1 /*
2 * flexcop.c - driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
3 *
4 * Copyright (C) 2004-5 Patrick Boettcher <patrick.boettcher@desy.de>
5 *
6 * based on the skystar2-driver
7 * Copyright (C) 2003 Vadim Catana, skystar@moldova.cc
8 *
9 * Acknowledgements:
10 * John Jurrius from BBTI, Inc. for extensive support with
11 * code examples and data books
12 *
13 * Bjarne Steinsbo, bjarne at steinsbo.com (some ideas for rewriting)
14 *
15 * Contributions to the skystar2-driver have been done by
16 * Vincenzo Di Massa, hawk.it at tiscalinet.it (several DiSEqC fixes)
17 * Roberto Ragusa, r.ragusa at libero.it (polishing, restyling the code)
18 * Niklas Peinecke, peinecke at gdv.uni-hannover.de (hardware pid/mac filtering)
19 *
20 *
21 * This program is free software; you can redistribute it and/or
22 * modify it under the terms of the GNU Lesser General Public License
23 * as published by the Free Software Foundation; either version 2.1
24 * of the License, or (at your option) any later version.
25 *
26 * This program is distributed in the hope that it will be useful,
27 * but WITHOUT ANY WARRANTY; without even the implied warranty of
28 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29 * GNU General Public License for more details.
30 *
31 * You should have received a copy of the GNU Lesser General Public License
32 * along with this program; if not, write to the Free Software
33 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
34 */
35
36 #include "flexcop.h"
37
38 #define DRIVER_NAME "B2C2 FlexcopII/II(b)/III digital TV receiver chip"
39 #define DRIVER_AUTHOR "Patrick Boettcher <patrick.boettcher@desy.de"
40
41 #ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG
42 #define DEBSTATUS ""
43 #else
44 #define DEBSTATUS " (debugging is not enabled)"
45 #endif
46
47 int b2c2_flexcop_debug;
48 module_param_named(debug, b2c2_flexcop_debug, int, 0644);
49 MODULE_PARM_DESC(debug, "set debug level (1=info,2=tuner,4=i2c,8=ts,16=sram,32=reg (|-able))." DEBSTATUS);
50 #undef DEBSTATUS
51
52 /* global zero for ibi values */
53 flexcop_ibi_value ibi_zero;
54
55 static int flexcop_dvb_start_feed(struct dvb_demux_feed *dvbdmxfeed)
56 {
57 struct flexcop_device *fc = dvbdmxfeed->demux->priv;
58 return flexcop_pid_feed_control(fc,dvbdmxfeed,1);
59 }
60
61 static int flexcop_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
62 {
63 struct flexcop_device *fc = dvbdmxfeed->demux->priv;
64 return flexcop_pid_feed_control(fc,dvbdmxfeed,0);
65 }
66
67 static int flexcop_dvb_init(struct flexcop_device *fc)
68 {
69 int ret;
70 if ((ret = dvb_register_adapter(&fc->dvb_adapter,"FlexCop Digital TV device",fc->owner,fc->dev)) < 0) {
71 err("error registering DVB adapter");
72 return ret;
73 }
74 fc->dvb_adapter.priv = fc;
75
76 fc->demux.dmx.capabilities = (DMX_TS_FILTERING | DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING);
77 fc->demux.priv = fc;
78
79 fc->demux.filternum = fc->demux.feednum = FC_MAX_FEED;
80
81 fc->demux.start_feed = flexcop_dvb_start_feed;
82 fc->demux.stop_feed = flexcop_dvb_stop_feed;
83 fc->demux.write_to_decoder = NULL;
84
85 if ((ret = dvb_dmx_init(&fc->demux)) < 0) {
