exit as102_driver_exit(void)
331 /* deregister this driver with the low level bus subsystem */
332 #if defined(CONFIG_AS102_USB)
333 usb_deregister(&as102_usb_driver);
335 #if defined(CONFIG_AS102_SPI)
336 spi_unregister_driver(&as102_spi_driver);
342 * required function for unload: Adds a special section to the module
343 * indicating where unload function is defined
345 module_exit(as102_driver_exit);
346 /* modinfo details */
347 MODULE_DESCRIPTION(DRIVER_FULL_NAME);
348 MODULE_LICENSE("GPL");
349 MODULE_AUTHOR("Pierrick Hascoet <pierrick.hascoet@abilis.com>");
351 /* EOF - vim: set textwidth=80 ts=8 sw=8 sts=8 noet: */