86 err("dvb_dmx failed: error %d",ret);
87 goto err_dmx;
88 }
89
90 fc->hw_frontend.source = DMX_FRONTEND_0;
91
92 fc->dmxdev.filternum = fc->demux.feednum;
93 fc->dmxdev.demux = &fc->demux.dmx;
94 fc->dmxdev.capabilities = 0;
95 if ((ret = dvb_dmxdev_init(&fc->dmxdev, &fc->dvb_adapter)) < 0) {
96 err("dvb_dmxdev_init failed: error %d",ret);
97 goto err_dmx_dev;
98 }
99
100 if ((ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->hw_frontend)) < 0) {
101 err("adding hw_frontend to dmx failed: error %d",ret);
102 goto err_dmx_add_hw_frontend;
103 }
104
105 fc->mem_frontend.source = DMX_MEMORY_FE;
106 if ((ret = fc->demux.dmx.add_frontend(&fc->demux.dmx, &fc->mem_frontend)) < 0) {
107 err("adding mem_frontend to dmx failed: error %d",ret);
108 goto err_dmx_add_mem_frontend;
109 }
110
111 if ((ret = fc->demux.dmx.connect_frontend(&fc->demux.dmx, &fc->hw_frontend)) < 0) {
112 err("connect frontend failed: error %d",ret);
113 goto err_connect_frontend;
114 }
115
116 dvb_net_init(&fc->dvb_adapter, &fc->dvbnet, &fc->demux.dmx);
117
118 fc->init_state |= FC_STATE_DVB_INIT;
119 return 0;
120
121 err_connect_frontend:
122 fc->demux.dmx.remove_frontend(&fc->demux.dmx,&fc->mem_frontend);
123 err_dmx_add_mem_frontend:
124 fc->demux.dmx.remove_frontend(&fc->demux.dmx,&fc->hw_frontend);
125 err_dmx_add_hw_frontend:
126 dvb_dmxdev_release(&fc->dmxdev);
127 err_dmx_dev:
128 dvb_dmx_release(&fc->demux);
129 err_dmx:
130 dvb_unregister_adapter(&fc->dvb_adapter);
131 return ret;
132 }
133
134 static void flexcop_dvb_exit(struct flexcop_device *fc)
135 {
136 if (fc->init_state & FC_STATE_DVB_INIT) {
137 dvb_net_release(&fc->dvbnet);
138
139 fc->demux.dmx.close(&fc->demux.dmx);
140 fc->demux.dmx.remove_frontend(&fc->demux.dmx,&fc->mem_frontend);
141 fc->demux.dmx.remove_frontend(&fc->demux.dmx,&fc->hw_frontend);
142 dvb_dmxdev_release(&fc->dmxdev);
143 dvb_dmx_release(&fc->demux);
144 dvb_unregister_adapter(&fc->dvb_adapter);
145
146 deb_info("deinitialized dvb stuff\n");
147 }
148 fc->init_state &= ~FC_STATE_DVB_INIT;
149 }
150
151 /* these methods are necessary to achieve the long-term-goal of hiding the
152 * struct flexcop_device from the bus-parts */
153 void flexcop_pass_dmx_data(struct flexcop_device *fc, u8 *buf, u32 len)
154 {
155 dvb_dmx_swfilter(&fc->demux, buf, len);
156 }
157 EXPORT_SYMBOL(flexcop_pass_dmx_data);
158
159 void flexcop_pass_dmx_packets(struct flexcop_device *fc, u8 *buf, u32 no)
160 {
161 dvb_dmx_swfilter_packets(&fc->demux, buf, no);
162 }
163 EXPORT_SYMBOL(flexcop_pass_dmx_packets);
164
165 static void flexcop_reset(struct flexcop_device *fc)
166 {
167 flexcop_ibi_value v210,v204;
168
169 /* reset the flexcop itself */
170 fc->write_ibi_reg(fc,ctrl_208,ibi_zero);
171
172 v210.raw = 0;
173 v210.sw_reset_210.reset_block_000 = 1;
174 v210.sw_reset_210.reset_block_100 = 1;
175 v210.sw_reset_210.reset_block_200 = 1;
176 v210.sw_reset_210.reset_block_300 = 1;
177 v210.sw_reset_210.reset_block_400 = 1;
178 v210.sw_reset_210.reset_block_500 = 1;
179 v210.sw_reset_210.reset_block_600 = 1;
180 v210.sw_reset_210.reset_block_700 = 1;
181 v210.sw_reset_210.Block_reset_enable = 0xb2;
182
183 v210.sw_reset_210.Special_controls = 0xc259;
184
185 fc->write_ibi_reg(fc,sw_reset_210,v210);
186 msleep(1);
187
188 /* reset the periphical devices */
189
190 v204 = fc->read_ibi_reg(fc,misc_204);
191 v204.misc_204.Per_reset_sig = 0;
192 fc->write_ibi_reg(fc,misc_204,v204);
193 msleep(1);
194 v204.misc_204.Per_reset_sig = 1;
195 fc->write_ibi_reg(fc,misc_204,v204);
196 }
197
198 void flexcop_reset_block_300(struct flexcop_device *fc)
199 {
200 flexcop_ibi_value v208_save = fc->read_ibi_reg(fc,ctrl_208),
201 v210 = fc->read_ibi_reg(fc,sw_reset_210);
202
203 deb_rdump("208: %08x, 210: %08x\n",v208_save.raw,v210.raw);
204
205 fc->write_ibi_reg(fc,ctrl_208,ibi_zero);
206
207 v210.sw_reset_210.reset_block_300 = 1;
208 v210.sw_reset_210.Block_reset_enable = 0xb2;
209
210 fc->write_ibi_reg(fc,sw_reset_210,v210);
211 msleep(1);
212
213 fc->write_ibi_reg(fc,ctrl_208,v208_save);
214 }
215
216 struct flexcop_device *flexcop_device_kmalloc(size_t bus_specific_len)
217 {
218 void *bus;
219 struct flexcop_device *fc = kzalloc(sizeof(struct flexcop_device), GFP_KERNEL);
220 if (!fc) {
221 err("no memory");
222 return NULL;
223 }
224
225 bus = kzalloc(bus_specific_len, GFP_KERNEL);
226 if (!bus) {
227 err("no memory");
228 kfree(fc);
229 return NULL;
230 }
231
232 fc->bus_specific = bus;
233
234 return fc;
235 }
236 EXPORT_SYMBOL(flexcop_device_kmalloc);
237
238 void flexcop_device_kfree(struct flexcop_device *fc)
239 {
240 kfree(fc->bus_specific);
241 kfree(fc);
242 }
243 EXPORT_SYMBOL(flexcop_device_kfree);
244
245 int flexcop_device_initialize(struct flexcop_device *fc)
246 {
247 int ret;
248 ibi_zero.raw = 0;
249
250 flexcop_reset(fc);
251 flexcop_determine_revision(fc);
252 flexcop_sram_init(fc);
253 flexcop_hw_filter_init(fc);
254
255 flexcop_smc_ctrl(fc, 0);
256
257 if ((ret = flexcop_dvb_init(fc)))
258 goto error;
259
260 /* do the MAC address reading after initializing the dvb_adapter */
261 if (fc->get_mac_addr(fc, 0) == 0) {
262 u8 *b = fc->dvb_adapter.proposed_mac;
263 info("MAC address = %02x:%02x:%02x:%02x:%02x:%02x", b[0],b[1],b[2],b[3],b[4],b[5]);
264 flexcop_set_mac_filter(fc,b);
265 flexcop_mac_filter_ctrl(fc,1);
266 } else
267 warn("reading of MAC address failed.\n");
268
269
270 if ((ret = flexcop_i2c_init(fc)))
271 goto error;
272
273 if ((ret = flexcop_frontend_init(fc)))
274 goto error;
275
276 flexcop_device_name(fc,"initialization of","complete");
277
278 return 0;
279
280 error:
281 flexcop_device_exit(fc);
282 return ret;
283 }
284 EXPORT_SYMBOL(flexcop_device_initialize);
285
286 void flexcop_device_exit(struct flexcop_device *fc)
287 {
288 flexcop_frontend_exit(fc);
289 flexcop_i2c_exit(fc);
290 flexcop_dvb_exit(fc);
291 }
292 EXPORT_SYMBOL(flexcop_device_exit);
293
294 static int flexcop_module_init(void)
295 {
296 info(DRIVER_NAME " loaded successfully");
297 return 0;
298 }
299
300 static void flexcop_module_cleanup(void)
301 {
302 info(DRIVER_NAME " unloaded successfully");
303 }
304
305 module_init(flexcop_module_init);
306 module_exit(flexcop_module_cleanup);
307
308 MODULE_AUTHOR(DRIVER_AUTHOR);
309 MODULE_DESCRIPTION(DRIVER_NAME);
310 MODULE_LICENSE("GPL");
311
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